kc3-lang/freetype/src/truetype

src/truetype

Log

Author Commit Date CI Message
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 f438e069 2018-01-27T14:39:15 * src/truetype/ttgxvar.c (tt_set_mm_blend): Minor.
Werner Lemberg ef486530 2018-01-27T11:16:22 [truetype] Better trace VF instances. * src/truetype/ttgxvar.c (ft_var_to_normalized): Don't emit number of coordinates. (TT_Get_MM_Var): Trace instance indices names. (TT_Set_Var_Design): Updated.
Werner Lemberg 50f693a7 2018-01-27T09:33:17 [truetype] Beautify tracing of VF axis records. * src/truetype/ttgxvar.c (TT_Get_MM_Var): Show axis records in a table-like manner.
Werner Lemberg 994eb2b3 2018-01-26T23:17:43 [truetype] Fix multiple calls of `FT_Get_MM_Var' (#52955). * src/truetype/ttgxvar.c (TT_Get_MM_Var): Set `face->blend->num_axis' in case we have to initialize the `face->blend'.
Werner Lemberg 029c9b23 2018-01-03T19:05:20 [truetype] Round offsets of glyph components only if hinting is on. * src/truetype/ttgload.c (TT_Process_Composite_Component): Implement it.
Werner Lemberg 55d6abea 2018-01-03T19:01:15 * src/truetype/ttgxvar.c (ft_var_to_design): Remove dead code. This is a better fix than the previous commit, which is now reverted.
Werner Lemberg ecfdfd44 2018-01-03T00:20:11 [truetype] Make blend/design coordinate round-tripping work. Behdad reported that setting blend coordinates, then getting design coordinates did incorrectly return the default instance's coordinates. * src/truetype/ttgxvar.c (tt_set_mm_blend): Fix it.
Werner Lemberg 0a0c2256 2018-01-02T09:33:57 Update copyright year.
Werner Lemberg 08cd62de 2017-12-20T22:06:19 Speed up FT_Set_Var_{Design,Blend}_Coordinates if curr == new. We exit early if the current design or blend coordinates are identical to the new ones. * src/truetype/ttgxvar.c (tt_set_mm_blend, TT_Set_Var_Design): Implement it, returning internal error code -1 if there will be no variation change. * src/type1/t1load.c (t1_set_mm_blend): Ditto. * src/base/ftmm.c (FT_Set_Var_Design_Coordinates, FT_Set_MM_Blend_Coordinates, FT_Set_Var_Blend_Coordinates): Updated.
Werner Lemberg 0579d545 2017-12-18T23:45:58 Update incorrect ChangeLog entry.
Matthias Clasen bdab6578 2017-12-18T20:45:17 [truetype] Minor code beautification. * src/truetype/ttgxvar.c (ft_var_to_normalized): Trace number of design coordinates. Simplify code.
Werner Lemberg 068a7a03 2017-12-18T20:34:05 * src/*/*: Only use `ft_' and `FT_' variants of stdc library stuff.
Werner Lemberg 2fe272ac 2017-12-18T19:40:07 * src/truetype/ttgxvar.c (tt_face_vary_cvt): Add size guard (#52688).
Werner Lemberg d062c54c 2017-12-18T09:41:17 [truetype] Fix previous commit. * src/truetype/ttgload.c (TT_Process_Simple_Glyph): Correctly handle unhinted phantom points, which must be properly scaled.
Werner Lemberg e7935f29 2017-12-18T07:29:57 [truetype] Don't apply HVAR and VVAR deltas twice (#52683). * src/truetype/ttgload.c (TT_Process_Simple_Glyph): Always adjust `pp1' to `pp4', except if we have an HVAR and/or VVAR table. * src/truetype/ttgxvar.c (TT_Vary_Apply_Glyph_Deltas): Handle alternative code branch identically w.r.t. presence of an HVAR and/or VVAR table.
Jonathan Kew 361af72e 2017-12-17T15:07:02 [truetype] Correctly handle variation font phantom points (#52683). * src/truetype/ttgxvar.c (TT_Vary_Apply_Glyph_Deltas): Fix phantom point indices.
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.
Werner Lemberg 337e49cf 2017-12-04T12:36:07 [truetype] Allow shared points in `cvar' table (#52532). * src/truetype/ttgxvar.c (tt_face_vary_cvt): Implement it by copying and adjusting the corresponding code from `TT_Vary_Apply_Glyph_Deltas'.
Werner Lemberg c18c391b 2017-11-28T12:43:45 [truetype] Improving tracing of composite glyphs. * src/truetype/ttgload.c (TT_Load_Composite_Glyph) [FT_DEBUG_LEVEL_TRACE]: Show composite glyph information.
Tor Andersson 2f1863cf 2017-11-23T20:40:52 Silence unused function warnings. Some static function declarations cause unused function warnings if certain config options are turned off via `ftoption.h'. * src/base/ftbase.h, src/base/ftrfork.c, src/sfnt/ttbdf.h, src/truetype/ttgxvar.h: Add #ifdef guards around these sections.
suzuki toshiya 77b34e01 2017-11-03T16:13:29 [truetype] Add more tricky fonts. See the report by Yang Yinsen. https://lists.gnu.org/archive/html/freetype-devel/2017-11/msg00000.html * src/truetype/ttobjs.c (trick_names): Add `DFGothic-EB', `DFGyoSho-Lt', `DFHSGothic-W5', `DFHSMincho-W3' and `DFHSMincho-W7'. (tt_check_trickyness_sfnt_ids): Add checksums for DFGothic-EB, DFGyoSho-Lt, DFHSGothic-W5, DFHSMincho-W3 and DFHSMincho-W7. Also add checksums for DLCLiShu and DLCHayBold which their family names were already listed but their checksums were previously unknown.
Werner Lemberg f89c67f0 2017-10-07T13:10:53 [cff, truetype] Adjust behaviour of named instances. This commit completely separates the interaction between named instances and variation functions. In particular, resetting the variation returns to the current named instance (if set) and not to the base font. As a side effect, variation functions no longer change the named instance index. * src/cff/cffobjs.c (cff_face_init): Use MM service's `set_instance' function. Also apply `MVAR' table to named instances. * src/truetype/ttgxvar.c (TT_Get_MM_Var): Add cast. (tt_set_mm_blend): No longer check whether requested variation coincides with a named instance. (TT_Set_Var_Design): Use current named instance for default coordinates. * src/truetype/ttobjs.c (tt_face_init): Use `TT_Set_Named_Instance'.
Werner Lemberg e9ef538a 2017-10-07T12:57:11 Make `FT_Set_Named_Instance' work. * src/cff/cffdrivr.c (cff_set_instance): New function. (cff_service_multi_masters): Register it. * src/truetype/ttgxvar.c (TT_Set_Named_Instance): New function. * src/truetype/ttgxvar.h: Updated. * src/truetype/ttdriver.c (tt_service_gx_multi_masters): Register it. * src/type1/t1load.c (T1_Reset_MM_Blend): New function. * src/type1/t1load.h: Updated. * src/type1/t1driver.c (t1_service_multi_masters): Register it.
Werner Lemberg 8c92f762 2017-10-07T12:12:49 Make `FT_FACE_FLAG_VARIATION' work. * include/freetype/internal/tttypes.h (TT_Face): Remove `is_default_instance'; this can be replaced with a combination of `FT_IS_VARIATION' and `FT_IS_INSTANCE'. * src/cff/cffdrivr.c (cff_get_advances): Updated. * src/sfnt/sfdriver.c (sfnt_get_ps_name), src/sfnt/sfobjs.c (sfnt_init_face): Updated. * src/truetype/ttdriver.c (tt_get_advances), src/truetype/ttgload.c (TT_Process_Simple_Glyph, load_truetype_glyph, IS_DEFAULT_INSTANCE), src/truetype/ttgxvar.c (tt_set_mm_blend): Updated. * src/truetype/ttgxvar.c (TT_Set_MM_Blend, TT_Set_Var_Design): Handle `FT_FACE_FLAG_VARIATION'. * src/type1/t1load.c (T1_Set_MM_Blend, T1_Set_MM_Design): Handle `FT_FACE_FLAG_VARIATION'.
Werner Lemberg e23fe2ad 2017-10-07T11:25:04 Add framework for setting named instance in MM service. * include/freetype/internal/services/svmm.h (FT_Set_Instance_Func): New function typedef. (MultiMasters): Add `set_instance' member. (FT_DEFINE_SERVICE_MULTIMASTERSREC): Updated. * src/cff/cffdrivr.c (cff_service_multi_masters), src/truetype/ttdriver (tt_service_gx_multi_masters), src/type1/t1driver.c (t1_service_multi_masters): Updated.
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 b19cdc9c 2017-09-21T11:02:35 [truetype] Fix `mmvar' array pointers, part 2. The previous commit was incomplete. * src/truetype/ttgxvar.c: Properly initialize sub-array offsets for `master' also.
Werner Lemberg 3b3cb32d 2017-09-21T09:03:20 [truetype] Fix `mmvar' array pointers. Without this change, clang's AddressSanitizer reports many runtime errors due to misaligned addresses. * src/truetype/ttgxvar.c (TT_Get_MM_Var): Use multiples of pointer size for sub-array offsets into `mmvar'.
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 39ce3ac4 2017-09-16T19:08:17 * Version 2.8.1 released. ========================= Tag sources with `VER-2-8-1'. * docs/VERSION.TXT: Add entry for version 2.8.1. * docs/CHANGES: Updated. * 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/2.8/2.8.1/, s/28/281/. * include/freetype/freetype.h (FREETYPE_PATCH): Set to 1. * builds/unix/configure.raw (version_info): Set to 21:0:15. * CMakeLists.txt (VERSION_PATCH): Set to 1.
suzuki toshiya 5c4e40d7 2017-09-09T00:59:33 [sfnt, truetype] Register the tags for marginal fonts. The first 32bit of standard TrueType variants is 0x00010000, `OTTO', `ttcf', `true' or `typ1'. 2 marginal dfonts on legacy Mac OS X, Keyboard.dfont and LastResort.dfont, have the sfnt resources starting 0xA5 followed by `kbd' or `lst'. Considering the following data could be parsed as conventional TrueType fonts, the header checking is updated to allow these tags. It seems that recent Mac OS X has already switched to normal TTF for these fonts. See the discussion at http://u88.n24.queensu.ca/exiftool/forum/index.php?topic=3931.0 * include/freetype/tttags.h (TTAG_0xA5kbd, TTAG_0xA5lst): New header tags for Keyboard.dfont and LastResort.dfont. * src/sfnt/sfobjs.c (sfnt_open_font): Accept the sfnt resource starts with TTAG_0xA5kbd or TTAG_0xA5lst. * src/truetype/ttobjs.c (tt_face_init): Accept the face with the format tag is TTAG_0xA5kbd or TTAG_0xA5lst.
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 b45043c4 2017-08-11T09:34:20 [sfnt, truetype] Improve handling of missing sbits. Requested by Behdad. Modern bitmap-only SFNTs like `NotoColorEmoji.ttf' don't contain entries in the bitmap strike(s) for empty glyphs. Instead, they rely that a space glyph gets created from the font's metrics data. This commit makes FreeType behave accordingly. * include/freetype/fterrdef.h (FT_Err_Missing_Bitmap): New error code. * src/sfnt/ttsbit.c (tt_sbit_decoder_load_image): Change error codes to make a distinction between a missing bitmap in a composite and a simple missing bitmap. * src/truetype/ttgload.c (TT_Load_Glyph): For a missing bitmap (in a bitmap-only font), synthesize an empty bitmap glyph if metrics are available.
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.
Werner Lemberg f43b3094 2017-08-05T18:22:17 [base, truetype] New function `FT_Get_Var_Axis_Flags'. The reserved `flags' field got a value in OpenType version 1.8.2; unfortunately, the public `FT_Var_Axis' structure misses the corresponding element. Since we can't add a new field, we add an access function. * src/base/ftmm.c (FT_Get_Var_Axis_Flags): New function. * include/freetype/ftmm.h (FT_VAR_AXIS_FLAG_HIDDEN): New macro. Updated. * src/truetype/ttgxvar.c (TT_Get_MM_Var): Increase allocated memory of `mmvar' to hold axis flags. Fill the axis flags array. * docs/CHANGES: Updated.
Nikolaus Waxweiler 24e256ab 2017-08-04T08:25:31 [truetype] Fix metrics of B/W hinting in v40 mode. Phantom points are now saved outside v40 backwards compatibility mode. This fixes the jumping glyphs when switching between v35 and v40 monochrome mode. * src/truetype/ttgload.c (TT_Hint_Glyph): Fix inversed bool logic.
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 7e508242 2017-08-01T12:44:35 * src/truetype/ttgxvar.c (TT_Get_MM_Var): Fix thinko.
Behdad Esfahbod 55bbb98f 2017-08-01T09:17:02 [truetype] Fix loading of named instances. * src/truetype/ttgxvar.c (TT_Get_MM_Var): Preserve file position while loading the `avar' table.
Werner Lemberg ce367774 2017-08-01T08:24:51 [sfnt, truetype] Minor adjustments for OpenType 1.8.2. * src/sfnt/sfobjs.c (sfnt_load_face): The units per EM value has now (tighter) limits. * src/truetype/ttgload.c (load_truetype_glyph): The new OpenType version explicitly allows all negative values for the number of contours if we have a composite glyph (this is for better backwards compatibility I guess), but it still recommends value -1.
Werner Lemberg 38bdf22b 2017-07-13T10:28:09 [truetype] Improve code comment.
Werner Lemberg 3d083fc2 2017-07-12T00:24:48 * src/truetype/ttpload.c (tt_face_get_location): Off-by-one typo. Also improve tracing message. Problem reported as https://bugs.chromium.org/p/chromium/issues/detail?id=738919
Werner Lemberg 4261e497 2017-07-05T23:00:23 * src/truetype/ttgxvar.c (FT_Stream_SeekSet): Fix warning (#51395).
Werner Lemberg 1c85479d 2017-07-04T08:08:54 [truetype] Prevent address overflow (#51365). * src/truetype/ttgxvar.c (FT_Stream_SeekSet): Add guard.
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 5f2a72cb 2017-06-10T11:29:24 [truetype] Fix TT_Set_Var_Design. Reported by Nikolaus Waxweiler <madigens@gmail.com>. * src/truetype/ttgxvar.c (TT_Set_Var_Design): Correctly handle the case where we have less input coordinates than axes.
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.
Werner Lemberg a9331c0f 2017-05-27T15:50:25 [truetype] Fix handling of design coordinates (#51127). * src/truetype/ttgxvar.c (tt_set_mm_blend): Compute all design coordinates if we have to create the `blends->coord' array. (TT_Get_MM_Blend, TT_Get_Var_Design): Select default instance coordinates if no instance is selected yet.
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 6e5445a2 2017-05-15T21:24:04 [truetype] Fix error handling for embedded bitmaps. Problem reported by Hin-Tak Leung <htl10@users.sourceforge.net>. * src/truetype/ttgload.c (TT_Load_Glyph) [TT_CONFIG_OPTION_EMBEDDED_BITMAPS]: Handle error if font is not scalable.
Werner Lemberg ec4cb04b 2017-05-07T13:06:36 [truetype] Add tricky font `DFGirl-W6-WIN-BF' (from Dynalab). Reported by Roy Tam <roytam@gmail.com>. * src/truetype/ttobjs.c (tt_check_trickyness_family): Implement it.
Roy Tam 0ed9fef0 2017-05-07T08:32:58 [truetype] More tricky fonts (mainly from Dynalab). * src/truetype/ttobjs.c (tt_check_trickyness_family, tt_check_trickyness_sfnt_ids): Add them.
Werner Lemberg f784a565 2017-05-07T00:45:05 [truetype] Add tricky font `DLCHayMedium' (from Dynalab). Reported by Roy Tam <roytam@gmail.com>. * src/truetype/ttobjs.c (tt_check_trickyness_family): Implement it.
Werner Lemberg 8cd31eb7 2017-05-03T23:54:29 */*: s/backwards compatibility/backward compatibility/.
Behdad Esfahbod 60bf264e 2017-05-02T14:38:54 [truetype] Make `IUP' gvar deltas do the same as Apple (#50832). When points are not touched by gvar interpolation deltas, FreeType gave a slightly different result than Apple's CoreText. The OpenType working group will update the specification to document the following behaviour: If the two points with deltas to the `left' and `right' of the untouched point have the same coordinate, then the inferred delta for the untouched point should be zero. * src/truetype/ttgxvar.c (tt_delta_interpolate): Implement new behaviour.
Werner Lemberg ba40054c 2017-05-02T12:32:19 [autofit] Remove `slight' auto-hint mode again. A poll on freetype-devel favoured changes directly applied to `light'. * include/freetype/freetype.h (FT_LOAD_TARGET_SLIGHT, FT_RENDER_MODE_SLIGHT): Removed. * src/autofit/afcjk.c (af_cjk_hints_init), src/autofit/aflatin.c (af_latin_hints_init), src/autofit/aflatin2.c (af_latin2_hints_init): Revert change from 2017-04-22. * src/autofit/afloader.c (af_loader_load_glyph) Remove references to FT_RENDER_MODE_SLIGHT. [AF_CONFIG_OPTION_TT_SIZE_METRICS]: Enable TrueType-like metrics unconditionally. * src/base/ftadvanc.c (LOAD_ADVANCE_FAST_CHECK): Revert change from 2017-04-22. * src/base/ftobjs.c (FT_Load_Glyph): Revert change from 2017-04-22. * src/pshinter/pshalgo.c (ps_hints_apply): Revert change from 2017-04-22. * src/smooth/ftsmooth.c (ft_smooth_render): Revert change from 2017-04-22. * docs/CHANGES: Updated.
Werner Lemberg 785833d9 2017-04-29T06:47:14 * src/truetype/ttdriver.c (tt_size_request): Properly check `error'. Reported by Earnestly <zibeon@googlemail.com> in http://lists.nongnu.org/archive/html/freetype/2017-04/msg00031.html
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 bb6c037b 2017-04-01T09:49:11 * src/truetype/ttgload.c: Include FT_CONFIG_CONFIG_H. Otherwise FT_UINT_TO_POINTER might not be defined. Problem reported by Alexei.
Werner Lemberg da38be83 2017-03-30T13:24:03 [truetype] Fix HVAR and VVAR handling (#50678). * src/truetype/ttgxvar.c (tt_hvadvance_adjust): Handle glyph indices larger than `mapCount' as described in the specification.
Werner Lemberg bcc74f4d 2017-03-30T13:14:43 [truetype] Allow linear scaling for unhinted rendering (#50470). * src/truetype/ttdriver.c (tt_size_request): Revert change from 2011-07-16; the intended metrics fix seems now to be implemented in a different way, making the patch unnecessary. Note that this change was usually patched out by all major GNU/Linux distributions due to heavy side effects. * src/truetype/ttgload.c (compute_glyph_metrics, TT_Load_Glyph): Refer to the metrics of the `TT_Size' object.
Werner Lemberg 1ede3674 2017-03-30T00:26:31 [truetype] Fix thinko related to PS name of default named instance. * src/truetype/ttgxvar.c (TT_Get_MM_Var): `strid' and `psid' are name ID values, not indices into the array of name entries.
Werner Lemberg 208e712d 2017-03-27T20:56:23 [cid, truetype] Don't use `index' as a variable name. At least on FreeBSD there is a global declaration of `index' in file `/usr/include/strings.h'. * src/cff/cf2intrp.c, src/truetype/ttgload.c: s/index/idx/ where appropriate.
Werner Lemberg 683e3ad9 2017-03-21T19:49:11 [truetype] Some variable renamings. Too much local variables holding different structures were called `metrics'. * src/truetype/ttdriver.c (tt_size_select): s/metrics/size_metrics/. * src/truetype/ttgload.c (tt_get_metrics_incr_overrids, compute_glyph_metrics): s/metrics/incr_metrics/. (load_sbit_image): s/metrics/sbit_metrics/. * src/truetype/ttobjs.c (tt_size_run_fpgm): s/metrics/size_metrics/. (tt_size_init_bytecode): s/metrics/tt_metrics/. (tt_size_reset): s/metrics/size_metrics/.
Werner Lemberg 7aeee3c5 2017-03-18T17:30:42 Introduce FT_UINT_TO_POINTER macro (#50560). We have to make a separate case for Windows 64's LLP64 data model. * builds/unix/ftconfig.in, builds/vms/ftconfig.h, include/freetype/config/ftconfig.h (FT_UINT_TO_POINTER): New macro. * src/truetype/ttgload.c (load_truetype_glyph): Use it.
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 d5bfa053 2017-03-17T21:47:54 Fixes for conditional compilation. * src/autofit/afcjk.c, src/autofit/afindic.c: Include `afcjk.h' earlier. * src/sfnt/sfobjs.c (sfnt_init_face): Put `memory' variable into TT_CONFIG_OPTION_GX_VAR_SUPPORT block. (sfnt_done_face): Protect some code with TT_CONFIG_OPTION_GX_VAR_SUPPORT. * src/sfnt/ttsbit.c (tt_face_load_sbix_image): Remove compiler warning. * src/truetype/ttgload.c (TT_Load_Simple_Glyph): Put `tmp' variable into TT_USE_BYTECODE_INTERPRETER block. (tt_loader_init): Put `error' variable into TT_USE_BYTECODE_INTERPRETER block.
Werner Lemberg d9ff6f20 2017-03-16T20:20:51 * src/truetype/ttgxvar.c (tt_done_blend): Free `vvar_table'. Reported as https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=883
Werner Lemberg 981c23b7 2017-03-15T11:35:26 Remove clang compiler warnings (#50548). * include/freetype/internal/tttypes.h (TT_FaceRec): Make `var_postscript_prefix_len' unsigned. * src/autofit/afwarp.c (af_warper_compute_line_best): Remove redundant assignment. * src/cff/cffload.c (cff_subfont_load): Add casts. * src/cff/cffparse.c (cff_parse_blend): Remove redundant assignment. * src/sfnt/sfdriver.c (fmix32, murmur_hash_3_128): Add `static' keyword. Add casts. (fixed2float): Add cast. (sfnt_get_var_ps_name): Make `p' always initialized. Add casts. * src/truetype/ttgxvar.c (TT_Get_MM_Var): Add casts.
Werner Lemberg 34010f7c 2017-03-14T21:50:22 [sfnt] Implement PS names for font instances [3/3]. Everything is guarded with TT_CONFIG_OPTION_GX_VAR_SUPPORT. * include/freetype/internal/tttypes.h (TT_FaceRec): New fields `var_postscript_prefix' and `var_postscript_prefix_len'. * src/sfnt/sfdriver.c: Include FT_TRUETYPE_IDS_H. (sfnt_is_alphanumeric): New wrapperfunction for `ft_isalnum'. (get_win_string, get_apple_string): Remove `const' from return value. (MAX_VALUE_DESCRIPTOR_LEN, MAX_PS_NAME_LEN): New macros. (hexdigits): New array. (sfnt_get_var_ps_name): New function, implementing Adobe TechNote 5902 to construct a PS name for a variation font instance. (sfnt_get_ps_name): Call `sfnt_get_var_ps_name' for font instances. * src/sfnt/sfobjs.c (sfnt_done_face): Updated. * src/truetype/ttgxvar.c (tt_set_mm_blend): Reset `face->postscript_name' to trigger recalculation for new instance parameters.
Werner Lemberg 447a0b62 2017-03-13T07:42:34 [truetype] Ignore invalid MVAR tags. Reported as https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=838 * src/truetype/ttgxvar.c (ft_var_load_mvar): Ignore value and emit warning for invalid tags. (tt_apply_mvar): Ignore invalid tags.
Werner Lemberg 5eb0fd5e 2017-03-12T20:46:56 [truetype] Store and use design coordinates also. * include/freetype/internal/services/svmm.h (FT_Get_Var_Blend_Func): Add `normalizedcoords' argument. * src/truetype/ttgxvar.h (GX_BlendRec): Add `coords' field to store the design coordinates of the current instance. Updated. * src/truetype/ttgxvar.c (TT_Set_MM_Blend): Move functionality to... (tt_set_mm_blend): ... New function. Convert data in `normalizedcoords' array to `coords' array on demand. (TT_Set_Var_Design): Store argument data in `coords' array. (TT_Get_Var_Design): Get data from `coords' array. (tt_get_var_blend): Updated. (tt_done_blend): Updated. * src/cff/cffload.c, src/cff/cffload.h (cff_get_var_blend): Updated. * src/cff/cf2ft.c (cf2_getNormalizedVector): Updated. * src/cff/cffobjs.c (cff_face_init): Updated.
Werner Lemberg 8dd9e967 2017-03-12T10:47:20 Document `GX_BlendRec'.
Werner Lemberg 4a62922b 2017-03-12T10:19:53 src/truetype/ttgxvar.[ch]: s/avar_checked/avar_loaded/.
Werner Lemberg 27fee7f8 2017-03-06T20:45:44 [sfnt, truetype] Always provide default instance. As documented in the OpenType specification, an entry for the default instance may be omitted in the named instance table. In particular this means that even if there is no named instance table in the font we actually do have a named instance, namely the default instance. For consistency, we always want the default instance in our list of named instances. If it is missing, we try to synthesize it. * src/sfnt/sfobjs.c (sfnt_init_face): Check whether the default instance is in the table of named instances. Otherwise adjust number of instances. * src/truetype/ttgxvar.c: Include FT_TRUETYPE_IDS_H. (TT_Get_MM_Var): Use `face->root.style_flags' as the number of named instances. Sythesize a named instance entry if necessary. (tt_done_blend): Free `normalized_stylecoords'.
Werner Lemberg 588e38e0 2017-03-04T11:04:24 [truetype] Make `TT_Set_MM_Blend' set named instance index. * src/truetype/ttgxvar.h (GX_Blend): New array `normalized_stylecoords'. * src/truetype/ttgxvar.c (TT_Get_MM_Var): Allocate and fill `normalized_stylecoords'. (TT_Set_MM_Blend): Check instance tuple and adjust `face_index' accordingly.
Werner Lemberg 4717696c 2017-03-02T21:42:14 [truetype] Split off designer/normalized conversion routines. * src/truetype/ttgxvar.c (TT_Set_Var_Design): Split off conversion code designer->normalized coordinates to... (ft_var_to_normalized): ... New function. (TT_Get_Var_Design): Split off conversion code normalized->designer coordinates to... (ft_var_to_design): ... New function.
Werner Lemberg 01f315f0 2017-02-23T14:24:01 [truetype] Minor improvement. * src/truetype/ttgload.c (TT_Process_Simple_Glyph, load_truetype_glyph): Remove unnecessary tests.
Werner Lemberg f0cee1a2 2017-02-23T08:23:39 * include/freetype/internal/tttypes.h (TT_Face): s/isCFF2/is_cff2/. For orthogonality with other structure field names. Update all users.
Werner Lemberg faa3c882 2017-02-06T13:13:02 [truetype] Implement `VVAR' table support. * src/truetype/ttgxvar.h (GX_HVarTable): Renamed to... (GX_HVVarTable): ...This. (GX_Blend): Add fields for `VVAR' table handling. Other minor updates. * src/truetype/ttgxvar.c (ft_var_load_hvar): Renamed to... (ft_var_load_hvvar): ...This. Handle VVAR loading also (controlled by an additional parameter). (tt_hadvance_adjust): Renamed to... (tt_hvadvance_adjust): ...This. Handle application of advance height also (controlled by an additional parameter). (tt_hadvance_adjust, tt_vadvance_adjust): Wrappers for `tt_hvadvance_adjust'. * src/truetype/ttdriver.c (tt_service_metrics_variations): Updated.
Werner Lemberg e6699596 2017-02-02T11:38:04 [truetype] Fix MVAR post-action handling. Reported as https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=509 * src/truetype/ttobjs.c (tt_size_reset): Do nothing for CFF2. This is important to make `tt_size_reset_iterator' (called in `tt_apply_mvar') always work.
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