Add initial DSP code for xycontroller

Signed-off-by: falkTX <falktx@falktx.com>

source/native-plugins/Makefile

@@ -47,7 +47,8 @@ OBJS = \
 	$(OBJDIR)/bigmeter.cpp.o \
 	$(OBJDIR)/midi-file.cpp.o \
 	$(OBJDIR)/midi-pattern.cpp.o \
-	$(OBJDIR)/notes.cpp.o
+	$(OBJDIR)/notes.cpp.o \
+	$(OBJDIR)/xycontroller.cpp.o
 
 OBJS_audiogain = \
 	$(OBJDIR)/audio-gain.c.o

source/native-plugins/_all.c

@@ -48,6 +48,7 @@ extern void carla_register_native_plugin_carla(void);
 // External-UI plugins
 extern void carla_register_native_plugin_bigmeter(void);
 extern void carla_register_native_plugin_notes(void);
+extern void carla_register_native_plugin_xycontroller(void);
 
 #ifdef HAVE_EXTERNAL_PLUGINS
 void carla_register_all_native_external_plugins(void);
@@ -88,6 +89,7 @@ void carla_register_all_native_plugins(void)
     carla_register_native_plugin_bigmeter();
     carla_register_native_plugin_midipattern();
     carla_register_native_plugin_notes();
+    carla_register_native_plugin_xycontroller();
 #endif // HAVE_PYQT
 
 #ifdef HAVE_EXTERNAL_PLUGINS

source/native-plugins/_data.cpp

@@ -556,6 +556,23 @@ static const NativePluginDescriptor sNativePluginDescriptors[] = {
     /* copyright */ "GNU GPL v2+",
     DESCFUNCS_WITHOUTCV
 },
+{
+    /* category  */ NATIVE_PLUGIN_CATEGORY_UTILITY,
+    /* hints     */ static_cast<NativePluginHints>(NATIVE_PLUGIN_IS_RTSAFE
+                                                  |NATIVE_PLUGIN_HAS_UI),
+    /* supports  */ NATIVE_PLUGIN_SUPPORTS_NOTHING,
+    /* audioIns  */ 0,
+    /* audioOuts */ 0,
+    /* midiIns   */ 0,
+    /* midiOuts  */ 1,
+    /* paramIns  */ 2,
+    /* paramOuts */ 2,
+    /* name      */ "XY Controller",
+    /* label     */ "xycontroller",
+    /* maker     */ "falkTX",
+    /* copyright */ "GNU GPL v2+",
+    DESCFUNCS_WITHOUTCV
+}
 #endif
 
 #ifdef HAVE_EXTERNAL_PLUGINS

source/native-plugins/xycontroller.cpp

@@ -0,0 +1,162 @@
+/*
+ * XY Controller UI, taken from Cadence
+ * Copyright (C) 2011-2020 Filipe Coelho <falktx@falktx.com>
+ *
+ * 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 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.
+ *
+ * For a full copy of the GNU General Public License see the doc/GPL.txt file.
+ */
+
+#include "CarlaDefines.h"
+
+#include "CarlaNativeExtUI.hpp"
+
+// -----------------------------------------------------------------------
+
+class XYControllerPlugin : public NativePluginAndUiClass
+{
+public:
+    enum Parameters {
+        kParamInX,
+        kParamInY,
+        kParamOutX,
+        kParamOutY,
+        kParamCount,
+    };
+
+    XYControllerPlugin(const NativeHostDescriptor* const host)
+        : NativePluginAndUiClass(host, "xycontroller-ui"),
+          fParams()
+    {
+        carla_fill(fParams, 50.0f, kParamCount);
+    }
+
+protected:
+    // -------------------------------------------------------------------
+    // Plugin parameter calls
+
+    uint32_t getParameterCount() const override
+    {
+        return kParamCount;
+    }
+
+    const NativeParameter* getParameterInfo(const uint32_t index) const override
+    {
+        CARLA_SAFE_ASSERT_RETURN(index < kParamCount, nullptr);
+
+        static NativeParameter param;
+
+        int hints = NATIVE_PARAMETER_IS_ENABLED|NATIVE_PARAMETER_IS_AUTOMABLE;
+
+        param.name = nullptr;
+        param.unit = "%";
+        param.ranges.def       = 50.0f;
+        param.ranges.min       = 0.0f;
+        param.ranges.max       = 100.0f;
+        param.ranges.step      = 1.0f;
+        param.ranges.stepSmall = 0.01f;
+        param.ranges.stepLarge = 10.0f;
+        param.scalePointCount  = 0;
+        param.scalePoints      = nullptr;
+
+        switch (index)
+        {
+        case kParamInX:
+            param.name = "X";
+            break;
+        case kParamInY:
+            param.name = "Y";
+            break;
+        case kParamOutX:
+            hints |= NATIVE_PARAMETER_IS_OUTPUT;
+            param.name = "Out X";
+            break;
+        case kParamOutY:
+            hints |= NATIVE_PARAMETER_IS_OUTPUT;
+            param.name = "Out Y";
+            break;
+        }
+
+        param.hints = static_cast<NativeParameterHints>(hints);
+
+        return &param;
+    }
+
+    float getParameterValue(const uint32_t index) const override
+    {
+        CARLA_SAFE_ASSERT_RETURN(index < kParamCount, 0.0f);
+
+        return fParams[index];
+    }
+
+    // -------------------------------------------------------------------
+    // Plugin state calls
+
+    void setParameterValue(const uint32_t index, const float value) override
+    {
+        switch (index)
+        {
+        case kParamInX:
+        case kParamInY:
+            fParams[index] = value;
+            break;
+        }
+    }
+
+    // -------------------------------------------------------------------
+    // Plugin process calls
+
+    void process(const float* const*, float**, const uint32_t,
+                 const NativeMidiEvent* const, const uint32_t) override
+    {
+        fParams[kParamOutX] = fParams[kParamInX];
+        fParams[kParamOutY] = fParams[kParamInY];
+    }
+
+private:
+    float fParams[kParamCount];
+
+    PluginClassEND(XYControllerPlugin)
+    CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(XYControllerPlugin)
+};
+
+// -----------------------------------------------------------------------
+
+static const NativePluginDescriptor notesDesc = {
+    /* category  */ NATIVE_PLUGIN_CATEGORY_UTILITY,
+    /* hints     */ static_cast<NativePluginHints>(NATIVE_PLUGIN_IS_RTSAFE
+                                                  |NATIVE_PLUGIN_HAS_UI),
+    /* supports  */ NATIVE_PLUGIN_SUPPORTS_NOTHING,
+    /* audioIns  */ 0,
+    /* audioOuts */ 0,
+    /* midiIns   */ 0,
+    /* midiOuts  */ 1,
+    /* paramIns  */ 2,
+    /* paramOuts */ 2,
+    /* name      */ "XY Controller",
+    /* label     */ "xycontroller",
+    /* maker     */ "falkTX",
+    /* copyright */ "GNU GPL v2+",
+    PluginDescriptorFILL(XYControllerPlugin)
+};
+
+// -----------------------------------------------------------------------
+
+CARLA_EXPORT
+void carla_register_native_plugin_xycontroller();
+
+CARLA_EXPORT
+void carla_register_native_plugin_xycontroller()
+{
+    carla_register_native_plugin(&notesDesc);
+}
+
+// -----------------------------------------------------------------------