kc3-lang/freetype/src
Branch :
Log
| Author | Commit | Date | CI | Message |
|---|---|---|---|---|
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f6370e2f | 2021-06-25 22:59:39 | [raster] Adjust sub-band bisecting limits. We can bisect a band until it is just a single scan line. This might be slow and cause time-outs but if we need to impose limits it should be elsewhere. * src/raster/ftraster.c (Render_Single_Pass): Tweak sub-banding. | |
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bc1029b9 | 2021-06-25 18:20:57 | * src/raster/ftraster.c (Render_Single_Pass): Remove dead code. | |
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1e0cef9e | 2021-06-24 00:19:50 | [smooth, raster] Fix up and align error codes. FT_Render_Glyph picked up FAILURE or 1 returned from the raster function, which became a confusing error code. Instead, return Raster_Overflow in the unlikely event that banding does not help or another meaningful error. * src/smooth/ftgrays.c (gray_convert_glyph_inner, gray_convert_glyph): Use Raster_Overflow when the rendering pool is exhausted and return it if banding does not help. (gray_raster_render): Use Smooth_Err_Ok. * src/raster/ftraster.c (Render_Single_Pass): Return Raster_Overflow if banding does not help or another error code. | |
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d8ac180c | 2021-06-23 23:32:02 | [smooth, raster] Remove synonymous error macros. * src/smooth/ftgays.c [STANDALONE_]: s/ErrRaster_/Smooth_Err_/. (gray_convert_glyph_inner): Updated accordingly. * src/raster/ftraster.c [STANDALONE_]: Do not abbreviate error macros. (New_Profile, End_Profile, Insert_Y_Turn, Line_Up, Bezier_Up, Decompose_Curve, Draw_Sweep, Render_Single_Pass, ft_black_render): Updated accordingly. | |
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4cb21b9a | 2021-06-22 20:50:48 | [sfnt] s/PaintTransformed/PaintTransform/, s/transformed/transform/. * include/freetype/ftcolor.h (FT_PaintTransformed, FT_PaintFormat, FT_COLR_Paint): Do it to make it harmonize with other names such as 'PaintTranslate'. * src/sfnt/ttcolr.c (read_paint, tt_face_get_paint): Ditto. | |
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008e42a1 | 2021-06-19 15:45:46 | ftver.rc: Update copyright year. | |
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b460a506 | 2021-06-19 07:03:40 | [truetype] Fix integer overflow. Reported as https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35312 * src/truetype/ttinterp.c (Ins_JMPR): Use `ADD_LONG`. | |
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232243e7 | 2021-06-19 06:32:29 | Prevent hinting if there are too many segments. This speeds up handling of broken glyphs. Reported as https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35309 * src/autofit/aflatin.c (af_latin_hints_compute_segments): Implement it. | |
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61bac759 | 2021-06-18 17:38:00 | * src/sdf/ftsdfrend.c (ft_(b)sdf_render): Do not FT_ERROR routinely. | |
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f8c5c546 | 2021-06-16 09:54:49 | Fix for issue 1063 See https://gitlab.freedesktop.org/freetype/freetype/-/issues/1063 for more details on the bug. | |
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c6fcd612 | 2021-06-15 22:49:21 | Add a comment. | |
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8336d53c | 2021-06-12 22:33:08 | [type42] Fix new memory leak. We need to inverse inheritance of FT_GlyphSlot_Internal so that we have a chance to free the rendered bitmap from the parent slot. * src/type42/t42objs.c (T42_GlyphSlot_Init): Remove the internal parts of the child `ttslot' and replace it with the parent structure. (T42_GlyphSlot_Done): Updated accordingly. | |
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db0f2c44 | 2021-06-12 10:05:07 | [psaux] Fix another assertion. * src/psaux/psintrp.c (cf2_interpT2CharString) <cf2_escCALLOTHERSUBR>: Convert assertion into error, since the problem can happen with invalid user input. Test case is file fuzzing/corpora/legacy/oss-fuzz/5754332360212480-unknown-read in the `freetype2-testing` repository. | |
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a34afe67 | 2021-06-12 08:40:16 | [psaux] Fix assertions. * src/psaux/pshints.c (cf2_hintmap_adjustHints): Check for overflow before emitting an assertion error. | |
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9bfecfd2 | 2021-06-09 23:34:04 | * src/truetype/ttinterp.c (TT_RunIns): Optimize tracing. | |
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7833e308 | 2021-06-09 10:40:30 | [sdf] Fix SDF positioning. * src/sdf/ftsdfrend.c (ft_sdf_render, ft_bsdf_render): Add padding to `bitmap_top' and `bitmap_left'. * sdf/sdf/ftsdf.c (sdf_generate_with_overlaps): Fix VC++ warning. | |
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08f66322 | 2021-06-08 18:23:16 | More various documentation improvements and fixes. | |
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b24cfc8d | 2021-06-08 15:26:41 | [sfnt] Sanitize cmap4 table better. Fixes #1062. * src/sfnt/ttcmap.c (tt_cmap4_validate): Handle a too-small value of `length` gracefully. | |
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ee6d03d3 | 2021-06-08 14:29:11 | [sfnt] Pointer validity check when reading COLR 'v1' layers * src/sfnt/ttcolr.c (tt_face_get_paint_layers): In addition to the existing sanity checks, ensure that the pointer to the layer to be read is within the 'COLR' v1 table. | |
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41fa19fc | 2021-06-08 10:32:20 | * src/sdf/ftsdfcommon.c: Fix inclusion of header files. | |
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35b21c71 | 2021-06-08 09:06:39 | [sdf] Make `make multi` work. * src/sdf/ftsdf.c: Include `ftbitmap.h`. * src/sdf/ftsdfcommon.h: Move function bodies to `ftsdfcommon.c`. Include `ftobjs.h` to get definitions of `FT_LOCAL` and friends. * src/sdf/ftsdfcommon.c: New file. * src/sdf/rules.mk, src/sdf/sdf.c: Updated. | |
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36ee7171 | 2021-06-08 09:00:39 | [sdf] Formatting and improved comments. | |
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2b1d5562 | 2021-06-08 08:29:34 | [sdf] Use 8 bits for final SDF output instead of 16bits. Since 8-bits is enough to represent SDF data we no longer require 16-bits for this purpose. Also, we now normalize the output data to use the entire 8-bit range efficiently. For example: if we use 3.5 format with a spread of 1 we basically only use the starting 5-bits. By normalizing we can use the entire 8-bit range. * include/freetype/freetype.h (FT_Render_Mode): Updated description for `FT_RENDER_MODE_SDF` regarding this change. * include/freetype/ftimage.h (FT_Pixel_Mode): Removed `FT_PIXEL_MODE_GRAY16` since no longer required. * include/freetype/fttypes.h (FT_F6Dot10): Removed since no longer required. * src/sdf/ftsdfrend.c (ft_sdf_render, ft_bsdf_render): Allocate 8-bit bitmap instead of 16-bit buffer. * src/sdf/ftsdfcommon.h (map_fixed_to_sdf): Added function to convert 16.16 distance value to our desired format. * src/sdf/ftsdf.c (sdf_generate_with_overlaps, sdf_generate_bounding_box): Use the new `map_fixed_to_sdf` function and also use 8-bit output buffer. * src/sdf/ftbsdf.c (finalize_sdf): Output to a 8-bit buffer instead of 16-bit buffer. | |
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2a6665a4 | 2021-06-01 15:25:31 | [sfnt] Fix fallout from 2021-05-29 change. * src/sfnt/ttcolr.c (find_base_glyph_record, find_base_glyph_v1_record): Adjust binary search. Needs to be updated with change to unsigned. | |
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7ca7da9d | 2021-06-02 06:59:01 | * src/autofit/aflatin.c (af_latin_metrics_scale_dim): Fix tracing. Problem reported by Alexei. | |
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0abbc9f5 | 2021-06-02 06:36:11 | [psaux] Fix MSVC compiler warnings. * src/psaux/afmparse.c (afm_parse_track_kern, afm_parse_kern_pairs): Add cast. | |
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6e253b26 | 2021-05-29 11:05:41 | Typos in previous commit. | |
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a50c39aa | 2021-05-29 09:50:29 | Fix compilation errors and (some) warnings for clang++. * src/autofit/afmodule.c (AF_GlyphHintsRec): Make it static. * src/cache/ftcache.c (FTC_Cache_NewNode), src/cache/ftcsbits.c (ftc_snode_compare): Remove semicolon. * src/cff/cffparse.c (cff_parser_run): Add `break` statement. * src/cid/cidload.c (cid_hex_to_binary): Add cast. * src/sdf/ftbsdf.c (CHECK_NEIGHBOR): Use `do {} while(0)` loop. (bsdf_init_distance_map, finalize_sdf, bsdf_raster_render): Add casts. * src/sdf/ftsdf.c (sdf_generate_bounding_box, sdf_generate_with_overlaps): Ditto. * src/sdf/ftsdfcommon.h (square_root): Ditto. * src/sdf/ftsdfrend.c (sdf_property_get, ft_sdf_render, ft_bsdf_render): Ditto. * src/sfnt/ttcolr.c (find_base_glyph_record, find_base_glyph_v1_record): Fix variable signedness. (read_color_line): Add cast. (read_paint): Add casts. Fix signedness issue. (tt_face_get_colorline_stops) Fix signedness issues. * src/sfnt/ttpost.c (load_format_20): Add casts. * src/truetype/ttsubpix.c (TWEAK_RULES, TWEAK_RULES_EXCEPTIONS): Remove final semicolons. | |
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28eee363 | 2021-05-27 11:38:56 | [type42] Fix auto-hinting. The autohinter could not access the base (unscaled) outline in the child TrueType glyph slot. We now share the internal parts between the parent and child glyph slots. Fixes #1057. * src/type42/t42objs.c (T42_GlyphSlot_Init): Remove the internal parts of `T42_GlyphSlot' and replace it with the child TrueType structure. (T42_GlyphSlot_Done): Updated accordingly. | |
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0d1c306e | 2021-05-25 11:27:56 | [psaux] Guard and trace AFM kern data allocation. Reported as https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=31543 * include/freetype/internal/fttrace.h: Add 'afmparse' trace component. * src/psaux/afmparse.c (FT_COMPONENT): Define. (afm_parse_track_kern, afm_parse_kern_pairs): Protect against allocations bombs. Add tracing. (afm_parse_kern_data): Don't allow multiple kern data sections. | |
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2468e59a | 2021-05-20 22:20:36 | [type42] Avoid some memory zeroing. * src/type42/t42objs.c (T42_Open_Face): Tweak allocation macro. * src/type42/t42parse.c (t42_parse_sfnts): Ditto. | |
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06e21ffe | 2021-05-18 14:49:50 | [gzip] Use exact type for `ft_gzip_alloc` and `ft_gzip_free`. While a function pointer may be cast to another function pointer type, it is required to cast the function pointer back to the original function pointer type before calling it. If a parameter is a pointer the exact pointer type is required. Using a pointer to a different underlying type is technically undefined behavior. The wrapper functions `ft_gzip_alloc` and `ft_gzip_free` took `FT_Memory` (a `FT_MemoryRec_*`) instead of `voidpf` (`void*`), so when gzip calls these callbacks through `alloc_func` or `free_func` it invokes undefined behavior. On most platforms this works out as expected, but newer undefined behavior detectors and targets like wasm can detect this and will produce an error. * src/gzip/ftgzip.c (ft_gzip_alloc, ft_gzip_free): Update signatures to exactly match `alloc_func` and `free_func`, respectively. Internally, cast the `void*` opaque pointer to `FT_Memory`. | |
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1bc801b0 | 2021-05-16 23:12:01 | [sfnt] Additional guards on the POST table. Fixes timeout (#1055) analyzed by Ben Wagner, reported as https://crbug.com/1194092 * src/sfnt/ttload.c (tt_face_load_post): Check POST format. * src/sfnt/sfobjs.c (sfnt_load_face): Synthesize the missing unicode charmap only if the glyph names exist. * src/psnames/psmodule.c (ps_unicode_value): Short cut ".notdef" and ".null". | |
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de151657 | 2021-05-13 23:08:31 | [psaux] Use doubling allocation strategy for CF2_ArrStack. Fixes timeout reported as https://crbug.com/1206181 * src/psaux/psarrst.c (cf2_arrstack_{push,init}): Implement it. * src/psaux/psarrst.h (CF2_ArrStackiRec): Drop `chunk'. | |
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2d3f5dd2 | 2021-05-12 17:24:35 | * src/smooth/ftgrays.c (FT_MAX_GRAY_SPANS): Increase from 10 to 16. Ten was barely enough for two slanted stems. Sixteen can actually fit a bit more complicated scanlines. | |
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c653b8d2 | 2021-05-12 16:17:21 | * src/smooth/ftgrays.c (FT_GRAY_SET): Adjust for better code. | |
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8f43d324 | 2021-05-12 00:04:59 | [smooth] Faster bitmap sweeping. Selecting the fill rule or checking the direct mode each time we call `gray_hline' is sub-optimal. This effectively splits the direct mode into a separate code path while inlining `gray_hline' and saving 5-7% of rendering time. * src/smooth/ftgrays.c (gray_hline): Eliminated in favor of... (FT_FILL_RULE, FT_GRAY_SET): ... these new macros... (gray_sweep): ... inlined here. (gray_sweep_direct): New function that handles the direct span buffer. (gray_TWorker): Remove the span buffer. (gray_raster_render, gray_convert_glyph): Updated. | |
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b0702645 | 2021-05-10 22:06:01 | * src/smooth/ftgrays.c (gray_hline): Simplify even-odd computations. It is too bad the even-odd rule is not used much. | |
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967a34ee | 2021-05-07 19:17:48 | [type1] Avoid MM memory zeroing. * src/type1/t1load.c (t1_allocate_blend, parse_blend_design_map): Tweak allocation macros. * src/type1/t1objs.c (T1_Face_Done): Minor. | |
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2f62d8e0 | 2021-05-07 09:33:41 | * src/bdf/bdflib.c (_bdf_list_ensure): Tweak allocation macro. | |
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79ed536d | 2021-05-06 23:46:46 | * src/psaux/psobjs.c (ps_parser_load_field): Tweak allocation macro. | |
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44c59414 | 2021-05-06 22:54:03 | * src/sfnt/sfobjs.c (sfnt_load_face): Tweak allocation macro. | |
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998c7c0f | 2021-05-06 22:51:37 | * src/cid/cidload.c (cid_read_subrs): Tweak allocation macro. | |
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2d957848 | 2021-05-06 22:49:13 | * src/base/ftrfork.c (FT_Raccess_Get_DataOffsets): Tweak allocation. | |
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8150ed0d | 2021-05-05 23:30:46 | [cff,psaux] Avoid memory zeroing (contd.). * src/cff/cffload.c (cff_blend_doBlend, cff_blend_build_vector): Tweak allocation macros. * src/psaux/psarrst.c (cf2_arrstack_setNumElements): Ditto. * src/psaux/psstack.c (cf2_stack_init): Ditto. | |
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82fd32d6 | 2021-05-03 13:49:14 | * src/cid/cidload.c (cid_hex_to_binary): Improve return value. Add argument to return the actual number of bytes that were decoded. The actual number of bytes decoded can be quite variable depending on the number of ignored 'whitespace' bytes or early termination with `>`. (cid_face_open): Updated to use this calculated value. This avoids trusting `parser->binary_length` is always be correct and reading uninitialized bits if fewer are actually decoded. First reported as https://crbug.com/1203240 | |
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66630d88 | 2021-05-03 22:40:16 | [sfnt] Streamline POST format 2.0 handing. To reduce memory allocations, we read an entire Pascal-string buffer and convert it to a C-string buffer. We also reject tables with Postscript glyph names exceeding 63 bytes. * src/sfnt/ttpost.c (load_format20): Implement it. (load_post_names): Check the minimal POST table size. (load_format25, tt_face_free_ps_names): Updated accordingly. | |
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ec95f9c9 | 2021-05-02 18:30:22 | [bdf,pcf] Avoid memory zeroing (contd.). * src/bdf/bdflib.c (bdf_create_property, _bdf_add_comment, _bdf_add_property, bdf_load_font): Tweak allocation macros. * src/pcf/pcfread.c (pcf_get_properties, pcf_get_metrics): Ditto. | |
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d911cb53 | 2021-05-01 23:49:11 | * src/cid/cidload.c (cid_read_subrs): Tweak allocaton macro. | |
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dc42f826 | 2021-05-01 12:46:44 | [sfnt] Avoid some memory zeroing. * src/sfnt/sfobjs.c (sfnt_open_font, sfnt_init_face, tt_name_ascii_from_{utf16,other}): Tweak allocaton macros. * src/sfnt/ttload.c (tt_face_load_name): Ditto. | |
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b8968d66 | 2021-05-01 12:24:44 | * src/sfnt/ttpost.c (load_format_{20,25}): Tweak allocaton macros. | |
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2583b608 | 2021-05-01 09:22:26 | * src/sfnt/pngshim.c (Load_SBit_Png): Tweak allocaton macro. | |
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56ae9430 | 2021-05-01 09:14:04 | [truetype] Avoid some memory zeroing. * src/truetype/ttinterp.c (Init_Context): Tweak allocation macro. * src/truetype/ttpload.c (tt_face_load_cvt): Ditto. | |
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c177cc35 | 2021-05-01 09:09:52 | [woff2] Avoid some memory zeroing. * src/sfnt/sfwoff2.c (store_loca, woff2_open_font): Tweak macros. | |
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4e1c6a12 | 2021-04-30 09:35:21 | * src/gzip/ftgzip.c (ft_gzip_alloc): Zero out memory again. | |
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f631542d | 2021-04-27 11:39:58 | [lzw] Preserve decompression stack when relocating to heap. * src/lzw/ftzopen.c (ft_lzwstate_stack_grow): Copy stack when relocating to heap. | |
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c213c8a9 | 2021-04-27 08:54:19 | * src/cid/cidgload.c (cid_load_glyph): Restore the glyph_length check. | |
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2ec6feaf | 2021-04-27 13:28:35 | * src/psmodule.c (ps_unicodes_init): Ignore empty glyph names. Reported as https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=33637 | |
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caff87b1 | 2021-04-26 22:45:40 | * src/sfnt/sfobjs.c (sfnt_init_face): Revert macro change. | |
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8750e843 | 2021-04-26 17:21:51 | [cff] Avoid some memory zeroing. * src/cff/cffparse.c (cff_parser_init): Tweak memory macro. * src/cff/cffload.c (cff_index_load_offsets, cff_index_get_pointers, cff_charset_load, cff_vstore_load): Ditto. | |
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618d0834 | 2021-04-26 17:14:28 | [pfr] Avoid some memory zeroing. * src/pfr/pfrobjs.c (pfr_face_init) : Tweak memory macro. * src/pfr/pfrload.c (pfr_extra_item_load_stem_snaps, pfr_phy_font_load): Ditto. | |
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b0a28197 | 2021-04-26 17:10:28 | * src/winfonts/winfnt.c (FNT_Face_Init): Tweak memory macro. | |
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deee5b70 | 2021-04-26 17:07:44 | [psaux,psnames] Avoid some memory zeroing. * src/psaux/psstack.c (cf2_stack_init): Tweak memory macro. * src/psnames/psmodule.c (ps_unicodes_init): Ditto. | |
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270ff52f | 2021-04-25 23:40:59 | [base] Avoid some memory zeroing. * src/base/ftrfork.c (FT_Raccess_Get_DataOffsets): Use FT_QNEW_ARRAY. * src/base/ftsnames.c (FT_Get_Sfnt_{Name,LangTag}): Ditto. | |
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c2d28314 | 2021-04-25 23:33:15 | [bdf,pcf] Avoid some memory zeroing. * src/pcf/pcfread.c (pcf_read_TOC, pcf_get_properties, pcf_load_font): Tweak memory macros. * src/bdf/bdfdrivr.c (BDF_Face_Init): Ditto. * src/bdf/bdflib.c (_bdf_readstreami, bdf_create_property, _bdf_parse_glyphs, _bdf_parse_start): Ditto. (_bdf_add_property): Do not handle zero size. | |
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c78f78fa | 2021-04-24 22:38:48 | * src/cff/cffload.c (cff_index_get_pointers): s/FT_QALLOC/FT_ALLOC/. | |
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0bd5d95d | 2021-04-23 22:04:05 | * src/base/ftobjs.c (Mac_Read_POST_Resource): s/FT_ALLOC/FT_QALLOC/. * builds/mac/ftmac.c (FT_New_Face_From_SFNT, read_lwfn): Ditto. | |
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e6e5b67d | 2021-04-23 21:33:03 | * src/sdf/ftsdf.c (sdf_{edge,contour,shape}_new): Use FT_QALLOC. | |
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6ada59ab | 2021-04-23 19:22:51 | [sfnt] s/FT_ALLOC/FT_QALLOC/ for initialized buffers. * src/sfnt/sfdriver.c (get_win_string, get_apple_string, sfnt_get_var_ps_name): Do not zero out the buffer. * src/sfnt/sfobjs.c (sfnt_init_face): Ditto. * src/sfnt/sfwoff.c (woff_open_font): Ditto. * src/sfnt/sfwoff2.c (woff2_open_font): Ditto. | |
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ec9e5114 | 2021-04-23 14:03:03 | [cff,type1,type42] s/FT_ALLOC/FT_QALLOC/ for initialized buffers. * src/cff/cffload.c (cff_index_get_pointers, cff_index_get_name): Do not zero out the buffer. * src/cff/cffdrivr.c (cff_ps_get_font_info): Ditto. * src/type1/t1load.c (parse_subrs, parse_charstrings, parse_blend_axis_types): Ditto. * src/type1/t1parse.c (T1_New_Parser, T1_Get_Private_Dict): Ditto. * src/type42/t42parse.c (t42_parser_init): Ditto. | |
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baa0f71d | 2021-04-23 13:48:34 | [cid] s/FT_ALLOC/FT_QALLOC/ and clean up. * src/cid/cidgload.c (cid_load_glyph): Do not zero out the buffer. * src/cid/cidload.c (cid_face_open, cid_read_subrs): Ditto. | |
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b3438ccb | 2021-04-23 08:35:02 | [pfr] s/FT_ALLOC/FT_QALLOC/ for initialized buffers. * src/pfr/pfrload.c (pfr_extra_item_load_font_id, pfr_aux_name_load): Do not zero out the buffer. | |
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1e525c62 | 2021-04-23 08:24:22 | [bzip2,gzip] s/FT_ALLOC/FT_QALLOC/ for initialized buffers. * src/bzip2/ftbzip2.c (ft_bzip2_alloc): Do not zero out the buffer. * src/gzip/ftgzip.c (ft_gzip_alloc, FT_Stream_OpenGzip): Ditto. | |
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a0fb6dbc | 2021-04-23 00:05:18 | [pcf,bdf,winfonts] s/FT_ALLOC/FT_QALLOC/ for initialized buffers. * src/pcf/pcfread.c (pcf_interpret_style): Do not zero out the buffer. * src/bdf/bdfdrivr.c (bdf_interpret_style): Ditto. * src/winfonts/winfnt.c (FNT_Face_Init, FNT_Load_Glyph): Ditto. | |
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23f85c8a | 2021-04-22 23:34:08 | [cache] Optimize SBit copying. * src/cache/ftcsbits.c (ftc_snode_load): Do not initialize the buffer. (ftc_sbit_copy_bitmap): Accept zero size, s/FT_ALLOC/FT_QALLOC/. | |
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93715ab2 | 2021-04-22 23:07:01 | [gxvalid,otvalid] s/FT_ALLOC/FT_QALLOC/ for initialized buffers. * src/gxvalid/gxvmod.c (gxv_load_table): Do not zero out the buffer. * src/otvalid/otvmod.c (otv_load_table): Ditto. | |
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90b97a83 | 2021-04-22 23:00:40 | [psaux] s/FT_ALLOC/FT_QALLOC/ for initialized buffers. * src/psaux/psobjs.c (ps_table_done, ps_parser_load_field): Do not zero out the buffer. | |
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44b1ebe5 | 2021-04-22 22:34:05 | [base] s/FT_ALLOC/FT_QALLOC/ for initialized buffers. * src/base/ftobjs.c (open_face_PS_from_sfnt_stream, Mac_Read_sfnt_Resource): Do not zero out the buffer. * src/base/ftmac.c (FT_New_Face_From_SFNT, read_lwfn): Ditto. * src/base/ftrfork.c (raccess_make_file_name, raccess_guess_darwin_hfsplus, raccess_guess_darwin_newvfs): Ditto. | |
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8a459e51 | 2021-04-20 22:53:13 | [cache] Restore SBit copying for unowned (BDF) bitmaps. * src/cache/ftcsbits.c (ftc_sbit_copy_bitmap): Restore. (ftc_snode_load): Check ownership and copy unowned bitmaps. | |
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361465de | 2021-04-20 22:31:28 | Bitmap tracing. | |
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e662a950 | 2021-04-19 12:49:16 | [sfnt] Return in 'COLR' v1 when layer pointer outside table * src/sfnt/ttcolr.c (tt_face_get_paint_layers): Add missing return when paint pointer outside table. (read_paint): Add missing return when paint pointer outside table. | |
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7c685cb3 | 2021-04-18 22:31:13 | [cache] Switch to lazy SBit setting. * src/cache/ftcsbits.c (ftc_sbit_copy_bitmap): Removed. (ftc_snode_load): Take the bitmap ownership instead of copying. | |
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2e68785e | 2021-04-17 09:00:40 | * src/cache/ftcsbits.c (ftc_snode_load): Properly handle short pitch. | |
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7f8a1edd | 2021-04-16 12:35:29 | [sfnt] Safeguard 'COLR' v1 layer extraction * src/sfnt/ttcolr.c (tt_face_get_paint_layers): Do not output layer pointer to iterator if it is outside the 'COLR' table. (read_paint): Do not attempt to read layers that are outside the table. | |
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f9350be1 | 2021-04-01 09:44:00 | [base] Complete `ft_glyphslot_clear`. * src/base/ftobjs.c (ft_glyphslot_clear): This function is intended to reset all the values of a glyph slot. However, it was not resetting the values of the advances and `glyph_index`. Reset the advances and `glyph_index` to zero. | |
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52f2a008 | 2021-04-01 09:33:47 | Update TT_New_Context documentation In commit 531d463aed365b [truetype] Allocate TT_ExecContext in TT_Size instead of TT_Driver. the `TT_ExecContext` was moved from being on the driver to being on the size to make it easier to use FreeType in a multi-threaded environment. However, the documentation for `TT_New_Context` was not updated and still reflects the old behavior and parameter list. This change updates `TT_New_Context` documentation to reflect the current parameters and usage. | |
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369d8be9 | 2021-03-31 22:31:44 | [truetype] Prevent glyph program state from persisting. `FDEF` instructions are specified as allowed only in 'prep' or 'fpgm'. FreeType has attempted to prevent their use in the glyph program, but they were still allowed in glyph programs if defined in a function defined in 'prep' or 'fpgm' and called from the glyph program. Similarly, `IDEF` instructions are specified not to be able to modify any existing instruction. FreeType has attempted to prevent their use in the glyph program, but they can still be used like `FDEF`. This change stores the initial bytecode range type and disallows the use of `FDEF` and `IDEF` while running the glyph program. Most other state is copied from the `TT_Size` into the execution context. However, it is possible for a glyph program to use `WS` to write to the storage area or `WCVTP`, `WCVTF`, and `DELTAC[123]` to write to the control value table. Allowing any change to the global state from the glyph program is problematic as the outlines of any given glyph may change based on the order the glyphs are loaded or even how many times they are loaded. There exist fonts that write to the storage area or the control value table in the glyph program, so their use should not be an error. Possible solutions to using these in the glyph program are * ignore the writes; * value-level copy on write, discard modified values when finished; * array-level copy on write, discard the copy when finished; * array-level copy up-front. Ignoring the writes may break otherwise good uses. A full copy up-front was implemented, but was quite heavy as even well behaved fonts required a full copy and the memory management that goes along with it. Value-level copy on write could use less memory but requires a great deal more record keeping and complexity. This change implements array-level copy on write. If any attempt is made to write to the control value table or the storage area when the initial bytecode range was in a glyph program, the relevant array will be copied to a designated storage area and the copy used for the rest of the glyph program's execution. * src/truetype/ttinterp.h (TT_ExecContextRec): New fields `iniRange`, `glyfCvtSize`, `glyfCvt`, `origCvt`, `glyfStoreSize`, `glyfStorage`, and `origStorage`. * src/truetype/ttinterp.c (Modify_CVT_Check): New function to handle `exc->glyfCvt`. (Write_CVT, Write_CVT_Stretched, Move_CVT, Move_CVT_Stretched): Use it. (Ins_WS): Handle `exc->glyfStorage`. (Ins_FDEF, Ins_IDEF): Updated. (TT_RunIns): Updated. (TT_Done_Context): Free 'glyf' CVT working and storage area. (TT_Load_Context): Fix/add casts. * src/truetype/ttgload.c (TT_Load_Simple_Glyph): Fix cast. | |
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1c086293 | 2021-04-02 06:55:29 | [sfnt] Check validity of pointer location of `read_color_line`. * src/sfnt/ttcolr.c (get_child_table_pointer): New function to fetch child table pointer early for all paint formats that compute a child table pointer. (read_color_line, read_paint): Updated. (tt_face_get_colorline_stops): Check `colr->table`. | |
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e9c50fa7 | 2021-03-16 22:12:41 | * src/sfnt/pngshim.c (Load_SBit_Png): Free `rows` once later. | |
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b0729b8f | 2021-03-15 14:32:24 | [sfnt] Fix memory leak in png loading. Reported as https://bugs.chromium.org/p/chromium/issues/detail?id=1182552 Memory is allocated and the pointer assigned to `rows` inside a 'setjmp' scope. This memory must be freed outside the 'setjmp' scope after a 'longjmp'. Since `rows` is a local and modified inside the 'setjmp' scope it must be marked volatile or it will have an indeterminate value after the 'longjmp'. * src/sfnt/pngshim.c (Load_SBit_Png): Fix memory leak of `rows`. | |
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fb9bf2ef | 2021-03-15 22:33:17 | * src/smooth/ftgrays.c (gray_set_cell): Refactor to fix VC++ warning. | |
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2149b51f | 2021-03-13 19:08:09 | Handle various VC++ compiler warnings. Fixes #1039. * src/base/ftstroke.c (ft_stroker_inside, ft_stroker_outside): Initialize `sigma`. * src/sdf/ftsdf.c (sdf_generate_with_overlaps): Exit immediately if function arguments are invalid. * src/sdf/ftsdfrend.c (sdf_property_set) <"overlaps">: Fix cast. * src/sfnt/sfwoff2.c (woff2_decompress) [!FT_CONFIG_OPTION_USE_BROTLI]: Use `FT_UNUSED`. * src/truetype/ttgxvar.c (TT_Get_MM_Var): Initialize `fvar_head`. | |
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80bda804 | 2021-03-11 22:40:19 | [smooth] Reduce copying during integration phase. We now record `cover' and `area' directly into the linked list. This makes rendering faster by 10% or even more at larger sizes. * src/smooth/ftgrays.c (FT_INTEGRATE): Write directly. (gray_TWorker): Add direct cell reference and remove unused fields. (gray_set_cell): Consolidate the linked list management and pointers. (gray_convert_glyph, gray_convert_glyph_inner): Updated. | |
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d5b7de55 | 2021-03-11 22:08:45 | * src/smooth/ftgrays.c (FT_INTEGRATE): New convenience macro. (gray_render_line, gray_render_scanline): Use it. | |
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85168499 | 2021-03-09 22:14:44 | * src/smooth/ftgrays.c (gray_render_line): Rearrange conditionals. These produce faster or more optimizable code. | |
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7227aabb | 2021-03-04 06:41:30 | Revert "[sfnt] Fix crash in `Load_SBit_Png` on Windows x64." This reverts commit dbf9142f7e0432c9ed618b3276e2b61fa39e7262, as discussed in #1037. | |
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dbf9142f | 2021-02-25 15:07:25 | [sfnt] Fix crash in `Load_SBit_Png` on Windows x64. This change fixes a crash that occurs in `Load_SBit_Png` when running on a 64-bit Windows OS. A memory access violation exception would be raised by `setjmp` if the `jmp_buf` is not aligned to a 16-byte memory boundary. This is due to setjmp executing `movdqa` instructions to store 128-bit XMM registers to memory, which require correct memory alignment. This problem occurs because `png_create_read_struct` uses `malloc` and `free` for memory management, which only guarantees 8-byte alignment on Windows. Instead, to fix the problem, `png_create_read_struct_2` is used on 64-bit Windows, which allows for user-defined memory allocation and deallocation callbacks to be specified. These callbacks forward the allocation and deallocation requests to `_aligned_alloc` and `_aligned_free`, ensuring that the allocated `png_struct` and internal `jmp_buf` have the requisite 16-byte alignment. * src/sfnt/pngshim.c <_WIN64>: Include `malloc.h`. (malloc_callback, free_callback) <_WIN64>: New functions. (Load_SBit_Png) <_WIN64>: Use `png_create_read_struct_2` instead of `png_create_read_struct` | |
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e1f364e5 | 2021-02-25 20:00:07 | [woff2] Fix memory leak. Reported as https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=28148 * src/sfnt/sfwoff2.c (woff2_open_font): Reject fonts that have multiple tables with the same tag. While not explicitly forbidden in the OpenType specification, it is implicitly forbidden by describing a binary search algorithm for tables that only works reliably if table tags are unique. | |
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92bd99bd | 2021-02-16 14:07:18 | Move 'dlg' submodule to `subprojects` directory. This is for future changes with Meson, which doesn't allow a different name for its `subprojects` directory. Having both a `submodules` and a `subprojects` directory is confusing. * .gitmodules, autogen.sh (copy_submodule_files, DLG_INC_DIR, DLG_SRC_DIR): Updated. * builds/toplevel.mk (<top-level>, do-dist), builds/windows/vc2010/script.bat: Updated. * src/tools/no-copyright: Updated. | |
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215ae253 | 2021-02-16 12:53:45 | [sfnt] Update paint format values to support non-variable paints. * freetype.h (FT_PaintFormat): Update paint format identifiers after a specification change. The specification was updated to have sibling formats, variable and non-variable variants for each. Reflect that here. * sfnt/ttcolr.c (read_paint): Remove parsing of variable indices as the non-variable formats no longer have them. |