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Allow aluMixData to accept a NULL context for silence

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This commit is contained in:
Chris Robinson 2007-12-05 00:29:20 -08:00
parent 86cced248b
commit 15019b3871
4 changed files with 9 additions and 28 deletions
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2
Alc/ALu.c
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@ -414,7 +414,7 @@ ALvoid aluMixData(ALCcontext *ALContext,ALvoid *buffer,ALsizei size,ALenum forma
while(size > 0)
{
//Setup variables
ALSource = ALContext->Source;
ALSource = (ALContext ? ALContext->Source : NULL);
SamplesToDo = min(size, BUFFERSIZE);
//Clear mixing buffer

14
Alc/alsa.c
View File

@ -190,17 +190,9 @@ static ALuint ALSAProc(ALvoid *ptr)
}
SuspendContext(NULL);
if(pDevice->Context)
{
// If we have an active context, mix data directly into output
// buffer
WritePtr = (char*)areas->addr + (offset * areas->step / 8);
WriteCnt = psnd_pcm_frames_to_bytes(data->pcmHandle, frames);
aluMixData(pDevice->Context, WritePtr, WriteCnt, pDevice->Format);
}
else
psnd_pcm_areas_silence(areas, offset, pDevice->Channels, frames, data->format);
WritePtr = (char*)areas->addr + (offset * areas->step / 8);
WriteCnt = psnd_pcm_frames_to_bytes(data->pcmHandle, frames);
aluMixData(pDevice->Context, WritePtr, WriteCnt, pDevice->Format);
ProcessContext(NULL);
commitres = psnd_pcm_mmap_commit(data->pcmHandle, offset, frames);

16
Alc/dsound.c
View File

@ -87,18 +87,10 @@ static void CALLBACK DirectSoundProc(UINT uID,UINT uReserved,DWORD_PTR dwUser,DW
{
// If we have an active context, mix data directly into output buffer otherwise fill with silence
SuspendContext(NULL);
if(pDevice->Context)
{
if (WritePtr1)
aluMixData(pDevice->Context, WritePtr1, WriteCnt1, pDevice->Format);
if (WritePtr2)
aluMixData(pDevice->Context, WritePtr2, WriteCnt2, pDevice->Format);
}
else
{
if (WritePtr1) memset(WritePtr1, 0, WriteCnt1);
if (WritePtr2) memset(WritePtr2, 0, WriteCnt2);
}
if (WritePtr1)
aluMixData(pDevice->Context, WritePtr1, WriteCnt1, pDevice->Format);
if (WritePtr2)
aluMixData(pDevice->Context, WritePtr2, WriteCnt2, pDevice->Format);
ProcessContext(NULL);
// Unlock output buffer only when successfully locked

5
Alc/oss.c
View File

@ -80,10 +80,7 @@ static ALuint OSSProc(ALvoid *ptr)
while(!data->killNow)
{
SuspendContext(NULL);
if(pDevice->Context)
aluMixData(pDevice->Context,data->mix_data,data->data_size,pDevice->Format);
else
memset(data->mix_data,data->silence,data->data_size);
aluMixData(pDevice->Context,data->mix_data,data->data_size,pDevice->Format);
ProcessContext(NULL);
remaining = data->data_size;