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haikuaudio: Untested attempt to get this working with SDL_AudioStream.
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@ -36,6 +36,7 @@ extern "C"
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#include "../SDL_audio_c.h"
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#include "../SDL_sysaudio.h"
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#include "SDL_haikuaudio.h"
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#include "SDL_assert.h"
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}
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@ -47,26 +48,39 @@ FillSound(void *device, void *stream, size_t len,
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const media_raw_audio_format & format)
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{
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SDL_AudioDevice *audio = (SDL_AudioDevice *) device;
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SDL_AudioCallback callback = audio->spec.callback;
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/* Only do soemthing if audio is enabled */
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if (!SDL_AtomicGet(&audio->enabled)) {
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/* Only do something if audio is enabled */
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if (!SDL_AtomicGet(&audio->enabled) || SDL_AtomicGet(&audio->paused)) {
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if (audio->stream) {
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SDL_AudioStreamClear(audio->stream);
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}
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SDL_memset(stream, audio->spec.silence, len);
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return;
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}
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if (!SDL_AtomicGet(&audio->paused)) {
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if (audio->convert.needed) {
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SDL_LockMutex(audio->mixer_lock);
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(*audio->spec.callback) (audio->spec.userdata,
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(Uint8 *) audio->convert.buf,
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audio->convert.len);
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SDL_UnlockMutex(audio->mixer_lock);
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SDL_ConvertAudio(&audio->convert);
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SDL_memcpy(stream, audio->convert.buf, audio->convert.len_cvt);
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} else {
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SDL_LockMutex(audio->mixer_lock);
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(*audio->spec.callback) (audio->spec.userdata,
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(Uint8 *) stream, len);
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SDL_UnlockMutex(audio->mixer_lock);
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SDL_assert(audio->spec.size == len);
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if (audio->stream == NULL) { /* no conversion necessary. */
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SDL_LockMutex(audio->mixer_lock);
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callback(audio->spec.userdata, stream, len);
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SDL_UnlockMutex(audio->mixer_lock);
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} else { /* streaming/converting */
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const int stream_len = audio->callbackspec.size;
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const int ilen = (int) len;
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while (SDL_AudioStreamAvailable(audio->stream) < ilen) {
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callback(audio->spec.userdata, audio->fake_stream, stream_len);
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if (SDL_AudioStreamPut(audio->stream, audio->fake_stream, stream_len) == -1) {
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SDL_AudioStreamClear(audio->stream);
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SDL_AtomicSet(&audio->enabled, 0);
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break;
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}
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}
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const int got = SDL_AudioStreamGet(audio->stream, ilen, stream, ilen);
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SDL_assert((got < 0) || (got == ilen));
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if (got != ilen) {
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SDL_memset(stream, audio->spec.silence, len);
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}
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}
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}
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