Tests for integrated opengl widgets in vcv canvas
This commit is contained in:
falkTX
parent
83f0cde441
commit
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8 changed files with 488 additions and 2 deletions
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@ -30,6 +30,15 @@
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"tags": [
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"tags": [
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"Utility"
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"Utility"
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]
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]
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},
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{
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"slug": "glBars",
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"disabled": false,
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"name": "glBars",
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"description": "OpenGL bars visualization, as seen in XMMS and XBMC/Kodi",
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"tags": [
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"Visual"
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]
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}
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}
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]
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]
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}
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}
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128
plugins/Cardinal/res/glBars.svg
Normal file
128
plugins/Cardinal/res/glBars.svg
Normal file
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@ -0,0 +1,128 @@
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After Width: | Height: | Size: 3.7 KiB |
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@ -38,10 +38,10 @@ struct CardinalPluginContext : rack::Context {
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END_NAMESPACE_DISTRHO
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END_NAMESPACE_DISTRHO
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USE_NAMESPACE_DISTRHO;
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// -----------------------------------------------------------------------------------------------------------
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// -----------------------------------------------------------------------------------------------------------
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USE_NAMESPACE_DISTRHO;
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struct HostParameters : Module {
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struct HostParameters : Module {
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enum ParamIds {
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enum ParamIds {
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NUM_PARAMS
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NUM_PARAMS
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99
plugins/Cardinal/src/glBars.cpp
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99
plugins/Cardinal/src/glBars.cpp
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@ -0,0 +1,99 @@
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/*
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* DISTRHO Cardinal Plugin
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* Copyright (C) 2021 Filipe Coelho <falktx@falktx.com>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 3 of
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* the License, or any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* For a full copy of the GNU General Public License see the LICENSE file.
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*/
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#include "glBars.hpp"
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#define SAMPLES_PER_DRAW 256
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struct glBarsModule : Module {
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enum ParamIds {
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NUM_PARAMS
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};
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enum InputIds {
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IN1_INPUT,
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NUM_INPUTS
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};
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enum OutputIds {
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NUM_OUTPUTS
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};
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enum LightIds {
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NUM_LIGHTS
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};
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glBarsState state;
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float audioData[SAMPLES_PER_DRAW];
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uint audioDataFill = 0;
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glBarsModule() {
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config(NUM_PARAMS, NUM_INPUTS, NUM_OUTPUTS, NUM_LIGHTS);
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}
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void process(const ProcessArgs&) override {
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audioData[audioDataFill++] = inputs[IN1_INPUT].getVoltage();
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if (audioDataFill == SAMPLES_PER_DRAW) {
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audioDataFill = 0;
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state.AudioData(audioData, SAMPLES_PER_DRAW);
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}
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}
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};
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struct glBarsRendererWidget : OpenGlWidget {
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glBarsModule* const glBars;
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glBarsRendererWidget(glBarsModule* const module)
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: glBars(module) {}
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void drawFramebuffer() override {
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math::Vec fbSize = getFramebufferSize();
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glMatrixMode(GL_PROJECTION);
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glLoadIdentity();
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glOrtho(0.0, fbSize.x, fbSize.y, 0.0, 0.0, 1.0);
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glViewport(0.0, 0.0, fbSize.x, fbSize.y);
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glMatrixMode(GL_MODELVIEW);
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glLoadIdentity();
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// glDisable(GL_CULL_FACE);
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// glDisable(GL_STENCIL_TEST);
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glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);
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glBars->state.Render();
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}
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};
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struct glBarsWidget : ModuleWidget {
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glBarsRendererWidget* const glBarsRenderer;
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glBarsWidget(glBarsModule* const module)
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: glBarsRenderer(new glBarsRendererWidget(module))
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{
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setModule(module);
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setPanel(APP->window->loadSvg(asset::plugin(pluginInstance, "res/glBars.svg")));
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addChild(createWidget<ScrewSilver>(Vec(0, 0)));
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addChild(createWidget<ScrewSilver>(Vec(0, RACK_GRID_HEIGHT - RACK_GRID_WIDTH)));
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addChild(createWidget<ScrewSilver>(Vec(RACK_GRID_WIDTH, 0)));
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addChild(createWidget<ScrewSilver>(Vec(RACK_GRID_WIDTH, RACK_GRID_HEIGHT - RACK_GRID_WIDTH)));
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glBarsRenderer->box.pos = Vec(2 * RACK_GRID_WIDTH, 0);
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glBarsRenderer->box.size = Vec(box.size.x - 2 * RACK_GRID_WIDTH, box.size.y);
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addChild(glBarsRenderer);
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addInput(createInput<PJ301MPort>(Vec(3, 54), module, glBarsModule::IN1_INPUT));
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}
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};
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Model* modelGlBars = createModel<glBarsModule, glBarsWidget>("glBars");
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234
plugins/Cardinal/src/glBars.hpp
Normal file
234
plugins/Cardinal/src/glBars.hpp
Normal file
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@ -0,0 +1,234 @@
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/*
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* DISTRHO glBars Plugin based on XMMS/XBMC "GL Bars"
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* Copyright (C) 1998-2000 Peter Alm, Mikael Alm, Olle Hallnas, Thomas Nilsson and 4Front Technologies
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* Copyright (C) 2000 Christian Zander <phoenix@minion.de>
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* Copyright (C) 2015 Nedko Arnaudov
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* Copyright (C) 2016-2019 Filipe Coelho <falktx@falktx.com>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* For a full copy of the license see the LICENSE file.
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*/
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#ifndef GLBARS_STATE_HPP_INCLUDED
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#define GLBARS_STATE_HPP_INCLUDED
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#include "plugin.hpp"
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static inline
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void draw_rectangle(GLfloat x1, GLfloat y1, GLfloat z1, GLfloat x2, GLfloat y2, GLfloat z2)
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{
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if (y1 == y2)
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{
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glVertex3f(x1, y1, z1);
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glVertex3f(x2, y1, z1);
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glVertex3f(x2, y2, z2);
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glVertex3f(x2, y2, z2);
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glVertex3f(x1, y2, z2);
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glVertex3f(x1, y1, z1);
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}
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else
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{
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glVertex3f(x1, y1, z1);
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glVertex3f(x2, y1, z2);
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glVertex3f(x2, y2, z2);
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glVertex3f(x2, y2, z2);
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glVertex3f(x1, y2, z1);
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glVertex3f(x1, y1, z1);
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}
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}
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static inline
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void draw_bar(GLenum mode, GLfloat x_offset, GLfloat z_offset, GLfloat height, GLfloat red, GLfloat green, GLfloat blue)
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{
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const GLfloat width = 0.1;
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if (mode == GL_POINT)
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glColor3f(0.2, 1.0, 0.2);
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if (mode != GL_POINT)
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{
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glColor3f(red,green,blue);
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draw_rectangle(x_offset, height, z_offset, x_offset + width, height, z_offset + 0.1);
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}
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draw_rectangle(x_offset, 0, z_offset, x_offset + width, 0, z_offset + 0.1);
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if (mode != GL_POINT)
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{
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glColor3f(0.5 * red, 0.5 * green, 0.5 * blue);
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draw_rectangle(x_offset, 0.0, z_offset + 0.1, x_offset + width, height, z_offset + 0.1);
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}
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draw_rectangle(x_offset, 0.0, z_offset, x_offset + width, height, z_offset );
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if (mode != GL_POINT)
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{
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glColor3f(0.25 * red, 0.25 * green, 0.25 * blue);
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draw_rectangle(x_offset, 0.0, z_offset , x_offset, height, z_offset + 0.1);
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}
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draw_rectangle(x_offset + width, 0.0, z_offset , x_offset + width, height, z_offset + 0.1);
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}
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struct glBarsState {
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GLenum g_mode;
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GLfloat x_angle, x_speed;
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GLfloat y_angle, y_speed;
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GLfloat z_angle, z_speed;
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GLfloat heights[16][16], cHeights[16][16], scale;
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GLfloat hSpeed;
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glBarsState()
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{
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g_mode = GL_FILL;
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x_angle = 20.0;
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x_speed = 0.0;
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y_angle = 15.0; // was 45
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y_speed = 0.5;
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z_angle = 0.0;
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z_speed = 0.0;
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// Set "Bar Height"
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scale = 1.f / log(256.f); // "Default" / standard
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//scale = 2.f / log(256.f); // "Big"
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//scale = 3.f / log(256.f); // "Very Big" / real big
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//scale = 0.33f / log(256.f); // unused
|
||||||
|
//scale = 0.5f / log(256.f); // "Small"
|
||||||
|
|
||||||
|
// Set "Speed"
|
||||||
|
//hSpeed = 0.025f; // "Slow"
|
||||||
|
hSpeed = 0.0125f; // "Default"
|
||||||
|
//hSpeed = 0.1f; // "Fast"
|
||||||
|
//hSpeed = 0.2f; // "Very Fast"
|
||||||
|
//hSpeed = 0.05f; // "Very Slow"
|
||||||
|
|
||||||
|
for (int x = 0; x < 16; x++)
|
||||||
|
{
|
||||||
|
for (int y = 0; y < 16; y++)
|
||||||
|
cHeights[y][x] = heights[y][x] = 0;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
void drawBars()
|
||||||
|
{
|
||||||
|
GLfloat x_offset, z_offset, r_base, b_base;
|
||||||
|
|
||||||
|
glClear(GL_DEPTH_BUFFER_BIT);
|
||||||
|
glPushMatrix();
|
||||||
|
glTranslatef(0.0,-0.5,-5.0);
|
||||||
|
glRotatef(x_angle,1.0,0.0,0.0);
|
||||||
|
glRotatef(y_angle,0.0,1.0,0.0);
|
||||||
|
glRotatef(z_angle,0.0,0.0,1.0);
|
||||||
|
|
||||||
|
glPolygonMode(GL_FRONT_AND_BACK, g_mode);
|
||||||
|
glBegin(GL_TRIANGLES);
|
||||||
|
|
||||||
|
for (int y = 0; y < 16; y++)
|
||||||
|
{
|
||||||
|
z_offset = -1.6 + ((15 - y) * 0.2);
|
||||||
|
|
||||||
|
b_base = y * (1.0 / 15);
|
||||||
|
r_base = 1.0 - b_base;
|
||||||
|
|
||||||
|
for (int x = 0; x < 16; x++)
|
||||||
|
{
|
||||||
|
x_offset = -1.6 + ((float)x * 0.2);
|
||||||
|
if (::fabs(cHeights[y][x]-heights[y][x])>hSpeed)
|
||||||
|
{
|
||||||
|
if (cHeights[y][x]<heights[y][x])
|
||||||
|
cHeights[y][x] += hSpeed;
|
||||||
|
else
|
||||||
|
cHeights[y][x] -= hSpeed;
|
||||||
|
}
|
||||||
|
draw_bar(g_mode, x_offset, z_offset,
|
||||||
|
cHeights[y][x], r_base - (float(x) * (r_base / 15.0)),
|
||||||
|
(float)x * (1.0 / 15), b_base /*, 16*y+x*/);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
glEnd();
|
||||||
|
glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
|
||||||
|
glPopMatrix();
|
||||||
|
}
|
||||||
|
|
||||||
|
void Render()
|
||||||
|
{
|
||||||
|
glDisable(GL_BLEND);
|
||||||
|
glMatrixMode(GL_PROJECTION);
|
||||||
|
glPushMatrix();
|
||||||
|
glLoadIdentity();
|
||||||
|
glFrustum(-1, 1, -1, 1, 1.5, 10);
|
||||||
|
glMatrixMode(GL_MODELVIEW);
|
||||||
|
glPushMatrix();
|
||||||
|
glLoadIdentity();
|
||||||
|
glEnable(GL_DEPTH_TEST);
|
||||||
|
glDepthFunc(GL_LESS);
|
||||||
|
//glPolygonMode(GL_FRONT, GL_FILL);
|
||||||
|
//glPolygonMode(GL_BACK, GL_FILL);
|
||||||
|
|
||||||
|
x_angle += x_speed;
|
||||||
|
if (x_angle >= 360.0)
|
||||||
|
x_angle -= 360.0;
|
||||||
|
|
||||||
|
y_angle += y_speed;
|
||||||
|
if (y_angle >= 360.0)
|
||||||
|
y_angle -= 360.0;
|
||||||
|
|
||||||
|
z_angle += z_speed;
|
||||||
|
if (z_angle >= 360.0)
|
||||||
|
z_angle -= 360.0;
|
||||||
|
|
||||||
|
drawBars();
|
||||||
|
|
||||||
|
glPopMatrix();
|
||||||
|
glMatrixMode(GL_PROJECTION);
|
||||||
|
glPopMatrix();
|
||||||
|
glDisable(GL_DEPTH_TEST);
|
||||||
|
glEnable(GL_BLEND);
|
||||||
|
}
|
||||||
|
|
||||||
|
void AudioData(const float* pAudioData, int iAudioDataLength)
|
||||||
|
{
|
||||||
|
const int xscale[] = {0, 1, 2, 3, 5, 7, 10, 14, 20, 28, 40, 54, 74, 101, 137, 187, 255};
|
||||||
|
|
||||||
|
GLfloat val;
|
||||||
|
|
||||||
|
for (int y = 15; y > 0; y--)
|
||||||
|
{
|
||||||
|
for (int i = 0; i < 16; i++)
|
||||||
|
heights[y][i] = heights[y - 1][i];
|
||||||
|
}
|
||||||
|
|
||||||
|
for (int i = 0; i < 16; i++)
|
||||||
|
{
|
||||||
|
int y = 0;
|
||||||
|
for (int c = xscale[i]; c < xscale[i + 1]; c++)
|
||||||
|
{
|
||||||
|
if (c<iAudioDataLength)
|
||||||
|
{
|
||||||
|
if ((int)(pAudioData[c] * (INT16_MAX)) > y)
|
||||||
|
y = (int)(pAudioData[c] * (INT16_MAX));
|
||||||
|
}
|
||||||
|
else
|
||||||
|
{
|
||||||
|
continue;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
y >>= 7;
|
||||||
|
if (y > 0)
|
||||||
|
val = (logf(y) * scale);
|
||||||
|
else
|
||||||
|
val = 0;
|
||||||
|
heights[0][i] = val;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
};
|
||||||
|
|
||||||
|
#endif // GLBARS_STATE_HPP_INCLUDED
|
||||||
|
|
@ -23,5 +23,6 @@ using namespace rack;
|
||||||
|
|
||||||
extern Plugin* pluginInstance;
|
extern Plugin* pluginInstance;
|
||||||
|
|
||||||
|
extern Model* modelGlBars;
|
||||||
extern Model* modelHostParameters;
|
extern Model* modelHostParameters;
|
||||||
extern Model* modelHostTime;
|
extern Model* modelHostTime;
|
||||||
|
|
|
||||||
|
|
@ -373,6 +373,7 @@ static void initStatic__Cardinal()
|
||||||
const StaticPluginLoader spl(p, "Cardinal");
|
const StaticPluginLoader spl(p, "Cardinal");
|
||||||
if (spl.ok())
|
if (spl.ok())
|
||||||
{
|
{
|
||||||
|
p->addModel(modelGlBars);
|
||||||
p->addModel(modelHostParameters);
|
p->addModel(modelHostParameters);
|
||||||
p->addModel(modelHostTime);
|
p->addModel(modelHostTime);
|
||||||
}
|
}
|
||||||
|
|
|
||||||
|
|
@ -522,6 +522,20 @@ protected:
|
||||||
fContext->patch->loadAction(filename);
|
fContext->patch->loadAction(filename);
|
||||||
}
|
}
|
||||||
|
|
||||||
|
#if 0
|
||||||
|
void uiReshape(const uint width, const uint height) override
|
||||||
|
{
|
||||||
|
glEnable(GL_BLEND);
|
||||||
|
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
|
||||||
|
glMatrixMode(GL_PROJECTION);
|
||||||
|
glLoadIdentity();
|
||||||
|
glOrtho(0.0, width, 0.0, height, -1.0, 1.0);
|
||||||
|
glViewport(0, 0, width, height);
|
||||||
|
glMatrixMode(GL_MODELVIEW);
|
||||||
|
glLoadIdentity();
|
||||||
|
}
|
||||||
|
#endif
|
||||||
|
|
||||||
private:
|
private:
|
||||||
/**
|
/**
|
||||||
Set our UI class as non-copyable and add a leak detector just in case.
|
Set our UI class as non-copyable and add a leak detector just in case.
|
||||||
|
|
|
||||||
Loading…
Add table
Add a link
Reference in a new issue