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