VGA/Audio/Audio.ino

Audio demo with GUI

/*
  Created by Fabrizio Di Vittorio (fdivitto2013@gmail.com) - <http://www.fabgl.com>
  Copyright (c) 2019-2022 Fabrizio Di Vittorio.
  All rights reserved.
 
 
* Please contact fdivitto2013@gmail.com if you need a commercial license.
 
 
* This library and related software is available under GPL v3.
 
  FabGL 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
  (at your option) any later version.
 
  FabGL 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 FabGL.  If not, see <http://www.gnu.org/licenses/>.
 */
 
 
 
#include "fabgl.h"
#include "fabui.h"
 
#include "speech.h"
#include "loop.h"
#include "mario.h"
 
 
fabgl::VGA16Controller DisplayController;
fabgl::PS2Controller   PS2Controller;
SoundGenerator         soundGenerator;
 
 
void setup()
{
  //Serial.begin(115200); delay(500); Serial.write("\n\nReset\n\n"); // DEBUG ONLY
 
  PS2Controller.begin(PS2Preset::KeyboardPort0_MousePort1, KbdMode::GenerateVirtualKeys);
 
  DisplayController.begin();
  DisplayController.setResolution(VGA_640x480_60Hz);
 
  // adjust this to center screen in your monitor
  //DisplayController.moveScreen(20, -2);
  //DisplayController.moveScreen(-6, 0);
}
 
 
class ChannelFrame : public uiFrame {
 
  SineWaveformGenerator sine;
  SquareWaveformGenerator square;
  NoiseWaveformGenerator noise;
  TriangleWaveformGenerator triangle;
  SawtoothWaveformGenerator sawtooth;
  SamplesGenerator loop = SamplesGenerator(loopSamples, sizeof(loopSamples));
  SamplesGenerator speech = SamplesGenerator(speechSamples, sizeof(speechSamples));
  SamplesGenerator mario = SamplesGenerator(marioSamples, sizeof(marioSamples));
  WaveformGenerator * curGen = nullptr;
 
  uiLabel * volumeLabel, * frequencyLabel;
  uiSlider * volumeSlider, * frequencySlider;
  uiComboBox * genComboBox;
  uiCheckBox * enableCheck;
 
public:
 
  ChannelFrame(uiWindow * parent)
   : uiFrame(parent, "", Point(0, 0), Size(408, 80))
  {
    static int channel_ = 0;
    static int y = 4, x = 4;
    static int startingFreq = 150;
 
    app()->moveWindow(this, x, y);
    y += size().height + 4;
    if (y + size().height > parent->size().height) {
      x += 25;
      y = x;
    }
 
    frameProps().resizeable = false;
    frameProps().hasCloseButton = false;
 
    setTitleFmt("Channel %d", ++channel_);
 
    // volume slider
    volumeLabel = new uiLabel(this, "", Point(5, 20));
    volumeSlider = new uiSlider(this, Point(72, 19), Size(150, 17), uiOrientation::Horizontal);
    volumeSlider->onChange = [&]() {
      volumeLabel->setTextFmt("Volume %d", volumeSlider->position());
      if (curGen)
        curGen->setVolume(volumeSlider->position());
    };
    volumeSlider->setup(0, 127, 16);
    volumeSlider->setPosition(100);
 
    // generator combobox
    new uiStaticLabel(this, "Type", Point(230, 20));
    genComboBox = new uiComboBox(this, Point(260, 20), Size(140, 16), 35);
    genComboBox->listBoxStyle().textFont = &fabgl::FONT_std_12;
    genComboBox->textEditStyle().textFont = &fabgl::FONT_std_12;
    genComboBox->items().append("Sine Wave");
    genComboBox->items().append("Square Wave");
    genComboBox->items().append("Triangle Wave");
    genComboBox->items().append("Sawtooth Wave");
    genComboBox->items().append("Noise");
    genComboBox->items().append("Loop");
    genComboBox->items().append("Speech");
    genComboBox->items().append("Mario");
    genComboBox->selectItem(0);
    genComboBox->onChange = [&]() {
      setGenerator(genComboBox->selectedItem());
    };
 
    // frequency slider
    frequencyLabel = new uiLabel(this, "", Point(5, 39));
    frequencySlider = new uiSlider(this, Point(72, 38), Size(330, 17), uiOrientation::Horizontal);
    frequencySlider->onChange = [&]() {
      frequencyLabel->setTextFmt("Freq %d Hz", frequencySlider->position());
      if (curGen)
        curGen->setFrequency(frequencySlider->position());
    };
    frequencySlider->setup(0, 8000, 500);
    frequencySlider->setPosition(startingFreq);
    startingFreq += 50;
 
    // enable checkbox
    new uiStaticLabel(this, "Enable", Point(5, 76-17));
    enableCheck = new uiCheckBox(this, Point(77, 75-17), Size(17, 17));
    enableCheck->onChange = [&]() {
      if (curGen)
        curGen->enable(enableCheck->checked());
    };
 
    // set default generator
    setGenerator(0);
  }
 
  void setGenerator(int index) {
    soundGenerator.detach(curGen);
    switch (index) {
      case 0:
        curGen = &sine;
        break;
      case 1:
        curGen = &square;
        break;
      case 2:
        curGen = &triangle;
        break;
      case 3:
        curGen = &sawtooth;
        break;
      case 4:
        curGen = &noise;
        break;
      case 5:
        curGen = &loop;
        break;
      case 6:
        curGen = &speech;
        break;
      case 7:
        curGen = &mario;
        break;
    }
    soundGenerator.attach(curGen);
    curGen->enable(enableCheck->checked());
    curGen->setFrequency(frequencySlider->position());
  }
};
 
 
class CommandsFrame : public uiFrame {
 
public:
  CommandsFrame(uiWindow * parent)
   : uiFrame(parent, "Main Controls", Point(500, 4), Size(133, 200))
  {
    frameStyle().titleFont = &fabgl::FONT_std_12;
    frameProps().resizeable = false;
    frameProps().hasMaximizeButton = false;
    frameProps().hasMinimizeButton = false;
    frameProps().hasCloseButton = false;
 
    auto addChannelBtn = new uiButton(this, "Add Channel", Point(7, 22), Size(80, 16));
    addChannelBtn->onClick = [=]() {
      if (heap_caps_get_free_size(MALLOC_CAP_8BIT) < 5000)
        app()->messageBox("Out of memory!", "I'm sorry, there is no more memory available!", "OK");
      else
        new ChannelFrame(parent);
    };
 
    auto resetBtn = new uiButton(this, "Reset", Point(7, 45), Size(80, 16));
    resetBtn->onClick = [=]() {
      if (app()->messageBox("Reset ESP32", "Are you sure?", "Yes", "No", nullptr, uiMessageBoxIcon::Question) == uiMessageBoxResult::Button1)
        ESP.restart();
    };
    
    // global enable checkbox
    new uiStaticLabel(this, "Enable", Point(7, 70));
    auto enableCheck = new uiCheckBox(this, Point(48, 68), Size(17, 17));
    enableCheck->setChecked(true);
    enableCheck->onChange = [=]() {
      soundGenerator.play(enableCheck->checked());
    };
 
    // main volume slider
    auto volumeLabel = new uiLabel(this, "", Point(90, 182));
    auto volumeSlider = new uiSlider(this, Point(100, 20), Size(17, 160), uiOrientation::Vertical);
    volumeSlider->onChange = [=]() {
      volumeLabel->setTextFmt("Vol %d", volumeSlider->position());
      soundGenerator.setVolume(volumeSlider->position());
    };
    volumeSlider->setup(0, 127, 16);
    volumeSlider->setPosition(100);
 
 
  }
 
};
 
 
class MyApp : public uiApp {
 
  void init() {
 
    rootWindow()->frameStyle().backgroundColor = RGB888(0, 0, 64);
 
    new ChannelFrame(rootWindow());
    new ChannelFrame(rootWindow());
    new ChannelFrame(rootWindow());
    new ChannelFrame(rootWindow());
 
    new CommandsFrame(rootWindow());
 
    soundGenerator.play(true);
 
  }
} app;
 
 
void loop()
{
  app.run(&DisplayController);
}