| /* cairo - a vector graphics library with display and print output |
| * |
| * Copyright © 2006 Red Hat, Inc |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it either under the terms of the GNU Lesser General Public |
| * License version 2.1 as published by the Free Software Foundation |
| * (the "LGPL") or, at your option, under the terms of the Mozilla |
| * Public License Version 1.1 (the "MPL"). If you do not alter this |
| * notice, a recipient may use your version of this file under either |
| * the MPL or the LGPL. |
| * |
| * You should have received a copy of the LGPL along with this library |
| * in the file COPYING-LGPL-2.1; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA |
| * You should have received a copy of the MPL along with this library |
| * in the file COPYING-MPL-1.1 |
| * |
| * The contents of this file are subject to the Mozilla Public License |
| * Version 1.1 (the "License"); you may not use this file except in |
| * compliance with the License. You may obtain a copy of the License at |
| * http://www.mozilla.org/MPL/ |
| * |
| * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY |
| * OF ANY KIND, either express or implied. See the LGPL or the MPL for |
| * the specific language governing rights and limitations. |
| * |
| * The Original Code is the cairo graphics library. |
| * |
| * The Initial Developer of the Original Code is Red Hat, Inc. |
| * |
| * Contributor(s): |
| * Kristian Høgsberg <krh@redhat.com> |
| * Adrian Johnson <ajohnson@redneon.com> |
| */ |
| |
| #ifndef CAIRO_TRUETYPE_SUBSET_PRIVATE_H |
| #define CAIRO_TRUETYPE_SUBSET_PRIVATE_H |
| |
| #include "cairoint.h" |
| |
| #if CAIRO_HAS_FONT_SUBSET |
| |
| /* The structs defined here should strictly follow the TrueType |
| * specification and not be padded. We use only 16-bit integer |
| * in their definition to guarantee that. The fields of type |
| * "FIXED" in the TT spec are broken into two *_1 and *_2 16-bit |
| * parts, and 64-bit members are broken into four. |
| * |
| * The test truetype-tables in the test suite makes sure that |
| * these tables have the right size. Please update that test |
| * if you add new tables/structs that should be packed. |
| */ |
| |
| #define MAKE_TT_TAG(a, b, c, d) (a<<24 | b<<16 | c<<8 | d) |
| #define TT_TAG_CFF MAKE_TT_TAG('C','F','F',' ') |
| #define TT_TAG_cmap MAKE_TT_TAG('c','m','a','p') |
| #define TT_TAG_cvt MAKE_TT_TAG('c','v','t',' ') |
| #define TT_TAG_fpgm MAKE_TT_TAG('f','p','g','m') |
| #define TT_TAG_glyf MAKE_TT_TAG('g','l','y','f') |
| #define TT_TAG_head MAKE_TT_TAG('h','e','a','d') |
| #define TT_TAG_hhea MAKE_TT_TAG('h','h','e','a') |
| #define TT_TAG_hmtx MAKE_TT_TAG('h','m','t','x') |
| #define TT_TAG_loca MAKE_TT_TAG('l','o','c','a') |
| #define TT_TAG_maxp MAKE_TT_TAG('m','a','x','p') |
| #define TT_TAG_name MAKE_TT_TAG('n','a','m','e') |
| #define TT_TAG_OS2 MAKE_TT_TAG('O','S','/','2') |
| #define TT_TAG_post MAKE_TT_TAG('p','o','s','t') |
| #define TT_TAG_prep MAKE_TT_TAG('p','r','e','p') |
| |
| /* All tt_* structs are big-endian */ |
| typedef struct _tt_cmap_index { |
| uint16_t platform; |
| uint16_t encoding; |
| uint32_t offset; |
| } tt_cmap_index_t; |
| |
| typedef struct _tt_cmap { |
| uint16_t version; |
| uint16_t num_tables; |
| tt_cmap_index_t index[1]; |
| } tt_cmap_t; |
| |
| typedef struct _segment_map { |
| uint16_t format; |
| uint16_t length; |
| uint16_t version; |
| uint16_t segCountX2; |
| uint16_t searchRange; |
| uint16_t entrySelector; |
| uint16_t rangeShift; |
| uint16_t endCount[1]; |
| } tt_segment_map_t; |
| |
| typedef struct _tt_head { |
| int16_t version_1; |
| int16_t version_2; |
| int16_t revision_1; |
| int16_t revision_2; |
| uint16_t checksum_1; |
| uint16_t checksum_2; |
| uint16_t magic_1; |
| uint16_t magic_2; |
| uint16_t flags; |
| uint16_t units_per_em; |
| int16_t created_1; |
| int16_t created_2; |
| int16_t created_3; |
| int16_t created_4; |
| int16_t modified_1; |
| int16_t modified_2; |
| int16_t modified_3; |
| int16_t modified_4; |
| int16_t x_min; /* FWORD */ |
| int16_t y_min; /* FWORD */ |
| int16_t x_max; /* FWORD */ |
| int16_t y_max; /* FWORD */ |
| uint16_t mac_style; |
| uint16_t lowest_rec_pppem; |
| int16_t font_direction_hint; |
| int16_t index_to_loc_format; |
| int16_t glyph_data_format; |
| } tt_head_t; |
| |
| typedef struct _tt_hhea { |
| int16_t version_1; |
| int16_t version_2; |
| int16_t ascender; /* FWORD */ |
| int16_t descender; /* FWORD */ |
| int16_t line_gap; /* FWORD */ |
| uint16_t advance_max_width; /* UFWORD */ |
| int16_t min_left_side_bearing; /* FWORD */ |
| int16_t min_right_side_bearing; /* FWORD */ |
| int16_t x_max_extent; /* FWORD */ |
| int16_t caret_slope_rise; |
| int16_t caret_slope_run; |
| int16_t reserved[5]; |
| int16_t metric_data_format; |
| uint16_t num_hmetrics; |
| } tt_hhea_t; |
| |
| typedef struct _tt_maxp { |
| int16_t version_1; |
| int16_t version_2; |
| uint16_t num_glyphs; |
| uint16_t max_points; |
| uint16_t max_contours; |
| uint16_t max_composite_points; |
| uint16_t max_composite_contours; |
| uint16_t max_zones; |
| uint16_t max_twilight_points; |
| uint16_t max_storage; |
| uint16_t max_function_defs; |
| uint16_t max_instruction_defs; |
| uint16_t max_stack_elements; |
| uint16_t max_size_of_instructions; |
| uint16_t max_component_elements; |
| uint16_t max_component_depth; |
| } tt_maxp_t; |
| |
| typedef struct _tt_name_record { |
| uint16_t platform; |
| uint16_t encoding; |
| uint16_t language; |
| uint16_t name; |
| uint16_t length; |
| uint16_t offset; |
| } tt_name_record_t; |
| |
| typedef struct _tt_name { |
| uint16_t format; |
| uint16_t num_records; |
| uint16_t strings_offset; |
| tt_name_record_t records[1]; |
| } tt_name_t; |
| |
| |
| /* bitmask for fsSelection field */ |
| #define TT_FS_SELECTION_ITALIC 1 |
| #define TT_FS_SELECTION_BOLD 32 |
| |
| /* _unused fields are defined in TT spec but not used by cairo */ |
| typedef struct _tt_os2 { |
| uint16_t _unused1[2]; |
| uint16_t usWeightClass; |
| uint16_t _unused2[28]; |
| uint16_t fsSelection; |
| uint16_t _unused3[11]; |
| } tt_os2_t; |
| |
| /* composite_glyph_t flags */ |
| #define TT_ARG_1_AND_2_ARE_WORDS 0x0001 |
| #define TT_WE_HAVE_A_SCALE 0x0008 |
| #define TT_MORE_COMPONENTS 0x0020 |
| #define TT_WE_HAVE_AN_X_AND_Y_SCALE 0x0040 |
| #define TT_WE_HAVE_A_TWO_BY_TWO 0x0080 |
| |
| typedef struct _tt_composite_glyph { |
| uint16_t flags; |
| uint16_t index; |
| uint16_t args[6]; /* 1 to 6 arguments depending on value of flags */ |
| } tt_composite_glyph_t; |
| |
| typedef struct _tt_glyph_data { |
| int16_t num_contours; |
| int8_t data[8]; |
| tt_composite_glyph_t glyph; |
| } tt_glyph_data_t; |
| |
| #endif /* CAIRO_HAS_FONT_SUBSET */ |
| |
| #endif /* CAIRO_TRUETYPE_SUBSET_PRIVATE_H */ |
