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Side by Side Diff: third_party/freetype/src/truetype/ttsubpix.c

Issue 815103002: Update freetype to 2.5.4. (Closed) Base URL: https://pdfium.googlesource.com/pdfium.git@master
Patch Set: Adjust GYP and GN Created 6 years ago
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1 /***************************************************************************/ 1 /***************************************************************************/
2 /* */ 2 /* */
3 /* ttsubpix.c */ 3 /* ttsubpix.c */
4 /* */ 4 /* */
5 /* TrueType Subpixel Hinting. */ 5 /* TrueType Subpixel Hinting. */
6 /* */ 6 /* */
7 /* Copyright 2010-2013 by */ 7 /* Copyright 2010-2013 by */
8 /* David Turner, Robert Wilhelm, and Werner Lemberg. */ 8 /* David Turner, Robert Wilhelm, and Werner Lemberg. */
9 /* */ 9 /* */
10 /* This file is part of the FreeType project, and may only be used, */ 10 /* This file is part of the FreeType project, and may only be used, */
11 /* modified, and distributed under the terms of the FreeType project */ 11 /* modified, and distributed under the terms of the FreeType project */
12 /* license, LICENSE.TXT. By continuing to use, modify, or distribute */ 12 /* license, LICENSE.TXT. By continuing to use, modify, or distribute */
13 /* this file you indicate that you have read the license and */ 13 /* this file you indicate that you have read the license and */
14 /* understand and accept it fully. */ 14 /* understand and accept it fully. */
15 /* */ 15 /* */
16 /***************************************************************************/ 16 /***************************************************************************/
17 17
18 #include "../../include/ft2build.h" 18 #include <ft2build.h>
19 #include "../../include/freetype/internal/ftdebug.h" 19 #include FT_INTERNAL_DEBUG_H
20 #include "../../include/freetype/internal/ftcalc.h" 20 #include FT_INTERNAL_CALC_H
21 #include "../../include/freetype/internal/ftstream.h" 21 #include FT_INTERNAL_STREAM_H
22 #include "../../include/freetype/internal/sfnt.h" 22 #include FT_INTERNAL_SFNT_H
23 #include "../../include/freetype/tttags.h" 23 #include FT_TRUETYPE_TAGS_H
24 #include "../../include/freetype/ftoutln.h" 24 #include FT_OUTLINE_H
25 #include "../../include/freetype/ftttdrv.h" 25 #include FT_TRUETYPE_DRIVER_H
26 26
27 #include "ttsubpix.h" 27 #include "ttsubpix.h"
28 28
29 29
30 #ifdef TT_CONFIG_OPTION_SUBPIXEL_HINTING 30 #ifdef TT_CONFIG_OPTION_SUBPIXEL_HINTING
31 31
32 /*************************************************************************/ 32 /*************************************************************************/
33 /* */ 33 /* */
34 /* These rules affect how the TT Interpreter does hinting, with the */ 34 /* These rules affect how the TT Interpreter does hinting, with the */
35 /* goal of doing subpixel hinting by (in general) ignoring x moves. */ 35 /* goal of doing subpixel hinting by (in general) ignoring x moves. */
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275 }, 275 },
276 }; 276 };
277 277
278 278
279 /* Force special legacy fixes for fonts. */ 279 /* Force special legacy fixes for fonts. */
280 #define COMPATIBILITY_MODE_RULES_SIZE 1 280 #define COMPATIBILITY_MODE_RULES_SIZE 1
281 281
282 const SPH_TweakRule COMPATIBILITY_MODE_Rules 282 const SPH_TweakRule COMPATIBILITY_MODE_Rules
283 [COMPATIBILITY_MODE_RULES_SIZE] = 283 [COMPATIBILITY_MODE_RULES_SIZE] =
284 { 284 {
285 { "-", 0, "", 0 }, 285 { "Verdana Clones", 0, "", 0 },
286 }; 286 };
287 287
288 288
289 /* Don't do subpixel (ignore_x_mode) hinting; do normal hinting. */ 289 /* Don't do subpixel (ignore_x_mode) hinting; do normal hinting. */
290 #define PIXEL_HINTING_RULES_SIZE 2 290 #define PIXEL_HINTING_RULES_SIZE 2
291 291
292 const SPH_TweakRule PIXEL_HINTING_Rules 292 const SPH_TweakRule PIXEL_HINTING_Rules
293 [PIXEL_HINTING_RULES_SIZE] = 293 [PIXEL_HINTING_RULES_SIZE] =
294 { 294 {
295 /* these characters are almost always safe */ 295 /* these characters are almost always safe */
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949 TWEAK_RULES_EXCEPTIONS( SKIP_NONPIXEL_Y_MOVES ); 949 TWEAK_RULES_EXCEPTIONS( SKIP_NONPIXEL_Y_MOVES );
950 950
951 TWEAK_RULES( ROUND_NONPIXEL_Y_MOVES ); 951 TWEAK_RULES( ROUND_NONPIXEL_Y_MOVES );
952 TWEAK_RULES_EXCEPTIONS( ROUND_NONPIXEL_Y_MOVES ); 952 TWEAK_RULES_EXCEPTIONS( ROUND_NONPIXEL_Y_MOVES );
953 953
954 if ( loader->exec->sph_tweak_flags & SPH_TWEAK_RASTERIZER_35 ) 954 if ( loader->exec->sph_tweak_flags & SPH_TWEAK_RASTERIZER_35 )
955 { 955 {
956 if ( loader->exec->rasterizer_version != TT_INTERPRETER_VERSION_35 ) 956 if ( loader->exec->rasterizer_version != TT_INTERPRETER_VERSION_35 )
957 { 957 {
958 loader->exec->rasterizer_version = TT_INTERPRETER_VERSION_35; 958 loader->exec->rasterizer_version = TT_INTERPRETER_VERSION_35;
959 loader->exec->size->cvt_ready = FALSE; 959 loader->exec->size->cvt_ready = -1;
960 960
961 tt_size_ready_bytecode( 961 tt_size_ready_bytecode(
962 loader->exec->size, 962 loader->exec->size,
963 FT_BOOL( loader->load_flags & FT_LOAD_PEDANTIC ) ); 963 FT_BOOL( loader->load_flags & FT_LOAD_PEDANTIC ) );
964 } 964 }
965 else 965 else
966 loader->exec->rasterizer_version = TT_INTERPRETER_VERSION_35; 966 loader->exec->rasterizer_version = TT_INTERPRETER_VERSION_35;
967 } 967 }
968 else 968 else
969 { 969 {
970 if ( loader->exec->rasterizer_version != 970 if ( loader->exec->rasterizer_version !=
971 SPH_OPTION_SET_RASTERIZER_VERSION ) 971 SPH_OPTION_SET_RASTERIZER_VERSION )
972 { 972 {
973 loader->exec->rasterizer_version = SPH_OPTION_SET_RASTERIZER_VERSION; 973 loader->exec->rasterizer_version = SPH_OPTION_SET_RASTERIZER_VERSION;
974 loader->exec->size->cvt_ready = FALSE; 974 loader->exec->size->cvt_ready = -1;
975 975
976 tt_size_ready_bytecode( 976 tt_size_ready_bytecode(
977 loader->exec->size, 977 loader->exec->size,
978 FT_BOOL( loader->load_flags & FT_LOAD_PEDANTIC ) ); 978 FT_BOOL( loader->load_flags & FT_LOAD_PEDANTIC ) );
979 } 979 }
980 else 980 else
981 loader->exec->rasterizer_version = SPH_OPTION_SET_RASTERIZER_VERSION; 981 loader->exec->rasterizer_version = SPH_OPTION_SET_RASTERIZER_VERSION;
982 } 982 }
983 983
984 if ( IS_HINTED( loader->load_flags ) ) 984 if ( IS_HINTED( loader->load_flags ) )
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1002 1002
1003 #else /* !TT_CONFIG_OPTION_SUBPIXEL_HINTING */ 1003 #else /* !TT_CONFIG_OPTION_SUBPIXEL_HINTING */
1004 1004
1005 /* ANSI C doesn't like empty source files */ 1005 /* ANSI C doesn't like empty source files */
1006 typedef int _tt_subpix_dummy; 1006 typedef int _tt_subpix_dummy;
1007 1007
1008 #endif /* !TT_CONFIG_OPTION_SUBPIXEL_HINTING */ 1008 #endif /* !TT_CONFIG_OPTION_SUBPIXEL_HINTING */
1009 1009
1010 1010
1011 /* END */ 1011 /* END */
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