BOOL HowToUseStreamBuffer(LPDIRECTSOUNDBUFFER8 lpDsb, DWORD dwOffset, LPBYTE lpbSoundData, DWORD dwSoundBytes)
{
LPVOID lpvPtr1;
DWORD dwBytes1;
LPVOID lpvPtr2;
DWORD dwBytes2;
HRESULT hr;
//获得锁定内存的首地址
hr = lpDsb->Lock(dwOffset, dwSoundBytes, &lpvPtr1, &dwBytes1, &lpvPtr2, &dwBytes2, 0);
//如果缓存丢失，要重新装载并重试锁定
if (DSERR_BUFFERLOST == hr){
lpDsb->Restore();
hr = lpDsb->Lock(dwOffset, dwSoundBytes, &lpvPtr1, &dwBytes1, &lpvPtr2, &dwBytes2, 0);
}
if (SUCCEEDED(hr)){
CopyMemory(lpvPtr1, lpbSoundData, dwBytes1);
if (NULL != lpvPtr2){
CopyMemory(lpvPtr2, lpbSoundData+dwBytes1, dwBytes2);
}
hr = lpDsb->Unlock(lpvPtr1, dwBytes1, lpvPtr2, dwBytes2);
if (SUCCEEDED(hr)){
return TRUE;
}
}
//Lock, Unlock, or Restore failed
return FALSE;
}
/**
* @brief Main play routine - fill the buffer to be replayed by DirectSound subsystem.
* @details This routine copies the received playback data from the 'userspace' to the
* DirectSound provided buffer. This buffer will be then replayed by the DirectSound subsystem if such need
* arises.
* @param[in] p_buffer - pointer to the secondary buffer into which data will be replayed.
* @param[in] p_fifo - pointer to the FIFO queue from which data will be fetched.
* @param[in] idx - index of the part of the DirectSound chunk into which copy data.
* @return returns S_OK on success, any other result indicates a failure.
*/
static HRESULT fill_buffer(LPDIRECTSOUNDBUFFER8 p_buffer, fifo_circular_buffer * p_fifo, size_t idx)
{
LPVOID lpvWrite1;
DWORD dwLength1;
HRESULT hr;
DWORD dwOffset;
dwOffset = idx * 1024;
hr = p_buffer->Lock(dwOffset, // Offset at which to start lock.
1024, // Size of lock;
(LPVOID*)&lpvWrite1, // Gets address of first part of lock.
&dwLength1, // Gets size of first part of lock.
NULL, /* Second part not needed as we will never wrap around - we lock equal buffer chunks */
NULL,
0); // Flag.
if (SUCCEEDED(hr))
{
size_t size;
size = 1024;
/* Copy as many items as you can, no more than chunk size, into the buffer */
if (fifo_circular_buffer_get_items_count(p_fifo)>0)
{
fifo_circular_buffer_fetch_item(p_fifo, (uint8_t*)lpvWrite1, &size);
}
hr = p_buffer->Unlock(lpvWrite1, dwLength1, NULL, 0);
}
else
{
debug_outputln("%4.4u %s : 0x%8.8x", __FILE__, __LINE__, hr);
}
return hr;
}
BOOL WriteWAVData( LPDIRECTSOUNDBUFFER8 lpDSB, LPBYTE lpWaveData, DWORD dwWriteBytes )
{
HRESULT dsval;
if (lpDSB && lpWaveData && dwWriteBytes)
{
LPVOID lpAudioPtr1, lpAudioPtr2;
DWORD dwAudioBytes1, dwAudioBytes2;
dsval = lpDSB->Lock(0, dwWriteBytes, &lpAudioPtr1, &dwAudioBytes1, &lpAudioPtr2, &dwAudioBytes2, 0);
if (dsval == DS_OK)
{
CopyMemory(lpAudioPtr1, lpWaveData, dwAudioBytes1);
if( dwAudioBytes2 != 0)
CopyMemory(lpAudioPtr2, lpWaveData + dwAudioBytes1, dwAudioBytes2);
lpDSB->Unlock(lpAudioPtr1, dwAudioBytes1, lpAudioPtr2, dwAudioBytes2);
return TRUE;
}
}
return FALSE;
}
UINT HandleNotifications(LPVOID)
{
DWORD hr = DS_OK;
DWORD hRet = 0;
thn=FALSE;
thn1=FALSE;
char* pdsb1;
char* pdsb2;
syukai=0;
// char bufwav2[OUTPUT_BUFFER_SIZE];
HANDLE ev[] = {(HANDLE)og->timer};
// ULONG PlayCursor,WriteCursor=OUTPUT_BUFFER_SIZE*4,oldw=OUTPUT_BUFFER_SIZE*4;
ULONG PlayCursor,WriteCursor=0,oldw=OUTPUT_BUFFER_SIZE*2,oldw2;
m_dsb->SetCurrentPosition(0);
if(mode==-10){
oldw=OUTPUT_BUFFER_SIZE*2;
og->timer.SetEvent();
}
fade1=0;
for(;;){
DWORD dwDataLen = WAVDALen/10;
if(syukai==2) {thn=TRUE;AfxEndThread(0);}
if(syukai==1) {syukai2=1;continue;}
// int ik;
// for(ik=0;ik<60;ik++){
// if(syukai)
::WaitForMultipleObjects(1, ev, FALSE, 40);
// else
//Sleep(1);
if (sek == 1) {
if (m_dsb)m_dsb->Stop();
oldw = 0;
if ((mode >= 10 && mode <= 20) || mode < -10) {
playwavadpcm(bufwav3, oldw, OUTPUT_BUFFER_SIZE / 12 * wavch * 2, 0);//データ獲得
}
else if (mode == -10) {
playwavmp3(bufwav3, oldw, OUTPUT_BUFFER_SIZE / 12 * wavch * 2, 0);//データ獲得
}
else if (mode == -3) {
playwavkpi(bufwav3, oldw, OUTPUT_BUFFER_SIZE / 12 * wavch * 2, 0);//データ獲得
}
else if (mode == -8) {
playwavflac(bufwav3, oldw, OUTPUT_BUFFER_SIZE / 12 * wavch * 2, 0);//データ獲得
}
else if (mode == -9) {
playwavm4a(bufwav3, oldw, OUTPUT_BUFFER_SIZE / 12 * wavch * 2, 0);//データ獲得
}
else {
playwavds2(bufwav3, oldw, OUTPUT_BUFFER_SIZE / 12 * wavch * 2, 0);//データ獲得
}
oldw = OUTPUT_BUFFER_SIZE / 12 * wavch * 2; WriteCursor = OUTPUT_BUFFER_SIZE / 12 * wavch * 2;
if(m_dsb)m_dsb->SetCurrentPosition(0);
if(m_dsb)m_dsb->Play(0,0,DSBPLAY_LOOPING);
sek=FALSE;
//break;
}
if(thn1) {thn=TRUE;AfxEndThread(0);}
// }
if(ps==1) continue;
if(m_dsb)m_dsb->GetCurrentPosition(&PlayCursor, &WriteCursor);//再生位置取得
int len1=0,len2=0,len3,len4;
// oldw = ((oldw / (wavch * 2)) * (wavch * 2));
len1=(int)WriteCursor-(int)oldw;//書き込み範囲取得10
len2=0;
if (len1 == 0 && len2 == 0) continue;
if(len1<0){
len1=OUTPUT_BUFFER_SIZE*OUTPUT_BUFFER_NUM-oldw; len2= WriteCursor;}
if(len2<0)
len2=0;
//len1 = (len1 / (wavsam / 8)) * (wavsam / 8);
//len2 = (len2 / (wavsam / 8)) * (wavsam / 8);
len4=len1+len2;
if((mode>=10 && mode<=20) || mode<-10)
playwavadpcm(bufwav3,oldw,len1,len2);//データ獲得
else if(mode==-10)
len4=playwavmp3(bufwav3,oldw,len1,len2);//データ獲得
else if(mode==-3)
len4=playwavkpi(bufwav3,oldw,len1,len2);//データ獲得
else if (mode == -8)
playwavflac(bufwav3, oldw, len1, len2);//データ獲得
else if (mode == -9)
playwavm4a(bufwav3, oldw, len1, len2);//データ獲得
else
playwavds2(bufwav3,oldw,len1,len2);//データ獲得
if(m_dsb){
m_dsb->Lock(oldw,len4,(LPVOID *)&pdsb1,(DWORD*)&len3,(LPVOID *)&pdsb2,(DWORD*)&len4,0);
thn=FALSE;
Sleep(20);
thn=FALSE;
memcpy(pdsb1,bufwav3+oldw,len3);
if(len4!=0)memcpy(pdsb2,bufwav3,len4);
if(m_dsb)m_dsb->Unlock(pdsb1,len3,pdsb2,len4);
oldw2=oldw+len3;
if(len4!=0)oldw2=len4;
oldw=WriteCursor;
// oldw+=(len3+len4);
// oldw%=OUTPUT_BUFFER_SIZE*OUTPUT_BUFFER_NUM;
}
if(fade1){
// if(m_dsb){
// m_dsb->Lock(0,OUTPUT_BUFFER_SIZE*OUTPUT_BUFFER_NUM,(LPVOID *)&pdsb1,(DWORD*)&len3,(LPVOID *)&pdsb2,(DWORD*)&len4,0);
// ZeroMemory(pdsb1,len3);
// if(len4!=0)ZeroMemory(pdsb2,len4);
// m_dsb->Unlock(pdsb1,len3,pdsb2,len4);
// }
// Sleep(750);
oldw=oldw2-(wavbit);
if(((int)oldw)<=0)oldw=wavbit;
int flgn=0;
playf = 1;
thn = FALSE;
if(m_dsb && thn==FALSE){
m_dsb->GetCurrentPosition(&PlayCursor, &WriteCursor);
if(oldw<=PlayCursor) flgn=1;
// DWORD time=timeGetTime()+3000;
for(;;){
// if(time<timeGetTime()) break;
DoEvent();
if(m_dsb)m_dsb->GetCurrentPosition(&PlayCursor, &WriteCursor);
if(oldw>PlayCursor){flgn=0; continue;}
if(oldw<=PlayCursor && flgn==0) break;
}
}
// m_dsb->SetVolume(DSBVOLUME_MIN);
// m_dsb->Stop();
og->OnPause();
playf=0;
thn=TRUE;
AfxEndThread(0);
// for(int y=0;y<11;y++){
// CloseHandle(hNotifyEvent[y]);hNotifyEvent[y] = (HANDLE)NULL;
// }
return 0;
}
}
} //handlenotifications()