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diff --git a/ChangeLog.27 b/ChangeLog.27 new file mode 100644 index 000000000..0e82b2fb3 --- /dev/null +++ b/ChangeLog.27 @@ -0,0 +1,2106 @@ +2016-12-30 Werner Lemberg <wl@gnu.org> + + * Version 2.7.1 released. + ========================= + + + Tag sources with `VER-2-7-1'. + + * docs/VERSION.TXT: Add entry for version 2.7.1. + + * 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/2.7/2.7.1/, s/27/271/. + + * include/freetype/freetype.h (FREETYPE_PATCH): Set to 1. + + * builds/unix/configure.raw (version_info): Set to 19:0:13. + * CMakeLists.txt (VERSION_PATCH): Set to 1. + +2016-12-30 Werner Lemberg <wl@gnu.org> + + [ftfuzzer] Replace `rand' with an xorshift algorithm. + + * src/tools/ftfuzzer/ftfuzzer.cc: Don't include `stdlib.h'. + (Random): Implement and use a 32bit `xorshift' algorithm. + +2016-12-30 Werner Lemberg <wl@gnu.org> + + [ftfuzzer] Restrict number of tested bitmap strikes. + + Malformed fonts often have large values for the number of bitmap + strikes, and FreeType doesn't check the validity of all bitmap + strikes in advance. + + Reported as + + https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=353 + + * src/tools/ftfuzzer/ftfuzzer.cc: Include `stdlib.h' for `rand'. + (Random): Small class to provide n randomly selected numbers + (without repetition) out of the value set [1,N]. + (LLVMFuzzerTestOneInput): Use it to test only up to 10 bitmap + strikes. + +2016-12-29 Werner Lemberg <wl@gnu.org> + + [truetype] Variation font API stability issues. + + Make some functions work before a call to `TT_Set_MM_Blend'. + + * src/truetype/ttgxvar.c (tt_hadvance_adjust): Exit immediately if + we don't blend. + (TT_Get_MM_Blend, TT_Get_Var_Design): Return default values if we + don't blend. + +2016-12-29 Werner Lemberg <wl@gnu.org> + + * src/truetype/ttgxvar.c (TT_Get_MM_Var): Check axis data. + + Reported as + + https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=348 + +2016-12-29 Werner Lemberg <wl@gnu.org> + + [truetype] Tracing fixes. + + * src/truetype/ttgxvar.c (tt_hadvance_adjust): Emit correct + information. + (TT_Set_Var_Design): Fix typo. + (TT_Get_Var_Design): Fix typos. + +2016-12-29 Werner Lemberg <wl@gnu.org> + + */*: Use `0.5f' for tracing 16.16 numbers. + +2016-12-29 Werner Lemberg <wl@gnu.org> + + [pcf] Protect against gzip bombs. + + Fix suggested by Kostya; reported as + + https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=345 + + * src/pcf/pcfread.c (pcf_read_TOC): Limit number of TOC entries to + 1024. + +2016-12-28 Werner Lemberg <wl@gnu.org> + + [psnames] Only declare, not define, data in `pstables.h' (#49949). + + Pdfium includes `pstables.h' a second time; moving the definition + from `pstables.h' to `psmodule.c' saves more than 60kByte data + segment space for this case. + + * src/tools/glnames.py (StringTable::dump, + StringTable::dump_sublist, dump_encoding, dump_array): Emit + additional code to only define tables if `DEFINE_PS_TABLES' is set. + + * src/psnames/pstables.h: Regenerated. + * src/psnames/psmodule.c (DEFINE_PS_TABLES): Define. + +2016-12-28 Werner Lemberg <wl@gnu.org> + + [cff] Catch `blend' op in non-variant fonts. + + Reported as + + https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=334 + + * src/cff/cf2intrp.c (cf2_interpT2CharString) <cf2_cmdBLEND>: Don't + allow `blend' op for non-variant fonts. + +2016-12-28 Werner Lemberg <wl@gnu.org> + + [cff] Better check of number of blends. + + * src/cff/cf2intrp.c (cf2_interpT2CharString) <cf2_cmdBLEND>, + src/cff/cffparse.c (cff_parse_blend): Compare number of blends with + stack size. + +2016-12-27 Werner Lemberg <wl@gnu.org> + + Documentation updates. + + * docs/CHANGES: Add missing information. + + * docs/formats.txt: Rewritten and updated. + +2016-12-27 Werner Lemberg <wl@gnu.org> + + [truetype, type1] Implement `FT_Get_Var_Design_Coordinates'. + + * src/truetype/ttgxvar.c (TT_Get_Var_Design): Implement. + (TT_Set_Var_Design): Fix tracing. + + * src/type1/t1load.c (T1_Get_Var_Design): Implement. + +2016-12-24 Werner Lemberg <wl@gnu.org> + + * src/truetype/ttpload.c (tt_face_load_hdmx): Ignore `version'. + + Problem reported by 張俊芝 <418092625@qq.com>. + +2016-12-24 Werner Lemberg <wl@gnu.org> + + * src/sfnt/ttsbit.c (tt_face_load_sbit): Allow more version values. + + Some fonts seem to have the `version' field in the wrong byte order. + + Problem reported by 張俊芝 <418092625@qq.com>. + +2016-12-24 Werner Lemberg <wl@gnu.org> + + * src/truetype/ttpload.c (tt_face_load_loca): Sanitize table length. + + This trivial fix allows us to accept more fonts. + + Problem reported by 張俊芝 <418092625@qq.com>. + +2016-12-24 Werner Lemberg <wl@gnu.org> + + * src/sfnt/sfobjs.c (sfnt_init_face): Fix tracing. + +2016-12-22 Werner Lemberg <wl@gnu.org> + + * CMakeLists.txt: Make it work with cmake 2.8.11.2 (#49909). + +2016-12-22 Werner Lemberg <wl@gnu.org> + + Ensure used preprocessor symbols are defined (#49790). + + * builds/unix/ftconfig.in, builds/vms/ftconfig.h, + include/freetype/config/ftconfig.h: Check `__GNUC__', `__IBMC__', + and `__SUNPRO_C' correctly. + +2016-12-22 Werner Lemberg <wl@gnu.org> + + * src/base/ftrfork.c (FT_Raccess_Get_DataOffsets): Check `count'. + + Reported as + + https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=308 + +2016-12-22 Werner Lemberg <wl@gnu.org> + + [cff] Protect against invalid `vsindex' and `blend' values. + + Reported as + + https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=305 + + * src/cff/cf2intrp.c (cf2_interpT2CharString) <cf2_cmdVSINDEX, + cf2_cmdBLEND>: Implement it. + +2016-12-22 Werner Lemberg <wl@gnu.org> + + [ftfuzzer] Always use Adobe CFF engine. + + * src/tools/ftfuzzer/ftfuzzer.cc (FT_Global::FT_Global): Implement + it. + +2016-12-21 Werner Lemberg <wl@gnu.org> + + * src/truetype/ttgxvar.c (TT_Vary_Apply_Glyph_Deltas): Thinko. + + I should really stop coding late in the evening... + + Thanks again to Ben for checking. + +2016-12-21 Werner Lemberg <wl@gnu.org> + + [autofit] Support variation fonts. + + (This ChangeLog entry was added later on.) + + * src/autofit/afglobal.c (af_face_globals_free): Remove useless + code. + + * src/base/ftmm.c (FT_Set_MM_Design_Coordinates, + * FT_Set_Var_Design_Coordinates, FT_Set_MM_Blend_Coordinates, + FT_Set_Var_Blend_Coordinates): Finalize + auto-hinter data to enforce recomputation. Note that this is a + brute-force method which should be improved. + +2016-12-21 Werner Lemberg <wl@gnu.org> + + * src/truetype/ttgxvar.c (TT_Vary_Apply_Glyph_Deltas): Thinko. + + Don't apply deltas twice for non-phantom points. + + Spotted by Ben Wagner. + +2016-12-21 Werner Lemberg <wl@gnu.org> + + [cff, truetype] Another try for #49829. + + * src/cff/cffdrivr.c: Don't include + `FT_SERVICE_METRICS_VARIATIONS_H'. + (cff_get_advances): Use `ttface->variation_support'. + + * src/truetype/ttdriver.c (tt_get_advances): Use + `ttface->variation_support'. + + * src/truetype/ttgload.c (TT_Process_Simple_Glyph, + load_truetype_glyph): Use `ttface->variation_support'. + +2016-12-21 Werner Lemberg <wl@gnu.org> + + [truetype, sfnt] Introduce font variation flags to `TT_Face'. + + * include/freetype/internal/tttypes.h (TT_FACE_FLAG_VAR_XXX): + New macros describing available functionality of various OpenType + tables related to font variation. + (TT_Face): New fields `variation_support' and `mvar_support', + replacing and extending `use_fvar'. + + * src/sfnt/sfobjs.c (sfnt_init_face, sfnt_load_face): Use + `variation_support'. + + * src/truetype/ttgxvar.c (ft_var_load_hvar): Set `variation_support' + field. + (TT_Vary_Apply_Glyph_Deltas): Updated. + +2016-12-21 Werner Lemberg <wl@gnu.org> + + [base] Improve sanity check for Mac resources (#49888). + + * src/base/ftobjs.c (Mac_Read_sfnt_Resource): Abort if `rlen' is not + positive. + +2016-12-20 Werner Lemberg <wl@gnu.org> + + [base] More sanity checks for Mac resources. + + We use + + https://github.com/kreativekorp/ksfl/wiki/Macintosh-Resource-File-Format + + and + + https://developer.apple.com/legacy/library/documentation/mac/pdf/MoreMacintoshToolbox.pdf#page=151 + + as references. + + * include/freetype/internal/ftrfork.h (FT_RFork_Ref): Use FT_Short + for `res_id'. + + * src/base/ftrfork.c (FT_Raccess_Get_HeaderInfo): Extract map length + and use it to improve sanity checks. + Follow the specification more closely;in particular, all data types + are signed, not unsigned. + (FT_Raccess_Get_DataOffsets): Follow the specification more closely; + in particular, all data types are signed, not unsigned. + Add some sanity checks. + +2016-12-20 Werner Lemberg <wl@gnu.org> + + [truetype] Improve logic for getting fast advance widths. + + * src/cff/cffdrivr.c (cff_get_advances), src/truetype/ttdriver.c + (tt_get_advances): Use `is_default_instance' for test; this gets + recomputed after changing blend coordinates. + +2016-12-20 Ben Wagner <bungeman@google.com> + Werner Lemberg <wl@gnu.org> + + [truetype] Fix linear metrics of GX variation fonts (#49829). + + When asking for an unhinted non-default variations, + `linearVertAdvance' is currently the value from the `hmtx' table + instead of the actual value after applying the variation. `HVAR' + support fixes this, but fonts will exist without that table and will + need sane fallback. + + Problem also reported as + + https://bugs.chromium.org/p/skia/issues/detail?id=5917 + + * src/truetype/ttgload.c (TT_Process_Simple_Glyph, + load_truetype_glyph): Implement linear advance adjustments if `HVAR' + or `VVAR' tables are missing. + +2016-12-20 Werner Lemberg <wl@gnu.org> + + [cff, truetype] Fast advance width retrieval for fonts with HVAR. + + Everything is guarded with TT_CONFIG_OPTION_GX_VAR_SUPPORT. + + * src/base/ftadvanc.c (LOAD_ADVANCE_FAST_CHECK): Don't handle MM. + + * src/cff/cffdrivr.c: Include FT_SERVICE_METRICS_VARIATIONS_H. + (cff_get_advances): Test for HVAR and VVAR. + + * src/truetype/ttdriver.c (tt_get_advances): Test for HVAR and VVAR. + +2016-12-18 Werner Lemberg <wl@gnu.org> + + [base] Fix invalid mac font recursion. + + Reported as + + https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=304 + + * src/base/ftobjs.c (FT_Open_Face): Code moved to... + (ft_open_face_internal): ... this function. + Add a parameter to control whether we try special Mac font handling + in case of failure. + (FT_Open_Face, FT_New_Face, FT_New_Memory_Face, + open_face_from_buffer): Use `ft_open_face_internal'. + +2016-12-18 Werner Lemberg <wl@gnu.org> + + * src/cff/cffobjs.c (cff_face_init): Make named instances work. + +2016-12-18 Werner Lemberg <wl@gnu.org> + + [truetype, cff] Extend `get_var_blend' function of MM service. + + In particular, we need access to named instance data. + + * include/freetype/internal/services/svmm.h (FT_Get_Var_Blend_Func): + Add argument for `FT_MM_Var'. + + * src/cff/cffload.c (cff_get_var_blend): Updated. + * src/cff/cffload.h: Updated. + + * src/cff/cf2ft.c (cf2_getNormalizedVector): Updated. + + * src/truetype/ttgxvar.c (tt_get_var_blend): Updated. + Accept value `NULL' for arguments. + * src/truetype/ttgxvar.h: Updated. + +2016-12-18 Werner Lemberg <wl@gnu.org> + + [sfnt] Handle `fvar' with zero axes as a non-MM font. + + This is better behaviour than exiting with an error. + + * include/freetype/internal/tttypes.h (TT_Face): Add `use_fvar' + field. + + * src/sfnt/sfobjs.c (sfnt_init_face): Compute `use_fvar', also + updating the validation code. + Use `use_fvar' to compute FT_FACE_FLAG_MULTIPLE_MASTERS. + + * src/truetype/ttgxvar.c (TT_Get_MM_Var): Remove `fvar' validation + code. + +2016-12-18 Werner Lemberg <wl@gnu.org> + + Minor GX code shuffling. + + * include/freetype/internal/tttypes.h (TT_Face): Move + `is_default_instance' into TT_CONFIG_OPTION_GX_VAR_SUPPORT + block. + + * src/sfnt/sfobjs.c (sfnt_init_face): Updated. + * src/truetype/ttgload.c (IS_DEFAULT_INSTANCE): New macro. + (TT_Load_Glyph): Use it. + +2016-12-18 Werner Lemberg <wl@gnu.org> + + [cff] Better handling of non-CFF font formats. + + * src/cff/cffload.c (cff_font_load): Pure CFFs don't have a + signature, so return `FT_Err_Unknown_File_Format' more often. + +2016-12-17 Werner Lemberg <wl@gnu.org> + + * src/cff/cffload.c (cff_build_blend_vector): Remove redundant code. + +2016-12-17 Werner Lemberg <wl@gnu.org> + + * src/truetype/ttobjs.c (tt_face_init): Simplify conditional code. + +2016-12-17 Werner Lemberg <wl@gnu.org> + + [sfnt, truetype] Various sanitizing fixes. + + * src/sfnt/sfobjs.c (sfnt_init_face): If the axis count in `fvar' is + zero, set `num_instances' to zero. + + * src/truetype/ttgxvar.c (TT_Get_MM_Var): Handle `fvar' table with + zero axes as invalid. + + * src/truetype/ttobjs.c (tt_face_init): Improve logic of loading + `loca', `cvt', `fpgm', and `prep' table. + +2016-12-17 Werner Lemberg <wl@gnu.org> + + Improve tracing of `FT_Open_Face'. + + * src/base/ftobjs.c (FT_Open_Face): Return info on number of + available faces and numbered instances, or the indices of the + requested face and numbered instance. + + * src/sfnt/sfobjs. (sfnt_open_font): Trace number of subfonts. + +2016-12-17 Werner Lemberg <wl@gnu.org> + + * src/cff/cffload.c (cff_load_private_dict): Always init `blend'. + + Reported as + + https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=295 + +2016-12-16 Werner Lemberg <wl@gnu.org> + + [truetype] Fix `cvar' sanity test. + + Reported by Dave Arnold. + + * src/truetype/ttgxvar.c (tt_face_vary_cvt): Use tuple count mask. + +2016-12-16 Werner Lemberg <wl@gnu.org> + + [cff, truetype] Remove compiler warnings; fix `make multi'. + + * src/cff/cf2font.h: Include `cffload.h'. + + * src/cff/cffload.c: Include FT_MULTIPLE_MASTERS_H and + FT_SERVICE_MULTIPLE_MASTERS_H. + (cff_vstore_load): Eliminate `vsSize'. + (cff_load_private_dict): Tag as `FT_LOCAL_DEF'. + + * src/cff/cffload.h: Include `cffobjs.h'. + Provide declaration for `cff_load_private_dict'. + + * src/truetype/ttgxvar.c (ft_var_load_hvar): Eliminate + `minorVersion' and `map_offset'. + +2016-12-16 Werner Lemberg <wl@gnu.org> + + [cff] Fix heap buffer overflow (#49858). + + * src/cff/cffparse.c (cff_parser_run): Add one more stack size + check. + +2016-12-15 Werner Lemberg <wl@gnu.org> + + Fix clang warnings. + + * src/cff/cffload.c (cff_blend_doBlend): Add cast. + (cff_subfont_load): Set `error' correctly. + + * src/sfnt/ttmtx.c (tt_face_get_metrics): Typo. + +2016-12-15 Dave Arnold <darnold@adobe.com> + Werner Lemberg <wl@gnu.org> + + [cff] Implement CFF2 support (2/2). + + The font variation code. All parts dependent on the GX code in the + `truetype' module are guarded with TT_CONFIG_OPTION_GX_VAR_SUPPORT. + In other words, you can still compile the `cff' module without + defining TT_CONFIG_OPTION_GX_VAR_SUPPORT (which brings you CFF2 + support without font variation). + + * src/cff/cf2font.c (cf2_font_setup): Add support for font + variation. + * src/cff/cf2font.h (CF2_Font): Add fields for variation data. + + * src/cff/cf2ft.c (cf2_free_instance): Free blend data. + (cf2_getVStore, cf2_getNormalizedVector): New functions. + * src/cff/cf2ft.h: Updated. + + * src/cff/cf2intrp.c: Include `cffload.h'. + (cf2_cmdRESERVED_15, cf2_cmdRESERVED_16): Replace with... + (cf2_cmdVSINDEX, cf2_cmdBLEND): ... this new enum values. + (cf2_doBlend): New function. + (cf2_interpT2CharString): Handle `vsindex' and `blend' opcodes. + + * src/cff/cffload.c (FT_fdot14ToFixed): New macro. + (cff_vstore_done, cff_vstore_load): New functions. + (cff_blend_clear, cff_blend_doBlend, cff_blend_build_vector, + cff_blend_check_vector): New functions. + (cff_load_private_dict): Add arguments for blend vector. + Handle blend data. + (cff_subfont_load, cff_subfont_done): Updated. + (cff_font_load): Handle CFF2 variation store data. + (cff_font_done): Updated. + * src/cff/cffload.h: Include `cffparse.h'. + Updated. + + * src/cff/cffobjs.c (cff_face_done): Updated. + + * src/cff/cffparse.c: Include `cffload.h'. + (cff_parse_num): Handle internal value 255. + (cff_parse_vsindex, cff_parse_blend): New functions. + (CFF_FIELD_BLEND): New macro. + (cff_parser_run): Updated. + * src/cff/cffparse.h (cff_kind_blend): New enum value. + + * src/cff/cfftoken.h: Handle `vstore', `vsindex', and `blend' + dictionary values. + + * src/cff/cfftypes.h (CFF_VarData, CFF_AxisCoords, CFF_VarRegion, + CFF_VStore, CFF_Blend): New structures. + (CFF_FontRecDict): Add `vstore_offset' field. + (CFF_Private): Add `vsindex' field. + (CFF_SubFont): Add fields for blend data. + (CFF_Font): Add `vstore' field. + + * src/truetype/ttgxvar.c (TT_Get_MM_Var): `CFF2' is equal to `gvar', + since glyph variation data is directly embedded. + (TT_Set_MM_Blend): Don't load `gvar' table for CFF2 fonts. + +2016-12-15 Dave Arnold <darnold@adobe.com> + Werner Lemberg <wl@gnu.org> + + [cff] Implement CFF2 support (1/2). + + This commit does not contain the blend code for font variation + support, which follows in another commit. + + You should ignore whitespace while inspecting this commit. + + * include/freetype/internal/tttypes.h (TT_Face): Add `isCFF2' + member. + + * src/cff/cf2font.h (CF2_Font): Add `isCFF2' member. + + * src/cff/cf2ft.c (cf2_decoder_parse_charstrings): Handle `isCFF2' + flag. + (cf2_getMaxstack): New function. + * src/cff/cf2ft.h: Updated. + + * src/cff/cf2intrp.c (cf2_escRESERVED_38): New enum. + (cf2_interpT2CharString): Handle CFF2 differences. + Add tracing message for errors. + + * src/cff/cffdrivr.c (cff_get_glyph_name, cff_get_name_index): + Update for CFF2. + + * src/cff/cffload.c (FT_FIXED_ONE): New macro. + (cff_index_init, cff_index_load_offsets, cff_index_access_element, + cff_index_get_name, cff_ft_select_get, cff_load_private_dict, + cff_subfont_load, cff_font_load): Handle CFF2. + * src/cff/cffload.h: Updated. + + * src/cff/cffobjs.c (cff_face_init): Handle CFF2. + + * src/cff/cffparse.c (cff_parse_maxstack): New function. + (CFFCODE_TOPDICT, CFFCODE_PRIVATE): Removed + * src/cff/cffparse.h (CFF2_MAX_STACK, CFF2_DEFAULT_STACK): New + macros. + (CFF2_CODE_TOPDICT, CFF2_CODE_FONTDICT, CFF2_CODE_PRIVATE): New + macros. + + * src/cff/cfftoken.h: Add fields for CFF2 dictionaries (but no blend + stuff). + + * src/cff/cfftypes.h (CFF_Index): Add `hdr_size' field. + (CFF_FontRecDict): Add `maxstack' field. + (CFF_Private): Add `subfont' field. + (CFF_Font): Add `top_dict_length' and `cff2' fields. + + * src/sfnt/sfobjs.c (sfnt_load_face): Handle `CFF2' table. + +2016-12-15 Werner Lemberg <wl@gnu.org> + Dave Arnold <darnold@adobe.com> + + [truetype] Provide HVAR advance width variation as a service. + + Everything is guarded with TT_CONFIG_OPTION_GX_VAR_SUPPORT. + + * src/truetype/ttdriver.c (tt_service_metrics_variations): Updated. + + * src/truetype/ttgxvar.c (TT_Vary_Apply_Glyph_Deltas): Prevent + double adjustment of advance width. + + * src/sfnt/ttmtx.c: Include FT_SERVICE_METRICS_VARIATIONS_H. + (tt_face_get_metrics): Apply metrics variations. + +2016-12-15 Dave Arnold <darnold@adobe.com> + Werner Lemberg <wl@gnu.org> + + [truetype] Provide function to apply `HVAR' advance width variation. + + Everything is guarded with TT_CONFIG_OPTION_GX_VAR_SUPPORT. + + * src/truetype/ttgxvar.c (tt_hadvance_adjust): New function. + * src/truetype/ttgxvar.h: Updated. + +2016-12-15 Dave Arnold <darnold@adobe.com> + Werner Lemberg <wl@gnu.org> + + [truetype] Add `HVAR' table parsing. + + Note that this is not complete yet; it only handles advance width + variation. + + Activation of the code follows in another commit. + + Everything is guarded with TT_CONFIG_OPTION_GX_VAR_SUPPORT. + + * include/freetype/ftmm.h (FT_Var_Named_Style): Add `psid' member. + + * src/truetype/ttgxvar.h (GX_HVarData, GX_AxisCoords, GX_HVarRegion, + GX_HVStore, GX_WidthMap): New auxiliary structures for... + (GX_HVarTable): ... HVAR main structure. + (GX_BlendRec): Add data for HVAR loading. + + * src/truetype/ttgxvar.c (FT_FIXED_ONE, FT_fdot14ToFixed, + FT_intToFixed, FT_fixedToInt): New macros. + (ft_var_load_hvar): New function. + (TT_Get_MM_Var): Updated. + (tt_done_blend): Deallocate HVAR data. + +2016-12-15 Dave Arnold <darnold@adobe.com> + + [cff] Extend number parsing. + + The forthcoming CFF2 support needs a dynamic parsing limit. + + * src/cff/cffparse.c (cff_parse_num, do_fixed, cff_parse_fixed, + cff_parse_fixed_scaled, cff_parse_fixed_dynamic): Add argument for + parser. + (cff_parse_font_matrix, cff_parse_font_bbox, cff_parse_private_dict, + cff_parse_multiple_master, cff_parse_cid_ros, cff_parser_run): Updated. + + * src/cff/cffparse.h (cff_parse_num): Export locally. + +2016-12-15 Dave Arnold <darnold@adobe.com> + + [cff] Implement dynamic stack size for Adobe engine. + + This also adds `cf2_stack_setReal' and `cf2_stack_pop', needed for + the forthcoming CFF2 support. + + * src/cff/cf2stack.c (cf2_stack_init): Add argument for stack size. + (cf2_stack_free): Deallocate stack. + (cf2_stack_count, cf2_stack_pushInt, cf2_stack_pushFixed, + cf2_stack_popInt, cf2_stack_popFixed, cf2_stack_getReal, + cf2_stack_clear): Updated. + (cf2_stack_setReal, cf2_stack_pop): New functions. + + * src/cff/cf2stack.h (CF2_Stack): Add `stackSize' member. + Update function declarations. + + * src/cff/cf2intrp.c (cf2_interpT2CharString): Updated. + + * src/cff/cffparse.c (cff_parser_init): Add parameter for stack + size; return error code. + (cff_parser_done): New function. + (cff_parser_run): Updated. + + * src/cff/cffparse.h (CFF_Parser): Add `stackSize' member and make + `stack' a pointer. + Update function declarations. + + * src/cff/cffload.c (cff_load_private_dict, cff_subfont_load): + Updated. + +2016-12-15 Dave Arnold <darnold@adobe.com> + Werner Lemberg <wl@gnu.org> + + [cff] Code shuffling. + + * src/cff/cfftypes.h (CFF_Font): Add `library' and `base_offset' + fields. + + * src/cff/cffload.c (cff_subfont_load): Change last argument to + `CFF_Font' + Split off parsing of private dictionary into... + (cff_load_private_dict): ...this new function. + (cff_font_load): Updated. + +2016-12-14 Werner Lemberg <wl@gnu.org> + + [sfnt, truetype] Add framework for Metrics Variations service. + + No effect yet; service functions will be implemented later on. + + Everything is guarded with TT_CONFIG_OPTION_GX_VAR_SUPPORT. + + * include/freetype/internal/services/svmetric.h: New file. + + * include/freetype/internal/ftserv.h + (FT_SERVICE_METRICS_VARIATIONS_H): New macro. + + * include/freetype/internal/tttypes.h (TT_Face): New field `var'. + + * src/sfnt/sfobjs.c: Include FT_SERVICE_METRICS_VARIATIONS_H. + (sfnt_init_face): Initialize `face->var'. + + * src/truetype/ttdriver.c: Include FT_SERVICE_METRICS_VARIATIONS_H. + (tt_service_metrics_variations): New service. + (tt_services): Updated. + + * src/truetype/ttpic.h: Updated. + +2016-12-14 Werner Lemberg <wl@gnu.org> + + [cff] Add Multiple Masters service. + + The code simply uses the MM functions from the `truetype' module. + + Everything is guarded with TT_CONFIG_OPTION_GX_VAR_SUPPORT. + + * include/freetype/internal/tttypes.h (TT_Face): New field `mm'. + + * src/cff/cffdrivr.c: Include FT_SERVICE_MULTIPLE_MASTERS_H. + (cff_set_mm_blend, cff_get_mm_blend, cff_get_mm_var, + cff_set_var_design, cff_get_var_design): New functions. + (cff_service_multi_masters): New service. + (cff_services): Updated. + + * src/cff/cffload.c (cff_get_var_blend, cff_done_blend): New + functions. + * src/cff/cffload.h: Updated. + + * src/cff/cffpic.h (CFF_SERVICE_MULTI_MASTERS_GET): New macro. + + * src/sfnt/sfobjs.c: Include FT_SERVICE_MULTIPLE_MASTERS_H. + (sfnt_init_face): Initialize `face->mm'. + +2016-12-14 Werner Lemberg <wl@gnu.org> + + Extend functionality of `ft_module_get_service'. + + It can now differentiate between local and global searches. + + * src/base/ftobjs.c (ft_module_get_service): Add `global' argument. + (FT_Get_TrueType_Engine_Type): Updated. + + * src/cff/cffdrivr.c (cff_get_ps_name, cff_get_cmap_info): Updated. + + * include/freetype/internal/ftobjs.h: Updated. + * include/freetype/internal/ftserv.h (FT_FACE_FIND_GLOBAL_SERVICE): + Updated. + +2016-12-14 Werner Lemberg <wl@gnu.org> + + * src/truetype/ttgxvar.c (tt_get_var_blend): Fix compiler warning. + +2016-12-14 Dave Arnold <darnold@adobe.com> + Werner Lemberg <wl@gnu.org> + + [sfnt, cff] Minor preparations. + + * include/freetype/tttags.h (TTAG_CFF2, TTAG_HVAR, TTAG_MVAR, + TTAG_VVAR): New SFNT table tags. + + * src/cff/cf2fixed.h (CF2_FIXED_ONE, CF2_FIXED_EPSILON): Add cast. + +2016-12-10 Werner Lemberg <wl@gnu.org> + + [truetype, type1] Add `get_var_blend' to MM service. + + For internal use; we want to share code between the forthcoming CFF2 + support and TrueType. + + * include/freetype/internal/services/svmm.h (FT_Get_Var_Blend_Func): + New typedef. + (MultiMasters): Add `get_var_blend'. + (FT_Service_MultiMasters): Updated. + + * src/truetype/ttgxvar.c (tt_get_var_blend): New function. + * src/truetype/ttgxvar.h: Updated. + + * src/truetype/ttdriver.c (tt_service_gx_multi_masters): Updated. + * src/type1/t1driver.c (t1_service_multi_masters): Updated. + +2016-12-10 Werner Lemberg <wl@gnu.org> + + [truetype, type1] Add `done_blend' to MM service. + + For internal use; we want to share code between the forthcoming CFF2 + support and TrueType. + + * include/freetype/internal/services/svmm.h (FT_Done_Blend_Func): + New typedef. + (MultiMasters): Add `done_blend'. + (FT_Service_MultiMasters): Updated. + + * src/truetype/ttgxvar.c (tt_done_blend): Use `TT_Face' as argument. + * src/truetype/ttgxvar.h: Updated. + + * src/truetype/ttobjs.c (TT_Face_Done): Updated. + + * src/truetype/ttdriver.c (tt_service_gx_multi_masters): Updated. + * src/type1/t1driver.c (t1_service_multi_masters): Updated. + +2016-12-09 Werner Lemberg <wl@gnu.org> + + [sfnt] Revert change from 2016-12-08. + + I missed the functionality of `ft_module_get_service', which makes + the change unnecessary. + +2016-12-08 Werner Lemberg <wl@gnu.org> + + Add framework to support services with 8 functions. + + We will need this for CFF variation font support. + + * include/freetype/internal/ftserv.h (FT_DEFINE_SERVICEDESCREC8): + New macro. + +2016-12-08 Werner Lemberg <wl@gnu.org> + + [sfnt] Add `get_glyph_name' and `get_name_index' to SFNT interface. + + CFF2 fonts will need access to those two functions. + + * include/freetype/internal/sfnt.h: Include FT_SERVICE_GLYPH_DICT_H. + (SFNT_Interface): Add `get_glyph_name' and `get_name_index' members. + (FT_DEFINE_SFNT_INTERFACE): Updated. + + * src/sfnt/sfdriver.c (sfnt_get_glyph_name, sfnt_get_name_index): + Fix signatures to exactly correspond to the glyph dict service + function typedefs. + (sfnt_interface): Updated. + +2016-12-06 Dave Arnold <darnold@adobe.com> + + Add `FT_Get_Var_Design_Coordinates' function. + + Note that the low-level functions aren't implemented yet. + + * include/freetype/ftmm.h: Declare. + + * include/freetype/internal/services/svmm.h + (FT_Get_Var_Design_Func): New typedef. + (MultiMasters): New MM service function `get_var_design'. + (FT_DEFINE_SERVICE_MULTIMASTERSREC): Updated. + Update all callers. + + * src/base/ftmm.c (FT_Get_Var_Design_Coordinates): Implement. + + * src/truetype/ttdriver.c: Updated. + + * src/truetype/ttgxvar.c (TT_Get_Var_Design): New dummy function to + handle `get_var_design' service. + * src/truetype/ttgxvar.h: Updated. + + * src/type1/t1driver.c: Updated. + + * src/type1/t1load.c (T1_Get_Var_Design): New dump function to + handle `get_var_design' service. + * src/type1/t1load.h: Updated. + +2016-12-06 Werner Lemberg <wl@gnu.org> + + * src/type1/t1load.c (parse_subrs): Fix memory leak. + + The `subrs' keyword might erroneously occur multiple times. + + Reported as + + https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=231 + +2016-12-01 Werner Lemberg <wl@gnu.org> + + [gzip] Improve building with external zlib (#49673). + + Building FreeType with external zlib 1.2.8 makes msvc 14 stop with + the following error. + + ftgzip.c + zlib-1.2.8\zlib.h(86): error C2061: + syntax error: identifier 'z_const' + zlib-1.2.8\zlib.h(94): error C2054: + expected '(' to follow 'z_const' + zlib-1.2.8\zlib.h(94): error C2085: + 'msg': not in formal parameter list + ... + zlib-1.2.8\zlib.h(877): fatal error C1003: + error count exceeds 100; stopping compilation + + The error happens because FreeType keeps an own copy of zlib-1.1.4 + under `src/gzip'. When building `src/gzip/ftgzip.c' with + FT_CONFIG_OPTION_SYSTEM_ZLIB defined, it uses + + #include <zlib.h> + + which correctly finds an external `zlib.h', but `zlib.h' itself has + a line + + #include "zconf.h" + + which makes Visual Studio 2015 find `src/gzip/zconf.h' while + compiling the files in `src/gzip'. + + * src/gzip/zconf.h: Rename to... + * src/gzip/ftzconf.h: ... this. + * src/gzip/zlib.h, src/gzip/rules.mk (GZIP_DRV_SRCS): Updated. + +2016-12-01 Oleksandr Chekhovskyi <oleksandr.chekhovskyi@gmail.com> + + [autofit] Fix Emscripten crash (patch #9180). + + Function calls through pointers must use a matching signature to + work on Emscripten, since such calls are dispatched through lookup + tables grouped by signature. + + * src/autofit/aftypes.h (AF_WritingSystem_ApplyHintsFunc): Fix + typedef. + +2016-11-29 Werner Lemberg <wl@gnu.org> + + [smooth] Revert previous commit. Already fixed with 6ca54c64. + +2016-11-29 Werner Lemberg <wl@gnu.org> + + [smooth] Avoid conditional jump on uninitialized value (#49711). + + * src/smooth/ftgrays.c (gray_raster_render): Initialize `worker'. + +2016-11-27 Nikolaus Waxweiler <madigens@gmail.com> + + [autofit] Code shuffling. + + Also improve some comments and remove unused code. + + No functional change. + + * src/autofit/afloader.c (af_loader_load_g): Merged with... + (af_loader_load_glyph): ...this function. + Split off emboldening code into... + (af_loader_embolden_glyph_in_slot): ... this function. + +2016-11-17 Werner Lemberg <wl@gnu.org> + + Better support of LLP64 systems with gcc (and clang). + + * builds/unix/configure.raw: Call `AC_TYPE_LONG_LONG_INT'. + + * builds/unix/ftconfig.in (FT_LONG64): Enable for LLP64 systems (and + suppress warnings) even without `FT_CONFIG_OPTION_FORCE_INT64'. + +2016-11-10 Werner Lemberg <wl@gnu.org> + + Fix `lcd_weights' array size. + + * include/freetype/internal/ftobjs.h (FT_LibraryRec): Do it. + + Reported by Nikolaus. + +2016-11-06 Werner Lemberg <wl@gnu.org> + + * src/base/ftobjs.c (FT_Render_Glyph_Internal): Fix tracing. + +2016-11-06 Werner Lemberg <wl@gnu.org> + + [sfnt] Improve FT_LOAD_BITMAP_METRICS_ONLY for `sbix' format. + + It's unavoidable to call the PNG engine, but to get the metrics it + is sufficient to read the PNG image's header only. + + * src/sfnt/pngshim.c (Load_SBit_Png): Add argument to control the + allocation of the glyph slot. + * src/sfnt/pngshim.h: Updated. + * src/sfnt/ttsbit.c (tt_sbit_decoder_load_png, + tt_face_load_sbix_image, tt_face_load_sbit_image): Updated. + +2016-11-06 Werner Lemberg <wl@gnu.org> + + [sfnt] Speed up `sbix' lookup. + + This also fixes a bug introduced in 2016-10-01 which prevents + display of embedded bitmap fonts that use the `sbix' format. + + * src/sfnt/ttsbit.c (tt_face_load_sbit): Store `sbix' size and + offset also in `ebdt_size' and `ebdt_start', respectively. This + makes the test for an embedded bitmap data table succeed for this + format. + + (tt_face_load_strike_metrics) <TT_SBIT_TABLE_TYPE_SBIX>: Use + `ebdt_size' and `ebdt_start' + (tt_face_load_sbix_image): Ditto. + +2016-11-06 Seigo Nonaka <nona@google.com> + Werner Lemberg <wl@gnu.org> + + Introduce a way of quickly retrieving (embedded) bitmap metrics. + + `FT_Load_Glyph' doesn't generate a bitmap for a non-bitmap glyph + until the user calls `FT_Render_Glyph'. However, it always + allocates memory for bitmaps and copies or decodes the contents of a + bitmap glyph, which can be quite slow for PNG data. + + * include/freetype/freetype.h (FT_LOAD_BITMAP_METRICS_ONLY): New + macro. + + * src/base/ftobjs.c (FT_Load_Glyph): Unset FT_LOAD_RENDER if + FT_LOAD_BITMAP_METRICS_ONLY is used. + + * src/sfnt/ttsbit.c (tt_sbit_decoder_alloc_bitmap, + tt_sbit_decoder_load_bitmap): Add argument to control allocation of + the glyph slot. + (tt_sbit_decoder_load_image, tt_sbit_decoder_load_compound, + tt_face_load_sbit_image): Updated. + + * src/pcf/pcfdrivr.c (PCF_Glyph_Load): Quickly exit if + `FT_LOAD_BITMAP_METRICS_ONLY' is set. + + * src/pfr/pfrsbit.c, src/pfr/pfrsbit.h (pfr_slot_load_bitmap): Add + argument to control allocation of the glyph slot. + * src/pfr/pfrobjs (pfr_slot_load): Updated. + + * src/winfonts/winfnt.c (FNT_Load_Glyph): Ditto. + + * docs/CHANGES: Updated. + +2016-11-06 Werner Lemberg <wl@gnu.org> + + Synchronize with gnulib (#49448). + + * include/freetype/config/ftconfig.h, builds/unix/ftconfig.in, + builds/vms/ftconfig.h (FT_TYPEOF): Update code to use definition in + current version of `intprops.h'. + Other minor synchronization to reduce code differences between the + three files. + +2016-11-03 Behdad Esfahbod <behdad@behdad.org> + + [truetype] Clamp variation requests to valid range. + + This is required by OpenType 1.8; it also avoids rounding surprises. + + * src/truetype/ttgxvar.c (TT_Set_Var_Design): Clamp design coordinates + outside of the allowed range to always stay within the range instead + of producing an error. + +2016-10-29 Werner Lemberg <wl@gnu.org> + + [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. + +2016-10-27 Werner Lemberg <wl@gnu.org> + + [truetype] Fix commit from 2014-11-24. + + Problem reported by Hin-Tak Leung <htl10@users.sourceforge.net>. + + * src/truetype/ttpload.c (tt_face_load_hdmx): Fix file checking + logic. + +2016-10-26 Werner Lemberg <wl@gnu.org> + + Add `FT_Get_{MM,Var}_Blend_Coordinates' functions. + + * include/freetype/ftmm.h: Declare. + + * include/freetype/internal/services/svmm.h (FT_Get_MM_Blend_Func): + New typedef. + (MultiMasters): New MM service function `get_mm_blend'. + (FT_DEFINE_SERVICE_MULTIMASTERSREC): Updated. + Update all callers. + + * src/base/ftmm.c (FT_Get_MM_Blend_Coordinates, + FT_Get_Var_Blend_Coordinates): Implement. + + * src/truetype/ttdriver.c: Updated. + + * src/truetype/ttgxvar.c (TT_Get_MM_Blend): New function to handle + `get_mm_blend' service. + * src/truetype/ttgxvar.h: Updated. + + * src/type1/t1driver.c: Updated. + + * src/type1/t1load.c (T1_Get_MM_Blend): New function to handle + `get_mm_blend' service. + * src/type1/t1load.h: Updated. + + * docs/CHANGES: Document. + +2016-10-26 Werner Lemberg <wl@gnu.org> + + * src/type1/t1load.c (parse_subrs): Fix limit check. + + Reported as + + https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=81 + +2016-10-25 Alexei Podtelezhnikov <apodtele@gmail.com> + + [cff] Correct cmap format reporting (#24819). + + * src/cff/cffdrivr.c (cff_get_cmap_info): Throw an error on synthetic + charmap instead of guessing its format and language. + +2016-10-22 Werner Lemberg <wl@gnu.org> + + [truetype] Fix SCANTYPE instruction (#49394). + + * src/truetype/ttinterp.c (Ins_SCANTYPE): Only use lower 16bits. + +2016-10-22 Werner Lemberg <wl@gnu.org> + + [sfnt] Improve handling of invalid post 2.5 tables [#49393]. + + * src/sfnt/ttpost.c (load_format_25): We need at least a single + table entry. + +2016-10-14 Werner Lemberg <wl@gnu.org> + + [truetype] Fix handling of `cvar' table data. + + Reported as + + https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=53 + + * src/truetype/ttgxvar.c (tt_face_vary_cvt): Ignore invalid CVT + indices. + +2016-10-11 Werner Lemberg <wl@gnu.org> + + [psaux] Fix handling of invalid flex subrs. + + Problem reported as + + https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=52 + + * src/psaux/t1decode.c (t1_decoder_parse_charstrings) + <op_callothersubr>: Set `flex_state' after error checking. + +2016-10-11 Werner Lemberg <wl@gnu.org> + + * src/truetype/ttgxvar.c (tt_done_blend): Fix deallocation. + +2016-10-08 Werner Lemberg <wl@gnu.org> + + * src/cid/cidload.c (cid_face_open): Properly propagate `error'. + +2016-10-08 Werner Lemberg <wl@gnu.org> + + [cid] Fix parsing of subr offsets. + + Bug introduced 2016-05-16. + + * src/cid/cidparse.c (cid_parser_new): Fix off-by-one error. + +2016-10-01 Werner Lemberg <wl@gnu.org> + + [sfnt] Disable bitmap strikes if we don't have a bitmap data table. + + * src/sfnt/ttsbit.c (tt_face_load_sbit): Check whether we have + a bitmap data table. + +2016-10-01 Alexei Podtelezhnikov <apodtele@gmail.com> + + [smooth] Remove impossibility. + + * src/smooth/ftgrays.c (TWorker): Rearrange fields. + (gray_convert_glyph): Remove impossible condition and clean up. + +2016-09-29 Werner Lemberg <wl@gnu.org> + + [pcf] Enrich family name with foundry name and glyph width info. + + This is a very old patch from openSuSE (from 2006, submitted to + FreeType in 2011) that I forgot to apply. + + https://build.opensuse.org/package/view_file/openSUSE:Factory/freetype2/freetype2-bitmap-foundry.patch + + Prepend the foundry name plus a space to the family name. There are + many fonts just called `Fixed' which look completely different, and + which have nothing to do with each other. When selecting `Fixed' in + KDE or Gnome one gets results that appear rather random, the style + changes often if one changes the size and one cannot select some + fonts at all. + + We also check whether we have `wide' characters; all put together, + we get family names like `Sony Fixed' or `Misc Fixed Wide'. + + * src/pcf/pcfread.c (pcf_load_font): Implement it. + + * docs/CHANGES: Document it. + +2016-09-29 Werner Lemberg <wl@gnu.org> + + [ftfuzzer] Speed up. + + * src/tools/ftfuzzer/ftfuzzer.cc (LLVMFuzzerTestOneInput): Don't + check for embedded bitmaps if we have a non-default instance. + +2016-09-29 Werner Lemberg <wl@gnu.org> + + [truetype] Disallow bitmap strikes for non-default instances. + + Also speed up access of default instances if GX variations are + active. + + * include/freetype/internal/tttypes.h (TT_FaceRec): Add + `is_default_instance' member. + + * src/sfnt/sfobjs.c (sfnt_init_face): Initialize + `is_default_instance'. + + * src/truetype/ttgload.c (TT_Process_Simple_Glyph, + load_truetype_glyph): Add test for default instance. + (TT_Load_Glyph): Load embedded bitmaps for default instance only. + + * src/truetype/ttgxvar.c (TT_Set_MM_Blend): Compute + `is_default_instance'. + +2016-09-29 Werner Lemberg <wl@gnu.org> + + [truetype] Clean up `TT_Face' structure. + + * include/freetype/internal/tttypes.h (TT_FaceRec): Remove unused + fields `horz_metrics' and `vert_metrics'. + Update documentation. + + * src/sfnt/sfobjs.c (sfnt_done_face): Updated. + +2016-09-28 Werner Lemberg <wl@gnu.org> + + More FT_ZERO usage. + + * src/gxvalid/gxvcommn.c (gxv_ClassTable_validate): + s/ft_memset/FT_MEM_ZERO/. + + * src/psaux/t1decode.c (t1_decoder_parse_charstrings): + s/ft_memset/FT_ARRAY_ZERO/. + + * src/raster/ftraster.c (FT_ZERO): Define. + (ft_black_new): Use it. + * src/raster/ftrend1.c (ft_raster1_get_cbox): + s/FT_MEM_ZERO/FT_ZERO/. + + * src/smooth/ftgrays.c (FT_ZERO): Define. + (gray_raster_new): Use it. + * src/smooth/ftsmooth.c (ft_smooth_get_cbox): + s/FT_MEM_ZERO/FT_ZERO/. + +2016-09-28 Werner Lemberg <wl@gnu.org> + + */*: s/FT_MEM_ZERO/FT_ZERO/ where appropriate. + +2016-09-27 Werner Lemberg <wl@gnu.org> + + [truetype] Trace number of executed opcodes. + + * src/truetype/ttinterp.c (TT_RunIns): Implement it. + +2016-09-27 Werner Lemberg <wl@gnu.org> + + [truetype] Speed up `TT_Load_Glyph'. + + This avoids additional calls to `tt_face_lookup_table' for the + `glyf' table, which can be expensive. + + * include/freetype/internal/tttypes.h (TT_LoaderRec): Move + `glyf_offset' field to ... + (TT_FaceRec): ... this structure. + * src/truetype/ttgload.c (load_truetype_glyph): Updated. + (tt_loader_init): Move initialization of `glyf_offset' to ... + * src/truetype/ttpload.c (tt_face_load_loca): ... this function. + +2016-09-27 Werner Lemberg <wl@gnu.org> + + [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. + +2016-09-25 Werner Lemberg <wl@gnu.org> + + [truetype] Sanitize only last entry of `loca' table. + + Without this patch, a loca sequence like `0 100000 0 100000 ...', + where value 100000 is larger than the `glyf' table size, makes + FreeType handle the whole `glyf' table as a single glyph again and + again, which is certainly invalid (and can be very slow, too). + + * src/truetype/ttpload.c (tt_face_get_location): Implement. + Improve tracing messages. + +2016-09-25 Werner Lemberg <wl@gnu.org> + + * src/tools/ftfuzzer/ftfuzzer.cc (LLVMFuzzerTestOneInput): Fix typo. + +2016-09-24 Werner Lemberg <wl@gnu.org> + + [autofit] Tracing fixes. + + * src/autofit/afmodule.c (af_autofitter_load_glyph): Call dumping + functions only if we actually do tracing. + +2016-09-22 Alexei Podtelezhnikov <apodtele@gmail.com> + + [smooth] Reduce divisions in the line renderer. + + We don't need some divisions if a line segments stays within a single + row or a single column of pixels. + + * src/smooth/ftgrays.c (gray_render_line) [FT_LONG64]: Make divisions + conditional. + +2016-09-15 Alexei Podtelezhnikov <apodtele@gmail.com> + + * src/smooth/ftgrays.c (gray_sweep): Remove check for empty table. + +2016-09-14 Alexei Podtelezhnikov <apodtele@gmail.com> + + [smooth] Another tiny speed-up. + + * src/smooth/ftgrays.c (gray_find_cell): Merge into... + (gray_record_cell): ... this function. + +2016-09-11 Alexei Podtelezhnikov <apodtele@gmail.com> + + * src/smooth/ftgrays.c (gray_{find,set}_cell): Remove dubious code. + +2016-09-11 Alexei Podtelezhnikov <apodtele@gmail.com> + + [smooth] Fix valgrind warning and reoptimize. + + The algorithm calls `gray_set_cell' at the start of each new contour + or when the contours cross the cell boundaries. Double-checking for + that is wasteful. + + * src/smooth/ftgrays.c (gray_set_cell): Remove check for a new cell. + (gray_convert_glyph): Remove initialization introduced by 44b172e88. + +2016-09-10 Werner Lemberg <wl@gnu.org> + + [sfnt] Fix previous commit. + + Problems reported as + + https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=40 + + We now map the strike index right before accessing the physical + data, not earlier. + + * src/sfnt/sfobjs.c (sfnt_load_face): Set `face->sbit_strike_map' + after creating the map so that... + + * src/sfnt/ttsbit.c (tt_face_load_strike_metrics): ... this function + can be used before and after setting up `sbit_strike_map'. + (tt_face_set_sbit_strike): Revert change. + (tt_sbit_decoder_init, tt_face_load_sbix_image): Map strike index. + + * src/truetype/ttdriver.c (tt_size_select): Revert change. + +2016-09-09 Werner Lemberg <wl@gnu.org> + + [ftfuzzer] Minor improvements. + + * src/tools/ftfuzzer/ftfuzzer.cc (LLVMFuzzerTestOneInput): Ignore + invalid strikes. + Use better values for call to `FT_Set_Char_Size'. + +2016-09-09 Werner Lemberg <wl@gnu.org> + + [sfnt] Don't provide (completely) broken strike data. + + FreeType tries to sanitize strike header data; we now reject + completely broken ones. + + * include/freetype/internal/tttypes.h (TT_FaceRec): New + `sbit_strike_map' array pointer. + + * src/base/ftobjs.c (FT_Match_Size): Reject matches where either + width or height would be zero. + Add tracing message in case of error. + + * src/sfnt/sfobjs.c (sfnt_load_face): Populate `sbit_strike_map', + only using (more or less) valid strike header data for + FT_Face's `available_sizes' array. + (sfnt_done_face): Updated. + + * src/sfnt/ttsbit.c (tt_face_set_sbit_strike): Use + `sbit_strike_map'. + (tt_face_load_strike_metrics): Improve tracing. + + * src/truetype/ttdriver.c (tt_size_select): Use `sbit_strike_map'. + +2016-09-08 Werner Lemberg <wl@gnu.org> + + * Version 2.7 released. + ======================= + + + Tag sources with `VER-2-7'. + + * docs/VERSION.TXT: Add entry for version 2.7. + + * 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/2.6.5/2.7/, s/265/27/. + + * include/freetype/freetype.h (FREETYPE_MINOR): Set to 7. + (FREETYPE_PATCH): Set to 0. + + * builds/unix/configure.raw (version_info): Set to 18:6:12. + * CMakeLists.txt (VERSION_MINOR): Set to 7. + (VERSION_PATCH): Set to 0. + + * docs/CHANGES: Updated. + +2016-09-08 Werner Lemberg <wl@gnu.org> + + * src/truetype/ttinterp.c: Include `ttgxvar.h'. + + This fixes the `multi' build. + +2016-09-08 Werner Lemberg <wl@gnu.org> + + [autofit] Another improvement to Armenian support. + + Suggested by Hrant H Papazian <hpapazian@gmail.com>. + + * src/autofit/afscript.h: Use better suited characters to derive + default stem widths. + +2016-09-07 Alexei Podtelezhnikov <apodtele@gmail.com> + + * src/smooth/ftgrays.c (gray_hline): Micro-optimize. + +2016-09-06 Alexei Podtelezhnikov <apodtele@gmail.com> + + [smooth] Operate in absolute bitmap coordinates. + + Simpler bitmap addressing improves performance by 1.5%. + + * src/smooth/ftgrays.c (gray_TWorker): Remove count fields. + (gray_dump_cells, gray_find_cell, gray_set_cell, gray_hline, + gray_sweep, gray_convert_glyph, gray_raster_render): Updated. + +2016-09-06 Alexei Podtelezhnikov <apodtele@gmail.com> + + [smooth] Improve contour start (take 2). + + * src/smooth/ftgrays.c (gray_move_to): Call `gray_set_cell' directly + instead of... + (gray_start_cell): ... this function, which is removed. + (gray_convert_glyph): Make initial y-coordinate invalid. + +2016-09-06 Werner Lemberg <wl@gnu.org> + + [type1] MM fonts support exactly zero named instances (#48748). + + * src/type1/t1load.c (T1_Get_MM_Var): Set `num_namedstyles' to zero. + +2016-09-06 Jonathan Kew <jfkthame@gmail.com> + + [cff] Fix uninitialized memory. + + Problem reported as + + https://bugzilla.mozilla.org/show_bug.cgi?id=1270288 + + * src/cff/cf2intrp.c (cf2_interpT2CharString): Initialize `storage' + array to handle a `get' opcode without a previous `put'. + +2016-09-05 Alexei Podtelezhnikov <apodtele@gmail.com> + + * src/smooth/ftgrays.c (gray_move_to, gray_start_cell): Revert. + +2016-09-05 Alexei Podtelezhnikov <apodtele@gmail.com> + + [smooth] Improve contour start. + + * src/smooth/ftgrays.c (gray_move_to): Call `gray_set_cell' directly + instead of... + (gray_start_cell): ... this function, which is removed. + +2016-09-05 Werner Lemberg <wl@gnu.org> + + [cff] Fix memory initialization. + + * src/cff/cf2stack.c (cf2_stack_init): Use `FT_NEW'. The `Q' + variants of FreeType's memory allocation macros don't do zeroing. + +2016-09-05 Werner Lemberg <wl@gnu.org> + + [ftrandom] Minor improvements. + + * src/tools/ftrandom/ftrandom.c (_XOPEN_SOURCE): New macro, set to + 500. + + * src/tools/ftrandom/Makefile (CFLAGS): Split off include + directories to ... + (INCLUDES): ... this new variable. + (LDFLAGS): New variable. + (ftrandom.o, ftrandom): Updated. + +2016-09-05 Werner Lemberg <wl@gnu.org> + + [autofit] Improve Armenian support. + + Thanks to Hrant H Papazian <hpapazian@gmail.com> for help. + + * src/autofit/afblue.dat (AF_BLUE_STRING_ARMENIAN_*): Improve + selection of characters. + + * src/autofit/afblue.c, src/autofit/afblue.h: Regenerated. + +2016-09-04 Werner Lemberg <wl@gnu.org> + + [ftrandom] Improve Makefile. + + It now supports both a normal build (`./configure && make') and a + development build (`make devel'). + + * src/tools/ftrandom/Makefile (VPATH): Set it so that + `libfreetype.a' gets searched in both `objs' (for the development + build) and `objs/.libs' (for a normal build which uses libtool). + (LIBS): Add missing libraries. + (ftrandom.o): New rule. + (ftrandom): Use automatic variables. + +2016-09-03 Werner Lemberg <wl@gnu.org> + + [truetype] More fixes for handling of GX deltas. + + Problems reported by Bob Taylor <Bob.Taylor@monotype.com>. + + * src/truetype/ttgxvar.c (TT_Vary_Apply_Glyph_Deltas): Fix rough + sanity test for glyph variation array header size. + Always set stream position before reading packed x and y deltas. + Fix thinko w.r.t. `localpoints' array. + +2016-09-03 Werner Lemberg <wl@gnu.org> + + [ftrandom] Various fixes. + + * src/tools/ftrandom/ftrandom.c (GOOD_FONTS_DIR): Provide better + default. + (error_fraction): Make it of type `double' to work as advertized – + this was completely broken. + Update all related code. + (error_count, fcnt): Make it unsigned to fix compiler warnings. + Update all related code. + (fontlist): Change `len' member to `long' to fix compiler warnings. + (FT_MoveTo, FT_LineTo, FT_ConicTo, FT_CubicTo, abort_test): Tag + unused variables. + (TestFace, FindFonts, copyfont, do_test): Fix compiler warnings. + (ExecuteTest): Ditto. + Call `FT_Done_FreeType'. + (getErrorCnt): Replace `ceil' with an ordinary cast to `unsigned + int'. + (usage): Improve output. + (main): Fix compiler warnings. + + * src/tools/ftrandom/README: Updated. + +2016-09-03 Werner Lemberg <wl@gnu.org> + + [base] Avoid negative bitmap strike dimensions (#48985). + + * src/base/ftobjs.c (FT_Open_Face): Check whether negation was + actually successful. For example, this can fail for value + -32768 if the type is `signed short'. If there are problems, + disable the strike. + +2016-09-03 Werner Lemberg <wl@gnu.org> + + [cff] Avoid null pointer passed to FT_MEM_COPY (#48984). + + * src/cff/cffload.c (cff_index_get_name): Check `byte_len'. + +2016-09-02 Werner Lemberg <wl@gnu.org> + + [unix] Enable 64bit support in file system access (#48962). + + * builds/unix/configure.raw: Call `AC_SYS_LARGEFILE'. + +2016-09-02 Werner Lemberg <wl@gnu.org> + + [sfnt] Avoid left shift of negative value (#48980). + + * src/sfnt/ttsbit.c (tt_sbit_decoder_load_bit_aligned): Use unsigned + constant. + +2016-09-02 Werner Lemberg <wl@gnu.org> + + * src/smooth/ftgrays.c (gray_hline): Fix clang compiler warnings. + +2016-09-02 Werner Lemberg <wl@gnu.org> + + Some preparations for the next release. + + * include/freetype/config/ftoption.h + (TT_CONFIG_OPTION_SUBPIXEL_HINTING): Enable. + + * docs/CHANGES: Updated. + +2016-09-01 Alexei Podtelezhnikov <apodtele@gmail.com> + + [smooth] Simplify span rendering more. + + It turns out that there is significant cost associated with `FT_Span' + creation and calls to `gray_render_span' because it happens so + frequently. This removes these steps from our internal use but leaves + it alone for `FT_RASTER_FLAG_DIRECT" to preserve API. The speed gain + is about 5%. + + * src/smooth/ftgrays.c (gray_render_span): Removed. The code is + migrated to... + (gray_hline): ... here. + +2016-08-30 Alexei Podtelezhnikov <apodtele@gmail.com> + + [smooth] Streamline pixmap drawing a bit more. + + Zero coverage is unlikely (1 out of 256) to warrant checking. This + gives 0.5% speed improvement in rendering simple glyphs. + + * src/smooth/ftgrays.c (gray_hline, gray_render_span): Remove checks. + +2016-08-29 Alexei Podtelezhnikov <apodtele@gmail.com> + + [smooth] Streamline pixmap drawing. + + This gives 2% speed improvement in rendering simple glyphs. + + * src/smooth/ftgrays.c (TPixmap): Reduced pixmap descriptor with a + pointer to its bottom-left and pitch to be used in... + (gray_TWorker): ... here. + (gray_render_span): Move pixmap flow check from here... + (gray_raster_render): .. to here. + +2016-08-27 Alexei Podtelezhnikov <apodtele@gmail.com> + + [smooth] Reduce stack of band boundaries. + + * src/smooth/ftgrays.c (gray_TBand): Removed. + (gray_convert_glyph): Updated to stack band boundaries concisely. + +2016-08-26 Werner Lemberg <wl@gnu.org> + + * src/cid/cidload.c (cid_face_open): Improve handling of `SDBytes'. + +2016-08-26 Werner Lemberg <wl@gnu.org> + + [cid] Fix commit from 2016-05-16. + + * src/cid/cidparse.c (cid_parser_new): Fix off-by-one errors. + +2016-08-26 Werner Lemberg <wl@gnu.org> + + [sfnt] Cache offset and size to bitmap data table. + + This commit avoids `EBDT' and friends being looked up again and + again while loading a single embedded bitmap. + + * include/freetype/internal/tttypes.h (TT_FaceRec) + [TT_CONFIG_OPTION_EMBEDDED_BITMAPS]: New fields `ebdt_start' and + `ebdt_size'. + + * src/sfnt/ttsbit.c (tt_sbit_decoder_init): Move table lookup to ... + (tt_face_load_sbit): ... this function; also store the table size + and offset. + +2016-08-26 Alexei Podtelezhnikov <apodtele@gmail.com> + + * src/smooth/ftgrays.c (gray_raster_render): Minor tweaks. + +2016-08-26 Werner Lemberg <wl@gnu.org> + + [type1] Fix heap buffer overflow. + + Reported as + + https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=36 + + * src/type1/t1load.c (parse_charstrings): Reject fonts that don't + contain glyph names. + +2016-08-25 Werner Lemberg <wl@gnu.org> + + [sfnt] Fix previous commit (#48901). + + * src/sfnt/ttcmap.c (tt_cmap4_char_map_binary): Thinkos. + +2016-08-25 Werner Lemberg <wl@gnu.org> + + [sfnt] Speed up handling of invalid format 4 cmaps. + + * src/sfnt/ttcmap.c (tt_cmap4_next, tt_cmap4_char_map_binary): Add + tests for `num_glyph' from `tt_cmap4_char_map_linear'. + +2016-08-25 Werner Lemberg <wl@gnu.org> + + * include/freetype/internal/ftdriver.h: Remove unused typedefs. + +2016-08-22 Alexei Podtelezhnikov <apodtele@gmail.com> + + [smooth] Simplify span rendering. + + This removes unnecessary complexity of span merging and buffering. + Instead, the spans are rendered as they come, speeding up the + rendering by about 5% as a result. + + * src/smooth/ftgrays.c [FT_MAX_GRAY_SPANS]: Macro removed. + (gray_TWorker): Remove span buffer and related fields. + (gray_sweep, gray_hline): Updated. + + * include/freetype/ftimage.h: Remove documentation note about + `FT_MAX_GRAY_SPANS', which was never in `ftoption.h' and is now gone. + +2016-08-16 Werner Lemberg <wl@gnu.org> + + [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. + +2016-08-16 Werner Lemberg <wl@gnu.org> + + [lzw] Optimize last commit. + + * src/lzw/ftzopen.c (ft_lzwstate_get_code): Move check into + conditional clause. + +2016-08-16 Werner Lemberg <wl@gnu.org> + + [lzw] Avoid invalid left shift. + + Reported as + + https://bugzilla.mozilla.org/show_bug.cgi?id=1295366 + + * src/lzw/ftzopen.c (ft_lzwstate_get_code): Limit `num_bits'. + +2016-08-16 Werner Lemberg <wl@gnu.org> + + [lzw] Avoid buffer overrun. + + Reported as + + https://bugzilla.mozilla.org/show_bug.cgi?id=1273283 + + * src/lzw/ftzopen.c (ft_lzwstate_refill): Ensure `buf_size' doesn't + underflow. + +2016-08-16 Werner Lemberg <wl@gnu.org> + + [truetype] Fix compiler warning. + + * src/truetype/ttgload.c (load_truetype_glyph): Add cast. + +2016-08-13 Werner Lemberg <wl@gnu.org> + + [winfonts] Avoid zero bitmap width and height. + + Reported as + + https://bugzilla.mozilla.org/show_bug.cgi?id=1272173 + + * src/winfonts/winfnt.c (FNT_Face_Init): Check zero pixel height. + (FNT_Load_Glyph): Check for zero pitch. + +2016-08-11 Alexei Podtelezhnikov <apodtele@gmail.com> + + * src/truetype/ttinterp.c (Pop_Push_Count): Revert changes. + +2016-08-11 Alexei Podtelezhnikov <apodtele@gmail.com> + + * src/truetype/ttinterp.c (TT_RunIns): Minor and formatting. + +2016-08-11 Alexei Podtelezhnikov <apodtele@gmail.com> + + * src/truetype/ttinterp.c (Pop_Push_Count): Fix some entries. + +2016-08-10 Peter Klotz <Peter.Klotz@ith-icoserve.com> + + * src/smooth/ftgrays.c (gray_hline): Fix uninitialized access. + +2016-08-10 Werner Lemberg <wl@gnu.org> + + [sfnt] Use correct type for `italicAngle' field (#48732). + + * src/sfnt/ttload.c (tt_face_load_post): Fix types. + +2016-08-06 Jon Spencer <jon@jonspencer.ca> + + [sfnt] Fix `FT_Get_Advance' for bitmap strikes. + + `FT_Get_Advance' returns 0 for bitmap fonts. It first gets the + advance value from the font table and then scales it by the + `font->size->metrics->x_scale' field. But `FT_Select_Size' doesn't + set that value for bitmap fonts and the advance gets scaled to zero. + + Taken from + + https://github.com/behdad/harfbuzz/issues/252 + + * src/sfnt/ttsbit.c (tt_face_load_strike_metrics) + <TT_SBIT_TABLE_TYPE_EBLC>: Set scale values. + +2016-08-06 Behdad Esfahbod <behdad@behdad.org> + + [truetype] Fix GX variation handling of composites. + + * src/truetype/ttgload.c (load_truetype_glyph) + [TT_CONFIG_OPTION_GX_VAR_SUPPORT]: Check `ARGS_ARE_XY_VALUES' flag. + +2016-08-05 Alexei Podtelezhnikov <apodtele@gmail.com> + + [smooth] Minor refactoring. + + * src/smooth/ftgrays.c (gray_render_scanline, gray_render_line): + Updated. + +2016-07-29 Werner Lemberg <wl@gnu.org> + + [sfnt, truetype] Don't abort on invalid `maxComponentDepth'. + + Since 2016-05-16 we detect infinite recursion directly. + + * src/sfnt/ttload.c (tt_face_load_maxp): Don't adjust + `maxComponentDepth'. + * src/truetype/ttgload.c (load_truetype_glyph): Don't abort if + `maxComponentDepth' is not valid. Instead, simply adjust its value + and emit a tracing message. + +2016-07-26 Werner Lemberg <wl@gnu.org> + + * src/autofit/aflatin.c (af_latin_metrics_scale_dim): Minor. + + No functional change. + +2016-07-22 Hin-Tak Leung <htl10@users.sourceforge.net> + + [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. + +2016-07-19 Werner Lemberg <wl@gnu.org> + + [truetype] Sanitizer fix, second try. + + * src/truetype/ttgxvar.c (ft_var_readpackedpoints): Fix boundary + tests and use only one slot more. + +2016-07-19 Werner Lemberg <wl@gnu.org> + + [truetype] Sanitizer fix. + + * src/truetype/ttgxvar.c (ft_var_readpackedpoints): Increase array + to fix nested loops. + +2016-07-18 Werner Lemberg <wl@gnu.org> + + [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. + +2016-07-17 Werner Lemberg <wl@gnu.org> + + [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. + +2016-07-16 Werner Lemberg <wl@gnu.org> + + [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. + +2016-07-16 Werner Lemberg <wl@gnu.org> + + [truetype] Fix GETINFO bytecode instruction. + + * src/truetype/ttinterp.c (Ins_GETINFO): Fix return value for + stretching information. + +2016-07-16 Behdad Esfahbod <behdad@behdad.org> + + [truetype] Make all glyphs in `Zycon' GX font work. + + * src/truetype/ttgxvar.c (ft_var_readpackedpoints): Fix boundary + tests. + +2016-07-16 Werner Lemberg <wl@gnu.org> + + [truetype] Fix GX delta tracing. + + * src/truetype/ttgxvar.c (TT_Vary_Apply_Glyph_Deltas): Trace + relative point movements. + +2016-07-16 Behdad Esfahbod <behdad@behdad.org> + + [truetype] More fixes for GX. + + This finally fixes the rendering of the cyclist and the lizard in + the `Zycon' font. + + * src/truetype/ttgxvar.c (ft_var_readpackedpoints): `first' point + index is always cumulative. + + (tt_handle_deltas): Rename to... + (tt_interpolate_deltas): ... This. + Add new parameter for output point array. + Update caller. + + (TT_Vary_Apply_Glyph_Deltas): Add `points_out' array; it now holds + the intermediate results of `tt_interpolate_deltas' that are to be + added to `outline->points'. + +2016-07-15 Werner Lemberg <wl@gnu.org> + + * src/autofit/aflatin.c (af_latin_hints_compute_segments): Thinko. + + `max_pos' is always larger than `min_pos' so `FT_ABS' is not needed. + + Reported by Alexei. + +2016-07-16 Nikolaus Waxweiler <madigens@gmail.com> + + * src/truetype/ttinterp.c (Ins_MIRP): Fix copy-and-paste error. + + Problem reported by Hin-Tak Leung. + +2016-07-15 Werner Lemberg <wl@gnu.org> + + [autofit] Update and improve segment and edge tracing. + + * src/autofit/afhints.c (af_glyph_hints_dump_segments): Trace + `delta' also. + Don't show first point of segment as a replacement for `pos'; this + is (a) misleading, since the difference to `pos' can be almost + arbitrarily large in corner cases, and (b) it is better to have all + segment data in font units instead of a single value given in output + space coordinates. + Improve layout. + (af_glyph_hints_dump_edges): Show px->units and units->px conversion + values for convenience. + Improve layout. + +2016-07-15 Werner Lemberg <wl@gnu.org> + + [autofit] For edges, reject segments wider than 1px (#41334). + + * src/autofit/afhints.h (AF_SegmentRec): New member `delta'. + + * src/autofit/aflatin.c (af_latin_hints_compute_segments): Compute + `delta'. + (af_latin_hints_compute_edges): Reject segments with a delta larger + than 0.5px. + +2016-07-14 Werner Lemberg <wl@gnu.org> + + * include/freetype/freetype.h (FT_IS_NAMED_INSTANCE): New macro. + +2016-07-14 Werner Lemberg <wl@gnu.org> + + [sfnt] Fix `face_index' value in `FT_Face' for named instances. + + * src/sfnt/sfobjs.c (sfnt_init_face): Don't strip off higher 16bits. + +2016-07-14 Werner Lemberg <wl@gnu.org> + + * src/truetype/ttgxvar.c (TT_Vary_Apply_Glyph_Deltas): Fix tracing. + +2016-07-14 Behdad Esfahbod <behdad@behdad.org> + + [truetype] Fix gxvar delta interpolation. + + The coordinates of the base font should be used for interpolation + purposes, NOT the current points (i.e., the result of accumulation + of previous deltas). + + * src/truetype/ttgxvar.c (TT_Vary_Apply_Glyph_Deltas): Initialize + `points_org' before looping over all tuples. + + +---------------------------------------------------------------------------- + +Copyright 2016-2018 by +David Turner, Robert Wilhelm, and Werner Lemberg. + +This file is part of the FreeType project, and may only be used, modified, +and distributed under the terms of the FreeType project license, +LICENSE.TXT. By continuing to use, modify, or distribute this file you +indicate that you have read the license and understand and accept it +fully. + + +Local Variables: +version-control: never +coding: utf-8 +End: |