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-rw-r--r--src/autofit/aflatin.c275
1 files changed, 171 insertions, 104 deletions
diff --git a/src/autofit/aflatin.c b/src/autofit/aflatin.c
index 99e8827b..310af8d5 100644
--- a/src/autofit/aflatin.c
+++ b/src/autofit/aflatin.c
@@ -36,6 +36,10 @@
/*************************************************************************/
/*************************************************************************/
+
+ /* Find segments and links, compute all stem widths, and initialize */
+ /* standard width and height for the glyph with given charcode. */
+
FT_LOCAL_DEF( void )
af_latin_metrics_init_widths( AF_LatinMetrics metrics,
FT_Face face,
@@ -69,8 +73,12 @@
FT_ZERO( dummy );
dummy->units_per_em = metrics->units_per_em;
- scaler->x_scale = scaler->y_scale = 0x10000L;
- scaler->x_delta = scaler->y_delta = 0;
+
+ scaler->x_scale = 0x10000L;
+ scaler->y_scale = 0x10000L;
+ scaler->x_delta = 0;
+ scaler->y_delta = 0;
+
scaler->face = face;
scaler->render_mode = FT_RENDER_MODE_NORMAL;
scaler->flags = 0;
@@ -161,6 +169,9 @@
};
+ /* Find all blue zones. Flat segments give the reference points, */
+ /* round segments the overshoot positions. */
+
static void
af_latin_metrics_init_blues( AF_LatinMetrics metrics,
FT_Face face )
@@ -177,7 +188,7 @@
/* we compute the blues simply by loading each character from the */
- /* 'af_latin_blue_chars[blues]' string, then compute its top-most or */
+ /* `af_latin_blue_chars[blues]' string, then finding its top-most or */
/* bottom-most points (depending on `AF_IS_TOP_BLUE') */
AF_LOG(( "blue zones computation\n" ));
@@ -199,7 +210,7 @@
for ( ; p < limit && *p; p++ )
{
FT_UInt glyph_index;
- FT_Pos best_y; /* same as points.y */
+ FT_Pos best_y; /* same as points.y */
FT_Int best_point, best_first, best_last;
FT_Vector* points;
FT_Bool round = 0;
@@ -229,7 +240,9 @@
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 pp;
@@ -241,7 +254,7 @@
/* In some fonts, they correspond to mark attachment points */
/* which are way outside of the glyph's real outline. */
if ( last <= first )
- continue;
+ continue;
if ( AF_LATIN_IS_TOP_BLUE( bb ) )
{
@@ -311,7 +324,7 @@
} while ( next != best_point );
- /* now, set the `round' flag depending on the segment's kind */
+ /* 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 );
@@ -343,9 +356,9 @@
af_sort_pos( num_rounds, rounds );
af_sort_pos( num_flats, flats );
- blue = & axis->blues[axis->blue_count];
- blue_ref = & blue->ref.org;
- blue_shoot = & blue->shoot.org;
+ blue = &axis->blues[axis->blue_count];
+ blue_ref = &blue->ref.org;
+ blue_shoot = &blue->shoot.org;
axis->blue_count++;
@@ -376,7 +389,8 @@
if ( AF_LATIN_IS_TOP_BLUE( bb ) ^ over_ref )
- *blue_shoot = *blue_ref = ( shoot + ref ) / 2;
+ *blue_ref =
+ *blue_shoot = ( shoot + ref ) / 2;
}
blue->flags = 0;
@@ -398,6 +412,8 @@
}
+ /* Check whether all ASCII digits have the same advance width. */
+
FT_LOCAL_DEF( void )
af_latin_metrics_check_digits( AF_LatinMetrics metrics,
FT_Face face )
@@ -407,8 +423,7 @@
FT_Fixed advance, old_advance = 0;
- /* check whether all ASCII digits have the same advance width; */
- /* digit `0' is 0x30 in all supported charmaps */
+ /* digit `0' is 0x30 in all supported charmaps */
for ( i = 0x30; i <= 0x39; i++ )
{
FT_UInt glyph_index;
@@ -444,6 +459,8 @@
}
+ /* Initialize global metrics. */
+
FT_LOCAL_DEF( FT_Error )
af_latin_metrics_init( AF_LatinMetrics metrics,
FT_Face face )
@@ -458,6 +475,7 @@
FT_ENCODING_APPLE_ROMAN,
FT_ENCODING_ADOBE_STANDARD,
FT_ENCODING_ADOBE_LATIN_1,
+
FT_ENCODING_NONE /* end of list */
};
@@ -485,6 +503,9 @@
}
+ /* Adjust scaling value, then scale and shift widths */
+ /* and blue zones (if applicable) for given dimension. */
+
static void
af_latin_metrics_scale_dim( AF_LatinMetrics metrics,
AF_Scaler scaler,
@@ -550,9 +571,7 @@
else
#endif
if ( dim == AF_DIMENSION_VERT )
- {
scale = FT_MulDiv( scale, fitted, scaled );
- }
}
}
}
@@ -571,7 +590,7 @@
metrics->root.scaler.y_delta = delta;
}
- /* scale the standard widths */
+ /* scale the widths */
for ( nn = 0; nn < axis->width_count; nn++ )
{
AF_Width width = axis->widths + nn;
@@ -635,6 +654,8 @@
}
+ /* Scale global values in both directions. */
+
FT_LOCAL_DEF( void )
af_latin_metrics_scale( AF_LatinMetrics metrics,
AF_Scaler scaler )
@@ -655,18 +676,21 @@
/*************************************************************************/
/*************************************************************************/
+
+ /* Walk over all contours and compute its segments. */
+
FT_LOCAL_DEF( FT_Error )
af_latin_hints_compute_segments( AF_GlyphHints hints,
AF_Dimension dim )
{
- AF_AxisHints axis = &hints->axis[dim];
- FT_Memory memory = hints->memory;
- FT_Error error = AF_Err_Ok;
- AF_Segment segment = NULL;
- AF_SegmentRec seg0;
- AF_Point* contour = hints->contours;
- AF_Point* contour_limit = contour + hints->num_contours;
- AF_Direction major_dir, segment_dir;
+ AF_AxisHints axis = &hints->axis[dim];
+ FT_Memory memory = hints->memory;
+ FT_Error error = AF_Err_Ok;
+ AF_Segment segment = NULL;
+ AF_SegmentRec seg0;
+ AF_Point* contour = hints->contours;
+ AF_Point* contour_limit = contour + hints->num_contours;
+ AF_Direction major_dir, segment_dir;
FT_ZERO( &seg0 );
@@ -762,7 +786,7 @@
/* a segment is round if either its first or last point */
/* is a control point */
if ( ( segment->first->flags | point->flags ) &
- AF_FLAG_CONTROL )
+ AF_FLAG_CONTROL )
segment->flags |= AF_EDGE_ROUND;
/* compute segment size */
@@ -874,6 +898,8 @@
}
+ /* Link segments to form stems and serifs. */
+
FT_LOCAL_DEF( void )
af_latin_hints_link_segments( AF_GlyphHints hints,
AF_Dimension dim )
@@ -899,6 +925,8 @@
if ( seg1->dir != axis->major_dir || seg1->first == seg1->last )
continue;
+ /* search for stems having opposite directions, */
+ /* with seg1 to the `left' of seg2 */
for ( seg2 = segments; seg2 < segment_limit; seg2++ )
{
FT_Pos pos1 = seg1->pos;
@@ -907,6 +935,7 @@
if ( seg1->dir + seg2->dir == 0 && pos2 > pos1 )
{
+ /* compute distance between the two segments */
FT_Pos dist = pos2 - pos1;
FT_Pos min = seg1->min_coord;
FT_Pos max = seg1->max_coord;
@@ -919,11 +948,16 @@
if ( max > seg2->max_coord )
max = seg2->max_coord;
+ /* compute maximum coordinate difference of the two segments */
len = max - min;
if ( len >= len_threshold )
{
+ /* small coordinate differences cause a higher score, and */
+ /* segments with a greater distance cause a higher score also */
score = dist + len_score / len;
+ /* and we search for the smallest score */
+ /* of the sum of the two values */
if ( score < seg1->score )
{
seg1->score = score;
@@ -940,7 +974,7 @@
}
}
- /* now, compute the `serif' segments */
+ /* now compute the `serif' segments, cf. explanations in `afhints.h' */
for ( seg1 = segments; seg1 < segment_limit; seg1++ )
{
seg2 = seg1->link;
@@ -957,6 +991,8 @@
}
+ /* Link segments to edges, using feature analysis for selection. */
+
FT_LOCAL_DEF( FT_Error )
af_latin_hints_compute_edges( AF_GlyphHints hints,
AF_Dimension dim )
@@ -985,7 +1021,7 @@
: AF_DIR_RIGHT;
/*
- * We ignore all segments that are less than 1 pixels in length,
+ * We ignore all segments that are less than 1 pixel in length
* to avoid many problems with serif fonts. We compute the
* corresponding threshold in font units.
*/
@@ -996,20 +1032,21 @@
/*********************************************************************/
/* */
- /* We will begin by generating a sorted table of edges for the */
- /* current direction. To do so, we simply scan each segment and try */
- /* to find an edge in our table that corresponds to its position. */
+ /* We begin by generating a sorted table of edges for the current */
+ /* direction. To do so, we simply scan each segment and try to find */
+ /* an edge in our table that corresponds to its position. */
/* */
/* If no edge is found, we create and insert a new edge in the */
/* sorted table. Otherwise, we simply add the segment to the edge's */
- /* list which will be processed in the second step to compute the */
+ /* list which gets processed in the second step to compute the */
/* edge's properties. */
/* */
- /* Note that the edges table is sorted along the segment/edge */
+ /* Note that the table of edges is sorted along the segment/edge */
/* position. */
/* */
/*********************************************************************/
+ /* assure that edge distance threshold is at least 0.25px */
edge_distance_threshold = FT_MulFix( laxis->edge_distance_threshold,
scale );
if ( edge_distance_threshold > 64 / 4 )
@@ -1020,7 +1057,7 @@
for ( seg = segments; seg < segment_limit; seg++ )
{
- AF_Edge found = 0;
+ AF_Edge found = NULL;
FT_Int ee;
@@ -1069,9 +1106,10 @@
edge->first = seg;
edge->last = seg;
- edge->fpos = seg->pos;
edge->dir = seg->dir;
- edge->opos = edge->pos = FT_MulFix( seg->pos, scale );
+ edge->fpos = seg->pos;
+ edge->opos = FT_MulFix( seg->pos, scale );
+ edge->pos = edge->opos;
seg->edge_next = seg;
}
else
@@ -1088,9 +1126,9 @@
/*********************************************************************/
/* */
/* Good, we will now compute each edge's properties according to */
- /* segments found on its position. Basically, these are: */
+ /* the segments found on its position. Basically, these are */
/* */
- /* - edge's main direction */
+ /* - 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 */
@@ -1123,7 +1161,7 @@
} while ( seg != edge->first );
}
- /* now, compute each edge properties */
+ /* now compute each edge properties */
for ( edge = edges; edge < edge_limit; edge++ )
{
FT_Int is_round = 0; /* does it contain round segments? */
@@ -1150,9 +1188,9 @@
#if 0
/* check for segment direction */
if ( seg->dir == up_dir )
- ups += seg->max_coord-seg->min_coord;
+ ups += seg->max_coord - seg->min_coord;
else
- downs += seg->max_coord-seg->min_coord;
+ downs += seg->max_coord - seg->min_coord;
#endif
/* check for links -- if seg->serif is set, then seg->link must */
@@ -1229,7 +1267,7 @@
edge->dir = 0; /* both up and down! */
#endif
- /* gets rid of serifs if link is set */
+ /* get rid of serifs if link is set */
/* XXX: This gets rid of many unpleasant artefacts! */
/* Example: the `c' in cour.pfa at size 13 */
@@ -1243,6 +1281,8 @@
}
+ /* Detect segments and edges for given dimension. */
+
FT_LOCAL_DEF( FT_Error )
af_latin_hints_detect_features( AF_GlyphHints hints,
AF_Dimension dim )
@@ -1257,10 +1297,13 @@
error = af_latin_hints_compute_edges( hints, dim );
}
+
return error;
}
+ /* Compute all edges which lie within blue zones. */
+
FT_LOCAL_DEF( void )
af_latin_hints_compute_blue_edges( AF_GlyphHints hints,
AF_LatinMetrics metrics )
@@ -1284,8 +1327,10 @@
/* compute the initial threshold as a fraction of the EM size */
+ /* (the value 40 is heuristic) */
best_dist = FT_MulFix( metrics->units_per_em / 40, scale );
+ /* assure a minumum distance of 0.5px */
if ( best_dist > 64 / 2 )
best_dist = 64 / 2;
@@ -1295,7 +1340,7 @@
FT_Bool is_top_blue, is_major_dir;
- /* skip inactive blue zones (i.e., those that are too small) */
+ /* skip inactive blue zones (i.e., those that are too large) */
if ( !( blue->flags & AF_LATIN_BLUE_ACTIVE ) )
continue;
@@ -1323,12 +1368,13 @@
if ( dist < best_dist )
{
best_dist = dist;
- best_blue = & blue->ref;
+ best_blue = &blue->ref;
}
- /* now, compare it to the overshoot position if the edge is */
- /* rounded, and if the edge is over the reference position of a */
- /* top zone, or under the reference position of a bottom zone */
+ /* now compare it to the overshoot position and check whether */
+ /* the edge is rounded, and whether the edge is over the */
+ /* reference position of a top zone, or under the reference */
+ /* position of a bottom zone */
if ( edge->flags & AF_EDGE_ROUND && dist != 0 )
{
FT_Bool is_under_ref = FT_BOOL( edge->fpos < blue->ref.org );
@@ -1344,7 +1390,7 @@
if ( dist < best_dist )
{
best_dist = dist;
- best_blue = & blue->shoot;
+ best_blue = &blue->shoot;
}
}
}
@@ -1357,6 +1403,8 @@
}
+ /* Initalize hinting engine. */
+
static FT_Error
af_latin_hints_init( AF_GlyphHints hints,
AF_LatinMetrics metrics )
@@ -1370,7 +1418,7 @@
/*
* correct x_scale and y_scale if needed, since they may have
- * been modified `af_latin_metrics_scale_dim' above
+ * been modified by `af_latin_metrics_scale_dim' above
*/
hints->x_scale = metrics->axis[AF_DIMENSION_HORZ].scale;
hints->x_delta = metrics->axis[AF_DIMENSION_HORZ].delta;
@@ -1417,8 +1465,8 @@
* 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;
@@ -1436,8 +1484,8 @@
/*************************************************************************/
/*************************************************************************/
- /* snap a given width in scaled coordinates to one of the */
- /* current standard widths */
+ /* Snap a given width in scaled coordinates to one of the */
+ /* current standard widths. */
static FT_Pos
af_latin_snap_width( AF_Width widths,
@@ -1484,7 +1532,9 @@
}
- /* compute the snapped width of a given stem */
+ /* Compute the snapped width of a given stem, ignoring very thin ones. */
+ /* There is a lot of voodoo in this function; changing the hard-coded */
+ /* parameters influence the whole hinting process. */
static FT_Pos
af_latin_compute_stem_width( AF_GlyphHints hints,
@@ -1501,7 +1551,7 @@
if ( !AF_LATIN_HINTS_DO_STEM_ADJUST( hints ) ||
- axis->extra_light )
+ axis->extra_light )
return width;
if ( dist < 0 )
@@ -1516,8 +1566,9 @@
/* smooth hinting process: very lightly quantize the stem width */
/* leave the widths of serifs alone */
-
- if ( ( stem_flags & AF_EDGE_SERIF ) && vertical && ( dist < 3 * 64 ) )
+ if ( ( stem_flags & AF_EDGE_SERIF ) &&
+ vertical &&
+ ( dist < 3 * 64 ) )
goto Done_Width;
else if ( ( base_flags & AF_EDGE_ROUND ) )
@@ -1572,6 +1623,7 @@
else
{
/* strong hinting process: snap the stem width to integer pixels */
+
FT_Pos org_dist = dist;
@@ -1646,7 +1698,7 @@
}
- /* align one stem edge relative to the previous stem edge */
+ /* Align one stem edge relative to the previous stem edge. */
static void
af_latin_align_linked_edge( AF_GlyphHints hints,
@@ -1664,13 +1716,16 @@
stem_edge->pos = base_edge->pos + fitted_width;
- AF_LOG(( "LINK: edge %d (opos=%.2f) linked to (%.2f), "
- "dist was %.2f, now %.2f\n",
+ AF_LOG(( "LINK: edge %d (opos=%.2f) linked to (%.2f),"
+ " dist was %.2f, now %.2f\n",
stem_edge-hints->axis[dim].edges, stem_edge->opos / 64.0,
stem_edge->pos / 64.0, dist / 64.0, fitted_width / 64.0 ));
}
+ /* Shift the coordinates of the `serif' edge by the same amount */
+ /* as the corresponding `base' edge has been moved already. */
+
static void
af_latin_align_serif_edge( AF_GlyphHints hints,
AF_Edge base,
@@ -1678,7 +1733,7 @@
{
FT_UNUSED( hints );
- serif->pos = base->pos + (serif->opos - base->opos);
+ serif->pos = base->pos + ( serif->opos - base->opos );
}
@@ -1693,6 +1748,8 @@
/*************************************************************************/
+ /* The main grid-fitting routine. */
+
FT_LOCAL_DEF( void )
af_latin_hint_edges( AF_GlyphHints hints,
AF_Dimension dim )
@@ -1702,7 +1759,7 @@
AF_Edge edge_limit = edges + axis->num_edges;
FT_PtrDist n_edges;
AF_Edge edge;
- AF_Edge anchor = 0;
+ AF_Edge anchor = NULL;
FT_Int has_serifs = 0;
@@ -1725,9 +1782,8 @@
edge2 = edge->link;
if ( blue )
- {
edge1 = edge;
- }
+
else if ( edge2 && edge2->blue_edge )
{
blue = edge2->blue_edge;
@@ -1738,9 +1794,9 @@
if ( !edge1 )
continue;
- AF_LOG(( "BLUE: edge %d (opos=%.2f) snapped to (%.2f), "
- "was (%.2f)\n",
- edge1-edges, edge1->opos / 64.0, blue->fit / 64.0,
+ AF_LOG(( "BLUE: edge %d (opos=%.2f) snapped to (%.2f),"
+ " was (%.2f)\n",
+ edge1 - edges, edge1->opos / 64.0, blue->fit / 64.0,
edge1->pos / 64.0 ));
edge1->pos = blue->fit;
@@ -1757,8 +1813,8 @@
}
}
- /* now we will align all stem edges, trying to maintain the */
- /* relative order of stems in the glyph */
+ /* now we align all stem edges, trying to maintain the */
+ /* relative order of stems in the glyph */
for ( edge = edges; edge < edge_limit; edge++ )
{
AF_Edge edge2;
@@ -1798,8 +1854,13 @@
hints, dim, org_len,
(AF_Edge_Flags)edge->flags,
(AF_Edge_Flags)edge2->flags );
+
+ /* some voodoo to specially round edges for small stem widths */
if ( cur_len <= 64 )
- u_off = d_off = 32;
+ {
+ u_off = 32;
+ d_off = 32;
+ }
else
{
u_off = 38;
@@ -1809,7 +1870,6 @@
if ( cur_len < 96 )
{
org_center = edge->opos + ( org_len >> 1 );
-
cur_pos1 = FT_PIX_ROUND( org_center );
error1 = org_center - ( cur_pos1 - u_off );
@@ -1831,10 +1891,10 @@
else
edge->pos = FT_PIX_ROUND( edge->opos );
- AF_LOG(( "ANCHOR: edge %d (opos=%.2f) and %d (opos=%.2f) "
- "snapped to (%.2f) (%.2f)\n",
- edge-edges, edge->opos / 64.0,
- edge2-edges, edge2->opos / 64.0,
+ AF_LOG(( "ANCHOR: edge %d (opos=%.2f) and %d (opos=%.2f)"
+ " snapped to (%.2f) (%.2f)\n",
+ edge - edges, edge->opos / 64.0,
+ edge2 - edges, edge2->opos / 64.0,
edge->pos / 64.0, edge2->pos / 64.0 ));
anchor = edge;
@@ -1853,9 +1913,9 @@
org_center = org_pos + ( org_len >> 1 );
cur_len = af_latin_compute_stem_width(
- hints, dim, org_len,
- (AF_Edge_Flags)edge->flags,
- (AF_Edge_Flags)edge2->flags );
+ hints, dim, org_len,
+ (AF_Edge_Flags)edge->flags,
+ (AF_Edge_Flags)edge2->flags );
if ( edge2->flags & AF_EDGE_DONE )
edge->pos = edge2->pos - cur_len;
@@ -1868,7 +1928,10 @@
cur_pos1 = FT_PIX_ROUND( org_center );
if (cur_len <= 64 )
- u_off = d_off = 32;
+ {
+ u_off = 32;
+ d_off = 32;
+ }
else
{
u_off = 38;
@@ -1891,10 +1954,10 @@
edge->pos = cur_pos1 - cur_len / 2;
edge2->pos = cur_pos1 + cur_len / 2;
- AF_LOG(( "STEM: %d (opos=%.2f) to %d (opos=%.2f) "
- "snapped to (%.2f) and (%.2f)\n",
- edge-edges, edge->opos / 64.0,
- edge2-edges, edge2->opos / 64.0,
+ AF_LOG(( "STEM: %d (opos=%.2f) to %d (opos=%.2f)"
+ " snapped to (%.2f) and (%.2f)\n",
+ edge - edges, edge->opos / 64.0,
+ edge2 - edges, edge2->opos / 64.0,
edge->pos / 64.0, edge2->pos / 64.0 ));
}
else
@@ -1908,23 +1971,23 @@
(AF_Edge_Flags)edge->flags,
(AF_Edge_Flags)edge2->flags );
- cur_pos1 = FT_PIX_ROUND( org_pos );
- delta1 = cur_pos1 + ( cur_len >> 1 ) - org_center;
+ cur_pos1 = FT_PIX_ROUND( org_pos );
+ delta1 = cur_pos1 + ( cur_len >> 1 ) - org_center;
if ( delta1 < 0 )
delta1 = -delta1;
- cur_pos2 = FT_PIX_ROUND( org_pos + org_len ) - cur_len;
- delta2 = cur_pos2 + ( cur_len >> 1 ) - org_center;
+ cur_pos2 = FT_PIX_ROUND( org_pos + org_len ) - cur_len;
+ delta2 = cur_pos2 + ( cur_len >> 1 ) - org_center;
if ( delta2 < 0 )
delta2 = -delta2;
edge->pos = ( delta1 < delta2 ) ? cur_pos1 : cur_pos2;
edge2->pos = edge->pos + cur_len;
- AF_LOG(( "STEM: %d (opos=%.2f) to %d (opos=%.2f) "
- "snapped to (%.2f) and (%.2f)\n",
- edge-edges, edge->opos / 64.0,
- edge2-edges, edge2->opos / 64.0,
+ AF_LOG(( "STEM: %d (opos=%.2f) to %d (opos=%.2f)"
+ " snapped to (%.2f) and (%.2f)\n",
+ edge - edges, edge->opos / 64.0,
+ edge2 - edges, edge2->opos / 64.0,
edge->pos / 64.0, edge2->pos / 64.0 ));
}
@@ -1934,7 +1997,7 @@
if ( edge > edges && edge->pos < edge[-1].pos )
{
AF_LOG(( "BOUND: %d (pos=%.2f) to (%.2f)\n",
- edge-edges, edge->pos / 64.0, edge[-1].pos / 64.0 ));
+ edge - edges, edge->pos / 64.0, edge[-1].pos / 64.0 ));
edge->pos = edge[-1].pos;
}
}
@@ -2028,9 +2091,9 @@
if ( delta < 64 + 16 )
{
af_latin_align_serif_edge( hints, edge->serif, edge );
- AF_LOG(( "SERIF: edge %d (opos=%.2f) serif to %d (opos=%.2f) "
- "aligned to (%.2f)\n",
- edge-edges, edge->opos / 64.0,
+ AF_LOG(( "SERIF: edge %d (opos=%.2f) serif to %d (opos=%.2f)"
+ " aligned to (%.2f)\n",
+ edge - edges, edge->opos / 64.0,
edge->serif - edges, edge->serif->opos / 64.0,
edge->pos / 64.0 ));
}
@@ -2064,18 +2127,20 @@
FT_MulDiv( edge->opos - before->opos,
after->pos - before->pos,
after->opos - before->opos );
- AF_LOG(( "SERIF_LINK1: edge %d (opos=%.2f) snapped to (%.2f) "
- "from %d (opos=%.2f)\n",
- edge-edges, edge->opos / 64.0,
- edge->pos / 64.0, before - edges,
- before->opos / 64.0 ));
+
+ AF_LOG(( "SERIF_LINK1: edge %d (opos=%.2f) snapped to (%.2f)"
+ " from %d (opos=%.2f)\n",
+ edge - edges, edge->opos / 64.0,
+ edge->pos / 64.0,
+ before - edges, before->opos / 64.0 ));
}
else
{
edge->pos = anchor->pos +
( ( edge->opos - anchor->opos + 16 ) & ~31 );
+
AF_LOG(( "SERIF_LINK2: edge %d (opos=%.2f) snapped to (%.2f)\n",
- edge-edges, edge->opos / 64.0, edge->pos / 64.0 ));
+ edge - edges, edge->opos / 64.0, edge->pos / 64.0 ));
}
}
@@ -2093,6 +2158,8 @@
}
+ /* Apply the complete hinting algorithm to a latin glyph. */
+
static FT_Error
af_latin_hints_apply( AF_GlyphHints hints,
FT_Outline* outline,
@@ -2109,7 +2176,7 @@
/* analyze glyph outline */
#ifdef AF_USE_WARPER
if ( metrics->root.scaler.render_mode == FT_RENDER_MODE_LIGHT ||
- AF_HINTS_DO_HORIZONTAL( hints ) )
+ AF_HINTS_DO_HORIZONTAL( hints ) )
#else
if ( AF_HINTS_DO_HORIZONTAL( hints ) )
#endif
@@ -2132,8 +2199,8 @@
for ( dim = 0; dim < AF_DIMENSION_MAX; dim++ )
{
#ifdef AF_USE_WARPER
- if ( ( dim == AF_DIMENSION_HORZ &&
- metrics->root.scaler.render_mode == FT_RENDER_MODE_LIGHT ) )
+ if ( dim == AF_DIMENSION_HORZ &&
+ metrics->root.scaler.render_mode == FT_RENDER_MODE_LIGHT )
{
AF_WarperRec warper;
FT_Fixed scale;
@@ -2206,7 +2273,7 @@
};
- AF_DEFINE_SCRIPT_CLASS(af_latin_script_class,
+ AF_DEFINE_SCRIPT_CLASS(af_latin_script_class,
AF_SCRIPT_LATIN,
af_latin_uniranges,
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-18 01:57:49 +0000