/**************************************************************************
* mmioInstallIOProc [MMSYSTEM.1221]
*/
LPMMIOPROC16 WINAPI mmioInstallIOProc16(FOURCC fccIOProc, LPMMIOPROC16 pIOProc,
DWORD dwFlags)
{
struct mmio_thunk* thunk = NULL;
LPMMIOPROC pIOProc32;
EnterCriticalSection(&mmio_cs);
switch (dwFlags & (MMIO_INSTALLPROC|MMIO_REMOVEPROC|MMIO_FINDPROC)) {
case MMIO_INSTALLPROC:
if (!(thunk = MMIO_AddThunk(pIOProc, NULL)))
{
LeaveCriticalSection(&mmio_cs);
return NULL;
}
if (!mmioInstallIOProcA(fccIOProc, (LPMMIOPROC)thunk, dwFlags))
{
thunk->pfn16 = NULL;
pIOProc = NULL;
}
break;
case MMIO_REMOVEPROC:
if (MMIO_Thunks)
{
for (thunk = MMIO_Thunks; thunk < &MMIO_Thunks[MMIO_MAX_THUNKS]; thunk++)
{
if (thunk->pfn16 == pIOProc && thunk->segbuffer == 0)
{
if (mmioInstallIOProcA(fccIOProc, (LPMMIOPROC)thunk, dwFlags))
thunk->pfn16 = NULL;
else
pIOProc = NULL;
break;
}
}
}
if (!thunk) pIOProc = NULL;
break;
case MMIO_FINDPROC:
if ((pIOProc32 = mmioInstallIOProcA(fccIOProc, NULL, dwFlags)) && MMIO_Thunks)
{
for (thunk = MMIO_Thunks; thunk < &MMIO_Thunks[MMIO_MAX_THUNKS]; thunk++)
{
if ((LPMMIOPROC)thunk == pIOProc32)
{
pIOProc = thunk->pfn16;
break;
}
}
}
break;
default:
WINE_FIXME("Unsupported flags %08x\n", dwFlags);
pIOProc = NULL;
}
LeaveCriticalSection(&mmio_cs);
return pIOProc;
}
/**************************************************************************
* mmioOpen [MMSYSTEM.1210]
*/
HMMIO16 WINAPI mmioOpen16(LPSTR szFileName, MMIOINFO16* lpmmioinfo16,
DWORD dwOpenFlags)
{
HMMIO ret;
if (lpmmioinfo16) {
MMIOINFO mmioinfo;
struct mmio_thunk* thunk = NULL;
memset(&mmioinfo, 0, sizeof(mmioinfo));
EnterCriticalSection(&mmio_cs);
if (!(thunk = MMIO_AddThunk(lpmmioinfo16->pIOProc, lpmmioinfo16->pchBuffer)))
{
LeaveCriticalSection(&mmio_cs);
return 0;
}
mmioinfo.dwFlags = lpmmioinfo16->dwFlags;
mmioinfo.fccIOProc = lpmmioinfo16->fccIOProc;
mmioinfo.pIOProc = lpmmioinfo16->pIOProc ? (LPMMIOPROC)thunk : 0;
mmioinfo.cchBuffer = lpmmioinfo16->cchBuffer;
mmioinfo.pchBuffer = MapSL((DWORD)lpmmioinfo16->pchBuffer);
mmioinfo.adwInfo[0] = lpmmioinfo16->adwInfo[0];
/* if we don't have a file name, it's likely a passed open file descriptor */
if (!szFileName)
mmioinfo.adwInfo[0] = (DWORD)DosFileHandleToWin32Handle(mmioinfo.adwInfo[0]);
mmioinfo.adwInfo[1] = lpmmioinfo16->adwInfo[1];
mmioinfo.adwInfo[2] = lpmmioinfo16->adwInfo[2];
ret = mmioOpenA(szFileName, &mmioinfo, dwOpenFlags);
if (!ret || (dwOpenFlags & (MMIO_PARSE|MMIO_EXIST)))
{
thunk->pfn16 = NULL;
thunk->hMmio = NULL;
}
else thunk->hMmio = ret;
if (ret && (dwOpenFlags & MMIO_ALLOCBUF))
{
MMIOINFO m;
if (lpmmioinfo16->pchBuffer) FIXME("ooch\n");
/* FIXME: check whether mmioOpen should set pchBuffer */
mmioGetInfo(ret, &m, 0);
thunk->segbuffer = MapLS(m.pchBuffer);
}
LeaveCriticalSection(&mmio_cs);
lpmmioinfo16->wErrorRet = mmioinfo.wErrorRet;
lpmmioinfo16->hmmio = HMMIO_16(mmioinfo.hmmio);
} else {
ret = mmioOpenA(szFileName, NULL, dwOpenFlags);
}
return HMMIO_16(ret);
}
