kc3-lang/freetype/src
Branch :
Log
| Author | Commit | Date | CI | Message |
|---|---|---|---|---|
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3ce99005 | 2025-04-26 09:42:44 | * src/autofit/afranges.c: Updated to Unicode 16.0. But no support for new scripts (volunteers welcomed). | |
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08a13fe2 | 2025-04-26 08:31:17 | * src/autofit/afranges.c: Updated to Unicode 15.1. But no support for new scripts (volunteers welcomed). | |
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3019fa6c | 2025-04-26 08:09:15 | * src/autofit/afranges.c: Updated to Unicode 14.0. But no support for new scripts (volunteers welcomed). | |
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373aa744 | 2025-04-26 07:39:27 | * src/autofit/afranges.c: Updated to Unicode 13.0. But no support for new scripts (volunteers welcomed). | |
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12a9f65d | 2025-04-26 07:26:34 | * src/autofit/afranges.c: Updated to Unicode 12.0. But no support for new scripts (volunteers welcomed). | |
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1019b1c2 | 2025-04-22 06:20:22 | * src/autofit/afadjust.c (af_get_glyph_alternates): Fix endless loop. | |
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b5b3fd57 | 2025-04-20 10:48:54 | * src/afadjust.c: Fix test for newer HarfBuzz version (second try). | |
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05f3cf13 | 2025-04-20 10:29:32 | * src/afadjust.c: Fix test for newer HarfBuzz version. | |
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a64b49cc | 2025-04-20 08:00:26 | [autofit] Request at least HarfBuzz 7.2.0 for diacritic support. (3/3) This version (from April 2023) added 'SingleSubst' support to `hb_ot_layout_lookup_get_glyph_alternates`. | |
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de98b1ba | 2025-04-20 07:32:05 | [autofit] Speed up creation of the adjustment database's reverse map. (2/3) Remove the old code and activate the new one. | |
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573201be | 2025-04-20 06:27:52 | [autofit] Speed up creation of the adjustment database's reverse map. (1/3) As it turns out, the original implementation using `hb_ot_shape_glyphs_closure` is extremely slow if a font has a rich set of OpenType features. For example, this function was called 66954 times while loading font `arial.ttf` version 7.00, increasing FreeType's startup time by a factor of 10, which is unacceptable. The new algorithm uses a completely different, more low-level approach, no longer working with OpenType features but with OpenType lookups. It relies on function `hb_ot_layout_lookup_get_glyph_alternates`, also replacing recursion with a simple loop. In total, this brings the additional startup time back to an acceptable range of a few percent. A side effect of the new approach is that it catches more alternate forms: the old code didn't properly handle script-specific features. To make the change more readable, this commit only adds new code. | |
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9536e472 | 2025-04-18 06:31:51 | * src/autofit/afadjust.c (af_reverse_character_map_new): Check `map` limit. Reported as https://issues.chromium.org/issues/410925355 | |
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4fad257a | 2025-04-17 22:32:21 | * src/base/ftcalc.c (ft_corner_orientation) [!FT_INT32]: Fix up. | |
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d6c29228 | 2025-04-17 19:36:51 | [autofit] Don't access uninitialized memory. Reported as https://bugs.ghostscript.com/show_bug.cgi?id=708295 * src/autofit/aflatin.c (af_glyph_hints_apply_vertical_separation_adjustments): Initialize all array elements of `contour_y_minima` and `contour_y_maxima`. | |
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66e0d25e | 2025-04-17 15:37:27 | * src/truetype/ttinterp.c (TT_MulFix14,TT_DotFix14)[!FT_INT64]: Sync. | |
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9eecaa07 | 2025-04-17 12:44:37 | * src/truetype/ttinterp.c (TT_DotFix14): Silence UBSAN. | |
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0a650e8c | 2025-04-16 22:54:54 | * src/base/ftcalc.c: Miscellaneous cleanups. | |
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cc849c32 | 2025-04-16 19:39:02 | [autofit] Avoid crash. Reported as https://issues.oss-fuzz.com/issues/410811029 * src/autofit/aflatin.c (af_remove_segments_containing_point): Check `edge->last`. | |
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ccabe7ac | 2025-04-15 18:49:36 | [base, truetype] Silence UBSAN (cont'd). * src/truetype/ttinterp.c (TT_MulFix14, TT_DotFix14): Use MUL_INT64. * include/freetype/internal/ftcalc.c (FT_MulFix): Ditto. | |
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dc55f4e6 | 2025-04-14 21:03:08 | [autofit] Avoid unnecessary recomputation of HarfBuzz data. Call the functions once per font instead of once per glyph. * src/autofit/afadjust.c (af_all_glyph_variants): Move code to compute the `feature_tags` and `type_3_lookup_indices` sets to... (af_reverse_character_map_new): ...this function. | |
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d1ac9524 | 2025-04-14 15:48:33 | [autofit] Fix creation of the adjustment database's reverse map. Due to the way the reverse map array gets constructed with HarfBuzz, there might be multiple, identical glyph index entries with different character values in the array. As an example, an OpenType feature like 'unic' might map lowercase glyph 'ae' to uppercase glyph 'AE', in addition to the already present cmap entry for 'AE'. In most cases, this incorrect mapping is harmless (but still wrong). However, there exist some lowercase/uppercase character pairs where the diacritic for the uppercase character is on the other vertical side of the base character as for the lowercase character. An example is U+0122 (LATIN CAPITAL LETTER G WITH CEDILLA) and U+0123 (LATIN SMALL LETTER G WITH CEDILLA): the former has the cedilla below, the latter above. A wrong mapping would thus shift the base glyph 'G' up by a pixel instead of shifting the cedilla down. We fix this by always giving precedence to cmap entries. * src/autofit/afadjust.c (af_reverse_character_map_entry_compare): Do a secondary sort on the character code. (af_reverse_character_map_lookup): Adjust binary search to return the first occurrence of an entry (i.e., the one with the lowest array index). (af_reverse_character_map_new)[FT_CONFIG_OPTION_USE_HARFBUZZ]: Implement cmap priority. | |
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05797069 | 2025-04-14 09:22:10 | [autofit] Reduce adjustment database lookups. This is also in preparation for a follow-up commit. * src/autofit/afadjust.h (af_lookup_vertical_separation_type, af_lookup_tilde_correction_type): Replaced with... (af_adjustment_database_lookup, af_reverse_character_map_lookup): ... this. * src/autofit/afadjust.c (af_adjustment_database_lookup, af_adjustment_database_lookup): Updated. (af_lookup_vertical_separation_type, af_lookup_tilde_correction_type): Removed. (af_reverse_character_map_new)[FT_DEBUG_LEVEL_TRACE]: Updated. * src/autofit/aflatin.c (af_glyph_hints_apply_vertical_separation_adjustments, af_latin_hints_apply): Updated. | |
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233cdea8 | 2025-04-12 10:32:44 | * src/afadjust.c (adjustment_database): Make it complete up to U+017F. | |
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535498a0 | 2025-04-13 22:11:39 | * src/autofit/afadjust.c (af_reverse_character_map_new): Add tracing code. | |
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c34e551c | 2025-04-12 07:38:43 | * src/afadjust.c: Minor fixes. | |
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218c59a2 | 2025-04-11 07:38:03 | [autofit] Better vertical separation adjustment support. (2/2) * src/autofit/aflatin.c (af_glyph_hints_apply_vertical_separation_adjustments): Handle diacritics with more than a single contour. | |
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52d4573e | 2025-04-11 07:30:55 | [autofit] Better vertical separation adjustment support. (1/2) Test vertical maxima instead of vertical minima to identify the highest contour (and vice versa to identify the lowest contour). Doing so will allow support of diacritics that consist of more than a single outline. This works because of the topological constraints ensured by the adjustment database. * src/autofit/aflatin.c (af_find_highest_contour, af_glyph_hints_apply_vertical_separation_adjustments): Implement it. | |
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c6106cff | 2025-04-10 14:05:14 | [autofit] Use new y extrema arrays. * src/autofit/aflatin.c (af_glyph_hints_apply_vertical_separation_adjustments): Implement it. | |
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8d49ccd6 | 2025-04-10 09:44:58 | [autofit] Provide infrastructure for storing y extrema of contours. We need this for better positioning support of diacritics. * src/autofit/afhints.h (AF_GlyphHintsRec): New fields `contour_y_minima` and `contour_y_maxima`, together with its embedded variants. * src/autofit/afhints.c (af_glyph_hints_done, af_glyph_hints_reload): Handle new arrays. | |
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53a5e2e6 | 2025-04-15 06:58:52 | [autofit] Avoid crash. Reported as https://issues.oss-fuzz.com/issues/410609442 * src/autofit/aflatin.c (af_remove_segments_containing_point): Check `edge`. | |
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558bde6e | 2025-04-14 21:37:18 | [autofit] Fix just introduced heap buffer overflow Reported as https://issues.oss-fuzz.com/issues/410393975 * src/autofit/afadjust.c [!FT_CONFIG_OPTION_USE_HARFBUZZ]: Synchronize with HarfBuzz code. | |
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24ac6c5d | 2024-01-29 08:37:54 | [autofit] Add GSUB table handling to reverse character map generation. If HarfBuzz is enabled, the reverse character map generation now considers GSUB entries when looking for glyphs that correspond to a code point. * src/autofit/afadjust.c (af_all_glyph_variants_helper, af_all_glyph_variants) [FT_CONFIG_OPTION_USE_HARFBUZZ]: New functions. (af_reverse_character_map_new) [FT_CONFIG_OPTION_USE_HARFBUZZ]: Call new code. | |
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771449f1 | 2024-01-29 08:32:21 | [autofit] Add tilde-unflattening algorithm. * src/autofit/aflatin.c (af_find_highest_contour, af_remove_segments_containing_point, af_latin_remove_tilde_points_from_edges, af_latin_stretch_tilde, af_latin_align_tilde): New functions. (af_latin_hints_apply): Call tilde-unflatting code if necessary. | |
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7099b09e | 2024-01-29 08:21:09 | [autofit] Implement vertical separation adjustment. * src/autofit/aflatin.c: Include `afadjust.h`. (af_latin_metrics_init): Call `af_reverse_character_map_new`. (af_latin_metrics_done): New function. (af_move_contour_vertically, af_check_contour_horizontal_overlap, af_glyph_hints_apply_vertical_separation_adjustments): New functions. (af_latin_hints_apply): Call `af_glyph_hints_apply_vertical_separation_adjustments`. (af_latin_writing_system_class): Updated. * src/autofit/aftypes.h (AF_StyleMetricsRec): Add `reverse_charmap` field. | |
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14ac6140 | 2024-01-28 17:35:15 | [autofit] Add code for reverse charmaps and adjustment database lookup. * src/autofit/aftypes.h (AF_ReverseMapEntry, AF_ReverseCharacterMap): New structures. * src/autofit/afadjust.c (af_adjustment_database_lookup, af_reverse_character_map_entry_compare, af_reverse_character_map_lookup, af_lookup_vertical_separation_type, af_lookup_tilde_correction_type, af_reverse_character_map_expand, af_reverse_character_map_new, af_reverse_character_map_done): New functions. * src/autofit/afadjust.c: Updated. | |
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c46ebd76 | 2024-01-28 17:27:39 | [autofit] Add adjustment database. * src/autofit/afadjust.c, src/autofit/afadjust.h: New files. * include/freetype/internal/fttrace.h: Add 'afadjust' component. * src/autofit/autofit.c: Include `afadjust.c`. * src/autofit/rules.mk (AUTOF_DRV_SRC): Add `afadjust.c`. | |
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f0660df3 | 2024-01-28 07:38:41 | [base] Make `find_unicode_charmap` a base function. This is needed for forthcoming changes in the auto-hinter. * include/freetype/internal/ftobjs.h, src/base/ftobjs.c: Updated. | |
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6b6b643f | 2025-04-12 15:06:59 | * src/bdf/bdflib.c (hdigits): Removed. Fixes #1325. | |
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58b3598c | 2025-04-12 09:18:16 | Typos in macros. * include/freetype/internal/ftcalc.h: s/_M_X86/_M_IX86/. * src/truetype/ttinterp.c: s/_M_X86/_M_IX86/. | |
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c88bf8a2 | 2025-04-11 22:58:26 | [base, truetype] Silence UBSAN. * src/truetype/ttinterp.c (TT_MulFix14_64): Use unsigned multiplication. * include/freetype/internal/ftcalc.h (FT_MulFix_64): Ditto. | |
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fb99fd63 | 2025-04-11 22:57:27 | [base, truetype] Synchronize MulFix assembly. * include/freetype/internal/ftcalc.h (FT_MulFix_*), src/truetype/ttinterp.c (TT_MulFix14_*): Synchronize routines. | |
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91753736 | 2025-04-10 19:58:48 | [truetype] Modernize bytecode projections. With 64-bit platforms widely available, it is more efficient to use 64-bit variables readily. It results in noticeable 10% improvement in glyph loading speed. * src/truetype/ttinterp.c (TT_MulFix14, TT_DotFix14) [FT_INT64]: Prioritize available implementation with arguments adjusted based on the use cases. | |
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8f67545d | 2025-04-09 13:37:23 | [base] Update FT_MulFix inlining. Resolves inconsistencies in 64-bit multiplication discussed in !355. Importantly, FT_MulFix arguments and return value is FT_Long, whatever sizeof FT_Long is on 64-bit platforms: 8 bytes on Linux or 4 bytes on Windows. * include/freetype/internal/ftcalc.h (FT_MulFix_x86_64): Removed. (FT_MulFix_64): Generalize and prioritize the inline implementation for all 64-bit platforms ifdef FT_INT64. * src/base/ftcalc.c (FT_MulFix)[FT_INT64]: Call 'FT_MulFix_64'. * src/base/ftbase.c: Include 'ftcalc.c' after the FT_MulFix callers to enable its inlining. | |
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fc67794e | 2025-04-04 19:54:50 | Missing header wrappers. * include/freetype/config/integer-types.h, src/smooth/ftgrays.h: Add missing FT_BEGIN_HEADER and FT_END_HEADER. * src/smooth/ftgrays.c: Cosmetics. | |
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82090e67 | 2025-03-26 00:26:55 | [bdf] Clarify callback flow. * src/bdf/bdflib.c (bdf_line_func_t_): Modify callback prototype. (bdf_parse_*_): Updated. (bdf_load_font, bdf_readstream_): Delay callback initiation. | |
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7ede7324 | 2025-03-25 22:03:23 | * src/bdf/bdflib.c (bdf_readstream_): Relocate. | |
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56b53a86 | 2025-03-25 21:23:46 | * src/bdf/bdflib.c (bdf_is_atom_): Do not check tabs. | |
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7ddb53fc | 2025-03-25 21:22:52 | * src/bdf/bdflib.c (_bdf_strncmp): Macro removed, callers updated. | |
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d0c905c6 | 2025-02-24 19:13:39 | [sfnt/CPAL] Return early if user requested currently-set palette Before, we were loading a palette (again and again) even if the same was requested. Even if the font only had one palette... For a font like NotoColorEmoji that has over 5000 colors in its palette, this was dominating the COLRv1 loading times for HarfBuzz (and I believe all other clients) because they have to set the palette to get access to the colors. * src/base/ftcolor.c (FT_Palette_Select): Check the current palette. | |
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b1f47850 | 2025-01-28 22:49:21 | * src/bdf/bdflib.c (bdf_parse_start_): Move setup of properties. | |
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00a1567a | 2025-01-24 22:36:56 | [bdf] Treat all comments uniformly. * src/bdf/bdflib.c (bdf_parse_start_): Reject fonts with initial COMMENTs. (bdf_parse_properties_): Skip COMMENTs so that... (bdf_add_property_): Do not make exception for COMMENT. (bdf_parse_glyphs_, bdf_add_comments): Updated. | |
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fdae51cc | 2025-01-24 22:03:00 | * src/bdf/bdflib.c (BDF_SWIDTH_ADJ_): Remove clashing flag and update. | |
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bfe793cc | 2025-01-22 21:17:57 | * src/bdf/bdflib.c (bdf_atous_): Remove unnecessary checks. | |
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40a74585 | 2025-01-22 21:05:22 | * src/bdf/bdflib.c (bdf_ato{i.ul.s.us}_]): Remove uncecessary checks. | |
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56131e42 | 2025-01-22 20:47:56 | [bdf] Postpone font default char handling. * src/bdf/bdflib.c (bdf_parse_start_, bdf_add_property_): Delay handling of the default char until... * src/bdf/bdfdrivr.c (BDF_Face_Init): ... handles all other properties. | |
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8bae8706 | 2025-01-22 20:46:43 | [bdf] Postpone font spacing handling. * src/bdf/bdf.h (bdf_font_t): Remove `monowidth`. * src/bdf/bdflib.c (bdf_parse_start_, bdf_add_property_): Delay handling of the font spacing until... * src/bdf/bdfdrivr.c (BDF_Face_Init): ... handles all other properties. | |
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c0a7839e | 2025-01-22 19:11:47 | [bdf] Postpone font ascent and descent handling. * src/bdf/bdflib.c (bdf_parse_start_, bdf_add_property_): Delay handling of the font ascent and descent until... * src/bdf/bdfdrivr.c (BDF_Face_Init): ... handles all other properties. | |
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c33da8fb | 2025-01-22 16:59:44 | * src/bdf/bdflib.c (bdf_parse_start_): Relax the header order. We now check that the header is complete in no specific order. | |
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a059b237 | 2025-01-19 22:39:17 | * src/truetype/ttgxvar.c (tt_face_vary_cvt): Fix all shared values. Applying cvar deltas to all shared points was incorrectly omitted. Fixes #1314. | |
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b9e09e33 | 2025-01-19 12:35:13 | * src/bdf/bdflib.c (bdf_parse_glyphs_): Fix tracing. | |
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01c22b36 | 2025-01-19 11:19:10 | [bdf] Tokenize input instead of listing. Instead of cumbersome field list mamangement, we will tokenize input using custom `bdf_strtok_`. * src/bdf/bdflib.c (bdf_list_t_, bdf_list_init_, bdf_list_ensure_, bdf_list_shift_, bdf_list_join_, bdf_list_split_, bdf_set_default_spacing_): Removed. (bdf_strtok_): New function which NUL-terminates the first token at the delimiter position and returns the next token that follows consequtive delimiters. (bdf_parse_*_, bdf_load_font): Updated. * docs/CHANGES: Claim overall 75% performance improvement. | |
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ad7dce77 | 2025-01-17 20:54:14 | * src/bdf/bdflib.c (bdf_parse_start_): Prevent another STARTPROPERTIES. Only one STARTPROPERTIES was permitted in the old flow preventing leaks and overflows. See https://issues.oss-fuzz.com/issues/389968131 https://issues.oss-fuzz.com/issues/390464875 | |
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e3a3b39d | 2025-01-16 23:25:08 | * src/bdf/bdflib.c (bdf_parse_start_): Do not overwrite flags. | |
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d4631a2e | 2025-01-16 20:54:33 | * src/bdf/bdflib.c (bdf_readstream_): Skip all control characters. This agrees with specifications and makes the code a lot simpler. | |
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02953326 | 2025-01-16 03:47:14 | * src/bdf/bdflib.c (bdf_parse_start_): Reserve space for artificial properties. | |
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ae11e18c | 2025-01-15 15:50:12 | * src/bdf/bdflib.c (bdf_add_property_): Add extra protection. See https://issues.oss-fuzz.com/issues/389972472 https://issues.oss-fuzz.com/issues/389968131 | |
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a0d86e56 | 2025-01-14 22:58:04 | * src/bdf/bdflib.c: Clean up. | |
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a3c68e3b | 2025-01-14 22:32:46 | [bdf] Use flags instead of options. * src/bdf/bdf.h (bdf_options_t): Removed. (BDF_KEEP_COMMENTS, BDF_KEEP_UNENCODED, BDF_CORRECT_METRICS): Updated to avoid collisions with the other parsing flags. * src/bdf/bdfdrivr.c (BDF_Face_Init): Use default flags explicitly. * src/bdf/bdflib.c (bdf_load_font): Use flags as an argument to initialize the parser. (bdf_set_fedault_spacing_): Default to BDF_PROPORTIONAL explicitly. (bdf_parse_*_): Updated. | |
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a05c2210 | 2025-01-14 21:11:33 | [bdf] Adjust parsing flow and CHARS handling. * src/bdf/bdflib.c (bdf_readstream_): Remove CHARS exception. (bdf_parse_glyphs_): Move glyphs allocation... (bdf_parse_properties_): and missing ascent and descent handling... (bdf_parse_start_): ...to here under CHARS. | |
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0864367a | 2025-01-14 18:39:50 | * src/bdf/bdflib.c (bdf_readstream_): Tweak variables and loop design. | |
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ee1310ab | 2025-01-13 17:19:31 | * src/bdf/bdflib.c (bdf_parse_glyphs_): Free unused glyph_name. See https://issues.oss-fuzz.com/issues/389330334. | |
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f2199967 | 2025-01-13 03:48:28 | * src/bdf/bdflib.c (bdf_parse_glyphs_): Store glyph as soon as possible. | |
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aab40d5c | 2025-01-12 00:24:42 | * src/bdf/bdflib.c (bdf_parse_glyphs_): Avoid possible leak. | |
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bbc445e1 | 2025-01-11 23:11:07 | [bdf] Speed up bitmap parsing. A dedicated parser of bitmap data with minimal error checking and no string comparisons helps to improve performance. * src/bdf/bdflib.c (bdf_parse_bitmap_): New dedicated bitmap parser. (bdf_parse_glyphs_): Pass to `bdf_parse_bitmap_` on BITMAP. | |
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4433c7b7 | 2025-01-11 18:54:04 | * src/bdf/bdflib.c (a2i): Formatting. | |
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ff5872b4 | 2025-01-10 22:55:13 | * src/bdf/bdflib.c (bdf_parse_*_): Minor improvements. | |
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cf451e5f | 2025-01-10 22:31:07 | * src/bdf/bdf.h (bdf_font_t): Correct `internal` type. * src/bdf/bdflib.c (*): Update users. | |
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1f57020f | 2025-01-10 03:23:41 | * src/bdf/bdflib.c (bdf_parse_start_): Fix tracing labels. | |
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73318c86 | 2025-01-08 15:45:32 | [cff] Remove size/slot checks. After the previous commit, cff_glyph_load is no longer called without first checking for valid size and glyph objects in FT_Glyph_Load and these checks can be removed downstream. * src/cff/cffdrivr.c (cff_glyph_load): Remove `size` and `glyph` checks. * src/cff/cffgload.c (cff_slot_load): Ditto. | |
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c7a255b4 | 2025-01-07 19:52:29 | * src/cff/cffdrivr.c (cff_get_advances): Do only fast advances. Otherwise, let TT_Get_Advances fall back on cff_load_glyph to do slow advances. This avoids unchecked access to cff_load_glyph and this is how tt_get_advances is implemented. | |
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81330e1f | 2025-01-03 22:54:20 | * src/truetype/ttgload.c (TT_Load_Glyph): Consolidate flag setting. | |
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5245fd69 | 2025-01-03 21:26:10 | Delay FT_GLYPH_FORMAT_OUTLINE assignmets. This assignmets used to be done prematurely before errors were checked and outlines were actually loaded. Delaying the assignment provides certain protection against careless usage of malformed input that should now remain FT_GLYPH_FORMAT_NONE. * src/cff/cffgload.c (cff_slot_load): Ditto. * src/cid/cidgload.c (cid_slot_load_glyph): Ditto. * src/pfr/pfrobjs.c (pfr_slot_load): Ditto. * src/truetype/ttgload.c (TT_Load_Glyph): Ditto. * src/type1/t1gload.c (T1_Load_Glyph): Ditto. | |
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64f8b7fb | 2025-01-02 18:22:24 | Remove superfluous outline zeroing. This is already done by `ft_glyphslot_clear`. * src/cff/cffgload.c (cff_slot_load): Do not zero outline fields. * src/cid/cidgload.c (cid_slot_load_glyph: Ditto. * src/pfr/pfrobjs.c (pfr_slot_load): Ditto. * src/truetype/ttgload.c (load_sbit_image): Ditto. * src/type1/t1gload.c (T1_Load_Glyph): Ditto. | |
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10b3b14d | 2025-01-01 23:04:14 | * src/truetype/ttobjs.c: Abbreviate tracing. | |
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1beb83fd | 2025-01-01 22:28:36 | * src/sfnt/ttsbit.c (tt_face_load_sbix_image): Refactor `flip`. | |
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abed051e | 2025-01-01 14:40:58 | [truetype] Consolidate bitmap strike handling. * src/truetype/ttgload.c (TT_Load_Glyph): Relocate omitted whitespace strike handling from here... (load_sbit_image): ... to here. | |
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4ef8eed1 | 2024-12-31 16:25:50 | [truetype] Ingnore FT_LOAD_NO_BITMAP in bitmap-only fonts. For consistency with other bitmap-only fonts, we should ignore this flag of the font is not scalable. * src/truetype/ttgload.c (TT_Load_Glyph): Check if face is scalable when checking for FT_LOAD_NO_BITMAP. * docs/CHANGES: Start new chapter wtith this change. | |
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38272bf8 | 2024-12-16 14:29:36 | [ftstroke] Fix invalid pointer assignement to `arc` In `FT_Stroker_ConicTo` and `FT_Stroker_CubicTo` there is a `bez_stack`. `arc` is initialized with `arc = bez_stack` and is never set to point into any different object. The main loop looks like `while ( arc >= bez_stack )` which is depending on a later `arc -= 2` (or `arc -= 3`) to make `arc` point to before `bez_stack`. However, using pointer subtraction to make `arc` point outside the array is undefined behavior, and attempting to use the value in the loop predicate is "very" undefined behavior. (C99 "Additive operators" 6.5.6.8.) This particular undefined behavior was discovered as either hangs or MemorySantizer issues after "[InstCombine] Infer nuw for gep inbounds from base of object" [0]. With this change, clang can infer that `arc` must always point into the `bez_stack` object and therefore cannot be at a "negative index" so the predicate is always true. [0] https://github.com/llvm/llvm-project/commit/e21ab4d16b555c28ded307571d138f594f33e325 * src/base/ftstroke.c (FT_Stroker_ConicTo, FT_Stroker_CubicTo): test loop exit condition (there are no more arcs to process) before decrementing `arc` Fixes: #1307 | |
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59320b2d | 2024-12-04 16:55:10 | [cff] Fix leak of cmap data When `sfnt->load_face` succeeds it has already loaded any (optional) cmap data. As a result, a subsequent call to `sfnt->load_cmap` will overwrite the cmap data pointer with a new copy of the data but not free the old, leading to a leak. This is a fix for "* src/cff/cffobjs.c (cff_face_init): Better handling of Type0 fonts.". This still allows the cmap to be missing but avoids the leak by only calling `sfnt->load_cmap` when there is no `head` table (the font data is not being loaded as OpenType/CFF). * src/cff/cffobjs.c (cff_face_init): Fix leak Fixes: #1306 | |
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3f3e3de3 | 2024-11-06 06:28:41 | * src/cff/cffobjs.c (cff_face_init): Better handling of Type0 fonts. This issue relates to the PDF specification and its usage of CFF-based embedded Type0 fonts. For Type0 fonts containing CID-keyed descendant CFF-based fonts, the glyph index is the CID present in the content stream. As a result, there is no requirement for a 'cmap' table to be present in the font since the glyph indices are derived directly from the CIDs. FreeType throws an error when it doesn’t find a 'cmap' table for such an Open Type font containing CFF outlines. This commit relaxes this requirement for a 'cmap' table for such fonts. | |
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13944366 | 2024-10-15 18:07:55 | Move generic destroy to later in the face and size destruction. * src/base/ftobjs.c (destroy_size, destroy_face): This is such that the generic destroy can be used to call `FT_Done_Library`. For that to work, it needs to call it *after* having removed the face from the respective module. | |
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f02bffad | 2024-10-14 11:47:31 | * src/truetype/ttgload.c (load_truetype_glyph): Rearrange. | |
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089ccb1b | 2024-10-13 12:14:43 | * src/smooth/ftgrays.c (gray_convert_glyph): Clear stack pointers. Fixes a dangling pointer warning, see #1299. | |
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5f20c892 | 2024-10-13 10:20:42 | apinames: Fix a buffer overrun for VMS platform. Some output formats may rewrite symbol names during the output, like the concatenation of "64__" suffix on VMS. To estimate sufficient size to store symbol name, pass the output format info to `names_add`. For VMS, `names_add` allocates longer buffer to append "64__". * apinames.c (SUFFIX_VMS_64ADDR): New macro of "64__". (main): Pass the format info to `read_header_file`. (read_header_file): Pass the format info to `names_add`. (names_add): Receive the format info, and reserve the symbol name buffer 4 byte longer in the case of VMS, to append the suffix in `names_dump`. | |
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26b545f3 | 2024-10-13 11:09:40 | apinames: Fix out-of-scope reference of a static array. * apinames.c (names_dump): For WATCOM_LBC format, the DLL name with no suffix is constructed on a static array temp[], but the scope is closed before use it. The declaration of temp[] is moved to the wider scope for the dumping part to refer it. | |
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0dd4eef6 | 2024-10-10 15:56:22 | Fix help message of apinames. * src/tools/apinames.c: The first header file must be given after the options. All arguments after the first header file are dealt as header files to be parsed, regardless with their leading "-". For example, "apinames include/freetype/freetype.h -dFREETYPE.DLL" warns "unable to open -dFREETYPE.DLL". Thus, the "header1" must be given after the arguments to be parsed as the options. | |
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83af801b | 2024-09-07 13:44:57 | * src/sfnt/ttsbit.c (tt_face_load_sbix_image): Respect metrics_only. Also fixes recursive flip. | |
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30080320 | 2024-09-06 13:43:47 | * src/sfnt/ttsbit.c (tt_face_load_sbix_image): Tweak loop. | |
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98283cb3 | 2024-09-06 17:03:58 | [sfnt] Support sbix graphicType 'flip'. * src/sfnt/ttsbit.c (tt_face_load_sbix_image): Currently undocumented by Apple, this flips the bitmap data horizontally. It is used on macOS in Apple Color Emoji; 19.4d6e1; 2024-02-05 (file `Apple Color Emoji.ttc`). Fixes issue #1282. | |
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d2612e1c | 2024-08-26 07:01:19 | * src/sfnt/ttcmap.c (tt_cmap*_get_info): Remove casting. |