C++ (Cpp) MFDRV_StretchBlt Examples

Example #1

File: bitmap.c Project: staring/RosFE

/*
 * @unimplemented
 */
int
WINAPI
StretchDIBits(
    HDC hdc,
    int XDest,
    int YDest,
    int nDestWidth,
    int nDestHeight,
    int XSrc,
    int YSrc,
    int nSrcWidth,
    int nSrcHeight,
    CONST VOID *lpBits,
    CONST BITMAPINFO *lpBitsInfo,
    UINT iUsage,
    DWORD dwRop)

{
    PDC_ATTR pDc_Attr;
    PBITMAPINFO pConvertedInfo = NULL;
    UINT ConvertedInfoSize = 0;
    INT LinesCopied = 0;
    UINT cjBmpScanSize = 0;
    PVOID pvSafeBits = NULL;
    BOOL Hit = FALSE;

    DPRINT("StretchDIBits %p : %p : %u\n", lpBits, lpBitsInfo, iUsage);
#if 0
// Handle something other than a normal dc object.
    if (GDI_HANDLE_GET_TYPE(hdc) != GDI_OBJECT_TYPE_DC)
    {
        if (GDI_HANDLE_GET_TYPE(hdc) == GDI_OBJECT_TYPE_METADC)
        return MFDRV_StretchBlt( hdc,
                XDest,
                YDest,
                nDestWidth,
                nDestHeight,
                XSrc,
                YSrc,
                nSrcWidth,
                nSrcHeight,
                lpBits,
                lpBitsInfo,
                iUsage,
                dwRop);
        else
        {
            PLDC pLDC = GdiGetLDC(hdc);
            if ( !pLDC )
            {
                SetLastError(ERROR_INVALID_HANDLE);
                return 0;
            }
            if (pLDC->iType == LDC_EMFLDC)
            {
                return EMFDRV_StretchBlt(hdc,
                        XDest,
                        YDest,
                        nDestWidth,
                        nDestHeight,
                        XSrc,
                        YSrc,
                        nSrcWidth,
                        nSrcHeight,
                        lpBits,
                        lpBitsInfo,
                        iUsage,
                        dwRop);
            }
            return 0;
        }
    }
#endif
    pConvertedInfo = ConvertBitmapInfo(lpBitsInfo, iUsage, &ConvertedInfoSize,
        FALSE);
    if (!pConvertedInfo)
    {
        return 0;
    }

    cjBmpScanSize = GdiGetBitmapBitsSize((BITMAPINFO *) pConvertedInfo);

    if (lpBits)
    {
        pvSafeBits = RtlAllocateHeap(GetProcessHeap(), 0, cjBmpScanSize);
        if (pvSafeBits)
        {
            _SEH2_TRY
            {
                RtlCopyMemory(pvSafeBits, lpBits, cjBmpScanSize);
            }
            _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
            {
                Hit = TRUE;
            }
            _SEH2_END

            if (Hit)
            {
                // We don't die, we continue on with a allocated safe pointer to kernel
                // space.....
                DPRINT1("StretchDIBits fail to read BitMapInfo: %p or Bits: %p & Size: %u\n",
                    pConvertedInfo, lpBits, cjBmpScanSize);
            }
            DPRINT("StretchDIBits Allocate Bits %u!!!\n", cjBmpScanSize);
        }
    }

    if (!GdiGetHandleUserData(hdc, GDI_OBJECT_TYPE_DC, (PVOID) & pDc_Attr))
    {
        SetLastError(ERROR_INVALID_PARAMETER);
        return 0;
    }
    /*
     if ( !pDc_Attr ||
     iUsage == DIB_PAL_COLORS ||
     ((pConvertedInfo->bmiHeader.biSize >= sizeof(BITMAPINFOHEADER)) &&
     (pConvertedInfo->bmiHeader.biCompression == BI_JPEG ||
     pConvertedInfo->bmiHeader.biCompression  == BI_PNG )) )*/
    {
        LinesCopied = NtGdiStretchDIBitsInternal(hdc, XDest, YDest, nDestWidth, nDestHeight, XSrc,
            YSrc, nSrcWidth, nSrcHeight, pvSafeBits, pConvertedInfo, (DWORD) iUsage, dwRop,
            ConvertedInfoSize, cjBmpScanSize,
            NULL);
    }
    if (pvSafeBits)
        RtlFreeHeap(RtlGetProcessHeap(), 0, pvSafeBits);
    if (lpBitsInfo != pConvertedInfo)
        RtlFreeHeap(RtlGetProcessHeap(), 0, pConvertedInfo);

    return LinesCopied;
}

Example #2

File: bitblt.c Project: howard5888/wineT

/***********************************************************************
 *           MFDRV_BitBlt
 */
BOOL MFDRV_BitBlt( PHYSDEV devDst, INT xDst, INT yDst, INT width, INT height,
		   PHYSDEV devSrc, INT xSrc, INT ySrc, DWORD rop )
{
    return MFDRV_StretchBlt(devDst, xDst, yDst, width, height, devSrc,
                            xSrc, ySrc, width, height, rop);
}