diff options
Diffstat (limited to 'src/3rdparty/freetype/src/autofit/aflatin.h')
| -rw-r--r-- | src/3rdparty/freetype/src/autofit/aflatin.h | 92 |
1 files changed, 38 insertions, 54 deletions
diff --git a/src/3rdparty/freetype/src/autofit/aflatin.h b/src/3rdparty/freetype/src/autofit/aflatin.h index 660b10c83f..2c0bfca18b 100644 --- a/src/3rdparty/freetype/src/autofit/aflatin.h +++ b/src/3rdparty/freetype/src/autofit/aflatin.h @@ -2,9 +2,10 @@ /* */ /* aflatin.h */ /* */ -/* Auto-fitter hinting routines for latin script (specification). */ +/* Auto-fitter hinting routines for latin writing system */ +/* (specification). */ /* */ -/* Copyright 2003, 2004, 2005, 2006, 2007, 2009 by */ +/* Copyright 2003-2007, 2009, 2011-2014 by */ /* David Turner, Robert Wilhelm, and Werner Lemberg. */ /* */ /* This file is part of the FreeType project, and may only be used, */ @@ -24,14 +25,13 @@ FT_BEGIN_HEADER + /* the `latin' writing system */ - /* the latin-specific script class */ + AF_DECLARE_WRITING_SYSTEM_CLASS( af_latin_writing_system_class ) - AF_DECLARE_SCRIPT_CLASS(af_latin_script_class) - -/* constants are given with units_per_em == 2048 in mind */ -#define AF_LATIN_CONSTANT( metrics, c ) \ + /* constants are given with units_per_em == 2048 in mind */ +#define AF_LATIN_CONSTANT( metrics, c ) \ ( ( (c) * (FT_Long)( (AF_LatinMetrics)(metrics) )->units_per_em ) / 2048 ) @@ -46,40 +46,30 @@ FT_BEGIN_HEADER /* * The following declarations could be embedded in the file `aflatin.c'; - * they have been made semi-public to allow alternate script hinters to - * re-use some of them. + * they have been made semi-public to allow alternate writing system + * hinters to re-use some of them. */ - /* Latin (global) metrics management */ - - enum - { - AF_LATIN_BLUE_CAPITAL_TOP, - AF_LATIN_BLUE_CAPITAL_BOTTOM, - AF_LATIN_BLUE_SMALL_F_TOP, - AF_LATIN_BLUE_SMALL_TOP, - AF_LATIN_BLUE_SMALL_BOTTOM, - AF_LATIN_BLUE_SMALL_MINOR, - - AF_LATIN_BLUE_MAX - }; - - -#define AF_LATIN_IS_TOP_BLUE( b ) ( (b) == AF_LATIN_BLUE_CAPITAL_TOP || \ - (b) == AF_LATIN_BLUE_SMALL_F_TOP || \ - (b) == AF_LATIN_BLUE_SMALL_TOP ) +#define AF_LATIN_IS_TOP_BLUE( b ) \ + ( (b)->properties & AF_BLUE_PROPERTY_LATIN_TOP ) +#define AF_LATIN_IS_NEUTRAL_BLUE( b ) \ + ( (b)->properties & AF_BLUE_PROPERTY_LATIN_NEUTRAL ) +#define AF_LATIN_IS_X_HEIGHT_BLUE( b ) \ + ( (b)->properties & AF_BLUE_PROPERTY_LATIN_X_HEIGHT ) +#define AF_LATIN_IS_LONG_BLUE( b ) \ + ( (b)->properties & AF_BLUE_PROPERTY_LATIN_LONG ) #define AF_LATIN_MAX_WIDTHS 16 -#define AF_LATIN_MAX_BLUES AF_LATIN_BLUE_MAX enum { - AF_LATIN_BLUE_ACTIVE = 1 << 0, - AF_LATIN_BLUE_TOP = 1 << 1, - AF_LATIN_BLUE_ADJUSTMENT = 1 << 2, /* used for scale adjustment */ - /* optimization */ + AF_LATIN_BLUE_ACTIVE = 1 << 0, /* set if zone height is <= 3/4px */ + AF_LATIN_BLUE_TOP = 1 << 1, /* set if we have a top blue zone */ + AF_LATIN_BLUE_NEUTRAL = 1 << 2, /* set if we have neutral blue zone */ + AF_LATIN_BLUE_ADJUSTMENT = 1 << 3, /* used for scale adjustment */ + /* optimization */ AF_LATIN_BLUE_FLAG_MAX }; @@ -98,16 +88,15 @@ FT_BEGIN_HEADER FT_Fixed scale; FT_Pos delta; - FT_UInt width_count; - AF_WidthRec widths[AF_LATIN_MAX_WIDTHS]; - FT_Pos edge_distance_threshold; - FT_Pos standard_width; - FT_Bool extra_light; + FT_UInt width_count; /* number of used widths */ + AF_WidthRec widths[AF_LATIN_MAX_WIDTHS]; /* widths array */ + FT_Pos edge_distance_threshold; /* used for creating edges */ + FT_Pos standard_width; /* the default stem thickness */ + FT_Bool extra_light; /* is standard width very light? */ /* ignored for horizontal metrics */ - FT_Bool control_overshoot; FT_UInt blue_count; - AF_LatinBlueRec blues[AF_LATIN_BLUE_MAX]; + AF_LatinBlueRec blues[AF_BLUE_STRINGSET_MAX]; FT_Fixed org_scale; FT_Pos org_delta; @@ -117,9 +106,9 @@ FT_BEGIN_HEADER typedef struct AF_LatinMetricsRec_ { - AF_ScriptMetricsRec root; - FT_UInt units_per_em; - AF_LatinAxisRec axis[AF_DIMENSION_MAX]; + AF_StyleMetricsRec root; + FT_UInt units_per_em; + AF_LatinAxisRec axis[AF_DIMENSION_MAX]; } AF_LatinMetricsRec, *AF_LatinMetrics; @@ -134,8 +123,7 @@ FT_BEGIN_HEADER FT_LOCAL( void ) af_latin_metrics_init_widths( AF_LatinMetrics metrics, - FT_Face face, - FT_ULong charcode ); + FT_Face face ); FT_LOCAL( void ) af_latin_metrics_check_digits( AF_LatinMetrics metrics, @@ -175,31 +163,27 @@ FT_BEGIN_HEADER /* - * This shouldn't normally be exported. However, other scripts might - * like to use this function as-is. + * The next functions shouldn't normally be exported. However, other + * writing systems might like to use these functions as-is. */ FT_LOCAL( FT_Error ) af_latin_hints_compute_segments( AF_GlyphHints hints, AF_Dimension dim ); - /* - * This shouldn't normally be exported. However, other scripts might - * want to use this function as-is. - */ FT_LOCAL( void ) af_latin_hints_link_segments( AF_GlyphHints hints, + FT_UInt width_count, + AF_WidthRec* widths, AF_Dimension dim ); - /* - * This shouldn't normally be exported. However, other scripts might - * want to use this function as-is. - */ FT_LOCAL( FT_Error ) af_latin_hints_compute_edges( AF_GlyphHints hints, AF_Dimension dim ); FT_LOCAL( FT_Error ) af_latin_hints_detect_features( AF_GlyphHints hints, + FT_UInt width_count, + AF_WidthRec* widths, AF_Dimension dim ); /* */ |