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authorVictoria Lease <violets@google.com>2013-06-10 13:55:54 -0700
committerVictoria Lease <violets@google.com>2013-06-10 16:14:43 -0700
commit727dee178a392d20eb050d0c446f2fcc29058fa1 (patch)
treec3764963cd9267a20d27a3267af298e172529216 /src
parent8afe960626dbf326354b836fd4d63e05b6974195 (diff)
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Update freetype to 5e094c6fb2ddd6e8901a5679e2cbb8fa476a38ee
Integrated patches from freetype2 git repository, up to hashval 5e094c6fb2ddd6e8901a5679e2cbb8fa476a38ee, which is post-2.4.12. Most recent commit message from freetype git: [truetype] Improve handling of broken sbit advance widths. Noteworthy patches included: [cff] Add a new Type 2 interpreter and hinter. Add support for color embedded bitmaps (eg. color emoji). Change-Id: Ia8b6a67bc18f841b24f44edf80f81f663185b598
Diffstat (limited to 'src')
-rw-r--r--src/autofit/afangles.c65
-rw-r--r--src/autofit/afcjk.c38
-rw-r--r--src/autofit/afcjk.h11
-rw-r--r--src/autofit/afdummy.c9
-rw-r--r--src/autofit/afglobal.c95
-rw-r--r--src/autofit/afglobal.h46
-rw-r--r--src/autofit/afhints.c222
-rw-r--r--src/autofit/afhints.h20
-rw-r--r--src/autofit/afindic.c8
-rw-r--r--src/autofit/afindic.h4
-rw-r--r--src/autofit/aflatin.c371
-rw-r--r--src/autofit/aflatin.h19
-rw-r--r--src/autofit/aflatin2.c180
-rw-r--r--src/autofit/aflatin2.h4
-rw-r--r--src/autofit/afloader.c53
-rw-r--r--src/autofit/afloader.h30
-rw-r--r--src/autofit/afmodule.c219
-rw-r--r--src/autofit/afmodule.h21
-rw-r--r--src/autofit/afpic.c51
-rw-r--r--src/autofit/afpic.h48
-rw-r--r--src/autofit/aftypes.h38
-rw-r--r--src/base/basepic.c47
-rw-r--r--src/base/basepic.h45
-rw-r--r--src/base/ftadvanc.c20
-rw-r--r--src/base/ftbbox.c251
-rw-r--r--src/base/ftbitmap.c113
-rw-r--r--src/base/ftcalc.c110
-rw-r--r--src/base/ftdbgmem.c105
-rw-r--r--src/base/ftdebug.c28
-rw-r--r--src/base/ftgloadr.c9
-rw-r--r--src/base/ftglyph.c30
-rw-r--r--src/base/ftinit.c8
-rw-r--r--src/base/ftlcdfil.c14
-rw-r--r--src/base/ftmm.c20
-rw-r--r--src/base/ftobjs.c493
-rw-r--r--src/base/ftoutln.c298
-rw-r--r--src/base/ftpic.c3
-rw-r--r--src/base/ftrfork.c44
-rw-r--r--src/base/ftsnames.c2
-rw-r--r--src/base/ftstream.c55
-rw-r--r--src/base/ftstroke.c25
-rw-r--r--src/base/ftsynth.c25
-rw-r--r--src/base/ftsystem.c8
-rw-r--r--src/base/fttrigon.c286
-rw-r--r--src/base/fttype1.c4
-rw-r--r--src/base/ftutil.c79
-rw-r--r--src/base/ftwinfnt.c2
-rw-r--r--src/base/md5.c295
-rw-r--r--src/base/md5.h45
-rw-r--r--src/cache/ftcbasic.c275
-rw-r--r--src/cache/ftccache.c11
-rw-r--r--src/cache/ftccache.h13
-rw-r--r--src/cache/ftccback.h5
-rw-r--r--src/cache/ftccmap.c111
-rw-r--r--src/cache/ftcmanag.h6
-rw-r--r--src/cache/ftcsbits.c10
-rw-r--r--src/cff/cf2arrst.c241
-rw-r--r--src/cff/cf2arrst.h100
-rw-r--r--src/cff/cf2blues.c578
-rw-r--r--src/cff/cf2blues.h185
-rw-r--r--src/cff/cf2error.c52
-rw-r--r--src/cff/cf2error.h119
-rw-r--r--src/cff/cf2fixed.h95
-rw-r--r--src/cff/cf2font.c401
-rw-r--r--src/cff/cf2font.h114
-rw-r--r--src/cff/cf2ft.c639
-rw-r--r--src/cff/cf2ft.h147
-rw-r--r--src/cff/cf2glue.h144
-rw-r--r--src/cff/cf2hints.c1733
-rw-r--r--src/cff/cf2hints.h287
-rw-r--r--src/cff/cf2intrp.c1538
-rw-r--r--src/cff/cf2intrp.h83
-rw-r--r--src/cff/cf2read.c112
-rw-r--r--src/cff/cf2read.h68
-rw-r--r--src/cff/cf2stack.c205
-rw-r--r--src/cff/cf2stack.h106
-rw-r--r--src/cff/cf2types.h78
-rw-r--r--src/cff/cff.c13
-rw-r--r--src/cff/cffcmap.c6
-rw-r--r--src/cff/cffdrivr.c180
-rw-r--r--src/cff/cffgload.c223
-rw-r--r--src/cff/cffgload.h41
-rw-r--r--src/cff/cffload.c92
-rw-r--r--src/cff/cffobjs.c75
-rw-r--r--src/cff/cffobjs.h12
-rw-r--r--src/cff/cffparse.c157
-rw-r--r--src/cff/cffpic.c72
-rw-r--r--src/cff/cffpic.h81
-rw-r--r--src/cff/cfftypes.h5
-rw-r--r--src/pfr/pfrload.c28
-rw-r--r--src/psaux/afmparse.c45
-rw-r--r--src/psaux/psconv.c208
-rw-r--r--src/psaux/psconv.h10
-rw-r--r--src/psaux/psobjs.c141
-rw-r--r--src/psaux/t1decode.c70
-rw-r--r--src/pshinter/pshalgo.c17
-rw-r--r--src/pshinter/pshalgo.h11
-rw-r--r--src/pshinter/pshglob.c51
-rw-r--r--src/pshinter/pshmod.c17
-rw-r--r--src/pshinter/pshpic.c17
-rw-r--r--src/pshinter/pshpic.h16
-rw-r--r--src/pshinter/pshrec.c53
-rw-r--r--src/psnames/psmodule.c58
-rw-r--r--src/psnames/pspic.c19
-rw-r--r--src/psnames/pspic.h23
-rw-r--r--src/raster/ftmisc.h21
-rw-r--r--src/raster/ftraster.c122
-rw-r--r--src/raster/ftrend1.c21
-rw-r--r--src/raster/rastpic.c32
-rw-r--r--src/raster/rastpic.h18
-rw-r--r--src/sfnt/pngshim.c336
-rw-r--r--src/sfnt/pngshim.h48
-rw-r--r--src/sfnt/sfdriver.c318
-rw-r--r--src/sfnt/sferrors.h4
-rw-r--r--src/sfnt/sfnt.c3
-rw-r--r--src/sfnt/sfntpic.c37
-rw-r--r--src/sfnt/sfntpic.h81
-rw-r--r--src/sfnt/sfobjs.c128
-rw-r--r--src/sfnt/ttbdf.c16
-rw-r--r--src/sfnt/ttcmap.c389
-rw-r--r--src/sfnt/ttcmap.h99
-rw-r--r--src/sfnt/ttcmapc.h19
-rw-r--r--src/sfnt/ttkern.c2
-rw-r--r--src/sfnt/ttload.c60
-rw-r--r--src/sfnt/ttmtx.c195
-rw-r--r--src/sfnt/ttpost.c22
-rw-r--r--src/sfnt/ttsbit.c2017
-rw-r--r--src/sfnt/ttsbit.h18
-rw-r--r--src/sfnt/ttsbit0.c1011
-rw-r--r--src/smooth/ftgrays.c102
-rw-r--r--src/smooth/ftsmooth.c80
-rw-r--r--src/smooth/ftspic.c37
-rw-r--r--src/smooth/ftspic.h17
-rw-r--r--src/truetype/truetype.c3
-rw-r--r--src/truetype/ttdriver.c132
-rw-r--r--src/truetype/ttgload.c367
-rw-r--r--src/truetype/ttgxvar.c105
-rw-r--r--src/truetype/ttinterp.c1563
-rw-r--r--src/truetype/ttinterp.h79
-rw-r--r--src/truetype/ttobjs.c87
-rw-r--r--src/truetype/ttobjs.h25
-rw-r--r--src/truetype/ttpic.c21
-rw-r--r--src/truetype/ttpic.h39
-rw-r--r--src/truetype/ttpload.c26
-rw-r--r--src/truetype/ttsubpix.c1011
-rw-r--r--src/truetype/ttsubpix.h110
146 files changed, 15703 insertions, 6331 deletions
diff --git a/src/autofit/afangles.c b/src/autofit/afangles.c
index 790af17..b44a5ba 100644
--- a/src/autofit/afangles.c
+++ b/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 2003-2006, 2011 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, */
@@ -255,7 +255,7 @@
{
for ( j = i; j > 0; j-- )
{
- if ( table[j] > table[j - 1] )
+ if ( table[j] >= table[j - 1] )
break;
swap = table[j];
@@ -267,18 +267,26 @@
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 +294,51 @@
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/autofit/afcjk.c b/src/autofit/afcjk.c
index 8e407c8..f69a528 100644
--- a/src/autofit/afcjk.c
+++ b/src/autofit/afcjk.c
@@ -4,7 +4,7 @@
/* */
/* Auto-fitter hinting routines for CJK script (body). */
/* */
-/* Copyright 2006-2012 by */
+/* Copyright 2006-2013 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -67,8 +67,7 @@
FT_LOCAL_DEF( void )
af_cjk_metrics_init_widths( AF_CJKMetrics metrics,
- FT_Face face,
- FT_ULong charcode )
+ FT_Face face )
{
/* scan the array of segments in each direction */
AF_GlyphHintsRec hints[1];
@@ -87,7 +86,8 @@
AF_Scaler scaler = &dummy->root.scaler;
- glyph_index = FT_Get_Char_Index( face, charcode );
+ glyph_index = FT_Get_Char_Index( face,
+ metrics->root.clazz->standard_char );
if ( glyph_index == 0 )
goto Exit;
@@ -150,7 +150,10 @@
}
}
- 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;
}
@@ -478,7 +481,8 @@
FT_Bool under_ref = FT_BOOL( shoot < ref );
- if ( (AF_CJK_BLUE_TOP == bb || AF_CJK_BLUE_RIGHT == bb) ^ under_ref )
+ if ( ( AF_CJK_BLUE_TOP == bb ||
+ AF_CJK_BLUE_RIGHT == bb ) ^ under_ref )
*blue_shoot = *blue_ref = ( shoot + ref ) / 2;
}
@@ -556,14 +560,14 @@
face->charmap = NULL;
else
{
- af_cjk_metrics_init_widths( metrics, face, 0x7530 );
+ af_cjk_metrics_init_widths( metrics, face );
af_cjk_metrics_init_blues( metrics, face, af_cjk_hani_blue_chars );
af_cjk_metrics_check_digits( metrics, face );
}
FT_Set_Charmap( face, oldmap );
- return AF_Err_Ok;
+ return FT_Err_Ok;
}
@@ -699,7 +703,7 @@
{
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;
@@ -708,7 +712,7 @@
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;
@@ -718,7 +722,7 @@
}
}
- return AF_Err_Ok;
+ return FT_Err_Ok;
}
@@ -892,7 +896,7 @@
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_CJKAxis laxis = &((AF_CJKMetrics)hints->metrics)->axis[dim];
@@ -962,14 +966,15 @@
/* 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 );
@@ -2190,6 +2195,7 @@
static const AF_Script_UniRangeRec af_cjk_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 */
@@ -2228,6 +2234,7 @@
AF_DEFINE_SCRIPT_CLASS( af_cjk_script_class,
AF_SCRIPT_CJK,
af_cjk_uniranges,
+ 0x7530, /* 田 */
sizeof ( AF_CJKMetricsRec ),
@@ -2250,6 +2257,7 @@
AF_DEFINE_SCRIPT_CLASS( af_cjk_script_class,
AF_SCRIPT_CJK,
af_cjk_uniranges,
+ 0,
sizeof ( AF_CJKMetricsRec ),
diff --git a/src/autofit/afcjk.h b/src/autofit/afcjk.h
index 8416c0d..ab816f2 100644
--- a/src/autofit/afcjk.h
+++ b/src/autofit/afcjk.h
@@ -4,7 +4,7 @@
/* */
/* Auto-fitter hinting routines for CJK script (specification). */
/* */
-/* Copyright 2006, 2007, 2011 by */
+/* Copyright 2006, 2007, 2011, 2012 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -28,7 +28,7 @@ FT_BEGIN_HEADER
/* the CJK-specific script class */
- AF_DECLARE_SCRIPT_CLASS(af_cjk_script_class)
+ AF_DECLARE_SCRIPT_CLASS( af_cjk_script_class )
/* CJK (global) metrics management */
@@ -103,6 +103,7 @@ FT_BEGIN_HEADER
} AF_CJKMetricsRec, *AF_CJKMetrics;
+#ifdef AF_CONFIG_OPTION_CJK
FT_LOCAL( FT_Error )
af_cjk_metrics_init( AF_CJKMetrics metrics,
FT_Face face );
@@ -120,15 +121,15 @@ FT_BEGIN_HEADER
FT_Outline* outline,
AF_CJKMetrics metrics );
- /* Shared. called from afindic.c */
+ /* 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,
- FT_ULong charcode );
+ FT_Face face );
+#endif /* AF_CONFIG_OPTION_CJK */
/* */
diff --git a/src/autofit/afdummy.c b/src/autofit/afdummy.c
index 4bf278c..2294455 100644
--- a/src/autofit/afdummy.c
+++ b/src/autofit/afdummy.c
@@ -5,7 +5,7 @@
/* Auto-fitter dummy routines to be used if no hinting should be */
/* performed (body). */
/* */
-/* Copyright 2003-2005, 2011 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, */
@@ -28,7 +28,7 @@
{
af_glyph_hints_rescale( hints,
metrics );
- return AF_Err_Ok;
+ return FT_Err_Ok;
}
@@ -39,13 +39,14 @@
FT_UNUSED( hints );
FT_UNUSED( outline );
- return AF_Err_Ok;
+ return FT_Err_Ok;
}
AF_DEFINE_SCRIPT_CLASS( af_dummy_script_class,
- AF_SCRIPT_NONE,
+ AF_SCRIPT_DUMMY,
NULL,
+ 0,
sizeof ( AF_ScriptMetricsRec ),
diff --git a/src/autofit/afglobal.c b/src/autofit/afglobal.c
index 3e0c02d..3e41465 100644
--- a/src/autofit/afglobal.c
+++ b/src/autofit/afglobal.c
@@ -4,7 +4,7 @@
/* */
/* Auto-fitter routines to compute global hinting values (body). */
/* */
-/* Copyright 2003-2011 by */
+/* Copyright 2003-2013 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -49,55 +49,33 @@
#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
-
-
- /*
- * Note that glyph_scripts[] is used to map each glyph into
- * an index into the `af_script_classes' array.
- *
- */
- typedef struct AF_FaceGlobalsRec_
- {
- FT_Face face;
- FT_Long glyph_count; /* same as face->num_glyphs */
- FT_Byte* glyph_scripts;
-
- AF_ScriptMetrics metrics[AF_SCRIPT_MAX];
-
- } AF_FaceGlobalsRec;
-
/* Compute the script index of each glyph within a given face. */
static FT_Error
af_face_globals_compute_script_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_UInt ss;
+ FT_UInt i;
- /* the value AF_SCRIPT_LIST_NONE means `uncovered glyph' */
+ /* the value AF_SCRIPT_NONE means `uncovered glyph' */
FT_MEM_SET( globals->glyph_scripts,
- AF_SCRIPT_LIST_NONE,
+ AF_SCRIPT_NONE,
globals->glyph_count );
error = FT_Select_Charmap( face, FT_ENCODING_UNICODE );
if ( error )
{
/*
- * Ignore this error; we simply use the default script.
+ * Ignore this error; we simply use the fallback script.
* XXX: Shouldn't we rather disable hinting?
*/
- error = AF_Err_Ok;
+ error = FT_Err_Ok;
goto Exit;
}
@@ -112,7 +90,7 @@
continue;
/*
- * Scan all unicode points in the range and set the corresponding
+ * Scan all Unicode points in the range and set the corresponding
* glyph script index.
*/
for ( range = clazz->script_uni_ranges; range->first != 0; range++ )
@@ -125,7 +103,7 @@
if ( gindex != 0 &&
gindex < (FT_ULong)globals->glyph_count &&
- gscripts[gindex] == AF_SCRIPT_LIST_NONE )
+ gscripts[gindex] == AF_SCRIPT_NONE )
gscripts[gindex] = (FT_Byte)ss;
for (;;)
@@ -136,7 +114,7 @@
break;
if ( gindex < (FT_ULong)globals->glyph_count &&
- gscripts[gindex] == AF_SCRIPT_LIST_NONE )
+ gscripts[gindex] == AF_SCRIPT_NONE )
gscripts[gindex] = (FT_Byte)ss;
}
}
@@ -154,19 +132,20 @@
Exit:
/*
- * By default, all uncovered glyphs are set to the latin script.
+ * By default, all uncovered glyphs are set to the fallback script.
* XXX: Shouldn't we disable hinting or do something similar?
*/
+ if ( globals->module->fallback_script != AF_SCRIPT_NONE )
{
FT_Long nn;
for ( nn = 0; nn < globals->glyph_count; nn++ )
{
- if ( ( gscripts[nn] & ~AF_DIGIT ) == AF_SCRIPT_LIST_NONE )
+ if ( ( gscripts[nn] & ~AF_DIGIT ) == AF_SCRIPT_NONE )
{
- gscripts[nn] &= ~AF_SCRIPT_LIST_NONE;
- gscripts[nn] |= AF_SCRIPT_LIST_DEFAULT;
+ gscripts[nn] &= ~AF_SCRIPT_NONE;
+ gscripts[nn] |= globals->module->fallback_script;
}
}
}
@@ -178,7 +157,8 @@
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;
@@ -187,21 +167,25 @@
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_scripts = (FT_Byte*)( globals + 1 );
+ globals->module = module;
+
+ error = af_face_globals_compute_script_coverage( globals );
+ if ( error )
+ {
+ af_face_globals_free( globals );
+ globals = NULL;
}
+ globals->increase_x_height = AF_PROP_INCREASE_X_HEIGHT_MAX;
+
+ Exit:
*aglobals = globals;
return error;
}
@@ -253,18 +237,18 @@
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;
+ 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;
+ gidx = globals->glyph_scripts[gindex] & AF_SCRIPT_NONE;
clazz = AF_SCRIPT_CLASSES_GET[gidx];
if ( script == 0 )
@@ -273,14 +257,15 @@
metrics = globals->metrics[clazz->script];
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 ) )
goto Exit;
- metrics->clazz = clazz;
+ metrics->clazz = clazz;
+ metrics->globals = globals;
if ( clazz->script_metrics_init )
{
diff --git a/src/autofit/afglobal.h b/src/autofit/afglobal.h
index cc6860b..2e24900 100644
--- a/src/autofit/afglobal.h
+++ b/src/autofit/afglobal.h
@@ -5,7 +5,7 @@
/* Auto-fitter routines to compute global hinting values */
/* (specification). */
/* */
-/* Copyright 2003-2005, 2007, 2009, 2011 by */
+/* Copyright 2003-2005, 2007, 2009, 2011-2012 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -22,11 +22,29 @@
#include "aftypes.h"
+#include "afmodule.h"
FT_BEGIN_HEADER
+ /*
+ * Default values and flags for both autofitter globals (found in
+ * AF_ModuleRec) and face globals (in AF_FaceGlobalsRec).
+ */
+
+ /* index of fallback script in `af_script_classes' */
+#define AF_SCRIPT_FALLBACK 2
+ /* a bit mask indicating an uncovered glyph */
+#define AF_SCRIPT_NONE 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
+
+
/************************************************************************/
/************************************************************************/
/***** *****/
@@ -37,15 +55,35 @@ FT_BEGIN_HEADER
/*
+ * Note that glyph_scripts[] is used to map each glyph into
+ * an index into the `af_script_classes' array.
+ *
+ */
+ typedef struct AF_FaceGlobalsRec_
+ {
+ FT_Face face;
+ FT_Long glyph_count; /* same as face->num_glyphs */
+ FT_Byte* glyph_scripts;
+
+ /* per-face auto-hinter properties */
+ FT_UInt increase_x_height;
+
+ AF_ScriptMetrics metrics[AF_SCRIPT_MAX];
+
+ AF_Module module; /* to access global properties */
+
+ } AF_FaceGlobalsRec;
+
+
+ /*
* model the global hints data for a given face, decomposed into
* script-specific items
*/
- typedef struct AF_FaceGlobalsRec_* AF_FaceGlobals;
-
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,
diff --git a/src/autofit/afhints.c b/src/autofit/afhints.c
index f51066f..e8defaa 100644
--- a/src/autofit/afhints.c
+++ b/src/autofit/afhints.c
@@ -4,7 +4,7 @@
/* */
/* Auto-fitter hinting routines (body). */
/* */
-/* Copyright 2003-2007, 2009-2011 by */
+/* Copyright 2003-2007, 2009-2013 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -19,6 +19,17 @@
#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. */
@@ -28,7 +39,7 @@
FT_Memory memory,
AF_Segment *asegment )
{
- FT_Error error = AF_Err_Ok;
+ FT_Error error = FT_Err_Ok;
AF_Segment segment = NULL;
@@ -41,7 +52,7 @@
if ( old_max >= big_max )
{
- error = AF_Err_Out_Of_Memory;
+ error = FT_THROW( Out_Of_Memory );
goto Exit;
}
@@ -70,9 +81,9 @@
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;
@@ -86,7 +97,7 @@
if ( old_max >= big_max )
{
- error = AF_Err_Out_Of_Memory;
+ error = FT_THROW( Out_Of_Memory );
goto Exit;
}
@@ -124,7 +135,7 @@
edge->dir = (FT_Char)dir;
Exit:
- *aedge = edge;
+ *anedge = edge;
return error;
}
@@ -175,29 +186,27 @@
AF_Point point;
- printf( "Table of points:\n" );
- printf( " [ index | xorg | yorg | xscale | yscale"
- " | xfit | yfit | flags ]\n" );
+ FT_TRACE7(( "Table of points:\n"
+ " [ index | xorg | yorg | xscale | yscale"
+ " | xfit | yfit | flags ]\n" ));
for ( point = points; point < limit; point++ )
- {
- printf( " [ %5d | %5d | %5d | %6.2f | %6.2f"
- " | %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" );
+ FT_TRACE7(( " [ %5d | %5d | %5d | %6.2f | %6.2f"
+ " | %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' : ' '));
+ FT_TRACE7(( "\n" ));
}
#ifdef __cplusplus
}
@@ -226,7 +235,7 @@
if ( pos == 0 )
return "normal";
- temp[pos] = 0;
+ temp[pos] = '\0';
return temp;
}
@@ -246,30 +255,41 @@
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" );
+ FT_TRACE7(( "Table of %s segments:\n",
+ dimension == AF_DIMENSION_HORZ ? "vertical"
+ : "horizontal" ));
+ if ( axis->num_segments )
+ FT_TRACE7(( " [ index | pos | dir | from"
+ " | to | link | serif | edge"
+ " | height | extra | flags ]\n" ));
+ else
+ FT_TRACE7(( " (none)\n" ));
for ( seg = segments; seg < limit; seg++ )
- {
- printf ( " [ %5d | %5.2g | %5s | %4d | %5d | %6d | %5d | %11s ]\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( (AF_Edge_Flags)seg->flags ) );
- }
- printf( "\n" );
+ FT_TRACE7(( " [ %5d | %5.2g | %5s | %4d"
+ " | %4d | %4d | %5d | %4d"
+ " | %6d | %5d | %11s ]\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->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 ) ));
+ FT_TRACE7(( "\n" ));
}
}
#ifdef __cplusplus
@@ -296,7 +316,7 @@
axis = &hints->axis[dim];
*num_segments = axis->num_segments;
- return AF_Err_Ok;
+ return FT_Err_Ok;
}
#ifdef __cplusplus
}
@@ -320,20 +340,20 @@
if ( !offset )
- return AF_Err_Invalid_Argument;
+ 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 AF_Err_Invalid_Argument;
+ return FT_THROW( Invalid_Argument );
seg = &axis->segments[idx];
- *offset = (dim == AF_DIMENSION_HORZ) ? seg->first->ox
- : seg->first->oy;
+ *offset = ( dim == AF_DIMENSION_HORZ ) ? seg->first->ox
+ : seg->first->oy;
- return AF_Err_Ok;
+ return FT_Err_Ok;
}
#ifdef __cplusplus
}
@@ -363,26 +383,28 @@
* note: AF_DIMENSION_HORZ corresponds to _vertical_ edges
* 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" );
+ FT_TRACE7(( "Table of %s edges:\n",
+ dimension == AF_DIMENSION_HORZ ? "vertical"
+ : "horizontal" ));
+ if ( axis->num_edges )
+ FT_TRACE7(( " [ index | pos | dir | link"
+ " | serif | blue | opos | pos | flags ]\n" ));
+ else
+ FT_TRACE7(( " (none)\n" ));
for ( edge = edges; edge < limit; edge++ )
- {
- printf ( " [ %5d | %5.2g | %5s | %4d |"
- " %5d | %c | %5.2f | %5.2f | %11s ]\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( (AF_Edge_Flags)edge->flags ) );
- }
- printf( "\n" );
+ FT_TRACE7(( " [ %5d | %5.2g | %5s | %4d"
+ " | %5d | %c | %5.2f | %5.2f | %11s ]\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( (AF_Edge_Flags)edge->flags ) ));
+ FT_TRACE7(( "\n" ));
}
}
#ifdef __cplusplus
@@ -494,8 +516,8 @@
}
}
- /* return no direction if arm lengths differ too much */
- /* (value 14 is heuristic) */
+ /* 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;
@@ -516,40 +538,40 @@
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;
}
@@ -571,7 +593,7 @@
af_glyph_hints_reload( AF_GlyphHints hints,
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;
@@ -745,7 +767,7 @@
/* check for weak points */
- if ( point->flags & ( AF_FLAG_CONIC | AF_FLAG_CUBIC ) )
+ if ( point->flags & AF_FLAG_CONTROL )
{
Is_Weak_Point:
point->flags |= AF_FLAG_WEAK_INTERPOLATION;
diff --git a/src/autofit/afhints.h b/src/autofit/afhints.h
index 1c52e0d..776b3c8 100644
--- a/src/autofit/afhints.h
+++ b/src/autofit/afhints.h
@@ -4,7 +4,7 @@
/* */
/* Auto-fitter hinting routines (specification). */
/* */
-/* Copyright 2003-2008, 2010-2011 by */
+/* Copyright 2003-2008, 2010-2012 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -254,7 +254,7 @@ 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 */
@@ -290,19 +290,19 @@ FT_BEGIN_HEADER
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; /* link edge */
- AF_Edge serif; /* primary edge for serifs */
- FT_Short num_linked; /* number of linked edges */
- FT_Int score; /* used during stem matching */
+ 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 */
AF_Segment first; /* first segment in edge */
AF_Segment last; /* last segment in edge */
diff --git a/src/autofit/afindic.c b/src/autofit/afindic.c
index 9c74838..8c24972 100644
--- a/src/autofit/afindic.c
+++ b/src/autofit/afindic.c
@@ -4,7 +4,7 @@
/* */
/* Auto-fitter hinting routines for Indic scripts (body). */
/* */
-/* Copyright 2007, 2011 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, */
@@ -46,7 +46,7 @@
face->charmap = NULL;
else
{
- af_cjk_metrics_init_widths( metrics, face, 0x7530 );
+ 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 );
@@ -56,7 +56,7 @@
FT_Set_Charmap( face, oldmap );
- return AF_Err_Ok;
+ return FT_Err_Ok;
}
@@ -116,6 +116,7 @@
AF_DEFINE_SCRIPT_CLASS( af_indic_script_class,
AF_SCRIPT_INDIC,
af_indic_uniranges,
+ 'o', /* XXX */
sizeof ( AF_CJKMetricsRec ),
@@ -138,6 +139,7 @@
AF_DEFINE_SCRIPT_CLASS( af_indic_script_class,
AF_SCRIPT_INDIC,
af_indic_uniranges,
+ 0,
sizeof ( AF_CJKMetricsRec ),
diff --git a/src/autofit/afindic.h b/src/autofit/afindic.h
index 662a982..c252cf2 100644
--- a/src/autofit/afindic.h
+++ b/src/autofit/afindic.h
@@ -4,7 +4,7 @@
/* */
/* Auto-fitter hinting routines for Indic scripts (specification). */
/* */
-/* Copyright 2007 by */
+/* Copyright 2007, 2012 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, */
@@ -27,7 +27,7 @@ FT_BEGIN_HEADER
/* the Indic-specific script class */
- AF_DECLARE_SCRIPT_CLASS(af_indic_script_class)
+ AF_DECLARE_SCRIPT_CLASS( af_indic_script_class )
/* */
diff --git a/src/autofit/aflatin.c b/src/autofit/aflatin.c
index 30145a2..ef0157a 100644
--- a/src/autofit/aflatin.c
+++ b/src/autofit/aflatin.c
@@ -4,7 +4,7 @@
/* */
/* Auto-fitter hinting routines for latin script (body). */
/* */
-/* Copyright 2003-2011 by */
+/* Copyright 2003-2013 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -20,6 +20,7 @@
#include FT_ADVANCES_H
#include FT_INTERNAL_DEBUG_H
+#include "afglobal.h"
#include "aflatin.h"
#include "aferrors.h"
@@ -53,30 +54,36 @@
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(( "standard widths computation\n"
+ "===========================\n\n" ));
+
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_UInt glyph_index;
+ int dim;
+ AF_LatinMetricsRec dummy[1];
+ AF_Scaler scaler = &dummy->root.scaler;
- glyph_index = FT_Get_Char_Index( face, charcode );
+ glyph_index = FT_Get_Char_Index( face,
+ metrics->root.clazz->standard_char );
if ( glyph_index == 0 )
goto Exit;
+ FT_TRACE5(( "standard character: 0x%X (glyph index %d)\n",
+ metrics->root.clazz->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;
@@ -138,7 +145,10 @@
}
}
- 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;
}
@@ -157,9 +167,28 @@
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 );
}
@@ -195,15 +224,15 @@
AF_LatinBlue blue;
FT_Error error;
AF_LatinAxis axis = &metrics->axis[AF_DIMENSION_VERT];
- FT_GlyphSlot glyph = face->glyph;
+ FT_Outline outline;
/* we compute the blues simply by loading each character from the */
/* `af_latin_blue_chars[blues]' string, then finding its top-most or */
/* bottom-most points (depending on `AF_IS_TOP_BLUE') */
- FT_TRACE5(( "blue zones computation\n" ));
- FT_TRACE5(( "------------------------------------------------\n" ));
+ FT_TRACE5(( "blue zones computation\n"
+ "======================\n\n" ));
for ( bb = 0; bb < AF_LATIN_BLUE_MAX; bb++ )
{
@@ -213,7 +242,7 @@
FT_Pos* blue_shoot;
- FT_TRACE5(( "blue %3d: ", bb ));
+ FT_TRACE5(( "blue zone %d:\n", bb ));
num_flats = 0;
num_rounds = 0;
@@ -222,28 +251,27 @@
{
FT_UInt glyph_index;
FT_Pos best_y; /* same as points.y */
- FT_Int best_point, best_first, best_last;
+ FT_Int best_point, best_contour_first, best_contour_last;
FT_Vector* points;
FT_Bool round = 0;
- FT_TRACE5(( "'%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 )
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 )
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;
@@ -251,15 +279,13 @@
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 */
@@ -288,11 +314,11 @@
if ( best_point != old_best_point )
{
- best_first = first;
- best_last = last;
+ best_contour_first = first;
+ best_contour_last = last;
}
}
- FT_TRACE5(( "%5d", best_y ));
+ FT_TRACE5(( " %c %ld", *p, best_y ));
}
/* now check whether the point belongs to a straight or round */
@@ -300,47 +326,86 @@
/* 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_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'... */
+ 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 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;
+
+ 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;
+
+ 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 );
+ /* (value 8 is heuristic) */
+ 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[prev] ) != FT_CURVE_TAG_ON ||
+ FT_CURVE_TAG( outline.tags[next] ) != FT_CURVE_TAG_ON );
- FT_TRACE5(( "%c ", round ? 'r' : 'f' ));
+ FT_TRACE5(( " (%s)\n", round ? "round" : "flat" ));
}
if ( round )
@@ -349,15 +414,13 @@
flats[num_flats++] = best_y;
}
- FT_TRACE5(( "\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
*/
- FT_TRACE5(( "empty\n" ));
+ FT_TRACE5(( " empty\n" ));
continue;
}
@@ -400,8 +463,13 @@
if ( AF_LATIN_IS_TOP_BLUE( bb ) ^ over_ref )
+ {
*blue_ref =
*blue_shoot = ( shoot + ref ) / 2;
+
+ FT_TRACE5(( " [overshoot smaller than reference,"
+ " taking mean value]\n" ));
+ }
}
blue->flags = 0;
@@ -416,7 +484,9 @@
if ( bb == AF_LATIN_BLUE_SMALL_TOP )
blue->flags |= AF_LATIN_BLUE_ADJUSTMENT;
- FT_TRACE5(( "-- ref = %ld, shoot = %ld\n", *blue_ref, *blue_shoot ));
+ FT_TRACE5(( " -> reference = %ld\n"
+ " overshoot = %ld\n",
+ *blue_ref, *blue_shoot ));
}
FT_TRACE5(( "\n" ));
@@ -478,41 +548,20 @@
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;
}
@@ -569,9 +618,26 @@
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 )
{
@@ -677,7 +743,7 @@
if ( delta2 < 32 )
delta2 = 0;
- else if ( delta < 48 )
+ else if ( delta2 < 48 )
delta2 = 32;
else
delta2 = 64;
@@ -705,6 +771,7 @@
{
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 );
@@ -728,7 +795,7 @@
{
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;
@@ -848,7 +915,7 @@
on_edge = 0;
segment = NULL;
- /* fallthrough */
+ /* fall through */
}
}
@@ -884,8 +951,8 @@
} /* 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;
@@ -1040,7 +1107,7 @@
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];
@@ -1169,17 +1236,17 @@
}
- /*********************************************************************/
- /* */
- /* Good, we will 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 */
- /* */
- /*********************************************************************/
+ /******************************************************************/
+ /* */
+ /* 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 */
@@ -1367,7 +1434,7 @@
/* for each horizontal edge search the blue zone which is closest */
for ( ; edge < edge_limit; edge++ )
{
- FT_Int bb;
+ FT_UInt bb;
AF_Width best_blue = NULL;
FT_Pos best_dist; /* initial threshold */
@@ -1380,7 +1447,7 @@
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;
@@ -1476,9 +1543,7 @@
#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;
@@ -1518,7 +1583,7 @@
hints->scaler_flags = scaler_flags;
hints->other_flags = other_flags;
- return AF_Err_Ok;
+ return FT_Err_Ok;
}
@@ -1722,7 +1787,7 @@
if ( delta < 0 )
delta = -delta;
- if (delta >= 16)
+ if ( delta >= 16 )
{
dist = org_dist;
if ( dist < 48 )
@@ -1762,7 +1827,7 @@
stem_edge->pos = base_edge->pos + fitted_width;
- FT_TRACE5(( " LINK: edge %d (opos=%.2f) linked to (%.2f),"
+ 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 ));
@@ -1808,9 +1873,13 @@
AF_Edge anchor = NULL;
FT_Int has_serifs = 0;
+#ifdef FT_DEBUG_LEVEL_TRACE
+ FT_UInt num_actions = 0;
+#endif
+
- FT_TRACE5(("%s edge hinting\n", dim == AF_DIMENSION_VERT ? "horizontal"
- : "vertical"));
+ FT_TRACE5(( "%s edge hinting\n",
+ dim == AF_DIMENSION_VERT ? "horizontal" : "vertical" ));
/* we begin by aligning all stems relative to the blue zone */
/* if needed -- that's only for horizontal edges */
@@ -1844,10 +1913,20 @@
if ( !edge1 )
continue;
- 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 ));
+#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;
@@ -1856,6 +1935,10 @@
{
af_latin_align_linked_edge( hints, dim, edge1, edge2 );
edge2->flags |= AF_EDGE_DONE;
+
+#ifdef FT_DEBUG_LEVEL_TRACE
+ num_actions++;
+#endif
}
if ( !anchor )
@@ -1890,6 +1973,10 @@
af_latin_align_linked_edge( hints, dim, edge2, edge );
edge->flags |= AF_EDGE_DONE;
+
+#ifdef FT_DEBUG_LEVEL_TRACE
+ num_actions++;
+#endif
continue;
}
@@ -1947,16 +2034,20 @@
else
edge->pos = FT_PIX_ROUND( edge->opos );
+ anchor = edge;
+ edge->flags |= AF_EDGE_DONE;
+
FT_TRACE5(( " ANCHOR: edge %d (opos=%.2f) and %d (opos=%.2f)"
- " snapped to (%.2f) (%.2f)\n",
+ " 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 ));
- anchor = edge;
-
- edge->flags |= AF_EDGE_DONE;
af_latin_align_linked_edge( hints, dim, edge, edge2 );
+
+#ifdef FT_DEBUG_LEVEL_TRACE
+ num_actions += 2;
+#endif
}
else
{
@@ -1989,7 +2080,7 @@
cur_pos1 = FT_PIX_ROUND( org_center );
- if (cur_len <= 64 )
+ if ( cur_len <= 64 )
{
u_off = 32;
d_off = 32;
@@ -2016,12 +2107,13 @@
edge->pos = cur_pos1 - cur_len / 2;
edge2->pos = cur_pos1 + cur_len / 2;
- FT_TRACE5(( " STEM: %d (opos=%.2f) to %d (opos=%.2f)"
- " snapped to (%.2f) and (%.2f)\n",
+ 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 );
@@ -2046,20 +2138,29 @@
edge->pos = ( delta1 < delta2 ) ? cur_pos1 : cur_pos2;
edge2->pos = edge->pos + cur_len;
- FT_TRACE5(( " STEM: %d (opos=%.2f) to %d (opos=%.2f)"
- " snapped to (%.2f) and (%.2f)\n",
+ 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 )
{
- FT_TRACE5(( " BOUND: %d (pos=%.2f) to (%.2f)\n",
+#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;
}
}
@@ -2154,7 +2255,7 @@
{
af_latin_align_serif_edge( hints, edge->serif, edge );
FT_TRACE5(( " SERIF: edge %d (opos=%.2f) serif to %d (opos=%.2f)"
- " aligned to (%.2f)\n",
+ " aligned to %.2f\n",
edge - edges, edge->opos / 64.0,
edge->serif - edges, edge->serif->opos / 64.0,
edge->pos / 64.0 ));
@@ -2164,7 +2265,7 @@
edge->pos = FT_PIX_ROUND( edge->opos );
anchor = edge;
FT_TRACE5(( " SERIF_ANCHOR: edge %d (opos=%.2f)"
- " snapped to (%.2f)\n",
+ " snapped to %.2f\n",
edge-edges, edge->opos / 64.0, edge->pos / 64.0 ));
}
else
@@ -2191,7 +2292,7 @@
after->pos - before->pos,
after->opos - before->opos );
- FT_TRACE5(( " SERIF_LINK1: edge %d (opos=%.2f) snapped to (%.2f)"
+ 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,
@@ -2201,26 +2302,49 @@
{
edge->pos = anchor->pos +
( ( edge->opos - anchor->opos + 16 ) & ~31 );
-
FT_TRACE5(( " SERIF_LINK2: edge %d (opos=%.2f)"
- " snapped to (%.2f)\n",
+ " 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
}
@@ -2333,10 +2457,12 @@
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( 0x2E00UL, 0x2E7FUL ), /* Supplemental Punctuation */
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( 0x1F100UL, 0x1F1FFUL ), /* Enclosed Alphanumeric Supplement */
AF_UNIRANGE_REC( 0UL, 0UL )
};
@@ -2344,6 +2470,7 @@
AF_DEFINE_SCRIPT_CLASS( af_latin_script_class,
AF_SCRIPT_LATIN,
af_latin_uniranges,
+ 'o',
sizeof ( AF_LatinMetricsRec ),
diff --git a/src/autofit/aflatin.h b/src/autofit/aflatin.h
index c5c2d13..d9170b3 100644
--- a/src/autofit/aflatin.h
+++ b/src/autofit/aflatin.h
@@ -4,7 +4,7 @@
/* */
/* Auto-fitter hinting routines for latin script (specification). */
/* */
-/* Copyright 2003-2007, 2009, 2011 by */
+/* Copyright 2003-2007, 2009, 2011-2012 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -27,7 +27,7 @@ FT_BEGIN_HEADER
/* the latin-specific script class */
- AF_DECLARE_SCRIPT_CLASS(af_latin_script_class)
+ AF_DECLARE_SCRIPT_CLASS( af_latin_script_class )
/* constants are given with units_per_em == 2048 in mind */
@@ -133,8 +133,7 @@ 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,
@@ -174,25 +173,17 @@ 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
+ * scripts 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,
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 );
diff --git a/src/autofit/aflatin2.c b/src/autofit/aflatin2.c
index ea6af8d..b1e9658 100644
--- a/src/autofit/aflatin2.c
+++ b/src/autofit/aflatin2.c
@@ -4,7 +4,7 @@
/* */
/* Auto-fitter hinting routines for latin script (body). */
/* */
-/* Copyright 2003-2011 by */
+/* Copyright 2003-2013 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -18,6 +18,7 @@
#include FT_ADVANCES_H
+#include "afglobal.h"
#include "aflatin.h"
#include "aflatin2.h"
#include "aferrors.h"
@@ -56,8 +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];
@@ -76,7 +76,8 @@
AF_Scaler scaler = &dummy->root.scaler;
- glyph_index = FT_Get_Char_Index( face, charcode );
+ glyph_index = FT_Get_Char_Index( face,
+ metrics->root.clazz->standard_char );
if ( glyph_index == 0 )
goto Exit;
@@ -198,8 +199,8 @@
/* 'af_latin2_blue_chars[blues]' string, then compute its top-most or */
/* bottom-most points (depending on `AF_IS_TOP_BLUE') */
- FT_TRACE5(( "blue zones computation\n" ));
- FT_TRACE5(( "------------------------------------------------\n" ));
+ FT_TRACE5(( "blue zones computation\n"
+ "======================\n\n" ));
for ( bb = 0; bb < AF_LATIN_BLUE_MAX; bb++ )
{
@@ -209,7 +210,7 @@
FT_Pos* blue_shoot;
- FT_TRACE5(( "blue %3d: ", bb ));
+ FT_TRACE5(( "blue zone %d:\n", bb ));
num_flats = 0;
num_rounds = 0;
@@ -222,8 +223,6 @@
FT_Bool round;
- FT_TRACE5(( "'%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 )
@@ -285,13 +284,14 @@
best_last = last;
}
}
- FT_TRACE5(( "%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;
@@ -302,13 +302,16 @@
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;
@@ -316,13 +319,14 @@
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;
@@ -333,7 +337,7 @@
FT_CURVE_TAG( glyph->outline.tags[start] ) != FT_CURVE_TAG_ON ||
FT_CURVE_TAG( glyph->outline.tags[ end ] ) != FT_CURVE_TAG_ON );
- FT_TRACE5(( "%c ", round ? 'r' : 'f' ));
+ FT_TRACE5(( " (%s)\n", round ? "round" : "flat" ));
}
if ( round )
@@ -342,15 +346,13 @@
flats[num_flats++] = best_y;
}
- FT_TRACE5(( "\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
*/
- FT_TRACE5(( "empty\n" ));
+ FT_TRACE5(( " empty\n" ));
continue;
}
@@ -393,7 +395,13 @@
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;
@@ -408,7 +416,9 @@
if ( bb == AF_LATIN_BLUE_SMALL_TOP )
blue->flags |= AF_LATIN_BLUE_ADJUSTMENT;
- FT_TRACE5(( "-- ref = %ld, shoot = %ld\n", *blue_ref, *blue_shoot ));
+ FT_TRACE5(( " -> reference = %ld\n"
+ " overshoot = %ld\n",
+ *blue_ref, *blue_shoot ));
}
return;
@@ -465,7 +475,7 @@
af_latin2_metrics_init( AF_LatinMetrics metrics,
FT_Face face )
{
- FT_Error error = AF_Err_Ok;
+ FT_Error error = FT_Err_Ok;
FT_CharMap oldmap = face->charmap;
FT_UInt ee;
@@ -491,14 +501,13 @@
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;
}
@@ -553,8 +562,26 @@
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 1
if ( scaled != fitted )
@@ -658,6 +685,7 @@
{
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 );
@@ -680,7 +708,7 @@
{
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;
@@ -796,17 +824,17 @@
segment->dir = first->out_dir;
segment->first = first;
segment->last = point;
- 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;
@@ -815,7 +843,7 @@
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;
@@ -832,7 +860,7 @@
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;
@@ -900,16 +928,17 @@
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;
@@ -1036,7 +1065,7 @@
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];
@@ -1070,7 +1099,7 @@
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 );
}
@@ -1116,10 +1145,11 @@
{
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;
@@ -1417,7 +1447,7 @@
compare = &blue->ref;
dist = edge->fpos - compare->org;
- if (dist < 0)
+ if ( dist < 0 )
dist = -dist;
dist = FT_MulFix( dist, scale );
@@ -1521,8 +1551,8 @@
* 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;
@@ -1603,8 +1633,8 @@
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 )
@@ -1734,7 +1764,7 @@
if ( delta < 0 )
delta = -delta;
- if (delta >= 16)
+ if ( delta >= 16 )
{
dist = org_dist;
if ( dist < 48 )
@@ -1788,7 +1818,7 @@
{
FT_UNUSED( hints );
- serif->pos = base->pos + (serif->opos - base->opos);
+ serif->pos = base->pos + ( serif->opos - base->opos );
}
@@ -1870,9 +1900,10 @@
{
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;
}
}
}
@@ -1964,8 +1995,8 @@
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;
FT_TRACE5(( "DRIFT: %.2f\n", anchor_drift/64.0 ));
}
@@ -1984,8 +2015,8 @@
(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 );
FT_TRACE5(( "ALIGN: left=%.2f right=%.2f ",
org_left / 64.0, org_right / 64.0 ));
@@ -2013,13 +2044,13 @@
}
/* 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 ) )
{
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
@@ -2027,43 +2058,43 @@
* 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;
- FT_TRACE5(( "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;
- FT_TRACE5(( "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;
- FT_TRACE5(( "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;
- FT_TRACE5(( "dispD=%.2f (%d) ", (fit - org) / 64.0, delta ));
+ FT_TRACE5(( "dispD=%.2f (%d) ", ( fit - org ) / 64.0, delta ));
/* now find the best displacement */
{
@@ -2071,9 +2102,9 @@
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];
@@ -2086,7 +2117,7 @@
}
AlignStem:
- edge->pos = cur_center - (cur_len >> 1);
+ edge->pos = cur_center - ( cur_len >> 1 );
edge2->pos = edge->pos + cur_len;
FT_TRACE5(( "STEM1: %d (opos=%.2f) to %d (opos=%.2f)"
@@ -2359,6 +2390,7 @@
AF_DEFINE_SCRIPT_CLASS( af_latin2_script_class,
AF_SCRIPT_LATIN2,
af_latin2_uniranges,
+ 'o',
sizeof ( AF_LatinMetricsRec ),
diff --git a/src/autofit/aflatin2.h b/src/autofit/aflatin2.h
index 925c621..cbfa395 100644
--- a/src/autofit/aflatin2.h
+++ b/src/autofit/aflatin2.h
@@ -4,7 +4,7 @@
/* */
/* Auto-fitter hinting routines for latin script (specification). */
/* */
-/* Copyright 2003, 2004, 2005, 2006, 2007 by */
+/* Copyright 2003-2007, 2012 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -27,7 +27,7 @@ FT_BEGIN_HEADER
/* the latin-specific script class */
- AF_DECLARE_SCRIPT_CLASS(af_latin2_script_class)
+ AF_DECLARE_SCRIPT_CLASS( af_latin2_script_class )
/* */
diff --git a/src/autofit/afloader.c b/src/autofit/afloader.c
index 34ef9d8..17a6fb7 100644
--- a/src/autofit/afloader.c
+++ b/src/autofit/afloader.c
@@ -4,7 +4,7 @@
/* */
/* Auto-fitter glyph loading routines (body). */
/* */
-/* Copyright 2003-2009, 2011-2012 by */
+/* Copyright 2003-2009, 2011-2013 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -16,18 +16,22 @@
/***************************************************************************/
+#include "afglobal.h"
#include "afloader.h"
#include "afhints.h"
-#include "afglobal.h"
#include "aferrors.h"
+#include "afmodule.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 );
@@ -41,10 +45,11 @@
/* 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;
@@ -54,7 +59,7 @@
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 =
@@ -71,8 +76,11 @@
/* 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;
@@ -104,9 +112,11 @@
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;
@@ -124,10 +134,6 @@
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:
@@ -137,8 +143,8 @@
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 );
@@ -343,14 +349,14 @@
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;
@@ -381,7 +387,7 @@
default:
/* we don't support other formats (yet?) */
- error = AF_Err_Unimplemented_Feature;
+ error = FT_THROW( Unimplemented_Feature );
}
Hint_Metrics:
@@ -484,18 +490,19 @@
/* 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_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_Argument );
FT_ZERO( &scaler );
@@ -508,7 +515,7 @@
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;
diff --git a/src/autofit/afloader.h b/src/autofit/afloader.h
index eec0e92..1f34d17 100644
--- a/src/autofit/afloader.h
+++ b/src/autofit/afloader.h
@@ -25,11 +25,24 @@
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;
FT_Bool transformed;
@@ -43,21 +56,20 @@ 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_Int32 load_flags );
diff --git a/src/autofit/afmodule.c b/src/autofit/afmodule.c
index 20b6218..b1bb5ee 100644
--- a/src/autofit/afmodule.c
+++ b/src/autofit/afmodule.c
@@ -4,7 +4,7 @@
/* */
/* Auto-fitter module implementation (body). */
/* */
-/* Copyright 2003-2006, 2009, 2011 by */
+/* Copyright 2003-2006, 2009, 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 +16,10 @@
/***************************************************************************/
+#include "afglobal.h"
#include "afmodule.h"
#include "afloader.h"
+#include "aferrors.h"
#include "afpic.h"
#ifdef FT_DEBUG_AUTOFIT
@@ -28,66 +30,235 @@
#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
+
+
+ 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_Argument );
+
+ globals = (AF_FaceGlobals)face->autohint.data;
+ if ( !globals )
+ {
+ /* trigger computation of the global script 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;
+ }
+
+
+ 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;
+
+
+ module->fallback_script = *fallback_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 );
+ }
+
+
+ FT_Error
+ af_property_get( FT_Module ft_module,
+ const char* property_name,
+ void* value )
{
- FT_ModuleRec root;
- AF_LoaderRec loader[1];
+ FT_Error error = FT_Err_Ok;
+ AF_Module module = (AF_Module)ft_module;
+ FT_UInt fallback_script = module->fallback_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_scripts;
- } FT_AutofitterRec, *FT_Autofitter;
+ return error;
+ }
+ else if ( !ft_strcmp( property_name, "fallback-script" ) )
+ {
+ FT_UInt* val = (FT_UInt*)value;
+
+
+ *val = fallback_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 )
+ {
+ /* AF_SERVICES_GET derefers `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
+
+ 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_script = AF_SCRIPT_FALLBACK;
+
+ 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_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/autofit/afmodule.h b/src/autofit/afmodule.h
index d979239..c4e8f8f 100644
--- a/src/autofit/afmodule.h
+++ b/src/autofit/afmodule.h
@@ -23,9 +23,30 @@
#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_script;
+
+ AF_LoaderRec loader[1];
+
+ } AF_ModuleRec;
+
+
FT_DECLARE_MODULE(autofit_module_class)
diff --git a/src/autofit/afpic.c b/src/autofit/afpic.c
index 87074af..45e1448 100644
--- a/src/autofit/afpic.c
+++ b/src/autofit/afpic.c
@@ -4,7 +4,7 @@
/* */
/* The FreeType position independent code services for autofit module. */
/* */
-/* Copyright 2009, 2010, 2011 by */
+/* Copyright 2009-2013 by */
/* Oran Agra and Mickey Gabel. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -22,12 +22,25 @@
#include "afpic.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 library,
- FT_AutoHinter_ServiceRec* clazz );
+ FT_Error
+ FT_Create_Class_af_services( FT_Library library,
+ FT_ServiceDescRec** output_class );
+
+ void
+ FT_Destroy_Class_af_services( FT_Library library,
+ FT_ServiceDescRec* clazz );
+
+ void
+ 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 script classes */
#include "aflatin.h"
@@ -38,6 +51,7 @@
#include "afdummy.h"
#include "afindic.h"
+
void
autofit_module_class_pic_free( FT_Library library )
{
@@ -47,7 +61,15 @@
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;
}
}
@@ -58,8 +80,8 @@
{
FT_PIC_Container* pic_container = &library->pic_container;
FT_UInt ss;
- FT_Error error = AF_Err_Ok;
- AFModulePIC* container;
+ FT_Error error = FT_Err_Ok;
+ AFModulePIC* container = NULL;
FT_Memory memory = library->memory;
@@ -71,6 +93,13 @@
/* 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_SCRIPT_CLASSES_REC_COUNT ; ss++ )
{
container->af_script_classes[ss] =
@@ -93,17 +122,15 @@
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: */
+ 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/autofit/afpic.h b/src/autofit/afpic.h
index 21b0ff9..0acf803 100644
--- a/src/autofit/afpic.h
+++ b/src/autofit/afpic.h
@@ -4,7 +4,7 @@
/* */
/* The FreeType position independent code services for autofit module. */
/* */
-/* Copyright 2009, 2011 by */
+/* Copyright 2009, 2011-2012 by */
/* Oran Agra and Mickey Gabel. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -24,38 +24,58 @@ 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_SCRIPT_CLASSES_GET af_script_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
+#define AF_SCRIPT_CLASSES_COUNT 6
#else
-#define AF_SCRIPT_CLASSES_COUNT 5
+#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_ScriptClass af_script_classes[AF_SCRIPT_CLASSES_COUNT];
+ AF_ScriptClassRec af_script_classes_rec[AF_SCRIPT_CLASSES_REC_COUNT];
+ FT_AutoHinter_InterfaceRec af_autofitter_interface;
} AFModulePIC;
-#define GET_PIC( lib ) \
+
+#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 AF_SERVICES_GET \
+ ( GET_PIC( library )->af_services )
+#define AF_SERVICE_PROPERTIES_GET \
+ ( GET_PIC( library )->af_service_properties )
+
+#define AF_SCRIPT_CLASSES_GET \
+ ( GET_PIC( FT_FACE_LIBRARY( globals->face ) )->af_script_classes )
+#define AF_INTERFACE_GET \
+ ( GET_PIC( library )->af_autofitter_interface )
+
/* see afpic.c for the implementation */
void
diff --git a/src/autofit/aftypes.h b/src/autofit/aftypes.h
index 21e442c..9acd7ad 100644
--- a/src/autofit/aftypes.h
+++ b/src/autofit/aftypes.h
@@ -4,7 +4,7 @@
/* */
/* Auto-fitter types (specification only). */
/* */
-/* Copyright 2003-2009, 2011 by */
+/* Copyright 2003-2009, 2011-2012 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -87,8 +87,9 @@ 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 );
/*************************************************************************/
@@ -228,12 +229,12 @@ extern void* _af_debug_hints;
typedef enum AF_Script_
{
- AF_SCRIPT_NONE = 0,
+ AF_SCRIPT_DUMMY = 0,
AF_SCRIPT_LATIN = 1,
AF_SCRIPT_CJK = 2,
AF_SCRIPT_INDIC = 3,
#ifdef FT_OPTION_AUTOFIT2
- AF_SCRIPT_LATIN2,
+ AF_SCRIPT_LATIN2 = 4,
#endif
/* add new scripts here. Don't forget to update the list in */
@@ -245,6 +246,7 @@ extern void* _af_debug_hints;
typedef struct AF_ScriptClassRec_ const* AF_ScriptClass;
+ typedef struct AF_FaceGlobalsRec_* AF_FaceGlobals;
typedef struct AF_ScriptMetricsRec_
{
@@ -252,6 +254,8 @@ extern void* _af_debug_hints;
AF_ScalerRec scaler;
FT_Bool digits_have_same_width;
+ AF_FaceGlobals globals; /* to access properties */
+
} AF_ScriptMetricsRec, *AF_ScriptMetrics;
@@ -294,8 +298,9 @@ extern void* _af_debug_hints;
typedef struct AF_ScriptClassRec_
{
- AF_Script script;
- AF_Script_UniRange script_uni_ranges; /* last must be { 0, 0 } */
+ AF_Script script;
+ AF_Script_UniRange script_uni_ranges; /* last must be { 0, 0 } */
+ FT_UInt32 standard_char; /* for default width and height */
FT_Offset script_metrics_size;
AF_Script_InitMetricsFunc script_metrics_init;
@@ -315,13 +320,14 @@ extern void* _af_debug_hints;
FT_CALLBACK_TABLE const AF_ScriptClassRec \
script_class;
-#define AF_DEFINE_SCRIPT_CLASS( script_class, script_, ranges, m_size, \
+#define AF_DEFINE_SCRIPT_CLASS( script_class, script_, ranges, def_char, \
+ m_size, \
m_init, m_scale, m_done, h_init, h_apply ) \
- FT_CALLBACK_TABLE_DEF const AF_ScriptClassRec \
- script_class = \
+ FT_CALLBACK_TABLE_DEF const AF_ScriptClassRec script_class = \
{ \
script_, \
ranges, \
+ def_char, \
\
m_size, \
\
@@ -335,17 +341,19 @@ extern void* _af_debug_hints;
#else /* FT_CONFIG_OPTION_PIC */
-#define AF_DECLARE_SCRIPT_CLASS( script_class ) \
- FT_LOCAL( void ) \
- FT_Init_Class_##script_class( AF_ScriptClassRec* ac );
+#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, \
+#define AF_DEFINE_SCRIPT_CLASS( script_class, script_, ranges, def_char, \
+ m_size, \
m_init, m_scale, m_done, h_init, h_apply ) \
FT_LOCAL_DEF( void ) \
- FT_Init_Class_##script_class( AF_ScriptClassRec* ac ) \
+ FT_Init_Class_ ## script_class( AF_ScriptClassRec* ac ) \
{ \
ac->script = script_; \
ac->script_uni_ranges = ranges; \
+ ac->default_char = def_char; \
\
ac->script_metrics_size = m_size; \
\
diff --git a/src/base/basepic.c b/src/base/basepic.c
index d754eb1..0af770e 100644
--- a/src/base/basepic.c
+++ b/src/base/basepic.c
@@ -4,7 +4,7 @@
/* */
/* The FreeType position independent code services for base. */
/* */
-/* Copyright 2009 by */
+/* Copyright 2009, 2012 by */
/* Oran Agra and Mickey Gabel. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -21,14 +21,22 @@
#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* clazz );
- void FT_Init_Class_ft_bitmap_glyph_class( FT_Glyph_Class* clazz );
+ void
+ FT_Init_Class_ft_outline_glyph_class( FT_Glyph_Class* clazz );
+
+ void
+ FT_Init_Class_ft_bitmap_glyph_class( FT_Glyph_Class* clazz );
- /* forward declaration of PIC init function from ftrfork.c (not modularized) */
- void FT_Init_Table_raccess_guess_table( ft_raccess_guess_rec* record );
+#ifdef FT_CONFIG_OPTION_MAC_FONTS
+ /* forward declaration of PIC init function from ftrfork.c */
+ /* (not modularized) */
+ void
+ FT_Init_Table_raccess_guess_table( ft_raccess_guess_rec* record );
+#endif
/* forward declaration of PIC init functions from ftinit.c */
FT_Error
@@ -37,14 +45,18 @@
void
ft_destroy_default_module_classes( FT_Library library );
+
void
ft_base_pic_free( FT_Library library )
{
FT_PIC_Container* pic_container = &library->pic_container;
- FT_Memory memory = library->memory;
+ 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 );
@@ -57,12 +69,13 @@
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_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 ) );
pic_container->base = container;
@@ -72,21 +85,23 @@
if ( error )
goto Exit;
- /* initialize pointer table - this is how the module usually expects this data */
+ /* 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_raccess_guess_table(
- (ft_raccess_guess_rec*)&container->ft_raccess_guess_table);
+ (ft_raccess_guess_rec*)&container->ft_raccess_guess_table );
+#endif
-Exit:
- if( error )
+ Exit:
+ if ( error )
ft_base_pic_free( library );
return error;
}
-
#endif /* FT_CONFIG_OPTION_PIC */
diff --git a/src/base/basepic.h b/src/base/basepic.h
index bf90bef..329d7c8 100644
--- a/src/base/basepic.h
+++ b/src/base/basepic.h
@@ -25,11 +25,13 @@ 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
+#define FT_RACCESS_GUESS_TABLE_GET ft_raccess_guess_table
#endif
#else /* FT_CONFIG_OPTION_PIC */
@@ -41,25 +43,35 @@ FT_BEGIN_HEADER
#endif
- typedef struct BasePIC_
+ 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];
+ 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)
+#define FT_RACCESS_GUESS_TABLE_GET \
+ ( GET_PIC( library )->ft_raccess_guess_table )
#endif
- /* see basepic.c for the implementation. */
+
+ /* see basepic.c for the implementation */
void
ft_base_pic_free( FT_Library library );
@@ -67,7 +79,8 @@ FT_BEGIN_HEADER
ft_base_pic_init( FT_Library library );
#endif /* FT_CONFIG_OPTION_PIC */
- /* */
+
+ /* */
FT_END_HEADER
diff --git a/src/base/ftadvanc.c b/src/base/ftadvanc.c
index a8bb43d..5207847 100644
--- a/src/base/ftadvanc.c
+++ b/src/base/ftadvanc.c
@@ -4,7 +4,7 @@
/* */
/* Quick computation of advance widths (body). */
/* */
-/* Copyright 2008, 2009, 2011 by */
+/* Copyright 2008, 2009, 2011, 2013 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 +78,10 @@
if ( !face )
- return FT_Err_Invalid_Face_Handle;
+ return FT_THROW( Invalid_Face_Handle );
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 +93,7 @@
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 +116,12 @@
if ( !face )
- return FT_Err_Invalid_Face_Handle;
+ return FT_THROW( Invalid_Face_Handle );
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;
@@ -131,14 +133,14 @@
if ( !error )
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++ )
diff --git a/src/base/ftbbox.c b/src/base/ftbbox.c
index 4b8e911..6d1c44c 100644
--- a/src/base/ftbbox.c
+++ b/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 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
@@ -222,65 +224,100 @@
FT_Pos* min,
FT_Pos* max )
{
- FT_Pos stack[32*3 + 1], *arc;
-
+ FT_Pos q1, q2, q3, q4;
- arc = stack;
- arc[0] = p1;
- arc[1] = p2;
- arc[2] = p3;
- arc[3] = p4;
+ q1 = p1;
+ q2 = p2;
+ q3 = p3;
+ q4 = p4;
- do
+ /* for a conic segment to possibly reach new maximum */
+ /* one of its off-points must be above the current value */
+ while ( q2 > *max || q3 > *max )
{
- FT_Pos y1 = arc[0];
- FT_Pos y2 = arc[1];
- FT_Pos y3 = arc[2];
- FT_Pos y4 = arc[3];
-
-
- if ( y1 == y4 )
+ /* 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 if 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;
- }
+ *max = q1;
+ break;
}
+ if ( q3 == q4 && q2 <= q4 )
+ {
+ *max = 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;
+ q1 = p1;
+ q2 = p2;
+ q3 = p3;
+ q4 = p4;
- Test:
- if ( y1 < *min ) *min = y1;
- if ( y4 > *max ) *max = y4;
- arc -= 3;
+ /* for a conic segment to possibly reach new minimum */
+ /* one of its off-points must be below the current value */
+ while ( q2 < *min || q3 < *min )
+ {
+ /* determine which half contains the minimum and split */
+ if ( q1 + q2 < q3 + q4 ) /* first half */
+ {
+ 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 /* second half */
+ {
+ 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;
+ }
- Suite:
- ;
- } while ( arc >= stack );
+ /* check if either end reached the minimum */
+ if ( q1 == q2 && q1 <= q3 )
+ {
+ *min = q1;
+ break;
+ }
+ if ( q3 == q4 && q2 >= q4 )
+ {
+ *min = q4;
+ break;
+ }
+ }
}
#else
@@ -358,107 +395,57 @@
return;
}
- /* There are some split points. Find them. */
+ /* There are some split points. Find them. */
+ /* We already made sure that a, b, and c below cannot be all zero. */
{
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;
+ FT_Int shift;
/* 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. */
+ /* 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. */
+ /* We normalize a, b, and c to `8.16' fixed-point values to ensure */
+ /* that their product is held in a `16.16' value including the sign. */
+ /* Necessarily, we need to shift `a', `b', and `c' so that the most */
+ /* significant bit of their absolute values is at position 22. */
+ /* */
+ /* This also means that we are using 23 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). */
- {
- 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;
+ shift = FT_MSB( FT_ABS( a ) | FT_ABS( b ) | FT_ABS( c ) );
- 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;
+ if ( shift > 22 )
+ {
+ shift -= 22;
- } while ( t1 < 0x400000UL );
+ /* this loses some bits of precision, but we use 23 of them */
+ /* for the computation anyway */
+ a >>= shift;
+ b >>= shift;
+ c >>= shift;
+ }
+ else
+ {
+ shift = 22 - shift;
- a <<= shift;
- b <<= shift;
- c <<= shift;
- }
+ a <<= shift;
+ b <<= shift;
+ c <<= shift;
}
/* handle a == 0 */
@@ -581,10 +568,10 @@ FT_DEFINE_OUTLINE_FUNCS(bbox_interface,
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 )
diff --git a/src/base/ftbitmap.c b/src/base/ftbitmap.c
index 84fa322..975818e 100644
--- a/src/base/ftbitmap.c
+++ b/src/base/ftbitmap.c
@@ -4,7 +4,7 @@
/* */
/* FreeType utility functions for bitmaps (body). */
/* */
-/* Copyright 2004-2009, 2011 by */
+/* Copyright 2004-2009, 2011, 2013 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
@@ -135,7 +137,7 @@
new_pitch = ( width + xpixels );
break;
default:
- return FT_Err_Invalid_Glyph_Format;
+ return FT_THROW( Invalid_Glyph_Format );
}
/* if no need to allocate memory */
@@ -223,14 +225,14 @@
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;
@@ -238,7 +240,7 @@
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 )
{
@@ -277,6 +279,10 @@
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 );
@@ -369,6 +375,59 @@
}
+ FT_Byte
+ ft_gray_for_premultiplied_srgb_bgra( const FT_Byte* bgra )
+ {
+ FT_Long a = bgra[3];
+ FT_Long b = bgra[0];
+ FT_Long g = bgra[1];
+ FT_Long r = bgra[2];
+ FT_Long l;
+
+
+ /*
+ * 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.
+ */
+
+ /* Undo premultification, get the number in a 16.16 form. */
+ b = FT_MulDiv( b, 65536, a );
+ g = FT_MulDiv( g, 65536, a );
+ r = FT_MulDiv( r, 65536, a );
+ a = a * 256;
+
+ /* Apply gamma of 2.0 instead of 2.2. */
+ b = FT_MulFix( b, b );
+ g = FT_MulFix( g, g );
+ r = FT_MulFix( r, r );
+
+ /* Apply coefficients. */
+ b = FT_MulFix( b, 4731 /* 0.0722 * 65536 */ );
+ g = FT_MulFix( g, 46871 /* 0.7152 * 65536 */ );
+ r = FT_MulFix( r, 13933 /* 0.2126 * 65536 */ );
+
+ l = r + g + b;
+
+ /*
+ * Final transparency can be determined this way:
+ *
+ * - 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).
+ */
+
+ return (FT_Byte)( FT_MulFix( 65535 - l, a ) >> 8 );
+ }
+
+
/* documentation is in ftbitmap.h */
FT_EXPORT_DEF( FT_Error )
@@ -382,7 +441,7 @@
if ( !library )
- return FT_Err_Invalid_Library_Handle;
+ return FT_THROW( Invalid_Library_Handle );
memory = library->memory;
@@ -394,6 +453,7 @@
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;
@@ -419,7 +479,7 @@
if ( target->pitch > 0 &&
(FT_ULong)target->rows > FT_ULONG_MAX / target->pitch )
- return FT_Err_Invalid_Argument;
+ return FT_THROW( Invalid_Argument );
if ( target->rows * target->pitch > old_size &&
FT_QREALLOC( target->buffer,
@@ -429,7 +489,7 @@
break;
default:
- error = FT_Err_Invalid_Argument;
+ error = FT_THROW( Invalid_Argument );
}
switch ( source->pixel_mode )
@@ -606,6 +666,37 @@
}
break;
+ case FT_PIXEL_MODE_BGRA:
+ {
+ 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;
+
+
+ target->num_grays = 256;
+
+ for ( i = source->rows; i > 0; i-- )
+ {
+ FT_Byte* ss = s;
+ FT_Byte* tt = t;
+ FT_Int j;
+
+
+ for ( j = source->width; j > 0; j-- )
+ {
+ tt[0] = ft_gray_for_premultiplied_srgb_bgra( ss );
+
+ ss += 4;
+ tt += 1;
+ }
+
+ s += s_pitch;
+ t += t_pitch;
+ }
+ }
+ break;
default:
;
@@ -650,10 +741,10 @@
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/base/ftcalc.c b/src/base/ftcalc.c
index 2aeea04..0ec0d78 100644
--- a/src/base/ftcalc.c
+++ b/src/base/ftcalc.c
@@ -4,7 +4,7 @@
/* */
/* Arithmetic computations (body). */
/* */
-/* Copyright 1996-2006, 2008, 2012 by */
+/* Copyright 1996-2006, 2008, 2012-2013 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -34,6 +34,7 @@
#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
@@ -42,13 +43,9 @@
#undef FT_MulFix
#endif
-/* we need to define a 64-bits data type here */
+/* we need to emulate a 64-bit data type if a real one isn't available */
-#ifdef FT_LONG64
-
- typedef FT_INT64 FT_Int64;
-
-#else
+#ifndef FT_LONG64
typedef struct FT_Int64_
{
@@ -57,7 +54,7 @@
} FT_Int64;
-#endif /* FT_LONG64 */
+#endif /* !FT_LONG64 */
/*************************************************************************/
@@ -103,39 +100,57 @@
}
-#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 */
+ /* determine msb bit index in `shift' */
+ if ( z >= ( 1L << 16 ) )
+ {
+ z >>= 16;
+ shift += 16;
+ }
+ if ( z >= ( 1L << 8 ) )
+ {
+ z >>= 8;
+ shift += 8;
+ }
+ if ( z >= ( 1L << 4 ) )
+ {
+ z >>= 4;
+ shift += 4;
+ }
+ if ( z >= ( 1L << 2 ) )
+ {
+ z >>= 2;
+ shift += 2;
+ }
+ if ( z >= ( 1L << 1 ) )
+ {
+ z >>= 1;
+ shift += 1;
+ }
- FT_EXPORT_DEF( FT_Int32 )
- FT_Sqrt32( FT_Int32 x )
- {
- FT_UInt32 val, root, newroot, mask;
+ return shift;
+ }
- root = 0;
- mask = (FT_UInt32)0x40000000UL;
- val = (FT_UInt32)x;
+ /* documentation is in ftcalc.h */
- do
- {
- newroot = root + mask;
- if ( newroot <= val )
- {
- val -= newroot;
- root = newroot + mask;
- }
+ FT_BASE_DEF( FT_Fixed )
+ FT_Hypot( FT_Fixed x,
+ FT_Fixed y )
+ {
+ FT_Vector v;
- root >>= 1;
- mask >>= 2;
- } while ( mask != 0 );
+ v.x = x;
+ v.y = y;
- return root;
+ return FT_Vector_Length( &v );
}
-#endif /* FT_CONFIG_OPTION_OLD_INTERNALS */
-
#ifdef FT_LONG64
@@ -163,8 +178,6 @@
}
-#ifdef TT_USE_BYTECODE_INTERPRETER
-
/* documentation is in ftcalc.h */
FT_BASE_DEF( FT_Long )
@@ -187,8 +200,6 @@
return ( s > 0 ) ? d : -d;
}
-#endif /* TT_USE_BYTECODE_INTERPRETER */
-
/* documentation is in freetype.h */
@@ -235,16 +246,25 @@
FT_Int32 s;
FT_UInt32 q;
+
s = 1;
- if ( a < 0 ) { a = -a; s = -1; }
- if ( b < 0 ) { b = -b; s = -s; }
+ 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 );
+ q = (FT_UInt32)( ( ( (FT_UInt64)a << 16 ) + ( b >> 1 ) ) / b );
return ( s < 0 ? -(FT_Long)q : (FT_Long)q );
}
@@ -392,8 +412,6 @@
}
-#ifdef TT_USE_BYTECODE_INTERPRETER
-
FT_BASE_DEF( FT_Long )
FT_MulDiv_No_Round( FT_Long a,
FT_Long b,
@@ -426,8 +444,6 @@
return ( s < 0 ? -a : a );
}
-#endif /* TT_USE_BYTECODE_INTERPRETER */
-
/* documentation is in freetype.h */
@@ -552,7 +568,7 @@
else if ( ( a >> 16 ) == 0 )
{
/* compute result directly */
- q = (FT_UInt32)( ( a << 16 ) + ( b >> 1 ) ) / (FT_UInt32)b;
+ q = (FT_UInt32)( ( (FT_ULong)a << 16 ) + ( b >> 1 ) ) / (FT_UInt32)b;
}
else
{
@@ -560,8 +576,8 @@
FT_Int64 temp, temp2;
- temp.hi = (FT_Int32) ( a >> 16 );
- temp.lo = (FT_UInt32)( a << 16 );
+ 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 );
@@ -727,14 +743,14 @@
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 );
diff --git a/src/base/ftdbgmem.c b/src/base/ftdbgmem.c
index 12fed04..6fb86fe 100644
--- a/src/base/ftdbgmem.c
+++ b/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, */
@@ -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" );
}
diff --git a/src/base/ftdebug.c b/src/base/ftdebug.c
index 2adbeab..b9156d1 100644
--- a/src/base/ftdebug.c
+++ b/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 */
@@ -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/base/ftgloadr.c b/src/base/ftgloadr.c
index 8483450..663db26 100644
--- a/src/base/ftgloadr.c
+++ b/src/base/ftgloadr.c
@@ -4,7 +4,7 @@
/* */
/* The FreeType glyph loader (body). */
/* */
-/* Copyright 2002, 2003, 2004, 2005, 2006, 2010 by */
+/* Copyright 2002-2006, 2010, 2013 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -17,6 +17,7 @@
#include <ft2build.h>
+#include FT_INTERNAL_DEBUG_H
#include FT_INTERNAL_GLYPH_LOADER_H
#include FT_INTERNAL_MEMORY_H
#include FT_INTERNAL_OBJECTS_H
@@ -219,7 +220,7 @@
new_max = FT_PAD_CEIL( new_max, 8 );
if ( new_max > FT_OUTLINE_POINTS_MAX )
- return FT_Err_Array_Too_Large;
+ return FT_THROW( Array_Too_Large );
if ( FT_RENEW_ARRAY( base->points, old_max, new_max ) ||
FT_RENEW_ARRAY( base->tags, old_max, new_max ) )
@@ -251,7 +252,7 @@
new_max = FT_PAD_CEIL( new_max, 4 );
if ( new_max > FT_OUTLINE_CONTOURS_MAX )
- return FT_Err_Array_Too_Large;
+ return FT_THROW( Array_Too_Large );
if ( FT_RENEW_ARRAY( base->contours, old_max, new_max ) )
goto Exit;
@@ -318,7 +319,7 @@
}
- /* add current glyph to the base image - and prepare for another */
+ /* add current glyph to the base image -- and prepare for another */
FT_BASE_DEF( void )
FT_GlyphLoader_Add( FT_GlyphLoader loader )
{
diff --git a/src/base/ftglyph.c b/src/base/ftglyph.c
index 591b57a..5dd28a8 100644
--- a/src/base/ftglyph.c
+++ b/src/base/ftglyph.c
@@ -4,7 +4,7 @@
/* */
/* FreeType convenience functions to handle glyphs (body). */
/* */
-/* Copyright 1996-2001, 2002, 2003, 2004, 2005, 2007, 2008, 2010 by */
+/* Copyright 1996-2005, 2007, 2008, 2010, 2012, 2013 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -29,6 +29,8 @@
#include <ft2build.h>
+#include FT_INTERNAL_DEBUG_H
+
#include FT_GLYPH_H
#include FT_OUTLINE_H
#include FT_BITMAP_H
@@ -65,7 +67,7 @@
if ( slot->format != FT_GLYPH_FORMAT_BITMAP )
{
- error = FT_Err_Invalid_Glyph_Format;
+ error = FT_THROW( Invalid_Glyph_Format );
goto Exit;
}
@@ -166,7 +168,7 @@
/* check format in glyph slot */
if ( slot->format != FT_GLYPH_FORMAT_OUTLINE )
{
- error = FT_Err_Invalid_Glyph_Format;
+ error = FT_THROW( Invalid_Glyph_Format );
goto Exit;
}
@@ -314,7 +316,7 @@
/* check arguments */
if ( !target )
{
- error = FT_Err_Invalid_Argument;
+ error = FT_THROW( Invalid_Argument );
goto Exit;
}
@@ -322,7 +324,7 @@
if ( !source || !source->clazz )
{
- error = FT_Err_Invalid_Argument;
+ error = FT_THROW( Invalid_Argument );
goto Exit;
}
@@ -361,12 +363,12 @@
if ( !slot )
- return FT_Err_Invalid_Slot_Handle;
+ return FT_THROW( Invalid_Slot_Handle );
library = slot->library;
if ( !aglyph )
- return FT_Err_Invalid_Argument;
+ return FT_THROW( Invalid_Argument );
/* if it is a bitmap, that's easy :-) */
if ( slot->format == FT_GLYPH_FORMAT_BITMAP )
@@ -388,7 +390,7 @@
if ( !clazz )
{
- error = FT_Err_Invalid_Glyph_Format;
+ error = FT_THROW( Invalid_Glyph_Format );
goto Exit;
}
@@ -427,7 +429,7 @@
if ( !glyph || !glyph->clazz )
- error = FT_Err_Invalid_Argument;
+ error = FT_THROW( Invalid_Argument );
else
{
clazz = glyph->clazz;
@@ -441,7 +443,7 @@
FT_Vector_Transform( &glyph->advance, matrix );
}
else
- error = FT_Err_Invalid_Glyph_Format;
+ error = FT_THROW( Invalid_Glyph_Format );
}
return error;
}
@@ -510,7 +512,7 @@
FT_GlyphSlotRec dummy;
FT_GlyphSlot_InternalRec dummy_internal;
FT_Error error = FT_Err_Ok;
- FT_Glyph glyph;
+ FT_Glyph b, glyph;
FT_BitmapGlyph bitmap = NULL;
const FT_Glyph_Class* clazz;
@@ -547,10 +549,10 @@
dummy.format = clazz->glyph_format;
/* create result bitmap glyph */
- error = ft_new_glyph( library, FT_BITMAP_GLYPH_CLASS_GET,
- (FT_Glyph*)(void*)&bitmap );
+ error = ft_new_glyph( library, FT_BITMAP_GLYPH_CLASS_GET, &b );
if ( error )
goto Exit;
+ bitmap = (FT_BitmapGlyph)b;
#if 1
/* if `origin' is set, translate the glyph image */
@@ -600,7 +602,7 @@
return error;
Bad:
- error = FT_Err_Invalid_Argument;
+ error = FT_THROW( Invalid_Argument );
goto Exit;
}
diff --git a/src/base/ftinit.c b/src/base/ftinit.c
index 91f8e2a..85f321f 100644
--- a/src/base/ftinit.c
+++ b/src/base/ftinit.c
@@ -4,7 +4,7 @@
/* */
/* FreeType initialization layer (body). */
/* */
-/* Copyright 1996-2001, 2002, 2005, 2007, 2009, 2012 by */
+/* Copyright 1996-2002, 2005, 2007, 2009, 2012, 2013 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -156,7 +156,7 @@
{
FT_Error error;
FT_Memory memory;
- FT_Module_Class* *classes;
+ FT_Module_Class* *classes = NULL;
FT_Module_Class* clazz;
FT_UInt i;
BasePIC* pic_container = (BasePIC*)library->pic_container.base;
@@ -166,7 +166,7 @@
pic_container->default_module_classes = 0;
- if ( FT_ALLOC( classes, sizeof ( FT_Module_Class* ) *
+ if ( FT_ALLOC( classes, sizeof ( FT_Module_Class* ) *
( FT_NUM_MODULE_CLASSES + 1 ) ) )
return error;
@@ -242,7 +242,7 @@
if ( !memory )
{
FT_ERROR(( "FT_Init_FreeType: cannot find memory manager\n" ));
- return FT_Err_Unimplemented_Feature;
+ return FT_THROW( Unimplemented_Feature );
}
/* build a library out of it, then fill it with the set of */
diff --git a/src/base/ftlcdfil.c b/src/base/ftlcdfil.c
index 0da4ba1..852fb32 100644
--- a/src/base/ftlcdfil.c
+++ b/src/base/ftlcdfil.c
@@ -4,7 +4,7 @@
/* */
/* FreeType API for color filtering of subpixel bitmap glyphs (body). */
/* */
-/* Copyright 2006, 2008, 2009, 2010 by */
+/* Copyright 2006, 2008-2010, 2013 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_LCD_FILTER_H
#include FT_IMAGE_H
#include FT_INTERNAL_OBJECTS_H
@@ -271,7 +273,7 @@
unsigned char *weights )
{
if ( !library || !weights )
- return FT_Err_Invalid_Argument;
+ return FT_THROW( Invalid_Argument );
ft_memcpy( library->lcd_weights, weights, 5 );
@@ -292,7 +294,7 @@
if ( !library )
- return FT_Err_Invalid_Argument;
+ return FT_THROW( Invalid_Argument );
switch ( filter )
{
@@ -339,7 +341,7 @@
#endif
default:
- return FT_Err_Invalid_Argument;
+ return FT_THROW( Invalid_Argument );
}
library->lcd_filter = filter;
@@ -356,7 +358,7 @@
FT_UNUSED( library );
FT_UNUSED( weights );
- return FT_Err_Unimplemented_Feature;
+ return FT_THROW( Unimplemented_Feature );
}
@@ -367,7 +369,7 @@
FT_UNUSED( library );
FT_UNUSED( filter );
- return FT_Err_Unimplemented_Feature;
+ return FT_THROW( Unimplemented_Feature );
}
#endif /* !FT_CONFIG_OPTION_SUBPIXEL_RENDERING */
diff --git a/src/base/ftmm.c b/src/base/ftmm.c
index 0307729..18ff879 100644
--- a/src/base/ftmm.c
+++ b/src/base/ftmm.c
@@ -4,7 +4,7 @@
/* */
/* Multiple Master font support (body). */
/* */
-/* Copyright 1996-2001, 2003, 2004, 2009 by */
+/* Copyright 1996-2001, 2003, 2004, 2009, 2013 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_MULTIPLE_MASTERS_H
#include FT_INTERNAL_OBJECTS_H
#include FT_SERVICE_MULTIPLE_MASTERS_H
@@ -42,9 +44,9 @@
*aservice = NULL;
if ( !face )
- return FT_Err_Invalid_Face_Handle;
+ return FT_THROW( Invalid_Face_Handle );
- error = FT_Err_Invalid_Argument;
+ error = FT_ERR( Invalid_Argument );
if ( FT_HAS_MULTIPLE_MASTERS( face ) )
{
@@ -73,7 +75,7 @@
error = ft_face_get_mm_service( face, &service );
if ( !error )
{
- error = FT_Err_Invalid_Argument;
+ error = FT_ERR( Invalid_Argument );
if ( service->get_mm )
error = service->get_mm( face, amaster );
}
@@ -95,7 +97,7 @@
error = ft_face_get_mm_service( face, &service );
if ( !error )
{
- error = FT_Err_Invalid_Argument;
+ error = FT_ERR( Invalid_Argument );
if ( service->get_mm_var )
error = service->get_mm_var( face, amaster );
}
@@ -118,7 +120,7 @@
error = ft_face_get_mm_service( face, &service );
if ( !error )
{
- error = FT_Err_Invalid_Argument;
+ error = FT_ERR( Invalid_Argument );
if ( service->set_mm_design )
error = service->set_mm_design( face, num_coords, coords );
}
@@ -141,7 +143,7 @@
error = ft_face_get_mm_service( face, &service );
if ( !error )
{
- error = FT_Err_Invalid_Argument;
+ error = FT_ERR( Invalid_Argument );
if ( service->set_var_design )
error = service->set_var_design( face, num_coords, coords );
}
@@ -164,7 +166,7 @@
error = ft_face_get_mm_service( face, &service );
if ( !error )
{
- error = FT_Err_Invalid_Argument;
+ error = FT_ERR( Invalid_Argument );
if ( service->set_mm_blend )
error = service->set_mm_blend( face, num_coords, coords );
}
@@ -190,7 +192,7 @@
error = ft_face_get_mm_service( face, &service );
if ( !error )
{
- error = FT_Err_Invalid_Argument;
+ error = FT_ERR( Invalid_Argument );
if ( service->set_mm_blend )
error = service->set_mm_blend( face, num_coords, coords );
}
diff --git a/src/base/ftobjs.c b/src/base/ftobjs.c
index 36ee797..ac2a39c 100644
--- a/src/base/ftobjs.c
+++ b/src/base/ftobjs.c
@@ -4,7 +4,7 @@
/* */
/* The FreeType private base classes (body). */
/* */
-/* Copyright 1996-2012 by */
+/* Copyright 1996-2013 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -29,6 +29,7 @@
#include FT_TRUETYPE_TAGS_H
#include FT_TRUETYPE_IDS_H
+#include FT_SERVICE_PROPERTIES_H
#include FT_SERVICE_SFNT_H
#include FT_SERVICE_POSTSCRIPT_NAME_H
#include FT_SERVICE_GLYPH_DICT_H
@@ -40,6 +41,32 @@
#include "ftbase.h"
#endif
+
+#ifdef FT_DEBUG_LEVEL_TRACE
+
+#include FT_BITMAP_H
+
+#if defined( _MSC_VER ) /* Visual C++ (and Intel C++) */
+ /* We disable the warning `conversion from XXX to YYY, */
+ /* possible loss of data' in order to compile cleanly with */
+ /* the maximum level of warnings: `md5.c' is non-FreeType */
+ /* code, and it gets used during development builds only. */
+#pragma warning( push )
+#pragma warning( disable : 4244 )
+#endif /* _MSC_VER */
+
+ /* it's easiest to include `md5.c' directly */
+#define free md5_free /* suppress a shadow warning */
+#include "md5.c"
+#undef free
+
+#if defined( _MSC_VER )
+#pragma warning( pop )
+#endif
+
+#endif /* FT_DEBUG_LEVEL_TRACE */
+
+
#define GRID_FIT_METRICS
@@ -136,10 +163,10 @@
*astream = 0;
if ( !library )
- return FT_Err_Invalid_Library_Handle;
+ return FT_THROW( Invalid_Library_Handle );
if ( !args )
- return FT_Err_Invalid_Argument;
+ return FT_THROW( Invalid_Argument );
memory = library->memory;
@@ -177,7 +204,7 @@
#endif
else
- error = FT_Err_Invalid_Argument;
+ error = FT_THROW( Invalid_Argument );
if ( error )
FT_FREE( stream );
@@ -384,7 +411,7 @@
if ( !face || !face->driver )
- return FT_Err_Invalid_Argument;
+ return FT_THROW( Invalid_Argument );
driver = face->driver;
clazz = driver->clazz;
@@ -574,7 +601,7 @@
if ( !face || !face->size || !face->glyph )
- return FT_Err_Invalid_Face_Handle;
+ return FT_THROW( Invalid_Face_Handle );
/* The validity test for `glyph_index' is performed by the */
/* font drivers. */
@@ -651,7 +678,7 @@
if ( autohint )
{
- FT_AutoHinter_Service hinting;
+ FT_AutoHinter_Interface hinting;
/* try to load embedded bitmaps first if available */
@@ -680,7 +707,7 @@
internal->transform_flags = 0;
/* load auto-hinted outline */
- hinting = (FT_AutoHinter_Service)hinter->clazz->module_interface;
+ hinting = (FT_AutoHinter_Interface)hinter->clazz->module_interface;
error = hinting->load_glyph( (FT_AutoHinter)hinter,
slot, face->size,
@@ -814,7 +841,7 @@
if ( !face )
- return FT_Err_Invalid_Face_Handle;
+ return FT_THROW( Invalid_Face_Handle );
glyph_index = (FT_UInt)char_code;
if ( face->charmap )
@@ -965,7 +992,7 @@
first = face->charmaps;
if ( !first )
- return FT_Err_Invalid_CharMap_Handle;
+ return FT_THROW( Invalid_CharMap_Handle );
/*
* The original TrueType specification(s) only specified charmap
@@ -1043,7 +1070,7 @@
}
}
- return FT_Err_Invalid_CharMap_Handle;
+ return FT_THROW( Invalid_CharMap_Handle );
}
@@ -1165,7 +1192,7 @@
/* is returned. */
/* no error should happen, but we want to play safe */
- if ( error2 && error2 != FT_Err_Invalid_CharMap_Handle )
+ if ( error2 && FT_ERR_NEQ( error2, Invalid_CharMap_Handle ) )
{
error = error2;
goto Fail;
@@ -1206,7 +1233,7 @@
/* test for valid `library' and `aface' delayed to FT_Open_Face() */
if ( !pathname )
- return FT_Err_Invalid_Argument;
+ return FT_THROW( Invalid_Argument );
args.flags = FT_OPEN_PATHNAME;
args.pathname = (char*)pathname;
@@ -1232,7 +1259,7 @@
/* test for valid `library' and `face' delayed to FT_Open_Face() */
if ( !file_base )
- return FT_Err_Invalid_Argument;
+ return FT_THROW( Invalid_Argument );
args.flags = FT_OPEN_MEMORY;
args.memory_base = file_base;
@@ -1304,10 +1331,10 @@
if ( !library )
- return FT_Err_Invalid_Library_Handle;
+ return FT_THROW( Invalid_Library_Handle );
if ( !base )
- return FT_Err_Invalid_Argument;
+ return FT_THROW( Invalid_Argument );
*astream = 0;
memory = library->memory;
@@ -1421,7 +1448,7 @@
if ( FT_READ_ULONG( tag ) )
return error;
if ( tag != TTAG_typ1 )
- return FT_Err_Unknown_File_Format;
+ return FT_THROW( Unknown_File_Format );
if ( FT_READ_USHORT( numTables ) )
return error;
@@ -1458,7 +1485,7 @@
if ( face_index >= 0 && pstable_index == face_index )
return FT_Err_Ok;
}
- return FT_Err_Table_Missing;
+ return FT_THROW( Table_Missing );
}
@@ -1504,7 +1531,7 @@
error = open_face_from_buffer( library,
sfnt_ps,
length,
- face_index < 0 ? face_index : 0,
+ FT_MIN( face_index, 0 ),
is_sfnt_cid ? "cid" : "type1",
aface );
Exit:
@@ -1512,7 +1539,7 @@
FT_Error error1;
- if ( error == FT_Err_Unknown_File_Format )
+ if ( FT_ERR_EQ( error, Unknown_File_Format ) )
{
error1 = FT_Stream_Seek( stream, pos );
if ( error1 )
@@ -1540,7 +1567,7 @@
FT_Long face_index,
FT_Face *aface )
{
- FT_Error error = FT_Err_Cannot_Open_Resource;
+ FT_Error error = FT_ERR( Cannot_Open_Resource );
FT_Memory memory = library->memory;
FT_Byte* pfb_data = NULL;
int i, type, flags;
@@ -1633,7 +1660,7 @@
pfb_data[pfb_pos++] = 0;
}
- error = FT_Err_Cannot_Open_Resource;
+ error = FT_ERR( Cannot_Open_Resource );
if ( pfb_pos > pfb_len || pfb_pos + rlen > pfb_len )
goto Exit2;
@@ -1695,7 +1722,7 @@
if ( face_index == -1 )
face_index = 0;
if ( face_index >= resource_cnt )
- return FT_Err_Cannot_Open_Resource;
+ return FT_THROW( Cannot_Open_Resource );
flag_offset = offsets[face_index];
error = FT_Stream_Seek( stream, flag_offset );
@@ -1705,7 +1732,7 @@
if ( FT_READ_LONG( rlen ) )
goto Exit;
if ( rlen == -1 )
- return FT_Err_Cannot_Open_Resource;
+ return FT_THROW( Cannot_Open_Resource );
error = open_face_PS_from_sfnt_stream( library,
stream,
@@ -1812,7 +1839,7 @@
if ( NULL == stream )
- return FT_Err_Invalid_Stream_Operation;
+ return FT_THROW( Invalid_Stream_Operation );
error = FT_Stream_Seek( stream, 0 );
if ( error )
@@ -1829,7 +1856,7 @@
header[ 1] > 33 ||
header[63] != 0 ||
header[2 + header[1]] != 0 )
- return FT_Err_Unknown_File_Format;
+ return FT_THROW( Unknown_File_Format );
dlen = ( header[0x53] << 24 ) |
( header[0x54] << 16 ) |
@@ -1862,7 +1889,7 @@
#define FT_COMPONENT trace_raccess
FT_Memory memory = library->memory;
- FT_Error error = FT_Err_Unknown_File_Format;
+ FT_Error error = FT_ERR( Unknown_File_Format );
int i;
char * file_names[FT_RACCESS_N_RULES];
@@ -1901,7 +1928,7 @@
i, args2.pathname, offsets[i] ));
error = FT_Stream_New( library, &args2, &stream2 );
- if ( is_darwin_vfs && error == FT_Err_Cannot_Open_Stream )
+ if ( is_darwin_vfs && FT_ERR_EQ( error, Cannot_Open_Stream ) )
vfs_rfork_has_no_font = TRUE;
if ( error )
@@ -1930,7 +1957,7 @@
/* Caller (load_mac_face) requires FT_Err_Unknown_File_Format. */
if ( error )
- error = FT_Err_Unknown_File_Format;
+ error = FT_ERR( Unknown_File_Format );
return error;
@@ -1959,7 +1986,7 @@
error = IsMacBinary( library, stream, face_index, aface );
- if ( FT_ERROR_BASE( error ) == FT_Err_Unknown_File_Format )
+ if ( FT_ERR_EQ( error, Unknown_File_Format ) )
{
#undef FT_COMPONENT
@@ -1976,9 +2003,9 @@
}
- if ( ( FT_ERROR_BASE( error ) == FT_Err_Unknown_File_Format ||
- FT_ERROR_BASE( error ) == FT_Err_Invalid_Stream_Operation ) &&
- ( args->flags & FT_OPEN_PATHNAME ) )
+ if ( ( FT_ERR_EQ( error, Unknown_File_Format ) ||
+ FT_ERR_EQ( error, Invalid_Stream_Operation ) ) &&
+ ( args->flags & FT_OPEN_PATHNAME ) )
error = load_face_in_embedded_rfork( library, stream,
face_index, aface, args );
return error;
@@ -2011,7 +2038,7 @@
/* FT_Stream_New() */
if ( ( !aface && face_index >= 0 ) || !args )
- return FT_Err_Invalid_Argument;
+ return FT_THROW( Invalid_Argument );
external_stream = FT_BOOL( ( args->flags & FT_OPEN_STREAM ) &&
args->stream );
@@ -2048,18 +2075,19 @@
goto Success;
}
else
- error = FT_Err_Invalid_Handle;
+ error = FT_THROW( Invalid_Handle );
FT_Stream_Free( stream, external_stream );
goto Fail;
}
else
{
+ error = FT_ERR( Missing_Module );
+
/* check each font driver for an appropriate format */
cur = library->modules;
limit = cur + library->num_modules;
-
for ( ; cur < limit; cur++ )
{
/* not all modules are font drivers, so check... */
@@ -2084,7 +2112,7 @@
#ifdef FT_CONFIG_OPTION_MAC_FONTS
if ( ft_strcmp( cur[0]->clazz->module_name, "truetype" ) == 0 &&
- FT_ERROR_BASE( error ) == FT_Err_Table_Missing )
+ FT_ERR_EQ( error, Table_Missing ) )
{
/* TrueType but essential tables are missing */
if ( FT_Stream_Seek( stream, 0 ) )
@@ -2104,39 +2132,39 @@
}
#endif
- if ( FT_ERROR_BASE( error ) != FT_Err_Unknown_File_Format )
+ if ( FT_ERR_NEQ( error, Unknown_File_Format ) )
goto Fail3;
}
}
- Fail3:
- /* If we are on the mac, and we get an FT_Err_Invalid_Stream_Operation */
- /* it may be because we have an empty data fork, so we need to check */
- /* the resource fork. */
- if ( FT_ERROR_BASE( error ) != FT_Err_Cannot_Open_Stream &&
- FT_ERROR_BASE( error ) != FT_Err_Unknown_File_Format &&
- FT_ERROR_BASE( error ) != FT_Err_Invalid_Stream_Operation )
- goto Fail2;
+ Fail3:
+ /* If we are on the mac, and we get an */
+ /* FT_Err_Invalid_Stream_Operation it may be because we have an */
+ /* empty data fork, so we need to check the resource fork. */
+ if ( FT_ERR_NEQ( error, Cannot_Open_Stream ) &&
+ FT_ERR_NEQ( error, Unknown_File_Format ) &&
+ FT_ERR_NEQ( error, Invalid_Stream_Operation ) )
+ goto Fail2;
#if !defined( FT_MACINTOSH ) && defined( FT_CONFIG_OPTION_MAC_FONTS )
- error = load_mac_face( library, stream, face_index, aface, args );
- if ( !error )
- {
- /* We don't want to go to Success here. We've already done that. */
- /* On the other hand, if we succeeded we still need to close this */
- /* stream (we opened a different stream which extracted the */
- /* interesting information out of this stream here. That stream */
- /* will still be open and the face will point to it). */
- FT_Stream_Free( stream, external_stream );
- return error;
- }
+ error = load_mac_face( library, stream, face_index, aface, args );
+ if ( !error )
+ {
+ /* We don't want to go to Success here. We've already done that. */
+ /* On the other hand, if we succeeded we still need to close this */
+ /* stream (we opened a different stream which extracted the */
+ /* interesting information out of this stream here. That stream */
+ /* will still be open and the face will point to it). */
+ FT_Stream_Free( stream, external_stream );
+ return error;
+ }
- if ( FT_ERROR_BASE( error ) != FT_Err_Unknown_File_Format )
- goto Fail2;
+ if ( FT_ERR_NEQ( error, Unknown_File_Format ) )
+ goto Fail2;
#endif /* !FT_MACINTOSH && FT_CONFIG_OPTION_MAC_FONTS */
/* no driver is able to handle this format */
- error = FT_Err_Unknown_File_Format;
+ error = FT_THROW( Unknown_File_Format );
Fail2:
FT_Stream_Free( stream, external_stream );
@@ -2258,7 +2286,7 @@
/* test for valid `face' delayed to FT_Attach_Stream() */
if ( !filepathname )
- return FT_Err_Invalid_Argument;
+ return FT_THROW( Invalid_Argument );
open.stream = NULL;
open.flags = FT_OPEN_PATHNAME;
@@ -2284,11 +2312,11 @@
/* test for valid `parameters' delayed to FT_Stream_New() */
if ( !face )
- return FT_Err_Invalid_Face_Handle;
+ return FT_THROW( Invalid_Face_Handle );
driver = face->driver;
if ( !driver )
- return FT_Err_Invalid_Driver_Handle;
+ return FT_THROW( Invalid_Driver_Handle );
error = FT_Stream_New( driver->root.library, parameters, &stream );
if ( error )
@@ -2297,7 +2325,7 @@
/* we implement FT_Attach_Stream in each driver through the */
/* `attach_file' interface */
- error = FT_Err_Unimplemented_Feature;
+ error = FT_ERR( Unimplemented_Feature );
clazz = driver->clazz;
if ( clazz->attach_file )
error = clazz->attach_file( face, stream );
@@ -2334,7 +2362,7 @@
FT_ListNode node;
- error = FT_Err_Invalid_Face_Handle;
+ error = FT_ERR( Invalid_Face_Handle );
if ( face && face->driver )
{
face->internal->refcount--;
@@ -2380,13 +2408,13 @@
if ( !face )
- return FT_Err_Invalid_Face_Handle;
+ return FT_THROW( Invalid_Face_Handle );
if ( !asize )
- return FT_Err_Invalid_Size_Handle;
+ return FT_THROW( Invalid_Size_Handle );
if ( !face->driver )
- return FT_Err_Invalid_Driver_Handle;
+ return FT_THROW( Invalid_Driver_Handle );
*asize = 0;
@@ -2438,15 +2466,15 @@
if ( !size )
- return FT_Err_Invalid_Size_Handle;
+ return FT_THROW( Invalid_Size_Handle );
face = size->face;
if ( !face )
- return FT_Err_Invalid_Face_Handle;
+ return FT_THROW( Invalid_Face_Handle );
driver = face->driver;
if ( !driver )
- return FT_Err_Invalid_Driver_Handle;
+ return FT_THROW( Invalid_Driver_Handle );
memory = driver->root.memory;
@@ -2467,7 +2495,7 @@
destroy_size( memory, size, driver );
}
else
- error = FT_Err_Invalid_Size_Handle;
+ error = FT_THROW( Invalid_Size_Handle );
return error;
}
@@ -2486,11 +2514,11 @@
if ( !FT_HAS_FIXED_SIZES( face ) )
- return FT_Err_Invalid_Face_Handle;
+ return FT_THROW( Invalid_Face_Handle );
/* FT_Bitmap_Size doesn't provide enough info... */
if ( req->type != FT_SIZE_REQUEST_TYPE_NOMINAL )
- return FT_Err_Unimplemented_Feature;
+ return FT_THROW( Unimplemented_Feature );
w = FT_REQUEST_WIDTH ( req );
h = FT_REQUEST_HEIGHT( req );
@@ -2513,6 +2541,8 @@
if ( w == FT_PIX_ROUND( bsize->x_ppem ) || ignore_width )
{
+ FT_TRACE3(( "FT_Match_Size: bitmap strike %d matches\n", i ));
+
if ( size_index )
*size_index = (FT_ULong)i;
@@ -2520,7 +2550,7 @@
}
}
- return FT_Err_Invalid_Pixel_Size;
+ return FT_THROW( Invalid_Pixel_Size );
}
@@ -2763,10 +2793,10 @@
if ( !face || !FT_HAS_FIXED_SIZES( face ) )
- return FT_Err_Invalid_Face_Handle;
+ return FT_THROW( Invalid_Face_Handle );
if ( strike_index < 0 || strike_index >= face->num_fixed_sizes )
- return FT_Err_Invalid_Argument;
+ return FT_THROW( Invalid_Argument );
clazz = face->driver->clazz;
@@ -2816,11 +2846,11 @@
if ( !face )
- return FT_Err_Invalid_Face_Handle;
+ return FT_THROW( Invalid_Face_Handle );
if ( !req || req->width < 0 || req->height < 0 ||
req->type >= FT_SIZE_REQUEST_TYPE_MAX )
- return FT_Err_Invalid_Argument;
+ return FT_THROW( Invalid_Argument );
clazz = face->driver->clazz;
@@ -2869,9 +2899,6 @@
if ( error )
return error;
- FT_TRACE3(( "FT_Request_Size: bitmap strike %lu matched\n",
- strike_index ));
-
return FT_Select_Size( face, (FT_Int)strike_index );
}
@@ -2971,10 +2998,10 @@
if ( !face )
- return FT_Err_Invalid_Face_Handle;
+ return FT_THROW( Invalid_Face_Handle );
if ( !akerning )
- return FT_Err_Invalid_Argument;
+ return FT_THROW( Invalid_Argument );
driver = face->driver;
@@ -3030,14 +3057,14 @@
if ( !face )
- return FT_Err_Invalid_Face_Handle;
+ return FT_THROW( Invalid_Face_Handle );
if ( !akerning )
- return FT_Err_Invalid_Argument;
+ return FT_THROW( Invalid_Argument );
FT_FACE_FIND_SERVICE( face, service, KERNING );
if ( !service )
- return FT_Err_Unimplemented_Feature;
+ return FT_THROW( Unimplemented_Feature );
error = service->get_track( face,
point_size,
@@ -3059,10 +3086,10 @@
if ( !face )
- return FT_Err_Invalid_Face_Handle;
+ return FT_THROW( Invalid_Face_Handle );
if ( encoding == FT_ENCODING_NONE )
- return FT_Err_Invalid_Argument;
+ return FT_THROW( Invalid_Argument );
/* FT_ENCODING_UNICODE is special. We try to find the `best' Unicode */
/* charmap available, i.e., one with UCS-4 characters, if possible. */
@@ -3073,7 +3100,7 @@
cur = face->charmaps;
if ( !cur )
- return FT_Err_Invalid_CharMap_Handle;
+ return FT_THROW( Invalid_CharMap_Handle );
limit = cur + face->num_charmaps;
@@ -3095,7 +3122,7 @@
}
}
- return FT_Err_Invalid_Argument;
+ return FT_THROW( Invalid_Argument );
}
@@ -3110,13 +3137,13 @@
if ( !face )
- return FT_Err_Invalid_Face_Handle;
+ return FT_THROW( Invalid_Face_Handle );
cur = face->charmaps;
if ( !cur )
- return FT_Err_Invalid_CharMap_Handle;
+ return FT_THROW( Invalid_CharMap_Handle );
if ( FT_Get_CMap_Format( charmap ) == 14 )
- return FT_Err_Invalid_Argument;
+ return FT_THROW( Invalid_Argument );
limit = cur + face->num_charmaps;
@@ -3137,7 +3164,7 @@
return 0;
}
}
- return FT_Err_Invalid_Argument;
+ return FT_THROW( Invalid_Argument );
}
@@ -3176,7 +3203,7 @@
{
FT_CMap_Class clazz = cmap->clazz;
FT_Face face = cmap->charmap.face;
- FT_Memory memory = FT_FACE_MEMORY(face);
+ FT_Memory memory = FT_FACE_MEMORY( face );
if ( clazz->done )
@@ -3245,7 +3272,7 @@
if ( clazz == NULL || charmap == NULL || charmap->face == NULL )
- return FT_Err_Invalid_Argument;
+ return FT_THROW( Invalid_Argument );
face = charmap->face;
memory = FT_FACE_MEMORY( face );
@@ -3578,7 +3605,7 @@
FT_Pointer buffer,
FT_UInt buffer_max )
{
- FT_Error error = FT_Err_Invalid_Argument;
+ FT_Error error = FT_ERR( Invalid_Argument );
/* clean up buffer */
@@ -3667,11 +3694,11 @@
if ( !face || !FT_IS_SFNT( face ) )
- return FT_Err_Invalid_Face_Handle;
+ return FT_THROW( Invalid_Face_Handle );
FT_FACE_FIND_SERVICE( face, service, SFNT_TABLE );
if ( service == NULL )
- return FT_Err_Unimplemented_Feature;
+ return FT_THROW( Unimplemented_Feature );
return service->load_table( face, tag, offset, buffer, length );
}
@@ -3690,11 +3717,11 @@
if ( !face || !FT_IS_SFNT( face ) )
- return FT_Err_Invalid_Face_Handle;
+ return FT_THROW( Invalid_Face_Handle );
FT_FACE_FIND_SERVICE( face, service, SFNT_TABLE );
if ( service == NULL )
- return FT_Err_Unimplemented_Feature;
+ return FT_THROW( Unimplemented_Feature );
return service->table_info( face, table_index, tag, &offset, length );
}
@@ -3757,11 +3784,11 @@
if ( size == NULL )
- return FT_Err_Invalid_Argument;
+ return FT_THROW( Invalid_Argument );
face = size->face;
if ( face == NULL || face->driver == NULL )
- return FT_Err_Invalid_Argument;
+ return FT_THROW( Invalid_Argument );
/* we don't need anything more complex than that; all size objects */
/* are already listed by the face */
@@ -3953,15 +3980,15 @@
if ( !library )
- return FT_Err_Invalid_Library_Handle;
+ return FT_THROW( Invalid_Library_Handle );
if ( !renderer )
- return FT_Err_Invalid_Argument;
+ return FT_THROW( Invalid_Argument );
node = FT_List_Find( &library->renderers, renderer );
if ( !node )
{
- error = FT_Err_Invalid_Argument;
+ error = FT_THROW( Invalid_Argument );
goto Exit;
}
@@ -4019,12 +4046,12 @@
else
renderer = FT_Lookup_Renderer( library, slot->format, &node );
- error = FT_Err_Unimplemented_Feature;
+ error = FT_ERR( Unimplemented_Feature );
while ( renderer )
{
error = renderer->render( renderer, slot, render_mode, NULL );
- if ( !error ||
- FT_ERROR_BASE( error ) != FT_Err_Cannot_Render_Glyph )
+ if ( !error ||
+ FT_ERR_NEQ( error, Cannot_Render_Glyph ) )
break;
/* FT_Err_Cannot_Render_Glyph is returned if the render mode */
@@ -4044,6 +4071,47 @@
}
}
+#ifdef FT_DEBUG_LEVEL_TRACE
+
+#undef FT_COMPONENT
+#define FT_COMPONENT trace_bitmap
+
+ /* we convert to a single bitmap format for computing the checksum */
+ {
+ FT_Bitmap bitmap;
+ FT_Error err;
+
+
+ FT_Bitmap_New( &bitmap );
+
+ err = FT_Bitmap_Convert( library, &slot->bitmap, &bitmap, 1 );
+ if ( !err )
+ {
+ MD5_CTX ctx;
+ unsigned char md5[16];
+ int i;
+
+
+ MD5_Init( &ctx);
+ MD5_Update( &ctx, bitmap.buffer, bitmap.rows * bitmap.pitch );
+ MD5_Final( md5, &ctx );
+
+ FT_TRACE3(( "MD5 checksum for %dx%d bitmap:\n"
+ " ",
+ bitmap.rows, bitmap.pitch ));
+ for ( i = 0; i < 16; i++ )
+ FT_TRACE3(( "%02X", md5[i] ));
+ FT_TRACE3(( "\n" ));
+ }
+
+ FT_Bitmap_Done( library, &bitmap );
+ }
+
+#undef FT_COMPONENT
+#define FT_COMPONENT trace_objs
+
+#endif /* FT_DEBUG_LEVEL_TRACE */
+
return error;
}
@@ -4058,7 +4126,7 @@
if ( !slot || !slot->face )
- return FT_Err_Invalid_Argument;
+ return FT_THROW( Invalid_Argument );
library = FT_FACE_LIBRARY( slot->face );
@@ -4138,14 +4206,14 @@
FREETYPE_MINOR )
if ( !library )
- return FT_Err_Invalid_Library_Handle;
+ return FT_THROW( Invalid_Library_Handle );
if ( !clazz )
- return FT_Err_Invalid_Argument;
+ return FT_THROW( Invalid_Argument );
/* check freetype version */
if ( clazz->module_requires > FREETYPE_VER_FIXED )
- return FT_Err_Invalid_Version;
+ return FT_THROW( Invalid_Version );
/* look for a module with the same name in the library's table */
for ( nn = 0; nn < library->num_modules; nn++ )
@@ -4155,7 +4223,7 @@
{
/* this installed module has the same name, compare their versions */
if ( clazz->module_version <= module->clazz->module_version )
- return FT_Err_Lower_Module_Version;
+ return FT_THROW( Lower_Module_Version );
/* remove the module from our list, then exit the loop to replace */
/* it by our new version.. */
@@ -4169,7 +4237,7 @@
if ( library->num_modules >= FT_MAX_MODULES )
{
- error = FT_Err_Too_Many_Drivers;
+ error = FT_THROW( Too_Many_Drivers );
goto Exit;
}
@@ -4301,19 +4369,18 @@
{
FT_Pointer result = NULL;
+
if ( module )
{
FT_ASSERT( module->clazz && module->clazz->get_interface );
- /* first, look for the service in the module
- */
+ /* first, look for the service in the module */
if ( module->clazz->get_interface )
result = module->clazz->get_interface( module, service_id );
if ( result == NULL )
{
- /* we didn't find it, look in all other modules then
- */
+ /* we didn't find it, look in all other modules then */
FT_Library library = module->library;
FT_Module* cur = library->modules;
FT_Module* limit = cur + library->num_modules;
@@ -4349,7 +4416,7 @@
/* try to find the module from the table, then remove it from there */
if ( !library )
- return FT_Err_Invalid_Library_Handle;
+ return FT_THROW( Invalid_Library_Handle );
if ( module )
{
@@ -4378,7 +4445,119 @@
}
}
}
- return FT_Err_Invalid_Driver_Handle;
+ return FT_THROW( Invalid_Driver_Handle );
+ }
+
+
+ FT_Error
+ ft_property_do( FT_Library library,
+ const FT_String* module_name,
+ const FT_String* property_name,
+ void* value,
+ FT_Bool set )
+ {
+ FT_Module* cur;
+ FT_Module* limit;
+ FT_Module_Interface interface;
+
+ FT_Service_Properties service;
+
+#ifdef FT_DEBUG_LEVEL_ERROR
+ const FT_String* set_name = "FT_Property_Set";
+ const FT_String* get_name = "FT_Property_Get";
+ const FT_String* func_name = set ? set_name : get_name;
+#endif
+
+ FT_Bool missing_func;
+
+
+ if ( !library )
+ return FT_THROW( Invalid_Library_Handle );
+
+ if ( !module_name || !property_name || !value )
+ return FT_THROW( Invalid_Argument );
+
+ cur = library->modules;
+ limit = cur + library->num_modules;
+
+ /* search module */
+ for ( ; cur < limit; cur++ )
+ if ( !ft_strcmp( cur[0]->clazz->module_name, module_name ) )
+ break;
+
+ if ( cur == limit )
+ {
+ FT_ERROR(( "%s: can't find module `%s'\n",
+ func_name, module_name ));
+ return FT_THROW( Missing_Module );
+ }
+
+ /* check whether we have a service interface */
+ if ( !cur[0]->clazz->get_interface )
+ {
+ FT_ERROR(( "%s: module `%s' doesn't support properties\n",
+ func_name, module_name ));
+ return FT_THROW( Unimplemented_Feature );
+ }
+
+ /* search property service */
+ interface = cur[0]->clazz->get_interface( cur[0],
+ FT_SERVICE_ID_PROPERTIES );
+ if ( !interface )
+ {
+ FT_ERROR(( "%s: module `%s' doesn't support properties\n",
+ func_name, module_name ));
+ return FT_THROW( Unimplemented_Feature );
+ }
+
+ service = (FT_Service_Properties)interface;
+
+ if ( set )
+ missing_func = !service->set_property;
+ else
+ missing_func = !service->get_property;
+
+ if ( missing_func )
+ {
+ FT_ERROR(( "%s: property service of module `%s' is broken\n",
+ func_name, module_name ));
+ return FT_THROW( Unimplemented_Feature );
+ }
+
+ return set ? service->set_property( cur[0], property_name, value )
+ : service->get_property( cur[0], property_name, value );
+ }
+
+
+ /* documentation is in ftmodapi.h */
+
+ FT_EXPORT_DEF( FT_Error )
+ FT_Property_Set( FT_Library library,
+ const FT_String* module_name,
+ const FT_String* property_name,
+ const void* value )
+ {
+ return ft_property_do( library,
+ module_name,
+ property_name,
+ (void*)value,
+ TRUE );
+ }
+
+
+ /* documentation is in ftmodapi.h */
+
+ FT_EXPORT_DEF( FT_Error )
+ FT_Property_Get( FT_Library library,
+ const FT_String* module_name,
+ const FT_String* property_name,
+ void* value )
+ {
+ return ft_property_do( library,
+ module_name,
+ property_name,
+ value,
+ FALSE );
}
@@ -4417,7 +4596,7 @@
if ( !memory )
- return FT_Err_Invalid_Argument;
+ return FT_THROW( Invalid_Argument );
#ifdef FT_DEBUG_LEVEL_ERROR
/* init debugging support */
@@ -4504,7 +4683,7 @@
if ( !library )
- return FT_Err_Invalid_Library_Handle;
+ return FT_THROW( Invalid_Library_Handle );
library->refcount--;
if ( library->refcount > 0 )
@@ -4651,70 +4830,6 @@
}
-#ifdef FT_CONFIG_OPTION_OLD_INTERNALS
-
- FT_BASE_DEF( FT_Error )
- ft_stub_set_char_sizes( FT_Size size,
- FT_F26Dot6 width,
- FT_F26Dot6 height,
- FT_UInt horz_res,
- FT_UInt vert_res )
- {
- FT_Size_RequestRec req;
- FT_Driver driver = size->face->driver;
-
-
- if ( driver->clazz->request_size )
- {
- req.type = FT_SIZE_REQUEST_TYPE_NOMINAL;
- req.width = width;
- req.height = height;
-
- if ( horz_res == 0 )
- horz_res = vert_res;
-
- if ( vert_res == 0 )
- vert_res = horz_res;
-
- if ( horz_res == 0 )
- horz_res = vert_res = 72;
-
- req.horiResolution = horz_res;
- req.vertResolution = vert_res;
-
- return driver->clazz->request_size( size, &req );
- }
-
- return 0;
- }
-
-
- FT_BASE_DEF( FT_Error )
- ft_stub_set_pixel_sizes( FT_Size size,
- FT_UInt width,
- FT_UInt height )
- {
- FT_Size_RequestRec req;
- FT_Driver driver = size->face->driver;
-
-
- if ( driver->clazz->request_size )
- {
- req.type = FT_SIZE_REQUEST_TYPE_NOMINAL;
- req.width = width << 6;
- req.height = height << 6;
- req.horiResolution = 0;
- req.vertResolution = 0;
-
- return driver->clazz->request_size( size, &req );
- }
-
- return 0;
- }
-
-#endif /* FT_CONFIG_OPTION_OLD_INTERNALS */
-
-
/* documentation is in freetype.h */
FT_EXPORT_DEF( FT_Error )
@@ -4726,7 +4841,7 @@
FT_Int *p_arg2,
FT_Matrix *p_transform )
{
- FT_Error error = FT_Err_Invalid_Argument;
+ FT_Error error = FT_ERR( Invalid_Argument );
if ( glyph &&
diff --git a/src/base/ftoutln.c b/src/base/ftoutln.c
index 9ae276d..54ca5cd 100644
--- a/src/base/ftoutln.c
+++ b/src/base/ftoutln.c
@@ -4,7 +4,7 @@
/* */
/* FreeType outline management (body). */
/* */
-/* Copyright 1996-2008, 2010, 2012 by */
+/* Copyright 1996-2008, 2010, 2012-2013 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -26,6 +26,7 @@
#include <ft2build.h>
#include FT_OUTLINE_H
#include FT_INTERNAL_OBJECTS_H
+#include FT_INTERNAL_CALC_H
#include FT_INTERNAL_DEBUG_H
#include FT_TRIGONOMETRY_H
@@ -73,7 +74,7 @@
if ( !outline || !func_interface )
- return FT_Err_Invalid_Argument;
+ return FT_THROW( Invalid_Argument );
shift = func_interface->shift;
delta = func_interface->delta;
@@ -286,7 +287,7 @@
return error;
Invalid_Outline:
- return FT_Err_Invalid_Outline;
+ return FT_THROW( Invalid_Outline );
}
@@ -300,10 +301,17 @@
if ( !anoutline || !memory )
- return FT_Err_Invalid_Argument;
+ return FT_THROW( Invalid_Argument );
*anoutline = null_outline;
+ if ( numContours < 0 ||
+ (FT_UInt)numContours > numPoints )
+ return FT_THROW( Invalid_Argument );
+
+ if ( numPoints > FT_OUTLINE_POINTS_MAX )
+ return FT_THROW( Array_Too_Large );
+
if ( FT_NEW_ARRAY( anoutline->points, numPoints ) ||
FT_NEW_ARRAY( anoutline->tags, numPoints ) ||
FT_NEW_ARRAY( anoutline->contours, numContours ) )
@@ -332,7 +340,7 @@
FT_Outline *anoutline )
{
if ( !library )
- return FT_Err_Invalid_Library_Handle;
+ return FT_THROW( Invalid_Library_Handle );
return FT_Outline_New_Internal( library->memory, numPoints,
numContours, anoutline );
@@ -380,7 +388,7 @@
}
Bad:
- return FT_Err_Invalid_Argument;
+ return FT_THROW( Invalid_Argument );
}
@@ -396,7 +404,7 @@
if ( !source || !target ||
source->n_points != target->n_points ||
source->n_contours != target->n_contours )
- return FT_Err_Invalid_Argument;
+ return FT_THROW( Invalid_Argument );
if ( source == target )
return FT_Err_Ok;
@@ -435,7 +443,7 @@
return FT_Err_Ok;
}
else
- return FT_Err_Invalid_Argument;
+ return FT_THROW( Invalid_Argument );
}
@@ -448,7 +456,7 @@
/* check for valid `outline' in FT_Outline_Done_Internal() */
if ( !library )
- return FT_Err_Invalid_Library_Handle;
+ return FT_THROW( Invalid_Library_Handle );
return FT_Outline_Done_Internal( library->memory, outline );
}
@@ -602,21 +610,21 @@
if ( !library )
- return FT_Err_Invalid_Library_Handle;
+ return FT_THROW( Invalid_Library_Handle );
if ( !outline || !params )
- return FT_Err_Invalid_Argument;
+ return FT_THROW( Invalid_Argument );
renderer = library->cur_renderer;
node = library->renderers.head;
params->source = (void*)outline;
- error = FT_Err_Cannot_Render_Glyph;
+ error = FT_ERR( Cannot_Render_Glyph );
while ( renderer )
{
error = renderer->raster_render( renderer->raster, params );
- if ( !error || FT_ERROR_BASE( error ) != FT_Err_Cannot_Render_Glyph )
+ if ( !error || FT_ERR_NEQ( error, Cannot_Render_Glyph ) )
break;
/* FT_Err_Cannot_Render_Glyph is returned if the render mode */
@@ -650,7 +658,7 @@
if ( !abitmap )
- return FT_Err_Invalid_Argument;
+ return FT_THROW( Invalid_Argument );
/* other checks are delayed to FT_Outline_Render() */
@@ -882,85 +890,126 @@
FT_Outline_Embolden( FT_Outline* outline,
FT_Pos strength )
{
+ return FT_Outline_EmboldenXY( outline, strength, strength );
+ }
+
+
+ /* documentation is in ftoutln.h */
+
+ FT_EXPORT_DEF( FT_Error )
+ FT_Outline_EmboldenXY( FT_Outline* outline,
+ FT_Pos xstrength,
+ FT_Pos ystrength )
+ {
FT_Vector* points;
FT_Vector v_prev, v_first, v_next, v_cur;
- FT_Angle rotate, angle_in, angle_out;
FT_Int c, n, first;
FT_Int orientation;
if ( !outline )
- return FT_Err_Invalid_Argument;
+ return FT_THROW( Invalid_Argument );
- strength /= 2;
- if ( strength == 0 )
+ xstrength /= 2;
+ ystrength /= 2;
+ if ( xstrength == 0 && ystrength == 0 )
return FT_Err_Ok;
orientation = FT_Outline_Get_Orientation( outline );
if ( orientation == FT_ORIENTATION_NONE )
{
if ( outline->n_contours )
- return FT_Err_Invalid_Argument;
+ return FT_THROW( Invalid_Argument );
else
return FT_Err_Ok;
}
- if ( orientation == FT_ORIENTATION_TRUETYPE )
- rotate = -FT_ANGLE_PI2;
- else
- rotate = FT_ANGLE_PI2;
-
points = outline->points;
first = 0;
for ( c = 0; c < outline->n_contours; c++ )
{
- int last = outline->contours[c];
+ FT_Vector in, out, shift;
+ FT_Fixed l_in, l_out, l, q, d;
+ int last = outline->contours[c];
v_first = points[first];
v_prev = points[last];
v_cur = v_first;
- for ( n = first; n <= last; n++ )
+ /* compute incoming normalized vector */
+ in.x = v_cur.x - v_prev.x;
+ in.y = v_cur.y - v_prev.y;
+ l_in = FT_Vector_Length( &in );
+ if ( l_in )
{
- FT_Vector in, out;
- FT_Angle angle_diff;
- FT_Pos d;
- FT_Fixed scale;
-
+ in.x = FT_DivFix( in.x, l_in );
+ in.y = FT_DivFix( in.y, l_in );
+ }
+ for ( n = first; n <= last; n++ )
+ {
if ( n < last )
v_next = points[n + 1];
else
v_next = v_first;
- /* compute the in and out vectors */
- in.x = v_cur.x - v_prev.x;
- in.y = v_cur.y - v_prev.y;
-
+ /* compute outgoing normalized vector */
out.x = v_next.x - v_cur.x;
out.y = v_next.y - v_cur.y;
+ l_out = FT_Vector_Length( &out );
+ if ( l_out )
+ {
+ out.x = FT_DivFix( out.x, l_out );
+ out.y = FT_DivFix( out.y, l_out );
+ }
- angle_in = FT_Atan2( in.x, in.y );
- angle_out = FT_Atan2( out.x, out.y );
- angle_diff = FT_Angle_Diff( angle_in, angle_out );
- scale = FT_Cos( angle_diff / 2 );
+ d = FT_MulFix( in.x, out.x ) + FT_MulFix( in.y, out.y );
- if ( scale < 0x4000L && scale > -0x4000L )
- in.x = in.y = 0;
- else
+ /* shift only if turn is less than ~160 degrees */
+ if ( d > -0xF000L )
{
- d = FT_DivFix( strength, scale );
+ d = d + 0x10000L;
- FT_Vector_From_Polar( &in, d, angle_in + angle_diff / 2 - rotate );
+ /* shift components are aligned along lateral bisector */
+ /* and directed according to the outline orientation. */
+ shift.x = in.y + out.y;
+ shift.y = in.x + out.x;
+
+ if ( orientation == FT_ORIENTATION_TRUETYPE )
+ shift.x = -shift.x;
+ else
+ shift.y = -shift.y;
+
+ /* restrict shift magnitude to better handle collapsing segments */
+ q = FT_MulFix( out.x, in.y ) - FT_MulFix( out.y, in.x );
+ if ( orientation == FT_ORIENTATION_TRUETYPE )
+ q = -q;
+
+ l = FT_MIN( l_in, l_out );
+
+ /* non-strict inequalities avoid divide-by-zero when q == l == 0 */
+ if ( FT_MulFix( xstrength, q ) <= FT_MulFix( d, l ) )
+ shift.x = FT_MulDiv( shift.x, xstrength, d );
+ else
+ shift.x = FT_MulDiv( shift.x, l, q );
+
+
+ if ( FT_MulFix( ystrength, q ) <= FT_MulFix( d, l ) )
+ shift.y = FT_MulDiv( shift.y, ystrength, d );
+ else
+ shift.y = FT_MulDiv( shift.y, l, q );
}
+ else
+ shift.x = shift.y = 0;
- outline->points[n].x = v_cur.x + strength + in.x;
- outline->points[n].y = v_cur.y + strength + in.y;
+ outline->points[n].x = v_cur.x + xstrength + shift.x;
+ outline->points[n].y = v_cur.y + ystrength + shift.y;
- v_prev = v_cur;
- v_cur = v_next;
+ in = out;
+ l_in = l_out;
+ v_cur = v_next;
}
first = last + 1;
@@ -975,23 +1024,12 @@
FT_EXPORT_DEF( FT_Orientation )
FT_Outline_Get_Orientation( FT_Outline* outline )
{
- FT_Pos xmin = 32768L;
- FT_Pos xmin_ymin = 32768L;
- FT_Pos xmin_ymax = -32768L;
- FT_Vector* xmin_first = NULL;
- FT_Vector* xmin_last = NULL;
-
- short* contour;
-
- FT_Vector* first;
- FT_Vector* last;
- FT_Vector* prev;
- FT_Vector* point;
-
- int i;
- FT_Pos ray_y[3];
- FT_Orientation result[3] =
- { FT_ORIENTATION_NONE, FT_ORIENTATION_NONE, FT_ORIENTATION_NONE };
+ FT_BBox cbox;
+ FT_Int xshift, yshift;
+ FT_Vector* points;
+ FT_Vector v_prev, v_cur;
+ FT_Int c, n, first;
+ FT_Pos area = 0;
if ( !outline || outline->n_points <= 0 )
@@ -1002,127 +1040,41 @@
/* cubic or quadratic curves, this test deals with the polygon */
/* only which is spanned up by the control points. */
- first = outline->points;
- for ( contour = outline->contours;
- contour < outline->contours + outline->n_contours;
- contour++, first = last + 1 )
- {
- FT_Pos contour_xmin = 32768L;
- FT_Pos contour_xmax = -32768L;
- FT_Pos contour_ymin = 32768L;
- FT_Pos contour_ymax = -32768L;
-
-
- last = outline->points + *contour;
+ FT_Outline_Get_CBox( outline, &cbox );
- /* skip degenerate contours */
- if ( last < first + 2 )
- continue;
-
- for ( point = first; point <= last; ++point )
- {
- if ( point->x < contour_xmin )
- contour_xmin = point->x;
-
- if ( point->x > contour_xmax )
- contour_xmax = point->x;
-
- if ( point->y < contour_ymin )
- contour_ymin = point->y;
-
- if ( point->y > contour_ymax )
- contour_ymax = point->y;
- }
-
- if ( contour_xmin < xmin &&
- contour_xmin != contour_xmax &&
- contour_ymin != contour_ymax )
- {
- xmin = contour_xmin;
- xmin_ymin = contour_ymin;
- xmin_ymax = contour_ymax;
- xmin_first = first;
- xmin_last = last;
- }
- }
+ xshift = FT_MSB( FT_ABS( cbox.xMax ) | FT_ABS( cbox.xMin ) ) - 14;
+ xshift = FT_MAX( xshift, 0 );
- if ( xmin == 32768L )
- return FT_ORIENTATION_TRUETYPE;
+ yshift = FT_MSB( cbox.yMax - cbox.yMin ) - 14;
+ yshift = FT_MAX( yshift, 0 );
- ray_y[0] = ( xmin_ymin * 3 + xmin_ymax ) >> 2;
- ray_y[1] = ( xmin_ymin + xmin_ymax ) >> 1;
- ray_y[2] = ( xmin_ymin + xmin_ymax * 3 ) >> 2;
+ points = outline->points;
- for ( i = 0; i < 3; i++ )
+ first = 0;
+ for ( c = 0; c < outline->n_contours; c++ )
{
- FT_Pos left_x;
- FT_Pos right_x;
- FT_Vector* left1;
- FT_Vector* left2;
- FT_Vector* right1;
- FT_Vector* right2;
-
+ FT_Int last = outline->contours[c];
- RedoRay:
- left_x = 32768L;
- right_x = -32768L;
- left1 = left2 = right1 = right2 = NULL;
+ v_prev = points[last];
- prev = xmin_last;
- for ( point = xmin_first; point <= xmin_last; prev = point, ++point )
+ for ( n = first; n <= last; n++ )
{
- FT_Pos tmp_x;
-
-
- if ( point->y == ray_y[i] || prev->y == ray_y[i] )
- {
- ray_y[i]++;
- goto RedoRay;
- }
-
- if ( ( point->y < ray_y[i] && prev->y < ray_y[i] ) ||
- ( point->y > ray_y[i] && prev->y > ray_y[i] ) )
- continue;
-
- tmp_x = FT_MulDiv( point->x - prev->x,
- ray_y[i] - prev->y,
- point->y - prev->y ) + prev->x;
-
- if ( tmp_x < left_x )
- {
- left_x = tmp_x;
- left1 = prev;
- left2 = point;
- }
-
- if ( tmp_x > right_x )
- {
- right_x = tmp_x;
- right1 = prev;
- right2 = point;
- }
+ v_cur = points[n];
+ area += ( ( v_cur.y - v_prev.y ) >> yshift ) *
+ ( ( v_cur.x + v_prev.x ) >> xshift );
+ v_prev = v_cur;
}
- if ( left1 && right1 )
- {
- if ( left1->y < left2->y && right1->y > right2->y )
- result[i] = FT_ORIENTATION_TRUETYPE;
- else if ( left1->y > left2->y && right1->y < right2->y )
- result[i] = FT_ORIENTATION_POSTSCRIPT;
- else
- result[i] = FT_ORIENTATION_NONE;
- }
+ first = last + 1;
}
- if ( result[0] != FT_ORIENTATION_NONE &&
- ( result[0] == result[1] || result[0] == result[2] ) )
- return result[0];
-
- if ( result[1] != FT_ORIENTATION_NONE && result[1] == result[2] )
- return result[1];
-
- return FT_ORIENTATION_TRUETYPE;
+ if ( area > 0 )
+ return FT_ORIENTATION_POSTSCRIPT;
+ else if ( area < 0 )
+ return FT_ORIENTATION_TRUETYPE;
+ else
+ return FT_ORIENTATION_NONE;
}
diff --git a/src/base/ftpic.c b/src/base/ftpic.c
index b74e90d..1c87101 100644
--- a/src/base/ftpic.c
+++ b/src/base/ftpic.c
@@ -29,7 +29,8 @@
ft_pic_container_init( FT_Library library )
{
FT_PIC_Container* pic_container = &library->pic_container;
- FT_Error error = FT_Err_Ok;
+ FT_Error error = FT_Err_Ok;
+
FT_MEM_SET( pic_container, 0, sizeof ( *pic_container ) );
diff --git a/src/base/ftrfork.c b/src/base/ftrfork.c
index 01d8625..8049117 100644
--- a/src/base/ftrfork.c
+++ b/src/base/ftrfork.c
@@ -4,7 +4,7 @@
/* */
/* Embedded resource forks accessor (body). */
/* */
-/* Copyright 2004, 2005, 2006, 2007, 2008, 2009, 2010 by */
+/* Copyright 2004-2010, 2013 by */
/* Masatake YAMATO and Redhat K.K. */
/* */
/* FT_Raccess_Get_HeaderInfo() and raccess_guess_darwin_hfsplus() are */
@@ -86,7 +86,7 @@
/* map_len = head[12] .. head[15] */
if ( *rdata_pos + rdata_len != map_pos || map_pos == rfork_offset )
- return FT_Err_Unknown_File_Format;
+ return FT_THROW( Unknown_File_Format );
error = FT_Stream_Seek( stream, map_pos );
if ( error )
@@ -108,7 +108,7 @@
allmatch = 0;
}
if ( !allzeros && !allmatch )
- return FT_Err_Unknown_File_Format;
+ return FT_THROW( Unknown_File_Format );
/* If we have reached this point then it is probably a mac resource */
/* file. Now, does it contain any interesting resources? */
@@ -121,7 +121,7 @@
if ( FT_READ_USHORT( type_list ) )
return error;
if ( type_list == -1 )
- return FT_Err_Unknown_File_Format;
+ return FT_THROW( Unknown_File_Format );
error = FT_Stream_Seek( stream, map_pos + type_list );
if ( error )
@@ -233,7 +233,7 @@
}
}
- return FT_Err_Cannot_Open_Resource;
+ return FT_THROW( Cannot_Open_Resource );
}
@@ -362,7 +362,7 @@
FT_Long *offsets,
FT_Error *errors )
{
- FT_Long i;
+ FT_Int i;
for ( i = 0; i < FT_RACCESS_N_RULES; i++ )
@@ -435,7 +435,7 @@
*result_file_name = NULL;
if ( NULL == stream )
- return FT_Err_Cannot_Open_Stream;
+ return FT_THROW( Cannot_Open_Stream );
return raccess_guess_apple_generic( library, stream, base_file_name,
magic, result_offset );
@@ -457,7 +457,7 @@
*result_file_name = NULL;
if ( NULL == stream )
- return FT_Err_Cannot_Open_Stream;
+ return FT_THROW( Cannot_Open_Stream );
return raccess_guess_apple_generic( library, stream, base_file_name,
magic, result_offset );
@@ -481,7 +481,7 @@
memory = library->memory;
newpath = raccess_make_file_name( memory, base_file_name, "._" );
if ( !newpath )
- return FT_Err_Out_Of_Memory;
+ return FT_THROW( Out_Of_Memory );
error = raccess_guess_linux_double_from_file_name( library, newpath,
result_offset );
@@ -507,7 +507,7 @@
FT_Error error;
char* newpath = NULL;
FT_Memory memory;
- FT_Long base_file_len = ft_strlen( base_file_name );
+ FT_Long base_file_len = (FT_Long)ft_strlen( base_file_name );
FT_UNUSED( stream );
@@ -515,7 +515,7 @@
memory = library->memory;
if ( base_file_len + 6 > FT_INT_MAX )
- return FT_Err_Array_Too_Large;
+ return FT_THROW( Array_Too_Large );
if ( FT_ALLOC( newpath, base_file_len + 6 ) )
return error;
@@ -543,7 +543,7 @@
FT_Error error;
char* newpath = NULL;
FT_Memory memory;
- FT_Long base_file_len = ft_strlen( base_file_name );
+ FT_Long base_file_len = (FT_Long)ft_strlen( base_file_name );
FT_UNUSED( stream );
@@ -551,7 +551,7 @@
memory = library->memory;
if ( base_file_len + 18 > FT_INT_MAX )
- return FT_Err_Array_Too_Large;
+ return FT_THROW( Array_Too_Large );
if ( FT_ALLOC( newpath, base_file_len + 18 ) )
return error;
@@ -584,7 +584,7 @@
newpath = raccess_make_file_name( memory, base_file_name,
"resource.frk/" );
if ( !newpath )
- return FT_Err_Out_Of_Memory;
+ return FT_THROW( Out_Of_Memory );
*result_file_name = newpath;
*result_offset = 0;
@@ -610,7 +610,7 @@
newpath = raccess_make_file_name( memory, base_file_name, ".resource/" );
if ( !newpath )
- return FT_Err_Out_Of_Memory;
+ return FT_THROW( Out_Of_Memory );
*result_file_name = newpath;
*result_offset = 0;
@@ -637,7 +637,7 @@
newpath = raccess_make_file_name( memory, base_file_name, "%" );
if ( !newpath )
- return FT_Err_Out_Of_Memory;
+ return FT_THROW( Out_Of_Memory );
error = raccess_guess_linux_double_from_file_name( library, newpath,
result_offset );
@@ -669,7 +669,7 @@
newpath = raccess_make_file_name( memory, base_file_name,
".AppleDouble/" );
if ( !newpath )
- return FT_Err_Out_Of_Memory;
+ return FT_THROW( Out_Of_Memory );
error = raccess_guess_linux_double_from_file_name( library, newpath,
result_offset );
@@ -708,7 +708,7 @@
if ( FT_READ_LONG( magic_from_stream ) )
return error;
if ( magic_from_stream != magic )
- return FT_Err_Unknown_File_Format;
+ return FT_THROW( Unknown_File_Format );
if ( FT_READ_LONG( version_number ) )
return error;
@@ -721,7 +721,7 @@
if ( FT_READ_USHORT( n_of_entries ) )
return error;
if ( n_of_entries == 0 )
- return FT_Err_Unknown_File_Format;
+ return FT_THROW( Unknown_File_Format );
for ( i = 0; i < n_of_entries; i++ )
{
@@ -744,7 +744,7 @@
}
}
- return FT_Err_Unknown_File_Format;
+ return FT_THROW( Unknown_File_Format );
}
@@ -827,7 +827,7 @@
FT_Long *offsets,
FT_Error *errors )
{
- int i;
+ FT_Int i;
FT_UNUSED( library );
FT_UNUSED( stream );
@@ -838,7 +838,7 @@
{
new_names[i] = NULL;
offsets[i] = 0;
- errors[i] = FT_Err_Unimplemented_Feature;
+ errors[i] = FT_ERR( Unimplemented_Feature );
}
}
diff --git a/src/base/ftsnames.c b/src/base/ftsnames.c
index 3447888..260e91c 100644
--- a/src/base/ftsnames.c
+++ b/src/base/ftsnames.c
@@ -44,7 +44,7 @@
FT_UInt idx,
FT_SfntName *aname )
{
- FT_Error error = FT_Err_Invalid_Argument;
+ FT_Error error = FT_ERR( Invalid_Argument );
if ( aname && face && FT_IS_SFNT( face ) )
diff --git a/src/base/ftstream.c b/src/base/ftstream.c
index fc2868e..d965333 100644
--- a/src/base/ftstream.c
+++ b/src/base/ftstream.c
@@ -4,7 +4,7 @@
/* */
/* I/O stream support (body). */
/* */
-/* Copyright 2000-2002, 2004-2006, 2008-2011 by */
+/* Copyright 2000-2002, 2004-2006, 2008-2011, 2013 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -68,7 +68,7 @@
" invalid i/o; pos = 0x%lx, size = 0x%lx\n",
pos, stream->size ));
- error = FT_Err_Invalid_Stream_Operation;
+ error = FT_THROW( Invalid_Stream_Operation );
}
}
/* note that seeking to the first position after the file is valid */
@@ -78,7 +78,7 @@
" invalid i/o; pos = 0x%lx, size = 0x%lx\n",
pos, stream->size ));
- error = FT_Err_Invalid_Stream_Operation;
+ error = FT_THROW( Invalid_Stream_Operation );
}
if ( !error )
@@ -93,7 +93,7 @@
FT_Long distance )
{
if ( distance < 0 )
- return FT_Err_Invalid_Stream_Operation;
+ return FT_THROW( Invalid_Stream_Operation );
return FT_Stream_Seek( stream, (FT_ULong)( stream->pos + distance ) );
}
@@ -131,7 +131,7 @@
" invalid i/o; pos = 0x%lx, size = 0x%lx\n",
pos, stream->size ));
- return FT_Err_Invalid_Stream_Operation;
+ return FT_THROW( Invalid_Stream_Operation );
}
if ( stream->read )
@@ -153,7 +153,7 @@
" invalid read; expected %lu bytes, got %lu\n",
count, read_bytes ));
- error = FT_Err_Invalid_Stream_Operation;
+ error = FT_THROW( Invalid_Stream_Operation );
}
return error;
@@ -254,7 +254,7 @@
" frame size (%lu) larger than stream size (%lu)\n",
count, stream->size ));
- error = FT_Err_Invalid_Stream_Operation;
+ error = FT_THROW( Invalid_Stream_Operation );
goto Exit;
}
@@ -277,7 +277,7 @@
count, read_bytes ));
FT_FREE( stream->base );
- error = FT_Err_Invalid_Stream_Operation;
+ error = FT_THROW( Invalid_Stream_Operation );
}
stream->cursor = stream->base;
stream->limit = stream->cursor + count;
@@ -293,7 +293,7 @@
" invalid i/o; pos = 0x%lx, count = %lu, size = 0x%lx\n",
stream->pos, count, stream->size ));
- error = FT_Err_Invalid_Stream_Operation;
+ error = FT_THROW( Invalid_Stream_Operation );
goto Exit;
}
@@ -474,7 +474,7 @@
return result;
Fail:
- *error = FT_Err_Invalid_Stream_Operation;
+ *error = FT_THROW( Invalid_Stream_Operation );
FT_ERROR(( "FT_Stream_ReadChar:"
" invalid i/o; pos = 0x%lx, size = 0x%lx\n",
stream->pos, stream->size ));
@@ -521,7 +521,7 @@
return result;
Fail:
- *error = FT_Err_Invalid_Stream_Operation;
+ *error = FT_THROW( Invalid_Stream_Operation );
FT_ERROR(( "FT_Stream_ReadUShort:"
" invalid i/o; pos = 0x%lx, size = 0x%lx\n",
stream->pos, stream->size ));
@@ -568,7 +568,7 @@
return result;
Fail:
- *error = FT_Err_Invalid_Stream_Operation;
+ *error = FT_THROW( Invalid_Stream_Operation );
FT_ERROR(( "FT_Stream_ReadUShortLE:"
" invalid i/o; pos = 0x%lx, size = 0x%lx\n",
stream->pos, stream->size ));
@@ -615,7 +615,7 @@
return result;
Fail:
- *error = FT_Err_Invalid_Stream_Operation;
+ *error = FT_THROW( Invalid_Stream_Operation );
FT_ERROR(( "FT_Stream_ReadUOffset:"
" invalid i/o; pos = 0x%lx, size = 0x%lx\n",
stream->pos, stream->size ));
@@ -662,7 +662,7 @@
return result;
Fail:
- *error = FT_Err_Invalid_Stream_Operation;
+ *error = FT_THROW( Invalid_Stream_Operation );
FT_ERROR(( "FT_Stream_ReadULong:"
" invalid i/o; pos = 0x%lx, size = 0x%lx\n",
stream->pos, stream->size ));
@@ -709,7 +709,7 @@
return result;
Fail:
- *error = FT_Err_Invalid_Stream_Operation;
+ *error = FT_THROW( Invalid_Stream_Operation );
FT_ERROR(( "FT_Stream_ReadULongLE:"
" invalid i/o; pos = 0x%lx, size = 0x%lx\n",
stream->pos, stream->size ));
@@ -727,8 +727,9 @@
FT_Bool frame_accessed = 0;
FT_Byte* cursor;
+
if ( !fields || !stream )
- return FT_Err_Invalid_Argument;
+ return FT_THROW( Invalid_Argument );
cursor = stream->cursor;
@@ -760,7 +761,7 @@
if ( cursor + len > stream->limit )
{
- error = FT_Err_Invalid_Stream_Operation;
+ error = FT_THROW( Invalid_Stream_Operation );
goto Exit;
}
@@ -776,43 +777,43 @@
case ft_frame_byte:
case ft_frame_schar: /* read a single byte */
- value = FT_NEXT_BYTE(cursor);
+ value = FT_NEXT_BYTE( cursor );
sign_shift = 24;
break;
case ft_frame_short_be:
case ft_frame_ushort_be: /* read a 2-byte big-endian short */
- value = FT_NEXT_USHORT(cursor);
+ value = FT_NEXT_USHORT( cursor) ;
sign_shift = 16;
break;
case ft_frame_short_le:
case ft_frame_ushort_le: /* read a 2-byte little-endian short */
- value = FT_NEXT_USHORT_LE(cursor);
+ value = FT_NEXT_USHORT_LE( cursor );
sign_shift = 16;
break;
case ft_frame_long_be:
case ft_frame_ulong_be: /* read a 4-byte big-endian long */
- value = FT_NEXT_ULONG(cursor);
+ value = FT_NEXT_ULONG( cursor );
sign_shift = 0;
break;
case ft_frame_long_le:
case ft_frame_ulong_le: /* read a 4-byte little-endian long */
- value = FT_NEXT_ULONG_LE(cursor);
+ value = FT_NEXT_ULONG_LE( cursor );
sign_shift = 0;
break;
case ft_frame_off3_be:
case ft_frame_uoff3_be: /* read a 3-byte big-endian long */
- value = FT_NEXT_UOFF3(cursor);
+ value = FT_NEXT_UOFF3( cursor );
sign_shift = 8;
break;
case ft_frame_off3_le:
case ft_frame_uoff3_le: /* read a 3-byte little-endian long */
- value = FT_NEXT_UOFF3_LE(cursor);
+ value = FT_NEXT_UOFF3_LE( cursor );
sign_shift = 8;
break;
@@ -831,15 +832,15 @@
p = (FT_Byte*)structure + fields->offset;
switch ( fields->size )
{
- case (8 / FT_CHAR_BIT):
+ case ( 8 / FT_CHAR_BIT ):
*(FT_Byte*)p = (FT_Byte)value;
break;
- case (16 / FT_CHAR_BIT):
+ case ( 16 / FT_CHAR_BIT ):
*(FT_UShort*)p = (FT_UShort)value;
break;
- case (32 / FT_CHAR_BIT):
+ case ( 32 / FT_CHAR_BIT ):
*(FT_UInt32*)p = (FT_UInt32)value;
break;
diff --git a/src/base/ftstroke.c b/src/base/ftstroke.c
index 5399efe..ee61cec 100644
--- a/src/base/ftstroke.c
+++ b/src/base/ftstroke.c
@@ -4,7 +4,7 @@
/* */
/* FreeType path stroker (body). */
/* */
-/* Copyright 2002-2006, 2008-2011 by */
+/* Copyright 2002-2006, 2008-2011, 2013 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -789,13 +789,13 @@
FT_Stroker_New( FT_Library library,
FT_Stroker *astroker )
{
- FT_Error error;
+ FT_Error error; /* assigned in FT_NEW */
FT_Memory memory;
FT_Stroker stroker = NULL;
if ( !library )
- return FT_Err_Invalid_Argument;
+ return FT_THROW( Invalid_Argument );
memory = library->memory;
@@ -1126,9 +1126,8 @@
middle.y += stroker->center.y;
/* compute first angle point */
- length = FT_MulFix( radius,
- FT_DivFix( 0x10000L - sigma,
- ft_pos_abs( FT_Sin( theta ) ) ) );
+ length = FT_MulDiv( radius, 0x10000L - sigma,
+ ft_pos_abs( FT_Sin( theta ) ) );
FT_Vector_From_Polar( &delta, length, phi + rotate );
delta.x += middle.x;
@@ -1495,7 +1494,7 @@
sinA = ft_pos_abs( FT_Sin( alpha1 - gamma ) );
sinB = ft_pos_abs( FT_Sin( beta - gamma ) );
- alen = FT_DivFix( FT_MulFix( blen, sinA ), sinB );
+ alen = FT_MulDiv( blen, sinA, sinB );
FT_Vector_From_Polar( &delta, alen, beta );
delta.x += start.x;
@@ -1702,7 +1701,7 @@
sinA = ft_pos_abs( FT_Sin( alpha1 - gamma ) );
sinB = ft_pos_abs( FT_Sin( beta - gamma ) );
- alen = FT_DivFix( FT_MulFix( blen, sinA ), sinB );
+ alen = FT_MulDiv( blen, sinA, sinB );
FT_Vector_From_Polar( &delta, alen, beta );
delta.x += start.x;
@@ -1955,7 +1954,7 @@
if ( !stroker || border > 1 )
{
- error = FT_Err_Invalid_Argument;
+ error = FT_THROW( Invalid_Argument );
goto Exit;
}
@@ -2061,7 +2060,7 @@
if ( !outline || !stroker )
- return FT_Err_Invalid_Argument;
+ return FT_THROW( Invalid_Argument );
FT_Stroker_Rewind( stroker );
@@ -2239,7 +2238,7 @@
return error;
Invalid_Outline:
- return FT_Err_Invalid_Outline;
+ return FT_THROW( Invalid_Outline );
}
@@ -2259,7 +2258,7 @@
FT_Stroker stroker,
FT_Bool destroy )
{
- FT_Error error = FT_Err_Invalid_Argument;
+ FT_Error error = FT_ERR( Invalid_Argument );
FT_Glyph glyph = NULL;
FT_Library library = stroker->library;
@@ -2335,7 +2334,7 @@
FT_Bool inside,
FT_Bool destroy )
{
- FT_Error error = FT_Err_Invalid_Argument;
+ FT_Error error = FT_ERR( Invalid_Argument );
FT_Glyph glyph = NULL;
FT_Library library = stroker->library;
diff --git a/src/base/ftsynth.c b/src/base/ftsynth.c
index d4ec0da..241d37f 100644
--- a/src/base/ftsynth.c
+++ b/src/base/ftsynth.c
@@ -4,7 +4,7 @@
/* */
/* FreeType synthesizing code for emboldening and slanting (body). */
/* */
-/* Copyright 2000-2001, 2002, 2003, 2004, 2005, 2006, 2010 by */
+/* Copyright 2000-2006, 2010, 2012 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -33,6 +33,7 @@
#undef FT_COMPONENT
#define FT_COMPONENT trace_synth
+
/*************************************************************************/
/*************************************************************************/
/**** ****/
@@ -62,7 +63,7 @@
transform.xx = 0x10000L;
transform.yx = 0x00000L;
- transform.xy = 0x06000L;
+ transform.xy = 0x0366AL;
transform.yy = 0x10000L;
FT_Outline_Transform( outline, &transform );
@@ -72,7 +73,7 @@
/*************************************************************************/
/*************************************************************************/
/**** ****/
- /**** EXPERIMENTAL EMBOLDENING/OUTLINING SUPPORT ****/
+ /**** EXPERIMENTAL EMBOLDENING SUPPORT ****/
/**** ****/
/*************************************************************************/
/*************************************************************************/
@@ -101,12 +102,7 @@
if ( slot->format == FT_GLYPH_FORMAT_OUTLINE )
{
/* ignore error */
- (void)FT_Outline_Embolden( &slot->outline, xstr );
-
- /* this is more than enough for most glyphs; if you need accurate */
- /* values, you have to call FT_Outline_Get_CBox */
- xstr = xstr * 2;
- ystr = xstr;
+ (void)FT_Outline_EmboldenXY( &slot->outline, xstr, ystr );
}
else /* slot->format == FT_GLYPH_FORMAT_BITMAP */
{
@@ -143,13 +139,10 @@
if ( slot->advance.y )
slot->advance.y += ystr;
- slot->metrics.width += xstr;
- slot->metrics.height += ystr;
- slot->metrics.horiBearingY += ystr;
- slot->metrics.horiAdvance += xstr;
- slot->metrics.vertBearingX -= xstr / 2;
- slot->metrics.vertBearingY += ystr;
- slot->metrics.vertAdvance += ystr;
+ slot->metrics.width += xstr;
+ slot->metrics.height += ystr;
+ slot->metrics.horiAdvance += xstr;
+ slot->metrics.vertAdvance += ystr;
/* XXX: 16-bit overflow case must be excluded before here */
if ( slot->format == FT_GLYPH_FORMAT_BITMAP )
diff --git a/src/base/ftsystem.c b/src/base/ftsystem.c
index 7e203be..2c6ddac 100644
--- a/src/base/ftsystem.c
+++ b/src/base/ftsystem.c
@@ -4,7 +4,7 @@
/* */
/* ANSI-specific FreeType low-level system interface (body). */
/* */
-/* Copyright 1996-2002, 2006, 2008-2011 by */
+/* Copyright 1996-2002, 2006, 2008-2011, 2013 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -228,7 +228,7 @@
if ( !stream )
- return FT_Err_Invalid_Stream_Handle;
+ return FT_THROW( Invalid_Stream_Handle );
stream->descriptor.pointer = NULL;
stream->pathname.pointer = (char*)filepathname;
@@ -243,7 +243,7 @@
FT_ERROR(( "FT_Stream_Open:"
" could not open `%s'\n", filepathname ));
- return FT_Err_Cannot_Open_Resource;
+ return FT_THROW( Cannot_Open_Resource );
}
ft_fseek( file, 0, SEEK_END );
@@ -253,7 +253,7 @@
FT_ERROR(( "FT_Stream_Open:" ));
FT_ERROR(( " opened `%s' but zero-sized\n", filepathname ));
ft_fclose( file );
- return FT_Err_Cannot_Open_Stream;
+ return FT_THROW( Cannot_Open_Stream );
}
ft_fseek( file, 0, SEEK_SET );
diff --git a/src/base/fttrigon.c b/src/base/fttrigon.c
index fdf433a..4ffdcb7 100644
--- a/src/base/fttrigon.c
+++ b/src/base/fttrigon.c
@@ -4,7 +4,7 @@
/* */
/* FreeType trigonometric functions (body). */
/* */
-/* Copyright 2001, 2002, 2003, 2004, 2005 by */
+/* Copyright 2001-2005, 2012-2013 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -15,31 +15,46 @@
/* */
/***************************************************************************/
+ /*************************************************************************/
+ /* */
+ /* This is a fixed-point CORDIC implementation of trigonometric */
+ /* functions as well as transformations between Cartesian and polar */
+ /* coordinates. The angles are represented as 16.16 fixed-point values */
+ /* in degrees, i.e., the angular resolution is 2^-16 degrees. Note that */
+ /* only vectors longer than 2^16*180/pi (or at least 22 bits) on a */
+ /* discrete Cartesian grid can have the same or better angular */
+ /* resolution. Therefore, to maintain this precision, some functions */
+ /* require an interim upscaling of the vectors, whereas others operate */
+ /* with 24-bit long vectors directly. */
+ /* */
+ /*************************************************************************/
#include <ft2build.h>
#include FT_INTERNAL_OBJECTS_H
+#include FT_INTERNAL_CALC_H
#include FT_TRIGONOMETRY_H
- /* the following is 0.2715717684432231 * 2^30 */
-#define FT_TRIG_COSCALE 0x11616E8EUL
+ /* the Cordic shrink factor 0.858785336480436 * 2^32 */
+#define FT_TRIG_SCALE 0xDBD95B16UL
+
+ /* the highest bit in overflow-safe vector components, */
+ /* MSB of 0.858785336480436 * sqrt(0.5) * 2^30 */
+#define FT_TRIG_SAFE_MSB 29
/* this table was generated for FT_PI = 180L << 16, i.e. degrees */
#define FT_TRIG_MAX_ITERS 23
static const FT_Fixed
- ft_trig_arctan_table[24] =
+ ft_trig_arctan_table[] =
{
- 4157273L, 2949120L, 1740967L, 919879L, 466945L, 234379L, 117304L,
- 58666L, 29335L, 14668L, 7334L, 3667L, 1833L, 917L, 458L, 229L, 115L,
+ 1740967L, 919879L, 466945L, 234379L, 117304L, 58666L, 29335L,
+ 14668L, 7334L, 3667L, 1833L, 917L, 458L, 229L, 115L,
57L, 29L, 14L, 7L, 4L, 2L, 1L
};
- /* the Cordic shrink factor, multiplied by 2^32 */
-#define FT_TRIG_SCALE 1166391785UL /* 0x4585BA38UL */
-
-#ifdef FT_CONFIG_HAS_INT64
+#ifdef FT_LONG64
/* multiply a given value by the CORDIC shrink factor */
static FT_Fixed
@@ -50,7 +65,7 @@
s = val;
- val = ( val >= 0 ) ? val : -val;
+ val = FT_ABS( val );
v = ( val * (FT_Int64)FT_TRIG_SCALE ) + 0x100000000UL;
val = (FT_Fixed)( v >> 32 );
@@ -58,7 +73,7 @@
return ( s >= 0 ) ? val : -val;
}
-#else /* !FT_CONFIG_HAS_INT64 */
+#else /* !FT_LONG64 */
/* multiply a given value by the CORDIC shrink factor */
static FT_Fixed
@@ -69,19 +84,19 @@
s = val;
- val = ( val >= 0 ) ? val : -val;
+ val = FT_ABS( val );
v1 = (FT_UInt32)val >> 16;
- v2 = (FT_UInt32)(val & 0xFFFFL);
+ v2 = (FT_UInt32)( val & 0xFFFFL );
- k1 = (FT_UInt32)FT_TRIG_SCALE >> 16; /* constant */
- k2 = (FT_UInt32)(FT_TRIG_SCALE & 0xFFFFL); /* constant */
+ k1 = (FT_UInt32)FT_TRIG_SCALE >> 16; /* constant */
+ k2 = (FT_UInt32)( FT_TRIG_SCALE & 0xFFFFL ); /* constant */
hi = k1 * v1;
lo1 = k1 * v2 + k2 * v1; /* can't overflow */
lo2 = ( k2 * v2 ) >> 16;
- lo3 = ( lo1 >= lo2 ) ? lo1 : lo2;
+ lo3 = FT_MAX( lo1, lo2 );
lo1 += lo2;
hi += lo1 >> 16;
@@ -93,91 +108,35 @@
return ( s >= 0 ) ? val : -val;
}
-#endif /* !FT_CONFIG_HAS_INT64 */
+#endif /* !FT_LONG64 */
static FT_Int
ft_trig_prenorm( FT_Vector* vec )
{
- FT_Fixed x, y, z;
- FT_Int shift;
+ FT_Pos x, y;
+ FT_Int shift;
x = vec->x;
y = vec->y;
- z = ( ( x >= 0 ) ? x : - x ) | ( (y >= 0) ? y : -y );
- shift = 0;
+ shift = FT_MSB( FT_ABS( x ) | FT_ABS( y ) );
-#if 1
- /* determine msb bit index in `shift' */
- if ( z >= ( 1L << 16 ) )
- {
- z >>= 16;
- shift += 16;
- }
- if ( z >= ( 1L << 8 ) )
- {
- z >>= 8;
- shift += 8;
- }
- if ( z >= ( 1L << 4 ) )
- {
- z >>= 4;
- shift += 4;
- }
- if ( z >= ( 1L << 2 ) )
+ if ( shift <= FT_TRIG_SAFE_MSB )
{
- z >>= 2;
- shift += 2;
- }
- if ( z >= ( 1L << 1 ) )
- {
- z >>= 1;
- shift += 1;
- }
-
- if ( shift <= 27 )
- {
- shift = 27 - shift;
- vec->x = x << shift;
- vec->y = y << shift;
+ shift = FT_TRIG_SAFE_MSB - shift;
+ vec->x = (FT_Pos)( (FT_ULong)x << shift );
+ vec->y = (FT_Pos)( (FT_ULong)y << shift );
}
else
{
- shift -= 27;
- vec->x = x >> shift;
- vec->y = y >> shift;
- shift = -shift;
- }
-
-#else /* 0 */
-
- if ( z < ( 1L << 27 ) )
- {
- do
- {
- shift++;
- z <<= 1;
- } while ( z < ( 1L << 27 ) );
- vec->x = x << shift;
- vec->y = y << shift;
- }
- else if ( z > ( 1L << 28 ) )
- {
- do
- {
- shift++;
- z >>= 1;
- } while ( z > ( 1L << 28 ) );
-
+ shift -= FT_TRIG_SAFE_MSB;
vec->x = x >> shift;
vec->y = y >> shift;
shift = -shift;
}
-#endif /* 0 */
-
return shift;
}
@@ -187,65 +146,50 @@
FT_Angle theta )
{
FT_Int i;
- FT_Fixed x, y, xtemp;
+ FT_Fixed x, y, xtemp, b;
const FT_Fixed *arctanptr;
x = vec->x;
y = vec->y;
- /* Get angle between -90 and 90 degrees */
- while ( theta <= -FT_ANGLE_PI2 )
+ /* Rotate inside [-PI/4,PI/4] sector */
+ while ( theta < -FT_ANGLE_PI4 )
{
- x = -x;
- y = -y;
- theta += FT_ANGLE_PI;
+ xtemp = y;
+ y = -x;
+ x = xtemp;
+ theta += FT_ANGLE_PI2;
}
- while ( theta > FT_ANGLE_PI2 )
+ while ( theta > FT_ANGLE_PI4 )
{
- x = -x;
- y = -y;
- theta -= FT_ANGLE_PI;
+ xtemp = -y;
+ y = x;
+ x = xtemp;
+ theta -= FT_ANGLE_PI2;
}
- /* Initial pseudorotation, with left shift */
arctanptr = ft_trig_arctan_table;
- if ( theta < 0 )
- {
- xtemp = x + ( y << 1 );
- y = y - ( x << 1 );
- x = xtemp;
- theta += *arctanptr++;
- }
- else
- {
- xtemp = x - ( y << 1 );
- y = y + ( x << 1 );
- x = xtemp;
- theta -= *arctanptr++;
- }
-
- /* Subsequent pseudorotations, with right shifts */
- i = 0;
- do
+ /* Pseudorotations, with right shifts */
+ for ( i = 1, b = 1; i < FT_TRIG_MAX_ITERS; b <<= 1, i++ )
{
if ( theta < 0 )
{
- xtemp = x + ( y >> i );
- y = y - ( x >> i );
+ xtemp = x + ( ( y + b ) >> i );
+ y = y - ( ( x + b ) >> i );
x = xtemp;
theta += *arctanptr++;
}
else
{
- xtemp = x - ( y >> i );
- y = y + ( x >> i );
+ xtemp = x - ( ( y + b ) >> i );
+ y = y + ( ( x + b ) >> i );
x = xtemp;
theta -= *arctanptr++;
}
- } while ( ++i < FT_TRIG_MAX_ITERS );
+ }
vec->x = x;
vec->y = y;
@@ -255,66 +199,67 @@
static void
ft_trig_pseudo_polarize( FT_Vector* vec )
{
- FT_Fixed theta;
- FT_Fixed yi, i;
- FT_Fixed x, y;
+ FT_Angle theta;
+ FT_Int i;
+ FT_Fixed x, y, xtemp, b;
const FT_Fixed *arctanptr;
x = vec->x;
y = vec->y;
- /* Get the vector into the right half plane */
- theta = 0;
- if ( x < 0 )
+ /* Get the vector into [-PI/4,PI/4] sector */
+ if ( y > x )
{
- x = -x;
- y = -y;
- theta = 2 * FT_ANGLE_PI2;
- }
-
- if ( y > 0 )
- theta = - theta;
-
- arctanptr = ft_trig_arctan_table;
-
- if ( y < 0 )
- {
- /* Rotate positive */
- yi = y + ( x << 1 );
- x = x - ( y << 1 );
- y = yi;
- theta -= *arctanptr++; /* Subtract angle */
+ if ( y > -x )
+ {
+ theta = FT_ANGLE_PI2;
+ xtemp = y;
+ y = -x;
+ x = xtemp;
+ }
+ else
+ {
+ theta = y > 0 ? FT_ANGLE_PI : -FT_ANGLE_PI;
+ x = -x;
+ y = -y;
+ }
}
else
{
- /* Rotate negative */
- yi = y - ( x << 1 );
- x = x + ( y << 1 );
- y = yi;
- theta += *arctanptr++; /* Add angle */
+ if ( y < -x )
+ {
+ theta = -FT_ANGLE_PI2;
+ xtemp = -y;
+ y = x;
+ x = xtemp;
+ }
+ else
+ {
+ theta = 0;
+ }
}
- i = 0;
- do
+ arctanptr = ft_trig_arctan_table;
+
+ /* Pseudorotations, with right shifts */
+ for ( i = 1, b = 1; i < FT_TRIG_MAX_ITERS; b <<= 1, i++ )
{
- if ( y < 0 )
+ if ( y > 0 )
{
- /* Rotate positive */
- yi = y + ( x >> i );
- x = x - ( y >> i );
- y = yi;
- theta -= *arctanptr++;
+ xtemp = x + ( ( y + b ) >> i );
+ y = y - ( ( x + b ) >> i );
+ x = xtemp;
+ theta += *arctanptr++;
}
else
{
- /* Rotate negative */
- yi = y - ( x >> i );
- x = x + ( y >> i );
- y = yi;
- theta += *arctanptr++;
+ xtemp = x - ( ( y + b ) >> i );
+ y = y + ( ( x + b ) >> i );
+ x = xtemp;
+ theta -= *arctanptr++;
}
- } while ( ++i < FT_TRIG_MAX_ITERS );
+ }
/* round theta */
if ( theta >= 0 )
@@ -335,11 +280,11 @@
FT_Vector v;
- v.x = FT_TRIG_COSCALE >> 2;
+ v.x = FT_TRIG_SCALE >> 8;
v.y = 0;
ft_trig_pseudo_rotate( &v, angle );
- return v.x / ( 1 << 12 );
+ return ( v.x + 0x80L ) >> 8;
}
@@ -360,7 +305,7 @@
FT_Vector v;
- v.x = FT_TRIG_COSCALE >> 2;
+ v.x = FT_TRIG_SCALE >> 8;
v.y = 0;
ft_trig_pseudo_rotate( &v, angle );
@@ -395,11 +340,11 @@
FT_Vector_Unit( FT_Vector* vec,
FT_Angle angle )
{
- vec->x = FT_TRIG_COSCALE >> 2;
+ vec->x = FT_TRIG_SCALE >> 8;
vec->y = 0;
ft_trig_pseudo_rotate( vec, angle );
- vec->x >>= 12;
- vec->y >>= 12;
+ vec->x = ( vec->x + 0x80L ) >> 8;
+ vec->y = ( vec->y + 0x80L ) >> 8;
}
@@ -442,8 +387,8 @@
else
{
shift = -shift;
- vec->x = v.x << shift;
- vec->y = v.y << shift;
+ vec->x = (FT_Pos)( (FT_ULong)v.x << shift );
+ vec->y = (FT_Pos)( (FT_ULong)v.y << shift );
}
}
}
@@ -463,11 +408,11 @@
/* handle trivial cases */
if ( v.x == 0 )
{
- return ( v.y >= 0 ) ? v.y : -v.y;
+ return FT_ABS( v.y );
}
else if ( v.y == 0 )
{
- return ( v.x >= 0 ) ? v.x : -v.x;
+ return FT_ABS( v.x );
}
/* general case */
@@ -479,7 +424,7 @@
if ( shift > 0 )
return ( v.x + ( 1 << ( shift - 1 ) ) ) >> shift;
- return v.x << -shift;
+ return (FT_Fixed)( (FT_UInt32)v.x << -shift );
}
@@ -504,7 +449,8 @@
v.x = ft_trig_downscale( v.x );
- *length = ( shift >= 0 ) ? ( v.x >> shift ) : ( v.x << -shift );
+ *length = ( shift >= 0 ) ? ( v.x >> shift )
+ : (FT_Fixed)( (FT_UInt32)v.x << -shift );
*angle = v.y;
}
diff --git a/src/base/fttype1.c b/src/base/fttype1.c
index c30124f..1d17402 100644
--- a/src/base/fttype1.c
+++ b/src/base/fttype1.c
@@ -28,7 +28,7 @@
FT_Get_PS_Font_Info( FT_Face face,
PS_FontInfoRec* afont_info )
{
- FT_Error error = FT_Err_Invalid_Argument;
+ FT_Error error = FT_ERR( Invalid_Argument );
if ( face )
@@ -73,7 +73,7 @@
FT_Get_PS_Font_Private( FT_Face face,
PS_PrivateRec* afont_private )
{
- FT_Error error = FT_Err_Invalid_Argument;
+ FT_Error error = FT_ERR( Invalid_Argument );
if ( face )
diff --git a/src/base/ftutil.c b/src/base/ftutil.c
index 5f77be5..879d027 100644
--- a/src/base/ftutil.c
+++ b/src/base/ftutil.c
@@ -4,7 +4,7 @@
/* */
/* FreeType utility file for memory and list management (body). */
/* */
-/* Copyright 2002, 2004, 2005, 2006, 2007 by */
+/* Copyright 2002, 2004-2007, 2013 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -75,12 +75,12 @@
{
block = memory->alloc( memory, size );
if ( block == NULL )
- error = FT_Err_Out_Of_Memory;
+ error = FT_THROW( Out_Of_Memory );
}
else if ( size < 0 )
{
/* may help catch/prevent security issues */
- error = FT_Err_Invalid_Argument;
+ error = FT_THROW( Invalid_Argument );
}
*p_error = error;
@@ -98,6 +98,7 @@
{
FT_Error error = FT_Err_Ok;
+
block = ft_mem_qrealloc( memory, item_size,
cur_count, new_count, block, &error );
if ( !error && new_count > cur_count )
@@ -127,7 +128,7 @@
if ( cur_count < 0 || new_count < 0 || item_size < 0 )
{
/* may help catch/prevent nasty security issues */
- error = FT_Err_Invalid_Argument;
+ error = FT_THROW( Invalid_Argument );
}
else if ( new_count == 0 || item_size == 0 )
{
@@ -136,7 +137,7 @@
}
else if ( new_count > FT_INT_MAX/item_size )
{
- error = FT_Err_Array_Too_Large;
+ error = FT_THROW( Array_Too_Large );
}
else if ( cur_count == 0 )
{
@@ -153,7 +154,7 @@
block2 = memory->realloc( memory, cur_size, new_size, block );
if ( block2 == NULL )
- error = FT_Err_Out_Of_Memory;
+ error = FT_THROW( Out_Of_Memory );
else
block = block2;
}
@@ -432,70 +433,4 @@
}
-#ifdef FT_CONFIG_OPTION_OLD_INTERNALS
-
- FT_BASE_DEF( FT_Error )
- FT_Alloc( FT_Memory memory,
- FT_Long size,
- void* *P )
- {
- FT_Error error;
-
-
- (void)FT_ALLOC( *P, size );
- return error;
- }
-
-
- FT_BASE_DEF( FT_Error )
- FT_QAlloc( FT_Memory memory,
- FT_Long size,
- void* *p )
- {
- FT_Error error;
-
-
- (void)FT_QALLOC( *p, size );
- return error;
- }
-
-
- FT_BASE_DEF( FT_Error )
- FT_Realloc( FT_Memory memory,
- FT_Long current,
- FT_Long size,
- void* *P )
- {
- FT_Error error;
-
-
- (void)FT_REALLOC( *P, current, size );
- return error;
- }
-
-
- FT_BASE_DEF( FT_Error )
- FT_QRealloc( FT_Memory memory,
- FT_Long current,
- FT_Long size,
- void* *p )
- {
- FT_Error error;
-
-
- (void)FT_QREALLOC( *p, current, size );
- return error;
- }
-
-
- FT_BASE_DEF( void )
- FT_Free( FT_Memory memory,
- void* *P )
- {
- if ( *P )
- FT_MEM_FREE( *P );
- }
-
-#endif /* FT_CONFIG_OPTION_OLD_INTERNALS */
-
/* END */
diff --git a/src/base/ftwinfnt.c b/src/base/ftwinfnt.c
index bc2e90e..463ae76 100644
--- a/src/base/ftwinfnt.c
+++ b/src/base/ftwinfnt.c
@@ -32,7 +32,7 @@
FT_Error error;
- error = FT_Err_Invalid_Argument;
+ error = FT_ERR( Invalid_Argument );
if ( face != NULL )
{
diff --git a/src/base/md5.c b/src/base/md5.c
new file mode 100644
index 0000000..2f01c93
--- /dev/null
+++ b/src/base/md5.c
@@ -0,0 +1,295 @@
+/*
+ * This is an OpenSSL-compatible implementation of the RSA Data Security, Inc.
+ * MD5 Message-Digest Algorithm (RFC 1321).
+ *
+ * Homepage:
+ * http://openwall.info/wiki/people/solar/software/public-domain-source-code/md5
+ *
+ * Author:
+ * Alexander Peslyak, better known as Solar Designer <solar at openwall.com>
+ *
+ * This software was written by Alexander Peslyak in 2001. No copyright is
+ * claimed, and the software is hereby placed in the public domain.
+ * In case this attempt to disclaim copyright and place the software in the
+ * public domain is deemed null and void, then the software is
+ * Copyright (c) 2001 Alexander Peslyak and it is hereby released to the
+ * general public under the following terms:
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted.
+ *
+ * There's ABSOLUTELY NO WARRANTY, express or implied.
+ *
+ * (This is a heavily cut-down "BSD license".)
+ *
+ * This differs from Colin Plumb's older public domain implementation in that
+ * no exactly 32-bit integer data type is required (any 32-bit or wider
+ * unsigned integer data type will do), there's no compile-time endianness
+ * configuration, and the function prototypes match OpenSSL's. No code from
+ * Colin Plumb's implementation has been reused; this comment merely compares
+ * the properties of the two independent implementations.
+ *
+ * The primary goals of this implementation are portability and ease of use.
+ * It is meant to be fast, but not as fast as possible. Some known
+ * optimizations are not included to reduce source code size and avoid
+ * compile-time configuration.
+ */
+
+#ifndef HAVE_OPENSSL
+
+#include <string.h>
+
+#include "md5.h"
+
+/*
+ * The basic MD5 functions.
+ *
+ * F and G are optimized compared to their RFC 1321 definitions for
+ * architectures that lack an AND-NOT instruction, just like in Colin Plumb's
+ * implementation.
+ */
+#define F(x, y, z) ((z) ^ ((x) & ((y) ^ (z))))
+#define G(x, y, z) ((y) ^ ((z) & ((x) ^ (y))))
+#define H(x, y, z) ((x) ^ (y) ^ (z))
+#define I(x, y, z) ((y) ^ ((x) | ~(z)))
+
+/*
+ * The MD5 transformation for all four rounds.
+ */
+#define STEP(f, a, b, c, d, x, t, s) \
+ (a) += f((b), (c), (d)) + (x) + (t); \
+ (a) = (((a) << (s)) | (((a) & 0xffffffff) >> (32 - (s)))); \
+ (a) += (b);
+
+/*
+ * SET reads 4 input bytes in little-endian byte order and stores them
+ * in a properly aligned word in host byte order.
+ *
+ * The check for little-endian architectures that tolerate unaligned
+ * memory accesses is just an optimization. Nothing will break if it
+ * doesn't work.
+ */
+#if defined(__i386__) || defined(__x86_64__) || defined(__vax__)
+#define SET(n) \
+ (*(MD5_u32plus *)&ptr[(n) * 4])
+#define GET(n) \
+ SET(n)
+#else
+#define SET(n) \
+ (ctx->block[(n)] = \
+ (MD5_u32plus)ptr[(n) * 4] | \
+ ((MD5_u32plus)ptr[(n) * 4 + 1] << 8) | \
+ ((MD5_u32plus)ptr[(n) * 4 + 2] << 16) | \
+ ((MD5_u32plus)ptr[(n) * 4 + 3] << 24))
+#define GET(n) \
+ (ctx->block[(n)])
+#endif
+
+/*
+ * This processes one or more 64-byte data blocks, but does NOT update
+ * the bit counters. There are no alignment requirements.
+ */
+static void *body(MD5_CTX *ctx, void *data, unsigned long size)
+{
+ unsigned char *ptr;
+ MD5_u32plus a, b, c, d;
+ MD5_u32plus saved_a, saved_b, saved_c, saved_d;
+
+ ptr = (unsigned char *)data;
+
+ a = ctx->a;
+ b = ctx->b;
+ c = ctx->c;
+ d = ctx->d;
+
+ do {
+ saved_a = a;
+ saved_b = b;
+ saved_c = c;
+ saved_d = d;
+
+/* Round 1 */
+ STEP(F, a, b, c, d, SET(0), 0xd76aa478, 7)
+ STEP(F, d, a, b, c, SET(1), 0xe8c7b756, 12)
+ STEP(F, c, d, a, b, SET(2), 0x242070db, 17)
+ STEP(F, b, c, d, a, SET(3), 0xc1bdceee, 22)
+ STEP(F, a, b, c, d, SET(4), 0xf57c0faf, 7)
+ STEP(F, d, a, b, c, SET(5), 0x4787c62a, 12)
+ STEP(F, c, d, a, b, SET(6), 0xa8304613, 17)
+ STEP(F, b, c, d, a, SET(7), 0xfd469501, 22)
+ STEP(F, a, b, c, d, SET(8), 0x698098d8, 7)
+ STEP(F, d, a, b, c, SET(9), 0x8b44f7af, 12)
+ STEP(F, c, d, a, b, SET(10), 0xffff5bb1, 17)
+ STEP(F, b, c, d, a, SET(11), 0x895cd7be, 22)
+ STEP(F, a, b, c, d, SET(12), 0x6b901122, 7)
+ STEP(F, d, a, b, c, SET(13), 0xfd987193, 12)
+ STEP(F, c, d, a, b, SET(14), 0xa679438e, 17)
+ STEP(F, b, c, d, a, SET(15), 0x49b40821, 22)
+
+/* Round 2 */
+ STEP(G, a, b, c, d, GET(1), 0xf61e2562, 5)
+ STEP(G, d, a, b, c, GET(6), 0xc040b340, 9)
+ STEP(G, c, d, a, b, GET(11), 0x265e5a51, 14)
+ STEP(G, b, c, d, a, GET(0), 0xe9b6c7aa, 20)
+ STEP(G, a, b, c, d, GET(5), 0xd62f105d, 5)
+ STEP(G, d, a, b, c, GET(10), 0x02441453, 9)
+ STEP(G, c, d, a, b, GET(15), 0xd8a1e681, 14)
+ STEP(G, b, c, d, a, GET(4), 0xe7d3fbc8, 20)
+ STEP(G, a, b, c, d, GET(9), 0x21e1cde6, 5)
+ STEP(G, d, a, b, c, GET(14), 0xc33707d6, 9)
+ STEP(G, c, d, a, b, GET(3), 0xf4d50d87, 14)
+ STEP(G, b, c, d, a, GET(8), 0x455a14ed, 20)
+ STEP(G, a, b, c, d, GET(13), 0xa9e3e905, 5)
+ STEP(G, d, a, b, c, GET(2), 0xfcefa3f8, 9)
+ STEP(G, c, d, a, b, GET(7), 0x676f02d9, 14)
+ STEP(G, b, c, d, a, GET(12), 0x8d2a4c8a, 20)
+
+/* Round 3 */
+ STEP(H, a, b, c, d, GET(5), 0xfffa3942, 4)
+ STEP(H, d, a, b, c, GET(8), 0x8771f681, 11)
+ STEP(H, c, d, a, b, GET(11), 0x6d9d6122, 16)
+ STEP(H, b, c, d, a, GET(14), 0xfde5380c, 23)
+ STEP(H, a, b, c, d, GET(1), 0xa4beea44, 4)
+ STEP(H, d, a, b, c, GET(4), 0x4bdecfa9, 11)
+ STEP(H, c, d, a, b, GET(7), 0xf6bb4b60, 16)
+ STEP(H, b, c, d, a, GET(10), 0xbebfbc70, 23)
+ STEP(H, a, b, c, d, GET(13), 0x289b7ec6, 4)
+ STEP(H, d, a, b, c, GET(0), 0xeaa127fa, 11)
+ STEP(H, c, d, a, b, GET(3), 0xd4ef3085, 16)
+ STEP(H, b, c, d, a, GET(6), 0x04881d05, 23)
+ STEP(H, a, b, c, d, GET(9), 0xd9d4d039, 4)
+ STEP(H, d, a, b, c, GET(12), 0xe6db99e5, 11)
+ STEP(H, c, d, a, b, GET(15), 0x1fa27cf8, 16)
+ STEP(H, b, c, d, a, GET(2), 0xc4ac5665, 23)
+
+/* Round 4 */
+ STEP(I, a, b, c, d, GET(0), 0xf4292244, 6)
+ STEP(I, d, a, b, c, GET(7), 0x432aff97, 10)
+ STEP(I, c, d, a, b, GET(14), 0xab9423a7, 15)
+ STEP(I, b, c, d, a, GET(5), 0xfc93a039, 21)
+ STEP(I, a, b, c, d, GET(12), 0x655b59c3, 6)
+ STEP(I, d, a, b, c, GET(3), 0x8f0ccc92, 10)
+ STEP(I, c, d, a, b, GET(10), 0xffeff47d, 15)
+ STEP(I, b, c, d, a, GET(1), 0x85845dd1, 21)
+ STEP(I, a, b, c, d, GET(8), 0x6fa87e4f, 6)
+ STEP(I, d, a, b, c, GET(15), 0xfe2ce6e0, 10)
+ STEP(I, c, d, a, b, GET(6), 0xa3014314, 15)
+ STEP(I, b, c, d, a, GET(13), 0x4e0811a1, 21)
+ STEP(I, a, b, c, d, GET(4), 0xf7537e82, 6)
+ STEP(I, d, a, b, c, GET(11), 0xbd3af235, 10)
+ STEP(I, c, d, a, b, GET(2), 0x2ad7d2bb, 15)
+ STEP(I, b, c, d, a, GET(9), 0xeb86d391, 21)
+
+ a += saved_a;
+ b += saved_b;
+ c += saved_c;
+ d += saved_d;
+
+ ptr += 64;
+ } while (size -= 64);
+
+ ctx->a = a;
+ ctx->b = b;
+ ctx->c = c;
+ ctx->d = d;
+
+ return ptr;
+}
+
+void MD5_Init(MD5_CTX *ctx)
+{
+ ctx->a = 0x67452301;
+ ctx->b = 0xefcdab89;
+ ctx->c = 0x98badcfe;
+ ctx->d = 0x10325476;
+
+ ctx->lo = 0;
+ ctx->hi = 0;
+}
+
+void MD5_Update(MD5_CTX *ctx, void *data, unsigned long size)
+{
+ MD5_u32plus saved_lo;
+ unsigned long used, free;
+
+ saved_lo = ctx->lo;
+ if ((ctx->lo = (saved_lo + size) & 0x1fffffff) < saved_lo)
+ ctx->hi++;
+ ctx->hi += size >> 29;
+
+ used = saved_lo & 0x3f;
+
+ if (used) {
+ free = 64 - used;
+
+ if (size < free) {
+ memcpy(&ctx->buffer[used], data, size);
+ return;
+ }
+
+ memcpy(&ctx->buffer[used], data, free);
+ data = (unsigned char *)data + free;
+ size -= free;
+ body(ctx, ctx->buffer, 64);
+ }
+
+ if (size >= 64) {
+ data = body(ctx, data, size & ~(unsigned long)0x3f);
+ size &= 0x3f;
+ }
+
+ memcpy(ctx->buffer, data, size);
+}
+
+void MD5_Final(unsigned char *result, MD5_CTX *ctx)
+{
+ unsigned long used, free;
+
+ used = ctx->lo & 0x3f;
+
+ ctx->buffer[used++] = 0x80;
+
+ free = 64 - used;
+
+ if (free < 8) {
+ memset(&ctx->buffer[used], 0, free);
+ body(ctx, ctx->buffer, 64);
+ used = 0;
+ free = 64;
+ }
+
+ memset(&ctx->buffer[used], 0, free - 8);
+
+ ctx->lo <<= 3;
+ ctx->buffer[56] = ctx->lo;
+ ctx->buffer[57] = ctx->lo >> 8;
+ ctx->buffer[58] = ctx->lo >> 16;
+ ctx->buffer[59] = ctx->lo >> 24;
+ ctx->buffer[60] = ctx->hi;
+ ctx->buffer[61] = ctx->hi >> 8;
+ ctx->buffer[62] = ctx->hi >> 16;
+ ctx->buffer[63] = ctx->hi >> 24;
+
+ body(ctx, ctx->buffer, 64);
+
+ result[0] = ctx->a;
+ result[1] = ctx->a >> 8;
+ result[2] = ctx->a >> 16;
+ result[3] = ctx->a >> 24;
+ result[4] = ctx->b;
+ result[5] = ctx->b >> 8;
+ result[6] = ctx->b >> 16;
+ result[7] = ctx->b >> 24;
+ result[8] = ctx->c;
+ result[9] = ctx->c >> 8;
+ result[10] = ctx->c >> 16;
+ result[11] = ctx->c >> 24;
+ result[12] = ctx->d;
+ result[13] = ctx->d >> 8;
+ result[14] = ctx->d >> 16;
+ result[15] = ctx->d >> 24;
+
+ memset(ctx, 0, sizeof(*ctx));
+}
+
+#endif
diff --git a/src/base/md5.h b/src/base/md5.h
new file mode 100644
index 0000000..f1a6857
--- /dev/null
+++ b/src/base/md5.h
@@ -0,0 +1,45 @@
+/*
+ * This is an OpenSSL-compatible implementation of the RSA Data Security, Inc.
+ * MD5 Message-Digest Algorithm (RFC 1321).
+ *
+ * Homepage:
+ * http://openwall.info/wiki/people/solar/software/public-domain-source-code/md5
+ *
+ * Author:
+ * Alexander Peslyak, better known as Solar Designer <solar at openwall.com>
+ *
+ * This software was written by Alexander Peslyak in 2001. No copyright is
+ * claimed, and the software is hereby placed in the public domain.
+ * In case this attempt to disclaim copyright and place the software in the
+ * public domain is deemed null and void, then the software is
+ * Copyright (c) 2001 Alexander Peslyak and it is hereby released to the
+ * general public under the following terms:
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted.
+ *
+ * There's ABSOLUTELY NO WARRANTY, express or implied.
+ *
+ * See md5.c for more information.
+ */
+
+#ifdef HAVE_OPENSSL
+#include <openssl/md5.h>
+#elif !defined(_MD5_H)
+#define _MD5_H
+
+/* Any 32-bit or wider unsigned integer data type will do */
+typedef unsigned int MD5_u32plus;
+
+typedef struct {
+ MD5_u32plus lo, hi;
+ MD5_u32plus a, b, c, d;
+ unsigned char buffer[64];
+ MD5_u32plus block[16];
+} MD5_CTX;
+
+extern void MD5_Init(MD5_CTX *ctx);
+extern void MD5_Update(MD5_CTX *ctx, void *data, unsigned long size);
+extern void MD5_Final(unsigned char *result, MD5_CTX *ctx);
+
+#endif
diff --git a/src/cache/ftcbasic.c b/src/cache/ftcbasic.c
index d4fc353..84d336d 100644
--- a/src/cache/ftcbasic.c
+++ b/src/cache/ftcbasic.c
@@ -4,7 +4,7 @@
/* */
/* The FreeType basic cache interface (body). */
/* */
-/* Copyright 2003, 2004, 2005, 2006, 2007, 2009, 2010, 2011 by */
+/* Copyright 2003-2007, 2009-2011, 2013 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -30,44 +30,6 @@
#define FT_COMPONENT trace_cache
-#ifdef FT_CONFIG_OPTION_OLD_INTERNALS
-
- /*
- * These structures correspond to the FTC_Font and FTC_ImageDesc types
- * that were defined in version 2.1.7.
- */
- typedef struct FTC_OldFontRec_
- {
- FTC_FaceID face_id;
- FT_UShort pix_width;
- FT_UShort pix_height;
-
- } FTC_OldFontRec, *FTC_OldFont;
-
-
- typedef struct FTC_OldImageDescRec_
- {
- FTC_OldFontRec font;
- FT_UInt32 flags;
-
- } FTC_OldImageDescRec, *FTC_OldImageDesc;
-
-
- /*
- * Notice that FTC_OldImageDescRec and FTC_ImageTypeRec are nearly
- * identical, bit-wise. The only difference is that the `width' and
- * `height' fields are expressed as 16-bit integers in the old structure,
- * and as normal `int' in the new one.
- *
- * We are going to perform a weird hack to detect which structure is
- * being passed to the image and sbit caches. If the new structure's
- * `width' is larger than 0x10000, we assume that we are really receiving
- * an FTC_OldImageDesc.
- */
-
-#endif /* FT_CONFIG_OPTION_OLD_INTERNALS */
-
-
/*
* Basic Families
*
@@ -226,7 +188,7 @@
}
}
else
- error = FTC_Err_Invalid_Argument;
+ error = FT_THROW( Invalid_Argument );
}
}
@@ -328,7 +290,7 @@
/* some argument checks are delayed to FTC_Cache_Lookup */
if ( !aglyph )
{
- error = FTC_Err_Invalid_Argument;
+ error = FT_THROW( Invalid_Argument );
goto Exit;
}
@@ -336,26 +298,6 @@
if ( anode )
*anode = NULL;
-#if defined( FT_CONFIG_OPTION_OLD_INTERNALS ) && ( FT_INT_MAX > 0xFFFFU )
-
- /*
- * This one is a major hack used to detect whether we are passed a
- * regular FTC_ImageType handle, or a legacy FTC_OldImageDesc one.
- */
- if ( (FT_ULong)type->width >= 0x10000L )
- {
- FTC_OldImageDesc desc = (FTC_OldImageDesc)type;
-
-
- query.attrs.scaler.face_id = desc->font.face_id;
- query.attrs.scaler.width = desc->font.pix_width;
- query.attrs.scaler.height = desc->font.pix_height;
- query.attrs.load_flags = desc->flags;
- }
- else
-
-#endif /* FT_CONFIG_OPTION_OLD_INTERNALS */
-
{
if ( (FT_ULong)(type->flags - FT_INT_MIN) > FT_UINT_MAX )
{
@@ -424,7 +366,7 @@
/* some argument checks are delayed to FTC_Cache_Lookup */
if ( !aglyph || !scaler )
{
- error = FTC_Err_Invalid_Argument;
+ error = FT_THROW( Invalid_Argument );
goto Exit;
}
@@ -467,142 +409,11 @@
}
-
-#ifdef FT_CONFIG_OPTION_OLD_INTERNALS
-
- /* yet another backwards-legacy structure */
- typedef struct FTC_OldImage_Desc_
- {
- FTC_FontRec font;
- FT_UInt image_type;
-
- } FTC_OldImage_Desc;
-
-
-#define FTC_OLD_IMAGE_FORMAT( x ) ( (x) & 7 )
-
-
-#define ftc_old_image_format_bitmap 0x0000
-#define ftc_old_image_format_outline 0x0001
-
-#define ftc_old_image_format_mask 0x000F
-
-#define ftc_old_image_flag_monochrome 0x0010
-#define ftc_old_image_flag_unhinted 0x0020
-#define ftc_old_image_flag_autohinted 0x0040
-#define ftc_old_image_flag_unscaled 0x0080
-#define ftc_old_image_flag_no_sbits 0x0100
-
- /* monochrome bitmap */
-#define ftc_old_image_mono ftc_old_image_format_bitmap | \
- ftc_old_image_flag_monochrome
-
- /* anti-aliased bitmap */
-#define ftc_old_image_grays ftc_old_image_format_bitmap
-
- /* scaled outline */
-#define ftc_old_image_outline ftc_old_image_format_outline
-
-
- static void
- ftc_image_type_from_old_desc( FTC_ImageType typ,
- FTC_OldImage_Desc* desc )
- {
- typ->face_id = desc->font.face_id;
- typ->width = desc->font.pix_width;
- typ->height = desc->font.pix_height;
-
- /* convert image type flags to load flags */
- {
- FT_UInt load_flags = FT_LOAD_DEFAULT;
- FT_UInt type = desc->image_type;
-
-
- /* determine load flags, depending on the font description's */
- /* image type */
-
- if ( FTC_OLD_IMAGE_FORMAT( type ) == ftc_old_image_format_bitmap )
- {
- if ( type & ftc_old_image_flag_monochrome )
- load_flags |= FT_LOAD_MONOCHROME;
-
- /* disable embedded bitmaps loading if necessary */
- if ( type & ftc_old_image_flag_no_sbits )
- load_flags |= FT_LOAD_NO_BITMAP;
- }
- else
- {
- /* we want an outline, don't load embedded bitmaps */
- load_flags |= FT_LOAD_NO_BITMAP;
-
- if ( type & ftc_old_image_flag_unscaled )
- load_flags |= FT_LOAD_NO_SCALE;
- }
-
- /* always render glyphs to bitmaps */
- load_flags |= FT_LOAD_RENDER;
-
- if ( type & ftc_old_image_flag_unhinted )
- load_flags |= FT_LOAD_NO_HINTING;
-
- if ( type & ftc_old_image_flag_autohinted )
- load_flags |= FT_LOAD_FORCE_AUTOHINT;
-
- typ->flags = load_flags;
- }
- }
-
-
- FT_EXPORT( FT_Error )
- FTC_Image_Cache_New( FTC_Manager manager,
- FTC_ImageCache *acache );
-
- FT_EXPORT( FT_Error )
- FTC_Image_Cache_Lookup( FTC_ImageCache icache,
- FTC_OldImage_Desc* desc,
- FT_UInt gindex,
- FT_Glyph *aglyph );
-
-
- FT_EXPORT_DEF( FT_Error )
- FTC_Image_Cache_New( FTC_Manager manager,
- FTC_ImageCache *acache )
- {
- return FTC_ImageCache_New( manager, (FTC_ImageCache*)acache );
- }
-
-
-
- FT_EXPORT_DEF( FT_Error )
- FTC_Image_Cache_Lookup( FTC_ImageCache icache,
- FTC_OldImage_Desc* desc,
- FT_UInt gindex,
- FT_Glyph *aglyph )
- {
- FTC_ImageTypeRec type0;
-
-
- if ( !desc )
- return FTC_Err_Invalid_Argument;
-
- ftc_image_type_from_old_desc( &type0, desc );
-
- return FTC_ImageCache_Lookup( (FTC_ImageCache)icache,
- &type0,
- gindex,
- aglyph,
- NULL );
- }
-
-#endif /* FT_CONFIG_OPTION_OLD_INTERNALS */
-
-
- /*
- *
- * basic small bitmap cache
- *
- */
-
+ /*
+ *
+ * basic small bitmap cache
+ *
+ */
FT_CALLBACK_TABLE_DEF
const FTC_SFamilyClassRec ftc_basic_sbit_family_class =
@@ -668,29 +479,10 @@
/* other argument checks delayed to FTC_Cache_Lookup */
if ( !ansbit )
- return FTC_Err_Invalid_Argument;
+ return FT_THROW( Invalid_Argument );
*ansbit = NULL;
-#if defined( FT_CONFIG_OPTION_OLD_INTERNALS ) && ( FT_INT_MAX > 0xFFFFU )
-
- /* This one is a major hack used to detect whether we are passed a
- * regular FTC_ImageType handle, or a legacy FTC_OldImageDesc one.
- */
- if ( (FT_ULong)type->width >= 0x10000L )
- {
- FTC_OldImageDesc desc = (FTC_OldImageDesc)type;
-
-
- query.attrs.scaler.face_id = desc->font.face_id;
- query.attrs.scaler.width = desc->font.pix_width;
- query.attrs.scaler.height = desc->font.pix_height;
- query.attrs.load_flags = desc->flags;
- }
- else
-
-#endif /* FT_CONFIG_OPTION_OLD_INTERNALS */
-
{
if ( (FT_ULong)(type->flags - FT_INT_MIN) > FT_UINT_MAX )
{
@@ -765,7 +557,7 @@
/* other argument checks delayed to FTC_Cache_Lookup */
if ( !ansbit || !scaler )
- return FTC_Err_Invalid_Argument;
+ return FT_THROW( Invalid_Argument );
*ansbit = NULL;
@@ -807,49 +599,4 @@
}
-#ifdef FT_CONFIG_OPTION_OLD_INTERNALS
-
- FT_EXPORT( FT_Error )
- FTC_SBit_Cache_New( FTC_Manager manager,
- FTC_SBitCache *acache );
-
- FT_EXPORT( FT_Error )
- FTC_SBit_Cache_Lookup( FTC_SBitCache cache,
- FTC_OldImage_Desc* desc,
- FT_UInt gindex,
- FTC_SBit *ansbit );
-
-
- FT_EXPORT_DEF( FT_Error )
- FTC_SBit_Cache_New( FTC_Manager manager,
- FTC_SBitCache *acache )
- {
- return FTC_SBitCache_New( manager, (FTC_SBitCache*)acache );
- }
-
-
- FT_EXPORT_DEF( FT_Error )
- FTC_SBit_Cache_Lookup( FTC_SBitCache cache,
- FTC_OldImage_Desc* desc,
- FT_UInt gindex,
- FTC_SBit *ansbit )
- {
- FTC_ImageTypeRec type0;
-
-
- if ( !desc )
- return FTC_Err_Invalid_Argument;
-
- ftc_image_type_from_old_desc( &type0, desc );
-
- return FTC_SBitCache_Lookup( (FTC_SBitCache)cache,
- &type0,
- gindex,
- ansbit,
- NULL );
- }
-
-#endif /* FT_CONFIG_OPTION_OLD_INTERNALS */
-
-
/* END */
diff --git a/src/cache/ftccache.c b/src/cache/ftccache.c
index f01c403..f20dd45 100644
--- a/src/cache/ftccache.c
+++ b/src/cache/ftccache.c
@@ -4,8 +4,7 @@
/* */
/* The FreeType internal cache interface (body). */
/* */
-/* Copyright 2000-2001, 2002, 2003, 2004, 2005, 2006, 2007, 2009, 2010, */
-/* 2011 by */
+/* Copyright 2000-2007, 2009-2011, 2013 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -270,11 +269,7 @@
/* remove a node from the cache manager */
-#ifdef FT_CONFIG_OPTION_OLD_INTERNALS
- FT_BASE_DEF( void )
-#else
FT_LOCAL_DEF( void )
-#endif
ftc_node_destroy( FTC_Node node,
FTC_Manager manager )
{
@@ -493,14 +488,14 @@
FTC_Node* bucket;
FTC_Node* pnode;
FTC_Node node;
- FT_Error error = FTC_Err_Ok;
+ FT_Error error = FT_Err_Ok;
FT_Bool list_changed = FALSE;
FTC_Node_CompareFunc compare = cache->clazz.node_compare;
if ( cache == NULL || anode == NULL )
- return FTC_Err_Invalid_Argument;
+ return FT_THROW( Invalid_Argument );
/* Go to the `top' node of the list sharing same masked hash */
bucket = pnode = FTC_NODE__TOP_FOR_HASH( cache, hash );
diff --git a/src/cache/ftccache.h b/src/cache/ftccache.h
index d60984f..4155f32 100644
--- a/src/cache/ftccache.h
+++ b/src/cache/ftccache.h
@@ -4,8 +4,7 @@
/* */
/* FreeType internal cache interface (specification). */
/* */
-/* Copyright 2000-2001, 2002, 2003, 2004, 2005, 2006, 2007, 2009, 2010, */
-/* 2011 by */
+/* Copyright 2000-2007, 2009-2011, 2013 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -87,12 +86,6 @@ FT_BEGIN_HEADER
ftc_get_top_node_for_hash( ( cache ), ( hash ) )
#endif
-#ifdef FT_CONFIG_OPTION_OLD_INTERNALS
- FT_BASE( void )
- ftc_node_destroy( FTC_Node node,
- FTC_Manager manager );
-#endif
-
/*************************************************************************/
/*************************************************************************/
@@ -223,7 +216,7 @@ FT_BEGIN_HEADER
FT_Bool _list_changed = FALSE; \
\
\
- error = FTC_Err_Ok; \
+ error = FT_Err_Ok; \
node = NULL; \
\
/* Go to the `top' node of the list sharing same masked hash */ \
@@ -328,7 +321,7 @@ FT_BEGIN_HEADER
#define FTC_CACHE_TRYLOOP_END( list_changed ) \
- if ( !error || error != FTC_Err_Out_Of_Memory ) \
+ if ( !error || FT_ERR_NEQ( error, Out_Of_Memory ) ) \
break; \
\
_try_done = FTC_Manager_FlushN( _try_manager, _try_count ); \
diff --git a/src/cache/ftccback.h b/src/cache/ftccback.h
index 80ec9ce..9528279 100644
--- a/src/cache/ftccback.h
+++ b/src/cache/ftccback.h
@@ -4,7 +4,7 @@
/* */
/* Callback functions of the caching sub-system (specification only). */
/* */
-/* Copyright 2004, 2005, 2006, 2011 by */
+/* Copyright 2004-2006, 2011, 2013 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -81,11 +81,10 @@
FT_LOCAL( void )
ftc_cache_done( FTC_Cache cache );
-#ifndef FT_CONFIG_OPTION_OLD_INTERNALS
FT_LOCAL( void )
ftc_node_destroy( FTC_Node node,
FTC_Manager manager );
-#endif
+
#endif /* __FTCCBACK_H__ */
diff --git a/src/cache/ftccmap.c b/src/cache/ftccmap.c
index ad436ef..848349b 100644
--- a/src/cache/ftccmap.c
+++ b/src/cache/ftccmap.c
@@ -4,8 +4,7 @@
/* */
/* FreeType CharMap cache (body) */
/* */
-/* Copyright 2000-2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, */
-/* 2010, 2011 by */
+/* Copyright 2000-2013 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -32,43 +31,6 @@
#define FT_COMPONENT trace_cache
-#ifdef FT_CONFIG_OPTION_OLD_INTERNALS
-
- typedef enum FTC_OldCMapType_
- {
- FTC_OLD_CMAP_BY_INDEX = 0,
- FTC_OLD_CMAP_BY_ENCODING = 1,
- FTC_OLD_CMAP_BY_ID = 2
-
- } FTC_OldCMapType;
-
-
- typedef struct FTC_OldCMapIdRec_
- {
- FT_UInt platform;
- FT_UInt encoding;
-
- } FTC_OldCMapIdRec, *FTC_OldCMapId;
-
-
- typedef struct FTC_OldCMapDescRec_
- {
- FTC_FaceID face_id;
- FTC_OldCMapType type;
-
- union
- {
- FT_UInt index;
- FT_Encoding encoding;
- FTC_OldCMapIdRec id;
-
- } u;
-
- } FTC_OldCMapDescRec, *FTC_OldCMapDesc;
-
-#endif /* FT_CONFIG_OLD_INTERNALS */
-
-
/*************************************************************************/
/* */
/* Each FTC_CMapNode contains a simple array to map a range of character */
@@ -121,7 +83,7 @@
/* if (indices[n] == FTC_CMAP_UNKNOWN), we assume that the corresponding */
/* glyph indices haven't been queried through FT_Get_Glyph_Index() yet */
-#define FTC_CMAP_UNKNOWN ( (FT_UInt16)-1 )
+#define FTC_CMAP_UNKNOWN (FT_UInt16)~0
/*************************************************************************/
@@ -267,21 +229,6 @@
}
-#ifdef FT_CONFIG_OPTION_OLD_INTERNALS
-
- /*
- * Unfortunately, it is not possible to support binary backwards
- * compatibility in the cmap cache. The FTC_CMapCache_Lookup signature
- * changes were too deep, and there is no clever hackish way to detect
- * what kind of structure we are being passed.
- *
- * On the other hand it seems that no production code is using this
- * function on Unix distributions.
- */
-
-#endif
-
-
/* documentation is in ftcache.h */
FT_EXPORT_DEF( FT_UInt )
@@ -316,57 +263,9 @@
return 0;
}
-#ifdef FT_CONFIG_OPTION_OLD_INTERNALS
-
- /*
- * If cmap_index is greater than the maximum number of cachable
- * charmaps, we assume the request is from a legacy rogue client
- * using old internal header. See include/config/ftoption.h.
- */
- if ( cmap_index > FT_MAX_CHARMAP_CACHEABLE && !no_cmap_change )
- {
- FTC_OldCMapDesc desc = (FTC_OldCMapDesc) face_id;
-
-
- char_code = (FT_UInt32)cmap_index;
- query.face_id = desc->face_id;
-
-
- switch ( desc->type )
- {
- case FTC_OLD_CMAP_BY_INDEX:
- query.cmap_index = desc->u.index;
- query.char_code = (FT_UInt32)cmap_index;
- break;
-
- case FTC_OLD_CMAP_BY_ENCODING:
- {
- FT_Face face;
-
-
- error = FTC_Manager_LookupFace( cache->manager, desc->face_id,
- &face );
- if ( error )
- return 0;
-
- FT_Select_Charmap( face, desc->u.encoding );
-
- return FT_Get_Char_Index( face, char_code );
- }
-
- default:
- return 0;
- }
- }
- else
-
-#endif /* FT_CONFIG_OPTION_OLD_INTERNALS */
-
- {
- query.face_id = face_id;
- query.cmap_index = (FT_UInt)cmap_index;
- query.char_code = char_code;
- }
+ query.face_id = face_id;
+ query.cmap_index = (FT_UInt)cmap_index;
+ query.char_code = char_code;
hash = FTC_CMAP_HASH( face_id, cmap_index, char_code );
diff --git a/src/cache/ftcmanag.h b/src/cache/ftcmanag.h
index d6c8516..0aec33c 100644
--- a/src/cache/ftcmanag.h
+++ b/src/cache/ftcmanag.h
@@ -4,7 +4,7 @@
/* */
/* FreeType Cache Manager (specification). */
/* */
-/* Copyright 2000-2001, 2003, 2004, 2006, 2010 by */
+/* Copyright 2000-2001, 2003, 2004, 2006, 2010, 2013 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -94,8 +94,8 @@ FT_BEGIN_HEADER
FT_Memory memory;
FTC_Node nodes_list;
- FT_ULong max_weight;
- FT_ULong cur_weight;
+ FT_Offset max_weight;
+ FT_Offset cur_weight;
FT_UInt num_nodes;
FTC_Cache caches[FTC_MAX_CACHES];
diff --git a/src/cache/ftcsbits.c b/src/cache/ftcsbits.c
index 8bf8d60..6df1c19 100644
--- a/src/cache/ftcsbits.c
+++ b/src/cache/ftcsbits.c
@@ -4,7 +4,7 @@
/* */
/* FreeType sbits manager (body). */
/* */
-/* Copyright 2000-2001, 2002, 2003, 2004, 2005, 2006, 2009, 2010, 2011 by */
+/* Copyright 2000-2006, 2009-2011, 2013 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -116,7 +116,7 @@
if ( (FT_UInt)(gindex - gnode->gindex) >= snode->count )
{
FT_ERROR(( "ftc_snode_load: invalid glyph index" ));
- return FTC_Err_Invalid_Argument;
+ return FT_THROW( Invalid_Argument );
}
sbit = snode->sbits + ( gindex - gnode->gindex );
@@ -189,13 +189,13 @@
/* we mark unloaded glyphs with `sbit.buffer == 0' */
/* and `width == 255', `height == 0' */
/* */
- if ( error && error != FTC_Err_Out_Of_Memory )
+ if ( error && FT_ERR_NEQ( error, Out_Of_Memory ) )
{
BadGlyph:
sbit->width = 255;
sbit->height = 0;
sbit->buffer = NULL;
- error = FTC_Err_Ok;
+ error = FT_Err_Ok;
if ( asize )
*asize = 0;
}
@@ -223,7 +223,7 @@
total = clazz->family_get_count( family, cache->manager );
if ( total == 0 || gindex >= total )
{
- error = FTC_Err_Invalid_Argument;
+ error = FT_THROW( Invalid_Argument );
goto Exit;
}
diff --git a/src/cff/cf2arrst.c b/src/cff/cf2arrst.c
new file mode 100644
index 0000000..c8d6f13
--- /dev/null
+++ b/src/cff/cf2arrst.c
@@ -0,0 +1,241 @@
+/***************************************************************************/
+/* */
+/* cf2arrst.c */
+/* */
+/* Adobe's code for Array Stacks (body). */
+/* */
+/* Copyright 2007-2013 Adobe Systems Incorporated. */
+/* */
+/* This software, and all works of authorship, whether in source or */
+/* object code form as indicated by the copyright notice(s) included */
+/* herein (collectively, the "Work") is made available, and may only be */
+/* used, modified, and distributed under the FreeType Project License, */
+/* LICENSE.TXT. Additionally, subject to the terms and conditions of the */
+/* FreeType Project License, each contributor to the Work hereby grants */
+/* to any individual or legal entity exercising permissions granted by */
+/* the FreeType Project License and this section (hereafter, "You" or */
+/* "Your") a perpetual, worldwide, non-exclusive, no-charge, */
+/* royalty-free, irrevocable (except as stated in this section) patent */
+/* license to make, have made, use, offer to sell, sell, import, and */
+/* otherwise transfer the Work, where such license applies only to those */
+/* patent claims licensable by such contributor that are necessarily */
+/* infringed by their contribution(s) alone or by combination of their */
+/* contribution(s) with the Work to which such contribution(s) was */
+/* submitted. If You institute patent litigation against any entity */
+/* (including a cross-claim or counterclaim in a lawsuit) alleging that */
+/* the Work or a contribution incorporated within the Work constitutes */
+/* direct or contributory patent infringement, then any patent licenses */
+/* granted to You under this License for that Work shall terminate as of */
+/* the date such litigation is filed. */
+/* */
+/* By using, modifying, or distributing the Work you indicate that you */
+/* have read and understood the terms and conditions of the */
+/* FreeType Project License as well as those provided in this section, */
+/* and you accept them fully. */
+/* */
+/***************************************************************************/
+
+
+#include "cf2ft.h"
+#include FT_INTERNAL_DEBUG_H
+
+#include "cf2glue.h"
+#include "cf2arrst.h"
+
+#include "cf2error.h"
+
+
+ /*
+ * CF2_ArrStack uses an error pointer, to enable shared errors.
+ * Shared errors are necessary when multiple objects allow the program
+ * to continue after detecting errors. Only the first error should be
+ * recorded.
+ */
+
+ FT_LOCAL_DEF( void )
+ cf2_arrstack_init( CF2_ArrStack arrstack,
+ FT_Memory memory,
+ FT_Error* error,
+ size_t sizeItem )
+ {
+ FT_ASSERT( arrstack != NULL );
+
+ /* initialize the structure */
+ arrstack->memory = memory;
+ arrstack->error = error;
+ arrstack->sizeItem = sizeItem;
+ arrstack->allocated = 0;
+ arrstack->chunk = 10; /* chunks of 10 items */
+ arrstack->count = 0;
+ arrstack->totalSize = 0;
+ arrstack->ptr = NULL;
+ }
+
+
+ FT_LOCAL_DEF( void )
+ cf2_arrstack_finalize( CF2_ArrStack arrstack )
+ {
+ FT_Memory memory = arrstack->memory; /* for FT_FREE */
+
+
+ FT_ASSERT( arrstack != NULL );
+
+ arrstack->allocated = 0;
+ arrstack->count = 0;
+ arrstack->totalSize = 0;
+
+ /* free the data buffer */
+ FT_FREE( arrstack->ptr );
+ }
+
+
+ /* allocate or reallocate the buffer size; */
+ /* return false on memory error */
+ static FT_Bool
+ cf2_arrstack_setNumElements( CF2_ArrStack arrstack,
+ size_t numElements )
+ {
+ FT_ASSERT( arrstack != NULL );
+
+ {
+ FT_Error error = FT_Err_Ok; /* for FT_REALLOC */
+ FT_Memory memory = arrstack->memory; /* for FT_REALLOC */
+
+ FT_Long newSize = (FT_Long)( numElements * arrstack->sizeItem );
+
+
+ if ( numElements > LONG_MAX / arrstack->sizeItem )
+ goto exit;
+
+
+ FT_ASSERT( newSize > 0 ); /* avoid realloc with zero size */
+
+ if ( !FT_REALLOC( arrstack->ptr, arrstack->totalSize, newSize ) )
+ {
+ arrstack->allocated = numElements;
+ arrstack->totalSize = newSize;
+
+ if ( arrstack->count > numElements )
+ {
+ /* we truncated the list! */
+ CF2_SET_ERROR( arrstack->error, Stack_Overflow );
+ arrstack->count = numElements;
+ return FALSE;
+ }
+
+ return TRUE; /* success */
+ }
+ }
+
+ exit:
+ /* if there's not already an error, store this one */
+ CF2_SET_ERROR( arrstack->error, Out_Of_Memory );
+
+ return FALSE;
+ }
+
+
+ /* set the count, ensuring allocation is sufficient */
+ FT_LOCAL_DEF( void )
+ cf2_arrstack_setCount( CF2_ArrStack arrstack,
+ size_t numElements )
+ {
+ FT_ASSERT( arrstack != NULL );
+
+ if ( numElements > arrstack->allocated )
+ {
+ /* expand the allocation first */
+ if ( !cf2_arrstack_setNumElements( arrstack, numElements ) )
+ return;
+ }
+
+ arrstack->count = numElements;
+ }
+
+
+ /* clear the count */
+ FT_LOCAL_DEF( void )
+ cf2_arrstack_clear( CF2_ArrStack arrstack )
+ {
+ FT_ASSERT( arrstack != NULL );
+
+ arrstack->count = 0;
+ }
+
+
+ /* current number of items */
+ FT_LOCAL_DEF( size_t )
+ cf2_arrstack_size( const CF2_ArrStack arrstack )
+ {
+ FT_ASSERT( arrstack != NULL );
+
+ return arrstack->count;
+ }
+
+
+ FT_LOCAL_DEF( void* )
+ cf2_arrstack_getBuffer( const CF2_ArrStack arrstack )
+ {
+ FT_ASSERT( arrstack != NULL );
+
+ return arrstack->ptr;
+ }
+
+
+ /* return pointer to the given element */
+ FT_LOCAL_DEF( void* )
+ cf2_arrstack_getPointer( const CF2_ArrStack arrstack,
+ size_t idx )
+ {
+ void* newPtr;
+
+
+ FT_ASSERT( arrstack != NULL );
+
+ if ( idx >= arrstack->count )
+ {
+ /* overflow */
+ CF2_SET_ERROR( arrstack->error, Stack_Overflow );
+ idx = 0; /* choose safe default */
+ }
+
+ newPtr = (FT_Byte*)arrstack->ptr + idx * arrstack->sizeItem;
+
+ return newPtr;
+ }
+
+
+ /* push (append) an element at the end of the list; */
+ /* return false on memory error */
+ /* TODO: should there be a length param for extra checking? */
+ FT_LOCAL_DEF( void )
+ cf2_arrstack_push( CF2_ArrStack arrstack,
+ const void* ptr )
+ {
+ FT_ASSERT( arrstack != NULL );
+
+ if ( arrstack->count == arrstack->allocated )
+ {
+ /* grow the buffer by one chunk */
+ if ( !cf2_arrstack_setNumElements(
+ arrstack, arrstack->allocated + arrstack->chunk ) )
+ {
+ /* on error, ignore the push */
+ return;
+ }
+ }
+
+ FT_ASSERT( ptr != NULL );
+
+ {
+ size_t offset = arrstack->count * arrstack->sizeItem;
+ void* newPtr = (FT_Byte*)arrstack->ptr + offset;
+
+
+ FT_MEM_COPY( newPtr, ptr, arrstack->sizeItem );
+ arrstack->count += 1;
+ }
+ }
+
+
+/* END */
diff --git a/src/cff/cf2arrst.h b/src/cff/cf2arrst.h
new file mode 100644
index 0000000..ff5ad8b
--- /dev/null
+++ b/src/cff/cf2arrst.h
@@ -0,0 +1,100 @@
+/***************************************************************************/
+/* */
+/* cf2arrst.h */
+/* */
+/* Adobe's code for Array Stacks (specification). */
+/* */
+/* Copyright 2007-2013 Adobe Systems Incorporated. */
+/* */
+/* This software, and all works of authorship, whether in source or */
+/* object code form as indicated by the copyright notice(s) included */
+/* herein (collectively, the "Work") is made available, and may only be */
+/* used, modified, and distributed under the FreeType Project License, */
+/* LICENSE.TXT. Additionally, subject to the terms and conditions of the */
+/* FreeType Project License, each contributor to the Work hereby grants */
+/* to any individual or legal entity exercising permissions granted by */
+/* the FreeType Project License and this section (hereafter, "You" or */
+/* "Your") a perpetual, worldwide, non-exclusive, no-charge, */
+/* royalty-free, irrevocable (except as stated in this section) patent */
+/* license to make, have made, use, offer to sell, sell, import, and */
+/* otherwise transfer the Work, where such license applies only to those */
+/* patent claims licensable by such contributor that are necessarily */
+/* infringed by their contribution(s) alone or by combination of their */
+/* contribution(s) with the Work to which such contribution(s) was */
+/* submitted. If You institute patent litigation against any entity */
+/* (including a cross-claim or counterclaim in a lawsuit) alleging that */
+/* the Work or a contribution incorporated within the Work constitutes */
+/* direct or contributory patent infringement, then any patent licenses */
+/* granted to You under this License for that Work shall terminate as of */
+/* the date such litigation is filed. */
+/* */
+/* By using, modifying, or distributing the Work you indicate that you */
+/* have read and understood the terms and conditions of the */
+/* FreeType Project License as well as those provided in this section, */
+/* and you accept them fully. */
+/* */
+/***************************************************************************/
+
+
+#ifndef __CF2ARRST_H__
+#define __CF2ARRST_H__
+
+
+#include "cf2error.h"
+
+
+FT_BEGIN_HEADER
+
+
+ /* need to define the struct here (not opaque) so it can be allocated by */
+ /* clients */
+ typedef struct CF2_ArrStackRec_
+ {
+ FT_Memory memory;
+ FT_Error* error;
+
+ size_t sizeItem; /* bytes per element */
+ size_t allocated; /* items allocated */
+ size_t chunk; /* allocation increment in items */
+ size_t count; /* number of elements allocated */
+ size_t totalSize; /* total bytes allocated */
+
+ void* ptr; /* ptr to data */
+
+ } CF2_ArrStackRec, *CF2_ArrStack;
+
+
+ FT_LOCAL( void )
+ cf2_arrstack_init( CF2_ArrStack arrstack,
+ FT_Memory memory,
+ FT_Error* error,
+ size_t sizeItem );
+ FT_LOCAL( void )
+ cf2_arrstack_finalize( CF2_ArrStack arrstack );
+
+ FT_LOCAL( void )
+ cf2_arrstack_setCount( CF2_ArrStack arrstack,
+ size_t numElements );
+ FT_LOCAL( void )
+ cf2_arrstack_clear( CF2_ArrStack arrstack );
+ FT_LOCAL( size_t )
+ cf2_arrstack_size( const CF2_ArrStack arrstack );
+
+ FT_LOCAL( void* )
+ cf2_arrstack_getBuffer( const CF2_ArrStack arrstack );
+ FT_LOCAL( void* )
+ cf2_arrstack_getPointer( const CF2_ArrStack arrstack,
+ size_t idx );
+
+ FT_LOCAL( void )
+ cf2_arrstack_push( CF2_ArrStack arrstack,
+ const void* ptr );
+
+
+FT_END_HEADER
+
+
+#endif /* __CF2ARRST_H__ */
+
+
+/* END */
diff --git a/src/cff/cf2blues.c b/src/cff/cf2blues.c
new file mode 100644
index 0000000..5b34839
--- /dev/null
+++ b/src/cff/cf2blues.c
@@ -0,0 +1,578 @@
+/***************************************************************************/
+/* */
+/* cf2blues.c */
+/* */
+/* Adobe's code for handling Blue Zones (body). */
+/* */
+/* Copyright 2009-2013 Adobe Systems Incorporated. */
+/* */
+/* This software, and all works of authorship, whether in source or */
+/* object code form as indicated by the copyright notice(s) included */
+/* herein (collectively, the "Work") is made available, and may only be */
+/* used, modified, and distributed under the FreeType Project License, */
+/* LICENSE.TXT. Additionally, subject to the terms and conditions of the */
+/* FreeType Project License, each contributor to the Work hereby grants */
+/* to any individual or legal entity exercising permissions granted by */
+/* the FreeType Project License and this section (hereafter, "You" or */
+/* "Your") a perpetual, worldwide, non-exclusive, no-charge, */
+/* royalty-free, irrevocable (except as stated in this section) patent */
+/* license to make, have made, use, offer to sell, sell, import, and */
+/* otherwise transfer the Work, where such license applies only to those */
+/* patent claims licensable by such contributor that are necessarily */
+/* infringed by their contribution(s) alone or by combination of their */
+/* contribution(s) with the Work to which such contribution(s) was */
+/* submitted. If You institute patent litigation against any entity */
+/* (including a cross-claim or counterclaim in a lawsuit) alleging that */
+/* the Work or a contribution incorporated within the Work constitutes */
+/* direct or contributory patent infringement, then any patent licenses */
+/* granted to You under this License for that Work shall terminate as of */
+/* the date such litigation is filed. */
+/* */
+/* By using, modifying, or distributing the Work you indicate that you */
+/* have read and understood the terms and conditions of the */
+/* FreeType Project License as well as those provided in this section, */
+/* and you accept them fully. */
+/* */
+/***************************************************************************/
+
+
+#include "cf2ft.h"
+#include FT_INTERNAL_DEBUG_H
+
+#include "cf2blues.h"
+#include "cf2hints.h"
+#include "cf2font.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_cf2blues
+
+
+ /*
+ * For blue values, the FreeType parser produces an array of integers,
+ * while the Adobe CFF engine produces an array of fixed.
+ * Define a macro to convert FreeType to fixed.
+ */
+#define cf2_blueToFixed( x ) cf2_intToFixed( x )
+
+
+ FT_LOCAL_DEF( void )
+ cf2_blues_init( CF2_Blues blues,
+ CF2_Font font )
+ {
+ /* pointer to parsed font object */
+ CFF_Decoder* decoder = font->decoder;
+
+ CF2_Fixed zoneHeight;
+ CF2_Fixed maxZoneHeight = 0;
+ CF2_Fixed csUnitsPerPixel;
+
+ size_t numBlueValues;
+ size_t numOtherBlues;
+ size_t numFamilyBlues;
+ size_t numFamilyOtherBlues;
+
+ FT_Pos* blueValues;
+ FT_Pos* otherBlues;
+ FT_Pos* familyBlues;
+ FT_Pos* familyOtherBlues;
+
+ size_t i;
+ CF2_Fixed emBoxBottom, emBoxTop;
+
+ CF2_Int unitsPerEm = font->unitsPerEm;
+
+
+ if ( unitsPerEm == 0 )
+ unitsPerEm = 1000;
+
+ FT_ZERO( blues );
+ blues->scale = font->innerTransform.d;
+
+ cf2_getBlueMetrics( decoder,
+ &blues->blueScale,
+ &blues->blueShift,
+ &blues->blueFuzz );
+
+ cf2_getBlueValues( decoder, &numBlueValues, &blueValues );
+ cf2_getOtherBlues( decoder, &numOtherBlues, &otherBlues );
+ cf2_getFamilyBlues( decoder, &numFamilyBlues, &familyBlues );
+ cf2_getFamilyOtherBlues( decoder, &numFamilyOtherBlues, &familyOtherBlues );
+
+ /*
+ * synthetic em box hint heuristic
+ *
+ * Apply this when ideographic dictionary (LanguageGroup 1) has no
+ * real alignment zones. Adobe tools generate dummy zones at -250 and
+ * 1100 for a 1000 unit em. Fonts with ICF-based alignment zones
+ * should not enable the heuristic. When the heuristic is enabled,
+ * the font's blue zones are ignored.
+ *
+ */
+
+ /* get em box from OS/2 typoAscender/Descender */
+ /* TODO: FreeType does not parse these metrics. Skip them for now. */
+#if 0
+ FCM_getHorizontalLineMetrics( &e,
+ font->font,
+ &ascender,
+ &descender,
+ &linegap );
+ if ( ascender - descender == unitsPerEm )
+ {
+ emBoxBottom = cf2_intToFixed( descender );
+ emBoxTop = cf2_intToFixed( ascender );
+ }
+ else
+#endif
+ {
+ emBoxBottom = CF2_ICF_Bottom;
+ emBoxTop = CF2_ICF_Top;
+ }
+
+ if ( cf2_getLanguageGroup( decoder ) == 1 &&
+ ( numBlueValues == 0 ||
+ ( numBlueValues == 4 &&
+ cf2_blueToFixed( blueValues[0] ) < emBoxBottom &&
+ cf2_blueToFixed( blueValues[1] ) < emBoxBottom &&
+ cf2_blueToFixed( blueValues[2] ) > emBoxTop &&
+ cf2_blueToFixed( blueValues[3] ) > emBoxTop ) ) )
+ {
+ /*
+ * Construct hint edges suitable for synthetic ghost hints at top
+ * and bottom of em box. +-CF2_MIN_COUNTER allows for unhinted
+ * features above or below the last hinted edge. This also gives a
+ * net 1 pixel boost to the height of ideographic glyphs.
+ *
+ * Note: Adjust synthetic hints outward by epsilon (0x.0001) to
+ * avoid interference. E.g., some fonts have real hints at
+ * 880 and -120.
+ */
+
+ blues->emBoxBottomEdge.csCoord = emBoxBottom - CF2_FIXED_EPSILON;
+ blues->emBoxBottomEdge.dsCoord = cf2_fixedRound(
+ FT_MulFix(
+ blues->emBoxBottomEdge.csCoord,
+ blues->scale ) ) -
+ CF2_MIN_COUNTER;
+ blues->emBoxBottomEdge.scale = blues->scale;
+ blues->emBoxBottomEdge.flags = CF2_GhostBottom |
+ CF2_Locked |
+ CF2_Synthetic;
+
+ blues->emBoxTopEdge.csCoord = emBoxTop + CF2_FIXED_EPSILON +
+ 2 * font->darkenY;
+ blues->emBoxTopEdge.dsCoord = cf2_fixedRound(
+ FT_MulFix(
+ blues->emBoxTopEdge.csCoord,
+ blues->scale ) ) +
+ CF2_MIN_COUNTER;
+ blues->emBoxTopEdge.scale = blues->scale;
+ blues->emBoxTopEdge.flags = CF2_GhostTop |
+ CF2_Locked |
+ CF2_Synthetic;
+
+ blues->doEmBoxHints = TRUE; /* enable the heuristic */
+
+ return;
+ }
+
+ /* copy `BlueValues' and `OtherBlues' to a combined array of top and */
+ /* bottom zones */
+ for ( i = 0; i < numBlueValues; i += 2 )
+ {
+ blues->zone[blues->count].csBottomEdge =
+ cf2_blueToFixed( blueValues[i] );
+ blues->zone[blues->count].csTopEdge =
+ cf2_blueToFixed( blueValues[i + 1] );
+
+ zoneHeight = blues->zone[blues->count].csTopEdge -
+ blues->zone[blues->count].csBottomEdge;
+
+ if ( zoneHeight < 0 )
+ {
+ FT_TRACE4(( "cf2_blues_init: ignoring negative zone height\n" ));
+ continue; /* reject this zone */
+ }
+
+ if ( zoneHeight > maxZoneHeight )
+ {
+ /* take maximum before darkening adjustment */
+ /* so overshoot suppression point doesn't change */
+ maxZoneHeight = zoneHeight;
+ }
+
+ /* adjust both edges of top zone upward by twice darkening amount */
+ if ( i != 0 )
+ {
+ blues->zone[blues->count].csTopEdge += 2 * font->darkenY;
+ blues->zone[blues->count].csBottomEdge += 2 * font->darkenY;
+ }
+
+ /* first `BlueValue' is bottom zone; others are top */
+ if ( i == 0 )
+ {
+ blues->zone[blues->count].bottomZone =
+ TRUE;
+ blues->zone[blues->count].csFlatEdge =
+ blues->zone[blues->count].csTopEdge;
+ }
+ else
+ {
+ blues->zone[blues->count].bottomZone =
+ FALSE;
+ blues->zone[blues->count].csFlatEdge =
+ blues->zone[blues->count].csBottomEdge;
+ }
+
+ blues->count += 1;
+ }
+
+ for ( i = 0; i < numOtherBlues; i += 2 )
+ {
+ blues->zone[blues->count].csBottomEdge =
+ cf2_blueToFixed( otherBlues[i] );
+ blues->zone[blues->count].csTopEdge =
+ cf2_blueToFixed( otherBlues[i + 1] );
+
+ zoneHeight = blues->zone[blues->count].csTopEdge -
+ blues->zone[blues->count].csBottomEdge;
+
+ if ( zoneHeight < 0 )
+ {
+ FT_TRACE4(( "cf2_blues_init: ignoring negative zone height\n" ));
+ continue; /* reject this zone */
+ }
+
+ if ( zoneHeight > maxZoneHeight )
+ {
+ /* take maximum before darkening adjustment */
+ /* so overshoot suppression point doesn't change */
+ maxZoneHeight = zoneHeight;
+ }
+
+ /* Note: bottom zones are not adjusted for darkening amount */
+
+ /* all OtherBlues are bottom zone */
+ blues->zone[blues->count].bottomZone =
+ TRUE;
+ blues->zone[blues->count].csFlatEdge =
+ blues->zone[blues->count].csTopEdge;
+
+ blues->count += 1;
+ }
+
+ /* Adjust for FamilyBlues */
+
+ /* Search for the nearest flat edge in `FamilyBlues' or */
+ /* `FamilyOtherBlues'. According to the Black Book, any matching edge */
+ /* must be within one device pixel */
+
+ csUnitsPerPixel = FT_DivFix( cf2_intToFixed( 1 ), blues->scale );
+
+ /* loop on all zones in this font */
+ for ( i = 0; i < blues->count; i++ )
+ {
+ size_t j;
+ CF2_Fixed minDiff;
+ CF2_Fixed flatFamilyEdge, diff;
+ /* value for this font */
+ CF2_Fixed flatEdge = blues->zone[i].csFlatEdge;
+
+
+ if ( blues->zone[i].bottomZone )
+ {
+ /* In a bottom zone, the top edge is the flat edge. */
+ /* Search `FamilyOtherBlues' for bottom zones; look for closest */
+ /* Family edge that is within the one pixel threshold. */
+
+ minDiff = CF2_FIXED_MAX;
+
+ for ( j = 0; j < numFamilyOtherBlues; j += 2 )
+ {
+ /* top edge */
+ flatFamilyEdge = cf2_blueToFixed( familyOtherBlues[j + 1] );
+
+ diff = cf2_fixedAbs( flatEdge - flatFamilyEdge );
+
+ if ( diff < minDiff && diff < csUnitsPerPixel )
+ {
+ blues->zone[i].csFlatEdge = flatFamilyEdge;
+ minDiff = diff;
+
+ if ( diff == 0 )
+ break;
+ }
+ }
+
+ /* check the first member of FamilyBlues, which is a bottom zone */
+ if ( numFamilyBlues >= 2 )
+ {
+ /* top edge */
+ flatFamilyEdge = cf2_blueToFixed( familyBlues[1] );
+
+ diff = cf2_fixedAbs( flatEdge - flatFamilyEdge );
+
+ if ( diff < minDiff && diff < csUnitsPerPixel )
+ blues->zone[i].csFlatEdge = flatFamilyEdge;
+ }
+ }
+ else
+ {
+ /* In a top zone, the bottom edge is the flat edge. */
+ /* Search `FamilyBlues' for top zones; skip first zone, which is a */
+ /* bottom zone; look for closest Family edge that is within the */
+ /* one pixel threshold */
+
+ minDiff = CF2_FIXED_MAX;
+
+ for ( j = 2; j < numFamilyBlues; j += 2 )
+ {
+ /* bottom edge */
+ flatFamilyEdge = cf2_blueToFixed( familyBlues[j] );
+
+ /* adjust edges of top zone upward by twice darkening amount */
+ flatFamilyEdge += 2 * font->darkenY; /* bottom edge */
+
+ diff = cf2_fixedAbs( flatEdge - flatFamilyEdge );
+
+ if ( diff < minDiff && diff < csUnitsPerPixel )
+ {
+ blues->zone[i].csFlatEdge = flatFamilyEdge;
+ minDiff = diff;
+
+ if ( diff == 0 )
+ break;
+ }
+ }
+ }
+ }
+
+ /* TODO: enforce separation of zones, including BlueFuzz */
+
+ /* Adjust BlueScale; similar to AdjustBlueScale() in coretype */
+ /* `bcsetup.c'. */
+
+ if ( maxZoneHeight > 0 )
+ {
+ if ( blues->blueScale > FT_DivFix( cf2_intToFixed( 1 ),
+ maxZoneHeight ) )
+ {
+ /* clamp at maximum scale */
+ blues->blueScale = FT_DivFix( cf2_intToFixed( 1 ),
+ maxZoneHeight );
+ }
+
+ /*
+ * TODO: Revisit the bug fix for 613448. The minimum scale
+ * requirement catches a number of library fonts. For
+ * example, with default BlueScale (.039625) and 0.4 minimum,
+ * the test below catches any font with maxZoneHeight < 10.1.
+ * There are library fonts ranging from 2 to 10 that get
+ * caught, including e.g., Eurostile LT Std Medium with
+ * maxZoneHeight of 6.
+ *
+ */
+#if 0
+ if ( blueScale < .4 / maxZoneHeight )
+ {
+ tetraphilia_assert( 0 );
+ /* clamp at minimum scale, per bug 0613448 fix */
+ blueScale = .4 / maxZoneHeight;
+ }
+#endif
+
+ }
+
+ /*
+ * Suppress overshoot and boost blue zones at small sizes. Boost
+ * amount varies linearly from 0.5 pixel near 0 to 0 pixel at
+ * blueScale cutoff.
+ * Note: This boost amount is different from the coretype heuristic.
+ *
+ */
+
+ if ( blues->scale < blues->blueScale )
+ {
+ blues->suppressOvershoot = TRUE;
+
+ /* Change rounding threshold for `dsFlatEdge'. */
+ /* Note: constant changed from 0.5 to 0.6 to avoid a problem with */
+ /* 10ppem Arial */
+
+ blues->boost = FT_MulFix(
+ cf2_floatToFixed( .6 ),
+ ( cf2_intToFixed( 1 ) -
+ FT_DivFix( blues->scale,
+ blues->blueScale ) ) );
+ if ( blues->boost > 0x7FFF )
+ {
+ /* boost must remain less than 0.5, or baseline could go negative */
+ blues->boost = 0x7FFF;
+ }
+ }
+
+ /* boost and darkening have similar effects; don't do both */
+ if ( font->stemDarkened )
+ blues->boost = 0;
+
+ /* set device space alignment for each zone; */
+ /* apply boost amount before rounding flat edge */
+
+ for ( i = 0; i < blues->count; i++ )
+ {
+ if ( blues->zone[i].bottomZone )
+ blues->zone[i].dsFlatEdge = cf2_fixedRound(
+ FT_MulFix(
+ blues->zone[i].csFlatEdge,
+ blues->scale ) -
+ blues->boost );
+ else
+ blues->zone[i].dsFlatEdge = cf2_fixedRound(
+ FT_MulFix(
+ blues->zone[i].csFlatEdge,
+ blues->scale ) +
+ blues->boost );
+ }
+ }
+
+
+ /*
+ * Check whether `stemHint' is captured by one of the blue zones.
+ *
+ * Zero, one or both edges may be valid; only valid edges can be
+ * captured. For compatibility with CoolType, search top and bottom
+ * zones in the same pass (see `BlueLock'). If a hint is captured,
+ * return true and position the edge(s) in one of 3 ways:
+ *
+ * 1) If `BlueScale' suppresses overshoot, position the captured edge
+ * at the flat edge of the zone.
+ * 2) If overshoot is not suppressed and `BlueShift' requires
+ * overshoot, position the captured edge a minimum of 1 device pixel
+ * from the flat edge.
+ * 3) If overshoot is not suppressed or required, position the captured
+ * edge at the nearest device pixel.
+ *
+ */
+ FT_LOCAL_DEF( FT_Bool )
+ cf2_blues_capture( const CF2_Blues blues,
+ CF2_Hint bottomHintEdge,
+ CF2_Hint topHintEdge )
+ {
+ /* TODO: validate? */
+ CF2_Fixed csFuzz = blues->blueFuzz;
+
+ /* new position of captured edge */
+ CF2_Fixed dsNew;
+
+ /* amount that hint is moved when positioned */
+ CF2_Fixed dsMove = 0;
+
+ FT_Bool captured = FALSE;
+ CF2_UInt i;
+
+
+ /* assert edge flags are consistent */
+ FT_ASSERT( !cf2_hint_isTop( bottomHintEdge ) &&
+ !cf2_hint_isBottom( topHintEdge ) );
+
+ /* TODO: search once without blue fuzz for compatibility with coretype? */
+ for ( i = 0; i < blues->count; i++ )
+ {
+ if ( blues->zone[i].bottomZone &&
+ cf2_hint_isBottom( bottomHintEdge ) )
+ {
+ if ( ( blues->zone[i].csBottomEdge - csFuzz ) <=
+ bottomHintEdge->csCoord &&
+ bottomHintEdge->csCoord <=
+ ( blues->zone[i].csTopEdge + csFuzz ) )
+ {
+ /* bottom edge captured by bottom zone */
+
+ if ( blues->suppressOvershoot )
+ dsNew = blues->zone[i].dsFlatEdge;
+
+ else if ( ( blues->zone[i].csTopEdge - bottomHintEdge->csCoord ) >=
+ blues->blueShift )
+ {
+ /* guarantee minimum of 1 pixel overshoot */
+ dsNew = FT_MIN(
+ cf2_fixedRound( bottomHintEdge->dsCoord ),
+ blues->zone[i].dsFlatEdge - cf2_intToFixed( 1 ) );
+ }
+
+ else
+ {
+ /* simply round captured edge */
+ dsNew = cf2_fixedRound( bottomHintEdge->dsCoord );
+ }
+
+ dsMove = dsNew - bottomHintEdge->dsCoord;
+ captured = TRUE;
+
+ break;
+ }
+ }
+
+ if ( !blues->zone[i].bottomZone && cf2_hint_isTop( topHintEdge ) )
+ {
+ if ( ( blues->zone[i].csBottomEdge - csFuzz ) <=
+ topHintEdge->csCoord &&
+ topHintEdge->csCoord <=
+ ( blues->zone[i].csTopEdge + csFuzz ) )
+ {
+ /* top edge captured by top zone */
+
+ if ( blues->suppressOvershoot )
+ dsNew = blues->zone[i].dsFlatEdge;
+
+ else if ( ( topHintEdge->csCoord - blues->zone[i].csBottomEdge ) >=
+ blues->blueShift )
+ {
+ /* guarantee minimum of 1 pixel overshoot */
+ dsNew = FT_MAX(
+ cf2_fixedRound( topHintEdge->dsCoord ),
+ blues->zone[i].dsFlatEdge + cf2_intToFixed( 1 ) );
+ }
+
+ else
+ {
+ /* simply round captured edge */
+ dsNew = cf2_fixedRound( topHintEdge->dsCoord );
+ }
+
+ dsMove = dsNew - topHintEdge->dsCoord;
+ captured = TRUE;
+
+ break;
+ }
+ }
+ }
+
+ if ( captured )
+ {
+ /* move both edges and flag them `locked' */
+ if ( cf2_hint_isValid( bottomHintEdge ) )
+ {
+ bottomHintEdge->dsCoord += dsMove;
+ cf2_hint_lock( bottomHintEdge );
+ }
+
+ if ( cf2_hint_isValid( topHintEdge ) )
+ {
+ topHintEdge->dsCoord += dsMove;
+ cf2_hint_lock( topHintEdge );
+ }
+ }
+
+ return captured;
+ }
+
+
+/* END */
diff --git a/src/cff/cf2blues.h b/src/cff/cf2blues.h
new file mode 100644
index 0000000..2f38fca
--- /dev/null
+++ b/src/cff/cf2blues.h
@@ -0,0 +1,185 @@
+/***************************************************************************/
+/* */
+/* cf2blues.h */
+/* */
+/* Adobe's code for handling Blue Zones (specification). */
+/* */
+/* Copyright 2009-2013 Adobe Systems Incorporated. */
+/* */
+/* This software, and all works of authorship, whether in source or */
+/* object code form as indicated by the copyright notice(s) included */
+/* herein (collectively, the "Work") is made available, and may only be */
+/* used, modified, and distributed under the FreeType Project License, */
+/* LICENSE.TXT. Additionally, subject to the terms and conditions of the */
+/* FreeType Project License, each contributor to the Work hereby grants */
+/* to any individual or legal entity exercising permissions granted by */
+/* the FreeType Project License and this section (hereafter, "You" or */
+/* "Your") a perpetual, worldwide, non-exclusive, no-charge, */
+/* royalty-free, irrevocable (except as stated in this section) patent */
+/* license to make, have made, use, offer to sell, sell, import, and */
+/* otherwise transfer the Work, where such license applies only to those */
+/* patent claims licensable by such contributor that are necessarily */
+/* infringed by their contribution(s) alone or by combination of their */
+/* contribution(s) with the Work to which such contribution(s) was */
+/* submitted. If You institute patent litigation against any entity */
+/* (including a cross-claim or counterclaim in a lawsuit) alleging that */
+/* the Work or a contribution incorporated within the Work constitutes */
+/* direct or contributory patent infringement, then any patent licenses */
+/* granted to You under this License for that Work shall terminate as of */
+/* the date such litigation is filed. */
+/* */
+/* By using, modifying, or distributing the Work you indicate that you */
+/* have read and understood the terms and conditions of the */
+/* FreeType Project License as well as those provided in this section, */
+/* and you accept them fully. */
+/* */
+/***************************************************************************/
+
+
+ /*
+ * A `CF2_Blues' object stores the blue zones (horizontal alignment
+ * zones) of a font. These are specified in the CFF private dictionary
+ * by `BlueValues', `OtherBlues', `FamilyBlues', and `FamilyOtherBlues'.
+ * Each zone is defined by a top and bottom edge in character space.
+ * Further, each zone is either a top zone or a bottom zone, as recorded
+ * by `bottomZone'.
+ *
+ * The maximum number of `BlueValues' and `FamilyBlues' is 7 each.
+ * However, these are combined to produce a total of 7 zones.
+ * Similarly, the maximum number of `OtherBlues' and `FamilyOtherBlues'
+ * is 5 and these are combined to produce an additional 5 zones.
+ *
+ * Blue zones are used to `capture' hints and force them to a common
+ * alignment point. This alignment is recorded in device space in
+ * `dsFlatEdge'. Except for this value, a `CF2_Blues' object could be
+ * constructed independently of scaling. Construction may occur once
+ * the matrix is known. Other features implemented in the Capture
+ * method are overshoot suppression, overshoot enforcement, and Blue
+ * Boost.
+ *
+ * Capture is determined by `BlueValues' and `OtherBlues', but the
+ * alignment point may be adjusted to the scaled flat edge of
+ * `FamilyBlues' or `FamilyOtherBlues'. No alignment is done to the
+ * curved edge of a zone.
+ *
+ */
+
+
+#ifndef __CF2BLUES_H__
+#define __CF2BLUES_H__
+
+
+#include "cf2glue.h"
+
+
+FT_BEGIN_HEADER
+
+
+ /*
+ * `CF2_Hint' is shared by `cf2hints.h' and
+ * `cf2blues.h', but `cf2blues.h' depends on
+ * `cf2hints.h', so define it here. Note: The typedef is in
+ * `cf2glue.h'.
+ *
+ */
+ enum
+ {
+ CF2_GhostBottom = 0x1, /* a single bottom edge */
+ CF2_GhostTop = 0x2, /* a single top edge */
+ CF2_PairBottom = 0x4, /* the bottom edge of a stem hint */
+ CF2_PairTop = 0x8, /* the top edge of a stem hint */
+ CF2_Locked = 0x10, /* this edge has been aligned */
+ /* by a blue zone */
+ CF2_Synthetic = 0x20 /* this edge was synthesized */
+ };
+
+
+ /*
+ * Default value for OS/2 typoAscender/Descender when their difference
+ * is not equal to `unitsPerEm'. The default is based on -250 and 1100
+ * in `CF2_Blues', assuming 1000 units per em here.
+ *
+ */
+ enum
+ {
+ CF2_ICF_Top = cf2_intToFixed( 880 ),
+ CF2_ICF_Bottom = cf2_intToFixed( -120 )
+ };
+
+
+ /*
+ * Constant used for hint adjustment and for synthetic em box hint
+ * placement.
+ */
+#define CF2_MIN_COUNTER cf2_floatToFixed( 0.5 )
+
+
+ /* shared typedef is in cf2glue.h */
+ struct CF2_HintRec_
+ {
+ CF2_UInt flags; /* attributes of the edge */
+ size_t index; /* index in original stem hint array */
+ /* (if not synthetic) */
+ CF2_Fixed csCoord;
+ CF2_Fixed dsCoord;
+ CF2_Fixed scale;
+ };
+
+
+ typedef struct CF2_BlueRec_
+ {
+ CF2_Fixed csBottomEdge;
+ CF2_Fixed csTopEdge;
+ CF2_Fixed csFlatEdge; /* may be from either local or Family zones */
+ CF2_Fixed dsFlatEdge; /* top edge of bottom zone or bottom edge */
+ /* of top zone (rounded) */
+ FT_Bool bottomZone;
+
+ } CF2_BlueRec;
+
+
+ /* max total blue zones is 12 */
+ enum
+ {
+ CF2_MAX_BLUES = 7,
+ CF2_MAX_OTHERBLUES = 5
+ };
+
+
+ typedef struct CF2_BluesRec_
+ {
+ CF2_Fixed scale;
+ CF2_UInt count;
+ FT_Bool suppressOvershoot;
+ FT_Bool doEmBoxHints;
+
+ CF2_Fixed blueScale;
+ CF2_Fixed blueShift;
+ CF2_Fixed blueFuzz;
+
+ CF2_Fixed boost;
+
+ CF2_HintRec emBoxTopEdge;
+ CF2_HintRec emBoxBottomEdge;
+
+ CF2_BlueRec zone[CF2_MAX_BLUES + CF2_MAX_OTHERBLUES];
+
+ } CF2_BluesRec, *CF2_Blues;
+
+
+ FT_LOCAL( void )
+ cf2_blues_init( CF2_Blues blues,
+ CF2_Font font );
+ FT_LOCAL( FT_Bool )
+ cf2_blues_capture( const CF2_Blues blues,
+ CF2_Hint bottomHintEdge,
+ CF2_Hint topHintEdge );
+
+
+FT_END_HEADER
+
+
+#endif /* __CF2BLUES_H__ */
+
+
+/* END */
diff --git a/src/cff/cf2error.c b/src/cff/cf2error.c
new file mode 100644
index 0000000..b5595a3
--- /dev/null
+++ b/src/cff/cf2error.c
@@ -0,0 +1,52 @@
+/***************************************************************************/
+/* */
+/* cf2error.c */
+/* */
+/* Adobe's code for error handling (body). */
+/* */
+/* Copyright 2006-2013 Adobe Systems Incorporated. */
+/* */
+/* This software, and all works of authorship, whether in source or */
+/* object code form as indicated by the copyright notice(s) included */
+/* herein (collectively, the "Work") is made available, and may only be */
+/* used, modified, and distributed under the FreeType Project License, */
+/* LICENSE.TXT. Additionally, subject to the terms and conditions of the */
+/* FreeType Project License, each contributor to the Work hereby grants */
+/* to any individual or legal entity exercising permissions granted by */
+/* the FreeType Project License and this section (hereafter, "You" or */
+/* "Your") a perpetual, worldwide, non-exclusive, no-charge, */
+/* royalty-free, irrevocable (except as stated in this section) patent */
+/* license to make, have made, use, offer to sell, sell, import, and */
+/* otherwise transfer the Work, where such license applies only to those */
+/* patent claims licensable by such contributor that are necessarily */
+/* infringed by their contribution(s) alone or by combination of their */
+/* contribution(s) with the Work to which such contribution(s) was */
+/* submitted. If You institute patent litigation against any entity */
+/* (including a cross-claim or counterclaim in a lawsuit) alleging that */
+/* the Work or a contribution incorporated within the Work constitutes */
+/* direct or contributory patent infringement, then any patent licenses */
+/* granted to You under this License for that Work shall terminate as of */
+/* the date such litigation is filed. */
+/* */
+/* By using, modifying, or distributing the Work you indicate that you */
+/* have read and understood the terms and conditions of the */
+/* FreeType Project License as well as those provided in this section, */
+/* and you accept them fully. */
+/* */
+/***************************************************************************/
+
+
+#include "cf2ft.h"
+#include "cf2error.h"
+
+
+ FT_LOCAL_DEF( void )
+ cf2_setError( FT_Error* error,
+ FT_Error value )
+ {
+ if ( error && *error == 0 )
+ *error = value;
+ }
+
+
+/* END */
diff --git a/src/cff/cf2error.h b/src/cff/cf2error.h
new file mode 100644
index 0000000..6453ebc
--- /dev/null
+++ b/src/cff/cf2error.h
@@ -0,0 +1,119 @@
+/***************************************************************************/
+/* */
+/* cf2error.h */
+/* */
+/* Adobe's code for error handling (specification). */
+/* */
+/* Copyright 2006-2013 Adobe Systems Incorporated. */
+/* */
+/* This software, and all works of authorship, whether in source or */
+/* object code form as indicated by the copyright notice(s) included */
+/* herein (collectively, the "Work") is made available, and may only be */
+/* used, modified, and distributed under the FreeType Project License, */
+/* LICENSE.TXT. Additionally, subject to the terms and conditions of the */
+/* FreeType Project License, each contributor to the Work hereby grants */
+/* to any individual or legal entity exercising permissions granted by */
+/* the FreeType Project License and this section (hereafter, "You" or */
+/* "Your") a perpetual, worldwide, non-exclusive, no-charge, */
+/* royalty-free, irrevocable (except as stated in this section) patent */
+/* license to make, have made, use, offer to sell, sell, import, and */
+/* otherwise transfer the Work, where such license applies only to those */
+/* patent claims licensable by such contributor that are necessarily */
+/* infringed by their contribution(s) alone or by combination of their */
+/* contribution(s) with the Work to which such contribution(s) was */
+/* submitted. If You institute patent litigation against any entity */
+/* (including a cross-claim or counterclaim in a lawsuit) alleging that */
+/* the Work or a contribution incorporated within the Work constitutes */
+/* direct or contributory patent infringement, then any patent licenses */
+/* granted to You under this License for that Work shall terminate as of */
+/* the date such litigation is filed. */
+/* */
+/* By using, modifying, or distributing the Work you indicate that you */
+/* have read and understood the terms and conditions of the */
+/* FreeType Project License as well as those provided in this section, */
+/* and you accept them fully. */
+/* */
+/***************************************************************************/
+
+
+#ifndef __CF2ERROR_H__
+#define __CF2ERROR_H__
+
+
+#include FT_MODULE_ERRORS_H
+
+#undef __FTERRORS_H__
+
+#undef FT_ERR_PREFIX
+#define FT_ERR_PREFIX CF2_Err_
+#define FT_ERR_BASE FT_Mod_Err_CF2
+
+
+#include FT_ERRORS_H
+#include "cf2ft.h"
+
+
+FT_BEGIN_HEADER
+
+
+ /*
+ * A poor-man error facility.
+ *
+ * This code being written in vanilla C, doesn't have the luxury of a
+ * language-supported exception mechanism such as the one available in
+ * Java. Instead, we are stuck with using error codes that must be
+ * carefully managed and preserved. However, it is convenient for us to
+ * model our error mechanism on a Java-like exception mechanism.
+ * When we assign an error code we are thus `throwing' an error.
+ *
+ * The perservation of an error code is done by coding convention.
+ * Upon a function call if the error code is anything other than
+ * `FT_Err_Ok', which is guaranteed to be zero, we
+ * will return without altering that error. This will allow the
+ * error to propogate and be handled at the appropriate location in
+ * the code.
+ *
+ * This allows a style of code where the error code is initialized
+ * up front and a block of calls are made with the error code only
+ * being checked after the block. If a new error occurs, the original
+ * error will be preserved and a functional no-op should result in any
+ * subsequent function that has an initial error code not equal to
+ * `FT_Err_Ok'.
+ *
+ * Errors are encoded by calling the `FT_THROW' macro. For example,
+ *
+ * {
+ * FT_Error e;
+ *
+ *
+ * ...
+ * e = FT_THROW( Out_Of_Memory );
+ * }
+ *
+ */
+
+
+ /* Set error code to a particular value. */
+ FT_LOCAL( void )
+ cf2_setError( FT_Error* error,
+ FT_Error value );
+
+
+ /*
+ * A macro that conditionally sets an error code.
+ *
+ * This macro will first check whether `error' is set;
+ * if not, it will set it to `e'.
+ *
+ */
+#define CF2_SET_ERROR( error, e ) \
+ cf2_setError( error, FT_THROW( e ) )
+
+
+FT_END_HEADER
+
+
+#endif /* __CF2ERROR_H__ */
+
+
+/* END */
diff --git a/src/cff/cf2fixed.h b/src/cff/cf2fixed.h
new file mode 100644
index 0000000..ed1452a
--- /dev/null
+++ b/src/cff/cf2fixed.h
@@ -0,0 +1,95 @@
+/***************************************************************************/
+/* */
+/* cf2fixed.h */
+/* */
+/* Adobe's code for Fixed Point Mathematics (specification only). */
+/* */
+/* Copyright 2007-2013 Adobe Systems Incorporated. */
+/* */
+/* This software, and all works of authorship, whether in source or */
+/* object code form as indicated by the copyright notice(s) included */
+/* herein (collectively, the "Work") is made available, and may only be */
+/* used, modified, and distributed under the FreeType Project License, */
+/* LICENSE.TXT. Additionally, subject to the terms and conditions of the */
+/* FreeType Project License, each contributor to the Work hereby grants */
+/* to any individual or legal entity exercising permissions granted by */
+/* the FreeType Project License and this section (hereafter, "You" or */
+/* "Your") a perpetual, worldwide, non-exclusive, no-charge, */
+/* royalty-free, irrevocable (except as stated in this section) patent */
+/* license to make, have made, use, offer to sell, sell, import, and */
+/* otherwise transfer the Work, where such license applies only to those */
+/* patent claims licensable by such contributor that are necessarily */
+/* infringed by their contribution(s) alone or by combination of their */
+/* contribution(s) with the Work to which such contribution(s) was */
+/* submitted. If You institute patent litigation against any entity */
+/* (including a cross-claim or counterclaim in a lawsuit) alleging that */
+/* the Work or a contribution incorporated within the Work constitutes */
+/* direct or contributory patent infringement, then any patent licenses */
+/* granted to You under this License for that Work shall terminate as of */
+/* the date such litigation is filed. */
+/* */
+/* By using, modifying, or distributing the Work you indicate that you */
+/* have read and understood the terms and conditions of the */
+/* FreeType Project License as well as those provided in this section, */
+/* and you accept them fully. */
+/* */
+/***************************************************************************/
+
+
+#ifndef __CF2FIXED_H__
+#define __CF2FIXED_H__
+
+
+FT_BEGIN_HEADER
+
+
+ /* rasterizer integer and fixed point arithmetic must be 32-bit */
+
+#define CF2_Fixed CF2_F16Dot16
+ typedef FT_Int32 CF2_Frac; /* 2.30 fixed point */
+
+
+#define CF2_FIXED_MAX ( (CF2_Fixed)0x7FFFFFFFL )
+#define CF2_FIXED_MIN ( (CF2_Fixed)0x80000000L )
+#define CF2_FIXED_ONE 0x10000L
+#define CF2_FIXED_EPSILON 0x0001
+
+ /* in C 89, left and right shift of negative numbers is */
+ /* implementation specific behaviour in the general case */
+
+#define cf2_intToFixed( i ) \
+ ( (CF2_Fixed)( (FT_UInt32)(i) << 16 ) )
+#define cf2_fixedToInt( x ) \
+ ( (FT_Short)( ( (FT_UInt32)(x) + 0x8000U ) >> 16 ) )
+#define cf2_fixedRound( x ) \
+ ( (CF2_Fixed)( ( (x) + 0x8000 ) & 0xFFFF0000L ) )
+#define cf2_floatToFixed( f ) \
+ ( (CF2_Fixed)( (f) * 65536.0 + 0.5 ) )
+#define cf2_fixedAbs( x ) \
+ ( (x) < 0 ? -(x) : (x) )
+#define cf2_fixedFloor( x ) \
+ ( (CF2_Fixed)( (x) & 0xFFFF0000L ) )
+#define cf2_fixedFraction( x ) \
+ ( (x) - cf2_fixedFloor( x ) )
+#define cf2_fracToFixed( x ) \
+ ( (x) < 0 ? -( ( -(x) + 0x2000 ) >> 14 ) \
+ : ( ( (x) + 0x2000 ) >> 14 ) )
+
+
+ /* signed numeric types */
+ typedef enum CF2_NumberType_
+ {
+ CF2_NumberFixed, /* 16.16 */
+ CF2_NumberFrac, /* 2.30 */
+ CF2_NumberInt /* 32.0 */
+
+ } CF2_NumberType;
+
+
+FT_END_HEADER
+
+
+#endif /* __CF2FIXED_H__ */
+
+
+/* END */
diff --git a/src/cff/cf2font.c b/src/cff/cf2font.c
new file mode 100644
index 0000000..8b2331d
--- /dev/null
+++ b/src/cff/cf2font.c
@@ -0,0 +1,401 @@
+/***************************************************************************/
+/* */
+/* cf2font.c */
+/* */
+/* Adobe's code for font instances (body). */
+/* */
+/* Copyright 2007-2013 Adobe Systems Incorporated. */
+/* */
+/* This software, and all works of authorship, whether in source or */
+/* object code form as indicated by the copyright notice(s) included */
+/* herein (collectively, the "Work") is made available, and may only be */
+/* used, modified, and distributed under the FreeType Project License, */
+/* LICENSE.TXT. Additionally, subject to the terms and conditions of the */
+/* FreeType Project License, each contributor to the Work hereby grants */
+/* to any individual or legal entity exercising permissions granted by */
+/* the FreeType Project License and this section (hereafter, "You" or */
+/* "Your") a perpetual, worldwide, non-exclusive, no-charge, */
+/* royalty-free, irrevocable (except as stated in this section) patent */
+/* license to make, have made, use, offer to sell, sell, import, and */
+/* otherwise transfer the Work, where such license applies only to those */
+/* patent claims licensable by such contributor that are necessarily */
+/* infringed by their contribution(s) alone or by combination of their */
+/* contribution(s) with the Work to which such contribution(s) was */
+/* submitted. If You institute patent litigation against any entity */
+/* (including a cross-claim or counterclaim in a lawsuit) alleging that */
+/* the Work or a contribution incorporated within the Work constitutes */
+/* direct or contributory patent infringement, then any patent licenses */
+/* granted to You under this License for that Work shall terminate as of */
+/* the date such litigation is filed. */
+/* */
+/* By using, modifying, or distributing the Work you indicate that you */
+/* have read and understood the terms and conditions of the */
+/* FreeType Project License as well as those provided in this section, */
+/* and you accept them fully. */
+/* */
+/***************************************************************************/
+
+
+#include "cf2ft.h"
+
+#include "cf2glue.h"
+#include "cf2font.h"
+#include "cf2error.h"
+#include "cf2intrp.h"
+
+
+ /* Compute a stem darkening amount in character space. */
+ static void
+ cf2_computeDarkening( CF2_Fixed emRatio,
+ CF2_Fixed ppem,
+ CF2_Fixed stemWidth,
+ CF2_Fixed* darkenAmount,
+ CF2_Fixed boldenAmount,
+ FT_Bool stemDarkened )
+ {
+ /* Internal calculations are done in units per thousand for */
+ /* convenience. */
+ CF2_Fixed stemWidthPer1000, scaledStem;
+
+
+ *darkenAmount = 0;
+
+ if ( boldenAmount == 0 && !stemDarkened )
+ return;
+
+ /* protect against range problems and divide by zero */
+ if ( emRatio < cf2_floatToFixed( .01 ) )
+ return;
+
+ if ( stemDarkened )
+ {
+ /* convert from true character space to 1000 unit character space; */
+ /* add synthetic emboldening effect */
+
+ /* we have to assure that the computation of `scaledStem' */
+ /* and `stemWidthPer1000' don't overflow */
+
+ stemWidthPer1000 = FT_MulFix( stemWidth + boldenAmount, emRatio );
+
+ if ( emRatio > CF2_FIXED_ONE &&
+ stemWidthPer1000 <= ( stemWidth + boldenAmount ) )
+ {
+ stemWidthPer1000 = 0; /* to pacify compiler */
+ scaledStem = cf2_intToFixed( 2333 );
+ }
+ else
+ {
+ scaledStem = FT_MulFix( stemWidthPer1000, ppem );
+
+ if ( ppem > CF2_FIXED_ONE &&
+ scaledStem <= stemWidthPer1000 )
+ scaledStem = cf2_intToFixed( 2333 );
+ }
+
+ /*
+ * Total darkening amount is computed in 1000 unit character space
+ * using the modified 5 part curve as Avalon rasterizer.
+ * The darkening amount is smaller for thicker stems.
+ * It becomes zero when the stem is thicker than 2.333 pixels.
+ *
+ * In Avalon rasterizer,
+ *
+ * darkenAmount = 0.5 pixels if scaledStem <= 0.5 pixels,
+ * darkenAmount = 0.333 pixels if 1 <= scaledStem <= 1.667 pixels,
+ * darkenAmount = 0 pixel if scaledStem >= 2.333 pixels,
+ *
+ * and piecewise linear in-between.
+ *
+ */
+ if ( scaledStem < cf2_intToFixed( 500 ) )
+ *darkenAmount = FT_DivFix( cf2_intToFixed( 400 ), ppem );
+
+ else if ( scaledStem < cf2_intToFixed( 1000 ) )
+ *darkenAmount = FT_DivFix( cf2_intToFixed( 525 ), ppem ) -
+ FT_MulFix( stemWidthPer1000,
+ cf2_floatToFixed( .25 ) );
+
+ else if ( scaledStem < cf2_intToFixed( 1667 ) )
+ *darkenAmount = FT_DivFix( cf2_intToFixed( 275 ), ppem );
+
+ else if ( scaledStem < cf2_intToFixed( 2333 ) )
+ *darkenAmount = FT_DivFix( cf2_intToFixed( 963 ), ppem ) -
+ FT_MulFix( stemWidthPer1000,
+ cf2_floatToFixed( .413 ) );
+
+ /* use half the amount on each side and convert back to true */
+ /* character space */
+ *darkenAmount = FT_DivFix( *darkenAmount, 2 * emRatio );
+ }
+
+ /* add synthetic emboldening effect in character space */
+ *darkenAmount += boldenAmount / 2;
+ }
+
+
+ /* set up values for the current FontDict and matrix */
+
+ /* caller's transform is adjusted for subpixel positioning */
+ static void
+ cf2_font_setup( CF2_Font font,
+ const CF2_Matrix* transform )
+ {
+ /* pointer to parsed font object */
+ CFF_Decoder* decoder = font->decoder;
+
+ FT_Bool needExtraSetup;
+
+ /* character space units */
+ CF2_Fixed boldenX = font->syntheticEmboldeningAmountX;
+ CF2_Fixed boldenY = font->syntheticEmboldeningAmountY;
+
+ CF2_Fixed ppem;
+
+
+ /* clear previous error */
+ font->error = FT_Err_Ok;
+
+ /* if a CID fontDict has changed, we need to recompute some cached */
+ /* data */
+ needExtraSetup = font->lastSubfont != cf2_getSubfont( decoder );
+
+ /* if ppem has changed, we need to recompute some cached data */
+ /* note: because of CID font matrix concatenation, ppem and transform */
+ /* do not necessarily track. */
+ ppem = cf2_getPpemY( decoder );
+ if ( font->ppem != ppem )
+ {
+ font->ppem = ppem;
+ needExtraSetup = TRUE;
+ }
+
+ /* copy hinted flag on each call */
+ font->hinted = font->renderingFlags & CF2_FlagsHinted;
+
+ /* determine if transform has changed; */
+ /* include Fontmatrix but ignore translation */
+ if ( ft_memcmp( transform,
+ &font->currentTransform,
+ 4 * sizeof ( CF2_Fixed ) ) != 0 )
+ {
+ /* save `key' information for `cache of one' matrix data; */
+ /* save client transform, without the translation */
+ font->currentTransform = *transform;
+ font->currentTransform.tx =
+ font->currentTransform.ty = cf2_intToFixed( 0 );
+
+ /* TODO: FreeType transform is simple scalar; for now, use identity */
+ /* for outer */
+ font->innerTransform = *transform;
+ font->outerTransform.a =
+ font->outerTransform.d = cf2_intToFixed( 1 );
+ font->outerTransform.b =
+ font->outerTransform.c = cf2_intToFixed( 0 );
+
+ needExtraSetup = TRUE;
+ }
+
+ /*
+ * font->darkened is set to true if there is a stem darkening request or
+ * the font is synthetic emboldened.
+ * font->darkened controls whether to adjust blue zones, winding order,
+ * and hinting.
+ *
+ */
+ if ( font->stemDarkened != ( font->renderingFlags & CF2_FlagsDarkened ) )
+ {
+ font->stemDarkened = font->renderingFlags & CF2_FlagsDarkened;
+
+ /* blue zones depend on darkened flag */
+ needExtraSetup = TRUE;
+ }
+
+ /* recompute variables that are dependent on transform or FontDict or */
+ /* darken flag */
+ if ( needExtraSetup )
+ {
+ /* StdVW is found in the private dictionary; */
+ /* recompute darkening amounts whenever private dictionary or */
+ /* transform change */
+ /* Note: a rendering flag turns darkening on or off, so we want to */
+ /* store the `on' amounts; */
+ /* darkening amount is computed in character space */
+ /* TODO: testing size-dependent darkening here; */
+ /* what to do for rotations? */
+
+ CF2_Fixed emRatio;
+ CF2_Fixed stdHW;
+ CF2_Int unitsPerEm = font->unitsPerEm;
+
+
+ if ( unitsPerEm == 0 )
+ unitsPerEm = 1000;
+
+ ppem = FT_MAX( cf2_intToFixed( 4 ),
+ font->ppem ); /* use minimum ppem of 4 */
+
+#if 0
+ /* since vstem is measured in the x-direction, we use the `a' member */
+ /* of the fontMatrix */
+ emRatio = cf2_fixedFracMul( cf2_intToFixed( 1000 ), fontMatrix->a );
+#endif
+
+ /* Freetype does not preserve the fontMatrix when parsing; use */
+ /* unitsPerEm instead. */
+ /* TODO: check precision of this */
+ emRatio = cf2_intToFixed( 1000 ) / unitsPerEm;
+ font->stdVW = cf2_getStdVW( decoder );
+
+ if ( font->stdVW <= 0 )
+ font->stdVW = FT_DivFix( cf2_intToFixed( 75 ), emRatio );
+
+ if ( boldenX > 0 )
+ {
+ /* Ensure that boldenX is at least 1 pixel for synthetic bold font */
+ /* (similar to what Avalon does) */
+ boldenX = FT_MAX( boldenX,
+ FT_DivFix( cf2_intToFixed( unitsPerEm ), ppem ) );
+
+ /* Synthetic emboldening adds at least 1 pixel to darkenX, while */
+ /* stem darkening adds at most half pixel. Since the purpose of */
+ /* stem darkening (readability at small sizes) is met with */
+ /* synthetic emboldening, no need to add stem darkening for a */
+ /* synthetic bold font. */
+ cf2_computeDarkening( emRatio,
+ ppem,
+ font->stdVW,
+ &font->darkenX,
+ boldenX,
+ FALSE );
+ }
+ else
+ cf2_computeDarkening( emRatio,
+ ppem,
+ font->stdVW,
+ &font->darkenX,
+ 0,
+ font->stemDarkened );
+
+#if 0
+ /* since hstem is measured in the y-direction, we use the `d' member */
+ /* of the fontMatrix */
+ /* TODO: use the same units per em as above; check this */
+ emRatio = cf2_fixedFracMul( cf2_intToFixed( 1000 ), fontMatrix->d );
+#endif
+
+ /* set the default stem width, because it must be the same for all */
+ /* family members; */
+ /* choose a constant for StdHW that depends on font contrast */
+ stdHW = cf2_getStdHW( decoder );
+
+ if ( stdHW > 0 && font->stdVW > 2 * stdHW )
+ font->stdHW = FT_DivFix( cf2_intToFixed( 75 ), emRatio );
+ else
+ {
+ /* low contrast font gets less hstem darkening */
+ font->stdHW = FT_DivFix( cf2_intToFixed( 110 ), emRatio );
+ }
+
+ cf2_computeDarkening( emRatio,
+ ppem,
+ font->stdHW,
+ &font->darkenY,
+ boldenY,
+ font->stemDarkened );
+
+ if ( font->darkenX != 0 || font->darkenY != 0 )
+ font->darkened = TRUE;
+ else
+ font->darkened = FALSE;
+
+ font->reverseWinding = FALSE; /* initial expectation is CCW */
+
+ /* compute blue zones for this instance */
+ cf2_blues_init( &font->blues, font );
+ }
+ }
+
+
+ /* equivalent to AdobeGetOutline */
+ FT_LOCAL_DEF( FT_Error )
+ cf2_getGlyphOutline( CF2_Font font,
+ CF2_Buffer charstring,
+ const CF2_Matrix* transform,
+ CF2_F16Dot16* glyphWidth )
+ {
+ FT_Error lastError = FT_Err_Ok;
+
+ FT_Vector translation;
+
+#if 0
+ FT_Vector advancePoint;
+#endif
+
+ CF2_Fixed advWidth = 0;
+ FT_Bool needWinding;
+
+
+ /* Note: use both integer and fraction for outlines. This allows bbox */
+ /* to come out directly. */
+
+ translation.x = transform->tx;
+ translation.y = transform->ty;
+
+ /* set up values based on transform */
+ cf2_font_setup( font, transform );
+ if ( font->error )
+ goto exit; /* setup encountered an error */
+
+ /* reset darken direction */
+ font->reverseWinding = FALSE;
+
+ /* winding order only affects darkening */
+ needWinding = font->darkened;
+
+ while ( 1 )
+ {
+ /* reset output buffer */
+ cf2_outline_reset( &font->outline );
+
+ /* build the outline, passing the full translation */
+ cf2_interpT2CharString( font,
+ charstring,
+ (CF2_OutlineCallbacks)&font->outline,
+ &translation,
+ FALSE,
+ 0,
+ 0,
+ &advWidth );
+
+ if ( font->error )
+ goto exit;
+
+ if ( !needWinding )
+ break;
+
+ /* check winding order */
+ if ( font->outline.root.windingMomentum >= 0 ) /* CFF is CCW */
+ break;
+
+ /* invert darkening and render again */
+ /* TODO: this should be a parameter to getOutline-computeOffset */
+ font->reverseWinding = TRUE;
+
+ needWinding = FALSE; /* exit after next iteration */
+ }
+
+ /* finish storing client outline */
+ cf2_outline_close( &font->outline );
+
+ exit:
+ /* FreeType just wants the advance width; there is no translation */
+ *glyphWidth = advWidth;
+
+ /* free resources and collect errors from objects we've used */
+ cf2_setError( &font->error, lastError );
+
+ return font->error;
+ }
+
+
+/* END */
diff --git a/src/cff/cf2font.h b/src/cff/cf2font.h
new file mode 100644
index 0000000..f9dd1bb
--- /dev/null
+++ b/src/cff/cf2font.h
@@ -0,0 +1,114 @@
+/***************************************************************************/
+/* */
+/* cf2font.h */
+/* */
+/* Adobe's code for font instances (specification). */
+/* */
+/* Copyright 2007-2013 Adobe Systems Incorporated. */
+/* */
+/* This software, and all works of authorship, whether in source or */
+/* object code form as indicated by the copyright notice(s) included */
+/* herein (collectively, the "Work") is made available, and may only be */
+/* used, modified, and distributed under the FreeType Project License, */
+/* LICENSE.TXT. Additionally, subject to the terms and conditions of the */
+/* FreeType Project License, each contributor to the Work hereby grants */
+/* to any individual or legal entity exercising permissions granted by */
+/* the FreeType Project License and this section (hereafter, "You" or */
+/* "Your") a perpetual, worldwide, non-exclusive, no-charge, */
+/* royalty-free, irrevocable (except as stated in this section) patent */
+/* license to make, have made, use, offer to sell, sell, import, and */
+/* otherwise transfer the Work, where such license applies only to those */
+/* patent claims licensable by such contributor that are necessarily */
+/* infringed by their contribution(s) alone or by combination of their */
+/* contribution(s) with the Work to which such contribution(s) was */
+/* submitted. If You institute patent litigation against any entity */
+/* (including a cross-claim or counterclaim in a lawsuit) alleging that */
+/* the Work or a contribution incorporated within the Work constitutes */
+/* direct or contributory patent infringement, then any patent licenses */
+/* granted to You under this License for that Work shall terminate as of */
+/* the date such litigation is filed. */
+/* */
+/* By using, modifying, or distributing the Work you indicate that you */
+/* have read and understood the terms and conditions of the */
+/* FreeType Project License as well as those provided in this section, */
+/* and you accept them fully. */
+/* */
+/***************************************************************************/
+
+
+#ifndef __CF2FONT_H__
+#define __CF2FONT_H__
+
+
+#include "cf2ft.h"
+#include "cf2blues.h"
+
+
+FT_BEGIN_HEADER
+
+
+#define CF2_OPERAND_STACK_SIZE 48
+#define CF2_MAX_SUBR 10 /* maximum subroutine nesting */
+
+
+ /* typedef is in `cf2glue.h' */
+ struct CF2_FontRec_
+ {
+ FT_Memory memory;
+ FT_Error error; /* shared error for this instance */
+
+ CF2_RenderingFlags renderingFlags;
+
+ /* variables that depend on Transform: */
+ /* the following have zero translation; */
+ /* inner * outer = font * original */
+
+ CF2_Matrix currentTransform; /* original client matrix */
+ CF2_Matrix innerTransform; /* for hinting; erect, scaled */
+ CF2_Matrix outerTransform; /* post hinting; includes rotations */
+ CF2_Fixed ppem; /* transform-dependent */
+
+ CF2_Int unitsPerEm;
+
+ CF2_Fixed syntheticEmboldeningAmountX; /* character space units */
+ CF2_Fixed syntheticEmboldeningAmountY; /* character space units */
+
+ /* FreeType related members */
+ CF2_OutlineRec outline; /* freetype glyph outline functions */
+ CFF_Decoder* decoder;
+ CFF_SubFont lastSubfont; /* FreeType parsed data; */
+ /* top font or subfont */
+
+ /* these flags can vary from one call to the next */
+ FT_Bool hinted;
+ FT_Bool darkened; /* true if stemDarkened or synthetic bold */
+ /* i.e. darkenX != 0 || darkenY != 0 */
+ FT_Bool stemDarkened;
+
+ /* variables that depend on both FontDict and Transform */
+ CF2_Fixed stdVW; /* in character space; depends on dict entry */
+ CF2_Fixed stdHW; /* in character space; depends on dict entry */
+ CF2_Fixed darkenX; /* character space units */
+ CF2_Fixed darkenY; /* depends on transform */
+ /* and private dict (StdVW) */
+ FT_Bool reverseWinding; /* darken assuming */
+ /* counterclockwise winding */
+
+ CF2_BluesRec blues; /* computed zone data */
+ };
+
+
+ FT_LOCAL( FT_Error )
+ cf2_getGlyphOutline( CF2_Font font,
+ CF2_Buffer charstring,
+ const CF2_Matrix* transform,
+ CF2_F16Dot16* glyphWidth );
+
+
+FT_END_HEADER
+
+
+#endif /* __CF2FONT_H__ */
+
+
+/* END */
diff --git a/src/cff/cf2ft.c b/src/cff/cf2ft.c
new file mode 100644
index 0000000..c09a024
--- /dev/null
+++ b/src/cff/cf2ft.c
@@ -0,0 +1,639 @@
+/***************************************************************************/
+/* */
+/* cf2ft.c */
+/* */
+/* FreeType Glue Component to Adobe's Interpreter (body). */
+/* */
+/* Copyright 2013 Adobe Systems Incorporated. */
+/* */
+/* This software, and all works of authorship, whether in source or */
+/* object code form as indicated by the copyright notice(s) included */
+/* herein (collectively, the "Work") is made available, and may only be */
+/* used, modified, and distributed under the FreeType Project License, */
+/* LICENSE.TXT. Additionally, subject to the terms and conditions of the */
+/* FreeType Project License, each contributor to the Work hereby grants */
+/* to any individual or legal entity exercising permissions granted by */
+/* the FreeType Project License and this section (hereafter, "You" or */
+/* "Your") a perpetual, worldwide, non-exclusive, no-charge, */
+/* royalty-free, irrevocable (except as stated in this section) patent */
+/* license to make, have made, use, offer to sell, sell, import, and */
+/* otherwise transfer the Work, where such license applies only to those */
+/* patent claims licensable by such contributor that are necessarily */
+/* infringed by their contribution(s) alone or by combination of their */
+/* contribution(s) with the Work to which such contribution(s) was */
+/* submitted. If You institute patent litigation against any entity */
+/* (including a cross-claim or counterclaim in a lawsuit) alleging that */
+/* the Work or a contribution incorporated within the Work constitutes */
+/* direct or contributory patent infringement, then any patent licenses */
+/* granted to You under this License for that Work shall terminate as of */
+/* the date such litigation is filed. */
+/* */
+/* By using, modifying, or distributing the Work you indicate that you */
+/* have read and understood the terms and conditions of the */
+/* FreeType Project License as well as those provided in this section, */
+/* and you accept them fully. */
+/* */
+/***************************************************************************/
+
+
+#include "cf2ft.h"
+#include FT_INTERNAL_DEBUG_H
+
+#include "cf2font.h"
+#include "cf2error.h"
+
+
+#define CF2_MAX_SIZE cf2_intToFixed( 2000 ) /* max ppem */
+
+
+ /*
+ * This check should avoid most internal overflow cases. Clients should
+ * generally respond to `Glyph_Too_Big' by getting a glyph outline
+ * at EM size, scaling it and filling it as a graphics operation.
+ *
+ */
+ static FT_Error
+ cf2_checkTransform( const CF2_Matrix* transform,
+ CF2_Int unitsPerEm )
+ {
+ CF2_Fixed maxScale;
+
+
+ FT_ASSERT( unitsPerEm > 0 );
+
+ FT_ASSERT( transform->a > 0 && transform->d > 0 );
+ FT_ASSERT( transform->b == 0 && transform->c == 0 );
+ FT_ASSERT( transform->tx == 0 && transform->ty == 0 );
+
+ if ( unitsPerEm > 0x7FFF )
+ return FT_THROW( Glyph_Too_Big );
+
+ maxScale = FT_DivFix( CF2_MAX_SIZE, cf2_intToFixed( unitsPerEm ) );
+
+ if ( transform->a > maxScale || transform->d > maxScale )
+ return FT_THROW( Glyph_Too_Big );
+
+ return FT_Err_Ok;
+ }
+
+
+ static void
+ cf2_setGlyphWidth( CF2_Outline outline,
+ CF2_Fixed width )
+ {
+ CFF_Decoder* decoder = outline->decoder;
+
+
+ FT_ASSERT( decoder );
+
+ decoder->glyph_width = cf2_fixedToInt( width );
+ }
+
+
+ /* Clean up font instance. */
+ static void
+ cf2_free_instance( void* ptr )
+ {
+ CF2_Font font = (CF2_Font)ptr;
+
+
+ if ( font )
+ {
+ FT_Memory memory = font->memory;
+
+
+ (void)memory;
+ }
+ }
+
+
+ /********************************************/
+ /* */
+ /* functions for handling client outline; */
+ /* FreeType uses coordinates in 26.6 format */
+ /* */
+ /********************************************/
+
+ static void
+ cf2_builder_moveTo( CF2_OutlineCallbacks callbacks,
+ const CF2_CallbackParams params )
+ {
+ /* downcast the object pointer */
+ CF2_Outline outline = (CF2_Outline)callbacks;
+ CFF_Builder* builder;
+
+ (void)params; /* only used in debug mode */
+
+
+ FT_ASSERT( outline && outline->decoder );
+ FT_ASSERT( params->op == CF2_PathOpMoveTo );
+
+ builder = &outline->decoder->builder;
+
+ /* note: two successive moves simply close the contour twice */
+ cff_builder_close_contour( builder );
+ builder->path_begun = 0;
+ }
+
+
+ static void
+ cf2_builder_lineTo( CF2_OutlineCallbacks callbacks,
+ const CF2_CallbackParams params )
+ {
+ /* downcast the object pointer */
+ CF2_Outline outline = (CF2_Outline)callbacks;
+ CFF_Builder* builder;
+
+
+ FT_ASSERT( outline && outline->decoder );
+ FT_ASSERT( params->op == CF2_PathOpLineTo );
+
+ builder = &outline->decoder->builder;
+
+ if ( !builder->path_begun )
+ {
+ /* record the move before the line; also check points and set */
+ /* `path_begun' */
+ cff_builder_start_point( builder,
+ params->pt0.x,
+ params->pt0.y );
+ }
+
+ /* `cff_builder_add_point1' includes a check_points call for one point */
+ cff_builder_add_point1( builder,
+ params->pt1.x,
+ params->pt1.y );
+ }
+
+
+ static void
+ cf2_builder_cubeTo( CF2_OutlineCallbacks callbacks,
+ const CF2_CallbackParams params )
+ {
+ /* downcast the object pointer */
+ CF2_Outline outline = (CF2_Outline)callbacks;
+ CFF_Builder* builder;
+
+
+ FT_ASSERT( outline && outline->decoder );
+ FT_ASSERT( params->op == CF2_PathOpCubeTo );
+
+ builder = &outline->decoder->builder;
+
+ if ( !builder->path_begun )
+ {
+ /* record the move before the line; also check points and set */
+ /* `path_begun' */
+ cff_builder_start_point( builder,
+ params->pt0.x,
+ params->pt0.y );
+ }
+
+ /* prepare room for 3 points: 2 off-curve, 1 on-curve */
+ cff_check_points( builder, 3 );
+
+ cff_builder_add_point( builder,
+ params->pt1.x,
+ params->pt1.y, 0 );
+ cff_builder_add_point( builder,
+ params->pt2.x,
+ params->pt2.y, 0 );
+ cff_builder_add_point( builder,
+ params->pt3.x,
+ params->pt3.y, 1 );
+ }
+
+
+ static void
+ cf2_outline_init( CF2_Outline outline,
+ FT_Memory memory,
+ FT_Error* error )
+ {
+ FT_MEM_ZERO( outline, sizeof ( CF2_OutlineRec ) );
+
+ outline->root.memory = memory;
+ outline->root.error = error;
+
+ outline->root.moveTo = cf2_builder_moveTo;
+ outline->root.lineTo = cf2_builder_lineTo;
+ outline->root.cubeTo = cf2_builder_cubeTo;
+ }
+
+
+ /* get scaling and hint flag from GlyphSlot */
+ static void
+ cf2_getScaleAndHintFlag( CFF_Decoder* decoder,
+ CF2_Fixed* x_scale,
+ CF2_Fixed* y_scale,
+ FT_Bool* hinted,
+ FT_Bool* scaled )
+ {
+ FT_ASSERT( decoder && decoder->builder.glyph );
+
+ /* note: FreeType scale includes a factor of 64 */
+ *hinted = decoder->builder.glyph->hint;
+ *scaled = decoder->builder.glyph->scaled;
+
+ if ( *hinted )
+ {
+ *x_scale = FT_DivFix( decoder->builder.glyph->x_scale,
+ cf2_intToFixed( 64 ) );
+ *y_scale = FT_DivFix( decoder->builder.glyph->y_scale,
+ cf2_intToFixed( 64 ) );
+ }
+ else
+ {
+ /* for unhinted outlines, `cff_slot_load' does the scaling, */
+ /* thus render at `unity' scale */
+
+ *x_scale = 0x0400; /* 1/64 as 16.16 */
+ *y_scale = 0x0400;
+ }
+ }
+
+
+ /* get units per em from `FT_Face' */
+ /* TODO: should handle font matrix concatenation? */
+ static FT_UShort
+ cf2_getUnitsPerEm( CFF_Decoder* decoder )
+ {
+ FT_ASSERT( decoder && decoder->builder.face );
+ FT_ASSERT( decoder->builder.face->root.units_per_EM );
+
+ return decoder->builder.face->root.units_per_EM;
+ }
+
+
+ /* Main entry point: Render one glyph. */
+ FT_LOCAL_DEF( FT_Error )
+ cf2_decoder_parse_charstrings( CFF_Decoder* decoder,
+ FT_Byte* charstring_base,
+ FT_ULong charstring_len )
+ {
+ FT_Memory memory;
+ FT_Error error = FT_Err_Ok;
+ CF2_Font font;
+
+
+ FT_ASSERT( decoder && decoder->cff );
+
+ memory = decoder->builder.memory;
+
+ /* CF2 data is saved here across glyphs */
+ font = (CF2_Font)decoder->cff->cf2_instance.data;
+
+ /* on first glyph, allocate instance structure */
+ if ( decoder->cff->cf2_instance.data == NULL )
+ {
+ decoder->cff->cf2_instance.finalizer =
+ (FT_Generic_Finalizer)cf2_free_instance;
+
+ if ( FT_ALLOC( decoder->cff->cf2_instance.data,
+ sizeof ( CF2_FontRec ) ) )
+ return FT_THROW( Out_Of_Memory );
+
+ font = (CF2_Font)decoder->cff->cf2_instance.data;
+
+ font->memory = memory;
+
+ /* initialize a client outline, to be shared by each glyph rendered */
+ cf2_outline_init( &font->outline, font->memory, &font->error );
+ }
+
+ /* save decoder; it is a stack variable and will be different on each */
+ /* call */
+ font->decoder = decoder;
+ font->outline.decoder = decoder;
+
+ {
+ /* build parameters for Adobe engine */
+
+ CFF_Builder* builder = &decoder->builder;
+ CFF_Driver driver = (CFF_Driver)FT_FACE_DRIVER( builder->face );
+
+ /* local error */
+ FT_Error error2 = FT_Err_Ok;
+ CF2_BufferRec buf;
+ CF2_Matrix transform;
+ CF2_F16Dot16 glyphWidth;
+
+ FT_Bool hinted;
+ FT_Bool scaled;
+
+
+ /* FreeType has already looked up the GID; convert to */
+ /* `RegionBuffer', assuming that the input has been validated */
+ FT_ASSERT( charstring_base + charstring_len >= charstring_base );
+
+ FT_ZERO( &buf );
+ buf.start =
+ buf.ptr = charstring_base;
+ buf.end = charstring_base + charstring_len;
+
+ FT_ZERO( &transform );
+
+ cf2_getScaleAndHintFlag( decoder,
+ &transform.a,
+ &transform.d,
+ &hinted,
+ &scaled );
+
+ font->renderingFlags = 0;
+ if ( hinted )
+ font->renderingFlags |= CF2_FlagsHinted;
+ if ( scaled && !driver->no_stem_darkening )
+ font->renderingFlags |= CF2_FlagsDarkened;
+
+ /* now get an outline for this glyph; */
+ /* also get units per em to validate scale */
+ font->unitsPerEm = (CF2_Int)cf2_getUnitsPerEm( decoder );
+
+ error2 = cf2_checkTransform( &transform, font->unitsPerEm );
+ if ( error2 )
+ return error2;
+
+ error2 = cf2_getGlyphOutline( font, &buf, &transform, &glyphWidth );
+ if ( error2 )
+ return FT_ERR( Invalid_File_Format );
+
+ cf2_setGlyphWidth( &font->outline, glyphWidth );
+
+ return FT_Err_Ok;
+ }
+ }
+
+
+ /* get pointer to current FreeType subfont (based on current glyphID) */
+ FT_LOCAL_DEF( CFF_SubFont )
+ cf2_getSubfont( CFF_Decoder* decoder )
+ {
+ FT_ASSERT( decoder && decoder->current_subfont );
+
+ return decoder->current_subfont;
+ }
+
+
+ /* get `y_ppem' from `CFF_Size' */
+ FT_LOCAL_DEF( CF2_Fixed )
+ cf2_getPpemY( CFF_Decoder* decoder )
+ {
+ FT_ASSERT( decoder &&
+ decoder->builder.face &&
+ decoder->builder.face->root.size );
+ FT_ASSERT( decoder->builder.face->root.size->metrics.y_ppem );
+
+ return cf2_intToFixed(
+ decoder->builder.face->root.size->metrics.y_ppem );
+ }
+
+
+ /* get standard stem widths for the current subfont; */
+ /* FreeType stores these as integer font units */
+ /* (note: variable names seem swapped) */
+ FT_LOCAL_DEF( CF2_Fixed )
+ cf2_getStdVW( CFF_Decoder* decoder )
+ {
+ FT_ASSERT( decoder && decoder->current_subfont );
+
+ return cf2_intToFixed(
+ decoder->current_subfont->private_dict.standard_height );
+ }
+
+
+ FT_LOCAL_DEF( CF2_Fixed )
+ cf2_getStdHW( CFF_Decoder* decoder )
+ {
+ FT_ASSERT( decoder && decoder->current_subfont );
+
+ return cf2_intToFixed(
+ decoder->current_subfont->private_dict.standard_width );
+ }
+
+
+ /* note: FreeType stores 1000 times the actual value for `BlueScale' */
+ FT_LOCAL_DEF( void )
+ cf2_getBlueMetrics( CFF_Decoder* decoder,
+ CF2_Fixed* blueScale,
+ CF2_Fixed* blueShift,
+ CF2_Fixed* blueFuzz )
+ {
+ FT_ASSERT( decoder && decoder->current_subfont );
+
+ *blueScale = FT_DivFix(
+ decoder->current_subfont->private_dict.blue_scale,
+ cf2_intToFixed( 1000 ) );
+ *blueShift = cf2_intToFixed(
+ decoder->current_subfont->private_dict.blue_shift );
+ *blueFuzz = cf2_intToFixed(
+ decoder->current_subfont->private_dict.blue_fuzz );
+ }
+
+
+ /* get blue values counts and arrays; the FreeType parser has validated */
+ /* the counts and verified that each is an even number */
+ FT_LOCAL_DEF( void )
+ cf2_getBlueValues( CFF_Decoder* decoder,
+ size_t* count,
+ FT_Pos* *data )
+ {
+ FT_ASSERT( decoder && decoder->current_subfont );
+
+ *count = decoder->current_subfont->private_dict.num_blue_values;
+ *data = (FT_Pos*)
+ &decoder->current_subfont->private_dict.blue_values;
+ }
+
+
+ FT_LOCAL_DEF( void )
+ cf2_getOtherBlues( CFF_Decoder* decoder,
+ size_t* count,
+ FT_Pos* *data )
+ {
+ FT_ASSERT( decoder && decoder->current_subfont );
+
+ *count = decoder->current_subfont->private_dict.num_other_blues;
+ *data = (FT_Pos*)
+ &decoder->current_subfont->private_dict.other_blues;
+ }
+
+
+ FT_LOCAL_DEF( void )
+ cf2_getFamilyBlues( CFF_Decoder* decoder,
+ size_t* count,
+ FT_Pos* *data )
+ {
+ FT_ASSERT( decoder && decoder->current_subfont );
+
+ *count = decoder->current_subfont->private_dict.num_family_blues;
+ *data = (FT_Pos*)
+ &decoder->current_subfont->private_dict.family_blues;
+ }
+
+
+ FT_LOCAL_DEF( void )
+ cf2_getFamilyOtherBlues( CFF_Decoder* decoder,
+ size_t* count,
+ FT_Pos* *data )
+ {
+ FT_ASSERT( decoder && decoder->current_subfont );
+
+ *count = decoder->current_subfont->private_dict.num_family_other_blues;
+ *data = (FT_Pos*)
+ &decoder->current_subfont->private_dict.family_other_blues;
+ }
+
+
+ FT_LOCAL_DEF( CF2_Int )
+ cf2_getLanguageGroup( CFF_Decoder* decoder )
+ {
+ FT_ASSERT( decoder && decoder->current_subfont );
+
+ return decoder->current_subfont->private_dict.language_group;
+ }
+
+
+ /* convert unbiased subroutine index to `CF2_Buffer' and */
+ /* return 0 on success */
+ FT_LOCAL_DEF( CF2_Int )
+ cf2_initGlobalRegionBuffer( CFF_Decoder* decoder,
+ CF2_UInt idx,
+ CF2_Buffer buf )
+ {
+ FT_ASSERT( decoder && decoder->globals );
+
+ FT_ZERO( buf );
+
+ idx += decoder->globals_bias;
+ if ( idx >= decoder->num_globals )
+ return TRUE; /* error */
+
+ buf->start =
+ buf->ptr = decoder->globals[idx];
+ buf->end = decoder->globals[idx + 1];
+
+ return FALSE; /* success */
+ }
+
+
+ /* convert AdobeStandardEncoding code to CF2_Buffer; */
+ /* used for seac component */
+ FT_LOCAL_DEF( FT_Error )
+ cf2_getSeacComponent( CFF_Decoder* decoder,
+ CF2_UInt code,
+ CF2_Buffer buf )
+ {
+ CF2_Int gid;
+ FT_Byte* charstring;
+ FT_ULong len;
+ FT_Error error;
+
+
+ FT_ASSERT( decoder );
+
+ FT_ZERO( buf );
+
+ gid = cff_lookup_glyph_by_stdcharcode( decoder->cff, code );
+ if ( gid < 0 )
+ return FT_THROW( Invalid_Glyph_Format );
+
+ error = cff_get_glyph_data( decoder->builder.face,
+ gid,
+ &charstring,
+ &len );
+ /* TODO: for now, just pass the FreeType error through */
+ if ( error )
+ return error;
+
+ /* assume input has been validated */
+ FT_ASSERT( charstring + len >= charstring );
+
+ buf->start = charstring;
+ buf->end = charstring + len;
+ buf->ptr = buf->start;
+
+ return FT_Err_Ok;
+ }
+
+
+ FT_LOCAL_DEF( void )
+ cf2_freeSeacComponent( CFF_Decoder* decoder,
+ CF2_Buffer buf )
+ {
+ FT_ASSERT( decoder );
+
+ cff_free_glyph_data( decoder->builder.face,
+ (FT_Byte**)&buf->start,
+ (FT_ULong)( buf->end - buf->start ) );
+ }
+
+
+ FT_LOCAL_DEF( CF2_Int )
+ cf2_initLocalRegionBuffer( CFF_Decoder* decoder,
+ CF2_UInt idx,
+ CF2_Buffer buf )
+ {
+ FT_ASSERT( decoder && decoder->locals );
+
+ FT_ZERO( buf );
+
+ idx += decoder->locals_bias;
+ if ( idx >= decoder->num_locals )
+ return TRUE; /* error */
+
+ buf->start =
+ buf->ptr = decoder->locals[idx];
+ buf->end = decoder->locals[idx + 1];
+
+ return FALSE; /* success */
+ }
+
+
+ FT_LOCAL_DEF( CF2_Fixed )
+ cf2_getDefaultWidthX( CFF_Decoder* decoder )
+ {
+ FT_ASSERT( decoder && decoder->current_subfont );
+
+ return cf2_intToFixed(
+ decoder->current_subfont->private_dict.default_width );
+ }
+
+
+ FT_LOCAL_DEF( CF2_Fixed )
+ cf2_getNominalWidthX( CFF_Decoder* decoder )
+ {
+ FT_ASSERT( decoder && decoder->current_subfont );
+
+ return cf2_intToFixed(
+ decoder->current_subfont->private_dict.nominal_width );
+ }
+
+
+ FT_LOCAL_DEF( void )
+ cf2_outline_reset( CF2_Outline outline )
+ {
+ CFF_Decoder* decoder = outline->decoder;
+
+
+ FT_ASSERT( decoder );
+
+ outline->root.windingMomentum = 0;
+
+ FT_GlyphLoader_Rewind( decoder->builder.loader );
+ }
+
+
+ FT_LOCAL_DEF( void )
+ cf2_outline_close( CF2_Outline outline )
+ {
+ CFF_Decoder* decoder = outline->decoder;
+
+
+ FT_ASSERT( decoder );
+
+ cff_builder_close_contour( &decoder->builder );
+
+ FT_GlyphLoader_Add( decoder->builder.loader );
+ }
+
+
+/* END */
diff --git a/src/cff/cf2ft.h b/src/cff/cf2ft.h
new file mode 100644
index 0000000..731da3c
--- /dev/null
+++ b/src/cff/cf2ft.h
@@ -0,0 +1,147 @@
+/***************************************************************************/
+/* */
+/* cf2ft.h */
+/* */
+/* FreeType Glue Component to Adobe's Interpreter (specification). */
+/* */
+/* Copyright 2013 Adobe Systems Incorporated. */
+/* */
+/* This software, and all works of authorship, whether in source or */
+/* object code form as indicated by the copyright notice(s) included */
+/* herein (collectively, the "Work") is made available, and may only be */
+/* used, modified, and distributed under the FreeType Project License, */
+/* LICENSE.TXT. Additionally, subject to the terms and conditions of the */
+/* FreeType Project License, each contributor to the Work hereby grants */
+/* to any individual or legal entity exercising permissions granted by */
+/* the FreeType Project License and this section (hereafter, "You" or */
+/* "Your") a perpetual, worldwide, non-exclusive, no-charge, */
+/* royalty-free, irrevocable (except as stated in this section) patent */
+/* license to make, have made, use, offer to sell, sell, import, and */
+/* otherwise transfer the Work, where such license applies only to those */
+/* patent claims licensable by such contributor that are necessarily */
+/* infringed by their contribution(s) alone or by combination of their */
+/* contribution(s) with the Work to which such contribution(s) was */
+/* submitted. If You institute patent litigation against any entity */
+/* (including a cross-claim or counterclaim in a lawsuit) alleging that */
+/* the Work or a contribution incorporated within the Work constitutes */
+/* direct or contributory patent infringement, then any patent licenses */
+/* granted to You under this License for that Work shall terminate as of */
+/* the date such litigation is filed. */
+/* */
+/* By using, modifying, or distributing the Work you indicate that you */
+/* have read and understood the terms and conditions of the */
+/* FreeType Project License as well as those provided in this section, */
+/* and you accept them fully. */
+/* */
+/***************************************************************************/
+
+
+#ifndef __CF2FT_H__
+#define __CF2FT_H__
+
+
+#include "cf2types.h"
+
+
+ /* TODO: disable asserts for now */
+#define CF2_NDEBUG
+
+
+#include FT_SYSTEM_H
+
+#include "cf2glue.h"
+#include "cffgload.h" /* for CFF_Decoder */
+
+
+FT_BEGIN_HEADER
+
+
+ FT_LOCAL( FT_Error )
+ cf2_decoder_parse_charstrings( CFF_Decoder* decoder,
+ FT_Byte* charstring_base,
+ FT_ULong charstring_len );
+
+ FT_LOCAL( CFF_SubFont )
+ cf2_getSubfont( CFF_Decoder* decoder );
+
+
+ FT_LOCAL( CF2_Fixed )
+ cf2_getPpemY( CFF_Decoder* decoder );
+ FT_LOCAL( CF2_Fixed )
+ cf2_getStdVW( CFF_Decoder* decoder );
+ FT_LOCAL( CF2_Fixed )
+ cf2_getStdHW( CFF_Decoder* decoder );
+
+ FT_LOCAL( void )
+ cf2_getBlueMetrics( CFF_Decoder* decoder,
+ CF2_Fixed* blueScale,
+ CF2_Fixed* blueShift,
+ CF2_Fixed* blueFuzz );
+ FT_LOCAL( void )
+ cf2_getBlueValues( CFF_Decoder* decoder,
+ size_t* count,
+ FT_Pos* *data );
+ FT_LOCAL( void )
+ cf2_getOtherBlues( CFF_Decoder* decoder,
+ size_t* count,
+ FT_Pos* *data );
+ FT_LOCAL( void )
+ cf2_getFamilyBlues( CFF_Decoder* decoder,
+ size_t* count,
+ FT_Pos* *data );
+ FT_LOCAL( void )
+ cf2_getFamilyOtherBlues( CFF_Decoder* decoder,
+ size_t* count,
+ FT_Pos* *data );
+
+ FT_LOCAL( CF2_Int )
+ cf2_getLanguageGroup( CFF_Decoder* decoder );
+
+ FT_LOCAL( CF2_Int )
+ cf2_initGlobalRegionBuffer( CFF_Decoder* decoder,
+ CF2_UInt idx,
+ CF2_Buffer buf );
+ FT_LOCAL( FT_Error )
+ cf2_getSeacComponent( CFF_Decoder* decoder,
+ CF2_UInt code,
+ CF2_Buffer buf );
+ FT_LOCAL( void )
+ cf2_freeSeacComponent( CFF_Decoder* decoder,
+ CF2_Buffer buf );
+ FT_LOCAL( CF2_Int )
+ cf2_initLocalRegionBuffer( CFF_Decoder* decoder,
+ CF2_UInt idx,
+ CF2_Buffer buf );
+
+ FT_LOCAL( CF2_Fixed )
+ cf2_getDefaultWidthX( CFF_Decoder* decoder );
+ FT_LOCAL( CF2_Fixed )
+ cf2_getNominalWidthX( CFF_Decoder* decoder );
+
+
+ /*
+ * FreeType client outline
+ *
+ * process output from the charstring interpreter
+ */
+ typedef struct CF2_OutlineRec_
+ {
+ CF2_OutlineCallbacksRec root; /* base class must be first */
+ CFF_Decoder* decoder;
+
+ } CF2_OutlineRec, *CF2_Outline;
+
+
+ FT_LOCAL( void )
+ cf2_outline_reset( CF2_Outline outline );
+ FT_LOCAL( void )
+ cf2_outline_close( CF2_Outline outline );
+
+
+FT_END_HEADER
+
+
+#endif /* __CF2FT_H__ */
+
+
+/* END */
diff --git a/src/cff/cf2glue.h b/src/cff/cf2glue.h
new file mode 100644
index 0000000..a24da39
--- /dev/null
+++ b/src/cff/cf2glue.h
@@ -0,0 +1,144 @@
+/***************************************************************************/
+/* */
+/* cf2glue.h */
+/* */
+/* Adobe's code for shared stuff (specification only). */
+/* */
+/* Copyright 2007-2013 Adobe Systems Incorporated. */
+/* */
+/* This software, and all works of authorship, whether in source or */
+/* object code form as indicated by the copyright notice(s) included */
+/* herein (collectively, the "Work") is made available, and may only be */
+/* used, modified, and distributed under the FreeType Project License, */
+/* LICENSE.TXT. Additionally, subject to the terms and conditions of the */
+/* FreeType Project License, each contributor to the Work hereby grants */
+/* to any individual or legal entity exercising permissions granted by */
+/* the FreeType Project License and this section (hereafter, "You" or */
+/* "Your") a perpetual, worldwide, non-exclusive, no-charge, */
+/* royalty-free, irrevocable (except as stated in this section) patent */
+/* license to make, have made, use, offer to sell, sell, import, and */
+/* otherwise transfer the Work, where such license applies only to those */
+/* patent claims licensable by such contributor that are necessarily */
+/* infringed by their contribution(s) alone or by combination of their */
+/* contribution(s) with the Work to which such contribution(s) was */
+/* submitted. If You institute patent litigation against any entity */
+/* (including a cross-claim or counterclaim in a lawsuit) alleging that */
+/* the Work or a contribution incorporated within the Work constitutes */
+/* direct or contributory patent infringement, then any patent licenses */
+/* granted to You under this License for that Work shall terminate as of */
+/* the date such litigation is filed. */
+/* */
+/* By using, modifying, or distributing the Work you indicate that you */
+/* have read and understood the terms and conditions of the */
+/* FreeType Project License as well as those provided in this section, */
+/* and you accept them fully. */
+/* */
+/***************************************************************************/
+
+
+#ifndef __CF2GLUE_H__
+#define __CF2GLUE_H__
+
+
+/* common includes for other modules */
+#include "cf2error.h"
+#include "cf2fixed.h"
+#include "cf2arrst.h"
+#include "cf2read.h"
+
+
+FT_BEGIN_HEADER
+
+
+ /* rendering parameters */
+
+ /* apply hints to rendered glyphs */
+#define CF2_FlagsHinted 1
+ /* for testing */
+#define CF2_FlagsDarkened 2
+
+ /* type for holding the flags */
+ typedef CF2_Int CF2_RenderingFlags;
+
+
+ /* elements of a glyph outline */
+ typedef enum CF2_PathOp_
+ {
+ CF2_PathOpMoveTo = 1, /* change the current point */
+ CF2_PathOpLineTo = 2, /* line */
+ CF2_PathOpQuadTo = 3, /* quadratic curve */
+ CF2_PathOpCubeTo = 4 /* cubic curve */
+
+ } CF2_PathOp;
+
+
+ /* a matrix of fixed point values */
+ typedef struct CF2_Matrix_
+ {
+ CF2_F16Dot16 a;
+ CF2_F16Dot16 b;
+ CF2_F16Dot16 c;
+ CF2_F16Dot16 d;
+ CF2_F16Dot16 tx;
+ CF2_F16Dot16 ty;
+
+ } CF2_Matrix;
+
+
+ /* these typedefs are needed by more than one header file */
+ /* and gcc compiler doesn't allow redefinition */
+ typedef struct CF2_FontRec_ CF2_FontRec, *CF2_Font;
+ typedef struct CF2_HintRec_ CF2_HintRec, *CF2_Hint;
+
+
+ /* A common structure for all callback parameters. */
+ /* */
+ /* Some members may be unused. For example, `pt0' is not used for */
+ /* `moveTo' and `pt3' is not used for `quadTo'. The initial point `pt0' */
+ /* is included for each path element for generality; curve conversions */
+ /* need it. The `op' parameter allows one function to handle multiple */
+ /* element types. */
+
+ typedef struct CF2_CallbackParamsRec_
+ {
+ FT_Vector pt0;
+ FT_Vector pt1;
+ FT_Vector pt2;
+ FT_Vector pt3;
+
+ CF2_Int op;
+
+ } CF2_CallbackParamsRec, *CF2_CallbackParams;
+
+
+ /* forward reference */
+ typedef struct CF2_OutlineCallbacksRec_ CF2_OutlineCallbacksRec,
+ *CF2_OutlineCallbacks;
+
+ /* callback function pointers */
+ typedef void
+ (*CF2_Callback_Type)( CF2_OutlineCallbacks callbacks,
+ const CF2_CallbackParams params );
+
+
+ struct CF2_OutlineCallbacksRec_
+ {
+ CF2_Callback_Type moveTo;
+ CF2_Callback_Type lineTo;
+ CF2_Callback_Type quadTo;
+ CF2_Callback_Type cubeTo;
+
+ CF2_Int windingMomentum; /* for winding order detection */
+
+ FT_Memory memory;
+ FT_Error* error;
+ };
+
+
+FT_END_HEADER
+
+
+#endif /* __CF2GLUE_H__ */
+
+
+/* END */
diff --git a/src/cff/cf2hints.c b/src/cff/cf2hints.c
new file mode 100644
index 0000000..1666e4f
--- /dev/null
+++ b/src/cff/cf2hints.c
@@ -0,0 +1,1733 @@
+/***************************************************************************/
+/* */
+/* cf2hints.c */
+/* */
+/* Adobe's code for handling CFF hints (body). */
+/* */
+/* Copyright 2007-2013 Adobe Systems Incorporated. */
+/* */
+/* This software, and all works of authorship, whether in source or */
+/* object code form as indicated by the copyright notice(s) included */
+/* herein (collectively, the "Work") is made available, and may only be */
+/* used, modified, and distributed under the FreeType Project License, */
+/* LICENSE.TXT. Additionally, subject to the terms and conditions of the */
+/* FreeType Project License, each contributor to the Work hereby grants */
+/* to any individual or legal entity exercising permissions granted by */
+/* the FreeType Project License and this section (hereafter, "You" or */
+/* "Your") a perpetual, worldwide, non-exclusive, no-charge, */
+/* royalty-free, irrevocable (except as stated in this section) patent */
+/* license to make, have made, use, offer to sell, sell, import, and */
+/* otherwise transfer the Work, where such license applies only to those */
+/* patent claims licensable by such contributor that are necessarily */
+/* infringed by their contribution(s) alone or by combination of their */
+/* contribution(s) with the Work to which such contribution(s) was */
+/* submitted. If You institute patent litigation against any entity */
+/* (including a cross-claim or counterclaim in a lawsuit) alleging that */
+/* the Work or a contribution incorporated within the Work constitutes */
+/* direct or contributory patent infringement, then any patent licenses */
+/* granted to You under this License for that Work shall terminate as of */
+/* the date such litigation is filed. */
+/* */
+/* By using, modifying, or distributing the Work you indicate that you */
+/* have read and understood the terms and conditions of the */
+/* FreeType Project License as well as those provided in this section, */
+/* and you accept them fully. */
+/* */
+/***************************************************************************/
+
+
+#include "cf2ft.h"
+#include FT_INTERNAL_DEBUG_H
+
+#include "cf2glue.h"
+#include "cf2font.h"
+#include "cf2hints.h"
+#include "cf2intrp.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_cf2hints
+
+
+ typedef struct CF2_HintMoveRec_
+ {
+ size_t j; /* index of upper hint map edge */
+ CF2_Fixed moveUp; /* adjustment to optimum position */
+
+ } CF2_HintMoveRec, *CF2_HintMove;
+
+
+ /* Compute angular momentum for winding order detection. It is called */
+ /* for all lines and curves, but not necessarily in element order. */
+ static CF2_Int
+ cf2_getWindingMomentum( CF2_Fixed x1,
+ CF2_Fixed y1,
+ CF2_Fixed x2,
+ CF2_Fixed y2 )
+ {
+ /* cross product of pt1 position from origin with pt2 position from */
+ /* pt1; we reduce the precision so that the result fits into 32 bits */
+
+ return ( x1 >> 16 ) * ( ( y2 - y1 ) >> 16 ) -
+ ( y1 >> 16 ) * ( ( x2 - x1 ) >> 16 );
+ }
+
+
+ /*
+ * Construct from a StemHint; this is used as a parameter to
+ * `cf2_blues_capture'.
+ * `hintOrigin' is the character space displacement of a seac accent.
+ * Adjust stem hint for darkening here.
+ *
+ */
+ static void
+ cf2_hint_init( CF2_Hint hint,
+ const CF2_ArrStack stemHintArray,
+ size_t indexStemHint,
+ const CF2_Font font,
+ CF2_Fixed hintOrigin,
+ CF2_Fixed scale,
+ FT_Bool bottom )
+ {
+ CF2_Fixed width;
+ const CF2_StemHintRec* stemHint;
+
+
+ FT_ZERO( hint );
+
+ stemHint = (const CF2_StemHintRec*)cf2_arrstack_getPointer(
+ stemHintArray,
+ indexStemHint );
+
+ width = stemHint->max - stemHint->min;
+
+ if ( width == cf2_intToFixed( -21 ) )
+ {
+ /* ghost bottom */
+
+ if ( bottom )
+ {
+ hint->csCoord = stemHint->max;
+ hint->flags = CF2_GhostBottom;
+ }
+ else
+ hint->flags = 0;
+ }
+
+ else if ( width == cf2_intToFixed( -20 ) )
+ {
+ /* ghost top */
+
+ if ( bottom )
+ hint->flags = 0;
+ else
+ {
+ hint->csCoord = stemHint->min;
+ hint->flags = CF2_GhostTop;
+ }
+ }
+
+ else if ( width < 0 )
+ {
+ /* inverted pair */
+
+ /*
+ * Hints with negative widths were produced by an early version of a
+ * non-Adobe font tool. The Type 2 spec allows edge (ghost) hints
+ * with negative widths, but says
+ *
+ * All other negative widths have undefined meaning.
+ *
+ * CoolType has a silent workaround that negates the hint width; for
+ * permissive mode, we do the same here.
+ *
+ * Note: Such fonts cannot use ghost hints, but should otherwise work.
+ * Note: Some poor hints in our faux fonts can produce negative
+ * widths at some blends. For example, see a light weight of
+ * `u' in ASerifMM.
+ *
+ */
+ if ( bottom )
+ {
+ hint->csCoord = stemHint->max;
+ hint->flags = CF2_PairBottom;
+ }
+ else
+ {
+ hint->csCoord = stemHint->min;
+ hint->flags = CF2_PairTop;
+ }
+ }
+
+ else
+ {
+ /* normal pair */
+
+ if ( bottom )
+ {
+ hint->csCoord = stemHint->min;
+ hint->flags = CF2_PairBottom;
+ }
+ else
+ {
+ hint->csCoord = stemHint->max;
+ hint->flags = CF2_PairTop;
+ }
+ }
+
+ /* Now that ghost hints have been detected, adjust this edge for */
+ /* darkening. Bottoms are not changed; tops are incremented by twice */
+ /* `darkenY'. */
+ if ( cf2_hint_isTop( hint ) )
+ hint->csCoord += 2 * font->darkenY;
+
+ hint->csCoord += hintOrigin;
+ hint->scale = scale;
+ hint->index = indexStemHint; /* index in original stem hint array */
+
+ /* if original stem hint has been used, use the same position */
+ if ( hint->flags != 0 && stemHint->used )
+ {
+ if ( cf2_hint_isTop( hint ) )
+ hint->dsCoord = stemHint->maxDS;
+ else
+ hint->dsCoord = stemHint->minDS;
+
+ cf2_hint_lock( hint );
+ }
+ else
+ hint->dsCoord = FT_MulFix( hint->csCoord, scale );
+ }
+
+
+ /* initialize an invalid hint map element */
+ static void
+ cf2_hint_initZero( CF2_Hint hint )
+ {
+ FT_ZERO( hint );
+ }
+
+
+ FT_LOCAL_DEF( FT_Bool )
+ cf2_hint_isValid( const CF2_Hint hint )
+ {
+ return hint->flags != 0;
+ }
+
+
+ static FT_Bool
+ cf2_hint_isPair( const CF2_Hint hint )
+ {
+ return ( hint->flags &
+ ( CF2_PairBottom | CF2_PairTop ) ) != 0;
+ }
+
+
+ static FT_Bool
+ cf2_hint_isPairTop( const CF2_Hint hint )
+ {
+ return ( hint->flags & CF2_PairTop ) != 0;
+ }
+
+
+ FT_LOCAL_DEF( FT_Bool )
+ cf2_hint_isTop( const CF2_Hint hint )
+ {
+ return ( hint->flags &
+ ( CF2_PairTop | CF2_GhostTop ) ) != 0;
+ }
+
+
+ FT_LOCAL_DEF( FT_Bool )
+ cf2_hint_isBottom( const CF2_Hint hint )
+ {
+ return ( hint->flags &
+ ( CF2_PairBottom | CF2_GhostBottom ) ) != 0;
+ }
+
+
+ static FT_Bool
+ cf2_hint_isLocked( const CF2_Hint hint )
+ {
+ return ( hint->flags & CF2_Locked ) != 0;
+ }
+
+
+ static FT_Bool
+ cf2_hint_isSynthetic( const CF2_Hint hint )
+ {
+ return ( hint->flags & CF2_Synthetic ) != 0;
+ }
+
+
+ FT_LOCAL_DEF( void )
+ cf2_hint_lock( CF2_Hint hint )
+ {
+ hint->flags |= CF2_Locked;
+ }
+
+
+ FT_LOCAL_DEF( void )
+ cf2_hintmap_init( CF2_HintMap hintmap,
+ CF2_Font font,
+ CF2_HintMap initialMap,
+ CF2_ArrStack hintMoves,
+ CF2_Fixed scale )
+ {
+ FT_ZERO( hintmap );
+
+ /* copy parameters from font instance */
+ hintmap->hinted = font->hinted;
+ hintmap->scale = scale;
+ hintmap->font = font;
+ hintmap->initialHintMap = initialMap;
+ /* will clear in `cf2_hintmap_adjustHints' */
+ hintmap->hintMoves = hintMoves;
+ }
+
+
+ static FT_Bool
+ cf2_hintmap_isValid( const CF2_HintMap hintmap )
+ {
+ return hintmap->isValid;
+ }
+
+
+ /* transform character space coordinate to device space using hint map */
+ static CF2_Fixed
+ cf2_hintmap_map( CF2_HintMap hintmap,
+ CF2_Fixed csCoord )
+ {
+ FT_ASSERT( hintmap->isValid ); /* must call Build before Map */
+ FT_ASSERT( hintmap->lastIndex < CF2_MAX_HINT_EDGES );
+
+ if ( hintmap->count == 0 || ! hintmap->hinted )
+ {
+ /* there are no hints; use uniform scale and zero offset */
+ return FT_MulFix( csCoord, hintmap->scale );
+ }
+ else
+ {
+ /* start linear search from last hit */
+ CF2_UInt i = hintmap->lastIndex;
+
+
+ /* search up */
+ while ( i < hintmap->count - 1 &&
+ csCoord >= hintmap->edge[i + 1].csCoord )
+ i += 1;
+
+ /* search down */
+ while ( i > 0 && csCoord < hintmap->edge[i].csCoord )
+ i -= 1;
+
+ hintmap->lastIndex = i;
+
+ if ( i == 0 && csCoord < hintmap->edge[0].csCoord )
+ {
+ /* special case for points below first edge: use uniform scale */
+ return FT_MulFix( csCoord - hintmap->edge[0].csCoord,
+ hintmap->scale ) +
+ hintmap->edge[0].dsCoord;
+ }
+ else
+ {
+ /*
+ * Note: entries with duplicate csCoord are allowed.
+ * Use edge[i], the highest entry where csCoord >= entry[i].csCoord
+ */
+ return FT_MulFix( csCoord - hintmap->edge[i].csCoord,
+ hintmap->edge[i].scale ) +
+ hintmap->edge[i].dsCoord;
+ }
+ }
+ }
+
+
+ /*
+ * This hinting policy moves a hint pair in device space so that one of
+ * its two edges is on a device pixel boundary (its fractional part is
+ * zero). `cf2_hintmap_insertHint' guarantees no overlap in CS
+ * space. Ensure here that there is no overlap in DS.
+ *
+ * In the first pass, edges are adjusted relative to adjacent hints.
+ * Those that are below have already been adjusted. Those that are
+ * above have not yet been adjusted. If a hint above blocks an
+ * adjustment to an optimal position, we will try again in a second
+ * pass. The second pass is top-down.
+ *
+ */
+
+ static void
+ cf2_hintmap_adjustHints( CF2_HintMap hintmap )
+ {
+ size_t i, j;
+
+
+ cf2_arrstack_clear( hintmap->hintMoves ); /* working storage */
+
+ /*
+ * First pass is bottom-up (font hint order) without look-ahead.
+ * Locked edges are already adjusted.
+ * Unlocked edges begin with dsCoord from `initialHintMap'.
+ * Save edges that are not optimally adjusted in `hintMoves' array,
+ * and process them in second pass.
+ */
+
+ for ( i = 0; i < hintmap->count; i++ )
+ {
+ FT_Bool isPair = cf2_hint_isPair( &hintmap->edge[i] );
+
+
+ /* index of upper edge (same value for ghost hint) */
+ j = isPair ? i + 1 : i;
+
+ FT_ASSERT( j < hintmap->count );
+ FT_ASSERT( cf2_hint_isValid( &hintmap->edge[i] ) );
+ FT_ASSERT( cf2_hint_isValid( &hintmap->edge[j] ) );
+ FT_ASSERT( cf2_hint_isLocked( &hintmap->edge[i] ) ==
+ cf2_hint_isLocked( &hintmap->edge[j] ) );
+
+ if ( !cf2_hint_isLocked( &hintmap->edge[i] ) )
+ {
+ /* hint edge is not locked, we can adjust it */
+ CF2_Fixed fracDown = cf2_fixedFraction( hintmap->edge[i].dsCoord );
+ CF2_Fixed fracUp = cf2_fixedFraction( hintmap->edge[j].dsCoord );
+
+ /* calculate all four possibilities; moves down are negative */
+ CF2_Fixed downMoveDown = 0 - fracDown;
+ CF2_Fixed upMoveDown = 0 - fracUp;
+ CF2_Fixed downMoveUp = fracDown == 0
+ ? 0
+ : cf2_intToFixed( 1 ) - fracDown;
+ CF2_Fixed upMoveUp = fracUp == 0
+ ? 0
+ : cf2_intToFixed( 1 ) - fracUp;
+
+ /* smallest move up */
+ CF2_Fixed moveUp = FT_MIN( downMoveUp, upMoveUp );
+ /* smallest move down */
+ CF2_Fixed moveDown = FT_MAX( downMoveDown, upMoveDown );
+
+ /* final amount to move edge or edge pair */
+ CF2_Fixed move;
+
+ CF2_Fixed downMinCounter = CF2_MIN_COUNTER;
+ CF2_Fixed upMinCounter = CF2_MIN_COUNTER;
+ FT_Bool saveEdge = FALSE;
+
+
+ /* minimum counter constraint doesn't apply when adjacent edges */
+ /* are synthetic */
+ /* TODO: doesn't seem a big effect; for now, reduce the code */
+#if 0
+ if ( i == 0 ||
+ cf2_hint_isSynthetic( &hintmap->edge[i - 1] ) )
+ downMinCounter = 0;
+
+ if ( j >= hintmap->count - 1 ||
+ cf2_hint_isSynthetic( &hintmap->edge[j + 1] ) )
+ upMinCounter = 0;
+#endif
+
+ /* is there room to move up? */
+ /* there is if we are at top of array or the next edge is at or */
+ /* beyond proposed move up? */
+ if ( j >= hintmap->count - 1 ||
+ hintmap->edge[j + 1].dsCoord >=
+ hintmap->edge[j].dsCoord + moveUp + upMinCounter )
+ {
+ /* there is room to move up; is there also room to move down? */
+ if ( i == 0 ||
+ hintmap->edge[i - 1].dsCoord <=
+ hintmap->edge[i].dsCoord + moveDown - downMinCounter )
+ {
+ /* move smaller absolute amount */
+ move = ( -moveDown < moveUp ) ? moveDown : moveUp; /* optimum */
+ }
+ else
+ move = moveUp;
+ }
+ else
+ {
+ /* is there room to move down? */
+ if ( i == 0 ||
+ hintmap->edge[i - 1].dsCoord <=
+ hintmap->edge[i].dsCoord + moveDown - downMinCounter )
+ {
+ move = moveDown;
+ saveEdge = moveUp < -moveDown; /* true if non-optimum move */
+ }
+ else
+ {
+ /* no room to move either way without overlapping or reducing */
+ /* the counter too much */
+ move = 0;
+ saveEdge = TRUE;
+ }
+ }
+
+ /* Identify non-moves and moves down that aren't optimal, and save */
+ /* them for second pass. */
+ /* Do this only if there is an unlocked edge above (which could */
+ /* possibly move). */
+ if ( saveEdge &&
+ j < hintmap->count - 1 &&
+ !cf2_hint_isLocked( &hintmap->edge[j + 1] ) )
+ {
+ CF2_HintMoveRec savedMove;
+
+
+ savedMove.j = j;
+ /* desired adjustment in second pass */
+ savedMove.moveUp = moveUp - move;
+
+ cf2_arrstack_push( hintmap->hintMoves, &savedMove );
+ }
+
+ /* move the edge(s) */
+ hintmap->edge[i].dsCoord += move;
+ if ( isPair )
+ hintmap->edge[j].dsCoord += move;
+ }
+
+ /* assert there are no overlaps in device space */
+ FT_ASSERT( i == 0 ||
+ hintmap->edge[i - 1].dsCoord <= hintmap->edge[i].dsCoord );
+ FT_ASSERT( i < j ||
+ hintmap->edge[i].dsCoord <= hintmap->edge[j].dsCoord );
+
+ /* adjust the scales, avoiding divide by zero */
+ if ( i > 0 )
+ {
+ if ( hintmap->edge[i].csCoord != hintmap->edge[i - 1].csCoord )
+ hintmap->edge[i - 1].scale =
+ FT_DivFix(
+ hintmap->edge[i].dsCoord - hintmap->edge[i - 1].dsCoord,
+ hintmap->edge[i].csCoord - hintmap->edge[i - 1].csCoord );
+ }
+
+ if ( isPair )
+ {
+ if ( hintmap->edge[j].csCoord != hintmap->edge[j - 1].csCoord )
+ hintmap->edge[j - 1].scale =
+ FT_DivFix(
+ hintmap->edge[j].dsCoord - hintmap->edge[j - 1].dsCoord,
+ hintmap->edge[j].csCoord - hintmap->edge[j - 1].csCoord );
+
+ i += 1; /* skip upper edge on next loop */
+ }
+ }
+
+ /* second pass tries to move non-optimal hints up, in case there is */
+ /* room now */
+ for ( i = cf2_arrstack_size( hintmap->hintMoves ); i > 0; i-- )
+ {
+ CF2_HintMove hintMove = (CF2_HintMove)
+ cf2_arrstack_getPointer( hintmap->hintMoves, i - 1 );
+
+
+ j = hintMove->j;
+
+ /* this was tested before the push, above */
+ FT_ASSERT( j < hintmap->count - 1 );
+
+ /* is there room to move up? */
+ if ( hintmap->edge[j + 1].dsCoord >=
+ hintmap->edge[j].dsCoord + hintMove->moveUp + CF2_MIN_COUNTER )
+ {
+ /* there is more room now, move edge up */
+ hintmap->edge[j].dsCoord += hintMove->moveUp;
+
+ if ( cf2_hint_isPair( &hintmap->edge[j] ) )
+ {
+ FT_ASSERT( j > 0 );
+ hintmap->edge[j - 1].dsCoord += hintMove->moveUp;
+ }
+ }
+ }
+ }
+
+
+ /* insert hint edges into map, sorted by csCoord */
+ static void
+ cf2_hintmap_insertHint( CF2_HintMap hintmap,
+ CF2_Hint bottomHintEdge,
+ CF2_Hint topHintEdge )
+ {
+ CF2_UInt indexInsert;
+
+ /* set default values, then check for edge hints */
+ FT_Bool isPair = TRUE;
+ CF2_Hint firstHintEdge = bottomHintEdge;
+ CF2_Hint secondHintEdge = topHintEdge;
+
+
+ /* one or none of the input params may be invalid when dealing with */
+ /* edge hints; at least one edge must be valid */
+ FT_ASSERT( cf2_hint_isValid( bottomHintEdge ) ||
+ cf2_hint_isValid( topHintEdge ) );
+
+ /* determine how many and which edges to insert */
+ if ( !cf2_hint_isValid( bottomHintEdge ) )
+ {
+ /* insert only the top edge */
+ firstHintEdge = topHintEdge;
+ isPair = FALSE;
+ }
+ else if ( !cf2_hint_isValid( topHintEdge ) )
+ {
+ /* insert only the bottom edge */
+ isPair = FALSE;
+ }
+
+ /* paired edges must be in proper order */
+ FT_ASSERT( !isPair ||
+ topHintEdge->csCoord >= bottomHintEdge->csCoord );
+
+ /* linear search to find index value of insertion point */
+ indexInsert = 0;
+ for ( ; indexInsert < hintmap->count; indexInsert++ )
+ {
+ if ( hintmap->edge[indexInsert].csCoord > firstHintEdge->csCoord )
+ break;
+ }
+
+ /*
+ * Discard any hints that overlap in character space. Most often,
+ * this is while building the initial map, but in theory, it can also
+ * occur because of darkening.
+ *
+ */
+ if ( indexInsert < hintmap->count )
+ {
+ /* we are inserting before an existing edge: */
+ /* verify that a new pair does not straddle the next edge */
+ if ( isPair &&
+ hintmap->edge[indexInsert].csCoord < secondHintEdge->csCoord )
+ return; /* ignore overlapping stem hint */
+
+ /* verify that we are not inserting between paired edges */
+ if ( cf2_hint_isPairTop( &hintmap->edge[indexInsert] ) )
+ return; /* ignore overlapping stem hint */
+ }
+
+ /* recompute device space locations using initial hint map */
+ if ( cf2_hintmap_isValid( hintmap->initialHintMap ) &&
+ !cf2_hint_isLocked( firstHintEdge ) )
+ {
+ if ( isPair )
+ {
+ /* Use hint map to position the center of stem, and nominal scale */
+ /* to position the two edges. This preserves the stem width. */
+ CF2_Fixed midpoint = cf2_hintmap_map(
+ hintmap->initialHintMap,
+ ( secondHintEdge->csCoord +
+ firstHintEdge->csCoord ) / 2 );
+ CF2_Fixed halfWidth = FT_MulFix(
+ ( secondHintEdge->csCoord -
+ firstHintEdge->csCoord ) / 2,
+ hintmap->scale );
+
+
+ firstHintEdge->dsCoord = midpoint - halfWidth;
+ secondHintEdge->dsCoord = midpoint + halfWidth;
+ }
+ else
+ firstHintEdge->dsCoord = cf2_hintmap_map( hintmap->initialHintMap,
+ firstHintEdge->csCoord );
+ }
+
+ /* discard any hints that overlap in device space; this can occur */
+ /* because locked hints have been moved to align with blue zones */
+ if ( indexInsert > 0 )
+ {
+ /* we are inserting after an existing edge */
+ if ( firstHintEdge->dsCoord < hintmap->edge[indexInsert - 1].dsCoord )
+ return;
+ }
+
+ if ( indexInsert < hintmap->count )
+ {
+ /* we are inserting before an existing edge */
+ if ( isPair )
+ {
+ if ( secondHintEdge->dsCoord > hintmap->edge[indexInsert].dsCoord )
+ return;
+ }
+ else
+ {
+ if ( firstHintEdge->dsCoord > hintmap->edge[indexInsert].dsCoord )
+ return;
+ }
+ }
+
+ /* make room to insert */
+ {
+ CF2_Int iSrc = hintmap->count - 1;
+ CF2_Int iDst = isPair ? hintmap->count + 1 : hintmap->count;
+
+ CF2_Int count = hintmap->count - indexInsert;
+
+
+ if ( iDst >= CF2_MAX_HINT_EDGES )
+ {
+ FT_TRACE4(( "cf2_hintmap_insertHint: too many hintmaps\n" ));
+ return;
+ }
+
+ while ( count-- )
+ hintmap->edge[iDst--] = hintmap->edge[iSrc--];
+
+ /* insert first edge */
+ hintmap->edge[indexInsert] = *firstHintEdge; /* copy struct */
+ hintmap->count += 1;
+
+ if ( isPair )
+ {
+ /* insert second edge */
+ hintmap->edge[indexInsert + 1] = *secondHintEdge; /* copy struct */
+ hintmap->count += 1;
+ }
+ }
+
+ return;
+ }
+
+
+ /*
+ * Build a map from hints and mask.
+ *
+ * This function may recur one level if `hintmap->initialHintMap' is not yet
+ * valid.
+ * If `initialMap' is true, simply build initial map.
+ *
+ * Synthetic hints are used in two ways. A hint at zero is inserted, if
+ * needed, in the initial hint map, to prevent translations from
+ * propagating across the origin. If synthetic em box hints are enabled
+ * for ideographic dictionaries, then they are inserted in all hint
+ * maps, including the initial one.
+ *
+ */
+ FT_LOCAL_DEF( void )
+ cf2_hintmap_build( CF2_HintMap hintmap,
+ CF2_ArrStack hStemHintArray,
+ CF2_ArrStack vStemHintArray,
+ CF2_HintMask hintMask,
+ CF2_Fixed hintOrigin,
+ FT_Bool initialMap )
+ {
+ FT_Byte* maskPtr;
+
+ CF2_Font font = hintmap->font;
+ CF2_HintMaskRec tempHintMask;
+
+ size_t bitCount, i;
+ FT_Byte maskByte;
+
+
+ /* check whether initial map is constructed */
+ if ( !initialMap && !cf2_hintmap_isValid( hintmap->initialHintMap ) )
+ {
+ /* make recursive call with initialHintMap and temporary mask; */
+ /* temporary mask will get all bits set, below */
+ cf2_hintmask_init( &tempHintMask, hintMask->error );
+ cf2_hintmap_build( hintmap->initialHintMap,
+ hStemHintArray,
+ vStemHintArray,
+ &tempHintMask,
+ hintOrigin,
+ TRUE );
+ }
+
+ if ( !cf2_hintmask_isValid( hintMask ) )
+ {
+ /* without a hint mask, assume all hints are active */
+ cf2_hintmask_setAll( hintMask,
+ cf2_arrstack_size( hStemHintArray ) +
+ cf2_arrstack_size( vStemHintArray ) );
+ }
+
+ /* begin by clearing the map */
+ hintmap->count = 0;
+ hintmap->lastIndex = 0;
+
+ /* make a copy of the hint mask so we can modify it */
+ tempHintMask = *hintMask;
+ maskPtr = cf2_hintmask_getMaskPtr( &tempHintMask );
+
+ /* use the hStem hints only, which are first in the mask */
+ /* TODO: compare this to cffhintmaskGetBitCount */
+ bitCount = cf2_arrstack_size( hStemHintArray );
+
+ /* synthetic embox hints get highest priority */
+ if ( font->blues.doEmBoxHints )
+ {
+ CF2_HintRec dummy;
+
+
+ cf2_hint_initZero( &dummy ); /* invalid hint map element */
+
+ /* ghost bottom */
+ cf2_hintmap_insertHint( hintmap,
+ &font->blues.emBoxBottomEdge,
+ &dummy );
+ /* ghost top */
+ cf2_hintmap_insertHint( hintmap,
+ &dummy,
+ &font->blues.emBoxTopEdge );
+ }
+
+ /* insert hints captured by a blue zone or already locked (higher */
+ /* priority) */
+ for ( i = 0, maskByte = 0x80; i < bitCount; i++ )
+ {
+ if ( maskByte & *maskPtr )
+ {
+ /* expand StemHint into two `CF2_Hint' elements */
+ CF2_HintRec bottomHintEdge, topHintEdge;
+
+
+ cf2_hint_init( &bottomHintEdge,
+ hStemHintArray,
+ i,
+ font,
+ hintOrigin,
+ hintmap->scale,
+ TRUE /* bottom */ );
+ cf2_hint_init( &topHintEdge,
+ hStemHintArray,
+ i,
+ font,
+ hintOrigin,
+ hintmap->scale,
+ FALSE /* top */ );
+
+ if ( cf2_hint_isLocked( &bottomHintEdge ) ||
+ cf2_hint_isLocked( &topHintEdge ) ||
+ cf2_blues_capture( &font->blues,
+ &bottomHintEdge,
+ &topHintEdge ) )
+ {
+ /* insert captured hint into map */
+ cf2_hintmap_insertHint( hintmap, &bottomHintEdge, &topHintEdge );
+
+ *maskPtr &= ~maskByte; /* turn off the bit for this hint */
+ }
+ }
+
+ if ( ( i & 7 ) == 7 )
+ {
+ /* move to next mask byte */
+ maskPtr++;
+ maskByte = 0x80;
+ }
+ else
+ maskByte >>= 1;
+ }
+
+ /* initial hint map includes only captured hints plus maybe one at 0 */
+
+ /*
+ * TODO: There is a problem here because we are trying to build a
+ * single hint map containing all captured hints. It is
+ * possible for there to be conflicts between captured hints,
+ * either because of darkening or because the hints are in
+ * separate hint zones (we are ignoring hint zones for the
+ * initial map). An example of the latter is MinionPro-Regular
+ * v2.030 glyph 883 (Greek Capital Alpha with Psili) at 15ppem.
+ * A stem hint for the psili conflicts with the top edge hint
+ * for the base character. The stem hint gets priority because
+ * of its sort order. In glyph 884 (Greek Capital Alpha with
+ * Psili and Oxia), the top of the base character gets a stem
+ * hint, and the psili does not. This creates different initial
+ * maps for the two glyphs resulting in different renderings of
+ * the base character. Will probably defer this either as not
+ * worth the cost or as a font bug. I don't think there is any
+ * good reason for an accent to be captured by an alignment
+ * zone. -darnold 2/12/10
+ */
+
+ if ( initialMap )
+ {
+ /* Apply a heuristic that inserts a point for (0,0), unless it's */
+ /* already covered by a mapping. This locks the baseline for glyphs */
+ /* that have no baseline hints. */
+
+ if ( hintmap->count == 0 ||
+ hintmap->edge[0].csCoord > 0 ||
+ hintmap->edge[hintmap->count - 1].csCoord < 0 )
+ {
+ /* all edges are above 0 or all edges are below 0; */
+ /* construct a locked edge hint at 0 */
+
+ CF2_HintRec edge, invalid;
+
+
+ cf2_hint_initZero( &edge );
+
+ edge.flags = CF2_GhostBottom |
+ CF2_Locked |
+ CF2_Synthetic;
+ edge.scale = hintmap->scale;
+
+ cf2_hint_initZero( &invalid );
+ cf2_hintmap_insertHint( hintmap, &edge, &invalid );
+ }
+ }
+ else
+ {
+ /* insert remaining hints */
+
+ maskPtr = cf2_hintmask_getMaskPtr( &tempHintMask );
+
+ for ( i = 0, maskByte = 0x80; i < bitCount; i++ )
+ {
+ if ( maskByte & *maskPtr )
+ {
+ CF2_HintRec bottomHintEdge, topHintEdge;
+
+
+ cf2_hint_init( &bottomHintEdge,
+ hStemHintArray,
+ i,
+ font,
+ hintOrigin,
+ hintmap->scale,
+ TRUE /* bottom */ );
+ cf2_hint_init( &topHintEdge,
+ hStemHintArray,
+ i,
+ font,
+ hintOrigin,
+ hintmap->scale,
+ FALSE /* top */ );
+
+ cf2_hintmap_insertHint( hintmap, &bottomHintEdge, &topHintEdge );
+ }
+
+ if ( ( i & 7 ) == 7 )
+ {
+ /* move to next mask byte */
+ maskPtr++;
+ maskByte = 0x80;
+ }
+ else
+ maskByte >>= 1;
+ }
+ }
+
+ /*
+ * Note: The following line is a convenient place to break when
+ * debugging hinting. Examine `hintmap->edge' for the list of
+ * enabled hints, then step over the call to see the effect of
+ * adjustment. We stop here first on the recursive call that
+ * creates the initial map, and then on each counter group and
+ * hint zone.
+ */
+
+ /* adjust positions of hint edges that are not locked to blue zones */
+ cf2_hintmap_adjustHints( hintmap );
+
+ /* save the position of all hints that were used in this hint map; */
+ /* if we use them again, we'll locate them in the same position */
+ if ( !initialMap )
+ {
+ for ( i = 0; i < hintmap->count; i++ )
+ {
+ if ( !cf2_hint_isSynthetic( &hintmap->edge[i] ) )
+ {
+ /* Note: include both valid and invalid edges */
+ /* Note: top and bottom edges are copied back separately */
+ CF2_StemHint stemhint = (CF2_StemHint)
+ cf2_arrstack_getPointer( hStemHintArray,
+ hintmap->edge[i].index );
+
+
+ if ( cf2_hint_isTop( &hintmap->edge[i] ) )
+ stemhint->maxDS = hintmap->edge[i].dsCoord;
+ else
+ stemhint->minDS = hintmap->edge[i].dsCoord;
+
+ stemhint->used = TRUE;
+ }
+ }
+ }
+
+ /* hint map is ready to use */
+ hintmap->isValid = TRUE;
+
+ /* remember this mask has been used */
+ cf2_hintmask_setNew( hintMask, FALSE );
+ }
+
+
+ FT_LOCAL_DEF( void )
+ cf2_glyphpath_init( CF2_GlyphPath glyphpath,
+ CF2_Font font,
+ CF2_OutlineCallbacks callbacks,
+ CF2_Fixed scaleY,
+ /* CF2_Fixed hShift, */
+ CF2_ArrStack hStemHintArray,
+ CF2_ArrStack vStemHintArray,
+ CF2_HintMask hintMask,
+ CF2_Fixed hintOriginY,
+ const CF2_Blues blues,
+ const FT_Vector* fractionalTranslation )
+ {
+ FT_ZERO( glyphpath );
+
+ glyphpath->font = font;
+ glyphpath->callbacks = callbacks;
+
+ cf2_arrstack_init( &glyphpath->hintMoves,
+ font->memory,
+ &font->error,
+ sizeof ( CF2_HintMoveRec ) );
+
+ cf2_hintmap_init( &glyphpath->initialHintMap,
+ font,
+ &glyphpath->initialHintMap,
+ &glyphpath->hintMoves,
+ scaleY );
+ cf2_hintmap_init( &glyphpath->firstHintMap,
+ font,
+ &glyphpath->initialHintMap,
+ &glyphpath->hintMoves,
+ scaleY );
+ cf2_hintmap_init( &glyphpath->hintMap,
+ font,
+ &glyphpath->initialHintMap,
+ &glyphpath->hintMoves,
+ scaleY );
+
+ glyphpath->scaleX = font->innerTransform.a;
+ glyphpath->scaleC = font->innerTransform.c;
+ glyphpath->scaleY = font->innerTransform.d;
+
+ glyphpath->fractionalTranslation = *fractionalTranslation;
+
+#if 0
+ glyphpath->hShift = hShift; /* for fauxing */
+#endif
+
+ glyphpath->hStemHintArray = hStemHintArray;
+ glyphpath->vStemHintArray = vStemHintArray;
+ glyphpath->hintMask = hintMask; /* ptr to current mask */
+ glyphpath->hintOriginY = hintOriginY;
+ glyphpath->blues = blues;
+ glyphpath->darken = font->darkened; /* TODO: should we make copies? */
+ glyphpath->xOffset = font->darkenX;
+ glyphpath->yOffset = font->darkenY;
+ glyphpath->miterLimit = 2 * FT_MAX(
+ cf2_fixedAbs( glyphpath->xOffset ),
+ cf2_fixedAbs( glyphpath->yOffset ) );
+
+ /* .1 character space unit */
+ glyphpath->snapThreshold = cf2_floatToFixed( 0.1f );
+
+ glyphpath->moveIsPending = TRUE;
+ glyphpath->pathIsOpen = FALSE;
+ glyphpath->elemIsQueued = FALSE;
+ }
+
+
+ FT_LOCAL_DEF( void )
+ cf2_glyphpath_finalize( CF2_GlyphPath glyphpath )
+ {
+ cf2_arrstack_finalize( &glyphpath->hintMoves );
+ }
+
+
+ /*
+ * Hint point in y-direction and apply outerTransform.
+ * Input `current' hint map (which is actually delayed by one element).
+ * Input x,y point in Character Space.
+ * Output x,y point in Device Space, including translation.
+ */
+ static void
+ cf2_glyphpath_hintPoint( CF2_GlyphPath glyphpath,
+ CF2_HintMap hintmap,
+ FT_Vector* ppt,
+ CF2_Fixed x,
+ CF2_Fixed y )
+ {
+ FT_Vector pt; /* hinted point in upright DS */
+
+
+ pt.x = FT_MulFix( glyphpath->scaleX, x ) +
+ FT_MulFix( glyphpath->scaleC, y );
+ pt.y = cf2_hintmap_map( hintmap, y );
+
+ ppt->x = FT_MulFix( glyphpath->font->outerTransform.a, pt.x ) +
+ FT_MulFix( glyphpath->font->outerTransform.c, pt.y ) +
+ glyphpath->fractionalTranslation.x;
+ ppt->y = FT_MulFix( glyphpath->font->outerTransform.b, pt.x ) +
+ FT_MulFix( glyphpath->font->outerTransform.d, pt.y ) +
+ glyphpath->fractionalTranslation.y;
+ }
+
+
+ /*
+ * From two line segments, (u1,u2) and (v1,v2), compute a point of
+ * intersection on the corresponding lines.
+ * Return false if no intersection is found, or if the intersection is
+ * too far away from the ends of the line segments, u2 and v1.
+ *
+ */
+ static FT_Bool
+ cf2_glyphpath_computeIntersection( CF2_GlyphPath glyphpath,
+ const FT_Vector* u1,
+ const FT_Vector* u2,
+ const FT_Vector* v1,
+ const FT_Vector* v2,
+ FT_Vector* intersection )
+ {
+ /*
+ * Let `u' be a zero-based vector from the first segment, `v' from the
+ * second segment.
+ * Let `w 'be the zero-based vector from `u1' to `v1'.
+ * `perp' is the `perpendicular dot product'; see
+ * http://mathworld.wolfram.com/PerpDotProduct.html.
+ * `s' is the parameter for the parametric line for the first segment
+ * (`u').
+ *
+ * See notation in
+ * http://softsurfer.com/Archive/algorithm_0104/algorithm_0104B.htm.
+ * Calculations are done in 16.16, but must handle the squaring of
+ * line lengths in character space. We scale all vectors by 1/32 to
+ * avoid overflow. This allows values up to 4095 to be squared. The
+ * scale factor cancels in the divide.
+ *
+ * TODO: the scale factor could be computed from UnitsPerEm.
+ *
+ */
+
+#define cf2_perp( a, b ) \
+ ( FT_MulFix( a.x, b.y ) - FT_MulFix( a.y, b.x ) )
+
+ /* round and divide by 32 */
+#define CF2_CS_SCALE( x ) \
+ ( ( (x) + 0x10 ) >> 5 )
+
+ FT_Vector u, v, w; /* scaled vectors */
+ CF2_Fixed denominator, s;
+
+
+ u.x = CF2_CS_SCALE( u2->x - u1->x );
+ u.y = CF2_CS_SCALE( u2->y - u1->y );
+ v.x = CF2_CS_SCALE( v2->x - v1->x );
+ v.y = CF2_CS_SCALE( v2->y - v1->y );
+ w.x = CF2_CS_SCALE( v1->x - u1->x );
+ w.y = CF2_CS_SCALE( v1->y - u1->y );
+
+ denominator = cf2_perp( u, v );
+
+ if ( denominator == 0 )
+ return FALSE; /* parallel or coincident lines */
+
+ s = FT_DivFix( cf2_perp( w, v ), denominator );
+
+ intersection->x = u1->x + FT_MulFix( s, u2->x - u1->x );
+ intersection->y = u1->y + FT_MulFix( s, u2->y - u1->y );
+
+ /*
+ * Special case snapping for horizontal and vertical lines.
+ * This cleans up intersections and reduces problems with winding
+ * order detection.
+ * Sample case is sbc cd KozGoPr6N-Medium.otf 20 16685.
+ * Note: these calculations are in character space.
+ *
+ */
+
+ if ( u1->x == u2->x &&
+ cf2_fixedAbs( intersection->x - u1->x ) < glyphpath->snapThreshold )
+ intersection->x = u1->x;
+ if ( u1->y == u2->y &&
+ cf2_fixedAbs( intersection->y - u1->y ) < glyphpath->snapThreshold )
+ intersection->y = u1->y;
+
+ if ( v1->x == v2->x &&
+ cf2_fixedAbs( intersection->x - v1->x ) < glyphpath->snapThreshold )
+ intersection->x = v1->x;
+ if ( v1->y == v2->y &&
+ cf2_fixedAbs( intersection->y - v1->y ) < glyphpath->snapThreshold )
+ intersection->y = v1->y;
+
+ /* limit the intersection distance from midpoint of u2 and v1 */
+ if ( cf2_fixedAbs( intersection->x - ( u2->x + v1->x ) / 2 ) >
+ glyphpath->miterLimit ||
+ cf2_fixedAbs( intersection->y - ( u2->y + v1->y ) / 2 ) >
+ glyphpath->miterLimit )
+ return FALSE;
+
+ return TRUE;
+ }
+
+
+ /*
+ * Push the cached element (glyphpath->prevElem*) to the outline
+ * consumer. When a darkening offset is used, the end point of the
+ * cached element may be adjusted to an intersection point or it may be
+ * connected by a line to the current element. This calculation must
+ * use a HintMap that was valid at the time the element was saved. For
+ * the first point in a subpath, that is a saved HintMap. For most
+ * elements, it just means the caller has delayed building a HintMap
+ * from the current HintMask.
+ *
+ * Transform each point with outerTransform and call the outline
+ * callbacks. This is a general 3x3 transform:
+ *
+ * x' = a*x + c*y + tx, y' = b*x + d*y + ty
+ *
+ * but it uses 4 elements from CF2_Font and the translation part
+ * from CF2_GlyphPath.
+ *
+ */
+ static void
+ cf2_glyphpath_pushPrevElem( CF2_GlyphPath glyphpath,
+ CF2_HintMap hintmap,
+ FT_Vector* nextP0,
+ FT_Vector nextP1,
+ FT_Bool close )
+ {
+ CF2_CallbackParamsRec params;
+
+ FT_Vector* prevP0;
+ FT_Vector* prevP1;
+
+ FT_Vector intersection = { 0, 0 };
+ FT_Bool useIntersection = FALSE;
+
+
+ FT_ASSERT( glyphpath->prevElemOp == CF2_PathOpLineTo ||
+ glyphpath->prevElemOp == CF2_PathOpCubeTo );
+
+ if ( glyphpath->prevElemOp == CF2_PathOpLineTo )
+ {
+ prevP0 = &glyphpath->prevElemP0;
+ prevP1 = &glyphpath->prevElemP1;
+ }
+ else
+ {
+ prevP0 = &glyphpath->prevElemP2;
+ prevP1 = &glyphpath->prevElemP3;
+ }
+
+ /* optimization: if previous and next elements are offset by the same */
+ /* amount, then there will be no gap, and no need to compute an */
+ /* intersection. */
+ if ( prevP1->x != nextP0->x || prevP1->y != nextP0->y )
+ {
+ /* previous element does not join next element: */
+ /* adjust end point of previous element to the intersection */
+ useIntersection = cf2_glyphpath_computeIntersection( glyphpath,
+ prevP0,
+ prevP1,
+ nextP0,
+ &nextP1,
+ &intersection );
+ if ( useIntersection )
+ {
+ /* modify the last point of the cached element (either line or */
+ /* curve) */
+ *prevP1 = intersection;
+ }
+ }
+
+ params.pt0 = glyphpath->currentDS;
+
+ switch( glyphpath->prevElemOp )
+ {
+ case CF2_PathOpLineTo:
+ params.op = CF2_PathOpLineTo;
+
+ /* note: pt2 and pt3 are unused */
+ cf2_glyphpath_hintPoint( glyphpath,
+ hintmap,
+ &params.pt1,
+ glyphpath->prevElemP1.x,
+ glyphpath->prevElemP1.y );
+
+ glyphpath->callbacks->lineTo( glyphpath->callbacks, &params );
+
+ glyphpath->currentDS = params.pt1;
+
+ break;
+
+ case CF2_PathOpCubeTo:
+ params.op = CF2_PathOpCubeTo;
+
+ /* TODO: should we intersect the interior joins (p1-p2 and p2-p3)? */
+ cf2_glyphpath_hintPoint( glyphpath,
+ hintmap,
+ &params.pt1,
+ glyphpath->prevElemP1.x,
+ glyphpath->prevElemP1.y );
+ cf2_glyphpath_hintPoint( glyphpath,
+ hintmap,
+ &params.pt2,
+ glyphpath->prevElemP2.x,
+ glyphpath->prevElemP2.y );
+ cf2_glyphpath_hintPoint( glyphpath,
+ hintmap,
+ &params.pt3,
+ glyphpath->prevElemP3.x,
+ glyphpath->prevElemP3.y );
+
+ glyphpath->callbacks->cubeTo( glyphpath->callbacks, &params );
+
+ glyphpath->currentDS = params.pt3;
+
+ break;
+ }
+
+ if ( !useIntersection || close )
+ {
+ /* insert connecting line between end of previous element and start */
+ /* of current one */
+ /* note: at the end of a subpath, we might do both, so use `nextP0' */
+ /* before we change it, below */
+
+ cf2_glyphpath_hintPoint( glyphpath,
+ hintmap,
+ &params.pt1,
+ nextP0->x,
+ nextP0->y );
+
+ if ( params.pt1.x != glyphpath->currentDS.x ||
+ params.pt1.y != glyphpath->currentDS.y )
+ {
+ /* length is nonzero */
+ params.op = CF2_PathOpLineTo;
+ params.pt0 = glyphpath->currentDS;
+
+ /* note: pt2 and pt3 are unused */
+ glyphpath->callbacks->lineTo( glyphpath->callbacks, &params );
+
+ glyphpath->currentDS = params.pt1;
+ }
+ }
+
+ if ( useIntersection )
+ {
+ /* return intersection point to caller */
+ *nextP0 = intersection;
+ }
+ }
+
+
+ /* push a MoveTo element based on current point and offset of current */
+ /* element */
+ static void
+ cf2_glyphpath_pushMove( CF2_GlyphPath glyphpath,
+ FT_Vector start )
+ {
+ CF2_CallbackParamsRec params;
+
+
+ params.op = CF2_PathOpMoveTo;
+ params.pt0 = glyphpath->currentDS;
+
+ /* Test if move has really happened yet; it would have called */
+ /* `cf2_hintmap_build' to set `isValid'. */
+ if ( !cf2_hintmap_isValid( &glyphpath->hintMap ) )
+ {
+ /* we are here iff first subpath is missing a moveto operator: */
+ /* synthesize first moveTo to finish initialization of hintMap */
+ cf2_glyphpath_moveTo( glyphpath,
+ glyphpath->start.x,
+ glyphpath->start.y );
+ }
+
+ cf2_glyphpath_hintPoint( glyphpath,
+ &glyphpath->hintMap,
+ &params.pt1,
+ start.x,
+ start.y );
+
+ /* note: pt2 and pt3 are unused */
+ glyphpath->callbacks->moveTo( glyphpath->callbacks, &params );
+
+ glyphpath->currentDS = params.pt1;
+ glyphpath->offsetStart0 = start;
+ }
+
+
+ /*
+ * All coordinates are in character space.
+ * On input, (x1, y1) and (x2, y2) give line segment.
+ * On output, (x, y) give offset vector.
+ * We use a piecewise approximation to trig functions.
+ *
+ * TODO: Offset true perpendicular and proper length
+ * supply the y-translation for hinting here, too,
+ * that adds yOffset unconditionally to *y.
+ */
+ static void
+ cf2_glyphpath_computeOffset( CF2_GlyphPath glyphpath,
+ CF2_Fixed x1,
+ CF2_Fixed y1,
+ CF2_Fixed x2,
+ CF2_Fixed y2,
+ CF2_Fixed* x,
+ CF2_Fixed* y )
+ {
+ CF2_Fixed dx = x2 - x1;
+ CF2_Fixed dy = y2 - y1;
+
+
+ /* note: negative offsets don't work here; negate deltas to change */
+ /* quadrants, below */
+ if ( glyphpath->font->reverseWinding )
+ {
+ dx = -dx;
+ dy = -dy;
+ }
+
+ *x = *y = 0;
+
+ if ( !glyphpath->darken )
+ return;
+
+ /* add momentum for this path element */
+ glyphpath->callbacks->windingMomentum +=
+ cf2_getWindingMomentum( x1, y1, x2, y2 );
+
+ /* note: allow mixed integer and fixed multiplication here */
+ if ( dx >= 0 )
+ {
+ if ( dy >= 0 )
+ {
+ /* first quadrant, +x +y */
+
+ if ( dx > 2 * dy )
+ {
+ /* +x */
+ *x = 0;
+ *y = 0;
+ }
+ else if ( dy > 2 * dx )
+ {
+ /* +y */
+ *x = glyphpath->xOffset;
+ *y = glyphpath->yOffset;
+ }
+ else
+ {
+ /* +x +y */
+ *x = FT_MulFix( cf2_floatToFixed( 0.7 ),
+ glyphpath->xOffset );
+ *y = FT_MulFix( cf2_floatToFixed( 1.0 - 0.7 ),
+ glyphpath->yOffset );
+ }
+ }
+ else
+ {
+ /* fourth quadrant, +x -y */
+
+ if ( dx > -2 * dy )
+ {
+ /* +x */
+ *x = 0;
+ *y = 0;
+ }
+ else if ( -dy > 2 * dx )
+ {
+ /* -y */
+ *x = -glyphpath->xOffset;
+ *y = glyphpath->yOffset;
+ }
+ else
+ {
+ /* +x -y */
+ *x = FT_MulFix( cf2_floatToFixed( -0.7 ),
+ glyphpath->xOffset );
+ *y = FT_MulFix( cf2_floatToFixed( 1.0 - 0.7 ),
+ glyphpath->yOffset );
+ }
+ }
+ }
+ else
+ {
+ if ( dy >= 0 )
+ {
+ /* second quadrant, -x +y */
+
+ if ( -dx > 2 * dy )
+ {
+ /* -x */
+ *x = 0;
+ *y = 2 * glyphpath->yOffset;
+ }
+ else if ( dy > -2 * dx )
+ {
+ /* +y */
+ *x = glyphpath->xOffset;
+ *y = glyphpath->yOffset;
+ }
+ else
+ {
+ /* -x +y */
+ *x = FT_MulFix( cf2_floatToFixed( 0.7 ),
+ glyphpath->xOffset );
+ *y = FT_MulFix( cf2_floatToFixed( 1.0 + 0.7 ),
+ glyphpath->yOffset );
+ }
+ }
+ else
+ {
+ /* third quadrant, -x -y */
+
+ if ( -dx > -2 * dy )
+ {
+ /* -x */
+ *x = 0;
+ *y = 2 * glyphpath->yOffset;
+ }
+ else if ( -dy > -2 * dx )
+ {
+ /* -y */
+ *x = -glyphpath->xOffset;
+ *y = glyphpath->xOffset;
+ }
+ else
+ {
+ /* -x -y */
+ *x = FT_MulFix( cf2_floatToFixed( -0.7 ),
+ glyphpath->xOffset );
+ *y = FT_MulFix( cf2_floatToFixed( 1.0 + 0.7 ),
+ glyphpath->yOffset );
+ }
+ }
+ }
+ }
+
+
+ FT_LOCAL_DEF( void )
+ cf2_glyphpath_moveTo( CF2_GlyphPath glyphpath,
+ CF2_Fixed x,
+ CF2_Fixed y )
+ {
+ cf2_glyphpath_closeOpenPath( glyphpath );
+
+ /* save the parameters of the move for later, when we'll know how to */
+ /* offset it; */
+ /* also save last move point */
+ glyphpath->currentCS.x = glyphpath->start.x = x;
+ glyphpath->currentCS.y = glyphpath->start.y = y;
+
+ glyphpath->moveIsPending = TRUE;
+
+ /* ensure we have a valid map with current mask */
+ if ( !cf2_hintmap_isValid( &glyphpath->hintMap ) ||
+ cf2_hintmask_isNew( glyphpath->hintMask ) )
+ cf2_hintmap_build( &glyphpath->hintMap,
+ glyphpath->hStemHintArray,
+ glyphpath->vStemHintArray,
+ glyphpath->hintMask,
+ glyphpath->hintOriginY,
+ FALSE );
+
+ /* save a copy of current HintMap to use when drawing initial point */
+ glyphpath->firstHintMap = glyphpath->hintMap; /* structure copy */
+ }
+
+
+ FT_LOCAL_DEF( void )
+ cf2_glyphpath_lineTo( CF2_GlyphPath glyphpath,
+ CF2_Fixed x,
+ CF2_Fixed y )
+ {
+ CF2_Fixed xOffset, yOffset;
+ FT_Vector P0, P1;
+
+
+ /* can't compute offset of zero length line, so ignore them */
+ if ( glyphpath->currentCS.x == x && glyphpath->currentCS.y == y )
+ return;
+
+ cf2_glyphpath_computeOffset( glyphpath,
+ glyphpath->currentCS.x,
+ glyphpath->currentCS.y,
+ x,
+ y,
+ &xOffset,
+ &yOffset );
+
+ /* construct offset points */
+ P0.x = glyphpath->currentCS.x + xOffset;
+ P0.y = glyphpath->currentCS.y + yOffset;
+ P1.x = x + xOffset;
+ P1.y = y + yOffset;
+
+ if ( glyphpath->moveIsPending )
+ {
+ /* emit offset 1st point as MoveTo */
+ cf2_glyphpath_pushMove( glyphpath, P0 );
+
+ glyphpath->moveIsPending = FALSE; /* adjust state machine */
+ glyphpath->pathIsOpen = TRUE;
+
+ glyphpath->offsetStart1 = P1; /* record second point */
+ }
+
+ if ( glyphpath->elemIsQueued )
+ {
+ FT_ASSERT( cf2_hintmap_isValid( &glyphpath->hintMap ) );
+
+ cf2_glyphpath_pushPrevElem( glyphpath,
+ &glyphpath->hintMap,
+ &P0,
+ P1,
+ FALSE );
+ }
+
+ /* queue the current element with offset points */
+ glyphpath->elemIsQueued = TRUE;
+ glyphpath->prevElemOp = CF2_PathOpLineTo;
+ glyphpath->prevElemP0 = P0;
+ glyphpath->prevElemP1 = P1;
+
+ /* update current map */
+ if ( cf2_hintmask_isNew( glyphpath->hintMask ) )
+ cf2_hintmap_build( &glyphpath->hintMap,
+ glyphpath->hStemHintArray,
+ glyphpath->vStemHintArray,
+ glyphpath->hintMask,
+ glyphpath->hintOriginY,
+ FALSE );
+
+ glyphpath->currentCS.x = x; /* pre-offset current point */
+ glyphpath->currentCS.y = y;
+ }
+
+
+ FT_LOCAL_DEF( void )
+ cf2_glyphpath_curveTo( CF2_GlyphPath glyphpath,
+ CF2_Fixed x1,
+ CF2_Fixed y1,
+ CF2_Fixed x2,
+ CF2_Fixed y2,
+ CF2_Fixed x3,
+ CF2_Fixed y3 )
+ {
+ CF2_Fixed xOffset1, yOffset1, xOffset3, yOffset3;
+ FT_Vector P0, P1, P2, P3;
+
+
+ /* TODO: ignore zero length portions of curve?? */
+ cf2_glyphpath_computeOffset( glyphpath,
+ glyphpath->currentCS.x,
+ glyphpath->currentCS.y,
+ x1,
+ y1,
+ &xOffset1,
+ &yOffset1 );
+ cf2_glyphpath_computeOffset( glyphpath,
+ x2,
+ y2,
+ x3,
+ y3,
+ &xOffset3,
+ &yOffset3 );
+
+ /* add momentum from the middle segment */
+ glyphpath->callbacks->windingMomentum +=
+ cf2_getWindingMomentum( x1, y1, x2, y2 );
+
+ /* construct offset points */
+ P0.x = glyphpath->currentCS.x + xOffset1;
+ P0.y = glyphpath->currentCS.y + yOffset1;
+ P1.x = x1 + xOffset1;
+ P1.y = y1 + yOffset1;
+ /* note: preserve angle of final segment by using offset3 at both ends */
+ P2.x = x2 + xOffset3;
+ P2.y = y2 + yOffset3;
+ P3.x = x3 + xOffset3;
+ P3.y = y3 + yOffset3;
+
+ if ( glyphpath->moveIsPending )
+ {
+ /* emit offset 1st point as MoveTo */
+ cf2_glyphpath_pushMove( glyphpath, P0 );
+
+ glyphpath->moveIsPending = FALSE;
+ glyphpath->pathIsOpen = TRUE;
+
+ glyphpath->offsetStart1 = P1; /* record second point */
+ }
+
+ if ( glyphpath->elemIsQueued )
+ {
+ FT_ASSERT( cf2_hintmap_isValid( &glyphpath->hintMap ) );
+
+ cf2_glyphpath_pushPrevElem( glyphpath,
+ &glyphpath->hintMap,
+ &P0,
+ P1,
+ FALSE );
+ }
+
+ /* queue the current element with offset points */
+ glyphpath->elemIsQueued = TRUE;
+ glyphpath->prevElemOp = CF2_PathOpCubeTo;
+ glyphpath->prevElemP0 = P0;
+ glyphpath->prevElemP1 = P1;
+ glyphpath->prevElemP2 = P2;
+ glyphpath->prevElemP3 = P3;
+
+ /* update current map */
+ if ( cf2_hintmask_isNew( glyphpath->hintMask ) )
+ cf2_hintmap_build( &glyphpath->hintMap,
+ glyphpath->hStemHintArray,
+ glyphpath->vStemHintArray,
+ glyphpath->hintMask,
+ glyphpath->hintOriginY,
+ FALSE );
+
+ glyphpath->currentCS.x = x3; /* pre-offset current point */
+ glyphpath->currentCS.y = y3;
+ }
+
+
+ FT_LOCAL_DEF( void )
+ cf2_glyphpath_closeOpenPath( CF2_GlyphPath glyphpath )
+ {
+ if ( glyphpath->pathIsOpen )
+ {
+ FT_ASSERT( cf2_hintmap_isValid( &glyphpath->firstHintMap ) );
+
+ /* since we need to apply an offset to the implicit lineto, we make */
+ /* it explicit here */
+ cf2_glyphpath_lineTo( glyphpath,
+ glyphpath->start.x,
+ glyphpath->start.y );
+
+ /* Draw previous element (the explicit LineTo we just created, */
+ /* above) and connect it to the start point, but with the offset we */
+ /* saved from the first element. */
+ /* Use the saved HintMap, too. */
+ FT_ASSERT( glyphpath->elemIsQueued );
+
+ cf2_glyphpath_pushPrevElem( glyphpath,
+ &glyphpath->firstHintMap,
+ &glyphpath->offsetStart0,
+ glyphpath->offsetStart1,
+ TRUE );
+
+ /* reset state machine */
+ glyphpath->moveIsPending = TRUE;
+ glyphpath->pathIsOpen = FALSE;
+ glyphpath->elemIsQueued = FALSE;
+ }
+ }
+
+
+/* END */
diff --git a/src/cff/cf2hints.h b/src/cff/cf2hints.h
new file mode 100644
index 0000000..c4fa922
--- /dev/null
+++ b/src/cff/cf2hints.h
@@ -0,0 +1,287 @@
+/***************************************************************************/
+/* */
+/* cf2hints.h */
+/* */
+/* Adobe's code for handling CFF hints (body). */
+/* */
+/* Copyright 2007-2013 Adobe Systems Incorporated. */
+/* */
+/* This software, and all works of authorship, whether in source or */
+/* object code form as indicated by the copyright notice(s) included */
+/* herein (collectively, the "Work") is made available, and may only be */
+/* used, modified, and distributed under the FreeType Project License, */
+/* LICENSE.TXT. Additionally, subject to the terms and conditions of the */
+/* FreeType Project License, each contributor to the Work hereby grants */
+/* to any individual or legal entity exercising permissions granted by */
+/* the FreeType Project License and this section (hereafter, "You" or */
+/* "Your") a perpetual, worldwide, non-exclusive, no-charge, */
+/* royalty-free, irrevocable (except as stated in this section) patent */
+/* license to make, have made, use, offer to sell, sell, import, and */
+/* otherwise transfer the Work, where such license applies only to those */
+/* patent claims licensable by such contributor that are necessarily */
+/* infringed by their contribution(s) alone or by combination of their */
+/* contribution(s) with the Work to which such contribution(s) was */
+/* submitted. If You institute patent litigation against any entity */
+/* (including a cross-claim or counterclaim in a lawsuit) alleging that */
+/* the Work or a contribution incorporated within the Work constitutes */
+/* direct or contributory patent infringement, then any patent licenses */
+/* granted to You under this License for that Work shall terminate as of */
+/* the date such litigation is filed. */
+/* */
+/* By using, modifying, or distributing the Work you indicate that you */
+/* have read and understood the terms and conditions of the */
+/* FreeType Project License as well as those provided in this section, */
+/* and you accept them fully. */
+/* */
+/***************************************************************************/
+
+
+#ifndef __CF2HINTS_H__
+#define __CF2HINTS_H__
+
+
+FT_BEGIN_HEADER
+
+
+ enum
+ {
+ CF2_MAX_HINTS = 96 /* maximum # of hints */
+ };
+
+
+ /*
+ * A HintMask object stores a bit mask that specifies which hints in the
+ * charstring are active at a given time. Hints in CFF must be declared
+ * at the start, before any drawing operators, with horizontal hints
+ * preceding vertical hints. The HintMask is ordered the same way, with
+ * horizontal hints immediately followed by vertical hints. Clients are
+ * responsible for knowing how many of each type are present.
+ *
+ * The maximum total number of hints is 96, as specified by the CFF
+ * specification.
+ *
+ * A HintMask is built 0 or more times while interpreting a charstring, by
+ * the HintMask operator. There is only one HintMask, but it is built or
+ * rebuilt each time there is a hint substitution (HintMask operator) in
+ * the charstring. A default HintMask with all bits set is built if there
+ * has been no HintMask operator prior to the first drawing operator.
+ *
+ */
+
+ typedef struct CF2_HintMaskRec_
+ {
+ FT_Error* error;
+
+ FT_Bool isValid;
+ FT_Bool isNew;
+
+ size_t bitCount;
+ size_t byteCount;
+
+ FT_Byte mask[( CF2_MAX_HINTS + 7 ) / 8];
+
+ } CF2_HintMaskRec, *CF2_HintMask;
+
+
+ typedef struct CF2_StemHintRec_
+ {
+ FT_Bool used; /* DS positions are valid */
+
+ CF2_Fixed min; /* original character space value */
+ CF2_Fixed max;
+
+ CF2_Fixed minDS; /* DS position after first use */
+ CF2_Fixed maxDS;
+
+ } CF2_StemHintRec, *CF2_StemHint;
+
+
+ /*
+ * A HintMap object stores a piecewise linear function for mapping
+ * y-coordinates from character space to device space, providing
+ * appropriate pixel alignment to stem edges.
+ *
+ * The map is implemented as an array of `CF2_Hint' elements, each
+ * representing an edge. When edges are paired, as from stem hints, the
+ * bottom edge must immediately precede the top edge in the array.
+ * Element character space AND device space positions must both increase
+ * monotonically in the array. `CF2_Hint' elements are also used as
+ * parameters to `cf2_blues_capture'.
+ *
+ * The `cf2_hintmap_build' method must be called before any drawing
+ * operation (beginning with a Move operator) and at each hint
+ * substitution (HintMask operator).
+ *
+ * The `cf2_hintmap_map' method is called to transform y-coordinates at
+ * each drawing operation (move, line, curve).
+ *
+ */
+
+ /* TODO: make this a CF2_ArrStack and add a deep copy method */
+ enum
+ {
+ CF2_MAX_HINT_EDGES = CF2_MAX_HINTS * 2
+ };
+
+
+ typedef struct CF2_HintMapRec_
+ {
+ CF2_Font font;
+
+ /* initial map based on blue zones */
+ struct CF2_HintMapRec_* initialHintMap;
+
+ /* working storage for 2nd pass adjustHints */
+ CF2_ArrStack hintMoves;
+
+ FT_Bool isValid;
+ FT_Bool hinted;
+
+ CF2_Fixed scale;
+ CF2_UInt count;
+
+ /* start search from this index */
+ CF2_UInt lastIndex;
+
+ CF2_HintRec edge[CF2_MAX_HINT_EDGES]; /* 192 */
+
+ } CF2_HintMapRec, *CF2_HintMap;
+
+
+ FT_LOCAL( FT_Bool )
+ cf2_hint_isValid( const CF2_Hint hint );
+ FT_LOCAL( FT_Bool )
+ cf2_hint_isTop( const CF2_Hint hint );
+ FT_LOCAL( FT_Bool )
+ cf2_hint_isBottom( const CF2_Hint hint );
+ FT_LOCAL( void )
+ cf2_hint_lock( CF2_Hint hint );
+
+
+ FT_LOCAL( void )
+ cf2_hintmap_init( CF2_HintMap hintmap,
+ CF2_Font font,
+ CF2_HintMap initialMap,
+ CF2_ArrStack hintMoves,
+ CF2_Fixed scale );
+ FT_LOCAL( void )
+ cf2_hintmap_build( CF2_HintMap hintmap,
+ CF2_ArrStack hStemHintArray,
+ CF2_ArrStack vStemHintArray,
+ CF2_HintMask hintMask,
+ CF2_Fixed hintOrigin,
+ FT_Bool initialMap );
+
+
+ /*
+ * GlyphPath is a wrapper for drawing operations that scales the
+ * coordinates according to the render matrix and HintMap. It also tracks
+ * open paths to control ClosePath and to insert MoveTo for broken fonts.
+ *
+ */
+ typedef struct CF2_GlyphPathRec_
+ {
+ /* TODO: gather some of these into a hinting context */
+
+ CF2_Font font; /* font instance */
+ CF2_OutlineCallbacks callbacks; /* outline consumer */
+
+
+ CF2_HintMapRec hintMap; /* current hint map */
+ CF2_HintMapRec firstHintMap; /* saved copy */
+ CF2_HintMapRec initialHintMap; /* based on all captured hints */
+
+ CF2_ArrStackRec hintMoves; /* list of hint moves for 2nd pass */
+
+ CF2_Fixed scaleX; /* matrix a */
+ CF2_Fixed scaleC; /* matrix c */
+ CF2_Fixed scaleY; /* matrix d */
+
+ FT_Vector fractionalTranslation; /* including deviceXScale */
+#if 0
+ CF2_Fixed hShift; /* character space horizontal shift */
+ /* (for fauxing) */
+#endif
+
+ FT_Bool pathIsOpen; /* true after MoveTo */
+ FT_Bool darken; /* true if stem darkening */
+ FT_Bool moveIsPending; /* true between MoveTo and offset MoveTo */
+
+ /* references used to call `cf2_hintmap_build', if necessary */
+ CF2_ArrStack hStemHintArray;
+ CF2_ArrStack vStemHintArray;
+ CF2_HintMask hintMask; /* ptr to the current mask */
+ CF2_Fixed hintOriginY; /* copy of current origin */
+ const CF2_BluesRec* blues;
+
+ CF2_Fixed xOffset; /* character space offsets */
+ CF2_Fixed yOffset;
+
+ /* character space miter limit threshold */
+ CF2_Fixed miterLimit;
+ /* vertical/horzizontal snap distance in character space */
+ CF2_Fixed snapThreshold;
+
+ FT_Vector offsetStart0; /* first and second points of first */
+ FT_Vector offsetStart1; /* element with offset applied */
+
+ /* current point, character space, before offset */
+ FT_Vector currentCS;
+ /* current point, device space */
+ FT_Vector currentDS;
+ FT_Vector start; /* start point of subpath */
+
+ /* the following members constitute the `queue' of one element */
+ FT_Bool elemIsQueued;
+ CF2_Int prevElemOp;
+
+ FT_Vector prevElemP0;
+ FT_Vector prevElemP1;
+ FT_Vector prevElemP2;
+ FT_Vector prevElemP3;
+
+ } CF2_GlyphPathRec, *CF2_GlyphPath;
+
+
+ FT_LOCAL( void )
+ cf2_glyphpath_init( CF2_GlyphPath glyphpath,
+ CF2_Font font,
+ CF2_OutlineCallbacks callbacks,
+ CF2_Fixed scaleY,
+ /* CF2_Fixed hShift, */
+ CF2_ArrStack hStemHintArray,
+ CF2_ArrStack vStemHintArray,
+ CF2_HintMask hintMask,
+ CF2_Fixed hintOrigin,
+ const CF2_Blues blues,
+ const FT_Vector* fractionalTranslation );
+ FT_LOCAL( void )
+ cf2_glyphpath_finalize( CF2_GlyphPath glyphpath );
+
+ FT_LOCAL( void )
+ cf2_glyphpath_moveTo( CF2_GlyphPath glyphpath,
+ CF2_Fixed x,
+ CF2_Fixed y );
+ FT_LOCAL( void )
+ cf2_glyphpath_lineTo( CF2_GlyphPath glyphpath,
+ CF2_Fixed x,
+ CF2_Fixed y );
+ FT_LOCAL( void )
+ cf2_glyphpath_curveTo( CF2_GlyphPath glyphpath,
+ CF2_Fixed x1,
+ CF2_Fixed y1,
+ CF2_Fixed x2,
+ CF2_Fixed y2,
+ CF2_Fixed x3,
+ CF2_Fixed y3 );
+ FT_LOCAL( void )
+ cf2_glyphpath_closeOpenPath( CF2_GlyphPath glyphpath );
+
+
+FT_END_HEADER
+
+
+#endif /* __CF2HINTS_H__ */
+
+
+/* END */
diff --git a/src/cff/cf2intrp.c b/src/cff/cf2intrp.c
new file mode 100644
index 0000000..5b73e60
--- /dev/null
+++ b/src/cff/cf2intrp.c
@@ -0,0 +1,1538 @@
+/***************************************************************************/
+/* */
+/* cf2intrp.c */
+/* */
+/* Adobe's CFF Interpreter (body). */
+/* */
+/* Copyright 2007-2013 Adobe Systems Incorporated. */
+/* */
+/* This software, and all works of authorship, whether in source or */
+/* object code form as indicated by the copyright notice(s) included */
+/* herein (collectively, the "Work") is made available, and may only be */
+/* used, modified, and distributed under the FreeType Project License, */
+/* LICENSE.TXT. Additionally, subject to the terms and conditions of the */
+/* FreeType Project License, each contributor to the Work hereby grants */
+/* to any individual or legal entity exercising permissions granted by */
+/* the FreeType Project License and this section (hereafter, "You" or */
+/* "Your") a perpetual, worldwide, non-exclusive, no-charge, */
+/* royalty-free, irrevocable (except as stated in this section) patent */
+/* license to make, have made, use, offer to sell, sell, import, and */
+/* otherwise transfer the Work, where such license applies only to those */
+/* patent claims licensable by such contributor that are necessarily */
+/* infringed by their contribution(s) alone or by combination of their */
+/* contribution(s) with the Work to which such contribution(s) was */
+/* submitted. If You institute patent litigation against any entity */
+/* (including a cross-claim or counterclaim in a lawsuit) alleging that */
+/* the Work or a contribution incorporated within the Work constitutes */
+/* direct or contributory patent infringement, then any patent licenses */
+/* granted to You under this License for that Work shall terminate as of */
+/* the date such litigation is filed. */
+/* */
+/* By using, modifying, or distributing the Work you indicate that you */
+/* have read and understood the terms and conditions of the */
+/* FreeType Project License as well as those provided in this section, */
+/* and you accept them fully. */
+/* */
+/***************************************************************************/
+
+
+#include "cf2ft.h"
+#include FT_INTERNAL_DEBUG_H
+
+#include "cf2glue.h"
+#include "cf2font.h"
+#include "cf2stack.h"
+#include "cf2hints.h"
+
+#include "cf2error.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_cf2interp
+
+
+ /* some operators are not implemented yet */
+#define CF2_FIXME FT_TRACE4(( "cf2_interpT2CharString:" \
+ " operator not implemented yet\n" ))
+
+
+
+ FT_LOCAL_DEF( void )
+ cf2_hintmask_init( CF2_HintMask hintmask,
+ FT_Error* error )
+ {
+ FT_ZERO( hintmask );
+
+ hintmask->error = error;
+ }
+
+
+ FT_LOCAL_DEF( FT_Bool )
+ cf2_hintmask_isValid( const CF2_HintMask hintmask )
+ {
+ return hintmask->isValid;
+ }
+
+
+ FT_LOCAL_DEF( FT_Bool )
+ cf2_hintmask_isNew( const CF2_HintMask hintmask )
+ {
+ return hintmask->isNew;
+ }
+
+
+ FT_LOCAL_DEF( void )
+ cf2_hintmask_setNew( CF2_HintMask hintmask,
+ FT_Bool val )
+ {
+ hintmask->isNew = val;
+ }
+
+
+ /* clients call `getMaskPtr' in order to iterate */
+ /* through hint mask */
+
+ FT_LOCAL_DEF( FT_Byte* )
+ cf2_hintmask_getMaskPtr( CF2_HintMask hintmask )
+ {
+ return hintmask->mask;
+ }
+
+
+ static size_t
+ cf2_hintmask_setCounts( CF2_HintMask hintmask,
+ size_t bitCount )
+ {
+ if ( bitCount > CF2_MAX_HINTS )
+ {
+ /* total of h and v stems must be <= 96 */
+ CF2_SET_ERROR( hintmask->error, Invalid_Glyph_Format );
+ return 0;
+ }
+
+ hintmask->bitCount = bitCount;
+ hintmask->byteCount = ( hintmask->bitCount + 7 ) / 8;
+
+ hintmask->isValid = TRUE;
+ hintmask->isNew = TRUE;
+
+ return bitCount;
+ }
+
+
+ /* consume the hintmask bytes from the charstring, advancing the src */
+ /* pointer */
+ static void
+ cf2_hintmask_read( CF2_HintMask hintmask,
+ CF2_Buffer charstring,
+ size_t bitCount )
+ {
+ size_t i;
+
+#ifndef CF2_NDEBUG
+ /* these are the bits in the final mask byte that should be zero */
+ /* Note: this variable is only used in an assert expression below */
+ /* and then only if CF2_NDEBUG is not defined */
+ CF2_UInt mask = ( 1 << ( -(CF2_Int)bitCount & 7 ) ) - 1;
+#endif
+
+
+ /* initialize counts and isValid */
+ if ( cf2_hintmask_setCounts( hintmask, bitCount ) == 0 )
+ return;
+
+ FT_ASSERT( hintmask->byteCount > 0 );
+
+ FT_TRACE4(( " (maskbytes:" ));
+
+ /* set mask and advance interpreter's charstring pointer */
+ for ( i = 0; i < hintmask->byteCount; i++ )
+ {
+ hintmask->mask[i] = (FT_Byte)cf2_buf_readByte( charstring );
+ FT_TRACE4(( " 0x%02X", hintmask->mask[i] ));
+ }
+
+ FT_TRACE4(( ")\n" ));
+
+ /* assert any unused bits in last byte are zero unless there's a prior */
+ /* error */
+ /* bitCount -> mask, 0 -> 0, 1 -> 7f, 2 -> 3f, ... 6 -> 3, 7 -> 1 */
+#ifndef CF2_NDEBUG
+ FT_ASSERT( ( hintmask->mask[hintmask->byteCount - 1] & mask ) == 0 ||
+ *hintmask->error );
+#endif
+ }
+
+
+ FT_LOCAL_DEF( void )
+ cf2_hintmask_setAll( CF2_HintMask hintmask,
+ size_t bitCount )
+ {
+ size_t i;
+ CF2_UInt mask = ( 1 << ( -(CF2_Int)bitCount & 7 ) ) - 1;
+
+
+ /* initialize counts and isValid */
+ if ( cf2_hintmask_setCounts( hintmask, bitCount ) == 0 )
+ return;
+
+ FT_ASSERT( hintmask->byteCount > 0 );
+ FT_ASSERT( hintmask->byteCount <
+ sizeof ( hintmask->mask ) / sizeof ( hintmask->mask[0] ) );
+
+ /* set mask to all ones */
+ for ( i = 0; i < hintmask->byteCount; i++ )
+ hintmask->mask[i] = 0xFF;
+
+ /* clear unused bits */
+ /* bitCount -> mask, 0 -> 0, 1 -> 7f, 2 -> 3f, ... 6 -> 3, 7 -> 1 */
+ hintmask->mask[hintmask->byteCount - 1] &= ~mask;
+ }
+
+
+ /* Type2 charstring opcodes */
+ enum
+ {
+ cf2_cmdRESERVED_0, /* 0 */
+ cf2_cmdHSTEM, /* 1 */
+ cf2_cmdRESERVED_2, /* 2 */
+ cf2_cmdVSTEM, /* 3 */
+ cf2_cmdVMOVETO, /* 4 */
+ cf2_cmdRLINETO, /* 5 */
+ cf2_cmdHLINETO, /* 6 */
+ cf2_cmdVLINETO, /* 7 */
+ cf2_cmdRRCURVETO, /* 8 */
+ cf2_cmdRESERVED_9, /* 9 */
+ cf2_cmdCALLSUBR, /* 10 */
+ cf2_cmdRETURN, /* 11 */
+ cf2_cmdESC, /* 12 */
+ cf2_cmdRESERVED_13, /* 13 */
+ cf2_cmdENDCHAR, /* 14 */
+ cf2_cmdRESERVED_15, /* 15 */
+ cf2_cmdRESERVED_16, /* 16 */
+ cf2_cmdRESERVED_17, /* 17 */
+ cf2_cmdHSTEMHM, /* 18 */
+ cf2_cmdHINTMASK, /* 19 */
+ cf2_cmdCNTRMASK, /* 20 */
+ cf2_cmdRMOVETO, /* 21 */
+ cf2_cmdHMOVETO, /* 22 */
+ cf2_cmdVSTEMHM, /* 23 */
+ cf2_cmdRCURVELINE, /* 24 */
+ cf2_cmdRLINECURVE, /* 25 */
+ cf2_cmdVVCURVETO, /* 26 */
+ cf2_cmdHHCURVETO, /* 27 */
+ cf2_cmdEXTENDEDNMBR, /* 28 */
+ cf2_cmdCALLGSUBR, /* 29 */
+ cf2_cmdVHCURVETO, /* 30 */
+ cf2_cmdHVCURVETO /* 31 */
+ };
+
+ enum
+ {
+ cf2_escDOTSECTION, /* 0 */
+ cf2_escRESERVED_1, /* 1 */
+ cf2_escRESERVED_2, /* 2 */
+ cf2_escAND, /* 3 */
+ cf2_escOR, /* 4 */
+ cf2_escNOT, /* 5 */
+ cf2_escRESERVED_6, /* 6 */
+ cf2_escRESERVED_7, /* 7 */
+ cf2_escRESERVED_8, /* 8 */
+ cf2_escABS, /* 9 */
+ cf2_escADD, /* 10 like otherADD */
+ cf2_escSUB, /* 11 like otherSUB */
+ cf2_escDIV, /* 12 */
+ cf2_escRESERVED_13, /* 13 */
+ cf2_escNEG, /* 14 */
+ cf2_escEQ, /* 15 */
+ cf2_escRESERVED_16, /* 16 */
+ cf2_escRESERVED_17, /* 17 */
+ cf2_escDROP, /* 18 */
+ cf2_escRESERVED_19, /* 19 */
+ cf2_escPUT, /* 20 like otherPUT */
+ cf2_escGET, /* 21 like otherGET */
+ cf2_escIFELSE, /* 22 like otherIFELSE */
+ cf2_escRANDOM, /* 23 like otherRANDOM */
+ cf2_escMUL, /* 24 like otherMUL */
+ cf2_escRESERVED_25, /* 25 */
+ cf2_escSQRT, /* 26 */
+ cf2_escDUP, /* 27 like otherDUP */
+ cf2_escEXCH, /* 28 like otherEXCH */
+ cf2_escINDEX, /* 29 */
+ cf2_escROLL, /* 30 */
+ cf2_escRESERVED_31, /* 31 */
+ cf2_escRESERVED_32, /* 32 */
+ cf2_escRESERVED_33, /* 33 */
+ cf2_escHFLEX, /* 34 */
+ cf2_escFLEX, /* 35 */
+ cf2_escHFLEX1, /* 36 */
+ cf2_escFLEX1 /* 37 */
+ };
+
+
+ /* `stemHintArray' does not change once we start drawing the outline. */
+ static void
+ cf2_doStems( const CF2_Font font,
+ CF2_Stack opStack,
+ CF2_ArrStack stemHintArray,
+ CF2_Fixed* width,
+ FT_Bool* haveWidth,
+ CF2_Fixed hintOffset )
+ {
+ CF2_UInt i;
+ CF2_UInt count = cf2_stack_count( opStack );
+ FT_Bool hasWidthArg = count & 1;
+
+ /* variable accumulates delta values from operand stack */
+ CF2_Fixed position = hintOffset;
+
+ if ( hasWidthArg && ! *haveWidth )
+ *width = cf2_stack_getReal( opStack, 0 ) +
+ cf2_getNominalWidthX( font->decoder );
+
+ if ( font->decoder->width_only )
+ goto exit;
+
+ for ( i = hasWidthArg ? 1 : 0; i < count; i += 2 )
+ {
+ /* construct a CF2_StemHint and push it onto the list */
+ CF2_StemHintRec stemhint;
+
+
+ stemhint.min =
+ position += cf2_stack_getReal( opStack, i );
+ stemhint.max =
+ position += cf2_stack_getReal( opStack, i + 1 );
+
+ stemhint.used = FALSE;
+ stemhint.maxDS =
+ stemhint.minDS = 0;
+
+ cf2_arrstack_push( stemHintArray, &stemhint ); /* defer error check */
+ }
+
+ cf2_stack_clear( opStack );
+
+ exit:
+ /* cf2_doStems must define a width (may be default) */
+ *haveWidth = TRUE;
+ }
+
+
+ static void
+ cf2_doFlex( CF2_Stack opStack,
+ CF2_Fixed* curX,
+ CF2_Fixed* curY,
+ CF2_GlyphPath glyphPath,
+ const FT_Bool* readFromStack,
+ FT_Bool doConditionalLastRead )
+ {
+ CF2_Fixed vals[14];
+ CF2_UInt index;
+ FT_Bool isHFlex;
+ CF2_Int top, i, j;
+
+
+ vals[0] = *curX;
+ vals[1] = *curY;
+ index = 0;
+ isHFlex = readFromStack[9] == FALSE;
+ top = isHFlex ? 9 : 10;
+
+ for ( i = 0; i < top; i++ )
+ {
+ vals[i + 2] = vals[i];
+ if ( readFromStack[i] )
+ vals[i + 2] += cf2_stack_getReal( opStack, index++ );
+ }
+
+ if ( isHFlex )
+ vals[9 + 2] = *curY;
+
+ if ( doConditionalLastRead )
+ {
+ FT_Bool lastIsX = cf2_fixedAbs( vals[10] - *curX ) >
+ cf2_fixedAbs( vals[11] - *curY );
+ CF2_Fixed lastVal = cf2_stack_getReal( opStack, index );
+
+
+ if ( lastIsX )
+ {
+ vals[12] = vals[10] + lastVal;
+ vals[13] = *curY;
+ }
+ else
+ {
+ vals[12] = *curX;
+ vals[13] = vals[11] + lastVal;
+ }
+ }
+ else
+ {
+ if ( readFromStack[10] )
+ vals[12] = vals[10] + cf2_stack_getReal( opStack, index++ );
+ else
+ vals[12] = *curX;
+
+ if ( readFromStack[11] )
+ vals[13] = vals[11] + cf2_stack_getReal( opStack, index );
+ else
+ vals[13] = *curY;
+ }
+
+ for ( j = 0; j < 2; j++ )
+ cf2_glyphpath_curveTo( glyphPath, vals[j * 6 + 2],
+ vals[j * 6 + 3],
+ vals[j * 6 + 4],
+ vals[j * 6 + 5],
+ vals[j * 6 + 6],
+ vals[j * 6 + 7] );
+
+ cf2_stack_clear( opStack );
+
+ *curX = vals[12];
+ *curY = vals[13];
+ }
+
+
+ /*
+ * `error' is a shared error code used by many objects in this
+ * routine. Before the code continues from an error, it must check and
+ * record the error in `*error'. The idea is that this shared
+ * error code will record the first error encountered. If testing
+ * for an error anyway, the cost of `goto exit' is small, so we do it,
+ * even if continuing would be safe. In this case, `lastError' is
+ * set, so the testing and storing can be done in one place, at `exit'.
+ *
+ * Continuing after an error is intended for objects which do their own
+ * testing of `*error', e.g., array stack functions. This allows us to
+ * avoid an extra test after the call.
+ *
+ * Unimplemented opcodes are ignored.
+ *
+ */
+ FT_LOCAL_DEF( void )
+ cf2_interpT2CharString( CF2_Font font,
+ CF2_Buffer buf,
+ CF2_OutlineCallbacks callbacks,
+ const FT_Vector* translation,
+ FT_Bool doingSeac,
+ CF2_Fixed curX,
+ CF2_Fixed curY,
+ CF2_Fixed* width )
+ {
+ /* lastError is used for errors that are immediately tested */
+ FT_Error lastError = FT_Err_Ok;
+
+ /* pointer to parsed font object */
+ CFF_Decoder* decoder = font->decoder;
+
+ FT_Error* error = &font->error;
+ FT_Memory memory = font->memory;
+
+ CF2_Fixed scaleY = font->innerTransform.d;
+ CF2_Fixed nominalWidthX = cf2_getNominalWidthX( decoder );
+
+ /* save this for hinting seac accents */
+ CF2_Fixed hintOriginY = curY;
+
+ CF2_Stack opStack = NULL;
+ FT_Byte op1; /* first opcode byte */
+
+ /* instruction limit; 20,000,000 matches Avalon */
+ FT_UInt32 instructionLimit = 20000000UL;
+
+ CF2_ArrStackRec subrStack;
+
+ FT_Bool haveWidth;
+ CF2_Buffer charstring = NULL;
+
+ CF2_Int charstringIndex = -1; /* initialize to empty */
+
+ /* TODO: placeholders for hint structures */
+
+ /* objects used for hinting */
+ CF2_ArrStackRec hStemHintArray;
+ CF2_ArrStackRec vStemHintArray;
+
+ CF2_HintMaskRec hintMask;
+ CF2_GlyphPathRec glyphPath;
+
+
+ /* initialize the remaining objects */
+ cf2_arrstack_init( &subrStack,
+ memory,
+ error,
+ sizeof ( CF2_BufferRec ) );
+ cf2_arrstack_init( &hStemHintArray,
+ memory,
+ error,
+ sizeof ( CF2_StemHintRec ) );
+ cf2_arrstack_init( &vStemHintArray,
+ memory,
+ error,
+ sizeof ( CF2_StemHintRec ) );
+
+ /* initialize CF2_StemHint arrays */
+ cf2_hintmask_init( &hintMask, error );
+
+ /* initialize path map to manage drawing operations */
+
+ /* Note: last 4 params are used to handle `MoveToPermissive', which */
+ /* may need to call `hintMap.Build' */
+ /* TODO: MoveToPermissive is gone; are these still needed? */
+ cf2_glyphpath_init( &glyphPath,
+ font,
+ callbacks,
+ scaleY,
+ /* hShift, */
+ &hStemHintArray,
+ &vStemHintArray,
+ &hintMask,
+ hintOriginY,
+ &font->blues,
+ translation );
+
+ /*
+ * Initialize state for width parsing. From the CFF Spec:
+ *
+ * The first stack-clearing operator, which must be one of hstem,
+ * hstemhm, vstem, vstemhm, cntrmask, hintmask, hmoveto, vmoveto,
+ * rmoveto, or endchar, takes an additional argument - the width (as
+ * described earlier), which may be expressed as zero or one numeric
+ * argument.
+ *
+ * What we implement here uses the first validly specified width, but
+ * does not detect errors for specifying more than one width.
+ *
+ * If one of the above operators occurs without explicitly specifying
+ * a width, we assume the default width.
+ *
+ */
+ haveWidth = FALSE;
+ *width = cf2_getDefaultWidthX( decoder );
+
+ /*
+ * Note: at this point, all pointers to resources must be NULL
+ * and all local objects must be initialized.
+ * There must be no branches to exit: above this point.
+ *
+ */
+
+ /* allocate an operand stack */
+ opStack = cf2_stack_init( memory, error );
+ if ( !opStack )
+ {
+ lastError = FT_THROW( Out_Of_Memory );
+ goto exit;
+ }
+
+ /* initialize subroutine stack by placing top level charstring as */
+ /* first element (max depth plus one for the charstring) */
+ /* Note: Caller owns and must finalize the first charstring. */
+ /* Our copy of it does not change that requirement. */
+ cf2_arrstack_setCount( &subrStack, CF2_MAX_SUBR + 1 );
+
+ charstring = (CF2_Buffer)cf2_arrstack_getBuffer( &subrStack );
+ *charstring = *buf; /* structure copy */
+
+ charstringIndex = 0; /* entry is valid now */
+
+ /* catch errors so far */
+ if ( *error )
+ goto exit;
+
+ /* main interpreter loop */
+ while ( 1 )
+ {
+ if ( cf2_buf_isEnd( charstring ) )
+ {
+ /* If we've reached the end of the charstring, simulate a */
+ /* cf2_cmdRETURN or cf2_cmdENDCHAR. */
+ if ( charstringIndex )
+ op1 = cf2_cmdRETURN; /* end of buffer for subroutine */
+ else
+ op1 = cf2_cmdENDCHAR; /* end of buffer for top level charstring */
+ }
+ else
+ op1 = (FT_Byte)cf2_buf_readByte( charstring );
+
+ /* check for errors once per loop */
+ if ( *error )
+ goto exit;
+
+ instructionLimit--;
+ if ( instructionLimit == 0 )
+ {
+ lastError = FT_THROW( Invalid_Glyph_Format );
+ goto exit;
+ }
+
+ switch( op1 )
+ {
+ case cf2_cmdRESERVED_0:
+ case cf2_cmdRESERVED_2:
+ case cf2_cmdRESERVED_9:
+ case cf2_cmdRESERVED_13:
+ case cf2_cmdRESERVED_15:
+ case cf2_cmdRESERVED_16:
+ case cf2_cmdRESERVED_17:
+ /* we may get here if we have a prior error */
+ FT_TRACE4(( " unknown op (%d)\n", op1 ));
+ break;
+
+ case cf2_cmdHSTEMHM:
+ case cf2_cmdHSTEM:
+ FT_TRACE4(( op1 == cf2_cmdHSTEMHM ? " hstemhm\n" : " hstem\n" ));
+
+ /* never add hints after the mask is computed */
+ if ( cf2_hintmask_isValid( &hintMask ) )
+ FT_TRACE4(( "cf2_interpT2CharString:"
+ " invalid horizontal hint mask\n" ));
+
+ cf2_doStems( font,
+ opStack,
+ &hStemHintArray,
+ width,
+ &haveWidth,
+ 0 );
+
+ if ( font->decoder->width_only )
+ goto exit;
+
+ break;
+
+ case cf2_cmdVSTEMHM:
+ case cf2_cmdVSTEM:
+ FT_TRACE4(( op1 == cf2_cmdVSTEMHM ? " vstemhm\n" : " vstem\n" ));
+
+ /* never add hints after the mask is computed */
+ if ( cf2_hintmask_isValid( &hintMask ) )
+ FT_TRACE4(( "cf2_interpT2CharString:"
+ " invalid vertical hint mask\n" ));
+
+ cf2_doStems( font,
+ opStack,
+ &vStemHintArray,
+ width,
+ &haveWidth,
+ 0 );
+
+ if ( font->decoder->width_only )
+ goto exit;
+
+ break;
+
+ case cf2_cmdVMOVETO:
+ FT_TRACE4(( " vmoveto\n" ));
+
+ if ( cf2_stack_count( opStack ) > 1 && !haveWidth )
+ *width = cf2_stack_getReal( opStack, 0 ) + nominalWidthX;
+
+ /* width is defined or default after this */
+ haveWidth = TRUE;
+
+ if ( font->decoder->width_only )
+ goto exit;
+
+ curY += cf2_stack_popFixed( opStack );
+
+ cf2_glyphpath_moveTo( &glyphPath, curX, curY );
+
+ break;
+
+ case cf2_cmdRLINETO:
+ {
+ CF2_UInt index;
+ CF2_UInt count = cf2_stack_count( opStack );
+
+
+ FT_TRACE4(( " rlineto\n" ));
+
+ for ( index = 0; index < count; index += 2 )
+ {
+ curX += cf2_stack_getReal( opStack, index + 0 );
+ curY += cf2_stack_getReal( opStack, index + 1 );
+
+ cf2_glyphpath_lineTo( &glyphPath, curX, curY );
+ }
+
+ cf2_stack_clear( opStack );
+ }
+ continue; /* no need to clear stack again */
+
+ case cf2_cmdHLINETO:
+ case cf2_cmdVLINETO:
+ {
+ CF2_UInt index;
+ CF2_UInt count = cf2_stack_count( opStack );
+
+ FT_Bool isX = op1 == cf2_cmdHLINETO;
+
+
+ FT_TRACE4(( isX ? " hlineto\n" : " vlineto\n" ));
+
+ for ( index = 0; index < count; index++ )
+ {
+ CF2_Fixed v = cf2_stack_getReal( opStack, index );
+
+
+ if ( isX )
+ curX += v;
+ else
+ curY += v;
+
+ isX = !isX;
+
+ cf2_glyphpath_lineTo( &glyphPath, curX, curY );
+ }
+
+ cf2_stack_clear( opStack );
+ }
+ continue;
+
+ case cf2_cmdRCURVELINE:
+ case cf2_cmdRRCURVETO:
+ {
+ CF2_UInt count = cf2_stack_count( opStack );
+ CF2_UInt index = 0;
+
+
+ FT_TRACE4(( op1 == cf2_cmdRCURVELINE ? " rcurveline\n"
+ : " rrcurveto\n" ));
+
+ while ( index + 6 <= count )
+ {
+ CF2_Fixed x1 = cf2_stack_getReal( opStack, index + 0 ) + curX;
+ CF2_Fixed y1 = cf2_stack_getReal( opStack, index + 1 ) + curY;
+ CF2_Fixed x2 = cf2_stack_getReal( opStack, index + 2 ) + x1;
+ CF2_Fixed y2 = cf2_stack_getReal( opStack, index + 3 ) + y1;
+ CF2_Fixed x3 = cf2_stack_getReal( opStack, index + 4 ) + x2;
+ CF2_Fixed y3 = cf2_stack_getReal( opStack, index + 5 ) + y2;
+
+
+ cf2_glyphpath_curveTo( &glyphPath, x1, y1, x2, y2, x3, y3 );
+
+ curX = x3;
+ curY = y3;
+ index += 6;
+ }
+
+ if ( op1 == cf2_cmdRCURVELINE )
+ {
+ curX += cf2_stack_getReal( opStack, index + 0 );
+ curY += cf2_stack_getReal( opStack, index + 1 );
+
+ cf2_glyphpath_lineTo( &glyphPath, curX, curY );
+ }
+
+ cf2_stack_clear( opStack );
+ }
+ continue; /* no need to clear stack again */
+
+ case cf2_cmdCALLGSUBR:
+ case cf2_cmdCALLSUBR:
+ {
+ CF2_UInt subrIndex;
+
+
+ FT_TRACE4(( op1 == cf2_cmdCALLGSUBR ? " callgsubr"
+ : " callsubr" ));
+
+ if ( charstringIndex > CF2_MAX_SUBR )
+ {
+ /* max subr plus one for charstring */
+ lastError = FT_THROW( Invalid_Glyph_Format );
+ goto exit; /* overflow of stack */
+ }
+
+ /* push our current CFF charstring region on subrStack */
+ charstring = (CF2_Buffer)
+ cf2_arrstack_getPointer( &subrStack,
+ charstringIndex + 1 );
+
+ /* set up the new CFF region and pointer */
+ subrIndex = cf2_stack_popInt( opStack );
+
+ switch ( op1 )
+ {
+ case cf2_cmdCALLGSUBR:
+ FT_TRACE4(( "(%d)\n", subrIndex + decoder->globals_bias ));
+
+ if ( cf2_initGlobalRegionBuffer( decoder,
+ subrIndex,
+ charstring ) )
+ {
+ lastError = FT_THROW( Invalid_Glyph_Format );
+ goto exit; /* subroutine lookup or stream error */
+ }
+ break;
+
+ default:
+ /* cf2_cmdCALLSUBR */
+ FT_TRACE4(( "(%d)\n", subrIndex + decoder->locals_bias ));
+
+ if ( cf2_initLocalRegionBuffer( decoder,
+ subrIndex,
+ charstring ) )
+ {
+ lastError = FT_THROW( Invalid_Glyph_Format );
+ goto exit; /* subroutine lookup or stream error */
+ }
+ }
+
+ charstringIndex += 1; /* entry is valid now */
+ }
+ continue; /* do not clear the stack */
+
+ case cf2_cmdRETURN:
+ FT_TRACE4(( " return\n" ));
+
+ if ( charstringIndex < 1 )
+ {
+ /* Note: cannot return from top charstring */
+ lastError = FT_THROW( Invalid_Glyph_Format );
+ goto exit; /* underflow of stack */
+ }
+
+ /* restore position in previous charstring */
+ charstring = (CF2_Buffer)
+ cf2_arrstack_getPointer( &subrStack,
+ --charstringIndex );
+ continue; /* do not clear the stack */
+
+ case cf2_cmdESC:
+ {
+ FT_Byte op2 = (FT_Byte)cf2_buf_readByte( charstring );
+
+
+ switch ( op2 )
+ {
+ case cf2_escDOTSECTION:
+ /* something about `flip type of locking' -- ignore it */
+ FT_TRACE4(( " dotsection\n" ));
+
+ break;
+
+ /* TODO: should these operators be supported? */
+ case cf2_escAND: /* in spec */
+ FT_TRACE4(( " and\n" ));
+
+ CF2_FIXME;
+ break;
+
+ case cf2_escOR: /* in spec */
+ FT_TRACE4(( " or\n" ));
+
+ CF2_FIXME;
+ break;
+
+ case cf2_escNOT: /* in spec */
+ FT_TRACE4(( " not\n" ));
+
+ CF2_FIXME;
+ break;
+
+ case cf2_escABS: /* in spec */
+ FT_TRACE4(( " abs\n" ));
+
+ CF2_FIXME;
+ break;
+
+ case cf2_escADD: /* in spec */
+ FT_TRACE4(( " add\n" ));
+
+ CF2_FIXME;
+ break;
+
+ case cf2_escSUB: /* in spec */
+ FT_TRACE4(( " sub\n" ));
+
+ CF2_FIXME;
+ break;
+
+ case cf2_escDIV: /* in spec */
+ FT_TRACE4(( " div\n" ));
+
+ CF2_FIXME;
+ break;
+
+ case cf2_escNEG: /* in spec */
+ FT_TRACE4(( " neg\n" ));
+
+ CF2_FIXME;
+ break;
+
+ case cf2_escEQ: /* in spec */
+ FT_TRACE4(( " eq\n" ));
+
+ CF2_FIXME;
+ break;
+
+ case cf2_escDROP: /* in spec */
+ FT_TRACE4(( " drop\n" ));
+
+ CF2_FIXME;
+ break;
+
+ case cf2_escPUT: /* in spec */
+ FT_TRACE4(( " put\n" ));
+
+ CF2_FIXME;
+ break;
+
+ case cf2_escGET: /* in spec */
+ FT_TRACE4(( " get\n" ));
+
+ CF2_FIXME;
+ break;
+
+ case cf2_escIFELSE: /* in spec */
+ FT_TRACE4(( " ifelse\n" ));
+
+ CF2_FIXME;
+ break;
+
+ case cf2_escRANDOM: /* in spec */
+ FT_TRACE4(( " random\n" ));
+
+ CF2_FIXME;
+ break;
+
+ case cf2_escMUL: /* in spec */
+ FT_TRACE4(( " mul\n" ));
+
+ CF2_FIXME;
+ break;
+
+ case cf2_escSQRT: /* in spec */
+ FT_TRACE4(( " sqrt\n" ));
+
+ CF2_FIXME;
+ break;
+
+ case cf2_escDUP: /* in spec */
+ FT_TRACE4(( " dup\n" ));
+
+ CF2_FIXME;
+ break;
+
+ case cf2_escEXCH: /* in spec */
+ FT_TRACE4(( " exch\n" ));
+
+ CF2_FIXME;
+ break;
+
+ case cf2_escINDEX: /* in spec */
+ FT_TRACE4(( " index\n" ));
+
+ CF2_FIXME;
+ break;
+
+ case cf2_escROLL: /* in spec */
+ FT_TRACE4(( " roll\n" ));
+
+ CF2_FIXME;
+ break;
+
+ case cf2_escHFLEX:
+ {
+ static const FT_Bool readFromStack[12] =
+ {
+ TRUE /* dx1 */, FALSE /* dy1 */,
+ TRUE /* dx2 */, TRUE /* dy2 */,
+ TRUE /* dx3 */, FALSE /* dy3 */,
+ TRUE /* dx4 */, FALSE /* dy4 */,
+ TRUE /* dx5 */, FALSE /* dy5 */,
+ TRUE /* dx6 */, FALSE /* dy6 */
+ };
+
+
+ FT_TRACE4(( " hflex\n" ));
+
+ cf2_doFlex( opStack,
+ &curX,
+ &curY,
+ &glyphPath,
+ readFromStack,
+ FALSE /* doConditionalLastRead */ );
+ }
+ continue;
+
+ case cf2_escFLEX:
+ {
+ static const FT_Bool readFromStack[12] =
+ {
+ TRUE /* dx1 */, TRUE /* dy1 */,
+ TRUE /* dx2 */, TRUE /* dy2 */,
+ TRUE /* dx3 */, TRUE /* dy3 */,
+ TRUE /* dx4 */, TRUE /* dy4 */,
+ TRUE /* dx5 */, TRUE /* dy5 */,
+ TRUE /* dx6 */, TRUE /* dy6 */
+ };
+
+
+ FT_TRACE4(( " flex\n" ));
+
+ cf2_doFlex( opStack,
+ &curX,
+ &curY,
+ &glyphPath,
+ readFromStack,
+ FALSE /* doConditionalLastRead */ );
+ }
+ break; /* TODO: why is this not a continue? */
+
+ case cf2_escHFLEX1:
+ {
+ static const FT_Bool readFromStack[12] =
+ {
+ TRUE /* dx1 */, TRUE /* dy1 */,
+ TRUE /* dx2 */, TRUE /* dy2 */,
+ TRUE /* dx3 */, FALSE /* dy3 */,
+ TRUE /* dx4 */, FALSE /* dy4 */,
+ TRUE /* dx5 */, TRUE /* dy5 */,
+ TRUE /* dx6 */, FALSE /* dy6 */
+ };
+
+
+ FT_TRACE4(( " hflex1\n" ));
+
+ cf2_doFlex( opStack,
+ &curX,
+ &curY,
+ &glyphPath,
+ readFromStack,
+ FALSE /* doConditionalLastRead */ );
+ }
+ continue;
+
+ case cf2_escFLEX1:
+ {
+ static const FT_Bool readFromStack[12] =
+ {
+ TRUE /* dx1 */, TRUE /* dy1 */,
+ TRUE /* dx2 */, TRUE /* dy2 */,
+ TRUE /* dx3 */, TRUE /* dy3 */,
+ TRUE /* dx4 */, TRUE /* dy4 */,
+ TRUE /* dx5 */, TRUE /* dy5 */,
+ FALSE /* dx6 */, FALSE /* dy6 */
+ };
+
+
+ FT_TRACE4(( " flex1\n" ));
+
+ cf2_doFlex( opStack,
+ &curX,
+ &curY,
+ &glyphPath,
+ readFromStack,
+ TRUE /* doConditionalLastRead */ );
+ }
+ continue;
+
+ case cf2_escRESERVED_1:
+ case cf2_escRESERVED_2:
+ case cf2_escRESERVED_6:
+ case cf2_escRESERVED_7:
+ case cf2_escRESERVED_8:
+ case cf2_escRESERVED_13:
+ case cf2_escRESERVED_16:
+ case cf2_escRESERVED_17:
+ case cf2_escRESERVED_19:
+ case cf2_escRESERVED_25:
+ case cf2_escRESERVED_31:
+ case cf2_escRESERVED_32:
+ case cf2_escRESERVED_33:
+ default:
+ FT_TRACE4(( " unknown op (12, %d)\n", op2 ));
+
+ }; /* end of switch statement checking `op2' */
+
+ } /* case cf2_cmdESC */
+ break;
+
+ case cf2_cmdENDCHAR:
+ FT_TRACE4(( " endchar\n" ));
+
+ if ( cf2_stack_count( opStack ) == 1 ||
+ cf2_stack_count( opStack ) == 5 )
+ {
+ if ( !haveWidth )
+ *width = cf2_stack_getReal( opStack, 0 ) + nominalWidthX;
+ }
+
+ /* width is defined or default after this */
+ haveWidth = TRUE;
+
+ if ( font->decoder->width_only )
+ goto exit;
+
+ /* close path if still open */
+ cf2_glyphpath_closeOpenPath( &glyphPath );
+
+ if ( cf2_stack_count( opStack ) > 1 )
+ {
+ /* must be either 4 or 5 -- */
+ /* this is a (deprecated) implied `seac' operator */
+
+ CF2_UInt achar;
+ CF2_UInt bchar;
+ CF2_BufferRec component;
+ CF2_Fixed dummyWidth; /* ignore component width */
+ FT_Error error2;
+
+
+ if ( doingSeac )
+ {
+ lastError = FT_THROW( Invalid_Glyph_Format );
+ goto exit; /* nested seac */
+ }
+
+ achar = cf2_stack_popInt( opStack );
+ bchar = cf2_stack_popInt( opStack );
+
+ curY = cf2_stack_popFixed( opStack );
+ curX = cf2_stack_popFixed( opStack );
+
+ error2 = cf2_getSeacComponent( decoder, achar, &component );
+ if ( error2 )
+ {
+ lastError = error2; /* pass FreeType error through */
+ goto exit;
+ }
+ cf2_interpT2CharString( font,
+ &component,
+ callbacks,
+ translation,
+ TRUE,
+ curX,
+ curY,
+ &dummyWidth );
+ cf2_freeSeacComponent( decoder, &component );
+
+ error2 = cf2_getSeacComponent( decoder, bchar, &component );
+ if ( error2 )
+ {
+ lastError = error2; /* pass FreeType error through */
+ goto exit;
+ }
+ cf2_interpT2CharString( font,
+ &component,
+ callbacks,
+ translation,
+ TRUE,
+ 0,
+ 0,
+ &dummyWidth );
+ cf2_freeSeacComponent( decoder, &component );
+ }
+ goto exit;
+
+ case cf2_cmdCNTRMASK:
+ case cf2_cmdHINTMASK:
+ /* the final \n in the tracing message gets added in */
+ /* `cf2_hintmask_read' (which also traces the mask bytes) */
+ FT_TRACE4(( op1 == cf2_cmdCNTRMASK ? " cntrmask" : " hintmask" ));
+
+ /* if there are arguments on the stack, there this is an */
+ /* implied cf2_cmdVSTEMHM */
+ if ( cf2_stack_count( opStack ) != 0 )
+ {
+ /* never add hints after the mask is computed */
+ if ( cf2_hintmask_isValid( &hintMask ) )
+ FT_TRACE4(( "cf2_interpT2CharString: invalid hint mask\n" ));
+ }
+
+ cf2_doStems( font,
+ opStack,
+ &vStemHintArray,
+ width,
+ &haveWidth,
+ 0 );
+
+ if ( font->decoder->width_only )
+ goto exit;
+
+ if ( op1 == cf2_cmdHINTMASK )
+ {
+ /* consume the hint mask bytes which follow the operator */
+ cf2_hintmask_read( &hintMask,
+ charstring,
+ cf2_arrstack_size( &hStemHintArray ) +
+ cf2_arrstack_size( &vStemHintArray ) );
+ }
+ else
+ {
+ /*
+ * Consume the counter mask bytes which follow the operator:
+ * Build a temporary hint map, just to place and lock those
+ * stems participating in the counter mask. These are most
+ * likely the dominant hstems, and are grouped together in a
+ * few counter groups, not necessarily in correspondence
+ * with the hint groups. This reduces the chances of
+ * conflicts between hstems that are initially placed in
+ * separate hint groups and then brought together. The
+ * positions are copied back to `hStemHintArray', so we can
+ * discard `counterMask' and `counterHintMap'.
+ *
+ */
+ CF2_HintMapRec counterHintMap;
+ CF2_HintMaskRec counterMask;
+
+
+ cf2_hintmap_init( &counterHintMap,
+ font,
+ &glyphPath.initialHintMap,
+ &glyphPath.hintMoves,
+ scaleY );
+ cf2_hintmask_init( &counterMask, error );
+
+ cf2_hintmask_read( &counterMask,
+ charstring,
+ cf2_arrstack_size( &hStemHintArray ) +
+ cf2_arrstack_size( &vStemHintArray ) );
+ cf2_hintmap_build( &counterHintMap,
+ &hStemHintArray,
+ &vStemHintArray,
+ &counterMask,
+ 0,
+ FALSE );
+ }
+ break;
+
+ case cf2_cmdRMOVETO:
+ FT_TRACE4(( " rmoveto\n" ));
+
+ if ( cf2_stack_count( opStack ) > 2 && !haveWidth )
+ *width = cf2_stack_getReal( opStack, 0 ) + nominalWidthX;
+
+ /* width is defined or default after this */
+ haveWidth = TRUE;
+
+ if ( font->decoder->width_only )
+ goto exit;
+
+ curY += cf2_stack_popFixed( opStack );
+ curX += cf2_stack_popFixed( opStack );
+
+ cf2_glyphpath_moveTo( &glyphPath, curX, curY );
+
+ break;
+
+ case cf2_cmdHMOVETO:
+ FT_TRACE4(( " hmoveto\n" ));
+
+ if ( cf2_stack_count( opStack ) > 1 && !haveWidth )
+ *width = cf2_stack_getReal( opStack, 0 ) + nominalWidthX;
+
+ /* width is defined or default after this */
+ haveWidth = TRUE;
+
+ if ( font->decoder->width_only )
+ goto exit;
+
+ curX += cf2_stack_popFixed( opStack );
+
+ cf2_glyphpath_moveTo( &glyphPath, curX, curY );
+
+ break;
+
+ case cf2_cmdRLINECURVE:
+ {
+ CF2_UInt count = cf2_stack_count( opStack );
+ CF2_UInt index = 0;
+
+
+ FT_TRACE4(( " rlinecurve\n" ));
+
+ while ( index + 6 < count )
+ {
+ curX += cf2_stack_getReal( opStack, index + 0 );
+ curY += cf2_stack_getReal( opStack, index + 1 );
+
+ cf2_glyphpath_lineTo( &glyphPath, curX, curY );
+ index += 2;
+ }
+
+ while ( index < count )
+ {
+ CF2_Fixed x1 = cf2_stack_getReal( opStack, index + 0 ) + curX;
+ CF2_Fixed y1 = cf2_stack_getReal( opStack, index + 1 ) + curY;
+ CF2_Fixed x2 = cf2_stack_getReal( opStack, index + 2 ) + x1;
+ CF2_Fixed y2 = cf2_stack_getReal( opStack, index + 3 ) + y1;
+ CF2_Fixed x3 = cf2_stack_getReal( opStack, index + 4 ) + x2;
+ CF2_Fixed y3 = cf2_stack_getReal( opStack, index + 5 ) + y2;
+
+
+ cf2_glyphpath_curveTo( &glyphPath, x1, y1, x2, y2, x3, y3 );
+
+ curX = x3;
+ curY = y3;
+ index += 6;
+ }
+
+ cf2_stack_clear( opStack );
+ }
+ continue; /* no need to clear stack again */
+
+ case cf2_cmdVVCURVETO:
+ {
+ CF2_UInt count = cf2_stack_count( opStack );
+ CF2_UInt index = 0;
+
+
+ FT_TRACE4(( " vvcurveto\n" ));
+
+ while ( index < count )
+ {
+ CF2_Fixed x1, y1, x2, y2, x3, y3;
+
+
+ if ( ( count - index ) & 1 )
+ {
+ x1 = cf2_stack_getReal( opStack, index ) + curX;
+
+ ++index;
+ }
+ else
+ x1 = curX;
+
+ y1 = cf2_stack_getReal( opStack, index + 0 ) + curY;
+ x2 = cf2_stack_getReal( opStack, index + 1 ) + x1;
+ y2 = cf2_stack_getReal( opStack, index + 2 ) + y1;
+ x3 = x2;
+ y3 = cf2_stack_getReal( opStack, index + 3 ) + y2;
+
+ cf2_glyphpath_curveTo( &glyphPath, x1, y1, x2, y2, x3, y3 );
+
+ curX = x3;
+ curY = y3;
+ index += 4;
+ }
+
+ cf2_stack_clear( opStack );
+ }
+ continue; /* no need to clear stack again */
+
+ case cf2_cmdHHCURVETO:
+ {
+ CF2_UInt count = cf2_stack_count( opStack );
+ CF2_UInt index = 0;
+
+
+ FT_TRACE4(( " hhcurveto\n" ));
+
+ while ( index < count )
+ {
+ CF2_Fixed x1, y1, x2, y2, x3, y3;
+
+
+ if ( ( count - index ) & 1 )
+ {
+ y1 = cf2_stack_getReal( opStack, index ) + curY;
+
+ ++index;
+ }
+ else
+ y1 = curY;
+
+ x1 = cf2_stack_getReal( opStack, index + 0 ) + curX;
+ x2 = cf2_stack_getReal( opStack, index + 1 ) + x1;
+ y2 = cf2_stack_getReal( opStack, index + 2 ) + y1;
+ x3 = cf2_stack_getReal( opStack, index + 3 ) + x2;
+ y3 = y2;
+
+ cf2_glyphpath_curveTo( &glyphPath, x1, y1, x2, y2, x3, y3 );
+
+ curX = x3;
+ curY = y3;
+ index += 4;
+ }
+
+ cf2_stack_clear( opStack );
+ }
+ continue; /* no need to clear stack again */
+
+ case cf2_cmdVHCURVETO:
+ case cf2_cmdHVCURVETO:
+ {
+ CF2_UInt count = cf2_stack_count( opStack );
+ CF2_UInt index = 0;
+
+ FT_Bool alternate = op1 == cf2_cmdHVCURVETO;
+
+
+ FT_TRACE4(( alternate ? " hvcurveto\n" : " vhcurveto\n" ));
+
+ while ( index < count )
+ {
+ CF2_Fixed x1, x2, x3, y1, y2, y3;
+
+
+ if ( alternate )
+ {
+ x1 = cf2_stack_getReal( opStack, index + 0 ) + curX;
+ y1 = curY;
+ x2 = cf2_stack_getReal( opStack, index + 1 ) + x1;
+ y2 = cf2_stack_getReal( opStack, index + 2 ) + y1;
+ y3 = cf2_stack_getReal( opStack, index + 3 ) + y2;
+
+ if ( count - index == 5 )
+ {
+ x3 = cf2_stack_getReal( opStack, index + 4 ) + x2;
+
+ ++index;
+ }
+ else
+ x3 = x2;
+
+ alternate = FALSE;
+ }
+ else
+ {
+ x1 = curX;
+ y1 = cf2_stack_getReal( opStack, index + 0 ) + curY;
+ x2 = cf2_stack_getReal( opStack, index + 1 ) + x1;
+ y2 = cf2_stack_getReal( opStack, index + 2 ) + y1;
+ x3 = cf2_stack_getReal( opStack, index + 3 ) + x2;
+
+ if ( count - index == 5 )
+ {
+ y3 = cf2_stack_getReal( opStack, index + 4 ) + y2;
+
+ ++index;
+ }
+ else
+ y3 = y2;
+
+ alternate = TRUE;
+ }
+
+ cf2_glyphpath_curveTo( &glyphPath, x1, y1, x2, y2, x3, y3 );
+
+ curX = x3;
+ curY = y3;
+ index += 4;
+ }
+
+ cf2_stack_clear( opStack );
+ }
+ continue; /* no need to clear stack again */
+
+ case cf2_cmdEXTENDEDNMBR:
+ {
+ CF2_Int v;
+
+
+ v = (FT_Short)( ( cf2_buf_readByte( charstring ) << 8 ) |
+ cf2_buf_readByte( charstring ) );
+
+ FT_TRACE4(( " %d", v ));
+
+ cf2_stack_pushInt( opStack, v );
+ }
+ continue;
+
+ default:
+ /* numbers */
+ {
+ if ( /* op1 >= 32 && */ op1 <= 246 )
+ {
+ CF2_Int v;
+
+
+ v = op1 - 139;
+
+ FT_TRACE4(( " %d", v ));
+
+ /* -107 .. 107 */
+ cf2_stack_pushInt( opStack, v );
+ }
+
+ else if ( /* op1 >= 247 && */ op1 <= 250 )
+ {
+ CF2_Int v;
+
+
+ v = op1;
+ v -= 247;
+ v *= 256;
+ v += cf2_buf_readByte( charstring );
+ v += 108;
+
+ FT_TRACE4(( " %d", v ));
+
+ /* 108 .. 1131 */
+ cf2_stack_pushInt( opStack, v );
+ }
+
+ else if ( /* op1 >= 251 && */ op1 <= 254 )
+ {
+ CF2_Int v;
+
+
+ v = op1;
+ v -= 251;
+ v *= 256;
+ v += cf2_buf_readByte( charstring );
+ v = -v - 108;
+
+ FT_TRACE4(( " %d", v ));
+
+ /* -1131 .. -108 */
+ cf2_stack_pushInt( opStack, v );
+ }
+
+ else /* op1 == 255 */
+ {
+ CF2_Fixed v;
+
+
+ v = (CF2_Fixed)
+ ( ( (FT_UInt32)cf2_buf_readByte( charstring ) << 24 ) |
+ ( (FT_UInt32)cf2_buf_readByte( charstring ) << 16 ) |
+ ( (FT_UInt32)cf2_buf_readByte( charstring ) << 8 ) |
+ (FT_UInt32)cf2_buf_readByte( charstring ) );
+
+ FT_TRACE4(( " %.2f", v / 65536.0 ));
+
+ cf2_stack_pushFixed( opStack, v );
+ }
+ }
+ continue; /* don't clear stack */
+
+ } /* end of switch statement checking `op1' */
+
+ cf2_stack_clear( opStack );
+
+ } /* end of main interpreter loop */
+
+ /* we get here if the charstring ends without cf2_cmdENDCHAR */
+ FT_TRACE4(( "cf2_interpT2CharString:"
+ " charstring ends without ENDCHAR\n" ));
+
+ exit:
+ /* check whether last error seen is also the first one */
+ cf2_setError( error, lastError );
+
+ /* free resources from objects we've used */
+ cf2_glyphpath_finalize( &glyphPath );
+ cf2_arrstack_finalize( &vStemHintArray );
+ cf2_arrstack_finalize( &hStemHintArray );
+ cf2_arrstack_finalize( &subrStack );
+ cf2_stack_free( opStack );
+
+ FT_TRACE4(( "\n" ));
+
+ return;
+ }
+
+
+/* END */
diff --git a/src/cff/cf2intrp.h b/src/cff/cf2intrp.h
new file mode 100644
index 0000000..b5d8947
--- /dev/null
+++ b/src/cff/cf2intrp.h
@@ -0,0 +1,83 @@
+/***************************************************************************/
+/* */
+/* cf2font.h */
+/* */
+/* Adobe's CFF Interpreter (specification). */
+/* */
+/* Copyright 2007-2013 Adobe Systems Incorporated. */
+/* */
+/* This software, and all works of authorship, whether in source or */
+/* object code form as indicated by the copyright notice(s) included */
+/* herein (collectively, the "Work") is made available, and may only be */
+/* used, modified, and distributed under the FreeType Project License, */
+/* LICENSE.TXT. Additionally, subject to the terms and conditions of the */
+/* FreeType Project License, each contributor to the Work hereby grants */
+/* to any individual or legal entity exercising permissions granted by */
+/* the FreeType Project License and this section (hereafter, "You" or */
+/* "Your") a perpetual, worldwide, non-exclusive, no-charge, */
+/* royalty-free, irrevocable (except as stated in this section) patent */
+/* license to make, have made, use, offer to sell, sell, import, and */
+/* otherwise transfer the Work, where such license applies only to those */
+/* patent claims licensable by such contributor that are necessarily */
+/* infringed by their contribution(s) alone or by combination of their */
+/* contribution(s) with the Work to which such contribution(s) was */
+/* submitted. If You institute patent litigation against any entity */
+/* (including a cross-claim or counterclaim in a lawsuit) alleging that */
+/* the Work or a contribution incorporated within the Work constitutes */
+/* direct or contributory patent infringement, then any patent licenses */
+/* granted to You under this License for that Work shall terminate as of */
+/* the date such litigation is filed. */
+/* */
+/* By using, modifying, or distributing the Work you indicate that you */
+/* have read and understood the terms and conditions of the */
+/* FreeType Project License as well as those provided in this section, */
+/* and you accept them fully. */
+/* */
+/***************************************************************************/
+
+
+#ifndef __CF2INTRP_H__
+#define __CF2INTRP_H__
+
+
+#include "cf2ft.h"
+#include "cf2hints.h"
+
+
+FT_BEGIN_HEADER
+
+
+ FT_LOCAL( void )
+ cf2_hintmask_init( CF2_HintMask hintmask,
+ FT_Error* error );
+ FT_LOCAL( FT_Bool )
+ cf2_hintmask_isValid( const CF2_HintMask hintmask );
+ FT_LOCAL( FT_Bool )
+ cf2_hintmask_isNew( const CF2_HintMask hintmask );
+ FT_LOCAL( void )
+ cf2_hintmask_setNew( CF2_HintMask hintmask,
+ FT_Bool val );
+ FT_LOCAL( FT_Byte* )
+ cf2_hintmask_getMaskPtr( CF2_HintMask hintmask );
+ FT_LOCAL( void )
+ cf2_hintmask_setAll( CF2_HintMask hintmask,
+ size_t bitCount );
+
+ FT_LOCAL( void )
+ cf2_interpT2CharString( CF2_Font font,
+ CF2_Buffer charstring,
+ CF2_OutlineCallbacks callbacks,
+ const FT_Vector* translation,
+ FT_Bool doingSeac,
+ CF2_Fixed curX,
+ CF2_Fixed curY,
+ CF2_Fixed* width );
+
+
+FT_END_HEADER
+
+
+#endif /* __CF2INTRP_H__ */
+
+
+/* END */
diff --git a/src/cff/cf2read.c b/src/cff/cf2read.c
new file mode 100644
index 0000000..cb671ec
--- /dev/null
+++ b/src/cff/cf2read.c
@@ -0,0 +1,112 @@
+/***************************************************************************/
+/* */
+/* cf2read.c */
+/* */
+/* Adobe's code for stream handling (body). */
+/* */
+/* Copyright 2007-2013 Adobe Systems Incorporated. */
+/* */
+/* This software, and all works of authorship, whether in source or */
+/* object code form as indicated by the copyright notice(s) included */
+/* herein (collectively, the "Work") is made available, and may only be */
+/* used, modified, and distributed under the FreeType Project License, */
+/* LICENSE.TXT. Additionally, subject to the terms and conditions of the */
+/* FreeType Project License, each contributor to the Work hereby grants */
+/* to any individual or legal entity exercising permissions granted by */
+/* the FreeType Project License and this section (hereafter, "You" or */
+/* "Your") a perpetual, worldwide, non-exclusive, no-charge, */
+/* royalty-free, irrevocable (except as stated in this section) patent */
+/* license to make, have made, use, offer to sell, sell, import, and */
+/* otherwise transfer the Work, where such license applies only to those */
+/* patent claims licensable by such contributor that are necessarily */
+/* infringed by their contribution(s) alone or by combination of their */
+/* contribution(s) with the Work to which such contribution(s) was */
+/* submitted. If You institute patent litigation against any entity */
+/* (including a cross-claim or counterclaim in a lawsuit) alleging that */
+/* the Work or a contribution incorporated within the Work constitutes */
+/* direct or contributory patent infringement, then any patent licenses */
+/* granted to You under this License for that Work shall terminate as of */
+/* the date such litigation is filed. */
+/* */
+/* By using, modifying, or distributing the Work you indicate that you */
+/* have read and understood the terms and conditions of the */
+/* FreeType Project License as well as those provided in this section, */
+/* and you accept them fully. */
+/* */
+/***************************************************************************/
+
+
+#include "cf2ft.h"
+#include FT_INTERNAL_DEBUG_H
+
+#include "cf2glue.h"
+
+#include "cf2error.h"
+
+
+ /* Define CF2_IO_FAIL as 1 to enable random errors and random */
+ /* value errors in I/O. */
+#define CF2_IO_FAIL 0
+
+
+#if CF2_IO_FAIL
+
+ /* set the .00 value to a nonzero probability */
+ static int
+ randomError2( void )
+ {
+ /* for region buffer ReadByte (interp) function */
+ return (double)rand() / RAND_MAX < .00;
+ }
+
+ /* set the .00 value to a nonzero probability */
+ static CF2_Int
+ randomValue()
+ {
+ return (double)rand() / RAND_MAX < .00 ? rand() : 0;
+ }
+
+#endif /* CF2_IO_FAIL */
+
+
+ /* Region Buffer */
+ /* */
+ /* Can be constructed from a copied buffer managed by */
+ /* `FCM_getDatablock'. */
+ /* Reads bytes with check for end of buffer. */
+
+ /* reading past the end of the buffer sets error and returns zero */
+ FT_LOCAL_DEF( CF2_Int )
+ cf2_buf_readByte( CF2_Buffer buf )
+ {
+ if ( buf->ptr < buf->end )
+ {
+#if CF2_IO_FAIL
+ if ( randomError2() )
+ {
+ CF2_SET_ERROR( buf->error, Invalid_Stream_Operation );
+ return 0;
+ }
+
+ return *(buf->ptr)++ + randomValue();
+#else
+ return *(buf->ptr)++;
+#endif
+ }
+ else
+ {
+ CF2_SET_ERROR( buf->error, Invalid_Stream_Operation );
+ return 0;
+ }
+ }
+
+
+ /* note: end condition can occur without error */
+ FT_LOCAL_DEF( FT_Bool )
+ cf2_buf_isEnd( CF2_Buffer buf )
+ {
+ return buf->ptr >= buf->end;
+ }
+
+
+/* END */
diff --git a/src/cff/cf2read.h b/src/cff/cf2read.h
new file mode 100644
index 0000000..7ef7c8c
--- /dev/null
+++ b/src/cff/cf2read.h
@@ -0,0 +1,68 @@
+/***************************************************************************/
+/* */
+/* cf2read.h */
+/* */
+/* Adobe's code for stream handling (specification). */
+/* */
+/* Copyright 2007-2013 Adobe Systems Incorporated. */
+/* */
+/* This software, and all works of authorship, whether in source or */
+/* object code form as indicated by the copyright notice(s) included */
+/* herein (collectively, the "Work") is made available, and may only be */
+/* used, modified, and distributed under the FreeType Project License, */
+/* LICENSE.TXT. Additionally, subject to the terms and conditions of the */
+/* FreeType Project License, each contributor to the Work hereby grants */
+/* to any individual or legal entity exercising permissions granted by */
+/* the FreeType Project License and this section (hereafter, "You" or */
+/* "Your") a perpetual, worldwide, non-exclusive, no-charge, */
+/* royalty-free, irrevocable (except as stated in this section) patent */
+/* license to make, have made, use, offer to sell, sell, import, and */
+/* otherwise transfer the Work, where such license applies only to those */
+/* patent claims licensable by such contributor that are necessarily */
+/* infringed by their contribution(s) alone or by combination of their */
+/* contribution(s) with the Work to which such contribution(s) was */
+/* submitted. If You institute patent litigation against any entity */
+/* (including a cross-claim or counterclaim in a lawsuit) alleging that */
+/* the Work or a contribution incorporated within the Work constitutes */
+/* direct or contributory patent infringement, then any patent licenses */
+/* granted to You under this License for that Work shall terminate as of */
+/* the date such litigation is filed. */
+/* */
+/* By using, modifying, or distributing the Work you indicate that you */
+/* have read and understood the terms and conditions of the */
+/* FreeType Project License as well as those provided in this section, */
+/* and you accept them fully. */
+/* */
+/***************************************************************************/
+
+
+#ifndef __CF2READ_H__
+#define __CF2READ_H__
+
+
+FT_BEGIN_HEADER
+
+
+ typedef struct CF2_BufferRec_
+ {
+ FT_Error* error;
+ const FT_Byte* start;
+ const FT_Byte* end;
+ const FT_Byte* ptr;
+
+ } CF2_BufferRec, *CF2_Buffer;
+
+
+ FT_LOCAL( CF2_Int )
+ cf2_buf_readByte( CF2_Buffer buf );
+ FT_LOCAL( FT_Bool )
+ cf2_buf_isEnd( CF2_Buffer buf );
+
+
+FT_END_HEADER
+
+
+#endif /* __CF2READ_H__ */
+
+
+/* END */
diff --git a/src/cff/cf2stack.c b/src/cff/cf2stack.c
new file mode 100644
index 0000000..8332b5d
--- /dev/null
+++ b/src/cff/cf2stack.c
@@ -0,0 +1,205 @@
+/***************************************************************************/
+/* */
+/* cf2stack.c */
+/* */
+/* Adobe's code for emulating a CFF stack (body). */
+/* */
+/* Copyright 2007-2013 Adobe Systems Incorporated. */
+/* */
+/* This software, and all works of authorship, whether in source or */
+/* object code form as indicated by the copyright notice(s) included */
+/* herein (collectively, the "Work") is made available, and may only be */
+/* used, modified, and distributed under the FreeType Project License, */
+/* LICENSE.TXT. Additionally, subject to the terms and conditions of the */
+/* FreeType Project License, each contributor to the Work hereby grants */
+/* to any individual or legal entity exercising permissions granted by */
+/* the FreeType Project License and this section (hereafter, "You" or */
+/* "Your") a perpetual, worldwide, non-exclusive, no-charge, */
+/* royalty-free, irrevocable (except as stated in this section) patent */
+/* license to make, have made, use, offer to sell, sell, import, and */
+/* otherwise transfer the Work, where such license applies only to those */
+/* patent claims licensable by such contributor that are necessarily */
+/* infringed by their contribution(s) alone or by combination of their */
+/* contribution(s) with the Work to which such contribution(s) was */
+/* submitted. If You institute patent litigation against any entity */
+/* (including a cross-claim or counterclaim in a lawsuit) alleging that */
+/* the Work or a contribution incorporated within the Work constitutes */
+/* direct or contributory patent infringement, then any patent licenses */
+/* granted to You under this License for that Work shall terminate as of */
+/* the date such litigation is filed. */
+/* */
+/* By using, modifying, or distributing the Work you indicate that you */
+/* have read and understood the terms and conditions of the */
+/* FreeType Project License as well as those provided in this section, */
+/* and you accept them fully. */
+/* */
+/***************************************************************************/
+
+
+#include "cf2ft.h"
+#include FT_INTERNAL_DEBUG_H
+
+#include "cf2glue.h"
+#include "cf2font.h"
+#include "cf2stack.h"
+
+#include "cf2error.h"
+
+
+ /* Allocate and initialize an instance of CF2_Stack. */
+ /* Note: This function returns NULL on error (does not set */
+ /* `error'). */
+ FT_LOCAL_DEF( CF2_Stack )
+ cf2_stack_init( FT_Memory memory,
+ FT_Error* e )
+ {
+ FT_Error error = FT_Err_Ok; /* for FT_QNEW */
+
+ CF2_Stack stack = NULL;
+
+
+ if ( !FT_QNEW( stack ) )
+ {
+ /* initialize the structure; FT_QNEW zeroes it */
+ stack->memory = memory;
+ stack->error = e;
+ stack->top = &stack->buffer[0]; /* empty stack */
+ }
+
+ return stack;
+ }
+
+
+ FT_LOCAL_DEF( void )
+ cf2_stack_free( CF2_Stack stack )
+ {
+ if ( stack )
+ {
+ FT_Memory memory = stack->memory;
+
+
+ /* free the main structure */
+ FT_FREE( stack );
+ }
+ }
+
+
+ FT_LOCAL_DEF( CF2_UInt )
+ cf2_stack_count( CF2_Stack stack )
+ {
+ return (CF2_UInt)( stack->top - &stack->buffer[0] );
+ }
+
+
+ FT_LOCAL_DEF( void )
+ cf2_stack_pushInt( CF2_Stack stack,
+ CF2_Int val )
+ {
+ if ( stack->top == &stack->buffer[CF2_OPERAND_STACK_SIZE] )
+ {
+ CF2_SET_ERROR( stack->error, Stack_Overflow );
+ return; /* stack overflow */
+ }
+
+ stack->top->u.i = val;
+ stack->top->type = CF2_NumberInt;
+ ++stack->top;
+ }
+
+
+ FT_LOCAL_DEF( void )
+ cf2_stack_pushFixed( CF2_Stack stack,
+ CF2_Fixed val )
+ {
+ if ( stack->top == &stack->buffer[CF2_OPERAND_STACK_SIZE] )
+ {
+ CF2_SET_ERROR( stack->error, Stack_Overflow );
+ return; /* stack overflow */
+ }
+
+ stack->top->u.r = val;
+ stack->top->type = CF2_NumberFixed;
+ ++stack->top;
+ }
+
+
+ /* this function is only allowed to pop an integer type */
+ FT_LOCAL_DEF( CF2_Int )
+ cf2_stack_popInt( CF2_Stack stack )
+ {
+ if ( stack->top == &stack->buffer[0] )
+ {
+ CF2_SET_ERROR( stack->error, Stack_Underflow );
+ return 0; /* underflow */
+ }
+ if ( stack->top[-1].type != CF2_NumberInt )
+ {
+ CF2_SET_ERROR( stack->error, Syntax_Error );
+ return 0; /* type mismatch */
+ }
+
+ --stack->top;
+
+ return stack->top->u.i;
+ }
+
+
+ /* Note: type mismatch is silently cast */
+ /* TODO: check this */
+ FT_LOCAL_DEF( CF2_Fixed )
+ cf2_stack_popFixed( CF2_Stack stack )
+ {
+ if ( stack->top == &stack->buffer[0] )
+ {
+ CF2_SET_ERROR( stack->error, Stack_Underflow );
+ return cf2_intToFixed( 0 ); /* underflow */
+ }
+
+ --stack->top;
+
+ switch ( stack->top->type )
+ {
+ case CF2_NumberInt:
+ return cf2_intToFixed( stack->top->u.i );
+ case CF2_NumberFrac:
+ return cf2_fracToFixed( stack->top->u.f );
+ default:
+ return stack->top->u.r;
+ }
+ }
+
+
+ /* Note: type mismatch is silently cast */
+ /* TODO: check this */
+ FT_LOCAL_DEF( CF2_Fixed )
+ cf2_stack_getReal( CF2_Stack stack,
+ CF2_UInt idx )
+ {
+ FT_ASSERT( cf2_stack_count( stack ) <= CF2_OPERAND_STACK_SIZE );
+
+ if ( idx >= cf2_stack_count( stack ) )
+ {
+ CF2_SET_ERROR( stack->error, Stack_Overflow );
+ return cf2_intToFixed( 0 ); /* bounds error */
+ }
+
+ switch ( stack->buffer[idx].type )
+ {
+ case CF2_NumberInt:
+ return cf2_intToFixed( stack->buffer[idx].u.i );
+ case CF2_NumberFrac:
+ return cf2_fracToFixed( stack->buffer[idx].u.f );
+ default:
+ return stack->buffer[idx].u.r;
+ }
+ }
+
+
+ FT_LOCAL_DEF( void )
+ cf2_stack_clear( CF2_Stack stack )
+ {
+ stack->top = &stack->buffer[0];
+ }
+
+
+/* END */
diff --git a/src/cff/cf2stack.h b/src/cff/cf2stack.h
new file mode 100644
index 0000000..7d6d196
--- /dev/null
+++ b/src/cff/cf2stack.h
@@ -0,0 +1,106 @@
+/***************************************************************************/
+/* */
+/* cf2stack.h */
+/* */
+/* Adobe's code for emulating a CFF stack (specification). */
+/* */
+/* Copyright 2007-2013 Adobe Systems Incorporated. */
+/* */
+/* This software, and all works of authorship, whether in source or */
+/* object code form as indicated by the copyright notice(s) included */
+/* herein (collectively, the "Work") is made available, and may only be */
+/* used, modified, and distributed under the FreeType Project License, */
+/* LICENSE.TXT. Additionally, subject to the terms and conditions of the */
+/* FreeType Project License, each contributor to the Work hereby grants */
+/* to any individual or legal entity exercising permissions granted by */
+/* the FreeType Project License and this section (hereafter, "You" or */
+/* "Your") a perpetual, worldwide, non-exclusive, no-charge, */
+/* royalty-free, irrevocable (except as stated in this section) patent */
+/* license to make, have made, use, offer to sell, sell, import, and */
+/* otherwise transfer the Work, where such license applies only to those */
+/* patent claims licensable by such contributor that are necessarily */
+/* infringed by their contribution(s) alone or by combination of their */
+/* contribution(s) with the Work to which such contribution(s) was */
+/* submitted. If You institute patent litigation against any entity */
+/* (including a cross-claim or counterclaim in a lawsuit) alleging that */
+/* the Work or a contribution incorporated within the Work constitutes */
+/* direct or contributory patent infringement, then any patent licenses */
+/* granted to You under this License for that Work shall terminate as of */
+/* the date such litigation is filed. */
+/* */
+/* By using, modifying, or distributing the Work you indicate that you */
+/* have read and understood the terms and conditions of the */
+/* FreeType Project License as well as those provided in this section, */
+/* and you accept them fully. */
+/* */
+/***************************************************************************/
+
+
+#ifndef __CF2STACK_H__
+#define __CF2STACK_H__
+
+
+FT_BEGIN_HEADER
+
+
+ /* CFF operand stack; specified maximum of 48 or 192 values */
+ typedef struct CF2_StackNumber_
+ {
+ union
+ {
+ CF2_Fixed r; /* 16.16 fixed point */
+ CF2_Frac f; /* 2.30 fixed point (for font matrix) */
+ CF2_Int i;
+ } u;
+
+ CF2_NumberType type;
+
+ } CF2_StackNumber;
+
+
+ typedef struct CF2_StackRec_
+ {
+ FT_Memory memory;
+ FT_Error* error;
+ CF2_StackNumber buffer[CF2_OPERAND_STACK_SIZE];
+ CF2_StackNumber* top;
+
+ } CF2_StackRec, *CF2_Stack;
+
+
+ FT_LOCAL( CF2_Stack )
+ cf2_stack_init( FT_Memory memory,
+ FT_Error* error );
+ FT_LOCAL( void )
+ cf2_stack_free( CF2_Stack stack );
+
+ FT_LOCAL( CF2_UInt )
+ cf2_stack_count( CF2_Stack stack );
+
+ FT_LOCAL( void )
+ cf2_stack_pushInt( CF2_Stack stack,
+ CF2_Int val );
+ FT_LOCAL( void )
+ cf2_stack_pushFixed( CF2_Stack stack,
+ CF2_Fixed val );
+
+ FT_LOCAL( CF2_Int )
+ cf2_stack_popInt( CF2_Stack stack );
+ FT_LOCAL( CF2_Fixed )
+ cf2_stack_popFixed( CF2_Stack stack );
+
+ FT_LOCAL( CF2_Fixed )
+ cf2_stack_getReal( CF2_Stack stack,
+ CF2_UInt idx );
+
+ FT_LOCAL( void )
+ cf2_stack_clear( CF2_Stack stack );
+
+
+FT_END_HEADER
+
+
+#endif /* __CF2STACK_H__ */
+
+
+/* END */
diff --git a/src/cff/cf2types.h b/src/cff/cf2types.h
new file mode 100644
index 0000000..ac6a022
--- /dev/null
+++ b/src/cff/cf2types.h
@@ -0,0 +1,78 @@
+/***************************************************************************/
+/* */
+/* cf2types.h */
+/* */
+/* Adobe's code for defining data types (specification only). */
+/* */
+/* Copyright 2011-2013 Adobe Systems Incorporated. */
+/* */
+/* This software, and all works of authorship, whether in source or */
+/* object code form as indicated by the copyright notice(s) included */
+/* herein (collectively, the "Work") is made available, and may only be */
+/* used, modified, and distributed under the FreeType Project License, */
+/* LICENSE.TXT. Additionally, subject to the terms and conditions of the */
+/* FreeType Project License, each contributor to the Work hereby grants */
+/* to any individual or legal entity exercising permissions granted by */
+/* the FreeType Project License and this section (hereafter, "You" or */
+/* "Your") a perpetual, worldwide, non-exclusive, no-charge, */
+/* royalty-free, irrevocable (except as stated in this section) patent */
+/* license to make, have made, use, offer to sell, sell, import, and */
+/* otherwise transfer the Work, where such license applies only to those */
+/* patent claims licensable by such contributor that are necessarily */
+/* infringed by their contribution(s) alone or by combination of their */
+/* contribution(s) with the Work to which such contribution(s) was */
+/* submitted. If You institute patent litigation against any entity */
+/* (including a cross-claim or counterclaim in a lawsuit) alleging that */
+/* the Work or a contribution incorporated within the Work constitutes */
+/* direct or contributory patent infringement, then any patent licenses */
+/* granted to You under this License for that Work shall terminate as of */
+/* the date such litigation is filed. */
+/* */
+/* By using, modifying, or distributing the Work you indicate that you */
+/* have read and understood the terms and conditions of the */
+/* FreeType Project License as well as those provided in this section, */
+/* and you accept them fully. */
+/* */
+/***************************************************************************/
+
+
+#ifndef __CF2TYPES_H__
+#define __CF2TYPES_H__
+
+#include <ft2build.h>
+#include FT_FREETYPE_H
+
+
+FT_BEGIN_HEADER
+
+
+ /*
+ * The data models that we expect to support are as follows:
+ *
+ * name char short int long long-long pointer example
+ * -----------------------------------------------------
+ * ILP32 8 16 32 32 64* 32 32-bit MacOS, x86
+ * LLP64 8 16 32 32 64 64 x64
+ * LP64 8 16 32 64 64 64 64-bit MacOS
+ *
+ * *) type may be supported by emulation on a 32-bit architecture
+ *
+ */
+
+
+ /* integers at least 32 bits wide */
+#define CF2_UInt FT_UFast
+#define CF2_Int FT_Fast
+
+
+ /* fixed-float numbers */
+ typedef FT_Int32 CF2_F16Dot16;
+
+
+FT_END_HEADER
+
+
+#endif /* __CF2TYPES_H__ */
+
+
+/* END */
diff --git a/src/cff/cff.c b/src/cff/cff.c
index fccfd44..c3840b5 100644
--- a/src/cff/cff.c
+++ b/src/cff/cff.c
@@ -4,7 +4,7 @@
/* */
/* FreeType OpenType driver component (body only). */
/* */
-/* Copyright 1996-2001, 2002 by */
+/* Copyright 1996-2001, 2002, 2013 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -19,6 +19,7 @@
#define FT_MAKE_OPTION_SINGLE_OBJECT
#include <ft2build.h>
+
#include "cffpic.c"
#include "cffdrivr.c"
#include "cffparse.c"
@@ -27,4 +28,14 @@
#include "cffgload.c"
#include "cffcmap.c"
+#include "cf2arrst.c"
+#include "cf2blues.c"
+#include "cf2error.c"
+#include "cf2font.c"
+#include "cf2ft.c"
+#include "cf2hints.c"
+#include "cf2intrp.c"
+#include "cf2read.c"
+#include "cf2stack.c"
+
/* END */
diff --git a/src/cff/cffcmap.c b/src/cff/cffcmap.c
index 1298371..f6e03c6 100644
--- a/src/cff/cffcmap.c
+++ b/src/cff/cffcmap.c
@@ -4,7 +4,7 @@
/* */
/* CFF character mapping table (cmap) support (body). */
/* */
-/* Copyright 2002, 2003, 2004, 2005, 2006, 2007, 2010 by */
+/* Copyright 2002-2007, 2010, 2013 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -16,6 +16,8 @@
/***************************************************************************/
+#include <ft2build.h>
+#include FT_INTERNAL_DEBUG_H
#include "cffcmap.h"
#include "cffload.h"
@@ -145,7 +147,7 @@
/* can't build Unicode map for CID-keyed font */
/* because we don't know glyph names. */
if ( !charset->sids )
- return CFF_Err_No_Unicode_Glyph_Name;
+ return FT_THROW( No_Unicode_Glyph_Name );
return psnames->unicodes_init( memory,
unicodes,
diff --git a/src/cff/cffdrivr.c b/src/cff/cffdrivr.c
index eb4c14e..c8ca96b 100644
--- a/src/cff/cffdrivr.c
+++ b/src/cff/cffdrivr.c
@@ -4,7 +4,7 @@
/* */
/* OpenType font driver implementation (body). */
/* */
-/* Copyright 1996-2012 by */
+/* Copyright 1996-2013 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -37,6 +37,8 @@
#include FT_SERVICE_XFREE86_NAME_H
#include FT_SERVICE_GLYPH_DICT_H
+#include FT_SERVICE_PROPERTIES_H
+#include FT_CFF_DRIVER_H
/*************************************************************************/
@@ -115,7 +117,7 @@
if ( sfnt )
kerning->x = sfnt->get_kerning( face, left_glyph, right_glyph );
- return CFF_Err_Ok;
+ return FT_Err_Ok;
}
@@ -160,7 +162,7 @@
if ( !slot )
- return CFF_Err_Invalid_Slot_Handle;
+ return FT_THROW( Invalid_Slot_Handle );
/* check whether we want a scaled outline or bitmap */
if ( !size )
@@ -174,7 +176,7 @@
{
/* these two objects must have the same parent */
if ( cffsize->face != cffslot->face )
- return CFF_Err_Invalid_Face_Handle;
+ return FT_THROW( Invalid_Face_Handle );
}
/* now load the glyph outline if necessary */
@@ -195,7 +197,7 @@
FT_Fixed* advances )
{
FT_UInt nn;
- FT_Error error = CFF_Err_Ok;
+ FT_Error error = FT_Err_Ok;
FT_GlyphSlot slot = face->glyph;
@@ -239,7 +241,7 @@
" cannot get glyph name from CFF & CEF fonts\n"
" "
" without the `PSNames' module\n" ));
- error = CFF_Err_Missing_Module;
+ error = FT_THROW( Missing_Module );
goto Exit;
}
@@ -252,7 +254,7 @@
if ( gname )
FT_STRCPYN( buffer, gname, buffer_max );
- error = CFF_Err_Ok;
+ error = FT_Err_Ok;
Exit:
return error;
@@ -298,7 +300,8 @@
}
- FT_DEFINE_SERVICE_GLYPHDICTREC(cff_service_glyph_dict,
+ FT_DEFINE_SERVICE_GLYPHDICTREC(
+ cff_service_glyph_dict,
(FT_GlyphDict_GetNameFunc) cff_get_glyph_name,
(FT_GlyphDict_NameIndexFunc)cff_get_name_index
)
@@ -321,7 +324,7 @@
PS_FontInfoRec* afont_info )
{
CFF_Font cff = (CFF_Font)face->extra.data;
- FT_Error error = CFF_Err_Ok;
+ FT_Error error = FT_Err_Ok;
if ( cff && cff->font_info == NULL )
@@ -360,7 +363,8 @@
}
- FT_DEFINE_SERVICE_PSINFOREC(cff_service_ps_info,
+ FT_DEFINE_SERVICE_PSINFOREC(
+ cff_service_ps_info,
(PS_GetFontInfoFunc) cff_ps_get_font_info,
(PS_GetFontExtraFunc) NULL,
(PS_HasGlyphNamesFunc) cff_ps_has_glyph_names,
@@ -384,7 +388,8 @@
}
- FT_DEFINE_SERVICE_PSFONTNAMEREC(cff_service_ps_name,
+ FT_DEFINE_SERVICE_PSFONTNAMEREC(
+ cff_service_ps_name,
(FT_PsName_GetFunc)cff_get_ps_name
)
@@ -404,16 +409,17 @@
TT_CMapInfo *cmap_info )
{
FT_CMap cmap = FT_CMAP( charmap );
- FT_Error error = CFF_Err_Ok;
- FT_Face face = FT_CMAP_FACE( cmap );
- FT_Library library = FT_FACE_LIBRARY( face );
+ FT_Error error = FT_Err_Ok;
+
+ FT_Face face = FT_CMAP_FACE( cmap );
+ FT_Library library = FT_FACE_LIBRARY( face );
cmap_info->language = 0;
cmap_info->format = 0;
- if ( cmap->clazz != &FT_CFF_CMAP_ENCODING_CLASS_REC_GET &&
- cmap->clazz != &FT_CFF_CMAP_UNICODE_CLASS_REC_GET )
+ if ( cmap->clazz != &CFF_CMAP_ENCODING_CLASS_REC_GET &&
+ cmap->clazz != &CFF_CMAP_UNICODE_CLASS_REC_GET )
{
FT_Module sfnt = FT_Get_Module( library, "sfnt" );
FT_Service_TTCMaps service =
@@ -429,7 +435,8 @@
}
- FT_DEFINE_SERVICE_TTCMAPSREC(cff_service_get_cmap_info,
+ FT_DEFINE_SERVICE_TTCMAPSREC(
+ cff_service_get_cmap_info,
(TT_CMap_Info_GetFunc)cff_get_cmap_info
)
@@ -444,7 +451,7 @@
const char* *ordering,
FT_Int *supplement )
{
- FT_Error error = CFF_Err_Ok;
+ FT_Error error = FT_Err_Ok;
CFF_Font cff = (CFF_Font)face->extra.data;
@@ -455,7 +462,7 @@
if ( dict->cid_registry == 0xFFFFU )
{
- error = CFF_Err_Invalid_Argument;
+ error = FT_THROW( Invalid_Argument );
goto Fail;
}
@@ -499,7 +506,7 @@
cff_get_is_cid( CFF_Face face,
FT_Bool *is_cid )
{
- FT_Error error = CFF_Err_Ok;
+ FT_Error error = FT_Err_Ok;
CFF_Font cff = (CFF_Font)face->extra.data;
@@ -523,7 +530,7 @@
FT_UInt glyph_index,
FT_UInt *cid )
{
- FT_Error error = CFF_Err_Ok;
+ FT_Error error = FT_Err_Ok;
CFF_Font cff;
@@ -537,13 +544,13 @@
if ( dict->cid_registry == 0xFFFFU )
{
- error = CFF_Err_Invalid_Argument;
+ error = FT_THROW( Invalid_Argument );
goto Fail;
}
if ( glyph_index > cff->num_glyphs )
{
- error = CFF_Err_Invalid_Argument;
+ error = FT_THROW( Invalid_Argument );
goto Fail;
}
@@ -558,13 +565,100 @@
}
- FT_DEFINE_SERVICE_CIDREC(cff_service_cid_info,
+ FT_DEFINE_SERVICE_CIDREC(
+ cff_service_cid_info,
(FT_CID_GetRegistryOrderingSupplementFunc)cff_get_ros,
(FT_CID_GetIsInternallyCIDKeyedFunc) cff_get_is_cid,
(FT_CID_GetCIDFromGlyphIndexFunc) cff_get_cid_from_glyph_index
)
+ /*
+ * PROPERTY SERVICE
+ *
+ */
+ static FT_Error
+ cff_property_set( FT_Module module, /* CFF_Driver */
+ const char* property_name,
+ const void* value )
+ {
+ FT_Error error = FT_Err_Ok;
+ CFF_Driver driver = (CFF_Driver)module;
+
+
+ if ( !ft_strcmp( property_name, "hinting-engine" ) )
+ {
+ FT_UInt* hinting_engine = (FT_UInt*)value;
+
+
+#ifndef CFF_CONFIG_OPTION_OLD_ENGINE
+ if ( *hinting_engine != FT_CFF_HINTING_ADOBE )
+ error = FT_ERR( Unimplemented_Feature );
+ else
+#endif
+ driver->hinting_engine = *hinting_engine;
+
+ return error;
+ }
+ else if ( !ft_strcmp( property_name, "no-stem-darkening" ) )
+ {
+ FT_Bool* no_stem_darkening = (FT_Bool*)value;
+
+
+ driver->no_stem_darkening = *no_stem_darkening;
+
+ return error;
+ }
+
+ FT_TRACE0(( "cff_property_set: missing property `%s'\n",
+ property_name ));
+ return FT_THROW( Missing_Property );
+ }
+
+
+ static FT_Error
+ cff_property_get( FT_Module module, /* CFF_Driver */
+ const char* property_name,
+ const void* value )
+ {
+ FT_Error error = FT_Err_Ok;
+ CFF_Driver driver = (CFF_Driver)module;
+
+ FT_UInt hinting_engine = driver->hinting_engine;
+ FT_Bool no_stem_darkening = driver->no_stem_darkening;
+
+
+ if ( !ft_strcmp( property_name, "hinting-engine" ) )
+ {
+ FT_UInt* val = (FT_UInt*)value;
+
+
+ *val = hinting_engine;
+
+ return error;
+ }
+ else if ( !ft_strcmp( property_name, "no-stem-darkening" ) )
+ {
+ FT_Bool* val = (FT_Bool*)value;
+
+
+ *val = no_stem_darkening;
+
+ return error;
+ }
+
+ FT_TRACE0(( "cff_property_get: missing property `%s'\n",
+ property_name ));
+ return FT_THROW( Missing_Property );
+ }
+
+
+ FT_DEFINE_SERVICE_PROPERTIESREC(
+ cff_service_properties,
+ (FT_Properties_SetFunc)cff_property_set,
+ (FT_Properties_GetFunc)cff_property_get )
+
+
/*************************************************************************/
/*************************************************************************/
/*************************************************************************/
@@ -576,25 +670,31 @@
/*************************************************************************/
/*************************************************************************/
/*************************************************************************/
+
#ifndef FT_CONFIG_OPTION_NO_GLYPH_NAMES
- FT_DEFINE_SERVICEDESCREC6(cff_services,
+ FT_DEFINE_SERVICEDESCREC7(
+ cff_services,
FT_SERVICE_ID_XF86_NAME, FT_XF86_FORMAT_CFF,
- FT_SERVICE_ID_POSTSCRIPT_INFO, &FT_CFF_SERVICE_PS_INFO_GET,
- FT_SERVICE_ID_POSTSCRIPT_FONT_NAME, &FT_CFF_SERVICE_PS_NAME_GET,
- FT_SERVICE_ID_GLYPH_DICT, &FT_CFF_SERVICE_GLYPH_DICT_GET,
- FT_SERVICE_ID_TT_CMAP, &FT_CFF_SERVICE_GET_CMAP_INFO_GET,
- FT_SERVICE_ID_CID, &FT_CFF_SERVICE_CID_INFO_GET
+ FT_SERVICE_ID_POSTSCRIPT_INFO, &CFF_SERVICE_PS_INFO_GET,
+ FT_SERVICE_ID_POSTSCRIPT_FONT_NAME, &CFF_SERVICE_PS_NAME_GET,
+ FT_SERVICE_ID_GLYPH_DICT, &CFF_SERVICE_GLYPH_DICT_GET,
+ FT_SERVICE_ID_TT_CMAP, &CFF_SERVICE_GET_CMAP_INFO_GET,
+ FT_SERVICE_ID_CID, &CFF_SERVICE_CID_INFO_GET,
+ FT_SERVICE_ID_PROPERTIES, &CFF_SERVICE_PROPERTIES_GET
)
#else
- FT_DEFINE_SERVICEDESCREC5(cff_services,
+ FT_DEFINE_SERVICEDESCREC6(
+ cff_services,
FT_SERVICE_ID_XF86_NAME, FT_XF86_FORMAT_CFF,
- FT_SERVICE_ID_POSTSCRIPT_INFO, &FT_CFF_SERVICE_PS_INFO_GET,
- FT_SERVICE_ID_POSTSCRIPT_FONT_NAME, &FT_CFF_SERVICE_PS_NAME_GET,
- FT_SERVICE_ID_TT_CMAP, &FT_CFF_SERVICE_GET_CMAP_INFO_GET,
- FT_SERVICE_ID_CID, &FT_CFF_SERVICE_CID_INFO_GET
+ FT_SERVICE_ID_POSTSCRIPT_INFO, &CFF_SERVICE_PS_INFO_GET,
+ FT_SERVICE_ID_POSTSCRIPT_FONT_NAME, &CFF_SERVICE_PS_NAME_GET,
+ FT_SERVICE_ID_TT_CMAP, &CFF_SERVICE_GET_CMAP_INFO_GET,
+ FT_SERVICE_ID_CID, &CFF_SERVICE_CID_INFO_GET,
+ FT_SERVICE_ID_PROPERTIES, &CFF_SERVICE_PROPERTIES_GET
)
#endif
+
FT_CALLBACK_DEF( FT_Module_Interface )
cff_get_interface( FT_Module driver, /* CFF_Driver */
const char* module_interface )
@@ -604,7 +704,7 @@
FT_Module_Interface result;
- /* FT_CFF_SERVICES_GET derefers `library' in PIC mode */
+ /* CFF_SERVICES_GET derefers `library' in PIC mode */
#ifdef FT_CONFIG_OPTION_PIC
if ( !driver )
return NULL;
@@ -613,7 +713,7 @@
return NULL;
#endif
- result = ft_service_list_lookup( FT_CFF_SERVICES_GET, module_interface );
+ result = ft_service_list_lookup( CFF_SERVICES_GET, module_interface );
if ( result != NULL )
return result;
@@ -641,7 +741,8 @@
#define CFF_SIZE_SELECT 0
#endif
- FT_DEFINE_DRIVER( cff_driver_class,
+ FT_DEFINE_DRIVER(
+ cff_driver_class,
FT_MODULE_FONT_DRIVER |
FT_MODULE_DRIVER_SCALABLE |
@@ -670,9 +771,6 @@
cff_slot_init,
cff_slot_done,
- ft_stub_set_char_sizes, /* FT_CONFIG_OPTION_OLD_INTERNALS */
- ft_stub_set_pixel_sizes, /* FT_CONFIG_OPTION_OLD_INTERNALS */
-
cff_glyph_load,
cff_get_kerning,
diff --git a/src/cff/cffgload.c b/src/cff/cffgload.c
index 84847fd..1904ca0 100644
--- a/src/cff/cffgload.c
+++ b/src/cff/cffgload.c
@@ -4,7 +4,7 @@
/* */
/* OpenType Glyph Loader (body). */
/* */
-/* Copyright 1996-2012 by */
+/* Copyright 1996-2013 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -21,10 +21,12 @@
#include FT_INTERNAL_STREAM_H
#include FT_INTERNAL_SFNT_H
#include FT_OUTLINE_H
+#include FT_CFF_DRIVER_H
#include "cffobjs.h"
#include "cffload.h"
#include "cffgload.h"
+#include "cf2ft.h" /* for cf2_decoder_parse_charstrings */
#include "cfferrs.h"
@@ -39,6 +41,8 @@
#define FT_COMPONENT trace_cffgload
+#ifdef CFF_CONFIG_OPTION_OLD_ENGINE
+
typedef enum CFF_Operator_
{
cff_op_unknown = 0,
@@ -209,6 +213,8 @@
2 /* setcurrentpoint */
};
+#endif /* CFF_CONFIG_OPTION_OLD_ENGINE */
+
/*************************************************************************/
/*************************************************************************/
@@ -412,7 +418,7 @@
CFF_Builder *builder = &decoder->builder;
CFF_Font cff = (CFF_Font)builder->face->extra.data;
CFF_SubFont sub = &cff->top_font;
- FT_Error error = CFF_Err_Ok;
+ FT_Error error = FT_Err_Ok;
/* manage CID fonts */
@@ -424,7 +430,7 @@
if ( fd_index >= cff->num_subfonts )
{
FT_TRACE4(( "cff_decoder_prepare: invalid CID subfont index\n" ));
- error = CFF_Err_Invalid_File_Format;
+ error = FT_THROW( Invalid_File_Format );
goto Exit;
}
@@ -455,22 +461,24 @@
decoder->glyph_width = sub->private_dict.default_width;
decoder->nominal_width = sub->private_dict.nominal_width;
+ decoder->current_subfont = sub; /* for Adobe's CFF handler */
+
Exit:
return error;
}
/* check that there is enough space for `count' more points */
- static FT_Error
- check_points( CFF_Builder* builder,
- FT_Int count )
+ FT_LOCAL_DEF( FT_Error )
+ cff_check_points( CFF_Builder* builder,
+ FT_Int count )
{
return FT_GLYPHLOADER_CHECK_POINTS( builder->loader, count, 0 );
}
/* add a new point, do not check space */
- static void
+ FT_LOCAL_DEF( void )
cff_builder_add_point( CFF_Builder* builder,
FT_Pos x,
FT_Pos y,
@@ -484,9 +492,22 @@
FT_Vector* point = outline->points + outline->n_points;
FT_Byte* control = (FT_Byte*)outline->tags + outline->n_points;
+#ifdef CFF_CONFIG_OPTION_OLD_ENGINE
+ CFF_Driver driver = (CFF_Driver)FT_FACE_DRIVER( builder->face );
+
- point->x = x >> 16;
- point->y = y >> 16;
+ if ( driver->hinting_engine == FT_CFF_HINTING_FREETYPE )
+ {
+ point->x = x >> 16;
+ point->y = y >> 16;
+ }
+ else
+#endif
+ {
+ /* cf2_decoder_parse_charstrings uses 16.16 coordinates */
+ point->x = x >> 10;
+ point->y = y >> 10;
+ }
*control = (FT_Byte)( flag ? FT_CURVE_TAG_ON : FT_CURVE_TAG_CUBIC );
}
@@ -495,7 +516,7 @@
/* check space for a new on-curve point, then add it */
- static FT_Error
+ FT_LOCAL_DEF( FT_Error )
cff_builder_add_point1( CFF_Builder* builder,
FT_Pos x,
FT_Pos y )
@@ -503,7 +524,7 @@
FT_Error error;
- error = check_points( builder, 1 );
+ error = cff_check_points( builder, 1 );
if ( !error )
cff_builder_add_point( builder, x, y, 1 );
@@ -522,7 +543,7 @@
if ( !builder->load_points )
{
outline->n_contours++;
- return CFF_Err_Ok;
+ return FT_Err_Ok;
}
error = FT_GLYPHLOADER_CHECK_POINTS( builder->loader, 0, 1 );
@@ -540,12 +561,12 @@
/* if a path was begun, add its first on-curve point */
- static FT_Error
+ FT_LOCAL_DEF( FT_Error )
cff_builder_start_point( CFF_Builder* builder,
FT_Pos x,
FT_Pos y )
{
- FT_Error error = CFF_Err_Ok;
+ FT_Error error = FT_Err_Ok;
/* test whether we are building a new contour */
@@ -562,7 +583,7 @@
/* close the current contour */
- static void
+ FT_LOCAL_DEF( void )
cff_builder_close_contour( CFF_Builder* builder )
{
FT_Outline* outline = builder->current;
@@ -607,7 +628,7 @@
}
- static FT_Int
+ FT_LOCAL_DEF( FT_Int )
cff_lookup_glyph_by_stdcharcode( CFF_Font cff,
FT_Int charcode )
{
@@ -636,7 +657,7 @@
}
- static FT_Error
+ FT_LOCAL_DEF( FT_Error )
cff_get_glyph_data( TT_Face face,
FT_UInt glyph_index,
FT_Byte** pointer,
@@ -672,7 +693,7 @@
}
- static void
+ FT_LOCAL_DEF( void )
cff_free_glyph_data( TT_Face face,
FT_Byte** pointer,
FT_ULong length )
@@ -707,6 +728,8 @@
}
+#ifdef CFF_CONFIG_OPTION_OLD_ENGINE
+
static FT_Error
cff_operator_seac( CFF_Decoder* decoder,
FT_Pos asb,
@@ -728,7 +751,7 @@
if ( decoder->seac )
{
FT_ERROR(( "cff_operator_seac: invalid nested seac\n" ));
- return CFF_Err_Syntax_Error;
+ return FT_THROW( Syntax_Error );
}
adx += decoder->builder.left_bearing.x;
@@ -756,7 +779,7 @@
{
FT_ERROR(( "cff_operator_seac:"
" invalid seac character code arguments\n" ));
- return CFF_Err_Syntax_Error;
+ return FT_THROW( Syntax_Error );
}
/* If we are trying to load a composite glyph, do not load the */
@@ -925,7 +948,7 @@
limit = zone->limit = charstring_base + charstring_len;
ip = zone->cursor = zone->base;
- error = CFF_Err_Ok;
+ error = FT_Err_Ok;
x = builder->pos_x;
y = builder->pos_y;
@@ -953,11 +976,14 @@
/* this is an operand, push it on the stack */
+
+ /* if we use shifts, all computations are done with unsigned */
+ /* values; the conversion to a signed value is the last step */
if ( v == 28 )
{
if ( ip + 1 >= limit )
goto Syntax_Error;
- val = (FT_Short)( ( (FT_Short)ip[0] << 8 ) | ip[1] );
+ val = (FT_Short)( ( (FT_UShort)ip[0] << 8 ) | ip[1] );
ip += 2;
}
else if ( v < 247 )
@@ -978,10 +1004,10 @@
{
if ( ip + 3 >= limit )
goto Syntax_Error;
- val = ( (FT_Int32)ip[0] << 24 ) |
- ( (FT_Int32)ip[1] << 16 ) |
- ( (FT_Int32)ip[2] << 8 ) |
- ip[3];
+ val = (FT_Int32)( ( (FT_UInt32)ip[0] << 24 ) |
+ ( (FT_UInt32)ip[1] << 16 ) |
+ ( (FT_UInt32)ip[2] << 8 ) |
+ (FT_UInt32)ip[3] );
ip += 4;
if ( charstring_type == 2 )
shift = 0;
@@ -989,12 +1015,12 @@
if ( decoder->top - stack >= CFF_MAX_OPERANDS )
goto Stack_Overflow;
- val <<= shift;
+ val = (FT_Int32)( (FT_UInt32)val << shift );
*decoder->top++ = val;
#ifdef FT_DEBUG_LEVEL_TRACE
if ( !( val & 0xFFFFL ) )
- FT_TRACE4(( " %ld", (FT_Int32)( val >> 16 ) ));
+ FT_TRACE4(( " %hd", (FT_Short)( (FT_UInt32)val >> 16 ) ));
else
FT_TRACE4(( " %.2f", val / 65536.0 ));
#endif
@@ -1411,8 +1437,8 @@
case cff_op_rlineto:
FT_TRACE4(( " rlineto\n" ));
- if ( cff_builder_start_point ( builder, x, y ) ||
- check_points( builder, num_args / 2 ) )
+ if ( cff_builder_start_point( builder, x, y ) ||
+ cff_check_points( builder, num_args / 2 ) )
goto Fail;
if ( num_args < 2 )
@@ -1446,8 +1472,8 @@
if ( num_args == 0 )
break;
- if ( cff_builder_start_point ( builder, x, y ) ||
- check_points( builder, num_args ) )
+ if ( cff_builder_start_point( builder, x, y ) ||
+ cff_check_points( builder, num_args ) )
goto Fail;
args = stack;
@@ -1480,8 +1506,8 @@
nargs = num_args - num_args % 6;
- if ( cff_builder_start_point ( builder, x, y ) ||
- check_points( builder, nargs / 2 ) )
+ if ( cff_builder_start_point( builder, x, y ) ||
+ cff_check_points( builder, nargs / 2 ) )
goto Fail;
args -= nargs;
@@ -1529,7 +1555,7 @@
nargs--;
}
- if ( check_points( builder, 3 * ( nargs / 4 ) ) )
+ if ( cff_check_points( builder, 3 * ( nargs / 4 ) ) )
goto Fail;
while ( args < decoder->top )
@@ -1573,7 +1599,7 @@
nargs--;
}
- if ( check_points( builder, 3 * ( nargs / 4 ) ) )
+ if ( cff_check_points( builder, 3 * ( nargs / 4 ) ) )
goto Fail;
while ( args < decoder->top )
@@ -1613,7 +1639,7 @@
nargs = num_args & ~2;
args -= nargs;
- if ( check_points( builder, ( nargs / 4 ) * 3 ) )
+ if ( cff_check_points( builder, ( nargs / 4 ) * 3 ) )
goto Stack_Underflow;
phase = ( op == cff_op_hvcurveto );
@@ -1666,8 +1692,8 @@
nargs = num_args & ~1;
num_lines = ( nargs - 6 ) / 2;
- if ( cff_builder_start_point( builder, x, y ) ||
- check_points( builder, num_lines + 3 ) )
+ if ( cff_builder_start_point( builder, x, y ) ||
+ cff_check_points( builder, num_lines + 3 ) )
goto Fail;
args -= nargs;
@@ -1711,8 +1737,8 @@
nargs = nargs - nargs % 6 + 2;
num_curves = ( nargs - 2 ) / 6;
- if ( cff_builder_start_point ( builder, x, y ) ||
- check_points( builder, num_curves * 3 + 2 ) )
+ if ( cff_builder_start_point( builder, x, y ) ||
+ cff_check_points( builder, num_curves * 3 + 2 ) )
goto Fail;
args -= nargs;
@@ -1752,7 +1778,7 @@
/* -- make sure we have enough space for the start point if it */
/* needs to be added */
if ( cff_builder_start_point( builder, x, y ) ||
- check_points( builder, 6 ) )
+ cff_check_points( builder, 6 ) )
goto Fail;
/* record the starting point's y position for later use */
@@ -1801,7 +1827,7 @@
/* adding six more points; 4 control points, 2 on-curve points */
if ( cff_builder_start_point( builder, x, y ) ||
- check_points( builder, 6 ) )
+ cff_check_points( builder, 6 ) )
goto Fail;
/* record the starting point's y-position for later use */
@@ -1854,7 +1880,7 @@
/* adding six more points; 4 control points, 2 on-curve points */
if ( cff_builder_start_point( builder, x, y ) ||
- check_points( builder, 6 ) )
+ cff_check_points( builder, 6 ) )
goto Fail;
/* record the starting point's x, y position for later use */
@@ -1917,7 +1943,7 @@
FT_TRACE4(( " flex\n" ));
if ( cff_builder_start_point( builder, x, y ) ||
- check_points( builder, 6 ) )
+ cff_check_points( builder, 6 ) )
goto Fail;
for ( count = 6; count > 0; count-- )
@@ -1968,7 +1994,7 @@
else
{
if ( !error )
- error = CFF_Err_Ok;
+ error = FT_Err_Ok;
cff_builder_close_contour( builder );
@@ -2470,7 +2496,7 @@
FT_ERROR(( " %d", ip[0] ));
FT_ERROR(( "\n" ));
- return CFF_Err_Unimplemented_Feature;
+ return FT_THROW( Unimplemented_Feature );
}
decoder->top = args;
@@ -2489,17 +2515,19 @@
Syntax_Error:
FT_TRACE4(( "cff_decoder_parse_charstrings: syntax error\n" ));
- return CFF_Err_Invalid_File_Format;
+ return FT_THROW( Invalid_File_Format );
Stack_Underflow:
FT_TRACE4(( "cff_decoder_parse_charstrings: stack underflow\n" ));
- return CFF_Err_Too_Few_Arguments;
+ return FT_THROW( Too_Few_Arguments );
Stack_Overflow:
FT_TRACE4(( "cff_decoder_parse_charstrings: stack overflow\n" ));
- return CFF_Err_Stack_Overflow;
+ return FT_THROW( Stack_Overflow );
}
+#endif /* CFF_CONFIG_OPTION_OLD_ENGINE */
+
/***************************************