Initial commit

dgl/App.hpp

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+/*
+ * DISTRHO Plugin Toolkit (DPT)
+ * Copyright (C) 2012-2013 Filipe Coelho <falktx@falktx.com>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any purpose with
+ * or without fee is hereby granted, provided that the above copyright notice and this
+ * permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD
+ * TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN
+ * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+ * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
+ * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef DGL_APP_HPP_INCLUDED
+#define DGL_APP_HPP_INCLUDED
+
+#include "Base.hpp"
+
+START_NAMESPACE_DGL
+
+class Window;
+
+// -----------------------------------------------------------------------
+
+class App
+{
+public:
+    App();
+    ~App();
+
+    void idle();
+    void exec();
+    void quit();
+    bool isQuiting() const;
+
+private:
+    struct PrivateData;
+    PrivateData* const pData;
+    friend class Window;
+
+    void addWindow(Window* const window);
+    void removeWindow(Window* const window);
+    void oneShown();
+    void oneHidden();
+};
+
+// -----------------------------------------------------------------------
+
+END_NAMESPACE_DGL
+
+#endif // DGL_APP_HPP_INCLUDED

dgl/Base.hpp

@@ -0,0 +1,143 @@
+/*
+ * DISTRHO Plugin Toolkit (DPT)
+ * Copyright (C) 2012-2013 Filipe Coelho <falktx@falktx.com>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any purpose with
+ * or without fee is hereby granted, provided that the above copyright notice and this
+ * permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD
+ * TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN
+ * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+ * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
+ * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef DGL_BASE_HPP_INCLUDED
+#define DGL_BASE_HPP_INCLUDED
+
+#if defined(WIN32) || defined(_WIN32) || defined(__WIN32__)
+# define DGL_OS_WINDOWS 1
+#elif defined(__APPLE__)
+# define DGL_OS_MAC     1
+#elif defined(__HAIKU__)
+# define DGL_OS_HAIKU   1
+#elif defined(__linux__)
+# define DGL_OS_LINUX   1
+#endif
+
+#if defined(HAVE_CPP11_SUPPORT)
+# define PROPER_CPP11_SUPPORT
+#elif defined(__GNUC__) && (__cplusplus >= 201103L || defined(__GXX_EXPERIMENTAL_CXX0X__))
+# if  (__GNUC__ * 100 + __GNUC_MINOR__) >= 405
+#  define PROPER_CPP11_SUPPORT
+#  if  (__GNUC__ * 100 + __GNUC_MINOR__) < 407
+#   define override // gcc4.7+ only
+#  endif
+# endif
+#endif
+
+#ifndef PROPER_CPP11_SUPPORT
+# ifndef __clang__
+#  define noexcept throw()
+# endif
+# define override
+# define nullptr (0)
+#endif
+
+#ifndef DGL_NAMESPACE
+# define DGL_NAMESPACE DGL
+#endif
+
+#define START_NAMESPACE_DGL namespace DGL_NAMESPACE {
+#define END_NAMESPACE_DGL }
+#define USE_NAMESPACE_DGL using namespace DGL_NAMESPACE;
+
+#if DGL_OS_MAC
+# include <OpenGL/gl.h>
+#else
+# include <GL/gl.h>
+#endif
+
+#if defined(GL_BGR_EXT) && ! defined(GL_BGR)
+# define GL_BGR GL_BGR_EXT
+#endif
+
+#if defined(GL_BGRA_EXT) && ! defined(GL_BGRA)
+# define GL_BGRA GL_BGRA_EXT
+#endif
+
+#ifndef GL_CLAMP_TO_BORDER
+# define GL_CLAMP_TO_BORDER 0x812D
+#endif
+
+START_NAMESPACE_DGL
+
+// -----------------------------------------------------------------------
+
+/*
+ * Convenience symbols for ASCII control characters.
+ */
+enum Char {
+    CHAR_BACKSPACE = 0x08,
+    CHAR_ESCAPE    = 0x1B,
+    CHAR_DELETE    = 0x7F
+};
+
+/*
+ * Special (non-Unicode) keyboard keys.
+ */
+enum Key {
+    KEY_F1 = 1,
+    KEY_F2,
+    KEY_F3,
+    KEY_F4,
+    KEY_F5,
+    KEY_F6,
+    KEY_F7,
+    KEY_F8,
+    KEY_F9,
+    KEY_F10,
+    KEY_F11,
+    KEY_F12,
+    KEY_LEFT,
+    KEY_UP,
+    KEY_RIGHT,
+    KEY_DOWN,
+    KEY_PAGE_UP,
+    KEY_PAGE_DOWN,
+    KEY_HOME,
+    KEY_END,
+    KEY_INSERT,
+    KEY_SHIFT,
+    KEY_CTRL,
+    KEY_ALT,
+    KEY_SUPER
+};
+
+/*
+ * Keyboard modifier flags.
+ */
+enum Modifier {
+    MODIFIER_SHIFT = 1 << 0, /**< Shift key */
+    MODIFIER_CTRL  = 1 << 1, /**< Control key */
+    MODIFIER_ALT   = 1 << 2, /**< Alt/Option key */
+    MODIFIER_SUPER = 1 << 3  /**< Mod4/Command/Windows key */
+};
+
+/*
+ * Cross-platform sleep function.
+ */
+void sleep(unsigned int secs);
+
+/*
+ * Cross-platform msleep function.
+ */
+void msleep(unsigned int msecs);
+
+// -----------------------------------------------------------------------
+
+END_NAMESPACE_DGL
+
+#endif // DGL_BASE_HPP_INCLUDED

dgl/CairoWidget.hpp

@@ -0,0 +1,142 @@
+/*
+ * DISTRHO Plugin Toolkit (DPT)
+ * Copyright (C) 2012-2013 Filipe Coelho <falktx@falktx.com>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any purpose with
+ * or without fee is hereby granted, provided that the above copyright notice and this
+ * permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD
+ * TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN
+ * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+ * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
+ * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef DGL_CAIRO_WIDGET_HPP_INCLUDED
+#define DGL_CAIRO_WIDGET_HPP_INCLUDED
+
+#include "Widget.hpp"
+
+#include <cairo.h>
+
+START_NAMESPACE_DGL
+
+// -----------------------------------------------------------------------
+
+class CairoWidget : public Widget
+{
+public:
+    CairoWidget(Window& parent)
+        : Widget(parent),
+          fContext(nullptr),
+          fSurface(nullptr),
+          fTextureId(0)
+    {
+    }
+
+protected:
+    virtual void cairoDisplay(cairo_t* const context) = 0;
+
+private:
+    void onReshape(int width, int height) override
+    {
+        // handle resize
+        setSize(width, height);
+        Widget::onReshape(width, height);
+
+        // free previous if needed
+        onClose();
+
+        // create new
+        fSurface = cairo_image_surface_create(CAIRO_FORMAT_RGB24, width, height);
+        fContext = cairo_create(fSurface);
+
+        glGenTextures(1, &fTextureId);
+    }
+
+    void onClose() override
+    {
+        if (fContext != nullptr)
+        {
+            cairo_destroy(fContext);
+            fContext = nullptr;
+        }
+
+        if (fSurface != nullptr)
+        {
+            cairo_surface_destroy(fSurface);
+            fSurface = nullptr;
+        }
+
+        if (fTextureId != 0)
+        {
+            glDeleteTextures(1, &fTextureId);
+            fTextureId = 0;
+        }
+    }
+
+    void onDisplay() override
+    {
+        // wait for first resize
+        if (fSurface == nullptr || fContext == nullptr)
+        {
+            glClear(GL_COLOR_BUFFER_BIT);
+            return;
+        }
+
+        const int width  = getWidth();
+        const int height = getHeight();
+
+        // draw cairo stuff
+        cairoDisplay(fContext);
+
+        // get cairo surface data (RGB24)
+        unsigned char* const surfaceData = cairo_image_surface_get_data(fSurface);
+
+        // enable GL texture
+        glEnable(GL_TEXTURE_RECTANGLE_ARB);
+
+        // set texture params
+        glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
+        glTexParameteri(GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
+        glTexParameteri(GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+
+        // bind texture to surface data
+        glBindTexture(GL_TEXTURE_RECTANGLE_ARB, fTextureId);
+        glTexImage2D(GL_TEXTURE_RECTANGLE_ARB, 0, GL_RGBA, width, height, 0, GL_BGRA, GL_UNSIGNED_BYTE, surfaceData);
+
+        // draw the texture
+        glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+
+        glBegin(GL_QUADS);
+          glTexCoord2i(0, height);
+          glVertex2i(0, height);
+
+          glTexCoord2i(width, height);
+          glVertex2i(width, height);
+
+          glTexCoord2i(width, 0);
+          glVertex2i(width, 0);
+
+          glTexCoord2i(0, 0);
+          glVertex2i(0, 0);
+        glEnd();
+
+        // cleanup
+        glBindTexture(GL_TEXTURE_RECTANGLE_ARB, 0);
+        glDisable(GL_TEXTURE_RECTANGLE_ARB);
+    }
+
+private:
+    cairo_t*         fContext;
+    cairo_surface_t* fSurface;
+    GLuint           fTextureId;
+};
+
+// -----------------------------------------------------------------------
+
+END_NAMESPACE_DGL
+
+#endif // DGL_CAIRO_WIDGET_HPP_INCLUDED

dgl/Geometry.hpp

@@ -0,0 +1,133 @@
+/*
+ * DISTRHO Plugin Toolkit (DPT)
+ * Copyright (C) 2012-2013 Filipe Coelho <falktx@falktx.com>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any purpose with
+ * or without fee is hereby granted, provided that the above copyright notice and this
+ * permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD
+ * TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN
+ * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+ * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
+ * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef DGL_GEOMETRY_HPP_INCLUDED
+#define DGL_GEOMETRY_HPP_INCLUDED
+
+#include "Base.hpp"
+
+START_NAMESPACE_DGL
+
+// -----------------------------------------------------------------------
+
+template<typename T>
+class Point
+{
+public:
+    Point() noexcept;
+    Point(T x, T y) noexcept;
+    Point(const Point<T>& pos) noexcept;
+
+    T getX() const noexcept;
+    T getY() const noexcept;
+
+    void setX(T x) noexcept;
+    void setY(T y) noexcept;
+
+    void move(T x, T y) noexcept;
+    void move(const Point<T>& pos) noexcept;
+
+    Point<T>& operator=(const Point<T>& pos) noexcept;
+    Point<T>& operator+=(const Point<T>& pos) noexcept;
+    Point<T>& operator-=(const Point<T>& pos) noexcept;
+    bool operator==(const Point<T>& pos) const noexcept;
+    bool operator!=(const Point<T>& pos) const noexcept;
+
+private:
+    T fX, fY;
+    template<typename> friend class Rectangle;
+};
+
+// -----------------------------------------------------------------------
+
+template<typename T>
+class Size
+{
+public:
+    Size() noexcept;
+    Size(T width, T height) noexcept;
+    Size(const Size<T>& size) noexcept;
+
+    T getWidth() const noexcept;
+    T getHeight() const noexcept;
+
+    void setWidth(T width) noexcept;
+    void setHeight(T height) noexcept;
+
+    Size<T>& operator=(const Size<T>& size) noexcept;
+    Size<T>& operator+=(const Size<T>& size) noexcept;
+    Size<T>& operator-=(const Size<T>& size) noexcept;
+    Size<T>& operator*=(T m) noexcept;
+    Size<T>& operator/=(T d) noexcept;
+    bool operator==(const Size<T>& size) const noexcept;
+    bool operator!=(const Size<T>& size) const noexcept;
+
+private:
+    T fWidth, fHeight;
+    template<typename> friend class Rectangle;
+};
+
+// -----------------------------------------------------------------------
+
+template<typename T>
+class Rectangle
+{
+public:
+    Rectangle() noexcept;
+    Rectangle(T x, T y, T width, T height) noexcept;
+    Rectangle(T x, T y, const Size<T>& size) noexcept;
+    Rectangle(const Point<T>& pos, T width, T height) noexcept;
+    Rectangle(const Point<T>& pos, const Size<T>& size) noexcept;
+    Rectangle(const Rectangle<T>& rect) noexcept;
+
+    T getX() const noexcept;
+    T getY() const noexcept;
+    T getWidth() const noexcept;
+    T getHeight() const noexcept;
+
+    const Point<T>& getPos() const noexcept;
+    const Size<T>&  getSize() const noexcept;
+
+    bool contains(T x, T y) const noexcept;
+    bool contains(const Point<T>& pos) const noexcept;
+    bool containsX(T x) const noexcept;
+    bool containsY(T y) const noexcept;
+
+    void setX(T x) noexcept;
+    void setY(T y) noexcept;
+    void setPos(T x, T y) noexcept;
+    void setPos(const Point<T>& pos) noexcept;
+
+    void move(T x, T y) noexcept;
+    void move(const Point<T>& pos) noexcept;
+
+    void setWidth(T width) noexcept;
+    void setHeight(T height) noexcept;
+    void setSize(T width, T height) noexcept;
+    void setSize(const Size<T>& size) noexcept;
+
+    Rectangle<T>& operator=(const Rectangle<T>& rect) noexcept;
+
+private:
+    Point<T> fPos;
+    Size<T>  fSize;
+};
+
+// -----------------------------------------------------------------------
+
+END_NAMESPACE_DGL
+
+#endif // DGL_GEOMETRY_HPP_INCLUDED

dgl/Image.hpp

@@ -0,0 +1,66 @@
+/*
+ * DISTRHO Plugin Toolkit (DPT)
+ * Copyright (C) 2012-2013 Filipe Coelho <falktx@falktx.com>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any purpose with
+ * or without fee is hereby granted, provided that the above copyright notice and this
+ * permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD
+ * TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN
+ * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+ * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
+ * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef DGL_IMAGE_HPP_INCLUDED
+#define DGL_IMAGE_HPP_INCLUDED
+
+#include "Geometry.hpp"
+
+START_NAMESPACE_DGL
+
+// -----------------------------------------------------------------------
+
+class Image
+{
+public:
+    Image() noexcept;
+    Image(const char* rawData, int width, int height, GLenum format = GL_BGRA, GLenum type = GL_UNSIGNED_BYTE) noexcept;
+    Image(const char* rawData, const Size<int>& size, GLenum format = GL_BGRA, GLenum type = GL_UNSIGNED_BYTE) noexcept;
+    Image(const Image& image) noexcept;
+
+    void loadFromMemory(const char* rawData, int width, int height, GLenum format = GL_BGRA, GLenum type = GL_UNSIGNED_BYTE) noexcept;
+    void loadFromMemory(const char* rawData, const Size<int>& size, GLenum format = GL_BGRA, GLenum type = GL_UNSIGNED_BYTE) noexcept;
+
+    bool isValid() const noexcept;
+
+    int getWidth() const noexcept;
+    int getHeight() const noexcept;
+    const Size<int>& getSize() const noexcept;
+
+    const char* getRawData() const noexcept;
+    GLenum getFormat() const noexcept;
+    GLenum getType() const noexcept;
+
+    void draw() const;
+    void draw(int x, int y) const;
+    void draw(const Point<int>& pos) const;
+
+    Image& operator=(const Image& image) noexcept;
+    bool operator==(const Image& image) const noexcept;
+    bool operator!=(const Image& image) const noexcept;
+
+private:
+    const char* fRawData;
+    Size<int> fSize;
+    GLenum fFormat;
+    GLenum fType;
+};
+
+// -----------------------------------------------------------------------
+
+END_NAMESPACE_DGL
+
+#endif // DGL_IMAGE_HPP_INCLUDED

dgl/ImageAboutWindow.hpp

@@ -0,0 +1,56 @@
+/*
+ * DISTRHO Plugin Toolkit (DPT)
+ * Copyright (C) 2012-2013 Filipe Coelho <falktx@falktx.com>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any purpose with
+ * or without fee is hereby granted, provided that the above copyright notice and this
+ * permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD
+ * TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN
+ * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+ * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
+ * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef DGL_IMAGE_ABOUT_WINDOW_HPP_INCLUDED
+#define DGL_IMAGE_ABOUT_WINDOW_HPP_INCLUDED
+
+#include "Image.hpp"
+#include "Widget.hpp"
+#include "Window.hpp"
+
+#ifdef PROPER_CPP11_SUPPORT
+# include <cstdint>
+#else
+# include <stdint.h>
+#endif
+
+START_NAMESPACE_DGL
+
+// -----------------------------------------------------------------------
+
+class ImageAboutWindow : public Window,
+                         public Widget
+{
+public:
+    ImageAboutWindow(App& app, Window& parent, const Image& image = Image());
+    ImageAboutWindow(Widget* widget, const Image& image = Image());
+
+    void setImage(const Image& image);
+
+protected:
+    void onDisplay() override;
+    bool onMouse(int button, bool press, int x, int y) override;
+    bool onKeyboard(bool press, uint32_t key) override;
+
+private:
+    Image fImgBackground;
+};
+
+// -----------------------------------------------------------------------
+
+END_NAMESPACE_DGL
+
+#endif // DGL_IMAGE_ABOUT_WINDOW_HPP_INCLUDED

dgl/ImageButton.hpp

@@ -0,0 +1,64 @@
+/*
+ * DISTRHO Plugin Toolkit (DPT)
+ * Copyright (C) 2012-2013 Filipe Coelho <falktx@falktx.com>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any purpose with
+ * or without fee is hereby granted, provided that the above copyright notice and this
+ * permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD
+ * TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN
+ * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+ * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
+ * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef DGL_IMAGE_BUTTON_HPP_INCLUDED
+#define DGL_IMAGE_BUTTON_HPP_INCLUDED
+
+#include "Image.hpp"
+#include "Widget.hpp"
+
+START_NAMESPACE_DGL
+
+// -----------------------------------------------------------------------
+
+class ImageButton : public Widget
+{
+public:
+    class Callback
+    {
+    public:
+        virtual ~Callback() {}
+        virtual void imageButtonClicked(ImageButton* imageButton, int button) = 0;
+    };
+
+    ImageButton(Window& parent, const Image& image);
+    ImageButton(Widget* widget, const Image& image);
+    ImageButton(Window& parent, const Image& imageNormal, const Image& imageHover, const Image& imageDown);
+    ImageButton(Widget* widget, const Image& imageNormal, const Image& imageHover, const Image& imageDown);
+    ImageButton(const ImageButton& imageButton);
+
+    void setCallback(Callback* callback);
+
+protected:
+     void onDisplay() override;
+     bool onMouse(int button, bool press, int x, int y) override;
+     bool onMotion(int x, int y) override;
+
+private:
+    Image  fImageNormal;
+    Image  fImageHover;
+    Image  fImageDown;
+    Image* fCurImage;
+    int    fCurButton;
+
+    Callback* fCallback;
+};
+
+// -----------------------------------------------------------------------
+
+END_NAMESPACE_DGL
+
+#endif // DGL_IMAGE_BUTTON_HPP_INCLUDED

dgl/ImageKnob.hpp

@@ -0,0 +1,89 @@
+/*
+ * DISTRHO Plugin Toolkit (DPT)
+ * Copyright (C) 2012-2013 Filipe Coelho <falktx@falktx.com>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any purpose with
+ * or without fee is hereby granted, provided that the above copyright notice and this
+ * permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD
+ * TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN
+ * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+ * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
+ * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef DGL_IMAGE_KNOB_HPP_INCLUDED
+#define DGL_IMAGE_KNOB_HPP_INCLUDED
+
+#include "Image.hpp"
+#include "Widget.hpp"
+
+START_NAMESPACE_DGL
+
+// -----------------------------------------------------------------------
+
+class ImageKnob : public Widget
+{
+public:
+    enum Orientation {
+        Horizontal,
+        Vertical
+    };
+
+    class Callback
+    {
+    public:
+        virtual ~Callback() {}
+        virtual void imageKnobDragStarted(ImageKnob* imageKnob) = 0;
+        virtual void imageKnobDragFinished(ImageKnob* imageKnob) = 0;
+        virtual void imageKnobValueChanged(ImageKnob* imageKnob, float value) = 0;
+    };
+
+    ImageKnob(Window& parent, const Image& image, Orientation orientation = Vertical);
+    ImageKnob(Widget* widget, const Image& image, Orientation orientation = Vertical);
+    ImageKnob(const ImageKnob& imageKnob);
+
+    float getValue() const;
+
+    void setOrientation(Orientation orientation);
+    void setRange(float min, float max);
+    void setValue(float value, bool sendCallback = false);
+    void setRotationAngle(int angle);
+
+    void setCallback(Callback* callback);
+
+protected:
+     void onDisplay() override;
+     bool onMouse(int button, bool press, int x, int y) override;
+     bool onMotion(int x, int y) override;
+     void onReshape(int width, int height) override;
+     void onClose() override;
+
+private:
+    Image fImage;
+    float fMinimum;
+    float fMaximum;
+    float fValue;
+    Orientation fOrientation;
+
+    int  fRotationAngle;
+    bool fDragging;
+    int  fLastX;
+    int  fLastY;
+
+    Callback* fCallback;
+
+    bool fIsImgVertical;
+    int  fImgLayerSize;
+    int  fImgLayerCount;
+    Rectangle<int> fKnobArea;
+    GLuint fTextureId;
+};
+
+// -----------------------------------------------------------------------
+
+END_NAMESPACE_DGL
+
+#endif // DGL_IMAGE_KNOB_HPP_INCLUDED

dgl/ImageSlider.hpp

@@ -0,0 +1,85 @@
+/*
+ * DISTRHO Plugin Toolkit (DPT)
+ * Copyright (C) 2012-2013 Filipe Coelho <falktx@falktx.com>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any purpose with
+ * or without fee is hereby granted, provided that the above copyright notice and this
+ * permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD
+ * TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN
+ * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+ * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
+ * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef DGL_IMAGE_SLIDER_HPP_INCLUDED
+#define DGL_IMAGE_SLIDER_HPP_INCLUDED
+
+#include "Image.hpp"
+#include "Widget.hpp"
+
+START_NAMESPACE_DGL
+
+// -----------------------------------------------------------------------
+
+class ImageSlider : public Widget
+{
+public:
+    class Callback
+    {
+    public:
+        virtual ~Callback() {}
+        virtual void imageSliderDragStarted(ImageSlider* imageSlider) = 0;
+        virtual void imageSliderDragFinished(ImageSlider* imageSlider) = 0;
+        virtual void imageSliderValueChanged(ImageSlider* imageSlider, float value) = 0;
+    };
+
+    ImageSlider(Window& parent, const Image& image);
+    ImageSlider(Widget* widget, const Image& image);
+    ImageSlider(const ImageSlider& imageSlider);
+
+    float getValue() const;
+
+    void setStartPos(const Point<int>& startPos);
+    void setStartPos(int x, int y);
+    void setEndPos(const Point<int>& endPos);
+    void setEndPos(int x, int y);
+
+    void setRange(float min, float max);
+    void setValue(float value, bool sendCallback = false);
+    void setIsSwitch(bool yesNo);
+
+    void setCallback(Callback* callback);
+
+protected:
+     void onDisplay() override;
+     bool onMouse(int button, bool press, int x, int y) override;
+     bool onMotion(int x, int y) override;
+
+private:
+    Image fImage;
+    float fMinimum;
+    float fMaximum;
+    float fValue;
+
+    bool fIsSwitch;
+    bool fDragging;
+    int  fStartedX;
+    int  fStartedY;
+
+    Callback* fCallback;
+
+    Point<int> fStartPos;
+    Point<int> fEndPos;
+    Rectangle<int> fSliderArea;
+
+    void _recheckArea();
+};
+
+// -----------------------------------------------------------------------
+
+END_NAMESPACE_DGL
+
+#endif // DGL_IMAGE_SLIDER_HPP_INCLUDED

dgl/Makefile

@@ -0,0 +1,67 @@
+#!/usr/bin/make -f
+# Makefile for dgl #
+# ---------------- #
+# Created by falkTX
+#
+
+include Makefile.mk
+
+# --------------------------------------------------------------
+
+BUILD_C_FLAGS   += $(DGL_FLAGS) -I.
+BUILD_CXX_FLAGS += $(DGL_FLAGS) -I.
+LINK_FLAGS      += $(DGL_LIBS)
+
+# --------------------------------------------------------------
+
+OBJS = \
+	src/App.cpp.o \
+	src/Base.cpp.o \
+	src/Image.cpp.o \
+	src/ImageAboutWindow.cpp.o \
+	src/ImageButton.cpp.o \
+	src/ImageKnob.cpp.o \
+	src/ImageSlider.cpp.o \
+	src/Geometry.cpp.o \
+	src/Widget.cpp.o \
+	src/Window.cpp.o
+
+ifeq ($(MACOS),true)
+OBJS += src/pugl/pugl_osx_extended.m.o
+endif
+
+TARGET = ../libdgl.a
+
+# --------------------------------------------------------------
+
+all: $(TARGET)
+
+# --------------------------------------------------------------
+
+../libdgl.a: $(OBJS)
+	$(RM) $@
+	$(AR) crs $@ $^
+
+../libdgl.dll: $(OBJS)
+	$(CXX) $^ -shared $(LINK_FLAGS) -o $@
+
+../libdgl.dylib: $(OBJS)
+	$(CXX) $^ -dynamiclib $(LINK_FLAGS) -o $@
+
+../libdgl.so: $(OBJS)
+	$(CXX) $^ -shared $(LINK_FLAGS) -o $@
+
+# --------------------------------------------------------------
+
+%.cpp.o: %.cpp
+	$(CXX) $< $(BUILD_CXX_FLAGS) -c -o $@
+
+# --------------------------------------------------------------
+
+clean:
+	$(RM) src/*.o src/pugl/*.o ../libdgl.*
+
+debug:
+	$(MAKE) DEBUG=true
+
+# --------------------------------------------------------------

dgl/Makefile.mk

@@ -0,0 +1,79 @@
+#!/usr/bin/make -f
+# Makefile for dgl #
+# ---------------- #
+# Created by falkTX
+#
+
+AR  ?= ar
+RM  ?= rm -f
+
+CC  ?= gcc
+CXX ?= g++
+
+# --------------------------------------------------------------
+# Fallback to Linux if no other OS defined
+
+ifneq ($(MACOS),true)
+ifneq ($(WIN32),true)
+LINUX=true
+endif
+endif
+
+# --------------------------------------------------------------
+# Common build and link flags
+
+BASE_FLAGS = -Wall -Wextra -fPIC -DPIC -pipe -DREAL_BUILD
+BASE_OPTS  = -O3 -ffast-math -mtune=generic -msse -msse2 -mfpmath=sse
+
+ifeq ($(RASPPI),true)
+# Raspberry-Pi optimization flags
+BASE_OPTS  = -O3 -ffast-math -march=armv6 -mfpu=vfp -mfloat-abi=hard
+endif
+
+ifeq ($(DEBUG),true)
+BASE_FLAGS += -DDEBUG -O0 -g
+else
+BASE_FLAGS += -DNDEBUG $(BASE_OPTS) -fvisibility=hidden
+CXXFLAGS   += -fvisibility-inlines-hidden
+LINK_OPTS  += -Wl,--strip-all
+endif
+
+BUILD_C_FLAGS   = $(BASE_FLAGS) -std=gnu99 $(CFLAGS)
+BUILD_CXX_FLAGS = $(BASE_FLAGS) -std=gnu++0x $(CXXFLAGS)
+LINK_FLAGS      = $(LINK_OPTS) -Wl,--no-undefined $(LDFLAGS)
+
+ifeq ($(MACOS),true)
+# Get rid of most options for old gcc4.2
+BUILD_CXX_FLAGS = $(BASE_FLAGS) $(CXXFLAGS)
+LINK_FLAGS      = $(LDFLAGS)
+endif
+
+# --------------------------------------------------------------
+# Check for required libs
+
+ifeq ($(LINUX),true)
+ifneq ($(shell pkg-config --exists gl && echo true),true)
+$(error OpenGL missing, cannot continue)
+endif
+ifneq ($(shell pkg-config --exists x11 && echo true),true)
+$(error X11 missing, cannot continue)
+endif
+endif
+
+# --------------------------------------------------------------
+# Set libs stuff
+
+ifeq ($(LINUX),true)
+DGL_FLAGS = $(shell pkg-config --cflags gl x11)
+DGL_LIBS  = $(shell pkg-config --libs gl x11)
+endif
+
+ifeq ($(MACOS),true)
+DGL_LIBS  = -framework OpenGL -framework Cocoa
+endif
+
+ifeq ($(WIN32),true)
+DGL_LIBS  = -lopengl32 -lgdi32
+endif
+
+# --------------------------------------------------------------

dgl/StandaloneWindow.hpp

@@ -0,0 +1,79 @@
+/*
+ * DISTRHO Plugin Toolkit (DPT)
+ * Copyright (C) 2012-2013 Filipe Coelho <falktx@falktx.com>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any purpose with
+ * or without fee is hereby granted, provided that the above copyright notice and this
+ * permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD
+ * TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN
+ * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+ * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
+ * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef DGL_STANDALONE_WINDOW_HPP_INCLUDED
+#define DGL_STANDALONE_WINDOW_HPP_INCLUDED
+
+#include "App.hpp"
+#include "Window.hpp"
+
+START_NAMESPACE_DGL
+
+// -----------------------------------------------------------------------
+
+class StandaloneWindow
+{
+public:
+    StandaloneWindow()
+        : fApp(),
+          fWindow(fApp)
+    {
+    }
+
+    App& getApp() noexcept
+    {
+        return fApp;
+    }
+
+    Window& getWindow() noexcept
+    {
+        return fWindow;
+    }
+
+    void exec()
+    {
+        fWindow.show();
+        fApp.exec();
+    }
+
+    // -------------------------------------------------------------------
+    // helpers
+
+    void setResizable(bool yesNo)
+    {
+        fWindow.setResizable(yesNo);
+    }
+
+    void setSize(unsigned int width, unsigned int height)
+    {
+        fWindow.setSize(width, height);
+    }
+
+    void setTitle(const char* title)
+    {
+        fWindow.setTitle(title);
+    }
+
+private:
+    App fApp;
+    Window fWindow;
+};
+
+// -----------------------------------------------------------------------
+
+END_NAMESPACE_DGL
+
+#endif // DGL_STANDALONE_WINDOW_HPP_INCLUDED

dgl/Widget.hpp

@@ -0,0 +1,100 @@
+/*
+ * DISTRHO Plugin Toolkit (DPT)
+ * Copyright (C) 2012-2013 Filipe Coelho <falktx@falktx.com>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any purpose with
+ * or without fee is hereby granted, provided that the above copyright notice and this
+ * permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD
+ * TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN
+ * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+ * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
+ * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef DGL_WIDGET_HPP_INCLUDED
+#define DGL_WIDGET_HPP_INCLUDED
+
+#include "Geometry.hpp"
+
+#ifdef PROPER_CPP11_SUPPORT
+# include <cstdint>
+#else
+# include <stdint.h>
+#endif
+
+START_NAMESPACE_DGL
+
+// -----------------------------------------------------------------------
+
+class App;
+class Window;
+
+class Widget
+{
+public:
+    Widget(Window& parent);
+    virtual ~Widget();
+
+    bool isVisible() const noexcept;
+    void setVisible(bool yesNo);
+
+    void show();
+    void hide();
+
+    int getX() const noexcept;
+    int getY() const noexcept;
+    const Point<int>& getPos() const noexcept;
+
+    void setX(int x);
+    void setY(int y);
+    void setPos(int x, int y);
+    void setPos(const Point<int>& pos);
+
+    void move(int x, int y);
+    void move(const Point<int>& pos);
+
+    int getWidth() const noexcept;
+    int getHeight() const noexcept;
+    const Size<int>& getSize() const noexcept;
+
+    void setWidth(int width);
+    void setHeight(int height);
+    void setSize(int width, int height);
+    void setSize(const Size<int>& size);
+
+    const Rectangle<int>& getArea() const noexcept;
+
+    uint32_t getEventTimestamp();
+    int getModifiers();
+
+    App& getParentApp() const noexcept;
+    Window& getParentWindow() const noexcept;
+
+    void repaint();
+
+protected:
+    virtual void onDisplay() = 0;
+    virtual bool onKeyboard(bool press, uint32_t key);
+    virtual bool onMouse(int button, bool press, int x, int y);
+    virtual bool onMotion(int x, int y);
+    virtual bool onScroll(float dx, float dy);
+    virtual bool onSpecial(bool press, Key key);
+    virtual void onReshape(int width, int height);
+    virtual void onClose();
+
+private:
+    Window& fParent;
+    bool    fVisible;
+    Rectangle<int> fArea;
+
+    friend class Window;
+};
+
+// -----------------------------------------------------------------------
+
+END_NAMESPACE_DGL
+
+#endif // DGL_WIDGET_HPP_INCLUDED

dgl/Window.hpp

@@ -0,0 +1,85 @@
+/*
+ * DISTRHO Plugin Toolkit (DPT)
+ * Copyright (C) 2012-2013 Filipe Coelho <falktx@falktx.com>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any purpose with
+ * or without fee is hereby granted, provided that the above copyright notice and this
+ * permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD
+ * TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN
+ * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+ * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
+ * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef DGL_WINDOW_HPP_INCLUDED
+#define DGL_WINDOW_HPP_INCLUDED
+
+#include "Geometry.hpp"
+
+#ifdef PROPER_CPP11_SUPPORT
+# include <cstdint>
+#else
+# include <stdint.h>
+#endif
+
+START_NAMESPACE_DGL
+
+// -----------------------------------------------------------------------
+
+class App;
+class Widget;
+
+class Window
+{
+public:
+    Window(App& app);
+    Window(App& app, Window& parent);
+    Window(App& app, intptr_t parentId);
+    virtual ~Window();
+
+    void show();
+    void hide();
+    void close();
+    void exec(bool lockWait = false);
+
+    void focus();
+    void idle();
+    void repaint();
+
+    bool isVisible() const noexcept;
+    void setVisible(bool yesNo);
+
+    bool isResizable() const noexcept;
+    void setResizable(bool yesNo);
+
+#ifndef DGL_OS_MAC
+    int getWidth() const noexcept;
+    int getHeight() const noexcept;
+    Size<int> getSize() const noexcept;
+#endif
+    void setSize(unsigned int width, unsigned int height);
+
+    void setTitle(const char* title);
+
+    App&     getApp() const noexcept;
+    uint32_t getEventTimestamp() const;
+    int      getModifiers() const;
+    intptr_t getWindowId() const;
+
+private:
+    class PrivateData;
+    PrivateData* const pData;
+    friend class Widget;
+
+    void addWidget(Widget* const widget);
+    void removeWidget(Widget* const widget);
+};
+
+// -----------------------------------------------------------------------
+
+END_NAMESPACE_DGL
+
+#endif // DGL_WINDOW_HPP_INCLUDED

dgl/src/App.cpp

@@ -0,0 +1,111 @@
+/*
+ * DISTRHO Plugin Toolkit (DPT)
+ * Copyright (C) 2012-2013 Filipe Coelho <falktx@falktx.com>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any purpose with
+ * or without fee is hereby granted, provided that the above copyright notice and this
+ * permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD
+ * TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN
+ * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+ * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
+ * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include "../App.hpp"
+#include "../Window.hpp"
+
+#include <list>
+
+START_NAMESPACE_DGL
+
+// -----------------------------------------------------------------------
+
+struct App::PrivateData {
+    bool     doLoop;
+    unsigned visibleWindows;
+    std::list<Window*> windows;
+
+    PrivateData()
+        : doLoop(false),
+          visibleWindows(0) {}
+};
+
+// -----------------------------------------------------------------------
+
+App::App()
+    : pData(new PrivateData())
+{
+}
+
+App::~App()
+{
+    pData->windows.clear();
+    delete pData;
+}
+
+void App::idle()
+{
+    for (std::list<Window*>::iterator it = pData->windows.begin(); it != pData->windows.end(); ++it)
+    {
+        Window* const window(*it);
+        window->idle();
+    }
+}
+
+void App::exec()
+{
+    while (pData->doLoop)
+    {
+        idle();
+        msleep(10);
+    }
+}
+
+void App::quit()
+{
+    pData->doLoop = false;
+
+    for (std::list<Window*>::reverse_iterator rit = pData->windows.rbegin(); rit != pData->windows.rend(); ++rit)
+    {
+        Window* const window(*rit);
+        window->close();
+    }
+}
+
+bool App::isQuiting() const
+{
+    return !pData->doLoop;
+}
+
+// -----------------------------------------------------------------------
+
+void App::addWindow(Window* const window)
+{
+    if (window != nullptr)
+        pData->windows.push_back(window);
+}
+
+void App::removeWindow(Window* const window)
+{
+    if (window != nullptr)
+        pData->windows.remove(window);
+}
+
+void App::oneShown()
+{
+    if (++pData->visibleWindows == 1)
+        pData->doLoop = true;
+}
+
+void App::oneHidden()
+{
+    if (--pData->visibleWindows == 0)
+        pData->doLoop = false;
+}
+
+// -----------------------------------------------------------------------
+
+END_NAMESPACE_DGL

dgl/src/Base.cpp

@@ -0,0 +1,49 @@
+/*
+ * DISTRHO Plugin Toolkit (DPT)
+ * Copyright (C) 2012-2013 Filipe Coelho <falktx@falktx.com>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any purpose with
+ * or without fee is hereby granted, provided that the above copyright notice and this
+ * permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD
+ * TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN
+ * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+ * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
+ * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include "../Base.hpp"
+
+#if DGL_OS_WINDOWS
+# include <windows.h>
+#else
+# include <unistd.h>
+#endif
+
+START_NAMESPACE_DGL
+
+// -----------------------------------------------------------------------
+
+void sleep(unsigned int secs)
+{
+#ifdef DGL_OS_WINDOWS
+    ::Sleep(secs * 1000);
+#else
+    ::sleep(secs);
+#endif
+}
+
+void msleep(unsigned int msecs)
+{
+#ifdef DGL_OS_WINDOWS
+    ::Sleep(msecs);
+#else
+    ::usleep(msecs * 1000);
+#endif
+}
+
+// -----------------------------------------------------------------------
+
+END_NAMESPACE_DGL

dgl/src/Geometry.cpp

@@ -0,0 +1,416 @@
+/*
+ * DISTRHO Plugin Toolkit (DPT)
+ * Copyright (C) 2012-2013 Filipe Coelho <falktx@falktx.com>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any purpose with
+ * or without fee is hereby granted, provided that the above copyright notice and this
+ * permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD
+ * TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN
+ * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+ * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
+ * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include "../Geometry.hpp"
+
+START_NAMESPACE_DGL
+
+// -----------------------------------------------------------------------
+// Point
+
+template<typename T>
+Point<T>::Point() noexcept
+    : fX(0),
+      fY(0)
+{
+}
+
+template<typename T>
+Point<T>::Point(T x, T y) noexcept
+    : fX(x),
+      fY(y)
+{
+}
+
+template<typename T>
+Point<T>::Point(const Point& pos) noexcept
+    : fX(pos.fX),
+      fY(pos.fY)
+{
+}
+
+template<typename T>
+T Point<T>::getX() const noexcept
+{
+    return fX;
+}
+
+template<typename T>
+T Point<T>::getY() const noexcept
+{
+    return fY;
+}
+
+template<typename T>
+void Point<T>::setX(T x) noexcept
+{
+    fX = x;
+}
+
+template<typename T>
+void Point<T>::setY(T y) noexcept
+{
+    fY = y;
+}
+
+template<typename T>
+void Point<T>::move(T x, T y) noexcept
+{
+    fX += x;
+    fY += y;
+}
+
+template<typename T>
+void Point<T>::move(const Point& pos) noexcept
+{
+    fX += pos.fX;
+    fY += pos.fY;
+}
+
+template<typename T>
+Point<T>& Point<T>::operator=(const Point<T>& pos) noexcept
+{
+    fX = pos.fX;
+    fY = pos.fY;
+    return *this;
+}
+
+template<typename T>
+Point<T>& Point<T>::operator+=(const Point<T>& pos) noexcept
+{
+    fX += pos.fX;
+    fY += pos.fY;
+    return *this;
+}
+
+template<typename T>
+Point<T>& Point<T>::operator-=(const Point<T>& pos) noexcept
+{
+    fX -= pos.fX;
+    fY -= pos.fY;
+    return *this;
+}
+
+template<typename T>
+bool Point<T>::operator==(const Point<T>& pos) const noexcept
+{
+    return (fX == pos.fX && fY== pos.fY);
+}
+
+template<typename T>
+bool Point<T>::operator!=(const Point<T>& pos) const noexcept
+{
+    return !operator==(pos);
+}
+
+// -----------------------------------------------------------------------
+// Size
+
+template<typename T>
+Size<T>::Size() noexcept
+    : fWidth(0),
+      fHeight(0)
+{
+}
+
+template<typename T>
+Size<T>::Size(T width, T height) noexcept
+    : fWidth(width),
+      fHeight(height)
+{
+}
+
+template<typename T>
+Size<T>::Size(const Size<T>& size) noexcept
+    : fWidth(size.fWidth),
+      fHeight(size.fHeight)
+{
+}
+
+template<typename T>
+T Size<T>::getWidth() const noexcept
+{
+    return fWidth;
+}
+
+template<typename T>
+T Size<T>::getHeight() const noexcept
+{
+    return fHeight;
+}
+
+template<typename T>
+void Size<T>::setWidth(T width) noexcept
+{
+    fWidth = width;
+}
+
+template<typename T>
+void Size<T>::setHeight(T height) noexcept
+{
+    fHeight = height;
+}
+
+template<typename T>
+Size<T>& Size<T>::operator=(const Size<T>& size) noexcept
+{
+    fWidth  = size.fWidth;
+    fHeight = size.fHeight;
+    return *this;
+}
+
+template<typename T>
+Size<T>& Size<T>::operator+=(const Size<T>& size) noexcept
+{
+    fWidth  += size.fWidth;
+    fHeight += size.fHeight;
+    return *this;
+}
+
+template<typename T>
+Size<T>& Size<T>::operator-=(const Size<T>& size) noexcept
+{
+    fWidth  -= size.fWidth;
+    fHeight -= size.fHeight;
+    return *this;
+}
+
+template<typename T>
+Size<T>& Size<T>::operator*=(T m) noexcept
+{
+    fWidth  *= m;
+    fHeight *= m;
+    return *this;
+}
+
+template<typename T>
+Size<T>& Size<T>::operator/=(T d) noexcept
+{
+    fWidth  /= d;
+    fHeight /= d;
+    return *this;
+}
+
+template<typename T>
+bool Size<T>::operator==(const Size<T>& size) const noexcept
+{
+    return (fWidth == size.fWidth && fHeight == size.fHeight);
+}
+
+template<typename T>
+bool Size<T>::operator!=(const Size<T>& size) const noexcept
+{
+    return !operator==(size);
+}
+
+// -----------------------------------------------------------------------
+// Rectangle
+
+template<typename T>
+Rectangle<T>::Rectangle() noexcept
+    : fPos(0, 0),
+      fSize(0, 0)
+{
+}
+
+template<typename T>
+Rectangle<T>::Rectangle(T x, T y, T width, T height) noexcept
+    : fPos(x, y),
+      fSize(width, height)
+{
+}
+
+template<typename T>
+Rectangle<T>::Rectangle(T x, T y, const Size<T>& size) noexcept
+    : fPos(x, y),
+      fSize(size)
+{
+}
+
+template<typename T>
+Rectangle<T>::Rectangle(const Point<T>& pos, T width, T height) noexcept
+    : fPos(pos),
+      fSize(width, height)
+{
+}
+
+template<typename T>
+Rectangle<T>::Rectangle(const Point<T>& pos, const Size<T>& size) noexcept
+    : fPos(pos),
+      fSize(size)
+{
+}
+
+template<typename T>
+Rectangle<T>::Rectangle(const Rectangle<T>& rect) noexcept
+    : fPos(rect.fPos),
+      fSize(rect.fSize)
+{
+}
+
+template<typename T>
+T Rectangle<T>::getX() const noexcept
+{
+    return fPos.fX;
+}
+
+template<typename T>
+T Rectangle<T>::getY() const noexcept
+{
+    return fPos.fY;
+}
+
+template<typename T>
+T Rectangle<T>::getWidth() const noexcept
+{
+    return fSize.fWidth;
+}
+
+template<typename T>
+T Rectangle<T>::getHeight() const noexcept
+{
+    return fSize.fHeight;
+}
+
+template<typename T>
+const Point<T>& Rectangle<T>::getPos() const noexcept
+{
+    return fPos;
+}
+
+template<typename T>
+const Size<T>& Rectangle<T>::getSize() const noexcept
+{
+    return fSize;
+}
+
+template<typename T>
+bool Rectangle<T>::contains(T x, T y) const noexcept
+{
+    return (x >= fPos.fX && y >= fPos.fY && x <= fPos.fX+fSize.fWidth && y <= fPos.fY+fSize.fHeight);
+}
+
+template<typename T>
+bool Rectangle<T>::contains(const Point<T>& pos) const noexcept
+{
+    return contains(pos.fX, pos.fY);
+}
+
+template<typename T>
+bool Rectangle<T>::containsX(T x) const noexcept
+{
+    return (x >= fPos.fX && x <= fPos.fX + fSize.fWidth);
+}
+
+template<typename T>
+bool Rectangle<T>::containsY(T y) const noexcept
+{
+    return (y >= fPos.fY && y <= fPos.fY + fSize.fHeight);
+}
+
+template<typename T>
+void Rectangle<T>::setX(T x) noexcept
+{
+    fPos.fX = x;
+}
+
+template<typename T>
+void Rectangle<T>::setY(T y) noexcept
+{
+    fPos.fY = y;
+}
+
+template<typename T>
+void Rectangle<T>::setPos(T x, T y) noexcept
+{
+    fPos.fX = x;
+    fPos.fY = y;
+}
+
+template<typename T>
+void Rectangle<T>::setPos(const Point<T>& pos) noexcept
+{
+    fPos = pos;
+}
+
+template<typename T>
+void Rectangle<T>::move(T x, T y) noexcept
+{
+    fPos.fX += x;
+    fPos.fY += y;
+}
+
+template<typename T>
+void Rectangle<T>::move(const Point<T>& pos) noexcept
+{
+    fPos += pos;
+}
+
+template<typename T>
+void Rectangle<T>::setWidth(T width) noexcept
+{
+    fSize.fWidth = width;
+}
+
+template<typename T>
+void Rectangle<T>::setHeight(T height) noexcept
+{
+    fSize.fHeight = height;
+}
+
+template<typename T>
+void Rectangle<T>::setSize(T width, T height) noexcept
+{
+    fSize.fWidth  = width;
+    fSize.fHeight = height;
+}
+
+template<typename T>
+void Rectangle<T>::setSize(const Size<T>& size) noexcept
+{
+    fSize = size;
+}
+
+template<typename T>
+Rectangle<T>& Rectangle<T>::operator=(const Rectangle<T>& rect) noexcept
+{
+    fPos  = rect.fPos;
+    fSize = rect.fSize;
+    return *this;
+}
+
+// -----------------------------------------------------------------------
+// Possible template data types
+
+template class Point<int>;
+template class Point<long>;
+template class Point<float>;
+template class Point<double>;
+
+template class Size<int>;
+template class Size<long>;
+template class Size<float>;
+template class Size<double>;
+
+template class Rectangle<int>;
+template class Rectangle<long>;
+template class Rectangle<float>;
+template class Rectangle<double>;
+
+// -----------------------------------------------------------------------
+
+END_NAMESPACE_DGL
+

dgl/src/Image.cpp

@@ -0,0 +1,145 @@
+/*
+ * DISTRHO Plugin Toolkit (DPT)
+ * Copyright (C) 2012-2013 Filipe Coelho <falktx@falktx.com>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any purpose with
+ * or without fee is hereby granted, provided that the above copyright notice and this
+ * permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD
+ * TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN
+ * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+ * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
+ * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include "../Image.hpp"
+
+START_NAMESPACE_DGL
+
+// -----------------------------------------------------------------------
+
+Image::Image() noexcept
+    : fRawData(nullptr),
+      fSize(0, 0),
+      fFormat(0),
+      fType(0)
+{
+}
+
+Image::Image(const char* rawData, int width, int height, GLenum format, GLenum type) noexcept
+    : fRawData(rawData),
+      fSize(width, height),
+      fFormat(format),
+      fType(type)
+{
+}
+
+Image::Image(const char* rawData, const Size<int>& size, GLenum format, GLenum type) noexcept
+    : fRawData(rawData),
+      fSize(size),
+      fFormat(format),
+      fType(type)
+{
+}
+
+Image::Image(const Image& image) noexcept
+    : fRawData(image.fRawData),
+      fSize(image.fSize),
+      fFormat(image.fFormat),
+      fType(image.fType)
+{
+}
+
+void Image::loadFromMemory(const char* rawData, int width, int height, GLenum format, GLenum type) noexcept
+{
+    loadFromMemory(rawData, Size<int>(width, height), format, type);
+}
+
+void Image::loadFromMemory(const char* rawData, const Size<int>& size, GLenum format, GLenum type) noexcept
+{
+    fRawData = rawData;
+    fSize    = size;
+    fFormat  = format;
+    fType    = type;
+}
+
+bool Image::isValid() const noexcept
+{
+    return (fRawData != nullptr && getWidth() > 0 && getHeight() > 0);
+}
+
+int Image::getWidth() const noexcept
+{
+    return fSize.getWidth();
+}
+
+int Image::getHeight() const noexcept
+{
+    return fSize.getHeight();
+}
+
+const Size<int>& Image::getSize() const noexcept
+{
+    return fSize;
+}
+
+const char* Image::getRawData() const noexcept
+{
+    return fRawData;
+}
+
+GLenum Image::getFormat() const noexcept
+{
+    return fFormat;
+}
+
+GLenum Image::getType() const noexcept
+{
+    return fType;
+}
+
+void Image::draw() const
+{
+    draw(0, 0);
+}
+
+void Image::draw(int x, int y) const
+{
+    if (! isValid())
+        return;
+
+    glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
+    glPixelStorei(GL_PACK_ALIGNMENT, 1);
+    glRasterPos2i(x, fSize.getHeight()+y);
+    glDrawPixels(fSize.getWidth(), fSize.getHeight(), fFormat, fType, fRawData);
+}
+
+void Image::draw(const Point<int>& pos) const
+{
+    draw(pos.getX(), pos.getY());
+}
+
+Image& Image::operator=(const Image& image) noexcept
+{
+    fRawData = image.fRawData;
+    fSize    = image.fSize;
+    fFormat  = image.fFormat;
+    fType    = image.fType;
+    return *this;
+}
+
+bool Image::operator==(const Image& image) const noexcept
+{
+    return (fRawData == image.fRawData);
+}
+
+bool Image::operator!=(const Image& image) const noexcept
+{
+    return (fRawData != image.fRawData);
+}
+
+// -----------------------------------------------------------------------
+
+END_NAMESPACE_DGL

dgl/src/ImageAboutWindow.cpp

@@ -0,0 +1,83 @@
+/*
+ * DISTRHO Plugin Toolkit (DPT)
+ * Copyright (C) 2012-2013 Filipe Coelho <falktx@falktx.com>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any purpose with
+ * or without fee is hereby granted, provided that the above copyright notice and this
+ * permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD
+ * TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN
+ * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+ * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
+ * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include "../ImageAboutWindow.hpp"
+
+// FIXME: 32bit hack
+#if ! (defined (__LP64__) || defined (_LP64) || defined(WIN64) || defined(_WIN64) || defined(__WIN64__))
+# define PAD_SIZE +1
+#else
+# define PAD_SIZE
+#endif
+
+START_NAMESPACE_DGL
+
+// -----------------------------------------------------------------------
+
+ImageAboutWindow::ImageAboutWindow(App& app, Window& parent, const Image& image)
+    : Window(app, parent),
+      Widget((Window&)*this),
+      fImgBackground(image)
+{
+    Window::setSize(image.getWidth(), image.getHeight() PAD_SIZE);
+    Window::setTitle("About");
+}
+
+ImageAboutWindow::ImageAboutWindow(Widget* widget, const Image& image)
+    : Window(widget->getParentApp(), widget->getParentWindow()),
+      Widget((Window&)*this),
+      fImgBackground(image)
+{
+    Window::setSize(image.getWidth(), image.getHeight() PAD_SIZE);
+    Window::setTitle("About");
+}
+
+void ImageAboutWindow::setImage(const Image& image)
+{
+    fImgBackground = image;
+    Window::setSize(image.getWidth(), image.getHeight() PAD_SIZE);
+}
+
+void ImageAboutWindow::onDisplay()
+{
+    fImgBackground.draw();
+}
+
+bool ImageAboutWindow::onMouse(int, bool press, int, int)
+{
+    if (press)
+    {
+        Window::close();
+        return true;
+    }
+
+    return false;
+}
+
+bool ImageAboutWindow::onKeyboard(bool press, uint32_t key)
+{
+    if (press && key == CHAR_ESCAPE)
+    {
+        Window::close();
+        return true;
+    }
+
+    return false;
+}
+
+// -----------------------------------------------------------------------
+
+END_NAMESPACE_DGL

dgl/src/ImageButton.cpp

@@ -0,0 +1,173 @@
+/*
+ * DISTRHO Plugin Toolkit (DPT)
+ * Copyright (C) 2012-2013 Filipe Coelho <falktx@falktx.com>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any purpose with
+ * or without fee is hereby granted, provided that the above copyright notice and this
+ * permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD
+ * TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN
+ * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+ * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
+ * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include "../ImageButton.hpp"
+
+#include <cassert>
+
+START_NAMESPACE_DGL
+
+// -----------------------------------------------------------------------
+
+ImageButton::ImageButton(Window& parent, const Image& image)
+    : Widget(parent),
+      fImageNormal(image),
+      fImageHover(image),
+      fImageDown(image),
+      fCurImage(&fImageNormal),
+      fCurButton(-1),
+      fCallback(nullptr)
+{
+}
+
+ImageButton::ImageButton(Widget* widget, const Image& image)
+    : Widget(widget->getParentWindow()),
+      fImageNormal(image),
+      fImageHover(image),
+      fImageDown(image),
+      fCurImage(&fImageNormal),
+      fCurButton(-1),
+      fCallback(nullptr)
+{
+}
+
+ImageButton::ImageButton(Window& parent, const Image& imageNormal, const Image& imageHover, const Image& imageDown)
+    : Widget(parent),
+      fImageNormal(imageNormal),
+      fImageHover(imageHover),
+      fImageDown(imageDown),
+      fCurImage(&fImageNormal),
+      fCurButton(-1),
+      fCallback(nullptr)
+{
+    assert(fImageNormal.getSize() == fImageHover.getSize() && fImageHover.getSize() == fImageDown.getSize());
+
+    setSize(fCurImage->getSize());
+}
+
+ImageButton::ImageButton(Widget* widget, const Image& imageNormal, const Image& imageHover, const Image& imageDown)
+    : Widget(widget->getParentWindow()),
+      fImageNormal(imageNormal),
+      fImageHover(imageHover),
+      fImageDown(imageDown),
+      fCurImage(&fImageNormal),
+      fCurButton(-1),
+      fCallback(nullptr)
+{
+    assert(fImageNormal.getSize() == fImageHover.getSize() && fImageHover.getSize() == fImageDown.getSize());
+
+    setSize(fCurImage->getSize());
+}
+
+ImageButton::ImageButton(const ImageButton& imageButton)
+    : Widget(imageButton.getParentWindow()),
+      fImageNormal(imageButton.fImageNormal),
+      fImageHover(imageButton.fImageHover),
+      fImageDown(imageButton.fImageDown),
+      fCurImage(&fImageNormal),
+      fCurButton(-1),
+      fCallback(imageButton.fCallback)
+{
+    assert(fImageNormal.getSize() == fImageHover.getSize() && fImageHover.getSize() == fImageDown.getSize());
+
+    setSize(fCurImage->getSize());
+}
+
+void ImageButton::setCallback(Callback* callback)
+{
+    fCallback = callback;
+}
+
+void ImageButton::onDisplay()
+{
+    fCurImage->draw(getPos());
+}
+
+bool ImageButton::onMouse(int button, bool press, int x, int y)
+{
+    if (fCurButton != -1 && ! press)
+    {
+        if (fCurImage != &fImageNormal)
+        {
+            fCurImage = &fImageNormal;
+            repaint();
+        }
+
+        if (! getArea().contains(x, y))
+        {
+            fCurButton = -1;
+            return false;
+        }
+
+        if (fCallback != nullptr)
+            fCallback->imageButtonClicked(this, fCurButton);
+
+        //if (getArea().contains(x, y))
+        //{
+        //    fCurImage = &fImageHover;
+        //    repaint();
+        //}
+
+        fCurButton = -1;
+
+        return true;
+    }
+
+    if (press && getArea().contains(x, y))
+    {
+        if (fCurImage != &fImageDown)
+        {
+            fCurImage = &fImageDown;
+            repaint();
+        }
+
+        fCurButton = button;
+        return true;
+    }
+
+    return false;
+}
+
+bool ImageButton::onMotion(int x, int y)
+{
+    if (fCurButton != -1)
+        return true;
+
+    if (getArea().contains(x, y))
+    {
+        if (fCurImage != &fImageHover)
+        {
+            fCurImage = &fImageHover;
+            repaint();
+        }
+
+        return true;
+    }
+    else
+    {
+        if (fCurImage != &fImageNormal)
+        {
+            fCurImage = &fImageNormal;
+            repaint();
+        }
+
+        return false;
+    }
+}
+
+// -----------------------------------------------------------------------
+
+END_NAMESPACE_DGL

dgl/src/ImageKnob.cpp

@@ -0,0 +1,340 @@
+/*
+ * DISTRHO Plugin Toolkit (DPT)
+ * Copyright (C) 2012-2013 Filipe Coelho <falktx@falktx.com>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any purpose with
+ * or without fee is hereby granted, provided that the above copyright notice and this
+ * permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD
+ * TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN
+ * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+ * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
+ * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include "../ImageKnob.hpp"
+
+#include <cassert>
+#include <cstdio>
+
+START_NAMESPACE_DGL
+
+// -----------------------------------------------------------------------
+
+ImageKnob::ImageKnob(Window& parent, const Image& image, Orientation orientation)
+    : Widget(parent),
+      fImage(image),
+      fMinimum(0.0f),
+      fMaximum(1.0f),
+      fValue(0.5f),
+      fOrientation(orientation),
+      fRotationAngle(0),
+      fDragging(false),
+      fLastX(0),
+      fLastY(0),
+      fCallback(nullptr),
+      fIsImgVertical(image.getHeight() > image.getWidth()),
+      fImgLayerSize(fIsImgVertical ? image.getWidth() : image.getHeight()),
+      fImgLayerCount(fIsImgVertical ? image.getHeight()/fImgLayerSize : image.getWidth()/fImgLayerSize),
+      fKnobArea(0, 0, fImgLayerSize, fImgLayerSize),
+      fTextureId(0)
+{
+    setSize(fImgLayerSize, fImgLayerSize);
+}
+
+ImageKnob::ImageKnob(Widget* widget, const Image& image, Orientation orientation)
+    : Widget(widget->getParentWindow()),
+      fImage(image),
+      fMinimum(0.0f),
+      fMaximum(1.0f),
+      fValue(0.5f),
+      fOrientation(orientation),
+      fRotationAngle(0),
+      fDragging(false),
+      fLastX(0),
+      fLastY(0),
+      fCallback(nullptr),
+      fIsImgVertical(image.getHeight() > image.getWidth()),
+      fImgLayerSize(fIsImgVertical ? image.getWidth() : image.getHeight()),
+      fImgLayerCount(fIsImgVertical ? image.getHeight()/fImgLayerSize : image.getWidth()/fImgLayerSize),
+      fKnobArea(0, 0, fImgLayerSize, fImgLayerSize),
+      fTextureId(0)
+{
+    setSize(fImgLayerSize, fImgLayerSize);
+}
+
+ImageKnob::ImageKnob(const ImageKnob& imageKnob)
+    : Widget(imageKnob.getParentWindow()),
+      fImage(imageKnob.fImage),
+      fMinimum(imageKnob.fMinimum),
+      fMaximum(imageKnob.fMaximum),
+      fValue(imageKnob.fValue),
+      fOrientation(imageKnob.fOrientation),
+      fRotationAngle(imageKnob.fRotationAngle),
+      fDragging(false),
+      fLastX(0),
+      fLastY(0),
+      fCallback(imageKnob.fCallback),
+      fIsImgVertical(imageKnob.fIsImgVertical),
+      fImgLayerSize(imageKnob.fImgLayerSize),
+      fImgLayerCount(imageKnob.fImgLayerCount),
+      fKnobArea(imageKnob.fKnobArea),
+      fTextureId(0)
+{
+    setSize(fImgLayerSize, fImgLayerSize);
+
+    if (fRotationAngle != 0)
+    {
+        // force new texture creation
+        fRotationAngle = 0;
+        setRotationAngle(imageKnob.fRotationAngle);
+    }
+}
+
+float ImageKnob::getValue() const
+{
+    return fValue;
+}
+
+void ImageKnob::setOrientation(Orientation orientation)
+{
+    if (fOrientation == orientation)
+        return;
+
+    fOrientation = orientation;
+}
+
+void ImageKnob::setRange(float min, float max)
+{
+    if (fValue < min)
+    {
+        fValue = min;
+        repaint();
+
+        if (fCallback != nullptr)
+            fCallback->imageKnobValueChanged(this, fValue);
+    }
+    else if (fValue > max)
+    {
+        fValue = max;
+        repaint();
+
+        if (fCallback != nullptr)
+            fCallback->imageKnobValueChanged(this, fValue);
+    }
+
+    fMinimum = min;
+    fMaximum = max;
+}
+
+void ImageKnob::setValue(float value, bool sendCallback)
+{
+    if (fValue == value)
+        return;
+
+    fValue = value;
+    repaint();
+
+    if (sendCallback && fCallback != nullptr)
+        fCallback->imageKnobValueChanged(this, fValue);
+}
+
+void ImageKnob::setRotationAngle(int angle)
+{
+    if (fRotationAngle == angle)
+        return;
+
+    if (fRotationAngle != 0)
+    {
+        // delete old texture
+        glDeleteTextures(1, &fTextureId);
+        fTextureId = 0;
+    }
+
+    fRotationAngle = angle;
+
+    if (angle != 0)
+    {
+        glEnable(GL_TEXTURE_2D);
+        glGenTextures(1, &fTextureId);
+        glBindTexture(GL_TEXTURE_2D, fTextureId);
+
+        glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
+        glPixelStorei(GL_PACK_ALIGNMENT, 1);
+        glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, getWidth(), getHeight(), 0, fImage.getFormat(), fImage.getType(), fImage.getRawData());
+
+        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_BORDER);
+        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_BORDER);
+
+        float trans[] = { 0.0f, 0.0f, 0.0f, 0.0f };
+        glTexParameterfv(GL_TEXTURE_2D, GL_TEXTURE_BORDER_COLOR, trans);
+
+        glBindTexture(GL_TEXTURE_2D, 0);
+        glDisable(GL_TEXTURE_2D);
+    }
+}
+
+void ImageKnob::setCallback(Callback* callback)
+{
+    fCallback = callback;
+}
+
+void ImageKnob::onDisplay()
+{
+    const float normValue = (fValue - fMinimum) / (fMaximum - fMinimum);
+
+    if (fRotationAngle != 0)
+    {
+        glEnable(GL_TEXTURE_2D);
+        glBindTexture(GL_TEXTURE_2D, fTextureId);
+
+        glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
+        glPixelStorei(GL_PACK_ALIGNMENT, 1);
+        glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, getWidth(), getHeight(), 0, fImage.getFormat(), fImage.getType(), fImage.getRawData());
+
+        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_BORDER);
+        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_BORDER);
+
+        float trans[] = { 0.0f, 0.0f, 0.0f, 0.0f };
+        glTexParameterfv(GL_TEXTURE_2D, GL_TEXTURE_BORDER_COLOR, trans);
+
+        glPushMatrix();
+
+        const GLint w2 = getWidth()/2;
+        const GLint h2 = getHeight()/2;
+
+        glTranslatef(getX()+w2, getY()+h2, 0.0f);
+        glRotatef(normValue*fRotationAngle, 0.0f, 0.0f, 1.0f);
+
+        glBegin(GL_QUADS);
+          glTexCoord2f(0.0f, 1.0f);
+          glVertex2i(-w2, -h2);
+
+          glTexCoord2f(1.0f, 1.0f);
+          glVertex2i(getWidth()-w2, -h2);
+
+          glTexCoord2f(1.0f, 0.0f);
+          glVertex2i(getWidth()-w2, getHeight()-h2);
+
+          glTexCoord2f(0.0f, 0.0f);
+          glVertex2i(-w2, getHeight()-h2);
+        glEnd();
+
+        glPopMatrix();
+
+        glBindTexture(GL_TEXTURE_2D, 0);
+        glDisable(GL_TEXTURE_2D);
+    }
+    else
+    {
+        const int layerDataSize   = fImgLayerSize * fImgLayerSize * ((fImage.getFormat() == GL_BGRA || fImage.getFormat() == GL_RGBA) ? 4 : 3);
+        const int imageDataSize   = layerDataSize * fImgLayerCount;
+        const int imageDataOffset = imageDataSize - layerDataSize - (layerDataSize * int(normValue * float(fImgLayerCount-1)));
+
+        glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
+        glPixelStorei(GL_PACK_ALIGNMENT, 1);
+        glRasterPos2i(getX(), getY()+getHeight());
+        glDrawPixels(fImgLayerSize, fImgLayerSize, fImage.getFormat(), fImage.getType(), fImage.getRawData() + imageDataOffset);
+    }
+}
+
+bool ImageKnob::onMouse(int button, bool press, int x, int y)
+{
+    if (button != 1)
+        return false;
+
+    if (press)
+    {
+        if (! getArea().contains(x, y))
+            return false;
+
+        fDragging = true;
+        fLastX = x;
+        fLastY = y;
+
+        if (fCallback != nullptr)
+            fCallback->imageKnobDragStarted(this);
+
+        return true;
+    }
+    else if (fDragging)
+    {
+        if (fCallback != nullptr)
+            fCallback->imageKnobDragFinished(this);
+
+        fDragging = false;
+        return true;
+    }
+
+    return false;
+}
+
+bool ImageKnob::onMotion(int x, int y)
+{
+    if (! fDragging)
+        return false;
+
+    if (fOrientation == ImageKnob::Horizontal)
+    {
+        int movX = x - fLastX;
+
+        if (movX != 0)
+        {
+            float d     = (getModifiers() & MODIFIER_SHIFT) ? 2000.0f : 200.0f;
+            float value = fValue + (float(fMaximum - fMinimum) / d * float(movX));
+
+            if (value < fMinimum)
+                value = fMinimum;
+            else if (value > fMaximum)
+                value = fMaximum;
+
+            setValue(value, true);
+        }
+    }
+    else if (fOrientation == ImageKnob::Vertical)
+    {
+        int movY = fLastY - y;
+
+        if (movY != 0)
+        {
+            float d     = (getModifiers() & MODIFIER_SHIFT) ? 2000.0f : 200.0f;
+            float value = fValue + (float(fMaximum - fMinimum) / d * float(movY));
+
+            if (value < fMinimum)
+                value = fMinimum;
+            else if (value > fMaximum)
+                value = fMaximum;
+
+            setValue(value, true);
+        }
+    }
+
+    fLastX = x;
+    fLastY = y;
+
+    return true;
+}
+
+void ImageKnob::onReshape(int width, int height)
+{
+//     if (fRotationAngle != 0)
+//         glEnable(GL_TEXTURE_2D);
+
+    Widget::onReshape(width, height);
+}
+
+void ImageKnob::onClose()
+{
+    // delete old texture
+    setRotationAngle(0);
+}
+
+// -----------------------------------------------------------------------
+
+END_NAMESPACE_DGL

dgl/src/ImageSlider.cpp

@@ -0,0 +1,316 @@
+/*
+ * DISTRHO Plugin Toolkit (DPT)
+ * Copyright (C) 2012-2013 Filipe Coelho <falktx@falktx.com>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any purpose with
+ * or without fee is hereby granted, provided that the above copyright notice and this
+ * permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD
+ * TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN
+ * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+ * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
+ * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include "../ImageSlider.hpp"
+
+START_NAMESPACE_DGL
+
+// -----------------------------------------------------------------------
+
+ImageSlider::ImageSlider(Window& parent, const Image& image)
+    : Widget(parent),
+      fImage(image),
+      fMinimum(0.0f),
+      fMaximum(1.0f),
+      fValue(0.5f),
+      fIsSwitch(false),
+      fDragging(false),
+      fStartedX(0),
+      fStartedY(0),
+      fCallback(nullptr)
+{
+    setSize(fImage.getSize());
+}
+
+ImageSlider::ImageSlider(Widget* widget, const Image& image)
+    : Widget(widget->getParentWindow()),
+      fImage(image),
+      fMinimum(0.0f),
+      fMaximum(1.0f),
+      fValue(0.5f),
+      fIsSwitch(false),
+      fDragging(false),
+      fStartedX(0),
+      fStartedY(0),
+      fCallback(nullptr)
+{
+    setSize(fImage.getSize());
+}
+
+ImageSlider::ImageSlider(const ImageSlider& imageSlider)
+    : Widget(imageSlider.getParentWindow()),
+      fImage(imageSlider.fImage),
+      fMinimum(imageSlider.fMinimum),
+      fMaximum(imageSlider.fMaximum),
+      fValue(imageSlider.fValue),
+      fIsSwitch(imageSlider.fIsSwitch),
+      fDragging(false),
+      fStartedX(0),
+      fStartedY(0),
+      fCallback(imageSlider.fCallback),
+      fStartPos(imageSlider.fStartPos),
+      fEndPos(imageSlider.fEndPos),
+      fSliderArea(imageSlider.fSliderArea)
+{
+    setSize(fImage.getSize());
+}
+
+float ImageSlider::getValue() const
+{
+    return fValue;
+}
+
+void ImageSlider::setStartPos(const Point<int>& startPos)
+{
+    fStartPos = startPos;
+    _recheckArea();
+}
+
+void ImageSlider::setStartPos(int x, int y)
+{
+    setStartPos(Point<int>(x, y));
+}
+
+void ImageSlider::setEndPos(const Point<int>& endPos)
+{
+    fEndPos = endPos;
+    _recheckArea();
+}
+
+void ImageSlider::setEndPos(int x, int y)
+{
+    setEndPos(Point<int>(x, y));
+}
+
+void ImageSlider::setRange(float min, float max)
+{
+    if (fValue < min)
+    {
+        fValue = min;
+        repaint();
+
+        if (fCallback != nullptr)
+            fCallback->imageSliderValueChanged(this, fValue);
+    }
+    else if (fValue > max)
+    {
+        fValue = max;
+        repaint();
+
+        if (fCallback != nullptr)
+            fCallback->imageSliderValueChanged(this, fValue);
+    }
+
+    fMinimum = min;
+    fMaximum = max;
+}
+
+void ImageSlider::setValue(float value, bool sendCallback)
+{
+    if (fValue == value)
+        return;
+
+    fValue = value;
+    repaint();
+
+    if (sendCallback && fCallback != nullptr)
+        fCallback->imageSliderValueChanged(this, fValue);
+}
+
+void ImageSlider::setIsSwitch(bool yesNo)
+{
+    if (fIsSwitch == yesNo)
+        return;
+
+    fIsSwitch = yesNo;
+    repaint();
+}
+
+void ImageSlider::setCallback(Callback* callback)
+{
+    fCallback = callback;
+}
+
+void ImageSlider::onDisplay()
+{
+#if 0 // DEBUG, paints slider area
+    glColor3f(0.4f, 0.5f, 0.1f);
+    glRecti(fSliderArea.getX(), fSliderArea.getY(), fSliderArea.getX()+fSliderArea.getWidth(), fSliderArea.getY()+fSliderArea.getHeight());
+#endif
+
+    float normValue = (fValue - fMinimum) / (fMaximum - fMinimum);
+
+    int x, y;
+
+    if (fStartPos.getX() == fEndPos.getX())
+    {
+        x = fStartPos.getX();
+        y = fEndPos.getY() - normValue*(fEndPos.getY()-fStartPos.getY());
+    }
+    else if (fStartPos.getY() == fEndPos.getY())
+    {
+        x = fEndPos.getX() - normValue*(fEndPos.getX()-fStartPos.getX());
+        y = fStartPos.getY();
+    }
+    else
+        return;
+
+    fImage.draw(x, y);
+}
+
+bool ImageSlider::onMouse(int button, bool press, int x, int y)
+{
+    if (button != 1)
+        return false;
+
+    if (press)
+    {
+        if (! fSliderArea.contains(x, y))
+            return false;
+
+        float vper;
+
+        if (fStartPos.getX() == fEndPos.getX())
+        {
+            // vertical
+            vper = float(y - fSliderArea.getY()) / float(fSliderArea.getHeight());
+        }
+        else if (fStartPos.getY() == fEndPos.getY())
+        {
+            // horizontal
+            vper = float(x - fSliderArea.getX()) / float(fSliderArea.getWidth());
+        }
+        else
+            return false;
+
+        float value;
+
+        if (fIsSwitch)
+        {
+            if (vper < 0.5f)
+                value = fMaximum;
+            else
+                value = fMinimum;
+        }
+        else
+        {
+            value = fMaximum - vper * (fMaximum - fMinimum);
+
+            if (value < fMinimum)
+                value = fMinimum;
+            else if (value > fMaximum)
+                value = fMaximum;
+        }
+
+        fDragging = true;
+        fStartedX = x;
+        fStartedY = y;
+
+        if (fCallback != nullptr)
+            fCallback->imageSliderDragStarted(this);
+
+        setValue(value, true);
+
+        return true;
+    }
+    else if (fDragging)
+    {
+        if (fCallback != nullptr)
+            fCallback->imageSliderDragFinished(this);
+
+        fDragging = false;
+        return true;
+    }
+
+    return false;
+}
+
+bool ImageSlider::onMotion(int x, int y)
+{
+    if (! fDragging)
+        return false;
+
+    bool horizontal = fStartPos.getY() == fEndPos.getY();
+
+    if ((horizontal && fSliderArea.containsX(x)) || (fSliderArea.containsY(y) && ! horizontal))
+    {
+        float vper;
+
+        if (horizontal)
+        {
+            // horizontal
+            vper = float(x - fSliderArea.getX()) / float(fSliderArea.getWidth());
+        }
+        else
+        {
+            // vertical
+            vper = float(y - fSliderArea.getY()) / float(fSliderArea.getHeight());
+        }
+
+        float value;
+
+        if (fIsSwitch)
+        {
+            if (vper < 0.5f)
+                value = fMaximum;
+            else
+                value = fMinimum;
+        }
+        else
+        {
+            value = fMaximum - vper * (fMaximum - fMinimum);
+
+            if (value < fMinimum)
+                value = fMinimum;
+            else if (value > fMaximum)
+                value = fMaximum;
+        }
+
+        setValue(value, true);
+    }
+    else if (y < fSliderArea.getY())
+    {
+        setValue(fMaximum, true);
+    }
+    else
+    {
+        setValue(fMinimum, true);
+    }
+
+    return true;
+}
+
+void ImageSlider::_recheckArea()
+{
+    if (fStartPos.getX() == fEndPos.getX())
+    {
+        fSliderArea = Rectangle<int>(fStartPos.getX(),
+                                     fStartPos.getY(),
+                                     fImage.getWidth(),
+                                     fEndPos.getY() + fImage.getHeight() - fStartPos.getY());
+    }
+    else if (fStartPos.getY() == fEndPos.getY())
+    {
+        fSliderArea = Rectangle<int>(fStartPos.getX(),
+                                     fStartPos.getY(),
+                                     fEndPos.getX() + fImage.getWidth() - fStartPos.getX(),
+                                     fImage.getHeight());
+    }
+}
+
+// -----------------------------------------------------------------------
+
+END_NAMESPACE_DGL

dgl/src/Widget.cpp

@@ -0,0 +1,243 @@
+/*
+ * DISTRHO Plugin Toolkit (DPT)
+ * Copyright (C) 2012-2013 Filipe Coelho <falktx@falktx.com>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any purpose with
+ * or without fee is hereby granted, provided that the above copyright notice and this
+ * permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD
+ * TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN
+ * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+ * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
+ * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include "../App.hpp"
+#include "../Widget.hpp"
+#include "../Window.hpp"
+
+#include <cassert>
+
+START_NAMESPACE_DGL
+
+// -----------------------------------------------------------------------
+// Widget
+
+Widget::Widget(Window& parent)
+    : fParent(parent),
+      fVisible(true)
+{
+    fParent.addWidget(this);
+}
+
+Widget::~Widget()
+{
+    fParent.removeWidget(this);
+}
+
+bool Widget::isVisible() const noexcept
+{
+    return fVisible;
+}
+
+void Widget::setVisible(bool yesNo)
+{
+    if (fVisible == yesNo)
+        return;
+
+    fVisible = yesNo;
+    fParent.repaint();
+}
+
+void Widget::show()
+{
+    setVisible(true);
+}
+
+void Widget::hide()
+{
+    setVisible(false);
+}
+
+int Widget::getX() const noexcept
+{
+    return fArea.getX();
+}
+
+int Widget::getY() const noexcept
+{
+    return fArea.getY();
+}
+
+const Point<int>& Widget::getPos() const noexcept
+{
+    return fArea.getPos();
+}
+
+void Widget::setX(int x)
+{
+    if (fArea.getX() == x)
+        return;
+
+    fArea.setX(x);
+    fParent.repaint();
+}
+
+void Widget::setY(int y)
+{
+    if (fArea.getY() == y)
+        return;
+
+    fArea.setY(y);
+    fParent.repaint();
+}
+
+void Widget::setPos(int x, int y)
+{
+    setPos(Point<int>(x, y));
+}
+
+void Widget::setPos(const Point<int>& pos)
+{
+    if (fArea.getPos() == pos)
+        return;
+
+    fArea.setPos(pos);
+    fParent.repaint();
+}
+
+void Widget::move(int x, int y)
+{
+    fArea.move(x, y);
+    fParent.repaint();
+}
+
+void Widget::move(const Point<int>& pos)
+{
+    fArea.move(pos);
+    fParent.repaint();
+}
+
+int Widget::getWidth() const noexcept
+{
+    return fArea.getWidth();
+}
+
+int Widget::getHeight() const noexcept
+{
+    return fArea.getHeight();
+}
+
+const Size<int>& Widget::getSize() const noexcept
+{
+    return fArea.getSize();
+}
+
+void Widget::setWidth(int width)
+{
+    if (fArea.getWidth() == width)
+        return;
+
+    fArea.setWidth(width);
+    fParent.repaint();
+}
+
+void Widget::setHeight(int height)
+{
+    if (fArea.getHeight() == height)
+        return;
+
+    fArea.setHeight(height);
+    fParent.repaint();
+}
+
+void Widget::setSize(int width, int height)
+{
+    setSize(Size<int>(width, height));
+}
+
+void Widget::setSize(const Size<int>& size)
+{
+    if (fArea.getSize() == size)
+        return;
+
+    fArea.setSize(size);
+    fParent.repaint();
+}
+
+const Rectangle<int>& Widget::getArea() const noexcept
+{
+    return fArea;
+}
+
+uint32_t Widget::getEventTimestamp()
+{
+    return fParent.getEventTimestamp();
+}
+
+int Widget::getModifiers()
+{
+    return fParent.getModifiers();
+}
+
+App& Widget::getParentApp() const noexcept
+{
+    return fParent.getApp();
+}
+
+Window& Widget::getParentWindow() const noexcept
+{
+    return fParent;
+}
+
+void Widget::repaint()
+{
+    fParent.repaint();
+}
+
+bool Widget::onKeyboard(bool, uint32_t)
+{
+    return false;
+}
+
+bool Widget::onMouse(int, bool, int, int)
+{
+    return false;
+}
+
+bool Widget::onMotion(int, int)
+{
+    return false;
+}
+
+bool Widget::onScroll(float, float)
+{
+    return false;
+}
+
+bool Widget::onSpecial(bool, Key)
+{
+    return false;
+}
+
+void Widget::onReshape(int width, int height)
+{
+    glEnable(GL_BLEND);
+    glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+    glMatrixMode(GL_PROJECTION);
+    glLoadIdentity();
+    glOrtho(0, width, height, 0, 0.0f, 1.0f);
+    glViewport(0, 0, width, height);
+    glMatrixMode(GL_MODELVIEW);
+    glLoadIdentity();
+}
+
+void Widget::onClose()
+{
+}
+
+// -----------------------------------------------------------------------
+
+END_NAMESPACE_DGL

dgl/src/Window.cpp

@@ -0,0 +1,805 @@
+/*
+ * DISTRHO Plugin Toolkit (DPT)
+ * Copyright (C) 2012-2013 Filipe Coelho <falktx@falktx.com>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any purpose with
+ * or without fee is hereby granted, provided that the above copyright notice and this
+ * permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD
+ * TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN
+ * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+ * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
+ * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include "../App.hpp"
+#include "../Widget.hpp"
+#include "../Window.hpp"
+
+#include <cassert>
+#include <list>
+
+#include "pugl/pugl.h"
+
+#if DGL_OS_WINDOWS
+# include "pugl/pugl_win.cpp"
+#elif DGL_OS_MAC
+extern "C" {
+# include "pugl/pugl_osx_extended.h"
+}
+#elif DGL_OS_LINUX
+extern "C" {
+# include "pugl/pugl_x11.c"
+}
+#else
+# error Unsupported platform
+#endif
+
+#define FOR_EACH_WIDGET(it) \
+  for (std::list<Widget*>::iterator it = fWidgets.begin(); it != fWidgets.end(); ++it)
+
+#define FOR_EACH_WIDGET_INV(rit) \
+  for (std::list<Widget*>::reverse_iterator rit = fWidgets.rbegin(); rit != fWidgets.rend(); ++rit)
+
+START_NAMESPACE_DGL
+
+Window* dgl_lastUiParent = nullptr;
+
+// -----------------------------------------------------------------------
+// Window Private
+
+class Window::PrivateData
+{
+public:
+    PrivateData(App& app, Window* const self)
+        : fApp(app),
+          fSelf(self),
+          fView(puglCreate(0, "Window", 100, 100, true, false)),
+          fFirstInit(true),
+          fVisible(false),
+          fResizable(true),
+#if DGL_OS_WINDOWS
+          hwnd(0)
+#elif DGL_OS_LINUX
+          xDisplay(nullptr),
+          xWindow(0)
+#else
+          _dummy('\0')
+#endif
+    {
+        init();
+    }
+
+    PrivateData(App& app, Window* const self, Window& parent)
+        : fApp(app),
+          fSelf(self),
+          fView(puglCreate(0, "Window", 100, 100, true, false)),
+          fFirstInit(true),
+          fVisible(false),
+          fResizable(true),
+          fModal(parent.pData),
+#if DGL_OS_WINDOWS
+          hwnd(0)
+#elif DGL_OS_LINUX
+          xDisplay(nullptr),
+          xWindow(0)
+#else
+          _dummy('\0')
+#endif
+    {
+        init();
+
+#if DGL_OS_LINUX
+        PuglInternals* const parentImpl = parent.pData->fView->impl;
+
+        XSetTransientForHint(xDisplay, xWindow, parentImpl->win);
+#endif
+    }
+
+    PrivateData(App& app, Window* const self, const intptr_t parentId)
+        : fApp(app),
+          fSelf(self),
+          fView(puglCreate(parentId, "Window", 100, 100, true, true)),
+          fFirstInit(true),
+          fVisible(true),
+          fResizable(false),
+#if DGL_OS_WINDOWS
+          hwnd(0)
+#elif DGL_OS_LINUX
+          xDisplay(nullptr),
+          xWindow(0)
+#else
+          _dummy('\0')
+#endif
+    {
+        init();
+
+        // starts visible
+        fApp.oneShown();
+        fFirstInit = false;
+    }
+
+    void init()
+    {
+        if (fView == nullptr)
+            return;
+
+        dgl_lastUiParent = fSelf;
+
+        puglSetHandle(fView, this);
+        puglSetDisplayFunc(fView, onDisplayCallback);
+        puglSetKeyboardFunc(fView, onKeyboardCallback);
+        puglSetMotionFunc(fView, onMotionCallback);
+        puglSetMouseFunc(fView, onMouseCallback);
+        puglSetScrollFunc(fView, onScrollCallback);
+        puglSetSpecialFunc(fView, onSpecialCallback);
+        puglSetReshapeFunc(fView, onReshapeCallback);
+        puglSetCloseFunc(fView, onCloseCallback);
+
+#if DGL_OS_WINDOWS
+        PuglInternals* impl = fView->impl;
+        hwnd = impl->hwnd;
+#elif DGL_OS_LINUX
+        PuglInternals* impl = fView->impl;
+        xDisplay = impl->display;
+        xWindow  = impl->win;
+#endif
+
+        fApp.addWindow(fSelf);
+    }
+
+    ~PrivateData()
+    {
+        //fOnModal = false;
+        fWidgets.clear();
+
+        if (fView != nullptr)
+        {
+            fApp.removeWindow(fSelf);
+            puglDestroy(fView);
+        }
+    }
+
+    // -------------------------------------------------------------------
+
+    void close()
+    {
+        setVisible(false);
+
+        if (! fFirstInit)
+        {
+            fApp.oneHidden();
+            fFirstInit = true;
+        }
+    }
+
+    void exec(const bool lockWait)
+    {
+        exec_init();
+
+        if (lockWait)
+        {
+            while (fVisible && fModal.enabled)
+            {
+                // idle()
+                puglProcessEvents(fView);
+
+                if (fModal.parent != nullptr)
+                    fModal.parent->idle();
+
+                msleep(10);
+            }
+
+            exec_fini();
+        }
+        else
+        {
+            idle();
+        }
+    }
+
+    // -------------------------------------------------------------------
+
+    void focus()
+    {
+#if DGL_OS_WINDOWS
+        SetForegroundWindow(hwnd);
+        SetActiveWindow(hwnd);
+        SetFocus(hwnd);
+#elif DGL_OS_MAC
+        puglImplFocus(fView);
+#elif DGL_OS_LINUX
+        XRaiseWindow(xDisplay, xWindow);
+        XSetInputFocus(xDisplay, xWindow, RevertToPointerRoot, CurrentTime);
+#endif
+    }
+
+    void idle()
+    {
+        puglProcessEvents(fView);
+
+        if (fVisible && fModal.enabled && fModal.parent != nullptr)
+            fModal.parent->idle();
+    }
+
+    void repaint()
+    {
+        puglPostRedisplay(fView);
+    }
+
+    void flush()
+    {
+#if DGL_OS_WINDOWS
+        UpdateWindow(hwnd);
+#elif DGL_OS_MAC
+#elif DGL_OS_LINUX
+        XFlush(xDisplay);
+#endif
+    }
+
+    // -------------------------------------------------------------------
+
+    bool isVisible() const noexcept
+    {
+        return fVisible;
+    }
+
+    void setVisible(const bool yesNo)
+    {
+        if (fVisible == yesNo)
+            return;
+
+        fVisible = yesNo;
+
+#ifndef DGL_OS_MAC
+        if (yesNo && fFirstInit)
+            setSize(fView->width, fView->height, true);
+#endif
+
+#if DGL_OS_WINDOWS
+        if (yesNo)
+        {
+            ShowWindow(hwnd, WS_VISIBLE);
+
+            if (! fFirstInit)
+                ShowWindow(hwnd, SW_RESTORE);
+        }
+        else
+        {
+            ShowWindow(hwnd, SW_HIDE);
+        }
+#elif DGL_OS_MAC
+        puglImplSetVisible(fView, yesNo);
+#elif DGL_OS_LINUX
+        if (yesNo)
+            XMapRaised(xDisplay, xWindow);
+        else
+            XUnmapWindow(xDisplay, xWindow);
+#endif
+
+        if (yesNo)
+        {
+            if (fFirstInit)
+            {
+                fApp.oneShown();
+                fFirstInit = false;
+            }
+        }
+        else if (fModal.enabled)
+            exec_fini();
+    }
+
+    // -------------------------------------------------------------------
+
+    bool isResizable() const noexcept
+    {
+        return fResizable;
+    }
+
+    void setResizable(const bool yesNo)
+    {
+        if (fResizable == yesNo)
+            return;
+
+        fResizable = yesNo;
+
+#ifndef DGL_OS_MAC
+        setSize(fView->width, fView->height, true);
+#endif
+    }
+
+    // -------------------------------------------------------------------
+
+#ifndef DGL_OS_MAC
+    int getWidth() const noexcept
+    {
+        return fView->width;
+    }
+
+    int getHeight() const noexcept
+    {
+        return fView->height;
+    }
+
+    Size<int> getSize() const noexcept
+    {
+        return Size<int>(fView->width, fView->height);
+    }
+#endif
+
+    void setSize(unsigned int width, unsigned int height, const bool forced = false)
+    {
+        if (width == 0)
+            width = 1;
+        if (height == 0)
+            height = 1;
+
+#ifndef DGL_OS_MAC
+        if (fView->width == (int)width && fView->height == (int)height && ! forced)
+           return;
+
+        fView->width  = width;
+        fView->height = height;
+#endif
+
+#if DGL_OS_WINDOWS
+        int winFlags = WS_POPUPWINDOW | WS_CAPTION;
+
+        if (fResizable)
+            winFlags |= WS_SIZEBOX;
+
+        RECT wr = { 0, 0, (long)width, (long)height };
+        AdjustWindowRectEx(&wr, winFlags, FALSE, WS_EX_TOPMOST);
+
+        SetWindowPos(hwnd, 0, 0, 0, wr.right-wr.left, wr.bottom-wr.top, SWP_NOACTIVATE|SWP_NOMOVE|SWP_NOOWNERZORDER|SWP_NOZORDER);
+#elif DGL_OS_MAC
+        puglImplSetSize(fView, width, height);
+#elif DGL_OS_LINUX
+        XResizeWindow(xDisplay, xWindow, width, height);
+
+        if (! fResizable)
+        {
+            XSizeHints sizeHints;
+            memset(&sizeHints, 0, sizeof(sizeHints));
+
+            sizeHints.flags      = PMinSize|PMaxSize;
+            sizeHints.min_width  = width;
+            sizeHints.min_height = height;
+            sizeHints.max_width  = width;
+            sizeHints.max_height = height;
+
+            XSetNormalHints(xDisplay, xWindow, &sizeHints);
+        }
+#endif
+
+        repaint();
+    }
+
+    // -------------------------------------------------------------------
+
+    void setTitle(const char* const title)
+    {
+#if DGL_OS_WINDOWS
+        SetWindowTextA(hwnd, title);
+#elif DGL_OS_MAC
+        puglImplSetTitle(fView, title);
+#elif DGL_OS_LINUX
+        XStoreName(xDisplay, xWindow, title);
+#endif
+    }
+
+    App& getApp() const noexcept
+    {
+        return fApp;
+    }
+
+    int getModifiers() const
+    {
+        return puglGetModifiers(fView);
+    }
+
+    uint32_t getEventTimestamp() const
+    {
+        return puglGetEventTimestamp(fView);
+    }
+
+    intptr_t getWindowId() const
+    {
+        return puglGetNativeWindow(fView);
+    }
+
+    // -------------------------------------------------------------------
+
+    void addWidget(Widget* const widget)
+    {
+        fWidgets.push_back(widget);
+    }
+
+    void removeWidget(Widget* const widget)
+    {
+        fWidgets.remove(widget);
+    }
+
+    // -------------------------------------------------------------------
+
+    void exec_init()
+    {
+        fModal.enabled = true;
+        assert(fModal.parent != nullptr);
+
+        if (fModal.parent == nullptr)
+            return setVisible(true);
+
+        fModal.parent->fModal.childFocus = this;
+
+#if DGL_OS_WINDOWS
+        // Center this window
+        PuglInternals* const parentImpl = fParent->fView->impl;
+
+        RECT curRect;
+        RECT parentRect;
+        GetWindowRect(hwnd, &curRect);
+        GetWindowRect(parentImpl->hwnd, &parentRect);
+
+        int x = parentRect.left+(parentRect.right-curRect.right)/2;
+        int y = parentRect.top +(parentRect.bottom-curRect.bottom)/2;
+
+        SetWindowPos(hwnd, 0, x, y, 0, 0, SWP_NOACTIVATE|SWP_NOOWNERZORDER|SWP_NOSIZE|SWP_NOZORDER);
+        UpdateWindow(hwnd);
+#endif
+
+        fModal.parent->setVisible(true);
+        setVisible(true);
+    }
+
+    void exec_fini()
+    {
+        fModal.enabled = false;
+
+        if (fModal.parent != nullptr)
+            fModal.parent->fModal.childFocus = nullptr;
+    }
+
+    // -------------------------------------------------------------------
+
+protected:
+    void onDisplay()
+    {
+        glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+
+        FOR_EACH_WIDGET(it)
+        {
+            Widget* const widget(*it);
+
+            if (widget->isVisible())
+                widget->onDisplay();
+        }
+    }
+
+    void onKeyboard(const bool press, const uint32_t key)
+    {
+        if (fModal.childFocus != nullptr)
+            return fModal.childFocus->focus();
+
+        FOR_EACH_WIDGET_INV(rit)
+        {
+            Widget* const widget(*rit);
+
+            if (widget->isVisible() && widget->onKeyboard(press, key))
+                break;
+        }
+    }
+
+    void onMouse(const int button, const bool press, const int x, const int y)
+    {
+        if (fModal.childFocus != nullptr)
+            return fModal.childFocus->focus();
+
+        FOR_EACH_WIDGET_INV(rit)
+        {
+            Widget* const widget(*rit);
+
+            if (widget->isVisible() && widget->onMouse(button, press, x, y))
+                break;
+        }
+    }
+
+    void onMotion(const int x, const int y)
+    {
+        if (fModal.childFocus != nullptr)
+            return;
+
+        FOR_EACH_WIDGET_INV(rit)
+        {
+            Widget* const widget(*rit);
+
+            if (widget->isVisible() && widget->onMotion(x, y))
+                break;
+        }
+    }
+
+    void onScroll(const float dx, const float dy)
+    {
+        if (fModal.childFocus != nullptr)
+            return;
+
+        FOR_EACH_WIDGET_INV(rit)
+        {
+            Widget* const widget(*rit);
+
+            if (widget->isVisible() && widget->onScroll(dx, dy))
+                break;
+        }
+    }
+
+    void onSpecial(const bool press, const Key key)
+    {
+        if (fModal.childFocus != nullptr)
+            return;
+
+        FOR_EACH_WIDGET_INV(rit)
+        {
+            Widget* const widget(*rit);
+
+            if (widget->isVisible() && widget->onSpecial(press, key))
+                break;
+        }
+    }
+
+    void onReshape(const int width, const int height)
+    {
+        printf("resized: %i:%i\n", width, height);
+        FOR_EACH_WIDGET(it)
+        {
+            Widget* const widget(*it);
+            widget->onReshape(width, height);
+        }
+    }
+
+    void onClose()
+    {
+        fModal.enabled = false;
+
+        if (fModal.childFocus != nullptr)
+            fModal.childFocus->onClose();
+
+        FOR_EACH_WIDGET(it)
+        {
+            Widget* const widget(*it);
+            widget->onClose();
+        }
+
+        close();
+    }
+
+    // -------------------------------------------------------------------
+
+private:
+    App&            fApp;
+    Window*   const fSelf;
+    PuglView* const fView;
+
+    bool fFirstInit;
+    bool fVisible;
+    bool fResizable;
+    std::list<Widget*> fWidgets;
+
+    struct Modal {
+        bool enabled;
+        PrivateData* parent;
+        PrivateData* childFocus;
+
+        Modal()
+            : enabled(false),
+              parent(nullptr),
+              childFocus(nullptr) {}
+
+        Modal(PrivateData* const p)
+            : enabled(false),
+              parent(p),
+              childFocus(nullptr) {}
+
+        ~Modal()
+        {
+            assert(! enabled);
+            assert(childFocus == nullptr);
+        }
+    } fModal;
+
+#if DGL_OS_WINDOWS
+    HWND     hwnd;
+#elif DGL_OS_LINUX
+    Display* xDisplay;
+    ::Window xWindow;
+#else
+    char      _dummy;
+#endif
+
+    // -------------------------------------------------------------------
+    // Callbacks
+
+    #define handlePtr ((PrivateData*)puglGetHandle(view))
+
+    static void onDisplayCallback(PuglView* view)
+    {
+        handlePtr->onDisplay();
+    }
+
+    static void onKeyboardCallback(PuglView* view, bool press, uint32_t key)
+    {
+        handlePtr->onKeyboard(press, key);
+    }
+
+    static void onMouseCallback(PuglView* view, int button, bool press, int x, int y)
+    {
+        handlePtr->onMouse(button, press, x, y);
+    }
+
+    static void onMotionCallback(PuglView* view, int x, int y)
+    {
+        handlePtr->onMotion(x, y);
+    }
+
+    static void onScrollCallback(PuglView* view, float dx, float dy)
+    {
+        handlePtr->onScroll(dx, dy);
+    }
+
+    static void onSpecialCallback(PuglView* view, bool press, PuglKey key)
+    {
+        handlePtr->onSpecial(press, static_cast<Key>(key));
+    }
+
+    static void onReshapeCallback(PuglView* view, int width, int height)
+    {
+        handlePtr->onReshape(width, height);
+    }
+
+    static void onCloseCallback(PuglView* view)
+    {
+        handlePtr->onClose();
+    }
+
+    #undef handlePtr
+};
+
+// -----------------------------------------------------------------------
+// Window
+
+Window::Window(App& app)
+    : pData(new PrivateData(app, this))
+{
+}
+
+Window::Window(App& app, Window& parent)
+    : pData(new PrivateData(app, this, parent))
+{
+}
+
+Window::Window(App& app, intptr_t parentId)
+    : pData(new PrivateData(app, this, parentId))
+{
+}
+
+Window::~Window()
+{
+    delete pData;
+}
+
+void Window::show()
+{
+    pData->setVisible(true);
+}
+
+void Window::hide()
+{
+    pData->setVisible(false);
+}
+
+void Window::close()
+{
+    pData->close();
+}
+
+void Window::exec(bool lockWait)
+{
+    pData->exec(lockWait);
+}
+
+void Window::focus()
+{
+    pData->focus();
+}
+
+void Window::idle()
+{
+    pData->idle();
+}
+
+void Window::repaint()
+{
+    pData->repaint();
+}
+
+bool Window::isVisible() const noexcept
+{
+    return pData->isVisible();
+}
+
+void Window::setVisible(bool yesNo)
+{
+    pData->setVisible(yesNo);
+}
+
+bool Window::isResizable() const noexcept
+{
+    return pData->isResizable();
+}
+
+void Window::setResizable(bool yesNo)
+{
+    pData->setResizable(yesNo);
+}
+
+#ifndef DGL_OS_MAC
+int Window::getWidth() const noexcept
+{
+    return pData->getWidth();
+}
+
+int Window::getHeight() const noexcept
+{
+    return pData->getHeight();
+}
+
+Size<int> Window::getSize() const noexcept
+{
+    return pData->getSize();
+}
+#endif
+
+void Window::setSize(unsigned int width, unsigned int height)
+{
+    pData->setSize(width, height);
+}
+
+void Window::setTitle(const char* title)
+{
+    pData->setTitle(title);
+}
+
+App& Window::getApp() const noexcept
+{
+    return pData->getApp();
+}
+
+int Window::getModifiers() const
+{
+    return pData->getModifiers();
+}
+
+uint32_t Window::getEventTimestamp() const
+{
+    return pData->getEventTimestamp();
+}
+
+intptr_t Window::getWindowId() const
+{
+    return pData->getWindowId();
+}
+
+void Window::addWidget(Widget* const widget)
+{
+    pData->addWidget(widget);
+}
+
+void Window::removeWidget(Widget* const widget)
+{
+    pData->removeWidget(widget);
+}
+
+// -----------------------------------------------------------------------
+
+END_NAMESPACE_DGL

dgl/src/pugl/pugl.h

@@ -0,0 +1,353 @@
+/*
+  Copyright 2012 David Robillard <http://drobilla.net>
+
+  Permission to use, copy, modify, and/or distribute this software for any
+  purpose with or without fee is hereby granted, provided that the above
+  copyright notice and this permission notice appear in all copies.
+
+  THIS SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+  WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+  MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+  ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+  WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+  ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+  OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+*/
+
+/**
+   @file pugl.h API for Pugl, a minimal portable API for OpenGL.
+*/
+
+#ifndef PUGL_H_INCLUDED
+#define PUGL_H_INCLUDED
+
+#include <stdint.h>
+
+/*
+  This API is pure portable C and contains no platform specific elements, or
+  even a GL dependency.  However, unfortunately GL includes vary across
+  platforms so they are included here to allow for pure portable programs.
+*/
+#ifdef __APPLE__
+#    include "OpenGL/gl.h"
+#else
+#    ifdef _WIN32
+#        include <windows.h>  /* Broken Windows GL headers require this */
+#    endif
+#    include "GL/gl.h"
+#endif
+
+#ifdef PUGL_SHARED
+#    ifdef _WIN32
+#        define PUGL_LIB_IMPORT __declspec(dllimport)
+#        define PUGL_LIB_EXPORT __declspec(dllexport)
+#    else
+#        define PUGL_LIB_IMPORT __attribute__((visibility("default")))
+#        define PUGL_LIB_EXPORT __attribute__((visibility("default")))
+#    endif
+#    ifdef PUGL_INTERNAL
+#        define PUGL_API PUGL_LIB_EXPORT
+#    else
+#        define PUGL_API PUGL_LIB_IMPORT
+#    endif
+#else
+#    define PUGL_API
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#else
+#    include <stdbool.h>
+#endif
+
+/**
+   @defgroup pugl Pugl
+   A minimal portable API for OpenGL.
+   @{
+*/
+
+/**
+   An OpenGL view.
+*/
+typedef struct PuglViewImpl PuglView;
+
+/**
+   A native window handle.
+
+   On X11, this is a Window.
+   On OSX, this is an NSView*.
+   On Windows, this is a HWND.
+*/
+typedef intptr_t PuglNativeWindow;
+
+/**
+   Return status code.
+*/
+typedef enum {
+	PUGL_SUCCESS = 0
+} PuglStatus;
+
+/**
+   Convenience symbols for ASCII control characters.
+*/
+typedef enum {
+	PUGL_CHAR_BACKSPACE = 0x08,
+	PUGL_CHAR_ESCAPE    = 0x1B,
+	PUGL_CHAR_DELETE    = 0x7F
+} PuglChar;
+	
+/**
+   Special (non-Unicode) keyboard keys.
+*/
+typedef enum {
+	PUGL_KEY_F1 = 1,
+	PUGL_KEY_F2,
+	PUGL_KEY_F3,
+	PUGL_KEY_F4,
+	PUGL_KEY_F5,
+	PUGL_KEY_F6,
+	PUGL_KEY_F7,
+	PUGL_KEY_F8,
+	PUGL_KEY_F9,
+	PUGL_KEY_F10,
+	PUGL_KEY_F11,
+	PUGL_KEY_F12,
+	PUGL_KEY_LEFT,
+	PUGL_KEY_UP,
+	PUGL_KEY_RIGHT,
+	PUGL_KEY_DOWN,
+	PUGL_KEY_PAGE_UP,
+	PUGL_KEY_PAGE_DOWN,
+	PUGL_KEY_HOME,
+	PUGL_KEY_END,
+	PUGL_KEY_INSERT,
+	PUGL_KEY_SHIFT,
+	PUGL_KEY_CTRL,
+	PUGL_KEY_ALT,
+	PUGL_KEY_SUPER
+} PuglKey;
+
+/**
+   Keyboard modifier flags.
+*/
+typedef enum {
+	PUGL_MOD_SHIFT = 1,       /**< Shift key */ 
+	PUGL_MOD_CTRL  = 1 << 1,  /**< Control key */
+	PUGL_MOD_ALT   = 1 << 2,  /**< Alt/Option key */
+	PUGL_MOD_SUPER = 1 << 3   /**< Mod4/Command/Windows key */
+} PuglMod;
+	
+/**
+   Handle for opaque user data.
+*/
+typedef void* PuglHandle;
+
+/**
+   A function called when the window is closed.
+*/
+typedef void (*PuglCloseFunc)(PuglView* view);
+
+/**
+   A function called to draw the view contents with OpenGL.
+*/
+typedef void (*PuglDisplayFunc)(PuglView* view);
+
+/**
+   A function called when a key is pressed or released.
+   @param view The view the event occured in.
+   @param press True if the key was pressed, false if released.
+   @param key Unicode point of the key pressed.
+*/
+typedef void (*PuglKeyboardFunc)(PuglView* view, bool press, uint32_t key);
+
+/**
+   A function called when the pointer moves.
+   @param view The view the event occured in.
+   @param x The window-relative x coordinate of the pointer.
+   @param y The window-relative y coordinate of the pointer.
+*/
+typedef void (*PuglMotionFunc)(PuglView* view, int x, int y);
+
+/**
+   A function called when a mouse button is pressed or released.
+   @param view The view the event occured in.
+   @param button The button number (1 = left, 2 = middle, 3 = right).
+   @param press True if the key was pressed, false if released.
+   @param x The window-relative x coordinate of the pointer.
+   @param y The window-relative y coordinate of the pointer.
+*/
+typedef void (*PuglMouseFunc)(
+	PuglView* view, int button, bool press, int x, int y);
+
+/**
+   A function called when the view is resized.
+   @param view The view being resized.
+   @param width The new view width.
+   @param height The new view height.
+*/
+typedef void (*PuglReshapeFunc)(PuglView* view, int width, int height);
+
+/**
+   A function called on scrolling (e.g. mouse wheel or track pad).
+
+   The distances used here are in "lines", a single tick of a clicking mouse
+   wheel.  For example, @p dy = 1.0 scrolls 1 line up.  Some systems and
+   devices support finer resolution and/or higher values for fast scrolls,
+   so programs should handle any value gracefully.
+
+   @param view The view being scrolled.
+   @param dx The scroll x distance.
+   @param dx The scroll y distance.
+*/
+typedef void (*PuglScrollFunc)(PuglView* view, float dx, float dy);
+
+/**
+   A function called when a special key is pressed or released.
+
+   This callback allows the use of keys that do not have unicode points.  Note
+   that some non-printable keys 
+   @param view The view the event occured in.
+   @param press True if the key was pressed, false if released.
+   @param key The key pressed.
+*/
+typedef void (*PuglSpecialFunc)(PuglView* view, bool press, PuglKey key);
+
+/**
+   Create a new GL window.
+   @param parent Parent window, or 0 for top level.
+   @param title Window title, or NULL.
+   @param width Window width in pixels.
+   @param height Window height in pixels.
+   @param resizable Whether window should be user resizable.
+   @param visible Whether window should be initially visible.
+*/
+PUGL_API PuglView*
+puglCreate(PuglNativeWindow parent,
+           const char*      title,
+           int              width,
+           int              height,
+           bool             resizable,
+           bool             visible);
+
+/**
+   Set the handle to be passed to all callbacks.
+
+   This is generally a pointer to a struct which contains all necessary state.
+   Everything needed in callbacks should be here, not in static variables.
+
+   Note the lack of this facility makes GLUT unsuitable for plugins or
+   non-trivial programs; this mistake is largely why Pugl exists.
+*/
+PUGL_API void
+puglSetHandle(PuglView* view, PuglHandle handle);
+
+/**
+   Get the handle to be passed to all callbacks.
+*/
+PUGL_API PuglHandle
+puglGetHandle(PuglView* view);
+
+/**
+   Return the timestamp (if any) of the currently-processing event.
+*/
+PUGL_API uint32_t
+puglGetEventTimestamp(PuglView* view);
+
+/**
+   Get the currently active modifiers (PuglMod flags).
+
+   This should only be called from an event handler.
+*/
+PUGL_API int
+puglGetModifiers(PuglView* view);
+
+/**
+   Ignore synthetic repeated key events.
+*/
+PUGL_API void
+puglIgnoreKeyRepeat(PuglView* view, bool ignore);
+
+/**
+   Set the function to call when the window is closed.
+*/
+PUGL_API void
+puglSetCloseFunc(PuglView* view, PuglCloseFunc closeFunc);
+
+/**
+   Set the display function which should draw the UI using GL.
+*/
+PUGL_API void
+puglSetDisplayFunc(PuglView* view, PuglDisplayFunc displayFunc);
+
+/**
+   Set the function to call on keyboard events.
+*/
+PUGL_API void
+puglSetKeyboardFunc(PuglView* view, PuglKeyboardFunc keyboardFunc);
+
+/**
+   Set the function to call on mouse motion.
+*/
+PUGL_API void
+puglSetMotionFunc(PuglView* view, PuglMotionFunc motionFunc);
+
+/**
+   Set the function to call on mouse button events.
+*/
+PUGL_API void
+puglSetMouseFunc(PuglView* view, PuglMouseFunc mouseFunc);
+
+/**
+   Set the function to call on scroll events.
+*/
+PUGL_API void
+puglSetScrollFunc(PuglView* view, PuglScrollFunc scrollFunc);
+
+/**
+   Set the function to call on special events.
+*/
+PUGL_API void
+puglSetSpecialFunc(PuglView* view, PuglSpecialFunc specialFunc);
+
+/**
+   Set the function to call when the window size changes.
+*/
+PUGL_API void
+puglSetReshapeFunc(PuglView* view, PuglReshapeFunc reshapeFunc);
+
+/**
+   Return the native window handle.
+*/
+PUGL_API PuglNativeWindow
+puglGetNativeWindow(PuglView* view);
+
+/**
+   Process all pending window events.
+
+   This handles input events as well as rendering, so it should be called
+   regularly and rapidly enough to keep the UI responsive.
+*/
+PUGL_API PuglStatus
+puglProcessEvents(PuglView* view);
+
+/**
+   Request a redisplay on the next call to puglProcessEvents().
+*/
+PUGL_API void
+puglPostRedisplay(PuglView* view);
+
+/**
+   Destroy a GL window.
+*/
+PUGL_API void
+puglDestroy(PuglView* view);
+
+/**
+   @}
+*/
+
+#ifdef __cplusplus
+}  /* extern "C" */
+#endif
+
+#endif  /* PUGL_H_INCLUDED */

dgl/src/pugl/pugl_internal.h

@@ -0,0 +1,143 @@
+/*
+  Copyright 2012 David Robillard <http://drobilla.net>
+
+  Permission to use, copy, modify, and/or distribute this software for any
+  purpose with or without fee is hereby granted, provided that the above
+  copyright notice and this permission notice appear in all copies.
+
+  THIS SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+  WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+  MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+  ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+  WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+  ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+  OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+*/
+
+/**
+   @file pugl_internal.h Private platform-independent definitions.
+
+   Note this file contains function definitions, so it must be compiled into
+   the final binary exactly once.  Each platform specific implementation file
+   including it once should achieve this.
+*/
+
+#include "pugl.h"
+
+typedef struct PuglInternalsImpl PuglInternals;
+
+struct PuglViewImpl {
+	PuglHandle       handle;
+	PuglCloseFunc    closeFunc;
+	PuglDisplayFunc  displayFunc;
+	PuglKeyboardFunc keyboardFunc;
+	PuglMotionFunc   motionFunc;
+	PuglMouseFunc    mouseFunc;
+	PuglReshapeFunc  reshapeFunc;
+	PuglScrollFunc   scrollFunc;
+	PuglSpecialFunc  specialFunc;
+
+	PuglInternals* impl;
+
+	int      width;
+	int      height;
+	int      mods;
+	bool     mouse_in_view;
+	bool     ignoreKeyRepeat;
+	bool     redisplay;
+	uint32_t event_timestamp_ms;
+};
+
+void
+puglSetHandle(PuglView* view, PuglHandle handle)
+{
+	view->handle = handle;
+}
+
+PuglHandle
+puglGetHandle(PuglView* view)
+{
+	return view->handle;
+}
+
+uint32_t
+puglGetEventTimestamp(PuglView* view)
+{
+	return view->event_timestamp_ms;
+}
+
+int
+puglGetModifiers(PuglView* view)
+{
+	return view->mods;
+}
+
+void
+puglDefaultReshape(PuglView* view, int width, int height)
+{
+	glMatrixMode(GL_PROJECTION);
+	glLoadIdentity();
+	glOrtho(0, width, height, 0, 0, 1);
+	glViewport(0, 0, width, height);
+
+	glMatrixMode(GL_MODELVIEW);
+	glLoadIdentity();
+	return;
+
+	// unused
+	(void)view;
+}
+
+void
+puglIgnoreKeyRepeat(PuglView* view, bool ignore)
+{
+	view->ignoreKeyRepeat = ignore;
+}
+
+void
+puglSetCloseFunc(PuglView* view, PuglCloseFunc closeFunc)
+{
+	view->closeFunc = closeFunc;
+}
+
+void
+puglSetDisplayFunc(PuglView* view, PuglDisplayFunc displayFunc)
+{
+	view->displayFunc = displayFunc;
+}
+
+void
+puglSetKeyboardFunc(PuglView* view, PuglKeyboardFunc keyboardFunc)
+{
+	view->keyboardFunc = keyboardFunc;
+}
+
+void
+puglSetMotionFunc(PuglView* view, PuglMotionFunc motionFunc)
+{
+	view->motionFunc = motionFunc;
+}
+
+void
+puglSetMouseFunc(PuglView* view, PuglMouseFunc mouseFunc)
+{
+	view->mouseFunc = mouseFunc;
+}
+
+void
+puglSetReshapeFunc(PuglView* view, PuglReshapeFunc reshapeFunc)
+{
+	view->reshapeFunc = reshapeFunc;
+}
+
+void
+puglSetScrollFunc(PuglView* view, PuglScrollFunc scrollFunc)
+{
+	view->scrollFunc = scrollFunc;
+}
+
+void
+puglSetSpecialFunc(PuglView* view, PuglSpecialFunc specialFunc)
+{
+	view->specialFunc = specialFunc;
+}

dgl/src/pugl/pugl_osx.m

@@ -0,0 +1,418 @@
+/*
+  Copyright 2012 David Robillard <http://drobilla.net>
+
+  Permission to use, copy, modify, and/or distribute this software for any
+  purpose with or without fee is hereby granted, provided that the above
+  copyright notice and this permission notice appear in all copies.
+
+  THIS SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+  WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+  MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+  ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+  WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+  ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+  OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+*/
+
+/**
+   @file pugl_osx.m OSX/Cocoa Pugl Implementation.
+*/
+
+#include <stdlib.h>
+
+#import <Cocoa/Cocoa.h>
+
+#include "pugl_internal.h"
+
+@interface PuglWindow : NSWindow
+{
+@public
+	PuglView* puglview;
+}
+
+- (id) initWithContentRect:(NSRect)contentRect
+                 styleMask:(unsigned int)aStyle
+                   backing:(NSBackingStoreType)bufferingType
+                     defer:(BOOL)flag;
+- (void) setPuglview:(PuglView*)view;
+- (BOOL) windowShouldClose:(id)sender;
+@end
+
+@implementation PuglWindow
+
+- (id)initWithContentRect:(NSRect)contentRect
+                styleMask:(unsigned int)aStyle
+                  backing:(NSBackingStoreType)bufferingType
+                    defer:(BOOL)flag
+{
+	NSWindow* result = [super initWithContentRect:contentRect
+	                                    styleMask:(NSClosableWindowMask |
+	                                               NSTitledWindowMask |
+	                                               NSResizableWindowMask)
+	                                      backing:NSBackingStoreBuffered defer:NO];
+
+	[result setAcceptsMouseMovedEvents:YES];
+	[result setLevel: CGShieldingWindowLevel() + 1];
+
+	return result;
+}
+
+- (void)setPuglview:(PuglView*)view
+{
+	puglview = view;
+	[self setContentSize:NSMakeSize(view->width, view->height) ];
+}
+
+- (BOOL)windowShouldClose:(id)sender
+{
+	if (puglview->closeFunc)
+		puglview->closeFunc(puglview);
+	return YES;
+}
+
+@end
+
+void
+puglDisplay(PuglView* view)
+{
+	if (view->displayFunc) {
+		view->displayFunc(view);
+	}
+}
+
+@interface PuglOpenGLView : NSOpenGLView
+{
+	int colorBits;
+	int depthBits;
+@public
+	PuglView* puglview;
+
+	NSTrackingArea* trackingArea;
+}
+
+- (id) initWithFrame:(NSRect)frame
+           colorBits:(int)numColorBits
+           depthBits:(int)numDepthBits;
+- (void) reshape;
+- (void) drawRect:(NSRect)rect;
+- (void) mouseMoved:(NSEvent*)event;
+- (void) mouseDragged:(NSEvent*)event;
+- (void) mouseDown:(NSEvent*)event;
+- (void) mouseUp:(NSEvent*)event;
+- (void) rightMouseDown:(NSEvent*)event;
+- (void) rightMouseUp:(NSEvent*)event;
+- (void) keyDown:(NSEvent*)event;
+- (void) keyUp:(NSEvent*)event;
+- (void) flagsChanged:(NSEvent*)event;
+
+@end
+
+@implementation PuglOpenGLView
+
+- (id) initWithFrame:(NSRect)frame
+           colorBits:(int)numColorBits
+           depthBits:(int)numDepthBits
+{
+	colorBits = numColorBits;
+	depthBits = numDepthBits;
+
+	NSOpenGLPixelFormatAttribute pixelAttribs[16] = {
+		NSOpenGLPFADoubleBuffer,
+		NSOpenGLPFAAccelerated,
+		NSOpenGLPFAColorSize,
+		colorBits,
+		NSOpenGLPFADepthSize,
+		depthBits,
+		0
+	};
+
+	NSOpenGLPixelFormat* pixelFormat = [[NSOpenGLPixelFormat alloc]
+		              initWithAttributes:pixelAttribs];
+
+	if (pixelFormat) {
+		self = [super initWithFrame:frame pixelFormat:pixelFormat];
+		[pixelFormat release];
+		if (self) {
+			[[self openGLContext] makeCurrentContext];
+			[self reshape];
+		}
+	} else {
+		self = nil;
+	}
+
+	return self;
+}
+
+- (void) reshape
+{
+	[[self openGLContext] update];
+
+	NSRect bounds = [self bounds];
+	int    width  = bounds.size.width;
+	int    height = bounds.size.height;
+
+	if (puglview) {
+		/* NOTE: Apparently reshape gets called when the GC gets around to
+		   deleting the view (?), so we must have reset puglview to NULL when
+		   this comes around.
+		*/
+		if (puglview->reshapeFunc) {
+			puglview->reshapeFunc(puglview, width, height);
+		} else {
+			puglDefaultReshape(puglview, width, height);
+		}
+
+		puglview->width  = width;
+		puglview->height = height;
+	}
+}
+
+- (void) drawRect:(NSRect)rect
+{
+	puglDisplay(puglview);
+	glFlush();
+	glSwapAPPLE();
+}
+
+static unsigned
+getModifiers(PuglView* view, NSEvent* ev)
+{
+	const unsigned modifierFlags = [ev modifierFlags];
+
+	view->event_timestamp_ms = fmod([ev timestamp] * 1000.0, UINT32_MAX);
+
+	unsigned mods = 0;
+	mods |= (modifierFlags & NSShiftKeyMask)     ? PUGL_MOD_SHIFT : 0;
+	mods |= (modifierFlags & NSControlKeyMask)   ? PUGL_MOD_CTRL  : 0;
+	mods |= (modifierFlags & NSAlternateKeyMask) ? PUGL_MOD_ALT   : 0;
+	mods |= (modifierFlags & NSCommandKeyMask)   ? PUGL_MOD_SUPER : 0;
+	return mods;
+}
+
+-(void)updateTrackingAreas
+{
+	if (trackingArea != nil) {
+		[self removeTrackingArea:trackingArea];
+		[trackingArea release];
+	}
+
+	const int opts = (NSTrackingMouseEnteredAndExited |
+	                  NSTrackingMouseMoved |
+	                  NSTrackingActiveAlways);
+	trackingArea = [ [NSTrackingArea alloc] initWithRect:[self bounds]
+	                                             options:opts
+	                                               owner:self
+	                                            userInfo:nil];
+	[self addTrackingArea:trackingArea];
+}
+
+- (void)mouseEntered:(NSEvent*)theEvent
+{
+	[self updateTrackingAreas];
+}
+
+- (void)mouseExited:(NSEvent*)theEvent
+{
+}
+
+- (void) mouseMoved:(NSEvent*)event
+{
+	if (puglview->motionFunc) {
+		NSPoint loc = [event locationInWindow];
+		puglview->mods = getModifiers(puglview, event);
+		puglview->motionFunc(puglview, loc.x, puglview->height - loc.y);
+	}
+}
+
+- (void) mouseDragged:(NSEvent*)event
+{
+	if (puglview->motionFunc) {
+		NSPoint loc = [event locationInWindow];
+		puglview->mods = getModifiers(puglview, event);
+		puglview->motionFunc(puglview, loc.x, puglview->height - loc.y);
+	}
+}
+
+- (void) mouseDown:(NSEvent*)event
+{
+	if (puglview->mouseFunc) {
+		NSPoint loc = [event locationInWindow];
+		puglview->mods = getModifiers(puglview, event);
+		puglview->mouseFunc(puglview, 1, true, loc.x, puglview->height - loc.y);
+	}
+}
+
+- (void) mouseUp:(NSEvent*)event
+{
+	if (puglview->mouseFunc) {
+		NSPoint loc = [event locationInWindow];
+		puglview->mods = getModifiers(puglview, event);
+		puglview->mouseFunc(puglview, 1, false, loc.x, puglview->height - loc.y);
+	}
+	[self updateTrackingAreas];
+}
+
+- (void) rightMouseDown:(NSEvent*)event
+{
+	if (puglview->mouseFunc) {
+		NSPoint loc = [event locationInWindow];
+		puglview->mods = getModifiers(puglview, event);
+		puglview->mouseFunc(puglview, 3, true, loc.x, puglview->height - loc.y);
+	}
+}
+
+- (void) rightMouseUp:(NSEvent*)event
+{
+	if (puglview->mouseFunc) {
+		NSPoint loc = [event locationInWindow];
+		puglview->mods = getModifiers(puglview, event);
+		puglview->mouseFunc(puglview, 3, false, loc.x, puglview->height - loc.y);
+	}
+}
+
+- (void) scrollWheel:(NSEvent*)event
+{
+	if (puglview->scrollFunc) {
+		puglview->mods = getModifiers(puglview, event);
+		puglview->scrollFunc(puglview, [event deltaX], [event deltaY]);
+	}
+	[self updateTrackingAreas];
+}
+
+- (void) keyDown:(NSEvent*)event
+{
+	if (puglview->keyboardFunc && !(puglview->ignoreKeyRepeat && [event isARepeat])) {
+		NSString* chars = [event characters];
+		puglview->mods = getModifiers(puglview, event);
+		puglview->keyboardFunc(puglview, true, [chars characterAtIndex:0]);
+	}
+}
+
+- (void) keyUp:(NSEvent*)event
+{
+	if (puglview->keyboardFunc) {
+		NSString* chars = [event characters];
+		puglview->mods = getModifiers(puglview, event);
+		puglview->keyboardFunc(puglview, false,  [chars characterAtIndex:0]);
+	}
+}
+
+- (void) flagsChanged:(NSEvent*)event
+{
+	if (puglview->specialFunc) {
+		const unsigned mods = getModifiers(puglview, event);
+		if ((mods & PUGL_MOD_SHIFT) != (puglview->mods & PUGL_MOD_SHIFT)) {
+			puglview->specialFunc(puglview, mods & PUGL_MOD_SHIFT, PUGL_KEY_SHIFT);
+		} else if ((mods & PUGL_MOD_CTRL) != (puglview->mods & PUGL_MOD_CTRL)) {
+			puglview->specialFunc(puglview, mods & PUGL_MOD_CTRL, PUGL_KEY_CTRL);
+		} else if ((mods & PUGL_MOD_ALT) != (puglview->mods & PUGL_MOD_ALT)) {
+			puglview->specialFunc(puglview, mods & PUGL_MOD_ALT, PUGL_KEY_ALT);
+		} else if ((mods & PUGL_MOD_SUPER) != (puglview->mods & PUGL_MOD_SUPER)) {
+			puglview->specialFunc(puglview, mods & PUGL_MOD_SUPER, PUGL_KEY_SUPER);
+		}
+		puglview->mods = mods;
+	}
+}
+
+@end
+
+struct PuglInternalsImpl {
+	PuglOpenGLView* glview;
+	id              window;
+};
+
+PuglView*
+puglCreate(PuglNativeWindow parent,
+           const char*      title,
+           int              width,
+           int              height,
+           bool             resizable,
+           bool             visible)
+{
+	PuglView*      view = (PuglView*)calloc(1, sizeof(PuglView));
+	PuglInternals* impl = (PuglInternals*)calloc(1, sizeof(PuglInternals));
+	if (!view || !impl) {
+		return NULL;
+	}
+
+	view->impl   = impl;
+	view->width  = width;
+	view->height = height;
+
+	[NSAutoreleasePool new];
+	[NSApplication sharedApplication];
+
+	NSString* titleString = [[NSString alloc]
+		                        initWithBytes:title
+		                               length:strlen(title)
+		                             encoding:NSUTF8StringEncoding];
+
+	id window = [[PuglWindow new]retain];
+
+	[window setPuglview:view];
+	[window setTitle:titleString];
+
+	impl->glview       = [PuglOpenGLView new];
+	impl->window     = window;
+	impl->glview->puglview = view;
+
+	[window setContentView:impl->glview];
+	[NSApp activateIgnoringOtherApps:YES];
+	[window makeFirstResponder:impl->glview];
+	[window makeKeyAndOrderFront:window];
+
+	if (! visible) {
+		[window setIsVisible:NO];
+	}
+
+	return view;
+}
+
+void
+puglDestroy(PuglView* view)
+{
+	view->impl->glview->puglview = NULL;
+	[view->impl->window close];
+	[view->impl->glview release];
+	[view->impl->window release];
+	free(view->impl);
+	free(view);
+}
+
+PuglStatus
+puglProcessEvents(PuglView* view)
+{
+	[view->impl->glview setNeedsDisplay: YES];
+
+	NSAutoreleasePool* pool = [[NSAutoreleasePool alloc] init];
+	NSEvent* event;
+
+	for (;;) {
+		event = [view->impl->window
+			   nextEventMatchingMask:NSAnyEventMask
+			               untilDate:[NSDate distantPast]
+			                  inMode:NSDefaultRunLoopMode
+			                 dequeue:YES];
+
+		if (event == nil)
+			break;
+
+		[view->impl->window sendEvent: event];
+	}
+	
+	[pool release];
+
+	return PUGL_SUCCESS;
+}
+
+void
+puglPostRedisplay(PuglView* view)
+{
+	view->redisplay = true;
+}
+
+PuglNativeWindow
+puglGetNativeWindow(PuglView* view)
+{
+	return (PuglNativeWindow)view->impl->glview;
+}

dgl/src/pugl/pugl_osx_extended.h

@@ -0,0 +1,29 @@
+/*
+  Copyright 2012 David Robillard <http://drobilla.net>
+  Copyright 2013 Filipe Coelho <falktx@falktx.com>
+
+  Permission to use, copy, modify, and/or distribute this software for any
+  purpose with or without fee is hereby granted, provided that the above
+  copyright notice and this permission notice appear in all copies.
+
+  THIS SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+  WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+  MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+  ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+  WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+  ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+  OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+*/
+
+/**
+   @file pugl_osx_extended.h Extended OSX/Cocoa Pugl Implementation.
+*/
+
+#include <stdbool.h>
+
+#include "pugl.h"
+
+void puglImplFocus(PuglView* view);
+void puglImplSetSize(PuglView* view, unsigned int width, unsigned int height);
+void puglImplSetTitle(PuglView* view, const char* title);
+void puglImplSetVisible(PuglView* view, bool yesNo);

dgl/src/pugl/pugl_osx_extended.m

@@ -0,0 +1,64 @@
+/*
+  Copyright 2012 David Robillard <http://drobilla.net>
+  Copyright 2013 Filipe Coelho <falktx@falktx.com>
+
+  Permission to use, copy, modify, and/or distribute this software for any
+  purpose with or without fee is hereby granted, provided that the above
+  copyright notice and this permission notice appear in all copies.
+
+  THIS SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+  WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+  MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+  ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+  WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+  ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+  OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+*/
+
+/**
+   @file pugl_osx_extended.m Extended OSX/Cocoa Pugl Implementation.
+*/
+
+#import "pugl_osx.m"
+
+#include "pugl_osx_extended.h"
+
+void puglImplFocus(PuglView* view)
+{
+    // TODO
+}
+
+void puglImplSetSize(PuglView* view, unsigned int width, unsigned int height)
+{
+    //id window = view->impl->window;
+
+    // TODO
+    //NSRect frame = [window frame];
+    //frame.size.width  = width;
+    //frame.size.height = height;
+
+    // display:NO ?
+    //[window setFrame:frame display:YES animate:NO];
+}
+
+void puglImplSetTitle(PuglView* view, const char* title)
+{
+    id window = view->impl->window;
+
+    NSString* titleString = [[NSString alloc]
+                              initWithBytes:title
+                                     length:strlen(title)
+                                   encoding:NSUTF8StringEncoding];
+
+    [window setTitle:titleString];
+}
+
+void puglImplSetVisible(PuglView* view, bool yesNo)
+{
+    id window = view->impl->window;
+
+    if (yesNo)
+        [window setIsVisible:YES];
+    else
+        [window setIsVisible:NO];
+}

dgl/src/pugl/pugl_win.cpp

@@ -0,0 +1,374 @@
+/*
+  Copyright 2012 David Robillard <http://drobilla.net>
+
+  Permission to use, copy, modify, and/or distribute this software for any
+  purpose with or without fee is hereby granted, provided that the above
+  copyright notice and this permission notice appear in all copies.
+
+  THIS SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+  WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+  MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+  ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+  WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+  ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+  OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+*/
+
+/**
+   @file pugl_win.cpp Windows/WGL Pugl Implementation.
+*/
+
+#include <windows.h>
+#include <windowsx.h>
+#include <GL/gl.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "pugl_internal.h"
+
+#ifndef WM_MOUSEWHEEL
+#    define WM_MOUSEWHEEL 0x020A
+#endif
+#ifndef WM_MOUSEHWHEEL
+#    define WM_MOUSEHWHEEL 0x020E
+#endif
+#ifndef WHEEL_DELTA
+#    define WHEEL_DELTA 120
+#endif
+
+const int LOCAL_CLOSE_MSG = WM_USER + 50;
+
+struct PuglInternalsImpl {
+	HWND     hwnd;
+	HDC      hdc;
+	HGLRC    hglrc;
+	WNDCLASS wc;
+};
+
+LRESULT CALLBACK
+wndProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam);
+
+PuglView*
+puglCreate(PuglNativeWindow parent,
+           const char*      title,
+           int              width,
+           int              height,
+           bool             resizable,
+           bool             visible)
+{
+	PuglView*      view = (PuglView*)calloc(1, sizeof(PuglView));
+	PuglInternals* impl = (PuglInternals*)calloc(1, sizeof(PuglInternals));
+	if (!view || !impl) {
+		return NULL;
+	}
+
+	view->impl   = impl;
+	view->width  = width;
+	view->height = height;
+
+	// FIXME: This is nasty, and pugl should not have static anything.
+	// Should class be a parameter?  Does this make sense on other platforms?
+	static int wc_count = 0;
+	char classNameBuf[256];
+	_snprintf(classNameBuf, sizeof(classNameBuf), "%s_%d\n", title, wc_count++);
+
+	impl->wc.style         = CS_OWNDC;
+	impl->wc.lpfnWndProc   = wndProc;
+	impl->wc.cbClsExtra    = 0;
+	impl->wc.cbWndExtra    = 0;
+	impl->wc.hInstance     = 0;
+	impl->wc.hIcon         = LoadIcon(NULL, IDI_APPLICATION);
+	impl->wc.hCursor       = LoadCursor(NULL, IDC_ARROW);
+	impl->wc.hbrBackground = (HBRUSH)GetStockObject(BLACK_BRUSH);
+	impl->wc.lpszMenuName  = NULL;
+	impl->wc.lpszClassName = classNameBuf;
+	RegisterClass(&impl->wc);
+
+	int winFlags = WS_POPUPWINDOW | WS_CAPTION;
+	if (resizable) {
+		winFlags |= WS_SIZEBOX;
+	}
+
+	// Adjust the overall window size to accomodate our requested client size
+	RECT wr = { 0, 0, width, height };
+	AdjustWindowRectEx(&wr, winFlags, FALSE, WS_EX_TOPMOST);
+
+	impl->hwnd = CreateWindowEx(
+		WS_EX_TOPMOST,
+		classNameBuf, title,
+		(visible ? WS_VISIBLE : 0) | (parent ? WS_CHILD : winFlags),
+		0, 0, wr.right-wr.left, wr.bottom-wr.top,
+		(HWND)parent, NULL, NULL, NULL);
+
+	if (!impl->hwnd) {
+		free(impl);
+		free(view);
+		return NULL;
+	}
+		
+	SetWindowLongPtr(impl->hwnd, GWL_USERDATA, (LONG)view);
+
+	impl->hdc = GetDC(impl->hwnd);
+
+	PIXELFORMATDESCRIPTOR pfd;
+	ZeroMemory(&pfd, sizeof(pfd));
+	pfd.nSize      = sizeof(pfd);
+	pfd.nVersion   = 1;
+	pfd.dwFlags    = PFD_DRAW_TO_WINDOW | PFD_SUPPORT_OPENGL | PFD_DOUBLEBUFFER;
+	pfd.iPixelType = PFD_TYPE_RGBA;
+	pfd.cColorBits = 24;
+	pfd.cDepthBits = 16;
+	pfd.iLayerType = PFD_MAIN_PLANE;
+
+	int format = ChoosePixelFormat(impl->hdc, &pfd);
+	SetPixelFormat(impl->hdc, format, &pfd);
+
+	impl->hglrc = wglCreateContext(impl->hdc);
+	wglMakeCurrent(impl->hdc, impl->hglrc);
+
+	view->width  = width;
+	view->height = height;
+
+	return view;
+}
+
+void
+puglDestroy(PuglView* view)
+{
+	wglMakeCurrent(NULL, NULL);
+	wglDeleteContext(view->impl->hglrc);
+	ReleaseDC(view->impl->hwnd, view->impl->hdc);
+	DestroyWindow(view->impl->hwnd);
+	UnregisterClass(view->impl->wc.lpszClassName, NULL);
+	free(view->impl);
+	free(view);
+}
+
+static void
+puglReshape(PuglView* view, int width, int height)
+{
+	wglMakeCurrent(view->impl->hdc, view->impl->hglrc);
+
+	if (view->reshapeFunc) {
+		view->reshapeFunc(view, width, height);
+	} else {
+		puglDefaultReshape(view, width, height);
+	}
+
+	view->width  = width;
+	view->height = height;
+}
+
+void
+puglDisplay(PuglView* view)
+{
+	wglMakeCurrent(view->impl->hdc, view->impl->hglrc);
+	glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+	glLoadIdentity();
+
+	if (view->displayFunc) {
+		view->displayFunc(view);
+	}
+
+	glFlush();
+	SwapBuffers(view->impl->hdc);
+	view->redisplay = false;
+}
+
+static PuglKey
+keySymToSpecial(int sym)
+{
+	switch (sym) {
+	case VK_F1:      return PUGL_KEY_F1;
+	case VK_F2:      return PUGL_KEY_F2;
+	case VK_F3:      return PUGL_KEY_F3;
+	case VK_F4:      return PUGL_KEY_F4;
+	case VK_F5:      return PUGL_KEY_F5;
+	case VK_F6:      return PUGL_KEY_F6;
+	case VK_F7:      return PUGL_KEY_F7;
+	case VK_F8:      return PUGL_KEY_F8;
+	case VK_F9:      return PUGL_KEY_F9;
+	case VK_F10:     return PUGL_KEY_F10;
+	case VK_F11:     return PUGL_KEY_F11;
+	case VK_F12:     return PUGL_KEY_F12;
+	case VK_LEFT:    return PUGL_KEY_LEFT;
+	case VK_UP:      return PUGL_KEY_UP;
+	case VK_RIGHT:   return PUGL_KEY_RIGHT;
+	case VK_DOWN:    return PUGL_KEY_DOWN;
+	case VK_PRIOR:   return PUGL_KEY_PAGE_UP;
+	case VK_NEXT:    return PUGL_KEY_PAGE_DOWN;
+	case VK_HOME:    return PUGL_KEY_HOME;
+	case VK_END:     return PUGL_KEY_END;
+	case VK_INSERT:  return PUGL_KEY_INSERT;
+	case VK_SHIFT:   return PUGL_KEY_SHIFT;
+	case VK_CONTROL: return PUGL_KEY_CTRL;
+	case VK_MENU:    return PUGL_KEY_ALT;
+	case VK_LWIN:    return PUGL_KEY_SUPER;
+	case VK_RWIN:    return PUGL_KEY_SUPER;
+	}
+	return (PuglKey)0;
+}
+
+static void
+processMouseEvent(PuglView* view, int button, bool press, LPARAM lParam)
+{
+	view->event_timestamp_ms = GetMessageTime();
+	if (press) {
+		SetCapture(view->impl->hwnd);
+	} else {
+		ReleaseCapture();
+	}
+	
+	if (view->mouseFunc) {
+		view->mouseFunc(view, button, press,
+		                GET_X_LPARAM(lParam),
+		                GET_Y_LPARAM(lParam));
+	}
+}
+
+static void
+setModifiers(PuglView* view)
+{
+	view->mods = 0;
+	view->mods |= (GetKeyState(VK_SHIFT)   < 0) ? PUGL_MOD_SHIFT  : 0;
+	view->mods |= (GetKeyState(VK_CONTROL) < 0) ? PUGL_MOD_CTRL   : 0;
+	view->mods |= (GetKeyState(VK_MENU)    < 0) ? PUGL_MOD_ALT    : 0;
+	view->mods |= (GetKeyState(VK_LWIN)    < 0) ? PUGL_MOD_SUPER  : 0;
+	view->mods |= (GetKeyState(VK_RWIN)    < 0) ? PUGL_MOD_SUPER  : 0;
+}
+
+static LRESULT
+handleMessage(PuglView* view, UINT message, WPARAM wParam, LPARAM lParam)
+{
+	PAINTSTRUCT ps;
+	PuglKey     key;
+
+	setModifiers(view);
+	switch (message) {
+	case WM_CREATE:
+	case WM_SHOWWINDOW:
+	case WM_SIZE:
+		RECT rect; 
+		GetClientRect(view->impl->hwnd, &rect);
+		puglReshape(view, rect.right, rect.bottom);
+		view->width = rect.right;
+		view->height = rect.bottom;
+		break;
+	case WM_PAINT:
+		BeginPaint(view->impl->hwnd, &ps);
+		puglDisplay(view);
+		EndPaint(view->impl->hwnd, &ps);
+		break;
+	case WM_MOUSEMOVE:
+		if (view->motionFunc) {
+			view->motionFunc(view, GET_X_LPARAM(lParam), GET_Y_LPARAM(lParam));
+		}
+		break;
+	case WM_LBUTTONDOWN:
+		processMouseEvent(view, 1, true, lParam);
+		break;
+	case WM_MBUTTONDOWN:
+		processMouseEvent(view, 2, true, lParam);
+		break;
+	case WM_RBUTTONDOWN:
+		processMouseEvent(view, 3, true, lParam);
+		break;
+	case WM_LBUTTONUP:
+		processMouseEvent(view, 1, false, lParam);
+		break;
+	case WM_MBUTTONUP:
+		processMouseEvent(view, 2, false, lParam);
+		break;
+	case WM_RBUTTONUP:
+		processMouseEvent(view, 3, false, lParam);
+		break;
+	case WM_MOUSEWHEEL:
+		if (view->scrollFunc) {
+			view->scrollFunc(
+				view, 0, (int16_t)HIWORD(wParam) / (float)WHEEL_DELTA);
+		}
+		break;
+	case WM_MOUSEHWHEEL:
+		if (view->scrollFunc) {
+			view->scrollFunc(
+				view, (int16_t)HIWORD(wParam) / float(WHEEL_DELTA), 0);
+		}
+		break;
+	case WM_KEYDOWN:
+		view->event_timestamp_ms = (GetMessageTime());
+		if (view->ignoreKeyRepeat && (lParam & (1 << 30))) {
+			break;
+		} // else nobreak
+	case WM_KEYUP:
+		if ((key = keySymToSpecial(wParam))) {
+			if (view->specialFunc) {
+				view->specialFunc(view, message == WM_KEYDOWN, key);
+			}
+		} else if (view->keyboardFunc) {
+			view->keyboardFunc(view, message == WM_KEYDOWN, wParam);
+		}
+		break;
+	case WM_QUIT:
+	case LOCAL_CLOSE_MSG:
+		if (view->closeFunc) {
+			view->closeFunc(view);
+		}
+		break;
+	default:
+		return DefWindowProc(
+			view->impl->hwnd, message, wParam, lParam);
+	}
+
+	return 0;
+}
+
+PuglStatus
+puglProcessEvents(PuglView* view)
+{
+	MSG msg;
+	while (PeekMessage(&msg, view->impl->hwnd, 0, 0, PM_REMOVE)) {
+		handleMessage(view, msg.message, msg.wParam, msg.lParam);
+	}
+
+
+	if (view->redisplay) {
+		InvalidateRect(view->impl->hwnd, NULL, FALSE);
+	}
+
+	return PUGL_SUCCESS;
+}
+
+LRESULT CALLBACK
+wndProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
+{
+	PuglView* view = (PuglView*)GetWindowLongPtr(hwnd, GWL_USERDATA);
+	switch (message) {
+	case WM_CREATE:
+		PostMessage(hwnd, WM_SHOWWINDOW, TRUE, 0);
+		return 0;
+	case WM_CLOSE:
+		PostMessage(hwnd, LOCAL_CLOSE_MSG, wParam, lParam);
+		return 0;
+	case WM_DESTROY:
+		return 0;
+	default:
+		if (view) {
+			return handleMessage(view, message, wParam, lParam);
+		} else {
+			return DefWindowProc(hwnd, message, wParam, lParam);
+		}
+	}
+}
+
+void
+puglPostRedisplay(PuglView* view)
+{
+	view->redisplay = true;
+}
+
+PuglNativeWindow
+puglGetNativeWindow(PuglView* view)
+{
+	return (PuglNativeWindow)view->impl->hwnd;
+}

dgl/src/pugl/pugl_x11.c

@@ -0,0 +1,414 @@
+/*
+  Copyright 2012 David Robillard <http://drobilla.net>
+  Copyright 2011-2012 Ben Loftis, Harrison Consoles
+  Copyright 2013 Robin Gareus <robin@gareus.org>
+
+  Permission to use, copy, modify, and/or distribute this software for any
+  purpose with or without fee is hereby granted, provided that the above
+  copyright notice and this permission notice appear in all copies.
+
+  THIS SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+  WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+  MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+  ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+  WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+  ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+  OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+*/
+
+/**
+   @file pugl_x11.c X11 Pugl Implementation.
+*/
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <GL/gl.h>
+#include <GL/glx.h>
+#include <X11/Xatom.h>
+#include <X11/Xlib.h>
+#include <X11/keysym.h>
+
+#include "pugl_internal.h"
+
+/* work around buggy re-parent & focus issues on some systems
+ * where no keyboard events are passed through even if the
+ * app has mouse-focus and all other events are working.
+ */
+//#define XKEYFOCUSGRAB
+
+/* show messages during initalization
+ */
+//#define VERBOSE_PUGL
+
+struct PuglInternalsImpl {
+	Display*   display;
+	int        screen;
+	Window     win;
+	GLXContext ctx;
+	Bool       doubleBuffered;
+};
+
+/**
+   Attributes for single-buffered RGBA with at least
+   4 bits per color and a 16 bit depth buffer.
+*/
+static int attrListSgl[] = {
+	GLX_RGBA,
+	GLX_RED_SIZE, 4,
+	GLX_GREEN_SIZE, 4,
+	GLX_BLUE_SIZE, 4,
+	GLX_DEPTH_SIZE, 16,
+	None
+};
+
+/**
+   Attributes for double-buffered RGBA with at least
+   4 bits per color and a 16 bit depth buffer.
+*/
+static int attrListDbl[] = {
+	GLX_RGBA, GLX_DOUBLEBUFFER,
+	GLX_RED_SIZE, 4,
+	GLX_GREEN_SIZE, 4,
+	GLX_BLUE_SIZE, 4,
+	GLX_DEPTH_SIZE, 16,
+	None
+};
+
+PuglView*
+puglCreate(PuglNativeWindow parent,
+           const char*      title,
+           int              width,
+           int              height,
+           bool             resizable,
+           bool             visible)
+{
+	PuglView*      view = (PuglView*)calloc(1, sizeof(PuglView));
+	PuglInternals* impl = (PuglInternals*)calloc(1, sizeof(PuglInternals));
+	if (!view || !impl) {
+		return NULL;
+	}
+
+	view->impl   = impl;
+	view->width  = width;
+	view->height = height;
+
+	impl->display = XOpenDisplay(0);
+	impl->screen  = DefaultScreen(impl->display);
+
+	XVisualInfo* vi = glXChooseVisual(impl->display, impl->screen, attrListDbl);
+	if (!vi) {
+		vi = glXChooseVisual(impl->display, impl->screen, attrListSgl);
+		impl->doubleBuffered = False;
+#ifdef VERBOSE_PUGL
+		printf("puGL: singlebuffered rendering will be used, no doublebuffering available\n");
+#endif
+	} else {
+		impl->doubleBuffered = True;
+#ifdef VERBOSE_PUGL
+		printf("puGL: doublebuffered rendering available\n");
+#endif
+	}
+
+	int glxMajor, glxMinor;
+	glXQueryVersion(impl->display, &glxMajor, &glxMinor);
+#ifdef VERBOSE_PUGL
+	printf("puGL: GLX-Version : %d.%d\n", glxMajor, glxMinor);
+#endif
+
+	impl->ctx = glXCreateContext(impl->display, vi, 0, GL_TRUE);
+
+	Window xParent = parent
+		? (Window)parent
+		: RootWindow(impl->display, impl->screen);
+
+	Colormap cmap = XCreateColormap(
+		impl->display, xParent, vi->visual, AllocNone);
+
+	XSetWindowAttributes attr;
+	memset(&attr, 0, sizeof(XSetWindowAttributes));
+	attr.colormap     = cmap;
+	attr.border_pixel = 0;
+
+	attr.event_mask = ExposureMask | KeyPressMask | KeyReleaseMask
+		| ButtonPressMask | ButtonReleaseMask
+#ifdef XKEYFOCUSGRAB
+		| EnterWindowMask
+#endif
+		| PointerMotionMask | StructureNotifyMask;
+
+	impl->win = XCreateWindow(
+		impl->display, xParent,
+		0, 0, view->width, view->height, 0, vi->depth, InputOutput, vi->visual,
+		CWBorderPixel | CWColormap | CWEventMask, &attr);
+
+	XSizeHints sizeHints;
+	memset(&sizeHints, 0, sizeof(sizeHints));
+	if (!resizable) {
+		sizeHints.flags      = PMinSize|PMaxSize;
+		sizeHints.min_width  = width;
+		sizeHints.min_height = height;
+		sizeHints.max_width  = width;
+		sizeHints.max_height = height;
+		XSetNormalHints(impl->display, impl->win, &sizeHints);
+	}
+
+	if (title) {
+		XStoreName(impl->display, impl->win, title);
+	}
+
+	if (!parent) {
+		Atom wmDelete = XInternAtom(impl->display, "WM_DELETE_WINDOW", True);
+		XSetWMProtocols(impl->display, impl->win, &wmDelete, 1);
+	}
+
+	if (visible) {
+		XMapRaised(impl->display, impl->win);
+	}
+
+	if (glXIsDirect(impl->display, impl->ctx)) {
+#ifdef VERBOSE_PUGL
+		printf("puGL: DRI enabled\n");
+#endif
+	} else {
+#ifdef VERBOSE_PUGL
+		printf("puGL: No DRI available\n");
+#endif
+	}
+
+	XFree(vi);
+
+	return view;
+}
+
+void
+puglDestroy(PuglView* view)
+{
+	if (!view) {
+		return;
+	}
+
+	glXDestroyContext(view->impl->display, view->impl->ctx);
+	XDestroyWindow(view->impl->display, view->impl->win);
+	XCloseDisplay(view->impl->display);
+	free(view->impl);
+	free(view);
+}
+
+static void
+puglReshape(PuglView* view, int width, int height)
+{
+	glXMakeCurrent(view->impl->display, view->impl->win, view->impl->ctx);
+
+	if (view->reshapeFunc) {
+		view->reshapeFunc(view, width, height);
+	} else {
+		puglDefaultReshape(view, width, height);
+	}
+
+	view->width  = width;
+	view->height = height;
+}
+
+static void
+puglDisplay(PuglView* view)
+{
+	glXMakeCurrent(view->impl->display, view->impl->win, view->impl->ctx);
+	glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+	glLoadIdentity();
+
+	if (view->displayFunc) {
+		view->displayFunc(view);
+	}
+
+	glFlush();
+	if (view->impl->doubleBuffered) {
+		glXSwapBuffers(view->impl->display, view->impl->win);
+	}
+
+	view->redisplay = false;
+}
+
+static PuglKey
+keySymToSpecial(KeySym sym)
+{
+	switch (sym) {
+	case XK_F1:        return PUGL_KEY_F1;
+	case XK_F2:        return PUGL_KEY_F2;
+	case XK_F3:        return PUGL_KEY_F3;
+	case XK_F4:        return PUGL_KEY_F4;
+	case XK_F5:        return PUGL_KEY_F5;
+	case XK_F6:        return PUGL_KEY_F6;
+	case XK_F7:        return PUGL_KEY_F7;
+	case XK_F8:        return PUGL_KEY_F8;
+	case XK_F9:        return PUGL_KEY_F9;
+	case XK_F10:       return PUGL_KEY_F10;
+	case XK_F11:       return PUGL_KEY_F11;
+	case XK_F12:       return PUGL_KEY_F12;
+	case XK_Left:      return PUGL_KEY_LEFT;
+	case XK_Up:        return PUGL_KEY_UP;
+	case XK_Right:     return PUGL_KEY_RIGHT;
+	case XK_Down:      return PUGL_KEY_DOWN;
+	case XK_Page_Up:   return PUGL_KEY_PAGE_UP;
+	case XK_Page_Down: return PUGL_KEY_PAGE_DOWN;
+	case XK_Home:      return PUGL_KEY_HOME;
+	case XK_End:       return PUGL_KEY_END;
+	case XK_Insert:    return PUGL_KEY_INSERT;
+	case XK_Shift_L:   return PUGL_KEY_SHIFT;
+	case XK_Shift_R:   return PUGL_KEY_SHIFT;
+	case XK_Control_L: return PUGL_KEY_CTRL;
+	case XK_Control_R: return PUGL_KEY_CTRL;
+	case XK_Alt_L:     return PUGL_KEY_ALT;
+	case XK_Alt_R:     return PUGL_KEY_ALT;
+	case XK_Super_L:   return PUGL_KEY_SUPER;
+	case XK_Super_R:   return PUGL_KEY_SUPER;
+	}
+	return (PuglKey)0;
+}
+
+static void
+setModifiers(PuglView* view, unsigned xstate, unsigned xtime)
+{
+	view->event_timestamp_ms = xtime;
+
+	view->mods = 0;
+	view->mods |= (xstate & ShiftMask)   ? PUGL_MOD_SHIFT  : 0;
+	view->mods |= (xstate & ControlMask) ? PUGL_MOD_CTRL   : 0;
+	view->mods |= (xstate & Mod1Mask)    ? PUGL_MOD_ALT    : 0;
+	view->mods |= (xstate & Mod4Mask)    ? PUGL_MOD_SUPER  : 0;
+}
+
+PuglStatus
+puglProcessEvents(PuglView* view)
+{
+	XEvent event;
+	while (XPending(view->impl->display) > 0) {
+		XNextEvent(view->impl->display, &event);
+		switch (event.type) {
+		case MapNotify:
+			puglReshape(view, view->width, view->height);
+			break;
+		case ConfigureNotify:
+			if ((event.xconfigure.width != view->width) ||
+			    (event.xconfigure.height != view->height)) {
+				puglReshape(view,
+				            event.xconfigure.width,
+				            event.xconfigure.height);
+			}
+			break;
+		case Expose:
+			if (event.xexpose.count != 0) {
+				break;
+			}
+			puglDisplay(view);
+			break;
+		case MotionNotify:
+			setModifiers(view, event.xmotion.state, event.xmotion.time);
+			if (view->motionFunc) {
+				view->motionFunc(view, event.xmotion.x, event.xmotion.y);
+			}
+			break;
+		case ButtonPress:
+			setModifiers(view, event.xbutton.state, event.xbutton.time);
+			if (event.xbutton.button >= 4 && event.xbutton.button <= 7) {
+				if (view->scrollFunc) {
+					float dx = 0, dy = 0;
+					switch (event.xbutton.button) {
+					case 4: dy =  1.0f; break;
+					case 5: dy = -1.0f; break;
+					case 6: dx = -1.0f; break;
+					case 7: dx =  1.0f; break;
+					}
+					view->scrollFunc(view, dx, dy);
+				}
+				break;
+			}
+			// nobreak
+		case ButtonRelease:
+			setModifiers(view, event.xbutton.state, event.xbutton.time);
+			if (view->mouseFunc &&
+			    (event.xbutton.button < 4 || event.xbutton.button > 7)) {
+				view->mouseFunc(view,
+				                event.xbutton.button, event.type == ButtonPress,
+				                event.xbutton.x, event.xbutton.y);
+			}
+			break;
+		case KeyPress: {
+			setModifiers(view, event.xkey.state, event.xkey.time);
+			KeySym  sym;
+			char    str[5];
+			int     n   = XLookupString(&event.xkey, str, 4, &sym, NULL);
+			PuglKey key = keySymToSpecial(sym);
+			if (!key && view->keyboardFunc) {
+				if (n == 1) {
+					view->keyboardFunc(view, true, str[0]);
+				} else {
+					fprintf(stderr, "warning: Unknown key %X\n", (int)sym);
+				}
+			} else if (view->specialFunc) {
+				view->specialFunc(view, true, key);
+			}
+		} break;
+		case KeyRelease: {
+			setModifiers(view, event.xkey.state, event.xkey.time);
+			bool repeated = false;
+			if (view->ignoreKeyRepeat &&
+			    XEventsQueued(view->impl->display, QueuedAfterReading)) {
+				XEvent next;
+				XPeekEvent(view->impl->display, &next);
+				if (next.type == KeyPress &&
+				    next.xkey.time == event.xkey.time &&
+				    next.xkey.keycode == event.xkey.keycode) {
+					XNextEvent(view->impl->display, &event);
+					repeated = true;
+				}
+			}
+
+			if (!repeated && view->keyboardFunc) {
+				KeySym sym = XLookupKeysym(&event.xkey, 0);
+				PuglKey special = keySymToSpecial(sym);
+				if (!special) {
+					view->keyboardFunc(view, false, sym);
+				} else if (view->specialFunc) {
+					view->specialFunc(view, false, special);
+				}
+			}
+		} break;
+		case ClientMessage:
+			if (!strcmp(XGetAtomName(view->impl->display,
+			                         event.xclient.message_type),
+			            "WM_PROTOCOLS")) {
+				if (view->closeFunc) {
+					view->closeFunc(view);
+				}
+			}
+			break;
+#ifdef XKEYFOCUSGRAB
+		case EnterNotify:
+			XSetInputFocus(view->impl->display, view->impl->win, RevertToPointerRoot, CurrentTime);
+			break;
+#endif
+		default:
+			break;
+		}
+	}
+
+	if (view->redisplay) {
+		puglDisplay(view);
+	}
+
+	return PUGL_SUCCESS;
+}
+
+void
+puglPostRedisplay(PuglView* view)
+{
+	view->redisplay = true;
+}
+
+PuglNativeWindow
+puglGetNativeWindow(PuglView* view)
+{
+	return view->impl->win;
+}

distrho/DistrhoPlugin.hpp

@@ -0,0 +1,239 @@
+/*
+ * DISTRHO Plugin Toolkit (DPT)
+ * Copyright (C) 2012-2013 Filipe Coelho <falktx@falktx.com>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any purpose with
+ * or without fee is hereby granted, provided that the above copyright notice and this
+ * permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD
+ * TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN
+ * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+ * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
+ * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef DISTRHO_PLUGIN_HPP_INCLUDED
+#define DISTRHO_PLUGIN_HPP_INCLUDED
+
+#include "DistrhoUtils.hpp"
+
+START_NAMESPACE_DISTRHO
+
+// -----------------------------------------------------------------------
+// Parameter Hints
+
+const uint32_t PARAMETER_IS_AUTOMABLE   = 1 << 0;
+const uint32_t PARAMETER_IS_BOOLEAN     = 1 << 1;
+const uint32_t PARAMETER_IS_INTEGER     = 1 << 2;
+const uint32_t PARAMETER_IS_LOGARITHMIC = 1 << 3;
+const uint32_t PARAMETER_IS_OUTPUT      = 1 << 4;
+
+// -----------------------------------------------------------------------
+// Parameter Ranges
+
+struct ParameterRanges {
+    float def;
+    float min;
+    float max;
+
+    ParameterRanges() noexcept
+        : def(0.0f),
+          min(0.0f),
+          max(1.0f) {}
+
+    ParameterRanges(float def, float min, float max) noexcept
+    {
+        this->def = def;
+        this->min = min;
+        this->max = max;
+    }
+
+    void clear() noexcept
+    {
+        def = 0.0f;
+        min = 0.0f;
+        max = 1.0f;
+    }
+
+    void fixValue(float& value) const noexcept
+    {
+        if (value < min)
+            value = min;
+        else if (value > max)
+            value = max;
+    }
+
+    float getFixedValue(const float& value) const noexcept
+    {
+        if (value < min)
+            return min;
+        else if (value > max)
+            return max;
+        return value;
+    }
+
+    float getNormalizedValue(const float& value) const noexcept
+    {
+        const float newValue((value - min) / (max - min));
+
+        if (newValue <= 0.0f)
+            return 0.0f;
+        if (newValue >= 1.0f)
+            return 1.0f;
+        return newValue;
+    }
+
+    float getUnnormalizedValue(const float& value) const noexcept
+    {
+        return value * (max - min) + min;
+    }
+};
+
+// -----------------------------------------------------------------------
+// Parameter
+
+struct Parameter {
+    uint32_t hints;
+    d_string name;
+    d_string symbol;
+    d_string unit;
+    ParameterRanges ranges;
+
+    Parameter()
+        : hints(0x0) {}
+
+    void clear() noexcept
+    {
+        hints  = 0x0;
+        name   = "";
+        symbol = "";
+        unit   = "";
+        ranges.clear();
+    }
+};
+
+// -----------------------------------------------------------------------
+// MidiEvent
+
+struct MidiEvent {
+    uint32_t frame;
+    uint8_t  size;
+    uint8_t  buf[4];
+
+    void clear() noexcept
+    {
+        frame  = 0;
+        size   = 0;
+        buf[0] = 0;
+        buf[1] = 0;
+        buf[2] = 0;
+        buf[3] = 0;
+    }
+};
+
+// -----------------------------------------------------------------------
+// TimePos
+
+struct TimePos {
+    bool playing;
+    uint64_t frame;
+    double bpm;
+
+    TimePos() noexcept
+        : playing(false),
+          frame(0),
+          bpm(120.0) {}
+};
+
+// -----------------------------------------------------------------------
+// Plugin
+
+class Plugin
+{
+public:
+    Plugin(uint32_t parameterCount, uint32_t programCount, uint32_t stateCount);
+    virtual ~Plugin();
+
+    // -------------------------------------------------------------------
+    // Host state
+
+    uint32_t       d_getBufferSize() const noexcept;
+    double         d_getSampleRate() const noexcept;
+#if DISTRHO_PLUGIN_WANT_TIMEPOS
+    const TimePos& d_getTimePos()    const noexcept;
+#endif
+#if DISTRHO_PLUGIN_WANT_LATENCY
+    void           d_setLatency(uint32_t frames) noexcept;
+#endif
+
+protected:
+    // -------------------------------------------------------------------
+    // Information
+
+    virtual const char* d_getName()     const noexcept { return DISTRHO_PLUGIN_NAME; }
+    virtual const char* d_getLabel()    const noexcept = 0;
+    virtual const char* d_getMaker()    const noexcept = 0;
+    virtual const char* d_getLicense()  const noexcept = 0;
+    virtual uint32_t    d_getVersion()  const noexcept = 0;
+    virtual long        d_getUniqueId() const noexcept = 0;
+
+    // -------------------------------------------------------------------
+    // Init
+
+    virtual void d_initParameter(uint32_t index, Parameter& parameter) = 0;
+#if DISTRHO_PLUGIN_WANT_PROGRAMS
+    virtual void d_initProgramName(uint32_t index, d_string& programName) = 0;
+#endif
+#if DISTRHO_PLUGIN_WANT_STATE
+    virtual void d_initStateKey(uint32_t index, d_string& stateKey) = 0;
+#endif
+
+    // -------------------------------------------------------------------
+    // Internal data
+
+    virtual float d_getParameterValue(uint32_t index) const = 0;
+    virtual void  d_setParameterValue(uint32_t index, float value) = 0;
+#if DISTRHO_PLUGIN_WANT_PROGRAMS
+    virtual void  d_setProgram(uint32_t index) = 0;
+#endif
+#if DISTRHO_PLUGIN_WANT_STATE
+    virtual void  d_setState(const char* key, const char* value) = 0;
+#endif
+
+    // -------------------------------------------------------------------
+    // Process
+
+    virtual void d_activate() {}
+    virtual void d_deactivate() {}
+#if DISTRHO_PLUGIN_IS_SYNTH
+    virtual void d_run(float** inputs, float** outputs, uint32_t frames, const MidiEvent* midiEvents, uint32_t midiEventCount) = 0;
+#else
+    virtual void d_run(float** inputs, float** outputs, uint32_t frames) = 0;
+#endif
+
+    // -------------------------------------------------------------------
+    // Callbacks (optional)
+
+    virtual void d_bufferSizeChanged(uint32_t newBufferSize);
+    virtual void d_sampleRateChanged(double newSampleRate);
+
+    // -------------------------------------------------------------------
+
+private:
+    struct PrivateData;
+    PrivateData* const pData;
+    friend class PluginExporter;
+};
+
+// -----------------------------------------------------------------------
+// Create plugin, entry point
+
+extern Plugin* createPlugin();
+
+// -----------------------------------------------------------------------
+
+END_NAMESPACE_DISTRHO
+
+#endif // DISTRHO_PLUGIN_HPP_INCLUDED

distrho/DistrhoPluginMain.cpp

@@ -0,0 +1,26 @@
+/*
+ * DISTRHO Plugin Toolkit (DPT)
+ * Copyright (C) 2012-2013 Filipe Coelho <falktx@falktx.com>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any purpose with
+ * or without fee is hereby granted, provided that the above copyright notice and this
+ * permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD
+ * TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN
+ * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+ * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
+ * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include "src/DistrhoPlugin.cpp"
+
+#if (defined(DISTRHO_PLUGIN_TARGET_LADSPA) || defined(DISTRHO_PLUGIN_TARGET_DSSI))
+# include "src/DistrhoPluginLADSPA+DSSI.cpp"
+#elif defined(DISTRHO_PLUGIN_TARGET_LV2)
+# include "src/DistrhoPluginLV2.cpp"
+# include "src/DistrhoPluginLV2export.cpp"
+#elif defined(DISTRHO_PLUGIN_TARGET_VST)
+# include "src/DistrhoPluginVST.cpp"
+#endif

distrho/DistrhoUI.hpp

@@ -0,0 +1,94 @@
+/*
+ * DISTRHO Plugin Toolkit (DPT)
+ * Copyright (C) 2012-2013 Filipe Coelho <falktx@falktx.com>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any purpose with
+ * or without fee is hereby granted, provided that the above copyright notice and this
+ * permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD
+ * TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN
+ * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+ * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
+ * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef DISTRHO_UI_HPP_INCLUDED
+#define DISTRHO_UI_HPP_INCLUDED
+
+#include "DistrhoUtils.hpp"
+
+#include "../dgl/Widget.hpp"
+
+START_NAMESPACE_DISTRHO
+
+// -----------------------------------------------------------------------
+// UI
+
+class UI : public DGL::Widget
+{
+public:
+    UI();
+    virtual ~UI();
+
+    // -------------------------------------------------------------------
+    // Host DSP State
+
+    double d_getSampleRate() const noexcept;
+    void   d_editParameter(uint32_t index, bool started);
+    void   d_setParameterValue(uint32_t index, float value);
+#if DISTRHO_PLUGIN_WANT_STATE
+    void   d_setState(const char* key, const char* value);
+#endif
+#if DISTRHO_PLUGIN_IS_SYNTH
+    void   d_sendNote(uint8_t channel, uint8_t note, uint8_t velocity);
+#endif
+
+    // -------------------------------------------------------------------
+    // Host UI State
+
+    void d_uiResize(unsigned int width, unsigned int height);
+
+protected:
+    // -------------------------------------------------------------------
+    // Basic Information
+
+    virtual const char*  d_getName()   const noexcept { return DISTRHO_PLUGIN_NAME; }
+    virtual unsigned int d_getWidth()  const noexcept = 0;
+    virtual unsigned int d_getHeight() const noexcept = 0;
+
+    // -------------------------------------------------------------------
+    // DSP Callbacks
+
+    virtual void d_parameterChanged(uint32_t index, float value) = 0;
+#if DISTRHO_PLUGIN_WANT_PROGRAMS
+    virtual void d_programChanged(uint32_t index) = 0;
+#endif
+#if DISTRHO_PLUGIN_WANT_STATE
+    virtual void d_stateChanged(const char* key, const char* value) = 0;
+#endif
+
+    // -------------------------------------------------------------------
+    // UI Callbacks (optional)
+
+    virtual void d_uiIdle() {}
+
+    // -------------------------------------------------------------------
+
+private:
+    struct PrivateData;
+    PrivateData* const pData;
+    friend class UIExporter;
+};
+
+// -----------------------------------------------------------------------
+// Create UI, entry point
+
+extern UI* createUI();
+
+// -----------------------------------------------------------------------
+
+END_NAMESPACE_DISTRHO
+
+#endif // DISTRHO_UI_HPP_INCLUDED

distrho/DistrhoUIMain.cpp

@@ -0,0 +1,25 @@
+/*
+ * DISTRHO Plugin Toolkit (DPT)
+ * Copyright (C) 2012-2013 Filipe Coelho <falktx@falktx.com>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any purpose with
+ * or without fee is hereby granted, provided that the above copyright notice and this
+ * permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD
+ * TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN
+ * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+ * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
+ * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include "src/DistrhoUI.cpp"
+
+#if defined(DISTRHO_PLUGIN_TARGET_DSSI)
+# include "src/DistrhoUIDSSI.cpp"
+#elif defined(DISTRHO_PLUGIN_TARGET_LV2)
+# include "src/DistrhoUILV2.cpp"
+#elif defined(DISTRHO_PLUGIN_TARGET_VST)
+// nothing
+#endif

distrho/DistrhoUtils.hpp

@@ -0,0 +1,684 @@
+/*
+ * DISTRHO Plugin Toolkit (DPT)
+ * Copyright (C) 2012-2013 Filipe Coelho <falktx@falktx.com>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any purpose with
+ * or without fee is hereby granted, provided that the above copyright notice and this
+ * permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD
+ * TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN
+ * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+ * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
+ * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef DISTRHO_UTILS_HPP_INCLUDED
+#define DISTRHO_UTILS_HPP_INCLUDED
+
+#include "src/DistrhoDefines.h"
+
+#include <cassert>
+#include <cstdarg>
+#include <cstdio>
+#include <cstdlib>
+#include <cstring>
+
+#ifdef PROPER_CPP11_SUPPORT
+# include <cstdint>
+#else
+# include <stdint.h>
+#endif
+
+#ifdef DISTRHO_OS_WINDOWS
+# include <windows.h>
+#else
+# include <unistd.h>
+#endif
+
+#if defined(DISTRHO_OS_MAC) && ! defined(CARLA_OS_MAC)
+namespace std {
+inline float
+  fmin(float __x, float __y)
+  { return __builtin_fminf(__x, __y); }
+inline float
+  fmax(float __x, float __y)
+  { return __builtin_fmaxf(__x, __y); }
+inline float
+  rint(float __x)
+  { return __builtin_rintf(__x); }
+}
+#endif
+
+// -----------------------------------------------------------------------
+// misc functions
+
+static inline
+long d_cconst(int a, int b, int c, int d) noexcept
+{
+    return (a << 24) | (b << 16) | (c << 8) | (d << 0);
+}
+
+// -----------------------------------------------------------------------
+// string print functions
+
+#ifndef DEBUG
+# define d_debug(...)
+#else
+static inline
+void d_debug(const char* const fmt, ...)
+{
+    va_list args;
+    va_start(args, fmt);
+    std::fprintf(stdout, "\x1b[30;1m");
+    std::vfprintf(stdout, fmt, args);
+    std::fprintf(stdout, "\x1b[0m\n");
+    va_end(args);
+}
+#endif
+
+static inline
+void d_stdout(const char* const fmt, ...)
+{
+    va_list args;
+    va_start(args, fmt);
+    std::vfprintf(stdout, fmt, args);
+    std::fprintf(stdout, "\n");
+    va_end(args);
+}
+
+static inline
+void d_stderr(const char* const fmt, ...)
+{
+    va_list args;
+    va_start(args, fmt);
+    std::vfprintf(stderr, fmt, args);
+    std::fprintf(stderr, "\n");
+    va_end(args);
+}
+
+static inline
+void d_stderr2(const char* const fmt, ...)
+{
+    va_list args;
+    va_start(args, fmt);
+    std::fprintf(stderr, "\x1b[31m");
+    std::vfprintf(stderr, fmt, args);
+    std::fprintf(stderr, "\x1b[0m\n");
+    va_end(args);
+}
+
+// -----------------------------------------------------------------------
+// d_*sleep
+
+static inline
+void d_sleep(unsigned int secs)
+{
+#ifdef DISTRHO_OS_WINDOWS
+    Sleep(secs * 1000);
+#else
+    sleep(secs);
+#endif
+}
+
+static inline
+void d_msleep(unsigned int msecs)
+{
+#ifdef DISTRHO_OS_WINDOWS
+    Sleep(msecs);
+#else
+    usleep(msecs * 1000);
+#endif
+}
+
+// -----------------------------------------------------------------------
+// d_string class
+
+class d_string
+{
+public:
+    // -------------------------------------------------------------------
+    // constructors (no explicit conversions allowed)
+
+    /*
+     * Empty string.
+     */
+    explicit d_string()
+    {
+        _init();
+        _dup(nullptr);
+    }
+
+    /*
+     * Simple character.
+     */
+    explicit d_string(const char c)
+    {
+        char ch[2];
+        ch[0] = c;
+        ch[1] = '\0';
+
+        _init();
+        _dup(ch);
+    }
+
+    /*
+     * Simple char string.
+     */
+    explicit d_string(char* const strBuf)
+    {
+        _init();
+        _dup(strBuf);
+    }
+
+    /*
+     * Simple const char string.
+     */
+    explicit d_string(const char* const strBuf)
+    {
+        _init();
+        _dup(strBuf);
+    }
+
+    /*
+     * Integer.
+     */
+    explicit d_string(const int value)
+    {
+        char strBuf[0xff+1];
+        std::memset(strBuf, 0, (0xff+1)*sizeof(char));
+        std::snprintf(strBuf, 0xff, "%d", value);
+
+        _init();
+        _dup(strBuf);
+    }
+
+    /*
+     * Unsigned integer, possibly in hexadecimal.
+     */
+    explicit d_string(const unsigned int value, const bool hexadecimal = false)
+    {
+        char strBuf[0xff+1];
+        std::memset(strBuf, 0, (0xff+1)*sizeof(char));
+        std::snprintf(strBuf, 0xff, hexadecimal ? "0x%x" : "%u", value);
+
+        _init();
+        _dup(strBuf);
+    }
+
+    /*
+     * Long integer.
+     */
+    explicit d_string(const long int value)
+    {
+        char strBuf[0xff+1];
+        std::memset(strBuf, 0, (0xff+1)*sizeof(char));
+        std::snprintf(strBuf, 0xff, "%ld", value);
+
+        _init();
+        _dup(strBuf);
+    }
+
+    /*
+     * Long unsigned integer, possibly hexadecimal.
+     */
+    explicit d_string(const unsigned long int value, const bool hexadecimal = false)
+    {
+        char strBuf[0xff+1];
+        std::memset(strBuf, 0, (0xff+1)*sizeof(char));
+        std::snprintf(strBuf, 0xff, hexadecimal ? "0x%lx" : "%lu", value);
+
+        _init();
+        _dup(strBuf);
+    }
+
+    /*
+     * Single-precision floating point number.
+     */
+    explicit d_string(const float value)
+    {
+        char strBuf[0xff+1];
+        std::memset(strBuf, 0, (0xff+1)*sizeof(char));
+        std::snprintf(strBuf, 0xff, "%f", value);
+
+        _init();
+        _dup(strBuf);
+    }
+
+    /*
+     * Double-precision floating point number.
+     */
+    explicit d_string(const double value)
+    {
+        char strBuf[0xff+1];
+        std::memset(strBuf, 0, (0xff+1)*sizeof(char));
+        std::snprintf(strBuf, 0xff, "%g", value);
+
+        _init();
+        _dup(strBuf);
+    }
+
+    // -------------------------------------------------------------------
+    // non-explicit constructor
+
+    /*
+     * Create string from another string.
+     */
+    d_string(const d_string& str)
+    {
+        _init();
+        _dup(str.fBuffer);
+    }
+
+    // -------------------------------------------------------------------
+    // destructor
+
+    /*
+     * Destructor.
+     */
+    ~d_string()
+    {
+        assert(fBuffer != nullptr);
+
+        delete[] fBuffer;
+        fBuffer = nullptr;
+    }
+
+    // -------------------------------------------------------------------
+    // public methods
+
+    /*
+     * Get length of the string.
+     */
+    size_t length() const noexcept
+    {
+        return fBufferLen;
+    }
+
+    /*
+     * Check if the string is empty.
+     */
+    bool isEmpty() const noexcept
+    {
+        return (fBufferLen == 0);
+    }
+
+    /*
+     * Check if the string is not empty.
+     */
+    bool isNotEmpty() const noexcept
+    {
+        return (fBufferLen != 0);
+    }
+
+    /*
+     * Check if the string contains another string, optionally ignoring case.
+     */
+    bool contains(const char* const strBuf, const bool ignoreCase = false) const
+    {
+        if (strBuf == nullptr)
+            return false;
+
+        if (ignoreCase)
+        {
+#ifdef __USE_GNU
+            return (strcasestr(fBuffer, strBuf) != nullptr);
+#else
+            d_string tmp1(fBuffer), tmp2(strBuf);
+            tmp1.toLower();
+            tmp2.toLower();
+            return (std::strstr((const char*)tmp1, (const char*)tmp2) != nullptr);
+#endif
+        }
+
+        return (std::strstr(fBuffer, strBuf) != nullptr);
+    }
+
+    /*
+     * Overloaded function.
+     */
+    bool contains(const d_string& str, const bool ignoreCase = false) const
+    {
+        return contains(str.fBuffer, ignoreCase);
+    }
+
+    /*
+     * Check if character at 'pos' is a digit.
+     */
+    bool isDigit(const size_t pos) const noexcept
+    {
+        if (pos >= fBufferLen)
+            return false;
+
+        return (fBuffer[pos] >= '0' && fBuffer[pos] <= '9');
+    }
+
+    /*
+     * Check if the string starts with the character 'c'.
+     */
+    bool startsWith(const char c) const
+    {
+        if (c == '\0')
+            return false;
+
+        return (fBufferLen > 0 && fBuffer[0] == c);
+    }
+
+    /*
+     * Check if the string starts with the string 'prefix'.
+     */
+    bool startsWith(const char* const prefix) const
+    {
+        if (prefix == nullptr)
+            return false;
+
+        const size_t prefixLen(std::strlen(prefix));
+
+        if (fBufferLen < prefixLen)
+            return false;
+
+        return (std::strncmp(fBuffer + (fBufferLen-prefixLen), prefix, prefixLen) == 0);
+    }
+
+    /*
+     * Check if the string ends with the character 'c'.
+     */
+    bool endsWith(const char c) const
+    {
+        if (c == '\0')
+            return false;
+
+        return (fBufferLen > 0 && fBuffer[fBufferLen] == c);
+    }
+
+    /*
+     * Check if the string ends with the string 'suffix'.
+     */
+    bool endsWith(const char* const suffix) const
+    {
+        if (suffix == nullptr)
+            return false;
+
+        const size_t suffixLen(std::strlen(suffix));
+
+        if (fBufferLen < suffixLen)
+            return false;
+
+        return (std::strncmp(fBuffer + (fBufferLen-suffixLen), suffix, suffixLen) == 0);
+    }
+
+    /*
+     * Clear the string.
+     */
+    void clear() noexcept
+    {
+        truncate(0);
+    }
+
+    /*
+     * Replace all occurrences of character 'before' with character 'after'.
+     */
+    void replace(const char before, const char after) noexcept
+    {
+        if (before == '\0' || after == '\0')
+            return;
+
+        for (size_t i=0; i < fBufferLen; ++i)
+        {
+            if (fBuffer[i] == before)
+                fBuffer[i] = after;
+            else if (fBuffer[i] == '\0')
+                break;
+        }
+    }
+
+    /*
+     * Truncate the string to size 'n'.
+     */
+    void truncate(const size_t n) noexcept
+    {
+        if (n >= fBufferLen)
+            return;
+
+        for (size_t i=n; i < fBufferLen; ++i)
+            fBuffer[i] = '\0';
+
+        fBufferLen = n;
+    }
+
+    /*
+     * Convert all non-basic characters to '_'.
+     */
+    void toBasic() noexcept
+    {
+        for (size_t i=0; i < fBufferLen; ++i)
+        {
+            if (fBuffer[i] >= '0' && fBuffer[i] <= '9')
+                continue;
+            if (fBuffer[i] >= 'A' && fBuffer[i] <= 'Z')
+                continue;
+            if (fBuffer[i] >= 'a' && fBuffer[i] <= 'z')
+                continue;
+            if (fBuffer[i] == '_')
+                continue;
+
+            fBuffer[i] = '_';
+        }
+    }
+
+    /*
+     * Convert to all ascii characters to lowercase.
+     */
+    void toLower() noexcept
+    {
+        static const char kCharDiff('a' - 'A');
+
+        for (size_t i=0; i < fBufferLen; ++i)
+        {
+            if (fBuffer[i] >= 'A' && fBuffer[i] <= 'Z')
+                fBuffer[i] += kCharDiff;
+        }
+    }
+
+    /*
+     * Convert to all ascii characters to uppercase.
+     */
+    void toUpper() noexcept
+    {
+        static const char kCharDiff('a' - 'A');
+
+        for (size_t i=0; i < fBufferLen; ++i)
+        {
+            if (fBuffer[i] >= 'a' && fBuffer[i] <= 'z')
+                fBuffer[i] -= kCharDiff;
+        }
+    }
+
+    // -------------------------------------------------------------------
+    // public operators
+
+    operator const char*() const noexcept
+    {
+        return fBuffer;
+    }
+
+    char& operator[](const size_t pos) const noexcept
+    {
+        return fBuffer[pos];
+    }
+
+    bool operator==(const char* const strBuf) const
+    {
+        return (strBuf != nullptr && std::strcmp(fBuffer, strBuf) == 0);
+    }
+
+    bool operator==(const d_string& str) const
+    {
+        return operator==(str.fBuffer);
+    }
+
+    bool operator!=(const char* const strBuf) const
+    {
+        return !operator==(strBuf);
+    }
+
+    bool operator!=(const d_string& str) const
+    {
+        return !operator==(str.fBuffer);
+    }
+
+    d_string& operator=(const char* const strBuf)
+    {
+        _dup(strBuf);
+
+        return *this;
+    }
+
+    d_string& operator=(const d_string& str)
+    {
+        return operator=(str.fBuffer);
+    }
+
+    d_string& operator+=(const char* const strBuf)
+    {
+        if (strBuf == nullptr)
+            return *this;
+
+        const size_t newBufSize = fBufferLen + std::strlen(strBuf) + 1;
+        char         newBuf[newBufSize];
+
+        std::strcpy(newBuf, fBuffer);
+        std::strcat(newBuf, strBuf);
+
+        _dup(newBuf, newBufSize-1);
+
+        return *this;
+    }
+
+    d_string& operator+=(const d_string& str)
+    {
+        return operator+=(str.fBuffer);
+    }
+
+    d_string operator+(const char* const strBuf)
+    {
+        const size_t newBufSize = fBufferLen + ((strBuf != nullptr) ? std::strlen(strBuf) : 0) + 1;
+        char         newBuf[newBufSize];
+
+        std::strcpy(newBuf, fBuffer);
+
+        if (strBuf != nullptr)
+            std::strcat(newBuf, strBuf);
+
+        return d_string(newBuf);
+    }
+
+    d_string operator+(const d_string& str)
+    {
+        return operator+(str.fBuffer);
+    }
+
+    // -------------------------------------------------------------------
+
+private:
+    char*  fBuffer;    // the actual string buffer
+    size_t fBufferLen; // string length
+    bool   fFirstInit; // true when first initiated
+
+    /*
+     * Shared init function.
+     * Called on all constructors.
+     */
+    void _init() noexcept
+    {
+        fBuffer    = nullptr;
+        fBufferLen = 0;
+        fFirstInit = true;
+    }
+
+    /*
+     * Helper function.
+     * Called whenever the string needs to be allocated.
+     *
+     * Notes:
+     * - Allocates string only if first initiated, or if 'strBuf' is not null and new string contents are different
+     * - If 'strBuf' is null 'size' must be 0
+     */
+    void _dup(const char* const strBuf, const size_t size = 0)
+    {
+        if (strBuf != nullptr)
+        {
+            // don't recreate string if contents match
+            if (fFirstInit || std::strcmp(fBuffer, strBuf) != 0)
+            {
+                if (! fFirstInit)
+                {
+                    assert(fBuffer != nullptr);
+                    delete[] fBuffer;
+                }
+
+                fBufferLen = (size > 0) ? size : std::strlen(strBuf);
+                fBuffer    = new char[fBufferLen+1];
+
+                std::strcpy(fBuffer, strBuf);
+
+                fBuffer[fBufferLen] = '\0';
+
+                fFirstInit = false;
+            }
+        }
+        else
+        {
+            assert(size == 0);
+
+            // don't recreate null string
+            if (fFirstInit || fBufferLen != 0)
+            {
+                if (! fFirstInit)
+                {
+                    assert(fBuffer != nullptr);
+                    delete[] fBuffer;
+                }
+
+                fBufferLen = 0;
+                fBuffer    = new char[1];
+                fBuffer[0] = '\0';
+
+                fFirstInit = false;
+            }
+        }
+    }
+};
+
+// -----------------------------------------------------------------------
+
+static inline
+d_string operator+(const d_string& strBefore, const char* const strBufAfter)
+{
+    const char* const strBufBefore = (const char*)strBefore;
+    const size_t newBufSize        = strBefore.length() + ((strBufAfter != nullptr) ? std::strlen(strBufAfter) : 0) + 1;
+    char newBuf[newBufSize];
+
+    std::strcpy(newBuf, strBufBefore);
+    std::strcat(newBuf, strBufAfter);
+
+    return d_string(newBuf);
+}
+
+static inline
+d_string operator+(const char* const strBufBefore, const d_string& strAfter)
+{
+    const char* const strBufAfter = (const char*)strAfter;
+    const size_t      newBufSize  = ((strBufBefore != nullptr) ? std::strlen(strBufBefore) : 0) + strAfter.length() + 1;
+    char newBuf[newBufSize];
+
+    std::strcpy(newBuf, strBufBefore);
+    std::strcat(newBuf, strBufAfter);
+
+    return d_string(newBuf);
+}
+
+// -----------------------------------------------------------------------
+
+#endif // DISTRHO_UTILS_HPP_INCLUDED

distrho/src/DistrhoDefines.h

@@ -0,0 +1,114 @@
+/*
+ * DISTRHO Plugin Toolkit (DPT)
+ * Copyright (C) 2012-2013 Filipe Coelho <falktx@falktx.com>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any purpose with
+ * or without fee is hereby granted, provided that the above copyright notice and this
+ * permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD
+ * TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN
+ * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+ * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
+ * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef DISTRHO_DEFINES_H_INCLUDED
+#define DISTRHO_DEFINES_H_INCLUDED
+
+#include "DistrhoPluginInfo.h"
+
+#ifndef DISTRHO_PLUGIN_NAME
+# error DISTRHO_PLUGIN_NAME undefined!
+#endif
+
+#ifndef DISTRHO_PLUGIN_HAS_UI
+# error DISTRHO_PLUGIN_HAS_UI undefined!
+#endif
+
+#ifndef DISTRHO_PLUGIN_IS_SYNTH
+# error DISTRHO_PLUGIN_IS_SYNTH undefined!
+#endif
+
+#ifndef DISTRHO_PLUGIN_NUM_INPUTS
+# error DISTRHO_PLUGIN_NUM_INPUTS undefined!
+#endif
+
+#ifndef DISTRHO_PLUGIN_NUM_OUTPUTS
+# error DISTRHO_PLUGIN_NUM_OUTPUTS undefined!
+#endif
+
+#ifndef DISTRHO_PLUGIN_WANT_LATENCY
+# error DISTRHO_PLUGIN_WANT_LATENCY undefined!
+#endif
+
+#ifndef DISTRHO_PLUGIN_WANT_PROGRAMS
+# error DISTRHO_PLUGIN_WANT_PROGRAMS undefined!
+#endif
+
+#ifndef DISTRHO_PLUGIN_WANT_STATE
+# error DISTRHO_PLUGIN_WANT_STATE undefined!
+#endif
+
+#ifndef DISTRHO_PLUGIN_WANT_TIMEPOS
+# error DISTRHO_PLUGIN_WANT_TIMEPOS undefined!
+#endif
+
+#if defined(WIN32) || defined(_WIN32) || defined(__WIN32__)
+# define DISTRHO_PLUGIN_EXPORT extern "C" __declspec (dllexport)
+# define DISTRHO_OS_WINDOWS    1
+# define DISTRHO_DLL_EXTENSION "dll"
+#else
+# define DISTRHO_PLUGIN_EXPORT extern "C" __attribute__ ((visibility("default")))
+# if defined(__APPLE__)
+#  define DISTRHO_OS_MAC        1
+#  define DISTRHO_DLL_EXTENSION "dylib"
+# elif defined(__HAIKU__)
+#  define DISTRHO_OS_HAIKU      1
+#  define DISTRHO_DLL_EXTENSION "so"
+# elif defined(__linux__)
+#  define DISTRHO_OS_LINUX      1
+#  define DISTRHO_DLL_EXTENSION "so"
+# endif
+#endif
+
+#ifndef DISTRHO_DLL_EXTENSION
+# define DISTRHO_DLL_EXTENSION "so"
+#endif
+
+#if defined(HAVE_CPP11_SUPPORT)
+# define PROPER_CPP11_SUPPORT
+#elif defined(__GNUC__) && (__cplusplus >= 201103L || defined(__GXX_EXPERIMENTAL_CXX0X__))
+# if  (__GNUC__ * 100 + __GNUC_MINOR__) >= 405
+#  define PROPER_CPP11_SUPPORT
+#  if  (__GNUC__ * 100 + __GNUC_MINOR__) < 407
+#   define override // gcc4.7+ only
+#  endif
+# endif
+#endif
+
+#ifndef PROPER_CPP11_SUPPORT
+# ifndef __clang__
+#  define noexcept throw()
+# endif
+# define override
+# define nullptr (0)
+#endif
+
+#ifndef DISTRHO_NO_NAMESPACE
+# ifndef DISTRHO_NAMESPACE
+#  define DISTRHO_NAMESPACE DISTRHO
+# endif
+# define START_NAMESPACE_DISTRHO namespace DISTRHO_NAMESPACE {
+# define END_NAMESPACE_DISTRHO }
+# define USE_NAMESPACE_DISTRHO using namespace DISTRHO_NAMESPACE;
+#else
+# define START_NAMESPACE_DISTRHO
+# define END_NAMESPACE_DISTRHO
+# define USE_NAMESPACE_DISTRHO
+#endif
+
+#define DISTRHO_UI_URI DISTRHO_PLUGIN_URI "#UI"
+
+#endif // DISTRHO_DEFINES_H_INCLUDED

distrho/src/DistrhoPlugin.cpp

@@ -0,0 +1,107 @@
+/*
+ * DISTRHO Plugin Toolkit (DPT)
+ * Copyright (C) 2012-2013 Filipe Coelho <falktx@falktx.com>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any purpose with
+ * or without fee is hereby granted, provided that the above copyright notice and this
+ * permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD
+ * TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN
+ * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+ * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
+ * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include "DistrhoPluginInternal.hpp"
+
+START_NAMESPACE_DISTRHO
+
+// -----------------------------------------------------------------------
+// Static data, see DistrhoPluginInternal.hpp
+
+uint32_t d_lastBufferSize = 0;
+double   d_lastSampleRate = 0.0;
+
+// -----------------------------------------------------------------------
+// Static fallback data, see DistrhoPluginInternal.hpp
+
+const d_string        PluginExporter::sFallbackString;
+const ParameterRanges PluginExporter::sFallbackRanges;
+
+// -----------------------------------------------------------------------
+// Plugin
+
+Plugin::Plugin(uint32_t parameterCount, uint32_t programCount, uint32_t stateCount)
+    : pData(new PrivateData())
+{
+    if (parameterCount > 0)
+    {
+        pData->parameterCount = parameterCount;
+        pData->parameters     = new Parameter[parameterCount];
+    }
+
+    if (programCount > 0)
+    {
+#if DISTRHO_PLUGIN_WANT_PROGRAMS
+        pData->programCount = programCount;
+        pData->programNames = new d_string[programCount];
+#endif
+    }
+
+    if (stateCount > 0)
+    {
+#if DISTRHO_PLUGIN_WANT_STATE
+        pData->stateCount = stateCount;
+        pData->stateKeys  = new d_string[stateCount];
+#endif
+    }
+}
+
+Plugin::~Plugin()
+{
+    delete pData;
+}
+
+// -----------------------------------------------------------------------
+// Host state
+
+uint32_t Plugin::d_getBufferSize() const noexcept
+{
+    return pData->bufferSize;
+}
+
+double Plugin::d_getSampleRate() const noexcept
+{
+    return pData->sampleRate;
+}
+
+#if DISTRHO_PLUGIN_WANT_TIMEPOS
+const TimePos& Plugin::d_getTimePos() const noexcept
+{
+    return pData->timePos;
+}
+#endif
+
+#if DISTRHO_PLUGIN_WANT_LATENCY
+void Plugin::d_setLatency(uint32_t frames) noexcept
+{
+    pData->latency = frames;
+}
+#endif
+
+// -----------------------------------------------------------------------
+// Callbacks (optional)
+
+void Plugin::d_bufferSizeChanged(uint32_t)
+{
+}
+
+void Plugin::d_sampleRateChanged(double)
+{
+}
+
+// -----------------------------------------------------------------------
+
+END_NAMESPACE_DISTRHO

distrho/src/DistrhoPluginInternal.hpp

@@ -0,0 +1,380 @@
+/*
+ * DISTRHO Plugin Toolkit (DPT)
+ * Copyright (C) 2012-2013 Filipe Coelho <falktx@falktx.com>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any purpose with
+ * or without fee is hereby granted, provided that the above copyright notice and this
+ * permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD
+ * TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN
+ * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+ * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
+ * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef DISTRHO_PLUGIN_INTERNAL_HPP_INCLUDED
+#define DISTRHO_PLUGIN_INTERNAL_HPP_INCLUDED
+
+#include "../DistrhoPlugin.hpp"
+
+START_NAMESPACE_DISTRHO
+
+// -----------------------------------------------------------------------
+// Maxmimum values
+
+static const uint32_t kMaxMidiEvents = 512;
+
+// -----------------------------------------------------------------------
+// Static data, see DistrhoPlugin.cpp
+
+extern uint32_t d_lastBufferSize;
+extern double   d_lastSampleRate;
+
+// -----------------------------------------------------------------------
+// Plugin private data
+
+struct Plugin::PrivateData {
+    uint32_t   parameterCount;
+    Parameter* parameters;
+
+#if DISTRHO_PLUGIN_WANT_PROGRAMS
+    uint32_t  programCount;
+    d_string* programNames;
+#endif
+
+#if DISTRHO_PLUGIN_WANT_STATE
+    uint32_t  stateCount;
+    d_string* stateKeys;
+#endif
+
+#if DISTRHO_PLUGIN_WANT_LATENCY
+    uint32_t latency;
+#endif
+
+#if DISTRHO_PLUGIN_WANT_TIMEPOS
+    TimePos timePos;
+#endif
+
+    uint32_t bufferSize;
+    double   sampleRate;
+
+    PrivateData() noexcept
+        : parameterCount(0),
+          parameters(nullptr),
+#if DISTRHO_PLUGIN_WANT_PROGRAMS
+          programCount(0),
+          programNames(nullptr),
+#endif
+#if DISTRHO_PLUGIN_WANT_STATE
+          stateCount(0),
+          stateKeys(nullptr),
+#endif
+#if DISTRHO_PLUGIN_WANT_LATENCY
+          latency(0),
+#endif
+          bufferSize(d_lastBufferSize),
+          sampleRate(d_lastSampleRate)
+    {
+        assert(bufferSize != 0);
+        assert(sampleRate != 0.0);
+    }
+
+    ~PrivateData()
+    {
+        if (parameters != nullptr)
+        {
+            delete[] parameters;
+            parameters = nullptr;
+        }
+
+#if DISTRHO_PLUGIN_WANT_PROGRAMS
+        if (programNames != nullptr)
+        {
+            delete[] programNames;
+            programNames = nullptr;
+        }
+#endif
+
+#if DISTRHO_PLUGIN_WANT_STATE
+        if (stateKeys != nullptr)
+        {
+            delete[] stateKeys;
+            stateKeys = nullptr;
+        }
+#endif
+    }
+};
+
+// -----------------------------------------------------------------------
+// Plugin exporter class
+
+class PluginExporter
+{
+public:
+    PluginExporter()
+        : fPlugin(createPlugin()),
+          fData((fPlugin != nullptr) ? fPlugin->pData : nullptr)
+    {
+        assert(fPlugin != nullptr);
+
+        if (fPlugin == nullptr)
+            return;
+
+        for (uint32_t i=0, count=fData->parameterCount; i < count; ++i)
+            fPlugin->d_initParameter(i, fData->parameters[i]);
+
+#if DISTRHO_PLUGIN_WANT_PROGRAMS
+        for (uint32_t i=0, count=fData->programCount; i < count; ++i)
+            fPlugin->d_initProgramName(i, fData->programNames[i]);
+#endif
+
+#if DISTRHO_PLUGIN_WANT_STATE
+        for (uint32_t i=0, count=fData->stateCount; i < count; ++i)
+            fPlugin->d_initStateKey(i, fData->stateKeys[i]);
+#endif
+    }
+
+    ~PluginExporter()
+    {
+        delete fPlugin;
+    }
+
+    // -------------------------------------------------------------------
+
+    const char* getName() const noexcept
+    {
+        return (fPlugin != nullptr) ? fPlugin->d_getName() : "";
+    }
+
+    const char* getLabel() const noexcept
+    {
+        return (fPlugin != nullptr) ? fPlugin->d_getLabel() : "";
+    }
+
+    const char* getMaker() const noexcept
+    {
+        return (fPlugin != nullptr) ? fPlugin->d_getMaker() : "";
+    }
+
+    const char* getLicense() const noexcept
+    {
+        return (fPlugin != nullptr) ? fPlugin->d_getLicense() : "";
+    }
+
+    uint32_t getVersion() const noexcept
+    {
+        return (fPlugin != nullptr) ? fPlugin->d_getVersion() : 1000;
+    }
+
+    long getUniqueId() const noexcept
+    {
+        return (fPlugin != nullptr) ? fPlugin->d_getUniqueId() : 0;
+    }
+
+    // -------------------------------------------------------------------
+
+#if DISTRHO_PLUGIN_WANT_LATENCY
+    uint32_t getLatency() const noexcept
+    {
+        return (fData != nullptr) ? fData->latency : 0;
+    }
+#endif
+
+    uint32_t getParameterCount() const noexcept
+    {
+        return (fData != nullptr) ? fData->parameterCount : 0;
+    }
+
+    uint32_t getParameterHints(const uint32_t index) const noexcept
+    {
+        assert(index < fData->parameterCount);
+        return (fData != nullptr && index < fData->parameterCount) ? fData->parameters[index].hints : 0x0;
+    }
+
+    bool isParameterOutput(const uint32_t index) const noexcept
+    {
+        return (getParameterHints(index) & PARAMETER_IS_OUTPUT);
+    }
+
+    const d_string& getParameterName(const uint32_t index) const noexcept
+    {
+        assert(index < fData->parameterCount);
+        return (fData != nullptr && index < fData->parameterCount) ? fData->parameters[index].name : sFallbackString;
+    }
+
+    const d_string& getParameterSymbol(const uint32_t index) const noexcept
+    {
+        assert(index < fData->parameterCount);
+        return (fData != nullptr && index < fData->parameterCount) ? fData->parameters[index].symbol : sFallbackString;
+    }
+
+    const d_string& getParameterUnit(const uint32_t index) const noexcept
+    {
+        assert(index < fData->parameterCount);
+        return (fData != nullptr && index < fData->parameterCount) ? fData->parameters[index].unit : sFallbackString;
+    }
+
+    const ParameterRanges& getParameterRanges(const uint32_t index) const noexcept
+    {
+        assert(index < fData->parameterCount);
+        return (fData != nullptr && index < fData->parameterCount) ? fData->parameters[index].ranges : sFallbackRanges;
+    }
+
+    float getParameterValue(const uint32_t index) const noexcept
+    {
+        assert(index < fData->parameterCount);
+        return (fPlugin != nullptr && index < fData->parameterCount) ? fPlugin->d_getParameterValue(index) : 0.0f;
+    }
+
+    void setParameterValue(const uint32_t index, const float value)
+    {
+        assert(index < fData->parameterCount);
+
+        if (fPlugin != nullptr && index < fData->parameterCount)
+            fPlugin->d_setParameterValue(index, value);
+    }
+
+#if DISTRHO_PLUGIN_WANT_PROGRAMS
+    uint32_t getProgramCount() const noexcept
+    {
+        return (fData != nullptr) ? fData->programCount : 0;
+    }
+
+    const d_string& getProgramName(const uint32_t index) const noexcept
+    {
+        assert(index < fData->programCount);
+        return (fData != nullptr && index < fData->programCount) ? fData->programNames[index] : sFallbackString;
+    }
+
+    void setProgram(const uint32_t index)
+    {
+        assert(index < fData->programCount);
+
+        if (fPlugin != nullptr && index < fData->programCount)
+            fPlugin->d_setProgram(index);
+    }
+#endif
+
+#if DISTRHO_PLUGIN_WANT_STATE
+    uint32_t getStateCount() const noexcept
+    {
+        return fData != nullptr ? fData->stateCount : 0;
+    }
+
+    const d_string& getStateKey(const uint32_t index) const noexcept
+    {
+        assert(index < fData->stateCount);
+        return (fData != nullptr && index < fData->stateCount) ? fData->stateKeys[index] : sFallbackString;
+    }
+
+    void setState(const char* const key, const char* const value)
+    {
+        assert(key != nullptr && value != nullptr);
+
+        if (fPlugin != nullptr && key != nullptr && value != nullptr)
+            fPlugin->d_setState(key, value);
+    }
+#endif
+
+#if DISTRHO_PLUGIN_WANT_TIMEPOS
+    void setTimePos(const bool playing, const uint64_t frame, const double bpm)
+    {
+        if (fData != nullptr)
+        {
+            fData->timePos.playing = playing;
+            fData->timePos.frame   = frame;
+            fData->timePos.bpm     = bpm;
+        }
+    }
+#endif
+
+    // -------------------------------------------------------------------
+
+    void activate()
+    {
+        if (fPlugin != nullptr)
+            fPlugin->d_activate();
+    }
+
+    void deactivate()
+    {
+        if (fPlugin != nullptr)
+            fPlugin->d_deactivate();
+    }
+
+#if DISTRHO_PLUGIN_IS_SYNTH
+    void run(float** const inputs, float** const outputs, const uint32_t frames, const MidiEvent* const midiEvents, const uint32_t midiEventCount)
+    {
+        if (fPlugin != nullptr)
+            fPlugin->d_run(inputs, outputs, frames, midiEvents, midiEventCount);
+    }
+#else
+    void run(float** const inputs, float** const outputs, const uint32_t frames)
+    {
+        if (fPlugin != nullptr)
+            fPlugin->d_run(inputs, outputs, frames);
+    }
+#endif
+    // -------------------------------------------------------------------
+
+    void setBufferSize(const uint32_t bufferSize, bool doCallback = false)
+    {
+        assert(bufferSize >= 2);
+
+        if (fData != nullptr)
+        {
+            if (doCallback && fData->bufferSize == bufferSize)
+                doCallback = false;
+
+            fData->bufferSize = bufferSize;
+        }
+
+        if (fPlugin != nullptr && doCallback)
+        {
+            fPlugin->d_deactivate();
+            fPlugin->d_bufferSizeChanged(bufferSize);
+            fPlugin->d_activate();
+        }
+    }
+
+    void setSampleRate(const double sampleRate, bool doCallback = false)
+    {
+        assert(sampleRate > 0.0);
+
+        if (fData != nullptr)
+        {
+            if (doCallback && fData->sampleRate == sampleRate)
+                doCallback = false;
+
+            fData->sampleRate = sampleRate;
+        }
+
+        if (fPlugin != nullptr && doCallback)
+        {
+            fPlugin->d_deactivate();
+            fPlugin->d_sampleRateChanged(sampleRate);
+            fPlugin->d_activate();
+        }
+    }
+
+private:
+    // -------------------------------------------------------------------
+    // private members accessed by DistrhoPlugin class
+
+    Plugin* const fPlugin;
+    Plugin::PrivateData* const fData;
+
+    // -------------------------------------------------------------------
+    // Static fallback data, see DistrhoPlugin.cpp
+
+    static const d_string        sFallbackString;
+    static const ParameterRanges sFallbackRanges;
+};
+
+// -----------------------------------------------------------------------
+
+END_NAMESPACE_DISTRHO
+
+#endif // DISTRHO_PLUGIN_INTERNAL_HPP_INCLUDED

distrho/src/DistrhoPluginLADSPA+DSSI.cpp

@@ -0,0 +1,702 @@
+/*
+ * DISTRHO Plugin Toolkit (DPT)
+ * Copyright (C) 2012-2013 Filipe Coelho <falktx@falktx.com>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any purpose with
+ * or without fee is hereby granted, provided that the above copyright notice and this
+ * permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD
+ * TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN
+ * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+ * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
+ * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include "DistrhoPluginInternal.hpp"
+
+#ifdef DISTRHO_PLUGIN_TARGET_DSSI
+# include "dssi/dssi.h"
+#else
+# include "ladspa/ladspa.h"
+# if DISTRHO_PLUGIN_IS_SYNTH
+#  error Cannot build synth plugin with LADSPA
+# endif
+# if DISTRHO_PLUGIN_WANT_STATE
+#  warning LADSPA cannot handle states
+# endif
+#endif
+
+#if DISTRHO_PLUGIN_WANT_TIMEPOS
+# warning LADSPA/DSSI does not support TimePos
+#endif
+
+START_NAMESPACE_DISTRHO
+
+// -----------------------------------------------------------------------
+
+class PluginLadspaDssi
+{
+public:
+    PluginLadspaDssi()
+        : fPortControls(nullptr),
+          fLastControlValues(nullptr)
+    {
+#if DISTRHO_PLUGIN_NUM_INPUTS > 0
+        for (uint32_t i=0; i < DISTRHO_PLUGIN_NUM_INPUTS; ++i)
+            fPortAudioIns[i] = nullptr;
+#else
+        fPortAudioIns = nullptr;
+#endif
+
+#if DISTRHO_PLUGIN_NUM_OUTPUTS > 0
+        for (uint32_t i=0; i < DISTRHO_PLUGIN_NUM_OUTPUTS; ++i)
+            fPortAudioOuts[i] = nullptr;
+#else
+        fPortAudioOuts = nullptr;
+#endif
+
+        {
+            const uint32_t count(fPlugin.getParameterCount());
+
+            fPortControls      = new LADSPA_Data*[count];
+            fLastControlValues = new LADSPA_Data[count];
+
+            for (uint32_t i=0; i < count; ++i)
+            {
+                fPortControls[i] = nullptr;
+                fLastControlValues[i] = fPlugin.getParameterValue(i);
+            }
+        }
+
+#if DISTRHO_PLUGIN_WANT_LATENCY
+        fPortLatency = nullptr;
+#endif
+    }
+
+    ~PluginLadspaDssi()
+    {
+        if (fPortControls != nullptr)
+        {
+            delete[] fPortControls;
+            fPortControls = nullptr;
+        }
+
+        if (fLastControlValues)
+        {
+            delete[] fLastControlValues;
+            fLastControlValues = nullptr;
+        }
+    }
+
+    // -------------------------------------------------------------------
+
+    void ladspa_activate()
+    {
+        fPlugin.activate();
+    }
+
+    void ladspa_deactivate()
+    {
+        fPlugin.deactivate();
+    }
+
+    // -------------------------------------------------------------------
+
+    void ladspa_connect_port(const unsigned long port, LADSPA_Data* const dataLocation)
+    {
+        unsigned long index = 0;
+
+#if DISTRHO_PLUGIN_NUM_INPUTS > 0
+        for (unsigned long i=0; i < DISTRHO_PLUGIN_NUM_INPUTS; ++i)
+        {
+            if (port == index++)
+            {
+                fPortAudioIns[i] = dataLocation;
+                return;
+            }
+        }
+#endif
+
+#if DISTRHO_PLUGIN_NUM_OUTPUTS > 0
+        for (unsigned long i=0; i < DISTRHO_PLUGIN_NUM_OUTPUTS; ++i)
+        {
+            if (port == index++)
+            {
+                fPortAudioOuts[i] = dataLocation;
+                return;
+            }
+        }
+#endif
+
+#if DISTRHO_PLUGIN_WANT_LATENCY
+        if (port == index++)
+        {
+            fPortLatency = dataLocation;
+            return;
+        }
+#endif
+
+        for (unsigned long i=0, count=fPlugin.getParameterCount(); i < count; ++i)
+        {
+            if (port == index++)
+            {
+                fPortControls[i] = dataLocation;
+                return;
+            }
+        }
+    }
+
+    // -------------------------------------------------------------------
+
+#ifdef DISTRHO_PLUGIN_TARGET_DSSI
+    void ladspa_run(const unsigned long sampleCount)
+    {
+        dssi_run_synth(sampleCount, nullptr, 0);
+    }
+
+    void dssi_run_synth(const unsigned long sampleCount, snd_seq_event_t* const events, const unsigned long eventCount)
+#else
+    void ladspa_run(const unsigned long sampleCount)
+#endif
+    {
+        // pre-roll
+        if (sampleCount == 0)
+            return updateParameterOutputs();
+
+        // Check for updated parameters
+        float curValue;
+
+        for (uint32_t i=0, count=fPlugin.getParameterCount(); i < count; ++i)
+        {
+            if (fPortControls[i] == nullptr)
+                continue;
+
+            curValue = *fPortControls[i];
+
+            if (fLastControlValues[i] != curValue && ! fPlugin.isParameterOutput(i))
+            {
+                fLastControlValues[i] = curValue;
+                fPlugin.setParameterValue(i, curValue);
+            }
+        }
+
+#if DISTRHO_PLUGIN_IS_SYNTH
+        // Get MIDI Events
+        uint32_t  midiEventCount = 0;
+        MidiEvent midiEvents[eventCount];
+
+        for (uint32_t i=0, j; i < eventCount; ++i)
+        {
+            const snd_seq_event_t& seqEvent(events[i]);
+
+            if (seqEvent.data.note.channel > 0xF || seqEvent.data.control.channel > 0xF)
+                continue;
+
+            switch (seqEvent.type)
+            {
+            case SND_SEQ_EVENT_NOTEOFF:
+                j = midiEventCount++;
+                midiEvents[j].frame  = seqEvent.time.tick;
+                midiEvents[j].size   = 3;
+                midiEvents[j].buf[0] = 0x80 + seqEvent.data.note.channel;
+                midiEvents[j].buf[1] = seqEvent.data.note.note;
+                midiEvents[j].buf[2] = 0;
+                midiEvents[j].buf[3] = 0;
+                break;
+            case SND_SEQ_EVENT_NOTEON:
+                j = midiEventCount++;
+                midiEvents[j].frame  = seqEvent.time.tick;
+                midiEvents[j].size   = 3;
+                midiEvents[j].buf[0] = 0x90 + seqEvent.data.note.channel;
+                midiEvents[j].buf[1] = seqEvent.data.note.note;
+                midiEvents[j].buf[2] = seqEvent.data.note.velocity;
+                midiEvents[j].buf[3] = 0;
+                break;
+            case SND_SEQ_EVENT_KEYPRESS:
+                j = midiEventCount++;
+                midiEvents[j].frame  = seqEvent.time.tick;
+                midiEvents[j].size   = 3;
+                midiEvents[j].buf[0] = 0xA0 + seqEvent.data.note.channel;
+                midiEvents[j].buf[1] = seqEvent.data.note.note;
+                midiEvents[j].buf[2] = seqEvent.data.note.velocity;
+                midiEvents[j].buf[3] = 0;
+                break;
+            case SND_SEQ_EVENT_CONTROLLER:
+                j = midiEventCount++;
+                midiEvents[j].frame  = seqEvent.time.tick;
+                midiEvents[j].size   = 3;
+                midiEvents[j].buf[0] = 0xB0 + seqEvent.data.control.channel;
+                midiEvents[j].buf[1] = seqEvent.data.control.param;
+                midiEvents[j].buf[2] = seqEvent.data.control.value;
+                midiEvents[j].buf[3] = 0;
+                break;
+            case SND_SEQ_EVENT_CHANPRESS:
+                j = midiEventCount++;
+                midiEvents[j].frame  = seqEvent.time.tick;
+                midiEvents[j].size   = 2;
+                midiEvents[j].buf[0] = 0xD0 + seqEvent.data.control.channel;
+                midiEvents[j].buf[1] = seqEvent.data.control.value;
+                midiEvents[j].buf[2] = 0;
+                midiEvents[j].buf[3] = 0;
+                break;
+#if 0 // TODO
+            case SND_SEQ_EVENT_PITCHBEND:
+                j = midiEventCount++;
+                midiEvents[j].frame  = seqEvent.time.tick;
+                midiEvents[j].size   = 3;
+                midiEvents[j].buf[0] = 0xE0 + seqEvent.data.control.channel;
+                midiEvents[j].buf[1] = 0;
+                midiEvents[j].buf[2] = 0;
+                midiEvents[j].buf[3] = 0;
+                break;
+#endif
+            }
+        }
+
+        fPlugin.run(fPortAudioIns, fPortAudioOuts, sampleCount, midiEvents, midiEventCount);
+#else
+        fPlugin.run(fPortAudioIns, fPortAudioOuts, sampleCount);
+#endif
+
+        updateParameterOutputs();
+
+#if defined(DISTRHO_PLUGIN_TARGET_DSSI) && ! DISTRHO_PLUGIN_IS_SYNTH
+        return; // unused
+        (void)events;
+        (void)eventCount;
+#endif
+    }
+
+    // -------------------------------------------------------------------
+
+#ifdef DISTRHO_PLUGIN_TARGET_DSSI
+# if DISTRHO_PLUGIN_WANT_STATE
+    char* dssi_configure(const char* const key, const char* const value)
+    {
+        if (std::strncmp(key, DSSI_RESERVED_CONFIGURE_PREFIX, std::strlen(DSSI_RESERVED_CONFIGURE_PREFIX) == 0))
+            return nullptr;
+        if (std::strncmp(key, DSSI_GLOBAL_CONFIGURE_PREFIX, std::strlen(DSSI_GLOBAL_CONFIGURE_PREFIX) == 0))
+            return nullptr;
+
+        fPlugin.setState(key, value);
+        return nullptr;
+    }
+# endif
+
+# if DISTRHO_PLUGIN_WANT_PROGRAMS
+    const DSSI_Program_Descriptor* dssi_get_program(const unsigned long index)
+    {
+        if (index >= fPlugin.getProgramCount())
+            return nullptr;
+
+        static DSSI_Program_Descriptor desc;
+
+        desc.Bank    = index / 128;
+        desc.Program = index % 128;
+        desc.Name    = fPlugin.getProgramName(index);
+
+        return &desc;
+    }
+
+    void dssi_select_program(const unsigned long bank, const unsigned long program)
+    {
+        const unsigned long realProgram(bank * 128 + program);
+
+        if (realProgram >= fPlugin.getProgramCount())
+            return;
+
+        fPlugin.setProgram(realProgram);
+
+        // Update control inputs
+        for (uint32_t i=0, count=fPlugin.getParameterCount(); i < count; ++i)
+        {
+            if (fPlugin.isParameterOutput(i))
+                continue;
+
+            fLastControlValues[i] = fPlugin.getParameterValue(i);
+
+            if (fPortControls[i] != nullptr)
+                *fPortControls[i] = fLastControlValues[i];
+        }
+    }
+# endif
+#endif
+
+    // -------------------------------------------------------------------
+
+private:
+    PluginExporter fPlugin;
+
+    // LADSPA ports
+#if DISTRHO_PLUGIN_NUM_INPUTS > 0
+    LADSPA_Data*  fPortAudioIns[DISTRHO_PLUGIN_NUM_INPUTS];
+#else
+    LADSPA_Data** fPortAudioIns;
+#endif
+#if DISTRHO_PLUGIN_NUM_OUTPUTS > 0
+    LADSPA_Data*  fPortAudioOuts[DISTRHO_PLUGIN_NUM_OUTPUTS];
+#else
+    LADSPA_Data** fPortAudioOuts;
+#endif
+    LADSPA_Data** fPortControls;
+#if DISTRHO_PLUGIN_WANT_LATENCY
+    LADSPA_Data*  fPortLatency;
+#endif
+
+    // Temporary data
+    LADSPA_Data* fLastControlValues;
+
+    // -------------------------------------------------------------------
+
+    void updateParameterOutputs()
+    {
+        for (uint32_t i=0, count=fPlugin.getParameterCount(); i < count; ++i)
+        {
+            if (! fPlugin.isParameterOutput(i))
+                continue;
+
+            fLastControlValues[i] = fPlugin.getParameterValue(i);
+
+            if (fPortControls[i] != nullptr)
+                *fPortControls[i] = fLastControlValues[i];
+        }
+
+#if DISTRHO_PLUGIN_WANT_LATENCY
+        if (fPortLatency != nullptr)
+            *fPortLatency = fPlugin.getLatency();
+#endif
+    }
+};
+
+// -----------------------------------------------------------------------
+
+static LADSPA_Handle ladspa_instantiate(const LADSPA_Descriptor*, unsigned long sampleRate)
+{
+    if (d_lastBufferSize == 0)
+        d_lastBufferSize = 2048;
+    d_lastSampleRate = sampleRate;
+
+    return new PluginLadspaDssi();
+}
+
+#define instancePtr ((PluginLadspaDssi*)instance)
+
+static void ladspa_connect_port(LADSPA_Handle instance, unsigned long port, LADSPA_Data* dataLocation)
+{
+    instancePtr->ladspa_connect_port(port, dataLocation);
+}
+
+static void ladspa_activate(LADSPA_Handle instance)
+{
+    instancePtr->ladspa_activate();
+}
+
+static void ladspa_run(LADSPA_Handle instance, unsigned long sampleCount)
+{
+    instancePtr->ladspa_run(sampleCount);
+}
+
+static void ladspa_deactivate(LADSPA_Handle instance)
+{
+    instancePtr->ladspa_deactivate();
+}
+
+static void ladspa_cleanup(LADSPA_Handle instance)
+{
+    delete instancePtr;
+}
+
+#ifdef DISTRHO_PLUGIN_TARGET_DSSI
+# if DISTRHO_PLUGIN_WANT_STATE
+static char* dssi_configure(LADSPA_Handle instance, const char* key, const char* value)
+{
+    return instancePtr->dssi_configure(key, value);
+}
+# endif
+
+# if DISTRHO_PLUGIN_WANT_PROGRAMS
+static const DSSI_Program_Descriptor* dssi_get_program(LADSPA_Handle instance, unsigned long index)
+{
+    return instancePtr->dssi_get_program(index);
+}
+
+static void dssi_select_program(LADSPA_Handle instance, unsigned long bank, unsigned long program)
+{
+    instancePtr->dssi_select_program(bank, program);
+}
+# endif
+
+# if DISTRHO_PLUGIN_IS_SYNTH
+static void dssi_run_synth(LADSPA_Handle instance, unsigned long sampleCount, snd_seq_event_t* events, unsigned long eventCount)
+{
+    instancePtr->dssi_run_synth(sampleCount, events, eventCount);
+}
+# endif
+#endif
+
+#undef instancePtr
+
+// -----------------------------------------------------------------------
+
+static LADSPA_Descriptor sLadspaDescriptor = {
+    /* UniqueID   */ 0,
+    /* Label      */ nullptr,
+    /* Properties */ LADSPA_PROPERTY_REALTIME | LADSPA_PROPERTY_HARD_RT_CAPABLE,
+    /* Name       */ nullptr,
+    /* Maker      */ nullptr,
+    /* Copyright  */ nullptr,
+    /* PortCount  */ 0,
+    /* PortDescriptors    */ nullptr,
+    /* PortNames          */ nullptr,
+    /* PortRangeHints     */ nullptr,
+    /* ImplementationData */ nullptr,
+    ladspa_instantiate,
+    ladspa_connect_port,
+    ladspa_activate,
+    ladspa_run,
+    /* run_adding */          nullptr,
+    /* set_run_adding_gain */ nullptr,
+    ladspa_deactivate,
+    ladspa_cleanup
+};
+
+#ifdef DISTRHO_PLUGIN_TARGET_DSSI
+static DSSI_Descriptor sDssiDescriptor = {
+    1,
+    &sLadspaDescriptor,
+# if DISTRHO_PLUGIN_WANT_STATE
+    dssi_configure,
+# else
+    /* configure                    */ nullptr,
+# endif
+# if DISTRHO_PLUGIN_WANT_PROGRAMS
+    dssi_get_program,
+    dssi_select_program,
+# else
+    /* get_program                  */ nullptr,
+    /* select_program               */ nullptr,
+# endif
+    /* get_midi_controller_for_port */ nullptr,
+# if DISTRHO_PLUGIN_IS_SYNTH
+    dssi_run_synth,
+# else
+    /* run_synth                    */ nullptr,
+# endif
+    /* run_synth_adding             */ nullptr,
+    /* run_multiple_synths          */ nullptr,
+    /* run_multiple_synths_adding   */ nullptr,
+    nullptr, nullptr
+};
+#endif
+
+// -----------------------------------------------------------------------
+
+class DescriptorInitializer
+{
+public:
+    DescriptorInitializer()
+    {
+        // Create dummy plugin to get data from
+        d_lastBufferSize = 512;
+        d_lastSampleRate = 44100.0;
+        PluginExporter plugin;
+        d_lastBufferSize = 0;
+        d_lastSampleRate = 0.0;
+
+        // Get port count, init
+        unsigned long port = 0;
+        unsigned long portCount = DISTRHO_PLUGIN_NUM_INPUTS + DISTRHO_PLUGIN_NUM_OUTPUTS + plugin.getParameterCount();
+#if DISTRHO_PLUGIN_WANT_LATENCY
+        portCount += 1;
+#endif
+        const char** const     portNames       = new const char*[portCount];
+        LADSPA_PortDescriptor* portDescriptors = new LADSPA_PortDescriptor[portCount];
+        LADSPA_PortRangeHint*  portRangeHints  = new LADSPA_PortRangeHint [portCount];
+
+        // Set ports
+#if DISTRHO_PLUGIN_NUM_INPUTS > 0
+        for (unsigned long i=0; i < DISTRHO_PLUGIN_NUM_INPUTS; ++i, ++port)
+        {
+            char portName[24] = { '\0' };
+            std::sprintf(portName, "Audio Input %lu", i+1);
+
+            portNames[port]       = strdup(portName);
+            portDescriptors[port] = LADSPA_PORT_AUDIO | LADSPA_PORT_INPUT;
+
+            portRangeHints[port].HintDescriptor = 0x0;
+            portRangeHints[port].LowerBound = 0.0f;
+            portRangeHints[port].UpperBound = 1.0f;
+        }
+#endif
+
+#if DISTRHO_PLUGIN_NUM_OUTPUTS > 0
+        for (unsigned long i=0; i < DISTRHO_PLUGIN_NUM_OUTPUTS; ++i, ++port)
+        {
+            char portName[24] = { '\0' };
+            std::sprintf(portName, "Audio Output %lu", i+1);
+
+            portNames[port]       = strdup(portName);
+            portDescriptors[port] = LADSPA_PORT_AUDIO | LADSPA_PORT_OUTPUT;
+
+            portRangeHints[port].HintDescriptor = 0x0;
+            portRangeHints[port].LowerBound = 0.0f;
+            portRangeHints[port].UpperBound = 1.0f;
+        }
+#endif
+
+#if DISTRHO_PLUGIN_WANT_LATENCY
+        // Set latency port
+        portNames[port]       = strdup("_latency");
+        portDescriptors[port] = LADSPA_PORT_CONTROL | LADSPA_PORT_OUTPUT;
+        portRangeHints[port].HintDescriptor = LADSPA_HINT_SAMPLE_RATE;
+        portRangeHints[port].LowerBound     = 0.0f;
+        portRangeHints[port].UpperBound     = 1.0f;
+        ++port;
+#endif
+
+        for (unsigned long i=0, count=plugin.getParameterCount(); i < count; ++i, ++port)
+        {
+            portNames[port]       = strdup((const char*)plugin.getParameterName(i));
+            portDescriptors[port] = LADSPA_PORT_CONTROL;
+
+            if (plugin.isParameterOutput(i))
+                portDescriptors[port] |= LADSPA_PORT_OUTPUT;
+            else
+                portDescriptors[port] |= LADSPA_PORT_INPUT;
+
+            {
+                const ParameterRanges& ranges(plugin.getParameterRanges(i));
+                const float defValue(ranges.def);
+
+                portRangeHints[port].HintDescriptor = LADSPA_HINT_BOUNDED_BELOW | LADSPA_HINT_BOUNDED_ABOVE;
+                portRangeHints[port].LowerBound     = ranges.min;
+                portRangeHints[port].UpperBound     = ranges.max;
+
+                if (defValue == 0.0f)
+                    portRangeHints[port].HintDescriptor |= LADSPA_HINT_DEFAULT_0;
+                else if (defValue == 1.0f)
+                    portRangeHints[port].HintDescriptor |= LADSPA_HINT_DEFAULT_1;
+                else if (defValue == 100.0f)
+                    portRangeHints[port].HintDescriptor |= LADSPA_HINT_DEFAULT_100;
+                else if (defValue == 440.0f)
+                    portRangeHints[port].HintDescriptor |= LADSPA_HINT_DEFAULT_440;
+                else if (ranges.min == defValue)
+                    portRangeHints[port].HintDescriptor |= LADSPA_HINT_DEFAULT_MINIMUM;
+                else if (ranges.max == defValue)
+                    portRangeHints[port].HintDescriptor |= LADSPA_HINT_DEFAULT_MAXIMUM;
+                else
+                {
+                    const float middleValue =  ranges.min/2.0f + ranges.max/2.0f;
+                    const float middleLow   = (ranges.min/2.0f + middleValue/2.0f)/2.0f + middleValue/2.0f;
+                    const float middleHigh  = (ranges.max/2.0f + middleValue/2.0f)/2.0f + middleValue/2.0f;
+
+                    if (defValue < middleLow)
+                        portRangeHints[port].HintDescriptor |= LADSPA_HINT_DEFAULT_LOW;
+                    else if (defValue > middleHigh)
+                        portRangeHints[port].HintDescriptor |= LADSPA_HINT_DEFAULT_HIGH;
+                    else
+                        portRangeHints[port].HintDescriptor |= LADSPA_HINT_DEFAULT_MIDDLE;
+                }
+            }
+
+            {
+                const uint32_t hints(plugin.getParameterHints(i));
+
+                if (hints & PARAMETER_IS_BOOLEAN)
+                    portRangeHints[port].HintDescriptor |= LADSPA_HINT_TOGGLED;
+                if (hints & PARAMETER_IS_INTEGER)
+                    portRangeHints[port].HintDescriptor |= LADSPA_HINT_INTEGER;
+                if (hints & PARAMETER_IS_LOGARITHMIC)
+                    portRangeHints[port].HintDescriptor |= LADSPA_HINT_LOGARITHMIC;
+            }
+        }
+
+        // Set data
+        sLadspaDescriptor.UniqueID  = plugin.getUniqueId();
+        sLadspaDescriptor.Label     = strdup(plugin.getLabel());
+        sLadspaDescriptor.Name      = strdup(plugin.getName());
+        sLadspaDescriptor.Maker     = strdup(plugin.getMaker());
+        sLadspaDescriptor.Copyright = strdup(plugin.getLicense());
+        sLadspaDescriptor.PortCount = portCount;
+        sLadspaDescriptor.PortNames = portNames;
+        sLadspaDescriptor.PortDescriptors = portDescriptors;
+        sLadspaDescriptor.PortRangeHints  = portRangeHints;
+    }
+
+    ~DescriptorInitializer()
+    {
+        if (sLadspaDescriptor.Label != nullptr)
+        {
+            std::free((void*)sLadspaDescriptor.Label);
+            sLadspaDescriptor.Label = nullptr;
+        }
+
+        if (sLadspaDescriptor.Name != nullptr)
+        {
+            std::free((void*)sLadspaDescriptor.Name);
+            sLadspaDescriptor.Name = nullptr;
+        }
+
+        if (sLadspaDescriptor.Maker != nullptr)
+        {
+            std::free((void*)sLadspaDescriptor.Maker);
+            sLadspaDescriptor.Maker = nullptr;
+        }
+
+        if (sLadspaDescriptor.Copyright != nullptr)
+        {
+            std::free((void*)sLadspaDescriptor.Copyright);
+            sLadspaDescriptor.Copyright = nullptr;
+        }
+
+        if (sLadspaDescriptor.PortDescriptors != nullptr)
+        {
+            delete[] sLadspaDescriptor.PortDescriptors;
+            sLadspaDescriptor.PortDescriptors = nullptr;
+        }
+
+        if (sLadspaDescriptor.PortRangeHints != nullptr)
+        {
+            delete[] sLadspaDescriptor.PortRangeHints;
+            sLadspaDescriptor.PortRangeHints = nullptr;
+        }
+
+        if (sLadspaDescriptor.PortNames != nullptr)
+        {
+            for (unsigned long i=0; i < sLadspaDescriptor.PortCount; ++i)
+            {
+                if (sLadspaDescriptor.PortNames[i] != nullptr)
+                    std::free((void*)sLadspaDescriptor.PortNames[i]);
+            }
+
+            delete[] sLadspaDescriptor.PortNames;
+            sLadspaDescriptor.PortNames = nullptr;
+        }
+    }
+};
+
+static DescriptorInitializer sDescInit;
+
+// -----------------------------------------------------------------------
+
+END_NAMESPACE_DISTRHO
+
+DISTRHO_PLUGIN_EXPORT
+const LADSPA_Descriptor* ladspa_descriptor(unsigned long index)
+{
+    USE_NAMESPACE_DISTRHO
+    return (index == 0) ? &sLadspaDescriptor : nullptr;
+}
+
+#ifdef DISTRHO_PLUGIN_TARGET_DSSI
+DISTRHO_PLUGIN_EXPORT
+const DSSI_Descriptor* dssi_descriptor(unsigned long index)
+{
+    USE_NAMESPACE_DISTRHO
+    return (index == 0) ? &sDssiDescriptor : nullptr;
+}
+#endif
+
+// -----------------------------------------------------------------------

distrho/src/DistrhoPluginLV2.cpp

@@ -0,0 +1,714 @@
+/*
+ * DISTRHO Plugin Toolkit (DPT)
+ * Copyright (C) 2012-2013 Filipe Coelho <falktx@falktx.com>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any purpose with
+ * or without fee is hereby granted, provided that the above copyright notice and this
+ * permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD
+ * TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN
+ * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+ * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
+ * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include "DistrhoPluginInternal.hpp"
+
+#include "lv2/atom.h"
+#include "lv2/atom-util.h"
+#include "lv2/buf-size.h"
+#include "lv2/midi.h"
+#include "lv2/options.h"
+#include "lv2/state.h"
+#include "lv2/time.h"
+#include "lv2/urid.h"
+#include "lv2/worker.h"
+#include "lv2/lv2_programs.h"
+
+#ifdef noexcept
+# undef noexcept
+#endif
+
+#include <map>
+
+#ifndef DISTRHO_PLUGIN_URI
+# error DISTRHO_PLUGIN_URI undefined!
+#endif
+
+#if DISTRHO_PLUGIN_WANT_STATE
+# warning LV2 State still TODO
+#endif
+#if DISTRHO_PLUGIN_WANT_TIMEPOS
+# warning LV2 TimePos still TODO
+#endif
+
+#define DISTRHO_LV2_USE_EVENTS_IN  (DISTRHO_PLUGIN_IS_SYNTH || DISTRHO_PLUGIN_WANT_TIMEPOS || (DISTRHO_PLUGIN_WANT_STATE && DISTRHO_PLUGIN_HAS_UI))
+#define DISTRHO_LV2_USE_EVENTS_OUT (DISTRHO_PLUGIN_WANT_STATE && DISTRHO_PLUGIN_HAS_UI)
+
+typedef std::map<d_string,d_string> StringMap;
+
+START_NAMESPACE_DISTRHO
+
+// -----------------------------------------------------------------------
+
+class PluginLv2
+{
+public:
+    PluginLv2(const LV2_URID_Map* const uridMap, const LV2_Worker_Schedule* const worker)
+        : fPortControls(nullptr),
+          fLastControlValues(nullptr),
+#if DISTRHO_LV2_USE_EVENTS_IN || DISTRHO_LV2_USE_EVENTS_OUT
+          fURIDs(uridMap),
+#endif
+          fUridMap(uridMap),
+          fWorker(worker)
+    {
+#if DISTRHO_PLUGIN_NUM_INPUTS > 0
+        for (uint32_t i=0; i < DISTRHO_PLUGIN_NUM_INPUTS; ++i)
+            fPortAudioIns[i] = nullptr;
+#else
+        fPortAudioIns = nullptr;
+#endif
+
+#if DISTRHO_PLUGIN_NUM_OUTPUTS > 0
+        for (uint32_t i=0; i < DISTRHO_PLUGIN_NUM_OUTPUTS; ++i)
+            fPortAudioOuts[i] = nullptr;
+#else
+        fPortAudioOuts = nullptr;
+#endif
+
+        {
+            const uint32_t count(fPlugin.getParameterCount());
+
+            fPortControls      = new float*[count];
+            fLastControlValues = new float[count];
+
+            for (uint32_t i=0; i < count; ++i)
+            {
+                fPortControls[i] = nullptr;
+                fLastControlValues[i] = fPlugin.getParameterValue(i);
+            }
+        }
+
+#if DISTRHO_LV2_USE_EVENTS_IN
+        fPortEventsIn = nullptr;
+#endif
+#if DISTRHO_LV2_USE_EVENTS_OUT
+        fPortEventsOut = nullptr;
+#endif
+#if DISTRHO_PLUGIN_WANT_LATENCY
+        fPortLatency = nullptr;
+#endif
+    }
+
+    ~PluginLv2()
+    {
+        if (fPortControls != nullptr)
+        {
+            delete[] fPortControls;
+            fPortControls = nullptr;
+        }
+
+        if (fLastControlValues)
+        {
+            delete[] fLastControlValues;
+            fLastControlValues = nullptr;
+        }
+
+#if DISTRHO_PLUGIN_WANT_STATE
+        fStateMap.clear();
+#endif
+    }
+
+    // -------------------------------------------------------------------
+
+    void lv2_activate()
+    {
+        fPlugin.activate();
+    }
+
+    void lv2_deactivate()
+    {
+        fPlugin.deactivate();
+    }
+
+    // -------------------------------------------------------------------
+
+    void lv2_connect_port(const uint32_t port, void* const dataLocation)
+    {
+        uint32_t index = 0;
+
+#if DISTRHO_PLUGIN_NUM_INPUTS > 0
+        for (uint32_t i=0; i < DISTRHO_PLUGIN_NUM_INPUTS; ++i)
+        {
+            if (port == index++)
+            {
+                fPortAudioIns[i] = (float*)dataLocation;
+                return;
+            }
+        }
+#endif
+
+#if DISTRHO_PLUGIN_NUM_OUTPUTS > 0
+        for (uint32_t i=0; i < DISTRHO_PLUGIN_NUM_OUTPUTS; ++i)
+        {
+            if (port == index++)
+            {
+                fPortAudioOuts[i] = (float*)dataLocation;
+                return;
+            }
+        }
+#endif
+
+#if DISTRHO_LV2_USE_EVENTS_IN
+        if (port == index++)
+        {
+            fPortEventsIn = (LV2_Atom_Sequence*)dataLocation;
+            return;
+        }
+#endif
+
+#if DISTRHO_LV2_USE_EVENTS_OUT
+        if (port == index++)
+        {
+            fPortEventsOut = (LV2_Atom_Sequence*)dataLocation;
+            return;
+        }
+#endif
+
+#if DISTRHO_PLUGIN_WANT_LATENCY
+        if (port == index++)
+        {
+            fPortLatency = (float*)dataLocation;
+            return;
+        }
+#endif
+
+        for (uint32_t i=0, count=fPlugin.getParameterCount(); i < count; ++i)
+        {
+            if (port == index++)
+            {
+                fPortControls[i] = (float*)dataLocation;
+                return;
+            }
+        }
+    }
+
+    // -------------------------------------------------------------------
+
+    void lv2_run(const uint32_t sampleCount)
+    {
+        // pre-roll
+        if (sampleCount == 0)
+            return updateParameterOutputs();
+
+        // Check for updated parameters
+        float curValue;
+
+        for (uint32_t i=0, count=fPlugin.getParameterCount(); i < count; ++i)
+        {
+            if (fPortControls[i] == nullptr)
+                continue;
+
+            curValue = *fPortControls[i];
+
+            if (fLastControlValues[i] != curValue && ! fPlugin.isParameterOutput(i))
+            {
+                fLastControlValues[i] = curValue;
+                fPlugin.setParameterValue(i, curValue);
+            }
+        }
+
+#if DISTRHO_LV2_USE_EVENTS_IN
+# if DISTRHO_PLUGIN_IS_SYNTH
+        uint32_t midiEventCount = 0;
+# endif
+        LV2_ATOM_SEQUENCE_FOREACH(fPortEventsIn, event)
+        {
+            if (event == nullptr)
+                break;
+
+# if DISTRHO_PLUGIN_IS_SYNTH
+            if (event->body.type == fURIDs.midiEvent)
+            {
+                if (event->body.size > 4 || midiEventCount >= kMaxMidiEvents)
+                    continue;
+
+                const uint8_t* const data((const uint8_t*)(event + 1));
+
+                MidiEvent& midiEvent(fMidiEvents[midiEventCount]);
+
+                midiEvent.frame = event->time.frames;
+                midiEvent.size  = event->body.size;
+
+                uint8_t i;
+                for (i=0; i < midiEvent.size; ++i)
+                    midiEvent.buf[i] = data[i];
+                for (; i < 4; ++i)
+                  midiEvent.buf[i] = 0;
+
+                ++midiEventCount;
+                continue;
+            }
+# endif
+# if DISTRHO_PLUGIN_WANT_TIMEPOS
+            if (event->body.type == fURIDs.timePosition)
+            {
+                // TODO
+            }
+# endif
+# if (DISTRHO_PLUGIN_WANT_STATE && DISTRHO_PLUGIN_HAS_UI)
+            if (event->body.type == fURIDs.distrhoState && fWorker != nullptr)
+            {
+                const void* const data((const void*)(event + 1));
+                fWorker->schedule_work(fWorker->handle, event->body.size, data);
+            }
+# endif
+        }
+#endif
+
+#if DISTRHO_PLUGIN_IS_SYNTH
+        fPlugin.run(fPortAudioIns, fPortAudioOuts, sampleCount, fMidiEvents, midiEventCount);
+#else
+        fPlugin.run(fPortAudioIns, fPortAudioOuts, sampleCount);
+#endif
+
+#if DISTRHO_LV2_USE_EVENTS_OUT
+#endif
+
+        updateParameterOutputs();
+    }
+
+    // -------------------------------------------------------------------
+
+    uint32_t lv2_get_options(LV2_Options_Option* const /*options*/)
+    {
+        // currently unused
+        return LV2_OPTIONS_ERR_UNKNOWN;
+    }
+
+    uint32_t lv2_set_options(const LV2_Options_Option* const options)
+    {
+        for (int i=0; options[i].key != 0; ++i)
+        {
+            if (options[i].key == fUridMap->map(fUridMap->handle, LV2_BUF_SIZE__maxBlockLength))
+            {
+                if (options[i].type == fUridMap->map(fUridMap->handle, LV2_ATOM__Int))
+                {
+                    const int bufferSize(*(const int*)options[i].value);
+                    fPlugin.setBufferSize(bufferSize);
+                    return LV2_OPTIONS_SUCCESS;
+                }
+                else
+                {
+                    d_stderr("Host changed maxBlockLength but with wrong value type");
+                    return LV2_OPTIONS_ERR_BAD_VALUE;
+                }
+            }
+            else if (options[i].key == fUridMap->map(fUridMap->handle, LV2_CORE__sampleRate))
+            {
+                if (options[i].type == fUridMap->map(fUridMap->handle, LV2_ATOM__Double))
+                {
+                    const double sampleRate(*(const double*)options[i].value);
+                    fPlugin.setSampleRate(sampleRate);
+                    return LV2_OPTIONS_SUCCESS;
+                }
+                else
+                {
+                    d_stderr("Host changed sampleRate but with wrong value type");
+                    return LV2_OPTIONS_ERR_BAD_VALUE;
+                }
+            }
+        }
+
+        return LV2_OPTIONS_ERR_BAD_KEY;
+    }
+
+    // -------------------------------------------------------------------
+
+#if DISTRHO_PLUGIN_WANT_PROGRAMS
+    const LV2_Program_Descriptor* lv2_get_program(const uint32_t index)
+    {
+        if (index >= fPlugin.getProgramCount())
+            return nullptr;
+
+        static LV2_Program_Descriptor desc;
+
+        desc.bank    = index / 128;
+        desc.program = index % 128;
+        desc.name    = fPlugin.getProgramName(index);
+
+        return &desc;
+    }
+
+    void lv2_select_program(const uint32_t bank, const uint32_t program)
+    {
+        const uint32_t realProgram(bank * 128 + program);
+
+        if (realProgram >= fPlugin.getProgramCount())
+            return;
+
+        fPlugin.setProgram(realProgram);
+
+        // Update control inputs
+        for (uint32_t i=0, count=fPlugin.getParameterCount(); i < count; ++i)
+        {
+            if (fPlugin.isParameterOutput(i))
+                continue;
+
+            fLastControlValues[i] = fPlugin.getParameterValue(i);
+
+            if (fPortControls[i] != nullptr)
+                *fPortControls[i] = fLastControlValues[i];
+        }
+    }
+#endif
+
+    // -------------------------------------------------------------------
+
+#if DISTRHO_PLUGIN_WANT_STATE
+    LV2_State_Status lv2_save(const LV2_State_Store_Function store, const LV2_State_Handle handle, const uint32_t flags)
+    {
+        //flags = LV2_STATE_IS_POD | LV2_STATE_IS_PORTABLE;
+
+        for (auto it = fStateMap.begin(), end = fStateMap.end(); it != end; ++it)
+        {
+            const d_string& key   = it->first;
+            const d_string& value = it->second;
+
+            store(handle, fUridMap->map(fUridMap->handle, (const char*)key), (const char*)value, value.length()+1, fURIDs.atomString, flags);
+        }
+
+        return LV2_STATE_SUCCESS;
+    }
+
+    LV2_State_Status lv2_restore(const LV2_State_Retrieve_Function retrieve, const LV2_State_Handle handle)
+    {
+        size_t   size  = 0;
+        uint32_t type  = 0;
+        uint32_t flags = LV2_STATE_IS_POD | LV2_STATE_IS_PORTABLE;
+
+        for (uint32_t i=0, count=fPlugin.getStateCount(); i < count; ++i)
+        {
+            const d_string& key = fPlugin.getStateKey(i);
+
+            const void* data = retrieve(handle, fUridMap->map(fUridMap->handle, (const char*)key), &size, &type, &flags);
+
+            if (size == 0)
+                continue;
+            if (data == nullptr)
+                continue;
+            if (type != fURIDs.atomString)
+                continue;
+
+            const char* const value((const char*)data);
+
+            if (std::strlen(value) != size)
+                continue;
+
+            setState(key, value);
+        }
+
+        return LV2_STATE_SUCCESS;
+    }
+
+    // -------------------------------------------------------------------
+
+    LV2_Worker_Status lv2_work(const void* const data)
+    {
+        const char* const stateKey((const char*)data);
+        const char* const stateValue(stateKey+std::strlen(stateKey)+1);
+
+        setState(stateKey, stateValue);
+
+        return LV2_WORKER_SUCCESS;
+    }
+#endif
+
+    // -------------------------------------------------------------------
+
+private:
+    PluginExporter fPlugin;
+
+    // LV2 ports
+#if DISTRHO_PLUGIN_NUM_INPUTS > 0
+    float*  fPortAudioIns[DISTRHO_PLUGIN_NUM_INPUTS];
+#else
+    float** fPortAudioIns;
+#endif
+#if DISTRHO_PLUGIN_NUM_OUTPUTS > 0
+    float*  fPortAudioOuts[DISTRHO_PLUGIN_NUM_OUTPUTS];
+#else
+    float** fPortAudioOuts;
+#endif
+    float** fPortControls;
+#if DISTRHO_LV2_USE_EVENTS_IN
+    LV2_Atom_Sequence* fPortEventsIn;
+#endif
+#if DISTRHO_LV2_USE_EVENTS_OUT
+    LV2_Atom_Sequence* fPortEventsOut;
+#endif
+#if DISTRHO_PLUGIN_WANT_LATENCY
+    float* fPortLatency;
+#endif
+
+    // Temporary data
+    float* fLastControlValues;
+#if DISTRHO_PLUGIN_IS_SYNTH
+    MidiEvent fMidiEvents[kMaxMidiEvents];
+#endif
+
+    // LV2 URIDs
+#if DISTRHO_LV2_USE_EVENTS_IN || DISTRHO_LV2_USE_EVENTS_OUT
+    struct URIDs {
+        LV2_URID atomString;
+        LV2_URID distrhoState;
+        LV2_URID midiEvent;
+        LV2_URID timePosition;
+
+        URIDs(const LV2_URID_Map* const uridMap)
+            : atomString(uridMap->map(uridMap->handle, LV2_ATOM__String)),
+              distrhoState(uridMap->map(uridMap->handle, "urn:distrho:keyValueState")),
+              midiEvent(uridMap->map(uridMap->handle, LV2_MIDI__MidiEvent)),
+              timePosition(uridMap->map(uridMap->handle, LV2_TIME__Position)) {}
+    } fURIDs;
+#endif
+
+    // LV2 features
+    const LV2_URID_Map* const fUridMap;
+    const LV2_Worker_Schedule* const fWorker;
+
+#if DISTRHO_PLUGIN_WANT_STATE
+    StringMap fStateMap;
+
+    void setState(const char* const key, const char* const newValue)
+    {
+        fPlugin.setState(key, newValue);
+
+        // check if key already exists
+        for (auto it = fStateMap.begin(), end = fStateMap.end(); it != end; ++it)
+        {
+            const d_string& d_key = it->first;
+
+            if (d_key == key)
+            {
+                it->second = newValue;
+                return;
+            }
+        }
+
+        // add a new one then
+        d_string d_key(key);
+        fStateMap[d_key] = newValue;
+    }
+#endif
+
+    void updateParameterOutputs()
+    {
+        for (uint32_t i=0, count=fPlugin.getParameterCount(); i < count; ++i)
+        {
+            if (! fPlugin.isParameterOutput(i))
+                continue;
+
+            fLastControlValues[i] = fPlugin.getParameterValue(i);
+
+            if (fPortControls[i] != nullptr)
+                *fPortControls[i] = fLastControlValues[i];
+        }
+
+#if DISTRHO_PLUGIN_WANT_LATENCY
+        if (fPortLatency != nullptr)
+            *fPortLatency = fPlugin.getLatency();
+#endif
+    }
+};
+
+// -----------------------------------------------------------------------
+
+static LV2_Handle lv2_instantiate(const LV2_Descriptor*, double sampleRate, const char*, const LV2_Feature* const* features)
+{
+    const LV2_Options_Option* options = nullptr;
+    const LV2_URID_Map*       uridMap = nullptr;
+    const LV2_Worker_Schedule* worker = nullptr;
+
+    for (int i=0; features[i] != nullptr; ++i)
+    {
+        if (std::strcmp(features[i]->URI, LV2_OPTIONS__options) == 0)
+            options = (const LV2_Options_Option*)features[i]->data;
+        else if (std::strcmp(features[i]->URI, LV2_URID__map) == 0)
+            uridMap = (const LV2_URID_Map*)features[i]->data;
+        else if (std::strcmp(features[i]->URI, LV2_WORKER__schedule) == 0)
+            worker = (const LV2_Worker_Schedule*)features[i]->data;
+    }
+
+    if (options == nullptr)
+    {
+        d_stderr("Options feature missing, cannot continue!");
+        return nullptr;
+    }
+
+    if (uridMap == nullptr)
+    {
+        d_stderr("URID Map feature missing, cannot continue!");
+        return nullptr;
+    }
+
+#if DISTRHO_PLUGIN_WANT_STATE
+    if (worker == nullptr)
+    {
+        d_stderr("Worker feature missing, cannot continue!");
+        return nullptr;
+    }
+#endif
+
+    for (int i=0; options[i].key != 0; ++i)
+    {
+        if (options[i].key == uridMap->map(uridMap->handle, LV2_BUF_SIZE__maxBlockLength))
+        {
+            if (options[i].type == uridMap->map(uridMap->handle, LV2_ATOM__Int))
+                d_lastBufferSize = *(const int*)options[i].value;
+            else
+                d_stderr("Host provides maxBlockLength but has wrong value type");
+
+            break;
+        }
+    }
+
+    if (d_lastBufferSize == 0)
+        d_lastBufferSize = 2048;
+
+    d_lastSampleRate = sampleRate;
+
+    return new PluginLv2(uridMap, worker);
+}
+
+#define instancePtr ((PluginLv2*)instance)
+
+static void lv2_connect_port(LV2_Handle instance, uint32_t port, void* dataLocation)
+{
+    instancePtr->lv2_connect_port(port, dataLocation);
+}
+
+static void lv2_activate(LV2_Handle instance)
+{
+    instancePtr->lv2_activate();
+}
+
+static void lv2_run(LV2_Handle instance, uint32_t sampleCount)
+{
+    instancePtr->lv2_run(sampleCount);
+}
+
+static void lv2_deactivate(LV2_Handle instance)
+{
+    instancePtr->lv2_deactivate();
+}
+
+static void lv2_cleanup(LV2_Handle instance)
+{
+    delete instancePtr;
+}
+
+// -----------------------------------------------------------------------
+
+static uint32_t lv2_get_options(LV2_Handle instance, LV2_Options_Option* options)
+{
+    return instancePtr->lv2_get_options(options);
+}
+
+static uint32_t lv2_set_options(LV2_Handle instance, const LV2_Options_Option* options)
+{
+    return instancePtr->lv2_set_options(options);
+}
+
+// -----------------------------------------------------------------------
+
+#if DISTRHO_PLUGIN_WANT_PROGRAMS
+static const LV2_Program_Descriptor* lv2_get_program(LV2_Handle instance, uint32_t index)
+{
+    return instancePtr->lv2_get_program(index);
+}
+
+static void lv2_select_program(LV2_Handle instance, uint32_t bank, uint32_t program)
+{
+    instancePtr->lv2_select_program(bank, program);
+}
+#endif
+
+// -----------------------------------------------------------------------
+
+#if DISTRHO_PLUGIN_WANT_STATE
+static LV2_State_Status lv2_save(LV2_Handle instance, LV2_State_Store_Function store, LV2_State_Handle handle, uint32_t flags, const LV2_Feature* const*)
+{
+    return instancePtr->lv2_save(store, handle, flags);
+}
+
+static LV2_State_Status lv2_restore(LV2_Handle instance, LV2_State_Retrieve_Function retrieve, LV2_State_Handle handle, uint32_t, const LV2_Feature* const*)
+{
+    return instancePtr->lv2_restore(retrieve, handle);
+}
+
+LV2_Worker_Status lv2_work(LV2_Handle instance, LV2_Worker_Respond_Function, LV2_Worker_Respond_Handle, uint32_t, const void* data)
+{
+    return instancePtr->lv2_work(data);
+}
+#endif
+
+// -----------------------------------------------------------------------
+
+static const void* lv2_extension_data(const char* uri)
+{
+    static const LV2_Options_Interface options = { lv2_get_options, lv2_set_options };
+
+    if (std::strcmp(uri, LV2_OPTIONS__interface) == 0)
+        return &options;
+
+#if DISTRHO_PLUGIN_WANT_PROGRAMS
+    static const LV2_Programs_Interface programs = { lv2_get_program, lv2_select_program };
+
+    if (std::strcmp(uri, LV2_PROGRAMS__Interface) == 0)
+        return &programs;
+#endif
+
+#if DISTRHO_PLUGIN_WANT_STATE
+    static const LV2_State_Interface state = { lv2_save, lv2_restore };
+    static const LV2_Worker_Interface worker = { lv2_work, nullptr, nullptr };
+
+    if (std::strcmp(uri, LV2_STATE__interface) == 0)
+        return &state;
+    if (std::strcmp(uri, LV2_WORKER__interface) == 0)
+        return &worker;
+#endif
+
+    return nullptr;
+}
+
+#undef instancePtr
+
+// -----------------------------------------------------------------------
+
+static const LV2_Descriptor sLv2Descriptor = {
+    DISTRHO_PLUGIN_URI,
+    lv2_instantiate,
+    lv2_connect_port,
+    lv2_activate,
+    lv2_run,
+    lv2_deactivate,
+    lv2_cleanup,
+    lv2_extension_data
+};
+
+// -----------------------------------------------------------------------
+
+END_NAMESPACE_DISTRHO
+
+DISTRHO_PLUGIN_EXPORT
+const LV2_Descriptor* lv2_descriptor(uint32_t index)
+{
+    USE_NAMESPACE_DISTRHO
+    return (index == 0) ? &sLv2Descriptor : nullptr;
+}
+
+// -----------------------------------------------------------------------

distrho/src/DistrhoPluginLV2export.cpp

@@ -0,0 +1,367 @@
+/*
+ * DISTRHO Plugin Toolkit (DPT)
+ * Copyright (C) 2012-2013 Filipe Coelho <falktx@falktx.com>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any purpose with
+ * or without fee is hereby granted, provided that the above copyright notice and this
+ * permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD
+ * TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN
+ * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+ * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
+ * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include "DistrhoPluginInternal.hpp"
+
+#include "lv2/atom.h"
+#include "lv2/buf-size.h"
+#include "lv2/midi.h"
+#include "lv2/options.h"
+#include "lv2/state.h"
+#include "lv2/time.h"
+#include "lv2/ui.h"
+#include "lv2/units.h"
+#include "lv2/urid.h"
+#include "lv2/worker.h"
+#include "lv2/lv2_programs.h"
+
+#include <fstream>
+#include <iostream>
+
+#ifndef DISTRHO_PLUGIN_URI
+# error DISTRHO_PLUGIN_URI undefined!
+#endif
+
+#define DISTRHO_LV2_USE_EVENTS_IN  (DISTRHO_PLUGIN_IS_SYNTH || DISTRHO_PLUGIN_WANT_TIMEPOS || (DISTRHO_PLUGIN_WANT_STATE && DISTRHO_PLUGIN_HAS_UI))
+#define DISTRHO_LV2_USE_EVENTS_OUT (DISTRHO_PLUGIN_WANT_STATE && DISTRHO_PLUGIN_HAS_UI)
+
+// -----------------------------------------------------------------------
+
+DISTRHO_PLUGIN_EXPORT
+void lv2_generate_ttl(const char* const basename)
+{
+    USE_NAMESPACE_DISTRHO
+
+    // Dummy plugin to get data from
+    d_lastBufferSize = 512;
+    d_lastSampleRate = 44100.0;
+    PluginExporter plugin;
+    d_lastBufferSize = 0;
+    d_lastSampleRate = 0.0;
+
+    d_string pluginLabel(basename);
+    d_string pluginTTL(pluginLabel + ".ttl");
+
+    // ---------------------------------------------
+
+    {
+        std::cout << "Writing manifest.ttl..."; std::cout.flush();
+        std::fstream manifestFile("manifest.ttl", std::ios::out);
+
+        d_string manifestString;
+        manifestString += "@prefix lv2:  <" LV2_CORE_PREFIX "> .\n";
+        manifestString += "@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .\n";
+#if DISTRHO_PLUGIN_HAS_UI
+        manifestString += "@prefix ui:   <" LV2_UI_PREFIX "> .\n";
+#endif
+        manifestString += "\n";
+
+        manifestString += "<" DISTRHO_PLUGIN_URI ">\n";
+        manifestString += "    a lv2:Plugin ;\n";
+        manifestString += "    lv2:binary <" + pluginLabel + "." DISTRHO_DLL_EXTENSION "> ;\n";
+        manifestString += "    rdfs:seeAlso <" + pluginTTL + "> .\n";
+        manifestString += "\n";
+
+#if DISTRHO_PLUGIN_HAS_UI
+        manifestString += "<" DISTRHO_UI_URI ">\n";
+# if DISTRHO_OS_HAIKU
+        manifestString += "    a ui:BeUI ;\n";
+# elif DISTRHO_OS_MACOS
+        manifestString += "    a ui:CocoaUI ;\n";
+# elif DISTRHO_OS_WINDOWS
+        manifestString += "    a ui:WindowsUI ;\n";
+# else
+        manifestString += "    a ui:X11UI ;\n";
+# endif
+        manifestString += "    ui:binary <" + pluginLabel + "_ui." DISTRHO_DLL_EXTENSION "> ;\n";
+#if DISTRHO_PLUGIN_WANT_PROGRAMS
+        manifestString += "    lv2:extensionData ui:idleInterface ,\n";
+        manifestString += "                      <" LV2_PROGRAMS__Interface "> ;\n";
+#else
+        manifestString += "    lv2:extensionData ui:idleInterface ;\n";
+#endif
+        manifestString += "    lv2:optionalFeature ui:noUserResize ,\n";
+        manifestString += "                        ui:touch ;\n";
+        manifestString += "    lv2:requiredFeature ui:resize ,\n";
+        manifestString += "                        <" LV2_OPTIONS__options "> ,\n";
+        manifestString += "                        <" LV2_URID__map "> .\n";
+#endif
+
+        manifestFile << manifestString << std::endl;
+        manifestFile.close();
+        std::cout << " done!" << std::endl;
+    }
+
+    // ---------------------------------------------
+
+    {
+        std::cout << "Writing " << pluginTTL << "..."; std::cout.flush();
+        std::fstream pluginFile(pluginTTL, std::ios::out);
+
+        d_string pluginString;
+
+        // header
+#if DISTRHO_LV2_USE_EVENTS_IN
+        pluginString += "@prefix atom: <" LV2_ATOM_PREFIX "> .\n";
+#endif
+        pluginString += "@prefix doap: <http://usefulinc.com/ns/doap#> .\n";
+        pluginString += "@prefix foaf: <http://xmlns.com/foaf/0.1/> .\n";
+        pluginString += "@prefix lv2:  <" LV2_CORE_PREFIX "> .\n";
+#if DISTRHO_PLUGIN_HAS_UI
+        pluginString += "@prefix ui:   <" LV2_UI_PREFIX "> .\n";
+#endif
+        pluginString += "@prefix unit: <" LV2_UNITS_PREFIX "> .\n";
+        pluginString += "\n";
+
+        // plugin
+        pluginString += "<" DISTRHO_PLUGIN_URI ">\n";
+#if DISTRHO_PLUGIN_IS_SYNTH
+        pluginString += "    a lv2:InstrumentPlugin, lv2:Plugin ;\n";
+#else
+        pluginString += "    a lv2:Plugin ;\n";
+#endif
+        pluginString += "\n";
+
+        // extensionData
+        pluginString += "    lv2:extensionData <" LV2_STATE__interface "> ";
+#if DISTRHO_PLUGIN_WANT_STATE
+        pluginString += ",\n                      <" LV2_OPTIONS__interface "> ";
+        pluginString += ",\n                      <" LV2_WORKER__interface "> ";
+#endif
+#if DISTRHO_PLUGIN_WANT_PROGRAMS
+        pluginString += ",\n                      <" LV2_PROGRAMS__Interface "> ";
+#endif
+        pluginString += ";\n\n";
+
+        // optionalFeatures
+        pluginString += "    lv2:optionalFeature <" LV2_CORE__hardRTCapable "> ,\n";
+        pluginString += "                        <" LV2_BUF_SIZE__boundedBlockLength "> ;\n";
+        pluginString += "\n";
+
+        // requiredFeatures
+        pluginString += "    lv2:requiredFeature <" LV2_OPTIONS__options "> ";
+        pluginString += ",\n                        <" LV2_URID__map "> ";
+#if DISTRHO_PLUGIN_WANT_STATE
+        pluginString += ",\n                        <" LV2_WORKER__schedule "> ";
+#endif
+        pluginString += ";\n\n";
+
+        // UI
+#if DISTRHO_PLUGIN_HAS_UI
+        pluginString += "    ui:ui <" DISTRHO_UI_URI "> ;\n";
+        pluginString += "\n";
+#endif
+
+        {
+            uint32_t portIndex = 0;
+
+#if DISTRHO_PLUGIN_NUM_INPUTS > 0
+            for (uint32_t i=0; i < DISTRHO_PLUGIN_NUM_INPUTS; ++i, ++portIndex)
+            {
+                if (i == 0)
+                    pluginString += "    lv2:port [\n";
+                else
+                    pluginString += "    [\n";
+
+                pluginString += "        a lv2:InputPort, lv2:AudioPort ;\n";
+                pluginString += "        lv2:index " + d_string(portIndex) + " ;\n";
+                pluginString += "        lv2:symbol \"lv2_audio_in_" + d_string(i+1) + "\" ;\n";
+                pluginString += "        lv2:name \"Audio Input " + d_string(i+1) + "\" ;\n";
+
+                if (i+1 == DISTRHO_PLUGIN_NUM_INPUTS)
+                    pluginString += "    ] ;\n\n";
+                else
+                    pluginString += "    ] ,\n";
+            }
+            pluginString += "\n";
+#endif
+
+#if DISTRHO_PLUGIN_NUM_OUTPUTS > 0
+            for (uint32_t i=0; i < DISTRHO_PLUGIN_NUM_OUTPUTS; ++i, ++portIndex)
+            {
+                if (i == 0)
+                    pluginString += "    lv2:port [\n";
+                else
+                    pluginString += "    [\n";
+
+                pluginString += "        a lv2:OutputPort, lv2:AudioPort ;\n";
+                pluginString += "        lv2:index " + d_string(portIndex) + " ;\n";
+                pluginString += "        lv2:symbol \"lv2_audio_out_" + d_string(i+1) + "\" ;\n";
+                pluginString += "        lv2:name \"Audio Output " + d_string(i+1) + "\" ;\n";
+
+                if (i+1 == DISTRHO_PLUGIN_NUM_OUTPUTS)
+                    pluginString += "    ] ;\n\n";
+                else
+                    pluginString += "    ] ,\n";
+            }
+            pluginString += "\n";
+#endif
+
+#if DISTRHO_LV2_USE_EVENTS_IN
+            pluginString += "    lv2:port [\n";
+            pluginString += "        a lv2:InputPort, atom:AtomPort ;\n";
+            pluginString += "        lv2:index " + d_string(portIndex) + " ;\n";
+            pluginString += "        lv2:name \"Events Input\" ;\n";
+            pluginString += "        lv2:symbol \"lv2_events_in\" ;\n";
+            pluginString += "        atom:bufferType atom:Sequence ;\n";
+# if (DISTRHO_PLUGIN_WANT_STATE && DISTRHO_PLUGIN_HAS_UI)
+            pluginString += "        atom:supports <" LV2_ATOM__String "> ;\n";
+# endif
+# if DISTRHO_PLUGIN_WANT_TIMEPOS
+            pluginString += "        atom:supports <" LV2_TIME__Position "> ;\n";
+# endif
+# if DISTRHO_PLUGIN_IS_SYNTH
+            pluginString += "        atom:supports <" LV2_MIDI__MidiEvent "> ;\n";
+# endif
+
+            pluginString += "    ] ;\n\n";
+            ++portIndex;
+#endif
+
+#if DISTRHO_LV2_USE_EVENTS_OUT
+            pluginString += "    lv2:port [\n";
+            pluginString += "        a lv2:OutputPort, atom:AtomPort ;\n";
+            pluginString += "        lv2:index " + d_string(portIndex) + " ;\n";
+            pluginString += "        lv2:name \"Events Output\" ;\n";
+            pluginString += "        lv2:symbol \"lv2_events_out\" ;\n";
+            pluginString += "        atom:bufferType atom:Sequence ;\n";
+            pluginString += "        atom:supports <" LV2_ATOM__String "> ;\n";
+            pluginString += "    ] ;\n\n";
+            ++portIndex;
+#endif
+
+#if DISTRHO_PLUGIN_WANT_LATENCY
+            pluginString += "    lv2:port [\n";
+            pluginString += "        a lv2:OutputPort, lv2:ControlPort ;\n";
+            pluginString += "        lv2:index " + d_string(portIndex) + " ;\n";
+            pluginString += "        lv2:name \"Latency\" ;\n";
+            pluginString += "        lv2:symbol \"lv2_latency\" ;\n";
+            pluginString += "        lv2:designation lv2:latency ;\n";
+            pluginString += "        lv2:portProperty lv2:reportsLatency ;\n";
+            pluginString += "    ] ;\n\n";
+            ++portIndex;
+#endif
+
+            for (uint32_t i=0, count=plugin.getParameterCount(); i < count; ++i, ++portIndex)
+            {
+                if (i == 0)
+                    pluginString += "    lv2:port [\n";
+                else
+                    pluginString += "    [\n";
+
+                if (plugin.isParameterOutput(i))
+                    pluginString += "        a lv2:OutputPort, lv2:ControlPort ;\n";
+                else
+                    pluginString += "        a lv2:InputPort, lv2:ControlPort ;\n";
+
+                pluginString += "        lv2:index " + d_string(portIndex) + " ;\n";
+                pluginString += "        lv2:name \"" + plugin.getParameterName(i) + "\" ;\n";
+
+                // symbol
+                {
+                    d_string symbol(plugin.getParameterSymbol(i));
+
+                    if (symbol.isEmpty())
+                        symbol = "lv2_port_" + d_string(portIndex-1);
+
+                    pluginString += "        lv2:symbol \"" + symbol + "\" ;\n";
+                }
+
+                // ranges
+                {
+                    const ParameterRanges& ranges(plugin.getParameterRanges(i));
+
+                    if (plugin.getParameterHints(i) & PARAMETER_IS_INTEGER)
+                    {
+                        pluginString += "        lv2:default " + d_string(int(plugin.getParameterValue(i))) + " ;\n";
+                        pluginString += "        lv2:minimum " + d_string(int(ranges.min)) + " ;\n";
+                        pluginString += "        lv2:maximum " + d_string(int(ranges.max)) + " ;\n";
+                    }
+                    else
+                    {
+                        pluginString += "        lv2:default " + d_string(plugin.getParameterValue(i)) + " ;\n";
+                        pluginString += "        lv2:minimum " + d_string(ranges.min) + " ;\n";
+                        pluginString += "        lv2:maximum " + d_string(ranges.max) + " ;\n";
+                    }
+                }
+
+                // unit
+                {
+                    const d_string& unit(plugin.getParameterUnit(i));
+
+                    if (! unit.isEmpty())
+                    {
+                        if (unit == "db" || unit == "dB")
+                        {
+                            pluginString += "        unit:unit unit:db ;\n";
+                        }
+                        else if (unit == "hz" || unit == "Hz")
+                        {
+                            pluginString += "        unit:unit unit:hz ;\n";
+                        }
+                        else if (unit == "khz" || unit == "kHz")
+                        {
+                            pluginString += "        unit:unit unit:khz ;\n";
+                        }
+                        else if (unit == "mhz" || unit == "mHz")
+                        {
+                            pluginString += "        unit:unit unit:mhz ;\n";
+                        }
+                        else if (unit == "%")
+                        {
+                            pluginString += "        unit:unit unit:pc ;\n";
+                        }
+                        else
+                        {
+                            pluginString += "        unit:unit [\n";
+                            pluginString += "            a unit:Unit ;\n";
+                            pluginString += "            unit:name   \"" + unit + "\" ;\n";
+                            pluginString += "            unit:symbol \"" + unit + "\" ;\n";
+                            pluginString += "            unit:render \"%f " + unit + "\" ;\n";
+                            pluginString += "        ] ;\n";
+                        }
+                    }
+                }
+
+                // hints
+                {
+                    const uint32_t hints(plugin.getParameterHints(i));
+
+                    if (hints & PARAMETER_IS_BOOLEAN)
+                        pluginString += "        lv2:portProperty lv2:toggled ;\n";
+                    if (hints & PARAMETER_IS_INTEGER)
+                        pluginString += "        lv2:portProperty lv2:integer ;\n";
+                    if (hints & PARAMETER_IS_LOGARITHMIC)
+                        pluginString += "        lv2:portProperty <http://lv2plug.in/ns/ext/port-props#logarithmic> ;\n";
+                    if ((hints & PARAMETER_IS_AUTOMABLE) == 0 && ! plugin.isParameterOutput(i))
+                        pluginString += "        lv2:portProperty <http://lv2plug.in/ns/ext/port-props#expensive> ;\n";
+                }
+
+                if (i+1 == count)
+                    pluginString += "    ] ;\n\n";
+                else
+                    pluginString += "    ] ,\n";
+            }
+        }
+
+        pluginString += "    doap:name \"" + d_string(plugin.getName()) + "\" ;\n";
+        pluginString += "    doap:maintainer [ foaf:name \"" + d_string(plugin.getMaker()) + "\" ] .\n";
+
+        pluginFile << pluginString << std::endl;
+        pluginFile.close();
+        std::cout << " done!" << std::endl;
+    }
+}

distrho/src/DistrhoPluginVST.cpp

@@ -0,0 +1,963 @@
+/*
+ * DISTRHO Plugin Toolkit (DPT)
+ * Copyright (C) 2012-2013 Filipe Coelho <falktx@falktx.com>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any purpose with
+ * or without fee is hereby granted, provided that the above copyright notice and this
+ * permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD
+ * TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN
+ * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+ * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
+ * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include "DistrhoPluginInternal.hpp"
+
+#if DISTRHO_PLUGIN_HAS_UI
+# include "DistrhoUIInternal.hpp"
+#endif
+
+#ifndef __cdecl
+# define __cdecl
+#endif
+
+// has some conflicts
+#ifdef noexcept
+# undef noexcept
+#endif
+
+#define VESTIGE_HEADER
+#define VST_FORCE_DEPRECATED 0
+
+#include <map>
+#include <string>
+
+#ifdef VESTIGE_HEADER
+# include "vestige/aeffectx.h"
+#define effFlagsProgramChunks (1 << 5)
+#define effGetParamLabel 6
+#define effGetParamDisplay 7
+#define effGetChunk 23
+#define effSetChunk 24
+#define effCanBeAutomated 26
+#define effGetProgramNameIndexed 29
+#define effGetPlugCategory 35
+#define kPlugCategEffect 1
+#define kPlugCategSynth 2
+#define kVstVersion 2400
+struct ERect {
+    int16_t top, left, bottom, right;
+};
+#else
+# include "vst/aeffectx.h"
+#endif
+
+typedef std::map<d_string,d_string> StringMap;
+
+START_NAMESPACE_DISTRHO
+
+// -----------------------------------------------------------------------
+
+void strncpy(char* const dst, const char* const src, const size_t size)
+{
+    std::strncpy(dst, src, size);
+    dst[size] = '\0';
+}
+
+// -----------------------------------------------------------------------
+
+#if DISTRHO_PLUGIN_WANT_STATE
+class StateHelper
+{
+public:
+    virtual ~StateHelper() {}
+    virtual void setSharedState(const char* const newKey, const char* const newValue) = 0;
+};
+#else
+typedef void StateHelper;
+#endif
+
+// -----------------------------------------------------------------------
+
+#if DISTRHO_PLUGIN_HAS_UI
+class UIVst
+{
+public:
+    UIVst(const audioMasterCallback audioMaster, AEffect* const effect, PluginExporter* const plugin, StateHelper* const stateHelper, const intptr_t winId)
+        : fAudioMaster(audioMaster),
+          fEffect(effect),
+          fPlugin(plugin),
+          fStateHelper(stateHelper),
+          fUI(this, winId, editParameterCallback, setParameterCallback, setStateCallback, sendNoteCallback, uiResizeCallback),
+          fParameterChecks(nullptr),
+          fParameterValues(nullptr)
+    {
+        const uint32_t paramCount(plugin->getParameterCount());
+
+        if (paramCount > 0)
+        {
+            fParameterChecks = new bool[paramCount];
+            fParameterValues = new float[paramCount];
+
+            for (uint32_t i=0; i < paramCount; ++i)
+            {
+                fParameterChecks[i] = false;
+                fParameterValues[i] = 0.0f;
+            }
+        }
+
+#if DISTRHO_PLUGIN_WANT_PROGRAMS
+        fNextProgram = -1;
+#endif
+    }
+
+    ~UIVst()
+    {
+        if (fParameterChecks != nullptr)
+        {
+            delete[] fParameterChecks;
+            fParameterChecks = nullptr;
+        }
+
+        if (fParameterValues != nullptr)
+        {
+            delete[] fParameterValues;
+            fParameterValues = nullptr;
+        }
+    }
+
+    // -------------------------------------------------------------------
+
+    void idle()
+    {
+#if DISTRHO_PLUGIN_WANT_PROGRAMS
+        if (fNextProgram != -1)
+        {
+            fUI.programChanged(fNextProgram);
+            fNextProgram = -1;
+        }
+#endif
+
+        for (uint32_t i=0, count = fPlugin->getParameterCount(); i < count; ++i)
+        {
+            if (fParameterChecks[i])
+            {
+                fParameterChecks[i] = false;
+                fUI.parameterChanged(i, fParameterValues[i]);
+            }
+        }
+
+        fUI.idle();
+    }
+
+    int16_t getWidth() const
+    {
+        return fUI.getWidth();
+    }
+
+    int16_t getHeight() const
+    {
+        return fUI.getHeight();
+    }
+
+    // -------------------------------------------------------------------
+    // functions called from the plugin side, RT no block
+
+    void setParameterValueFromPlugin(const uint32_t index, const float perValue)
+    {
+        fParameterChecks[index] = true;
+        fParameterValues[index] = perValue;
+    }
+
+#if DISTRHO_PLUGIN_WANT_PROGRAMS
+    void setProgramFromPlugin(const uint32_t index)
+    {
+        fNextProgram = index;
+
+        // set previous parameters invalid
+        for (uint32_t i=0, count = fPlugin->getParameterCount(); i < count; ++i)
+            fParameterChecks[i] = false;
+    }
+#endif
+
+    // -------------------------------------------------------------------
+    // functions called from the plugin side, block
+
+#if DISTRHO_PLUGIN_WANT_STATE
+    void setStateFromPlugin(const char* const key, const char* const value)
+    {
+        fUI.stateChanged(key, value);
+    }
+#endif
+
+    // -------------------------------------------------------------------
+
+protected:
+    intptr_t hostCallback(const int32_t opcode, const int32_t index, const intptr_t value, void* const ptr, const float opt)
+    {
+        return fAudioMaster(fEffect, opcode, index, value, ptr, opt);
+    }
+
+    void editParameter(const uint32_t index, const bool started)
+    {
+        if (started)
+            hostCallback(audioMasterBeginEdit, index, 0, nullptr, 0.0f);
+        else
+            hostCallback(audioMasterEndEdit, index, 0, nullptr, 0.0f);
+    }
+
+    void setParameterValue(const uint32_t index, const float realValue)
+    {
+        const ParameterRanges& ranges(fPlugin->getParameterRanges(index));
+        const float perValue(ranges.getNormalizedValue(realValue));
+
+        fPlugin->setParameterValue(index, realValue);
+        hostCallback(audioMasterAutomate, index, 0, nullptr, perValue);
+    }
+
+    void setState(const char* const key, const char* const value)
+    {
+#if DISTRHO_PLUGIN_WANT_STATE
+        fStateHelper->setSharedState(key, value);
+#else
+        return; // unused
+        (void)key;
+        (void)value;
+#endif
+    }
+
+    void sendNote(const uint8_t channel, const uint8_t note, const uint8_t velocity)
+    {
+#if 0 //DISTRHO_PLUGIN_IS_SYNTH
+        // TODO
+#else
+        return; // unused
+        (void)channel;
+        (void)note;
+        (void)velocity;
+#endif
+    }
+
+    void uiResize(const unsigned int width, const unsigned int height)
+    {
+        fUI.setSize(width, height);
+        hostCallback(audioMasterSizeWindow, width, height, nullptr, 0.0f);
+    }
+
+private:
+    // Vst stuff
+    const audioMasterCallback fAudioMaster;
+    AEffect* const fEffect;
+    PluginExporter* const fPlugin;
+    StateHelper* const fStateHelper;
+
+    // Plugin UI
+    UIExporter fUI;
+
+    // Temporary data
+    bool*  fParameterChecks;
+    float* fParameterValues;
+#if DISTRHO_PLUGIN_WANT_PROGRAMS
+    int32_t fNextProgram;
+#endif
+
+    // -------------------------------------------------------------------
+    // Callbacks
+
+    #define handlePtr ((UIVst*)ptr)
+
+    static void editParameterCallback(void* ptr, uint32_t index, bool started)
+    {
+        handlePtr->editParameter(index, started);
+    }
+
+    static void setParameterCallback(void* ptr, uint32_t rindex, float value)
+    {
+        handlePtr->setParameterValue(rindex, value);
+    }
+
+    static void setStateCallback(void* ptr, const char* key, const char* value)
+    {
+        handlePtr->setState(key, value);
+    }
+
+    static void sendNoteCallback(void* ptr, uint8_t channel, uint8_t note, uint8_t velocity)
+    {
+        handlePtr->sendNote(channel, note, velocity);
+    }
+
+    static void uiResizeCallback(void* ptr, unsigned int width, unsigned int height)
+    {
+        handlePtr->uiResize(width, height);
+    }
+
+    #undef handlePtr
+};
+#endif
+
+// -----------------------------------------------------------------------
+
+#if DISTRHO_PLUGIN_WANT_STATE
+class PluginVst : public StateHelper
+#else
+class PluginVst
+#endif
+{
+public:
+    PluginVst(const audioMasterCallback audioMaster, AEffect* const effect)
+        : fAudioMaster(audioMaster),
+          fEffect(effect)
+    {
+#if DISTRHO_PLUGIN_WANT_PROGRAMS
+        fCurProgram = -1;
+#endif
+
+#if DISTRHO_PLUGIN_IS_SYNTH
+        fMidiEventCount = 0;
+#endif
+
+#if DISTRHO_PLUGIN_HAS_UI
+        fVstUi          = nullptr;
+        fVstRect.top    = 0;
+        fVstRect.left   = 0;
+        fVstRect.bottom = 0;
+        fVstRect.right  = 0;
+#endif
+
+#if DISTRHO_PLUGIN_WANT_STATE
+        fStateChunk = nullptr;
+#endif
+    }
+
+#if DISTRHO_PLUGIN_WANT_STATE
+    ~PluginVst()
+    {
+        if (fStateChunk != nullptr)
+        {
+            delete[] fStateChunk;
+            fStateChunk = nullptr;
+        }
+
+        fStateMap.clear();
+    }
+#endif
+
+    intptr_t vst_dispatcher(const int32_t opcode, const int32_t index, const intptr_t value, void* const ptr, const float opt)
+    {
+        int32_t ret = 0;
+
+        switch (opcode)
+        {
+#if DISTRHO_PLUGIN_WANT_PROGRAMS
+        case effSetProgram:
+            if (value >= 0 && value < static_cast<intptr_t>(fPlugin.getProgramCount()))
+            {
+                fCurProgram = value;
+                fPlugin.setProgram(fCurProgram);
+
+#if DISTRHO_PLUGIN_HAS_UI
+                if (fVstUi != nullptr)
+                    fVstUi->setProgramFromPlugin(fCurProgram);
+#endif
+
+                ret = 1;
+            }
+            break;
+
+        case effGetProgram:
+            ret = fCurProgram;
+            break;
+
+        //case effSetProgramName:
+        // unsupported
+        //    break;
+
+        case effGetProgramName:
+            if (ptr != nullptr && fCurProgram >= 0 && fCurProgram < static_cast<int32_t>(fPlugin.getProgramCount()))
+            {
+                DISTRHO::strncpy((char*)ptr, fPlugin.getProgramName(fCurProgram), 24);
+                ret = 1;
+            }
+            break;
+#endif
+
+        case effGetParamDisplay:
+            if (ptr != nullptr && index < static_cast<int32_t>(fPlugin.getParameterCount()))
+            {
+                char* buf = (char*)ptr;
+                std::snprintf((char*)ptr, 8, "%f", fPlugin.getParameterValue(index));
+                buf[8] = '\0';
+                ret = 1;
+            }
+            break;
+
+        case effSetSampleRate:
+            fPlugin.setSampleRate(opt, true);
+            break;
+
+        case effSetBlockSize:
+            fPlugin.setBufferSize(value, true);
+            break;
+
+        case effMainsChanged:
+            if (value != 0)
+            {
+                fPlugin.activate();
+#if DISTRHO_PLUGIN_IS_SYNTH
+                fMidiEventCount = 0;
+#endif
+            }
+            else
+            {
+                fPlugin.deactivate();
+            }
+            break;
+
+#if DISTRHO_PLUGIN_HAS_UI
+        case effEditGetRect:
+            if (fVstUi != nullptr)
+            {
+                fVstRect.right  = fVstUi->getWidth();
+                fVstRect.bottom = fVstUi->getHeight();
+            }
+            else
+            {
+                d_lastUiSampleRate = fAudioMaster(fEffect, audioMasterGetSampleRate, 0, 0, nullptr, 0.0f);
+                UIExporter tmpUI(nullptr, 0, nullptr, nullptr, nullptr, nullptr, nullptr);
+                fVstRect.right  = tmpUI.getWidth();
+                fVstRect.bottom = tmpUI.getHeight();
+            }
+            *(ERect**)ptr = &fVstRect;
+            ret = 1;
+            break;
+
+        case effEditOpen:
+            if (fVstUi == nullptr)
+            {
+                d_lastUiSampleRate = fAudioMaster(fEffect, audioMasterGetSampleRate, 0, 0, nullptr, 0.0f);
+
+                fVstUi = new UIVst(fAudioMaster, fEffect, &fPlugin, this, (intptr_t)ptr);
+
+# if DISTRHO_PLUGIN_WANT_PROGRAMS
+                if (fCurProgram >= 0)
+                    fVstUi->setProgramFromPlugin(fCurProgram);
+# endif
+                for (uint32_t i=0, count = fPlugin.getParameterCount(); i < count; ++i)
+                    fVstUi->setParameterValueFromPlugin(i, fPlugin.getParameterValue(i));
+
+                fVstUi->idle();
+
+#if DISTRHO_PLUGIN_WANT_STATE
+                if (fStateMap.size() > 0)
+                {
+                    for (auto it = fStateMap.begin(), end = fStateMap.end(); it != end; ++it)
+                    {
+                        const d_string& key   = it->first;
+                        const d_string& value = it->second;
+
+                        fVstUi->setStateFromPlugin((const char*)key, (const char*)value);
+                    }
+
+                    fVstUi->idle();
+                }
+#endif
+                ret = 1;
+            }
+            break;
+
+        case effEditClose:
+            if (fVstUi != nullptr)
+            {
+                delete fVstUi;
+                fVstUi = nullptr;
+                ret = 1;
+            }
+            break;
+
+        case effEditIdle:
+            if (fVstUi != nullptr)
+                fVstUi->idle();
+            break;
+#endif
+
+#if DISTRHO_PLUGIN_WANT_STATE
+        case effGetChunk:
+            if (ptr == nullptr)
+                return 0;
+
+            if (fStateChunk != nullptr)
+                delete[] fStateChunk;
+
+            if (fStateMap.size() == 0)
+            {
+                fStateChunk    = new char[1];
+                fStateChunk[0] = '\0';
+                ret = 1;
+            }
+            else
+            {
+                std::string tmpStr;
+
+                for (auto it = fStateMap.begin(), end = fStateMap.end(); it != end; ++it)
+                {
+                    const d_string& key   = it->first;
+                    const d_string& value = it->second;
+
+                    tmpStr += (const char*)key;
+                    tmpStr += "\xff";
+                    tmpStr += (const char*)value;
+                    tmpStr += "\xff";
+                }
+
+                const size_t size(tmpStr.size());
+                fStateChunk = new char[size];
+                std::memcpy(fStateChunk, tmpStr.c_str(), size*sizeof(char));
+
+                for (size_t i=0; i < size; ++i)
+                {
+                    if (fStateChunk[i] == '\xff')
+                        fStateChunk[i] = '\0';
+                }
+
+                ret = size;
+            }
+
+            *(void**)ptr = fStateChunk;
+            break;
+
+        case effSetChunk:
+            if (value <= 0)
+                return 0;
+            if (value == 1)
+                return 1;
+
+            if (const char* const state = (const char*)ptr)
+            {
+                const size_t stateSize  = value;
+                const char*  stateKey   = state;
+                const char*  stateValue = nullptr;
+
+                for (size_t i=0; i < stateSize; ++i)
+                {
+                    // find next null char
+                    if (state[i] != '\0')
+                        continue;
+
+                    // found, set value
+                    stateValue = &state[i+1];
+                    setSharedState(stateKey, stateValue);
+
+                    if (fVstUi != nullptr)
+                        fVstUi->setStateFromPlugin(stateKey, stateValue);
+
+                    // increment text position
+                    i += std::strlen(stateValue) + 2;
+
+                    // check if end of data
+                    if (i >= stateSize)
+                        break;
+
+                    // get next key
+                    stateKey = &state[i];
+                }
+
+                ret = 1;
+            }
+
+            break;
+#endif
+
+#if DISTRHO_PLUGIN_IS_SYNTH
+        case effProcessEvents:
+            if (const VstEvents* const events = (const VstEvents*)ptr)
+            {
+                if (events->numEvents == 0)
+                    break;
+
+                for (int i=0, count=events->numEvents; i < count; ++i)
+                {
+                    const VstMidiEvent* const vstMidiEvent((const VstMidiEvent*)events->events[i]);
+
+                    if (vstMidiEvent == nullptr)
+                        break;
+                    if (vstMidiEvent->type != kVstMidiType)
+                        continue;
+                    if (fMidiEventCount >= kMaxMidiEvents)
+                        break;
+
+                    MidiEvent& midiEvent(fMidiEvents[fMidiEventCount++]);
+                    midiEvent.frame  = vstMidiEvent->deltaFrames;
+                    midiEvent.size   = 3;
+                    std::memcpy(midiEvent.buf, vstMidiEvent->midiData, 3*sizeof(uint8_t));
+                }
+            }
+            break;
+#endif
+
+        case effCanBeAutomated:
+            if (index < static_cast<int32_t>(fPlugin.getParameterCount()))
+            {
+                const uint32_t hints(fPlugin.getParameterHints(index));
+
+                // must be automable, and not output
+                if ((hints & PARAMETER_IS_AUTOMABLE) != 0 && (hints & PARAMETER_IS_OUTPUT) == 0)
+                    ret = 1;
+            }
+            break;
+
+#if (DISTRHO_PLUGIN_IS_SYNTH || DISTRHO_PLUGIN_WANT_TIMEPOS)
+        case effCanDo:
+            if (const char* const canDo = (const char*)ptr)
+            {
+# if DISTRHO_PLUGIN_IS_SYNTH
+                if (std::strcmp(canDo, "receiveVstEvents") == 0)
+                    return 1;
+                if (std::strcmp(canDo, "receiveVstMidiEvent") == 0)
+                    return 1;
+# endif
+# if DISTRHO_PLUGIN_WANT_TIMEPOS
+                if (std::strcmp(canDo, "receiveVstTimeInfo") == 0)
+                    return 1;
+# endif
+            }
+            break;
+#endif
+
+        //case effStartProcess:
+        //case effStopProcess:
+        // unused
+        //    break;
+        }
+
+        return ret;
+    }
+
+    float vst_getParameter(const int32_t index)
+    {
+        const ParameterRanges& ranges(fPlugin.getParameterRanges(index));
+        return ranges.getNormalizedValue(fPlugin.getParameterValue(index));
+    }
+
+    void vst_setParameter(const int32_t index, const float value)
+    {
+        const ParameterRanges& ranges(fPlugin.getParameterRanges(index));
+        const float realValue(ranges.getUnnormalizedValue(value));
+        fPlugin.setParameterValue(index, realValue);
+
+#if DISTRHO_PLUGIN_HAS_UI
+        if (fVstUi != nullptr)
+            fVstUi->setParameterValueFromPlugin(index, realValue);
+#endif
+    }
+
+    void vst_processReplacing(float** const inputs, float** const outputs, const int32_t sampleFrames)
+    {
+#if DISTRHO_PLUGIN_WANT_TIMEPOS
+        if (const VstTimeInfo* const timeInfo = (const VstTimeInfo*)fEffect->dispatcher(fEffect, audioMasterGetTime, 0, kVstTempoValid, nullptr, 0.0f))
+            fPlugin.setTimePos((timeInfo->flags & kVstTransportPlaying) != 0, timeInfo->samplePos, timeInfo->tempo);
+#endif
+
+#if DISTRHO_PLUGIN_IS_SYNTH
+        fPlugin.run(inputs, outputs, sampleFrames, fMidiEvents, fMidiEventCount);
+        fMidiEventCount = 0;
+#else
+        fPlugin.run(inputs, outputs, sampleFrames);
+#endif
+    }
+
+    // -------------------------------------------------------------------
+
+    friend class UIVst;
+
+private:
+    // VST stuff
+    const audioMasterCallback fAudioMaster;
+    AEffect* const fEffect;
+
+    // Plugin
+    PluginExporter fPlugin;
+
+#if DISTRHO_PLUGIN_WANT_PROGRAMS
+    int32_t fCurProgram;
+#endif
+
+#if DISTRHO_PLUGIN_IS_SYNTH
+    uint32_t  fMidiEventCount;
+    MidiEvent fMidiEvents[kMaxMidiEvents];
+#endif
+
+#if DISTRHO_PLUGIN_HAS_UI
+    UIVst* fVstUi;
+    ERect  fVstRect;
+#endif
+
+#if DISTRHO_PLUGIN_WANT_STATE
+    char*     fStateChunk;
+    StringMap fStateMap;
+
+    void setSharedState(const char* const newKey, const char* const newValue) override
+    {
+        fPlugin.setState(newKey, newValue);
+
+        // check if key already exists
+        for (auto it = fStateMap.begin(), end = fStateMap.end(); it != end; ++it)
+        {
+            const d_string& key = it->first;
+
+            if (key == newKey)
+            {
+                it->second = newValue;
+                return;
+            }
+        }
+
+        // add a new one then
+        d_string d_key(newKey);
+        fStateMap[d_key] = newValue;
+    }
+#endif
+};
+
+// -----------------------------------------------------------------------
+
+#ifdef VESTIGE_HEADER
+# define handlePtr   ((PluginVst*)effect->ptr2)
+# define validEffect effect != nullptr && effect->ptr2 != nullptr
+#else
+# define handlePtr   ((PluginVst*)effect->resvd2)
+# define validEffect effect != nullptr && effect->resvd2 != 0
+#endif
+
+static intptr_t vst_dispatcherCallback(AEffect* effect, int32_t opcode, int32_t index, intptr_t value, void* ptr, float opt)
+{
+    // first internal init
+    bool doInternalInit = (opcode == -1729 && index == 0xdead && value == 0xf00d);
+
+    if (doInternalInit)
+    {
+        // set valid but dummy values
+        d_lastBufferSize = 512;
+        d_lastSampleRate = 44100.0;
+    }
+
+    // Create dummy plugin to get data from
+    static PluginExporter plugin;
+
+    if (doInternalInit)
+    {
+        // unset
+        d_lastBufferSize = 0;
+        d_lastSampleRate = 0.0;
+
+        *(PluginExporter**)ptr = &plugin;
+        return 0;
+    }
+
+    // handle base opcodes
+    switch (opcode)
+    {
+    case effOpen:
+#ifdef VESTIGE_HEADER
+        if (effect != nullptr && effect->ptr3 != nullptr)
+        {
+            audioMasterCallback audioMaster = (audioMasterCallback)effect->ptr3;
+#else
+        if (effect != nullptr && effect->object != nullptr)
+        {
+            audioMasterCallback audioMaster = (audioMasterCallback)effect->object;
+#endif
+            d_lastBufferSize = audioMaster(effect, audioMasterGetBlockSize, 0, 0, nullptr, 0.0f);
+            d_lastSampleRate = audioMaster(effect, audioMasterGetSampleRate, 0, 0, nullptr, 0.0f);
+            PluginVst* const plugin(new PluginVst(audioMaster, effect));
+#ifdef VESTIGE_HEADER
+            effect->ptr2 = plugin;
+#else
+            effect->resvd2 = (intptr_t)plugin;
+#endif
+            return 1;
+        }
+        return 0;
+
+    case effClose:
+        if (validEffect)
+        {
+#ifdef VESTIGE_HEADER
+            delete (PluginVst*)effect->ptr2;
+            effect->ptr2 = nullptr;
+            effect->ptr3 = nullptr;
+#else
+            delete (PluginVst*)effect->resvd2;
+            effect->resvd2 = 0;
+            effect->object = nullptr;
+#endif
+            delete effect;
+            return 1;
+        }
+        return 0;
+
+    case effGetParamLabel:
+        if (ptr != nullptr && index < static_cast<int32_t>(plugin.getParameterCount()))
+        {
+            DISTRHO::strncpy((char*)ptr, plugin.getParameterUnit(index), 8);
+            return 1;
+        }
+        return 0;
+
+    case effGetParamName:
+        if (ptr != nullptr && index < static_cast<int32_t>(plugin.getParameterCount()))
+        {
+            DISTRHO::strncpy((char*)ptr, plugin.getParameterName(index), 8);
+            return 1;
+        }
+        return 0;
+
+#if DISTRHO_PLUGIN_WANT_PROGRAMS
+    case effGetProgramNameIndexed:
+        if (ptr != nullptr && index < static_cast<int32_t>(plugin.getProgramCount()))
+        {
+            DISTRHO::strncpy((char*)ptr, plugin.getProgramName(index), 24);
+            return 1;
+        }
+        return 0;
+#endif
+
+    case effGetPlugCategory:
+#if DISTRHO_PLUGIN_IS_SYNTH
+        return kPlugCategSynth;
+#else
+        return kPlugCategEffect;
+#endif
+
+    case effGetEffectName:
+        if (ptr != nullptr)
+        {
+            DISTRHO::strncpy((char*)ptr, plugin.getName(), 64);
+            return 1;
+        }
+        return 0;
+
+    case effGetVendorString:
+        if (ptr != nullptr)
+        {
+            DISTRHO::strncpy((char*)ptr, plugin.getMaker(), 64);
+            return 1;
+        }
+        return 0;
+
+    case effGetProductString:
+        if (ptr != nullptr)
+        {
+            DISTRHO::strncpy((char*)ptr, plugin.getLabel(), 32);
+            return 1;
+        }
+        return 0;
+
+    case effGetVendorVersion:
+        return plugin.getVersion();
+
+    case effGetVstVersion:
+        return kVstVersion;
+    };
+
+    // handle advanced opcodes
+    if (validEffect)
+        return handlePtr->vst_dispatcher(opcode, index, value, ptr, opt);
+
+    return 0;
+}
+
+static float vst_getParameterCallback(AEffect* effect, int32_t index)
+{
+    if (validEffect)
+        return handlePtr->vst_getParameter(index);
+    return 0.0f;
+}
+
+static void vst_setParameterCallback(AEffect* effect, int32_t index, float value)
+{
+    if (validEffect)
+        handlePtr->vst_setParameter(index, value);
+}
+
+static void vst_processCallback(AEffect* effect, float** inputs, float** outputs, int32_t sampleFrames)
+{
+    if (validEffect)
+        handlePtr->vst_processReplacing(inputs, outputs, sampleFrames);
+}
+
+static void vst_processReplacingCallback(AEffect* effect, float** inputs, float** outputs, int32_t sampleFrames)
+{
+    if (validEffect)
+        handlePtr->vst_processReplacing(inputs, outputs, sampleFrames);
+}
+
+#undef handlePtr
+
+// -----------------------------------------------------------------------
+
+END_NAMESPACE_DISTRHO
+
+DISTRHO_PLUGIN_EXPORT
+const AEffect* VSTPluginMain(audioMasterCallback audioMaster)
+{
+    USE_NAMESPACE_DISTRHO
+
+    // old version
+    if (audioMaster(nullptr, audioMasterVersion, 0, 0, nullptr, 0.0f) == 0)
+        return nullptr;
+
+    // first internal init
+    PluginExporter* plugin = nullptr;
+    vst_dispatcherCallback(nullptr, -1729, 0xdead, 0xf00d, &plugin, 0.0f);
+
+    AEffect* const effect(new AEffect);
+    std::memset(effect, 0, sizeof(AEffect));
+
+    // vst fields
+    effect->magic    = kEffectMagic;
+    effect->uniqueID = plugin->getUniqueId();
+#ifdef VESTIGE_HEADER
+    *(int32_t*)&effect->unknown1 = plugin->getVersion();
+#else
+    effect->version  = plugin->getVersion();
+#endif
+
+    // plugin fields
+    effect->numParams   = plugin->getParameterCount();
+#if DISTRHO_PLUGIN_WANT_PROGRAMS
+    effect->numPrograms = plugin->getProgramCount();
+#endif
+    effect->numInputs   = DISTRHO_PLUGIN_NUM_INPUTS;
+    effect->numOutputs  = DISTRHO_PLUGIN_NUM_OUTPUTS;
+
+    // plugin flags
+    effect->flags |= effFlagsCanReplacing;
+#if DISTRHO_PLUGIN_IS_SYNTH
+    effect->flags |= effFlagsIsSynth;
+#endif
+#if DISTRHO_PLUGIN_HAS_UI
+    effect->flags |= effFlagsHasEditor;
+#endif
+#if DISTRHO_PLUGIN_WANT_STATE
+    effect->flags |= effFlagsProgramChunks;
+#endif
+
+    // static calls
+    effect->dispatcher   = vst_dispatcherCallback;
+    effect->process      = vst_processCallback;
+    effect->getParameter = vst_getParameterCallback;
+    effect->setParameter = vst_setParameterCallback;
+    effect->processReplacing = vst_processReplacingCallback;
+
+    // pointers
+#ifdef VESTIGE_HEADER
+    effect->ptr3   = (void*)audioMaster;
+#else
+    effect->object = (void*)audioMaster;
+#endif
+
+    return effect;
+}

distrho/src/DistrhoUI.cpp

@@ -0,0 +1,89 @@
+/*
+ * DISTRHO Plugin Toolkit (DPT)
+ * Copyright (C) 2012-2013 Filipe Coelho <falktx@falktx.com>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any purpose with
+ * or without fee is hereby granted, provided that the above copyright notice and this
+ * permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD
+ * TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN
+ * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+ * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
+ * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include "DistrhoUIInternal.hpp"
+
+START_NAMESPACE_DGL
+extern Window* dgl_lastUiParent;
+END_NAMESPACE_DGL
+
+START_NAMESPACE_DISTRHO
+
+// -----------------------------------------------------------------------
+// Static data
+
+double d_lastUiSampleRate = 0.0;
+
+// -----------------------------------------------------------------------
+// UI
+
+UI::UI()
+    : DGL::Widget(*DGL::dgl_lastUiParent),
+      pData(new PrivateData())
+{
+    assert(DGL::dgl_lastUiParent != nullptr);
+
+    DGL::dgl_lastUiParent = nullptr;
+}
+
+UI::~UI()
+{
+    delete pData;
+}
+
+// -----------------------------------------------------------------------
+// Host DSP State
+
+double UI::d_getSampleRate() const noexcept
+{
+    return pData->sampleRate;
+}
+
+void UI::d_editParameter(uint32_t index, bool started)
+{
+    pData->editParamCallback(index + pData->parameterOffset, started);
+}
+
+void UI::d_setParameterValue(uint32_t index, float value)
+{
+    pData->setParamCallback(index + pData->parameterOffset, value);
+}
+
+#if DISTRHO_PLUGIN_WANT_STATE
+void UI::d_setState(const char* key, const char* value)
+{
+    pData->setStateCallback(key, value);
+}
+#endif
+
+#if DISTRHO_PLUGIN_IS_SYNTH
+void UI::d_sendNote(uint8_t channel, uint8_t note, uint8_t velocity)
+{
+    pData->sendNoteCallback(channel, note, velocity);
+}
+#endif
+
+// -----------------------------------------------------------------------
+// Host UI State
+
+void UI::d_uiResize(unsigned int width, unsigned int height)
+{
+    pData->uiResizeCallback(width, height);
+}
+
+// -----------------------------------------------------------------------
+
+END_NAMESPACE_DISTRHO

distrho/src/DistrhoUIDSSI.cpp

@@ -0,0 +1,489 @@
+/*
+ * DISTRHO Plugin Toolkit (DPT)
+ * Copyright (C) 2012-2013 Filipe Coelho <falktx@falktx.com>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any purpose with
+ * or without fee is hereby granted, provided that the above copyright notice and this
+ * permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD
+ * TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN
+ * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+ * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
+ * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include "DistrhoUIInternal.hpp"
+
+#include <lo/lo.h>
+
+START_NAMESPACE_DISTRHO
+
+// -----------------------------------------------------------------------
+
+struct OscData {
+    lo_address  addr;
+    const char* path;
+    lo_server   server;
+
+    OscData()
+        : addr(nullptr),
+          path(nullptr),
+          server(nullptr) {}
+
+    void idle() const
+    {
+        if (server == nullptr)
+            return;
+
+        while (lo_server_recv_noblock(server, 0) != 0) {}
+    }
+
+    void send_configure(const char* const key, const char* const value) const
+    {
+        char targetPath[std::strlen(path)+11];
+        std::strcpy(targetPath, path);
+        std::strcat(targetPath, "/configure");
+        lo_send(addr, targetPath, "ss", key, value);
+    }
+
+    void send_control(const int32_t index, const float value) const
+    {
+        char targetPath[std::strlen(path)+9];
+        std::strcpy(targetPath, path);
+        std::strcat(targetPath, "/control");
+        lo_send(addr, targetPath, "if", index, value);
+    }
+
+    void send_midi(unsigned char data[4]) const
+    {
+        char targetPath[std::strlen(path)+6];
+        std::strcpy(targetPath, path);
+        std::strcat(targetPath, "/midi");
+        lo_send(addr, targetPath, "m", data);
+    }
+
+    void send_update(const char* const url) const
+    {
+        char targetPath[std::strlen(path)+8];
+        std::strcpy(targetPath, path);
+        std::strcat(targetPath, "/update");
+        lo_send(addr, targetPath, "s", url);
+    }
+
+    void send_exiting() const
+    {
+        char targetPath[std::strlen(path)+9];
+        std::strcpy(targetPath, path);
+        std::strcat(targetPath, "/exiting");
+        lo_send(addr, targetPath, "");
+    }
+};
+
+// -----------------------------------------------------------------------
+
+class UIDssi
+{
+public:
+    UIDssi(const OscData& oscData, const char* const uiTitle)
+        : fUI(this, 0, nullptr, setParameterCallback, setStateCallback, sendNoteCallback, uiResizeCallback),
+          fHostClosed(false),
+          fOscData(oscData)
+    {
+        fUI.setTitle(uiTitle);
+    }
+
+    ~UIDssi()
+    {
+        if (fOscData.server != nullptr && ! fHostClosed)
+            fOscData.send_exiting();
+    }
+
+    void exec()
+    {
+        for (;;)
+        {
+            fOscData.idle();
+
+            if (! fUI.idle())
+                break;
+
+            d_msleep(50);
+        }
+    }
+
+    // -------------------------------------------------------------------
+
+#if DISTRHO_PLUGIN_WANT_STATE
+    void dssiui_configure(const char* key, const char* value)
+    {
+        fUI.stateChanged(key, value);
+    }
+#endif
+
+    void dssiui_control(unsigned long index, float value)
+    {
+        fUI.parameterChanged(index, value);
+    }
+
+#if DISTRHO_PLUGIN_WANT_PROGRAMS
+    void dssiui_program(unsigned long bank, unsigned long program)
+    {
+        fUI.programChanged(bank * 128 + program);
+    }
+#endif
+
+    void dssiui_show()
+    {
+        fUI.setVisible(true);
+    }
+
+    void dssiui_hide()
+    {
+        fUI.setVisible(false);
+    }
+
+    void dssiui_quit()
+    {
+        fHostClosed = true;
+        fUI.quit();
+    }
+
+    // -------------------------------------------------------------------
+
+protected:
+    void setParameterValue(const uint32_t rindex, const float value)
+    {
+        if (fOscData.server == nullptr)
+            return;
+
+        fOscData.send_control(rindex, value);
+    }
+
+    void setState(const char* const key, const char* const value)
+    {
+        if (fOscData.server == nullptr)
+            return;
+
+        fOscData.send_configure(key, value);
+    }
+
+    void sendNote(const uint8_t channel, const uint8_t note, const uint8_t velocity)
+    {
+        if (fOscData.server == nullptr)
+            return;
+        if (channel > 0xF)
+            return;
+
+        uint8_t mdata[4] = { 0, channel, note, velocity };
+        mdata[1] += (velocity != 0) ? 0x90 : 0x80;
+
+        fOscData.send_midi(mdata);
+    }
+
+    void uiResize(const unsigned int width, const unsigned int height)
+    {
+        fUI.setSize(width, height);
+    }
+
+private:
+    UIExporter fUI;
+    bool fHostClosed;
+
+    const OscData& fOscData;
+
+    // -------------------------------------------------------------------
+    // Callbacks
+
+    #define uiPtr ((UIDssi*)ptr)
+
+    static void setParameterCallback(void* ptr, uint32_t rindex, float value)
+    {
+        uiPtr->setParameterValue(rindex, value);
+    }
+
+    static void setStateCallback(void* ptr, const char* key, const char* value)
+    {
+        uiPtr->setState(key, value);
+    }
+
+    static void sendNoteCallback(void* ptr, uint8_t channel, uint8_t note, uint8_t velocity)
+    {
+        uiPtr->sendNote(channel, note, velocity);
+    }
+
+    static void uiResizeCallback(void* ptr, unsigned int width, unsigned int height)
+    {
+        uiPtr->uiResize(width, height);
+    }
+
+    #undef uiPtr
+};
+
+// -----------------------------------------------------------------------
+
+static OscData     gOscData;
+static const char* gUiTitle = nullptr;
+static UIDssi*     globalUI = nullptr;
+
+static void initUiIfNeeded()
+{
+    if (globalUI != nullptr)
+        return;
+
+    if (d_lastUiSampleRate == 0.0)
+        d_lastUiSampleRate = 44100.0;
+
+    globalUI = new UIDssi(gOscData, gUiTitle);
+}
+
+// -----------------------------------------------------------------------
+
+int osc_debug_handler(const char* path, const char*, lo_arg**, int, lo_message, void*)
+{
+    d_debug("osc_debug_handler(\"%s\")", path);
+    return 0;
+}
+
+void osc_error_handler(int num, const char* msg, const char* path)
+{
+    d_stderr("osc_error_handler(%i, \"%s\", \"%s\")", num, msg, path);
+}
+
+#if DISTRHO_PLUGIN_WANT_STATE
+int osc_configure_handler(const char*, const char*, lo_arg** argv, int, lo_message, void*)
+{
+    const char* const key   = &argv[0]->s;
+    const char* const value = &argv[1]->s;
+    d_debug("osc_configure_handler(\"%s\", \"%s\")", key, value);
+
+    initUiIfNeeded();
+
+    globalUI->dssiui_configure(key, value);
+
+    return 0;
+}
+#endif
+
+int osc_control_handler(const char*, const char*, lo_arg** argv, int, lo_message, void*)
+{
+    const int32_t rindex = argv[0]->i;
+    const float   value  = argv[1]->f;
+    d_debug("osc_control_handler(%i, %f)", rindex, value);
+
+    int32_t index = rindex - DISTRHO_PLUGIN_NUM_INPUTS - DISTRHO_PLUGIN_NUM_OUTPUTS;
+
+    // latency
+#if DISTRHO_PLUGIN_WANT_LATENCY
+    index -= 1;
+#endif
+
+    if (index < 0)
+        return 0;
+
+    initUiIfNeeded();
+
+    globalUI->dssiui_control(index, value);
+
+    return 0;
+}
+
+#if DISTRHO_PLUGIN_WANT_PROGRAMS
+int osc_program_handler(const char*, const char*, lo_arg** argv, int, lo_message, void*)
+{
+    const int32_t bank    = argv[0]->i;
+    const int32_t program = argv[1]->f;
+    d_debug("osc_program_handler(%i, %i)", bank, program);
+
+    initUiIfNeeded();
+
+    globalUI->dssiui_program(bank, program);
+
+    return 0;
+}
+#endif
+
+int osc_sample_rate_handler(const char*, const char*, lo_arg** argv, int, lo_message, void*)
+{
+    const int32_t sampleRate = argv[0]->i;
+    d_debug("osc_sample_rate_handler(%i)", sampleRate);
+
+    d_lastUiSampleRate = sampleRate;
+
+    return 0;
+}
+
+int osc_show_handler(const char*, const char*, lo_arg**, int, lo_message, void*)
+{
+    d_debug("osc_show_handler()");
+
+    initUiIfNeeded();
+
+    globalUI->dssiui_show();
+
+    return 0;
+}
+
+int osc_hide_handler(const char*, const char*, lo_arg**, int, lo_message, void*)
+{
+    d_debug("osc_hide_handler()");
+
+    if (globalUI != nullptr)
+        globalUI->dssiui_hide();
+
+    return 0;
+}
+
+int osc_quit_handler(const char*, const char*, lo_arg**, int, lo_message, void*)
+{
+    d_debug("osc_quit_handler()");
+
+    if (globalUI != nullptr)
+        globalUI->dssiui_quit();
+
+    return 0;
+}
+
+END_NAMESPACE_DISTRHO
+
+// -----------------------------------------------------------------------
+
+int main(int argc, char* argv[])
+{
+    USE_NAMESPACE_DISTRHO
+
+    // dummy test mode
+    if (argc == 1)
+    {
+        gUiTitle = "DSSI UI Test";
+
+        initUiIfNeeded();
+        globalUI->dssiui_show();
+        globalUI->exec();
+
+        return 0;
+    }
+
+    if (argc != 5)
+    {
+        fprintf(stderr, "Usage: %s <osc-url> <plugin-dll> <plugin-label> <instance-name>\n", argv[0]);
+        return 1;
+    }
+
+    const char* oscUrl  = argv[1];
+    const char* uiTitle = argv[4];
+
+    char* const oscHost = lo_url_get_hostname(oscUrl);
+    char* const oscPort = lo_url_get_port(oscUrl);
+    char* const oscPath = lo_url_get_path(oscUrl);
+    size_t  oscPathSize = strlen(oscPath);
+    lo_address  oscAddr = lo_address_new(oscHost, oscPort);
+    lo_server oscServer = lo_server_new_with_proto(nullptr, LO_UDP, osc_error_handler);
+
+    char* const oscServerPath = lo_server_get_url(oscServer);
+
+    char pluginPath[strlen(oscServerPath)+oscPathSize];
+    strcpy(pluginPath, oscServerPath);
+    strcat(pluginPath, oscPath+1);
+
+#if DISTRHO_PLUGIN_WANT_STATE
+    char oscPathConfigure[oscPathSize+11];
+    strcpy(oscPathConfigure, oscPath);
+    strcat(oscPathConfigure, "/configure");
+    lo_server_add_method(oscServer, oscPathConfigure, "ss", osc_configure_handler, nullptr);
+#endif
+
+    char oscPathControl[oscPathSize+9];
+    strcpy(oscPathControl, oscPath);
+    strcat(oscPathControl, "/control");
+    lo_server_add_method(oscServer, oscPathControl, "if", osc_control_handler, nullptr);
+
+    d_stdout("oscServerPath:  \"%s\"", oscServerPath);
+    d_stdout("pluginPath:     \"%s\"", pluginPath);
+    d_stdout("oscPathControl: \"%s\"", oscPathControl);
+
+#if DISTRHO_PLUGIN_WANT_PROGRAMS
+    char oscPathProgram[oscPathSize+9];
+    strcpy(oscPathProgram, oscPath);
+    strcat(oscPathProgram, "/program");
+    lo_server_add_method(oscServer, oscPathProgram, "ii", osc_program_handler, nullptr);
+#endif
+
+    char oscPathSampleRate[oscPathSize+13];
+    strcpy(oscPathSampleRate, oscPath);
+    strcat(oscPathSampleRate, "/sample-rate");
+    lo_server_add_method(oscServer, oscPathSampleRate, "i", osc_sample_rate_handler, nullptr);
+
+    char oscPathShow[oscPathSize+6];
+    strcpy(oscPathShow, oscPath);
+    strcat(oscPathShow, "/show");
+    lo_server_add_method(oscServer, oscPathShow, "", osc_show_handler, nullptr);
+
+    char oscPathHide[oscPathSize+6];
+    strcpy(oscPathHide, oscPath);
+    strcat(oscPathHide, "/hide");
+    lo_server_add_method(oscServer, oscPathHide, "", osc_hide_handler, nullptr);
+
+    char oscPathQuit[oscPathSize+6];
+    strcpy(oscPathQuit, oscPath);
+    strcat(oscPathQuit, "/quit");
+    lo_server_add_method(oscServer, oscPathQuit, "", osc_quit_handler, nullptr);
+
+    lo_server_add_method(oscServer, nullptr, nullptr, osc_debug_handler, nullptr);
+
+    gUiTitle = uiTitle;
+
+    gOscData.addr   = oscAddr;
+    gOscData.path   = oscPath;
+    gOscData.server = oscServer;
+    gOscData.send_update(pluginPath);
+
+    // wait for init
+    for (int i=0; i < 100; ++i)
+    {
+        lo_server_recv(oscServer);
+
+        if (d_lastUiSampleRate != 0.0 || globalUI != nullptr)
+            break;
+
+        d_msleep(50);
+    }
+
+    int ret = 1;
+
+    if (d_lastUiSampleRate != 0.0 || globalUI != nullptr)
+    {
+        initUiIfNeeded();
+
+        globalUI->exec();
+
+        delete globalUI;
+        globalUI = nullptr;
+
+        ret = 0;
+    }
+
+#if DISTRHO_PLUGIN_WANT_STATE
+    lo_server_del_method(oscServer, oscPathConfigure, "ss");
+#endif
+    lo_server_del_method(oscServer, oscPathControl, "if");
+#if DISTRHO_PLUGIN_WANT_PROGRAMS
+    lo_server_del_method(oscServer, oscPathProgram, "ii");
+#endif
+    lo_server_del_method(oscServer, oscPathSampleRate, "i");
+    lo_server_del_method(oscServer, oscPathShow, "");
+    lo_server_del_method(oscServer, oscPathHide, "");
+    lo_server_del_method(oscServer, oscPathQuit, "");
+    lo_server_del_method(oscServer, nullptr, nullptr);
+
+    std::free(oscServerPath);
+    std::free(oscHost);
+    std::free(oscPort);
+    std::free(oscPath);
+
+    lo_address_free(oscAddr);
+    lo_server_free(oscServer);
+
+    return ret;
+}

distrho/src/DistrhoUIInternal.hpp

@@ -0,0 +1,249 @@
+/*
+ * DISTRHO Plugin Toolkit (DPT)
+ * Copyright (C) 2012-2013 Filipe Coelho <falktx@falktx.com>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any purpose with
+ * or without fee is hereby granted, provided that the above copyright notice and this
+ * permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD
+ * TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN
+ * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+ * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
+ * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef DISTRHO_UI_INTERNAL_HPP_INCLUDED
+#define DISTRHO_UI_INTERNAL_HPP_INCLUDED
+
+#include "../DistrhoUI.hpp"
+
+#include "../../dgl/App.hpp"
+#include "../../dgl/Window.hpp"
+
+START_NAMESPACE_DISTRHO
+
+// -----------------------------------------------------------------------
+// Static data, see DistrhoUI.cpp
+
+extern double d_lastUiSampleRate;
+
+// -----------------------------------------------------------------------
+// UI callbacks
+
+typedef void (*editParamFunc) (void* ptr, uint32_t rindex, bool started);
+typedef void (*setParamFunc)  (void* ptr, uint32_t rindex, float value);
+typedef void (*setStateFunc)  (void* ptr, const char* key, const char* value);
+typedef void (*sendNoteFunc)  (void* ptr, uint8_t channel, uint8_t note, uint8_t velo);
+typedef void (*uiResizeFunc)  (void* ptr, unsigned int width, unsigned int height);
+
+// -----------------------------------------------------------------------
+// UI private data
+
+struct UI::PrivateData {
+    // DSP
+    double   sampleRate;
+    uint32_t parameterOffset;
+
+    // Callbacks
+    editParamFunc editParamCallbackFunc;
+    setParamFunc  setParamCallbackFunc;
+    setStateFunc  setStateCallbackFunc;
+    sendNoteFunc  sendNoteCallbackFunc;
+    uiResizeFunc  uiResizeCallbackFunc;
+    void*         ptr;
+
+    PrivateData() noexcept
+        : sampleRate(d_lastUiSampleRate),
+          parameterOffset(0),
+          editParamCallbackFunc(nullptr),
+          setParamCallbackFunc(nullptr),
+          setStateCallbackFunc(nullptr),
+          sendNoteCallbackFunc(nullptr),
+          uiResizeCallbackFunc(nullptr),
+          ptr(nullptr)
+    {
+        assert(sampleRate != 0.0);
+
+#if defined(DISTRHO_PLUGIN_TARGET_DSSI) || defined(DISTRHO_PLUGIN_TARGET_LV2)
+        parameterOffset += DISTRHO_PLUGIN_NUM_INPUTS + DISTRHO_PLUGIN_NUM_OUTPUTS;
+# if DISTRHO_PLUGIN_WANT_LATENCY
+        parameterOffset += 1;
+# endif
+#endif
+#ifdef DISTRHO_PLUGIN_TARGET_LV2
+# if (DISTRHO_PLUGIN_IS_SYNTH || DISTRHO_PLUGIN_WANT_TIMEPOS || DISTRHO_PLUGIN_WANT_STATE)
+        parameterOffset += 1;
+#  if DISTRHO_PLUGIN_WANT_STATE
+        parameterOffset += 1;
+#  endif
+# endif
+#endif
+    }
+
+    void editParamCallback(const uint32_t rindex, const bool started)
+    {
+        if (editParamCallbackFunc != nullptr)
+            editParamCallbackFunc(ptr, rindex, started);
+    }
+
+    void setParamCallback(const uint32_t rindex, const float value)
+    {
+        if (setParamCallbackFunc != nullptr)
+            setParamCallbackFunc(ptr, rindex, value);
+    }
+
+    void setStateCallback(const char* const key, const char* const value)
+    {
+        if (setStateCallbackFunc != nullptr)
+            setStateCallbackFunc(ptr, key, value);
+    }
+
+    void sendNoteCallback(const uint8_t channel, const uint8_t note, const uint8_t velocity)
+    {
+        if (sendNoteCallbackFunc != nullptr)
+            sendNoteCallbackFunc(ptr, channel, note, velocity);
+    }
+
+    void uiResizeCallback(const unsigned int width, const unsigned int height)
+    {
+        if (uiResizeCallbackFunc != nullptr)
+            uiResizeCallbackFunc(ptr, width, height);
+    }
+};
+
+// -----------------------------------------------------------------------
+// UI exporter class
+
+class UIExporter
+{
+public:
+    UIExporter(void* const ptr, const intptr_t winId,
+               const editParamFunc editParamCall, const setParamFunc setParamCall, const setStateFunc setStateCall, const sendNoteFunc sendNoteCall, const uiResizeFunc uiResizeCall)
+        : glApp(),
+          glWindow(glApp, winId),
+          fUi(createUI()),
+          fData((fUi != nullptr) ? fUi->pData : nullptr)
+    {
+        assert(fUi != nullptr);
+
+        if (fUi == nullptr)
+            return;
+
+        fData->ptr = ptr;
+        fData->editParamCallbackFunc = editParamCall;
+        fData->setParamCallbackFunc  = setParamCall;
+        fData->setStateCallbackFunc  = setStateCall;
+        fData->sendNoteCallbackFunc  = sendNoteCall;
+        fData->uiResizeCallbackFunc  = uiResizeCall;
+
+        glWindow.setSize(fUi->d_getWidth(), fUi->d_getHeight());
+        glWindow.setResizable(false);
+    }
+
+    ~UIExporter()
+    {
+        delete fUi;
+    }
+
+    // -------------------------------------------------------------------
+
+    const char* getName() const noexcept
+    {
+        return (fUi != nullptr) ? fUi->d_getName() : "";
+    }
+
+    unsigned int getWidth() const noexcept
+    {
+        return (fUi != nullptr) ? fUi->d_getWidth() : 0;
+    }
+
+    unsigned int getHeight() const noexcept
+    {
+        return (fUi != nullptr) ? fUi->d_getHeight() : 0;
+    }
+
+    // -------------------------------------------------------------------
+
+    uint32_t getParameterOffset() const noexcept
+    {
+        return (fData != nullptr) ? fData->parameterOffset : 0;
+    }
+
+    // -------------------------------------------------------------------
+
+    void parameterChanged(const uint32_t index, const float value)
+    {
+        if (fUi != nullptr)
+            fUi->d_parameterChanged(index, value);
+    }
+
+#if DISTRHO_PLUGIN_WANT_PROGRAMS
+    void programChanged(const uint32_t index)
+    {
+        if (fUi != nullptr)
+            fUi->d_programChanged(index);
+    }
+#endif
+
+#if DISTRHO_PLUGIN_WANT_STATE
+    void stateChanged(const char* const key, const char* const value)
+    {
+        if (fUi != nullptr)
+            fUi->d_stateChanged(key, value);
+    }
+#endif
+
+    // -------------------------------------------------------------------
+
+    bool idle()
+    {
+        if (fUi != nullptr)
+            fUi->d_uiIdle();
+
+        glApp.idle();
+
+        return ! glApp.isQuiting();
+    }
+
+    void quit()
+    {
+        glWindow.close();
+        glApp.quit();
+    }
+
+    void setSize(const unsigned int width, const unsigned int height)
+    {
+        glWindow.setSize(width, height);
+    }
+
+    void setTitle(const char* const uiTitle)
+    {
+        glWindow.setTitle(uiTitle);
+    }
+
+    void setVisible(const bool yesNo)
+    {
+        glWindow.setVisible(yesNo);
+    }
+
+private:
+    // -------------------------------------------------------------------
+    // DGL Application and Window for this plugin
+
+    DGL::App    glApp;
+    DGL::Window glWindow;
+
+    // -------------------------------------------------------------------
+    // private members accessed by DistrhoPlugin class
+
+    UI* const fUi;
+    UI::PrivateData* const fData;
+};
+
+// -----------------------------------------------------------------------
+
+END_NAMESPACE_DISTRHO
+
+#endif // DISTRHO_UI_INTERNAL_HPP_INCLUDED

distrho/src/DistrhoUILV2.cpp

@@ -0,0 +1,333 @@
+/*
+ * DISTRHO Plugin Toolkit (DPT)
+ * Copyright (C) 2012-2013 Filipe Coelho <falktx@falktx.com>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any purpose with
+ * or without fee is hereby granted, provided that the above copyright notice and this
+ * permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD
+ * TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN
+ * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+ * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
+ * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include "DistrhoUIInternal.hpp"
+
+#include "lv2/atom.h"
+#include "lv2/atom-util.h"
+#include "lv2/options.h"
+#include "lv2/ui.h"
+#include "lv2/urid.h"
+#include "lv2/lv2_programs.h"
+
+#include <string>
+
+START_NAMESPACE_DISTRHO
+
+// -----------------------------------------------------------------------
+
+class UiLv2
+{
+public:
+    UiLv2(const intptr_t winId, const LV2_URID_Map* const uridMap, const LV2UI_Resize* const uiResz, const LV2UI_Touch* uiTouch, const LV2UI_Controller controller, const LV2UI_Write_Function writeFunc)
+        : fUI(this, winId, editParameterCallback, setParameterCallback, setStateCallback, sendNoteCallback, uiResizeCallback),
+          fUridMap(uridMap),
+          fUiResize(uiResz),
+          fUiTouch(uiTouch),
+          fController(controller),
+          fWriteFunction(writeFunc)
+    {
+        fUiResize->ui_resize(fUiResize->handle, fUI.getWidth(), fUI.getHeight());
+    }
+
+    // -------------------------------------------------------------------
+
+    void lv2ui_port_event(const uint32_t rindex, const uint32_t bufferSize, const uint32_t format, const void* const buffer)
+    {
+        if (format == 0)
+        {
+            const uint32_t parameterOffset(fUI.getParameterOffset());
+
+            if (rindex < parameterOffset)
+                return;
+            if (bufferSize != sizeof(float))
+                return;
+
+            const float value(*(const float*)buffer);
+            fUI.parameterChanged(rindex-parameterOffset, value);
+        }
+        else
+        {
+            //fUI.stateChanged(key, value);
+        }
+    }
+
+    // -------------------------------------------------------------------
+
+    int lv2ui_idle()
+    {
+        fUI.idle();
+        return 0;
+    }
+
+    // -------------------------------------------------------------------
+
+#if DISTRHO_PLUGIN_WANT_PROGRAMS
+    void lv2ui_select_program(const uint32_t bank, const uint32_t program)
+    {
+        const uint32_t realProgram(bank * 128 + program);
+
+        fUI.programChanged(realProgram);
+    }
+#endif
+
+    // -------------------------------------------------------------------
+
+protected:
+    void editParameterValue(const uint32_t rindex, const bool started)
+    {
+        if (fUiTouch != nullptr && fUiTouch->touch != nullptr)
+            fUiTouch->touch(fUiTouch->handle, rindex, started);
+    }
+
+    void setParameterValue(const uint32_t rindex, const float value)
+    {
+        if (fWriteFunction != nullptr)
+            fWriteFunction(fController, rindex, sizeof(float), 0, &value);
+    }
+
+    void setState(const char* const key, const char* const value)
+    {
+        if (fWriteFunction == nullptr)
+            return;
+
+        const uint32_t eventInPortIndex(DISTRHO_PLUGIN_NUM_INPUTS + DISTRHO_PLUGIN_NUM_OUTPUTS);
+
+        // join key and value
+        std::string tmpStr;
+        tmpStr += std::string(key);
+        tmpStr += std::string("\0", 1);
+        tmpStr += std::string(value);
+
+        // get msg size
+        const size_t msgSize(tmpStr.size()+1);
+
+        // reserve atom space
+        const size_t atomSize(lv2_atom_pad_size(sizeof(LV2_Atom) + msgSize));
+        char         atomBuf[atomSize];
+        std::memset(atomBuf, 0, atomSize);
+
+        // set atom info
+        LV2_Atom* const atom((LV2_Atom*)atomBuf);
+        atom->size = msgSize;
+        atom->type = fUridMap->map(fUridMap->handle, "urn:distrho:keyValueState");
+
+        // set atom data
+        std::memcpy(atomBuf + sizeof(LV2_Atom), tmpStr.data(), msgSize-1);
+
+        // send to DSP side
+        fWriteFunction(fController, eventInPortIndex, atomSize, fUridMap->map(fUridMap->handle, LV2_ATOM__eventTransfer), atom);
+    }
+
+    void sendNote(const uint8_t /*channel*/, const uint8_t /*note*/, const uint8_t /*velocity*/)
+    {
+    }
+
+    void uiResize(const unsigned int width, const unsigned int height)
+    {
+        fUI.setSize(width, height);
+        fUiResize->ui_resize(fUiResize->handle, width, height);
+    }
+
+private:
+    UIExporter fUI;
+
+    // LV2 features
+    const LV2_URID_Map* const fUridMap;
+    const LV2UI_Resize* const fUiResize;
+    const LV2UI_Touch*  const fUiTouch;
+
+    // LV2 UI stuff
+    const LV2UI_Controller     fController;
+    const LV2UI_Write_Function fWriteFunction;
+
+    // -------------------------------------------------------------------
+    // Callbacks
+
+    #define uiPtr ((UiLv2*)ptr)
+
+    static void editParameterCallback(void* ptr, uint32_t rindex, bool started)
+    {
+        uiPtr->editParameterValue(rindex, started);
+    }
+
+    static void setParameterCallback(void* ptr, uint32_t rindex, float value)
+    {
+        uiPtr->setParameterValue(rindex, value);
+    }
+
+    static void setStateCallback(void* ptr, const char* key, const char* value)
+    {
+        uiPtr->setState(key, value);
+    }
+
+    static void sendNoteCallback(void* ptr, uint8_t channel, uint8_t note, uint8_t velocity)
+    {
+        uiPtr->sendNote(channel, note, velocity);
+    }
+
+    static void uiResizeCallback(void* ptr, unsigned int width, unsigned int height)
+    {
+        uiPtr->uiResize(width, height);
+    }
+
+    #undef uiPtr
+};
+
+// -----------------------------------------------------------------------
+
+static LV2UI_Handle lv2ui_instantiate(const LV2UI_Descriptor*, const char* uri, const char*, LV2UI_Write_Function writeFunction, LV2UI_Controller controller, LV2UI_Widget* widget, const LV2_Feature* const* features)
+{
+    if (uri == nullptr || std::strcmp(uri, DISTRHO_PLUGIN_URI) != 0)
+    {
+        d_stderr("Invalid plugin URI");
+        return nullptr;
+    }
+
+    const LV2_Options_Option* options = nullptr;
+    const LV2_URID_Map*       uridMap = nullptr;
+    const LV2UI_Resize*      uiResize = nullptr;
+    const LV2UI_Touch*       uiTouch  = nullptr;
+    void*                    parentId = nullptr;
+
+    for (int i=0; features[i] != nullptr; ++i)
+    {
+        if (std::strcmp(features[i]->URI, LV2_OPTIONS__options) == 0)
+            options = (const LV2_Options_Option*)features[i]->data;
+        else if (std::strcmp(features[i]->URI, LV2_URID__map) == 0)
+            uridMap = (const LV2_URID_Map*)features[i]->data;
+        else if (std::strcmp(features[i]->URI, LV2_UI__resize) == 0)
+            uiResize = (const LV2UI_Resize*)features[i]->data;
+        else if (std::strcmp(features[i]->URI, LV2_UI__parent) == 0)
+            parentId = features[i]->data;
+    }
+
+    if (options == nullptr)
+    {
+        d_stderr("Options feature missing, cannot continue!");
+        return nullptr;
+    }
+
+    if (uridMap == nullptr)
+    {
+        d_stderr("URID Map feature missing, cannot continue!");
+        return nullptr;
+    }
+
+    if (uiResize == nullptr)
+    {
+        d_stderr("UI Resize feature missing, cannot continue!");
+        return nullptr;
+    }
+
+    if (parentId == nullptr)
+    {
+        d_stderr("Parent Window Id missing, cannot continue!");
+        return nullptr;
+    }
+
+    *widget = parentId;
+
+    const intptr_t winId(*((intptr_t*)&parentId));
+
+    for (int i=0; options[i].key != 0; ++i)
+    {
+        if (options[i].key == uridMap->map(uridMap->handle, LV2_CORE__sampleRate))
+        {
+            if (options[i].type == uridMap->map(uridMap->handle, LV2_ATOM__Double))
+                d_lastUiSampleRate = *(const double*)options[i].value;
+            else
+                d_stderr("Host provides sampleRate but has wrong value type");
+
+            break;
+        }
+    }
+
+    if (d_lastUiSampleRate == 0.0)
+        d_lastUiSampleRate = 44100.0;
+
+    return new UiLv2(winId, uridMap, uiResize, uiTouch, controller, writeFunction);
+}
+
+#define uiPtr ((UiLv2*)ui)
+
+static void lv2ui_cleanup(LV2UI_Handle ui)
+{
+    delete uiPtr;
+}
+
+static void lv2ui_port_event(LV2UI_Handle ui, uint32_t portIndex, uint32_t bufferSize, uint32_t format, const void* buffer)
+{
+    uiPtr->lv2ui_port_event(portIndex, bufferSize, format, buffer);
+}
+
+// -----------------------------------------------------------------------
+
+static int lv2ui_idle(LV2UI_Handle ui)
+{
+    return uiPtr->lv2ui_idle();
+}
+
+#if DISTRHO_PLUGIN_WANT_PROGRAMS
+static void lv2ui_select_program(LV2UI_Handle ui, uint32_t bank, uint32_t program)
+{
+    uiPtr->lv2ui_select_program(bank, program);
+}
+#endif
+
+// -----------------------------------------------------------------------
+
+static const void* lv2ui_extension_data(const char* uri)
+{
+    static const LV2UI_Idle_Interface uiIdle = { lv2ui_idle };
+
+    if (std::strcmp(uri, LV2_UI__idleInterface) == 0)
+        return &uiIdle;
+
+#if DISTRHO_PLUGIN_WANT_PROGRAMS
+    static const LV2_Programs_UI_Interface uiPrograms = { lv2ui_select_program };
+
+    if (std::strcmp(uri, LV2_PROGRAMS__UIInterface) == 0)
+        return &uiPrograms;
+#endif
+
+    return nullptr;
+}
+
+#undef instancePtr
+
+// -----------------------------------------------------------------------
+
+static const LV2UI_Descriptor sLv2UiDescriptor = {
+    DISTRHO_UI_URI,
+    lv2ui_instantiate,
+    lv2ui_cleanup,
+    lv2ui_port_event,
+    lv2ui_extension_data
+};
+
+// -----------------------------------------------------------------------
+
+END_NAMESPACE_DISTRHO
+
+DISTRHO_PLUGIN_EXPORT
+const LV2UI_Descriptor* lv2ui_descriptor(uint32_t index)
+{
+    USE_NAMESPACE_DISTRHO
+    return (index == 0) ? &sLv2UiDescriptor : nullptr;
+}
+
+// -----------------------------------------------------------------------

distrho/src/dssi/dssi.h

@@ -0,0 +1,441 @@
+/* -*- c-basic-offset: 4 -*- */
+
+/* dssi.h
+
+   DSSI version 1.0
+   Copyright (c) 2004, 2009 Chris Cannam, Steve Harris and Sean Bolton
+   
+   This library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public License
+   as published by the Free Software Foundation; either version 2.1 of
+   the License, or (at your option) any later version.
+   
+   This library is distributed in the hope that it will be useful, but
+   WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+   Lesser General Public License for more details.
+   
+   You should have received a copy of the GNU Lesser General Public
+   License along with this library; if not, write to the Free Software
+   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+   MA  02110-1301  USA
+*/
+
+#ifndef DSSI_INCLUDED
+#define DSSI_INCLUDED
+
+#include "../ladspa/ladspa.h"
+#include "seq_event-compat.h"
+
+#define DSSI_VERSION "1.0"
+#define DSSI_VERSION_MAJOR 1
+#define DSSI_VERSION_MINOR 0
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* 
+   There is a need for an API that supports hosted MIDI soft synths
+   with GUIs in Linux audio applications.  In time the GMPI initiative
+   should comprehensively address this need, but the requirement for
+   Linux applications to be able to support simple hosted synths is
+   here now, and GMPI is not.  This proposal (the "DSSI Soft Synth
+   Interface" or DSSI, pronounced "dizzy") aims to provide a simple
+   solution in a way that we hope will prove complete and compelling
+   enough to support now, yet not so compelling as to supplant GMPI or
+   any other comprehensive future proposal.
+
+   For simplicity and familiarity, this API is based as far as
+   possible on existing work -- the LADSPA plugin API for control
+   values and audio processing, and the ALSA sequencer event types for
+   MIDI event communication.  The GUI part of the proposal is quite
+   new, but may also be applicable retroactively to LADSPA plugins
+   that do not otherwise support this synth interface.
+*/
+
+typedef struct _DSSI_Program_Descriptor {
+
+    /** Bank number for this program.  Note that DSSI does not support
+        MIDI-style separation of bank LSB and MSB values.  There is no
+        restriction on the set of available banks: the numbers do not
+        need to be contiguous, there does not need to be a bank 0, etc. */
+    unsigned long Bank;
+
+    /** Program number (unique within its bank) for this program.
+	There is no restriction on the set of available programs: the
+	numbers do not need to be contiguous, there does not need to
+	be a program 0, etc. */
+    unsigned long Program;
+
+    /** Name of the program. */
+    const char * Name;
+
+} DSSI_Program_Descriptor;
+
+
+typedef struct _DSSI_Descriptor {
+
+    /**
+     * DSSI_API_Version
+     *
+     * This member indicates the DSSI API level used by this plugin.
+     * If we're lucky, this will never be needed.  For now all plugins
+     * must set it to 1.
+     */
+    int DSSI_API_Version;
+
+    /**
+     * LADSPA_Plugin
+     *
+     * A DSSI synth plugin consists of a LADSPA plugin plus an
+     * additional framework for controlling program settings and
+     * transmitting MIDI events.  A plugin must fully implement the
+     * LADSPA descriptor fields as well as the required LADSPA
+     * functions including instantiate() and (de)activate().  It
+     * should also implement run(), with the same behaviour as if
+     * run_synth() (below) were called with no synth events.
+     *
+     * In order to instantiate a synth the host calls the LADSPA
+     * instantiate function, passing in this LADSPA_Descriptor
+     * pointer.  The returned LADSPA_Handle is used as the argument
+     * for the DSSI functions below as well as for the LADSPA ones.
+     */
+    const LADSPA_Descriptor *LADSPA_Plugin;
+
+    /**
+     * configure()
+     *
+     * This member is a function pointer that sends a piece of
+     * configuration data to the plugin.  The key argument specifies
+     * some aspect of the synth's configuration that is to be changed,
+     * and the value argument specifies a new value for it.  A plugin
+     * that does not require this facility at all may set this member
+     * to NULL.
+     *
+     * This call is intended to set some session-scoped aspect of a
+     * plugin's behaviour, for example to tell the plugin to load
+     * sample data from a particular file.  The plugin should act
+     * immediately on the request.  The call should return NULL on
+     * success, or an error string that may be shown to the user.  The
+     * host will free the returned value after use if it is non-NULL.
+     *
+     * Calls to configure() are not automated as timed events.
+     * Instead, a host should remember the last value associated with
+     * each key passed to configure() during a given session for a
+     * given plugin instance, and should call configure() with the
+     * correct value for each key the next time it instantiates the
+     * "same" plugin instance, for example on reloading a project in
+     * which the plugin was used before.  Plugins should note that a
+     * host may typically instantiate a plugin multiple times with the
+     * same configuration values, and should share data between
+     * instances where practical.
+     *
+     * Calling configure() completely invalidates the program and bank
+     * information last obtained from the plugin.
+     *
+     * Reserved and special key prefixes
+     * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+     * The DSSI: prefix
+     * ----------------
+     * Configure keys starting with DSSI: are reserved for particular
+     * purposes documented in the DSSI specification.  At the moment,
+     * there is one such key: DSSI:PROJECT_DIRECTORY.  A host may call
+     * configure() passing this key and a directory path value.  This
+     * indicates to the plugin and its UI that a directory at that
+     * path exists and may be used for project-local data.  Plugins
+     * may wish to use the project directory as a fallback location
+     * when looking for other file data, or as a base for relative
+     * paths in other configuration values.
+     *
+     * The GLOBAL: prefix
+     * ------------------
+     * Configure keys starting with GLOBAL: may be used by the plugin
+     * and its UI for any purpose, but are treated specially by the
+     * host.  When one of these keys is used in a configure OSC call
+     * from the plugin UI, the host makes the corresponding configure
+     * call (preserving the GLOBAL: prefix) not only to the target
+     * plugin but also to all other plugins in the same instance
+     * group, as well as their UIs.  Note that if any instance
+     * returns non-NULL from configure to indicate error, the host
+     * may stop there (and the set of plugins on which configure has
+     * been called will thus depend on the host implementation).
+     * See also the configure OSC call documentation in RFC.txt.
+     */
+    char *(*configure)(LADSPA_Handle Instance,
+		       const char *Key,
+		       const char *Value);
+
+    #define DSSI_RESERVED_CONFIGURE_PREFIX "DSSI:"
+    #define DSSI_GLOBAL_CONFIGURE_PREFIX "GLOBAL:"
+    #define DSSI_PROJECT_DIRECTORY_KEY \
+	DSSI_RESERVED_CONFIGURE_PREFIX "PROJECT_DIRECTORY"
+
+    /**
+     * get_program()
+     *
+     * This member is a function pointer that provides a description
+     * of a program (named preset sound) available on this synth.  A
+     * plugin that does not support programs at all should set this
+     * member to NULL.
+     *
+     * The Index argument is an index into the plugin's list of
+     * programs, not a program number as represented by the Program
+     * field of the DSSI_Program_Descriptor.  (This distinction is
+     * needed to support synths that use non-contiguous program or
+     * bank numbers.)
+     *
+     * This function returns a DSSI_Program_Descriptor pointer that is
+     * guaranteed to be valid only until the next call to get_program,
+     * deactivate, or configure, on the same plugin instance.  This
+     * function must return NULL if passed an Index argument out of
+     * range, so that the host can use it to query the number of
+     * programs as well as their properties.
+     */
+    const DSSI_Program_Descriptor *(*get_program)(LADSPA_Handle Instance,
+						  unsigned long Index);
+    
+    /**
+     * select_program()
+     *
+     * This member is a function pointer that selects a new program
+     * for this synth.  The program change should take effect
+     * immediately at the start of the next run_synth() call.  (This
+     * means that a host providing the capability of changing programs
+     * between any two notes on a track must vary the block size so as
+     * to place the program change at the right place.  A host that
+     * wanted to avoid this would probably just instantiate a plugin
+     * for each program.)
+     * 
+     * A plugin that does not support programs at all should set this
+     * member NULL.  Plugins should ignore a select_program() call
+     * with an invalid bank or program.
+     *
+     * A plugin is not required to select any particular default
+     * program on activate(): it's the host's duty to set a program
+     * explicitly.  The current program is invalidated by any call to
+     * configure().
+     *
+     * A plugin is permitted to re-write the values of its input
+     * control ports when select_program is called.  The host should
+     * re-read the input control port values and update its own
+     * records appropriately.  (This is the only circumstance in
+     * which a DSSI plugin is allowed to modify its own input ports.)
+     */
+    void (*select_program)(LADSPA_Handle Instance,
+			   unsigned long Bank,
+			   unsigned long Program);
+
+    /**
+     * get_midi_controller_for_port()
+     *
+     * This member is a function pointer that returns the MIDI
+     * controller number or NRPN that should be mapped to the given
+     * input control port.  If the given port should not have any MIDI
+     * controller mapped to it, the function should return DSSI_NONE.
+     * The behaviour of this function is undefined if the given port
+     * number does not correspond to an input control port.  A plugin
+     * that does not want MIDI controllers mapped to ports at all may
+     * set this member NULL.
+     *
+     * Correct values can be got using the macros DSSI_CC(num) and
+     * DSSI_NRPN(num) as appropriate, and values can be combined using
+     * bitwise OR: e.g. DSSI_CC(23) | DSSI_NRPN(1069) means the port
+     * should respond to CC #23 and NRPN #1069.
+     *
+     * The host is responsible for doing proper scaling from MIDI
+     * controller and NRPN value ranges to port ranges according to
+     * the plugin's LADSPA port hints.  Hosts should not deliver
+     * through run_synth any MIDI controller events that have already
+     * been mapped to control port values.
+     *
+     * A plugin should not attempt to request mappings from
+     * controllers 0 or 32 (MIDI Bank Select MSB and LSB).
+     */
+    int (*get_midi_controller_for_port)(LADSPA_Handle Instance,
+					unsigned long Port);
+
+    /**
+     * run_synth()
+     *
+     * This member is a function pointer that runs a synth for a
+     * block.  This is identical in function to the LADSPA run()
+     * function, except that it also supplies events to the synth.
+     *
+     * A plugin may provide this function, run_multiple_synths() (see
+     * below), both, or neither (if it is not in fact a synth).  A
+     * plugin that does not provide this function must set this member
+     * to NULL.  Authors of synth plugins are encouraged to provide
+     * this function if at all possible.
+     *
+     * The Events pointer points to a block of EventCount ALSA
+     * sequencer events, which is used to communicate MIDI and related
+     * events to the synth.  Each event is timestamped relative to the
+     * start of the block, (mis)using the ALSA "tick time" field as a
+     * frame count. The host is responsible for ensuring that events
+     * with differing timestamps are already ordered by time.
+     *
+     * See also the notes on activation, port connection etc in
+     * ladpsa.h, in the context of the LADSPA run() function.
+     *
+     * Note Events
+     * ~~~~~~~~~~~
+     * There are two minor requirements aimed at making the plugin
+     * writer's life as simple as possible:
+     * 
+     * 1. A host must never send events of type SND_SEQ_EVENT_NOTE.
+     * Notes should always be sent as separate SND_SEQ_EVENT_NOTE_ON
+     * and NOTE_OFF events.  A plugin should discard any one-point
+     * NOTE events it sees.
+     * 
+     * 2. A host must not attempt to switch notes off by sending
+     * zero-velocity NOTE_ON events.  It should always send true
+     * NOTE_OFFs.  It is the host's responsibility to remap events in
+     * cases where an external MIDI source has sent it zero-velocity
+     * NOTE_ONs.
+     *
+     * Bank and Program Events
+     * ~~~~~~~~~~~~~~~~~~~~~~~
+     * Hosts must map MIDI Bank Select MSB and LSB (0 and 32)
+     * controllers and MIDI Program Change events onto the banks and
+     * programs specified by the plugin, using the DSSI select_program
+     * call.  No host should ever deliver a program change or bank
+     * select controller to a plugin via run_synth.
+     */
+    void (*run_synth)(LADSPA_Handle    Instance,
+		      unsigned long    SampleCount,
+		      snd_seq_event_t *Events,
+		      unsigned long    EventCount);
+
+    /**
+     * run_synth_adding()
+     *
+     * This member is a function pointer that runs an instance of a
+     * synth for a block, adding its outputs to the values already
+     * present at the output ports.  This is provided for symmetry
+     * with LADSPA run_adding(), and is equally optional.  A plugin
+     * that does not provide it must set this member to NULL.
+     */
+    void (*run_synth_adding)(LADSPA_Handle    Instance,
+			     unsigned long    SampleCount,
+			     snd_seq_event_t *Events,
+			     unsigned long    EventCount);
+
+    /**
+     * run_multiple_synths()
+     *
+     * This member is a function pointer that runs multiple synth
+     * instances for a block.  This is very similar to run_synth(),
+     * except that Instances, Events, and EventCounts each point to
+     * arrays that hold the LADSPA handles, event buffers, and
+     * event counts for each of InstanceCount instances.  That is,
+     * Instances points to an array of InstanceCount pointers to
+     * DSSI plugin instantiations, Events points to an array of
+     * pointers to each instantiation's respective event list, and
+     * EventCounts points to an array containing each instantiation's
+     * respective event count.
+     *
+     * A host using this function must guarantee that ALL active
+     * instances of the plugin are represented in each call to the
+     * function -- that is, a host may not call run_multiple_synths()
+     * for some instances of a given plugin and then call run_synth()
+     * as well for others.  'All .. instances of the plugin' means
+     * every instance sharing the same LADSPA label and shared object
+     * (*.so) file (rather than every instance sharing the same *.so).
+     * 'Active' means any instance for which activate() has been called
+     * but deactivate() has not.
+     *
+     * A plugin may provide this function, run_synths() (see above),
+     * both, or neither (if it not in fact a synth).  A plugin that
+     * does not provide this function must set this member to NULL.
+     * Plugin authors implementing run_multiple_synths are strongly
+     * encouraged to implement run_synth as well if at all possible,
+     * to aid simplistic hosts, even where it would be less efficient
+     * to use it.
+     */
+    void (*run_multiple_synths)(unsigned long     InstanceCount,
+                                LADSPA_Handle    *Instances,
+                                unsigned long     SampleCount,
+                                snd_seq_event_t **Events,
+                                unsigned long    *EventCounts);
+
+    /**
+     * run_multiple_synths_adding()
+     *
+     * This member is a function pointer that runs multiple synth
+     * instances for a block, adding each synth's outputs to the
+     * values already present at the output ports.  This is provided
+     * for symmetry with both the DSSI run_multiple_synths() and LADSPA
+     * run_adding() functions, and is equally optional.  A plugin
+     * that does not provide it must set this member to NULL.
+     */
+    void (*run_multiple_synths_adding)(unsigned long     InstanceCount,
+                                       LADSPA_Handle    *Instances,
+                                       unsigned long     SampleCount,
+                                       snd_seq_event_t **Events,
+                                       unsigned long    *EventCounts);
+
+    /**
+     * set_custom_data()
+     */
+    int (*set_custom_data)(LADSPA_Handle Instance,
+                           void         *Data,
+                           unsigned long DataLength);
+
+    /**
+     * get_custom_data()
+     */
+    int (*get_custom_data)(LADSPA_Handle  Instance,
+                           void         **Data,
+                           unsigned long *DataLength);
+
+} DSSI_Descriptor;
+
+/**
+ * DSSI supports a plugin discovery method similar to that of LADSPA:
+ *
+ * - DSSI hosts may wish to locate DSSI plugin shared object files by
+ *    searching the paths contained in the DSSI_PATH and LADSPA_PATH
+ *    environment variables, if they are present.  Both are expected
+ *    to be colon-separated lists of directories to be searched (in
+ *    order), and DSSI_PATH should be searched first if both variables
+ *    are set.
+ *
+ * - Each shared object file containing DSSI plugins must include a
+ *   function dssi_descriptor(), with the following function prototype
+ *   and C-style linkage.  Hosts may enumerate the plugin types
+ *   available in the shared object file by repeatedly calling
+ *   this function with successive Index values (beginning from 0),
+ *   until a return value of NULL indicates no more plugin types are
+ *   available.  Each non-NULL return is the DSSI_Descriptor
+ *   of a distinct plugin type.
+ */
+
+const DSSI_Descriptor *dssi_descriptor(unsigned long Index);
+  
+typedef const DSSI_Descriptor *(*DSSI_Descriptor_Function)(unsigned long Index);
+
+/*
+ * Macros to specify particular MIDI controllers in return values from
+ * get_midi_controller_for_port()
+ */
+
+#define DSSI_CC_BITS			0x20000000
+#define DSSI_NRPN_BITS			0x40000000
+
+#define DSSI_NONE			-1
+#define DSSI_CONTROLLER_IS_SET(n)	(DSSI_NONE != (n))
+
+#define DSSI_CC(n)			(DSSI_CC_BITS | (n))
+#define DSSI_IS_CC(n)			(DSSI_CC_BITS & (n))
+#define DSSI_CC_NUMBER(n)		((n) & 0x7f)
+
+#define DSSI_NRPN(n)			(DSSI_NRPN_BITS | ((n) << 7))
+#define DSSI_IS_NRPN(n)			(DSSI_NRPN_BITS & (n))
+#define DSSI_NRPN_NUMBER(n)		(((n) >> 7) & 0x3fff)
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* DSSI_INCLUDED */

distrho/src/dssi/seq_event-compat.h

@@ -0,0 +1,272 @@
+/*
+ *   This library is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU Lesser General Public License as
+ *   published by the Free Software Foundation; either version 2.1 of
+ *   the License, or (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU Lesser General Public License for more details.
+ *
+ *   You should have received a copy of the GNU Lesser General Public
+ *   License along with this library; if not, write to the Free Software
+ *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
+ *
+ */
+
+#ifndef __ALSA_SEQ_EVENT_COMPAT_H
+#define __ALSA_SEQ_EVENT_COMPAT_H
+
+/**
+ * Sequencer event data type
+ */
+typedef unsigned char snd_seq_event_type_t;
+
+/** Sequencer event type */
+enum snd_seq_event_type {
+        /** system status; event data type = #snd_seq_result_t */
+        SND_SEQ_EVENT_SYSTEM = 0,
+        /** returned result status; event data type = #snd_seq_result_t */
+        SND_SEQ_EVENT_RESULT,
+
+        /** note on and off with duration; event data type = #snd_seq_ev_note_t */
+        SND_SEQ_EVENT_NOTE = 5,
+        /** note on; event data type = #snd_seq_ev_note_t */
+        SND_SEQ_EVENT_NOTEON,
+        /** note off; event data type = #snd_seq_ev_note_t */
+        SND_SEQ_EVENT_NOTEOFF,
+        /** key pressure change (aftertouch); event data type = #snd_seq_ev_note_t */
+        SND_SEQ_EVENT_KEYPRESS,
+
+        /** controller; event data type = #snd_seq_ev_ctrl_t */
+        SND_SEQ_EVENT_CONTROLLER = 10,
+        /** program change; event data type = #snd_seq_ev_ctrl_t */
+        SND_SEQ_EVENT_PGMCHANGE,
+        /** channel pressure; event data type = #snd_seq_ev_ctrl_t */
+        SND_SEQ_EVENT_CHANPRESS,
+        /** pitchwheel; event data type = #snd_seq_ev_ctrl_t; data is from -8192 to 8191) */
+        SND_SEQ_EVENT_PITCHBEND,
+        /** 14 bit controller value; event data type = #snd_seq_ev_ctrl_t */
+        SND_SEQ_EVENT_CONTROL14,
+        /** 14 bit NRPN;  event data type = #snd_seq_ev_ctrl_t */
+        SND_SEQ_EVENT_NONREGPARAM,
+        /** 14 bit RPN; event data type = #snd_seq_ev_ctrl_t */
+        SND_SEQ_EVENT_REGPARAM,
+
+        /** SPP with LSB and MSB values; event data type = #snd_seq_ev_ctrl_t */
+        SND_SEQ_EVENT_SONGPOS = 20,
+        /** Song Select with song ID number; event data type = #snd_seq_ev_ctrl_t */
+        SND_SEQ_EVENT_SONGSEL,
+        /** midi time code quarter frame; event data type = #snd_seq_ev_ctrl_t */
+        SND_SEQ_EVENT_QFRAME,
+        /** SMF Time Signature event; event data type = #snd_seq_ev_ctrl_t */
+        SND_SEQ_EVENT_TIMESIGN,
+        /** SMF Key Signature event; event data type = #snd_seq_ev_ctrl_t */
+        SND_SEQ_EVENT_KEYSIGN,
+
+        /** MIDI Real Time Start message; event data type = #snd_seq_ev_queue_control_t */
+        SND_SEQ_EVENT_START = 30,
+        /** MIDI Real Time Continue message; event data type = #snd_seq_ev_queue_control_t */
+        SND_SEQ_EVENT_CONTINUE,
+        /** MIDI Real Time Stop message; event data type = #snd_seq_ev_queue_control_t */
+        SND_SEQ_EVENT_STOP,
+        /** Set tick queue position; event data type = #snd_seq_ev_queue_control_t */
+        SND_SEQ_EVENT_SETPOS_TICK,
+        /** Set real-time queue position; event data type = #snd_seq_ev_queue_control_t */
+        SND_SEQ_EVENT_SETPOS_TIME,
+        /** (SMF) Tempo event; event data type = #snd_seq_ev_queue_control_t */
+        SND_SEQ_EVENT_TEMPO,
+        /** MIDI Real Time Clock message; event data type = #snd_seq_ev_queue_control_t */
+        SND_SEQ_EVENT_CLOCK,
+        /** MIDI Real Time Tick message; event data type = #snd_seq_ev_queue_control_t */
+        SND_SEQ_EVENT_TICK,
+        /** Queue timer skew; event data type = #snd_seq_ev_queue_control_t */
+        SND_SEQ_EVENT_QUEUE_SKEW,
+        /** Sync position changed; event data type = #snd_seq_ev_queue_control_t */
+        SND_SEQ_EVENT_SYNC_POS,
+
+        /** Tune request; event data type = none */
+        SND_SEQ_EVENT_TUNE_REQUEST = 40,
+        /** Reset to power-on state; event data type = none */
+        SND_SEQ_EVENT_RESET,
+        /** Active sensing event; event data type = none */
+        SND_SEQ_EVENT_SENSING,
+
+        /** Echo-back event; event data type = any type */
+        SND_SEQ_EVENT_ECHO = 50,
+        /** OSS emulation raw event; event data type = any type */
+        SND_SEQ_EVENT_OSS,
+
+        /** New client has connected; event data type = #snd_seq_addr_t */
+        SND_SEQ_EVENT_CLIENT_START = 60,
+        /** Client has left the system; event data type = #snd_seq_addr_t */
+        SND_SEQ_EVENT_CLIENT_EXIT,
+        /** Client status/info has changed; event data type = #snd_seq_addr_t */
+        SND_SEQ_EVENT_CLIENT_CHANGE,
+        /** New port was created; event data type = #snd_seq_addr_t */
+        SND_SEQ_EVENT_PORT_START,
+        /** Port was deleted from system; event data type = #snd_seq_addr_t */
+        SND_SEQ_EVENT_PORT_EXIT,
+        /** Port status/info has changed; event data type = #snd_seq_addr_t */
+        SND_SEQ_EVENT_PORT_CHANGE,
+
+        /** Ports connected; event data type = #snd_seq_connect_t */
+        SND_SEQ_EVENT_PORT_SUBSCRIBED,
+        /** Ports disconnected; event data type = #snd_seq_connect_t */
+        SND_SEQ_EVENT_PORT_UNSUBSCRIBED,
+
+        /** user-defined event; event data type = any (fixed size) */
+        SND_SEQ_EVENT_USR0 = 90,
+        /** user-defined event; event data type = any (fixed size) */
+        SND_SEQ_EVENT_USR1,
+        /** user-defined event; event data type = any (fixed size) */
+        SND_SEQ_EVENT_USR2,
+        /** user-defined event; event data type = any (fixed size) */
+        SND_SEQ_EVENT_USR3,
+        /** user-defined event; event data type = any (fixed size) */
+        SND_SEQ_EVENT_USR4,
+        /** user-defined event; event data type = any (fixed size) */
+        SND_SEQ_EVENT_USR5,
+        /** user-defined event; event data type = any (fixed size) */
+        SND_SEQ_EVENT_USR6,
+        /** user-defined event; event data type = any (fixed size) */
+        SND_SEQ_EVENT_USR7,
+        /** user-defined event; event data type = any (fixed size) */
+        SND_SEQ_EVENT_USR8,
+        /** user-defined event; event data type = any (fixed size) */
+        SND_SEQ_EVENT_USR9,
+
+        /** system exclusive data (variable length);  event data type = #snd_seq_ev_ext_t */
+        SND_SEQ_EVENT_SYSEX = 130,
+        /** error event;  event data type = #snd_seq_ev_ext_t */
+        SND_SEQ_EVENT_BOUNCE,
+        /** reserved for user apps;  event data type = #snd_seq_ev_ext_t */
+        SND_SEQ_EVENT_USR_VAR0 = 135,
+        /** reserved for user apps; event data type = #snd_seq_ev_ext_t */
+        SND_SEQ_EVENT_USR_VAR1,
+        /** reserved for user apps; event data type = #snd_seq_ev_ext_t */
+        SND_SEQ_EVENT_USR_VAR2,
+        /** reserved for user apps; event data type = #snd_seq_ev_ext_t */
+        SND_SEQ_EVENT_USR_VAR3,
+        /** reserved for user apps; event data type = #snd_seq_ev_ext_t */
+        SND_SEQ_EVENT_USR_VAR4,
+
+        /** NOP; ignored in any case */
+        SND_SEQ_EVENT_NONE = 255
+};
+
+/** Sequencer event address */
+typedef struct snd_seq_addr {
+        unsigned char client;	/**< Client id */
+        unsigned char port;	/**< Port id */
+} snd_seq_addr_t;
+
+/** Connection (subscription) between ports */
+typedef struct snd_seq_connect {
+        snd_seq_addr_t sender;	/**< sender address */
+        snd_seq_addr_t dest;	/**< destination address */
+} snd_seq_connect_t;
+
+/** Real-time data record */
+typedef struct snd_seq_real_time {
+        unsigned int tv_sec;		/**< seconds */
+        unsigned int tv_nsec;		/**< nanoseconds */
+} snd_seq_real_time_t;
+
+/** (MIDI) Tick-time data record */
+typedef unsigned int snd_seq_tick_time_t;
+
+/** unioned time stamp */
+typedef union snd_seq_timestamp {
+        snd_seq_tick_time_t tick;       /**< tick-time */
+        struct snd_seq_real_time time;  /**< real-time */
+} snd_seq_timestamp_t;
+
+/** Note event */
+typedef struct snd_seq_ev_note {
+        unsigned char channel;		/**< channel number */
+        unsigned char note;		/**< note */
+        unsigned char velocity;		/**< velocity */
+        unsigned char off_velocity;	/**< note-off velocity; only for #SND_SEQ_EVENT_NOTE */
+        unsigned int duration;		/**< duration until note-off; only for #SND_SEQ_EVENT_NOTE */
+} snd_seq_ev_note_t;
+
+/** Controller event */
+typedef struct snd_seq_ev_ctrl {
+        unsigned char channel;		/**< channel number */
+        unsigned char unused[3];	/**< reserved */
+        unsigned int param;		/**< control parameter */
+        signed int value;		/**< control value */
+} snd_seq_ev_ctrl_t;
+
+/** generic set of bytes (12x8 bit) */
+typedef struct snd_seq_ev_raw8 {
+        unsigned char d[12];		/**< 8 bit value */
+} snd_seq_ev_raw8_t;
+
+/** generic set of integers (3x32 bit) */
+typedef struct snd_seq_ev_raw32 {
+        unsigned int d[3];		/**< 32 bit value */
+} snd_seq_ev_raw32_t;
+
+/** external stored data */
+typedef struct snd_seq_ev_ext {
+        unsigned int len;		/**< length of data */
+        void *ptr;			/**< pointer to data (note: can be 64-bit) */
+} __attribute__((packed)) snd_seq_ev_ext_t;
+
+/** Result events */
+typedef struct snd_seq_result {
+        int event;		/**< processed event type */
+        int result;		/**< status */
+} snd_seq_result_t;
+
+/** Queue skew values */
+typedef struct snd_seq_queue_skew {
+        unsigned int value;	/**< skew value */
+        unsigned int base;	/**< skew base */
+} snd_seq_queue_skew_t;
+
+/** queue timer control */
+typedef struct snd_seq_ev_queue_control {
+        unsigned char queue;			/**< affected queue */
+        unsigned char unused[3];		/**< reserved */
+        union {
+                signed int value;		/**< affected value (e.g. tempo) */
+                snd_seq_timestamp_t time;	/**< time */
+                unsigned int position;		/**< sync position */
+                snd_seq_queue_skew_t skew;	/**< queue skew */
+                unsigned int d32[2];		/**< any data */
+                unsigned char d8[8];		/**< any data */
+        } param;				/**< data value union */
+} snd_seq_ev_queue_control_t;
+
+/** Sequencer event */
+typedef struct snd_seq_event {
+        snd_seq_event_type_t type;      /**< event type */
+        unsigned char flags;            /**< event flags */
+        unsigned char tag;              /**< tag */
+
+        unsigned char queue;            /**< schedule queue */
+        snd_seq_timestamp_t time;       /**< schedule time */
+
+        snd_seq_addr_t source;          /**< source address */
+        snd_seq_addr_t dest;            /**< destination address */
+
+        union {
+                snd_seq_ev_note_t note;         /**< note information */
+                snd_seq_ev_ctrl_t control;      /**< MIDI control information */
+                snd_seq_ev_raw8_t raw8;         /**< raw8 data */
+                snd_seq_ev_raw32_t raw32;       /**< raw32 data */
+                snd_seq_ev_ext_t ext;           /**< external data */
+                snd_seq_ev_queue_control_t queue; /**< queue control */
+                snd_seq_timestamp_t time;       /**< timestamp */
+                snd_seq_addr_t addr;            /**< address */
+                snd_seq_connect_t connect;      /**< connect information */
+                snd_seq_result_t result;        /**< operation result code */
+        } data;                         /**< event data... */
+} snd_seq_event_t;
+
+#endif /* __ALSA_SEQ_EVENT_COMPAT_H */
+

distrho/src/ladspa/ladspa.h

@@ -0,0 +1,603 @@
+/* ladspa.h
+
+   Linux Audio Developer's Simple Plugin API Version 1.1[LGPL].
+   Copyright (C) 2000-2002 Richard W.E. Furse, Paul Barton-Davis,
+   Stefan Westerfeld.
+   
+   This library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public License
+   as published by the Free Software Foundation; either version 2.1 of
+   the License, or (at your option) any later version.
+   
+   This library is distributed in the hope that it will be useful, but
+   WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+   Lesser General Public License for more details.
+   
+   You should have received a copy of the GNU Lesser General Public
+   License along with this library; if not, write to the Free Software
+   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
+   USA. */
+
+#ifndef LADSPA_INCLUDED
+#define LADSPA_INCLUDED
+
+#define LADSPA_VERSION "1.1"
+#define LADSPA_VERSION_MAJOR 1
+#define LADSPA_VERSION_MINOR 1
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*****************************************************************************/
+
+/* Overview: 
+
+   There is a large number of synthesis packages in use or development
+   on the Linux platform at this time. This API (`The Linux Audio
+   Developer's Simple Plugin API') attempts to give programmers the
+   ability to write simple `plugin' audio processors in C/C++ and link
+   them dynamically (`plug') into a range of these packages (`hosts').
+   It should be possible for any host and any plugin to communicate
+   completely through this interface.
+
+   This API is deliberately short and simple. To achieve compatibility
+   with a range of promising Linux sound synthesis packages it
+   attempts to find the `greatest common divisor' in their logical
+   behaviour. Having said this, certain limiting decisions are
+   implicit, notably the use of a fixed type (LADSPA_Data) for all
+   data transfer and absence of a parameterised `initialisation'
+   phase. See below for the LADSPA_Data typedef.
+
+   Plugins are expected to distinguish between control and audio
+   data. Plugins have `ports' that are inputs or outputs for audio or
+   control data and each plugin is `run' for a `block' corresponding
+   to a short time interval measured in samples. Audio data is
+   communicated using arrays of LADSPA_Data, allowing a block of audio
+   to be processed by the plugin in a single pass. Control data is
+   communicated using single LADSPA_Data values. Control data has a
+   single value at the start of a call to the `run()' or `run_adding()'
+   function, and may be considered to remain this value for its
+   duration. The plugin may assume that all its input and output ports
+   have been connected to the relevant data location (see the
+   `connect_port()' function below) before it is asked to run.
+
+   Plugins will reside in shared object files suitable for dynamic
+   linking by dlopen() and family. The file will provide a number of
+   `plugin types' that can be used to instantiate actual plugins
+   (sometimes known as `plugin instances') that can be connected
+   together to perform tasks.
+
+   This API contains very limited error-handling. */
+
+/*****************************************************************************/
+
+/* Fundamental data type passed in and out of plugin. This data type
+   is used to communicate audio samples and control values. It is
+   assumed that the plugin will work sensibly given any numeric input
+   value although it may have a preferred range (see hints below). 
+
+   For audio it is generally assumed that 1.0f is the `0dB' reference
+   amplitude and is a `normal' signal level. */
+
+typedef float LADSPA_Data;
+
+/*****************************************************************************/
+
+/* Special Plugin Properties: 
+ 
+   Optional features of the plugin type are encapsulated in the
+   LADSPA_Properties type. This is assembled by ORing individual
+   properties together. */
+
+typedef int LADSPA_Properties;
+
+/* Property LADSPA_PROPERTY_REALTIME indicates that the plugin has a
+   real-time dependency (e.g. listens to a MIDI device) and so its
+   output must not be cached or subject to significant latency. */
+#define LADSPA_PROPERTY_REALTIME        0x1
+
+/* Property LADSPA_PROPERTY_INPLACE_BROKEN indicates that the plugin
+   may cease to work correctly if the host elects to use the same data
+   location for both input and output (see connect_port()). This
+   should be avoided as enabling this flag makes it impossible for
+   hosts to use the plugin to process audio `in-place.' */
+#define LADSPA_PROPERTY_INPLACE_BROKEN  0x2
+
+/* Property LADSPA_PROPERTY_HARD_RT_CAPABLE indicates that the plugin
+   is capable of running not only in a conventional host but also in a
+   `hard real-time' environment. To qualify for this the plugin must
+   satisfy all of the following:
+
+   (1) The plugin must not use malloc(), free() or other heap memory
+   management within its run() or run_adding() functions. All new
+   memory used in run() must be managed via the stack. These
+   restrictions only apply to the run() function.
+
+   (2) The plugin will not attempt to make use of any library
+   functions with the exceptions of functions in the ANSI standard C
+   and C maths libraries, which the host is expected to provide.
+
+   (3) The plugin will not access files, devices, pipes, sockets, IPC
+   or any other mechanism that might result in process or thread
+   blocking.
+      
+   (4) The plugin will take an amount of time to execute a run() or
+   run_adding() call approximately of form (A+B*SampleCount) where A
+   and B depend on the machine and host in use. This amount of time
+   may not depend on input signals or plugin state. The host is left
+   the responsibility to perform timings to estimate upper bounds for
+   A and B. */
+#define LADSPA_PROPERTY_HARD_RT_CAPABLE 0x4
+
+#define LADSPA_IS_REALTIME(x)        ((x) & LADSPA_PROPERTY_REALTIME)
+#define LADSPA_IS_INPLACE_BROKEN(x)  ((x) & LADSPA_PROPERTY_INPLACE_BROKEN)
+#define LADSPA_IS_HARD_RT_CAPABLE(x) ((x) & LADSPA_PROPERTY_HARD_RT_CAPABLE)
+
+/*****************************************************************************/
+
+/* Plugin Ports: 
+
+   Plugins have `ports' that are inputs or outputs for audio or
+   data. Ports can communicate arrays of LADSPA_Data (for audio
+   inputs/outputs) or single LADSPA_Data values (for control
+   input/outputs). This information is encapsulated in the
+   LADSPA_PortDescriptor type which is assembled by ORing individual
+   properties together.
+
+   Note that a port must be an input or an output port but not both
+   and that a port must be a control or audio port but not both. */
+
+typedef int LADSPA_PortDescriptor;
+
+/* Property LADSPA_PORT_INPUT indicates that the port is an input. */
+#define LADSPA_PORT_INPUT   0x1
+
+/* Property LADSPA_PORT_OUTPUT indicates that the port is an output. */
+#define LADSPA_PORT_OUTPUT  0x2
+
+/* Property LADSPA_PORT_CONTROL indicates that the port is a control
+   port. */
+#define LADSPA_PORT_CONTROL 0x4
+
+/* Property LADSPA_PORT_AUDIO indicates that the port is a audio
+   port. */
+#define LADSPA_PORT_AUDIO   0x8
+
+#define LADSPA_IS_PORT_INPUT(x)   ((x) & LADSPA_PORT_INPUT)
+#define LADSPA_IS_PORT_OUTPUT(x)  ((x) & LADSPA_PORT_OUTPUT)
+#define LADSPA_IS_PORT_CONTROL(x) ((x) & LADSPA_PORT_CONTROL)
+#define LADSPA_IS_PORT_AUDIO(x)   ((x) & LADSPA_PORT_AUDIO)
+
+/*****************************************************************************/
+
+/* Plugin Port Range Hints: 
+
+   The host may wish to provide a representation of data entering or
+   leaving a plugin (e.g. to generate a GUI automatically). To make
+   this more meaningful, the plugin should provide `hints' to the host
+   describing the usual values taken by the data.
+   
+   Note that these are only hints. The host may ignore them and the
+   plugin must not assume that data supplied to it is meaningful. If
+   the plugin receives invalid input data it is expected to continue
+   to run without failure and, where possible, produce a sensible
+   output (e.g. a high-pass filter given a negative cutoff frequency
+   might switch to an all-pass mode).
+    
+   Hints are meaningful for all input and output ports but hints for
+   input control ports are expected to be particularly useful.
+   
+   More hint information is encapsulated in the
+   LADSPA_PortRangeHintDescriptor type which is assembled by ORing
+   individual hint types together. Hints may require further
+   LowerBound and UpperBound information.
+
+   All the hint information for a particular port is aggregated in the
+   LADSPA_PortRangeHint structure. */
+
+typedef int LADSPA_PortRangeHintDescriptor;
+
+/* Hint LADSPA_HINT_BOUNDED_BELOW indicates that the LowerBound field
+   of the LADSPA_PortRangeHint should be considered meaningful. The
+   value in this field should be considered the (inclusive) lower
+   bound of the valid range. If LADSPA_HINT_SAMPLE_RATE is also
+   specified then the value of LowerBound should be multiplied by the
+   sample rate. */
+#define LADSPA_HINT_BOUNDED_BELOW   0x1
+
+/* Hint LADSPA_HINT_BOUNDED_ABOVE indicates that the UpperBound field
+   of the LADSPA_PortRangeHint should be considered meaningful. The
+   value in this field should be considered the (inclusive) upper
+   bound of the valid range. If LADSPA_HINT_SAMPLE_RATE is also
+   specified then the value of UpperBound should be multiplied by the
+   sample rate. */
+#define LADSPA_HINT_BOUNDED_ABOVE   0x2
+
+/* Hint LADSPA_HINT_TOGGLED indicates that the data item should be
+   considered a Boolean toggle. Data less than or equal to zero should
+   be considered `off' or `false,' and data above zero should be
+   considered `on' or `true.' LADSPA_HINT_TOGGLED may not be used in
+   conjunction with any other hint except LADSPA_HINT_DEFAULT_0 or
+   LADSPA_HINT_DEFAULT_1. */
+#define LADSPA_HINT_TOGGLED         0x4
+
+/* Hint LADSPA_HINT_SAMPLE_RATE indicates that any bounds specified
+   should be interpreted as multiples of the sample rate. For
+   instance, a frequency range from 0Hz to the Nyquist frequency (half
+   the sample rate) could be requested by this hint in conjunction
+   with LowerBound = 0 and UpperBound = 0.5. Hosts that support bounds
+   at all must support this hint to retain meaning. */
+#define LADSPA_HINT_SAMPLE_RATE     0x8
+
+/* Hint LADSPA_HINT_LOGARITHMIC indicates that it is likely that the
+   user will find it more intuitive to view values using a logarithmic
+   scale. This is particularly useful for frequencies and gains. */
+#define LADSPA_HINT_LOGARITHMIC     0x10
+
+/* Hint LADSPA_HINT_INTEGER indicates that a user interface would
+   probably wish to provide a stepped control taking only integer
+   values. Any bounds set should be slightly wider than the actual
+   integer range required to avoid floating point rounding errors. For
+   instance, the integer set {0,1,2,3} might be described as [-0.1,
+   3.1]. */
+#define LADSPA_HINT_INTEGER         0x20
+
+/* The various LADSPA_HINT_HAS_DEFAULT_* hints indicate a `normal'
+   value for the port that is sensible as a default. For instance,
+   this value is suitable for use as an initial value in a user
+   interface or as a value the host might assign to a control port
+   when the user has not provided one. Defaults are encoded using a
+   mask so only one default may be specified for a port. Some of the
+   hints make use of lower and upper bounds, in which case the
+   relevant bound or bounds must be available and
+   LADSPA_HINT_SAMPLE_RATE must be applied as usual. The resulting
+   default must be rounded if LADSPA_HINT_INTEGER is present. Default
+   values were introduced in LADSPA v1.1. */
+#define LADSPA_HINT_DEFAULT_MASK    0x3C0
+
+/* This default values indicates that no default is provided. */
+#define LADSPA_HINT_DEFAULT_NONE    0x0
+
+/* This default hint indicates that the suggested lower bound for the
+   port should be used. */
+#define LADSPA_HINT_DEFAULT_MINIMUM 0x40
+
+/* This default hint indicates that a low value between the suggested
+   lower and upper bounds should be chosen. For ports with
+   LADSPA_HINT_LOGARITHMIC, this should be exp(log(lower) * 0.75 +
+   log(upper) * 0.25). Otherwise, this should be (lower * 0.75 + upper
+   * 0.25). */
+#define LADSPA_HINT_DEFAULT_LOW     0x80
+
+/* This default hint indicates that a middle value between the
+   suggested lower and upper bounds should be chosen. For ports with
+   LADSPA_HINT_LOGARITHMIC, this should be exp(log(lower) * 0.5 +
+   log(upper) * 0.5). Otherwise, this should be (lower * 0.5 + upper *
+   0.5). */
+#define LADSPA_HINT_DEFAULT_MIDDLE  0xC0
+
+/* This default hint indicates that a high value between the suggested
+   lower and upper bounds should be chosen. For ports with
+   LADSPA_HINT_LOGARITHMIC, this should be exp(log(lower) * 0.25 +
+   log(upper) * 0.75). Otherwise, this should be (lower * 0.25 + upper
+   * 0.75). */
+#define LADSPA_HINT_DEFAULT_HIGH    0x100
+
+/* This default hint indicates that the suggested upper bound for the
+   port should be used. */
+#define LADSPA_HINT_DEFAULT_MAXIMUM 0x140
+
+/* This default hint indicates that the number 0 should be used. Note
+   that this default may be used in conjunction with
+   LADSPA_HINT_TOGGLED. */
+#define LADSPA_HINT_DEFAULT_0       0x200
+
+/* This default hint indicates that the number 1 should be used. Note
+   that this default may be used in conjunction with
+   LADSPA_HINT_TOGGLED. */
+#define LADSPA_HINT_DEFAULT_1       0x240
+
+/* This default hint indicates that the number 100 should be used. */
+#define LADSPA_HINT_DEFAULT_100     0x280
+
+/* This default hint indicates that the Hz frequency of `concert A'
+   should be used. This will be 440 unless the host uses an unusual
+   tuning convention, in which case it may be within a few Hz. */
+#define LADSPA_HINT_DEFAULT_440     0x2C0
+
+#define LADSPA_IS_HINT_BOUNDED_BELOW(x)   ((x) & LADSPA_HINT_BOUNDED_BELOW)
+#define LADSPA_IS_HINT_BOUNDED_ABOVE(x)   ((x) & LADSPA_HINT_BOUNDED_ABOVE)
+#define LADSPA_IS_HINT_TOGGLED(x)         ((x) & LADSPA_HINT_TOGGLED)
+#define LADSPA_IS_HINT_SAMPLE_RATE(x)     ((x) & LADSPA_HINT_SAMPLE_RATE)
+#define LADSPA_IS_HINT_LOGARITHMIC(x)     ((x) & LADSPA_HINT_LOGARITHMIC)
+#define LADSPA_IS_HINT_INTEGER(x)         ((x) & LADSPA_HINT_INTEGER)
+
+#define LADSPA_IS_HINT_HAS_DEFAULT(x)     ((x) & LADSPA_HINT_DEFAULT_MASK)
+#define LADSPA_IS_HINT_DEFAULT_MINIMUM(x) (((x) & LADSPA_HINT_DEFAULT_MASK)   \
+                                           == LADSPA_HINT_DEFAULT_MINIMUM)
+#define LADSPA_IS_HINT_DEFAULT_LOW(x)     (((x) & LADSPA_HINT_DEFAULT_MASK)   \
+                                           == LADSPA_HINT_DEFAULT_LOW)
+#define LADSPA_IS_HINT_DEFAULT_MIDDLE(x)  (((x) & LADSPA_HINT_DEFAULT_MASK)   \
+                                           == LADSPA_HINT_DEFAULT_MIDDLE)
+#define LADSPA_IS_HINT_DEFAULT_HIGH(x)    (((x) & LADSPA_HINT_DEFAULT_MASK)   \
+                                           == LADSPA_HINT_DEFAULT_HIGH)
+#define LADSPA_IS_HINT_DEFAULT_MAXIMUM(x) (((x) & LADSPA_HINT_DEFAULT_MASK)   \
+                                           == LADSPA_HINT_DEFAULT_MAXIMUM)
+#define LADSPA_IS_HINT_DEFAULT_0(x)       (((x) & LADSPA_HINT_DEFAULT_MASK)   \
+                                           == LADSPA_HINT_DEFAULT_0)
+#define LADSPA_IS_HINT_DEFAULT_1(x)       (((x) & LADSPA_HINT_DEFAULT_MASK)   \
+                                           == LADSPA_HINT_DEFAULT_1)
+#define LADSPA_IS_HINT_DEFAULT_100(x)     (((x) & LADSPA_HINT_DEFAULT_MASK)   \
+                                           == LADSPA_HINT_DEFAULT_100)
+#define LADSPA_IS_HINT_DEFAULT_440(x)     (((x) & LADSPA_HINT_DEFAULT_MASK)   \
+                                            == LADSPA_HINT_DEFAULT_440)
+
+typedef struct _LADSPA_PortRangeHint {
+
+  /* Hints about the port. */
+  LADSPA_PortRangeHintDescriptor HintDescriptor;
+
+  /* Meaningful when hint LADSPA_HINT_BOUNDED_BELOW is active. When
+     LADSPA_HINT_SAMPLE_RATE is also active then this value should be
+     multiplied by the relevant sample rate. */
+  LADSPA_Data LowerBound;
+
+  /* Meaningful when hint LADSPA_HINT_BOUNDED_ABOVE is active. When
+     LADSPA_HINT_SAMPLE_RATE is also active then this value should be
+     multiplied by the relevant sample rate. */
+  LADSPA_Data UpperBound;
+
+} LADSPA_PortRangeHint;
+
+/*****************************************************************************/
+
+/* Plugin Handles: 
+
+   This plugin handle indicates a particular instance of the plugin
+   concerned. It is valid to compare this to NULL (0 for C++) but
+   otherwise the host should not attempt to interpret it. The plugin
+   may use it to reference internal instance data. */
+
+typedef void * LADSPA_Handle;
+
+/*****************************************************************************/
+
+/* Descriptor for a Type of Plugin: 
+
+   This structure is used to describe a plugin type. It provides a
+   number of functions to examine the type, instantiate it, link it to
+   buffers and workspaces and to run it. */
+
+typedef struct _LADSPA_Descriptor { 
+
+  /* This numeric identifier indicates the plugin type
+     uniquely. Plugin programmers may reserve ranges of IDs from a
+     central body to avoid clashes. Hosts may assume that IDs are
+     below 0x1000000. */
+  unsigned long UniqueID;
+
+  /* This identifier can be used as a unique, case-sensitive
+     identifier for the plugin type within the plugin file. Plugin
+     types should be identified by file and label rather than by index
+     or plugin name, which may be changed in new plugin
+     versions. Labels must not contain white-space characters. */
+  const char * Label;
+
+  /* This indicates a number of properties of the plugin. */
+  LADSPA_Properties Properties;
+
+  /* This member points to the null-terminated name of the plugin
+     (e.g. "Sine Oscillator"). */
+  const char * Name;
+
+  /* This member points to the null-terminated string indicating the
+     maker of the plugin. This can be an empty string but not NULL. */
+  const char * Maker;
+
+  /* This member points to the null-terminated string indicating any
+     copyright applying to the plugin. If no Copyright applies the
+     string "None" should be used. */
+  const char * Copyright;
+
+  /* This indicates the number of ports (input AND output) present on
+     the plugin. */
+  unsigned long PortCount;
+
+  /* This member indicates an array of port descriptors. Valid indices
+     vary from 0 to PortCount-1. */
+  const LADSPA_PortDescriptor * PortDescriptors;
+
+  /* This member indicates an array of null-terminated strings
+     describing ports (e.g. "Frequency (Hz)"). Valid indices vary from
+     0 to PortCount-1. */
+  const char * const * PortNames;
+
+  /* This member indicates an array of range hints for each port (see
+     above). Valid indices vary from 0 to PortCount-1. */
+  const LADSPA_PortRangeHint * PortRangeHints;
+
+  /* This may be used by the plugin developer to pass any custom
+     implementation data into an instantiate call. It must not be used
+     or interpreted by the host. It is expected that most plugin
+     writers will not use this facility as LADSPA_Handle should be
+     used to hold instance data. */
+  void * ImplementationData;
+
+  /* This member is a function pointer that instantiates a plugin. A
+     handle is returned indicating the new plugin instance. The
+     instantiation function accepts a sample rate as a parameter. The
+     plugin descriptor from which this instantiate function was found
+     must also be passed. This function must return NULL if
+     instantiation fails. 
+
+     Note that instance initialisation should generally occur in
+     activate() rather than here. */
+  LADSPA_Handle (*instantiate)(const struct _LADSPA_Descriptor * Descriptor,
+                               unsigned long                     SampleRate);
+
+  /* This member is a function pointer that connects a port on an
+     instantiated plugin to a memory location at which a block of data
+     for the port will be read/written. The data location is expected
+     to be an array of LADSPA_Data for audio ports or a single
+     LADSPA_Data value for control ports. Memory issues will be
+     managed by the host. The plugin must read/write the data at these
+     locations every time run() or run_adding() is called and the data
+     present at the time of this connection call should not be
+     considered meaningful.
+
+     connect_port() may be called more than once for a plugin instance
+     to allow the host to change the buffers that the plugin is
+     reading or writing. These calls may be made before or after
+     activate() or deactivate() calls.
+
+     connect_port() must be called at least once for each port before
+     run() or run_adding() is called. When working with blocks of
+     LADSPA_Data the plugin should pay careful attention to the block
+     size passed to the run function as the block allocated may only
+     just be large enough to contain the block of samples.
+
+     Plugin writers should be aware that the host may elect to use the
+     same buffer for more than one port and even use the same buffer
+     for both input and output (see LADSPA_PROPERTY_INPLACE_BROKEN).
+     However, overlapped buffers or use of a single buffer for both
+     audio and control data may result in unexpected behaviour. */
+   void (*connect_port)(LADSPA_Handle Instance,
+                        unsigned long Port,
+                        LADSPA_Data * DataLocation);
+
+  /* This member is a function pointer that initialises a plugin
+     instance and activates it for use. This is separated from
+     instantiate() to aid real-time support and so that hosts can
+     reinitialise a plugin instance by calling deactivate() and then
+     activate(). In this case the plugin instance must reset all state
+     information dependent on the history of the plugin instance
+     except for any data locations provided by connect_port() and any
+     gain set by set_run_adding_gain(). If there is nothing for
+     activate() to do then the plugin writer may provide a NULL rather
+     than an empty function.
+
+     When present, hosts must call this function once before run() (or
+     run_adding()) is called for the first time. This call should be
+     made as close to the run() call as possible and indicates to
+     real-time plugins that they are now live. Plugins should not rely
+     on a prompt call to run() after activate(). activate() may not be
+     called again unless deactivate() is called first. Note that
+     connect_port() may be called before or after a call to
+     activate(). */
+  void (*activate)(LADSPA_Handle Instance);
+
+  /* This method is a function pointer that runs an instance of a
+     plugin for a block. Two parameters are required: the first is a
+     handle to the particular instance to be run and the second
+     indicates the block size (in samples) for which the plugin
+     instance may run.
+
+     Note that if an activate() function exists then it must be called
+     before run() or run_adding(). If deactivate() is called for a
+     plugin instance then the plugin instance may not be reused until
+     activate() has been called again.
+
+     If the plugin has the property LADSPA_PROPERTY_HARD_RT_CAPABLE
+     then there are various things that the plugin should not do
+     within the run() or run_adding() functions (see above). */
+  void (*run)(LADSPA_Handle Instance,
+              unsigned long SampleCount);
+
+  /* This method is a function pointer that runs an instance of a
+     plugin for a block. This has identical behaviour to run() except
+     in the way data is output from the plugin. When run() is used,
+     values are written directly to the memory areas associated with
+     the output ports. However when run_adding() is called, values
+     must be added to the values already present in the memory
+     areas. Furthermore, output values written must be scaled by the
+     current gain set by set_run_adding_gain() (see below) before
+     addition.
+
+     run_adding() is optional. When it is not provided by a plugin,
+     this function pointer must be set to NULL. When it is provided,
+     the function set_run_adding_gain() must be provided also. */
+  void (*run_adding)(LADSPA_Handle Instance,
+                     unsigned long SampleCount);
+
+  /* This method is a function pointer that sets the output gain for
+     use when run_adding() is called (see above). If this function is
+     never called the gain is assumed to default to 1. Gain
+     information should be retained when activate() or deactivate()
+     are called.
+
+     This function should be provided by the plugin if and only if the
+     run_adding() function is provided. When it is absent this
+     function pointer must be set to NULL. */
+  void (*set_run_adding_gain)(LADSPA_Handle Instance,
+                              LADSPA_Data   Gain);
+
+  /* This is the counterpart to activate() (see above). If there is
+     nothing for deactivate() to do then the plugin writer may provide
+     a NULL rather than an empty function.
+
+     Hosts must deactivate all activated units after they have been
+     run() (or run_adding()) for the last time. This call should be
+     made as close to the last run() call as possible and indicates to
+     real-time plugins that they are no longer live. Plugins should
+     not rely on prompt deactivation. Note that connect_port() may be
+     called before or after a call to deactivate().
+
+     Deactivation is not similar to pausing as the plugin instance
+     will be reinitialised when activate() is called to reuse it. */
+  void (*deactivate)(LADSPA_Handle Instance);
+
+  /* Once an instance of a plugin has been finished with it can be
+     deleted using the following function. The instance handle passed
+     ceases to be valid after this call.
+  
+     If activate() was called for a plugin instance then a
+     corresponding call to deactivate() must be made before cleanup()
+     is called. */
+  void (*cleanup)(LADSPA_Handle Instance);
+
+} LADSPA_Descriptor;
+
+/**********************************************************************/
+
+/* Accessing a Plugin: */
+
+/* The exact mechanism by which plugins are loaded is host-dependent,
+   however all most hosts will need to know is the name of shared
+   object file containing the plugin types. To allow multiple hosts to
+   share plugin types, hosts may wish to check for environment
+   variable LADSPA_PATH. If present, this should contain a
+   colon-separated path indicating directories that should be searched
+   (in order) when loading plugin types.
+
+   A plugin programmer must include a function called
+   "ladspa_descriptor" with the following function prototype within
+   the shared object file. This function will have C-style linkage (if
+   you are using C++ this is taken care of by the `extern "C"' clause
+   at the top of the file).
+
+   A host will find the plugin shared object file by one means or
+   another, find the ladspa_descriptor() function, call it, and
+   proceed from there.
+
+   Plugin types are accessed by index (not ID) using values from 0
+   upwards. Out of range indexes must result in this function
+   returning NULL, so the plugin count can be determined by checking
+   for the least index that results in NULL being returned. */
+
+const LADSPA_Descriptor * ladspa_descriptor(unsigned long Index);
+
+/* Datatype corresponding to the ladspa_descriptor() function. */
+typedef const LADSPA_Descriptor * 
+(*LADSPA_Descriptor_Function)(unsigned long Index);
+
+/**********************************************************************/
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* LADSPA_INCLUDED */
+
+/* EOF */

distrho/src/lv2/atom-forge.h

@@ -0,0 +1,619 @@
+/*
+  Copyright 2008-2012 David Robillard <http://drobilla.net>
+
+  Permission to use, copy, modify, and/or distribute this software for any
+  purpose with or without fee is hereby granted, provided that the above
+  copyright notice and this permission notice appear in all copies.
+
+  THIS SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+  WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+  MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+  ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+  WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+  ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+  OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+*/
+
+/**
+   @file forge.h An API for constructing LV2 atoms.
+
+   This file provides an API for constructing Atoms which makes it relatively
+   simple to build nested atoms of arbitrary complexity without requiring
+   dynamic memory allocation.
+
+   The API is based on successively appending the appropriate pieces to build a
+   complete Atom.  The size of containers is automatically updated.  Functions
+   that begin a container return (via their frame argument) a stack frame which
+   must be popped when the container is finished.
+
+   All output is written to a user-provided buffer or sink function.  This
+   makes it popssible to create create atoms on the stack, on the heap, in LV2
+   port buffers, in a ringbuffer, or elsewhere, all using the same API.
+
+   This entire API is realtime safe if used with a buffer or a realtime safe
+   sink, except lv2_atom_forge_init() which is only realtime safe if the URI
+   map function is.
+
+   Note these functions are all static inline, do not take their address.
+
+   This header is non-normative, it is provided for convenience.
+*/
+
+#ifndef LV2_ATOM_FORGE_H
+#define LV2_ATOM_FORGE_H
+
+#include <assert.h>
+
+#include "atom.h"
+#include "atom-util.h"
+#include "urid.h"
+
+#ifdef __cplusplus
+extern "C" {
+#else
+#    include <stdbool.h>
+#endif
+
+/** Handle for LV2_Atom_Forge_Sink. */
+typedef void* LV2_Atom_Forge_Sink_Handle;
+
+/** A reference to a chunk of written output. */
+typedef intptr_t LV2_Atom_Forge_Ref;
+
+/** Sink function for writing output.  See lv2_atom_forge_set_sink(). */
+typedef LV2_Atom_Forge_Ref
+(*LV2_Atom_Forge_Sink)(LV2_Atom_Forge_Sink_Handle handle,
+                       const void*                buf,
+                       uint32_t                   size);
+
+/** Function for resolving a reference.  See lv2_atom_forge_set_sink(). */
+typedef LV2_Atom*
+(*LV2_Atom_Forge_Deref_Func)(LV2_Atom_Forge_Sink_Handle handle,
+                             LV2_Atom_Forge_Ref         ref);
+
+/** A stack frame used for keeping track of nested Atom containers. */
+typedef struct _LV2_Atom_Forge_Frame {
+	struct _LV2_Atom_Forge_Frame* parent;
+	LV2_Atom_Forge_Ref            ref;
+} LV2_Atom_Forge_Frame;
+
+/** A "forge" for creating atoms by appending to a buffer. */
+typedef struct {
+	uint8_t* buf;
+	uint32_t offset;
+	uint32_t size;
+
+	LV2_Atom_Forge_Sink        sink;
+	LV2_Atom_Forge_Deref_Func  deref;
+	LV2_Atom_Forge_Sink_Handle handle;
+
+	LV2_Atom_Forge_Frame* stack;
+
+	LV2_URID Blank;
+	LV2_URID Bool;
+	LV2_URID Chunk;
+	LV2_URID Double;
+	LV2_URID Float;
+	LV2_URID Int;
+	LV2_URID Long;
+	LV2_URID Literal;
+	LV2_URID Path;
+	LV2_URID Property;
+	LV2_URID Resource;
+	LV2_URID Sequence;
+	LV2_URID String;
+	LV2_URID Tuple;
+	LV2_URID URI;
+	LV2_URID URID;
+	LV2_URID Vector;
+} LV2_Atom_Forge;
+
+static inline void
+lv2_atom_forge_set_buffer(LV2_Atom_Forge* forge, uint8_t* buf, size_t size);
+
+/**
+   Initialise @p forge.
+
+   URIs will be mapped using @p map and stored, a reference to @p map itself is
+   not held.
+*/
+static inline void
+lv2_atom_forge_init(LV2_Atom_Forge* forge, LV2_URID_Map* map)
+{
+	lv2_atom_forge_set_buffer(forge, NULL, 0);
+	forge->Blank    = map->map(map->handle, LV2_ATOM__Blank);
+	forge->Bool     = map->map(map->handle, LV2_ATOM__Bool);
+	forge->Chunk    = map->map(map->handle, LV2_ATOM__Chunk);
+	forge->Double   = map->map(map->handle, LV2_ATOM__Double);
+	forge->Float    = map->map(map->handle, LV2_ATOM__Float);
+	forge->Int      = map->map(map->handle, LV2_ATOM__Int);
+	forge->Long     = map->map(map->handle, LV2_ATOM__Long);
+	forge->Literal  = map->map(map->handle, LV2_ATOM__Literal);
+	forge->Path     = map->map(map->handle, LV2_ATOM__Path);
+	forge->Property = map->map(map->handle, LV2_ATOM__Property);
+	forge->Resource = map->map(map->handle, LV2_ATOM__Resource);
+	forge->Sequence = map->map(map->handle, LV2_ATOM__Sequence);
+	forge->String   = map->map(map->handle, LV2_ATOM__String);
+	forge->Tuple    = map->map(map->handle, LV2_ATOM__Tuple);
+	forge->URI      = map->map(map->handle, LV2_ATOM__URI);
+	forge->URID     = map->map(map->handle, LV2_ATOM__URID);
+	forge->Vector   = map->map(map->handle, LV2_ATOM__Vector);
+}
+
+static inline LV2_Atom*
+lv2_atom_forge_deref(LV2_Atom_Forge* forge, LV2_Atom_Forge_Ref ref)
+{
+	if (forge->buf) {
+		return (LV2_Atom*)ref;
+	} else {
+		return forge->deref(forge->handle, ref);
+	}
+}
+
+/**
+   @name Object Stack
+   @{
+*/
+
+/**
+   Push a stack frame.
+   This is done automatically by container functions (which take a stack frame
+   pointer), but may be called by the user to push the top level container when
+   writing to an existing Atom.
+*/
+static inline LV2_Atom_Forge_Ref
+lv2_atom_forge_push(LV2_Atom_Forge*       forge,
+                    LV2_Atom_Forge_Frame* frame,
+                    LV2_Atom_Forge_Ref    ref)
+{
+	frame->parent = forge->stack;
+	frame->ref    = ref;
+	forge->stack  = frame;
+	return ref;
+}
+
+/** Pop a stack frame.  This must be called when a container is finished. */
+static inline void
+lv2_atom_forge_pop(LV2_Atom_Forge* forge, LV2_Atom_Forge_Frame* frame)
+{
+	assert(frame == forge->stack);
+	forge->stack = frame->parent;
+}
+
+/** Return true iff the top of the stack has the given type. */
+static inline bool
+lv2_atom_forge_top_is(LV2_Atom_Forge* forge, uint32_t type)
+{
+	return forge->stack &&
+		lv2_atom_forge_deref(forge, forge->stack->ref)->type == type;
+}
+
+/**
+   @}
+   @name Output Configuration
+   @{
+*/
+
+/** Set the output buffer where @p forge will write atoms. */
+static inline void
+lv2_atom_forge_set_buffer(LV2_Atom_Forge* forge, uint8_t* buf, size_t size)
+{
+	forge->buf    = buf;
+	forge->size   = size;
+	forge->offset = 0;
+	forge->deref  = NULL;
+	forge->sink   = NULL;
+	forge->handle = NULL;
+	forge->stack  = NULL;
+}
+
+/**
+   Set the sink function where @p forge will write output.
+
+   The return value of forge functions is an LV2_Atom_Forge_Ref which is an
+   integer type safe to use as a pointer but is otherwise opaque.  The sink
+   function must return a ref that can be dereferenced to access as least
+   sizeof(LV2_Atom) bytes of the written data, so sizes can be updated.  For
+   ringbuffers, this should be possible as long as the size of the buffer is a
+   multiple of sizeof(LV2_Atom), since atoms are always aligned.
+
+   Note that 0 is an invalid reference, so if you are using a buffer offset be
+   sure to offset it such that 0 is never a valid reference.  You will get
+   confusing errors otherwise.
+*/
+static inline void
+lv2_atom_forge_set_sink(LV2_Atom_Forge*            forge,
+                        LV2_Atom_Forge_Sink        sink,
+                        LV2_Atom_Forge_Deref_Func  deref,
+                        LV2_Atom_Forge_Sink_Handle handle)
+{
+	forge->buf    = NULL;
+	forge->size   = forge->offset = 0;
+	forge->deref  = deref;
+	forge->sink   = sink;
+	forge->handle = handle;
+	forge->stack  = NULL;
+}
+
+/**
+   @}
+   @name Low Level Output
+   @{
+*/
+
+/**
+   Write raw output.  This is used internally, but is also useful for writing
+   atom types not explicitly supported by the forge API.  Note the caller is
+   responsible for ensuring the output is approriately padded.
+*/
+static inline LV2_Atom_Forge_Ref
+lv2_atom_forge_raw(LV2_Atom_Forge* forge, const void* data, uint32_t size)
+{
+	LV2_Atom_Forge_Ref out = 0;
+	if (forge->sink) {
+		out = forge->sink(forge->handle, data, size);
+	} else {
+		out = (LV2_Atom_Forge_Ref)forge->buf + forge->offset;
+		uint8_t* mem = forge->buf + forge->offset;
+		if (forge->offset + size > forge->size) {
+			return 0;
+		}
+		forge->offset += size;
+		memcpy(mem, data, size);
+	}
+	for (LV2_Atom_Forge_Frame* f = forge->stack; f; f = f->parent) {
+		lv2_atom_forge_deref(forge, f->ref)->size += size;
+	}
+	return out;
+}
+
+/** Pad output accordingly so next write is 64-bit aligned. */
+static inline void
+lv2_atom_forge_pad(LV2_Atom_Forge* forge, uint32_t written)
+{
+	const uint64_t pad      = 0;
+	const uint32_t pad_size = lv2_atom_pad_size(written) - written;
+	lv2_atom_forge_raw(forge, &pad, pad_size);
+}
+
+/** Write raw output, padding to 64-bits as necessary. */
+static inline LV2_Atom_Forge_Ref
+lv2_atom_forge_write(LV2_Atom_Forge* forge, const void* data, uint32_t size)
+{
+	LV2_Atom_Forge_Ref out = lv2_atom_forge_raw(forge, data, size);
+	if (out) {
+		lv2_atom_forge_pad(forge, size);
+	}
+	return out;
+}
+
+/** Write a null-terminated string body. */
+static inline LV2_Atom_Forge_Ref
+lv2_atom_forge_string_body(LV2_Atom_Forge* forge,
+                           const char*     str,
+                           uint32_t        len)
+{
+	LV2_Atom_Forge_Ref out = lv2_atom_forge_raw(forge, str, len);
+	if (out && (out = lv2_atom_forge_raw(forge, "", 1))) {
+		lv2_atom_forge_pad(forge, len + 1);
+	}
+	return out;
+}
+
+/**
+   @}
+   @name Atom Output
+   @{
+*/
+
+/** Write an atom:Atom header. */
+static inline LV2_Atom_Forge_Ref
+lv2_atom_forge_atom(LV2_Atom_Forge* forge, uint32_t size, uint32_t type)
+{
+	const LV2_Atom a = { size, type };
+	return lv2_atom_forge_raw(forge, &a, sizeof(a));
+}
+
+/** Write a primitive (fixed-size) atom. */
+static inline LV2_Atom_Forge_Ref
+lv2_atom_forge_primitive(LV2_Atom_Forge* forge, const LV2_Atom* a)
+{
+	if (lv2_atom_forge_top_is(forge, forge->Vector)) {
+		return lv2_atom_forge_raw(forge, LV2_ATOM_BODY_CONST(a), a->size);
+	} else {
+		return lv2_atom_forge_write(forge, a, sizeof(LV2_Atom) + a->size);
+	}
+}
+
+/** Write an atom:Int. */
+static inline LV2_Atom_Forge_Ref
+lv2_atom_forge_int(LV2_Atom_Forge* forge, int32_t val)
+{
+	const LV2_Atom_Int a = { { sizeof(val), forge->Int }, val };
+	return lv2_atom_forge_primitive(forge, &a.atom);
+}
+
+/** Write an atom:Long. */
+static inline LV2_Atom_Forge_Ref
+lv2_atom_forge_long(LV2_Atom_Forge* forge, int64_t val)
+{
+	const LV2_Atom_Long a = { { sizeof(val), forge->Long }, val };
+	return lv2_atom_forge_primitive(forge, &a.atom);
+}
+
+/** Write an atom:Float. */
+static inline LV2_Atom_Forge_Ref
+lv2_atom_forge_float(LV2_Atom_Forge* forge, float val)
+{
+	const LV2_Atom_Float a = { { sizeof(val), forge->Float }, val };
+	return lv2_atom_forge_primitive(forge, &a.atom);
+}
+
+/** Write an atom:Double. */
+static inline LV2_Atom_Forge_Ref
+lv2_atom_forge_double(LV2_Atom_Forge* forge, double val)
+{
+	const LV2_Atom_Double a = { { sizeof(val), forge->Double }, val };
+	return lv2_atom_forge_primitive(forge, &a.atom);
+}
+
+/** Write an atom:Bool. */
+static inline LV2_Atom_Forge_Ref
+lv2_atom_forge_bool(LV2_Atom_Forge* forge, bool val)
+{
+	const LV2_Atom_Bool a = { { sizeof(int32_t), forge->Bool }, val ? 1 : 0 };
+	return lv2_atom_forge_primitive(forge, &a.atom);
+}
+
+/** Write an atom:URID. */
+static inline LV2_Atom_Forge_Ref
+lv2_atom_forge_urid(LV2_Atom_Forge* forge, LV2_URID id)
+{
+	const LV2_Atom_URID a = { { sizeof(id), forge->URID }, id };
+	return lv2_atom_forge_primitive(forge, &a.atom);
+}
+
+/** Write an atom compatible with atom:String.  Used internally. */
+static inline LV2_Atom_Forge_Ref
+lv2_atom_forge_typed_string(LV2_Atom_Forge* forge,
+                            uint32_t        type,
+                            const char*     str,
+                            uint32_t        len)
+{
+	const LV2_Atom_String a   = { { len + 1, type } };
+	LV2_Atom_Forge_Ref    out = lv2_atom_forge_raw(forge, &a, sizeof(a));
+	if (out) {
+		if (!lv2_atom_forge_string_body(forge, str, len)) {
+			LV2_Atom* atom = lv2_atom_forge_deref(forge, out);
+			atom->size = atom->type = 0;
+			out = 0;
+		}
+	}
+	return out;
+}
+
+/** Write an atom:String.  Note that @p str need not be NULL terminated. */
+static inline LV2_Atom_Forge_Ref
+lv2_atom_forge_string(LV2_Atom_Forge* forge, const char* str, uint32_t len)
+{
+	return lv2_atom_forge_typed_string(forge, forge->String, str, len);
+}
+
+/**
+   Write an atom:URI.  Note that @p uri need not be NULL terminated.
+   This does not map the URI, but writes the complete URI string.  To write
+   a mapped URI, use lv2_atom_forge_urid().
+*/
+static inline LV2_Atom_Forge_Ref
+lv2_atom_forge_uri(LV2_Atom_Forge* forge, const char* uri, uint32_t len)
+{
+	return lv2_atom_forge_typed_string(forge, forge->URI, uri, len);
+}
+
+/** Write an atom:Path.  Note that @p path need not be NULL terminated. */
+static inline LV2_Atom_Forge_Ref
+lv2_atom_forge_path(LV2_Atom_Forge* forge, const char* path, uint32_t len)
+{
+	return lv2_atom_forge_typed_string(forge, forge->Path, path, len);
+}
+
+/** Write an atom:Literal. */
+static inline LV2_Atom_Forge_Ref
+lv2_atom_forge_literal(LV2_Atom_Forge* forge,
+                       const char*     str,
+                       uint32_t        len,
+                       uint32_t        datatype,
+                       uint32_t        lang)
+{
+	const LV2_Atom_Literal a = {
+		{ (uint32_t)(sizeof(LV2_Atom_Literal) - sizeof(LV2_Atom) + len + 1),
+		  forge->Literal },
+		{ datatype,
+		  lang }
+	};
+	LV2_Atom_Forge_Ref out = lv2_atom_forge_raw(forge, &a, sizeof(a));
+	if (out) {
+		if (!lv2_atom_forge_string_body(forge, str, len)) {
+			LV2_Atom* atom = lv2_atom_forge_deref(forge, out);
+			atom->size = atom->type = 0;
+			out = 0;
+		}
+	}
+	return out;
+}
+
+/** Start an atom:Vector. */
+static inline LV2_Atom_Forge_Ref
+lv2_atom_forge_vector_head(LV2_Atom_Forge*       forge,
+                           LV2_Atom_Forge_Frame* frame,
+                           uint32_t              child_size,
+                           uint32_t              child_type)
+{
+	const LV2_Atom_Vector a = {
+		{ sizeof(LV2_Atom_Vector_Body), forge->Vector },
+		{ child_size, child_type }
+	};
+	return lv2_atom_forge_push(
+		forge, frame, lv2_atom_forge_write(forge, &a, sizeof(a)));
+}
+
+/** Write a complete atom:Vector. */
+static inline LV2_Atom_Forge_Ref
+lv2_atom_forge_vector(LV2_Atom_Forge* forge,
+                      uint32_t        child_size,
+                      uint32_t        child_type,
+                      uint32_t        n_elems,
+                      const void*     elems)
+{
+	const LV2_Atom_Vector a = {
+		{ (uint32_t)(sizeof(LV2_Atom_Vector_Body) + n_elems * child_size),
+		  forge->Vector },
+		{ child_size, child_type }
+	};
+	LV2_Atom_Forge_Ref out = lv2_atom_forge_write(forge, &a, sizeof(a));
+	if (out) {
+		lv2_atom_forge_write(forge, elems, child_size * n_elems);
+	}
+	return out;
+}
+
+/**
+   Write the header of an atom:Tuple.
+
+   The passed frame will be initialised to represent this tuple.  To complete
+   the tuple, write a sequence of atoms, then pop the frame with
+   lv2_atom_forge_pop().
+
+   For example:
+   @code
+   // Write tuple (1, 2.0)
+   LV2_Atom_Forge_Frame frame;
+   LV2_Atom* tup = (LV2_Atom*)lv2_atom_forge_tuple(forge, &frame);
+   lv2_atom_forge_int32(forge, 1);
+   lv2_atom_forge_float(forge, 2.0);
+   lv2_atom_forge_pop(forge, &frame);
+   @endcode
+*/
+static inline LV2_Atom_Forge_Ref
+lv2_atom_forge_tuple(LV2_Atom_Forge* forge, LV2_Atom_Forge_Frame* frame)
+{
+	const LV2_Atom_Tuple a = { { 0, forge->Tuple } };
+	return lv2_atom_forge_push(
+		forge, frame, lv2_atom_forge_write(forge, &a, sizeof(a)));
+}
+
+/**
+   Write the header of an atom:Resource.
+
+   The passed frame will be initialised to represent this object.  To complete
+   the object, write a sequence of properties, then pop the frame with
+   lv2_atom_forge_pop().
+
+   For example:
+   @code
+   LV2_URID eg_Cat  = map("http://example.org/Cat");
+   LV2_URID eg_name = map("http://example.org/name");
+
+   // Write object header
+   LV2_Atom_Forge_Frame frame;
+   lv2_atom_forge_resource(forge, &frame, 1, eg_Cat);
+
+   // Write property: eg:name = "Hobbes"
+   lv2_atom_forge_property_head(forge, eg_name, 0);
+   lv2_atom_forge_string(forge, "Hobbes", strlen("Hobbes"));
+
+   // Finish object
+   lv2_atom_forge_pop(forge, &frame);
+   @endcode
+*/
+static inline LV2_Atom_Forge_Ref
+lv2_atom_forge_resource(LV2_Atom_Forge*       forge,
+                        LV2_Atom_Forge_Frame* frame,
+                        LV2_URID              id,
+                        LV2_URID              otype)
+{
+	const LV2_Atom_Object a = {
+		{ sizeof(LV2_Atom_Object) - sizeof(LV2_Atom), forge->Resource },
+		{ id, otype }
+	};
+	LV2_Atom_Forge_Ref out = lv2_atom_forge_write(forge, &a, sizeof(a));
+	return lv2_atom_forge_push(forge, frame, out);
+}
+
+/**
+   The same as lv2_atom_forge_resource(), but for object:Blank.
+*/
+static inline LV2_Atom_Forge_Ref
+lv2_atom_forge_blank(LV2_Atom_Forge*       forge,
+                     LV2_Atom_Forge_Frame* frame,
+                     uint32_t              id,
+                     LV2_URID              otype)
+{
+	const LV2_Atom_Object a = {
+		{ sizeof(LV2_Atom_Object) - sizeof(LV2_Atom), forge->Blank },
+		{ id, otype }
+	};
+	LV2_Atom_Forge_Ref out = lv2_atom_forge_write(forge, &a, sizeof(a));
+	return lv2_atom_forge_push(forge, frame, out);
+}
+
+/**
+   Write the header for a property body (likely in an Object).
+   See lv2_atom_forge_resource() documentation for an example.
+*/
+static inline LV2_Atom_Forge_Ref
+lv2_atom_forge_property_head(LV2_Atom_Forge* forge,
+                             LV2_URID        key,
+                             LV2_URID        context)
+{
+	const LV2_Atom_Property_Body a = { key, context, { 0, 0 } };
+	return lv2_atom_forge_write(forge, &a, 2 * sizeof(uint32_t));
+}
+
+/**
+   Write the header for a Sequence.
+*/
+static inline LV2_Atom_Forge_Ref
+lv2_atom_forge_sequence_head(LV2_Atom_Forge*       forge,
+                             LV2_Atom_Forge_Frame* frame,
+                             uint32_t              unit)
+{
+	const LV2_Atom_Sequence a = {
+		{ sizeof(LV2_Atom_Sequence) - sizeof(LV2_Atom), forge->Sequence },
+		{ unit, 0 }
+	};
+	LV2_Atom_Forge_Ref out = lv2_atom_forge_write(forge, &a, sizeof(a));
+	return lv2_atom_forge_push(forge, frame, out);
+}
+
+/**
+   Write the time stamp header of an Event (in a Sequence) in audio frames.
+   After this, call the appropriate forge method(s) to write the body.  Note
+   the returned reference is to an LV2_Event which is NOT an Atom.
+*/
+static inline LV2_Atom_Forge_Ref
+lv2_atom_forge_frame_time(LV2_Atom_Forge* forge, int64_t frames)
+{
+	return lv2_atom_forge_write(forge, &frames, sizeof(frames));
+}
+
+/**
+   Write the time stamp header of an Event (in a Sequence) in beats.  After
+   this, call the appropriate forge method(s) to write the body.  Note the
+   returned reference is to an LV2_Event which is NOT an Atom.
+*/
+static inline LV2_Atom_Forge_Ref
+lv2_atom_forge_beat_time(LV2_Atom_Forge* forge, double beats)
+{
+	return lv2_atom_forge_write(forge, &beats, sizeof(beats));
+}
+
+/**
+   @}
+*/
+
+#ifdef __cplusplus
+}  /* extern "C" */
+#endif
+
+#endif  /* LV2_ATOM_FORGE_H */

distrho/src/lv2/atom-helpers.h

@@ -0,0 +1,255 @@
+// lv2_atom_helpers.h
+//
+/****************************************************************************
+   Copyright (C) 2005-2012, rncbc aka Rui Nuno Capela. All rights reserved.
+
+   This program is free software; you can redistribute it and/or
+   modify it under the terms of the GNU General Public License
+   as published by the Free Software Foundation; either version 2
+   of the License, or (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along
+   with this program; if not, write to the Free Software Foundation, Inc.,
+   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+*****************************************************************************/
+
+/*  Helper functions for LV2 atom:Sequence event buffer.
+ *
+ *  tentatively adapted from:
+ *
+ *  - lv2_evbuf.h,c - An abstract/opaque LV2 event buffer implementation.
+ *
+ *  - event-helpers.h - Helper functions for the LV2 Event extension.
+ *    <http://lv2plug.in/ns/ext/event>
+ *
+ *    Copyright 2008-2012 David Robillard <http://drobilla.net>
+ */
+
+#ifndef LV2_ATOM_HELPERS_H
+#define LV2_ATOM_HELPERS_H
+
+#include <stdint.h>
+#include <stdbool.h>
+#include <string.h>
+#include <stdlib.h>
+#include <assert.h>
+
+#include "atom.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+// An abstract/opaque LV2 atom:Sequence buffer.
+//
+typedef
+struct _LV2_Atom_Buffer
+{
+	uint32_t capacity;
+	uint32_t chunk_type;
+	uint32_t sequence_type;
+	LV2_Atom_Sequence atoms;
+
+} LV2_Atom_Buffer;
+
+
+// Pad a size to 64 bits (for LV2 atom:Sequence event sizes).
+//
+static inline
+uint32_t lv2_atom_buffer_pad_size ( uint32_t size )
+{
+	return (size + 7) & (~7);
+}
+
+
+// Clear and initialize an existing LV2 atom:Sequenece buffer.
+//
+static inline
+void lv2_atom_buffer_reset ( LV2_Atom_Buffer *buf, bool input )
+{
+	if (input)
+		buf->atoms.atom.size = sizeof(LV2_Atom_Sequence_Body);
+	else
+		buf->atoms.atom.size = buf->capacity;
+
+	buf->atoms.atom.type = buf->sequence_type;
+	buf->atoms.body.unit = 0;
+	buf->atoms.body.pad  = 0;
+}
+
+
+// Allocate a new, empty LV2 atom:Sequence buffer.
+//
+static inline
+LV2_Atom_Buffer *lv2_atom_buffer_new (
+	uint32_t capacity, uint32_t sequence_type, bool input )
+{
+	LV2_Atom_Buffer *buf = (LV2_Atom_Buffer *)
+		malloc(sizeof(LV2_Atom_Buffer) + sizeof(LV2_Atom_Sequence) + capacity);
+
+	buf->capacity = capacity;
+	buf->sequence_type = sequence_type;
+
+	lv2_atom_buffer_reset(buf, input);
+
+	return buf;
+}
+
+
+// Free an LV2 atom:Sequenece buffer allocated with lv2_atome_buffer_new.
+//
+static inline
+void lv2_atom_buffer_free ( LV2_Atom_Buffer *buf )
+{
+	free(buf);
+}
+
+
+// Return the total padded size of events stored in a LV2 atom:Sequence buffer.
+//
+static inline
+uint32_t lv2_atom_buffer_get_size ( LV2_Atom_Buffer *buf )
+{
+	return buf->atoms.atom.size - sizeof(LV2_Atom_Sequence_Body);
+}
+
+
+// Return the actual LV2 atom:Sequence implementation.
+//
+static inline
+LV2_Atom_Sequence *lv2_atom_buffer_get_sequence ( LV2_Atom_Buffer *buf )
+{
+	return &buf->atoms;
+}
+
+
+// An iterator over an atom:Sequence buffer.
+//
+typedef
+struct _LV2_Atom_Buffer_Iterator
+{
+	LV2_Atom_Buffer *buf;
+	uint32_t offset;
+
+} LV2_Atom_Buffer_Iterator;
+
+
+// Reset an iterator to point to the start of an LV2 atom:Sequence buffer.
+//
+static inline
+bool lv2_atom_buffer_begin (
+	LV2_Atom_Buffer_Iterator *iter, LV2_Atom_Buffer *buf )
+{
+	iter->buf = buf;
+	iter->offset = 0;
+
+	return (buf->atoms.atom.size > 0);
+}
+
+
+// Reset an iterator to point to the end of an LV2 atom:Sequence buffer.
+//
+static inline
+bool lv2_atom_buffer_end (
+	LV2_Atom_Buffer_Iterator *iter, LV2_Atom_Buffer *buf )
+{
+	iter->buf = buf;
+	iter->offset = lv2_atom_buffer_pad_size(lv2_atom_buffer_get_size(buf));
+
+	return (iter->offset < buf->capacity - sizeof(LV2_Atom_Event));
+}
+
+
+// Check if a LV2 atom:Sequenece buffer iterator is valid.
+//
+static inline
+bool lv2_atom_buffer_is_valid ( LV2_Atom_Buffer_Iterator *iter )
+{
+	return iter->offset < lv2_atom_buffer_get_size(iter->buf);
+}
+
+
+// Advance a LV2 atom:Sequenece buffer iterator forward one event.
+//
+static inline
+bool lv2_atom_buffer_increment ( LV2_Atom_Buffer_Iterator *iter )
+{
+	if (!lv2_atom_buffer_is_valid(iter))
+		return false;
+
+	LV2_Atom_Buffer *buf = iter->buf;
+	LV2_Atom_Sequence *atoms = &buf->atoms;
+	uint32_t size = ((LV2_Atom_Event *) ((char *)
+		LV2_ATOM_CONTENTS(LV2_Atom_Sequence, atoms) + iter->offset))->body.size;
+	iter->offset += lv2_atom_buffer_pad_size(sizeof(LV2_Atom_Event) + size);
+
+	return true;
+}
+
+
+// Get the event currently pointed at a LV2 atom:Sequence buffer iterator.
+//
+static inline
+LV2_Atom_Event *lv2_atom_buffer_get (
+	LV2_Atom_Buffer_Iterator *iter, uint8_t **data )
+{
+	if (!lv2_atom_buffer_is_valid(iter))
+		return NULL;
+
+	LV2_Atom_Buffer *buf = iter->buf;
+	LV2_Atom_Sequence *atoms = &buf->atoms;
+	LV2_Atom_Event *ev = (LV2_Atom_Event *) ((char *)
+		LV2_ATOM_CONTENTS(LV2_Atom_Sequence, atoms) + iter->offset);
+
+	*data = (uint8_t *) LV2_ATOM_BODY(&ev->body);
+
+	return ev;
+}
+
+
+// Write an event at a LV2 atom:Sequence buffer iterator.
+
+static inline
+bool lv2_atom_buffer_write (
+	LV2_Atom_Buffer_Iterator *iter,
+	uint32_t frames,
+	uint32_t /*subframes*/,
+	uint32_t type,
+	uint32_t size,
+	const uint8_t *data )
+{
+	LV2_Atom_Buffer *buf = iter->buf;
+	LV2_Atom_Sequence *atoms = &buf->atoms;
+	if  (buf->capacity - sizeof(LV2_Atom) - atoms->atom.size
+		< sizeof(LV2_Atom_Event) + size)
+		return false;
+
+	LV2_Atom_Event *ev = (LV2_Atom_Event*) ((char *)
+		LV2_ATOM_CONTENTS(LV2_Atom_Sequence, atoms) + iter->offset);
+
+	ev->time.frames = frames;
+	ev->body.type = type;
+	ev->body.size = size;
+
+	memcpy(LV2_ATOM_BODY(&ev->body), data, size);
+
+	size = lv2_atom_buffer_pad_size(sizeof(LV2_Atom_Event) + size);
+	atoms->atom.size += size;
+	iter->offset += size;
+
+	return true;
+}
+
+#ifdef __cplusplus
+}  /* extern "C" */
+#endif
+
+#endif	// LV2_ATOM_HELPERS_H
+
+// end of lv2_atom_helpers.h

distrho/src/lv2/atom-util.h

@@ -0,0 +1,401 @@
+/*
+  Copyright 2008-2012 David Robillard <http://drobilla.net>
+
+  Permission to use, copy, modify, and/or distribute this software for any
+  purpose with or without fee is hereby granted, provided that the above
+  copyright notice and this permission notice appear in all copies.
+
+  THIS SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+  WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+  MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+  ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+  WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+  ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+  OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+*/
+
+/**
+   @file util.h Helper functions for the LV2 Atom extension.
+
+   Note these functions are all static inline, do not take their address.
+
+   This header is non-normative, it is provided for convenience.
+*/
+
+#ifndef LV2_ATOM_UTIL_H
+#define LV2_ATOM_UTIL_H
+
+#include <stdarg.h>
+#include <stdint.h>
+#include <string.h>
+
+#include "atom.h"
+
+#ifdef __cplusplus
+extern "C" {
+#else
+#    include <stdbool.h>
+#endif
+
+/** Pad a size to 64 bits. */
+static inline uint32_t
+lv2_atom_pad_size(uint32_t size)
+{
+	return (size + 7) & (~7);
+}
+
+/** Return the total size of @p atom, including the header. */
+static inline uint32_t
+lv2_atom_total_size(const LV2_Atom* atom)
+{
+	return sizeof(LV2_Atom) + atom->size;
+}
+
+/** Return true iff @p atom is null. */
+static inline bool
+lv2_atom_is_null(const LV2_Atom* atom)
+{
+	return !atom || (atom->type == 0 && atom->size == 0);
+}
+
+/** Return true iff @p a is equal to @p b. */
+static inline bool
+lv2_atom_equals(const LV2_Atom* a, const LV2_Atom* b)
+{
+	return (a == b) || ((a->type == b->type) &&
+	                    (a->size == b->size) &&
+	                    !memcmp(a + 1, b + 1, a->size));
+}
+
+/**
+   @name Sequence Iterator
+   @{
+*/
+
+/** Get an iterator pointing to the first event in a Sequence body. */
+static inline const LV2_Atom_Event*
+lv2_atom_sequence_begin(const LV2_Atom_Sequence_Body* body)
+{
+	return (const LV2_Atom_Event*)(body + 1);
+}
+
+/** Get an iterator pointing to the end of a Sequence body. */
+static inline const LV2_Atom_Event*
+lv2_atom_sequence_end(const LV2_Atom_Sequence_Body* body, uint32_t size)
+{
+	return (const LV2_Atom_Event*)((const uint8_t*)body + lv2_atom_pad_size(size));
+}
+
+/** Return true iff @p i has reached the end of @p body. */
+static inline bool
+lv2_atom_sequence_is_end(const LV2_Atom_Sequence_Body* body,
+                         uint32_t                      size,
+                         const LV2_Atom_Event*         i)
+{
+	return (const uint8_t*)i >= ((const uint8_t*)body + size);
+}
+
+/** Return an iterator to the element following @p i. */
+static inline const LV2_Atom_Event*
+lv2_atom_sequence_next(const LV2_Atom_Event* i)
+{
+	if (!i) return NULL;
+	return (const LV2_Atom_Event*)((const uint8_t*)i
+	                               + sizeof(LV2_Atom_Event)
+	                               + lv2_atom_pad_size(i->body.size));
+}
+
+/**
+   A macro for iterating over all events in a Sequence.
+   @param seq  The sequence to iterate over
+   @param iter The name of the iterator
+
+   This macro is used similarly to a for loop (which it expands to), e.g.:
+   @code
+   LV2_ATOM_SEQUENCE_FOREACH(sequence, ev) {
+       // Do something with ev (an LV2_Atom_Event*) here...
+   }
+   @endcode
+*/
+#define LV2_ATOM_SEQUENCE_FOREACH(seq, iter) \
+	for (const LV2_Atom_Event* (iter) = lv2_atom_sequence_begin(&(seq)->body); \
+	     !lv2_atom_sequence_is_end(&(seq)->body, (seq)->atom.size, (iter)); \
+	     (iter) = lv2_atom_sequence_next(iter))
+
+/** Like LV2_ATOM_SEQUENCE_FOREACH but for a headerless sequence body. */
+#define LV2_ATOM_SEQUENCE_BODY_FOREACH(body, size, iter) \
+	for (const LV2_Atom_Event* (iter) = lv2_atom_sequence_begin(body); \
+	     !lv2_atom_sequence_is_end(body, size, (iter)); \
+	     (iter) = lv2_atom_sequence_next(iter))
+
+/**
+   @}
+   @name Tuple Iterator
+   @{
+*/
+
+/** Get an iterator pointing to the first element in @p tup. */
+static inline const LV2_Atom*
+lv2_atom_tuple_begin(const LV2_Atom_Tuple* tup)
+{
+	return (const LV2_Atom*)(LV2_ATOM_BODY_CONST(tup));
+}
+
+/** Return true iff @p i has reached the end of @p body. */
+static inline bool
+lv2_atom_tuple_is_end(const void* body, uint32_t size, LV2_Atom* i)
+{
+	return (const uint8_t*)i >= ((const uint8_t*)body + size);
+}
+
+/** Return an iterator to the element following @p i. */
+static inline const LV2_Atom*
+lv2_atom_tuple_next(const LV2_Atom* i)
+{
+	return (const LV2_Atom*)(
+		(const uint8_t*)i + sizeof(LV2_Atom) + lv2_atom_pad_size(i->size));
+}
+
+/**
+   A macro for iterating over all properties of a Tuple.
+   @param tuple The tuple to iterate over
+   @param iter The name of the iterator
+
+   This macro is used similarly to a for loop (which it expands to), e.g.:
+   @code
+   LV2_ATOMO_TUPLE_FOREACH(tuple, elem) {
+       // Do something with elem (an LV2_Atom*) here...
+   }
+   @endcode
+*/
+#define LV2_ATOM_TUPLE_FOREACH(tuple, iter) \
+	for (LV2_Atom* (iter) = lv2_atom_tuple_begin(tuple); \
+	     !lv2_atom_tuple_is_end(LV2_ATOM_BODY(tuple), (tuple)->size, (iter)); \
+	     (iter) = lv2_atom_tuple_next(iter))
+
+/** Like LV2_ATOM_TUPLE_FOREACH but for a headerless tuple body. */
+#define LV2_ATOM_TUPLE_BODY_FOREACH(body, size, iter) \
+	for (LV2_Atom* (iter) = (LV2_Atom*)body; \
+	     !lv2_atom_tuple_is_end(body, size, (iter)); \
+	     (iter) = lv2_atom_tuple_next(iter))
+
+/**
+   @}
+   @name Object Iterator
+   @{
+*/
+
+/** Return a pointer to the first property in @p body. */
+static inline const LV2_Atom_Property_Body*
+lv2_atom_object_begin(const LV2_Atom_Object_Body* body)
+{
+	return (const LV2_Atom_Property_Body*)(body + 1);
+}
+
+/** Return true iff @p i has reached the end of @p obj. */
+static inline bool
+lv2_atom_object_is_end(const LV2_Atom_Object_Body*   body,
+                       uint32_t                      size,
+                       const LV2_Atom_Property_Body* i)
+{
+	return (const uint8_t*)i >= ((const uint8_t*)body + size);
+}
+
+/** Return an iterator to the property following @p i. */
+static inline const LV2_Atom_Property_Body*
+lv2_atom_object_next(const LV2_Atom_Property_Body* i)
+{
+	const LV2_Atom* const value = (const LV2_Atom*)(
+		(const uint8_t*)i + 2 * sizeof(uint32_t));
+	return (const LV2_Atom_Property_Body*)(
+		(const uint8_t*)i + lv2_atom_pad_size(sizeof(LV2_Atom_Property_Body)
+		                                      + value->size));
+}
+
+/**
+   A macro for iterating over all properties of an Object.
+   @param obj The object to iterate over
+   @param iter The name of the iterator
+
+   This macro is used similarly to a for loop (which it expands to), e.g.:
+   @code
+   LV2_ATOM_OBJECT_FOREACH(object, i) {
+       // Do something with prop (an LV2_Atom_Property_Body*) here...
+   }
+   @endcode
+*/
+#define LV2_ATOM_OBJECT_FOREACH(obj, iter) \
+	for (const LV2_Atom_Property_Body* (iter) = lv2_atom_object_begin(&(obj)->body); \
+	     !lv2_atom_object_is_end(&(obj)->body, (obj)->atom.size, (iter)); \
+	     (iter) = lv2_atom_object_next(iter))
+
+/** Like LV2_ATOM_OBJECT_FOREACH but for a headerless object body. */
+#define LV2_ATOM_OBJECT_BODY_FOREACH(body, size, iter) \
+	for (const LV2_Atom_Property_Body* (iter) = lv2_atom_object_begin(body); \
+	     !lv2_atom_object_is_end(body, size, (iter)); \
+	     (iter) = lv2_atom_object_next(iter))
+
+/**
+   @}
+   @name Object Query
+   @{
+*/
+
+/** A single entry in an Object query. */
+typedef struct {
+	uint32_t         key;    /**< Key to query (input set by user) */
+	const LV2_Atom** value;  /**< Found value (output set by query function) */
+} LV2_Atom_Object_Query;
+
+static const LV2_Atom_Object_Query LV2_ATOM_OBJECT_QUERY_END = { 0, NULL };
+
+/**
+   Get an object's values for various keys.
+
+   The value pointer of each item in @p query will be set to the location of
+   the corresponding value in @p object.  Every value pointer in @p query MUST
+   be initialised to NULL.  This function reads @p object in a single linear
+   sweep.  By allocating @p query on the stack, objects can be "queried"
+   quickly without allocating any memory.  This function is realtime safe.
+
+   This function can only do "flat" queries, it is not smart enough to match
+   variables in nested objects.
+
+   For example:
+   @code
+   const LV2_Atom* name = NULL;
+   const LV2_Atom* age  = NULL;
+   LV2_Atom_Object_Query q[] = {
+       { urids.eg_name, &name },
+       { urids.eg_age,  &age },
+       LV2_ATOM_OBJECT_QUERY_END
+   };
+   lv2_atom_object_query(obj, q);
+   // name and age are now set to the appropriate values in obj, or NULL.
+   @endcode
+*/
+static inline int
+lv2_atom_object_query(const LV2_Atom_Object* object,
+                      LV2_Atom_Object_Query* query)
+{
+	int matches   = 0;
+	int n_queries = 0;
+
+	/* Count number of query keys so we can short-circuit when done */
+	for (LV2_Atom_Object_Query* q = query; q->key; ++q) {
+		++n_queries;
+	}
+
+	LV2_ATOM_OBJECT_FOREACH(object, prop) {
+		for (LV2_Atom_Object_Query* q = query; q->key; ++q) {
+			if (q->key == prop->key && !*q->value) {
+				*q->value = &prop->value;
+				if (++matches == n_queries) {
+					return matches;
+				}
+				break;
+			}
+		}
+	}
+	return matches;
+}
+
+/**
+   Body only version of lv2_atom_object_get().
+*/
+static inline int
+lv2_atom_object_body_get(uint32_t size, const LV2_Atom_Object_Body* body, ...)
+{
+	int matches   = 0;
+	int n_queries = 0;
+
+	/* Count number of keys so we can short-circuit when done */
+	va_list args;
+	va_start(args, body);
+	for (n_queries = 0; va_arg(args, uint32_t); ++n_queries) {
+		if (!va_arg(args, const LV2_Atom**)) {
+			return -1;
+		}
+	}
+	va_end(args);
+
+	LV2_ATOM_OBJECT_BODY_FOREACH(body, size, prop) {
+		va_start(args, body);
+		for (int i = 0; i < n_queries; ++i) {
+			uint32_t         qkey = va_arg(args, uint32_t);
+			const LV2_Atom** qval = va_arg(args, const LV2_Atom**);
+			if (qkey == prop->key && !*qval) {
+				*qval = &prop->value;
+				if (++matches == n_queries) {
+					return matches;
+				}
+				break;
+			}
+		}
+		va_end(args);
+	}
+	return matches;
+}
+
+/**
+   Variable argument version of lv2_atom_object_query().
+
+   This is nicer-looking in code, but a bit more error-prone since it is not
+   type safe and the argument list must be terminated.
+
+   The arguments should be a series of uint32_t key and const LV2_Atom** value
+   pairs, terminated by a zero key.  The value pointers MUST be initialized to
+   NULL.  For example:
+
+   @code
+   const LV2_Atom* name = NULL;
+   const LV2_Atom* age  = NULL;
+   lv2_atom_object_get(obj,
+                       uris.name_key, &name,
+                       uris.age_key,  &age,
+                       0);
+   @endcode
+*/
+static inline int
+lv2_atom_object_get(const LV2_Atom_Object* object, ...)
+{
+	int matches   = 0;
+	int n_queries = 0;
+
+	/* Count number of keys so we can short-circuit when done */
+	va_list args;
+	va_start(args, object);
+	for (n_queries = 0; va_arg(args, uint32_t); ++n_queries) {
+		if (!va_arg(args, const LV2_Atom**)) {
+			return -1;
+		}
+	}
+	va_end(args);
+
+	LV2_ATOM_OBJECT_FOREACH(object, prop) {
+		va_start(args, object);
+		for (int i = 0; i < n_queries; ++i) {
+			uint32_t         qkey = va_arg(args, uint32_t);
+			const LV2_Atom** qval = va_arg(args, const LV2_Atom**);
+			if (qkey == prop->key && !*qval) {
+				*qval = &prop->value;
+				if (++matches == n_queries) {
+					return matches;
+				}
+				break;
+			}
+		}
+		va_end(args);
+	}
+	return matches;
+}
+
+/**
+   @}
+*/
+
+#ifdef __cplusplus
+}  /* extern "C" */
+#endif
+
+#endif /* LV2_ATOM_UTIL_H */

distrho/src/lv2/atom.h

@@ -0,0 +1,246 @@
+/*
+  Copyright 2008-2012 David Robillard <http://drobilla.net>
+
+  Permission to use, copy, modify, and/or distribute this software for any
+  purpose with or without fee is hereby granted, provided that the above
+  copyright notice and this permission notice appear in all copies.
+
+  THIS SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+  WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+  MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+  ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+  WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+  ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+  OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+*/
+
+/**
+   @file atom.h C header for the LV2 Atom extension
+   <http://lv2plug.in/ns/ext/atom>.
+*/
+
+#ifndef LV2_ATOM_H
+#define LV2_ATOM_H
+
+#include <stdint.h>
+#include <stddef.h>
+
+#define LV2_ATOM_URI    "http://lv2plug.in/ns/ext/atom"
+#define LV2_ATOM_PREFIX LV2_ATOM_URI "#"
+
+#define LV2_ATOM__Atom          LV2_ATOM_PREFIX "Atom"
+#define LV2_ATOM__AtomPort      LV2_ATOM_PREFIX "AtomPort"
+#define LV2_ATOM__Blank         LV2_ATOM_PREFIX "Blank"
+#define LV2_ATOM__Bool          LV2_ATOM_PREFIX "Bool"
+#define LV2_ATOM__Chunk         LV2_ATOM_PREFIX "Chunk"
+#define LV2_ATOM__Double        LV2_ATOM_PREFIX "Double"
+#define LV2_ATOM__Event         LV2_ATOM_PREFIX "Event"
+#define LV2_ATOM__Float         LV2_ATOM_PREFIX "Float"
+#define LV2_ATOM__Int           LV2_ATOM_PREFIX "Int"
+#define LV2_ATOM__Literal       LV2_ATOM_PREFIX "Literal"
+#define LV2_ATOM__Long          LV2_ATOM_PREFIX "Long"
+#define LV2_ATOM__Number        LV2_ATOM_PREFIX "Number"
+#define LV2_ATOM__Object        LV2_ATOM_PREFIX "Object"
+#define LV2_ATOM__Path          LV2_ATOM_PREFIX "Path"
+#define LV2_ATOM__Property      LV2_ATOM_PREFIX "Property"
+#define LV2_ATOM__Resource      LV2_ATOM_PREFIX "Resource"
+#define LV2_ATOM__Sequence      LV2_ATOM_PREFIX "Sequence"
+#define LV2_ATOM__Sound         LV2_ATOM_PREFIX "Sound"
+#define LV2_ATOM__String        LV2_ATOM_PREFIX "String"
+#define LV2_ATOM__Tuple         LV2_ATOM_PREFIX "Tuple"
+#define LV2_ATOM__URI           LV2_ATOM_PREFIX "URI"
+#define LV2_ATOM__URID          LV2_ATOM_PREFIX "URID"
+#define LV2_ATOM__Vector        LV2_ATOM_PREFIX "Vector"
+#define LV2_ATOM__atomTransfer  LV2_ATOM_PREFIX "atomTransfer"
+#define LV2_ATOM__beatTime      LV2_ATOM_PREFIX "beatTime"
+#define LV2_ATOM__bufferType    LV2_ATOM_PREFIX "bufferType"
+#define LV2_ATOM__childType     LV2_ATOM_PREFIX "childType"
+#define LV2_ATOM__eventTransfer LV2_ATOM_PREFIX "eventTransfer"
+#define LV2_ATOM__frameTime     LV2_ATOM_PREFIX "frameTime"
+#define LV2_ATOM__supports      LV2_ATOM_PREFIX "supports"
+#define LV2_ATOM__timeUnit      LV2_ATOM_PREFIX "timeUnit"
+
+#define LV2_ATOM_REFERENCE_TYPE 0
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/** This expression will fail to compile if double does not fit in 64 bits. */
+typedef char lv2_atom_assert_double_fits_in_64_bits[
+	((sizeof(double) <= sizeof(uint64_t)) * 2) - 1];
+
+/**
+   Return a pointer to the contents of an Atom.  The "contents" of an atom
+   is the data past the complete type-specific header.
+   @param type The type of the atom, e.g. LV2_Atom_String.
+   @param atom A variable-sized atom.
+*/
+#define LV2_ATOM_CONTENTS(type, atom) \
+	((uint8_t*)(atom) + sizeof(type))
+
+/**
+   Const version of LV2_ATOM_CONTENTS.
+*/
+#define LV2_ATOM_CONTENTS_CONST(type, atom) \
+	((const uint8_t*)(atom) + sizeof(type))
+
+/**
+   Return a pointer to the body of an Atom.  The "body" of an atom is the
+   data just past the LV2_Atom head (i.e. the same offset for all types).
+*/
+#define LV2_ATOM_BODY(atom) LV2_ATOM_CONTENTS(LV2_Atom, atom)
+
+/**
+   Const version of LV2_ATOM_BODY.
+*/
+#define LV2_ATOM_BODY_CONST(atom) LV2_ATOM_CONTENTS_CONST(LV2_Atom, atom)
+
+/** The header of an atom:Atom. */
+typedef struct {
+	uint32_t size;  /**< Size in bytes, not including type and size. */
+	uint32_t type;  /**< Type of this atom (mapped URI). */
+} LV2_Atom;
+
+/** An atom:Int or atom:Bool.  May be cast to LV2_Atom. */
+typedef struct {
+	LV2_Atom atom;  /**< Atom header. */
+	int32_t  body;  /**< Integer value. */
+} LV2_Atom_Int;
+
+/** An atom:Long.  May be cast to LV2_Atom. */
+typedef struct {
+	LV2_Atom atom;  /**< Atom header. */
+	int64_t  body;  /**< Integer value. */
+} LV2_Atom_Long;
+
+/** An atom:Float.  May be cast to LV2_Atom. */
+typedef struct {
+	LV2_Atom atom;  /**< Atom header. */
+	float    body;  /**< Floating point value. */
+} LV2_Atom_Float;
+
+/** An atom:Double.  May be cast to LV2_Atom. */
+typedef struct {
+	LV2_Atom atom;  /**< Atom header. */
+	double   body;  /**< Floating point value. */
+} LV2_Atom_Double;
+
+/** An atom:Bool.  May be cast to LV2_Atom. */
+typedef LV2_Atom_Int LV2_Atom_Bool;
+
+/** An atom:URID.  May be cast to LV2_Atom. */
+typedef struct {
+	LV2_Atom atom;  /**< Atom header. */
+	uint32_t body;  /**< URID. */
+} LV2_Atom_URID;
+
+/** An atom:String.  May be cast to LV2_Atom. */
+typedef struct {
+	LV2_Atom atom;  /**< Atom header. */
+	/* Contents (a null-terminated UTF-8 string) follow here. */
+} LV2_Atom_String;
+
+/** The body of an atom:Literal. */
+typedef struct {
+	uint32_t datatype;  /**< Datatype URID. */
+	uint32_t lang;      /**< Language URID. */
+	/* Contents (a null-terminated UTF-8 string) follow here. */
+} LV2_Atom_Literal_Body;
+
+/** An atom:Literal.  May be cast to LV2_Atom. */
+typedef struct {
+	LV2_Atom              atom;  /**< Atom header. */
+	LV2_Atom_Literal_Body body;  /**< Body. */
+} LV2_Atom_Literal;
+
+/** An atom:Tuple.  May be cast to LV2_Atom. */
+typedef struct {
+	LV2_Atom atom;  /**< Atom header. */
+	/* Contents (a series of complete atoms) follow here. */
+} LV2_Atom_Tuple;
+
+/** The body of an atom:Vector. */
+typedef struct {
+	uint32_t child_size;  /**< The size of each element in the vector. */
+	uint32_t child_type;  /**< The type of each element in the vector. */
+	/* Contents (a series of packed atom bodies) follow here. */
+} LV2_Atom_Vector_Body;
+
+/** An atom:Vector.  May be cast to LV2_Atom. */
+typedef struct {
+	LV2_Atom             atom;  /**< Atom header. */
+	LV2_Atom_Vector_Body body;  /**< Body. */
+} LV2_Atom_Vector;
+
+/** The body of an atom:Property (e.g. in an atom:Object). */
+typedef struct {
+	uint32_t key;      /**< Key (predicate) (mapped URI). */
+	uint32_t context;  /**< Context URID (may be, and generally is, 0). */
+	LV2_Atom value;    /**< Value atom header. */
+	/* Value atom body follows here. */
+} LV2_Atom_Property_Body;
+
+/** An atom:Property.  May be cast to LV2_Atom. */
+typedef struct {
+	LV2_Atom               atom;  /**< Atom header. */
+	LV2_Atom_Property_Body body;  /**< Body. */
+} LV2_Atom_Property;
+
+/** The body of an atom:Object. May be cast to LV2_Atom. */
+typedef struct {
+	uint32_t id;     /**< URID (atom:Resource) or blank ID (atom:Blank). */
+	uint32_t otype;  /**< Type URID (same as rdf:type, for fast dispatch). */
+	/* Contents (a series of property bodies) follow here. */
+} LV2_Atom_Object_Body;
+
+/** An atom:Object.  May be cast to LV2_Atom. */
+typedef struct {
+	LV2_Atom             atom;  /**< Atom header. */
+	LV2_Atom_Object_Body body;  /**< Body. */
+} LV2_Atom_Object;
+
+/** The header of an atom:Event.  Note this type is NOT an LV2_Atom. */
+typedef struct {
+	/** Time stamp.  Which type is valid is determined by context. */
+	union {
+		int64_t frames;  /**< Time in audio frames. */
+		double  beats;   /**< Time in beats. */
+	} time;
+	LV2_Atom body;  /**< Event body atom header. */
+	/* Body atom contents follow here. */
+} LV2_Atom_Event;
+
+/**
+   The body of an atom:Sequence (a sequence of events).
+
+   The unit field is either a URID that described an appropriate time stamp
+   type, or may be 0 where a default stamp type is known.  For
+   LV2_Descriptor::run(), the default stamp type is audio frames.
+
+   The contents of a sequence is a series of LV2_Atom_Event, each aligned
+   to 64-bits, e.g.:
+   <pre>
+   | Event 1 (size 6)                              | Event 2
+   |       |       |       |       |       |       |       |       |
+   | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
+   |FRAMES |SUBFRMS|TYPE   |SIZE   |DATADATADATAPAD|FRAMES |SUBFRMS|...
+   </pre>
+*/
+typedef struct {
+	uint32_t unit;  /**< URID of unit of event time stamps. */
+	uint32_t pad;   /**< Currently unused. */
+	/* Contents (a series of events) follow here. */
+} LV2_Atom_Sequence_Body;
+
+/** An atom:Sequence. */
+typedef struct {
+	LV2_Atom               atom;  /**< Atom header. */
+	LV2_Atom_Sequence_Body body;  /**< Body. */
+} LV2_Atom_Sequence;
+
+#ifdef __cplusplus
+}  /* extern "C" */
+#endif
+
+#endif  /* LV2_ATOM_H */

distrho/src/lv2/buf-size.h

@@ -0,0 +1,30 @@
+/*
+  Copyright 2007-2012 David Robillard <http://drobilla.net>
+
+  Permission to use, copy, modify, and/or distribute this software for any
+  purpose with or without fee is hereby granted, provided that the above
+  copyright notice and this permission notice appear in all copies.
+
+  THIS SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+  WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+  MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+  ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+  WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+  ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+  OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+*/
+
+#ifndef LV2_BUF_SIZE_H
+#define LV2_BUF_SIZE_H
+
+#define LV2_BUF_SIZE_URI    "http://lv2plug.in/ns/ext/buf-size"
+#define LV2_BUF_SIZE_PREFIX LV2_BUF_SIZE_URI "#"
+
+#define LV2_BUF_SIZE__boundedBlockLength  LV2_BUF_SIZE_PREFIX "boundedBlockLength"
+#define LV2_BUF_SIZE__fixedBlockLength    LV2_BUF_SIZE_PREFIX "fixedBlockLength"
+#define LV2_BUF_SIZE__maxBlockLength      LV2_BUF_SIZE_PREFIX "maxBlockLength"
+#define LV2_BUF_SIZE__minBlockLength      LV2_BUF_SIZE_PREFIX "minBlockLength"
+#define LV2_BUF_SIZE__powerOf2BlockLength LV2_BUF_SIZE_PREFIX "powerOf2BlockLength"
+#define LV2_BUF_SIZE__sequenceSize        LV2_BUF_SIZE_PREFIX "sequenceSize"
+
+#endif  /* LV2_BUF_SIZE_H */

distrho/src/lv2/data-access.h

@@ -0,0 +1,63 @@
+/*
+  LV2 Data Access Extension
+  Copyright 2008-2011 David Robillard <http://drobilla.net>
+
+  Permission to use, copy, modify, and/or distribute this software for any
+  purpose with or without fee is hereby granted, provided that the above
+  copyright notice and this permission notice appear in all copies.
+
+  THIS SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+  WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+  MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+  ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+  WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+  ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+  OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+*/
+
+/**
+   @file data-access.h
+   C header for the LV2 Extension Data extension
+   <http://lv2plug.in/ns/ext/data-access>.
+
+   This extension defines a method for (e.g.) plugin UIs to have (possibly
+   marshalled) access to the extension_data function on a plugin instance.
+*/
+
+#ifndef LV2_DATA_ACCESS_H
+#define LV2_DATA_ACCESS_H
+
+#define LV2_DATA_ACCESS_URI "http://lv2plug.in/ns/ext/data-access"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+   The data field of the LV2_Feature for this extension.
+
+   To support this feature the host must pass an LV2_Feature struct to the
+   instantiate method with URI "http://lv2plug.in/ns/ext/data-access"
+   and data pointed to an instance of this struct.
+*/
+typedef struct {
+	/**
+	   A pointer to a method the UI can call to get data (of a type specified
+	   by some other extension) from the plugin.
+
+	   This call never is never guaranteed to return anything, UIs should
+	   degrade gracefully if direct access to the plugin data is not possible
+	   (in which case this function will return NULL).
+
+	   This is for access to large data that can only possibly work if the UI
+	   and plugin are running in the same process.  For all other things, use
+	   the normal LV2 UI communication system.
+	*/
+	const void* (*data_access)(const char* uri);
+} LV2_Extension_Data_Feature;
+
+#ifdef __cplusplus
+}  /* extern "C" */
+#endif
+
+#endif  /* LV2_DATA_ACCESS_H */

distrho/src/lv2/dynmanifest.h

@@ -0,0 +1,144 @@
+/*
+  Dynamic manifest specification for LV2
+  Copyright 2008-2011 Stefano D'Angelo <zanga.mail@gmail.com>
+
+  Permission to use, copy, modify, and/or distribute this software for any
+  purpose with or without fee is hereby granted, provided that the above
+  copyright notice and this permission notice appear in all copies.
+
+  THIS SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+  WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+  MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+  ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+  WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+  ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+  OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+*/
+
+/**
+   @file dynmanifest.h
+   C header for the LV2 Dynamic Manifest extension
+   <http://lv2plug.in/ns/ext/dynmanifest>.
+   Revision: 1.2
+*/
+
+#ifndef LV2_DYN_MANIFEST_H_INCLUDED
+#define LV2_DYN_MANIFEST_H_INCLUDED
+
+#include <stdio.h>
+
+#include "lv2.h"
+
+#define LV2_DYN_MANIFEST_URI "http://lv2plug.in/ns/ext/dynmanifest"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+   Dynamic manifest generator handle.
+
+   This handle indicates a particular status of a dynamic manifest generator.
+   The host MUST NOT attempt to interpret it and, unlikely LV2_Handle, it is
+   NOT even valid to compare this to NULL. The dynamic manifest generator MAY
+   use it to reference internal data.
+*/
+typedef void * LV2_Dyn_Manifest_Handle;
+
+/**
+   Generate the dynamic manifest.
+
+   @param handle Pointer to an uninitialized dynamic manifest generator handle.
+
+   @param features NULL terminated array of LV2_Feature structs which represent
+   the features the host supports. The dynamic manifest generator may refuse to
+   (re)generate the dynamic manifest if required features are not found here
+   (however hosts SHOULD NOT use this as a discovery mechanism, instead of
+   reading the static manifest file). This array must always exist; if a host
+   has no features, it MUST pass a single element array containing NULL.
+
+   @return 0 on success, otherwise a non-zero error code. The host SHOULD
+   evaluate the result of the operation by examining the returned value and
+   MUST NOT try to interpret the value of handle.
+*/
+int lv2_dyn_manifest_open(LV2_Dyn_Manifest_Handle *  handle,
+                          const LV2_Feature *const * features);
+
+/**
+   Fetch a "list" of subject URIs described in the dynamic manifest.
+
+   The dynamic manifest generator has to fill the resource only with the needed
+   triples to make the host aware of the "objects" it wants to expose. For
+   example, if the plugin library exposes a regular LV2 plugin, it should
+   output only a triple like the following:
+
+   <http://www.example.com/plugin/uri> a lv2:Plugin .
+
+   The objects that are elegible for exposure are those that would need to be
+   represented by a subject node in a static manifest.
+
+   @param handle Dynamic manifest generator handle.
+
+   @param fp FILE * identifying the resource the host has to set up for the
+   dynamic manifest generator. The host MUST pass a writable, empty resource to
+   this function, and the dynamic manifest generator MUST ONLY perform write
+   operations on it at the end of the stream (e.g., using only fprintf(),
+   fwrite() and similar).
+
+   @return 0 on success, otherwise a non-zero error code.
+*/
+int lv2_dyn_manifest_get_subjects(LV2_Dyn_Manifest_Handle handle,
+                                  FILE *                  fp);
+
+/**
+   Function that fetches data related to a specific URI.
+
+   The dynamic manifest generator has to fill the resource with data related to
+   object represented by the given URI. For example, if the library exposes a
+   regular LV2 plugin whose URI, as retrieved by the host using
+   lv2_dyn_manifest_get_subjects() is http://www.example.com/plugin/uri, it
+   should output something like:
+
+   <pre>
+   <http://www.example.com/plugin/uri>
+       a lv2:Plugin ;
+       doap:name "My Plugin" ;
+       lv2:binary <mylib.so> ;
+       etc:etc "..." .
+   </pre>
+
+   @param handle Dynamic manifest generator handle.
+
+   @param fp FILE * identifying the resource the host has to set up for the
+   dynamic manifest generator. The host MUST pass a writable resource to this
+   function, and the dynamic manifest generator MUST ONLY perform write
+   operations on it at the current position of the stream (e.g. using only
+   fprintf(), fwrite() and similar).
+
+   @param uri URI to get data about (in the "plain" form, i.e., absolute URI
+   without Turtle prefixes).
+
+   @return 0 on success, otherwise a non-zero error code.
+*/
+int lv2_dyn_manifest_get_data(LV2_Dyn_Manifest_Handle handle,
+                              FILE *                  fp,
+                              const char *            uri);
+
+/**
+   Function that ends the operations on the dynamic manifest generator.
+
+   This function SHOULD be used by the dynamic manifest generator to perform
+   cleanup operations, etc.
+
+   Once this function is called, referring to handle will cause undefined
+   behavior.
+
+   @param handle Dynamic manifest generator handle.
+*/
+void lv2_dyn_manifest_close(LV2_Dyn_Manifest_Handle handle);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* LV2_DYN_MANIFEST_H_INCLUDED */

distrho/src/lv2/event-helpers.h

@@ -0,0 +1,263 @@
+/*
+  Copyright 2008-2012 David Robillard <http://drobilla.net>
+
+  Permission to use, copy, modify, and/or distribute this software for any
+  purpose with or without fee is hereby granted, provided that the above
+  copyright notice and this permission notice appear in all copies.
+
+  THIS SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+  WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+  MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+  ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+  WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+  ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+  OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+*/
+
+/**
+   @file event-helpers.h Helper functions for the LV2 Event extension
+   <http://lv2plug.in/ns/ext/event>.
+*/
+
+#ifndef LV2_EVENT_HELPERS_H
+#define LV2_EVENT_HELPERS_H
+
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "event.h"
+
+#ifdef __cplusplus
+extern "C" {
+#else
+#    include <stdbool.h>
+#endif
+
+/** @file
+ * Helper functions for the LV2 Event extension
+ * <http://lv2plug.in/ns/ext/event>.
+ *
+ * These functions are provided for convenience only, use of them is not
+ * required for supporting lv2ev (i.e. the events extension is defined by the
+ * raw buffer format described in lv2_event.h and NOT by this API).
+ *
+ * Note that these functions are all static inline which basically means:
+ * do not take the address of these functions. */
+
+
+/** Pad a size to 64 bits (for event sizes) */
+static inline uint16_t
+lv2_event_pad_size(uint16_t size)
+{
+	return (size + 7) & (~7);
+}
+
+
+/** Initialize (empty, reset..) an existing event buffer.
+ * The contents of buf are ignored entirely and overwritten, except capacity
+ * which is unmodified. */
+static inline void
+lv2_event_buffer_reset(LV2_Event_Buffer*  buf,
+                       uint16_t           stamp_type,
+                       uint8_t           *data)
+{
+	buf->data = data;
+	buf->header_size = sizeof(LV2_Event_Buffer);
+	buf->stamp_type = stamp_type;
+	buf->event_count = 0;
+	buf->size = 0;
+}
+
+
+/** Allocate a new, empty event buffer. */
+static inline LV2_Event_Buffer*
+lv2_event_buffer_new(uint32_t capacity, uint16_t stamp_type)
+{
+	const size_t      size = sizeof(LV2_Event_Buffer) + capacity;
+	LV2_Event_Buffer* buf  = (LV2_Event_Buffer*)malloc(size);
+	if (buf != NULL) {
+		buf->capacity = capacity;
+		lv2_event_buffer_reset(buf, stamp_type, (uint8_t *)(buf + 1));
+		return buf;
+	} else {
+		return NULL;
+	}
+}
+
+
+/** An iterator over an LV2_Event_Buffer.
+ *
+ * Multiple simultaneous read iterators over a single buffer is fine,
+ * but changing the buffer invalidates all iterators (e.g. RW Lock). */
+typedef struct {
+	LV2_Event_Buffer* buf;
+	uint32_t          offset;
+} LV2_Event_Iterator;
+
+
+/** Reset an iterator to point to the start of @a buf.
+ * @return True if @a iter is valid, otherwise false (buffer is empty) */
+static inline bool
+lv2_event_begin(LV2_Event_Iterator* iter,
+                LV2_Event_Buffer*   buf)
+{
+	iter->buf = buf;
+	iter->offset = 0;
+	return (buf->size > 0);
+}
+
+
+/** Check if @a iter is valid.
+ * @return True if @a iter is valid, otherwise false (past end of buffer) */
+static inline bool
+lv2_event_is_valid(LV2_Event_Iterator* iter)
+{
+	return (iter->buf && (iter->offset < iter->buf->size));
+}
+
+
+/** Advance @a iter forward one event.
+ * @a iter must be valid.
+ * @return True if @a iter is valid, otherwise false (reached end of buffer) */
+static inline bool
+lv2_event_increment(LV2_Event_Iterator* iter)
+{
+	if (!lv2_event_is_valid(iter)) {
+		return false;
+	}
+
+	LV2_Event* const ev = (LV2_Event*)(
+			(uint8_t*)iter->buf->data + iter->offset);
+
+	iter->offset += lv2_event_pad_size(sizeof(LV2_Event) + ev->size);
+
+	return true;
+}
+
+
+/** Dereference an event iterator (get the event currently pointed at).
+ * @a iter must be valid.
+ * @a data if non-NULL, will be set to point to the contents of the event
+ *         returned.
+ * @return A Pointer to the event @a iter is currently pointing at, or NULL
+ *         if the end of the buffer is reached (in which case @a data is
+ *         also set to NULL). */
+static inline LV2_Event*
+lv2_event_get(LV2_Event_Iterator* iter,
+              uint8_t**           data)
+{
+	if (!lv2_event_is_valid(iter)) {
+		return NULL;
+	}
+
+	LV2_Event* const ev = (LV2_Event*)(
+			(uint8_t*)iter->buf->data + iter->offset);
+
+	if (data)
+		*data = (uint8_t*)ev + sizeof(LV2_Event);
+
+	return ev;
+}
+
+
+/** Write an event at @a iter.
+ * The event (if any) pointed to by @a iter will be overwritten, and @a iter
+ * incremented to point to the following event (i.e. several calls to this
+ * function can be done in sequence without twiddling iter in-between).
+ * @return True if event was written, otherwise false (buffer is full). */
+static inline bool
+lv2_event_write(LV2_Event_Iterator* iter,
+                uint32_t            frames,
+                uint32_t            subframes,
+                uint16_t            type,
+                uint16_t            size,
+                const uint8_t*      data)
+{
+	if (!iter->buf)
+		return false;
+
+	if (iter->buf->capacity - iter->buf->size < sizeof(LV2_Event) + size)
+		return false;
+
+	LV2_Event* const ev = (LV2_Event*)(
+			(uint8_t*)iter->buf->data + iter->offset);
+
+	ev->frames = frames;
+	ev->subframes = subframes;
+	ev->type = type;
+	ev->size = size;
+	memcpy((uint8_t*)ev + sizeof(LV2_Event), data, size);
+	++iter->buf->event_count;
+
+	size = lv2_event_pad_size(sizeof(LV2_Event) + size);
+	iter->buf->size += size;
+	iter->offset    += size;
+
+	return true;
+}
+
+
+/** Reserve space for an event in the buffer and return a pointer to
+    the memory where the caller can write the event data, or NULL if there
+    is not enough room in the buffer. */
+static inline uint8_t*
+lv2_event_reserve(LV2_Event_Iterator* iter,
+                  uint32_t frames,
+                  uint32_t subframes,
+                  uint16_t type,
+                  uint16_t size)
+{
+	if (iter->buf->capacity - iter->buf->size < sizeof(LV2_Event) + size)
+		return NULL;
+
+	LV2_Event* const ev = (LV2_Event*)((uint8_t*)iter->buf->data +
+					   iter->offset);
+
+	ev->frames = frames;
+	ev->subframes = subframes;
+	ev->type = type;
+	ev->size = size;
+	++iter->buf->event_count;
+
+	size = lv2_event_pad_size(sizeof(LV2_Event) + size);
+	iter->buf->size += size;
+	iter->offset    += size;
+
+	return (uint8_t*)ev + sizeof(LV2_Event);
+}
+
+
+/** Write an event at @a iter.
+ * The event (if any) pointed to by @a iter will be overwritten, and @a iter
+ * incremented to point to the following event (i.e. several calls to this
+ * function can be done in sequence without twiddling iter in-between).
+ * @return True if event was written, otherwise false (buffer is full). */
+static inline bool
+lv2_event_write_event(LV2_Event_Iterator* iter,
+                      const LV2_Event*    ev,
+                      const uint8_t*      data)
+{
+	if (iter->buf->capacity - iter->buf->size < sizeof(LV2_Event) + ev->size)
+		return false;
+
+	LV2_Event* const write_ev = (LV2_Event*)(
+			(uint8_t*)iter->buf->data + iter->offset);
+
+	*write_ev = *ev;
+	memcpy((uint8_t*)write_ev + sizeof(LV2_Event), data, ev->size);
+	++iter->buf->event_count;
+
+	const uint16_t size = lv2_event_pad_size(sizeof(LV2_Event) + ev->size);
+	iter->buf->size += size;
+	iter->offset    += size;
+
+	return true;
+}
+
+#ifdef __cplusplus
+}  /* extern "C" */
+#endif
+
+#endif /* LV2_EVENT_HELPERS_H */
+

distrho/src/lv2/event.h

@@ -0,0 +1,294 @@
+/*
+  Copyright 2008-2011 David Robillard <http://drobilla.net>
+  Copyright 2006-2007 Lars Luthman <lars.luthman@gmail.com>
+
+  Permission to use, copy, modify, and/or distribute this software for any
+  purpose with or without fee is hereby granted, provided that the above
+  copyright notice and this permission notice appear in all copies.
+
+  THIS SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+  WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+  MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+  ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+  WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+  ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+  OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+*/
+
+/**
+   @file event.h
+   C API for the LV2 Event extension <http://lv2plug.in/ns/ext/event>.
+
+   This extension is a generic transport mechanism for time stamped events
+   of any type (e.g. MIDI, OSC, ramps, etc). Each port can transport mixed
+   events of any type; the type of events and timestamps are defined by a URI
+   which is mapped to an integer by the host for performance reasons.
+
+   This extension requires the host to support the LV2 URI Map extension.
+   Any host which supports this extension MUST guarantee that any call to
+   the LV2 URI Map uri_to_id function with the URI of this extension as the
+   'map' argument returns a value within the range of uint16_t.
+*/
+
+#ifndef LV2_EVENT_H
+#define LV2_EVENT_H
+
+#define LV2_EVENT_URI    "http://lv2plug.in/ns/ext/event"
+#define LV2_EVENT_PREFIX LV2_EVENT_URI "#"
+
+#define LV2_EVENT__Event              LV2_EVENT_PREFIX "Event"
+#define LV2_EVENT__EventPort          LV2_EVENT_PREFIX "EventPort"
+#define LV2_EVENT__FrameStamp         LV2_EVENT_PREFIX "FrameStamp"
+#define LV2_EVENT__TimeStamp          LV2_EVENT_PREFIX "TimeStamp"
+#define LV2_EVENT__generatesTimeStamp LV2_EVENT_PREFIX "generatesTimeStamp"
+#define LV2_EVENT__generic            LV2_EVENT_PREFIX "generic"
+#define LV2_EVENT__inheritsEvent      LV2_EVENT_PREFIX "inheritsEvent"
+#define LV2_EVENT__inheritsTimeStamp  LV2_EVENT_PREFIX "inheritsTimeStamp"
+#define LV2_EVENT__supportsEvent      LV2_EVENT_PREFIX "supportsEvent"
+#define LV2_EVENT__supportsTimeStamp  LV2_EVENT_PREFIX "supportsTimeStamp"
+
+#define LV2_EVENT_AUDIO_STAMP 0
+
+#include <stdint.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+   The best Pulses Per Quarter Note for tempo-based uint32_t timestamps.
+   Equal to 2^12 * 5 * 7 * 9 * 11 * 13 * 17, which is evenly divisble
+   by all integers from 1 through 18 inclusive, and powers of 2 up to 2^12.
+*/
+static const uint32_t LV2_EVENT_PPQN = 3136573440U;
+
+/**
+   An LV2 event (header only).
+
+   LV2 events are generic time-stamped containers for any type of event.
+   The type field defines the format of a given event's contents.
+
+   This struct defines the header of an LV2 event. An LV2 event is a single
+   chunk of POD (plain old data), usually contained in a flat buffer (see
+   LV2_EventBuffer below). Unless a required feature says otherwise, hosts may
+   assume a deep copy of an LV2 event can be created safely using a simple:
+
+   memcpy(ev_copy, ev, sizeof(LV2_Event) + ev->size);  (or equivalent)
+*/
+typedef struct {
+	/**
+	   The frames portion of timestamp. The units used here can optionally be
+	   set for a port (with the lv2ev:timeUnits property), otherwise this is
+	   audio frames, corresponding to the sample_count parameter of the LV2 run
+	   method (e.g. frame 0 is the first frame for that call to run).
+	*/
+	uint32_t frames;
+
+	/**
+	   The sub-frames portion of timestamp. The units used here can optionally
+	   be set for a port (with the lv2ev:timeUnits property), otherwise this is
+	   1/(2^32) of an audio frame.
+	*/
+	uint32_t subframes;
+
+	/**
+	   The type of this event, as a number which represents some URI
+	   defining an event type. This value MUST be some value previously
+	   returned from a call to the uri_to_id function defined in the LV2
+	   URI map extension (see lv2_uri_map.h).
+	   There are special rules which must be followed depending on the type
+	   of an event. If the plugin recognizes an event type, the definition
+	   of that event type will describe how to interpret the event, and
+	   any required behaviour. Otherwise, if the type is 0, this event is a
+	   non-POD event and lv2_event_unref MUST be called if the event is
+	   'dropped' (see above). Even if the plugin does not understand an event,
+	   it may pass the event through to an output by simply copying (and NOT
+	   calling lv2_event_unref). These rules are designed to allow for generic
+	   event handling plugins and large non-POD events, but with minimal hassle
+	   on simple plugins that "don't care" about these more advanced features.
+	*/
+	uint16_t type;
+
+	/**
+	   The size of the data portion of this event in bytes, which immediately
+	   follows. The header size (12 bytes) is not included in this value.
+	*/
+	uint16_t size;
+
+	/* size bytes of data follow here */
+} LV2_Event;
+
+
+/**
+   A buffer of LV2 events (header only).
+
+   Like events (which this contains) an event buffer is a single chunk of POD:
+   the entire buffer (including contents) can be copied with a single memcpy.
+   The first contained event begins sizeof(LV2_EventBuffer) bytes after the
+   start of this struct.
+
+   After this header, the buffer contains an event header (defined by struct
+   LV2_Event), followed by that event's contents (padded to 64 bits), followed
+   by another header, etc:
+
+   |       |       |       |       |       |       |
+   | | | | | | | | | | | | | | | | | | | | | | | | |
+   |FRAMES |SUBFRMS|TYP|LEN|DATA..DATA..PAD|FRAMES | ...
+*/
+typedef struct {
+	/**
+	   The contents of the event buffer. This may or may not reside in the
+	   same block of memory as this header, plugins must not assume either.
+	   The host guarantees this points to at least capacity bytes of allocated
+	   memory (though only size bytes of that are valid events).
+	*/
+	uint8_t* data;
+
+	/**
+	   The size of this event header in bytes (including everything).
+
+	   This is to allow for extending this header in the future without
+	   breaking binary compatibility. Whenever this header is copied,
+	   it MUST be done using this field (and NOT the sizeof this struct).
+	*/
+	uint16_t header_size;
+
+	/**
+	   The type of the time stamps for events in this buffer.
+	   As a special exception, '0' always means audio frames and subframes
+	   (1/UINT32_MAX'th of a frame) in the sample rate passed to instantiate.
+
+	   INPUTS: The host must set this field to the numeric ID of some URI
+	   defining the meaning of the frames/subframes fields of contained events
+	   (obtained by the LV2 URI Map uri_to_id function with the URI of this
+	   extension as the 'map' argument, see lv2_uri_map.h).  The host must
+	   never pass a plugin a buffer which uses a stamp type the plugin does not
+	   'understand'. The value of this field must never change, except when
+	   connect_port is called on the input port, at which time the host MUST
+	   have set the stamp_type field to the value that will be used for all
+	   subsequent run calls.
+
+	   OUTPUTS: The plugin may set this to any value that has been returned
+	   from uri_to_id with the URI of this extension for a 'map' argument.
+	   When connected to a buffer with connect_port, output ports MUST set this
+	   field to the type of time stamp they will be writing. On any call to
+	   connect_port on an event input port, the plugin may change this field on
+	   any output port, it is the responsibility of the host to check if any of
+	   these values have changed and act accordingly.
+	*/
+	uint16_t stamp_type;
+
+	/**
+	   The number of events in this buffer.
+
+	   INPUTS: The host must set this field to the number of events contained
+	   in the data buffer before calling run(). The plugin must not change
+	   this field.
+
+	   OUTPUTS: The plugin must set this field to the number of events it has
+	   written to the buffer before returning from run(). Any initial value
+	   should be ignored by the plugin.
+	*/
+	uint32_t event_count;
+
+	/**
+	   The size of the data buffer in bytes.
+	   This is set by the host and must not be changed by the plugin.
+	   The host is allowed to change this between run() calls.
+	*/
+	uint32_t capacity;
+
+	/**
+	   The size of the initial portion of the data buffer containing data.
+
+	   INPUTS: The host must set this field to the number of bytes used
+	   by all events it has written to the buffer (including headers)
+	   before calling the plugin's run().
+	   The plugin must not change this field.
+
+	   OUTPUTS: The plugin must set this field to the number of bytes
+	   used by all events it has written to the buffer (including headers)
+	   before returning from run().
+	   Any initial value should be ignored by the plugin.
+	*/
+	uint32_t size;
+} LV2_Event_Buffer;
+
+
+/**
+   Opaque pointer to host data.
+*/
+typedef void* LV2_Event_Callback_Data;
+
+
+/**
+   Non-POD events feature.
+
+   To support this feature the host must pass an LV2_Feature struct to the
+   plugin's instantiate method with URI "http://lv2plug.in/ns/ext/event"
+   and data pointed to an instance of this struct.  Note this feature
+   is not mandatory to support the event extension.
+*/
+typedef struct {
+	/**
+	   Opaque pointer to host data.
+
+	   The plugin MUST pass this to any call to functions in this struct.
+	   Otherwise, it must not be interpreted in any way.
+	*/
+	LV2_Event_Callback_Data callback_data;
+
+	/**
+	   Take a reference to a non-POD event.
+
+	   If a plugin receives an event with type 0, it means the event is a
+	   pointer to some object in memory and not a flat sequence of bytes
+	   in the buffer. When receiving a non-POD event, the plugin already
+	   has an implicit reference to the event. If the event is stored AND
+	   passed to an output, lv2_event_ref MUST be called on that event.
+	   If the event is only stored OR passed through, this is not necessary
+	   (as the plugin already has 1 implicit reference).
+
+	   @param event An event received at an input that will not be copied to
+	   an output or stored in any way.
+
+	   @param context The calling context. Like event types, this is a mapped
+	   URI, see lv2_context.h. Simple plugin with just a run() method should
+	   pass 0 here (the ID of the 'standard' LV2 run context). The host
+	   guarantees that this function is realtime safe iff @a context is
+	   realtime safe.
+
+	   PLUGINS THAT VIOLATE THESE RULES MAY CAUSE CRASHES AND MEMORY LEAKS.
+	*/
+	uint32_t (*lv2_event_ref)(LV2_Event_Callback_Data callback_data,
+	                          LV2_Event*              event);
+
+	/**
+	   Drop a reference to a non-POD event.
+
+	   If a plugin receives an event with type 0, it means the event is a
+	   pointer to some object in memory and not a flat sequence of bytes
+	   in the buffer. If the plugin does not pass the event through to
+	   an output or store it internally somehow, it MUST call this function
+	   on the event (more information on using non-POD events below).
+
+	   @param event An event received at an input that will not be copied to an
+	   output or stored in any way.
+
+	   @param context The calling context. Like event types, this is a mapped
+	   URI, see lv2_context.h. Simple plugin with just a run() method should
+	   pass 0 here (the ID of the 'standard' LV2 run context). The host
+	   guarantees that this function is realtime safe iff @a context is
+	   realtime safe.
+
+	   PLUGINS THAT VIOLATE THESE RULES MAY CAUSE CRASHES AND MEMORY LEAKS.
+	*/
+	uint32_t (*lv2_event_unref)(LV2_Event_Callback_Data callback_data,
+	                            LV2_Event*              event);
+} LV2_Event_Feature;
+
+#ifdef __cplusplus
+}  /* extern "C" */
+#endif
+
+#endif /* LV2_EVENT_H */

distrho/src/lv2/instance-access.h

@@ -0,0 +1,37 @@
+/*
+  LV2 Instance Access Extension
+  Copyright 2008-2012 David Robillard <http://drobilla.net>
+
+  Permission to use, copy, modify, and/or distribute this software for any
+  purpose with or without fee is hereby granted, provided that the above
+  copyright notice and this permission notice appear in all copies.
+
+  THIS SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+  WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+  MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+  ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+  WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+  ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+  OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+*/
+
+#ifndef LV2_INSTANCE_ACCESS_H
+#define LV2_INSTANCE_ACCESS_H
+
+#define LV2_INSTANCE_ACCESS_URI "http://lv2plug.in/ns/ext/instance-access"
+
+/**
+   @file instance-access.h
+   C header for the LV2 Instance Access extension
+   <http://lv2plug.in/ns/ext/instance-access>.
+ 
+   This extension defines a method for (e.g.) plugin UIs to get a direct
+   handle to an LV2 plugin instance (LV2_Handle), if possible.
+ 
+   To support this feature the host must pass an LV2_Feature struct to the
+   UI instantiate method with URI "http://lv2plug.in/ns/ext/instance-access"
+   and data pointed directly to the LV2_Handle of the plugin instance.
+*/
+
+#endif  /* LV2_INSTANCE_ACCESS_H */
+

distrho/src/lv2/log.h

@@ -0,0 +1,99 @@
+/*
+  Copyright 2012 David Robillard <http://drobilla.net>
+
+  Permission to use, copy, modify, and/or distribute this software for any
+  purpose with or without fee is hereby granted, provided that the above
+  copyright notice and this permission notice appear in all copies.
+
+  THIS SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+  WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+  MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+  ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+  WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+  ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+  OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+*/
+
+/**
+   @file log.h C header for the LV2 Log extension
+   <http://lv2plug.in/ns/ext/log>.
+*/
+
+#ifndef LV2_LOG_H
+#define LV2_LOG_H
+
+#define LV2_LOG_URI    "http://lv2plug.in/ns/ext/log"
+#define LV2_LOG_PREFIX LV2_LOG_URI "#"
+
+#define LV2_LOG__Entry   LV2_LOG_PREFIX "Entry"
+#define LV2_LOG__Error   LV2_LOG_PREFIX "Error"
+#define LV2_LOG__Note    LV2_LOG_PREFIX "Note"
+#define LV2_LOG__Trace   LV2_LOG_PREFIX "Trace"
+#define LV2_LOG__Warning LV2_LOG_PREFIX "Warning"
+#define LV2_LOG__log     LV2_LOG_PREFIX "log"
+
+#include <stdarg.h>
+
+#include "urid.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifdef __GNUC__
+/** Allow type checking of printf-like functions. */
+#    define LV2_LOG_FUNC(fmt, arg1) __attribute__((format(printf, fmt, arg1)))
+#else
+#    define LV2_LOG_FUNC(fmt, arg1)
+#endif
+
+/**
+   Opaque data to host data for LV2_Log_Log.
+*/
+typedef void* LV2_Log_Handle;
+
+/**
+   Log feature (LV2_LOG__log)
+*/
+typedef struct _LV2_Log {
+	/**
+	   Opaque pointer to host data.
+
+	   This MUST be passed to methods in this struct whenever they are called.
+	   Otherwise, it must not be interpreted in any way.
+	*/
+	LV2_Log_Handle handle;
+
+	/**
+	   Log a message, passing format parameters directly.
+
+	   The API of this function matches that of the standard C printf function,
+	   except for the addition of the first two parameters.  This function may
+	   be called from any non-realtime context, or from any context if @p type
+	   is @ref LV2_LOG__Trace.
+	*/
+	LV2_LOG_FUNC(3, 4)
+	int (*printf)(LV2_Log_Handle handle,
+	              LV2_URID       type,
+	              const char*    fmt, ...);
+
+	/**
+	   Log a message, passing format parameters in a va_list.
+
+	   The API of this function matches that of the standard C vprintf
+	   function, except for the addition of the first two parameters.  This
+	   function may be called from any non-realtime context, or from any
+	   context if @p type is @ref LV2_LOG__Trace.
+	*/
+	LV2_LOG_FUNC(3, 0)
+	int (*vprintf)(LV2_Log_Handle handle,
+	               LV2_URID       type,
+	               const char*    fmt,
+	               va_list        ap);
+} LV2_Log_Log;
+
+#ifdef __cplusplus
+}  /* extern "C" */
+#endif
+
+#endif  /* LV2_LOG_H */

distrho/src/lv2/logger.h

@@ -0,0 +1,145 @@
+/*
+  Copyright 2012 David Robillard <http://drobilla.net>
+
+  Permission to use, copy, modify, and/or distribute this software for any
+  purpose with or without fee is hereby granted, provided that the above
+  copyright notice and this permission notice appear in all copies.
+
+  THIS SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+  WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+  MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+  ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+  WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+  ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+  OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+*/
+
+/**
+   @file logger.h Convenience API for easy logging in plugin code.
+
+   This file provides simple wrappers for the most common log operations for
+   use in plugin implementations.  If host support for logging is not
+   available, then these functions will print to stderr instead.
+
+   This header is non-normative, it is provided for convenience.
+*/
+
+#ifndef LV2_ATOM_LOGGER_H
+#define LV2_ATOM_LOGGER_H
+
+#include <stdio.h>
+
+#include "log.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+   Logger convenience API state.
+*/
+typedef struct {
+	LV2_Log_Log* log;
+
+	LV2_URID Error;
+	LV2_URID Note;
+	LV2_URID Trace;
+	LV2_URID Warning;
+} LV2_Log_Logger;
+
+/**
+   Initialise @p logger.
+
+   URIs will be mapped using @p map and stored, a reference to @p map itself is
+   not held.  Both @p map and @p log may be NULL when unsupported by the host,
+   in which case the implementation will fall back to printing to stderr.
+*/
+static inline void
+lv2_log_logger_init(LV2_Log_Logger* logger,
+                    LV2_URID_Map*   map,
+                    LV2_Log_Log*    log)
+{
+	memset(logger, 0, sizeof(LV2_Log_Logger));
+	logger->log = log;
+	if (map) {
+		logger->Error   = map->map(map->handle, LV2_LOG__Error);
+		logger->Note    = map->map(map->handle, LV2_LOG__Note);
+		logger->Trace   = map->map(map->handle, LV2_LOG__Trace);
+		logger->Warning = map->map(map->handle, LV2_LOG__Warning);
+	}
+}
+
+/**
+   Log a message to the host, or stderr if support is unavailable.
+*/
+LV2_LOG_FUNC(3, 0)
+static inline int
+lv2_log_vprintf(LV2_Log_Logger* logger,
+                LV2_URID        type,
+                const char*     fmt,
+                va_list         args)
+{
+	if (logger->log) {
+		return logger->log->vprintf(logger->log->handle, type, fmt, args);
+	} else {
+		return vfprintf(stderr, fmt, args);
+	}
+}
+
+/** Log an error via lv2_log_vprintf(). */
+LV2_LOG_FUNC(2, 3)
+static inline int
+lv2_log_error(LV2_Log_Logger* logger, const char* fmt, ...)
+{
+	va_list args;
+	va_start(args, fmt);
+	const int ret = lv2_log_vprintf(logger, logger->Error, fmt, args);
+	va_end(args);
+	return ret;
+}
+
+/** Log a note via lv2_log_vprintf(). */
+LV2_LOG_FUNC(2, 3)
+static inline int
+lv2_log_note(LV2_Log_Logger* logger, const char* fmt, ...)
+{
+	va_list args;
+	va_start(args, fmt);
+	const int ret = lv2_log_vprintf(logger, logger->Note, fmt, args);
+	va_end(args);
+	return ret;
+}
+
+/** Log a trace via lv2_log_vprintf(). */
+LV2_LOG_FUNC(2, 3)
+static inline int
+lv2_log_trace(LV2_Log_Logger* logger, const char* fmt, ...)
+{
+	va_list args;
+	va_start(args, fmt);
+	const int ret = lv2_log_vprintf(logger, logger->Trace, fmt, args);
+	va_end(args);
+	return ret;
+}
+
+/** Log a warning via lv2_log_vprintf(). */
+LV2_LOG_FUNC(2, 3)
+static inline int
+lv2_log_warning(LV2_Log_Logger* logger, const char* fmt, ...)
+{
+	va_list args;
+	va_start(args, fmt);
+	const int ret = lv2_log_vprintf(logger, logger->Warning, fmt, args);
+	va_end(args);
+	return ret;
+}
+
+/**
+   @}
+*/
+
+#ifdef __cplusplus
+}  /* extern "C" */
+#endif
+
+#endif  /* LV2_LOG_LOGGER_H */

distrho/src/lv2/lv2-midifunctions.h

@@ -0,0 +1,98 @@
+/****************************************************************************
+    
+    lv2-midifunctions.h - support file for using MIDI in LV2 plugins
+    
+    Copyright (C) 2006  Lars Luthman <lars.luthman@gmail.com>
+    
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU Lesser General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+    
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+    
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 01222-1307  USA
+
+****************************************************************************/
+
+#ifndef LV2_MIDIFUNCTIONS
+#define LV2_MIDIFUNCTIONS
+
+#include "lv2-miditype.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef struct {
+  LV2_MIDI* midi;
+  uint32_t frame_count;
+  uint32_t position;
+} LV2_MIDIState;
+
+
+inline double lv2midi_get_event(LV2_MIDIState* state,
+                                double* timestamp, 
+                                uint32_t* size, 
+                                unsigned char** data) {
+  
+  if (state->position >= state->midi->size) {
+    state->position = state->midi->size;
+    *timestamp = state->frame_count;
+    *size = 0;
+    *data = NULL;
+    return *timestamp;
+  }
+  
+  *timestamp = *(double*)(state->midi->data + state->position);
+  *size = *(size_t*)(state->midi->data + state->position + sizeof(double));
+  *data = state->midi->data + state->position + 
+    sizeof(double) + sizeof(size_t);
+  return *timestamp;
+}
+
+
+inline double lv2midi_step(LV2_MIDIState* state) {
+
+  if (state->position >= state->midi->size) {
+    state->position = state->midi->size;
+    return state->frame_count;
+  }
+  
+  state->position += sizeof(double);
+  size_t size = *(size_t*)(state->midi->data + state->position);
+  state->position += sizeof(size_t);
+  state->position += size;
+  return *(double*)(state->midi->data + state->position);
+}
+
+
+inline void lv2midi_put_event(LV2_MIDIState* state,
+                             double timestamp,
+                             uint32_t size,
+                             const unsigned char* data) {
+  
+  if (state->midi->size + sizeof(double) + sizeof(size_t) + size < state->midi->capacity)
+  {
+    *((double*)(state->midi->data + state->midi->size)) = timestamp;
+    state->midi->size += sizeof(double);
+    *((size_t*)(state->midi->data + state->midi->size)) = size;
+    state->midi->size += sizeof(size_t);
+    memcpy(state->midi->data + state->midi->size, data, size);
+
+    state->midi->size += size;
+    state->midi->event_count++;
+  }
+}
+
+#ifdef __cplusplus
+}  /* extern "C" */
+#endif
+
+#endif
+

distrho/src/lv2/lv2-miditype.h

@@ -0,0 +1,175 @@
+/****************************************************************************
+    
+    lv2-miditype.h - header file for using MIDI in LV2 plugins
+    
+    Copyright (C) 2006  Lars Luthman <lars.luthman@gmail.com>
+    
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU Lesser General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+    
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Lesser General Public License for more details.
+    
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 01222-1307  USA
+
+****************************************************************************/
+
+#ifndef LV2_MIDITYPE_H
+#define LV2_MIDITYPE_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/** This data structure is used to contain the MIDI events for one run() 
+    cycle. The port buffer for a LV2 port that has the datatype 
+    <http://ll-plugins.nongnu.org/lv2/ext/miditype> should be a pointer 
+    to an instance of this struct. 
+
+    To store two Note On events on MIDI channel 0 in a buffer, with timestamps
+    12 and 35.5, you could use something like this code (assuming that 
+    midi_data is a variable of type LV2_MIDI):
+    @code
+    
+      size_t buffer_offset = 0;
+      *(double*)(midi_data->data + buffer_offset) = 12;
+      buffer_offset += sizeof(double);
+      *(size_t*)(midi_data->data + buffer_offset) = 3;
+      buffer_offset += sizeof(size_t);
+      midi_data->data[buffer_offset++] = 0x90;
+      midi_data->data[buffer_offset++] = 0x48;
+      midi_data->data[buffer_offset++] = 0x64;
+      ++midi_data->event_count;
+      
+      *(double*)(midi_data->data + buffer_offset) = 35.5;
+      buffer_offset += sizeof(double);
+      *(size_t*)(midi_data->data + buffer_offset) = 3;
+      buffer_offset += sizeof(size_t);
+      midi_data->data[buffer_offset++] = 0x90;
+      midi_data->data[buffer_offset++] = 0x55;
+      midi_data->data[buffer_offset++] = 0x64;
+      ++midi_data->event_count;
+      
+      midi_data->size = buffer_offset;
+      
+    @endcode
+    
+    This would be done by the host in the case of an input port, and by the
+    plugin in the case of an output port. Whoever is writing events to the
+    buffer must also take care not to exceed the capacity of the data buffer.
+    
+    To read events from a buffer, you could do something like this:
+    @code
+    
+      size_t buffer_offset = 0;
+      uint32_t i;
+      for (i = 0; i < midi_data->event_count; ++i) {
+        double timestamp = *(double*)(midi_data->data + buffer_offset);
+        buffer_offset += sizeof(double);
+        size_t size = *(size_t*)(midi_data->data + buffer_offset);
+        buffer_offset += sizeof(size_t);
+        do_something_with_event(timestamp, size, 
+                                midi_data->data + buffer_offset);
+        buffer_offset += size;
+      }
+        
+    @endcode
+*/
+typedef struct {
+
+  /** The number of MIDI events in the data buffer. 
+      INPUT PORTS: It's the host's responsibility to set this field to the
+      number of MIDI events contained in the data buffer before calling the
+      plugin's run() function. The plugin may not change this field.
+      OUTPUT PORTS: It's the plugin's responsibility to set this field to the
+      number of MIDI events it has stored in the data buffer before returning
+      from the run() function. Any initial value should be ignored by the
+      plugin.
+  */
+  uint32_t  event_count;
+  
+  /** The size of the data buffer in bytes. It is set by the host and may not
+      be changed by the plugin. The host is allowed to change this between
+      run() calls.
+  */
+  uint32_t  capacity;
+  
+  /** The size of the initial part of the data buffer that actually contains
+      data.
+      INPUT PORTS: It's the host's responsibility to set this field to the
+      number of bytes used by all MIDI events it has written to the buffer
+      (including timestamps and size fields) before calling the plugin's 
+      run() function. The plugin may not change this field.
+      OUTPUT PORTS: It's the plugin's responsibility to set this field to
+      the number of bytes used by all MIDI events it has written to the
+      buffer (including timestamps and size fields) before returning from
+      the run() function. Any initial value should be ignored by the plugin.
+  */
+  uint32_t  size;
+  
+  /** The data buffer that is used to store MIDI events. The events are packed
+      after each other, and the format of each event is as follows:
+      
+      First there is a timestamp, which should have the type "double",
+      i.e. have the same bit size as a double and the same bit layout as a 
+      double (whatever that is on the current platform). This timestamp gives 
+      the offset from the beginning of the current cycle, in frames, that 
+      the MIDI event occurs on. It must be strictly smaller than the 'nframes'
+      parameter to the current run() call. The MIDI events in the buffer must 
+      be ordered by their timestamp, e.g. an event with a timestamp of 123.23
+      must be stored after an event with a timestamp of 65.0.
+      
+      The second part of the event is a size field, which should have the type
+      "size_t" (as defined in the standard C header stddef.h). It should 
+      contain the size of the MIDI data for this event, i.e. the number of 
+      bytes used to store the actual MIDI event. The bytes used by the 
+      timestamp and the size field should not be counted.
+      
+      The third part of the event is the actual MIDI data. There are some
+      requirements that must be followed:
+      
+      * Running status is not allowed. Every event must have its own status 
+        byte.
+      * Note On events with velocity 0 are not allowed. These events are 
+        equivalent to Note Off in standard MIDI streams, but in order to make
+        plugins and hosts easier to write, as well as more efficient, only
+        proper Note Off events are allowed as Note Off. 
+      * "Realtime events" (status bytes 0xF8 to 0xFF) are allowed, but may not
+        occur inside other events like they are allowed to in hardware MIDI 
+        streams.
+      * All events must be fully contained in a single data buffer, i.e. events
+        may not "wrap around" by storing the first few bytes in one buffer and
+        then wait for the next run() call to store the rest of the event. If 
+        there isn't enough space in the current data buffer to store an event,
+        the event will either have to wait until next run() call, be ignored,
+        or compensated for in some more clever way.
+      * All events must be valid MIDI events. This means for example that
+        only the first byte in each event (the status byte) may have the eighth
+        bit set, that Note On and Note Off events are always 3 bytes long etc.
+        The MIDI writer (host or plugin) is responsible for writing valid MIDI
+        events to the buffer, and the MIDI reader (plugin or host) can assume
+        that all events are valid.
+        
+      On a platform where double is 8 bytes and size_t is 4 bytes, the data 
+      buffer layout for a 3-byte event followed by a 4-byte event may look 
+      something like this:
+      _______________________________________________________________
+      | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ...
+      |TIMESTAMP 1    |SIZE 1 |DATA |TIMESTAMP 2    |SIZE 2 |DATA   | ...
+      
+  */
+  unsigned char* data;
+
+} LV2_MIDI;
+
+#ifdef __cplusplus
+}  /* extern "C" */
+#endif
+
+#endif

distrho/src/lv2/lv2.h

@@ -0,0 +1,454 @@
+/*
+  LV2 - An audio plugin interface specification.
+  Copyright 2006-2012 Steve Harris, David Robillard.
+
+  Based on LADSPA, Copyright 2000-2002 Richard W.E. Furse,
+  Paul Barton-Davis, Stefan Westerfeld.
+
+  Permission to use, copy, modify, and/or distribute this software for any
+  purpose with or without fee is hereby granted, provided that the above
+  copyright notice and this permission notice appear in all copies.
+
+  THIS SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+  WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+  MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+  ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+  WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+  ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+  OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+*/
+
+/**
+   @file lv2.h
+   API for the LV2 specification <http://lv2plug.in/ns/lv2core>.
+   Revision: 6.5
+*/
+
+#ifndef LV2_H_INCLUDED
+#define LV2_H_INCLUDED
+
+#include <stdint.h>
+
+#define LV2_CORE_URI    "http://lv2plug.in/ns/lv2core"
+#define LV2_CORE_PREFIX LV2_CORE_URI "#"
+
+#define LV2_CORE__AllpassPlugin      LV2_CORE_PREFIX "AllpassPlugin"
+#define LV2_CORE__AmplifierPlugin    LV2_CORE_PREFIX "AmplifierPlugin"
+#define LV2_CORE__AnalyserPlugin     LV2_CORE_PREFIX "AnalyserPlugin"
+#define LV2_CORE__AudioPort          LV2_CORE_PREFIX "AudioPort"
+#define LV2_CORE__BandpassPlugin     LV2_CORE_PREFIX "BandpassPlugin"
+#define LV2_CORE__CVPort             LV2_CORE_PREFIX "CVPort"
+#define LV2_CORE__ChorusPlugin       LV2_CORE_PREFIX "ChorusPlugin"
+#define LV2_CORE__CombPlugin         LV2_CORE_PREFIX "CombPlugin"
+#define LV2_CORE__CompressorPlugin   LV2_CORE_PREFIX "CompressorPlugin"
+#define LV2_CORE__ConstantPlugin     LV2_CORE_PREFIX "ConstantPlugin"
+#define LV2_CORE__ControlPort        LV2_CORE_PREFIX "ControlPort"
+#define LV2_CORE__ConverterPlugin    LV2_CORE_PREFIX "ConverterPlugin"
+#define LV2_CORE__DelayPlugin        LV2_CORE_PREFIX "DelayPlugin"
+#define LV2_CORE__DistortionPlugin   LV2_CORE_PREFIX "DistortionPlugin"
+#define LV2_CORE__DynamicsPlugin     LV2_CORE_PREFIX "DynamicsPlugin"
+#define LV2_CORE__EQPlugin           LV2_CORE_PREFIX "EQPlugin"
+#define LV2_CORE__EnvelopePlugin     LV2_CORE_PREFIX "EnvelopePlugin"
+#define LV2_CORE__ExpanderPlugin     LV2_CORE_PREFIX "ExpanderPlugin"
+#define LV2_CORE__ExtensionData      LV2_CORE_PREFIX "ExtensionData"
+#define LV2_CORE__Feature            LV2_CORE_PREFIX "Feature"
+#define LV2_CORE__FilterPlugin       LV2_CORE_PREFIX "FilterPlugin"
+#define LV2_CORE__FlangerPlugin      LV2_CORE_PREFIX "FlangerPlugin"
+#define LV2_CORE__FunctionPlugin     LV2_CORE_PREFIX "FunctionPlugin"
+#define LV2_CORE__GatePlugin         LV2_CORE_PREFIX "GatePlugin"
+#define LV2_CORE__GeneratorPlugin    LV2_CORE_PREFIX "GeneratorPlugin"
+#define LV2_CORE__HighpassPlugin     LV2_CORE_PREFIX "HighpassPlugin"
+#define LV2_CORE__InputPort          LV2_CORE_PREFIX "InputPort"
+#define LV2_CORE__InstrumentPlugin   LV2_CORE_PREFIX "InstrumentPlugin"
+#define LV2_CORE__LimiterPlugin      LV2_CORE_PREFIX "LimiterPlugin"
+#define LV2_CORE__LowpassPlugin      LV2_CORE_PREFIX "LowpassPlugin"
+#define LV2_CORE__MixerPlugin        LV2_CORE_PREFIX "MixerPlugin"
+#define LV2_CORE__ModulatorPlugin    LV2_CORE_PREFIX "ModulatorPlugin"
+#define LV2_CORE__MultiEQPlugin      LV2_CORE_PREFIX "MultiEQPlugin"
+#define LV2_CORE__OscillatorPlugin   LV2_CORE_PREFIX "OscillatorPlugin"
+#define LV2_CORE__OutputPort         LV2_CORE_PREFIX "OutputPort"
+#define LV2_CORE__ParaEQPlugin       LV2_CORE_PREFIX "ParaEQPlugin"
+#define LV2_CORE__PhaserPlugin       LV2_CORE_PREFIX "PhaserPlugin"
+#define LV2_CORE__PitchPlugin        LV2_CORE_PREFIX "PitchPlugin"
+#define LV2_CORE__Plugin             LV2_CORE_PREFIX "Plugin"
+#define LV2_CORE__PluginBase         LV2_CORE_PREFIX "PluginBase"
+#define LV2_CORE__Point              LV2_CORE_PREFIX "Point"
+#define LV2_CORE__Port               LV2_CORE_PREFIX "Port"
+#define LV2_CORE__PortProperty       LV2_CORE_PREFIX "PortProperty"
+#define LV2_CORE__Resource           LV2_CORE_PREFIX "Resource"
+#define LV2_CORE__ReverbPlugin       LV2_CORE_PREFIX "ReverbPlugin"
+#define LV2_CORE__ScalePoint         LV2_CORE_PREFIX "ScalePoint"
+#define LV2_CORE__SimulatorPlugin    LV2_CORE_PREFIX "SimulatorPlugin"
+#define LV2_CORE__SpatialPlugin      LV2_CORE_PREFIX "SpatialPlugin"
+#define LV2_CORE__Specification      LV2_CORE_PREFIX "Specification"
+#define LV2_CORE__SpectralPlugin     LV2_CORE_PREFIX "SpectralPlugin"
+#define LV2_CORE__UtilityPlugin      LV2_CORE_PREFIX "UtilityPlugin"
+#define LV2_CORE__WaveshaperPlugin   LV2_CORE_PREFIX "WaveshaperPlugin"
+#define LV2_CORE__appliesTo          LV2_CORE_PREFIX "appliesTo"
+#define LV2_CORE__binary             LV2_CORE_PREFIX "binary"
+#define LV2_CORE__connectionOptional LV2_CORE_PREFIX "connectionOptional"
+#define LV2_CORE__control            LV2_CORE_PREFIX "control"
+#define LV2_CORE__default            LV2_CORE_PREFIX "default"
+#define LV2_CORE__designation        LV2_CORE_PREFIX "designation"
+#define LV2_CORE__documentation      LV2_CORE_PREFIX "documentation"
+#define LV2_CORE__enumeration        LV2_CORE_PREFIX "enumeration"
+#define LV2_CORE__extensionData      LV2_CORE_PREFIX "extensionData"
+#define LV2_CORE__freeWheeling       LV2_CORE_PREFIX "freeWheeling"
+#define LV2_CORE__hardRTCapable      LV2_CORE_PREFIX "hardRTCapable"
+#define LV2_CORE__inPlaceBroken      LV2_CORE_PREFIX "inPlaceBroken"
+#define LV2_CORE__index              LV2_CORE_PREFIX "index"
+#define LV2_CORE__integer            LV2_CORE_PREFIX "integer"
+#define LV2_CORE__isLive             LV2_CORE_PREFIX "isLive"
+#define LV2_CORE__latency            LV2_CORE_PREFIX "latency"
+#define LV2_CORE__maximum            LV2_CORE_PREFIX "maximum"
+#define LV2_CORE__microVersion       LV2_CORE_PREFIX "microVersion"
+#define LV2_CORE__minimum            LV2_CORE_PREFIX "minimum"
+#define LV2_CORE__minorVersion       LV2_CORE_PREFIX "minorVersion"
+#define LV2_CORE__name               LV2_CORE_PREFIX "name"
+#define LV2_CORE__optionalFeature    LV2_CORE_PREFIX "optionalFeature"
+#define LV2_CORE__port               LV2_CORE_PREFIX "port"
+#define LV2_CORE__portProperty       LV2_CORE_PREFIX "portProperty"
+#define LV2_CORE__project            LV2_CORE_PREFIX "project"
+#define LV2_CORE__reportsLatency     LV2_CORE_PREFIX "reportsLatency"
+#define LV2_CORE__requiredFeature    LV2_CORE_PREFIX "requiredFeature"
+#define LV2_CORE__sampleRate         LV2_CORE_PREFIX "sampleRate"
+#define LV2_CORE__scalePoint         LV2_CORE_PREFIX "scalePoint"
+#define LV2_CORE__symbol             LV2_CORE_PREFIX "symbol"
+#define LV2_CORE__toggled            LV2_CORE_PREFIX "toggled"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+   Plugin Instance Handle.
+
+   This is a handle for one particular instance of a plugin.  It is valid to
+   compare to NULL (or 0 for C++) but otherwise the host MUST NOT attempt to
+   interpret it.
+*/
+typedef void * LV2_Handle;
+
+/**
+   Feature.
+
+   Features allow hosts to make additional functionality available to plugins
+   without requiring modification to the LV2 API.  Extensions may define new
+   features and specify the @ref URI and @ref data to be used if necessary.
+   Some features, such as lv2:isLive, do not require the host to pass data.
+*/
+typedef struct _LV2_Feature {
+	/**
+	   A globally unique, case-sensitive identifier (URI) for this feature.
+
+	   This MUST be a valid URI string as defined by RFC 3986.
+	*/
+	const char * URI;
+
+	/**
+	   Pointer to arbitrary data.
+
+	   The format of this data is defined by the extension which describes the
+	   feature with the given @ref URI.
+	*/
+	void * data;
+} LV2_Feature;
+
+/**
+   Plugin Descriptor.
+
+   This structure provides the core functions necessary to instantiate and use
+   a plugin.
+*/
+typedef struct _LV2_Descriptor {
+	/**
+	   A globally unique, case-sensitive identifier for this plugin.
+
+	   This MUST be a valid URI string as defined by RFC 3986.  All plugins with
+	   the same URI MUST be compatible to some degree, see
+	   http://lv2plug.in/ns/lv2core for details.
+	*/
+	const char * URI;
+
+	/**
+	   Instantiate the plugin.
+
+	   Note that instance initialisation should generally occur in activate()
+	   rather than here. If a host calls instantiate(), it MUST call cleanup()
+	   at some point in the future.
+
+	   @param descriptor Descriptor of the plugin to instantiate.
+
+	   @param sample_rate Sample rate, in Hz, for the new plugin instance.
+
+	   @param bundle_path Path to the LV2 bundle which contains this plugin
+	   binary. It MUST include the trailing directory separator (e.g. '/') so
+	   that simply appending a filename will yield the path to that file in the
+	   bundle.
+
+	   @param features A NULL terminated array of LV2_Feature structs which
+	   represent the features the host supports. Plugins may refuse to
+	   instantiate if required features are not found here. However, hosts MUST
+	   NOT use this as a discovery mechanism: instead, use the RDF data to
+	   determine which features are required and do not attempt to instantiate
+	   unsupported plugins at all. This parameter MUST NOT be NULL, i.e. a host
+	   that supports no features MUST pass a single element array containing
+	   NULL.
+
+	   @return A handle for the new plugin instance, or NULL if instantiation
+	   has failed.
+	*/
+	LV2_Handle (*instantiate)(const struct _LV2_Descriptor * descriptor,
+	                          double                         sample_rate,
+	                          const char *                   bundle_path,
+	                          const LV2_Feature *const *     features);
+
+	/**
+	   Connect a port on a plugin instance to a memory location.
+
+	   Plugin writers should be aware that the host may elect to use the same
+	   buffer for more than one port and even use the same buffer for both
+	   input and output (see lv2:inPlaceBroken in lv2.ttl).
+
+	   If the plugin has the feature lv2:hardRTCapable then there are various
+	   things that the plugin MUST NOT do within the connect_port() function;
+	   see lv2core.ttl for details.
+
+	   connect_port() MUST be called at least once for each port before run()
+	   is called, unless that port is lv2:connectionOptional. The plugin must
+	   pay careful attention to the block size passed to run() since the block
+	   allocated may only just be large enough to contain the data, and is not
+	   guaranteed to remain constant between run() calls.
+
+	   connect_port() may be called more than once for a plugin instance to
+	   allow the host to change the buffers that the plugin is reading or
+	   writing. These calls may be made before or after activate() or
+	   deactivate() calls.
+
+	   @param instance Plugin instance containing the port.
+
+	   @param port Index of the port to connect. The host MUST NOT try to
+	   connect a port index that is not defined in the plugin's RDF data. If
+	   it does, the plugin's behaviour is undefined (a crash is likely).
+
+	   @param data_location Pointer to data of the type defined by the port
+	   type in the plugin's RDF data (e.g. an array of float for an
+	   lv2:AudioPort). This pointer must be stored by the plugin instance and
+	   used to read/write data when run() is called. Data present at the time
+	   of the connect_port() call MUST NOT be considered meaningful.
+	*/
+	void (*connect_port)(LV2_Handle instance,
+	                     uint32_t   port,
+	                     void *     data_location);
+
+	/**
+	   Initialise a plugin instance and activate it for use.
+
+	   This is separated from instantiate() to aid real-time support and so
+	   that hosts can reinitialise a plugin instance by calling deactivate()
+	   and then activate(). In this case the plugin instance MUST reset all
+	   state information dependent on the history of the plugin instance except
+	   for any data locations provided by connect_port(). If there is nothing
+	   for activate() to do then this field may be NULL.
+
+	   When present, hosts MUST call this function once before run() is called
+	   for the first time. This call SHOULD be made as close to the run() call
+	   as possible and indicates to real-time plugins that they are now live,
+	   however plugins MUST NOT rely on a prompt call to run() after
+	   activate().
+
+	   The host MUST NOT call activate() again until deactivate() has been
+	   called first. If a host calls activate(), it MUST call deactivate() at
+	   some point in the future. Note that connect_port() may be called before
+	   or after activate().
+	*/
+	void (*activate)(LV2_Handle instance);
+
+	/**
+	   Run a plugin instance for a block.
+
+	   Note that if an activate() function exists then it must be called before
+	   run(). If deactivate() is called for a plugin instance then run() may
+	   not be called until activate() has been called again.
+
+	   If the plugin has the feature lv2:hardRTCapable then there are various
+	   things that the plugin MUST NOT do within the run() function (see
+	   lv2core.ttl for details).
+
+	   As a special case, when @p sample_count == 0, the plugin should update
+	   any output ports that represent a single instant in time (e.g. control
+	   ports, but not audio ports). This is particularly useful for latent
+	   plugins, which should update their latency output port so hosts can
+	   pre-roll plugins to compute latency. Plugins MUST NOT crash when
+	   @p sample_count == 0.
+
+	   @param instance Instance to be run.
+
+	   @param sample_count The block size (in samples) for which the plugin
+	   instance must run.
+	*/
+	void (*run)(LV2_Handle instance,
+	            uint32_t   sample_count);
+
+	/**
+	   Deactivate a plugin instance (counterpart to activate()).
+
+	   Hosts MUST deactivate all activated instances after they have been run()
+	   for the last time. This call SHOULD be made as close to the last run()
+	   call as possible and indicates to real-time plugins that they are no
+	   longer live, however plugins MUST NOT rely on prompt deactivation. If
+	   there is nothing for deactivate() to do then this field may be NULL
+
+	   Deactivation is not similar to pausing since the plugin instance will be
+	   reinitialised by activate(). However, deactivate() itself MUST NOT fully
+	   reset plugin state. For example, the host may deactivate a plugin, then
+	   store its state (using some extension to do so).
+
+	   Hosts MUST NOT call deactivate() unless activate() was previously
+	   called. Note that connect_port() may be called before or after
+	   deactivate().
+	*/
+	void (*deactivate)(LV2_Handle instance);
+
+	/**
+	   Clean up a plugin instance (counterpart to instantiate()).
+
+	   Once an instance of a plugin has been finished with it must be deleted
+	   using this function. The instance handle passed ceases to be valid after
+	   this call.
+
+	   If activate() was called for a plugin instance then a corresponding call
+	   to deactivate() MUST be made before cleanup() is called. Hosts MUST NOT
+	   call cleanup() unless instantiate() was previously called.
+	*/
+	void (*cleanup)(LV2_Handle instance);
+
+	/**
+	   Return additional plugin data defined by some extenion.
+
+	   A typical use of this facility is to return a struct containing function
+	   pointers to extend the LV2_Descriptor API.
+
+	   The actual type and meaning of the returned object MUST be specified
+	   precisely by the extension. This function MUST return NULL for any
+	   unsupported URI. If a plugin does not support any extension data, this
+	   field may be NULL.
+
+	   The host is never responsible for freeing the returned value.
+	*/
+	const void * (*extension_data)(const char * uri);
+} LV2_Descriptor;
+
+/**
+   Put this (LV2_SYMBOL_EXPORT) before any functions that are to be loaded
+   by the host as a symbol from the dynamic library.
+*/
+#ifdef _WIN32
+#    define LV2_SYMBOL_EXPORT __declspec(dllexport)
+#else
+#    define LV2_SYMBOL_EXPORT
+#endif
+
+/**
+   Prototype for plugin accessor function.
+
+   This is part of the old discovery API, which has been replaced due to being
+   inadequate for some plugins.  It is limited because the bundle path is not
+   available during discovery, and it relies on non-portable shared library
+   constructors/destructors.  However, this API is still supported and plugins
+   are not required to migrate.
+
+   Plugins are discovered by hosts using RDF data (not by loading libraries).
+   See http://lv2plug.in for details on the discovery process, though most
+   hosts should use an existing library to implement this functionality.
+
+   A plugin library MUST include a function called "lv2_descriptor" with this
+   prototype.  This function MUST have C-style linkage (if you are using C++
+   this is taken care of by the 'extern "C"' clause at the top of this file).
+
+   When it is time to load a plugin (designated by its URI), the host loads the
+   plugin's library, gets the lv2_descriptor() function from it, and uses this
+   function to find the LV2_Descriptor for the desired plugin.  Plugins are
+   accessed by index using values from 0 upwards.  This function MUST return
+   NULL for out of range indices, so the host can enumerate plugins by
+   increasing @p index until NULL is returned.
+
+   Note that @p index has no meaning, hosts MUST NOT depend on it remaining
+   consistent between loads of the plugin library.
+*/
+LV2_SYMBOL_EXPORT
+const LV2_Descriptor * lv2_descriptor(uint32_t index);
+
+/**
+   Type of the lv2_descriptor() function in a library (old discovery API).
+*/
+typedef const LV2_Descriptor *
+(*LV2_Descriptor_Function)(uint32_t index);
+
+/**
+   Handle for a library descriptor.
+*/
+typedef void* LV2_Lib_Handle;
+
+/**
+   Descriptor for a plugin library.
+
+   To access a plugin library, the host creates an LV2_Lib_Descriptor via the
+   lv2_lib_descriptor() function in the shared object.
+*/
+typedef struct {
+	/**
+	   Opaque library data which must be passed as the first parameter to all
+	   the methods of this struct.
+	*/
+	LV2_Lib_Handle handle;
+
+	/**
+	   The total size of this struct.  This allows for this struct to be
+	   expanded in the future if necessary.  This MUST be set by the library to
+	   sizeof(LV2_Lib_Descriptor).  The host MUST NOT access any fields of this
+	   struct beyond get_plugin() unless this field indicates they are present.
+	*/
+	uint32_t size;
+
+	/**
+	   Destroy this library descriptor and free all related resources.
+	*/
+	void (*cleanup)(LV2_Lib_Handle handle);
+
+	/**
+	   Plugin accessor.
+
+	   Plugins are accessed by index using values from 0 upwards.  Out of range
+	   indices MUST result in this function returning NULL, so the host can
+	   enumerate plugins by increasing @a index until NULL is returned.
+	*/
+	const LV2_Descriptor * (*get_plugin)(LV2_Lib_Handle handle,
+	                                     uint32_t       index);
+} LV2_Lib_Descriptor;
+
+/**
+   Prototype for library accessor function.
+
+   This is the entry point for a plugin library.  Hosts load this symbol from
+   the library and call this function to obtain a library descriptor which can
+   be used to access all the contained plugins.  The returned object must not
+   be destroyed (using LV2_Lib_Descriptor::cleanup()) until all plugins loaded
+   from that library have been destroyed.
+*/
+const LV2_Lib_Descriptor *
+lv2_lib_descriptor(const char *               bundle_path,
+                   const LV2_Feature *const * features);
+
+/**
+   Type of the lv2_lib_descriptor() function in an LV2 library.
+*/
+typedef const LV2_Lib_Descriptor *
+(*LV2_Lib_Descriptor_Function)(const char *               bundle_path,
+                               const LV2_Feature *const * features);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* LV2_H_INCLUDED */

distrho/src/lv2/lv2_external_ui.h

@@ -0,0 +1,107 @@
+/*
+  LV2 External UI extension
+  This work is in public domain.
+
+  This file is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+
+  If you have questions, contact Filipe Coelho (aka falkTX) <falktx@falktx.com>
+  or ask in #lad channel, FreeNode IRC network.
+*/
+
+/**
+   @file lv2_external_ui.h
+   C header for the LV2 External UI extension <http://kxstudio.sf.net/ns/lv2ext/external-ui>.
+*/
+
+#ifndef LV2_EXTERNAL_UI_H
+#define LV2_EXTERNAL_UI_H
+
+#include "ui.h"
+
+#define LV2_EXTERNAL_UI_URI     "http://kxstudio.sf.net/ns/lv2ext/external-ui"
+#define LV2_EXTERNAL_UI_PREFIX  LV2_EXTERNAL_UI_URI "#"
+
+#define LV2_EXTERNAL_UI__Host   LV2_EXTERNAL_UI_PREFIX "Host"
+#define LV2_EXTERNAL_UI__Widget LV2_EXTERNAL_UI_PREFIX "Widget"
+
+/** This extension used to be defined by a lv2plug.in URI */
+#define LV2_EXTERNAL_UI_DEPRECATED_URI "http://lv2plug.in/ns/extensions/ui#external"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * When LV2_EXTERNAL_UI__Widget UI is instantiated, the returned
+ * LV2UI_Widget handle must be cast to pointer to LV2_External_UI_Widget.
+ * UI is created in invisible state.
+ */
+typedef struct _LV2_External_UI_Widget {
+  /**
+   * Host calls this function regulary. UI library implementing the
+   * callback may do IPC or redraw the UI.
+   *
+   * @param _this_ the UI context
+   */
+  void (*run)(struct _LV2_External_UI_Widget * _this_);
+
+  /**
+   * Host calls this function to make the plugin UI visible.
+   *
+   * @param _this_ the UI context
+   */
+  void (*show)(struct _LV2_External_UI_Widget * _this_);
+
+  /**
+   * Host calls this function to make the plugin UI invisible again.
+   *
+   * @param _this_ the UI context
+   */
+  void (*hide)(struct _LV2_External_UI_Widget * _this_);
+
+} LV2_External_UI_Widget;
+
+#define LV2_EXTERNAL_UI_RUN(ptr)  (ptr)->run(ptr)
+#define LV2_EXTERNAL_UI_SHOW(ptr) (ptr)->show(ptr)
+#define LV2_EXTERNAL_UI_HIDE(ptr) (ptr)->hide(ptr)
+
+/**
+ * On UI instantiation, host must supply LV2_EXTERNAL_UI__Host feature.
+ * LV2_Feature::data must be pointer to LV2_External_UI_Host.
+ */
+typedef struct _LV2_External_UI_Host {
+  /**
+   * Callback that plugin UI will call
+   * when UI (GUI window) is closed by user.
+   * This callback will be called during execution of LV2_External_UI_Widget::run()
+   * (i.e. not from background thread).
+   *
+   * After this callback is called, UI is defunct. Host must call
+   * LV2UI_Descriptor::cleanup(). If host wants to make the UI visible
+   * again UI must be reinstantiated.
+   *
+   * @param controller Host context associated with plugin UI, as
+   * supplied to LV2UI_Descriptor::instantiate()
+   */
+  void (*ui_closed)(LV2UI_Controller controller);
+
+  /**
+   * Optional (may be NULL) "user friendly" identifier which the UI
+   * may display to allow a user to easily associate this particular
+   * UI instance with the correct plugin instance as it is represented
+   * by the host (e.g. "track 1" or "channel 4").
+   *
+   * If supplied by host, the string will be referenced only during
+   * LV2UI_Descriptor::instantiate()
+   */
+  const char * plugin_human_id;
+
+} LV2_External_UI_Host;
+
+#ifdef __cplusplus
+} /* extern "C" */
+#endif
+
+#endif /* LV2_EXTERNAL_UI_H */

distrho/src/lv2/lv2_programs.h

@@ -0,0 +1,174 @@
+/*
+  LV2 Programs Extension
+  Copyright 2012 Filipe Coelho <falktx@falktx.com>
+
+  Permission to use, copy, modify, and/or distribute this software for any
+  purpose with or without fee is hereby granted, provided that the above
+  copyright notice and this permission notice appear in all copies.
+
+  THIS SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+  WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+  MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+  ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+  WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+  ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+  OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+*/
+
+/**
+   @file lv2_programs.h
+   C header for the LV2 programs extension <http://kxstudio.sf.net/ns/lv2ext/programs>.
+*/
+
+#ifndef LV2_PROGRAMS_H
+#define LV2_PROGRAMS_H
+
+#include "lv2.h"
+#include "ui.h"
+
+#define LV2_PROGRAMS_URI    "http://kxstudio.sf.net/ns/lv2ext/programs"
+#define LV2_PROGRAMS_PREFIX LV2_PROGRAMS_URI "#"
+
+#define LV2_PROGRAMS__Host        LV2_PROGRAMS_PREFIX "Host"
+#define LV2_PROGRAMS__Interface   LV2_PROGRAMS_PREFIX "Interface"
+#define LV2_PROGRAMS__UIInterface LV2_PROGRAMS_PREFIX "UIInterface"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef void* LV2_Programs_Handle;
+
+typedef struct _LV2_Program_Descriptor {
+
+    /** Bank number for this program. Note that this extension does not
+        support MIDI-style separation of bank LSB and MSB values. There is
+        no restriction on the set of available banks: the numbers do not
+        need to be contiguous, there does not need to be a bank 0, etc. */
+    uint32_t bank;
+
+    /** Program number (unique within its bank) for this program. There is
+        no restriction on the set of available programs: the numbers do not
+        need to be contiguous, there does not need to be a program 0, etc. */
+    uint32_t program;
+
+    /** Name of the program. */
+    const char * name;
+
+} LV2_Program_Descriptor;
+
+/**
+   Programs extension, plugin data.
+
+   When the plugin's extension_data is called with argument LV2_PROGRAMS__Interface,
+   the plugin MUST return an LV2_Programs_Instance structure, which remains valid
+   for the lifetime of the plugin.
+*/
+typedef struct _LV2_Programs_Interface {
+    /**
+     * get_program()
+     *
+     * This member is a function pointer that provides a description
+     * of a program (named preset sound) available on this plugin.
+     *
+     * The index argument is an index into the plugin's list of
+     * programs, not a program number as represented by the Program
+     * field of the LV2_Program_Descriptor. (This distinction is
+     * needed to support plugins that use non-contiguous program or
+     * bank numbers.)
+     *
+     * This function returns a LV2_Program_Descriptor pointer that is
+     * guaranteed to be valid only until the next call to get_program
+     * or deactivate, on the same plugin instance. This function must
+     * return NULL if passed an index argument out of range, so that
+     * the host can use it to query the number of programs as well as
+     * their properties.
+     */
+    const LV2_Program_Descriptor *(*get_program)(LV2_Handle handle,
+                                                 uint32_t index);
+
+    /**
+     * select_program()
+     *
+     * This member is a function pointer that selects a new program
+     * for this plugin. The program change should take effect
+     * immediately at the start of the next run() call. (This
+     * means that a host providing the capability of changing programs
+     * between any two notes on a track must vary the block size so as
+     * to place the program change at the right place. A host that
+     * wanted to avoid this would probably just instantiate a plugin
+     * for each program.)
+     *
+     * Plugins should ignore a select_program() call with an invalid
+     * bank or program.
+     *
+     * A plugin is not required to select any particular default
+     * program on activate(): it's the host's duty to set a program
+     * explicitly.
+     *
+     * A plugin is permitted to re-write the values of its input
+     * control ports when select_program is called. The host should
+     * re-read the input control port values and update its own
+     * records appropriately. (This is the only circumstance in which
+     * a LV2 plugin is allowed to modify its own control-input ports.)
+     */
+    void (*select_program)(LV2_Handle handle,
+                           uint32_t bank,
+                           uint32_t program);
+
+} LV2_Programs_Interface;
+
+/**
+   Programs extension, UI data.
+
+   When the UI's extension_data is called with argument LV2_PROGRAMS__UIInterface,
+   the UI MUST return an LV2_Programs_UI_Interface structure, which remains valid
+   for the lifetime of the UI.
+*/
+typedef struct _LV2_Programs_UI_Interface {
+    /**
+     * select_program()
+     *
+     * This is exactly the same as select_program in LV2_Programs_Instance,
+     * but this struct relates to the UI instead of the plugin.
+     *
+     * When called, UIs should update their state to match the selected program.
+     */
+    void (*select_program)(LV2UI_Handle handle,
+                           uint32_t bank,
+                           uint32_t program);
+
+} LV2_Programs_UI_Interface;
+
+/**
+    Feature data for LV2_PROGRAMS__Host.
+*/
+typedef struct _LV2_Programs_Host {
+    /**
+     *  Opaque host data.
+     */
+    LV2_Programs_Handle handle;
+
+    /**
+     * program_changed()
+     *
+     * Tell the host to reload a plugin's program.
+     * Parameter handle MUST be the 'handle' member of this struct.
+     * Parameter index is program index to change.
+     * When index is -1, host should reload all the programs.
+     *
+     * The plugin MUST NEVER call this function on a RT context or during run().
+     *
+     * NOTE: This call is to inform the host about a program's bank, program or name change.
+     *       It DOES NOT change the current selected program.
+     */
+    void (*program_changed)(LV2_Programs_Handle handle,
+                            int32_t index);
+
+} LV2_Programs_Host;
+
+#ifdef __cplusplus
+} /* extern "C" */
+#endif
+
+#endif /* LV2_PROGRAMS_H */

distrho/src/lv2/lv2_rtmempool.h

@@ -0,0 +1,105 @@
+/*
+  LV2 realtime safe memory pool extension definition
+  This work is in public domain.
+
+  This file is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+
+  If you have questions, contact Filipe Coelho (aka falkTX) <falktx@falktx.com>
+  or ask in #lad channel, FreeNode IRC network.
+*/
+
+/**
+ * @file lv2_rtmempool.h
+ * C header for the LV2 rtmempool extension <http://kxstudio.sf.net/ns/lv2ext/rtmempool>.
+ *
+ */
+
+#ifndef LV2_RTMEMPOOL_H
+#define LV2_RTMEMPOOL_H
+
+#define LV2_RTSAFE_MEMORY_POOL_URI    "http://kxstudio.sf.net/ns/lv2ext/rtmempool"
+#define LV2_RTSAFE_MEMORY_POOL_PREFIX LV2_RTSAFE_MEMORY_POOL_URI "#"
+
+#define LV2_RTSAFE_MEMORY_POOL__Pool  LV2_RTSAFE_MEMORY_POOL_URI "Pool"
+
+/** max size of memory pool name, in chars, including terminating zero char */
+#define LV2_RTSAFE_MEMORY_POOL_NAME_MAX 128
+
+#ifdef __cplusplus
+extern "C" {
+#else
+#include <stdbool.h>
+#endif
+
+/**
+ * Opaque data to host data for LV2_RtMemPool_Pool.
+ */
+typedef void* LV2_RtMemPool_Handle;
+
+/**
+ * On instantiation, host must supply LV2_RTSAFE_MEMORY_POOL__Pool feature.
+ * LV2_Feature::data must be pointer to LV2_RtMemPool_Pool.
+ */
+typedef struct _LV2_RtMemPool_Pool {
+  /**
+   * This function is called when plugin wants to create memory pool
+   *
+   * <b>may/will sleep</b>
+   *
+   * @param pool_name pool name, for debug purposes, max RTSAFE_MEMORY_POOL_NAME_MAX chars, including terminating zero char. May be NULL.
+   * @param data_size memory chunk size
+   * @param min_preallocated min chunks preallocated
+   * @param max_preallocated max chunks preallocated
+   *
+   * @return Success status, true if successful
+   */
+  bool (*create)(LV2_RtMemPool_Handle * handle_ptr,
+                 const char * pool_name,
+                 size_t data_size,
+                 size_t min_preallocated,
+                 size_t max_preallocated);
+
+  /**
+   * This function is called when plugin wants to destroy previously created memory pool
+   *
+   * <b>may/will sleep</b>
+   */
+  void (*destroy)(LV2_RtMemPool_Handle handle);
+
+  /**
+   * This function is called when plugin wants to allocate memory in context where sleeping is not allowed
+   *
+   * <b>will not sleep</b>
+   *
+   * @return Pointer to allocated memory or NULL if memory no memory is available
+   */
+  void * (*allocate_atomic)(LV2_RtMemPool_Handle handle);
+
+  /**
+   * This function is called when plugin wants to allocate memory in context where sleeping is allowed
+   *
+   * <b>may/will sleep</b>
+   *
+   * @return Pointer to allocated memory or NULL if memory no memory is available (should not happen under normal conditions)
+   */
+  void * (*allocate_sleepy)(LV2_RtMemPool_Handle handle);
+
+  /**
+   * This function is called when plugin wants to deallocate previously allocated memory
+   *
+   * <b>will not sleep</b>
+   *
+   * @param memory_ptr pointer to previously allocated memory chunk
+   */
+  void (*deallocate)(LV2_RtMemPool_Handle handle,
+                     void * memory_ptr);
+
+} LV2_RtMemPool_Pool;
+
+#ifdef __cplusplus
+} /* extern "C" */
+#endif
+
+#endif /* LV2_RTMEMPOOL_H */

distrho/src/lv2/midi.h

@@ -0,0 +1,226 @@
+/*
+  Copyright 2012 David Robillard <http://drobilla.net>
+
+  Permission to use, copy, modify, and/or distribute this software for any
+  purpose with or without fee is hereby granted, provided that the above
+  copyright notice and this permission notice appear in all copies.
+
+  THIS SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+  WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+  MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+  ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+  WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+  ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+  OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+*/
+
+/**
+   @file midi.h
+   C definitions for the LV2 MIDI extension <http://lv2plug.in/ns/ext/midi>.
+*/
+
+#ifndef LV2_MIDI_H
+#define LV2_MIDI_H
+
+#include <stdint.h>
+
+#ifdef __cplusplus
+extern "C" {
+#else
+#    include <stdbool.h>
+#endif
+
+#define LV2_MIDI_URI    "http://lv2plug.in/ns/ext/midi"
+#define LV2_MIDI_PREFIX LV2_MIDI_URI "#"
+
+#define LV2_MIDI__ActiveSense      LV2_MIDI_PREFIX "ActiveSense"
+#define LV2_MIDI__Aftertouch       LV2_MIDI_PREFIX "Aftertouch"
+#define LV2_MIDI__Bender           LV2_MIDI_PREFIX "Bender"
+#define LV2_MIDI__ChannelPressure  LV2_MIDI_PREFIX "ChannelPressure"
+#define LV2_MIDI__Chunk            LV2_MIDI_PREFIX "Chunk"
+#define LV2_MIDI__Clock            LV2_MIDI_PREFIX "Clock"
+#define LV2_MIDI__Continue         LV2_MIDI_PREFIX "Continue"
+#define LV2_MIDI__Controller       LV2_MIDI_PREFIX "Controller"
+#define LV2_MIDI__MidiEvent        LV2_MIDI_PREFIX "MidiEvent"
+#define LV2_MIDI__NoteOff          LV2_MIDI_PREFIX "NoteOff"
+#define LV2_MIDI__NoteOn           LV2_MIDI_PREFIX "NoteOn"
+#define LV2_MIDI__ProgramChange    LV2_MIDI_PREFIX "ProgramChange"
+#define LV2_MIDI__QuarterFrame     LV2_MIDI_PREFIX "QuarterFrame"
+#define LV2_MIDI__Reset            LV2_MIDI_PREFIX "Reset"
+#define LV2_MIDI__SongPosition     LV2_MIDI_PREFIX "SongPosition"
+#define LV2_MIDI__SongSelect       LV2_MIDI_PREFIX "SongSelect"
+#define LV2_MIDI__Start            LV2_MIDI_PREFIX "Start"
+#define LV2_MIDI__Stop             LV2_MIDI_PREFIX "Stop"
+#define LV2_MIDI__SystemCommon     LV2_MIDI_PREFIX "SystemCommon"
+#define LV2_MIDI__SystemExclusive  LV2_MIDI_PREFIX "SystemExclusive"
+#define LV2_MIDI__SystemMessage    LV2_MIDI_PREFIX "SystemMessage"
+#define LV2_MIDI__SystemRealtime   LV2_MIDI_PREFIX "SystemRealtime"
+#define LV2_MIDI__Tick             LV2_MIDI_PREFIX "Tick"
+#define LV2_MIDI__TuneRequest      LV2_MIDI_PREFIX "TuneRequest"
+#define LV2_MIDI__VoiceMessage     LV2_MIDI_PREFIX "VoiceMessage"
+#define LV2_MIDI__benderValue      LV2_MIDI_PREFIX "benderValue"
+#define LV2_MIDI__binding          LV2_MIDI_PREFIX "binding"
+#define LV2_MIDI__byteNumber       LV2_MIDI_PREFIX "byteNumber"
+#define LV2_MIDI__channel          LV2_MIDI_PREFIX "channel"
+#define LV2_MIDI__chunk            LV2_MIDI_PREFIX "chunk"
+#define LV2_MIDI__controllerNumber LV2_MIDI_PREFIX "controllerNumber"
+#define LV2_MIDI__controllerValue  LV2_MIDI_PREFIX "controllerValue"
+#define LV2_MIDI__noteNumber       LV2_MIDI_PREFIX "noteNumber"
+#define LV2_MIDI__pressure         LV2_MIDI_PREFIX "pressure"
+#define LV2_MIDI__programNumber    LV2_MIDI_PREFIX "programNumber"
+#define LV2_MIDI__property         LV2_MIDI_PREFIX "property"
+#define LV2_MIDI__songNumber       LV2_MIDI_PREFIX "songNumber"
+#define LV2_MIDI__songPosition     LV2_MIDI_PREFIX "songPosition"
+#define LV2_MIDI__status           LV2_MIDI_PREFIX "status"
+#define LV2_MIDI__statusMask       LV2_MIDI_PREFIX "statusMask"
+#define LV2_MIDI__velocity         LV2_MIDI_PREFIX "velocity"
+
+/**
+   MIDI Message Type.
+
+   This includes both voice messages (which have a channel) and system messages
+   (which do not), as well as a sentinel value for invalid messages.  To get
+   the type of a message suitable for use in a switch statement, use
+   lv2_midi_get_type() on the status byte.
+*/
+typedef enum {
+	LV2_MIDI_MSG_INVALID          = 0,     /**< Invalid Message */
+	LV2_MIDI_MSG_NOTE_OFF         = 0x80,  /**< Note Off */
+	LV2_MIDI_MSG_NOTE_ON          = 0x90,  /**< Note On */
+	LV2_MIDI_MSG_NOTE_PRESSURE    = 0xA0,  /**< Note Pressure */
+	LV2_MIDI_MSG_CONTROLLER       = 0xB0,  /**< Controller */
+	LV2_MIDI_MSG_PGM_CHANGE       = 0xC0,  /**< Program Change */
+	LV2_MIDI_MSG_CHANNEL_PRESSURE = 0xD0,  /**< Channel Pressure */
+	LV2_MIDI_MSG_BENDER           = 0xE0,  /**< Pitch Bender */
+	LV2_MIDI_MSG_SYSTEM_EXCLUSIVE = 0xF0,  /**< System Exclusive Begin */
+	LV2_MIDI_MSG_MTC_QUARTER      = 0xF1,  /**< MTC Quarter Frame */
+	LV2_MIDI_MSG_SONG_POS         = 0xF2,  /**< Song Position */
+	LV2_MIDI_MSG_SONG_SELECT      = 0xF3,  /**< Song Select */
+	LV2_MIDI_MSG_TUNE_REQUEST     = 0xF6,  /**< Tune Request */
+	LV2_MIDI_MSG_CLOCK            = 0xF8,  /**< Clock */
+	LV2_MIDI_MSG_START            = 0xFA,  /**< Start */
+	LV2_MIDI_MSG_CONTINUE         = 0xFB,  /**< Continue */
+	LV2_MIDI_MSG_STOP             = 0xFC,  /**< Stop */
+	LV2_MIDI_MSG_ACTIVE_SENSE     = 0xFE,  /**< Active Sensing */
+	LV2_MIDI_MSG_RESET            = 0xFF   /**< Reset */
+} LV2_Midi_Message_Type;
+
+/**
+   Standard MIDI Controller Numbers.
+*/
+typedef enum {
+	LV2_MIDI_CTL_MSB_BANK             = 0x00,  /**< Bank Selection */
+	LV2_MIDI_CTL_MSB_MODWHEEL         = 0x01,  /**< Modulation */
+	LV2_MIDI_CTL_MSB_BREATH           = 0x02,  /**< Breath */
+	LV2_MIDI_CTL_MSB_FOOT             = 0x04,  /**< Foot */
+	LV2_MIDI_CTL_MSB_PORTAMENTO_TIME  = 0x05,  /**< Portamento Time */
+	LV2_MIDI_CTL_MSB_DATA_ENTRY       = 0x06,  /**< Data Entry */
+	LV2_MIDI_CTL_MSB_MAIN_VOLUME      = 0x07,  /**< Main Volume */
+	LV2_MIDI_CTL_MSB_BALANCE          = 0x08,  /**< Balance */
+	LV2_MIDI_CTL_MSB_PAN              = 0x0A,  /**< Panpot */
+	LV2_MIDI_CTL_MSB_EXPRESSION       = 0x0B,  /**< Expression */
+	LV2_MIDI_CTL_MSB_EFFECT1          = 0x0C,  /**< Effect1 */
+	LV2_MIDI_CTL_MSB_EFFECT2          = 0x0D,  /**< Effect2 */
+	LV2_MIDI_CTL_MSB_GENERAL_PURPOSE1 = 0x10,  /**< General Purpose 1 */
+	LV2_MIDI_CTL_MSB_GENERAL_PURPOSE2 = 0x11,  /**< General Purpose 2 */
+	LV2_MIDI_CTL_MSB_GENERAL_PURPOSE3 = 0x12,  /**< General Purpose 3 */
+	LV2_MIDI_CTL_MSB_GENERAL_PURPOSE4 = 0x13,  /**< General Purpose 4 */
+	LV2_MIDI_CTL_LSB_BANK             = 0x20,  /**< Bank Selection */
+	LV2_MIDI_CTL_LSB_MODWHEEL         = 0x21,  /**< Modulation */
+	LV2_MIDI_CTL_LSB_BREATH           = 0x22,  /**< Breath */
+	LV2_MIDI_CTL_LSB_FOOT             = 0x24,  /**< Foot */
+	LV2_MIDI_CTL_LSB_PORTAMENTO_TIME  = 0x25,  /**< Portamento Time */
+	LV2_MIDI_CTL_LSB_DATA_ENTRY       = 0x26,  /**< Data Entry */
+	LV2_MIDI_CTL_LSB_MAIN_VOLUME      = 0x27,  /**< Main Volume */
+	LV2_MIDI_CTL_LSB_BALANCE          = 0x28,  /**< Balance */
+	LV2_MIDI_CTL_LSB_PAN              = 0x2A,  /**< Panpot */
+	LV2_MIDI_CTL_LSB_EXPRESSION       = 0x2B,  /**< Expression */
+	LV2_MIDI_CTL_LSB_EFFECT1          = 0x2C,  /**< Effect1 */
+	LV2_MIDI_CTL_LSB_EFFECT2          = 0x2D,  /**< Effect2 */
+	LV2_MIDI_CTL_LSB_GENERAL_PURPOSE1 = 0x30,  /**< General Purpose 1 */
+	LV2_MIDI_CTL_LSB_GENERAL_PURPOSE2 = 0x31,  /**< General Purpose 2 */
+	LV2_MIDI_CTL_LSB_GENERAL_PURPOSE3 = 0x32,  /**< General Purpose 3 */
+	LV2_MIDI_CTL_LSB_GENERAL_PURPOSE4 = 0x33,  /**< General Purpose 4 */
+	LV2_MIDI_CTL_SUSTAIN              = 0x40,  /**< Sustain Pedal */
+	LV2_MIDI_CTL_PORTAMENTO           = 0x41,  /**< Portamento */
+	LV2_MIDI_CTL_SOSTENUTO            = 0x42,  /**< Sostenuto */
+	LV2_MIDI_CTL_SOFT_PEDAL           = 0x43,  /**< Soft Pedal */
+	LV2_MIDI_CTL_LEGATO_FOOTSWITCH    = 0x44,  /**< Legato Foot Switch */
+	LV2_MIDI_CTL_HOLD2                = 0x45,  /**< Hold2 */
+	LV2_MIDI_CTL_SC1_SOUND_VARIATION  = 0x46,  /**< SC1 Sound Variation */
+	LV2_MIDI_CTL_SC2_TIMBRE           = 0x47,  /**< SC2 Timbre */
+	LV2_MIDI_CTL_SC3_RELEASE_TIME     = 0x48,  /**< SC3 Release Time */
+	LV2_MIDI_CTL_SC4_ATTACK_TIME      = 0x49,  /**< SC4 Attack Time */
+	LV2_MIDI_CTL_SC5_BRIGHTNESS       = 0x4A,  /**< SC5 Brightness */
+	LV2_MIDI_CTL_SC6                  = 0x4B,  /**< SC6 */
+	LV2_MIDI_CTL_SC7                  = 0x4C,  /**< SC7 */
+	LV2_MIDI_CTL_SC8                  = 0x4D,  /**< SC8 */
+	LV2_MIDI_CTL_SC9                  = 0x4E,  /**< SC9 */
+	LV2_MIDI_CTL_SC10                 = 0x4F,  /**< SC10 */
+	LV2_MIDI_CTL_GENERAL_PURPOSE5     = 0x50,  /**< General Purpose 5 */
+	LV2_MIDI_CTL_GENERAL_PURPOSE6     = 0x51,  /**< General Purpose 6 */
+	LV2_MIDI_CTL_GENERAL_PURPOSE7     = 0x52,  /**< General Purpose 7 */
+	LV2_MIDI_CTL_GENERAL_PURPOSE8     = 0x53,  /**< General Purpose 8 */
+	LV2_MIDI_CTL_PORTAMENTO_CONTROL   = 0x54,  /**< Portamento Control */
+	LV2_MIDI_CTL_E1_REVERB_DEPTH      = 0x5B,  /**< E1 Reverb Depth */
+	LV2_MIDI_CTL_E2_TREMOLO_DEPTH     = 0x5C,  /**< E2 Tremolo Depth */
+	LV2_MIDI_CTL_E3_CHORUS_DEPTH      = 0x5D,  /**< E3 Chorus Depth */
+	LV2_MIDI_CTL_E4_DETUNE_DEPTH      = 0x5E,  /**< E4 Detune Depth */
+	LV2_MIDI_CTL_E5_PHASER_DEPTH      = 0x5F,  /**< E5 Phaser Depth */
+	LV2_MIDI_CTL_DATA_INCREMENT       = 0x60,  /**< Data Increment */
+	LV2_MIDI_CTL_DATA_DECREMENT       = 0x61,  /**< Data Decrement */
+	LV2_MIDI_CTL_NRPN_LSB             = 0x62,  /**< Non-registered Parameter Number */
+	LV2_MIDI_CTL_NRPN_MSB             = 0x63,  /**< Non-registered Parameter Number */
+	LV2_MIDI_CTL_RPN_LSB              = 0x64,  /**< Registered Parameter Number */
+	LV2_MIDI_CTL_RPN_MSB              = 0x65,  /**< Registered Parameter Number */
+	LV2_MIDI_CTL_ALL_SOUNDS_OFF       = 0x78,  /**< All Sounds Off */
+	LV2_MIDI_CTL_RESET_CONTROLLERS    = 0x79,  /**< Reset Controllers */
+	LV2_MIDI_CTL_LOCAL_CONTROL_SWITCH = 0x7A,  /**< Local Control Switch */
+	LV2_MIDI_CTL_ALL_NOTES_OFF        = 0x7B,  /**< All Notes Off */
+	LV2_MIDI_CTL_OMNI_OFF             = 0x7C,  /**< Omni Off */
+	LV2_MIDI_CTL_OMNI_ON              = 0x7D,  /**< Omni On */
+	LV2_MIDI_CTL_MONO1                = 0x7E,  /**< Mono1 */
+	LV2_MIDI_CTL_MONO2                = 0x7F   /**< Mono2 */
+} LV2_Midi_Controller;
+
+/**
+   Return true iff @p msg is a MIDI voice message (which has a channel).
+*/
+static inline bool
+lv2_midi_is_voice_message(const uint8_t* msg) {
+	return msg[0] >= 0x80 && msg[0] < 0xF0;
+}
+
+/**
+   Return true iff @p msg is a MIDI system message (which has no channel).
+*/
+static inline bool
+lv2_midi_is_system_message(const uint8_t* msg) {
+	switch (msg[0]) {
+	case 0xF4: case 0xF5: case 0xF7: case 0xF9: case 0xFD:
+		return false;
+	default:
+		return (msg[0] & 0xF0) == 0xF0;
+	}
+}
+
+/**
+   Return the type of a MIDI message.
+   @param msg Pointer to the start (status byte) of a MIDI message.
+*/
+static inline LV2_Midi_Message_Type
+lv2_midi_message_type(const uint8_t* msg) {
+	if (lv2_midi_is_voice_message(msg)) {
+		return (LV2_Midi_Message_Type)(msg[0] & 0xF0);
+	} else if (lv2_midi_is_system_message(msg)) {
+		return (LV2_Midi_Message_Type)msg[0];
+	} else {
+		return LV2_MIDI_MSG_INVALID;
+	}
+}
+
+#ifdef __cplusplus
+}  /* extern "C" */
+#endif
+
+#endif  /* LV2_MIDI_H */

distrho/src/lv2/morph.h

@@ -0,0 +1,34 @@
+/*
+  Copyright 2012 David Robillard <http://drobilla.net>
+
+  Permission to use, copy, modify, and/or distribute this software for any
+  purpose with or without fee is hereby granted, provided that the above
+  copyright notice and this permission notice appear in all copies.
+
+  THIS SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+  WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+  MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+  ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+  WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+  ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+  OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+*/
+
+#ifndef LV2_MORPH_H
+#define LV2_MORPH_H
+
+#include <stdint.h>
+
+#include "lv2/lv2plug.in/ns/lv2core/lv2.h"
+#include "lv2/lv2plug.in/ns/ext/urid/urid.h"
+
+#define LV2_MORPH_URI    "http://lv2plug.in/ns/ext/morph"
+#define LV2_MORPH_PREFIX LV2_MORPH_URI "#"
+
+#define LV2_MORPH__AutoMorphPort LV2_MORPH_PREFIX "AutoMorphPort"
+#define LV2_MORPH__MorphPort     LV2_MORPH_PREFIX "MorphPort"
+#define LV2_MORPH__interface     LV2_MORPH_PREFIX "interface"
+#define LV2_MORPH__supportsType  LV2_MORPH_PREFIX "supportsType"
+#define LV2_MORPH__currentType   LV2_MORPH_PREFIX "currentType"
+
+#endif  /* LV2_MORPH_H */

distrho/src/lv2/options.h

@@ -0,0 +1,132 @@
+/*
+  Copyright 2012 David Robillard <http://drobilla.net>
+
+  Permission to use, copy, modify, and/or distribute this software for any
+  purpose with or without fee is hereby granted, provided that the above
+  copyright notice and this permission notice appear in all copies.
+
+  THIS SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+  WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+  MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+  ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+  WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+  ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+  OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+*/
+
+#ifndef LV2_OPTIONS_H
+#define LV2_OPTIONS_H
+
+#include <stdint.h>
+
+#include "urid.h"
+#include "lv2.h"
+
+#define LV2_OPTIONS_URI    "http://lv2plug.in/ns/ext/options"
+#define LV2_OPTIONS_PREFIX LV2_OPTIONS_URI "#"
+
+#define LV2_OPTIONS__Option          LV2_OPTIONS_PREFIX "Option"
+#define LV2_OPTIONS__interface       LV2_OPTIONS_PREFIX "interface"
+#define LV2_OPTIONS__options         LV2_OPTIONS_PREFIX "options"
+#define LV2_OPTIONS__requiredOption  LV2_OPTIONS_PREFIX "requiredOption"
+#define LV2_OPTIONS__supportedOption LV2_OPTIONS_PREFIX "supportedOption"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+   The context of an Option, which defines the subject it applies to.
+*/
+typedef enum {
+	/**
+	   This option applies to the instance itself.  The subject must be
+	   ignored.
+	*/
+	LV2_OPTIONS_INSTANCE,
+
+	/**
+	   This option applies to some named resource.  The subject is a URI mapped
+	   to an integer (a LV2_URID, like the key)
+	*/
+	LV2_OPTIONS_RESOURCE,
+
+	/**
+	   This option applies to some blank node.  The subject is a blank node
+	   identifier, which is valid only within the current local scope.
+	*/
+	LV2_OPTIONS_BLANK,
+
+	/**
+	   This option applies to a port on the instance.  The subject is the
+	   port's index.
+	*/
+	LV2_OPTIONS_PORT
+} LV2_Options_Context;
+
+/**
+   An option.
+
+   This is a property with a subject, also known as a triple or statement.
+
+   This struct is useful anywhere a statement needs to be passed where no
+   memory ownership issues are present (since the value is a const pointer).
+
+   Options can be passed to an instance via the feature LV2_OPTIONS__options
+   with data pointed to an array of options terminated by a zeroed option, or
+   accessed/manipulated using LV2_Options_Interface.
+*/
+typedef struct _LV2_Options_Option {
+	LV2_Options_Context context;  /**< Context (type of subject). */
+	uint32_t            subject;  /**< Subject. */
+	LV2_URID            key;      /**< Key (property). */
+	uint32_t            size;     /**< Size of value in bytes. */
+	LV2_URID            type;     /**< Type of value (datatype). */
+	const void*         value;    /**< Pointer to value (object). */
+} LV2_Options_Option;
+
+/** A status code for option functions. */
+typedef enum {
+	LV2_OPTIONS_SUCCESS         = 0,       /**< Completed successfully. */
+	LV2_OPTIONS_ERR_UNKNOWN     = 1,       /**< Unknown error. */
+	LV2_OPTIONS_ERR_BAD_SUBJECT = 1 << 1,  /**< Invalid/unsupported subject. */
+	LV2_OPTIONS_ERR_BAD_KEY     = 1 << 2,  /**< Invalid/unsupported key. */
+	LV2_OPTIONS_ERR_BAD_VALUE   = 1 << 3   /**< Invalid/unsupported value. */
+} LV2_Options_Status;
+
+/**
+   Interface for dynamically setting options (LV2_OPTIONS__interface).
+*/
+typedef struct _LV2_Options_Interface {
+	/**
+	   Get the given options.
+
+	   Each element of the passed options array MUST have type, subject, and
+	   key set.  All other fields (size, type, value) MUST be initialised to
+	   zero, and are set to the option value if such an option is found.
+
+	   This function is in the "instantiation" LV2 threading class, so no other
+	   instance functions may be called concurrently.
+
+	   @return Bitwise OR of LV2_Options_Status values.
+	*/
+	uint32_t (*get)(LV2_Handle          instance,
+	                LV2_Options_Option* options);
+
+	/**
+	   Set the given options.
+
+	   This function is in the "instantiation" LV2 threading class, so no other
+	   instance functions may be called concurrently.
+
+	   @return Bitwise OR of LV2_Options_Status values.
+	*/
+	uint32_t (*set)(LV2_Handle                instance,
+	                const LV2_Options_Option* options);
+} LV2_Options_Interface;
+
+#ifdef __cplusplus
+}  /* extern "C" */
+#endif
+
+#endif  /* LV2_OPTIONS_H */

distrho/src/lv2/parameters.h

@@ -0,0 +1,49 @@
+/*
+  Copyright 2012 David Robillard <http://drobilla.net>
+
+  Permission to use, copy, modify, and/or distribute this software for any
+  purpose with or without fee is hereby granted, provided that the above
+  copyright notice and this permission notice appear in all copies.
+
+  THIS SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+  WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+  MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+  ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+  WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+  ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+  OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+*/
+
+#ifndef LV2_PARAMETERS_H
+#define LV2_PARAMETERS_H
+
+#define LV2_PARAMETERS_URI    "http://lv2plug.in/ns/ext/parameters"
+#define LV2_PARAMETERS_PREFIX LV2_PARAMETERS_URI "#"
+
+#define LV2_PARAMETERS__CompressorControls LV2_PARAMETERS_PREFIX "CompressorControls"
+#define LV2_PARAMETERS__ControlGroup       LV2_PARAMETERS_PREFIX "ControlGroup"
+#define LV2_PARAMETERS__EnvelopeControls   LV2_PARAMETERS_PREFIX "EnvelopeControls"
+#define LV2_PARAMETERS__FilterControls     LV2_PARAMETERS_PREFIX "FilterControls"
+#define LV2_PARAMETERS__OscillatorControls LV2_PARAMETERS_PREFIX "OscillatorControls"
+#define LV2_PARAMETERS__amplitude          LV2_PARAMETERS_PREFIX "amplitude"
+#define LV2_PARAMETERS__attack             LV2_PARAMETERS_PREFIX "attack"
+#define LV2_PARAMETERS__bypass             LV2_PARAMETERS_PREFIX "bypass"
+#define LV2_PARAMETERS__cutoffFrequency    LV2_PARAMETERS_PREFIX "cutoffFrequency"
+#define LV2_PARAMETERS__decay              LV2_PARAMETERS_PREFIX "decay"
+#define LV2_PARAMETERS__delay              LV2_PARAMETERS_PREFIX "delay"
+#define LV2_PARAMETERS__dryLevel           LV2_PARAMETERS_PREFIX "dryLevel"
+#define LV2_PARAMETERS__frequency          LV2_PARAMETERS_PREFIX "frequency"
+#define LV2_PARAMETERS__gain               LV2_PARAMETERS_PREFIX "gain"
+#define LV2_PARAMETERS__hold               LV2_PARAMETERS_PREFIX "hold"
+#define LV2_PARAMETERS__pulseWidth         LV2_PARAMETERS_PREFIX "pulseWidth"
+#define LV2_PARAMETERS__ratio              LV2_PARAMETERS_PREFIX "ratio"
+#define LV2_PARAMETERS__release            LV2_PARAMETERS_PREFIX "release"
+#define LV2_PARAMETERS__resonance          LV2_PARAMETERS_PREFIX "resonance"
+#define LV2_PARAMETERS__sampleRate         LV2_PARAMETERS_PREFIX "sampleRate"
+#define LV2_PARAMETERS__sustain            LV2_PARAMETERS_PREFIX "sustain"
+#define LV2_PARAMETERS__threshold          LV2_PARAMETERS_PREFIX "threshold"
+#define LV2_PARAMETERS__waveform           LV2_PARAMETERS_PREFIX "waveform"
+#define LV2_PARAMETERS__wetDryRatio        LV2_PARAMETERS_PREFIX "wetDryRatio"
+#define LV2_PARAMETERS__wetLevel           LV2_PARAMETERS_PREFIX "wetLevel"
+
+#endif  /* LV2_PARAMETERS_H */

distrho/src/lv2/patch.h

@@ -0,0 +1,55 @@
+/*
+  Copyright 2012 David Robillard <http://drobilla.net>
+
+  Permission to use, copy, modify, and/or distribute this software for any
+  purpose with or without fee is hereby granted, provided that the above
+  copyright notice and this permission notice appear in all copies.
+
+  THIS SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+  WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+  MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+  ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+  WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+  ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+  OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+*/
+
+/**
+   @file patch.h C header for the LV2 Patch extension
+   <http://lv2plug.in/ns/ext/patch>.
+
+   The patch extension is purely data, this header merely defines URIs
+   for convenience.
+*/
+
+#ifndef LV2_PATCH_H
+#define LV2_PATCH_H
+
+#define LV2_PATCH_URI    "http://lv2plug.in/ns/ext/patch"
+#define LV2_PATCH_PREFIX LV2_PATCH_URI "#"
+
+#define LV2_PATCH__Ack         LV2_PATCH_PREFIX "Ack"
+#define LV2_PATCH__Delete      LV2_PATCH_PREFIX "Delete"
+#define LV2_PATCH__Error       LV2_PATCH_PREFIX "Error"
+#define LV2_PATCH__Get         LV2_PATCH_PREFIX "Get"
+#define LV2_PATCH__Message     LV2_PATCH_PREFIX "Message"
+#define LV2_PATCH__Move        LV2_PATCH_PREFIX "Move"
+#define LV2_PATCH__Patch       LV2_PATCH_PREFIX "Patch"
+#define LV2_PATCH__Post        LV2_PATCH_PREFIX "Post"
+#define LV2_PATCH__Put         LV2_PATCH_PREFIX "Put"
+#define LV2_PATCH__Request     LV2_PATCH_PREFIX "Request"
+#define LV2_PATCH__Response    LV2_PATCH_PREFIX "Response"
+#define LV2_PATCH__Set         LV2_PATCH_PREFIX "Set"
+#define LV2_PATCH__add         LV2_PATCH_PREFIX "add"
+#define LV2_PATCH__body        LV2_PATCH_PREFIX "body"
+#define LV2_PATCH__destination LV2_PATCH_PREFIX "destination"
+#define LV2_PATCH__property    LV2_PATCH_PREFIX "property"
+#define LV2_PATCH__readable    LV2_PATCH_PREFIX "readable"
+#define LV2_PATCH__remove      LV2_PATCH_PREFIX "remove"
+#define LV2_PATCH__request     LV2_PATCH_PREFIX "request"
+#define LV2_PATCH__subject     LV2_PATCH_PREFIX "subject"
+#define LV2_PATCH__value       LV2_PATCH_PREFIX "value"
+#define LV2_PATCH__wildcard    LV2_PATCH_PREFIX "wildcard"
+#define LV2_PATCH__writable    LV2_PATCH_PREFIX "writable"
+
+#endif  /* LV2_PATCH_H */

distrho/src/lv2/port-groups.h

@@ -0,0 +1,64 @@
+/*
+  Copyright 2012 David Robillard <http://drobilla.net>
+
+  Permission to use, copy, modify, and/or distribute this software for any
+  purpose with or without fee is hereby granted, provided that the above
+  copyright notice and this permission notice appear in all copies.
+
+  THIS SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+  WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+  MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+  ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+  WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+  ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+  OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+*/
+
+/**
+   @file port-groups.h
+   C definitions for the LV2 Port Groups extension
+   <http://lv2plug.in/ns/ext/port-groups>.
+*/
+
+#ifndef LV2_PORT_GROUPS_H
+#define LV2_PORT_GROUPS_H
+
+#define LV2_PORT_GROUPS_URI    "http://lv2plug.in/ns/ext/port-groups"
+#define LV2_PORT_GROUPS_PREFIX LV2_PORT_GROUPS_URI "#"
+
+#define LV2_PORT_GROUPS__DiscreteGroup          LV2_PORT_GROUPS_PREFIX "DiscreteGroup"
+#define LV2_PORT_GROUPS__Element                LV2_PORT_GROUPS_PREFIX "Element"
+#define LV2_PORT_GROUPS__FivePointOneGroup      LV2_PORT_GROUPS_PREFIX "FivePointOneGroup"
+#define LV2_PORT_GROUPS__FivePointZeroGroup     LV2_PORT_GROUPS_PREFIX "FivePointZeroGroup"
+#define LV2_PORT_GROUPS__FourPointZeroGroup     LV2_PORT_GROUPS_PREFIX "FourPointZeroGroup"
+#define LV2_PORT_GROUPS__Group                  LV2_PORT_GROUPS_PREFIX "Group"
+#define LV2_PORT_GROUPS__InputGroup             LV2_PORT_GROUPS_PREFIX "InputGroup"
+#define LV2_PORT_GROUPS__MidSideGroup           LV2_PORT_GROUPS_PREFIX "MidSideGroup"
+#define LV2_PORT_GROUPS__MonoGroup              LV2_PORT_GROUPS_PREFIX "MonoGroup"
+#define LV2_PORT_GROUPS__OutputGroup            LV2_PORT_GROUPS_PREFIX "OutputGroup"
+#define LV2_PORT_GROUPS__SevenPointOneGroup     LV2_PORT_GROUPS_PREFIX "SevenPointOneGroup"
+#define LV2_PORT_GROUPS__SevenPointOneWideGroup LV2_PORT_GROUPS_PREFIX "SevenPointOneWideGroup"
+#define LV2_PORT_GROUPS__SixPointOneGroup       LV2_PORT_GROUPS_PREFIX "SixPointOneGroup"
+#define LV2_PORT_GROUPS__StereoGroup            LV2_PORT_GROUPS_PREFIX "StereoGroup"
+#define LV2_PORT_GROUPS__ThreePointZeroGroup    LV2_PORT_GROUPS_PREFIX "ThreePointZeroGroup"
+#define LV2_PORT_GROUPS__center                 LV2_PORT_GROUPS_PREFIX "center"
+#define LV2_PORT_GROUPS__centerLeft             LV2_PORT_GROUPS_PREFIX "centerLeft"
+#define LV2_PORT_GROUPS__centerRight            LV2_PORT_GROUPS_PREFIX "centerRight"
+#define LV2_PORT_GROUPS__element                LV2_PORT_GROUPS_PREFIX "element"
+#define LV2_PORT_GROUPS__group                  LV2_PORT_GROUPS_PREFIX "group"
+#define LV2_PORT_GROUPS__left                   LV2_PORT_GROUPS_PREFIX "left"
+#define LV2_PORT_GROUPS__lowFrequencyEffects    LV2_PORT_GROUPS_PREFIX "lowFrequencyEffects"
+#define LV2_PORT_GROUPS__mainInput              LV2_PORT_GROUPS_PREFIX "mainInput"
+#define LV2_PORT_GROUPS__mainOutput             LV2_PORT_GROUPS_PREFIX "mainOutput"
+#define LV2_PORT_GROUPS__rearCenter             LV2_PORT_GROUPS_PREFIX "rearCenter"
+#define LV2_PORT_GROUPS__rearLeft               LV2_PORT_GROUPS_PREFIX "rearLeft"
+#define LV2_PORT_GROUPS__rearRight              LV2_PORT_GROUPS_PREFIX "rearRight"
+#define LV2_PORT_GROUPS__right                  LV2_PORT_GROUPS_PREFIX "right"
+#define LV2_PORT_GROUPS__side                   LV2_PORT_GROUPS_PREFIX "side"
+#define LV2_PORT_GROUPS__sideChainOf            LV2_PORT_GROUPS_PREFIX "sideChainOf"
+#define LV2_PORT_GROUPS__sideLeft               LV2_PORT_GROUPS_PREFIX "sideLeft"
+#define LV2_PORT_GROUPS__sideRight              LV2_PORT_GROUPS_PREFIX "sideRight"
+#define LV2_PORT_GROUPS__source                 LV2_PORT_GROUPS_PREFIX "source"
+#define LV2_PORT_GROUPS__subGroupOf             LV2_PORT_GROUPS_PREFIX "subGroupOf"
+
+#endif  /* LV2_PORT_GROUPS_H */

distrho/src/lv2/port-props.h

@@ -0,0 +1,42 @@
+/*
+  Copyright 2012 David Robillard <http://drobilla.net>
+
+  Permission to use, copy, modify, and/or distribute this software for any
+  purpose with or without fee is hereby granted, provided that the above
+  copyright notice and this permission notice appear in all copies.
+
+  THIS SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+  WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+  MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+  ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+  WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+  ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+  OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+*/
+
+/**
+   @file port-props.h
+   C definitions for the LV2 Port Props extension
+   <http://lv2plug.in/ns/ext/port-props>.
+*/
+
+#ifndef LV2_PORT_PROPS_H
+#define LV2_PORT_PROPS_H
+
+#define LV2_PORT_PROPS_URI    "http://lv2plug.in/ns/ext/port-props"
+#define LV2_PORT_PROPS_PREFIX LV2_PORT_PROPS_URI "#"
+
+#define LV2_PORT_PROPS__causesArtifacts      LV2_PORT_PROPS_PREFIX "causesArtifacts"
+#define LV2_PORT_PROPS__continuousCV         LV2_PORT_PROPS_PREFIX "continuousCV"
+#define LV2_PORT_PROPS__discreteCV           LV2_PORT_PROPS_PREFIX "discreteCV"
+#define LV2_PORT_PROPS__displayPriority      LV2_PORT_PROPS_PREFIX "displayPriority"
+#define LV2_PORT_PROPS__expensive            LV2_PORT_PROPS_PREFIX "expensive"
+#define LV2_PORT_PROPS__hasStrictBounds      LV2_PORT_PROPS_PREFIX "hasStrictBounds"
+#define LV2_PORT_PROPS__logarithmic          LV2_PORT_PROPS_PREFIX "logarithmic"
+#define LV2_PORT_PROPS__notAutomatic         LV2_PORT_PROPS_PREFIX "notAutomatic"
+#define LV2_PORT_PROPS__notOnGUI             LV2_PORT_PROPS_PREFIX "notOnGUI"
+#define LV2_PORT_PROPS__rangeSteps           LV2_PORT_PROPS_PREFIX "rangeSteps"
+#define LV2_PORT_PROPS__supportsStrictBounds LV2_PORT_PROPS_PREFIX "supportsStrictBounds"
+#define LV2_PORT_PROPS__trigger              LV2_PORT_PROPS_PREFIX "trigger"
+
+#endif  /* LV2_PORT_PROPS_H */

distrho/src/lv2/presets.h

@@ -0,0 +1,34 @@
+/*
+  Copyright 2012 David Robillard <http://drobilla.net>
+
+  Permission to use, copy, modify, and/or distribute this software for any
+  purpose with or without fee is hereby granted, provided that the above
+  copyright notice and this permission notice appear in all copies.
+
+  THIS SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+  WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+  MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+  ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+  WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+  ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+  OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+*/
+
+/**
+   @file presets.h
+
+   C definitions for the LV2 Presets extension
+   <http://lv2plug.in/ns/ext/presets>.
+*/
+
+#ifndef LV2_PRESETS_H
+#define LV2_PRESETS_H
+
+#define LV2_PRESETS_URI    "http://lv2plug.in/ns/ext/presets"
+#define LV2_PRESETS_PREFIX LV2_PRESETS_URI "#"
+
+#define LV2_PRESETS__Preset LV2_PRESETS_PREFIX "Preset"
+#define LV2_PRESETS__preset LV2_PRESETS_PREFIX "preset"
+#define LV2_PRESETS__value  LV2_PRESETS_PREFIX "value"
+
+#endif  /* LV2_PRESETS_H */

distrho/src/lv2/resize-port.h

@@ -0,0 +1,72 @@
+/*
+  Copyright 2007-2012 David Robillard <http://drobilla.net>
+
+  Permission to use, copy, modify, and/or distribute this software for any
+  purpose with or without fee is hereby granted, provided that the above
+  copyright notice and this permission notice appear in all copies.
+
+  THIS SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+  WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+  MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+  ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+  WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+  ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+  OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+*/
+
+#ifndef LV2_RESIZE_PORT_H
+#define LV2_RESIZE_PORT_H
+
+#include <stddef.h>
+#include <stdint.h>
+
+#define LV2_RESIZE_PORT_URI    "http://lv2plug.in/ns/ext/resize-port"
+#define LV2_RESIZE_PORT_PREFIX LV2_RESIZE_PORT_URI "#"
+
+#define LV2_RESIZE_PORT__asLargeAs   LV2_RESIZE_PORT_PREFIX "asLargeAs"
+#define LV2_RESIZE_PORT__minimumSize LV2_RESIZE_PORT_PREFIX "minimumSize"
+#define LV2_RESIZE_PORT__resize      LV2_RESIZE_PORT_PREFIX "resize"
+
+#ifdef __cplusplus
+extern "C" {
+#else
+#    include <stdbool.h>
+#endif
+
+/** A status code for state functions. */
+typedef enum {
+	LV2_RESIZE_PORT_SUCCESS      = 0,  /**< Completed successfully. */
+	LV2_RESIZE_PORT_ERR_UNKNOWN  = 1,  /**< Unknown error. */
+	LV2_RESIZE_PORT_ERR_NO_SPACE = 2   /**< Insufficient space. */
+} LV2_Resize_Port_Status;
+
+typedef void* LV2_Resize_Port_Feature_Data;
+
+typedef struct {
+	LV2_Resize_Port_Feature_Data data;
+
+	/**
+	   Resize a port buffer to at least @a size bytes.
+	 
+	   This function MAY return an error, in which case the port buffer was not
+	   resized and the port is still connected to the same location.  Plugins
+	   MUST gracefully handle this situation.
+	 
+	   This function is in the audio threading class.
+	 
+	   The host MUST preserve the contents of the port buffer when resizing.
+	 
+	   Plugins MAY resize a port many times in a single run callback.  Hosts
+	   SHOULD make this as inexpensive as possible.
+	*/
+	LV2_Resize_Port_Status (*resize)(LV2_Resize_Port_Feature_Data data,
+	                                 uint32_t                     index,
+	                                 size_t                       size);
+} LV2_Resize_Port_Resize;
+
+#ifdef __cplusplus
+}  /* extern "C" */
+#endif
+
+#endif  /* LV2_RESIZE_PORT_H */
+

distrho/src/lv2/state.h

@@ -0,0 +1,352 @@
+/*
+  Copyright 2010-2012 David Robillard <http://drobilla.net>
+  Copyright 2010 Leonard Ritter <paniq@paniq.org>
+
+  Permission to use, copy, modify, and/or distribute this software for any
+  purpose with or without fee is hereby granted, provided that the above
+  copyright notice and this permission notice appear in all copies.
+
+  THIS SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+  WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+  MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+  ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+  WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+  ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+  OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+*/
+
+/**
+   @file state.h
+   C API for the LV2 State extension <http://lv2plug.in/ns/ext/state>.
+*/
+
+#ifndef LV2_STATE_H
+#define LV2_STATE_H
+
+#include <stddef.h>
+#include <stdint.h>
+
+#include "lv2.h"
+
+#define LV2_STATE_URI    "http://lv2plug.in/ns/ext/state"
+#define LV2_STATE_PREFIX LV2_STATE_URI "#"
+
+#define LV2_STATE__State            LV2_STATE_PREFIX "State"
+#define LV2_STATE__interface        LV2_STATE_PREFIX "interface"
+#define LV2_STATE__loadDefaultState LV2_STATE_PREFIX "loadDefaultState"
+#define LV2_STATE__makePath         LV2_STATE_PREFIX "makePath"
+#define LV2_STATE__mapPath          LV2_STATE_PREFIX "mapPath"
+#define LV2_STATE__state            LV2_STATE_PREFIX "state"
+
+#ifdef __cplusplus
+extern "C" {
+#else
+#    include <stdbool.h>
+#endif
+
+typedef void* LV2_State_Handle;
+typedef void* LV2_State_Map_Path_Handle;
+typedef void* LV2_State_Make_Path_Handle;
+
+/**
+   Flags describing value characteristics.
+
+   These flags are used along with the value's type URI to determine how to
+   (de-)serialise the value data, or whether it is even possible to do so.
+*/
+typedef enum {
+	/**
+	   Plain Old Data.
+
+	   Values with this flag contain no pointers or references to other areas
+	   of memory.  It is safe to copy POD values with a simple memcpy and store
+	   them for the duration of the process.  A POD value is not necessarily
+	   safe to trasmit between processes or machines (e.g. filenames are POD),
+	   see LV2_STATE_IS_PORTABLE for details.
+
+	   Implementations MUST NOT attempt to copy or serialise a non-POD value if
+	   they do not understand its type (and thus know how to correctly do so).
+	*/
+	LV2_STATE_IS_POD = 1,
+
+	/**
+	   Portable (architecture independent) data.
+
+	   Values with this flag are in a format that is usable on any
+	   architecture.  A portable value saved on one machine can be restored on
+	   another machine regardless of architecture.  The format of portable
+	   values MUST NOT depend on architecture-specific properties like
+	   endianness or alignment.  Portable values MUST NOT contain filenames.
+	*/
+	LV2_STATE_IS_PORTABLE = 1 << 1,
+
+	/**
+	   Native data.
+
+	   This flag is used by the host to indicate that the saved data is only
+	   going to be used locally in the currently running process (e.g. for
+	   instance duplication or snapshots), so the plugin should use the most
+	   efficient representation possible and not worry about serialisation
+	   and portability.
+	*/
+	LV2_STATE_IS_NATIVE = 1 << 2
+} LV2_State_Flags;
+
+/** A status code for state functions. */
+typedef enum {
+	LV2_STATE_SUCCESS         = 0,  /**< Completed successfully. */
+	LV2_STATE_ERR_UNKNOWN     = 1,  /**< Unknown error. */
+	LV2_STATE_ERR_BAD_TYPE    = 2,  /**< Failed due to unsupported type. */
+	LV2_STATE_ERR_BAD_FLAGS   = 3,  /**< Failed due to unsupported flags. */
+	LV2_STATE_ERR_NO_FEATURE  = 4,  /**< Failed due to missing features. */
+	LV2_STATE_ERR_NO_PROPERTY = 5   /**< Failed due to missing property. */
+} LV2_State_Status;
+
+/**
+   A host-provided function to store a property.
+   @param handle Must be the handle passed to LV2_State_Interface.save().
+   @param key The key to store @p value under (URID).
+   @param value Pointer to the value to be stored.
+   @param size The size of @p value in bytes.
+   @param type The type of @p value (URID).
+   @param flags LV2_State_Flags for @p value.
+   @return 0 on success, otherwise a non-zero error code.
+
+   The host passes a callback of this type to LV2_State_Interface.save(). This
+   callback is called repeatedly by the plugin to store all the properties that
+   describe its current state.
+
+   DO NOT INVENT NONSENSE URI SCHEMES FOR THE KEY.  Best is to use keys from
+   existing vocabularies.  If nothing appropriate is available, use http URIs
+   that point to somewhere you can host documents so documentation can be made
+   resolvable (e.g. a child of the plugin or project URI).  If this is not
+   possible, invent a URN scheme, e.g. urn:myproj:whatever.  The plugin MUST
+   NOT pass an invalid URI key.
+
+   The host MAY fail to store a property for whatever reason, but SHOULD
+   store any property that is LV2_STATE_IS_POD and LV2_STATE_IS_PORTABLE.
+   Implementations SHOULD use the types from the LV2 Atom extension
+   (http://lv2plug.in/ns/ext/atom) wherever possible.  The plugin SHOULD
+   attempt to fall-back and avoid the error if possible.
+
+   Note that @p size MUST be > 0, and @p value MUST point to a valid region of
+   memory @p size bytes long (this is required to make restore unambiguous).
+
+   The plugin MUST NOT attempt to use this function outside of the
+   LV2_State_Interface.restore() context.
+*/
+typedef LV2_State_Status (*LV2_State_Store_Function)(
+	LV2_State_Handle handle,
+	uint32_t         key,
+	const void*      value,
+	size_t           size,
+	uint32_t         type,
+	uint32_t         flags);
+
+/**
+   A host-provided function to retrieve a property.
+   @param handle Must be the handle passed to LV2_State_Interface.restore().
+   @param key The key of the property to retrieve (URID).
+   @param size (Output) If non-NULL, set to the size of the restored value.
+   @param type (Output) If non-NULL, set to the type of the restored value.
+   @param flags (Output) If non-NULL, set to the flags for the restored value.
+   @return A pointer to the restored value (object), or NULL if no value
+   has been stored under @p key.
+
+   A callback of this type is passed by the host to
+   LV2_State_Interface.restore().  This callback is called repeatedly by the
+   plugin to retrieve any properties it requires to restore its state.
+
+   The returned value MUST remain valid until LV2_State_Interface.restore()
+   returns.  The plugin MUST NOT attempt to use this function, or any value
+   returned from it, outside of the LV2_State_Interface.restore() context.
+*/
+typedef const void* (*LV2_State_Retrieve_Function)(
+	LV2_State_Handle handle,
+	uint32_t         key,
+	size_t*          size,
+	uint32_t*        type,
+	uint32_t*        flags);
+
+/**
+   LV2 Plugin State Interface.
+
+   When the plugin's extension_data is called with argument
+   LV2_STATE__interface, the plugin MUST return an LV2_State_Interface
+   structure, which remains valid for the lifetime of the plugin.
+
+   The host can use the contained function pointers to save and restore the
+   state of a plugin instance at any time, provided the threading restrictions
+   of the functions are met.
+
+   Stored data is only guaranteed to be compatible between instances of plugins
+   with the same URI (i.e. if a change to a plugin would cause a fatal error
+   when restoring state saved by a previous version of that plugin, the plugin
+   URI MUST change just as it must when ports change incompatibly).  Plugin
+   authors should consider this possibility, and always store sensible data
+   with meaningful types to avoid such problems in the future.
+*/
+typedef struct _LV2_State_Interface {
+	/**
+	   Save plugin state using a host-provided @p store callback.
+
+	   @param instance The instance handle of the plugin.
+	   @param store The host-provided store callback.
+	   @param handle An opaque pointer to host data which MUST be passed as the
+	   handle parameter to @p store if it is called.
+	   @param flags Flags describing desired properties of this save.  These
+	   flags may be used to determine the most appropriate values to store.
+	   @param features Extensible parameter for passing any additional
+	   features to be used for this save.
+
+	   The plugin is expected to store everything necessary to completely
+	   restore its state later.  Plugins SHOULD store simple POD data whenever
+	   possible, and consider the possibility of state being restored much
+	   later on a different machine.
+
+	   The @p handle pointer and @p store function MUST NOT be used
+	   beyond the scope of save().
+
+	   This function has its own special threading class: it may not be called
+	   concurrently with any "Instantiation" function, but it may be called
+	   concurrently with functions in any other class, unless the definition of
+	   that class prohibits it (e.g. it may not be called concurrently with a
+	   "Discovery" function, but it may be called concurrently with an "Audio"
+	   function.  The plugin is responsible for any locking or lock-free
+	   techniques necessary to make this possible.
+
+	   Note that in the simple case where state is only modified by restore(),
+	   there are no synchronization issues since save() is never called
+	   concurrently with restore() (though run() may read it during a save).
+
+	   Plugins that dynamically modify state while running, however, must take
+	   care to do so in such a way that a concurrent call to save() will save a
+	   consistent representation of plugin state for a single instant in time.
+	*/
+	LV2_State_Status (*save)(LV2_Handle                 instance,
+	                         LV2_State_Store_Function   store,
+	                         LV2_State_Handle           handle,
+	                         uint32_t                   flags,
+	                         const LV2_Feature *const * features);
+
+	/**
+	   Restore plugin state using a host-provided @p retrieve callback.
+
+	   @param instance The instance handle of the plugin.
+	   @param retrieve The host-provided retrieve callback.
+	   @param handle An opaque pointer to host data which MUST be passed as the
+	   handle parameter to @p retrieve if it is called.
+	   @param flags Currently unused.
+	   @param features Extensible parameter for passing any additional
+	   features to be used for this restore.
+
+	   The plugin MAY assume a restored value was set by a previous call to
+	   LV2_State_Interface.save() by a plugin with the same URI.
+
+	   The plugin MUST gracefully fall back to a default value when a value can
+	   not be retrieved.  This allows the host to reset the plugin state with
+	   an empty map.
+
+	   The @p handle pointer and @p store function MUST NOT be used
+	   beyond the scope of restore().
+
+	   This function is in the "Instantiation" threading class as defined by
+	   LV2. This means it MUST NOT be called concurrently with any other
+	   function on the same plugin instance.
+	*/
+	LV2_State_Status (*restore)(LV2_Handle                  instance,
+	                            LV2_State_Retrieve_Function retrieve,
+	                            LV2_State_Handle            handle,
+	                            uint32_t                    flags,
+	                            const LV2_Feature *const *  features);
+} LV2_State_Interface;
+
+/**
+   Feature data for state:mapPath (LV2_STATE__mapPath).
+*/
+typedef struct {
+	/**
+	   Opaque host data.
+	*/
+	LV2_State_Map_Path_Handle handle;
+
+	/**
+	   Map an absolute path to an abstract path for use in plugin state.
+	   @param handle MUST be the @p handle member of this struct.
+	   @param absolute_path The absolute path of a file.
+	   @return An abstract path suitable for use in plugin state.
+
+	   The plugin MUST use this function to map any paths that will be stored
+	   in plugin state.  The returned value is an abstract path which MAY not
+	   be an actual file system path; @ref absolute_path() MUST be used to map
+	   it to an actual path in order to use the file.
+
+	   Plugins MUST NOT make any assumptions about abstract paths except that
+	   they can be mapped back to the absolute path of the "same" file (though
+	   not necessarily the same original path) using @ref absolute_path().
+
+	   This function may only be called within the context of
+	   LV2_State_Interface methods.  The caller is responsible for freeing the
+	   returned value with free().
+	*/
+	char* (*abstract_path)(LV2_State_Map_Path_Handle handle,
+	                       const char*               absolute_path);
+
+	/**
+	   Map an abstract path from plugin state to an absolute path.
+	   @param handle MUST be the @p handle member of this struct.
+	   @param abstract_path An abstract path (e.g. a path from plugin state).
+	   @return An absolute file system path.
+
+	   The plugin MUST use this function in order to actually open or otherwise
+	   use any paths loaded from plugin state.
+
+	   This function may only be called within the context of
+	   LV2_State_Interface methods.  The caller is responsible for freeing the
+	   returned value with free().
+	*/
+	char* (*absolute_path)(LV2_State_Map_Path_Handle handle,
+	                       const char*               abstract_path);
+} LV2_State_Map_Path;
+
+/**
+   Feature data for state:makePath (@ref LV2_STATE__makePath).
+*/
+typedef struct {
+	/**
+	   Opaque host data.
+	*/
+	LV2_State_Make_Path_Handle handle;
+
+	/**
+	   Return a path the plugin may use to create a new file.
+	   @param handle MUST be the @p handle member of this struct.
+	   @param path The path of the new file within a namespace unique to this
+	   plugin instance.
+	   @return The absolute path to use for the new file.
+
+	   This function can be used by plugins to create files and directories,
+	   either at state saving time (if this feature is passed to
+	   LV2_State_Interface.save()) or any time (if this feature is passed to
+	   LV2_Descriptor.instantiate()).
+
+	   The host MUST do whatever is necessary for the plugin to be able to
+	   create a file at the returned path (e.g. using fopen), including
+	   creating any leading directories.
+
+	   If this function is passed to LV2_Descriptor.instantiate(), it may be
+	   called from any non-realtime context.  If it is passed to
+	   LV2_State_Interface.save(), it may only be called within the dynamic
+	   scope of that function call.
+
+	   The caller is responsible for freeing the returned value with free().
+	*/
+	char* (*path)(LV2_State_Make_Path_Handle handle,
+	              const char*                path);
+} LV2_State_Make_Path;
+
+#ifdef __cplusplus
+} /* extern "C" */
+#endif
+
+#endif /* LV2_STATE_H */

distrho/src/lv2/time.h

@@ -0,0 +1,49 @@
+/*
+  Copyright 2011 David Robillard <http://drobilla.net>
+
+  Permission to use, copy, modify, and/or distribute this software for any
+  purpose with or without fee is hereby granted, provided that the above
+  copyright notice and this permission notice appear in all copies.
+
+  THIS SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+  WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+  MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+  ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+  WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+  ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+  OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+*/
+
+/**
+   @file time.h C header for the LV2 Time extension
+   <http://lv2plug.in/ns/ext/time>.
+*/
+
+#ifndef LV2_TIME_H
+#define LV2_TIME_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define LV2_TIME_URI "http://lv2plug.in/ns/ext/time"
+
+#define LV2_TIME__Time            LV2_TIME_URI "#Time"
+#define LV2_TIME__Position        LV2_TIME_URI "#Position"
+#define LV2_TIME__Rate            LV2_TIME_URI "#Rate"
+#define LV2_TIME__position        LV2_TIME_URI "#position"
+#define LV2_TIME__barBeat         LV2_TIME_URI "#barBeat"
+#define LV2_TIME__bar             LV2_TIME_URI "#bar"
+#define LV2_TIME__beat            LV2_TIME_URI "#beat"
+#define LV2_TIME__beatUnit        LV2_TIME_URI "#beatUnit"
+#define LV2_TIME__beatsPerBar     LV2_TIME_URI "#beatsPerBar"
+#define LV2_TIME__beatsPerMinute  LV2_TIME_URI "#beatsPerMinute"
+#define LV2_TIME__frame           LV2_TIME_URI "#frame"
+#define LV2_TIME__framesPerSecond LV2_TIME_URI "#framesPerSecond"
+#define LV2_TIME__speed           LV2_TIME_URI "#speed"
+
+#ifdef __cplusplus
+}  /* extern "C" */
+#endif
+
+#endif  /* LV2_TIME_H */

distrho/src/lv2/ui.h

@@ -0,0 +1,407 @@
+/*
+  LV2 UI Extension
+  Copyright 2009-2012 David Robillard <d@drobilla.net>
+  Copyright 2006-2011 Lars Luthman <lars.luthman@gmail.com>
+
+  Permission to use, copy, modify, and/or distribute this software for any
+  purpose with or without fee is hereby granted, provided that the above
+  copyright notice and this permission notice appear in all copies.
+
+  THIS SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+  WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+  MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+  ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+  WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+  ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+  OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+*/
+
+/**
+   @file ui.h
+   C header for the LV2 UI extension <http://lv2plug.in/ns/extensions/ui>.
+*/
+
+#ifndef LV2_UI_H
+#define LV2_UI_H
+
+#include <stdint.h>
+
+#include "lv2.h"
+
+#define LV2_UI_URI    "http://lv2plug.in/ns/extensions/ui"
+#define LV2_UI_PREFIX LV2_UI_URI "#"
+
+#define LV2_UI__CocoaUI          LV2_UI_PREFIX "CocoaUI"
+#define LV2_UI__Gtk3UI           LV2_UI_PREFIX "Gtk3UI"
+#define LV2_UI__GtkUI            LV2_UI_PREFIX "GtkUI"
+#define LV2_UI__PortNotification LV2_UI_PREFIX "PortNotification"
+#define LV2_UI__Qt4UI            LV2_UI_PREFIX "Qt4UI"
+#define LV2_UI__UI               LV2_UI_PREFIX "UI"
+#define LV2_UI__WindowsUI        LV2_UI_PREFIX "WindowsUI"
+#define LV2_UI__X11UI            LV2_UI_PREFIX "X11UI"
+#define LV2_UI__binary           LV2_UI_PREFIX "binary"
+#define LV2_UI__fixedSize        LV2_UI_PREFIX "fixedSize"
+#define LV2_UI__idleInterface    LV2_UI_PREFIX "idleInterface"
+#define LV2_UI__noUserResize     LV2_UI_PREFIX "noUserResize"
+#define LV2_UI__notifyType       LV2_UI_PREFIX "notifyType"
+#define LV2_UI__parent           LV2_UI_PREFIX "parent"
+#define LV2_UI__plugin           LV2_UI_PREFIX "plugin"
+#define LV2_UI__portIndex        LV2_UI_PREFIX "portIndex"
+#define LV2_UI__portMap          LV2_UI_PREFIX "portMap"
+#define LV2_UI__portNotification LV2_UI_PREFIX "portNotification"
+#define LV2_UI__portSubscribe    LV2_UI_PREFIX "portSubscribe"
+#define LV2_UI__resize           LV2_UI_PREFIX "resize"
+#define LV2_UI__touch            LV2_UI_PREFIX "touch"
+#define LV2_UI__ui               LV2_UI_PREFIX "ui"
+
+/**
+   The index returned by LV2_UI_Port_Port::port_index() for unknown ports.
+*/
+#define LV2UI_INVALID_PORT_INDEX ((uint32_t)-1)
+
+#ifdef __cplusplus
+extern "C" {
+#else
+#    include <stdbool.h>
+#endif
+
+/**
+   A pointer to some widget or other type of UI handle.
+
+   The actual type is defined by the type of the UI.
+*/
+typedef void* LV2UI_Widget;
+
+/**
+   A pointer to an instance of a UI.
+
+   It is valid to compare this to NULL (0 for C++) but otherwise the host MUST
+   not attempt to interpret it.  The UI plugin may use it to reference internal
+   instance data.
+*/
+typedef void* LV2UI_Handle;
+
+/**
+   A pointer to a controller provided by the host.
+
+   It is valid to compare this to NULL (0 for C++) but otherwise the UI plugin
+   MUST NOT attempt to interpret it.  The host may use it to reference internal
+   instance data.
+*/
+typedef void* LV2UI_Controller;
+
+/**
+   A pointer to opaque data for a feature.
+*/
+typedef void* LV2UI_Feature_Handle;
+
+/**
+   The type of the host-provided function that the UI can use to
+   send data to a plugin's input ports.
+
+   The @p buffer parameter must point to a block of data, @c buffer_size bytes
+   large.  The format of this data and how the host should use it is defined by
+   the @p port_protocol.  This buffer is owned by the UI and is only valid for
+   the duration of this call.
+
+   The @p port_protocol parameter should either be 0 or the URID for a
+   ui:PortProtocol.  If it is 0, the protocol is implicitly ui:floatProtocol,
+   the port must be an lv2:ControlPort input, @c buffer must point to a single
+   float value, and @c buffer_size must be sizeof(float).
+
+   The UI SHOULD NOT use a PortProtocol not supported by the host (i.e. one not
+   passed by the host as a feature), but the host MUST gracefully ignore any
+   port_protocol it does not understand.
+*/
+typedef void (*LV2UI_Write_Function)(LV2UI_Controller controller,
+                                     uint32_t         port_index,
+                                     uint32_t         buffer_size,
+                                     uint32_t         port_protocol,
+                                     const void*      buffer);
+
+/**
+   The implementation of a UI.
+
+   A pointer to an object of this type is returned by the lv2ui_descriptor()
+   function.
+*/
+typedef struct _LV2UI_Descriptor {
+	/**
+	   The URI for this UI (not for the plugin it controls).
+	*/
+	const char* URI;
+
+	/**
+	   Create a new UI object and return a handle to it.  This function works
+	   similarly to the instantiate() member in LV2_Descriptor.
+
+	   @param descriptor The descriptor for the UI that you want to instantiate.
+
+	   @param plugin_uri The URI of the plugin that this UI will control.
+
+	   @param bundle_path The path to the bundle containing the RDF data file
+	   that references this shared object file, including the trailing '/'.
+
+	   @param write_function A function provided by the host that the UI can use
+	   to send data to the plugin's input ports.
+
+	   @param controller A handle for the plugin instance that should be passed
+	   as the first parameter of @p write_function.
+
+	   @param widget A pointer to an LV2UI_Widget.  The UI will write a widget
+	   pointer to this location (what type of widget depends on the RDF class of
+	   the UI) that will be the main UI widget.
+
+	   @param features An array of LV2_Feature pointers.  The host must pass all
+	   feature URIs that it and the UI supports and any additional data, just
+	   like in the LV2 plugin instantiate() function.  Note that UI features and
+	   plugin features are NOT necessarily the same, they just share the same
+	   data structure - this will probably not be the same array as the one the
+	   plugin host passes to a plugin.
+
+	*/
+	LV2UI_Handle (*instantiate)(const struct _LV2UI_Descriptor* descriptor,
+	                            const char*                     plugin_uri,
+	                            const char*                     bundle_path,
+	                            LV2UI_Write_Function            write_function,
+	                            LV2UI_Controller                controller,
+	                            LV2UI_Widget*                   widget,
+	                            const LV2_Feature* const*       features);
+
+
+	/**
+	   Destroy the UI object and the associated widget. The host must not try
+	   to access the widget after calling this function.
+	*/
+	void (*cleanup)(LV2UI_Handle ui);
+
+	/**
+	   Tell the UI that something interesting has happened at a plugin port.
+
+	   What is interesting and how it is written to the buffer passed to this
+	   function is defined by the @p format parameter, which has the same
+	   meaning as in LV2UI_Write_Function.  The only exception is ports of the
+	   class lv2:ControlPort, for which this function should be called when the
+	   port value changes (it does not have to be called for every single change
+	   if the host's UI thread has problems keeping up with the thread the
+	   plugin is running in), @p buffer_size should be 4, the buffer should
+	   contain a single IEEE-754 float, and @p format should be 0.
+
+	   By default, the host should only call this function for input ports of
+	   the lv2:ControlPort class.  However, this can be modified by using
+	   ui:portNotification in the UI data, or the ui:portSubscribe feature.
+
+	   The @p buffer is only valid during the time of this function call, so if
+	   the UI wants to keep it for later use it has to copy the contents to an
+	   internal buffer.
+
+	   This member may be set to NULL if the UI is not interested in any
+	   port events.
+	*/
+	void (*port_event)(LV2UI_Handle ui,
+	                   uint32_t     port_index,
+	                   uint32_t     buffer_size,
+	                   uint32_t     format,
+	                   const void*  buffer);
+
+	/**
+	   Return a data structure associated with an extension URI, for example
+	   a struct containing additional function pointers.
+
+	   Avoid returning function pointers directly since standard C/C++ has no
+	   valid way of casting a void* to a function pointer. This member may be set
+	   to NULL if the UI is not interested in supporting any extensions. This is
+	   similar to the extension_data() member in LV2_Descriptor.
+	*/
+	const void* (*extension_data)(const char* uri);
+} LV2UI_Descriptor;
+
+/**
+   UI Resize Feature (LV2_UI__resize)
+
+   This structure may be used in two ways: as a feature passed by the host via
+   LV2UI_Descriptor::instantiate(), or as extension data provided by a UI via
+   LV2UI_Descriptor::extension_data()).
+*/
+typedef struct _LV2UI_Resize {
+	/**
+	   Pointer to opaque data which must be passed to ui_resize().
+	*/
+	LV2UI_Feature_Handle handle;
+
+	/**
+	   Request or advertise a size change.
+
+	   When this struct is provided by the host, the UI may call this
+	   function to inform the host about the size of the UI.
+
+	   When this struct is provided by the UI, the host may call this
+	   function to notify the UI that it should change its size accordingly.
+
+	   @return 0 on success.
+	*/
+	int (*ui_resize)(LV2UI_Feature_Handle handle, int width, int height);
+} LV2UI_Resize;
+
+/**
+   Port Map Feature (LV2_UI__portMap).
+
+   This feature can be used by the UI to get the index for a port with the
+   given symbol.  This makes it possible to implement and distribute a UI
+   separately from the plugin (since symbol is a guaranteed stable port
+   identifier while index is not).
+*/
+typedef struct _LV2UI_Port_Map {
+	/**
+	   Pointer to opaque data which must be passed to ui_resize().
+	*/
+	LV2UI_Feature_Handle handle;
+
+	/**
+	   Get the index for the port with the given @p symbol.
+
+	   @return The index of the port, or LV2_UI_INVALID_PORT_INDEX if no such
+	   port is found.
+	*/
+	uint32_t (*port_index)(LV2UI_Feature_Handle handle, const char* symbol);
+} LV2UI_Port_Map;
+
+/**
+   Port subscription feature (LV2_UI__portSubscribe);
+*/
+typedef struct _LV2UI_Port_Subscribe {
+	/**
+	   Pointer to opaque data which must be passed to ui_resize().
+	*/
+	LV2UI_Feature_Handle handle;
+
+	/**
+	   Subscribe to updates for a port.
+
+	   This means that the host will call the UI's port_event() function when
+	   the port value changes (as defined by protocol).
+
+	   Calling this function with the same @p port_index and @p port_protocol
+	   as an already active subscription has no effect.
+
+	   @param handle The handle field of this struct.
+	   @param port_index The index of the port.
+	   @param port_protocol The URID of the ui:PortProtocol.
+	   @param features Features for this subscription.
+	   @return 0 on success.
+	*/
+	uint32_t (*subscribe)(LV2UI_Feature_Handle      handle,
+	                      uint32_t                  port_index,
+	                      uint32_t                  port_protocol,
+	                      const LV2_Feature* const* features);
+
+	/**
+	   Unsubscribe from updates for a port.
+
+	   This means that the host will cease calling calling port_event() when
+	   the port value changes.
+
+	   Calling this function with a @p port_index and @p port_protocol that
+	   does not refer to an active port subscription has no effect.
+
+	   @param handle The handle field of this struct.
+	   @param port_index The index of the port.
+	   @param port_protocol The URID of the ui:PortProtocol.
+	   @param features Features for this subscription.
+	   @return 0 on success.
+	*/
+	uint32_t (*unsubscribe)(LV2UI_Feature_Handle      handle,
+	                        uint32_t                  port_index,
+	                        uint32_t                  port_protocol,
+	                        const LV2_Feature* const* features);
+} LV2UI_Port_Subscribe;
+
+/**
+   A feature to notify the host the user has grabbed a UI control.
+*/
+typedef struct _LV2UI_Touch {
+	/**
+	   Pointer to opaque data which must be passed to ui_resize().
+	*/
+	LV2UI_Feature_Handle handle;
+
+	/**
+	   Notify the host that a control has been grabbed or released.
+
+	   @param handle The handle field of this struct.
+	   @param port_index The index of the port associated with the control.
+	   @param grabbed If true, the control has been grabbed, otherwise the
+	   control has been released.
+	*/
+	void (*touch)(LV2UI_Feature_Handle handle,
+	              uint32_t             port_index,
+	              bool                 grabbed);
+} LV2UI_Touch;
+
+/**
+   UI Idle Feature (LV2_UI__idle)
+
+   This feature is an addition to the UI API that provides a callback for the
+   host to call rapidly, e.g. to drive the idle callback of a toolkit.
+*/
+typedef struct _LV2UI_Idle_Interface {
+	/**
+	   Run a single iteration of the UI's idle loop.
+
+	   This will be called "frequently" in the UI thread at a rate appropriate
+	   for a toolkit main loop.  There are no precise timing guarantees.
+
+	   @return 0 on success, or anything else to stop being called.
+	*/
+	int (*idle)(LV2UI_Handle ui);
+} LV2UI_Idle_Interface;
+
+/**
+   Peak data for a slice of time, the update format for ui:peakProtocol.
+*/
+typedef struct _LV2UI_Peak_Data {
+	/**
+	   The start of the measurement period.  This is just a running counter
+	   that is only meaningful in comparison to previous values and must not be
+	   interpreted as an absolute time.
+	*/
+	uint32_t period_start;
+
+	/**
+	   The size of the measurement period, in the same units as period_start.
+	*/
+	uint32_t period_size;
+
+	/**
+	   The peak value for the measurement period. This should be the maximal
+	   value for abs(sample) over all the samples in the period.
+	*/
+	float peak;
+} LV2UI_Peak_Data;
+
+/**
+   A plugin UI programmer must include a function called "lv2ui_descriptor"
+   with the following function prototype within the shared object file.  This
+   function will have C-style linkage (if you are using C++ this is taken care
+   of by the 'extern "C"' clause at the top of the file).  This function is
+   loaded from the library by the UI host and called to get a
+   LV2UI_Descriptor for the wanted plugin.
+
+   Just like lv2_descriptor(), this function takes an index parameter.  The
+   index should only be used for enumeration and not as any sort of ID number -
+   the host should just iterate from 0 and upwards until the function returns
+   NULL or a descriptor with an URI matching the one the host is looking for.
+*/
+LV2_SYMBOL_EXPORT
+const LV2UI_Descriptor* lv2ui_descriptor(uint32_t index);
+
+/**
+   The type of the lv2ui_descriptor() function.
+*/
+typedef const LV2UI_Descriptor* (*LV2UI_DescriptorFunction)(uint32_t index);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* LV2_UI_H */

distrho/src/lv2/units.h

@@ -0,0 +1,62 @@
+/*
+  Copyright 2012 David Robillard <http://drobilla.net>
+
+  Permission to use, copy, modify, and/or distribute this software for any
+  purpose with or without fee is hereby granted, provided that the above
+  copyright notice and this permission notice appear in all copies.
+
+  THIS SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+  WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+  MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+  ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+  WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+  ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+  OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+*/
+
+/**
+   @file units.h
+   C definitions for the LV2 Units extension
+   <http://lv2plug.in/ns/extensions/units>.
+*/
+
+#ifndef LV2_UNITS_H
+#define LV2_UNITS_H
+
+#define LV2_UNITS_URI    "http://lv2plug.in/ns/extensions/units"
+#define LV2_UNITS_PREFIX LV2_UNITS_URI "#"
+
+#define LV2_UNITS__Conversion       LV2_UNITS_PREFIX "Conversion"
+#define LV2_UNITS__Unit             LV2_UNITS_PREFIX "Unit"
+#define LV2_UNITS__bar              LV2_UNITS_PREFIX "bar"
+#define LV2_UNITS__beat             LV2_UNITS_PREFIX "beat"
+#define LV2_UNITS__bpm              LV2_UNITS_PREFIX "bpm"
+#define LV2_UNITS__cent             LV2_UNITS_PREFIX "cent"
+#define LV2_UNITS__cm               LV2_UNITS_PREFIX "cm"
+#define LV2_UNITS__coef             LV2_UNITS_PREFIX "coef"
+#define LV2_UNITS__conversion       LV2_UNITS_PREFIX "conversion"
+#define LV2_UNITS__db               LV2_UNITS_PREFIX "db"
+#define LV2_UNITS__degree           LV2_UNITS_PREFIX "degree"
+#define LV2_UNITS__frame            LV2_UNITS_PREFIX "frame"
+#define LV2_UNITS__hz               LV2_UNITS_PREFIX "hz"
+#define LV2_UNITS__inch             LV2_UNITS_PREFIX "inch"
+#define LV2_UNITS__khz              LV2_UNITS_PREFIX "khz"
+#define LV2_UNITS__km               LV2_UNITS_PREFIX "km"
+#define LV2_UNITS__m                LV2_UNITS_PREFIX "m"
+#define LV2_UNITS__mhz              LV2_UNITS_PREFIX "mhz"
+#define LV2_UNITS__midiNote         LV2_UNITS_PREFIX "midiNote"
+#define LV2_UNITS__mile             LV2_UNITS_PREFIX "mile"
+#define LV2_UNITS__min              LV2_UNITS_PREFIX "min"
+#define LV2_UNITS__mm               LV2_UNITS_PREFIX "mm"
+#define LV2_UNITS__ms               LV2_UNITS_PREFIX "ms"
+#define LV2_UNITS__name             LV2_UNITS_PREFIX "name"
+#define LV2_UNITS__oct              LV2_UNITS_PREFIX "oct"
+#define LV2_UNITS__pc               LV2_UNITS_PREFIX "pc"
+#define LV2_UNITS__prefixConversion LV2_UNITS_PREFIX "prefixConversion"
+#define LV2_UNITS__render           LV2_UNITS_PREFIX "render"
+#define LV2_UNITS__s                LV2_UNITS_PREFIX "s"
+#define LV2_UNITS__semitone12TET    LV2_UNITS_PREFIX "semitone12TET"
+#define LV2_UNITS__symbol           LV2_UNITS_PREFIX "symbol"
+#define LV2_UNITS__unit             LV2_UNITS_PREFIX "unit"
+
+#endif  /* LV2_UNITS_H */

distrho/src/lv2/uri-map.h

@@ -0,0 +1,98 @@
+/*
+  Copyright 2008-2011 David Robillard <http://drobilla.net>
+
+  Permission to use, copy, modify, and/or distribute this software for any
+  purpose with or without fee is hereby granted, provided that the above
+  copyright notice and this permission notice appear in all copies.
+
+  THIS SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+  WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+  MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+  ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+  WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+  ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+  OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+*/
+
+/**
+   @file
+   C header for the LV2 URI Map extension <http://lv2plug.in/ns/ext/uri-map>.
+
+   This extension defines a simple mechanism for plugins to map URIs to
+   integers, usually for performance reasons (e.g. processing events typed by
+   URIs in real time). The expected use case is for plugins to map URIs to
+   integers for things they 'understand' at instantiation time, and store those
+   values for use in the audio thread without doing any string comparison.
+   This allows the extensibility of RDF with the performance of integers (or
+   centrally defined enumerations).
+*/
+
+#ifndef LV2_URI_MAP_H
+#define LV2_URI_MAP_H
+
+#define LV2_URI_MAP_URI "http://lv2plug.in/ns/ext/uri-map"
+
+#include <stdint.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+   Opaque pointer to host data.
+*/
+typedef void* LV2_URI_Map_Callback_Data;
+
+/**
+   URI Map Feature.
+
+   To support this feature the host must pass an LV2_Feature struct to the
+   plugin's instantiate method with URI "http://lv2plug.in/ns/ext/uri-map"
+   and data pointed to an instance of this struct.
+*/
+typedef struct {
+	/**
+	   Opaque pointer to host data.
+
+	   The plugin MUST pass this to any call to functions in this struct.
+	   Otherwise, it must not be interpreted in any way.
+	*/
+	LV2_URI_Map_Callback_Data callback_data;
+
+	/**
+	   Get the numeric ID of a URI from the host.
+
+	   @param callback_data Must be the callback_data member of this struct.
+	   @param map The 'context' of this URI. Certain extensions may define a
+	   URI that must be passed here with certain restrictions on the return
+	   value (e.g. limited range). This value may be NULL if the plugin needs
+	   an ID for a URI in general. Extensions SHOULD NOT define a context
+	   unless there is a specific need to do so, e.g. to restrict the range of
+	   the returned value.
+	   @param uri The URI to be mapped to an integer ID.
+
+	   This function is referentially transparent; any number of calls with the
+	   same arguments is guaranteed to return the same value over the life of a
+	   plugin instance (though the same URI may return different values with a
+	   different map parameter). However, this function is not necessarily very
+	   fast: plugins SHOULD cache any IDs they might need in performance
+	   critical situations.
+
+	   The return value 0 is reserved and indicates that an ID for that URI
+	   could not be created for whatever reason. Extensions MAY define more
+	   precisely what this means in a certain context, but in general plugins
+	   SHOULD handle this situation as gracefully as possible. However, hosts
+	   SHOULD NOT return 0 from this function in non-exceptional circumstances
+	   (e.g. the URI map SHOULD be dynamic). Hosts that statically support only
+	   a fixed set of URIs should not expect plugins to function correctly.
+	*/
+	uint32_t (*uri_to_id)(LV2_URI_Map_Callback_Data callback_data,
+	                      const char*               map,
+	                      const char*               uri);
+} LV2_URI_Map_Feature;
+
+#ifdef __cplusplus
+} /* extern "C" */
+#endif
+
+#endif /* LV2_URI_MAP_H */

distrho/src/lv2/urid.h

@@ -0,0 +1,129 @@
+/*
+  Copyright 2008-2012 David Robillard <http://drobilla.net>
+  Copyright 2011 Gabriel M. Beddingfield <gabrbedd@gmail.com>
+
+  Permission to use, copy, modify, and/or distribute this software for any
+  purpose with or without fee is hereby granted, provided that the above
+  copyright notice and this permission notice appear in all copies.
+
+  THIS SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+  WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+  MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+  ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+  WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+  ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+  OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+*/
+
+/**
+   @file urid.h
+   C header for the LV2 URID extension <http://lv2plug.in/ns/ext/urid>
+*/
+
+#ifndef LV2_URID_H
+#define LV2_URID_H
+
+#define LV2_URID_URI     "http://lv2plug.in/ns/ext/urid"
+#define LV2_URID_PREFIX  LV2_URID_URI "#"
+
+#define LV2_URID__map   LV2_URID_PREFIX "map"
+#define LV2_URID__unmap LV2_URID_PREFIX "unmap"
+
+/* Legacy defines */
+#define LV2_URID_MAP_URI   LV2_URID__map
+#define LV2_URID_UNMAP_URI LV2_URID__unmap
+
+#include <stdint.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+   Opaque pointer to host data for LV2_URID_Map.
+*/
+typedef void* LV2_URID_Map_Handle;
+
+/**
+   Opaque pointer to host data for LV2_URID_Unmap.
+*/
+typedef void* LV2_URID_Unmap_Handle;
+
+/**
+   URI mapped to an integer.
+*/
+typedef uint32_t LV2_URID;
+
+/**
+   URID Map Feature (LV2_URID__map)
+*/
+typedef struct _LV2_URID_Map {
+	/**
+	   Opaque pointer to host data.
+
+	   This MUST be passed to map_uri() whenever it is called.
+	   Otherwise, it must not be interpreted in any way.
+	*/
+	LV2_URID_Map_Handle handle;
+
+	/**
+	   Get the numeric ID of a URI.
+
+	   If the ID does not already exist, it will be created.
+
+	   This function is referentially transparent; any number of calls with the
+	   same arguments is guaranteed to return the same value over the life of a
+	   plugin instance.  Note, however, that several URIs MAY resolve to the
+	   same ID if the host considers those URIs equivalent.
+
+	   This function is not necessarily very fast or RT-safe: plugins SHOULD
+	   cache any IDs they might need in performance critical situations.
+
+	   The return value 0 is reserved and indicates that an ID for that URI
+	   could not be created for whatever reason.  However, hosts SHOULD NOT
+	   return 0 from this function in non-exceptional circumstances (i.e. the
+	   URI map SHOULD be dynamic).
+
+	   @param handle Must be the callback_data member of this struct.
+	   @param uri The URI to be mapped to an integer ID.
+	*/
+	LV2_URID (*map)(LV2_URID_Map_Handle handle,
+	                const char*         uri);
+} LV2_URID_Map;
+
+/**
+   URI Unmap Feature (LV2_URID__unmap)
+*/
+typedef struct _LV2_URID_Unmap {
+	/**
+	   Opaque pointer to host data.
+
+	   This MUST be passed to unmap() whenever it is called.
+	   Otherwise, it must not be interpreted in any way.
+	*/
+	LV2_URID_Unmap_Handle handle;
+
+	/**
+	   Get the URI for a previously mapped numeric ID.
+
+	   Returns NULL if @p urid is not yet mapped.  Otherwise, the corresponding
+	   URI is returned in a canonical form.  This MAY not be the exact same
+	   string that was originally passed to LV2_URID_Map::map(), but it MUST be
+	   an identical URI according to the URI syntax specification (RFC3986).  A
+	   non-NULL return for a given @p urid will always be the same for the life
+	   of the plugin.  Plugins that intend to perform string comparison on
+	   unmapped URIs SHOULD first canonicalise URI strings with a call to
+	   map_uri() followed by a call to unmap_uri().
+
+	   @param handle Must be the callback_data member of this struct.
+	   @param urid The ID to be mapped back to the URI string.
+	*/
+	const char* (*unmap)(LV2_URID_Unmap_Handle handle,
+	                     LV2_URID              urid);
+} LV2_URID_Unmap;
+
+#ifdef __cplusplus
+} /* extern "C" */
+#endif
+
+#endif /* LV2_URID_H */

distrho/src/lv2/worker.h

@@ -0,0 +1,158 @@
+/*
+  Copyright 2012 David Robillard <http://drobilla.net>
+
+  Permission to use, copy, modify, and/or distribute this software for any
+  purpose with or without fee is hereby granted, provided that the above
+  copyright notice and this permission notice appear in all copies.
+
+  THIS SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+  WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+  MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+  ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+  WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+  ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+  OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+*/
+
+/**
+   @file worker.h C header for the LV2 Worker extension
+   <http://lv2plug.in/ns/ext/worker>.
+*/
+
+#ifndef LV2_WORKER_H
+#define LV2_WORKER_H
+
+#include <stdint.h>
+
+#include "lv2.h"
+
+#define LV2_WORKER_URI    "http://lv2plug.in/ns/ext/worker"
+#define LV2_WORKER_PREFIX LV2_WORKER_URI "#"
+
+#define LV2_WORKER__interface LV2_WORKER_PREFIX "interface"
+#define LV2_WORKER__schedule  LV2_WORKER_PREFIX "schedule"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+   A status code for worker functions.
+*/
+typedef enum {
+	LV2_WORKER_SUCCESS       = 0,  /**< Completed successfully. */
+	LV2_WORKER_ERR_UNKNOWN   = 1,  /**< Unknown error. */
+	LV2_WORKER_ERR_NO_SPACE  = 2   /**< Failed due to lack of space. */
+} LV2_Worker_Status;
+
+typedef void* LV2_Worker_Respond_Handle;
+
+/**
+   A function to respond to run() from the worker method.
+
+   The @p data MUST be safe for the host to copy and later pass to
+   work_response(), and the host MUST guarantee that it will be eventually
+   passed to work_response() if this function returns LV2_WORKER_SUCCESS.
+*/
+typedef LV2_Worker_Status (*LV2_Worker_Respond_Function)(
+	LV2_Worker_Respond_Handle handle,
+	uint32_t                  size,
+	const void*               data);
+
+/**
+   LV2 Plugin Worker Interface.
+
+   This is the interface provided by the plugin to implement a worker method.
+   The plugin's extension_data() method should return an LV2_Worker_Interface
+   when called with LV2_WORKER__interface as its argument.
+*/
+typedef struct _LV2_Worker_Interface {
+	/**
+	   The worker method.  This is called by the host in a non-realtime context
+	   as requested, possibly with an arbitrary message to handle.
+
+	   A response can be sent to run() using @p respond.  The plugin MUST NOT
+	   make any assumptions about which thread calls this method, other than
+	   the fact that there are no real-time requirements.
+
+	   @param instance The LV2 instance this is a method on.
+	   @param respond  A function for sending a response to run().
+	   @param handle   Must be passed to @p respond if it is called.
+	   @param size     The size of @p data.
+	   @param data     Data from run(), or NULL.
+	*/
+	LV2_Worker_Status (*work)(LV2_Handle                  instance,
+	                          LV2_Worker_Respond_Function respond,
+	                          LV2_Worker_Respond_Handle   handle,
+	                          uint32_t                    size,
+	                          const void*                 data);
+
+	/**
+	   Handle a response from the worker.  This is called by the host in the
+	   run() context when a response from the worker is ready.
+
+	   @param instance The LV2 instance this is a method on.
+	   @param size     The size of @p body.
+	   @param body     Message body, or NULL.
+	*/
+	LV2_Worker_Status (*work_response)(LV2_Handle  instance,
+	                                   uint32_t    size,
+	                                   const void* body);
+
+	/**
+	   Called when all responses for this cycle have been delivered.
+
+	   Since work_response() may be called after run() finished, this provides
+	   a hook for code that must run after the cycle is completed.
+
+	   This field may be NULL if the plugin has no use for it.  Otherwise, the
+	   host MUST call it after every run(), regardless of whether or not any
+	   responses were sent that cycle.
+	*/
+	LV2_Worker_Status (*end_run)(LV2_Handle instance);
+} LV2_Worker_Interface;
+
+typedef void* LV2_Worker_Schedule_Handle;
+
+typedef struct _LV2_Worker_Schedule {
+	/**
+	   Opaque host data.
+	*/
+	LV2_Worker_Schedule_Handle handle;
+
+	/**
+	   Request from run() that the host call the worker.
+
+	   This function is in the audio threading class.  It should be called from
+	   run() to request that the host call the work() method in a non-realtime
+	   context with the given arguments.
+
+	   This function is always safe to call from run(), but it is not
+	   guaranteed that the worker is actually called from a different thread.
+	   In particular, when free-wheeling (e.g. for offline rendering), the
+	   worker may be executed immediately.  This allows single-threaded
+	   processing with sample accuracy and avoids timing problems when run() is
+	   executing much faster or slower than real-time.
+
+	   Plugins SHOULD be written in such a way that if the worker runs
+	   immediately, and responses from the worker are delivered immediately,
+	   the effect of the work takes place immediately with sample accuracy.
+
+	   The @p data MUST be safe for the host to copy and later pass to work(),
+	   and the host MUST guarantee that it will be eventually passed to work()
+	   if this function returns LV2_WORKER_SUCCESS.
+
+	   @param handle The handle field of this struct.
+	   @param size   The size of @p data.
+	   @param data   Message to pass to work(), or NULL.
+	*/
+	LV2_Worker_Status (*schedule_work)(LV2_Worker_Schedule_Handle handle,
+	                                   uint32_t                   size,
+	                                   const void*                data);
+} LV2_Worker_Schedule;
+
+#ifdef __cplusplus
+} /* extern "C" */
+#endif
+
+#endif  /* LV2_WORKER_H */

distrho/src/vestige/aeffectx.h

@@ -0,0 +1,279 @@
+/*
+ * aeffectx.h - simple header to allow VeSTige compilation and eventually work
+ *
+ * Copyright (c) 2006 Javier Serrano Polo <jasp00/at/users.sourceforge.net>
+ *
+ * This file is part of Linux MultiMedia Studio - http://lmms.sourceforge.net
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public
+ * License along with this program (see COPYING); if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301 USA.
+ *
+ */
+#include <stdint.h>
+#ifndef _AEFFECTX_H
+#define _AEFFECTX_H
+
+#define CCONST(a, b, c, d)( ( ( (int) a ) << 24 ) |		\
+				( ( (int) b ) << 16 ) |		\
+				( ( (int) c ) << 8 ) |		\
+				( ( (int) d ) << 0 ) )
+
+#define audioMasterAutomate 0
+#define audioMasterVersion 1
+#define audioMasterCurrentId 2
+#define audioMasterIdle 3
+#define audioMasterPinConnected 4
+// unsupported? 5
+#define audioMasterWantMidi 6
+#define audioMasterGetTime 7
+#define audioMasterProcessEvents 8
+#define audioMasterSetTime 9
+#define audioMasterTempoAt 10
+#define audioMasterGetNumAutomatableParameters 11
+#define audioMasterGetParameterQuantization 12
+#define audioMasterIOChanged 13
+#define audioMasterNeedIdle 14
+#define audioMasterSizeWindow 15
+#define audioMasterGetSampleRate 16
+#define audioMasterGetBlockSize 17
+#define audioMasterGetInputLatency 18
+#define audioMasterGetOutputLatency 19
+#define audioMasterGetPreviousPlug 20
+#define audioMasterGetNextPlug 21
+#define audioMasterWillReplaceOrAccumulate 22
+#define audioMasterGetCurrentProcessLevel 23
+#define audioMasterGetAutomationState 24
+#define audioMasterOfflineStart 25
+#define audioMasterOfflineRead 26
+#define audioMasterOfflineWrite 27
+#define audioMasterOfflineGetCurrentPass 28
+#define audioMasterOfflineGetCurrentMetaPass 29
+#define audioMasterSetOutputSampleRate 30
+// unsupported? 31
+#define audioMasterGetSpeakerArrangement 31 // deprecated in 2.4?
+#define audioMasterGetVendorString 32
+#define audioMasterGetProductString 33
+#define audioMasterGetVendorVersion 34
+#define audioMasterVendorSpecific 35
+#define audioMasterSetIcon 36
+#define audioMasterCanDo 37
+#define audioMasterGetLanguage 38
+#define audioMasterOpenWindow 39
+#define audioMasterCloseWindow 40
+#define audioMasterGetDirectory 41
+#define audioMasterUpdateDisplay 42
+#define audioMasterBeginEdit 43
+#define audioMasterEndEdit 44
+#define audioMasterOpenFileSelector 45
+#define audioMasterCloseFileSelector 46 // currently unused
+#define audioMasterEditFile 47 // currently unused
+#define audioMasterGetChunkFile 48 // currently unused
+#define audioMasterGetInputSpeakerArrangement 49 // currently unused
+
+#define effFlagsHasEditor 1
+#define effFlagsCanReplacing (1 << 4) // very likely
+#define effFlagsIsSynth (1 << 8) // currently unused
+
+#define effOpen 0
+#define effClose 1 // currently unused
+#define effSetProgram 2 // currently unused
+#define effGetProgram 3 // currently unused
+#define effGetProgramName 5 // currently unused
+#define effGetParamName 8 // currently unused
+#define effSetSampleRate 10
+#define effSetBlockSize 11
+#define effMainsChanged 12
+#define effEditGetRect 13
+#define effEditOpen 14
+#define effEditClose 15
+#define effEditIdle 19
+#define effEditTop 20
+#define effProcessEvents 25
+#define effGetEffectName 45
+#define effGetVendorString 47
+#define effGetProductString 48
+#define effGetVendorVersion 49
+#define effCanDo 51 // currently unused
+/* from http://asseca.com/vst-24-specs/efGetParameterProperties.html */
+#define effGetParameterProperties 56
+#define effGetVstVersion 58 // currently unused
+
+#define kEffectMagic (CCONST( 'V', 's', 't', 'P' ))
+#define kVstLangEnglish 1
+#define kVstMidiType 1
+#define kVstTempoValid (1 << 10)
+#define kVstTransportPlaying (1 << 1)
+
+
+struct RemoteVstPlugin;
+
+#define kVstNanosValid (1 << 8)
+#define kVstPpqPosValid (1 << 9)
+#define kVstTempoValid (1 << 10)
+#define kVstBarsValid (1 << 11)
+#define kVstCyclePosValid (1 << 12)
+#define kVstTimeSigValid (1 << 13)
+#define kVstSmpteValid (1 << 14)
+#define kVstClockValid (1 << 15)
+
+struct _VstMidiEvent
+{
+	// 00
+	int type;
+	// 04
+	int byteSize;
+	// 08
+	int deltaFrames;
+	// 0c?
+	int flags;
+	// 10?
+	int noteLength;
+	// 14?
+	int noteOffset;
+	// 18
+	char midiData[4];
+	// 1c?
+	char detune;
+	// 1d?
+	char noteOffVelocity;
+	// 1e?
+	char reserved1;
+	// 1f?
+	char reserved2;
+};
+
+typedef struct _VstMidiEvent VstMidiEvent;
+
+
+struct _VstEvent
+{
+	char dump[sizeof (VstMidiEvent)];
+
+};
+
+typedef struct _VstEvent VstEvent;
+
+struct _VstEvents
+{
+	// 00
+	int numEvents;
+	// 04
+	void *reserved;
+	// 08
+	VstEvent * events[2];
+};
+
+typedef struct _VstEvents VstEvents;
+
+/* this struct taken from http://asseca.com/vst-24-specs/efGetParameterProperties.html */
+struct _VstParameterProperties
+{
+	float stepFloat;
+	float smallStepFloat;
+	float largeStepFloat;
+	char label[64];
+	int32_t flags;
+	int32_t minInteger;
+	int32_t maxInteger;
+	int32_t stepInteger;
+	int32_t largeStepInteger;
+	char shortLabel[8];
+};
+
+typedef struct _VstParameterProperties VstParameterProperties;
+
+/* this enum taken from http://asseca.com/vst-24-specs/efGetParameterProperties.html */
+enum VstParameterFlags
+{
+	kVstParameterIsSwitch                = 1 << 0,  /* parameter is a switch (on/off) */
+	kVstParameterUsesIntegerMinMax       = 1 << 1,  /* minInteger, maxInteger valid */
+	kVstParameterUsesFloatStep           = 1 << 2,  /* stepFloat, smallStepFloat, largeStepFloat valid */
+	kVstParameterUsesIntStep             = 1 << 3,  /* stepInteger, largeStepInteger valid */
+	kVstParameterSupportsDisplayIndex    = 1 << 4,  /* displayIndex valid */
+	kVstParameterSupportsDisplayCategory = 1 << 5,  /* category, etc. valid */
+	kVstParameterCanRamp                 = 1 << 6   /* set if parameter value can ramp up/down */
+};
+
+struct _AEffect
+{
+	// Never use virtual functions!!!
+	// 00-03
+	int magic;
+	// dispatcher 04-07
+	intptr_t (* dispatcher) (struct _AEffect *, int, int, intptr_t, void *, float);
+	// process, quite sure 08-0b
+	void (* process) (struct _AEffect *, float **, float **, int);
+	// setParameter 0c-0f
+	void (* setParameter) (struct _AEffect *, int, float);
+	// getParameter 10-13
+	float (* getParameter) (struct _AEffect *, int);
+	// programs 14-17
+	int numPrograms;
+	// Params 18-1b
+	int numParams;
+	// Input 1c-1f
+	int numInputs;
+	// Output 20-23
+	int numOutputs;
+	// flags 24-27
+	int flags;
+	// Fill somewhere 28-2b
+	void *ptr1;
+	void *ptr2;
+	// Zeroes 2c-2f 30-33 34-37 38-3b
+	char empty3[4 + 4 + 4];
+	// 1.0f 3c-3f
+	float unkown_float;
+	// An object? pointer 40-43
+	void *ptr3;
+	// Zeroes 44-47
+	void *user;
+	// Id 48-4b
+	int32_t uniqueID;
+	// Don't know 4c-4f
+	char unknown1[4];
+	// processReplacing 50-53
+	void (* processReplacing) (struct _AEffect *, float **, float **, int);
+};
+
+typedef struct _AEffect AEffect;
+
+struct _VstTimeInfo
+{
+	// 00
+	double samplePos;
+	// 08
+	double sampleRate;
+	// unconfirmed 10 18
+	char empty1[8 + 8];
+	// 20?
+	double tempo;
+	// unconfirmed 28 30 38
+	char empty2[8 + 8 + 8];
+	// 40?
+	int timeSigNumerator;
+	// 44?
+	int timeSigDenominator;
+	// unconfirmed 48 4c 50
+	char empty3[4 + 4 + 4];
+	// 54
+	int flags;
+};
+
+typedef struct _VstTimeInfo VstTimeInfo;
+
+typedef intptr_t (* audioMasterCallback) (AEffect *, int32_t, int32_t, intptr_t, void *, float);
+
+#endif

lv2-ttl-generator/GNUmakefile

@@ -0,0 +1,16 @@
+#!/usr/bin/makefile -f
+
+all: build
+
+build: ../lv2_ttl_generator
+mingw: ../lv2_ttl_generator.exe
+
+../lv2_ttl_generator: lv2_ttl_generator.c
+	$(CXX) lv2_ttl_generator.c -o ../lv2_ttl_generator -ldl
+
+../lv2_ttl_generator.exe: lv2_ttl_generator.c
+	$(CXX) lv2_ttl_generator.c -o ../lv2_ttl_generator.exe -static
+	touch ../lv2_ttl_generator
+
+clean:
+	rm -f ../lv2_ttl_generator ../lv2_ttl_generator.exe

lv2-ttl-generator/lv2_ttl_generator.c

@@ -0,0 +1,81 @@
+/*
+ * JUCE LV2 *.ttl generator
+ */
+
+#include <stdio.h>
+#include <string.h>
+
+#ifdef _WIN32
+ #include <windows.h>
+ #define TTL_GENERATOR_WINDOWS
+#else
+ #include <dlfcn.h>
+#endif
+
+#ifndef nullptr
+ #define nullptr (0)
+#endif
+
+typedef void (*TTL_Generator_Function)(const char* basename);
+
+int main(int argc, char* argv[])
+{
+    if (argc != 2)
+    {
+        printf("usage: %s /path/to/plugin-DLL\n", argv[0]);
+        return 1;
+    }
+
+#ifdef TTL_GENERATOR_WINDOWS
+    const HMODULE handle = LoadLibraryA(argv[1]);
+#else
+    void* const handle = dlopen(argv[1], RTLD_LAZY);
+#endif
+
+    if (! handle)
+    {
+#ifdef TTL_GENERATOR_WINDOWS
+        printf("Failed to open plugin DLL\n");
+#else
+        printf("Failed to open plugin DLL, error was:\n%s\n", dlerror());
+#endif
+        return 2;
+    }
+
+#ifdef TTL_GENERATOR_WINDOWS
+    const TTL_Generator_Function ttlFn = (TTL_Generator_Function)GetProcAddress(handle, "lv2_generate_ttl");
+#else
+    const TTL_Generator_Function ttlFn = (TTL_Generator_Function)dlsym(handle, "lv2_generate_ttl");
+#endif
+
+    if (ttlFn != NULL)
+    {
+        char basename[strlen(argv[1])+1];
+
+#ifdef TTL_GENERATOR_WINDOWS
+        if (char* base2 = strrchr(argv[1], '\\'))
+#else
+        if (char* base2 = strrchr(argv[1], '/'))
+#endif
+        {
+            strcpy(basename, base2+1);
+            basename[strrchr(base2, '.')-base2-1] = '\0';
+        }
+        else
+            strcpy(basename, argv[1]);
+
+        printf("Generate ttl data for '%s', basename: '%s'\n", argv[1], basename);
+
+        ttlFn(basename);
+    }
+    else
+        printf("Failed to find 'lv2_generate_ttl' function\n");
+
+#ifdef TTL_GENERATOR_WINDOWS
+    FreeLibrary(handle);
+#else
+    dlclose(handle);
+#endif
+
+    return 0;
+}