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winmm: Truncate buffers to align to frame size.

This commit is contained in:
Andrew Eikum 2013-03-11 06:42:19 -05:00 committed by Alexandre Julliard
parent 4f1beed106
commit f74128f132
1 changed files with 17 additions and 13 deletions
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30
dlls/winmm/waveform.c
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@ -1467,6 +1467,11 @@ static LRESULT WID_Close(HWAVEIN hwave)
return MMSYSERR_NOERROR;
}
static DWORD WINMM_FixedBufferLen(DWORD length, WINMM_Device *device)
{
return length - length % device->bytes_per_frame;
}
static LRESULT WINMM_PrepareHeader(HWAVE hwave, WAVEHDR *header)
{
WINMM_Device *device = WINMM_GetDeviceFromHWAVE(hwave);
@ -1550,10 +1555,10 @@ static UINT32 WINMM_HeaderLenBytes(WINMM_Device *device, WAVEHDR *header)
{
if(device->acm_handle){
ACMSTREAMHEADER *ash = (ACMSTREAMHEADER*)header->reserved;
return ash->cbDstLengthUsed;
return WINMM_FixedBufferLen(ash->cbDstLengthUsed, device);
}
return header->dwBufferLength;
return WINMM_FixedBufferLen(header->dwBufferLength, device);
}
static UINT32 WINMM_HeaderLenFrames(WINMM_Device *device, WAVEHDR *header)
@ -1690,14 +1695,11 @@ static void WOD_PushData(WINMM_Device *device)
queue = device->playing;
if(device->acm_handle){
ACMSTREAMHEADER *ash = (ACMSTREAMHEADER*)queue->reserved;
queue_bytes = ash->cbDstLengthUsed;
queue_data = ash->pbDst;
}else{
queue_bytes = queue->dwBufferLength;
queue_bytes = WINMM_HeaderLenBytes(device, queue);
if(device->acm_handle)
queue_data = ((ACMSTREAMHEADER*)queue->reserved)->pbDst;
else
queue_data = (BYTE*)queue->lpData;
}
queue_frames = (queue_bytes - device->ofs_bytes) /
device->bytes_per_frame;
@ -1817,8 +1819,8 @@ static void WID_PullACMData(WINMM_Device *device)
while(queue){
UINT32 to_copy_bytes;
to_copy_bytes = min(queue->dwBufferLength - queue->dwBytesRecorded,
device->acm_hdr.cbDstLengthUsed - device->acm_offs);
to_copy_bytes = min(WINMM_FixedBufferLen(queue->dwBufferLength, device) - queue->dwBytesRecorded,
WINMM_FixedBufferLen(device->acm_hdr.cbDstLengthUsed, device) - device->acm_offs);
memcpy(queue->lpData + queue->dwBytesRecorded,
device->acm_hdr.pbDst + device->acm_offs, to_copy_bytes);
@ -1833,7 +1835,7 @@ static void WID_PullACMData(WINMM_Device *device)
device->first = queue = queue->lpNext;
}
if(device->acm_offs >= device->acm_hdr.cbDstLengthUsed){
if(device->acm_offs >= WINMM_FixedBufferLen(device->acm_hdr.cbDstLengthUsed, device)){
acmStreamUnprepareHeader(device->acm_handle, &device->acm_hdr, 0);
HeapFree(GetProcessHeap(), 0, device->acm_hdr.pbDst);
device->acm_hdr.cbDstLength = 0;
@ -1893,7 +1895,7 @@ static void WID_PullData(WINMM_Device *device)
UINT32 to_copy_bytes;
to_copy_bytes = min(packet * device->bytes_per_frame,
queue->dwBufferLength - queue->dwBytesRecorded);
WINMM_FixedBufferLen(queue->dwBufferLength, device) - queue->dwBytesRecorded);
memcpy(queue->lpData + queue->dwBytesRecorded,
data + (packet_len - packet) * device->bytes_per_frame,
@ -2832,6 +2834,8 @@ UINT WINAPI waveOutWrite(HWAVEOUT hWaveOut, WAVEHDR *header, UINT uSize)
return WAVERR_STILLPLAYING;
}
TRACE("dwBufferLength: %u\n", header->dwBufferLength);
if(device->acm_handle){
ACMSTREAMHEADER *ash = (ACMSTREAMHEADER*)header->reserved;