kc3-lang/freetype/src/truetype/ttinterp.c

src/truetype/ttinterp.c

Log

Author Commit Date CI Message
Werner Lemberg 4a19a53d 2020-02-04T13:37:19 * src/truetype/ttinterp.c (TT_RunIns): Adjust loop counter (#57732). The font that exceeds the old limit is Constantine, version 1.001.
Werner Lemberg e5038be7 2020-01-19T17:05:19 Update all copyright notices.
Dominik Röttsches 10d8de75 2019-12-30T11:22:04 [truetype] Fix UBSan warning on offset to nullptr (#57501). * src/truetype/ttinterp.c (Ins_CALL): Fail if `exc->FDefs' is null.
Dominik Röttsches 8cee1dde 2019-12-17T14:12:38 Fix more UBSan warnings on adding offset to nullptr (#57432). * src/truetype/ttinterp.c (Ins_LOOPCALL), src/psaux/psft.c (cf2_initLocalRegionBuffer): Use `FT_OFFSET'.
Werner Lemberg 7e1b39f6 2019-12-16T11:07:58 [truetype] Fix UBSan warnings on adding offsets to nullptr. Reported as https://bugs.chromium.org/p/chromium/issues/detail?id=1032152 * src/truetype/ttinterp.c (Ins_FDEF, Ins_IDEF): Use `FT_OFFSET'.
Werner Lemberg 0c14a3ad 2019-12-14T00:04:01 [truetype] Fix integer overflow. Reported as https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=19305 * src/truetype/ttinterp.c (Ins_MIRP): Use `ADD_LONG'.
Werner Lemberg dfc9a049 2019-12-05T08:44:30 * src/truetype/ttinterp.c (TT_RunIns): Use `FT_OFFSET'. Reported as https://bugs.chromium.org/p/chromium/issues/detail?id=1030614
Werner Lemberg 551bd3a9 2019-12-03T11:52:48 More nullptr offset UBSan warnings (#57331, #57347). * src/autofit/afcjk.c (af_cjk_hints_compute_segments), src/psaux/psft.c (cf2_getSeacComponent), src/truetype/ttinterp.c (Ins_UNKNOWN): Use `FT_OFFSET'.
Werner Lemberg c3be6f06 2019-05-21T11:23:36 src/truetype/ttinterp.c: Give order of operations for some instructions.
Werner Lemberg 262fce44 2019-05-21T09:58:51 * src/truetype/ttinterp.c (opcode_name): Improve mnemonics.
Werner Lemberg 75859970 2019-02-23T10:07:09 Update all copyright notices.
Armin Hasitzka b77826e1 2019-02-21T10:23:15 Triage 8ea854bfe92443706d55656072f891ec8f2cb3c2.
Armin Hasitzka 8ea854bf 2019-02-21T10:14:57 [truetype] Mask numeric overflows. * src/truetype/ttinterp.c (Move_CVT, Move_CVT_Stretched, Ins_MIRP): Mask numeric overflows. Reported as https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=11681 https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=11734
Werner Lemberg f686ad46 2019-01-22T20:31:44 Update copyright years.
Werner Lemberg 2b4e61e4 2018-12-12T09:36:39 Minor documentation fixes.
Werner Lemberg a0dd16fb 2018-08-15T18:13:17 Don't use `trace_' prefix for FT_COMPONENT arguments. * include/freetype/internal/ftdebug.h (FT_TRACE_COMP, FT_TRACE_COMP_): New auxiliary macros to add `trace_' prefix. (FT_TRACE): Use `FT_TRACE_COMP'. */* (FT_COMPONENT): Updated.
Werner Lemberg 1d7b034c 2018-08-14T15:48:17 Use formatting string in FT_TRACEX calls for non-simple arguments. * src/psaux/cffdecode.c (cff_decoder_parse_charstrings) <cff_op_hstem, cff_op_hintmask, cff_op_hlineto, cff_op_vhcurveto>: Do it. * src/psaux/pshints.c (cf2_hintmap_build): Ditto. * src/psaux/psintrp.c (cf2_interpT2CharString) <cf2_cmdHSTEM, cf2_cmdVSTEM, cf2_cmdHLINETO, cf2_cmdRRCURVETO, cf2_cmdCALLSUBR, cf2_escHSTEM3, cf2_cmdHINTMASK, cf2_cmdHVCURVETO>: Ditto. * src/truetype/ttinterp.c (TT_RunIns): Ditto.
Werner Lemberg ced9c311 2018-08-04T07:03:57 Ditto.
Werner Lemberg be81acc4 2018-08-04T07:01:04 * src/truetype/ttinterp.c (opcode_name): Fix typos.
Hin-Tak Leung 71e29fe1 2018-07-24T10:04:23 [truetype] Match ttdebug's naming of instruction mnemonics. * src/truetype/ttinterp.c: The form used in ttdebug, "MDRP[G,B,W,?]", etc., is slightly more readable than "MDRP[00,01,02,03]".
Nikhil Ramakrishnan 78d85b9c 2018-06-04T18:42:29 Restore missing comment lines and other minor fixes
Werner Lemberg 9ac9060d 2018-06-03T09:01:17 [GSoC] src/*.*: Convert block comments to `light' style. This monster commit was created by applying Nikhil's scripts `docconverter.py' and `markify.py' to all C header and source files, followed up by minor manual clean-up. No change in functionality, of course. I used commit f7419907bc6044b9b7057f9789866426c804ba82 from https://github.com/nikramakrishnan/freetype-docs.git.
Werner Lemberg 67994e82 2018-06-02T19:51:03 * src/truetype/ttinterp.c (Ins_MIRP): Use SUB_LONG; avoid FT_ABS. Reported as https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=8706
Werner Lemberg 2a159782 2018-04-17T12:25:17 [truetype] Integer overflow issues. Reported as https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=7739 * src/truetype/ttinterp.c (Ins_CEILING): Use FT_PIX_CEIL_LONG.
Werner Lemberg 70ac167c 2018-04-16T10:39:10 [truetype] Integer overflow issues. Reported as https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=7718 * src/truetype/ttinterp.c (Ins_MIRP): Use ADD_LONG.
Werner Lemberg 235b1e2f 2018-04-15T21:55:04 [truetype]: Limit `SLOOP' bytecode argument to 16 bits. This fixes https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=7707 * src/truetype/ttinterp.c (Ins_SLOOP): Do it.
Werner Lemberg 827ca3bc 2018-04-14T07:20:31 [truetype] Integer overflow issues. Reported as https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=7652 * src/truetype/ttinterp.c (Ins_MDAP): Use SUB_LONG.
Werner Lemberg bd9400bd 2018-04-09T21:28:37 [truetype] Integer overflow issues. Reported as https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=7453 * src/truetype/ttinterp.c (Round_Super, Round_Super_45): Use ADD_LONG and SUB_LONG.
Werner Lemberg efd13c5d 2018-03-01T22:17:54 * src/truetype/ttinterp.c (TT_RunIns): Fix tracing arguments.
Werner Lemberg 4a03f174 2018-02-06T02:23:19 [truetype] Integer overflow issues. Reported as https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=6027 * src/truetype/ttinterp.c (Ins_MSIRP, Ins_MIAP, Ins_MIRP): Use SUB_LONG; avoid FT_ABS.
Werner Lemberg 29c75928 2018-01-27T14:43:43 * src/truetype/ttinterp.c (Ins_GETVARIATION): Avoid NULL reference. Reported as https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=5736
Werner Lemberg 0a0c2256 2018-01-02T09:33:57 Update copyright year.
Werner Lemberg 98ba0c4a 2017-12-08T18:38:41 New `ftdriver.h' file, covering all driver modules. This reduces redundancy and increases synergy; it also reduces the number of header files. * include/freetype/config/ftheader.h (FT_DRIVER_H): New macro. (FT_AUTOHINTER_H, FT_CFF_DRIVER_H, FT_TRUETYPE_DRIVER_H, FT_PCF_DRIVER_H, FT_TYPE1_DRIVER_H): Make them aliases to FT_DRIVER_H. * include/freetype/ftautoh.h, include/freetype/ftcffdrv.h, include/freetype/ftpcfdrv.h, include/freetype/ftt1drv.h, include/freetype/ftttdrv.h: Replaced with... * include/freetype/ftdriver.h: ...this new file. (FT_CFF_HINTING_ADOBE, FT_T1_HINTING_ADOBE): Renamed to... (FT_HINTING_ADOBE): ... this new macro. (FT_CFF_HINTING_FREETYPE, FT_T1_HINTING_FREETYPE): Renamed to... (FT_HINTING_FREETYPE): ... this new macro. * src/*/*: Updated accordingly.
Werner Lemberg 71fecc53 2017-12-05T12:06:29 Improve tracing messages by using singular and plural forms. * src/*/*.c: Implement it.
Ben Wagner c06b9cf5 2017-09-28T19:08:38 [truetype] Really, really fix #52082. * src/truetype/ttinterp.c (Ins_MDRP): Correct conditional.
Ben Wagner 63be40bc 2017-09-23T00:44:59 [truetype] Really fix #52082. * src/truetype/ttinterp.c (Ins_MDRP): Correct conditional.
Werner Lemberg 6d04bd99 2017-09-21T21:22:51 [truetype] Integer overflow (#52082). * src/truetype/ttinterp.c (Ins_MDRP): Avoid FT_ABS.
Werner Lemberg eaa9adf3 2017-09-20T08:00:05 [truetype] Integer overflows. Changes triggered by https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=3429 * src/truetype/ttinterp.c (Ins_SHPIX, Ins_DELTAP): Use NEG_LONG. (Ins_MIAP): Use SUB_LONG.
Werner Lemberg 0aca17cf 2017-08-22T08:25:14 [truetype] Integer overflow. Changes triggered by https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=3107 * src/truetype/ttinterp.c (Ins_MDRP, Ins_MIRP, Ins_ALIGNPTS): Use NEG_LONG.
Werner Lemberg 17196b7c 2017-08-05T18:58:34 [truetype] Integer overflow. Reported as https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2868 * src/truetype/ttinterp.c (Ins_ALIGNRP): Use NEG_LONG.
Nikolaus Waxweiler 7f44c2db 2017-08-03T06:15:30 [truetype] Do not set any ClearType flags in v40 monochrome mode. This fixes weird behavior of instructions that resulted in rendering differences between v35 and v40 in monochrome mode, e.g., in `timesbi.ttf'. * src/truetype/ttinterp.c (Ins_GETINFO) [TT_SUPPORT_SUBPIXEL_HINTING_MINIMAL]: Check `subpixel_hinting_lean'.
Werner Lemberg ca799e9b 2017-07-03T06:27:52 [truetype] Integer overflow. Reported as https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2455 * src/truetype/ttinterp.c (Ins_SCFS): Use SUB_LONG.
Werner Lemberg dde8f5ab 2017-06-27T06:16:04 [truetype] Integer overflows. Reported as https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2384 https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2391 * src/base/ftcalc.c (FT_MulDiv, FT_MulDiv_No_Round, FT_DivFix): Use NEG_LONG. * src/truetype/ttinterp.c (Ins_SxVTL): Use NEG_LONG.
Werner Lemberg b27cef27 2017-06-24T20:17:46 [truetype] Integer overflows. Reported as https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2364 * src/truetype/ttinterp.c (Ins_ISECT): Use NEG_LONG.
Werner Lemberg 298e2ea5 2017-06-22T11:52:43 [cff, truetype] Integer overflows. Reported as https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2323 https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2328 * src/cff/cf2blues.c (cf2_blues_capture): Use ADD_INT32 and SUB_INT32. * src/truetype/ttinterp.c (Ins_SDPVTL): Use SUB_LONG and NEG_LONG.
Werner Lemberg 8c763fb1 2017-06-20T07:49:52 [cff, truetype] Integer overflows. Reported as https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2300 https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2313 * src/cff/cf2hints.c (cf2_hintmap_adjustHints): Use ADD_INT32. * src/truetype/ttinterp.c (Ins_ABS): Avoid FT_ABS.
Werner Lemberg 4dc00cf5 2017-06-16T13:33:09 [truetype] Integer overflows. Reported as https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2270 https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2278 * src/truetype/ttinterp.c (Ins_MDRP, _iup_worker_interpolate): Use ADD_LONG and SUB_LONG.
Werner Lemberg 5c402d97 2017-06-13T06:56:48 [cff, truetype] Integer overflows. Reported as https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2216 https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2218 * src/cff/cf2fixed.h (cf2_fixedAbs): Use NEG_INT32. * src/truetype/ttinterp.c (Ins_IP): Use SUB_LONG.
Werner Lemberg 9038837e 2017-06-09T20:42:46 [cff, truetype] Integer overflows. Reported as https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2144 https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2151 https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2153 https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2173 https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2186 * src/cff/cf2blues.c (cf2_blues_init): Use SUB_INT32. * src/truetype/ttinterp.c (Round_None, Round_To_Grid, Round_To_Half_Grid, Round_Down_To_Grid, Round_Up_To_Grid, Round_To_Double_Grid, Round_Super, Round_Super_45): Use ADD_LONG, SUB_LONG, NEG_LONG, FT_PIX_ROUND_LONG, FT_PIX_CEIL_LONG, FT_PAD_ROUND_LONG (Ins_SxVTL, Ins_MIRP): Use SUB_LONG. (_iup_worker_shift): Use SUB_LONG and ADD_LONG.
Werner Lemberg dcd8de27 2017-06-09T11:21:58 */*: Remove `OVERFLOW_' prefix. This increases readability.
Werner Lemberg 7bffeacd 2017-06-07T17:08:01 [cff, truetype] Integer overflows. Reported as https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2133 https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2137 * src/cff/cf2hints.c (cf2_hint_init): Use OVERFLOW_SUB_INT32. * src/truetype/ttinterp.c (PROJECT, DUALPROJ): Use OVERFLOW_SUB_LONG.
Werner Lemberg 9fa8a299 2017-06-04T20:43:08 [cff, truetype] Integer overflows. Reported as https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2075 https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2088 * src/cff/cf2font.c (cf2_font_setup): Use OVERFLOW_MUL_INT32. * src/truetype/ttinterp.c (Ins_ISECT): Use OVERFLOW_MUL_LONG, OVERFLOW_ADD_LONG, and OVERFLOW_SUB_LONG.
Werner Lemberg addb2ddd 2017-06-03T21:05:42 [base, cff, truetype] Integer overflows. Reported as https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2060 https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2062 https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2063 https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2068 * src/base/ftobjs.c (ft_glyphslot_grid_fit_metrics): Use OVERFLOW_ADD_LONG and OVERFLOW_SUB_LONG. * src/cff/cf2blues.c (cf2_blues_capture), src/cff/cf2hints.c (cf2_hintmap_adjustHints): Use OVERFLOW_SUB_INT32. * src/truetype/ttgload.c (compute_glyph_metrics): User OVERFLOW_SUB_LONG. * src/truetype/ttinterp.c (Direct_Move, Direct_Move_Orig, Direct_Move_X, Direct_Move_Y, Direct_Move_Orig_X, Direct_Move_Orig_Y, Move_Zp2_Point, Ins_MSIRP): Use OVERFLOW_ADD_LONG and OVERFLOW_SUB_LONG.
Werner Lemberg 1ea34322 2017-06-03T06:52:13 [cff, truetype] Integer overflows. Reported as https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2047 https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2057 * src/cff/cf2hints.c (cf2_hintmap_map): Use OVERFLOW_SUB_INT32. * src/truetype/ttinterp.c (Ins_ADD): Use OVERFLOW_ADD_LONG. (Ins_SUB): Use OVERFLOW_SUB_LONG. (Ins_NEG): Use NEG_LONG.
Werner Lemberg 8d435c46 2017-06-01T07:09:44 * src/truetype/ttinterp.c (TT_RunIns): Adjust loop counter again. Problem reported by Marek Kašík <mkasik@redhat.com>. The problematic font that exceeds the old limit is Padauk-Bold, version 3.002, containing bytecode generated by a buggy version of ttfautohint.
Nikolaus Waxweiler a0455468 2017-05-20T07:28:46 [truetype] Always use interpreter v35 for B/W rendering (#51051). * src/truetype/ttgload.c (tt_loader_init) [TT_SUPPORT_SUBPIXEL_HINTING_MINIMAL]: Adjust `subpixel_hinting_lean', `grayscale_cleartype', and `vertical_lcd_lean' accordingly. * src/truetype/ttinterp.c (Ins_GETINFO): Updated. (TT_RunIns): Update `backward_compatibility' flag.
Werner Lemberg 8cd31eb7 2017-05-03T23:54:29 */*: s/backwards compatibility/backward compatibility/.
Werner Lemberg 5f18d867 2017-04-22T23:02:21 [truetype] Do linear scaling for FT_LOAD_NO_HINTING (#50470). * src/truetype/ttobs.h (TT_SizeRec): Add field `hinted_metrics' to hold hinted metrics. Make `metrics' a pointer so that `tt_glyph_load' can easily switch between metrics. * src/truetype/ttdriver.c (tt_size_request): Updated. (tt_glyph_load): Use top-level metrics if FT_LOAD_NO_HINTING is used. * src/truetype/ttgload.c (TT_Hint_Glyph, TT_Process_Simple_Glyph, TT_Process_Composite_Component, load_truetype_glyph, compute_glyph_metrics, TT_Load_Glyph): Updated. * src/truetype/ttinterp.c (TT_Load_Context): Updated. * src/truetype/ttobjs.c (tt_size_reset): Updated. * src/truetype/ttsubpix.c (sph_set_tweaks): Updated.
Werner Lemberg 093c1820 2017-04-03T11:37:33 [truetype] Avoid reexecution of `fpgm' and `prep' in case of error. Reported as https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=981 * include/freetype/fterrdef.h (FT_Err_DEF_In_Glyf_Bytecode): New error code. * src/truetype/ttinterp.c (Ins_FDEF, Ins_IDEF): Prohibit execution of these two opcodes in `glyf' bytecode. (TT_RunIns): Don't enforce reexecution of `fpgm' and `prep' bytecode in case of error since function tables can no longer be modified (due to the changes in `Ins_FDEF' and `Ins_IDEF'). This change can enormously speed up handling of broken fonts.
Werner Lemberg 3e79254a 2017-03-18T10:06:15 * src/truetype/ttinterp.c (TT_RunIns): Adjust loop counter (#50573). The problematic font that exceeds the old limit is Lato-Regular, version 2.007, containing bytecode generated by a buggy version of ttfautohint.
Werner Lemberg 13fa85a2 2017-03-18T09:42:58 [truetype] Another limitation for bytecode loop count maximum. Reported as https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=900 * src/truetype/ttinterp.c (TT_RunIns): Limit `loopcall_counter_max' by number of glyphs also.
Werner Lemberg 9931175d 2017-03-18T07:06:49 Improve `make multi'. * src/autofit/aflatin2.c: Guard file with FT_OPTION_AUTOFIT2. * src/base/ftmac.c: Guard more parts of the file with FT_MACINTOSH. * src/psaux/afmparse.c: Guard file with T1_CONFIG_OPTION_NO_AFM. * src/sfnt/pngshim.c: Guard file with TT_CONFIG_OPTION_EMBEDDED_BITMAPS also. * src/sfnt/ttbdf.c: Avoid empty source file. * src/sfnt/ttpost.c: Guard file with TT_CONFIG_OPTION_POSTSCRIPT_NAMES. * src/sfnt/ttsbit.c: Guard file with TT_CONFIG_OPTION_EMBEDDED_BITMAPS. * src/truetype/ttgxvar.c, src/truetype/ttinterp.c: Avoid empty source file. * src/truetype/ttsubpix.c: Guard file with TT_USE_BYTECODE_INTERPRETER also. * src/type1/t1afm.c: Guard file with T1_CONFIG_OPTION_NO_AFM. * src/autofit/autofit.c, src/base/ftbase.c, src/cache/ftcache.c, src/cff/cff.c, src/cid/type1cid.c, src/gxvalid/gxvalid.c, src/pcf/pcf.c, src/pfr/pfr.c, src/psaux/psaux.c, src/pshinter/pshinter.c, src/psnames/psnames.c, src/raster/raster.c, src/sfnt/sfnt.c, src/smooth/smooth.c, src/truetype/truetype.c, src/type1/type1.c, src/type42/type42.c: Remove conditionals; sort entries.
Werner Lemberg 43061d6a 2017-01-20T10:16:38 * src/truetype/ttinterp.c (TT_RunIns): Adjust loop detector limits.
Alexei Podtelezhnikov 236bbdbe 2017-01-18T23:12:31 Typos.
Werner Lemberg 563ae780 2017-01-04T20:16:34 Update copyright year.
Werner Lemberg f80c4473 2016-12-26T23:57:45 Replace `++foo' and `--foo' with `foo++' and `foo--', resp.
Werner Lemberg 4441f7b2 2016-12-26T17:08:17 Replace `foo == NULL' and `foo != NULL' with `!foo' and `foo', resp. Other minor formatting.
Werner Lemberg 37c72f66 2016-12-25T22:55:25 Minor formatting.
Werner Lemberg 328d6844 2016-10-29T00:18:56 [truetype] Remove clang warnings. * src/truetype/ttinterp.h (TT_ExecContextRec): Using `FT_ULong' for loop counter handling. * src/truetype/ttinterp.c: Updated. (Ins_SCANTYPE): Use signed constant. (TT_RunIns): Ensure `num_twilight_points' is 16bit.
Werner Lemberg 5081674c 2016-10-22T19:16:08 [truetype] Fix SCANTYPE instruction (#49394). * src/truetype/ttinterp.c (Ins_SCANTYPE): Only use lower 16bits.
Werner Lemberg 2ecf89b4 2016-09-28T19:06:21 */*: s/FT_MEM_ZERO/FT_ZERO/ where appropriate.
Werner Lemberg a3e2c832 2016-09-27T21:42:02 [truetype] Trace number of executed opcodes. * src/truetype/ttinterp.c (TT_RunIns): Implement it.
Werner Lemberg 0d945929 2016-09-27T08:44:31 [truetype] Introduce dynamic limits for some bytecode opcodes. This speeds up FreeType's handling of malformed fonts. * src/truetype/ttinterp.c (TT_RunIns): Set up limits for the number of twilight points, the total number of negative jumps, and the total number of loops in LOOPCALL opcodes. The values are based on the number of points and entries in the CVT table. (Ins_JMPR): Test negative jump counter. (Ins_LOOPCALL): Test loopcall counter. * src/truetype/ttinterp.h (TT_ExecContext): Updated. * docs/CHANGES: Updated.
Werner Lemberg b1e7b68e 2016-09-08T08:56:34 * src/truetype/ttinterp.c: Include `ttgxvar.h'. This fixes the `multi' build.
Werner Lemberg a4c2a311 2016-08-22T19:32:34 [truetype] Fix `MPS' instruction. According to Greg Hitchcock, MPS in DWrite really returns the point size. * src/truetype/ttobjs.h (TT_SizeRec): Add `point_size' member. * src/truetype/ttdriver.c (tt_size_request): Set `point_size'. * src/truetype/ttinterp.h (TT_ExecContextRec): Add `pointSize' member. * src/truetype/ttinterp.c (TT_Load_Context): Updated. (Ins_MPS): Fix instruction.
Alexei Podtelezhnikov 125f2b63 2016-08-11T23:40:05 * src/truetype/ttinterp.c (Pop_Push_Count): Revert changes.
Alexei Podtelezhnikov 49d474f6 2016-08-11T23:03:09 * src/truetype/ttinterp.c (TT_RunIns): Minor and formatting.
Alexei Podtelezhnikov dce554b1 2016-08-11T07:29:19 * src/truetype/ttinterp.c (Pop_Push_Count): Fix some entries.
Werner Lemberg 053943a7 2016-07-30T00:27:48 [truetype] Comment.
Hin-Tak Leung 3a528bbe 2016-07-22T06:59:36 [truetype] Record the end of IDEFs. To match the logic in FDEF. The value of the end is only used for bound-checking in `Ins_JMPR', so it may not have been obvious that it was not recorded. Tested (as part of Font Validator 2.0) all the fonts on Fedora and did not see any change. * src/truetype/ttinterp.c (Ins_IDEF): Updated.
Werner Lemberg a3b70d76 2016-07-18T06:23:36 [truetype] Make GETDATA work only for GX fonts. * src/truetype/ttinterp.c (opcode_name): Updated. (Ins_GETDATA): Only define for `TT_CONFIG_OPTION_GX_VAR_SUPPORT'. (TT_RunIns): Updated.
Werner Lemberg 8c93013c 2016-07-17T22:40:31 [truetype] Add support for Apple's GETDATA[], opcode 0x92 bytecode instruction. It always returns 17, and we have absolutely no idea what it is good for... * src/truetype/ttinterp.c (Pop_Push_Count, opcode_name): Updated. (Ins_GETDATA): New function. (TT_RunIns): Add it.
Werner Lemberg e0843609 2016-07-16T18:46:28 [truetype] Add bytecode support for GX variation fonts. This commit implements undocumented (but confirmed) stuff from Apple's old bytecode engine. GETVARIATION[], opcode 0x91 This opcode pushes normalized variation coordinates for all axes onto the stack (in 2.14 format). Coordinate of first axis gets pushed first. GETINFO[], selector bit 3 If GX variation support is enabled, bit 10 of the result is set to 1. * src/truetype/ttinterp.c: Include FT_MULTIPLE_MASTERS_H. (opcode_name) [TT_CONFIG_OPTION_GX_VAR_SUPPORT]: Updated. (Ins_GETINFO) [TT_CONFIG_OPTION_GX_VAR_SUPPORT]: Handle selector bit 3, checking support for variation glyph hinting. (Ins_GETVARIATION) [TT_CONFIG_OPTION_GX_VAR_SUPPORT]: New function to implement opcode 0x91. (TT_RunIns) [TT_CONFIG_OPTION_GX_VAR_SUPPORT]: Handle opcode 0x91.
Werner Lemberg 32a32062 2016-07-16T16:39:26 [truetype] Fix GETINFO bytecode instruction. * src/truetype/ttinterp.c (Ins_GETINFO): Fix return value for stretching information.
Nikolaus Waxweiler 86eb43a9 2016-07-16T06:37:57 * src/truetype/ttinterp.c (Ins_MIRP): Fix copy-and-paste error. Problem reported by Hin-Tak Leung.
Werner Lemberg 474682ff 2016-07-06T08:54:35 * src/truetype/ttinterp.c (TInstruction_Function): Removed, unused.
Nikolaus Waxweiler b4598828 2016-05-31T08:39:52 [truetype] Let SHPIX move points in the twilight zone in v40. * src/truetype/ttinterp.c (Ins_SHPIX): Allow SHPIX to move points in the twilight zone. Otherwise, treat SHPIX the same as DELTAP. Unbreaks various fonts such as older versions of Rokkitt and DTL Argo T Light that would glitch severly after calling ALIGNRP after a blocked SHPIX.
Nikolaus Waxweiler ed1d8983 2016-05-18T06:58:44 [truetype] New implementation of v38 bytecode interpreter [2/3]. This patch actually modifies the bytecode interpreter. See added comments in `ttinterp.h' for more information on this and the following commit in the series. * src/truetype/ttinterp.c (SUBPIXEL_HINTING): Replaced by... (NO_SUBPIXEL_HINTING, SUBPIXEL_HINTING_INFINALITY, SUBPIXEL_HINTING_MINIMAL): ...new macros. (Direct_Move, Direct_Move_X, Direct_Move_Y): Handle backwards compatibility. Updated. (Ins_RS, Ins_FDEF, Ins_ENDF, Ins_CALL, Ins_LOOPCALL, Ins_MD): Updated. (Ins_INSTCTRL): Handle native ClearType mode flag. Updated. (Ins_FLIPPT, Ins_FLIPRGON, Ins_FLIPRGOFF): Handle backwards compatibility. (Move_Zp2_Point): Ditto. (Ins_SHP): Updated. (Ins_SHPIX): Handle backwards compatibility. Updated. (Ins_MSIRP, Ins_MDAP, Ins_MIAP, Ins_MDRP, Ins_MIRP): Updated. (Ins_ALIGNRP): Updated. (Ins_IUP, Ins_DELTAP): Handle backwards compatibility. Updated. (Ins_GETINFO): Handle v38 flags. Updated. (TT_RunIns): Handle backwards compatibility mode. Updated.
Alexei Podtelezhnikov e8542260 2016-04-08T23:21:34 Typos.
Nikolaus Waxweiler 6875093a 2016-01-28T12:24:36 Remove unpatented hinter (1/3). * src/truetype/ttinterp.c [TT_CONFIG_OPTION_UNPATENTED_HINTING]: Remove all code related to this macro.
Werner Lemberg 9adeab64 2016-01-13T11:54:10 Update copyright year.
Werner Lemberg 24a1fcdf 2015-10-15T21:50:15 [truetype] Add TT_CONFIG_OPTION_MAX_RUNNABLE_OPCODES (#46208). * devel/ftoption.h, include/freetype/config/ftoption.h (TT_CONFIG_OPTION_MAX_RUNNABLE_OPCODES): New configuration macro. * src/truetype/ttinterp.c (MAX_RUNNABLE_OPCODES): Removed. (TT_RunIns): Updated.
Werner Lemberg 837ad9d4 2015-10-15T21:15:45 * src/truetype/ttinterp.c (TT_RunIns): Fix bytecode stack tracing. The used indices were off by 1.
Alexei Podtelezhnikov 09635264 2015-08-31T23:14:46 Minor.
Werner Lemberg eb1bba9b 2015-06-30T09:46:39 Fix some clang compiler warnings. * src/base/ftoutln.c (FT_Outline_EmboldenXY), src/cff/cf2intrp.c (cf2_interpT2CharString), src/truetype/ttgload.c (load_truetype_glyph), src/truetype/ttgxvar.c (tt_handle_deltas), src/truetype/ttinterp.c (Ins_INSTCTRL): Fix signedness issues.
Alexei Podtelezhnikov 5aaabb44 2015-06-29T22:46:54 [truetype] Speed up bytecode interpreter. * src/truetype/ttinterp.c (Normalize): Use `FT_Vector_NormLen'.
Werner Lemberg e1862306 2015-06-07T16:11:18 * Version 2.6 released. ======================= Tag sources with `VER-2-6'. * docs/VERSION.DLL: Update documentation and bump version number to 2.6. * README, Jamfile (RefDoc), builds/windows/vc2005/freetype.vcproj, builds/windows/vc2005/index.html, builds/windows/vc2008/freetype.vcproj, builds/windows/vc2008/index.html, builds/windows/vc2010/freetype.vcxproj, builds/windows/vc2010/index.html, builds/windows/visualc/freetype.dsp, builds/windows/visualc/freetype.vcproj, builds/windows/visualc/index.html, builds/windows/visualce/freetype.dsp, builds/windows/visualce/freetype.vcproj, builds/windows/visualce/index.html, builds/wince/vc2005-ce/freetype.vcproj, builds/wince/vc2005-ce/index.html, builds/wince/vc2008-ce/freetype.vcproj, builds/wince/vc2008-ce/index.html: s/2.5.5/2.6/, s/255/26/. * include/freetype/freetype.h (FREETYPE_MINOR): Set to 6. (FREETYPE_PATCH): Set to 0. * builds/unix/configure.raw (version_info): Set to 18:0:12. * CMakeLists.txt (VERSION_MINOR): Set to 0. (VERSION_PATCH): Set to 6. * src/autofit/afmodule.c [!FT_MAKE_OPTION_SINGLE_OBJECT]: Add declarations for dumping functions. * src/truetype/ttinterp.c (TT_New_Context): Pacify compiler. * builds/toplevel.mk: Use `freetype.mk's code to compute the version string. Don't include a zero patch level in version string. * builds/freetype.mk: Remove code for computing the version string.
Werner Lemberg 54d04286 2015-06-01T12:12:06 [truetype] While tracing opcodes, show code position and stack. * src/truetype/ttinterp.c: Change all existing TRACE7 calls to TRACE6. (opcode_name): Add string lengths. (TT_RunIns): Implement display of code position and stack.
Werner Lemberg a5e1f6f3 2015-05-24T23:29:23 [truetype] Fix commit from 2015-05-22. * src/truetype/ttgload.c, src/truetype/ttinterp.c: Guard new code with `TT_CONFIG_OPTION_SUBPIXEL_HINTING'. Problem reported by Nikolaus Waxweiler <madigens@gmail.com>.
Werner Lemberg 7f099482 2015-05-24T09:50:24 [truetype] Fix return values of GETINFO bytecode instruction. * src/truetype/ttinterp.h (TT_ExecContextRec): New fields `vertical_lcd' and `gray_cleartype'. * src/truetype/ttgload.c (tt_loader_init): Initialize new fields. Change `symmetrical smoothing' to TRUE, since FreeType produces exactly this. * src/truetype/ttinterp.c (Ins_GETINFO): Fix selector/return bit values for symmetrical smoothing, namely 11/18. Handle bits for vertical LCD subpixels (8/15) and Gray ClearType (12/19).
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