Beispiel #1
0
/**************************************************************************
 * 				mmioClose      		[WINMM.@]
 */
MMRESULT WINAPI mmioClose(HMMIO hmmio, UINT uFlags)
{
    LPWINE_MMIO	wm;
    MMRESULT 	result;

    TRACE("(%p, %04X);\n", hmmio, uFlags);

    if ((wm = MMIO_Get(hmmio)) == NULL)
	return MMSYSERR_INVALHANDLE;

    if ((result = MMIO_Flush(wm, 0)) != MMSYSERR_NOERROR)
	return result;

    result = send_message(wm->ioProc, &wm->info, MMIOM_CLOSE, uFlags, 0, FALSE);

    MMIO_SetBuffer(wm, NULL, 0, 0);

    wm->ioProc->count--;

    if (wm->bTmpIOProc)
	MMIO_InstallIOProc(wm->info.fccIOProc, wm->ioProc->pIOProc,
                           MMIO_REMOVEPROC, wm->ioProc->is_unicode);

    MMIO_Destroy(wm);

    return result;
}
Beispiel #2
0
/**************************************************************************
 * 				mmioFlush      		[WINMM.@]
 */
MMRESULT WINAPI mmioFlush(HMMIO hmmio, UINT uFlags)
{
    LPWINE_MMIO		wm;

    TRACE("(%p, %04X)\n", hmmio, uFlags);

    if ((wm = MMIO_Get(hmmio)) == NULL)
	return MMSYSERR_INVALHANDLE;

    return MMIO_Flush(wm, uFlags);
}
Beispiel #3
0
/**************************************************************************
 * 				mmioSeek		[WINMM.@]
 */
LONG WINAPI mmioSeek(HMMIO hmmio, LONG lOffset, INT iOrigin)
{
    LPWINE_MMIO	wm;
    LONG 	offset;

    TRACE("(%p, %08X, %d);\n", hmmio, lOffset, iOrigin);

    if ((wm = MMIO_Get(hmmio)) == NULL)
	return MMSYSERR_INVALHANDLE;

    /* not buffered, direct seek on file */
    if (!wm->info.pchBuffer)
	return send_message(wm->ioProc, &wm->info, MMIOM_SEEK, lOffset, iOrigin, FALSE);

    switch (iOrigin) {
    case SEEK_SET:
	offset = lOffset;
	break;
    case SEEK_CUR:
	offset = wm->info.lBufOffset + (wm->info.pchNext - wm->info.pchBuffer) + lOffset;
	break;
    case SEEK_END:
	offset = ((wm->info.fccIOProc == FOURCC_MEM)? wm->info.cchBuffer : wm->dwFileSize) - lOffset;
	break;
    default:
	return -1;
    }

    /* stay in same buffer ? */
    /* some memory mapped buffers are defined with -1 as a size */
    if ((wm->info.cchBuffer > 0) &&
	((offset < wm->info.lBufOffset) ||
	 (offset >= wm->info.lBufOffset + wm->info.cchBuffer) ||
	 (offset > wm->dwFileSize && wm->info.fccIOProc != FOURCC_MEM) ||
	 !wm->bBufferLoaded)) {

	/* condition to change buffer */
	if ((wm->info.fccIOProc == FOURCC_MEM) ||
	    MMIO_Flush(wm, 0) != MMSYSERR_NOERROR ||
	    /* this also sets the wm->info.lDiskOffset field */
	    send_message(wm->ioProc, &wm->info, MMIOM_SEEK,
                         offset, SEEK_SET, FALSE) == -1)
	    return -1;
	wm->info.lBufOffset = offset;
	wm->bBufferLoaded = FALSE;
	wm->info.pchNext = wm->info.pchEndRead = wm->info.pchBuffer;
    }
    else
	wm->info.pchNext = wm->info.pchBuffer + (offset - wm->info.lBufOffset);

    TRACE("=> %d\n", offset);
    return offset;
}
Beispiel #4
0
/**************************************************************************
 * 				mmioWrite      		[WINMM.@]
 */
LONG WINAPI mmioWrite(HMMIO hmmio, HPCSTR pch, LONG cch)
{
    LPWINE_MMIO	wm;
    LONG	count;

    TRACE("(%p, %p, %d);\n", hmmio, pch, cch);

    if ((wm = MMIO_Get(hmmio)) == NULL)
	return -1;

    if (wm->info.cchBuffer) {
	LONG	bytesW = 0;

        count = 0;
        while (cch) {
            if (wm->info.pchNext != wm->info.pchEndWrite) {
                count = wm->info.pchEndWrite - wm->info.pchNext;
                if (count > cch || count < 0) count = cch;
                memcpy(wm->info.pchNext, pch, count);
                wm->info.pchNext += count;
                pch += count;
                cch -= count;
                bytesW += count;
                wm->info.dwFlags |= MMIO_DIRTY;
	    } else {
                if (wm->info.fccIOProc == FOURCC_MEM) {
                    if (wm->info.adwInfo[0]) {
                        /* from where would we get the memory handle? */
                        FIXME("memory file expansion not implemented!\n");
                        break;
		    } else break;
                }
            }

            if (wm->info.pchNext == wm->info.pchEndWrite)
            {
                MMIO_Flush(wm, MMIO_EMPTYBUF);
                MMIO_GrabNextBuffer(wm, FALSE);
            }
            else break;
        }
	count = bytesW;
    } else {
	count = send_message(wm->ioProc, &wm->info, MMIOM_WRITE, 
                             (LPARAM)pch, cch, MMIO_PROC_32A);
	wm->info.lBufOffset = wm->info.lDiskOffset;
    }

    TRACE("bytes written=%d\n", count);
    return count;
}
Beispiel #5
0
/**************************************************************************
 * 				mmioAdvance      	[WINMM.@]
 */
MMRESULT WINAPI mmioAdvance(HMMIO hmmio, MMIOINFO* lpmmioinfo, UINT uFlags)
{
    LPWINE_MMIO		wm;

    TRACE("hmmio=%p, lpmmioinfo=%p, uFlags=%04X\n", hmmio, lpmmioinfo, uFlags);

    /* NOTE: mmioAdvance16 heavily relies on parameters from lpmmioinfo we're using
     * here. be sure if you change something here to check mmioAdvance16 as well
     */
    if ((wm = MMIO_Get(hmmio)) == NULL)
	return MMSYSERR_INVALHANDLE;

    if (!wm->info.cchBuffer)
	return MMIOERR_UNBUFFERED;

    if (uFlags != MMIO_READ && uFlags != MMIO_WRITE)
	return MMSYSERR_INVALPARAM;

    if (uFlags == MMIO_WRITE && (lpmmioinfo->dwFlags & MMIO_DIRTY))
    {
        send_message(wm->ioProc, &wm->info, MMIOM_SEEK, 
                     lpmmioinfo->lBufOffset, SEEK_SET, MMIO_PROC_32A);
        send_message(wm->ioProc, &wm->info, MMIOM_WRITE, 
                     (LPARAM)lpmmioinfo->pchBuffer,
                     lpmmioinfo->pchNext - lpmmioinfo->pchBuffer, MMIO_PROC_32A);
        lpmmioinfo->dwFlags &= ~MMIO_DIRTY;
    }
    if (MMIO_Flush(wm, 0) != MMSYSERR_NOERROR)
	return MMIOERR_CANNOTWRITE;

    if (lpmmioinfo) {
	wm->dwFileSize = max(wm->dwFileSize, lpmmioinfo->lBufOffset + 
                             (lpmmioinfo->pchNext - lpmmioinfo->pchBuffer));
    }
    MMIO_GrabNextBuffer(wm, uFlags == MMIO_READ);

    if (lpmmioinfo) {
	lpmmioinfo->pchNext = lpmmioinfo->pchBuffer;
	lpmmioinfo->pchEndRead  = lpmmioinfo->pchBuffer +
	    (wm->info.pchEndRead - wm->info.pchBuffer);
	lpmmioinfo->pchEndWrite = lpmmioinfo->pchBuffer +
	    (wm->info.pchEndWrite - wm->info.pchBuffer);
	lpmmioinfo->lDiskOffset = wm->info.lDiskOffset;
	lpmmioinfo->lBufOffset = wm->info.lBufOffset;
    }
    return MMSYSERR_NOERROR;
}
Beispiel #6
0
/***************************************************************************
 *       		MMIO_SetBuffer 				[INTERNAL]
 */
static MMRESULT MMIO_SetBuffer(WINE_MMIO* wm, void* pchBuffer, LONG cchBuffer,
			       UINT uFlags)
{
    TRACE("(%p %p %d %u)\n", wm, pchBuffer, cchBuffer, uFlags);

    if (cchBuffer > 0xFFFF)
	WARN("Untested handling of huge mmio buffers (%d >= 64k)\n", cchBuffer);

    if (MMIO_Flush(wm, 0) != MMSYSERR_NOERROR)
	return MMIOERR_CANNOTWRITE;

    /* free previous buffer if allocated */
    if (wm->info.dwFlags & MMIO_ALLOCBUF) {
        HeapFree(GetProcessHeap(), 0, wm->info.pchBuffer);
        wm->info.pchBuffer = NULL;
	wm->info.dwFlags &= ~MMIO_ALLOCBUF;
    }

    if (pchBuffer) {
        wm->info.pchBuffer = pchBuffer;
    } else if (cchBuffer) {
	if (!(wm->info.pchBuffer = HeapAlloc(GetProcessHeap(), 0, cchBuffer)))
	    return MMIOERR_OUTOFMEMORY;
	wm->info.dwFlags |= MMIO_ALLOCBUF;
    } else {
	wm->info.pchBuffer = NULL;
    }

    wm->info.cchBuffer = cchBuffer;
    wm->info.pchNext = wm->info.pchBuffer;
    wm->info.pchEndRead = wm->info.pchBuffer;
    wm->info.pchEndWrite = wm->info.pchBuffer + cchBuffer;
    wm->info.lBufOffset = wm->info.lDiskOffset;
    wm->bBufferLoaded = FALSE;

    return MMSYSERR_NOERROR;
}