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GC/Wii: fix music

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This commit is contained in:
headshot2017 2024-03-29 04:19:45 -04:00
parent 2ecea55887
commit b443562b7f
1 changed files with 22 additions and 8 deletions
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30
src/AudioBackend.c
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@ -1144,6 +1144,7 @@ struct AudioContext {
int chanID, count, bufHead;
struct AudioBuffer bufs[AUDIO_MAX_BUFFERS];
int channels, sampleRate, volume;
cc_bool makeAvailable;
};
cc_bool AudioBackend_Init(void) {
@ -1161,21 +1162,34 @@ void AudioBackend_Free(void) {
void MusicCallback(s32 voice) {
struct AudioContext* ctx = &music_ctx;
struct AudioBuffer* buf = &ctx->bufs[ctx->bufHead];
struct AudioBuffer* nextBuf = &ctx->bufs[(ctx->bufHead + 1) % ctx->count];
if (ASND_AddVoice(voice, buf->samples, buf->size) == SND_OK) {
if (ASND_StatusVoice(voice) != SND_WORKING) return;
if (ASND_AddVoice(voice, nextBuf->samples, nextBuf->size) == SND_OK) {
ctx->bufHead = (ctx->bufHead + 1) % ctx->count;
buf->samples = NULL;
buf->available = true;
if (ctx->bufHead == 2) ctx->makeAvailable = true;
if (ctx->makeAvailable) {
int prev = ctx->bufHead - 2;
if (prev < 0) prev += 4;
ctx->bufs[prev].available = true;
}
}
int inUse;
Audio_Poll(ctx, &inUse);
if (!inUse) {
// music has finished, stop the voice so this function isn't called anymore
ASND_StopVoice(ctx->chanID);
}
}
cc_result Audio_Init(struct AudioContext* ctx, int buffers) {
ctx->chanID = -1;
ctx->count = buffers;
ctx->volume = 255;
ctx->bufHead = 0;
ctx->chanID = -1;
ctx->count = buffers;
ctx->volume = 255;
ctx->bufHead = 0;
ctx->makeAvailable = false;
Mem_Set(ctx->bufs, 0, sizeof(ctx->bufs));
for (int i = 0; i < buffers; i++) {