kmx git

Commit	Date	Message
d6bc524b	2013-03-11T09:50:53	Always use module related error codes. * src/cff/cffobjs.c (cff_face_init), src/type1/t1objs.c (T1_Face_Init), src/type42/t42objs.c (T42_Face_Init): Use `FT_ERROR_BASE'. * src/type1/t1load.c (parse_encoding): Use T1_Err_Unknown_File_Format.
737bbb04	2013-03-08T21:25:45	Minor.
2d882540	2013-03-08T21:23:45	[cff] Set `linear{Hori,Vert}Advance' for embedded bitmaps also. * src/cff/cffgload.c (cff_slot_load): Implement it.
2ba18ba1	2013-02-22T23:58:57	[base] Fix commit ab02d9e8. * src/base/ftbbox.c (BBox_Cubic_Check): Change scaling to msb of 22.
f9434dba	2013-02-19T21:27:18	[base] New bisecting BBox_Cubic_Check (disabled). * src/base/ftbbox.c (BBox_Cubic_Check): New bisecting algorithm for extremum search built around simple condition that defines which half contains the extremum.
0e536676	2013-02-18T20:41:56	[tools] Update BBox testing tool. * src/tools/test_bbox.c: Add another cubic outline with exact BBox. (REPEAT): Increase the number of benchmarking cycles. (profile_outline): Tweak output formatting.
bcca86af	2013-02-08T12:49:41	Fix Savannah bug #38235. * builds/unix/configure.raw: Don't generate `freetype-config' and `freetype.pc'. * builds/unix/unix-def.in (FT2_EXTRA_LIBS, LIBBZ2, LIBZ, build_libtool_libs, ft_version): New variables to be substituted. (freetype-config, freetype.pc): New rules to generate those files. * builds/unix/freetype-config.in: Remove code for handling `rpath'. The use of $rpath has been accidentally removed in a patch from 2009-12-22, and apparently noone has missed it since. Use `%' instead of `@' as a variable substitution marker. Use quotes. * builds/unix/freetype.in: Use `%' instead of `@' as a variable substitution marker. Use quotes.
a2c7eb18	2013-02-07T19:49:12	* src/truetype/ttobjs.c (tt_size_run_prep): Reset more GS variables. BTW, Greg agrees that the OpenType specification is missing the list of GS variables which will always be reset to the default values after the `prep' table has been executed.
bfcc375b	2013-02-06T08:47:29	* src/truetype/ttobjs.c (tt_size_run_prep): Reset reference points. Up to now, we simply took a snapshot of the Graphics State after the `prep' table has been executed, and right before a glyph's bytecode was run it got reloaded. However, as Greg Hitchcock has told us in private communication, reference points get reset to zero in the MS rasterizer and we follow in due course. While reasonable, this is undocumented behaviour. Most notably, this fixes the rendering of Arial's `x' glyph in subpixel hinting mode.
00dfa330	2013-02-05T19:23:16	[truetype] A better fix for Savannah bug #38211. * src/truetype/ttinterp.c (Ins_IP): Implement identical behaviour to MS rasterizer if rp1 == rp2 (confirmed by Greg Hitchcock).
0eb6316f	2013-02-01T20:24:00	[pcf] Streamline parsing of PCF encoding table. * src/pcf/pcfread.c (pcf_get_encodings): Use simpler double for-loop. Reallocate array instead of using temporary storage.
3b1f206b	2013-02-01T23:45:04	Fix Savannah bug #38227. * builds/unix/freetype-config.in: Set LC_ALL.
30f1e6ca	2013-02-01T14:50:08	Fix Savannah bug #38221. This complements commit 83c0ebab. * src/base/ftcalc.c (FT_MulDiv_No_Round): Don't enclose with `TT_USE_BYTECODE_INTERPRETER'.
40633205	2013-02-01T12:55:44	[truetype] Fix Savannah bug #38211. * src/truetype/ttinterp.c (Ins_IP): Make FreeType behave identical to other interpreters if rp1 == rp2 (which is invalid).
6b9034f0	2013-01-28T13:56:23	Formatting, comment improvements.
ab02d9e8	2013-01-28T06:35:19	[base] Small optimization of BBox calculation. * src/base/ftbbox.c (BBox_Cubic_Check): Use FT_MSB function in scaling algorithm.
c574d72c	2013-01-26T17:40:44	[truetype] Minor formatting fix.
97ba5109	2013-01-26T17:05:40	[truetype] Fix rasterizer_version logic in sph.
a5fe3595	2013-01-26T12:29:52	[truetype] Align more to ClearType whitepaper for sph.
610ee58e	2013-01-25T23:33:00	[base] Fix broken emboldening at small sizes. * src/base/ftoutln.c (FT_Outline_EmboldenXY): Do not attempt to normalize zero-length vectors.
f41ee054	2013-01-25T16:41:24	Fix Savannah bug #38167. This fixes commit 83c0ebab from 2012-06-27. * src/truetype/ttinterp.h: s/TT_CONFIG_OPTION_BYTECODE_INTERPRETER/TT_USE_BYTECODE_INTERPRETER/.
ba931be2	2013-01-25T00:57:09	[sfnt] Fix broken pointer overflow checks. Many compilers such as gcc and clang optimize away pointer overflow checks `p + n < p', because pointer overflow is undefined behavior. Use a safe form `n > p_limit - p' instead. Also avoid possible integer overflow issues, for example, using `num_glyphs > ( p_limit - p ) / 2' rather than `num_glyphs * 2' given a large `num_glyphs'. * src/sfnt/ttsbit0.c (tt_sbit_decoder_load_image): Implement it.
817caa9f	2013-01-25T00:40:56	Fix `make multi' * src/base/ftoutln.c, src/base/fttrigon.c: Include FT_INTERNAL_CALC_H.
72447195	2013-01-25T00:36:35	[truetype] Fix C++ compilation. * src/truetype/ttsubpix.h: Updated. (SPH_X_SCALING_RULES_SIZE): Moved and renamed to... * src/truetype/ttsubpix.c (X_SCALING_RULES_SIZE): This. (sph_X_SCALING_Rules): Removed. (scale_test_tweak): Make function static. (sph_test_tweak_x_scaling): New function. * src/truetype/ttgload.c (TT_Process_Simple_Glyph): Updated.
e9f330ad	2013-01-24T09:12:56	[base] Make `FT_Hypot' really internal. * include/freetype/fttrigon.h (FT_Hypot): Move to... * include/freetype/internal/ftcalc.h: This file. * src/base/fttrigon.c (FT_Hypot): Move to... * src/base/ftcalc.c: This file. Include FT_TRIGONOMETRY_H. * src/truetype/ttgload.c: Don't include FT_TRIGONOMETRY_H.
87dc86d6	2013-01-24T08:39:43	[truetype] Revert change from 2013-01-22. FreeType's `height' value is the baseline-to-baseline distance... * src/truetype/ttobjs.c (tt_size_reset): Undo.
b6de8e66	2013-01-23T23:31:41	[base, truetype] New internal FT_Hypot function. * include/freetype/fttrigon.h (FT_Hypot): Declare it. * src/base/fttrigon.c (FT_Hypot): Define it. * src/truetype/ttgload.c (TT_Process_Composite_Component): Use it instead of explicit expressions. * src/truetype/ttinterp.c (Current_Ratio, Normalize): Use it instead of TT_VecLen. (TT_VecLen): Removed.
da11e5e7	2013-01-23T20:11:40	[base] Fix integer overflow. * src/base/ftoutln.c (FT_Outline_EmboldenXY): Normalize incoming and outgoing vectors and use fixed point arithmetic.
e1a2ac19	2013-01-23T19:51:28	[base] Fix integer overflow. * src/base/ftoutln.c (FT_Outline_Get_Orientation): Scale the coordinates down to avoid overflow.
869fb8c4	2013-01-23T19:43:28	[base] Split out MSB function. * src/base/fttrigon.c (ft_trig_prenorm): Borrow from here. * include/freetype/internal/ftcalc.h (FT_MSB): Declare here. * src/base/ftcalc.c (FT_MSB): Define here.
e0469372	2013-01-22T11:07:07	[truetype] Fix font height. * src/truetype/ttobjs.c (tt_size_reset): The Windows rendering engine uses rounded values of the ascender and descender to compute the TrueType font height.
cd3f871e	2013-01-16T19:56:08	[sfnt] Fix optimized sbit loader. It was not taking bit_depth into consideration when blitting! * src/sfnt/ttsbit0.c (tt_sbit_decoder_load_byte_aligned, * tt_sbit_decoder_load_bit_aligned): Handle bit depth.
3a406127	2013-01-16T19:48:31	[truetype] Improve sub-pixel code. This patches fixes many issues with the ttsubpix implementation. 1. Data tables are defined, instead of declared, in the header, and thus copied into each source file that includes it. 2. These tables were defined as global, mutable, visible variables, and thus costing private RAM to every process that loads the library (> 50 KB / process, this is huge!). Additionally, this also made the library export the symbols completely needlessly. 3. Missing `sph_' and `SPH_' prefixes to some of the definitions. Note that this doesn't try to fix the incredibly inefficient storage format for the data tables used by the code. This one will require another pass in the future. * src/truetype/ttinterp.h (MAX_NAME_SIZE, MAX_CLASS_MEMBERS): Renamed to... (SPH_MAX_NAME_SIZE, SPH_MAX_CLASS_MEMBERS): This. Update all users. (SPH_TweakRule, SPH_ScaleRule): Decorate with `const' where appropriate. (Font_Class): Rename to... (SPH_Font_Class): This. Decorate with `const' where appropriate. * src/truetype/ttsubpix.h (scale_test_tweak, sph_test_tweak): Decorate arguments with `const' where appropriate. Move font tweaking tables to... * src/truetype/ttsubpic.c: This file and decorate them with `static' and `const' where appropriate. (X_SCALING_Rules, X_SCALING_RULES_SIZE): Renamed to... (spu_X_SCALING_Rules, SPH_X_SCALING_RULES_SIZE): This. Update all users.
0e0fdc5d	2013-01-12T23:05:55	[truetype] Improve accuracy of normalization of short vectors. Unit vector components are stored as 2.14 fixed-point numbers. In order to calculate all 14 bits accurately, a short vector to be normalized has to be upscaled to at least 14 bits before its length is calculated. This has been safe since accurate CORDIC algorithms were adopted. * src/truetype/ttinterp.c (Normalize): Scale short vectors by 0x4000.
081aba39	2013-01-12T22:36:37	[truetype] Kill very old vector normalization hacks. Back in the days, vector length calculations were not very accurate and the vector normalization function, Normalize, had to meticulously correct the errors for long vectors [commit b7ef2b096867]. It was no longer necessary after accurate CORDIC algorithms were adopted, but the code remained. It is time to kill it. * src/truetype/ttinterp.c (Normalize): Remove error compensation. (TT_VecLen): Remove any mention of old less accurate implementation.
e4ecce3b	2013-01-11T09:02:22	Disable FT_CONFIG_OPTION_OLD_INTERNALS. After the next release we are going to remove the code completely. * devel/ftoption.h, include/freetype/config/ftoption.h (FT_CONFIG_OPTION_OLD_INTERNALS): Comment out. * docs/CHANGES: Document it.
53c0cb59	2013-01-11T08:29:22	Typos, whitespace.
ad9d5c97	2013-01-10T22:29:07	[base] Update the overflow protection bit. The recent optimizations of CORDIC iterations drastically reduce the expansion factor. The vector components with MSB of 29 are now safe from overflow. * src/base/fttrigon.c (FT_TRIG_SAFE_MSB): New macro. (ft_trig_prenorm): Use it and remove dead code.
6b83a367	2013-01-09T00:25:32	[base, pshinter] Use FT_ABS, FT_MIN, and FT_MAX for readability. * src/base/ftbbox.c: Updated. * src/base/ftobjs.c: Updated. * src/base/fttrigon.c: Updated. * src/pshinter/pshalgo.c: Updated. * src/pshinter/pshrec.c: Updated.
09dbb059	2013-01-08T23:29:44	[base] Clean up trigonometric core. * src/base/fttrigon.c: Document the algorithm in a large comment. (FT_TRIG_COSCALE): Remove macro. (FT_Tan: Use `FT_TRIG_SCALE' instead. (FT_Cos, FT_Vector_Unit): Ditto and round the return values.
5dd9657f	2013-01-02T23:45:14	[base] Use rounding in CORDIC iterations. * src/base/fttrigon.c (ft_trig_pseudo_rotate, ft_trig_pseudo_polarize): Improve accuracy by rounding.
b4ac30b0	2013-01-02T22:21:37	[base] Reduce trigonometric algorithms. After we get within 45 degrees by means of true 90-degree rotations, we can remove initial 45-degree CORDIC iteration and start from atan(1/2) pseudorotation, reducing expansion factor thereby. * src/base/fttrigon.c (FT_TRIG_SCALE, FT_TRIG_COSCALE): Update macros. (ft_trig_pseudo_rotate, ft_trig_pseudo_polarize): Update. * src/tools/cordic.py: Bring up to date with trigonometric core. * docs/CHANGES: Old typo.
50e634ab	2013-01-02T20:31:56	* src/pshinter/pshalgo.h: Remove unused code.
7d6dc907	2012-12-27T01:08:24	* src/truetype/ttgload.c (tt_loader_init): Add more tracing.
2ef0a198	2012-12-23T21:14:37	[type1] Fix handling of /FontBBox in MM fonts. Problem reported by Del Merritt <del@alum.mit.edu> If we have /FontBBox { { 11 12 13 14 15 16 17 18 } { 21 22 23 24 25 26 27 28 } { 31 32 33 34 35 36 37 38 } { 41 42 43 44 45 46 47 48 } } in the /Blend dictionary, then the first BBox is { 11 21 31 41 }, the second { 12 22 32 42 }, etc. * include/freetype/internal/psaux.h (T1_FieldType): Add `T1_FIELD_TYPE_MM_BBOX' (for temporary use). * src/psaux/psobjs.c (ps_parser_load_field) <T1_FIELD_TYPE_MM_BBOX>: Implement it.
cbf3fb39	2012-12-21T14:20:25	* src/tools/cordic.py: Bring up to date with trigonometric core.
3ffb822e	2012-12-21T16:45:27	Check parameters of `FT_Outline_New'. Problem reported by Robin Watts <robin.watts@artifex.com>. * src/base/ftoutln.c (FT_Outline_New_Internal): Ensure that `numContours' and `numPoints' fit into FT_Outline's `n_points' and `n_contours', respectively.
c6a66b49	2012-12-20T08:31:56	* Version 2.4.11 released. ========================== Tag sources with `VER-2-4-11'. * docs/CHANGES, docs/release: Updated. * docs/VERSION.DLL: Update documentation and bump version number to 2.4.11. * README, Jamfile (RefDoc), builds/win32/vc2005/freetype.vcproj, builds/win32/vc2005/index.html, builds/win32/vc2008/freetype.vcproj, builds/win32/vc2008/index.html, builds/win32/vc2010/freetype.vcxproj, builds/win32/vc2010/index.html, builds/win32/visualc/freetype.dsp, builds/win32/visualc/freetype.vcproj, builds/win32/visualc/index.html, builds/win32/visualce/freetype.dsp, builds/win32/visualce/freetype.vcproj, builds/win32/visualce/index.html, builds/wince/vc2005-ce/freetype.vcproj, builds/wince/vc2005-ce/index.html, builds/wince/vc2008-ce/freetype.vcproj, builds/wince/vc2008-ce/index.html: s/2.4.10/2.4.11/, s/2410/2411/. * include/freetype/freetype.h (FREETYPE_PATCH): Set to 10. * builds/unix/configure.raw (version_info): Set to 16:0:10. * builds/toplevel.mk (dist): Don't include `.mailmap'.
d7383b7b	2012-12-20T01:03:22	[base] Improve trigonometric core. FreeType used to rely on a 24-step iteration CORDIC algorithm to calculate trigonometric functions and rotate vectors. It turns out that once the vector is in the right half-plane, the initial rotation by 63 degrees is not necessary. The algorithm is perfectly capable to converge to any angle starting from the second 45 degree rotation. This patch removes the first rotation and makes it a 23-step CORDIC algorithm. * src/base/fttrigon.c (FT_TRIG_SCALE, FT_TRIG_COSCALE): Update macro values. (ft_trig_pseudo_rotate, ft_trig_pseudo_polarize): Remove initial rotation.
768590a9	2012-12-20T06:08:23	* src/base/ftobjs.c (ft_property_do): Fix compiler warning.
32fc416f	2012-12-19T23:05:32	* src/base/ftrfork.c (FT_Raccess_Guess): Switch to FT_Int counters.
06174dbb	2012-12-19T22:46:27	[base] Clean up trigonometric core. * src/base/fttrrigon.c (ft_trig_pseudo_polarize): Align algorithm with `ft_trig_pseudo_rotate'.
1749ae20	2012-12-18T07:23:09	[truetype] Minor performance enhancement.
94b79e74	2012-12-17T19:17:30	[truetype] Remove unusued code and variables.
a9f6f85e	2012-12-17T09:08:09	Various compiler warning fixes. * include/freetype/internal/ftserv.h (FT_SERVICE_UNAVAILABLE): Use `logical not' operator instead of negation. The idea is that `~' returns exactly the data type enforced by the cast to a pointer (be it 32bit or 64bit or whatever), while a negative integer has not this flexibility. * src/cache/ftccmap.c (FTC_CMAP_UNKNOWN): Ditto. * src/truetype/ttgxvar.c (ALL_POINTS, TT_Get_MM_Var): Ditto. * src/type/t1load.c (T1_Get_MM_Var): Ditto. (parse_blend_axis_types): Use cast. * src/bdf/bdflib.c (_bdf_readstream): Use cast.
71f242c2	2012-12-16T19:52:01	[truetype ] Remove unusued code. Add minor fixes.
309b8b31	2012-12-16T19:08:36	[sfnt] Fix Savannah bug #37936. * src/sfnt/ttload.c (tt_face_load_gasp): Avoid memory leak.
8ac5c5c8	2012-12-15T23:33:55	[base] Fix 11-year old bug. Since the initial commit (ebe85f59) the value of FT_TRIG_SCALE has always been slightly less than the correct value, which has been given in the comment as a hexadecimal. As a result, vector lengths were underestimated and rotated vectors were shortened.
7f2e4f4f	2012-12-15T09:39:41	[bdf] Fix Savannah bug #37907. * src/bdf/bdflib.c (_bdf_parse_glyphs) <ENCODING>: Normalize negative second parameter of `ENCODING' field also.
07bdb6e2	2012-12-15T02:02:23	[bdf] Fix Savannah bug #37906. * src/bdf/bdflib.c (_bdf_parse_glyphs): Use correct array size for checking `glyph_enc'.
9b6b5754	2012-12-15T01:34:41	[bdf] Fix Savannah bug #37905. * src/bdf/bdflib.c (_bdf_parse_start): Reset `props_size' to zero in case of allocation error; this value gets used in a loop in `bdf_free_font'.
65d65721	2012-12-10T06:59:29	[truetype] Scale F_dot_P down. The dot product between freeVector and projVector or cosine of the angle between these FT_F2Dot14 unit vectors used to be scaled up by 4 and routinely occupied 32 bits in an FT_Long field F_dot_P. This patch scales the value down by 2^14 instead, which simplifies its use throughout the bytecode interpreter. This does not lead to the loss of precision because the lower bits are unreliable anyway. Consider two unit vectors (1,0) and (.6,.8) for which the true value of F_dot_P is .6 * 0x40000000 = 0x26666666. These vectors are stored as (0x4000,0) and (0x2666,0x3333) after rounding and F_dot_P is assigned 0x26660000. The lower bits were already lost while rounding the unit vector components. Besides code simplification, this change can lead to better performance when FT_MulDiv with the scaled-down F_dot_P is less likely to use the costly 64-bit path. We are not changing the type of F_dot_P to FT_F2Dot14 at this point. * src/truetype/ttinterp.c (Compute_Funcs): Scale F_dot_P down by 14 bits and modify its use accordingly. (Direct_Move, Direct_Move_Orig, Compute_Point_Displacement): Modify the use of F_dot_P field. * src/truetype/ttobjs.c (tt_size_run_fpgm): Change arbitrary assignment of F_dot_P to its theoretical maximum in case we decide to scale back its type later.
06d6916c	2012-12-09T00:07:51	[type1] Another fix for 2012-09-17 commit. * src/type1/t1parse.c (T1_Get_Private_Dict) <found>: Correctly set `limit' value.
cece4d3b	2012-12-06T20:23:38	[truetype] Tweak the previous commit. * src/truetype/ttinterp.c (Current_Ratio): Put unit vector components as the second TT_MulFix14 arguments. This is required on 16-bit systems.
5ad05f97	2012-12-06T00:27:20	[truetype] Microoptimizations in bytecode interpreter. * src/truetype/ttinterp.c (TT_DivFix14): New macro. (Normalize): Use it here. (Current_Ratio): Use TT_MulFix14 instead of FT_MulDiv. (Ins_SHPIX): Cancel out two TT_MulFix14 calls.
b50088bd	2012-12-05T23:05:47	[truetype] Cosmetic improvement in bytecode interpreter. * src/truetype/ttinterp.c: Use explicit calls to FT_MulDiv, FT_MulFix, and FT_DivFix instead of macros.
54d43a39	2012-12-05T11:14:41	[pshinter] Clamp BlueScale value. This is Savannah bug #37856. * src/pshinter/pshglob.c (psh_calc_max_height): New function. (psh_globals_new): Use it to limit BlueScale value to `1 / max_of_blue_zone_heights'.
4ae9cbb0	2012-12-01T23:36:02	[truetype, type1] Revise the use of FT_MulDiv. * src/truetype/ttgxvar.c: Updated. * src/truetype/ttobjs.c: Updated. * src/type1/t1load.c: Updated.
b731c827	2012-11-30T15:22:03	Minor.
7e8e1761	2012-11-30T13:45:47	[configure] Preserve customized `ftoption.h'. Problem reported by Del Merritt <del@alum.mit.edu>. * builds/unix/configure.raw <cpp computation of bit length>: Don't remove existing FreeType configuration files.
337fcb6a	2012-11-29T21:10:10	[type1] Fix Savannah bug #37831. The bug report also contains a patch. * src/type1/t1parse.c (T1_Get_Private_Dict) <found>: Really fix change from 2012-09-17.
6a126e14	2012-11-28T23:32:02	[truetype] Fix formatting and typo.
79180ad0	2012-11-27T21:36:20	[cid, type1, type42] Clean up units_per_EM calculations. * src/cid/cidload.c (cid_parse_font_matrix): Updated. * src/type1/t1load.c (t1_parse_font_matrix): Updated. * src/type42/t42parse.c (t42_parse_font_matrix): Updated.
72e976d4	2012-11-27T21:18:34	[ftstroke] Minor improvement. * src/base/ftstroke.c: Replace nested FT_DivFix and FT_MulFix with FT_MulDiv.
fa22ec1c	2012-11-17T11:45:24	* src/base/fttrigon.c (ft_trig_downscale): Make 64bit version work.
0690d3d7	2012-11-15T20:50:59	[base] Fix integer overflows in dd5718c7d67a. * src/base/ftoutln.c (FT_Outline_EmboldenXY): Use FT_MulDiv.
3a553400	2012-11-15T16:37:05	[autofit] Trace stem widths. * src/autofit/aflatin.c (af_latin_metrics_init_widths): Add some FT_TRACE calls.
55127272	2012-11-13T09:22:11	[cff] Add support for OpenType Collections (OTC). * src/cff/cffload.c (cff_font_load): Separate subfont and face index handling to load both pure CFFs with multiple subfonts and OTCs (with multiple faces where each face holds exactly one subfont). * src/cff/cffobjs.c (cff_face_init): Updated.
1a37e417	2012-11-12T11:01:07	[autofit] Minor improvement. * src/autofit/aflatin.c (af_latin_hints_compute_blue_edges): Fix loop.
f966da82	2012-11-10T12:42:18	[autofit] Improve tracing. * src/autofit/aflatin.c (af_latin_hint_edges) [FT_DEBUG_LEVEL_TRACE]: Count number of actions and emit something if there weren't any.
dd5718c7	2012-11-04T00:57:57	[base] Fortify emboldening code against egregious distortions. * src/base/ftoutln.c (FT_Outline_EmboldenXY): Threshold emboldening strength when it leads to segment collapse.
48ce226a	2012-11-03T22:27:27	[base] Clean up emboldening code and improve comments there. * src/base/ftoutln.c (FT_Outline_EmboldenXY): Replace sequential calls to FT_MulFix and FT_DivFix with FT_MulDiv. Mention that bisectors are used to figure out the shift direction.
553bb3c3	2012-10-24T14:22:14	[autofit] Add standard character to `AF_ScriptClassRec' structure. * src/autofit/aftypes.h (AF_ScriptClassRec): Add `standard_char' member. (AF_DEFINE_SCRIPT_CLASS): Updated. * src/autofit/aflatin.c (af_latin_metrics_init_widths): Use it. (af_latin_metrics_init, af_latin_script_class): Updated. * src/autofit/aflatin.c (af_latin2_metrics_init_widths): Use it. (af_latin2_metrics_init, af_latin2_script_class): Updated. * src/autofit/afcjk.c (af_cjk_metrics_init_widths): Use it. (af_cjk_metrics_init, af_cjk_script_class): Updated. * src/autofit/afindic.c(af_indic_metrics_init, af_indic_script_class): Updated. * src/autofit/afcjk.h, src/autofit/aflatin.h: Updated. * src/autofit/afdummy.c: Updated.
118c6025	2012-10-24T12:26:20	[autofit] Only use Unicode CMap. * src/autofit/aflatin.c (af_latin_metrics_init): Implement it, to be in sync with `af_face_globals_compute_script_coverage)'.
8e82a961	2012-10-21T11:02:50	[psaux] Improve parsing of invalid numbers. * src/psaux/psconv.c (PS_Conv_Strtol): Always parse complete number, even in case of overflow. (PS_Conv_ToInt): Only increase cursor if parsing was successful. (PS_Conv_ToFixed): Ditto. Trace underflow and data error.
fdcbaf19	2012-10-21T10:40:12	[smooth] Improve tracing. * src/smooth/ftgrays.c (gray_sweep): Trace last sweep line of current band also.
24e897db	2012-10-20T22:23:01	[truetype] Cheaper way to threshold angles between vectors. * src/truetype/ttinterp.c (Ins_ISECT): Thresholding tangent is a lot cheaper than thresholding sine.
ad4eecca	2012-10-20T21:27:17	[cff] Improve parsing of invalid real numbers. * src/cff/cffparse.c (cff_parse_real): Always parse complete number, even in case of overflow or underflow. Also trace one more underflow.
1e168834	2012-10-20T11:42:22	[sfnt] Load pure CFF fonts wrapped in SFNT container. Such fonts only have a `cmap' and a `CFF' table. * src/sfnt/ttload.c (tt_face_load_font_dir): Don't call `check_table_dir' if font signature is `OTTO'.
eaf0afb4	2012-10-20T11:27:25	[psaux] Fix some value overflows and improve tracing. * src/psaux/psconv.c: Include FT_INTERNAL_DEBUG_H. (FT_COMPONENT): Define. (PS_Conv_Strtol): Return FT_Long. Handle bad data and overflow. Emit some tracing messages in case of error. (PS_Conv_ToInt): Return FT_Long. (PS_Conv_ToFixed): Updated. * src/psaux/psconv.h: Updated. * include/freetype/internal/fttrace.h: Add `psconv'.
dda1e93d	2012-10-20T08:34:57	[autofit] Fix `make multi CC=c++'. * src/autofit/aflatin.c, src/autofit/aflatin2.c: Include `afglobal.h'. * src/autofit/afloader.c: Fix order of header files. * src/autofit/afmodule.c: Include `afglobal.h' and `aferrors.h'.
4404ec4e	2012-10-19T09:06:53	[cff] Fix more value errors and improve tracing. * src/cff/cffparse.c (cff_parse_integer): Emit tracing message in case of error. (cff_parse_real): Handle and trace overflow, underflow, and bad data consistently. (do_fixed): New helper function, handling and tracing overflow. (cff_parse_fixed, cff_parse_fixed_scaled): Use `do_fixed'.
0708b23e	2012-10-17T21:38:19	[psaux] Fix some value overflows. * src/psaux/psconv.c (PS_Conv_ToFixed): Implement it.
76accc18	2012-10-17T19:55:20	[cff] Fix value overflow. * src/cff/cffparse.c (cff_parse_fixed_scaled): Implement it.
2df16761	2012-10-17T11:34:22	[truetype] Fix Savannah bug #37572. * src/truetype/ttinterp.c (Ins_ISECT): Use angle between vectors to avoid grazing intersections. The previous threshold was too coarse, incorrectly rejecting short but valid vectors.
be81ec22	2012-09-30T08:42:30	Remove useless `rm' detection. `rm -f' is directly used in the `configure' script created by autoconf, thus no availability test is necessary. * builds/unix/configure.raw (RMF): Remove test. * builds/unix/unix-def.in (DELETE): Updated.
bf745003	2012-09-29T22:40:40	[autofit] Minor optimization. * src/autofit/afglobals.c (af_face_globals_compute_script_coverage): Add loop condition.
156ba42e	2012-09-29T10:08:01	[autofit] Fix thinko. * src/autofit/aftypes.h (AF_SCRIPT): s/AF_SCRIPT_NONE/AF_SCRIPT_DUMMY/. We already use `AF_SCRIPT_NONE' as a bit mask. * src/autofit/afdummy.c: Updated.
3683fb55	2012-09-18T23:31:05	[autofit] Implement `increase-x-height' property. * include/freetype/ftautoh.h (FT_Prop_IncreaseXHeight): New structure. * include/autofit/afmodule.c (af_property_get_face_globals): New function, re-using code from `af_property_get'. (af_property_set, af_property_get): Handle `increase-x-height'. Updated.
d180ac70	2012-09-18T23:26:37	[autofit] Implement Infinality's `increase glyph heights'. This is an improved version of a similar fix contained in the so-called `Infinality patch', taken from http://www.infinality.net/fedora/linux/zips/freetype-infinality-2.4.10-20120616_01-x86_64.tar.bz2 which addresses various enhancements of the auto-hinter. Without properties to control a module's metadata it wasn't possible to adapt the patches because everything was originally controlled by environment variables which I consider not suitable in general. A patch to control `increase_x_height' follows. * src/autofit/afglobal.h (AF_PROP_INCREASE_X_HEIGHT_MIN, AF_PROP_INCREASE_X_HEIGHT_MAX): New macros. (AF_FaceGlobalsRec): Add `increase_x_height' member. * src/autofit/afglobal.c (af_face_globals_new): Initialize it. * src/autofit/aflatin.c (af_latin_metrics_scale_dim), * src/autofit/aflatin2.c (af_latin2_metrics_scale_dim): Implement handling of `increase_x_height'.

d6bc524b

2013-03-11T09:50:53

Always use module related error codes. * src/cff/cffobjs.c (cff_face_init), src/type1/t1objs.c (T1_Face_Init), src/type42/t42objs.c (T42_Face_Init): Use `FT_ERROR_BASE'. * src/type1/t1load.c (parse_encoding): Use T1_Err_Unknown_File_Format.

737bbb04

2013-03-08T21:25:45

Minor.

2d882540

2013-03-08T21:23:45

[cff] Set `linear{Hori,Vert}Advance' for embedded bitmaps also. * src/cff/cffgload.c (cff_slot_load): Implement it.

2ba18ba1

2013-02-22T23:58:57

[base] Fix commit ab02d9e8. * src/base/ftbbox.c (BBox_Cubic_Check): Change scaling to msb of 22.

f9434dba

2013-02-19T21:27:18

[base] New bisecting BBox_Cubic_Check (disabled). * src/base/ftbbox.c (BBox_Cubic_Check): New bisecting algorithm for extremum search built around simple condition that defines which half contains the extremum.

0e536676

2013-02-18T20:41:56

[tools] Update BBox testing tool. * src/tools/test_bbox.c: Add another cubic outline with exact BBox. (REPEAT): Increase the number of benchmarking cycles. (profile_outline): Tweak output formatting.

bcca86af

2013-02-08T12:49:41

Fix Savannah bug #38235. * builds/unix/configure.raw: Don't generate `freetype-config' and `freetype.pc'. * builds/unix/unix-def.in (FT2_EXTRA_LIBS, LIBBZ2, LIBZ, build_libtool_libs, ft_version): New variables to be substituted. (freetype-config, freetype.pc): New rules to generate those files. * builds/unix/freetype-config.in: Remove code for handling `rpath'. The use of $rpath has been accidentally removed in a patch from 2009-12-22, and apparently noone has missed it since. Use `%' instead of `@' as a variable substitution marker. Use quotes. * builds/unix/freetype.in: Use `%' instead of `@' as a variable substitution marker. Use quotes.

a2c7eb18

2013-02-07T19:49:12

* src/truetype/ttobjs.c (tt_size_run_prep): Reset more GS variables. BTW, Greg agrees that the OpenType specification is missing the list of GS variables which will always be reset to the default values after the `prep' table has been executed.

bfcc375b

2013-02-06T08:47:29

* src/truetype/ttobjs.c (tt_size_run_prep): Reset reference points. Up to now, we simply took a snapshot of the Graphics State after the `prep' table has been executed, and right before a glyph's bytecode was run it got reloaded. However, as Greg Hitchcock has told us in private communication, reference points get reset to zero in the MS rasterizer and we follow in due course. While reasonable, this is undocumented behaviour. Most notably, this fixes the rendering of Arial's `x' glyph in subpixel hinting mode.

00dfa330

2013-02-05T19:23:16

[truetype] A better fix for Savannah bug #38211. * src/truetype/ttinterp.c (Ins_IP): Implement identical behaviour to MS rasterizer if rp1 == rp2 (confirmed by Greg Hitchcock).

0eb6316f

2013-02-01T20:24:00

[pcf] Streamline parsing of PCF encoding table. * src/pcf/pcfread.c (pcf_get_encodings): Use simpler double for-loop. Reallocate array instead of using temporary storage.

3b1f206b

2013-02-01T23:45:04

Fix Savannah bug #38227. * builds/unix/freetype-config.in: Set LC_ALL.

30f1e6ca

2013-02-01T14:50:08

Fix Savannah bug #38221. This complements commit 83c0ebab. * src/base/ftcalc.c (FT_MulDiv_No_Round): Don't enclose with `TT_USE_BYTECODE_INTERPRETER'.

40633205

2013-02-01T12:55:44

[truetype] Fix Savannah bug #38211. * src/truetype/ttinterp.c (Ins_IP): Make FreeType behave identical to other interpreters if rp1 == rp2 (which is invalid).

6b9034f0

2013-01-28T13:56:23

Formatting, comment improvements.

ab02d9e8

2013-01-28T06:35:19

[base] Small optimization of BBox calculation. * src/base/ftbbox.c (BBox_Cubic_Check): Use FT_MSB function in scaling algorithm.

c574d72c

2013-01-26T17:40:44

[truetype] Minor formatting fix.

97ba5109

2013-01-26T17:05:40

[truetype] Fix rasterizer_version logic in sph.

a5fe3595

2013-01-26T12:29:52

[truetype] Align more to ClearType whitepaper for sph.

610ee58e

2013-01-25T23:33:00

[base] Fix broken emboldening at small sizes. * src/base/ftoutln.c (FT_Outline_EmboldenXY): Do not attempt to normalize zero-length vectors.

f41ee054

2013-01-25T16:41:24

Fix Savannah bug #38167. This fixes commit 83c0ebab from 2012-06-27. * src/truetype/ttinterp.h: s/TT_CONFIG_OPTION_BYTECODE_INTERPRETER/TT_USE_BYTECODE_INTERPRETER/.

ba931be2

2013-01-25T00:57:09

[sfnt] Fix broken pointer overflow checks. Many compilers such as gcc and clang optimize away pointer overflow checks `p + n < p', because pointer overflow is undefined behavior. Use a safe form `n > p_limit - p' instead. Also avoid possible integer overflow issues, for example, using `num_glyphs > ( p_limit - p ) / 2' rather than `num_glyphs * 2' given a large `num_glyphs'. * src/sfnt/ttsbit0.c (tt_sbit_decoder_load_image): Implement it.

817caa9f

2013-01-25T00:40:56

Fix `make multi' * src/base/ftoutln.c, src/base/fttrigon.c: Include FT_INTERNAL_CALC_H.

72447195

2013-01-25T00:36:35

[truetype] Fix C++ compilation. * src/truetype/ttsubpix.h: Updated. (SPH_X_SCALING_RULES_SIZE): Moved and renamed to... * src/truetype/ttsubpix.c (X_SCALING_RULES_SIZE): This. (sph_X_SCALING_Rules): Removed. (scale_test_tweak): Make function static. (sph_test_tweak_x_scaling): New function. * src/truetype/ttgload.c (TT_Process_Simple_Glyph): Updated.

e9f330ad

2013-01-24T09:12:56

[base] Make `FT_Hypot' really internal. * include/freetype/fttrigon.h (FT_Hypot): Move to... * include/freetype/internal/ftcalc.h: This file. * src/base/fttrigon.c (FT_Hypot): Move to... * src/base/ftcalc.c: This file. Include FT_TRIGONOMETRY_H. * src/truetype/ttgload.c: Don't include FT_TRIGONOMETRY_H.

87dc86d6

2013-01-24T08:39:43

[truetype] Revert change from 2013-01-22. FreeType's `height' value is the baseline-to-baseline distance... * src/truetype/ttobjs.c (tt_size_reset): Undo.

b6de8e66

2013-01-23T23:31:41

[base, truetype] New internal FT_Hypot function. * include/freetype/fttrigon.h (FT_Hypot): Declare it. * src/base/fttrigon.c (FT_Hypot): Define it. * src/truetype/ttgload.c (TT_Process_Composite_Component): Use it instead of explicit expressions. * src/truetype/ttinterp.c (Current_Ratio, Normalize): Use it instead of TT_VecLen. (TT_VecLen): Removed.

da11e5e7

2013-01-23T20:11:40

[base] Fix integer overflow. * src/base/ftoutln.c (FT_Outline_EmboldenXY): Normalize incoming and outgoing vectors and use fixed point arithmetic.

e1a2ac19

2013-01-23T19:51:28

[base] Fix integer overflow. * src/base/ftoutln.c (FT_Outline_Get_Orientation): Scale the coordinates down to avoid overflow.

869fb8c4

2013-01-23T19:43:28

[base] Split out MSB function. * src/base/fttrigon.c (ft_trig_prenorm): Borrow from here. * include/freetype/internal/ftcalc.h (FT_MSB): Declare here. * src/base/ftcalc.c (FT_MSB): Define here.

e0469372

2013-01-22T11:07:07

[truetype] Fix font height. * src/truetype/ttobjs.c (tt_size_reset): The Windows rendering engine uses rounded values of the ascender and descender to compute the TrueType font height.

cd3f871e

2013-01-16T19:56:08

[sfnt] Fix optimized sbit loader. It was not taking bit_depth into consideration when blitting! * src/sfnt/ttsbit0.c (tt_sbit_decoder_load_byte_aligned, * tt_sbit_decoder_load_bit_aligned): Handle bit depth.

3a406127

2013-01-16T19:48:31

[truetype] Improve sub-pixel code. This patches fixes many issues with the ttsubpix implementation. 1. Data tables are defined, instead of declared, in the header, and thus copied into each source file that includes it. 2. These tables were defined as global, mutable, visible variables, and thus costing private RAM to every process that loads the library (> 50 KB / process, this is huge!). Additionally, this also made the library export the symbols completely needlessly. 3. Missing `sph_' and `SPH_' prefixes to some of the definitions. Note that this doesn't try to fix the incredibly inefficient storage format for the data tables used by the code. This one will require another pass in the future. * src/truetype/ttinterp.h (MAX_NAME_SIZE, MAX_CLASS_MEMBERS): Renamed to... (SPH_MAX_NAME_SIZE, SPH_MAX_CLASS_MEMBERS): This. Update all users. (SPH_TweakRule, SPH_ScaleRule): Decorate with `const' where appropriate. (Font_Class): Rename to... (SPH_Font_Class): This. Decorate with `const' where appropriate. * src/truetype/ttsubpix.h (scale_test_tweak, sph_test_tweak): Decorate arguments with `const' where appropriate. Move font tweaking tables to... * src/truetype/ttsubpic.c: This file and decorate them with `static' and `const' where appropriate. (X_SCALING_Rules, X_SCALING_RULES_SIZE): Renamed to... (spu_X_SCALING_Rules, SPH_X_SCALING_RULES_SIZE): This. Update all users.

0e0fdc5d

2013-01-12T23:05:55

[truetype] Improve accuracy of normalization of short vectors. Unit vector components are stored as 2.14 fixed-point numbers. In order to calculate all 14 bits accurately, a short vector to be normalized has to be upscaled to at least 14 bits before its length is calculated. This has been safe since accurate CORDIC algorithms were adopted. * src/truetype/ttinterp.c (Normalize): Scale short vectors by 0x4000.

081aba39

2013-01-12T22:36:37

[truetype] Kill very old vector normalization hacks. Back in the days, vector length calculations were not very accurate and the vector normalization function, Normalize, had to meticulously correct the errors for long vectors [commit b7ef2b096867]. It was no longer necessary after accurate CORDIC algorithms were adopted, but the code remained. It is time to kill it. * src/truetype/ttinterp.c (Normalize): Remove error compensation. (TT_VecLen): Remove any mention of old less accurate implementation.

e4ecce3b

2013-01-11T09:02:22

Disable FT_CONFIG_OPTION_OLD_INTERNALS. After the next release we are going to remove the code completely. * devel/ftoption.h, include/freetype/config/ftoption.h (FT_CONFIG_OPTION_OLD_INTERNALS): Comment out. * docs/CHANGES: Document it.

53c0cb59

2013-01-11T08:29:22

Typos, whitespace.

ad9d5c97

2013-01-10T22:29:07

[base] Update the overflow protection bit. The recent optimizations of CORDIC iterations drastically reduce the expansion factor. The vector components with MSB of 29 are now safe from overflow. * src/base/fttrigon.c (FT_TRIG_SAFE_MSB): New macro. (ft_trig_prenorm): Use it and remove dead code.

6b83a367

2013-01-09T00:25:32

[base, pshinter] Use FT_ABS, FT_MIN, and FT_MAX for readability. * src/base/ftbbox.c: Updated. * src/base/ftobjs.c: Updated. * src/base/fttrigon.c: Updated. * src/pshinter/pshalgo.c: Updated. * src/pshinter/pshrec.c: Updated.

09dbb059

2013-01-08T23:29:44

[base] Clean up trigonometric core. * src/base/fttrigon.c: Document the algorithm in a large comment. (FT_TRIG_COSCALE): Remove macro. (FT_Tan: Use `FT_TRIG_SCALE' instead. (FT_Cos, FT_Vector_Unit): Ditto and round the return values.

5dd9657f

2013-01-02T23:45:14

[base] Use rounding in CORDIC iterations. * src/base/fttrigon.c (ft_trig_pseudo_rotate, ft_trig_pseudo_polarize): Improve accuracy by rounding.

b4ac30b0

2013-01-02T22:21:37

[base] Reduce trigonometric algorithms. After we get within 45 degrees by means of true 90-degree rotations, we can remove initial 45-degree CORDIC iteration and start from atan(1/2) pseudorotation, reducing expansion factor thereby. * src/base/fttrigon.c (FT_TRIG_SCALE, FT_TRIG_COSCALE): Update macros. (ft_trig_pseudo_rotate, ft_trig_pseudo_polarize): Update. * src/tools/cordic.py: Bring up to date with trigonometric core. * docs/CHANGES: Old typo.

50e634ab

2013-01-02T20:31:56

* src/pshinter/pshalgo.h: Remove unused code.

7d6dc907

2012-12-27T01:08:24

* src/truetype/ttgload.c (tt_loader_init): Add more tracing.

2ef0a198

2012-12-23T21:14:37

[type1] Fix handling of /FontBBox in MM fonts. Problem reported by Del Merritt <del@alum.mit.edu> If we have /FontBBox { { 11 12 13 14 15 16 17 18 } { 21 22 23 24 25 26 27 28 } { 31 32 33 34 35 36 37 38 } { 41 42 43 44 45 46 47 48 } } in the /Blend dictionary, then the first BBox is { 11 21 31 41 }, the second { 12 22 32 42 }, etc. * include/freetype/internal/psaux.h (T1_FieldType): Add `T1_FIELD_TYPE_MM_BBOX' (for temporary use). * src/psaux/psobjs.c (ps_parser_load_field) <T1_FIELD_TYPE_MM_BBOX>: Implement it.

cbf3fb39

2012-12-21T14:20:25

* src/tools/cordic.py: Bring up to date with trigonometric core.

3ffb822e

2012-12-21T16:45:27

Check parameters of `FT_Outline_New'. Problem reported by Robin Watts <robin.watts@artifex.com>. * src/base/ftoutln.c (FT_Outline_New_Internal): Ensure that `numContours' and `numPoints' fit into FT_Outline's `n_points' and `n_contours', respectively.

c6a66b49

2012-12-20T08:31:56

* Version 2.4.11 released. ========================== Tag sources with `VER-2-4-11'. * docs/CHANGES, docs/release: Updated. * docs/VERSION.DLL: Update documentation and bump version number to 2.4.11. * README, Jamfile (RefDoc), builds/win32/vc2005/freetype.vcproj, builds/win32/vc2005/index.html, builds/win32/vc2008/freetype.vcproj, builds/win32/vc2008/index.html, builds/win32/vc2010/freetype.vcxproj, builds/win32/vc2010/index.html, builds/win32/visualc/freetype.dsp, builds/win32/visualc/freetype.vcproj, builds/win32/visualc/index.html, builds/win32/visualce/freetype.dsp, builds/win32/visualce/freetype.vcproj, builds/win32/visualce/index.html, builds/wince/vc2005-ce/freetype.vcproj, builds/wince/vc2005-ce/index.html, builds/wince/vc2008-ce/freetype.vcproj, builds/wince/vc2008-ce/index.html: s/2.4.10/2.4.11/, s/2410/2411/. * include/freetype/freetype.h (FREETYPE_PATCH): Set to 10. * builds/unix/configure.raw (version_info): Set to 16:0:10. * builds/toplevel.mk (dist): Don't include `.mailmap'.

d7383b7b

2012-12-20T01:03:22

[base] Improve trigonometric core. FreeType used to rely on a 24-step iteration CORDIC algorithm to calculate trigonometric functions and rotate vectors. It turns out that once the vector is in the right half-plane, the initial rotation by 63 degrees is not necessary. The algorithm is perfectly capable to converge to any angle starting from the second 45 degree rotation. This patch removes the first rotation and makes it a 23-step CORDIC algorithm. * src/base/fttrigon.c (FT_TRIG_SCALE, FT_TRIG_COSCALE): Update macro values. (ft_trig_pseudo_rotate, ft_trig_pseudo_polarize): Remove initial rotation.

768590a9

2012-12-20T06:08:23

* src/base/ftobjs.c (ft_property_do): Fix compiler warning.

32fc416f

2012-12-19T23:05:32

* src/base/ftrfork.c (FT_Raccess_Guess): Switch to FT_Int counters.

06174dbb

2012-12-19T22:46:27

[base] Clean up trigonometric core. * src/base/fttrrigon.c (ft_trig_pseudo_polarize): Align algorithm with `ft_trig_pseudo_rotate'.

1749ae20

2012-12-18T07:23:09

[truetype] Minor performance enhancement.

94b79e74

2012-12-17T19:17:30

[truetype] Remove unusued code and variables.

a9f6f85e

2012-12-17T09:08:09

Various compiler warning fixes. * include/freetype/internal/ftserv.h (FT_SERVICE_UNAVAILABLE): Use `logical not' operator instead of negation. The idea is that `~' returns exactly the data type enforced by the cast to a pointer (be it 32bit or 64bit or whatever), while a negative integer has not this flexibility. * src/cache/ftccmap.c (FTC_CMAP_UNKNOWN): Ditto. * src/truetype/ttgxvar.c (ALL_POINTS, TT_Get_MM_Var): Ditto. * src/type/t1load.c (T1_Get_MM_Var): Ditto. (parse_blend_axis_types): Use cast. * src/bdf/bdflib.c (_bdf_readstream): Use cast.

71f242c2

2012-12-16T19:52:01

[truetype ] Remove unusued code. Add minor fixes.

309b8b31

2012-12-16T19:08:36

[sfnt] Fix Savannah bug #37936. * src/sfnt/ttload.c (tt_face_load_gasp): Avoid memory leak.

8ac5c5c8

2012-12-15T23:33:55

[base] Fix 11-year old bug. Since the initial commit (ebe85f59) the value of FT_TRIG_SCALE has always been slightly less than the correct value, which has been given in the comment as a hexadecimal. As a result, vector lengths were underestimated and rotated vectors were shortened.

7f2e4f4f

2012-12-15T09:39:41

[bdf] Fix Savannah bug #37907. * src/bdf/bdflib.c (_bdf_parse_glyphs) <ENCODING>: Normalize negative second parameter of `ENCODING' field also.

07bdb6e2

2012-12-15T02:02:23

[bdf] Fix Savannah bug #37906. * src/bdf/bdflib.c (_bdf_parse_glyphs): Use correct array size for checking `glyph_enc'.

9b6b5754

2012-12-15T01:34:41

[bdf] Fix Savannah bug #37905. * src/bdf/bdflib.c (_bdf_parse_start): Reset `props_size' to zero in case of allocation error; this value gets used in a loop in `bdf_free_font'.

65d65721

2012-12-10T06:59:29

[truetype] Scale F_dot_P down. The dot product between freeVector and projVector or cosine of the angle between these FT_F2Dot14 unit vectors used to be scaled up by 4 and routinely occupied 32 bits in an FT_Long field F_dot_P. This patch scales the value down by 2^14 instead, which simplifies its use throughout the bytecode interpreter. This does not lead to the loss of precision because the lower bits are unreliable anyway. Consider two unit vectors (1,0) and (.6,.8) for which the true value of F_dot_P is .6 * 0x40000000 = 0x26666666. These vectors are stored as (0x4000,0) and (0x2666,0x3333) after rounding and F_dot_P is assigned 0x26660000. The lower bits were already lost while rounding the unit vector components. Besides code simplification, this change can lead to better performance when FT_MulDiv with the scaled-down F_dot_P is less likely to use the costly 64-bit path. We are not changing the type of F_dot_P to FT_F2Dot14 at this point. * src/truetype/ttinterp.c (Compute_Funcs): Scale F_dot_P down by 14 bits and modify its use accordingly. (Direct_Move, Direct_Move_Orig, Compute_Point_Displacement): Modify the use of F_dot_P field. * src/truetype/ttobjs.c (tt_size_run_fpgm): Change arbitrary assignment of F_dot_P to its theoretical maximum in case we decide to scale back its type later.

06d6916c

2012-12-09T00:07:51

[type1] Another fix for 2012-09-17 commit. * src/type1/t1parse.c (T1_Get_Private_Dict) <found>: Correctly set `limit' value.

cece4d3b

2012-12-06T20:23:38

[truetype] Tweak the previous commit. * src/truetype/ttinterp.c (Current_Ratio): Put unit vector components as the second TT_MulFix14 arguments. This is required on 16-bit systems.

5ad05f97

2012-12-06T00:27:20

[truetype] Microoptimizations in bytecode interpreter. * src/truetype/ttinterp.c (TT_DivFix14): New macro. (Normalize): Use it here. (Current_Ratio): Use TT_MulFix14 instead of FT_MulDiv. (Ins_SHPIX): Cancel out two TT_MulFix14 calls.

b50088bd

2012-12-05T23:05:47

[truetype] Cosmetic improvement in bytecode interpreter. * src/truetype/ttinterp.c: Use explicit calls to FT_MulDiv, FT_MulFix, and FT_DivFix instead of macros.

54d43a39

2012-12-05T11:14:41

[pshinter] Clamp BlueScale value. This is Savannah bug #37856. * src/pshinter/pshglob.c (psh_calc_max_height): New function. (psh_globals_new): Use it to limit BlueScale value to `1 / max_of_blue_zone_heights'.

4ae9cbb0

2012-12-01T23:36:02

[truetype, type1] Revise the use of FT_MulDiv. * src/truetype/ttgxvar.c: Updated. * src/truetype/ttobjs.c: Updated. * src/type1/t1load.c: Updated.

b731c827

2012-11-30T15:22:03

Minor.

7e8e1761

2012-11-30T13:45:47

[configure] Preserve customized `ftoption.h'. Problem reported by Del Merritt <del@alum.mit.edu>. * builds/unix/configure.raw <cpp computation of bit length>: Don't remove existing FreeType configuration files.

337fcb6a

2012-11-29T21:10:10

[type1] Fix Savannah bug #37831. The bug report also contains a patch. * src/type1/t1parse.c (T1_Get_Private_Dict) <found>: Really fix change from 2012-09-17.

6a126e14

2012-11-28T23:32:02

[truetype] Fix formatting and typo.

79180ad0

2012-11-27T21:36:20

[cid, type1, type42] Clean up units_per_EM calculations. * src/cid/cidload.c (cid_parse_font_matrix): Updated. * src/type1/t1load.c (t1_parse_font_matrix): Updated. * src/type42/t42parse.c (t42_parse_font_matrix): Updated.

72e976d4

2012-11-27T21:18:34

[ftstroke] Minor improvement. * src/base/ftstroke.c: Replace nested FT_DivFix and FT_MulFix with FT_MulDiv.

fa22ec1c

2012-11-17T11:45:24

* src/base/fttrigon.c (ft_trig_downscale): Make 64bit version work.

0690d3d7

2012-11-15T20:50:59

[base] Fix integer overflows in dd5718c7d67a. * src/base/ftoutln.c (FT_Outline_EmboldenXY): Use FT_MulDiv.

3a553400

2012-11-15T16:37:05

[autofit] Trace stem widths. * src/autofit/aflatin.c (af_latin_metrics_init_widths): Add some FT_TRACE calls.

55127272

2012-11-13T09:22:11

[cff] Add support for OpenType Collections (OTC). * src/cff/cffload.c (cff_font_load): Separate subfont and face index handling to load both pure CFFs with multiple subfonts and OTCs (with multiple faces where each face holds exactly one subfont). * src/cff/cffobjs.c (cff_face_init): Updated.

1a37e417

2012-11-12T11:01:07

[autofit] Minor improvement. * src/autofit/aflatin.c (af_latin_hints_compute_blue_edges): Fix loop.

f966da82

2012-11-10T12:42:18

[autofit] Improve tracing. * src/autofit/aflatin.c (af_latin_hint_edges) [FT_DEBUG_LEVEL_TRACE]: Count number of actions and emit something if there weren't any.

dd5718c7

2012-11-04T00:57:57

[base] Fortify emboldening code against egregious distortions. * src/base/ftoutln.c (FT_Outline_EmboldenXY): Threshold emboldening strength when it leads to segment collapse.

48ce226a

2012-11-03T22:27:27

[base] Clean up emboldening code and improve comments there. * src/base/ftoutln.c (FT_Outline_EmboldenXY): Replace sequential calls to FT_MulFix and FT_DivFix with FT_MulDiv. Mention that bisectors are used to figure out the shift direction.

553bb3c3

2012-10-24T14:22:14

[autofit] Add standard character to `AF_ScriptClassRec' structure. * src/autofit/aftypes.h (AF_ScriptClassRec): Add `standard_char' member. (AF_DEFINE_SCRIPT_CLASS): Updated. * src/autofit/aflatin.c (af_latin_metrics_init_widths): Use it. (af_latin_metrics_init, af_latin_script_class): Updated. * src/autofit/aflatin.c (af_latin2_metrics_init_widths): Use it. (af_latin2_metrics_init, af_latin2_script_class): Updated. * src/autofit/afcjk.c (af_cjk_metrics_init_widths): Use it. (af_cjk_metrics_init, af_cjk_script_class): Updated. * src/autofit/afindic.c(af_indic_metrics_init, af_indic_script_class): Updated. * src/autofit/afcjk.h, src/autofit/aflatin.h: Updated. * src/autofit/afdummy.c: Updated.

118c6025

2012-10-24T12:26:20

[autofit] Only use Unicode CMap. * src/autofit/aflatin.c (af_latin_metrics_init): Implement it, to be in sync with `af_face_globals_compute_script_coverage)'.

8e82a961

2012-10-21T11:02:50

[psaux] Improve parsing of invalid numbers. * src/psaux/psconv.c (PS_Conv_Strtol): Always parse complete number, even in case of overflow. (PS_Conv_ToInt): Only increase cursor if parsing was successful. (PS_Conv_ToFixed): Ditto. Trace underflow and data error.

fdcbaf19

2012-10-21T10:40:12

[smooth] Improve tracing. * src/smooth/ftgrays.c (gray_sweep): Trace last sweep line of current band also.

24e897db

2012-10-20T22:23:01

[truetype] Cheaper way to threshold angles between vectors. * src/truetype/ttinterp.c (Ins_ISECT): Thresholding tangent is a lot cheaper than thresholding sine.

ad4eecca

2012-10-20T21:27:17

[cff] Improve parsing of invalid real numbers. * src/cff/cffparse.c (cff_parse_real): Always parse complete number, even in case of overflow or underflow. Also trace one more underflow.

1e168834

2012-10-20T11:42:22

[sfnt] Load pure CFF fonts wrapped in SFNT container. Such fonts only have a `cmap' and a `CFF' table. * src/sfnt/ttload.c (tt_face_load_font_dir): Don't call `check_table_dir' if font signature is `OTTO'.

eaf0afb4

2012-10-20T11:27:25

[psaux] Fix some value overflows and improve tracing. * src/psaux/psconv.c: Include FT_INTERNAL_DEBUG_H. (FT_COMPONENT): Define. (PS_Conv_Strtol): Return FT_Long. Handle bad data and overflow. Emit some tracing messages in case of error. (PS_Conv_ToInt): Return FT_Long. (PS_Conv_ToFixed): Updated. * src/psaux/psconv.h: Updated. * include/freetype/internal/fttrace.h: Add `psconv'.

dda1e93d

2012-10-20T08:34:57

[autofit] Fix `make multi CC=c++'. * src/autofit/aflatin.c, src/autofit/aflatin2.c: Include `afglobal.h'. * src/autofit/afloader.c: Fix order of header files. * src/autofit/afmodule.c: Include `afglobal.h' and `aferrors.h'.

4404ec4e

2012-10-19T09:06:53

[cff] Fix more value errors and improve tracing. * src/cff/cffparse.c (cff_parse_integer): Emit tracing message in case of error. (cff_parse_real): Handle and trace overflow, underflow, and bad data consistently. (do_fixed): New helper function, handling and tracing overflow. (cff_parse_fixed, cff_parse_fixed_scaled): Use `do_fixed'.

0708b23e

2012-10-17T21:38:19

[psaux] Fix some value overflows. * src/psaux/psconv.c (PS_Conv_ToFixed): Implement it.

76accc18

2012-10-17T19:55:20

[cff] Fix value overflow. * src/cff/cffparse.c (cff_parse_fixed_scaled): Implement it.

2df16761

2012-10-17T11:34:22

[truetype] Fix Savannah bug #37572. * src/truetype/ttinterp.c (Ins_ISECT): Use angle between vectors to avoid grazing intersections. The previous threshold was too coarse, incorrectly rejecting short but valid vectors.

be81ec22

2012-09-30T08:42:30

Remove useless `rm' detection. `rm -f' is directly used in the `configure' script created by autoconf, thus no availability test is necessary. * builds/unix/configure.raw (RMF): Remove test. * builds/unix/unix-def.in (DELETE): Updated.

bf745003

2012-09-29T22:40:40

[autofit] Minor optimization. * src/autofit/afglobals.c (af_face_globals_compute_script_coverage): Add loop condition.

156ba42e

2012-09-29T10:08:01

[autofit] Fix thinko. * src/autofit/aftypes.h (AF_SCRIPT): s/AF_SCRIPT_NONE/AF_SCRIPT_DUMMY/. We already use `AF_SCRIPT_NONE' as a bit mask. * src/autofit/afdummy.c: Updated.

3683fb55

2012-09-18T23:31:05

[autofit] Implement `increase-x-height' property. * include/freetype/ftautoh.h (FT_Prop_IncreaseXHeight): New structure. * include/autofit/afmodule.c (af_property_get_face_globals): New function, re-using code from `af_property_get'. (af_property_set, af_property_get): Handle `increase-x-height'. Updated.

d180ac70

2012-09-18T23:26:37

[autofit] Implement Infinality's `increase glyph heights'. This is an improved version of a similar fix contained in the so-called `Infinality patch', taken from http://www.infinality.net/fedora/linux/zips/freetype-infinality-2.4.10-20120616_01-x86_64.tar.bz2 which addresses various enhancements of the auto-hinter. Without properties to control a module's metadata it wasn't possible to adapt the patches because everything was originally controlled by environment variables which I consider not suitable in general. A patch to control `increase_x_height' follows. * src/autofit/afglobal.h (AF_PROP_INCREASE_X_HEIGHT_MIN, AF_PROP_INCREASE_X_HEIGHT_MAX): New macros. (AF_FaceGlobalsRec): Add `increase_x_height' member. * src/autofit/afglobal.c (af_face_globals_new): Initialize it. * src/autofit/aflatin.c (af_latin_metrics_scale_dim), * src/autofit/aflatin2.c (af_latin2_metrics_scale_dim): Implement handling of `increase_x_height'.

kc3-lang/freetype/ChangeLog

ChangeLog

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