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[FREETYPE] Fix WordPad ruler rendering (#7803)

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Based on @Doug-Lyons's wordpad-ruler-fix-05.patch.
JIRA issue: CORE-19870
In IntRequestFontSize function, if lfWidth < 10, then
req.width = 0;.

Co-authored-by: Doug Lyons <douglyons@douglyons.com>
This commit is contained in:
Katayama Hirofumi MZ 2025-03-21 08:52:20 +09:00 committed by GitHub
parent 7dc7b866b1
commit 27bb510282
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1 changed files with 9 additions and 8 deletions
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17
win32ss/gdi/ntgdi/freetype.c
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@ -4095,7 +4095,7 @@ IntRequestFontSize(PDC dc, PFONTGDI FontGDI, LONG lfWidth, LONG lfHeight)
TT_OS2 *pOS2;
TT_HoriHeader *pHori;
FT_WinFNT_HeaderRec WinFNT;
LONG Ascent, Descent, Sum, EmHeight, Width64;
LONG Ascent, Descent, Sum, EmHeight;
lfWidth = abs(lfWidth);
if (lfHeight == 0)
@ -4205,20 +4205,21 @@ IntRequestFontSize(PDC dc, PFONTGDI FontGDI, LONG lfWidth, LONG lfHeight)
#if 1
/* I think this is wrong implementation but its test result is better. */
if (lfWidth != 0)
Width64 = FT_MulDiv(lfWidth, face->units_per_EM, pOS2->xAvgCharWidth) << 6;
else
Width64 = 0;
req.width = FT_MulDiv(lfWidth, face->units_per_EM, pOS2->xAvgCharWidth) << 6;
#else
/* I think this is correct implementation but it is mismatching to the
other metric functions. The test result is bad. */
if (lfWidth != 0)
Width64 = (FT_MulDiv(lfWidth, 96 * 5, 72 * 3) << 6); /* ??? FIXME */
else
Width64 = 0;
req.width = (FT_MulDiv(lfWidth, 96 * 5, 72 * 3) << 6); /* ??? FIXME */
#endif
else
req.width = 0;
/* HACK: We do not handle small widths well, so just use zero for these. See CORE-19870. */
if (lfWidth < 10)
req.width = 0;
req.type = FT_SIZE_REQUEST_TYPE_NOMINAL;
req.width = Width64;
req.height = (EmHeight << 6);
req.horiResolution = 0;
req.vertResolution = 0;