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Fix gdi coordinate clamping.

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This commit is contained in:
Armin Novak 2019-10-25 12:57:32 +02:00
parent ab2b288f87
commit 5cdb7b7bea
1 changed files with 4 additions and 4 deletions
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8
libfreerdp/gdi/gfx.c
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@ -133,12 +133,12 @@ static UINT gdi_OutputUpdate(rdpGdi* gdi, gdiGfxSurface* surface)
{
const UINT32 nXSrc = rects[i].left;
const UINT32 nYSrc = rects[i].top;
const UINT32 nXDst = (UINT32)(surfaceX + nXSrc * sx);
const UINT32 nYDst = (UINT32)(surfaceY + nYSrc * sy);
const UINT32 nXDst = (UINT32)MIN(surfaceX + nXSrc * sx, gdi->width - 1);
const UINT32 nYDst = (UINT32)MIN(surfaceY + nYSrc * sy, gdi->height - 1);
const UINT32 swidth = rects[i].right - rects[i].left;
const UINT32 sheight = rects[i].bottom - rects[i].top;
const UINT32 dwidth = (UINT32)(swidth * sx);
const UINT32 dheight = (UINT32)(sheight * sy);
const UINT32 dwidth = MIN((UINT32)(swidth * sx), (UINT32)gdi->width - nXDst);
const UINT32 dheight = MIN((UINT32)(sheight * sy), (UINT32)gdi->height - nYDst);
if (!freerdp_image_scale(gdi->primary_buffer, gdi->dstFormat,
gdi->stride, nXDst, nYDst, dwidth, dheight,