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@ -24,38 +24,31 @@ static FSoundDriver_Win32 iFSoundDriver_Win32;
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static HWAVEOUT _waveout;
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static WAVEHDR _wave_hdr[2];
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static int _bufsize;
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static HANDLE _thread;
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static DWORD _threadId;
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static void PrepareHeader(WAVEHDR *hdr)
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{
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hdr->dwBufferLength = _bufsize * 4;
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hdr->dwFlags = 0;
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hdr->lpData = MallocT<char>(_bufsize * 4);
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if (waveOutPrepareHeader(_waveout, hdr, sizeof(WAVEHDR)) != MMSYSERR_NOERROR)
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usererror("waveOutPrepareHeader failed");
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if (waveOutPrepareHeader(_waveout, hdr, sizeof(WAVEHDR)) != MMSYSERR_NOERROR) usererror("waveOutPrepareHeader failed");
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}
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static void FillHeaders()
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static DWORD WINAPI SoundThread(LPVOID arg)
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{
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MSG msg;
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WAVEHDR *hdr;
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for (hdr = _wave_hdr; hdr != endof(_wave_hdr); hdr++) {
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if (!(hdr->dwFlags & WHDR_INQUEUE)) {
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while (_waveout != NULL) {
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for (hdr = _wave_hdr; hdr != endof(_wave_hdr); hdr++) {
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if ((hdr->dwFlags & WHDR_INQUEUE) != 0) continue;
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MxMixSamples(hdr->lpData, hdr->dwBufferLength / 4);
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if (waveOutWrite(_waveout, hdr, sizeof(WAVEHDR)) != MMSYSERR_NOERROR)
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usererror("waveOutWrite failed");
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if (waveOutWrite(_waveout, hdr, sizeof(WAVEHDR)) != MMSYSERR_NOERROR) usererror("waveOutWrite failed");
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}
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GetMessage(&msg, NULL, MM_WOM_DONE, MM_WOM_DONE);
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}
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}
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static void CALLBACK waveOutProc(HWAVEOUT hwo, UINT uMsg, DWORD_PTR dwInstance,
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DWORD dwParam1, DWORD dwParam2)
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{
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switch (uMsg) {
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case WOM_DONE:
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if (_waveout != NULL) FillHeaders();
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break;
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default: break;
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}
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return 0;
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}
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const char *SoundDriver_Win32::Start(const char * const *parm)
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@ -70,14 +63,17 @@ const char *SoundDriver_Win32::Start(const char * const *parm)
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_bufsize = GetDriverParamInt(parm, "bufsize", (GB(GetVersion(), 0, 8) > 5) ? 8192 : 4096);
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if (waveOutOpen(&_waveout, WAVE_MAPPER, &wfex, (DWORD_PTR)&waveOutProc, 0, CALLBACK_FUNCTION) != MMSYSERR_NOERROR)
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return "waveOutOpen failed";
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if (NULL == (_thread = CreateThread(NULL, 8192, SoundThread, 0, CREATE_SUSPENDED, &_threadId))) return "Failed to create thread";
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if (waveOutOpen(&_waveout, WAVE_MAPPER, &wfex, (DWORD_PTR)_threadId, 0, CALLBACK_THREAD) != MMSYSERR_NOERROR) return "waveOutOpen failed";
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MxInitialize(wfex.nSamplesPerSec);
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PrepareHeader(&_wave_hdr[0]);
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PrepareHeader(&_wave_hdr[1]);
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FillHeaders();
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ResumeThread(_thread);
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return NULL;
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}
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@ -86,8 +82,12 @@ void SoundDriver_Win32::Stop()
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HWAVEOUT waveout = _waveout;
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_waveout = NULL;
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WaitForMultipleObjects(1, &_thread, true, INFINITE);
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waveOutReset(waveout);
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waveOutUnprepareHeader(waveout, &_wave_hdr[0], sizeof(WAVEHDR));
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waveOutUnprepareHeader(waveout, &_wave_hdr[1], sizeof(WAVEHDR));
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waveOutClose(waveout);
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CloseHandle(_thread);
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}
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