kc3-lang/freetype/src/psaux/psft.c
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Log
| Author | Commit | Date | CI | Message |
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8eab5110 | 2023-12-14 06:59:05 | [CFF] Extract `BlueValues` as `Fixed` rather than `Int`. This is a follow-up to commit 26a7f047, [cff] Make blend operator work with floats in private dicts. which addressed the 'party baseline' bug. However, the reporting user indicated that the default location and some other points in design space rendered OK, but other points in design space still had problems. The most obvious issue being that the x-heights of lower-case letters did not align; see https://github.com/adobe-fonts/source-serif/issues/121#issuecomment-1773794136 After some analysis we determined that this was due to an interaction between `BlueValue` rounding and the zone-based algorithm. In short, for a point to be considered in a zone it must fall within the bounds of the zone. (There is a slop factor in some cases, but only a very small one.) In the Adobe-contributed side of the code, point values are not integer-rounded, instead they're kept as (some form of) fixed. Rounding just the `BlueValues` means that points that need to be considered within a zone will fall outside of it at some points in design space. The majority of this patch changes the storage and parsing of `BlueValues` to keep them as `FT_Fixed`. No significant code changes were needed because the values are converted to `Fixed` anyway when stored in `CF_BlueRec`. No attempt was made to address problems in the older pshinter code beyond converting the values from `FT_Fixed` to `FT_Short` when copying the private dictionary. (However, as the point values are also rounded in that code, the problem is much less likely to occur, although inconsistency between rounding and truncation could cause an analogous problem.) * include/freetype/internal/cfftypes.h (CFF_PrivateRec): Use `FT_Fixed` for `blue_values`, `other_blues`, `family_blues`, and `family_other_blues`. * src/cff/cffload.c (cff_blend_doBlend): Updated. * src/cff/cffobjs.c (CFF_fixedToInt): New macro. (cff_make_private_dict): Use it. * src/cff/cffparse.h (cff_kind_delta_fixed): New enum value. * src/cff/cffparse.c (do_fixed): Updated. (CFF_FIELD_DELTA, CFF_FIELD_DELTA_FIXED, CFF_DELTA_KIND): New set of macros, replacing `CFF_FIELD_DELTA`. (cff_parser_run): Updated to handle fixed-float deltas. * src/cff/cfftoken.h: Updated to use `CFF_FIELD_DELTA_FIXED` for blue values. * src/psaux/psblues.c (cf2_blueToFixed): Removed, no longer needed. (cf2_blues_init): Updated. * src/pxaux/psft.c, src/pxaux/psft.h (cf2_getBlueValues, cf2_getOtherBlues, cf2_getFamilyBlues, cf2_getFamilyOtherBlues): Updated signatures. * src/psaux/psobjs.c (t1_make_subfont): Updated. | |
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0bcb664d | 2022-12-20 16:38:39 | [psaux] Delay the upem validity assertion. Fixes #1194. * src/psaux/psft.c (cf2_getUnitsPerEm): Remove the upem assert. (cf2_checkTransform): Assert the upem validity after checking the scale. | |
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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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e1339133 | 2020-06-08 13:31:55 | 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. | |
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5b1a37af | 2020-02-25 11:08:11 | Fix for CFF space glyph regression (#57541). * src/psaux/psft.c (cf2_decoder_parse_substrings): Replace early-out with FT_OFFSET. | |
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8cee1dde | 2019-12-17 14:12:38 | Fix more UBSan warnings on adding offset to nullptr (#57432). * src/truetype/ttinterp.c (Ins_LOOPCALL), src/psaux/psft.c (cf2_initLocalRegionBuffer): Use `FT_OFFSET'. | |
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551bd3a9 | 2019-12-03 11:52:48 | More nullptr offset UBSan warnings (#57331, #57347). * src/autofit/afcjk.c (af_cjk_hints_compute_segments), src/psaux/psft.c (cf2_getSeacComponent), src/truetype/ttinterp.c (Ins_UNKNOWN): Use `FT_OFFSET'. | |
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4270e9f3 | 2019-11-27 11:38:45 | Avoid more nullptr offset UBSan warnings (#57316). * src/base/ftoutln.c (FT_Outline_Transform): Bail on empty points. * src/cff/cffload.c (cff_subfont_load): Use `FT_OFFSET'. * src/psaux/psft.c (cf2_decoder_parse_substrings): Early out if `charstring_base' or `charstring_len' are null. * src/sfnt/ttload.c (tt_face_load_name): Use `FT_OFFSET'. | |
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9ac9060d | 2018-06-03 09:01:17 | [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. | |
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49c5e24a | 2018-05-15 21:55:28 | [psaux] Fix compiler warning (#53915). * src/psaux/psft.c (cf2_freeT1SeacComponent): Do it. | |
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63b91548 | 2017-12-07 14:33:44 | Fix `make multi'. * include/freetype/internal/fttrace.h: Remove unused tracing macros. s/pshalgo2/pshalgo/. Add `trace_cffdecode'. * src/pshinter/pshalgo.c (FT_COMPONENT): Updated. * src/cff/cffload.c: Include FT_INTERNAL_POSTSCRIPT_AUX_H. * src/cff/cffobjs.c: Include FT_SERVICE_METRICS_VARIATIONS_H and FT_SERVICE_CFF_TABLE_LOAD_H. * src/cid/cidriver.c: Include FT_INTERNAL_POSTSCRIPT_AUX_H. * src/psaux/cffdecode.c: Include FT_FREETYPE_H and FT_INTERNAL_DEBUG_H. (FT_COMPONENT): Define. * src/psaux/cffdecode.h: Include FT_INTERNAL_POSTSCRIPT_AUX_H. * src/psaux/psauxmod.h: Include FT_INTERNAL_POSTSCRIPT_AUX_H. Declare `cff_builder_funcs' and `ps_builder_funcs'. * src/psaux/psft.c: Include `psobjs.h' and `cffdecode.h'. * src/psaux/psobjs.c : Include `psauxmod.h'. | |
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bec14f68 | 2017-11-22 18:57:56 | * src/psaux/psft.c (cf2_setGlyphWidth): Check format before setting. Reported as https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=4377 | |
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b9bd2d14 | 2017-11-22 12:32:47 | [psaux] Fix CFF advance widths. (#52466) Glyph advance widths were being written to the new `PS_Decoder' but not saved to the underlying format specific decoder. This caused pure CFF fonts to have bad advance width. * include/freetype/internal/psaux.h (PS_Decoder): Change `glyph_width' field to pointer. Remove unused fields. * src/psaux/psobjs.c (ps_decoder_init): Change `glyph_width' from copy to reference. Remove unused. * src/psaux/psft.c (cf2_setGlyphWidth): Update code. | |
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179caf5a | 2017-10-01 01:39:27 | [psaux] Formatting, minor fixes, whitespace, copyright notices. | |
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4cdbac05 | 2017-09-25 09:05:00 | Fix compiler warnings. * src/psaux/psft.c (cf2_initLocalRegionBuffer): Remove redundant test. * src/psaux/psintrp.c (cf2_interpT2CharString) <cf2_escCALLOTHERSUBR>: Add casts. * src/psaux/psobjs.c (ps_decoder_init): Add cast. | |
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a1a6a1f6 | 2017-09-25 08:31:52 | Minor fixes. * include/freetype/internal/psaux.h, src/psaux/psobjs.{c,h}: Rearrange `ps_builder_init' arguments to conventional order. * src/psaux/psft.c (cf2_decoder_parse_charstrings): Add a check and notice for `SubFont' in Type 1 mode. | |
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6e7da50b | 2017-09-25 08:29:38 | Documentation fixes. | |
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d813b5da | 2017-09-25 08:04:09 | Extend Adobe interpreter (seac). This concludes the changes needed to add Type 1 support. * src/psaux/psintrp.c: Update includes. (cf2_interpT2CharString) <cf2_escSEAC>: Implement this similarly to implied seac for CFF. * src/psaux/t1decode.c (t1_lookup_glyph_by_stdcharcode_ps): New function to look up the glyph index. * src/psaux/psft.c (cf2_getT1SeacComponent, cf2_freeT1SeacComponent): New functions to get the charstrings for seac components. * src/psaux/t1decode.h, src/psaux/psft.h: Update declarations. | |
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1e4d3dc8 | 2017-09-25 07:47:10 | Extend Adobe interpreter (callsubr). * src/psaux/psintrp.c (cf2_interpT2CharString) <cf2_cmdCALLSUBR>: Type 1 mode. * src/psaux/psft.c (cf2_initLocalRegionBuffer): Add Type 1 mode. | |
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cb3f4c61 | 2017-09-25 06:44:51 | Add missing objects for Type 1 (1/2). Move `CF2_Font' instance to `PS_Decoder'. This is the context for the interpreter and since it is currently stored in `CFF_Font', is unavailable in Type 1 mode. * include/freetype/internal/psaux.h (T1_Decoder, PS_Decoder): New `cf2_instance' field. * src/psaux/psdecode.c (ps_decoder_init): Copy `cf2_instance' to `PS_Decoder'. * src/psaux/t1decode.c (t1_decoder_done): Add finalization code. * src/psaux/psft.c (cf2_decoder_parse_charstrings): Update accesses. | |
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645d1b86 | 2017-09-25 06:28:25 | Move and rename `CFF_Driver'. This is so that we can use the same hinting engine parameters for Type 1. * include/freetype/internal/cffotypes.h (CFF_Driver): Rename and move to... * include/freetype/internal/psaux.h (PS_Driver): ...here. * src/cff/cffdrivr.c, src/cff/cffgload.c, src/cff/cffload.c, src/cff/cffobjs.c, src/cff/cffobjs.h, src/psaux/psft.c, src/psaux/psobjs.c: Update references. | |
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d23affe1 | 2017-09-25 06:22:52 | Reorganize object fields. Make some fields more generic, so that we can access them the same way regardless of Type 1 or CFF. * include/freetype/internal/psaux.h (PS_Builder): Change `TT_Face' to `FT_Face'. Remove unused fields. * src/psaux/psft.c: Update all accesses of `PS_Builder.face'. Add some asserts to guard against casting `T1_Face' as `TT_Face'. * src/type1/t1objs.h (T1_GlyphSlot): Reorder fields to follow `CFF_GlyphSlot', so that we can pretend they are the same in the interpreter. * src/psaux/psobjs.c (ps_builder_init, ps_builder_add_point): Updated with above changes. | |
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9428ee42 | 2017-09-25 06:15:46 | Prepare for Type 1 mode. Add some checks for Type 1 data passing through. * src/psaux/psfont.h (CF2_Font): Add `isT1' flag. * src/psaux/psfont.c (cf2_font_setup): Skip the variations and blend code which is not applicable for Type 1. * src/psaux/psft.c (cf2_decoder_parse_charstrings): Avoid accessing `decoder->cff' in Type 1 mode. Copy `is_t1' flag to `CF2_Font'. | |
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0589e3c0 | 2017-09-25 06:10:20 | Use the new objects. * include/freetype/internal/psaux.h, src/psaux/psauxmod.c: Fix switching between new and old engines. * src/cff/cffgload.c, src/cff/cffparse.c: Update calls. * src/psaux/psblues.c, src/psaux/psfont.c, src/psaux/psfont.h, src/psaux/psft.c, src/psaux/psft.h, src/psaux/psintrp.c: Update all to use new objects. | |
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766f529a | 2017-09-24 22:40:07 | Rename files. Replace the `cf2' file name prefix with `ps' as the Adobe engine will be used for both PostScript Types 1 and 2 (CFF) instead of just CFF. s/cf2/ps/ for all following. * src/psaux/cf2*: Rename files. * src/psaux/*: Update includes. * src/psaux/Jamfile (_sources), src/psaux/rules.mk (PSAUX_DRC_SRC, PSAUX_DRV_H): Update file references. |