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mmioDescend: debugoutput enhanced, FINDLIST/FINDRIFF should Check the 

correct ckid (LIST/RIFF) too. (verified against mciavi32.dll)
This commit is contained in:
Marcus Meissner 1999-02-20 16:08:23 +00:00 committed by Alexandre Julliard
parent d6cab5049d
commit 9a73d86723
1 changed files with 33 additions and 25 deletions
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58
multimedia/mmio.c
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@ -930,18 +930,14 @@ LRESULT WINAPI mmioSendMessage(HMMIO16 hmmio, UINT16 uMessage,
UINT16 WINAPI mmioDescend(HMMIO16 hmmio, MMCKINFO * lpck,
const MMCKINFO * lpckParent, UINT16 uFlags)
{
DWORD dwfcc, dwOldPos;
LPDWORD tocheck;
DWORD dwOldPos;
MMCKINFO searchcki;
char ckid[5],fcc[5];
TRACE(mmio, "(%04X, %p, %p, %04X);\n",
hmmio, lpck, lpckParent, uFlags);
TRACE(mmio,"(%04X, %p, %p, %04X);\n",hmmio,lpck,lpckParent,uFlags);
if (lpck == NULL)
return 0;
dwfcc = lpck->ckid;
TRACE(mmio, "dwfcc=%08lX\n", dwfcc);
dwOldPos = mmioSeek32(hmmio, 0, SEEK_CUR);
TRACE(mmio, "dwOldPos=%ld\n", dwOldPos);
@ -954,26 +950,29 @@ UINT16 WINAPI mmioDescend(HMMIO16 hmmio, MMCKINFO * lpck,
* examples disagree -Marcus,990216.
*/
searchcki.fccType = 0;
/* find_chunk looks for 'ckid' */
if (uFlags & MMIO_FINDCHUNK) {
tocheck = &(lpck->ckid);
dwfcc = lpck->ckid;
}
if (uFlags & MMIO_FINDCHUNK)
searchcki.ckid = lpck->ckid;
/* find_riff and find_list look for 'fccType' */
if (uFlags & (MMIO_FINDLIST|MMIO_FINDRIFF)) {
dwfcc = lpck->fccType;
tocheck = &(lpck->fccType);
if (uFlags & MMIO_FINDLIST) {
searchcki.ckid = FOURCC_LIST;
searchcki.fccType = lpck->fccType;
}
if (uFlags & MMIO_FINDRIFF) {
searchcki.ckid = FOURCC_RIFF;
searchcki.fccType = lpck->fccType;
}
memcpy(&fcc,&(searchcki.fccType),4);fcc[4]=0;
memcpy(&ckid,&(searchcki.ckid),4);ckid[4]=0;
TRACE(mmio,"searching for %s.%s\n",ckid,searchcki.fccType?fcc:"<any>");
if (uFlags & (MMIO_FINDCHUNK|MMIO_FINDLIST|MMIO_FINDRIFF)) {
TRACE(mmio, "MMIO_FINDxxxx dwfcc=%08lX !\n", dwfcc);
while (TRUE) {
LONG ix;
char fcc[5],ckid[5];
ix = mmioRead32(hmmio, (LPSTR)lpck, 3 * sizeof(DWORD));
TRACE(mmio, "after _lread32 ix = %ld req = %d, errno = %d\n",ix,3 * sizeof(DWORD),errno);
if (ix < sizeof(DWORD)) {
if (ix < 2*sizeof(DWORD)) {
mmioSeek32(hmmio, dwOldPos, SEEK_SET);
WARN(mmio, "return ChunkNotFound\n");
return MMIOERR_CHUNKNOTFOUND;
@ -984,10 +983,17 @@ UINT16 WINAPI mmioDescend(HMMIO16 hmmio, MMCKINFO * lpck,
WARN(mmio, "return ChunkNotFound\n");
return MMIOERR_CHUNKNOTFOUND;
}
memcpy(fcc,&dwfcc,4);fcc[4]='\0';
memcpy(ckid,&lpck->ckid,4);ckid[4]='\0';
TRACE(mmio, "dwfcc=%s ckid=%s cksize=%08lX !\n", fcc, ckid, lpck->cksize);
if (dwfcc == *tocheck)
memcpy(ckid,&lpck->ckid,4);
memcpy(fcc,&lpck->fccType,4);
TRACE(mmio, "ckid=%s fcc=%s cksize=%08lX !\n",
ckid, searchcki.fccType?fcc:"<unused>",
lpck->cksize
);
if ((searchcki.ckid == lpck->ckid) &&
(!searchcki.fccType ||
(searchcki.fccType == lpck->fccType)
)
)
break;
dwOldPos = lpck->dwDataOffset + lpck->cksize;
@ -1011,8 +1017,10 @@ UINT16 WINAPI mmioDescend(HMMIO16 hmmio, MMCKINFO * lpck,
lpck->dwDataOffset += sizeof(DWORD);
}
mmioSeek32(hmmio, lpck->dwDataOffset, SEEK_SET);
TRACE(mmio, "lpck->ckid=%08lX lpck->cksize=%ld !\n", lpck->ckid, lpck->cksize);
TRACE(mmio, "lpck->fccType=%08lX !\n", lpck->fccType);
memcpy(ckid,&(lpck->ckid),4);
TRACE(mmio, "lpck->ckid=%s lpck->cksize=%ld !\n", ckid, lpck->cksize);
memcpy(fcc,&(lpck->fccType),4);
TRACE(mmio, "lpck->fccType=%08lX (%s)!\n", lpck->fccType,searchcki.fccType?fcc:"");
return 0;
}