Sweden-Number/dlls/winmm/mciavi/mmoutput.c

574 lines
19 KiB
C

/* -*- tab-width: 8; c-basic-offset: 4 -*- */
/*
* Digital video MCI Wine Driver
*
* Copyright 1999, 2000 Eric POUECH
*/
#include "private_mciavi.h"
#include "debugtools.h"
DEFAULT_DEBUG_CHANNEL(mciavi);
static BOOL MCIAVI_GetInfoAudio(WINE_MCIAVI* wma, const MMCKINFO* mmckList)
{
MMCKINFO mmckInfo;
mmckInfo.ckid = ckidSTREAMHEADER;
if (mmioDescend(wma->hFile, &mmckInfo, mmckList, MMIO_FINDCHUNK) != 0) {
WARN("Can't find 'strh' chunk\n");
return FALSE;
}
mmioRead(wma->hFile, (LPSTR)&wma->ash_audio, sizeof(wma->ash_audio));
TRACE("ash.fccType='%c%c%c%c'\n", LOBYTE(LOWORD(wma->ash_audio.fccType)),
HIBYTE(LOWORD(wma->ash_audio.fccType)),
LOBYTE(HIWORD(wma->ash_audio.fccType)),
HIBYTE(HIWORD(wma->ash_audio.fccType)));
TRACE("ash.fccHandler='%c%c%c%c'\n", LOBYTE(LOWORD(wma->ash_audio.fccHandler)),
HIBYTE(LOWORD(wma->ash_audio.fccHandler)),
LOBYTE(HIWORD(wma->ash_audio.fccHandler)),
HIBYTE(HIWORD(wma->ash_audio.fccHandler)));
TRACE("ash.dwFlags=%ld\n", wma->ash_audio.dwFlags);
TRACE("ash.wPriority=%d\n", wma->ash_audio.wPriority);
TRACE("ash.wLanguage=%d\n", wma->ash_audio.wLanguage);
TRACE("ash.dwInitialFrames=%ld\n", wma->ash_audio.dwInitialFrames);
TRACE("ash.dwScale=%ld\n", wma->ash_audio.dwScale);
TRACE("ash.dwRate=%ld\n", wma->ash_audio.dwRate);
TRACE("ash.dwStart=%ld\n", wma->ash_audio.dwStart);
TRACE("ash.dwLength=%ld\n", wma->ash_audio.dwLength);
TRACE("ash.dwSuggestedBufferSize=%ld\n", wma->ash_audio.dwSuggestedBufferSize);
TRACE("ash.dwQuality=%ld\n", wma->ash_audio.dwQuality);
TRACE("ash.dwSampleSize=%ld\n", wma->ash_audio.dwSampleSize);
TRACE("ash.rcFrame=(%d,%d,%d,%d)\n", wma->ash_audio.rcFrame.top, wma->ash_audio.rcFrame.left,
wma->ash_audio.rcFrame.bottom, wma->ash_audio.rcFrame.right);
mmioAscend(wma->hFile, &mmckInfo, 0);
mmckInfo.ckid = ckidSTREAMFORMAT;
if (mmioDescend(wma->hFile, &mmckInfo, mmckList, MMIO_FINDCHUNK) != 0) {
WARN("Can't find 'strh' chunk\n");
return FALSE;
}
if (mmckInfo.cksize < sizeof(WAVEFORMAT)) {
WARN("Size of strf chunk (%ld) < audio format struct\n", mmckInfo.cksize);
return FALSE;
}
wma->lpWaveFormat = HeapAlloc(GetProcessHeap(), 0, mmckInfo.cksize);
if (!wma->lpWaveFormat) {
WARN("Can't alloc WaveFormat\n");
return FALSE;
}
mmioRead(wma->hFile, (LPSTR)wma->lpWaveFormat, mmckInfo.cksize);
TRACE("waveFormat.wFormatTag=%d\n", wma->lpWaveFormat->wFormatTag);
TRACE("waveFormat.nChannels=%d\n", wma->lpWaveFormat->nChannels);
TRACE("waveFormat.nSamplesPerSec=%ld\n", wma->lpWaveFormat->nSamplesPerSec);
TRACE("waveFormat.nAvgBytesPerSec=%ld\n", wma->lpWaveFormat->nAvgBytesPerSec);
TRACE("waveFormat.nBlockAlign=%d\n", wma->lpWaveFormat->nBlockAlign);
TRACE("waveFormat.wBitsPerSample=%d\n", wma->lpWaveFormat->wBitsPerSample);
if (mmckInfo.cksize >= sizeof(WAVEFORMATEX))
TRACE("waveFormat.cbSize=%d\n", wma->lpWaveFormat->cbSize);
mmioAscend(wma->hFile, &mmckInfo, 0);
return TRUE;
}
static BOOL MCIAVI_GetInfoVideo(WINE_MCIAVI* wma, const MMCKINFO* mmckList)
{
MMCKINFO mmckInfo;
mmckInfo.ckid = ckidSTREAMHEADER;
if (mmioDescend(wma->hFile, &mmckInfo, mmckList, MMIO_FINDCHUNK) != 0) {
WARN("Can't find 'strh' chunk\n");
return FALSE;
}
mmioRead(wma->hFile, (LPSTR)&wma->ash_video, sizeof(wma->ash_video));
TRACE("ash.fccType='%c%c%c%c'\n", LOBYTE(LOWORD(wma->ash_video.fccType)),
HIBYTE(LOWORD(wma->ash_video.fccType)),
LOBYTE(HIWORD(wma->ash_video.fccType)),
HIBYTE(HIWORD(wma->ash_video.fccType)));
TRACE("ash.fccHandler='%c%c%c%c'\n", LOBYTE(LOWORD(wma->ash_video.fccHandler)),
HIBYTE(LOWORD(wma->ash_video.fccHandler)),
LOBYTE(HIWORD(wma->ash_video.fccHandler)),
HIBYTE(HIWORD(wma->ash_video.fccHandler)));
TRACE("ash.dwFlags=%ld\n", wma->ash_video.dwFlags);
TRACE("ash.wPriority=%d\n", wma->ash_video.wPriority);
TRACE("ash.wLanguage=%d\n", wma->ash_video.wLanguage);
TRACE("ash.dwInitialFrames=%ld\n", wma->ash_video.dwInitialFrames);
TRACE("ash.dwScale=%ld\n", wma->ash_video.dwScale);
TRACE("ash.dwRate=%ld\n", wma->ash_video.dwRate);
TRACE("ash.dwStart=%ld\n", wma->ash_video.dwStart);
TRACE("ash.dwLength=%ld\n", wma->ash_video.dwLength);
TRACE("ash.dwSuggestedBufferSize=%ld\n", wma->ash_video.dwSuggestedBufferSize);
TRACE("ash.dwQuality=%ld\n", wma->ash_video.dwQuality);
TRACE("ash.dwSampleSize=%ld\n", wma->ash_video.dwSampleSize);
TRACE("ash.rcFrame=(%d,%d,%d,%d)\n", wma->ash_video.rcFrame.top, wma->ash_video.rcFrame.left,
wma->ash_video.rcFrame.bottom, wma->ash_video.rcFrame.right);
mmioAscend(wma->hFile, &mmckInfo, 0);
mmckInfo.ckid = ckidSTREAMFORMAT;
if (mmioDescend(wma->hFile, &mmckInfo, mmckList, MMIO_FINDCHUNK) != 0) {
WARN("Can't find 'strh' chunk\n");
return FALSE;
}
wma->inbih = HeapAlloc(GetProcessHeap(), 0, mmckInfo.cksize);
if (!wma->inbih) {
WARN("Can't alloc input BIH\n");
return FALSE;
}
mmioRead(wma->hFile, (LPSTR)wma->inbih, mmckInfo.cksize);
TRACE("bih.biSize=%ld\n", wma->inbih->biSize);
TRACE("bih.biWidth=%ld\n", wma->inbih->biWidth);
TRACE("bih.biHeight=%ld\n", wma->inbih->biHeight);
TRACE("bih.biPlanes=%d\n", wma->inbih->biPlanes);
TRACE("bih.biBitCount=%d\n", wma->inbih->biBitCount);
TRACE("bih.biCompression=%lx\n", wma->inbih->biCompression);
TRACE("bih.biSizeImage=%ld\n", wma->inbih->biSizeImage);
TRACE("bih.biXPelsPerMeter=%ld\n", wma->inbih->biXPelsPerMeter);
TRACE("bih.biYPelsPerMeter=%ld\n", wma->inbih->biYPelsPerMeter);
TRACE("bih.biClrUsed=%ld\n", wma->inbih->biClrUsed);
TRACE("bih.biClrImportant=%ld\n", wma->inbih->biClrImportant);
mmioAscend(wma->hFile, &mmckInfo, 0);
return TRUE;
}
struct AviListBuild {
DWORD numVideoFrames;
DWORD numAudioAllocated;
DWORD numAudioBlocks;
DWORD inVideoSize;
DWORD inAudioSize;
};
static BOOL MCIAVI_AddFrame(WINE_MCIAVI* wma, LPMMCKINFO mmck,
struct AviListBuild* alb)
{
if (mmck->ckid == ckidAVIPADDING) return TRUE;
switch (TWOCCFromFOURCC(mmck->ckid)) {
case cktypeDIBbits:
case cktypeDIBcompressed:
case cktypePALchange:
TRACE("Adding video frame[%ld]: %ld bytes\n",
alb->numVideoFrames, mmck->cksize);
if (alb->numVideoFrames < wma->dwPlayableVideoFrames) {
wma->lpVideoIndex[alb->numVideoFrames].dwOffset = mmck->dwDataOffset;
wma->lpVideoIndex[alb->numVideoFrames].dwSize = mmck->cksize;
if (alb->inVideoSize < mmck->cksize)
alb->inVideoSize = mmck->cksize;
alb->numVideoFrames++;
} else {
WARN("Too many video frames\n");
}
break;
case cktypeWAVEbytes:
TRACE("Adding audio frame[%ld]: %ld bytes\n",
alb->numAudioBlocks, mmck->cksize);
if (wma->lpWaveFormat) {
if (alb->numAudioBlocks >= alb->numAudioAllocated) {
alb->numAudioAllocated += 32;
wma->lpAudioIndex = HeapReAlloc(GetProcessHeap(), 0,
wma->lpAudioIndex,
alb->numAudioAllocated * sizeof(struct MMIOPos));
if (!wma->lpAudioIndex) return FALSE;
}
wma->lpAudioIndex[alb->numAudioBlocks].dwOffset = mmck->dwDataOffset;
wma->lpAudioIndex[alb->numAudioBlocks].dwSize = mmck->cksize;
if (alb->inAudioSize < mmck->cksize)
alb->inAudioSize = mmck->cksize;
alb->numAudioBlocks++;
} else {
WARN("Wave chunk without wave format... discarding\n");
}
break;
default:
WARN("Unknown frame type %04x\n", TWOCCFromFOURCC(mmck->ckid));
break;
}
return TRUE;
}
BOOL MCIAVI_GetInfo(WINE_MCIAVI* wma)
{
MMCKINFO ckMainRIFF;
MMCKINFO mmckHead;
MMCKINFO mmckList;
MMCKINFO mmckInfo;
struct AviListBuild alb;
if (mmioDescend(wma->hFile, &ckMainRIFF, NULL, 0) != 0) {
WARN("Can't find 'RIFF' chunk\n");
return FALSE;
}
if ((ckMainRIFF.ckid != FOURCC_RIFF) || (ckMainRIFF.fccType != formtypeAVI)) {
WARN("Can't find 'AVI ' chunk\n");
return FALSE;
}
mmckHead.fccType = listtypeAVIHEADER;
if (mmioDescend(wma->hFile, &mmckHead, &ckMainRIFF, MMIO_FINDLIST) != 0) {
WARN("Can't find 'hdrl' list\n");
return FALSE;
}
mmckInfo.ckid = ckidAVIMAINHDR;
if (mmioDescend(wma->hFile, &mmckInfo, &mmckHead, MMIO_FINDCHUNK) != 0) {
WARN("Can't find 'avih' chunk\n");
return FALSE;
}
mmioRead(wma->hFile, (LPSTR)&wma->mah, sizeof(wma->mah));
TRACE("mah.dwMicroSecPerFrame=%ld\n", wma->mah.dwMicroSecPerFrame);
TRACE("mah.dwMaxBytesPerSec=%ld\n", wma->mah.dwMaxBytesPerSec);
TRACE("mah.dwPaddingGranularity=%ld\n", wma->mah.dwPaddingGranularity);
TRACE("mah.dwFlags=%ld\n", wma->mah.dwFlags);
TRACE("mah.dwTotalFrames=%ld\n", wma->mah.dwTotalFrames);
TRACE("mah.dwInitialFrames=%ld\n", wma->mah.dwInitialFrames);
TRACE("mah.dwStreams=%ld\n", wma->mah.dwStreams);
TRACE("mah.dwSuggestedBufferSize=%ld\n", wma->mah.dwSuggestedBufferSize);
TRACE("mah.dwWidth=%ld\n", wma->mah.dwWidth);
TRACE("mah.dwHeight=%ld\n", wma->mah.dwHeight);
mmioAscend(wma->hFile, &mmckInfo, 0);
mmckList.fccType = listtypeSTREAMHEADER;
if (mmioDescend(wma->hFile, &mmckList, &mmckHead, MMIO_FINDLIST) != 0) {
WARN("Can't find 'strl' list\n");
return FALSE;
}
if (!MCIAVI_GetInfoVideo(wma, &mmckList)) {
return FALSE;
}
mmioAscend(wma->hFile, &mmckList, 0);
mmckList.fccType = listtypeSTREAMHEADER;
if (mmioDescend(wma->hFile, &mmckList, &mmckHead, MMIO_FINDLIST) == 0) {
if (!MCIAVI_GetInfoAudio(wma, &mmckList)) {
return FALSE;
}
mmioAscend(wma->hFile, &mmckList, 0);
}
mmioAscend(wma->hFile, &mmckHead, 0);
/* no need to read optional JUNK chunk */
mmckList.fccType = listtypeAVIMOVIE;
if (mmioDescend(wma->hFile, &mmckList, &ckMainRIFF, MMIO_FINDLIST) != 0) {
WARN("Can't find 'movi' list\n");
return FALSE;
}
wma->dwPlayableVideoFrames = wma->mah.dwTotalFrames;
wma->lpVideoIndex = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY,
wma->dwPlayableVideoFrames * sizeof(struct MMIOPos));
if (!wma->lpVideoIndex) {
WARN("Can't alloc video index array\n");
return FALSE;
}
wma->dwPlayableAudioBlocks = 0;
wma->lpAudioIndex = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY,
wma->dwPlayableVideoFrames * sizeof(struct MMIOPos));
if (!wma->lpAudioIndex) {
WARN("Can't alloc audio index array\n");
return FALSE;
}
alb.numAudioBlocks = alb.numVideoFrames = 0;
alb.inVideoSize = alb.inAudioSize = 0;
alb.numAudioAllocated = 0;
while (mmioDescend(wma->hFile, &mmckInfo, &mmckList, 0) == 0) {
if (mmckInfo.fccType == listtypeAVIRECORD) {
MMCKINFO tmp;
while (mmioDescend(wma->hFile, &tmp, &mmckInfo, 0) == 0) {
MCIAVI_AddFrame(wma, &tmp, &alb);
mmioAscend(wma->hFile, &tmp, 0);
}
} else {
MCIAVI_AddFrame(wma, &mmckInfo, &alb);
}
mmioAscend(wma->hFile, &mmckInfo, 0);
}
if (alb.numVideoFrames != wma->dwPlayableVideoFrames) {
WARN("Found %ld video frames (/%ld), reducing playable frames\n",
alb.numVideoFrames, wma->dwPlayableVideoFrames);
wma->dwPlayableVideoFrames = alb.numVideoFrames;
}
wma->dwPlayableAudioBlocks = alb.numAudioBlocks;
if (alb.inVideoSize > wma->ash_video.dwSuggestedBufferSize) {
WARN("inVideoSize=%ld suggestedSize=%ld\n", alb.inVideoSize, wma->ash_video.dwSuggestedBufferSize);
wma->ash_video.dwSuggestedBufferSize = alb.inVideoSize;
}
if (alb.inAudioSize > wma->ash_audio.dwSuggestedBufferSize) {
WARN("inAudioSize=%ld suggestedSize=%ld\n", alb.inAudioSize, wma->ash_audio.dwSuggestedBufferSize);
wma->ash_audio.dwSuggestedBufferSize = alb.inAudioSize;
}
wma->indata = HeapAlloc(GetProcessHeap(), 0, wma->ash_video.dwSuggestedBufferSize);
if (!wma->indata) {
WARN("Can't alloc input buffer\n");
return FALSE;
}
return TRUE;
}
BOOL MCIAVI_OpenVideo(WINE_MCIAVI* wma)
{
DWORD outSize;
FOURCC fcc = wma->ash_video.fccHandler;
/* check uncompressed AVI */
if ((fcc == mmioFOURCC('D','I','B',' ')) ||
(fcc == mmioFOURCC('R','L','E',' '))) {
wma->hic = 0;
MCIAVI_DrawFrame(wma);
return TRUE;
}
/* get the right handle */
if (fcc == 0) fcc = wma->inbih->biCompression;
if (fcc == mmioFOURCC('C','R','A','M')) fcc = mmioFOURCC('M','S','V','C');
/* try to get a decompressor for that type */
wma->hic = ICLocate(ICTYPE_VIDEO, fcc, wma->inbih, NULL, ICMODE_DECOMPRESS);
if (!wma->hic) {
WARN("Can't locate codec for the file\n");
return FALSE;
}
outSize = sizeof(BITMAPINFOHEADER) + 256 * sizeof(RGBQUAD);
wma->outbih = HeapAlloc(GetProcessHeap(), 0, outSize);
if (!wma->outbih) {
WARN("Can't alloc output BIH\n");
return FALSE;
}
if (!ICGetDisplayFormat(wma->hic, wma->inbih, wma->outbih, 0, 0, 0)) {
WARN("Can't open decompressor\n");
return FALSE;
}
TRACE("bih.biSize=%ld\n", wma->outbih->biSize);
TRACE("bih.biWidth=%ld\n", wma->outbih->biWidth);
TRACE("bih.biHeight=%ld\n", wma->outbih->biHeight);
TRACE("bih.biPlanes=%d\n", wma->outbih->biPlanes);
TRACE("bih.biBitCount=%d\n", wma->outbih->biBitCount);
TRACE("bih.biCompression=%lx\n", wma->outbih->biCompression);
TRACE("bih.biSizeImage=%ld\n", wma->outbih->biSizeImage);
TRACE("bih.biXPelsPerMeter=%ld\n", wma->outbih->biXPelsPerMeter);
TRACE("bih.biYPelsPerMeter=%ld\n", wma->outbih->biYPelsPerMeter);
TRACE("bih.biClrUsed=%ld\n", wma->outbih->biClrUsed);
TRACE("bih.biClrImportant=%ld\n", wma->outbih->biClrImportant);
wma->outdata = HeapAlloc(GetProcessHeap(), 0, wma->outbih->biSizeImage);
if (!wma->outdata) {
WARN("Can't alloc output buffer\n");
return FALSE;
}
if (ICSendMessage(wma->hic, ICM_DECOMPRESS_BEGIN,
(DWORD)wma->inbih, (DWORD)wma->outbih) != ICERR_OK) {
WARN("Can't begin decompression\n");
return FALSE;
}
MCIAVI_DrawFrame(wma);
return TRUE;
}
static void CALLBACK MCIAVI_waveCallback(HWAVEOUT hwo, UINT uMsg, DWORD dwInstance,
DWORD dwParam1, DWORD dwParam2)
{
WINE_MCIAVI* wma = (WINE_MCIAVI*)dwInstance;
switch (uMsg) {
case WOM_OPEN:
case WOM_CLOSE:
break;
case WOM_DONE:
InterlockedIncrement(&wma->dwEventCount);
TRACE("Returning waveHdr=%lx\n", dwParam1);
SetEvent(wma->hEvent);
break;
default:
ERR("Unknown uMsg=%d\n", uMsg);
}
}
DWORD MCIAVI_OpenAudio(WINE_MCIAVI* wma, unsigned* nHdr, LPWAVEHDR* pWaveHdr)
{
DWORD dwRet;
LPWAVEHDR waveHdr;
unsigned i;
dwRet = waveOutOpen(&wma->hWave, WAVE_MAPPER, wma->lpWaveFormat,
(DWORD)MCIAVI_waveCallback, (DWORD)wma, CALLBACK_FUNCTION);
if (dwRet != 0) {
TRACE("Can't open low level audio device %ld\n", dwRet);
dwRet = MCIERR_DEVICE_OPEN;
wma->hWave = 0;
goto cleanUp;
}
/* FIXME: should set up a heuristic to compute the number of wave headers
* to be used...
*/
*nHdr = 7;
waveHdr = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY,
*nHdr * (sizeof(WAVEHDR) + wma->ash_audio.dwSuggestedBufferSize));
if (!waveHdr) {
TRACE("Can't alloc wave headers\n");
dwRet = MCIERR_DEVICE_OPEN;
goto cleanUp;
}
for (i = 0; i < *nHdr; i++) {
/* other fields are zero:ed on allocation */
waveHdr[i].lpData = (char*)waveHdr +
*nHdr * sizeof(WAVEHDR) + i * wma->ash_audio.dwSuggestedBufferSize;
waveHdr[i].dwBufferLength = wma->ash_audio.dwSuggestedBufferSize;
if (waveOutPrepareHeader(wma->hWave, &waveHdr[i], sizeof(WAVEHDR))) {
dwRet = MCIERR_INTERNAL;
goto cleanUp;
}
}
if (wma->dwCurrVideoFrame != 0 && wma->lpWaveFormat) {
FIXME("Should recompute dwCurrAudioBlock, except unsynchronized sound & video");
}
wma->dwCurrAudioBlock = 0;
wma->hEvent = CreateEventA(NULL, FALSE, FALSE, NULL);
wma->dwEventCount = *nHdr - 1;
*pWaveHdr = waveHdr;
cleanUp:
return dwRet;
}
void MCIAVI_PlayAudioBlocks(WINE_MCIAVI* wma, unsigned nHdr, LPWAVEHDR waveHdr)
{
TRACE("%ld (ec=%lu)\n", wma->lpAudioIndex[wma->dwCurrAudioBlock].dwOffset, wma->dwEventCount);
/* push as many blocks as possible => audio gets priority */
while (wma->dwStatus != MCI_MODE_STOP && wma->dwStatus != MCI_MODE_NOT_READY &&
wma->dwCurrAudioBlock < wma->dwPlayableAudioBlocks) {
unsigned whidx = wma->dwCurrAudioBlock % nHdr;
ResetEvent(wma->hEvent);
if (InterlockedDecrement(&wma->dwEventCount) < 0 ||
!wma->lpAudioIndex[wma->dwCurrAudioBlock].dwOffset)
break;
mmioSeek(wma->hFile, wma->lpAudioIndex[wma->dwCurrAudioBlock].dwOffset, SEEK_SET);
mmioRead(wma->hFile, waveHdr[whidx].lpData, wma->lpAudioIndex[wma->dwCurrAudioBlock].dwSize);
waveHdr[whidx].dwFlags &= ~WHDR_DONE;
waveHdr[whidx].dwBufferLength = wma->lpAudioIndex[wma->dwCurrAudioBlock].dwSize;
waveOutWrite(wma->hWave, &waveHdr[whidx], sizeof(WAVEHDR));
wma->dwCurrAudioBlock++;
}
InterlockedIncrement(&wma->dwEventCount);
}
LRESULT MCIAVI_PaintFrame(WINE_MCIAVI* wma, HDC hDC)
{
void* pBitmapData = NULL;
LPBITMAPINFO pBitmapInfo = NULL;
HDC hdcMem;
HBITMAP hbmOld;
int nWidth;
int nHeight;
if (!hDC || !wma->inbih)
return TRUE;
TRACE("Painting frame %lu\n", wma->dwCurrVideoFrame);
if (wma->hic) {
pBitmapData = wma->outdata;
pBitmapInfo = (LPBITMAPINFO)wma->outbih;
nWidth = wma->outbih->biWidth;
nHeight = wma->outbih->biHeight;
} else {
pBitmapData = wma->indata;
pBitmapInfo = (LPBITMAPINFO)wma->inbih;
nWidth = wma->inbih->biWidth;
nHeight = wma->inbih->biHeight;
}
if (!wma->hbmFrame)
wma->hbmFrame = CreateCompatibleBitmap(hDC, nWidth, nHeight);
SetDIBits(hDC, wma->hbmFrame, 0, nHeight, pBitmapData, pBitmapInfo, DIB_RGB_COLORS);
hdcMem = CreateCompatibleDC(hDC);
hbmOld = SelectObject(hdcMem, wma->hbmFrame);
BitBlt(hDC, 0, 0, nWidth, nHeight, hdcMem, 0, 0, SRCCOPY);
SelectObject(hdcMem, hbmOld);
DeleteDC(hdcMem);
return TRUE;
}
LRESULT MCIAVI_DrawFrame(WINE_MCIAVI* wma)
{
HDC hDC;
TRACE("Drawing frame %lu\n", wma->dwCurrVideoFrame);
if (!wma->lpVideoIndex[wma->dwCurrVideoFrame].dwOffset)
return FALSE;
EnterCriticalSection(&wma->cs);
mmioSeek(wma->hFile, wma->lpVideoIndex[wma->dwCurrVideoFrame].dwOffset, SEEK_SET);
mmioRead(wma->hFile, wma->indata, wma->lpVideoIndex[wma->dwCurrVideoFrame].dwSize);
/* FIXME ? */
wma->inbih->biSizeImage = wma->lpVideoIndex[wma->dwCurrVideoFrame].dwSize;
if (wma->hic &&
ICDecompress(wma->hic, 0, wma->inbih, wma->indata,
wma->outbih, wma->outdata) != ICERR_OK) {
LeaveCriticalSection(&wma->cs);
WARN("Decompression error\n");
return FALSE;
}
if (IsWindowVisible(wma->hWnd) && (hDC = GetDC(wma->hWnd)) != 0) {
MCIAVI_PaintFrame(wma, hDC);
ReleaseDC(wma->hWnd, hDC);
}
LeaveCriticalSection(&wma->cs);
return TRUE;
}