winaudio.cpp
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上传日期:2007-06-06
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文件大小:36k
- /* ***** BEGIN LICENSE BLOCK *****
- * Version: RCSL 1.0/RPSL 1.0
- *
- * Portions Copyright (c) 1995-2002 RealNetworks, Inc. All Rights Reserved.
- *
- * The contents of this file, and the files included with this file, are
- * subject to the current version of the RealNetworks Public Source License
- * Version 1.0 (the "RPSL") available at
- * http://www.helixcommunity.org/content/rpsl unless you have licensed
- * the file under the RealNetworks Community Source License Version 1.0
- * (the "RCSL") available at http://www.helixcommunity.org/content/rcsl,
- * in which case the RCSL will apply. You may also obtain the license terms
- * directly from RealNetworks. You may not use this file except in
- * compliance with the RPSL or, if you have a valid RCSL with RealNetworks
- * applicable to this file, the RCSL. Please see the applicable RPSL or
- * RCSL for the rights, obligations and limitations governing use of the
- * contents of the file.
- *
- * This file is part of the Helix DNA Technology. RealNetworks is the
- * developer of the Original Code and owns the copyrights in the portions
- * it created.
- *
- * This file, and the files included with this file, is distributed and made
- * available on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
- * EXPRESS OR IMPLIED, AND REALNETWORKS HEREBY DISCLAIMS ALL SUCH WARRANTIES,
- * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, FITNESS
- * FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
- *
- * Technology Compatibility Kit Test Suite(s) Location:
- * http://www.helixcommunity.org/content/tck
- *
- * Contributor(s):
- *
- * ***** END LICENSE BLOCK ***** */
- #include "hxtypes.h"
- #include "hlxclib/windows.h"
- #include <mmsystem.h>
- #include <tchar.h>
- #include <stdio.h>
- #ifdef _TESTING
- #include <fcntl.h>
- #include <sys/types.h>
- #include <sys/stat.h>
- #if defined (_WINDOWS) || defined (_WIN32)
- #include <io.h>
- #endif
- #endif
- #include "hxresult.h"
- #include "hxcom.h"
- #include "hxausvc.h"
- #include "auderrs.h"
- #include "ihxpckts.h"
- #include "hxengin.h"
- #include "timeval.h"
- #include "hxaudev.h"
- #include "hxslist.h"
- #include "hxtick.h"
- //#include "hxaudses.h"
- #include "cbqueue.h"
- #include "cpqueue.h"
- #include "hxthread.h"
- #include "winaudio.h"
- #ifdef WIN32_PLATFORM_PSPC
- #define WM_NCCREATE WM_CREATE
- #define WM_NCDESTROY WM_DESTROY
- #endif
- struct IHXCallback;
- extern HINSTANCE g_hInstance;
- #define OFFSET_THIS 0
- #ifdef _TESTING
- int m_audfile = -1;
- #endif
- BOOL CAudioOutWindows::zm_bVolSupport = FALSE;
- BOOL CAudioOutWindows::zm_bLRVolSupport = FALSE;
- WORD CAudioOutWindows::zm_uMaxVolume = 100;
- BOOL CAudioOutWindows::zm_bMixerVolSupport = FALSE;
- BOOL CAudioOutWindows::zm_bMixerVolSupportChecked = FALSE;
- UINT CAudioOutWindows::zm_uDestroyMessage = 0;
- BOOL CAudioOutWindows::zm_bClosed = TRUE;
- CAudioOutWindows* zm_pCurrentAudioDevice = NULL;
- // BAD drivers which need to call waveOutSetVolume directly
- const UINT16 g_nBadDrivers = 1;
- const TCHAR* g_badDrivers[] = {_T("Crystal Audio System")};
- audioDevice CAudioOutWindows::zm_audioDevice = HXAUDIO_UNKNOWN;
- //CRITICAL_SECTION CAudioOutWindows::zm_AudioCritSection;
- #define MAX_REASONABLE_BUFFS 40
- #define PUSH_DOWN_TIME 400 /* push down 400 ms */
- #define LIKELY_PUSH_COUNT 10
- CAudioOutWindows::CAudioOutWindows()
- : m_hWave(NULL)
- , m_unAllocedBufferCnt(0)
- , m_unAllocedBuffSize(0)
- , m_ppAllocedBuffers(NULL)
- , m_pWaveHdrs(NULL)
- , m_rAvailBuffers(MAX_REASONABLE_BUFFS)
- , m_bInitialized(FALSE)
- , m_bResetting(FALSE)
- , m_bIsFirstPacket(TRUE)
- , m_hWnd(NULL)
- , m_bClassRegistered(FALSE)
- , m_ulDevPosRollOver(0)
- , m_ulLastDeviceBytesPlayed(0)
- , m_ulLastDeviceSamplesPlayed(0)
- , m_llDeviceBytesPlayed(0)
- , m_llDeviceSamplesPlayed(0)
- #if defined(_WIN32)
- , m_ulOriginalThreadId(0)
- #endif /*_WIN32*/
- {
- zm_bClosed = TRUE;
- zm_pCurrentAudioDevice = this;
- #if defined(_WIN32) && !defined(_WINCE)
- m_hMixer = NULL;
- memset(&m_VolumeControlDetails, 0 , sizeof(MIXERCONTROLDETAILS));
- #endif // _WIN32
- // Create a unique message for destroying the audio window
- if (!zm_uDestroyMessage)
- {
- zm_uDestroyMessage = RegisterWindowMessage(_T("HX_DestroyAudioServicesInternal"));
- }
-
- #ifdef THREADS_SUPPORTED
- HXMutex::MakeMutex(m_pMutex);
- #else
- HXMutex::MakeStubMutex(m_pMutex);
- #endif
- }
- CAudioOutWindows::~CAudioOutWindows()
- {
- // OutputDebugString("BEFORE CALL TO:CAudioOutWindows::~CAudioOutWindowsrn");
- // this gives us one last chance to recover packets that are still in the device
- Reset();
- // We might as well consider the device closed!
- zm_bClosed = TRUE;
- #if defined(_WIN32) && !defined(_WINCE)
- /* This sleep is added to fix a hang bug that ONLY happens on
- * Darren's machine if you adjust audio volume. His machine
- * has a really old audio driver
- *
- * I have no clue what this bug is and how this Sleep(0)
- * fixes it. Obviously, there was some race condition.
- *
- * Sound Driver Info:
- *
- * Version 2.03.0 Build 1
- * Creative Sound Blaster 16 Driver (Windows NT)
- *
- */
- Sleep(0);
- if(m_hMixer)
- {
- mixerClose(m_hMixer);
- }
- #endif // _WIN32
- _Imp_Close();
- zm_pCurrentAudioDevice = NULL;
- HX_DELETE(m_pMutex);
- }
- UINT16 CAudioOutWindows::_Imp_GetVolume()
- {
- DWORD dwVol = 0;
- BOOL bSuccess = FALSE;
- #if defined(_WIN32) && !defined(_WINCE)
- if (!zm_bMixerVolSupportChecked)
- {
- CheckForVolumeSupport();
- }
- if(zm_bMixerVolSupport)
- {
- if (!m_hMixer)
- {
- CheckForVolumeSupport();
- }
- PMIXERCONTROLDETAILS_UNSIGNED pmxVolume;
- UINT16 nItems = 1;
- if(m_VolumeControlDetails.cMultipleItems)
- nItems = (UINT16)m_VolumeControlDetails.cMultipleItems;
- pmxVolume = new MIXERCONTROLDETAILS_UNSIGNED[nItems];
- m_VolumeControlDetails.cbDetails = nItems * sizeof(MIXERCONTROLDETAILS_UNSIGNED);
- m_VolumeControlDetails.paDetails = pmxVolume;
- if(mixerGetControlDetails((HMIXEROBJ)m_hMixer, &m_VolumeControlDetails,
- MIXER_GETCONTROLDETAILSF_VALUE | MIXER_OBJECTF_HMIXER) == MMSYSERR_NOERROR)
- {
- dwVol = pmxVolume[0].dwValue;
- bSuccess = TRUE;
- }
- delete[] pmxVolume;
- }
- #endif
- if (!bSuccess)
- {
- if (!zm_bVolSupport)
- {
- return 0;
- }
- MMRESULT hResult = waveOutGetVolume( m_hWave, &dwVol );
- if (hResult != MMSYSERR_NOERROR && m_hWave != NULL)
- {
- hResult = waveOutGetVolume( NULL, &dwVol );
- }
- if (hResult != MMSYSERR_NOERROR)
- {
- return 0;
- }
- }
- return ( (UINT16)((DWORD)LOWORD( dwVol ) * zm_uMaxVolume / 0xFFFF ) );
- }
- HX_RESULT CAudioOutWindows::_Imp_SetVolume
- (
- const UINT16 uVolume
- )
- {
- DWORD dwVol = 0;
- BOOL bSuccess = FALSE;
- if (uVolume > zm_uMaxVolume)
- {
- return HXR_OK;
- }
- dwVol = (DWORD)uVolume * 0xFFFF / zm_uMaxVolume;
-
- // Here we are avoiding rounding error
- if(dwVol * zm_uMaxVolume / 0xFFFF < uVolume)
- dwVol += 0xFFFF / zm_uMaxVolume;
- if (zm_audioDevice == HXAUDIO_BADDEVICE)
- {
- goto noMixer;
- }
- #if defined(_WIN32) && !defined(_WINCE)
- if (!zm_bMixerVolSupportChecked)
- {
- CheckForVolumeSupport();
- }
- if(zm_bMixerVolSupport)
- {
- if (!m_hMixer)
- {
- CheckForVolumeSupport();
- }
- PMIXERCONTROLDETAILS_UNSIGNED pmxVolume;
- UINT16 nItems = 1;
- if(m_VolumeControlDetails.cMultipleItems)
- nItems = (UINT16)m_VolumeControlDetails.cMultipleItems;
- pmxVolume = new MIXERCONTROLDETAILS_UNSIGNED[nItems];
- for(UINT16 nIndex = 0; nIndex < nItems; nIndex++)
- pmxVolume[nIndex].dwValue = dwVol;
- m_VolumeControlDetails.cbDetails = nItems * sizeof(MIXERCONTROLDETAILS_UNSIGNED);
- m_VolumeControlDetails.paDetails = pmxVolume;
- if(mixerSetControlDetails((HMIXEROBJ)m_hMixer, &m_VolumeControlDetails,
- MIXER_GETCONTROLDETAILSF_VALUE | MIXER_OBJECTF_HMIXER) == MMSYSERR_NOERROR)
- {
- bSuccess = TRUE;
- }
- delete[] pmxVolume;
- }
- #endif
- noMixer:
- if ( !bSuccess )
- {
- DWORD dwLRVol = MAKELONG(dwVol, dwVol) ;
- // fix of bug 4965, in which the balance is thrown to one side. My speculation is that the
- // driver incorrectly reports MONO here when stereo is in use. To fix the bug, set both
- // channels equally. john dempsey
- /* related information:
- "If a devicedoes not support both left and right volume control, the low-order
- word of the dwVolume argument specifies the volume level and the
- high-order word is ignored." -- some DEC document on waveOutSetVolume.
- */
- HX_ASSERT(LOWORD(dwLRVol) == HIWORD(dwLRVol)) ;
- if (!zm_bVolSupport)
- {
- return HXR_FAILED;
- }
- MMRESULT hResult = waveOutSetVolume(m_hWave, dwLRVol);
-
- MMRESULT hResult2 = hResult;
- /*
- * always set the volume on NULL device.
- * Needed to attach volume control on win98 SE, Creative SB Live! Value sound card.
- */
- if (m_hWave != NULL)
- {
- hResult2 = waveOutSetVolume(NULL, dwLRVol);
- }
- if (hResult != MMSYSERR_NOERROR && hResult2 != MMSYSERR_NOERROR)
- {
- return HXR_FAILED;
- }
- }
- return HXR_OK;
- }
- BOOL CAudioOutWindows::_Imp_SupportsVolume()
- {
- MMRESULT wSuccess;
- WAVEOUTCAPS auxcap;
- #if defined(_WIN32) && !defined(_WINCE)
- if (!zm_bMixerVolSupportChecked)
- {
- CheckForVolumeSupport();
- }
- #endif
- #if defined(_WIN32) || defined(_WINCE)
- // Gonna have to make VolSupport static
- if ( zm_bVolSupport )
- {
- return (zm_bVolSupport);
- }
- wSuccess = waveOutGetDevCaps( 0, &auxcap, sizeof(WAVEOUTCAPS) );
- if ( MMSYSERR_NOERROR == wSuccess )
- {
- if (auxcap.dwSupport & WAVECAPS_VOLUME)
- {
- zm_bVolSupport=TRUE;
- }
- if (auxcap.dwSupport & WAVECAPS_LRVOLUME)
- {
- zm_bLRVolSupport = TRUE;
- }
-
- zm_uMaxVolume = 100;
- }
- else
- {
- zm_bVolSupport = FALSE;
- zm_bLRVolSupport = FALSE;
- }
- return zm_bVolSupport;
- #else
- return FALSE;
- #endif /*_WIN32*/
- }
- HX_RESULT CAudioOutWindows:: _Imp_Open
- (
- const HXAudioFormat* pFormat
- )
- {
- HX_RESULT theErr = HXR_OK;
- #if defined(_WIN32)
- LPWAVEFORMATEX wavePtr;
- #elif defined( _WINDOWS )
- LPWAVEFORMAT wavePtr;
- #endif
- theErr = Register();
- if (theErr)
- {
- return theErr;
- }
-
- #ifdef _TESTING
- m_audfile = open("e:\auddev.raw", O_WRONLY | O_CREAT);
- #endif
- m_WaveFormat.SetFormat(pFormat->ulSamplesPerSec, pFormat->uChannels, pFormat->uBitsPerSample);
- // Get the Windows style wave format!
- wavePtr = m_WaveFormat.GetWaveFormat();
- // We ain't closed now
- zm_bClosed = FALSE;
- // Open the wave driver.
- #ifdef _WIN16
- MMRESULT wRet = waveOutOpen( &m_hWave, WAVE_MAPPER, wavePtr,
- (UINT16)m_hWnd, (DWORD)this, CALLBACK_WINDOW);
- #else
- MMRESULT wRet = waveOutOpen( &m_hWave, WAVE_MAPPER, wavePtr,
- (DWORD)m_hWnd, (DWORD)this, CALLBACK_WINDOW);
- #endif
- // Okay, translate any error returns and get out if there was an error
- switch (wRet)
- {
- case MMSYSERR_NOERROR: theErr = HXR_OK; break;
- case MMSYSERR_ALLOCATED: theErr = HXR_AUDIO_DRIVER; break;
- case MMSYSERR_NOMEM: theErr = HXR_OUTOFMEMORY; break;
- case MMSYSERR_BADDEVICEID: theErr = HXR_AUDIO_DRIVER; break;
- case WAVERR_BADFORMAT: theErr = HXR_AUDIO_DRIVER; break;
- case WAVERR_SYNC: theErr = HXR_AUDIO_DRIVER; break;
- default: theErr = HXR_OUTOFMEMORY; break;
- }
- #if defined(_WIN32) && !defined(_WINCE)
- if ( !theErr )
- {
- if (!zm_bMixerVolSupportChecked)
- {
- CheckForVolumeSupport();
- }
- }
- #endif
- return theErr;
- }
- HX_RESULT CAudioOutWindows::_Imp_Close()
- {
- #ifdef _TESTING
- if ( m_audfile > 0 )
- close(m_audfile);
- m_audfile = -1;
- #endif
- zm_bClosed = TRUE;
- if (m_hWave)
- {
- // NOTE: Before we can close, we need to reset!
- Reset();
- m_pMutex->Lock();
- if (m_pWaveHdrs)
- {
- UINT16 unWHIndex;
- // Unprepare the individual headers
- for (unWHIndex = 0; unWHIndex < m_unAllocedBufferCnt; ++unWHIndex)
- {
- CWaveHeader* pWaveHeader = &m_pWaveHdrs[unWHIndex];
- if (pWaveHeader->m_pPrepared)
- {
- LPWAVEHDR lpwHeader = LPWAVEHDR(&pWaveHeader->m_WAVEHDR);
-
- // By now all headers should be marked as done because they
- // are back from the audio device or prepared because we
- // prepared them but never used them
- HX_ASSERT(lpwHeader->dwFlags & WHDR_DONE ||
- lpwHeader->dwFlags & WHDR_PREPARED);
- //OutputDebugString("BEFORE CALL TO:waveOutUnprepareHeaderrn");
- HX_VERIFY(MMSYSERR_NOERROR == waveOutUnprepareHeader(m_hWave,
- LPWAVEHDR(&pWaveHeader->m_WAVEHDR), sizeof(WAVEHDR)));
- //OutputDebugString("AFTER CALL TO:waveOutUnprepareHeaderrn");
- pWaveHeader->m_pPrepared = FALSE;
- }
- }
- }
-
- if (m_ppAllocedBuffers)
- {
- UINT16 unIndex;
- for (unIndex = 0; unIndex < m_unAllocedBufferCnt; unIndex++)
- {
- delete[] m_ppAllocedBuffers[unIndex];
- }
- delete[] m_ppAllocedBuffers;
- m_ppAllocedBuffers = NULL;
- }
- m_rAvailBuffers.FlushQueue();
- m_UsedBuffersList.RemoveAll();
- m_unAllocedBufferCnt = 0;
-
- m_pMutex->Unlock();
- for (int i = 0;
- i < 5 && (WAVERR_STILLPLAYING == waveOutClose( m_hWave )); ++i)
- {
- waveOutReset( m_hWave );
- }
- m_hWave = NULL;
- if (m_pWaveHdrs)
- {
- delete[] m_pWaveHdrs;
- m_pWaveHdrs = NULL;
- }
- }
- UnRegister();
- m_bIsFirstPacket = TRUE;
- m_bInitialized = FALSE;
- return HXR_OK;
- }
- HX_RESULT CAudioOutWindows::_Imp_Write
- (
- const HXAudioData* pAudioOutHdr
- )
- {
- BOOL bTemp;
- CWaveHeader* pWaveHeader;
- MMRESULT res;
- ULONG32 ulBufLen = 0;
- UCHAR* pBuffer = 0;
- if (pAudioOutHdr->pData)
- {
- pBuffer = pAudioOutHdr->pData->GetBuffer();
- ulBufLen = pAudioOutHdr->pData->GetSize();
- }
- if (!m_bInitialized)
- {
- m_bInitialized = AllocateBuffers(MAX_REASONABLE_BUFFS,(UINT16)ulBufLen);
- }
- if (!m_bInitialized) return HXR_FAILED;
- m_pMutex->Lock();
- pWaveHeader = (CWaveHeader*)m_rAvailBuffers.DeQueuePtr(bTemp);
- m_pMutex->Unlock();
- if (!bTemp)
- {
- return HXR_WOULD_BLOCK;
- }
- #ifdef _TESTING
- if ( m_audfile > 0 )
- write(m_audfile, pBuffer,ulBufLen);
- #endif
- UINT32 ulBytesToCopy = ulBufLen;
- HX_ASSERT(ulBytesToCopy <= pWaveHeader->m_WAVEHDR.dwBufferLength);
- if (ulBytesToCopy > pWaveHeader->m_WAVEHDR.dwBufferLength)
- ulBytesToCopy = pWaveHeader->m_WAVEHDR.dwBufferLength;
- pWaveHeader->m_bAvail = FALSE;
- memcpy(pWaveHeader->m_WAVEHDR.lpData, pBuffer, HX_SAFESIZE_T(ulBytesToCopy)); /* Flawfinder: ignore */
- pWaveHeader->m_ulTimeEnd = pAudioOutHdr->ulAudioTime;
- /* This is needed for LIVE where audio packets may not start
- * from timestamp 0
- */
- if (m_bIsFirstPacket)
- {
- m_bIsFirstPacket = FALSE;
- }
- //OutputDebugString("BEFORE CALL TO:waveOutWritern");
- res = waveOutWrite(m_hWave, LPWAVEHDR(&pWaveHeader->m_WAVEHDR), sizeof(WAVEHDR));
- m_pMutex->Lock();
- m_UsedBuffersList.AddTail(pWaveHeader);
- m_pMutex->Unlock();
- //OutputDebugString("AFTER CALL TO:waveOutWritern");
- return HXR_OK;
- }
- HX_RESULT CAudioOutWindows::_Imp_Seek(ULONG32 ulSeekTime)
- {
- return HXR_OK;
- }
- HX_RESULT CAudioOutWindows::_Imp_Pause()
- {
- MMRESULT res;
- if (m_hWave)
- {
- // OutputDebugString("BEFORE CALL TO:waveOutRestartrn");
- res = waveOutPause(m_hWave);
- }
- return HXR_OK;
- }
- HX_RESULT CAudioOutWindows::_Imp_Resume()
- {
- MMRESULT res;
- if (m_hWave)
- {
- // OutputDebugString("BEFORE CALL TO:waveOutRestartrn");
- res = waveOutRestart(m_hWave);
- //OutputDebugString("AFTER CALL TO:waveOutRestartrn");
- }
- OnTimeSync();
- return HXR_OK;
- }
- HX_RESULT CAudioOutWindows::_Imp_Reset()
- {
- //{FILE* f1 = ::fopen("c:\audio.txt", "a+"); ::fprintf(f1, "Reset: n");::fclose(f1);}
- MMRESULT res;
- m_bResetting = TRUE;
- if (m_hWave)
- {
- // OutputDebugString("BEFORE CALL TO:waveOutResetrn");
- res = waveOutReset(m_hWave);
- // Need to be turned on after RC2000 XXXRA
- // commenting it out for safety reasons.
- //_Imp_Pause();
- //OutputDebugString("AFTER CALL TO:waveOutResetrn");
- m_bIsFirstPacket = TRUE;
- m_llDeviceBytesPlayed = 0;
- m_llDeviceSamplesPlayed = 0;
- m_ulLastDeviceBytesPlayed = 0;
- m_ulLastDeviceSamplesPlayed = 0;
- m_ulDevPosRollOver = 0;
- }
- // First return the unused buffers to the available queue
- // Then pump out the wom_dones.
- //
- _NumberOfBlocksRemainingToPlay();
- // Make sure we handle all the wave-done messages,
- // but establish a time limit to cope with the
- // unpredictable nature of Windows. Wait for up
- // to 1 second.
- DWORD start = HX_GET_TICKCOUNT();
- if (m_hWnd)
- {
- do
- {
- MSG msg;
- // Yield, and try to pump WOM_DONE's to the Async Window!
- while (PeekMessage(&msg, m_hWnd, MM_WOM_DONE, MM_WOM_DONE, PM_REMOVE))
- {
- if(msg.message == WM_QUIT)
- {
- // When peeking WM_QUIT message in the main thread of an application
- // we have to put it back into message queue to allow the application
- // to exit correctly. SB
- PostQuitMessage(0);
- break;
- }
- else
- {
- DispatchMessage(&msg);
- }
- }
- if (CALCULATE_ELAPSED_TICKS(start, HX_GET_TICKCOUNT()) >= 1000)
- {
- // Brute force, mark them as free... We probably
- // could do something better here, like close and
- // reopen the wave device... but this is what the
- // old code did, so lets try it as well!
- ULONG32 lTmp;
- m_pMutex->Lock();
- for (lTmp = 0; m_pWaveHdrs && (lTmp < m_unAllocedBufferCnt); ++lTmp)
- {
- CWaveHeader *pwhDone = &m_pWaveHdrs[lTmp];
- if (pwhDone && pwhDone->m_bAvail == FALSE)
- {
- pwhDone->m_bAvail = TRUE;
- m_rAvailBuffers.EnQueuePtr(pwhDone);
- }
- }
- m_pMutex->Unlock();
- //OutputDebugString("Bail WOM_DONE vacuum, passed timeout!rn");
- break;
- }
- }
- while (_NumberOfBlocksRemainingToPlay());
- }
- //OutputDebugString("END: WOM_DONE vacuum!rn");
- m_bResetting = FALSE;
- return HXR_OK;
- }
- HX_RESULT CAudioOutWindows::_Imp_Drain()
- {
- return HXR_OK;
- }
- HX_RESULT CAudioOutWindows::_Imp_CheckFormat
- (
- const HXAudioFormat* pFormat
- )
- {
- #if defined(_WIN32)
- LPWAVEFORMATEX wavePtr;
- #elif defined( _WINDOWS )
- LPWAVEFORMAT wavePtr;
- #endif
- m_WaveFormat.SetFormat(pFormat->ulSamplesPerSec, pFormat->uChannels, pFormat->uBitsPerSample);
-
- // Get the Windows style wave format!
- wavePtr = m_WaveFormat.GetWaveFormat();
- MMRESULT wRet = waveOutOpen(&m_hWave,WAVE_MAPPER,wavePtr,
- 0, (DWORD)this,WAVE_FORMAT_QUERY);
- switch (wRet)
- {
- case MMSYSERR_NOERROR: return( HXR_OK );
- case MMSYSERR_ALLOCATED: return( HXR_AUDIO_DRIVER );
- case MMSYSERR_NOMEM: return( HXR_OUTOFMEMORY );
- case MMSYSERR_BADDEVICEID: return( HXR_AUDIO_DRIVER );
- case WAVERR_BADFORMAT: return( HXR_AUDIO_DRIVER );
- case WAVERR_SYNC: return( HXR_AUDIO_DRIVER );
- case MMSYSERR_NODRIVER: return( HXR_AUDIO_DRIVER );
- default: return( HXR_AUDIO_DRIVER );
- }
- }
- BOOL CAudioOutWindows::AllocateBuffers(UINT16 unNumBuffers, UINT16 unBufSize)
- {
- UCHAR** ppWaveBuffers;
- CWaveHeader* pWaveHdrs;
- MMRESULT tRes;
- UINT16 unWHIndex;
- ppWaveBuffers = NULL;
- pWaveHdrs = NULL;
- // Allocate memory for wave block headers and for wave data.
- if (!(pWaveHdrs = new CWaveHeader [unNumBuffers]))
- {
- goto OnError;
- }
- // This array holds the buffer pointers so we can free them later
- // There NO other purpose for this array.
- if (!(ppWaveBuffers = new UCHAR*[unNumBuffers]))
- {
- goto OnError;
- }
- memset( ppWaveBuffers, 0, unNumBuffers * sizeof( UCHAR* ) );
-
- // Mark all wave block headers as available, and point them
- // at their respective wave data blocks.
- // AND enqueue them in the AvailableBuffers Queue.
- // AND allocate their buffers!!!
- for (unWHIndex = 0; unWHIndex < unNumBuffers; unWHIndex++)
- {
- UCHAR* pBuff;
- // Try to allocate the individual audio buffers
- pBuff = new UCHAR [unBufSize];
- if (!pBuff)
- {
- goto OnError;
- }
- ppWaveBuffers[unWHIndex] = pBuff;
- CWaveHeader* pWaveHeader = &pWaveHdrs[unWHIndex];
- // Init some header data before Preparing the header
- pWaveHeader->m_WAVEHDR.lpData = (char *)pBuff;
- pWaveHeader->m_WAVEHDR.dwUser = DWORD(pWaveHeader);
- pWaveHeader->m_WAVEHDR.dwFlags = 0L;
- pWaveHeader->m_WAVEHDR.dwBufferLength = unBufSize;
- pWaveHeader->m_WAVEHDR.dwLoops = 0L;
- pWaveHeader->m_bAvail = TRUE;
- pWaveHeader->m_pUser = this;
- m_pMutex->Lock();
- m_rAvailBuffers.EnQueuePtr(pWaveHeader);
- m_pMutex->Unlock();
- //OutputDebugString("BEFORE CALL TO:waveOutPrepareHeaderrn");
- tRes = waveOutPrepareHeader(m_hWave, LPWAVEHDR(&pWaveHeader->m_WAVEHDR), sizeof(WAVEHDR));
- //OutputDebugString("AFTER CALL TO:waveOutPrepareHeaderrn");
- if (tRes != MMSYSERR_NOERROR)
- {
- goto OnError;
- }
- else
- {
- pWaveHeader->m_pPrepared = TRUE;
- }
- }
- m_unAllocedBufferCnt = unNumBuffers;
- m_unAllocedBuffSize = unBufSize;
- m_pWaveHdrs = pWaveHdrs;
- m_ppAllocedBuffers = ppWaveBuffers;
- return TRUE;
- OnError:
- if (pWaveHdrs)
- {
- // Unprepare the individual headers
- for (unWHIndex = 0; unWHIndex < unNumBuffers; ++unWHIndex)
- {
- CWaveHeader* pWaveHeader = &pWaveHdrs[unWHIndex];
- if (pWaveHeader->m_pPrepared)
- {
- //OutputDebugString("BEFORE CALL TO:waveOutUnprepareHeaderrn");
- tRes = waveOutUnprepareHeader(m_hWave,
- LPWAVEHDR(&pWaveHeader->m_WAVEHDR), sizeof(WAVEHDR));
- //OutputDebugString("AFTER CALL TO:waveOutUnprepareHeaderrn");
- pWaveHeader->m_pPrepared = FALSE;
- }
- }
- delete[] pWaveHdrs;
- pWaveHdrs = NULL;
- }
- // ppWaveBuffers actually points at an array of pointers that need to be free'd
- if (ppWaveBuffers)
- {
- // Free the individual buffers
- for (unWHIndex = 0; unWHIndex < unNumBuffers; ++unWHIndex)
- {
- UCHAR* pBuff;
- pBuff = ppWaveBuffers[unWHIndex];
- if (pBuff)
- {
- delete[] pBuff;
- }
- }
- // Now free ppWaveBuffers itself
- delete[] ppWaveBuffers;
- ppWaveBuffers = NULL;
- }
- return FALSE;
- }
- /************************************************************************
- * Method:
- * CAudioOutWindows::_Imp_GetCurrentTime
- * Purpose:
- * Get the current time from the audio device.
- * We added this to support the clock available in the
- * Window's audio driver.
- */
- HX_RESULT CAudioOutWindows::_Imp_GetCurrentTime
- (
- ULONG32& ulCurrentTime
- )
- {
- ULONG32 ulDeviceTime = 0;
- ULONG32 ulDeviceBytesPlayed = 0;
- UINT32 ulDeviceSamplesPlayed = 0;
- WAVEFMTPTR pWFmt = m_WaveFormat.GetWaveFormat();
- // Set the time to the playback time of the
- // wave device since it's the most accurate.
- MMTIME mmTime;
- // we want MS if we can get them
- mmTime.wType = TIME_MS;
- MMRESULT res = waveOutGetPosition(m_hWave, &mmTime, sizeof(MMTIME));
- if (MMSYSERR_NOERROR == res)
- {
- // We must check the output format and convert to MS if possible
- switch (mmTime.wType)
- {
- case TIME_MS:
- {
- ulDeviceTime = mmTime.u.ms;
- #if defined(_WIN32)
- ULONG32 BitsPerSample = (pWFmt->nChannels * pWFmt->wBitsPerSample);
- #elif _WIN16
- ULONG32 BitsPerSample = (pWFmt->nAvgBytesPerSec * 8 / pWFmt->nSamplesPerSec);
- #endif
- ULONG32 BitsPerSecond = (BitsPerSample * pWFmt->nSamplesPerSec);
- ulDeviceBytesPlayed = (mmTime.u.ms * BitsPerSecond) / 8000;
- }
- break;
- case TIME_SAMPLES:
- {
- // Convert samples to MS
- ulDeviceSamplesPlayed = mmTime.u.sample;
- if (m_ulLastDeviceSamplesPlayed > ulDeviceSamplesPlayed &&
- ((m_ulLastDeviceSamplesPlayed - ulDeviceSamplesPlayed) > MAX_TIMESTAMP_GAP))
- {
- m_ulDevPosRollOver++;
- }
-
- m_ulLastDeviceSamplesPlayed = ulDeviceSamplesPlayed;
- m_llDeviceSamplesPlayed = (INT64)ulDeviceSamplesPlayed + (INT64)m_ulDevPosRollOver * (INT64)MAX_UINT32;
- ulDeviceTime = (ULONG32)(((float)m_llDeviceSamplesPlayed/(float)pWFmt->nSamplesPerSec)*1000.f);
- #if defined(_WIN32)
- ULONG32 BitsPerSample = (pWFmt->nChannels * pWFmt->wBitsPerSample);
- #elif _WIN16
- ULONG32 BitsPerSample = (pWFmt->nAvgBytesPerSec * 8 / pWFmt->nSamplesPerSec);
- #endif
- ulDeviceBytesPlayed = (ULONG32)(mmTime.u.sample * 8.0f) / BitsPerSample;
- }
- break;
- case TIME_BYTES:
- {
- // Convert Bytes to MS
- ulDeviceBytesPlayed = mmTime.u.cb;
- if (m_ulLastDeviceBytesPlayed > ulDeviceBytesPlayed &&
- ((m_ulLastDeviceBytesPlayed - ulDeviceBytesPlayed) > MAX_TIMESTAMP_GAP))
- {
- m_ulDevPosRollOver++;
- }
- m_ulLastDeviceBytesPlayed = ulDeviceBytesPlayed;
- m_llDeviceBytesPlayed = (INT64)ulDeviceBytesPlayed + (INT64)m_ulDevPosRollOver * (INT64)MAX_UINT32;
- //{FILE* f1 = ::fopen("c:\audio.txt", "a+"); ::fprintf(f1, "ulDeviceBytesPlayed: %lun", ulDeviceBytesPlayed);::fclose(f1);}
- #if defined(_WIN32)
- ULONG32 BitsPerSample = (pWFmt->nChannels * pWFmt->wBitsPerSample);
- #elif _WIN16
- ULONG32 BitsPerSample = (pWFmt->nAvgBytesPerSec * 8 / pWFmt->nSamplesPerSec);
- #endif
- ULONG32 BitsPerSecond = (BitsPerSample * pWFmt->nSamplesPerSec);
- ulDeviceTime = (ULONG32)((m_llDeviceBytesPlayed * 8000)/(INT64)BitsPerSecond); }
- break;
- }
- // ?? ulCurrentTime = ulDeviceTime + m_StreamTimeOffset + m_CorrectionOffset;
- ulCurrentTime = m_ulCurrentTime = ulDeviceTime;
- }
- else
- {
- ulCurrentTime = m_ulCurrentTime = 0;
- }
- //{FILE* f1 = ::fopen("c:\audio.txt", "a+"); ::fprintf(f1, "%lut%lun", HX_GET_TICKCOUNT(), m_ulCurrentTime);::fclose(f1);}
- return HXR_OK;
- }
- /************************************************************************
- * Method:
- * CAudioOutWindows::WaveOutProc
- * Purpose:
- * This static member function is called when the wave
- * device is finished playing its audio buffer. We use
- * it to tell audio services that we're ready for more.
- */
- #if defined(_WIN32)
- LRESULT __declspec(dllexport) CALLBACK
- #else
- LRESULT CALLBACK __export
- #endif
- CAudioOutWindows::WaveOutWndProc(HWND hWnd, // handle of window
- UINT uMsg, // message identifier
- WPARAM wParam, // first message parameter
- LPARAM lParam) // second message parameter)
- {
- DWORD dwParam1 = lParam;
- CAudioOutWindows* pThis = 0;
- if (uMsg == WM_NCCREATE)
- {
- CREATESTRUCT* lpCreate = 0;
- // Set our this pointer, so our WndProc can find us again
- lpCreate = (CREATESTRUCT FAR*) lParam;
- pThis = (CAudioOutWindows*) lpCreate->lpCreateParams;
- SetWindowLong(hWnd, OFFSET_THIS, (long) pThis);
- }
- else if (uMsg == WM_NCDESTROY)
- {
- // remove our this pointer so if somebody calls this function
- // again after the window is gone (and the object is gone
- // too) we don't try to call a method from the pointer
- SetWindowLong(hWnd, OFFSET_THIS, 0L);
- }
- else
- {
- pThis = (CAudioOutWindows*) (LPHANDLE)GetWindowLong(hWnd, OFFSET_THIS);
- }
- if (!pThis)
- {
- goto exit;
- }
- switch (uMsg)
- {
- case MM_WOM_DONE:
- HX_ASSERT(zm_bClosed || zm_pCurrentAudioDevice == pThis);
- if (!zm_bClosed && zm_pCurrentAudioDevice == pThis)
- {
- // Only do this on WOM_DONE, note there are other messages sent to this
- // callback function, like WOM_OPEN and WOM_CLOSE
- //DWORD dwTime1 = timeGetTime();
- //OutputDebugString("START:(uMsg == MM_WOM_DONE) in WaveOutThreadProcrn");
- pThis->m_pMutex->Lock();
- if (zm_bClosed)
- {
- pThis->m_pMutex->Unlock();
- goto exit;
- }
- WAVEHDR* pWAVEHDR;
- CWaveHeader* pWaveHeader;
-
- pWAVEHDR = (WAVEHDR*)dwParam1;
- pWaveHeader = (CWaveHeader*)pWAVEHDR->dwUser;
- /* We may have already removed it from the queue
- * while checking for _NumberOfBlocksRemainingToPlay
- */
- if ((pWAVEHDR->dwFlags & WHDR_DONE) &&
- !pThis->m_UsedBuffersList.IsEmpty() &&
- pThis->m_UsedBuffersList.GetHead() == (void*) pWaveHeader)
- {
- // put it back in the queue
- pWaveHeader->m_bAvail = TRUE;
- pThis->m_rAvailBuffers.EnQueuePtr(pWaveHeader);
- /* This is assuming that we get WOM_DONEs sequentially
- * There seems to be a bug in WIN16 where it may return
- * WOM_DONEs out of order. Need to be fixed for that
- * XXX Rahul
- */
- pThis->m_UsedBuffersList.RemoveHead();
- }
- pThis->m_pMutex->Unlock();
- if (pThis &&
- !pThis->m_bResetting)
- {
- // Call the base class's OnTimeSync to let it know that we're done playing
- // the current chunk of audio
- //OutputDebugString("BEFORE:pThis->OnTimeSync()rn");
- pThis->OnTimeSync();
- }
- }
- break;
- case MM_WOM_OPEN:
- break;
-
- case MM_WOM_CLOSE:
- break;
-
- default:
- break;
- }
- if (uMsg == zm_uDestroyMessage)
- {
- LRESULT result = (LRESULT)DestroyWindow(hWnd);
- // free the memory used by this class now that our window is destroyed
- UnregisterClass(WND_CLASS, g_hInstance);
- return result;
- }
- exit:
- return ( DefWindowProc(hWnd, uMsg, wParam, lParam) );
- }
- UINT16 CAudioOutWindows::_NumberOfBlocksRemainingToPlay(void)
- {
- m_pMutex->Lock();
- UINT16 unRemaining = m_UsedBuffersList.GetCount();
- /* There may be some buffers for which we have not receoved WOM_DONEs
- * but they have already been played
- */
- if (unRemaining > 0)
- {
- LISTPOSITION ndxLastUsed = NULL;
- LISTPOSITION ndxUsed = m_UsedBuffersList.GetHeadPosition();
- while (ndxUsed != NULL)
- {
- ndxLastUsed = ndxUsed;
- CWaveHeader* pWaveHeader =
- (CWaveHeader*) m_UsedBuffersList.GetNext(ndxUsed);
- if (pWaveHeader->m_WAVEHDR.dwFlags & WHDR_DONE)
- {
- if (unRemaining > 0)
- unRemaining--;
- // put it back in the queue
- pWaveHeader->m_bAvail = TRUE;
- m_rAvailBuffers.EnQueuePtr(pWaveHeader);
- m_UsedBuffersList.RemoveAt(ndxLastUsed);
- }
- else
- {
- /* We assume that subsequent blocks are also not done playing */
- break;
- }
- }
- }
- m_pMutex->Unlock();
- return unRemaining;
- }
- #if defined(_WIN32) && !defined(_WINCE)
- void
- CAudioOutWindows::CheckForVolumeSupport()
- {
- zm_bMixerVolSupportChecked = TRUE;
- if (!m_hWnd)
- {
- Register();
- }
- // if there is more than 1 mixer, we need to find out which is the current one
- // we do this by determining the mixer being used by the current wave device
- int startIndex = 0;
- if (m_hWave != NULL && mixerGetNumDevs() > 1)
- {
- UINT nId = -1;
- if ((mixerGetID((HMIXEROBJ)m_hWave, &nId, MIXER_OBJECTF_HWAVEOUT) == MMSYSERR_NOERROR) && nId != -1)
- {
- startIndex = nId;
- }
- }
- for(UINT index = startIndex; index < mixerGetNumDevs(); index++)
- {
- if(mixerOpen(&m_hMixer, index, (DWORD)m_hWnd, 0, CALLBACK_WINDOW)
- == MMSYSERR_NOERROR)
- {
- MIXERLINE mxLine;
- mxLine.cbStruct = sizeof(MIXERLINE);
- mxLine.dwComponentType = MIXERLINE_COMPONENTTYPE_SRC_WAVEOUT;
- if(mixerGetLineInfo((HMIXEROBJ)m_hMixer, &mxLine,
- MIXER_GETLINEINFOF_COMPONENTTYPE | MIXER_OBJECTF_HMIXER)
- == MMSYSERR_NOERROR)
- {
- // use waveOutSetVolume for bad device(i.e. crystal audio)
- if (zm_audioDevice == HXAUDIO_UNKNOWN && mxLine.Target.szPname)
- {
- for (int i = 0; i < g_nBadDrivers; i++)
- {
- if (_tcsstr(mxLine.Target.szPname, g_badDrivers[i]))
- {
- zm_audioDevice = HXAUDIO_BADDEVICE;
- break;
- }
- }
- if (zm_audioDevice == HXAUDIO_UNKNOWN)
- {
- zm_audioDevice = HXAUDIO_GOODDEVICE;
- }
- }
- if (zm_audioDevice != HXAUDIO_BADDEVICE)
- {
- MIXERCONTROL mxControl;
- mxControl.cbStruct = sizeof(MIXERCONTROL);
- MIXERLINECONTROLS mxLineControls;
- mxLineControls.cbStruct = sizeof(MIXERLINECONTROLS);
- mxLineControls.dwLineID = mxLine.dwLineID;
- mxLineControls.cControls = 1;
- mxLineControls.cbmxctrl = mxControl.cbStruct;
- mxLineControls.pamxctrl = &mxControl;
- mxLineControls.dwControlType = MIXERCONTROL_CONTROLTYPE_VOLUME |
- MIXERCONTROL_CONTROLF_UNIFORM;
- if(mixerGetLineControls((HMIXEROBJ)m_hMixer, &mxLineControls,
- MIXER_GETLINECONTROLSF_ONEBYTYPE | MIXER_OBJECTF_HMIXER)
- == MMSYSERR_NOERROR)
- {
- if(mxLineControls.cControls)
- {
- zm_bVolSupport = TRUE;
- zm_bMixerVolSupport = TRUE;
- m_VolumeControlDetails.cbStruct =
- sizeof(MIXERCONTROLDETAILS);
- m_VolumeControlDetails.dwControlID =
- mxControl.dwControlID;
- m_VolumeControlDetails.cChannels = 1;
- m_VolumeControlDetails.cMultipleItems =
- mxControl.cMultipleItems;
- }
- }
- }
- }
- break;
- }
- }
- }
- #endif /*_WIN32*/
- HX_RESULT
- CAudioOutWindows::Register()
- {
- WNDCLASS internalClass;
- // OutputDebugString("BEFORE CALL TO:Registerrn");
- if (m_hWnd)
- {
- return HXR_OK;
- }
- //m_hInst = hInst;
- m_hInst = g_hInstance;
- if (!m_hInst)
- {
- #ifdef _DEBUG
- MessageBox(NULL, _T("Don't have a valid handle"), NULL, MB_OK);
- #endif
- return HXR_OUTOFMEMORY;
- }
- // XXXKM - let's see if we can get the class info first; added this additional
- // check due to a strange problem when registering a class that seems to already
- // be registered. For some reason, under some circumstance, RegisterClass returns
- // NULL and GetLastError returns 0x57 (invalid parameter), however the class
- // is already registered
- if (!::GetClassInfo(m_hInst, WND_CLASS, &internalClass))
- {
- // First register our window class
- internalClass.style = 0;
- internalClass.lpfnWndProc = CAudioOutWindows::WaveOutWndProc;
- internalClass.cbClsExtra = 0;
- internalClass.cbWndExtra = sizeof( this );
- internalClass.hInstance = m_hInst; // Use app's instance
- internalClass.hIcon = 0;
- internalClass.hCursor = 0;
- internalClass.hbrBackground = 0;
- internalClass.lpszMenuName = NULL;
- internalClass.lpszClassName = WND_CLASS;
- #ifdef _WIN16
- if (!RegisterClass( &internalClass ))
- #else
- if (!RegisterClass( &internalClass ) && GetLastError() != ERROR_CLASS_ALREADY_EXISTS)
- #endif /* _WIN16 */
- {
- #ifdef _DEBUG
- MessageBox(NULL, _T("Could Not register class"), NULL, MB_OK);
- #endif
- return(HXR_OUTOFMEMORY);
- }
- m_bClassRegistered = TRUE;
- }
- // OutputDebugString("BEFORE CALL TO:CreateWindowrn");
- // Now create an instance of the window
- m_hWnd = CreateWindow( WND_CLASS /*"AudioServicesInternal"*/, _T("Audio Services Internal Messages"),
- WS_OVERLAPPED, 0, 0, 0, 0, NULL, NULL, m_hInst, this);
- #if defined(_WIN32)
- m_ulOriginalThreadId = GetCurrentThreadId();
- #endif
- if (!m_hWnd)
- {
- #ifdef _DEBUG
- MessageBox(NULL, _T("Could Not create messageWindow"), NULL, MB_OK);
- #endif
- return HXR_OUTOFMEMORY;
- }
- return HXR_OK;
- }
- void
- CAudioOutWindows::UnRegister()
- {
- // OutputDebugString("BEFORE CALL TO:UnRegisterrn");
- // Ask the window to destroy itself
- if (m_hWnd)
- {
- #if defined(_WIN32)
- if (m_ulOriginalThreadId == GetCurrentThreadId())
- {
- SendMessage(m_hWnd, zm_uDestroyMessage, 0, 0);
- }
- else
- {
- PostMessage(m_hWnd, zm_uDestroyMessage, 0, 0);
- Sleep(0);
- }
- #else
- SendMessage(m_hWnd, zm_uDestroyMessage, 0, 0);
- #endif
- m_hWnd = NULL;
- }
- /*
- // Ask the window to destroy itself
- if (m_hWnd && SendMessage(m_hWnd, zm_uDestroyMessage, 0, 0))
- {
- m_hWnd = NULL;
- }
- // free the memory used by this class now that our window is destroyed
- UnregisterClass(WND_CLASS, g_hInstance);
- */
- }