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Werner Lemberg
Date : 2016-11-06 12:32:51
Hash : 37e193e9
Message : Introduce a way of quickly retrieving (embedded) bitmap metrics. `FT_Load_Glyph' doesn't generate a bitmap for a non-bitmap glyph until the user calls `FT_Render_Glyph'. However, it always allocates memory for bitmaps and copies or decodes the contents of a bitmap glyph, which can be quite slow for PNG data. * include/freetype/freetype.h (FT_LOAD_BITMAP_METRICS_ONLY): New macro. * src/base/ftobjs.c (FT_Load_Glyph): Unset FT_LOAD_RENDER if FT_LOAD_BITMAP_METRICS_ONLY is used. * src/sfnt/ttsbit.c (tt_sbit_decoder_alloc_bitmap, tt_sbit_decoder_load_bitmap): Add argument to control allocation of the glyph slot. (tt_sbit_decoder_load_image, tt_sbit_decoder_load_compound, tt_face_load_sbit_image): Updated. * src/pcf/pcfdrivr.c (PCF_Glyph_Load): Quickly exit if `FT_LOAD_BITMAP_METRICS_ONLY' is set. * src/pfr/pfrsbit.c, src/pfr/pfrsbit.h (pfr_slot_load_bitmap): Add argument to control allocation of the glyph slot. * src/pfr/pfrobjs (pfr_slot_load): Updated. * src/winfonts/winfnt.c (FNT_Load_Glyph): Ditto. * docs/CHANGES: Updated.
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2016-11-06 Seigo Nonaka <nona@google.com> Werner Lemberg <wl@gnu.org> Introduce a way of quickly retrieving (embedded) bitmap metrics. `FT_Load_Glyph' doesn't generate a bitmap for a non-bitmap glyph until the user calls `FT_Render_Glyph'. However, it always allocates memory for bitmaps and copies or decodes the contents of a bitmap glyph, which can be quite slow for PNG data. * include/freetype/freetype.h (FT_LOAD_BITMAP_METRICS_ONLY): New macro. * src/base/ftobjs.c (FT_Load_Glyph): Unset FT_LOAD_RENDER if FT_LOAD_BITMAP_METRICS_ONLY is used. * src/sfnt/ttsbit.c (tt_sbit_decoder_alloc_bitmap, tt_sbit_decoder_load_bitmap): Add argument to control allocation of the glyph slot. (tt_sbit_decoder_load_image, tt_sbit_decoder_load_compound, tt_face_load_sbit_image): Updated. * src/pcf/pcfdrivr.c (PCF_Glyph_Load): Quickly exit if `FT_LOAD_BITMAP_METRICS_ONLY' is set. * src/pfr/pfrsbit.c, src/pfr/pfrsbit.h (pfr_slot_load_bitmap): Add argument to control allocation of the glyph slot. * src/pfr/pfrobjs (pfr_slot_load): Updated. * src/winfonts/winfnt.c (FNT_Load_Glyph): Ditto. * docs/CHANGES: Updated. 2016-11-06 Werner Lemberg <wl@gnu.org> Synchronize with gnulib (#49448). * include/freetype/config/ftconfig.h, builds/unix/ftconfig.in, builds/vms/ftconfig.h (FT_TYPEOF): Update code to use definition in current version of `intprops.h'. Other minor synchronization to reduce code differences between the three files. 2016-11-03 Behdad Esfahbod <behdad@behdad.org> [truetype] Clamp variation requests to valid range. This is required by OpenType 1.8; it also avoids rounding surprises. * src/truetype/ttgxvar.c (TT_Set_Var_Design): Clamp design coordinates outside of the allowed range to always stay within the range instead of producing an error. 2016-10-29 Werner Lemberg <wl@gnu.org> [truetype] Remove clang warnings. * src/truetype/ttinterp.h (TT_ExecContextRec): Using `FT_ULong' for loop counter handling. * src/truetype/ttinterp.c: Updated. (Ins_SCANTYPE): Use signed constant. (TT_RunIns): Ensure `num_twilight_points' is 16bit. 2016-10-27 Werner Lemberg <wl@gnu.org> [truetype] Fix commit from 2014-11-24. Problem reported by Hin-Tak Leung <htl10@users.sourceforge.net>. * src/truetype/ttpload.c (tt_face_load_hdmx): Fix file checking logic. 2016-10-26 Werner Lemberg <wl@gnu.org> Add `FT_Get_{MM,Var}_Blend_Coordinates' functions. * include/freetype/ftmm.h: Declare. * include/freetype/internal/services/svmm.h (FT_Get_MM_Blend_Func): New typedef. (MultiMasters): New MM service function `get_mm_blend'. (FT_DEFINE_SERVICE_MULTIMASTERSREC): Updated. Update all callers. * src/base/ftmm.c (FT_Get_MM_Blend_Coordinates, FT_Get_Var_Blend_Coordinates): Implement. * src/truetype/ttdriver.c: Updated. * src/truetype/ttgxvar.c (TT_Get_MM_Blend): New function to handle `get_mm_blend' service. * src/truetype/ttgxvar.h: Updated. * src/type1/t1driver.c: Updated. * src/type1/t1load.c (T1_Get_MM_Blend): New function to handle `get_mm_blend' service. * src/type1/t1load.h: Updated. * docs/CHANGES: Document. 2016-10-26 Werner Lemberg <wl@gnu.org> * src/type1/t1load.c (parse_subrs): Fix limit check. Reported as https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=81 2016-10-25 Alexei Podtelezhnikov <apodtele@gmail.com> [cff] Correct cmap format reporting (#24819). * src/cff/cffdrivr.c (cff_get_cmap_info): Throw an error on synthetic charmap instead of guessing its format and language. 2016-10-22 Werner Lemberg <wl@gnu.org> [truetype] Fix SCANTYPE instruction (#49394). * src/truetype/ttinterp.c (Ins_SCANTYPE): Only use lower 16bits. 2016-10-22 Werner Lemberg <wl@gnu.org> [sfnt] Improve handling of invalid post 2.5 tables [#49393]. * src/sfnt/ttpost.c (load_format_25): We need at least a single table entry. 2016-10-14 Werner Lemberg <wl@gnu.org> [truetype] Fix handling of `cvar' table data. Reported as https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=53 * src/truetype/ttgxvar.c (tt_face_vary_cvt): Ignore invalid CVT indices. 2016-10-11 Werner Lemberg <wl@gnu.org> [psaux] Fix handling of invalid flex subrs. Problem reported as https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=52 * src/psaux/t1decode.c (t1_decoder_parse_charstrings) <op_callothersubr>: Set `flex_state' after error checking. 2016-10-11 Werner Lemberg <wl@gnu.org> * src/truetype/ttgxvar.c (tt_done_blend): Fix deallocation. 2016-10-08 Werner Lemberg <wl@gnu.org> * src/cid/cidload.c (cid_face_open): Properly propagate `error'. 2016-10-08 Werner Lemberg <wl@gnu.org> [cid] Fix parsing of subr offsets. Bug introduced 2016-05-16. * src/cid/cidparse.c (cid_parser_new): Fix off-by-one error. 2016-10-01 Werner Lemberg <wl@gnu.org> [sfnt] Disable bitmap strikes if we don't have a bitmap data table. * src/sfnt/ttsbit.c (tt_face_load_sbit): Check whether we have a bitmap data table. 2016-10-01 Alexei Podtelezhnikov <apodtele@gmail.com> [smooth] Remove impossibility. * src/smooth/ftgrays.c (TWorker): Rearrange fields. (gray_convert_glyph): Remove impossible condition and clean up. 2016-09-29 Werner Lemberg <wl@gnu.org> [pcf] Enrich family name with foundry name and glyph width info. This is a very old patch from openSuSE (from 2006, submitted to FreeType in 2011) that I forgot to apply. https://build.opensuse.org/package/view_file/openSUSE:Factory/freetype2/freetype2-bitmap-foundry.patch Prepend the foundry name plus a space to the family name. There are many fonts just called `Fixed' which look completely different, and which have nothing to do with each other. When selecting `Fixed' in KDE or Gnome one gets results that appear rather random, the style changes often if one changes the size and one cannot select some fonts at all. We also check whether we have `wide' characters; all put together, we get family names like `Sony Fixed' or `Misc Fixed Wide'. * src/pcf/pcfread.c (pcf_load_font): Implement it. * docs/CHANGES: Document it. 2016-09-29 Werner Lemberg <wl@gnu.org> [ftfuzzer] Speed up. * src/tools/ftfuzzer/ftfuzzer.cc (LLVMFuzzerTestOneInput): Don't check for embedded bitmaps if we have a non-default instance. 2016-09-29 Werner Lemberg <wl@gnu.org> [truetype] Disallow bitmap strokes for non-default instances. Also speed up access of default instances if GX variations are active. * include/freetype/internal/tttypes.h (TT_FaceRec): Add `is_default_instance' member. * src/sfnt/sfobjs.c (sfnt_init_face): Initialize `is_default_instance'. * src/truetype/ttgload.c (TT_Process_Simple_Glyph, load_truetype_glyph): Add test for default instance. (TT_Load_Glyph): Load embedded bitmaps for default instance only. * src/truetype/ttgxvar.c (TT_Set_MM_Blend): Compute `is_default_instance'. 2016-09-29 Werner Lemberg <wl@gnu.org> [truetype] Clean up `TT_Face' structure. * include/freetype/internal/tttypes.h (TT_FaceRec): Remove unused fields `horz_metrics' and `vert_metrics'. Update documentation. * src/sfnt/sfobjs.c (sfnt_done_face): Updated. 2016-09-28 Werner Lemberg <wl@gnu.org> More FT_ZERO usage. * src/gxvalid/gxvcommn.c (gxv_ClassTable_validate): s/ft_memset/FT_MEM_ZERO/. * src/psaux/t1decode.c (t1_decoder_parse_charstrings): s/ft_memset/FT_ARRAY_ZERO/. * src/raster/ftraster.c (FT_ZERO): Define. (ft_black_new): Use it. * src/raster/ftrend1.c (ft_raster1_get_cbox): s/FT_MEM_ZERO/FT_ZERO/. * src/smooth/ftgrays.c (FT_ZERO): Define. (gray_raster_new): Use it. * src/smooth/ftsmooth.c (ft_smooth_get_cbox): s/FT_MEM_ZERO/FT_ZERO/. 2016-09-28 Werner Lemberg <wl@gnu.org> */*: s/FT_MEM_ZERO/FT_ZERO/ where appropriate. 2016-09-27 Werner Lemberg <wl@gnu.org> [truetype] Trace number of executed opcodes. * src/truetype/ttinterp.c (TT_RunIns): Implement it. 2016-09-27 Werner Lemberg <wl@gnu.org> [truetype] Speed up `TT_Load_Glyph'. This avoids additional calls to `tt_face_lookup_table' for the `glyf' table, which can be expensive. * include/freetype/internal/tttypes.h (TT_LoaderRec): Move `glyf_offset' field to ... (TT_FaceRec): ... this structure. * src/truetype/ttgload.c (load_truetype_glyph): Updated. (tt_loader_init): Move initialization of `glyf_offset' to ... * src/truetype/ttpload.c (tt_face_load_loca): ... this function. 2016-09-27 Werner Lemberg <wl@gnu.org> [truetype] Introduce dynamic limits for some bytecode opcodes. This speeds up FreeType's handling of malformed fonts. * src/truetype/ttinterp.c (TT_RunIns): Set up limits for the number of twilight points, the total number of negative jumps, and the total number of loops in LOOPCALL opcodes. The values are based on the number of points and entries in the CVT table. (Ins_JMPR): Test negative jump counter. (Ins_LOOPCALL): Test loopcall counter. * src/truetype/ttinterp.h (TT_ExecContext): Updated. * docs/CHANGES: Updated. 2016-09-25 Werner Lemberg <wl@gnu.org> [truetype] Sanitize only last entry of `loca' table. Without this patch, a loca sequence like `0 100000 0 100000 ...', where value 100000 is larger than the `glyf' table size, makes FreeType handle the whole `glyf' table as a single glyph again and again, which is certainly invalid (and can be very slow, too). * src/truetype/ttpload.c (tt_face_get_location): Implement. Improve tracing messages. 2016-09-25 Werner Lemberg <wl@gnu.org> * src/tools/ftfuzzer/ftfuzzer.cc (LLVMFuzzerTestOneInput): Fix typo. 2016-09-24 Werner Lemberg <wl@gnu.org> [autofit] Tracing fixes. * src/autofit/afmodule.c (af_autofitter_load_glyph): Call dumping functions only if we actually do tracing. 2016-09-22 Alexei Podtelezhnikov <apodtele@gmail.com> [smooth] Reduce divisions in the line renderer. We don't need some divisions if a line segments stays within a single row or a single column of pixels. * src/smooth/ftgrays.c (gray_render_line) [FT_LONG64]: Make divisions conditional. 2016-09-15 Alexei Podtelezhnikov <apodtele@gmail.com> * src/smooth/ftgrays.c (gray_sweep): Remove check for empty table. 2016-09-14 Alexei Podtelezhnikov <apodtele@gmail.com> [smooth] Another tiny speed-up. * src/smooth/ftgrays.c (gray_find_cell): Merge into... (gray_record_cell): ... this function. 2016-09-11 Alexei Podtelezhnikov <apodtele@gmail.com> * src/smooth/ftgrays.c (gray_{find,set}_cell): Remove dubious code. 2016-09-11 Alexei Podtelezhnikov <apodtele@gmail.com> [smooth] Fix valgrind warning and reoptimize. The algorithm calls `gray_set_cell' at the start of each new contour or when the contours cross the cell boundaries. Double-checking for that is wasteful. * src/smooth/ftgrays.c (gray_set_cell): Remove check for a new cell. (gray_convert_glyph): Remove initialization introduced by 44b172e88. 2016-09-10 Werner Lemberg <wl@gnu.org> [sfnt] Fix previous commit. Problems reported as https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=40 We now map the strike index right before accessing the physical data, not earlier. * src/sfnt/sfobjs.c (sfnt_load_face): Set `face->sbit_strike_map' after creating the map so that... * src/sfnt/ttsbit.c (tt_face_load_strike_metrics): ... this function can be used before and after setting up `sbit_strike_map'. (tt_face_set_sbit_strike): Revert change. (tt_sbit_decoder_init, tt_face_load_sbix_image): Map strike index. * src/truetype/ttdriver.c (tt_size_select): Revert change. 2016-09-09 Werner Lemberg <wl@gnu.org> [ftfuzzer] Minor improvements. * src/tools/ftfuzzer/ftfuzzer.cc (LLVMFuzzerTestOneInput): Ignore invalid strikes. Use better values for call to `FT_Set_Char_Size'. 2016-09-09 Werner Lemberg <wl@gnu.org> [sfnt] Don't provide (completely) broken strike data. FreeType tries to sanitize strike header data; we now reject completely broken ones. * include/freetype/internal/tttypes.h (TT_FaceRec): New `sbit_strike_map' array pointer. * src/base/ftobjs.c (FT_Match_Size): Reject matches where either width or height would be zero. Add tracing message in case of error. * src/sfnt/sfobjs.c (sfnt_load_face): Populate `sbit_strike_map', only using (more or less) valid strike header data for FT_Face's `available_sizes' array. (sfnt_done_face): Updated. * src/sfnt/ttsbit.c (tt_face_set_sbit_strike): Use `sbit_strike_map'. (tt_face_load_strike_metrics): Improve tracing. * src/truetype/ttdriver.c (tt_size_select): Use `sbit_strike_map'. 2016-09-08 Werner Lemberg <wl@gnu.org> * Version 2.7 released. ======================= Tag sources with `VER-2-7'. * docs/VERSION.TXT: Add entry for version 2.7. * README, Jamfile (RefDoc), builds/windows/vc2005/freetype.vcproj, builds/windows/vc2005/index.html, builds/windows/vc2008/freetype.vcproj, builds/windows/vc2008/index.html, builds/windows/vc2010/freetype.vcxproj, builds/windows/vc2010/index.html, builds/windows/visualc/freetype.dsp, builds/windows/visualc/freetype.vcproj, builds/windows/visualc/index.html, builds/windows/visualce/freetype.dsp, builds/windows/visualce/freetype.vcproj, builds/windows/visualce/index.html, builds/wince/vc2005-ce/freetype.vcproj, builds/wince/vc2005-ce/index.html, builds/wince/vc2008-ce/freetype.vcproj, builds/wince/vc2008-ce/index.html: s/2.6.5/2.7/, s/265/27/. * include/freetype/freetype.h (FREETYPE_MINOR): Set to 7. (FREETYPE_PATCH): Set to 0. * builds/unix/configure.raw (version_info): Set to 18:6:12. * CMakeLists.txt (VERSION_MINOR): Set to 7. (VERSION_PATCH): Set to 0. * docs/CHANGES: Updated. 2016-09-08 Werner Lemberg <wl@gnu.org> * src/truetype/ttinterp.c: Include `ttgxvar.h'. This fixes the `multi' build. 2016-09-08 Werner Lemberg <wl@gnu.org> [autofit] Another improvement to Armenian support. Suggested by Hrant H Papazian <hpapazian@gmail.com>. * src/autofit/afscript.h: Use better suited characters to derive default stem widths. 2016-09-07 Alexei Podtelezhnikov <apodtele@gmail.com> * src/smooth/ftgrays.c (gray_hline): Microptimize. 2016-09-06 Alexei Podtelezhnikov <apodtele@gmail.com> [smooth] Operate in absolute bitmap coordinates. Simpler bitmap addressing improves performance by 1.5%. * src/smooth/ftgrays.c (gray_TWorker): Remove count fields. (gray_dump_cells, gray_find_cell, gray_set_cell, gray_hline, gray_sweep, gray_convert_glyph, gray_raster_render): Updated. 2016-09-06 Alexei Podtelezhnikov <apodtele@gmail.com> [smooth] Improve contour start (take 2). * src/smooth/ftgrays.c (gray_move_to): Call `gray_set_cell' directly instead of... (gray_start_cell): ... this function, which is removed. (gray_convert_glyph): Make initial y-coordinate invalid. 2016-09-06 Werner Lemberg <wl@gnu.org> [type1] MM fonts support exactly zero named instances (#48748). * src/type1/t1load.c (T1_Get_MM_Var): Set `num_namedstyles' to zero. 2016-09-06 Jonathan Kew <jfkthame@gmail.com> [cff] Fix uninitialized memory. Problem reported as https://bugzilla.mozilla.org/show_bug.cgi?id=1270288 * src/cff/cf2interp.c (cf2_interpT2CharString): Initialize `storage' array to handle a `get' opcode without a previous `put'. 2016-09-05 Alexei Podtelezhnikov <apodtele@gmail.com> * src/smooth/ftgrays.c (gray_move_to, gray_start_cell): Revert. 2016-09-05 Alexei Podtelezhnikov <apodtele@gmail.com> [smooth] Improve contour start. * src/smooth/ftgrays.c (gray_move_to): Call `gray_set_cell' directly instead of... (gray_start_cell): ... this function, which is removed. 2016-09-05 Werner Lemberg <wl@gnu.org> [cff] Fix memory initialization. * src/cff/cf2stack.c (cf2_stack_init): Use `FT_NEW'. The `Q' variants of FreeType's memory allocation macros don't do zeroing. 2016-09-05 Werner Lemberg <wl@gnu.org> [ftrandom] Minor improvements. * src/tools/ftrandom/ftrandom.c (_XOPEN_SOURCE): New macro, set to 500. * src/tools/ftrandom/Makefile (CFLAGS): Split off include directories to ... (INCLUDES): ... this new variable. (LDFLAGS): New variable. (ftrandom.o, ftrandom): Updated. 2016-09-05 Werner Lemberg <wl@gnu.org> [autofit] Improve Armenian support. Thanks to Hrant H Papazian <hpapazian@gmail.com> for help. * src/autofit/afblue.dat (AF_BLUE_STRING_ARMENIAN_*): Improve selection of characters. * src/autofit/afblue.c, src/autofit/afblue.h: Regenerated. 2016-09-04 Werner Lemberg <wl@gnu.org> [ftrandom] Improve Makefile. It now supports both a normal build (`./configure && make') and a development build (`make devel'). * src/tools/ftrandom/Makefile (VPATH): Set it so that `libfreetype.a' gets searched in both `objs' (for the development build) and `objs/.libs' (for a normal build which uses libtool). (LIBS): Add missing libraries. (ftrandom.o): New rule. (ftrandom): Use automatic variables. 2016-09-03 Werner Lemberg <wl@gnu.org> [truetype] More fixes for handling of GX deltas. Problems reported by Bob Taylor <Bob.Taylor@monotype.com>. * src/truetype/ttgxvar.c (TT_Vary_Apply_Glyph_Deltas): Fix rough sanity test for glyph variation array header size. Always set stream position before reading packed x and y deltas. Fix thinko w.r.t. `localpoints' array. 2016-09-03 Werner Lemberg <wl@gnu.org> [ftrandom] Various fixes. * src/tools/ftrandom/ftrandom.c (GOOD_FONTS_DIR): Provide better default. (error_fraction): Make it of type `double' to work as advertized – this was completely broken. Update all related code. (error_count, fcnt): Make it unsigned to fix compiler warnings. Update all related code. (fontlist): Change `len' member to `long' to fix compiler warnings. (FT_MoveTo, FT_LineTo, FT_ConicTo, FT_CubicTo, abort_test): Tag unused variables. (TestFace, FindFonts, copyfont, do_test): Fix compiler warnings. (ExecuteTest): Ditto. Call `FT_Done_FreeType'. (getErrorCnt): Replace `ceil' with an ordinary cast to `unsigned int'. (usage): Improve output. (main): Fix compiler warnings. * src/tools/ftrandom/README: Updated. 2016-09-03 Werner Lemberg <wl@gnu.org> [base] Avoid negative bitmap stroke dimensions (#48985). * src/base/ftobjs.c (FT_Open_Face): Check whether negation was actually successful. For example, this can fail for value -32768 if the type is `signed short'. If there are problems, disable the stroke. 2016-09-03 Werner Lemberg <wl@gnu.org> [cff] Avoid null pointer passed to FT_MEM_COPY (#48984). * src/cff/cffload.c (cff_index_get_name): Check `byte_len'. 2016-09-02 Werner Lemberg <wl@gnu.org> [unix] Enable 64bit support in file system access (#48962). * builds/unix/configure.raw: Call `AC_SYS_LARGEFILE'. 2016-09-02 Werner Lemberg <wl@gnu.org> [sfnt] Avoid left shift of negative value (#48980). * src/sfnt/ttsbit.c (tt_sbit_decoder_load_bit_aligned): Use unsigned constant. 2016-09-02 Werner Lemberg <wl@gnu.org> * src/smooth/ftgrays.c (gray_hline): Fix clang compiler warnings. 2016-09-02 Werner Lemberg <wl@gnu.org> Some preparations for the next release. * include/freetype/config/ftoption.h (TT_CONFIG_OPTION_SUBPIXEL_HINTING): Enable. * docs/CHANGES: Updated. 2016-09-01 Alexei Podtelezhnikov <apodtele@gmail.com> [smooth] Simplify span rendering more. It turns out that there is significant cost associated with `FT_Span' creation and calls to `gray_render_span' because it happerns so frequently. This removes these steps from our internal use but leaves it alone for `FT_RASTER_FLAG_DIRECT" to preserve API. The speed gain is about 5%. * src/smooth/ftgrays.c (gray_render_span): Removed. The code is migrated to... (gray_hline): ... here. 2016-08-30 Alexei Podtelezhnikov <apodtele@gmail.com> [smooth] Streamline pixmap drawing a bit more. Zero coverage is unlikely (1 out of 256) to warrant checking. This gives 0.5% speed improvement in rendering simple glyphs. * src/smooth/ftgrays.c (gray_hline, gray_render_span): Remove checks. 2016-08-29 Alexei Podtelezhnikov <apodtele@gmail.com> [smooth] Streamline pixmap drawing. This gives 2% speed improvement in rendering simple glyphs. * src/smooth/ftgrays.c (TPixmap): Reduced pixmap descriptor with a pointer to its bottom-left and pitch to be used in... (gray_TWorker): ... here. (gray_render_span): Move pixmap flow check from here... (gray_raster_render): .. to here. 2016-08-27 Alexei Podtelezhnikov <apodtele@gmail.com> [smooth] Reduce stack of band boundaries. * src/smooth/ftgrays.c (gray_TBand): Removed. (gray_convert_glyph): Updated to stack band boundaries concisely. 2016-08-26 Werner Lemberg <wl@gnu.org> * src/cid/cidload.c (cid_face_open): Improve handling of `SDBytes'. 2016-08-26 Werner Lemberg <wl@gnu.org> [cid] Fix commit from 2016-05-16. * src/cid/cidparse.c (cid_parser_new): Fix off-by-one errors. 2016-08-26 Werner Lemberg <wl@gnu.org> [sfnt] Cache offset and size to bitmap data table. This commit avoids `EBDT' and friends being looked up again and again while loading a single embedded bitmap. * include/freetype/internal/tttypes.h (TT_FaceRec) [TT_CONFIG_OPTION_EMBEDDED_BITMAPS]: New fields `ebdt_start' and `ebdt_size'. * src/sfnt/ttsbit.c (tt_sbit_decoder_init): Move table lookup to ... (tt_face_load_sbit): ... this function; also store the table size and offset. 2016-08-26 Alexei Podtelezhnikov <apodtele@gmail.com> * src/smooth/ftgrays.c (gray_raster_render): Minor tweaks. 2016-08-26 Werner Lemberg <wl@gnu.org> [type1] Fix heap buffer overflow. Reported as https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=36 * src/type1/t1load.c (parse_charstrings): Reject fonts that don't contain glyph names. 2016-08-25 Werner Lemberg <wl@gnu.org> [sfnt] Fix previous commit (#48901). * src/sfnt/ttcmap.c (tt_cmap4_char_map_binary): Thinkos. 2016-08-25 Werner Lemberg <wl@gnu.org> [sfnt] Speed up handling of invalid format 4 cmaps. * src/sfnt/ttcmap.c (tt_cmap4_next, tt_cmap4_char_map_binary): Add tests for `num_glyph' from `tt_cmap4_char_map_linear'. 2016-08-25 Werner Lemberg <wl@gnu.org> * include/freetype/internal/ftdriver.h: Remove unused typedefs. 2016-08-22 Alexei Podtelezhnikov <apodtele@gmail.com> [smooth] Simplify span rendering. This removes unnecessary complexity of span merging and buffering. Instead, the spans are rendered as they come, speeding up the rendering by about 5% as a result. * src/smooth/ftgrays.c [FT_MAX_GRAY_SPANS]: Macro removed. (gray_TWorker): Remove span buffer and related fields. (gray_sweep, gray_hline): Updated. * include/freetype/ftimage.h: Remove documentation note about `FT_MAX_GRAY_SPANS', which was never in `ftoption.h' and is now gone. 2016-08-16 Werner Lemberg <wl@gnu.org> [truetype] Fix `MPS' instruction. According to Greg Hitchcock, MPS in DWrite really returns the point size. * src/truetype/ttobjs.h (TT_SizeRec): Add `point_size' member. * src/truetype/ttdriver.c (tt_size_request): Set `point_size'. * src/truetype/ttinterp.h (TT_ExecContextRec): Add `pointSize' member. * src/truetype/ttinterp.c (TT_Load_Context): Updated. (Ins_MPS): Fix instruction. 2016-08-16 Werner Lemberg <wl@gnu.org> [lzw] Optimize last commit. * src/lzw/ftzopen.c (ft_lzwstate_get_code): Move check into conditional clause. 2016-08-16 Werner Lemberg <wl@gnu.org> [lzw] Avoid invalid left shift. Reported as https://bugzilla.mozilla.org/show_bug.cgi?id=1295366 * src/lzw/ftzopen.c (ft_lzwstate_get_code): Limit `num_bits'. 2016-08-16 Werner Lemberg <wl@gnu.org> [lzw] Avoid buffer overrun. Reported as https://bugzilla.mozilla.org/show_bug.cgi?id=1273283 * src/lzw/ftzopen.c (ft_lzwstate_refill): Ensure `buf_size' doesn't underflow. 2016-08-16 Werner Lemberg <wl@gnu.org> [truetype] Fix compiler warning. * src/truetype/ttgload.c (load_truetype_glyph): Add cast. 2016-08-13 Werner Lemberg <wl@gnu.org> [winfonts] Avoid zero bitmap width and height. Reported as https://bugzilla.mozilla.org/show_bug.cgi?id=1272173 * src/winfonts/winfnt.c (FNT_Face_Init): Check zero pixel height. (FNT_Load_Glyph): Check for zero pitch. 2016-08-11 Alexei Podtelezhnikov <apodtele@gmail.com> * src/truetype/ttinterp.c (Pop_Push_Count): Revert changes. 2016-08-11 Alexei Podtelezhnikov <apodtele@gmail.com> * src/truetype/ttinterp.c (TT_RunIns): Minor and formatting. 2016-08-11 Alexei Podtelezhnikov <apodtele@gmail.com> * src/truetype/ttinterp.c (Pop_Push_Count): Fix some entries. 2016-08-10 Peter Klotz <Peter.Klotz@ith-icoserve.com> * src/smooth/ftgrays.c (gray_hline): Fix uninitialized access. 2016-08-10 Werner Lemberg <wl@gnu.org> [sfnt] Use correct type for `italicAngle' field (#48732). * src/sfnt/ttload.c (tt_face_load_post): Fix types. 2016-08-06 Jon Spencer <jon@jonspencer.ca> [sfnt] Fix `FT_Get_Advance' for bitmap strikes. `FT_Get_Advance' returns 0 for bitmap fonts. It first gets the advance value from the font table and then scales it by the `font->size->metrics->x_scale' field. But `FT_Select_Size' doesn't set that value for bitmap fonts and the advance gets scaled to zero. Taken from https://github.com/behdad/harfbuzz/issues/252 * src/sfnt/ttsbit.c (tt_face_load_strike_metrics) <TT_SBIT_TABLE_TYPE_EBLC>: Set scale values. 2016-08-06 Behdad Esfahbod <behdad@behdad.org> [truetype] Fix GX variation handling of composites. * src/truetype/ttgload.c (load_truetype_glyph) [TT_CONFIG_OPTION_GX_VAR_SUPPORT]: Check `ARGS_ARE_XY_VALUES' flag. 2016-08-05 Alexei Podtelezhnikov <apodtele@gmail.com> [smooth] Minor refactoring. * src/smooth/ftgrays.c (gray_render_scanline, gray_render_line): Updated. 2016-07-29 Werner Lemberg <wl@gnu.org> [sfnt, truetype] Don't abort on invalid `maxComponentDepth'. Since 2016-05-16 we detect infinite recursion directly. * src/sfnt/ttload.c (tt_face_load_maxp): Don't adjust `maxComponentDepth'. * src/truetype/ttgload.c (load_truetype_glyph): Don't abort if `maxComponentDepth' is not valid. Instead, simply adjust its value and emit a tracing message. 2016-07-26 Werner Lemberg <wl@gnu.org> * src/autofit/aflatin.c (af_latin_metrics_scale_dim): Minor. No functional change. 2016-07-22 Hin-Tak Leung <htl10@users.sourceforge.net> [truetype] Record the end of IDEFs. To match the logic in FDEF. The value of the end is only used for bound-checking in `Ins_JMPR', so it may not have been obvious that it was not recorded. Tested (as part of Font Validator 2.0) all the fonts on Fedora and did not see any change. * src/truetype/ttinterp.c (Ins_IDEF): Updated. 2016-07-19 Werner Lemberg <wl@gnu.org> [truetype] Sanitizer fix, second try. * src/truetype/ttgxvar.c (ft_var_readpackedpoints): Fix boundary tests and use only one slot more. 2016-07-19 Werner Lemberg <wl@gnu.org> [truetype] Sanitizer fix. * src/truetype/ttgxvar.c (ft_var_readpackedpoints): Increase array to fix nested loops. 2016-07-18 Werner Lemberg <wl@gnu.org> [truetype] Make GETDATA work only for GX fonts. * src/truetype/ttinterp.c (opcode_name): Updated. (Ins_GETDATA): Only define for `TT_CONFIG_OPTION_GX_VAR_SUPPORT'. (TT_RunIns): Updated. 2016-07-17 Werner Lemberg <wl@gnu.org> [truetype] Add support for Apple's GETDATA[], opcode 0x92 bytecode instruction. It always returns 17, and we have absolutely no idea what it is good for... * src/truetype/ttinterp.c (Pop_Push_Count, opcode_name): Updated. (Ins_GETDATA): New function. (TT_RunIns): Add it. 2016-07-16 Werner Lemberg <wl@gnu.org> [truetype] Add bytecode support for GX variation fonts. This commit implements undocumented (but confirmed) stuff from Apple's old bytecode engine. GETVARIATION[], opcode 0x91 This opcode pushes normalized variation coordinates for all axes onto the stack (in 2.14 format). Coordinate of first axis gets pushed first. GETINFO[], selector bit 3 If GX variation support is enabled, bit 10 of the result is set to 1. * src/truetype/ttinterp.c: Include FT_MULTIPLE_MASTERS_H. (opcode_name) [TT_CONFIG_OPTION_GX_VAR_SUPPORT]: Updated. (Ins_GETINFO) [TT_CONFIG_OPTION_GX_VAR_SUPPORT]: Handle selector bit 3, checking support for variation glyph hinting. (Ins_GETVARIATION) [TT_CONFIG_OPTION_GX_VAR_SUPPORT]: New function to implement opcode 0x91. (TT_RunIns) [TT_CONFIG_OPTION_GX_VAR_SUPPORT]: Handle opcode 0x91. 2016-07-16 Werner Lemberg <wl@gnu.org> [truetype] Fix GETINFO bytecode instruction. * src/truetype/ttinterp.c (Ins_GETINFO): Fix return value for stretching information. 2016-07-16 Behdad Esfahbod <behdad@behdad.org> [truetype] Make all glyphs in `Zycon' GX font work. * src/truetype/ttgxvar.c (ft_var_readpackedpoints): Fix boundary tests. 2016-07-16 Werner Lemberg <wl@gnu.org> [truetype] Fix GX delta tracing. * src/truetype/ttgxvar.c (TT_Vary_Apply_Glyph_Deltas): Trace relative point movements. 2016-07-16 Behdad Esfahbod <behdad@behdad.org> [truetype] More fixes for GX. This finally fixes the rendering of the cyclist and the lizard in the `Zycon' font. * src/truetype/ttgxvar.c (ft_var_readpackedpoints): `first' point index is always cumulative. (tt_handle_deltas): Rename to... (tt_interpolate_deltas): ... This. Add new parameter for output point array. Update caller. (TT_Vary_Apply_Glyph_Deltas): Add `points_out' array; it now holds the intermediate results of `tt_interpolate_deltas' that are to be added to `outline->points'. 2016-07-15 Werner Lemberg <wl@gnu.org> * src/autofit/aflatin.c (af_latin_hints_compute_segments): Thinko. `max_pos' is always larger than `min_pos' so `FT_ABS' is not needed. Reported by Alexei. 2016-07-16 Nikolaus Waxweiler <madigens@gmail.com> * src/truetype/ttinterp.c (Ins_MIRP): Fix copy-and-paste error. Problem reported by Hin-Tak Leung. 2016-07-15 Werner Lemberg <wl@gnu.org> [autofit] Update and improve segment and edge tracing. * src/autofit/afhints.c (af_glyph_hints_dump_segments): Trace `delta' also. Don't show first point of segment as a replacement for `pos'; this is (a) misleading, since the difference to `pos' can be almost arbitrarily large in corner cases, and (b) it is better to have all segment data in font units instead of a single value given in output space coordinates. Improve layout. (af_glyph_hints_dump_edges): Show px->units and units->px conversion values for convenience. Improve layout. 2016-07-15 Werner Lemberg <wl@gnu.org> [autofit] For edges, reject segments wider than 1px (#41334). * src/autofit/afhints.h (AF_SegmentRec): New member `delta'. * src/autofit/aflatin.c (af_latin_hints_compute_segments): Compute `delta'. (af_latin_hints_compute_edges): Reject segments with a delta larger than 0.5px. 2016-07-14 Werner Lemberg <wl@gnu.org> * include/freetype/freetype.h (FT_IS_NAMED_INSTANCE): New macro. 2016-07-14 Werner Lemberg <wl@gnu.org> [sfnt] Fix `face_index' value in `FT_Face' for named instances. * src/sfnt/sfobjc.s (sfnt_init_face): Don't strip off higher 16bits. 2016-07-14 Werner Lemberg <wl@gnu.org> * src/truetype/ttgxvar.c (TT_Vary_Apply_Glyph_Deltas): Fix tracing. 2016-07-14 Behdad Esfahbod <behdad@behdad.org> [truetype] Fix gxvar delta interpolation. The coordinates of the base font should be used for interpolation purposes, NOT the current points (i.e., the result of accumulation of previous deltas). * src/truetype/ttgxvar.c (TT_Vary_Apply_Glyph_Deltas): Initialize `points_org' before looping over all tuples. ---------------------------------------------------------------------------- Copyright 2016 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: