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| author | Steve Kondik <shade@chemlab.org> | 2012-08-28 22:24:56 -0700 |
|---|---|---|
| committer | Steve Kondik <shade@chemlab.org> | 2012-08-29 00:08:19 -0700 |
| commit | 4d3876eef9f90a75f2ae55e880759937482e6b3f (patch) | |
| tree | d11d43d70415c861aabf09e1c77a2fc6c49cfd8e /include | |
| parent | 8bef833fa7b6f73a362a99dcaa83ee5a98f58e4d (diff) | |
| download | android_external_freetype-4d3876eef9f90a75f2ae55e880759937482e6b3f.tar.gz android_external_freetype-4d3876eef9f90a75f2ae55e880759937482e6b3f.tar.bz2 android_external_freetype-4d3876eef9f90a75f2ae55e880759937482e6b3f.zip | |
freetype: Add Infinality patchesjellybean-stablejellybean
* See here for details:
* http://www.infinality.net/blog/infinality-freetype-patches/
Change-Id: I4f747e45332fc7f16fb22ac3499069519017035f
Diffstat (limited to 'include')
| -rw-r--r-- | include/freetype/config/ftoption.h | 35 | ||||
| -rw-r--r-- | include/freetype/internal/ftobjs.h | 8 |
2 files changed, 42 insertions, 1 deletions
diff --git a/include/freetype/config/ftoption.h b/include/freetype/config/ftoption.h index 4414cb0..e4b99c2 100644 --- a/include/freetype/config/ftoption.h +++ b/include/freetype/config/ftoption.h @@ -92,7 +92,7 @@ FT_BEGIN_HEADER /* This is done to allow FreeType clients to run unmodified, forcing */ /* them to display normal gray-level anti-aliased glyphs. */ /* */ -/* #define FT_CONFIG_OPTION_SUBPIXEL_RENDERING */ +#define FT_CONFIG_OPTION_SUBPIXEL_RENDERING /*************************************************************************/ @@ -560,6 +560,39 @@ FT_BEGIN_HEADER /*************************************************************************/ /* */ + /* Define TT_CONFIG_OPTION_SUBPIXEL_HINTING if you want to compile */ + /* EXPERIMENTAL subpixel hinting support into the TrueType driver. This */ + /* replaces the native TrueType hinting mechanism when anything but */ + /* FT_RENDER_MODE_MONO is requested. */ + /* */ + /* Enabling this causes the TrueType driver to ignore instructions under */ + /* certain conditions. This is done in accordance with the guide here, */ + /* with some minor differences: */ + /* */ + /* http://www.microsoft.com/typography/cleartype/truetypecleartype.aspx */ + /* */ + /* By undefining this, you only compile the code necessary to hint */ + /* TrueType glyphs with native TT hinting. */ + /* */ + /* This option requires TT_CONFIG_OPTION_BYTECODE_INTERPRETER to be */ + /* defined. */ + /* */ +#define TT_CONFIG_OPTION_SUBPIXEL_HINTING + + + /*************************************************************************/ + /* */ + /* Define FT_CONFIG_OPTION_INFINALITY_PATCHSET if you want to enable */ + /* all additional infinality patches, which are configured via env */ + /* variables. */ + /* */ + /* This option requires TT_CONFIG_OPTION_SUBPIXEL_HINTING to */ + /* defined. */ + /* */ +#define FT_CONFIG_OPTION_INFINALITY_PATCHSET + + /*************************************************************************/ + /* */ /* If you define TT_CONFIG_OPTION_UNPATENTED_HINTING, a special version */ /* of the TrueType bytecode interpreter is used that doesn't implement */ /* any of the patented opcodes and algorithms. The patents related to */ diff --git a/include/freetype/internal/ftobjs.h b/include/freetype/internal/ftobjs.h index eee3d24..d4da5da 100644 --- a/include/freetype/internal/ftobjs.h +++ b/include/freetype/internal/ftobjs.h @@ -81,6 +81,14 @@ FT_BEGIN_HEADER #define FT_PIX_ROUND( x ) FT_PIX_FLOOR( (x) + 32 ) #define FT_PIX_CEIL( x ) FT_PIX_FLOOR( (x) + 63 ) + /* + * These are used in ttinterp.c for subpixel hinting with an + * adjustable grids-per-pixel value. + */ +#define FT_PIX_FLOOR_GRID( x, n ) ( (x) & ~( 64 / (n) - 1 ) ) +#define FT_PIX_ROUND_GRID( x, n ) FT_PIX_FLOOR_GRID( (x) + 32 / (n), (n) ) +#define FT_PIX_CEIL_GRID( x, n ) FT_PIX_FLOOR_GRID( (x) + 63 / (n), (n) ) + /* * Return the highest power of 2 that is <= value; this correspond to |