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Remove imgui gain plugin example 

Signed-off-by: falkTX <falktx@falktx.com>
pull/321/head
falkTX 2 years ago
parent
00faae6785
commit
18fa6249d8
Signed by: falkTX <falktx@falktx.com> GPG Key ID: CDBAA37ABC74FBA0
7 changed files with 0 additions and 658 deletions
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  1. +0
    -45
      examples/ImGuiSimpleGain/CParamSmooth.hpp
  2. +0
    -145
      examples/ImGuiSimpleGain/DistrhoPluginInfo.h
  3. +0
    -41
      examples/ImGuiSimpleGain/Makefile
  4. +0
    -130
      examples/ImGuiSimpleGain/PluginSimpleGain.cpp
  5. +0
    -135
      examples/ImGuiSimpleGain/PluginSimpleGain.hpp
  6. +0
    -106
      examples/ImGuiSimpleGain/UISimpleGain.cpp
  7. +0
    -56
      examples/ImGuiSimpleGain/UISimpleGain.hpp

+ 0
- 45
examples/ImGuiSimpleGain/CParamSmooth.hpp View File

@@ -1,45 +0,0 @@
/**
* One-pole LPF for smooth parameter changes
*
* https://www.musicdsp.org/en/latest/Filters/257-1-pole-lpf-for-smooth-parameter-changes.html
*/

#ifndef C_PARAM_SMOOTH_H
#define C_PARAM_SMOOTH_H

#include <math.h>

#define TWO_PI 6.283185307179586476925286766559f

class CParamSmooth {
public:
CParamSmooth(float smoothingTimeMs, float samplingRate)
: t(smoothingTimeMs)
{
setSampleRate(samplingRate);
}

~CParamSmooth() { }

void setSampleRate(float samplingRate) {
if (samplingRate != fs) {
fs = samplingRate;
a = exp(-TWO_PI / (t * 0.001f * samplingRate));
b = 1.0f - a;
z = 0.0f;
}
}

inline void flush() {
z = 0.0f;
}

inline float process(float in) {
return z = (in * b) + (z * a);
}
private:
float a, b, t, z;
double fs = 0.0;
};

#endif // #ifndef C_PARAM_SMOOTH_H

+ 0
- 145
examples/ImGuiSimpleGain/DistrhoPluginInfo.h View File

@@ -1,145 +0,0 @@
/*
* Simple Gain audio effect for DISTRHO Plugin Framework (DPF)
* SPDX-License-Identifier: MIT
*
* Copyright (C) 2021 Jean Pierre Cimalando <jp-dev@inbox.ru>
* Copyright (C) 2021 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.
*/

/**
The plugin name.@n
This is used to identify your plugin before a Plugin instance can be created.
@note This macro is required.
*/
#define DISTRHO_PLUGIN_NAME "ImGuiSimpleGain"

/**
Number of audio inputs the plugin has.
@note This macro is required.
*/
#define DISTRHO_PLUGIN_NUM_INPUTS 2

/**
Number of audio outputs the plugin has.
@note This macro is required.
*/
#define DISTRHO_PLUGIN_NUM_OUTPUTS 2

/**
The plugin URI when exporting in LV2 format.
@note This macro is required.
*/
#define DISTRHO_PLUGIN_URI "http://distrho.sf.net/examples/imguisimplegain"

/**
Wherever the plugin has a custom %UI.
@see DISTRHO_UI_USE_NANOVG
@see UI
*/
#define DISTRHO_PLUGIN_HAS_UI 1

/**
Wherever the plugin processing is realtime-safe.@n
TODO - list rtsafe requirements
*/
#define DISTRHO_PLUGIN_IS_RT_SAFE 1

/**
Wherever the plugin is a synth.@n
@ref DISTRHO_PLUGIN_WANT_MIDI_INPUT is automatically enabled when this is too.
@see DISTRHO_PLUGIN_WANT_MIDI_INPUT
*/
#define DISTRHO_PLUGIN_IS_SYNTH 0

/**
Enable direct access between the %UI and plugin code.
@see UI::getPluginInstancePointer()
@note DO NOT USE THIS UNLESS STRICTLY NECESSARY!!
Try to avoid it at all costs!
*/
#define DISTRHO_PLUGIN_WANT_DIRECT_ACCESS 0

/**
Wherever the plugin introduces latency during audio or midi processing.
@see Plugin::setLatency(uint32_t)
*/
#define DISTRHO_PLUGIN_WANT_LATENCY 0

/**
Wherever the plugin wants MIDI input.@n
This is automatically enabled if @ref DISTRHO_PLUGIN_IS_SYNTH is true.
*/
#define DISTRHO_PLUGIN_WANT_MIDI_INPUT 0

/**
Wherever the plugin wants MIDI output.
@see Plugin::writeMidiEvent(const MidiEvent&)
*/
#define DISTRHO_PLUGIN_WANT_MIDI_OUTPUT 0

/**
Wherever the plugin provides its own internal programs.
@see Plugin::initProgramName(uint32_t, String&)
@see Plugin::loadProgram(uint32_t)
*/
#define DISTRHO_PLUGIN_WANT_PROGRAMS 0

/**
Wherever the plugin uses internal non-parameter data.
@see Plugin::initState(uint32_t, String&, String&)
@see Plugin::setState(const char*, const char*)
*/
#define DISTRHO_PLUGIN_WANT_STATE 0

/**
Wherever the plugin wants time position information from the host.
@see Plugin::getTimePosition()
*/
#define DISTRHO_PLUGIN_WANT_TIMEPOS 0

/**
Wherever the %UI uses NanoVG for drawing instead of the default raw OpenGL calls.@n
When enabled your %UI instance will subclass @ref NanoWidget instead of @ref Widget.
*/
#define DISTRHO_UI_USE_NANOVG 0

/**
The %UI URI when exporting in LV2 format.@n
By default this is set to @ref DISTRHO_PLUGIN_URI with "#UI" as suffix.
*/
#define DISTRHO_UI_URI DISTRHO_PLUGIN_URI "#UI"

/**
Wherever the %UI uses a custom toolkit implementation based on OpenGL.@n
When enabled, the macros @ref DISTRHO_UI_CUSTOM_INCLUDE_PATH and @ref DISTRHO_UI_CUSTOM_WIDGET_TYPE are required.
*/
#define DISTRHO_UI_USE_CUSTOM 1

/**
The include path to the header file used by the custom toolkit implementation.
This path must be relative to dpf/distrho/DistrhoUI.hpp
@see DISTRHO_UI_USE_CUSTOM
*/
#define DISTRHO_UI_CUSTOM_INCLUDE_PATH "DearImGui.hpp"

/**
The top-level-widget typedef to use for the custom toolkit.
This widget class MUST be a subclass of DGL TopLevelWindow class.
It is recommended that you keep this widget class inside the DGL namespace,
and define widget type as e.g. DGL_NAMESPACE::MyCustomTopLevelWidget.
@see DISTRHO_UI_USE_CUSTOM
*/
#define DISTRHO_UI_CUSTOM_WIDGET_TYPE DGL_NAMESPACE::ImGuiTopLevelWidget

#define DISTRHO_UI_USER_RESIZABLE 1

+ 0
- 41
examples/ImGuiSimpleGain/Makefile View File

@@ -1,41 +0,0 @@
#!/usr/bin/make -f
# Makefile for DISTRHO Plugins #
# ---------------------------- #
# Created by falkTX, Christopher Arndt, and Patrick Desaulniers
#

# --------------------------------------------------------------
# Project name, used for binaries

NAME = d_ImGuiSimpleGain

# --------------------------------------------------------------
# Files to build

FILES_DSP = \
PluginSimpleGain.cpp

FILES_UI = \
UISimpleGain.cpp \
../../../DPF-Widgets/opengl/DearImGui.cpp

# --------------------------------------------------------------
# Do some magic

include ../../Makefile.plugins.mk

# path to DPF-Widgets
BUILD_CXX_FLAGS += -I../../../DPF-Widgets/opengl/

# --------------------------------------------------------------
# Enable all selected plugin types

TARGETS += jack lv2_sep vst2 vst3

ifeq ($(HAVE_LIBLO),true)
TARGETS += dssi
endif # HAVE_LIBLO

all: $(TARGETS)

# --------------------------------------------------------------

+ 0
- 130
examples/ImGuiSimpleGain/PluginSimpleGain.cpp View File

@@ -1,130 +0,0 @@
/*
* Simple Gain audio effect based on DISTRHO Plugin Framework (DPF)
*
* SPDX-License-Identifier: MIT
*
* Copyright (C) 2021 Jean Pierre Cimalando <jp-dev@inbox.ru>
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*/

#include "PluginSimpleGain.hpp"

START_NAMESPACE_DISTRHO

// -----------------------------------------------------------------------

PluginSimpleGain::PluginSimpleGain()
: Plugin(paramCount, 0, 0), // parameters, programs, states
fSampleRate(getSampleRate()),
fGainDB(0.0f),
fGainLinear(1.0f)
{
fSmoothGain = new CParamSmooth(20.0f, fSampleRate);
}

// -----------------------------------------------------------------------
// Init

void PluginSimpleGain::initParameter(uint32_t index, Parameter& parameter)
{
DISTRHO_SAFE_ASSERT_RETURN(index == 0,);

parameter.ranges.min = -90.0f;
parameter.ranges.max = 30.0f;
parameter.ranges.def = -0.0f;
parameter.hints = kParameterIsAutomatable;
parameter.name = "Gain";
parameter.shortName = "Gain";
parameter.symbol = "gain";
parameter.unit = "dB";
}

// -----------------------------------------------------------------------
// Internal data

/**
Get the current value of a parameter.
*/
float PluginSimpleGain::getParameterValue(uint32_t index) const
{
DISTRHO_SAFE_ASSERT_RETURN(index == 0, 0.0f);

return fGainDB;
}

/**
Change a parameter value.
*/
void PluginSimpleGain::setParameterValue(uint32_t index, float value)
{
DISTRHO_SAFE_ASSERT_RETURN(index == 0,);

fGainDB = value;
fGainLinear = DB_CO(CLAMP(value, -90.0, 30.0));
}

// -----------------------------------------------------------------------
// Process

void PluginSimpleGain::activate()
{
fSmoothGain->flush();
}

void PluginSimpleGain::run(const float** inputs, float** outputs, uint32_t frames)
{
// get the left and right audio inputs
const float* const inpL = inputs[0];
const float* const inpR = inputs[1];

// get the left and right audio outputs
float* const outL = outputs[0];
float* const outR = outputs[1];

// apply gain against all samples
for (uint32_t i=0; i < frames; ++i)
{
const float gain = fSmoothGain->process(fGainLinear);
outL[i] = inpL[i] * gain;
outR[i] = inpR[i] * gain;
}
}

// -----------------------------------------------------------------------

/**
Optional callback to inform the plugin about a sample rate change.
*/
void PluginSimpleGain::sampleRateChanged(double newSampleRate)
{
fSampleRate = newSampleRate;
fSmoothGain->setSampleRate(newSampleRate);
}

// -----------------------------------------------------------------------

Plugin* createPlugin()
{
return new PluginSimpleGain();
}

// -----------------------------------------------------------------------

END_NAMESPACE_DISTRHO

+ 0
- 135
examples/ImGuiSimpleGain/PluginSimpleGain.hpp View File

@@ -1,135 +0,0 @@
/*
* Simple Gain audio effect based on DISTRHO Plugin Framework (DPF)
*
* SPDX-License-Identifier: MIT
*
* Copyright (C) 2021 Jean Pierre Cimalando <jp-dev@inbox.ru>
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*/

#ifndef PLUGIN_SIMPLEGAIN_H
#define PLUGIN_SIMPLEGAIN_H

#include "DistrhoPlugin.hpp"
#include "CParamSmooth.hpp"
#include "extra/ScopedPointer.hpp"

START_NAMESPACE_DISTRHO

#ifndef MIN
#define MIN(a,b) ( (a) < (b) ? (a) : (b) )
#endif

#ifndef MAX
#define MAX(a,b) ( (a) > (b) ? (a) : (b) )
#endif

#ifndef CLAMP
#define CLAMP(v, min, max) (MIN((max), MAX((min), (v))))
#endif

#ifndef DB_CO
#define DB_CO(g) ((g) > -90.0f ? powf(10.0f, (g) * 0.05f) : 0.0f)
#endif

// -----------------------------------------------------------------------

class PluginSimpleGain : public Plugin {
public:
enum Parameters {
paramGain = 0,
paramCount
};

PluginSimpleGain();

protected:
// -------------------------------------------------------------------
// Information

const char* getLabel() const noexcept override
{
return "SimpleGain";
}

const char* getDescription() const override
{
return "A simple audio volume gain plugin with ImGui for its GUI";
}

const char* getMaker() const noexcept override
{
return "Jean Pierre Cimalando, falkTX";
}

const char* getLicense() const noexcept override
{
return "MIT";
}

uint32_t getVersion() const noexcept override
{
return d_version(1, 0, 0);
}

int64_t getUniqueId() const noexcept override
{
return d_cconst('d', 'I', 'm', 'G');
}

// -------------------------------------------------------------------
// Init

void initParameter(uint32_t index, Parameter& parameter) override;

// -------------------------------------------------------------------
// Internal data

float getParameterValue(uint32_t index) const override;
void setParameterValue(uint32_t index, float value) override;

// -------------------------------------------------------------------
// Optional

// Optional callback to inform the plugin about a sample rate change.
void sampleRateChanged(double newSampleRate) override;

// -------------------------------------------------------------------
// Process

void activate() override;
void run(const float**, float** outputs, uint32_t frames) override;

// -------------------------------------------------------------------

private:
double fSampleRate;
float fGainDB;
float fGainLinear;
ScopedPointer<CParamSmooth> fSmoothGain;

DISTRHO_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(PluginSimpleGain)
};

// -----------------------------------------------------------------------

END_NAMESPACE_DISTRHO

#endif // #ifndef PLUGIN_SIMPLEGAIN_H

+ 0
- 106
examples/ImGuiSimpleGain/UISimpleGain.cpp View File

@@ -1,106 +0,0 @@
/*
* Simple Gain audio effect based on DISTRHO Plugin Framework (DPF)
*
* SPDX-License-Identifier: MIT
*
* Copyright (C) 2021 Jean Pierre Cimalando <jp-dev@inbox.ru>
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*/

#include "UISimpleGain.hpp"

START_NAMESPACE_DISTRHO

// -----------------------------------------------------------------------
// Init / Deinit

UISimpleGain::UISimpleGain()
: UI(600, 400),
fGain(0.0f),
fResizeHandle(this)
{
setGeometryConstraints(600, 400, true);

// hide handle if UI is resizable
if (isResizable())
fResizeHandle.hide();
}

// -----------------------------------------------------------------------
// DSP/Plugin callbacks

/**
A parameter has changed on the plugin side.
This is called by the host to inform the UI about parameter changes.
*/
void UISimpleGain::parameterChanged(uint32_t index, float value)
{
DISTRHO_SAFE_ASSERT_RETURN(index == 0,);

fGain = value;
repaint();
}

// -----------------------------------------------------------------------
// Widget callbacks

/**
A function called to draw the view contents.
*/
void UISimpleGain::onImGuiDisplay()
{
const float width = getWidth();
const float height = getHeight();
const float margin = 20.0f * getScaleFactor();

ImGui::SetNextWindowPos(ImVec2(margin, margin));
ImGui::SetNextWindowSize(ImVec2(width - 2 * margin, height - 2 * margin));

if (ImGui::Begin("Simple gain", nullptr, ImGuiWindowFlags_NoResize))
{
static char aboutText[256] = "This is a demo plugin made with ImGui.\n";
ImGui::InputTextMultiline("About", aboutText, sizeof(aboutText));

if (ImGui::SliderFloat("Gain (dB)", &fGain, -90.0f, 30.0f))
{
if (ImGui::IsItemActivated())
editParameter(0, true);

setParameterValue(0, fGain);
}

if (ImGui::IsItemDeactivated())
{
editParameter(0, false);
}
}
ImGui::End();
}

// -----------------------------------------------------------------------

UI* createUI()
{
return new UISimpleGain();
}

// -----------------------------------------------------------------------

END_NAMESPACE_DISTRHO

+ 0
- 56
examples/ImGuiSimpleGain/UISimpleGain.hpp View File

@@ -1,56 +0,0 @@
/*
* Simple Gain audio effect based on DISTRHO Plugin Framework (DPF)
*
* SPDX-License-Identifier: MIT
*
* Copyright (C) 2021 Jean Pierre Cimalando <jp-dev@inbox.ru>
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*/

#ifndef UI_SIMPLEGAIN_H
#define UI_SIMPLEGAIN_H

#include "DistrhoUI.hpp"
#include "../generic/ResizeHandle.hpp"

START_NAMESPACE_DISTRHO

class UISimpleGain : public UI
{
public:
UISimpleGain();

protected:
// DSP/Plugin callbacks
void parameterChanged(uint32_t, float value) override;

// Widget callbacks
void onImGuiDisplay() override;

private:
float fGain;
ResizeHandle fResizeHandle;

DISTRHO_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(UISimpleGain)
};

END_NAMESPACE_DISTRHO

#endif

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