191 lines
3.4 KiB
C++
191 lines
3.4 KiB
C++
#include "oslib/audiobackend_directsound.h"
|
|
#if HOST_OS==OS_WINDOWS
|
|
#include "oslib.h"
|
|
#include <initguid.h>
|
|
#include <dsound.h>
|
|
|
|
void* SoundThread(void* param);
|
|
#define V2_BUFFERSZ (16*1024)
|
|
|
|
IDirectSound8* dsound;
|
|
IDirectSoundBuffer8* buffer;
|
|
|
|
u32 ds_ring_size;
|
|
|
|
static void directsound_init()
|
|
{
|
|
verifyc(DirectSoundCreate8(NULL,&dsound,NULL));
|
|
|
|
verifyc(dsound->SetCooperativeLevel((HWND)libPvr_GetRenderTarget(),DSSCL_PRIORITY));
|
|
IDirectSoundBuffer* buffer_;
|
|
|
|
WAVEFORMATEX wfx;
|
|
DSBUFFERDESC desc;
|
|
|
|
// Set up WAV format structure.
|
|
|
|
memset(&wfx, 0, sizeof(WAVEFORMATEX));
|
|
wfx.wFormatTag = WAVE_FORMAT_PCM;
|
|
wfx.nChannels = 2;
|
|
wfx.nSamplesPerSec = 44100;
|
|
wfx.nBlockAlign = 4;
|
|
wfx.nAvgBytesPerSec = wfx.nSamplesPerSec * wfx.nBlockAlign;
|
|
wfx.wBitsPerSample = 16;
|
|
|
|
// Set up DSBUFFERDESC structure.
|
|
|
|
ds_ring_size=8192*wfx.nBlockAlign;
|
|
|
|
memset(&desc, 0, sizeof(DSBUFFERDESC));
|
|
desc.dwSize = sizeof(DSBUFFERDESC);
|
|
desc.dwFlags = DSBCAPS_GETCURRENTPOSITION2 | DSBCAPS_CTRLPOSITIONNOTIFY;// _CTRLPAN | DSBCAPS_CTRLVOLUME | DSBCAPS_CTRLFREQUENCY;
|
|
|
|
desc.dwBufferBytes = ds_ring_size;
|
|
desc.lpwfxFormat = &wfx;
|
|
|
|
|
|
|
|
if (settings.aica.HW_mixing==0)
|
|
{
|
|
desc.dwFlags |=DSBCAPS_LOCSOFTWARE;
|
|
}
|
|
else if (settings.aica.HW_mixing==1)
|
|
{
|
|
desc.dwFlags |=DSBCAPS_LOCHARDWARE;
|
|
}
|
|
else if (settings.aica.HW_mixing==2)
|
|
{
|
|
//auto
|
|
}
|
|
else
|
|
{
|
|
die("settings.HW_mixing: Invalid value");
|
|
}
|
|
|
|
if (settings.aica.GlobalFocus)
|
|
desc.dwFlags|=DSBCAPS_GLOBALFOCUS;
|
|
|
|
verifyc(dsound->CreateSoundBuffer(&desc,&buffer_,0));
|
|
verifyc(buffer_->QueryInterface(IID_IDirectSoundBuffer8,(void**)&buffer));
|
|
buffer_->Release();
|
|
|
|
//Play the buffer !
|
|
verifyc(buffer->Play(0,0,DSBPLAY_LOOPING));
|
|
|
|
}
|
|
|
|
|
|
DWORD wc=0;
|
|
|
|
|
|
static int directsound_getfreesz()
|
|
{
|
|
DWORD pc,wch;
|
|
|
|
buffer->GetCurrentPosition(&pc,&wch);
|
|
|
|
int fsz=0;
|
|
if (wc>=pc)
|
|
fsz=ds_ring_size-wc+pc;
|
|
else
|
|
fsz=pc-wc;
|
|
|
|
fsz-=32;
|
|
return fsz;
|
|
}
|
|
|
|
static int directsound_getusedSamples()
|
|
{
|
|
return (ds_ring_size-directsound_getfreesz())/4;
|
|
}
|
|
|
|
static u32 directsound_push_nw(void* frame, u32 samplesb)
|
|
{
|
|
DWORD pc,wch;
|
|
|
|
u32 bytes=samplesb*4;
|
|
|
|
buffer->GetCurrentPosition(&pc,&wch);
|
|
|
|
int fsz=0;
|
|
if (wc>=pc)
|
|
fsz=ds_ring_size-wc+pc;
|
|
else
|
|
fsz=pc-wc;
|
|
|
|
fsz-=32;
|
|
|
|
//printf("%d: r:%d w:%d (f:%d wh:%d)\n",fsz>bytes,pc,wc,fsz,wch);
|
|
|
|
if (fsz>bytes)
|
|
{
|
|
void* ptr1,* ptr2;
|
|
DWORD ptr1sz,ptr2sz;
|
|
|
|
u8* data=(u8*)frame;
|
|
|
|
buffer->Lock(wc,bytes,&ptr1,&ptr1sz,&ptr2,&ptr2sz,0);
|
|
memcpy(ptr1,data,ptr1sz);
|
|
if (ptr2sz)
|
|
{
|
|
data+=ptr1sz;
|
|
memcpy(ptr2,data,ptr2sz);
|
|
}
|
|
|
|
buffer->Unlock(ptr1,ptr1sz,ptr2,ptr2sz);
|
|
wc=(wc+bytes)%ds_ring_size;
|
|
return 1;
|
|
}
|
|
return 0;
|
|
//ds_ring_size
|
|
}
|
|
|
|
static u32 directsound_push(void* frame, u32 samples, bool wait)
|
|
{
|
|
|
|
u16* f=(u16*)frame;
|
|
|
|
bool w=false;
|
|
|
|
for (u32 i = 0; i < samples*2; i++)
|
|
{
|
|
if (f[i])
|
|
{
|
|
w = true;
|
|
break;
|
|
}
|
|
}
|
|
|
|
wait &= w;
|
|
|
|
int ffs=1;
|
|
|
|
/*
|
|
while (directsound_IsAudioBufferedLots() && wait)
|
|
if (ffs == 0)
|
|
ffs = printf("AUD WAIT %d\n", directsound_getusedSamples());
|
|
*/
|
|
|
|
while (!directsound_push_nw(frame, samples) && wait)
|
|
0 && printf("FAILED waiting on audio FAILED %d\n", directsound_getusedSamples());
|
|
|
|
return 1;
|
|
}
|
|
|
|
static void directsound_term()
|
|
{
|
|
buffer->Stop();
|
|
|
|
buffer->Release();
|
|
dsound->Release();
|
|
}
|
|
|
|
audiobackend_t audiobackend_directsound = {
|
|
"directsound", // Slug
|
|
"Microsoft DirectSound", // Name
|
|
&directsound_init,
|
|
&directsound_push,
|
|
&directsound_term
|
|
};
|
|
#endif
|