tone-driver-sdl2

tone-driver-sdl2 is a simple SDL2-based audio emulator that replicates a piezo buzzer's square wave tones. It provides a drop-in replacement for the Sound::note(int n, int octave) function, enabling PC playback of embedded game sounds.

Features

• Generates square wave tones matching ATtiny frequency logic
• Plays game sound effects like highScore(), gameOver(), and eating()
• Cross-platform, minimal dependencies (requires SDL2)

Directory Structure

├── CMakeLists.txt           # Build configuration
├── docs                     # Project documentation
│   └── html
├── Doxyfile
├── examples
│   ├── music-driver                      # Examples of how to use the music-driver
│   └── tone-driver-sdl2                  # Examples of how to use the tone-driver (cross-platform)
│       ├── major-scale.cpp
│       ├── precomputed-frequencies.cpp
│       ├── test-frequencies.cpp
│       └── test-tone.cpp
├── include
│   ├── music-components
│   ├── music-driver
│   ├── NoteName.h
│   ├── tone-driver              # Abstract base interface
│   │   └── ToneDriver.h
│   └── tone-driver-sdl2         # SDL2 implementation
│       └── ToneDriverSDL2.h
├── LICENSE
├── README.md
└── src                          # Implementation source files
    ├── music-components
    ├── music-driver
    └── tone-driver-sdl2
        └── ToneDriverSDL2.cpp

Usage

Build and run the included test program to hear sample tones:

mkdir build && cd build
cmake ..
make
./tone_driver_sdl2

Integration

Replace the Sound::note method in your game code with the SDL2 implementation for PC testing without hardware.

Dependencies

SDL2 library (https://www.libsdl.org/)

Install by running the following command:

sudo apt install libsdl2-dev

Documentation

View Documentation