| /* |
| * Copyright © 2018 Adobe Inc. |
| * |
| * This is part of HarfBuzz, a text shaping library. |
| * |
| * Permission is hereby granted, without written agreement and without |
| * license or royalty fees, to use, copy, modify, and distribute this |
| * software and its documentation for any purpose, provided that the |
| * above copyright notice and the following two paragraphs appear in |
| * all copies of this software. |
| * |
| * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR |
| * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES |
| * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN |
| * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH |
| * DAMAGE. |
| * |
| * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, |
| * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND |
| * FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS |
| * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO |
| * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS. |
| * |
| * Adobe Author(s): Michiharu Ariza |
| */ |
| |
| #include "hb-ot-cff1-table.hh" |
| #include "hb-cff1-interp-cs.hh" |
| |
| using namespace CFF; |
| |
| /* SID to code */ |
| static const uint8_t standard_encoding [] = |
| { |
| 0, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, |
| 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, |
| 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, |
| 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, |
| 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, |
| 111, 112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126, |
| 161, 162, 163, 164, 165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175, 177, |
| 178, 179, 180, 182, 183, 184, 185, 186, 187, 188, 189, 191, 193, 194, 195, 196, |
| 197, 198, 199, 200, 202, 203, 205, 206, 207, 208, 225, 227, 232, 233, 234, 235, |
| 241, 245, 248, 249, 250, 251 |
| }; |
| |
| /* SID to code */ |
| static const uint8_t expert_encoding [] = |
| { |
| 0, 32, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 44, 45, 46, |
| 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 58, 59, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 47, 0, 0, 0, 0, 0, 0, 0, 0, 0, 87, 88, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 201, 0, 0, 0, 0, 189, 0, 0, 188, 0, |
| 0, 0, 0, 190, 202, 0, 0, 0, 0, 203, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 33, 34, 36, 37, 38, 39, 40, 41, 42, 43, 48, |
| 49, 50, 51, 52, 53, 54, 55, 56, 57, 60, 61, 62, 63, 65, 66, 67, |
| 68, 69, 73, 76, 77, 78, 79, 82, 83, 84, 86, 89, 90, 91, 93, 94, |
| 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, |
| 111, 112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126, |
| 161, 162, 163, 166, 167, 168, 169, 170, 172, 175, 178, 179, 182, 183, 184, 191, |
| 192, 193, 194, 195, 196, 197, 200, 204, 205, 206, 207, 208, 209, 210, 211, 212, |
| 213, 214, 215, 216, 217, 218, 219, 220, 221, 222, 223, 224, 225, 226, 227, 228, |
| 229, 230, 231, 232, 233, 234, 235, 236, 237, 238, 239, 240, 241, 242, 243, 244, |
| 245, 246, 247, 248, 249, 250, 251, 252, 253, 254, 255 |
| }; |
| |
| /* glyph ID to SID */ |
| static const uint16_t expert_charset [] = |
| { |
| 0, 1, 229, 230, 231, 232, 233, 234, 235, 236, 237, 238, 13, 14, 15, 99, |
| 239, 240, 241, 242, 243, 244, 245, 246, 247, 248, 27, 28, 249, 250, 251, 252, |
| 253, 254, 255, 256, 257, 258, 259, 260, 261, 262, 263, 264, 265, 266, 109, 110, |
| 267, 268, 269, 270, 271, 272, 273, 274, 275, 276, 277, 278, 279, 280, 281, 282, |
| 283, 284, 285, 286, 287, 288, 289, 290, 291, 292, 293, 294, 295, 296, 297, 298, |
| 299, 300, 301, 302, 303, 304, 305, 306, 307, 308, 309, 310, 311, 312, 313, 314, |
| 315, 316, 317, 318, 158, 155, 163, 319, 320, 321, 322, 323, 324, 325, 326, 150, |
| 164, 169, 327, 328, 329, 330, 331, 332, 333, 334, 335, 336, 337, 338, 339, 340, |
| 341, 342, 343, 344, 345, 346, 347, 348, 349, 350, 351, 352, 353, 354, 355, 356, |
| 357, 358, 359, 360, 361, 362, 363, 364, 365, 366, 367, 368, 369, 370, 371, 372, |
| 373, 374, 375, 376, 377, 378 |
| }; |
| |
| /* glyph ID to SID */ |
| static const uint16_t expert_subset_charset [] = |
| { |
| 0, 1, 231, 232, 235, 236, 237, 238, 13, 14, 15, 99, 239, 240, 241, 242, |
| 243, 244, 245, 246, 247, 248, 27, 28, 249, 250, 251, 253, 254, 255, 256, 257, |
| 258, 259, 260, 261, 262, 263, 264, 265, 266, 109, 110, 267, 268, 269, 270, 272, |
| 300, 301, 302, 305, 314, 315, 158, 155, 163, 320, 321, 322, 323, 324, 325, 326, |
| 150, 164, 169, 327, 328, 329, 330, 331, 332, 333, 334, 335, 336, 337, 338, 339, |
| 340, 341, 342, 343, 344, 345, 346 |
| }; |
| |
| hb_codepoint_t OT::cff1::lookup_standard_encoding (hb_codepoint_t sid) |
| { |
| if (sid < ARRAY_LENGTH (standard_encoding)) |
| return (hb_codepoint_t)standard_encoding[sid]; |
| else |
| return 0; |
| } |
| |
| hb_codepoint_t OT::cff1::lookup_expert_encoding (hb_codepoint_t sid) |
| { |
| if (sid < ARRAY_LENGTH (expert_encoding)) |
| return (hb_codepoint_t)expert_encoding[sid]; |
| else |
| return 0; |
| } |
| |
| hb_codepoint_t OT::cff1::lookup_expert_charset (hb_codepoint_t glyph) |
| { |
| if (glyph < ARRAY_LENGTH (expert_charset)) |
| return (hb_codepoint_t)expert_charset[glyph]; |
| else |
| return 0; |
| } |
| |
| hb_codepoint_t OT::cff1::lookup_expert_subset_charset (hb_codepoint_t glyph) |
| { |
| if (glyph < ARRAY_LENGTH (expert_subset_charset)) |
| return (hb_codepoint_t)expert_subset_charset[glyph]; |
| else |
| return 0; |
| } |
| |
| struct ExtentsParam |
| { |
| inline void init (void) |
| { |
| path_open = false; |
| min_x.set_int (0x7FFFFFFF); |
| min_y.set_int (0x7FFFFFFF); |
| max_x.set_int (-0x80000000); |
| max_y.set_int (-0x80000000); |
| } |
| |
| inline void start_path (void) { path_open = true; } |
| inline void end_path (void) { path_open = false; } |
| inline bool is_path_open (void) const { return path_open; } |
| |
| inline void update_bounds (const Point &pt) |
| { |
| if (pt.x < min_x) min_x = pt.x; |
| if (pt.x > max_x) max_x = pt.x; |
| if (pt.y < min_y) min_y = pt.y; |
| if (pt.y > max_y) max_y = pt.y; |
| } |
| |
| bool path_open; |
| Number min_x; |
| Number min_y; |
| Number max_x; |
| Number max_y; |
| }; |
| |
| struct CFF1PathProcs_Extents : PathProcs<CFF1PathProcs_Extents, CFF1CSInterpEnv, ExtentsParam> |
| { |
| static inline void moveto (CFF1CSInterpEnv &env, ExtentsParam& param, const Point &pt) |
| { |
| param.end_path (); |
| env.moveto (pt); |
| } |
| |
| static inline void line (CFF1CSInterpEnv &env, ExtentsParam& param, const Point &pt1) |
| { |
| if (!param.is_path_open ()) |
| { |
| param.start_path (); |
| param.update_bounds (env.get_pt ()); |
| } |
| env.moveto (pt1); |
| param.update_bounds (env.get_pt ()); |
| } |
| |
| static inline void curve (CFF1CSInterpEnv &env, ExtentsParam& param, const Point &pt1, const Point &pt2, const Point &pt3) |
| { |
| if (!param.is_path_open ()) |
| { |
| param.start_path (); |
| param.update_bounds (env.get_pt ()); |
| } |
| /* include control points */ |
| param.update_bounds (pt1); |
| param.update_bounds (pt2); |
| env.moveto (pt3); |
| param.update_bounds (env.get_pt ()); |
| } |
| }; |
| |
| struct CFF1CSOpSet_Extents : CFF1CSOpSet<CFF1CSOpSet_Extents, ExtentsParam, CFF1PathProcs_Extents> {}; |
| |
| bool OT::cff1::accelerator_t::get_extents (hb_codepoint_t glyph, hb_glyph_extents_t *extents) const |
| { |
| if (unlikely (!is_valid () || (glyph >= num_glyphs))) return false; |
| |
| unsigned int fd = fdSelect->get_fd (glyph); |
| CFF1CSInterpreter<CFF1CSOpSet_Extents, ExtentsParam> interp; |
| const ByteStr str = (*charStrings)[glyph]; |
| interp.env.init (str, *this, fd); |
| ExtentsParam param; |
| param.init (); |
| if (unlikely (!interp.interpret (param))) return false; |
| |
| if (param.min_x >= param.max_x) |
| { |
| extents->width = 0; |
| extents->x_bearing = 0; |
| } |
| else |
| { |
| extents->x_bearing = (int32_t)param.min_x.floor (); |
| extents->width = (int32_t)param.max_x.ceil () - extents->x_bearing; |
| } |
| if (param.min_y >= param.max_y) |
| { |
| extents->height = 0; |
| extents->y_bearing = 0; |
| } |
| else |
| { |
| extents->y_bearing = (int32_t)param.max_y.ceil (); |
| extents->height = (int32_t)param.min_y.floor () - extents->y_bearing; |
| } |
| |
| return true; |
| } |
