2009-01-29  Behdad Esfahbod  <behdad@gnome.org>

        * pango/opentype/harfbuzz-open.h:
        * pango/opentype/harfbuzz-gdef.c (Make_ClassRange),
        (HB_GDEF_Build_ClassDefinition):
        * pango/opentype/harfbuzz-gpos.c (Load_PosClassRule),
        (Load_ChainPosClassRule):
        * pango/opentype/harfbuzz-gsub.c (Load_SubClassRule),
        (Load_ChainSubClassRule):
        * pango/opentype/harfbuzz-open.c (Load_ClassDef1),
        (Load_ClassDef2), (_HB_OPEN_Load_ClassDefinition),
        (_HB_OPEN_Load_EmptyClassDefinition),
        (_HB_OPEN_Free_ClassDefinition):
        Remove ClassDef->Defined field.  This is the comment accompanying it:

          The `Defined' field is not defined in the OpenType specification
          but apparently needed for processing fonts like trado.ttf: This
          font refers to a class which contains not a single element.  We
          map such classes to class 0.

        The comment is correct that trado.ttf (MS Traditional Arabic) uses
        such classes.  However, in my testing I couldn't identify any
        problems with the font if the special handling is removed.  I also
        processed as many fonts as I could get my hand on and trado.ttf was
        the only not-totally-broken font hitting the special-case code.
        DejaVu fonts hit it too, but I'm sure they do not require the
        special-handling code.  Most probably, that code introduces bugs
        in them.

        The special-casing was consuming lots of memory.  EIGHT MEGABYTES
        for loading DejaVu Sans!  While this could be complete fixed, I
        decided to remove the special-handling code altogether.  I don't
        think it will make any real difference, and if it does, we'll fix
        fonts.  Such hacks will not be in harfbuzz-ng anyway.

        Bug originally reported by nsf.

2008-01-15  Behdad Esfahbod  <behdad@gnome.org>

        * pango/opentype/*:
        HarfBuzz was relicensed to a more generous and simpler license.
        Adapt.  See pango/opentype/COPYING for the new license which is
        LGPL-compatible.

2007-11-07  Behdad Esfahbod  <behdad@gnome.org>

        * pango/opentype/*: And some more.

2007-11-07  Behdad Esfahbod  <behdad@gnome.org>

        * pango/opentype/*: Some more cleanup and merging.

2007-10-25  Behdad Esfahbod  <behdad@gnome.org>

        * pango/opentype/*: More cleanup, remove redundant error types.

2007-10-24  Behdad Esfahbod  <behdad@gnome.org>

        * pango/opentype/*: Rename ftglue.c to harfbuzz-impl.c and more
        type renames and moving code around.

2007-10-24  Behdad Esfahbod  <behdad@gnome.org>

        * pango/opentype/*: New header file harfbuzz-global.h.  Rename
        FT_* int types to HB_* types.

2007-10-11  Behdad Esfahbod  <behdad@gnome.org>

        * pango/opentype/*: Mark internal symbols as HB_INTERNAL and
        define that to static in harfbuzz.c.

        * pango/opentype/harfbuzz-buffer-internal.h: New file.

2007-10-11  Behdad Esfahbod  <behdad@gnome.org>

        Bug 485621 – Get rid of freetype memory allocator in harfbuzz

        * pango/opentype/*: Remove all occurences of FT_Memory.  Use
        malloc/realloc/free directly.

        * pango/pango-ot*: Update to above.

2007-10-10  Behdad Esfahbod  <behdad@gnome.org>

        Bug 485559 – Boston Summit HarfBuzz optimizations

        * pango/opentype/*: HarfBuzz hacking to:

          - Rename last remaining FT_Err stuff to HB_Err.

          - Fix a couple invalid table paths to be permissive so
            fonts work better.  Particularly GDEF table for Nafees
            Nastaliq is loaded and works great now.

          - Optimize harfbuzz buffer to not copy/swap for simple
          one-to-one and "copy" GSUB operations.

        * pango/pango-ot*: Update to FT_Err to HB_Err renaming.

2007-04-03  Behdad Esfahbod  <behdad@gnome.org>

        * pango/opentype/harfbuzz-gdef.c (_HB_GDEF_Check_Property):
        * pango/opentype/harfbuzz-gpos.c (HB_Done_GPOS_Table),
        (Lookup_PairPos):
        * pango/opentype/harfbuzz-open.c (Get_Class1):
        Copy fixes from harfbuzz stable branch.  Includes a leak fix,
        a kerning fix, and an array out-of-bound access fix.

2006-04-10  Behdad Esfahbod  <behdad@gnome.org>

        Fix minor bugs reported by the Coverity scan report.

        * pango/opentype/harfbuzz-gdef.c (HB_GDEF_Build_ClassDefinition):
        * pango/opentype/harfbuzz-gpos.c (HB_GPOS_Query_Scripts),
        (HB_GPOS_Query_Languages), (HB_GPOS_Query_Features): Do not access
        structs before we check them for nullity.

        * pango/pango-layout.c (pango_layout_index_to_line),
        (pango_layout_index_to_line_and_extents),
        (pango_layout_index_to_pos): Check for invalid iterators outside the
        loop, so we don't crash.

        * pango/pango-layout.c (pango_layout_line_x_to_index): Set
        char_trailing instead of trailing in one of too many paths.  Should
        have been a typo.

        * pango/pangox.c (get_font_metrics_from_subfonts): Check for nullity
        somewhere.

2006-04-03  Behdad Esfahbod  <behdad@gnome.org>

        * pango/opentype/harfbuzz-impl.h: Make sure TTAG_GDEF and frineds are
        defined, needed for FreeType <= 2.1.7 (pointed by Tim Janik).

2006-03-31  Behdad Esfahbod  <behdad@gnome.org>

        Convert pango/opentype to the new project called HarfBuzz.

        * pango/opentype/*: Restructured.

        * pango/pango-ot-*: Updated to use HarfBuzz symbol names.