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[WIN32K] Check for empty output rect in GreGradientFill

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Fixes a failed ASSERT.
CORE-14148 #resolve
This commit is contained in:
Timo Kreuzer 2017-12-27 10:48:55 +01:00
parent 5e5e5cde68
commit 456e2192b7
1 changed files with 6 additions and 0 deletions
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6
win32ss/gdi/ntgdi/fillshap.c
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@ -945,6 +945,12 @@ GreGradientFill(
rclExtent.top += pdc->ptlDCOrig.y; rclExtent.top += pdc->ptlDCOrig.y;
rclExtent.bottom += pdc->ptlDCOrig.y; rclExtent.bottom += pdc->ptlDCOrig.y;
if (RECTL_bIsEmptyRect(&rclExtent))
{
DC_UnlockDc(pdc);
return TRUE;
}
ptlDitherOrg.x = ptlDitherOrg.y = 0; ptlDitherOrg.x = ptlDitherOrg.y = 0;
IntLPtoDP(pdc, (LPPOINT)&ptlDitherOrg, 1); IntLPtoDP(pdc, (LPPOINT)&ptlDitherOrg, 1);