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Code Issues 4 Releases Wiki Activity

Formatting, minor doc improvements.

This commit is contained in:
Werner Lemberg 2011-05-09 09:48:49 +02:00
parent 084abf0469
commit 27b20e9a1e
4 changed files with 171 additions and 151 deletions
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7
docs/CHANGES
View File

@ -16,10 +16,9 @@ CHANGES BETWEEN 2.4.4 and 2.4.5
redundant and is simply ignored; this means that FreeType now redundant and is simply ignored; this means that FreeType now
ignores the global advance width value in TrueType fonts. ignores the global advance width value in TrueType fonts.
- Just Fill Bugs contributed an experimental code to compute blue - Just Fill Bugs contributed (experimental) code to compute blue
zones for CJK Ideographs, to improve the alignment of horizontal zones for CJK Ideographs, improving the alignment of horizontal
stems at the top or bottom edges. Mainly tested with a TrueType stems at the top or bottom edges.
WenQuanYi-ZenHei.
III. MISCELLANEOUS III. MISCELLANEOUS

240
src/autofit/afcjk.c
View File

@ -62,7 +62,8 @@
/*************************************************************************/ /*************************************************************************/
/* Basically the Latin version with AF_CJKMetrics to replace AF_LatinMetrics */ /* Basically the Latin version with AF_CJKMetrics */
/* to replace AF_LatinMetrics. */
FT_LOCAL_DEF( void ) FT_LOCAL_DEF( void )
af_cjk_metrics_init_widths( AF_CJKMetrics metrics, af_cjk_metrics_init_widths( AF_CJKMetrics metrics,
@ -79,11 +80,11 @@
metrics->axis[AF_DIMENSION_VERT].width_count = 0; metrics->axis[AF_DIMENSION_VERT].width_count = 0;
{ {
FT_Error error; FT_Error error;
FT_UInt glyph_index; FT_UInt glyph_index;
int dim; int dim;
AF_CJKMetricsRec dummy[1]; AF_CJKMetricsRec dummy[1];
AF_Scaler scaler = &dummy->root.scaler; AF_Scaler scaler = &dummy->root.scaler;
glyph_index = FT_Get_Char_Index( face, charcode ); glyph_index = FT_Get_Char_Index( face, charcode );
@ -121,13 +122,11 @@
FT_UInt num_widths = 0; FT_UInt num_widths = 0;
error = af_latin_hints_compute_segments( hints, error = af_latin_hints_compute_segments( hints, (AF_Dimension)dim );
(AF_Dimension)dim );
if ( error ) if ( error )
goto Exit; goto Exit;
af_latin_hints_link_segments( hints, af_latin_hints_link_segments( hints, (AF_Dimension)dim );
(AF_Dimension)dim );
seg = axhints->segments; seg = axhints->segments;
limit = seg + axhints->num_segments; limit = seg + axhints->num_segments;
@ -155,16 +154,15 @@
axis->width_count = num_widths; axis->width_count = num_widths;
} }
Exit: Exit:
for ( dim = 0; dim < AF_DIMENSION_MAX; dim++ ) for ( dim = 0; dim < AF_DIMENSION_MAX; dim++ )
{ {
AF_CJKAxis axis = &metrics->axis[dim]; AF_CJKAxis axis = &metrics->axis[dim];
FT_Pos stdw; FT_Pos stdw;
stdw = ( axis->width_count > 0 ) stdw = ( axis->width_count > 0 ) ? axis->widths[0].org
? axis->widths[0].org : AF_LATIN_CONSTANT( metrics, 50 );
: AF_LATIN_CONSTANT( metrics, 50 );
/* let's try 20% of the smallest width */ /* let's try 20% of the smallest width */
axis->edge_distance_threshold = stdw / 5; axis->edge_distance_threshold = stdw / 5;
@ -177,13 +175,12 @@
} }
#define AF_CJK_MAX_TEST_CHARACTERS 32 #define AF_CJK_MAX_TEST_CHARACTERS 32
/* Every blue zone has 2 types of fill and unfill, /* Each blue zone has two types of fill and unfill, this is, */
* Which means fill the entire square or not. /* filling the entire glyph square or not. */
* */
enum enum
{ {
AF_CJK_BLUE_TYPE_FILL, AF_CJK_BLUE_TYPE_FILL,
@ -191,6 +188,7 @@
AF_CJK_BLUE_TYPE_MAX AF_CJK_BLUE_TYPE_MAX
}; };
/* Put some common and representative Han Ideographs characters here. */ /* Put some common and representative Han Ideographs characters here. */
static const FT_ULong af_cjk_hani_blue_chars[AF_CJK_BLUE_MAX] static const FT_ULong af_cjk_hani_blue_chars[AF_CJK_BLUE_MAX]
[AF_CJK_BLUE_TYPE_MAX] [AF_CJK_BLUE_TYPE_MAX]
@ -260,28 +258,32 @@
}; };
/* Calculate blue zones for all the CJK_BLUE_XXX's */ /* Calculate blue zones for all the CJK_BLUE_XXX's. */
static void static void
af_cjk_metrics_init_blues( AF_CJKMetrics metrics, af_cjk_metrics_init_blues( AF_CJKMetrics metrics,
FT_Face face, FT_Face face,
const FT_ULong blue_chars[AF_CJK_BLUE_MAX] const FT_ULong blue_chars
[AF_CJK_BLUE_TYPE_MAX] [AF_CJK_BLUE_MAX]
[AF_CJK_MAX_TEST_CHARACTERS] ) [AF_CJK_BLUE_TYPE_MAX]
[AF_CJK_MAX_TEST_CHARACTERS] )
{ {
FT_Pos fills[AF_CJK_MAX_TEST_CHARACTERS]; FT_Pos fills[AF_CJK_MAX_TEST_CHARACTERS];
FT_Pos flats[AF_CJK_MAX_TEST_CHARACTERS]; FT_Pos flats[AF_CJK_MAX_TEST_CHARACTERS];
FT_Int num_fills; FT_Int num_fills;
FT_Int num_flats; FT_Int num_flats;
FT_Int bb; FT_Int bb;
AF_CJKBlue blue; AF_CJKBlue blue;
FT_Error error; FT_Error error;
AF_CJKAxis axis; AF_CJKAxis axis;
FT_GlyphSlot glyph = face->glyph; FT_GlyphSlot glyph = face->glyph;
/* we compute the blues simply by loading each character from the */
/* 'blue_chars[blues]' string, then compute its extreme */ /* We compute the blues simply by loading each character from the */
/* points (depending blue zone type etc.) */ /* `blue_chars[blues]' string, then computing its extreme points */
/* (depending blue zone type etc.). */
FT_TRACE5(( "cjk blue zones computation\n" )); FT_TRACE5(( "cjk blue zones computation\n" ));
FT_TRACE5(( "------------------------------------------------\n" )); FT_TRACE5(( "------------------------------------------------\n" ));
@ -293,13 +295,15 @@
FT_Pos* blue_shoot; FT_Pos* blue_shoot;
num_fills = 0; num_fills = 0;
num_flats = 0; num_flats = 0;
for ( fill_type = 0 ; fill_type < AF_CJK_BLUE_TYPE_MAX; fill_type++)
for ( fill_type = 0; fill_type < AF_CJK_BLUE_TYPE_MAX; fill_type++ )
{ {
const FT_ULong* p = blue_chars[bb][fill_type]; const FT_ULong* p = blue_chars[bb][fill_type];
const FT_ULong* limit = p + AF_CJK_MAX_TEST_CHARACTERS; const FT_ULong* limit = p + AF_CJK_MAX_TEST_CHARACTERS;
FT_Bool fill = FT_BOOL( fill_type == AF_CJK_BLUE_TYPE_FILL ); FT_Bool fill = FT_BOOL(
fill_type == AF_CJK_BLUE_TYPE_FILL );
FT_TRACE5(( "cjk blue %3d/%d: ", bb, fill_type )); FT_TRACE5(( "cjk blue %3d/%d: ", bb, fill_type ));
@ -312,6 +316,7 @@
FT_Int best_point, best_first, best_last; FT_Int best_point, best_first, best_last;
FT_Vector* points; FT_Vector* points;
FT_TRACE5(( "0x%lX", *p )); FT_TRACE5(( "0x%lX", *p ));
/* load the character in the face -- skip unknown or empty ones */ /* load the character in the face -- skip unknown or empty ones */
@ -336,7 +341,9 @@
FT_Int last = -1; FT_Int last = -1;
for ( nn = 0; nn < glyph->outline.n_contours; first = last+1, nn++ ) for ( nn = 0;
nn < glyph->outline.n_contours;
first = last + 1, nn++ )
{ {
FT_Int old_best_point = best_point; FT_Int old_best_point = best_point;
FT_Int pp; FT_Int pp;
@ -344,49 +351,54 @@
last = glyph->outline.contours[nn]; last = glyph->outline.contours[nn];
/* Avoid single-point contours since they are never rasterized. */ /* Avoid single-point contours since they are never */
/* In some fonts, they correspond to mark attachment points */ /* rasterized. In some fonts, they correspond to mark */
/* which are way outside of the glyph's real outline. */ /* attachment points which are way outside of the glyph's */
/* real outline. */
if ( last <= first ) if ( last <= first )
continue; continue;
switch (bb) switch ( bb )
{ {
case AF_CJK_BLUE_TOP: case AF_CJK_BLUE_TOP:
for ( pp = first; pp <= last; pp++ ) for ( pp = first; pp <= last; pp++ )
if ( best_point < 0 || points[pp].y > best_pos ) if ( best_point < 0 || points[pp].y > best_pos )
{ {
best_point = pp; best_point = pp;
best_pos = points[pp].y; best_pos = points[pp].y;
} }
break; break;
case AF_CJK_BLUE_BOTTOM:
for ( pp = first; pp <= last; pp++ ) case AF_CJK_BLUE_BOTTOM:
if ( best_point < 0 || points[pp].y < best_pos ) for ( pp = first; pp <= last; pp++ )
{ if ( best_point < 0 || points[pp].y < best_pos )
best_point = pp; {
best_pos = points[pp].y; best_point = pp;
} best_pos = points[pp].y;
break; }
case AF_CJK_BLUE_LEFT: break;
for ( pp = first; pp <= last; pp++ )
if ( best_point < 0 || points[pp].x < best_pos ) case AF_CJK_BLUE_LEFT:
{ for ( pp = first; pp <= last; pp++ )
best_point = pp; if ( best_point < 0 || points[pp].x < best_pos )
best_pos = points[pp].x; {
} best_point = pp;
break; best_pos = points[pp].x;
case AF_CJK_BLUE_RIGHT: }
for ( pp = first; pp <= last; pp++ ) break;
if ( best_point < 0 || points[pp].x > best_pos )
{ case AF_CJK_BLUE_RIGHT:
best_point = pp; for ( pp = first; pp <= last; pp++ )
best_pos = points[pp].x; if ( best_point < 0 || points[pp].x > best_pos )
} {
break; best_point = pp;
default: best_pos = points[pp].x;
; }
} break;
default:
;
}
if ( best_point != old_best_point ) if ( best_point != old_best_point )
{ {
@ -397,7 +409,7 @@
FT_TRACE5(( "%5ld, ", best_pos )); FT_TRACE5(( "%5ld, ", best_pos ));
} }
if (fill) if ( fill )
fills[num_fills++] = best_pos; fills[num_fills++] = best_pos;
else else
flats[num_flats++] = best_pos; flats[num_flats++] = best_pos;
@ -406,7 +418,7 @@
FT_TRACE5(( "\n" )); FT_TRACE5(( "\n" ));
} }
if ( num_flats == 0 && num_fills == 0) if ( num_flats == 0 && num_fills == 0 )
{ {
/* /*
* we couldn't find a single glyph to compute this blue zone, * we couldn't find a single glyph to compute this blue zone,
@ -417,8 +429,8 @@
} }
/* we have computed the contents of the `fill' and `flats' tables, */ /* we have computed the contents of the `fill' and `flats' tables, */
/* now determine the reference position of the blue -- */ /* now determine the reference position of the blue -- */
/* we simply take the median value after a simple sort */ /* we simply take the median value after a simple sort */
af_sort_pos( num_flats, flats ); af_sort_pos( num_flats, flats );
af_sort_pos( num_fills, fills ); af_sort_pos( num_fills, fills );
@ -448,8 +460,8 @@
*blue_shoot = flats[num_flats / 2]; *blue_shoot = flats[num_flats / 2];
} }
/* make sure blue_ref >= blue_shoot for top/right or /* make sure blue_ref >= blue_shoot for top/right or */
* vis vesa for bottom/left. */ /* vice versa for bottom/left */
if ( *blue_shoot != *blue_ref ) if ( *blue_shoot != *blue_ref )
{ {
FT_Pos ref = *blue_ref; FT_Pos ref = *blue_ref;
@ -467,8 +479,10 @@
else if ( AF_CJK_BLUE_RIGHT == bb ) else if ( AF_CJK_BLUE_RIGHT == bb )
blue->flags |= AF_CJK_BLUE_IS_RIGHT; blue->flags |= AF_CJK_BLUE_IS_RIGHT;
FT_TRACE5(( "-- cjk ref = %ld shoot = %ld\n", *blue_ref, *blue_shoot )); FT_TRACE5(( "-- cjk ref = %ld shoot = %ld\n",
*blue_ref, *blue_shoot ));
} }
return; return;
} }
@ -580,8 +594,8 @@
/* scale the blue zones */ /* scale the blue zones */
for ( nn = 0; nn < axis->blue_count; nn++ ) for ( nn = 0; nn < axis->blue_count; nn++ )
{ {
AF_CJKBlue blue = &axis->blues[nn]; AF_CJKBlue blue = &axis->blues[nn];
FT_Pos dist; FT_Pos dist;
blue->ref.cur = FT_MulFix( blue->ref.org, scale ) + delta; blue->ref.cur = FT_MulFix( blue->ref.org, scale ) + delta;
@ -596,10 +610,11 @@
{ {
FT_Pos delta1, delta2; FT_Pos delta1, delta2;
blue->ref.fit = FT_PIX_ROUND( blue->ref.cur );
blue->ref.fit = FT_PIX_ROUND( blue->ref.cur );
/* shoot is under shoot for cjk */ /* shoot is under shoot for cjk */
delta1 = FT_DivFix(blue->ref.fit, scale) - blue->shoot.org; delta1 = FT_DivFix( blue->ref.fit, scale ) - blue->shoot.org;
delta2 = delta1; delta2 = delta1;
if ( delta1 < 0 ) if ( delta1 < 0 )
delta2 = -delta2; delta2 = -delta2;
@ -609,10 +624,10 @@
FT_TRACE5(( "delta: %d", delta1 )); FT_TRACE5(( "delta: %d", delta1 ));
if ( delta2 < 32 ) if ( delta2 < 32 )
delta2 = 0; delta2 = 0;
/* #if 0
else if ( delta2 < 64 ) else if ( delta2 < 64 )
delta2 = 32 + ( ( ( delta2 - 32 ) + 16 ) & ~31 ); delta2 = 32 + ( ( ( delta2 - 32 ) + 16 ) & ~31 );
*/ #endif
else else
delta2 = FT_PIX_ROUND( delta2 ); delta2 = FT_PIX_ROUND( delta2 );
FT_TRACE5(( "/%d\n", delta2 )); FT_TRACE5(( "/%d\n", delta2 ));
@ -624,10 +639,10 @@
FT_TRACE5(( ">> active cjk blue zone %c%d[%ld/%ld]: " FT_TRACE5(( ">> active cjk blue zone %c%d[%ld/%ld]: "
"ref: cur=%.2f fit=%.2f shoot: cur=%.2f fit=%.2f\n", "ref: cur=%.2f fit=%.2f shoot: cur=%.2f fit=%.2f\n",
( dim == AF_DIMENSION_HORZ ) ? 'H':'V', ( dim == AF_DIMENSION_HORZ ) ? 'H' : 'V',
nn, blue->ref.org, blue->shoot.org, nn, blue->ref.org, blue->shoot.org,
blue->ref.cur/64.0, blue->ref.fit/64.0, blue->ref.cur / 64.0, blue->ref.fit / 64.0,
blue->shoot.cur/64.0, blue->shoot.fit/64.0 )); blue->shoot.cur / 64.0, blue->shoot.fit / 64.0 ));
blue->flags |= AF_CJK_BLUE_ACTIVE; blue->flags |= AF_CJK_BLUE_ACTIVE;
} }
@ -1143,14 +1158,14 @@
FT_LOCAL_DEF( void ) FT_LOCAL_DEF( void )
af_cjk_hints_compute_blue_edges( AF_GlyphHints hints, af_cjk_hints_compute_blue_edges( AF_GlyphHints hints,
AF_CJKMetrics metrics, AF_CJKMetrics metrics,
AF_Dimension dim ) AF_Dimension dim )
{ {
AF_AxisHints axis = &hints->axis[ dim ]; AF_AxisHints axis = &hints->axis[dim];
AF_Edge edge = axis->edges; AF_Edge edge = axis->edges;
AF_Edge edge_limit = edge + axis->num_edges; AF_Edge edge_limit = edge + axis->num_edges;
AF_CJKAxis cjk = &metrics->axis[ dim ]; AF_CJKAxis cjk = &metrics->axis[dim];
FT_Fixed scale = cjk->scale; FT_Fixed scale = cjk->scale;
FT_Pos best_dist0; /* initial threshold */ FT_Pos best_dist0; /* initial threshold */
@ -1158,15 +1173,16 @@
/* compute the initial threshold as a fraction of the EM size */ /* compute the initial threshold as a fraction of the EM size */
best_dist0 = FT_MulFix( metrics->units_per_em / 40, scale ); best_dist0 = FT_MulFix( metrics->units_per_em / 40, scale );
if ( best_dist0 > 64 / 2 ) /* Maximum 1/2 pixel */ if ( best_dist0 > 64 / 2 ) /* maximum 1/2 pixel */
best_dist0 = 64 / 2; best_dist0 = 64 / 2;
/* compute which blue zones are active, i.e. have their scaled */ /* compute which blue zones are active, i.e. have their scaled */
/* size < 3/4 pixels */ /* size < 3/4 pixels */
/* If the distant between an edge and a blue zone is shorter than /* If the distant between an edge and a blue zone is shorter than */
* best_dist0, set the blue zone for the edge. Then search for /* best_dist0, set the blue zone for the edge. Then search for */
* the blue zone with the smallest best_dist to the edge. */ /* the blue zone with the smallest best_dist to the edge. */
for ( ; edge < edge_limit; edge++ ) for ( ; edge < edge_limit; edge++ )
{ {
FT_UInt bb; FT_UInt bb;
@ -1176,8 +1192,9 @@
for ( bb = 0; bb < cjk->blue_count; bb++ ) for ( bb = 0; bb < cjk->blue_count; bb++ )
{ {
AF_CJKBlue blue = cjk->blues + bb; AF_CJKBlue blue = cjk->blues + bb;
FT_Bool is_top_right_blue, is_major_dir; FT_Bool is_top_right_blue, is_major_dir;
/* skip inactive blue zones (i.e., those that are too small) */ /* skip inactive blue zones (i.e., those that are too small) */
if ( !( blue->flags & AF_CJK_BLUE_ACTIVE ) ) if ( !( blue->flags & AF_CJK_BLUE_ACTIVE ) )
@ -1187,8 +1204,9 @@
/* zone, check for left edges */ /* zone, check for left edges */
/* */ /* */
/* of course, that's for TrueType */ /* of course, that's for TrueType */
is_top_right_blue = FT_BOOL( ( ( blue->flags & AF_CJK_BLUE_IS_TOP ) != 0 ) || is_top_right_blue =
( ( blue->flags & AF_CJK_BLUE_IS_RIGHT ) != 0 ) ); FT_BOOL( ( ( blue->flags & AF_CJK_BLUE_IS_TOP ) != 0 ) ||
( ( blue->flags & AF_CJK_BLUE_IS_RIGHT ) != 0 ) );
is_major_dir = FT_BOOL( edge->dir == axis->major_dir ); is_major_dir = FT_BOOL( edge->dir == axis->major_dir );
/* if it is a top zone, the edge must be against the major */ /* if it is a top zone, the edge must be against the major */
@ -1208,7 +1226,7 @@
compare = &blue->ref; compare = &blue->ref;
dist = edge->fpos - compare->org; dist = edge->fpos - compare->org;
if (dist < 0) if ( dist < 0 )
dist = -dist; dist = -dist;
dist = FT_MulFix( dist, scale ); dist = FT_MulFix( dist, scale );
@ -1227,8 +1245,8 @@
FT_LOCAL_DEF( FT_Error ) FT_LOCAL_DEF( FT_Error )
af_cjk_hints_init( AF_GlyphHints hints, af_cjk_hints_init( AF_GlyphHints hints,
AF_CJKMetrics metrics ) AF_CJKMetrics metrics )
{ {
FT_Render_Mode mode; FT_Render_Mode mode;
FT_UInt32 scaler_flags, other_flags; FT_UInt32 scaler_flags, other_flags;
@ -1353,11 +1371,11 @@
AF_Edge_Flags base_flags, AF_Edge_Flags base_flags,
AF_Edge_Flags stem_flags ) AF_Edge_Flags stem_flags )
{ {
AF_CJKMetrics metrics = (AF_CJKMetrics) hints->metrics; AF_CJKMetrics metrics = (AF_CJKMetrics) hints->metrics;
AF_CJKAxis axis = & metrics->axis[dim]; AF_CJKAxis axis = & metrics->axis[dim];
FT_Pos dist = width; FT_Pos dist = width;
FT_Int sign = 0; FT_Int sign = 0;
FT_Bool vertical = FT_BOOL( dim == AF_DIMENSION_VERT ); FT_Bool vertical = FT_BOOL( dim == AF_DIMENSION_VERT );
FT_UNUSED( base_flags ); FT_UNUSED( base_flags );
FT_UNUSED( stem_flags ); FT_UNUSED( stem_flags );
@ -2073,9 +2091,9 @@
FT_LOCAL_DEF( FT_Error ) FT_LOCAL_DEF( FT_Error )
af_cjk_hints_apply( AF_GlyphHints hints, af_cjk_hints_apply( AF_GlyphHints hints,
FT_Outline* outline, FT_Outline* outline,
AF_CJKMetrics metrics ) AF_CJKMetrics metrics )
{ {
FT_Error error; FT_Error error;
int dim; int dim;

55
src/autofit/afcjk.h
View File

@ -4,7 +4,7 @@
/* */ /* */
/* Auto-fitter hinting routines for CJK script (specification). */ /* Auto-fitter hinting routines for CJK script (specification). */
/* */ /* */
/* Copyright 2006, 2007 by */ /* Copyright 2006, 2007, 2011 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */ /* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */ /* */
/* This file is part of the FreeType project, and may only be used, */ /* This file is part of the FreeType project, and may only be used, */
@ -33,9 +33,9 @@ FT_BEGIN_HEADER
/* CJK (global) metrics management */ /* CJK (global) metrics management */
/* /*
* CJK glyphs tend to fill the square. So we have both verticle and * CJK glyphs tend to fill the square. So we have both vertical and
* horizontal blue zones. But some glyphs have flat bounding stroke that * horizontal blue zones. But some glyphs have flat bounding strokes that
* leave some space between neighbour glyphs. * leave some space between neighbour glyphs.
*/ */
enum enum
{ {
@ -58,10 +58,11 @@ FT_BEGIN_HEADER
AF_CJK_BLUE_IS_TOP = 1 << 1, AF_CJK_BLUE_IS_TOP = 1 << 1,
AF_CJK_BLUE_IS_RIGHT = 1 << 2, AF_CJK_BLUE_IS_RIGHT = 1 << 2,
AF_CJK_BLUE_ADJUSTMENT = 1 << 3, /* used for scale adjustment */ AF_CJK_BLUE_ADJUSTMENT = 1 << 3, /* used for scale adjustment */
/* optimization */ /* optimization */
AF_CJK_BLUE_FLAG_MAX AF_CJK_BLUE_FLAG_MAX
}; };
typedef struct AF_CJKBlueRec_ typedef struct AF_CJKBlueRec_
{ {
AF_WidthRec ref; AF_WidthRec ref;
@ -70,24 +71,25 @@ FT_BEGIN_HEADER
} AF_CJKBlueRec, *AF_CJKBlue; } AF_CJKBlueRec, *AF_CJKBlue;
typedef struct AF_CJKAxisRec_ typedef struct AF_CJKAxisRec_
{ {
FT_Fixed scale; FT_Fixed scale;
FT_Pos delta; FT_Pos delta;
FT_UInt width_count; FT_UInt width_count;
AF_WidthRec widths[AF_CJK_MAX_WIDTHS]; AF_WidthRec widths[AF_CJK_MAX_WIDTHS];
FT_Pos edge_distance_threshold; FT_Pos edge_distance_threshold;
FT_Pos standard_width; FT_Pos standard_width;
FT_Bool extra_light; FT_Bool extra_light;
/* used for horizontal metrics too for CJK */ /* used for horizontal metrics too for CJK */
FT_Bool control_overshoot; FT_Bool control_overshoot;
FT_UInt blue_count; FT_UInt blue_count;
AF_CJKBlueRec blues[AF_CJK_BLUE_MAX]; AF_CJKBlueRec blues[AF_CJK_BLUE_MAX];
FT_Fixed org_scale; FT_Fixed org_scale;
FT_Pos org_delta; FT_Pos org_delta;
} AF_CJKAxisRec, *AF_CJKAxis; } AF_CJKAxisRec, *AF_CJKAxis;
@ -100,22 +102,23 @@ FT_BEGIN_HEADER
} AF_CJKMetricsRec, *AF_CJKMetrics; } AF_CJKMetricsRec, *AF_CJKMetrics;
FT_LOCAL( FT_Error ) FT_LOCAL( FT_Error )
af_cjk_metrics_init( AF_CJKMetrics metrics, af_cjk_metrics_init( AF_CJKMetrics metrics,
FT_Face face ); FT_Face face );
FT_LOCAL( void ) FT_LOCAL( void )
af_cjk_metrics_scale( AF_CJKMetrics metrics, af_cjk_metrics_scale( AF_CJKMetrics metrics,
AF_Scaler scaler ); AF_Scaler scaler );
FT_LOCAL( FT_Error ) FT_LOCAL( FT_Error )
af_cjk_hints_init( AF_GlyphHints hints, af_cjk_hints_init( AF_GlyphHints hints,
AF_CJKMetrics metrics ); AF_CJKMetrics metrics );
FT_LOCAL( FT_Error ) FT_LOCAL( FT_Error )
af_cjk_hints_apply( AF_GlyphHints hints, af_cjk_hints_apply( AF_GlyphHints hints,
FT_Outline* outline, FT_Outline* outline,
AF_CJKMetrics metrics ); AF_CJKMetrics metrics );
/* Shared. called from afindic.c */ /* Shared. called from afindic.c */
FT_LOCAL( void ) FT_LOCAL( void )

20
src/autofit/afindic.c
View File

@ -33,8 +33,8 @@
static FT_Error static FT_Error
af_indic_metrics_init( AF_CJKMetrics metrics, af_indic_metrics_init( AF_CJKMetrics metrics,
FT_Face face ) FT_Face face )
{ {
/* skip blue zone init in CJK routines */ /* skip blue zone init in CJK routines */
FT_CharMap oldmap = face->charmap; FT_CharMap oldmap = face->charmap;
@ -48,7 +48,7 @@
{ {
af_cjk_metrics_init_widths( metrics, face, 0x7530 ); af_cjk_metrics_init_widths( metrics, face, 0x7530 );
#if 0 #if 0
/* either need indic specific blue_chars[] or just skip blue zones. */ /* either need indic specific blue_chars[] or just skip blue zones */
af_cjk_metrics_init_blues( metrics, face, af_cjk_blue_chars ); af_cjk_metrics_init_blues( metrics, face, af_cjk_blue_chars );
#endif #endif
af_cjk_metrics_check_digits( metrics, face ); af_cjk_metrics_check_digits( metrics, face );
@ -61,8 +61,8 @@
static void static void
af_indic_metrics_scale( AF_CJKMetrics metrics, af_indic_metrics_scale( AF_CJKMetrics metrics,
AF_Scaler scaler ) AF_Scaler scaler )
{ {
/* use CJK routines */ /* use CJK routines */
af_cjk_metrics_scale( metrics, scaler ); af_cjk_metrics_scale( metrics, scaler );
@ -70,8 +70,8 @@
static FT_Error static FT_Error
af_indic_hints_init( AF_GlyphHints hints, af_indic_hints_init( AF_GlyphHints hints,
AF_CJKMetrics metrics ) AF_CJKMetrics metrics )
{ {
/* use CJK routines */ /* use CJK routines */
return af_cjk_hints_init( hints, metrics ); return af_cjk_hints_init( hints, metrics );
@ -79,9 +79,9 @@
static FT_Error static FT_Error
af_indic_hints_apply( AF_GlyphHints hints, af_indic_hints_apply( AF_GlyphHints hints,
FT_Outline* outline, FT_Outline* outline,
AF_CJKMetrics metrics) AF_CJKMetrics metrics )
{ {
/* use CJK routines */ /* use CJK routines */
return af_cjk_hints_apply( hints, outline, metrics ); return af_cjk_hints_apply( hints, outline, metrics );