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ChangeLog.24
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ChangeLog.24
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2013-05-08 Werner Lemberg <wl@gnu.org>
* Version 2.4.12 released.
==========================
Tag sources with `VER-2-4-12'.
* docs/VERSION.DLL: Update documentation and bump version number to
2.4.12.
* README, Jamfile (RefDoc),
builds/win32/vc2005/freetype.vcproj, builds/win32/vc2005/index.html,
builds/win32/vc2008/freetype.vcproj, builds/win32/vc2008/index.html,
builds/win32/vc2010/freetype.vcxproj, builds/win32/vc2010/index.html,
builds/win32/visualc/freetype.dsp,
builds/win32/visualc/freetype.vcproj,
builds/win32/visualc/index.html, builds/win32/visualce/freetype.dsp,
builds/win32/visualce/freetype.vcproj,
builds/win32/visualce/index.html,
builds/wince/vc2005-ce/freetype.vcproj,
builds/wince/vc2005-ce/index.html,
builds/wince/vc2008-ce/freetype.vcproj,
builds/wince/vc2008-ce/index.html: s/2.4.11/2.4.12/, s/2411/2412/.
* include/freetype/freetype.h (FREETYPE_PATCH): Set to 12.
* builds/unix/configure.raw (version_info): Set to 16:1:10.
2013-05-08 Werner Lemberg <wl@gnu.org>
* docs/CHANGES: Updated.
2013-05-08 Werner Lemberg <wl@gnu.org>
* src/autofit/aflatin.c (af_latin_metrics_scale_dim): Typo.
2013-05-05 Werner Lemberg <wl@gnu.org>
Synchronize `ftconfig.h'.
* builds/unix/ftconfig.in: Updated.
2013-05-05 Werner Lemberg <wl@gnu.org>
Fix compilation with C++.
* src/base/md5.c (body): Use proper cast.
2013-05-05 Werner Lemberg <wl@gnu.org>
Fix 64bit compilation issues.
* include/freetype/config/ftconfig.h [FT_LONG64]: Typedef
`FT_Int64' here.
* src/base/ftcalc.c: Remove typedef of `FT_Int64'.
(FT_DivFix): Fix cast.
* src/base/fttrigon.c: Remove typedef of `FT_Int64'.
2013-05-05 Werner Lemberg <wl@gnu.org>
[raster] Fix clang issues.
Fix suggested by <octoploid@yandex.com>.
* src/raster/ftraster.c (ULong): New typedef.
(SCALED): Add proper cast.
2013-05-04 Werner Lemberg <wl@gnu.org>
Fix clang fixes.
* src/base/fttrigon.c (ft_trig_prenorm, FT_Vector_Rotate): Use
correct types.
* src/cff/cf2intrp.c (cf2_interpT2CharString) <default>: Force
unsigned for computations.
* src/cff/cffgload.c (cff_decoder_parse_charstrings): Ditto.
* src/cff/cffparse.c (cff_parse_integer): Ditto.
* src/psaux/t1decode.c (t1_decoder_parse_charstrings): Ditto.
2013-05-04 Werner Lemberg <wl@gnu.org>
[cff] Make Adobe CFF engine work correctly on 64bit hosts.
Reported by numerous people on the `freetype-devel' list. Without
this fix, glyphs aren't properly aligned on a common baseline.
On 64bit systems, `FT_Pos' expands to `long int', having a width of
64bit. `CF2_Fixed' expands to `int' which is normally 32bit wide on
64bit hosts also. Wrong casts filled up the blues arrays with
incorrect values. Note that all blues values are accessed with the
`cf2_blueToFixed' macro which handles the 64bit to 32bit conversion.
* src/cff/cf2ft.h (cf2_getBlueValues, cf2_getOtherBlues,
cf2_getFamilyBlues, cf2_getFamilyOtherBlues): Use `FT_Pos' for
`data', not `CF2_Fixed'.
* src/cff/cf2ft.c (cf2_getBlueValues, cf2_getOtherBlues,
cf2_getFamilyBlues, cf2_getFamilyOtherBlues): Updated.
* src/cff/cf2blues.c (cf2_blues_init): Updated.
2013-05-04 Werner Lemberg <wl@gnu.org>
More fixes for clang's `sanitize' feature.
* src/base/ftcalc.c (FT_DivFix): Use unsigned values for
computations which use the left shift operator and convert to signed
as the last step.
* src/base/fttrigon.c (ft_trig_prenorm, FT_Vector_Rotate,
FT_Vector_Length, FT_Vector_Polarize): Ditto.
* src/cff/cffgload.c (cff_decoder_parse_charstrings): Simplify.
* src/cff/cffload.c (cff_subfont_load): Fix constant.
* src/cff/cffparse.c (cff_parse_integer, cff_parse_real, do_fixed,
cff_parse_fixed_dynamic): Use unsigned values for computations which
use the left shift operator and convert to signed as the last step.
* src/cid/cidload.c (cid_get_offset): Ditto.
* src/psaux/psconv.c (PS_Conv_ToFixed): Ditto.
* src/psaux/t1decode.c (t1_decoder_parse_charstrings): Ditto.
* src/truetype/ttinterp.c (TT_MulFix14, TT_DotFix14): Ditto.
2013-05-04 Werner Lemberg <wl@gnu.org>
Fix errors reported by clang's `sanitize' feature.
* include/freetype/internal/ftstream.h: Simplify and fix integer
extraction macros.
(FT_INT8_, FT_BYTE_I16, FT_BYTE_I32, FT_INT8_I16, FT_INT8_I32,
FT_INT8_I32, FT_INT8_U32): Removed.
(FT_PEEK_SHORT, FT_PEEK_LONG, FT_PEEK_OFF3, FT_PEEK_SHORT_LE,
FT_PEEK_LONG_LE, FT_PEEK_OFF3_LE): Use unsigned values for
computations and convert to signed as the last step.
* src/cff/cf2fixed.h (cf2_intToFixed, cf2_fixedToInt,
cf2_fracToFixed): Avoid shifts of negative values.
(cf2_intToFrac, cf2_fixedToFrac, cf2_fixedTo26Dot6): Removed,
unused.
* src/cff/cf2intrp.c (cf2_interpT2CharString) <cf2_cmdEXTENDEDNMBR,
default>: Use unsigned values for computations and convert to signed
as the last step.
Use proper types in tracing messages.
* src/cff/cffgload.c (cff_decoder_parse_charstrings): Use unsigned
values for computation of operands and convert to signed as the last
step.
Use proper type in tracing message.
2013-05-03 Werner Lemberg <wl@gnu.org>
* src/cff/cf2blues.c: Remove dead code.
2013-05-02 Chris Liddell <chris.liddell@artifex.com>
* src/cff/cffgload.c: Include FT_CFF_DRIVER_H.
2013-04-27 Werner Lemberg <wl@gnu.org>
* docs/CHANGES: Updated.
* README: Improved.
2013-04-13 Werner Lemberg <wl@gnu.org>
[cff] Add a new Type 2 interpreter and hinter.
This work, written by Dave Arnold <darnold@adobe.com> and fully
integrated into FreeType by me, is a donation by Adobe in
collaboration with Google. It is vastly superior to the old CFF
engine, and it will replace it soon. Right now, it is still off by
default, and you have to explicitly select it using the new
`hinting-engine' property of the cff driver.
For convenience, (most of) the new files are committed separately.
* include/freetype/config/ftheader.h (FT_CFF_DRIVER_H): New macro.
* include/freetype/ftcffdrv.h: New file to access CFF driver
properties.
* include/freetype/fterrdef.h (FT_Err_Glyph_Too_Big): New error
code.
* include/freetype/internal/fttrace.h: Add `cf2blues', `cf2hints',
and `cf2interp'.
* src/cff/cffgload.h (CFF_SubFont): New member `current_subfont'.
* src/cff/cffobjs.h (CFF_DriverRec): New members `hinting_engine'
and `no_stem_darkening'.
* src/cff/cfftypes.h (CFF_FontRec): New member `cf2_instance'.
* src/cff/cff.c: Include new files.
* src/cff/cffdrivr.c (cff_property_set, cff_property_get): Handle
`hinting-engine' and `no-stem-darkening' properties (only the Adobe
engine listens to them).
* src/cff/cffgload.c: Include `cf2ft.h'.
(cff_decoder_prepare): Initialize `current_subfont'.
(cff_build_add_point): Handle Adobe engine which uses 16.16
coordinates.
(cff_slot_load): Handle FT_LOAD_NO_SCALE and FT_LOAD_NO_HINTING
separately.
Choose rendering engine based on `hinting_engine' property.
* src/cff/cffload.c (cff_font_done): Call finalizer of the Adobe
engine.
* src/cff/cffobjs.c: Include FT_CFF_DRIVER_H.
(cff_driver_init): Set default property values.
* src/cff/rules.mk (CFF_DRV_SRC, CFF_DRV_H): Add new files.
* src/cff/cf2*.*: New files, containing the Adobe engine.
2013-04-12 Werner Lemberg <wl@gnu.org>
[cff] Minor code administration issues.
* src/cff/cffgload.c (check_points): Rename to...
(cff_check_points): ...this and make it FT_LOCAL.
(cff_builder_add_point, cff_builder_add_point1,
cff_builder_start_point, cff_builder_close_contour,
cff_lookup_glyph_by_stdcharcode, cff_get_glyph_data,
cff_free_glyph_data): Make them FT_LOCAL.
* src/cff/cffgload.h: Updated.
2013-04-12 Werner Lemberg <wl@gnu.org>
Add output bitmap checksums.
Use `FT2_DEBUG=bitmap:3' for tracing.
* src/base/md5.c, src/base/md5.h: New files, taken from
https://openwall.info/wiki/people/solar/software/public-domain-source-code/md5
* include/freetype/internal/fttrace.h: Add `bitmap'.
* src/base/ftobjs.c [FT_DEBUG_LEVEL_TRACE]: Include `md5.c'
(FT_Render_Glyph_Internal) [FT_DEBUG_LEVEL_TRACE]: For tracing,
convert resulting bitmap to a uniform format and compute a checksum.
Use `bitmap' category for the tracing message.
* src/base/rules.mk (BASE_H): Updated.
* docs/LICENSE.TXT: Updated.
2013-04-12 Werner Lemberg <wl@gnu.org>
[cff] Add framework for CFF properties.
* include/freetype/internal/ftserv.h (FT_DEFINE_SERVICEDESCREC7):
New macro.
* src/cff/cffdrivr.c: Include FT_SERVICE_PROPERTIES_H.
(cff_property_set, cff_property_get): New functions, still empty.
Define `cff_service_properties' service.
Update `cff_services'.
* src/cff/cffpic.h: Include FT_SERVICE_PROPERTIES_H.
(CFF_SERVICE_PROPERTIES_GET): New macro.
(CffModulePIC): Add `cff_service_properties'.
2013-04-03 Werner Lemberg <wl@gnu.org>
[bdf] Fix Savannah bug #38589.
* src/bdf/bdflib.c (_bdf_readstream): Thinko.
2013-03-31 Werner Lemberg <wl@gnu.org>
* configure: Use egrep, not grep.
Problem reported Mojca Miklavec <mojca.miklavec.lists@gmail.com>.
2013-03-29 Werner Lemberg <wl@gnu.org>
* include/freetype/ftlcdfil.h: Add description of color filtering.
Based on a contribution from Antti S. Lankila <alankila@bel.fi>
(Savannah bug #38607).
2013-03-23 Werner Lemberg <wl@gnu.org>
[autofit] Minor.
* src/autofit/afmodule.c (af_property_set): Typo.
(af_autofitter_init, af_autofitter_done): Use cast.
2013-03-21 Werner Lemberg <wl@gnu.org>
* configure: Automatically test for `gmake' also.
Suggested by Mojca Miklavec <mojca.miklavec.lists@gmail.com>.
2013-03-21 Peter Breitenlohner <peb@mppmu.mpg.de>
Respect CONFIG_SHELL from the environment.
Some large packages using FreeType have to use a broken (deficient)
/bin/sh. The configure scripts (as generated by Autoconf) are
clever enough to find a better shell and put that one into the
environment variable CONFIG_SHELL. If that environment variable is
already set the script skips the test and assumes to be already
running under a good shell.
* builds/unix/detect.mk: Honour CONFIG_SHELL.
* builds/unix/unix-def.in (SHELL): Define.
2013-03-21 Werner Lemberg <wl@gnu.org>
Fix Savannah patch #7971.
* configure: Handle MAKE environment variable also.
2013-03-17 Werner Lemberg <wl@gnu.org>
Fix Savannah bug #38538.
* builds/amiga/src/base/ftdebug.c, builds/win32/ftdebug.c,
builds/wince/ftdebug.c (FT_Throw): Add function.
2013-03-17 Werner Lemberg <wl@gnu.org>
[raster] Remove dead code.
* src/raster/rastpic.c (ft_raster1_renderer_class_pic_init)
src/smooth/ftspic.c (ft_smooth_renderer_class_pic_init): Do it.
2013-03-17 Werner Lemberg <wl@gnu.org>
* src/pshinter/pshpic.h (GET_PIC): Use correct container.
2013-03-15 Werner Lemberg <wl@gnu.org>
* include/freetype/ftmoderr.h: Fix commit from 2013-03-11.
The previous version was not backward compatible. Reported by
Behdad.
2013-03-14 Werner Lemberg <wl@gnu.org>
*/*: Use FT_ERR_EQ, FT_ERR_NEQ, and FT_ERR where appropriate.
FT_Err_XXX and friends are no longer directly used in the source
code.
2013-03-14 Werner Lemberg <wl@gnu.org>
New error management macros.
* include/freetype/fterrors.h (FT_ERR_XCAT, FT_ERR_CAT): Move to...
* include/freetype/fttypes.h: ... this file.
(FT_ERR, FT_ERR_EQ, FT_ERR_NEQ, FT_MODERR_EQ, FT_MODERR_NEQ): New
macros.
* include/freetype/freetype.h: Updated.
2013-03-14 Werner Lemberg <wl@gnu.org>
*/*: Use FT_Err_Ok only.
This is a purely mechanical conversion.
2013-03-14 Werner Lemberg <wl@gnu.org>
*/*: Use `FT_THROW'.
This is essentially a mechanical conversion, adding inclusion of
`FT_INTERNAL_DEBUG_H' where necessary, and providing the macros for
stand-alone compiling modes of the rasterizer modules.
To convert the remaining occurrences of FT_Err_XXX and friends it is
necessary to rewrite the code. Note, however, that it doesn't harm
if some cases are not handled since FT_THROW is a no-op.
2013-03-13 Werner Lemberg <wl@gnu.org>
Introduce `FT_THROW' macro.
The idea is to replace code like
return FT_Err_Foo_Bar;
or
return CFF_Err_Foo_Bar;
with
return FT_THROW( Foo_Bar );
The FT_THROW macro has two functions:
. It hides the module specific prefix.
. In debug mode, it calls the empty function `FT_Throw' which can
be thus used to set a breakpoint.
* include/freetype/internal/ftdebug.h (FT_THROW): New macro.
(FT_Throw): New prototype.
* src/base/ftdebug.c (FT_Throw): New function.
2013-03-12 Werner Lemberg <wl@gnu.org>
Remove `FT_KEEP_ERR_PREFIX'.
The idea is to always have FT_ERR_PREFIX available internally.
* include/freetype/fterrors.h: Use FT2_BUILD_LIBRARY to guard
undefinition of FT_ERR_PREFIX
* src/gxvalid/gxverror.h, src/otvalid/otverror.h,
src/sfnt/sferrors.h: Updated.
2013-03-11 Werner Lemberg <wl@gnu.org>
[gxvalid] Fix module error.
* src/gxvalid/gxverror.h (FT_ERR_BASE): Define as
FT_Mod_Err_GXvalid.
* include/freetype/ftmoderr.h: Add module error for `GXvalid'.
2013-03-11 Werner Lemberg <wl@gnu.org>
Always use module related error codes.
* src/cff/cffobjs.c (cff_face_init), src/type1/t1objs.c
(T1_Face_Init), src/type42/t42objs.c (T42_Face_Init): Use
`FT_ERROR_BASE'.
* src/type1/t1load.c (parse_encoding): Use
T1_Err_Unknown_File_Format.
2013-03-08 Werner Lemberg <wl@gnu.org>
[cff] Set `linear{Hori,Vert}Advance' for embedded bitmaps also.
Problem reported by Khaled Hosny <khaledhosny@eglug.org>.
* src/cff/cffgload.c (cff_slot_load): Implement it.
2013-02-23 Alexei Podtelezhnikov <apodtele@gmail.com>
[base] Fix commit ab02d9e8.
* src/base/ftbbox.c (BBox_Cubic_Check): Change scaling to msb of 22.
2013-02-19 Alexei Podtelezhnikov <apodtele@gmail.com>
[base] New bisecting BBox_Cubic_Check (disabled).
* src/base/ftbbox.c (BBox_Cubic_Check): New bisecting algorithm
for extremum search built around simple condition that defines
which half contains the extremum.
2013-02-18 Alexei Podtelezhnikov <apodtele@gmail.com>
[tools] Update BBox testing tool.
* src/tools/test_bbox.c: Add another cubic outline with exact BBox.
(REPEAT): Increase the number of benchmarking cycles.
(profile_outline): Tweak output formatting.
2013-02-02 Werner Lemberg <wl@gnu.org>
Fix Savannah bug #38235.
* builds/unix/configure.raw: Don't generate `freetype-config' and
`freetype.pc'.
* builds/unix/unix-def.in (FT2_EXTRA_LIBS, LIBBZ2, LIBZ,
build_libtool_libs, ft_version): New variables to be substituted.
(freetype-config, freetype.pc): New rules to generate those files.
* builds/unix/freetype-config.in: Remove code for handling `rpath'.
The use of $rpath has been accidentally removed in a patch from
2009-12-22, and apparently noone has missed it since.
Use `%' instead of `@' as a variable substitution marker.
Use quotes.
* builds/unix/freetype.in: Use `%' instead of `@' as a variable
substitution marker.
Use quotes.
2013-02-07 Werner Lemberg <wl@gnu.org>
* src/truetype/ttobjs.c (tt_size_run_prep): Reset more GS variables.
BTW, Greg agrees that the OpenType specification is missing the list
of GS variables which will always be reset to the default values
after the `prep' table has been executed.
2013-02-06 Werner Lemberg <wl@gnu.org>
* src/truetype/ttobjs.c (tt_size_run_prep): Reset reference points.
Up to now, we simply took a snapshot of the Graphics State after the
`prep' table has been executed, and right before a glyph's bytecode
was run it got reloaded. However, as Greg Hitchcock has told us in
private communication, reference points get reset to zero in the MS
rasterizer and we follow in due course. While reasonable, this is
undocumented behaviour.
Most notably, this fixes the rendering of Arial's `x' glyph in
subpixel hinting mode.
2013-02-05 Werner Lemberg <wl@gnu.org>
[truetype] A better fix for Savannah bug #38211.
* src/truetype/ttinterp.c (Ins_IP): Implement identical behaviour to
MS rasterizer if rp1 == rp2 (confirmed by Greg Hitchcock).
2013-02-01 Alexei Podtelezhnikov <apodtele@gmail.com>
[pcf] Streamline parsing of PCF encoding table.
* src/pcf/pcfread.c (pcf_get_encodings): Use simpler double for-loop.
Reallocate array instead of using temporary storage.
2013-02-01 Werner Lemberg <wl@gnu.org>
Fix Savannah bug #38227.
* builds/unix/freetype-config.in: Set LC_ALL.
2013-02-01 Werner Lemberg <wl@gnu.org>
Fix Savannah bug #38221.
This complements commit 83c0ebab.
* src/base/ftcalc.c (FT_MulDiv_No_Round): Don't enclose with
`TT_USE_BYTECODE_INTERPRETER'.
2013-02-01 Werner Lemberg <wl@gnu.org>
[truetype] Fix Savannah bug #38211.
* src/truetype/ttinterp.c (Ins_IP): Make FreeType behave identical
to other interpreters if rp1 == rp2 (which is invalid).
2013-01-28 Alexei Podtelezhnikov <apodtele@gmail.com>
[base] Small optimization of BBox calculation.
* src/base/ftbbox.c (BBox_Cubic_Check): Use FT_MSB function in
scaling algorithm.
2013-01-26 Infinality <infinality@infinality.net>
[truetype] Minor formatting fix.
* src/truetype/ttinterp.c: Updated.
(DO_RS): Fix indentation.
2013-01-26 Infinality <infinality@infinality.net>
[truetype] Fix rasterizer_version logic in sph.
* src/truetype/ttsubpix.c: Updated.
(ALWAYS_SKIP_DELTAP_Rules): Remove rule for Trebuchet MS.
(sph_set_tweaks): Fix `rasterizer_version' logic.
2013-01-26 Infinality <infinality@infinality.net>
[truetype] Align more to ClearType whitepaper for sph.
* include/freetype/internal/tttypes.h (TT_FaceRec): Add flags
for detected opcode patterns and compatibility mode.
* src/truetype/ttgload.c (tt_loader_init): Complete conditional.
* src/truetype/ttinterp.c: Updated.
Remove SPH_DEBUG and replace with FT_TRACE7.
(DO_RS): More conditions.
(Ins_FDEF): Add more opcode detection patterns.
More specific conditions when flagging an fdef.
Make compatibility mode only turn on when delta fdefs are found.
(Ins_CALL, Ins_LOOPCALL): Set flags for currently executed fdef.
(Ins_SHPIX): Remove logic to handle ttfautohinted fonts.
Simplify conditionals where possible.
Use `&' instead of `%' operator for dumb compilers.
(Ins_MIAP): Adjust twilight zone conditional.
Ensure `ignore_x_mode' is on when testing sph conditionals.
(Ins_MIRP): Ensure `ignore_x_mode' is on when testing sph
conditionals.
Do cvt cutin always when `ignore_x_mode' is active.
Remove test for ttfautohinted fonts.
(Ins_DELTAP): Ensure `ignore_x_mode' is on when testing sph
conditionals.
Do cvt cutin always when `ignore_x_mode' is active.
Remove test for ttfautohinted fonts.
Use `&' instead of `%' operator for dumb compilers.
(Ins_GETINFO): Remove SPH_DEBUG and replace with FT_TRACE7.
* src/truetype/ttinterp.h: Updated.
(TT_ExecContextRec): Remove compatibility_mode variable.
Add variable to indicate when executing in special fdefs for sph.
* src/truetype/ttobjs.h: Updated.
(TT_DefRecord): Add flags to identify special fdefs for sph.
(TT_SizeRec): Remove unnecessary ttfautohinted variable.
* src/truetype/ttsubpix.c: Updated.
(COMPATIBILITY_MODE_Rules): Remove all. Auto-detected now.
(PIXEL_HINTING_Rules): Remove all. Unnecessary after fixes.
(SKIP_NONPIXEL_Y_MOVES_Rules): Remove Ubuntu.
(SKIP_NONPIXEL_Y_MOVES_Rules_Exceptions): Add Arial Bold `N'.
(SKIP_OFFPIXEL_Y_MOVES_Rules): Remove all. Happens automatically
now.
(ROUND_NONPIXEL_Y_MOVES_Rules): Remove Ubuntu.
(ROUND_NONPIXEL_Y_MOVES_Rules_Exceptions): Remove all.
(NORMAL_ROUND_Rules): Remove Verdana.
(NO_DELTAP_AFTER_IUP_Rules): Remove all.
(sph_set_tweaks): Performance fix. Don't run prep always.
Adjust conditional for sph_compatibility_mode.
* src/truetype/ttsubpix.h: Add new fdef flags for sph.
2013-01-23 Alexei Podtelezhnikov <apodtele@gmail.com>
[base] Fix broken emboldening at small sizes.
* src/base/ftoutln.c (FT_Outline_EmboldenXY): Do not attempt to
normalize zero-length vectors.
2013-01-25 Werner Lemberg <wl@gnu.org>
Fix Savannah bug #38167.
This fixes commit 83c0ebab from 2012-06-27.
* src/truetype/ttinterp.h:
s/TT_CONFIG_OPTION_BYTECODE_INTERPRETER/TT_USE_BYTECODE_INTERPRETER/.
2013-01-25 Xi Wang <xi.wang@gmail.com>
[sfnt] Fix broken pointer overflow checks.
Many compilers such as gcc and clang optimize away pointer overflow
checks `p + n < p', because pointer overflow is undefined behavior.
Use a safe form `n > p_limit - p' instead.
Also avoid possible integer overflow issues, for example, using
`num_glyphs > ( p_limit - p ) / 2' rather than `num_glyphs * 2'
given a large `num_glyphs'.
* src/sfnt/ttsbit0.c (tt_sbit_decoder_load_image): Implement it.
2013-01-25 Werner Lemberg <wl@gnu.org>
[base] Fix `make multi'.
* src/base/ftoutln.c, src/base/fttrigon.c: Include
FT_INTERNAL_CALC_H.
2013-01-25 David 'Digit' Turner <digit@google.com>
[truetype] Fix C++ compilation.
* src/truetype/ttsubpix.h: Updated.
(SPH_X_SCALING_RULES_SIZE): Moved and renamed to...
* src/truetype/ttsubpix.c (X_SCALING_RULES_SIZE): This.
(sph_X_SCALING_Rules): Removed.
(scale_test_tweak): Make function static.
(sph_test_tweak_x_scaling): New function.
* src/truetype/ttgload.c (TT_Process_Simple_Glyph): Updated.
2013-01-23 Werner Lemberg <wl@gnu.org>
[base] Make `FT_Hypot' really internal.
* include/freetype/fttrigon.h (FT_Hypot): Move to...
* include/freetype/internal/ftcalc.h: This file.
* src/base/fttrigon.c (FT_Hypot): Move to...
* src/base/ftcalc.c: This file.
Include FT_TRIGONOMETRY_H.
* src/truetype/ttgload.c: Don't include FT_TRIGONOMETRY_H.
2013-01-23 Werner Lemberg <wl@gnu.org>
[truetype] Revert change from 2013-01-22.
FreeType's `height' value is the baseline-to-baseline distance...
* src/truetype/ttobjs.c (tt_size_reset): Undo.
2013-01-23 Alexei Podtelezhnikov <apodtele@gmail.com>
[base, truetype] New internal `FT_Hypot' function.
* include/freetype/fttrigon.h (FT_Hypot): Declare it.
* src/base/fttrigon.c (FT_Hypot): Define it.
* src/truetype/ttgload.c (TT_Process_Composite_Component): Use it
instead of explicit expressions.
* src/truetype/ttinterp.c (Current_Ratio, Normalize): Use it instead
of TT_VecLen.
(TT_VecLen): Removed.
2013-01-23 Alexei Podtelezhnikov <apodtele@gmail.com>
[base] Fix integer overflow.
* src/base/ftoutln.c (FT_Outline_EmboldenXY): Normalize incoming and
outgoing vectors and use fixed point arithmetic.
2013-01-23 Alexei Podtelezhnikov <apodtele@gmail.com>
[base] Fix integer overflow.
* src/base/ftoutln.c (FT_Outline_Get_Orientation): Scale the
coordinates down to avoid overflow.
2013-01-23 Alexei Podtelezhnikov <apodtele@gmail.com>
[base] Split out MSB function.
* src/base/fttrigon.c (ft_trig_prenorm): Borrow from here.
* include/freetype/internal/ftcalc.h (FT_MSB): Declare here.
* src/base/ftcalc.c (FT_MSB): Define here.
2013-01-22 Werner Lemberg <wl@gnu.org>
[truetype] Fix font height.
* src/truetype/ttobjs.c (tt_size_reset): The Windows rendering
engine uses rounded values of the ascender and descender to compute
the TrueType font height.
2013-01-16 Behdad Esfahbod <behdad@behdad.org>
[sfnt] Fix optimized sbit loader.
It was not taking bit_depth into consideration when blitting!
* src/sfnt/ttsbit0.c (tt_sbit_decoder_load_byte_aligned,
* tt_sbit_decoder_load_bit_aligned): Handle bit
depth.
2013-01-16 David 'Digit' Turner <digit@google.com>
[truetype] Improve subpixel code.
This patches fixes many issues with the ttsubpix implementation.
1. Data tables are defined, instead of declared, in the header, and
thus copied into each source file that includes it.
2. These tables were defined as global, mutable, visible variables,
and thus costing private RAM to every process that loads the
library (> 50 KB / process, this is huge!).
Additionally, this also made the library export the symbols
completely needlessly.
3. Missing `sph_' and `SPH_' prefixes to some of the definitions.
Note that this doesn't try to fix the incredibly inefficient storage
format for the data tables used by the code. This one will require
another pass in the future.
* src/truetype/ttinterp.h (MAX_NAME_SIZE, MAX_CLASS_MEMBERS):
Renamed to...
(SPH_MAX_NAME_SIZE, SPH_MAX_CLASS_MEMBERS): This.
Update all users.
(SPH_TweakRule, SPH_ScaleRule): Decorate with `const' where
appropriate.
(Font_Class): Rename to...
(SPH_Font_Class): This. Decorate with `const' where appropriate.
* src/truetype/ttsubpix.h (scale_test_tweak, sph_test_tweak):
Decorate arguments with `const' where appropriate.
Move font tweaking tables to...
* src/truetype/ttsubpix.c: This file and decorate them with `static'
and `const' where appropriate.
(X_SCALING_Rules, X_SCALING_RULES_SIZE): Renamed to...
(sph_X_SCALING_Rules, SPH_X_SCALING_RULES_SIZE): This.
Update all users.
2013-01-12 Alexei Podtelezhnikov <apodtele@gmail.com>
[truetype] Improve accuracy of normalization of short vectors.
Unit vector components are stored as 2.14 fixed-point numbers. In
order to calculate all 14 bits accurately, a short vector to be
normalized has to be upscaled to at least 14 bits before its length
is calculated. This has been safe since accurate CORDIC algorithms
were adopted.
* src/truetype/ttinterp.c (Normalize): Scale short vectors by 0x4000.
2013-01-12 Alexei Podtelezhnikov <apodtele@gmail.com>
[truetype] Kill very old vector normalization hacks.
Back in the days, vector length calculations were not very accurate
and the vector normalization function, Normalize, had to meticulously
correct the errors for long vectors [commit b7ef2b096867]. It was no
longer necessary after accurate CORDIC algorithms were adopted, but
the code remained. It is time to kill it.
* src/truetype/ttinterp.c (Normalize): Remove error compensation.
(TT_VecLen): Remove any mention of old less accurate implementation.
2013-01-11 Werner Lemberg <wl@gnu.org>
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.
2013-01-10 Alexei Podtelezhnikov <apodtele@gmail.com>
[base] Update the overflow protection bit.
The recent optimizations of CORDIC iterations drastically reduce the
expansion factor. Vector components with MSB of 29 are now safe
from overflow.
* src/base/fttrigon.c (FT_TRIG_SAFE_MSB): New macro.
(ft_trig_prenorm): Use it and remove dead code.
2013-01-09 Alexei Podtelezhnikov <apodtele@gmail.com>
[base, pshinter] Use FT_ABS, FT_MIN, and FT_MAX for readability.
* src/base/ftbbox.c: Updated.
* src/base/ftobjs.c: Updated.
* src/base/fttrigon.c: Updated.
* src/pshinter/pshalgo.c: Updated.
* src/pshinter/pshrec.c: Updated.
2013-01-08 Alexei Podtelezhnikov <apodtele@gmail.com>
[base] Clean up trigonometric core.
* src/base/fttrigon.c: Document the algorithm in a large comment.
(FT_TRIG_COSCALE): Remove macro.
(FT_Tan: Use `FT_TRIG_SCALE' instead.
(FT_Cos, FT_Vector_Unit): Ditto and round the return values.
2013-01-02 Alexei Podtelezhnikov <apodtele@gmail.com>
[base] Use rounding in CORDIC iterations.
* src/base/fttrigon.c (ft_trig_pseudo_rotate,
ft_trig_pseudo_polarize): Improve accuracy by rounding.
2013-01-02 Alexei Podtelezhnikov <apodtele@gmail.com>
[base] Reduce trigonometric algorithms.
After we get within 45 degrees by means of true 90-degree rotations,
we can remove initial 45-degree CORDIC iteration and start from
atan(1/2) pseudorotation, reducing expansion factor thereby.
* src/base/fttrigon.c (FT_TRIG_SCALE, FT_TRIG_COSCALE): Update macros.
(ft_trig_pseudo_rotate, ft_trig_pseudo_polarize): Update.
* src/tools/cordic.py: Bring up to date with trigonometric core.
* docs/CHANGES: Old typo.
2013-01-02 Alexei Podtelezhnikov <apodtele@gmail.com>
* src/pshinter/pshalgo.h: Remove unused code.
2012-12-27 Werner Lemberg <wl@gnu.org>
* src/truetype/ttgload.c (tt_loader_init): Add more tracing.
2012-12-23 Werner Lemberg <wl@gnu.org>
[type1] Fix handling of /FontBBox in MM fonts.
Problem reported by Del Merritt <del@alum.mit.edu>
If we have
/FontBBox { { 11 12 13 14 15 16 17 18 }
{ 21 22 23 24 25 26 27 28 }
{ 31 32 33 34 35 36 37 38 }
{ 41 42 43 44 45 46 47 48 } }
in the /Blend dictionary, then the first BBox is { 11 21 31 41 },
the second { 12 22 32 42 }, etc.
* include/freetype/internal/psaux.h (T1_FieldType): Add
`T1_FIELD_TYPE_MM_BBOX' (for temporary use).
* src/psaux/psobjs.c (ps_parser_load_field) <T1_FIELD_TYPE_MM_BBOX>:
Implement it.
2012-12-21 Alexei Podtelezhnikov <apodtele@gmail.com>
* src/tools/cordic.py: Bring up to date with trigonometric core.
2012-12-21 Werner Lemberg <wl@gnu.org>
Check parameters of `FT_Outline_New'.
Problem reported by Robin Watts <robin.watts@artifex.com>.
* src/base/ftoutln.c (FT_Outline_New_Internal): Ensure that
`numContours' and `numPoints' fit into FT_Outline's `n_points' and
`n_contours', respectively.
2012-12-20 Werner Lemberg <wl@gnu.org>
* Version 2.4.11 released.
==========================
Tag sources with `VER-2-4-11'.
* docs/CHANGES, docs/release: Updated.
* docs/VERSION.DLL: Update documentation and bump version number to
2.4.11.
* README, Jamfile (RefDoc),
builds/win32/vc2005/freetype.vcproj, builds/win32/vc2005/index.html,
builds/win32/vc2008/freetype.vcproj, builds/win32/vc2008/index.html,
builds/win32/vc2010/freetype.vcxproj, builds/win32/vc2010/index.html,
builds/win32/visualc/freetype.dsp,
builds/win32/visualc/freetype.vcproj,
builds/win32/visualc/index.html, builds/win32/visualce/freetype.dsp,
builds/win32/visualce/freetype.vcproj,
builds/win32/visualce/index.html,
builds/wince/vc2005-ce/freetype.vcproj,
builds/wince/vc2005-ce/index.html,
builds/wince/vc2008-ce/freetype.vcproj,
builds/wince/vc2008-ce/index.html: s/2.4.10/2.4.11/, s/2410/2411/.
* include/freetype/freetype.h (FREETYPE_PATCH): Set to 11.
* builds/unix/configure.raw (version_info): Set to 16:0:10.
* builds/toplevel.mk (dist): Don't include `.mailmap'.
2012-12-20 Alexei Podtelezhnikov <apodtele@gmail.com>
[base] Improve trigonometric core.
FreeType used to rely on a 24-step iteration CORDIC algorithm to
calculate trigonometric functions and rotate vectors. It turns out
that once the vector is in the right half-plane, the initial rotation
by 63 degrees is not necessary. The algorithm is perfectly capable
to converge to any angle starting from the second 45 degree rotation.
This patch removes the first rotation and makes it a 23-step CORDIC
algorithm.
* src/base/fttrigon.c (FT_TRIG_SCALE, FT_TRIG_COSCALE): Update macro
values.
(ft_trig_pseudo_rotate, ft_trig_pseudo_polarize): Remove initial
rotation.
2012-12-19 Werner Lemberg <wl@gnu.org>
* src/base/ftobjs.c (ft_property_do): Fix compiler warning.
2012-12-19 Alexei Podtelezhnikov <apodtele@gmail.com>
* src/base/ftrfork.c (FT_Raccess_Guess): Switch to FT_Int counters.
2012-12-19 Alexei Podtelezhnikov <apodtele@gmail.com>
[base] Clean up trigonometric core.
* src/base/fttrigon.c (ft_trig_pseudo_polarize): Align algorithm
with `ft_trig_pseudo_rotate'.
2012-12-18 Infinality <infinality@infinality.net>
[truetype] Minor performance enhancement.
* src/truetype/ttgload.c: (TT_Process_Simple_Glyph): Use FT_MulFix
instead of FT_MulDiv.
2012-12-17 Infinality <infinality@infinality.net>
[truetype] Remove unused code and variables.
* src/truetype/ttinterp.c: Updated.
(Ins_FDEF): Remove opcode patterns that are not being used.
2012-12-16 Werner Lemberg <wl@gnu.org>
Various compiler warning fixes.