kc3-lang/freetype/src/truetype
Branch :
Log
| Author | Commit | Date | CI | Message |
|---|---|---|---|---|
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764bc8e4 | 2023-03-15 23:18:18 | [truetype] Clean up glyph loading. * src/truetype/ttgload.c (TT_Load_Simple_Glyph): Clean space checking. (TT_Hint_Glyph): Don't copy the outline structure. (TT_Process_Simple_Glyph): Cosmetic update. | |
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e7164762 | 2023-03-15 18:48:27 | * src/truetype/ttgload.c (TT_Load_Simple_Glyph): Clean up. | |
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b9376065 | 2023-03-10 23:41:39 | [truetype] Fix recent fallout in memory management. * src/truetype/ttgload.c (TT_Process_Composite_Glyph, TT_Load_Simple_Glyph): Clean up old instructions regardless of new ones, postpone setting `control_len` and `control_data` until... (TT_Load_Glyph): ... the exit from this function. | |
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49c74ac0 | 2023-03-09 22:37:03 | * src/truetype/ttgload.c (TT_Hint_Glyph): Mostly cosmetic update. The number of instructions is now taken from the executed context. Technically, this means that `control_len` and `control_data` values are no longer _used_ internally but only expose them. | |
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b3250f36 | 2023-03-06 23:53:42 | * src/truetype/ttgload.c (TT_Process_Composite_Glyph): Fix leak too. | |
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b36193d0 | 2023-03-06 22:41:17 | * src/truetype/ttgload.c (TT_Load_Simple_Glyph): Triage memory leak. This leak has been introduced in the previous commit and immediately detected: https://chromium-review.googlesource.com/c/chromium/src/+/4313202 | |
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de94e2cb | 2023-02-26 08:07:08 | [truetype] Simplify memory management. Instead of using `Update_Max`, switch to regular FreeType memory allocation macros, stop pre-allocating the glyph instruction arrays. * src/truetype/ttgload.c (TT_Load_Simple_Glyph, TT_Process_Composite_Glyph): Switch to regular memory allocation. * src/truetype/ttinterp.c (Update_Max): Removed. (TT_Load_Context): Reallocate stack and free old instructions. (Modify_CVT_Check, Ins_WS): Switch to regular memory allocation. * src/truetype/ttinterp.h (Update_Max): Removed. | |
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638df2fe | 2023-02-27 21:54:23 | [truetype] Treat 38 as 40 without Infinality. * include/freetype/ftdriver.h (TT_INTERPRETER_VERSION_38): Reinstate. * src/truetype/ttdriver.c (tt_property_set): Fallback from 38 to 40. | |
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d399657f | 2023-02-26 20:18:54 | * src/*: Replace leading underscores with trailing ones in dummy variables. This is to avoid clang warnings. | |
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be724c81 | 2023-02-07 22:24:53 | For debugging, avoid implicit conversion from integer to double. Otherwise we get zillions of clang 15 warnings. * src/autofit/afcjk.c, src/autofit/afhints.c, src/autofit/aflatin.c, src/base/ftobjs.c, src/base/ftoutln.c, src/cff/cffparse.c, src/raster/ftraster.c, src/sfnt/pngshim.c, src/truetype/ttgload.c, src/truetype/ttgxvar.c, src/truetype/ttobjs.c, src/type1/t1gload.c: Use `double` cast in debugging and tracing macros. | |
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37bc7c26 | 2023-02-07 07:37:07 | Avoid reserved identifiers that are globally defined. This is mandated by the C99 standard, and clang 15 produces zillions of warnings otherwise. * devel/ftoption.h, include/freetype/config/ftoption.h, include/freetype/internal/ftmemory.h, src/autofit/afhints.h, src/autofit/afmodule.c, src/autofit/aftypes.h, src/base/ftadvanc.c, src/base/ftdbgmem.c, src/base/ftstream.c, src/bdf/bdflib.c, src/truetype/ttinterp.c: Replace identifiers of the form `_foo` with `foo_`. | |
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da9eb9c7 | 2023-02-07 07:01:36 | Fix minor clang and clang++ warnings. | |
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4c3916e9 | 2023-02-08 14:58:46 | [truetype, type1] Additional variation tags. Sync with https://learn.microsoft.com/en-us/typography/opentype/spec/dvaraxisreg#registered-axis-tags * src/truetype/ttgxvar.h (TTAG_ital): New tag. * src/truetype/ttgxvar.c (TT_Get_MM_Var): Use it. * src/type1/t1load.c (T1_Get_MM_Var): Handle 'slnt' and 'ital'. | |
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9508811a | 2023-02-01 12:01:58 | * src/truetype/ttgxvar.c (tt_var_get_item_delta): Check `face->blend`. Reported as https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=55581 | |
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bacc48e6 | 2023-01-28 17:04:11 | Whitespace. | |
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bea675cd | 2023-01-26 14:07:25 | [ttgxvar] Fix crash in COLRv1. This is a stopgap until issue #1202 is properly fixed. * src/truetype/ttxgvar.c (tt_var_get_item_delta): Check `normalizedcoords`. | |
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65f85237 | 2023-01-17 09:18:25 | Update all copyright notices. | |
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2692b321 | 2023-01-03 17:19:02 | [sfnt] Remove temporary runtime flag for variable 'COLR' v1. Fixes #1187. * src/sfnt/ttcolr.c (top level, read_paint, tt_face_load_colr, tt_face_free_colr, get_deltas_for_var_index_base, tt_face_get_color_glyph_clipbox, tt_face_get_colorline_stops): Remove macro definition `VARIABLE_COLRV1_ENABLED` and its usage. * src/truetype/ttdriver.c (tt_property_set): Remove parsing of 'TEMPORARY-enable-variable-colrv1' property name. * src/truetype/ttobjs.h (TT_DriverRec): Remove `enable_variable_colrv1` flag. | |
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3481b154 | 2023-01-05 21:07:26 | [truetype] Reset cvt and storage in context load. Currently the cvt and storage are saved and restored in `TT_RunIns`. However, this is too granular as the cvt and storage area should be set to the original cvt and storage area only when setting up the hinting context. This allows for the cvt and storage area to be modified while parsing multiple glyphs, as is the case with composite glyphs. * src/truetype/ttinterp.h (TT_ExecContextRec): Remove `origCvt` and `origStorage`. * src/truetype/ttinterp.c (TT_RunIns): Don't save and restore the cvt and storage area. (Modify_CVT_Check, Ins_WS): Switch from "if in glyph and using original data do copy on write" to "if in glyph and not using glyph specific data do copy on write". | |
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262b47ac | 2023-01-05 15:24:25 | [truetype] Keep variation store consistent. `tt_var_load_item_variation_store` fills out a `GX_ItemVarStore`. While it may return an error, the item store must be left in a consistent state so that any use or destruction of the item store can properly use or free the data in it. Before this change the counts from the font data were read directly into the item store before the actual allocation of the arrays to which they referred. There exist many opportunities between the time the counts are read and the arrays are allocated to return early due to invalid data. When this happened the item store claimed to have entires it actually did not, leading to crashes later when it was used. Fixes: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=54449 * src/truetype/ttgxvar.c (tt_var_load_item_variation_store): Read the counts into local variables and store them in the item store only after the related arrays are actually created on the item store. | |
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e6fda039 | 2022-11-14 19:18:19 | * src/truetype/ttgxvar.c (tt_hvadvance_adjust): Integer overflow. Reported as https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=50462 | |
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ba4bd5b9 | 2022-11-07 10:52:33 | Add `TT_CONFIG_OPTION_NO_BORING_EXPANSION` configuration macro. This gives users a possibility to deactivate new features not (yet) in the OpenType standard. * include/freetype/config/ftoption.h, devel/ftoption.h (TT_CONFIG_OPTION_NO_BORING_EXPANSION): New macro. * src/truetype/ttgxvar.c (ft_var_load_avar): Use it to disable 'avar' version 2.0 support. | |
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e97cb9e8 | 2022-11-09 15:42:25 | [truetype] Improve bounds checks for `ItemVariationStore`. * src/truetype/ttgxvar.c (tt_hvadvance_adjust): Move bounds check ... (tt_var_get_item_delta): ... to this function, because it is safer. For example, the 'avar' table 2.0 codepath was not performing a bounds check at all. | |
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9be958ca | 2022-11-09 15:41:34 | [truetype] In `ItemVariationStore`, value 0xFFFF for `dataCount` is valid. It corresponds to outer indices of 0 to 0xFFFE. * src/truetype/ttgxvar.c (tt_var_load_item_variation_store): Remove invalid code. | |
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9154707f | 2022-11-07 16:58:56 | [truetype] Check avar_segment before access * src/truetype/ttgxvar.c (tt_done_blend): check `avar_segment` before accessing to free its `correspondence`. Reported as: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=53062 | |
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d38407f7 | 2022-11-07 15:11:37 | [truetype] Restore behavior of ft_var_load_hvvar * src/truetype/ttgcvar.c (ft_var_load_hvvar): restore previous behavior In a previous change [0] the behavior of `ft_var_load_hvvar` was changed to not load the item variation store if it was at offset 0, but not return an error when this happened. This broke any users, like `tt_hvadvance_adjust`, that rely on successful completion of `ft_var_load_hvvar` to imply that returned table's `itemStore` had been initialized. This lead such users to dereference NULL. This change appears to have been unintentional and unrelated to the actual avar2 changes. As a result, fix these NULL dereferences by restoring the code to always attempt to initialize the `itemStore`. [0] ae4eb996 "[truetype] Add support for `avar` table 2.0 format." Reported as https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=53061 | |
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32cfab4b | 2022-10-10 14:22:12 | [build] fix for make multi Fix "make multi" by MR !223 * include/freetype/internal/services/svmm.h: include ftmm.h to define FT_Get_MM_Func. * src/truetype/ttgxvar.h: include ftmmtypes.h to use GX_AVarTable properly. * src/base/ftmac.c: include ftdebug.h to use FT_THROW() properly. | |
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ae4eb996 | 2022-07-23 13:49:27 | [truetype] Add support for `avar` table 2.0 format. See https://github.com/harfbuzz/boring-expansion-spec/blob/main/avar2.md for the specification. Currently, this is implemented only in most recent OS versions on Apple platforms and in the HarfBuzz library, but it is expected to be added to the OpenType standard soon. * src/truetype/ttgxvar.h (GX_AVarTableRec): New structure. (GX_BlendRec): Use it to replace `avar_segment` with `avar_table`. * src/truetype/ttgxvar.c (ft_var_load_avar): Load new table version. (ft_var_to_normalized, tt_done_blend): Extend for new format. (ft_var_load_hvvar, ft_var_to_design): Updated. | |
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ffbbf3df | 2022-10-21 15:55:30 | * src/truetype/ttgload.c: Cosmetic changes. | |
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1bfaca06 | 2022-10-21 07:18:06 | [cff, truetype] Simplify SVG metrics scaling. Use pre-calculated scaling factors. Also, the advance widths used to be rounded, which was incorrect. * src/cff/cffgload.c (cff_slot_load): Use `x_scale` and `y_scale`. * src/truetype/ttgload.c (TT_Load_Glyph): Ditto. | |
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c943d408 | 2022-10-18 11:41:00 | Minor formatting. | |
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90527092 | 2022-09-29 18:38:06 | [truetype] Fix undefined pointer arithmetic. * src/truetype/ttgxvar.c (tt_var_get_item_delta, ft_var_load_mvar): Use `FT_OFFSET`. | |
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8e68439a | 2022-09-06 15:57:11 | [truetype] Reject 'fvar' loading when `num_instances` is too small. * src/truetype/ttgxvar.c (TT_Get_MM_Var): Reject retrieving master when 'fvar' values locally do not match with sanitized values from initialization at `sfnt_init_face` time. Reported as https://bugs.chromium.org/p/chromium/issues/detail?id=1360295 | |
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a1017e26 | 2022-08-19 19:07:42 | [sfnt] Don't require 'gvar' table to support variation fonts. Fixes #1172. * src/sfnt/sfobjs.c (sfnt_load_face): Tag font as Multiple Masters font if `fvar` is present; do not require other tables to be present. * src/truetype/ttgxvar.c (tt_set_mm_blend): Allow for a missing 'gvar' table when setting variation coordinates. However, if a 'gvar' table is actually present, do perform a sanity check and fail on malformedness. (TT_Get_MM_Var): Don't assume 'fvar' needs 'gvar' or 'CFF2 tables in all cases, which is an overly tight check. | |
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de27955c | 2022-07-01 06:33:50 | Minor formatting. | |
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dece9535 | 2022-06-29 11:48:53 | [truetype] Perform variation store delta computation with 64-bit precision. * include/freetype/internal/ftmmtypes.h (FT_ItemVarDelta): Make type explicitly 32-bit. * include/freetype/internal/services/svmm.h (FT_Var_Get_Item_Delta_Func): Change return type to `FT_ItemVarDelta` * truetype/ttgxvar.h (tt_var_get_item_delta): Change return type to `FT_ItemVarDelta`. * truetype/ttgxvar.c (tt_var_get_item_delta): Store scalars and deltas to intermediate array, perform computation using new method `FT_MulAddFix`. | |
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9006ff7d | 2022-06-21 17:10:56 | * ttgload.c (TT_Process_Composite_Glyph): Fix a signedness warning. | |
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4b6f92e6 | 2022-06-01 13:24:09 | Proposal: Feature control for variable COLRv1 * include/freetype/ftdriver.h (variable-color-v1 property): Add documentation for variable-colr-v1 property. * src/truetype/ttdriver.c (tt_property_set): Ingest variable-control property when called, set to enable_variable_colrv1 driver flag. * src/truetype/ttobjs.h (TT_DriverRec): Add enable_variable_colrv1 flag. | |
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47103b2f | 2022-06-18 23:09:17 | [truetype] Clean up phantom point accounting. This formalizes that the phantom points appended in the outline do not increase its point count, nor are they tagged or included in any additional contours. Only their coordinates are stored. They are counted in the glyph zone, however. * src/truetype/ttgxvar.c (TT_Vary_Apply_Glyph_Deltas): Infer `n_points` from the outline size plus four phantom points. * src/truetype/ttgxvar.h (TT_Vary_Apply_Glyph_Deltas): Remove this argument. * src/truetype/ttgload.c (tt_prepare_zone): Add phantom four. (TT_Process_Simple_Glyph, load_truetype_glyph): Update all callers. | |
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705f4161 | 2022-06-18 23:02:26 | [truetype/GX] Clean up phantom point adjustment. This moves phantom point and advance variation adjustment next to calculations. The logic stays the same, HVAR and VVAR take priority. * src/truetype/ttgload.c (load_truetype_glyph): Move it from here... * src/truetype/ttgxvar.c (TT_Vary_Apply_Glyph_Deltas): ... to here and check for HVAR and VVAR presence outside the main loop. | |
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d9b8a69e | 2022-06-16 22:13:25 | [truetype/GX] Fix an old typo. * src/truetype/ttgxvar.c (TT_Vary_Apply_Glyph_Deltas): Vertical advance is measured along y-coordinate. | |
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9c706dcc | 2022-06-16 16:11:51 | [truetype/GX] Clean up advance adjustment (Brrr). * src/truetype/ttgload.c (load_truetype_glyph): Remove remaining code. | |
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d6fc8c6b | 2022-06-15 18:28:50 | [truetype/GX] Clean up advance adjustment. * src/truetype/ttgload.c (TT_Process_Simple_Glyph, load_truetype_glyph): Move the advance adjustment from here... * src/truetype/ttgxvar.c (TT_Vary_Apply_Glyph_Deltas): ... to here and simplify arguments. * src/truetype/ttgxvar.h (TT_Vary_Apply_Glyph_Deltas): Update prototype with fewer arguments. | |
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b11074cf | 2022-06-06 15:59:56 | [svg] Set linear advances when loading SVG glyphs * include/freetype/freetype.h (FT_GlyphSlotRec_): update doc * src/cff/cffgload.c (cff_slot_load): do it * src/truetype/ttgload.c (TT_Load_Glyph): do it Fixes: #1156 | |
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7838c78f | 2022-05-20 17:22:25 | [truetype] Support reading 32bit/16bit VarStore deltas * include/freetype/internal/ftmmtypes.h (FT_ItemVarDelta): Define type to be used for delta arrays, upgrade to FT_long. * src/truetype/ttgxvar.c: Adhere to long_words bit and read either Short/Byte pairs or Long/Short pairs, as defined by spec. For better readability, define macro for repetitive read code. | |
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9aa99f22 | 2022-05-20 17:20:08 | [truetype] Handle 0xFFFF special value inside delta retrieval function * truetype/ttgxvar.c (tt_hvadvance_adjust, tt_apply_mvar, tt_var_get_item_delta): Remove special 0xFFFF handling in favor of less redundant handling inside the tt_var_get_item_delta function, as it is equivalent to returning a 0 delta. Avoids code-duplication checking for special value 0xFFFF. | |
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a4c4566b | 2022-05-19 06:30:47 | [truetype, snft] Add service methods for `DeltaSetIdxMap` and `VarStore`. This will be needed for 'COLR' v1 variation support. * src/truetype/ttgxvar.h (GX_ItemVarData, GX_AxisCoords, GX_VarRegion, GX_VarItemStore, GX_DeltaSetIdxMap): Move structures to... * include/freetype/internal/ftmmtypes.h: ... this new file. * include/freetype/internal/service/svmm.h (MultiMasters): Include `ftmmtypes.h`. (FT_Var_Load_Delta_Set_Idx_Map_Func, FT_Var_Load_Item_Var_Store_Func, FT_Var_Get_Item_Delta_Func, FT_Var_Done_Item_Var_Store_Func, FT_Var_Done_Delta_Set_Idx_Map_Func): New function typedefs. (MultiMasters): Add them. (FT_DEFINE_SERVICE_MULTIMASTERSREC): Updated. * src/cff/cffdrivr.c (cff_load_item_variation_store, cff_load_delta_set_index_mapping, cff_get_item_delta, cff_done_item_variation_store, cff_done_delta_set_index_map): New wrapper methods calling into mm service. (cff_service_multi_masters): Updated. * src/truetype/ttgxvar.c (ft_var_load_item_variation_store, ft_var_load_delta_set_index_mapping, ft_var_get_item_delta, ft_var_done_item_variation_store, ft_var_done_delta_set_index_map): Renamed to ... (tt_var_load_item_variation_store, tt_var_load_delta_set_index_mapping, tt_var_get_item_delta, tt_var_done_item_variation_store, tt_var_done_delta_set_index_map): ... this for consistency. Mark them as non-static. * src/truetype/ttgxvar.h: Add corresponding prototypes. * src/truetype/ttdriver.c (tt_service_gx_multi_masters): Updated. * src/type1/t1driver.c (t1_service_multi_masters): Updated. | |
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5f19f49c | 2022-05-13 15:43:06 | [truetype] Move deallocation of `DeltaSetIdxMap` into own function. This is a preparation for handling `DeltaSetIdxMap` and `VarStore` as a FreeType service. * src/truetype/ttgxvar.c (ft_var_done_delta_set_index_map): New function. (tt_done_blend): Use it. | |
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5d49473f | 2022-05-11 18:15:02 | [truetype] Handle inner/outer index values 0xFFFF/0xFFFF. This was introduced in OpenType 1.8.4. * src/truetype/ttgxvar.c (ft_var_load_delta_set_index_mapping, tt_hvadvance_adjust, ft_var_load_mvar, tt_apply_mvar): Handle special inner/outer index values. (ft_var_load_item_variation_store): Add test. Fixes #1154. | |
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581dd064 | 2022-04-25 08:03:08 | [truetype] Reset IUP flags in `TT_RunIns`. Fixes #1148 by moving the flag initialization back, partly reverting 7809007a and fd03dcc1. Initializing these flags elsewhere skips 'cvt'. * src/truetype/ttinterp.c (TT_RunIns): Initialize the IUP flag here... (TT_Run_Context): ... instead of here. | |
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079a22da | 2022-04-19 09:28:21 | * src/truetype/ttgload.c (TT_Process_Simple_Glyph): Integer overflow. Reported as https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=46792 | |
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695d606a | 2022-04-01 08:50:33 | Whitespace. | |
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d247c562 | 2022-03-31 18:54:15 | [truetype] Use SUB_LONG for component offset. * src/truetype/ttgload.c (TT_Process_Composite_Component): do it. Bug: https://crbug.com/1309429 | |
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ac4c1ebf | 2022-02-07 06:55:54 | [truetype] Fix 'sbix' table handling. * src/sfnt/ttsbit.c (tt_face_load_sbix_image): Correct calculation of 'metrics->horiBearingY'. Set vertical metrics. * src/sfnt/sfobjs.c (sfnt_load_face): Adjust setting of `FT_FACE_FLAG_SBIX`. Handle metrics of fonts with 'sbix' table. * src/truetype/ttgload.c (TT_Load_Glyph): For 'sbix' embedded bitmaps, apply bbox offset and bearing values of the corresponding glyph in the 'glyf' table if it exists and has a contour. * src/truetype/ttobjs.c (tt_face_init): Handle font with 'sbix' table. Fixes issue #998. | |
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24db55ec | 2022-02-05 09:06:39 | Various minor doc fixes. | |
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bee88864 | 2022-01-30 21:55:21 | Clean-up - do not doubt FT_FREE. * src/base/ftobjs.c (memory_stream_close): Do not reassign zero after `FT_FREE`. * src/sfnt/sfwoff.c (sfnt_stream_close): Ditto. * src/sfnt/sfwoff2.c (stream_close): Ditto. * src/psaux/psobjs.c (ps_parser_load_field): Ditto. * src/truetype/ttgxvar.c (ft_var_load_avar, tt_set_mm_blend, tt_set_mm_blend): Ditto. | |
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b34741c1 | 2022-01-27 22:55:34 | Minor clean-ups. * src/base/ftrfork.c (raccess_make_file_name): Do not set error. * src/sfnt/sfdriver.c (get_win_string, get_apple_string): Ditto. * src/cff/cffobjs.c (cff_strcpy): Do not confuse about error. * src/psaux/psobjs.c (ps_table_done): Ditto. * src/truetype/ttgxvar.c (ft_var_readpacked*, ft_var_load_avar): Ditto. | |
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5cf01aa2 | 2021-12-25 19:46:46 | [truetype, cff] Add code to load SVG document. * src/cff/cffgload.c (cff_slot_load): Add code to load SVG doc. * src/truetype/ttgload.c (TT_Load_Glyph): Add code to load SVG doc. | |
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d0cfb4e1 | 2022-01-11 10:54:10 | Update all copyright notices. | |
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afb4ca01 | 2022-01-06 12:54:15 | [truetype] Reset localpoints when varying cvt. When iterating over the cvt tuples and reading in the points it is necessary to set all of `localpoints`, `points`, and `point_count` in all cases. The existing code did not reset `localpoints` to `NULL` when there were no private point numbers. If the previous tuple did have private point numbers and set `localpoints` to `ALL_POINTS` this would not be cleared and the wrong branch would be taken later, leading to possible heap buffer overflow. * src/truetype/ttgxvar.c (tt_face_vary_cvt): Reset `localpoints` to `NULL` when it isn't valid. Fixes: https://crbug.com/1284742 | |
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0da2a115 | 2021-12-13 11:44:24 | [truetype] Upstream the hdmx binary search. * src/truetype/ttobjs.h (TT_SizeRec): Add `widthp` for the hdmx widths. * src/truetype/ttobjs.c (tt_size_reset): Initialize `widthp` even though it might never be used by the interpreter. * src/truetype/ttgload.c (tt_loader_init): Avoid repeated searches in the hdmx table. | |
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fd03dcc1 | 2021-12-12 12:29:04 | [truetype] Reset the IUP-called flags for each subglyph. This fixes fall-out from 7809007a5b88b15, where the composite accents were no longer hinted. * src/truetype/ttgload.c (ttloader_init): Move the IUP-called flag initialization from here... * src/truetype/ttinterp.c (TT_Run_Context): ... to here. | |
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7add5b2b | 2021-12-11 22:54:06 | [truetype] Binary search through the `hdmx` records. The `hdmx` table is supposed to be sorted by ppem size, which enables binary search. We also drop the check for the sufficient length of the record because it is now enforced when the table is loaded. * include/freetype/internal/tttypes.h (TT_FaceRec): Store the `hdmx` record pointers sorted by ppem instead of ppem's themselves. * src/truetype/ttpload.c (tt_face_load_hdmx): Prudently sort records. (tt_face_get_device_metrics): Implement binary search to retrieve advances. | |
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a8ef33e3 | 2021-12-11 22:42:46 | [truetype] Honor FT_LOAD_ADVANCE_ONLY if `hdmx` is usable. This simply shortcuts the glyph loading if FT_LOAD_ADVANCE_ONLY is specified by FT_Get_Advances and the `hdmx` data are located. Particularly, the classic v35 interpreter or "verified" ClearType fonts might see 100x speed up in retrieving the hdmx cache. * src/truetype/ttgload.c (TT_Load_Glyph): Insert the shortcut. | |
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6c831d65 | 2021-12-11 22:34:27 | [truetype] Initialize the loader with `hdmx` data. The `hdmx` matching can be done before the glyph is loaded. * include/freetype/internal/tttypes.h (TT_LoaderRec): Add a field. * src/truetype/ttgload.c (compute_glyph_metrics): Relocate the `hdmx` code from here... (tt_loader_init): ... to here, before the glyph is loaded. | |
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7809007a | 2021-12-11 22:22:57 | [truetype] Relocate subpixel flag setting. `TT_RunIns` is too busy to deal with subpixel flags. It is better to set them in `tt_loader_init`, which is executed before each glyph program. * src/truetype/ttinterp.c (TT_RunIns): Move the flag setting from here... * src/truetype/ttgload.c (tt_loader_init): ... to here. | |
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a35b081e | 2021-12-11 22:12:25 | [truetype] Limit INSTCTRL appication within specs. * src/truetype/ttinterp.c (Ins_INSTCTRL): Limit its global effects to the CVT program and local effects to the glyph program. This also fixes an Infinality buglet. The `ignore_x_mode` should be locally unset by the glyph program. | |
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012b00f3 | 2021-12-07 10:19:06 | [truetype] Reduce Infinality footprint again. * src/truetype/ttgload.c (compute_glyph_metrics): Streamline and prioritize the Infinality checks to use `hdmx`. | |
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36a905e1 | 2021-11-26 09:15:46 | * src/truetype/ttpload.c (tt_face_load_hdmx): Added comments. | |
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32f13c11 | 2021-11-25 22:38:40 | [truetype] Quietly reject out-of-spec `hdmx` tables. The `hdmx` table is optional and can be safely rejected without an error if it does not follow specifications. The record size must be equal to the number of glyphs + 2 + 32-bit padding. * src/truetype/ttpload.c (tt_face_load_hdmx): Thoroughly check the record size and improve tracing. | |
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cff026d4 | 2021-11-23 16:05:12 | [truetype] Partly revert 5b626281. Fixes #1118. * src/truetype/ttpload.c (tt_face_load_hdmx): Do not assume that `record_size` is rounded even though the records are padded. | |
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3cabd142 | 2021-11-22 19:36:45 | Update `CHANGES` files, other minor whitespace and documentation issues. | |
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a11650d7 | 2021-11-21 07:51:31 | * src/truetype/ttinterp.c (Ins_MD): Avoid `FT_ABS`. Reported as https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=38562 | |
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e4f7673e | 2021-11-13 21:11:00 | [truetype] Updates for the forthcoming OpenType 1.9 standard (2/2). * src/truetype/ttgxvar.c (ft_var_load_item_variation_store): s/shortDeltaCount/wordDeltaCount/ (as done in the specification, too). Recognize new format and reject it for now. | |
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93e6b3e8 | 2021-11-13 14:41:40 | [truetype] Updates for the forthcoming OpenType 1.9 standard (1/2). This is in preparation for implementing `DeltaSetIndexMap` format 1, which is used by `COLR` v1 tables, and which allows 32bit indices. https://docs.microsoft.com/en-us/typography/opentype/otspec190/delta/otvarcommonformats_delta.html * src/truetype/ttgxvar.h (GX_DeltaSetIdxMapRec): Change type of `mapCount` to `FT_ULong`. * src/truetype/ttgxvar.c (ft_var_load_delta_set_index_mapping): Add argument for passing the table size; update caller. Implement new format. | |
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c5cd2a3d | 2021-11-10 08:46:26 | * src/truetype/ttgxvar.c (ft_var_to_normalized): Edge optimization. | |
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bb4e049a | 2021-11-04 08:58:13 | [truetype] Make trickyness checks depend on TT_USE_BYTECODE_INTERPRETER. Based on a patch from metarutaiga (MR !106). * src/truetype/ttobjs.c (tt_skip_pdffont_random_tag, tt_check_trickyness_family, tt_synth_sfnt_checksum, tt_get_sfnt_checksum, tt_check_trickyness_sfnt_ids, tt_check_trickyness): Put functions into a `TT_USE_BYTECODE_INTERPRETER` block. (tt_face_init): Put trickyness checks into a `TT_USE_BYTECODE_INTERPRETER` block. Fixes #1111. | |
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cb9e7b7a | 2021-11-06 22:59:31 | [truetype] Avoid some memory zeroing in variations. * src/truetype/ttgxvar.c (ft_var_readpackeddeltas, ft_var_load_avar, ft_var_load_item_variation_store, ft_var_load_gvar): Use FT_QNEW_ARRAY if memory immediately initialized or discarded otherwise. | |
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fc55291b | 2021-11-04 11:07:43 | [truetype] Fix handling of packed deltas in Variation Fonts. * src/truetype/ttgxvar (ft_var_readpackeddeltas): Don't expect the number of bytes used to encode the deltas to be higher than the number of encoded values. The specification allows a very compact encoding; for example, a list of 200 zeros can be encoded with just a couple of bytes. We now count the consumed bytes to make sure to not read more than expected. | |
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9ed5332f | 2021-11-04 08:56:59 | [truetype] Fix CVAR handling of tuples for all points. * src/truetype/ttgxvar (tt_face_vary_cvt): Function `ft_var_readpackedpoints`, when it returns `ALL_POINTS`, also sets `point_count` to value 0. However, the CVAR code was incorrectly expecting that `point_count` would be set to match the length of the CVT table. | |
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23d1d8ad | 2021-11-04 08:55:39 | * src/truetype/ttgxvar.c: Fix typos in macros that guard CVAR code. | |
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94cb3a2e | 2021-10-29 10:31:59 | * src/truetype/ttgload.c (load_truetype_glyph): Fix MSVC warning C4312. | |
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8406ae53 | 2021-10-15 14:16:30 | [truetype] Reload context after re-executing `prep`. When a different hinting mode from the current is selected, the `prep` table must be re-executed with the new mode. After this happens the context must be re-loaded in preparation for the glyph program to be run. Fixes #1104. * truetype/ttgload.c (tt_loader_init): Add call to `TT_Load_Context`. | |
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0b92c56c | 2021-10-15 19:02:41 | [truetype] Minor documentation improvements. | |
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22befeef | 2021-10-07 22:41:56 | Signedness revisions. This eliminates explicit casting by switching to unsigned fields. The revisions mostly impact the handling of CID fonts. * include/freetype/fttypes.h (FT_Data): Change to unsigned `length`. * include/freetype/t1tables.h (CID_FaceDictRec): Ditto for `sd_bytes`. (CID_FaceInfoRec): Ditto for `gd_bytes` and `gd_bytes`. * include/freetype/internal/tttypes.h (TT_LoaderRec): Ditto for `byte_len`. * src/cid/cidgload.c (cid_load_glyph): Updated. * src/cid/cidload.h (cid_get_offset): Update argument. * src/cid/cidload.c (cid_get_offset, cid_read_subrs, cid_face_open): Updated. * src/cff/cffgload.c (cff_get_glyph_data, cff_free_glyph_data): Updated. * src/psaux/psft.c (cf2_getT1SeacComponent): Updated. * src/truetype/ttgload.c (TT_Process_Composite_Glyph, load_truetype_glyph): Updated. | |
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801b7540 | 2021-09-14 22:55:50 | Minor type adjustments. * src/cff/cffobjs.c (cff_face_init): Reduce casting. * src/truetype/ttobjs.c (tt_size_ready_bytecode): Ditto. * src/type1/t1load.c (T1_Set_MM_Design): Ditto. | |
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073ff2d7 | 2021-09-13 00:04:45 | [truetype] Clean up `exec` initialization. * src/truetype/ttinterp.c (Init_Context): Absorbed into... (TT_New_Context): ... this function. | |
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fab94f9f | 2021-09-12 23:30:07 | [truetype] Avoid some memory zeroing. * src/truetype/ttgload.c (load_truetype_glyph): Use Q-macro. * src/truetype/ttinterp.c (Update_Max): Ditto. * src/truetype/ttpload.c (src/truetype/ttpload.c): Ditto. | |
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5b626281 | 2021-09-10 10:19:07 | [truetype] Tweak `hdmx` checking. Fixes #1096. * src/truetype/ttpload.c (tt_face_load_hdmx): Account for padding. | |
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e942a310 | 2021-09-09 22:17:46 | [truetype] Tweak `loca` clamping. Fixes #1095. * src/truetype/ttpload.c (tt_face_load_loca): Fix up clamping. * include/freetype/internal/tttypes.h (TT_Face): Correct docs. | |
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d1c20005 | 2021-08-28 07:29:05 | [truetype] Fix compilation if !TT_CONFIG_OPTION_BYTECODE_INTERPRETER. * src/truetype/ttgxvar.c (tt_cvt_ready_iterator): Compile function conditionally. (tt_face_vary_cvt) [!TT_CONFIG_OPTION_BYTECODE_INTERPRETER]: Add code. Fixes #1091. | |
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50318357 | 2021-08-25 00:31:26 | [truetype] Fix for the family name shorter than 8 characters. * src/truetype/ttobjs.c (tt_skip_pdffont_random_tag): If the family name to be checked is shorter than 8 characters, do not check its syntax. | |
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c4fc0e69 | 2021-08-24 12:29:47 | [truetype] Simplify `trick_names'. * src/truetype/ttobjs.c (tt_check_trickyness_family): For the case that the beginning part of a long tricky family name is already registered as another tricky family name, no need to double-check the longer one. Such long tricky family names are removed from the `trick_names'. | |
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992382ba | 2021-08-24 12:11:46 | [truetype] Add 2 tricky font names. Additional fix for the issue #1087. * src/truetype/ttobjs.c (tt_check_trickyness_family): Add 2 tricky font names reported in #1087. | |
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2b3ccd6e | 2021-08-24 11:43:11 | [truetype] New function to skip the randomization tag. * src/truetype/ttobjs.c (tt_skip_pdffont_random_tag): New function to skip the randomization tag in the names of the fonts embedded in a PDF. It is used by tt_check_trickyness_family(), to keep from mistaking "DLC" in the randomization tag as a tricky font name. See discussion in: https://lists.nongnu.org/archive/html/freetype-devel/2021-02/msg00002.html For technical detail about the randomization tag, please find PDF Reference 5.5.3 "Font Subsets". Thanks to Justyna Wawrzynska for pointing out the issue caused by the randomization tag. | |
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1c23982d | 2021-08-24 10:25:22 | [truetype] Add checksums for 2 tricky fonts. Thanks to Ting717 for providing sample PDF. Fixes #1087. * src/truetype/ttobjs.c (tt_check_trickyness_sfnt_ids): Add checksums for 2 tricky fonts `DFHei-Bd-WIN-HK-BF' and `DFMing-Md-WIN-HK-BF'. | |
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78f2bd0b | 2021-08-22 22:32:07 | Whitespace formatting. | |
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f11f3ed1 | 2021-08-18 06:54:34 | [base] Fix ppem size overflow. Fixes #1086. * src/base/ftobjs.c (FT_Request_Metrics): Add return value. Check whether ppem values fit into unsigned short values. (FT_Request_Size): Updated. * include/freetype/internal/ftobjs.h: Updated. * src/cff/cffobjs.c (cff_size_request), src/cid/cidobjs.c (cid_size_request), src/truetype/ttdriver.c (tt_size_request), src/type1/t1objs.c (T1_Size_Request): Updated. | |
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d3dc2da9 | 2021-06-30 18:22:29 | * src/truetype/ttgxvar.c (tt_set_mm_blend): Test `coords`. It is undefined behavior to pass `NULL` to `memcpy`. `coords' is passed to `memcpy` but `TT_Get_MM_Blend` and `TT_Get_Var_Design` explictly call `tt_set_mm_blend` with `coords` as `NULL`. In addition, `TT_Set_MM_Blend` has a similar possible issue. | |
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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`. |