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#include "main.h"
#include "fakedsound.h"
//DirectMusic output capture hack.
class FakeDirectSoundBuffer : public IDirectSoundBuffer
{
private:
ULONG ref;
CPipe* out;
UINT freq;
BYTE * buf;
UINT buf_size;
bool playing;
DWORD pos_play;
DWORD samples_played;
DWORD start;
void do_update();
public:
~FakeDirectSoundBuffer()
{
if (buf) free(buf);
};
HRESULT _stdcall QueryInterface(REFIID iid, void** i)
{
if (IsEqualIID(iid,IID_IUnknown) || IsEqualIID(iid,IID_IDirectSoundBuffer))
{
ref++;
*i = this;
return S_OK;
}
else return E_NOINTERFACE;
}
ULONG _stdcall AddRef() {return ++ref;};
ULONG _stdcall Release()
{
UINT r=--ref;
if (!r)
{
delete this;
}
return r;
}
HRESULT _stdcall GetCaps(LPDSBCAPS _caps)
{
DSBCAPS caps=
{
sizeof(DSBCAPS),
DSBCAPS_GLOBALFOCUS|DSBCAPS_GETCURRENTPOSITION2|DSBCAPS_LOCSOFTWARE,
buf_size,
0,0 //CPU crap
};
*_caps = caps;
return S_OK;
}
HRESULT _stdcall Initialize(LPDIRECTSOUND, LPCDSBUFFERDESC) {return DSERR_ALREADYINITIALIZED;}
HRESULT _stdcall SetFormat(LPCWAVEFORMATEX) {return DSERR_INVALIDCALL;}
HRESULT _stdcall GetFormat(LPWAVEFORMATEX wfx,DWORD,LPDWORD w)
{
wfx->wFormatTag=WAVE_FORMAT_PCM;
wfx->nChannels=2;
wfx->nSamplesPerSec=freq;
wfx->nAvgBytesPerSec=4*freq;
wfx->nBlockAlign=4;
wfx->wBitsPerSample=16;
wfx->cbSize=0;
if (w) *w=sizeof(WAVEFORMATEX);
return S_OK;
}
HRESULT _stdcall GetVolume(long* v) {return S_OK;}
HRESULT _stdcall SetVolume(long v) {return S_OK;}
HRESULT _stdcall GetPan(long *p) {return S_OK;}
HRESULT _stdcall SetPan(long p) {return S_OK;}
HRESULT _stdcall GetFrequency(DWORD* f) {*f=freq;return S_OK;}
HRESULT _stdcall SetFrequency(DWORD f) {return S_OK;}
HRESULT _stdcall GetStatus(DWORD* s)
{
*s = DSBSTATUS_PLAYING|DSBSTATUS_LOOPING;
return S_OK;
}
HRESULT _stdcall SetCurrentPosition(DWORD) {return S_OK;}
HRESULT _stdcall Restore() {return S_OK;}
HRESULT _stdcall Lock(DWORD wr_cur, DWORD wr_b, void** p1, DWORD* s1, void** p2, DWORD* s2, DWORD flagz)
{
if (wr_b>buf_size)
{
return DSERR_INVALIDPARAM;
}
*p1 = buf + wr_cur;
if (wr_cur + wr_b > buf_size)
{
*s1 = buf_size - wr_cur;
*p2 = buf;
*s2 = wr_cur+wr_b - buf_size;
}
else
{
*s1 = wr_b;
*p2 = 0;
*s2 = 0;
}
return S_OK;
}
HRESULT _stdcall GetCurrentPosition(LPDWORD p, LPDWORD w)
{
do_update();
if (p) *p=pos_play;
if (w) *w=pos_play;
return S_OK;
}
HRESULT _stdcall Play(DWORD, DWORD, DWORD)
{
playing=1;
pos_play=0;
samples_played=0;
start=timeGetTime();
return S_OK;
}
HRESULT _stdcall Stop() {do_update();playing=0;return S_OK;}
HRESULT _stdcall Unlock(LPVOID, DWORD, LPVOID, DWORD)
{
do_update();
return S_OK;
}
FakeDirectSoundBuffer(UINT _freq,UINT size)
{
ref=1;
buf_size=size;
buf=(BYTE*)malloc(size);
memset(buf,0,size);
freq=_freq;
out=new CPipe(4,freq);
MIDI_core::player_setSource(out);
playing=0;
pos_play=0;
samples_played=0;
}
};
void FakeDirectSoundBuffer::do_update()
{
if (playing)
{
int ds=MulDiv(timeGetTime()-start,freq,1000)-samples_played;
if (ds>0)
{
UINT todo=ds*4;
while(pos_play+todo>buf_size)
{
out->WriteData(buf+pos_play,buf_size-pos_play);
todo-=buf_size-pos_play;
pos_play=0;
}
if (todo)
{
out->WriteData(buf+pos_play,todo);
pos_play+=todo;
//todo=0;
}
samples_played+=ds;
}
}
}
IDirectSoundBuffer* dhb_create(DWORD s,DWORD f)
{
return new FakeDirectSoundBuffer(f,s);
}
//fake IDirectSound crap. one static instance
static DSCAPS h_caps=
{
sizeof(DSCAPS),
DSCAPS_SECONDARY16BIT|DSCAPS_SECONDARYSTEREO,
1000,
100000,
1,
1000,
1000,
1000,//streaming buffers
1000,
1000,
1000,
0,0,0,0,0,0,//3d crap
1024*1024,
1024*1024,
1024*1024,
0,0, //CPU speed crap
0,0 //reserved crap
};
class FakeDsound : public IDirectSound
{
ULONG ref:1;
HRESULT _stdcall QueryInterface(REFIID iid,void** i)
{
if (IsEqualIID(iid,IID_IUnknown) || IsEqualIID(iid,IID_IDirectSound))
{
ref++;
*i = this;
return S_OK;
}
else return E_NOINTERFACE;
}
ULONG _stdcall AddRef() {return ++ref;}
ULONG _stdcall Release() {return --ref;}
HRESULT _stdcall CreateSoundBuffer(LPCDSBUFFERDESC, LPDIRECTSOUNDBUFFER *, LPUNKNOWN) {return DSERR_INVALIDCALL;}
HRESULT _stdcall GetCaps(LPDSCAPS _caps)
{
*_caps = h_caps;
return S_OK;
}
HRESULT _stdcall DuplicateSoundBuffer(LPDIRECTSOUNDBUFFER, LPDIRECTSOUNDBUFFER *) {return DSERR_INVALIDCALL;}
HRESULT _stdcall SetCooperativeLevel(HWND, DWORD) {return S_OK;}
HRESULT _stdcall Compact() {return S_OK;}
HRESULT _stdcall GetSpeakerConfig(LPDWORD moo) {*moo=0;return S_OK;}
HRESULT _stdcall SetSpeakerConfig(DWORD) {return S_OK;}
HRESULT _stdcall Initialize(LPCGUID) {return DSERR_ALREADYINITIALIZED;}
};
static FakeDsound HACK;
IDirectSound * get_ds() {return &HACK;}
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