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Diffstat (limited to 'freetype/ChangeLog')
| -rw-r--r-- | freetype/ChangeLog | 1512 |
1 files changed, 1507 insertions, 5 deletions
diff --git a/freetype/ChangeLog b/freetype/ChangeLog index b5c7d13aa..5cda57a46 100644 --- a/freetype/ChangeLog +++ b/freetype/ChangeLog @@ -1,3 +1,1505 @@ +2013-06-19 Werner Lemberg <wl@gnu.org> + + * 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 Werner Lemberg <wl@gnu.org> + + * builds/unix/install.mk (install): Don't create `cache' directory. + + Found by Peter Breitenlohner <peb@mppmu.mpg.de>. + +2013-06-19 Werner Lemberg <wl@gnu.org> + + * Version 2.5.0 released. + ========================= + + + Tag sources with `VER-2-5-0'. + + * docs/VERSION.DLL: Update documentation and bump version number to + 2.5.0. + + * 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/2.4.12/2.5.0/, s/2412/250/. + + * include/freetype/freetype.h (FREETYPE_MINOR): Set to 5. + (FREETYPE_PATCH): Set to 0. + + * builds/unix/configure.raw (version_info): Set to 16:2:10. + + * src/base/ftobjs.c (FT_Open_Face): Pacify compiler. + * src/truetype/ttinterp.c (Ins_MSIRP, Ins_MIRP): Ditto. + +2013-06-18 Werner Lemberg <wl@gnu.org> + + Fix Savannah bug #39269. + + * src/base/ftgloadr.c (FT_GlyphLoader_CheckPoints): Free memory in + case of reacollocation failures. + +2013-06-18 Andrew Church <achurch+savannah@achurch.org> + + Fix Savannah bug #39266. + + If memory allocations fail at certain points while opening a font, + FreeType can either crash due to a NULL dereference or leak memory. + + * include/freetype/internal/ftobjs.c (FT_Face_InternalRec, + FT_LibraryRec): Make `refcount' a signed integer. If, for example, + FT_Open_Face() fails in a memory allocation before the face's + reference count is set to 1, a subsequent `FT_Done_Library' call + would otherwise loop over `FT_Done_Face' 2^32 times before freeing + the face. + + * src/base/ftobjs.c (open_face): Initialize `stream' and friends + earlier. + (FT_Open_Face) <Fail>: Behave correctly if `node' is NULL. + (FT_Destroy_Module) <Fail>: Check that `renderer_clazz' is valid. + +2013-06-14 Werner Lemberg <wl@gnu.org> + + * src/smooth/ftgrays.c One final pragma to silence 64-bit MSVC. + +2013-06-06 Dave Arnold <darnold@adobe.com> + Werner Lemberg <wl@gnu.org> + + [cff] Add code to Adobe's engine to handle ppem > 2000. + + * src/cff/cffgload.c (cff_slot_load): If we get + FT_Err_Glyph_Too_Big, retry unhinted and scale up later on. + +2013-06-12 Werner Lemberg <wl@gnu.org> + + Another try on pragmas. + + * include/freetype/internal/ftdebug.h: Move pragmas to... + * include/freetype/internal/internal.h: ... this file since it gets + included by all source files. + * include/freetype/internal/ftserv.h: Remove pragma which has no + effect. + +2013-06-12 Werner Lemberg <wl@gnu.org> + + * include/freetype/internal/ftdebug.h: Disable MSVC warning C4127. + + This partially undoes commit 3f6e0e0c. + +2013-06-12 Werner Lemberg <wl@gnu.org> + + More compiler warning fixes. + + */*: Use cast to `FT_Bool' (or `Bool') where appropriate. + +2013-06-10 Werner Lemberg <wl@gnu.org> + + [truetype] Improve handling of broken sbit advance widths. + + * src/truetype/ttgload.c (TT_Load_Glyph): Use the glyph's (scaled) + `linearHoriAdvance' if the sbit's `horiAdvance' value is zero. + + Cf. font `Fixedsys Excelsior' v3.01 (FSEX300.ttf), glyph A, 16ppem. + +2013-06-10 Werner Lemberg <wl@gnu.org> + + [sfnt] Improve embedded bitmap tracing. + + * src/base/ftobjs.c (FT_Request_Size): Move trace message regarding + bitmap strike match to... + (FT_Match_Size): This function. + + * src/sfnt/ttsbit.c (tt_sbit_decoder_load_metrics, + tt_sbit_decoder_load_byte_aligned, tt_sbit_decoder_load_bit_aligned, + tt_sbit_decoder_load_compound, tt_sbit_decoder_load_png, + tt_sbit_decoder_load_image): Decorate with tracing messages. + +2013-06-10 Werner Lemberg <wl@gnu.org> + + Fix Savannah bug #39160. + + * src/truetype/ttinterp.c (Ins_SDPVTL): Set projection vector too + for the degenerate case. + +2013-06-09 David Turner <digit@google.com> + + * src/cache/ftcmanag.c (FTC_Manager_Reset): Add missing cache flush. + + This code, present since eight(!) years in the unused `CACHE' + branch, has been forgotten to apply to the master branch. It's + really amazing that noone has ever complained since + `FTC_Manager_Reset' is pretty useless without flushing the cache. + +2013-06-07 Werner Lemberg <wl@gnu.org> + + Add and improve pragmas for MSVC compiler. + + * include/freetype/internal/ftdebug.h: Remove pragmas. + * include/freetype/internal/ftserv.h: Use push and pop for pragmas. + * include/freetype/internal/ftvalid.h: Handle warning C4324. + * src/base/ftobjs.c: Use push and pop for pragmas. + * src/gzip/ftgzip.c: Handle warning C4244. + +2013-06-07 Werner Lemberg <wl@gnu.org> + + [cff] s/cf2_getGlyphWidth/cf2_getGlyphOutline/. + + * src/cff/cf2font.c, src/cff/cf2font.h, src/cff/cf2ft.c: Do it. + +2013-06-06 Dave Arnold <darnold@adobe.com> + + [cff] Add early exit feature for width-only calls. + + This is for `FT_Get_Advance'. + + There are 7 places where the spec says the width can be defined: + + hstem/hstemhm + vstem/vstemhm + cntrmask/hintmask + hmoveto + vmoveto + rmoveto + endchar + + * src/cff/cf2intrp.c (cf2_doStems): Exit early for width-only calls, + if possible. + + (cf2_interpT2CharString) <cf2_cmdHSTEM>, <cf2_cmdVSTEM>, + <cf2_cmdVMOVETO>, <cf2_cmdENDCHAR>, <cf2_cmdHINTMASK>, + <cf2_cmdRMOVETO>, <cf2_cmdHMOVETO>: Exit early for width-only calls. + +2013-06-06 Werner Lemberg <wl@gnu.org> + + Next round of compiler fixes. + + * builds/win32/ftdebug.c, builds/wince/ftdebug.c (ft_debug_init): + Add proper cast. + + * include/freetype/internal/ftserv.h (FT_SERVICE_UNAVAILABLE): Fix + cast. + * include/freetype/internal/ftstream.h: Decorate stream and frame + macros with `FT_Long' and `FT_ULong' as appropriate. + + * src/base/ftrfork.c (raccess_guess_darwin_hfsplus, + raccess_guess_darwin_newvfs): Use cast. + + * src/bdf/bdflib.c (_bdf_set_default_spacing): Use cast. + + * src/cache/ftcmanag.c (FTC_Manager_Check): Fix cast. + * src/cache/ftcmanag.h (FTC_ManagerRec): Ditto. + + * src/cff/cf2arrst.c (cf2_arrstack_setNum_Elements): Use cast. + * src/cff/cf2ft.c (cf2_freeSeacComponent): Ditto. + * src/cff/cffobjs.c (remove_subset_prefix, remove_style): Ditto. + + * src/cid/cidparse.c (cid_parser_new): Use cast. + + * src/pcf/pcfdrivr.c (PCF_Glyph_Load): Use cast. + + * src/psaux/psobjs.c (reallocate_t1_table): Fix argument type. + + * src/raster/ftraster.c (ft_black_reset): Use cast. + + * src/truetype/ttgxvar.c (FT_Stream_FTell): Use cast. + (ALL_POINTS): Fix cast. + + * src/type1/t1driver.c (t1_ps_get_font_value): Add casts. + * src/type1/t1parse.c (T1_Get_Private_Dict): Add cast. + +2013-06-05 Dave Arnold <darnold@adobe.com> + + Fix more MSVC Win32 compiler warnings. + + * src/base/ftobjs.c: Fix typo in MS pragma. + + * src/base/bdflib.c (_bdf_set_default_spacing, _bdf_add_property): + `lineno' is only used in debug mode. + + * src/cff/cf2ft.c (cf2_builder_moveTo): `params' is only used in + debug mode. + +2013-06-05 Werner Lemberg <wl@gnu.org> + + Fix compiler warnings. + + * include/freetype/internal/ftmemory.h: Decorate memory allocation + macros with `FT_Long' where appropriate. + Remove duplicate of FT_MEM_QRENEW_ARRAY definition. + + * src/base/ftbitmap.c (ft_gray_for_premultiplied_srgb_bgra): Use + cast. + + * src/base/ftobjs.c: Add warning disabling pragma for MSVC while + including `md5.c'. + + * src/cff/cf2intrp.c (cf2_interpT2CharString) <cf2_cmdESC>: Add + cast. + + * src/sfnt/ttsbit.c (tt_sbit_decoder_load_compound): Fix casts. + (tt_sbit_decoder_load_bitmap): Beautification. + + * src/smooth/ftsmooth.c (ft_smooth_render_generic): Initialize + variables (earlier). + + * src/truetype/ttgload.c (TT_Process_Simple_Glyph): Pacify compiler. + + * src/truetype/ttgxvar.c (TT_Get_MM_Var): Use unsigned constants + where appropriate. + + * src/type1/t1load.c (T1_Get_MM_Var): Ditto. + +2013-06-04 Werner Lemberg <wl@gnu.org> + + * src/cff/cf2font.c (cf2_getGlyphWidth): Initialize `advWidth'. + + Problem reported by Ingmar Sittl <ingmar.sittl@elektrobit.com>. + +2013-06-04 Werner Lemberg <wl@gnu.org> + + Apply fixes for cppcheck nitpicks. + + http://cppcheck.sourceforge.net/ + + The call was (from the top-level of the FreeType tree): + + cppcheck --force \ + --enable=all \ + -I include \ + -I include/freetype/ \ + -I include/freetype/config/ \ + -I include/freetype/internal/ \ + . &> cppcheck.log + + Note that the current version heavily chokes on FreeType, delivering + many wrong results. I will report those issues to the cppcheck team + so that a newer version gives improved results hopefully. + + */* Improve variable scopes. + */* Remove redundant initializations which get overwritten. + + * src/base/ftmac.c ,builds/mac/ftmac.c (count_faces_scalable): + Remove unused variable. + + * src/base/ftdbgmem.c (ft_mem_table_destroy): `table' can't be zero. + + * src/gxvalid/gxvkern.c (gxv_kern_subtable_fmt1_entry_validate): + Remove functionless code. + + * src/tools/ftrandom.c (main): Fix memory leak. + +2013-06-03 Werner Lemberg <wl@gnu.org> + + 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. + +2013-06-02 Werner Lemberg <wl@gnu.org> + + Fix PNG library handling. + + * builds/unix/configure.raw: Don't use LIBPNG_LIBS but + LIBPNG_LDFLAGS. + +2013-05-23 Behdad Esfahbod <behdad@google.com> + + 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. + +2013-05-24 Guenter <info@gknw.net> + + Apply Savannah patch #8055. + + Make `apinames' create an import file for NetWare. + + * src/tools/apinames.c (PROGRAM_VERSION): Set to 0.2. + (OutputFormat): Add `OUTPUT_NETWARE_IMP'. + (names_dump): Handle it. + (usage): Updated. + (main): Handle new command line flag `-wN'. + +2013-05-23 Behdad Esfahbod <behdad@behdad.org> + + Compilation fix. + + * src/truetype/ttinterp.c (TT_RunIns) + [!TT_CONFIG_OPTION_SUBPIXEL_HINTING]: Make it work. + +2013-05-22 Infinality <infinality@infinality.net> + + [truetype] Formatting and an additional subpixel tweak. + + * src/truetype/ttinterp.c (Ins_SHPIX): Formatting fix. + * src/truetype/ttsubpix.c (SKIP_NONPIXEL_Y_MOVES_Rules): + Revert previous modification for Verdana clones. + +2013-05-22 Infinality <infinality@infinality.net> + + [truetype] Adjust subpixel zp2 moves and tweak rules. + + These modifications fix thin diagonal stems in some legacy fonts. + + * src/truetype/ttinterp.c (Direct_Move_X): Remove unused macro. + (Move_Zp2_Point): Don't always disable x moves for subpixel rendering. + (Ins_SHP): Disable x moves here for subpixel rendering. + (Ins_SHPIX): Only disable x moves in compatibility mode. + Split out zp2 move reversals and reorder conditional respectively. + + * src/truetype/ttsubpix.c (SKIP_NONPIXEL_Y_MOVES_Rules): Fix oversight. + Only adjust Verdana clones for 17 ppem. + (SKIP_NONPIXEL_Y_MOVES_Rules_Exceptions): Add Courier New. + (ALWAYS_SKIP_DELTAP_Rules): Found additional cases for Arial `s'. + +2013-05-20 Infinality <infinality@infinality.net> + + [truetype] Simplify and improve subpixel function detection. + + Some small enhancements have allowed the removal of many macros and + the simplification of existing rules in `ttsubpix.c'. + + * src/truetype/ttsubpix.h (SPH_TWEAK_ALLOW_X_DMOVEX, + SPH_TWEAK_ALLOW_X_MOVE_ZP2, + SPH_TWEAK_DELTAP_SKIP_EXAGGERATED_VALUES, + SPH_TWEAK_SKIP_INLINE_DELTAS, SPH_TWEAK_MIRP_CVT_ZERO): Removed. + (SPH_TWEAK_SKIP_NONPIXEL_Y_MOVES_DELTAP): New rule macro. + + * src/truetype/ttsubpix.c: Updated affected rules. + + * src/truetype/ttinterp.c (Direct_Move_X): Updated. + (INS_FDEF): Add additional function detection. + (INS_ENDF): Set runtime flag. + (Ins_CALL): Skip the call under certain conditions. + Remove bad code. + (Ins_LOOPCALL): Skip the call under certain conditions. + Remove bad code. + (Move_Zp2_Point): Updated. + (Ins_SHPIX): Updated. + Skip the move under some situations. + (Ins_MIAP): Improve conditions. + (Ins_MIRP): Updated. + (Ins_DELTAP): Skip move under certain conditions. + Simplify conditions. + (TT_RunIns): Updated. + Add code to handle new function detection. + Trace messages. + +2013-05-17 Werner Lemberg <wl@gnu.org> + + Update more FT_Err_XXX macros using FT_ERR and FT_THROW; + + * builds/amiga/src/base/ftsystem.c, builds/mac/ftmac.c, + builds/unix/ftsystem.c, builds/vms/ftsystem.c: Do it. + +2013-05-15 Werner Lemberg <wl@gnu.org> + + [truetype] Add `interpreter-version' property. + + This makes the option TT_CONFIG_OPTION_SUBPIXEL_HINTING controllable + at runtime. + + * include/freetype/ftttdrv.h: New file. + + * include/freetype/config/ftheader.h (FT_TRUETYPE_DRIVER_H): New + macro. + + * src/truetype/ttdriver.c: Include FT_TRUETYPE_DRIVER_H. + (tt_property_set, tt_property_get): Fill templates. + + * src/truetype/ttobjs.h (TT_DriverRec): Add `interpreter_version' + member. + Remove unused `extension_component' member. + + * src/truetype/ttgload.c: Include FT_TRUETYPE_DRIVER_H. + (tt_get_metrics, TT_Hint_Glyph, TT_Process_Simple_Glyph, + compute_glyph_metrics, tt_loader_init): Use `interpreter_version'. + + * src/truetype/ttinterp.c: Include FT_TRUETYPE_DRIVER_H. + (SUBPIXEL_HINTING): New macro to check `interpreter_version' flag. + Update all affected functions to use it. + Use TT_INTERPRETER_VERSION_XXX where appropriate. + + * src/truetype/ttobjs.c: Include FT_TRUETYPE_DRIVER_H. + (tt_driver_init): Initialize `interpreter_version'. + + * src/truetype/ttsubpix.c: Include FT_TRUETYPE_DRIVER_H. + Use TT_INTERPRETER_VERSION_XXX where appropriate. + +2013-05-13 Werner Lemberg <wl@gnu.org> + + [truetype] Avoid empty source file. + + * src/truetype/ttsubpix.c [!TT_CONFIG_OPTION_SUBPIXEL_HINTING]: + Provide dummy typedef. + +2013-05-13 Werner Lemberg <wl@gnu.org> + + * src/cff/cf2font.c (cf2_getGlyphWidth): Fix uninitialized variable. + + Fix suggested by Vaibhav Nagarnaik <vnagarnaik@gmail.com>. + +2013-05-13 Brian Nixon <bnixon@yahoo.com> + + Fix Savannah bug #38970. + + * src/base/ftdebug.c, builds/win32/ftdebug.c, + builds/wince/ftdebug.c, builds/amiga/src/base/ftdebug.c + (ft_debug_init): Don't read past the environment variable FT2_DEBUG. + +2013-05-12 Werner Lemberg <wl@gnu.org> + + [truetype] Add framework for TrueType properties. + + * src/truetype/ttdrivr.c: Include FT_SERVICE_PROPERTIES_H. + (tt_property_set, tt_property_get): New functions, still empty. + Define `tt_service_properties' service. + Update `tt_services'. + + * src/truetype/ttpic.h: Include FT_SERVICE_PROPERTIES_H. + (TT_SERVICE_PROPERTIES_GET): New macro. + (TTModulePIC): Add `tt_service_properties'. + +2013-05-12 Werner Lemberg <wl@gnu.org> + + Fix Savannah bug #38967. + + * src/base/ftcalc.c (FT_DivFix) [FT_LONG64]: Fix cast. + +2013-05-12 Werner Lemberg <wl@gnu.org> + + Introduce unsigned 64bit type (if available). + + * include/freetype/config/ftconfig.h: Define FT_UINT64 if available. + [FT_LONG64]: Provide FT_UInt64. + + * builds/unix/ftconfig.in: Synchronized. + +2013-05-12 Werner Lemberg <wl@gnu.org> + + Fix Savannah bug #38968. + + * include/freetype/ftmodapi.h: Add `FT_EXPORT' to + FT_Property_{Set,Get}. + * src/base/ftobjs.c: Add `FT_EXPORT_DEF' to + FT_Property_{Set,Get}. + +2013-05-10 Werner Lemberg <wl@gnu.org> + + [sfnt] Clean up bitmap code. + + * src/sfnt/ttsbit.c: Deleted. + * src/sfnt/ttsbit0.c: Renamed to `ttsbit.c'. + * rules.mk (SFNT_DRV_H): Updated. + +2013-05-10 Werner Lemberg <wl@gnu.org> + + */* [FT_CONFIG_OPTION_OLD_INTERNALS]: Remove macro and guarded code. + +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 + + http://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 backwards 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 sub-pixel code. + + This patches fixes many issues with the ttsubpix implementation. + + 1. Data tables are defined, instead of declared, in the header, and + thus copied into each source file that includes it. + + 2. These tables were defined as global, mutable, visible variables, + and thus costing private RAM to every process that loads the + library (> 50 KB / process, this is huge!). + + Additionally, this also made the library export the symbols + completely needlessly. + + 3. Missing `sph_' and `SPH_' prefixes to some of the definitions. + + Note that this doesn't try to fix the incredibly inefficient storage + format for the data tables used by the code. This one will require + another pass in the future. + + * src/truetype/ttinterp.h (MAX_NAME_SIZE, MAX_CLASS_MEMBERS): + Renamed to... + (SPH_MAX_NAME_SIZE, SPH_MAX_CLASS_MEMBERS): This. + Update all users. + + (SPH_TweakRule, SPH_ScaleRule): Decorate with `const' where + appropriate. + + (Font_Class): Rename to... + (SPH_Font_Class): This. Decorate with `const' where appropriate. + + * src/truetype/ttsubpix.h (scale_test_tweak, sph_test_tweak): + Decorate arguments with `const' where appropriate. + + Move font tweaking tables to... + + * src/truetype/ttsubpic.c: This file and decorate them with `static' + and `const' where appropriate. + + (X_SCALING_Rules, X_SCALING_RULES_SIZE): Renamed to... + (spu_X_SCALING_Rules, SPH_X_SCALING_RULES_SIZE): This. + Update all users. + +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. @@ -25,7 +1527,7 @@ builds/wince/vc2008-ce/freetype.vcproj, builds/wince/vc2008-ce/index.html: s/2.4.10/2.4.11/, s/2410/2411/. - * include/freetype/freetype.h (FREETYPE_PATCH): Set to 10. + * include/freetype/freetype.h (FREETYPE_PATCH): Set to 11. * builds/unix/configure.raw (version_info): Set to 16:0:10. @@ -170,7 +1672,7 @@ The dot product between freeVector and projVector or cosine of the angle between these FT_F2Dot14 unit vectors used to be scaled up by 4 and routinely occupied 32 bits in an FT_Long field F_dot_P. - This patch scales the value down by 2^14 instead, which simplifies + This patch scales the value down by 2^14 instead, which simplifies its use throughout the bytecode interpreter. This does not lead to the loss of precision because the lower bits @@ -183,7 +1685,7 @@ Besides code simplification, this change can lead to better performance when FT_MulDiv with the scaled-down F_dot_P is less likely to use the costly 64-bit path. We are not changing the type - of F_dot_P to FT_F2Dot14 at this point. + of F_dot_P to FT_F2Dot14 at this point. * src/truetype/ttinterp.c (Compute_Funcs): Scale F_dot_P down by 14 bits and modify its use accordingly. @@ -389,7 +1891,7 @@ [truetype] Cheaper way to threshold angles between vectors. * src/truetype/ttinterp.c (Ins_ISECT): Thresholding tangent is a lot - cheaper than thresholding sine. + cheaper than thresholding sine. 2012-10-20 Werner Lemberg <wl@gnu.org> @@ -5426,7 +6928,7 @@ ---------------------------------------------------------------------------- -Copyright 2010-2012 by +Copyright 2010-2013 by David Turner, Robert Wilhelm, and Werner Lemberg. This file is part of the FreeType project, and may only be used, modified, |