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git-svn-id: https://svn.eduke32.com/eduke32@1474 1a8010ca-5511-0410-912e-c29ae57300e0

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terminx 2009-07-28 08:10:26 +00:00
parent 71cc476cb8
commit c9c02c2773
1 changed files with 12 additions and 8 deletions
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20
polymer/eduke32/source/jaudiolib/src/driver_sdl.c
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@ -134,9 +134,11 @@ const char *SDLDrv_ErrorString( int32_t ErrorNumber )
int32_t SDLDrv_Init(int32_t mixrate, int32_t numchannels, int32_t samplebits, void * initdata)
{
Uint32 inited;
uint32_t inited;
int32_t err = 0;
int32_t chunksize;
UNREFERENCED_PARAMETER(numchannels);
UNREFERENCED_PARAMETER(initdata);
if (Initialised) {
@ -159,11 +161,13 @@ int32_t SDLDrv_Init(int32_t mixrate, int32_t numchannels, int32_t samplebits, vo
return SDLErr_Error;
}
// same problem occurs here as in the icculus driver...
// we need a dummy channel so we don't fuck up the music
// thus numchannels + 1 here
chunksize = 512;
err = Mix_OpenAudio(mixrate, (samplebits == 8) ? AUDIO_U8 : AUDIO_S16SYS, numchannels + 1, 512);
if (mixrate >= 16000) chunksize *= 2;
if (mixrate >= 32000) chunksize *= 2;
// allocate 4 channels: 2 for the game's SFX, 1 for music, and 1 for fillData()
err = Mix_OpenAudio(mixrate, (samplebits == 8) ? AUDIO_U8 : AUDIO_S16SYS, 4, chunksize);
if (err < 0) {
ErrorCode = SDLErr_OpenAudio;
@ -176,10 +180,10 @@ int32_t SDLDrv_Init(int32_t mixrate, int32_t numchannels, int32_t samplebits, vo
// dummy channel 2 runs our fillData() callback as an effect
Mix_RegisterEffect(2, fillData, NULL, NULL);
DummyBuffer = (uint8_t *) malloc(sizeof(intptr_t));
memset(DummyBuffer, 0, sizeof(intptr_t));
DummyBuffer = (uint8_t *) malloc(chunksize);
memset(DummyBuffer, 0, chunksize);
DummyChunk = Mix_QuickLoad_RAW(DummyBuffer, sizeof(intptr_t));
DummyChunk = Mix_QuickLoad_RAW(DummyBuffer, chunksize);
Mix_PlayChannel(2, DummyChunk, -1);