Commit 6f2b6f8f72ffb5017ab00fca83185b21f1a9f56d
2017-09-24T17:42:38
Split off ChangeLog.27.
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diff --git a/ChangeLog b/ChangeLog
index 169cf05..47811d1 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -3274,2095 +3274,6 @@
* src/truetype/ttgxvar.c (ft_var_load_hvar): Check axis count.
(ft_var_load_avar): Fix tracing message.
-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.
-
----------------------------------------------------------------------------
diff --git a/ChangeLog.27 b/ChangeLog.27
new file mode 100644
index 0000000..e61d551
--- /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 2016-2017 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: