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winmm: Perform stricter MIDI-related error checking.

This commit is contained in:
Jörg Höhle 2010-01-27 18:18:18 +01:00 committed by Alexandre Julliard
parent ed7a366202
commit 06d6dd3e72
1 changed files with 16 additions and 7 deletions
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19
dlls/winmm/winmm.c
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@ -130,6 +130,10 @@ const char* WINMM_ErrorToString(MMRESULT error)
ERR_TO_STR(WAVERR_STILLPLAYING);
ERR_TO_STR(WAVERR_UNPREPARED);
ERR_TO_STR(WAVERR_SYNC);
ERR_TO_STR(MIDIERR_INVALIDSETUP);
ERR_TO_STR(MIDIERR_NODEVICE);
ERR_TO_STR(MIDIERR_STILLPLAYING);
ERR_TO_STR(MIDIERR_UNPREPARED);
}
#undef ERR_TO_STR
return wine_dbg_sprintf("Unknown(0x%08x)", error);
@ -882,8 +886,6 @@ static LPWINE_MIDI MIDI_OutAlloc(HMIDIOUT* lphMidiOut, DWORD_PTR* lpdwCallback,
lpwm = (LPWINE_MIDI)MMDRV_Alloc(size, MMDRV_MIDIOUT, &hMidiOut, lpdwFlags,
lpdwCallback, lpdwInstance);
if (lphMidiOut != NULL)
*lphMidiOut = hMidiOut;
if (lpwm) {
@ -1777,7 +1779,6 @@ MMRESULT WINAPI midiStreamOpen(HMIDISTRM* lphMidiStrm, LPUINT lpuDeviceID,
return MMSYSERR_NOMEM;
}
lpMidiStrm->hDevice = hMidiOut;
if (lphMidiStrm)
*lphMidiStrm = (HMIDISTRM)hMidiOut;
lpwm->mld.uDeviceID = *lpuDeviceID;
@ -1820,11 +1821,19 @@ MMRESULT WINAPI midiStreamOut(HMIDISTRM hMidiStrm, LPMIDIHDR lpMidiHdr,
TRACE("(%p, %p, %u)!\n", hMidiStrm, lpMidiHdr, cbMidiHdr);
if (cbMidiHdr < sizeof(MIDIHDR) || !lpMidiHdr || !lpMidiHdr->lpData)
return MMSYSERR_INVALPARAM;
if (!(lpMidiHdr->dwFlags & MHDR_PREPARED))
return MIDIERR_UNPREPARED;
if (lpMidiHdr->dwFlags & MHDR_INQUEUE)
return MIDIERR_STILLPLAYING;
if (!MMSYSTEM_GetMidiStream(hMidiStrm, &lpMidiStrm, NULL)) {
ret = MMSYSERR_INVALHANDLE;
} else if (!lpMidiHdr) {
ret = MMSYSERR_INVALPARAM;
} else {
lpMidiHdr->dwFlags |= MHDR_ISSTRM;
if (!PostThreadMessageA(lpMidiStrm->dwThreadID,
WINE_MSM_HEADER, cbMidiHdr,
(LPARAM)lpMidiHdr)) {