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-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
21 files changed, 1039 insertions, 513 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; \
\
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-27 13:33:23 +0000