shithub: freetype+ttf2subf

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[type42] Fix auto-hinting.

The autohinter could not access the base (unscaled) outline in the
child TrueType glyph slot. We now share the internal parts between
the parent and child glyph slots. Fixes #1057.

* src/type42/t42objs.c (T42_GlyphSlot_Init): Remove the internal parts
of `T42_GlyphSlot' and replace it with the child TrueType structure.
(T42_GlyphSlot_Done): Updated accordingly.

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

--- a/ChangeLog

+++ b/ChangeLog

@@ -1,3 +1,15 @@

+2021-05-27  Alexei Podtelezhnikov  <apodtele@gmail.com>

+

+	[type42] Fix auto-hinting.

+

+	The autohinter could not access the base (unscaled) outline in the

+	child TrueType glyph slot. We now share the internal parts between

+	the parent and child glyph slots. Fixes #1057.

+

+	* src/type42/t42objs.c (T42_GlyphSlot_Init): Remove the internal parts

+	of `T42_GlyphSlot' and replace it with the child TrueType structure.

+	(T42_GlyphSlot_Done): Updated accordingly.

+

 2021-05-25  Werner Lemberg  <wl@gnu.org>

 	[psaux] Guard and trace AFM kern data allocation.

--- a/src/type42/t42objs.c

+++ b/src/type42/t42objs.c

@@ -583,6 +583,7 @@

     FT_Face        face    = t42slot->face;

     T42_Face       t42face = (T42_Face)face;

     FT_GlyphSlot   ttslot;

+    FT_Memory      memory  = face->memory;

     FT_Error       error   = FT_Err_Ok;

@@ -598,6 +599,11 @@

         slot->ttslot = ttslot;

     }

+    /* share the loader so that the autohinter can see it */

+    FT_GlyphLoader_Done( t42slot->internal->loader );

+    FT_FREE( t42slot->internal );

+    t42slot->internal = slot->ttslot->internal;

+

     return error;

   }

@@ -609,6 +615,7 @@

     FT_Done_GlyphSlot( slot->ttslot );

+    t42slot->internal = NULL;

   }