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- Remove coordinate checks from NtGdiStretchBlt, since they're done at a later stage differently now

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- Fixes a div/0 crash that happened in XnView and Acrobat Reader 9 Setup

svn path=/trunk/; revision=39510
This commit is contained in:
Gregor Schneider 2009-02-09 13:10:39 +00:00
parent ef2b5f4b28
commit e337dfa99d
1 changed files with 0 additions and 50 deletions
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50
reactos/subsystems/win32/win32k/objects/bitblt.c
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@ -857,56 +857,6 @@ NtGdiStretchBlt(
goto failed;
}
int sw = BitmapSrc->SurfObj.sizlBitmap.cx;
int sh = BitmapSrc->SurfObj.sizlBitmap.cy;
if ( SourceRect.left < 0 )
{
DestRect.left = DestRect.right - (DestRect.right-DestRect.left) * (SourceRect.right)/abs(SourceRect.right-SourceRect.left);
SourceRect.left = 0;
}
if ( SourceRect.top < 0 )
{
DestRect.top = DestRect.bottom - (DestRect.bottom-DestRect.top) * (SourceRect.bottom)/abs(SourceRect.bottom-SourceRect.top);
SourceRect.top = 0;
}
if ( SourceRect.right < -1 )
{
DestRect.right = DestRect.left + (DestRect.right-DestRect.left) * (-1-SourceRect.left)/abs(SourceRect.right-SourceRect.left);
SourceRect.right = -1;
}
if ( SourceRect.bottom < -1 )
{
DestRect.bottom = DestRect.top + (DestRect.bottom-DestRect.top) * (-1-SourceRect.top)/abs(SourceRect.bottom-SourceRect.top);
SourceRect.bottom = -1;
}
if ( SourceRect.right > sw )
{
DestRect.right = DestRect.left + (DestRect.right-DestRect.left) * abs(sw-SourceRect.left) / abs(SourceRect.right-SourceRect.left);
SourceRect.right = sw;
}
if ( SourceRect.bottom > sh )
{
DestRect.bottom = DestRect.top + (DestRect.bottom-DestRect.top) * abs(sh-SourceRect.top) / abs(SourceRect.bottom-SourceRect.top);
SourceRect.bottom = sh;
}
sw--;
sh--;
if ( SourceRect.left > sw )
{
DestRect.left = DestRect.right - (DestRect.right-DestRect.left) * (SourceRect.right-sw) / abs(SourceRect.right-SourceRect.left);
SourceRect.left = 0;
}
if ( SourceRect.top > sh )
{
DestRect.top = DestRect.bottom - (DestRect.bottom-DestRect.top) * (SourceRect.bottom-sh) / abs(SourceRect.bottom-SourceRect.top);
SourceRect.top = 0;
}
if (0 == (DestRect.right-DestRect.left) || 0 == (DestRect.bottom-DestRect.top) || 0 == (SourceRect.right-SourceRect.left) || 0 == (SourceRect.bottom-SourceRect.top))
{
SetLastWin32Error(ERROR_INVALID_PARAMETER);
goto failed;
}
/* Create the XLATEOBJ. */
XlateObj = IntCreateXlateForBlt(DCDest, DCSrc, BitmapDest, BitmapSrc);
if (XlateObj == (XLATEOBJ*)-1)