winamp/Src/Plugins/Output/out_wave/waveout.cpp
2024-09-24 14:54:57 +02:00

618 lines
12 KiB
C++

#define STRICT
#include <windows.h>
#include "out_wave.h"
#include "api.h"
#include "waveout.h"
#include "resource.h"
#include <mmreg.h>
#pragma intrinsic(memset, memcpy)
#define SYNC_IN EnterCriticalSection(&sync);
#define SYNC_OUT LeaveCriticalSection(&sync);
#define GET_TIME timeGetTime()
static const int kMaxChannelsToMask = 8;
static const unsigned int kChannelsToMask[kMaxChannelsToMask + 1] = {
0,
// 1 = Mono
SPEAKER_FRONT_CENTER,
// 2 = Stereo
SPEAKER_FRONT_LEFT | SPEAKER_FRONT_RIGHT,
// 3 = Stereo + Center
SPEAKER_FRONT_LEFT | SPEAKER_FRONT_RIGHT | SPEAKER_FRONT_CENTER,
// 4 = Quad
SPEAKER_FRONT_LEFT | SPEAKER_FRONT_RIGHT |
SPEAKER_BACK_LEFT | SPEAKER_BACK_RIGHT,
// 5 = 5.0
SPEAKER_FRONT_LEFT | SPEAKER_FRONT_RIGHT | SPEAKER_FRONT_CENTER |
SPEAKER_BACK_LEFT | SPEAKER_BACK_RIGHT,
// 6 = 5.1
SPEAKER_FRONT_LEFT | SPEAKER_FRONT_RIGHT |
SPEAKER_FRONT_CENTER | SPEAKER_LOW_FREQUENCY |
SPEAKER_BACK_LEFT | SPEAKER_BACK_RIGHT,
// 7 = 6.1
SPEAKER_FRONT_LEFT | SPEAKER_FRONT_RIGHT |
SPEAKER_FRONT_CENTER | SPEAKER_LOW_FREQUENCY |
SPEAKER_BACK_LEFT | SPEAKER_BACK_RIGHT |
SPEAKER_BACK_CENTER,
// 8 = 7.1
SPEAKER_FRONT_LEFT | SPEAKER_FRONT_RIGHT |
SPEAKER_FRONT_CENTER | SPEAKER_LOW_FREQUENCY |
SPEAKER_BACK_LEFT | SPEAKER_BACK_RIGHT |
SPEAKER_SIDE_LEFT | SPEAKER_SIDE_RIGHT
// TODO(fbarchard): Add additional masks for 7.2 and beyond.
};
WaveOut::~WaveOut()
{
if (hThread)
{
SYNC_IN
die=1;
SYNC_OUT;
SetEvent(hEvent);
WaitForSingleObject(hThread,INFINITE);
}
if (hEvent) CloseHandle(hEvent);
DeleteCriticalSection(&sync);
killwaveout();
if (buffer) LocalFree(buffer);
hdr_free_list(hdrs);
hdr_free_list(hdrs_free);
}
DWORD WINAPI WaveOut::ThreadProc(WaveOut * p)
{
p->thread();
return 0;
}
void WaveOut::thread()
{
SetThreadPriority(GetCurrentThread(),THREAD_PRIORITY_TIME_CRITICAL);
while(hWo)
{
WaitForSingleObject(hEvent,INFINITE);
SYNC_IN;
if (die) {SYNC_OUT; break;}
for(HEADER * h=hdrs;h;)
{
if (h->hdr.dwFlags&WHDR_DONE)
{
n_playing--;
buf_size_used-=h->hdr.dwBufferLength;
last_time=GET_TIME;
waveOutUnprepareHeader(hWo,&h->hdr,sizeof(WAVEHDR));
HEADER* f=h;
h=h->next;
hdr_free(f);
}
else h=h->next;
}
/* if (needflush)
{
flush();
if (!paused) waveOutRestart(hWo);
needflush=0;
}*/
if (!paused && newpause)
{
paused=1;
if (hWo) waveOutPause(hWo);
p_time=GET_TIME-last_time;
}
if (paused && !newpause)
{
paused=0;
if (hWo) waveOutRestart(hWo);
last_time = GET_TIME-p_time;
}
UINT limit;
if (needplay) limit=0;
else if (!n_playing)
{
limit=prebuf;
if (limit<avgblock) limit=avgblock;
}
else if (buf_size_used<(buf_size>>1) || n_playing<3) limit=minblock;//skipping warning, blow whatever we have
else limit=avgblock;//just a block
while(data_written>limit)
{
UINT d=(data_written > maxblock) ? maxblock : data_written;
d-=d%fmt_align;
if (!d) break;
data_written-=d;
buf_size_used+=d;
HEADER * h=hdr_alloc();
h->hdr.dwBytesRecorded=h->hdr.dwBufferLength=d;
h->hdr.lpData=buffer+write_ptr;
write_ptr+=d;
if (write_ptr>buf_size)
{
write_ptr-=buf_size;
memcpy(buffer+buf_size,buffer,write_ptr);
}
n_playing++;
if (use_altvol) do_altvol(h->hdr.lpData,d);
waveOutPrepareHeader(hWo,&h->hdr,sizeof(WAVEHDR));
waveOutWrite(hWo,&h->hdr,sizeof(WAVEHDR));//important: make all waveOutWrite calls from *our* thread to keep win2k/xp happy
if (n_playing==1) last_time=GET_TIME;
#if 0
{
char t[128] = {0};
wsprintf(t,"block size: %u, limit used %u\n", d,limit);
OutputDebugString(t);
}
#endif
}
needplay=0;
if (!data_written && !n_playing && closeonstop) killwaveout();
SYNC_OUT;
}
killwaveout();
}
int WaveOut::WriteData(const void * _data,UINT size)
{
SYNC_IN;
if (paused) //$!#@!
{
SYNC_OUT;
return 0;
}
const char * data=(const char*)_data;
{
UINT cw=CanWrite();
if (size>cw)
{
size=cw;
}
}
UINT written=0;
while(size>0)
{
UINT ptr=(data_written + write_ptr)%buf_size;
UINT delta=size;
if (ptr+delta>buf_size) delta=buf_size-ptr;
memcpy(buffer+ptr,data,delta);
data+=delta;
size-=delta;
written+=delta;
data_written+=delta;
}
SYNC_OUT; // sync out first to prevent a ping-pong condition
if (written) SetEvent(hEvent);//new shit, time to update
return (int)written;
}
void WaveOut::flush()//in sync
{
waveOutReset(hWo);
while(hdrs)
{
if (hdrs->hdr.dwFlags & WHDR_PREPARED)
{
waveOutUnprepareHeader(hWo,&hdrs->hdr,sizeof(WAVEHDR));
}
hdr_free(hdrs);
}
reset_shit();
}
void WaveOut::Flush()
{
/* SYNC_IN;
needflush=1;
SetEvent(hEvent);
SYNC_OUT;
while(needflush) Sleep(1);*/
SYNC_IN;//no need to sync this to our thread
flush();
if (!paused) waveOutRestart(hWo);
SYNC_OUT;
}
void WaveOut::ForcePlay()
{
SYNC_IN;//needs to be done in our thread
if (!paused) {needplay=1;SetEvent(hEvent);}
SYNC_OUT;
// while(needplay) Sleep(1);
}
WaveOut::WaveOut()
{
#ifndef TINY_DLL //TINY_DLL has its own new operator with zeroinit
memset(&hWo,0,sizeof(*this)-((char*)&hWo-(char*)this));
#endif
myvol=-666;
mypan=-666;
InitializeCriticalSection(&sync);
}
int WaveOut::open(WaveOutConfig * cfg)
{
fmt_sr = cfg->sr;
fmt_bps = cfg->bps;
fmt_nch = cfg->nch;
fmt_align = ( fmt_bps >> 3 ) * fmt_nch;
fmt_mul = fmt_align * fmt_sr;
use_volume=cfg->use_volume;
use_altvol=cfg->use_altvol;
use_resetvol=cfg->resetvol;
if (!use_volume)
use_altvol=use_resetvol=0;
else if (use_altvol)
{
use_resetvol=0;
use_volume=0;
}
WAVEFORMATEX wfx=
{
WAVE_FORMAT_PCM,
(WORD)fmt_nch,
fmt_sr,
fmt_mul,
(WORD)fmt_align,
(WORD)fmt_bps,
0
};
if (!hEvent) hEvent=CreateEvent(0,0,0,0);
WAVEFORMATEXTENSIBLE wfxe = { 0 };
wfxe.Format = wfx;
wfxe.Format.wFormatTag = WAVE_FORMAT_EXTENSIBLE;
wfxe.Format.cbSize = sizeof(WAVEFORMATEXTENSIBLE) - sizeof(WAVEFORMATEX);
wfxe.Format.nChannels = fmt_nch;
wfxe.Format.nBlockAlign = (wfxe.Format.nChannels *
wfxe.Format.wBitsPerSample) / 8;
wfxe.Format.nAvgBytesPerSec = wfxe.Format.nBlockAlign *
wfxe.Format.nSamplesPerSec;
wfxe.Samples.wReserved = 0;
if (fmt_nch > kMaxChannelsToMask) {
wfxe.dwChannelMask = kChannelsToMask[kMaxChannelsToMask];
}
else {
wfxe.dwChannelMask = kChannelsToMask[fmt_nch];
}
wfxe.SubFormat = KSDATAFORMAT_SUBTYPE_PCM;
wfxe.Samples.wValidBitsPerSample = wfxe.Format.wBitsPerSample;
MMRESULT mr = waveOutOpen(&hWo, (UINT)(cfg->dev-1), reinterpret_cast<LPCWAVEFORMATEX>(&wfxe), (DWORD_PTR)hEvent, 0, CALLBACK_EVENT);
if (mr)
{
WCHAR full_error[1024], * _fe = full_error;
WCHAR poo[MAXERRORLENGTH] = { 0 };
WCHAR* e = poo;
if (waveOutGetErrorTextW(mr,poo,MAXERRORLENGTH)!=MMSYSERR_NOERROR)
{
WASABI_API_LNGSTRINGW_BUF(IDS_UNKNOWN_MMSYSTEM_ERROR, poo, MAXERRORLENGTH);
}
char * e2=0, e2Buf[1024] = {0};
switch(mr)
{
case 32:
wsprintfW(_fe, WASABI_API_LNGSTRINGW(IDS_UNSUPPORTED_PCM_FORMAT), fmt_sr, fmt_bps, fmt_nch);
//fixme: some broken drivers blow mmsystem032 for no reason, with "standard" 44khz/16bps/stereo, need better error message when pcm format isnt weird
while(_fe && *_fe) _fe++;
e2="";
break;
case 4:
e2=WASABI_API_LNGSTRING_BUF(IDS_ANOTHER_PROGRAM_IS_USING_THE_SOUNDCARD,e2Buf,1024);
break;
case 2:
e2=WASABI_API_LNGSTRING_BUF(IDS_NO_SOUND_DEVICES_FOUND,e2Buf,1024);
break;
case 20:
e2=WASABI_API_LNGSTRING_BUF(IDS_INTERNAL_DRIVER_ERROR,e2Buf,1024);
break;
case 7:
e2=WASABI_API_LNGSTRING_BUF(IDS_REINSTALL_SOUNDCARD_DRIVERS,e2Buf,1024);
break;
//case 8: fixme
}
if (e2)
{
wsprintfW(_fe, WASABI_API_LNGSTRINGW(IDS_ERROR_CODE_WINDOWS_ERROR_MESSAGE), e2, mr, e);
}
else
{
wsprintfW(_fe, WASABI_API_LNGSTRINGW(IDS_ERROR_CODE), e, mr);
}
cfg->SetError(full_error);
return 0;
}
buf_size=MulDiv(cfg->buf_ms,fmt_mul,1000);
maxblock = 0x10000;
minblock = 0x100;
avgblock = buf_size>>4;
if (maxblock>buf_size>>2) maxblock=buf_size>>2;
if (avgblock>maxblock) avgblock=maxblock;
if (maxblock<minblock) maxblock=minblock;
if (avgblock<minblock) avgblock=minblock;
buffer = (char*)LocalAlloc(LPTR,buf_size+maxblock);//extra space at the end of the buffer
prebuf = MulDiv(cfg->prebuf,fmt_mul,1000);
if (prebuf>buf_size) prebuf=buf_size;
n_playing=0;
waveOutRestart(hWo);
reset_shit();
if (use_resetvol) waveOutGetVolume(hWo,&orgvol);
if (myvol!=-666 || mypan!=-666) update_vol();
{
DWORD dw;
hThread=CreateThread(0,0,(LPTHREAD_START_ROUTINE)ThreadProc,this,0,&dw);
}
return 1;
}
int WaveOut::GetLatency(void)
{
SYNC_IN;
int r=0;
if (hWo)
{
r=MulDiv(buf_size_used+data_written,1000,(fmt_bps>>3)*fmt_nch*fmt_sr);
if (paused) r-=p_time;
else if (n_playing) r-=GET_TIME-last_time;
if (r<0) r=0;
}
SYNC_OUT;
return r;
}
void WaveOut::SetVolume(int v)
{
SYNC_IN;
myvol=v;
update_vol();
SYNC_OUT;
}
void WaveOut::SetPan(int p)
{
SYNC_IN;
mypan=p;
update_vol();
SYNC_OUT;
}
void WaveOut::update_vol()
{
if (hWo && use_volume)
{
if (myvol==-666) myvol=255;
if (mypan==-666) mypan=0;
DWORD left,right;
left=right=myvol|(myvol<<8);
if (mypan<0) right=(right*(128+mypan))>>7;
else if (mypan>0) left=(left*(128-mypan))>>7;
waveOutSetVolume(hWo,left|(right<<16));
}
}
void WaveOut::reset_shit()
{
n_playing=0;
data_written=0;
buf_size_used=0;
last_time=0;
//last_time=GET_TIME;
}
void WaveOut::Pause(int s)
{
SYNC_IN;
newpause=s?1:0;//needs to be done in our thread to keep stupid win2k/xp happy
SYNC_OUT;
SetEvent(hEvent);
while(paused!=newpause) Sleep(1);
}
void WaveOut::killwaveout()
{
if (hWo)
{
flush();
if (use_resetvol) waveOutSetVolume(hWo,orgvol);
waveOutClose(hWo);
hWo=0;
}
}
int WaveOut::CanWrite()
{
SYNC_IN;
int rv=paused ? 0 : buf_size-buf_size_used-data_written;
SYNC_OUT;
return rv;
}
WaveOut * WaveOut::Create(WaveOutConfig * cfg)
{
WaveOut * w=new WaveOut;
if (w->open(cfg)<=0)
{
delete w;
w=0;
}
return w;
}
WaveOut::HEADER * WaveOut::hdr_alloc()
{
HEADER * r;
if (hdrs_free)
{
r=hdrs_free;
hdrs_free=hdrs_free->next;
}
else
{
r=new HEADER;
}
r->next=hdrs;
hdrs=r;
memset(&r->hdr,0,sizeof(WAVEHDR));
return r;
}
void WaveOut::hdr_free(HEADER * h)
{
HEADER ** p=&hdrs;
while(p && *p)
{
if (*p==h)
{
*p = (*p)->next;
break;
}
else p=&(*p)->next;
}
h->next=hdrs_free;
hdrs_free=h;
}
void WaveOut::hdr_free_list(HEADER * h)
{
while(h)
{
HEADER * t=h->next;
delete h;
h=t;
}
}
bool WaveOut::PrintState(char * z)
{
bool rv;
SYNC_IN;
if (!hWo) rv=0;
else
{
rv=1;
wsprintfA(z,WASABI_API_LNGSTRING(IDS_DATA_FORMAT),fmt_sr,fmt_bps,fmt_nch);
while(z && *z) z++;
wsprintfA(z,WASABI_API_LNGSTRING(IDS_BUFFER_STATUS),buf_size,n_playing);
while(z && *z) z++;
wsprintfA(z,WASABI_API_LNGSTRING(IDS_LATENCY),GetLatency());
// while(z && *z) z++;
// wsprintf(z,"Data written: %u KB",MulDiv((int)total_written,(fmt_bps>>3)*fmt_nch,1024));
}
SYNC_OUT;
return rv;
}
void WaveOutConfig::SetError(const WCHAR * x)
{
error=(WCHAR*)LocalAlloc(LPTR,lstrlenW(x+1));
lstrcpyW(error,x);
}
void WaveOut::do_altvol_i(char * ptr,UINT max,UINT start,UINT d,int vol)
{
UINT p=start*(fmt_bps>>3);
while(p<max)
{
void * z=ptr+p;
switch(fmt_bps)
{
case 8:
*(BYTE*)z=0x80^(BYTE)MulDiv(0x80^*(BYTE*)z,vol,255);
break;
case 16:
*(short*)z=(short)MulDiv(*(short*)z,vol,255);
break;
case 24:
{
long l=0;
memcpy(&l,z,3);
if (l&0x800000) l|=0xFF000000;
l=MulDiv(l,vol,255);
memcpy(z,&l,3);
}
break;
case 32:
*(long*)z=MulDiv(*(long*)z,vol,255);
break;
}
p+=d*(fmt_bps>>3);
}
}
void WaveOut::do_altvol(char * ptr,UINT s)
{
int mixvol=(myvol==-666) ? 255 : myvol;
int mixpan=(mypan==-666) ? 0 : mypan;
if (mixvol==255 && (fmt_nch!=2 || mixpan==0)) return;
if (fmt_nch==2)
{
int rv=mixvol,lv=mixvol;
if (mixpan<0)
{//-128..0
rv=MulDiv(rv,mixpan+128,128);
}
else if (mixpan>0)
{
lv=MulDiv(rv,128-mixpan,128);
}
do_altvol_i(ptr,s,0,2,lv);
do_altvol_i(ptr,s,1,2,rv);
}
else
{
do_altvol_i(ptr,s,0,1,mixvol);
}
}
bool WaveOut::IsClosed()
{
SYNC_IN;
bool rv=hWo ? 0 : 1;
SYNC_OUT;
return rv;
}