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quadrilateralcowboy/sys/win32/win_snd.cpp

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/*
===========================================================================
Doom 3 GPL Source Code
Copyright (C) 1999-2011 id Software LLC, a ZeniMax Media company.
This file is part of the Doom 3 GPL Source Code (?Doom 3 Source Code?).
Doom 3 Source Code is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
Doom 3 Source Code is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with Doom 3 Source Code. If not, see <http://www.gnu.org/licenses/>.
In addition, the Doom 3 Source Code is also subject to certain additional terms. You should have received a copy of these additional terms immediately following the terms and conditions of the GNU General Public License which accompanied the Doom 3 Source Code. If not, please request a copy in writing from id Software at the address below.
If you have questions concerning this license or the applicable additional terms, you may contact in writing id Software LLC, c/o ZeniMax Media Inc., Suite 120, Rockville, Maryland 20850 USA.
===========================================================================
*/
#include "../../idlib/precompiled.h"
#pragma hdrstop
// DirectX SDK
#include <DxErr.h>
#include <ks.h>
#include <ksmedia.h>
#include "../../sound/snd_local.h"
#include "win_local.h"
#include "../../openal/idal.cpp"
#define SAFE_DELETE(p) { if(p) { delete (p); (p)=NULL; } }
#define SAFE_DELETE_ARRAY(p) { if(p) { delete[] (p); (p)=NULL; } }
#define SAFE_RELEASE(p) { if(p) { (p)->Release(); (p)=NULL; } }
class idAudioBufferWIN32 : public idAudioBuffer {
public:
idAudioBufferWIN32( LPDIRECTSOUNDBUFFER apDSBuffer, dword dwDSBufferSize, idWaveFile* pWaveFile=NULL );
~idAudioBufferWIN32();
int FillBufferWithSound( LPDIRECTSOUNDBUFFER pDSB, bool bRepeatWavIfBufferLarger );
bool Lock( void **pDSLockedBuffer, ulong *dwDSLockedBufferSize );
bool Unlock(void *pDSLockedBuffer, dword dwDSLockedBufferSize );
bool GetCurrentPosition( ulong *pdwCurrentWriteCursor );
int Play( dword dwPriority=0, dword dwFlags=0 );
int Stop( void );
int Reset( void );
bool IsSoundPlaying( void );
void SetVolume( float x);
idWaveFile* m_pWaveFile;
private:
LPDIRECTSOUNDBUFFER m_apDSBuffer;
dword m_dwDSBufferSize;
int RestoreBuffer( LPDIRECTSOUNDBUFFER pDSB, bool* pbWasRestored );
};
class idAudioHardwareWIN32 : public idAudioHardware {
public:
idAudioHardwareWIN32();
~idAudioHardwareWIN32();
bool Initialize( );
bool InitializeSpeakers( byte *buffer, int bufferSize, dword dwPrimaryFreq, dword dwPrimaryBitRate, dword dwSpeakers );
void SetPrimaryBufferFormat( dword dwPrimaryFreq, dword dwPrimaryBitRate, dword dwSpeakers );
int Create( idWaveFile* pWaveFile, idAudioBuffer** ppiab );
int Create( idAudioBuffer** ppSound, const char* strWaveFileName, dword dwCreationFlags = 0 );
int CreateFromMemory( idAudioBufferWIN32** ppSound, byte* pbData, ulong ulDataSize, waveformatextensible_t *pwfx, dword dwCreationFlags = 0 );
bool Lock( void **pDSLockedBuffer, ulong *dwDSLockedBufferSize );
bool Unlock( void *pDSLockedBuffer, dword dwDSLockedBufferSize );
bool GetCurrentPosition( ulong *pdwCurrentWriteCursor );
int GetNumberOfSpeakers() { return numSpeakers; }
int GetMixBufferSize() { return MIXBUFFER_SAMPLES * blockAlign; }
// WIN32 driver doesn't support write API
bool Flush( void ) { return true; }
void Write( bool ) { }
short* GetMixBuffer( void ) { return NULL; }
private:
LPDIRECTSOUND m_pDS;
LPDIRECTSOUNDBUFFER pDSBPrimary;
idAudioBufferWIN32 *speakers;
int numSpeakers;
int bitsPerSample;
int bufferSize; // allocate buffer handed over to DirectSound
int blockAlign; // channels * bits per sample / 8: sound frame size
};
idAudioHardware *idAudioHardware::Alloc() { return new idAudioHardwareWIN32; }
idAudioHardware::~idAudioHardware() {}
/*
================
idAudioHardwareWIN32::idAudioHardware
================
*/
idAudioHardwareWIN32::idAudioHardwareWIN32() {
m_pDS = NULL;
pDSBPrimary = NULL;
speakers = NULL;
}
/*
================
idAudioHardwareWIN32::~idAudioHardware
================
*/
idAudioHardwareWIN32::~idAudioHardwareWIN32() {
SAFE_DELETE( speakers );
SAFE_RELEASE( pDSBPrimary );
SAFE_RELEASE( m_pDS );
}
/*
===============
idAudioHardwareWIN32::Initialize
===============
*/
bool idAudioHardwareWIN32::Initialize( void ) {
int hr;
bufferSize = 0;
numSpeakers = 0;
blockAlign = 0;
SAFE_RELEASE( m_pDS );
// Create IDirectSound using the primary sound device
if( FAILED( hr = DirectSoundCreate( NULL, &m_pDS, NULL ) )) {
return false;
}
// Set primary buffer format
SetPrimaryBufferFormat( PRIMARYFREQ, 16, idSoundSystemLocal::s_numberOfSpeakers.GetInteger() );
return true;
}
/*
===============
idAudioHardwareWIN32::InitializeSpeakers
===============
*/
bool idAudioHardwareWIN32::InitializeSpeakers( byte *speakerData, int bufferSize, dword dwPrimaryFreq, dword dwPrimaryBitRate, dword dwSpeakers ) {
if ( dwSpeakers == 2 ) {
WAVEFORMATEXTENSIBLE wfx;
ZeroMemory( &wfx, sizeof(WAVEFORMATEXTENSIBLE) );
wfx.Format.wFormatTag = WAVE_FORMAT_PCM;
wfx.Format.nChannels = 2;
wfx.Format.nSamplesPerSec = dwPrimaryFreq;
wfx.Format.wBitsPerSample = dwPrimaryBitRate;
wfx.Format.nBlockAlign = wfx.Format.wBitsPerSample / 8 * wfx.Format.nChannels;
wfx.Format.nAvgBytesPerSec = wfx.Format.nSamplesPerSec * wfx.Format.nBlockAlign;
wfx.Format.cbSize = sizeof(WAVEFORMATEX);
CreateFromMemory( &speakers, speakerData, bufferSize, (waveformatextensible_t *)&wfx );
common->Printf("sound: STEREO\n");
} else {
WAVEFORMATEXTENSIBLE waveFormatPCMEx;
ZeroMemory( &waveFormatPCMEx, sizeof(WAVEFORMATEXTENSIBLE) );
waveFormatPCMEx.Format.wFormatTag = WAVE_FORMAT_EXTENSIBLE;
waveFormatPCMEx.Format.nChannels = 6;
waveFormatPCMEx.Format.nSamplesPerSec = dwPrimaryFreq;
waveFormatPCMEx.Format.wBitsPerSample = dwPrimaryBitRate;
waveFormatPCMEx.Format.nBlockAlign = waveFormatPCMEx.Format.wBitsPerSample / 8 * waveFormatPCMEx.Format.nChannels;
waveFormatPCMEx.Format.nAvgBytesPerSec = waveFormatPCMEx.Format.nSamplesPerSec * waveFormatPCMEx.Format.nBlockAlign;
waveFormatPCMEx.dwChannelMask = KSAUDIO_SPEAKER_5POINT1;
// SPEAKER_FRONT_LEFT | SPEAKER_FRONT_RIGHT |
// SPEAKER_FRONT_CENTER | SPEAKER_LOW_FREQUENCY |
// SPEAKER_BACK_LEFT | SPEAKER_BACK_RIGHT
waveFormatPCMEx.SubFormat = KSDATAFORMAT_SUBTYPE_PCM; // Specify PCM
waveFormatPCMEx.Format.cbSize = sizeof(WAVEFORMATEXTENSIBLE);
waveFormatPCMEx.Samples.wValidBitsPerSample = 16;
CreateFromMemory( &speakers, speakerData, bufferSize, (waveformatextensible_t *)&waveFormatPCMEx );
common->Printf("sound: MULTICHANNEL\n");
}
if (!speakers) {
return false;
}
speakers->Play(0,DSBPLAY_LOOPING);
return true;
}
/*
===============
idAudioHardwareWIN32::SetPrimaryBufferFormat
Set primary buffer to a specified format
For example, to set the primary buffer format to 22kHz stereo, 16-bit
then: dwPrimaryChannels = 2
dwPrimaryFreq = 22050,
dwPrimaryBitRate = 16
===============
*/
void idAudioHardwareWIN32::SetPrimaryBufferFormat( dword dwPrimaryFreq, dword dwPrimaryBitRate, dword dwSpeakers ) {
HRESULT hr;
if( m_pDS == NULL ) {
return;
}
ulong cfgSpeakers;
m_pDS->GetSpeakerConfig( &cfgSpeakers );
DSCAPS dscaps;
dscaps.dwSize = sizeof(DSCAPS);
m_pDS->GetCaps(&dscaps);
if (dscaps.dwFlags & DSCAPS_EMULDRIVER) {
return;
}
// Get the primary buffer
DSBUFFERDESC dsbd;
ZeroMemory( &dsbd, sizeof(DSBUFFERDESC) );
dsbd.dwSize = sizeof(DSBUFFERDESC);
dsbd.dwFlags = DSBCAPS_PRIMARYBUFFER;
dsbd.dwBufferBytes = 0;
dsbd.lpwfxFormat = NULL;
// Obtain write-primary cooperative level.
if( FAILED( hr = m_pDS->SetCooperativeLevel(win32.hWnd, DSSCL_PRIORITY ) ) ) {
DXTRACE_ERR( TEXT("SetPrimaryBufferFormat"), hr );
return;
}
if( FAILED( hr = m_pDS->CreateSoundBuffer( &dsbd, &pDSBPrimary, NULL ) ) ) {
return;
}
if ( dwSpeakers == 6 && (cfgSpeakers == DSSPEAKER_5POINT1 || cfgSpeakers == DSSPEAKER_SURROUND) ) {
WAVEFORMATEXTENSIBLE waveFormatPCMEx;
ZeroMemory( &waveFormatPCMEx, sizeof(WAVEFORMATEXTENSIBLE) );
waveFormatPCMEx.Format.wFormatTag = WAVE_FORMAT_EXTENSIBLE;
waveFormatPCMEx.Format.nChannels = 6;
waveFormatPCMEx.Format.nSamplesPerSec = dwPrimaryFreq;
waveFormatPCMEx.Format.wBitsPerSample = (WORD) dwPrimaryBitRate;
waveFormatPCMEx.Format.nBlockAlign = waveFormatPCMEx.Format.wBitsPerSample / 8 * waveFormatPCMEx.Format.nChannels;
waveFormatPCMEx.Format.nAvgBytesPerSec = waveFormatPCMEx.Format.nSamplesPerSec * waveFormatPCMEx.Format.nBlockAlign;
waveFormatPCMEx.dwChannelMask = KSAUDIO_SPEAKER_5POINT1;
// SPEAKER_FRONT_LEFT | SPEAKER_FRONT_RIGHT |
// SPEAKER_FRONT_CENTER | SPEAKER_LOW_FREQUENCY |
// SPEAKER_BACK_LEFT | SPEAKER_BACK_RIGHT
waveFormatPCMEx.SubFormat = KSDATAFORMAT_SUBTYPE_PCM; // Specify PCM
waveFormatPCMEx.Format.cbSize = sizeof(WAVEFORMATEXTENSIBLE);
waveFormatPCMEx.Samples.wValidBitsPerSample = 16;
if( FAILED( hr = pDSBPrimary->SetFormat((WAVEFORMATEX*)&waveFormatPCMEx) ) ) {
DXTRACE_ERR( TEXT("SetPrimaryBufferFormat"), hr );
return;
}
numSpeakers = 6; // force it to think 5.1
blockAlign = waveFormatPCMEx.Format.nBlockAlign;
} else {
if (dwSpeakers == 6) {
common->Printf("sound: hardware reported unable to use multisound, defaulted to stereo\n");
}
WAVEFORMATEX wfx;
ZeroMemory( &wfx, sizeof(WAVEFORMATEX) );
wfx.wFormatTag = WAVE_FORMAT_PCM;
wfx.nChannels = 2;
wfx.nSamplesPerSec = dwPrimaryFreq;
wfx.wBitsPerSample = (WORD) dwPrimaryBitRate;
wfx.nBlockAlign = wfx.wBitsPerSample / 8 * wfx.nChannels;
wfx.nAvgBytesPerSec = wfx.nSamplesPerSec * wfx.nBlockAlign;
wfx.cbSize = sizeof(WAVEFORMATEX);
if( FAILED( hr = pDSBPrimary->SetFormat(&wfx) ) ) {
return;
}
numSpeakers = 2; // force it to think stereo
blockAlign = wfx.nBlockAlign;
}
byte *speakerData;
bufferSize = MIXBUFFER_SAMPLES * sizeof(word) * numSpeakers * ROOM_SLICES_IN_BUFFER;
speakerData = (byte *)Mem_Alloc( bufferSize );
memset( speakerData, 0, bufferSize );
InitializeSpeakers( speakerData, bufferSize, dwPrimaryFreq, dwPrimaryBitRate, numSpeakers );
}
/*
===============
idAudioHardwareWIN32::Create
===============
*/
int idAudioHardwareWIN32::Create( idAudioBuffer** ppSound,
const char* strWaveFileName,
dword dwCreationFlags ) {
int hr;
LPDIRECTSOUNDBUFFER apDSBuffer = NULL;
dword dwDSBufferSize = NULL;
idWaveFile* pWaveFile = NULL;
if( m_pDS == NULL )
return -1;
if( strWaveFileName == NULL || ppSound == NULL )
return -1;
pWaveFile = new idWaveFile();
pWaveFile->Open( strWaveFileName, NULL );
if( pWaveFile->GetOutputSize() == 0 ) {
// Wave is blank, so don't create it.
hr = E_FAIL;
goto LFail;
}
// Make the DirectSound buffer the same size as the wav file
dwDSBufferSize = pWaveFile->GetOutputSize();
// Create the direct sound buffer, and only request the flags needed
// since each requires some overhead and limits if the buffer can
// be hardware accelerated
DSBUFFERDESC dsbd;
memset( &dsbd, 0, sizeof(DSBUFFERDESC) );
dsbd.dwSize = sizeof(DSBUFFERDESC);
dsbd.dwFlags = dwCreationFlags;
dsbd.dwBufferBytes = dwDSBufferSize;
dsbd.guid3DAlgorithm = GUID_NULL;
dsbd.lpwfxFormat = (WAVEFORMATEX*)&pWaveFile->mpwfx;
// DirectSound is only guarenteed to play PCM data. Other
// formats may or may not work depending the sound card driver.
if( FAILED( hr = m_pDS->CreateSoundBuffer( &dsbd, &apDSBuffer, NULL ) ) )
return -1;
// Create the sound
*ppSound = new idAudioBufferWIN32( apDSBuffer, dwDSBufferSize, pWaveFile );
pWaveFile->Close();
return 0;
LFail:
// Cleanup
SAFE_DELETE( pWaveFile );
return -1;
}
/*
===============
idAudioHardwareWIN32::Create
===============
*/
int idAudioHardwareWIN32::Create( idWaveFile* pWaveFile, idAudioBuffer** ppiab ) {
int hr;
LPDIRECTSOUNDBUFFER apDSBuffer = NULL;
dword dwDSBufferSize = NULL;
if( m_pDS == NULL )
return -1;
if( pWaveFile == NULL )
return -1;
*ppiab = NULL;
if( pWaveFile->GetOutputSize() == 0 ) {
// Wave is blank, so don't create it.
hr = E_FAIL;
goto LFail;
}
// Make the DirectSound buffer the same size as the wav file
dwDSBufferSize = pWaveFile->GetOutputSize();
// Create the direct sound buffer, and only request the flags needed
// since each requires some overhead and limits if the buffer can
// be hardware accelerated
DSBUFFERDESC dsbd;
memset( &dsbd, 0, sizeof(DSBUFFERDESC) );
dsbd.dwSize = sizeof(DSBUFFERDESC);
dsbd.dwFlags = 0;
dsbd.dwBufferBytes = dwDSBufferSize;
dsbd.guid3DAlgorithm = GUID_NULL;
dsbd.lpwfxFormat = (WAVEFORMATEX*)&pWaveFile->mpwfx;
// DirectSound is only guarenteed to play PCM data. Other
// formats may or may not work depending the sound card driver.
if( FAILED( hr = m_pDS->CreateSoundBuffer( &dsbd, &apDSBuffer, NULL ) ) )
return -1;
// Create the sound
*ppiab = new idAudioBufferWIN32( apDSBuffer, dwDSBufferSize, pWaveFile );
return 0;
LFail:
// Cleanup
SAFE_DELETE( pWaveFile );
return -1;
}
//-----------------------------------------------------------------------------
// Name: idAudioHardwareWIN32::CreateFromMemory()
// Desc:
//-----------------------------------------------------------------------------
int idAudioHardwareWIN32::CreateFromMemory( idAudioBufferWIN32** ppSound,
byte* pbData,
ulong ulDataSize,
waveformatextensible_t* pwfx,
dword dwCreationFlags ) {
int hr;
LPDIRECTSOUNDBUFFER apDSBuffer = NULL;
dword dwDSBufferSize = NULL;
idWaveFile* pWaveFile = NULL;
if( m_pDS == NULL )
return -1;
if( pbData == NULL || ppSound == NULL )
return -1;
pWaveFile = new idWaveFile();
pWaveFile->OpenFromMemory( (short *)pbData, ulDataSize, (waveformatextensible_t *)pwfx);
// Make the DirectSound buffer the same size as the wav file
dwDSBufferSize = ulDataSize;
// Create the direct sound buffer, and only request the flags needed
// since each requires some overhead and limits if the buffer can
// be hardware accelerated
DSBUFFERDESC dsbd;
memset( &dsbd, 0, sizeof(DSBUFFERDESC) );
dsbd.dwSize = sizeof(DSBUFFERDESC);
dsbd.dwFlags = dwCreationFlags | DSBCAPS_GETCURRENTPOSITION2;
dsbd.dwBufferBytes = dwDSBufferSize;
dsbd.guid3DAlgorithm = GUID_NULL;
dsbd.lpwfxFormat = (WAVEFORMATEX *)pwfx;
if( FAILED( hr = m_pDS->CreateSoundBuffer( &dsbd, &apDSBuffer, NULL ) ) )
return -1;
// Create the sound
*ppSound = new idAudioBufferWIN32( apDSBuffer, dwDSBufferSize, pWaveFile );
return S_OK;
}
/*
===============
idAudioHardwareWIN32::Lock
===============
*/
bool idAudioHardwareWIN32::Lock( void **pDSLockedBuffer, ulong *dwDSLockedBufferSize ) {
if (speakers) {
return speakers->Lock( pDSLockedBuffer, dwDSLockedBufferSize );
}
return false;
}
/*
===============
idAudioHardwareWIN32::Unlock
===============
*/
bool idAudioHardwareWIN32::Unlock(void *pDSLockedBuffer, dword dwDSLockedBufferSize ) {
if (speakers) {
return speakers->Unlock( pDSLockedBuffer, dwDSLockedBufferSize );
}
return false;
}
/*
===============
idAudioHardwareWIN32::GetCurrentPosition
===============
*/
bool idAudioHardwareWIN32::GetCurrentPosition( ulong *pdwCurrentWriteCursor ) {
if (speakers) {
return speakers->GetCurrentPosition( pdwCurrentWriteCursor );
}
return false;
}
static HMODULE hOpenAL = NULL;
/*
===============
Sys_LoadOpenAL
===============
*/
bool Sys_LoadOpenAL( void ) {
#if ID_OPENAL
const char *sym;
if ( hOpenAL ) {
return true;
}
hOpenAL = LoadLibrary( idSoundSystemLocal::s_libOpenAL.GetString() );
if ( !hOpenAL ) {
common->Warning( "LoadLibrary %s failed.", idSoundSystemLocal::s_libOpenAL.GetString() );
return false;
}
if ( ( sym = InitializeIDAL( hOpenAL ) ) ) {
common->Warning( "GetProcAddress %s failed.", sym );
FreeLibrary( hOpenAL );
hOpenAL = NULL;
return false;
}
return true;
#else
return false;
#endif
}
/*
===============
Sys_FreeOpenAL
===============
*/
void Sys_FreeOpenAL( void ) {
if ( hOpenAL ) {
FreeLibrary( hOpenAL );
hOpenAL = NULL;
}
}
/*
===============
idAudioBufferWIN32::idAudioBuffer
===============
*/
idAudioBufferWIN32::idAudioBufferWIN32( LPDIRECTSOUNDBUFFER apDSBuffer, dword dwDSBufferSize, idWaveFile* pWaveFile ) {
m_apDSBuffer = apDSBuffer;
m_dwDSBufferSize = dwDSBufferSize;
m_pWaveFile = pWaveFile;
if (pWaveFile) {
FillBufferWithSound( m_apDSBuffer, false );
m_apDSBuffer->SetCurrentPosition(0);
}
}
/*
===============
idAudioBufferWIN32::~idAudioBuffer
===============
*/
idAudioBufferWIN32::~idAudioBufferWIN32() {
SAFE_DELETE(m_pWaveFile);
SAFE_RELEASE( m_apDSBuffer );
m_pWaveFile = NULL;
m_apDSBuffer = NULL;
}
/*
===============
idAudioBufferWIN32::FillBufferWithSound
===============
*/
int idAudioBufferWIN32::FillBufferWithSound( LPDIRECTSOUNDBUFFER pDSB, bool bRepeatWavIfBufferLarger ) {
int hr;
void* pDSLockedBuffer = NULL; // Pointer to locked buffer memory
ulong dwDSLockedBufferSize = 0; // Size of the locked DirectSound buffer
int dwWavDataRead = 0; // Amount of data read from the wav file
if( pDSB == NULL )
return -1;
// we may not even have a wavefile
if (m_pWaveFile==NULL) {
return -1;
}
// Make sure we have focus, and we didn't just switch in from
// an app which had a DirectSound device
if( FAILED( hr = RestoreBuffer( pDSB, NULL ) ) ) {
DXTRACE_ERR( TEXT("RestoreBuffer"), hr );
return -1;
}
// Lock the buffer down
if( FAILED( hr = pDSB->Lock( 0, m_dwDSBufferSize, &pDSLockedBuffer, &dwDSLockedBufferSize, NULL, NULL, 0L ) ) ) {
DXTRACE_ERR( TEXT("Lock"), hr );
return -1;
}
// Reset the wave file to the beginning
m_pWaveFile->ResetFile();
if( FAILED( hr = m_pWaveFile->Read( (byte*) pDSLockedBuffer, dwDSLockedBufferSize, &dwWavDataRead ) ) ) {
return DXTRACE_ERR( TEXT("Read"), hr );
}
if( dwWavDataRead == 0 ) {
// Wav is blank, so just fill with silence
memset( pDSLockedBuffer, (byte)(m_pWaveFile->mpwfx.Format.wBitsPerSample == 8 ? 128 : 0 ), dwDSLockedBufferSize );
} else if( dwWavDataRead < (int)dwDSLockedBufferSize ) {
// If the wav file was smaller than the DirectSound buffer,
// we need to fill the remainder of the buffer with data
if( bRepeatWavIfBufferLarger ) {
// Reset the file and fill the buffer with wav data
int dwReadSoFar = dwWavDataRead; // From previous call above.
while( dwReadSoFar < (int)dwDSLockedBufferSize ) {
// This will keep reading in until the buffer is full
// for very short files
if( FAILED( hr = m_pWaveFile->ResetFile() ) ) {
return DXTRACE_ERR( TEXT("ResetFile"), hr );
}
hr = m_pWaveFile->Read( (byte*)pDSLockedBuffer + dwReadSoFar, dwDSLockedBufferSize - dwReadSoFar, &dwWavDataRead );
if( FAILED(hr) ) {
return DXTRACE_ERR( TEXT("Read"), hr );
}
dwReadSoFar += dwWavDataRead;
}
} else {
// Don't repeat the wav file, just fill in silence
memset( (byte*) pDSLockedBuffer + dwWavDataRead, (byte)(m_pWaveFile->mpwfx.Format.wBitsPerSample == 8 ? 128 : 0 ), dwDSLockedBufferSize - dwWavDataRead);
}
}
// Unlock the buffer, we don't need it anymore.
pDSB->Unlock( pDSLockedBuffer, dwDSLockedBufferSize, NULL, 0 );
return S_OK;
}
/*
===============
idAudioBufferWIN32::RestoreBuffer
Desc: Restores the lost buffer. *pbWasRestored returns true if the buffer was
restored. It can also NULL if the information is not needed.
===============
*/
int idAudioBufferWIN32::RestoreBuffer( LPDIRECTSOUNDBUFFER pDSB, bool* pbWasRestored ) {
int hr;
if( pDSB == NULL ) {
return -1;
}
if( pbWasRestored ) {
*pbWasRestored = false;
}
ulong dwStatus;
if( FAILED( hr = pDSB->GetStatus( &dwStatus ) ) ) {
return DXTRACE_ERR( TEXT("GetStatus"), hr );
}
if( dwStatus & DSBSTATUS_BUFFERLOST ) {
// Since the app could have just been activated, then
// DirectSound may not be giving us control yet, so
// the restoring the buffer may fail.
// If it does, sleep until DirectSound gives us control.
do {
hr = pDSB->Restore();
if( hr == DSERR_BUFFERLOST ) {
Sleep( 10 );
}
hr = pDSB->Restore();
} while( hr );
if( pbWasRestored != NULL ) {
*pbWasRestored = true;
}
return S_OK;
} else {
return S_FALSE;
}
}
/*
===============
idAudioBufferWIN32::Play
Desc: Plays the sound using voice management flags. Pass in DSBPLAY_LOOPING
in the dwFlags to loop the sound
===============
*/
int idAudioBufferWIN32::Play( dword dwPriority, dword dwFlags ) {
int hr;
bool bRestored;
if( m_apDSBuffer == NULL ) {
return -1;
}
// Restore the buffer if it was lost
if( FAILED( hr = RestoreBuffer( m_apDSBuffer, &bRestored ) ) ) {
common->Error( TEXT("RestoreBuffer"), hr );
}
if( bRestored ) {
// The buffer was restored, so we need to fill it with new data
if( FAILED( hr = FillBufferWithSound( m_apDSBuffer, false ) ) ) {
common->Error( TEXT("FillBufferWithSound"), hr );
}
// Make DirectSound do pre-processing on sound effects
Reset();
}
m_apDSBuffer->Play( 0, dwPriority, dwFlags );
return 0;
}
/*
===============
idAudioBufferWIN32::Stop
Desc: Stops the sound from playing
===============
*/
int idAudioBufferWIN32::Stop() {
if( this == NULL || m_apDSBuffer == NULL ) {
return -1;
}
m_apDSBuffer->Stop();
return 0;
}
/*
===============
idAudioBufferWIN32::Reset
Desc: Reset all of the sound buffers
===============
*/
int idAudioBufferWIN32::Reset() {
if( m_apDSBuffer == NULL ) {
return -1;
}
m_apDSBuffer->SetCurrentPosition( 0 );
return 0;
}
/*
===============
idAudioBufferWIN32::IsSoundPlaying
Desc: Checks to see if a buffer is playing and returns true if it
===============
*/
bool idAudioBufferWIN32::IsSoundPlaying( ) {
if( m_apDSBuffer == NULL ) {
return false;
}
if( m_apDSBuffer ) {
ulong dwStatus = 0;
m_apDSBuffer->GetStatus( &dwStatus );
if ( dwStatus & DSBSTATUS_PLAYING ) {
return true;
}
}
return false;
}
/*
===============
idAudioBufferWIN32::Lock
===============
*/
bool idAudioBufferWIN32::Lock( void **pDSLockedBuffer, ulong *dwDSLockedBufferSize ) {
int hr;
// Restore the buffer if it was lost
bool bRestored;
if( FAILED( hr = RestoreBuffer( m_apDSBuffer, &bRestored ) ) ) {
return false;
}
// Lock the DirectSound buffer
if( FAILED( hr = m_apDSBuffer->Lock( 0, m_dwDSBufferSize, pDSLockedBuffer, dwDSLockedBufferSize, NULL, NULL, 0 ) ) ) {
return false;
}
return true;
}
/*
===============
idAudioBufferWIN32::Unlock
===============
*/
bool idAudioBufferWIN32::Unlock(void *pDSLockedBuffer, dword dwDSLockedBufferSize ) {
// Unlock the DirectSound buffer
m_apDSBuffer->Unlock( pDSLockedBuffer, dwDSLockedBufferSize, NULL, 0 );
return true;
}
/*
===============
idAudioBufferWIN32::GetCurrentPosition
===============
*/
bool idAudioBufferWIN32::GetCurrentPosition( ulong *pdwCurrentWriteCursor ) {
int hr;
// Make sure we have focus, and we didn't just switch in from
// an app which had a DirectSound device
if( FAILED( hr = RestoreBuffer( m_apDSBuffer, NULL ) ) ) {
DXTRACE_ERR( TEXT("RestoreBuffer"), hr );
return false;
}
if( FAILED( hr = m_apDSBuffer->GetCurrentPosition( NULL, pdwCurrentWriteCursor ) ) ) {
return false;
}
return true;
}
/*
===============
idAudioBufferWIN32::SetVolume
===============
*/
void idAudioBufferWIN32::SetVolume( float x) {
if (m_apDSBuffer) {
m_apDSBuffer->SetVolume(x);
}
}
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