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sound, music, mixer

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This commit is contained in:
Ondřej Novák 2025-02-02 14:29:06 +01:00
parent 42087c926c
commit f8a1501289
42 changed files with 1345 additions and 157 deletions
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36
platform/sdl/sdl_context.cpp
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@ -24,6 +24,11 @@ void SDLContext::SDL_Deleter::operator ()(SDL_Texture* texture) {
SDL_DestroyTexture(texture);
}
void SDLContext::SDL_Audio_Deleter::operator()(void *x) {
SDL_AudioDeviceID id = reinterpret_cast<std::uintptr_t>(x);
SDL_CloseAudioDevice(id);
}
struct SDL_INIT_Context {
SDL_INIT_Context() {
@ -80,7 +85,7 @@ void SDLContext::generateCRTTexture(SDL_Renderer* renderer, SDL_Texture** textur
void SDLContext::init_video(const Config &config, const char *title) {
void SDLContext::init_video(const VideoConfig &config, const char *title) {
char buff[256];
static Uint32 update_request_event = SDL_RegisterEvents(1);
_update_request_event = update_request_event;
@ -502,3 +507,32 @@ SDL_Rect SDLContext::to_window_rect(const SDL_Rect &winrc, const SDL_Rect &sourc
void SDLContext::set_quit_callback(std::function<void()> fn) {
_quit_callback = std::move(fn);
}
SDLContext::AudioInfo SDLContext::init_audio(const AudioConfig &config, SDL_AudioCallback cb, void *cb_ctx) {
char buff[256];
_audio.reset();
SDL_AudioSpec aspec = {};
aspec.callback = cb;
aspec.userdata = cb_ctx;
aspec.channels = 2;
aspec.format = AUDIO_F32;
aspec.freq = 44100;
aspec.samples = 1024;
SDL_AudioSpec obtaied = {};
auto id = SDL_OpenAudioDevice(config.audioDevice, 0, &aspec, &obtaied, SDL_AUDIO_ALLOW_FREQUENCY_CHANGE|SDL_AUDIO_ALLOW_SAMPLES_CHANGE);
if (id < 1) {
snprintf(buff, sizeof(buff), "SDL Error create audio: %s\n", SDL_GetError());
throw std::runtime_error(buff);
}
_audio.reset(reinterpret_cast<void *>(id));
return {obtaied.freq};
}
void SDLContext::pause_audio(bool pause) {
SDL_AudioDeviceID id = reinterpret_cast<std::intptr_t>(_audio.get());
SDL_PauseAudioDevice(id, pause?1:0);
}
void SDLContext::close_audio() {
_audio.reset();
}