Commit Graph

91 Commits

Author SHA1 Message Date
Alexei Podtelezhnikov 410f3799b6 [smooth] Harmony LCD rendering.
This is a new technology for LCD-optimized rendering. It capitalizes
on the fact that each color channel grid is shifted by a third of a
pixel.  Therefore it is logical to render 3 separate monochrome
bitmaps shifting the outline by 1/3 pixel, and then combine them.
Importantly, the resulting output does not require additional LCD
filtering.

* src/smooth/ftsmooth.c (ft_smooth_render_generic)
[!FT_CONFIG_OPTION_SUBPIXEL_RENDERING]: Implement new LCD-optimized
rendering.

* include/freetype/ftlcdfil.h, include/freetype/freetype.h,
include/freetype/config/ftoption.h, devel/ftoption.h: Updated
documentation.
2017-08-08 22:29:51 -04:00
Alexei Podtelezhnikov 75cb071b3f [sfnt] Synthesize a Unicode charmap if one is missing.
* src/sfnt/ttcmap.h (tt_cmap_unicode_class_rec): Declare it.
* src/sfnt/ttcmap.c (tt_get_glyph_name, tt_cmap_unicode_init,
tt_cmap_unicode_done, tt_cmap_unicode_char_index,
tt_cmap_unicode_char_next, tt_cmap_unicode_class_rec): Implement
synthetic Unicode charmap class.
(tt_get_cmap_info): Make sure the callback is available.

* src/sfnt/sfobjs.c (sfnt_load_face)
[FT_CONFIG_OPTION_POSTSCRIPT_NAMES]: If Unicode charmap is missing,
synthesize one.

* include/freetype/config/ftoption.h: Document it.
* devel/ftoption.h: Ditto.
2017-06-21 22:52:37 -04:00
Werner Lemberg e5595784f4 Fix preprocessor warning.
* devel/ftoption.h, include/freetype/config/ftoption.h: Test whether
TT_CONFIG_OPTION_SUBPIXEL_HINTING is defined before checking its
value.
2017-03-17 21:34:08 +01:00
Werner Lemberg 08fd250e1a [pcf] Make long family names configurable.
The change from 2016-09-29 was too radical (except for people using
the openSuSE GNU/Linux distribution).  To ameliorate the situation,
PCF_CONFIG_OPTION_LONG_FAMILY_NAMES gets introduced which controls
the feature; if set, a new PCF property option
`no-long-family-names' can be used to switch this feature off.

* include/freetype/config/ftoption.h, devel/ftoption.h
(PCF_CONFIG_OPTION_LONG_FAMILY_NAMES): New option.

* include/freetype/ftpcfdrv.h: New header file (only containing
comments currently, used for building the documentation).

* include/freetype/config/ftheader.h (FT_PCF_DRIVER_H): New macro.

* src/pcf/pcf.h (PCF_Driver): Add `no_long_family_names' field.

* src/pcf/pcfdrivr.c: Include FT_SERVICE_PROPERTIES_H and
FT_PCF_DRIVER_H.
(pcf_property_set, pcf_property_get): New functions.
(pcf_service_properties): New service.
(pcf_servives): Updated.
(pcf_driver_init) [PCF_CONFIG_OPTION_LONG_FAMILY_NAMES]: Handle
`no_long_family_names'.

* src/pcf/pcfread.c (pcf_load_font): Handle `no_long_family_names'
and PCF_CONFIG_OPTION_LONG_FAMILY_NAMES.

* docs/CHANGES: Updated.
2017-01-09 11:30:32 +01:00
Werner Lemberg 563ae78022 Update copyright year. 2017-01-04 20:16:34 +01:00
Werner Lemberg 7ba2ae7a59 Synchronize `ftoption.h' comments. 2016-09-02 08:21:18 +02:00
Werner Lemberg 84d3df7501 Implement handling of `FREETYPE_PROPERTIES' environment variable.
Recognizing properties follows in another commit.

* devel/ftoption.h, include/freetype/config/ftoption.h
(FT_CONFIG_OPTION_ENVIRONMENT_PROPERTIES): New macro.

* include/freetype/config/ftstdlib.h (ft_getenv): New macro.

* src/base/ftinit.c (ft_set_default_properties): New function to
parse `FREETYPE_PROPERTIES' and calling `ft_property_string_set'.
(FT_Init_FreeType): Updated.
2016-07-11 00:12:11 +02:00
Alexei Podtelezhnikov 2a4c823f89 Parentheses. 2016-05-20 22:04:01 -04:00
Nikolaus Waxweiler 596157365a [truetype] New implementation of v38 bytecode interpreter [1/3].
This patch prepares data structures and the like.

See added comments in `ttinterp.h' for more information on this and
the following commits in the series.

* devel/ftoption.h, include/freetype/config/ftoption.h
(TT_CONFIG_OPTION_SUBPIXEL_HINTING): Assign values to differentiate
between subpixel versions.
(TT_SUPPORT_SUBPIXEL_HINTING_INFINALITY,
TT_SUPPORT_SUBPIXEL_HINTING_MINIMAL): New macros.

* include/freetype/ftttdrv.h (TT_INTERPRETER_VERSION_40): New macro.

* include/freetype/internal/tttypes.h (TT_FaceRec): Updated.

* src/truetype/ttinterp.h (TT_ExecContextRec): Define new fields
`subpixel_hinting_lean', `vertical_lcd_lean',
`backwards_compatibility', `iupx_called', iupy_called', and
`grayscale_cleartype' for new hinting mode.

* src/truetype/ttdriver.c (tt_property_set): Handle v38 and v40
interpreters conditionally.

* src/truetype/ttgload.c (TT_Hint_Glyph): Save phantom points unless
in v38 backwards compatibility mode.
Updated.
(compute_glyph_metrics): Add v38 backwards compatibility mode
constraint for adjusting advance widths.
Updated.
(tt_loader_init): Handle new flags `subpixel_hinting_lean',
`grayscale_cleartype', and `vertical_lcd_lean'.
Updated.
(tt_get_metrics, TT_Process_Simple_Glyph, TT_LOADER_SET_PP):
Updated.

* src/truetype/ttobjs.c (tt_driver_init): Conditionally set
default interpreter version number.

* src/truetype/ttsubpix.c, src/truetype/ttsubpix.h: Updated.
2016-05-18 06:57:59 +02:00
Nikolaus Waxweiler 5b7871be12 Remove unpatented hinter (2/3).
* devel/ftoption.h (TT_CONFIG_OPTION_UNPATENTED_HINTING): Remove.
2016-01-28 12:27:46 +01:00
Werner Lemberg 9adeab6452 Update copyright year. 2016-01-13 11:54:10 +01:00
Werner Lemberg 37412ff9f4 Don't use macro names that contain `__' [1/2].
Such macro names are reserved for both C and C++.

*/*: Replace macros of the form `__XXX_H__' with `XXX_H_'.
2016-01-12 21:37:13 +01:00
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 911171ac49 Minor. 2015-10-15 21:22:16 +02:00
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 8502c98b15 Fix Savannah bug #45097.
We no longer `pollute' the namespace of possible header file names;
instead we move `ft2build.h' up by one level so that it gets
installed in the default include directory (e.g.,
/usr/local/include).  After this commit, only `ft2build.h' stays in
the compiler's include path.

No visible changes for the user who follows the standard FreeType
header inclusion rules.

* include/*: Move to ...
* include/freetype2/*: This directory, except `ft2build.h'.

* CMakeLists.txt (PUBLIC_HEADERS, PUBLIC_CONFIG_HEADERS,
PRIVATE_HEADERS), 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/install.mk (install, uninstall),
builds/unix/freetype2.in: Updated.

* builds/unix/freetype-config.in: Updated.
Emit -I directory only if it is not `/usr/include'.

* 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.
2015-06-22 06:35:23 +02:00
Werner Lemberg 14df6b1a63 [autofit] By default, enable warping code but switch off warping.
Suggested by Behdad.

* include/config/ftoption.h: Define AF_CONFIG_OPTION_USE_WARPER.

* src/autofit/afmodule.c (af_autofitter_init): Initialize `warping'
with `false'.
2015-04-22 11:14:35 +02:00
Werner Lemberg 12661a5ae0 [autofit] Introduce `warping' property.
This code replaces the debugging hook from the previous commit with
a better, more generic solution.

* include/ftautoh.h: Document it.

* src/autofit/afmodule.h (AF_ModuleRec)
[AF_CONFIG_OPTION_USE_WARPER]: Add `warping' field.

* src/autofit/afmodule.c (_af_debug_disable_warper): Remove.
(af_property_set, af_property_get, af_autofitter_init)
[AF_CONFIG_OPTION_USE_WARPER]: Handle `warping' option.

* src/autofit/afhints.h (AF_HINTS_DO_WARP): Remove use of the no
longer existing `_af_debug_disable_warper'.

* src/autofit/afcjk.c (af_cjk_hints_init), src/autofit/aflatin.c
(af_latin_hints_init), src/autofit/aflatin2.c (af_latin2_hints_init)
[AF_CONFIG_OPTION_USE_WARPER]: Add `AF_SCALER_FLAG_NO_WARPER' to the
scaler flags if warping is off.

* src/autofit/aftypes.h: Updated.
2015-04-21 07:13:59 +02:00
Werner Lemberg 772a5e5ddd Update links to Apple's TrueType specification. 2015-03-20 09:40:10 +01:00
Werner Lemberg d7db7fb54f Minor. 2015-02-19 23:09:32 +01:00
Werner Lemberg f57fc59e01 Run `src/tools/update-copyright'. 2015-01-17 20:41:43 +01:00
Behdad Esfahbod 5163425344 [base] Don't allocate `library->raster_pool' anymore.
It's unused after the following commits:

  [raster] Allocate render pool for mono rasterizer on the stack.
  [raster] Remove 5-level gray AA mode from monochrome rasterizer.

The value of FT_RENDER_POOL_SIZE still serves the purpose it used to
serve, which is, to adjust the pool size.  But the pool is now
allocated on the stack on demand.

* src/base/ftobjs.c (FT_New_Library, FT_Done_Library): Implement.
2015-01-14 18:30:59 +01:00
Werner Lemberg 01be130d73 [truetype] Remove TT_CONFIG_OPTION_INTERPRETER_SWITCH.
Behdad suggested this code simplification, and nobody objected...

* include/config/ftoption.h, devel/ftoption.h
(TT_CONFIG_OPTION_INTERPRETER_SWITCH): Remove.

* src/truetype/ttinterp.c [TT_CONFIG_OPTION_INTERPRETER_SWITCH]:
Remove related code.
(ARRAY_BOUND_ERROR): Use do-while loop.
2015-01-10 23:05:37 +01:00
Werner Lemberg fe15152ce7 [cff] Test valid darkening parameter macros in `ftoption.h'.
We no longer need an otherwise unused typedef that can cause a gcc
warning.
Problem reported by Alexei.

* src/cff/cffobjs.c (cff_driver_init): Use
`CFF_CONFIG_OPTION_DARKENING_PARAMETER_XXX' macros directly.
(SET_DARKENING_PARAMETERS): Removed.
Compile time tests are now ...

* devel/ftoption.h, include/config/ftoption.h: ... here.
2014-10-25 05:56:59 +02:00
Werner Lemberg d0422b23d3 Whitespace. 2014-10-25 05:20:08 +02:00
Werner Lemberg dd570e99ab [cff] Work around bug in preprocessor of MSVC 2010.
We have been hit by

  https://connect.microsoft.com/VisualStudio/feedback/details/718976/msvc-pr

* devel/ftoption.h, include/config/ftoption.h: Replace
`CFF_CONFIG_OPTION_DARKENING_PARAMETERS' with eight macros
`CFF_CONFIG_OPTION_DARKENING_PARAMETER_{X,Y}{1,2,3,4}'.

* src/cff/cffobjs.c (SET_DARKENING_PARAMETERS): Removed.  We no
longer need double expansion.
(SET_DARKENING_PARAMETERS_0): Renamed to ...
(SET_DARKENING_PARAMETERS): ... this.
Update call.
2014-10-23 19:57:37 +02:00
Werner Lemberg 1a1750fb8a [cff] Add `CFF_CONFIG_OPTION_DARKENING_PARAMETERS' config macro.
* devel/ftoption.h, include/config/ftoption.h
(CFF_CONFIG_OPTION_DARKENING_PARAMETERS): New macro.

* src/cff/cffobjs.c (SET_DARKENING_PARAMETERS,
SET_DARKENING_PARAMETERS_0): New macros.
(cff_driver_init): Use new macros.
2014-10-16 22:54:01 +02:00
Werner Lemberg 1924134710 Introduce `coverages'.
Coverages are the interface to the HarfBuzz library to access
OpenType features for handling glyphs not addressable by the cmap.

Right now, compilation of HarfBuzz is only added to the development
build.  A solution for standard build mode will be delayed until
HarfBuzz gets split into two libraries to avoid mutual dependencies
between FreeType and HarfBuzz.

Note that this is only a first step in handling coverages, basically
providing the framework only.  Code for handling selected OpenType
features (this is, actually using the data in `afcover.h') will
follow.

* devel/ftoption.h, include/config/ftoption.h
(FT_CONFIG_OPTION_USE_HARFBUZZ): New macro.

* src/autofit/hbshim.c, src/autofit/hbshim.h, src/autofit/afcover.h:
New files.

* src/autofit/afscript.h: Add HarfBuzz script name tags.

* src/autofit/afstyles.h: Add default coverage enumeration values.

* src/autofit/aftypes.h: Update use of `SCRIPT' and `STYLE' macros.
(AF_Coverage): New enumeration (generated by `afcover.h').
(AF_StyleClassRec): New member `coverage'.
(AF_DEFINE_STYLE_CLASS): Updated.

* include/internal/fttrace.h: Add `afharfbuzz' for tracing coverage
data.

* src/autofit/afglobal.h: Update use of `SCRIPT' and `STYLE' macros.
(AF_SCRIPT_FALLBACK): Renamed to ...
(AF_STYLE_FALLBACK): ... this.

* src/autofit/afglobal.c: Include `hbshim.c'.
Update use of `SCRIPT' and `STYLE' macros.
(af_face_globals_compute_style_coverage)
[FT_CONFIG_OPTION_USE_HARFBUZZ]: Call `af_get_coverage'.
Update.

* src/autofit/afmodule.h (AF_ModuleRec):
s/fallback_script/fallback_style/.

* src/autofit/afmodule.c (af_property_set): Adapt handling of
`fallback-script' property to set a fallback style.
(af_property_get, af_autofitter_init): Updated.

* src/autofit/afpic.c: Update use of `SCRIPT' and `STYLE' macros.

* src/autofit/afranges.h: Update use of `SCRIPT' macro.

* src/autofit/autofit.c [FT_CONFIG_OPTION_USE_HARFBUZZ]: Include
`hbshim.c'.

* src/autofit/rules.mk (AUTOF_DRV_SRC): Add `hbshim.c'.
(AUTOF_DRV_H): Add `afcover.h'.

* builds/freetype.mk (INCLUDE_FLAGS) [DEVEL_DIR]: Use pkg-config for
all libraries needed by FreeType.
2013-12-21 21:39:04 +01:00
Werner Lemberg c52b129ccd * builds/unix/ft2unix.h: Remove. No longer necessary.
* builds/unix/install.mk (install): Updated.
2013-11-13 10:06:00 +01:00
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 fe4f571f99 * Version 2.5.0.1 released.
===========================

Tag sources with `VER-2-5-0-1'.

* include/freetype/config/ftoption.h: Undefine
CFF_CONFIG_OPTION_OLD_ENGINE.
* devel/ftoption.h: Define CFF_CONFIG_OPTION_OLD_ENGINE.
2013-06-19 23:27:47 +02:00
Werner Lemberg 2429dc3d7c Add CFF_CONFIG_OPTION_OLD_ENGINE configuration option.
This controls whether the old FreeType CFF engine gets compiled into
FreeType.  It is now disabled by default.

* devel/ftoption.h, include/freetype/config/ftoption.h
(CFF_CONFIG_OPTION_OLD_ENGINE): New macro.

* src/cff/cffdrivr.c (cff_property_set), src/cff/cffgload.c
(CFF_Operator, cff_argument_counts, cff_builder_add_point,
cff_operator_seac, cff_decoder_parse_charstrings, cff_slot_load),
src/cff/cffgload.h, src/cff/cffobjs.c (cff_driver_init): Use
CFF_CONFIG_OPTION_OLD_ENGINE to guard the affected code.

* docs/CHANGES: Updated.
2013-06-03 12:41:58 +02:00
Behdad Esfahbod 760d342d37 Add support for color embedded bitmaps (eg. color emoji).
A new load flag, FT_LOAD_COLOR, makes FreeType load color
embedded-bitmaps, following this draft specification

  https://color-emoji.googlecode.com/git/specification/v1.html

which defines two new SFNT tables, `CBDT' and `CBLC' (named and
modeled after `EBDT' and `EBLC', respectively).  The color bitmaps
are stored in the new FT_PIXEL_MODE_BGRA format to represent BGRA
pre-multiplied sRGB images.  If PNG support is available, PNG color
images as defined in the same proposed specification are supported
also.

Note that color bitmaps are converted to grayscale if client didn't
ask for color.

* builds/unix/configure.raw: Search for libpng.
Add `--without-png' option.

* devel/ftoption.h, include/freetype/config/ftoption.h
(FT_CONFIG_OPTION_USE_PNG): New macro.

* include/freetype/freetype.h (FT_LOAD_COLOR): New load flag.

* include/freetype/ftimage.h (FT_Pixel_Mode): Add
`FT_PIXEL_MODE_BGRA'.

* include/freetype/tttags.h (TTAG_CBDT, TTAG_CBLC): New tags.

* src/base/ftbitmap.c (FT_Bitmap_Embolden): Updated.
(ft_gray_for_premultiplied_srgb_bgra): New function.
(FT_Bitmap_Convert): Handle FT_PIXEL_MODE_BGRA.

* src/sfnt/pngshim.c, src/sfnt/pngshim.h: New files.

* src/sfnt/sfnt.c: Include `pngshim.c'.

* src/sfnt/ttsbit.c: Include FT_BITMAP_H and `pngshim.h'
(tt_face_load_eblc): Load `CBLC'.
(tt_sbit_decoder_init): Load `CBDT'.
(tt_sbit_decoder_alloc_bitmap): Pass load flags to select between
color and grayscale bitmaps.
Set `num_grays'.  This is used by `ftview' to choose the blending
algorithm.
(tt_sbit_decoder_load_byte_aligned,
tt_sbit_decoder_load_bit_aligned, tt_sbit_decoder_load_compound,
tt_sbit_decoder_load_image): Pass load flag.
s/write/pwrite/.
Don't call `tt_sbit_decoder_alloc_bitmap'.
Updated.
(tt_sbit_decoder_load_png) [FT_CONFIG_OPTION_USE_PNG]: New function.
(tt_sbit_decoder_load_bitmap): Pass load flag.
Handle new glyph formats 17, 18, and 19.
Call `tt_sbit_decoder_alloc_bitmap'.
Flatten color bitmaps if necessary.
(tt_face_load_sbit_image): Updated.

* src/sfnt/rules.mk (SFNT_DRV_SRC): Add `pngshim.c'.

* docs/CHANGES: Updated.
2013-05-29 11:36:18 +02:00
Werner Lemberg f6aa089f12 */* [FT_CONFIG_OPTION_OLD_INTERNALS]: Remove macro and guarded code. 2013-05-10 07:58:47 +02:00
Werner Lemberg 7190098098 Minor. 2013-01-16 20:08:35 +01:00
Werner Lemberg e4ecce3bfe Disable FT_CONFIG_OPTION_OLD_INTERNALS.
After the next release we are going to remove the code completely.

* devel/ftoption.h, include/freetype/config/ftoption.h
(FT_CONFIG_OPTION_OLD_INTERNALS): Comment out.
* docs/CHANGES: Document it.
2013-01-11 09:02:22 +01:00
Infinality 79e36baebb [truetype] Support subpixel hinting.
This is the large, famous `Infinality' patch to support ClearType
bytecode which has been available from
http://www.infinality.net/blog/ for some time, and which has been
refined over the last years.  While still experimental, it is now
mature enough to be included directly into FreeType.

Most of the code is based on the ClearType whitepaper written by
Greg Hitchcock

  http://www.microsoft.com/typography/cleartype/truetypecleartype.aspx

which gives a detailed overview of the necessary changes to the
Microsoft rasterizer so that older fonts are supported.  However, a
lot of details are still missing, and this patches provides a
framework to easily handle rendering issues down to the glyph level
of certain fonts.

Note that ClearType support is not completely implemented!  In
particular, full support for the options `compatible_widths',
`symmetrical_smoothing, and `bgr' (via the GETINFO bytecode
instruction) is missing.

* src/truetype/ttsubpix.c: New file, providing code to handle
`tweaks', this is, rules for certain glyphs in certain fonts
(including wildcards) which need a special treatment.

* src/truetype/ttsubpix.h: New file, holding the tweaking rules.

* include/freetype/config/ftoption.h, src/devel/ftoption.h
(TT_CONFIG_OPTION_SUBPIXEL_HINTING): New macro.

* include/freetype/internal/ftobjs.h (FT_PIX_FLOOR_GRID,
FT_PIX_ROUND_GRID, FT_PIX_CEIL_GRID): New macros.

* src/truetype/truetype.c [TT_USE_BYTECODE_INTERPRETER]: Include
`ttsubpix.c'.

* src/truetype/ttgload.c: Include `ttsubpix.h'.
[All changes below are guarded by TT_CONFIG_OPTION_SUBPIXEL_HINTING.]

(tt_get_metrics): Set tweak flags.
(TT_Hint_Glyph): Call `FT_Outline_EmboldenXY' if necessary.
(TT_Process_Simple_Glyph): Compensate emboldening if necessary.
(compute_glyph_metrics): Handle `compatible widths' option.
(tt_loader_init): Handle ClearType GETINFO information bits.

* src/truetype/rules.mk (TT_DRC_SRC): Updated.

* src/truetype/ttinterp.c: Include `ttsubpix.h'.
[Where necessary, changes below are guarded by
TT_CONFIG_OPTION_SUBPIXEL_HINTING.]

(Direct_Move, Direct_Move_X): Extended.
(Round_None, Round_To_Grid, Round_To_Half_Grid, Round_Down_To_Grid,
Round_Up_To_Grid, Round_To_Double_Grid, Round_Super, Round_Super_45,
SetSuperRound): Add parameter to handle the number of grid lines per
pixel.
(SET_SuperRound, ROUND_None, CUR_Func_round): Updated.
(DO_SROUND, DOS45ROUND, DO_ODD, DO_EVEN): Updated.
(DO_ROUND, DO_NROUND): Updated.
(DO_RS): Take care of `Typeman' bytecode patterns.
(Ins_FDEF): Add some debugging code.  Commented out.
(Ins_ENDF): Restore state.
(Ins_CALL, Ins_LOOPCALL): Handle inline delta functions.
(Ins_MD): Handle `Vacuform' rounds.
(Move_Zp2_Point, Ins_SHPIX, Ins_MSIRP, Ins_MDAP, Ins_MIAP,
Ins_MDRP, Ins_MIRP): Handle tweaks.
(Ins_ALIGNRP): Add tweak guard.
(Ins_IUP, Ins_DELTAP): Handle tweaks.
(Ins_GETINFO): Handle new ClearType bits.
(TT_RunIns): Handle tweaks.

* src/truetype/ttinterp.h: Updated.
(SPH_TweakRule, SPH_ScaleRule): New structures for tweaks.
(TT_ExecContextRec): Add members for subpixel hinting support.

* src/truetype/ttobjs.h (TT_DefRecord): Add `inline_delta' member.
2012-06-18 10:36:06 +02:00
Werner Lemberg f1ec084292 s/maximal/maximum/ everywhere, s/minimal/minimum/ where appropriate. 2012-03-11 13:48:25 +01:00
Chris Morgan 3abf617b5e Add FT_CONFIG_OPTION_DISABLE_STREAM_SUPPORT.
Useful for embedded systems which don't need file stream support.

* src/base/ftsystem.c, src/base/ftobjs.c (FT_Stream_New): Implement
it.
2011-07-20 06:48:08 +02:00
Werner Lemberg f3e2a97d5b Fix URLs. 2011-06-14 08:32:13 +02:00
Werner Lemberg d503b1bce2 Integrate autofitter debugging stuff.
* devel/ftoption.h, include/freetype/config/ftoption.h
(FT_DEBUG_AUTOFIT): New macro.

* include/freetype/internal/fttrace.h: Add trace components for
autofitter.

* src/autofit/aftypes.h (AF_LOG): Removed.
(_af_debug): Removed.

* src/autofit/*: s/AF_DEBUG/FT_DEBUG_AUTOFIT/.
s/AF_LOG/FT_TRACE5/.
Define FT_COMPONENT where necessary.
2011-04-18 19:05:28 +02:00
Werner Lemberg 576fc2c06e Add AF_CONFIG_OPTION_USE_WARPER to control the autofit warper.
* devel/ftoption.h, include/freetype/config/ftoption.h
(AF_CONFIG_OPTION_USE_WARPER): New macro.
* src/autofit/aftypes.h (AF_USE_WARPER): Remove.

* src/autofit/*: s/AF_USE_WARPER/AF_CONFIG_OPTION_USE_WARPER/.

* src/autofit/afwarp.c [!AF_CONFIG_OPTION_USE_WARPER]: Replace dummy
variable assignment with a typedef.
2011-03-02 03:52:36 +01:00
Werner Lemberg 13a91639a5 Enable bzip2 support for `make devel'. 2010-12-31 19:18:15 +01:00
Joel Klinghed ed913c2151 Add bzip2 compression support to handle *.pcf.bz2 files.
* builds/unix/configure.raw: Test for libbz2 library.

* devel/ftoption.h, include/freetype/config/ftoption.h
(FT_CONFIG_OPTION_USE_BZIP2): Define.
* include/freetype/config/ftheader.h (FT_BZIP2_H): Define.

* include/freetype/ftbzip2.h: New file.

* src/bzip2/*: New files.

* src/pcf/pcf.h: s/gzip_/comp_/.
* src/pcf/pcfdrvr.c: Include FT_BZIP2_H.
s/gzip_/comp_/.
(PCF_Face_Init): Handle bzip2 compressed files.

* docs/formats.txt, modules.cfg: Updated.
2010-12-31 16:59:33 +01:00
Werner Lemberg 7e370676f9 Synchronize devel/ftoption.h. 2010-08-06 21:59:22 +02:00
Werner Lemberg 32dc43a5cc `make devel' fails if FT_CONFIG_OPTION_OLD_INTERNALS is set.
* devel/ftoption.h: Synchronize with
include/freetype/config/ftoption.h.
2010-08-04 15:21:20 +02:00
Werner Lemberg 6bbbbc1523 TrueType hinting is no longer patented.
* include/freetype/config/ftoption.h, devel/ftoption.h
(TT_CONFIG_OPTION_BYTECODE_INTERPRETER): Define.
(TT_CONFIG_OPTION_UNPATENTED_HINTING): Undefine.

* docs/CHANGES, docs/INSTALL, include/freetype/freetype.h: Updated.
* docs/TRUETYPE, docs/PATENTS: Removed.
2010-07-04 07:37:56 +02:00
Werner Lemberg db9a41e81b * devel/ftoption.h [FT_CONFIG_OPTION_PIC]: Define.
Other minor documentation fixes.
2010-02-09 15:43:24 +01:00
Ralph Giles bc0082d512 Improve the comment describing the FT_CONFIG_OPTION_INCREMENTAL option. 2010-01-05 19:41:22 +01:00