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let freerdp_image_scale() determine step size

This commit is contained in:
Nathan Loewen 2020-09-06 21:14:17 -05:00 committed by akallabeth
parent 19f74a2698
commit a5ba0bbdf0
1 changed files with 7 additions and 0 deletions
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7
libfreerdp/codec/color.c
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@ -777,6 +777,13 @@ BOOL freerdp_image_scale(BYTE* pDstData, DWORD DstFormat, UINT32 nDstStep, UINT3
UINT32 nSrcWidth, UINT32 nSrcHeight) UINT32 nSrcWidth, UINT32 nSrcHeight)
{ {
BOOL rc = FALSE; BOOL rc = FALSE;
if (nDstStep == 0)
nDstStep = nDstWidth * GetBytesPerPixel(DstFormat);
if (nSrcStep == 0)
nSrcStep = nSrcWidth * GetBytesPerPixel(SrcFormat);
#if defined(SWSCALE_FOUND) || defined(CAIRO_FOUND) #if defined(SWSCALE_FOUND) || defined(CAIRO_FOUND)
const BYTE* src = &pSrcData[nXSrc * GetBytesPerPixel(SrcFormat) + nYSrc * nSrcStep]; const BYTE* src = &pSrcData[nXSrc * GetBytesPerPixel(SrcFormat) + nYSrc * nSrcStep];
BYTE* dst = &pDstData[nXDst * GetBytesPerPixel(DstFormat) + nYDst * nDstStep]; BYTE* dst = &pDstData[nXDst * GetBytesPerPixel(DstFormat) + nYDst * nDstStep];