shithub: freetype+ttf2subf

Info  •  Files  •  Log  •  Branches

[truetype] Improve handling of broken sbit advance widths.

* src/truetype/ttgload.c (TT_Load_Glyph): Use the glyph's (scaled)
`linearHoriAdvance' if the sbit's `horiAdvance' value is zero.

Cf. font `Fixedsys Excelsior' v3.01 (FSEX300.ttf), glyph A, 16ppem.

git/fs: mount .git/fs: mount/attach disallowed

--- a/ChangeLog

+++ b/ChangeLog

@@ -1,5 +1,14 @@

 2013-06-10  Werner Lemberg  <[email protected]>

+	[truetype] Improve handling of broken sbit advance widths.

+

+	* src/truetype/ttgload.c (TT_Load_Glyph): Use the glyph's (scaled)

+	`linearHoriAdvance' if the sbit's `horiAdvance' value is zero.

+

+	Cf. font `Fixedsys Excelsior' v3.01 (FSEX300.ttf), glyph A, 16ppem.

+

+2013-06-10  Werner Lemberg  <[email protected]>

+

 	[sfnt] Improve embedded bitmap tracing.

 	* src/base/ftobjs.c (FT_Request_Size): Move trace message regarding

--- a/src/truetype/ttgload.c

+++ b/src/truetype/ttgload.c

@@ -2224,6 +2224,13 @@

           glyph->linearHoriAdvance = loader.linear;

           glyph->linearVertAdvance = loader.top_bearing + loader.bbox.yMax -

                                        loader.vadvance;

+

+          /* sanity check: if `horiAdvance' in the sbit metric */

+          /* structure isn't set, use `linearHoriAdvance'      */

+          if ( !glyph->metrics.horiAdvance && glyph->linearHoriAdvance )

+            glyph->metrics.horiAdvance =

+              FT_MulFix( glyph->linearHoriAdvance,

+                         size->root.metrics.x_scale );

         }

         return FT_Err_Ok;