Commit Graph

1207 Commits

Author SHA1 Message Date
Werner Lemberg 24aa9c665e [autofit] Rewrite HarfBuzz interface to support character clusters.
Scripts like Khmer have blue zones that can't be directly
represented by Unicode characters.  Instead, it is necessary to let
HarfBuzz convert character clusters into proper glyph representation
forms, then deriving the blue zone information from the resulting
glyphs.

* src/autofit/hbshim.c, src/autofit/hbshim.h: Replaced by...
* src/autofit/afshaper.c, src/autofit/afshaper.h: ... these two new
files, providing a new API to access HarfBuzz.

The new API manages a HarfBuzz buffer with `af_shaper_buf_create'
and `af_shaper_buf_destroy'.  The buffer receives a UTF8 encoded
string with function `af_shaper_get_cluster', and the resulting
glyph data (indices, advance widths, vertical offsets) can be
iteratively accessed with function `af_shaper_get_elem'.

* src/autofit/afcjk.c (af_cjk_metrics_init_widths,
af_cjk_metrics_init_blues, af_cjk_metrics_check_digits): Updated.

* src/autofit/aflatin.c (af_latin_metrics_init_widths,
af_latin_metrics_init_blues, af_latin_metrics_check_digits):
Updated.

* include/freetype/internal/fttrace.h: s/afharfbuzz/afshaper/.

* src/autofit/afglobal.c: s/hbshim.h/afshaper.h/.
(af_face_globals_compute_style_coverage): Updated.

* src/autofit/afglocal.h: s/hbshim.h/afshaper.h/.

* src/autofit/autofit.c: s/hbshim.c/afshaper.c/.

* src/autofit/Jamfile, src/autofit/rules.mk (AUTOF_DRV_SRC):
Updated.
2015-12-06 18:52:41 +01:00
Alexei Podtelezhnikov 1b740a0076 Minor rearrangement. 2015-12-02 00:30:57 -05:00
Alexei Podtelezhnikov f8c2057789 * include/freetype/ftlcdfil.h: Documentation tweak. 2015-11-28 22:43:33 -05:00
Werner Lemberg 66cf29b1bc * Version 2.6.2 released.
=========================

Tag sources with `VER-2-6-2'.

* docs/VERSION.DLL: Update documentation and bump version number to
2.6.2.

* README, Jamfile (RefDoc), builds/windows/vc2005/freetype.vcproj,
builds/windows/vc2005/index.html,
builds/windows/vc2008/freetype.vcproj,
builds/windows/vc2008/index.html,
builds/windows/vc2010/freetype.vcxproj,
builds/windows/vc2010/index.html,
builds/windows/visualc/freetype.dsp,
builds/windows/visualc/freetype.vcproj,
builds/windows/visualc/index.html,
builds/windows/visualce/freetype.dsp,
builds/windows/visualce/freetype.vcproj,
builds/windows/visualce/index.html,
builds/wince/vc2005-ce/freetype.vcproj,
builds/wince/vc2005-ce/index.html,
builds/wince/vc2008-ce/freetype.vcproj,
builds/wince/vc2008-ce/index.html: s/2.6.1/2.6.2/, s/261/262/.

* include/freetype/freetype.h (FREETYPE_PATCH): Set to 2.

* builds/unix/configure.raw (version_info): Set to 18:2:12.
* CMakeLists.txt (VERSION_PATCH): Set to 2.

* docs/CHANGES: Updated.
2015-11-28 19:08:05 +01:00
Nikolaus Waxweiler 25b1330a4d Minor documentation improvements. 2015-11-28 18:07:53 +01:00
Nikolaus Waxweiler 01ce1c6a99 Change default LCD filter to be normalized and color-balanced.
Update documentation.

* src/base/ftlcdfil.c (FT_Library_SetLcdFilter): Update
`default_filter'.
2015-11-28 12:04:28 +01:00
Werner Lemberg 7696e337ee Use new docmaker syntax for identifiers with identical names. 2015-11-26 14:31:08 +01:00
Werner Lemberg 663f2d7a23 * include/freetype/internal/ftcalc.h: Don't use `register' keyword.
This fixes compiler warnings.

Reported by Behdad.
2015-11-21 06:30:43 +01:00
Werner Lemberg b96af12eb6 Add `FT_LCD_FILTER_LEGACY1' enum value.
This does the same as `FT_LCD_FILTER_LEGACY'.

See

  https://bugs.freedesktop.org/show_bug.cgi?id=92981

for the reasoning.

* include/freetype/ftlcdfil.h (FT_LcdFilter): New value
`FT_LCD_FILTER_LEGACY1'.

* src/base/ftlcdfil.c (FT_Library_SetLcdFilter): Use it.
2015-11-20 16:03:09 +01:00
Werner Lemberg 49984c9bc0 Documentation typo. 2015-11-12 22:48:51 +01:00
Jan Alexander Steffens (heftig) ccd3188af1 Allow native CFF hinter in FT_RENDER_MODE_LIGHT.
Both the native CFF hinter and the auto-hinter now have a very
similar rendering style.

* include/freetype/freetype.h: Mention that FT_LOAD_TARGET_LIGHT no
longer implies FT_LOAD_FORCE_AUTOHINT.

* include/freetype/ftmodapi.h (FT_MODULE_DRIVER_HINTS_LIGHTLY): New
macro.

* include/freetype/internal/ftobjs.h (FT_DRIVER_HINTS_LIGHTLY): New
macro.

* src/cff/cffdrivr.c (cff_driver_class): Use it.

* src/base/ftobjs.c (FT_Load_Glyph): Update auto-hinter selection
logic.
2015-11-10 22:33:45 +01:00
Werner Lemberg 758d55e522 [truetype] Catch infinite recursion in subglyphs (#46372).
* include/freetype/internal/tttypes.h (TT_LoaderRec): New field
`composites'.

* src/truetype/ttgload.c: Include FT_LIST_H.
(load_truetype_glyph): Add composite subglyph index to a list;
abort if index is already in list.
(tt_loader_init): Updated.
(tt_loader_done): New function.
(TT_Load_Glyph): Call `tt_loader_done'.
2015-11-04 11:44:47 +01:00
Nikolaus Waxweiler d682e51062 [autofit] Add stem-darkening properties.
Actual code follows in a later commit.

* include/freetype/ftautoh.h: Document `no-stem-darkening' and
`darkening-parameters'.

* src/autofit/afmodule.h: New fields `no_stem_darkening' and
`darken_params'.

* src/autofit/afmodule.c (af_property_set, af_property_get):
Handle them.
(af_autofitter_init): Initialize them.
2015-11-02 09:06:36 +01:00
Werner Lemberg 5dedbc048f Improve documentation of `FT_Get_MM_Var' and `FT_MM_Var'. 2015-10-22 07:22:55 +02:00
Werner Lemberg 2961b66c70 Typo. 2015-10-19 23:17:25 +02:00
Werner Lemberg 14213b5409 [truetype] Improve TT_CONFIG_OPTION_MAX_RUNNABLE_OPCODES (#46223).
* devel/ftoption.h, include/freetype/config/ftoption.h: Surround it
with #ifndef ... #endif, as suggested in the tracker issue.
2015-10-18 18:15:04 +02:00
Werner Lemberg 24a1fcdfce [truetype] Add TT_CONFIG_OPTION_MAX_RUNNABLE_OPCODES (#46208).
* devel/ftoption.h, include/freetype/config/ftoption.h
(TT_CONFIG_OPTION_MAX_RUNNABLE_OPCODES): New configuration macro.

* src/truetype/ttinterp.c (MAX_RUNNABLE_OPCODES): Removed.
(TT_RunIns): Updated.
2015-10-15 21:50:15 +02:00
Werner Lemberg 8cabd919ca * Version 2.6.1 released.
=========================

Tag sources with `VER-2-6-1'.

* docs/VERSION.DLL: Update documentation and bump version number to
2.6.1.

* README, Jamfile (RefDoc), builds/windows/vc2005/freetype.vcproj,
builds/windows/vc2005/index.html,
builds/windows/vc2008/freetype.vcproj,
builds/windows/vc2008/index.html,
builds/windows/vc2010/freetype.vcxproj,
builds/windows/vc2010/index.html,
builds/windows/visualc/freetype.dsp,
builds/windows/visualc/freetype.vcproj,
builds/windows/visualc/index.html,
builds/windows/visualce/freetype.dsp,
builds/windows/visualce/freetype.vcproj,
builds/windows/visualce/index.html,
builds/wince/vc2005-ce/freetype.vcproj,
builds/wince/vc2005-ce/index.html,
builds/wince/vc2008-ce/freetype.vcproj,
builds/wince/vc2008-ce/index.html: s/2.6/2.6.1/, s/26/261/.

* include/freetype/freetype.h (FREETYPE_PATCH): Set to 1.

* builds/unix/configure.raw (version_info): Set to 18:1:12.
* CMakeLists.txt (VERSION_PATCH): Set to 1.

* src/autofit/afmodule.c [AF_DEBUG_AUTOFIT]: Ensure C linking for
dumping functions.
2015-10-04 08:18:01 +02:00
Hin-Tak Leung 265ade8e80 Add new FT_LOAD_COMPUTE_METRICS load flag.
* include/freetype/freetype.h (FT_LOAD_COMPUTE_METRICS): New macro.
* src/truetype/ttgload.c (compute_glyph_metrics): Usage.
2015-09-26 14:51:30 +02:00
Werner Lemberg 5339c75ee6 [sfnt] Better checks for invalid cmaps (2/2) (#46019).
While the current code in `FT_Get_Next_Char' correctly rejects
out-of-bounds glyph indices, it can be extremely slow for malformed
cmaps that use 32bit values.  This commit tries to improve that.

* src/sfnt/ttcmap.c (tt_cmap8_char_next, tt_cmap12_next,
tt_cmap12_char_map_binary, tt_cmap13_next,
tt_cmap13_char_map_binary): Reject glyph indices larger than or
equal to the number of glyphs.
2015-09-24 13:39:44 +02:00
Werner Lemberg b6eef5ae7b Better document various TrueType hinting modes.
Text based on private communication with Greg Hitchcock and added to the
repository with his permission.
2015-09-10 07:44:48 +02:00
Wojciech Mamrak 822acb0252 * src/base/ftcalc.c (FT_CeilFix, FT_FloorFix): Normalize.
This commit makes the functions behave as expected, this is,
rounding towards plus or minus infinity.
2015-09-09 07:59:10 +02:00
Wojciech Mamrak 5578199a68 Minor documentation corrections. 2015-09-09 07:52:17 +02:00
Werner Lemberg 87c81f0460 [autofit] Make glyph style array use 16bit values.
* include/freetype/ftautoh.h (FT_Prop_GlyphToScriptMap): Use
`FT_UShort' for `map' field.

* src/autofit/afglobal.c (af_face_globals_compute_style_coverage,
af_face_globals_new), src/autofit/hbshim.c, src/autofit/hbshim.h
(af_get_coverage): Use FT_UShort for `glyph_styles' array.

* src/autofit/afglobal.h (AF_STYLE_UNASSIGNED, AF_DIGIT): Extend to
16 bits.
(AF_FaceGlobalsRec): Use `FT_UShort' for `glyph_styles' field.
2015-09-02 05:59:35 +02:00
Werner Lemberg 78b014031d [base] Improve kerning tracing and documentation.
* src/base/ftobjs.c (FT_Get_Kerning): Emit tracing message if
scaled-down kerning values differ.
2015-08-25 07:23:01 +02:00
Nikolaus Waxweiler f4b61a6a5d Minor documentation fix. 2015-08-19 06:51:06 +02:00
Werner Lemberg 91d59169a8 [raster] Remove last remnants of `raster5' driver.
* src/raster/ftrend1.h (ft_raster5_renderer_class): Removed.

* src/raster/rastpic.c, src/raster/rastpic.h
(ft_raster5_renderer_class_pic_init,
ft_raster5_renderer_class_pic_free): Removed.
2015-08-18 06:04:36 +02:00
Werner Lemberg 14d6b5d748 [truetype] Introduce named instance access to GX fonts.
For functions querying a face, bits 16-30 of the face index can hold
the named instance index if we have a GX font.  The indices start
with value 1; value 0 indicates font access without GX variation
data.

* include/freetype/freetype.h (FT_FaceRec): Update documentation.
* include/freetype/internal/sfnt.h: Ditto.

* src/sfnt/sfobjs.c (sfnt_init_face)
[TT_CONFIG_OPTION_GX_VAR_SUPPORT]: Get number of named instances and
do argument checks.
(sfnt_load_face): Updated.

* src/truetype/ttobjs.c (tt_face_init)
[TT_CONFIG_OPTION_GX_VAR_SUPPORT]: Use named instance, overwriting
the style name.

* src/base/ftobjs.c (open_face_from_buffer,
open_face_PS_from_sfnt_stream): Updated.
* src/bdf/bdfdrivr.c (BDF_Face_Init): Updated.
* src/cff/cffload.c (cff_font_load): Updated.

* src/cff/cffobjs.c (cff_face_init): Make function exit early for
pure CFF fonts if `font_index < 0'.
Updated.

* src/cid/cidobjs.c (cid_face_init): Updated.
* src/pcf/pcfdrivr.c (PCF_Face_Init): Updated.
* src/pfr/pfrobjs.c (pfr_face_init): Updated.
* src/type1/t1objs.c (T1_Face_Init): Updated.
* src/type42/t42objs.c (T42_Face_Init): Updated.
* src/winfonts/winfnt.c (fnt_face_get_dll_font, FNT_Face_Init):
Updated.

* docs/CHANGES: Updated.
2015-08-13 15:22:17 +02:00
Alexei Podtelezhnikov 98e8e99986 [truetype] Clean up types.
* src/truetype/ttobjs.c (TT_Size): Move declaration from here.
* include/freetype/internal/tttypes.h (TT_Size): ... to here.
(TT_LoaderRec): Switch to appropriate types for `face' and `size'.
* src/truetype/ttgload.c: Remove corresponding type casts.
* src/truetype/ttsubpix.c: Ditto.
2015-08-06 00:06:14 -04:00
Werner Lemberg 5d1b8ab4d0 Define FT_LONG_MAX.
* include/freetype/config/ftstdlib.h (FT_LONG_MAX): New macro.
* src/cff/cf2arrst.c (cf2_arrstack_setNumElements): Use it.
2015-07-31 21:49:07 +02:00
Werner Lemberg b3fce59d52 Describe error values and strings in the documentation. 2015-07-23 13:35:07 +02:00
Werner Lemberg 1cdac10d3a [sfnt] Make `tt_face_get_name' member of the SFNT interface.
* include/freetype/internal/sfnt.h (TT_Get_Name_Func): New
prototype.
(SFNT_Interface, FT_DEFINE_SFNT_INTERFACE): New member `get_name'.

* src/sfnt/sfdriver.c (sfnt_interface): Updated.

* src/sfnt/sfobjs.c (tt_face_get_name): Tag it with `LOCAL_DEF'.
* src/sfnt/sfobjs.h: Add prototype for it.
2015-07-07 14:04:44 +02:00
Werner Lemberg eb1bba9be4 Fix some clang compiler warnings.
* src/base/ftoutln.c (FT_Outline_EmboldenXY), src/cff/cf2intrp.c
(cf2_interpT2CharString), src/truetype/ttgload.c
(load_truetype_glyph), src/truetype/ttgxvar.c (tt_handle_deltas),
src/truetype/ttinterp.c (Ins_INSTCTRL): Fix signedness issues.
2015-06-30 09:46:39 +02:00
Alexei Podtelezhnikov 884e4e67ee [base] Implement fast vector normalization.
The function uses Newton's iterations instead of dividing vector
components by its length, which needs a square root. This is,
literally, a bit less accurate but a lot faster.

* src/base/ftcalc.c (FT_Vector_NormLen): New function.
2015-06-29 22:32:05 -04:00
Werner Lemberg 392cf22f8a Another adjustment to header locations.
This change is a result of a discussion thread on freetype-devel

  http://lists.nongnu.org/archive/html/freetype-devel/2015-06/msg00041.html

Re-introduce the `freetype2' subdirectory for all FreeType header
files after installation, and rename the `freetype2' subdirectory in
the git repository to `freetype'.

* include/freetype2: Renamed to...
* include/freetype: This.

* CMakeLists.txt (PUBLIC_HEADERS, PUBLIC_CONFIG_HEADERS,
PRIVATE_HEADERS): Updated.
Update creation of `ftconfig.h'.
Install generated `ftconfig.h'.

* Jamfile (HDRMACRO, RefDoc), autogen.sh: Updated.

* builds/amiga/include/config/ftconfig.h, builds/freetype.mk
(PUBLIC_DIR), builds/symbian/bld.inf, builds/toplevel.mk (work),
builds/unix/freetype2.in: Updated.

* builds/unix/freetype-config.in: Updated.
* builds/unix/configure.raw: Don't check for `rmdir'.
* builds/unix/unix-def.in (DELDIR): Use `rm -rf', which is portable
according to the autoconf info manual.
* builds/unix/install.mk (install, uninstall,
distclean_project_unix): Update and simplify.

* builds/wince/*, builds/windows/*: Updated.

* devel/ft2build.h, include/ft2build.h: Updated.

* include/freetype2/config/ftheader.h,
include/freetype2/internal/ftserv.h,
include/freetype2/internal/internal.h: Update all header file
macros.

* src/tools/chktrcmp.py (TRACE_DEF_FILES): Updated.

* docs/*: Updated.
2015-06-26 06:48:00 +02:00
Werner Lemberg fae3820764 Simplify header file hierarchy.
This large patch changes the header file directory layout from
`include/freetype/...' to `include/...', effectively removing one
level.  Since the file `ft2build.h' is also located in `include'
(and it stays there even after installation), all FreeType header
files are now in a single directory.

Applications that use (a) `freetype-config' or FreeType's
`pkg-config' file to get the include directory for the compiler, and
(b) the documented way for header inclusion like

  #include <ft2build.h>
  #include FT_FREETYPE_H
  ...

don't need any change to the source code.

* include/freetype/*: Move up to...
* include/*: ... this directory.

* builds/amiga/include/freetype/*: Move up to...
* builds/amiga/include/*: ... this directory.

*/*: Essentially do `s@/freetype/@/@' where appropriate.

* CMakeList.txt: Simplify.
* builds/unix/freetype-config.in, builds/unix/freetype2.in: For
`--cflags', return a single directory.
* builds/unix/install.mk (install): No longer try to remove `cache'
and `internal' subdirectories; instead, remove the `freetype'
subdirectory.
2013-11-13 08:55:46 +01:00
Werner Lemberg b1d97810c9 Improve comment. 2013-11-06 06:52:13 +01:00
Werner Lemberg 29bca65dda Improve documentation of `FT_Load_Sfnt_Table'. 2013-11-05 23:46:25 +01:00
Werner Lemberg 35b0818986 Fix Savannah bug #40451.
Simply apply the patch from the bug report.

* builds/unix/ftconfig.in, builds/vms/ftconfig.h,
include/freetype/config/ftconfig.h: The used #pragma directives only
work with gcc versions 4.6 and higher.
2013-11-02 08:28:41 +01:00
Werner Lemberg 0c61c096b8 Comment fixes. 2013-10-28 05:09:21 +01:00
Werner Lemberg ee5105107b [sfnt] Implement support for `OS/2' table version 5.
See

  http://typedrawers.com/discussion/470/new-microsoft-size-specific-design-selection-mechanism

for the announcement.

* include/freetype/tttables.h (TT_OS2): Add fields
`usLowerPointSize' and `usUpperPointSize'.  Since FreeType returns
this structure only as a pointer through `FT_Get_Sfnt_Table', there
shouldn't be any ABI problems.

* src/sfnt/ttload.c (tt_face_load_os2): Implement it.

* docs/CHANGES: Updated.
2013-10-27 07:25:35 +01:00
Dave Arnold 4cfa8fc5be Comment on no-stem-darkening & darkening-parameters 2013-10-23 21:31:00 +02:00
Werner Lemberg 1eb06e67a0 Minor doc improvement. 2013-10-22 10:42:38 +02:00
Chongyu Zhu 41632b58ef [arm] Fix thumb2 inline assembly under LLVM.
When using `ADD' with an immediate operand, the instruction is
actually `ADD Rd, Rn, #<imm12>', that is, the maximum of the
immediate operand cannot exceed 4095.  It will fail to compile with
LLVM.

However, in GCC, due to some legacy compatibility considerations,
`ADD.W' will be automatically emitted when the immediate operand is
larger than 4095.

* builds/unix/ftconfig.in, include/freetype/config/ftconfig.h
(FT_MulFix_arm) [__GNUC__]: Support clang compiler.

* src/truetype/ttinterp.c (TT_MulFix14_arm) [__GNUC__]: Ditto.
2013-10-15 11:40:34 +02:00
Alexei Podtelezhnikov 52381c14e3 * include/freetype/ftoutln.h: Correct FT_Outline_Get_Orientation
algorithm description.
2013-09-11 23:25:56 -04:00
Werner Lemberg 00ea2a133b [doc] s/which/that/ where appropriate.
Note that this is a try by a non-native English speaker whose mother
language (German) doesn't have this distinction at all...
2013-09-03 11:33:10 +02:00
Werner Lemberg 504f5b4a8d Fix Savannah bug #39905 (documentation only). 2013-09-02 22:08:12 +02:00
Werner Lemberg 85a7fdf3c6 [sfnt] Fix frame access while reading WOFF table directory.
* src/sfnt/sfobjs.c (woff_open_font): Using single memory frame
while reading the directory entries for the whole loop.
2013-08-29 21:03:05 +02:00
Werner Lemberg d689d1cf78 Implement support for WOFF containers.
We simply synthesize a SFNT from the WOFF, create a memory stream
for the new data, and load the SFNT as usual.

Does NOT add any API to access WOFF metadata or private blocks.

* include/freetype/internal/tttypes.h (WOFF_HeaderRec,
WOFF_TableRec): New structures.

* include/freetype/tttags.h (TTAG_wOFF): New macro.

* src/base/ftobjs.c (FT_Open_Face): Set `stream' after calling
`open_face'.

* src/sfnt/sfobjs.c [FT_CONFIG_OPTION_SYSTEM_ZLIB]: Include
`FT_GZIP_H'.
(WRITE_BYTE, WRITE_USHORT, WRITE_ULONG): New temporary macros for
writing to a stream.
(sfnt_stream_close, compare_offsets, woff_open_font): New functions.
(sfnt_open_font): Handle `TTAG_wOFF'.
(sfnt_init_face): Set `stream' after calling `sfnt_open_font'.

* src/truetype/ttobjs.c (tt_face_init): Set `stream' after calling
`sfnt->init_face'.

* src/base/ftobjs.c (open_face): Use a pointer to FT_Stream as an
argument so that a changed stream survives.
Update callers.
2013-08-29 17:53:40 +02:00
Werner Lemberg dc240524ff [gzip] New function `FT_Gzip_Uncompress'.
This is modeled after zlib's `uncompress' function.  We need this
for WOFF support.

* include/freetype/ftgzip.h, src/gzip/ftgzip.c (FT_Gzip_Uncompress):
New function.

* src/gzip/rules.mk: Rewrite to better reflect dependencies.
2013-08-29 17:53:24 +02:00