summaryrefslogtreecommitdiffstats
path: root/src/3rdparty/freetype/src
diff options
context:
space:
mode:
authorKonstantin Ritt <ritt.ks@gmail.com>2015-03-19 17:34:42 +0400
committerKonstantin Ritt <ritt.ks@gmail.com>2015-03-20 13:42:29 +0000
commit2eaf0cf8fd6e7c290497fedb08134a89e7b49b1d (patch)
tree0a4f7bf528e87d0b0a71ce7fccf702b87f4cdec1 /src/3rdparty/freetype/src
parent77c518a50334d4dcf2476a4f39edc1e3990c7f0b (diff)
Update bundled FreeType to 2.5.5
Removed everything, imported with help of import_from_tarball.sh script, and then added a pre-generated builds/unix/ftconfig.h Task-number: QTBUG-44648 Change-Id: Iea948e41f7761f1580382b3763d04c7a61383382 Reviewed-by: Lars Knoll <lars.knoll@digia.com>
Diffstat (limited to 'src/3rdparty/freetype/src')
-rw-r--r--src/3rdparty/freetype/src/Jamfile4
-rw-r--r--src/3rdparty/freetype/src/autofit/afangles.c125
-rw-r--r--src/3rdparty/freetype/src/autofit/afblue.c177
-rw-r--r--src/3rdparty/freetype/src/autofit/afblue.cin39
-rw-r--r--src/3rdparty/freetype/src/autofit/afblue.dat337
-rw-r--r--src/3rdparty/freetype/src/autofit/afblue.h203
-rw-r--r--src/3rdparty/freetype/src/autofit/afblue.hin142
-rw-r--r--src/3rdparty/freetype/src/autofit/afcjk.c1071
-rw-r--r--src/3rdparty/freetype/src/autofit/afcjk.h113
-rw-r--r--src/3rdparty/freetype/src/autofit/afcover.h105
-rw-r--r--src/3rdparty/freetype/src/autofit/afdummy.c47
-rw-r--r--src/3rdparty/freetype/src/autofit/afdummy.h8
-rw-r--r--src/3rdparty/freetype/src/autofit/aferrors.h3
-rw-r--r--src/3rdparty/freetype/src/autofit/afglobal.c406
-rw-r--r--src/3rdparty/freetype/src/autofit/afglobal.h103
-rw-r--r--src/3rdparty/freetype/src/autofit/afhints.c791
-rw-r--r--src/3rdparty/freetype/src/autofit/afhints.h288
-rw-r--r--src/3rdparty/freetype/src/autofit/afindic.c98
-rw-r--r--src/3rdparty/freetype/src/autofit/afindic.h9
-rw-r--r--src/3rdparty/freetype/src/autofit/aflatin.c1455
-rw-r--r--src/3rdparty/freetype/src/autofit/aflatin.h92
-rw-r--r--src/3rdparty/freetype/src/autofit/aflatin2.c435
-rw-r--r--src/3rdparty/freetype/src/autofit/aflatin2.h10
-rw-r--r--src/3rdparty/freetype/src/autofit/afloader.c158
-rw-r--r--src/3rdparty/freetype/src/autofit/afloader.h42
-rw-r--r--src/3rdparty/freetype/src/autofit/afmodule.c271
-rw-r--r--src/3rdparty/freetype/src/autofit/afmodule.h24
-rw-r--r--src/3rdparty/freetype/src/autofit/afpic.c142
-rw-r--r--src/3rdparty/freetype/src/autofit/afpic.h77
-rw-r--r--src/3rdparty/freetype/src/autofit/afranges.c220
-rw-r--r--src/3rdparty/freetype/src/autofit/afranges.h41
-rw-r--r--src/3rdparty/freetype/src/autofit/afscript.h139
-rw-r--r--src/3rdparty/freetype/src/autofit/afstyles.h164
-rw-r--r--src/3rdparty/freetype/src/autofit/aftypes.h524
-rw-r--r--src/3rdparty/freetype/src/autofit/afwarp.c64
-rw-r--r--src/3rdparty/freetype/src/autofit/afwrtsys.h52
-rw-r--r--src/3rdparty/freetype/src/autofit/autofit.c9
-rw-r--r--src/3rdparty/freetype/src/autofit/hbshim.c545
-rw-r--r--src/3rdparty/freetype/src/autofit/hbshim.h56
-rw-r--r--src/3rdparty/freetype/src/autofit/rules.mk14
-rw-r--r--src/3rdparty/freetype/src/base/basepic.c73
-rw-r--r--src/3rdparty/freetype/src/base/basepic.h58
-rw-r--r--src/3rdparty/freetype/src/base/ftadvanc.c39
-rw-r--r--src/3rdparty/freetype/src/base/ftbase.c2
-rw-r--r--src/3rdparty/freetype/src/base/ftbase.h12
-rw-r--r--src/3rdparty/freetype/src/base/ftbbox.c512
-rw-r--r--src/3rdparty/freetype/src/base/ftbdf.c43
-rw-r--r--src/3rdparty/freetype/src/base/ftbitmap.c271
-rw-r--r--src/3rdparty/freetype/src/base/ftcalc.c540
-rw-r--r--src/3rdparty/freetype/src/base/ftcid.c8
-rw-r--r--src/3rdparty/freetype/src/base/ftdbgmem.c111
-rw-r--r--src/3rdparty/freetype/src/base/ftdebug.c30
-rw-r--r--src/3rdparty/freetype/src/base/ftfstype.c4
-rw-r--r--src/3rdparty/freetype/src/base/ftgloadr.c14
-rw-r--r--src/3rdparty/freetype/src/base/ftglyph.c124
-rw-r--r--src/3rdparty/freetype/src/base/ftgxval.c35
-rw-r--r--src/3rdparty/freetype/src/base/ftinit.c132
-rw-r--r--src/3rdparty/freetype/src/base/ftlcdfil.c85
-rw-r--r--src/3rdparty/freetype/src/base/ftmac.c104
-rw-r--r--src/3rdparty/freetype/src/base/ftmm.c50
-rw-r--r--src/3rdparty/freetype/src/base/ftobjs.c1105
-rw-r--r--src/3rdparty/freetype/src/base/ftotval.c17
-rw-r--r--src/3rdparty/freetype/src/base/ftoutln.c357
-rw-r--r--src/3rdparty/freetype/src/base/ftpatent.c2
-rw-r--r--src/3rdparty/freetype/src/base/ftpfr.c28
-rw-r--r--src/3rdparty/freetype/src/base/ftpic.c15
-rw-r--r--src/3rdparty/freetype/src/base/ftrfork.c164
-rw-r--r--src/3rdparty/freetype/src/base/ftsnames.c2
-rw-r--r--src/3rdparty/freetype/src/base/ftstream.c142
-rw-r--r--src/3rdparty/freetype/src/base/ftstroke.c900
-rw-r--r--src/3rdparty/freetype/src/base/ftsynth.c41
-rw-r--r--src/3rdparty/freetype/src/base/ftsystem.c32
-rw-r--r--src/3rdparty/freetype/src/base/fttrigon.c368
-rw-r--r--src/3rdparty/freetype/src/base/fttype1.c69
-rw-r--r--src/3rdparty/freetype/src/base/ftutil.c142
-rw-r--r--src/3rdparty/freetype/src/base/ftwinfnt.c22
-rw-r--r--src/3rdparty/freetype/src/base/md5.c296
-rw-r--r--src/3rdparty/freetype/src/base/md5.h45
-rw-r--r--src/3rdparty/freetype/src/base/rules.mk16
-rw-r--r--src/3rdparty/freetype/src/bdf/README4
-rw-r--r--src/3rdparty/freetype/src/bdf/bdf.h8
-rw-r--r--src/3rdparty/freetype/src/bdf/bdfdrivr.c116
-rw-r--r--src/3rdparty/freetype/src/bdf/bdfdrivr.h2
-rw-r--r--src/3rdparty/freetype/src/bdf/bdferror.h3
-rw-r--r--src/3rdparty/freetype/src/bdf/bdflib.c520
-rw-r--r--src/3rdparty/freetype/src/bzip2/Jamfile19
-rw-r--r--src/3rdparty/freetype/src/bzip2/ftbzip2.c519
-rw-r--r--src/3rdparty/freetype/src/bzip2/rules.mk63
-rw-r--r--src/3rdparty/freetype/src/cache/Jamfile4
-rw-r--r--src/3rdparty/freetype/src/cache/ftcbasic.c370
-rw-r--r--src/3rdparty/freetype/src/cache/ftccache.c116
-rw-r--r--src/3rdparty/freetype/src/cache/ftccache.h82
-rw-r--r--src/3rdparty/freetype/src/cache/ftccback.h11
-rw-r--r--src/3rdparty/freetype/src/cache/ftccmap.c141
-rw-r--r--src/3rdparty/freetype/src/cache/ftcerror.h3
-rw-r--r--src/3rdparty/freetype/src/cache/ftcglyph.c20
-rw-r--r--src/3rdparty/freetype/src/cache/ftcglyph.h14
-rw-r--r--src/3rdparty/freetype/src/cache/ftcimage.c4
-rw-r--r--src/3rdparty/freetype/src/cache/ftcmanag.c105
-rw-r--r--src/3rdparty/freetype/src/cache/ftcmanag.h8
-rw-r--r--src/3rdparty/freetype/src/cache/ftcmru.c12
-rw-r--r--src/3rdparty/freetype/src/cache/ftcmru.h4
-rw-r--r--src/3rdparty/freetype/src/cache/ftcsbits.c43
-rw-r--r--src/3rdparty/freetype/src/cache/ftcsbits.h9
-rw-r--r--src/3rdparty/freetype/src/cff/cf2arrst.c241
-rw-r--r--src/3rdparty/freetype/src/cff/cf2arrst.h100
-rw-r--r--src/3rdparty/freetype/src/cff/cf2blues.c579
-rw-r--r--src/3rdparty/freetype/src/cff/cf2blues.h185
-rw-r--r--src/3rdparty/freetype/src/cff/cf2error.c52
-rw-r--r--src/3rdparty/freetype/src/cff/cf2error.h119
-rw-r--r--src/3rdparty/freetype/src/cff/cf2fixed.h95
-rw-r--r--src/3rdparty/freetype/src/cff/cf2font.c512
-rw-r--r--src/3rdparty/freetype/src/cff/cf2font.h116
-rw-r--r--src/3rdparty/freetype/src/cff/cf2ft.c691
-rw-r--r--src/3rdparty/freetype/src/cff/cf2ft.h147
-rw-r--r--src/3rdparty/freetype/src/cff/cf2glue.h144
-rw-r--r--src/3rdparty/freetype/src/cff/cf2hints.c1847
-rw-r--r--src/3rdparty/freetype/src/cff/cf2hints.h289
-rw-r--r--src/3rdparty/freetype/src/cff/cf2intrp.c1545
-rw-r--r--src/3rdparty/freetype/src/cff/cf2intrp.h83
-rw-r--r--src/3rdparty/freetype/src/cff/cf2read.c112
-rw-r--r--src/3rdparty/freetype/src/cff/cf2read.h68
-rw-r--r--src/3rdparty/freetype/src/cff/cf2stack.c205
-rw-r--r--src/3rdparty/freetype/src/cff/cf2stack.h106
-rw-r--r--src/3rdparty/freetype/src/cff/cf2types.h78
-rw-r--r--src/3rdparty/freetype/src/cff/cff.c13
-rw-r--r--src/3rdparty/freetype/src/cff/cffcmap.c43
-rw-r--r--src/3rdparty/freetype/src/cff/cffdrivr.c352
-rw-r--r--src/3rdparty/freetype/src/cff/cfferrs.h3
-rw-r--r--src/3rdparty/freetype/src/cff/cffgload.c414
-rw-r--r--src/3rdparty/freetype/src/cff/cffgload.h41
-rw-r--r--src/3rdparty/freetype/src/cff/cffload.c341
-rw-r--r--src/3rdparty/freetype/src/cff/cffload.h18
-rw-r--r--src/3rdparty/freetype/src/cff/cffobjs.c342
-rw-r--r--src/3rdparty/freetype/src/cff/cffobjs.h14
-rw-r--r--src/3rdparty/freetype/src/cff/cffparse.c548
-rw-r--r--src/3rdparty/freetype/src/cff/cffparse.h6
-rw-r--r--src/3rdparty/freetype/src/cff/cffpic.c123
-rw-r--r--src/3rdparty/freetype/src/cff/cffpic.h90
-rw-r--r--src/3rdparty/freetype/src/cff/cfftoken.h114
-rw-r--r--src/3rdparty/freetype/src/cff/cfftypes.h30
-rw-r--r--src/3rdparty/freetype/src/cff/rules.mk26
-rw-r--r--src/3rdparty/freetype/src/cid/ciderrs.h3
-rw-r--r--src/3rdparty/freetype/src/cid/cidgload.c17
-rw-r--r--src/3rdparty/freetype/src/cid/cidload.c95
-rw-r--r--src/3rdparty/freetype/src/cid/cidobjs.c26
-rw-r--r--src/3rdparty/freetype/src/cid/cidparse.c16
-rw-r--r--src/3rdparty/freetype/src/cid/cidparse.h22
-rw-r--r--src/3rdparty/freetype/src/cid/cidriver.c32
-rw-r--r--src/3rdparty/freetype/src/cid/cidriver.h2
-rw-r--r--src/3rdparty/freetype/src/gxvalid/gxvbsln.c56
-rw-r--r--src/3rdparty/freetype/src/gxvalid/gxvcommn.c335
-rw-r--r--src/3rdparty/freetype/src/gxvalid/gxvcommn.h97
-rw-r--r--src/3rdparty/freetype/src/gxvalid/gxverror.h8
-rw-r--r--src/3rdparty/freetype/src/gxvalid/gxvfeat.c67
-rw-r--r--src/3rdparty/freetype/src/gxvalid/gxvjust.c275
-rw-r--r--src/3rdparty/freetype/src/gxvalid/gxvkern.c218
-rw-r--r--src/3rdparty/freetype/src/gxvalid/gxvlcar.c36
-rw-r--r--src/3rdparty/freetype/src/gxvalid/gxvmod.c12
-rw-r--r--src/3rdparty/freetype/src/gxvalid/gxvmod.h2
-rw-r--r--src/3rdparty/freetype/src/gxvalid/gxvmort.c76
-rw-r--r--src/3rdparty/freetype/src/gxvalid/gxvmort.h14
-rw-r--r--src/3rdparty/freetype/src/gxvalid/gxvmort0.c32
-rw-r--r--src/3rdparty/freetype/src/gxvalid/gxvmort1.c69
-rw-r--r--src/3rdparty/freetype/src/gxvalid/gxvmort2.c81
-rw-r--r--src/3rdparty/freetype/src/gxvalid/gxvmort4.c18
-rw-r--r--src/3rdparty/freetype/src/gxvalid/gxvmort5.c39
-rw-r--r--src/3rdparty/freetype/src/gxvalid/gxvmorx.c51
-rw-r--r--src/3rdparty/freetype/src/gxvalid/gxvmorx.h10
-rw-r--r--src/3rdparty/freetype/src/gxvalid/gxvmorx0.c24
-rw-r--r--src/3rdparty/freetype/src/gxvalid/gxvmorx1.c57
-rw-r--r--src/3rdparty/freetype/src/gxvalid/gxvmorx2.c86
-rw-r--r--src/3rdparty/freetype/src/gxvalid/gxvmorx4.c4
-rw-r--r--src/3rdparty/freetype/src/gxvalid/gxvmorx5.c42
-rw-r--r--src/3rdparty/freetype/src/gxvalid/gxvopbd.c32
-rw-r--r--src/3rdparty/freetype/src/gxvalid/gxvprop.c70
-rw-r--r--src/3rdparty/freetype/src/gxvalid/gxvtrak.c65
-rw-r--r--src/3rdparty/freetype/src/gzip/ftgzip.c147
-rw-r--r--src/3rdparty/freetype/src/gzip/inftrees.c10
-rw-r--r--src/3rdparty/freetype/src/gzip/rules.mk57
-rw-r--r--src/3rdparty/freetype/src/gzip/zconf.h7
-rw-r--r--src/3rdparty/freetype/src/gzip/zlib.h7
-rw-r--r--src/3rdparty/freetype/src/gzip/zutil.h2
-rw-r--r--src/3rdparty/freetype/src/lzw/ftlzw.c35
-rw-r--r--src/3rdparty/freetype/src/lzw/ftzopen.c26
-rw-r--r--src/3rdparty/freetype/src/lzw/ftzopen.h2
-rw-r--r--src/3rdparty/freetype/src/otvalid/otvbase.c50
-rw-r--r--src/3rdparty/freetype/src/otvalid/otvcommn.c170
-rw-r--r--src/3rdparty/freetype/src/otvalid/otvcommn.h158
-rw-r--r--src/3rdparty/freetype/src/otvalid/otverror.h5
-rw-r--r--src/3rdparty/freetype/src/otvalid/otvgdef.c36
-rw-r--r--src/3rdparty/freetype/src/otvalid/otvgpos.c186
-rw-r--r--src/3rdparty/freetype/src/otvalid/otvgsub.c108
-rw-r--r--src/3rdparty/freetype/src/otvalid/otvjstf.c83
-rw-r--r--src/3rdparty/freetype/src/otvalid/otvmath.c75
-rw-r--r--src/3rdparty/freetype/src/otvalid/otvmod.c14
-rw-r--r--src/3rdparty/freetype/src/otvalid/otvmod.h2
-rw-r--r--src/3rdparty/freetype/src/pcf/README26
-rw-r--r--src/3rdparty/freetype/src/pcf/pcf.h6
-rw-r--r--src/3rdparty/freetype/src/pcf/pcfdrivr.c146
-rw-r--r--src/3rdparty/freetype/src/pcf/pcfdrivr.h2
-rw-r--r--src/3rdparty/freetype/src/pcf/pcferror.h3
-rw-r--r--src/3rdparty/freetype/src/pcf/pcfread.c260
-rw-r--r--src/3rdparty/freetype/src/pcf/pcfutil.c12
-rw-r--r--src/3rdparty/freetype/src/pfr/pfrcmap.c23
-rw-r--r--src/3rdparty/freetype/src/pfr/pfrdrivr.c36
-rw-r--r--src/3rdparty/freetype/src/pfr/pfrdrivr.h2
-rw-r--r--src/3rdparty/freetype/src/pfr/pfrerror.h3
-rw-r--r--src/3rdparty/freetype/src/pfr/pfrgload.c50
-rw-r--r--src/3rdparty/freetype/src/pfr/pfrload.c35
-rw-r--r--src/3rdparty/freetype/src/pfr/pfrobjs.c42
-rw-r--r--src/3rdparty/freetype/src/pfr/pfrsbit.c22
-rw-r--r--src/3rdparty/freetype/src/psaux/afmparse.c52
-rw-r--r--src/3rdparty/freetype/src/psaux/afmparse.h3
-rw-r--r--src/3rdparty/freetype/src/psaux/psauxerr.h3
-rw-r--r--src/3rdparty/freetype/src/psaux/psauxmod.c2
-rw-r--r--src/3rdparty/freetype/src/psaux/psauxmod.h2
-rw-r--r--src/3rdparty/freetype/src/psaux/psconv.c227
-rw-r--r--src/3rdparty/freetype/src/psaux/psconv.h10
-rw-r--r--src/3rdparty/freetype/src/psaux/psobjs.c174
-rw-r--r--src/3rdparty/freetype/src/psaux/t1cmap.c30
-rw-r--r--src/3rdparty/freetype/src/psaux/t1decode.c238
-rw-r--r--src/3rdparty/freetype/src/pshinter/pshalgo.c32
-rw-r--r--src/3rdparty/freetype/src/pshinter/pshalgo.h11
-rw-r--r--src/3rdparty/freetype/src/pshinter/pshglob.c59
-rw-r--r--src/3rdparty/freetype/src/pshinter/pshglob.h4
-rw-r--r--src/3rdparty/freetype/src/pshinter/pshmod.c17
-rw-r--r--src/3rdparty/freetype/src/pshinter/pshnterr.h3
-rw-r--r--src/3rdparty/freetype/src/pshinter/pshpic.c45
-rw-r--r--src/3rdparty/freetype/src/pshinter/pshpic.h24
-rw-r--r--src/3rdparty/freetype/src/pshinter/pshrec.c54
-rw-r--r--src/3rdparty/freetype/src/pshinter/pshrec.h4
-rw-r--r--src/3rdparty/freetype/src/pshinter/rules.mk7
-rw-r--r--src/3rdparty/freetype/src/psnames/psmodule.c74
-rw-r--r--src/3rdparty/freetype/src/psnames/psnamerr.h3
-rw-r--r--src/3rdparty/freetype/src/psnames/pspic.c70
-rw-r--r--src/3rdparty/freetype/src/psnames/pspic.h32
-rw-r--r--src/3rdparty/freetype/src/psnames/pstables.h5787
-rw-r--r--src/3rdparty/freetype/src/psnames/rules.mk11
-rw-r--r--src/3rdparty/freetype/src/raster/ftmisc.h37
-rw-r--r--src/3rdparty/freetype/src/raster/ftraster.c298
-rw-r--r--src/3rdparty/freetype/src/raster/ftrend1.c47
-rw-r--r--src/3rdparty/freetype/src/raster/rasterrs.h3
-rw-r--r--src/3rdparty/freetype/src/raster/rastpic.c68
-rw-r--r--src/3rdparty/freetype/src/raster/rastpic.h33
-rw-r--r--src/3rdparty/freetype/src/raster/rules.mk5
-rw-r--r--src/3rdparty/freetype/src/sfnt/pngshim.c377
-rw-r--r--src/3rdparty/freetype/src/sfnt/pngshim.h49
-rw-r--r--src/3rdparty/freetype/src/sfnt/rules.mk11
-rw-r--r--src/3rdparty/freetype/src/sfnt/sfdriver.c370
-rw-r--r--src/3rdparty/freetype/src/sfnt/sferrors.h5
-rw-r--r--src/3rdparty/freetype/src/sfnt/sfnt.c3
-rw-r--r--src/3rdparty/freetype/src/sfnt/sfntpic.c126
-rw-r--r--src/3rdparty/freetype/src/sfnt/sfntpic.h90
-rw-r--r--src/3rdparty/freetype/src/sfnt/sfobjs.c635
-rw-r--r--src/3rdparty/freetype/src/sfnt/ttbdf.c16
-rw-r--r--src/3rdparty/freetype/src/sfnt/ttcmap.c507
-rw-r--r--src/3rdparty/freetype/src/sfnt/ttcmap.h109
-rw-r--r--src/3rdparty/freetype/src/sfnt/ttcmapc.h19
-rw-r--r--src/3rdparty/freetype/src/sfnt/ttkern.c14
-rw-r--r--src/3rdparty/freetype/src/sfnt/ttload.c144
-rw-r--r--src/3rdparty/freetype/src/sfnt/ttmtx.c216
-rw-r--r--src/3rdparty/freetype/src/sfnt/ttmtx.h4
-rw-r--r--src/3rdparty/freetype/src/sfnt/ttpost.c90
-rw-r--r--src/3rdparty/freetype/src/sfnt/ttsbit.c2253
-rw-r--r--src/3rdparty/freetype/src/sfnt/ttsbit.h22
-rw-r--r--src/3rdparty/freetype/src/sfnt/ttsbit0.c1011
-rw-r--r--src/3rdparty/freetype/src/smooth/ftgrays.c633
-rw-r--r--src/3rdparty/freetype/src/smooth/ftsmerrs.h3
-rw-r--r--src/3rdparty/freetype/src/smooth/ftsmooth.c188
-rw-r--r--src/3rdparty/freetype/src/smooth/ftspic.c79
-rw-r--r--src/3rdparty/freetype/src/smooth/ftspic.h38
-rw-r--r--src/3rdparty/freetype/src/smooth/rules.mk5
-rw-r--r--src/3rdparty/freetype/src/tools/afblue.pl548
-rw-r--r--src/3rdparty/freetype/src/tools/apinames.c55
-rw-r--r--src/3rdparty/freetype/src/tools/chktrcmp.py4
-rw-r--r--src/3rdparty/freetype/src/tools/cordic.py62
-rw-r--r--src/3rdparty/freetype/src/tools/docmaker/content.py229
-rw-r--r--src/3rdparty/freetype/src/tools/docmaker/docmaker.py39
-rw-r--r--src/3rdparty/freetype/src/tools/docmaker/formatter.py73
-rw-r--r--src/3rdparty/freetype/src/tools/docmaker/sources.py236
-rw-r--r--src/3rdparty/freetype/src/tools/docmaker/tohtml.py478
-rw-r--r--src/3rdparty/freetype/src/tools/docmaker/utils.py81
-rw-r--r--src/3rdparty/freetype/src/tools/ftrandom/README2
-rw-r--r--src/3rdparty/freetype/src/tools/ftrandom/ftrandom.c38
-rw-r--r--src/3rdparty/freetype/src/tools/glnames.py214
-rw-r--r--src/3rdparty/freetype/src/tools/test_afm.c2
-rw-r--r--src/3rdparty/freetype/src/tools/test_bbox.c34
-rw-r--r--src/3rdparty/freetype/src/tools/test_trig.c98
-rw-r--r--src/3rdparty/freetype/src/truetype/rules.mk12
-rw-r--r--src/3rdparty/freetype/src/truetype/truetype.c3
-rw-r--r--src/3rdparty/freetype/src/truetype/ttdriver.c186
-rw-r--r--src/3rdparty/freetype/src/truetype/tterrors.h3
-rw-r--r--src/3rdparty/freetype/src/truetype/ttgload.c890
-rw-r--r--src/3rdparty/freetype/src/truetype/ttgload.h5
-rw-r--r--src/3rdparty/freetype/src/truetype/ttgxvar.c130
-rw-r--r--src/3rdparty/freetype/src/truetype/ttinterp.c2676
-rw-r--r--src/3rdparty/freetype/src/truetype/ttinterp.h111
-rw-r--r--src/3rdparty/freetype/src/truetype/ttobjs.c545
-rw-r--r--src/3rdparty/freetype/src/truetype/ttobjs.h43
-rw-r--r--src/3rdparty/freetype/src/truetype/ttpic.c74
-rw-r--r--src/3rdparty/freetype/src/truetype/ttpic.h48
-rw-r--r--src/3rdparty/freetype/src/truetype/ttpload.c83
-rw-r--r--src/3rdparty/freetype/src/truetype/ttsubpix.c1011
-rw-r--r--src/3rdparty/freetype/src/truetype/ttsubpix.h110
-rw-r--r--src/3rdparty/freetype/src/type1/t1afm.c28
-rw-r--r--src/3rdparty/freetype/src/type1/t1driver.c468
-rw-r--r--src/3rdparty/freetype/src/type1/t1driver.h2
-rw-r--r--src/3rdparty/freetype/src/type1/t1errors.h3
-rw-r--r--src/3rdparty/freetype/src/type1/t1gload.c90
-rw-r--r--src/3rdparty/freetype/src/type1/t1gload.h10
-rw-r--r--src/3rdparty/freetype/src/type1/t1load.c272
-rw-r--r--src/3rdparty/freetype/src/type1/t1objs.c84
-rw-r--r--src/3rdparty/freetype/src/type1/t1objs.h31
-rw-r--r--src/3rdparty/freetype/src/type1/t1parse.c76
-rw-r--r--src/3rdparty/freetype/src/type1/t1tokens.h2
-rw-r--r--src/3rdparty/freetype/src/type42/t42drivr.c62
-rw-r--r--src/3rdparty/freetype/src/type42/t42drivr.h2
-rw-r--r--src/3rdparty/freetype/src/type42/t42error.h3
-rw-r--r--src/3rdparty/freetype/src/type42/t42objs.c135
-rw-r--r--src/3rdparty/freetype/src/type42/t42objs.h22
-rw-r--r--src/3rdparty/freetype/src/type42/t42parse.c159
-rw-r--r--src/3rdparty/freetype/src/winfonts/fnterrs.h3
-rw-r--r--src/3rdparty/freetype/src/winfonts/winfnt.c205
-rw-r--r--src/3rdparty/freetype/src/winfonts/winfnt.h2
325 files changed, 37956 insertions, 16894 deletions
diff --git a/src/3rdparty/freetype/src/Jamfile b/src/3rdparty/freetype/src/Jamfile
index 76ee0f46e6..1cc06858c0 100644
--- a/src/3rdparty/freetype/src/Jamfile
+++ b/src/3rdparty/freetype/src/Jamfile
@@ -1,6 +1,6 @@
# FreeType 2 src Jamfile
#
-# Copyright 2001, 2002 by
+# Copyright 2001, 2002, 2013 by
# David Turner, Robert Wilhelm, and Werner Lemberg.
#
# This file is part of the FreeType project, and may only be used, modified,
@@ -11,7 +11,7 @@
SubDir FT2_TOP $(FT2_SRC_DIR) ;
-# The file <freetype/internal/internal.h> is used to define macros that are
+# The file <internal/internal.h> is used to define macros that are
# later used in #include statements. It needs to be parsed in order to
# record these definitions.
#
diff --git a/src/3rdparty/freetype/src/autofit/afangles.c b/src/3rdparty/freetype/src/autofit/afangles.c
index e2360d157d..f8b095bef3 100644
--- a/src/3rdparty/freetype/src/autofit/afangles.c
+++ b/src/3rdparty/freetype/src/autofit/afangles.c
@@ -5,7 +5,7 @@
/* Routines used to compute vector angles with limited accuracy */
/* and very high speed. It also contains sorting routines (body). */
/* */
-/* Copyright 2003, 2004, 2005, 2006 by */
+/* Copyright 2003-2006, 2011-2012 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -20,66 +20,6 @@
#include "aftypes.h"
-#if 0
-
- FT_LOCAL_DEF( FT_Int )
- af_corner_is_flat( FT_Pos x_in,
- FT_Pos y_in,
- FT_Pos x_out,
- FT_Pos y_out )
- {
- FT_Pos ax = x_in;
- FT_Pos ay = y_in;
-
- FT_Pos d_in, d_out, d_corner;
-
-
- if ( ax < 0 )
- ax = -ax;
- if ( ay < 0 )
- ay = -ay;
- d_in = ax + ay;
-
- ax = x_out;
- if ( ax < 0 )
- ax = -ax;
- ay = y_out;
- if ( ay < 0 )
- ay = -ay;
- d_out = ax + ay;
-
- ax = x_out + x_in;
- if ( ax < 0 )
- ax = -ax;
- ay = y_out + y_in;
- if ( ay < 0 )
- ay = -ay;
- d_corner = ax + ay;
-
- return ( d_in + d_out - d_corner ) < ( d_corner >> 4 );
- }
-
-
- FT_LOCAL_DEF( FT_Int )
- af_corner_orientation( FT_Pos x_in,
- FT_Pos y_in,
- FT_Pos x_out,
- FT_Pos y_out )
- {
- FT_Pos delta;
-
-
- delta = x_in * y_out - y_in * x_out;
-
- if ( delta == 0 )
- return 0;
- else
- return 1 - 2 * ( delta < 0 );
- }
-
-#endif
-
-
/*
* We are not using `af_angle_atan' anymore, but we keep the source
* code below just in case...
@@ -255,7 +195,7 @@
{
for ( j = i; j > 0; j-- )
{
- if ( table[j] > table[j - 1] )
+ if ( table[j] >= table[j - 1] )
break;
swap = table[j];
@@ -267,18 +207,26 @@
FT_LOCAL_DEF( void )
- af_sort_widths( FT_UInt count,
- AF_Width table )
+ af_sort_and_quantize_widths( FT_UInt* count,
+ AF_Width table,
+ FT_Pos threshold )
{
FT_UInt i, j;
+ FT_UInt cur_idx;
+ FT_Pos cur_val;
+ FT_Pos sum;
AF_WidthRec swap;
- for ( i = 1; i < count; i++ )
+ if ( *count == 1 )
+ return;
+
+ /* sort */
+ for ( i = 1; i < *count; i++ )
{
for ( j = i; j > 0; j-- )
{
- if ( table[j].org > table[j - 1].org )
+ if ( table[j].org >= table[j - 1].org )
break;
swap = table[j];
@@ -286,6 +234,51 @@
table[j - 1] = swap;
}
}
+
+ cur_idx = 0;
+ cur_val = table[cur_idx].org;
+
+ /* compute and use mean values for clusters not larger than */
+ /* `threshold'; this is very primitive and might not yield */
+ /* the best result, but normally, using reference character */
+ /* `o', `*count' is 2, so the code below is fully sufficient */
+ for ( i = 1; i < *count; i++ )
+ {
+ if ( table[i].org - cur_val > threshold ||
+ i == *count - 1 )
+ {
+ sum = 0;
+
+ /* fix loop for end of array */
+ if ( table[i].org - cur_val <= threshold &&
+ i == *count - 1 )
+ i++;
+
+ for ( j = cur_idx; j < i; j++ )
+ {
+ sum += table[j].org;
+ table[j].org = 0;
+ }
+ table[cur_idx].org = sum / j;
+
+ if ( i < *count - 1 )
+ {
+ cur_idx = i + 1;
+ cur_val = table[cur_idx].org;
+ }
+ }
+ }
+
+ cur_idx = 1;
+
+ /* compress array to remove zero values */
+ for ( i = 1; i < *count; i++ )
+ {
+ if ( table[i].org )
+ table[cur_idx++] = table[i];
+ }
+
+ *count = cur_idx;
}
diff --git a/src/3rdparty/freetype/src/autofit/afblue.c b/src/3rdparty/freetype/src/autofit/afblue.c
new file mode 100644
index 0000000000..811226eac3
--- /dev/null
+++ b/src/3rdparty/freetype/src/autofit/afblue.c
@@ -0,0 +1,177 @@
+/* This file has been generated by the Perl script `afblue.pl', */
+/* using data from file `afblue.dat'. */
+
+/***************************************************************************/
+/* */
+/* afblue.c */
+/* */
+/* Auto-fitter data for blue strings (body). */
+/* */
+/* Copyright 2013 by */
+/* David Turner, Robert Wilhelm, and Werner Lemberg. */
+/* */
+/* This file is part of the FreeType project, and may only be used, */
+/* modified, and distributed under the terms of the FreeType project */
+/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
+/* this file you indicate that you have read the license and */
+/* understand and accept it fully. */
+/* */
+/***************************************************************************/
+
+
+#include "aftypes.h"
+
+
+ FT_LOCAL_ARRAY_DEF( char )
+ af_blue_strings[] =
+ {
+ /* */
+ '\xD0', '\x91', '\xD0', '\x92', '\xD0', '\x95', '\xD0', '\x9F', '\xD0', '\x97', '\xD0', '\x9E', '\xD0', '\xA1', '\xD0', '\xAD', /* БВЕПЗОСЭ */
+ '\0',
+ '\xD0', '\x91', '\xD0', '\x92', '\xD0', '\x95', '\xD0', '\xA8', '\xD0', '\x97', '\xD0', '\x9E', '\xD0', '\xA1', '\xD0', '\xAD', /* БВЕШЗОСЭ */
+ '\0',
+ '\xD1', '\x85', '\xD0', '\xBF', '\xD0', '\xBD', '\xD1', '\x88', '\xD0', '\xB5', '\xD0', '\xB7', '\xD0', '\xBE', '\xD1', '\x81', /* хпншезос */
+ '\0',
+ '\xD1', '\x80', '\xD1', '\x83', '\xD1', '\x84', /* руф */
+ '\0',
+ '\xE0', '\xA4', '\x95', '\xE0', '\xA4', '\xAE', '\xE0', '\xA4', '\x85', '\xE0', '\xA4', '\x86', '\xE0', '\xA4', '\xA5', '\xE0', '\xA4', '\xA7', '\xE0', '\xA4', '\xAD', '\xE0', '\xA4', '\xB6', /* क म अ आ थ ध भ श */
+ '\0',
+ '\xE0', '\xA4', '\x88', '\xE0', '\xA4', '\x90', '\xE0', '\xA4', '\x93', '\xE0', '\xA4', '\x94', '\xE0', '\xA4', '\xBF', '\xE0', '\xA5', '\x80', '\xE0', '\xA5', '\x8B', '\xE0', '\xA5', '\x8C', /* ई ऐ ओ औ ि ी ो ौ */
+ '\0',
+ '\xE0', '\xA4', '\x95', '\xE0', '\xA4', '\xAE', '\xE0', '\xA4', '\x85', '\xE0', '\xA4', '\x86', '\xE0', '\xA4', '\xA5', '\xE0', '\xA4', '\xA7', '\xE0', '\xA4', '\xAD', '\xE0', '\xA4', '\xB6', /* क म अ आ थ ध भ श */
+ '\0',
+ '\xE0', '\xA5', '\x81', '\xE0', '\xA5', '\x83', /* ु ृ */
+ '\0',
+ '\xCE', '\x93', '\xCE', '\x92', '\xCE', '\x95', '\xCE', '\x96', '\xCE', '\x98', '\xCE', '\x9F', '\xCE', '\xA9', /* ΓΒΕΖΘΟΩ */
+ '\0',
+ '\xCE', '\x92', '\xCE', '\x94', '\xCE', '\x96', '\xCE', '\x9E', '\xCE', '\x98', '\xCE', '\x9F', /* ΒΔΖΞΘΟ */
+ '\0',
+ '\xCE', '\xB2', '\xCE', '\xB8', '\xCE', '\xB4', '\xCE', '\xB6', '\xCE', '\xBB', '\xCE', '\xBE', /* βθδζλξ */
+ '\0',
+ '\xCE', '\xB1', '\xCE', '\xB5', '\xCE', '\xB9', '\xCE', '\xBF', '\xCF', '\x80', '\xCF', '\x83', '\xCF', '\x84', '\xCF', '\x89', /* αειοπστω */
+ '\0',
+ '\xCE', '\xB2', '\xCE', '\xB3', '\xCE', '\xB7', '\xCE', '\xBC', '\xCF', '\x81', '\xCF', '\x86', '\xCF', '\x87', '\xCF', '\x88', /* βγημρφχψ */
+ '\0',
+ '\xD7', '\x91', '\xD7', '\x93', '\xD7', '\x94', '\xD7', '\x97', '\xD7', '\x9A', '\xD7', '\x9B', '\xD7', '\x9D', '\xD7', '\xA1', /* בדהחךכםס */
+ '\0',
+ '\xD7', '\x91', '\xD7', '\x98', '\xD7', '\x9B', '\xD7', '\x9D', '\xD7', '\xA1', '\xD7', '\xA6', /* בטכםסצ */
+ '\0',
+ '\xD7', '\xA7', '\xD7', '\x9A', '\xD7', '\x9F', '\xD7', '\xA3', '\xD7', '\xA5', /* קךןףץ */
+ '\0',
+ 'T', 'H', 'E', 'Z', 'O', 'C', 'Q', 'S', /* THEZOCQS */
+ '\0',
+ 'H', 'E', 'Z', 'L', 'O', 'C', 'U', 'S', /* HEZLOCUS */
+ '\0',
+ 'f', 'i', 'j', 'k', 'd', 'b', 'h', /* fijkdbh */
+ '\0',
+ 'x', 'z', 'r', 'o', 'e', 's', 'c', /* xzroesc */
+ '\0',
+ 'p', 'q', 'g', 'j', 'y', /* pqgjy */
+ '\0',
+ '\xE0', '\xB0', '\x87', '\xE0', '\xB0', '\x8C', '\xE0', '\xB0', '\x99', '\xE0', '\xB0', '\x9E', '\xE0', '\xB0', '\xA3', '\xE0', '\xB0', '\xB1', '\xE0', '\xB1', '\xAF', /* ఇ ఌ ఙ ఞ ణ ఱ ౯ */
+ '\0',
+ '\xE0', '\xB0', '\x85', '\xE0', '\xB0', '\x95', '\xE0', '\xB0', '\x9A', '\xE0', '\xB0', '\xB0', '\xE0', '\xB0', '\xBD', '\xE0', '\xB1', '\xA8', '\xE0', '\xB1', '\xAC', /* అ క చ ర ఽ ౨ ౬ */
+#ifdef AF_CONFIG_OPTION_CJK
+ '\0',
+ '\xE4', '\xBB', '\x96', '\xE4', '\xBB', '\xAC', '\xE4', '\xBD', '\xA0', '\xE4', '\xBE', '\x86', '\xE5', '\x80', '\x91', '\xE5', '\x88', '\xB0', '\xE5', '\x92', '\x8C', '\xE5', '\x9C', '\xB0', /* 他们你來們到和地 */
+ '\xE5', '\xAF', '\xB9', '\xE5', '\xB0', '\x8D', '\xE5', '\xB0', '\xB1', '\xE5', '\xB8', '\xAD', '\xE6', '\x88', '\x91', '\xE6', '\x97', '\xB6', '\xE6', '\x99', '\x82', '\xE6', '\x9C', '\x83', /* 对對就席我时時會 */
+ '\xE6', '\x9D', '\xA5', '\xE7', '\x82', '\xBA', '\xE8', '\x83', '\xBD', '\xE8', '\x88', '\xB0', '\xE8', '\xAA', '\xAA', '\xE8', '\xAF', '\xB4', '\xE8', '\xBF', '\x99', '\xE9', '\x80', '\x99', /* 来為能舰說说这這 */
+ '\xE9', '\xBD', '\x8A', '|', /* 齊 | */
+ '\xE5', '\x86', '\x9B', '\xE5', '\x90', '\x8C', '\xE5', '\xB7', '\xB2', '\xE6', '\x84', '\xBF', '\xE6', '\x97', '\xA2', '\xE6', '\x98', '\x9F', '\xE6', '\x98', '\xAF', '\xE6', '\x99', '\xAF', /* 军同已愿既星是景 */
+ '\xE6', '\xB0', '\x91', '\xE7', '\x85', '\xA7', '\xE7', '\x8E', '\xB0', '\xE7', '\x8F', '\xBE', '\xE7', '\x90', '\x86', '\xE7', '\x94', '\xA8', '\xE7', '\xBD', '\xAE', '\xE8', '\xA6', '\x81', /* 民照现現理用置要 */
+ '\xE8', '\xBB', '\x8D', '\xE9', '\x82', '\xA3', '\xE9', '\x85', '\x8D', '\xE9', '\x87', '\x8C', '\xE9', '\x96', '\x8B', '\xE9', '\x9B', '\xB7', '\xE9', '\x9C', '\xB2', '\xE9', '\x9D', '\xA2', /* 軍那配里開雷露面 */
+ '\xE9', '\xA1', '\xBE', /* 顾 */
+ '\0',
+ '\xE4', '\xB8', '\xAA', '\xE4', '\xB8', '\xBA', '\xE4', '\xBA', '\xBA', '\xE4', '\xBB', '\x96', '\xE4', '\xBB', '\xA5', '\xE4', '\xBB', '\xAC', '\xE4', '\xBD', '\xA0', '\xE4', '\xBE', '\x86', /* 个为人他以们你來 */
+ '\xE5', '\x80', '\x8B', '\xE5', '\x80', '\x91', '\xE5', '\x88', '\xB0', '\xE5', '\x92', '\x8C', '\xE5', '\xA4', '\xA7', '\xE5', '\xAF', '\xB9', '\xE5', '\xB0', '\x8D', '\xE5', '\xB0', '\xB1', /* 個們到和大对對就 */
+ '\xE6', '\x88', '\x91', '\xE6', '\x97', '\xB6', '\xE6', '\x99', '\x82', '\xE6', '\x9C', '\x89', '\xE6', '\x9D', '\xA5', '\xE7', '\x82', '\xBA', '\xE8', '\xA6', '\x81', '\xE8', '\xAA', '\xAA', /* 我时時有来為要說 */
+ '\xE8', '\xAF', '\xB4', '|', /* 说 | */
+ '\xE4', '\xB8', '\xBB', '\xE4', '\xBA', '\x9B', '\xE5', '\x9B', '\xA0', '\xE5', '\xAE', '\x83', '\xE6', '\x83', '\xB3', '\xE6', '\x84', '\x8F', '\xE7', '\x90', '\x86', '\xE7', '\x94', '\x9F', /* 主些因它想意理生 */
+ '\xE7', '\x95', '\xB6', '\xE7', '\x9C', '\x8B', '\xE7', '\x9D', '\x80', '\xE7', '\xBD', '\xAE', '\xE8', '\x80', '\x85', '\xE8', '\x87', '\xAA', '\xE8', '\x91', '\x97', '\xE8', '\xA3', '\xA1', /* 當看着置者自著裡 */
+ '\xE8', '\xBF', '\x87', '\xE8', '\xBF', '\x98', '\xE8', '\xBF', '\x9B', '\xE9', '\x80', '\xB2', '\xE9', '\x81', '\x8E', '\xE9', '\x81', '\x93', '\xE9', '\x82', '\x84', '\xE9', '\x87', '\x8C', /* 过还进進過道還里 */
+ '\xE9', '\x9D', '\xA2', /* 面 */
+#ifdef AF_CONFIG_OPTION_CJK_BLUE_HANI_VERT
+ '\0',
+ '\xE4', '\xBA', '\x9B', '\xE4', '\xBB', '\xAC', '\xE4', '\xBD', '\xA0', '\xE4', '\xBE', '\x86', '\xE5', '\x80', '\x91', '\xE5', '\x88', '\xB0', '\xE5', '\x92', '\x8C', '\xE5', '\x9C', '\xB0', /* 些们你來們到和地 */
+ '\xE5', '\xA5', '\xB9', '\xE5', '\xB0', '\x86', '\xE5', '\xB0', '\x87', '\xE5', '\xB0', '\xB1', '\xE5', '\xB9', '\xB4', '\xE5', '\xBE', '\x97', '\xE6', '\x83', '\x85', '\xE6', '\x9C', '\x80', /* 她将將就年得情最 */
+ '\xE6', '\xA0', '\xB7', '\xE6', '\xA8', '\xA3', '\xE7', '\x90', '\x86', '\xE8', '\x83', '\xBD', '\xE8', '\xAA', '\xAA', '\xE8', '\xAF', '\xB4', '\xE8', '\xBF', '\x99', '\xE9', '\x80', '\x99', /* 样樣理能說说这這 */
+ '\xE9', '\x80', '\x9A', '|', /* 通 | */
+ '\xE5', '\x8D', '\xB3', '\xE5', '\x90', '\x97', '\xE5', '\x90', '\xA7', '\xE5', '\x90', '\xAC', '\xE5', '\x91', '\xA2', '\xE5', '\x93', '\x81', '\xE5', '\x93', '\x8D', '\xE5', '\x97', '\x8E', /* 即吗吧听呢品响嗎 */
+ '\xE5', '\xB8', '\x88', '\xE5', '\xB8', '\xAB', '\xE6', '\x94', '\xB6', '\xE6', '\x96', '\xAD', '\xE6', '\x96', '\xB7', '\xE6', '\x98', '\x8E', '\xE7', '\x9C', '\xBC', '\xE9', '\x96', '\x93', /* 师師收断斷明眼間 */
+ '\xE9', '\x97', '\xB4', '\xE9', '\x99', '\x85', '\xE9', '\x99', '\x88', '\xE9', '\x99', '\x90', '\xE9', '\x99', '\xA4', '\xE9', '\x99', '\xB3', '\xE9', '\x9A', '\x8F', '\xE9', '\x9A', '\x9B', /* 间际陈限除陳随際 */
+ '\xE9', '\x9A', '\xA8', /* 隨 */
+ '\0',
+ '\xE4', '\xBA', '\x8B', '\xE5', '\x89', '\x8D', '\xE5', '\xAD', '\xB8', '\xE5', '\xB0', '\x86', '\xE5', '\xB0', '\x87', '\xE6', '\x83', '\x85', '\xE6', '\x83', '\xB3', '\xE6', '\x88', '\x96', /* 事前學将將情想或 */
+ '\xE6', '\x94', '\xBF', '\xE6', '\x96', '\xAF', '\xE6', '\x96', '\xB0', '\xE6', '\xA0', '\xB7', '\xE6', '\xA8', '\xA3', '\xE6', '\xB0', '\x91', '\xE6', '\xB2', '\x92', '\xE6', '\xB2', '\xA1', /* 政斯新样樣民沒没 */
+ '\xE7', '\x84', '\xB6', '\xE7', '\x89', '\xB9', '\xE7', '\x8E', '\xB0', '\xE7', '\x8F', '\xBE', '\xE7', '\x90', '\x83', '\xE7', '\xAC', '\xAC', '\xE7', '\xB6', '\x93', '\xE8', '\xB0', '\x81', /* 然特现現球第經谁 */
+ '\xE8', '\xB5', '\xB7', '|', /* 起 | */
+ '\xE4', '\xBE', '\x8B', '\xE5', '\x88', '\xA5', '\xE5', '\x88', '\xAB', '\xE5', '\x88', '\xB6', '\xE5', '\x8A', '\xA8', '\xE5', '\x8B', '\x95', '\xE5', '\x90', '\x97', '\xE5', '\x97', '\x8E', /* 例別别制动動吗嗎 */
+ '\xE5', '\xA2', '\x9E', '\xE6', '\x8C', '\x87', '\xE6', '\x98', '\x8E', '\xE6', '\x9C', '\x9D', '\xE6', '\x9C', '\x9F', '\xE6', '\x9E', '\x84', '\xE7', '\x89', '\xA9', '\xE7', '\xA1', '\xAE', /* 增指明朝期构物确 */
+ '\xE7', '\xA7', '\x8D', '\xE8', '\xAA', '\xBF', '\xE8', '\xB0', '\x83', '\xE8', '\xB2', '\xBB', '\xE8', '\xB4', '\xB9', '\xE9', '\x82', '\xA3', '\xE9', '\x83', '\xBD', '\xE9', '\x96', '\x93', /* 种調调費费那都間 */
+ '\xE9', '\x97', '\xB4', /* 间 */
+#endif /* AF_CONFIG_OPTION_CJK_BLUE_HANI_VERT */
+#endif /* AF_CONFIG_OPTION_CJK */
+ '\0',
+
+ };
+
+
+ /* stringsets are specific to styles */
+ FT_LOCAL_ARRAY_DEF( AF_Blue_StringRec )
+ af_blue_stringsets[] =
+ {
+ /* */
+ { AF_BLUE_STRING_CYRILLIC_CAPITAL_TOP, AF_BLUE_PROPERTY_LATIN_TOP },
+ { AF_BLUE_STRING_CYRILLIC_CAPITAL_BOTTOM, 0 },
+ { AF_BLUE_STRING_CYRILLIC_SMALL, AF_BLUE_PROPERTY_LATIN_TOP |
+ AF_BLUE_PROPERTY_LATIN_X_HEIGHT },
+ { AF_BLUE_STRING_CYRILLIC_SMALL, 0 },
+ { AF_BLUE_STRING_CYRILLIC_SMALL_DESCENDER, 0 },
+ { AF_BLUE_STRING_MAX, 0 },
+ { AF_BLUE_STRING_DEVANAGARI_TOP, AF_BLUE_PROPERTY_LATIN_TOP },
+ { AF_BLUE_STRING_DEVANAGARI_HEAD, AF_BLUE_PROPERTY_LATIN_TOP },
+ { AF_BLUE_STRING_DEVANAGARI_BASE, AF_BLUE_PROPERTY_LATIN_TOP |
+ AF_BLUE_PROPERTY_LATIN_NEUTRAL |
+ AF_BLUE_PROPERTY_LATIN_X_HEIGHT },
+ { AF_BLUE_STRING_DEVANAGARI_BASE, 0 },
+ { AF_BLUE_STRING_DEVANAGARI_BOTTOM, 0 },
+ { AF_BLUE_STRING_MAX, 0 },
+ { AF_BLUE_STRING_GREEK_CAPITAL_TOP, AF_BLUE_PROPERTY_LATIN_TOP },
+ { AF_BLUE_STRING_GREEK_CAPITAL_BOTTOM, 0 },
+ { AF_BLUE_STRING_GREEK_SMALL_BETA_TOP, AF_BLUE_PROPERTY_LATIN_TOP },
+ { AF_BLUE_STRING_GREEK_SMALL, AF_BLUE_PROPERTY_LATIN_TOP |
+ AF_BLUE_PROPERTY_LATIN_X_HEIGHT },
+ { AF_BLUE_STRING_GREEK_SMALL, 0 },
+ { AF_BLUE_STRING_GREEK_SMALL_DESCENDER, 0 },
+ { AF_BLUE_STRING_MAX, 0 },
+ { AF_BLUE_STRING_HEBREW_TOP, AF_BLUE_PROPERTY_LATIN_TOP |
+ AF_BLUE_PROPERTY_LATIN_LONG },
+ { AF_BLUE_STRING_HEBREW_BOTTOM, 0 },
+ { AF_BLUE_STRING_HEBREW_DESCENDER, 0 },
+ { AF_BLUE_STRING_MAX, 0 },
+ { AF_BLUE_STRING_LATIN_CAPITAL_TOP, AF_BLUE_PROPERTY_LATIN_TOP },
+ { AF_BLUE_STRING_LATIN_CAPITAL_BOTTOM, 0 },
+ { AF_BLUE_STRING_LATIN_SMALL_F_TOP, AF_BLUE_PROPERTY_LATIN_TOP },
+ { AF_BLUE_STRING_LATIN_SMALL, AF_BLUE_PROPERTY_LATIN_TOP |
+ AF_BLUE_PROPERTY_LATIN_X_HEIGHT },
+ { AF_BLUE_STRING_LATIN_SMALL, 0 },
+ { AF_BLUE_STRING_LATIN_SMALL_DESCENDER, 0 },
+ { AF_BLUE_STRING_MAX, 0 },
+ { AF_BLUE_STRING_TELUGU_TOP, AF_BLUE_PROPERTY_LATIN_TOP },
+ { AF_BLUE_STRING_TELUGU_BOTTOM, 0 },
+ { AF_BLUE_STRING_MAX, 0 },
+#ifdef AF_CONFIG_OPTION_CJK
+ { AF_BLUE_STRING_CJK_TOP, AF_BLUE_PROPERTY_CJK_TOP },
+ { AF_BLUE_STRING_CJK_BOTTOM, 0 },
+#ifdef AF_CONFIG_OPTION_CJK_BLUE_HANI_VERT
+ { AF_BLUE_STRING_CJK_LEFT, AF_BLUE_PROPERTY_CJK_HORIZ },
+ { AF_BLUE_STRING_CJK_RIGHT, AF_BLUE_PROPERTY_CJK_HORIZ |
+ AF_BLUE_PROPERTY_CJK_RIGHT },
+#endif /* AF_CONFIG_OPTION_CJK_BLUE_HANI_VERT */
+ { AF_BLUE_STRING_MAX, 0 },
+#endif /* AF_CONFIG_OPTION_CJK */
+
+ };
+
+
+/* END */
diff --git a/src/3rdparty/freetype/src/autofit/afblue.cin b/src/3rdparty/freetype/src/autofit/afblue.cin
new file mode 100644
index 0000000000..c6762bec30
--- /dev/null
+++ b/src/3rdparty/freetype/src/autofit/afblue.cin
@@ -0,0 +1,39 @@
+/***************************************************************************/
+/* */
+/* afblue.c */
+/* */
+/* Auto-fitter data for blue strings (body). */
+/* */
+/* Copyright 2013 by */
+/* David Turner, Robert Wilhelm, and Werner Lemberg. */
+/* */
+/* This file is part of the FreeType project, and may only be used, */
+/* modified, and distributed under the terms of the FreeType project */
+/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
+/* this file you indicate that you have read the license and */
+/* understand and accept it fully. */
+/* */
+/***************************************************************************/
+
+
+#include "aftypes.h"
+
+
+ FT_LOCAL_ARRAY_DEF( char )
+ af_blue_strings[] =
+ {
+ /* */
+@AF_BLUE_STRINGS_ARRAY@
+ };
+
+
+ /* stringsets are specific to styles */
+ FT_LOCAL_ARRAY_DEF( AF_Blue_StringRec )
+ af_blue_stringsets[] =
+ {
+ /* */
+@AF_BLUE_STRINGSETS_ARRAY@
+ };
+
+
+/* END */
diff --git a/src/3rdparty/freetype/src/autofit/afblue.dat b/src/3rdparty/freetype/src/autofit/afblue.dat
new file mode 100644
index 0000000000..3f98c13b24
--- /dev/null
+++ b/src/3rdparty/freetype/src/autofit/afblue.dat
@@ -0,0 +1,337 @@
+// afblue.dat
+//
+// Auto-fitter data for blue strings.
+//
+// Copyright 2013, 2014 by
+// David Turner, Robert Wilhelm, and Werner Lemberg.
+//
+// This file is part of the FreeType project, and may only be used,
+// modified, and distributed under the terms of the FreeType project
+// license, LICENSE.TXT. By continuing to use, modify, or distribute
+// this file you indicate that you have read the license and
+// understand and accept it fully.
+
+
+// This file contains data specific to blue zones. It gets processed by
+// a script to simulate `jagged arrays', with enumeration values holding
+// offsets into the arrays.
+//
+// The format of the file is rather simple: A section starts with three
+// labels separated by whitespace and followed by a colon (everything in a
+// single line); the first label gives the name of the enumeration template,
+// the second the name of the array template, and the third the name of the
+// `maximum' template, holding the size of the largest array element. The
+// script then fills the corresponding templates (indicated by `@'
+// characters around the name).
+//
+// A section contains one or more data records. Each data record consists
+// of two or more lines. The first line holds the enumeration name, and the
+// remaining lines the corresponding array data.
+//
+// There are two possible representations for array data.
+//
+// - A string of characters in UTF-8 encoding enclosed in double quotes,
+// using C syntax. There can be only one string per line, thus the
+// starting and ending double quote must be the first and last character
+// in the line, respectively, ignoring whitespace before and after the
+// string. Space characters within the string are ignored too. If there
+// are multiple strings (in multiple lines), they are concatenated to a
+// single string. In the output, a string gets represented as a series of
+// singles bytes, followed by a zero byte. The enumeration values simply
+// hold byte offsets to the start of the corresponding strings.
+//
+// - Data blocks enclosed in balanced braces, which get copied verbatim and
+// which can span multiple lines. The opening brace of a block must be
+// the first character of a line (ignoring whitespace), and the closing
+// brace the last (ignoring whitespace also). The script appends a comma
+// character after each block and counts the number of blocks to set the
+// enumeration values.
+//
+// A section can contain either strings only or data blocks only.
+//
+// A comment line starts with `//'; it gets removed. A preprocessor
+// directive line (using the standard syntax of `cpp') starts with `#' and
+// gets copied verbatim to both the enumeration and the array. Whitespace
+// outside of a string is insignificant.
+//
+// Preprocessor directives are ignored while the script computes maximum
+// values; this essentially means that the maximum values can easily be too
+// large. Given that the purpose of those values is to create local
+// fixed-size arrays at compile time for further processing of the blue zone
+// data, this isn't a problem. Note the the final zero byte of a string is
+// not counted. Note also that the count holds the number of UTF-8 encoded
+// characters, not bytes.
+
+
+// The blue zone string data, to be used in the blue stringsets below.
+
+AF_BLUE_STRING_ENUM AF_BLUE_STRINGS_ARRAY AF_BLUE_STRING_MAX_LEN:
+
+ AF_BLUE_STRING_CYRILLIC_CAPITAL_TOP
+ "БВЕПЗОСЭ"
+ AF_BLUE_STRING_CYRILLIC_CAPITAL_BOTTOM
+ "БВЕШЗОСЭ"
+ AF_BLUE_STRING_CYRILLIC_SMALL
+ "хпншезос"
+ AF_BLUE_STRING_CYRILLIC_SMALL_DESCENDER
+ "руф"
+
+ // we separate the letters with spaces to avoid ligatures;
+ // this is just for convenience to simplify reading
+ AF_BLUE_STRING_DEVANAGARI_BASE
+ "क म अ आ थ ध भ श"
+ AF_BLUE_STRING_DEVANAGARI_TOP
+ "ई ऐ ओ औ ि ी ो ौ"
+ // note that some fonts have extreme variation in the height of the
+ // round head elements; for this reason we also define the `base'
+ // blue zone, which must be always present
+ AF_BLUE_STRING_DEVANAGARI_HEAD
+ "क म अ आ थ ध भ श"
+ AF_BLUE_STRING_DEVANAGARI_BOTTOM
+ "ु ृ"
+
+ AF_BLUE_STRING_GREEK_CAPITAL_TOP
+ "ΓΒΕΖΘΟΩ"
+ AF_BLUE_STRING_GREEK_CAPITAL_BOTTOM
+ "ΒΔΖΞΘΟ"
+ AF_BLUE_STRING_GREEK_SMALL_BETA_TOP
+ "βθδζλξ"
+ AF_BLUE_STRING_GREEK_SMALL
+ "αειοπστω"
+ AF_BLUE_STRING_GREEK_SMALL_DESCENDER
+ "βγημρφχψ"
+
+ AF_BLUE_STRING_HEBREW_TOP
+ "בדהחךכםס"
+ AF_BLUE_STRING_HEBREW_BOTTOM
+ "בטכםסצ"
+ AF_BLUE_STRING_HEBREW_DESCENDER
+ "קךןףץ"
+
+ AF_BLUE_STRING_LATIN_CAPITAL_TOP
+ "THEZOCQS"
+ AF_BLUE_STRING_LATIN_CAPITAL_BOTTOM
+ "HEZLOCUS"
+ AF_BLUE_STRING_LATIN_SMALL_F_TOP
+ "fijkdbh"
+ AF_BLUE_STRING_LATIN_SMALL
+ "xzroesc"
+ AF_BLUE_STRING_LATIN_SMALL_DESCENDER
+ "pqgjy"
+
+ // we separate the letters with spaces to avoid ligatures;
+ // this is just for convenience to simplify reading
+ AF_BLUE_STRING_TELUGU_TOP
+ "ఇ ఌ ఙ ఞ ణ ఱ ౯"
+
+ AF_BLUE_STRING_TELUGU_BOTTOM
+ "అ క చ ర ఽ ౨ ౬"
+
+#ifdef AF_CONFIG_OPTION_CJK
+
+ AF_BLUE_STRING_CJK_TOP
+ "他们你來們到和地"
+ "对對就席我时時會"
+ "来為能舰說说这這"
+ "齊 |"
+ "军同已愿既星是景"
+ "民照现現理用置要"
+ "軍那配里開雷露面"
+ "顾"
+ AF_BLUE_STRING_CJK_BOTTOM
+ "个为人他以们你來"
+ "個們到和大对對就"
+ "我时時有来為要說"
+ "说 |"
+ "主些因它想意理生"
+ "當看着置者自著裡"
+ "过还进進過道還里"
+ "面"
+
+#ifdef AF_CONFIG_OPTION_CJK_BLUE_HANI_VERT
+
+ AF_BLUE_STRING_CJK_LEFT
+ "些们你來們到和地"
+ "她将將就年得情最"
+ "样樣理能說说这這"
+ "通 |"
+ "即吗吧听呢品响嗎"
+ "师師收断斷明眼間"
+ "间际陈限除陳随際"
+ "隨"
+ AF_BLUE_STRING_CJK_RIGHT
+ "事前學将將情想或"
+ "政斯新样樣民沒没"
+ "然特现現球第經谁"
+ "起 |"
+ "例別别制动動吗嗎"
+ "增指明朝期构物确"
+ "种調调費费那都間"
+ "间"
+
+#endif /* AF_CONFIG_OPTION_CJK_BLUE_HANI_VERT */
+
+#endif /* AF_CONFIG_OPTION_CJK */
+
+
+// The blue zone stringsets, as used in the script styles, cf. `afstyles.h'.
+//
+// The AF_BLUE_PROPERTY_XXX flags are defined in `afblue.h'; here some
+// explanations.
+//
+// A blue zone in general is defined by a reference and an overshoot line.
+// During the hinting process, all coordinate values between those two lines
+// are set equal to the reference value, provided that the blue zone is not
+// wider than 0.75 pixels (otherwise the blue zone gets ignored). All
+// entries must have `AF_BLUE_STRING_MAX' as the final line.
+//
+// During the glyph analysis, edges are sorted from bottom to top, and then
+// sequentially checked, edge by edge, against the blue zones in the order
+// given below.
+//
+//
+// latin auto-hinter
+// -----------------
+//
+// Characters in a blue string are automatically classified as having a flat
+// (reference) or a round (overshoot) extremum. The blue zone is then set
+// up by the mean values of all flat extrema and all round extrema,
+// respectively. Only horizontal blue zones (i.e., adjusting vertical
+// coordinate values) are supported.
+//
+// For the latin auto-hinter, the overshoot should be larger than the
+// reference for top zones, and vice versa for bottom zones.
+//
+// LATIN_TOP
+// Take the maximum flat and round coordinate values of the blue string
+// characters for computing the blue zone's reference and overshoot
+// values.
+//
+// If not set, take the minimum values.
+//
+// LATIN_NEUTRAL
+// Ignore round extrema and define the blue zone with flat values only.
+// Both top and bottom of contours can match. This is useful for
+// scripts like Devanagari where vowel signs attach to the base
+// character and are implemented as components of composite glyphs.
+//
+// If not set, both round and flat extrema are taken into account.
+// Additionally, only the top or the bottom of a contour can match,
+// depending on the LATIN_TOP flag.
+//
+// Neutral blue zones should always follow non-neutral blue zones.
+//
+// LATIN_X_HEIGHT
+// Scale all glyphs vertically from the corresponding script to make the
+// reference line of this blue zone align on the grid. The scaling
+// takes place before all other blue zones get aligned to the grid.
+// Only one blue character string of a script style can have this flag.
+//
+// LATIN_LONG
+// Apply an additional constraint for blue zone values: Don't
+// necessarily use the extremum as-is but a segment of the topmost (or
+// bottommost) contour that is longer than a heuristic threshold, and
+// which is not too far away vertically from the real extremum. This
+// ensures that small bumps in the outline are ignored (for example, the
+// `vertical serifs' found in many Hebrew glyph designs).
+//
+// The segment must be at least EM/25 font units long, and the distance
+// to the extremum must be smaller than EM/4.
+//
+//
+// cjk auto-hinter
+// ---------------
+//
+// Characters in a blue string are *not* automatically classified. Instead,
+// first come the characters used for the overshoot value, then the
+// character `|', then the characters used for the reference value. The
+// blue zone is then set up by the mean values of all reference values and
+// all overshoot values, respectively. Both horizontal and vertical blue
+// zones (i.e., adjusting vertical and horizontal coordinate values,
+// respectively) are supported.
+//
+// For the cjk auto-hinter, the overshoot should be smaller than the
+// reference for top zones, and vice versa for bottom zones.
+//
+// CJK_TOP
+// Take the maximum flat and round coordinate values of the blue string
+// characters. If not set, take the minimum values.
+//
+// CJK_RIGHT
+// A synonym for CJK_TOP. If CJK_HORIZ is set, this flag indicates the
+// right blue zone, taking horizontal maximum values.
+//
+// CJK_HORIZ
+// Define a blue zone for horizontal hinting (i.e., vertical blue
+// zones). If not set, this is a blue zone for vertical hinting.
+
+
+AF_BLUE_STRINGSET_ENUM AF_BLUE_STRINGSETS_ARRAY AF_BLUE_STRINGSET_MAX_LEN:
+
+ AF_BLUE_STRINGSET_CYRL
+ { AF_BLUE_STRING_CYRILLIC_CAPITAL_TOP, AF_BLUE_PROPERTY_LATIN_TOP }
+ { AF_BLUE_STRING_CYRILLIC_CAPITAL_BOTTOM, 0 }
+ { AF_BLUE_STRING_CYRILLIC_SMALL, AF_BLUE_PROPERTY_LATIN_TOP |
+ AF_BLUE_PROPERTY_LATIN_X_HEIGHT }
+ { AF_BLUE_STRING_CYRILLIC_SMALL, 0 }
+ { AF_BLUE_STRING_CYRILLIC_SMALL_DESCENDER, 0 }
+ { AF_BLUE_STRING_MAX, 0 }
+
+ AF_BLUE_STRINGSET_DEVA
+ { AF_BLUE_STRING_DEVANAGARI_TOP, AF_BLUE_PROPERTY_LATIN_TOP }
+ { AF_BLUE_STRING_DEVANAGARI_HEAD, AF_BLUE_PROPERTY_LATIN_TOP }
+ { AF_BLUE_STRING_DEVANAGARI_BASE, AF_BLUE_PROPERTY_LATIN_TOP |
+ AF_BLUE_PROPERTY_LATIN_NEUTRAL |
+ AF_BLUE_PROPERTY_LATIN_X_HEIGHT }
+ { AF_BLUE_STRING_DEVANAGARI_BASE, 0 }
+ { AF_BLUE_STRING_DEVANAGARI_BOTTOM, 0 }
+ { AF_BLUE_STRING_MAX, 0 }
+
+ AF_BLUE_STRINGSET_GREK
+ { AF_BLUE_STRING_GREEK_CAPITAL_TOP, AF_BLUE_PROPERTY_LATIN_TOP }
+ { AF_BLUE_STRING_GREEK_CAPITAL_BOTTOM, 0 }
+ { AF_BLUE_STRING_GREEK_SMALL_BETA_TOP, AF_BLUE_PROPERTY_LATIN_TOP }
+ { AF_BLUE_STRING_GREEK_SMALL, AF_BLUE_PROPERTY_LATIN_TOP |
+ AF_BLUE_PROPERTY_LATIN_X_HEIGHT }
+ { AF_BLUE_STRING_GREEK_SMALL, 0 }
+ { AF_BLUE_STRING_GREEK_SMALL_DESCENDER, 0 }
+ { AF_BLUE_STRING_MAX, 0 }
+
+ AF_BLUE_STRINGSET_HEBR
+ { AF_BLUE_STRING_HEBREW_TOP, AF_BLUE_PROPERTY_LATIN_TOP |
+ AF_BLUE_PROPERTY_LATIN_LONG }
+ { AF_BLUE_STRING_HEBREW_BOTTOM, 0 }
+ { AF_BLUE_STRING_HEBREW_DESCENDER, 0 }
+ { AF_BLUE_STRING_MAX, 0 }
+
+ AF_BLUE_STRINGSET_LATN
+ { AF_BLUE_STRING_LATIN_CAPITAL_TOP, AF_BLUE_PROPERTY_LATIN_TOP }
+ { AF_BLUE_STRING_LATIN_CAPITAL_BOTTOM, 0 }
+ { AF_BLUE_STRING_LATIN_SMALL_F_TOP, AF_BLUE_PROPERTY_LATIN_TOP }
+ { AF_BLUE_STRING_LATIN_SMALL, AF_BLUE_PROPERTY_LATIN_TOP |
+ AF_BLUE_PROPERTY_LATIN_X_HEIGHT }
+ { AF_BLUE_STRING_LATIN_SMALL, 0 }
+ { AF_BLUE_STRING_LATIN_SMALL_DESCENDER, 0 }
+ { AF_BLUE_STRING_MAX, 0 }
+
+ AF_BLUE_STRINGSET_TELU
+ { AF_BLUE_STRING_TELUGU_TOP, AF_BLUE_PROPERTY_LATIN_TOP }
+ { AF_BLUE_STRING_TELUGU_BOTTOM, 0 }
+ { AF_BLUE_STRING_MAX, 0 }
+
+#ifdef AF_CONFIG_OPTION_CJK
+
+ AF_BLUE_STRINGSET_HANI
+ { AF_BLUE_STRING_CJK_TOP, AF_BLUE_PROPERTY_CJK_TOP }
+ { AF_BLUE_STRING_CJK_BOTTOM, 0 }
+#ifdef AF_CONFIG_OPTION_CJK_BLUE_HANI_VERT
+ { AF_BLUE_STRING_CJK_LEFT, AF_BLUE_PROPERTY_CJK_HORIZ }
+ { AF_BLUE_STRING_CJK_RIGHT, AF_BLUE_PROPERTY_CJK_HORIZ |
+ AF_BLUE_PROPERTY_CJK_RIGHT }
+#endif /* AF_CONFIG_OPTION_CJK_BLUE_HANI_VERT */
+ { AF_BLUE_STRING_MAX, 0 }
+
+#endif /* AF_CONFIG_OPTION_CJK */
+
+
+// END
diff --git a/src/3rdparty/freetype/src/autofit/afblue.h b/src/3rdparty/freetype/src/autofit/afblue.h
new file mode 100644
index 0000000000..a86184191d
--- /dev/null
+++ b/src/3rdparty/freetype/src/autofit/afblue.h
@@ -0,0 +1,203 @@
+/* This file has been generated by the Perl script `afblue.pl', */
+/* using data from file `afblue.dat'. */
+
+/***************************************************************************/
+/* */
+/* afblue.h */
+/* */
+/* Auto-fitter data for blue strings (specification). */
+/* */
+/* Copyright 2013, 2014 by */
+/* David Turner, Robert Wilhelm, and Werner Lemberg. */
+/* */
+/* This file is part of the FreeType project, and may only be used, */
+/* modified, and distributed under the terms of the FreeType project */
+/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
+/* this file you indicate that you have read the license and */
+/* understand and accept it fully. */
+/* */
+/***************************************************************************/
+
+
+#ifndef __AFBLUE_H__
+#define __AFBLUE_H__
+
+
+FT_BEGIN_HEADER
+
+
+ /* an auxiliary macro to decode a UTF-8 character -- since we only use */
+ /* hard-coded, self-converted data, no error checking is performed */
+#define GET_UTF8_CHAR( ch, p ) \
+ ch = (unsigned char)*p++; \
+ if ( ch >= 0x80 ) \
+ { \
+ FT_UInt len; \
+ \
+ \
+ if ( ch < 0xE0 ) \
+ { \
+ len = 1; \
+ ch &= 0x1F; \
+ } \
+ else if ( ch < 0xF0 ) \
+ { \
+ len = 2; \
+ ch &= 0x0F; \
+ } \
+ else \
+ { \
+ len = 3; \
+ ch &= 0x07; \
+ } \
+ \
+ for ( ; len > 0; len-- ) \
+ ch = ( ch << 6 ) | ( *p++ & 0x3F ); \
+ }
+
+
+ /*************************************************************************/
+ /*************************************************************************/
+ /***** *****/
+ /***** B L U E S T R I N G S *****/
+ /***** *****/
+ /*************************************************************************/
+ /*************************************************************************/
+
+ /* At the bottommost level, we define strings for finding blue zones. */
+
+
+#define AF_BLUE_STRING_MAX_LEN 51
+
+ /* The AF_Blue_String enumeration values are offsets into the */
+ /* `af_blue_strings' array. */
+
+ typedef enum AF_Blue_String_
+ {
+ AF_BLUE_STRING_CYRILLIC_CAPITAL_TOP = 0,
+ AF_BLUE_STRING_CYRILLIC_CAPITAL_BOTTOM = 17,
+ AF_BLUE_STRING_CYRILLIC_SMALL = 34,
+ AF_BLUE_STRING_CYRILLIC_SMALL_DESCENDER = 51,
+ AF_BLUE_STRING_DEVANAGARI_BASE = 58,
+ AF_BLUE_STRING_DEVANAGARI_TOP = 83,
+ AF_BLUE_STRING_DEVANAGARI_HEAD = 108,
+ AF_BLUE_STRING_DEVANAGARI_BOTTOM = 133,
+ AF_BLUE_STRING_GREEK_CAPITAL_TOP = 140,
+ AF_BLUE_STRING_GREEK_CAPITAL_BOTTOM = 155,
+ AF_BLUE_STRING_GREEK_SMALL_BETA_TOP = 168,
+ AF_BLUE_STRING_GREEK_SMALL = 181,
+ AF_BLUE_STRING_GREEK_SMALL_DESCENDER = 198,
+ AF_BLUE_STRING_HEBREW_TOP = 215,
+ AF_BLUE_STRING_HEBREW_BOTTOM = 232,
+ AF_BLUE_STRING_HEBREW_DESCENDER = 245,
+ AF_BLUE_STRING_LATIN_CAPITAL_TOP = 256,
+ AF_BLUE_STRING_LATIN_CAPITAL_BOTTOM = 265,
+ AF_BLUE_STRING_LATIN_SMALL_F_TOP = 274,
+ AF_BLUE_STRING_LATIN_SMALL = 282,
+ AF_BLUE_STRING_LATIN_SMALL_DESCENDER = 290,
+ AF_BLUE_STRING_TELUGU_TOP = 296,
+ AF_BLUE_STRING_TELUGU_BOTTOM = 318,
+ af_blue_1_1 = 339,
+#ifdef AF_CONFIG_OPTION_CJK
+ AF_BLUE_STRING_CJK_TOP = af_blue_1_1 + 1,
+ AF_BLUE_STRING_CJK_BOTTOM = af_blue_1_1 + 153,
+ af_blue_1_1_1 = af_blue_1_1 + 304,
+#ifdef AF_CONFIG_OPTION_CJK_BLUE_HANI_VERT
+ AF_BLUE_STRING_CJK_LEFT = af_blue_1_1_1 + 1,
+ AF_BLUE_STRING_CJK_RIGHT = af_blue_1_1_1 + 153,
+ af_blue_1_1_2 = af_blue_1_1_1 + 304,
+#else
+ af_blue_1_1_2 = af_blue_1_1_1 + 0,
+#endif /* AF_CONFIG_OPTION_CJK_BLUE_HANI_VERT */
+ af_blue_1_2 = af_blue_1_1_2 + 0,
+#else
+ af_blue_1_2 = af_blue_1_1 + 0,
+#endif /* AF_CONFIG_OPTION_CJK */
+
+
+ AF_BLUE_STRING_MAX /* do not remove */
+
+ } AF_Blue_String;
+
+
+ FT_LOCAL_ARRAY( char )
+ af_blue_strings[];
+
+
+ /*************************************************************************/
+ /*************************************************************************/
+ /***** *****/
+ /***** B L U E S T R I N G S E T S *****/
+ /***** *****/
+ /*************************************************************************/
+ /*************************************************************************/
+
+ /* The next level is to group blue strings into style-specific sets. */
+
+
+ /* Properties are specific to a writing system. We assume that a given */
+ /* blue string can't be used in more than a single writing system, which */
+ /* is a safe bet. */
+#define AF_BLUE_PROPERTY_LATIN_TOP ( 1 << 0 ) /* must have value 1 */
+#define AF_BLUE_PROPERTY_LATIN_NEUTRAL ( 1 << 1 )
+#define AF_BLUE_PROPERTY_LATIN_X_HEIGHT ( 1 << 2 )
+#define AF_BLUE_PROPERTY_LATIN_LONG ( 1 << 3 )
+
+#define AF_BLUE_PROPERTY_CJK_TOP ( 1 << 0 ) /* must have value 1 */
+#define AF_BLUE_PROPERTY_CJK_HORIZ ( 1 << 1 ) /* must have value 2 */
+#define AF_BLUE_PROPERTY_CJK_RIGHT AF_BLUE_PROPERTY_CJK_TOP
+
+
+#define AF_BLUE_STRINGSET_MAX_LEN 7
+
+ /* The AF_Blue_Stringset enumeration values are offsets into the */
+ /* `af_blue_stringsets' array. */
+
+ typedef enum AF_Blue_Stringset_
+ {
+ AF_BLUE_STRINGSET_CYRL = 0,
+ AF_BLUE_STRINGSET_DEVA = 6,
+ AF_BLUE_STRINGSET_GREK = 12,
+ AF_BLUE_STRINGSET_HEBR = 19,
+ AF_BLUE_STRINGSET_LATN = 23,
+ AF_BLUE_STRINGSET_TELU = 30,
+ af_blue_2_1 = 33,
+#ifdef AF_CONFIG_OPTION_CJK
+ AF_BLUE_STRINGSET_HANI = af_blue_2_1 + 0,
+ af_blue_2_1_1 = af_blue_2_1 + 2,
+#ifdef AF_CONFIG_OPTION_CJK_BLUE_HANI_VERT
+ af_blue_2_1_2 = af_blue_2_1_1 + 2,
+#else
+ af_blue_2_1_2 = af_blue_2_1_1 + 0,
+#endif /* AF_CONFIG_OPTION_CJK_BLUE_HANI_VERT */
+ af_blue_2_2 = af_blue_2_1_2 + 1,
+#else
+ af_blue_2_2 = af_blue_2_1 + 0,
+#endif /* AF_CONFIG_OPTION_CJK */
+
+
+ AF_BLUE_STRINGSET_MAX /* do not remove */
+
+ } AF_Blue_Stringset;
+
+
+ typedef struct AF_Blue_StringRec_
+ {
+ AF_Blue_String string;
+ FT_UShort properties;
+
+ } AF_Blue_StringRec;
+
+
+ FT_LOCAL_ARRAY( AF_Blue_StringRec )
+ af_blue_stringsets[];
+
+/* */
+
+FT_END_HEADER
+
+
+#endif /* __AFBLUE_H__ */
+
+
+/* END */
diff --git a/src/3rdparty/freetype/src/autofit/afblue.hin b/src/3rdparty/freetype/src/autofit/afblue.hin
new file mode 100644
index 0000000000..0b4b48d7fe
--- /dev/null
+++ b/src/3rdparty/freetype/src/autofit/afblue.hin
@@ -0,0 +1,142 @@
+/***************************************************************************/
+/* */
+/* afblue.h */
+/* */
+/* Auto-fitter data for blue strings (specification). */
+/* */
+/* Copyright 2013, 2014 by */
+/* David Turner, Robert Wilhelm, and Werner Lemberg. */
+/* */
+/* This file is part of the FreeType project, and may only be used, */
+/* modified, and distributed under the terms of the FreeType project */
+/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
+/* this file you indicate that you have read the license and */
+/* understand and accept it fully. */
+/* */
+/***************************************************************************/
+
+
+#ifndef __AFBLUE_H__
+#define __AFBLUE_H__
+
+
+FT_BEGIN_HEADER
+
+
+ /* an auxiliary macro to decode a UTF-8 character -- since we only use */
+ /* hard-coded, self-converted data, no error checking is performed */
+#define GET_UTF8_CHAR( ch, p ) \
+ ch = (unsigned char)*p++; \
+ if ( ch >= 0x80 ) \
+ { \
+ FT_UInt len; \
+ \
+ \
+ if ( ch < 0xE0 ) \
+ { \
+ len = 1; \
+ ch &= 0x1F; \
+ } \
+ else if ( ch < 0xF0 ) \
+ { \
+ len = 2; \
+ ch &= 0x0F; \
+ } \
+ else \
+ { \
+ len = 3; \
+ ch &= 0x07; \
+ } \
+ \
+ for ( ; len > 0; len-- ) \
+ ch = ( ch << 6 ) | ( *p++ & 0x3F ); \
+ }
+
+
+ /*************************************************************************/
+ /*************************************************************************/
+ /***** *****/
+ /***** B L U E S T R I N G S *****/
+ /***** *****/
+ /*************************************************************************/
+ /*************************************************************************/
+
+ /* At the bottommost level, we define strings for finding blue zones. */
+
+
+#define AF_BLUE_STRING_MAX_LEN @AF_BLUE_STRING_MAX_LEN@
+
+ /* The AF_Blue_String enumeration values are offsets into the */
+ /* `af_blue_strings' array. */
+
+ typedef enum AF_Blue_String_
+ {
+@AF_BLUE_STRING_ENUM@
+
+ AF_BLUE_STRING_MAX /* do not remove */
+
+ } AF_Blue_String;
+
+
+ FT_LOCAL_ARRAY( char )
+ af_blue_strings[];
+
+
+ /*************************************************************************/
+ /*************************************************************************/
+ /***** *****/
+ /***** B L U E S T R I N G S E T S *****/
+ /***** *****/
+ /*************************************************************************/
+ /*************************************************************************/
+
+ /* The next level is to group blue strings into style-specific sets. */
+
+
+ /* Properties are specific to a writing system. We assume that a given */
+ /* blue string can't be used in more than a single writing system, which */
+ /* is a safe bet. */
+#define AF_BLUE_PROPERTY_LATIN_TOP ( 1 << 0 ) /* must have value 1 */
+#define AF_BLUE_PROPERTY_LATIN_NEUTRAL ( 1 << 1 )
+#define AF_BLUE_PROPERTY_LATIN_X_HEIGHT ( 1 << 2 )
+#define AF_BLUE_PROPERTY_LATIN_LONG ( 1 << 3 )
+
+#define AF_BLUE_PROPERTY_CJK_TOP ( 1 << 0 ) /* must have value 1 */
+#define AF_BLUE_PROPERTY_CJK_HORIZ ( 1 << 1 ) /* must have value 2 */
+#define AF_BLUE_PROPERTY_CJK_RIGHT AF_BLUE_PROPERTY_CJK_TOP
+
+
+#define AF_BLUE_STRINGSET_MAX_LEN @AF_BLUE_STRINGSET_MAX_LEN@
+
+ /* The AF_Blue_Stringset enumeration values are offsets into the */
+ /* `af_blue_stringsets' array. */
+
+ typedef enum AF_Blue_Stringset_
+ {
+@AF_BLUE_STRINGSET_ENUM@
+
+ AF_BLUE_STRINGSET_MAX /* do not remove */
+
+ } AF_Blue_Stringset;
+
+
+ typedef struct AF_Blue_StringRec_
+ {
+ AF_Blue_String string;
+ FT_UShort properties;
+
+ } AF_Blue_StringRec;
+
+
+ FT_LOCAL_ARRAY( AF_Blue_StringRec )
+ af_blue_stringsets[];
+
+/* */
+
+FT_END_HEADER
+
+
+#endif /* __AFBLUE_H__ */
+
+
+/* END */
diff --git a/src/3rdparty/freetype/src/autofit/afcjk.c b/src/3rdparty/freetype/src/autofit/afcjk.c
index bab0c42bad..048e0e7d02 100644
--- a/src/3rdparty/freetype/src/autofit/afcjk.c
+++ b/src/3rdparty/freetype/src/autofit/afcjk.c
@@ -2,9 +2,9 @@
/* */
/* afcjk.c */
/* */
-/* Auto-fitter hinting routines for CJK script (body). */
+/* Auto-fitter hinting routines for CJK writing system (body). */
/* */
-/* Copyright 2006, 2007, 2008, 2009 by */
+/* Copyright 2006-2014 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -22,22 +22,39 @@
*
*/
-#include "aftypes.h"
+#include <ft2build.h>
+#include FT_ADVANCES_H
+#include FT_INTERNAL_DEBUG_H
+
+#include "afglobal.h"
+#include "afpic.h"
#include "aflatin.h"
#ifdef AF_CONFIG_OPTION_CJK
+#undef AF_CONFIG_OPTION_CJK_BLUE_HANI_VERT
+
#include "afcjk.h"
#include "aferrors.h"
-#ifdef AF_USE_WARPER
+#ifdef AF_CONFIG_OPTION_USE_WARPER
#include "afwarp.h"
#endif
/*************************************************************************/
+ /* */
+ /* The macro FT_COMPONENT is used in trace mode. It is an implicit */
+ /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */
+ /* messages during execution. */
+ /* */
+#undef FT_COMPONENT
+#define FT_COMPONENT trace_afcjk
+
+
+ /*************************************************************************/
/*************************************************************************/
/***** *****/
/***** C J K G L O B A L M E T R I C S *****/
@@ -45,59 +62,625 @@
/*************************************************************************/
/*************************************************************************/
+
+ /* Basically the Latin version with AF_CJKMetrics */
+ /* to replace AF_LatinMetrics. */
+
+ FT_LOCAL_DEF( void )
+ af_cjk_metrics_init_widths( AF_CJKMetrics metrics,
+ FT_Face face )
+ {
+ /* scan the array of segments in each direction */
+ AF_GlyphHintsRec hints[1];
+
+
+ FT_TRACE5(( "\n"
+ "cjk standard widths computation (style `%s')\n"
+ "===================================================\n"
+ "\n",
+ af_style_names[metrics->root.style_class->style] ));
+
+ af_glyph_hints_init( hints, face->memory );
+
+ metrics->axis[AF_DIMENSION_HORZ].width_count = 0;
+ metrics->axis[AF_DIMENSION_VERT].width_count = 0;
+
+ {
+ FT_Error error;
+ FT_ULong glyph_index;
+ FT_Long y_offset;
+ int dim;
+ AF_CJKMetricsRec dummy[1];
+ AF_Scaler scaler = &dummy->root.scaler;
+
+#ifdef FT_CONFIG_OPTION_PIC
+ AF_FaceGlobals globals = metrics->root.globals;
+#endif
+
+ AF_StyleClass style_class = metrics->root.style_class;
+ AF_ScriptClass script_class = AF_SCRIPT_CLASSES_GET
+ [style_class->script];
+
+ FT_UInt32 standard_char;
+
+
+ standard_char = script_class->standard_char1;
+ af_get_char_index( &metrics->root,
+ standard_char,
+ &glyph_index,
+ &y_offset );
+ if ( !glyph_index )
+ {
+ if ( script_class->standard_char2 )
+ {
+ standard_char = script_class->standard_char2;
+ af_get_char_index( &metrics->root,
+ standard_char,
+ &glyph_index,
+ &y_offset );
+ if ( !glyph_index )
+ {
+ if ( script_class->standard_char3 )
+ {
+ standard_char = script_class->standard_char3;
+ af_get_char_index( &metrics->root,
+ standard_char,
+ &glyph_index,
+ &y_offset );
+ if ( !glyph_index )
+ goto Exit;
+ }
+ else
+ goto Exit;
+ }
+ }
+ else
+ goto Exit;
+ }
+
+ FT_TRACE5(( "standard character: U+%04lX (glyph index %d)\n",
+ standard_char, glyph_index ));
+
+ error = FT_Load_Glyph( face, glyph_index, FT_LOAD_NO_SCALE );
+ if ( error || face->glyph->outline.n_points <= 0 )
+ goto Exit;
+
+ FT_ZERO( dummy );
+
+ dummy->units_per_em = metrics->units_per_em;
+
+ scaler->x_scale = 0x10000L;
+ scaler->y_scale = 0x10000L;
+ scaler->x_delta = 0;
+ scaler->y_delta = 0;
+
+ scaler->face = face;
+ scaler->render_mode = FT_RENDER_MODE_NORMAL;
+ scaler->flags = 0;
+
+ af_glyph_hints_rescale( hints, (AF_StyleMetrics)dummy );
+
+ error = af_glyph_hints_reload( hints, &face->glyph->outline );
+ if ( error )
+ goto Exit;
+
+ for ( dim = 0; dim < AF_DIMENSION_MAX; dim++ )
+ {
+ AF_CJKAxis axis = &metrics->axis[dim];
+ AF_AxisHints axhints = &hints->axis[dim];
+ AF_Segment seg, limit, link;
+ FT_UInt num_widths = 0;
+
+
+ error = af_latin_hints_compute_segments( hints,
+ (AF_Dimension)dim );
+ if ( error )
+ goto Exit;
+
+ af_latin_hints_link_segments( hints,
+ 0,
+ NULL,
+ (AF_Dimension)dim );
+
+ seg = axhints->segments;
+ limit = seg + axhints->num_segments;
+
+ for ( ; seg < limit; seg++ )
+ {
+ link = seg->link;
+
+ /* we only consider stem segments there! */
+ if ( link && link->link == seg && link > seg )
+ {
+ FT_Pos dist;
+
+
+ dist = seg->pos - link->pos;
+ if ( dist < 0 )
+ dist = -dist;
+
+ if ( num_widths < AF_CJK_MAX_WIDTHS )
+ axis->widths[num_widths++].org = dist;
+ }
+ }
+
+ /* this also replaces multiple almost identical stem widths */
+ /* with a single one (the value 100 is heuristic) */
+ af_sort_and_quantize_widths( &num_widths, axis->widths,
+ dummy->units_per_em / 100 );
+ axis->width_count = num_widths;
+ }
+
+ Exit:
+ for ( dim = 0; dim < AF_DIMENSION_MAX; dim++ )
+ {
+ AF_CJKAxis axis = &metrics->axis[dim];
+ FT_Pos stdw;
+
+
+ stdw = ( axis->width_count > 0 ) ? axis->widths[0].org
+ : AF_LATIN_CONSTANT( metrics, 50 );
+
+ /* let's try 20% of the smallest width */
+ axis->edge_distance_threshold = stdw / 5;
+ axis->standard_width = stdw;
+ axis->extra_light = 0;
+
+#ifdef FT_DEBUG_LEVEL_TRACE
+ {
+ FT_UInt i;
+
+
+ FT_TRACE5(( "%s widths:\n",
+ dim == AF_DIMENSION_VERT ? "horizontal"
+ : "vertical" ));
+
+ FT_TRACE5(( " %d (standard)", axis->standard_width ));
+ for ( i = 1; i < axis->width_count; i++ )
+ FT_TRACE5(( " %d", axis->widths[i].org ));
+
+ FT_TRACE5(( "\n" ));
+ }
+#endif
+ }
+ }
+
+ FT_TRACE5(( "\n" ));
+
+ af_glyph_hints_done( hints );
+ }
+
+
+ /* Find all blue zones. */
+
+ static void
+ af_cjk_metrics_init_blues( AF_CJKMetrics metrics,
+ FT_Face face )
+ {
+ FT_Pos fills[AF_BLUE_STRING_MAX_LEN];
+ FT_Pos flats[AF_BLUE_STRING_MAX_LEN];
+
+ FT_Int num_fills;
+ FT_Int num_flats;
+
+ FT_Bool fill;
+
+ AF_CJKBlue blue;
+ FT_Error error;
+ AF_CJKAxis axis;
+ FT_Outline outline;
+
+ AF_StyleClass sc = metrics->root.style_class;
+
+ AF_Blue_Stringset bss = sc->blue_stringset;
+ const AF_Blue_StringRec* bs = &af_blue_stringsets[bss];
+
+
+ /* we walk over the blue character strings as specified in the */
+ /* style's entry in the `af_blue_stringset' array, computing its */
+ /* extremum points (depending on the string properties) */
+
+ FT_TRACE5(( "cjk blue zones computation\n"
+ "==========================\n"
+ "\n" ));
+
+ for ( ; bs->string != AF_BLUE_STRING_MAX; bs++ )
+ {
+ const char* p = &af_blue_strings[bs->string];
+ FT_Pos* blue_ref;
+ FT_Pos* blue_shoot;
+
+
+ if ( AF_CJK_IS_HORIZ_BLUE( bs ) )
+ axis = &metrics->axis[AF_DIMENSION_HORZ];
+ else
+ axis = &metrics->axis[AF_DIMENSION_VERT];
+
+#ifdef FT_DEBUG_LEVEL_TRACE
+ {
+ FT_String* cjk_blue_name[4] =
+ {
+ (FT_String*)"bottom", /* -- , -- */
+ (FT_String*)"top", /* -- , TOP */
+ (FT_String*)"left", /* HORIZ, -- */
+ (FT_String*)"right" /* HORIZ, TOP */
+ };
+
+
+ FT_TRACE5(( "blue zone %d (%s):\n",
+ axis->blue_count,
+ cjk_blue_name[AF_CJK_IS_HORIZ_BLUE( bs ) |
+ AF_CJK_IS_TOP_BLUE( bs ) ] ));
+ }
+#endif /* FT_DEBUG_LEVEL_TRACE */
+
+ num_fills = 0;
+ num_flats = 0;
+
+ fill = 1; /* start with characters that define fill values */
+ FT_TRACE5(( " [overshoot values]\n" ));
+
+ while ( *p )
+ {
+ FT_ULong ch;
+ FT_ULong glyph_index;
+ FT_Long y_offset;
+ FT_Pos best_pos; /* same as points.y or points.x, resp. */
+ FT_Int best_point;
+ FT_Vector* points;
+
+
+ GET_UTF8_CHAR( ch, p );
+
+ /* switch to characters that define flat values */
+ if ( ch == '|' )
+ {
+ fill = 0;
+ FT_TRACE5(( " [reference values]\n" ));
+ continue;
+ }
+
+ /* load the character in the face -- skip unknown or empty ones */
+ af_get_char_index( &metrics->root, ch, &glyph_index, &y_offset );
+ if ( glyph_index == 0 )
+ {
+ FT_TRACE5(( " U+%04lX unavailable\n", ch ));
+ continue;
+ }
+
+ error = FT_Load_Glyph( face, glyph_index, FT_LOAD_NO_SCALE );
+ outline = face->glyph->outline;
+ if ( error || outline.n_points <= 0 )
+ {
+ FT_TRACE5(( " U+%04lX contains no outlines\n", ch ));
+ continue;
+ }
+
+ /* now compute min or max point indices and coordinates */
+ points = outline.points;
+ best_point = -1;
+ best_pos = 0; /* make compiler happy */
+
+ {
+ FT_Int nn;
+ FT_Int first = 0;
+ FT_Int last = -1;
+
+
+ for ( nn = 0; nn < outline.n_contours; first = last + 1, nn++ )
+ {
+ FT_Int pp;
+
+
+ last = outline.contours[nn];
+
+ /* Avoid single-point contours since they are never rasterized. */
+ /* In some fonts, they correspond to mark attachment points */
+ /* which are way outside of the glyph's real outline. */
+ if ( last <= first )
+ continue;
+
+ if ( AF_CJK_IS_HORIZ_BLUE( bs ) )
+ {
+ if ( AF_CJK_IS_RIGHT_BLUE( bs ) )
+ {
+ for ( pp = first; pp <= last; pp++ )
+ if ( best_point < 0 || points[pp].x > best_pos )
+ {
+ best_point = pp;
+ best_pos = points[pp].x;
+ }
+ }
+ else
+ {
+ for ( pp = first; pp <= last; pp++ )
+ if ( best_point < 0 || points[pp].x < best_pos )
+ {
+ best_point = pp;
+ best_pos = points[pp].x;
+ }
+ }
+ }
+ else
+ {
+ if ( AF_CJK_IS_TOP_BLUE( bs ) )
+ {
+ for ( pp = first; pp <= last; pp++ )
+ if ( best_point < 0 || points[pp].y > best_pos )
+ {
+ best_point = pp;
+ best_pos = points[pp].y;
+ }
+ }
+ else
+ {
+ for ( pp = first; pp <= last; pp++ )
+ if ( best_point < 0 || points[pp].y < best_pos )
+ {
+ best_point = pp;
+ best_pos = points[pp].y;
+ }
+ }
+ }
+ }
+
+ FT_TRACE5(( " U+%04lX: best_pos = %5ld\n", ch, best_pos ));
+ }
+
+ if ( fill )
+ fills[num_fills++] = best_pos;
+ else
+ flats[num_flats++] = best_pos;
+ }
+
+ if ( num_flats == 0 && num_fills == 0 )
+ {
+ /*
+ * we couldn't find a single glyph to compute this blue zone,
+ * we will simply ignore it then
+ */
+ FT_TRACE5(( " empty\n" ));
+ continue;
+ }
+
+ /* we have computed the contents of the `fill' and `flats' tables, */
+ /* now determine the reference and overshoot position of the blue -- */
+ /* we simply take the median value after a simple sort */
+ af_sort_pos( num_fills, fills );
+ af_sort_pos( num_flats, flats );
+
+ blue = &axis->blues[axis->blue_count];
+ blue_ref = &blue->ref.org;
+ blue_shoot = &blue->shoot.org;
+
+ axis->blue_count++;
+
+ if ( num_flats == 0 )
+ {
+ *blue_ref =
+ *blue_shoot = fills[num_fills / 2];
+ }
+ else if ( num_fills == 0 )
+ {
+ *blue_ref =
+ *blue_shoot = flats[num_flats / 2];
+ }
+ else
+ {
+ *blue_ref = fills[num_fills / 2];
+ *blue_shoot = flats[num_flats / 2];
+ }
+
+ /* make sure blue_ref >= blue_shoot for top/right or */
+ /* vice versa for bottom/left */
+ if ( *blue_shoot != *blue_ref )
+ {
+ FT_Pos ref = *blue_ref;
+ FT_Pos shoot = *blue_shoot;
+ FT_Bool under_ref = FT_BOOL( shoot < ref );
+
+
+ /* AF_CJK_IS_TOP_BLUE covers `right' and `top' */
+ if ( AF_CJK_IS_TOP_BLUE( bs ) ^ under_ref )
+ {
+ *blue_ref =
+ *blue_shoot = ( shoot + ref ) / 2;
+
+ FT_TRACE5(( " [reference smaller than overshoot,"
+ " taking mean value]\n" ));
+ }
+ }
+
+ blue->flags = 0;
+ if ( AF_CJK_IS_TOP_BLUE( bs ) )
+ blue->flags |= AF_CJK_BLUE_TOP;
+
+ FT_TRACE5(( " -> reference = %ld\n"
+ " overshoot = %ld\n",
+ *blue_ref, *blue_shoot ));
+ }
+
+ FT_TRACE5(( "\n" ));
+
+ return;
+ }
+
+
+ /* Basically the Latin version with type AF_CJKMetrics for metrics. */
+
+ FT_LOCAL_DEF( void )
+ af_cjk_metrics_check_digits( AF_CJKMetrics metrics,
+ FT_Face face )
+ {
+ FT_UInt i;
+ FT_Bool started = 0, same_width = 1;
+ FT_Fixed advance, old_advance = 0;
+
+
+ /* digit `0' is 0x30 in all supported charmaps */
+ for ( i = 0x30; i <= 0x39; i++ )
+ {
+ FT_ULong glyph_index;
+ FT_Long y_offset;
+
+
+ af_get_char_index( &metrics->root, i, &glyph_index, &y_offset );
+ if ( glyph_index == 0 )
+ continue;
+
+ if ( FT_Get_Advance( face, glyph_index,
+ FT_LOAD_NO_SCALE |
+ FT_LOAD_NO_HINTING |
+ FT_LOAD_IGNORE_TRANSFORM,
+ &advance ) )
+ continue;
+
+ if ( started )
+ {
+ if ( advance != old_advance )
+ {
+ same_width = 0;
+ break;
+ }
+ }
+ else
+ {
+ old_advance = advance;
+ started = 1;
+ }
+ }
+
+ metrics->root.digits_have_same_width = same_width;
+ }
+
+
+ /* Initialize global metrics. */
+
FT_LOCAL_DEF( FT_Error )
- af_cjk_metrics_init( AF_LatinMetrics metrics,
- FT_Face face )
+ af_cjk_metrics_init( AF_CJKMetrics metrics,
+ FT_Face face )
{
FT_CharMap oldmap = face->charmap;
metrics->units_per_em = face->units_per_EM;
- /* TODO are there blues? */
-
- if ( FT_Select_Charmap( face, FT_ENCODING_UNICODE ) )
- face->charmap = NULL;
- else
+ if ( !FT_Select_Charmap( face, FT_ENCODING_UNICODE ) )
{
- /* latin's version would suffice */
- af_latin_metrics_init_widths( metrics, face, 0x7530 );
- af_latin_metrics_check_digits( metrics, face );
+ af_cjk_metrics_init_widths( metrics, face );
+ af_cjk_metrics_init_blues( metrics, face );
+ af_cjk_metrics_check_digits( metrics, face );
}
FT_Set_Charmap( face, oldmap );
-
- return AF_Err_Ok;
+ return FT_Err_Ok;
}
+ /* Adjust scaling value, then scale and shift widths */
+ /* and blue zones (if applicable) for given dimension. */
+
static void
- af_cjk_metrics_scale_dim( AF_LatinMetrics metrics,
- AF_Scaler scaler,
- AF_Dimension dim )
+ af_cjk_metrics_scale_dim( AF_CJKMetrics metrics,
+ AF_Scaler scaler,
+ AF_Dimension dim )
{
- AF_LatinAxis axis;
-
+ FT_Fixed scale;
+ FT_Pos delta;
+ AF_CJKAxis axis;
+ FT_UInt nn;
- axis = &metrics->axis[dim];
if ( dim == AF_DIMENSION_HORZ )
{
- axis->scale = scaler->x_scale;
- axis->delta = scaler->x_delta;
+ scale = scaler->x_scale;
+ delta = scaler->x_delta;
}
else
{
- axis->scale = scaler->y_scale;
- axis->delta = scaler->y_delta;
+ scale = scaler->y_scale;
+ delta = scaler->y_delta;
+ }
+
+ axis = &metrics->axis[dim];
+
+ if ( axis->org_scale == scale && axis->org_delta == delta )
+ return;
+
+ axis->org_scale = scale;
+ axis->org_delta = delta;
+
+ axis->scale = scale;
+ axis->delta = delta;
+
+ /* scale the blue zones */
+ for ( nn = 0; nn < axis->blue_count; nn++ )
+ {
+ AF_CJKBlue blue = &axis->blues[nn];
+ FT_Pos dist;
+
+
+ blue->ref.cur = FT_MulFix( blue->ref.org, scale ) + delta;
+ blue->ref.fit = blue->ref.cur;
+ blue->shoot.cur = FT_MulFix( blue->shoot.org, scale ) + delta;
+ blue->shoot.fit = blue->shoot.cur;
+ blue->flags &= ~AF_CJK_BLUE_ACTIVE;
+
+ /* a blue zone is only active if it is less than 3/4 pixels tall */
+ dist = FT_MulFix( blue->ref.org - blue->shoot.org, scale );
+ if ( dist <= 48 && dist >= -48 )
+ {
+ FT_Pos delta1, delta2;
+
+
+ blue->ref.fit = FT_PIX_ROUND( blue->ref.cur );
+
+ /* shoot is under shoot for cjk */
+ delta1 = FT_DivFix( blue->ref.fit, scale ) - blue->shoot.org;
+ delta2 = delta1;
+ if ( delta1 < 0 )
+ delta2 = -delta2;
+
+ delta2 = FT_MulFix( delta2, scale );
+
+ FT_TRACE5(( "delta: %d", delta1 ));
+ if ( delta2 < 32 )
+ delta2 = 0;
+#if 0
+ else if ( delta2 < 64 )
+ delta2 = 32 + ( ( ( delta2 - 32 ) + 16 ) & ~31 );
+#endif
+ else
+ delta2 = FT_PIX_ROUND( delta2 );
+ FT_TRACE5(( "/%d\n", delta2 ));
+
+ if ( delta1 < 0 )
+ delta2 = -delta2;
+
+ blue->shoot.fit = blue->ref.fit - delta2;
+
+ FT_TRACE5(( ">> active cjk blue zone %c%d[%ld/%ld]:\n"
+ " ref: cur=%.2f fit=%.2f\n"
+ " shoot: cur=%.2f fit=%.2f\n",
+ ( dim == AF_DIMENSION_HORZ ) ? 'H' : 'V',
+ nn, blue->ref.org, blue->shoot.org,
+ blue->ref.cur / 64.0, blue->ref.fit / 64.0,
+ blue->shoot.cur / 64.0, blue->shoot.fit / 64.0 ));
+
+ blue->flags |= AF_CJK_BLUE_ACTIVE;
+ }
}
}
+ /* Scale global values in both directions. */
+
FT_LOCAL_DEF( void )
- af_cjk_metrics_scale( AF_LatinMetrics metrics,
- AF_Scaler scaler )
+ af_cjk_metrics_scale( AF_CJKMetrics metrics,
+ AF_Scaler scaler )
{
+ /* we copy the whole structure since the x and y scaling values */
+ /* are not modified, contrary to e.g. the `latin' auto-hinter */
metrics->root.scaler = *scaler;
af_cjk_metrics_scale_dim( metrics, scaler, AF_DIMENSION_HORZ );
@@ -113,6 +696,9 @@
/*************************************************************************/
/*************************************************************************/
+
+ /* Walk over all contours and compute its segments. */
+
static FT_Error
af_cjk_hints_compute_segments( AF_GlyphHints hints,
AF_Dimension dim )
@@ -134,7 +720,7 @@
{
AF_Point pt = seg->first;
AF_Point last = seg->last;
- AF_Flags f0 = (AF_Flags)(pt->flags & AF_FLAG_CONTROL);
+ AF_Flags f0 = (AF_Flags)( pt->flags & AF_FLAG_CONTROL );
AF_Flags f1;
@@ -143,7 +729,7 @@
for ( ; pt != last; f0 = f1 )
{
pt = pt->next;
- f1 = (AF_Flags)(pt->flags & AF_FLAG_CONTROL);
+ f1 = (AF_Flags)( pt->flags & AF_FLAG_CONTROL );
if ( !f0 && !f1 )
break;
@@ -153,7 +739,7 @@
}
}
- return AF_Err_Ok;
+ return FT_Err_Ok;
}
@@ -179,10 +765,6 @@
/* now compare each segment to the others */
for ( seg1 = segments; seg1 < segment_limit; seg1++ )
{
- /* the fake segments are for metrics hinting only */
- if ( seg1->first == seg1->last )
- continue;
-
if ( seg1->dir != major_dir )
continue;
@@ -327,9 +909,9 @@
AF_Dimension dim )
{
AF_AxisHints axis = &hints->axis[dim];
- FT_Error error = AF_Err_Ok;
+ FT_Error error = FT_Err_Ok;
FT_Memory memory = hints->memory;
- AF_LatinAxis laxis = &((AF_LatinMetrics)hints->metrics)->axis[dim];
+ AF_CJKAxis laxis = &((AF_CJKMetrics)hints->metrics)->axis[dim];
AF_Segment segments = axis->segments;
AF_Segment segment_limit = segments + axis->num_segments;
@@ -369,7 +951,7 @@
for ( seg = segments; seg < segment_limit; seg++ )
{
- AF_Edge found = 0;
+ AF_Edge found = NULL;
FT_Pos best = 0xFFFFU;
FT_Int ee;
@@ -397,14 +979,15 @@
/* can make a single edge. */
if ( link )
{
- AF_Segment seg1 = edge->first;
- AF_Segment link1;
+ AF_Segment seg1 = edge->first;
FT_Pos dist2 = 0;
do
{
- link1 = seg1->link;
+ AF_Segment link1 = seg1->link;
+
+
if ( link1 )
{
dist2 = AF_SEGMENT_DIST( link, link1 );
@@ -441,10 +1024,11 @@
edge->first = seg;
edge->last = seg;
+ edge->dir = seg->dir;
edge->fpos = seg->pos;
- edge->opos = edge->pos = FT_MulFix( seg->pos, scale );
+ edge->opos = FT_MulFix( seg->pos, scale );
+ edge->pos = edge->opos;
seg->edge_next = seg;
- edge->dir = seg->dir;
}
else
{
@@ -456,25 +1040,26 @@
}
}
- /*********************************************************************/
- /* */
- /* Good, we now compute each edge's properties according to segments */
- /* found on its position. Basically, these are as follows. */
- /* */
- /* - edge's main direction */
- /* - stem edge, serif edge or both (which defaults to stem then) */
- /* - rounded edge, straight or both (which defaults to straight) */
- /* - link for edge */
- /* */
- /*********************************************************************/
-
- /* first of all, set the `edge' field in each segment -- this is */
- /* required in order to compute edge links */
- /* */
- /* Note that removing this loop and setting the `edge' field of each */
- /* segment directly in the code above slows down execution speed for */
- /* some reasons on platforms like the Sun. */
+ /******************************************************************/
+ /* */
+ /* Good, we now compute each edge's properties according to the */
+ /* segments found on its position. Basically, these are */
+ /* */
+ /* - the edge's main direction */
+ /* - stem edge, serif edge or both (which defaults to stem then) */
+ /* - rounded edge, straight or both (which defaults to straight) */
+ /* - link for edge */
+ /* */
+ /******************************************************************/
+
+ /* first of all, set the `edge' field in each segment -- this is */
+ /* required in order to compute edge links */
+ /*
+ * Note that removing this loop and setting the `edge' field of each
+ * segment directly in the code above slows down execution speed for
+ * some reasons on platforms like the Sun.
+ */
{
AF_Edge edges = axis->edges;
AF_Edge edge_limit = edges + axis->num_edges;
@@ -583,6 +1168,8 @@
}
+ /* Detect segments and edges for given dimension. */
+
static FT_Error
af_cjk_hints_detect_features( AF_GlyphHints hints,
AF_Dimension dim )
@@ -601,15 +1188,106 @@
}
+ /* Compute all edges which lie within blue zones. */
+
+ FT_LOCAL_DEF( void )
+ af_cjk_hints_compute_blue_edges( AF_GlyphHints hints,
+ AF_CJKMetrics metrics,
+ AF_Dimension dim )
+ {
+ AF_AxisHints axis = &hints->axis[dim];
+ AF_Edge edge = axis->edges;
+ AF_Edge edge_limit = edge + axis->num_edges;
+ AF_CJKAxis cjk = &metrics->axis[dim];
+ FT_Fixed scale = cjk->scale;
+ FT_Pos best_dist0; /* initial threshold */
+
+
+ /* compute the initial threshold as a fraction of the EM size */
+ best_dist0 = FT_MulFix( metrics->units_per_em / 40, scale );
+
+ if ( best_dist0 > 64 / 2 ) /* maximum 1/2 pixel */
+ best_dist0 = 64 / 2;
+
+ /* compute which blue zones are active, i.e. have their scaled */
+ /* size < 3/4 pixels */
+
+ /* If the distant between an edge and a blue zone is shorter than */
+ /* best_dist0, set the blue zone for the edge. Then search for */
+ /* the blue zone with the smallest best_dist to the edge. */
+
+ for ( ; edge < edge_limit; edge++ )
+ {
+ FT_UInt bb;
+ AF_Width best_blue = NULL;
+ FT_Pos best_dist = best_dist0;
+
+
+ for ( bb = 0; bb < cjk->blue_count; bb++ )
+ {
+ AF_CJKBlue blue = cjk->blues + bb;
+ FT_Bool is_top_right_blue, is_major_dir;
+
+
+ /* skip inactive blue zones (i.e., those that are too small) */
+ if ( !( blue->flags & AF_CJK_BLUE_ACTIVE ) )
+ continue;
+
+ /* if it is a top zone, check for right edges -- if it is a bottom */
+ /* zone, check for left edges */
+ /* */
+ /* of course, that's for TrueType */
+ is_top_right_blue =
+ (FT_Byte)( ( blue->flags & AF_CJK_BLUE_TOP ) != 0 );
+ is_major_dir =
+ FT_BOOL( edge->dir == axis->major_dir );
+
+ /* if it is a top zone, the edge must be against the major */
+ /* direction; if it is a bottom zone, it must be in the major */
+ /* direction */
+ if ( is_top_right_blue ^ is_major_dir )
+ {
+ FT_Pos dist;
+ AF_Width compare;
+
+
+ /* Compare the edge to the closest blue zone type */
+ if ( FT_ABS( edge->fpos - blue->ref.org ) >
+ FT_ABS( edge->fpos - blue->shoot.org ) )
+ compare = &blue->shoot;
+ else
+ compare = &blue->ref;
+
+ dist = edge->fpos - compare->org;
+ if ( dist < 0 )
+ dist = -dist;
+
+ dist = FT_MulFix( dist, scale );
+ if ( dist < best_dist )
+ {
+ best_dist = dist;
+ best_blue = compare;
+ }
+ }
+ }
+
+ if ( best_blue )
+ edge->blue_edge = best_blue;
+ }
+ }
+
+
+ /* Initalize hinting engine. */
+
FT_LOCAL_DEF( FT_Error )
- af_cjk_hints_init( AF_GlyphHints hints,
- AF_LatinMetrics metrics )
+ af_cjk_hints_init( AF_GlyphHints hints,
+ AF_CJKMetrics metrics )
{
FT_Render_Mode mode;
FT_UInt32 scaler_flags, other_flags;
- af_glyph_hints_rescale( hints, (AF_ScriptMetrics)metrics );
+ af_glyph_hints_rescale( hints, (AF_StyleMetrics)metrics );
/*
* correct x_scale and y_scale when needed, since they may have
@@ -623,7 +1301,7 @@
/* compute flags depending on render mode, etc. */
mode = metrics->root.scaler.render_mode;
-#ifdef AF_USE_WARPER
+#ifdef AF_CONFIG_OPTION_USE_WARPER
if ( mode == FT_RENDER_MODE_LCD || mode == FT_RENDER_MODE_LCD_V )
metrics->root.scaler.render_mode = mode = FT_RENDER_MODE_NORMAL;
#endif
@@ -659,7 +1337,7 @@
hints->scaler_flags = scaler_flags;
hints->other_flags = other_flags;
- return 0;
+ return FT_Err_Ok;
}
@@ -671,8 +1349,8 @@
/*************************************************************************/
/*************************************************************************/
- /* snap a given width in scaled coordinates to one of the */
- /* current standard widths */
+ /* Snap a given width in scaled coordinates to one of the */
+ /* current standard widths. */
static FT_Pos
af_cjk_snap_width( AF_Width widths,
@@ -719,7 +1397,9 @@
}
- /* compute the snapped width of a given stem */
+ /* Compute the snapped width of a given stem. */
+ /* There is a lot of voodoo in this function; changing the hard-coded */
+ /* parameters influence the whole hinting process. */
static FT_Pos
af_cjk_compute_stem_width( AF_GlyphHints hints,
@@ -728,11 +1408,11 @@
AF_Edge_Flags base_flags,
AF_Edge_Flags stem_flags )
{
- AF_LatinMetrics metrics = (AF_LatinMetrics) hints->metrics;
- AF_LatinAxis axis = & metrics->axis[dim];
- FT_Pos dist = width;
- FT_Int sign = 0;
- FT_Int vertical = ( dim == AF_DIMENSION_VERT );
+ AF_CJKMetrics metrics = (AF_CJKMetrics)hints->metrics;
+ AF_CJKAxis axis = &metrics->axis[dim];
+ FT_Pos dist = width;
+ FT_Int sign = 0;
+ FT_Bool vertical = FT_BOOL( dim == AF_DIMENSION_VERT );
FT_UNUSED( base_flags );
FT_UNUSED( stem_flags );
@@ -840,7 +1520,7 @@
}
- /* align one stem edge relative to the previous stem edge */
+ /* Align one stem edge relative to the previous stem edge. */
static void
af_cjk_align_linked_edge( AF_GlyphHints hints,
@@ -857,9 +1537,18 @@
stem_edge->pos = base_edge->pos + fitted_width;
+
+ FT_TRACE5(( " CJKLINK: edge %d @%d (opos=%.2f) linked to %.2f,"
+ " dist was %.2f, now %.2f\n",
+ stem_edge - hints->axis[dim].edges, stem_edge->fpos,
+ stem_edge->opos / 64.0, stem_edge->pos / 64.0,
+ dist / 64.0, fitted_width / 64.0 ));
}
+ /* Shift the coordinates of the `serif' edge by the same amount */
+ /* as the corresponding `base' edge has been moved already. */
+
static void
af_cjk_align_serif_edge( AF_GlyphHints hints,
AF_Edge base,
@@ -958,7 +1647,7 @@
goto Exit;
}
- offset = cur_len % 64;
+ offset = cur_len & 63;
if ( offset < 32 )
{
@@ -1013,6 +1702,8 @@
}
+ /* The main grid-fitting routine. */
+
static void
af_cjk_hint_edges( AF_GlyphHints hints,
AF_Dimension dim )
@@ -1025,7 +1716,75 @@
AF_Edge anchor = 0;
FT_Pos delta = 0;
FT_Int skipped = 0;
+ FT_Bool has_last_stem = FALSE;
+ FT_Pos last_stem_pos = 0;
+
+#ifdef FT_DEBUG_LEVEL_TRACE
+ FT_UInt num_actions = 0;
+#endif
+
+
+ FT_TRACE5(( "cjk %s edge hinting (style `%s')\n",
+ dim == AF_DIMENSION_VERT ? "horizontal" : "vertical",
+ af_style_names[hints->metrics->style_class->style] ));
+
+ /* we begin by aligning all stems relative to the blue zone */
+
+ if ( AF_HINTS_DO_BLUES( hints ) )
+ {
+ for ( edge = edges; edge < edge_limit; edge++ )
+ {
+ AF_Width blue;
+ AF_Edge edge1, edge2;
+
+
+ if ( edge->flags & AF_EDGE_DONE )
+ continue;
+
+ blue = edge->blue_edge;
+ edge1 = NULL;
+ edge2 = edge->link;
+
+ if ( blue )
+ {
+ edge1 = edge;
+ }
+ else if ( edge2 && edge2->blue_edge )
+ {
+ blue = edge2->blue_edge;
+ edge1 = edge2;
+ edge2 = edge;
+ }
+
+ if ( !edge1 )
+ continue;
+
+#ifdef FT_DEBUG_LEVEL_TRACE
+ FT_TRACE5(( " CJKBLUE: edge %d @%d (opos=%.2f) snapped to %.2f,"
+ " was %.2f\n",
+ edge1 - edges, edge1->fpos, edge1->opos / 64.0,
+ blue->fit / 64.0, edge1->pos / 64.0 ));
+
+ num_actions++;
+#endif
+
+ edge1->pos = blue->fit;
+ edge1->flags |= AF_EDGE_DONE;
+
+ if ( edge2 && !edge2->blue_edge )
+ {
+ af_cjk_align_linked_edge( hints, dim, edge1, edge2 );
+ edge2->flags |= AF_EDGE_DONE;
+
+#ifdef FT_DEBUG_LEVEL_TRACE
+ num_actions++;
+#endif
+ }
+ if ( !anchor )
+ anchor = edge;
+ }
+ }
/* now we align all stem edges. */
for ( edge = edges; edge < edge_limit; edge++ )
@@ -1044,12 +1803,54 @@
continue;
}
+ /* Some CJK characters have so many stems that
+ * the hinter is likely to merge two adjacent ones.
+ * To solve this problem, if either edge of a stem
+ * is too close to the previous one, we avoid
+ * aligning the two edges, but rather interpolate
+ * their locations at the end of this function in
+ * order to preserve the space between the stems.
+ */
+ if ( has_last_stem &&
+ ( edge->pos < last_stem_pos + 64 ||
+ edge2->pos < last_stem_pos + 64 ) )
+ {
+ skipped++;
+ continue;
+ }
+
/* now align the stem */
+ /* this should not happen, but it's better to be safe */
+ if ( edge2->blue_edge )
+ {
+ FT_TRACE5(( "ASSERTION FAILED for edge %d\n", edge2-edges ));
+
+ af_cjk_align_linked_edge( hints, dim, edge2, edge );
+ edge->flags |= AF_EDGE_DONE;
+
+#ifdef FT_DEBUG_LEVEL_TRACE
+ num_actions++;
+#endif
+
+ continue;
+ }
+
if ( edge2 < edge )
{
af_cjk_align_linked_edge( hints, dim, edge2, edge );
edge->flags |= AF_EDGE_DONE;
+
+#ifdef FT_DEBUG_LEVEL_TRACE
+ num_actions++;
+#endif
+
+ /* We rarely reaches here it seems;
+ * usually the two edges belonging
+ * to one stem are marked as DONE together
+ */
+ has_last_stem = TRUE;
+ last_stem_pos = edge->pos;
continue;
}
@@ -1142,6 +1943,8 @@
anchor = edge;
edge->flags |= AF_EDGE_DONE;
edge2->flags |= AF_EDGE_DONE;
+ has_last_stem = TRUE;
+ last_stem_pos = edge2->pos;
}
/* make sure that lowercase m's maintain their symmetry */
@@ -1209,7 +2012,7 @@
}
if ( !skipped )
- return;
+ goto Exit;
/*
* now hint the remaining edges (serifs and single) in order
@@ -1229,7 +2032,7 @@
}
if ( !skipped )
- return;
+ goto Exit;
for ( edge = edges; edge < edge_limit; edge++ )
{
@@ -1267,6 +2070,16 @@
}
}
}
+
+ Exit:
+
+#ifdef FT_DEBUG_LEVEL_TRACE
+ if ( !num_actions )
+ FT_TRACE5(( " (none)\n" ));
+ FT_TRACE5(( "\n" ));
+#endif
+
+ return;
}
@@ -1360,10 +2173,12 @@
}
+ /* Apply the complete hinting algorithm to a CJK glyph. */
+
FT_LOCAL_DEF( FT_Error )
- af_cjk_hints_apply( AF_GlyphHints hints,
- FT_Outline* outline,
- AF_LatinMetrics metrics )
+ af_cjk_hints_apply( AF_GlyphHints hints,
+ FT_Outline* outline,
+ AF_CJKMetrics metrics )
{
FT_Error error;
int dim;
@@ -1371,7 +2186,7 @@
FT_UNUSED( metrics );
- error = af_glyph_hints_reload( hints, outline, 0 );
+ error = af_glyph_hints_reload( hints, outline );
if ( error )
goto Exit;
@@ -1381,6 +2196,8 @@
error = af_cjk_hints_detect_features( hints, AF_DIMENSION_HORZ );
if ( error )
goto Exit;
+
+ af_cjk_hints_compute_blue_edges( hints, metrics, AF_DIMENSION_HORZ );
}
if ( AF_HINTS_DO_VERTICAL( hints ) )
@@ -1388,6 +2205,8 @@
error = af_cjk_hints_detect_features( hints, AF_DIMENSION_VERT );
if ( error )
goto Exit;
+
+ af_cjk_hints_compute_blue_edges( hints, metrics, AF_DIMENSION_VERT );
}
/* grid-fit the outline */
@@ -1397,7 +2216,7 @@
( dim == AF_DIMENSION_VERT && AF_HINTS_DO_VERTICAL( hints ) ) )
{
-#ifdef AF_USE_WARPER
+#ifdef AF_CONFIG_OPTION_USE_WARPER
if ( dim == AF_DIMENSION_HORZ &&
metrics->root.scaler.render_mode == FT_RENDER_MODE_NORMAL )
{
@@ -1406,11 +2225,13 @@
FT_Pos delta;
- af_warper_compute( &warper, hints, dim, &scale, &delta );
- af_glyph_hints_scale_dim( hints, dim, scale, delta );
+ af_warper_compute( &warper, hints, (AF_Dimension)dim,
+ &scale, &delta );
+ af_glyph_hints_scale_dim( hints, (AF_Dimension)dim,
+ scale, delta );
continue;
}
-#endif /* AF_USE_WARPER */
+#endif /* AF_CONFIG_OPTION_USE_WARPER */
af_cjk_hint_edges( hints, (AF_Dimension)dim );
af_cjk_align_edge_points( hints, (AF_Dimension)dim );
@@ -1441,71 +2262,41 @@
/*************************************************************************/
- static const AF_Script_UniRangeRec af_cjk_uniranges[] =
- {
-#if 0
- AF_UNIRANGE_REC( 0x0100UL, 0xFFFFUL ), /* why this? */
-#endif
- AF_UNIRANGE_REC( 0x2E80UL, 0x2EFFUL ), /* CJK Radicals Supplement */
- AF_UNIRANGE_REC( 0x2F00UL, 0x2FDFUL ), /* Kangxi Radicals */
- AF_UNIRANGE_REC( 0x3000UL, 0x303FUL ), /* CJK Symbols and Punctuation */
- AF_UNIRANGE_REC( 0x3040UL, 0x309FUL ), /* Hiragana */
- AF_UNIRANGE_REC( 0x30A0UL, 0x30FFUL ), /* Katakana */
- AF_UNIRANGE_REC( 0x3100UL, 0x312FUL ), /* Bopomofo */
- AF_UNIRANGE_REC( 0x3130UL, 0x318FUL ), /* Hangul Compatibility Jamo */
- AF_UNIRANGE_REC( 0x31A0UL, 0x31BFUL ), /* Bopomofo Extended */
- AF_UNIRANGE_REC( 0x31C0UL, 0x31EFUL ), /* CJK Strokes */
- AF_UNIRANGE_REC( 0x31F0UL, 0x31FFUL ), /* Katakana Phonetic Extensions */
- AF_UNIRANGE_REC( 0x3200UL, 0x32FFUL ), /* Enclosed CJK Letters and Months */
- AF_UNIRANGE_REC( 0x3300UL, 0x33FFUL ), /* CJK Compatibility */
- AF_UNIRANGE_REC( 0x3400UL, 0x4DBFUL ), /* CJK Unified Ideographs Extension A */
- AF_UNIRANGE_REC( 0x4DC0UL, 0x4DFFUL ), /* Yijing Hexagram Symbols */
- AF_UNIRANGE_REC( 0x4E00UL, 0x9FFFUL ), /* CJK Unified Ideographs */
- AF_UNIRANGE_REC( 0xF900UL, 0xFAFFUL ), /* CJK Compatibility Ideographs */
- AF_UNIRANGE_REC( 0xFE30UL, 0xFE4FUL ), /* CJK Compatibility Forms */
- AF_UNIRANGE_REC( 0xFF00UL, 0xFFEFUL ), /* Halfwidth and Fullwidth Forms */
- AF_UNIRANGE_REC( 0x20000UL, 0x2A6DFUL ), /* CJK Unified Ideographs Extension B */
- AF_UNIRANGE_REC( 0x2F800UL, 0x2FA1FUL ), /* CJK Compatibility Ideographs Supplement */
- AF_UNIRANGE_REC( 0UL, 0UL )
- };
-
-
- AF_DEFINE_SCRIPT_CLASS(af_cjk_script_class,
- AF_SCRIPT_CJK,
- af_cjk_uniranges,
-
- sizeof( AF_LatinMetricsRec ),
-
- (AF_Script_InitMetricsFunc) af_cjk_metrics_init,
- (AF_Script_ScaleMetricsFunc)af_cjk_metrics_scale,
- (AF_Script_DoneMetricsFunc) NULL,
-
- (AF_Script_InitHintsFunc) af_cjk_hints_init,
- (AF_Script_ApplyHintsFunc) af_cjk_hints_apply
+ AF_DEFINE_WRITING_SYSTEM_CLASS(
+ af_cjk_writing_system_class,
+
+ AF_WRITING_SYSTEM_CJK,
+
+ sizeof ( AF_CJKMetricsRec ),
+
+ (AF_WritingSystem_InitMetricsFunc) af_cjk_metrics_init,
+ (AF_WritingSystem_ScaleMetricsFunc)af_cjk_metrics_scale,
+ (AF_WritingSystem_DoneMetricsFunc) NULL,
+
+ (AF_WritingSystem_InitHintsFunc) af_cjk_hints_init,
+ (AF_WritingSystem_ApplyHintsFunc) af_cjk_hints_apply
)
+
#else /* !AF_CONFIG_OPTION_CJK */
- static const AF_Script_UniRangeRec af_cjk_uniranges[] =
- {
- AF_UNIRANGE_REC( 0UL, 0UL )
- };
+ AF_DEFINE_WRITING_SYSTEM_CLASS(
+ af_cjk_writing_system_class,
- AF_DEFINE_SCRIPT_CLASS(af_cjk_script_class,
- AF_SCRIPT_CJK,
- af_cjk_uniranges,
+ AF_WRITING_SYSTEM_CJK,
- sizeof( AF_LatinMetricsRec ),
+ sizeof ( AF_CJKMetricsRec ),
- (AF_Script_InitMetricsFunc) NULL,
- (AF_Script_ScaleMetricsFunc)NULL,
- (AF_Script_DoneMetricsFunc) NULL,
+ (AF_WritingSystem_InitMetricsFunc) NULL,
+ (AF_WritingSystem_ScaleMetricsFunc)NULL,
+ (AF_WritingSystem_DoneMetricsFunc) NULL,
- (AF_Script_InitHintsFunc) NULL,
- (AF_Script_ApplyHintsFunc) NULL
+ (AF_WritingSystem_InitHintsFunc) NULL,
+ (AF_WritingSystem_ApplyHintsFunc) NULL
)
+
#endif /* !AF_CONFIG_OPTION_CJK */
diff --git a/src/3rdparty/freetype/src/autofit/afcjk.h b/src/3rdparty/freetype/src/autofit/afcjk.h
index 0b20d4ae35..4dd4f39177 100644
--- a/src/3rdparty/freetype/src/autofit/afcjk.h
+++ b/src/3rdparty/freetype/src/autofit/afcjk.h
@@ -2,9 +2,9 @@
/* */
/* afcjk.h */
/* */
-/* Auto-fitter hinting routines for CJK script (specification). */
+/* Auto-fitter hinting routines for CJK writing system (specification). */
/* */
-/* Copyright 2006, 2007 by */
+/* Copyright 2006, 2007, 2011-2014 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -20,32 +20,119 @@
#define __AFCJK_H__
#include "afhints.h"
+#include "aflatin.h"
FT_BEGIN_HEADER
- /* the CJK-specific script class */
+ /* the CJK-specific writing system */
- AF_DECLARE_SCRIPT_CLASS(af_cjk_script_class)
+ AF_DECLARE_WRITING_SYSTEM_CLASS( af_cjk_writing_system_class )
+ /*************************************************************************/
+ /*************************************************************************/
+ /***** *****/
+ /***** C J K G L O B A L M E T R I C S *****/
+ /***** *****/
+ /*************************************************************************/
+ /*************************************************************************/
+
+
+ /*
+ * CJK glyphs tend to fill the square. So we have both vertical and
+ * horizontal blue zones. But some glyphs have flat bounding strokes that
+ * leave some space between neighbour glyphs.
+ */
+
+#define AF_CJK_IS_TOP_BLUE( b ) \
+ ( (b)->properties & AF_BLUE_PROPERTY_CJK_TOP )
+#define AF_CJK_IS_HORIZ_BLUE( b ) \
+ ( (b)->properties & AF_BLUE_PROPERTY_CJK_HORIZ )
+#define AF_CJK_IS_RIGHT_BLUE AF_CJK_IS_TOP_BLUE
+
+#define AF_CJK_MAX_WIDTHS 16
+
+
+ enum
+ {
+ AF_CJK_BLUE_ACTIVE = 1 << 0, /* set if zone height is <= 3/4px */
+ AF_CJK_BLUE_TOP = 1 << 1, /* result of AF_CJK_IS_TOP_BLUE */
+ AF_CJK_BLUE_ADJUSTMENT = 1 << 2, /* used for scale adjustment */
+ /* optimization */
+ AF_CJK_BLUE_FLAG_MAX
+ };
+
+
+ typedef struct AF_CJKBlueRec_
+ {
+ AF_WidthRec ref;
+ AF_WidthRec shoot; /* undershoot */
+ FT_UInt flags;
+
+ } AF_CJKBlueRec, *AF_CJKBlue;
+
+
+ typedef struct AF_CJKAxisRec_
+ {
+ FT_Fixed scale;
+ FT_Pos delta;
+
+ FT_UInt width_count; /* number of used widths */
+ AF_WidthRec widths[AF_CJK_MAX_WIDTHS]; /* widths array */
+ FT_Pos edge_distance_threshold; /* used for creating edges */
+ FT_Pos standard_width; /* the default stem thickness */
+ FT_Bool extra_light; /* is standard width very light? */
+
+ /* used for horizontal metrics too for CJK */
+ FT_Bool control_overshoot;
+ FT_UInt blue_count;
+ AF_CJKBlueRec blues[AF_BLUE_STRINGSET_MAX];
+
+ FT_Fixed org_scale;
+ FT_Pos org_delta;
+
+ } AF_CJKAxisRec, *AF_CJKAxis;
+
+
+ typedef struct AF_CJKMetricsRec_
+ {
+ AF_StyleMetricsRec root;
+ FT_UInt units_per_em;
+ AF_CJKAxisRec axis[AF_DIMENSION_MAX];
+
+ } AF_CJKMetricsRec, *AF_CJKMetrics;
+
+
+#ifdef AF_CONFIG_OPTION_CJK
FT_LOCAL( FT_Error )
- af_cjk_metrics_init( AF_LatinMetrics metrics,
- FT_Face face );
+ af_cjk_metrics_init( AF_CJKMetrics metrics,
+ FT_Face face );
FT_LOCAL( void )
- af_cjk_metrics_scale( AF_LatinMetrics metrics,
- AF_Scaler scaler );
+ af_cjk_metrics_scale( AF_CJKMetrics metrics,
+ AF_Scaler scaler );
FT_LOCAL( FT_Error )
- af_cjk_hints_init( AF_GlyphHints hints,
- AF_LatinMetrics metrics );
+ af_cjk_hints_init( AF_GlyphHints hints,
+ AF_CJKMetrics metrics );
FT_LOCAL( FT_Error )
- af_cjk_hints_apply( AF_GlyphHints hints,
- FT_Outline* outline,
- AF_LatinMetrics metrics );
+ af_cjk_hints_apply( AF_GlyphHints hints,
+ FT_Outline* outline,
+ AF_CJKMetrics metrics );
+
+ /* shared; called from afindic.c */
+ FT_LOCAL( void )
+ af_cjk_metrics_check_digits( AF_CJKMetrics metrics,
+ FT_Face face );
+
+ FT_LOCAL( void )
+ af_cjk_metrics_init_widths( AF_CJKMetrics metrics,
+ FT_Face face );
+#endif /* AF_CONFIG_OPTION_CJK */
+
/* */
diff --git a/src/3rdparty/freetype/src/autofit/afcover.h b/src/3rdparty/freetype/src/autofit/afcover.h
new file mode 100644
index 0000000000..d5ac96944a
--- /dev/null
+++ b/src/3rdparty/freetype/src/autofit/afcover.h
@@ -0,0 +1,105 @@
+/***************************************************************************/
+/* */
+/* afcover.h */
+/* */
+/* Auto-fitter coverages (specification only). */
+/* */
+/* Copyright 2013, 2014 by */
+/* David Turner, Robert Wilhelm, and Werner Lemberg. */
+/* */
+/* This file is part of the FreeType project, and may only be used, */
+/* modified, and distributed under the terms of the FreeType project */
+/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
+/* this file you indicate that you have read the license and */
+/* understand and accept it fully. */
+/* */
+/***************************************************************************/
+
+
+ /* This header file can be included multiple times. */
+ /* Define `COVERAGE' as needed. */
+
+
+ /* Add new coverages here. The first and second arguments are the */
+ /* coverage name in lowercase and uppercase, respectively, followed */
+ /* by a description string. The last four arguments are the four */
+ /* characters defining the corresponding OpenType feature. */
+
+#if 0
+ /* XXX: It's not possible to define blue zone characters in advance. */
+ COVERAGE( alternative_fractions, ALTERNATIVE_FRACTIONS,
+ "alternative fractions",
+ 'a', 'f', 'r', 'c' )
+#endif
+
+ COVERAGE( petite_capitals_from_capitals, PETITE_CAPITALS_FROM_CAPITALS,
+ "petite capitals from capitals",
+ 'c', '2', 'c', 'p' )
+
+ COVERAGE( small_capitals_from_capitals, SMALL_CAPITALS_FROM_CAPITALS,
+ "small capitals from capitals",
+ 'c', '2', 's', 'c' )
+
+#if 0
+ /* XXX: Only digits are in this coverage, however, both normal style */
+ /* and oldstyle representation forms are possible. */
+ COVERAGE( denominators, DENOMINATORS,
+ "denominators",
+ 'd', 'n', 'o', 'm' )
+#endif
+
+#if 0
+ /* XXX: It's not possible to define blue zone characters in advance. */
+ COVERAGE( fractions, FRACTIONS,
+ "fractions",
+ 'f', 'r', 'a', 'c' )
+#endif
+
+#if 0
+ /* XXX: Only digits are in this coverage, however, both normal style */
+ /* and oldstyle representation forms are possible. */
+ COVERAGE( numerators, NUMERATORS,
+ "numerators",
+ 'n', 'u', 'm', 'r' )
+#endif
+
+ COVERAGE( ordinals, ORDINALS,
+ "ordinals",
+ 'o', 'r', 'd', 'n' )
+
+ COVERAGE( petite_capitals, PETITE_CAPITALS,
+ "petite capitals",
+ 'p', 'c', 'a', 'p' )
+
+ COVERAGE( ruby, RUBY,
+ "ruby",
+ 'r', 'u', 'b', 'y' )
+
+ COVERAGE( scientific_inferiors, SCIENTIFIC_INFERIORS,
+ "scientific inferiors",
+ 's', 'i', 'n', 'f' )
+
+ COVERAGE( small_capitals, SMALL_CAPITALS,
+ "small capitals",
+ 's', 'm', 'c', 'p' )
+
+ COVERAGE( subscript, SUBSCRIPT,
+ "subscript",
+ 's', 'u', 'b', 's' )
+
+ COVERAGE( superscript, SUPERSCRIPT,
+ "superscript",
+ 's', 'u', 'p', 's' )
+
+ COVERAGE( titling, TITLING,
+ "titling",
+ 't', 'i', 't', 'l' )
+
+#if 0
+ /* to be always excluded */
+ COVERAGE(nalt, 'n', 'a', 'l', 't'); /* Alternate Annotation Forms (?) */
+ COVERAGE(ornm, 'o', 'r', 'n', 'm'); /* Ornaments (?) */
+#endif
+
+
+/* END */
diff --git a/src/3rdparty/freetype/src/autofit/afdummy.c b/src/3rdparty/freetype/src/autofit/afdummy.c
index 42b2fcb216..f8702a109e 100644
--- a/src/3rdparty/freetype/src/autofit/afdummy.c
+++ b/src/3rdparty/freetype/src/autofit/afdummy.c
@@ -5,7 +5,7 @@
/* Auto-fitter dummy routines to be used if no hinting should be */
/* performed (body). */
/* */
-/* Copyright 2003, 2004, 2005 by */
+/* Copyright 2003-2005, 2011, 2013 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -19,15 +19,21 @@
#include "afdummy.h"
#include "afhints.h"
+#include "aferrors.h"
static FT_Error
- af_dummy_hints_init( AF_GlyphHints hints,
- AF_ScriptMetrics metrics )
+ af_dummy_hints_init( AF_GlyphHints hints,
+ AF_StyleMetrics metrics )
{
- af_glyph_hints_rescale( hints,
- metrics );
- return 0;
+ af_glyph_hints_rescale( hints, metrics );
+
+ hints->x_scale = metrics->scaler.x_scale;
+ hints->y_scale = metrics->scaler.y_scale;
+ hints->x_delta = metrics->scaler.x_delta;
+ hints->y_delta = metrics->scaler.y_delta;
+
+ return FT_Err_Ok;
}
@@ -35,25 +41,30 @@
af_dummy_hints_apply( AF_GlyphHints hints,
FT_Outline* outline )
{
- FT_UNUSED( hints );
- FT_UNUSED( outline );
+ FT_Error error;
+
- return 0;
+ error = af_glyph_hints_reload( hints, outline );
+ if ( !error )
+ af_glyph_hints_save( hints, outline );
+
+ return error;
}
- AF_DEFINE_SCRIPT_CLASS(af_dummy_script_class,
- AF_SCRIPT_NONE,
- NULL,
+ AF_DEFINE_WRITING_SYSTEM_CLASS(
+ af_dummy_writing_system_class,
+
+ AF_WRITING_SYSTEM_DUMMY,
- sizeof( AF_ScriptMetricsRec ),
+ sizeof ( AF_StyleMetricsRec ),
- (AF_Script_InitMetricsFunc) NULL,
- (AF_Script_ScaleMetricsFunc)NULL,
- (AF_Script_DoneMetricsFunc) NULL,
+ (AF_WritingSystem_InitMetricsFunc) NULL,
+ (AF_WritingSystem_ScaleMetricsFunc)NULL,
+ (AF_WritingSystem_DoneMetricsFunc) NULL,
- (AF_Script_InitHintsFunc) af_dummy_hints_init,
- (AF_Script_ApplyHintsFunc) af_dummy_hints_apply
+ (AF_WritingSystem_InitHintsFunc) af_dummy_hints_init,
+ (AF_WritingSystem_ApplyHintsFunc) af_dummy_hints_apply
)
diff --git a/src/3rdparty/freetype/src/autofit/afdummy.h b/src/3rdparty/freetype/src/autofit/afdummy.h
index b69ef437fe..ad1b0d3abb 100644
--- a/src/3rdparty/freetype/src/autofit/afdummy.h
+++ b/src/3rdparty/freetype/src/autofit/afdummy.h
@@ -5,7 +5,7 @@
/* Auto-fitter dummy routines to be used if no hinting should be */
/* performed (specification). */
/* */
-/* Copyright 2003, 2004, 2005 by */
+/* Copyright 2003-2005, 2011, 2013 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -25,11 +25,9 @@
FT_BEGIN_HEADER
- /* A dummy script metrics class used when no hinting should
- * be performed. This is the default for non-latin glyphs!
- */
+ /* A dummy writing system used when no hinting should be performed. */
- AF_DECLARE_SCRIPT_CLASS(af_dummy_script_class)
+ AF_DECLARE_WRITING_SYSTEM_CLASS( af_dummy_writing_system_class )
/* */
diff --git a/src/3rdparty/freetype/src/autofit/aferrors.h b/src/3rdparty/freetype/src/autofit/aferrors.h
index c2ed5fe2ab..50e1a22dd5 100644
--- a/src/3rdparty/freetype/src/autofit/aferrors.h
+++ b/src/3rdparty/freetype/src/autofit/aferrors.h
@@ -4,7 +4,7 @@
/* */
/* Autofitter error codes (specification only). */
/* */
-/* Copyright 2005 by */
+/* Copyright 2005, 2012 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -30,6 +30,7 @@
#undef __FTERRORS_H__
+#undef FT_ERR_PREFIX
#define FT_ERR_PREFIX AF_Err_
#define FT_ERR_BASE FT_Mod_Err_Autofit
diff --git a/src/3rdparty/freetype/src/autofit/afglobal.c b/src/3rdparty/freetype/src/autofit/afglobal.c
index ac293619d3..a54c20c023 100644
--- a/src/3rdparty/freetype/src/autofit/afglobal.c
+++ b/src/3rdparty/freetype/src/autofit/afglobal.c
@@ -4,7 +4,7 @@
/* */
/* Auto-fitter routines to compute global hinting values (body). */
/* */
-/* Copyright 2003, 2004, 2005, 2006, 2007, 2008, 2009 by */
+/* Copyright 2003-2014 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -17,133 +17,215 @@
#include "afglobal.h"
-#include "afdummy.h"
-#include "aflatin.h"
-#include "afcjk.h"
-#include "afindic.h"
-#include "afpic.h"
+#include "afranges.h"
+#include "hbshim.h"
+#include FT_INTERNAL_DEBUG_H
+
+
+ /*************************************************************************/
+ /* */
+ /* The macro FT_COMPONENT is used in trace mode. It is an implicit */
+ /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */
+ /* messages during execution. */
+ /* */
+#undef FT_COMPONENT
+#define FT_COMPONENT trace_afglobal
+
+
+ /* get writing system specific header files */
+#undef WRITING_SYSTEM
+#define WRITING_SYSTEM( ws, WS ) /* empty */
+#include "afwrtsys.h"
#include "aferrors.h"
+#include "afpic.h"
+
+
+#undef SCRIPT
+#define SCRIPT( s, S, d, h, sc1, sc2, sc3 ) \
+ AF_DEFINE_SCRIPT_CLASS( \
+ af_ ## s ## _script_class, \
+ AF_SCRIPT_ ## S, \
+ af_ ## s ## _uniranges, \
+ sc1, sc2, sc3 )
+
+#include "afscript.h"
+
+
+#undef STYLE
+#define STYLE( s, S, d, ws, sc, ss, c ) \
+ AF_DEFINE_STYLE_CLASS( \
+ af_ ## s ## _style_class, \
+ AF_STYLE_ ## S, \
+ ws, \
+ sc, \
+ ss, \
+ c )
+
+#include "afstyles.h"
-#ifdef FT_OPTION_AUTOFIT2
-#include "aflatin2.h"
-#endif
#ifndef FT_CONFIG_OPTION_PIC
-/* when updating this table, don't forget to update
- AF_SCRIPT_CLASSES_COUNT and autofit_module_class_pic_init */
+#undef WRITING_SYSTEM
+#define WRITING_SYSTEM( ws, WS ) \
+ &af_ ## ws ## _writing_system_class,
- /* populate this list when you add new scripts */
- static AF_ScriptClass const af_script_classes[] =
+ FT_LOCAL_ARRAY_DEF( AF_WritingSystemClass )
+ af_writing_system_classes[] =
{
- &af_dummy_script_class,
-#ifdef FT_OPTION_AUTOFIT2
- &af_latin2_script_class,
-#endif
- &af_latin_script_class,
- &af_cjk_script_class,
- &af_indic_script_class,
+
+#include "afwrtsys.h"
+
NULL /* do not remove */
};
-#endif /* FT_CONFIG_OPTION_PIC */
- /* index of default script in `af_script_classes' */
-#define AF_SCRIPT_LIST_DEFAULT 2
- /* a bit mask indicating an uncovered glyph */
-#define AF_SCRIPT_LIST_NONE 0x7F
- /* if this flag is set, we have an ASCII digit */
-#define AF_DIGIT 0x80
+#undef SCRIPT
+#define SCRIPT( s, S, d, h, sc1, sc2, sc3 ) \
+ &af_ ## s ## _script_class,
+
+ FT_LOCAL_ARRAY_DEF( AF_ScriptClass )
+ af_script_classes[] =
+ {
+
+#include "afscript.h"
+
+ NULL /* do not remove */
+ };
- /*
- * Note that glyph_scripts[] is used to map each glyph into
- * an index into the `af_script_classes' array.
- *
- */
- typedef struct AF_FaceGlobalsRec_
+#undef STYLE
+#define STYLE( s, S, d, ws, sc, ss, c ) \
+ &af_ ## s ## _style_class,
+
+ FT_LOCAL_ARRAY_DEF( AF_StyleClass )
+ af_style_classes[] =
{
- FT_Face face;
- FT_Long glyph_count; /* same as face->num_glyphs */
- FT_Byte* glyph_scripts;
- AF_ScriptMetrics metrics[AF_SCRIPT_MAX];
+#include "afstyles.h"
+
+ NULL /* do not remove */
+ };
+
+#endif /* !FT_CONFIG_OPTION_PIC */
+
- } AF_FaceGlobalsRec;
+#ifdef FT_DEBUG_LEVEL_TRACE
+#undef STYLE
+#define STYLE( s, S, d, ws, sc, ss, c ) #s,
+
+ FT_LOCAL_ARRAY_DEF( char* )
+ af_style_names[] =
+ {
+
+#include "afstyles.h"
+
+ };
- /* Compute the script index of each glyph within a given face. */
+#endif /* FT_DEBUG_LEVEL_TRACE */
+
+
+ /* Compute the style index of each glyph within a given face. */
static FT_Error
- af_face_globals_compute_script_coverage( AF_FaceGlobals globals )
+ af_face_globals_compute_style_coverage( AF_FaceGlobals globals )
{
- FT_Error error = AF_Err_Ok;
+ FT_Error error;
FT_Face face = globals->face;
FT_CharMap old_charmap = face->charmap;
- FT_Byte* gscripts = globals->glyph_scripts;
- FT_UInt ss, i;
+ FT_Byte* gstyles = globals->glyph_styles;
+ FT_UInt ss;
+ FT_UInt i;
+ FT_UInt dflt = ~0U; /* a non-valid value */
- /* the value 255 means `uncovered glyph' */
- FT_MEM_SET( globals->glyph_scripts,
- AF_SCRIPT_LIST_NONE,
+ /* the value AF_STYLE_UNASSIGNED means `uncovered glyph' */
+ FT_MEM_SET( globals->glyph_styles,
+ AF_STYLE_UNASSIGNED,
globals->glyph_count );
error = FT_Select_Charmap( face, FT_ENCODING_UNICODE );
if ( error )
{
- /*
- * Ignore this error; we simply use the default script.
- * XXX: Shouldn't we rather disable hinting?
- */
- error = AF_Err_Ok;
+ /*
+ * Ignore this error; we simply use the fallback style.
+ * XXX: Shouldn't we rather disable hinting?
+ */
+ error = FT_Err_Ok;
goto Exit;
}
- /* scan each script in a Unicode charmap */
- for ( ss = 0; AF_SCRIPT_CLASSES_GET[ss]; ss++ )
+ /* scan each style in a Unicode charmap */
+ for ( ss = 0; AF_STYLE_CLASSES_GET[ss]; ss++ )
{
- AF_ScriptClass clazz = AF_SCRIPT_CLASSES_GET[ss];
+ AF_StyleClass style_class =
+ AF_STYLE_CLASSES_GET[ss];
+ AF_ScriptClass script_class =
+ AF_SCRIPT_CLASSES_GET[style_class->script];
AF_Script_UniRange range;
- if ( clazz->script_uni_ranges == NULL )
+ if ( script_class->script_uni_ranges == NULL )
continue;
/*
- * Scan all unicode points in the range and set the corresponding
- * glyph script index.
+ * Scan all Unicode points in the range and set the corresponding
+ * glyph style index.
*/
- for ( range = clazz->script_uni_ranges; range->first != 0; range++ )
+ if ( style_class->coverage == AF_COVERAGE_DEFAULT )
{
- FT_ULong charcode = range->first;
- FT_UInt gindex;
-
+ if ( (FT_UInt)style_class->script ==
+ globals->module->default_script )
+ dflt = ss;
- gindex = FT_Get_Char_Index( face, charcode );
-
- if ( gindex != 0 &&
- gindex < (FT_ULong)globals->glyph_count &&
- gscripts[gindex] == AF_SCRIPT_LIST_NONE )
+ for ( range = script_class->script_uni_ranges;
+ range->first != 0;
+ range++ )
{
- gscripts[gindex] = (FT_Byte)ss;
- }
+ FT_ULong charcode = range->first;
+ FT_UInt gindex;
- for (;;)
- {
- charcode = FT_Get_Next_Char( face, charcode, &gindex );
- if ( gindex == 0 || charcode > range->last )
- break;
+ gindex = FT_Get_Char_Index( face, charcode );
- if ( gindex < (FT_ULong)globals->glyph_count &&
- gscripts[gindex] == AF_SCRIPT_LIST_NONE )
+ if ( gindex != 0 &&
+ gindex < (FT_ULong)globals->glyph_count &&
+ gstyles[gindex] == AF_STYLE_UNASSIGNED )
+ gstyles[gindex] = (FT_Byte)ss;
+
+ for (;;)
{
- gscripts[gindex] = (FT_Byte)ss;
+ charcode = FT_Get_Next_Char( face, charcode, &gindex );
+
+ if ( gindex == 0 || charcode > range->last )
+ break;
+
+ if ( gindex < (FT_ULong)globals->glyph_count &&
+ gstyles[gindex] == AF_STYLE_UNASSIGNED )
+ gstyles[gindex] = (FT_Byte)ss;
}
}
}
+ else
+ {
+ /* get glyphs not directly addressable by cmap */
+ af_get_coverage( globals, style_class, gstyles );
+ }
+ }
+
+ /* handle the default OpenType features of the default script ... */
+ af_get_coverage( globals, AF_STYLE_CLASSES_GET[dflt], gstyles );
+
+ /* ... and the remaining default OpenType features */
+ for ( ss = 0; AF_STYLE_CLASSES_GET[ss]; ss++ )
+ {
+ AF_StyleClass style_class = AF_STYLE_CLASSES_GET[ss];
+
+
+ if ( ss != dflt && style_class->coverage == AF_COVERAGE_DEFAULT )
+ af_get_coverage( globals, style_class, gstyles );
}
/* mark ASCII digits */
@@ -153,25 +235,68 @@
if ( gindex != 0 && gindex < (FT_ULong)globals->glyph_count )
- gscripts[gindex] |= AF_DIGIT;
+ gstyles[gindex] |= AF_DIGIT;
}
Exit:
/*
- * By default, all uncovered glyphs are set to the latin script.
+ * By default, all uncovered glyphs are set to the fallback style.
* XXX: Shouldn't we disable hinting or do something similar?
*/
+ if ( globals->module->fallback_style != AF_STYLE_UNASSIGNED )
{
FT_Long nn;
for ( nn = 0; nn < globals->glyph_count; nn++ )
{
- if ( gscripts[nn] == AF_SCRIPT_LIST_NONE )
- gscripts[nn] = AF_SCRIPT_LIST_DEFAULT;
+ if ( ( gstyles[nn] & ~AF_DIGIT ) == AF_STYLE_UNASSIGNED )
+ {
+ gstyles[nn] &= ~AF_STYLE_UNASSIGNED;
+ gstyles[nn] |= globals->module->fallback_style;
+ }
+ }
+ }
+
+#ifdef FT_DEBUG_LEVEL_TRACE
+
+ FT_TRACE4(( "\n"
+ "style coverage\n"
+ "==============\n"
+ "\n" ));
+
+ for ( ss = 0; AF_STYLE_CLASSES_GET[ss]; ss++ )
+ {
+ AF_StyleClass style_class = AF_STYLE_CLASSES_GET[ss];
+ FT_UInt count = 0;
+ FT_Long idx;
+
+
+ FT_TRACE4(( "%s:\n", af_style_names[style_class->style] ));
+
+ for ( idx = 0; idx < globals->glyph_count; idx++ )
+ {
+ if ( ( gstyles[idx] & ~AF_DIGIT ) == style_class->style )
+ {
+ if ( !( count % 10 ) )
+ FT_TRACE4(( " " ));
+
+ FT_TRACE4(( " %d", idx ));
+ count++;
+
+ if ( !( count % 10 ) )
+ FT_TRACE4(( "\n" ));
+ }
}
+
+ if ( !count )
+ FT_TRACE4(( " (none)\n" ));
+ if ( count % 10 )
+ FT_TRACE4(( "\n" ));
}
+#endif /* FT_DEBUG_LEVEL_TRACE */
+
FT_Set_Charmap( face, old_charmap );
return error;
}
@@ -179,30 +304,39 @@
FT_LOCAL_DEF( FT_Error )
af_face_globals_new( FT_Face face,
- AF_FaceGlobals *aglobals )
+ AF_FaceGlobals *aglobals,
+ AF_Module module )
{
FT_Error error;
FT_Memory memory;
- AF_FaceGlobals globals;
+ AF_FaceGlobals globals = NULL;
memory = face->memory;
- if ( !FT_ALLOC( globals, sizeof ( *globals ) +
- face->num_glyphs * sizeof ( FT_Byte ) ) )
- {
- globals->face = face;
- globals->glyph_count = face->num_glyphs;
- globals->glyph_scripts = (FT_Byte*)( globals + 1 );
+ if ( FT_ALLOC( globals, sizeof ( *globals ) +
+ face->num_glyphs * sizeof ( FT_Byte ) ) )
+ goto Exit;
- error = af_face_globals_compute_script_coverage( globals );
- if ( error )
- {
- af_face_globals_free( globals );
- globals = NULL;
- }
+ globals->face = face;
+ globals->glyph_count = face->num_glyphs;
+ globals->glyph_styles = (FT_Byte*)( globals + 1 );
+ globals->module = module;
+
+#ifdef FT_CONFIG_OPTION_USE_HARFBUZZ
+ globals->hb_font = hb_ft_font_create( face, NULL );
+#endif
+
+ error = af_face_globals_compute_style_coverage( globals );
+ if ( error )
+ {
+ af_face_globals_free( globals );
+ globals = NULL;
}
+ else
+ globals->increase_x_height = AF_PROP_INCREASE_X_HEIGHT_MAX;
+ Exit:
*aglobals = globals;
return error;
}
@@ -217,25 +351,31 @@
FT_UInt nn;
- for ( nn = 0; nn < AF_SCRIPT_MAX; nn++ )
+ for ( nn = 0; nn < AF_STYLE_MAX; nn++ )
{
if ( globals->metrics[nn] )
{
- AF_ScriptClass clazz = AF_SCRIPT_CLASSES_GET[nn];
+ AF_StyleClass style_class =
+ AF_STYLE_CLASSES_GET[nn];
+ AF_WritingSystemClass writing_system_class =
+ AF_WRITING_SYSTEM_CLASSES_GET[style_class->writing_system];
- FT_ASSERT( globals->metrics[nn]->clazz == clazz );
-
- if ( clazz->script_metrics_done )
- clazz->script_metrics_done( globals->metrics[nn] );
+ if ( writing_system_class->style_metrics_done )
+ writing_system_class->style_metrics_done( globals->metrics[nn] );
FT_FREE( globals->metrics[nn] );
}
}
- globals->glyph_count = 0;
- globals->glyph_scripts = NULL; /* no need to free this one! */
- globals->face = NULL;
+#ifdef FT_CONFIG_OPTION_USE_HARFBUZZ
+ hb_font_destroy( globals->hb_font );
+ globals->hb_font = NULL;
+#endif
+
+ globals->glyph_count = 0;
+ globals->glyph_styles = NULL; /* no need to free this one! */
+ globals->face = NULL;
FT_FREE( globals );
}
@@ -243,60 +383,64 @@
FT_LOCAL_DEF( FT_Error )
- af_face_globals_get_metrics( AF_FaceGlobals globals,
- FT_UInt gindex,
- FT_UInt options,
- AF_ScriptMetrics *ametrics )
+ af_face_globals_get_metrics( AF_FaceGlobals globals,
+ FT_UInt gindex,
+ FT_UInt options,
+ AF_StyleMetrics *ametrics )
{
- AF_ScriptMetrics metrics = NULL;
- FT_UInt gidx;
- AF_ScriptClass clazz;
- FT_UInt script = options & 15;
- const FT_Offset script_max = sizeof ( AF_SCRIPT_CLASSES_GET ) /
- sizeof ( AF_SCRIPT_CLASSES_GET[0] );
- FT_Error error = AF_Err_Ok;
+ AF_StyleMetrics metrics = NULL;
+
+ AF_Style style = (AF_Style)options;
+ AF_WritingSystemClass writing_system_class;
+ AF_StyleClass style_class;
+
+ FT_Error error = FT_Err_Ok;
if ( gindex >= (FT_ULong)globals->glyph_count )
{
- error = AF_Err_Invalid_Argument;
+ error = FT_THROW( Invalid_Argument );
goto Exit;
}
- gidx = script;
- if ( gidx == 0 || gidx + 1 >= script_max )
- gidx = globals->glyph_scripts[gindex] & AF_SCRIPT_LIST_NONE;
+ /* if we have a forced style (via `options'), use it, */
+ /* otherwise look into `glyph_styles' array */
+ if ( style == AF_STYLE_NONE_DFLT || style + 1 >= AF_STYLE_MAX )
+ style = (AF_Style)( globals->glyph_styles[gindex] &
+ AF_STYLE_UNASSIGNED );
- clazz = AF_SCRIPT_CLASSES_GET[gidx];
- if ( script == 0 )
- script = clazz->script;
+ style_class = AF_STYLE_CLASSES_GET[style];
+ writing_system_class = AF_WRITING_SYSTEM_CLASSES_GET
+ [style_class->writing_system];
- metrics = globals->metrics[clazz->script];
+ metrics = globals->metrics[style];
if ( metrics == NULL )
{
- /* create the global metrics object when needed */
+ /* create the global metrics object if necessary */
FT_Memory memory = globals->face->memory;
- if ( FT_ALLOC( metrics, clazz->script_metrics_size ) )
+ if ( FT_ALLOC( metrics, writing_system_class->style_metrics_size ) )
goto Exit;
- metrics->clazz = clazz;
+ metrics->style_class = style_class;
+ metrics->globals = globals;
- if ( clazz->script_metrics_init )
+ if ( writing_system_class->style_metrics_init )
{
- error = clazz->script_metrics_init( metrics, globals->face );
+ error = writing_system_class->style_metrics_init( metrics,
+ globals->face );
if ( error )
{
- if ( clazz->script_metrics_done )
- clazz->script_metrics_done( metrics );
+ if ( writing_system_class->style_metrics_done )
+ writing_system_class->style_metrics_done( metrics );
FT_FREE( metrics );
goto Exit;
}
}
- globals->metrics[clazz->script] = metrics;
+ globals->metrics[style] = metrics;
}
Exit:
@@ -311,7 +455,7 @@
FT_UInt gindex )
{
if ( gindex < (FT_ULong)globals->glyph_count )
- return (FT_Bool)( globals->glyph_scripts[gindex] & AF_DIGIT );
+ return (FT_Bool)( globals->glyph_styles[gindex] & AF_DIGIT );
return (FT_Bool)0;
}
diff --git a/src/3rdparty/freetype/src/autofit/afglobal.h b/src/3rdparty/freetype/src/autofit/afglobal.h
index 2a68e19607..38d8d69528 100644
--- a/src/3rdparty/freetype/src/autofit/afglobal.h
+++ b/src/3rdparty/freetype/src/autofit/afglobal.h
@@ -5,7 +5,7 @@
/* Auto-fitter routines to compute global hinting values */
/* (specification). */
/* */
-/* Copyright 2003, 2004, 2005, 2007, 2009 by */
+/* Copyright 2003-2005, 2007, 2009, 2011-2014 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -17,16 +17,71 @@
/***************************************************************************/
-#ifndef __AF_GLOBAL_H__
-#define __AF_GLOBAL_H__
+#ifndef __AFGLOBAL_H__
+#define __AFGLOBAL_H__
#include "aftypes.h"
+#include "afmodule.h"
+#include "hbshim.h"
FT_BEGIN_HEADER
+ FT_LOCAL_ARRAY( AF_WritingSystemClass )
+ af_writing_system_classes[];
+
+
+#undef SCRIPT
+#define SCRIPT( s, S, d, h, sc1, sc2, sc3 ) \
+ AF_DECLARE_SCRIPT_CLASS( af_ ## s ## _script_class )
+
+#include "afscript.h"
+
+ FT_LOCAL_ARRAY( AF_ScriptClass )
+ af_script_classes[];
+
+
+#undef STYLE
+#define STYLE( s, S, d, ws, sc, ss, c ) \
+ AF_DECLARE_STYLE_CLASS( af_ ## s ## _style_class )
+
+#include "afstyles.h"
+
+ FT_LOCAL_ARRAY( AF_StyleClass )
+ af_style_classes[];
+
+
+#ifdef FT_DEBUG_LEVEL_TRACE
+ FT_LOCAL_ARRAY( char* )
+ af_style_names[];
+#endif
+
+
+ /*
+ * Default values and flags for both autofitter globals (found in
+ * AF_ModuleRec) and face globals (in AF_FaceGlobalsRec).
+ */
+
+ /* index of fallback style in `af_style_classes' */
+#ifdef AF_CONFIG_OPTION_CJK
+#define AF_STYLE_FALLBACK AF_STYLE_HANI_DFLT
+#else
+#define AF_STYLE_FALLBACK AF_STYLE_NONE_DFLT
+#endif
+ /* default script for OpenType; ignored if HarfBuzz isn't used */
+#define AF_SCRIPT_DEFAULT AF_SCRIPT_LATN
+ /* a bit mask indicating an uncovered glyph */
+#define AF_STYLE_UNASSIGNED 0x7F
+ /* if this flag is set, we have an ASCII digit */
+#define AF_DIGIT 0x80
+
+ /* `increase-x-height' property */
+#define AF_PROP_INCREASE_X_HEIGHT_MIN 6
+#define AF_PROP_INCREASE_X_HEIGHT_MAX 0
+
+
/************************************************************************/
/************************************************************************/
/***** *****/
@@ -37,21 +92,45 @@ FT_BEGIN_HEADER
/*
- * model the global hints data for a given face, decomposed into
- * script-specific items
+ * Note that glyph_styles[] maps each glyph to an index into the
+ * `af_style_classes' array.
+ *
*/
- typedef struct AF_FaceGlobalsRec_* AF_FaceGlobals;
+ typedef struct AF_FaceGlobalsRec_
+ {
+ FT_Face face;
+ FT_Long glyph_count; /* same as face->num_glyphs */
+ FT_Byte* glyph_styles;
+
+#ifdef FT_CONFIG_OPTION_USE_HARFBUZZ
+ hb_font_t* hb_font;
+#endif
+
+ /* per-face auto-hinter properties */
+ FT_UInt increase_x_height;
+ AF_StyleMetrics metrics[AF_STYLE_MAX];
+
+ AF_Module module; /* to access global properties */
+
+ } AF_FaceGlobalsRec;
+
+
+ /*
+ * model the global hints data for a given face, decomposed into
+ * style-specific items
+ */
FT_LOCAL( FT_Error )
af_face_globals_new( FT_Face face,
- AF_FaceGlobals *aglobals );
+ AF_FaceGlobals *aglobals,
+ AF_Module module );
FT_LOCAL( FT_Error )
- af_face_globals_get_metrics( AF_FaceGlobals globals,
- FT_UInt gindex,
- FT_UInt options,
- AF_ScriptMetrics *ametrics );
+ af_face_globals_get_metrics( AF_FaceGlobals globals,
+ FT_UInt gindex,
+ FT_UInt options,
+ AF_StyleMetrics *ametrics );
FT_LOCAL( void )
af_face_globals_free( AF_FaceGlobals globals );
@@ -65,7 +144,7 @@ FT_BEGIN_HEADER
FT_END_HEADER
-#endif /* __AF_GLOBALS_H__ */
+#endif /* __AFGLOBAL_H__ */
/* END */
diff --git a/src/3rdparty/freetype/src/autofit/afhints.c b/src/3rdparty/freetype/src/autofit/afhints.c
index fe38fba995..f3cc50f202 100644
--- a/src/3rdparty/freetype/src/autofit/afhints.c
+++ b/src/3rdparty/freetype/src/autofit/afhints.c
@@ -4,7 +4,7 @@
/* */
/* Auto-fitter hinting routines (body). */
/* */
-/* Copyright 2003, 2004, 2005, 2006, 2007, 2009 by */
+/* Copyright 2003-2007, 2009-2014 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -19,14 +19,27 @@
#include "afhints.h"
#include "aferrors.h"
#include FT_INTERNAL_CALC_H
+#include FT_INTERNAL_DEBUG_H
+ /*************************************************************************/
+ /* */
+ /* The macro FT_COMPONENT is used in trace mode. It is an implicit */
+ /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */
+ /* messages during execution. */
+ /* */
+#undef FT_COMPONENT
+#define FT_COMPONENT trace_afhints
+
+
+ /* Get new segment for given axis. */
+
FT_LOCAL_DEF( FT_Error )
af_axis_hints_new_segment( AF_AxisHints axis,
FT_Memory memory,
AF_Segment *asegment )
{
- FT_Error error = AF_Err_Ok;
+ FT_Error error = FT_Err_Ok;
AF_Segment segment = NULL;
@@ -39,7 +52,7 @@
if ( old_max >= big_max )
{
- error = AF_Err_Out_Of_Memory;
+ error = FT_THROW( Out_Of_Memory );
goto Exit;
}
@@ -61,14 +74,17 @@
}
+ /* Get new edge for given axis, direction, and position, */
+ /* without initializing the edge itself. */
+
FT_LOCAL( FT_Error )
af_axis_hints_new_edge( AF_AxisHints axis,
FT_Int fpos,
AF_Direction dir,
FT_Memory memory,
- AF_Edge *aedge )
+ AF_Edge *anedge )
{
- FT_Error error = AF_Err_Ok;
+ FT_Error error = FT_Err_Ok;
AF_Edge edge = NULL;
AF_Edge edges;
@@ -82,7 +98,7 @@
if ( old_max >= big_max )
{
- error = AF_Err_Out_Of_Memory;
+ error = FT_THROW( Out_Of_Memory );
goto Exit;
}
@@ -115,20 +131,27 @@
axis->num_edges++;
- FT_ZERO( edge );
- edge->fpos = (FT_Short)fpos;
- edge->dir = (FT_Char)dir;
-
Exit:
- *aedge = edge;
+ *anedge = edge;
return error;
}
-#ifdef AF_DEBUG
+#ifdef FT_DEBUG_AUTOFIT
#include FT_CONFIG_STANDARD_LIBRARY_H
+ /* The dump functions are used in the `ftgrid' demo program, too. */
+#define AF_DUMP( varformat ) \
+ do \
+ { \
+ if ( to_stdout ) \
+ printf varformat; \
+ else \
+ FT_TRACE7( varformat ); \
+ } while ( 0 )
+
+
static const char*
af_dir_str( AF_Direction dir )
{
@@ -157,41 +180,41 @@
}
-#define AF_INDEX_NUM( ptr, base ) ( (ptr) ? ( (ptr) - (base) ) : -1 )
+#define AF_INDEX_NUM( ptr, base ) (int)( (ptr) ? ( (ptr) - (base) ) : -1 )
+#ifdef __cplusplus
+ extern "C" {
+#endif
void
- af_glyph_hints_dump_points( AF_GlyphHints hints )
+ af_glyph_hints_dump_points( AF_GlyphHints hints,
+ FT_Bool to_stdout )
{
AF_Point points = hints->points;
AF_Point limit = points + hints->num_points;
AF_Point point;
- printf( "Table of points:\n" );
- printf( " [ index | xorg | yorg | xscale | yscale "
- "| xfit | yfit | flags ]\n" );
+ AF_DUMP(( "Table of points:\n"
+ " [ index | xorg | yorg | xscale | yscale"
+ " | xfit | yfit | flags ]\n" ));
for ( point = points; point < limit; point++ )
- {
- printf( " [ %5d | %5d | %5d | %-5.2f | %-5.2f "
- "| %-5.2f | %-5.2f | %c%c%c%c%c%c ]\n",
- point - points,
- point->fx,
- point->fy,
- point->ox/64.0,
- point->oy/64.0,
- point->x/64.0,
- point->y/64.0,
- ( point->flags & AF_FLAG_WEAK_INTERPOLATION ) ? 'w' : ' ',
- ( point->flags & AF_FLAG_INFLECTION ) ? 'i' : ' ',
- ( point->flags & AF_FLAG_EXTREMA_X ) ? '<' : ' ',
- ( point->flags & AF_FLAG_EXTREMA_Y ) ? 'v' : ' ',
- ( point->flags & AF_FLAG_ROUND_X ) ? '(' : ' ',
- ( point->flags & AF_FLAG_ROUND_Y ) ? 'u' : ' ');
- }
- printf( "\n" );
+ AF_DUMP(( " [ %5d | %5d | %5d | %6.2f | %6.2f"
+ " | %5.2f | %5.2f | %c ]\n",
+ AF_INDEX_NUM( point, points ),
+ point->fx,
+ point->fy,
+ point->ox / 64.0,
+ point->oy / 64.0,
+ point->x / 64.0,
+ point->y / 64.0,
+ ( point->flags & AF_FLAG_WEAK_INTERPOLATION ) ? 'w' : ' '));
+ AF_DUMP(( "\n" ));
}
+#ifdef __cplusplus
+ }
+#endif
static const char*
@@ -216,15 +239,20 @@
if ( pos == 0 )
return "normal";
- temp[pos] = 0;
+ temp[pos] = '\0';
return temp;
}
- /* A function to dump the array of linked segments. */
+ /* Dump the array of linked segments. */
+
+#ifdef __cplusplus
+ extern "C" {
+#endif
void
- af_glyph_hints_dump_segments( AF_GlyphHints hints )
+ af_glyph_hints_dump_segments( AF_GlyphHints hints,
+ FT_Bool to_stdout )
{
FT_Int dimension;
@@ -232,36 +260,130 @@
for ( dimension = 1; dimension >= 0; dimension-- )
{
AF_AxisHints axis = &hints->axis[dimension];
+ AF_Point points = hints->points;
+ AF_Edge edges = axis->edges;
AF_Segment segments = axis->segments;
AF_Segment limit = segments + axis->num_segments;
AF_Segment seg;
- printf ( "Table of %s segments:\n",
- dimension == AF_DIMENSION_HORZ ? "vertical" : "horizontal" );
- printf ( " [ index | pos | dir | link | serif |"
- " height | extra | flags ]\n" );
+ AF_DUMP(( "Table of %s segments:\n",
+ dimension == AF_DIMENSION_HORZ ? "vertical"
+ : "horizontal" ));
+ if ( axis->num_segments )
+ AF_DUMP(( " [ index | pos | dir | from"
+ " | to | link | serif | edge"
+ " | height | extra | flags ]\n" ));
+ else
+ AF_DUMP(( " (none)\n" ));
for ( seg = segments; seg < limit; seg++ )
- {
- printf ( " [ %5d | %5.2g | %5s | %4d | %5d | %5d | %5d | %s ]\n",
- seg - segments,
- dimension == AF_DIMENSION_HORZ ? (int)seg->first->ox / 64.0
- : (int)seg->first->oy / 64.0,
- af_dir_str( (AF_Direction)seg->dir ),
- AF_INDEX_NUM( seg->link, segments ),
- AF_INDEX_NUM( seg->serif, segments ),
- seg->height,
- seg->height - ( seg->max_coord - seg->min_coord ),
- af_edge_flags_to_string( seg->flags ) );
- }
- printf( "\n" );
+ AF_DUMP(( " [ %5d | %5.2g | %5s | %4d"
+ " | %4d | %4d | %5d | %4d"
+ " | %6d | %5d | %11s ]\n",
+ AF_INDEX_NUM( seg, segments ),
+ dimension == AF_DIMENSION_HORZ
+ ? (int)seg->first->ox / 64.0
+ : (int)seg->first->oy / 64.0,
+ af_dir_str( (AF_Direction)seg->dir ),
+ AF_INDEX_NUM( seg->first, points ),
+ AF_INDEX_NUM( seg->last, points ),
+ AF_INDEX_NUM( seg->link, segments ),
+ AF_INDEX_NUM( seg->serif, segments ),
+ AF_INDEX_NUM( seg->edge, edges ),
+ seg->height,
+ seg->height - ( seg->max_coord - seg->min_coord ),
+ af_edge_flags_to_string( (AF_Edge_Flags)seg->flags ) ));
+ AF_DUMP(( "\n" ));
}
}
+#ifdef __cplusplus
+ }
+#endif
+
+
+ /* Fetch number of segments. */
+
+#ifdef __cplusplus
+ extern "C" {
+#endif
+ FT_Error
+ af_glyph_hints_get_num_segments( AF_GlyphHints hints,
+ FT_Int dimension,
+ FT_Int* num_segments )
+ {
+ AF_Dimension dim;
+ AF_AxisHints axis;
+
+
+ dim = ( dimension == 0 ) ? AF_DIMENSION_HORZ : AF_DIMENSION_VERT;
+
+ axis = &hints->axis[dim];
+ *num_segments = axis->num_segments;
+
+ return FT_Err_Ok;
+ }
+#ifdef __cplusplus
+ }
+#endif
+
+
+ /* Fetch offset of segments into user supplied offset array. */
+
+#ifdef __cplusplus
+ extern "C" {
+#endif
+ FT_Error
+ af_glyph_hints_get_segment_offset( AF_GlyphHints hints,
+ FT_Int dimension,
+ FT_Int idx,
+ FT_Pos *offset,
+ FT_Bool *is_blue,
+ FT_Pos *blue_offset )
+ {
+ AF_Dimension dim;
+ AF_AxisHints axis;
+ AF_Segment seg;
+
+
+ if ( !offset )
+ return FT_THROW( Invalid_Argument );
+
+ dim = ( dimension == 0 ) ? AF_DIMENSION_HORZ : AF_DIMENSION_VERT;
+
+ axis = &hints->axis[dim];
+
+ if ( idx < 0 || idx >= axis->num_segments )
+ return FT_THROW( Invalid_Argument );
+
+ seg = &axis->segments[idx];
+ *offset = ( dim == AF_DIMENSION_HORZ ) ? seg->first->ox
+ : seg->first->oy;
+ if ( seg->edge )
+ *is_blue = (FT_Bool)( seg->edge->blue_edge != 0 );
+ else
+ *is_blue = FALSE;
+
+ if ( *is_blue )
+ *blue_offset = seg->edge->blue_edge->cur;
+ else
+ *blue_offset = 0;
+
+ return FT_Err_Ok;
+ }
+#ifdef __cplusplus
+ }
+#endif
+
+ /* Dump the array of linked edges. */
+#ifdef __cplusplus
+ extern "C" {
+#endif
void
- af_glyph_hints_dump_edges( AF_GlyphHints hints )
+ af_glyph_hints_dump_edges( AF_GlyphHints hints,
+ FT_Bool to_stdout )
{
FT_Int dimension;
@@ -276,60 +398,43 @@
/*
* note: AF_DIMENSION_HORZ corresponds to _vertical_ edges
- * since they have constant a X coordinate.
+ * since they have a constant X coordinate.
*/
- printf ( "Table of %s edges:\n",
- dimension == AF_DIMENSION_HORZ ? "vertical" : "horizontal" );
- printf ( " [ index | pos | dir | link |"
- " serif | blue | opos | pos | flags ]\n" );
+ AF_DUMP(( "Table of %s edges:\n",
+ dimension == AF_DIMENSION_HORZ ? "vertical"
+ : "horizontal" ));
+ if ( axis->num_edges )
+ AF_DUMP(( " [ index | pos | dir | link"
+ " | serif | blue | opos | pos | flags ]\n" ));
+ else
+ AF_DUMP(( " (none)\n" ));
for ( edge = edges; edge < limit; edge++ )
- {
- printf ( " [ %5d | %5.2g | %5s | %4d |"
- " %5d | %c | %5.2f | %5.2f | %s ]\n",
- edge - edges,
- (int)edge->opos / 64.0,
- af_dir_str( (AF_Direction)edge->dir ),
- AF_INDEX_NUM( edge->link, edges ),
- AF_INDEX_NUM( edge->serif, edges ),
- edge->blue_edge ? 'y' : 'n',
- edge->opos / 64.0,
- edge->pos / 64.0,
- af_edge_flags_to_string( edge->flags ) );
- }
- printf( "\n" );
+ AF_DUMP(( " [ %5d | %5.2g | %5s | %4d"
+ " | %5d | %c | %5.2f | %5.2f | %11s ]\n",
+ AF_INDEX_NUM( edge, edges ),
+ (int)edge->opos / 64.0,
+ af_dir_str( (AF_Direction)edge->dir ),
+ AF_INDEX_NUM( edge->link, edges ),
+ AF_INDEX_NUM( edge->serif, edges ),
+ edge->blue_edge ? 'y' : 'n',
+ edge->opos / 64.0,
+ edge->pos / 64.0,
+ af_edge_flags_to_string( (AF_Edge_Flags)edge->flags ) ));
+ AF_DUMP(( "\n" ));
}
}
-
-#else /* !AF_DEBUG */
-
- /* these empty stubs are only used to link the `ftgrid' test program */
- /* when debugging is disabled */
-
- void
- af_glyph_hints_dump_points( AF_GlyphHints hints )
- {
- FT_UNUSED( hints );
- }
-
-
- void
- af_glyph_hints_dump_segments( AF_GlyphHints hints )
- {
- FT_UNUSED( hints );
+#ifdef __cplusplus
}
+#endif
+#undef AF_DUMP
- void
- af_glyph_hints_dump_edges( AF_GlyphHints hints )
- {
- FT_UNUSED( hints );
- }
+#endif /* !FT_DEBUG_AUTOFIT */
-#endif /* !AF_DEBUG */
+ /* Compute the direction value of a given vector. */
- /* compute the direction value of a given vector */
FT_LOCAL_DEF( AF_Direction )
af_direction_compute( FT_Pos dx,
FT_Pos dy )
@@ -369,6 +474,8 @@
}
}
+ /* return no direction if arm lengths differ too much */
+ /* (value 14 is heuristic, corresponding to approx. 4.1 degrees) */
ss *= 14;
if ( FT_ABS( ll ) <= FT_ABS( ss ) )
dir = AF_DIR_NONE;
@@ -377,120 +484,6 @@
}
- /* compute all inflex points in a given glyph */
-
- static void
- af_glyph_hints_compute_inflections( AF_GlyphHints hints )
- {
- AF_Point* contour = hints->contours;
- AF_Point* contour_limit = contour + hints->num_contours;
-
-
- /* do each contour separately */
- for ( ; contour < contour_limit; contour++ )
- {
- AF_Point point = contour[0];
- AF_Point first = point;
- AF_Point start = point;
- AF_Point end = point;
- AF_Point before;
- AF_Point after;
- FT_Pos in_x, in_y, out_x, out_y;
- AF_Angle orient_prev, orient_cur;
- FT_Int finished = 0;
-
-
- /* compute first segment in contour */
- first = point;
-
- start = end = first;
- do
- {
- end = end->next;
- if ( end == first )
- goto Skip;
-
- in_x = end->fx - start->fx;
- in_y = end->fy - start->fy;
-
- } while ( in_x == 0 && in_y == 0 );
-
- /* extend the segment start whenever possible */
- before = start;
- do
- {
- do
- {
- start = before;
- before = before->prev;
- if ( before == first )
- goto Skip;
-
- out_x = start->fx - before->fx;
- out_y = start->fy - before->fy;
-
- } while ( out_x == 0 && out_y == 0 );
-
- orient_prev = ft_corner_orientation( in_x, in_y, out_x, out_y );
-
- } while ( orient_prev == 0 );
-
- first = start;
-
- in_x = out_x;
- in_y = out_y;
-
- /* now process all segments in the contour */
- do
- {
- /* first, extend current segment's end whenever possible */
- after = end;
- do
- {
- do
- {
- end = after;
- after = after->next;
- if ( after == first )
- finished = 1;
-
- out_x = after->fx - end->fx;
- out_y = after->fy - end->fy;
-
- } while ( out_x == 0 && out_y == 0 );
-
- orient_cur = ft_corner_orientation( in_x, in_y, out_x, out_y );
-
- } while ( orient_cur == 0 );
-
- if ( ( orient_prev + orient_cur ) == 0 )
- {
- /* we have an inflection point here */
- do
- {
- start->flags |= AF_FLAG_INFLECTION;
- start = start->next;
-
- } while ( start != end );
-
- start->flags |= AF_FLAG_INFLECTION;
- }
-
- start = end;
- end = after;
-
- orient_prev = orient_cur;
- in_x = out_x;
- in_y = out_y;
-
- } while ( !finished );
-
- Skip:
- ;
- }
- }
-
-
FT_LOCAL_DEF( void )
af_glyph_hints_init( AF_GlyphHints hints,
FT_Memory memory )
@@ -503,58 +496,62 @@
FT_LOCAL_DEF( void )
af_glyph_hints_done( AF_GlyphHints hints )
{
- if ( hints && hints->memory )
- {
- FT_Memory memory = hints->memory;
- int dim;
+ FT_Memory memory = hints->memory;
+ int dim;
- /*
- * note that we don't need to free the segment and edge
- * buffers, since they are really within the hints->points array
- */
- for ( dim = 0; dim < AF_DIMENSION_MAX; dim++ )
- {
- AF_AxisHints axis = &hints->axis[dim];
+ if ( !( hints && hints->memory ) )
+ return;
+ /*
+ * note that we don't need to free the segment and edge
+ * buffers since they are really within the hints->points array
+ */
+ for ( dim = 0; dim < AF_DIMENSION_MAX; dim++ )
+ {
+ AF_AxisHints axis = &hints->axis[dim];
- axis->num_segments = 0;
- axis->max_segments = 0;
- FT_FREE( axis->segments );
- axis->num_edges = 0;
- axis->max_edges = 0;
- FT_FREE( axis->edges );
- }
+ axis->num_segments = 0;
+ axis->max_segments = 0;
+ FT_FREE( axis->segments );
- FT_FREE( hints->contours );
- hints->max_contours = 0;
- hints->num_contours = 0;
+ axis->num_edges = 0;
+ axis->max_edges = 0;
+ FT_FREE( axis->edges );
+ }
- FT_FREE( hints->points );
- hints->num_points = 0;
- hints->max_points = 0;
+ FT_FREE( hints->contours );
+ hints->max_contours = 0;
+ hints->num_contours = 0;
- hints->memory = NULL;
- }
+ FT_FREE( hints->points );
+ hints->num_points = 0;
+ hints->max_points = 0;
+
+ hints->memory = NULL;
}
+ /* Reset metrics. */
+
FT_LOCAL_DEF( void )
- af_glyph_hints_rescale( AF_GlyphHints hints,
- AF_ScriptMetrics metrics )
+ af_glyph_hints_rescale( AF_GlyphHints hints,
+ AF_StyleMetrics metrics )
{
hints->metrics = metrics;
hints->scaler_flags = metrics->scaler.flags;
}
+ /* Recompute all AF_Point in AF_GlyphHints from the definitions */
+ /* in a source outline. */
+
FT_LOCAL_DEF( FT_Error )
af_glyph_hints_reload( AF_GlyphHints hints,
- FT_Outline* outline,
- FT_Bool get_inflections )
+ FT_Outline* outline )
{
- FT_Error error = AF_Err_Ok;
+ FT_Error error = FT_Err_Ok;
AF_Point points;
FT_UInt old_max, new_max;
FT_Fixed x_scale = hints->x_scale;
@@ -572,12 +569,12 @@
hints->axis[1].num_segments = 0;
hints->axis[1].num_edges = 0;
- /* first of all, reallocate the contours array when necessary */
+ /* first of all, reallocate the contours array if necessary */
new_max = (FT_UInt)outline->n_contours;
old_max = hints->max_contours;
if ( new_max > old_max )
{
- new_max = ( new_max + 3 ) & ~3;
+ new_max = ( new_max + 3 ) & ~3; /* round up to a multiple of 4 */
if ( FT_RENEW_ARRAY( hints->contours, old_max, new_max ) )
goto Exit;
@@ -594,7 +591,7 @@
old_max = hints->max_points;
if ( new_max > old_max )
{
- new_max = ( new_max + 2 + 7 ) & ~7;
+ new_max = ( new_max + 2 + 7 ) & ~7; /* round up to a multiple of 8 */
if ( FT_RENEW_ARRAY( hints->points, old_max, new_max ) )
goto Exit;
@@ -639,15 +636,16 @@
{
FT_Vector* vec = outline->points;
char* tag = outline->tags;
- AF_Point first = points;
AF_Point end = points + outline->contours[0];
AF_Point prev = end;
FT_Int contour_index = 0;
- FT_UNUSED( first );
for ( point = points; point < point_limit; point++, vec++, tag++ )
{
+ point->in_dir = (FT_Char)AF_DIR_NONE;
+ point->out_dir = (FT_Char)AF_DIR_NONE;
+
point->fx = (FT_Short)vec->x;
point->fy = (FT_Short)vec->y;
point->ox = point->x = FT_MulFix( vec->x, x_scale ) + x_delta;
@@ -662,7 +660,7 @@
point->flags = AF_FLAG_CUBIC;
break;
default:
- point->flags = 0;
+ point->flags = AF_FLAG_NONE;
}
point->prev = prev;
@@ -673,15 +671,14 @@
{
if ( ++contour_index < outline->n_contours )
{
- first = point + 1;
- end = points + outline->contours[contour_index];
- prev = end;
+ end = points + outline->contours[contour_index];
+ prev = end;
}
}
}
}
- /* set-up the contours array */
+ /* set up the contours array */
{
AF_Point* contour = hints->contours;
AF_Point* contour_limit = contour + hints->num_contours;
@@ -696,72 +693,239 @@
}
}
- /* compute directions of in & out vectors */
{
- AF_Point first = points;
- AF_Point prev = NULL;
- FT_Pos in_x = 0;
- FT_Pos in_y = 0;
- AF_Direction in_dir = AF_DIR_NONE;
+ /*
+ * Compute directions of `in' and `out' vectors.
+ *
+ * Note that distances between points that are very near to each
+ * other are accumulated. In other words, the auto-hinter
+ * prepends the small vectors between near points to the first
+ * non-near vector. All intermediate points are tagged as
+ * weak; the directions are adjusted also to be equal to the
+ * accumulated one.
+ */
+
+ /* value 20 in `near_limit' is heuristic */
+ FT_UInt units_per_em = hints->metrics->scaler.face->units_per_EM;
+ FT_Int near_limit = 20 * units_per_em / 2048;
+ FT_Int near_limit2 = 2 * near_limit - 1;
+
+ AF_Point* contour;
+ AF_Point* contour_limit = hints->contours + hints->num_contours;
+
+
+ for ( contour = hints->contours; contour < contour_limit; contour++ )
+ {
+ AF_Point first = *contour;
+ AF_Point next, prev, curr;
+ FT_Pos out_x, out_y;
- for ( point = points; point < point_limit; point++ )
- {
- AF_Point next;
- FT_Pos out_x, out_y;
+ FT_Bool is_first;
- if ( point == first )
+ /* since the first point of a contour could be part of a */
+ /* series of near points, go backwards to find the first */
+ /* non-near point and adjust `first' */
+
+ point = first;
+ prev = first->prev;
+
+ while ( prev != first )
{
- prev = first->prev;
- in_x = first->fx - prev->fx;
- in_y = first->fy - prev->fy;
- in_dir = af_direction_compute( in_x, in_y );
- first = prev + 1;
+ out_x = point->fx - prev->fx;
+ out_y = point->fy - prev->fy;
+
+ /*
+ * We use Taxicab metrics to measure the vector length.
+ *
+ * Note that the accumulated distances so far could have the
+ * opposite direction of the distance measured here. For this
+ * reason we use `near_limit2' for the comparison to get a
+ * non-near point even in the worst case.
+ */
+ if ( FT_ABS( out_x ) + FT_ABS( out_y ) >= near_limit2 )
+ break;
+
+ point = prev;
+ prev = prev->prev;
+ }
+
+ /* adjust first point */
+ first = point;
+
+ /* now loop over all points of the contour to get */
+ /* `in' and `out' vector directions */
+
+ curr = first;
+
+ /*
+ * We abuse the `u' and `v' fields to store index deltas to the
+ * next and previous non-near point, respectively.
+ *
+ * To avoid problems with not having non-near points, we point to
+ * `first' by default as the next non-near point.
+ *
+ */
+ curr->u = (FT_Pos)( first - curr );
+ first->v = -curr->u;
+
+ out_x = 0;
+ out_y = 0;
+
+ is_first = 1;
+
+ for ( point = first;
+ point != first || is_first;
+ point = point->next )
+ {
+ AF_Direction out_dir;
+
+
+ is_first = 0;
+
+ next = point->next;
+
+ out_x += next->fx - point->fx;
+ out_y += next->fy - point->fy;
+
+ if ( FT_ABS( out_x ) + FT_ABS( out_y ) < near_limit )
+ {
+ next->flags |= AF_FLAG_WEAK_INTERPOLATION;
+ continue;
+ }
+
+ curr->u = (FT_Pos)( next - curr );
+ next->v = -curr->u;
+
+ out_dir = af_direction_compute( out_x, out_y );
+
+ /* adjust directions for all points inbetween; */
+ /* the loop also updates position of `curr' */
+ curr->out_dir = (FT_Char)out_dir;
+ for ( curr = curr->next; curr != next; curr = curr->next )
+ {
+ curr->in_dir = (FT_Char)out_dir;
+ curr->out_dir = (FT_Char)out_dir;
+ }
+ next->in_dir = (FT_Char)out_dir;
+
+ curr->u = (FT_Pos)( first - curr );
+ first->v = -curr->u;
+
+ out_x = 0;
+ out_y = 0;
}
+ }
+
+ /*
+ * The next step is to `simplify' an outline's topology so that we
+ * can identify local extrema more reliably: A series of
+ * non-horizontal or non-vertical vectors pointing into the same
+ * quadrant are handled as a single, long vector. From a
+ * topological point of the view, the intermediate points are of no
+ * interest and thus tagged as weak.
+ */
+
+ for ( point = points; point < point_limit; point++ )
+ {
+ if ( point->flags & AF_FLAG_WEAK_INTERPOLATION )
+ continue;
+
+ if ( point->in_dir == AF_DIR_NONE &&
+ point->out_dir == AF_DIR_NONE )
+ {
+ /* check whether both vectors point into the same quadrant */
+
+ FT_Pos in_x, in_y;
+ FT_Pos out_x, out_y;
+
+ AF_Point next_u = point + point->u;
+ AF_Point prev_v = point + point->v;
- point->in_dir = (FT_Char)in_dir;
- next = point->next;
- out_x = next->fx - point->fx;
- out_y = next->fy - point->fy;
+ in_x = point->fx - prev_v->fx;
+ in_y = point->fy - prev_v->fy;
- in_dir = af_direction_compute( out_x, out_y );
- point->out_dir = (FT_Char)in_dir;
+ out_x = next_u->fx - point->fx;
+ out_y = next_u->fy - point->fy;
- if ( point->flags & ( AF_FLAG_CONIC | AF_FLAG_CUBIC ) )
+ if ( ( in_x ^ out_x ) >= 0 && ( in_y ^ out_y ) >= 0 )
+ {
+ /* yes, so tag current point as weak */
+ /* and update index deltas */
+
+ point->flags |= AF_FLAG_WEAK_INTERPOLATION;
+
+ prev_v->u = (FT_Pos)( next_u - prev_v );
+ next_u->v = -prev_v->u;
+ }
+ }
+ }
+
+ /*
+ * Finally, check for remaining weak points. Everything else not
+ * collected in edges so far is then implicitly classified as strong
+ * points.
+ */
+
+ for ( point = points; point < point_limit; point++ )
+ {
+ if ( point->flags & AF_FLAG_WEAK_INTERPOLATION )
+ continue;
+
+ if ( point->flags & AF_FLAG_CONTROL )
{
+ /* control points are always weak */
Is_Weak_Point:
point->flags |= AF_FLAG_WEAK_INTERPOLATION;
}
else if ( point->out_dir == point->in_dir )
{
if ( point->out_dir != AF_DIR_NONE )
+ {
+ /* current point lies on a horizontal or */
+ /* vertical segment (but doesn't start or end it) */
goto Is_Weak_Point;
+ }
- if ( ft_corner_is_flat( in_x, in_y, out_x, out_y ) )
- goto Is_Weak_Point;
+ {
+ AF_Point next_u = point + point->u;
+ AF_Point prev_v = point + point->v;
+
+
+ if ( ft_corner_is_flat( point->fx - prev_v->fx,
+ point->fy - prev_v->fy,
+ next_u->fx - point->fx,
+ next_u->fy - point->fy ) )
+ {
+ /* either the `in' or the `out' vector is much more */
+ /* dominant than the other one, so tag current point */
+ /* as weak and update index deltas */
+
+ prev_v->u = (FT_Pos)( next_u - prev_v );
+ next_u->v = -prev_v->u;
+
+ goto Is_Weak_Point;
+ }
+ }
}
else if ( point->in_dir == -point->out_dir )
+ {
+ /* current point forms a spike */
goto Is_Weak_Point;
-
- in_x = out_x;
- in_y = out_y;
- prev = point;
+ }
}
}
}
- /* compute inflection points -- */
- /* disabled due to no longer perceived benefits */
- if ( 0 && get_inflections )
- af_glyph_hints_compute_inflections( hints );
-
Exit:
return error;
}
+ /* Store the hinted outline in an FT_Outline structure. */
+
FT_LOCAL_DEF( void )
af_glyph_hints_save( AF_GlyphHints hints,
FT_Outline* outline )
@@ -794,6 +958,9 @@
****************************************************************/
+ /* Align all points of an edge to the same coordinate value, */
+ /* either horizontally or vertically. */
+
FT_LOCAL_DEF( void )
af_glyph_hints_align_edge_points( AF_GlyphHints hints,
AF_Dimension dim )
@@ -827,7 +994,6 @@
break;
point = point->next;
-
}
}
}
@@ -867,8 +1033,8 @@
****************************************************************/
- /* hint the strong points -- this is equivalent to the TrueType `IP' */
- /* hinting instruction */
+ /* Hint the strong points -- this is equivalent to the TrueType `IP' */
+ /* hinting instruction. */
FT_LOCAL_DEF( void )
af_glyph_hints_align_strong_points( AF_GlyphHints hints,
@@ -905,8 +1071,7 @@
/* if this point is candidate to weak interpolation, we */
/* interpolate it after all strong points have been processed */
- if ( ( point->flags & AF_FLAG_WEAK_INTERPOLATION ) &&
- !( point->flags & AF_FLAG_INFLECTION ) )
+ if ( ( point->flags & AF_FLAG_WEAK_INTERPOLATION ) )
continue;
if ( dim == AF_DIMENSION_VERT )
@@ -950,11 +1115,12 @@
max = edge_limit - edges;
#if 1
- /* for small edge counts, a linear search is better */
+ /* for a small number of edges, a linear search is better */
if ( max <= 8 )
{
FT_PtrDist nn;
+
for ( nn = 0; nn < max; nn++ )
if ( edges[nn].fpos >= u )
break;
@@ -986,6 +1152,7 @@
}
}
+ /* point is not on an edge */
{
AF_Edge before = edges + min - 1;
AF_Edge after = edges + min + 0;
@@ -1021,6 +1188,10 @@
****************************************************************/
+ /* Shift the original coordinates of all points between `p1' and */
+ /* `p2' to get hinted coordinates, using the same difference as */
+ /* given by `ref'. */
+
static void
af_iup_shift( AF_Point p1,
AF_Point p2,
@@ -1029,6 +1200,7 @@
AF_Point p;
FT_Pos delta = ref->u - ref->v;
+
if ( delta == 0 )
return;
@@ -1040,6 +1212,13 @@
}
+ /* Interpolate the original coordinates of all points between `p1' and */
+ /* `p2' to get hinted coordinates, using `ref1' and `ref2' as the */
+ /* reference points. The `u' and `v' members are the current and */
+ /* original coordinate values, respectively. */
+ /* */
+ /* Details can be found in the TrueType bytecode specification. */
+
static void
af_iup_interp( AF_Point p1,
AF_Point p2,
@@ -1108,6 +1287,9 @@
}
+ /* Hint the weak points -- this is equivalent to the TrueType `IUP' */
+ /* hinting instruction. */
+
FT_LOCAL_DEF( void )
af_glyph_hints_align_weak_points( AF_GlyphHints hints,
AF_Dimension dim )
@@ -1145,8 +1327,6 @@
}
}
- point = points;
-
for ( ; contour < contour_limit; contour++ )
{
AF_Point first_touched, last_touched;
@@ -1169,21 +1349,21 @@
}
first_touched = point;
- last_touched = point;
for (;;)
{
- FT_ASSERT( point <= end_point &&
+ FT_ASSERT( point <= end_point &&
( point->flags & touch_flag ) != 0 );
- /* skip any touched neighbhours */
- while ( point < end_point && ( point[1].flags & touch_flag ) != 0 )
+ /* skip any touched neighbours */
+ while ( point < end_point &&
+ ( point[1].flags & touch_flag ) != 0 )
point++;
last_touched = point;
/* find the next touched point, if any */
- point ++;
+ point++;
for (;;)
{
if ( point > end_point )
@@ -1203,9 +1383,8 @@
EndContour:
/* special case: only one point was touched */
if ( last_touched == first_touched )
- {
af_iup_shift( first_point, end_point, first_touched );
- }
+
else /* interpolate the last part */
{
if ( last_touched < end_point )
@@ -1235,7 +1414,9 @@
}
-#ifdef AF_USE_WARPER
+#ifdef AF_CONFIG_OPTION_USE_WARPER
+
+ /* Apply (small) warp scale and warp delta for given dimension. */
FT_LOCAL_DEF( void )
af_glyph_hints_scale_dim( AF_GlyphHints hints,
@@ -1260,6 +1441,6 @@
}
}
-#endif /* AF_USE_WARPER */
+#endif /* AF_CONFIG_OPTION_USE_WARPER */
/* END */
diff --git a/src/3rdparty/freetype/src/autofit/afhints.h b/src/3rdparty/freetype/src/autofit/afhints.h
index 675826835a..92101de7ca 100644
--- a/src/3rdparty/freetype/src/autofit/afhints.h
+++ b/src/3rdparty/freetype/src/autofit/afhints.h
@@ -4,7 +4,7 @@
/* */
/* Auto-fitter hinting routines (specification). */
/* */
-/* Copyright 2003, 2004, 2005, 2006, 2007, 2008 by */
+/* Copyright 2003-2008, 2010-2012, 2014 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -25,10 +25,10 @@
FT_BEGIN_HEADER
- /*
- * The definition of outline glyph hints. These are shared by all
- * script analysis routines (until now).
- */
+ /*
+ * The definition of outline glyph hints. These are shared by all
+ * writing system analysis routines (until now).
+ */
typedef enum AF_Dimension_
{
@@ -55,6 +55,157 @@ FT_BEGIN_HEADER
} AF_Direction;
+ /*
+ * The following explanations are mostly taken from the article
+ *
+ * Real-Time Grid Fitting of Typographic Outlines
+ *
+ * by David Turner and Werner Lemberg
+ *
+ * http://www.tug.org/TUGboat/Articles/tb24-3/lemberg.pdf
+ *
+ * with appropriate updates.
+ *
+ *
+ * Segments
+ *
+ * `af_{cjk,latin,...}_hints_compute_segments' are the functions to
+ * find segments in an outline.
+ *
+ * A segment is a series of at least two consecutive points that are
+ * approximately aligned along a coordinate axis. The analysis to do
+ * so is specific to a writing system.
+ *
+ *
+ * Edges
+ *
+ * `af_{cjk,latin,...}_hints_compute_edges' are the functions to find
+ * edges.
+ *
+ * As soon as segments are defined, the auto-hinter groups them into
+ * edges. An edge corresponds to a single position on the main
+ * dimension that collects one or more segments (allowing for a small
+ * threshold).
+ *
+ * As an example, the `latin' writing system first tries to grid-fit
+ * edges, then to align segments on the edges unless it detects that
+ * they form a serif.
+ *
+ *
+ * A H
+ * | |
+ * | |
+ * | |
+ * | |
+ * C | | F
+ * +------<-----+ +-----<------+
+ * | B G |
+ * | |
+ * | |
+ * +--------------->------------------+
+ * D E
+ *
+ *
+ * Stems
+ *
+ * Stems are detected by `af_{cjk,latin,...}_hint_edges'.
+ *
+ * Segments need to be `linked' to other ones in order to detect stems.
+ * A stem is made of two segments that face each other in opposite
+ * directions and that are sufficiently close to each other. Using
+ * vocabulary from the TrueType specification, stem segments form a
+ * `black distance'.
+ *
+ * In the above ASCII drawing, the horizontal segments are BC, DE, and
+ * FG; the vertical segments are AB, CD, EF, and GH.
+ *
+ * Each segment has at most one `best' candidate to form a black
+ * distance, or no candidate at all. Notice that two distinct segments
+ * can have the same candidate, which frequently means a serif.
+ *
+ * A stem is recognized by the following condition:
+ *
+ * best segment_1 = segment_2 && best segment_2 = segment_1
+ *
+ * The best candidate is stored in field `link' in structure
+ * `AF_Segment'.
+ *
+ * In the above ASCII drawing, the best candidate for both AB and CD is
+ * GH, while the best candidate for GH is AB. Similarly, the best
+ * candidate for EF and GH is AB, while the best candidate for AB is
+ * GH.
+ *
+ * The detection and handling of stems is dependent on the writing
+ * system.
+ *
+ *
+ * Serifs
+ *
+ * Serifs are detected by `af_{cjk,latin,...}_hint_edges'.
+ *
+ * In comparison to a stem, a serif (as handled by the auto-hinter
+ * module that takes care of the `latin' writing system) has
+ *
+ * best segment_1 = segment_2 && best segment_2 != segment_1
+ *
+ * where segment_1 corresponds to the serif segment (CD and EF in the
+ * above ASCII drawing).
+ *
+ * The best candidate is stored in field `serif' in structure
+ * `AF_Segment' (and `link' is set to NULL).
+ *
+ *
+ * Touched points
+ *
+ * A point is called `touched' if it has been processed somehow by the
+ * auto-hinter. It basically means that it shouldn't be moved again
+ * (or moved only under certain constraints to preserve the already
+ * applied processing).
+ *
+ *
+ * Flat and round segments
+ *
+ * Segments are `round' or `flat', depending on the series of points
+ * that define them. A segment is round if the next and previous point
+ * of an extremum (which can be either a single point or sequence of
+ * points) are both conic or cubic control points. Otherwise, a
+ * segment with an extremum is flat.
+ *
+ *
+ * Strong Points
+ *
+ * Experience has shown that points not part of an edge need to be
+ * interpolated linearly between their two closest edges, even if these
+ * are not part of the contour of those particular points. Typical
+ * candidates for this are
+ *
+ * - angle points (i.e., points where the `in' and `out' direction
+ * differ greatly)
+ *
+ * - inflection points (i.e., where the `in' and `out' angles are the
+ * same, but the curvature changes sign) [currently, such points
+ * aren't handled specially in the auto-hinter]
+ *
+ * `af_glyph_hints_align_strong_points' is the function that takes
+ * care of such situations; it is equivalent to the TrueType `IP'
+ * hinting instruction.
+ *
+ *
+ * Weak Points
+ *
+ * Other points in the outline must be interpolated using the
+ * coordinates of their previous and next unfitted contour neighbours.
+ * These are called `weak points' and are touched by the function
+ * `af_glyph_hints_align_weak_points', equivalent to the TrueType `IUP'
+ * hinting instruction. Typical candidates are control points and
+ * points on the contour without a major direction.
+ *
+ * The major effect is to reduce possible distortion caused by
+ * alignment of edges and strong points, thus weak points are processed
+ * after strong points.
+ */
+
+
/* point hint flags */
typedef enum AF_Flags_
{
@@ -65,23 +216,12 @@ FT_BEGIN_HEADER
AF_FLAG_CUBIC = 1 << 1,
AF_FLAG_CONTROL = AF_FLAG_CONIC | AF_FLAG_CUBIC,
- /* point extremum flags */
- AF_FLAG_EXTREMA_X = 1 << 2,
- AF_FLAG_EXTREMA_Y = 1 << 3,
-
- /* point roundness flags */
- AF_FLAG_ROUND_X = 1 << 4,
- AF_FLAG_ROUND_Y = 1 << 5,
-
/* point touch flags */
- AF_FLAG_TOUCH_X = 1 << 6,
- AF_FLAG_TOUCH_Y = 1 << 7,
+ AF_FLAG_TOUCH_X = 1 << 2,
+ AF_FLAG_TOUCH_Y = 1 << 3,
/* candidates for weak interpolation have this flag set */
- AF_FLAG_WEAK_INTERPOLATION = 1 << 8,
-
- /* all inflection points in the outline have this flag set */
- AF_FLAG_INFLECTION = 1 << 9
+ AF_FLAG_WEAK_INTERPOLATION = 1 << 4
} AF_Flags;
@@ -89,10 +229,11 @@ FT_BEGIN_HEADER
/* edge hint flags */
typedef enum AF_Edge_Flags_
{
- AF_EDGE_NORMAL = 0,
- AF_EDGE_ROUND = 1 << 0,
- AF_EDGE_SERIF = 1 << 1,
- AF_EDGE_DONE = 1 << 2
+ AF_EDGE_NORMAL = 0,
+ AF_EDGE_ROUND = 1 << 0,
+ AF_EDGE_SERIF = 1 << 1,
+ AF_EDGE_DONE = 1 << 2,
+ AF_EDGE_NEUTRAL = 1 << 3 /* set if edge aligns to a neutral blue zone */
} AF_Edge_Flags;
@@ -109,7 +250,7 @@ FT_BEGIN_HEADER
FT_Char out_dir; /* direction of outwards vector */
FT_Pos ox, oy; /* original, scaled position */
- FT_Short fx, fy; /* original, unscaled position (font units) */
+ FT_Short fx, fy; /* original, unscaled position (in font units) */
FT_Pos x, y; /* current position */
FT_Pos u, v; /* current (x,y) or (y,x) depending on context */
@@ -137,84 +278,80 @@ FT_BEGIN_HEADER
FT_Pos score; /* used during stem matching */
FT_Pos len; /* used during stem matching */
- AF_Point first; /* first point in edge segment */
- AF_Point last; /* last point in edge segment */
- AF_Point* contour; /* ptr to first point of segment's contour */
+ AF_Point first; /* first point in edge segment */
+ AF_Point last; /* last point in edge segment */
} AF_SegmentRec;
typedef struct AF_EdgeRec_
{
- FT_Short fpos; /* original, unscaled position (font units) */
- FT_Pos opos; /* original, scaled position */
- FT_Pos pos; /* current position */
+ FT_Short fpos; /* original, unscaled position (in font units) */
+ FT_Pos opos; /* original, scaled position */
+ FT_Pos pos; /* current position */
FT_Byte flags; /* edge flags */
FT_Char dir; /* edge direction */
FT_Fixed scale; /* used to speed up interpolation between edges */
- AF_Width blue_edge; /* non-NULL if this is a blue edge */
- AF_Edge link;
- AF_Edge serif;
- FT_Short num_linked;
+ AF_Width blue_edge; /* non-NULL if this is a blue edge */
+ AF_Edge link; /* link edge */
+ AF_Edge serif; /* primary edge for serifs */
+ FT_Short num_linked; /* number of linked edges */
+ FT_Int score; /* used during stem matching */
- FT_Int score;
-
- AF_Segment first;
- AF_Segment last;
+ AF_Segment first; /* first segment in edge */
+ AF_Segment last; /* last segment in edge */
} AF_EdgeRec;
typedef struct AF_AxisHintsRec_
{
- FT_Int num_segments;
- FT_Int max_segments;
- AF_Segment segments;
+ FT_Int num_segments; /* number of used segments */
+ FT_Int max_segments; /* number of allocated segments */
+ AF_Segment segments; /* segments array */
#ifdef AF_SORT_SEGMENTS
FT_Int mid_segments;
#endif
- FT_Int num_edges;
- FT_Int max_edges;
- AF_Edge edges;
+ FT_Int num_edges; /* number of used edges */
+ FT_Int max_edges; /* number of allocated edges */
+ AF_Edge edges; /* edges array */
- AF_Direction major_dir;
+ AF_Direction major_dir; /* either vertical or horizontal */
} AF_AxisHintsRec, *AF_AxisHints;
typedef struct AF_GlyphHintsRec_
{
- FT_Memory memory;
+ FT_Memory memory;
- FT_Fixed x_scale;
- FT_Pos x_delta;
+ FT_Fixed x_scale;
+ FT_Pos x_delta;
- FT_Fixed y_scale;
- FT_Pos y_delta;
+ FT_Fixed y_scale;
+ FT_Pos y_delta;
- FT_Pos edge_distance_threshold;
+ FT_Int max_points; /* number of allocated points */
+ FT_Int num_points; /* number of used points */
+ AF_Point points; /* points array */
- FT_Int max_points;
- FT_Int num_points;
- AF_Point points;
+ FT_Int max_contours; /* number of allocated contours */
+ FT_Int num_contours; /* number of used contours */
+ AF_Point* contours; /* contours array */
- FT_Int max_contours;
- FT_Int num_contours;
- AF_Point* contours;
+ AF_AxisHintsRec axis[AF_DIMENSION_MAX];
- AF_AxisHintsRec axis[AF_DIMENSION_MAX];
+ FT_UInt32 scaler_flags; /* copy of scaler flags */
+ FT_UInt32 other_flags; /* free for style-specific */
+ /* implementations */
+ AF_StyleMetrics metrics;
- FT_UInt32 scaler_flags; /* copy of scaler flags */
- FT_UInt32 other_flags; /* free for script-specific */
- /* implementations */
- AF_ScriptMetrics metrics;
+ FT_Pos xmin_delta; /* used for warping */
+ FT_Pos xmax_delta;
- FT_Pos xmin_delta; /* used for warping */
- FT_Pos xmax_delta;
-
} AF_GlyphHintsRec;
@@ -222,7 +359,7 @@ FT_BEGIN_HEADER
#define AF_HINTS_TEST_OTHER( h, f ) ( (h)->other_flags & (f) )
-#ifdef AF_DEBUG
+#ifdef FT_DEBUG_AUTOFIT
#define AF_HINTS_DO_HORIZONTAL( h ) \
( !_af_debug_disable_horz_hints && \
@@ -237,7 +374,7 @@ FT_BEGIN_HEADER
#define AF_HINTS_DO_BLUES( h ) ( !_af_debug_disable_blue_hints )
-#else /* !AF_DEBUG */
+#else /* !FT_DEBUG_AUTOFIT */
#define AF_HINTS_DO_HORIZONTAL( h ) \
!AF_HINTS_TEST_SCALER( h, AF_SCALER_FLAG_NO_HORIZONTAL )
@@ -250,7 +387,7 @@ FT_BEGIN_HEADER
#define AF_HINTS_DO_BLUES( h ) 1
-#endif /* !AF_DEBUG */
+#endif /* !FT_DEBUG_AUTOFIT */
FT_LOCAL( AF_Direction )
@@ -274,20 +411,13 @@ FT_BEGIN_HEADER
af_glyph_hints_init( AF_GlyphHints hints,
FT_Memory memory );
-
-
- /*
- * recompute all AF_Point in a AF_GlyphHints from the definitions
- * in a source outline
- */
FT_LOCAL( void )
- af_glyph_hints_rescale( AF_GlyphHints hints,
- AF_ScriptMetrics metrics );
+ af_glyph_hints_rescale( AF_GlyphHints hints,
+ AF_StyleMetrics metrics );
FT_LOCAL( FT_Error )
af_glyph_hints_reload( AF_GlyphHints hints,
- FT_Outline* outline,
- FT_Bool get_inflections );
+ FT_Outline* outline );
FT_LOCAL( void )
af_glyph_hints_save( AF_GlyphHints hints,
@@ -305,7 +435,7 @@ FT_BEGIN_HEADER
af_glyph_hints_align_weak_points( AF_GlyphHints hints,
AF_Dimension dim );
-#ifdef AF_USE_WARPER
+#ifdef AF_CONFIG_OPTION_USE_WARPER
FT_LOCAL( void )
af_glyph_hints_scale_dim( AF_GlyphHints hints,
AF_Dimension dim,
diff --git a/src/3rdparty/freetype/src/autofit/afindic.c b/src/3rdparty/freetype/src/autofit/afindic.c
index 1d9e9eafba..197881b614 100644
--- a/src/3rdparty/freetype/src/autofit/afindic.c
+++ b/src/3rdparty/freetype/src/autofit/afindic.c
@@ -2,9 +2,9 @@
/* */
/* afindic.c */
/* */
-/* Auto-fitter hinting routines for Indic scripts (body). */
+/* Auto-fitter hinting routines for Indic writing system (body). */
/* */
-/* Copyright 2007 by */
+/* Copyright 2007, 2011-2013 by */
/* Rahul Bhalerao <rahul.bhalerao@redhat.com>, <b.rahul.pm@gmail.com>. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -27,23 +27,42 @@
#include "afcjk.h"
-#ifdef AF_USE_WARPER
+#ifdef AF_CONFIG_OPTION_USE_WARPER
#include "afwarp.h"
#endif
static FT_Error
- af_indic_metrics_init( AF_LatinMetrics metrics,
- FT_Face face )
+ af_indic_metrics_init( AF_CJKMetrics metrics,
+ FT_Face face )
{
- /* use CJK routines */
- return af_cjk_metrics_init( metrics, face );
+ /* skip blue zone init in CJK routines */
+ FT_CharMap oldmap = face->charmap;
+
+
+ metrics->units_per_em = face->units_per_EM;
+
+ if ( FT_Select_Charmap( face, FT_ENCODING_UNICODE ) )
+ face->charmap = NULL;
+ else
+ {
+ af_cjk_metrics_init_widths( metrics, face );
+#if 0
+ /* either need indic specific blue_chars[] or just skip blue zones */
+ af_cjk_metrics_init_blues( metrics, face, af_cjk_blue_chars );
+#endif
+ af_cjk_metrics_check_digits( metrics, face );
+ }
+
+ FT_Set_Charmap( face, oldmap );
+
+ return FT_Err_Ok;
}
static void
- af_indic_metrics_scale( AF_LatinMetrics metrics,
- AF_Scaler scaler )
+ af_indic_metrics_scale( AF_CJKMetrics metrics,
+ AF_Scaler scaler )
{
/* use CJK routines */
af_cjk_metrics_scale( metrics, scaler );
@@ -51,8 +70,8 @@
static FT_Error
- af_indic_hints_init( AF_GlyphHints hints,
- AF_LatinMetrics metrics )
+ af_indic_hints_init( AF_GlyphHints hints,
+ AF_CJKMetrics metrics )
{
/* use CJK routines */
return af_cjk_hints_init( hints, metrics );
@@ -60,9 +79,9 @@
static FT_Error
- af_indic_hints_apply( AF_GlyphHints hints,
- FT_Outline* outline,
- AF_LatinMetrics metrics)
+ af_indic_hints_apply( AF_GlyphHints hints,
+ FT_Outline* outline,
+ AF_CJKMetrics metrics )
{
/* use CJK routines */
return af_cjk_hints_apply( hints, outline, metrics );
@@ -78,52 +97,41 @@
/*************************************************************************/
- static const AF_Script_UniRangeRec af_indic_uniranges[] =
- {
-#if 0
- AF_UNIRANGE_REC( 0x0100UL, 0xFFFFUL ), /* why this? */
-#endif
- AF_UNIRANGE_REC( 0x0900UL, 0x0DFFUL), /* Indic Range */
- AF_UNIRANGE_REC( 0UL, 0UL)
- };
-
+ AF_DEFINE_WRITING_SYSTEM_CLASS(
+ af_indic_writing_system_class,
- AF_DEFINE_SCRIPT_CLASS(af_indic_script_class,
- AF_SCRIPT_INDIC,
- af_indic_uniranges,
+ AF_WRITING_SYSTEM_INDIC,
- sizeof( AF_LatinMetricsRec ),
+ sizeof ( AF_CJKMetricsRec ),
- (AF_Script_InitMetricsFunc) af_indic_metrics_init,
- (AF_Script_ScaleMetricsFunc)af_indic_metrics_scale,
- (AF_Script_DoneMetricsFunc) NULL,
+ (AF_WritingSystem_InitMetricsFunc) af_indic_metrics_init,
+ (AF_WritingSystem_ScaleMetricsFunc)af_indic_metrics_scale,
+ (AF_WritingSystem_DoneMetricsFunc) NULL,
- (AF_Script_InitHintsFunc) af_indic_hints_init,
- (AF_Script_ApplyHintsFunc) af_indic_hints_apply
+ (AF_WritingSystem_InitHintsFunc) af_indic_hints_init,
+ (AF_WritingSystem_ApplyHintsFunc) af_indic_hints_apply
)
+
#else /* !AF_CONFIG_OPTION_INDIC */
- static const AF_Script_UniRangeRec af_indic_uniranges[] =
- {
- { 0, 0 }
- };
+ AF_DEFINE_WRITING_SYSTEM_CLASS(
+ af_indic_writing_system_class,
- AF_DEFINE_SCRIPT_CLASS(af_indic_script_class,
- AF_SCRIPT_INDIC,
- af_indic_uniranges,
+ AF_WRITING_SYSTEM_INDIC,
- sizeof( AF_LatinMetricsRec ),
+ sizeof ( AF_CJKMetricsRec ),
- (AF_Script_InitMetricsFunc) NULL,
- (AF_Script_ScaleMetricsFunc)NULL,
- (AF_Script_DoneMetricsFunc) NULL,
+ (AF_WritingSystem_InitMetricsFunc) NULL,
+ (AF_WritingSystem_ScaleMetricsFunc)NULL,
+ (AF_WritingSystem_DoneMetricsFunc) NULL,
- (AF_Script_InitHintsFunc) NULL,
- (AF_Script_ApplyHintsFunc) NULL
+ (AF_WritingSystem_InitHintsFunc) NULL,
+ (AF_WritingSystem_ApplyHintsFunc) NULL
)
+
#endif /* !AF_CONFIG_OPTION_INDIC */
diff --git a/src/3rdparty/freetype/src/autofit/afindic.h b/src/3rdparty/freetype/src/autofit/afindic.h
index 662a982200..9e13cf7e3f 100644
--- a/src/3rdparty/freetype/src/autofit/afindic.h
+++ b/src/3rdparty/freetype/src/autofit/afindic.h
@@ -2,9 +2,10 @@
/* */
/* afindic.h */
/* */
-/* Auto-fitter hinting routines for Indic scripts (specification). */
+/* Auto-fitter hinting routines for Indic writing system */
+/* (specification). */
/* */
-/* Copyright 2007 by */
+/* Copyright 2007, 2012, 2013 by */
/* Rahul Bhalerao <rahul.bhalerao@redhat.com>, <b.rahul.pm@gmail.com>. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -25,9 +26,9 @@
FT_BEGIN_HEADER
- /* the Indic-specific script class */
+ /* the `indic' writing system */
- AF_DECLARE_SCRIPT_CLASS(af_indic_script_class)
+ AF_DECLARE_WRITING_SYSTEM_CLASS( af_indic_writing_system_class )
/* */
diff --git a/src/3rdparty/freetype/src/autofit/aflatin.c b/src/3rdparty/freetype/src/autofit/aflatin.c
index e6882d5e7b..36a36896fb 100644
--- a/src/3rdparty/freetype/src/autofit/aflatin.c
+++ b/src/3rdparty/freetype/src/autofit/aflatin.c
@@ -2,9 +2,9 @@
/* */
/* aflatin.c */
/* */
-/* Auto-fitter hinting routines for latin script (body). */
+/* Auto-fitter hinting routines for latin writing system (body). */
/* */
-/* Copyright 2003, 2004, 2005, 2006, 2007, 2008, 2009 by */
+/* Copyright 2003-2014 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -18,17 +18,30 @@
#include <ft2build.h>
#include FT_ADVANCES_H
+#include FT_INTERNAL_DEBUG_H
+#include "afglobal.h"
+#include "afpic.h"
#include "aflatin.h"
#include "aferrors.h"
-#ifdef AF_USE_WARPER
+#ifdef AF_CONFIG_OPTION_USE_WARPER
#include "afwarp.h"
#endif
/*************************************************************************/
+ /* */
+ /* The macro FT_COMPONENT is used in trace mode. It is an implicit */
+ /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */
+ /* messages during execution. */
+ /* */
+#undef FT_COMPONENT
+#define FT_COMPONENT trace_aflatin
+
+
+ /*************************************************************************/
/*************************************************************************/
/***** *****/
/***** L A T I N G L O B A L M E T R I C S *****/
@@ -36,31 +49,91 @@
/*************************************************************************/
/*************************************************************************/
+
+ /* Find segments and links, compute all stem widths, and initialize */
+ /* standard width and height for the glyph with given charcode. */
+
FT_LOCAL_DEF( void )
af_latin_metrics_init_widths( AF_LatinMetrics metrics,
- FT_Face face,
- FT_ULong charcode )
+ FT_Face face )
{
/* scan the array of segments in each direction */
AF_GlyphHintsRec hints[1];
+ FT_TRACE5(( "\n"
+ "latin standard widths computation (style `%s')\n"
+ "=====================================================\n"
+ "\n",
+ af_style_names[metrics->root.style_class->style] ));
+
af_glyph_hints_init( hints, face->memory );
metrics->axis[AF_DIMENSION_HORZ].width_count = 0;
metrics->axis[AF_DIMENSION_VERT].width_count = 0;
{
- FT_Error error;
- FT_UInt glyph_index;
- int dim;
- AF_LatinMetricsRec dummy[1];
- AF_Scaler scaler = &dummy->root.scaler;
+ FT_Error error;
+ FT_ULong glyph_index;
+ FT_Long y_offset;
+ int dim;
+ AF_LatinMetricsRec dummy[1];
+ AF_Scaler scaler = &dummy->root.scaler;
+
+#ifdef FT_CONFIG_OPTION_PIC
+ AF_FaceGlobals globals = metrics->root.globals;
+#endif
+ AF_StyleClass style_class = metrics->root.style_class;
+ AF_ScriptClass script_class = AF_SCRIPT_CLASSES_GET
+ [style_class->script];
- glyph_index = FT_Get_Char_Index( face, charcode );
- if ( glyph_index == 0 )
- goto Exit;
+ FT_UInt32 standard_char;
+
+
+ /*
+ * We check more than a single standard character to catch features
+ * like `c2sc' (small caps from caps) that don't contain lowercase
+ * letters by definition, or other features that mainly operate on
+ * numerals.
+ */
+
+ standard_char = script_class->standard_char1;
+ af_get_char_index( &metrics->root,
+ standard_char,
+ &glyph_index,
+ &y_offset );
+ if ( !glyph_index )
+ {
+ if ( script_class->standard_char2 )
+ {
+ standard_char = script_class->standard_char2;
+ af_get_char_index( &metrics->root,
+ standard_char,
+ &glyph_index,
+ &y_offset );
+ if ( !glyph_index )
+ {
+ if ( script_class->standard_char3 )
+ {
+ standard_char = script_class->standard_char3;
+ af_get_char_index( &metrics->root,
+ standard_char,
+ &glyph_index,
+ &y_offset );
+ if ( !glyph_index )
+ goto Exit;
+ }
+ else
+ goto Exit;
+ }
+ }
+ else
+ goto Exit;
+ }
+
+ FT_TRACE5(( "standard character: U+%04lX (glyph index %d)\n",
+ standard_char, glyph_index ));
error = FT_Load_Glyph( face, glyph_index, FT_LOAD_NO_SCALE );
if ( error || face->glyph->outline.n_points <= 0 )
@@ -69,15 +142,19 @@
FT_ZERO( dummy );
dummy->units_per_em = metrics->units_per_em;
- scaler->x_scale = scaler->y_scale = 0x10000L;
- scaler->x_delta = scaler->y_delta = 0;
+
+ scaler->x_scale = 0x10000L;
+ scaler->y_scale = 0x10000L;
+ scaler->x_delta = 0;
+ scaler->y_delta = 0;
+
scaler->face = face;
scaler->render_mode = FT_RENDER_MODE_NORMAL;
scaler->flags = 0;
- af_glyph_hints_rescale( hints, (AF_ScriptMetrics)dummy );
+ af_glyph_hints_rescale( hints, (AF_StyleMetrics)dummy );
- error = af_glyph_hints_reload( hints, &face->glyph->outline, 0 );
+ error = af_glyph_hints_reload( hints, &face->glyph->outline );
if ( error )
goto Exit;
@@ -94,7 +171,15 @@
if ( error )
goto Exit;
+ /*
+ * We assume that the glyphs selected for the stem width
+ * computation are `featureless' enough so that the linking
+ * algorithm works fine without adjustments of its scoring
+ * function.
+ */
af_latin_hints_link_segments( hints,
+ 0,
+ NULL,
(AF_Dimension)dim );
seg = axhints->segments;
@@ -115,113 +200,180 @@
dist = -dist;
if ( num_widths < AF_LATIN_MAX_WIDTHS )
- axis->widths[ num_widths++ ].org = dist;
+ axis->widths[num_widths++].org = dist;
}
}
- af_sort_widths( num_widths, axis->widths );
+ /* this also replaces multiple almost identical stem widths */
+ /* with a single one (the value 100 is heuristic) */
+ af_sort_and_quantize_widths( &num_widths, axis->widths,
+ dummy->units_per_em / 100 );
axis->width_count = num_widths;
}
- Exit:
+ Exit:
for ( dim = 0; dim < AF_DIMENSION_MAX; dim++ )
{
AF_LatinAxis axis = &metrics->axis[dim];
FT_Pos stdw;
- stdw = ( axis->width_count > 0 )
- ? axis->widths[0].org
- : AF_LATIN_CONSTANT( metrics, 50 );
+ stdw = ( axis->width_count > 0 ) ? axis->widths[0].org
+ : AF_LATIN_CONSTANT( metrics, 50 );
/* let's try 20% of the smallest width */
axis->edge_distance_threshold = stdw / 5;
axis->standard_width = stdw;
axis->extra_light = 0;
- }
- }
- af_glyph_hints_done( hints );
- }
+#ifdef FT_DEBUG_LEVEL_TRACE
+ {
+ FT_UInt i;
+ FT_TRACE5(( "%s widths:\n",
+ dim == AF_DIMENSION_VERT ? "horizontal"
+ : "vertical" ));
-#define AF_LATIN_MAX_TEST_CHARACTERS 12
+ FT_TRACE5(( " %d (standard)", axis->standard_width ));
+ for ( i = 1; i < axis->width_count; i++ )
+ FT_TRACE5(( " %d", axis->widths[i].org ));
+ FT_TRACE5(( "\n" ));
+ }
+#endif
+ }
+ }
+
+ FT_TRACE5(( "\n" ));
+
+ af_glyph_hints_done( hints );
+ }
- static const char af_latin_blue_chars[AF_LATIN_MAX_BLUES]
- [AF_LATIN_MAX_TEST_CHARACTERS + 1] =
- {
- "THEZOCQS",
- "HEZLOCUS",
- "fijkdbh",
- "xzroesc",
- "xzroesc",
- "pqgjy"
- };
+ /* Find all blue zones. Flat segments give the reference points, */
+ /* round segments the overshoot positions. */
static void
af_latin_metrics_init_blues( AF_LatinMetrics metrics,
FT_Face face )
{
- FT_Pos flats [AF_LATIN_MAX_TEST_CHARACTERS];
- FT_Pos rounds[AF_LATIN_MAX_TEST_CHARACTERS];
+ FT_Pos flats [AF_BLUE_STRING_MAX_LEN];
+ FT_Pos rounds[AF_BLUE_STRING_MAX_LEN];
+
FT_Int num_flats;
FT_Int num_rounds;
- FT_Int bb;
+
AF_LatinBlue blue;
FT_Error error;
- AF_LatinAxis axis = &metrics->axis[AF_DIMENSION_VERT];
- FT_GlyphSlot glyph = face->glyph;
+ AF_LatinAxis axis = &metrics->axis[AF_DIMENSION_VERT];
+ FT_Outline outline;
+
+ AF_StyleClass sc = metrics->root.style_class;
+ AF_Blue_Stringset bss = sc->blue_stringset;
+ const AF_Blue_StringRec* bs = &af_blue_stringsets[bss];
- /* we compute the blues simply by loading each character from the */
- /* 'af_latin_blue_chars[blues]' string, then compute its top-most or */
- /* bottom-most points (depending on `AF_IS_TOP_BLUE') */
- AF_LOG(( "blue zones computation\n" ));
- AF_LOG(( "------------------------------------------------\n" ));
+ /* we walk over the blue character strings as specified in the */
+ /* style's entry in the `af_blue_stringset' array */
- for ( bb = 0; bb < AF_LATIN_BLUE_MAX; bb++ )
+ FT_TRACE5(( "latin blue zones computation\n"
+ "============================\n"
+ "\n" ));
+
+ for ( ; bs->string != AF_BLUE_STRING_MAX; bs++ )
{
- const char* p = af_latin_blue_chars[bb];
- const char* limit = p + AF_LATIN_MAX_TEST_CHARACTERS;
+ const char* p = &af_blue_strings[bs->string];
FT_Pos* blue_ref;
FT_Pos* blue_shoot;
- AF_LOG(( "blue %3d: ", bb ));
+#ifdef FT_DEBUG_LEVEL_TRACE
+ {
+ FT_Bool have_flag = 0;
+
+
+ FT_TRACE5(( "blue zone %d", axis->blue_count ));
+
+ if ( bs->properties )
+ {
+ FT_TRACE5(( " (" ));
+
+ if ( AF_LATIN_IS_TOP_BLUE( bs ) )
+ {
+ FT_TRACE5(( "top" ));
+ have_flag = 1;
+ }
+
+ if ( AF_LATIN_IS_NEUTRAL_BLUE( bs ) )
+ {
+ if ( have_flag )
+ FT_TRACE5(( ", " ));
+ FT_TRACE5(( "neutral" ));
+ have_flag = 1;
+ }
+
+ if ( AF_LATIN_IS_X_HEIGHT_BLUE( bs ) )
+ {
+ if ( have_flag )
+ FT_TRACE5(( ", " ));
+ FT_TRACE5(( "small top" ));
+ have_flag = 1;
+ }
+
+ if ( AF_LATIN_IS_LONG_BLUE( bs ) )
+ {
+ if ( have_flag )
+ FT_TRACE5(( ", " ));
+ FT_TRACE5(( "long" ));
+ }
+
+ FT_TRACE5(( ")" ));
+ }
+
+ FT_TRACE5(( ":\n" ));
+ }
+#endif /* FT_DEBUG_LEVEL_TRACE */
num_flats = 0;
num_rounds = 0;
- for ( ; p < limit && *p; p++ )
+ while ( *p )
{
- FT_UInt glyph_index;
- FT_Pos best_y; /* same as points.y */
- FT_Int best_point, best_first, best_last;
+ FT_ULong ch;
+ FT_ULong glyph_index;
+ FT_Long y_offset;
+ FT_Pos best_y; /* same as points.y */
+ FT_Int best_point, best_contour_first, best_contour_last;
FT_Vector* points;
FT_Bool round = 0;
- AF_LOG(( "'%c'", *p ));
+ GET_UTF8_CHAR( ch, p );
/* load the character in the face -- skip unknown or empty ones */
- glyph_index = FT_Get_Char_Index( face, (FT_UInt)*p );
+ af_get_char_index( &metrics->root, ch, &glyph_index, &y_offset );
if ( glyph_index == 0 )
+ {
+ FT_TRACE5(( " U+%04lX unavailable\n", ch ));
continue;
+ }
- error = FT_Load_Glyph( face, glyph_index, FT_LOAD_NO_SCALE );
- if ( error || glyph->outline.n_points <= 0 )
+ error = FT_Load_Glyph( face, glyph_index, FT_LOAD_NO_SCALE );
+ outline = face->glyph->outline;
+ if ( error || outline.n_points <= 0 )
+ {
+ FT_TRACE5(( " U+%04lX contains no outlines\n", ch ));
continue;
+ }
/* now compute min or max point indices and coordinates */
- points = glyph->outline.points;
- best_point = -1;
- best_y = 0; /* make compiler happy */
- best_first = 0; /* ditto */
- best_last = 0; /* ditto */
+ points = outline.points;
+ best_point = -1;
+ best_y = 0; /* make compiler happy */
+ best_contour_first = 0; /* ditto */
+ best_contour_last = 0; /* ditto */
{
FT_Int nn;
@@ -229,21 +381,21 @@
FT_Int last = -1;
- for ( nn = 0; nn < glyph->outline.n_contours; first = last+1, nn++ )
+ for ( nn = 0; nn < outline.n_contours; first = last + 1, nn++ )
{
FT_Int old_best_point = best_point;
FT_Int pp;
- last = glyph->outline.contours[nn];
+ last = outline.contours[nn];
/* Avoid single-point contours since they are never rasterized. */
/* In some fonts, they correspond to mark attachment points */
- /* which are way outside of the glyph's real outline. */
+ /* that are way outside of the glyph's real outline. */
if ( last <= first )
- continue;
+ continue;
- if ( AF_LATIN_IS_TOP_BLUE( bb ) )
+ if ( AF_LATIN_IS_TOP_BLUE( bs ) )
{
for ( pp = first; pp <= last; pp++ )
if ( best_point < 0 || points[pp].y > best_y )
@@ -264,11 +416,10 @@
if ( best_point != old_best_point )
{
- best_first = first;
- best_last = last;
+ best_contour_first = first;
+ best_contour_last = last;
}
}
- AF_LOG(( "%5d", best_y ));
}
/* now check whether the point belongs to a straight or round */
@@ -276,47 +427,297 @@
/* lies, then inspect its previous and next points */
if ( best_point >= 0 )
{
+ FT_Pos best_x = points[best_point].x;
FT_Int prev, next;
+ FT_Int best_segment_first, best_segment_last;
+ FT_Int best_on_point_first, best_on_point_last;
FT_Pos dist;
- /* now look for the previous and next points that are not on the */
- /* same Y coordinate. Threshold the `closeness'... */
+ best_segment_first = best_point;
+ best_segment_last = best_point;
+
+ if ( FT_CURVE_TAG( outline.tags[best_point] ) == FT_CURVE_TAG_ON )
+ {
+ best_on_point_first = best_point;
+ best_on_point_last = best_point;
+ }
+ else
+ {
+ best_on_point_first = -1;
+ best_on_point_last = -1;
+ }
+
+ /* look for the previous and next points on the contour */
+ /* that are not on the same Y coordinate, then threshold */
+ /* the `closeness'... */
prev = best_point;
next = prev;
do
{
- if ( prev > best_first )
+ if ( prev > best_contour_first )
prev--;
else
- prev = best_last;
+ prev = best_contour_last;
- dist = points[prev].y - best_y;
- if ( dist < -5 || dist > 5 )
- break;
+ dist = FT_ABS( points[prev].y - best_y );
+ /* accept a small distance or a small angle (both values are */
+ /* heuristic; value 20 corresponds to approx. 2.9 degrees) */
+ if ( dist > 5 )
+ if ( FT_ABS( points[prev].x - best_x ) <= 20 * dist )
+ break;
+
+ best_segment_first = prev;
+
+ if ( FT_CURVE_TAG( outline.tags[prev] ) == FT_CURVE_TAG_ON )
+ {
+ best_on_point_first = prev;
+ if ( best_on_point_last < 0 )
+ best_on_point_last = prev;
+ }
} while ( prev != best_point );
do
{
- if ( next < best_last )
+ if ( next < best_contour_last )
next++;
else
- next = best_first;
+ next = best_contour_first;
- dist = points[next].y - best_y;
- if ( dist < -5 || dist > 5 )
- break;
+ dist = FT_ABS( points[next].y - best_y );
+ if ( dist > 5 )
+ if ( FT_ABS( points[next].x - best_x ) <= 20 * dist )
+ break;
+
+ best_segment_last = next;
+
+ if ( FT_CURVE_TAG( outline.tags[next] ) == FT_CURVE_TAG_ON )
+ {
+ best_on_point_last = next;
+ if ( best_on_point_first < 0 )
+ best_on_point_first = next;
+ }
} while ( next != best_point );
- /* now, set the `round' flag depending on the segment's kind */
- round = FT_BOOL(
- FT_CURVE_TAG( glyph->outline.tags[prev] ) != FT_CURVE_TAG_ON ||
- FT_CURVE_TAG( glyph->outline.tags[next] ) != FT_CURVE_TAG_ON );
+ if ( AF_LATIN_IS_LONG_BLUE( bs ) )
+ {
+ /* If this flag is set, we have an additional constraint to */
+ /* get the blue zone distance: Find a segment of the topmost */
+ /* (or bottommost) contour that is longer than a heuristic */
+ /* threshold. This ensures that small bumps in the outline */
+ /* are ignored (for example, the `vertical serifs' found in */
+ /* many Hebrew glyph designs). */
+
+ /* If this segment is long enough, we are done. Otherwise, */
+ /* search the segment next to the extremum that is long */
+ /* enough, has the same direction, and a not too large */
+ /* vertical distance from the extremum. Note that the */
+ /* algorithm doesn't check whether the found segment is */
+ /* actually the one (vertically) nearest to the extremum. */
+
+ /* heuristic threshold value */
+ FT_Pos length_threshold = metrics->units_per_em / 25;
+
+
+ dist = FT_ABS( points[best_segment_last].x -
+ points[best_segment_first].x );
+
+ if ( dist < length_threshold &&
+ best_segment_last - best_segment_first + 2 <=
+ best_contour_last - best_contour_first )
+ {
+ /* heuristic threshold value */
+ FT_Pos height_threshold = metrics->units_per_em / 4;
+
+ FT_Int first;
+ FT_Int last;
+ FT_Bool hit;
+
+ /* we intentionally declare these two variables */
+ /* outside of the loop since various compilers emit */
+ /* incorrect warning messages otherwise, talking about */
+ /* `possibly uninitialized variables' */
+ FT_Int p_first = 0; /* make compiler happy */
+ FT_Int p_last = 0;
+
+ FT_Bool left2right;
+
+
+ /* compute direction */
+ prev = best_point;
+
+ do
+ {
+ if ( prev > best_contour_first )
+ prev--;
+ else
+ prev = best_contour_last;
+
+ if ( points[prev].x != best_x )
+ break;
+
+ } while ( prev != best_point );
+
+ /* skip glyph for the degenerate case */
+ if ( prev == best_point )
+ continue;
+
+ left2right = FT_BOOL( points[prev].x < points[best_point].x );
+
+ first = best_segment_last;
+ last = first;
+ hit = 0;
+
+ do
+ {
+ FT_Bool l2r;
+ FT_Pos d;
+
+
+ if ( !hit )
+ {
+ /* no hit; adjust first point */
+ first = last;
+
+ /* also adjust first and last on point */
+ if ( FT_CURVE_TAG( outline.tags[first] ) ==
+ FT_CURVE_TAG_ON )
+ {
+ p_first = first;
+ p_last = first;
+ }
+ else
+ {
+ p_first = -1;
+ p_last = -1;
+ }
+
+ hit = 1;
+ }
+
+ if ( last < best_contour_last )
+ last++;
+ else
+ last = best_contour_first;
+
+ if ( FT_ABS( best_y - points[first].y ) > height_threshold )
+ {
+ /* vertical distance too large */
+ hit = 0;
+ continue;
+ }
+
+ /* same test as above */
+ dist = FT_ABS( points[last].y - points[first].y );
+ if ( dist > 5 )
+ if ( FT_ABS( points[last].x - points[first].x ) <=
+ 20 * dist )
+ {
+ hit = 0;
+ continue;
+ }
+
+ if ( FT_CURVE_TAG( outline.tags[last] ) == FT_CURVE_TAG_ON )
+ {
+ p_last = last;
+ if ( p_first < 0 )
+ p_first = last;
+ }
+
+ l2r = FT_BOOL( points[first].x < points[last].x );
+ d = FT_ABS( points[last].x - points[first].x );
+
+ if ( l2r == left2right &&
+ d >= length_threshold )
+ {
+ /* all constraints are met; update segment after finding */
+ /* its end */
+ do
+ {
+ if ( last < best_contour_last )
+ last++;
+ else
+ last = best_contour_first;
+
+ d = FT_ABS( points[last].y - points[first].y );
+ if ( d > 5 )
+ if ( FT_ABS( points[next].x - points[first].x ) <=
+ 20 * dist )
+ {
+ if ( last > best_contour_first )
+ last--;
+ else
+ last = best_contour_last;
+ break;
+ }
+
+ p_last = last;
+
+ if ( FT_CURVE_TAG( outline.tags[last] ) ==
+ FT_CURVE_TAG_ON )
+ {
+ p_last = last;
+ if ( p_first < 0 )
+ p_first = last;
+ }
+
+ } while ( last != best_segment_first );
+
+ best_y = points[first].y;
+
+ best_segment_first = first;
+ best_segment_last = last;
+
+ best_on_point_first = p_first;
+ best_on_point_last = p_last;
+
+ break;
+ }
+
+ } while ( last != best_segment_first );
+ }
+ }
+
+ /* for computing blue zones, we add the y offset as returned */
+ /* by the currently used OpenType feature -- for example, */
+ /* superscript glyphs might be identical to subscript glyphs */
+ /* with a vertical shift */
+ best_y += y_offset;
+
+ FT_TRACE5(( " U+%04lX: best_y = %5ld", ch, best_y ));
+
+ /* now set the `round' flag depending on the segment's kind: */
+ /* */
+ /* - if the horizontal distance between the first and last */
+ /* `on' point is larger than upem/8 (value 8 is heuristic) */
+ /* we have a flat segment */
+ /* - if either the first or the last point of the segment is */
+ /* an `off' point, the segment is round, otherwise it is */
+ /* flat */
+ if ( best_on_point_first >= 0 &&
+ best_on_point_last >= 0 &&
+ (FT_UInt)( FT_ABS( points[best_on_point_last].x -
+ points[best_on_point_first].x ) ) >
+ metrics->units_per_em / 8 )
+ round = 0;
+ else
+ round = FT_BOOL(
+ FT_CURVE_TAG( outline.tags[best_segment_first] ) !=
+ FT_CURVE_TAG_ON ||
+ FT_CURVE_TAG( outline.tags[best_segment_last] ) !=
+ FT_CURVE_TAG_ON );
- AF_LOG(( "%c ", round ? 'r' : 'f' ));
+ if ( round && AF_LATIN_IS_NEUTRAL_BLUE( bs ) )
+ {
+ /* only use flat segments for a neutral blue zone */
+ FT_TRACE5(( " (round, skipped)\n" ));
+ continue;
+ }
+
+ FT_TRACE5(( " (%s)\n", round ? "round" : "flat" ));
}
if ( round )
@@ -325,15 +726,13 @@
flats[num_flats++] = best_y;
}
- AF_LOG(( "\n" ));
-
if ( num_flats == 0 && num_rounds == 0 )
{
/*
* we couldn't find a single glyph to compute this blue zone,
* we will simply ignore it then
*/
- AF_LOG(( "empty\n" ));
+ FT_TRACE5(( " empty\n" ));
continue;
}
@@ -343,9 +742,9 @@
af_sort_pos( num_rounds, rounds );
af_sort_pos( num_flats, flats );
- blue = & axis->blues[axis->blue_count];
- blue_ref = & blue->ref.org;
- blue_shoot = & blue->shoot.org;
+ blue = &axis->blues[axis->blue_count];
+ blue_ref = &blue->ref.org;
+ blue_shoot = &blue->shoot.org;
axis->blue_count++;
@@ -361,7 +760,7 @@
}
else
{
- *blue_ref = flats[num_flats / 2];
+ *blue_ref = flats [num_flats / 2];
*blue_shoot = rounds[num_rounds / 2];
}
@@ -375,29 +774,43 @@
FT_Bool over_ref = FT_BOOL( shoot > ref );
- if ( AF_LATIN_IS_TOP_BLUE( bb ) ^ over_ref )
- *blue_shoot = *blue_ref = ( shoot + ref ) / 2;
+ if ( AF_LATIN_IS_TOP_BLUE( bs ) ^ over_ref )
+ {
+ *blue_ref =
+ *blue_shoot = ( shoot + ref ) / 2;
+
+ FT_TRACE5(( " [overshoot smaller than reference,"
+ " taking mean value]\n" ));
+ }
}
blue->flags = 0;
- if ( AF_LATIN_IS_TOP_BLUE( bb ) )
+ if ( AF_LATIN_IS_TOP_BLUE( bs ) )
blue->flags |= AF_LATIN_BLUE_TOP;
+ if ( AF_LATIN_IS_NEUTRAL_BLUE( bs ) )
+ blue->flags |= AF_LATIN_BLUE_NEUTRAL;
/*
* The following flag is used later to adjust the y and x scales
* in order to optimize the pixel grid alignment of the top of small
* letters.
*/
- if ( bb == AF_LATIN_BLUE_SMALL_TOP )
+ if ( AF_LATIN_IS_X_HEIGHT_BLUE( bs ) )
blue->flags |= AF_LATIN_BLUE_ADJUSTMENT;
- AF_LOG(( "-- ref = %ld, shoot = %ld\n", *blue_ref, *blue_shoot ));
+ FT_TRACE5(( " -> reference = %ld\n"
+ " overshoot = %ld\n",
+ *blue_ref, *blue_shoot ));
}
+ FT_TRACE5(( "\n" ));
+
return;
}
+ /* Check whether all ASCII digits have the same advance width. */
+
FT_LOCAL_DEF( void )
af_latin_metrics_check_digits( AF_LatinMetrics metrics,
FT_Face face )
@@ -407,14 +820,14 @@
FT_Fixed advance, old_advance = 0;
- /* check whether all ASCII digits have the same advance width; */
- /* digit `0' is 0x30 in all supported charmaps */
+ /* digit `0' is 0x30 in all supported charmaps */
for ( i = 0x30; i <= 0x39; i++ )
{
- FT_UInt glyph_index;
+ FT_ULong glyph_index;
+ FT_Long y_offset;
- glyph_index = FT_Get_Char_Index( face, i );
+ af_get_char_index( &metrics->root, i, &glyph_index, &y_offset );
if ( glyph_index == 0 )
continue;
@@ -444,47 +857,32 @@
}
+ /* Initialize global metrics. */
+
FT_LOCAL_DEF( FT_Error )
af_latin_metrics_init( AF_LatinMetrics metrics,
FT_Face face )
{
- FT_Error error = AF_Err_Ok;
FT_CharMap oldmap = face->charmap;
- FT_UInt ee;
-
- static const FT_Encoding latin_encodings[] =
- {
- FT_ENCODING_UNICODE,
- FT_ENCODING_APPLE_ROMAN,
- FT_ENCODING_ADOBE_STANDARD,
- FT_ENCODING_ADOBE_LATIN_1,
- FT_ENCODING_NONE /* end of list */
- };
metrics->units_per_em = face->units_per_EM;
- /* do we have a latin charmap in there? */
- for ( ee = 0; latin_encodings[ee] != FT_ENCODING_NONE; ee++ )
- {
- error = FT_Select_Charmap( face, latin_encodings[ee] );
- if ( !error )
- break;
- }
-
- if ( !error )
+ if ( !FT_Select_Charmap( face, FT_ENCODING_UNICODE ) )
{
- /* For now, compute the standard width and height from the `o'. */
- af_latin_metrics_init_widths( metrics, face, 'o' );
+ af_latin_metrics_init_widths( metrics, face );
af_latin_metrics_init_blues( metrics, face );
af_latin_metrics_check_digits( metrics, face );
}
FT_Set_Charmap( face, oldmap );
- return AF_Err_Ok;
+ return FT_Err_Ok;
}
+ /* Adjust scaling value, then scale and shift widths */
+ /* and blue zones (if applicable) for given dimension. */
+
static void
af_latin_metrics_scale_dim( AF_LatinMetrics metrics,
AF_Scaler scaler,
@@ -535,9 +933,26 @@
if ( blue )
{
- FT_Pos scaled = FT_MulFix( blue->shoot.org, scaler->y_scale );
- FT_Pos fitted = ( scaled + 40 ) & ~63;
+ FT_Pos scaled;
+ FT_Pos threshold;
+ FT_Pos fitted;
+ FT_UInt limit;
+ FT_UInt ppem;
+
+
+ scaled = FT_MulFix( blue->shoot.org, scaler->y_scale );
+ ppem = metrics->root.scaler.face->size->metrics.x_ppem;
+ limit = metrics->root.globals->increase_x_height;
+ threshold = 40;
+ /* if the `increase-x-height' property is active, */
+ /* we round up much more often */
+ if ( limit &&
+ ppem <= limit &&
+ ppem >= AF_PROP_INCREASE_X_HEIGHT_MIN )
+ threshold = 52;
+
+ fitted = ( scaled + threshold ) & ~63;
if ( scaled != fitted )
{
@@ -552,6 +967,17 @@
if ( dim == AF_DIMENSION_VERT )
{
scale = FT_MulDiv( scale, fitted, scaled );
+
+ FT_TRACE5((
+ "af_latin_metrics_scale_dim:"
+ " x height alignment (style `%s'):\n"
+ " "
+ " vertical scaling changed from %.4f to %.4f (by %d%%)\n"
+ "\n",
+ af_style_names[metrics->root.style_class->style],
+ axis->org_scale / 65536.0,
+ scale / 65536.0,
+ ( fitted - scaled ) * 100 / scaled ));
}
}
}
@@ -571,7 +997,11 @@
metrics->root.scaler.y_delta = delta;
}
- /* scale the standard widths */
+ FT_TRACE5(( "%s widths (style `%s')\n",
+ dim == AF_DIMENSION_HORZ ? "horizontal" : "vertical",
+ af_style_names[metrics->root.style_class->style] ));
+
+ /* scale the widths */
for ( nn = 0; nn < axis->width_count; nn++ )
{
AF_Width width = axis->widths + nn;
@@ -579,15 +1009,31 @@
width->cur = FT_MulFix( width->org, scale );
width->fit = width->cur;
+
+ FT_TRACE5(( " %d scaled to %.2f\n",
+ width->org,
+ width->cur / 64.0 ));
}
+ FT_TRACE5(( "\n" ));
+
/* an extra-light axis corresponds to a standard width that is */
- /* smaller than 0.75 pixels */
+ /* smaller than 5/8 pixels */
axis->extra_light =
(FT_Bool)( FT_MulFix( axis->standard_width, scale ) < 32 + 8 );
+#ifdef FT_DEBUG_LEVEL_TRACE
+ if ( axis->extra_light )
+ FT_TRACE5(( "`%s' style is extra light (at current resolution)\n"
+ "\n",
+ af_style_names[metrics->root.style_class->style] ));
+#endif
+
if ( dim == AF_DIMENSION_VERT )
{
+ FT_TRACE5(( "blue zones (style `%s')\n",
+ af_style_names[metrics->root.style_class->style] ));
+
/* scale the blue zones */
for ( nn = 0; nn < axis->blue_count; nn++ )
{
@@ -605,9 +1051,17 @@
dist = FT_MulFix( blue->ref.org - blue->shoot.org, scale );
if ( dist <= 48 && dist >= -48 )
{
- FT_Pos delta1, delta2;
+#if 0
+ FT_Pos delta1;
+#endif
+ FT_Pos delta2;
+
+ /* use discrete values for blue zone widths */
+#if 0
+
+ /* generic, original code */
delta1 = blue->shoot.org - blue->ref.org;
delta2 = delta1;
if ( delta1 < 0 )
@@ -628,19 +1082,57 @@
blue->ref.fit = FT_PIX_ROUND( blue->ref.cur );
blue->shoot.fit = blue->ref.fit + delta2;
+#else
+
+ /* simplified version due to abs(dist) <= 48 */
+ delta2 = dist;
+ if ( dist < 0 )
+ delta2 = -delta2;
+
+ if ( delta2 < 32 )
+ delta2 = 0;
+ else if ( delta2 < 48 )
+ delta2 = 32;
+ else
+ delta2 = 64;
+
+ if ( dist < 0 )
+ delta2 = -delta2;
+
+ blue->ref.fit = FT_PIX_ROUND( blue->ref.cur );
+ blue->shoot.fit = blue->ref.fit - delta2;
+
+#endif
+
blue->flags |= AF_LATIN_BLUE_ACTIVE;
+
+ FT_TRACE5(( " reference %d: %d scaled to %.2f%s\n"
+ " overshoot %d: %d scaled to %.2f%s\n",
+ nn,
+ blue->ref.org,
+ blue->ref.fit / 64.0,
+ blue->flags & AF_LATIN_BLUE_ACTIVE ? ""
+ : " (inactive)",
+ nn,
+ blue->shoot.org,
+ blue->shoot.fit / 64.0,
+ blue->flags & AF_LATIN_BLUE_ACTIVE ? ""
+ : " (inactive)" ));
}
}
}
}
+ /* Scale global values in both directions. */
+
FT_LOCAL_DEF( void )
af_latin_metrics_scale( AF_LatinMetrics metrics,
AF_Scaler scaler )
{
metrics->root.scaler.render_mode = scaler->render_mode;
metrics->root.scaler.face = scaler->face;
+ metrics->root.scaler.flags = scaler->flags;
af_latin_metrics_scale_dim( metrics, scaler, AF_DIMENSION_HORZ );
af_latin_metrics_scale_dim( metrics, scaler, AF_DIMENSION_VERT );
@@ -655,18 +1147,21 @@
/*************************************************************************/
/*************************************************************************/
+
+ /* Walk over all contours and compute its segments. */
+
FT_LOCAL_DEF( FT_Error )
af_latin_hints_compute_segments( AF_GlyphHints hints,
AF_Dimension dim )
{
- AF_AxisHints axis = &hints->axis[dim];
- FT_Memory memory = hints->memory;
- FT_Error error = AF_Err_Ok;
- AF_Segment segment = NULL;
- AF_SegmentRec seg0;
- AF_Point* contour = hints->contours;
- AF_Point* contour_limit = contour + hints->num_contours;
- AF_Direction major_dir, segment_dir;
+ AF_AxisHints axis = &hints->axis[dim];
+ FT_Memory memory = hints->memory;
+ FT_Error error = FT_Err_Ok;
+ AF_Segment segment = NULL;
+ AF_SegmentRec seg0;
+ AF_Point* contour = hints->contours;
+ AF_Point* contour_limit = contour + hints->num_contours;
+ AF_Direction major_dir, segment_dir;
FT_ZERO( &seg0 );
@@ -762,7 +1257,7 @@
/* a segment is round if either its first or last point */
/* is a control point */
if ( ( segment->first->flags | point->flags ) &
- AF_FLAG_CONTROL )
+ AF_FLAG_CONTROL )
segment->flags |= AF_EDGE_ROUND;
/* compute segment size */
@@ -781,7 +1276,7 @@
on_edge = 0;
segment = NULL;
- /* fallthrough */
+ /* fall through */
}
}
@@ -798,18 +1293,19 @@
/* this is the start of a new segment! */
segment_dir = (AF_Direction)point->out_dir;
- /* clear all segment fields */
error = af_axis_hints_new_segment( axis, memory, &segment );
if ( error )
goto Exit;
- segment[0] = seg0;
+ /* clear all segment fields */
+ segment[0] = seg0;
+
segment->dir = (FT_Char)segment_dir;
min_pos = max_pos = point->u;
segment->first = point;
segment->last = point;
- segment->contour = contour;
- on_edge = 1;
+
+ on_edge = 1;
}
point = point->next;
@@ -818,8 +1314,8 @@
} /* contours */
- /* now slightly increase the height of segments when this makes */
- /* sense -- this is used to better detect and ignore serifs */
+ /* now slightly increase the height of segments if this makes */
+ /* sense -- this is used to better detect and ignore serifs */
{
AF_Segment segments = axis->segments;
AF_Segment segments_end = segments + axis->num_segments;
@@ -833,9 +1329,6 @@
FT_Pos last_v = last->v;
- if ( first == last )
- continue;
-
if ( first_v < last_v )
{
AF_Point p;
@@ -874,76 +1367,129 @@
}
+ /* Link segments to form stems and serifs. If `width_count' and */
+ /* `widths' are non-zero, use them to fine-tune the scoring function. */
+
FT_LOCAL_DEF( void )
af_latin_hints_link_segments( AF_GlyphHints hints,
+ FT_UInt width_count,
+ AF_WidthRec* widths,
AF_Dimension dim )
{
AF_AxisHints axis = &hints->axis[dim];
AF_Segment segments = axis->segments;
AF_Segment segment_limit = segments + axis->num_segments;
- FT_Pos len_threshold, len_score;
+ FT_Pos len_threshold, len_score, dist_score, max_width;
AF_Segment seg1, seg2;
+ if ( width_count )
+ max_width = widths[width_count - 1].org;
+ else
+ max_width = 0;
+
+ /* a heuristic value to set up a minimum value for overlapping */
len_threshold = AF_LATIN_CONSTANT( hints->metrics, 8 );
if ( len_threshold == 0 )
len_threshold = 1;
+ /* a heuristic value to weight lengths */
len_score = AF_LATIN_CONSTANT( hints->metrics, 6000 );
+ /* a heuristic value to weight distances (no call to */
+ /* AF_LATIN_CONSTANT needed, since we work on multiples */
+ /* of the stem width) */
+ dist_score = 3000;
+
/* now compare each segment to the others */
for ( seg1 = segments; seg1 < segment_limit; seg1++ )
{
- /* the fake segments are introduced to hint the metrics -- */
- /* we must never link them to anything */
- if ( seg1->dir != axis->major_dir || seg1->first == seg1->last )
+ if ( seg1->dir != axis->major_dir )
continue;
+ /* search for stems having opposite directions, */
+ /* with seg1 to the `left' of seg2 */
for ( seg2 = segments; seg2 < segment_limit; seg2++ )
- if ( seg1->dir + seg2->dir == 0 && seg2->pos > seg1->pos )
+ {
+ FT_Pos pos1 = seg1->pos;
+ FT_Pos pos2 = seg2->pos;
+
+
+ if ( seg1->dir + seg2->dir == 0 && pos2 > pos1 )
{
- FT_Pos pos1 = seg1->pos;
- FT_Pos pos2 = seg2->pos;
- FT_Pos dist = pos2 - pos1;
+ /* compute distance between the two segments */
+ FT_Pos min = seg1->min_coord;
+ FT_Pos max = seg1->max_coord;
+ FT_Pos len;
- if ( dist < 0 )
- dist = -dist;
+ if ( min < seg2->min_coord )
+ min = seg2->min_coord;
+
+ if ( max > seg2->max_coord )
+ max = seg2->max_coord;
+ /* compute maximum coordinate difference of the two segments */
+ /* (this is, how much they overlap) */
+ len = max - min;
+ if ( len >= len_threshold )
{
- FT_Pos min = seg1->min_coord;
- FT_Pos max = seg1->max_coord;
- FT_Pos len, score;
+ /*
+ * The score is the sum of two demerits indicating the
+ * `badness' of a fit, measured along the segments' main axis
+ * and orthogonal to it, respectively.
+ *
+ * o The less overlapping along the main axis, the worse it
+ * is, causing a larger demerit.
+ *
+ * o The nearer the orthogonal distance to a stem width, the
+ * better it is, causing a smaller demerit. For simplicity,
+ * however, we only increase the demerit for values that
+ * exceed the largest stem width.
+ */
+
+ FT_Pos dist = pos2 - pos1;
+
+ FT_Pos dist_demerit, score;
+
+
+ if ( max_width )
+ {
+ /* distance demerits are based on multiples of `max_width'; */
+ /* we scale by 1024 for getting more precision */
+ FT_Pos delta = ( dist << 10 ) / max_width - ( 1 << 10 );
- if ( min < seg2->min_coord )
- min = seg2->min_coord;
+ if ( delta > 10000 )
+ dist_demerit = 32000;
+ else if ( delta > 0 )
+ dist_demerit = delta * delta / dist_score;
+ else
+ dist_demerit = 0;
+ }
+ else
+ dist_demerit = dist; /* default if no widths available */
- if ( max > seg2->max_coord )
- max = seg2->max_coord;
+ score = dist_demerit + len_score / len;
- len = max - min;
- if ( len >= len_threshold )
+ /* and we search for the smallest score */
+ if ( score < seg1->score )
{
- score = dist + len_score / len;
-
- if ( score < seg1->score )
- {
- seg1->score = score;
- seg1->link = seg2;
- }
+ seg1->score = score;
+ seg1->link = seg2;
+ }
- if ( score < seg2->score )
- {
- seg2->score = score;
- seg2->link = seg1;
- }
+ if ( score < seg2->score )
+ {
+ seg2->score = score;
+ seg2->link = seg1;
}
}
}
+ }
}
- /* now, compute the `serif' segments */
+ /* now compute the `serif' segments, cf. explanations in `afhints.h' */
for ( seg1 = segments; seg1 < segment_limit; seg1++ )
{
seg2 = seg1->link;
@@ -960,12 +1506,14 @@
}
+ /* Link segments to edges, using feature analysis for selection. */
+
FT_LOCAL_DEF( FT_Error )
af_latin_hints_compute_edges( AF_GlyphHints hints,
AF_Dimension dim )
{
AF_AxisHints axis = &hints->axis[dim];
- FT_Error error = AF_Err_Ok;
+ FT_Error error = FT_Err_Ok;
FT_Memory memory = hints->memory;
AF_LatinAxis laxis = &((AF_LatinMetrics)hints->metrics)->axis[dim];
@@ -973,7 +1521,9 @@
AF_Segment segment_limit = segments + axis->num_segments;
AF_Segment seg;
+#if 0
AF_Direction up_dir;
+#endif
FT_Fixed scale;
FT_Pos edge_distance_threshold;
FT_Pos segment_length_threshold;
@@ -984,11 +1534,13 @@
scale = ( dim == AF_DIMENSION_HORZ ) ? hints->x_scale
: hints->y_scale;
+#if 0
up_dir = ( dim == AF_DIMENSION_HORZ ) ? AF_DIR_UP
: AF_DIR_RIGHT;
+#endif
/*
- * We ignore all segments that are less than 1 pixels in length,
+ * We ignore all segments that are less than 1 pixel in length
* to avoid many problems with serif fonts. We compute the
* corresponding threshold in font units.
*/
@@ -999,20 +1551,21 @@
/*********************************************************************/
/* */
- /* We will begin by generating a sorted table of edges for the */
- /* current direction. To do so, we simply scan each segment and try */
- /* to find an edge in our table that corresponds to its position. */
+ /* We begin by generating a sorted table of edges for the current */
+ /* direction. To do so, we simply scan each segment and try to find */
+ /* an edge in our table that corresponds to its position. */
/* */
/* If no edge is found, we create and insert a new edge in the */
/* sorted table. Otherwise, we simply add the segment to the edge's */
- /* list which will be processed in the second step to compute the */
+ /* list which gets processed in the second step to compute the */
/* edge's properties. */
/* */
- /* Note that the edges table is sorted along the segment/edge */
+ /* Note that the table of edges is sorted along the segment/edge */
/* position. */
/* */
/*********************************************************************/
+ /* assure that edge distance threshold is at most 0.25px */
edge_distance_threshold = FT_MulFix( laxis->edge_distance_threshold,
scale );
if ( edge_distance_threshold > 64 / 4 )
@@ -1023,7 +1576,7 @@
for ( seg = segments; seg < segment_limit; seg++ )
{
- AF_Edge found = 0;
+ AF_Edge found = NULL;
FT_Int ee;
@@ -1072,9 +1625,10 @@
edge->first = seg;
edge->last = seg;
- edge->fpos = seg->pos;
edge->dir = seg->dir;
- edge->opos = edge->pos = FT_MulFix( seg->pos, scale );
+ edge->fpos = seg->pos;
+ edge->opos = FT_MulFix( seg->pos, scale );
+ edge->pos = edge->opos;
seg->edge_next = seg;
}
else
@@ -1088,17 +1642,17 @@
}
- /*********************************************************************/
- /* */
- /* Good, we will now compute each edge's properties according to */
- /* segments found on its position. Basically, these are: */
- /* */
- /* - edge's main direction */
- /* - stem edge, serif edge or both (which defaults to stem then) */
- /* - rounded edge, straight or both (which defaults to straight) */
- /* - link for edge */
- /* */
- /*********************************************************************/
+ /******************************************************************/
+ /* */
+ /* Good, we now compute each edge's properties according to the */
+ /* segments found on its position. Basically, these are */
+ /* */
+ /* - the edge's main direction */
+ /* - stem edge, serif edge or both (which defaults to stem then) */
+ /* - rounded edge, straight or both (which defaults to straight) */
+ /* - link for edge */
+ /* */
+ /******************************************************************/
/* first of all, set the `edge' field in each segment -- this is */
/* required in order to compute edge links */
@@ -1126,13 +1680,15 @@
} while ( seg != edge->first );
}
- /* now, compute each edge properties */
+ /* now compute each edge properties */
for ( edge = edges; edge < edge_limit; edge++ )
{
FT_Int is_round = 0; /* does it contain round segments? */
FT_Int is_straight = 0; /* does it contain straight segments? */
+#if 0
FT_Pos ups = 0; /* number of upwards segments */
FT_Pos downs = 0; /* number of downwards segments */
+#endif
seg = edge->first;
@@ -1148,11 +1704,13 @@
else
is_straight++;
+#if 0
/* check for segment direction */
if ( seg->dir == up_dir )
- ups += seg->max_coord-seg->min_coord;
+ ups += seg->max_coord - seg->min_coord;
else
- downs += seg->max_coord-seg->min_coord;
+ downs += seg->max_coord - seg->min_coord;
+#endif
/* check for links -- if seg->serif is set, then seg->link must */
/* be ignored */
@@ -1228,7 +1786,7 @@
edge->dir = 0; /* both up and down! */
#endif
- /* gets rid of serifs if link is set */
+ /* get rid of serifs if link is set */
/* XXX: This gets rid of many unpleasant artefacts! */
/* Example: the `c' in cour.pfa at size 13 */
@@ -1242,8 +1800,12 @@
}
+ /* Detect segments and edges for given dimension. */
+
FT_LOCAL_DEF( FT_Error )
af_latin_hints_detect_features( AF_GlyphHints hints,
+ FT_UInt width_count,
+ AF_WidthRec* widths,
AF_Dimension dim )
{
FT_Error error;
@@ -1252,22 +1814,25 @@
error = af_latin_hints_compute_segments( hints, dim );
if ( !error )
{
- af_latin_hints_link_segments( hints, dim );
+ af_latin_hints_link_segments( hints, width_count, widths, dim );
error = af_latin_hints_compute_edges( hints, dim );
}
+
return error;
}
+ /* Compute all edges which lie within blue zones. */
+
FT_LOCAL_DEF( void )
af_latin_hints_compute_blue_edges( AF_GlyphHints hints,
AF_LatinMetrics metrics )
{
- AF_AxisHints axis = &hints->axis[ AF_DIMENSION_VERT ];
+ AF_AxisHints axis = &hints->axis[AF_DIMENSION_VERT];
AF_Edge edge = axis->edges;
AF_Edge edge_limit = edge + axis->num_edges;
- AF_LatinAxis latin = &metrics->axis[ AF_DIMENSION_VERT ];
+ AF_LatinAxis latin = &metrics->axis[AF_DIMENSION_VERT];
FT_Fixed scale = latin->scale;
@@ -1277,38 +1842,43 @@
/* for each horizontal edge search the blue zone which is closest */
for ( ; edge < edge_limit; edge++ )
{
- FT_Int bb;
- AF_Width best_blue = NULL;
- FT_Pos best_dist; /* initial threshold */
+ FT_UInt bb;
+ AF_Width best_blue = NULL;
+ FT_Bool best_blue_is_neutral = 0;
+ FT_Pos best_dist; /* initial threshold */
/* compute the initial threshold as a fraction of the EM size */
+ /* (the value 40 is heuristic) */
best_dist = FT_MulFix( metrics->units_per_em / 40, scale );
+ /* assure a minimum distance of 0.5px */
if ( best_dist > 64 / 2 )
best_dist = 64 / 2;
- for ( bb = 0; bb < AF_LATIN_BLUE_MAX; bb++ )
+ for ( bb = 0; bb < latin->blue_count; bb++ )
{
AF_LatinBlue blue = latin->blues + bb;
- FT_Bool is_top_blue, is_major_dir;
+ FT_Bool is_top_blue, is_neutral_blue, is_major_dir;
- /* skip inactive blue zones (i.e., those that are too small) */
+ /* skip inactive blue zones (i.e., those that are too large) */
if ( !( blue->flags & AF_LATIN_BLUE_ACTIVE ) )
continue;
- /* if it is a top zone, check for right edges -- if it is a bottom */
- /* zone, check for left edges */
- /* */
- /* of course, that's for TrueType */
- is_top_blue = (FT_Byte)( ( blue->flags & AF_LATIN_BLUE_TOP ) != 0 );
- is_major_dir = FT_BOOL( edge->dir == axis->major_dir );
-
- /* if it is a top zone, the edge must be against the major */
- /* direction; if it is a bottom zone, it must be in the major */
- /* direction */
- if ( is_top_blue ^ is_major_dir )
+ /* if it is a top zone, check for right edges (against the major */
+ /* direction); if it is a bottom zone, check for left edges (in */
+ /* the major direction) -- this assumes the TrueType convention */
+ /* for the orientation of contours */
+ is_top_blue =
+ (FT_Byte)( ( blue->flags & AF_LATIN_BLUE_TOP ) != 0 );
+ is_neutral_blue =
+ (FT_Byte)( ( blue->flags & AF_LATIN_BLUE_NEUTRAL ) != 0);
+ is_major_dir =
+ FT_BOOL( edge->dir == axis->major_dir );
+
+ /* neutral blue zones are handled for both directions */
+ if ( is_top_blue ^ is_major_dir || is_neutral_blue )
{
FT_Pos dist;
@@ -1321,21 +1891,25 @@
dist = FT_MulFix( dist, scale );
if ( dist < best_dist )
{
- best_dist = dist;
- best_blue = & blue->ref;
+ best_dist = dist;
+ best_blue = &blue->ref;
+ best_blue_is_neutral = is_neutral_blue;
}
- /* now, compare it to the overshoot position if the edge is */
- /* rounded, and if the edge is over the reference position of a */
- /* top zone, or under the reference position of a bottom zone */
- if ( edge->flags & AF_EDGE_ROUND && dist != 0 )
+ /* now compare it to the overshoot position and check whether */
+ /* the edge is rounded, and whether the edge is over the */
+ /* reference position of a top zone, or under the reference */
+ /* position of a bottom zone (provided we don't have a */
+ /* neutral blue zone) */
+ if ( edge->flags & AF_EDGE_ROUND &&
+ dist != 0 &&
+ !is_neutral_blue )
{
FT_Bool is_under_ref = FT_BOOL( edge->fpos < blue->ref.org );
if ( is_top_blue ^ is_under_ref )
{
- blue = latin->blues + bb;
dist = edge->fpos - blue->shoot.org;
if ( dist < 0 )
dist = -dist;
@@ -1343,8 +1917,9 @@
dist = FT_MulFix( dist, scale );
if ( dist < best_dist )
{
- best_dist = dist;
- best_blue = & blue->shoot;
+ best_dist = dist;
+ best_blue = &blue->shoot;
+ best_blue_is_neutral = is_neutral_blue;
}
}
}
@@ -1352,11 +1927,17 @@
}
if ( best_blue )
+ {
edge->blue_edge = best_blue;
+ if ( best_blue_is_neutral )
+ edge->flags |= AF_EDGE_NEUTRAL;
+ }
}
}
+ /* Initalize hinting engine. */
+
static FT_Error
af_latin_hints_init( AF_GlyphHints hints,
AF_LatinMetrics metrics )
@@ -1366,11 +1947,11 @@
FT_Face face = metrics->root.scaler.face;
- af_glyph_hints_rescale( hints, (AF_ScriptMetrics)metrics );
+ af_glyph_hints_rescale( hints, (AF_StyleMetrics)metrics );
/*
* correct x_scale and y_scale if needed, since they may have
- * been modified `af_latin_metrics_scale_dim' above
+ * been modified by `af_latin_metrics_scale_dim' above
*/
hints->x_scale = metrics->axis[AF_DIMENSION_HORZ].scale;
hints->x_delta = metrics->axis[AF_DIMENSION_HORZ].delta;
@@ -1380,11 +1961,9 @@
/* compute flags depending on render mode, etc. */
mode = metrics->root.scaler.render_mode;
-#if 0 /* #ifdef AF_USE_WARPER */
+#if 0 /* #ifdef AF_CONFIG_OPTION_USE_WARPER */
if ( mode == FT_RENDER_MODE_LCD || mode == FT_RENDER_MODE_LCD_V )
- {
metrics->root.scaler.render_mode = mode = FT_RENDER_MODE_NORMAL;
- }
#endif
scaler_flags = hints->scaler_flags;
@@ -1417,14 +1996,14 @@
* In `light' hinting mode we disable horizontal hinting completely.
* We also do it if the face is italic.
*/
- if ( mode == FT_RENDER_MODE_LIGHT ||
- (face->style_flags & FT_STYLE_FLAG_ITALIC) != 0 )
+ if ( mode == FT_RENDER_MODE_LIGHT ||
+ ( face->style_flags & FT_STYLE_FLAG_ITALIC ) != 0 )
scaler_flags |= AF_SCALER_FLAG_NO_HORIZONTAL;
hints->scaler_flags = scaler_flags;
hints->other_flags = other_flags;
- return 0;
+ return FT_Err_Ok;
}
@@ -1436,8 +2015,8 @@
/*************************************************************************/
/*************************************************************************/
- /* snap a given width in scaled coordinates to one of the */
- /* current standard widths */
+ /* Snap a given width in scaled coordinates to one of the */
+ /* current standard widths. */
static FT_Pos
af_latin_snap_width( AF_Width widths,
@@ -1484,7 +2063,9 @@
}
- /* compute the snapped width of a given stem */
+ /* Compute the snapped width of a given stem, ignoring very thin ones. */
+ /* There is a lot of voodoo in this function; changing the hard-coded */
+ /* parameters influence the whole hinting process. */
static FT_Pos
af_latin_compute_stem_width( AF_GlyphHints hints,
@@ -1493,15 +2074,15 @@
AF_Edge_Flags base_flags,
AF_Edge_Flags stem_flags )
{
- AF_LatinMetrics metrics = (AF_LatinMetrics) hints->metrics;
- AF_LatinAxis axis = & metrics->axis[dim];
+ AF_LatinMetrics metrics = (AF_LatinMetrics)hints->metrics;
+ AF_LatinAxis axis = &metrics->axis[dim];
FT_Pos dist = width;
FT_Int sign = 0;
FT_Int vertical = ( dim == AF_DIMENSION_VERT );
if ( !AF_LATIN_HINTS_DO_STEM_ADJUST( hints ) ||
- axis->extra_light )
+ axis->extra_light )
return width;
if ( dist < 0 )
@@ -1516,11 +2097,12 @@
/* smooth hinting process: very lightly quantize the stem width */
/* leave the widths of serifs alone */
-
- if ( ( stem_flags & AF_EDGE_SERIF ) && vertical && ( dist < 3 * 64 ) )
+ if ( ( stem_flags & AF_EDGE_SERIF ) &&
+ vertical &&
+ ( dist < 3 * 64 ) )
goto Done_Width;
- else if ( ( base_flags & AF_EDGE_ROUND ) )
+ else if ( base_flags & AF_EDGE_ROUND )
{
if ( dist < 80 )
dist = 64;
@@ -1534,21 +2116,18 @@
/* compare to standard width */
- if ( axis->width_count > 0 )
- {
- delta = dist - axis->widths[0].cur;
+ delta = dist - axis->widths[0].cur;
- if ( delta < 0 )
- delta = -delta;
+ if ( delta < 0 )
+ delta = -delta;
- if ( delta < 40 )
- {
- dist = axis->widths[0].cur;
- if ( dist < 48 )
- dist = 48;
+ if ( delta < 40 )
+ {
+ dist = axis->widths[0].cur;
+ if ( dist < 48 )
+ dist = 48;
- goto Done_Width;
- }
+ goto Done_Width;
}
if ( dist < 3 * 64 )
@@ -1575,6 +2154,7 @@
else
{
/* strong hinting process: snap the stem width to integer pixels */
+
FT_Pos org_dist = dist;
@@ -1627,7 +2207,7 @@
if ( delta < 0 )
delta = -delta;
- if (delta >= 16)
+ if ( delta >= 16 )
{
dist = org_dist;
if ( dist < 48 )
@@ -1649,7 +2229,7 @@
}
- /* align one stem edge relative to the previous stem edge */
+ /* Align one stem edge relative to the previous stem edge. */
static void
af_latin_align_linked_edge( AF_GlyphHints hints,
@@ -1667,13 +2247,16 @@
stem_edge->pos = base_edge->pos + fitted_width;
- AF_LOG(( "LINK: edge %d (opos=%.2f) linked to (%.2f), "
- "dist was %.2f, now %.2f\n",
- stem_edge-hints->axis[dim].edges, stem_edge->opos / 64.0,
- stem_edge->pos / 64.0, dist / 64.0, fitted_width / 64.0 ));
+ FT_TRACE5(( " LINK: edge %d (opos=%.2f) linked to %.2f,"
+ " dist was %.2f, now %.2f\n",
+ stem_edge - hints->axis[dim].edges, stem_edge->opos / 64.0,
+ stem_edge->pos / 64.0, dist / 64.0, fitted_width / 64.0 ));
}
+ /* Shift the coordinates of the `serif' edge by the same amount */
+ /* as the corresponding `base' edge has been moved already. */
+
static void
af_latin_align_serif_edge( AF_GlyphHints hints,
AF_Edge base,
@@ -1681,7 +2264,7 @@
{
FT_UNUSED( hints );
- serif->pos = base->pos + (serif->opos - base->opos);
+ serif->pos = base->pos + ( serif->opos - base->opos );
}
@@ -1696,6 +2279,8 @@
/*************************************************************************/
+ /* The main grid-fitting routine. */
+
FT_LOCAL_DEF( void )
af_latin_hint_edges( AF_GlyphHints hints,
AF_Dimension dim )
@@ -1705,9 +2290,17 @@
AF_Edge edge_limit = edges + axis->num_edges;
FT_PtrDist n_edges;
AF_Edge edge;
- AF_Edge anchor = 0;
+ AF_Edge anchor = NULL;
FT_Int has_serifs = 0;
+#ifdef FT_DEBUG_LEVEL_TRACE
+ FT_UInt num_actions = 0;
+#endif
+
+
+ FT_TRACE5(( "latin %s edge hinting (style `%s')\n",
+ dim == AF_DIMENSION_VERT ? "horizontal" : "vertical",
+ af_style_names[hints->metrics->style_class->style] ));
/* we begin by aligning all stems relative to the blue zone */
/* if needed -- that's only for horizontal edges */
@@ -1717,20 +2310,47 @@
for ( edge = edges; edge < edge_limit; edge++ )
{
AF_Width blue;
- AF_Edge edge1, edge2;
+ AF_Edge edge1, edge2; /* these edges form the stem to check */
if ( edge->flags & AF_EDGE_DONE )
continue;
- blue = edge->blue_edge;
edge1 = NULL;
edge2 = edge->link;
- if ( blue )
+ /*
+ * If a stem contains both a neutral and a non-neutral blue zone,
+ * skip the neutral one. Otherwise, outlines with different
+ * directions might be incorrectly aligned at the same vertical
+ * position.
+ *
+ * If we have two neutral blue zones, skip one of them.
+ *
+ */
+ if ( edge->blue_edge && edge2 && edge2->blue_edge )
{
- edge1 = edge;
+ FT_Byte neutral = edge->flags & AF_EDGE_NEUTRAL;
+ FT_Byte neutral2 = edge2->flags & AF_EDGE_NEUTRAL;
+
+
+ if ( ( neutral && neutral2 ) || neutral2 )
+ {
+ edge2->blue_edge = NULL;
+ edge2->flags &= ~AF_EDGE_NEUTRAL;
+ }
+ else if ( neutral )
+ {
+ edge->blue_edge = NULL;
+ edge->flags &= ~AF_EDGE_NEUTRAL;
+ }
}
+
+ blue = edge->blue_edge;
+ if ( blue )
+ edge1 = edge;
+
+ /* flip edges if the other edge is aligned to a blue zone */
else if ( edge2 && edge2->blue_edge )
{
blue = edge2->blue_edge;
@@ -1741,10 +2361,20 @@
if ( !edge1 )
continue;
- AF_LOG(( "BLUE: edge %d (opos=%.2f) snapped to (%.2f), "
- "was (%.2f)\n",
- edge1-edges, edge1->opos / 64.0, blue->fit / 64.0,
- edge1->pos / 64.0 ));
+#ifdef FT_DEBUG_LEVEL_TRACE
+ if ( !anchor )
+ FT_TRACE5(( " BLUE_ANCHOR: edge %d (opos=%.2f) snapped to %.2f,"
+ " was %.2f (anchor=edge %d)\n",
+ edge1 - edges, edge1->opos / 64.0, blue->fit / 64.0,
+ edge1->pos / 64.0, edge - edges ));
+ else
+ FT_TRACE5(( " BLUE: edge %d (opos=%.2f) snapped to %.2f,"
+ " was %.2f\n",
+ edge1 - edges, edge1->opos / 64.0, blue->fit / 64.0,
+ edge1->pos / 64.0 ));
+
+ num_actions++;
+#endif
edge1->pos = blue->fit;
edge1->flags |= AF_EDGE_DONE;
@@ -1753,6 +2383,10 @@
{
af_latin_align_linked_edge( hints, dim, edge1, edge2 );
edge2->flags |= AF_EDGE_DONE;
+
+#ifdef FT_DEBUG_LEVEL_TRACE
+ num_actions++;
+#endif
}
if ( !anchor )
@@ -1760,8 +2394,8 @@
}
}
- /* now we will align all stem edges, trying to maintain the */
- /* relative order of stems in the glyph */
+ /* now we align all other stem edges, trying to maintain the */
+ /* relative order of stems in the glyph */
for ( edge = edges; edge < edge_limit; edge++ )
{
AF_Edge edge2;
@@ -1783,15 +2417,21 @@
/* this should not happen, but it's better to be safe */
if ( edge2->blue_edge )
{
- AF_LOG(( "ASSERTION FAILED for edge %d\n", edge2-edges ));
+ FT_TRACE5(( " ASSERTION FAILED for edge %d\n", edge2 - edges ));
af_latin_align_linked_edge( hints, dim, edge2, edge );
edge->flags |= AF_EDGE_DONE;
+
+#ifdef FT_DEBUG_LEVEL_TRACE
+ num_actions++;
+#endif
continue;
}
if ( !anchor )
{
+ /* if we reach this if clause, no stem has been aligned yet */
+
FT_Pos org_len, org_center, cur_len;
FT_Pos cur_pos1, error1, error2, u_off, d_off;
@@ -1801,10 +2441,19 @@
hints, dim, org_len,
(AF_Edge_Flags)edge->flags,
(AF_Edge_Flags)edge2->flags );
+
+ /* some voodoo to specially round edges for small stem widths; */
+ /* the idea is to align the center of a stem, then shifting */
+ /* the stem edges to suitable positions */
if ( cur_len <= 64 )
- u_off = d_off = 32;
+ {
+ /* width <= 1px */
+ u_off = 32;
+ d_off = 32;
+ }
else
{
+ /* 1px < width < 1.5px */
u_off = 38;
d_off = 26;
}
@@ -1812,7 +2461,6 @@
if ( cur_len < 96 )
{
org_center = edge->opos + ( org_len >> 1 );
-
cur_pos1 = FT_PIX_ROUND( org_center );
error1 = org_center - ( cur_pos1 - u_off );
@@ -1834,16 +2482,20 @@
else
edge->pos = FT_PIX_ROUND( edge->opos );
- AF_LOG(( "ANCHOR: edge %d (opos=%.2f) and %d (opos=%.2f) "
- "snapped to (%.2f) (%.2f)\n",
- edge-edges, edge->opos / 64.0,
- edge2-edges, edge2->opos / 64.0,
- edge->pos / 64.0, edge2->pos / 64.0 ));
- anchor = edge;
-
+ anchor = edge;
edge->flags |= AF_EDGE_DONE;
+ FT_TRACE5(( " ANCHOR: edge %d (opos=%.2f) and %d (opos=%.2f)"
+ " snapped to %.2f and %.2f\n",
+ edge - edges, edge->opos / 64.0,
+ edge2 - edges, edge2->opos / 64.0,
+ edge->pos / 64.0, edge2->pos / 64.0 ));
+
af_latin_align_linked_edge( hints, dim, edge, edge2 );
+
+#ifdef FT_DEBUG_LEVEL_TRACE
+ num_actions += 2;
+#endif
}
else
{
@@ -1856,12 +2508,18 @@
org_center = org_pos + ( org_len >> 1 );
cur_len = af_latin_compute_stem_width(
- hints, dim, org_len,
- (AF_Edge_Flags)edge->flags,
- (AF_Edge_Flags)edge2->flags );
+ hints, dim, org_len,
+ (AF_Edge_Flags)edge->flags,
+ (AF_Edge_Flags)edge2->flags );
if ( edge2->flags & AF_EDGE_DONE )
+ {
+ FT_TRACE5(( " ADJUST: edge %d (pos=%.2f) moved to %.2f\n",
+ edge - edges, edge->pos / 64.0,
+ ( edge2->pos - cur_len ) / 64.0 ));
+
edge->pos = edge2->pos - cur_len;
+ }
else if ( cur_len < 96 )
{
@@ -1870,8 +2528,11 @@
cur_pos1 = FT_PIX_ROUND( org_center );
- if (cur_len <= 64 )
- u_off = d_off = 32;
+ if ( cur_len <= 64 )
+ {
+ u_off = 32;
+ d_off = 32;
+ }
else
{
u_off = 38;
@@ -1894,12 +2555,13 @@
edge->pos = cur_pos1 - cur_len / 2;
edge2->pos = cur_pos1 + cur_len / 2;
- AF_LOG(( "STEM: %d (opos=%.2f) to %d (opos=%.2f) "
- "snapped to (%.2f) and (%.2f)\n",
- edge-edges, edge->opos / 64.0,
- edge2-edges, edge2->opos / 64.0,
- edge->pos / 64.0, edge2->pos / 64.0 ));
+ FT_TRACE5(( " STEM: edge %d (opos=%.2f) linked to %d (opos=%.2f)"
+ " snapped to %.2f and %.2f\n",
+ edge - edges, edge->opos / 64.0,
+ edge2 - edges, edge2->opos / 64.0,
+ edge->pos / 64.0, edge2->pos / 64.0 ));
}
+
else
{
org_pos = anchor->pos + ( edge->opos - anchor->opos );
@@ -1911,33 +2573,42 @@
(AF_Edge_Flags)edge->flags,
(AF_Edge_Flags)edge2->flags );
- cur_pos1 = FT_PIX_ROUND( org_pos );
- delta1 = cur_pos1 + ( cur_len >> 1 ) - org_center;
+ cur_pos1 = FT_PIX_ROUND( org_pos );
+ delta1 = cur_pos1 + ( cur_len >> 1 ) - org_center;
if ( delta1 < 0 )
delta1 = -delta1;
- cur_pos2 = FT_PIX_ROUND( org_pos + org_len ) - cur_len;
- delta2 = cur_pos2 + ( cur_len >> 1 ) - org_center;
+ cur_pos2 = FT_PIX_ROUND( org_pos + org_len ) - cur_len;
+ delta2 = cur_pos2 + ( cur_len >> 1 ) - org_center;
if ( delta2 < 0 )
delta2 = -delta2;
edge->pos = ( delta1 < delta2 ) ? cur_pos1 : cur_pos2;
edge2->pos = edge->pos + cur_len;
- AF_LOG(( "STEM: %d (opos=%.2f) to %d (opos=%.2f) "
- "snapped to (%.2f) and (%.2f)\n",
- edge-edges, edge->opos / 64.0,
- edge2-edges, edge2->opos / 64.0,
- edge->pos / 64.0, edge2->pos / 64.0 ));
+ FT_TRACE5(( " STEM: edge %d (opos=%.2f) linked to %d (opos=%.2f)"
+ " snapped to %.2f and %.2f\n",
+ edge - edges, edge->opos / 64.0,
+ edge2 - edges, edge2->opos / 64.0,
+ edge->pos / 64.0, edge2->pos / 64.0 ));
}
+#ifdef FT_DEBUG_LEVEL_TRACE
+ num_actions++;
+#endif
+
edge->flags |= AF_EDGE_DONE;
edge2->flags |= AF_EDGE_DONE;
if ( edge > edges && edge->pos < edge[-1].pos )
{
- AF_LOG(( "BOUND: %d (pos=%.2f) to (%.2f)\n",
- edge-edges, edge->pos / 64.0, edge[-1].pos / 64.0 ));
+#ifdef FT_DEBUG_LEVEL_TRACE
+ FT_TRACE5(( " BOUND: edge %d (pos=%.2f) moved to %.2f\n",
+ edge - edges, edge->pos / 64.0, edge[-1].pos / 64.0 ));
+
+ num_actions++;
+#endif
+
edge->pos = edge[-1].pos;
}
}
@@ -2031,18 +2702,19 @@
if ( delta < 64 + 16 )
{
af_latin_align_serif_edge( hints, edge->serif, edge );
- AF_LOG(( "SERIF: edge %d (opos=%.2f) serif to %d (opos=%.2f) "
- "aligned to (%.2f)\n",
- edge-edges, edge->opos / 64.0,
- edge->serif - edges, edge->serif->opos / 64.0,
- edge->pos / 64.0 ));
+ FT_TRACE5(( " SERIF: edge %d (opos=%.2f) serif to %d (opos=%.2f)"
+ " aligned to %.2f\n",
+ edge - edges, edge->opos / 64.0,
+ edge->serif - edges, edge->serif->opos / 64.0,
+ edge->pos / 64.0 ));
}
else if ( !anchor )
{
- AF_LOG(( "SERIF_ANCHOR: edge %d (opos=%.2f) snapped to (%.2f)\n",
- edge-edges, edge->opos / 64.0, edge->pos / 64.0 ));
edge->pos = FT_PIX_ROUND( edge->opos );
anchor = edge;
+ FT_TRACE5(( " SERIF_ANCHOR: edge %d (opos=%.2f)"
+ " snapped to %.2f\n",
+ edge-edges, edge->opos / 64.0, edge->pos / 64.0 ));
}
else
{
@@ -2067,35 +2739,65 @@
FT_MulDiv( edge->opos - before->opos,
after->pos - before->pos,
after->opos - before->opos );
- AF_LOG(( "SERIF_LINK1: edge %d (opos=%.2f) snapped to (%.2f) "
- "from %d (opos=%.2f)\n",
- edge-edges, edge->opos / 64.0,
- edge->pos / 64.0, before - edges,
- before->opos / 64.0 ));
+
+ FT_TRACE5(( " SERIF_LINK1: edge %d (opos=%.2f) snapped to %.2f"
+ " from %d (opos=%.2f)\n",
+ edge - edges, edge->opos / 64.0,
+ edge->pos / 64.0,
+ before - edges, before->opos / 64.0 ));
}
else
{
edge->pos = anchor->pos +
( ( edge->opos - anchor->opos + 16 ) & ~31 );
- AF_LOG(( "SERIF_LINK2: edge %d (opos=%.2f) snapped to (%.2f)\n",
- edge-edges, edge->opos / 64.0, edge->pos / 64.0 ));
+ FT_TRACE5(( " SERIF_LINK2: edge %d (opos=%.2f)"
+ " snapped to %.2f\n",
+ edge - edges, edge->opos / 64.0, edge->pos / 64.0 ));
}
}
+#ifdef FT_DEBUG_LEVEL_TRACE
+ num_actions++;
+#endif
edge->flags |= AF_EDGE_DONE;
if ( edge > edges && edge->pos < edge[-1].pos )
+ {
+#ifdef FT_DEBUG_LEVEL_TRACE
+ FT_TRACE5(( " BOUND: edge %d (pos=%.2f) moved to %.2f\n",
+ edge - edges, edge->pos / 64.0, edge[-1].pos / 64.0 ));
+
+ num_actions++;
+#endif
edge->pos = edge[-1].pos;
+ }
if ( edge + 1 < edge_limit &&
edge[1].flags & AF_EDGE_DONE &&
edge->pos > edge[1].pos )
+ {
+#ifdef FT_DEBUG_LEVEL_TRACE
+ FT_TRACE5(( " BOUND: edge %d (pos=%.2f) moved to %.2f\n",
+ edge - edges, edge->pos / 64.0, edge[1].pos / 64.0 ));
+
+ num_actions++;
+#endif
+
edge->pos = edge[1].pos;
+ }
}
}
+
+#ifdef FT_DEBUG_LEVEL_TRACE
+ if ( !num_actions )
+ FT_TRACE5(( " (none)\n" ));
+ FT_TRACE5(( "\n" ));
+#endif
}
+ /* Apply the complete hinting algorithm to a latin glyph. */
+
static FT_Error
af_latin_hints_apply( AF_GlyphHints hints,
FT_Outline* outline,
@@ -2104,27 +2806,37 @@
FT_Error error;
int dim;
+ AF_LatinAxis axis;
- error = af_glyph_hints_reload( hints, outline, 1 );
+
+ error = af_glyph_hints_reload( hints, outline );
if ( error )
goto Exit;
/* analyze glyph outline */
-#ifdef AF_USE_WARPER
+#ifdef AF_CONFIG_OPTION_USE_WARPER
if ( metrics->root.scaler.render_mode == FT_RENDER_MODE_LIGHT ||
- AF_HINTS_DO_HORIZONTAL( hints ) )
+ AF_HINTS_DO_HORIZONTAL( hints ) )
#else
if ( AF_HINTS_DO_HORIZONTAL( hints ) )
#endif
{
- error = af_latin_hints_detect_features( hints, AF_DIMENSION_HORZ );
+ axis = &metrics->axis[AF_DIMENSION_HORZ];
+ error = af_latin_hints_detect_features( hints,
+ axis->width_count,
+ axis->widths,
+ AF_DIMENSION_HORZ );
if ( error )
goto Exit;
}
if ( AF_HINTS_DO_VERTICAL( hints ) )
{
- error = af_latin_hints_detect_features( hints, AF_DIMENSION_VERT );
+ axis = &metrics->axis[AF_DIMENSION_VERT];
+ error = af_latin_hints_detect_features( hints,
+ axis->width_count,
+ axis->widths,
+ AF_DIMENSION_VERT );
if ( error )
goto Exit;
@@ -2134,17 +2846,19 @@
/* grid-fit the outline */
for ( dim = 0; dim < AF_DIMENSION_MAX; dim++ )
{
-#ifdef AF_USE_WARPER
- if ( ( dim == AF_DIMENSION_HORZ &&
- metrics->root.scaler.render_mode == FT_RENDER_MODE_LIGHT ) )
+#ifdef AF_CONFIG_OPTION_USE_WARPER
+ if ( dim == AF_DIMENSION_HORZ &&
+ metrics->root.scaler.render_mode == FT_RENDER_MODE_LIGHT )
{
AF_WarperRec warper;
FT_Fixed scale;
FT_Pos delta;
- af_warper_compute( &warper, hints, dim, &scale, &delta );
- af_glyph_hints_scale_dim( hints, dim, scale, delta );
+ af_warper_compute( &warper, hints, (AF_Dimension)dim,
+ &scale, &delta );
+ af_glyph_hints_scale_dim( hints, (AF_Dimension)dim,
+ scale, delta );
continue;
}
#endif
@@ -2158,6 +2872,7 @@
af_glyph_hints_align_weak_points( hints, (AF_Dimension)dim );
}
}
+
af_glyph_hints_save( hints, outline );
Exit:
@@ -2174,53 +2889,19 @@
/*************************************************************************/
- /* XXX: this should probably fine tuned to differentiate better between */
- /* scripts... */
+ AF_DEFINE_WRITING_SYSTEM_CLASS(
+ af_latin_writing_system_class,
- static const AF_Script_UniRangeRec af_latin_uniranges[] =
- {
- AF_UNIRANGE_REC( 0x0020UL, 0x007FUL ), /* Basic Latin (no control chars) */
- AF_UNIRANGE_REC( 0x00A0UL, 0x00FFUL ), /* Latin-1 Supplement (no control chars) */
- AF_UNIRANGE_REC( 0x0100UL, 0x017FUL ), /* Latin Extended-A */
- AF_UNIRANGE_REC( 0x0180UL, 0x024FUL ), /* Latin Extended-B */
- AF_UNIRANGE_REC( 0x0250UL, 0x02AFUL ), /* IPA Extensions */
- AF_UNIRANGE_REC( 0x02B0UL, 0x02FFUL ), /* Spacing Modifier Letters */
- AF_UNIRANGE_REC( 0x0300UL, 0x036FUL ), /* Combining Diacritical Marks */
- AF_UNIRANGE_REC( 0x0370UL, 0x03FFUL ), /* Greek and Coptic */
- AF_UNIRANGE_REC( 0x0400UL, 0x04FFUL ), /* Cyrillic */
- AF_UNIRANGE_REC( 0x0500UL, 0x052FUL ), /* Cyrillic Supplement */
- AF_UNIRANGE_REC( 0x1D00UL, 0x1D7FUL ), /* Phonetic Extensions */
- AF_UNIRANGE_REC( 0x1D80UL, 0x1DBFUL ), /* Phonetic Extensions Supplement */
- AF_UNIRANGE_REC( 0x1DC0UL, 0x1DFFUL ), /* Combining Diacritical Marks Supplement */
- AF_UNIRANGE_REC( 0x1E00UL, 0x1EFFUL ), /* Latin Extended Additional */
- AF_UNIRANGE_REC( 0x1F00UL, 0x1FFFUL ), /* Greek Extended */
- AF_UNIRANGE_REC( 0x2000UL, 0x206FUL ), /* General Punctuation */
- AF_UNIRANGE_REC( 0x2070UL, 0x209FUL ), /* Superscripts and Subscripts */
- AF_UNIRANGE_REC( 0x20A0UL, 0x20CFUL ), /* Currency Symbols */
- AF_UNIRANGE_REC( 0x2150UL, 0x218FUL ), /* Number Forms */
- AF_UNIRANGE_REC( 0x2460UL, 0x24FFUL ), /* Enclosed Alphanumerics */
- AF_UNIRANGE_REC( 0x2C60UL, 0x2C7FUL ), /* Latin Extended-C */
- AF_UNIRANGE_REC( 0x2DE0UL, 0x2DFFUL ), /* Cyrillic Extended-A */
- AF_UNIRANGE_REC( 0xA640UL, 0xA69FUL ), /* Cyrillic Extended-B */
- AF_UNIRANGE_REC( 0xA720UL, 0xA7FFUL ), /* Latin Extended-D */
- AF_UNIRANGE_REC( 0xFB00UL, 0xFB06UL ), /* Alphab. Present. Forms (Latin Ligs) */
- AF_UNIRANGE_REC( 0x1D400UL, 0x1D7FFUL ), /* Mathematical Alphanumeric Symbols */
- AF_UNIRANGE_REC( 0UL, 0UL )
- };
-
-
- AF_DEFINE_SCRIPT_CLASS(af_latin_script_class,
- AF_SCRIPT_LATIN,
- af_latin_uniranges,
-
- sizeof( AF_LatinMetricsRec ),
-
- (AF_Script_InitMetricsFunc) af_latin_metrics_init,
- (AF_Script_ScaleMetricsFunc)af_latin_metrics_scale,
- (AF_Script_DoneMetricsFunc) NULL,
-
- (AF_Script_InitHintsFunc) af_latin_hints_init,
- (AF_Script_ApplyHintsFunc) af_latin_hints_apply
+ AF_WRITING_SYSTEM_LATIN,
+
+ sizeof ( AF_LatinMetricsRec ),
+
+ (AF_WritingSystem_InitMetricsFunc) af_latin_metrics_init,
+ (AF_WritingSystem_ScaleMetricsFunc)af_latin_metrics_scale,
+ (AF_WritingSystem_DoneMetricsFunc) NULL,
+
+ (AF_WritingSystem_InitHintsFunc) af_latin_hints_init,
+ (AF_WritingSystem_ApplyHintsFunc) af_latin_hints_apply
)
diff --git a/src/3rdparty/freetype/src/autofit/aflatin.h b/src/3rdparty/freetype/src/autofit/aflatin.h
index 660b10c83f..2c0bfca18b 100644
--- a/src/3rdparty/freetype/src/autofit/aflatin.h
+++ b/src/3rdparty/freetype/src/autofit/aflatin.h
@@ -2,9 +2,10 @@
/* */
/* aflatin.h */
/* */
-/* Auto-fitter hinting routines for latin script (specification). */
+/* Auto-fitter hinting routines for latin writing system */
+/* (specification). */
/* */
-/* Copyright 2003, 2004, 2005, 2006, 2007, 2009 by */
+/* Copyright 2003-2007, 2009, 2011-2014 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -24,14 +25,13 @@
FT_BEGIN_HEADER
+ /* the `latin' writing system */
- /* the latin-specific script class */
+ AF_DECLARE_WRITING_SYSTEM_CLASS( af_latin_writing_system_class )
- AF_DECLARE_SCRIPT_CLASS(af_latin_script_class)
-
-/* constants are given with units_per_em == 2048 in mind */
-#define AF_LATIN_CONSTANT( metrics, c ) \
+ /* constants are given with units_per_em == 2048 in mind */
+#define AF_LATIN_CONSTANT( metrics, c ) \
( ( (c) * (FT_Long)( (AF_LatinMetrics)(metrics) )->units_per_em ) / 2048 )
@@ -46,40 +46,30 @@ FT_BEGIN_HEADER
/*
* The following declarations could be embedded in the file `aflatin.c';
- * they have been made semi-public to allow alternate script hinters to
- * re-use some of them.
+ * they have been made semi-public to allow alternate writing system
+ * hinters to re-use some of them.
*/
- /* Latin (global) metrics management */
-
- enum
- {
- AF_LATIN_BLUE_CAPITAL_TOP,
- AF_LATIN_BLUE_CAPITAL_BOTTOM,
- AF_LATIN_BLUE_SMALL_F_TOP,
- AF_LATIN_BLUE_SMALL_TOP,
- AF_LATIN_BLUE_SMALL_BOTTOM,
- AF_LATIN_BLUE_SMALL_MINOR,
-
- AF_LATIN_BLUE_MAX
- };
-
-
-#define AF_LATIN_IS_TOP_BLUE( b ) ( (b) == AF_LATIN_BLUE_CAPITAL_TOP || \
- (b) == AF_LATIN_BLUE_SMALL_F_TOP || \
- (b) == AF_LATIN_BLUE_SMALL_TOP )
+#define AF_LATIN_IS_TOP_BLUE( b ) \
+ ( (b)->properties & AF_BLUE_PROPERTY_LATIN_TOP )
+#define AF_LATIN_IS_NEUTRAL_BLUE( b ) \
+ ( (b)->properties & AF_BLUE_PROPERTY_LATIN_NEUTRAL )
+#define AF_LATIN_IS_X_HEIGHT_BLUE( b ) \
+ ( (b)->properties & AF_BLUE_PROPERTY_LATIN_X_HEIGHT )
+#define AF_LATIN_IS_LONG_BLUE( b ) \
+ ( (b)->properties & AF_BLUE_PROPERTY_LATIN_LONG )
#define AF_LATIN_MAX_WIDTHS 16
-#define AF_LATIN_MAX_BLUES AF_LATIN_BLUE_MAX
enum
{
- AF_LATIN_BLUE_ACTIVE = 1 << 0,
- AF_LATIN_BLUE_TOP = 1 << 1,
- AF_LATIN_BLUE_ADJUSTMENT = 1 << 2, /* used for scale adjustment */
- /* optimization */
+ AF_LATIN_BLUE_ACTIVE = 1 << 0, /* set if zone height is <= 3/4px */
+ AF_LATIN_BLUE_TOP = 1 << 1, /* set if we have a top blue zone */
+ AF_LATIN_BLUE_NEUTRAL = 1 << 2, /* set if we have neutral blue zone */
+ AF_LATIN_BLUE_ADJUSTMENT = 1 << 3, /* used for scale adjustment */
+ /* optimization */
AF_LATIN_BLUE_FLAG_MAX
};
@@ -98,16 +88,15 @@ FT_BEGIN_HEADER
FT_Fixed scale;
FT_Pos delta;
- FT_UInt width_count;
- AF_WidthRec widths[AF_LATIN_MAX_WIDTHS];
- FT_Pos edge_distance_threshold;
- FT_Pos standard_width;
- FT_Bool extra_light;
+ FT_UInt width_count; /* number of used widths */
+ AF_WidthRec widths[AF_LATIN_MAX_WIDTHS]; /* widths array */
+ FT_Pos edge_distance_threshold; /* used for creating edges */
+ FT_Pos standard_width; /* the default stem thickness */
+ FT_Bool extra_light; /* is standard width very light? */
/* ignored for horizontal metrics */
- FT_Bool control_overshoot;
FT_UInt blue_count;
- AF_LatinBlueRec blues[AF_LATIN_BLUE_MAX];
+ AF_LatinBlueRec blues[AF_BLUE_STRINGSET_MAX];
FT_Fixed org_scale;
FT_Pos org_delta;
@@ -117,9 +106,9 @@ FT_BEGIN_HEADER
typedef struct AF_LatinMetricsRec_
{
- AF_ScriptMetricsRec root;
- FT_UInt units_per_em;
- AF_LatinAxisRec axis[AF_DIMENSION_MAX];
+ AF_StyleMetricsRec root;
+ FT_UInt units_per_em;
+ AF_LatinAxisRec axis[AF_DIMENSION_MAX];
} AF_LatinMetricsRec, *AF_LatinMetrics;
@@ -134,8 +123,7 @@ FT_BEGIN_HEADER
FT_LOCAL( void )
af_latin_metrics_init_widths( AF_LatinMetrics metrics,
- FT_Face face,
- FT_ULong charcode );
+ FT_Face face );
FT_LOCAL( void )
af_latin_metrics_check_digits( AF_LatinMetrics metrics,
@@ -175,31 +163,27 @@ FT_BEGIN_HEADER
/*
- * This shouldn't normally be exported. However, other scripts might
- * like to use this function as-is.
+ * The next functions shouldn't normally be exported. However, other
+ * writing systems might like to use these functions as-is.
*/
FT_LOCAL( FT_Error )
af_latin_hints_compute_segments( AF_GlyphHints hints,
AF_Dimension dim );
- /*
- * This shouldn't normally be exported. However, other scripts might
- * want to use this function as-is.
- */
FT_LOCAL( void )
af_latin_hints_link_segments( AF_GlyphHints hints,
+ FT_UInt width_count,
+ AF_WidthRec* widths,
AF_Dimension dim );
- /*
- * This shouldn't normally be exported. However, other scripts might
- * want to use this function as-is.
- */
FT_LOCAL( FT_Error )
af_latin_hints_compute_edges( AF_GlyphHints hints,
AF_Dimension dim );
FT_LOCAL( FT_Error )
af_latin_hints_detect_features( AF_GlyphHints hints,
+ FT_UInt width_count,
+ AF_WidthRec* widths,
AF_Dimension dim );
/* */
diff --git a/src/3rdparty/freetype/src/autofit/aflatin2.c b/src/3rdparty/freetype/src/autofit/aflatin2.c
index 5cbeb296b5..07590b380c 100644
--- a/src/3rdparty/freetype/src/autofit/aflatin2.c
+++ b/src/3rdparty/freetype/src/autofit/aflatin2.c
@@ -1,10 +1,10 @@
/***************************************************************************/
/* */
-/* aflatin.c */
+/* aflatin2.c */
/* */
-/* Auto-fitter hinting routines for latin script (body). */
+/* Auto-fitter hinting routines for latin writing system (body). */
/* */
-/* Copyright 2003, 2004, 2005, 2006, 2007, 2008, 2009 by */
+/* Copyright 2003-2014 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -18,18 +18,30 @@
#include FT_ADVANCES_H
+#include "afglobal.h"
#include "aflatin.h"
#include "aflatin2.h"
#include "aferrors.h"
-#ifdef AF_USE_WARPER
+#ifdef AF_CONFIG_OPTION_USE_WARPER
#include "afwarp.h"
#endif
+
+ /*************************************************************************/
+ /* */
+ /* The macro FT_COMPONENT is used in trace mode. It is an implicit */
+ /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */
+ /* messages during execution. */
+ /* */
+#undef FT_COMPONENT
+#define FT_COMPONENT trace_aflatin2
+
+
FT_LOCAL_DEF( FT_Error )
af_latin2_hints_compute_segments( AF_GlyphHints hints,
- AF_Dimension dim );
+ AF_Dimension dim );
FT_LOCAL_DEF( void )
af_latin2_hints_link_segments( AF_GlyphHints hints,
@@ -45,8 +57,7 @@
FT_LOCAL_DEF( void )
af_latin2_metrics_init_widths( AF_LatinMetrics metrics,
- FT_Face face,
- FT_ULong charcode )
+ FT_Face face )
{
/* scan the array of segments in each direction */
AF_GlyphHintsRec hints[1];
@@ -65,7 +76,9 @@
AF_Scaler scaler = &dummy->root.scaler;
- glyph_index = FT_Get_Char_Index( face, charcode );
+ glyph_index = FT_Get_Char_Index(
+ face,
+ metrics->root.style_class->standard_char );
if ( glyph_index == 0 )
goto Exit;
@@ -82,9 +95,9 @@
scaler->render_mode = FT_RENDER_MODE_NORMAL;
scaler->flags = 0;
- af_glyph_hints_rescale( hints, (AF_ScriptMetrics)dummy );
+ af_glyph_hints_rescale( hints, (AF_StyleMetrics)dummy );
- error = af_glyph_hints_reload( hints, &face->glyph->outline, 0 );
+ error = af_glyph_hints_reload( hints, &face->glyph->outline );
if ( error )
goto Exit;
@@ -122,7 +135,7 @@
dist = -dist;
if ( num_widths < AF_LATIN_MAX_WIDTHS )
- axis->widths[ num_widths++ ].org = dist;
+ axis->widths[num_widths++].org = dist;
}
}
@@ -156,7 +169,8 @@
#define AF_LATIN_MAX_TEST_CHARACTERS 12
- static const char af_latin2_blue_chars[AF_LATIN_MAX_BLUES][AF_LATIN_MAX_TEST_CHARACTERS+1] =
+ static const char af_latin2_blue_chars[AF_LATIN_MAX_BLUES]
+ [AF_LATIN_MAX_TEST_CHARACTERS+1] =
{
"THEZOCQS",
"HEZLOCUS",
@@ -169,7 +183,7 @@
static void
af_latin2_metrics_init_blues( AF_LatinMetrics metrics,
- FT_Face face )
+ FT_Face face )
{
FT_Pos flats [AF_LATIN_MAX_TEST_CHARACTERS];
FT_Pos rounds[AF_LATIN_MAX_TEST_CHARACTERS];
@@ -182,12 +196,12 @@
FT_GlyphSlot glyph = face->glyph;
- /* we compute the blues simply by loading each character from the */
+ /* we compute the blues simply by loading each character from the */
/* 'af_latin2_blue_chars[blues]' string, then compute its top-most or */
- /* bottom-most points (depending on `AF_IS_TOP_BLUE') */
+ /* bottom-most points (depending on `AF_IS_TOP_BLUE') */
- AF_LOG(( "blue zones computation\n" ));
- AF_LOG(( "------------------------------------------------\n" ));
+ FT_TRACE5(( "blue zones computation\n"
+ "======================\n\n" ));
for ( bb = 0; bb < AF_LATIN_BLUE_MAX; bb++ )
{
@@ -197,7 +211,7 @@
FT_Pos* blue_shoot;
- AF_LOG(( "blue %3d: ", bb ));
+ FT_TRACE5(( "blue zone %d:\n", bb ));
num_flats = 0;
num_rounds = 0;
@@ -210,8 +224,6 @@
FT_Bool round;
- AF_LOG(( "'%c'", *p ));
-
/* load the character in the face -- skip unknown or empty ones */
glyph_index = FT_Get_Char_Index( face, (FT_UInt)*p );
if ( glyph_index == 0 )
@@ -273,13 +285,14 @@
best_last = last;
}
}
- AF_LOG(( "%5d", best_y ));
+ FT_TRACE5(( " %c %d", *p, best_y ));
}
/* now check whether the point belongs to a straight or round */
/* segment; we first need to find in which contour the extremum */
/* lies, then inspect its previous and next points */
{
+ FT_Pos best_x = points[best_point].x;
FT_Int start, end, prev, next;
FT_Pos dist;
@@ -290,13 +303,16 @@
do
{
- prev = start-1;
+ prev = start - 1;
if ( prev < best_first )
prev = best_last;
- dist = points[prev].y - best_y;
- if ( dist < -5 || dist > 5 )
- break;
+ dist = FT_ABS( points[prev].y - best_y );
+ /* accept a small distance or a small angle (both values are */
+ /* heuristic; value 20 corresponds to approx. 2.9 degrees) */
+ if ( dist > 5 )
+ if ( FT_ABS( points[prev].x - best_x ) <= 20 * dist )
+ break;
start = prev;
@@ -304,13 +320,14 @@
do
{
- next = end+1;
+ next = end + 1;
if ( next > best_last )
next = best_first;
- dist = points[next].y - best_y;
- if ( dist < -5 || dist > 5 )
- break;
+ dist = FT_ABS( points[next].y - best_y );
+ if ( dist > 5 )
+ if ( FT_ABS( points[next].x - best_x ) <= 20 * dist )
+ break;
end = next;
@@ -321,7 +338,7 @@
FT_CURVE_TAG( glyph->outline.tags[start] ) != FT_CURVE_TAG_ON ||
FT_CURVE_TAG( glyph->outline.tags[ end ] ) != FT_CURVE_TAG_ON );
- AF_LOG(( "%c ", round ? 'r' : 'f' ));
+ FT_TRACE5(( " (%s)\n", round ? "round" : "flat" ));
}
if ( round )
@@ -330,15 +347,13 @@
flats[num_flats++] = best_y;
}
- AF_LOG(( "\n" ));
-
if ( num_flats == 0 && num_rounds == 0 )
{
/*
* we couldn't find a single glyph to compute this blue zone,
* we will simply ignore it then
*/
- AF_LOG(( "empty\n" ));
+ FT_TRACE5(( " empty\n" ));
continue;
}
@@ -381,7 +396,13 @@
if ( AF_LATIN_IS_TOP_BLUE( bb ) ^ over_ref )
- *blue_shoot = *blue_ref = ( shoot + ref ) / 2;
+ {
+ *blue_ref =
+ *blue_shoot = ( shoot + ref ) / 2;
+
+ FT_TRACE5(( " [overshoot smaller than reference,"
+ " taking mean value]\n" ));
+ }
}
blue->flags = 0;
@@ -389,14 +410,16 @@
blue->flags |= AF_LATIN_BLUE_TOP;
/*
- * The following flags is used later to adjust the y and x scales
+ * The following flag is used later to adjust the y and x scales
* in order to optimize the pixel grid alignment of the top of small
* letters.
*/
- if ( bb == AF_LATIN_BLUE_SMALL_TOP )
+ if ( AF_LATIN_IS_X_HEIGHT_BLUE( bb ) )
blue->flags |= AF_LATIN_BLUE_ADJUSTMENT;
- AF_LOG(( "-- ref = %ld, shoot = %ld\n", *blue_ref, *blue_shoot ));
+ FT_TRACE5(( " -> reference = %ld\n"
+ " overshoot = %ld\n",
+ *blue_ref, *blue_shoot ));
}
return;
@@ -451,9 +474,9 @@
FT_LOCAL_DEF( FT_Error )
af_latin2_metrics_init( AF_LatinMetrics metrics,
- FT_Face face )
+ FT_Face face )
{
- FT_Error error = AF_Err_Ok;
+ FT_Error error = FT_Err_Ok;
FT_CharMap oldmap = face->charmap;
FT_UInt ee;
@@ -479,21 +502,20 @@
if ( !error )
{
- /* For now, compute the standard width and height from the `o'. */
- af_latin2_metrics_init_widths( metrics, face, 'o' );
+ af_latin2_metrics_init_widths( metrics, face );
af_latin2_metrics_init_blues( metrics, face );
af_latin2_metrics_check_digits( metrics, face );
}
FT_Set_Charmap( face, oldmap );
- return AF_Err_Ok;
+ return FT_Err_Ok;
}
static void
af_latin2_metrics_scale_dim( AF_LatinMetrics metrics,
- AF_Scaler scaler,
- AF_Dimension dim )
+ AF_Scaler scaler,
+ AF_Dimension dim )
{
FT_Fixed scale;
FT_Pos delta;
@@ -541,13 +563,35 @@
if ( blue )
{
- FT_Pos scaled = FT_MulFix( blue->shoot.org, scaler->y_scale );
- FT_Pos fitted = ( scaled + 40 ) & ~63;
+ FT_Pos scaled;
+ FT_Pos threshold;
+ FT_Pos fitted;
+ FT_UInt limit;
+ FT_UInt ppem;
+
+
+ scaled = FT_MulFix( blue->shoot.org, scaler->y_scale );
+ ppem = metrics->root.scaler.face->size->metrics.x_ppem;
+ limit = metrics->root.globals->increase_x_height;
+ threshold = 40;
+
+ /* if the `increase-x-height' property is active, */
+ /* we round up much more often */
+ if ( limit &&
+ ppem <= limit &&
+ ppem >= AF_PROP_INCREASE_X_HEIGHT_MIN )
+ threshold = 52;
+
+ fitted = ( scaled + threshold ) & ~63;
#if 1
- if ( scaled != fitted ) {
+ if ( scaled != fitted )
+ {
scale = FT_MulDiv( scale, fitted, scaled );
- AF_LOG(( "== scaled x-top = %.2g fitted = %.2g, scaling = %.4g\n", scaled/64.0, fitted/64.0, (fitted*1.0)/scaled ));
+ FT_TRACE5(( "== scaled x-top = %.2g"
+ " fitted = %.2g, scaling = %.4g\n",
+ scaled / 64.0, fitted / 64.0,
+ ( fitted * 1.0 ) / scaled ));
}
#endif
}
@@ -578,7 +622,7 @@
}
/* an extra-light axis corresponds to a standard width that is */
- /* smaller than 0.75 pixels */
+ /* smaller than 5/8 pixels */
axis->extra_light =
(FT_Bool)( FT_MulFix( axis->standard_width, scale ) < 32 + 8 );
@@ -623,9 +667,11 @@
blue->ref.fit = FT_PIX_ROUND( blue->ref.cur );
blue->shoot.fit = blue->ref.fit + delta2;
- AF_LOG(( ">> activating blue zone %d: ref.cur=%.2g ref.fit=%.2g shoot.cur=%.2g shoot.fit=%.2g\n",
- nn, blue->ref.cur/64.0, blue->ref.fit/64.0,
- blue->shoot.cur/64.0, blue->shoot.fit/64.0 ));
+ FT_TRACE5(( ">> activating blue zone %d:"
+ " ref.cur=%.2g ref.fit=%.2g"
+ " shoot.cur=%.2g shoot.fit=%.2g\n",
+ nn, blue->ref.cur / 64.0, blue->ref.fit / 64.0,
+ blue->shoot.cur / 64.0, blue->shoot.fit / 64.0 ));
blue->flags |= AF_LATIN_BLUE_ACTIVE;
}
@@ -636,10 +682,11 @@
FT_LOCAL_DEF( void )
af_latin2_metrics_scale( AF_LatinMetrics metrics,
- AF_Scaler scaler )
+ AF_Scaler scaler )
{
metrics->root.scaler.render_mode = scaler->render_mode;
metrics->root.scaler.face = scaler->face;
+ metrics->root.scaler.flags = scaler->flags;
af_latin2_metrics_scale_dim( metrics, scaler, AF_DIMENSION_HORZ );
af_latin2_metrics_scale_dim( metrics, scaler, AF_DIMENSION_VERT );
@@ -658,11 +705,11 @@
FT_LOCAL_DEF( FT_Error )
af_latin2_hints_compute_segments( AF_GlyphHints hints,
- AF_Dimension dim )
+ AF_Dimension dim )
{
AF_AxisHints axis = &hints->axis[dim];
FT_Memory memory = hints->memory;
- FT_Error error = AF_Err_Ok;
+ FT_Error error = FT_Err_Ok;
AF_Segment segment = NULL;
AF_SegmentRec seg0;
AF_Point* contour = hints->contours;
@@ -778,18 +825,17 @@
segment->dir = first->out_dir;
segment->first = first;
segment->last = point;
- segment->contour = contour;
- segment->pos = (FT_Short)(( min_u + max_u ) >> 1);
+ segment->pos = (FT_Short)( ( min_u + max_u ) >> 1 );
segment->min_coord = (FT_Short) min_v;
segment->max_coord = (FT_Short) max_v;
- segment->height = (FT_Short)(max_v - min_v);
+ segment->height = (FT_Short)( max_v - min_v );
/* a segment is round if it doesn't have successive */
/* on-curve points. */
{
AF_Point pt = first;
AF_Point last = point;
- AF_Flags f0 = (AF_Flags)(pt->flags & AF_FLAG_CONTROL);
+ AF_Flags f0 = (AF_Flags)( pt->flags & AF_FLAG_CONTROL );
AF_Flags f1;
@@ -798,7 +844,7 @@
for ( ; pt != last; f0 = f1 )
{
pt = pt->next;
- f1 = (AF_Flags)(pt->flags & AF_FLAG_CONTROL);
+ f1 = (AF_Flags)( pt->flags & AF_FLAG_CONTROL );
if ( !f0 && !f1 )
break;
@@ -815,7 +861,7 @@
break;
/* jump to the start of the next segment, if any */
- while ( FT_ABS(point->out_dir) != major_dir )
+ while ( FT_ABS( point->out_dir ) != major_dir )
{
point = point->next;
@@ -844,9 +890,6 @@
FT_Pos last_v = last->v;
- if ( first == last )
- continue;
-
if ( first_v < last_v )
{
p = first->prev;
@@ -883,16 +926,17 @@
FT_UInt count = axis->num_segments;
FT_UInt ii, jj;
- for (ii = 0; ii < count; ii++)
+ for ( ii = 0; ii < count; ii++ )
{
if ( segments[ii].dir > 0 )
{
- for (jj = ii+1; jj < count; jj++)
+ for ( jj = ii + 1; jj < count; jj++ )
{
if ( segments[jj].dir < 0 )
{
AF_SegmentRec tmp;
+
tmp = segments[ii];
segments[ii] = segments[jj];
segments[jj] = tmp;
@@ -916,7 +960,7 @@
FT_LOCAL_DEF( void )
af_latin2_hints_link_segments( AF_GlyphHints hints,
- AF_Dimension dim )
+ AF_Dimension dim )
{
AF_AxisHints axis = &hints->axis[dim];
AF_Segment segments = axis->segments;
@@ -937,7 +981,7 @@
#ifdef AF_SORT_SEGMENTS
for ( seg1 = segments; seg1 < segment_mid; seg1++ )
{
- if ( seg1->dir != axis->major_dir || seg1->first == seg1->last )
+ if ( seg1->dir != axis->major_dir )
continue;
for ( seg2 = segment_mid; seg2 < segment_limit; seg2++ )
@@ -945,9 +989,7 @@
/* now compare each segment to the others */
for ( seg1 = segments; seg1 < segment_limit; seg1++ )
{
- /* the fake segments are introduced to hint the metrics -- */
- /* we must never link them to anything */
- if ( seg1->dir != axis->major_dir || seg1->first == seg1->last )
+ if ( seg1->dir != axis->major_dir )
continue;
for ( seg2 = segments; seg2 < segment_limit; seg2++ )
@@ -1016,10 +1058,10 @@
FT_LOCAL_DEF( FT_Error )
af_latin2_hints_compute_edges( AF_GlyphHints hints,
- AF_Dimension dim )
+ AF_Dimension dim )
{
AF_AxisHints axis = &hints->axis[dim];
- FT_Error error = AF_Err_Ok;
+ FT_Error error = FT_Err_Ok;
FT_Memory memory = hints->memory;
AF_LatinAxis laxis = &((AF_LatinMetrics)hints->metrics)->axis[dim];
@@ -1053,7 +1095,7 @@
if ( dim == AF_DIMENSION_HORZ )
{
if ( laxis->width_count > 0 )
- segment_length_threshold = (laxis->standard_width * 10 ) >> 4;
+ segment_length_threshold = ( laxis->standard_width * 10 ) >> 4;
else
segment_length_threshold = FT_DivFix( 64, hints->y_scale );
}
@@ -1099,10 +1141,11 @@
{
FT_Pos dist = seg->serif->pos - seg->pos;
- if (dist < 0)
+
+ if ( dist < 0 )
dist = -dist;
- if (dist >= laxis->standard_width >> 1)
+ if ( dist >= laxis->standard_width >> 1 )
{
/* unlink this serif, it is too distant from its reference stem */
seg->serif = NULL;
@@ -1136,7 +1179,8 @@
/* insert a new edge in the list and */
/* sort according to the position */
- error = af_axis_hints_new_edge( axis, seg->pos, seg->dir, memory, &edge );
+ error = af_axis_hints_new_edge( axis, seg->pos, seg->dir,
+ memory, &edge );
if ( error )
goto Exit;
@@ -1145,9 +1189,10 @@
edge->first = seg;
edge->last = seg;
- edge->fpos = seg->pos;
edge->dir = seg->dir;
- edge->opos = edge->pos = FT_MulFix( seg->pos, scale );
+ edge->fpos = seg->pos;
+ edge->opos = FT_MulFix( seg->pos, scale );
+ edge->pos = edge->opos;
seg->edge_next = seg;
}
else
@@ -1204,8 +1249,10 @@
{
FT_Int is_round = 0; /* does it contain round segments? */
FT_Int is_straight = 0; /* does it contain straight segments? */
+#if 0
FT_Pos ups = 0; /* number of upwards segments */
FT_Pos downs = 0; /* number of downwards segments */
+#endif
seg = edge->first;
@@ -1221,11 +1268,13 @@
else
is_straight++;
+#if 0
/* check for segment direction */
if ( seg->dir == up_dir )
ups += seg->max_coord-seg->min_coord;
else
downs += seg->max_coord-seg->min_coord;
+#endif
/* check for links -- if seg->serif is set, then seg->link must */
/* be ignored */
@@ -1317,7 +1366,7 @@
FT_LOCAL_DEF( FT_Error )
af_latin2_hints_detect_features( AF_GlyphHints hints,
- AF_Dimension dim )
+ AF_Dimension dim )
{
FT_Error error;
@@ -1335,12 +1384,12 @@
FT_LOCAL_DEF( void )
af_latin2_hints_compute_blue_edges( AF_GlyphHints hints,
- AF_LatinMetrics metrics )
+ AF_LatinMetrics metrics )
{
- AF_AxisHints axis = &hints->axis[ AF_DIMENSION_VERT ];
+ AF_AxisHints axis = &hints->axis[AF_DIMENSION_VERT];
AF_Edge edge = axis->edges;
AF_Edge edge_limit = edge + axis->num_edges;
- AF_LatinAxis latin = &metrics->axis[ AF_DIMENSION_VERT ];
+ AF_LatinAxis latin = &metrics->axis[AF_DIMENSION_VERT];
FT_Fixed scale = latin->scale;
FT_Pos best_dist0; /* initial threshold */
@@ -1395,7 +1444,7 @@
compare = &blue->ref;
dist = edge->fpos - compare->org;
- if (dist < 0)
+ if ( dist < 0 )
dist = -dist;
dist = FT_MulFix( dist, scale );
@@ -1441,14 +1490,14 @@
static FT_Error
af_latin2_hints_init( AF_GlyphHints hints,
- AF_LatinMetrics metrics )
+ AF_LatinMetrics metrics )
{
FT_Render_Mode mode;
FT_UInt32 scaler_flags, other_flags;
FT_Face face = metrics->root.scaler.face;
- af_glyph_hints_rescale( hints, (AF_ScriptMetrics)metrics );
+ af_glyph_hints_rescale( hints, (AF_StyleMetrics)metrics );
/*
* correct x_scale and y_scale if needed, since they may have
@@ -1462,7 +1511,7 @@
/* compute flags depending on render mode, etc. */
mode = metrics->root.scaler.render_mode;
-#if 0 /* #ifdef AF_USE_WARPER */
+#if 0 /* #ifdef AF_CONFIG_OPTION_USE_WARPER */
if ( mode == FT_RENDER_MODE_LCD || mode == FT_RENDER_MODE_LCD_V )
{
metrics->root.scaler.render_mode = mode = FT_RENDER_MODE_NORMAL;
@@ -1499,8 +1548,8 @@
* In `light' hinting mode we disable horizontal hinting completely.
* We also do it if the face is italic.
*/
- if ( mode == FT_RENDER_MODE_LIGHT ||
- (face->style_flags & FT_STYLE_FLAG_ITALIC) != 0 )
+ if ( mode == FT_RENDER_MODE_LIGHT ||
+ ( face->style_flags & FT_STYLE_FLAG_ITALIC ) != 0 )
scaler_flags |= AF_SCALER_FLAG_NO_HORIZONTAL;
hints->scaler_flags = scaler_flags;
@@ -1523,8 +1572,8 @@
static FT_Pos
af_latin2_snap_width( AF_Width widths,
- FT_Int count,
- FT_Pos width )
+ FT_Int count,
+ FT_Pos width )
{
int n;
FT_Pos best = 64 + 32 + 2;
@@ -1570,10 +1619,10 @@
static FT_Pos
af_latin2_compute_stem_width( AF_GlyphHints hints,
- AF_Dimension dim,
- FT_Pos width,
- AF_Edge_Flags base_flags,
- AF_Edge_Flags stem_flags )
+ AF_Dimension dim,
+ FT_Pos width,
+ AF_Edge_Flags base_flags,
+ AF_Edge_Flags stem_flags )
{
AF_LatinMetrics metrics = (AF_LatinMetrics) hints->metrics;
AF_LatinAxis axis = & metrics->axis[dim];
@@ -1581,8 +1630,8 @@
FT_Int sign = 0;
FT_Int vertical = ( dim == AF_DIMENSION_VERT );
+ FT_UNUSED( base_flags );
- FT_UNUSED(base_flags);
if ( !AF_LATIN_HINTS_DO_STEM_ADJUST( hints ) ||
axis->extra_light )
@@ -1712,7 +1761,7 @@
if ( delta < 0 )
delta = -delta;
- if (delta >= 16)
+ if ( delta >= 16 )
{
dist = org_dist;
if ( dist < 48 )
@@ -1738,9 +1787,9 @@
static void
af_latin2_align_linked_edge( AF_GlyphHints hints,
- AF_Dimension dim,
- AF_Edge base_edge,
- AF_Edge stem_edge )
+ AF_Dimension dim,
+ AF_Edge base_edge,
+ AF_Edge stem_edge )
{
FT_Pos dist = stem_edge->opos - base_edge->opos;
@@ -1752,21 +1801,21 @@
stem_edge->pos = base_edge->pos + fitted_width;
- AF_LOG(( "LINK: edge %d (opos=%.2f) linked to (%.2f), "
- "dist was %.2f, now %.2f\n",
- stem_edge-hints->axis[dim].edges, stem_edge->opos / 64.0,
- stem_edge->pos / 64.0, dist / 64.0, fitted_width / 64.0 ));
+ FT_TRACE5(( "LINK: edge %d (opos=%.2f) linked to (%.2f), "
+ "dist was %.2f, now %.2f\n",
+ stem_edge-hints->axis[dim].edges, stem_edge->opos / 64.0,
+ stem_edge->pos / 64.0, dist / 64.0, fitted_width / 64.0 ));
}
static void
af_latin2_align_serif_edge( AF_GlyphHints hints,
- AF_Edge base,
- AF_Edge serif )
+ AF_Edge base,
+ AF_Edge serif )
{
FT_UNUSED( hints );
- serif->pos = base->pos + (serif->opos - base->opos);
+ serif->pos = base->pos + ( serif->opos - base->opos );
}
@@ -1783,7 +1832,7 @@
FT_LOCAL_DEF( void )
af_latin2_hint_edges( AF_GlyphHints hints,
- AF_Dimension dim )
+ AF_Dimension dim )
{
AF_AxisHints axis = &hints->axis[dim];
AF_Edge edges = axis->edges;
@@ -1795,7 +1844,8 @@
- AF_LOG(( "==== hinting %s edges =====\n", dim == AF_DIMENSION_HORZ ? "vertical" : "horizontal" ));
+ FT_TRACE5(( "==== hinting %s edges =====\n",
+ dim == AF_DIMENSION_HORZ ? "vertical" : "horizontal" ));
/* we begin by aligning all stems relative to the blue zone */
/* if needed -- that's only for horizontal edges */
@@ -1829,10 +1879,10 @@
if ( !edge1 )
continue;
- AF_LOG(( "BLUE: edge %d (opos=%.2f) snapped to (%.2f), "
- "was (%.2f)\n",
- edge1-edges, edge1->opos / 64.0, blue->fit / 64.0,
- edge1->pos / 64.0 ));
+ FT_TRACE5(( "BLUE: edge %d (opos=%.2f) snapped to (%.2f), "
+ "was (%.2f)\n",
+ edge1-edges, edge1->opos / 64.0, blue->fit / 64.0,
+ edge1->pos / 64.0 ));
edge1->pos = blue->fit;
edge1->flags |= AF_EDGE_DONE;
@@ -1847,9 +1897,10 @@
{
anchor = edge;
- anchor_drift = (anchor->pos - anchor->opos);
- if (edge2)
- anchor_drift = (anchor_drift + (edge2->pos - edge2->opos)) >> 1;
+ anchor_drift = ( anchor->pos - anchor->opos );
+ if ( edge2 )
+ anchor_drift = ( anchor_drift +
+ ( edge2->pos - edge2->opos ) ) >> 1;
}
}
}
@@ -1877,7 +1928,7 @@
/* this should not happen, but it's better to be safe */
if ( edge2->blue_edge )
{
- AF_LOG(( "ASSERTION FAILED for edge %d\n", edge2-edges ));
+ FT_TRACE5(( "ASSERTION FAILED for edge %d\n", edge2-edges ));
af_latin2_align_linked_edge( hints, dim, edge2, edge );
edge->flags |= AF_EDGE_DONE;
@@ -1928,11 +1979,11 @@
else
edge->pos = FT_PIX_ROUND( edge->opos );
- AF_LOG(( "ANCHOR: edge %d (opos=%.2f) and %d (opos=%.2f) "
- "snapped to (%.2f) (%.2f)\n",
- edge-edges, edge->opos / 64.0,
- edge2-edges, edge2->opos / 64.0,
- edge->pos / 64.0, edge2->pos / 64.0 ));
+ FT_TRACE5(( "ANCHOR: edge %d (opos=%.2f) and %d (opos=%.2f)"
+ " snapped to (%.2f) (%.2f)\n",
+ edge-edges, edge->opos / 64.0,
+ edge2-edges, edge2->opos / 64.0,
+ edge->pos / 64.0, edge2->pos / 64.0 ));
anchor = edge;
edge->flags |= AF_EDGE_DONE;
@@ -1941,10 +1992,10 @@
edge2->flags |= AF_EDGE_DONE;
- anchor_drift = ( (anchor->pos - anchor->opos) +
- (edge2->pos - edge2->opos)) >> 1;
+ anchor_drift = ( ( anchor->pos - anchor->opos ) +
+ ( edge2->pos - edge2->opos ) ) >> 1;
- AF_LOG(( "DRIFT: %.2f\n", anchor_drift/64.0 ));
+ FT_TRACE5(( "DRIFT: %.2f\n", anchor_drift/64.0 ));
}
else
{
@@ -1961,15 +2012,16 @@
(AF_Edge_Flags)edge->flags,
(AF_Edge_Flags)edge2->flags );
- org_left = org_pos + ((org_len - cur_len) >> 1);
- org_right = org_pos + ((org_len + cur_len) >> 1);
+ org_left = org_pos + ( ( org_len - cur_len ) >> 1 );
+ org_right = org_pos + ( ( org_len + cur_len ) >> 1 );
- AF_LOG(( "ALIGN: left=%.2f right=%.2f ", org_left/64.0, org_right/64.0 ));
+ FT_TRACE5(( "ALIGN: left=%.2f right=%.2f ",
+ org_left / 64.0, org_right / 64.0 ));
cur_center = org_center;
if ( edge2->flags & AF_EDGE_DONE )
{
- AF_LOG(( "\n" ));
+ FT_TRACE5(( "\n" ));
edge->pos = edge2->pos - cur_len;
}
else
@@ -1984,18 +2036,18 @@
/* note: don't even try to fit tiny stems */
if ( cur_len < 32 )
{
- AF_LOG(( "tiny stem\n" ));
+ FT_TRACE5(( "tiny stem\n" ));
goto AlignStem;
}
/* if the span is within a single pixel, don't touch it */
- if ( FT_PIX_FLOOR(org_left) == FT_PIX_CEIL(org_right) )
+ if ( FT_PIX_FLOOR( org_left ) == FT_PIX_CEIL( org_right ) )
{
- AF_LOG(( "single pixel stem\n" ));
+ FT_TRACE5(( "single pixel stem\n" ));
goto AlignStem;
}
- if (cur_len <= 96)
+ if ( cur_len <= 96 )
{
/* we want to avoid the absolute worst case which is
* when the left and right edges of the span each represent
@@ -2003,43 +2055,43 @@
* to 25/75%, since this is much more pleasant to the eye with
* very acceptable distortion
*/
- FT_Pos frac_left = (org_left) & 63;
- FT_Pos frac_right = (org_right) & 63;
+ FT_Pos frac_left = org_left & 63;
+ FT_Pos frac_right = org_right & 63;
if ( frac_left >= 22 && frac_left <= 42 &&
frac_right >= 22 && frac_right <= 42 )
{
org = frac_left;
- fit = (org <= 32) ? 16 : 48;
- delta = FT_ABS(fit - org);
+ fit = ( org <= 32 ) ? 16 : 48;
+ delta = FT_ABS( fit - org );
displacements[count] = fit - org;
scores[count++] = delta;
- AF_LOG(( "dispA=%.2f (%d) ", (fit - org)/64.0, delta ));
+ FT_TRACE5(( "dispA=%.2f (%d) ", ( fit - org ) / 64.0, delta ));
org = frac_right;
- fit = (org <= 32) ? 16 : 48;
- delta = FT_ABS(fit - org);
+ fit = ( org <= 32 ) ? 16 : 48;
+ delta = FT_ABS( fit - org );
displacements[count] = fit - org;
scores[count++] = delta;
- AF_LOG(( "dispB=%.2f (%d) ", (fit - org)/64.0, delta ));
+ FT_TRACE5(( "dispB=%.2f (%d) ", ( fit - org ) / 64.0, delta ));
}
}
/* snapping the left edge to the grid */
org = org_left;
- fit = FT_PIX_ROUND(org);
- delta = FT_ABS(fit - org);
+ fit = FT_PIX_ROUND( org );
+ delta = FT_ABS( fit - org );
displacements[count] = fit - org;
scores[count++] = delta;
- AF_LOG(( "dispC=%.2f (%d) ", (fit - org)/64.0, delta ));
+ FT_TRACE5(( "dispC=%.2f (%d) ", ( fit - org ) / 64.0, delta ));
/* snapping the right edge to the grid */
org = org_right;
- fit = FT_PIX_ROUND(org);
- delta = FT_ABS(fit - org);
+ fit = FT_PIX_ROUND( org );
+ delta = FT_ABS( fit - org );
displacements[count] = fit - org;
scores[count++] = delta;
- AF_LOG(( "dispD=%.2f (%d) ", (fit - org)/64.0, delta ));
+ FT_TRACE5(( "dispD=%.2f (%d) ", ( fit - org ) / 64.0, delta ));
/* now find the best displacement */
{
@@ -2047,9 +2099,9 @@
FT_Pos best_disp = displacements[0];
FT_UInt nn;
- for (nn = 1; nn < count; nn++)
+ for ( nn = 1; nn < count; nn++ )
{
- if (scores[nn] < best_score)
+ if ( scores[nn] < best_score )
{
best_score = scores[nn];
best_disp = displacements[nn];
@@ -2058,27 +2110,28 @@
cur_center = org_center + best_disp;
}
- AF_LOG(( "\n" ));
+ FT_TRACE5(( "\n" ));
}
AlignStem:
- edge->pos = cur_center - (cur_len >> 1);
+ edge->pos = cur_center - ( cur_len >> 1 );
edge2->pos = edge->pos + cur_len;
- AF_LOG(( "STEM1: %d (opos=%.2f) to %d (opos=%.2f) "
- "snapped to (%.2f) and (%.2f), org_len = %.2f cur_len=%.2f\n",
- edge-edges, edge->opos / 64.0,
- edge2-edges, edge2->opos / 64.0,
- edge->pos / 64.0, edge2->pos / 64.0,
- org_len / 64.0, cur_len / 64.0 ));
+ FT_TRACE5(( "STEM1: %d (opos=%.2f) to %d (opos=%.2f)"
+ " snapped to (%.2f) and (%.2f),"
+ " org_len=%.2f cur_len=%.2f\n",
+ edge-edges, edge->opos / 64.0,
+ edge2-edges, edge2->opos / 64.0,
+ edge->pos / 64.0, edge2->pos / 64.0,
+ org_len / 64.0, cur_len / 64.0 ));
edge->flags |= AF_EDGE_DONE;
edge2->flags |= AF_EDGE_DONE;
if ( edge > edges && edge->pos < edge[-1].pos )
{
- AF_LOG(( "BOUND: %d (pos=%.2f) to (%.2f)\n",
- edge-edges, edge->pos / 64.0, edge[-1].pos / 64.0 ));
+ FT_TRACE5(( "BOUND: %d (pos=%.2f) to (%.2f)\n",
+ edge-edges, edge->pos / 64.0, edge[-1].pos / 64.0 ));
edge->pos = edge[-1].pos;
}
}
@@ -2178,16 +2231,17 @@
if ( delta < 64 + 16 )
{
af_latin2_align_serif_edge( hints, edge->serif, edge );
- AF_LOG(( "SERIF: edge %d (opos=%.2f) serif to %d (opos=%.2f) "
- "aligned to (%.2f)\n",
- edge-edges, edge->opos / 64.0,
- edge->serif - edges, edge->serif->opos / 64.0,
- edge->pos / 64.0 ));
+ FT_TRACE5(( "SERIF: edge %d (opos=%.2f) serif to %d (opos=%.2f)"
+ " aligned to (%.2f)\n",
+ edge-edges, edge->opos / 64.0,
+ edge->serif - edges, edge->serif->opos / 64.0,
+ edge->pos / 64.0 ));
}
else if ( !anchor )
{
- AF_LOG(( "SERIF_ANCHOR: edge %d (opos=%.2f) snapped to (%.2f)\n",
- edge-edges, edge->opos / 64.0, edge->pos / 64.0 ));
+ FT_TRACE5(( "SERIF_ANCHOR: edge %d (opos=%.2f)"
+ " snapped to (%.2f)\n",
+ edge-edges, edge->opos / 64.0, edge->pos / 64.0 ));
edge->pos = FT_PIX_ROUND( edge->opos );
anchor = edge;
}
@@ -2214,15 +2268,19 @@
FT_MulDiv( edge->opos - before->opos,
after->pos - before->pos,
after->opos - before->opos );
- AF_LOG(( "SERIF_LINK1: edge %d (opos=%.2f) snapped to (%.2f) from %d (opos=%.2f)\n",
- edge-edges, edge->opos / 64.0, edge->pos / 64.0, before - edges, before->opos / 64.0 ));
+ FT_TRACE5(( "SERIF_LINK1: edge %d (opos=%.2f) snapped to (%.2f)"
+ " from %d (opos=%.2f)\n",
+ edge-edges, edge->opos / 64.0, edge->pos / 64.0,
+ before - edges, before->opos / 64.0 ));
}
else
{
- edge->pos = anchor->pos + (( edge->opos - anchor->opos + 16) & ~31);
+ edge->pos = anchor->pos +
+ ( ( edge->opos - anchor->opos + 16 ) & ~31 );
- AF_LOG(( "SERIF_LINK2: edge %d (opos=%.2f) snapped to (%.2f)\n",
- edge-edges, edge->opos / 64.0, edge->pos / 64.0 ));
+ FT_TRACE5(( "SERIF_LINK2: edge %d (opos=%.2f)"
+ " snapped to (%.2f)\n",
+ edge-edges, edge->opos / 64.0, edge->pos / 64.0 ));
}
}
@@ -2242,19 +2300,19 @@
static FT_Error
af_latin2_hints_apply( AF_GlyphHints hints,
- FT_Outline* outline,
- AF_LatinMetrics metrics )
+ FT_Outline* outline,
+ AF_LatinMetrics metrics )
{
FT_Error error;
int dim;
- error = af_glyph_hints_reload( hints, outline, 1 );
+ error = af_glyph_hints_reload( hints, outline );
if ( error )
goto Exit;
/* analyze glyph outline */
-#ifdef AF_USE_WARPER
+#ifdef AF_CONFIG_OPTION_USE_WARPER
if ( metrics->root.scaler.render_mode == FT_RENDER_MODE_LIGHT ||
AF_HINTS_DO_HORIZONTAL( hints ) )
#else
@@ -2278,7 +2336,7 @@
/* grid-fit the outline */
for ( dim = 0; dim < AF_DIMENSION_MAX; dim++ )
{
-#ifdef AF_USE_WARPER
+#ifdef AF_CONFIG_OPTION_USE_WARPER
if ( ( dim == AF_DIMENSION_HORZ &&
metrics->root.scaler.render_mode == FT_RENDER_MODE_LIGHT ) )
{
@@ -2318,26 +2376,19 @@
/*************************************************************************/
- static const AF_Script_UniRangeRec af_latin2_uniranges[] =
- {
- AF_UNIRANGE_REC( 32UL, 127UL ), /* XXX: TODO: Add new Unicode ranges here! */
- AF_UNIRANGE_REC( 160UL, 255UL ),
- AF_UNIRANGE_REC( 0UL, 0UL )
- };
-
+ AF_DEFINE_WRITING_SYSTEM_CLASS(
+ af_latin2_writing_system_class,
- AF_DEFINE_SCRIPT_CLASS(af_latin2_script_class,
- AF_SCRIPT_LATIN2,
- af_latin2_uniranges,
+ AF_WRITING_SYSTEM_LATIN2,
- sizeof( AF_LatinMetricsRec ),
+ sizeof ( AF_LatinMetricsRec ),
- (AF_Script_InitMetricsFunc) af_latin2_metrics_init,
- (AF_Script_ScaleMetricsFunc)af_latin2_metrics_scale,
- (AF_Script_DoneMetricsFunc) NULL,
+ (AF_WritingSystem_InitMetricsFunc) af_latin2_metrics_init,
+ (AF_WritingSystem_ScaleMetricsFunc)af_latin2_metrics_scale,
+ (AF_WritingSystem_DoneMetricsFunc) NULL,
- (AF_Script_InitHintsFunc) af_latin2_hints_init,
- (AF_Script_ApplyHintsFunc) af_latin2_hints_apply
+ (AF_WritingSystem_InitHintsFunc) af_latin2_hints_init,
+ (AF_WritingSystem_ApplyHintsFunc) af_latin2_hints_apply
)
diff --git a/src/3rdparty/freetype/src/autofit/aflatin2.h b/src/3rdparty/freetype/src/autofit/aflatin2.h
index 925c6214db..b5d252a91b 100644
--- a/src/3rdparty/freetype/src/autofit/aflatin2.h
+++ b/src/3rdparty/freetype/src/autofit/aflatin2.h
@@ -2,9 +2,10 @@
/* */
/* aflatin2.h */
/* */
-/* Auto-fitter hinting routines for latin script (specification). */
+/* Auto-fitter hinting routines for latin writing system */
+/* (specification). */
/* */
-/* Copyright 2003, 2004, 2005, 2006, 2007 by */
+/* Copyright 2003-2007, 2012, 2013 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -25,9 +26,10 @@
FT_BEGIN_HEADER
- /* the latin-specific script class */
+ /* the `latin' writing system */
+
+ AF_DECLARE_WRITING_SYSTEM_CLASS( af_latin2_writing_system_class )
- AF_DECLARE_SCRIPT_CLASS(af_latin2_script_class)
/* */
diff --git a/src/3rdparty/freetype/src/autofit/afloader.c b/src/3rdparty/freetype/src/autofit/afloader.c
index 6dd9f2a314..fb15c87f0e 100644
--- a/src/3rdparty/freetype/src/autofit/afloader.c
+++ b/src/3rdparty/freetype/src/autofit/afloader.c
@@ -4,7 +4,7 @@
/* */
/* Auto-fitter glyph loading routines (body). */
/* */
-/* Copyright 2003, 2004, 2005, 2006, 2007, 2008, 2009 by */
+/* Copyright 2003-2009, 2011-2014 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -16,31 +16,41 @@
/***************************************************************************/
+#include "afglobal.h"
#include "afloader.h"
#include "afhints.h"
-#include "afglobal.h"
#include "aferrors.h"
+#include "afmodule.h"
+#include "afpic.h"
+ /* Initialize glyph loader. */
+
FT_LOCAL_DEF( FT_Error )
- af_loader_init( AF_Loader loader,
- FT_Memory memory )
+ af_loader_init( AF_Module module )
{
+ AF_Loader loader = module->loader;
+ FT_Memory memory = module->root.library->memory;
+
+
FT_ZERO( loader );
af_glyph_hints_init( &loader->hints, memory );
-#ifdef AF_DEBUG
+#ifdef FT_DEBUG_AUTOFIT
_af_debug_hints = &loader->hints;
#endif
return FT_GlyphLoader_New( memory, &loader->gloader );
}
+ /* Reset glyph loader and compute globals if necessary. */
+
FT_LOCAL_DEF( FT_Error )
- af_loader_reset( AF_Loader loader,
+ af_loader_reset( AF_Module module,
FT_Face face )
{
- FT_Error error = AF_Err_Ok;
+ FT_Error error = FT_Err_Ok;
+ AF_Loader loader = module->loader;
loader->face = face;
@@ -50,7 +60,7 @@
if ( loader->globals == NULL )
{
- error = af_face_globals_new( face, &loader->globals );
+ error = af_face_globals_new( face, &loader->globals, module );
if ( !error )
{
face->autohint.data =
@@ -64,15 +74,20 @@
}
+ /* Finalize glyph loader. */
+
FT_LOCAL_DEF( void )
- af_loader_done( AF_Loader loader )
+ af_loader_done( AF_Module module )
{
+ AF_Loader loader = module->loader;
+
+
af_glyph_hints_done( &loader->hints );
loader->face = NULL;
loader->globals = NULL;
-#ifdef AF_DEBUG
+#ifdef FT_DEBUG_AUTOFIT
_af_debug_hints = NULL;
#endif
FT_GlyphLoader_Done( loader->gloader );
@@ -80,6 +95,10 @@
}
+ /* Load a single glyph component. This routine calls itself */
+ /* recursively, if necessary, and does the main work of */
+ /* `af_loader_load_glyph.' */
+
static FT_Error
af_loader_load_g( AF_Loader loader,
AF_Scaler scaler,
@@ -90,13 +109,15 @@
FT_Error error;
FT_Face face = loader->face;
FT_GlyphLoader gloader = loader->gloader;
- AF_ScriptMetrics metrics = loader->metrics;
+ AF_StyleMetrics metrics = loader->metrics;
AF_GlyphHints hints = &loader->hints;
FT_GlyphSlot slot = face->glyph;
FT_Slot_Internal internal = slot->internal;
+ FT_Int32 flags;
- error = FT_Load_Glyph( face, glyph_index, load_flags );
+ flags = load_flags | FT_LOAD_LINEAR_DESIGN;
+ error = FT_Load_Glyph( face, glyph_index, flags );
if ( error )
goto Exit;
@@ -110,14 +131,10 @@
loader->trans_delta = internal->glyph_delta;
inverse = loader->trans_matrix;
- FT_Matrix_Invert( &inverse );
- FT_Vector_Transform( &loader->trans_delta, &inverse );
+ if ( !FT_Matrix_Invert( &inverse ) )
+ FT_Vector_Transform( &loader->trans_delta, &inverse );
}
- /* set linear metrics */
- slot->linearHoriAdvance = slot->metrics.horiAdvance;
- slot->linearVertAdvance = slot->metrics.vertAdvance;
-
switch ( slot->format )
{
case FT_GLYPH_FORMAT_OUTLINE:
@@ -127,8 +144,8 @@
loader->trans_delta.x,
loader->trans_delta.y );
- /* copy the outline points in the loader's current */
- /* extra points which is used to keep original glyph coordinates */
+ /* copy the outline points in the loader's current */
+ /* extra points which are used to keep original glyph coordinates */
error = FT_GLYPHLOADER_CHECK_POINTS( gloader,
slot->outline.n_points + 4,
slot->outline.n_contours );
@@ -164,13 +181,23 @@
/* now load the slot image into the auto-outline and run the */
/* automatic hinting process */
- if ( metrics->clazz->script_hints_apply )
- metrics->clazz->script_hints_apply( hints,
- &gloader->current.outline,
- metrics );
+ {
+#ifdef FT_CONFIG_OPTION_PIC
+ AF_FaceGlobals globals = loader->globals;
+#endif
+ AF_StyleClass style_class = metrics->style_class;
+ AF_WritingSystemClass writing_system_class =
+ AF_WRITING_SYSTEM_CLASSES_GET[style_class->writing_system];
- /* we now need to hint the metrics according to the change in */
- /* width/positioning that occurred during the hinting process */
+
+ if ( writing_system_class->style_hints_apply )
+ writing_system_class->style_hints_apply( hints,
+ &gloader->current.outline,
+ metrics );
+ }
+
+ /* we now need to adjust the metrics according to the change in */
+ /* width/positioning that occurred during the hinting process */
if ( scaler->render_mode != FT_RENDER_MODE_LIGHT )
{
FT_Pos old_rsb, old_lsb, new_lsb;
@@ -265,7 +292,7 @@
gloader->current.num_subglyphs = num_subglyphs;
num_base_subgs = gloader->base.num_subglyphs;
- /* now, read each subglyph independently */
+ /* now read each subglyph independently */
for ( nn = 0; nn < num_subglyphs; nn++ )
{
FT_Vector pp1, pp2;
@@ -291,12 +318,7 @@
/* recompute subglyph pointer */
subglyph = gloader->base.subglyphs + num_base_subgs + nn;
- if ( subglyph->flags & FT_SUBGLYPH_FLAG_USE_MY_METRICS )
- {
- pp1 = loader->pp1;
- pp2 = loader->pp2;
- }
- else
+ if ( !( subglyph->flags & FT_SUBGLYPH_FLAG_USE_MY_METRICS ) )
{
loader->pp1 = pp1;
loader->pp2 = pp2;
@@ -305,7 +327,7 @@
num_points = gloader->base.outline.n_points;
num_new_points = num_points - num_base_points;
- /* now perform the transform required for this subglyph */
+ /* now perform the transformation required for this subglyph */
if ( subglyph->flags & ( FT_SUBGLYPH_FLAG_SCALE |
FT_SUBGLYPH_FLAG_XY_SCALE |
@@ -333,14 +355,14 @@
if ( start_point + k >= num_base_points ||
l >= (FT_UInt)num_new_points )
{
- error = AF_Err_Invalid_Composite;
+ error = FT_THROW( Invalid_Composite );
goto Exit;
}
l += num_base_points;
- /* for now, only use the current point coordinates; */
- /* we may consider another approach in the near future */
+ /* for now, only use the current point coordinates; */
+ /* we eventually may consider another approach */
p1 = gloader->base.outline.points + start_point + k;
p2 = gloader->base.outline.points + start_point + l;
@@ -371,7 +393,7 @@
default:
/* we don't support other formats (yet?) */
- error = AF_Err_Unimplemented_Feature;
+ error = FT_THROW( Unimplemented_Feature );
}
Hint_Metrics:
@@ -423,9 +445,10 @@
slot->metrics.horiAdvance = FT_MulFix( slot->metrics.horiAdvance,
x_scale );
#else
- if ( FT_IS_FIXED_WIDTH( slot->face ) ||
- ( af_face_globals_is_digit( loader->globals, glyph_index ) &&
- metrics->digits_have_same_width ) )
+ if ( scaler->render_mode != FT_RENDER_MODE_LIGHT &&
+ ( FT_IS_FIXED_WIDTH( slot->face ) ||
+ ( af_face_globals_is_digit( loader->globals, glyph_index ) &&
+ metrics->digits_have_same_width ) ) )
{
slot->metrics.horiAdvance = FT_MulFix( slot->metrics.horiAdvance,
metrics->scaler.x_scale );
@@ -444,7 +467,7 @@
#endif
slot->metrics.vertAdvance = FT_MulFix( slot->metrics.vertAdvance,
- metrics->scaler.y_scale );
+ metrics->scaler.y_scale );
slot->metrics.horiAdvance = FT_PIX_ROUND( slot->metrics.horiAdvance );
slot->metrics.vertAdvance = FT_PIX_ROUND( slot->metrics.vertAdvance );
@@ -455,32 +478,37 @@
if ( error )
goto Exit;
- slot->outline = internal->loader->base.outline;
+ /* reassign all outline fields except flags to protect them */
+ slot->outline.n_contours = internal->loader->base.outline.n_contours;
+ slot->outline.n_points = internal->loader->base.outline.n_points;
+ slot->outline.points = internal->loader->base.outline.points;
+ slot->outline.tags = internal->loader->base.outline.tags;
+ slot->outline.contours = internal->loader->base.outline.contours;
+
slot->format = FT_GLYPH_FORMAT_OUTLINE;
}
-#ifdef DEBUG_HINTER
- af_debug_hinter = hinter;
-#endif
-
Exit:
return error;
}
+ /* Load a glyph. */
+
FT_LOCAL_DEF( FT_Error )
- af_loader_load_glyph( AF_Loader loader,
+ af_loader_load_glyph( AF_Module module,
FT_Face face,
FT_UInt gindex,
- FT_UInt32 load_flags )
+ FT_Int32 load_flags )
{
FT_Error error;
- FT_Size size = face->size;
+ FT_Size size = face->size;
+ AF_Loader loader = module->loader;
AF_ScalerRec scaler;
if ( !size )
- return AF_Err_Invalid_Argument;
+ return FT_THROW( Invalid_Size_Handle );
FT_ZERO( &scaler );
@@ -493,37 +521,45 @@
scaler.render_mode = FT_LOAD_TARGET_MODE( load_flags );
scaler.flags = 0; /* XXX: fix this */
- error = af_loader_reset( loader, face );
+ error = af_loader_reset( module, face );
if ( !error )
{
- AF_ScriptMetrics metrics;
- FT_UInt options = 0;
+ AF_StyleMetrics metrics;
+ FT_UInt options = AF_STYLE_NONE_DFLT;
#ifdef FT_OPTION_AUTOFIT2
- /* XXX: undocumented hook to activate the latin2 hinter */
+ /* XXX: undocumented hook to activate the latin2 writing system */
if ( load_flags & ( 1UL << 20 ) )
- options = 2;
+ options = AF_STYLE_LTN2_DFLT;
#endif
error = af_face_globals_get_metrics( loader->globals, gindex,
options, &metrics );
if ( !error )
{
+#ifdef FT_CONFIG_OPTION_PIC
+ AF_FaceGlobals globals = loader->globals;
+#endif
+ AF_StyleClass style_class = metrics->style_class;
+ AF_WritingSystemClass writing_system_class =
+ AF_WRITING_SYSTEM_CLASSES_GET[style_class->writing_system];
+
+
loader->metrics = metrics;
- if ( metrics->clazz->script_metrics_scale )
- metrics->clazz->script_metrics_scale( metrics, &scaler );
+ if ( writing_system_class->style_metrics_scale )
+ writing_system_class->style_metrics_scale( metrics, &scaler );
else
metrics->scaler = scaler;
load_flags |= FT_LOAD_NO_SCALE | FT_LOAD_IGNORE_TRANSFORM;
load_flags &= ~FT_LOAD_RENDER;
- if ( metrics->clazz->script_hints_init )
+ if ( writing_system_class->style_hints_init )
{
- error = metrics->clazz->script_hints_init( &loader->hints,
- metrics );
+ error = writing_system_class->style_hints_init( &loader->hints,
+ metrics );
if ( error )
goto Exit;
}
diff --git a/src/3rdparty/freetype/src/autofit/afloader.h b/src/3rdparty/freetype/src/autofit/afloader.h
index fa67c10ffe..9601e24fce 100644
--- a/src/3rdparty/freetype/src/autofit/afloader.h
+++ b/src/3rdparty/freetype/src/autofit/afloader.h
@@ -4,7 +4,7 @@
/* */
/* Auto-fitter glyph loading routines (specification). */
/* */
-/* Copyright 2003, 2004, 2005 by */
+/* Copyright 2003-2005, 2011-2013 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -16,8 +16,8 @@
/***************************************************************************/
-#ifndef __AF_LOADER_H__
-#define __AF_LOADER_H__
+#ifndef __AFLOADER_H__
+#define __AFLOADER_H__
#include "afhints.h"
#include "afglobal.h"
@@ -25,13 +25,26 @@
FT_BEGIN_HEADER
- typedef struct AF_LoaderRec_
+ typedef struct AF_ModuleRec_* AF_Module;
+
+ /*
+ * The autofitter module's (global) data structure to communicate with
+ * actual fonts. If necessary, `local' data like the current face, the
+ * current face's auto-hint data, or the current glyph's parameters
+ * relevant to auto-hinting are `swapped in'. Cf. functions like
+ * `af_loader_reset' and `af_loader_load_g'.
+ */
+
+ typedef struct AF_LoaderRec_
{
- FT_Face face; /* current face */
- AF_FaceGlobals globals; /* current face globals */
- FT_GlyphLoader gloader; /* glyph loader */
+ /* current face data */
+ FT_Face face;
+ AF_FaceGlobals globals;
+
+ /* current glyph data */
+ FT_GlyphLoader gloader;
AF_GlyphHintsRec hints;
- AF_ScriptMetrics metrics;
+ AF_StyleMetrics metrics;
FT_Bool transformed;
FT_Matrix trans_matrix;
FT_Vector trans_delta;
@@ -43,31 +56,30 @@ FT_BEGIN_HEADER
FT_LOCAL( FT_Error )
- af_loader_init( AF_Loader loader,
- FT_Memory memory );
+ af_loader_init( AF_Module module );
FT_LOCAL( FT_Error )
- af_loader_reset( AF_Loader loader,
+ af_loader_reset( AF_Module module,
FT_Face face );
FT_LOCAL( void )
- af_loader_done( AF_Loader loader );
+ af_loader_done( AF_Module module );
FT_LOCAL( FT_Error )
- af_loader_load_glyph( AF_Loader loader,
+ af_loader_load_glyph( AF_Module module,
FT_Face face,
FT_UInt gindex,
- FT_UInt32 load_flags );
+ FT_Int32 load_flags );
/* */
FT_END_HEADER
-#endif /* __AF_LOADER_H__ */
+#endif /* __AFLOADER_H__ */
/* END */
diff --git a/src/3rdparty/freetype/src/autofit/afmodule.c b/src/3rdparty/freetype/src/autofit/afmodule.c
index ec2d707c9f..641e03ea2b 100644
--- a/src/3rdparty/freetype/src/autofit/afmodule.c
+++ b/src/3rdparty/freetype/src/autofit/afmodule.c
@@ -4,7 +4,7 @@
/* */
/* Auto-fitter module implementation (body). */
/* */
-/* Copyright 2003, 2004, 2005, 2006 by */
+/* Copyright 2003-2006, 2009, 2011-2014 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -16,12 +16,13 @@
/***************************************************************************/
+#include "afglobal.h"
#include "afmodule.h"
#include "afloader.h"
+#include "aferrors.h"
#include "afpic.h"
-#ifdef AF_DEBUG
- int _af_debug;
+#ifdef FT_DEBUG_AUTOFIT
int _af_debug_disable_horz_hints;
int _af_debug_disable_vert_hints;
int _af_debug_disable_blue_hints;
@@ -29,66 +30,280 @@
#endif
#include FT_INTERNAL_OBJECTS_H
+#include FT_INTERNAL_DEBUG_H
+#include FT_AUTOHINTER_H
+#include FT_SERVICE_PROPERTIES_H
- typedef struct FT_AutofitterRec_
+ /*************************************************************************/
+ /* */
+ /* The macro FT_COMPONENT is used in trace mode. It is an implicit */
+ /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */
+ /* messages during execution. */
+ /* */
+#undef FT_COMPONENT
+#define FT_COMPONENT trace_afmodule
+
+
+ static FT_Error
+ af_property_get_face_globals( FT_Face face,
+ AF_FaceGlobals* aglobals,
+ AF_Module module )
+ {
+ FT_Error error = FT_Err_Ok;
+ AF_FaceGlobals globals;
+
+
+ if ( !face )
+ return FT_THROW( Invalid_Face_Handle );
+
+ globals = (AF_FaceGlobals)face->autohint.data;
+ if ( !globals )
+ {
+ /* trigger computation of the global style data */
+ /* in case it hasn't been done yet */
+ error = af_face_globals_new( face, &globals, module );
+ if ( !error )
+ {
+ face->autohint.data =
+ (FT_Pointer)globals;
+ face->autohint.finalizer =
+ (FT_Generic_Finalizer)af_face_globals_free;
+ }
+ }
+
+ if ( !error )
+ *aglobals = globals;
+
+ return error;
+ }
+
+
+ static FT_Error
+ af_property_set( FT_Module ft_module,
+ const char* property_name,
+ const void* value )
+ {
+ FT_Error error = FT_Err_Ok;
+ AF_Module module = (AF_Module)ft_module;
+
+
+ if ( !ft_strcmp( property_name, "fallback-script" ) )
+ {
+ FT_UInt* fallback_script = (FT_UInt*)value;
+
+ FT_UInt ss;
+
+
+ /* We translate the fallback script to a fallback style that uses */
+ /* `fallback-script' as its script and `AF_COVERAGE_NONE' as its */
+ /* coverage value. */
+ for ( ss = 0; AF_STYLE_CLASSES_GET[ss]; ss++ )
+ {
+ AF_StyleClass style_class = AF_STYLE_CLASSES_GET[ss];
+
+
+ if ( (FT_UInt)style_class->script == *fallback_script &&
+ style_class->coverage == AF_COVERAGE_DEFAULT )
+ {
+ module->fallback_style = ss;
+ break;
+ }
+ }
+
+ if ( !AF_STYLE_CLASSES_GET[ss] )
+ {
+ FT_TRACE0(( "af_property_set: Invalid value %d for property `%s'\n",
+ fallback_script, property_name ));
+ return FT_THROW( Invalid_Argument );
+ }
+
+ return error;
+ }
+ else if ( !ft_strcmp( property_name, "default-script" ) )
+ {
+ FT_UInt* default_script = (FT_UInt*)value;
+
+
+ module->default_script = *default_script;
+
+ return error;
+ }
+ else if ( !ft_strcmp( property_name, "increase-x-height" ) )
+ {
+ FT_Prop_IncreaseXHeight* prop = (FT_Prop_IncreaseXHeight*)value;
+ AF_FaceGlobals globals;
+
+
+ error = af_property_get_face_globals( prop->face, &globals, module );
+ if ( !error )
+ globals->increase_x_height = prop->limit;
+
+ return error;
+ }
+
+ FT_TRACE0(( "af_property_set: missing property `%s'\n",
+ property_name ));
+ return FT_THROW( Missing_Property );
+ }
+
+
+ static FT_Error
+ af_property_get( FT_Module ft_module,
+ const char* property_name,
+ void* value )
+ {
+ FT_Error error = FT_Err_Ok;
+ AF_Module module = (AF_Module)ft_module;
+ FT_UInt fallback_style = module->fallback_style;
+ FT_UInt default_script = module->default_script;
+
+
+ if ( !ft_strcmp( property_name, "glyph-to-script-map" ) )
+ {
+ FT_Prop_GlyphToScriptMap* prop = (FT_Prop_GlyphToScriptMap*)value;
+ AF_FaceGlobals globals;
+
+
+ error = af_property_get_face_globals( prop->face, &globals, module );
+ if ( !error )
+ prop->map = globals->glyph_styles;
+
+ return error;
+ }
+ else if ( !ft_strcmp( property_name, "fallback-script" ) )
+ {
+ FT_UInt* val = (FT_UInt*)value;
+
+ AF_StyleClass style_class = AF_STYLE_CLASSES_GET[fallback_style];
+
+
+ *val = style_class->script;
+
+ return error;
+ }
+ else if ( !ft_strcmp( property_name, "default-script" ) )
+ {
+ FT_UInt* val = (FT_UInt*)value;
+
+
+ *val = default_script;
+
+ return error;
+ }
+ else if ( !ft_strcmp( property_name, "increase-x-height" ) )
+ {
+ FT_Prop_IncreaseXHeight* prop = (FT_Prop_IncreaseXHeight*)value;
+ AF_FaceGlobals globals;
+
+
+ error = af_property_get_face_globals( prop->face, &globals, module );
+ if ( !error )
+ prop->limit = globals->increase_x_height;
+
+ return error;
+ }
+
+
+ FT_TRACE0(( "af_property_get: missing property `%s'\n",
+ property_name ));
+ return FT_THROW( Missing_Property );
+ }
+
+
+ FT_DEFINE_SERVICE_PROPERTIESREC(
+ af_service_properties,
+ (FT_Properties_SetFunc)af_property_set,
+ (FT_Properties_GetFunc)af_property_get )
+
+
+ FT_DEFINE_SERVICEDESCREC1(
+ af_services,
+ FT_SERVICE_ID_PROPERTIES, &AF_SERVICE_PROPERTIES_GET )
+
+
+ FT_CALLBACK_DEF( FT_Module_Interface )
+ af_get_interface( FT_Module module,
+ const char* module_interface )
{
- FT_ModuleRec root;
- AF_LoaderRec loader[1];
+ /* AF_SERVICES_GET dereferences `library' in PIC mode */
+#ifdef FT_CONFIG_OPTION_PIC
+ FT_Library library;
+
+
+ if ( !module )
+ return NULL;
+ library = module->library;
+ if ( !library )
+ return NULL;
+#else
+ FT_UNUSED( module );
+#endif
- } FT_AutofitterRec, *FT_Autofitter;
+ return ft_service_list_lookup( AF_SERVICES_GET, module_interface );
+ }
FT_CALLBACK_DEF( FT_Error )
- af_autofitter_init( FT_Autofitter module )
+ af_autofitter_init( FT_Module ft_module ) /* AF_Module */
{
- return af_loader_init( module->loader, module->root.library->memory );
+ AF_Module module = (AF_Module)ft_module;
+
+
+ module->fallback_style = AF_STYLE_FALLBACK;
+ module->default_script = AF_SCRIPT_DEFAULT;
+
+ return af_loader_init( module );
}
FT_CALLBACK_DEF( void )
- af_autofitter_done( FT_Autofitter module )
+ af_autofitter_done( FT_Module ft_module ) /* AF_Module */
{
- af_loader_done( module->loader );
+ AF_Module module = (AF_Module)ft_module;
+
+
+ af_loader_done( module );
}
FT_CALLBACK_DEF( FT_Error )
- af_autofitter_load_glyph( FT_Autofitter module,
- FT_GlyphSlot slot,
- FT_Size size,
- FT_UInt glyph_index,
- FT_Int32 load_flags )
+ af_autofitter_load_glyph( AF_Module module,
+ FT_GlyphSlot slot,
+ FT_Size size,
+ FT_UInt glyph_index,
+ FT_Int32 load_flags )
{
FT_UNUSED( size );
- return af_loader_load_glyph( module->loader, slot->face,
+ return af_loader_load_glyph( module, slot->face,
glyph_index, load_flags );
}
- FT_DEFINE_AUTOHINTER_SERVICE(af_autofitter_service,
- NULL,
- NULL,
- NULL,
- (FT_AutoHinter_GlyphLoadFunc)af_autofitter_load_glyph
- )
+ FT_DEFINE_AUTOHINTER_INTERFACE(
+ af_autofitter_interface,
+ NULL, /* reset_face */
+ NULL, /* get_global_hints */
+ NULL, /* done_global_hints */
+ (FT_AutoHinter_GlyphLoadFunc)af_autofitter_load_glyph ) /* load_glyph */
+
- FT_DEFINE_MODULE(autofit_module_class,
+ FT_DEFINE_MODULE(
+ autofit_module_class,
FT_MODULE_HINTER,
- sizeof ( FT_AutofitterRec ),
+ sizeof ( AF_ModuleRec ),
"autofitter",
0x10000L, /* version 1.0 of the autofitter */
0x20000L, /* requires FreeType 2.0 or above */
- (const void*)&AF_AF_AUTOFITTER_SERVICE_GET,
+ (const void*)&AF_INTERFACE_GET,
(FT_Module_Constructor)af_autofitter_init,
(FT_Module_Destructor) af_autofitter_done,
- (FT_Module_Requester) NULL
- )
+ (FT_Module_Requester) af_get_interface )
/* END */
diff --git a/src/3rdparty/freetype/src/autofit/afmodule.h b/src/3rdparty/freetype/src/autofit/afmodule.h
index d9792399b6..20b7b9f665 100644
--- a/src/3rdparty/freetype/src/autofit/afmodule.h
+++ b/src/3rdparty/freetype/src/autofit/afmodule.h
@@ -4,7 +4,7 @@
/* */
/* Auto-fitter module implementation (specification). */
/* */
-/* Copyright 2003, 2004, 2005 by */
+/* Copyright 2003-2005, 2009, 2012, 2013 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -23,9 +23,31 @@
#include FT_INTERNAL_OBJECTS_H
#include FT_MODULE_H
+#include "afloader.h"
+
FT_BEGIN_HEADER
+
+ /*
+ * This is the `extended' FT_Module structure which holds the
+ * autofitter's global data. Right before hinting a glyph, the data
+ * specific to the glyph's face (blue zones, stem widths, etc.) are
+ * loaded into `loader' (see function `af_loader_reset').
+ */
+
+ typedef struct AF_ModuleRec_
+ {
+ FT_ModuleRec root;
+
+ FT_UInt fallback_style;
+ FT_UInt default_script;
+
+ AF_LoaderRec loader[1];
+
+ } AF_ModuleRec;
+
+
FT_DECLARE_MODULE(autofit_module_class)
diff --git a/src/3rdparty/freetype/src/autofit/afpic.c b/src/3rdparty/freetype/src/autofit/afpic.c
index 76822c301a..cb29fd79fe 100644
--- a/src/3rdparty/freetype/src/autofit/afpic.c
+++ b/src/3rdparty/freetype/src/autofit/afpic.c
@@ -4,7 +4,7 @@
/* */
/* The FreeType position independent code services for autofit module. */
/* */
-/* Copyright 2009 by */
+/* Copyright 2009-2014 by */
/* Oran Agra and Mickey Gabel. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -20,72 +20,132 @@
#include FT_FREETYPE_H
#include FT_INTERNAL_OBJECTS_H
#include "afpic.h"
+#include "afglobal.h"
+#include "aferrors.h"
+
#ifdef FT_CONFIG_OPTION_PIC
/* forward declaration of PIC init functions from afmodule.c */
- void FT_Init_Class_af_autofitter_service( FT_Library, FT_AutoHinter_ServiceRec*);
+ FT_Error
+ FT_Create_Class_af_services( FT_Library library,
+ FT_ServiceDescRec** output_class );
- /* forward declaration of PIC init functions from script classes */
-#include "aflatin.h"
-#include "aflatin2.h"
-#include "afcjk.h"
-#include "afdummy.h"
-#include "afindic.h"
+ void
+ FT_Destroy_Class_af_services( FT_Library library,
+ FT_ServiceDescRec* clazz );
void
- autofit_module_class_pic_free( FT_Library library )
+ FT_Init_Class_af_service_properties( FT_Service_PropertiesRec* clazz );
+
+ void FT_Init_Class_af_autofitter_interface(
+ FT_Library library,
+ FT_AutoHinter_InterfaceRec* clazz );
+
+
+ /* forward declaration of PIC init functions from writing system classes */
+#undef WRITING_SYSTEM
+#define WRITING_SYSTEM( ws, WS ) /* empty */
+
+#include "afwrtsys.h"
+
+
+ void
+ autofit_module_class_pic_free( FT_Library library )
{
- FT_PIC_Container* pic_container = &library->pic_container;
- FT_Memory memory = library->memory;
+ FT_PIC_Container* pic_container = &library->pic_container;
+ FT_Memory memory = library->memory;
+
+
if ( pic_container->autofit )
{
- FT_FREE( pic_container->autofit );
+ AFModulePIC* container = (AFModulePIC*)pic_container->autofit;
+
+
+ if ( container->af_services )
+ FT_Destroy_Class_af_services( library,
+ container->af_services );
+ container->af_services = NULL;
+
+ FT_FREE( container );
pic_container->autofit = NULL;
}
}
+
FT_Error
- autofit_module_class_pic_init( FT_Library library )
+ autofit_module_class_pic_init( FT_Library library )
{
- FT_PIC_Container* pic_container = &library->pic_container;
- FT_UInt ss;
- FT_Error error = FT_Err_Ok;
- AFModulePIC* container;
- FT_Memory memory = library->memory;
+ FT_PIC_Container* pic_container = &library->pic_container;
+ FT_UInt ss;
+ FT_Error error = FT_Err_Ok;
+ AFModulePIC* container = NULL;
+ FT_Memory memory = library->memory;
+
/* allocate pointer, clear and set global container pointer */
if ( FT_ALLOC ( container, sizeof ( *container ) ) )
return error;
- FT_MEM_SET( container, 0, sizeof(*container) );
+ FT_MEM_SET( container, 0, sizeof ( *container ) );
pic_container->autofit = container;
- /* initialize pointer table - this is how the module usually expects this data */
- for ( ss = 0 ; ss < AF_SCRIPT_CLASSES_REC_COUNT ; ss++ )
- {
- container->af_script_classes[ss] = &container->af_script_classes_rec[ss];
- }
- container->af_script_classes[AF_SCRIPT_CLASSES_COUNT-1] = NULL;
-
- /* add call to initialization function when you add new scripts */
+ /* initialize pointer table - */
+ /* this is how the module usually expects this data */
+ error = FT_Create_Class_af_services( library,
+ &container->af_services );
+ if ( error )
+ goto Exit;
+
+ FT_Init_Class_af_service_properties( &container->af_service_properties );
+
+ for ( ss = 0; ss < AF_WRITING_SYSTEM_MAX; ss++ )
+ container->af_writing_system_classes[ss] =
+ &container->af_writing_system_classes_rec[ss];
+ container->af_writing_system_classes[AF_WRITING_SYSTEM_MAX] = NULL;
+
+ for ( ss = 0; ss < AF_SCRIPT_MAX; ss++ )
+ container->af_script_classes[ss] =
+ &container->af_script_classes_rec[ss];
+ container->af_script_classes[AF_SCRIPT_MAX] = NULL;
+
+ for ( ss = 0; ss < AF_STYLE_MAX; ss++ )
+ container->af_style_classes[ss] =
+ &container->af_style_classes_rec[ss];
+ container->af_style_classes[AF_STYLE_MAX] = NULL;
+
+#undef WRITING_SYSTEM
+#define WRITING_SYSTEM( ws, WS ) \
+ FT_Init_Class_af_ ## ws ## _writing_system_class( \
+ &container->af_writing_system_classes_rec[ss++] );
+
ss = 0;
- FT_Init_Class_af_dummy_script_class(&container->af_script_classes_rec[ss++]);
-#ifdef FT_OPTION_AUTOFIT2
- FT_Init_Class_af_latin2_script_class(&container->af_script_classes_rec[ss++]);
-#endif
- FT_Init_Class_af_latin_script_class(&container->af_script_classes_rec[ss++]);
- FT_Init_Class_af_cjk_script_class(&container->af_script_classes_rec[ss++]);
- FT_Init_Class_af_indic_script_class(&container->af_script_classes_rec[ss++]);
-
- FT_Init_Class_af_autofitter_service(library, &container->af_autofitter_service);
-
-/*Exit:*/
- if(error)
- autofit_module_class_pic_free(library);
+#include "afwrtsys.h"
+
+#undef SCRIPT
+#define SCRIPT( s, S, d, h, sc1, sc2, sc3 ) \
+ FT_Init_Class_af_ ## s ## _script_class( \
+ &container->af_script_classes_rec[ss++] );
+
+ ss = 0;
+#include "afscript.h"
+
+#undef STYLE
+#define STYLE( s, S, d, ws, sc, bss, c ) \
+ FT_Init_Class_af_ ## s ## _style_class( \
+ &container->af_style_classes_rec[ss++] );
+
+ ss = 0;
+#include "afstyles.h"
+
+ FT_Init_Class_af_autofitter_interface(
+ library, &container->af_autofitter_interface );
+
+ Exit:
+ if ( error )
+ autofit_module_class_pic_free( library );
return error;
}
-
#endif /* FT_CONFIG_OPTION_PIC */
diff --git a/src/3rdparty/freetype/src/autofit/afpic.h b/src/3rdparty/freetype/src/autofit/afpic.h
index 80e62d39a9..9a68b4a5a2 100644
--- a/src/3rdparty/freetype/src/autofit/afpic.h
+++ b/src/3rdparty/freetype/src/autofit/afpic.h
@@ -4,7 +4,7 @@
/* */
/* The FreeType position independent code services for autofit module. */
/* */
-/* Copyright 2009 by */
+/* Copyright 2009, 2011-2013 by */
/* Oran Agra and Mickey Gabel. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -19,38 +19,79 @@
#ifndef __AFPIC_H__
#define __AFPIC_H__
-
+
FT_BEGIN_HEADER
#include FT_INTERNAL_PIC_H
+
#ifndef FT_CONFIG_OPTION_PIC
-#define AF_SCRIPT_CLASSES_GET af_script_classes
-#define AF_AF_AUTOFITTER_SERVICE_GET af_autofitter_service
+#define AF_SERVICES_GET af_services
+#define AF_SERVICE_PROPERTIES_GET af_service_properties
+
+#define AF_WRITING_SYSTEM_CLASSES_GET af_writing_system_classes
+#define AF_SCRIPT_CLASSES_GET af_script_classes
+#define AF_STYLE_CLASSES_GET af_style_classes
+#define AF_INTERFACE_GET af_autofitter_interface
#else /* FT_CONFIG_OPTION_PIC */
+ /* some include files required for members of AFModulePIC */
+#include FT_SERVICE_PROPERTIES_H
+
#include "aftypes.h"
-/* increase these when you add new scripts, and update autofit_module_class_pic_init */
-#ifdef FT_OPTION_AUTOFIT2
- #define AF_SCRIPT_CLASSES_COUNT 6
-#else
- #define AF_SCRIPT_CLASSES_COUNT 5
-#endif
-#define AF_SCRIPT_CLASSES_REC_COUNT (AF_SCRIPT_CLASSES_COUNT-1)
- typedef struct AFModulePIC_
+ typedef struct AFModulePIC_
{
- AF_ScriptClass af_script_classes[AF_SCRIPT_CLASSES_COUNT];
- AF_ScriptClassRec af_script_classes_rec[AF_SCRIPT_CLASSES_REC_COUNT];
- FT_AutoHinter_ServiceRec af_autofitter_service;
+ FT_ServiceDescRec* af_services;
+ FT_Service_PropertiesRec af_service_properties;
+
+ AF_WritingSystemClass af_writing_system_classes
+ [AF_WRITING_SYSTEM_MAX + 1];
+ AF_WritingSystemClassRec af_writing_system_classes_rec
+ [AF_WRITING_SYSTEM_MAX];
+
+ AF_ScriptClass af_script_classes
+ [AF_SCRIPT_MAX + 1];
+ AF_ScriptClassRec af_script_classes_rec
+ [AF_SCRIPT_MAX];
+
+ AF_StyleClass af_style_classes
+ [AF_STYLE_MAX + 1];
+ AF_StyleClassRec af_style_classes_rec
+ [AF_STYLE_MAX];
+
+ FT_AutoHinter_InterfaceRec af_autofitter_interface;
+
} AFModulePIC;
-#define GET_PIC(lib) ((AFModulePIC*)((lib)->pic_container.autofit))
-#define AF_SCRIPT_CLASSES_GET (GET_PIC(FT_FACE_LIBRARY(globals->face))->af_script_classes)
-#define AF_AF_AUTOFITTER_SERVICE_GET (GET_PIC(library)->af_autofitter_service)
+
+#define GET_PIC( lib ) \
+ ( (AFModulePIC*)((lib)->pic_container.autofit) )
+
+#define AF_SERVICES_GET \
+ ( GET_PIC( library )->af_services )
+#define AF_SERVICE_PROPERTIES_GET \
+ ( GET_PIC( library )->af_service_properties )
+
+#define AF_WRITING_SYSTEM_CLASSES_GET \
+ ( GET_PIC( FT_FACE_LIBRARY( globals->face ) )->af_writing_system_classes )
+#define AF_SCRIPT_CLASSES_GET \
+ ( GET_PIC( FT_FACE_LIBRARY( globals->face ) )->af_script_classes )
+#define AF_STYLE_CLASSES_GET \
+ ( GET_PIC( FT_FACE_LIBRARY( globals->face ) )->af_style_classes )
+#define AF_INTERFACE_GET \
+ ( GET_PIC( library )->af_autofitter_interface )
+
+
+ /* see afpic.c for the implementation */
+ void
+ autofit_module_class_pic_free( FT_Library library );
+
+ FT_Error
+ autofit_module_class_pic_init( FT_Library library );
#endif /* FT_CONFIG_OPTION_PIC */
diff --git a/src/3rdparty/freetype/src/autofit/afranges.c b/src/3rdparty/freetype/src/autofit/afranges.c
new file mode 100644
index 0000000000..b2c504d426
--- /dev/null
+++ b/src/3rdparty/freetype/src/autofit/afranges.c
@@ -0,0 +1,220 @@
+/***************************************************************************/
+/* */
+/* afranges.c */
+/* */
+/* Auto-fitter Unicode script ranges (body). */
+/* */
+/* Copyright 2013, 2014 by */
+/* David Turner, Robert Wilhelm, and Werner Lemberg. */
+/* */
+/* This file is part of the FreeType project, and may only be used, */
+/* modified, and distributed under the terms of the FreeType project */
+/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
+/* this file you indicate that you have read the license and */
+/* understand and accept it fully. */
+/* */
+/***************************************************************************/
+
+
+#include "afranges.h"
+
+
+ const AF_Script_UniRangeRec af_cyrl_uniranges[] =
+ {
+ AF_UNIRANGE_REC( 0x0400UL, 0x04FFUL ), /* Cyrillic */
+ AF_UNIRANGE_REC( 0x0500UL, 0x052FUL ), /* Cyrillic Supplement */
+ AF_UNIRANGE_REC( 0x2DE0UL, 0x2DFFUL ), /* Cyrillic Extended-A */
+ AF_UNIRANGE_REC( 0xA640UL, 0xA69FUL ), /* Cyrillic Extended-B */
+ AF_UNIRANGE_REC( 0UL, 0UL )
+ };
+
+ /* there are some characters in the Devanagari Unicode block that are */
+ /* generic to Indic scripts; we omit them so that their presence doesn't */
+ /* trigger Devanagari */
+
+ const AF_Script_UniRangeRec af_deva_uniranges[] =
+ {
+ AF_UNIRANGE_REC( 0x0900UL, 0x093BUL ), /* Devanagari */
+ /* omitting U+093C nukta */
+ AF_UNIRANGE_REC( 0x093DUL, 0x0950UL ),
+ /* omitting U+0951 udatta, U+0952 anudatta */
+ AF_UNIRANGE_REC( 0x0953UL, 0x0963UL ),
+ /* omitting U+0964 danda, U+0965 double danda */
+ AF_UNIRANGE_REC( 0x0966UL, 0x097FUL ),
+ AF_UNIRANGE_REC( 0x20B9UL, 0x20B9UL ), /* (new) Rupee sign */
+ AF_UNIRANGE_REC( 0UL, 0UL )
+ };
+
+ const AF_Script_UniRangeRec af_grek_uniranges[] =
+ {
+ AF_UNIRANGE_REC( 0x0370UL, 0x03FFUL ), /* Greek and Coptic */
+ AF_UNIRANGE_REC( 0x1F00UL, 0x1FFFUL ), /* Greek Extended */
+ AF_UNIRANGE_REC( 0UL, 0UL )
+ };
+
+ const AF_Script_UniRangeRec af_hebr_uniranges[] =
+ {
+ AF_UNIRANGE_REC( 0x0590UL, 0x05FFUL ), /* Hebrew */
+ AF_UNIRANGE_REC( 0xFB1DUL, 0xFB4FUL ), /* Alphab. Present. Forms (Hebrew) */
+ AF_UNIRANGE_REC( 0UL, 0UL )
+ };
+
+ const AF_Script_UniRangeRec af_latn_uniranges[] =
+ {
+ AF_UNIRANGE_REC( 0x0020UL, 0x007FUL ), /* Basic Latin (no control chars) */
+ AF_UNIRANGE_REC( 0x00A0UL, 0x00FFUL ), /* Latin-1 Supplement (no control chars) */
+ AF_UNIRANGE_REC( 0x0100UL, 0x017FUL ), /* Latin Extended-A */
+ AF_UNIRANGE_REC( 0x0180UL, 0x024FUL ), /* Latin Extended-B */
+ AF_UNIRANGE_REC( 0x0250UL, 0x02AFUL ), /* IPA Extensions */
+ AF_UNIRANGE_REC( 0x02B0UL, 0x02FFUL ), /* Spacing Modifier Letters */
+ AF_UNIRANGE_REC( 0x0300UL, 0x036FUL ), /* Combining Diacritical Marks */
+ AF_UNIRANGE_REC( 0x1D00UL, 0x1D7FUL ), /* Phonetic Extensions */
+ AF_UNIRANGE_REC( 0x1D80UL, 0x1DBFUL ), /* Phonetic Extensions Supplement */
+ AF_UNIRANGE_REC( 0x1DC0UL, 0x1DFFUL ), /* Combining Diacritical Marks Supplement */
+ AF_UNIRANGE_REC( 0x1E00UL, 0x1EFFUL ), /* Latin Extended Additional */
+ AF_UNIRANGE_REC( 0x2000UL, 0x206FUL ), /* General Punctuation */
+ AF_UNIRANGE_REC( 0x2070UL, 0x209FUL ), /* Superscripts and Subscripts */
+ AF_UNIRANGE_REC( 0x20A0UL, 0x20B8UL ), /* Currency Symbols ... */
+ AF_UNIRANGE_REC( 0x20BAUL, 0x20CFUL ), /* ... except new Rupee sign */
+ AF_UNIRANGE_REC( 0x2150UL, 0x218FUL ), /* Number Forms */
+ AF_UNIRANGE_REC( 0x2460UL, 0x24FFUL ), /* Enclosed Alphanumerics */
+ AF_UNIRANGE_REC( 0x2C60UL, 0x2C7FUL ), /* Latin Extended-C */
+ AF_UNIRANGE_REC( 0x2E00UL, 0x2E7FUL ), /* Supplemental Punctuation */
+ AF_UNIRANGE_REC( 0xA720UL, 0xA7FFUL ), /* Latin Extended-D */
+ AF_UNIRANGE_REC( 0xFB00UL, 0xFB06UL ), /* Alphab. Present. Forms (Latin Ligs) */
+ AF_UNIRANGE_REC( 0x1D400UL, 0x1D7FFUL ), /* Mathematical Alphanumeric Symbols */
+ AF_UNIRANGE_REC( 0x1F100UL, 0x1F1FFUL ), /* Enclosed Alphanumeric Supplement */
+ AF_UNIRANGE_REC( 0UL, 0UL )
+ };
+
+ const AF_Script_UniRangeRec af_none_uniranges[] =
+ {
+ AF_UNIRANGE_REC( 0UL, 0UL )
+ };
+
+ const AF_Script_UniRangeRec af_telu_uniranges[] =
+ {
+ AF_UNIRANGE_REC( 0x0C00UL, 0x0C7FUL ), /* Telugu */
+ AF_UNIRANGE_REC( 0UL, 0UL )
+ };
+
+#ifdef AF_CONFIG_OPTION_INDIC
+
+ const AF_Script_UniRangeRec af_beng_uniranges[] =
+ {
+ AF_UNIRANGE_REC( 0x0980UL, 0x09FFUL ), /* Bengali */
+ AF_UNIRANGE_REC( 0UL, 0UL )
+ };
+
+ const AF_Script_UniRangeRec af_gujr_uniranges[] =
+ {
+ AF_UNIRANGE_REC( 0x0A80UL, 0x0AFFUL ), /* Gujarati */
+ AF_UNIRANGE_REC( 0UL, 0UL )
+ };
+
+ const AF_Script_UniRangeRec af_guru_uniranges[] =
+ {
+ AF_UNIRANGE_REC( 0x0A00UL, 0x0A7FUL ), /* Gurmukhi */
+ AF_UNIRANGE_REC( 0UL, 0UL )
+ };
+
+ const AF_Script_UniRangeRec af_knda_uniranges[] =
+ {
+ AF_UNIRANGE_REC( 0x0C80UL, 0x0CFFUL ), /* Kannada */
+ AF_UNIRANGE_REC( 0UL, 0UL )
+ };
+
+ const AF_Script_UniRangeRec af_limb_uniranges[] =
+ {
+ AF_UNIRANGE_REC( 0x1900UL, 0x194FUL ), /* Limbu */
+ AF_UNIRANGE_REC( 0UL, 0UL )
+ };
+
+ const AF_Script_UniRangeRec af_mlym_uniranges[] =
+ {
+ AF_UNIRANGE_REC( 0x0D00UL, 0x0D7FUL ), /* Malayalam */
+ AF_UNIRANGE_REC( 0UL, 0UL )
+ };
+
+ const AF_Script_UniRangeRec af_orya_uniranges[] =
+ {
+ AF_UNIRANGE_REC( 0x0B00UL, 0x0B7FUL ), /* Oriya */
+ AF_UNIRANGE_REC( 0UL, 0UL )
+ };
+
+ const AF_Script_UniRangeRec af_sinh_uniranges[] =
+ {
+ AF_UNIRANGE_REC( 0x0D80UL, 0x0DFFUL ), /* Sinhala */
+ AF_UNIRANGE_REC( 0UL, 0UL )
+ };
+
+ const AF_Script_UniRangeRec af_sund_uniranges[] =
+ {
+ AF_UNIRANGE_REC( 0x1B80UL, 0x1BBFUL ), /* Sundanese */
+ AF_UNIRANGE_REC( 0UL, 0UL )
+ };
+
+ const AF_Script_UniRangeRec af_sylo_uniranges[] =
+ {
+ AF_UNIRANGE_REC( 0xA800UL, 0xA82FUL ), /* Syloti Nagri */
+ AF_UNIRANGE_REC( 0UL, 0UL )
+ };
+
+ const AF_Script_UniRangeRec af_taml_uniranges[] =
+ {
+ AF_UNIRANGE_REC( 0x0B80UL, 0x0BFFUL ), /* Tamil */
+ AF_UNIRANGE_REC( 0UL, 0UL )
+ };
+
+ const AF_Script_UniRangeRec af_tibt_uniranges[] =
+ {
+ AF_UNIRANGE_REC( 0x0F00UL, 0x0FFFUL ), /* Tibetan */
+ AF_UNIRANGE_REC( 0UL, 0UL )
+ };
+
+#endif /* !AF_CONFIG_OPTION_INDIC */
+
+#ifdef AF_CONFIG_OPTION_CJK
+
+ /* this corresponds to Unicode 6.0 */
+
+ const AF_Script_UniRangeRec af_hani_uniranges[] =
+ {
+ AF_UNIRANGE_REC( 0x1100UL, 0x11FFUL ), /* Hangul Jamo */
+ AF_UNIRANGE_REC( 0x2E80UL, 0x2EFFUL ), /* CJK Radicals Supplement */
+ AF_UNIRANGE_REC( 0x2F00UL, 0x2FDFUL ), /* Kangxi Radicals */
+ AF_UNIRANGE_REC( 0x2FF0UL, 0x2FFFUL ), /* Ideographic Description Characters */
+ AF_UNIRANGE_REC( 0x3000UL, 0x303FUL ), /* CJK Symbols and Punctuation */
+ AF_UNIRANGE_REC( 0x3040UL, 0x309FUL ), /* Hiragana */
+ AF_UNIRANGE_REC( 0x30A0UL, 0x30FFUL ), /* Katakana */
+ AF_UNIRANGE_REC( 0x3100UL, 0x312FUL ), /* Bopomofo */
+ AF_UNIRANGE_REC( 0x3130UL, 0x318FUL ), /* Hangul Compatibility Jamo */
+ AF_UNIRANGE_REC( 0x3190UL, 0x319FUL ), /* Kanbun */
+ AF_UNIRANGE_REC( 0x31A0UL, 0x31BFUL ), /* Bopomofo Extended */
+ AF_UNIRANGE_REC( 0x31C0UL, 0x31EFUL ), /* CJK Strokes */
+ AF_UNIRANGE_REC( 0x31F0UL, 0x31FFUL ), /* Katakana Phonetic Extensions */
+ AF_UNIRANGE_REC( 0x3200UL, 0x32FFUL ), /* Enclosed CJK Letters and Months */
+ AF_UNIRANGE_REC( 0x3300UL, 0x33FFUL ), /* CJK Compatibility */
+ AF_UNIRANGE_REC( 0x3400UL, 0x4DBFUL ), /* CJK Unified Ideographs Extension A */
+ AF_UNIRANGE_REC( 0x4DC0UL, 0x4DFFUL ), /* Yijing Hexagram Symbols */
+ AF_UNIRANGE_REC( 0x4E00UL, 0x9FFFUL ), /* CJK Unified Ideographs */
+ AF_UNIRANGE_REC( 0xA960UL, 0xA97FUL ), /* Hangul Jamo Extended-A */
+ AF_UNIRANGE_REC( 0xAC00UL, 0xD7AFUL ), /* Hangul Syllables */
+ AF_UNIRANGE_REC( 0xD7B0UL, 0xD7FFUL ), /* Hangul Jamo Extended-B */
+ AF_UNIRANGE_REC( 0xF900UL, 0xFAFFUL ), /* CJK Compatibility Ideographs */
+ AF_UNIRANGE_REC( 0xFE10UL, 0xFE1FUL ), /* Vertical forms */
+ AF_UNIRANGE_REC( 0xFE30UL, 0xFE4FUL ), /* CJK Compatibility Forms */
+ AF_UNIRANGE_REC( 0xFF00UL, 0xFFEFUL ), /* Halfwidth and Fullwidth Forms */
+ AF_UNIRANGE_REC( 0x1B000UL, 0x1B0FFUL ), /* Kana Supplement */
+ AF_UNIRANGE_REC( 0x1D300UL, 0x1D35FUL ), /* Tai Xuan Hing Symbols */
+ AF_UNIRANGE_REC( 0x1F200UL, 0x1F2FFUL ), /* Enclosed Ideographic Supplement */
+ AF_UNIRANGE_REC( 0x20000UL, 0x2A6DFUL ), /* CJK Unified Ideographs Extension B */
+ AF_UNIRANGE_REC( 0x2A700UL, 0x2B73FUL ), /* CJK Unified Ideographs Extension C */
+ AF_UNIRANGE_REC( 0x2B740UL, 0x2B81FUL ), /* CJK Unified Ideographs Extension D */
+ AF_UNIRANGE_REC( 0x2F800UL, 0x2FA1FUL ), /* CJK Compatibility Ideographs Supplement */
+ AF_UNIRANGE_REC( 0UL, 0UL )
+ };
+
+#endif /* !AF_CONFIG_OPTION_CJK */
+
+/* END */
diff --git a/src/3rdparty/freetype/src/autofit/afranges.h b/src/3rdparty/freetype/src/autofit/afranges.h
new file mode 100644
index 0000000000..fe5b2aa7c1
--- /dev/null
+++ b/src/3rdparty/freetype/src/autofit/afranges.h
@@ -0,0 +1,41 @@
+/***************************************************************************/
+/* */
+/* afranges.h */
+/* */
+/* Auto-fitter Unicode script ranges (specification). */
+/* */
+/* Copyright 2013, 2014 by */
+/* David Turner, Robert Wilhelm, and Werner Lemberg. */
+/* */
+/* This file is part of the FreeType project, and may only be used, */
+/* modified, and distributed under the terms of the FreeType project */
+/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
+/* this file you indicate that you have read the license and */
+/* understand and accept it fully. */
+/* */
+/***************************************************************************/
+
+
+#ifndef __AFRANGES_H__
+#define __AFRANGES_H__
+
+
+#include "aftypes.h"
+
+
+FT_BEGIN_HEADER
+
+#undef SCRIPT
+#define SCRIPT( s, S, d, h, sc1, sc2, sc3 ) \
+ extern const AF_Script_UniRangeRec af_ ## s ## _uniranges[];
+
+#include "afscript.h"
+
+ /* */
+
+FT_END_HEADER
+
+#endif /* __AFRANGES_H__ */
+
+
+/* END */
diff --git a/src/3rdparty/freetype/src/autofit/afscript.h b/src/3rdparty/freetype/src/autofit/afscript.h
new file mode 100644
index 0000000000..efe8754df8
--- /dev/null
+++ b/src/3rdparty/freetype/src/autofit/afscript.h
@@ -0,0 +1,139 @@
+/***************************************************************************/
+/* */
+/* afscript.h */
+/* */
+/* Auto-fitter scripts (specification only). */
+/* */
+/* Copyright 2013, 2014 by */
+/* David Turner, Robert Wilhelm, and Werner Lemberg. */
+/* */
+/* This file is part of the FreeType project, and may only be used, */
+/* modified, and distributed under the terms of the FreeType project */
+/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
+/* this file you indicate that you have read the license and */
+/* understand and accept it fully. */
+/* */
+/***************************************************************************/
+
+
+ /* The following part can be included multiple times. */
+ /* Define `SCRIPT' as needed. */
+
+
+ /* Add new scripts here. The first and second arguments are the */
+ /* script name in lowercase and uppercase, respectively, followed */
+ /* by a description string. Then comes the corresponding HarfBuzz */
+ /* script name tag, followed by a string of standard characters (to */
+ /* derive the standard width and height of stems). */
+
+ SCRIPT( cyrl, CYRL,
+ "Cyrillic",
+ HB_SCRIPT_CYRILLIC,
+ 0x43E, 0x41E, 0x0 ) /* оО */
+
+ SCRIPT( deva, DEVA,
+ "Devanagari",
+ HB_SCRIPT_DEVANAGARI,
+ 0x920, 0x935, 0x91F ) /* ठ व ट */
+
+ SCRIPT( grek, GREK,
+ "Greek",
+ HB_SCRIPT_GREEK,
+ 0x3BF, 0x39F, 0x0 ) /* οΟ */
+
+ SCRIPT( hebr, HEBR,
+ "Hebrew",
+ HB_SCRIPT_HEBREW,
+ 0x5DD, 0x0, 0x0 ) /* ם */
+
+ SCRIPT( latn, LATN,
+ "Latin",
+ HB_SCRIPT_LATIN,
+ 'o', 'O', '0' )
+
+ SCRIPT( none, NONE,
+ "no script",
+ HB_SCRIPT_INVALID,
+ 0x0, 0x0, 0x0 )
+
+ /* there are no simple forms for letters; we thus use two digit shapes */
+ SCRIPT( telu, TELU,
+ "Telugu",
+ HB_SCRIPT_TELUGU,
+ 0xC66, 0xC67, 0x0 ) /* ౦ ౧ */
+
+#ifdef AF_CONFIG_OPTION_INDIC
+
+ SCRIPT( beng, BENG,
+ "Bengali",
+ HB_SCRIPT_BENGALI,
+ 'o', 0x0, 0x0 ) /* XXX */
+
+ SCRIPT( gujr, GUJR,
+ "Gujarati",
+ HB_SCRIPT_GUJARATI,
+ 'o', 0x0, 0x0 ) /* XXX */
+
+ SCRIPT( guru, GURU,
+ "Gurmukhi",
+ HB_SCRIPT_GURMUKHI,
+ 'o', 0x0, 0x0 ) /* XXX */
+
+ SCRIPT( knda, KNDA,
+ "Kannada",
+ HB_SCRIPT_KANNADA,
+ 'o', 0x0, 0x0 ) /* XXX */
+
+ SCRIPT( limb, LIMB,
+ "Limbu",
+ HB_SCRIPT_LIMBU,
+ 'o', 0x0, 0x0 ) /* XXX */
+
+ SCRIPT( mlym, MLYM,
+ "Malayalam",
+ HB_SCRIPT_MALAYALAM,
+ 'o', 0x0, 0x0 ) /* XXX */
+
+ SCRIPT( orya, ORYA,
+ "Oriya",
+ HB_SCRIPT_ORIYA,
+ 'o', 0x0, 0x0 ) /* XXX */
+
+ SCRIPT( sinh, SINH,
+ "Sinhala",
+ HB_SCRIPT_SINHALA,
+ 'o', 0x0, 0x0 ) /* XXX */
+
+ SCRIPT( sund, SUND,
+ "Sundanese",
+ HB_SCRIPT_SUNDANESE,
+ 'o', 0x0, 0x0 ) /* XXX */
+
+ SCRIPT( sylo, SYLO,
+ "Syloti Nagri",
+ HB_SCRIPT_SYLOTI_NAGRI,
+ 'o', 0x0, 0x0 ) /* XXX */
+
+ SCRIPT( taml, TAML,
+ "Tamil",
+ HB_SCRIPT_TAMIL,
+ 'o', 0x0, 0x0 ) /* XXX */
+
+ SCRIPT( tibt, TIBT,
+ "Tibetan",
+ HB_SCRIPT_TIBETAN,
+ 'o', 0x0, 0x0 ) /* XXX */
+
+#endif /* AF_CONFIG_OPTION_INDIC */
+
+#ifdef AF_CONFIG_OPTION_CJK
+
+ SCRIPT( hani, HANI,
+ "CJKV ideographs",
+ HB_SCRIPT_HAN,
+ 0x7530, 0x56D7, 0x0 ) /* 田囗 */
+
+#endif /* AF_CONFIG_OPTION_CJK */
+
+
+/* END */
diff --git a/src/3rdparty/freetype/src/autofit/afstyles.h b/src/3rdparty/freetype/src/autofit/afstyles.h
new file mode 100644
index 0000000000..f14d354ccb
--- /dev/null
+++ b/src/3rdparty/freetype/src/autofit/afstyles.h
@@ -0,0 +1,164 @@
+/***************************************************************************/
+/* */
+/* afstyles.h */
+/* */
+/* Auto-fitter styles (specification only). */
+/* */
+/* Copyright 2013, 2014 by */
+/* David Turner, Robert Wilhelm, and Werner Lemberg. */
+/* */
+/* This file is part of the FreeType project, and may only be used, */
+/* modified, and distributed under the terms of the FreeType project */
+/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
+/* this file you indicate that you have read the license and */
+/* understand and accept it fully. */
+/* */
+/***************************************************************************/
+
+
+ /* The following part can be included multiple times. */
+ /* Define `STYLE' as needed. */
+
+
+ /* Add new styles here. The first and second arguments are the */
+ /* style name in lowercase and uppercase, respectively, followed */
+ /* by a description string. The next arguments are the */
+ /* corresponding writing system, script, blue stringset, and */
+ /* coverage. */
+ /* */
+ /* Note that styles using `AF_COVERAGE_DEFAULT' should always */
+ /* come after styles with other coverages. */
+ /* */
+ /* Example: */
+ /* */
+ /* STYLE( cyrl_dflt, CYRL_DFLT, */
+ /* "Cyrillic default style", */
+ /* AF_WRITING_SYSTEM_LATIN, */
+ /* AF_SCRIPT_CYRL, */
+ /* AF_BLUE_STRINGSET_CYRL, */
+ /* AF_COVERAGE_DEFAULT ) */
+
+#undef STYLE_LATIN
+#define STYLE_LATIN( s, S, f, F, ds, df, C ) \
+ STYLE( s ## _ ## f, S ## _ ## F, \
+ ds " " df " style", \
+ AF_WRITING_SYSTEM_LATIN, \
+ AF_SCRIPT_ ## S, \
+ AF_BLUE_STRINGSET_ ## S, \
+ AF_COVERAGE_ ## C )
+
+#undef META_STYLE_LATIN
+#define META_STYLE_LATIN( s, S, ds ) \
+ STYLE_LATIN( s, S, c2cp, C2CP, ds, \
+ "petite capticals from capitals", \
+ PETITE_CAPITALS_FROM_CAPITALS ) \
+ STYLE_LATIN( s, S, c2sc, C2SC, ds, \
+ "small capticals from capitals", \
+ SMALL_CAPITALS_FROM_CAPITALS ) \
+ STYLE_LATIN( s, S, ordn, ORDN, ds, \
+ "ordinals", \
+ ORDINALS ) \
+ STYLE_LATIN( s, S, pcap, PCAP, ds, \
+ "petite capitals", \
+ PETITE_CAPITALS ) \
+ STYLE_LATIN( s, S, sinf, SINF, ds, \
+ "scientific inferiors", \
+ SCIENTIFIC_INFERIORS ) \
+ STYLE_LATIN( s, S, smcp, SMCP, ds, \
+ "small capitals", \
+ SMALL_CAPITALS ) \
+ STYLE_LATIN( s, S, subs, SUBS, ds, \
+ "subscript", \
+ SUBSCRIPT ) \
+ STYLE_LATIN( s, S, sups, SUPS, ds, \
+ "superscript", \
+ SUPERSCRIPT ) \
+ STYLE_LATIN( s, S, titl, TITL, ds, \
+ "titling", \
+ TITLING ) \
+ STYLE_LATIN( s, S, dflt, DFLT, ds, \
+ "default", \
+ DEFAULT )
+
+ META_STYLE_LATIN( cyrl, CYRL, "Cyrillic" )
+
+ META_STYLE_LATIN( grek, GREK, "Greek" )
+
+ STYLE( hebr_dflt, HEBR_DFLT,
+ "Hebrew default style",
+ AF_WRITING_SYSTEM_LATIN,
+ AF_SCRIPT_HEBR,
+ AF_BLUE_STRINGSET_HEBR,
+ AF_COVERAGE_DEFAULT )
+ META_STYLE_LATIN( latn, LATN, "Latin" )
+
+ STYLE( deva_dflt, DEVA_DFLT,
+ "Devanagari default style",
+ AF_WRITING_SYSTEM_LATIN,
+ AF_SCRIPT_DEVA,
+ AF_BLUE_STRINGSET_DEVA,
+ AF_COVERAGE_DEFAULT )
+
+#ifdef FT_OPTION_AUTOFIT2
+ STYLE( ltn2_dflt, LTN2_DFLT,
+ "Latin 2 default style",
+ AF_WRITING_SYSTEM_LATIN2,
+ AF_SCRIPT_LATN,
+ AF_BLUE_STRINGSET_LATN,
+ AF_COVERAGE_DEFAULT )
+#endif
+
+ STYLE( none_dflt, NONE_DFLT,
+ "no style",
+ AF_WRITING_SYSTEM_DUMMY,
+ AF_SCRIPT_NONE,
+ (AF_Blue_Stringset)0,
+ AF_COVERAGE_DEFAULT )
+
+ STYLE( telu_dflt, TELU_DFLT,
+ "Telugu default style",
+ AF_WRITING_SYSTEM_LATIN,
+ AF_SCRIPT_TELU,
+ AF_BLUE_STRINGSET_TELU,
+ AF_COVERAGE_DEFAULT )
+
+#ifdef AF_CONFIG_OPTION_INDIC
+
+ /* no blue stringset support for the Indic writing system yet */
+#undef STYLE_DEFAULT_INDIC
+#define STYLE_DEFAULT_INDIC( s, S, d ) \
+ STYLE( s ## _dflt, S ## _DFLT, \
+ d " default style", \
+ AF_WRITING_SYSTEM_INDIC, \
+ AF_SCRIPT_ ## S, \
+ (AF_Blue_Stringset)0, \
+ AF_COVERAGE_DEFAULT )
+
+ STYLE_DEFAULT_INDIC( beng, BENG, "Bengali" )
+ STYLE_DEFAULT_INDIC( gujr, GUJR, "Gujarati" )
+ STYLE_DEFAULT_INDIC( guru, GURU, "Gurmukhi" )
+ STYLE_DEFAULT_INDIC( knda, KNDA, "Kannada" )
+ STYLE_DEFAULT_INDIC( limb, LIMB, "Limbu" )
+ STYLE_DEFAULT_INDIC( mlym, MLYM, "Malayalam" )
+ STYLE_DEFAULT_INDIC( orya, ORYA, "Oriya" )
+ STYLE_DEFAULT_INDIC( sinh, SINH, "Sinhala" )
+ STYLE_DEFAULT_INDIC( sund, SUND, "Sundanese" )
+ STYLE_DEFAULT_INDIC( sylo, SYLO, "Syloti Nagri" )
+ STYLE_DEFAULT_INDIC( taml, TAML, "Tamil" )
+ STYLE_DEFAULT_INDIC( tibt, TIBT, "Tibetan" )
+
+#endif /* AF_CONFIG_OPTION_INDIC */
+
+#ifdef AF_CONFIG_OPTION_CJK
+
+ STYLE( hani_dflt, HANI_DFLT,
+ "CJKV ideographs default style",
+ AF_WRITING_SYSTEM_CJK,
+ AF_SCRIPT_HANI,
+ AF_BLUE_STRINGSET_HANI,
+ AF_COVERAGE_DEFAULT )
+
+#endif /* AF_CONFIG_OPTION_CJK */
+
+
+/* END */
diff --git a/src/3rdparty/freetype/src/autofit/aftypes.h b/src/3rdparty/freetype/src/autofit/aftypes.h
index 5574f0c302..61badd1b8d 100644
--- a/src/3rdparty/freetype/src/autofit/aftypes.h
+++ b/src/3rdparty/freetype/src/autofit/aftypes.h
@@ -4,7 +4,7 @@
/* */
/* Auto-fitter types (specification only). */
/* */
-/* Copyright 2003, 2004, 2005, 2006, 2007, 2008, 2009 by */
+/* Copyright 2003-2009, 2011-2014 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -20,15 +20,12 @@
*
* The auto-fitter is a complete rewrite of the old auto-hinter.
* Its main feature is the ability to differentiate between different
- * scripts in order to apply language-specific rules.
+ * writing systems and scripts in order to apply specific rules.
*
* The code has also been compartmentized into several entities that
* should make algorithmic experimentation easier than with the old
* code.
*
- * Finally, we get rid of the Catharon license, since this code is
- * released under the FreeType one.
- *
*************************************************************************/
@@ -42,6 +39,8 @@
#include FT_INTERNAL_OBJECTS_H
#include FT_INTERNAL_DEBUG_H
+#include "afblue.h"
+
FT_BEGIN_HEADER
@@ -53,26 +52,16 @@ FT_BEGIN_HEADER
/*************************************************************************/
/*************************************************************************/
-#define xxAF_USE_WARPER /* only define to use warp hinting */
-#define xxAF_DEBUG
-
-#ifdef AF_DEBUG
+#ifdef FT_DEBUG_AUTOFIT
#include FT_CONFIG_STANDARD_LIBRARY_H
-#define AF_LOG( x ) do { if ( _af_debug ) printf x; } while ( 0 )
-
-extern int _af_debug;
extern int _af_debug_disable_horz_hints;
extern int _af_debug_disable_vert_hints;
extern int _af_debug_disable_blue_hints;
extern void* _af_debug_hints;
-#else /* !AF_DEBUG */
-
-#define AF_LOG( x ) do { } while ( 0 ) /* nothing */
-
-#endif /* !AF_DEBUG */
+#endif /* FT_DEBUG_AUTOFIT */
/*************************************************************************/
@@ -97,8 +86,9 @@ extern void* _af_debug_hints;
FT_Pos* table );
FT_LOCAL( void )
- af_sort_widths( FT_UInt count,
- AF_Width widths );
+ af_sort_and_quantize_widths( FT_UInt* count,
+ AF_Width widths,
+ FT_Pos threshold );
/*************************************************************************/
@@ -159,36 +149,11 @@ extern void* _af_debug_hints;
FT_END_STMNT
- /*************************************************************************/
- /*************************************************************************/
- /***** *****/
- /***** O U T L I N E S *****/
- /***** *****/
- /*************************************************************************/
- /*************************************************************************/
-
/* opaque handle to glyph-specific hints -- see `afhints.h' for more
* details
*/
typedef struct AF_GlyphHintsRec_* AF_GlyphHints;
- /* This structure is used to model an input glyph outline to
- * the auto-hinter. The latter will set the `hints' field
- * depending on the glyph's script.
- */
- typedef struct AF_OutlineRec_
- {
- FT_Face face;
- FT_Outline outline;
- FT_UInt outline_resolution;
-
- FT_Int advance;
- FT_UInt metrics_resolution;
-
- AF_GlyphHints hints;
-
- } AF_OutlineRec;
-
/*************************************************************************/
/*************************************************************************/
@@ -232,87 +197,124 @@ extern void* _af_debug_hints;
(a)->y_delta == (b)->y_delta )
+ typedef struct AF_StyleMetricsRec_* AF_StyleMetrics;
+
+ /* This function parses an FT_Face to compute global metrics for
+ * a specific style.
+ */
+ typedef FT_Error
+ (*AF_WritingSystem_InitMetricsFunc)( AF_StyleMetrics metrics,
+ FT_Face face );
+
+ typedef void
+ (*AF_WritingSystem_ScaleMetricsFunc)( AF_StyleMetrics metrics,
+ AF_Scaler scaler );
+
+ typedef void
+ (*AF_WritingSystem_DoneMetricsFunc)( AF_StyleMetrics metrics );
+
+
+ typedef FT_Error
+ (*AF_WritingSystem_InitHintsFunc)( AF_GlyphHints hints,
+ AF_StyleMetrics metrics );
+
+ typedef void
+ (*AF_WritingSystem_ApplyHintsFunc)( AF_GlyphHints hints,
+ FT_Outline* outline,
+ AF_StyleMetrics metrics );
+
+
/*************************************************************************/
/*************************************************************************/
/***** *****/
- /***** S C R I P T S *****/
+ /***** W R I T I N G S Y S T E M S *****/
/***** *****/
/*************************************************************************/
/*************************************************************************/
/*
- * The list of know scripts. Each different script corresponds to the
- * following information:
- *
- * - A set of Unicode ranges to test whether the face supports the
- * script.
- *
- * - A specific global analyzer that will compute global metrics
- * specific to the script.
+ * For the auto-hinter, a writing system consists of multiple scripts that
+ * can be handled similarly *in a typographical way*; the relationship is
+ * not based on history. For example, both the Greek and the unrelated
+ * Armenian scripts share the same features like ascender, descender,
+ * x-height, etc. Essentially, a writing system is covered by a
+ * submodule of the auto-fitter; it contains
*
- * - A specific glyph analyzer that will compute segments and
- * edges for each glyph covered by the script.
+ * - a specific global analyzer that computes global metrics specific to
+ * the script (based on script-specific characters to identify ascender
+ * height, x-height, etc.),
*
- * - A specific grid-fitting algorithm that will distort the
- * scaled glyph outline according to the results of the glyph
- * analyzer.
+ * - a specific glyph analyzer that computes segments and edges for each
+ * glyph covered by the script,
*
- * Note that a given analyzer and/or grid-fitting algorithm can be
- * used by more than one script.
+ * - a specific grid-fitting algorithm that distorts the scaled glyph
+ * outline according to the results of the glyph analyzer.
*/
- typedef enum AF_Script_
+#define __AFWRTSYS_H__ /* don't load header files */
+#undef WRITING_SYSTEM
+#define WRITING_SYSTEM( ws, WS ) \
+ AF_WRITING_SYSTEM_ ## WS,
+
+ /* The list of known writing systems. */
+ typedef enum AF_WritingSystem_
{
- AF_SCRIPT_NONE = 0,
- AF_SCRIPT_LATIN = 1,
- AF_SCRIPT_CJK = 2,
- AF_SCRIPT_INDIC = 3,
-#ifdef FT_OPTION_AUTOFIT2
- AF_SCRIPT_LATIN2,
-#endif
- /* add new scripts here. Don't forget to update the list in */
- /* `afglobal.c'. */
+#include "afwrtsys.h"
- AF_SCRIPT_MAX /* do not remove */
+ AF_WRITING_SYSTEM_MAX /* do not remove */
- } AF_Script;
+ } AF_WritingSystem;
+#undef __AFWRTSYS_H__
- typedef struct AF_ScriptClassRec_ const* AF_ScriptClass;
- typedef struct AF_ScriptMetricsRec_
+ typedef struct AF_WritingSystemClassRec_
{
- AF_ScriptClass clazz;
- AF_ScalerRec scaler;
- FT_Bool digits_have_same_width;
+ AF_WritingSystem writing_system;
- } AF_ScriptMetricsRec, *AF_ScriptMetrics;
+ FT_Offset style_metrics_size;
+ AF_WritingSystem_InitMetricsFunc style_metrics_init;
+ AF_WritingSystem_ScaleMetricsFunc style_metrics_scale;
+ AF_WritingSystem_DoneMetricsFunc style_metrics_done;
+ AF_WritingSystem_InitHintsFunc style_hints_init;
+ AF_WritingSystem_ApplyHintsFunc style_hints_apply;
- /* This function parses an FT_Face to compute global metrics for
- * a specific script.
+ } AF_WritingSystemClassRec;
+
+ typedef const AF_WritingSystemClassRec* AF_WritingSystemClass;
+
+
+ /*************************************************************************/
+ /*************************************************************************/
+ /***** *****/
+ /***** S C R I P T S *****/
+ /***** *****/
+ /*************************************************************************/
+ /*************************************************************************/
+
+ /*
+ * Each script is associated with a set of Unicode ranges that gets used
+ * to test whether the font face supports the script.
+ *
+ * We use four-letter script tags from the OpenType specification,
+ * extended by `NONE', which indicates `no script'.
*/
- typedef FT_Error
- (*AF_Script_InitMetricsFunc)( AF_ScriptMetrics metrics,
- FT_Face face );
- typedef void
- (*AF_Script_ScaleMetricsFunc)( AF_ScriptMetrics metrics,
- AF_Scaler scaler );
+#undef SCRIPT
+#define SCRIPT( s, S, d, h, sc1, sc2, sc3 ) \
+ AF_SCRIPT_ ## S,
- typedef void
- (*AF_Script_DoneMetricsFunc)( AF_ScriptMetrics metrics );
+ /* The list of known scripts. */
+ typedef enum AF_Script_
+ {
+#include "afscript.h"
- typedef FT_Error
- (*AF_Script_InitHintsFunc)( AF_GlyphHints hints,
- AF_ScriptMetrics metrics );
+ AF_SCRIPT_MAX /* do not remove */
- typedef void
- (*AF_Script_ApplyHintsFunc)( AF_GlyphHints hints,
- FT_Outline* outline,
- AF_ScriptMetrics metrics );
+ } AF_Script;
typedef struct AF_Script_UniRangeRec_
@@ -324,73 +326,303 @@ extern void* _af_debug_hints;
#define AF_UNIRANGE_REC( a, b ) { (FT_UInt32)(a), (FT_UInt32)(b) }
- typedef const AF_Script_UniRangeRec *AF_Script_UniRange;
+ typedef const AF_Script_UniRangeRec* AF_Script_UniRange;
typedef struct AF_ScriptClassRec_
{
- AF_Script script;
- AF_Script_UniRange script_uni_ranges; /* last must be { 0, 0 } */
+ AF_Script script;
- FT_Offset script_metrics_size;
- AF_Script_InitMetricsFunc script_metrics_init;
- AF_Script_ScaleMetricsFunc script_metrics_scale;
- AF_Script_DoneMetricsFunc script_metrics_done;
+ AF_Script_UniRange script_uni_ranges; /* last must be { 0, 0 } */
- AF_Script_InitHintsFunc script_hints_init;
- AF_Script_ApplyHintsFunc script_hints_apply;
+ FT_UInt32 standard_char1; /* for default width and height */
+ FT_UInt32 standard_char2; /* ditto */
+ FT_UInt32 standard_char3; /* ditto */
} AF_ScriptClassRec;
-/* Declare and define vtables for classes */
+ typedef const AF_ScriptClassRec* AF_ScriptClass;
+
+
+ /*************************************************************************/
+ /*************************************************************************/
+ /***** *****/
+ /***** C O V E R A G E S *****/
+ /***** *****/
+ /*************************************************************************/
+ /*************************************************************************/
+
+ /*
+ * Usually, a font contains more glyphs than can be addressed by its
+ * character map.
+ *
+ * In the PostScript font world, encoding vectors specific to a given
+ * task are used to select such glyphs, and these glyphs can be often
+ * recognized by having a suffix in its glyph names. For example, a
+ * superscript glyph `A' might be called `A.sup'. Unfortunately, this
+ * naming scheme is not standardized and thus unusable for us.
+ *
+ * In the OpenType world, a better solution was invented, namely
+ * `features', which cleanly separate a character's input encoding from
+ * the corresponding glyph's appearance, and which don't use glyph names
+ * at all. For our purposes, and slightly generalized, an OpenType
+ * feature is a name of a mapping that maps character codes to
+ * non-standard glyph indices (features get used for other things also).
+ * For example, the `sups' feature provides superscript glyphs, thus
+ * mapping character codes like `A' or `B' to superscript glyph
+ * representation forms. How this mapping happens is completely
+ * uninteresting to us.
+ *
+ * For the auto-hinter, a `coverage' represents all glyphs of an OpenType
+ * feature collected in a set (as listed below) that can be hinted
+ * together. To continue the above example, superscript glyphs must not
+ * be hinted together with normal glyphs because the blue zones
+ * completely differ.
+ *
+ * Note that FreeType itself doesn't compute coverages; it only provides
+ * the glyphs addressable by the default Unicode character map. Instead,
+ * we use the HarfBuzz library (if available), which has many functions
+ * exactly for this purpose.
+ *
+ * AF_COVERAGE_DEFAULT is special: It should cover everything that isn't
+ * listed separately (including the glyphs addressable by the character
+ * map). In case HarfBuzz isn't available, it exactly covers the glyphs
+ * addressable by the character map.
+ *
+ */
+
+#undef COVERAGE
+#define COVERAGE( name, NAME, description, \
+ tag1, tag2, tag3, tag4 ) \
+ AF_COVERAGE_ ## NAME,
+
+
+ typedef enum AF_Coverage_
+ {
+#include "afcover.h"
+
+ AF_COVERAGE_DEFAULT
+
+ } AF_Coverage;
+
+
+ /*************************************************************************/
+ /*************************************************************************/
+ /***** *****/
+ /***** S T Y L E S *****/
+ /***** *****/
+ /*************************************************************************/
+ /*************************************************************************/
+
+ /*
+ * The topmost structure for modelling the auto-hinter glyph input data
+ * is a `style class', grouping everything together.
+ */
+
+#undef STYLE
+#define STYLE( s, S, d, ws, sc, ss, c ) \
+ AF_STYLE_ ## S,
+
+ /* The list of known styles. */
+ typedef enum AF_Style_
+ {
+
+#include "afstyles.h"
+
+ AF_STYLE_MAX /* do not remove */
+
+ } AF_Style;
+
+
+ typedef struct AF_StyleClassRec_
+ {
+ AF_Style style;
+
+ AF_WritingSystem writing_system;
+ AF_Script script;
+ AF_Blue_Stringset blue_stringset;
+ AF_Coverage coverage;
+
+ } AF_StyleClassRec;
+
+ typedef const AF_StyleClassRec* AF_StyleClass;
+
+
+ /*************************************************************************/
+ /*************************************************************************/
+ /***** *****/
+ /***** S T Y L E M E T R I C S *****/
+ /***** *****/
+ /*************************************************************************/
+ /*************************************************************************/
+
+ typedef struct AF_FaceGlobalsRec_* AF_FaceGlobals;
+
+ /* This is the main structure that combines everything. Autofit modules */
+ /* specific to writing systems derive their structures from it, for */
+ /* example `AF_LatinMetrics'. */
+
+ typedef struct AF_StyleMetricsRec_
+ {
+ AF_StyleClass style_class;
+ AF_ScalerRec scaler;
+ FT_Bool digits_have_same_width;
+
+ AF_FaceGlobals globals; /* to access properties */
+
+ } AF_StyleMetricsRec;
+
+
+ /* Declare and define vtables for classes */
#ifndef FT_CONFIG_OPTION_PIC
-#define AF_DECLARE_SCRIPT_CLASS(script_class) \
- FT_CALLBACK_TABLE const AF_ScriptClassRec \
+#define AF_DECLARE_WRITING_SYSTEM_CLASS( writing_system_class ) \
+ FT_CALLBACK_TABLE const AF_WritingSystemClassRec \
+ writing_system_class;
+
+#define AF_DEFINE_WRITING_SYSTEM_CLASS( \
+ writing_system_class, \
+ system, \
+ m_size, \
+ m_init, \
+ m_scale, \
+ m_done, \
+ h_init, \
+ h_apply ) \
+ FT_CALLBACK_TABLE_DEF \
+ const AF_WritingSystemClassRec writing_system_class = \
+ { \
+ system, \
+ \
+ m_size, \
+ \
+ m_init, \
+ m_scale, \
+ m_done, \
+ \
+ h_init, \
+ h_apply \
+ };
+
+
+#define AF_DECLARE_SCRIPT_CLASS( script_class ) \
+ FT_CALLBACK_TABLE const AF_ScriptClassRec \
script_class;
-#define AF_DEFINE_SCRIPT_CLASS(script_class, script_, ranges, m_size, \
- m_init, m_scale, m_done, h_init, h_apply) \
- FT_CALLBACK_TABLE_DEF const AF_ScriptClassRec \
- script_class = \
- { \
- script_, \
- ranges, \
- \
- m_size, \
- \
- m_init, \
- m_scale, \
- m_done, \
- \
- h_init, \
- h_apply \
+#define AF_DEFINE_SCRIPT_CLASS( \
+ script_class, \
+ script, \
+ ranges, \
+ std_char1, \
+ std_char2, \
+ std_char3 ) \
+ FT_CALLBACK_TABLE_DEF \
+ const AF_ScriptClassRec script_class = \
+ { \
+ script, \
+ ranges, \
+ std_char1, \
+ std_char2, \
+ std_char3 \
};
-#else
-
-#define AF_DECLARE_SCRIPT_CLASS(script_class) \
- FT_LOCAL(void) \
- FT_Init_Class_##script_class(AF_ScriptClassRec* ac);
-
-#define AF_DEFINE_SCRIPT_CLASS(script_class, script_, ranges, m_size, \
- m_init, m_scale, m_done, h_init, h_apply) \
- FT_LOCAL_DEF(void) \
- FT_Init_Class_##script_class(AF_ScriptClassRec* ac) \
- { \
- ac->script = script_; \
- ac->script_uni_ranges = ranges; \
- \
- ac->script_metrics_size = m_size; \
- \
- ac->script_metrics_init = m_init; \
- ac->script_metrics_scale = m_scale; \
- ac->script_metrics_done = m_done; \
- \
- ac->script_hints_init = h_init; \
- ac->script_hints_apply = h_apply; \
+
+#define AF_DECLARE_STYLE_CLASS( style_class ) \
+ FT_CALLBACK_TABLE const AF_StyleClassRec \
+ style_class;
+
+#define AF_DEFINE_STYLE_CLASS( \
+ style_class, \
+ style, \
+ writing_system, \
+ script, \
+ blue_stringset, \
+ coverage ) \
+ FT_CALLBACK_TABLE_DEF \
+ const AF_StyleClassRec style_class = \
+ { \
+ style, \
+ writing_system, \
+ script, \
+ blue_stringset, \
+ coverage \
+ };
+
+#else /* FT_CONFIG_OPTION_PIC */
+
+#define AF_DECLARE_WRITING_SYSTEM_CLASS( writing_system_class ) \
+ FT_LOCAL( void ) \
+ FT_Init_Class_ ## writing_system_class( AF_WritingSystemClassRec* ac );
+
+#define AF_DEFINE_WRITING_SYSTEM_CLASS( \
+ writing_system_class, \
+ system, \
+ m_size, \
+ m_init, \
+ m_scale, \
+ m_done, \
+ h_init, \
+ h_apply ) \
+ FT_LOCAL_DEF( void ) \
+ FT_Init_Class_ ## writing_system_class( AF_WritingSystemClassRec* ac ) \
+ { \
+ ac->writing_system = system; \
+ \
+ ac->style_metrics_size = m_size; \
+ \
+ ac->style_metrics_init = m_init; \
+ ac->style_metrics_scale = m_scale; \
+ ac->style_metrics_done = m_done; \
+ \
+ ac->style_hints_init = h_init; \
+ ac->style_hints_apply = h_apply; \
+ }
+
+
+#define AF_DECLARE_SCRIPT_CLASS( script_class ) \
+ FT_LOCAL( void ) \
+ FT_Init_Class_ ## script_class( AF_ScriptClassRec* ac );
+
+#define AF_DEFINE_SCRIPT_CLASS( \
+ script_class, \
+ script_, \
+ ranges, \
+ std_char1, \
+ std_char2, \
+ std_char3 ) \
+ FT_LOCAL_DEF( void ) \
+ FT_Init_Class_ ## script_class( AF_ScriptClassRec* ac ) \
+ { \
+ ac->script = script_; \
+ ac->script_uni_ranges = ranges; \
+ ac->standard_char1 = std_char1; \
+ ac->standard_char2 = std_char2; \
+ ac->standard_char3 = std_char3; \
}
-#endif
+
+
+#define AF_DECLARE_STYLE_CLASS( style_class ) \
+ FT_LOCAL( void ) \
+ FT_Init_Class_ ## style_class( AF_StyleClassRec* ac );
+
+#define AF_DEFINE_STYLE_CLASS( \
+ style_class, \
+ style_, \
+ writing_system_, \
+ script_, \
+ blue_stringset_, \
+ coverage_ ) \
+ FT_LOCAL_DEF( void ) \
+ FT_Init_Class_ ## style_class( AF_StyleClassRec* ac ) \
+ { \
+ ac->style = style_; \
+ ac->writing_system = writing_system_; \
+ ac->script = script_; \
+ ac->blue_stringset = blue_stringset_; \
+ ac->coverage = coverage_; \
+ }
+
+#endif /* FT_CONFIG_OPTION_PIC */
/* */
diff --git a/src/3rdparty/freetype/src/autofit/afwarp.c b/src/3rdparty/freetype/src/autofit/afwarp.c
index f5bb9b18ad..34a97ffc57 100644
--- a/src/3rdparty/freetype/src/autofit/afwarp.c
+++ b/src/3rdparty/freetype/src/autofit/afwarp.c
@@ -4,7 +4,7 @@
/* */
/* Auto-fitter warping algorithm (body). */
/* */
-/* Copyright 2006, 2007 by */
+/* Copyright 2006, 2007, 2011 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -16,10 +16,30 @@
/***************************************************************************/
+ /*
+ * The idea of the warping code is to slightly scale and shift a glyph
+ * within a single dimension so that as much of its segments are aligned
+ * (more or less) on the grid. To find out the optimal scaling and
+ * shifting value, various parameter combinations are tried and scored.
+ */
+
#include "afwarp.h"
-#ifdef AF_USE_WARPER
+#ifdef AF_CONFIG_OPTION_USE_WARPER
+
+ /*************************************************************************/
+ /* */
+ /* The macro FT_COMPONENT is used in trace mode. It is an implicit */
+ /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */
+ /* messages during execution. */
+ /* */
+#undef FT_COMPONENT
+#define FT_COMPONENT trace_afwarp
+
+ /* The weights cover the range 0/64 - 63/64 of a pixel. Obviously, */
+ /* values around a half pixel (which means exactly between two grid */
+ /* lines) gets the worst weight. */
#if 1
static const AF_WarpScore
af_warper_weights[64] =
@@ -43,6 +63,11 @@
#endif
+ /* Score segments for a given `scale' and `delta' in the range */
+ /* `xx1' to `xx2', and store the best result in `warper'. If */
+ /* the new best score is equal to the old one, prefer the */
+ /* value with a smaller distortion (around `base_distort'). */
+
static void
af_warper_compute_line_best( AF_Warper warper,
FT_Fixed scale,
@@ -82,12 +107,12 @@
if ( idx_min < 0 || idx_min > idx_max || idx_max > 64 )
{
- AF_LOG(( "invalid indices:\n"
- " min=%d max=%d, xx1=%ld xx2=%ld,\n"
- " x1min=%ld x1max=%ld, x2min=%ld x2max=%ld\n",
- idx_min, idx_max, xx1, xx2,
- warper->x1min, warper->x1max,
- warper->x2min, warper->x2max ));
+ FT_TRACE5(( "invalid indices:\n"
+ " min=%d max=%d, xx1=%ld xx2=%ld,\n"
+ " x1min=%ld x1max=%ld, x2min=%ld x2max=%ld\n",
+ idx_min, idx_max, xx1, xx2,
+ warper->x1min, warper->x1max,
+ warper->x2min, warper->x2max ));
return;
}
}
@@ -100,6 +125,7 @@
FT_Int idx;
+ /* score the length of the segments for the given range */
for ( idx = idx_min; idx <= idx_max; idx++, y++ )
scores[idx] += af_warper_weights[y & 63] * len;
}
@@ -115,9 +141,9 @@
AF_WarpScore distort = base_distort + ( idx - idx0 );
- if ( score > warper->best_score ||
+ if ( score > warper->best_score ||
( score == warper->best_score &&
- distort < warper->best_distort ) )
+ distort < warper->best_distort ) )
{
warper->best_score = score;
warper->best_distort = distort;
@@ -129,6 +155,9 @@
}
+ /* Compute optimal scaling and delta values for a given glyph and */
+ /* dimension. */
+
FT_LOCAL_DEF( void )
af_warper_compute( AF_Warper warper,
AF_GlyphHints hints,
@@ -215,6 +244,7 @@
warper->t1 = AF_WARPER_FLOOR( warper->x1 );
warper->t2 = AF_WARPER_CEIL( warper->x2 );
+ /* examine a half pixel wide range around the maximum coordinates */
warper->x1min = warper->x1 & ~31;
warper->x1max = warper->x1min + 32;
warper->x2min = warper->x2 & ~31;
@@ -234,10 +264,12 @@
warper->x2min = warper->x2;
}
+ /* examine (at most) a pixel wide range around the natural width */
warper->wmin = warper->x2min - warper->x1max;
warper->wmax = warper->x2max - warper->x1min;
#if 1
+ /* some heuristics to reduce the number of widths to be examined */
{
int margin = 16;
@@ -273,6 +305,8 @@
FT_Pos xx1, xx2;
+ /* compute min and max positions for given width, */
+ /* assuring that they stay within the coordinate ranges */
xx1 = warper->x1;
xx2 = warper->x2;
if ( w >= warper->w0 )
@@ -304,6 +338,7 @@
else
base_distort += xx2 - warper->x2;
+ /* give base distortion a greater weight while scoring */
base_distort *= 10;
new_scale = org_scale + FT_DivFix( w - warper->w0, X2 - X1 );
@@ -317,7 +352,7 @@
{
FT_Fixed best_scale = warper->best_scale;
FT_Pos best_delta = warper->best_delta;
-
+
hints->xmin_delta = FT_MulFix( X1, best_scale - org_scale )
+ best_delta;
@@ -329,10 +364,11 @@
}
}
-#else /* !AF_USE_WARPER */
+#else /* !AF_CONFIG_OPTION_USE_WARPER */
-char af_warper_dummy = 0; /* make compiler happy */
+ /* ANSI C doesn't like empty source files */
+ typedef int _af_warp_dummy;
-#endif /* !AF_USE_WARPER */
+#endif /* !AF_CONFIG_OPTION_USE_WARPER */
/* END */
diff --git a/src/3rdparty/freetype/src/autofit/afwrtsys.h b/src/3rdparty/freetype/src/autofit/afwrtsys.h
new file mode 100644
index 0000000000..8aa2ed9e6b
--- /dev/null
+++ b/src/3rdparty/freetype/src/autofit/afwrtsys.h
@@ -0,0 +1,52 @@
+/***************************************************************************/
+/* */
+/* afwrtsys.h */
+/* */
+/* Auto-fitter writing systems (specification only). */
+/* */
+/* Copyright 2013 by */
+/* David Turner, Robert Wilhelm, and Werner Lemberg. */
+/* */
+/* This file is part of the FreeType project, and may only be used, */
+/* modified, and distributed under the terms of the FreeType project */
+/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
+/* this file you indicate that you have read the license and */
+/* understand and accept it fully. */
+/* */
+/***************************************************************************/
+
+
+#ifndef __AFWRTSYS_H__
+#define __AFWRTSYS_H__
+
+ /* Since preprocessor directives can't create other preprocessor */
+ /* directives, we have to include the header files manually. */
+
+#include "afdummy.h"
+#include "aflatin.h"
+#include "afcjk.h"
+#include "afindic.h"
+#ifdef FT_OPTION_AUTOFIT2
+#include "aflatin2.h"
+#endif
+
+#endif /* __AFWRTSYS_H__ */
+
+
+ /* The following part can be included multiple times. */
+ /* Define `WRITING_SYSTEM' as needed. */
+
+
+ /* Add new writing systems here. The arguments are the writing system */
+ /* name in lowercase and uppercase, respectively. */
+
+ WRITING_SYSTEM( dummy, DUMMY )
+ WRITING_SYSTEM( latin, LATIN )
+ WRITING_SYSTEM( cjk, CJK )
+ WRITING_SYSTEM( indic, INDIC )
+#ifdef FT_OPTION_AUTOFIT2
+ WRITING_SYSTEM( latin2, LATIN2 )
+#endif
+
+
+/* END */
diff --git a/src/3rdparty/freetype/src/autofit/autofit.c b/src/3rdparty/freetype/src/autofit/autofit.c
index 83b613e79b..e2b9934e4b 100644
--- a/src/3rdparty/freetype/src/autofit/autofit.c
+++ b/src/3rdparty/freetype/src/autofit/autofit.c
@@ -4,7 +4,7 @@
/* */
/* Auto-fitter module (body). */
/* */
-/* Copyright 2003, 2004, 2005, 2006, 2007 by */
+/* Copyright 2003-2007, 2011, 2013 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -20,9 +20,12 @@
#include <ft2build.h>
#include "afpic.c"
#include "afangles.c"
+#include "afblue.c"
#include "afglobal.c"
#include "afhints.c"
+#include "afranges.c"
+
#include "afdummy.c"
#include "aflatin.c"
#ifdef FT_OPTION_AUTOFIT2
@@ -31,10 +34,12 @@
#include "afcjk.c"
#include "afindic.c"
+#include "hbshim.c"
+
#include "afloader.c"
#include "afmodule.c"
-#ifdef AF_USE_WARPER
+#ifdef AF_CONFIG_OPTION_USE_WARPER
#include "afwarp.c"
#endif
diff --git a/src/3rdparty/freetype/src/autofit/hbshim.c b/src/3rdparty/freetype/src/autofit/hbshim.c
new file mode 100644
index 0000000000..a705cef000
--- /dev/null
+++ b/src/3rdparty/freetype/src/autofit/hbshim.c
@@ -0,0 +1,545 @@
+/***************************************************************************/
+/* */
+/* hbshim.c */
+/* */
+/* HarfBuzz interface for accessing OpenType features (body). */
+/* */
+/* Copyright 2013, 2014 by */
+/* David Turner, Robert Wilhelm, and Werner Lemberg. */
+/* */
+/* This file is part of the FreeType project, and may only be used, */
+/* modified, and distributed under the terms of the FreeType project */
+/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
+/* this file you indicate that you have read the license and */
+/* understand and accept it fully. */
+/* */
+/***************************************************************************/
+
+
+#include <ft2build.h>
+#include FT_FREETYPE_H
+#include "afglobal.h"
+#include "aftypes.h"
+#include "hbshim.h"
+
+#ifdef FT_CONFIG_OPTION_USE_HARFBUZZ
+
+
+ /*************************************************************************/
+ /* */
+ /* The macro FT_COMPONENT is used in trace mode. It is an implicit */
+ /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */
+ /* messages during execution. */
+ /* */
+#undef FT_COMPONENT
+#define FT_COMPONENT trace_afharfbuzz
+
+
+ /*
+ * We use `sets' (in the HarfBuzz sense, which comes quite near to the
+ * usual mathematical meaning) to manage both lookups and glyph indices.
+ *
+ * 1. For each coverage, collect lookup IDs in a set. Note that an
+ * auto-hinter `coverage' is represented by one `feature', and a
+ * feature consists of an arbitrary number of (font specific) `lookup's
+ * that actually do the mapping job. Please check the OpenType
+ * specification for more details on features and lookups.
+ *
+ * 2. Create glyph ID sets from the corresponding lookup sets.
+ *
+ * 3. The glyph set corresponding to AF_COVERAGE_DEFAULT is computed
+ * with all lookups specific to the OpenType script activated. It
+ * relies on the order of AF_DEFINE_STYLE_CLASS entries so that
+ * special coverages (like `oldstyle figures') don't get overwritten.
+ *
+ */
+
+
+ /* load coverage tags */
+#undef COVERAGE
+#define COVERAGE( name, NAME, description, \
+ tag1, tag2, tag3, tag4 ) \
+ static const hb_tag_t name ## _coverage[] = \
+ { \
+ HB_TAG( tag1, tag2, tag3, tag4 ), \
+ HB_TAG_NONE \
+ };
+
+
+#include "afcover.h"
+
+
+ /* define mapping between coverage tags and AF_Coverage */
+#undef COVERAGE
+#define COVERAGE( name, NAME, description, \
+ tag1, tag2, tag3, tag4 ) \
+ name ## _coverage,
+
+
+ static const hb_tag_t* coverages[] =
+ {
+#include "afcover.h"
+
+ NULL /* AF_COVERAGE_DEFAULT */
+ };
+
+
+ /* load HarfBuzz script tags */
+#undef SCRIPT
+#define SCRIPT( s, S, d, h, sc1, sc2, sc3 ) h,
+
+
+ static const hb_script_t scripts[] =
+ {
+#include "afscript.h"
+ };
+
+
+ FT_Error
+ af_get_coverage( AF_FaceGlobals globals,
+ AF_StyleClass style_class,
+ FT_Byte* gstyles )
+ {
+ hb_face_t* face;
+
+ hb_set_t* gsub_lookups; /* GSUB lookups for a given script */
+ hb_set_t* gsub_glyphs; /* glyphs covered by GSUB lookups */
+ hb_set_t* gpos_lookups; /* GPOS lookups for a given script */
+ hb_set_t* gpos_glyphs; /* glyphs covered by GPOS lookups */
+
+ hb_script_t script;
+ const hb_tag_t* coverage_tags;
+ hb_tag_t script_tags[] = { HB_TAG_NONE,
+ HB_TAG_NONE,
+ HB_TAG_NONE,
+ HB_TAG_NONE };
+
+ hb_codepoint_t idx;
+#ifdef FT_DEBUG_LEVEL_TRACE
+ int count;
+#endif
+
+
+ if ( !globals || !style_class || !gstyles )
+ return FT_THROW( Invalid_Argument );
+
+ face = hb_font_get_face( globals->hb_font );
+
+ gsub_lookups = hb_set_create();
+ gsub_glyphs = hb_set_create();
+ gpos_lookups = hb_set_create();
+ gpos_glyphs = hb_set_create();
+
+ coverage_tags = coverages[style_class->coverage];
+ script = scripts[style_class->script];
+
+ /* Convert a HarfBuzz script tag into the corresponding OpenType */
+ /* tag or tags -- some Indic scripts like Devanagari have an old */
+ /* and a new set of features. */
+ hb_ot_tags_from_script( script,
+ &script_tags[0],
+ &script_tags[1] );
+
+ /* `hb_ot_tags_from_script' usually returns HB_OT_TAG_DEFAULT_SCRIPT */
+ /* as the second tag. We change that to HB_TAG_NONE except for the */
+ /* default script. */
+ if ( style_class->script == globals->module->default_script &&
+ style_class->coverage == AF_COVERAGE_DEFAULT )
+ {
+ if ( script_tags[0] == HB_TAG_NONE )
+ script_tags[0] = HB_OT_TAG_DEFAULT_SCRIPT;
+ else
+ {
+ if ( script_tags[1] == HB_TAG_NONE )
+ script_tags[1] = HB_OT_TAG_DEFAULT_SCRIPT;
+ else if ( script_tags[1] != HB_OT_TAG_DEFAULT_SCRIPT )
+ script_tags[2] = HB_OT_TAG_DEFAULT_SCRIPT;
+ }
+ }
+ else
+ {
+ if ( script_tags[1] == HB_OT_TAG_DEFAULT_SCRIPT )
+ script_tags[1] = HB_TAG_NONE;
+ }
+
+ hb_ot_layout_collect_lookups( face,
+ HB_OT_TAG_GSUB,
+ script_tags,
+ NULL,
+ coverage_tags,
+ gsub_lookups );
+
+ if ( hb_set_is_empty( gsub_lookups ) )
+ goto Exit; /* nothing to do */
+
+ hb_ot_layout_collect_lookups( face,
+ HB_OT_TAG_GPOS,
+ script_tags,
+ NULL,
+ coverage_tags,
+ gpos_lookups );
+
+ FT_TRACE4(( "GSUB lookups (style `%s'):\n"
+ " ",
+ af_style_names[style_class->style] ));
+
+#ifdef FT_DEBUG_LEVEL_TRACE
+ count = 0;
+#endif
+
+ for ( idx = -1; hb_set_next( gsub_lookups, &idx ); )
+ {
+#ifdef FT_DEBUG_LEVEL_TRACE
+ FT_TRACE4(( " %d", idx ));
+ count++;
+#endif
+
+ /* get output coverage of GSUB feature */
+ hb_ot_layout_lookup_collect_glyphs( face,
+ HB_OT_TAG_GSUB,
+ idx,
+ NULL,
+ NULL,
+ NULL,
+ gsub_glyphs );
+ }
+
+#ifdef FT_DEBUG_LEVEL_TRACE
+ if ( !count )
+ FT_TRACE4(( " (none)" ));
+ FT_TRACE4(( "\n\n" ));
+#endif
+
+ FT_TRACE4(( "GPOS lookups (style `%s'):\n"
+ " ",
+ af_style_names[style_class->style] ));
+
+#ifdef FT_DEBUG_LEVEL_TRACE
+ count = 0;
+#endif
+
+ for ( idx = -1; hb_set_next( gpos_lookups, &idx ); )
+ {
+#ifdef FT_DEBUG_LEVEL_TRACE
+ FT_TRACE4(( " %d", idx ));
+ count++;
+#endif
+
+ /* get input coverage of GPOS feature */
+ hb_ot_layout_lookup_collect_glyphs( face,
+ HB_OT_TAG_GPOS,
+ idx,
+ NULL,
+ gpos_glyphs,
+ NULL,
+ NULL );
+ }
+
+#ifdef FT_DEBUG_LEVEL_TRACE
+ if ( !count )
+ FT_TRACE4(( " (none)" ));
+ FT_TRACE4(( "\n\n" ));
+#endif
+
+ /*
+ * We now check whether we can construct blue zones, using glyphs
+ * covered by the feature only. In case there is not a single zone
+ * (this is, not a single character is covered), we skip this coverage.
+ *
+ */
+ if ( style_class->coverage != AF_COVERAGE_DEFAULT )
+ {
+ AF_Blue_Stringset bss = style_class->blue_stringset;
+ const AF_Blue_StringRec* bs = &af_blue_stringsets[bss];
+
+ FT_Bool found = 0;
+
+
+ for ( ; bs->string != AF_BLUE_STRING_MAX; bs++ )
+ {
+ const char* p = &af_blue_strings[bs->string];
+
+
+ while ( *p )
+ {
+ hb_codepoint_t ch;
+
+
+ GET_UTF8_CHAR( ch, p );
+
+ for ( idx = -1; hb_set_next( gsub_lookups, &idx ); )
+ {
+ hb_codepoint_t gidx = FT_Get_Char_Index( globals->face, ch );
+
+
+ if ( hb_ot_layout_lookup_would_substitute( face, idx,
+ &gidx, 1, 1 ) )
+ {
+ found = 1;
+ break;
+ }
+ }
+ }
+ }
+
+ if ( !found )
+ {
+ FT_TRACE4(( " no blue characters found; style skipped\n" ));
+ goto Exit;
+ }
+ }
+
+ /*
+ * Various OpenType features might use the same glyphs at different
+ * vertical positions; for example, superscript and subscript glyphs
+ * could be the same. However, the auto-hinter is completely
+ * agnostic of OpenType features after the feature analysis has been
+ * completed: The engine then simply receives a glyph index and returns a
+ * hinted and usually rendered glyph.
+ *
+ * Consider the superscript feature of font `pala.ttf': Some of the
+ * glyphs are `real', this is, they have a zero vertical offset, but
+ * most of them are small caps glyphs shifted up to the superscript
+ * position (this is, the `sups' feature is present in both the GSUB and
+ * GPOS tables). The code for blue zones computation actually uses a
+ * feature's y offset so that the `real' glyphs get correct hints. But
+ * later on it is impossible to decide whether a glyph index belongs to,
+ * say, the small caps or superscript feature.
+ *
+ * For this reason, we don't assign a style to a glyph if the current
+ * feature covers the glyph in both the GSUB and the GPOS tables. This
+ * is quite a broad condition, assuming that
+ *
+ * (a) glyphs that get used in multiple features are present in a
+ * feature without vertical shift,
+ *
+ * and
+ *
+ * (b) a feature's GPOS data really moves the glyph vertically.
+ *
+ * Not fulfilling condition (a) makes a font larger; it would also
+ * reduce the number of glyphs that could be addressed directly without
+ * using OpenType features, so this assumption is rather strong.
+ *
+ * Condition (b) is much weaker, and there might be glyphs which get
+ * missed. However, the OpenType features we are going to handle are
+ * primarily located in GSUB, and HarfBuzz doesn't provide an API to
+ * directly get the necessary information from the GPOS table. A
+ * possible solution might be to directly parse the GPOS table to find
+ * out whether a glyph gets shifted vertically, but this is something I
+ * would like to avoid if not really necessary.
+ *
+ * Note that we don't follow this logic for the default coverage.
+ * Complex scripts like Devanagari have mandatory GPOS features to
+ * position many glyph elements, using mark-to-base or mark-to-ligature
+ * tables; the number of glyphs missed due to condition (b) would be far
+ * too large.
+ *
+ */
+ if ( style_class->coverage != AF_COVERAGE_DEFAULT )
+ hb_set_subtract( gsub_glyphs, gpos_glyphs );
+
+#ifdef FT_DEBUG_LEVEL_TRACE
+ FT_TRACE4(( " glyphs without GPOS data (`*' means already assigned)" ));
+ count = 0;
+#endif
+
+ for ( idx = -1; hb_set_next( gsub_glyphs, &idx ); )
+ {
+#ifdef FT_DEBUG_LEVEL_TRACE
+ if ( !( count % 10 ) )
+ FT_TRACE4(( "\n"
+ " " ));
+
+ FT_TRACE4(( " %d", idx ));
+ count++;
+#endif
+
+ /* glyph indices returned by `hb_ot_layout_lookup_collect_glyphs' */
+ /* can be arbitrary: some fonts use fake indices for processing */
+ /* internal to GSUB or GPOS, which is fully valid */
+ if ( idx >= (hb_codepoint_t)globals->glyph_count )
+ continue;
+
+ if ( gstyles[idx] == AF_STYLE_UNASSIGNED )
+ gstyles[idx] = (FT_Byte)style_class->style;
+#ifdef FT_DEBUG_LEVEL_TRACE
+ else
+ FT_TRACE4(( "*" ));
+#endif
+ }
+
+#ifdef FT_DEBUG_LEVEL_TRACE
+ if ( !count )
+ FT_TRACE4(( "\n"
+ " (none)" ));
+ FT_TRACE4(( "\n\n" ));
+#endif
+
+ Exit:
+ hb_set_destroy( gsub_lookups );
+ hb_set_destroy( gsub_glyphs );
+ hb_set_destroy( gpos_lookups );
+ hb_set_destroy( gpos_glyphs );
+
+ return FT_Err_Ok;
+ }
+
+
+ /* construct HarfBuzz features */
+#undef COVERAGE
+#define COVERAGE( name, NAME, description, \
+ tag1, tag2, tag3, tag4 ) \
+ static const hb_feature_t name ## _feature[] = \
+ { \
+ { \
+ HB_TAG( tag1, tag2, tag3, tag4 ), \
+ 1, 0, (unsigned int)-1 \
+ } \
+ };
+
+
+#include "afcover.h"
+
+
+ /* define mapping between HarfBuzz features and AF_Coverage */
+#undef COVERAGE
+#define COVERAGE( name, NAME, description, \
+ tag1, tag2, tag3, tag4 ) \
+ name ## _feature,
+
+
+ static const hb_feature_t* features[] =
+ {
+#include "afcover.h"
+
+ NULL /* AF_COVERAGE_DEFAULT */
+ };
+
+
+ FT_Error
+ af_get_char_index( AF_StyleMetrics metrics,
+ FT_ULong charcode,
+ FT_ULong *codepoint,
+ FT_Long *y_offset )
+ {
+ AF_StyleClass style_class;
+
+ const hb_feature_t* feature;
+
+ FT_ULong in_idx, out_idx;
+
+
+ if ( !metrics )
+ return FT_THROW( Invalid_Argument );
+
+ in_idx = FT_Get_Char_Index( metrics->globals->face, charcode );
+
+ style_class = metrics->style_class;
+
+ feature = features[style_class->coverage];
+
+ if ( feature )
+ {
+ FT_UInt upem = metrics->globals->face->units_per_EM;
+
+ hb_font_t* font = metrics->globals->hb_font;
+ hb_buffer_t* buf = hb_buffer_create();
+
+ uint32_t c = (uint32_t)charcode;
+
+ hb_glyph_info_t* ginfo;
+ hb_glyph_position_t* gpos;
+ unsigned int gcount;
+
+
+ /* we shape at a size of units per EM; this means font units */
+ hb_font_set_scale( font, upem, upem );
+
+ /* XXX: is this sufficient for a single character of any script? */
+ hb_buffer_set_direction( buf, HB_DIRECTION_LTR );
+ hb_buffer_set_script( buf, scripts[style_class->script] );
+
+ /* we add one character to `buf' ... */
+ hb_buffer_add_utf32( buf, &c, 1, 0, 1 );
+
+ /* ... and apply one feature */
+ hb_shape( font, buf, feature, 1 );
+
+ ginfo = hb_buffer_get_glyph_infos( buf, &gcount );
+ gpos = hb_buffer_get_glyph_positions( buf, &gcount );
+
+ out_idx = ginfo[0].codepoint;
+
+ /* getting the same index indicates no substitution, */
+ /* which means that the glyph isn't available in the feature */
+ if ( in_idx == out_idx )
+ {
+ *codepoint = 0;
+ *y_offset = 0;
+ }
+ else
+ {
+ *codepoint = out_idx;
+ *y_offset = gpos[0].y_offset;
+ }
+
+ hb_buffer_destroy( buf );
+
+#ifdef FT_DEBUG_LEVEL_TRACE
+ if ( gcount > 1 )
+ FT_TRACE1(( "af_get_char_index:"
+ " input character mapped to multiple glyphs\n" ));
+#endif
+ }
+ else
+ {
+ *codepoint = in_idx;
+ *y_offset = 0;
+ }
+
+ return FT_Err_Ok;
+ }
+
+
+#else /* !FT_CONFIG_OPTION_USE_HARFBUZZ */
+
+
+ FT_Error
+ af_get_coverage( AF_FaceGlobals globals,
+ AF_StyleClass style_class,
+ FT_Byte* gstyles )
+ {
+ FT_UNUSED( globals );
+ FT_UNUSED( style_class );
+ FT_UNUSED( gstyles );
+
+ return FT_Err_Ok;
+ }
+
+
+ FT_Error
+ af_get_char_index( AF_StyleMetrics metrics,
+ FT_ULong charcode,
+ FT_ULong *codepoint,
+ FT_Long *y_offset )
+ {
+ FT_Face face;
+
+
+ if ( !metrics )
+ return FT_THROW( Invalid_Argument );
+
+ face = metrics->globals->face;
+
+ *codepoint = FT_Get_Char_Index( face, charcode );
+ *y_offset = 0;
+
+ return FT_Err_Ok;
+ }
+
+
+#endif /* !FT_CONFIG_OPTION_USE_HARFBUZZ */
+
+
+/* END */
diff --git a/src/3rdparty/freetype/src/autofit/hbshim.h b/src/3rdparty/freetype/src/autofit/hbshim.h
new file mode 100644
index 0000000000..02f1513f67
--- /dev/null
+++ b/src/3rdparty/freetype/src/autofit/hbshim.h
@@ -0,0 +1,56 @@
+/***************************************************************************/
+/* */
+/* hbshim.h */
+/* */
+/* HarfBuzz interface for accessing OpenType features (specification). */
+/* */
+/* Copyright 2013 by */
+/* David Turner, Robert Wilhelm, and Werner Lemberg. */
+/* */
+/* This file is part of the FreeType project, and may only be used, */
+/* modified, and distributed under the terms of the FreeType project */
+/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
+/* this file you indicate that you have read the license and */
+/* understand and accept it fully. */
+/* */
+/***************************************************************************/
+
+
+#ifndef __HBSHIM_H__
+#define __HBSHIM_H__
+
+
+#include <ft2build.h>
+#include FT_FREETYPE_H
+
+
+#ifdef FT_CONFIG_OPTION_USE_HARFBUZZ
+
+#include <hb.h>
+#include <hb-ot.h>
+#include <hb-ft.h>
+
+#endif
+
+
+FT_BEGIN_HEADER
+
+ FT_Error
+ af_get_coverage( AF_FaceGlobals globals,
+ AF_StyleClass style_class,
+ FT_Byte* gstyles );
+
+ FT_Error
+ af_get_char_index( AF_StyleMetrics metrics,
+ FT_ULong charcode,
+ FT_ULong *codepoint,
+ FT_Long *y_offset );
+
+ /* */
+
+FT_END_HEADER
+
+#endif /* __HBSHIM_H__ */
+
+
+/* END */
diff --git a/src/3rdparty/freetype/src/autofit/rules.mk b/src/3rdparty/freetype/src/autofit/rules.mk
index 017489d9e0..658f04ea59 100644
--- a/src/3rdparty/freetype/src/autofit/rules.mk
+++ b/src/3rdparty/freetype/src/autofit/rules.mk
@@ -3,7 +3,7 @@
#
-# Copyright 2003, 2004, 2005, 2006, 2007 by
+# Copyright 2003-2007, 2011, 2013 by
# David Turner, Robert Wilhelm, and Werner Lemberg.
#
# This file is part of the FreeType project, and may only be used, modified,
@@ -26,6 +26,7 @@ AUTOF_COMPILE := $(FT_COMPILE) $I$(subst /,$(COMPILER_SEP),$(AUTOF_DIR))
# AUTOF driver sources (i.e., C files)
#
AUTOF_DRV_SRC := $(AUTOF_DIR)/afangles.c \
+ $(AUTOF_DIR)/afblue.c \
$(AUTOF_DIR)/afcjk.c \
$(AUTOF_DIR)/afdummy.c \
$(AUTOF_DIR)/afglobal.c \
@@ -34,13 +35,20 @@ AUTOF_DRV_SRC := $(AUTOF_DIR)/afangles.c \
$(AUTOF_DIR)/aflatin.c \
$(AUTOF_DIR)/afloader.c \
$(AUTOF_DIR)/afmodule.c \
- $(AUTOF_DIR)/afwarp.c
+ $(AUTOF_DIR)/afpic.c \
+ $(AUTOF_DIR)/afranges.c \
+ $(AUTOF_DIR)/afwarp.c \
+ $(AUTOF_DIR)/hbshim.c
# AUTOF driver headers
#
AUTOF_DRV_H := $(AUTOF_DRV_SRC:%c=%h) \
+ $(AUTOF_DIR)/afcover.h \
+ $(AUTOF_DIR)/aferrors.h \
+ $(AUTOF_DIR)/afscript.h \
+ $(AUTOF_DIR)/afstyles.h \
$(AUTOF_DIR)/aftypes.h \
- $(AUTOF_DIR)/aferrors.h
+ $(AUTOF_DIR)/afwrtsys.h
# AUTOF driver object(s)
diff --git a/src/3rdparty/freetype/src/base/basepic.c b/src/3rdparty/freetype/src/base/basepic.c
index c0bccb6959..aeb6fd5777 100644
--- a/src/3rdparty/freetype/src/base/basepic.c
+++ b/src/3rdparty/freetype/src/base/basepic.c
@@ -4,7 +4,7 @@
/* */
/* The FreeType position independent code services for base. */
/* */
-/* Copyright 2009 by */
+/* Copyright 2009, 2012, 2013 by */
/* Oran Agra and Mickey Gabel. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -21,24 +21,42 @@
#include FT_INTERNAL_OBJECTS_H
#include "basepic.h"
+
#ifdef FT_CONFIG_OPTION_PIC
/* forward declaration of PIC init functions from ftglyph.c */
- void FT_Init_Class_ft_outline_glyph_class(FT_Glyph_Class*);
- void FT_Init_Class_ft_bitmap_glyph_class(FT_Glyph_Class*);
+ void
+ FT_Init_Class_ft_outline_glyph_class( FT_Glyph_Class* clazz );
+
+ void
+ FT_Init_Class_ft_bitmap_glyph_class( FT_Glyph_Class* clazz );
+
+#ifdef FT_CONFIG_OPTION_MAC_FONTS
+ /* forward declaration of PIC init function from ftrfork.c */
+ /* (not modularized) */
+ void
+ FT_Init_Table_ft_raccess_guess_table( ft_raccess_guess_rec* record );
+#endif
/* forward declaration of PIC init functions from ftinit.c */
- FT_Error ft_create_default_module_classes(FT_Library);
- void ft_destroy_default_module_classes(FT_Library);
+ FT_Error
+ ft_create_default_module_classes( FT_Library library );
+
+ void
+ ft_destroy_default_module_classes( FT_Library library );
+
void
- ft_base_pic_free( FT_Library library )
+ ft_base_pic_free( FT_Library library )
{
- FT_PIC_Container* pic_container = &library->pic_container;
- FT_Memory memory = library->memory;
+ FT_PIC_Container* pic_container = &library->pic_container;
+ FT_Memory memory = library->memory;
+
+
if ( pic_container->base )
{
- /* Destroy default module classes (in case FT_Add_Default_Modules was used) */
+ /* destroy default module classes */
+ /* (in case FT_Add_Default_Modules was used) */
ft_destroy_default_module_classes( library );
FT_FREE( pic_container->base );
@@ -48,17 +66,18 @@
FT_Error
- ft_base_pic_init( FT_Library library )
+ ft_base_pic_init( FT_Library library )
{
- FT_PIC_Container* pic_container = &library->pic_container;
- FT_Error error = FT_Err_Ok;
- BasePIC* container;
- FT_Memory memory = library->memory;
+ FT_PIC_Container* pic_container = &library->pic_container;
+ FT_Error error = FT_Err_Ok;
+ BasePIC* container = NULL;
+ FT_Memory memory = library->memory;
+
/* allocate pointer, clear and set global container pointer */
- if ( FT_ALLOC ( container, sizeof ( *container ) ) )
+ if ( FT_ALLOC( container, sizeof ( *container ) ) )
return error;
- FT_MEM_SET( container, 0, sizeof(*container) );
+ FT_MEM_SET( container, 0, sizeof ( *container ) );
pic_container->base = container;
/* initialize default modules list and pointers */
@@ -66,17 +85,23 @@
if ( error )
goto Exit;
- /* initialize pointer table - this is how the module usually expects this data */
- FT_Init_Class_ft_outline_glyph_class(&container->ft_outline_glyph_class);
- FT_Init_Class_ft_bitmap_glyph_class(&container->ft_bitmap_glyph_class);
-
-Exit:
- if(error)
- ft_base_pic_free(library);
+ /* initialize pointer table - */
+ /* this is how the module usually expects this data */
+ FT_Init_Class_ft_outline_glyph_class(
+ &container->ft_outline_glyph_class );
+ FT_Init_Class_ft_bitmap_glyph_class(
+ &container->ft_bitmap_glyph_class );
+#ifdef FT_CONFIG_OPTION_MAC_FONTS
+ FT_Init_Table_ft_raccess_guess_table(
+ (ft_raccess_guess_rec*)&container->ft_raccess_guess_table );
+#endif
+
+ Exit:
+ if ( error )
+ ft_base_pic_free( library );
return error;
}
-
#endif /* FT_CONFIG_OPTION_PIC */
diff --git a/src/3rdparty/freetype/src/base/basepic.h b/src/3rdparty/freetype/src/base/basepic.h
index bb17745769..329d7c8fd6 100644
--- a/src/3rdparty/freetype/src/base/basepic.h
+++ b/src/3rdparty/freetype/src/base/basepic.h
@@ -19,40 +19,68 @@
#ifndef __BASEPIC_H__
#define __BASEPIC_H__
-
+
FT_BEGIN_HEADER
#include FT_INTERNAL_PIC_H
#ifndef FT_CONFIG_OPTION_PIC
-#define FT_OUTLINE_GLYPH_CLASS_GET &ft_outline_glyph_class
-#define FT_BITMAP_GLYPH_CLASS_GET &ft_bitmap_glyph_class
-#define FT_DEFAULT_MODULES_GET ft_default_modules
+
+#define FT_OUTLINE_GLYPH_CLASS_GET &ft_outline_glyph_class
+#define FT_BITMAP_GLYPH_CLASS_GET &ft_bitmap_glyph_class
+#define FT_DEFAULT_MODULES_GET ft_default_modules
+
+#ifdef FT_CONFIG_OPTION_GUESSING_EMBEDDED_RFORK
+#define FT_RACCESS_GUESS_TABLE_GET ft_raccess_guess_table
+#endif
#else /* FT_CONFIG_OPTION_PIC */
#include FT_GLYPH_H
- typedef struct BasePIC_
+#ifdef FT_CONFIG_OPTION_GUESSING_EMBEDDED_RFORK
+#include FT_INTERNAL_RFORK_H
+#endif
+
+
+ typedef struct BasePIC_
{
- FT_Module_Class** default_module_classes;
- FT_Glyph_Class ft_outline_glyph_class;
- FT_Glyph_Class ft_bitmap_glyph_class;
+ FT_Module_Class** default_module_classes;
+ FT_Glyph_Class ft_outline_glyph_class;
+ FT_Glyph_Class ft_bitmap_glyph_class;
+
+#ifdef FT_CONFIG_OPTION_GUESSING_EMBEDDED_RFORK
+ ft_raccess_guess_rec ft_raccess_guess_table[FT_RACCESS_N_RULES];
+#endif
+
} BasePIC;
-#define GET_PIC(lib) ((BasePIC*)((lib)->pic_container.base))
-#define FT_OUTLINE_GLYPH_CLASS_GET (&GET_PIC(library)->ft_outline_glyph_class)
-#define FT_BITMAP_GLYPH_CLASS_GET (&GET_PIC(library)->ft_bitmap_glyph_class)
-#define FT_DEFAULT_MODULES_GET (GET_PIC(library)->default_module_classes)
+#define GET_PIC( lib ) ( (BasePIC*)( (lib)->pic_container.base ) )
+
+#define FT_OUTLINE_GLYPH_CLASS_GET \
+ ( &GET_PIC( library )->ft_outline_glyph_class )
+#define FT_BITMAP_GLYPH_CLASS_GET \
+ ( &GET_PIC( library )->ft_bitmap_glyph_class )
+#define FT_DEFAULT_MODULES_GET \
+ ( GET_PIC( library )->default_module_classes )
+
+#ifdef FT_CONFIG_OPTION_GUESSING_EMBEDDED_RFORK
+#define FT_RACCESS_GUESS_TABLE_GET \
+ ( GET_PIC( library )->ft_raccess_guess_table )
+#endif
+
+
+ /* see basepic.c for the implementation */
void
- ft_base_pic_free( FT_Library library );
+ ft_base_pic_free( FT_Library library );
FT_Error
- ft_base_pic_init( FT_Library library );
+ ft_base_pic_init( FT_Library library );
#endif /* FT_CONFIG_OPTION_PIC */
- /* */
+
+ /* */
FT_END_HEADER
diff --git a/src/3rdparty/freetype/src/base/ftadvanc.c b/src/3rdparty/freetype/src/base/ftadvanc.c
index 8ab7fcb927..18884efe19 100644
--- a/src/3rdparty/freetype/src/base/ftadvanc.c
+++ b/src/3rdparty/freetype/src/base/ftadvanc.c
@@ -4,7 +4,7 @@
/* */
/* Quick computation of advance widths (body). */
/* */
-/* Copyright 2008, 2009 by */
+/* Copyright 2008, 2009, 2011, 2013, 2014 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -17,6 +17,8 @@
#include <ft2build.h>
+#include FT_INTERNAL_DEBUG_H
+
#include FT_ADVANCES_H
#include FT_INTERNAL_OBJECTS_H
@@ -35,7 +37,7 @@
return FT_Err_Ok;
if ( face->size == NULL )
- return FT_Err_Invalid_Size_Handle;
+ return FT_THROW( Invalid_Size_Handle );
if ( flags & FT_LOAD_VERTICAL_LAYOUT )
scale = face->size->metrics.y_scale;
@@ -76,10 +78,13 @@
if ( !face )
- return FT_Err_Invalid_Face_Handle;
+ return FT_THROW( Invalid_Face_Handle );
+
+ if ( !padvance )
+ return FT_THROW( Invalid_Argument );
if ( gindex >= (FT_UInt)face->num_glyphs )
- return FT_Err_Invalid_Glyph_Index;
+ return FT_THROW( Invalid_Glyph_Index );
func = face->driver->clazz->get_advances;
if ( func && LOAD_ADVANCE_FAST_CHECK( flags ) )
@@ -91,7 +96,7 @@
if ( !error )
return _ft_face_scale_advances( face, padvance, 1, flags );
- if ( error != FT_ERROR_BASE( FT_Err_Unimplemented_Feature ) )
+ if ( FT_ERR_NEQ( error, Unimplemented_Feature ) )
return error;
}
@@ -114,12 +119,15 @@
if ( !face )
- return FT_Err_Invalid_Face_Handle;
+ return FT_THROW( Invalid_Face_Handle );
+
+ if ( !padvances )
+ return FT_THROW( Invalid_Argument );
num = (FT_UInt)face->num_glyphs;
end = start + count;
if ( start >= num || end < start || end > num )
- return FT_Err_Invalid_Glyph_Index;
+ return FT_THROW( Invalid_Glyph_Index );
if ( count == 0 )
return FT_Err_Ok;
@@ -129,16 +137,16 @@
{
error = func( face, start, count, flags, padvances );
if ( !error )
- goto Exit;
+ return _ft_face_scale_advances( face, padvances, count, flags );
- if ( error != FT_ERROR_BASE( FT_Err_Unimplemented_Feature ) )
+ if ( FT_ERR_NEQ( error, Unimplemented_Feature ) )
return error;
}
error = FT_Err_Ok;
if ( flags & FT_ADVANCE_FLAG_FAST_ONLY )
- return FT_Err_Unimplemented_Feature;
+ return FT_THROW( Unimplemented_Feature );
flags |= (FT_UInt32)FT_LOAD_ADVANCE_ONLY;
for ( nn = 0; nn < count; nn++ )
@@ -147,16 +155,13 @@
if ( error )
break;
+ /* scale from 26.6 to 16.16 */
padvances[nn] = ( flags & FT_LOAD_VERTICAL_LAYOUT )
- ? face->glyph->advance.y
- : face->glyph->advance.x;
+ ? face->glyph->advance.y << 10
+ : face->glyph->advance.x << 10;
}
- if ( error )
- return error;
-
- Exit:
- return _ft_face_scale_advances( face, padvances, count, flags );
+ return error;
}
diff --git a/src/3rdparty/freetype/src/base/ftbase.c b/src/3rdparty/freetype/src/base/ftbase.c
index 6a27ea95a6..5e5d70ec4b 100644
--- a/src/3rdparty/freetype/src/base/ftbase.c
+++ b/src/3rdparty/freetype/src/base/ftbase.c
@@ -34,7 +34,7 @@
#include "fttrigon.c"
#include "ftutil.c"
-#if defined( FT_MACINTOSH ) && !defined ( DARWIN_NO_CARBON )
+#ifdef FT_MACINTOSH
#include "ftmac.c"
#endif
diff --git a/src/3rdparty/freetype/src/base/ftbase.h b/src/3rdparty/freetype/src/base/ftbase.h
index 1dc49f3bdf..51a1db18b8 100644
--- a/src/3rdparty/freetype/src/base/ftbase.h
+++ b/src/3rdparty/freetype/src/base/ftbase.h
@@ -49,6 +49,18 @@ FT_BEGIN_HEADER
FT_Face *aface );
+#if defined( FT_CONFIG_OPTION_GUESSING_EMBEDDED_RFORK ) && \
+ !defined( FT_MACINTOSH )
+ /* Mac OS X/Darwin kernel often changes recommended method to access */
+ /* the resource fork and older methods makes the kernel issue the */
+ /* warning of deprecated method. To calm it down, the methods based */
+ /* on Darwin VFS should be grouped and skip the rest methods after */
+ /* the case the resource is opened but found to lack a font in it. */
+ FT_LOCAL( FT_Bool )
+ ft_raccess_rule_by_darwin_vfs( FT_Library library, FT_UInt rule_index );
+#endif
+
+
FT_END_HEADER
#endif /* __FTBASE_H__ */
diff --git a/src/3rdparty/freetype/src/base/ftbbox.c b/src/3rdparty/freetype/src/base/ftbbox.c
index 4b8e9112fe..f9a17517ec 100644
--- a/src/3rdparty/freetype/src/base/ftbbox.c
+++ b/src/3rdparty/freetype/src/base/ftbbox.c
@@ -4,7 +4,7 @@
/* */
/* FreeType bbox computation (body). */
/* */
-/* Copyright 1996-2001, 2002, 2004, 2006, 2010 by */
+/* Copyright 1996-2002, 2004, 2006, 2010, 2013, 2014 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used */
@@ -25,6 +25,8 @@
#include <ft2build.h>
+#include FT_INTERNAL_DEBUG_H
+
#include FT_BBOX_H
#include FT_IMAGE_H
#include FT_OUTLINE_H
@@ -40,16 +42,35 @@
} TBBox_Rec;
+#define FT_UPDATE_BBOX( p, bbox ) \
+ FT_BEGIN_STMNT \
+ if ( p->x < bbox.xMin ) \
+ bbox.xMin = p->x; \
+ if ( p->x > bbox.xMax ) \
+ bbox.xMax = p->x; \
+ if ( p->y < bbox.yMin ) \
+ bbox.yMin = p->y; \
+ if ( p->y > bbox.yMax ) \
+ bbox.yMax = p->y; \
+ FT_END_STMNT
+
+#define CHECK_X( p, bbox ) \
+ ( p->x < bbox.xMin || p->x > bbox.xMax )
+
+#define CHECK_Y( p, bbox ) \
+ ( p->y < bbox.yMin || p->y > bbox.yMax )
+
+
/*************************************************************************/
/* */
/* <Function> */
/* BBox_Move_To */
/* */
/* <Description> */
- /* This function is used as a `move_to' and `line_to' emitter during */
+ /* This function is used as a `move_to' emitter during */
/* FT_Outline_Decompose(). It simply records the destination point */
- /* in `user->last'; no further computations are necessary since we */
- /* use the cbox as the starting bbox which must be refined. */
+ /* in `user->last'. We also update bbox in case contour starts with */
+ /* an implicit `on' point. */
/* */
/* <Input> */
/* to :: A pointer to the destination vector. */
@@ -64,17 +85,42 @@
BBox_Move_To( FT_Vector* to,
TBBox_Rec* user )
{
+ FT_UPDATE_BBOX( to, user->bbox );
+
user->last = *to;
return 0;
}
-#define CHECK_X( p, bbox ) \
- ( p->x < bbox.xMin || p->x > bbox.xMax )
+ /*************************************************************************/
+ /* */
+ /* <Function> */
+ /* BBox_Line_To */
+ /* */
+ /* <Description> */
+ /* This function is used as a `line_to' emitter during */
+ /* FT_Outline_Decompose(). It simply records the destination point */
+ /* in `user->last'; no further computations are necessary because */
+ /* bbox already contains both explicit ends of the line segment. */
+ /* */
+ /* <Input> */
+ /* to :: A pointer to the destination vector. */
+ /* */
+ /* <InOut> */
+ /* user :: A pointer to the current walk context. */
+ /* */
+ /* <Return> */
+ /* Always 0. Needed for the interface only. */
+ /* */
+ static int
+ BBox_Line_To( FT_Vector* to,
+ TBBox_Rec* user )
+ {
+ user->last = *to;
-#define CHECK_Y( p, bbox ) \
- ( p->y < bbox.yMin || p->y > bbox.yMax )
+ return 0;
+ }
/*************************************************************************/
@@ -83,7 +129,7 @@
/* BBox_Conic_Check */
/* */
/* <Description> */
- /* Finds the extrema of a 1-dimensional conic Bezier curve and update */
+ /* Find the extrema of a 1-dimensional conic Bezier curve and update */
/* a bounding range. This version uses direct computation, as it */
/* doesn't need square roots. */
/* */
@@ -106,30 +152,19 @@
FT_Pos* min,
FT_Pos* max )
{
- if ( y1 <= y3 && y2 == y1 ) /* flat arc */
- goto Suite;
-
- if ( y1 < y3 )
- {
- if ( y2 >= y1 && y2 <= y3 ) /* ascending arc */
- goto Suite;
- }
- else
- {
- if ( y2 >= y3 && y2 <= y1 ) /* descending arc */
- {
- y2 = y1;
- y1 = y3;
- y3 = y2;
- goto Suite;
- }
- }
-
- y1 = y3 = y1 - FT_MulDiv( y2 - y1, y2 - y1, y1 - 2*y2 + y3 );
-
- Suite:
- if ( y1 < *min ) *min = y1;
- if ( y3 > *max ) *max = y3;
+ /* This function is only called when a control off-point is outside */
+ /* the bbox that contains all on-points. It finds a local extremum */
+ /* within the segment, equal to (y1*y3 - y2*y2)/(y1 - 2*y2 + y3). */
+ /* Or, offsetting from y2, we get */
+
+ y1 -= y2;
+ y3 -= y2;
+ y2 += FT_MulDiv( y1, y3, y1 + y3 );
+
+ if ( y2 < *min )
+ *min = y2;
+ if ( y2 > *max )
+ *max = y2;
}
@@ -164,8 +199,8 @@
FT_Vector* to,
TBBox_Rec* user )
{
- /* we don't need to check `to' since it is always an `on' point, thus */
- /* within the bbox */
+ /* in case `to' is implicit and not included in bbox yet */
+ FT_UPDATE_BBOX( to, user->bbox );
if ( CHECK_X( control, user->bbox ) )
BBox_Conic_Check( user->last.x,
@@ -193,9 +228,9 @@
/* BBox_Cubic_Check */
/* */
/* <Description> */
- /* Finds the extrema of a 1-dimensional cubic Bezier curve and */
- /* updates a bounding range. This version uses splitting because we */
- /* don't want to use square roots and extra accuracy. */
+ /* Find the extrema of a 1-dimensional cubic Bezier curve and */
+ /* update a bounding range. This version uses iterative splitting */
+ /* because it is faster than the exact solution with square roots. */
/* */
/* <Input> */
/* p1 :: The start coordinate. */
@@ -211,294 +246,117 @@
/* */
/* max :: The address of the current maximum. */
/* */
-
-#if 0
-
- static void
- BBox_Cubic_Check( FT_Pos p1,
- FT_Pos p2,
- FT_Pos p3,
- FT_Pos p4,
- FT_Pos* min,
- FT_Pos* max )
+ static FT_Pos
+ cubic_peak( FT_Pos q1,
+ FT_Pos q2,
+ FT_Pos q3,
+ FT_Pos q4 )
{
- FT_Pos stack[32*3 + 1], *arc;
-
-
- arc = stack;
-
- arc[0] = p1;
- arc[1] = p2;
- arc[2] = p3;
- arc[3] = p4;
-
- do
+ FT_Pos peak = 0;
+ FT_Int shift;
+
+ /* This function finds a peak of a cubic segment if it is above 0 */
+ /* using iterative bisection of the segment, or returns 0. */
+ /* The fixed-point arithmetic of bisection is inherently stable */
+ /* but may loose accuracy in the two lowest bits. To compensate, */
+ /* we upscale the segment if there is room. Large values may need */
+ /* to be downscaled to avoid overflows during bisection. */
+ /* It is called with either q2 or q3 positive, which is necessary */
+ /* for the peak to exist and avoids undefined FT_MSB. */
+
+ shift = 27 -
+ FT_MSB( FT_ABS( q1 ) | FT_ABS( q2 ) | FT_ABS( q3 ) | FT_ABS( q4 ) );
+
+ if ( shift > 0 )
{
- FT_Pos y1 = arc[0];
- FT_Pos y2 = arc[1];
- FT_Pos y3 = arc[2];
- FT_Pos y4 = arc[3];
-
+ /* upscaling too much just wastes time */
+ if ( shift > 2 )
+ shift = 2;
+
+ q1 <<= shift;
+ q2 <<= shift;
+ q3 <<= shift;
+ q4 <<= shift;
+ }
+ else
+ {
+ q1 >>= -shift;
+ q2 >>= -shift;
+ q3 >>= -shift;
+ q4 >>= -shift;
+ }
- if ( y1 == y4 )
+ /* for a peak to exist above 0, the cubic segment must have */
+ /* at least one of its control off-points above 0. */
+ while ( q2 > 0 || q3 > 0 )
+ {
+ /* determine which half contains the maximum and split */
+ if ( q1 + q2 > q3 + q4 ) /* first half */
{
- if ( y1 == y2 && y1 == y3 ) /* flat */
- goto Test;
+ q4 = q4 + q3;
+ q3 = q3 + q2;
+ q2 = q2 + q1;
+ q4 = q4 + q3;
+ q3 = q3 + q2;
+ q4 = ( q4 + q3 ) / 8;
+ q3 = q3 / 4;
+ q2 = q2 / 2;
}
- else if ( y1 < y4 )
+ else /* second half */
{
- if ( y2 >= y1 && y2 <= y4 && y3 >= y1 && y3 <= y4 ) /* ascending */
- goto Test;
+ q1 = q1 + q2;
+ q2 = q2 + q3;
+ q3 = q3 + q4;
+ q1 = q1 + q2;
+ q2 = q2 + q3;
+ q1 = ( q1 + q2 ) / 8;
+ q2 = q2 / 4;
+ q3 = q3 / 2;
}
- else
+
+ /* check whether either end reached the maximum */
+ if ( q1 == q2 && q1 >= q3 )
{
- if ( y2 >= y4 && y2 <= y1 && y3 >= y4 && y3 <= y1 ) /* descending */
- {
- y2 = y1;
- y1 = y4;
- y4 = y2;
- goto Test;
- }
+ peak = q1;
+ break;
}
+ if ( q3 == q4 && q2 <= q4 )
+ {
+ peak = q4;
+ break;
+ }
+ }
- /* unknown direction -- split the arc in two */
- arc[6] = y4;
- arc[1] = y1 = ( y1 + y2 ) / 2;
- arc[5] = y4 = ( y4 + y3 ) / 2;
- y2 = ( y2 + y3 ) / 2;
- arc[2] = y1 = ( y1 + y2 ) / 2;
- arc[4] = y4 = ( y4 + y2 ) / 2;
- arc[3] = ( y1 + y4 ) / 2;
-
- arc += 3;
- goto Suite;
-
- Test:
- if ( y1 < *min ) *min = y1;
- if ( y4 > *max ) *max = y4;
- arc -= 3;
-
- Suite:
- ;
- } while ( arc >= stack );
- }
-
-#else
-
- static void
- test_cubic_extrema( FT_Pos y1,
- FT_Pos y2,
- FT_Pos y3,
- FT_Pos y4,
- FT_Fixed u,
- FT_Pos* min,
- FT_Pos* max )
- {
- /* FT_Pos a = y4 - 3*y3 + 3*y2 - y1; */
- FT_Pos b = y3 - 2*y2 + y1;
- FT_Pos c = y2 - y1;
- FT_Pos d = y1;
- FT_Pos y;
- FT_Fixed uu;
-
- FT_UNUSED ( y4 );
-
-
- /* The polynomial is */
- /* */
- /* P(x) = a*x^3 + 3b*x^2 + 3c*x + d , */
- /* */
- /* dP/dx = 3a*x^2 + 6b*x + 3c . */
- /* */
- /* However, we also have */
- /* */
- /* dP/dx(u) = 0 , */
- /* */
- /* which implies by subtraction that */
- /* */
- /* P(u) = b*u^2 + 2c*u + d . */
-
- if ( u > 0 && u < 0x10000L )
- {
- uu = FT_MulFix( u, u );
- y = d + FT_MulFix( c, 2*u ) + FT_MulFix( b, uu );
+ if ( shift > 0 )
+ peak >>= shift;
+ else
+ peak <<= -shift;
- if ( y < *min ) *min = y;
- if ( y > *max ) *max = y;
- }
+ return peak;
}
static void
- BBox_Cubic_Check( FT_Pos y1,
- FT_Pos y2,
- FT_Pos y3,
- FT_Pos y4,
+ BBox_Cubic_Check( FT_Pos p1,
+ FT_Pos p2,
+ FT_Pos p3,
+ FT_Pos p4,
FT_Pos* min,
FT_Pos* max )
{
- /* always compare first and last points */
- if ( y1 < *min ) *min = y1;
- else if ( y1 > *max ) *max = y1;
+ /* This function is only called when a control off-point is outside */
+ /* the bbox that contains all on-points. So at least one of the */
+ /* conditions below holds and cubic_peak is called with at least one */
+ /* non-zero argument. */
- if ( y4 < *min ) *min = y4;
- else if ( y4 > *max ) *max = y4;
+ if ( p2 > *max || p3 > *max )
+ *max += cubic_peak( p1 - *max, p2 - *max, p3 - *max, p4 - *max );
- /* now, try to see if there are split points here */
- if ( y1 <= y4 )
- {
- /* flat or ascending arc test */
- if ( y1 <= y2 && y2 <= y4 && y1 <= y3 && y3 <= y4 )
- return;
- }
- else /* y1 > y4 */
- {
- /* descending arc test */
- if ( y1 >= y2 && y2 >= y4 && y1 >= y3 && y3 >= y4 )
- return;
- }
-
- /* There are some split points. Find them. */
- {
- FT_Pos a = y4 - 3*y3 + 3*y2 - y1;
- FT_Pos b = y3 - 2*y2 + y1;
- FT_Pos c = y2 - y1;
- FT_Pos d;
- FT_Fixed t;
-
-
- /* We need to solve `ax^2+2bx+c' here, without floating points! */
- /* The trick is to normalize to a different representation in order */
- /* to use our 16.16 fixed point routines. */
- /* */
- /* We compute FT_MulFix(b,b) and FT_MulFix(a,c) after normalization. */
- /* These values must fit into a single 16.16 value. */
- /* */
- /* We normalize a, b, and c to `8.16' fixed float values to ensure */
- /* that its product is held in a `16.16' value. */
-
- {
- FT_ULong t1, t2;
- int shift = 0;
-
-
- /* The following computation is based on the fact that for */
- /* any value `y', if `n' is the position of the most */
- /* significant bit of `abs(y)' (starting from 0 for the */
- /* least significant bit), then `y' is in the range */
- /* */
- /* -2^n..2^n-1 */
- /* */
- /* We want to shift `a', `b', and `c' concurrently in order */
- /* to ensure that they all fit in 8.16 values, which maps */
- /* to the integer range `-2^23..2^23-1'. */
- /* */
- /* Necessarily, we need to shift `a', `b', and `c' so that */
- /* the most significant bit of its absolute values is at */
- /* _most_ at position 23. */
- /* */
- /* We begin by computing `t1' as the bitwise `OR' of the */
- /* absolute values of `a', `b', `c'. */
-
- t1 = (FT_ULong)( ( a >= 0 ) ? a : -a );
- t2 = (FT_ULong)( ( b >= 0 ) ? b : -b );
- t1 |= t2;
- t2 = (FT_ULong)( ( c >= 0 ) ? c : -c );
- t1 |= t2;
-
- /* Now we can be sure that the most significant bit of `t1' */
- /* is the most significant bit of either `a', `b', or `c', */
- /* depending on the greatest integer range of the particular */
- /* variable. */
- /* */
- /* Next, we compute the `shift', by shifting `t1' as many */
- /* times as necessary to move its MSB to position 23. This */
- /* corresponds to a value of `t1' that is in the range */
- /* 0x40_0000..0x7F_FFFF. */
- /* */
- /* Finally, we shift `a', `b', and `c' by the same amount. */
- /* This ensures that all values are now in the range */
- /* -2^23..2^23, i.e., they are now expressed as 8.16 */
- /* fixed-float numbers. This also means that we are using */
- /* 24 bits of precision to compute the zeros, independently */
- /* of the range of the original polynomial coefficients. */
- /* */
- /* This algorithm should ensure reasonably accurate values */
- /* for the zeros. Note that they are only expressed with */
- /* 16 bits when computing the extrema (the zeros need to */
- /* be in 0..1 exclusive to be considered part of the arc). */
-
- if ( t1 == 0 ) /* all coefficients are 0! */
- return;
-
- if ( t1 > 0x7FFFFFUL )
- {
- do
- {
- shift++;
- t1 >>= 1;
-
- } while ( t1 > 0x7FFFFFUL );
-
- /* this loses some bits of precision, but we use 24 of them */
- /* for the computation anyway */
- a >>= shift;
- b >>= shift;
- c >>= shift;
- }
- else if ( t1 < 0x400000UL )
- {
- do
- {
- shift++;
- t1 <<= 1;
-
- } while ( t1 < 0x400000UL );
-
- a <<= shift;
- b <<= shift;
- c <<= shift;
- }
- }
-
- /* handle a == 0 */
- if ( a == 0 )
- {
- if ( b != 0 )
- {
- t = - FT_DivFix( c, b ) / 2;
- test_cubic_extrema( y1, y2, y3, y4, t, min, max );
- }
- }
- else
- {
- /* solve the equation now */
- d = FT_MulFix( b, b ) - FT_MulFix( a, c );
- if ( d < 0 )
- return;
-
- if ( d == 0 )
- {
- /* there is a single split point at -b/a */
- t = - FT_DivFix( b, a );
- test_cubic_extrema( y1, y2, y3, y4, t, min, max );
- }
- else
- {
- /* there are two solutions; we need to filter them */
- d = FT_SqrtFixed( (FT_Int32)d );
- t = - FT_DivFix( b - d, a );
- test_cubic_extrema( y1, y2, y3, y4, t, min, max );
-
- t = - FT_DivFix( b + d, a );
- test_cubic_extrema( y1, y2, y3, y4, t, min, max );
- }
- }
- }
+ /* now flip the signs to update the minimum */
+ if ( p2 < *min || p3 < *min )
+ *min -= cubic_peak( *min - p1, *min - p2, *min - p3, *min - p4 );
}
-#endif
-
/*************************************************************************/
/* */
@@ -534,8 +392,9 @@
FT_Vector* to,
TBBox_Rec* user )
{
- /* we don't need to check `to' since it is always an `on' point, thus */
- /* within the bbox */
+ /* We don't need to check `to' since it is always an on-point, */
+ /* thus within the bbox. Only segments with an off-point outside */
+ /* the bbox can possibly reach new extreme values. */
if ( CHECK_X( control1, user->bbox ) ||
CHECK_X( control2, user->bbox ) )
@@ -560,31 +419,35 @@
return 0;
}
-FT_DEFINE_OUTLINE_FUNCS(bbox_interface,
+
+ FT_DEFINE_OUTLINE_FUNCS(bbox_interface,
(FT_Outline_MoveTo_Func) BBox_Move_To,
- (FT_Outline_LineTo_Func) BBox_Move_To,
+ (FT_Outline_LineTo_Func) BBox_Line_To,
(FT_Outline_ConicTo_Func)BBox_Conic_To,
(FT_Outline_CubicTo_Func)BBox_Cubic_To,
0, 0
)
+
/* documentation is in ftbbox.h */
FT_EXPORT_DEF( FT_Error )
FT_Outline_Get_BBox( FT_Outline* outline,
FT_BBox *abbox )
{
- FT_BBox cbox;
- FT_BBox bbox;
+ FT_BBox cbox = { 0x7FFFFFFFL, 0x7FFFFFFFL,
+ -0x7FFFFFFFL, -0x7FFFFFFFL };
+ FT_BBox bbox = { 0x7FFFFFFFL, 0x7FFFFFFFL,
+ -0x7FFFFFFFL, -0x7FFFFFFFL };
FT_Vector* vec;
FT_UShort n;
if ( !abbox )
- return FT_Err_Invalid_Argument;
+ return FT_THROW( Invalid_Argument );
if ( !outline )
- return FT_Err_Invalid_Outline;
+ return FT_THROW( Invalid_Outline );
/* if outline is empty, return (0,0,0,0) */
if ( outline->n_points == 0 || outline->n_contours <= 0 )
@@ -599,32 +462,13 @@ FT_DEFINE_OUTLINE_FUNCS(bbox_interface,
/* coincide, we exit immediately. */
vec = outline->points;
- bbox.xMin = bbox.xMax = cbox.xMin = cbox.xMax = vec->x;
- bbox.yMin = bbox.yMax = cbox.yMin = cbox.yMax = vec->y;
- vec++;
- for ( n = 1; n < outline->n_points; n++ )
+ for ( n = 0; n < outline->n_points; n++ )
{
- FT_Pos x = vec->x;
- FT_Pos y = vec->y;
-
-
- /* update control box */
- if ( x < cbox.xMin ) cbox.xMin = x;
- if ( x > cbox.xMax ) cbox.xMax = x;
-
- if ( y < cbox.yMin ) cbox.yMin = y;
- if ( y > cbox.yMax ) cbox.yMax = y;
+ FT_UPDATE_BBOX( vec, cbox);
if ( FT_CURVE_TAG( outline->tags[n] ) == FT_CURVE_TAG_ON )
- {
- /* update bbox for `on' points only */
- if ( x < bbox.xMin ) bbox.xMin = x;
- if ( x > bbox.xMax ) bbox.xMax = x;
-
- if ( y < bbox.yMin ) bbox.yMin = y;
- if ( y > bbox.yMax ) bbox.yMax = y;
- }
+ FT_UPDATE_BBOX( vec, bbox);
vec++;
}
diff --git a/src/3rdparty/freetype/src/base/ftbdf.c b/src/3rdparty/freetype/src/base/ftbdf.c
index d29adf09dd..d9dcbad5ed 100644
--- a/src/3rdparty/freetype/src/base/ftbdf.c
+++ b/src/3rdparty/freetype/src/base/ftbdf.c
@@ -4,7 +4,7 @@
/* */
/* FreeType API for accessing BDF-specific strings (body). */
/* */
-/* Copyright 2002, 2003, 2004 by */
+/* Copyright 2002-2004, 2013, 2014 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -17,6 +17,8 @@
#include <ft2build.h>
+#include FT_INTERNAL_DEBUG_H
+
#include FT_INTERNAL_OBJECTS_H
#include FT_SERVICE_BDF_H
@@ -32,19 +34,18 @@
const char* encoding = NULL;
const char* registry = NULL;
+ FT_Service_BDF service;
- error = FT_Err_Invalid_Argument;
-
- if ( face )
- {
- FT_Service_BDF service;
+ if ( !face )
+ return FT_THROW( Invalid_Face_Handle );
- FT_FACE_FIND_SERVICE( face, service, BDF );
+ FT_FACE_FIND_SERVICE( face, service, BDF );
- if ( service && service->get_charset_id )
- error = service->get_charset_id( face, &encoding, &registry );
- }
+ if ( service && service->get_charset_id )
+ error = service->get_charset_id( face, &encoding, &registry );
+ else
+ error = FT_THROW( Invalid_Argument );
if ( acharset_encoding )
*acharset_encoding = encoding;
@@ -65,23 +66,25 @@
{
FT_Error error;
+ FT_Service_BDF service;
- error = FT_Err_Invalid_Argument;
- aproperty->type = BDF_PROPERTY_TYPE_NONE;
+ if ( !face )
+ return FT_THROW( Invalid_Face_Handle );
- if ( face )
- {
- FT_Service_BDF service;
+ if ( !aproperty )
+ return FT_THROW( Invalid_Argument );
+ aproperty->type = BDF_PROPERTY_TYPE_NONE;
- FT_FACE_FIND_SERVICE( face, service, BDF );
+ FT_FACE_FIND_SERVICE( face, service, BDF );
- if ( service && service->get_property )
- error = service->get_property( face, prop_name, aproperty );
- }
+ if ( service && service->get_property )
+ error = service->get_property( face, prop_name, aproperty );
+ else
+ error = FT_THROW( Invalid_Argument );
- return error;
+ return error;
}
diff --git a/src/3rdparty/freetype/src/base/ftbitmap.c b/src/3rdparty/freetype/src/base/ftbitmap.c
index 46fcce6136..19a1a80795 100644
--- a/src/3rdparty/freetype/src/base/ftbitmap.c
+++ b/src/3rdparty/freetype/src/base/ftbitmap.c
@@ -4,7 +4,7 @@
/* */
/* FreeType utility functions for bitmaps (body). */
/* */
-/* Copyright 2004, 2005, 2006, 2007, 2008, 2009 by */
+/* Copyright 2004-2009, 2011, 2013, 2014 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -17,6 +17,8 @@
#include <ft2build.h>
+#include FT_INTERNAL_DEBUG_H
+
#include FT_BITMAP_H
#include FT_IMAGE_H
#include FT_INTERNAL_OBJECTS_H
@@ -31,7 +33,8 @@
FT_EXPORT_DEF( void )
FT_Bitmap_New( FT_Bitmap *abitmap )
{
- *abitmap = null_bitmap;
+ if ( abitmap )
+ *abitmap = null_bitmap;
}
@@ -42,25 +45,42 @@
const FT_Bitmap *source,
FT_Bitmap *target)
{
- FT_Memory memory = library->memory;
+ FT_Memory memory;
FT_Error error = FT_Err_Ok;
- FT_Int pitch = source->pitch;
- FT_ULong size;
+ FT_Int pitch;
+ FT_ULong size;
+
+ FT_Int source_pitch_sign, target_pitch_sign;
+
+
+ if ( !library )
+ return FT_THROW( Invalid_Library_Handle );
+
+ if ( !source || !target )
+ return FT_THROW( Invalid_Argument );
if ( source == target )
return FT_Err_Ok;
+ source_pitch_sign = source->pitch < 0 ? -1 : 1;
+ target_pitch_sign = target->pitch < 0 ? -1 : 1;
+
if ( source->buffer == NULL )
{
*target = *source;
+ if ( source_pitch_sign != target_pitch_sign )
+ target->pitch = -target->pitch;
return FT_Err_Ok;
}
+ memory = library->memory;
+ pitch = source->pitch;
+
if ( pitch < 0 )
pitch = -pitch;
- size = (FT_ULong)( pitch * source->rows );
+ size = (FT_ULong)pitch * source->rows;
if ( target->buffer )
{
@@ -68,9 +88,9 @@
FT_ULong target_size;
- if ( target_pitch < 0 )
+ if ( target_pitch < 0 )
target_pitch = -target_pitch;
- target_size = (FT_ULong)( target_pitch * target->rows );
+ target_size = (FT_ULong)target_pitch * target->rows;
if ( target_size != size )
(void)FT_QREALLOC( target->buffer, target_size, size );
@@ -87,13 +107,35 @@
*target = *source;
target->buffer = p;
- FT_MEM_COPY( target->buffer, source->buffer, size );
+ if ( source_pitch_sign == target_pitch_sign )
+ FT_MEM_COPY( target->buffer, source->buffer, size );
+ else
+ {
+ /* take care of bitmap flow */
+ FT_UInt i;
+ FT_Byte* s = source->buffer;
+ FT_Byte* t = target->buffer;
+
+
+ t += pitch * ( target->rows - 1 );
+
+ for ( i = target->rows; i > 0; i-- )
+ {
+ FT_ARRAY_COPY( t, s, pitch );
+
+ s += pitch;
+ t -= pitch;
+ }
+ }
}
return error;
}
+ /* Enlarge `bitmap' horizontally and vertically by `xpixels' */
+ /* and `ypixels', respectively. */
+
static FT_Error
ft_bitmap_assure_buffer( FT_Memory memory,
FT_Bitmap* bitmap,
@@ -104,8 +146,8 @@
int pitch;
int new_pitch;
FT_UInt bpp;
- FT_Int i, width, height;
- unsigned char* buffer;
+ FT_UInt i, width, height;
+ unsigned char* buffer = NULL;
width = bitmap->width;
@@ -135,24 +177,24 @@
new_pitch = ( width + xpixels );
break;
default:
- return FT_Err_Invalid_Glyph_Format;
+ return FT_THROW( Invalid_Glyph_Format );
}
/* if no need to allocate memory */
if ( ypixels == 0 && new_pitch <= pitch )
{
/* zero the padding */
- FT_Int bit_width = pitch * 8;
- FT_Int bit_last = ( width + xpixels ) * bpp;
+ FT_UInt bit_width = pitch * 8;
+ FT_UInt bit_last = ( width + xpixels ) * bpp;
if ( bit_last < bit_width )
{
FT_Byte* line = bitmap->buffer + ( bit_last >> 3 );
FT_Byte* end = bitmap->buffer + pitch;
- FT_Int shift = bit_last & 7;
+ FT_UInt shift = bit_last & 7;
FT_UInt mask = 0xFF00U >> shift;
- FT_Int count = height;
+ FT_UInt count = height;
for ( ; count > 0; count--, line += pitch, end += pitch )
@@ -166,19 +208,22 @@
write++;
}
if ( write < end )
- FT_MEM_ZERO( write, end-write );
+ FT_MEM_ZERO( write, end - write );
}
}
return FT_Err_Ok;
}
+ /* otherwise allocate new buffer */
if ( FT_QALLOC_MULT( buffer, new_pitch, bitmap->rows + ypixels ) )
return error;
+ /* new rows get added at the top of the bitmap, */
+ /* thus take care of the flow direction */
if ( bitmap->pitch > 0 )
{
- FT_Int len = ( width * bpp + 7 ) >> 3;
+ FT_UInt len = ( width * bpp + 7 ) >> 3;
for ( i = 0; i < bitmap->rows; i++ )
@@ -187,7 +232,7 @@
}
else
{
- FT_Int len = ( width * bpp + 7 ) >> 3;
+ FT_UInt len = ( width * bpp + 7 ) >> 3;
for ( i = 0; i < bitmap->rows; i++ )
@@ -218,27 +263,28 @@
{
FT_Error error;
unsigned char* p;
- FT_Int i, x, y, pitch;
+ FT_Int i, x, pitch;
+ FT_UInt y;
FT_Int xstr, ystr;
if ( !library )
- return FT_Err_Invalid_Library_Handle;
+ return FT_THROW( Invalid_Library_Handle );
if ( !bitmap || !bitmap->buffer )
- return FT_Err_Invalid_Argument;
+ return FT_THROW( Invalid_Argument );
if ( ( ( FT_PIX_ROUND( xStrength ) >> 6 ) > FT_INT_MAX ) ||
( ( FT_PIX_ROUND( yStrength ) >> 6 ) > FT_INT_MAX ) )
- return FT_Err_Invalid_Argument;
-
+ return FT_THROW( Invalid_Argument );
+
xstr = (FT_Int)FT_PIX_ROUND( xStrength ) >> 6;
ystr = (FT_Int)FT_PIX_ROUND( yStrength ) >> 6;
if ( xstr == 0 && ystr == 0 )
return FT_Err_Ok;
else if ( xstr < 0 || ystr < 0 )
- return FT_Err_Invalid_Argument;
+ return FT_THROW( Invalid_Argument );
switch ( bitmap->pixel_mode )
{
@@ -246,17 +292,11 @@
case FT_PIXEL_MODE_GRAY4:
{
FT_Bitmap tmp;
- FT_Int align;
-
- if ( bitmap->pixel_mode == FT_PIXEL_MODE_GRAY2 )
- align = ( bitmap->width + xstr + 3 ) / 4;
- else
- align = ( bitmap->width + xstr + 1 ) / 2;
+ /* convert to 8bpp */
FT_Bitmap_New( &tmp );
-
- error = FT_Bitmap_Convert( library, bitmap, &tmp, align );
+ error = FT_Bitmap_Convert( library, bitmap, &tmp, 1 );
if ( error )
return error;
@@ -277,12 +317,17 @@
case FT_PIXEL_MODE_LCD_V:
ystr *= 3;
break;
+
+ case FT_PIXEL_MODE_BGRA:
+ /* We don't embolden color glyphs. */
+ return FT_Err_Ok;
}
error = ft_bitmap_assure_buffer( library->memory, bitmap, xstr, ystr );
if ( error )
return error;
+ /* take care of bitmap flow */
pitch = bitmap->pitch;
if ( pitch > 0 )
p = bitmap->buffer + pitch * ystr;
@@ -303,7 +348,7 @@
*/
for ( x = pitch - 1; x >= 0; x-- )
{
- unsigned char tmp;
+ unsigned char tmp;
tmp = p[x];
@@ -318,7 +363,7 @@
p[x] |= p[x - 1] << ( 8 - i );
#if 0
- if ( p[x] == 0xff )
+ if ( p[x] == 0xFF )
break;
#endif
}
@@ -328,12 +373,12 @@
{
if ( p[x] + p[x - i] > bitmap->num_grays - 1 )
{
- p[x] = (unsigned char)(bitmap->num_grays - 1);
+ p[x] = (unsigned char)( bitmap->num_grays - 1 );
break;
}
else
{
- p[x] = (unsigned char)(p[x] + p[x-i]);
+ p[x] = (unsigned char)( p[x] + p[x - i] );
if ( p[x] == bitmap->num_grays - 1 )
break;
}
@@ -369,6 +414,52 @@
}
+ static FT_Byte
+ ft_gray_for_premultiplied_srgb_bgra( const FT_Byte* bgra )
+ {
+ FT_UInt a = bgra[3];
+ FT_UInt l;
+
+
+ /* Short-circuit transparent color to avoid division by zero. */
+ if ( !a )
+ return 0;
+
+ /*
+ * Luminosity for sRGB is defined using ~0.2126,0.7152,0.0722
+ * coefficients for RGB channels *on the linear colors*.
+ * A gamma of 2.2 is fair to assume. And then, we need to
+ * undo the premultiplication too.
+ *
+ * http://accessibility.kde.org/hsl-adjusted.php
+ *
+ * We do the computation with integers only, applying a gamma of 2.0.
+ * We guarantee 32-bit arithmetic to avoid overflow but the resulting
+ * luminosity fits into 16 bits.
+ *
+ */
+
+ l = ( 4732UL /* 0.0722 * 65536 */ * bgra[0] * bgra[0] +
+ 46871UL /* 0.7152 * 65536 */ * bgra[1] * bgra[1] +
+ 13933UL /* 0.2126 * 65536 */ * bgra[2] * bgra[2] ) >> 16;
+
+ /*
+ * Final transparency can be determined as follows.
+ *
+ * - If alpha is zero, we want 0.
+ * - If alpha is zero and luminosity is zero, we want 255.
+ * - If alpha is zero and luminosity is one, we want 0.
+ *
+ * So the formula is a * (1 - l) = a - l * a.
+ *
+ * We still need to undo premultiplication by dividing l by a*a.
+ *
+ */
+
+ return (FT_Byte)( a - l / a );
+ }
+
+
/* documentation is in ftbitmap.h */
FT_EXPORT_DEF( FT_Error )
@@ -380,9 +471,15 @@
FT_Error error = FT_Err_Ok;
FT_Memory memory;
+ FT_Byte* s;
+ FT_Byte* t;
+
if ( !library )
- return FT_Err_Invalid_Library_Handle;
+ return FT_THROW( Invalid_Library_Handle );
+
+ if ( !source || !target )
+ return FT_THROW( Invalid_Argument );
memory = library->memory;
@@ -394,14 +491,17 @@
case FT_PIXEL_MODE_GRAY4:
case FT_PIXEL_MODE_LCD:
case FT_PIXEL_MODE_LCD_V:
+ case FT_PIXEL_MODE_BGRA:
{
- FT_Int pad;
- FT_Long old_size;
+ FT_Int pad, old_target_pitch, target_pitch;
+ FT_ULong old_size;
+
+ old_target_pitch = target->pitch;
+ if ( old_target_pitch < 0 )
+ old_target_pitch = -old_target_pitch;
- old_size = target->rows * target->pitch;
- if ( old_size < 0 )
- old_size = -old_size;
+ old_size = target->rows * old_target_pitch;
target->pixel_mode = FT_PIXEL_MODE_GRAY;
target->rows = source->rows;
@@ -415,26 +515,39 @@
pad = alignment - pad;
}
- target->pitch = source->width + pad;
+ target_pitch = source->width + pad;
- if ( target->rows * target->pitch > old_size &&
+ if ( target_pitch > 0 &&
+ (FT_ULong)target->rows > FT_ULONG_MAX / target_pitch )
+ return FT_THROW( Invalid_Argument );
+
+ if ( target->rows * target_pitch > old_size &&
FT_QREALLOC( target->buffer,
- old_size, target->rows * target->pitch ) )
+ old_size, target->rows * target_pitch ) )
return error;
+
+ target->pitch = target->pitch < 0 ? -target_pitch : target_pitch;
}
break;
default:
- error = FT_Err_Invalid_Argument;
+ error = FT_THROW( Invalid_Argument );
}
+ s = source->buffer;
+ t = target->buffer;
+
+ /* take care of bitmap flow */
+ if ( source->pitch < 0 )
+ s -= source->pitch * ( source->rows - 1 );
+ if ( target->pitch < 0 )
+ t -= target->pitch * ( target->rows - 1 );
+
switch ( source->pixel_mode )
{
case FT_PIXEL_MODE_MONO:
{
- FT_Byte* s = source->buffer;
- FT_Byte* t = target->buffer;
- FT_Int i;
+ FT_UInt i;
target->num_grays = 2;
@@ -443,7 +556,7 @@
{
FT_Byte* ss = s;
FT_Byte* tt = t;
- FT_Int j;
+ FT_UInt j;
/* get the full bytes */
@@ -491,12 +604,8 @@
case FT_PIXEL_MODE_LCD:
case FT_PIXEL_MODE_LCD_V:
{
- FT_Int width = source->width;
- FT_Byte* s = source->buffer;
- FT_Byte* t = target->buffer;
- FT_Int s_pitch = source->pitch;
- FT_Int t_pitch = target->pitch;
- FT_Int i;
+ FT_Int width = source->width;
+ FT_UInt i;
target->num_grays = 256;
@@ -505,8 +614,8 @@
{
FT_ARRAY_COPY( t, s, width );
- s += s_pitch;
- t += t_pitch;
+ s += source->pitch;
+ t += target->pitch;
}
}
break;
@@ -514,9 +623,7 @@
case FT_PIXEL_MODE_GRAY2:
{
- FT_Byte* s = source->buffer;
- FT_Byte* t = target->buffer;
- FT_Int i;
+ FT_UInt i;
target->num_grays = 4;
@@ -525,7 +632,7 @@
{
FT_Byte* ss = s;
FT_Byte* tt = t;
- FT_Int j;
+ FT_UInt j;
/* get the full bytes */
@@ -566,9 +673,7 @@
case FT_PIXEL_MODE_GRAY4:
{
- FT_Byte* s = source->buffer;
- FT_Byte* t = target->buffer;
- FT_Int i;
+ FT_UInt i;
target->num_grays = 16;
@@ -577,7 +682,7 @@
{
FT_Byte* ss = s;
FT_Byte* tt = t;
- FT_Int j;
+ FT_UInt j;
/* get the full bytes */
@@ -603,6 +708,34 @@
break;
+ case FT_PIXEL_MODE_BGRA:
+ {
+ FT_UInt i;
+
+
+ target->num_grays = 256;
+
+ for ( i = source->rows; i > 0; i-- )
+ {
+ FT_Byte* ss = s;
+ FT_Byte* tt = t;
+ FT_UInt j;
+
+
+ for ( j = source->width; j > 0; j-- )
+ {
+ tt[0] = ft_gray_for_premultiplied_srgb_bgra( ss );
+
+ ss += 4;
+ tt += 1;
+ }
+
+ s += source->pitch;
+ t += target->pitch;
+ }
+ }
+ break;
+
default:
;
}
@@ -646,10 +779,10 @@
if ( !library )
- return FT_Err_Invalid_Library_Handle;
+ return FT_THROW( Invalid_Library_Handle );
if ( !bitmap )
- return FT_Err_Invalid_Argument;
+ return FT_THROW( Invalid_Argument );
memory = library->memory;
diff --git a/src/3rdparty/freetype/src/base/ftcalc.c b/src/3rdparty/freetype/src/base/ftcalc.c
index 3892fabfe9..57f796803d 100644
--- a/src/3rdparty/freetype/src/base/ftcalc.c
+++ b/src/3rdparty/freetype/src/base/ftcalc.c
@@ -4,7 +4,7 @@
/* */
/* Arithmetic computations (body). */
/* */
-/* Copyright 1996-2001, 2002, 2003, 2004, 2005, 2006, 2008 by */
+/* Copyright 1996-2006, 2008, 2012-2014 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -34,21 +34,19 @@
#include <ft2build.h>
#include FT_GLYPH_H
+#include FT_TRIGONOMETRY_H
#include FT_INTERNAL_CALC_H
#include FT_INTERNAL_DEBUG_H
#include FT_INTERNAL_OBJECTS_H
-#ifdef FT_MULFIX_INLINED
+
+#ifdef FT_MULFIX_ASSEMBLER
#undef FT_MulFix
#endif
-/* we need to define a 64-bits data type here */
-
-#ifdef FT_LONG64
-
- typedef FT_INT64 FT_Int64;
+/* we need to emulate a 64-bit data type if a real one isn't available */
-#else
+#ifndef FT_LONG64
typedef struct FT_Int64_
{
@@ -57,7 +55,7 @@
} FT_Int64;
-#endif /* FT_LONG64 */
+#endif /* !FT_LONG64 */
/*************************************************************************/
@@ -70,6 +68,16 @@
#define FT_COMPONENT trace_calc
+ /* transfer sign leaving a positive number */
+#define FT_MOVE_SIGN( x, s ) \
+ FT_BEGIN_STMNT \
+ if ( x < 0 ) \
+ { \
+ x = -x; \
+ s = -s; \
+ } \
+ FT_END_STMNT
+
/* The following three functions are available regardless of whether */
/* FT_LONG64 is defined. */
@@ -78,8 +86,8 @@
FT_EXPORT_DEF( FT_Fixed )
FT_RoundFix( FT_Fixed a )
{
- return ( a >= 0 ) ? ( a + 0x8000L ) & ~0xFFFFL
- : -((-a + 0x8000L ) & ~0xFFFFL );
+ return a >= 0 ? ( a + 0x8000L ) & ~0xFFFFL
+ : -((-a + 0x8000L ) & ~0xFFFFL );
}
@@ -88,8 +96,8 @@
FT_EXPORT_DEF( FT_Fixed )
FT_CeilFix( FT_Fixed a )
{
- return ( a >= 0 ) ? ( a + 0xFFFFL ) & ~0xFFFFL
- : -((-a + 0xFFFFL ) & ~0xFFFFL );
+ return a >= 0 ? ( a + 0xFFFFL ) & ~0xFFFFL
+ : -((-a + 0xFFFFL ) & ~0xFFFFL );
}
@@ -98,43 +106,65 @@
FT_EXPORT_DEF( FT_Fixed )
FT_FloorFix( FT_Fixed a )
{
- return ( a >= 0 ) ? a & ~0xFFFFL
- : -((-a) & ~0xFFFFL );
+ return a >= 0 ? a & ~0xFFFFL
+ : -((-a) & ~0xFFFFL );
}
+#ifndef FT_MSB
-#ifdef FT_CONFIG_OPTION_OLD_INTERNALS
+ FT_BASE_DEF ( FT_Int )
+ FT_MSB( FT_UInt32 z )
+ {
+ FT_Int shift = 0;
- /* documentation is in ftcalc.h */
- FT_EXPORT_DEF( FT_Int32 )
- FT_Sqrt32( FT_Int32 x )
- {
- FT_UInt32 val, root, newroot, mask;
+ /* determine msb bit index in `shift' */
+ if ( z & 0xFFFF0000UL )
+ {
+ z >>= 16;
+ shift += 16;
+ }
+ if ( z & 0x0000FF00UL )
+ {
+ z >>= 8;
+ shift += 8;
+ }
+ if ( z & 0x000000F0UL )
+ {
+ z >>= 4;
+ shift += 4;
+ }
+ if ( z & 0x0000000CUL )
+ {
+ z >>= 2;
+ shift += 2;
+ }
+ if ( z & 0x00000002UL )
+ {
+ /* z >>= 1; */
+ shift += 1;
+ }
+ return shift;
+ }
- root = 0;
- mask = (FT_UInt32)0x40000000UL;
- val = (FT_UInt32)x;
+#endif /* !FT_MSB */
- do
- {
- newroot = root + mask;
- if ( newroot <= val )
- {
- val -= newroot;
- root = newroot + mask;
- }
- root >>= 1;
- mask >>= 2;
+ /* documentation is in ftcalc.h */
- } while ( mask != 0 );
+ FT_BASE_DEF( FT_Fixed )
+ FT_Hypot( FT_Fixed x,
+ FT_Fixed y )
+ {
+ FT_Vector v;
- return root;
- }
-#endif /* FT_CONFIG_OPTION_OLD_INTERNALS */
+ v.x = x;
+ v.y = y;
+
+ return FT_Vector_Length( &v );
+ }
#ifdef FT_LONG64
@@ -147,24 +177,21 @@
FT_Long b,
FT_Long c )
{
- FT_Int s;
+ FT_Int s = 1;
FT_Long d;
- s = 1;
- if ( a < 0 ) { a = -a; s = -1; }
- if ( b < 0 ) { b = -b; s = -s; }
- if ( c < 0 ) { c = -c; s = -s; }
+ FT_MOVE_SIGN( a, s );
+ FT_MOVE_SIGN( b, s );
+ FT_MOVE_SIGN( c, s );
d = (FT_Long)( c > 0 ? ( (FT_Int64)a * b + ( c >> 1 ) ) / c
: 0x7FFFFFFFL );
- return ( s > 0 ) ? d : -d;
+ return s < 0 ? -d : d;
}
-#ifdef TT_USE_BYTECODE_INTERPRETER
-
/* documentation is in ftcalc.h */
FT_BASE_DEF( FT_Long )
@@ -172,23 +199,20 @@
FT_Long b,
FT_Long c )
{
- FT_Int s;
+ FT_Int s = 1;
FT_Long d;
- s = 1;
- if ( a < 0 ) { a = -a; s = -1; }
- if ( b < 0 ) { b = -b; s = -s; }
- if ( c < 0 ) { c = -c; s = -s; }
+ FT_MOVE_SIGN( a, s );
+ FT_MOVE_SIGN( b, s );
+ FT_MOVE_SIGN( c, s );
d = (FT_Long)( c > 0 ? (FT_Int64)a * b / c
: 0x7FFFFFFFL );
- return ( s > 0 ) ? d : -d;
+ return s < 0 ? -d : d;
}
-#endif /* TT_USE_BYTECODE_INTERPRETER */
-
/* documentation is in freetype.h */
@@ -206,21 +230,12 @@
FT_Long c;
- if ( a < 0 )
- {
- a = -a;
- s = -1;
- }
-
- if ( b < 0 )
- {
- b = -b;
- s = -s;
- }
+ FT_MOVE_SIGN( a, s );
+ FT_MOVE_SIGN( b, s );
c = (FT_Long)( ( (FT_Int64)a * b + 0x8000L ) >> 16 );
- return ( s > 0 ) ? c : -c;
+ return s < 0 ? -c : c;
#endif /* FT_MULFIX_ASSEMBLER */
}
@@ -232,21 +247,17 @@
FT_DivFix( FT_Long a,
FT_Long b )
{
- FT_Int32 s;
- FT_UInt32 q;
+ FT_Int s = 1;
+ FT_Long q;
- s = 1;
- if ( a < 0 ) { a = -a; s = -1; }
- if ( b < 0 ) { b = -b; s = -s; }
- if ( b == 0 )
- /* check for division by 0 */
- q = 0x7FFFFFFFL;
- else
- /* compute result directly */
- q = (FT_UInt32)( ( ( (FT_Int64)a << 16 ) + ( b >> 1 ) ) / b );
+ FT_MOVE_SIGN( a, s );
+ FT_MOVE_SIGN( b, s );
- return ( s < 0 ? -(FT_Long)q : (FT_Long)q );
+ q = (FT_Long)( b > 0 ? ( ( (FT_UInt64)a << 16 ) + ( b >> 1 ) ) / b
+ : 0x7FFFFFFFL );
+
+ return s < 0 ? -q : q;
}
@@ -294,25 +305,30 @@
FT_Int i;
- q = 0;
- r = hi;
-
- if ( r >= y )
+ if ( hi >= y )
return (FT_UInt32)0x7FFFFFFFL;
- i = 32;
+ /* We shift as many bits as we can into the high register, perform */
+ /* 32-bit division with modulo there, then work through the remaining */
+ /* bits with long division. This optimization is especially noticeable */
+ /* for smaller dividends that barely use the high register. */
+
+ i = 31 - FT_MSB( hi );
+ r = ( hi << i ) | ( lo >> ( 32 - i ) ); lo <<= i; /* left 64-bit shift */
+ q = r / y;
+ r -= q * y; /* remainder */
+
+ i = 32 - i; /* bits remaining in low register */
do
{
- r <<= 1;
q <<= 1;
- r |= lo >> 31;
+ r = ( r << 1 ) | ( lo >> 31 ); lo <<= 1;
- if ( r >= (FT_UInt32)y )
+ if ( r >= y )
{
r -= y;
q |= 1;
}
- lo <<= 1;
} while ( --i );
return q;
@@ -324,7 +340,7 @@
FT_Int64* y,
FT_Int64 *z )
{
- register FT_UInt32 lo, hi;
+ FT_UInt32 lo, hi;
lo = x->lo + y->lo;
@@ -335,99 +351,134 @@
}
- /* documentation is in freetype.h */
-
- /* The FT_MulDiv function has been optimized thanks to ideas from */
- /* Graham Asher. The trick is to optimize computation when everything */
- /* fits within 32-bits (a rather common case). */
+ /* The FT_MulDiv function has been optimized thanks to ideas from */
+ /* Graham Asher and Alexei Podtelezhnikov. The trick is to optimize */
+ /* a rather common case when everything fits within 32-bits. */
+ /* */
+ /* We compute 'a*b+c/2', then divide it by 'c' (all positive values). */
+ /* */
+ /* The product of two positive numbers never exceeds the square of */
+ /* its mean values. Therefore, we always avoid the overflow by */
+ /* imposing */
+ /* */
+ /* (a + b) / 2 <= sqrt(X - c/2) , */
/* */
- /* we compute 'a*b+c/2', then divide it by 'c'. (positive values) */
+ /* where X = 2^32 - 1, the maximum unsigned 32-bit value, and using */
+ /* unsigned arithmetic. Now we replace `sqrt' with a linear function */
+ /* that is smaller or equal for all values of c in the interval */
+ /* [0;X/2]; it should be equal to sqrt(X) and sqrt(3X/4) at the */
+ /* endpoints. Substituting the linear solution and explicit numbers */
+ /* we get */
/* */
- /* 46340 is FLOOR(SQRT(2^31-1)). */
+ /* a + b <= 131071.99 - c / 122291.84 . */
/* */
- /* if ( a <= 46340 && b <= 46340 ) then ( a*b <= 0x7FFEA810 ) */
+ /* In practice, we should use a faster and even stronger inequality */
/* */
- /* 0x7FFFFFFF - 0x7FFEA810 = 0x157F0 */
+ /* a + b <= 131071 - (c >> 16) */
/* */
- /* if ( c < 0x157F0*2 ) then ( a*b+c/2 <= 0x7FFFFFFF ) */
+ /* or, alternatively, */
/* */
- /* and 2*0x157F0 = 176096 */
+ /* a + b <= 129894 - (c >> 17) . */
/* */
+ /* FT_MulFix, on the other hand, is optimized for a small value of */
+ /* the first argument, when the second argument can be much larger. */
+ /* This can be achieved by scaling the second argument and the limit */
+ /* in the above inequalities. For example, */
+ /* */
+ /* a + (b >> 8) <= (131071 >> 4) */
+ /* */
+ /* covers the practical range of use. The actual test below is a bit */
+ /* tighter to avoid the border case overflows. */
+ /* */
+ /* In the case of FT_DivFix, the exact overflow check */
+ /* */
+ /* a << 16 <= X - c/2 */
+ /* */
+ /* is scaled down by 2^16 and we use */
+ /* */
+ /* a <= 65535 - (c >> 17) . */
+
+ /* documentation is in freetype.h */
FT_EXPORT_DEF( FT_Long )
FT_MulDiv( FT_Long a,
FT_Long b,
FT_Long c )
{
- long s;
+ FT_Int s = 1;
/* XXX: this function does not allow 64-bit arguments */
if ( a == 0 || b == c )
return a;
- s = a; a = FT_ABS( a );
- s ^= b; b = FT_ABS( b );
- s ^= c; c = FT_ABS( c );
+ FT_MOVE_SIGN( a, s );
+ FT_MOVE_SIGN( b, s );
+ FT_MOVE_SIGN( c, s );
+
+ if ( c == 0 )
+ a = 0x7FFFFFFFL;
- if ( a <= 46340L && b <= 46340L && c <= 176095L && c > 0 )
- a = ( a * b + ( c >> 1 ) ) / c;
+ else if ( (FT_ULong)a + b <= 129894UL - ( c >> 17 ) )
+ a = ( (FT_ULong)a * b + ( c >> 1 ) ) / c;
- else if ( c > 0 )
+ else
{
FT_Int64 temp, temp2;
- ft_multo64( (FT_Int32)a, (FT_Int32)b, &temp );
+ ft_multo64( a, b, &temp );
temp2.hi = 0;
- temp2.lo = (FT_UInt32)(c >> 1);
+ temp2.lo = c >> 1;
+
FT_Add64( &temp, &temp2, &temp );
- a = ft_div64by32( temp.hi, temp.lo, (FT_Int32)c );
+
+ /* last attempt to ditch long division */
+ a = temp.hi == 0 ? temp.lo / c
+ : ft_div64by32( temp.hi, temp.lo, c );
}
- else
- a = 0x7FFFFFFFL;
- return ( s < 0 ? -a : a );
+ return s < 0 ? -a : a;
}
-#ifdef TT_USE_BYTECODE_INTERPRETER
-
FT_BASE_DEF( FT_Long )
FT_MulDiv_No_Round( FT_Long a,
FT_Long b,
FT_Long c )
{
- long s;
+ FT_Int s = 1;
if ( a == 0 || b == c )
return a;
- s = a; a = FT_ABS( a );
- s ^= b; b = FT_ABS( b );
- s ^= c; c = FT_ABS( c );
+ FT_MOVE_SIGN( a, s );
+ FT_MOVE_SIGN( b, s );
+ FT_MOVE_SIGN( c, s );
+
+ if ( c == 0 )
+ a = 0x7FFFFFFFL;
- if ( a <= 46340L && b <= 46340L && c > 0 )
- a = a * b / c;
+ else if ( (FT_ULong)a + b <= 131071UL )
+ a = (FT_ULong)a * b / c;
- else if ( c > 0 )
+ else
{
FT_Int64 temp;
- ft_multo64( (FT_Int32)a, (FT_Int32)b, &temp );
- a = ft_div64by32( temp.hi, temp.lo, (FT_Int32)c );
+ ft_multo64( a, b, &temp );
+
+ /* last attempt to ditch long division */
+ a = temp.hi == 0 ? temp.lo / c
+ : ft_div64by32( temp.hi, temp.lo, c );
}
- else
- a = 0x7FFFFFFFL;
- return ( s < 0 ? -a : a );
+ return s < 0 ? -a : a;
}
-#endif /* TT_USE_BYTECODE_INTERPRETER */
-
/* documentation is in freetype.h */
@@ -464,7 +515,7 @@
* Unfortunately, it doesn't work (at least not portably).
*
* It makes the assumption that right-shift on a negative signed value
- * fills the leftmost bits by copying the sign bit. This is wrong.
+ * fills the leftmost bits by copying the sign bit. This is wrong.
* According to K&R 2nd ed, section `A7.8 Shift Operators' on page 206,
* the result of right-shift of a negative signed value is
* implementation-defined. At least one implementation fills the
@@ -481,7 +532,7 @@
ua = (FT_ULong)a;
ub = (FT_ULong)b;
- if ( ua <= 2048 && ub <= 1048576L )
+ if ( ua + ( ub >> 8 ) <= 8190UL )
ua = ( ua * ub + 0x8000U ) >> 16;
else
{
@@ -499,20 +550,20 @@
#else /* 0 */
- FT_Long s;
+ FT_Int s = 1;
FT_ULong ua, ub;
if ( a == 0 || b == 0x10000L )
return a;
- s = a; a = FT_ABS( a );
- s ^= b; b = FT_ABS( b );
+ FT_MOVE_SIGN( a, s );
+ FT_MOVE_SIGN( b, s );
ua = (FT_ULong)a;
ub = (FT_ULong)b;
- if ( ua <= 2048 && ub <= 1048576L )
+ if ( ua + ( ub >> 8 ) <= 8190UL )
ua = ( ua * ub + 0x8000UL ) >> 16;
else
{
@@ -523,7 +574,7 @@
( ( al * ( ub & 0xFFFFUL ) + 0x8000UL ) >> 16 );
}
- return ( s < 0 ? -(FT_Long)ua : (FT_Long)ua );
+ return s < 0 ? -(FT_Long)ua : (FT_Long)ua;
#endif /* 0 */
@@ -536,161 +587,43 @@
FT_DivFix( FT_Long a,
FT_Long b )
{
- FT_Int32 s;
- FT_UInt32 q;
+ FT_Int s = 1;
+ FT_Long q;
/* XXX: this function does not allow 64-bit arguments */
- s = (FT_Int32)a; a = FT_ABS( a );
- s ^= (FT_Int32)b; b = FT_ABS( b );
+
+ FT_MOVE_SIGN( a, s );
+ FT_MOVE_SIGN( b, s );
if ( b == 0 )
{
/* check for division by 0 */
- q = (FT_UInt32)0x7FFFFFFFL;
+ q = 0x7FFFFFFFL;
}
- else if ( ( a >> 16 ) == 0 )
+ else if ( a <= 65535L - ( b >> 17 ) )
{
/* compute result directly */
- q = (FT_UInt32)( (a << 16) + (b >> 1) ) / (FT_UInt32)b;
+ q = (FT_Long)( ( ( (FT_ULong)a << 16 ) + ( b >> 1 ) ) / b );
}
else
{
/* we need more bits; we have to do it by hand */
FT_Int64 temp, temp2;
- temp.hi = (FT_Int32) (a >> 16);
- temp.lo = (FT_UInt32)(a << 16);
- temp2.hi = 0;
- temp2.lo = (FT_UInt32)( b >> 1 );
- FT_Add64( &temp, &temp2, &temp );
- q = ft_div64by32( temp.hi, temp.lo, (FT_Int32)b );
- }
-
- return ( s < 0 ? -(FT_Int32)q : (FT_Int32)q );
- }
-
-
-#if 0
-
- /* documentation is in ftcalc.h */
-
- FT_EXPORT_DEF( void )
- FT_MulTo64( FT_Int32 x,
- FT_Int32 y,
- FT_Int64 *z )
- {
- FT_Int32 s;
-
-
- s = x; x = FT_ABS( x );
- s ^= y; y = FT_ABS( y );
-
- ft_multo64( x, y, z );
-
- if ( s < 0 )
- {
- z->lo = (FT_UInt32)-(FT_Int32)z->lo;
- z->hi = ~z->hi + !( z->lo );
- }
- }
-
- /* apparently, the second version of this code is not compiled correctly */
- /* on Mac machines with the MPW C compiler.. tsk, tsk, tsk... */
-
-#if 1
-
- FT_EXPORT_DEF( FT_Int32 )
- FT_Div64by32( FT_Int64* x,
- FT_Int32 y )
- {
- FT_Int32 s;
- FT_UInt32 q, r, i, lo;
-
-
- s = x->hi;
- if ( s < 0 )
- {
- x->lo = (FT_UInt32)-(FT_Int32)x->lo;
- x->hi = ~x->hi + !x->lo;
- }
- s ^= y; y = FT_ABS( y );
-
- /* Shortcut */
- if ( x->hi == 0 )
- {
- if ( y > 0 )
- q = x->lo / y;
- else
- q = 0x7FFFFFFFL;
-
- return ( s < 0 ? -(FT_Int32)q : (FT_Int32)q );
- }
-
- r = x->hi;
- lo = x->lo;
-
- if ( r >= (FT_UInt32)y ) /* we know y is to be treated as unsigned here */
- return ( s < 0 ? 0x80000001UL : 0x7FFFFFFFUL );
- /* Return Max/Min Int32 if division overflow. */
- /* This includes division by zero! */
- q = 0;
- for ( i = 0; i < 32; i++ )
- {
- r <<= 1;
- q <<= 1;
- r |= lo >> 31;
-
- if ( r >= (FT_UInt32)y )
- {
- r -= y;
- q |= 1;
- }
- lo <<= 1;
- }
-
- return ( s < 0 ? -(FT_Int32)q : (FT_Int32)q );
- }
-
-#else /* 0 */
-
- FT_EXPORT_DEF( FT_Int32 )
- FT_Div64by32( FT_Int64* x,
- FT_Int32 y )
- {
- FT_Int32 s;
- FT_UInt32 q;
-
-
- s = x->hi;
- if ( s < 0 )
- {
- x->lo = (FT_UInt32)-(FT_Int32)x->lo;
- x->hi = ~x->hi + !x->lo;
- }
- s ^= y; y = FT_ABS( y );
-
- /* Shortcut */
- if ( x->hi == 0 )
- {
- if ( y > 0 )
- q = ( x->lo + ( y >> 1 ) ) / y;
- else
- q = 0x7FFFFFFFL;
+ temp.hi = a >> 16;
+ temp.lo = a << 16;
+ temp2.hi = 0;
+ temp2.lo = b >> 1;
- return ( s < 0 ? -(FT_Int32)q : (FT_Int32)q );
+ FT_Add64( &temp, &temp2, &temp );
+ q = (FT_Long)ft_div64by32( temp.hi, temp.lo, b );
}
- q = ft_div64by32( x->hi, x->lo, y );
-
- return ( s < 0 ? -(FT_Int32)q : (FT_Int32)q );
+ return s < 0 ? -q : q;
}
-#endif /* 0 */
-
-#endif /* 0 */
-
#endif /* FT_LONG64 */
@@ -726,14 +659,14 @@
if ( !matrix )
- return FT_Err_Invalid_Argument;
+ return FT_THROW( Invalid_Argument );
/* compute discriminant */
delta = FT_MulFix( matrix->xx, matrix->yy ) -
FT_MulFix( matrix->xy, matrix->yx );
if ( !delta )
- return FT_Err_Invalid_Argument; /* matrix can't be inverted */
+ return FT_THROW( Invalid_Argument ); /* matrix can't be inverted */
matrix->xy = - FT_DivFix( matrix->xy, delta );
matrix->yx = - FT_DivFix( matrix->yx, delta );
@@ -799,6 +732,8 @@
}
+#if 0
+
/* documentation is in ftcalc.h */
FT_BASE_DEF( FT_Int32 )
@@ -833,6 +768,8 @@
return (FT_Int32)root;
}
+#endif /* 0 */
+
/* documentation is in ftcalc.h */
@@ -922,35 +859,40 @@
FT_Pos out_x,
FT_Pos out_y )
{
- FT_Pos ax = in_x;
- FT_Pos ay = in_y;
-
- FT_Pos d_in, d_out, d_corner;
-
-
- if ( ax < 0 )
- ax = -ax;
- if ( ay < 0 )
- ay = -ay;
- d_in = ax + ay;
-
- ax = out_x;
- if ( ax < 0 )
- ax = -ax;
- ay = out_y;
- if ( ay < 0 )
- ay = -ay;
- d_out = ax + ay;
-
- ax = out_x + in_x;
- if ( ax < 0 )
- ax = -ax;
- ay = out_y + in_y;
- if ( ay < 0 )
- ay = -ay;
- d_corner = ax + ay;
-
- return ( d_in + d_out - d_corner ) < ( d_corner >> 4 );
+ FT_Pos ax = in_x + out_x;
+ FT_Pos ay = in_y + out_y;
+
+ FT_Pos d_in, d_out, d_hypot;
+
+
+ /* The idea of this function is to compare the length of the */
+ /* hypotenuse with the `in' and `out' length. The `corner' */
+ /* represented by `in' and `out' is flat if the hypotenuse's */
+ /* length isn't too large. */
+ /* */
+ /* This approach has the advantage that the angle between */
+ /* `in' and `out' is not checked. In case one of the two */
+ /* vectors is `dominant', this is, much larger than the */
+ /* other vector, we thus always have a flat corner. */
+ /* */
+ /* hypotenuse */
+ /* x---------------------------x */
+ /* \ / */
+ /* \ / */
+ /* in \ / out */
+ /* \ / */
+ /* o */
+ /* Point */
+
+ d_in = FT_HYPOT( in_x, in_y );
+ d_out = FT_HYPOT( out_x, out_y );
+ d_hypot = FT_HYPOT( ax, ay );
+
+ /* now do a simple length comparison: */
+ /* */
+ /* d_in + d_out < 17/16 d_hypot */
+
+ return ( d_in + d_out - d_hypot ) < ( d_hypot >> 4 );
}
diff --git a/src/3rdparty/freetype/src/base/ftcid.c b/src/3rdparty/freetype/src/base/ftcid.c
index 733aae1475..741879d922 100644
--- a/src/3rdparty/freetype/src/base/ftcid.c
+++ b/src/3rdparty/freetype/src/base/ftcid.c
@@ -4,7 +4,7 @@
/* */
/* FreeType API for accessing CID font information. */
/* */
-/* Copyright 2007, 2009 by Derek Clegg, Michael Toftdal. */
+/* Copyright 2007, 2009, 2013 by Derek Clegg, Michael Toftdal. */
/* */
/* This file is part of the FreeType project, and may only be used, */
/* modified, and distributed under the terms of the FreeType project */
@@ -35,7 +35,7 @@
FT_Int s = 0;
- error = FT_Err_Invalid_Argument;
+ error = FT_ERR( Invalid_Argument );
if ( face )
{
@@ -65,7 +65,7 @@
FT_Get_CID_Is_Internally_CID_Keyed( FT_Face face,
FT_Bool *is_cid )
{
- FT_Error error = FT_Err_Invalid_Argument;
+ FT_Error error = FT_ERR( Invalid_Argument );
FT_Bool ic = 0;
@@ -92,7 +92,7 @@
FT_UInt glyph_index,
FT_UInt *cid )
{
- FT_Error error = FT_Err_Invalid_Argument;
+ FT_Error error = FT_ERR( Invalid_Argument );
FT_UInt c = 0;
diff --git a/src/3rdparty/freetype/src/base/ftdbgmem.c b/src/3rdparty/freetype/src/base/ftdbgmem.c
index 160269d192..6fb86fe77d 100644
--- a/src/3rdparty/freetype/src/base/ftdbgmem.c
+++ b/src/3rdparty/freetype/src/base/ftdbgmem.c
@@ -4,7 +4,7 @@
/* */
/* Memory debugger (body). */
/* */
-/* Copyright 2001, 2002, 2003, 2004, 2005, 2006, 2009 by */
+/* Copyright 2001-2006, 2009, 2013 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -47,7 +47,7 @@
typedef struct FT_MemTableRec_* FT_MemTable;
-#define FT_MEM_VAL( addr ) ((FT_ULong)(FT_Pointer)( addr ))
+#define FT_MEM_VAL( addr ) ((FT_PtrDist)(FT_Pointer)( addr ))
/*
* This structure holds statistics for a single allocation/release
@@ -275,7 +275,7 @@
for ( i = 0; i < table->size; i++ )
{
FT_MemNode node, next, *pnode;
- FT_ULong hash;
+ FT_PtrDist hash;
node = table->buckets[i];
@@ -344,85 +344,80 @@
ft_mem_table_destroy( FT_MemTable table )
{
FT_ULong i;
+ FT_Long leak_count = 0;
+ FT_ULong leaks = 0;
FT_DumpMemory( table->memory );
- if ( table )
+ /* remove all blocks from the table, revealing leaked ones */
+ for ( i = 0; i < table->size; i++ )
{
- FT_Long leak_count = 0;
- FT_ULong leaks = 0;
+ FT_MemNode *pnode = table->buckets + i, next, node = *pnode;
- /* remove all blocks from the table, revealing leaked ones */
- for ( i = 0; i < table->size; i++ )
+ while ( node )
{
- FT_MemNode *pnode = table->buckets + i, next, node = *pnode;
+ next = node->link;
+ node->link = 0;
-
- while ( node )
+ if ( node->size > 0 )
{
- next = node->link;
- node->link = 0;
-
- if ( node->size > 0 )
- {
- printf(
- "leaked memory block at address %p, size %8ld in (%s:%ld)\n",
- node->address, node->size,
- FT_FILENAME( node->source->file_name ),
- node->source->line_no );
+ printf(
+ "leaked memory block at address %p, size %8ld in (%s:%ld)\n",
+ node->address, node->size,
+ FT_FILENAME( node->source->file_name ),
+ node->source->line_no );
- leak_count++;
- leaks += node->size;
+ leak_count++;
+ leaks += node->size;
- ft_mem_table_free( table, node->address );
- }
+ ft_mem_table_free( table, node->address );
+ }
- node->address = NULL;
- node->size = 0;
+ node->address = NULL;
+ node->size = 0;
- ft_mem_table_free( table, node );
- node = next;
- }
- table->buckets[i] = 0;
+ ft_mem_table_free( table, node );
+ node = next;
}
+ table->buckets[i] = 0;
+ }
- ft_mem_table_free( table, table->buckets );
- table->buckets = NULL;
-
- table->size = 0;
- table->nodes = 0;
+ ft_mem_table_free( table, table->buckets );
+ table->buckets = NULL;
- /* remove all sources */
- for ( i = 0; i < FT_MEM_SOURCE_BUCKETS; i++ )
- {
- FT_MemSource source, next;
+ table->size = 0;
+ table->nodes = 0;
+ /* remove all sources */
+ for ( i = 0; i < FT_MEM_SOURCE_BUCKETS; i++ )
+ {
+ FT_MemSource source, next;
- for ( source = table->sources[i]; source != NULL; source = next )
- {
- next = source->link;
- ft_mem_table_free( table, source );
- }
- table->sources[i] = NULL;
+ for ( source = table->sources[i]; source != NULL; source = next )
+ {
+ next = source->link;
+ ft_mem_table_free( table, source );
}
- printf(
- "FreeType: total memory allocations = %ld\n", table->alloc_total );
- printf(
- "FreeType: maximum memory footprint = %ld\n", table->alloc_max );
+ table->sources[i] = NULL;
+ }
- ft_mem_table_free( table, table );
+ printf( "FreeType: total memory allocations = %ld\n",
+ table->alloc_total );
+ printf( "FreeType: maximum memory footprint = %ld\n",
+ table->alloc_max );
- if ( leak_count > 0 )
- ft_mem_debug_panic(
- "FreeType: %ld bytes of memory leaked in %ld blocks\n",
- leaks, leak_count );
+ ft_mem_table_free( table, table );
- printf( "FreeType: no memory leaks detected\n" );
- }
+ if ( leak_count > 0 )
+ ft_mem_debug_panic(
+ "FreeType: %ld bytes of memory leaked in %ld blocks\n",
+ leaks, leak_count );
+
+ printf( "FreeType: no memory leaks detected\n" );
}
@@ -430,7 +425,7 @@
ft_mem_table_get_nodep( FT_MemTable table,
FT_Byte* address )
{
- FT_ULong hash;
+ FT_PtrDist hash;
FT_MemNode *pnode, node;
diff --git a/src/3rdparty/freetype/src/base/ftdebug.c b/src/3rdparty/freetype/src/base/ftdebug.c
index 2adbeabeb2..39ac6add05 100644
--- a/src/3rdparty/freetype/src/base/ftdebug.c
+++ b/src/3rdparty/freetype/src/base/ftdebug.c
@@ -4,7 +4,7 @@
/* */
/* Debugging and logging component (body). */
/* */
-/* Copyright 1996-2001, 2002, 2004, 2008 by */
+/* Copyright 1996-2001, 2002, 2004, 2008, 2013 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -51,7 +51,8 @@
/* documentation is in ftdebug.h */
FT_BASE_DEF( void )
- FT_Message( const char* fmt, ... )
+ FT_Message( const char* fmt,
+ ... )
{
va_list ap;
@@ -65,7 +66,8 @@
/* documentation is in ftdebug.h */
FT_BASE_DEF( void )
- FT_Panic( const char* fmt, ... )
+ FT_Panic( const char* fmt,
+ ... )
{
va_list ap;
@@ -77,6 +79,21 @@
exit( EXIT_FAILURE );
}
+
+ /* documentation is in ftdebug.h */
+
+ FT_BASE_DEF( int )
+ FT_Throw( FT_Error error,
+ int line,
+ const char* file )
+ {
+ FT_UNUSED( error );
+ FT_UNUSED( line );
+ FT_UNUSED( file );
+
+ return 0;
+ }
+
#endif /* FT_DEBUG_LEVEL_ERROR */
@@ -135,7 +152,7 @@
/* the memory and stream components which are set to 7 and 5, */
/* respectively. */
/* */
- /* See the file <include/freetype/internal/fttrace.h> for details of the */
+ /* See the file <include/internal/fttrace.h> for details of the */
/* available toggle names. */
/* */
/* The level must be between 0 and 7; 0 means quiet (except for serious */
@@ -164,6 +181,9 @@
while ( *p && *p != ':' )
p++;
+ if ( !*p )
+ break;
+
if ( *p == ':' && p > q )
{
FT_Int n, i, len = (FT_Int)( p - q );
@@ -192,7 +212,7 @@
p++;
if ( *p )
{
- level = *p++ - '0';
+ level = *p - '0';
if ( level < 0 || level > 7 )
level = -1;
}
diff --git a/src/3rdparty/freetype/src/base/ftfstype.c b/src/3rdparty/freetype/src/base/ftfstype.c
index d0ef7b7c1b..6b49ef8371 100644
--- a/src/3rdparty/freetype/src/base/ftfstype.c
+++ b/src/3rdparty/freetype/src/base/ftfstype.c
@@ -4,7 +4,7 @@
/* */
/* FreeType utility file to access FSType data (body). */
/* */
-/* Copyright 2008, 2009 by */
+/* Copyright 2008, 2009, 2014 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -51,7 +51,7 @@
/* look at FSType before fsType for Type42 */
- if ( ( os2 = (TT_OS2*)FT_Get_Sfnt_Table( face, ft_sfnt_os2 ) ) != NULL &&
+ if ( ( os2 = (TT_OS2*)FT_Get_Sfnt_Table( face, FT_SFNT_OS2 ) ) != NULL &&
os2->version != 0xFFFFU )
return os2->fsType;
diff --git a/src/3rdparty/freetype/src/base/ftgloadr.c b/src/3rdparty/freetype/src/base/ftgloadr.c
index ac0010ddd8..3cc5c7a805 100644
--- a/src/3rdparty/freetype/src/base/ftgloadr.c
+++ b/src/3rdparty/freetype/src/base/ftgloadr.c
@@ -4,7 +4,7 @@
/* */
/* The FreeType glyph loader (body). */