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Fixed argument checks.

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This commit is contained in:
Armin Novak 2015-08-05 17:32:38 +02:00
parent 0cbc46dc34
commit 4df5e2b998
1 changed files with 8 additions and 4 deletions
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8
libfreerdp/codec/color.c
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@ -1463,12 +1463,18 @@ int freerdp_image_copy_from_pointer_data(BYTE* pDstData, UINT32 DstFormat, int n
andStep = (nWidth + 7) / 8;
andStep += (andStep % 2);
if (!xorMask)
return -1;
if (dstBytesPerPixel == 4)
{
UINT32* pDstPixel;
if (xorBpp == 1)
{
if (!andMask)
return -1;
xorStep = (nWidth + 7) / 8;
xorStep += (xorStep % 2);
@ -1481,13 +1487,11 @@ int freerdp_image_copy_from_pointer_data(BYTE* pDstData, UINT32 DstFormat, int n
if (!vFlip)
{
xorBits = &xorMask[xorStep * y];
if (andMask)
andBits = &andMask[andStep * y];
}
else
{
xorBits = &xorMask[xorStep * (nHeight - y - 1)];
if (andMask)
andBits = &andMask[andStep * (nHeight - y - 1)];
}