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Diffstat (limited to 'gfx/graphite2/src/inc/TtfTypes.h')
| -rw-r--r-- | gfx/graphite2/src/inc/TtfTypes.h | 419 |
1 files changed, 419 insertions, 0 deletions
diff --git a/gfx/graphite2/src/inc/TtfTypes.h b/gfx/graphite2/src/inc/TtfTypes.h new file mode 100644 index 0000000000..ae67915304 --- /dev/null +++ b/gfx/graphite2/src/inc/TtfTypes.h @@ -0,0 +1,419 @@ +/* GRAPHITE2 LICENSING + + Copyright 2010, SIL International + All rights reserved. + + This library is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2.1 of License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should also have received a copy of the GNU Lesser General Public + License along with this library in the file named "LICENSE". + If not, write to the Free Software Foundation, 51 Franklin Street, + Suite 500, Boston, MA 02110-1335, USA or visit their web page on the + internet at http://www.fsf.org/licenses/lgpl.html. + +Alternatively, the contents of this file may be used under the terms of the +Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public +License, as published by the Free Software Foundation, either version 2 +of the License or (at your option) any later version. +*/ +#pragma once +/*--------------------------------------------------------------------*//*:Ignore this sentence. + +File: TtfTypes.h +Responsibility: Tim Eves +Last reviewed: Not yet. + +Description: +Provides types required to represent the TTF basic types. +-------------------------------------------------------------------------------*//*:End Ignore*/ + + +//********************************************************************************************** +// Include files +//********************************************************************************************** +namespace graphite2 +{ +namespace TtfUtil +{ +//********************************************************************************************** +// Forward declarations +//********************************************************************************************** + + +//********************************************************************************************** +// Type declarations +//********************************************************************************************** +typedef unsigned char uint8; +typedef uint8 byte; +typedef signed char int8; +typedef unsigned short uint16; +typedef short int16; +typedef unsigned int uint32; +typedef int int32; + +typedef int16 short_frac; +typedef int32 fixed; +typedef int16 fword; +typedef uint16 ufword; +typedef int16 f2dot14; +typedef uint32 long_date_time[2]; + +//********************************************************************************************** +// Constants and enum types +//**********************************************************************************************/ +enum +{ + OneFix = 1<<16 +}; + +//********************************************************************************************** +// Table declarations +//********************************************************************************************** +namespace Sfnt +{ +#pragma pack(push,1) // We need this or the structure members aren't aligned + // correctly. Fortunately this form of pragma is supposed + // to be recognised by VS C++ too (at least according to + // MSDN). + + struct OffsetSubTable + { + uint32 scaler_type; + uint16 num_tables, + search_range, + entry_selector, + range_shift; + struct Entry + { + uint32 tag, + checksum, + offset, + length; + } table_directory[1]; + + enum ScalerType + { + TrueTypeMac = 0x74727565U, + TrueTypeWin = 0x00010000U, + Type1 = 0x74797031U + }; + }; + + + + + struct CharacterCodeMap + { + uint16 version, + num_subtables; + struct + { + uint16 platform_id, + platform_specific_id; + uint32 offset; + } encoding[1]; + }; + + struct CmapSubTable + { + uint16 format, + length, + language; + }; + + struct CmapSubTableFormat4 : CmapSubTable + { + uint16 seg_count_x2, + search_range, + entry_selector, + range_shift, + end_code[1]; + // There are arrarys after this which need their + // start positions calculated since end_code is + // seg_count uint16s long. + }; + + struct CmapSubTableFormat12 + { + fixed format; + uint32 length, + language, + num_groups; + struct + { + uint32 start_char_code, + end_char_code, + start_glyph_id; + } group[1]; + }; + + + + struct FontHeader + { + fixed version, + font_revision; + uint32 check_sum_adjustment, + magic_number; + uint16 flags, + units_per_em; + long_date_time created, + modified; + fword x_min, + y_min, + x_max, + y_max; + uint16 mac_style, + lowest_rec_ppem; + int16 font_direction_hint, + index_to_loc_format, + glyph_data_format; + enum + { + MagicNumber = 0x5F0F3CF5, + GlypDataFormat = 0 + }; + enum {ShortIndexLocFormat, LongIndexLocFormat}; + }; + + + + + struct PostScriptGlyphName + { + fixed format, + italic_angle; + fword underline_position, + underline_thickness; + uint32 is_fixed_pitch, + min_mem_type42, + max_mem_type42, + min_mem_type1, + max_mem_type1; + enum + { + Format1 = 0x10000, + Format2 = 0x20000, + Format25 = 0x28000, + Format3 = 0x30000, + Format4 = 0x40000 + }; + }; + + struct PostScriptGlyphName2 : PostScriptGlyphName + { + uint16 number_of_glyphs, + glyph_name_index[1]; + }; + + struct PostScriptGlyphName25 : PostScriptGlyphName + { + uint16 number_of_glyphs; + int8 offset[1]; + }; + + struct PostScriptGlyphName3 : PostScriptGlyphName {}; + + struct PostScriptGlyphName4 : PostScriptGlyphName + { + uint16 glyph_to_char_map[1]; + }; + + + struct HorizontalHeader + { + fixed version; + fword ascent, + descent, + line_gap; + ufword advance_width_max; + fword min_left_side_bearing, + max_left_side_bearing, + x_max_element; + int16 caret_slope_rise, + caret_slope_run; + fword caret_offset; + int16 reserved[4], + metric_data_format; + uint16 num_long_hor_metrics; + }; + + struct MaximumProfile + { + fixed version; + uint16 num_glyphs, + max_points, + max_contours, + max_component_points, + max_component_contours, + max_zones, + max_twilight_points, + max_storage, + max_function_defs, + max_instruction_defs, + max_stack_elements, + max_size_of_instructions, + max_component_elements, + max_component_depth; + }; + + + typedef byte Panose[10]; + + struct Compatibility0 + { + uint16 version; + int16 x_avg_char_width; + uint16 weight_class, + width_class; + int16 fs_type, + y_subscript_x_size, + y_subscript_y_size, + y_subscript_x_offset, + y_subscript_y_offset, + y_superscript_x_size, + y_superscript_y_size, + y_superscript_x_offset, + y_superscript_y_offset, + y_strikeout_size, + y_strikeout_position, + family_class; + Panose panose; + uint32 unicode_range[4]; + int8 ach_vend_id[4]; + uint16 fs_selection, + fs_first_char_index, + fs_last_char_index, // Acording to Apple's spec this is where v0 should end + typo_ascender, + typo_descender, + type_linegap, + win_ascent, + win_descent; + + enum + { + Italic =0x01, + Underscore=0x02, + Negative =0x04, + Outlined =0x08, + StrikeOut =0x10, + Bold =0x20 + }; + }; + + struct Compatibility1 : Compatibility0 + { + uint32 codepage_range[2]; + }; + + struct Compatibility2 : Compatibility1 + { + int16 x_height, + cap_height; + uint16 default_char, + break_char, + max_context; + }; + + struct Compatibility3 : Compatibility2 {}; + + typedef Compatibility3 Compatibility; + + + struct NameRecord + { + uint16 platform_id, + platform_specific_id, + language_id, + name_id, + length, + offset; + enum {Unicode, Mactintosh, Reserved, Microsoft}; + enum + { + Copyright, Family, Subfamily, UniqueSubfamily, + Fullname, Version, PostScript + }; + }; + + struct LangTagRecord + { + uint16 length, + offset; + }; + + struct FontNames + { + uint16 format, + count, + string_offset; + NameRecord name_record[1]; + }; + + + struct HorizontalMetric + { + uint16 advance_width; + int16 left_side_bearing; + }; + + + struct Glyph + { + int16 number_of_contours; + fword x_min, + y_min, + x_max, + y_max; + }; + + struct SimpleGlyph : Glyph + { + uint16 end_pts_of_contours[1]; + enum + { + OnCurve = 0x01, + XShort = 0x02, + YShort = 0x04, + Repeat = 0x08, + XIsSame = 0x10, + XIsPos = 0x10, + YIsSame = 0x20, + YIsPos = 0x20 + }; + }; + + struct CompoundGlyph : Glyph + { + uint16 flags, + glyph_index; + enum + { + Arg1Arg2Words = 0x01, + ArgsAreXYValues = 0x02, + RoundXYToGrid = 0x04, + HaveScale = 0x08, + MoreComponents = 0x20, + HaveXAndYScale = 0x40, + HaveTwoByTwo = 0x80, + HaveInstructions = 0x100, + UseMyMetrics = 0x200, + OverlapCompund = 0x400, + ScaledOffset = 0x800, + UnscaledOffset = 0x1000 + }; + }; + +#pragma pack(pop) +} // end of namespace Sfnt + +} // end of namespace TtfUtil +} // end of namespace graphite2 |