195 lines
3.2 KiB
C++
195 lines
3.2 KiB
C++
#include "types.h"
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#if HOST_OS==OS_WINDOWS
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#include <initguid.h>
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#include <dsound.h>
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#include "audiostream_rif.h"
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#include "oslib.h"
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void* SoundThread(void* param);
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#define V2_BUFFERSZ (16*1024)
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IDirectSound8* dsound;
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IDirectSoundBuffer8* buffer;
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u32 ds_ring_size;
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void os_InitAudio()
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{
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verifyc(DirectSoundCreate8(NULL,&dsound,NULL));
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verifyc(dsound->SetCooperativeLevel((HWND)libPvr_GetRenderTarget(),DSSCL_PRIORITY));
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IDirectSoundBuffer* buffer_;
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WAVEFORMATEX wfx;
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DSBUFFERDESC desc;
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// Set up WAV format structure.
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memset(&wfx, 0, sizeof(WAVEFORMATEX));
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wfx.wFormatTag = WAVE_FORMAT_PCM;
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wfx.nChannels = 2;
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wfx.nSamplesPerSec = 44100;
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wfx.nBlockAlign = 4;
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wfx.nAvgBytesPerSec = wfx.nSamplesPerSec * wfx.nBlockAlign;
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wfx.wBitsPerSample = 16;
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// Set up DSBUFFERDESC structure.
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ds_ring_size=8192*wfx.nBlockAlign;
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memset(&desc, 0, sizeof(DSBUFFERDESC));
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desc.dwSize = sizeof(DSBUFFERDESC);
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desc.dwFlags = DSBCAPS_GETCURRENTPOSITION2 | DSBCAPS_CTRLPOSITIONNOTIFY;// _CTRLPAN | DSBCAPS_CTRLVOLUME | DSBCAPS_CTRLFREQUENCY;
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desc.dwBufferBytes = ds_ring_size;
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desc.lpwfxFormat = &wfx;
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if (settings.aica.HW_mixing==0)
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{
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desc.dwFlags |=DSBCAPS_LOCSOFTWARE;
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}
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else if (settings.aica.HW_mixing==1)
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{
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desc.dwFlags |=DSBCAPS_LOCHARDWARE;
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}
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else if (settings.aica.HW_mixing==2)
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{
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//auto
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}
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else
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{
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die("settings.HW_mixing: Invalid value");
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}
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if (settings.aica.GlobalFocus)
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desc.dwFlags|=DSBCAPS_GLOBALFOCUS;
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verifyc(dsound->CreateSoundBuffer(&desc,&buffer_,0));
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verifyc(buffer_->QueryInterface(IID_IDirectSoundBuffer8,(void**)&buffer));
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buffer_->Release();
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//Play the buffer !
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verifyc(buffer->Play(0,0,DSBPLAY_LOOPING));
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}
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DWORD wc=0;
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int os_getfreesz()
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{
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DWORD pc,wch;
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buffer->GetCurrentPosition(&pc,&wch);
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int fsz=0;
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if (wc>=pc)
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fsz=ds_ring_size-wc+pc;
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else
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fsz=pc-wc;
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fsz-=32;
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return fsz;
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}
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int os_getusedSamples()
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{
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return (ds_ring_size-os_getfreesz())/4;
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}
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bool os_IsAudioBuffered()
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{
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return os_getusedSamples()>=3000;
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}
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bool os_IsAudioBufferedLots()
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{
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u32 xxx=os_getusedSamples();
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return xxx>=4096;
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}
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u32 os_Push_nw(void* frame, u32 samplesb)
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{
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DWORD pc,wch;
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u32 bytes=samplesb*4;
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buffer->GetCurrentPosition(&pc,&wch);
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int fsz=0;
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if (wc>=pc)
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fsz=ds_ring_size-wc+pc;
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else
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fsz=pc-wc;
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fsz-=32;
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//printf("%d: r:%d w:%d (f:%d wh:%d)\n",fsz>bytes,pc,wc,fsz,wch);
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if (fsz>bytes)
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{
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void* ptr1,* ptr2;
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DWORD ptr1sz,ptr2sz;
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u8* data=(u8*)frame;
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buffer->Lock(wc,bytes,&ptr1,&ptr1sz,&ptr2,&ptr2sz,0);
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memcpy(ptr1,data,ptr1sz);
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if (ptr2sz)
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{
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data+=ptr1sz;
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memcpy(ptr2,data,ptr2sz);
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}
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buffer->Unlock(ptr1,ptr1sz,ptr2,ptr2sz);
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wc=(wc+bytes)%ds_ring_size;
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return 1;
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}
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return 0;
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//ds_ring_size
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}
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u32 os_Push(void* frame, u32 samples, bool wait)
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{
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u16* f=(u16*)frame;
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bool w=false;
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for (u32 i = 0; i < samples*2; i++)
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{
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if (f[i])
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{
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w = true;
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break;
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}
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}
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wait &= w;
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int ffs=1;
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while (os_IsAudioBufferedLots() && wait)
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if (ffs == 0)
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ffs = printf("AUD WAIT %d\n",os_getusedSamples());
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while(!os_Push_nw(frame,samples) && wait)
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printf("FAILED waiting on audio FAILED %d\n",os_getusedSamples());
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return 1;
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}
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void os_TermAudio()
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{
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buffer->Stop();
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buffer->Release();
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dsound->Release();
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}
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#endif |