12016-07-12  Werner Lemberg  <wl@gnu.org>
2
3	* Version 2.6.5 released.
4	=========================
5
6
7	Tag sources with `VER-2-6-5'.
8
9	This commit immediately follows `[mac] Fix ftexport.sym target in
10	Jamfile.' on a separate branch, which was then merged with master
11	after the release.
12
13	* include/freetype/config/ftoption.h
14	(TT_CONFIG_OPTION_SUBPIXEL_HINTING): Comment out.
15
16	* docs/VERSION.TXT: Add entry for version 2.6.5.
17
18	* README, Jamfile (RefDoc), builds/windows/vc2005/freetype.vcproj,
19	builds/windows/vc2005/index.html,
20	builds/windows/vc2008/freetype.vcproj,
21	builds/windows/vc2008/index.html,
22	builds/windows/vc2010/freetype.vcxproj,
23	builds/windows/vc2010/index.html,
24	builds/windows/visualc/freetype.dsp,
25	builds/windows/visualc/freetype.vcproj,
26	builds/windows/visualc/index.html,
27	builds/windows/visualce/freetype.dsp,
28	builds/windows/visualce/freetype.vcproj,
29	builds/windows/visualce/index.html,
30	builds/wince/vc2005-ce/freetype.vcproj,
31	builds/wince/vc2005-ce/index.html,
32	builds/wince/vc2008-ce/freetype.vcproj,
33	builds/wince/vc2008-ce/index.html: s/2.6.4/2.6.5/, s/264/265/.
34
35	* include/freetype/freetype.h (FREETYPE_PATCH): Set to 5.
36
37	* builds/unix/configure.raw (version_info): Set to 18:5:12.
38	* CMakeLists.txt (VERSION_PATCH): Set to 5.
39
40	* docs/CHANGES: Updated.
41
422016-07-11  Werner Lemberg  <wl@gnu.org>
43
44	Conditionally compile environment support.
45
46	* include/freetype/internal/ftobjs.h, src/autofit/afmodule.c,
47	src/base/ftobjs.c, src/cff/cffdrivr.c, src/truetype/ttdriver.c:
48	Decorate with `FT_CONFIG_OPTION_ENVIRONMENT_PROPERTIES' where
49	necessary.
50
512016-07-11  Werner Lemberg  <wl@gnu.org>
52
53	Handle properties in `FREETYPE_PROPERTIES' environment variable.
54
55	This commit covers the most important one.
56
57	* src/autofit/afmodule.c (af_property_set): Handle `warping',
58	`darkening-parameters', and `no-stem-darkening'.
59
60	* src/cff/cffdrivr.c (cff_property_set): Handle
61	`darkening-parameters', `hinting-engine', and `no-stem-darkening'.
62
63	* src/truetype/ttdriver.c (tt_property_set): Handle
64	`interpreter-version'.
65
662016-07-11  Werner Lemberg  <wl@gnu.org>
67
68	Replace calls to `atol' with `strtol'.
69
70	We later on need strtol's `endptr' feature.
71
72	* include/freetype/config/ftstdlib.h (ft_atol): Replace with...
73	(ft_strtol): ... this.
74
75	* src/base/ftdbgmem.c (ft_mem_debug_init): Updated.
76	* src/cid/cidparse.c (cid_parser_new): Ditto.
77	* src/type42/t42drivr.c (t42_get_name_index), src/type42/t42objs.c
78	(T42_GlyphSlot_Load): Ditto.
79
802016-07-10  Werner Lemberg  <wl@gnu.org>
81
82	Implement handling of `FREETYPE_PROPERTIES' environment variable.
83
84	Recognizing properties follows in another commit.
85
86	* devel/ftoption.h, include/freetype/config/ftoption.h
87	(FT_CONFIG_OPTION_ENVIRONMENT_PROPERTIES): New macro.
88
89	* include/freetype/config/ftstdlib.h (ft_getenv): New macro.
90
91	* src/base/ftinit.c (ft_set_default_properties): New function to
92	parse `FREETYPE_PROPERTIES' and calling `ft_property_string_set'.
93	(FT_Init_FreeType): Updated.
94
952016-07-09  Werner Lemberg  <wl@gnu.org>
96
97	Add function `ft_property_string_set'.
98
99	This is a preparation for handling an `FREETYPE_PROPERTIES'
100	environment variable to control (some) driver properties.
101
102	No change in functionality.
103
104	* src/base/ftobjs.c (ft_property_do): Add `value_is_string'
105	parameter.
106	(ft_property_string_set): New function.
107	(FT_Property_Set, FT_Property_Get): Updated.
108
109	* include/freetype/internal/ftobjs.h: Updated.
110
111	* include/freetype/internal/services/svprop.h
112	(FT_Properties_SetFunc): Add `value_is_string' parameter.
113
114	* src/autofit/afmodule.c (af_property_set), src/cff/cffdrivr.c
115	(cff_property_set), src/truetype/ttdriver.c (tt_property_set):
116	Updated, emitting an error currently if `value_is_string' is set.
117
1182016-07-09  suzuki toshiya  <mpsuzuki@hiroshima-u.ac.jp>
119
120	[mac] Fix ftexport.sym target in Jamfile.
121
122	* Jamfile: Update the directories of the header files scanned for
123	ftexport.sym.  They were incorrect since the migration of the
124	header files, on 2015-06-22.  Either inexisting include/cache
125	(removed on 2006-03-20) is not needed to be listed explicitly.
126	Now ftmac.h is scanned only in the case of Mac OS & Mac OS X.
127
1282016-07-08  Alexei Podtelezhnikov  <apodtele@gmail.com>
129
130	[smooth] Sub-banding protocol revision.
131
132	Rasterization sub-banding is utilized at large sizes while using a
133	rather small fixed memory pool.  Indeed it is possible to make an
134	educated guess how much memory is necessary at a given size for a
135	given glyph.  It turns out that, for a large majority of European
136	glyphs, you should store about 8 times more boundary pixels than
137	their height.  Or, vice versa, if your memory pool can hold 800
138	pixels the band height should be 100 and you should sub-band
139	anything larger than that.  Should you still run out of memory,
140	FreeType bisects the band but you have wasted some time.  This is
141	what has been implemented in FreeType since the beginning.
142
143	It was overlooked, however, that the top band could grow to twice
144	the default band size leading to unnecessary memory overflows there.
145	This commit fixes that.  Now the bands are distributed more evenly
146	and cannot exceed the default size.
147
148	Now the magic number 8 is really suitable for rather simple European
149	scripts.  For complex Chinese logograms the magic number should be
150	13 but that is subject for another day.
151
152	* src/smooth/ftgrays.c (gray_convert_glyph): Revise sub-banding
153	protocol.
154
1552016-07-07  suzuki toshiya  <mpsuzuki@hiroshima-u.ac.jp>
156
157	[mac] Fix Savannah bug #48417.
158
159	Mac OS X linker throws errors when `-exported_symbol_list' input
160	file includes non-existing symbols.  Reported by Ryan Schmidt.
161
162	* builds/exports.mk: Exclude ftmac.h from the headers for apinames
163	by default.  Include it when ftmac.c would be compiled.
164
1652016-07-06  Werner Lemberg  <wl@gnu.org>
166
167	* src/truetype/ttinterp.c (TInstruction_Function): Removed, unused.
168
1692016-07-05  Werner Lemberg  <wl@gnu.org>
170
171	* Version 2.6.4 released.
172	=========================
173
174
175	Tag sources with `VER-2-6-4'.
176
177	* docs/VERSION.TXT: Update documentation and bump version number to
178	2.6.4.
179
180	* README, Jamfile (RefDoc), builds/windows/vc2005/freetype.vcproj,
181	builds/windows/vc2005/index.html,
182	builds/windows/vc2008/freetype.vcproj,
183	builds/windows/vc2008/index.html,
184	builds/windows/vc2010/freetype.vcxproj,
185	builds/windows/vc2010/index.html,
186	builds/windows/visualc/freetype.dsp,
187	builds/windows/visualc/freetype.vcproj,
188	builds/windows/visualc/index.html,
189	builds/windows/visualce/freetype.dsp,
190	builds/windows/visualce/freetype.vcproj,
191	builds/windows/visualce/index.html,
192	builds/wince/vc2005-ce/freetype.vcproj,
193	builds/wince/vc2005-ce/index.html,
194	builds/wince/vc2008-ce/freetype.vcproj,
195	builds/wince/vc2008-ce/index.html: s/2.6.3/2.6.4/, s/263/264/.
196
197	* include/freetype/freetype.h (FREETYPE_PATCH): Set to 4.
198
199	* builds/unix/configure.raw (version_info): Set to 18:4:12.
200	* CMakeLists.txt (VERSION_PATCH): Set to 4.
201
202	* docs/CHANGES: Updated.
203
2042016-07-05  Werner Lemberg  <wl@gnu.org>
205
206	* src/pfr/pfrsbit.c (pfr_lookup_bitmap_data): Fix compiler warning.
207
2082016-07-04  Alexei Podtelezhnikov  <apodtele@gmail.com>
209
210	[smooth] Variable type revision (part 2).
211
212	* src/smooth/ftgrays.c (TArea): Restore original definition as `int'.
213	(gray_render_line) [FT_LONG64]: Updated.
214	(gray_convert_glyph): 32-bit band bisection stack should be 32 bands.
215	(gray_convert_glyph_inner): Trace successes and failures.
216
2172016-07-04  Werner Lemberg  <wl@gnu.org>
218
219	[autofit] Handle single-point contours as segments.
220
221	Doing so allows us to link them to edges – some fonts like
222	`NotoSansGurmukhi-Regular' have such isolated points sitting exactly
223	on other outlines.
224
225	* src/autofit/aflatin.c (af_latin_hints_compute_segments): Don't
226	ignore one-point contours but handle them specially as one-point
227	segments.
228	(af_latin_hints_compute_edges): Append one-point segments to edges
229	if possible.
230
2312016-07-02  Werner Lemberg  <wl@gnu.org>
232
233	[autofit] Remove unused structure members.
234
235	* src/autofit/afhints.h (AF_SegmentRec, AF_EdgeRec): Remove
236	`num_linked'.
237
238	* src/autofit/afcjk.c (af_cjk_hints_link_segments): Updated.
239
2402016-07-02  Werner Lemberg  <wl@gnu.org>
241
242	[autofit] Update to Unicode 9.0.0.
243
244	* src/autofit/afranges.c (af_arab_nonbase_uniranges,
245	af_cyrl_uniranges): Add new data.
246
2472016-07-01  Alexei Podtelezhnikov  <apodtele@gmail.com>
248
249	[smooth] Variable type revision (part 1).
250
251	This patch restores original `TCoord' definition as `int' so that the
252	rendering pool is used more efficiently on LP64 platforms (unix).
253
254	* src/smooth/ftgrays.c (gray_TWorker, TCell, gray_TBand): Switch some
255	fields to `TCoord'.
256	(gray_find_cell, gray_render_scanline, gray_render_line, gray_hline,
257	gray_sweep, gray_convert_glyph): Updated.
258
2592016-06-28  Alexei Podtelezhnikov  <apodtele@gmail.com>
260
261	[smooth] Minor clean-ups.
262
263	* src/smooth/ftgrays.c (gray_TWorker): Remove redundant `ycount'.
264	(gray_sweep, gray_convert_glyph, gray_dump_cells): Updated.
265
2662016-06-27  Alexei Podtelezhnikov  <apodtele@gmail.com>
267
268	[smooth] Minor clean-ups.
269
270	* src/smooth/ftgrays.c (gray_convert_glyph): Do not use volatile
271	qualifier.
272	(gray_raster_render): Move span initializations from here.
273	(gray_sweep): ... to here and remove unused `target' argument.
274
2752016-06-26  Alexei Podtelezhnikov  <apodtele@gmail.com>
276
277	[pcf] Fix handling of very large fonts (#47708).
278
279	* src/pcf/pcfread.c (pcf_get_encodings): Make `encodingOffset' an
280	unsigned short.
281	Only reject `0xFFFF' as an invalid encoding offset.
282
2832016-06-25  Werner Lemberg  <wl@gnu.org>
284
285	[truetype] Really fix deallocation in case of error (#47726).
286
287	* src/truetype/ttgload.c (load_truetype_glyph): Thinko; initialize
288	`outline.points' also.
289
2902016-06-23  Alexei Podtelezhnikov  <apodtele@gmail.com>
291
292	[smooth] Consolidate memory management.
293
294	* src/smooth/ftgrays.c (gray_init_cells): Remove function.
295	(gray_TWorker): Remove fields that become local variables.
296	(gray_raster_render): Move rendering buffer declaration from here.
297	(gray_convert_glyph): ... to here and update accordingly.
298
2992016-06-22  Alexei Podtelezhnikov  <apodtele@gmail.com>
300
301	[smooth] Consolidate boundary checks.
302
303	Removing the checks from `gray_hline' shaves 1% off rendering speed.
304
305	* src/smooth/ftgrays.c [STANDALONE_]: Duplicate `FT_MIN' and `FT_MAX'.
306	(gray_TWorker): No need to store `clip_box'.
307	(gray_hline): Remove unnecessary boundary checks.
308	(gray_convert_glyph): Move boundary checks from here.
309	(gray_raster_render): ... to here and consolidate.
310
3112016-06-21  Alexei Podtelezhnikov  <apodtele@gmail.com>
312
313	[smooth] Use `FT_Outline_Get_CBox'.
314
315	* src/smooth/ftgrays.c [STANDALONE_]: Duplicate `FT_Outline_Get_CBox'.
316	(gray_compute_cbox): Remove this function.
317	(gray_convert_glyph): Update to use `FT_Outline_Get_CBox'.
318
3192016-06-20  Werner Lemberg  <wl@gnu.org>
320
321	[smooth] Remove compiler warnings.
322
323	* src/smooth/ftgrays.c (gray_convert_glyph): Fix reports from clang.
324
3252016-06-20  Alexei Podtelezhnikov  <apodtele@gmail.com>
326
327	[smooth] Sanitize memory management.
328
329	* src/smooth/ftgrays.c (gray_convert_glyph): Cleaned up.
330
3312016-06-18  Alexei Podtelezhnikov  <apodtele@gmail.com>
332
333	[smooth] Remove `band_shoot' that never worked.
334
335	* src/smooth/ftgrays.c (gray_TWorker): Remove `band_shoot'.
336	(gray_convert_glyph): Updated.
337
3382016-06-17  Alexei Podtelezhnikov  <apodtele@gmail.com>
339
340	[raster, smooth] Handle FT_RENDER_POOL_SIZE better.
341
342	* src/raster/ftraster.c (FT_MAX_BLACK_POOL): New macro.
343	(ft_black_render): Updated.
344	* src/smooth/ftgrays.c (FT_MAX_GRAY_POOL): New macro.
345	(gray_raster_render): Updated.
346
3472016-06-16  Werner Lemberg  <wl@gnu.org>
348
349	* src/base/md5.c: Updated to recent version.
350
3512016-06-14  Alexei Podtelezhnikov  <apodtele@gmail.com>
352
353	* src/smooth/ftgrays.c (gray_hline): Optimize if-condition.
354
3552016-06-13  Werner Lemberg  <wl@gnu.org>
356
357	[autofit] Add support for Cherokee script.
358
359	* src/autofit/afblue.dat: Add blue zone data for Cherokee.
360
361	* src/autofit/afblue.c, src/autofit/afblue.h: Regenerated.
362
363	* src/autofit/afscript.h: Add Cherokee standard characters.
364
365	* src/autofit/afranges.c: Add Cherokee data.
366
367	* src/autofit/afstyles.h: Add Cherokee data.
368
3692016-06-09  David Capello  <davidcapello@gmail.com>
370
371	[cmake] Avoid modifying `ftconfig.h' and `ftoption.h' files.
372
373	* CMakeLists.txt: Each time cmake is run those files are
374	modified and the whole FreeType library is recompiled.  With this
375	change we change the files only if there are real modifications, so
376	we can avoid recompilations.
377
3782016-06-09  Werner Lemberg  <wl@gnu.org>
379
380	[bdf] Check number of properties (#48166).
381
382	* src/bdf/bdflib.c (_bdf_parse_start): Implement.
383
3842016-06-08  Alexei Podtelezhnikov  <apodtele@gmail.com>
385
386	[smooth] Re-enable new line renderer on 64-bit archs.
387
388	* src/smooth/ftgrays.c (gray_render_line): Conditionally re-enable new
389	implementation, where it is safe from overflows.
390
3912016-06-08  Alexei Podtelezhnikov  <apodtele@gmail.com>
392
393	[smooth] Minor clean-ups.
394
395	* src/smooth/ftgrays.c (gray_dump_cells): Move out of the way.
396	(gray_render_span): Remove spurious casts and streamline.
397
3982016-06-07  Werner Lemberg  <wl@gnu.org>
399
400	[autofit] Add support for Ethiopic script.
401
402	* src/autofit/afblue.dat: Add blue zone data for Ethiopic.
403
404	* src/autofit/afblue.c, src/autofit/afblue.h: Regenerated.
405
406	* src/autofit/afscript.h: Add Ethiopic standard characters.
407
408	* src/autofit/afranges.c: Add Ethiopic data.
409
410	* src/autofit/afstyles.h: Add Ethiopic data.
411
4122016-06-07  Werner Lemberg  <wl@gnu.org>
413
414	[autofit] Fix compilation with VS2016 (#48126).
415
416	This compiler doesn't recognize the end-of-comment sequence `*/' if
417	it immediately follows non-ASCII characters.
418
419	* src/autofit/afscript.h: Ensure whitespace before `*/'.
420
4212016-06-04  Werner Lemberg  <wl@gnu.org>
422
423	Fix a test for named instances (#48122).
424
425	This was missed while giving negative face indices an extended
426	meaning.
427
428	* src/base/ftobjs.c (Mac_Read_sfnt_Resource): Implement.
429
4302016-05-31  Nikolaus Waxweiler  <madigens@gmail.com>
431
432	[truetype] Let SHPIX move points in the twilight zone in v40.
433
434	* src/truetype/ttinterp.c (Ins_SHPIX): Allow SHPIX to move points in
435	the twilight zone.  Otherwise, treat SHPIX the same as DELTAP.
436	Unbreaks various fonts such as older versions of Rokkitt and DTL
437	Argo T Light that would glitch severely after calling ALIGNRP after a
438	blocked SHPIX.
439
4402016-05-30  Werner Lemberg  <wl@gnu.org>
441
442	[type42] Support `CharStrings' entry format as created by LilyPond.
443
444	* src/type42/t42parse.c (t42_parse_charstrings): Handle entries
445	having the format
446
447	  (foo) cvn 12345 def
448
4492016-05-28  Werner Lemberg  <wl@gnu.org>
450
451	* src/autofit/afranges.c: Remove `UL' postfix from hex numbers.
452
453	Suggested by Alexei.  `UL' is only needed for 16bit compilers, but
454	it seems noone is using this anymore (and we no longer test whether
455	FreeType compiles in such an environment).  Otherwise, it is easy to
456	add the postfix to the `AF_UNICODE_RANGE' macro.
457
4582016-05-26  Alexei Podtelezhnikov  <apodtele@gmail.com>
459
460	[smooth] Shrink bisection stack.
461
462	The convergence of Bézier flatteners is fast with the deviation
463	from straight line being asymptotically cut 4-fold on each bisection.
464	This justifies smaller bisection stack size.
465
466	* src/smooth/ftgrays.c (gray_TWorker): Remove common `bez_stack'.
467	(gray_render_conic): Create and use conic `bez_stack'. Move back the
468	band analysis from...
469	(gray_conic_to): ... here.
470	(gray_render_cubic): Create and use cubic `bez_stack'. Move back the
471	band analysis from...
472	(gray_cubic_to): ... here.
473	(gray_move_to): Updated.
474
4752016-05-25  Werner Lemberg  <wl@gnu.org>
476
477	[autofit] Fixes for Armenian and Gujarati ranges.
478
479	* src/autofit/afranges.c (af_armn_uniranges): Corrected.
480	(af_guru_nonbase_uniranges): Make U+0A3E a base character.
481
4822016-05-24  Werner Lemberg  <wl@gnu.org>
483
484	[autofit] Add support for Armenian script.
485
486	* src/autofit/afblue.dat: Add blue zone data for Armenian.
487
488	* src/autofit/afblue.c, src/autofit/afblue.h: Regenerated.
489
490	* src/autofit/afscript.h: Add Armenian standard characters.
491
492	* src/autofit/afranges.c: Add Armenian data.
493
494	* src/autofit/afstyles.h: Add Armenian data.
495
4962016-05-23  Werner Lemberg  <wl@gnu.org>
497
498	* builds/unix/unix-cc.in (LINK_LIBRARY): Use `-export-symbols'.
499
500	This was commented about 10 years ago – I think the reason then to
501	disable libtool's `-export-symbols' option was to give some badly
502	programmed applications access to internal FreeType functions.
503
504	I believe that we should no longer take care of such programs; the
505	number of symbols exported should be rather restricted as much as
506	possible.
507
5082016-05-22  Werner Lemberg  <wl@gnu.org>
509
510	[autofit] Add blue-zone support for Gurmukhi script.
511
512	This essentially moves the Gurmukhi script from the `Indic' hinter to
513	the `Latin' hinter.
514
515	* src/autofit/afblue.dat: Add blue zone data for Gurmukhi.
516
517	* src/autofit/afblue.c, src/autofit/afblue.h: Regenerated.
518
519	* src/autofit/afscript.h: Add Gurmukhi standard characters and move
520	data out of AF_CONFIG_OPTION_INDIC block.
521
522	* src/autofit/afranges.c: Move Gurmukhi data out of
523	AF_CONFIG_OPTION_INDIC block.
524
525	* src/autofit/afstyles.h: Update Gurmukhi data; in particular, use
526	AF_WRITING_SYSTEM_LATIN.
527
5282016-05-21  Werner Lemberg  <wl@gnu.org>
529
530	Minor clang++ fixes.
531
532	* src/base/ftobjs.c (FT_Add_Module), src/psaux/psobjs.c
533	(ps_parser_load_field), src/type1/t1load.c (parse_subrs): Add
534	initializer.
535
536	* src/cache/ftccache.h (FTC_CACHE_TRYLOOP_END): Avoid implicit
537	conversion from NULL to boolean.
538
5392016-05-21  Werner Lemberg  <wl@gnu.org>
540
541	Work around a bug of the C 8.0.0.1 compiler on AIX 5.3 (#47955).
542
543	* include/freetype/internal/ftmemory.h (cplusplus_typeof): Use
544	braces for `extern "C++"'.
545
5462016-05-17  Nikolaus Waxweiler  <madigens@gmail.com>
547
548	[truetype] Make TT_LOADER_SET_PP support subpixel hinting [3/3].
549
550	* src/truetype/ttgload.c (TT_LOADER_SET_PP): Replace macro with...
551	(tt_loader_set_pp): ... this new function.
552	Update all callers.
553
5542016-05-17  Nikolaus Waxweiler  <madigens@gmail.com>
555
556	[truetype] New implementation of v38 bytecode interpreter [2/3].
557
558	This patch actually modifies the bytecode interpreter.
559
560	See added comments in `ttinterp.h' for more information on this and
561	the following commit in the series.
562
563	* src/truetype/ttinterp.c (SUBPIXEL_HINTING): Replaced by...
564	(NO_SUBPIXEL_HINTING, SUBPIXEL_HINTING_INFINALITY,
565	SUBPIXEL_HINTING_MINIMAL): ...new macros.
566	(Direct_Move, Direct_Move_X, Direct_Move_Y): Handle backward
567	compatibility.
568	Updated.
569	(Ins_RS, Ins_FDEF, Ins_ENDF, Ins_CALL, Ins_LOOPCALL, Ins_MD):
570	Updated.
571	(Ins_INSTCTRL): Handle native ClearType mode flag.
572	Updated.
573	(Ins_FLIPPT, Ins_FLIPRGON, Ins_FLIPRGOFF): Handle backward
574	compatibility.
575	(Move_Zp2_Point): Ditto.
576	(Ins_SHP): Updated.
577	(Ins_SHPIX): Handle backward compatibility.
578	Updated.
579	(Ins_MSIRP, Ins_MDAP, Ins_MIAP, Ins_MDRP, Ins_MIRP): Updated.
580	(Ins_ALIGNRP): Updated.
581	(Ins_IUP, Ins_DELTAP): Handle backward compatibility.
582	Updated.
583	(Ins_GETINFO): Handle v38 flags.
584	Updated.
585	(TT_RunIns): Handle backward compatibility mode.
586	Updated.
587
5882016-05-17  Nikolaus Waxweiler  <madigens@gmail.com>
589
590	[truetype] New implementation of v38 bytecode interpreter [1/3].
591
592	This patch prepares data structures and the like.
593
594	See added comments in `ttinterp.h' for more information on this and
595	the following commits in the series.
596
597	* devel/ftoption.h, include/freetype/config/ftoption.h
598	(TT_CONFIG_OPTION_SUBPIXEL_HINTING): Assign values to differentiate
599	between subpixel versions.
600	(TT_SUPPORT_SUBPIXEL_HINTING_INFINALITY,
601	TT_SUPPORT_SUBPIXEL_HINTING_MINIMAL): New macros.
602
603	* include/freetype/ftttdrv.h (TT_INTERPRETER_VERSION_40): New macro.
604
605	* include/freetype/internal/tttypes.h (TT_FaceRec): Updated.
606
607	* src/truetype/ttinterp.h (TT_ExecContextRec): Define new fields
608	`subpixel_hinting_lean', `vertical_lcd_lean',
609	`backward_compatibility', `iupx_called', iupy_called', and
610	`grayscale_cleartype' for new hinting mode.
611
612	* src/truetype/ttdriver.c (tt_property_set): Handle v38 and v40
613	interpreters conditionally.
614
615	* src/truetype/ttgload.c (TT_Hint_Glyph): Save phantom points unless
616	in v38 backward compatibility mode.
617	Updated.
618	(compute_glyph_metrics): Add v38 backward compatibility mode
619	constraint for adjusting advance widths.
620	Updated.
621	(tt_loader_init): Handle new flags `subpixel_hinting_lean',
622	`grayscale_cleartype', and `vertical_lcd_lean'.
623	Updated.
624	(tt_get_metrics, TT_Process_Simple_Glyph, TT_LOADER_SET_PP):
625	Updated.
626
627	* src/truetype/ttobjs.c (tt_driver_init): Conditionally set
628	default interpreter version number.
629
630	* src/truetype/ttsubpix.c, src/truetype/ttsubpix.h: Updated.
631
6322016-05-17  Werner Lemberg  <wl@gnu.org>
633
634	[cff] Fix matrix scaling (#47848).
635
636	* include/freetype/config/ftstdlib.h (FT_LONG_MIN): New macro.
637
638	* src/cff/cffparse.c (cff_parse_font_matrix): Use largest scaling
639	value of all matrix coefficients to scale matrix.
640
641	* src/cff/cffobjs.c (cff_face_init): Use `matrix->yx' member for
642	matrix normalization if `matrix->yy' is zero.
643
6442016-05-16  Werner Lemberg  <wl@gnu.org>
645
646	[base] Reject invalid sfnt Mac resource (#47891).
647
648	* src/base/ftobjs.c (open_face_PS_from_sfnt_stream): Check validity
649	of `CID ' and `TYPE1' table offset and length.
650
6512016-05-16  Werner Lemberg  <wl@gnu.org>
652
653	[cid] Fix scanning for `StartData' and `/sfnts' (#47892).
654
655	* src/cid/cidparse.c (STARTDATA, STARTDATA_LEN, SFNTS, SFNTS_LEN):
656	New macros.
657	(cid_parser_new): Fix and document algorithm.
658
6592016-05-16  suzuki toshiya  <mpsuzuki@hiroshima-u.ac.jp>
660
661	[truetype] Improve the recursive reference detector.
662
663	The previous fix for #46372 misunderstood a composite glyph referring
664	same component twice as a recursive reference.  See the discussion
665
666	  https://lists.gnu.org/archive/html/freetype/2016-05/msg00000.html
667
668	Thanks to Khaled Hosny for finding this issue.
669
670	* src/truetype/ttgload.c (ft_list_get_node_at): A function to get
671	the i-th node from FT_List.
672	(load_truetype_glyph): In the traversal scan of the reference tree
673	in the composite glyph, we clear the nodes filled by previous
674	sibling chain.
675
6762016-05-07  Werner Lemberg  <wl@gnu.org>
677
678	[cache] Allow value 0 for face ID.
679
680	We never dereference `face_id', and some implementations might use a
681	running number instead of a pointer.  Additionally, disallowing
682	value zero was undocumented.
683
684	* src/cache/ftccmap.c (FTC_CMapCache_Lookup), src/cache/ftcmanag.c
685	(FTC_Manager_LookupFace, FTC_Manager_RemoveFaceID): Remove test for
686	`face_id'.
687
6882016-05-05  Alexei Podtelezhnikov  <apodtele@gmail.com>
689
690	[smooth] More efficient accounting of conic splits and draws.
691
692	A single decrement counter of segments to draw, instead of an array,
693	contains all the information necessary to decide when to split and
694	when to draw a conic segment. The number of splits before each draw is
695	equal to the number of trailing zeros in the counter.
696
697	* src/smooth/ftgrays.c (gray_TWorker): Remove `lev_stack'.
698	(gray_render_conic): Updated to use decrement counter of segments.
699
7002016-05-05  Werner Lemberg  <wl@gnu.org>
701
702	[cff, truetype] Fix logic for `FT_Property_Set'.
703
704	Otherwise some properties could be set to arbitrary values, which is
705	harmless, but querying could give wrong positive results.
706
707	* src/cff/cffdrivr.c (cff_property_set) [hinting-engine],
708	* src/truetype/ttdriver.c (tt_property_set) [interpreter-version]:
709	Only allow defined values.
710
7112016-04-25  Werner Lemberg  <wl@gnu.org>
712
713	[autofit] Add blue-zone support for Gujarati script.
714
715	This essentially moves the Gujarati script from the `Indic' hinter to
716	the `Latin' hinter.
717
718	* src/autofit/afblue.dat: Add blue zone data for Gujarati.
719
720	* src/autofit/afblue.c, src/autofit/afblue.h: Regenerated.
721
722	* src/autofit/afscript.h: Add Gujarati standard characters and move
723	data out of AF_CONFIG_OPTION_INDIC block.
724
725	* src/autofit/afranges.c: Move Gujarati data out of
726	AF_CONFIG_OPTION_INDIC block.
727
728	* src/autofit/afstyles.h: Update Gujarati data; in particular, use
729	AF_WRITING_SYSTEM_LATIN.
730
7312016-04-24  Werner Lemberg  <wl@gnu.org>
732
733	Minor.
734
735	* include/freetype/freetype.h (FT_HAS_*, FT_IS_*): Protect macro
736	argument with parentheses.
737
7382016-04-24  Werner Lemberg  <wl@gnu.org>
739
740	[truetype] Fix deallocation in case of error (#47726).
741
742	* src/truetype/ttgload.c (load_truetype_glyph): Initialize fields in
743	`outline' that are going to be deallocated in case of error.
744
7452016-04-23  Werner Lemberg  <wl@gnu.org>
746
747	[autofit] Improve Georgian blue zone characters.
748
749	Suggested by Akaki Razmadze <razmadzekoko@gmail.com>.
750
751	* src/autofit/afblue.dat (AF_BLUE_STRING_GEORGIAN_MKHEDRULI_BOTTOM):
752	Updated.
753
754	* src/autofit/afblue.c: Regenerated.
755
7562016-04-16  David Capello  <davidcapello@gmail.com>
757
758	[cmake] Honor SKIP_INSTALL_* settings (as used in zlib).
759
760	As FreeType depends on zlib, if we don't install zlib (e.g., because
761	we defined SKIP_INSTALL_ALL), FreeType cannot be installed, too
762	(cmake triggers an error saying that FreeType cannot be installed
763	because zlib target isn't in the export set).
764
765	* CMakeLists.txt: Honor `SKIP_INSTALL_HEADERS',
766	`SKIP_INSTALL_LIBRARIES', and `SKIP_INSTALL_ALL' settings.
767
7682016-04-16  Behdad Esfahbod  <behdad@behdad.org>
769
770	[truetype] Another fix for non-intermediate GX tuples.
771
772	* src/truetype/ttgxvar.c (ft_var_apply_tuple): Add some missing
773	cases.
774
7752016-04-12  Alexei Podtelezhnikov  <apodtele@gmail.com>
776
777	Remove forgotten macro.
778
779	* include/freetype/internal/internal.h
780	[FT_INTERNAL_POSTSCRIPT_GLOBALS_H]: Remove.
781
7822016-04-09  Werner Lemberg  <wl@gnu.org>
783
784	[autofit] Add support for Georgian scripts.
785
786	Georgian is problematic, since `uppercase' forms of Mkhedruli
787	(called Mtavruli) are not yet defined in Unicode, which means that
788	proper blue zones can't be defined.  However, there is already a
789	proposal submitted to Unicode; see
790
791	  https://www.unicode.org/L2/L2016/16034-n4707-georgian.pdf
792
793	Additionally, due to historical reasons, Unicode treats Khutsuri as
794	the same script as Mkhedruli, and so does OpenType.  However, since
795	the two scripts have completely different shapes it can happen that
796	blue zones differ considerably.  The tag `geok' used here (derived
797	from ISO 15924) to differentiate the two scripts is not an OpenType
798	tag in use.  If we now have a font that contains both glyphs for
799	Mkhedruli and Khutsuri, and it uses OpenType features for both also,
800	HarfBuzz unavoidably treats all glyphs as `geor'.  As a consequence,
801	blue zones for `geok' are not used for glyphs involved in the
802	OpenType features.
803
804	An issue not yet resolved is which OpenType feature should be used
805	to access Mtavruli glyph shapes; right now, FreeType doesn't set up
806	support for them, but it is easy to add them later on as soon as
807	more information is available.
808
809	* src/autofit/afblue.dat: Add blue zone data for Georgian.
810
811	* src/autofit/afblue.c, src/autofit/afblue.h: Regenerated.
812
813	* src/autofit/afscript.h: Add Georgian standard characters.
814
815	* src/autofit/afranges.c: Add Georgian data.
816
817	* src/autofit/afstyles.h: Add Georgian data.
818
8192016-04-05  Werner Lemberg  <wl@gnu.org>
820
821	[autofit] Provide dummy blue zone for pseudo script `none'.
822
823	Even if the dummy hinter is used as the handler for `none' (which
824	doesn't use blue zones), it is more consistent than the old value
825	(which was 0), pointing to Arabic...
826
827	* src/autofit/afblue.dat: Add `AF_BLUE_STRINGSET_NONE'.
828	* src/autofit/afblue.c, src/autofit/afblue.h: Regenerated.
829
830	* src/autofit/afstyles.h (none_dflt): Use AF_BLUE_STRINGSET_NONE.
831
8322016-03-30  Werner Lemberg  <wl@gnu.org>
833
834	* src/pfr/pfrload.c (pfr_aux_name_load): Thinko (#47567).
835
8362016-03-30  Werner Lemberg  <wl@gnu.org>
837
838	* src/pfr/pfrload.c (pfr_log_font_count): Better font size estimate.
839
8402016-03-30  Werner Lemberg  <wl@gnu.org>
841
842	* src/pfr/pfrload.c (pfr_aux_name_load): Fix memory leak (#47567).
843
8442016-03-29  Werner Lemberg  <wl@gnu.org>
845
846	* src/base/ftadvanc.c (FT_Get_Advances): Fix invalid left shift.
847
8482016-03-29  Werner Lemberg  <wl@gnu.org>
849
850	[pfr] Fix binary search (#47514).
851
852	* src/pfr/pfrsbit.c (pfr_lookup_bitmap_data): Handle border
853	conditions correctly.
854
8552016-03-29  Werner Lemberg  <wl@gnu.org>
856
857	[pfr] Minor.
858
859	* src/pfr/pfrsbit.c (pfr_lookup_bitmap_data): Replace `left',
860	`right', and `middle' with `min', `max', and `mid' as used in other
861	FreeType binary search code.
862	(pfr_load_bitmap_metrics): Fix invalid left shift.
863
8642016-03-29  Werner Lemberg  <wl@gnu.org>
865
866	* src/pfr/pfrtypes.h: Replace all enums with macros.
867
868	We need `~FOO' to unset bits, and only with unsigned values (which
869	`enum' isn't normally) this works cleanly.
870
8712016-03-26  Werner Lemberg  <wl@gnu.org>
872
873	[pfr] Robustify bitmap strike handling (#47514).
874
875	We did a binary search for a charcode without ensuring that the
876	searched data is ordered.  Validating the order is now done lazily,
877	this is, the first access to a bitmap glyph triggers the order check
878	in the corresponding bitmap strike.
879
880	* src/pfr/pfrtypes.h (PFR_BitmapFlags): New values
881	`PFR_BITMAP_VALID_CHARCODES' and `PFR_BITMAP_CHARCODES_VALIDATED'.
882
883	* src/pfr/pfrsbit.c (pfr_lookup_bitmap_data): Make `flags' argument
884	a pointer.  Handle new PFR_BITMAP_XXX flags.
885	(pfr_slot_load_bitmap): Updated.
886
8872016-03-26  Werner Lemberg  <wl@gnu.org>
888
889	[pfr] Fix handling of compound glyphs.
890
891	Extra items are indicated with different bit positions.
892
893	* src/pfr/pfrtypes.h (PFR_GlyphFlags): Replace
894	`PFR_GLYPH_EXTRA_ITEMS' with `PFR_GLYPH_SIMPLE_EXTRA_ITEMS' and
895	`PFR_GLYPH_COMPOUND_EXTRA_ITEMS'.
896
897	* src/pfr/pfrgload.c (pfr_glyph_load_simple,
898	pfr_glyph_load_compound): Use them.
899
9002016-03-25  Werner Lemberg  <wl@gnu.org>
901
902	[pfr] Minor.
903
904	* src/pfr/pfrsbit.c, src/pfr/pfrobjs.c: Use flag names instead of
905	bare numbers.
906
9072016-03-25  Werner Lemberg  <wl@gnu.org>
908
909	[pfr] Various clang sanitizer fixes.
910
911	* src/pfr/pfrsbit.c (pfr_load_bitmap_metrics): Correctly handle
912	signed nibbles.
913	(pfr_slot_load_bitmap): Correctly exit frame in case of error.
914	Fix invalid left shifts.
915
9162016-03-23  Werner Lemberg  <wl@gnu.org>
917
918	Rename `VERSION.DLL' (#47472).
919
920	* docs/VERSION.DLL: Renamed to...
921	* docs/VERSIONS.TXT: ...this.
922
9232016-03-23  Werner Lemberg  <wl@gnu.org>
924
925	[raster, smooth] Directly test outline size (#47500).
926
927	This improves stand-alone compilation.
928
929	* src/base/ftoutln.c (FT_Outline_Render): Move cbox size test to...
930
931	* src/raster/ftraster.c (ft_black_render), src/smooth/ftgrays.c
932	(gray_raster_render): ...these functions.
933
9342016-03-23  Werner Lemberg  <wl@gnu.org>
935
936	[raster, smooth] Fix some clang sanitizer runtime issues.
937
938	* src/raster/ftraster.c (ft_black_reset, ft_black_set_mode,
939	ft_black_render): Harmonize signatures with `ftimage.h'.
940
941	* src/smooth/ftgrays.c (gray_raster_render, gray_raster_reset):
942	Ditto.
943
9442016-03-22  Werner Lemberg  <wl@gnu.org>
945
946	* src/truetype/ttgload.c (TT_Load_Simple_Glyph): Minor.
947
948	This fixes an AddressSanitizer issue:
949
950	  ttgload.c:430:7: runtime error: null pointer passed as argument 1,
951	                   which is declared to never be null
952
9532016-03-21  Werner Lemberg  <wl@gnu.org>
954
955	* src/autofit/afhints.c (af_glyph_hints_reload): Thinko.
956
957	This fixes the previous commit to this file.
958
9592016-03-21  Alexei Podtelezhnikov  <apodtele@gmail.com>
960
961	[smooth] Partly revert recent changes.
962
963	* src/smooth/ftgrays.c (gray_conic_to, gray_cubic_to): Rework
964	conditions to fix rendering issues.
965
9662016-03-20  Werner Lemberg  <wl@gnu.org>
967
968	[autofit] Show `near' points in tracing.
969
970	* src/autofit/afhints.h (AF_FLAG_NEAR): New macro.
971
972	* src/autofit/afhints.c (af_glyph_hints_dump_points): Implement it.
973	(af_glyph_hints_reload): Handle AF_FLAG_NEAR.
974
9752016-03-18  Alexei Podtelezhnikov  <apodtele@gmail.com>
976
977	[smooth] Minor refactoring and microoptimizations.
978
979	* src/smooth/ftgrays.c (gray_render_conic, gray_render_cubic): Move
980	band clipping from here.
981	(gray_conic_to, gray_cubic_to): ... to here.
982	(gray_render_line, gray_render_scanline): Initialize variables closer
983	to their use.
984
9852016-03-17  Alexei Podtelezhnikov  <apodtele@gmail.com>
986
987	[smooth] Minor refactoring.
988
989	* src/smooth/ftgrays.c (gray_render_conic, gray_render_cubic): Move
990	upscaling from here.
991	(gray_conic_to, gray_cubic_to): ... to here.
992
9932016-03-15  Werner Lemberg  <wl@gnu.org>
994
995	* src/autofit/aflatin.c (af_latin_compute_stem_width): Optimize.
996
9972016-03-14  Alexei Podtelezhnikov  <apodtele@gmail.com>
998
999	[smooth] Temporarily revert 6eb6158dd787 (#47114).
1000
1001	* src/smooth/ftgrays.c (gray_render_line): Old implementation.
1002
10032016-03-12  Werner Lemberg  <wl@gnu.org>
1004
1005	[ftfuzzer] Improve coverage of rasterfuzzer.
1006
1007	* src/tools/ftfuzzer/rasterfuzzer.cc (LLVMFuzzerTestOneInput): Use
1008	input data for `tags' array also.
1009	Trim input data to get more positive hits.
1010
10112016-03-11  Pavlo Denysov  <paul.kiev+savannah@gmail.com>
1012
1013	Fix CMake issues for iOS (patch #8941).
1014
1015	* CMakeLists.txt (CMAKE_TOOLCHAIN_FILE): Fix directory.
1016	* builds/cmake/iOS.cmake: No longer enforce gcc.
1017
10182016-03-09  Behdad Esfahbod  <behdad@behdad.org>
1019
1020	[truetype] Fix handling of non-intermediate GX tuples.
1021
1022	We probably did not notice this as all fonts we tested had only
1023	tuple_coords[i] be +1 or -1 for non-intermediate tuples.
1024
1025	* src/truetype/ttgxvar.c (ft_var_apply_tuple): Implement it.
1026
10272016-03-06  Alexei Podtelezhnikov  <apodtele@gmail.com>
1028
1029	[base] Refuse to render enormous outlines (#47114).
1030
1031	The goal is to avoid integer overflows in the rendering algorithms.
1032	The limit is chosen arbitrarily at some 2^18 pixels, which should be
1033	enough for modern devices including printers.
1034
1035	* src/base/ftoutln.c (FT_Outline_Render): Check CBox and reject
1036	enormous outlines.
1037
10382016-03-06  Alexei Podtelezhnikov  <apodtele@gmail.com>
1039
1040	[smooth] Replace left shifts with multiplications (#47114).
1041
1042	* src/smooth/ftgrays.c (SUBPIXELS, UPSCALE, DOWNSCALE): Do it.
1043
10442016-03-05  Werner Lemberg  <wl@gnu.org>
1045
1046	[autofit] Avoid excessive stem length rounding (#25392).
1047
1048	* src/autofit/aflatin.c (af_latin_compute_stem_width): Add argument
1049	to pass difference between hinted and unhinted position of base
1050	point; use this to adjust the stem width depending on the PPEM so
1051	that it doesn't become too large under certain circumstances.
1052	Update all callers using value 0 for this argument except...
1053	(af_latin_align_linked_edge): Pass position delta of base point to
1054	`af_latin_compute_stem_width'.
1055
10562016-03-05  J Raynor  <jxraynor@gmail.com>
1057
1058	Make FreeType compile on AIX out of the box.
1059
1060	* builds/unix/configure.raw (XX_ANSIFLAGS): Don't use `-ansi' on
1061	AIX.
1062
10632016-03-01  Werner Lemberg  <wl@gnu.org>
1064	    Kostya Serebryany  <kcc@google.com>
1065
1066	[ftfuzzer] Add unit for testing smooth and black rasterizers.
1067
1068	* src/tools/ftfuzzer/rasterfuzzer.cc: New file.
1069
10702016-03-01  Werner Lemberg  <wl@gnu.org>
1071
1072	[autofit] Fix reallocation error introduced in 2016-02-27 (#47310).
1073
1074	* src/autofit/aflatin.c (af_latin_hints_compute_segments): Reassign
1075	`prev_segment' after reallocation.
1076
10772016-03-01  Werner Lemberg  <wl@gnu.org>
1078
1079	Fix clang warnings.
1080
1081	* src/autofit/aflatin.c (af_latin_hints_compute_segments): Use
1082	FT_UShort for `min_flags' and `max_flags'.
1083	Initialize `prev_*' variables.
1084
1085	* src/cff/cffobjs.c (cff_face_init) [FT_DEBUG_LEVEL_TRACE]: Fix
1086	types of local variables.
1087
1088	* src/smooth/ftgrays.c (gray_dump_cells) [FT_DEBUG_LEVEL_TRACE]:
1089	Update `printf' format string.
1090
1091	* src/tools/ftfuzzer/ftfuzzer.cc (setIntermediateAxis): Add cast.
1092	(LLVMFuzzerTestOneInput): Fix loop type.
1093
10942016-02-29  Werner Lemberg  <wl@gnu.org>
1095
1096	[autofit] Add blue-zone support for Sinhala script.
1097
1098	This essentially moves the Sinhala script from the `Indic' hinter to
1099	the `Latin' hinter.
1100
1101	* src/autofit/afblue.dat: Add blue zone data for Sinhala.
1102
1103	* src/autofit/afblue.c, src/autofit/afblue.h: Regenerated.
1104
1105	* src/autofit/afscript.h: Add Sinhala standard character and move data
1106	out of AF_CONFIG_OPTION_INDIC block.
1107
1108	* src/autofit/afranges.c: Move Sinhala data out of
1109	AF_CONFIG_OPTION_INDIC block.
1110
1111	* src/autofit/afstyles.h: Update Sinhala data; in particular, use
1112	AF_WRITING_SYSTEM_LATIN.
1113
11142016-02-27  Werner Lemberg  <wl@gnu.org>
1115
1116	[autofit] Properly handle spikes pointing to the x-axis.
1117
1118	An example that gets better rendered is glyph `uusignTaml' (glyph
1119	index 2286) in font `FreeSerif.ttf' (Version 0412.2263) at 22ppem.
1120
1121	* src/autofit/aflatin.c (af_latin_hints_compute_segments): Properly
1122	handle segments where the last point of the first segment is
1123	identical to the first point in the second one.  This can happen for
1124	malformed fonts or spikes.  We either merge the new segment with the
1125	previous one (both segments point into the same direction), or we
1126	discard the shorter segment if they point into different directions.
1127
11282016-02-27  Werner Lemberg  <wl@gnu.org>
1129
1130	[autofit] Minor code clean-up.
1131
1132	* src/autofit/aflatin.c (af_latin_hints_compute_segments): Change
1133	some local variable names to better differentiate between values
1134	along a segment and values orthogonal to it.
1135
11362016-02-26  Werner Lemberg  <wl@gnu.org>
1137
1138	[autofit] Improve BOUND action.
1139
1140	In complex glyph shapes, the original logic was too simple to cater
1141	for situations that would actually need something similar to PS Hint
1142	masks.  This fix should alleviate the worst cases.
1143
1144	* src/autofit/aflatin.c (af_latin_hint_edges): Don't allow
1145	complete disappearance of stems.
1146
11472016-02-25  Werner Lemberg  <wl@gnu.org>
1148
1149	[autofit] Add blue-zone support for Tamil script.
1150
1151	This essentially moves the Tamil script from the `Indic' hinter to
1152	the `Latin' hinter.
1153
1154	* src/autofit/afblue.dat: Add blue zone data for Tamil.
1155
1156	* src/autofit/afblue.c, src/autofit/afblue.h: Regenerated.
1157
1158	* src/autofit/afscript.h: Add Tamil standard character and move data
1159	out of AF_CONFIG_OPTION_INDIC block.
1160
1161	* src/autofit/afranges.c: Move Tamil data out of
1162	AF_CONFIG_OPTION_INDIC block.
1163
1164	* src/autofit/afstyles.h: Update Tamil data; in particular, use
1165	AF_WRITING_SYSTEM_LATIN.
1166
11672016-02-18  Werner Lemberg  <wl@gnu.org>
1168
1169	[autofit] Add blue-zone support for Malayalam script.
1170
1171	This essentially moves the Malayalam script from the `Indic' hinter
1172	to the `Latin' hinter.
1173
1174	* src/autofit/afblue.dat: Add blue zone data for Malayalam.
1175
1176	* src/autofit/afblue.c, src/autofit/afblue.h: Regenerated.
1177
1178	* src/autofit/afscript.h: Add Malayalam standard characters and move
1179	data out of AF_CONFIG_OPTION_INDIC block.
1180
1181	* src/autofit/afranges.c: Move Malayalam data out of
1182	AF_CONFIG_OPTION_INDIC block.
1183
1184	* src/autofit/afstyles.h: Update Malayalam data; in particular, use
1185	AF_WRITING_SYSTEM_LATIN.
1186
11872016-02-16  Alexei Podtelezhnikov  <apodtele@gmail.com>
1188
1189	[smooth] Fix integer overflow (#47114).
1190
1191	* src/smooth/ftgrays.c (TArea): Make it unconditionally `long'.
1192
11932016-02-15  Werner Lemberg  <wl@gnu.org>
1194
1195	* src/cff/cffparse.c (cff_parse_multiple_master): Improve tracing.
1196
11972016-02-15  Werner Lemberg  <wl@gnu.org>
1198
1199	[cff] Handle T2 operator only with old CFF engine (#47157).
1200
1201	* src/cff/cffparse.c (cff_parser_run) <opcode 31>: Enclose with
1202	#ifdef CFF_CONFIG_OPTION_OLD_ENGINE...#endif.
1203
12042016-02-15  Werner Lemberg  <wl@gnu.org>
1205
1206	[cff] Partially handle `load' and `store' ops in old CFF engine.
1207
1208	Now all glyphs of MM CFFs like `ITCGaramondMM-It.otf' can be
1209	displayed.
1210
1211	* src/cff/cffgload.c (cff_decoder_parse_charstrings) <cff_op_store,
1212	cff_op_load>: Partially implement it.
1213
1214	* src/cff/cffparse.c (cff_parser_init): Add new parameter to pass
1215	the number of Multiple Master axes.
1216	Update all callers.
1217	(cff_parse_multiple_master): Get number of axes.
1218	(cff_parser_run) <opcode 31>: Updated.
1219	* src/cff/cffparse.h: Updated.
1220	(CFF_ParserRec): Add `num_axes' field.
1221
1222	* src/cff/cffload.c: Updated.
1223
1224	* src/cff/cfftypes.h (CFF_FontRecDictRec): Add `num_axes' field.
1225
12262016-02-15  Werner Lemberg  <wl@gnu.org>
1227
1228	[cff] Correctly trace SIDs that contain NULL bytes.
1229
1230	We need this to properly trace Multiple Master CFFs, which contain
1231	two SIDs that are charstrings.
1232
1233	This commit makes FreeType also show the last SID, omitted
1234	previously due to a bug.
1235
1236	* src/cff/cfftypes.h (CFF_FontRec): Add `string_pool_size' field.
1237
1238	* src/cff/cffload.c (cff_index_get_pointers): Add argument to return
1239	the pool size.
1240	Update all callers.
1241
1242	* src/cff/cffobjs.c (cff_face_init) [FT_DEBUG_LEVEL_TRACE]: Directly
1243	access `cff->strings' to display the non-default strings.
1244
12452016-02-14  Werner Lemberg  <wl@gnu.org>
1246
1247	* src/base/fthash.c: Include FT_INTERNAL_MEMORY_H.
1248
12492016-02-14  Werner Lemberg  <wl@gnu.org>
1250
1251	* src/cff/cffparse.c: Include `cffgload.h'.
1252
1253	Problem reported by Colin Walters <walters@verbum.org>.
1254
12552016-02-14  Werner Lemberg  <wl@gnu.org>
1256
1257	[cff] Make old CFF engine show MM CFFs (without variations).
1258
1259	The new code only displays the first master in the font.
1260
1261	* src/cff/cffgload.c (cff_decode_parse_charstrings): Add new
1262	parameter to allow function calls from dictionaries also.
1263	<cff_op_blend>: Partially implement it.
1264	Update all callers.
1265	* src/cff/cffgload.h: Updated.
1266
1267	* src/cff/cffparse.c (cff_parser_init): Add new parameter to pass the
1268	number of Multiple Master designs.
1269	Update all callers.
1270	(cff_parse_multiple_master): New function to rudimentarily parse
1271	operator.
1272	(cff_parser_run): Handle `T2' operator.
1273	* src/cff/cffparse.h: Updated.
1274	(CFF_ParserRec): Add `num_designs' field.
1275
1276	* src/cff/cffload.c: Updated.
1277
1278	* src/cff/cfftoken.h: Handle `MultipleMaster' operator.
1279
1280	* src/cff/cfftypes.h (CFF_FontRecDictRec): Add `num_designs' field.
1281
1282	* src/sfnt/sfobjs.c (sfnt_init_face): Don't handle `fvar' table for
1283	MM CFFs.
1284
12852016-02-09  Werner Lemberg  <wl@gnu.org>
1286
1287	[docmaker] Don't emit trailing newlines.
1288
1289	* src/tools/docmaker/tohtml.py (HtmlFormatter::make_html_code):
1290	Use `rstrip'.
1291
12922016-02-07  Werner Lemberg  <wl@gnu.org>
1293
1294	* Version 2.6.3 released.
1295	=========================
1296
1297
1298	Tag sources with `VER-2-6-3'.
1299
1300	* docs/VERSION.DLL: Update documentation and bump version number to
1301	2.6.3.
1302
1303	* README, Jamfile (RefDoc), builds/windows/vc2005/freetype.vcproj,
1304	builds/windows/vc2005/index.html,
1305	builds/windows/vc2008/freetype.vcproj,
1306	builds/windows/vc2008/index.html,
1307	builds/windows/vc2010/freetype.vcxproj,
1308	builds/windows/vc2010/index.html,
1309	builds/windows/visualc/freetype.dsp,
1310	builds/windows/visualc/freetype.vcproj,
1311	builds/windows/visualc/index.html,
1312	builds/windows/visualce/freetype.dsp,
1313	builds/windows/visualce/freetype.vcproj,
1314	builds/windows/visualce/index.html,
1315	builds/wince/vc2005-ce/freetype.vcproj,
1316	builds/wince/vc2005-ce/index.html,
1317	builds/wince/vc2008-ce/freetype.vcproj,
1318	builds/wince/vc2008-ce/index.html: s/2.6.2/2.6.3/, s/262/263/.
1319
1320	* include/freetype/freetype.h (FREETYPE_PATCH): Set to 3.
1321
1322	* builds/unix/configure.raw (version_info): Set to 18:3:12.
1323	* CMakeLists.txt (VERSION_PATCH): Set to 3.
1324
1325	* docs/CHANGES: Updated.
1326
13272016-02-07  Werner Lemberg  <wl@gnu.org>
1328
1329	Fix another runtime error found by clang's sanitizer (#47082).
1330
1331	* src/base/ftstroke.c (ft_stroke_border_export): Properly handle
1332	empty input buffer.
1333
13342016-02-07  Werner Lemberg  <wl@gnu.org>
1335
1336	Fix runtime errors found by clang's sanitizer (#47082).
1337
1338	* src/base/ftobjs.c (FT_Render_Glyph_Internal), src/base/ftoutln.c
1339	(FT_Outline_Copy), src/cache/ftcsbits.c (ftc_sbit_copy_bitmap):
1340	Properly handle empty input buffer.
1341
13422016-02-07  Werner Lemberg  <wl@gnu.org>
1343
1344	[cff] Minor.
1345
1346	* src/cff/cffgload.c (cff_decoder_parse_charstrings) <cff_op_sqrt>:
1347	Remove dead code.
1348
13492016-02-07  Werner Lemberg  <wl@gnu.org>
1350
1351	[cff] Implement missing operators in new engine (except `random').
1352
1353	* src/cff/cf2font.h (CF2_STORAGE_SIZE): New macro.
1354
1355	* src/cff/cf2intrp.c (cf2_interpT2CharString): Implement the
1356	following operators: abs, add, and, div, drop, dup, eq, exch, get,
1357	ifelse, index, mul, neg, not, or, put, roll, sqrt, sub.
1358
1359	* src/cff/cf2stack.h, src/cff/cf2stack.c (cf2_stack_roll): New
1360	auxiliary function for `roll' operator.
1361
13622016-02-06  Werner Lemberg  <wl@gnu.org>
1363
1364	[cff] Fix some Type 2 operators in old CFF engine.
1365
1366	* src/cff/cffgload.c (cff_decoder_parse_charstrings): Fix `eq'
1367	operator, add `not' and (unsupported) `blend' operators.
1368
13692016-02-05  Sebastian Rasmussen  <sebras@gmail.com>
1370
1371	Make direct call of `make install' work (#47072).
1372
1373	* builds/unix/unix-def.in (freetype-config): Make sure
1374	`freetype-config' is generated for both make targets (`all' and
1375	`install').
1376
13772016-02-05  Werner Lemberg  <wl@gnu.org>
1378
1379	[base] Fix advance width loading for MM and GX fonts (#47064).
1380
1381	* src/base/ftadvanc.c (LOAD_ADVANCE_FAST_CHECK): Return false for
1382	MM and GX fonts.
1383	Update callers.
1384
13852016-02-03  Werner Lemberg  <wl@gnu.org>
1386
1387	[cff] Fix handling of face_index == -1 for pure CFF.
1388
1389	* src/cff/cffobjs.c (cff_face_init): Return correct number of faces.
1390
13912016-01-30  Werner Lemberg  <wl@gnu.org>
1392
1393	[autofit] Minor tracing improvement.
1394
1395	* src/autofit/afhints.c (af_glyph_hints_dump_points): Insert newline
1396	at the start of a new contour.
1397
13982016-01-28  Nikolaus Waxweiler  <madigens@gmail.com>
1399
1400	Remove unpatented hinter (3/3).
1401
1402	* include/freetype/config/ftoption.h
1403	(TT_CONFIG_OPTION_UNPATENTED_HINTING): Remove.
1404
1405	* include/freetype/internal/ftobjs.h (FT_Face_InternalRec): Remove
1406	`ignore_unpatented_hinter' field.
1407	Update users.
1408	(FT_DEBUG_HOOK_UNPATENTED_HINTING): Remove.
1409	Update users.
1410
1411	* include/freetype/internal/tttypes.h (TT_FaceRec): Remove
1412	`unpatented_hinting' field.
1413	Update users.
1414
1415	* src/base/ftpatent.c (_tt_check_patents_in_range,
1416	_tt_check_patents_in_table, _tt_face_check_patents): Remove.
1417	(FT_Face_CheckTrueTypePatents, FT_Face_SetUnpatentedHinting):
1418	Replace code with dummies.
1419
1420	* src/truetype/ttobjs.c (tt_face_init): Remove now defunct code.
1421	* src/truetype/ttobjs.h (TT_GraphicsState): Remove `both_x_axis'
1422	field.
1423
14242016-01-28  Nikolaus Waxweiler  <madigens@gmail.com>
1425
1426	Remove unpatented hinter (2/3).
1427
1428	* devel/ftoption.h (TT_CONFIG_OPTION_UNPATENTED_HINTING): Remove.
1429
14302016-01-28  Nikolaus Waxweiler  <madigens@gmail.com>
1431
1432	Remove unpatented hinter (1/3).
1433
1434	* src/truetype/ttinterp.c [TT_CONFIG_OPTION_UNPATENTED_HINTING]:
1435	Remove all code related to this macro.
1436
14372016-01-28  Werner Lemberg  <wl@gnu.org>
1438
1439	[autofit] Add blue-zone support for Kannada script.
1440
1441	This essentially moves the Kannada script from the `Indic' hinter to
1442	the `Latin' hinter.
1443
1444	* src/autofit/afblue.dat: Add blue zone data for Kannada.
1445
1446	* src/autofit/afblue.c, src/autofit/afblue.h: Regenerated.
1447
1448	* src/autofit/afscript.h: Add Kannada standard characters and move
1449	data out of AF_CONFIG_OPTION_INDIC block.
1450
1451	* src/autofit/afranges.c: Move Kannada data out of
1452	AF_CONFIG_OPTION_INDIC block.
1453
1454	* src/autofit/afstyles.h: Update Kannada data; in particular, use
1455	AF_WRITING_SYSTEM_LATIN.
1456
14572016-01-22  Alexei Podtelezhnikov  <apodtele@gmail.com>
1458
1459	Better access to 64-bit integers for C99 compilers.
1460
1461	* include/freetype/config/ftconfig.h [FT_LONG64]: Use
1462	__STDC_VERSION__ to define 64-bit integers.
1463	* builds/unix/ftconfig.in [FT_LONG64]: Ditto.
1464	* builds/vms/ftconfig.h [FT_LONG64]: Ditto.
1465
14662016-01-21  Werner Lemberg  <wl@gnu.org>
1467
1468	[gxvalid] Remove commented out code.
1469
1470	* src/gxvalid/gxvcommn.c (gxv_EntryTable_validate): Do it.
1471
14722016-01-20  Werner Lemberg  <wl@gnu.org>
1473
1474	[autofit] Complete last autofit commit.
1475
1476	Problem reported by Kostya Serebryany <kcc@google.com>.
1477
1478	* src/autofit/afshaper.c (af_shaper_get_coverage)
1479	[!FT_CONFIG_OPTION_USE_HARFBUZZ]: Update signature.
1480
14812016-01-20  Werner Lemberg  <wl@gnu.org>
1482
1483	Still handle `__FTERRORS_H__'.
1484
1485	We need this for backward compatibility.
1486
1487	Problem reported by John Emmas <johne53@tiscali.co.uk>.
1488
1489	* include/freetype/fterrors.h: Fix inclusion guard so that
1490	undefining either `FTERRORS_H_' or `__FTERRORS_H__' works as
1491	expected.
1492
14932016-01-19  Werner Lemberg  <wl@gnu.org>
1494
1495	[autofit] Fix handling of default script.
1496
1497	Patch taken from ttfautohint, commit
1498	071ae2c00e0d67f9d19418f4fade1c23d27dc185.
1499
1500	There were two bugs.
1501
1502	  - We now use non-standard script tags like `khms' for special
1503	    purposes.  However, HarfBuzz maps such tags to `DFLT', and
1504	    without this commit the associated lookups were incorrectly
1505	    assigned to the non-standard tags.
1506
1507	  - Let's assume we have a Bengali font, and the font's `DFLT'
1508	    script tag handles the necessary lookups for Bengali, too.
1509	    Without this commit, the `DFLT' lookups were assigned to
1510	    ttfautohint's default script (usually `latn') before the
1511	    standard lookups for Bengali were handled.
1512
1513	    We now have the following order while searching for covered
1514	    glyph indices.
1515
1516	      special features of scripts (e.g. `sups' for Cyrillic)
1517	      Unicode mappings of scripts
1518	      remaining features of scripts (especially important for Indic
1519	        scripts)
1520	      default features of default script
1521
1522	* src/autofit/afshaper.c, src/autofit/afshaper.h
1523	(af_shaper_get_coverage): Add boolean parameter to indicate default
1524	script.
1525	Update all callers.
1526
1527	* src/autofit/afglobal.c (af_face_globals_compute_style_coverage):
1528	Fix search order for coverages.
1529
15302016-01-19  Werner Lemberg  <wl@gnu.org>
1531
1532	Various minor clang fixes.
1533
1534	* src/autofit/afcjk.c (af_cjk_metrics_init_widths),
1535	src/autofit/aflatin.c (af_latin_metrics_init_widths): Initialize
1536	`ch'.
1537
1538	* src/base/ftcalc.c (FT_MulFix) [FT_LONG64]: Add cast.
1539
1540	* src/base/ftdbgmem.c (ft_mem_table_destroy): Add cast.
1541
1542	* src/base/fthash.c (hash_num_lookup): Add cast.
1543
1544	* src/base/fttrigon.c (ft_trig_downscale) [FT_LONG64]: Fix cast.
1545
1546	* src/gxvalid/gxvcommn.c (gxv_EntryTable_validate): Comment out
1547	redundant code.
1548
1549	* src/type1/t1driver.c (t1_get_ps_font_value) <PS_DICT_SUBR>: Add
1550	cast.
1551
1552	* src/type1/t1load.c (parse_subrs): Fix type of `count'.
1553
15542016-01-19  Derek B. Noonburg  <derekn@glyphandcog.com>
1555
1556	[truetype] Add another tricky font.
1557
1558	* src/truetype/ttobjs.c (TRICK_SFNT_IDS_NUM_FACES): Increase.
1559	(sfnt_id): Add variant of `DFKaiShu'.
1560
15612016-01-14  Alexei Podtelezhnikov  <apodtele@gmail.com>
1562
1563	[base] Empower `FT_Library_SetLcdFilterWeights'.
1564
1565	* src/base/ftlcdfil.c (FT_Library_SetLcdFilterWeights): Enable filter
1566	in addition to setting weights.
1567	(FT_Library_SetLcdFilter): Clean out FT_FORCE_LIGHT_LCD_FILTER and
1568	FT_FORCE_LEGACY_LCD_FILTER.
1569	* include/freetype/ftlcdfil.h: Documentation update.
1570
15712016-01-12  Werner Lemberg  <wl@gnu.org>
1572
1573	Don't use macro names that start with `_[A-Z]' [3/3].
1574
1575	Such macro names are reserved for both C and C++.
1576
1577	* src/cache/ftccache.h: s/_FTC_FACE_ID_HASH/FTC_FACE_ID_HASH/.
1578	Update all callers.
1579	(FTC_CACHE_LOOKUP_CMP): Replace `_XXX' with `XXX_'.
1580	* src/cache/ftcmru.c (FTC_MRULIST_LOOKUP_CMP): Ditto.
1581
15822016-01-12  Werner Lemberg  <wl@gnu.org>
1583
1584	Don't use macro names that start with `_[A-Z]' [2/3].
1585
1586	Such macro names are reserved for both C and C++.
1587
1588	* include/freetype/ftimage.h, src/raster/ftraster.c,
1589	src/smooth/ftgrays.c, src/smooth/ftgrays.h:
1590	s/_STANDALONE_/STANDALONE_/.
1591
15922016-01-12  Werner Lemberg  <wl@gnu.org>
1593
1594	Don't use macro names that start with `_[A-Z]' [1/3].
1595
1596	Such macro names are reserved for both C and C++.
1597
1598	* src/bdf/bdflib.c: Replace macros of the form `_BDF_XXX' with
1599	`BDF_XXX_'.
1600
16012016-01-12  Werner Lemberg  <wl@gnu.org>
1602
1603	Don't use macro names that contain `__' [2/2].
1604
1605	Such macro names are reserved for both C and C++.
1606
1607	* src/cache/*: s/__/_/.
1608
16092016-01-12  Werner Lemberg  <wl@gnu.org>
1610
1611	Don't use macro names that contain `__' [1/2].
1612
1613	Such macro names are reserved for both C and C++.
1614
1615	* */*: Replace macros of the form `__XXX_H__' with `XXX_H_'.
1616
16172016-01-10  Jered Gray  <jegray@google.com>
1618
1619	[cff] Fix usage of `|' operator.
1620
1621	* src/cff/cf2intrp.c (cf2_interpT2CharString) [cf2_cmdEXTENDEDNMBR,
1622	default]: `|' is not guaranteed to be processed from left to right
1623	by the compiler.  However, the code repeatedly calls
1624	`cf2_buf_readByte' to get the arguments to `|' ...  Fix this.
1625
16262015-12-25  Werner Lemberg  <wl@gnu.org>
1627
1628	[autofit] Make top-to-bottom hinting work in latin auto-hinter.
1629
1630	This improves rendering of scripts like Bengali or Devanagari.
1631
1632	* src/autofit/afhints.c (af_axis_hints_new_edge): Add parameter to
1633	pass top-to-bottom hinting flag.  This makes the function sort edges
1634	in descending vertical position.
1635
1636	* src/autofit/afhints.c: Updated.
1637
1638	* src/autofit/aflatin.c (af_latin_hints_compute_edges,
1639	af_latin_hint_edges): Use `top_to_bottom_hinting' flag.
1640
1641	* src/autofit/afcjk.c (af_cjk_hints_compute_edges),
1642	src/autofit/aflatin2.c (af_latin2_hints_compute_edges): Updated.
1643
16442015-12-24  Werner Lemberg  <wl@gnu.org>
1645
1646	[autofit] Add hinting direction to `AF_ScriptClassRec'.
1647
1648	Still unused.
1649
1650	* src/autofit/afglobal.c (SCRIPT): Handle hinting direction.
1651
1652	* src/autofit/aftypes.h (AF_ScriptClassRec): Add
1653	`top_to_bottom_hinting' field.
1654	(AF_HINTING_BOTTOM_TO_TOP, AF_HINTING_TOP_TO_BOTTOM): New macros.
1655	(AF_DEFINE_SCRIPT_CLASS): Updated.
1656
16572015-12-23  Werner Lemberg  <wl@gnu.org>
1658
1659	[autofit] Start implementing hinting direction (up/down, down/up).
1660
1661	Right now, it does nothing.
1662
1663	* src/autofit/afscript.h: Add another parameter to `SCRIPT',
1664	specifying hinting direction.
1665
1666	* src/autofit/afglobal.c, src/autofit/afglobal.h,
1667	src/autofit/afpic.c, src/autofit/afranges.h, src/autofit/afshaper.c,
1668	src/autofit/aftypes.h: Extend `SCRIPT' definitions.
1669
16702015-12-22  Werner Lemberg  <wl@gnu.org>
1671
1672	* src/type1/t1load.c (parse_subrs): Fix memory leak (#46744).
1673
16742015-12-22  Werner Lemberg  <wl@gnu.org>
1675
1676	[base] Make hash interface symmetric.
1677
1678	Use `num' and `str' infixes everywhere.
1679
1680	* src/base/fthash.c (ft_hash_init): Renamed to...
1681	(hash_init): ... This.
1682	(ft_hash_str_init, ft_hash_num_init): New functions.
1683	(ft_hash_free): Renamed to...
1684	(ft_hash_str_free): ... This.
1685
1686	* include/freetype/internal/fthash.h: Updated.
1687
1688	* src/bdf/bdflib.c, src/type1/t1load.c, src/type1/t1objs.c: Updated.
1689
16902015-12-21  Werner Lemberg  <wl@gnu.org>
1691
1692	[type1] Avoid shift of negative numbers (#46732).
1693
1694	* src/type1/t1load.c (parse_subrs): Do it.
1695
16962015-12-20  Werner Lemberg  <wl@gnu.org>
1697
1698	[type1, psaux] Handle large values of num_subrs correctly (#46692).
1699
1700	We now use a hash to map from subr indices to array elements holding
1701	the subroutines, if necessary.
1702
1703	* include/freetype/internal/t1types.h: Include FT_INTERNAL_HASH_H.
1704	(T1_FontRec): Add `subrs_hash' field.
1705
1706	* include/freetype/internal/psaux.h: Include FT_INTERNAL_HASH_H.
1707	(T1_DecoderRec): Add `subrs_hash' field.
1708
1709	* src/type1/t1load.h (T1_LoaderRec): Add `subrs_hash' field.
1710
1711	* src/type1/t1driver.c: Include FT_INTERNAL_HASH_H.
1712	(t1_ps_get_font_value) [PS_DICT_SUBR]: Look up hash if necessary.
1713
1714	* src/type1/t1load.c: Include FT_INTERNAL_HASH_H.
1715	(parse_subrs): Use hash for subr indices that exceed the allocated
1716	number of subr slots.
1717	(t1_init_loader): Remove unnecessary code.
1718	(t1_done_loader, T1_Open_Face): Updated.
1719
1720	* src/type1/t1gload.c (T1_Compute_Max_Advance, T1_Get_Advances,
1721	T1_Load_Glyph): Updated.
1722
1723	* src/type1/t1objs.c (T1_Face_Done): Updated.
1724
1725	* src/psaux/t1decode.c: Include FT_INTERNAL_HASH_H.
1726	(t1_decoder_parse_charstrings) [op_callsubr]: Look up hash if
1727	necessary.
1728
1729	* src/cid/cidgload.c (cid_load_glyph): Updated.
1730
17312015-12-20  Werner Lemberg  <wl@gnu.org>
1732
1733	[base] Thinko: Remove free function pointer.
1734
1735	We don't copy keys or values while hashing.
1736
1737	* include/freetype/internal/fthash.h (FT_Hash_FreeFunc): Removed.
1738	(FT_HashRec): Remove `free' field.
1739
1740	* src/base/fthash.c (hash_str_free): Removed.
1741	(ft_hash_init, ft_hash_free): Updated.
1742
17432015-12-20  Werner Lemberg  <wl@gnu.org>
1744
1745	[base, bdf] Don't expose `FT_Hashnode' in hash functions.
1746
1747	* src/base/fthash.c (hash_lookup, ft_hash_str_lookup,
1748	ft_hash_num_lookup): Return pointer to `size_t' instead of
1749	`FT_Hashnode'.
1750
1751	* include/freetype/internal/fthash.h: Updated.
1752
1753	* src/bdf/bdflib.c (bdf_get_property, _bdf_add_property,
1754	bdf_get_font_property): Updated.
1755
17562015-12-20  Werner Lemberg  <wl@gnu.org>
1757
1758	[base, bdf] Add number hashing.
1759
1760	* src/base/fthash.c (hash_num_lookup, hash_num_compare): New
1761	functions.
1762	(ft_hash_init): Add argument to select between number and string
1763	hashing.
1764	(ft_hash_num_insert, ft_hash_num_lookup): New functions.
1765
1766	* include/freetype/internal/fthash.h: Updated.
1767
1768	* src/bdf/bdflib.c (_bdf_parse_start): Updated.
1769
17702015-12-20  Werner Lemberg  <wl@gnu.org>
1771
1772	[base] Introduce hash lookup, compare, and free function pointers.
1773
1774	* include/freetype/internal/fthash.c (FT_Hash_LookupFunc,
1775	FT_Hash_CompareFunc, FT_Hash_FreeFunc): New typedefs.
1776	(FT_HashRec): Add `lookup', `compare', and `free' fields.
1777
1778	* src/base/fthash.c (hash_str_lookup, hash_str_compare,
1779	hash_str_free): New functions.
1780	(ft_hash_init): Set function pointers.
1781	(hash_bucket, ft_hash_free): Use them.
1782
17832015-12-20  Werner Lemberg  <wl@gnu.org>
1784
1785	[base, bdf] Use a union as a hash key.
1786
1787	We want to support both an integer and a string key later on.
1788
1789	* include/freetype/internal/fthash.h (FT_Hashkey): New union.
1790	(FT_HashnodeRec): Updated.
1791	(ft_hash_insert, ft_hash_lookup): Renamed to ...
1792	(ft_hash_str_insert, ft_hash_str_lookup): ... this.
1793
1794	* src/base/fthash.c (hash_bucket): Updated.
1795	(ft_hash_insert, ft_hash_lookup): Renamed to ...
1796	(hash_insert, hash_lookup): ... this.
1797	(ft_hash_str_insert, ft_hash_str_lookup): New wrapper functions.
1798
1799	* src/bdf/bdflib.c: Updated.
1800
18012015-12-19  Werner Lemberg  <wl@gnu.org>
1802
1803	[bdf] Use new hash functions.
1804
1805	* src/bdf/bdf.h: Include FT_INTERNAL_HASH_H.
1806	(hashnode, hashtable): Removed.
1807	(bdf_font_t): Use `FT_HashRec' type for `proptbl'.
1808
1809	* src/bdf/bdflib.c: Remove all hash functions.
1810	Update code for new hash structure and function names.
1811
18122015-12-19  Werner Lemberg  <wl@gnu.org>
1813
1814	[bdf, base] Lift hash functions from bdf driver to base module.
1815
1816	* src/base/fthash.c, include/freetype/internal/fthash.h: New files,
1817	containing (massaged) code from `bdflib.c' and `bdf.h'.
1818
1819	* include/freetype/internal/internal.h (FT_INTERNAL_HASH_H): New
1820	macro.
1821
1822	* src/base/ftbase.c: Include `fthash.c'.
1823
1824	* src/base/Jamfile (_sources): Add `fthash'.
1825
1826	* src/base/rules.mk (BASE_SRC): Add `fthash.c'.
1827
1828	* docs/LICENSE.TXT: Updated.
1829
18302015-12-15  Werner Lemberg  <wl@gnu.org>
1831
1832	[autofit] Add blue-zone support for Bengali script.
1833
1834	This essentially moves the Bengali script from the `Indic' hinter to
1835	the `Latin' hinter.
1836
1837	* src/autofit/afblue.dat: Add blue zone data for Bengali.
1838
1839	* src/autofit/afblue.c, src/autofit/afblue.h: Regenerated.
1840
1841	* src/autofit/afscript.h: Add Bengali standard characters and move
1842	data out of AF_CONFIG_OPTION_INDIC block.
1843
1844	* src/autofit/afranges.c: Move Bengali data out of
1845	AF_CONFIG_OPTION_INDIC block.
1846
1847	* src/autofit/afstyles.h: Update Bengali data; in particular, use
1848	AF_WRITING_SYSTEM_LATIN.
1849
18502015-12-14  Ben Wagner  <bungeman@gmail.com>
1851
1852	[bdf] Remove dead code (#46625).
1853
1854	The BDF specification only allows decimal numbers, no octal or
1855	hexadecimal decoding is needed.
1856
1857	* src/bdf/bdflib.c (_bdf_atoul, _bdf_atol, _bdf_atous,
1858	_bdf_atos): Remove unused code and parameters.
1859	Update all callers.
1860	(odigits): Remove.
1861
18622015-12-14  Werner Lemberg  <wl@gnu.org>
1863
1864	[base] Fix calls to `FT_Stream_Seek'.
1865
1866	* src/base/ftobjs.c (Mac_Read_sfnt_Resource, FT_Open_Face): Set
1867	`error'.
1868
18692015-12-14  Ben Wagner  <bungeman@gmail.com>
1870
1871	[base] Check error when seeking to data supplied offset (#46635).
1872
1873	* src/base/ftobjs.c (open_face_PS_from_sfnt_stream):
1874	`ft_lookup_PS_in_sfnt_stream' returns offset and length from
1875	user supplied data.  Use of this these values must be checked.
1876
18772015-12-13  Werner Lemberg  <wl@gnu.org>
1878
1879	[autofit] Add support for Myanmar script.
1880
1881	* src/autofit/afblue.dat: Add blue zone data for Myanmar.
1882
1883	* src/autofit/afblue.c, src/autofit/afblue.h: Regenerated.
1884
1885	* src/autofit/afscript.h: Add Myanmar standard characters.
1886
1887	* src/autofit/afranges.c: Add Myanmar data.
1888
1889	* src/autofit/afstyles.h: Add Myanmar data.
1890
18912015-12-12  Werner Lemberg  <wl@gnu.org>
1892
1893	* src/autofit/aflatin.c (af_latin_metrics_init_blues): Minor.
1894
18952015-12-12  Werner Lemberg  <wl@gnu.org>
1896
1897	* src/autofit/afscript.h: Avoid potential crash.
1898
18992015-12-10  Werner Lemberg  <wl@gnu.org>
1900
1901	[autofit] Restore OpenType feature check.
1902
1903	This was removed while rewriting the HarfBuzz interface.
1904
1905	* src/autofit/afglobal.h (AF_FaceGlobalsRec): Add `hb_buf' field to
1906	hold internal HarfBuzz buffer, needed for feature comparison.
1907
1908	* src/autofit/afglobal.c (af_face_globals_new,
1909	af_face_globals_free): Initialize and destroy `hb_buf'.
1910
1911	* src/autofit/afshaper.c (af_shaper_get_cluster): Compare character
1912	(cluster) with and without applied feature.
1913
1914	* src/autofit/aflatin.c (af_latin_metrics_init_blues): Fix tracing
1915	message.
1916
19172015-12-10  Werner Lemberg  <wl@gnu.org>
1918
1919	[autofit] Remove redundant code.
1920
1921	* src/autofit/aflatin.c (af_latin_metrics_init_widths): Do it.
1922
19232015-12-09  Werner Lemberg  <wl@gnu.org>
1924
1925	[autofit] Thinko.
1926
1927	* src/autofit/aflatin.c (af_latin_metrics_init_blues): Don't count
1928	empty blue zones (bug introduced 2015-12-06).
1929
19302015-12-09  Werner Lemberg  <wl@gnu.org>
1931
1932	[autofit] Introduce subscript top blue zones.
1933
1934	This feature is mainly for Khmer: The idea is to avoid a clash
1935	between the top of subscript glyphs and the bottom of normal
1936	baseline glyphs.
1937
1938	This only works for character clusters mapped to multiple glyphs.
1939
1940	* src/autofit/afblue.dat: Add subscript top blue zone for Khmer.
1941
1942	* src/autofit/afblue.hin (AF_BLUE_PROPERTY_LATIN_SUB_TOP): New
1943	macro.
1944
1945	* src/autofit/afblue.c, src/autofit/afblue.h: Regenerated.
1946
1947	* src/autofit/aflatin.h (AF_LATIN_IS_SUB_TOP_BLUE,
1948	AF_LATIN_BLUE_SUB_TOP): New macros.
1949
1950	* src/autofit/aflatin.c (af_latin_metrics_init_blues): Handle new
1951	blue zone property.
1952	Update tracing messages.
1953	(af_latin_metrics_scale_dim): Handle new blue zone property.
1954	(af_latin_hints_compute_blue_edges): Updated.
1955
19562015-12-09  Werner Lemberg  <wl@gnu.org>
1957
1958	[autofit] Fix tracing message.
1959
1960	* src/autofit/aflatin.c (af_latin_metrics_scale_dim): Display
1961	inactive blue zones also.
1962
19632015-12-06  Werner Lemberg  <wl@gnu.org>
1964
1965	* src/autofit/afblue.dat: Add more Khmer clusters.
1966
1967	Some fonts have incorrect ligatures; we need more samples to get a
1968	good mean value.
1969
1970	* src/autofit/afblue.c, src/autofit/afblue.h: Regenerated.
1971
19722015-12-06  Werner Lemberg  <wl@gnu.org>
1973
1974	[autofit] Typos.
1975
1976	* src/autofit/afshaper.c (af_shaper_buf_create, af_shaper_get_elem)
1977	[!FT_CONFIG_OPTION_USE_HARFBUZZ]: Make it compile.
1978
19792015-12-06  Werner Lemberg  <wl@gnu.org>
1980
1981	[autofit] Add support for Khmer script.
1982
1983	We split Khmer into two auto-hinter scripts: `Khmer' (`khmr') and
1984	`Khmer symbols' (`khms', U+19E0-U+19FF).
1985
1986	* src/autofit/afblue.dat: Add blue zone data for Khmer.
1987
1988	* src/autofit/afblue.c, src/autofit/afblue.h: Regenerated.
1989
1990	* src/autofit/afscript.h: Add Khmer standard characters.
1991
1992	* src/autofit/afranges.c: Add Khmer data.
1993
1994	* src/autofit/afstyles.h: Add Khmer data.
1995
19962015-12-06  Werner Lemberg  <wl@gnu.org>
1997
1998	[autofit] Rewrite HarfBuzz interface to support character clusters.
1999
2000	Scripts like Khmer have blue zones that can't be directly
2001	represented by Unicode characters.  Instead, it is necessary to let
2002	HarfBuzz convert character clusters into proper glyph representation
2003	forms, then deriving the blue zone information from the resulting
2004	glyphs.
2005
2006	* src/autofit/hbshim.c, src/autofit/hbshim.h: Replaced by...
2007	* src/autofit/afshaper.c, src/autofit/afshaper.h: ... these two new
2008	files, providing a new API to access HarfBuzz.
2009
2010	The new API manages a HarfBuzz buffer with `af_shaper_buf_create'
2011	and `af_shaper_buf_destroy'.  The buffer receives a UTF8 encoded
2012	string with function `af_shaper_get_cluster', and the resulting
2013	glyph data (indices, advance widths, vertical offsets) can be
2014	iteratively accessed with function `af_shaper_get_elem'.
2015
2016	* src/autofit/afcjk.c (af_cjk_metrics_init_widths,
2017	af_cjk_metrics_init_blues, af_cjk_metrics_check_digits): Updated.
2018
2019	* src/autofit/aflatin.c (af_latin_metrics_init_widths,
2020	af_latin_metrics_init_blues, af_latin_metrics_check_digits):
2021	Updated.
2022
2023	* include/freetype/internal/fttrace.h: s/afharfbuzz/afshaper/.
2024
2025	* src/autofit/afglobal.c: s/hbshim.h/afshaper.h/.
2026	(af_face_globals_compute_style_coverage): Updated.
2027
2028	* src/autofit/afglobal.h: s/hbshim.h/afshaper.h/.
2029
2030	* src/autofit/autofit.c: s/hbshim.c/afshaper.c/.
2031
2032	* src/autofit/Jamfile, src/autofit/rules.mk (AUTOF_DRV_SRC):
2033	Updated.
2034
20352015-12-06  Werner Lemberg  <wl@gnu.org>
2036
2037	[autofit] Prepare forthcoming changes.
2038
2039	This makes it easier to control the commits.
2040
2041	* src/autofit/aflatin.c (af_latin_metrics_init_blues): Add dummy
2042	loop.  No functional change.
2043
20442015-12-06  Werner Lemberg  <wl@gnu.org>
2045
2046	[autofit] Use string of standard characters.
2047
2048	This is more flexible; additionally, it would allow character
2049	clusters.
2050
2051	* src/autofit/aftypes.h (SCRIPT, AF_DEFINE_SCRIPT_CLASS): Updated.
2052	(AF_ScriptClassRec): Replace `standard_char[123]' with
2053	`standard_charstring'.
2054
2055	* src/autofit/afscript.h: Replace last three character arguments
2056	of the `SCRIPT' calls with a string parameter, holding the standard
2057	characters (in UTF-8 encoding) separated with spaces.
2058
2059	* src/autofit/afglobal.c, src/autofit/afglobal.h,
2060	src/autofit/afpic.c, src/autofit/afranges.c, src/autofit/hbshim.c
2061	(SCRIPT): Updated.
2062
2063	* src/autofit/afcjk.c (af_cjk_metrics_init_widths),
2064	src/autofit/aflatin.c (af_latin_metrics_init_widths): Updated.
2065
20662015-12-05  Werner Lemberg  <wl@gnu.org>
2067
2068	* src/autofit/afblue.dat: Separate blue zone characters with spaces.
2069
2070	Another preparation for character cluster support.
2071
2072	* src/autofit/afblue.c, src/autofit.afblue.h: Regenerated.
2073
20742015-12-05  Werner Lemberg  <wl@gnu.org>
2075
2076	* src/tools/afblue.pl (convert_ascii_chars): Don't ignore spaces.
2077
2078	Instead, reduce multiple spaces to a single one.  We need this later
2079	for supporting character clusters in `afblue.dat'.
2080
20812015-12-05  Werner Lemberg  <wl@gnu.org>
2082
2083	* src/autofit/afblue.hin (GET_UTF8_CHAR): Use `do...while(0)'.
2084
2085	* src/autofit/afblue.h: Regenerated.
2086
20872015-12-05  Werner Lemberg  <wl@gnu.org>
2088
2089	* src/autofit/afwarp.c: s/INT_MIN/FT_INT_MIN/.
2090
20912015-12-03  Werner Lemberg  <wl@gnu.org>
2092
2093	* builds/unix/install.mk (install): Remove stale `ft2build.h'.
2094
20952015-12-01  Werner Lemberg  <wl@gnu.org>
2096
2097	[type1] Avoid dangling pointer (#46572).
2098
2099	* src/type1/t1afm.c (T1_Read_Metrics): Properly reset
2100	`face->afm_data'.
2101
21022015-11-28  Alexei Podtelezhnikov  <apodtele@gmail.com>
2103
2104	* include/freetype/ftlcdfil.h: Documentation tweak.
2105
21062015-11-28  Werner Lemberg  <wl@gnu.org>
2107
2108	* Version 2.6.2 released.
2109	=========================
2110
2111
2112	Tag sources with `VER-2-6-2'.
2113
2114	* docs/VERSION.DLL: Update documentation and bump version number to
2115	2.6.2.
2116
2117	* README, Jamfile (RefDoc), builds/windows/vc2005/freetype.vcproj,
2118	builds/windows/vc2005/index.html,
2119	builds/windows/vc2008/freetype.vcproj,
2120	builds/windows/vc2008/index.html,
2121	builds/windows/vc2010/freetype.vcxproj,
2122	builds/windows/vc2010/index.html,
2123	builds/windows/visualc/freetype.dsp,
2124	builds/windows/visualc/freetype.vcproj,
2125	builds/windows/visualc/index.html,
2126	builds/windows/visualce/freetype.dsp,
2127	builds/windows/visualce/freetype.vcproj,
2128	builds/windows/visualce/index.html,
2129	builds/wince/vc2005-ce/freetype.vcproj,
2130	builds/wince/vc2005-ce/index.html,
2131	builds/wince/vc2008-ce/freetype.vcproj,
2132	builds/wince/vc2008-ce/index.html: s/2.6.1/2.6.2/, s/261/262/.
2133
2134	* include/freetype/freetype.h (FREETYPE_PATCH): Set to 2.
2135
2136	* builds/unix/configure.raw (version_info): Set to 18:2:12.
2137	* CMakeLists.txt (VERSION_PATCH): Set to 2.
2138
2139	* docs/CHANGES: Updated.
2140
21412015-11-28  Werner Lemberg  <wl@gnu.org>
2142
2143	Fix C++ compilation.
2144
2145	* src/autofit/afloader.c: Include FT_INTERNAL_CALC_H.
2146
2147	* src/truetype/ttgload.c (load_truetype_glyph): Pacify compiler.
2148
21492015-11-28  Nikolaus Waxweiler  <madigens@gmail.com>
2150
2151	Change default LCD filter to be normalized and color-balanced.
2152
2153	* src/base/ftlcdfil.c (FT_Library_SetLcdFilter): Update
2154	`default_filter'.
2155
21562015-11-28  Werner Lemberg  <wl@gnu.org>
2157
2158	[docmaker] Allow references to section names.
2159
2160	In the reference, we show the section's title enclosed in single
2161	quotes.
2162
2163	* src/tools/docmaker/formatter.py (Formatter::__init__): Collect
2164	section names as identifiers.
2165
2166	* src/tools/docmaker/tohtml.py (section_title_header): Split into...
2167	(section_title_header1, section_title_header2): ... these two
2168	strings.
2169	(HtmlFormatter::make_block_url, make_html_word, html_source_quote):
2170	Handle sections.
2171	(HtmlFormatter::section_enter): Updated to add `id' HTML attribute.
2172
21732015-11-27  Tamas Kenez  <tamas.kenez@adasworks.com>
2174
2175	[cmake] Add script to test the config module.
2176
2177	* builds/cmake/testbuild.sh: New file.
2178
21792015-11-27  Tamas Kenez  <tamas.kenez@adasworks.com>
2180
2181	* CMakeLists.txt: Create `freetype-config.cmake' config module.
2182
21832015-11-27  Tamas Kenez  <tamas.kenez@adasworks.com>
2184
2185	* CMakeLists.txt: Set CMAKE_DEBUG_POSTFIX to `d'.
2186
21872015-11-27  Tamas Kenez  <tamas.kenez@adasworks.com>
2188
2189	[cmake] Add better control of library dependencies.
2190
2191	* CMakeLists.txt: Add `WITH_*' variables to force/auto/omit
2192	ZLIB/BZip2/PNG/HarfBuzz.
2193
21942015-11-27  Tamas Kenez  <tamas.kenez@adasworks.com>
2195
2196	[cmake] Make `FindHarfBuzz' observe the REQUIRED option.
2197
2198	* builds/cmake/FindHarfBuzz.cmake: Implement it.
2199
22002015-11-27  Werner Lemberg  <wl@gnu.org>
2201
2202	[cmake] Collect files specific to cmake in `builds/cmake'.
2203
2204	* builds/FindHarfBuzz.cmake: Move to ...
2205	* builds/cmake/FindHarfBuzz.cmake: ... this place.
2206
2207	* CMakeLists.txt (CMAKE_MODULE_PATH): Updated.
2208
22092015-11-27  Alexander Bock  <alexander.j.bock@nasa.gov>
2210
2211	CMakeLists.txt: Honour new command line flag `FREETYPE_NO_DIST'.
2212
22132015-11-26  Werner Lemberg  <wl@gnu.org>
2214
2215	[docmaker] Allow `foo[bar]' as identifier.
2216
2217	We need this to handle equally named properties in different
2218	modules.
2219
2220	* src/tools/docmaker/content.py (re_identifier),
2221	src/tools/docmaker/sources.py (re_crossref): Allow `foo[bar]'.
2222
2223	* src/tools/docmaker/tohtml.py (HtmlFormatter::make_html_word,
2224	HtmlFormatter::index_exit, HtmlFormatter::section_enter,
2225	HtmlFormatter::block_enter): Handle `foo[bar]'.
2226
22272015-11-25  Werner Lemberg  <wl@gnu.org>
2228
2229	* src/bdf/bdflib.c (bdf_load_font): Fix small memory leak (#46480).
2230
2231	(_bdf_parse_glyphs): Always reset `p->glyph_name' after moving its
2232	contents.
2233
22342015-11-21  Werner Lemberg  <wl@gnu.org>
2235
2236	* include/freetype/internal/ftcalc.h: Don't use `register' keyword.
2237
2238	This fixes compiler warnings.
2239
2240	Reported by Behdad.
2241
22422015-11-20  Werner Lemberg  <wl@gnu.org>
2243
2244	Add `FT_LCD_FILTER_LEGACY1' enum value.
2245
2246	This does the same as `FT_LCD_FILTER_LEGACY'.
2247
2248	See
2249
2250	  https://bugs.freedesktop.org/show_bug.cgi?id=92981
2251
2252	for the reasoning.
2253
2254	* include/freetype/ftlcdfil.h (FT_LcdFilter): New value
2255	`FT_LCD_FILTER_LEGACY1'.
2256
2257	* src/base/ftlcdfil.c (FT_Library_SetLcdFilter): Use it.
2258
22592015-11-15  Werner Lemberg  <wl@gnu.org>
2260
2261	* src/autofit/afhints.c (af_get_segment_index): Fix it.
2262
2263	The old code was too simple, returning invalid values in most cases
2264	where a segment crosses the contour start.
2265
22662015-11-15  Werner Lemberg  <wl@gnu.org>
2267
2268	* src/bdf/bdflib.c (bdf_load_font): Fix small memory leak (#46439).
2269
22702015-11-11  Werner Lemberg  <wl@gnu.org>
2271
2272	[cff, autofit] Switch off stem darkening by default.
2273
2274	* src/autofit/afmodule.c (af_autofitter_init), src/cff/cffobjs.c
2275	(cff_driver_init): Do it.
2276
22772015-11-10  Jan Alexander Steffens (heftig)  <jan.steffens@gmail.com>
2278
2279	Allow native CFF hinter in FT_RENDER_MODE_LIGHT.
2280
2281	Both the native CFF hinter and the auto-hinter now have a very
2282	similar rendering style.
2283
2284	* include/freetype/freetype.h: Mention that FT_LOAD_TARGET_LIGHT no
2285	longer implies FT_LOAD_FORCE_AUTOHINT.
2286
2287	* include/freetype/ftmodapi.h (FT_MODULE_DRIVER_HINTS_LIGHTLY): New
2288	macro.
2289
2290	* include/freetype/internal/ftobjs.h (FT_DRIVER_HINTS_LIGHTLY): New
2291	macro.
2292
2293	* src/cff/cffdrivr.c (cff_driver_class): Use it.
2294
2295	* src/base/ftobjs.c (FT_Load_Glyph): Update auto-hinter selection
2296	logic.
2297
22982015-11-09  Werner Lemberg  <wl@gnu.org>
2299
2300	* src/cid/cidload.c (cid_face_open): Fix GDBytes guard (#46408).
2301
23022015-11-09  Werner Lemberg  <wl@gnu.org>
2303
2304	[truetype] Remove integer to pointer conversion compiler warning.
2305
2306	Problem reported by Alexei.
2307
2308	* src/truetype/ttgload.c (load_truetype_glyph): Use a solution found
2309	in the glib library to fix the issue.
2310
23112015-11-08  Behdad Esfahbod  <behdad@behdad.org>
2312
2313	[sfnt] Accept version 3 of `EBLC' and `CBLC' tables also.
2314
2315	* src/sfnt/ttsbit.c (tt_face_load_sbit): Implement it.
2316
23172015-11-08  Philipp Knechtges  <philipp-dev@knechtges.com>
2318
2319	[autofit] Don't distort (latin) glyphs too much (#46195).
2320
2321	* src/autofit/aflatin.h (AF_LatinBlueRec): Add `ascender' and
2322	`descender' fields.
2323
2324	* src/autofit/aflatin.c (af_latin_metrics_init_blues): Collect
2325	ascender and descender data for blue zones.
2326	(af_latin_metrics_scale_dim): Reject vertical scaling values that
2327	change the result by more than two pixels.
2328
23292015-11-05  Werner Lemberg  <wl@gnu.org>
2330
2331	[sfnt] Ignore embedded bitmaps with zero size (#46379).
2332
2333	* src/sfnt/ttsbit.c (tt_sbit_decoder_load_bit_aligned): Implement
2334	it.
2335
23362015-11-04  Werner Lemberg  <wl@gnu.org>
2337
2338	[truetype] Catch infinite recursion in subglyphs (#46372).
2339
2340	* include/freetype/internal/tttypes.h (TT_LoaderRec): New field
2341	`composites'.
2342
2343	* src/truetype/ttgload.c: Include FT_LIST_H.
2344	(load_truetype_glyph): Add composite subglyph index to a list;
2345	abort if index is already in list.
2346	(tt_loader_init): Updated.
2347	(tt_loader_done): New function.
2348	(TT_Load_Glyph): Call `tt_loader_done'.
2349
23502015-11-04  Werner Lemberg  <wl@gnu.org>
2351
2352	[truetype] Better tracing of composite glyphs.
2353
2354	* src/truetype/ttgload.c (TT_Load_Composite_Glyph,
2355	load_truetype_glyph): Implement it.
2356
23572015-11-03  Werner Lemberg  <wl@gnu.org>
2358
2359	[sfnt] Protect against zero-size bitmaps (#46345).
2360
2361	* src/sfnt/ttsbit.c (tt_sbit_decoder_load_bitmap): Check
2362	`glyph_size'.
2363
23642015-11-02  Nikolaus Waxweiler  <madigens@gmail.com>
2365
2366	* src/autofit/afloader.c (af_loader_load_g): Implement emboldening.
2367
23682015-11-02  Nikolaus Waxweiler  <madigens@gmail.com>
2369
2370	[autofit] Implement darkening computation function.
2371
2372	This is a crude adaption of the original `cf2_computeDarkening'
2373	function.
2374
2375	* src/autofit/afloader.c (af_intToFixed, af_fixedToInt,
2376	af_floatToFixed): New macros, taken from `cf2fixed.h'.
2377	(af_loader_compute_darkening): New function.
2378	* src/autofit/afloader.h: Updated.
2379
23802015-11-02  Nikolaus Waxweiler  <madigens@gmail.com>
2381
2382	[autofit] Add functions to get standard widths for writing systems.
2383
2384	We need the computed standard horizontal and vertical widths for the
2385	emboldening calculation.  This method provides a convenient way to
2386	extract it from writing-system-specific metrics structures, which
2387	all script definitions must implement.
2388
2389	* src/autofit/aftypes.h (AF_WritingSystem_GetStdWidthsFunc): New
2390	function type.
2391	(AF_WritingSystemClassRec): New member `style_metrics_getstdw'.
2392	(AF_DEFINE_WRITING_SYSTEM_CLASS): Updated.
2393
2394	* src/autofit/afcjk.c (af_cjk_get_standard_width): New function.
2395	(af_cjk_writing_system_class): Updated.
2396	* src/autofit/afdummy.c (af_dummy_writing_system_class): Updated.
2397	* src/autofit/afindic.c (af_cjk_get_standard_width): New function.
2398	(af_indic_writing_system_class): Updated.
2399	* src/autofit/aflatin.c (af_latin_get_standard_width): New function.
2400	(af_indic_writing_system_class): Updated.
2401	* src/autofit/aflatin.c (af_latin_get_standard_width): New function.
2402	(af_indic_writing_system_class): Updated.
2403
24042015-11-02  Nikolaus Waxweiler  <madigens@gmail.com>
2405
2406	[autofit] Extend `AF_FaceGlobalsRec' to hold emboldening data.
2407
2408	* src/autofit/afglobal.h (AF_FaceGlobalsRec): Add fields.
2409
2410	* src/autofit/afglobal.c (af_face_globals_new): Initialize new
2411	fields.
2412	(af_face_globals_free): Reset new fields.
2413
24142015-11-02  Nikolaus Waxweiler  <madigens@gmail.com>
2415
2416	[autofit] Add stem-darkening properties.
2417
2418	Actual code follows in a later commit.
2419
2420	* include/freetype/ftautoh.h: Document `no-stem-darkening' and
2421	`darkening-parameters'.
2422
2423	* src/autofit/afmodule.h: New fields `no_stem_darkening' and
2424	`darken_params'.
2425
2426	* src/autofit/afmodule.c (af_property_set, af_property_get):
2427	Handle them.
2428	(af_autofitter_init): Initialize them.
2429
24302015-11-02  Ben Wagner  <bungeman@gmail.com>
2431
2432	[ftfuzzer] Add support for multiple files (patch #8779).
2433
2434	Currently, libFuzzer only supports mutation of a single file.  We
2435	circumvent this problem by using an uncompressed tar archive as
2436	multiple-file input for the fuzzer.
2437
2438	This patch enables tests of `FT_Attach_Stream' and AFM/PFM parsing;
2439	a constructed tarball should contain a font file as the first
2440	element, and files to be attached as further elements.
2441
2442	* src/tools/ftfuzzer/ftfuzzer.cc: Include libarchive headers.
2443	(archive_read_entry_data, parse_data): New functions.
2444	(LLVMFuzzerTestOneInput): Updated.
2445
2446	* src/tools/ftfuzzer/ftmutator.cc: New file, providing a custom
2447	mutator for libFuzzer that can mutate tarballs in a sensible way.
2448
24492015-10-31  Werner Lemberg  <wl@gnu.org>
2450
2451	[sfnt] Fix cmap 14 validation (#46346).
2452
2453	* src/sfnt/ttcmap.c (tt_cmap14_validate): Check limit before
2454	accessing `numRanges' and `numMappings'.
2455	Fix size check for non-default UVS table.
2456
24572015-10-31  Werner Lemberg  <wl@gnu.org>
2458
2459	[sfnt] Handle infinite recursion in bitmap strikes (#46344).
2460
2461	* src/sfnt/ttsbit.c (TT_SBitDecoder_LoadFunc,
2462	tt_sbit_decoder_load_bitmap, tt_sbit_decoder_load_byte_aligned,
2463	tt_sbit_decoder_load_bit_aligned, tt_sbit_decoder_load_png): Add
2464	argument for recursion depth.
2465	(tt_sbit_decoder_load_compound): Add argument for recursion depth.
2466	Increase recursion counter for recursive call.
2467	(tt_sbit_decoder_load_image): Add argument for recursion depth.
2468	Check recurse depth.
2469	(tt_face_load_sbit_image): Updated.
2470
24712015-10-29  Werner Lemberg  <wl@gnu.org>
2472
2473	* src/autofit/afhints.c (af_glyph_hints_dump_points): Minor.
2474
24752015-10-29  Werner Lemberg  <wl@gnu.org>
2476
2477	* CMakeLists.txt: Remove code to set MSVC's /FD compiler switch.
2478
2479	Problem reported by David Capello <davidcapello@gmail.com>; see
2480
2481	  https://lists.nongnu.org/archive/html/freetype-devel/2015-10/msg00108.html
2482
2483	for details.
2484
24852015-10-27  Werner Lemberg  <wl@gnu.org>
2486
2487	[pfr] Add some safety guards (#46302).
2488
2489	* src/pfr/pfrload.h (PFR_CHECK): Rename to...
2490	(PFR_CHECK_SIZE): ... this.
2491	(PFR_SIZE): [!PFR_CONFIG_NO_CHECKS]: Define to PFR_CHECK_SIZE.
2492
2493	* src/pfr/pfrload.c (pfr_log_font_count): Check `count'.
2494	(pfr_extra_item_load_kerning_pairs): Remove tracing message.
2495	(pfr_phy_font_load): Use PFR_CHECK_SIZE where appropriate.
2496	Allocate `chars' after doing a size checks.
2497
2498	* src/pfr/pfrsbit.c (pfr_load_bitmap_bits): Move test for invalid
2499	bitmap format to...
2500	(pfr_slot_load_bitmap): ... this function.
2501	Check bitmap size.
2502
25032015-10-26  Werner Lemberg  <wl@gnu.org>
2504
2505	[truetype] Fix sanitizing logic for `loca' (#46223).
2506
2507	* src/truetype/ttpload.c (tt_face_load_loca): A thinko caused an
2508	incorrect adjustment of the number of glyphs, most often using far
2509	too large values.
2510
25112015-10-25  Werner Lemberg  <wl@gnu.org>
2512
2513	[autofit] Improve tracing.
2514
2515	* src/autofit/afhints.c (af_print_idx, af_get_segment_index,
2516	af_get_edge_index): New functions.
2517
2518	(af_glyph_hints_dump_points): Remove unnecessary `|', `[', and `]'.
2519	Add segment and edge index for each point.
2520	Slightly change printing order of some elements.
2521	Don't print `-1' but `--' for missing elements.
2522
2523	(af_glyph_hints_dump_segments, af_glyph_hints_dump_edges): Remove
2524	unnecessary `|', `[', and `]'.
2525	Don't print `-1' but `--' for missing elements.
2526
25272015-10-24  Werner Lemberg  <wl@gnu.org>
2528
2529	[sfnt] Sanitize bitmap strike glyph height.
2530
2531	Problem reported by Nikolay Sivov <bunglehead@gmail.com>.
2532
2533	* src/sfnt/ttsbit.c (tt_face_load_strike_metrics): Avoid zero value
2534	for `metrics->height' by applying some heuristics.
2535
25362015-10-22  Werner Lemberg  <wl@gnu.org>
2537
2538	[sfnt, type42] Fix clang compiler warnings.
2539
2540	* src/sfnt/sfobjs.c (sfnt_init_face): Initialize `offset'.
2541
2542	* src/type42/t42parse.c (t42_parse_sfnts): Use proper cast.
2543
25442015-10-22  Dave Arnold  <darnold@adobe.com>
2545	    Werner Lemberg  <wl@gnu.org>
2546
2547	[cff] Avoid overflow/module arithmetic.
2548
2549	This modifies the addition of subroutine number to subroutine bias
2550	from unsigned to signed, but does not change any results.
2551
2552	* src/cff/cf2ft.c (cf2_initGlobalRegionBuffer,
2553	cf2_initLocalRegionBuffer): Change variable names from (unsigned)
2554	`idx' to (signed) `subrNum', since it is not an index until after
2555	the bias is added.
2556	* src/cff/cf2ft.h: Updated.
2557
2558	* src/cff/cf2intrp.c (cf2_interpT2CharString) <cf2_cmdCALLSUBR>:
2559	Updated similarly.
2560
25612015-10-22  Werner Lemberg  <wl@gnu.org>
2562
2563	[cid] Better check of `SubrCount' dictionary entry (#46272).
2564
2565	* src/cid/cidload.c (cid_face_open): Add more sanity tests for
2566	`fd_bytes', `gd_bytes', `sd_bytes', and `num_subrs'.
2567
25682015-10-21  Werner Lemberg  <wl@gnu.org>
2569
2570	[base] Pacify compiler (#46266).
2571
2572	* src/base/ftoutln.c (FT_Outline_EmboldenXY): Initialize `in' and
2573	`anchor'.
2574
25752015-10-21  Werner Lemberg  <wl@gnu.org>
2576
2577	[type42] Fix heap buffer overflow (#46269).
2578
2579	* src/type42/t42parse.c (t42_parse_sfnts): Fix off-by-one error in
2580	bounds checking.
2581
25822015-10-21  Dave Arnold  <darnold@adobe.com>
2583
2584	[cff] Fix limit in assert for max hints.
2585
2586	* src/cff/cf2interp.c (cf2_hintmask_setAll): Allow mask equal to the
2587	limit (96 bits).
2588
25892015-10-21  Dave Arnold  <darnold@adobe.com>
2590
2591	[cff] Remove an assert (#46107).
2592
2593	* src/cff/cf2hints.c (cf2_hintmap_insertHint): Ignore paired edges
2594	in wrong order.
2595
25962015-10-21  Werner Lemberg  <wl@gnu.org>
2597
2598	[sfnt] Avoid unnecessarily large allocation for WOFFs (#46257).
2599
2600	* src/sfnt/sfobjs.c (woff_open_font): Use WOFF's `totalSfntSize'
2601	only after thorough checks.
2602	Add tracing messages.
2603
26042015-10-21  Werner Lemberg  <wl@gnu.org>
2605
2606	[type42] Better check invalid `sfnts' array data (#46255).
2607
2608	* src/type42/t42parse.c (t42_parse_sfnts): Table lengths must be
2609	checked individually against available data size.
2610
26112015-10-20  Werner Lemberg  <wl@gnu.org>
2612
2613	[cid] Add a bunch of safety checks.
2614
2615	* src/cid/cidload.c (parse_fd_array): Check `num_dicts' against
2616	stream size.
2617	(cid_read_subrs): Check largest offset against stream size.
2618	(cid_parse_dict): Move safety check to ...
2619	(cid_face_open): ... this function.
2620	Also test length of binary data and values of `SDBytes',
2621	`SubrMapOffset', `SubrCount', `CIDMapOffset', and `CIDCount'.
2622
26232015-10-20  Werner Lemberg  <wl@gnu.org>
2624
2625	[cid] Avoid segfault with malformed input (#46250).
2626
2627	* src/cid/cidload.c (cid_read_subrs): Return a proper error code for
2628	unsorted offsets.
2629
26302015-10-20  StudioEtrange  <nomorgan@gmail.com>
2631
2632	* CMakeLists.txt: Enable shared library builds on MinGW (#46233).
2633
26342015-10-20  Werner Lemberg  <wl@gnu.org>
2635
2636	* src/type1/t1afm.c (T1_Read_Metrics): Fix memory leak (#46229).
2637
26382015-10-19  Ben Wagner  <bungeman@gmail.com>
2639
2640	[cid] Better handle invalid glyph stream offsets (#46221).
2641
2642	* src/cid/cidgload.c (cid_load_glyph): Check minimum size of glyph
2643	length.
2644
26452015-10-18  Werner Lemberg  <wl@gnu.org>
2646
2647	[psaux] Fix tracing of negative numbers.
2648
2649	Due to incorrect casting negative numbers were shown as very large
2650	(positive) integers on 64bit systems.
2651
2652	* src/psaux/t1decode.c (t1_decoder_parse_charstrings) <op_none>:
2653	Use division instead of shift.
2654
26552015-10-18  Werner Lemberg  <wl@gnu.org>
2656
2657	[truetype] Improve TT_CONFIG_OPTION_MAX_RUNNABLE_OPCODES (#46223).
2658
2659	* devel/ftoption.h, include/freetype/config/ftoption.h: Surround it
2660	with #ifndef ... #endif, as suggested in the tracker issue.
2661
26622015-10-18  Werner Lemberg  <wl@gnu.org>
2663
2664	[truetype] Better protection against malformed `fpgm' (#46223).
2665
2666	* src/truetype/ttobjs.c (tt_size_init_bytecode): Don't execute a
2667	malformed `fpgm' table more than once.
2668
26692015-10-17  Werner Lemberg  <wl@gnu.org>
2670
2671	* src/cid/cidgload.c (cid_load_glyph): Fix memory leak.
2672
2673	Reported by Kostya Serebryany <kcc@google.com>.
2674
26752015-10-17  Werner Lemberg  <wl@gnu.org>
2676
2677	[bdf] Prevent memory leak (#46217).
2678
2679	* src/bdf/bdflib.c (_bdf_parse_glyphs) <STARTCHAR>: Check
2680	_BDF_GLYPH_BITS.
2681
26822015-10-17  Werner Lemberg  <wl@gnu.org>
2683
2684	[bdf] Use stream size to adjust number of glyphs.
2685
2686	* src/bdf/bdflib.c (ACMSG17): New message macro.
2687	(_bdf_parse_t): Add member `size'.
2688	(bdf_load_font): Set `size'.
2689	(_bdf_parse_glyphs): Adjust `cnt' if necessary.
2690
26912015-10-17  Werner Lemberg  <wl@gnu.org>
2692
2693	* src/cid/cidload.c (cid_parse_dict): Check `[FG]DBytes' size.
2694
26952015-10-17  Werner Lemberg  <wl@gnu.org>
2696
2697	* src/cid/cidgload.c (cid_glyph_load): Check file offsets (#46222).
2698
26992015-10-17  Werner Lemberg  <wl@gnu.org>
2700
2701	[psaux] Fix heap buffer overflow (#46221).
2702
2703	* src/psaux/t1decode.c (t1_decoder_parse_charstring) <operator 12>:
2704	Fix limit check.
2705
27062015-10-17  Werner Lemberg  <wl@gnu.org>
2707
2708	* src/cid/cidload.c (cid_parse_dict): Handle invalid input (#46220).
2709
27102015-10-15  Kostya Serebryany  <kcc@google.com>
2711
2712	[ftfuzzer] Add README.
2713
2714	* src/tools/ftfuzzer/README: New file.
2715
27162015-10-15  Ben Wagner  <bungeman@gmail.com>
2717
2718	[bdf] Fix memory leak (#46213).
2719
2720	* src/bdf/bdflib.c (bdf_load_font): Always go to label `Fail' in
2721	case of error.
2722
27232015-10-15  Werner Lemberg  <wl@gnu.org>
2724
2725	[truetype] Add TT_CONFIG_OPTION_MAX_RUNNABLE_OPCODES (#46208).
2726
2727	* devel/ftoption.h, include/freetype/config/ftoption.h
2728	(TT_CONFIG_OPTION_MAX_RUNNABLE_OPCODES): New configuration macro.
2729
2730	* src/truetype/ttinterp.c (MAX_RUNNABLE_OPCODES): Removed.
2731	(TT_RunIns): Updated.
2732
27332015-10-15  Werner Lemberg  <wl@gnu.org>
2734
2735	* src/truetype/ttinterp.c (TT_RunIns): Fix bytecode stack tracing.
2736
2737	The used indices were off by 1.
2738
27392015-10-15  Ben Wagner  <bungeman@gmail.com>
2740	    Werner Lemberg  <wl@gnu.org>
2741
2742	* src/tools/ftfuzzer/ftfuzzer.cc: Handle fixed sizes (#46211).
2743
27442015-10-15  Werner Lemberg  <wl@gnu.org>
2745
2746	[base] Compute MD5 checksums only if explicitly requested.
2747
2748	This improves profiling accuracy.
2749
2750	* src/base/ftobjs.c (FT_Render_Glyph_Internal): Implement it.
2751
27522015-10-14  Werner Lemberg  <wl@gnu.org>
2753
2754	[base] Use `FT_' namespace for MD5 functions (#42366).
2755
2756	* src/base/ftobjs.c (MD5_*): Define as `FT_MD5_*'.
2757	Undefine HAVE_OPENSSL.
2758
27592015-10-13  Werner Lemberg  <wl@gnu.org>
2760
2761	[type1] Correctly handle missing MM axis names (#46202).
2762
2763	* src/type1/t1load.c (T1_Get_MM_Var): Implement it.
2764
27652015-10-13  Werner Lemberg  <wl@gnu.org>
2766
2767	[pcf] Quickly exit if font index < 0.
2768
2769	Similar to other font formats, this commit makes the parser no
2770	longer check the whole PCF file but only the header and the TOC if
2771	we just want to get the number of available faces (and a proper
2772	recognition of the font format).
2773
2774	* src/pcf/pcfdrivr.c (PCF_Face_Init): Updated.
2775	Exit quickly if face_index < 0.
2776
2777	* src/pcfread.c (pcf_load_font): Add `face_index' argument.
2778	Exit quickly if face_index < 0.
2779
2780	* src/pcf/pcf.h: Updated.
2781
27822015-10-13  Werner Lemberg  <wl@gnu.org>
2783
2784	[ftfuzzer] Handle TTCs and MM/GX variations.
2785
2786	This patch also contains various other improvements.
2787
2788	* src/tools/ftfuzzer/ftfuzzer.cc: Add preprocessor guard to reject
2789	pre-C++11 compilers.
2790	(FT_Global): New class.  Use it to provide a global constructor and
2791	destructor for the `FT_Library' object.
2792	(setIntermediateAxis): New function to select an (arbitrary)
2793	instance.
2794	(LLVMFuzzerTestOneInput): Loop over all faces and named instances.
2795	Also call `FT_Set_Char_Size'.
2796
27972015-10-13  Werner Lemberg  <wl@gnu.org>
2798
2799	[truetype] Refine some GX sanity tests.
2800
2801	Use the `gvar' table size instead of the remaining bytes in the
2802	stream.
2803
2804	* src/truetype/ttgxvar.h (GX_BlendRec): New field `gvar_size'.
2805
2806	* src/truetype/ttgxvar.c (ft_var_load_gvar): Set `gvar_size'.
2807	(ft_var_readpackedpoints, ft_var_readpackeddeltas: New argument
2808	`size'.
2809	(tt_face_vary_cvt, TT_Vary_Apply_Glyph_Deltas): Updated.
2810
28112015-10-13  Werner Lemberg  <wl@gnu.org>
2812
2813	[truetype] Another GX sanity test.
2814
2815	* src/truetype/ttgxvar.c (TT_Vary_Apply_Glyph_Deltas): Check
2816	`tupleCount'.
2817	Add tracing message.
2818
28192015-10-13  Werner Lemberg  <wl@gnu.org>
2820
2821	[truetype] Fix memory leak for broken GX fonts (#46188).
2822
2823	* src/truetype/ttgxvar.c (TT_Vary_Apply_Glyph_Deltas): Fix scope of
2824	deallocation.
2825
28262015-10-13  Werner Lemberg  <wl@gnu.org>
2827
2828	[truetype] Fix commit from 2015-10-10.
2829
2830	* src/truetype/ttgxvar.c (ft_var_load_gvar): Add missing error
2831	handling body to condition.
2832
28332015-10-12  Werner Lemberg  <wl@gnu.org>
2834
2835	[unix] Make MKDIR_P actually work.
2836
2837	* builds/unix/configure.raw: Fix underquoting of `INSTALL' and
2838	`MKDIR_P'.
2839
2840	Problem reported by Dan Liddell <lddll@yahoo.com>.
2841
28422015-10-11  Werner Lemberg  <wl@gnu.org>
2843
2844	[sfnt] Improve extraction of number of named instances.
2845
2846	* src/sfnt/sfobjs.c (sfnt_init_face)
2847	[TT_CONFIG_OPTION_GX_VAR_SUPPORT]: Check number of instances against
2848	`fvar' table size.
2849
28502015-10-10  Alexei Podtelezhnikov  <apodtele@gmail.com>
2851
2852	* src/base/ftoutln.c (FT_Outline_Get_Orientation): Fix overflow
2853	(#46149).
2854
28552015-10-10  Werner Lemberg  <wl@gnu.org>
2856
2857	[sfnt] Fix infinite loops with broken cmaps (#46167).
2858
2859	* src/sfnt/ttcmap.c (tt_cmap8_char_next, tt_cmap12_next): Take care
2860	of border conditions (i.e., if the loops exit naturally).
2861
28622015-10-10  Werner Lemberg  <wl@gnu.org>
2863
2864	[truetype] More sanity tests for GX handling.
2865
2866	These tests should mainly help avoid unnecessarily large memory
2867	allocations in case of malformed fonts.
2868
2869	* src/truetype/ttgxvar.c (ft_var_readpackedpoints,
2870	ft_var_readpackeddeltas): Check number of points against stream
2871	size.
2872	(ft_var_load_avar): Check `pairCount' against table length.
2873	(ft_var_load_gvar): Check `globalCoordCount' and `glyphCount'
2874	against table length.
2875	(tt_face_vary_cvt): Check `tupleCount' and `offsetToData'.
2876	Fix trace.
2877	(TT_Vary_Apply_Glyph_Deltas): Fix trace.
2878	Free `sharedpoints' to avoid memory leak.
2879
28802015-10-10  Werner Lemberg  <wl@gnu.org>
2881
2882	[truetype] Better protection against malformed GX data (#46166).
2883
2884	* src/truetype/ttgxvar.c (TT_Vary_Apply_Glyph_Deltas): Correctly
2885	handle empty `localpoints' array.
2886
28872015-10-10  Werner Lemberg  <wl@gnu.org>
2888
2889	* src/pcf/pcfread.c (pcf_read_TOC): Check stream size (#46162).
2890
28912015-10-09  Werner Lemberg  <wl@gnu.org>
2892
2893	* src/gzip/ftgzip.c (FT_Stream_OpenGzip): Use real stream size.
2894
28952015-10-08  Werner Lemberg  <wl@gnu.org>
2896
2897	[pcf] Protect against invalid number of TOC entries (#46159).
2898
2899	* src/pcf/pcfread.c (pcf_read_TOC): Check number of TOC entries
2900	against size of data stream.
2901
29022015-10-08  Werner Lemberg  <wl@gnu.org>
2903
2904	[type42] Protect against invalid number of glyphs (#46159).
2905
2906	* src/type42/t42parse.c (t42_parse_charstrings): Check number of
2907	`CharStrings' dictionary entries against size of data stream.
2908
29092015-10-08  Werner Lemberg  <wl@gnu.org>
2910
2911	[sfnt] Fix some signed overflows (#46149).
2912
2913	* src/sfnt/ttsbit.c (tt_face_load_strike_metrics)
2914	<TT_SBIT_TABLE_TYPE_SBIX>: Use `FT_MulDiv'.
2915
29162015-10-08  Werner Lemberg  <wl@gnu.org>
2917
2918	[type1] Protect against invalid number of subroutines (#46150).
2919
2920	* src/type1/t1load.c (parse_subrs): Check number of
2921	`Subrs' dictionary entries against size of data stream.
2922
29232015-10-07  Kostya Serebryany  <kcc@google.com>
2924
2925	[ftfuzzer] Add support for LLVM's LibFuzzer.
2926
2927	* src/tools/ftfuzzer/ftfuzzer.cc, src/tools/runinput.cc: New files.
2928
29292015-10-06  Alexei Podtelezhnikov  <apodtele@gmail.com>
2930
2931	[smooth] Faster alternative line renderer.
2932
2933	This implementation renders the entire line segment at once without
2934	subdividing it into scanlines.  The main speed improvement comes from
2935	reducing the number of divisions to just two per line segment, which
2936	is a bare minimum to calculate cell coverage in a smooth rasterizer.
2937	Notably, the progression from cell to cell does not itself require any
2938	divisions at all.  The speed improvement is more noticeable at larger
2939	sizes.
2940
2941	* src/smooth/ftgrays.c (gray_render_line): New implementation.
2942
29432015-10-06  Werner Lemberg  <wl@gnu.org>
2944
2945	[cff] Return correct PS names from pure CFF (#46130).
2946
2947	* src/cff/cffdrivr.c (cff_get_ps_name): Use SFNT service only for
2948	SFNT.
2949
29502015-10-04  Werner Lemberg  <wl@gnu.org>
2951
2952	[base] Replace left shifts with multiplication (#46118).
2953
2954	* src/base/ftglyph.c (ft_bitmap_glyph_bbox, FT_Get_Glyph): Do it.
2955
29562015-10-04  Werner Lemberg  <wl@gnu.org>
2957
2958	* Version 2.6.1 released.
2959	=========================
2960
2961
2962	Tag sources with `VER-2-6-1'.
2963
2964	* docs/VERSION.DLL: Update documentation and bump version number to
2965	2.6.1.
2966
2967	* README, Jamfile (RefDoc), builds/windows/vc2005/freetype.vcproj,
2968	builds/windows/vc2005/index.html,
2969	builds/windows/vc2008/freetype.vcproj,
2970	builds/windows/vc2008/index.html,
2971	builds/windows/vc2010/freetype.vcxproj,
2972	builds/windows/vc2010/index.html,
2973	builds/windows/visualc/freetype.dsp,
2974	builds/windows/visualc/freetype.vcproj,
2975	builds/windows/visualc/index.html,
2976	builds/windows/visualce/freetype.dsp,
2977	builds/windows/visualce/freetype.vcproj,
2978	builds/windows/visualce/index.html,
2979	builds/wince/vc2005-ce/freetype.vcproj,
2980	builds/wince/vc2005-ce/index.html,
2981	builds/wince/vc2008-ce/freetype.vcproj,
2982	builds/wince/vc2008-ce/index.html: s/2.6/2.6.1/, s/26/261/.
2983
2984	* include/freetype/freetype.h (FREETYPE_PATCH): Set to 1.
2985
2986	* builds/unix/configure.raw (version_info): Set to 18:1:12.
2987	* CMakeLists.txt (VERSION_PATCH): Set to 1.
2988
2989	* src/autofit/afmodule.c [AF_DEBUG_AUTOFIT]: Ensure C linking for
2990	dumping functions.
2991
29922015-10-04  Werner Lemberg  <wl@gnu.org>
2993
2994	[bzip2, gzip] Avoid access of uninitialized memory (#46109).
2995
2996	* src/bzip2/ftbzip2.c (ft_bzip2_file_fill_input), src/gzip/ftgzip.c
2997	(ft_gzip_file_fill_input): In case of an error, adjust the limit to
2998	avoid copying uninitialized memory.
2999
30002015-10-03  Werner Lemberg  <wl@gnu.org>
3001
3002	[bzip2, gzip] Avoid access of uninitialized memory (#46109).
3003
3004	* src/bzip2/ftbzip2.c (ft_bzip2_file_fill_output), src/gzip/ftgzip.c
3005	(ft_gzip_file_fill_output): In case of an error, adjust the limit to
3006	avoid copying uninitialized memory.
3007
30082015-10-01  Alexei Podtelezhnikov  <apodtele@gmail.com>
3009
3010	[smooth] Clean up worker.
3011
3012	* src/smooth/ftgrays.c (gray_TWorker): Remove never used fields.
3013
30142015-10-01  Werner Lemberg  <wl@gnu.org>
3015
3016	[sfnt] Make `tt_cmap4_char_map_linear' more robust (#46078).
3017
3018	* src/sfnt/ttcmap.c (tt_cmap4_char_map_linear): Take care of
3019	border conditions (i.e., if the loop exits naturally).
3020
30212015-10-01  Werner Lemberg  <wl@gnu.org>
3022
3023	* src/autofit/afranges.c (af_deva_nonbase_uniranges): Fix ranges.
3024	They should be a subset of `af_deva_uniranges'.
3025
30262015-10-01  Werner Lemberg  <wl@gnu.org>
3027
3028	[sfnt] Make `tt_cmap4_char_map_linear' faster (#46078).
3029
3030	* src/sfnt/ttcmap.c (tt_cmap4_char_map_linear): Use inner loop to
3031	reject too large glyph indices.
3032
30332015-09-30  Alexei Podtelezhnikov  <apodtele@gmail.com>
3034
3035	[smooth] Clean up worker.
3036
3037	* src/smooth/ftgrays.c (gray_TWorker): Remove lightly used `last_ey'.
3038	(gray_start_cell, gray_render_line): Update.
3039
30402015-09-30  Werner Lemberg  <wl@gnu.org>
3041
3042	[autofit] Replace `no-base' with `non-base'.
3043
3044	* src/autofit/*: Do it.
3045
30462015-09-30  Werner Lemberg  <wl@gnu.org>
3047
3048	[sfnt] Rewrite `tt_cmap4_char_map_linear' (#46078).
3049
3050	* src/sfnt/ttcmap.c (tt_cmap4_char_map_linear): Add code to better
3051	skip invalid segments.
3052	If searching the next character, provide a more efficient logic to
3053	speed up the code.
3054
30552015-09-30  Werner Lemberg  <wl@gnu.org>
3056
3057	[truetype] Adjust number of glyphs for malformed `loca' tables.
3058
3059	* src/truetype/ttpload.c (tt_face_load_loca): Implement it.
3060
30612015-09-29  Werner Lemberg  <wl@gnu.org>
3062
3063	[pshinter] Avoid harmless overflow (#45984).
3064
3065	* src/pshinter/pshglob.c (psh_blues_set_zones): Fix it.
3066
30672015-09-28  Werner Lemberg  <wl@gnu.org>
3068
3069	[autofit] Add support for Lao script.
3070
3071	Thanks to Danh Hong <danhhong@gmail.com> for guidance with blue zone
3072	characters!
3073
3074	* src/autofit/afblue.dat: Add blue zone data for Lao.
3075
3076	* src/autofit/afblue.c, src/autofit/afblue.h: Regenerated.
3077
3078	* src/autofit/afscript.h: Add Lao standard characters.
3079
3080	* src/autofit/afranges.c: Add Lao data.
3081
3082	* src/autofit/afstyles.h: Add Lao data.
3083
30842015-09-27  suzuki toshiya  <mpsuzuki@hiroshima-u.ac.jp>
3085
3086	[base] Fix a leak by broken sfnt-PS or resource fork (#46028).
3087
3088	open_face_from_buffer() frees passed buffer if valid font
3089	is not found.  But if copying to the buffer is failed,
3090	the allocated buffer should be freed within the caller.
3091
3092	* src/base/ftobjs.c (open_face_PS_from_sfnt_stream): Free
3093	the buffer `sfnt_ps' if an error caused before calling
3094	open_face_from_buffer().
3095	(Mac_Read_sfnt_Resource): Free the buffer `sfnt_data' if
3096	an error caused before calling open_face_from_buffer();
3097
30982015-09-27  suzuki toshiya  <mpsuzuki@hiroshima-u.ac.jp>
3099
3100	[mac] Fix buffer size calculation for LWFN font.
3101
3102	* src/base/ftmac.c (read_lwfn): Cast post_size to FT_ULong
3103	to prevent confused copy by too large chunk size.
3104
31052015-09-26  Alexei Podtelezhnikov  <apodtele@gmail.com>
3106
3107	* src/smooth/ftgrays.c (PIXEL_MASK): Remove unused macro.
3108
31092015-09-26  Werner Lemberg  <wl@gnu.org>
3110
3111	[autofit] Minor tracing improvement.
3112
3113	* src/autofit/aflatin.c (af_latin_metrics_scale_dim): Don't emit
3114	blue zones header line if there are no blue zones.
3115
31162015-09-26  Werner Lemberg  <wl@gnu.org>
3117
3118	[bzip2, gzip, lzw] Harmonize function signatures with prototype.
3119
3120	Suggested by Hin-Tak Leung.
3121
3122	* src/bzip2/ftbzip2.c (ft_bzip2_stream_io), src/gzip/ftgzip.c
3123	(ft_gzip_stream_io), src/lzw/ftlzw.c (ft_lzw_stream_io): Do it.
3124
31252015-09-26  Hin-Tak Leung  <htl10@users.sourceforge.net>
3126
3127	Add new FT_LOAD_COMPUTE_METRICS load flag.
3128
3129	* include/freetype/freetype.h (FT_LOAD_COMPUTE_METRICS): New macro.
3130	* src/truetype/ttgload.c (compute_glyph_metrics): Usage.
3131
31322015-09-26  Werner Lemberg  <wl@gnu.org>
3133
3134	* src/base/ftobjs.c (Mac_Read_sfnt_Resource): Add cast.
3135
31362015-09-25  Werner Lemberg  <wl@gnu.org>
3137
3138	[type1] Protect against invalid number of glyphs (#46029).
3139
3140	* src/type1/t1load.c (parse_charstrings): Check number of
3141	`CharStrings' dictionary entries against size of data stream.
3142
31432015-09-23  Werner Lemberg  <wl@gnu.org>
3144
3145	[sfnt] Better checks for invalid cmaps (2/2) (#46019).
3146
3147	While the current code in `FT_Get_Next_Char' correctly rejects
3148	out-of-bounds glyph indices, it can be extremely slow for malformed
3149	cmaps that use 32bit values.  This commit tries to improve that.
3150
3151	* src/sfnt/ttcmap.c (tt_cmap8_char_next, tt_cmap12_next,
3152	tt_cmap12_char_map_binary, tt_cmap13_next,
3153	tt_cmap13_char_map_binary): Reject glyph indices larger than or
3154	equal to the number of glyphs.
3155
31562015-09-23  Werner Lemberg  <wl@gnu.org>
3157
3158	[base, sfnt] Better checks for invalid cmaps (1/2).
3159
3160	* src/base/ftobjs.c (FT_Get_Char_Index): Don't return out-of-bounds
3161	glyph indices.
3162	(FT_Get_First_Char): Updated.
3163
3164	* src/sfnt/ttcmap.c (tt_cmap6_char_next): Don't return character
3165	codes greater than 0xFFFF.
3166
3167	(tt_cmap8_char_index): Avoid integer overflow in computation of
3168	glyph index.
3169	(tt_cmap8_char_next): Avoid integer overflows in computation of
3170	both next character code and glyph index.
3171
3172	(tt_cmap10_char_index): Fix unsigned integer logic.
3173	(tt_cmap10_char_next): Avoid integer overflow in computation of
3174	next character code.
3175
3176	(tt_cmap12_next): Avoid integer overflows in computation of both
3177	next character code and glyph index.
3178	(tt_cmap12_char_map_binary): Ditto.
3179	(tt_cmap12_char_next): Simplify.
3180
3181	(tt_cmap13_char_map_binary): Avoid integer overflow in computation
3182	of next character code.
3183	(tt_cmap13_char_next): Simplify.
3184
31852015-09-21  suzuki toshiya  <mpsuzuki@hiroshima-u.ac.jp>
3186
3187	[base] Check too long POST and sfnt resource (#45919).
3188
3189	* src/base/ftbase.h (FT_MAC_RFORK_MAX_LEN): Maximum length of the
3190	resource fork for Mac OS.  Resource forks larger than 16 MB can be
3191	written but can't be handled correctly, at least in Carbon routine.
3192	See https://support.microsoft.com/en-us/kb/130437.
3193
3194	* src/base/ftobjs.c (Mac_Read_POST_Resource): No need to use `0x'
3195	prefix for `%p' formatter.
3196
3197	* src/base/ftbase.c (Mac_Read_POST_Resource): Check the fragment and
3198	total size of the concatenated POST resource before buffer
3199	allocation.
3200	(Mac_Read_sfnt_Resource): Check the declared size of sfnt resource
3201	before buffer allocation.
3202
3203	* src/base/ftmac.c (read_lwfn, FT_New_Face_From_SFNT): Check the
3204	total resource size before buffer allocation.
3205
32062015-09-19  Werner Lemberg  <wl@gnu.org>
3207
3208	[sfnt] Improve handling of invalid SFNT table entries (#45987).
3209
3210	This patch fixes weaknesses in function `tt_face_load_font_dir'.
3211
3212	- It incorrectly assumed that valid tables are always at the
3213	  beginning.  As a consequence, some valid tables after invalid
3214	  entries (which are ignored) were never seen.
3215
3216	- Duplicate table entries (this is, having the same tag) were not
3217	  rejected.
3218
3219	- The number of valid tables was sometimes too large, leading to
3220	  access of invalid tables.
3221
3222	* src/sfnt/ttload.c (check_table_dir): Add argument to return number
3223	of valid tables.
3224	Add another tracing message.
3225	(tt_face_load_font_dir): Only allocate table array for valid
3226	entries as returned by `check_table_dir'.
3227	Reject duplicate tables and adjust number of valid tables
3228	accordingly.
3229
32302015-09-19  Werner Lemberg  <wl@gnu.org>
3231
3232	[pcf] Improve `FT_ABS' fix from 2015-09-17 (#45999).
3233
3234	* src/pcf/pcfread.c (pcf_load_font): Do first the cast to FT_Short,
3235	then take the absolute value.
3236	Also apply FT_ABS to `height'.
3237
32382015-09-17  Werner Lemberg  <wl@gnu.org>
3239
3240	[type42] Fix memory leak (#45989).
3241
3242	* src/type42/t42parse.c (t42_parse_charstrings): Allow only a single
3243	`CharStrings' array.
3244
32452015-09-17  Werner Lemberg  <wl@gnu.org>
3246
3247	[psaux] Fix memory leak (#45986).
3248
3249	* src/psaux/psobjs.c (ps_parser_load_field) <T1_FIELD_TYPE_MM_BBOX>:
3250	Free `temp' in case of error.
3251
32522015-09-17  Werner Lemberg  <wl@gnu.org>
3253
3254	[psaux] Improve tracing message.
3255
3256	* src/psaux/psobjs.c (ps_parser_load_field) <T1_FIELD_TYPE_MM_BBOX>:
3257	Handle plural correctly.
3258
32592015-09-17  Werner Lemberg  <wl@gnu.org>
3260
3261	[pcf] Fix integer overflows (#45985).
3262
3263	* src/pcf/pcfread.c (pcf_load_font): Use FT_MulDiv.
3264
32652015-09-17  Werner Lemberg  <wl@gnu.org>
3266
3267	[pcf] Use FT_ABS for some property values (#45893).
3268
3269	* src/pcf/pcfread.c (pcf_load_font): Take absolute values for
3270	AVERAGE_WIDTH, POINT_SIZE, PIXEL_SIZE, RESOLUTION_X, and
3271	RESOLUTION_Y.  In tracing mode, add warnings.
3272
32732015-09-16  Werner Lemberg  <wl@gnu.org>
3274
3275	Minor fixes for some clang warnings.
3276
3277	* src/base/ftoutln.c (FT_Outline_EmboldenXY): Cast, possible missing
3278	initialization.
3279
3280	* src/truetype/ttgload.c (TT_Process_Composite_Component): Cast.
3281
32822015-09-15  Werner Lemberg  <wl@gnu.org>
3283
3284	[type1, type42] Fix memory leaks (#45966).
3285
3286	* src/type1/t1load.c (parse_blend_axis_types): Handle multiple axis
3287	names.
3288	(parse_blend_design_map): Allow only a single design map.
3289	(parse_encoding): Handle multiple encoding vectors.
3290
3291	* src/type42/t42parse.c (t42_parse_encoding): Handle multiple
3292	encoding vectors.
3293
32942015-09-15  Werner Lemberg  <wl@gnu.org>
3295
3296	[truetype] Fix integer type (#45965).
3297
3298	* src/truetype/ttobjs.c (tt_synth_sfnt_checksum): Implement it.
3299
33002015-09-15  Werner Lemberg  <wl@gnu.org>
3301
3302	* src/pcf/pcfread.c (pcf_load_font): Fix integer overflow (#45964).
3303
33042015-09-15  Werner Lemberg  <wl@gnu.org>
3305
3306	[type1, type42] Check encoding array size (#45961).
3307
3308	* src/type1/t1load.c (parse_encoding), src/type42/t42parse.c
3309	(t42_parse_encoding): Do it.
3310
33112015-09-14  Alexei Podtelezhnikov  <apodtele@gmail.com>
3312
3313	* src/base/ftcalc.c (FT_MulFix) [FT_LONG64]: Improve.
3314
33152015-09-14  Werner Lemberg  <wl@gnu.org>
3316
3317	[type1] Fix another potential buffer overflow (#45955).
3318
3319	* src/type1/t1parse (T1_Get_Private_Dict): Assure that check for
3320	`eexec' doesn't exceed `limit'.
3321
33222015-09-13  Werner Lemberg  <wl@gnu.org>
3323
3324	Replace `mkinstalldirs' with AC_PROG_MKDIR_P.
3325
3326	* builds/unix/mkinstalldirs: Removed, no longer needed.
3327
3328	* builds/unix/configure.raw: Call `AC_PROG_MKDIR_P'.
3329	Update pwd call for `$INSTALL'.
3330
3331	* builds/unix/unix-def.in (MKINSTALLDIRS): Use `@MKDIR_P@'.
3332
3333	* autogen.sh: Updated.
3334
33352015-09-13  Werner Lemberg  <wl@gnu.org>
3336
3337	[winfonts] Check alignment shift count for resource data (#45938).
3338
3339	* src/winfonts/winfnt.c (fnt_face_get_dll_font): Implement it.
3340
33412015-09-13  Werner Lemberg  <wl@gnu.org>
3342
3343	[type1] Fix potential buffer overflow (#45923).
3344
3345	* src/type1/t1parse.c (T1_Get_Private_Dict): Assure `cur' doesn't
3346	point to end of file buffer.
3347
33482015-09-13  Werner Lemberg  <wl@gnu.org>
3349
3350	[gzip] Fix access of small compressed files (#45937).
3351
3352	* src/gzip/ftgzip.c (ft_gzip_stream_close): Avoid memory leak.
3353
3354	(ft_gzip_get_uncompressed_file): Correct byte order while reading
3355	unsigned long value.  Without this change, the whole optimization of
3356	accessing small files in `FT_Stream_OpenGzip' is never executed!  As
3357	a consequence, access to PCF files in general (which are normally
3358	small files) should be much improved now as originally intended.
3359
33602015-09-11  Werner Lemberg  <wl@gnu.org>
3361
3362	[psaux] Fix potential buffer overflow (#45922).
3363
3364	* src/psaux/psobjs.c (ps_parser_skip_PS_token): If a token is
3365	enclosed in balanced expressions, ensure that the cursor position
3366	doesn't get larger than the current limit.
3367
33682015-09-11  Werner Lemberg  <wl@gnu.org>
3369
3370	[base] Avoid crash while tracing `load_mac_face'.
3371
3372	Reported in Savannah bug #45919.
3373
3374	* src/base/ftobjs.c (load_mac_face): Honour FT_OPEN_MEMORY while
3375	tracing.
3376
33772015-09-11  Werner Lemberg  <wl@gnu.org>
3378
3379	[type42] Fix endless loop (#45920).
3380
3381	* src/type42/t42parse.c (t42_parse_encoding): Synchronize with
3382	type1's `parse_encoding'.
3383
33842015-09-10  Werner Lemberg  <wl@gnu.org>
3385
3386	[docmaker] Allow `-' in bold and italic markup.
3387
3388	* src/tools/docmaker/sources.py (re_italic, re_bold): Adjust
3389	accordingly.
3390
33912015-09-09  Alexei Podtelezhnikov  <apodtele@gmail.com>
3392
3393	* src/base/ftcalc.c (FT_RoundFix): Improve.
3394
33952015-09-09  Wojciech Mamrak  <wmamrak@gmail.com>
3396
3397	* src/base/ftcalc.c (FT_CeilFix, FT_FloorFix): Normalize.
3398
3399	This commit makes the functions behave as expected, this is,
3400	rounding towards plus or minus infinity.
3401
34022015-09-07  Alexei Podtelezhnikov  <apodtele@gmail.com>
3403
3404	* src/smooth/ftgrays.c (gray_render_line): Simplify clipping.
3405
34062015-09-04  Alexei Podtelezhnikov  <apodtele@gmail.com>
3407
3408	[raster,smooth] Microoptimizations.
3409
3410	* src/raster/ftraster.c (Insert_Y_Turn, Finalize_Profile_Table,
3411	Bezier_Up): Use do-while loops.
3412
3413	* src/smooth/ftgrays.c (gray_render_scanline, gray_render_line,
3414	gray_convert_glyph): Ditto.
3415
34162015-09-04  Werner Lemberg  <wl@gnu.org>
3417
3418	[autofit] Redesign code ranges (2/2).
3419
3420	This commit adds two fallback scripts (`latb', `latp') and
3421	implements support for the no-base character ranges introduced in
3422	the previous commit.
3423
3424	* src/autofit/aftypes.h (AF_ScriptClassRec): Add
3425	`script_uni_nobase_ranges' field.
3426	(AF_DEFINE_SCRIPT_CLASS): Updated.
3427
3428	* src/autofit/afscript.h, src/autofit/afstyles.h: Add `latb' and
3429	`latp' fallback scripts.
3430
3431	* src/autofit/afblue.dat: Add blue zones for Latin subscript and
3432	superscript fallback scripts.
3433
3434	* src/autofit/afblue.c, src/autofit/afblue.h: Regenerated.
3435
3436	* src/autofit/afglobal.h (AF_NOBASE): New style flag for no-base
3437	characters.
3438	(AF_STYLE_MASK): Updated.
3439
3440	* src/autofit/afglobal.c (SCRIPT): Updated.
3441	(af_face_globals_compute_style_coverage): Handle new style flag.
3442
3443	* src/autofit/aflatin.c (af_latin_hints_apply): Handle new style
3444	flag.
3445
3446	* src/autofit/afranges.h (SCRIPT): Use it to export no-base ranges.
3447
34482015-09-04  Werner Lemberg  <wl@gnu.org>
3449
3450	[autofit] Redesign code ranges (1/2).
3451
3452	This patch introduces auxiliary code ranges that identify no-base
3453	characters; they refer to glyphs of a script that should be hinted
3454	without alignments to blue zones (mostly diacritics).
3455
3456	It also splits off ranges for fallback scripts that handle subscript
3457	and superscript characters not covered by OpenType features.  For
3458	example, this greatly helps improve the hinting of various phonetic
3459	alphabets, which contain a large amount characters that look like
3460	superscript glyphs.
3461
3462	Finally, code ranges are updated to Unicode 8.0, and enclosed
3463	characters are removed in general since they normally look better if
3464	they stay unhinted.
3465
3466	* src/autofit/afranges.c (af_latn_uniranges): Updated to Unicode
3467	8.0.
3468	Split off superscript-like and subscript-like glyphs into...
3469
3470	(af_latb_uniranges, af_latp_uniranges): ... these two new arrays.
3471
3472	(af_xxxx_nobase_uniranges): New arrays that hold no-base characters
3473	of the corresponding character ranges.
3474
34752015-09-03  Werner Lemberg  <wl@gnu.org>
3476
3477	[autofit] Pass glyph index to hinting function.
3478
3479	No functionality change yet.
3480
3481	* src/autofit/aftypes.h (AF_WritingSystem_ApplyHintsFunc): Pass
3482	glyph index.
3483
3484	* src/autofit/afcjk.c, src/autofit/afcjk.h (af_cjk_hints_apply),
3485	src/autofit/afdummy.c (af_dummy_hints_apply), src/autofit/afindic.c
3486	(af_indic_hints_apply), src/autofit/aflatin.c
3487	(af_latin_hints_apply), src/autofit/aflatin2.c
3488	(af_latin2_hints_apply), src/autofit/afloader.c (af_loader_load_g):
3489	Updated.
3490
34912015-08-30  Werner Lemberg  <wl@gnu.org>
3492
3493	[autofit] Code clean-up.
3494
3495	* src/autofit/afglobal.h (AF_STYLE_MASK): New macro.
3496	(AF_STYLE_UNASSIGNED): Use AF_STYLE_MASK for definition.
3497
3498	* src/autofit/afglobal.c (af_face_globals_compute_style_coverage):
3499	Updated.
3500
35012015-08-30  Werner Lemberg  <wl@gnu.org>
3502
3503	[autofit] Make glyph style array use 16bit values.
3504
3505	* include/freetype/ftautoh.h (FT_Prop_GlyphToScriptMap): Use
3506	`FT_UShort' for `map' field.
3507
3508	* src/autofit/afglobal.c (af_face_globals_compute_style_coverage,
3509	af_face_globals_new), src/autofit/hbshim.c, src/autofit/hbshim.h
3510	(af_get_coverage): Use FT_UShort for `glyph_styles' array.
3511
3512	* src/autofit/afglobal.h (AF_STYLE_UNASSIGNED, AF_DIGIT): Extend to
3513	16 bits.
3514	(AF_FaceGlobalsRec): Use `FT_UShort' for `glyph_styles' field.
3515
35162015-08-26  Werner Lemberg  <wl@gnu.org>
3517
3518	* builds/unix/configure.raw: Need harfbuzz >= 0.9.21 (#45828).
3519
35202015-08-25  Werner Lemberg  <wl@gnu.org>
3521
3522	[base] Improve kerning tracing and documentation.
3523
3524	* src/base/ftobjs.c (FT_Get_Kerning): Emit tracing message if
3525	scaled-down kerning values differ.
3526
35272015-08-18  Werner Lemberg  <wl@gnu.org>
3528
3529	[raster] Remove last remnants of `raster5' driver.
3530
3531	* src/raster/ftrend1.h (ft_raster5_renderer_class): Removed.
3532
3533	* src/raster/rastpic.c, src/raster/rastpic.h
3534	(ft_raster5_renderer_class_pic_init,
3535	ft_raster5_renderer_class_pic_free): Removed.
3536
35372015-08-17  Alexei Podtelezhnikov  <apodtele@gmail.com>
3538
3539	[base] Improve emboldener (#45596).
3540
3541	* src/base/ftoutln.c (FT_Outline_EmboldenXY): Correct displacement
3542	of zero-length segments.
3543
35442015-08-16  Alexei Podtelezhnikov  <apodtele@gmail.com>
3545
3546	[base] Reoptimize arithmetic.
3547
3548	* src/base/ftcalc.c (FT_MulDiv, FT_MulFix) [!FT_LONG64]: Remove
3549	special cases that slow down the general use.
3550
35512015-08-15  pazer  <ibemad@gmail.com>
3552
3553	Fix C++ compilation (#45762).
3554
3555	* src/base/ftstroke.c (ft_outline_glyph_class): Use
3556	FT_CALLBACK_TABLE.
3557
35582015-08-14  Alexei Podtelezhnikov  <apodtele@gmail.com>
3559
3560	[truetype] Clean up.
3561
3562	* src/truetype/ttgload.c (TT_Process_Composite_Component): Use
3563	`FT_Outline_Transform' and `FT_Outline_Translate'.
3564	(translate_array): Dropped.
3565
35662015-08-14  Andreas Enge  <andreas.enge@inria.fr>
3567
3568	* builds/unix/detect.mk (CONFIG_SHELL): Don't handle it (#44261).
3569
35702015-08-13  Werner Lemberg  <wl@gnu.org>
3571
3572	[truetype] Introduce named instance access to GX fonts.
3573
3574	For functions querying a face, bits 16-30 of the face index can hold
3575	the named instance index if we have a GX font.  The indices start
3576	with value 1; value 0 indicates font access without GX variation
3577	data.
3578
3579	* include/freetype/freetype.h (FT_FaceRec): Update documentation.
3580	* include/freetype/internal/sfnt.h: Ditto.
3581
3582	* src/sfnt/sfobjs.c (sfnt_init_face)
3583	[TT_CONFIG_OPTION_GX_VAR_SUPPORT]: Get number of named instances and
3584	do argument checks.
3585	(sfnt_load_face): Updated.
3586
3587	* src/truetype/ttobjs.c (tt_face_init)
3588	[TT_CONFIG_OPTION_GX_VAR_SUPPORT]: Use named instance, overwriting
3589	the style name.
3590
3591	* src/base/ftobjs.c (open_face_from_buffer,
3592	open_face_PS_from_sfnt_stream): Updated.
3593	* src/bdf/bdfdrivr.c (BDF_Face_Init): Updated.
3594	* src/cff/cffload.c (cff_font_load): Updated.
3595
3596	* src/cff/cffobjs.c (cff_face_init): Make function exit early for
3597	pure CFF fonts if `font_index < 0'.
3598	Updated.
3599
3600	* src/cid/cidobjs.c (cid_face_init): Updated.
3601	* src/pcf/pcfdrivr.c (PCF_Face_Init): Updated.
3602	* src/pfr/pfrobjs.c (pfr_face_init): Updated.
3603	* src/type1/t1objs.c (T1_Face_Init): Updated.
3604	* src/type42/t42objs.c (T42_Face_Init): Updated.
3605	* src/winfonts/winfnt.c (fnt_face_get_dll_font, FNT_Face_Init):
3606	Updated.
3607
3608	* docs/CHANGES: Updated.
3609
36102015-08-12  Alexei Podtelezhnikov  <apodtele@gmail.com>
3611
3612	[type1,cff,cid] Streamline font matrix application.
3613
3614	* src/type1/t1gload.c (T1_Load_Glyph): Directly modify advances only
3615	if font matrix is not trivial.
3616	* src/cff/cffgload.c (cff_slot_load): Ditto.
3617	* src/cid/cidgload.c (cid_slot_load_glyph): Ditto for advances and the
3618	entire outline.
3619
36202015-08-11  Werner Lemberg  <wl@gnu.org>
3621
3622	[builds/unix] Minor.
3623
3624	* builds/unix/configure.raw:
3625	s/lib{priv,staticconf}/libs{priv,staticconf}/ for orthogonality with
3626	similarly named uppercase variables.
3627
36282015-08-10  Alexei Podtelezhnikov  <apodtele@gmail.com>
3629
3630	[type1,cid,type42] Minor improvements.
3631
3632	* src/type1/t1load.c (t1_parse_font_matrix): Scale units per EM only
3633	when necessary. Refresh comments.
3634	* src/cid/cidload.c (cid_parse_font_matrix): Ditto.
3635	* src/type42/t42parse.c (t42_parse_font_matrix): Refresh comments.
3636
36372015-08-08  Werner Lemberg  <wl@gnu.org>
3638
3639	[type42] Fix glyph access.
3640
3641	This is a severe bug: We've missed one level of indirection, as
3642	described in the Type 42 specification.  As a result, ftview
3643	sometimes showed incorrect glyphs for given glyph names, and even
3644	displayed `error 0x0006' (invalid argument!) in case the number of
3645	glyph indices differed between the Type 42 font and the embedded
3646	TTF.
3647
3648	Apparently, noone ever noticed it; this shows how much Type 42 fonts
3649	are in use...
3650
3651	* src/type42/t42objs.c (T42_GlyphSlot_Load): Map Type 42 glyph index
3652	to embedded TTF's glyph index.
3653
36542015-08-08  Werner Lemberg  <wl@gnu.org>
3655
3656	[type42] Minor clean-up.
3657
3658	* src/type42/t42parse.c (t42_parse_font_matrix): Remove unused
3659	variable.
3660
36612015-08-06  Alexei Podtelezhnikov  <apodtele@gmail.com>
3662
3663	[type42] Parse FontMatrix according to specifications.
3664
3665	* src/type42/t42parse.c (t42_parse_font_matrix): Type 42 FontMatrix
3666	does not need scaling by 1000. Units_per_EM are taken from the
3667	embedded TrueType.
3668
36692015-08-06  Werner Lemberg  <wl@gnu.org>
3670
3671	[autofit] Improve Arabic hinting.
3672
3673	Problem reported by Titus Nemeth <tn@tntypography.eu> (by using
3674	ttfautohint).
3675
3676	* src/autofit/afblue.dat: Add neutral blue zone for the tatweel
3677	character.
3678
3679	* src/autofit/afblue.c, src/autofit/afblue.h: Regenerated.
3680
36812015-08-05  Alexei Podtelezhnikov  <apodtele@gmail.com>
3682
3683	[truetype] Clean up types.
3684
3685	* src/truetype/ttobjs.c (TT_Size): Move declaration from here.
3686	* include/freetype/internal/tttypes.h (TT_Size): ... to here.
3687	(TT_LoaderRec): Switch to appropriate types for `face' and `size'.
3688	* src/truetype/ttgload.c: Remove corresponding type casts.
3689	* src/truetype/ttsubpix.c: Ditto.
3690
36912015-08-05  Werner Lemberg  <wl@gnu.org>
3692
3693	[autofit] Improve recognition of flat vs. rounded segments.
3694
3695	Lower the flatness threshold from upem/8 to upem/14, making the
3696	auto-hinter accept shorter elements.
3697
3698	Synchronize flat/round stem selection algorithm with blue zone code.
3699
3700	* src/autofit/aflatin.c (FLAT_THRESHOLD): New macro.
3701	(af_latin_metrics_init_blues): Use it.
3702	(af_latin_hints_compute_segments): Collect information on maximum
3703	and minimum coordinates of `on' points; use this to add a constraint
3704	for the flat/round decision similar to
3705	`af_latin_metrics_init_blues'.
3706
37072015-08-04  Werner Lemberg  <wl@gnu.org>
3708
3709	Another left-shift bug (#45681).
3710
3711	* src/base/ftobjs.c (IsMacBinary): Only accept positive values for
3712	`dlen'.
3713
37142015-08-03  Alexei Podtelezhnikov  <apodtele@gmail.com>
3715
3716	[base] Fix `ft_corner_orientation'.
3717
3718	Remove casting from `FT_Long' to `FT_Int' that might change the sign
3719	of the return value and make it faster too.
3720
3721	* src/base/ftcalc.c (ft_corner_orientation): On 32-bit systems, stay
3722	with 32-bit arithmetic when safe. Use plain math on 64-bit systems.
3723	* src/pshinter/pshalgo.c: Remove old unused code.
3724
37252015-08-03  Werner Lemberg  <wl@gnu.org>
3726
3727	* src/truetype/ttgload.c (load_truetype_glyph)
3728	[TT_CONFIG_OPTION_GX_VAR_SUPPORT]: Fix crash for composite glyphs
3729	having a depth greater than 1.
3730
37312015-08-03  Werner Lemberg  <wl@gnu.org>
3732
3733	Fix typo in clang bug from 2015-07-31 (#45678).
3734
3735	* src/base/ftrfork.c (FT_Raccess_Get_HeaderInfo): Fix inequality.
3736
37372015-08-02  Werner Lemberg  <wl@gnu.org>
3738
3739	* CMakeLists.txt: Improve shared library support.
3740
3741	Based on a patch from John Cary <cary@txcorp.com>.
3742
37432015-08-02  Werner Lemberg  <wl@gnu.org>
3744
3745	* builds/unix/freetype-config.in (enable_shared): Remove.  Unused.
3746
37472015-08-02  Werner Lemberg  <wl@gnu.org>
3748
3749	Fix more invalid left-shifts.
3750
3751	* src/pfr/pfrgload.c (pfr_glyph_load_compound): Use multiplication,
3752	not left-shift.
3753
3754	* src/truetype/ttgxvar.c (ft_var_load_avar, ft_var_load_gvar,
3755	tt_face_vary_cvt, TT_Vary_Apply_Glyph_Deltas): Use multiplication,
3756	not left-shift.
3757
37582015-07-31  Werner Lemberg  <wl@gnu.org>
3759
3760	Fix some bugs found by clang's `-fsanitize=undefined' (#45661).
3761
3762	* src/base/ftrfork.c (FT_Raccess_Get_HeaderInfo): Only accept
3763	positive values from header.
3764	Check overflow.
3765
3766	* src/base/ftoutln.c (SCALED): Correctly handle left-shift of
3767	negative values.
3768
3769	* src/bdf/bdf.h (_bdf_glyph_modified, _bdf_set_glyph_modified,
3770	_bdf_clear_glyph_modified): Use unsigned long constant.
3771
3772	* src/bdf/bdfdrivr.c (BDF_Size_Select, BDF_Glyph_Load): Don't
3773	left-shift values that can be negative.
3774
3775	* src/pcf/pcfdrivr.c (PCF_Size_Select, PCF_Glyph_Load): Don't
3776	left-shift values that can be negative.
3777
3778	* src/raster/ftraster.c (SCALED): Correctly handle left-shift of
3779	negative values.
3780
3781	* src/sfnt/ttsbit.c (tt_face_load_strike_metrics): Don't left-shift
3782	values that can be negative.
3783
3784	* src/truetype/ttgload.c (TT_Load_Composite_Glyph,
3785	compute_glyph_metrics, load_sbit_image): Don't left-shift values
3786	that can be negative.
3787
37882015-07-31  Werner Lemberg  <wl@gnu.org>
3789
3790	Define FT_LONG_MAX.
3791
3792	* include/freetype/config/ftstdlib.h (FT_LONG_MAX): New macro.
3793	* src/cff/cf2arrst.c (cf2_arrstack_setNumElements): Use it.
3794
37952015-07-28  Alexei Podtelezhnikov  <apodtele@gmail.com>
3796
3797	* src/base/ftcalc.c (FT_Vector_NormLen): Clarify.
3798
37992015-07-27  Alexei Podtelezhnikov  <apodtele@gmail.com>
3800
3801	* src/base/ftcalc.c (FT_Vector_NormLen): Explicate type conversions.
3802
38032015-07-26  Matthias Clasen  <matthias.clasen@gmail.com>
3804
3805	[cff] Don't use `hmtx' table for LSB (#45520).
3806
3807	* src/cff/cffgload.c (cff_slot_load): Use `htmx' table for advance
3808	width only.  Bug introduced 2015-04-10.
3809
38102015-07-09  Werner Lemberg  <wl@gnu.org>
3811
3812	Better support of user-supplied C++ namespaces.
3813
3814	See
3815
3816	  https://lists.nongnu.org/archive/html/freetype-devel/2015-07/msg00008.html
3817
3818	for a rationale.
3819
3820	* src/autofit/afpic.h, src/base/basepic.h, src/cff/cffpic.h,
3821	src/pshinter/pshpic.h, src/psnames/pspic.h, src/raster/rastpic.h,
3822	src/sfnt/sfntpic.h, src/smooth/ftspic.h, src/truetype/ttpic.h
3823	(FT_BEGIN_HEADER, FT_END_HEADER): Move macro calls to not enclose
3824	header files that contain FT_{BEGIN,END}_HEADER macros by
3825	themselves.
3826
3827	* src/autofit/aftypes.h [FT_DEBUG_AUTOFIT]: Include
3828	FT_CONFIG_STANDARD_LIBRARY_H earlier.
3829
3830	* src/truetype/ttpic.h: Include FT_INTERNAL_PIC_H.
3831
38322015-07-07  Werner Lemberg  <wl@gnu.org>
3833
3834	[sfnt] Make `tt_face_get_name' member of the SFNT interface.
3835
3836	* include/freetype/internal/sfnt.h (TT_Get_Name_Func): New
3837	prototype.
3838	(SFNT_Interface, FT_DEFINE_SFNT_INTERFACE): New member `get_name'.
3839
3840	* src/sfnt/sfdriver.c (sfnt_interface): Updated.
3841
3842	* src/sfnt/sfobjs.c (tt_face_get_name): Tag it with `LOCAL_DEF'.
3843	* src/sfnt/sfobjs.h: Add prototype for it.
3844
38452015-06-30  Werner Lemberg  <wl@gnu.org>
3846
3847	Fix some clang compiler warnings.
3848
3849	* src/base/ftoutln.c (FT_Outline_EmboldenXY), src/cff/cf2intrp.c
3850	(cf2_interpT2CharString), src/truetype/ttgload.c
3851	(load_truetype_glyph), src/truetype/ttgxvar.c (tt_handle_deltas),
3852	src/truetype/ttinterp.c (Ins_INSTCTRL): Fix signedness issues.
3853
38542015-06-29  Alexei Podtelezhnikov  <apodtele@gmail.com>
3855
3856	[truetype] Speed up bytecode interpreter.
3857
3858	* src/truetype/ttinterp.c (Normalize): Use `FT_Vector_NormLen'.
3859
38602015-06-29  Alexei Podtelezhnikov  <apodtele@gmail.com>
3861
3862	[base] Speed up emboldening.
3863
3864	* src/base/ftoutln.c (FT_Outline_EmboldenXY): Use
3865	`FT_Vector_NormLen'.
3866
38672015-06-29  Alexei Podtelezhnikov  <apodtele@gmail.com>
3868
3869	[base] Implement fast vector normalization.
3870
3871	The function uses Newton's iterations instead of dividing vector
3872	components by its length, which needs a square root. This is,
3873	literally, a bit less accurate but a lot faster.
3874
3875	* src/base/ftcalc.c (FT_Vector_NormLen): New function.
3876
38772015-06-28  Werner Lemberg  <wl@gnu.org>
3878
3879	* CMakeLists.txt: Always create `ftconfig.h'.
3880
3881	For non-UNIX builds, the file stays unmodified.  However, it's
3882	better to have the main configuration files at the same place
3883	regardless of the OS.
3884
38852015-06-28  Werner Lemberg  <wl@gnu.org>
3886
3887	* CMakeLists.txt: Improve MSVC support (#43737).
3888
38892015-06-28  Werner Lemberg  <wl@gnu.org>
3890
3891	[cmake] Check for libraries and create `ftoption.h'.
3892
3893	* builds/FindHarfBuzz.cmake: New file, taken from
3894
3895	  https://trac.webkit.org/browser/trunk/Source/cmake/FindHarfBuzz.cmake
3896
3897	* CMakeLists.Txt: Add path to local cmake modules.
3898	Find dependencies for zlib, bzip2, libpng, and harfbuzz.
3899	Create `ftoption.h' file.
3900	Set up include and linker stuff for libraries.
3901
39022015-06-28  Werner Lemberg  <wl@gnu.org>
3903
3904	* CMakeLists.txt: Fix creation of `ftconfig.h'.
3905	Check for UNIX header files using `check_include_file'.
3906	Set up correct header include directories.
3907
39082015-06-28  Werner Lemberg  <wl@gnu.org>
3909
3910	* CMakeLists.txt: Disallow in-source builds.
3911
39122015-06-27  Werner Lemberg  <wl@gnu.org>
3913
3914	* src/tools/docmaker/utils.py (check_output): Add missing `\n'.
3915
39162015-06-26  Werner Lemberg  <wl@gnu.org>
3917
3918	* CMakeLists.txt: Select platform-dependent `ftdebug.c'.
3919
39202015-06-25  Werner Lemberg  <wl@gnu.org>
3921
3922	* CMakeLists.txt: Use cmake functions for generating `ftconfig.h'.
3923	Additionally, do this for UNIX only.
3924
39252015-06-25  Werner Lemberg  <wl@gnu.org>
3926
3927	* CMakeLists.txt (BASE_SRCS): Use `ftbase.c' and `psnames.c'.
3928
39292015-06-25  Werner Lemberg  <wl@gnu.org>
3930
3931	Another adjustment to header locations.
3932
3933	This change is a result of a discussion thread on freetype-devel
3934
3935	  https://lists.nongnu.org/archive/html/freetype-devel/2015-06/msg00041.html
3936
3937	Re-introduce the `freetype2' subdirectory for all FreeType header
3938	files after installation, and rename the `freetype2' subdirectory in
3939	the git repository to `freetype'.
3940
3941	* include/freetype2: Renamed to...
3942	* include/freetype: This.
3943
3944	* CMakeLists.txt (PUBLIC_HEADERS, PUBLIC_CONFIG_HEADERS,
3945	PRIVATE_HEADERS): Updated.
3946	Update creation of `ftconfig.h'.
3947	Install generated `ftconfig.h'.
3948
3949	* Jamfile (HDRMACRO, RefDoc), autogen.sh: Updated.
3950
3951	* builds/amiga/include/config/ftconfig.h, builds/freetype.mk
3952	(PUBLIC_DIR), builds/symbian/bld.inf, builds/toplevel.mk (work),
3953	builds/unix/freetype2.in: Updated.
3954
3955	* builds/unix/freetype-config.in: Updated.
3956	* builds/unix/configure.raw: Don't check for `rmdir'.
3957	* builds/unix/unix-def.in (DELDIR): Use `rm -rf', which is portable
3958	according to the autoconf info manual.
3959	* builds/unix/install.mk (install, uninstall,
3960	distclean_project_unix): Update and simplify.
3961
3962	* builds/wince/*, builds/windows/*: Updated.
3963
3964	* devel/ft2build.h, include/ft2build.h: Updated.
3965
3966	* include/freetype2/config/ftheader.h,
3967	include/freetype2/internal/ftserv.h,
3968	include/freetype2/internal/internal.h: Update all header file
3969	macros.
3970
3971	* src/tools/chktrcmp.py (TRACE_DEF_FILES): Updated.
3972
3973	* docs/*: Updated.
3974
39752015-06-24  Alexei Podtelezhnikov  <apodtele@gmail.com>
3976
3977	* src/bdf/bdflib.c (_bdf_parse_start): Disallow 0 bpp.
3978
39792015-06-24  Alexei Podtelezhnikov  <apodtele@gmail.com>
3980
3981	* src/bdf/bdflib.c (_bdf_parse_start): Simplify bpp parsing.
3982
39832015-06-23  Werner Lemberg  <wl@gnu.org>
3984
3985	s/TYPEOF/FT_TYPEOF/ (#45376).
3986
3987	* builds/unix/ftconfig.in, builds/vms/ftconfig.in,
3988	include/freetype2/config/ftconfig.h,
3989	include/freetype2/internal/ftobjs.h, src/autofit/afwarp.h: Do it.
3990
39912015-06-22  Werner Lemberg  <wl@gnu.org>
3992
3993	Fix Savannah bug #45097.
3994
3995	We no longer `pollute' the namespace of possible header file names;
3996	instead we move `ft2build.h' up by one level so that it gets
3997	installed in the default include directory (e.g.,
3998	/usr/local/include).  After this commit, only `ft2build.h' stays in
3999	the compiler's include path.
4000
4001	No visible changes for the user who follows the standard FreeType
4002	header inclusion rules.
4003
4004	* include/*: Move to ...
4005	* include/freetype2/*: This directory, except `ft2build.h'.
4006
4007	* CMakeLists.txt (PUBLIC_HEADERS, PUBLIC_CONFIG_HEADERS,
4008	PRIVATE_HEADERS), Jamfile (HDRMACRO, RefDoc), autogen.sh: Updated.
4009
4010	* builds/amiga/include/config/ftconfig.h, builds/freetype.mk
4011	(PUBLIC_DIR), builds/symbian/bld.inf, builds/toplevel.mk (work),
4012	builds/unix/install.mk (install, uninstall),
4013	builds/unix/freetype2.in: Updated.
4014
4015	* builds/unix/freetype-config.in: Updated.
4016	Emit -I directory only if it is not `/usr/include'.
4017
4018	* builds/wince/*, builds/windows/*: Updated.
4019
4020	* devel/ft2build.h, include/ft2build.h: Updated.
4021
4022	* include/freetype2/config/ftheader.h,
4023	include/freetype2/internal/ftserv.h,
4024	include/freetype2/internal/internal.h: Update all header file
4025	macros.
4026
4027	* src/tools/chktrcmp.py (TRACE_DEF_FILES): Updated.
4028
40292015-06-21  Werner Lemberg  <wl@gnu.org>
4030
4031	Make Jam support work again.
4032
4033	This is just very basic stuff and just a little bit tested on
4034	GNU/Linux only.  I won't delve into this since I'm not a Jam user.
4035
4036	* Jamfile: Call `HDRMACRO' for `ftserv.h' also.
4037	(DEFINES): Replace with...
4038	(CCFLAGS): ... this.
4039
4040	* src/Jamfile: Don't call `HDRMACRO' for `internal.h'; this is
4041	already handled in the top-level Jamfile.
4042
4043	* src/autofit/Jamfile (DEFINES): Replace with...
4044	(CCFLAGS): ... this.
4045	(_sources): Add missing files.
4046
4047	* src/cache/Jamfile: Don't call `HDRMACRO' for `ftcache.h'; it no
4048	longer contains macro header definitions.
4049
4050	* src/base/Jamfile, src/cff/Jamfile, src/sfnt/Jamfile,
4051	src/truetype/Jamfile (_sources): Add missing files.
4052
40532015-06-16  Werner Lemberg  <wl@gnu.org>
4054
4055	Fix Savannah bug #45326.
4056
4057	* src/sfnt/sfntpic.h (SFNT_SERVICES_GET): Remove duplicate
4058	definitions.
4059
40602015-06-07  Werner Lemberg  <wl@gnu.org>
4061
4062	* Version 2.6 released.
4063	=======================
4064
4065
4066	Tag sources with `VER-2-6'.
4067
4068	* docs/VERSION.DLL: Update documentation and bump version number to
4069	2.6.
4070
4071	* README, Jamfile (RefDoc), builds/windows/vc2005/freetype.vcproj,
4072	builds/windows/vc2005/index.html,
4073	builds/windows/vc2008/freetype.vcproj,
4074	builds/windows/vc2008/index.html,
4075	builds/windows/vc2010/freetype.vcxproj,
4076	builds/windows/vc2010/index.html,
4077	builds/windows/visualc/freetype.dsp,
4078	builds/windows/visualc/freetype.vcproj,
4079	builds/windows/visualc/index.html,
4080	builds/windows/visualce/freetype.dsp,
4081	builds/windows/visualce/freetype.vcproj,
4082	builds/windows/visualce/index.html,
4083	builds/wince/vc2005-ce/freetype.vcproj,
4084	builds/wince/vc2005-ce/index.html,
4085	builds/wince/vc2008-ce/freetype.vcproj,
4086	builds/wince/vc2008-ce/index.html: s/2.5.5/2.6/, s/255/26/.
4087
4088	* include/freetype/freetype.h (FREETYPE_MINOR): Set to 6.
4089	(FREETYPE_PATCH): Set to 0.
4090
4091	* builds/unix/configure.raw (version_info): Set to 18:0:12.
4092	* CMakeLists.txt (VERSION_MINOR): Set to 6.
4093	(VERSION_PATCH): Set to 0.
4094
4095	* src/autofit/afmodule.c [!FT_MAKE_OPTION_SINGLE_OBJECT]: Add
4096	declarations for dumping functions.
4097
4098	* src/truetype/ttinterp.c (TT_New_Context): Pacify compiler.
4099
4100	* builds/toplevel.mk: Use `freetype.mk's code to compute the version
4101	string.
4102	Don't include a zero patch level in version string.
4103	* builds/freetype.mk: Remove code for computing the version string.
4104
41052015-06-06  Ashish Azad  <ashish.azad@samsung.com>
4106
4107	Fix Savannah bug #45260.
4108
4109	* src/pfr/pfrdrivr.c (pfr_get_kerning): Fix typo.
4110
41112015-06-03  Werner Lemberg  <wl@gnu.org>
4112
4113	[truetype] Fix memory leak.
4114
4115	Problem reported by Grissiom <chaos.proton@gmail.com>; in
4116
4117	  https://lists.nongnu.org/archive/html/freetype/2015-05/msg00013.html
4118
4119	there is an example code to trigger the bug.
4120
4121	* src/truetype/ttobjs.c (tt_size_init_bytecode): Free old `size'
4122	data before allocating again.  Bug most probably introduced four
4123	years ago in version 2.4.3.
4124
41252015-06-02  Werner Lemberg  <wl@gnu.org>
4126
4127	[raster] Add more tracing.
4128
4129	* src/raster/ftraster.c (FT_TRACE7) [_STANDALONE_]: Define.
4130	(Vertical_Sweep_Span, Vertical_Sweep_Drop, Horizontal_Sweep_Span,
4131	Horizontal_Sweep_Drop, Render_Glyph): Add tracing calls.
4132
41332015-06-01  Werner Lemberg  <wl@gnu.org>
4134
4135	[truetype] While tracing opcodes, show code position and stack.
4136
4137	* src/truetype/ttinterp.c: Change all existing TRACE7 calls to
4138	TRACE6.
4139	(opcode_name): Add string lengths.
4140	(TT_RunIns): Implement display of code position and stack.
4141
41422015-05-31  Werner Lemberg  <wl@gnu.org>
4143
4144	[truetype] In GX, make private point numbers work correctly.
4145
4146	This is completely missing in Apple's documentation: If a `gvar'
4147	tuple uses private point numbers (this is, deltas are specified for
4148	some points only), the uncovered points must be interpolated for
4149	this tuple similar to the IUP bytecode instruction.  Examples that
4150	need this functionality are glyphs `Oslash' and `Q' in Skia.ttf.
4151
4152	* src/truetype/ttgxvar.c (tt_delta_shift, tt_delta_interpolate,
4153	tt_handle_deltas): New functions.
4154	(TT_Vary_Get_Glyph_Deltas): Renamed to...
4155	(TT_Vary_Apply_Glyph_Deltas): ... this; it directly processes the
4156	points and does no longer return an array of deltas.
4157	Add tracing information.
4158	Call `tt_handle_deltas' to interpolate missing deltas.
4159	Also fix a minor memory leak in case of error.
4160
4161	* src/truetype/ttgxvar.h: Updated.
4162
4163	* src/truetype/ttgload.c (TT_Process_Simple_Glyph,
4164	load_truetype_glyph): Updated.
4165
41662015-05-31  Werner Lemberg  <wl@gnu.org>
4167
4168	[truetype] In GX, make intermediate tuplets work at extrema.
4169
4170	* src/truetype/ttgxvar.c (ft_var_apply_tuple): Fix range condition.
4171
41722015-05-31  Werner Lemberg  <wl@gnu.org>
4173
4174	[truetype] Add tracing information to GX code.
4175
4176	* src/truetype/ttgxvar.c (ft_var_load_avar, ft_var_load_gvar,
4177	ft_var_apply_tuple, TT_Get_MM_Var, TT_Set_MM_Blend,
4178	TT_Set_Var_Design, tt_face_vary_cvt): Do it.
4179
41802015-05-28  Werner Lemberg  <wl@gnu.org>
4181
4182	* src/tools/apinames.c (names_dump): Fix invalid reference.
4183
4184	Problem reported by Guzman Mosqueda, Jose R
4185	<jose.r.guzman.mosqueda@intel.com>.
4186
41872015-05-24  Werner Lemberg  <wl@gnu.org>
4188
4189	[truetype] Fix commit from 2015-05-22.
4190
4191	* src/truetype/ttgload.c, src/truetype/ttinterp.c: Guard new code
4192	with `TT_CONFIG_OPTION_SUBPIXEL_HINTING'.
4193
4194	Problem reported by Nikolaus Waxweiler <madigens@gmail.com>.
4195
41962015-05-23  Werner Lemberg  <wl@gnu.org>
4197
4198	[truetype] Fix return values of GETINFO bytecode instruction.
4199
4200	* src/truetype/ttinterp.h (TT_ExecContextRec): New fields
4201	`vertical_lcd' and `gray_cleartype'.
4202
4203	* src/truetype/ttgload.c (tt_loader_init): Initialize new fields.
4204	Change `symmetrical smoothing' to TRUE, since FreeType produces
4205	exactly this.
4206
4207	* src/truetype/ttinterp.c (Ins_GETINFO): Fix selector/return bit
4208	values for symmetrical smoothing, namely 11/18.
4209	Handle bits for vertical LCD subpixels (8/15) and Gray ClearType
4210	(12/19).
4211
42122015-05-23  Werner Lemberg  <wl@gnu.org>
4213
4214	[truetype] Minor.
4215
4216	* src/truetype/ttinterp.h (TT_ExecContext):
4217	 s/subpixel/subpixel_hinting.
4218
4219	* src/truetype/ttgload.c, src/truetype/ttgload.h: Updated.
4220
42212015-05-22  Werner Lemberg  <wl@gnu.org>
4222
4223	[truetype] Support selector index 3 of the INSTCTRL instruction.
4224
4225	This flag activates `native ClearType hinting', disabling backward
4226	compatibility mode as described in Greg Hitchcocks whitepaper.  In
4227	other words, it enables unrestricted functionality of all TrueType
4228	instructions in ClearType.
4229
4230	* src/truetype/ttgload.c (tt_get_metrics): Call `sph_set_tweaks'
4231	unconditionally.
4232	(tt_loader_init): Unset `ignore_x_mode' flag if bit 2 of
4233	`GS.instruct_control' is active.
4234
4235	* src/truetype/ttinterp.c (Ins_INSTCTRL): Handle selector index 3.
4236	(Ins_GETINFO): Updated.
4237
4238	* docs/CHANGES: Document it.
4239
42402015-05-20  Werner Lemberg  <wl@gnu.org>
4241
4242	[truetype] Minor.
4243
4244	* src/truetype/ttinterp.h (SetSuperRound): Fix type of `GridPeriod'
4245	argument.
4246
42472015-05-17  Werner Lemberg  <wl@gnu.org>
4248
4249	[truetype] Fix loading of composite glyphs.
4250
4251	* src/truetype/ttgload.c (TT_Load_Composite_Glyph): If the
4252	ARGS_ARE_XY_VALUES flag is not set, handle argument values as
4253	unsigned.  I trust `ttx' (which has exactly such code) that it does
4254	the right thing here...
4255
4256	The reason that noone has ever noticed this bug is probably the fact
4257	that point-aligned subglyphs are rare, as are subglyphs with a
4258	number of points in the range [128;255], which is quite large (or
4259	even in the range [32768;65535], which is extremely unlikely).
4260
42612015-05-12  Chris Liddell  <chris.liddell@artifex.com>
4262
4263	[cff] Make the `*curveto' operators more tolerant.
4264
4265	* src/cff/cf2intrp.c (cf2_interpT2CharString): The opcodes
4266	`vvcurveto', `hhcurveto', `vhcurveto', and `hvcurveto' all iterate,
4267	pulling values off the stack until the stack is exhausted.
4268	Implicitly the stack must be a multiple (or for subtly different
4269	behaviour) a multiple plus a specific number of extra values deep.
4270	If that's not the case, enforce it (as the old code did).
4271
42722015-05-12  Chris Liddell  <chris.liddell@artifex.com>
4273
4274	[cff] fix incremental interface with new cff code.
4275
4276	* src/cff/cf2ft.c (cf2_getSeacComponent): When using the incremental
4277	interface to retrieve glyph data for a SEAC, it be left to the
4278	incremental interface callback to apply the encoding to raw
4279	character index (as it was in the previous code).
4280
42812015-04-29  Alexei Podtelezhnikov  <apodtele@gmail.com>
4282
4283	[autofit] Speed up IUP.
4284
4285	* src/autofit/afhints.c (af_iup_interp): Separate trivial snapping to
4286	the same position from true interpolation, use `scale' to reduce
4287	divisions.
4288
42892015-04-28  Werner Lemberg  <wl@gnu.org>
4290
4291	[cff] Use `name' table for PS name if we have a SFNT-CFF.
4292
4293	This follows the OpenType 1.7 specification.  See
4294
4295	  https://tug.org/pipermail/tex-live/2015-April/036634.html
4296
4297	for a discussion.
4298
4299	* src/cff/cffdrivr.c (cff_get_ps_name): Use the `sfnt' service if we
4300	have an SFNT.
4301
43022015-04-27  Alexei Podtelezhnikov  <apodtele@gmail.com>
4303
4304	[truetype] Speed up IUP.
4305
4306	* src/truetype/ttinterp.c (_iup_worker_interpolate): Separate trivial
4307	snapping to the same position from true interpolation.
4308
43092015-04-21  Werner Lemberg  <wl@gnu.org>
4310
4311	[autofit] By default, enable warping code but switch off warping.
4312
4313	Suggested by Behdad.
4314
4315	* include/config/ftoption.h: Define AF_CONFIG_OPTION_USE_WARPER.
4316
4317	* src/autofit/afmodule.c (af_autofitter_init): Initialize `warping'
4318	with `false'.
4319
43202015-04-21  Werner Lemberg  <wl@gnu.org>
4321
4322	* docs/CHANGES: Updated.
4323
43242015-04-21  Werner Lemberg  <wl@gnu.org>
4325
4326	[autofit] Introduce `warping' property.
4327
4328	This code replaces the debugging hook from the previous commit with
4329	a better, more generic solution.
4330
4331	* include/ftautoh.h: Document it.
4332
4333	* src/autofit/afmodule.h (AF_ModuleRec)
4334	[AF_CONFIG_OPTION_USE_WARPER]: Add `warping' field.
4335
4336	* src/autofit/afmodule.c (_af_debug_disable_warper): Remove.
4337	(af_property_set, af_property_get, af_autofitter_init)
4338	[AF_CONFIG_OPTION_USE_WARPER]: Handle `warping' option.
4339
4340	* src/autofit/afhints.h (AF_HINTS_DO_WARP): Remove use of the no
4341	longer existing `_af_debug_disable_warper'.
4342
4343	* src/autofit/afcjk.c (af_cjk_hints_init), src/autofit/aflatin.c
4344	(af_latin_hints_init), src/autofit/aflatin2.c (af_latin2_hints_init)
4345	[AF_CONFIG_OPTION_USE_WARPER]: Add `AF_SCALER_FLAG_NO_WARPER' to the
4346	scaler flags if warping is off.
4347
4348	* src/autofit/aftypes.h: Updated.
4349
43502015-04-16  Werner Lemberg  <wl@gnu.org>
4351
4352	[autofit] Add debugging hook to disable warper.
4353
4354	* src/autofit/afmodule.c (_af_debug_disable_warper)
4355	[FT_DEBUG_AUTOFIT]: New global variable.
4356
4357	* src/autofit/aftypes.h: Updated.
4358	(AF_SCALER_FLAG_NO_WARPER): New macro (not actively used yet).
4359
4360	* src/autofit/afhints.h (AF_HINTS_DO_WARP): New macro.
4361
4362	* src/autofit/aflatin.c (af_latin_hints_apply)
4363	[AF_CONFIG_OPTION_USE_WARPER]: Use `AF_HINTS_DO_WARP' to control use
4364	of warper.
4365
4366	* src/autofit/afcjk.c (af_cjk_hints_init, af_cjk_hints_apply)
4367	[AF_CONFIG_OPTION_USE_WARPER]: Synchronize with `aflatin.c'.
4368
4369	* src/autofit/aflatin2.c (af_latin2_hints_apply)
4370	[AF_CONFIG_OPTION_USE_WARPER]: Synchronize with `aflatin.c'.
4371
43722015-04-10  Werner Lemberg  <wl@gnu.org>
4373
4374	[cff] Update advance width handling to OpenType 1.7.
4375
4376	Problem reported by Behdad.
4377
4378	* src/cff/cffdrivr.c (cff_get_advances): Handle SFNT case
4379	separately.
4380
4381	* src/cff/cffgload.c (cff_slot_load): Use advance width and side
4382	bearing values from `hmtx' table if present.
4383
43842015-04-03  Alexei Podtelezhnikov  <apodtele@gmail.com>
4385
4386	* src/autofit/afhints.c (af_glyph_hints_reload): Use do-while loop.
4387
43882015-04-02  Alexei Podtelezhnikov  <apodtele@gmail.com>
4389
4390	* src/autofit/aflatin.c (af_latin_hint_edges): Reduce logic.
4391
43922015-04-01  Alexei Podtelezhnikov  <apodtele@gmail.com>
4393
4394	[autofit] Finish the thought.
4395
4396	* src/autofit/afhints.c (af_direction_compute): make sure the long arm
4397	is never negative so that its `FT_ABS' is not necessary.
4398
43992015-04-01  Werner Lemberg  <wl@gnu.org>
4400
4401	[autofit] Call dumper functions for tracing.
4402
4403	* src/autofit/afcjk.c (af_cjk_hints_apply): Remove dead code.
4404	* src/autofit/afhints.c (af_glyph_hints_dump_points): Minor
4405	improvement.
4406	* src/autofit/afmodule.c (af_autofitter_load_glyph): Implement it.
4407
44082015-04-01  Werner Lemberg  <wl@gnu.org>
4409
4410	[autofit] Make debugging stuff work again.
4411
4412	The interface to ftgrid was broken in the series of commits starting
4413	with
4414
4415	  [autofit] Allocate AF_Loader on the stack instead of AF_Module.
4416
4417	from 2015-01-14.
4418
4419	* src/autofit/afmodule.c (_af_debug_hints_rec) [FT_DEBUG_AUTOFIT]:
4420	Use a global AF_GlyphHintsRec object for debugging.
4421	(af_autofitter_done, af_autofitter_load_glyph): Updated.
4422
4423	* src/autofit/afloader.c (af_loader_init, af_loader_done): Updated.
4424
44252015-04-01  Werner Lemberg  <wl@gnu.org>
4426
4427	* src/autofit/afhints.c (af_glyph_hints_done): Fix minor thinko.
4428
44292015-03-29  Werner Lemberg  <wl@gnu.org>
4430
4431	[cff] Fix Savannah bug #44629.
4432
4433	* src/cff/cf2font.h (CF2_MAX_SUBR), src/cff/cffgload.h
4434	(CFF_MAX_SUBRS_CALLS): Set to 16.
4435
44362015-03-29  Werner Lemberg  <wl@gnu.org>
4437
4438	[type1, truetype] Make the MM API more flexible w.r.t. `num_coords'.
4439
4440	This commit allows `num_coords' to be larger or smaller than the
4441	number of available axes while selecting a design instance, either
4442	ignoring excess data or using defaults if data is missing.
4443
4444	* src/truetype/ttgxvar.c (TT_Set_MM_Blend, TT_Set_Var_Design):
4445	Implement it.
4446
4447	* src/type1/t1load.c (T1_Set_MM_Blend, T1_Set_MM_Design,
4448	T1_Set_Var_Design): Ditto.
4449
44502015-03-29  Werner Lemberg  <wl@gnu.org>
4451
4452	[type1] Minor.
4453
4454	* src/type1/t1load.c (T1_Set_MM_Blend, T1_Set_MM_Design): Use
4455	FT_THROW.
4456	(T1_Set_Var_Design): Use T1_MAX_MM_AXIS and FT_THROW.
4457
44582015-03-27  Werner Lemberg  <wl@gnu.org>
4459
4460	[cff] Trace charstring nesting levels.
4461
4462	* src/cff/cf2intrp.c (cf2_interpT2CharString) <cf2_cmdCALLGSUBR,
4463	cf2_cmdCALLSUBR, cf2_cmdRETURN>: Implement it.
4464
4465	* src/cff/cffgload.c (cff_decoder_parse_charstrings)
4466	<cff_op_callsubr, cff_op_callgsubr, cff_op_return>: Ditto.
4467
44682015-03-21  Alexei Podtelezhnikov  <apodtele@gmail.com>
4469
4470	[base] Optimize `FT_Angle_Diff'.
4471
4472	Under normal circumstances we are usually close to the desired range
4473	of angle values, so that the remainder is not really necessary.
4474
4475	* src/base/fttrigon.c (FT_Angle_Diff): Use loops instead of remainder.
4476
4477	* src/autofit/aftypes.h (AF_ANGLE_DIFF): Ditto in the unused macro.
4478
44792015-03-21  Werner Lemberg  <wl@gnu.org>
4480
4481	[truetype] Improve `gvar' handling.
4482
4483	* src/truetype/ttgxvar.c (ft_var_readpackedpoints): Correctly handle
4484	single-element runs.  Cf. glyph `Q' in Skia.ttf with weights larger
4485	than the default.
4486
44872015-03-20  Alexei Podtelezhnikov  <apodtele@gmail.com>
4488
4489	* src/base/fttrigon.c (FT_Vector_Rotate): Minor refactoring.
4490
44912015-03-17  Alexei Podtelezhnikov  <apodtele@gmail.com>
4492
4493	Fix Savannah bug #44412 (part 2).
4494
4495	* src/base/fttrigon.c (FT_Sin, FT_Cos, FT_Tan): Call `FT_Vector_Unit'.
4496
44972015-03-11  Werner Lemberg  <wl@gnu.org>
4498
4499	[autofit] Add support for Arabic script.
4500
4501	Thanks to Titus Nemeth <tn@tntypography.eu> for guidance!
4502
4503	* src/autofit/afblue.dat: Add blue zone data for Arabic.
4504
4505	* src/autofit/afblue.c, src/autofit/afblue.h: Regenerated.
4506
4507	* src/autofit/afscript.h: Add Arabic standard characters.
4508
4509	* src/autofit/afranges.c: Add Arabic data.
4510
4511	* src/autofit/afstyles.h: Add Arabic data.
4512
4513	* docs/CHANGES: Document it.
4514
45152015-03-11  Werner Lemberg  <wl@gnu.org>
4516
4517	Rename `svxf86nm.h' to `svfntfmt.h'; update related symbols.
4518
4519	* include/internal/ftserv.h (FT_SERVICE_XFREE86_NAME_H): Renamed
4520	to...
4521	(FT_SERVICE_FONT_FORMAT_H): This.
4522
4523	* include/internal/services/svfntfmt.h (FT_XF86_FORMAT_*): Renamed
4524	to ...
4525	(FT_FONT_FORMAT_*): This.
4526
4527	src/base/ftfntfmt.c, src/bdf/bdfdrivr.c, src/cff/cffdrivr.c,
4528	src/cid/cidriver.c, src/pcf/pcfdrivr.c, src/pfr/pfrdrivr.c,
4529	src/truetype/ttdriver.c, src/type1/t1driver.c,
4530	src/type42/t42drivr.c, src/winfonts/winfnt.c: Updated.
4531
45322015-03-11  Werner Lemberg  <wl@gnu.org>
4533
4534	[base] Rename `FT_XFREE86_H' to `FT_FONT_FORMATS_H'.
4535
4536	* include/config/ftheader.h: Implement it.
4537	* src/base/ftfntfmt.c, docs/CHANGES: Updated.
4538
45392015-03-11  Werner Lemberg  <wl@gnu.org>
4540
4541	[base] Rename `FT_Get_X11_Font_Format' to `FT_Get_Font_Format'.
4542
4543	* include/ftfntfmt.h, src/base/ftfntfmt.c: Implement it.
4544
4545	* docs/CHANGES: Updated.
4546
45472015-03-11  Werner Lemberg  <wl@gnu.org>
4548
4549	Fix automatic copyright updating.
4550
4551	* src/tools/update-copyright: Make scanning of `no-copyright'
4552	actually work.
4553
4554	* src/tools/no-copyright: Don't include README in general.
4555
45562015-03-11  Werner Lemberg  <wl@gnu.org>
4557
4558	Rename `ftxf86.[ch]' to `ftfntfmt.[ch]'.
4559
4560	CMakeLists.txt, builds/amiga/makefile, builds/amiga/makefile.os4,
4561	builds/amiga/smakefile, builds/mac/FreeType.m68k_cfm.make.txt,
4562	builds/mac/FreeType.m68k_far.make.txt,
4563	builds/mac/FreeType.ppc_carbon.make.txt,
4564	builds/mac/FreeType.ppc_classic.make.txt, builds/symbian/bld.inf,
4565	builds/symbian/freetype.mmp, builds/wince/vc2005-ce/freetype.vcproj,
4566	builds/wince/vc2008-ce/freetype.vcproj,
4567	builds/windows/vc2005/freetype.vcproj,
4568	builds/windows/vc2008/freetype.vcproj,
4569	builds/windows/vc2010/freetype.vcxproj,
4570	builds/windows/vc2010/freetype.vcxproj.filters,
4571	builds/windows/visualc/freetype.dsp,
4572	builds/windows/visualc/freetype.vcproj,
4573	builds/windows/visualce/freetype.dsp,
4574	builds/windows/visualce/freetype.vcproj, docs/INSTALL.ANY,
4575	include/config/ftheader.h, include/ftfntfmt.h, modules.cfg,
4576	src/base/ftfntfmt.c, vms_make.com: Updated.
4577
45782015-03-10  Alexei Podtelezhnikov  <apodtele@gmail.com>
4579
4580	Fix Savannah bug #44412 (part 1).
4581
4582	* src/base/ftstroke.c (ft_stroker_inside): Handle near U-turns.
4583
45842015-03-10  Werner Lemberg  <wl@gnu.org>
4585
4586	[base] Rename `FT_Bitmap_New' to `FT_Bitmap_Init'.
4587
4588	* include/ftbitmap.h, src/base/ftbitmap.c: Implement it.
4589	Update all callers.
4590
4591	* docs/CHANGES: Updated.
4592
45932015-03-06  Werner Lemberg  <wl@gnu.org>
4594
4595	* src/sfnt/ttload.c (tt_face_load_font_dir): Fix compiler warning.
4596
4597	Found by Alexei.
4598
45992015-03-05  Alexei Podtelezhnikov  <apodtele@gmail.com>
4600
4601	* src/base/ftstroke.c: Simplify.
4602
46032015-03-04  Werner Lemberg  <wl@gnu.org>
4604
4605	[truetype] Some fixes and code refactoring in `ttgxvar.c'.
4606
4607	* src/truetype/ttgxvar.c (ft_var_readpackedpoints): Fix return value
4608	of `point_cnt' if two bytes are read.
4609	Use a more vertical coding style.
4610	(ft_var_readpackeddeltas): Use FT_UInt for `delta_cnt' parameter.
4611	Use a more vertical coding style.
4612
46132015-03-03  Werner Lemberg  <wl@gnu.org>
4614
4615	[autofit] Fix Savannah bug #44241.
4616
4617	* src/autofit/aflatin.c (af_latin_metrics_init_blues): Reject glyphs
4618	with less than 3 points.
4619
46202015-03-02  Werner Lemberg  <wl@gnu.org>
4621
4622	Simplify `TYPEOF' macro.
4623
4624	No need for two arguments.
4625
4626	* include/config/ftconfig.h, builds/unix/ftconfig.in,
4627	builds/vms/ftconfig.h (TYPEOF): Updated.
4628
4629	* include/internal/ftobjs.h (FT_PAD_FLOOR, FT_PIX_FLOOR),
4630	src/autofit/afwarp.h (AF_WARPER_FLOOR): Updated.
4631
46322015-03-01  Werner Lemberg  <wl@gnu.org>
4633
4634	Various compiler warning fixes for `make multi'.
4635
4636	* src/autofit/afcjk.c (af_cjk_hints_compute_blue_edges),
4637	src/autofit/aflatin.c (af_latin_hint_compute_blue_edges,
4638	af_latin_hint_edges), src/autofit/aflatin2.c
4639	(af_latin2_hints_compute_blue_edges, af_latin2_hint_edges): Declare
4640	as `static'.
4641
4642	* src/cache/ftccmap.c (FTC_CMAP_QUERY_HASH, FTC_CMAP_NODE_HASH):
4643	Removed.  Unused.
4644	* src/cache/ftcimage.c: Include FT_INTERNAL_OBJECTS_H.
4645	* src/cache/ftcmanag.c (FTC_LRU_GET_MANAGER): Removed.  Unused.
4646
4647	* src/cff/cf2intrp.c: Include `cf2intrp.h'.
4648	* src/cff/cffdrivr.c (PAIR_TAG): Removed.  Unused.
4649
4650	* src/gzip/ftgzip.c (NO_DUMMY_DECL): Removed.  Unused.
4651
4652	* src/psaux/afmparse.c (afm_parser_read_int): Declare as `static'.
4653
4654	* src/pshinter/pshalgo.c (STRONGER, PSH_ZONE_MIN, PSH_ZONE_MAX):
4655	Removed.  Unused.
4656
4657	* src/raster/ftraster.c (Render_Glyph): Declare as `static'.
4658
4659	* src/sfnt/ttpost.c (load_format_20): Fix signedness warning.
4660
4661	* src/truetype/ttdriver.c (PAIR_TAG): Removed.  Unused.
4662	* src/truetype/ttsubpix.c (is_member_of_family_class,
4663	is_member_of_style_class): Declare as `static'.
4664
4665	* src/type1/t1gload.c (T1_Parse_Glyph_And_Get_Char_String): Declare
4666	as `static'.
4667	* src/type1/t1load.c (mm_axis_unmap, mm_weights_unmap): Declare as
4668	`static'.
4669	(T1_FIELD_COUNT): Removed.  Unused.
4670	* src/type1/t1parse.h (T1_Done_Table): Removed.  Unused.
4671
4672	* src/type42/t42parse.c (T1_Done_Table): Removed.  Unused.
4673
46742015-02-25  Werner Lemberg  <wl@gnu.org>
4675
4676	[psaux] Signedness fixes.
4677
4678	* include/internal/psaux.h, src/psaux/afmparse.c,
4679	src/psaux/afmparse.h, src/psaux/psconv.c, src/psaux/psobjs.c,
4680	src/psaux/t1cmap.c, src/psaux/t1decode.c: Apply.
4681
46822015-02-25  Werner Lemberg  <wl@gnu.org>
4683
4684	[otvalid] Signedness fixes.
4685
4686	* src/otvalid/otvcommn.c, src/otvalid/otvgdef.c,
4687	src/otvalid/otvgpos.c, src/otvalid/otvgsub.c, src/otvalid/otvmath.c:
4688	Apply.
4689
46902015-02-25  Werner Lemberg  <wl@gnu.org>
4691
4692	* src/bzip2/ftbzip2.c (ft_bzip2_alloc): Signedness fix.
4693
46942015-02-25  Werner Lemberg  <wl@gnu.org>
4695
4696	[lzw] Signedness fixes.
4697
4698	* src/lzw/ftzopen.c, src/lzw/ftzopen.h: Apply.
4699
47002015-02-25  Werner Lemberg  <wl@gnu.org>
4701
4702	[gxvalid] Signedness fixes.
4703
4704	* src/gxvalid/gxvbsln.c, src/gxvalid/gxvcommn.c,
4705	src/gxvalid/gxvcommn.h, src/gxvalid/gxvjust.c,
4706	src/gxvalid/gxvkern.c, src/gxvalid/gxvlcar.c, src/gxvalid/gxvmort.c,
4707	src/gxvalid/gxvmort1.c, src/gxvalid/gxvmort2.c,
4708	src/gxvalid/gxvmorx.c, src/gxvalid/gxvmorx1.c,
4709	src/gxvalid/gxvmorx2.c, src/gxvalid/gxvopbd.c,
4710	src/gxvalid/gxvprop.c, src/gxvalid/gxvtrak.c: Apply.
4711
47122015-02-25  Werner Lemberg  <wl@gnu.org>
4713
4714	[cache] Signedness fixes.
4715
4716	* src/cache/ftcbasic.c, src/cache/ftccmap.c, src/cache/ftcimage.c,
4717	src/cache/ftcmanag.c, src/cache/ftcsbits.c: Apply.
4718
47192015-02-25  Werner Lemberg  <wl@gnu.org>
4720
4721	Change dimension fields in `FTC_ImageTypeRec' to unsigned type.
4722
4723	This doesn't break ABI.
4724
4725	* include/ftcache.h (FTC_ImageTypeRec): Use unsigned types for
4726	`width' and `height'.
4727
4728	* docs/CHANGES: Document it.
4729
47302015-02-25  Werner Lemberg  <wl@gnu.org>
4731
4732	[cache] Don't use `labs'.
4733
4734	This is the only place in FreeType where this function was used.
4735
4736	* include/config/ftstdlib.h (ft_labs): Remove.
4737
4738	* src/cache/ftcimage.c (ftc_inode_weight): Replace `ft_labs' with
4739	`FT_ABS'.
4740
47412015-02-23  Werner Lemberg  <wl@gnu.org>
4742
4743	[cache] Replace `FT_PtrDist' with `FT_Offset'.
4744
4745	* src/cache/ftccache.h (FTC_NodeRec): `FT_Offset' (a.k.a. `size_t')
4746	is a better choice for `hash' to hold a pointer than `FT_PtrDist'
4747	(a.k.a. `ptrdiff_t'), especially since the latter is signed,
4748	causing zillions of signedness warnings.  [Note that `hash' was of
4749	type `FT_UInt32' before the change to `FT_PtrDist'.]
4750	Update all users.
4751
4752	* src/cache/ftcbasic.c, src/cache/ftccache.c, src/cache/ftccmap.c,
4753	src/cache/ftcglyph.c, src/cache/ftcglyph.h: Updated.
4754
47552015-02-23  Werner Lemberg  <wl@gnu.org>
4756
4757	[smooth, raster] Re-enable standalone compilation.
4758
4759	* src/raster/ftraster.c (FT_RENDER_POOL_SIZE, FT_MAX)
4760	[_STANDALONE_]: Define macros.
4761
4762	* src/smooth/ftgrays.c (FT_RENDER_POOL_SIZE, FT_MAX, FT_ABS,
4763	FT_HYPOT) [_STANDALONE_]: Define macros.
4764
47652015-02-22  Werner Lemberg  <wl@gnu.org>
4766
4767	[smooth] Signedness fixes.
4768
4769	* src/smooth/ftgrays.c, src/smooth/ftsmooth.c: Apply.
4770
47712015-02-22  Werner Lemberg  <wl@gnu.org>
4772
4773	* src/raster/ftraster.c: Use the file's typedefs everywhere.
4774
47752015-02-22  Werner Lemberg  <wl@gnu.org>
4776
4777	* src/sfnt/ttpost.c (load_format_20): Fix error tracing message.
4778
4779	Bug introduced 6 commits earlier.
4780
47812015-02-22  Werner Lemberg  <wl@gnu.org>
4782
4783	[pshinter] Fix thinko.
4784
4785	* src/pshinter/pshalgo.c (psh_glyph_find_strong_points): Correctly
4786	check `count'.
4787	Bug introduced two commits earlier.
4788
47892015-02-22  Werner Lemberg  <wl@gnu.org>
4790
4791	[raster] Signedness fixes.
4792
4793	* src/raster/ftraster.c, src/raster/ftrend1.c: Apply.
4794
47952015-02-22  Werner Lemberg  <wl@gnu.org>
4796
4797	[pshinter] Signedness fixes.
4798
4799	* src/pshinter/pshalgo.c, src/pshinter/pshglob.c,
4800	src/pshinter/pshrec.c: Apply.
4801
48022015-02-22  Werner Lemberg  <wl@gnu.org>
4803
4804	[pshinter] Use macros for (unsigned) flags, not enumerations.
4805
4806	* src/pshinter/pshalgo.h (PSH_Hint_Flags): Replace with macros.
4807	Updated.
4808	* src/pshinter/pshrec.h (PS_Hint_Flags): Replace with macros.
4809
48102015-02-22  Werner Lemberg  <wl@gnu.org>
4811
4812	* src/pshinter/pshrec.c: Simplify.
4813	(ps_hints_open, ps_hints_stem): Remove switch statement.
4814
48152015-02-22  Werner Lemberg  <wl@gnu.org>
4816
4817	[sfnt] Signedness fixes.
4818
4819	* src/sfnt/pngshim.c, src/sfnt/sfobjs.c, src/sfnt/ttcmap.c,
4820	src/sfnt/ttkern.c, src/sfnt/ttload.c, src/sfnt/ttpost.c,
4821	src/sfnt/ttsbit.c: Apply.
4822	* src/sfnt/sfdriver.c: Apply.
4823	(sfnt_get_ps_name): Simplify.
4824
48252015-02-22  Werner Lemberg  <wl@gnu.org>
4826
4827	[bdf] Signedness fixes.
4828
4829	* src/bdf/bdf.h, src/bdf/bdfdrivr.c, src/bdf/bdfdrivr.h,
4830	src/bdf/bdflib.c: Apply.
4831
48322015-02-22  Werner Lemberg  <wl@gnu.org>
4833
4834	* src/bdf/bdflib.c (_bdf_atous): New function.
4835	(_bdf_parse_glyphs, _bdf_parse_start): Use it.
4836
48372015-02-22  Werner Lemberg  <wl@gnu.org>
4838
4839	[pcf] Signedness fixes.
4840
4841	* src/pcf/pcf.h, src/pcf/pcfdrivr.c: Apply.
4842	* src/pcf/pcfread.c: Apply.
4843	(pcf_get_encodings): Ignore invalid negative encoding offsets.
4844
48452015-02-21  Werner Lemberg  <wl@gnu.org>
4846
4847	* src/winfonts/winfnt.c: Signedness fixes.
4848
48492015-02-21  Werner Lemberg  <wl@gnu.org>
4850
4851	[type42] Signedness fixes.
4852
4853	* src/type42/t42parse.c, src/type42/t42parse.h,
4854	src/type42/t42types.h: Apply.
4855
48562015-02-21  Werner Lemberg  <wl@gnu.org>
4857
4858	[pfr] Signedness fixes.
4859
4860	* src/pfr/pfrdrivr.c, src/pfr/pfrgload.c, src/pfr/pfrload.c,
4861	src/pfr/pfrload.h, src/pfr/pfrobjs.c, src/pfr/pfrsbit.c,
4862	src/pfr/pfrtypes.h: Apply.
4863
48642015-02-21  Werner Lemberg  <wl@gnu.org>
4865
4866	[cff] Minor signedness fixes related to last commit.
4867
4868	* src/cff/cf2ft.c, src/cff/cf2intrp.c, src/cff/cffgload.c: Apply.
4869
48702015-02-20  Werner Lemberg  <wl@gnu.org>
4871
4872	[cff] Thinkos in bias handling.
4873
4874	Only the final result is always positive.
4875
4876	Bug introduced three commits earlier.
4877
4878	* src/cff/cffgload.c, src/cff/cffgload.h: Apply.
4879
48802015-02-20  Werner Lemberg  <wl@gnu.org>
4881
4882	[cid] Fix signedness issues and emit some better error codes.
4883
4884	* src/cid/cidgload.c, src/cid/cidload.h, src/cid/cidobjs.c,
4885	src/cid/cidparse.h: Apply.
4886	* src/cid/cidload.c: Apply.
4887	(parse_fd_array): Reject negative values for number of dictionaries.
4888	* src/cid/cidparse.c: Apply.
4889	(cid_parser_new): Reject negative values for hex data length.
4890
48912015-02-20  Werner Lemberg  <wl@gnu.org>
4892
4893	[cff] Signedness fixes for new engine.
4894
4895	* src/cff/cf2arrst.c, src/cff/cf2fixed.h, src/cff/cf2ft.c,
4896	src/cff/cf2ft.h, src/cff/cf2hints.c, src/cff/cf2intrp.c: Apply.
4897
48982015-02-20  Werner Lemberg  <wl@gnu.org>
4899
4900	[cff] Signedness fixes for basic infrastructure and old engine.
4901
4902	* include/internal/pshints.h, src/cff/cffdrivr.c,
4903	src/cff/cffgload.c, src/cff/cffgload.h, src/cff/cffload.c,
4904	src/cff/cffobjs.c, src/cff/cffparse.c, src/pshinter/pshrec.c: Apply.
4905
49062015-02-19  Werner Lemberg  <wl@gnu.org>
4907
4908	* src/truetype/ttgxvar.c (TT_Get_MM_Var): Ignore `countSizePairs'.
4909
4910	This is hard-coded to value 2 in `fvar' version 1.0 (and no newer
4911	version exists), but some fonts set it incorrectly.
4912
4913	Problem reported by Adam Twardoch <adam@fontlab.com>.
4914
49152015-02-19  Werner Lemberg  <wl@gnu.org>
4916
4917	[cff] Emit better error code for invalid private dict size.
4918
4919	* src/cff/cffparse.c (cff_parse_private_dict): Reject negative
4920	values for size and offset.
4921
49222015-02-19  Werner Lemberg  <wl@gnu.org>
4923
4924	[autofit] Fix signedness issues.
4925
4926	* src/autofit/afangles.c, src/autofit/afcjk.c,
4927	src/autofit/afglobal.c, src/autofit/afhints.c,
4928	src/autofit/aflatin.c, src/autofit/aflatin2.c, src/autofit/afwarp.c,
4929	src/autofit/hbshim.c: Apply.
4930
49312015-02-19  Werner Lemberg  <wl@gnu.org>
4932
4933	[autofit] Use macros for (unsigned) flags, not enumerations.
4934
4935	This harmonizes with other code in FreeType (and reduces the number
4936	of necessary casts to avoid compiler warnings).
4937
4938	* src/autofit/afblue.hin: Make flag macros unsigned.
4939	* src/autofit/afblue.h: Regenerated.
4940
4941	* src/autofit/afcjk.h: Replace flag enumeration with macros.
4942	* src/autofit/afcjk.c: Updated.
4943
4944	* src/autofit/afhints.h (AF_Flags, AF_Edge_Flags): Replace with
4945	macros.
4946	* src/autofit/afhints.c: Updated.
4947
4948	* src/autofit/aflatin.h: Replace flag enumerations with macros.
4949	* src/autofit/aflatin.c, src/autofit/aflatin2.c: Updated.
4950
4951	* src/autofit/aftypes.h (AF_ScalerFlags): Replace with macros.
4952
49532015-02-18  Werner Lemberg  <wl@gnu.org>
4954
4955	[type1] Fix signedness issues.
4956
4957	* include/internal/psaux.h, include/internal/t1types.h,
4958	src/psaux/psobjs.c, src/psaux/psobjs.h, src/psaux/t1decode.c,
4959	src/type1/t1gload.c, src/type1/t1load.c, src/type1/t1parse.c: Apply.
4960
49612015-02-18  Werner Lemberg  <wl@gnu.org>
4962
4963	[psaux, type1] Fix minor AFM issues.
4964
4965	* include/internal/t1types.h (AFM_KernPairRec): Make indices
4966	unsigned.
4967	Update users.
4968	(AFM_FontInfoRec): Make element counters unsigned.
4969	Update users.
4970	* src/psaux/afmparse.h (AFM_ValueRec): Add union member for unsigned
4971	int.
4972
4973	* src/psaux/afmparse.c (afm_parse_track_kern, afm_parse_kern_pairs):
4974	Reject negative values for number of kerning elements.
4975
4976	* src/type1/t1afm.c, src/tools/test_afm.c: Updated.
4977
49782015-02-18  Werner Lemberg  <wl@gnu.org>
4979
4980	Don't use `FT_PtrDist' for lengths.
4981
4982	Use FT_UInt instead.
4983
4984	* include/internal/psaux.h (PS_Table_FuncsRec, PS_TableRec,
4985	T1_DecoderRec): Do it.
4986
4987	* include/internal/t1types.h (T1_FontRec): Ditto.
4988
4989	* src/cid/cidload.c (cid_parse_dict): Updated.
4990	* src/pfr/pfrload.c (pfr_extra_item_load_font_id): Ditto.
4991	* src/psaux/psobjs.c (ps_table_add), src/psaux/psobjs.h: Ditto.
4992	* src/type1/t1load.c (parse_blend_axis_types, parse_encoding,
4993	parse_charstrings, parse_dict): Ditto.
4994	* src/type42/t42parse.c (t42_parse_encoding, t42_parse_charstrings,
4995	t42_parse_dict): Ditto.
4996
49972015-02-18  Werner Lemberg  <wl@gnu.org>
4998
4999	* src/type1/t1driver.c (t1_ps_get_font_value): Clean up.
5000	This handles negative values better, avoiding many casts.
5001
50022015-02-17  Werner Lemberg  <wl@gnu.org>
5003
5004	[base] Fix Savannah bug #44284.
5005
5006	* src/base/ftcalc.c (FT_MulFix): Typos.
5007
50082015-02-17  Werner Lemberg  <wl@gnu.org>
5009
5010	[truetype] Finish compiler warning fixes for signedness issues.
5011
5012	* src/truetype/ttgxvar.c, src/truetype/ttsubpix.c,
5013	src/truetype/ttsubpix.h: Apply.
5014
50152015-02-17  Werner Lemberg  <wl@gnu.org>
5016
5017	* src/truetype/ttsubpix.c: Adding missing `static' keywords.
5018
50192015-02-17  Werner Lemberg  <wl@gnu.org>
5020
5021	[truetype] More signedness fixes.
5022
5023	* include/internal/tttypes.h, src/truetype/ttinterp.h,
5024	src/truetype/ttobjs.h, src/truetype/ttinterp.c,
5025	src/truetype/ttobjs.c: Apply.
5026
50272015-02-17  Werner Lemberg  <wl@gnu.org>
5028
5029	[truetype] Various signedness fixes.
5030
5031	* include/internal/ftgloadr.h, src/truetype/ttpload.c: Apply.
5032
5033	* src/truetype/ttgload.c: Apply.
5034	(TT_Get_VMetrics): Protect against invalid ascenders and descenders
5035	while constructing advance height.
5036
50372015-02-16  Werner Lemberg  <wl@gnu.org>
5038
5039	[base] Finish compiler warning fixes for signedness issues.
5040
5041	* src/base/ftglyph.c, src/base/ftlcdfil.c, src/base/ftstroke.c:
5042	Apply.
5043
50442015-02-16  Werner Lemberg  <wl@gnu.org>
5045
5046	* include/tttables.h (TT_OS2): `fsType' must be FT_UShort.
5047
50482015-02-16  Werner Lemberg  <wl@gnu.org>
5049
5050	More minor signedness warning fixes.
5051
5052	* src/base/ftbbox.c, src/base/ftbitmap.c, src/base/fttrigon.c,
5053	src/base/ftutil.c: Apply.
5054
50552015-02-16  Werner Lemberg  <wl@gnu.org>
5056
5057	Next round of minor compiler warning fixes.
5058
5059	* include/internal/ftrfork.h (FT_RFork_Ref): Change `offset' member
5060	type to `FT_Long'.
5061	(CONST_FT_RFORK_RULE_ARRAY_BEGIN): Add `static' keyword.
5062
5063	* include/internal/ftstream.h (FT_Stream_Pos): Return `FT_ULong'.
5064
5065	* src/base/ftoutln.c, src/base/ftrfork.c, src/base/ftstream.c:
5066	Signedness fixes.
5067
50682015-02-16  Werner Lemberg  <wl@gnu.org>
5069
5070	Various minor signedness fixes.
5071
5072	* include/ftadvanc.h, include/internal/ftobjs.h,
5073	src/base/ftgloadr.c, src/base/ftobjs.c: Apply.
5074
50752015-02-16  Werner Lemberg  <wl@gnu.org>
5076
5077	New `TYPEOF' macro.
5078
5079	This helps suppress signedness warnings, avoiding issues with
5080	implicit conversion changes.
5081
5082	* include/config/ftconfig.h, builds/unix/ftconfig.in,
5083	builds/vms/ftconfig.h (TYPEOF): Define.
5084
5085	* include/internal/ftobjs.h (FT_PAD_FLOOR, FT_PIX_FLOOR),
5086	src/autofit/afwarp.h (AF_WARPER_FLOOR): Use it.
5087
50882015-02-16  Werner Lemberg  <wl@gnu.org>
5089
5090	* src/base/ftsystem.c: Use casts in standard C function wrappers.
5091	(ft_alloc, ft_realloc, ft_ansi_stream_io, FT_Stream_Open): Do it.
5092
50932015-02-16  Werner Lemberg  <wl@gnu.org>
5094
5095	Fix Savannah bug #44261.
5096
5097	* builds/unix/detect.mk (setup) [unix]: Set `CONFIG_SHELL' in the
5098	environment also while calling the configure script.
5099
51002015-02-16  Werner Lemberg  <wl@gnu.org>
5101
5102	* include/internal/ftmemory.h: Add some `FT_Offset' casts.
5103	(FT_MEM_SET, FT_MEM_COPY, FT_MEM_MOVE, FT_ARRAY_ZERO, FT_ARRAY_COPY,
5104	FT_MEM_MOVE): Do it.
5105
51062015-02-15  Werner Lemberg  <wl@gnu.org>
5107
5108	[base] Clean up signedness issues in `ftdbgmem.c'.
5109
5110	Also fix other minor issues.
5111
5112	* src/base/ftdbgmem.c (FT_MemTableRec): Replace all FT_ULong types
5113	with FT_Long for consistency.
5114	(ft_mem_primes): Change type to `FT_Int'.
5115	(ft_mem_closest_prime, ft_mem_table_set): Updated.
5116
5117	(ft_mem_debug_panic, ft_mem_debug_alloc, ft_mem_debug_free,
5118	ft_mem_debug_realloc): Use `static' keyword and fix signedness
5119	warnings where necessary.
5120
5121	(ft_mem_table_resize, ft_mem_table_new, ft_mem_table_destroy,
5122	ft_mem_table_get_nodep, ft_mem_debug_init, FT_DumpMemory): Fix types
5123	and add or remove casts to avoid signedness warnings.
5124
51252015-02-15  Werner Lemberg  <wl@gnu.org>
5126
5127	[base] Clean up signedness in arithmetic functions.
5128
5129	This makes the code more readable and reduces compiler warnings.
5130
5131	* src/base/ftcalc.c (FT_MulDiv, FT_MulDiv_No_Round, FT_MulFix,
5132	FT_DivFix): Convert input parameters to unsigned, do the
5133	computation, then convert the result back to signed.
5134	(ft_corner_orientation): Fix casts.
5135
51362015-02-07  Werner Lemberg  <wl@gnu.org>
5137
5138	[sfnt] Fix Savannah bug #44184.
5139
5140	* src/sfnt/ttload.c (check_table_dir, tt_face_load_font_dir): No
5141	longer reject `htmx' and `vmtx' tables with invalid length but
5142	sanitize them.
5143
51442015-02-06  Jon Anderson  <jon@websupergoo.com>
5145
5146	[truetype] Fix regression in the incremental glyph loader.
5147
5148	* src/truetype/ttgload.c (load_truetype_glyph): For incremental
5149	fonts, the glyph index may be greater than the number of glyphs
5150	indicated, so guard the check with a preprocessor conditional.
5151
51522015-02-06  Werner Lemberg  <wl@gnu.org>
5153
5154	[autofit] Fix potential memory leak.
5155
5156	While this doesn't show up with FreeType, exactly the same code
5157	leaks with ttfautohint's modified auto-hinter code (which gets used
5158	in a slightly different way).
5159
5160	It certainly doesn't harm since it is similar to already existing
5161	checks in the code for embedded arrays.
5162
5163	* src/autofit/afhints.c (af_glyph_hints_reload): Set `max_contours'
5164	and `max_points' for all cases.
5165
51662015-01-31  Werner Lemberg  <wl@gnu.org>
5167
5168	[autofit] Add support for Thai script.
5169
5170	Thanks to Ben Mitchell <ben@rosettatype.com> for guidance with blue
5171	zone characters!
5172
5173	* src/autofit/afblue.dat: Add blue zone data for Thai.
5174
5175	* src/autofit/afblue.c, src/autofit/afblue.h: Regenerated.
5176
5177	* src/autofit/afscript.h: Add Thai standard characters.
5178
5179	* src/autofit/afranges.c: Add Thai data.
5180
5181	* src/autofit/afstyles.h: Add Thai data.
5182
51832015-01-23  Behdad Esfahbod  <behdad@behdad.org>
5184
5185	[raster] Handle `FT_RASTER_FLAG_AA' correctly.
5186
5187	This fixes a breakage caused by the commit `[raster] Remove
5188	5-level gray AA mode from monochrome rasterizer.'.
5189
5190	Problem reported by Markus Trippelsdorf <markus@trippelsdorf.de>.
5191
5192	* src/raster/ftraster.c (ft_black_render): Handle
5193	`FT_RASTER_FLAG_AA'.
5194
5195	* src/raster/ftrend1.c (ft_raster1_render): Remove gray AA mode
5196	remnants.
5197
51982015-01-18  Werner Lemberg  <wl@gnu.org>
5199
5200	* src/base/ftobjs.c (FT_New_Library): Fix compiler warning.
5201
52022015-01-18  Chris Liddell  <chris.liddell@artifex.com>
5203
5204	[raster] Fix Savannah bug #44022.
5205
5206	Add fallback for glyphs with degenerate bounding boxes.
5207
5208	If a glyph has only one very narrow feature, the bbox can end up
5209	with either the width or height of the bbox being 0, in which case
5210	no raster memory is allocated and no attempt is made to render the
5211	glyph.  This is less than ideal when the drop-out compensation in
5212	the rendering code would actually result in the glyph being
5213	rendered.
5214
5215	This problem can be observed with the `I' glyph (gid 47) in the
5216	Autodesk RomanS TrueType font.
5217
5218	* src/raster/ftrend1.c (ft_raster1_render): Add a fallback if either
5219	dimension is zero to explicitly round up/down (instead of simply
5220	round).
5221
52222015-01-17  Werner Lemberg  <wl@gnu.org>
5223
5224	Add some tools to handle yearly copyright notice updates.
5225
5226	We are now following the GNU guidelines: A new release automatically
5227	means that the copyright year of all affected files gets updated; it
5228	is no longer used to track years of modification changes.
5229
5230	* src/tools/update-copyright-year: New Perl script.
5231	* src/tools/update-copyright: New shell script that calls
5232	`update-copyright-year' on all files.
5233	* src/tools/no-copyright: Exceptions that should not be handled by
5234	`update-copyright'
5235
52362015-01-14  Werner Lemberg  <wl@gnu.org>
5237
5238	* docs/CHANGES: Updated, using a description from Behdad.
5239
52402015-01-14  Behdad Esfahbod  <behdad@behdad.org>
5241
5242	* src/autofit/afmodule.c (af_autofitter_done): Fix compiler warning.
5243
52442015-01-14  Behdad Esfahbod  <behdad@behdad.org>
5245
5246	[autofit] Add embedded array of segments and edges.
5247
5248	Avoids multiple mallocs per typical glyphs.
5249
5250	With this and recent changes to avoid mallocs, the thread-safe
5251	stack-based loader is now as fast as the previous model that had one
5252	cached singleton.
5253
5254	* src/autofit/afhints.h (AF_SEGMENTS_EMBEDDED, AF_EDGES_EMBEDDED):
5255	New macros.
5256	(AF_AxisHintsRec): Add two arrays for segments and edges.
5257
5258	* src/autofit/afhints.c (af_axis_hints_new_segment): Only allocate
5259	data if number of segments exceeds given threshold value.
5260	(af_axis_hints_new_edge):  Only allocate data if number of edges
5261	exceeds given threshold value.
5262	(af_glyph_hints_done): Updated.
5263
52642015-01-14  Behdad Esfahbod  <behdad@behdad.org>
5265
5266	[autofit] Add embedded arrays for points and contours.
5267
5268	This avoids at least two malloc calls for typical glyphs.
5269
5270	* src/autofit/afhints.h (AF_POINTS_EMBEDDED, AF_CONTOURS_EMBEDDED):
5271	New macros.
5272	(AF_GlyphHintsRec): Add two arrays for contours and points.
5273
5274	* src/autofit/afhints.c (af_glyph_hints_init, af_glyph_hints_done):
5275	Updated.
5276	(af_glyph_hints_reload): Only allocate data if number of contours or
5277	points exceeds given threshold values.
5278
52792015-01-14  Behdad Esfahbod  <behdad@behdad.org>
5280
5281	[autofit] Allocate hints object on the stack.
5282
5283	This avoids one malloc per load.
5284
5285	* src/autofit/afloader.h (AF_LoaderRec): Change type of `hints' to
5286	`AF_GlyphHints'.
5287	Update prototype.
5288
5289	* src/autofit/afloader.c (af_loader_init): Use `AF_GlyphHints'
5290	parameter instead of `FT_Memory'.
5291	(af_loader_done): Directly reset `load_hints'.
5292	(af_loader_load_g): Updated.
5293
5294	* src/autofit/afmodule.c (af_autofitter_load_glyph): Use local
5295	`hints' object.
5296
52972015-01-14  Behdad Esfahbod  <behdad@behdad.org>
5298
5299	[autofit] Reuse slot glyph loader.
5300
5301	No need to create a new glyph loader; we can reuse the one from
5302	`slot->internal->loader'.  It's hard to tell why it was written that
5303	way originally, but new code looks sound and correct to me, and
5304	avoids lots of allocations.
5305
5306	* src/autofit/afloader.c (af_loader_init): Change return type to
5307	`void'.
5308	Don't call `FT_GlyphLoader_New'.
5309	(af_loader_reset): Don't call `FT_GlyphLoader_Rewind'.
5310	(af_loader_load_g): Update code to use `internal->loader', which
5311	doesn't need copying of data.
5312
5313	* src/autofit/afloader.h (AF_LoaderRec): Remove `gloader' member.
5314	Update prototype.
5315
5316	* src/autofit/afmodule.c (af_autofitter_load_glyph): Updated.
5317
53182015-01-14  Behdad Esfahbod  <behdad@behdad.org>
5319
5320	[autofit] Remove (unused) support for composite glyphs.
5321
5322	We never have to deal with composite glyphs in the autohinter, as
5323	those will be loaded into FORMAT_OUTLINE by the recursed
5324	`FT_Load_Glyph' function.
5325
5326	In the rare cases that FT_LOAD_NO_RECURSE is set, it will imply
5327	FT_LOAD_NO_SCALE as per `FT_Load_Glyph', which then implies
5328	FT_LOAD_NO_HINTING:
5329
5330	  /* resolve load flags dependencies */
5331
5332	  if ( load_flags & FT_LOAD_NO_RECURSE )
5333	    load_flags |= FT_LOAD_NO_SCALE         |
5334	                  FT_LOAD_IGNORE_TRANSFORM;
5335
5336	  if ( load_flags & FT_LOAD_NO_SCALE )
5337	  {
5338	    load_flags |= FT_LOAD_NO_HINTING |
5339	                  FT_LOAD_NO_BITMAP;
5340
5341	    load_flags &= ~FT_LOAD_RENDER;
5342	  }
5343
5344	and as such the auto-hinter is never called.  Thus, the recursion in
5345	`af_loader_load_g' never actually happens.  So remove the depth
5346	counter as well.
5347
5348	* src/autofit/afloader.c (af_loader_load_g): Remove `depth'
5349	parameter.
5350	<FT_GLYPH_FORMAT_COMPOSITE>: Remove associated code.
5351	(af_loader_load_glyph): Updated.
5352
53532015-01-14  Behdad Esfahbod  <behdad@behdad.org>
5354
5355	[raster] Fix uninitialized memory access.
5356
5357	Apparently `ras.cProfile' might be uninitialized.  This will be the
5358	case if `ras.top == ras.cProfile->offset', as can be seen in
5359	`End_Profile'.  The overshoot code introduced in a change `Fix B/W
5360	rasterization of subglyphs with different drop-out modes.' (from
5361	2009-06-18) violated this, accessing `ras.cProfile->flags'
5362	unconditionally just before calling `End_Profile' (which then
5363	detected that `cProfile' is uninitialized and didn't touch it).
5364
5365	This was harmless, and was not detected by valgrind before because
5366	the objects were allocated on the `raster_pool', which was always
5367	initialized.  With recent change to allocate raster buffers on the
5368	stack, valgrind now reported this invalid access.
5369
5370	* src/raster/ftraster.c (Convert_Glyph): Don't access an
5371	uninitialized `cProfile'.
5372
53732015-01-14  Behdad Esfahbod  <behdad@behdad.org>
5374
5375	[smooth] Fix uninitialized memory access.
5376
5377	Looks like `ras.span_y' could always be used without initialization.
5378	This was never detected by valgrind before because the library-wide
5379	`raster_pool' was used for the worker object and `raster_pool' was
5380	originally zero'ed.  But subsequent reuses of it were using `span_y'
5381	uninitialized.  With the recent change to not use `render_pool' and
5382	allocate worker and buffer on the stack, valgrind now detects this
5383	uninitialized access.
5384
5385	* src/smooth/ftgrays.c (gray_raster_render): Initialize
5386	`ras.span_y'.
5387
53882015-01-14  Behdad Esfahbod  <behdad@behdad.org>
5389
5390	[base] Don't initialize unused `driver->glyph_loader'.
5391
5392	* src/base/ftobjs.c (Destroy_Driver): Don't call
5393	`FT_GlyphLoader_Done'.
5394	(FT_Add_Module): Don't call `FT_GlyphLoader_New'.
5395
53962015-01-14  Behdad Esfahbod  <behdad@behdad.org>
5397
5398	[base] Don't allocate `library->raster_pool' anymore.
5399
5400	It's unused after the following commits:
5401
5402	  [raster] Allocate render pool for mono rasterizer on the stack.
5403	  [raster] Remove 5-level gray AA mode from monochrome rasterizer.
5404
5405	The value of FT_RENDER_POOL_SIZE still serves the purpose it used to
5406	serve, which is, to adjust the pool size.  But the pool is now
5407	allocated on the stack on demand.
5408
5409	* src/base/ftobjs.c (FT_New_Library, FT_Done_Library): Implement.
5410
54112015-01-14  Behdad Esfahbod  <behdad@behdad.org>
5412
5413	[base] Do not reorder library->renderers upon use.
5414
5415	Instead of keeping `library->renderers' in a MRU order, just leave
5416	it as-is.  The MRU machinery wasn't thread-safe.
5417
5418	With this patch, rasterizing glyphs from different faces from
5419	different threads doesn't fail choosing rasterizer
5420	(FT_Err_Cannot_Render_Glyph).
5421
5422	Easiest to see that crash was to add a `printf' (or otherwise let
5423	thread yield in FT_Throw with debugging enabled).
5424
5425	* src/base/ftobjs.c (FT_Render_Glyph_Internal), src/base/ftoutln.c
5426	(FT_Outline_Render): Don't call `FT_Set_Renderer'.
5427
54282015-01-14  Behdad Esfahbod  <behdad@behdad.org>
5429
5430	[raster] Allocate render pool for mono rasterizer on the stack.
5431
5432	Instead of using the `render_pool' member of `FT_Library' that is
5433	provided down to the rasterizer, completely ignore that and allocate
5434	needed objects on the stack instead.
5435
5436	With this patch, rasterizing glyphs from different faces from
5437	different threads doesn't crash in the monochrome rasterizer.
5438
5439	* src/raster/ftraster.c (black_TRaster): Remove `buffer',
5440	`buffer_size', and `worker' members.
5441
5442	(ft_black_render): Create `buffer' locally.
5443	(ft_black_reset): Updated.
5444
54452015-01-14  Behdad Esfahbod  <behdad@behdad.org>
5446
5447	[raster] Remove 5-level gray AA mode from monochrome rasterizer.
5448
5449	It was off by default and couldn't be turned on at runtime.  And the
5450	smooth rasterizer superseded it over ten years ago.  No point in
5451	keeping.  Comments suggested that it was there for compatibility
5452	with FreeType 1.
5453
5454	550 lines down.
5455
5456	* src/raster/ftraster.c (FT_RASTER_OPTION_ANTI_ALIASING,
5457	RASTER_GRAY_LINES): Remove macros and all associated code.
5458
5459	(black_TWorker): Remove `gray_min_x' and `gray_max_x'.
5460	(black_TRaster): Remove `grays' and `gray_width'.
5461
5462	(Vertical_Sweep_Init, Vertical_Sweep_Span, Vertical_Sweep_Drop,
5463	ft_black_render): Updated.
5464
5465	* src/raster/ftrend1.c (ft_raster1_render): Simplify code.
5466	(ft_raster5_renderer_class): Removed.
5467
54682015-01-14  Behdad Esfahbod  <behdad@behdad.org>
5469
5470	[smooth] Allocate render pool for smooth rasterizer on the stack.
5471
5472	Instead of using the `render_pool' member of `FT_Library' that is
5473	provided down to the rasterizer, completely ignore that and allocate
5474	needed objects on the stack instead.
5475
5476	With this patch, rasterizing glyphs from different faces from
5477	different threads doesn't crash in the smooth rasterizer.
5478
5479	Bugs:
5480
5481	  https://bugzilla.redhat.com/show_bug.cgi?id=678397
5482	  https://bugzilla.redhat.com/show_bug.cgi?id=1004315
5483	  https://bugzilla.redhat.com/show_bug.cgi?id=1165471
5484	  https://bugs.freedesktop.org/show_bug.cgi?id=69034
5485
5486	* src/smooth/ftgrays.c (gray_TRaster): Remove `buffer',
5487	`buffer_size', `band_size', and `worker' members.
5488
5489	(gray_raster_render): Create `buffer', `buffer_size', and
5490	`band_size' locally.
5491	(gray_raster_reset): Updated.
5492
54932015-01-14  Behdad Esfahbod  <behdad@behdad.org>
5494
5495	[truetype] Allocate TT_ExecContext in TT_Size instead of TT_Driver.
5496
5497	Previously the code had stipulation for using a per-TT_Size exec
5498	context if `size->debug' was true.  But there was no way that
5499	`size->debug' could *ever* be true.  As such, the code was always
5500	using the singleton `TT_ExecContext' that was stored in `TT_Driver'.
5501	This was, clearly, not threadsafe.
5502
5503	With this patch, loading glyphs from different faces from different
5504	threads doesn't crash in the bytecode loader code.
5505
5506	* src/truetype/ttobjs.h (TT_SizeRec): Remove `debug' member.
5507	(TT_DriverRec): Remove `context' member.
5508
5509	* src/truetype/ttobjs.c (tt_size_run_fpgm, tt_size_run_prep): Remove
5510	`TT_ExecContext' code related to a global `TT_Driver' object.
5511
5512	(tt_driver_done): Don't remove `TT_ExecContext' object here but ...
5513	(tt_size_done_bytecode): ... here.
5514
5515	(tt_driver_init): Don't create `TT_ExecContext' object here but ...
5516	(tt_size_init_bytecode): ... here, only on demand.
5517
5518	* src/truetype/ttinterp.c (TT_Run_Context): Remove defunct debug
5519	code.
5520	(TT_New_Context): Remove `TT_ExecContext' code related to a global
5521	`TT_Driver' object.
5522
5523	* src/truetype/ttinterp.h: Updated.
5524
5525	* src/truetype/ttgload.c (TT_Hint_Glyph, tt_loader_init): Updated.
5526
55272015-01-14  Behdad Esfahbod  <behdad@behdad.org>
5528
5529	[autofit] Allocate AF_Loader on the stack instead of AF_Module.
5530
5531	Stop sharing a global `AF_Loader'.  Allocate one on the stack during
5532	glyph load.
5533
5534	Right now this results in about 25% slowdown, to be fixed in a
5535	following commit.
5536
5537	With this patch loading glyphs from different faces from different
5538	threads doesn't immediately crash in the autohinting loader code.
5539
5540	Bugs:
5541
5542	  https://bugzilla.redhat.com/show_bug.cgi?id=1164941
5543
5544	* src/autofit/afloader.c (af_loader_init): Pass
5545	`AF_Loader' and `FT_Memory' instead of `AF_Module' as arguments.
5546	(af_loader_reset, af_loader_load_glyph): Also pass `loader' as
5547	argument.
5548	(af_loader_done): Use `AF_Loader' instead of `AF_Module' as
5549	argument.
5550
5551	* src/autofit/afmodule.c (af_autofitter_init): Don't call
5552	`af_loader_init'.
5553	(af_autofitter_done): Don't call `af_loader_done'.
5554	(af_autofitter_load_glyph): Use a local `AF_Loader' object.
5555
5556	* src/autofit/afloader.h: Include `afmodule.h'.
5557	Update prototypes.
5558	Move typedef for `AF_Module' to...
5559
5560	* src/autofit/afmodule.h: ... this place.
5561	No longer include `afloader.h'.
5562
55632015-01-14  Behdad Esfahbod  <behdad@behdad.org>
5564
5565	* src/type42/t42objs.h (T42_DriverRec): Remove unused member.
5566
55672015-01-12  Werner Lemberg  <wl@gnu.org>
5568
5569	Fix Savannah bug #43976.
5570
5571	Assure that FreeType's internal include directories are found before
5572	`CPPFLAGS' (which might be set by the user in the environment), and
5573	`CPPFLAGS' before `CFLAGS'.
5574
5575	* builds/freetype.mk (FT_CFLAGS): Don't add `INCLUDE_FLAGS'.
5576	(FT_COMPILE): Make this a special variable for compiling only the
5577	files handled in `freetype.mk'.
5578	(.c.$O): Removed, unused.
5579
5580	* src/*/rules.mk (*_COMPILE): Fix order of include directories.
5581
55822015-01-11  Werner Lemberg  <wl@gnu.org>
5583
5584	[truetype] Prettifying.
5585
5586	* src/truetype/ttinterp.c (project, dualproj, fast_project,
5587	fast_dualproj): Rename to...
5588	(PROJECT, DUALPROJ, FAST_PROJECT, FAST_DUALPROJ): ... this.
5589
55902015-01-11  Werner Lemberg  <wl@gnu.org>
5591
5592	* src/truetype/ttinterp.c (Ins_JROT, Ins_JROF): Simplify.
5593
5594	Based on a patch from Behdad.
5595
55962015-01-11  Werner Lemberg  <wl@gnu.org>
5597
5598	* src/truetype/ttinterp.c (Ins_SxVTL): Simplify function call.
5599
56002015-01-11  Werner Lemberg  <wl@gnu.org>
5601
5602	* src/truetype/ttinterp.c (Normalize): Remove unused argument.
5603
56042015-01-11  Werner Lemberg  <wl@gnu.org>
5605
5606	[truetype] More macro expansions.
5607
5608	* src/truetype/ttinterp.c (FT_UNUSED_EXEC): Remove macro by
5609	expansion.
5610
56112015-01-11  Werner Lemberg  <wl@gnu.org>
5612
5613	[truetype] More macro expansions.
5614
5615	* src/truetype/ttinterp.c (INS_ARG): Remove macro by expansion,
5616	adjusting function calls where necessary.
5617	(FT_UNUSED_ARG): Removed, no longer needed.
5618
56192015-01-10  Werner Lemberg  <wl@gnu.org>
5620
5621	[truetype] More macro expansions.
5622
5623	Based on a patch from Behdad.
5624
5625	* src/truetype/ttinterp.c (DO_*): Expand macros into corresponding
5626	`Ins_*' functions.
5627	(TT_RunIns): Replace `DO_*' macros with `Ins_*' function calls.
5628	(ARRAY_BOUND_ERROR): Remove second definition, which is no longer
5629	needed.
5630	(Ins_SVTCA, Ins_SPVTCA, Ins_SFVTCA): Replaced with...
5631	(Ins_SxyTCA): New function.
5632
56332015-01-10  Werner Lemberg  <wl@gnu.org>
5634
5635	[truetype] Remove TT_CONFIG_OPTION_INTERPRETER_SWITCH.
5636
5637	Behdad suggested this code simplification, and nobody objected...
5638
5639	* include/config/ftoption.h, devel/ftoption.h
5640	(TT_CONFIG_OPTION_INTERPRETER_SWITCH): Remove.
5641
5642	* src/truetype/ttinterp.c [TT_CONFIG_OPTION_INTERPRETER_SWITCH]:
5643	Remove related code.
5644	(ARRAY_BOUND_ERROR): Use do-while loop.
5645
56462015-01-10  Werner Lemberg  <wl@gnu.org>
5647
5648	[truetype] More macro expansions.
5649
5650	* src/truetype/ttinterp.c, src/truetype/ttinterp.h (EXEC_ARG_,
5651	EXEC_ARG): Remove by replacing with expansion.
5652
56532015-01-10  Werner Lemberg  <wl@gnu.org>
5654
5655	[truetype] More macro expansions.
5656
5657	Based on a patch from Behdad.
5658
5659	* src/truetype/ttinterp.c (SKIP_Code, GET_ShortIns, NORMalize,
5660	SET_SuperRound, ROUND_None, INS_Goto_CodeRange, CUR_Func_move,
5661	CUR_Func_move_orig, CUR_Func_round, CUR_Func_cur_ppem,
5662	CUR_Func_read_cvt, CUR_Func_write_cvt, CUR_Func_move_cvt,
5663	CURRENT_Ratio, INS_SxVTL, COMPUTE_Funcs, COMPUTE_Round,
5664	COMPUTE_Point_Displacement, MOVE_Zp2_Point): Remove by replacing
5665	with expansion.
5666
5667	(Cur_Func_project, CUR_Func_dualproj, CUR_fast_project,
5668	CUR_fast_dualproj): Replace with macros `project', `dualproj',
5669	`fast_project', `fast_dualproj'.
5670
56712015-01-10  Werner Lemberg  <wl@gnu.org>
5672
5673	[truetype] More macro expansions.
5674
5675	* src/truetype/ttinterp.c (EXEC_OP_, EXEC_OP): Remove by replacing
5676	with expansion.
5677
56782015-01-10  Werner Lemberg  <wl@gnu.org>
5679
5680	[truetype] Remove code for static TrueType interpreter.
5681
5682	This is a follow-up patch.
5683
5684	* src/truetype/ttinterp.c, src/truetype/ttinterp.h
5685	[TT_CONFIG_OPTION_STATIC_INTERPRETER,
5686	TT_CONFIG_OPTION_STATIC_RASTER]: Remove macros and related code.
5687
56882015-01-10  Werner Lemberg  <wl@gnu.org>
5689
5690	* src/truetype/ttinterp.c (CUR): Remove by replacing with expansion.
5691
5692	This starts a series of patches that simplifies the code of the
5693	bytecode interpreter.
5694
5695
5696----------------------------------------------------------------------------
5697
5698Copyright (C) 2015-2020 by
5699David Turner, Robert Wilhelm, and Werner Lemberg.
5700
5701This file is part of the FreeType project, and may only be used, modified,
5702and distributed under the terms of the FreeType project license,
5703LICENSE.TXT.  By continuing to use, modify, or distribute this file you
5704indicate that you have read the license and understand and accept it
5705fully.
5706
5707
5708Local Variables:
5709version-control: never
5710coding: utf-8
5711End:
5712