kmx git

Commit	Date	Message
9006ff7d	2022-06-21T17:10:56	* ttgload.c (TT_Process_Composite_Glyph): Fix a signedness warning.
47103b2f	2022-06-18T23:09:17	[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.
705f4161	2022-06-18T23:02:26	[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.
9c706dcc	2022-06-16T16:11:51	[truetype/GX] Clean up advance adjustment (Brrr). * src/truetype/ttgload.c (load_truetype_glyph): Remove remaining code.
d6fc8c6b	2022-06-15T18:28:50	[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.
b11074cf	2022-06-06T15:59:56	[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
079a22da	2022-04-19T09:28:21	* src/truetype/ttgload.c (TT_Process_Simple_Glyph): Integer overflow. Reported as https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=46792
695d606a	2022-04-01T08:50:33	Whitespace.
d247c562	2022-03-31T18:54:15	[truetype] Use SUB_LONG for component offset. * src/truetype/ttgload.c (TT_Process_Composite_Component): do it. Bug: https://crbug.com/1309429
ac4c1ebf	2022-02-07T06:55:54	[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.
24db55ec	2022-02-05T09:06:39	Various minor doc fixes.
5cf01aa2	2021-12-25T19:46:46	[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.
d0cfb4e1	2022-01-11T10:54:10	Update all copyright notices.
0da2a115	2021-12-13T11:44:24	[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.
fd03dcc1	2021-12-12T12:29:04	[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.
a8ef33e3	2021-12-11T22:42:46	[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.
6c831d65	2021-12-11T22:34:27	[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.
7809007a	2021-12-11T22:22:57	[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.
012b00f3	2021-12-07T10:19:06	[truetype] Reduce Infinality footprint again. * src/truetype/ttgload.c (compute_glyph_metrics): Streamline and prioritize the Infinality checks to use `hdmx`.
94cb3a2e	2021-10-29T10:31:59	* src/truetype/ttgload.c (load_truetype_glyph): Fix MSVC warning C4312.
8406ae53	2021-10-15T14:16:30	[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`.
22befeef	2021-10-07T22:41:56	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.
fab94f9f	2021-09-12T23:30:07	[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.
369d8be9	2021-03-31T22:31:44	[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.
b6e8a712	2021-01-17T07:18:48	Update all copyright notices.
f6be9276	2020-12-16T06:03:10	[truetype] Fix incremental metrics (#59503). * src/truetype/ttgload.c (tt_get_metrics, load_truetype_glyph): Previously, the code would populate the phantom points before calling the `get_glyph_metrics` callback. For formats like PCL XL format 1, class 2 downloaded fonts (where metrics are removed from the TTF header), this causes problems when the hinting program uses the phantom points (misplaced and distorted glyphs) due to the metrics being unset (all zeros). (tt_get_metrics_incr_overrides): Renamed to... (tt_get_metrics_incremental): ... this. Updated caller * include/freetype/ftincrem.h: Update the documentation to make it clearer that `get_glyph_metrics` is to retrieve metrics from a non-standard source, but not for the purpose of imposing custom metrics.
a6adb256	2020-12-02T14:15:07	* src/*: Don't use more than one '\n' in `FT_TRACE` and `FT_ERROR`. This ensures good logging output, with all lines having a proper prefix (if requested).
cdc009c2	2020-08-22T13:30:11	* src/truetype/ttgload.c (TT_Get_VMetrics): Add tracing message.
f9f6adb6	2020-08-05T08:24:15	[truetype] Retain OVERLAP_SIMPLE and OVERLAP_COMPOUND. For glyphs with OVERLAP_SIMPLE or OVERLAP_COMPOUND, set FT_OUTLINE_OVERLAP to render them with direct oversampling, which mitigates artifacts (see 3bb512bc9f62). * include/freetype/ftimage.h (FT_OUTLINE_OVERLAP): Redefine to rhyme with OVERLAP_SIMPLE. * src/base/ftgloadr.c (FT_GlyphLoader_Rewind): Reset outline flags. * src/truetype/ttgload.c (TT_Load_Simple_Glyph): Retain OVERLAP_SIMPLE. (load_truetype_glyph): Retain OVERLAP_COMPOUND.
3a1f4b7a	2020-08-04T22:17:05	* src/truetype/ttgload.c (TT_Load_Glyph): More tracing.
53be1753	2020-07-28T07:33:40	Fix `-Wformat' compiler warnings. * src/: Fix format specifiers. builds/unix/ftsystem.c (FT_Stream_Open): Ditto.
e1339133	2020-06-08T13:31:55	Make macros for header file names optional. We no longer have to take care of the 8.3 file name limit; this allows us (a) to introduce longer, meaningful file names, and (b) to avoid macro names in `#include' lines altogether since some compilers (most notably Visual C++) doesn't support this properly. /: Replace #include FOO_H with #include <freetype/foo.h> or something similar. Also update the documentation.
e5038be7	2020-01-19T17:05:19	Update all copyright notices.
c67b9a1c	2019-11-23T11:01:18	[truetype] Fix integer overflow (#57287). * src/truetype/ttgload.c (compute_glyph_metrics): Use `SUB_LONG'.
12e4307d	2019-07-12T10:48:10	Properly handle phantom points for variation fonts (#56601). * src/truetype/ttgload.c (TT_Process_Simple_Glyph): Scale phantom points if HVAR and/or VVAR is present.
f37083ed	2019-05-29T08:15:38	[truetype] Fix copy-and-paste error (#56409). * src/truetype/ttgload.c (load_truetype_glyph): Use correct indices into `unrounded' array for phantom points.
86d997e5	2019-05-26T09:37:41	* src/truetype/ttgload.c (TT_Process_Simple_Glyph): Improve accuracy.
ac335cd5	2019-05-16T10:15:53	* src/truetype/ttgload.c (load_truetype_glyph): Init `unrounded'. This fixes linear advance width values for spacing glyphs. Bug introduced 2019-05-09.
535b687e	2019-05-16T09:55:16	[truetype] Avoid code duplication. * src/truetype/ttobjs.c (tt_size_run_prep): Scale CVT values in this function. (tt_size_ready_bytecode): Updated. * src/truetype/ttgload.c (tt_loader_init): Updated.
94ebc248	2019-05-12T21:05:36	[truetype] Doh. Fix last commit to make it work. Very embarassing :-) Reported as https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=14701 https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=14705 https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=14710 * src/truetype/ttgload.c (IS_DEFAULT_INSTANCE): Move up and add argument; update all callers. (TT_Process_Simple_Glyph): Use it. The `unrounded' array is active for variation fonts only, thus also enclose related code with `#ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT ... #endif' where necessary. Revert commit a113e5d from 2019-05-09, and don't use `extra_points2' but allocate a temporary array. Speed up the scaling of the `unrounded' array. * src/truetype/ttgxvar.c (FT_fixedToInt, FT_FixedToFdot6): Fix type conversions and rounding. The unsigned type must have more or equal bits to the signed type.
1178227b	2019-05-11T09:29:19	[truetype] Increase precision of font variation (#54371). This patch make FreeType use font units in 26.6 format internally instead of integers. * src/truetype/ttgxvar.c (FT_fixedToFdot6): New macro. (TT_Vary_Apply_Glyph_Deltas): Add argument to output unrounded font coordinates. * src/truetype/ttgxvar.h: Updated. * src/truetype/ttgload.c (TT_Process_Simple_Glyph): Use `extra_points2' array to temporarily hold unrounded point coordinates; use them to compute scaled coordinates and linear advance width and height. (load_truetype_code): Adjust similarly.
a113e5df	2019-05-09T11:37:58	* src/truetype/ttgload.c (TT_Process_Simple_Glyph): Minor.
7b841047	2019-05-04T08:13:22	Various clang 8.0 static analyzer fixes. Reported by Sender Ghost <lightside@gmx.com>. * src/autofit/afcjk.c (af_cjk_hints_compute_edges): Catch a corner case where `edge->first' could be NULL. * src/pfr/pfrobjs.c (pfr_slot_load): Remove unnecessary test of `size'. * src/raster/ftraster.c (Draw_Sweep): Catch a corner case where `draw_right' might be NULL. * src/sfnt/ttmtx.c (tt_face_get_metrics): Fix limit test for `aadvance'. Ensure `abearing' always hold a meaningful result. * src/truetype/ttgload.c (load_truetype_glyph): Ensure `subglyph' is not NULL before accessing it. * src/truetype/ttgxvar.c (TT_Set_Named_Instance): Remove unnecessary test of `namedstyle'. * src/type42/t42parse.c (t42_parser_done): Ensure `parser->root.funcs.done' is not NULL before accessing it.
75859970	2019-02-23T10:07:09	Update all copyright notices.
f686ad46	2019-01-22T20:31:44	Update copyright years.
2b4e61e4	2018-12-12T09:36:39	Minor documentation fixes.
3e8a2283	2018-12-11T23:54:17	* src/truetype/ttgload.c (TT_Hint_Glyph): Remove useless test. `control_len' only gets its value from `n_ins' (and vice versa), which is always read as `unsigned short' and thus can't be larger than 0xFFFF.
74cdd75f	2018-11-27T17:55:40	[truetype] Fix numeric overflow (#55103). * src/truetype/ttgload.c (compute_glyph_metrics): Use `SUB_LONG'.
f262d15d	2018-10-07T07:40:37	Minor comment improvement.
a9af6914	2018-09-25T09:10:09	Fix handing of `FT_Bool'. Before this commit we had code like (FT_Bool)( globals->glyph_styles[gindex] & 0x8000) Since `FT_Bool' is defined to be an `unsigned char', the code evaluated to something like (unsigned char)( 0x8532 & 0x8000) which in turn expanded to (unsigned char)( 0x8000) and finally yielded 0x00 – i.e., false – not as expected. Problem reported and analyzed by Tony Smith <tony.smith@macro4.com>. * include/freetype/fttypes.h (FT_BOOL): Add a comparison against zero so that we always have a Boolean expression. /: Replace castings to `FT_Bool' with calls to `FT_BOOL' where possible.
1c04eed7	2018-09-07T06:40:55	[truetype] Fix assertion failure. Triggered by https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=10212 * src/truetype/ttgload.c (load_truetype_glyph): Reintroduce `opened_frame' (removed in a change from 2018-08-26) to handle dealloation of the second frame.
4738dcc4	2018-08-26T12:03:33	Minor tracing adjustments. * src/base/ftstream.c (FT_Stream_EnterFrame, FT_Stream_ExitFrame): Trace. * src/truetype/ttgload.c (TT_Access_Glyph_Frame): Remove tracing.
6e339b8d	2018-08-26T11:59:02	[truetype] Avoid nested frames. Triggered by https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=10054 * src/truetype/ttgload.c (load_truetype_glyph): Don't use variable `opened_frame' to trace whether a frame must be closed at the end of function: This fails because `TT_Vary_Apply_Glyph_Deltas' (which gets called for space glyphs) uses a frame by itself. Instead, close the frame after loading the header, then use another frame for the remaining part of the glyph later on. Also avoid calling `tt_get_metrics' twice under some circumstances.
45524679	2018-08-22T10:31:05	[truetype] Improve legibility of `glyf' parsing. * src/truetype/ttgload.c (ON_CURVE_POINT, X_SHORT_VECTOR, Y_SHORT_VECTOR, REPEAT_FLAG, X_POSITIVE, SAME_X, Y_POSITIVE, SAME_Y, OVERLAP_SIMPLE): New macros. (TT_Load_Simple_Glyph): Use new macros to make code more readable. Remove useless adjustment of `outline->tags' elements.
a0dd16fb	2018-08-15T18:13:17	Don't use `trace_' prefix for FT_COMPONENT arguments. * include/freetype/internal/ftdebug.h (FT_TRACE_COMP, FT_TRACE_COMP_): New auxiliary macros to add `trace_' prefix. (FT_TRACE): Use `FT_TRACE_COMP'. / (FT_COMPONENT): Updated.
720ae67f	2018-08-05T07:21:10	* src/truetype/ttgload.c (compute_glyph_metrics): Fix overflow. Reported as https://bugs.chromium.org/p/chromium/issues/detail?id=777151
9b31c446	2018-06-14T21:30:43	Replace `FT_Get_GlyphLayers' with `FT_Get_Color_Glyph_Layer'. This avoids any additional allocation of COLR related structures in a glyph slot. * include/freetype/freetype.h (FT_Glyph_Layer, FT_Glyph_LayerRec, FT_Get_GlyphLayers): Removed. * include/freetype/internal/ftobjs.h (FT_Colr_InternalRec): Removed. (FT_Slot_InternalRec): Remove `color_layers'. * include/freetype/internal/sfnt.h (TT_Load_Colr_Layer_Func): Removed. (SFNT_Interface, FT_DEFINE_SFNT_INTERFACE): Remove `load_colr_layer'. * src/base/ftobjs.c (ft_glyph_slot_done): Updated. (FT_Render_Glyph_Internal): Use `FT_Get_Color_Glyph_Layer'. (FT_Get_GlyphLayers): Removed. * src/sfnt/sfdriver.c (sfnt_interface): Updated. * src/sfnt/ttcolr.c (tt_face_load_colr_layers): Removed. * src/sfnt/ttcolr.h: Updated. * src/truetype/ttgload.c (TT_Load_Glyph): Updated.
54b332aa	2018-06-13T08:46:27	[sfnt] Separate `CPAL' and `COLR' table handling. Later on we want to support the `SVG' table also, which needs `CPAL' (but not `COLR'). * include/freetype/internal/sfnt.h (SFNT_Interface): Add `load_cpal' and `free_cpal' fields. (FT_DEFINE_SFNT_INTERFACE): Updated. * include/freetype/internal/tttypes.h (TT_FaceRec): Replace `colr_and_cpal' fields with `cpal' and `colr'. * src/sfnt/sfdriver.c (sfnt_interface): Updated. * src/sfnt/sfobjs.c (sfnt_load_face, sfnt_done_face): Updated. * src/sfnt/ttcolr.c (Colr, Cpal): Add `table' field. (ColrCpal): Removed. (tt_face_load_colr): Split off CPAL handling into... (tt_face_load_cpal): ... this new function. (tt_face_free_colr): Split off CPAL handling into... (tt_face_free_cpal): ... this new function. (tt_face_load_colr_layers, tt_face_palette_set): Updated. * src/sfnt/ttcolr.h: Updated. * src/truetype/ttgload.c (TT_Load_Glyph): Updated.
9ac9060d	2018-06-03T09:01:17	[GSoC] src/.: Convert block comments to `light' style. This monster commit was created by applying Nikhil's scripts `docconverter.py' and `markify.py' to all C header and source files, followed up by minor manual clean-up. No change in functionality, of course. I used commit f7419907bc6044b9b7057f9789866426c804ba82 from https://github.com/nikramakrishnan/freetype-docs.git.
3360ca58	2018-05-22T09:06:24	[truetype] Reject elements of composites with invalid glyph indices. Reported as https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=8413 * src/truetype/ttgload.c (TT_Load_Composite_Glyph): Implement it.
3c99016f	2018-05-22T07:53:49	* src/truetype/ttgload.c (TT_Load_Simple_Glyph): Trace # of points.
583dabf2	2018-05-16T20:37:43	Add function `FT_Get_GlyphLayers' to access `COLR' table data. * include/freetype/internal/ftobjs.h (FT_Glyph_LayerRec): Move this structure to... * include/freetype/freetype.h (FT_Glyph_LayerRec): ... this header file. (FT_Glyph_Layer): New typedef. Update code to use it where appropriate. * src/base/ftobjs.c (FT_Get_GlyphLayers): New function.
befee112	2018-05-15T17:01:22	[sfnt] Fix memory leak in handling `COLR' data. * src/truetype/ttgload.c (TT_Load_Glyph): Free old `layers' array before reassigning allocated memory. Only allocate `color_layers' if we don't have one already.
2dd20916	2018-05-15T09:05:53	[sfnt] If `COLR' is present, don't assume that all glyphs use it. * src/sfnt/ttcolr.c (tt_face_load_colr_layers): Return FT_Err_Ok if current glyph is not a `COLR' base glyph. * src/truetype/ttgload.c (TT_Load_Glyph): Don't allocate `color_layers' if there are no color layers.
f04d8175	2018-05-13T03:25:09	[sfnt] Preliminary support of coloured layer outlines. This commit enables OpenType's COLR/CPAL table handling; a typical application are color emojis that can be scaled to any size. If the color palette does not exist or is invalid, the rendering step rasterizes the outline instead. The current implementation assumes that the foreground is black. Enable this by defining option TT_CONFIG_OPTION_COLOR_LAYERS. There are still some issues with metrics; additionally, an API to fetch color layers is missing. * devel/ftoption.h, include/freetype/config/ftoption.h (TT_CONFIG_OPTION_COLOR_LAYERS): New macro. * include/freetype/internal/ftobjs.h (FT_Glyph_LayerRec, FT_Colr_InternalRec): New structures. (FT_Slot_InternalRec): Add `color_layers' field. * include/freetype/internal/sfnt.h (TT_Load_Colr_Layer_Func, TT_Blend_Colr_Func): New function types. (SFNT_Interface): Add `load_colr', `free_colr', `load_colr_layer', and `colr_blend' fields. * include/freetype/internal/tttypes.h (TT_FaceRec): Add `colr_and_cpal' field. * include/freetype/internal/tttags. (TTAG_COLR, TTAG_CPAL): New macros. * src/sfnt/ttcolr.c, src/sfnt/ttcolr.h: New files. * src/base/ftobjs.c (ft_glyphslot_done, FT_Render_Glyph_Internal): Handle glyph color layers. * src/sfnt/Jamfile (_sources), src/sfnt/rules.mk (SFNT_DRV_SRC): Add `ttcolr.c'. * src/sfnt/sfdriver.c: Include `ttcolr.h'. (PUT_COLOR_LAYERS): New macro. Update call to `FT_DEFINE_SFNT_INTERFACE'. * src/sfnt/sfnt.c: Include `ttcolr.c'. * src/sfnt/sfobjs.c (sfnt_load_face): Load `COLR' and `CPAL' tables. (sfnt_done_face): Updated. * src/truetype/ttgload.c (TT_Load_Glyph): Handle color layers.
43d4852e	2018-03-23T06:07:24	[truetype] Fix advance of empty glyphs in bitmap fonts (#53393). * src/truetype/ttgload.c (TT_Load_Glyph): Apply scaling to metrics for empty bitmaps.
63aaf89c	2018-02-17T10:34:47	s/sub-pixel/subpixel/.
029c9b23	2018-01-03T19:05:20	[truetype] Round offsets of glyph components only if hinting is on. * src/truetype/ttgload.c (TT_Process_Composite_Component): Implement it.
0a0c2256	2018-01-02T09:33:57	Update copyright year.
068a7a03	2017-12-18T20:34:05	* src//: Only use `ft_' and `FT_' variants of stdc library stuff.
d062c54c	2017-12-18T09:41:17	[truetype] Fix previous commit. * src/truetype/ttgload.c (TT_Process_Simple_Glyph): Correctly handle unhinted phantom points, which must be properly scaled.
e7935f29	2017-12-18T07:29:57	[truetype] Don't apply HVAR and VVAR deltas twice (#52683). * src/truetype/ttgload.c (TT_Process_Simple_Glyph): Always adjust `pp1' to `pp4', except if we have an HVAR and/or VVAR table. * src/truetype/ttgxvar.c (TT_Vary_Apply_Glyph_Deltas): Handle alternative code branch identically w.r.t. presence of an HVAR and/or VVAR table.
98ba0c4a	2017-12-08T18:38:41	New `ftdriver.h' file, covering all driver modules. This reduces redundancy and increases synergy; it also reduces the number of header files. * include/freetype/config/ftheader.h (FT_DRIVER_H): New macro. (FT_AUTOHINTER_H, FT_CFF_DRIVER_H, FT_TRUETYPE_DRIVER_H, FT_PCF_DRIVER_H, FT_TYPE1_DRIVER_H): Make them aliases to FT_DRIVER_H. * include/freetype/ftautoh.h, include/freetype/ftcffdrv.h, include/freetype/ftpcfdrv.h, include/freetype/ftt1drv.h, include/freetype/ftttdrv.h: Replaced with... * include/freetype/ftdriver.h: ...this new file. (FT_CFF_HINTING_ADOBE, FT_T1_HINTING_ADOBE): Renamed to... (FT_HINTING_ADOBE): ... this new macro. (FT_CFF_HINTING_FREETYPE, FT_T1_HINTING_FREETYPE): Renamed to... (FT_HINTING_FREETYPE): ... this new macro. * src//: Updated accordingly.
c18c391b	2017-11-28T12:43:45	[truetype] Improving tracing of composite glyphs. * src/truetype/ttgload.c (TT_Load_Composite_Glyph) [FT_DEBUG_LEVEL_TRACE]: Show composite glyph information.
8c92f762	2017-10-07T12:12:49	Make `FT_FACE_FLAG_VARIATION' work. * include/freetype/internal/tttypes.h (TT_Face): Remove `is_default_instance'; this can be replaced with a combination of `FT_IS_VARIATION' and `FT_IS_INSTANCE'. * src/cff/cffdrivr.c (cff_get_advances): Updated. * src/sfnt/sfdriver.c (sfnt_get_ps_name), src/sfnt/sfobjs.c (sfnt_init_face): Updated. * src/truetype/ttdriver.c (tt_get_advances), src/truetype/ttgload.c (TT_Process_Simple_Glyph, load_truetype_glyph, IS_DEFAULT_INSTANCE), src/truetype/ttgxvar.c (tt_set_mm_blend): Updated. * src/truetype/ttgxvar.c (TT_Set_MM_Blend, TT_Set_Var_Design): Handle `FT_FACE_FLAG_VARIATION'. * src/type1/t1load.c (T1_Set_MM_Blend, T1_Set_MM_Design): Handle `FT_FACE_FLAG_VARIATION'.
b45043c4	2017-08-11T09:34:20	[sfnt, truetype] Improve handling of missing sbits. Requested by Behdad. Modern bitmap-only SFNTs like `NotoColorEmoji.ttf' don't contain entries in the bitmap strike(s) for empty glyphs. Instead, they rely that a space glyph gets created from the font's metrics data. This commit makes FreeType behave accordingly. * include/freetype/fterrdef.h (FT_Err_Missing_Bitmap): New error code. * src/sfnt/ttsbit.c (tt_sbit_decoder_load_image): Change error codes to make a distinction between a missing bitmap in a composite and a simple missing bitmap. * src/truetype/ttgload.c (TT_Load_Glyph): For a missing bitmap (in a bitmap-only font), synthesize an empty bitmap glyph if metrics are available.
24e256ab	2017-08-04T08:25:31	[truetype] Fix metrics of B/W hinting in v40 mode. Phantom points are now saved outside v40 backwards compatibility mode. This fixes the jumping glyphs when switching between v35 and v40 monochrome mode. * src/truetype/ttgload.c (TT_Hint_Glyph): Fix inversed bool logic.
ce367774	2017-08-01T08:24:51	[sfnt, truetype] Minor adjustments for OpenType 1.8.2. * src/sfnt/sfobjs.c (sfnt_load_face): The units per EM value has now (tighter) limits. * src/truetype/ttgload.c (load_truetype_glyph): The new OpenType version explicitly allows all negative values for the number of contours if we have a composite glyph (this is for better backwards compatibility I guess), but it still recommends value -1.
dcd8de27	2017-06-09T11:21:58	/: Remove `OVERFLOW_' prefix. This increases readability.
addb2ddd	2017-06-03T21:05:42	[base, cff, truetype] Integer overflows. Reported as https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2060 https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2062 https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2063 https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2068 * src/base/ftobjs.c (ft_glyphslot_grid_fit_metrics): Use OVERFLOW_ADD_LONG and OVERFLOW_SUB_LONG. * src/cff/cf2blues.c (cf2_blues_capture), src/cff/cf2hints.c (cf2_hintmap_adjustHints): Use OVERFLOW_SUB_INT32. * src/truetype/ttgload.c (compute_glyph_metrics): User OVERFLOW_SUB_LONG. * src/truetype/ttinterp.c (Direct_Move, Direct_Move_Orig, Direct_Move_X, Direct_Move_Y, Direct_Move_Orig_X, Direct_Move_Orig_Y, Move_Zp2_Point, Ins_MSIRP): Use OVERFLOW_ADD_LONG and OVERFLOW_SUB_LONG.
a0455468	2017-05-20T07:28:46	[truetype] Always use interpreter v35 for B/W rendering (#51051). * src/truetype/ttgload.c (tt_loader_init) [TT_SUPPORT_SUBPIXEL_HINTING_MINIMAL]: Adjust `subpixel_hinting_lean', `grayscale_cleartype', and `vertical_lcd_lean' accordingly. * src/truetype/ttinterp.c (Ins_GETINFO): Updated. (TT_RunIns): Update `backward_compatibility' flag.
6e5445a2	2017-05-15T21:24:04	[truetype] Fix error handling for embedded bitmaps. Problem reported by Hin-Tak Leung <htl10@users.sourceforge.net>. * src/truetype/ttgload.c (TT_Load_Glyph) [TT_CONFIG_OPTION_EMBEDDED_BITMAPS]: Handle error if font is not scalable.
8cd31eb7	2017-05-03T23:54:29	/: s/backwards compatibility/backward compatibility/.
ba40054c	2017-05-02T12:32:19	[autofit] Remove `slight' auto-hint mode again. A poll on freetype-devel favoured changes directly applied to `light'. * include/freetype/freetype.h (FT_LOAD_TARGET_SLIGHT, FT_RENDER_MODE_SLIGHT): Removed. * src/autofit/afcjk.c (af_cjk_hints_init), src/autofit/aflatin.c (af_latin_hints_init), src/autofit/aflatin2.c (af_latin2_hints_init): Revert change from 2017-04-22. * src/autofit/afloader.c (af_loader_load_glyph) Remove references to FT_RENDER_MODE_SLIGHT. [AF_CONFIG_OPTION_TT_SIZE_METRICS]: Enable TrueType-like metrics unconditionally. * src/base/ftadvanc.c (LOAD_ADVANCE_FAST_CHECK): Revert change from 2017-04-22. * src/base/ftobjs.c (FT_Load_Glyph): Revert change from 2017-04-22. * src/pshinter/pshalgo.c (ps_hints_apply): Revert change from 2017-04-22. * src/smooth/ftsmooth.c (ft_smooth_render): Revert change from 2017-04-22. * docs/CHANGES: Updated.
5f18d867	2017-04-22T23:02:21	[truetype] Do linear scaling for FT_LOAD_NO_HINTING (#50470). * src/truetype/ttobs.h (TT_SizeRec): Add field `hinted_metrics' to hold hinted metrics. Make `metrics' a pointer so that `tt_glyph_load' can easily switch between metrics. * src/truetype/ttdriver.c (tt_size_request): Updated. (tt_glyph_load): Use top-level metrics if FT_LOAD_NO_HINTING is used. * src/truetype/ttgload.c (TT_Hint_Glyph, TT_Process_Simple_Glyph, TT_Process_Composite_Component, load_truetype_glyph, compute_glyph_metrics, TT_Load_Glyph): Updated. * src/truetype/ttinterp.c (TT_Load_Context): Updated. * src/truetype/ttobjs.c (tt_size_reset): Updated. * src/truetype/ttsubpix.c (sph_set_tweaks): Updated.
bb6c037b	2017-04-01T09:49:11	* src/truetype/ttgload.c: Include FT_CONFIG_CONFIG_H. Otherwise FT_UINT_TO_POINTER might not be defined. Problem reported by Alexei.
bcc74f4d	2017-03-30T13:14:43	[truetype] Allow linear scaling for unhinted rendering (#50470). * src/truetype/ttdriver.c (tt_size_request): Revert change from 2011-07-16; the intended metrics fix seems now to be implemented in a different way, making the patch unnecessary. Note that this change was usually patched out by all major GNU/Linux distributions due to heavy side effects. * src/truetype/ttgload.c (compute_glyph_metrics, TT_Load_Glyph): Refer to the metrics of the `TT_Size' object.
208e712d	2017-03-27T20:56:23	[cid, truetype] Don't use `index' as a variable name. At least on FreeBSD there is a global declaration of `index' in file `/usr/include/strings.h'. * src/cff/cf2intrp.c, src/truetype/ttgload.c: s/index/idx/ where appropriate.
683e3ad9	2017-03-21T19:49:11	[truetype] Some variable renamings. Too much local variables holding different structures were called `metrics'. * src/truetype/ttdriver.c (tt_size_select): s/metrics/size_metrics/. * src/truetype/ttgload.c (tt_get_metrics_incr_overrids, compute_glyph_metrics): s/metrics/incr_metrics/. (load_sbit_image): s/metrics/sbit_metrics/. * src/truetype/ttobjs.c (tt_size_run_fpgm): s/metrics/size_metrics/. (tt_size_init_bytecode): s/metrics/tt_metrics/. (tt_size_reset): s/metrics/size_metrics/.
7aeee3c5	2017-03-18T17:30:42	Introduce FT_UINT_TO_POINTER macro (#50560). We have to make a separate case for Windows 64's LLP64 data model. * builds/unix/ftconfig.in, builds/vms/ftconfig.h, include/freetype/config/ftconfig.h (FT_UINT_TO_POINTER): New macro. * src/truetype/ttgload.c (load_truetype_glyph): Use it.
d5bfa053	2017-03-17T21:47:54	Fixes for conditional compilation. * src/autofit/afcjk.c, src/autofit/afindic.c: Include `afcjk.h' earlier. * src/sfnt/sfobjs.c (sfnt_init_face): Put `memory' variable into TT_CONFIG_OPTION_GX_VAR_SUPPORT block. (sfnt_done_face): Protect some code with TT_CONFIG_OPTION_GX_VAR_SUPPORT. * src/sfnt/ttsbit.c (tt_face_load_sbix_image): Remove compiler warning. * src/truetype/ttgload.c (TT_Load_Simple_Glyph): Put `tmp' variable into TT_USE_BYTECODE_INTERPRETER block. (tt_loader_init): Put `error' variable into TT_USE_BYTECODE_INTERPRETER block.
01f315f0	2017-02-23T14:24:01	[truetype] Minor improvement. * src/truetype/ttgload.c (TT_Process_Simple_Glyph, load_truetype_glyph): Remove unnecessary tests.
563ae780	2017-01-04T20:16:34	Update copyright year.
8982405f	2017-01-03T09:46:19	[truetype] Various minor fixes. * src/truetype/ttgload.c (TT_Load_Simple_Glyph): Check instruction size only if we do native hinting. (TT_Load_Glyph): Trace returned error code. * src/truetype/ttobjs.c (tt_size_run_fpgm, tt_size_run_prep): Trace returned error code. (tt_size_ready_bytecode): Don't run `prep' table if `fpgm' table is invalid.
4441f7b2	2016-12-26T17:08:17	Replace `foo == NULL' and `foo != NULL' with `!foo' and `foo', resp. Other minor formatting.
e6a429e2	2016-12-21T20:27:48	[cff, truetype] Another try for #49829. * src/cff/cffdrivr.c: Don't include `FT_SERVICE_METRICS_VARIATIONS_H'. (cff_get_advances): Use `ttface->variation_support'. * src/truetype/ttdriver.c (tt_get_advances): Use `ttface->variation_support'. * src/truetype/ttgload.c (TT_Process_Simple_Glyph, load_truetype_glyph): Use `ttface->variation_support'.
cc576f80	2016-12-20T11:37:42	[truetype] Fix linear metrics of GX variation fonts. When asking for an unhinted non-default variations, `linearVertAdvance' is currently the value from the `hmtx' table instead of the actual value after applying the variation. `HVAR' support fixes this, but fonts will exist without that table and will need sane fallback. * src/truetype/ttgload.c (TT_Process_Simple_Glyph, load_truetype_glyph): Implement linear advance adjustments if `HVAR' or `VVAR' tables are missing.
eb6d0208	2016-12-18T09:29:58	Minor GX code shuffling. * include/freetype/internal/tttypes.h (TT_Face): Move `is_default_instance' into TT_CONFIG_OPTION_GX_VAR_SUPPORT block. * src/sfnt/sfobjs.c (sfnt_init_face): Updated. * src/truetype/ttgload.c (IS_DEFAULT_INSTANCE): New macro. (TT_Load_Glyph): Use it.
5d664b6d	2016-12-17T20:47:42	Use FT_SET_ERROR where useful. Other minor code formatting.
2067c698	2016-09-29T19:49:07	[truetype] Disallow bitmap strokes for non-default instances. Also speed up access of default instances if GX variations are active. * include/freetype/internal/tttypes.h (TT_FaceRec): Add `is_default_instance' member. * src/sfnt/sfobjs.c (sfnt_init_face): Initialize `is_default_instance'. * src/truetype/ttgload.c (TT_Process_Simple_Glyph, load_truetype_glyph): Add test for default instance. (TT_Load_Glyph): Load embedded bitmaps for default instance only. * src/truetype/ttgxvar.c (TT_Set_MM_Blend): Compute `is_default_instance'.

9006ff7d

2022-06-21T17:10:56

* ttgload.c (TT_Process_Composite_Glyph): Fix a signedness warning.

47103b2f

2022-06-18T23:09:17

[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.

705f4161

2022-06-18T23:02:26

[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.

9c706dcc

2022-06-16T16:11:51

[truetype/GX] Clean up advance adjustment (Brrr). * src/truetype/ttgload.c (load_truetype_glyph): Remove remaining code.

d6fc8c6b

2022-06-15T18:28:50

[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.

b11074cf

2022-06-06T15:59:56

[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

079a22da

2022-04-19T09:28:21

* src/truetype/ttgload.c (TT_Process_Simple_Glyph): Integer overflow. Reported as https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=46792

695d606a

2022-04-01T08:50:33

Whitespace.

d247c562

2022-03-31T18:54:15

[truetype] Use SUB_LONG for component offset. * src/truetype/ttgload.c (TT_Process_Composite_Component): do it. Bug: https://crbug.com/1309429

ac4c1ebf

2022-02-07T06:55:54

[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.

24db55ec

2022-02-05T09:06:39

Various minor doc fixes.

5cf01aa2

2021-12-25T19:46:46

[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.

d0cfb4e1

2022-01-11T10:54:10

Update all copyright notices.

0da2a115

2021-12-13T11:44:24

[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.

fd03dcc1

2021-12-12T12:29:04

[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.

a8ef33e3

2021-12-11T22:42:46

[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.

6c831d65

2021-12-11T22:34:27

[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.

7809007a

2021-12-11T22:22:57

[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.

012b00f3

2021-12-07T10:19:06

[truetype] Reduce Infinality footprint again. * src/truetype/ttgload.c (compute_glyph_metrics): Streamline and prioritize the Infinality checks to use `hdmx`.

94cb3a2e

2021-10-29T10:31:59

* src/truetype/ttgload.c (load_truetype_glyph): Fix MSVC warning C4312.

8406ae53

2021-10-15T14:16:30

[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`.

22befeef

2021-10-07T22:41:56

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.

fab94f9f

2021-09-12T23:30:07

[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.

369d8be9

2021-03-31T22:31:44

[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.

b6e8a712

2021-01-17T07:18:48

Update all copyright notices.

f6be9276

2020-12-16T06:03:10

[truetype] Fix incremental metrics (#59503). * src/truetype/ttgload.c (tt_get_metrics, load_truetype_glyph): Previously, the code would populate the phantom points before calling the `get_glyph_metrics` callback. For formats like PCL XL format 1, class 2 downloaded fonts (where metrics are removed from the TTF header), this causes problems when the hinting program uses the phantom points (misplaced and distorted glyphs) due to the metrics being unset (all zeros). (tt_get_metrics_incr_overrides): Renamed to... (tt_get_metrics_incremental): ... this. Updated caller * include/freetype/ftincrem.h: Update the documentation to make it clearer that `get_glyph_metrics` is to retrieve metrics from a non-standard source, but *not* for the purpose of imposing custom metrics.

a6adb256

2020-12-02T14:15:07

* src/*: Don't use more than one '\n' in `FT_TRACE` and `FT_ERROR`. This ensures good logging output, with all lines having a proper prefix (if requested).

cdc009c2

2020-08-22T13:30:11

* src/truetype/ttgload.c (TT_Get_VMetrics): Add tracing message.

f9f6adb6

2020-08-05T08:24:15

[truetype] Retain OVERLAP_SIMPLE and OVERLAP_COMPOUND. For glyphs with OVERLAP_SIMPLE or OVERLAP_COMPOUND, set FT_OUTLINE_OVERLAP to render them with direct oversampling, which mitigates artifacts (see 3bb512bc9f62). * include/freetype/ftimage.h (FT_OUTLINE_OVERLAP): Redefine to rhyme with OVERLAP_SIMPLE. * src/base/ftgloadr.c (FT_GlyphLoader_Rewind): Reset outline flags. * src/truetype/ttgload.c (TT_Load_Simple_Glyph): Retain OVERLAP_SIMPLE. (load_truetype_glyph): Retain OVERLAP_COMPOUND.

3a1f4b7a

2020-08-04T22:17:05

* src/truetype/ttgload.c (TT_Load_Glyph): More tracing.

53be1753

2020-07-28T07:33:40

Fix `-Wformat' compiler warnings. * src/*: Fix format specifiers. * builds/unix/ftsystem.c (FT_Stream_Open): Ditto.

e1339133

2020-06-08T13:31:55

Make macros for header file names optional. We no longer have to take care of the 8.3 file name limit; this allows us (a) to introduce longer, meaningful file names, and (b) to avoid macro names in `#include' lines altogether since some compilers (most notably Visual C++) doesn't support this properly. */*: Replace #include FOO_H with #include <freetype/foo.h> or something similar. Also update the documentation.

e5038be7

2020-01-19T17:05:19

Update all copyright notices.

c67b9a1c

2019-11-23T11:01:18

[truetype] Fix integer overflow (#57287). * src/truetype/ttgload.c (compute_glyph_metrics): Use `SUB_LONG'.

12e4307d

2019-07-12T10:48:10

Properly handle phantom points for variation fonts (#56601). * src/truetype/ttgload.c (TT_Process_Simple_Glyph): Scale phantom points if HVAR and/or VVAR is present.

f37083ed

2019-05-29T08:15:38

[truetype] Fix copy-and-paste error (#56409). * src/truetype/ttgload.c (load_truetype_glyph): Use correct indices into `unrounded' array for phantom points.

86d997e5

2019-05-26T09:37:41

* src/truetype/ttgload.c (TT_Process_Simple_Glyph): Improve accuracy.

ac335cd5

2019-05-16T10:15:53

* src/truetype/ttgload.c (load_truetype_glyph): Init `unrounded'. This fixes linear advance width values for spacing glyphs. Bug introduced 2019-05-09.

535b687e

2019-05-16T09:55:16

[truetype] Avoid code duplication. * src/truetype/ttobjs.c (tt_size_run_prep): Scale CVT values in this function. (tt_size_ready_bytecode): Updated. * src/truetype/ttgload.c (tt_loader_init): Updated.

94ebc248

2019-05-12T21:05:36

[truetype] Doh. Fix last commit to make it work. Very embarassing :-) Reported as https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=14701 https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=14705 https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=14710 * src/truetype/ttgload.c (IS_DEFAULT_INSTANCE): Move up and add argument; update all callers. (TT_Process_Simple_Glyph): Use it. The `unrounded' array is active for variation fonts only, thus also enclose related code with `#ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT ... #endif' where necessary. Revert commit a113e5d from 2019-05-09, and don't use `extra_points2' but allocate a temporary array. Speed up the scaling of the `unrounded' array. * src/truetype/ttgxvar.c (FT_fixedToInt, FT_FixedToFdot6): Fix type conversions and rounding. The unsigned type must have more or equal bits to the signed type.

1178227b

2019-05-11T09:29:19

[truetype] Increase precision of font variation (#54371). This patch make FreeType use font units in 26.6 format internally instead of integers. * src/truetype/ttgxvar.c (FT_fixedToFdot6): New macro. (TT_Vary_Apply_Glyph_Deltas): Add argument to output unrounded font coordinates. * src/truetype/ttgxvar.h: Updated. * src/truetype/ttgload.c (TT_Process_Simple_Glyph): Use `extra_points2' array to temporarily hold unrounded point coordinates; use them to compute scaled coordinates and linear advance width and height. (load_truetype_code): Adjust similarly.

a113e5df

2019-05-09T11:37:58

* src/truetype/ttgload.c (TT_Process_Simple_Glyph): Minor.

7b841047

2019-05-04T08:13:22

Various clang 8.0 static analyzer fixes. Reported by Sender Ghost <lightside@gmx.com>. * src/autofit/afcjk.c (af_cjk_hints_compute_edges): Catch a corner case where `edge->first' could be NULL. * src/pfr/pfrobjs.c (pfr_slot_load): Remove unnecessary test of `size'. * src/raster/ftraster.c (Draw_Sweep): Catch a corner case where `draw_right' might be NULL. * src/sfnt/ttmtx.c (tt_face_get_metrics): Fix limit test for `aadvance'. Ensure `abearing' always hold a meaningful result. * src/truetype/ttgload.c (load_truetype_glyph): Ensure `subglyph' is not NULL before accessing it. * src/truetype/ttgxvar.c (TT_Set_Named_Instance): Remove unnecessary test of `namedstyle'. * src/type42/t42parse.c (t42_parser_done): Ensure `parser->root.funcs.done' is not NULL before accessing it.

75859970

2019-02-23T10:07:09

Update all copyright notices.

f686ad46

2019-01-22T20:31:44

Update copyright years.

2b4e61e4

2018-12-12T09:36:39

Minor documentation fixes.

3e8a2283

2018-12-11T23:54:17

* src/truetype/ttgload.c (TT_Hint_Glyph): Remove useless test. `control_len' only gets its value from `n_ins' (and vice versa), which is always read as `unsigned short' and thus can't be larger than 0xFFFF.

74cdd75f

2018-11-27T17:55:40

[truetype] Fix numeric overflow (#55103). * src/truetype/ttgload.c (compute_glyph_metrics): Use `SUB_LONG'.

f262d15d

2018-10-07T07:40:37

Minor comment improvement.

a9af6914

2018-09-25T09:10:09

Fix handing of `FT_Bool'. Before this commit we had code like (FT_Bool)( globals->glyph_styles[gindex] & 0x8000) Since `FT_Bool' is defined to be an `unsigned char', the code evaluated to something like (unsigned char)( 0x8532 & 0x8000) which in turn expanded to (unsigned char)( 0x8000) and finally yielded 0x00 – i.e., false – not as expected. Problem reported and analyzed by Tony Smith <tony.smith@macro4.com>. * include/freetype/fttypes.h (FT_BOOL): Add a comparison against zero so that we always have a Boolean expression. */*: Replace castings to `FT_Bool' with calls to `FT_BOOL' where possible.

1c04eed7

2018-09-07T06:40:55

[truetype] Fix assertion failure. Triggered by https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=10212 * src/truetype/ttgload.c (load_truetype_glyph): Reintroduce `opened_frame' (removed in a change from 2018-08-26) to handle dealloation of the second frame.

4738dcc4

2018-08-26T12:03:33

Minor tracing adjustments. * src/base/ftstream.c (FT_Stream_EnterFrame, FT_Stream_ExitFrame): Trace. * src/truetype/ttgload.c (TT_Access_Glyph_Frame): Remove tracing.

6e339b8d

2018-08-26T11:59:02

[truetype] Avoid nested frames. Triggered by https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=10054 * src/truetype/ttgload.c (load_truetype_glyph): Don't use variable `opened_frame' to trace whether a frame must be closed at the end of function: This fails because `TT_Vary_Apply_Glyph_Deltas' (which gets called for space glyphs) uses a frame by itself. Instead, close the frame after loading the header, then use another frame for the remaining part of the glyph later on. Also avoid calling `tt_get_metrics' twice under some circumstances.

45524679

2018-08-22T10:31:05

[truetype] Improve legibility of `glyf' parsing. * src/truetype/ttgload.c (ON_CURVE_POINT, X_SHORT_VECTOR, Y_SHORT_VECTOR, REPEAT_FLAG, X_POSITIVE, SAME_X, Y_POSITIVE, SAME_Y, OVERLAP_SIMPLE): New macros. (TT_Load_Simple_Glyph): Use new macros to make code more readable. Remove useless adjustment of `outline->tags' elements.

a0dd16fb

2018-08-15T18:13:17

Don't use `trace_' prefix for FT_COMPONENT arguments. * include/freetype/internal/ftdebug.h (FT_TRACE_COMP, FT_TRACE_COMP_): New auxiliary macros to add `trace_' prefix. (FT_TRACE): Use `FT_TRACE_COMP'. */* (FT_COMPONENT): Updated.

720ae67f

2018-08-05T07:21:10

* src/truetype/ttgload.c (compute_glyph_metrics): Fix overflow. Reported as https://bugs.chromium.org/p/chromium/issues/detail?id=777151

9b31c446

2018-06-14T21:30:43

Replace `FT_Get_GlyphLayers' with `FT_Get_Color_Glyph_Layer'. This avoids any additional allocation of COLR related structures in a glyph slot. * include/freetype/freetype.h (FT_Glyph_Layer, FT_Glyph_LayerRec, FT_Get_GlyphLayers): Removed. * include/freetype/internal/ftobjs.h (FT_Colr_InternalRec): Removed. (FT_Slot_InternalRec): Remove `color_layers'. * include/freetype/internal/sfnt.h (TT_Load_Colr_Layer_Func): Removed. (SFNT_Interface, FT_DEFINE_SFNT_INTERFACE): Remove `load_colr_layer'. * src/base/ftobjs.c (ft_glyph_slot_done): Updated. (FT_Render_Glyph_Internal): Use `FT_Get_Color_Glyph_Layer'. (FT_Get_GlyphLayers): Removed. * src/sfnt/sfdriver.c (sfnt_interface): Updated. * src/sfnt/ttcolr.c (tt_face_load_colr_layers): Removed. * src/sfnt/ttcolr.h: Updated. * src/truetype/ttgload.c (TT_Load_Glyph): Updated.

54b332aa

2018-06-13T08:46:27

[sfnt] Separate `CPAL' and `COLR' table handling. Later on we want to support the `SVG' table also, which needs `CPAL' (but not `COLR'). * include/freetype/internal/sfnt.h (SFNT_Interface): Add `load_cpal' and `free_cpal' fields. (FT_DEFINE_SFNT_INTERFACE): Updated. * include/freetype/internal/tttypes.h (TT_FaceRec): Replace `colr_and_cpal' fields with `cpal' and `colr'. * src/sfnt/sfdriver.c (sfnt_interface): Updated. * src/sfnt/sfobjs.c (sfnt_load_face, sfnt_done_face): Updated. * src/sfnt/ttcolr.c (Colr, Cpal): Add `table' field. (ColrCpal): Removed. (tt_face_load_colr): Split off CPAL handling into... (tt_face_load_cpal): ... this new function. (tt_face_free_colr): Split off CPAL handling into... (tt_face_free_cpal): ... this new function. (tt_face_load_colr_layers, tt_face_palette_set): Updated. * src/sfnt/ttcolr.h: Updated. * src/truetype/ttgload.c (TT_Load_Glyph): Updated.

9ac9060d

2018-06-03T09:01:17

[GSoC] src/*.*: Convert block comments to `light' style. This monster commit was created by applying Nikhil's scripts `docconverter.py' and `markify.py' to all C header and source files, followed up by minor manual clean-up. No change in functionality, of course. I used commit f7419907bc6044b9b7057f9789866426c804ba82 from https://github.com/nikramakrishnan/freetype-docs.git.

3360ca58

2018-05-22T09:06:24

[truetype] Reject elements of composites with invalid glyph indices. Reported as https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=8413 * src/truetype/ttgload.c (TT_Load_Composite_Glyph): Implement it.

3c99016f

2018-05-22T07:53:49

* src/truetype/ttgload.c (TT_Load_Simple_Glyph): Trace # of points.

583dabf2

2018-05-16T20:37:43

Add function `FT_Get_GlyphLayers' to access `COLR' table data. * include/freetype/internal/ftobjs.h (FT_Glyph_LayerRec): Move this structure to... * include/freetype/freetype.h (FT_Glyph_LayerRec): ... this header file. (FT_Glyph_Layer): New typedef. Update code to use it where appropriate. * src/base/ftobjs.c (FT_Get_GlyphLayers): New function.

befee112

2018-05-15T17:01:22

[sfnt] Fix memory leak in handling `COLR' data. * src/truetype/ttgload.c (TT_Load_Glyph): Free old `layers' array before reassigning allocated memory. Only allocate `color_layers' if we don't have one already.

2dd20916

2018-05-15T09:05:53

[sfnt] If `COLR' is present, don't assume that all glyphs use it. * src/sfnt/ttcolr.c (tt_face_load_colr_layers): Return FT_Err_Ok if current glyph is not a `COLR' base glyph. * src/truetype/ttgload.c (TT_Load_Glyph): Don't allocate `color_layers' if there are no color layers.

f04d8175

2018-05-13T03:25:09

[sfnt] Preliminary support of coloured layer outlines. This commit enables OpenType's COLR/CPAL table handling; a typical application are color emojis that can be scaled to any size. If the color palette does not exist or is invalid, the rendering step rasterizes the outline instead. The current implementation assumes that the foreground is black. Enable this by defining option TT_CONFIG_OPTION_COLOR_LAYERS. There are still some issues with metrics; additionally, an API to fetch color layers is missing. * devel/ftoption.h, include/freetype/config/ftoption.h (TT_CONFIG_OPTION_COLOR_LAYERS): New macro. * include/freetype/internal/ftobjs.h (FT_Glyph_LayerRec, FT_Colr_InternalRec): New structures. (FT_Slot_InternalRec): Add `color_layers' field. * include/freetype/internal/sfnt.h (TT_Load_Colr_Layer_Func, TT_Blend_Colr_Func): New function types. (SFNT_Interface): Add `load_colr', `free_colr', `load_colr_layer', and `colr_blend' fields. * include/freetype/internal/tttypes.h (TT_FaceRec): Add `colr_and_cpal' field. * include/freetype/internal/tttags. (TTAG_COLR, TTAG_CPAL): New macros. * src/sfnt/ttcolr.c, src/sfnt/ttcolr.h: New files. * src/base/ftobjs.c (ft_glyphslot_done, FT_Render_Glyph_Internal): Handle glyph color layers. * src/sfnt/Jamfile (_sources), src/sfnt/rules.mk (SFNT_DRV_SRC): Add `ttcolr.c'. * src/sfnt/sfdriver.c: Include `ttcolr.h'. (PUT_COLOR_LAYERS): New macro. Update call to `FT_DEFINE_SFNT_INTERFACE'. * src/sfnt/sfnt.c: Include `ttcolr.c'. * src/sfnt/sfobjs.c (sfnt_load_face): Load `COLR' and `CPAL' tables. (sfnt_done_face): Updated. * src/truetype/ttgload.c (TT_Load_Glyph): Handle color layers.

43d4852e

2018-03-23T06:07:24

[truetype] Fix advance of empty glyphs in bitmap fonts (#53393). * src/truetype/ttgload.c (TT_Load_Glyph): Apply scaling to metrics for empty bitmaps.

63aaf89c

2018-02-17T10:34:47

s/sub-pixel/subpixel/.

029c9b23

2018-01-03T19:05:20

[truetype] Round offsets of glyph components only if hinting is on. * src/truetype/ttgload.c (TT_Process_Composite_Component): Implement it.

0a0c2256

2018-01-02T09:33:57

Update copyright year.

068a7a03

2017-12-18T20:34:05

* src/*/*: Only use `ft_' and `FT_' variants of stdc library stuff.

d062c54c

2017-12-18T09:41:17

[truetype] Fix previous commit. * src/truetype/ttgload.c (TT_Process_Simple_Glyph): Correctly handle unhinted phantom points, which must be properly scaled.

e7935f29

2017-12-18T07:29:57

[truetype] Don't apply HVAR and VVAR deltas twice (#52683). * src/truetype/ttgload.c (TT_Process_Simple_Glyph): Always adjust `pp1' to `pp4', except if we have an HVAR and/or VVAR table. * src/truetype/ttgxvar.c (TT_Vary_Apply_Glyph_Deltas): Handle alternative code branch identically w.r.t. presence of an HVAR and/or VVAR table.

98ba0c4a

2017-12-08T18:38:41

New `ftdriver.h' file, covering all driver modules. This reduces redundancy and increases synergy; it also reduces the number of header files. * include/freetype/config/ftheader.h (FT_DRIVER_H): New macro. (FT_AUTOHINTER_H, FT_CFF_DRIVER_H, FT_TRUETYPE_DRIVER_H, FT_PCF_DRIVER_H, FT_TYPE1_DRIVER_H): Make them aliases to FT_DRIVER_H. * include/freetype/ftautoh.h, include/freetype/ftcffdrv.h, include/freetype/ftpcfdrv.h, include/freetype/ftt1drv.h, include/freetype/ftttdrv.h: Replaced with... * include/freetype/ftdriver.h: ...this new file. (FT_CFF_HINTING_ADOBE, FT_T1_HINTING_ADOBE): Renamed to... (FT_HINTING_ADOBE): ... this new macro. (FT_CFF_HINTING_FREETYPE, FT_T1_HINTING_FREETYPE): Renamed to... (FT_HINTING_FREETYPE): ... this new macro. * src/*/*: Updated accordingly.

c18c391b

2017-11-28T12:43:45

[truetype] Improving tracing of composite glyphs. * src/truetype/ttgload.c (TT_Load_Composite_Glyph) [FT_DEBUG_LEVEL_TRACE]: Show composite glyph information.

8c92f762

2017-10-07T12:12:49

Make `FT_FACE_FLAG_VARIATION' work. * include/freetype/internal/tttypes.h (TT_Face): Remove `is_default_instance'; this can be replaced with a combination of `FT_IS_VARIATION' and `FT_IS_INSTANCE'. * src/cff/cffdrivr.c (cff_get_advances): Updated. * src/sfnt/sfdriver.c (sfnt_get_ps_name), src/sfnt/sfobjs.c (sfnt_init_face): Updated. * src/truetype/ttdriver.c (tt_get_advances), src/truetype/ttgload.c (TT_Process_Simple_Glyph, load_truetype_glyph, IS_DEFAULT_INSTANCE), src/truetype/ttgxvar.c (tt_set_mm_blend): Updated. * src/truetype/ttgxvar.c (TT_Set_MM_Blend, TT_Set_Var_Design): Handle `FT_FACE_FLAG_VARIATION'. * src/type1/t1load.c (T1_Set_MM_Blend, T1_Set_MM_Design): Handle `FT_FACE_FLAG_VARIATION'.

b45043c4

2017-08-11T09:34:20

[sfnt, truetype] Improve handling of missing sbits. Requested by Behdad. Modern bitmap-only SFNTs like `NotoColorEmoji.ttf' don't contain entries in the bitmap strike(s) for empty glyphs. Instead, they rely that a space glyph gets created from the font's metrics data. This commit makes FreeType behave accordingly. * include/freetype/fterrdef.h (FT_Err_Missing_Bitmap): New error code. * src/sfnt/ttsbit.c (tt_sbit_decoder_load_image): Change error codes to make a distinction between a missing bitmap in a composite and a simple missing bitmap. * src/truetype/ttgload.c (TT_Load_Glyph): For a missing bitmap (in a bitmap-only font), synthesize an empty bitmap glyph if metrics are available.

24e256ab

2017-08-04T08:25:31

[truetype] Fix metrics of B/W hinting in v40 mode. Phantom points are now saved outside v40 backwards compatibility mode. This fixes the jumping glyphs when switching between v35 and v40 monochrome mode. * src/truetype/ttgload.c (TT_Hint_Glyph): Fix inversed bool logic.

ce367774

2017-08-01T08:24:51

[sfnt, truetype] Minor adjustments for OpenType 1.8.2. * src/sfnt/sfobjs.c (sfnt_load_face): The units per EM value has now (tighter) limits. * src/truetype/ttgload.c (load_truetype_glyph): The new OpenType version explicitly allows all negative values for the number of contours if we have a composite glyph (this is for better backwards compatibility I guess), but it still recommends value -1.

dcd8de27

2017-06-09T11:21:58

*/*: Remove `OVERFLOW_' prefix. This increases readability.

addb2ddd

2017-06-03T21:05:42

[base, cff, truetype] Integer overflows. Reported as https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2060 https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2062 https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2063 https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2068 * src/base/ftobjs.c (ft_glyphslot_grid_fit_metrics): Use OVERFLOW_ADD_LONG and OVERFLOW_SUB_LONG. * src/cff/cf2blues.c (cf2_blues_capture), src/cff/cf2hints.c (cf2_hintmap_adjustHints): Use OVERFLOW_SUB_INT32. * src/truetype/ttgload.c (compute_glyph_metrics): User OVERFLOW_SUB_LONG. * src/truetype/ttinterp.c (Direct_Move, Direct_Move_Orig, Direct_Move_X, Direct_Move_Y, Direct_Move_Orig_X, Direct_Move_Orig_Y, Move_Zp2_Point, Ins_MSIRP): Use OVERFLOW_ADD_LONG and OVERFLOW_SUB_LONG.

a0455468

2017-05-20T07:28:46

[truetype] Always use interpreter v35 for B/W rendering (#51051). * src/truetype/ttgload.c (tt_loader_init) [TT_SUPPORT_SUBPIXEL_HINTING_MINIMAL]: Adjust `subpixel_hinting_lean', `grayscale_cleartype', and `vertical_lcd_lean' accordingly. * src/truetype/ttinterp.c (Ins_GETINFO): Updated. (TT_RunIns): Update `backward_compatibility' flag.

6e5445a2

2017-05-15T21:24:04

[truetype] Fix error handling for embedded bitmaps. Problem reported by Hin-Tak Leung <htl10@users.sourceforge.net>. * src/truetype/ttgload.c (TT_Load_Glyph) [TT_CONFIG_OPTION_EMBEDDED_BITMAPS]: Handle error if font is not scalable.

8cd31eb7

2017-05-03T23:54:29

*/*: s/backwards compatibility/backward compatibility/.

ba40054c

2017-05-02T12:32:19

[autofit] Remove `slight' auto-hint mode again. A poll on freetype-devel favoured changes directly applied to `light'. * include/freetype/freetype.h (FT_LOAD_TARGET_SLIGHT, FT_RENDER_MODE_SLIGHT): Removed. * src/autofit/afcjk.c (af_cjk_hints_init), src/autofit/aflatin.c (af_latin_hints_init), src/autofit/aflatin2.c (af_latin2_hints_init): Revert change from 2017-04-22. * src/autofit/afloader.c (af_loader_load_glyph) Remove references to FT_RENDER_MODE_SLIGHT. [AF_CONFIG_OPTION_TT_SIZE_METRICS]: Enable TrueType-like metrics unconditionally. * src/base/ftadvanc.c (LOAD_ADVANCE_FAST_CHECK): Revert change from 2017-04-22. * src/base/ftobjs.c (FT_Load_Glyph): Revert change from 2017-04-22. * src/pshinter/pshalgo.c (ps_hints_apply): Revert change from 2017-04-22. * src/smooth/ftsmooth.c (ft_smooth_render): Revert change from 2017-04-22. * docs/CHANGES: Updated.

5f18d867

2017-04-22T23:02:21

[truetype] Do linear scaling for FT_LOAD_NO_HINTING (#50470). * src/truetype/ttobs.h (TT_SizeRec): Add field `hinted_metrics' to hold hinted metrics. Make `metrics' a pointer so that `tt_glyph_load' can easily switch between metrics. * src/truetype/ttdriver.c (tt_size_request): Updated. (tt_glyph_load): Use top-level metrics if FT_LOAD_NO_HINTING is used. * src/truetype/ttgload.c (TT_Hint_Glyph, TT_Process_Simple_Glyph, TT_Process_Composite_Component, load_truetype_glyph, compute_glyph_metrics, TT_Load_Glyph): Updated. * src/truetype/ttinterp.c (TT_Load_Context): Updated. * src/truetype/ttobjs.c (tt_size_reset): Updated. * src/truetype/ttsubpix.c (sph_set_tweaks): Updated.

bb6c037b

2017-04-01T09:49:11

* src/truetype/ttgload.c: Include FT_CONFIG_CONFIG_H. Otherwise FT_UINT_TO_POINTER might not be defined. Problem reported by Alexei.

bcc74f4d

2017-03-30T13:14:43

[truetype] Allow linear scaling for unhinted rendering (#50470). * src/truetype/ttdriver.c (tt_size_request): Revert change from 2011-07-16; the intended metrics fix seems now to be implemented in a different way, making the patch unnecessary. Note that this change was usually patched out by all major GNU/Linux distributions due to heavy side effects. * src/truetype/ttgload.c (compute_glyph_metrics, TT_Load_Glyph): Refer to the metrics of the `TT_Size' object.

208e712d

2017-03-27T20:56:23

[cid, truetype] Don't use `index' as a variable name. At least on FreeBSD there is a global declaration of `index' in file `/usr/include/strings.h'. * src/cff/cf2intrp.c, src/truetype/ttgload.c: s/index/idx/ where appropriate.

683e3ad9

2017-03-21T19:49:11

[truetype] Some variable renamings. Too much local variables holding different structures were called `metrics'. * src/truetype/ttdriver.c (tt_size_select): s/metrics/size_metrics/. * src/truetype/ttgload.c (tt_get_metrics_incr_overrids, compute_glyph_metrics): s/metrics/incr_metrics/. (load_sbit_image): s/metrics/sbit_metrics/. * src/truetype/ttobjs.c (tt_size_run_fpgm): s/metrics/size_metrics/. (tt_size_init_bytecode): s/metrics/tt_metrics/. (tt_size_reset): s/metrics/size_metrics/.

7aeee3c5

2017-03-18T17:30:42

Introduce FT_UINT_TO_POINTER macro (#50560). We have to make a separate case for Windows 64's LLP64 data model. * builds/unix/ftconfig.in, builds/vms/ftconfig.h, include/freetype/config/ftconfig.h (FT_UINT_TO_POINTER): New macro. * src/truetype/ttgload.c (load_truetype_glyph): Use it.

d5bfa053

2017-03-17T21:47:54

Fixes for conditional compilation. * src/autofit/afcjk.c, src/autofit/afindic.c: Include `afcjk.h' earlier. * src/sfnt/sfobjs.c (sfnt_init_face): Put `memory' variable into TT_CONFIG_OPTION_GX_VAR_SUPPORT block. (sfnt_done_face): Protect some code with TT_CONFIG_OPTION_GX_VAR_SUPPORT. * src/sfnt/ttsbit.c (tt_face_load_sbix_image): Remove compiler warning. * src/truetype/ttgload.c (TT_Load_Simple_Glyph): Put `tmp' variable into TT_USE_BYTECODE_INTERPRETER block. (tt_loader_init): Put `error' variable into TT_USE_BYTECODE_INTERPRETER block.

01f315f0

2017-02-23T14:24:01

[truetype] Minor improvement. * src/truetype/ttgload.c (TT_Process_Simple_Glyph, load_truetype_glyph): Remove unnecessary tests.

563ae780

2017-01-04T20:16:34

Update copyright year.

8982405f

2017-01-03T09:46:19

[truetype] Various minor fixes. * src/truetype/ttgload.c (TT_Load_Simple_Glyph): Check instruction size only if we do native hinting. (TT_Load_Glyph): Trace returned error code. * src/truetype/ttobjs.c (tt_size_run_fpgm, tt_size_run_prep): Trace returned error code. (tt_size_ready_bytecode): Don't run `prep' table if `fpgm' table is invalid.

4441f7b2

2016-12-26T17:08:17

Replace `foo == NULL' and `foo != NULL' with `!foo' and `foo', resp. Other minor formatting.

e6a429e2

2016-12-21T20:27:48

[cff, truetype] Another try for #49829. * src/cff/cffdrivr.c: Don't include `FT_SERVICE_METRICS_VARIATIONS_H'. (cff_get_advances): Use `ttface->variation_support'. * src/truetype/ttdriver.c (tt_get_advances): Use `ttface->variation_support'. * src/truetype/ttgload.c (TT_Process_Simple_Glyph, load_truetype_glyph): Use `ttface->variation_support'.

cc576f80

2016-12-20T11:37:42

[truetype] Fix linear metrics of GX variation fonts. When asking for an unhinted non-default variations, `linearVertAdvance' is currently the value from the `hmtx' table instead of the actual value after applying the variation. `HVAR' support fixes this, but fonts will exist without that table and will need sane fallback. * src/truetype/ttgload.c (TT_Process_Simple_Glyph, load_truetype_glyph): Implement linear advance adjustments if `HVAR' or `VVAR' tables are missing.

eb6d0208

2016-12-18T09:29:58

Minor GX code shuffling. * include/freetype/internal/tttypes.h (TT_Face): Move `is_default_instance' into TT_CONFIG_OPTION_GX_VAR_SUPPORT block. * src/sfnt/sfobjs.c (sfnt_init_face): Updated. * src/truetype/ttgload.c (IS_DEFAULT_INSTANCE): New macro. (TT_Load_Glyph): Use it.

5d664b6d

2016-12-17T20:47:42

Use FT_SET_ERROR where useful. Other minor code formatting.

2067c698

2016-09-29T19:49:07

[truetype] Disallow bitmap strokes for non-default instances. Also speed up access of default instances if GX variations are active. * include/freetype/internal/tttypes.h (TT_FaceRec): Add `is_default_instance' member. * src/sfnt/sfobjs.c (sfnt_init_face): Initialize `is_default_instance'. * src/truetype/ttgload.c (TT_Process_Simple_Glyph, load_truetype_glyph): Add test for default instance. (TT_Load_Glyph): Load embedded bitmaps for default instance only. * src/truetype/ttgxvar.c (TT_Set_MM_Blend): Compute `is_default_instance'.

kc3-lang/freetype/src/truetype/ttgload.c

src/truetype/ttgload.c

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