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[WIN32SS][NTGDI] Improve IntGetOutlineTextMetrics (#1760)

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Improve size checking of IntGetOutlineTextMetrics function.
This commit is contained in:
Katayama Hirofumi MZ 2019-08-02 20:28:30 +09:00 committed by GitHub
parent 44cddadba8
commit 7547757892
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GPG key ID: 4AEE18F83AFDEB23
1 changed files with 12 additions and 4 deletions
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16
win32ss/gdi/ntgdi/freetype.c
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@ -2304,22 +2304,30 @@ IntGetOutlineTextMetrics(PFONTGDI FontGDI,
Cache = &SharedFace->UserLanguage;
}
if (Cache->OutlineRequiredSize && Size < Cache->OutlineRequiredSize)
if (Size == 0 && Cache->OutlineRequiredSize > 0)
{
ASSERT(Otm == NULL);
return Cache->OutlineRequiredSize;
}
IntInitFontNames(&FontNames, SharedFace);
Cache->OutlineRequiredSize = FontNames.OtmSize;
if (!Cache->OutlineRequiredSize)
if (Size == 0)
{
Cache->OutlineRequiredSize = FontNames.OtmSize;
ASSERT(Otm == NULL);
IntFreeFontNames(&FontNames);
return Cache->OutlineRequiredSize;
}
ASSERT(Otm != NULL);
if (Size < Cache->OutlineRequiredSize)
{
DPRINT1("Size %u < OutlineRequiredSize %u\n", Size,
Cache->OutlineRequiredSize);
IntFreeFontNames(&FontNames);
return Cache->OutlineRequiredSize;
return 0; /* failure */
}
XScale = Face->size->metrics.x_scale;