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Diffstat (limited to 'nx-X11/extras/freetype2/src/autofit/aflatin.h')
| -rw-r--r-- | nx-X11/extras/freetype2/src/autofit/aflatin.h | 169 |
1 files changed, 169 insertions, 0 deletions
diff --git a/nx-X11/extras/freetype2/src/autofit/aflatin.h b/nx-X11/extras/freetype2/src/autofit/aflatin.h new file mode 100644 index 000000000..e7e8e4842 --- /dev/null +++ b/nx-X11/extras/freetype2/src/autofit/aflatin.h @@ -0,0 +1,169 @@ +#ifndef __AFLATIN_H__ +#define __AFLATIN_H__ + +#include "afhints.h" + +FT_BEGIN_HEADER + + /* + * the latin-specific script class + * + */ + FT_LOCAL( const AF_ScriptClassRec ) af_latin_script_class; + + /***************************************************************************/ + /***************************************************************************/ + /***** *****/ + /***** L A T I N G L O B A L M E T R I C S *****/ + /***** *****/ + /***************************************************************************/ + /***************************************************************************/ + + /* + * the following declarations could be embedded in the file "aflatin.c" + * they've been made semi-public to allow alternate script 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_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_FLAG_MAX + }; + + + typedef struct AF_LatinBlueRec_ + { + AF_WidthRec ref; + AF_WidthRec shoot; + FT_UInt flags; + + } AF_LatinBlueRec, *AF_LatinBlue; + + + typedef struct AF_LatinAxisRec_ + { + FT_Fixed scale; + FT_Pos delta; + + FT_UInt width_count; + AF_WidthRec widths[ AF_LATIN_MAX_WIDTHS ]; + FT_Pos edge_distance_threshold; + + /* ignored for horizontal metrics */ + FT_Bool control_overshoot; + FT_UInt blue_count; + AF_LatinBlueRec blues[ AF_LATIN_BLUE_MAX ]; + + FT_Fixed org_scale; + FT_Pos org_delta; + + } AF_LatinAxisRec, *AF_LatinAxis; + + + typedef struct AF_LatinMetricsRec_ + { + AF_ScriptMetricsRec root; + FT_UInt units_per_em; + AF_LatinAxisRec axis[ AF_DIMENSION_MAX ]; + + } AF_LatinMetricsRec, *AF_LatinMetrics; + + + + FT_LOCAL( FT_Error ) + af_latin_metrics_init( AF_LatinMetrics metrics, + FT_Face face ); + + FT_LOCAL( void ) + af_latin_metrics_scale( AF_LatinMetrics metrics, + AF_Scaler scaler ); + + + + /***************************************************************************/ + /***************************************************************************/ + /***** *****/ + /***** L A T I N G L Y P H A N A L Y S I S *****/ + /***** *****/ + /***************************************************************************/ + /***************************************************************************/ + + enum + { + AF_LATIN_HINTS_HORZ_SNAP = (1 << 0), /* enable stem width snapping */ + AF_LATIN_HINTS_VERT_SNAP = (1 << 1), /* enable stem height snapping */ + AF_LATIN_HINTS_STEM_ADJUST = (1 << 2), /* enable stem width/height adjustment */ + AF_LATIN_HINTS_MONO = (1 << 3) /* indicate monochrome rendering */ + }; + +#define AF_LATIN_HINTS_DO_HORZ_SNAP(h) \ + AF_HINTS_TEST_OTHER(h,AF_LATIN_HINTS_HORZ_SNAP) + +#define AF_LATIN_HINTS_DO_VERT_SNAP(h) \ + AF_HINTS_TEST_OTHER(h,AF_LATIN_HINTS_VERT_SNAP) + +#define AF_LATIN_HINTS_DO_STEM_ADJUST(h) \ + AF_HINTS_TEST_OTHER(h,AF_LATIN_HINTS_STEM_ADJUST) + +#define AF_LATIN_HINTS_DO_MONO(h) \ + AF_HINTS_TEST_OTHER(h,AF_LATIN_HINTS_MONO) + + + /* this shouldn't normally be exported. However, other scripts might + * like to use this function as-is + */ + FT_LOCAL( void ) + 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, + 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_compute_edges( AF_GlyphHints hints, + AF_Dimension dim ); + + FT_LOCAL( void ) + af_latin_hints_detect_features( AF_GlyphHints hints, + AF_Dimension dim ); + +/* */ + +FT_END_HEADER + +#endif /* __AFLATIN_H__ */ |