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twn_audio.c: a lot of fixes, optional TWN_FEATURE_PUSH_AUDIO for converging game ticks and audio, proper .wav handling with resample

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veclavtalica
2025-01-13 23:52:55 +03:00
parent eefd53a630
commit 6298394957
3 changed files with 89 additions and 65 deletions
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10
src/twn_loop.c
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@ -232,6 +232,12 @@ static void main_loop(void) {
if (ctx.window_size_has_changed)
update_viewport();
game_object_tick();
#ifdef TWN_FEATURE_PUSH_AUDIO
static uint8_t audio_buffer[(AUDIO_FREQUENCY / 60) * sizeof (float) * 2];
audio_callback(NULL, audio_buffer, sizeof audio_buffer);
if (SDL_QueueAudio(ctx.audio_device, audio_buffer, sizeof audio_buffer))
CRY_SDL("Error queueing audio: ");
#endif
input_state_update(&ctx.input);
preserve_persistent_ctx_fields();
@ -560,12 +566,16 @@ static bool initialize(void) {
request.freq = AUDIO_FREQUENCY;
request.format = AUDIO_F32;
request.channels = 2;
#ifndef TWN_FEATURE_PUSH_AUDIO
request.callback = audio_callback;
#endif
/* TODO: check for errors */
ctx.audio_device = SDL_OpenAudioDevice(NULL, 0, &request, &got, 0);
ctx.audio_stream_format = got.format;
ctx.audio_stream_frequency = got.freq;
ctx.audio_stream_channel_count = got.channels;
/* TODO: relax this */
SDL_assert_always(got.freq == AUDIO_FREQUENCY);
SDL_assert_always(got.format == AUDIO_F32);
SDL_assert_always(got.channels == 2);