diff --git a/ChangeLog b/ChangeLog index 5051fa425..e060cbdf7 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1951,3129 +1951,10 @@ * build/windows/vc2010/freetype.vcxproj: Use MaxSpeed (/02) optimization for Release configuration throughout the project. -2017-09-16 Werner Lemberg - - * Version 2.8.1 released. - ========================= - - - Tag sources with `VER-2-8-1'. - - * docs/VERSION.TXT: Add entry for version 2.8.1. - * docs/CHANGES: Updated. - - * README, Jamfile (RefDoc), builds/windows/vc2005/freetype.vcproj, - builds/windows/vc2005/index.html, - builds/windows/vc2008/freetype.vcproj, - builds/windows/vc2008/index.html, - builds/windows/vc2010/freetype.vcxproj, - builds/windows/vc2010/index.html, - builds/windows/visualc/freetype.dsp, - builds/windows/visualc/freetype.vcproj, - builds/windows/visualc/index.html, - builds/windows/visualce/freetype.dsp, - builds/windows/visualce/freetype.vcproj, - builds/windows/visualce/index.html, - builds/wince/vc2005-ce/freetype.vcproj, - builds/wince/vc2005-ce/index.html, - builds/wince/vc2008-ce/freetype.vcproj, - builds/wince/vc2008-ce/index.html: s/2.8/2.8.1/, s/28/281/. - - * include/freetype/freetype.h (FREETYPE_PATCH): Set to 1. - - * builds/unix/configure.raw (version_info): Set to 21:0:15. - * CMakeLists.txt (VERSION_PATCH): Set to 1. - -2017-09-13 suzuki toshiya - - [sfnt] lowest gcc for vectors (e1d0249e) is changed to 4.7. - - __builtin_shuffle() was introduced in gcc-4.7. The lowest - gcc to enable vector operation is delayed from 4.6 to 4.7. - - * src/sfnt/pngshim.c (premultiply_data): Fix cpp-macro to - enable the vector operation, to change the lowest gcc version - from 4.6 to 4.7. - -2017-09-13 suzuki toshiya - - [cache] Fix a possible overflow by signed integer comparison. - - Improve the code by 5d3ff05615dda6d1325ed612381a17a0df04c975 , - issues are found by Behdad Esfahbod and Werner Lemberg. - - * src/cache/ftcbasic.c (FTC_ImageCache_Lookup): Replace - a subtraction to check higher bit by a bit operation, - and cpp-conditionalize for appropriate systems. Add better - documentation to the comment. - (FTC_ImageCache_LookupScaler): Ditto. - (FTC_SBitCache_Lookup): Ditto. - (FTC_SBitCache_LookupScaler): Ditto. - -2017-09-13 Werner Lemberg - - [autofit] Really fix #41334 (#52000). - - * src/autofit/aflatin.c (af_latin_hints_compute_segments): Set - `segment->delta' everywhere. - -2017-09-12 suzuki toshiya - - [autofit, sfnt] Fix for `make multi'. - - * src/autofit/afshaper.c: Include FT_ADVANCE_H, to use - FT_Get_Advance() in it. - * src/sfnt/ttcmap.c: Include FT_SERVICE_POSTSCRIPT_CMAPS_H - to use PS_Unicodes in it, also include `ttpost.h' to use - tt_face_get_ps_name() in it. - -2017-09-11 Azzuro - - [build] Improve builds with different MS Visual Studio versions. - - * builds/windows/vc2010/freetype.vcxproj: Switch platform toolset - according to the Visual Studio version. - -2017-09-11 Werner Lemberg - - * src/sfnt/ttkern.c (tt_face_load_kern): Reject format 2 tables. - - Reported by Behdad. - -2017-09-09 Werner Lemberg - - [autofit] Improve communication with ftgrid. - - * src/autofit/afhints.c (af_glyph_hints_get_segment_offset): - Provide values in font units. - -2017-09-08 suzuki toshiya - - [base] Remove a check for resource ID in the resource fork driver. - - LastResort.dfont has a marginal resource ID 0xFFFF for sfnt - resource. Inside Macintosh: More Macintosh Toolbox, `Resource IDs' - (1-46), tells that some IDs are reserved and should not be used. - FreeType2 just uses resource ID to sort the fragmented resource. - To accept the marginal fonts, the checking is removed. - - * src/base/ftrfork.c (FT_Raccess_Get_DataOffsets): Remove res_id - validity check, fix a trace message format. - -2017-09-08 suzuki toshiya - - [sfnt, truetype] Register the tags for marginal fonts. - - The first 32bit of standard TrueType variants is 0x00010000, - `OTTO', `ttcf', `true' or `typ1'. 2 marginal dfonts on legacy Mac - OS X, Keyboard.dfont and LastResort.dfont, have the sfnt resources - starting 0xA5 followed by `kbd' or `lst'. Considering the following - data could be parsed as conventional TrueType fonts, the header - checking is updated to allow these tags. It seems that recent Mac - OS X has already switched to normal TTF for these fonts. - - See the discussion at - http://u88.n24.queensu.ca/exiftool/forum/index.php?topic=3931.0 - - * include/freetype/tttags.h (TTAG_0xA5kbd, TTAG_0xA5lst): New header - tags for Keyboard.dfont and LastResort.dfont. - * src/sfnt/sfobjs.c (sfnt_open_font): Accept the sfnt resource - starts with TTAG_0xA5kbd or TTAG_0xA5lst. - * src/truetype/ttobjs.c (tt_face_init): Accept the face with the - format tag is TTAG_0xA5kbd or TTAG_0xA5lst. - -2017-09-05 Werner Lemberg - - Fix multiple calls of `FT_Bitmap_Convert'. - - The documentation of `FT_Bitmap_Convert' says that multiple calls do - proper reallocation of the target FT_Bitmap object. However, this - failed for the sequence - - non-empty bitmap - empty bitmap - non-empty bitmap - - Reason was that `FT_Bitmap_Convert' only reallocated the bitmap - buffer if it became too small; it didn't make the buffer smaller. - For an empty bitmap following a non-empty one, only the buffer - dimension got set to zero, without deallocation. If the next call - was a non-empty buffer again, an assertion in `ft_mem_qrealloc' was - triggered. - - * src/base/ftbitmap.c (FT_Bitmap_Convert): Always reallocate target - buffer to the correct size. - - * docs/CHANGES: Document it. - -2017-09-05 Werner Lemberg - - [bdf] Fix size and resolution handling. - - * src/bdf/bdfdrivr.c (BDF_Face_Init): Use `SIZE' values if - `POINT_SIZE', `RESOLUTION_X', or `RESOLUTION_Y' properties are - missing. - - * docs/CHANGES: Document it. - -2017-08-25 Alexei Podtelezhnikov - - Swap `ALLOC_MULT' arguments (#51833). - - * src/base/ftbitmap.c (ft_bitmap_assure_buffer): Updated. - * src/winfonts/winfnt.c (FNT_Load_Glyph): Updated. - * src/raster/ftrend1.c (ft_raster1_render): Updated. - -2017-08-23 Werner Lemberg - - [sfnt] Fix clang compilation (#51788). - - * src/sfnt/pngshim.c (premultiply_data): Use vectors instead of - scalars. - (vector_shuffle): New macro to take care of a different built-in - function name on clang. - -2017-08-22 Werner Lemberg - - [base] Don't zero out allocated memory twice (#51816). - - Patch applied from bug report. - - * src/base/ftutil.c (ft_mem_qrealloc): Use low-level allocation to - avoid unnecessary overhead. - -2017-08-22 Werner Lemberg - - [truetype] Integer overflow. - - Changes triggered by - - https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=3107 - - * src/truetype/ttinterp.c (Ins_MDRP, Ins_MIRP, Ins_ALIGNPTS): Use - NEG_LONG. - -2017-08-17 Alexei Podtelezhnikov - - [sfnt] Avoid synthetic unicode for symbol fonts with PUA. - - Reported as - - https://bugs.chromium.org/p/chromium/issues/detail?id=754574 - - * src/sfnt/sfobjs.c (sfnt_load_face): Check for FT_ENCODING_MS_SYMBOL. - -2017-08-16 Werner Lemberg - - * src/sfnt/pngshim.c (premultiply_data): Fix compiler warnings. - -2017-08-15 Behdad Esfahbod - - [sfnt] Speed up PNG image loading. - - This reduces the overhead of `premultiply_data' by 60%. - - * src/sfnt/pngshim.c (premultiply_data): Provide code which uses - gcc's (and clang's) `vector_byte' attribute to process 4 pixels at a - time. - -2017-08-11 Werner Lemberg - - [sfnt, truetype] Improve handling of missing sbits. - - Requested by Behdad. - - Modern bitmap-only SFNTs like `NotoColorEmoji.ttf' don't contain - entries in the bitmap strike(s) for empty glyphs. Instead, they - rely that a space glyph gets created from the font's metrics data. - This commit makes FreeType behave accordingly. - - * include/freetype/fterrdef.h (FT_Err_Missing_Bitmap): New error - code. - - * src/sfnt/ttsbit.c (tt_sbit_decoder_load_image): Change error codes - to make a distinction between a missing bitmap in a composite and a - simple missing bitmap. - - * src/truetype/ttgload.c (TT_Load_Glyph): For a missing bitmap (in a - bitmap-only font), synthesize an empty bitmap glyph if metrics are - available. - -2017-08-10 Werner Lemberg - - [base] Minor API improvement for default variation axis setting. - - * src/base/ftmm.c (FT_Set_MM_Design_Coordinates, - FT_Set_Var_Design_Coordinates, FT_Set_MM_Blend_Coordinates, - FT_Set_Var_Blend_Coordinates): Allow coords==NULL if num_coords==0. - - * docs/CHANGES: Updated. - -2017-08-08 Werner Lemberg - - [psnames] Really fix issue #49949. - - We now use a separate preprocessor macro to handle both definition - and declaration of the glyph name arrays. - - * src/psnames/psmodule.c (DEFINE_PS_TABLE_DATA): New macro. - - * src/tools/glnames.py (StringTable::dump, - StringTable::dump_sublist): Use `DEFINE_PS_TABLE_DATA'. - (dump_encoding): Ditto. - (main): Use `wb' mode for writing the output file, which works on - Windows also. - - * src/psnames/pstables.h: Regenerated. - -2017-08-08 Alexei Podtelezhnikov - - [smooth] Harmony LCD rendering. - - This is a new technology for LCD-optimized rendering. It capitalizes - on the fact that each color channel grid is shifted by a third of a - pixel. Therefore it is logical to render 3 separate monochrome - bitmaps shifting the outline by 1/3 pixel, and then combine them. - Importantly, the resulting output does not require additional LCD - filtering. - - * src/smooth/ftsmooth.c (ft_smooth_render_generic) - [!FT_CONFIG_OPTION_SUBPIXEL_RENDERING]: Implement new LCD-optimized - rendering. - - * include/freetype/ftlcdfil.h, include/freetype/freetype.h, - include/freetype/config/ftoption.h, devel/ftoption.h: Updated - documentation. - -2017-08-08 Alexei Podtelezhnikov - - * src/smooth/ftsmooth.c (ft_smooth_render_generic): Clean up. - -2017-08-08 Alexei Podtelezhnikov - - * src/sfnt/ttpost.c (format): Use otspec-compliant versions. - -2017-08-05 Werner Lemberg - - [truetype] Integer overflow. - - Reported as - - https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2868 - - * src/truetype/ttinterp.c (Ins_ALIGNRP): Use NEG_LONG. - -2017-08-05 Werner Lemberg - - [base, truetype] New function `FT_Get_Var_Axis_Flags'. - - The reserved `flags' field got a value in OpenType version 1.8.2; - unfortunately, the public `FT_Var_Axis' structure misses the - corresponding element. Since we can't add a new field, we add an - access function. - - * src/base/ftmm.c (FT_Get_Var_Axis_Flags): New function. - - * include/freetype/ftmm.h (FT_VAR_AXIS_FLAG_HIDDEN): New macro. - Updated. - - * src/truetype/ttgxvar.c (TT_Get_MM_Var): Increase allocated memory - of `mmvar' to hold axis flags. - Fill the axis flags array. - - * docs/CHANGES: Updated. - -2017-08-03 Nikolaus Waxweiler - - [truetype] Fix metrics of B/W hinting in v40 mode. - - Phantom points are now saved outside v40 backwards compatibility - mode. This fixes the jumping glyphs when switching between v35 and - v40 monochrome mode. - - * src/truetype/ttgload.c (TT_Hint_Glyph): Fix inversed bool logic. - -2017-08-03 Nikolaus Waxweiler - - [truetype] Do not set any ClearType flags in v40 monochrome mode. - - This fixes weird behavior of instructions that resulted in rendering - differences between v35 and v40 in monochrome mode, e.g., in - `timesbi.ttf'. - - * src/truetype/ttinterp.c (Ins_GETINFO) - [TT_SUPPORT_SUBPIXEL_HINTING_MINIMAL]: Check - `subpixel_hinting_lean'. - -2017-08-01 Werner Lemberg - - * src/truetype/ttgxvar.c (TT_Get_MM_Var): Fix thinko. - -2017-08-01 Behdad Esfahbod - - [truetype] Fix loading of named instances. - - * src/truetype/ttgxvar.c (TT_Get_MM_Var): Preserve file position - while loading the `avar' table. - -2017-08-01 Werner Lemberg - - [sfnt, truetype] Minor adjustments for OpenType 1.8.2. - - * src/sfnt/sfobjs.c (sfnt_load_face): The units per EM value has now - (tighter) limits. - - * src/truetype/ttgload.c (load_truetype_glyph): The new OpenType - version explicitly allows all negative values for the number of - contours if we have a composite glyph (this is for better backwards - compatibility I guess), but it still recommends value -1. - -2017-07-26 Werner Lemberg - - [cff] Integer overflow. - - Reported as - - https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2738 - - * src/cff/cf2hints.c (cf2_glyphpath_computeOffset, - cf2_glyphpath_curveTo): Use ADD_INT32. - -2017-07-13 Werner Lemberg - - [base] Fix memory leak. - - Reported as - - https://bugs.chromium.org/p/chromium/issues/detail?id=738362 - - * src/base/ftglyph.c (FT_Get_Glyph): Do proper deallocation in case - of error. - -2017-07-12 Werner Lemberg - - [base] Integer overflow. - - Reported as - - https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2573 - - * src/base/ftobjs.c (ft_glyphslot_grid_fit_metrics): Use - FT_PIX_CEIL_LONG and FT_PIX_ROUND_LONG. - -2017-07-12 Werner Lemberg - - * src/truetype/ttpload.c (tt_face_get_location): Off-by-one typo. - - Also improve tracing message. - - Problem reported as - - https://bugs.chromium.org/p/chromium/issues/detail?id=738919 - -2017-07-07 Werner Lemberg - - [cff] Integer overflow. - - Reported as - - https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2517 - - * src/cff/cf2blues.c (cf2_blues_capture): Use SUB_INT32. - -2017-07-05 Werner Lemberg - - * src/sfnt/ttcmap.c (tt_cmap_unicode_class_rec): Fix warning. - -2017-07-05 Werner Lemberg - - * src/truetype/ttgxvar.c (FT_Stream_SeekSet): Fix warning (#51395). - -2017-07-04 Werner Lemberg - - [truetype] Prevent address overflow (#51365). - - * src/truetype/ttgxvar.c (FT_Stream_SeekSet): Add guard. - -2017-07-03 Alexei Podtelezhnikov - - * src/base/ftlcdfil.c (ft_lcd_filter_fir): Improve code. - -2017-07-03 Werner Lemberg - - [truetype] Integer overflow. - - Reported as - - https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2455 - - * src/truetype/ttinterp.c (Ins_SCFS): Use SUB_LONG. - -2017-07-01 Alexei Podtelezhnikov - - * src/sfnt/sfobjs.c (sfnt_load_face): Ignore No_Unicode_Glyph_Name. - -2017-06-28 Ben Wagner - - Avoid Microsoft compiler warnings (#51331). - - While clang's sanitizer recommends a cast to unsigned for safe - negation (to handle -INT_MIN), both MSVC and Visualc emit warning - C4146 if an unsigned value gets negated. - - * include/freetype/internal/ftcalc.h (NEG_LONG, NEG_INT32), - src/base/ftcalc.c (FT_MOVE_SIGN): Replace negation with a - subtraction. - -2017-06-27 Werner Lemberg - - * src/cff/cffparse.c (do_fixed): Fix typo. - - Spotted by chris . - -2017-06-27 Werner Lemberg - - [truetype] Integer overflows. - - Reported as - - https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2384 - https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2391 - - * src/base/ftcalc.c (FT_MulDiv, FT_MulDiv_No_Round, FT_DivFix): Use - NEG_LONG. - - * src/truetype/ttinterp.c (Ins_SxVTL): Use NEG_LONG. - -2017-06-24 Werner Lemberg - - [truetype] Integer overflows. - - Reported as - - https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2364 - - * src/truetype/ttinterp.c (Ins_ISECT): Use NEG_LONG. - -2017-06-22 Werner Lemberg - - [cff, truetype] Integer overflows. - - Reported as - - https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2323 - https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2328 - - * src/cff/cf2blues.c (cf2_blues_capture): Use ADD_INT32 and - SUB_INT32. - - * src/truetype/ttinterp.c (Ins_SDPVTL): Use SUB_LONG and NEG_LONG. - -2017-06-21 Alexei Podtelezhnikov - - [sfnt] Synthesize a Unicode charmap if one is missing. - - * src/sfnt/ttcmap.h (tt_cmap_unicode_class_rec): Declare it. - * src/sfnt/ttcmap.c (tt_get_glyph_name, tt_cmap_unicode_init, - tt_cmap_unicode_done, tt_cmap_unicode_char_index, - tt_cmap_unicode_char_next, tt_cmap_unicode_class_rec): Implement - synthetic Unicode charmap class. - (tt_get_cmap_info): Make sure the callback is available. - - * src/sfnt/sfobjs.c (sfnt_load_face) - [FT_CONFIG_OPTION_POSTSCRIPT_NAMES]: If Unicode charmap is missing, - synthesize one. - - * include/freetype/config/ftoption.h: Document it. - * devel/ftoption.h: Ditto. - -2017-06-20 Tony Theodore - - Fix pkg-config in freetype-config for cross-compiling (#51274). - - * builds/unix/unix-def.in (PKG_CONFIG): New variable. - (freetype-config): Use it in sed expression. - - * builds/unix/freetype-config.in: s/pkg-config/%PKG_CONFIG%/. - -2017-06-20 Werner Lemberg - - [cff, truetype] Integer overflows. - - Reported as - - https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2300 - https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2313 - - * src/cff/cf2hints.c (cf2_hintmap_adjustHints): Use ADD_INT32. - - * src/truetype/ttinterp.c (Ins_ABS): Avoid FT_ABS. - -2017-06-17 Alexei Podtelezhnikov - - [base, smooth] LCD filtering cleanups. - - * src/base/ftlcdfil.c (ft_lcd_filter_fir, _ft_lcd_filter_legacy): - Clean up, start filtering from the bottom-left origin. - - * src/smooth/ftsmooth.c (ft_smooth_render_generic): Updated. - -2017-06-16 Werner Lemberg - - [truetype] Integer overflows. - - Reported as - - https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2270 - https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2276 - - * src/truetype/ttinterp.c (Ins_MDRP, _iup_worker_interpolate): Use - ADD_LONG and SUB_LONG. - -2017-06-15 Werner Lemberg - - [bdf, cff] Integer overflows. - - Reported as - - https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2244 - https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2261 - - * src/bdf/bdfdrivr.c (BDF_Face_Init): Replace calls to FT_ABS with - direct code to avoid value negation. - - * src/cff/cf2blues.c (cf2_blues_capture): Use SUB_INT32 and - ADD_INT32. - -2017-06-13 Werner Lemberg - - * src/winfonts/winfnt.c (FNT_Face_Init): Don't set active encoding. - - FreeType only sets a default active encoding for Unicode. - -2017-06-13 Werner Lemberg - - [cff, truetype] Integer overflows. - - Reported as - - https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2216 - https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2218 - - * src/cff/cf2fixed.h (cf2_fixedAbs): Use NEG_INT32. - - * src/truetype/ttinterp.c (Ins_IP): Use SUB_LONG. - -2017-06-11 Werner Lemberg - - [cff] Integer overflows. - - Reported as - - https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2200 - https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2210 - - * src/cff/cf2hints.c (cf2_hintmap_insertHint): Use SUB_INT32 and - ADD_INT32. - - * src/cff/cf2intrp.c (cf2_interpT2CharString) : Use - ADD_INT32. - -2017-06-10 Werner Lemberg - - [truetype] Fix TT_Set_Var_Design. - - Reported by Nikolaus Waxweiler . - - * src/truetype/ttgxvar.c (TT_Set_Var_Design): Correctly handle the - case where we have less input coordinates than axes. - -2017-06-10 Werner Lemberg - - * src/base/ftcalc.c (FT_DivFix): Fix embarrassing typo. - - Bug introduced 2017-05-28. - -2017-06-09 Werner Lemberg - - [cff, truetype] Integer overflows. - - Reported as - - https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2144 - https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2151 - https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2153 - https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2173 - https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2186 - - * src/cff/cf2blues.c (cf2_blues_init): Use SUB_INT32. - - * src/truetype/ttinterp.c (Round_None, Round_To_Grid, - Round_To_Half_Grid, Round_Down_To_Grid, Round_Up_To_Grid, - Round_To_Double_Grid, Round_Super, Round_Super_45): Use ADD_LONG, - SUB_LONG, NEG_LONG, FT_PIX_ROUND_LONG, FT_PIX_CEIL_LONG, - FT_PAD_ROUND_LONG - (Ins_SxVTL, Ins_MIRP): Use SUB_LONG. - (_iup_worker_shift): Use SUB_LONG and ADD_LONG. - -2017-06-09 Werner Lemberg - - Provide more macros for flooring, ceiling, and rounding. - - These versions don't produce run-time errors due to integer - overflow. - - * include/freetype/internal/ftobjs.h: Include FT_INTERNAL_CALC_H. - (FT_PAD_ROUND_LONG, FT_PAD_CEIL_LONG, FT_PIX_ROUND_LONG, - FT_PIX_CEIL_LONG): New macros. - (FT_PAD_ROUND_INT32, FT_PAD_CEIL_INT32, FT_PIX_ROUND_INT32, - FT_PIX_CEIL_INT32): New macros. - -2017-06-09 Werner Lemberg - - Remove unused macros. - - * include/freetype/internal/ftcalc.h (ADD_INT, SUB_INT, MUL_INT, - NEG_INT): Deleted. - -2017-06-09 Werner Lemberg - - */*: Remove `OVERFLOW_' prefix. - - This increases readability. - -2017-06-07 Werner Lemberg - - [cff, truetype] Integer overflows. - - Reported as - - https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2133 - https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2137 - - * src/cff/cf2hints.c (cf2_hint_init): Use OVERFLOW_SUB_INT32. - - * src/truetype/ttinterp.c (PROJECT, DUALPROJ): Use - OVERFLOW_SUB_LONG. - -2017-06-06 Werner Lemberg - - [cff] Integer overflows. - - Reported as - - https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2109 - https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2110 - https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2122 - - * src/cff/cf2blues.c (cf2_blues_init): Use OVERFLOW_SUB_INT32. - - * src/cff/cf2hints.c (cf2_hintmap_map): Synchronize if-else - branches. - -2017-06-05 Werner Lemberg - - [cff] Integer overflow. - - Reported as - - https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2089 - - * src/cff/cffload.c (cff_blend_doBlend): User OVERFLOW_ADD_INT32. - -2017-06-04 Werner Lemberg - - [cff, truetype] Integer overflows. - - Reported as - - https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2075 - https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2088 - - * src/cff/cf2font.c (cf2_font_setup): Use OVERFLOW_MUL_INT32. - - * src/truetype/ttinterp.c (Ins_ISECT): Use OVERFLOW_MUL_LONG, - OVERFLOW_ADD_LONG, and OVERFLOW_SUB_LONG. - -2017-06-03 Werner Lemberg - - [base, cff, truetype] Integer overflows. - - Reported as - - https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2060 - https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2062 - https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2063 - https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2068 - - * src/base/ftobjs.c (ft_glyphslot_grid_fit_metrics): Use - OVERFLOW_ADD_LONG and OVERFLOW_SUB_LONG. - - * src/cff/cf2blues.c (cf2_blues_capture), src/cff/cf2hints.c - (cf2_hintmap_adjustHints): Use OVERFLOW_SUB_INT32. - - * src/truetype/ttgload.c (compute_glyph_metrics): User - OVERFLOW_SUB_LONG. - - * src/truetype/ttinterp.c (Direct_Move, Direct_Move_Orig, - Direct_Move_X, Direct_Move_Y, Direct_Move_Orig_X, - Direct_Move_Orig_Y, Move_Zp2_Point, Ins_MSIRP): Use - OVERFLOW_ADD_LONG and OVERFLOW_SUB_LONG. - -2017-06-03 Werner Lemberg - - * builds/unix/freetype-config.in: Fix pkg-config test (#51162). - - Patch directly taken from bug report. - -2017-06-03 Werner Lemberg - - [bdf] Synchronize sanity checks with pcf driver. - - Reported as - - https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2054 - https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2058 - - * src/bdf/bdfdrivr.c (BDF_Face_Init): Check font ascent and descent. - Check AVERAGE_WIDTH, POINT_SIZE, PIXEL_SIZE, RESOLUTION_X, and - RESOLUTION_Y properties. - -2017-06-03 Werner Lemberg - - [cff, truetype] Integer overflows. - - Reported as - - https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2047 - https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2057 - - * src/cff/cf2hints.c (cf2_hintmap_map): Use OVERFLOW_SUB_INT32. - - * src/truetype/ttinterp.c (Ins_ADD): Use OVERFLOW_ADD_LONG. - (Ins_SUB): Use OVERFLOW_SUB_LONG. - (Ins_NEG): Use NEG_LONG. - -2017-06-03 Werner Lemberg - - ftcalc.h: Avoid left-shift of negative numbers. - - Reported as - - https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2055 - - * include/freetype/internal/ftcalc.h (INT_TO_F26DOT6, - INT_TO_F2DOT14, INT_TO_FIXED, F2DOT14_TO_FIXED): Use multiplication. - -2017-06-02 Werner Lemberg - - [cff] Even more integer overflows. - - Reported as - - https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2046 - - * src/cff/cf2intrp.c (cf2_doStems, cf2_interpT2CharString): Use - OVERFLOW_ADD_INT32. - -2017-06-02 Werner Lemberg - - [cff] More integer overflows. - - Reported as - - https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2032 - - * src/cff/cf2blues.c (cf2_blues_init): Use OVERFLOW_SUB_INT32. - -2017-06-02 Werner Lemberg - - [bdf] Don't left-shift negative numbers. - - Reported as - - https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2031 - - * src/bdf/bdfdrivr.c (BDF_Face_Init): Use multiplication. - -2017-06-02 Werner Lemberg - - [bdf] Fix integer scanning routines. - - Reported as - - https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2029 - - * src/bdf/bdflib.c (_bdf_atoul, _bdf_atol, _bdf_atous, _bdf_atos): - Stop scanning if result would overflow. - -2017-06-02 Werner Lemberg - - [cff] Fix integer overflows. - - Reported as - - https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2027 - https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2028 - - * src/cff/cf2hints.c (cf2_hintmap_insertHint), src/cff/cf2intrp.c - (cf2_doFlex): Use OVERFLOW_ADD_INT32 and OVERFLOW_SUB_INT32. - -2017-06-01 Werner Lemberg - - [smooth] Some 32bit integer overflow run-time errors. - - * src/smooth/ftgrays.c [STANDALONE] (OVERFLOW_ADD_LONG, - OVERFLOW_SUB_LONG, OVERFLOW_MUL_LONG, NEG_LONG): New macros. - [!STANDALONE]: Include FT_INTERNAL_CALC_H. - (gray_render_cubic): Use those macros where appropriate. - -2017-06-01 Werner Lemberg - - * src/base/ftglyph.c (FT_Get_Glyph): Check `slot->advance'. - -2017-06-01 Werner Lemberg - - [psaux] 32bit integer overflow tun-time errors (#46149). - - * src/psaux/t1decode.c (t1_decoder_parse_charstrings): Use - OVERFLOW_ADD_LONG and OVERFLOW_SUB_LONG where appropriate. - -2017-06-01 Werner Lemberg - - * src/truetype/ttinterp.c (TT_RunIns): Adjust loop counter again. - - Problem reported by Marek Kašík . - - The problematic font that exceeds the old limit is Padauk-Bold, - version 3.002, containing bytecode generated by a buggy version of - ttfautohint. - -2017-05-31 Werner Lemberg - - [cff] 32bit integer overflow run-time errors 2/2 (#46149). - - This commit handles the new engine. - - * include/freetype/internal/ftcalc.h (OVERFLOW_ADD_INT32, - OVERFLOW_SUB_INT32, OVERFLOW_MUL_INT32, NEG_INT, NEG_LONG, - NEG_INT32): New macros. - - * src/cff/cf2ft.c (cf2_getScaleAndHintFlag): Use OVERFLOW_ADD_INT32. - - * src/cff/cf2hints.c (cf2_getWindingMomentum, cf2_hint_init, - cf2_hintmap_map, cf2_glyphpath_hintPoint, - cf2_glyphpath_computeIntersection, cf2_glyphpath_computeOffset, - cf2_glyphpath_lineTo, cf2_glyphpath_curveTo): Use - OVERFLOW_ADD_INT32, OVERFLOW_SUB_INT32, OVERFLOW_MUL_INT32, and - NEG_INT32 where appropriate. - - * src/cff/cf2intrp.c (cf2_doFlex, cf2_doBlend, - cf2_interpT2CharString): Ditto. - Also add some other code where needed to avoid overflow. - -2017-05-30 Werner Lemberg - - [cff] 32bit integer overflow run-time errors 1/2 (#46149). - - This commit handles the old engine. - - * src/cff/cffgload.c: Include FT_INTERNAL_CALC_H. - (cff_decoder_parse_charstrings): Use OVERFLOW_ADD_LONG and - OVERFLOW_SUB_LONG where needed. - - * src/cff/cffparse.c: Include FT_INTERNAL_CALC_H. - (power_ten_limits): New static array. - (do_fixed): Use it to prevent multiplication overflow. - (cff_parser_run): Use OVERFLOW_ADD_LONG. - -2017-05-30 Werner Lemberg - - [psaux] Correctly handle sequences of multiple number signs. - - * src/psaux/psconv.c (PS_Conv_Strtol, PS_Conv_ToFixed): Return zero - if we encounter more than a single sign. - -2017-05-29 Werner Lemberg - - [pcf] 32bit integer overflow run-time errors (#46149). - - * src/pcf/pcfread.c (pcf_get_accel): Add sanity checks for - `fontAscent' and `fontDescent'. - (pcf_load_font): Add sanity checks for global height. - Add sanity checks for AVERAGE_WIDTH, POINT_SIZE, PIXEL_SIZE, - RESOLUTION_X, and RESOLUTION_Y properties. - -2017-05-29 Werner Lemberg - - Handle some integer overflow run-time errors (#46149, #48979). - - This commit (mainly for 32bit CPUs) is the first of a series of - similar commits to handle known integer overflows. Basically, all - of them are harmless, since they affect rendering of glyphs only, - not posing security threats. It is expected that fuzzying will show - up more overflows, to be fixed in due course. - - The idea is to mark places where overflows can occur, using macros - that simply cast to unsigned integers, because overflow arithmetic - is well defined in this case. Doing so suppresses run-time errors - of sanitizers without adding computational overhead. - - * include/freetype/internal/ftcalc.h (OVERFLOW_ADD_INT, - OVERFLOW_SUB_INT, OVERFLOW_MUL_INT, OVERFLOW_ADD_LONG, - OVERFLOW_SUB_LONG, OVERFLOW_MUL_LONG): New macros. - - * src/base/ftcalc.c (FT_RoundFix, FT_CeilFix, FT_Matrix_Multiply, - FT_Matrix_Multiply_Scaled, FT_Vector_Transform_Scaled, - ft_corner_orientation): Use new macros. - - * src/base/ftoutln.c (FT_Outline_Get_Orientation): Use new macros. - -2017-05-28 Werner Lemberg - - * include/freetype/internal/ftcalc.h (FLOAT_TO_FIXED): Remove. - - This macro is not used. - -2017-05-28 Werner Lemberg - - [cff] s/cf2_floatToFixed/cf2_doubleToFixed/. - - The new name better describes what the macro actually does; - additionally, we don't need a trailing `f' for literals (there was - only a single such instance in the code, but this caused a clang - warning because the macro itself uses `double' literals). - - * src/cff/cf2blues.c, src/cff/cf2blues.h, src/cff/cf2fixed.h, - src/cff/cf2font.c, src/cff/cf2hints.c: Updated. - -2017-05-28 Werner Lemberg - - Fix negation of INT_MIN and LONG_MIN (#46149). - - * src/base/ftcalc.c (FT_MOVE_SIGN): Add argument to pass unsigned - value, to be used as the result. - (FT_MulDiv, FT_MulDiv_No_Round, FT_DivFix, FT_MulFix, - FT_Vector_NormLen): Updated. - -2017-05-27 Werner Lemberg - - [truetype] Fix handling of design coordinates (#51127). - - * src/truetype/ttgxvar.c (tt_set_mm_blend): Compute all design - coordinates if we have to create the `blends->coord' array. - (TT_Get_MM_Blend, TT_Get_Var_Design): Select default instance - coordinates if no instance is selected yet. - -2017-05-24 Werner Lemberg - - [bdf, pcf] Support ISO646.1991-IRV character encoding (aka ASCII). - - Problem reported by Marek Kašík , cf. - - https://bugzilla.redhat.com/show_bug.cgi?id=1451795 - - * src/bdf/bdfdrivr.c (BDF_Face_Init), src/pcf/pcfdrivr.c - (PCF_Face_Init): Implement it. - -2017-05-20 Nikolaus Waxweiler - - [truetype] Always use interpreter v35 for B/W rendering (#51051). - - * src/truetype/ttgload.c (tt_loader_init) - [TT_SUPPORT_SUBPIXEL_HINTING_MINIMAL]: Adjust - `subpixel_hinting_lean', `grayscale_cleartype', and - `vertical_lcd_lean' accordingly. - - * src/truetype/ttinterp.c (Ins_GETINFO): Updated. - (TT_RunIns): Update `backward_compatibility' flag. - -2017-05-20 Alexei Podtelezhnikov - - [smooth] Implement minimal dynamic padding for LCD filtering. - - Extra bitmap padding for LCD filtering depends on the filter. The - default 5-tap filter needs 2 extra subpixels. The light 3-tap filter - needs only 1 extra subpixel. This space could be already available - due to rounding. In order to optimize the padding, we now expand - CBox for the given filter weights before rounding. - - This change breaks current Skia (and Firefox). - - * include/freetype/internal/ftobjs.h (FT_LibraryRec) - [FT_CONFIG_OPTION_SUBPIXEL_RENDERING]: Remove `lcd_extra' field. - - * src/base/ftlcdfil.c (FT_Library_SetLcdFilterWeights, - FT_Library_SetLcdFilter): Remove `lcd_extra' initializations. - - * src/smooth/ftsmooth.c (ft_smooth_render_generic): Implement dymanic - LCD padding. - -2017-05-15 Werner Lemberg - - [sfnt] Return proper scaling values for SBIX bitmaps. - - Problem reported by Hin-Tak Leung . - - * src/sfnt/ttsbit.c (tt_face_load_strike_metrics): Implement it. - -2017-05-15 Werner Lemberg - - [truetype] Fix error handling for embedded bitmaps. - - Problem reported by Hin-Tak Leung . - - * src/truetype/ttgload.c (TT_Load_Glyph) - [TT_CONFIG_OPTION_EMBEDDED_BITMAPS]: Handle error if font is not - scalable. - -2017-05-15 Alexei Podtelezhnikov - - [autofit] Make autohint warping NORMAL option. - - This moves warping option from LIGHT to NORMAL mode. This makes LIGHT - truly void of hinting in x-direction, with left side bearing never - changed and right side bearing only altered by advance rounding. - Therefore, LIGHT is now ready to return fractional advance. As a - NORMAL option, warping substitutes normal hinting. - - * src/autofit/afcjk.c (af_cjk_hints_apply): Updated. - * src/autofit/aflatin.c (af_latin_hints_apply): Updated. - * src/autofit/aflatin2.c (af_latin2_hints_apply): Updated. - - * src/autofit/afloader.c (af_loader_load_glyph): Handle warping - phantom points as normal. - -2017-05-14 Werner Lemberg - - Remove remnants of raster pool. - - * include/freetype/internal/ftobjs.h (FT_LibraryRec): Remove - `raster_pool' and `raster_pool_size' fields. - - * src/base/ftobjs.c (FT_New_Library), src/raster/ftrend1.c - (ft_raster1_init), src/smooth/ftsmooth.c (ft_smooth_init): Updated. - -2017-05-13 Werner Lemberg - - * Version 2.8 released. - ======================= - - - Tag sources with `VER-2-8'. - - * docs/VERSION.TXT: Add entry for version 2.8. - * docs/CHANGES: Updated. - - * README, Jamfile (RefDoc), builds/windows/vc2005/freetype.vcproj, - builds/windows/vc2005/index.html, - builds/windows/vc2008/freetype.vcproj, - builds/windows/vc2008/index.html, - builds/windows/vc2010/freetype.vcxproj, - builds/windows/vc2010/index.html, - builds/windows/visualc/freetype.dsp, - builds/windows/visualc/freetype.vcproj, - builds/windows/visualc/index.html, - builds/windows/visualce/freetype.dsp, - builds/windows/visualce/freetype.vcproj, - builds/windows/visualce/index.html, - builds/wince/vc2005-ce/freetype.vcproj, - builds/wince/vc2005-ce/index.html, - builds/wince/vc2008-ce/freetype.vcproj, - builds/wince/vc2008-ce/index.html: s/2.7.1/2.8/, s/271/28/. - - * include/freetype/freetype.h (FREETYPE_MINOR): Set to 8. - (FREETYPE_PATCH): Set to 0. - - * builds/unix/configure.raw (version_info): Set to 20:0:14. - * CMakeLists.txt (VERSION_MINOR): Set to 8. - (VERSION_PATCH): Set to 0. - -2017-05-12 Hin-Tak Leung - - Fix `FT_UINT_TO_POINTER' macro for Windows. - - * builds/unix/ftconfig.in, builds/vms/ftconfig.h, - include/freetype/config/ftconfig.h (FT_UINT_TO_POINTER) [_WIN64]: - Fix definition. - -2017-05-11 Sascha Brawer - Werner Lemberg - Werner Lemberg - Werner Lemberg - Werner Lemberg - Werner Lemberg - Werner Lemberg - Werner Lemberg - Werner Lemberg - Werner Lemberg - Werner Lemberg - - [truetype] Add tricky font `DFGirl-W6-WIN-BF' (from Dynalab). - - Reported by Roy Tam . - - * src/truetype/ttobjs.c (tt_check_trickyness_family): Implement it. - -2017-05-07 Roy Tam - Werner Lemberg - - [truetype] More tricky fonts (mainly from Dynalab). - - * src/truetype/ttobjs.c (tt_check_trickyness_family, - tt_check_trickyness_sfnt_ids): Add them. - -2017-05-07 Werner Lemberg - - [truetype] Add tricky font `DLCHayMedium' (from Dynalab). - - Reported by Roy Tam . - - * src/truetype/ttobjs.c (tt_check_trickyness_family): Implement it. - -2017-05-03 Werner Lemberg - - */*: s/backwards compatibility/backward compatibility/. - -2017-05-03 Sascha Brawer - Werner Lemberg - Werner Lemberg - - [autofit] Add blue-zone support for Sundanese script. - - This essentially moves the Sundanese script from the `Indic' hinter - to the `Latin' hinter. - - * src/autofit/afblue.dat: Add blue zone data for Sundanese. - - * src/autofit/afblue.c, src/autofit/afblue.h: Regenerated. - - * src/autofit/afscript.h: Add Sundanese standard character and move - data out of AF_CONFIG_OPTION_INDIC block. - - * src/autofit/afranges.c: Move Sundanese data out of - AF_CONFIG_OPTION_INDIC block. - - * src/autofit/afstyles.h: Update Sundanese data; in particular, use - AF_WRITING_SYSTEM_LATIN. - -2017-05-03 Sascha Brawer - Werner Lemberg - - [truetype] Make `IUP' gvar deltas do the same as Apple (#50832). - - When points are not touched by gvar interpolation deltas, FreeType - gave a slightly different result than Apple's CoreText. - - The OpenType working group will update the specification to document - the following behaviour: If the two points with deltas to the `left' - and `right' of the untouched point have the same coordinate, then - the inferred delta for the untouched point should be zero. - - * src/truetype/ttgxvar.c (tt_delta_interpolate): Implement new - behaviour. - -2017-05-02 Werner Lemberg - - [autofit] Remove `slight' auto-hint mode again. - - A poll on freetype-devel favoured changes directly applied to - `light'. - - * include/freetype/freetype.h (FT_LOAD_TARGET_SLIGHT, - FT_RENDER_MODE_SLIGHT): Removed. - - * src/autofit/afcjk.c (af_cjk_hints_init), src/autofit/aflatin.c - (af_latin_hints_init), src/autofit/aflatin2.c - (af_latin2_hints_init): Revert change from 2017-04-22. - - * src/autofit/afloader.c (af_loader_load_glyph) Remove references to - FT_RENDER_MODE_SLIGHT. - [AF_CONFIG_OPTION_TT_SIZE_METRICS]: Enable TrueType-like metrics - unconditionally. - - * src/base/ftadvanc.c (LOAD_ADVANCE_FAST_CHECK): Revert change from - 2017-04-22. - - * src/base/ftobjs.c (FT_Load_Glyph): Revert change from 2017-04-22. - - * src/pshinter/pshalgo.c (ps_hints_apply): Revert change from - 2017-04-22. - - * src/smooth/ftsmooth.c (ft_smooth_render): Revert change from - 2017-04-22. - - * docs/CHANGES: Updated. - -2017-04-30 Werner Lemberg - - [autofit] Fix metrics computation. - - Problem reported by Markus Trippelsdorf and - Nikolaus Waxweiler . - - * src/base/ftobjs.c (FT_Request_Size): Trigger recomputation of - auto-hinter metrics. Without this change, multiple size changing - calls for a single face fail. - -2017-04-29 Werner Lemberg - - * src/truetype/ttdriver.c (tt_size_request): Properly check `error'. - - Reported by Earnestly in - - https://lists.nongnu.org/archive/html/freetype/2017-04/msg00031.html - -2017-04-27 Werner Lemberg - - Introduce AF_CONFIG_OPTION_TT_SIZE_METRICS configuration option. - - * include/freetype/config/ftoption.h - (AF_CONFIG_OPTION_TT_SIZE_METRICS): New option, commented out by - default. - - * src/autofit/afloader.c (af_loader_load_glyph): Use - AF_CONFIG_OPTION_TT_SIZE_METRICS to guard the corresponding code. - -2017-04-26 Werner Lemberg - - * include/freetype/freetype.h (FT_Render_Mode): Fix order. - - This retains backward compatibility. - - Noted by Alexei. - -2017-04-22 Werner Lemberg - - [truetype] Do linear scaling for FT_LOAD_NO_HINTING (#50470). - - * src/truetype/ttobjs.h (TT_SizeRec): Add field `hinted_metrics' to - hold hinted metrics. - Make `metrics' a pointer so that `tt_glyph_load' can easily switch - between metrics. - - * src/truetype/ttdriver.c (tt_size_request): Updated. - (tt_glyph_load): Use top-level metrics if FT_LOAD_NO_HINTING is - used. - - * src/truetype/ttgload.c (TT_Hint_Glyph, TT_Process_Simple_Glyph, - TT_Process_Composite_Component, load_truetype_glyph, - compute_glyph_metrics, TT_Load_Glyph): Updated. - - * src/truetype/ttinterp.c (TT_Load_Context): Updated. - - * src/truetype/ttobjs.c (tt_size_reset): Updated. - - * src/truetype/ttsubpix.c (sph_set_tweaks): Updated. - -2017-04-22 Werner Lemberg - - Add new `slight' auto-hinting mode. - - This mode uses fractional advance widths and doesn't scale glyphs - horizontally, only applying vertical scaling and hinting. - - At the same time, the behaviour of the `light' auto-hinter gets - restored for backward compatibility: Both vertical and horizontal - scaling is again based on rounded metrics values (this was changed - in a commit from 2017-03-30 as a side effect). To be more precise, - the behaviour is restored for TrueType fonts only; for other font - formats like Type 1, this is a new feature of the `light' hinting - mode. - - * include/freetype/freetype.h (FT_LOAD_TARGET_SLIGHT): New macro. - (FT_RENDER_MODE_SLIGHT): New render mode. - - * include/freetype/internal/ftobjs.h (FT_Size_InternalRec): Add - `autohint_mode' and `autohint_metrics' fields. - - * src/autofit/afcjk.c (af_cjk_hints_init), src/autofit/aflatin.c - (af_latin_hints_init), src/autofit/aflatin2 (af_latin2_hints_init): - Updated. - - * src/autofit/afloader.c (af_loader_embolden_glyph_in_slot): Use - `autohint_metrics'. - (af_loader_load_glyph): s/internal/slot_internal/. - Initialize `autohint_metrics' and `autohint_mode' depending on - current auto-hint mode. - Use `autohint_metrics'. - Updated. - - * src/base/ftadvanc.c (LOAD_ADVANCE_FAST_CHECK): Updated. - - * src/base/ftobjs.c (FT_Load_Glyph): Updated. - (FT_New_Size): Allocate `internal' object. - - * src/pshinter/pshalgo.c (ps_hints_apply): Updated. - - * src/smooth/ftsmooth.c (ft_smooth_render): Updated. - -2017-04-22 Werner Lemberg - - Introduce `FT_Size_InternalRec' structure. - - We are going to extend this later on. - - * include/freetype/internal/ftobjs.h (FT_Size_InternalRec): New - structure with a single field `module_data'. - - * src/base/ftobjs.c (FT_New_Size): Allocate `internal' field of - `FT_Size' structure. - - * src/cff/cffgload.c (cff_builder_init, cff_decoder_prepare): Use - `size->internal->module_data' instead of `size->internal'. - - * src/cff/cffobjs.c (cff_size_done): Deallocate `module_data'. - (cff_size_init, cff_size_select, cff_size_request): Use - `size->internal->module_data' instead of `size->internal'. - - * src/cif/cidobjs.c (cid_size_done, cid_size_init, - cid_size_request): Use `size->internal->module_data' instead of - `size->internal'. - - * src/psaux/psobjs.c (t1_builder_ini): Use - `size->internal->module_data' instead of `size->internal'. - - * src/type1/t1objs.c (T1_Size_Done, T1_Size_Init, T1_Size_Request): - Use `size->internal->module_data' instead of `size->internal'. - -2017-04-21 Alexei Podtelezhnikov - - * src/smooth/ftsmooth.h: Remove unused guards and declaration. - -2017-04-16 Hin-Tak Leung - - Fix tracing messages. - - * src/base/ftobjs.c (FT_Face_GetCharVariantIndex, - FT_Face_GetCharVariantIsDefault, FT_Face_GetVariantsOfChar): Print - correct function name. - -2017-04-08 Sascha Brawer - Werner Lemberg - Werner Lemberg - Werner Lemberg - Werner Lemberg - - [autofit] Fix invalid character range description (#50745). - - Also reported as - - https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=1034 - - * src/autofit/afranges.c (af_glag_nonbase_uniranges): Fix typo in - recent commit. - -2017-04-07 Werner Lemberg - - [ftfuzzer] Fix clang warnings. - - * src/tools/ftfuzzer/ftfuzzer.cc (LLVMFuzzerTestOneInput): Add - casts. - -2017-04-06 Sascha Brawer - Werner Lemberg - Werner Lemberg - Werner Lemberg - Werner Lemberg - Werner Lemberg - Werner Lemberg - - [autofit] Add support for Adlam script. - - * src/autofit/afblue.dat: Add blue zone data for Adlam. - * src/autofit/afblue.c, src/autofit/afblue.h: Regenerated. - - * src/autofit/afscript.h: Add Adlam standard characters. - - * src/autofit/afranges.c, src/autofit/afstyles.h: Add Adlam data. - -2017-04-06 Sascha Brawer - - [autofit] Add support for Ol Chiki script. - - * src/autofit/afblue.dat: Add blue zone data for Ol Chiki. - * src/autofit/afblue.c, src/autofit/afblue.h: Regenerated. - - * src/autofit/afscript.h: Add Ol Chiki standard character. - - * src/autofit/afranges.c, src/autofit/afstyles.h: Add Ol Chiki data. - -2017-04-03 Werner Lemberg - - [truetype] Avoid reexecution of `fpgm' and `prep' in case of error. - - Reported as - - https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=981 - - * include/freetype/fterrdef.h (FT_Err_DEF_In_Glyf_Bytecode): New - error code. - - * src/truetype/ttinterp.c (Ins_FDEF, Ins_IDEF): Prohibit execution - of these two opcodes in `glyf' bytecode. - (TT_RunIns): Don't enforce reexecution of `fpgm' and `prep' bytecode - in case of error since function tables can no longer be modified - (due to the changes in `Ins_FDEF' and `Ins_IDEF'). This change can - enormously speed up handling of broken fonts. - -2017-04-02 Alexei Podtelezhnikov - - [autofit] Disable metrics adjustment for `FT_LOAD_TARGET_LCD'. - - * src/autofit/aflatin.c (af_latin_hints_init): Updated. - * src/autofit/aflatin2.c (af_latin2_hints_init): Ditto. - -2017-04-01 Werner Lemberg - - * src/truetype/ttgload.c: Include FT_CONFIG_CONFIG_H. - - Otherwise FT_UINT_TO_POINTER might not be defined. - - Problem reported by Alexei. - -2017-03-31 Alexei Podtelezhnikov - - [autofit] Disable stem adjustment for `FT_LOAD_TARGET_LCD'. - - * include/freetype/freetype.h (FT_LOAD_TARGET_LCD): Document it. - * src/autofit/afcjk.c (af_cjk_hints_init): Updated. - * src/autofit/aflatin.c (af_latin_hints_init): Ditto. - * src/autofit/aflatin2.c (af_latin2_hints_init): Ditto. - -2017-03-31 Werner Lemberg - - * src/cff/cffload.c (cff_font_load): Improve fix from 2017-01-04. - - Allow CFFs containing a single font to have an empty font name. - - Problem reported by 張俊芝 <418092625@qq.com> in - - https://lists.nongnu.org/archive/html/freetype-devel/2017-03/msg00074.html - -2017-03-30 Werner Lemberg - - * src/cff/cffparse.h (CFF2_DEFAULT_STACK): Set to 513 also. - - Requested by Dave Arnold. - -2017-03-30 Werner Lemberg - - [truetype] Fix HVAR and VVAR handling (#50678). - - * src/truetype/ttgxvar.c (tt_hvadvance_adjust): Handle - glyph indices larger than `mapCount' as described in the - specification. - -2017-03-30 Werner Lemberg - - [truetype] Allow linear scaling for unhinted rendering (#50470). - - * src/truetype/ttdriver.c (tt_size_request): Revert change from - 2011-07-16; the intended metrics fix seems now to be implemented in - a different way, making the patch unnecessary. Note that this - change was usually patched out by all major GNU/Linux distributions - due to heavy side effects. - - * src/truetype/ttgload.c (compute_glyph_metrics, TT_Load_Glyph): - Refer to the metrics of the `TT_Size' object. - -2017-03-29 Werner Lemberg - - [truetype] Fix thinko related to PS name of default named instance. - - * src/truetype/ttgxvar.c (TT_Get_MM_Var): `strid' and `psid' are - name ID values, not indices into the array of name entries. - -2017-03-27 Werner Lemberg - - [cid, truetype] Don't use `index' as a variable name. - - At least on FreeBSD there is a global declaration of `index' in file - `/usr/include/strings.h'. - - * src/cff/cf2intrp.c, src/truetype/ttgload.c: s/index/idx/ where - appropriate. - -2017-03-27 Wojciech Mamrak - - [sfnt] Minor improvement for handling kern tables. - - * src/sfnt/ttkern.c (tt_face_load_kern): Don't check for - cross-stream kerning tables since we reject format 2 tables later - on anyways. - Modify code for limit test... - (tt_face_get_kerning): ... to avoid a limit test here. - -2017-03-27 Werner Lemberg - - [pcf] Fix compiler warnings. - - Reported by Alexander Hedges . - - * src/pcf/pcfdrivr.c (pcf_property_set, pcf_property_get): Tag - `property_name' with `FT_UNUSED' where necessary. - -2017-03-26 Werner Lemberg - - * src/psaux/psobjs.c (t1_builder_close_contour): Add safety guard. - - Reported as - - https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=941 - -2017-03-23 Werner Lemberg - - [psaux] Better protect `flex' handling. - - Reported as - - https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=935 - - * src/psaux/t1decode.c (t1_decoder_parse_charstrings) - : Since there is not a single flex operator but a - series of subroutine calls, malformed fonts can call arbitrary other - operators after the start of a flex, possibly adding points. For - this reason we have to check the available number of points before - inserting a point. - -2017-03-23 Werner Lemberg - - [sfnt] Fix check for default named instance. - - * src/sfnt/sfobjs.c (sfnt_init_face): A `fixed' number needs four - bytes, not two... - -2017-03-23 Werner Lemberg - - Make MM fonts work (again). - - * src/base/ftmm.c (FT_Set_Var_Design_Coordinates, - FT_Set_MM_Blend_Coordinates, FT_Set_Var_Blend_Coordinates): Ignore - return value of `ft_face_get_mvar_service'; instead, check whether a - service is actually returned. - -2017-03-20 Werner Lemberg - - [truetype] Some variable renamings. - - Too much local variables holding different structures were called - `metrics'. - - * src/truetype/ttdriver.c (tt_size_select): s/metrics/size_metrics/. - - * src/truetype/ttgload.c (tt_get_metrics_incr_overrides, - compute_glyph_metrics): s/metrics/incr_metrics/. - (load_sbit_image): s/metrics/sbit_metrics/. - - * src/truetype/ttobjs.c (tt_size_run_fpgm): s/metrics/size_metrics/. - (tt_size_init_bytecode): s/metrics/tt_metrics/. - (tt_size_reset): s/metrics/size_metrics/. - -2017-03-20 Werner Lemberg - - [sfnt] Don't add instances to non-variation fonts. - - * src/sfnt/sfobjs.c (sfnt_init_face): Fix it. - -2017-03-20 Werner Lemberg - - * src/cff/cffgload.c (cff_builder_init): Add safety guard (#50578). - -2017-03-18 Werner Lemberg - - Introduce FT_UINT_TO_POINTER macro (#50560). - - We have to make a separate case for Windows 64's LLP64 data model. - - * builds/unix/ftconfig.in, builds/vms/ftconfig.h, - include/freetype/config/ftconfig.h (FT_UINT_TO_POINTER): New macro. - - * src/truetype/ttgload.c (load_truetype_glyph): Use it. - -2017-03-18 Werner Lemberg - - * src/truetype/ttinterp.c (TT_RunIns): Adjust loop counter (#50573). - - The problematic font that exceeds the old limit is Lato-Regular, - version 2.007, containing bytecode generated by a buggy version of - ttfautohint. - -2017-03-18 Werner Lemberg - - [truetype] Another limitation for bytecode loop count maximum. - - Reported as - - https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=900 - - * src/truetype/ttinterp.c (TT_RunIns): Limit `loopcall_counter_max' - by number of glyphs also. - -2017-03-18 Werner Lemberg - - [ftfuzzer] Minor improvement. - - * src/tools/ftfuzzer/ftfuzzer.cc: Don't set intermediate axis if - bitmap strikes are active. - -2017-03-18 Werner Lemberg - - Improve `make multi'. - - * src/autofit/aflatin2.c: Guard file with FT_OPTION_AUTOFIT2. - - * src/base/ftmac.c: Guard more parts of the file with FT_MACINTOSH. - - * src/psaux/afmparse.c: Guard file with T1_CONFIG_OPTION_NO_AFM. - - * src/sfnt/pngshim.c: Guard file with - TT_CONFIG_OPTION_EMBEDDED_BITMAPS also. - - * src/sfnt/ttbdf.c: Avoid empty source file. - * src/sfnt/ttpost.c: Guard file with - TT_CONFIG_OPTION_POSTSCRIPT_NAMES. - * src/sfnt/ttsbit.c: Guard file with - TT_CONFIG_OPTION_EMBEDDED_BITMAPS. - - * src/truetype/ttgxvar.c, src/truetype/ttinterp.c: Avoid empty - source file. - - * src/truetype/ttsubpix.c: Guard file with - TT_USE_BYTECODE_INTERPRETER also. - - * src/type1/t1afm.c: Guard file with T1_CONFIG_OPTION_NO_AFM. - - * src/autofit/autofit.c, src/base/ftbase.c, src/cache/ftcache.c, - src/cff/cff.c, src/cid/type1cid.c, src/gxvalid/gxvalid.c, - src/pcf/pcf.c, src/pfr/pfr.c, src/psaux/psaux.c, - src/pshinter/pshinter.c, src/psnames/psnames.c, src/raster/raster.c, - src/sfnt/sfnt.c, src/smooth/smooth.c, src/truetype/truetype.c, - src/type1/type1.c, src/type42/type42.c: Remove conditionals; sort - entries. - -2017-03-17 Werner Lemberg - - Fixes for conditional compilation. - - * src/autofit/afcjk.c, src/autofit/afindic.c: Include `afcjk.h' - earlier. - - * src/sfnt/sfobjs.c (sfnt_init_face): Put `memory' variable into - TT_CONFIG_OPTION_GX_VAR_SUPPORT block. - (sfnt_done_face): Protect some code with - TT_CONFIG_OPTION_GX_VAR_SUPPORT. - - * src/sfnt/ttsbit.c (tt_face_load_sbix_image): Remove compiler - warning. - - * src/truetype/ttgload.c (TT_Load_Simple_Glyph): Put `tmp' variable - into TT_USE_BYTECODE_INTERPRETER block. - - (tt_loader_init): Put `error' variable into - TT_USE_BYTECODE_INTERPRETER block. - -2017-03-17 Werner Lemberg - - Fix preprocessor warning. - - * devel/ftoption.h, include/freetype/config/ftoption.h: Test whether - TT_CONFIG_OPTION_SUBPIXEL_HINTING is defined before checking its - value. - -2017-03-17 Werner Lemberg - - `make multi' fixes; compiler warnings. - - * src/base/ftsnames.c: Include FT_INTERNAL_DEBUG_H. - - * src/cff/cffobjs.c [TT_CONFIG_OPTION_GX_VAR_SUPPORT]: Include - FT_MULTIPLE_MASTERS_H and FT_SERVICE_MULTIPLE_MASTERS_H. - - * src/sfnt/sfdriver.c [TT_CONFIG_OPTION_GX_VAR_SUPPORT]: Include - FT_MULTIPLE_MASTERS_H and FT_SERVICE_MULTIPLE_MASTERS_H. - (get_win_string, get_apple_string): Initialize `result'. - -2017-03-17 Dave Arnold - - [cff] Fix potential bugs in default NDV for CFF2. - - * src/cff/cffload.c (cff_blend_build_vector): Explicitly build blend - vector when `lenNDV' is zero; don't rely on zero-init. - Save `lenNDV' as part of cache key even when `lenNDV' is zero. - -2017-03-17 Dave Arnold - - [cff] Fix CFF2 stack allocation. - - * src/cff/cffparse.c (cff_parser_init) add 1 for operator. - -2017-03-16 Werner Lemberg - - * src/truetype/ttgxvar.c (tt_done_blend): Free `vvar_table'. - - Reported as - - https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=883 - -2017-03-15 Werner Lemberg - - Remove clang compiler warnings (#50548). - - * include/freetype/internal/tttypes.h (TT_FaceRec): Make - `var_postscript_prefix_len' unsigned. - - * src/autofit/afwarp.c (af_warper_compute_line_best): Remove - redundant assignment. - - * src/cff/cffload.c (cff_subfont_load): Add casts. - - * src/cff/cffparse.c (cff_parse_blend): Remove redundant assignment. - - * src/sfnt/sfdriver.c (fmix32, murmur_hash_3_128): Add `static' - keyword. - Add casts. - (fixed2float): Add cast. - (sfnt_get_var_ps_name): Make `p' always initialized. - Add casts. - - * src/truetype/ttgxvar.c (TT_Get_MM_Var): Add casts. - -2017-03-15 Werner Lemberg - - [ftfuzzer] Limit number of tested faces and instances. - - This is inspired by the discussion in and analysis of - - https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=859 - - * src/tools/ftfuzzer/ftfuzzer.cc (LLVMFuzzerTestOneInput): Use only - up to 20 face indices. - Use only up to 20 instance indices. - -2017-03-15 Werner Lemberg - - * src/tools/ftfuzzer/ftfuzzer.cc: Improve readability; formatting. - -2017-03-14 Werner Lemberg - - [sfnt] Implement PS names for font instances [3/3]. - - Everything is guarded with TT_CONFIG_OPTION_GX_VAR_SUPPORT. - - * include/freetype/internal/tttypes.h (TT_FaceRec): New fields - `var_postscript_prefix' and `var_postscript_prefix_len'. - - * src/sfnt/sfdriver.c: Include FT_TRUETYPE_IDS_H. - (sfnt_is_alphanumeric): New wrapperfunction for `ft_isalnum'. - (get_win_string, get_apple_string): Remove `const' from return - value. - (MAX_VALUE_DESCRIPTOR_LEN, MAX_PS_NAME_LEN): New macros. - (hexdigits): New array. - (sfnt_get_var_ps_name): New function, implementing Adobe TechNote - 5902 to construct a PS name for a variation font instance. - (sfnt_get_ps_name): Call `sfnt_get_var_ps_name' for font instances. - - * src/sfnt/sfobjs.c (sfnt_done_face): Updated. - - * src/truetype/ttgxvar.c (tt_set_mm_blend): Reset - `face->postscript_name' to trigger recalculation for new instance - parameters. - -2017-03-14 Werner Lemberg - - [sfnt] Implement PS names for font instances [2/3]. - - * src/sfnt/sfdriver.c (fix2float) [TT_CONFIG_OPTION_GX_VAR_SUPPORT]: - New function to find the shortest representation of a 16.16 - fractional number. - -2017-03-14 Werner Lemberg - - [sfnt] Implement PS names for font instances [1/3]. - - Add 128bit MurmurHash 3 function. - - Everything is guarded with TT_CONFIG_OPTION_GX_VAR_SUPPORT. - - * src/sfnt/sfdriver.c (ROTL32): New macro. - (fmix32, murmur_hash_3_128): New functions. - -2017-03-13 Werner Lemberg - - [truetype] Ignore invalid MVAR tags. - - Reported as - - https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=838 - - * src/truetype/ttgxvar.c (ft_var_load_mvar): Ignore value and emit - warning for invalid tags. - (tt_apply_mvar): Ignore invalid tags. - -2017-03-12 Werner Lemberg - - [truetype] Store and use design coordinates also. - - * include/freetype/internal/services/svmm.h (FT_Get_Var_Blend_Func): - Add `normalizedcoords' argument. - - * src/truetype/ttgxvar.h (GX_BlendRec): Add `coords' field to store - the design coordinates of the current instance. - Updated. - - * src/truetype/ttgxvar.c (TT_Set_MM_Blend): Move functionality to... - (tt_set_mm_blend): ... New function. - Convert data in `normalizedcoords' array to `coords' array on - demand. - (TT_Set_Var_Design): Store argument data in `coords' array. - (TT_Get_Var_Design): Get data from `coords' array. - (tt_get_var_blend): Updated. - (tt_done_blend): Updated. - - * src/cff/cffload.c, src/cff/cffload.h (cff_get_var_blend): Updated. - - * src/cff/cf2ft.c (cf2_getNormalizedVector): Updated. - - * src/cff/cffobjs.c (cff_face_init): Updated. - -2017-03-12 Werner Lemberg - - src/truetype/ttgxvar.[ch]: s/avar_checked/avar_loaded/. - -2017-03-08 Werner Lemberg - - [sfnt] Another fix for buggy variation fonts. - - Reported as - - https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=759 - - * src/sfnt/sfobjs.c (sfnt_init_face): While setting number of - instances to zero for `CFF' fonts table, ensure that there is no - `CFF2' present also (which gets priority). - -2017-03-07 Werner Lemberg - - [sfnt] Improve handling for buggy variation fonts. - - Reported as - - https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=738 - - * src/sfnt/sfobjs.c (sfnt_init_face): While setting number of - instances to zero for `CFF' fonts table, ensure that there is no - `glyf' table present also (which gets priority). - -2017-03-06 Werner Lemberg - - [sfnt, truetype] Always provide default instance. - - As documented in the OpenType specification, an entry for the - default instance may be omitted in the named instance table. In - particular this means that even if there is no named instance table - in the font we actually do have a named instance, namely the default - instance. - - For consistency, we always want the default instance in our list of - named instances. If it is missing, we try to synthesize it. - - * src/sfnt/sfobjs.c (sfnt_init_face): Check whether the default - instance is in the table of named instances. Otherwise adjust - number of instances. - - * src/truetype/ttgxvar.c: Include FT_TRUETYPE_IDS_H. - (TT_Get_MM_Var): Use `face->root.style_flags' as the number of named - instances. - Sythesize a named instance entry if necessary. - (tt_done_blend): Free `normalized_stylecoords'. - -2017-03-05 Werner Lemberg - - [sfnt] Remove redundant code. - - * src/sfnt/sfobjs.c (sfnt_init_face): Remove second test for - `num_instances', which will always succeed. - -2017-03-04 Werner Lemberg - - [sfnt] Add `get_name_id' service. - - * include/freetype/internal/sfnt.h (TT_Get_Name_ID_Func): New - typedef. - (SFNT_Interface): Add `get_name_id' field. - (FT_DEFINE_SFNT_INTERFACE): Updated. - - * src/sfnt/sfdriver.c (search_name_id): Rename to... - (sfnt_get_name_id): ... this. - (sfnt_get_ps_name, sfnt_interface): Updated. - -2017-03-04 Werner Lemberg - - [truetype] Make `TT_Set_MM_Blend' set named instance index. - - * src/truetype/ttgxvar.h (GX_Blend): New array - `normalized_stylecoords'. - - * src/truetype/ttgxvar.c (TT_Get_MM_Var): Allocate and fill - `normalized_stylecoords'. - (TT_Set_MM_Blend): Check instance tuple and adjust `face_index' - accordingly. - -2017-03-02 Werner Lemberg - - [truetype] Split off designer/normalized conversion routines. - - * src/truetype/ttgxvar.c (TT_Set_Var_Design): Split off conversion - code designer->normalized coordinates to... - (ft_var_to_normalized): ... New function. - (TT_Get_Var_Design): Split off conversion code normalized->designer - coordinates to... - (ft_var_to_design): ... New function. - -2017-02-28 Werner Lemberg - - [sfnt] Further generalize `sfnt_get_ps_name'; report invalid data. - - * src/sfnt/sfdriver.c (sfnt_ps_map): New array. - (sfnt_is_postscript): New function. - (char_type_func): New typedef. - (get_win_string, get_apple_string): Add argument to specify - character checking function. - Add argument whether argument checking failures should be reported. - Update callers. - (search_name_id): Fix return value. - -2017-02-23 Werner Lemberg - - [sfnt] Split off another bit of `sfnt_get_ps_name'. - - * src/sfnt/sfdriver.c (sfnt_get_ps_name): Split off some - functionality into... - (search_name_id): ... New function. - -2017-02-23 Werner Lemberg - - [sfnt] Modularize `sfnt_get_ps_name'. - - * src/sfnt/sfdriver.c (sfnt_get_ps_name): Split off some - functionality into... - (IS_WIN, IS_APPLE): ... New macros. - (get_win_string, get_apple_string): ... New functions. - -2017-02-23 Werner Lemberg - - [truetype] Minor improvement. - - * src/truetype/ttgload.c (TT_Process_Simple_Glyph, - load_truetype_glyph): Remove unnecessary tests. - -2017-02-23 Werner Lemberg - - * include/freetype/internal/tttypes.h (TT_Face): s/isCFF2/is_cff2/. - - For orthogonality with other structure field names. - - Update all users. - -2017-02-22 Alexei Podtelezhnikov - - * src/smooth/ftgrays.c (gray_hline): Improve code. - -2017-02-20 Dominik Röttsches - - Fix some `ttnameid.h' entries (#50313). - - * include/freetype/ttnameid.h: - s/TT_MS_LANGID_SPANISH_INTERNATIONAL_SORT/TT_MS_LANGID_SPANISH_SPAIN_INTERNATIONAL_SORT/, - s/TT_MS_LANGID_MONGOLIAN_MONGOLIA_MONGOLIA/TT_MS_LANGID_MONGOLIAN_MONGOLIA_MONGOLIAN/. - -2017-02-20 Werner Lemberg - - [cff] Finish support for `random' operator. - - * src/cff/cfftypes.h (CFF_SubFontRec): Add `random' field. - - * src/cff/cffobjs.c: Updated. - (cff_driver_init): Initialize random seed value. - - * src/cff/cffload.c (cff_random): New function. - (cff_subfont_load): Add `face' argument. - Update all callers. - Initialize random number generator with a proper seed value. - (cff_font_load): Add `face' argument. - Update all callers. - - * src/cff/cffload.h: Updated. - - * src/cff/cf2intrp.c (CF2_FIXME): Removed. - (cf2_interpT2CharString) : Implement opcode. - - * src/cff/cffgload.c (cff_decoder_parse_charstrings): Don't - initialize random seed value. - : Use new random seed framework. - -2017-02-20 Werner Lemberg - - [cff] Sanitize `initialRandomSeed'. - - * src/cff/cffload.c (cff_load_private_dict): Make - `initial_random_seed' value always positive. - -2017-02-20 Werner Lemberg - - [cff] Introduce `random-seed' property (2/2). - - * src/base/ftobjs.c: Include `FT_CFF_DRIVER_H'. - (open_face): Initialize `face->internal->random_seed'. - (FT_Face_Properties): Handle `FT_PARAM_TAG_RANDOM_SEED'. - - * src/cff/cffdrivr.c (cff_property_set): Handle `random-seed' - property. - -2017-02-20 Werner Lemberg - - [cff] Introduce `random-seed' property (1/2). - - We need this for support of the `random' operator. - - * include/freetype/ftcffdrv.h (FT_PARAM_TAG_RANDOM_SEED): New macro. - - * include/freetype/internal/ftobjs.h (FT_Face_InternalRec): New - field `random_seed'. - - * src/cff/cffobjs.h (CFF_DriverRec): New field `random_seed'. - -2017-02-17 Werner Lemberg - - Remove clang warnings. - - * src/autofit/aflatin.c (af_latin_sort_blue): Add missing `static' - keyword. - - * src/base/ftmm.c (FT_Set_Var_Design_Coordinates, - FT_Set_MM_Blend_Coordinates, FT_Set_Var_Blend_Coordinates): - Initialize some variables. - -2017-02-16 Nikolaus Waxweiler - Werner Lemberg - - Add face property for stem darkening. - - * include/freetype/ftautoh.h (FT_PARAM_TAG_STEM_DARKENING): New - macro. - - * include/freetype/internal/ftobjs.h (FT_Face_InternalRec): Add - `no_stem_darkening' field. - - * src/autofit/afloader.c (af_loader_load_glyph), - src/autofit/afmodule.c (af_property_set): Updated. - - * src/base/ftobjs.c: Include FT_AUTOHINTER_H. - (ft_open_face_internal): Updated. - (FT_Face_Properties): Handle FT_PARAM_TAG_STEM_DARKENING. - - * src/cff/cf2ft.c (cf2_decoder_parse_charstrings): Updated. - - * src/cff/cffdrivr.c (cff_property_set): Updated. - -2017-02-16 Nikolaus Waxweiler - Werner Lemberg - - Add face property for LCD filter weights. - - * include/freetype/ftlcdfil.h (FT_PARAM_TAG_LCD_FILTER_WEIGHTS, - FT_LCD_FILTER_FIVE_TAPS): New macros. - (FT_LcdFiveTapFilter): New typedef. - - * include/freetype/ftobjs.h (FT_Face_InternalRec) - [FT_CONFIG_OPTION_SUBPIXEL_RENDERING]: Add `lcd_weights' field. - (FT_Bitmap_LcdFilterFunc): Change third argument to weights array. - (ft_lcd_filter_fir): New prototype. - (FT_LibraryRec): Updated. - - * src/base/ftlcdfil.c (_ft_lcd_filter_fir): Renamed to... - (ft_lcd_filter_fir): ... this base function. - Updated. - (_ft_lcd_filter_legacy): Updated. - (FT_Library_SetLcdFilterWeights, FT_Library_SetLcdFilter): Updated. - - * src/base/ftobjs.c (ft_open_face_internal): Updated. - (FT_Face_Properties): Handle FT_PARAM_TAG_LCD_FILTER_WEIGHTS. - - * src/smooth/ftsmooth.c (ft_smooth_render_generic) - [FT_CONFIG_OPTION_SUBPIXEL_RENDERING]: Handle LCD weights from - `FT_Face_Internal'. - -2017-02-14 Nikolaus Waxweiler - Werner Lemberg - - Add new function `FT_Face_Properties'. - - This commit provides the framework, to be filled with something - useful in the next commits. - - * include/freetype/freetype.h (FT_Face_Properties): Declare. - - * src/base/ftobjs.c (FT_Face_Properties): New function. - -2017-02-13 Werner Lemberg - - [autofit] Prevent overlapping blue zones. - - Problem reported as - - https://github.com/google/fonts/issues/632 - - The font in question (Nunito) has values 705 and 713 for the - reference and overshoot values, respectively, of the first blue - zone. Blue zone 2, however, has value 710 for both the reference - and overshoot. At 12ppem, reference and overshoot of blue zone 0 - becomes 8px, while blue zone 2 becomes 9px. - - A peculiarity of this font is that the tops of isolated vertical - stems like `N' have a slight overshoot also. The auto-hinter tries - to find the nearest blue zone using the *original* coordinates. For - vertical stems, this is value 713. For normal horizontal tops like - in character `E', this is value 710. Since value 713 is mapped to - 8px but value 710 to 9px, `N' and similar characters are one pixel - higher than `E', which looks very bad. - - This commit sanitizes blue zones to avoid such a behaviour. - - * src/autofit/aflatin.c (af_latin_sort_blue): New function. - (af_latin_metrics_init_blues): Sort blue values and remove overlaps. - -2017-02-12 Alexei Podtelezhnikov - - * src/smooth/ftgrays.c (gray_sweep): Improve code. - -2017-02-06 Werner Lemberg - - [truetype] Implement `VVAR' table support. - - * src/truetype/ttgxvar.h (GX_HVarTable): Renamed to... - (GX_HVVarTable): ...This. - (GX_Blend): Add fields for `VVAR' table handling. - Other minor updates. - - * src/truetype/ttgxvar.c (ft_var_load_hvar): Renamed to... - (ft_var_load_hvvar): ...This. - Handle VVAR loading also (controlled by an additional parameter). - (tt_hadvance_adjust): Renamed to... - (tt_hvadvance_adjust): ...This. - Handle application of advance height also (controlled by an - additional parameter). - (tt_hadvance_adjust, tt_vadvance_adjust): Wrappers for - `tt_hvadvance_adjust'. - - * src/truetype/ttdriver.c (tt_service_metrics_variations): Updated. - -2017-02-05 Werner Lemberg - - [autofit] Use better blue zone characters for lowercase latin. - - The number of lowercase characters for computing the top flat blue - zone value was too small (in most cases only `x' and `z'). If one - of the two characters has a large serif, say, it can happen that - FreeType must select between two different values, having a 50% - chance to use the wrong one. As a result, rendering at larger PPEM - values could yield uneven lowercase glyph heights. - - Problem reported by Christoph Koeberlin . - - * src/autofit/afblue.dat (AF_BLUE_STRING_LATIN_SMALL): Replaced - with... - (AF_BLUE_STRING_LATIN_SMALL_TOP, AF_BLUE_STRING_LATIN_SMALL_BOTTOM): - ... New, extended sets. - (AF_BLUE_STRINGSET_LATN): Updated. - - * src/autofit/afblue.c, scr/autofit/afblue.h: Regenerated. - -2017-02-04 Werner Lemberg - - Make `freetype-config' a wrapper of `pkg-config' if possible. - - Based on ideas taken from - - http://pkgs.fedoraproject.org/cgit/rpms/freetype.git/tree/freetype-multilib.patch - http://pkgs.fedoraproject.org/cgit/rpms/freetype.git/tree/freetype-2.5.3-freetype-config-prefix.patch - - * builds/unix/freetype-config.in: Rewritten. Use `pkg-config' to - set output variables if program is available. - - * docs/CHANGES, docs/freetype-config.1: Updated. - -2017-02-04 Werner Lemberg - - * builds/unix/unix-def.in (freetype-config): Fix permissions. - -2017-02-03 Werner Lemberg - - * src/autofit/afglobal.c (af_face_globals_free): Erase useless code. - -2017-02-03 Werner Lemberg - - * include/freetype/ftgasp.h (FT_GASP_SYMMETRIC_GRIDFIT): Fix value. - - Reported by Behdad. - -2017-02-02 Werner Lemberg - - [truetype] Fix MVAR post-action handling. - - Reported as - - https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=509 - - * src/truetype/ttobjs.c (tt_size_reset): Do nothing for CFF2. This - is important to make `tt_size_reset_iterator' (called in - `tt_apply_mvar') always work. - -2017-02-02 Werner Lemberg - - Make compilation with FT_CONFIG_OPTION_PIC work again. - - All code committed here is guarded with `FT_CONFIG_OPTION_PIC'. - - * include/freetype/internal/services/svmetric.h - (FT_DEFINE_SERVICE_METRICSVARIATIONSREC): Remove trailing semicolon. - - * src/autofit/aflatin.c (af_latin_hints_compute_edges, - af_latin_hint_edges): Provide `globals' variable. - - * src/autofit/afloader.c (af_loader_load_glyph): Remove shadowing - variable. - - * src/autofit/afmodule.c (AF_SCRIPT_CLASSES_GET, - AF_STYLE_CLASSES_GET): Redefine. - - * src/autofit/aftypes.h (AF_DEFINE_WRITING_SYSTEM_CLASS): Fix typo. - - * src/cff/cffparse.c (CFF_FIELD_BLEND): Provide it. - - * src/cff/cffpic.h (CffModulePIC): Fix typo. - -2017-01-31 Alexei Podtelezhnikov - - * src/smooth/ftgrays.c (gray_render_scanline): Improve code. - -2017-01-31 Werner Lemberg - - [cff] Provide metrics variation service interface (#50196). - - Only now I've got an OTF with an HVAR table for testing... - - The code in `ftmm.c' uses `FT_FACE_LOOKUP_SERVICE' to get the - metrics variations interface. However, this didn't work with - `FT_FACE_FIND_GLOBAL_SERVICE' used in `sfnt_init_face'. - - * src/cff/cffdrivr.c: Include FT_SERVICE_METRICS_VARIATIONS_H. - (cff_hadvance_adjust, cff_metrics_adjust): Wrapper functions for - metric service functions from the `truetype' module. - (cff_service_metrics_variations): New service. - (cff_services): Updated. - - * src/cff/cffpic.h (CFF_SERVICE_METRICS_VAR_GET): New macro. - [FT_CONFIG_OPTION_PIC]: Synchronize code. - - * src/sfnt/sfobjs.c (sfnt_init_face): Replace call to - FT_FACE_FIND_GLOBAL_SERVICE with `ft_module_get_service' to always - load the service from the `truetype' module. - -2017-01-31 Werner Lemberg - - Add framework to support services with 9 functions. - - * include/freetype/internal/ftserv.h (FT_DEFINE_SERVICEDESCREC9): - New macro. - -2017-01-31 Werner Lemberg - - [base] Fix error handing in MM functions. - - * src/base/ftmm.c (FT_Set_Var_Design_Coordinates, - FT_Set_MM_Blend_Coordinates, FT_Set_Var_Blend_Coordinates): - Implement it. - -2017-01-31 Werner Lemberg - - [truetype] Fix sanity check for `gvar' table (#50184). - - * src/truetype/ttgxvar.c (ft_var_load_gvar): There might be missing - variation data for some glyphs. - -2017-01-31 Werner Lemberg - - [autofit] Avoid uninitialized jumps (#50191). - - * src/autofit/afcjk.c (af_cjk_metrics_check_digits), - src/autofit/aflatin.c (af_latin_metrics_check_digits): Initialize - `advance'. - -2017-01-27 Werner Lemberg - - s/GB2312/PRC/. - - * include/freetype/freetype.h (FT_ENCODING_PRC): New enum value. - (FT_ENCODING_GB2312): Deprecated. - - * include/freetype/ttnameid.h (TT_MS_ID_PRC): New macro. - (TT_MS_ID_GB2312): Deprecated. - - * src/sfnt/sfobjs.c (sfnt_find_encoding): Updated. - - * docs/CHANGES: Updated. - -2017-01-26 Werner Lemberg - - [base] Add `FT_Get_Sfnt_LangTag' function. - - * include/freetype/ftsnames.h (FT_SfntLangTag): New structure. - (FT_Get_Sfnt_LangTag): New declaration. - - * src/base/ftsnames.c (FT_Get_Sfnt_LangTag): New function. - - * docs/CHANGES: Updated. - -2017-01-26 Werner Lemberg - - [sfnt] Support `name' table format 1. - - * include/freetype/internal/tttypes.h (TT_LangTagRec): New - structure. - (TT_NameTableRec): Add fields `numLangTagRecords' and `langTags'. - - * src/sfnt/ttload.c (tt_face_load_name): Add support for language - tags. - Reduce array size of name strings in case of invalid entries. - (tt_face_free_name): Updated. - - * docs/CHANGES: Updated. - -2017-01-25 Werner Lemberg - - [sfnt] s/TT_NameEntry/TT_Name/. - - * include/freetype/internal/tttypes.h (TT_NameEntryRec): Renamed - to... - (TT_NameRec): This. - (TT_NameTableRec): Updated. - - * src/base/ftsnames.c (FT_Get_Sfnt_Name): Updated. - - * src/sfnt/sfdriver.c (sfnt_get_ps_name): Updated. - - * src/sfnt/sfobjs.c (tt_name_entry_ascii_from_utf16, - tt_name_entry_ascii_from_other): Renamed to... - (tt_name_ascii_from_utf16, tt_name_entry_ascii_from_other): This, - respectively. - (TT_NameEntry_ConvertFunc): Renamed to... - (TT_Name_ConvertFunc): This. - (tt_face_get_name): Updated. - - * src/sfnt/ttload.c (tt_face_load_name, tt_face_free_name): - Updated. - -2017-01-24 Werner Lemberg - - [sfnt] Fix Postscript name service for symbol fonts. - - * src/sfnt/sfdriver.c (sfnt_get_ps_name): Accept PID/EID=3/0 - entries also. - -2017-01-24 Werner Lemberg - - [truetype] For OpenType 1.7: s/preferred/typographic/ (sub)family. - - * include/freetype/ftsnames.h - (FT_PARAM_TAG_IGNORE_TYPOGRAPHIC_FAMILY, - FT_PARAM_TAG_IGNORE_TYPOGRAPHIC_SUBFAMILY): New macros. - (FT_PARAM_TAG_IGNORE_PREFERRED_FAMILY, - FT_PARAM_TAG_IGNORE_PREFERRED_SUBFAMILY): Deprecated. - - * include/freetype/ttnameid.h (TT_NAME_ID_TYPOGRAPHIC_FAMILY, - TT_NAME_ID_TYPOGRAPHIC_SUBFAMILY): New macros. - (TT_NAME_ID_PREFERRED_FAMILY, TT_NAME_ID_PREFERRED_SUBFAMILY): - Deprecated. - - * src/sfnt/sfobjs.c (sfnt_load_face): Updated. - - * docs/CHANGES: Updated. - -2017-01-23 Werner Lemberg - - [base] Add `FT_Set_Default_Properties' (#49187). - - * include/freetype/ftmodapi.h: Add declaration. - - * src/base/ftinit.c (ft_set_default_properties): Renamed to... - (FT_Set_Default_Properties): ... this. - (FT_Init_FreeType): Updated. - - * docs/CHANGES: Updated. - -2017-01-23 Werner Lemberg - - [truetype] Minor updates for OpenType 1.8.1. - - * src/truetype/ttgxvar.h (GX_MVarTable): `axisCount' has been - removed from the specification; it is now reserved. - - * src/truetype/ttgxvar.c (ft_var_load_mvar): Updated. - (GX_FVar_Head): Remove `countSizePairs'; the corresponding data - field in the `MVAR' table is now reserved. - (fvar_fields): Updated. - -2017-01-23 Werner Lemberg - - [truetype] Avoid segfault for invalid variation data. - - * src/truetype/ttgxvar.c (ft_var_load_item_variation_store): Assure - `itemCount' is not zero. - - Reported as - - https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=441 - -2017-01-20 Werner Lemberg - - * src/truetype/ttinterp.c (TT_RunIns): Adjust loop detector limits. - -2017-01-17 Werner Lemberg - - * include/freetype/ttnameid.h: Updated to OpenType 1.8.1. - - (TT_APPLE_ID_FULL_UNICODE): New macro. - - (TT_MS_LANGID_BOSNIAN_BOSNIA_HERZ_CYRILLIC, - TT_MS_LANGID_UPPER_SORBIAN_GERMANY, - TT_MS_LANGID_LOWER_SORBIAN_GERMANY, TT_MS_LANGID_IRISH_IRELAND, - TT_MS_LANGID_INUKTITUT_CANADA_LATIN, TT_MS_LANGID_BASHKIR_RUSSIA, - TT_MS_LANGID_LUXEMBOURGISH_LUXEMBOURG, - TT_MS_LANGID_GREENLANDIC_GREENLAND, TT_MS_LANGID_MAPUDUNGUN_CHILE, - TT_MS_LANGID_MOHAWK_MOHAWK, TT_MS_LANGID_BRETON_FRANCE, - TT_MS_LANGID_OCCITAN_FRANCE, TT_MS_LANGID_CORSICAN_FRANCE, - TT_MS_LANGID_ALSATIAN_FRANCE, TT_MS_LANGID_YAKUT_RUSSIA, - TT_MS_LANGID_KICHE_GUATEMALA, TT_MS_LANGID_KINYARWANDA_RWANDA, - TT_MS_LANGID_WOLOF_SENEGAL, TT_MS_LANGID_DARI_AFGHANISTAN): New - macros. - - (TT_MS_LANGID_SERBIAN_BOSNIA_HERZ_CYRILLIC): Fix value. - - (TT_MS_LANGID_GERMAN_LIECHTENSTEIN, TT_MS_LANGID_CATALAN_CATALAN, - TT_MS_LANGID_CHINESE_MACAO, TT_MS_LANGID_SPANISH_SPAIN_MODERN_SORT, - TT_MS_LANGID_KOREAN_KOREA, TT_MS_LANGID_ROMANSH_SWITZERLAND, - TT_MS_LANGID_SLOVENIAN_SLOVENIA, TT_MS_LANGID_BASQUE_BASQUE, - TT_MS_LANGID_SETSWANA_SOUTH_AFRICA, - TT_MS_LANGID_ISIXHOSA_SOUTH_AFRICA, - TT_MS_LANGID_ISIZULU_SOUTH_AFRICA, TT_MS_LANGID_KAZAKH_KAZAKHSTAN, - TT_MS_LANGID_KYRGYZ_KYRGYZSTAN, TT_MS_LANGID_KISWAHILI_KENYA, - TT_MS_LANGID_TATAR_RUSSIA, TT_MS_LANGID_ODIA_INDIA, - TT_MS_LANGID_MONGOLIAN_PRC, TT_MS_LANGID_TIBETAN_PRC, - TT_MS_LANGID_WELSH_UNITED_KINGDOM, TT_MS_LANGID_GALICIAN_GALICIAN, - TT_MS_LANGID_SINHALA_SRI_LANKA, TT_MS_LANGID_TAMAZIGHT_ALGERIA, - TT_MS_LANGID_SESOTHO_SA_LEBOA_SOUTH_AFRICA, TT_MS_LANGID_YI_PRC, - TT_MS_LANGID_UIGHUR_PRC): New aliases. - - Remove commented out code. - - (TT_NAME_ID_LIGHT_BACKGROUND, TT_NAME_ID_DARK_BACKGROUND, - TT_NAME_ID_VARIATIONS_PREFIX): New macros. - - (HAVE_LIMIT_ON_IDENTS): Remove macro (which was useless since many - years), use guarded long macros by default and define short versions - as aliases for the long ones. - -2017-01-15 Werner Lemberg - - * src/truetype/ttgxvar.c (tt_apply_var): Handle underline parameters - also. - -2017-01-11 Werner Lemberg - - * src/base/ftobjs.c (ft_open_face_internal): Improve tracing. - -2017-01-11 Werner Lemberg - - [truetype] Actually use metrics variation service. - - * src/base/ftmm.c: Include FT_SERVICE_METRICS_VARIATIONS_H. - (ft_face_get_mvar_service): New auxiliary function to look up - metrics variation service. - (FT_Set_Var_Design_Coordinates, FT_Set_MM_Blend_Coordinates, - FT_Set_Var_Blend_Coordinates): Call metrics variation service. - - * src/truetype/ttobjs.c (tt_face_init): Use metrics variations for - named instances. - -2017-01-11 Werner Lemberg - - [truetype] Provide metrics variation service. - - * include/freetype/internal/services/svmetric.h - (FT_Metrics_Adjust_Func): Reduce number of necessary parameters. - - * src/truetype/ttgxvar.c: Include FT_LIST_H. - (tt_size_reset_iterator): New auxiliary function for... - (tt_apply_var): New function. - - * src/truetype/ttgxvar.h: Updated. - - * src/truetype/ttdriver.c (tt_service_metrics_variations): Add - `tt_apply_mvar'. - - * include/freetype/internal/ftserv.h (FT_ServiceCache): Add metrics - variation service. - -2017-01-11 Werner Lemberg - - [truetype] Parse `MVAR' table. - - * src/truetype/ttgxvar.h (MVAR_TAG_XXX): New macros for MVAR tags. - (GX_Value, GX_MVarTable): New structures. - (GX_Blend): Add it. - - * src/truetype/ttgxvar.c (GX_VALUE_SIZE, GX_VALUE_CASE, - GX_GASP_CASE): New macros. - (ft_var_get_value_pointer): New auxiliary function to get a pointer - to a value from various SFNT tables already stored in `TT_Face'. - (ft_var_load_mvar): New function. - (TT_Get_MM_Var): Call it. - (tt_done_blend): Updated. - -2017-01-11 Werner Lemberg - - [truetype] More preparations for MVAR support. - - * src/truetype/ttobjs.c (tt_size_reset): Add argument to make - function only recompute ascender, descender, and height. - - * src/truetype/ttobjs.h: Updated. - - * src/truetype/ttdriver.c (tt_size_select, tt_size_request): - Updated. - -2017-01-09 Werner Lemberg - - [pcf] Disable long family names by default. - - * include/freetype/config/ftoption.h - (PCF_CONFIG_OPTION_LONG_FAMILY_NAMES): Comment out. - -2017-01-09 Werner Lemberg - - [pcf] Make long family names configurable. - - The change from 2016-09-29 was too radical (except for people using - the openSuSE GNU/Linux distribution). To ameliorate the situation, - PCF_CONFIG_OPTION_LONG_FAMILY_NAMES gets introduced which controls - the feature; if set, a new PCF property option - `no-long-family-names' can be used to switch this feature off. - - * include/freetype/config/ftoption.h, devel/ftoption.h - (PCF_CONFIG_OPTION_LONG_FAMILY_NAMES): New option. - - * include/freetype/ftpcfdrv.h: New header file (only containing - comments currently, used for building the documentation). - - * include/freetype/config/ftheader.h (FT_PCF_DRIVER_H): New macro. - - * src/pcf/pcf.h (PCF_Driver): Add `no_long_family_names' field. - - * src/pcf/pcfdrivr.c: Include FT_SERVICE_PROPERTIES_H and - FT_PCF_DRIVER_H. - (pcf_property_set, pcf_property_get): New functions. - (pcf_service_properties): New service. - (pcf_services): Updated. - (pcf_driver_init) [PCF_CONFIG_OPTION_LONG_FAMILY_NAMES]: Handle - `no_long_family_names'. - - * src/pcf/pcfread.c (pcf_load_font): Handle `no_long_family_names' - and PCF_CONFIG_OPTION_LONG_FAMILY_NAMES. - - * docs/CHANGES: Updated. - -2017-01-09 Werner Lemberg - - [pcf] Introduce a driver structure. - - To be filled later on with something useful. - - * src/pcf/pcf.h (PCF_Driver): New structure. - - * src/pcf/pcfdrivr.c (pcf_driver_init, pcf_driver_done): New dummy - functions. - (pcf_driver_class): Updated. - -2017-01-08 Werner Lemberg - - [truetype] Again some GX code shuffling. - - We need this later on for MVAR also. - - * src/truetype/ttgxvar.c (tt_hadvance_adjust): Split off computing - an item store variation delta into... - (ft_var_get_item_delta): ...new function. - -2017-01-08 Werner Lemberg - - [truetype] Adjust font variation flags for MVAR. - - * include/freetype/internal/tttypes.h (TT_FACE_FLAG_VAR_XXX): - Remove all flags related to MVAR; replace it with... - (TT_FACE_FLAG_VAR_MVAR): ...this new macro. - (TT_Face): Remove `mvar_support' field (which was still unused). - -2017-01-06 Werner Lemberg - - [truetype] More GX code shuffling. - - We need this later on for MVAR also. - - * src/truetype/ttgxvar.c (tt_done_blend): Split off handling of item - variation store into... - (ft_var_done_item_variation_store): ...new function. - -2017-01-06 Werner Lemberg - - [truetype] More generalization of GX stuff. - - We need this later on for MVAR also. - - * src/truetype/ttgxvar.c (ft_var_load_delta_set_index_mapping): Add - parameters for delta-set index mapping and item variation store. - (ft_var_load_item_variation_store): Add parameter for item variation - store. - s/hvarData/varData/. - Move allocation of `hvar_table' to... - (ft_var_load_hvar): ...this function. - Updated. - -2017-01-06 Werner Lemberg - - [truetype] Some GX structure renames for generalization. - - We need this later on for MVAR also. - - * src/truetype/ttgxvar.h (GX_HVarData): Renamed to... - (GX_ItemVarData): ...this. - (GX_HVarRegion): Renamed to... - (GX_VarRegion): ...this. - (GX_HVStore): Renamed to... - (GX_ItemVarStore): ...this. - (GX_WidthMap): Renamed to... - (GX_DeltaSetIdxMap): ...this. - - (GX_HVarTable): Updated. - - * src/truetype/ttgxvar.c: Updated. - -2017-01-06 Werner Lemberg - - [truetype] Code shuffling. - - * src/truetype/ttgxvar.c (ft_var_load_hvar): Split off loading of - item variation store and delta set index mapping into... - (ft_var_load_item_variation_store, - ft_var_load_delta_set_index_mapping): ...new functions. - -2017-01-06 Werner Lemberg - - [truetype] Add HVAR access without advance width map. - - * src/truetype/ttgxvar.c (ft_var_load_hvar): Handle case where - `offsetToAdvanceWidthMapping' is zero. - (tt_hadvance_adjust): Implement direct deltaSet access by glyph - index. - -2017-01-06 Werner Lemberg - - [pcf] Revise driver. - - This commit improves tracing and handling of malformed fonts. In - particular, the changes to `pcf_get_properties' fix - - https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=379 - - * src/pcf/pcfread.c (tableNames): Use long names for better - readability. - (pcf_read_TOC): Allow at most 9 tables. - (pcf_get_properties): Allow at most 256 properties. - Limit strings array length to 256 * (65536 + 1) bytes. - Better tracing. - (pcf_get_metric): Trace metric data. - (pcf_get_metrics): Allow at most 65536 metrics. - Fix comparison of `metrics->ascent' and `metrics->descent' to avoid - potential overflow. - Better tracing. - (pcf_get_bitmaps): Allow at most 65536 bitmaps. - Better tracing. - (pcf_get_encodings, pcf_get_accel): Better tracing. - - * src/pcf/pcfdrivr.c (PCF_Glyph_Load): Don't trace `format' details. - These are now shown by `pcf_get_bitmaps'. - -2017-01-04 Werner Lemberg - - * src/pcf/pcfdrivr.c (PCF_Face_Init): Trace compression format. - -2017-01-04 Werner Lemberg - - [cff] More consistency checks for pure CFFs. - - Reported as - - https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=378 - - * src/cff/cffload.c (cff_font_load): Check element number and size - of Name and Top DICT indices. - -2017-01-04 Werner Lemberg - - [cff, truetype] Minor tracing improvement. - - * src/cff/cffobjs.c (cff_face_init), src/truetype/ttobjs.c - (tt_face_init): Indent first tracing message from SFNT driver. - -2017-01-03 Werner Lemberg - - [truetype] Various minor fixes. - - * src/truetype/ttgload.c (TT_Load_Simple_Glyph): Check instruction - size only if we do native hinting. - (TT_Load_Glyph): Trace returned error code. - - * src/truetype/ttobjs.c (tt_size_run_fpgm, tt_size_run_prep): Trace - returned error code. - (tt_size_ready_bytecode): Don't run `prep' table if `fpgm' table is - invalid. - -2017-01-03 Werner Lemberg - - [sfnt] Don't fail if PCLT, EBLC (and similar tables) are invalid. - - These tables are optional. - - * src/sfnt/sfobjs.c (sfnt_load_face): Implement it. - -2017-01-03 Werner Lemberg - - * src/cff/cffparse.c (cff_parse_num): Simplify. - -2017-01-03 Werner Lemberg - - Various fixes for clang's undefined behaviour sanitizer. - - * src/cff/cffload.c (FT_fdot14ToFixed): Fix casting. - (cff_blend_doBlend): Don't left-shift negative numbers. - Handle 5-byte numbers byte by byte to avoid alignment issues. - - * src/cff/cffparse.c (cff_parse_num): Handle 5-byte numbers byte by - byte to avoid alignment issues. - - * src/cid/cidload (cid_read_subrs): Do nothing if we don't have any - subrs. - - * src/psaux/t1decode.c (t1_decode_parse_charstring): Fix tracing. - - * src/tools/glnames.py (main): Put `DEFINE_PSTABLES' guard around - definition of `ft_get_adobe_glyph_index'. - - * src/psnames/pstables.h: Regenerated. - - * src/psnames/psmodule.c: Include `pstables.h' twice to get both - declaration and definition. - - * src/truetype/ttgxvar.c (FT_fdot14ToFixed, FT_intToFixed): Fix - casting. - -2017-01-01 Werner Lemberg - - [cff] Handle multiple `blend' operators in a row correctly. - - Reported as - - https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=368 - - * src/cff/cffload.c (cff_blend_doBlend): Adjust `parser->stack' - pointers into `subFont->blend_stack' after reallocation. - -2017-01-01 Werner Lemberg - - [sfnt] Return correct number of named instances for TTCs. - - Without this patch, requesting information for face index N returned - the data for face index N+1 (or index 0). - - * src/sfnt/sfobjs.c (sfnt_init_face): Correctly adjust `face_index' - for negative `face_instance_index' values. - -2016-12-31 Werner Lemberg - - */*: Use hex numbers for errors in tracing messages. - -2016-12-31 Werner Lemberg - - [truetype] Check axis count in HVAR table. - - Reported as - - https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=362 - - * src/truetype/ttgxvar.c (ft_var_load_hvar): Check axis count. - (ft_var_load_avar): Fix tracing message. - ---------------------------------------------------------------------------- -Copyright 2016-2018 by +Copyright 2017-2018 by David Turner, Robert Wilhelm, and Werner Lemberg. This file is part of the FreeType project, and may only be used, modified, diff --git a/ChangeLog.28 b/ChangeLog.28 new file mode 100644 index 000000000..ca1ff3850 --- /dev/null +++ b/ChangeLog.28 @@ -0,0 +1,3136 @@ +2017-09-16 Werner Lemberg + + * Version 2.8.1 released. + ========================= + + + Tag sources with `VER-2-8-1'. + + * docs/VERSION.TXT: Add entry for version 2.8.1. + * docs/CHANGES: Updated. + + * README, Jamfile (RefDoc), builds/windows/vc2005/freetype.vcproj, + builds/windows/vc2005/index.html, + builds/windows/vc2008/freetype.vcproj, + builds/windows/vc2008/index.html, + builds/windows/vc2010/freetype.vcxproj, + builds/windows/vc2010/index.html, + builds/windows/visualc/freetype.dsp, + builds/windows/visualc/freetype.vcproj, + builds/windows/visualc/index.html, + builds/windows/visualce/freetype.dsp, + builds/windows/visualce/freetype.vcproj, + builds/windows/visualce/index.html, + builds/wince/vc2005-ce/freetype.vcproj, + builds/wince/vc2005-ce/index.html, + builds/wince/vc2008-ce/freetype.vcproj, + builds/wince/vc2008-ce/index.html: s/2.8/2.8.1/, s/28/281/. + + * include/freetype/freetype.h (FREETYPE_PATCH): Set to 1. + + * builds/unix/configure.raw (version_info): Set to 21:0:15. + * CMakeLists.txt (VERSION_PATCH): Set to 1. + +2017-09-13 suzuki toshiya + + [sfnt] lowest gcc for vectors (e1d0249e) is changed to 4.7. + + __builtin_shuffle() was introduced in gcc-4.7. The lowest + gcc to enable vector operation is delayed from 4.6 to 4.7. + + * src/sfnt/pngshim.c (premultiply_data): Fix cpp-macro to + enable the vector operation, to change the lowest gcc version + from 4.6 to 4.7. + +2017-09-13 suzuki toshiya + + [cache] Fix a possible overflow by signed integer comparison. + + Improve the code by 5d3ff05615dda6d1325ed612381a17a0df04c975 , + issues are found by Behdad Esfahbod and Werner Lemberg. + + * src/cache/ftcbasic.c (FTC_ImageCache_Lookup): Replace + a subtraction to check higher bit by a bit operation, + and cpp-conditionalize for appropriate systems. Add better + documentation to the comment. + (FTC_ImageCache_LookupScaler): Ditto. + (FTC_SBitCache_Lookup): Ditto. + (FTC_SBitCache_LookupScaler): Ditto. + +2017-09-13 Werner Lemberg + + [autofit] Really fix #41334 (#52000). + + * src/autofit/aflatin.c (af_latin_hints_compute_segments): Set + `segment->delta' everywhere. + +2017-09-12 suzuki toshiya + + [autofit, sfnt] Fix for `make multi'. + + * src/autofit/afshaper.c: Include FT_ADVANCE_H, to use + FT_Get_Advance() in it. + * src/sfnt/ttcmap.c: Include FT_SERVICE_POSTSCRIPT_CMAPS_H + to use PS_Unicodes in it, also include `ttpost.h' to use + tt_face_get_ps_name() in it. + +2017-09-11 Azzuro + + [build] Improve builds with different MS Visual Studio versions. + + * builds/windows/vc2010/freetype.vcxproj: Switch platform toolset + according to the Visual Studio version. + +2017-09-11 Werner Lemberg + + * src/sfnt/ttkern.c (tt_face_load_kern): Reject format 2 tables. + + Reported by Behdad. + +2017-09-09 Werner Lemberg + + [autofit] Improve communication with ftgrid. + + * src/autofit/afhints.c (af_glyph_hints_get_segment_offset): + Provide values in font units. + +2017-09-08 suzuki toshiya + + [base] Remove a check for resource ID in the resource fork driver. + + LastResort.dfont has a marginal resource ID 0xFFFF for sfnt + resource. Inside Macintosh: More Macintosh Toolbox, `Resource IDs' + (1-46), tells that some IDs are reserved and should not be used. + FreeType2 just uses resource ID to sort the fragmented resource. + To accept the marginal fonts, the checking is removed. + + * src/base/ftrfork.c (FT_Raccess_Get_DataOffsets): Remove res_id + validity check, fix a trace message format. + +2017-09-08 suzuki toshiya + + [sfnt, truetype] Register the tags for marginal fonts. + + The first 32bit of standard TrueType variants is 0x00010000, + `OTTO', `ttcf', `true' or `typ1'. 2 marginal dfonts on legacy Mac + OS X, Keyboard.dfont and LastResort.dfont, have the sfnt resources + starting 0xA5 followed by `kbd' or `lst'. Considering the following + data could be parsed as conventional TrueType fonts, the header + checking is updated to allow these tags. It seems that recent Mac + OS X has already switched to normal TTF for these fonts. + + See the discussion at + http://u88.n24.queensu.ca/exiftool/forum/index.php?topic=3931.0 + + * include/freetype/tttags.h (TTAG_0xA5kbd, TTAG_0xA5lst): New header + tags for Keyboard.dfont and LastResort.dfont. + * src/sfnt/sfobjs.c (sfnt_open_font): Accept the sfnt resource + starts with TTAG_0xA5kbd or TTAG_0xA5lst. + * src/truetype/ttobjs.c (tt_face_init): Accept the face with the + format tag is TTAG_0xA5kbd or TTAG_0xA5lst. + +2017-09-05 Werner Lemberg + + Fix multiple calls of `FT_Bitmap_Convert'. + + The documentation of `FT_Bitmap_Convert' says that multiple calls do + proper reallocation of the target FT_Bitmap object. However, this + failed for the sequence + + non-empty bitmap + empty bitmap + non-empty bitmap + + Reason was that `FT_Bitmap_Convert' only reallocated the bitmap + buffer if it became too small; it didn't make the buffer smaller. + For an empty bitmap following a non-empty one, only the buffer + dimension got set to zero, without deallocation. If the next call + was a non-empty buffer again, an assertion in `ft_mem_qrealloc' was + triggered. + + * src/base/ftbitmap.c (FT_Bitmap_Convert): Always reallocate target + buffer to the correct size. + + * docs/CHANGES: Document it. + +2017-09-05 Werner Lemberg + + [bdf] Fix size and resolution handling. + + * src/bdf/bdfdrivr.c (BDF_Face_Init): Use `SIZE' values if + `POINT_SIZE', `RESOLUTION_X', or `RESOLUTION_Y' properties are + missing. + + * docs/CHANGES: Document it. + +2017-08-25 Alexei Podtelezhnikov + + Swap `ALLOC_MULT' arguments (#51833). + + * src/base/ftbitmap.c (ft_bitmap_assure_buffer): Updated. + * src/winfonts/winfnt.c (FNT_Load_Glyph): Updated. + * src/raster/ftrend1.c (ft_raster1_render): Updated. + +2017-08-23 Werner Lemberg + + [sfnt] Fix clang compilation (#51788). + + * src/sfnt/pngshim.c (premultiply_data): Use vectors instead of + scalars. + (vector_shuffle): New macro to take care of a different built-in + function name on clang. + +2017-08-22 Werner Lemberg + + [base] Don't zero out allocated memory twice (#51816). + + Patch applied from bug report. + + * src/base/ftutil.c (ft_mem_qrealloc): Use low-level allocation to + avoid unnecessary overhead. + +2017-08-22 Werner Lemberg + + [truetype] Integer overflow. + + Changes triggered by + + https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=3107 + + * src/truetype/ttinterp.c (Ins_MDRP, Ins_MIRP, Ins_ALIGNPTS): Use + NEG_LONG. + +2017-08-17 Alexei Podtelezhnikov + + [sfnt] Avoid synthetic unicode for symbol fonts with PUA. + + Reported as + + https://bugs.chromium.org/p/chromium/issues/detail?id=754574 + + * src/sfnt/sfobjs.c (sfnt_load_face): Check for FT_ENCODING_MS_SYMBOL. + +2017-08-16 Werner Lemberg + + * src/sfnt/pngshim.c (premultiply_data): Fix compiler warnings. + +2017-08-15 Behdad Esfahbod + + [sfnt] Speed up PNG image loading. + + This reduces the overhead of `premultiply_data' by 60%. + + * src/sfnt/pngshim.c (premultiply_data): Provide code which uses + gcc's (and clang's) `vector_byte' attribute to process 4 pixels at a + time. + +2017-08-11 Werner Lemberg + + [sfnt, truetype] Improve handling of missing sbits. + + Requested by Behdad. + + Modern bitmap-only SFNTs like `NotoColorEmoji.ttf' don't contain + entries in the bitmap strike(s) for empty glyphs. Instead, they + rely that a space glyph gets created from the font's metrics data. + This commit makes FreeType behave accordingly. + + * include/freetype/fterrdef.h (FT_Err_Missing_Bitmap): New error + code. + + * src/sfnt/ttsbit.c (tt_sbit_decoder_load_image): Change error codes + to make a distinction between a missing bitmap in a composite and a + simple missing bitmap. + + * src/truetype/ttgload.c (TT_Load_Glyph): For a missing bitmap (in a + bitmap-only font), synthesize an empty bitmap glyph if metrics are + available. + +2017-08-10 Werner Lemberg + + [base] Minor API improvement for default variation axis setting. + + * src/base/ftmm.c (FT_Set_MM_Design_Coordinates, + FT_Set_Var_Design_Coordinates, FT_Set_MM_Blend_Coordinates, + FT_Set_Var_Blend_Coordinates): Allow coords==NULL if num_coords==0. + + * docs/CHANGES: Updated. + +2017-08-08 Werner Lemberg + + [psnames] Really fix issue #49949. + + We now use a separate preprocessor macro to handle both definition + and declaration of the glyph name arrays. + + * src/psnames/psmodule.c (DEFINE_PS_TABLE_DATA): New macro. + + * src/tools/glnames.py (StringTable::dump, + StringTable::dump_sublist): Use `DEFINE_PS_TABLE_DATA'. + (dump_encoding): Ditto. + (main): Use `wb' mode for writing the output file, which works on + Windows also. + + * src/psnames/pstables.h: Regenerated. + +2017-08-08 Alexei Podtelezhnikov + + [smooth] Harmony LCD rendering. + + This is a new technology for LCD-optimized rendering. It capitalizes + on the fact that each color channel grid is shifted by a third of a + pixel. Therefore it is logical to render 3 separate monochrome + bitmaps shifting the outline by 1/3 pixel, and then combine them. + Importantly, the resulting output does not require additional LCD + filtering. + + * src/smooth/ftsmooth.c (ft_smooth_render_generic) + [!FT_CONFIG_OPTION_SUBPIXEL_RENDERING]: Implement new LCD-optimized + rendering. + + * include/freetype/ftlcdfil.h, include/freetype/freetype.h, + include/freetype/config/ftoption.h, devel/ftoption.h: Updated + documentation. + +2017-08-08 Alexei Podtelezhnikov + + * src/smooth/ftsmooth.c (ft_smooth_render_generic): Clean up. + +2017-08-08 Alexei Podtelezhnikov + + * src/sfnt/ttpost.c (format): Use otspec-compliant versions. + +2017-08-05 Werner Lemberg + + [truetype] Integer overflow. + + Reported as + + https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2868 + + * src/truetype/ttinterp.c (Ins_ALIGNRP): Use NEG_LONG. + +2017-08-05 Werner Lemberg + + [base, truetype] New function `FT_Get_Var_Axis_Flags'. + + The reserved `flags' field got a value in OpenType version 1.8.2; + unfortunately, the public `FT_Var_Axis' structure misses the + corresponding element. Since we can't add a new field, we add an + access function. + + * src/base/ftmm.c (FT_Get_Var_Axis_Flags): New function. + + * include/freetype/ftmm.h (FT_VAR_AXIS_FLAG_HIDDEN): New macro. + Updated. + + * src/truetype/ttgxvar.c (TT_Get_MM_Var): Increase allocated memory + of `mmvar' to hold axis flags. + Fill the axis flags array. + + * docs/CHANGES: Updated. + +2017-08-03 Nikolaus Waxweiler + + [truetype] Fix metrics of B/W hinting in v40 mode. + + Phantom points are now saved outside v40 backwards compatibility + mode. This fixes the jumping glyphs when switching between v35 and + v40 monochrome mode. + + * src/truetype/ttgload.c (TT_Hint_Glyph): Fix inversed bool logic. + +2017-08-03 Nikolaus Waxweiler + + [truetype] Do not set any ClearType flags in v40 monochrome mode. + + This fixes weird behavior of instructions that resulted in rendering + differences between v35 and v40 in monochrome mode, e.g., in + `timesbi.ttf'. + + * src/truetype/ttinterp.c (Ins_GETINFO) + [TT_SUPPORT_SUBPIXEL_HINTING_MINIMAL]: Check + `subpixel_hinting_lean'. + +2017-08-01 Werner Lemberg + + * src/truetype/ttgxvar.c (TT_Get_MM_Var): Fix thinko. + +2017-08-01 Behdad Esfahbod + + [truetype] Fix loading of named instances. + + * src/truetype/ttgxvar.c (TT_Get_MM_Var): Preserve file position + while loading the `avar' table. + +2017-08-01 Werner Lemberg + + [sfnt, truetype] Minor adjustments for OpenType 1.8.2. + + * src/sfnt/sfobjs.c (sfnt_load_face): The units per EM value has now + (tighter) limits. + + * src/truetype/ttgload.c (load_truetype_glyph): The new OpenType + version explicitly allows all negative values for the number of + contours if we have a composite glyph (this is for better backwards + compatibility I guess), but it still recommends value -1. + +2017-07-26 Werner Lemberg + + [cff] Integer overflow. + + Reported as + + https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2738 + + * src/cff/cf2hints.c (cf2_glyphpath_computeOffset, + cf2_glyphpath_curveTo): Use ADD_INT32. + +2017-07-13 Werner Lemberg + + [base] Fix memory leak. + + Reported as + + https://bugs.chromium.org/p/chromium/issues/detail?id=738362 + + * src/base/ftglyph.c (FT_Get_Glyph): Do proper deallocation in case + of error. + +2017-07-12 Werner Lemberg + + [base] Integer overflow. + + Reported as + + https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2573 + + * src/base/ftobjs.c (ft_glyphslot_grid_fit_metrics): Use + FT_PIX_CEIL_LONG and FT_PIX_ROUND_LONG. + +2017-07-12 Werner Lemberg + + * src/truetype/ttpload.c (tt_face_get_location): Off-by-one typo. + + Also improve tracing message. + + Problem reported as + + https://bugs.chromium.org/p/chromium/issues/detail?id=738919 + +2017-07-07 Werner Lemberg + + [cff] Integer overflow. + + Reported as + + https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2517 + + * src/cff/cf2blues.c (cf2_blues_capture): Use SUB_INT32. + +2017-07-05 Werner Lemberg + + * src/sfnt/ttcmap.c (tt_cmap_unicode_class_rec): Fix warning. + +2017-07-05 Werner Lemberg + + * src/truetype/ttgxvar.c (FT_Stream_SeekSet): Fix warning (#51395). + +2017-07-04 Werner Lemberg + + [truetype] Prevent address overflow (#51365). + + * src/truetype/ttgxvar.c (FT_Stream_SeekSet): Add guard. + +2017-07-03 Alexei Podtelezhnikov + + * src/base/ftlcdfil.c (ft_lcd_filter_fir): Improve code. + +2017-07-03 Werner Lemberg + + [truetype] Integer overflow. + + Reported as + + https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2455 + + * src/truetype/ttinterp.c (Ins_SCFS): Use SUB_LONG. + +2017-07-01 Alexei Podtelezhnikov + + * src/sfnt/sfobjs.c (sfnt_load_face): Ignore No_Unicode_Glyph_Name. + +2017-06-28 Ben Wagner + + Avoid Microsoft compiler warnings (#51331). + + While clang's sanitizer recommends a cast to unsigned for safe + negation (to handle -INT_MIN), both MSVC and Visualc emit warning + C4146 if an unsigned value gets negated. + + * include/freetype/internal/ftcalc.h (NEG_LONG, NEG_INT32), + src/base/ftcalc.c (FT_MOVE_SIGN): Replace negation with a + subtraction. + +2017-06-27 Werner Lemberg + + * src/cff/cffparse.c (do_fixed): Fix typo. + + Spotted by chris . + +2017-06-27 Werner Lemberg + + [truetype] Integer overflows. + + Reported as + + https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2384 + https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2391 + + * src/base/ftcalc.c (FT_MulDiv, FT_MulDiv_No_Round, FT_DivFix): Use + NEG_LONG. + + * src/truetype/ttinterp.c (Ins_SxVTL): Use NEG_LONG. + +2017-06-24 Werner Lemberg + + [truetype] Integer overflows. + + Reported as + + https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2364 + + * src/truetype/ttinterp.c (Ins_ISECT): Use NEG_LONG. + +2017-06-22 Werner Lemberg + + [cff, truetype] Integer overflows. + + Reported as + + https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2323 + https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2328 + + * src/cff/cf2blues.c (cf2_blues_capture): Use ADD_INT32 and + SUB_INT32. + + * src/truetype/ttinterp.c (Ins_SDPVTL): Use SUB_LONG and NEG_LONG. + +2017-06-21 Alexei Podtelezhnikov + + [sfnt] Synthesize a Unicode charmap if one is missing. + + * src/sfnt/ttcmap.h (tt_cmap_unicode_class_rec): Declare it. + * src/sfnt/ttcmap.c (tt_get_glyph_name, tt_cmap_unicode_init, + tt_cmap_unicode_done, tt_cmap_unicode_char_index, + tt_cmap_unicode_char_next, tt_cmap_unicode_class_rec): Implement + synthetic Unicode charmap class. + (tt_get_cmap_info): Make sure the callback is available. + + * src/sfnt/sfobjs.c (sfnt_load_face) + [FT_CONFIG_OPTION_POSTSCRIPT_NAMES]: If Unicode charmap is missing, + synthesize one. + + * include/freetype/config/ftoption.h: Document it. + * devel/ftoption.h: Ditto. + +2017-06-20 Tony Theodore + + Fix pkg-config in freetype-config for cross-compiling (#51274). + + * builds/unix/unix-def.in (PKG_CONFIG): New variable. + (freetype-config): Use it in sed expression. + + * builds/unix/freetype-config.in: s/pkg-config/%PKG_CONFIG%/. + +2017-06-20 Werner Lemberg + + [cff, truetype] Integer overflows. + + Reported as + + https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2300 + https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2313 + + * src/cff/cf2hints.c (cf2_hintmap_adjustHints): Use ADD_INT32. + + * src/truetype/ttinterp.c (Ins_ABS): Avoid FT_ABS. + +2017-06-17 Alexei Podtelezhnikov + + [base, smooth] LCD filtering cleanups. + + * src/base/ftlcdfil.c (ft_lcd_filter_fir, _ft_lcd_filter_legacy): + Clean up, start filtering from the bottom-left origin. + + * src/smooth/ftsmooth.c (ft_smooth_render_generic): Updated. + +2017-06-16 Werner Lemberg + + [truetype] Integer overflows. + + Reported as + + https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2270 + https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2276 + + * src/truetype/ttinterp.c (Ins_MDRP, _iup_worker_interpolate): Use + ADD_LONG and SUB_LONG. + +2017-06-15 Werner Lemberg + + [bdf, cff] Integer overflows. + + Reported as + + https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2244 + https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2261 + + * src/bdf/bdfdrivr.c (BDF_Face_Init): Replace calls to FT_ABS with + direct code to avoid value negation. + + * src/cff/cf2blues.c (cf2_blues_capture): Use SUB_INT32 and + ADD_INT32. + +2017-06-13 Werner Lemberg + + * src/winfonts/winfnt.c (FNT_Face_Init): Don't set active encoding. + + FreeType only sets a default active encoding for Unicode. + +2017-06-13 Werner Lemberg + + [cff, truetype] Integer overflows. + + Reported as + + https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2216 + https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2218 + + * src/cff/cf2fixed.h (cf2_fixedAbs): Use NEG_INT32. + + * src/truetype/ttinterp.c (Ins_IP): Use SUB_LONG. + +2017-06-11 Werner Lemberg + + [cff] Integer overflows. + + Reported as + + https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2200 + https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2210 + + * src/cff/cf2hints.c (cf2_hintmap_insertHint): Use SUB_INT32 and + ADD_INT32. + + * src/cff/cf2intrp.c (cf2_interpT2CharString) : Use + ADD_INT32. + +2017-06-10 Werner Lemberg + + [truetype] Fix TT_Set_Var_Design. + + Reported by Nikolaus Waxweiler . + + * src/truetype/ttgxvar.c (TT_Set_Var_Design): Correctly handle the + case where we have less input coordinates than axes. + +2017-06-10 Werner Lemberg + + * src/base/ftcalc.c (FT_DivFix): Fix embarrassing typo. + + Bug introduced 2017-05-28. + +2017-06-09 Werner Lemberg + + [cff, truetype] Integer overflows. + + Reported as + + https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2144 + https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2151 + https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2153 + https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2173 + https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2186 + + * src/cff/cf2blues.c (cf2_blues_init): Use SUB_INT32. + + * src/truetype/ttinterp.c (Round_None, Round_To_Grid, + Round_To_Half_Grid, Round_Down_To_Grid, Round_Up_To_Grid, + Round_To_Double_Grid, Round_Super, Round_Super_45): Use ADD_LONG, + SUB_LONG, NEG_LONG, FT_PIX_ROUND_LONG, FT_PIX_CEIL_LONG, + FT_PAD_ROUND_LONG + (Ins_SxVTL, Ins_MIRP): Use SUB_LONG. + (_iup_worker_shift): Use SUB_LONG and ADD_LONG. + +2017-06-09 Werner Lemberg + + Provide more macros for flooring, ceiling, and rounding. + + These versions don't produce run-time errors due to integer + overflow. + + * include/freetype/internal/ftobjs.h: Include FT_INTERNAL_CALC_H. + (FT_PAD_ROUND_LONG, FT_PAD_CEIL_LONG, FT_PIX_ROUND_LONG, + FT_PIX_CEIL_LONG): New macros. + (FT_PAD_ROUND_INT32, FT_PAD_CEIL_INT32, FT_PIX_ROUND_INT32, + FT_PIX_CEIL_INT32): New macros. + +2017-06-09 Werner Lemberg + + Remove unused macros. + + * include/freetype/internal/ftcalc.h (ADD_INT, SUB_INT, MUL_INT, + NEG_INT): Deleted. + +2017-06-09 Werner Lemberg + + */*: Remove `OVERFLOW_' prefix. + + This increases readability. + +2017-06-07 Werner Lemberg + + [cff, truetype] Integer overflows. + + Reported as + + https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2133 + https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2137 + + * src/cff/cf2hints.c (cf2_hint_init): Use OVERFLOW_SUB_INT32. + + * src/truetype/ttinterp.c (PROJECT, DUALPROJ): Use + OVERFLOW_SUB_LONG. + +2017-06-06 Werner Lemberg + + [cff] Integer overflows. + + Reported as + + https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2109 + https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2110 + https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2122 + + * src/cff/cf2blues.c (cf2_blues_init): Use OVERFLOW_SUB_INT32. + + * src/cff/cf2hints.c (cf2_hintmap_map): Synchronize if-else + branches. + +2017-06-05 Werner Lemberg + + [cff] Integer overflow. + + Reported as + + https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2089 + + * src/cff/cffload.c (cff_blend_doBlend): User OVERFLOW_ADD_INT32. + +2017-06-04 Werner Lemberg + + [cff, truetype] Integer overflows. + + Reported as + + https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2075 + https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2088 + + * src/cff/cf2font.c (cf2_font_setup): Use OVERFLOW_MUL_INT32. + + * src/truetype/ttinterp.c (Ins_ISECT): Use OVERFLOW_MUL_LONG, + OVERFLOW_ADD_LONG, and OVERFLOW_SUB_LONG. + +2017-06-03 Werner Lemberg + + [base, cff, truetype] Integer overflows. + + Reported as + + https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2060 + https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2062 + https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2063 + https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2068 + + * src/base/ftobjs.c (ft_glyphslot_grid_fit_metrics): Use + OVERFLOW_ADD_LONG and OVERFLOW_SUB_LONG. + + * src/cff/cf2blues.c (cf2_blues_capture), src/cff/cf2hints.c + (cf2_hintmap_adjustHints): Use OVERFLOW_SUB_INT32. + + * src/truetype/ttgload.c (compute_glyph_metrics): User + OVERFLOW_SUB_LONG. + + * src/truetype/ttinterp.c (Direct_Move, Direct_Move_Orig, + Direct_Move_X, Direct_Move_Y, Direct_Move_Orig_X, + Direct_Move_Orig_Y, Move_Zp2_Point, Ins_MSIRP): Use + OVERFLOW_ADD_LONG and OVERFLOW_SUB_LONG. + +2017-06-03 Werner Lemberg + + * builds/unix/freetype-config.in: Fix pkg-config test (#51162). + + Patch directly taken from bug report. + +2017-06-03 Werner Lemberg + + [bdf] Synchronize sanity checks with pcf driver. + + Reported as + + https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2054 + https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2058 + + * src/bdf/bdfdrivr.c (BDF_Face_Init): Check font ascent and descent. + Check AVERAGE_WIDTH, POINT_SIZE, PIXEL_SIZE, RESOLUTION_X, and + RESOLUTION_Y properties. + +2017-06-03 Werner Lemberg + + [cff, truetype] Integer overflows. + + Reported as + + https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2047 + https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2057 + + * src/cff/cf2hints.c (cf2_hintmap_map): Use OVERFLOW_SUB_INT32. + + * src/truetype/ttinterp.c (Ins_ADD): Use OVERFLOW_ADD_LONG. + (Ins_SUB): Use OVERFLOW_SUB_LONG. + (Ins_NEG): Use NEG_LONG. + +2017-06-03 Werner Lemberg + + ftcalc.h: Avoid left-shift of negative numbers. + + Reported as + + https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2055 + + * include/freetype/internal/ftcalc.h (INT_TO_F26DOT6, + INT_TO_F2DOT14, INT_TO_FIXED, F2DOT14_TO_FIXED): Use multiplication. + +2017-06-02 Werner Lemberg + + [cff] Even more integer overflows. + + Reported as + + https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2046 + + * src/cff/cf2intrp.c (cf2_doStems, cf2_interpT2CharString): Use + OVERFLOW_ADD_INT32. + +2017-06-02 Werner Lemberg + + [cff] More integer overflows. + + Reported as + + https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2032 + + * src/cff/cf2blues.c (cf2_blues_init): Use OVERFLOW_SUB_INT32. + +2017-06-02 Werner Lemberg + + [bdf] Don't left-shift negative numbers. + + Reported as + + https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2031 + + * src/bdf/bdfdrivr.c (BDF_Face_Init): Use multiplication. + +2017-06-02 Werner Lemberg + + [bdf] Fix integer scanning routines. + + Reported as + + https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2029 + + * src/bdf/bdflib.c (_bdf_atoul, _bdf_atol, _bdf_atous, _bdf_atos): + Stop scanning if result would overflow. + +2017-06-02 Werner Lemberg + + [cff] Fix integer overflows. + + Reported as + + https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2027 + https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2028 + + * src/cff/cf2hints.c (cf2_hintmap_insertHint), src/cff/cf2intrp.c + (cf2_doFlex): Use OVERFLOW_ADD_INT32 and OVERFLOW_SUB_INT32. + +2017-06-01 Werner Lemberg + + [smooth] Some 32bit integer overflow run-time errors. + + * src/smooth/ftgrays.c [STANDALONE] (OVERFLOW_ADD_LONG, + OVERFLOW_SUB_LONG, OVERFLOW_MUL_LONG, NEG_LONG): New macros. + [!STANDALONE]: Include FT_INTERNAL_CALC_H. + (gray_render_cubic): Use those macros where appropriate. + +2017-06-01 Werner Lemberg + + * src/base/ftglyph.c (FT_Get_Glyph): Check `slot->advance'. + +2017-06-01 Werner Lemberg + + [psaux] 32bit integer overflow tun-time errors (#46149). + + * src/psaux/t1decode.c (t1_decoder_parse_charstrings): Use + OVERFLOW_ADD_LONG and OVERFLOW_SUB_LONG where appropriate. + +2017-06-01 Werner Lemberg + + * src/truetype/ttinterp.c (TT_RunIns): Adjust loop counter again. + + Problem reported by Marek Kašík . + + The problematic font that exceeds the old limit is Padauk-Bold, + version 3.002, containing bytecode generated by a buggy version of + ttfautohint. + +2017-05-31 Werner Lemberg + + [cff] 32bit integer overflow run-time errors 2/2 (#46149). + + This commit handles the new engine. + + * include/freetype/internal/ftcalc.h (OVERFLOW_ADD_INT32, + OVERFLOW_SUB_INT32, OVERFLOW_MUL_INT32, NEG_INT, NEG_LONG, + NEG_INT32): New macros. + + * src/cff/cf2ft.c (cf2_getScaleAndHintFlag): Use OVERFLOW_ADD_INT32. + + * src/cff/cf2hints.c (cf2_getWindingMomentum, cf2_hint_init, + cf2_hintmap_map, cf2_glyphpath_hintPoint, + cf2_glyphpath_computeIntersection, cf2_glyphpath_computeOffset, + cf2_glyphpath_lineTo, cf2_glyphpath_curveTo): Use + OVERFLOW_ADD_INT32, OVERFLOW_SUB_INT32, OVERFLOW_MUL_INT32, and + NEG_INT32 where appropriate. + + * src/cff/cf2intrp.c (cf2_doFlex, cf2_doBlend, + cf2_interpT2CharString): Ditto. + Also add some other code where needed to avoid overflow. + +2017-05-30 Werner Lemberg + + [cff] 32bit integer overflow run-time errors 1/2 (#46149). + + This commit handles the old engine. + + * src/cff/cffgload.c: Include FT_INTERNAL_CALC_H. + (cff_decoder_parse_charstrings): Use OVERFLOW_ADD_LONG and + OVERFLOW_SUB_LONG where needed. + + * src/cff/cffparse.c: Include FT_INTERNAL_CALC_H. + (power_ten_limits): New static array. + (do_fixed): Use it to prevent multiplication overflow. + (cff_parser_run): Use OVERFLOW_ADD_LONG. + +2017-05-30 Werner Lemberg + + [psaux] Correctly handle sequences of multiple number signs. + + * src/psaux/psconv.c (PS_Conv_Strtol, PS_Conv_ToFixed): Return zero + if we encounter more than a single sign. + +2017-05-29 Werner Lemberg + + [pcf] 32bit integer overflow run-time errors (#46149). + + * src/pcf/pcfread.c (pcf_get_accel): Add sanity checks for + `fontAscent' and `fontDescent'. + (pcf_load_font): Add sanity checks for global height. + Add sanity checks for AVERAGE_WIDTH, POINT_SIZE, PIXEL_SIZE, + RESOLUTION_X, and RESOLUTION_Y properties. + +2017-05-29 Werner Lemberg + + Handle some integer overflow run-time errors (#46149, #48979). + + This commit (mainly for 32bit CPUs) is the first of a series of + similar commits to handle known integer overflows. Basically, all + of them are harmless, since they affect rendering of glyphs only, + not posing security threats. It is expected that fuzzying will show + up more overflows, to be fixed in due course. + + The idea is to mark places where overflows can occur, using macros + that simply cast to unsigned integers, because overflow arithmetic + is well defined in this case. Doing so suppresses run-time errors + of sanitizers without adding computational overhead. + + * include/freetype/internal/ftcalc.h (OVERFLOW_ADD_INT, + OVERFLOW_SUB_INT, OVERFLOW_MUL_INT, OVERFLOW_ADD_LONG, + OVERFLOW_SUB_LONG, OVERFLOW_MUL_LONG): New macros. + + * src/base/ftcalc.c (FT_RoundFix, FT_CeilFix, FT_Matrix_Multiply, + FT_Matrix_Multiply_Scaled, FT_Vector_Transform_Scaled, + ft_corner_orientation): Use new macros. + + * src/base/ftoutln.c (FT_Outline_Get_Orientation): Use new macros. + +2017-05-28 Werner Lemberg + + * include/freetype/internal/ftcalc.h (FLOAT_TO_FIXED): Remove. + + This macro is not used. + +2017-05-28 Werner Lemberg + + [cff] s/cf2_floatToFixed/cf2_doubleToFixed/. + + The new name better describes what the macro actually does; + additionally, we don't need a trailing `f' for literals (there was + only a single such instance in the code, but this caused a clang + warning because the macro itself uses `double' literals). + + * src/cff/cf2blues.c, src/cff/cf2blues.h, src/cff/cf2fixed.h, + src/cff/cf2font.c, src/cff/cf2hints.c: Updated. + +2017-05-28 Werner Lemberg + + Fix negation of INT_MIN and LONG_MIN (#46149). + + * src/base/ftcalc.c (FT_MOVE_SIGN): Add argument to pass unsigned + value, to be used as the result. + (FT_MulDiv, FT_MulDiv_No_Round, FT_DivFix, FT_MulFix, + FT_Vector_NormLen): Updated. + +2017-05-27 Werner Lemberg + + [truetype] Fix handling of design coordinates (#51127). + + * src/truetype/ttgxvar.c (tt_set_mm_blend): Compute all design + coordinates if we have to create the `blends->coord' array. + (TT_Get_MM_Blend, TT_Get_Var_Design): Select default instance + coordinates if no instance is selected yet. + +2017-05-24 Werner Lemberg + + [bdf, pcf] Support ISO646.1991-IRV character encoding (aka ASCII). + + Problem reported by Marek Kašík , cf. + + https://bugzilla.redhat.com/show_bug.cgi?id=1451795 + + * src/bdf/bdfdrivr.c (BDF_Face_Init), src/pcf/pcfdrivr.c + (PCF_Face_Init): Implement it. + +2017-05-20 Nikolaus Waxweiler + + [truetype] Always use interpreter v35 for B/W rendering (#51051). + + * src/truetype/ttgload.c (tt_loader_init) + [TT_SUPPORT_SUBPIXEL_HINTING_MINIMAL]: Adjust + `subpixel_hinting_lean', `grayscale_cleartype', and + `vertical_lcd_lean' accordingly. + + * src/truetype/ttinterp.c (Ins_GETINFO): Updated. + (TT_RunIns): Update `backward_compatibility' flag. + +2017-05-20 Alexei Podtelezhnikov + + [smooth] Implement minimal dynamic padding for LCD filtering. + + Extra bitmap padding for LCD filtering depends on the filter. The + default 5-tap filter needs 2 extra subpixels. The light 3-tap filter + needs only 1 extra subpixel. This space could be already available + due to rounding. In order to optimize the padding, we now expand + CBox for the given filter weights before rounding. + + This change breaks current Skia (and Firefox). + + * include/freetype/internal/ftobjs.h (FT_LibraryRec) + [FT_CONFIG_OPTION_SUBPIXEL_RENDERING]: Remove `lcd_extra' field. + + * src/base/ftlcdfil.c (FT_Library_SetLcdFilterWeights, + FT_Library_SetLcdFilter): Remove `lcd_extra' initializations. + + * src/smooth/ftsmooth.c (ft_smooth_render_generic): Implement dymanic + LCD padding. + +2017-05-15 Werner Lemberg + + [sfnt] Return proper scaling values for SBIX bitmaps. + + Problem reported by Hin-Tak Leung . + + * src/sfnt/ttsbit.c (tt_face_load_strike_metrics): Implement it. + +2017-05-15 Werner Lemberg + + [truetype] Fix error handling for embedded bitmaps. + + Problem reported by Hin-Tak Leung . + + * src/truetype/ttgload.c (TT_Load_Glyph) + [TT_CONFIG_OPTION_EMBEDDED_BITMAPS]: Handle error if font is not + scalable. + +2017-05-15 Alexei Podtelezhnikov + + [autofit] Make autohint warping NORMAL option. + + This moves warping option from LIGHT to NORMAL mode. This makes LIGHT + truly void of hinting in x-direction, with left side bearing never + changed and right side bearing only altered by advance rounding. + Therefore, LIGHT is now ready to return fractional advance. As a + NORMAL option, warping substitutes normal hinting. + + * src/autofit/afcjk.c (af_cjk_hints_apply): Updated. + * src/autofit/aflatin.c (af_latin_hints_apply): Updated. + * src/autofit/aflatin2.c (af_latin2_hints_apply): Updated. + + * src/autofit/afloader.c (af_loader_load_glyph): Handle warping + phantom points as normal. + +2017-05-14 Werner Lemberg + + Remove remnants of raster pool. + + * include/freetype/internal/ftobjs.h (FT_LibraryRec): Remove + `raster_pool' and `raster_pool_size' fields. + + * src/base/ftobjs.c (FT_New_Library), src/raster/ftrend1.c + (ft_raster1_init), src/smooth/ftsmooth.c (ft_smooth_init): Updated. + +2017-05-13 Werner Lemberg + + * Version 2.8 released. + ======================= + + + Tag sources with `VER-2-8'. + + * docs/VERSION.TXT: Add entry for version 2.8. + * docs/CHANGES: Updated. + + * README, Jamfile (RefDoc), builds/windows/vc2005/freetype.vcproj, + builds/windows/vc2005/index.html, + builds/windows/vc2008/freetype.vcproj, + builds/windows/vc2008/index.html, + builds/windows/vc2010/freetype.vcxproj, + builds/windows/vc2010/index.html, + builds/windows/visualc/freetype.dsp, + builds/windows/visualc/freetype.vcproj, + builds/windows/visualc/index.html, + builds/windows/visualce/freetype.dsp, + builds/windows/visualce/freetype.vcproj, + builds/windows/visualce/index.html, + builds/wince/vc2005-ce/freetype.vcproj, + builds/wince/vc2005-ce/index.html, + builds/wince/vc2008-ce/freetype.vcproj, + builds/wince/vc2008-ce/index.html: s/2.7.1/2.8/, s/271/28/. + + * include/freetype/freetype.h (FREETYPE_MINOR): Set to 8. + (FREETYPE_PATCH): Set to 0. + + * builds/unix/configure.raw (version_info): Set to 20:0:14. + * CMakeLists.txt (VERSION_MINOR): Set to 8. + (VERSION_PATCH): Set to 0. + +2017-05-12 Hin-Tak Leung + + Fix `FT_UINT_TO_POINTER' macro for Windows. + + * builds/unix/ftconfig.in, builds/vms/ftconfig.h, + include/freetype/config/ftconfig.h (FT_UINT_TO_POINTER) [_WIN64]: + Fix definition. + +2017-05-11 Sascha Brawer + Werner Lemberg + Werner Lemberg + Werner Lemberg + Werner Lemberg + Werner Lemberg + Werner Lemberg + Werner Lemberg + Werner Lemberg + Werner Lemberg + Werner Lemberg + + [truetype] Add tricky font `DFGirl-W6-WIN-BF' (from Dynalab). + + Reported by Roy Tam . + + * src/truetype/ttobjs.c (tt_check_trickyness_family): Implement it. + +2017-05-07 Roy Tam + Werner Lemberg + + [truetype] More tricky fonts (mainly from Dynalab). + + * src/truetype/ttobjs.c (tt_check_trickyness_family, + tt_check_trickyness_sfnt_ids): Add them. + +2017-05-07 Werner Lemberg + + [truetype] Add tricky font `DLCHayMedium' (from Dynalab). + + Reported by Roy Tam . + + * src/truetype/ttobjs.c (tt_check_trickyness_family): Implement it. + +2017-05-03 Werner Lemberg + + */*: s/backwards compatibility/backward compatibility/. + +2017-05-03 Sascha Brawer + Werner Lemberg + Werner Lemberg + + [autofit] Add blue-zone support for Sundanese script. + + This essentially moves the Sundanese script from the `Indic' hinter + to the `Latin' hinter. + + * src/autofit/afblue.dat: Add blue zone data for Sundanese. + + * src/autofit/afblue.c, src/autofit/afblue.h: Regenerated. + + * src/autofit/afscript.h: Add Sundanese standard character and move + data out of AF_CONFIG_OPTION_INDIC block. + + * src/autofit/afranges.c: Move Sundanese data out of + AF_CONFIG_OPTION_INDIC block. + + * src/autofit/afstyles.h: Update Sundanese data; in particular, use + AF_WRITING_SYSTEM_LATIN. + +2017-05-03 Sascha Brawer + Werner Lemberg + + [truetype] Make `IUP' gvar deltas do the same as Apple (#50832). + + When points are not touched by gvar interpolation deltas, FreeType + gave a slightly different result than Apple's CoreText. + + The OpenType working group will update the specification to document + the following behaviour: If the two points with deltas to the `left' + and `right' of the untouched point have the same coordinate, then + the inferred delta for the untouched point should be zero. + + * src/truetype/ttgxvar.c (tt_delta_interpolate): Implement new + behaviour. + +2017-05-02 Werner Lemberg + + [autofit] Remove `slight' auto-hint mode again. + + A poll on freetype-devel favoured changes directly applied to + `light'. + + * include/freetype/freetype.h (FT_LOAD_TARGET_SLIGHT, + FT_RENDER_MODE_SLIGHT): Removed. + + * src/autofit/afcjk.c (af_cjk_hints_init), src/autofit/aflatin.c + (af_latin_hints_init), src/autofit/aflatin2.c + (af_latin2_hints_init): Revert change from 2017-04-22. + + * src/autofit/afloader.c (af_loader_load_glyph) Remove references to + FT_RENDER_MODE_SLIGHT. + [AF_CONFIG_OPTION_TT_SIZE_METRICS]: Enable TrueType-like metrics + unconditionally. + + * src/base/ftadvanc.c (LOAD_ADVANCE_FAST_CHECK): Revert change from + 2017-04-22. + + * src/base/ftobjs.c (FT_Load_Glyph): Revert change from 2017-04-22. + + * src/pshinter/pshalgo.c (ps_hints_apply): Revert change from + 2017-04-22. + + * src/smooth/ftsmooth.c (ft_smooth_render): Revert change from + 2017-04-22. + + * docs/CHANGES: Updated. + +2017-04-30 Werner Lemberg + + [autofit] Fix metrics computation. + + Problem reported by Markus Trippelsdorf and + Nikolaus Waxweiler . + + * src/base/ftobjs.c (FT_Request_Size): Trigger recomputation of + auto-hinter metrics. Without this change, multiple size changing + calls for a single face fail. + +2017-04-29 Werner Lemberg + + * src/truetype/ttdriver.c (tt_size_request): Properly check `error'. + + Reported by Earnestly in + + https://lists.nongnu.org/archive/html/freetype/2017-04/msg00031.html + +2017-04-27 Werner Lemberg + + Introduce AF_CONFIG_OPTION_TT_SIZE_METRICS configuration option. + + * include/freetype/config/ftoption.h + (AF_CONFIG_OPTION_TT_SIZE_METRICS): New option, commented out by + default. + + * src/autofit/afloader.c (af_loader_load_glyph): Use + AF_CONFIG_OPTION_TT_SIZE_METRICS to guard the corresponding code. + +2017-04-26 Werner Lemberg + + * include/freetype/freetype.h (FT_Render_Mode): Fix order. + + This retains backward compatibility. + + Noted by Alexei. + +2017-04-22 Werner Lemberg + + [truetype] Do linear scaling for FT_LOAD_NO_HINTING (#50470). + + * src/truetype/ttobjs.h (TT_SizeRec): Add field `hinted_metrics' to + hold hinted metrics. + Make `metrics' a pointer so that `tt_glyph_load' can easily switch + between metrics. + + * src/truetype/ttdriver.c (tt_size_request): Updated. + (tt_glyph_load): Use top-level metrics if FT_LOAD_NO_HINTING is + used. + + * src/truetype/ttgload.c (TT_Hint_Glyph, TT_Process_Simple_Glyph, + TT_Process_Composite_Component, load_truetype_glyph, + compute_glyph_metrics, TT_Load_Glyph): Updated. + + * src/truetype/ttinterp.c (TT_Load_Context): Updated. + + * src/truetype/ttobjs.c (tt_size_reset): Updated. + + * src/truetype/ttsubpix.c (sph_set_tweaks): Updated. + +2017-04-22 Werner Lemberg + + Add new `slight' auto-hinting mode. + + This mode uses fractional advance widths and doesn't scale glyphs + horizontally, only applying vertical scaling and hinting. + + At the same time, the behaviour of the `light' auto-hinter gets + restored for backward compatibility: Both vertical and horizontal + scaling is again based on rounded metrics values (this was changed + in a commit from 2017-03-30 as a side effect). To be more precise, + the behaviour is restored for TrueType fonts only; for other font + formats like Type 1, this is a new feature of the `light' hinting + mode. + + * include/freetype/freetype.h (FT_LOAD_TARGET_SLIGHT): New macro. + (FT_RENDER_MODE_SLIGHT): New render mode. + + * include/freetype/internal/ftobjs.h (FT_Size_InternalRec): Add + `autohint_mode' and `autohint_metrics' fields. + + * src/autofit/afcjk.c (af_cjk_hints_init), src/autofit/aflatin.c + (af_latin_hints_init), src/autofit/aflatin2 (af_latin2_hints_init): + Updated. + + * src/autofit/afloader.c (af_loader_embolden_glyph_in_slot): Use + `autohint_metrics'. + (af_loader_load_glyph): s/internal/slot_internal/. + Initialize `autohint_metrics' and `autohint_mode' depending on + current auto-hint mode. + Use `autohint_metrics'. + Updated. + + * src/base/ftadvanc.c (LOAD_ADVANCE_FAST_CHECK): Updated. + + * src/base/ftobjs.c (FT_Load_Glyph): Updated. + (FT_New_Size): Allocate `internal' object. + + * src/pshinter/pshalgo.c (ps_hints_apply): Updated. + + * src/smooth/ftsmooth.c (ft_smooth_render): Updated. + +2017-04-22 Werner Lemberg + + Introduce `FT_Size_InternalRec' structure. + + We are going to extend this later on. + + * include/freetype/internal/ftobjs.h (FT_Size_InternalRec): New + structure with a single field `module_data'. + + * src/base/ftobjs.c (FT_New_Size): Allocate `internal' field of + `FT_Size' structure. + + * src/cff/cffgload.c (cff_builder_init, cff_decoder_prepare): Use + `size->internal->module_data' instead of `size->internal'. + + * src/cff/cffobjs.c (cff_size_done): Deallocate `module_data'. + (cff_size_init, cff_size_select, cff_size_request): Use + `size->internal->module_data' instead of `size->internal'. + + * src/cif/cidobjs.c (cid_size_done, cid_size_init, + cid_size_request): Use `size->internal->module_data' instead of + `size->internal'. + + * src/psaux/psobjs.c (t1_builder_ini): Use + `size->internal->module_data' instead of `size->internal'. + + * src/type1/t1objs.c (T1_Size_Done, T1_Size_Init, T1_Size_Request): + Use `size->internal->module_data' instead of `size->internal'. + +2017-04-21 Alexei Podtelezhnikov + + * src/smooth/ftsmooth.h: Remove unused guards and declaration. + +2017-04-16 Hin-Tak Leung + + Fix tracing messages. + + * src/base/ftobjs.c (FT_Face_GetCharVariantIndex, + FT_Face_GetCharVariantIsDefault, FT_Face_GetVariantsOfChar): Print + correct function name. + +2017-04-08 Sascha Brawer + Werner Lemberg + Werner Lemberg + Werner Lemberg + Werner Lemberg + + [autofit] Fix invalid character range description (#50745). + + Also reported as + + https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=1034 + + * src/autofit/afranges.c (af_glag_nonbase_uniranges): Fix typo in + recent commit. + +2017-04-07 Werner Lemberg + + [ftfuzzer] Fix clang warnings. + + * src/tools/ftfuzzer/ftfuzzer.cc (LLVMFuzzerTestOneInput): Add + casts. + +2017-04-06 Sascha Brawer + Werner Lemberg + Werner Lemberg + Werner Lemberg + Werner Lemberg + Werner Lemberg + Werner Lemberg + + [autofit] Add support for Adlam script. + + * src/autofit/afblue.dat: Add blue zone data for Adlam. + * src/autofit/afblue.c, src/autofit/afblue.h: Regenerated. + + * src/autofit/afscript.h: Add Adlam standard characters. + + * src/autofit/afranges.c, src/autofit/afstyles.h: Add Adlam data. + +2017-04-06 Sascha Brawer + + [autofit] Add support for Ol Chiki script. + + * src/autofit/afblue.dat: Add blue zone data for Ol Chiki. + * src/autofit/afblue.c, src/autofit/afblue.h: Regenerated. + + * src/autofit/afscript.h: Add Ol Chiki standard character. + + * src/autofit/afranges.c, src/autofit/afstyles.h: Add Ol Chiki data. + +2017-04-03 Werner Lemberg + + [truetype] Avoid reexecution of `fpgm' and `prep' in case of error. + + Reported as + + https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=981 + + * include/freetype/fterrdef.h (FT_Err_DEF_In_Glyf_Bytecode): New + error code. + + * src/truetype/ttinterp.c (Ins_FDEF, Ins_IDEF): Prohibit execution + of these two opcodes in `glyf' bytecode. + (TT_RunIns): Don't enforce reexecution of `fpgm' and `prep' bytecode + in case of error since function tables can no longer be modified + (due to the changes in `Ins_FDEF' and `Ins_IDEF'). This change can + enormously speed up handling of broken fonts. + +2017-04-02 Alexei Podtelezhnikov + + [autofit] Disable metrics adjustment for `FT_LOAD_TARGET_LCD'. + + * src/autofit/aflatin.c (af_latin_hints_init): Updated. + * src/autofit/aflatin2.c (af_latin2_hints_init): Ditto. + +2017-04-01 Werner Lemberg + + * src/truetype/ttgload.c: Include FT_CONFIG_CONFIG_H. + + Otherwise FT_UINT_TO_POINTER might not be defined. + + Problem reported by Alexei. + +2017-03-31 Alexei Podtelezhnikov + + [autofit] Disable stem adjustment for `FT_LOAD_TARGET_LCD'. + + * include/freetype/freetype.h (FT_LOAD_TARGET_LCD): Document it. + * src/autofit/afcjk.c (af_cjk_hints_init): Updated. + * src/autofit/aflatin.c (af_latin_hints_init): Ditto. + * src/autofit/aflatin2.c (af_latin2_hints_init): Ditto. + +2017-03-31 Werner Lemberg + + * src/cff/cffload.c (cff_font_load): Improve fix from 2017-01-04. + + Allow CFFs containing a single font to have an empty font name. + + Problem reported by 張俊芝 <418092625@qq.com> in + + https://lists.nongnu.org/archive/html/freetype-devel/2017-03/msg00074.html + +2017-03-30 Werner Lemberg + + * src/cff/cffparse.h (CFF2_DEFAULT_STACK): Set to 513 also. + + Requested by Dave Arnold. + +2017-03-30 Werner Lemberg + + [truetype] Fix HVAR and VVAR handling (#50678). + + * src/truetype/ttgxvar.c (tt_hvadvance_adjust): Handle + glyph indices larger than `mapCount' as described in the + specification. + +2017-03-30 Werner Lemberg + + [truetype] Allow linear scaling for unhinted rendering (#50470). + + * src/truetype/ttdriver.c (tt_size_request): Revert change from + 2011-07-16; the intended metrics fix seems now to be implemented in + a different way, making the patch unnecessary. Note that this + change was usually patched out by all major GNU/Linux distributions + due to heavy side effects. + + * src/truetype/ttgload.c (compute_glyph_metrics, TT_Load_Glyph): + Refer to the metrics of the `TT_Size' object. + +2017-03-29 Werner Lemberg + + [truetype] Fix thinko related to PS name of default named instance. + + * src/truetype/ttgxvar.c (TT_Get_MM_Var): `strid' and `psid' are + name ID values, not indices into the array of name entries. + +2017-03-27 Werner Lemberg + + [cid, truetype] Don't use `index' as a variable name. + + At least on FreeBSD there is a global declaration of `index' in file + `/usr/include/strings.h'. + + * src/cff/cf2intrp.c, src/truetype/ttgload.c: s/index/idx/ where + appropriate. + +2017-03-27 Wojciech Mamrak + + [sfnt] Minor improvement for handling kern tables. + + * src/sfnt/ttkern.c (tt_face_load_kern): Don't check for + cross-stream kerning tables since we reject format 2 tables later + on anyways. + Modify code for limit test... + (tt_face_get_kerning): ... to avoid a limit test here. + +2017-03-27 Werner Lemberg + + [pcf] Fix compiler warnings. + + Reported by Alexander Hedges . + + * src/pcf/pcfdrivr.c (pcf_property_set, pcf_property_get): Tag + `property_name' with `FT_UNUSED' where necessary. + +2017-03-26 Werner Lemberg + + * src/psaux/psobjs.c (t1_builder_close_contour): Add safety guard. + + Reported as + + https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=941 + +2017-03-23 Werner Lemberg + + [psaux] Better protect `flex' handling. + + Reported as + + https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=935 + + * src/psaux/t1decode.c (t1_decoder_parse_charstrings) + : Since there is not a single flex operator but a + series of subroutine calls, malformed fonts can call arbitrary other + operators after the start of a flex, possibly adding points. For + this reason we have to check the available number of points before + inserting a point. + +2017-03-23 Werner Lemberg + + [sfnt] Fix check for default named instance. + + * src/sfnt/sfobjs.c (sfnt_init_face): A `fixed' number needs four + bytes, not two... + +2017-03-23 Werner Lemberg + + Make MM fonts work (again). + + * src/base/ftmm.c (FT_Set_Var_Design_Coordinates, + FT_Set_MM_Blend_Coordinates, FT_Set_Var_Blend_Coordinates): Ignore + return value of `ft_face_get_mvar_service'; instead, check whether a + service is actually returned. + +2017-03-20 Werner Lemberg + + [truetype] Some variable renamings. + + Too much local variables holding different structures were called + `metrics'. + + * src/truetype/ttdriver.c (tt_size_select): s/metrics/size_metrics/. + + * src/truetype/ttgload.c (tt_get_metrics_incr_overrides, + compute_glyph_metrics): s/metrics/incr_metrics/. + (load_sbit_image): s/metrics/sbit_metrics/. + + * src/truetype/ttobjs.c (tt_size_run_fpgm): s/metrics/size_metrics/. + (tt_size_init_bytecode): s/metrics/tt_metrics/. + (tt_size_reset): s/metrics/size_metrics/. + +2017-03-20 Werner Lemberg + + [sfnt] Don't add instances to non-variation fonts. + + * src/sfnt/sfobjs.c (sfnt_init_face): Fix it. + +2017-03-20 Werner Lemberg + + * src/cff/cffgload.c (cff_builder_init): Add safety guard (#50578). + +2017-03-18 Werner Lemberg + + Introduce FT_UINT_TO_POINTER macro (#50560). + + We have to make a separate case for Windows 64's LLP64 data model. + + * builds/unix/ftconfig.in, builds/vms/ftconfig.h, + include/freetype/config/ftconfig.h (FT_UINT_TO_POINTER): New macro. + + * src/truetype/ttgload.c (load_truetype_glyph): Use it. + +2017-03-18 Werner Lemberg + + * src/truetype/ttinterp.c (TT_RunIns): Adjust loop counter (#50573). + + The problematic font that exceeds the old limit is Lato-Regular, + version 2.007, containing bytecode generated by a buggy version of + ttfautohint. + +2017-03-18 Werner Lemberg + + [truetype] Another limitation for bytecode loop count maximum. + + Reported as + + https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=900 + + * src/truetype/ttinterp.c (TT_RunIns): Limit `loopcall_counter_max' + by number of glyphs also. + +2017-03-18 Werner Lemberg + + [ftfuzzer] Minor improvement. + + * src/tools/ftfuzzer/ftfuzzer.cc: Don't set intermediate axis if + bitmap strikes are active. + +2017-03-18 Werner Lemberg + + Improve `make multi'. + + * src/autofit/aflatin2.c: Guard file with FT_OPTION_AUTOFIT2. + + * src/base/ftmac.c: Guard more parts of the file with FT_MACINTOSH. + + * src/psaux/afmparse.c: Guard file with T1_CONFIG_OPTION_NO_AFM. + + * src/sfnt/pngshim.c: Guard file with + TT_CONFIG_OPTION_EMBEDDED_BITMAPS also. + + * src/sfnt/ttbdf.c: Avoid empty source file. + * src/sfnt/ttpost.c: Guard file with + TT_CONFIG_OPTION_POSTSCRIPT_NAMES. + * src/sfnt/ttsbit.c: Guard file with + TT_CONFIG_OPTION_EMBEDDED_BITMAPS. + + * src/truetype/ttgxvar.c, src/truetype/ttinterp.c: Avoid empty + source file. + + * src/truetype/ttsubpix.c: Guard file with + TT_USE_BYTECODE_INTERPRETER also. + + * src/type1/t1afm.c: Guard file with T1_CONFIG_OPTION_NO_AFM. + + * src/autofit/autofit.c, src/base/ftbase.c, src/cache/ftcache.c, + src/cff/cff.c, src/cid/type1cid.c, src/gxvalid/gxvalid.c, + src/pcf/pcf.c, src/pfr/pfr.c, src/psaux/psaux.c, + src/pshinter/pshinter.c, src/psnames/psnames.c, src/raster/raster.c, + src/sfnt/sfnt.c, src/smooth/smooth.c, src/truetype/truetype.c, + src/type1/type1.c, src/type42/type42.c: Remove conditionals; sort + entries. + +2017-03-17 Werner Lemberg + + Fixes for conditional compilation. + + * src/autofit/afcjk.c, src/autofit/afindic.c: Include `afcjk.h' + earlier. + + * src/sfnt/sfobjs.c (sfnt_init_face): Put `memory' variable into + TT_CONFIG_OPTION_GX_VAR_SUPPORT block. + (sfnt_done_face): Protect some code with + TT_CONFIG_OPTION_GX_VAR_SUPPORT. + + * src/sfnt/ttsbit.c (tt_face_load_sbix_image): Remove compiler + warning. + + * src/truetype/ttgload.c (TT_Load_Simple_Glyph): Put `tmp' variable + into TT_USE_BYTECODE_INTERPRETER block. + + (tt_loader_init): Put `error' variable into + TT_USE_BYTECODE_INTERPRETER block. + +2017-03-17 Werner Lemberg + + Fix preprocessor warning. + + * devel/ftoption.h, include/freetype/config/ftoption.h: Test whether + TT_CONFIG_OPTION_SUBPIXEL_HINTING is defined before checking its + value. + +2017-03-17 Werner Lemberg + + `make multi' fixes; compiler warnings. + + * src/base/ftsnames.c: Include FT_INTERNAL_DEBUG_H. + + * src/cff/cffobjs.c [TT_CONFIG_OPTION_GX_VAR_SUPPORT]: Include + FT_MULTIPLE_MASTERS_H and FT_SERVICE_MULTIPLE_MASTERS_H. + + * src/sfnt/sfdriver.c [TT_CONFIG_OPTION_GX_VAR_SUPPORT]: Include + FT_MULTIPLE_MASTERS_H and FT_SERVICE_MULTIPLE_MASTERS_H. + (get_win_string, get_apple_string): Initialize `result'. + +2017-03-17 Dave Arnold + + [cff] Fix potential bugs in default NDV for CFF2. + + * src/cff/cffload.c (cff_blend_build_vector): Explicitly build blend + vector when `lenNDV' is zero; don't rely on zero-init. + Save `lenNDV' as part of cache key even when `lenNDV' is zero. + +2017-03-17 Dave Arnold + + [cff] Fix CFF2 stack allocation. + + * src/cff/cffparse.c (cff_parser_init) add 1 for operator. + +2017-03-16 Werner Lemberg + + * src/truetype/ttgxvar.c (tt_done_blend): Free `vvar_table'. + + Reported as + + https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=883 + +2017-03-15 Werner Lemberg + + Remove clang compiler warnings (#50548). + + * include/freetype/internal/tttypes.h (TT_FaceRec): Make + `var_postscript_prefix_len' unsigned. + + * src/autofit/afwarp.c (af_warper_compute_line_best): Remove + redundant assignment. + + * src/cff/cffload.c (cff_subfont_load): Add casts. + + * src/cff/cffparse.c (cff_parse_blend): Remove redundant assignment. + + * src/sfnt/sfdriver.c (fmix32, murmur_hash_3_128): Add `static' + keyword. + Add casts. + (fixed2float): Add cast. + (sfnt_get_var_ps_name): Make `p' always initialized. + Add casts. + + * src/truetype/ttgxvar.c (TT_Get_MM_Var): Add casts. + +2017-03-15 Werner Lemberg + + [ftfuzzer] Limit number of tested faces and instances. + + This is inspired by the discussion in and analysis of + + https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=859 + + * src/tools/ftfuzzer/ftfuzzer.cc (LLVMFuzzerTestOneInput): Use only + up to 20 face indices. + Use only up to 20 instance indices. + +2017-03-15 Werner Lemberg + + * src/tools/ftfuzzer/ftfuzzer.cc: Improve readability; formatting. + +2017-03-14 Werner Lemberg + + [sfnt] Implement PS names for font instances [3/3]. + + Everything is guarded with TT_CONFIG_OPTION_GX_VAR_SUPPORT. + + * include/freetype/internal/tttypes.h (TT_FaceRec): New fields + `var_postscript_prefix' and `var_postscript_prefix_len'. + + * src/sfnt/sfdriver.c: Include FT_TRUETYPE_IDS_H. + (sfnt_is_alphanumeric): New wrapperfunction for `ft_isalnum'. + (get_win_string, get_apple_string): Remove `const' from return + value. + (MAX_VALUE_DESCRIPTOR_LEN, MAX_PS_NAME_LEN): New macros. + (hexdigits): New array. + (sfnt_get_var_ps_name): New function, implementing Adobe TechNote + 5902 to construct a PS name for a variation font instance. + (sfnt_get_ps_name): Call `sfnt_get_var_ps_name' for font instances. + + * src/sfnt/sfobjs.c (sfnt_done_face): Updated. + + * src/truetype/ttgxvar.c (tt_set_mm_blend): Reset + `face->postscript_name' to trigger recalculation for new instance + parameters. + +2017-03-14 Werner Lemberg + + [sfnt] Implement PS names for font instances [2/3]. + + * src/sfnt/sfdriver.c (fix2float) [TT_CONFIG_OPTION_GX_VAR_SUPPORT]: + New function to find the shortest representation of a 16.16 + fractional number. + +2017-03-14 Werner Lemberg + + [sfnt] Implement PS names for font instances [1/3]. + + Add 128bit MurmurHash 3 function. + + Everything is guarded with TT_CONFIG_OPTION_GX_VAR_SUPPORT. + + * src/sfnt/sfdriver.c (ROTL32): New macro. + (fmix32, murmur_hash_3_128): New functions. + +2017-03-13 Werner Lemberg + + [truetype] Ignore invalid MVAR tags. + + Reported as + + https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=838 + + * src/truetype/ttgxvar.c (ft_var_load_mvar): Ignore value and emit + warning for invalid tags. + (tt_apply_mvar): Ignore invalid tags. + +2017-03-12 Werner Lemberg + + [truetype] Store and use design coordinates also. + + * include/freetype/internal/services/svmm.h (FT_Get_Var_Blend_Func): + Add `normalizedcoords' argument. + + * src/truetype/ttgxvar.h (GX_BlendRec): Add `coords' field to store + the design coordinates of the current instance. + Updated. + + * src/truetype/ttgxvar.c (TT_Set_MM_Blend): Move functionality to... + (tt_set_mm_blend): ... New function. + Convert data in `normalizedcoords' array to `coords' array on + demand. + (TT_Set_Var_Design): Store argument data in `coords' array. + (TT_Get_Var_Design): Get data from `coords' array. + (tt_get_var_blend): Updated. + (tt_done_blend): Updated. + + * src/cff/cffload.c, src/cff/cffload.h (cff_get_var_blend): Updated. + + * src/cff/cf2ft.c (cf2_getNormalizedVector): Updated. + + * src/cff/cffobjs.c (cff_face_init): Updated. + +2017-03-12 Werner Lemberg + + src/truetype/ttgxvar.[ch]: s/avar_checked/avar_loaded/. + +2017-03-08 Werner Lemberg + + [sfnt] Another fix for buggy variation fonts. + + Reported as + + https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=759 + + * src/sfnt/sfobjs.c (sfnt_init_face): While setting number of + instances to zero for `CFF' fonts table, ensure that there is no + `CFF2' present also (which gets priority). + +2017-03-07 Werner Lemberg + + [sfnt] Improve handling for buggy variation fonts. + + Reported as + + https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=738 + + * src/sfnt/sfobjs.c (sfnt_init_face): While setting number of + instances to zero for `CFF' fonts table, ensure that there is no + `glyf' table present also (which gets priority). + +2017-03-06 Werner Lemberg + + [sfnt, truetype] Always provide default instance. + + As documented in the OpenType specification, an entry for the + default instance may be omitted in the named instance table. In + particular this means that even if there is no named instance table + in the font we actually do have a named instance, namely the default + instance. + + For consistency, we always want the default instance in our list of + named instances. If it is missing, we try to synthesize it. + + * src/sfnt/sfobjs.c (sfnt_init_face): Check whether the default + instance is in the table of named instances. Otherwise adjust + number of instances. + + * src/truetype/ttgxvar.c: Include FT_TRUETYPE_IDS_H. + (TT_Get_MM_Var): Use `face->root.style_flags' as the number of named + instances. + Sythesize a named instance entry if necessary. + (tt_done_blend): Free `normalized_stylecoords'. + +2017-03-05 Werner Lemberg + + [sfnt] Remove redundant code. + + * src/sfnt/sfobjs.c (sfnt_init_face): Remove second test for + `num_instances', which will always succeed. + +2017-03-04 Werner Lemberg + + [sfnt] Add `get_name_id' service. + + * include/freetype/internal/sfnt.h (TT_Get_Name_ID_Func): New + typedef. + (SFNT_Interface): Add `get_name_id' field. + (FT_DEFINE_SFNT_INTERFACE): Updated. + + * src/sfnt/sfdriver.c (search_name_id): Rename to... + (sfnt_get_name_id): ... this. + (sfnt_get_ps_name, sfnt_interface): Updated. + +2017-03-04 Werner Lemberg + + [truetype] Make `TT_Set_MM_Blend' set named instance index. + + * src/truetype/ttgxvar.h (GX_Blend): New array + `normalized_stylecoords'. + + * src/truetype/ttgxvar.c (TT_Get_MM_Var): Allocate and fill + `normalized_stylecoords'. + (TT_Set_MM_Blend): Check instance tuple and adjust `face_index' + accordingly. + +2017-03-02 Werner Lemberg + + [truetype] Split off designer/normalized conversion routines. + + * src/truetype/ttgxvar.c (TT_Set_Var_Design): Split off conversion + code designer->normalized coordinates to... + (ft_var_to_normalized): ... New function. + (TT_Get_Var_Design): Split off conversion code normalized->designer + coordinates to... + (ft_var_to_design): ... New function. + +2017-02-28 Werner Lemberg + + [sfnt] Further generalize `sfnt_get_ps_name'; report invalid data. + + * src/sfnt/sfdriver.c (sfnt_ps_map): New array. + (sfnt_is_postscript): New function. + (char_type_func): New typedef. + (get_win_string, get_apple_string): Add argument to specify + character checking function. + Add argument whether argument checking failures should be reported. + Update callers. + (search_name_id): Fix return value. + +2017-02-23 Werner Lemberg + + [sfnt] Split off another bit of `sfnt_get_ps_name'. + + * src/sfnt/sfdriver.c (sfnt_get_ps_name): Split off some + functionality into... + (search_name_id): ... New function. + +2017-02-23 Werner Lemberg + + [sfnt] Modularize `sfnt_get_ps_name'. + + * src/sfnt/sfdriver.c (sfnt_get_ps_name): Split off some + functionality into... + (IS_WIN, IS_APPLE): ... New macros. + (get_win_string, get_apple_string): ... New functions. + +2017-02-23 Werner Lemberg + + [truetype] Minor improvement. + + * src/truetype/ttgload.c (TT_Process_Simple_Glyph, + load_truetype_glyph): Remove unnecessary tests. + +2017-02-23 Werner Lemberg + + * include/freetype/internal/tttypes.h (TT_Face): s/isCFF2/is_cff2/. + + For orthogonality with other structure field names. + + Update all users. + +2017-02-22 Alexei Podtelezhnikov + + * src/smooth/ftgrays.c (gray_hline): Improve code. + +2017-02-20 Dominik Röttsches + + Fix some `ttnameid.h' entries (#50313). + + * include/freetype/ttnameid.h: + s/TT_MS_LANGID_SPANISH_INTERNATIONAL_SORT/TT_MS_LANGID_SPANISH_SPAIN_INTERNATIONAL_SORT/, + s/TT_MS_LANGID_MONGOLIAN_MONGOLIA_MONGOLIA/TT_MS_LANGID_MONGOLIAN_MONGOLIA_MONGOLIAN/. + +2017-02-20 Werner Lemberg + + [cff] Finish support for `random' operator. + + * src/cff/cfftypes.h (CFF_SubFontRec): Add `random' field. + + * src/cff/cffobjs.c: Updated. + (cff_driver_init): Initialize random seed value. + + * src/cff/cffload.c (cff_random): New function. + (cff_subfont_load): Add `face' argument. + Update all callers. + Initialize random number generator with a proper seed value. + (cff_font_load): Add `face' argument. + Update all callers. + + * src/cff/cffload.h: Updated. + + * src/cff/cf2intrp.c (CF2_FIXME): Removed. + (cf2_interpT2CharString) : Implement opcode. + + * src/cff/cffgload.c (cff_decoder_parse_charstrings): Don't + initialize random seed value. + : Use new random seed framework. + +2017-02-20 Werner Lemberg + + [cff] Sanitize `initialRandomSeed'. + + * src/cff/cffload.c (cff_load_private_dict): Make + `initial_random_seed' value always positive. + +2017-02-20 Werner Lemberg + + [cff] Introduce `random-seed' property (2/2). + + * src/base/ftobjs.c: Include `FT_CFF_DRIVER_H'. + (open_face): Initialize `face->internal->random_seed'. + (FT_Face_Properties): Handle `FT_PARAM_TAG_RANDOM_SEED'. + + * src/cff/cffdrivr.c (cff_property_set): Handle `random-seed' + property. + +2017-02-20 Werner Lemberg + + [cff] Introduce `random-seed' property (1/2). + + We need this for support of the `random' operator. + + * include/freetype/ftcffdrv.h (FT_PARAM_TAG_RANDOM_SEED): New macro. + + * include/freetype/internal/ftobjs.h (FT_Face_InternalRec): New + field `random_seed'. + + * src/cff/cffobjs.h (CFF_DriverRec): New field `random_seed'. + +2017-02-17 Werner Lemberg + + Remove clang warnings. + + * src/autofit/aflatin.c (af_latin_sort_blue): Add missing `static' + keyword. + + * src/base/ftmm.c (FT_Set_Var_Design_Coordinates, + FT_Set_MM_Blend_Coordinates, FT_Set_Var_Blend_Coordinates): + Initialize some variables. + +2017-02-16 Nikolaus Waxweiler + Werner Lemberg + + Add face property for stem darkening. + + * include/freetype/ftautoh.h (FT_PARAM_TAG_STEM_DARKENING): New + macro. + + * include/freetype/internal/ftobjs.h (FT_Face_InternalRec): Add + `no_stem_darkening' field. + + * src/autofit/afloader.c (af_loader_load_glyph), + src/autofit/afmodule.c (af_property_set): Updated. + + * src/base/ftobjs.c: Include FT_AUTOHINTER_H. + (ft_open_face_internal): Updated. + (FT_Face_Properties): Handle FT_PARAM_TAG_STEM_DARKENING. + + * src/cff/cf2ft.c (cf2_decoder_parse_charstrings): Updated. + + * src/cff/cffdrivr.c (cff_property_set): Updated. + +2017-02-16 Nikolaus Waxweiler + Werner Lemberg + + Add face property for LCD filter weights. + + * include/freetype/ftlcdfil.h (FT_PARAM_TAG_LCD_FILTER_WEIGHTS, + FT_LCD_FILTER_FIVE_TAPS): New macros. + (FT_LcdFiveTapFilter): New typedef. + + * include/freetype/ftobjs.h (FT_Face_InternalRec) + [FT_CONFIG_OPTION_SUBPIXEL_RENDERING]: Add `lcd_weights' field. + (FT_Bitmap_LcdFilterFunc): Change third argument to weights array. + (ft_lcd_filter_fir): New prototype. + (FT_LibraryRec): Updated. + + * src/base/ftlcdfil.c (_ft_lcd_filter_fir): Renamed to... + (ft_lcd_filter_fir): ... this base function. + Updated. + (_ft_lcd_filter_legacy): Updated. + (FT_Library_SetLcdFilterWeights, FT_Library_SetLcdFilter): Updated. + + * src/base/ftobjs.c (ft_open_face_internal): Updated. + (FT_Face_Properties): Handle FT_PARAM_TAG_LCD_FILTER_WEIGHTS. + + * src/smooth/ftsmooth.c (ft_smooth_render_generic) + [FT_CONFIG_OPTION_SUBPIXEL_RENDERING]: Handle LCD weights from + `FT_Face_Internal'. + +2017-02-14 Nikolaus Waxweiler + Werner Lemberg + + Add new function `FT_Face_Properties'. + + This commit provides the framework, to be filled with something + useful in the next commits. + + * include/freetype/freetype.h (FT_Face_Properties): Declare. + + * src/base/ftobjs.c (FT_Face_Properties): New function. + +2017-02-13 Werner Lemberg + + [autofit] Prevent overlapping blue zones. + + Problem reported as + + https://github.com/google/fonts/issues/632 + + The font in question (Nunito) has values 705 and 713 for the + reference and overshoot values, respectively, of the first blue + zone. Blue zone 2, however, has value 710 for both the reference + and overshoot. At 12ppem, reference and overshoot of blue zone 0 + becomes 8px, while blue zone 2 becomes 9px. + + A peculiarity of this font is that the tops of isolated vertical + stems like `N' have a slight overshoot also. The auto-hinter tries + to find the nearest blue zone using the *original* coordinates. For + vertical stems, this is value 713. For normal horizontal tops like + in character `E', this is value 710. Since value 713 is mapped to + 8px but value 710 to 9px, `N' and similar characters are one pixel + higher than `E', which looks very bad. + + This commit sanitizes blue zones to avoid such a behaviour. + + * src/autofit/aflatin.c (af_latin_sort_blue): New function. + (af_latin_metrics_init_blues): Sort blue values and remove overlaps. + +2017-02-12 Alexei Podtelezhnikov + + * src/smooth/ftgrays.c (gray_sweep): Improve code. + +2017-02-06 Werner Lemberg + + [truetype] Implement `VVAR' table support. + + * src/truetype/ttgxvar.h (GX_HVarTable): Renamed to... + (GX_HVVarTable): ...This. + (GX_Blend): Add fields for `VVAR' table handling. + Other minor updates. + + * src/truetype/ttgxvar.c (ft_var_load_hvar): Renamed to... + (ft_var_load_hvvar): ...This. + Handle VVAR loading also (controlled by an additional parameter). + (tt_hadvance_adjust): Renamed to... + (tt_hvadvance_adjust): ...This. + Handle application of advance height also (controlled by an + additional parameter). + (tt_hadvance_adjust, tt_vadvance_adjust): Wrappers for + `tt_hvadvance_adjust'. + + * src/truetype/ttdriver.c (tt_service_metrics_variations): Updated. + +2017-02-05 Werner Lemberg + + [autofit] Use better blue zone characters for lowercase latin. + + The number of lowercase characters for computing the top flat blue + zone value was too small (in most cases only `x' and `z'). If one + of the two characters has a large serif, say, it can happen that + FreeType must select between two different values, having a 50% + chance to use the wrong one. As a result, rendering at larger PPEM + values could yield uneven lowercase glyph heights. + + Problem reported by Christoph Koeberlin . + + * src/autofit/afblue.dat (AF_BLUE_STRING_LATIN_SMALL): Replaced + with... + (AF_BLUE_STRING_LATIN_SMALL_TOP, AF_BLUE_STRING_LATIN_SMALL_BOTTOM): + ... New, extended sets. + (AF_BLUE_STRINGSET_LATN): Updated. + + * src/autofit/afblue.c, scr/autofit/afblue.h: Regenerated. + +2017-02-04 Werner Lemberg + + Make `freetype-config' a wrapper of `pkg-config' if possible. + + Based on ideas taken from + + http://pkgs.fedoraproject.org/cgit/rpms/freetype.git/tree/freetype-multilib.patch + http://pkgs.fedoraproject.org/cgit/rpms/freetype.git/tree/freetype-2.5.3-freetype-config-prefix.patch + + * builds/unix/freetype-config.in: Rewritten. Use `pkg-config' to + set output variables if program is available. + + * docs/CHANGES, docs/freetype-config.1: Updated. + +2017-02-04 Werner Lemberg + + * builds/unix/unix-def.in (freetype-config): Fix permissions. + +2017-02-03 Werner Lemberg + + * src/autofit/afglobal.c (af_face_globals_free): Erase useless code. + +2017-02-03 Werner Lemberg + + * include/freetype/ftgasp.h (FT_GASP_SYMMETRIC_GRIDFIT): Fix value. + + Reported by Behdad. + +2017-02-02 Werner Lemberg + + [truetype] Fix MVAR post-action handling. + + Reported as + + https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=509 + + * src/truetype/ttobjs.c (tt_size_reset): Do nothing for CFF2. This + is important to make `tt_size_reset_iterator' (called in + `tt_apply_mvar') always work. + +2017-02-02 Werner Lemberg + + Make compilation with FT_CONFIG_OPTION_PIC work again. + + All code committed here is guarded with `FT_CONFIG_OPTION_PIC'. + + * include/freetype/internal/services/svmetric.h + (FT_DEFINE_SERVICE_METRICSVARIATIONSREC): Remove trailing semicolon. + + * src/autofit/aflatin.c (af_latin_hints_compute_edges, + af_latin_hint_edges): Provide `globals' variable. + + * src/autofit/afloader.c (af_loader_load_glyph): Remove shadowing + variable. + + * src/autofit/afmodule.c (AF_SCRIPT_CLASSES_GET, + AF_STYLE_CLASSES_GET): Redefine. + + * src/autofit/aftypes.h (AF_DEFINE_WRITING_SYSTEM_CLASS): Fix typo. + + * src/cff/cffparse.c (CFF_FIELD_BLEND): Provide it. + + * src/cff/cffpic.h (CffModulePIC): Fix typo. + +2017-01-31 Alexei Podtelezhnikov + + * src/smooth/ftgrays.c (gray_render_scanline): Improve code. + +2017-01-31 Werner Lemberg + + [cff] Provide metrics variation service interface (#50196). + + Only now I've got an OTF with an HVAR table for testing... + + The code in `ftmm.c' uses `FT_FACE_LOOKUP_SERVICE' to get the + metrics variations interface. However, this didn't work with + `FT_FACE_FIND_GLOBAL_SERVICE' used in `sfnt_init_face'. + + * src/cff/cffdrivr.c: Include FT_SERVICE_METRICS_VARIATIONS_H. + (cff_hadvance_adjust, cff_metrics_adjust): Wrapper functions for + metric service functions from the `truetype' module. + (cff_service_metrics_variations): New service. + (cff_services): Updated. + + * src/cff/cffpic.h (CFF_SERVICE_METRICS_VAR_GET): New macro. + [FT_CONFIG_OPTION_PIC]: Synchronize code. + + * src/sfnt/sfobjs.c (sfnt_init_face): Replace call to + FT_FACE_FIND_GLOBAL_SERVICE with `ft_module_get_service' to always + load the service from the `truetype' module. + +2017-01-31 Werner Lemberg + + Add framework to support services with 9 functions. + + * include/freetype/internal/ftserv.h (FT_DEFINE_SERVICEDESCREC9): + New macro. + +2017-01-31 Werner Lemberg + + [base] Fix error handing in MM functions. + + * src/base/ftmm.c (FT_Set_Var_Design_Coordinates, + FT_Set_MM_Blend_Coordinates, FT_Set_Var_Blend_Coordinates): + Implement it. + +2017-01-31 Werner Lemberg + + [truetype] Fix sanity check for `gvar' table (#50184). + + * src/truetype/ttgxvar.c (ft_var_load_gvar): There might be missing + variation data for some glyphs. + +2017-01-31 Werner Lemberg + + [autofit] Avoid uninitialized jumps (#50191). + + * src/autofit/afcjk.c (af_cjk_metrics_check_digits), + src/autofit/aflatin.c (af_latin_metrics_check_digits): Initialize + `advance'. + +2017-01-27 Werner Lemberg + + s/GB2312/PRC/. + + * include/freetype/freetype.h (FT_ENCODING_PRC): New enum value. + (FT_ENCODING_GB2312): Deprecated. + + * include/freetype/ttnameid.h (TT_MS_ID_PRC): New macro. + (TT_MS_ID_GB2312): Deprecated. + + * src/sfnt/sfobjs.c (sfnt_find_encoding): Updated. + + * docs/CHANGES: Updated. + +2017-01-26 Werner Lemberg + + [base] Add `FT_Get_Sfnt_LangTag' function. + + * include/freetype/ftsnames.h (FT_SfntLangTag): New structure. + (FT_Get_Sfnt_LangTag): New declaration. + + * src/base/ftsnames.c (FT_Get_Sfnt_LangTag): New function. + + * docs/CHANGES: Updated. + +2017-01-26 Werner Lemberg + + [sfnt] Support `name' table format 1. + + * include/freetype/internal/tttypes.h (TT_LangTagRec): New + structure. + (TT_NameTableRec): Add fields `numLangTagRecords' and `langTags'. + + * src/sfnt/ttload.c (tt_face_load_name): Add support for language + tags. + Reduce array size of name strings in case of invalid entries. + (tt_face_free_name): Updated. + + * docs/CHANGES: Updated. + +2017-01-25 Werner Lemberg + + [sfnt] s/TT_NameEntry/TT_Name/. + + * include/freetype/internal/tttypes.h (TT_NameEntryRec): Renamed + to... + (TT_NameRec): This. + (TT_NameTableRec): Updated. + + * src/base/ftsnames.c (FT_Get_Sfnt_Name): Updated. + + * src/sfnt/sfdriver.c (sfnt_get_ps_name): Updated. + + * src/sfnt/sfobjs.c (tt_name_entry_ascii_from_utf16, + tt_name_entry_ascii_from_other): Renamed to... + (tt_name_ascii_from_utf16, tt_name_entry_ascii_from_other): This, + respectively. + (TT_NameEntry_ConvertFunc): Renamed to... + (TT_Name_ConvertFunc): This. + (tt_face_get_name): Updated. + + * src/sfnt/ttload.c (tt_face_load_name, tt_face_free_name): + Updated. + +2017-01-24 Werner Lemberg + + [sfnt] Fix Postscript name service for symbol fonts. + + * src/sfnt/sfdriver.c (sfnt_get_ps_name): Accept PID/EID=3/0 + entries also. + +2017-01-24 Werner Lemberg + + [truetype] For OpenType 1.7: s/preferred/typographic/ (sub)family. + + * include/freetype/ftsnames.h + (FT_PARAM_TAG_IGNORE_TYPOGRAPHIC_FAMILY, + FT_PARAM_TAG_IGNORE_TYPOGRAPHIC_SUBFAMILY): New macros. + (FT_PARAM_TAG_IGNORE_PREFERRED_FAMILY, + FT_PARAM_TAG_IGNORE_PREFERRED_SUBFAMILY): Deprecated. + + * include/freetype/ttnameid.h (TT_NAME_ID_TYPOGRAPHIC_FAMILY, + TT_NAME_ID_TYPOGRAPHIC_SUBFAMILY): New macros. + (TT_NAME_ID_PREFERRED_FAMILY, TT_NAME_ID_PREFERRED_SUBFAMILY): + Deprecated. + + * src/sfnt/sfobjs.c (sfnt_load_face): Updated. + + * docs/CHANGES: Updated. + +2017-01-23 Werner Lemberg + + [base] Add `FT_Set_Default_Properties' (#49187). + + * include/freetype/ftmodapi.h: Add declaration. + + * src/base/ftinit.c (ft_set_default_properties): Renamed to... + (FT_Set_Default_Properties): ... this. + (FT_Init_FreeType): Updated. + + * docs/CHANGES: Updated. + +2017-01-23 Werner Lemberg + + [truetype] Minor updates for OpenType 1.8.1. + + * src/truetype/ttgxvar.h (GX_MVarTable): `axisCount' has been + removed from the specification; it is now reserved. + + * src/truetype/ttgxvar.c (ft_var_load_mvar): Updated. + (GX_FVar_Head): Remove `countSizePairs'; the corresponding data + field in the `MVAR' table is now reserved. + (fvar_fields): Updated. + +2017-01-23 Werner Lemberg + + [truetype] Avoid segfault for invalid variation data. + + * src/truetype/ttgxvar.c (ft_var_load_item_variation_store): Assure + `itemCount' is not zero. + + Reported as + + https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=441 + +2017-01-20 Werner Lemberg + + * src/truetype/ttinterp.c (TT_RunIns): Adjust loop detector limits. + +2017-01-17 Werner Lemberg + + * include/freetype/ttnameid.h: Updated to OpenType 1.8.1. + + (TT_APPLE_ID_FULL_UNICODE): New macro. + + (TT_MS_LANGID_BOSNIAN_BOSNIA_HERZ_CYRILLIC, + TT_MS_LANGID_UPPER_SORBIAN_GERMANY, + TT_MS_LANGID_LOWER_SORBIAN_GERMANY, TT_MS_LANGID_IRISH_IRELAND, + TT_MS_LANGID_INUKTITUT_CANADA_LATIN, TT_MS_LANGID_BASHKIR_RUSSIA, + TT_MS_LANGID_LUXEMBOURGISH_LUXEMBOURG, + TT_MS_LANGID_GREENLANDIC_GREENLAND, TT_MS_LANGID_MAPUDUNGUN_CHILE, + TT_MS_LANGID_MOHAWK_MOHAWK, TT_MS_LANGID_BRETON_FRANCE, + TT_MS_LANGID_OCCITAN_FRANCE, TT_MS_LANGID_CORSICAN_FRANCE, + TT_MS_LANGID_ALSATIAN_FRANCE, TT_MS_LANGID_YAKUT_RUSSIA, + TT_MS_LANGID_KICHE_GUATEMALA, TT_MS_LANGID_KINYARWANDA_RWANDA, + TT_MS_LANGID_WOLOF_SENEGAL, TT_MS_LANGID_DARI_AFGHANISTAN): New + macros. + + (TT_MS_LANGID_SERBIAN_BOSNIA_HERZ_CYRILLIC): Fix value. + + (TT_MS_LANGID_GERMAN_LIECHTENSTEIN, TT_MS_LANGID_CATALAN_CATALAN, + TT_MS_LANGID_CHINESE_MACAO, TT_MS_LANGID_SPANISH_SPAIN_MODERN_SORT, + TT_MS_LANGID_KOREAN_KOREA, TT_MS_LANGID_ROMANSH_SWITZERLAND, + TT_MS_LANGID_SLOVENIAN_SLOVENIA, TT_MS_LANGID_BASQUE_BASQUE, + TT_MS_LANGID_SETSWANA_SOUTH_AFRICA, + TT_MS_LANGID_ISIXHOSA_SOUTH_AFRICA, + TT_MS_LANGID_ISIZULU_SOUTH_AFRICA, TT_MS_LANGID_KAZAKH_KAZAKHSTAN, + TT_MS_LANGID_KYRGYZ_KYRGYZSTAN, TT_MS_LANGID_KISWAHILI_KENYA, + TT_MS_LANGID_TATAR_RUSSIA, TT_MS_LANGID_ODIA_INDIA, + TT_MS_LANGID_MONGOLIAN_PRC, TT_MS_LANGID_TIBETAN_PRC, + TT_MS_LANGID_WELSH_UNITED_KINGDOM, TT_MS_LANGID_GALICIAN_GALICIAN, + TT_MS_LANGID_SINHALA_SRI_LANKA, TT_MS_LANGID_TAMAZIGHT_ALGERIA, + TT_MS_LANGID_SESOTHO_SA_LEBOA_SOUTH_AFRICA, TT_MS_LANGID_YI_PRC, + TT_MS_LANGID_UIGHUR_PRC): New aliases. + + Remove commented out code. + + (TT_NAME_ID_LIGHT_BACKGROUND, TT_NAME_ID_DARK_BACKGROUND, + TT_NAME_ID_VARIATIONS_PREFIX): New macros. + + (HAVE_LIMIT_ON_IDENTS): Remove macro (which was useless since many + years), use guarded long macros by default and define short versions + as aliases for the long ones. + +2017-01-15 Werner Lemberg + + * src/truetype/ttgxvar.c (tt_apply_var): Handle underline parameters + also. + +2017-01-11 Werner Lemberg + + * src/base/ftobjs.c (ft_open_face_internal): Improve tracing. + +2017-01-11 Werner Lemberg + + [truetype] Actually use metrics variation service. + + * src/base/ftmm.c: Include FT_SERVICE_METRICS_VARIATIONS_H. + (ft_face_get_mvar_service): New auxiliary function to look up + metrics variation service. + (FT_Set_Var_Design_Coordinates, FT_Set_MM_Blend_Coordinates, + FT_Set_Var_Blend_Coordinates): Call metrics variation service. + + * src/truetype/ttobjs.c (tt_face_init): Use metrics variations for + named instances. + +2017-01-11 Werner Lemberg + + [truetype] Provide metrics variation service. + + * include/freetype/internal/services/svmetric.h + (FT_Metrics_Adjust_Func): Reduce number of necessary parameters. + + * src/truetype/ttgxvar.c: Include FT_LIST_H. + (tt_size_reset_iterator): New auxiliary function for... + (tt_apply_var): New function. + + * src/truetype/ttgxvar.h: Updated. + + * src/truetype/ttdriver.c (tt_service_metrics_variations): Add + `tt_apply_mvar'. + + * include/freetype/internal/ftserv.h (FT_ServiceCache): Add metrics + variation service. + +2017-01-11 Werner Lemberg + + [truetype] Parse `MVAR' table. + + * src/truetype/ttgxvar.h (MVAR_TAG_XXX): New macros for MVAR tags. + (GX_Value, GX_MVarTable): New structures. + (GX_Blend): Add it. + + * src/truetype/ttgxvar.c (GX_VALUE_SIZE, GX_VALUE_CASE, + GX_GASP_CASE): New macros. + (ft_var_get_value_pointer): New auxiliary function to get a pointer + to a value from various SFNT tables already stored in `TT_Face'. + (ft_var_load_mvar): New function. + (TT_Get_MM_Var): Call it. + (tt_done_blend): Updated. + +2017-01-11 Werner Lemberg + + [truetype] More preparations for MVAR support. + + * src/truetype/ttobjs.c (tt_size_reset): Add argument to make + function only recompute ascender, descender, and height. + + * src/truetype/ttobjs.h: Updated. + + * src/truetype/ttdriver.c (tt_size_select, tt_size_request): + Updated. + +2017-01-09 Werner Lemberg + + [pcf] Disable long family names by default. + + * include/freetype/config/ftoption.h + (PCF_CONFIG_OPTION_LONG_FAMILY_NAMES): Comment out. + +2017-01-09 Werner Lemberg + + [pcf] Make long family names configurable. + + The change from 2016-09-29 was too radical (except for people using + the openSuSE GNU/Linux distribution). To ameliorate the situation, + PCF_CONFIG_OPTION_LONG_FAMILY_NAMES gets introduced which controls + the feature; if set, a new PCF property option + `no-long-family-names' can be used to switch this feature off. + + * include/freetype/config/ftoption.h, devel/ftoption.h + (PCF_CONFIG_OPTION_LONG_FAMILY_NAMES): New option. + + * include/freetype/ftpcfdrv.h: New header file (only containing + comments currently, used for building the documentation). + + * include/freetype/config/ftheader.h (FT_PCF_DRIVER_H): New macro. + + * src/pcf/pcf.h (PCF_Driver): Add `no_long_family_names' field. + + * src/pcf/pcfdrivr.c: Include FT_SERVICE_PROPERTIES_H and + FT_PCF_DRIVER_H. + (pcf_property_set, pcf_property_get): New functions. + (pcf_service_properties): New service. + (pcf_services): Updated. + (pcf_driver_init) [PCF_CONFIG_OPTION_LONG_FAMILY_NAMES]: Handle + `no_long_family_names'. + + * src/pcf/pcfread.c (pcf_load_font): Handle `no_long_family_names' + and PCF_CONFIG_OPTION_LONG_FAMILY_NAMES. + + * docs/CHANGES: Updated. + +2017-01-09 Werner Lemberg + + [pcf] Introduce a driver structure. + + To be filled later on with something useful. + + * src/pcf/pcf.h (PCF_Driver): New structure. + + * src/pcf/pcfdrivr.c (pcf_driver_init, pcf_driver_done): New dummy + functions. + (pcf_driver_class): Updated. + +2017-01-08 Werner Lemberg + + [truetype] Again some GX code shuffling. + + We need this later on for MVAR also. + + * src/truetype/ttgxvar.c (tt_hadvance_adjust): Split off computing + an item store variation delta into... + (ft_var_get_item_delta): ...new function. + +2017-01-08 Werner Lemberg + + [truetype] Adjust font variation flags for MVAR. + + * include/freetype/internal/tttypes.h (TT_FACE_FLAG_VAR_XXX): + Remove all flags related to MVAR; replace it with... + (TT_FACE_FLAG_VAR_MVAR): ...this new macro. + (TT_Face): Remove `mvar_support' field (which was still unused). + +2017-01-06 Werner Lemberg + + [truetype] More GX code shuffling. + + We need this later on for MVAR also. + + * src/truetype/ttgxvar.c (tt_done_blend): Split off handling of item + variation store into... + (ft_var_done_item_variation_store): ...new function. + +2017-01-06 Werner Lemberg + + [truetype] More generalization of GX stuff. + + We need this later on for MVAR also. + + * src/truetype/ttgxvar.c (ft_var_load_delta_set_index_mapping): Add + parameters for delta-set index mapping and item variation store. + (ft_var_load_item_variation_store): Add parameter for item variation + store. + s/hvarData/varData/. + Move allocation of `hvar_table' to... + (ft_var_load_hvar): ...this function. + Updated. + +2017-01-06 Werner Lemberg + + [truetype] Some GX structure renames for generalization. + + We need this later on for MVAR also. + + * src/truetype/ttgxvar.h (GX_HVarData): Renamed to... + (GX_ItemVarData): ...this. + (GX_HVarRegion): Renamed to... + (GX_VarRegion): ...this. + (GX_HVStore): Renamed to... + (GX_ItemVarStore): ...this. + (GX_WidthMap): Renamed to... + (GX_DeltaSetIdxMap): ...this. + + (GX_HVarTable): Updated. + + * src/truetype/ttgxvar.c: Updated. + +2017-01-06 Werner Lemberg + + [truetype] Code shuffling. + + * src/truetype/ttgxvar.c (ft_var_load_hvar): Split off loading of + item variation store and delta set index mapping into... + (ft_var_load_item_variation_store, + ft_var_load_delta_set_index_mapping): ...new functions. + +2017-01-06 Werner Lemberg + + [truetype] Add HVAR access without advance width map. + + * src/truetype/ttgxvar.c (ft_var_load_hvar): Handle case where + `offsetToAdvanceWidthMapping' is zero. + (tt_hadvance_adjust): Implement direct deltaSet access by glyph + index. + +2017-01-06 Werner Lemberg + + [pcf] Revise driver. + + This commit improves tracing and handling of malformed fonts. In + particular, the changes to `pcf_get_properties' fix + + https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=379 + + * src/pcf/pcfread.c (tableNames): Use long names for better + readability. + (pcf_read_TOC): Allow at most 9 tables. + (pcf_get_properties): Allow at most 256 properties. + Limit strings array length to 256 * (65536 + 1) bytes. + Better tracing. + (pcf_get_metric): Trace metric data. + (pcf_get_metrics): Allow at most 65536 metrics. + Fix comparison of `metrics->ascent' and `metrics->descent' to avoid + potential overflow. + Better tracing. + (pcf_get_bitmaps): Allow at most 65536 bitmaps. + Better tracing. + (pcf_get_encodings, pcf_get_accel): Better tracing. + + * src/pcf/pcfdrivr.c (PCF_Glyph_Load): Don't trace `format' details. + These are now shown by `pcf_get_bitmaps'. + +2017-01-04 Werner Lemberg + + * src/pcf/pcfdrivr.c (PCF_Face_Init): Trace compression format. + +2017-01-04 Werner Lemberg + + [cff] More consistency checks for pure CFFs. + + Reported as + + https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=378 + + * src/cff/cffload.c (cff_font_load): Check element number and size + of Name and Top DICT indices. + +2017-01-04 Werner Lemberg + + [cff, truetype] Minor tracing improvement. + + * src/cff/cffobjs.c (cff_face_init), src/truetype/ttobjs.c + (tt_face_init): Indent first tracing message from SFNT driver. + +2017-01-03 Werner Lemberg + + [truetype] Various minor fixes. + + * src/truetype/ttgload.c (TT_Load_Simple_Glyph): Check instruction + size only if we do native hinting. + (TT_Load_Glyph): Trace returned error code. + + * src/truetype/ttobjs.c (tt_size_run_fpgm, tt_size_run_prep): Trace + returned error code. + (tt_size_ready_bytecode): Don't run `prep' table if `fpgm' table is + invalid. + +2017-01-03 Werner Lemberg + + [sfnt] Don't fail if PCLT, EBLC (and similar tables) are invalid. + + These tables are optional. + + * src/sfnt/sfobjs.c (sfnt_load_face): Implement it. + +2017-01-03 Werner Lemberg + + * src/cff/cffparse.c (cff_parse_num): Simplify. + +2017-01-03 Werner Lemberg + + Various fixes for clang's undefined behaviour sanitizer. + + * src/cff/cffload.c (FT_fdot14ToFixed): Fix casting. + (cff_blend_doBlend): Don't left-shift negative numbers. + Handle 5-byte numbers byte by byte to avoid alignment issues. + + * src/cff/cffparse.c (cff_parse_num): Handle 5-byte numbers byte by + byte to avoid alignment issues. + + * src/cid/cidload (cid_read_subrs): Do nothing if we don't have any + subrs. + + * src/psaux/t1decode.c (t1_decode_parse_charstring): Fix tracing. + + * src/tools/glnames.py (main): Put `DEFINE_PSTABLES' guard around + definition of `ft_get_adobe_glyph_index'. + + * src/psnames/pstables.h: Regenerated. + + * src/psnames/psmodule.c: Include `pstables.h' twice to get both + declaration and definition. + + * src/truetype/ttgxvar.c (FT_fdot14ToFixed, FT_intToFixed): Fix + casting. + +2017-01-01 Werner Lemberg + + [cff] Handle multiple `blend' operators in a row correctly. + + Reported as + + https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=368 + + * src/cff/cffload.c (cff_blend_doBlend): Adjust `parser->stack' + pointers into `subFont->blend_stack' after reallocation. + +2017-01-01 Werner Lemberg + + [sfnt] Return correct number of named instances for TTCs. + + Without this patch, requesting information for face index N returned + the data for face index N+1 (or index 0). + + * src/sfnt/sfobjs.c (sfnt_init_face): Correctly adjust `face_index' + for negative `face_instance_index' values. + +2016-12-31 Werner Lemberg + + */*: Use hex numbers for errors in tracing messages. + +2016-12-31 Werner Lemberg + + [truetype] Check axis count in HVAR table. + + Reported as + + https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=362 + + * src/truetype/ttgxvar.c (ft_var_load_hvar): Check axis count. + (ft_var_load_avar): Fix tracing message. + + +---------------------------------------------------------------------------- + +Copyright 2016-2018 by +David Turner, Robert Wilhelm, and Werner Lemberg. + +This file is part of the FreeType project, and may only be used, modified, +and distributed under the terms of the FreeType project license, +LICENSE.TXT. By continuing to use, modify, or distribute this file you +indicate that you have read the license and understand and accept it +fully. + + +Local Variables: +version-control: never +coding: utf-8 +End: