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Cardinal
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Tests for integrated opengl widgets in vcv canvas

tags/22.02
falkTX 3 years ago
parent
83f0cde441
commit
9b254bbc12
8 changed files with 488 additions and 2 deletions
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  1. +9
    -0
      plugins/Cardinal/plugin.json
  2. +128
    -0
      plugins/Cardinal/res/glBars.svg
  3. +2
    -2
      plugins/Cardinal/src/HostParameters.cpp
  4. +99
    -0
      plugins/Cardinal/src/glBars.cpp
  5. +234
    -0
      plugins/Cardinal/src/glBars.hpp
  6. +1
    -0
      plugins/Cardinal/src/plugin.hpp
  7. +1
    -0
      plugins/plugins.cpp
  8. +14
    -0
      src/CardinalUI.cpp

+ 9
- 0
plugins/Cardinal/plugin.json View File

@@ -30,6 +30,15 @@
"tags": [
"Utility"
]
},
{
"slug": "glBars",
"disabled": false,
"name": "glBars",
"description": "OpenGL bars visualization, as seen in XMMS and XBMC/Kodi",
"tags": [
"Visual"
]
}
]
}

+ 128
- 0
plugins/Cardinal/res/glBars.svg View File

@@ -0,0 +1,128 @@
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<!-- Created with Inkscape (http://www.inkscape.org/) -->

<svg
width="131.44501mm"
height="128.5mm"
viewBox="0 0 131.44501 128.5"
version="1.1"
id="svg4620"
inkscape:version="1.1.1 (c3084ef, 2021-09-22)"
sodipodi:docname="glBars.svg"
xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
xmlns:xlink="http://www.w3.org/1999/xlink"
xmlns="http://www.w3.org/2000/svg"
xmlns:svg="http://www.w3.org/2000/svg"
xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
xmlns:cc="http://creativecommons.org/ns#"
xmlns:dc="http://purl.org/dc/elements/1.1/">
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offset="1"
id="stop867" />
</linearGradient>
<style
id="style6"
type="text/css">
.str0 {stroke:#565656;stroke-width:0.0966867}
.str1 {stroke:#4F4F4F;stroke-width:0.193345}
.fil0 {fill:none}
.fil2 {fill:#2B2A29}
.fil1 {fill:#6B6B6B}
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</defs>
<sodipodi:namedview
id="base"
pagecolor="#ffffff"
bordercolor="#666666"
borderopacity="1.0"
inkscape:pageopacity="0.0"
inkscape:pageshadow="2"
inkscape:zoom="5.6568543"
inkscape:cx="15.556349"
inkscape:cy="51.176853"
inkscape:document-units="mm"
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showgrid="false"
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inkscape:window-y="25"
inkscape:window-maximized="1"
inkscape:pagecheckerboard="0"
width="45.72mm"
units="in" />
<metadata
id="metadata4617">
<rdf:RDF>
<cc:Work
rdf:about="">
<dc:format>image/svg+xml</dc:format>
<dc:type
rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
</cc:Work>
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<g
inkscape:label="Layer 1"
inkscape:groupmode="layer"
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transform="translate(0,-168.5)">
<rect
style="opacity:1;fill:url(#linearGradient871);fill-opacity:1;stroke-width:0.533853;stroke-miterlimit:4;stroke-dasharray:none"
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y="168.50089" />
<g
style="fill-rule:evenodd"
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transform="matrix(6.342689,0,0,6.342689,1.7430866,175.6457)">
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inkscape:label="Layer 1"
inkscape:groupmode="layer">
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</svg>

+ 2
- 2
plugins/Cardinal/src/HostParameters.cpp View File

@@ -38,10 +38,10 @@ struct CardinalPluginContext : rack::Context {

END_NAMESPACE_DISTRHO

USE_NAMESPACE_DISTRHO;

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

USE_NAMESPACE_DISTRHO;

struct HostParameters : Module {
enum ParamIds {
NUM_PARAMS


+ 99
- 0
plugins/Cardinal/src/glBars.cpp View File

@@ -0,0 +1,99 @@
/*
* DISTRHO Cardinal Plugin
* Copyright (C) 2021 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 3 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 LICENSE file.
*/

#include "glBars.hpp"

#define SAMPLES_PER_DRAW 256

struct glBarsModule : Module {
enum ParamIds {
NUM_PARAMS
};
enum InputIds {
IN1_INPUT,
NUM_INPUTS
};
enum OutputIds {
NUM_OUTPUTS
};
enum LightIds {
NUM_LIGHTS
};

glBarsState state;
float audioData[SAMPLES_PER_DRAW];
uint audioDataFill = 0;

glBarsModule() {
config(NUM_PARAMS, NUM_INPUTS, NUM_OUTPUTS, NUM_LIGHTS);
}

void process(const ProcessArgs&) override {
audioData[audioDataFill++] = inputs[IN1_INPUT].getVoltage();

if (audioDataFill == SAMPLES_PER_DRAW) {
audioDataFill = 0;
state.AudioData(audioData, SAMPLES_PER_DRAW);
}
}
};

struct glBarsRendererWidget : OpenGlWidget {
glBarsModule* const glBars;

glBarsRendererWidget(glBarsModule* const module)
: glBars(module) {}

void drawFramebuffer() override {
math::Vec fbSize = getFramebufferSize();
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glOrtho(0.0, fbSize.x, fbSize.y, 0.0, 0.0, 1.0);
glViewport(0.0, 0.0, fbSize.x, fbSize.y);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();

// glDisable(GL_CULL_FACE);
// glDisable(GL_STENCIL_TEST);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);
glBars->state.Render();
}
};

struct glBarsWidget : ModuleWidget {
glBarsRendererWidget* const glBarsRenderer;

glBarsWidget(glBarsModule* const module)
: glBarsRenderer(new glBarsRendererWidget(module))
{
setModule(module);
setPanel(APP->window->loadSvg(asset::plugin(pluginInstance, "res/glBars.svg")));

addChild(createWidget<ScrewSilver>(Vec(0, 0)));
addChild(createWidget<ScrewSilver>(Vec(0, RACK_GRID_HEIGHT - RACK_GRID_WIDTH)));
addChild(createWidget<ScrewSilver>(Vec(RACK_GRID_WIDTH, 0)));
addChild(createWidget<ScrewSilver>(Vec(RACK_GRID_WIDTH, RACK_GRID_HEIGHT - RACK_GRID_WIDTH)));

glBarsRenderer->box.pos = Vec(2 * RACK_GRID_WIDTH, 0);
glBarsRenderer->box.size = Vec(box.size.x - 2 * RACK_GRID_WIDTH, box.size.y);
addChild(glBarsRenderer);

addInput(createInput<PJ301MPort>(Vec(3, 54), module, glBarsModule::IN1_INPUT));
}
};

Model* modelGlBars = createModel<glBarsModule, glBarsWidget>("glBars");

+ 234
- 0
plugins/Cardinal/src/glBars.hpp View File

@@ -0,0 +1,234 @@
/*
* DISTRHO glBars Plugin based on XMMS/XBMC "GL Bars"
* Copyright (C) 1998-2000 Peter Alm, Mikael Alm, Olle Hallnas, Thomas Nilsson and 4Front Technologies
* Copyright (C) 2000 Christian Zander <phoenix@minion.de>
* Copyright (C) 2015 Nedko Arnaudov
* Copyright (C) 2016-2019 Filipe Coelho <falktx@falktx.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.
*
* 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.
*
* For a full copy of the license see the LICENSE file.
*/

#ifndef GLBARS_STATE_HPP_INCLUDED
#define GLBARS_STATE_HPP_INCLUDED

#include "plugin.hpp"

static inline
void draw_rectangle(GLfloat x1, GLfloat y1, GLfloat z1, GLfloat x2, GLfloat y2, GLfloat z2)
{
if (y1 == y2)
{
glVertex3f(x1, y1, z1);
glVertex3f(x2, y1, z1);
glVertex3f(x2, y2, z2);

glVertex3f(x2, y2, z2);
glVertex3f(x1, y2, z2);
glVertex3f(x1, y1, z1);
}
else
{
glVertex3f(x1, y1, z1);
glVertex3f(x2, y1, z2);
glVertex3f(x2, y2, z2);

glVertex3f(x2, y2, z2);
glVertex3f(x1, y2, z1);
glVertex3f(x1, y1, z1);
}
}

static inline
void draw_bar(GLenum mode, GLfloat x_offset, GLfloat z_offset, GLfloat height, GLfloat red, GLfloat green, GLfloat blue)
{
const GLfloat width = 0.1;

if (mode == GL_POINT)
glColor3f(0.2, 1.0, 0.2);

if (mode != GL_POINT)
{
glColor3f(red,green,blue);
draw_rectangle(x_offset, height, z_offset, x_offset + width, height, z_offset + 0.1);
}
draw_rectangle(x_offset, 0, z_offset, x_offset + width, 0, z_offset + 0.1);

if (mode != GL_POINT)
{
glColor3f(0.5 * red, 0.5 * green, 0.5 * blue);
draw_rectangle(x_offset, 0.0, z_offset + 0.1, x_offset + width, height, z_offset + 0.1);
}
draw_rectangle(x_offset, 0.0, z_offset, x_offset + width, height, z_offset );

if (mode != GL_POINT)
{
glColor3f(0.25 * red, 0.25 * green, 0.25 * blue);
draw_rectangle(x_offset, 0.0, z_offset , x_offset, height, z_offset + 0.1);
}
draw_rectangle(x_offset + width, 0.0, z_offset , x_offset + width, height, z_offset + 0.1);
}

struct glBarsState {
GLenum g_mode;
GLfloat x_angle, x_speed;
GLfloat y_angle, y_speed;
GLfloat z_angle, z_speed;
GLfloat heights[16][16], cHeights[16][16], scale;
GLfloat hSpeed;

glBarsState()
{
g_mode = GL_FILL;
x_angle = 20.0;
x_speed = 0.0;
y_angle = 15.0; // was 45
y_speed = 0.5;
z_angle = 0.0;
z_speed = 0.0;

// Set "Bar Height"
scale = 1.f / log(256.f); // "Default" / standard
//scale = 2.f / log(256.f); // "Big"
//scale = 3.f / log(256.f); // "Very Big" / real big
//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

+ 1
- 0
plugins/Cardinal/src/plugin.hpp View File

@@ -23,5 +23,6 @@ using namespace rack;

extern Plugin* pluginInstance;

extern Model* modelGlBars;
extern Model* modelHostParameters;
extern Model* modelHostTime;

+ 1
- 0
plugins/plugins.cpp View File

@@ -373,6 +373,7 @@ static void initStatic__Cardinal()
const StaticPluginLoader spl(p, "Cardinal");
if (spl.ok())
{
p->addModel(modelGlBars);
p->addModel(modelHostParameters);
p->addModel(modelHostTime);
}


+ 14
- 0
src/CardinalUI.cpp View File

@@ -522,6 +522,20 @@ protected:
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:
/**
Set our UI class as non-copyable and add a leak detector just in case.


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