/***************************************************************************/
/* */
-/* aflatin.c */
+/* aflatin2.c */
/* */
/* Auto-fitter hinting routines for latin script (body). */
/* */
-/* Copyright 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 by */
+/* Copyright 2003-2011 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
#include "aferrors.h"
-#ifdef AF_USE_WARPER
+#ifdef AF_CONFIG_OPTION_USE_WARPER
#include "afwarp.h"
#endif
+
+ /*************************************************************************/
+ /* */
+ /* The macro FT_COMPONENT is used in trace mode. It is an implicit */
+ /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */
+ /* messages during execution. */
+ /* */
+#undef FT_COMPONENT
+#define FT_COMPONENT trace_aflatin2
+
+
FT_LOCAL_DEF( FT_Error )
af_latin2_hints_compute_segments( AF_GlyphHints hints,
- AF_Dimension dim );
+ AF_Dimension dim );
FT_LOCAL_DEF( void )
af_latin2_hints_link_segments( AF_GlyphHints hints,
FT_LOCAL_DEF( void )
af_latin2_metrics_init_widths( AF_LatinMetrics metrics,
- FT_Face face,
- FT_ULong charcode )
+ FT_Face face,
+ FT_ULong charcode )
{
/* scan the array of segments in each direction */
AF_GlyphHintsRec hints[1];
dist = -dist;
if ( num_widths < AF_LATIN_MAX_WIDTHS )
- axis->widths[ num_widths++ ].org = dist;
+ axis->widths[num_widths++].org = dist;
}
}
#define AF_LATIN_MAX_TEST_CHARACTERS 12
- static const char af_latin2_blue_chars[AF_LATIN_MAX_BLUES][AF_LATIN_MAX_TEST_CHARACTERS+1] =
+ static const char af_latin2_blue_chars[AF_LATIN_MAX_BLUES]
+ [AF_LATIN_MAX_TEST_CHARACTERS+1] =
{
"THEZOCQS",
"HEZLOCUS",
static void
af_latin2_metrics_init_blues( AF_LatinMetrics metrics,
- FT_Face face )
+ FT_Face face )
{
FT_Pos flats [AF_LATIN_MAX_TEST_CHARACTERS];
FT_Pos rounds[AF_LATIN_MAX_TEST_CHARACTERS];
FT_GlyphSlot glyph = face->glyph;
- /* we compute the blues simply by loading each character from the */
+ /* we compute the blues simply by loading each character from the */
/* 'af_latin2_blue_chars[blues]' string, then compute its top-most or */
- /* bottom-most points (depending on `AF_IS_TOP_BLUE') */
+ /* bottom-most points (depending on `AF_IS_TOP_BLUE') */
- AF_LOG(( "blue zones computation\n" ));
- AF_LOG(( "------------------------------------------------\n" ));
+ FT_TRACE5(( "blue zones computation\n" ));
+ FT_TRACE5(( "------------------------------------------------\n" ));
for ( bb = 0; bb < AF_LATIN_BLUE_MAX; bb++ )
{
FT_Pos* blue_shoot;
- AF_LOG(( "blue %3d: ", bb ));
+ FT_TRACE5(( "blue %3d: ", bb ));
num_flats = 0;
num_rounds = 0;
FT_Bool round;
- AF_LOG(( "'%c'", *p ));
+ 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 );
best_last = last;
}
}
- AF_LOG(( "%5d", best_y ));
+ FT_TRACE5(( "%5d", best_y ));
}
/* now check whether the point belongs to a straight or round */
FT_CURVE_TAG( glyph->outline.tags[start] ) != FT_CURVE_TAG_ON ||
FT_CURVE_TAG( glyph->outline.tags[ end ] ) != FT_CURVE_TAG_ON );
- AF_LOG(( "%c ", round ? 'r' : 'f' ));
+ FT_TRACE5(( "%c ", round ? 'r' : 'f' ));
}
if ( round )
flats[num_flats++] = best_y;
}
- AF_LOG(( "\n" ));
+ 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
*/
- AF_LOG(( "empty\n" ));
+ FT_TRACE5(( "empty\n" ));
continue;
}
if ( bb == AF_LATIN_BLUE_SMALL_TOP )
blue->flags |= AF_LATIN_BLUE_ADJUSTMENT;
- AF_LOG(( "-- ref = %ld, shoot = %ld\n", *blue_ref, *blue_shoot ));
+ FT_TRACE5(( "-- ref = %ld, shoot = %ld\n", *blue_ref, *blue_shoot ));
}
return;
FT_LOCAL_DEF( FT_Error )
af_latin2_metrics_init( AF_LatinMetrics metrics,
- FT_Face face )
+ FT_Face face )
{
FT_Error error = AF_Err_Ok;
FT_CharMap oldmap = face->charmap;
static void
af_latin2_metrics_scale_dim( AF_LatinMetrics metrics,
- AF_Scaler scaler,
- AF_Dimension dim )
+ AF_Scaler scaler,
+ AF_Dimension dim )
{
FT_Fixed scale;
FT_Pos delta;
if ( scaled != fitted )
{
scale = FT_MulDiv( scale, fitted, scaled );
- AF_LOG(( "== scaled x-top = %.2g fitted = %.2g, scaling = %.4g\n", scaled/64.0, fitted/64.0, (fitted*1.0)/scaled ));
+ FT_TRACE5(( "== scaled x-top = %.2g"
+ " fitted = %.2g, scaling = %.4g\n",
+ scaled / 64.0, fitted / 64.0,
+ ( fitted * 1.0 ) / scaled ));
}
#endif
}
}
/* an extra-light axis corresponds to a standard width that is */
- /* smaller than 0.75 pixels */
+ /* smaller than 5/8 pixels */
axis->extra_light =
(FT_Bool)( FT_MulFix( axis->standard_width, scale ) < 32 + 8 );
blue->ref.fit = FT_PIX_ROUND( blue->ref.cur );
blue->shoot.fit = blue->ref.fit + delta2;
- AF_LOG(( ">> activating blue zone %d: ref.cur=%.2g ref.fit=%.2g shoot.cur=%.2g shoot.fit=%.2g\n",
- nn, blue->ref.cur/64.0, blue->ref.fit/64.0,
- blue->shoot.cur/64.0, blue->shoot.fit/64.0 ));
+ FT_TRACE5(( ">> activating blue zone %d:"
+ " ref.cur=%.2g ref.fit=%.2g"
+ " shoot.cur=%.2g shoot.fit=%.2g\n",
+ nn, blue->ref.cur / 64.0, blue->ref.fit / 64.0,
+ blue->shoot.cur / 64.0, blue->shoot.fit / 64.0 ));
blue->flags |= AF_LATIN_BLUE_ACTIVE;
}
FT_LOCAL_DEF( void )
af_latin2_metrics_scale( AF_LatinMetrics metrics,
- AF_Scaler scaler )
+ AF_Scaler scaler )
{
metrics->root.scaler.render_mode = scaler->render_mode;
metrics->root.scaler.face = scaler->face;
FT_LOCAL_DEF( FT_Error )
af_latin2_hints_compute_segments( AF_GlyphHints hints,
- AF_Dimension dim )
+ AF_Dimension dim )
{
AF_AxisHints axis = &hints->axis[dim];
FT_Memory memory = hints->memory;
segment->dir = first->out_dir;
segment->first = first;
segment->last = point;
- segment->contour = contour;
segment->pos = (FT_Short)(( min_u + max_u ) >> 1);
segment->min_coord = (FT_Short) min_v;
segment->max_coord = (FT_Short) max_v;
FT_LOCAL_DEF( void )
af_latin2_hints_link_segments( AF_GlyphHints hints,
- AF_Dimension dim )
+ AF_Dimension dim )
{
AF_AxisHints axis = &hints->axis[dim];
AF_Segment segments = axis->segments;
FT_LOCAL_DEF( FT_Error )
af_latin2_hints_compute_edges( AF_GlyphHints hints,
- AF_Dimension dim )
+ AF_Dimension dim )
{
AF_AxisHints axis = &hints->axis[dim];
FT_Error error = AF_Err_Ok;
/* insert a new edge in the list and */
/* sort according to the position */
- error = af_axis_hints_new_edge( axis, seg->pos, seg->dir, memory, &edge );
+ error = af_axis_hints_new_edge( axis, seg->pos, seg->dir,
+ memory, &edge );
if ( error )
goto Exit;
{
FT_Int is_round = 0; /* does it contain round segments? */
FT_Int is_straight = 0; /* does it contain straight segments? */
+#if 0
FT_Pos ups = 0; /* number of upwards segments */
FT_Pos downs = 0; /* number of downwards segments */
+#endif
seg = edge->first;
else
is_straight++;
+#if 0
/* check for segment direction */
if ( seg->dir == up_dir )
ups += seg->max_coord-seg->min_coord;
else
downs += seg->max_coord-seg->min_coord;
+#endif
/* check for links -- if seg->serif is set, then seg->link must */
/* be ignored */
FT_LOCAL_DEF( FT_Error )
af_latin2_hints_detect_features( AF_GlyphHints hints,
- AF_Dimension dim )
+ AF_Dimension dim )
{
FT_Error error;
FT_LOCAL_DEF( void )
af_latin2_hints_compute_blue_edges( AF_GlyphHints hints,
- AF_LatinMetrics metrics )
+ AF_LatinMetrics metrics )
{
- AF_AxisHints axis = &hints->axis[ AF_DIMENSION_VERT ];
+ AF_AxisHints axis = &hints->axis[AF_DIMENSION_VERT];
AF_Edge edge = axis->edges;
AF_Edge edge_limit = edge + axis->num_edges;
- AF_LatinAxis latin = &metrics->axis[ AF_DIMENSION_VERT ];
+ AF_LatinAxis latin = &metrics->axis[AF_DIMENSION_VERT];
FT_Fixed scale = latin->scale;
FT_Pos best_dist0; /* initial threshold */
static FT_Error
af_latin2_hints_init( AF_GlyphHints hints,
- AF_LatinMetrics metrics )
+ AF_LatinMetrics metrics )
{
FT_Render_Mode mode;
FT_UInt32 scaler_flags, other_flags;
/* compute flags depending on render mode, etc. */
mode = metrics->root.scaler.render_mode;
-#if 0 /* #ifdef AF_USE_WARPER */
+#if 0 /* #ifdef AF_CONFIG_OPTION_USE_WARPER */
if ( mode == FT_RENDER_MODE_LCD || mode == FT_RENDER_MODE_LCD_V )
{
metrics->root.scaler.render_mode = mode = FT_RENDER_MODE_NORMAL;
static FT_Pos
af_latin2_snap_width( AF_Width widths,
- FT_Int count,
- FT_Pos width )
+ FT_Int count,
+ FT_Pos width )
{
int n;
FT_Pos best = 64 + 32 + 2;
static FT_Pos
af_latin2_compute_stem_width( AF_GlyphHints hints,
- AF_Dimension dim,
- FT_Pos width,
- AF_Edge_Flags base_flags,
- AF_Edge_Flags stem_flags )
+ AF_Dimension dim,
+ FT_Pos width,
+ AF_Edge_Flags base_flags,
+ AF_Edge_Flags stem_flags )
{
AF_LatinMetrics metrics = (AF_LatinMetrics) hints->metrics;
AF_LatinAxis axis = & metrics->axis[dim];
static void
af_latin2_align_linked_edge( AF_GlyphHints hints,
- AF_Dimension dim,
- AF_Edge base_edge,
- AF_Edge stem_edge )
+ AF_Dimension dim,
+ AF_Edge base_edge,
+ AF_Edge stem_edge )
{
FT_Pos dist = stem_edge->opos - base_edge->opos;
stem_edge->pos = base_edge->pos + fitted_width;
- AF_LOG(( "LINK: edge %d (opos=%.2f) linked to (%.2f), "
- "dist was %.2f, now %.2f\n",
- stem_edge-hints->axis[dim].edges, stem_edge->opos / 64.0,
- stem_edge->pos / 64.0, dist / 64.0, fitted_width / 64.0 ));
+ FT_TRACE5(( "LINK: edge %d (opos=%.2f) linked to (%.2f), "
+ "dist was %.2f, now %.2f\n",
+ stem_edge-hints->axis[dim].edges, stem_edge->opos / 64.0,
+ stem_edge->pos / 64.0, dist / 64.0, fitted_width / 64.0 ));
}
static void
af_latin2_align_serif_edge( AF_GlyphHints hints,
- AF_Edge base,
- AF_Edge serif )
+ AF_Edge base,
+ AF_Edge serif )
{
FT_UNUSED( hints );
FT_LOCAL_DEF( void )
af_latin2_hint_edges( AF_GlyphHints hints,
- AF_Dimension dim )
+ AF_Dimension dim )
{
AF_AxisHints axis = &hints->axis[dim];
AF_Edge edges = axis->edges;
- AF_LOG(( "==== hinting %s edges =====\n", dim == AF_DIMENSION_HORZ ? "vertical" : "horizontal" ));
+ FT_TRACE5(( "==== hinting %s edges =====\n",
+ dim == AF_DIMENSION_HORZ ? "vertical" : "horizontal" ));
/* we begin by aligning all stems relative to the blue zone */
/* if needed -- that's only for horizontal edges */
if ( !edge1 )
continue;
- AF_LOG(( "BLUE: edge %d (opos=%.2f) snapped to (%.2f), "
- "was (%.2f)\n",
- edge1-edges, edge1->opos / 64.0, blue->fit / 64.0,
- edge1->pos / 64.0 ));
+ FT_TRACE5(( "BLUE: edge %d (opos=%.2f) snapped to (%.2f), "
+ "was (%.2f)\n",
+ edge1-edges, edge1->opos / 64.0, blue->fit / 64.0,
+ edge1->pos / 64.0 ));
edge1->pos = blue->fit;
edge1->flags |= AF_EDGE_DONE;
/* this should not happen, but it's better to be safe */
if ( edge2->blue_edge )
{
- AF_LOG(( "ASSERTION FAILED for edge %d\n", edge2-edges ));
+ FT_TRACE5(( "ASSERTION FAILED for edge %d\n", edge2-edges ));
af_latin2_align_linked_edge( hints, dim, edge2, edge );
edge->flags |= AF_EDGE_DONE;
else
edge->pos = FT_PIX_ROUND( edge->opos );
- AF_LOG(( "ANCHOR: edge %d (opos=%.2f) and %d (opos=%.2f) "
- "snapped to (%.2f) (%.2f)\n",
- edge-edges, edge->opos / 64.0,
- edge2-edges, edge2->opos / 64.0,
- edge->pos / 64.0, edge2->pos / 64.0 ));
+ FT_TRACE5(( "ANCHOR: edge %d (opos=%.2f) and %d (opos=%.2f)"
+ " snapped to (%.2f) (%.2f)\n",
+ edge-edges, edge->opos / 64.0,
+ edge2-edges, edge2->opos / 64.0,
+ edge->pos / 64.0, edge2->pos / 64.0 ));
anchor = edge;
edge->flags |= AF_EDGE_DONE;
anchor_drift = ( (anchor->pos - anchor->opos) +
(edge2->pos - edge2->opos)) >> 1;
- AF_LOG(( "DRIFT: %.2f\n", anchor_drift/64.0 ));
+ FT_TRACE5(( "DRIFT: %.2f\n", anchor_drift/64.0 ));
}
else
{
org_left = org_pos + ((org_len - cur_len) >> 1);
org_right = org_pos + ((org_len + cur_len) >> 1);
- AF_LOG(( "ALIGN: left=%.2f right=%.2f ", org_left/64.0, org_right/64.0 ));
+ FT_TRACE5(( "ALIGN: left=%.2f right=%.2f ",
+ org_left / 64.0, org_right / 64.0 ));
cur_center = org_center;
if ( edge2->flags & AF_EDGE_DONE )
{
- AF_LOG(( "\n" ));
+ FT_TRACE5(( "\n" ));
edge->pos = edge2->pos - cur_len;
}
else
/* note: don't even try to fit tiny stems */
if ( cur_len < 32 )
{
- AF_LOG(( "tiny stem\n" ));
+ FT_TRACE5(( "tiny stem\n" ));
goto AlignStem;
}
/* if the span is within a single pixel, don't touch it */
if ( FT_PIX_FLOOR(org_left) == FT_PIX_CEIL(org_right) )
{
- AF_LOG(( "single pixel stem\n" ));
+ FT_TRACE5(( "single pixel stem\n" ));
goto AlignStem;
}
delta = FT_ABS(fit - org);
displacements[count] = fit - org;
scores[count++] = delta;
- AF_LOG(( "dispA=%.2f (%d) ", (fit - org)/64.0, delta ));
+ FT_TRACE5(( "dispA=%.2f (%d) ", (fit - org) / 64.0, delta ));
org = frac_right;
fit = (org <= 32) ? 16 : 48;
delta = FT_ABS(fit - org);
displacements[count] = fit - org;
scores[count++] = delta;
- AF_LOG(( "dispB=%.2f (%d) ", (fit - org)/64.0, delta ));
+ FT_TRACE5(( "dispB=%.2f (%d) ", (fit - org) / 64.0, delta ));
}
}
delta = FT_ABS(fit - org);
displacements[count] = fit - org;
scores[count++] = delta;
- AF_LOG(( "dispC=%.2f (%d) ", (fit - org)/64.0, delta ));
+ FT_TRACE5(( "dispC=%.2f (%d) ", (fit - org) / 64.0, delta ));
/* snapping the right edge to the grid */
org = org_right;
delta = FT_ABS(fit - org);
displacements[count] = fit - org;
scores[count++] = delta;
- AF_LOG(( "dispD=%.2f (%d) ", (fit - org)/64.0, delta ));
+ FT_TRACE5(( "dispD=%.2f (%d) ", (fit - org) / 64.0, delta ));
/* now find the best displacement */
{
cur_center = org_center + best_disp;
}
- AF_LOG(( "\n" ));
+ FT_TRACE5(( "\n" ));
}
AlignStem:
edge->pos = cur_center - (cur_len >> 1);
edge2->pos = edge->pos + cur_len;
- AF_LOG(( "STEM1: %d (opos=%.2f) to %d (opos=%.2f) "
- "snapped to (%.2f) and (%.2f), org_len = %.2f cur_len=%.2f\n",
- edge-edges, edge->opos / 64.0,
- edge2-edges, edge2->opos / 64.0,
- edge->pos / 64.0, edge2->pos / 64.0,
- org_len / 64.0, cur_len / 64.0 ));
+ FT_TRACE5(( "STEM1: %d (opos=%.2f) to %d (opos=%.2f)"
+ " snapped to (%.2f) and (%.2f),"
+ " org_len=%.2f cur_len=%.2f\n",
+ edge-edges, edge->opos / 64.0,
+ edge2-edges, edge2->opos / 64.0,
+ edge->pos / 64.0, edge2->pos / 64.0,
+ org_len / 64.0, cur_len / 64.0 ));
edge->flags |= AF_EDGE_DONE;
edge2->flags |= AF_EDGE_DONE;
if ( edge > edges && edge->pos < edge[-1].pos )
{
- AF_LOG(( "BOUND: %d (pos=%.2f) to (%.2f)\n",
- edge-edges, edge->pos / 64.0, edge[-1].pos / 64.0 ));
+ FT_TRACE5(( "BOUND: %d (pos=%.2f) to (%.2f)\n",
+ edge-edges, edge->pos / 64.0, edge[-1].pos / 64.0 ));
edge->pos = edge[-1].pos;
}
}
if ( delta < 64 + 16 )
{
af_latin2_align_serif_edge( hints, edge->serif, edge );
- AF_LOG(( "SERIF: edge %d (opos=%.2f) serif to %d (opos=%.2f) "
- "aligned to (%.2f)\n",
- edge-edges, edge->opos / 64.0,
- edge->serif - edges, edge->serif->opos / 64.0,
- edge->pos / 64.0 ));
+ FT_TRACE5(( "SERIF: edge %d (opos=%.2f) serif to %d (opos=%.2f)"
+ " aligned to (%.2f)\n",
+ edge-edges, edge->opos / 64.0,
+ edge->serif - edges, edge->serif->opos / 64.0,
+ edge->pos / 64.0 ));
}
else if ( !anchor )
{
- AF_LOG(( "SERIF_ANCHOR: edge %d (opos=%.2f) snapped to (%.2f)\n",
- edge-edges, edge->opos / 64.0, edge->pos / 64.0 ));
+ FT_TRACE5(( "SERIF_ANCHOR: edge %d (opos=%.2f)"
+ " snapped to (%.2f)\n",
+ edge-edges, edge->opos / 64.0, edge->pos / 64.0 ));
edge->pos = FT_PIX_ROUND( edge->opos );
anchor = edge;
}
FT_MulDiv( edge->opos - before->opos,
after->pos - before->pos,
after->opos - before->opos );
- AF_LOG(( "SERIF_LINK1: edge %d (opos=%.2f) snapped to (%.2f) from %d (opos=%.2f)\n",
- edge-edges, edge->opos / 64.0, edge->pos / 64.0, before - edges, before->opos / 64.0 ));
+ FT_TRACE5(( "SERIF_LINK1: edge %d (opos=%.2f) snapped to (%.2f)"
+ " from %d (opos=%.2f)\n",
+ edge-edges, edge->opos / 64.0, edge->pos / 64.0,
+ before - edges, before->opos / 64.0 ));
}
else
{
- edge->pos = anchor->pos + (( edge->opos - anchor->opos + 16) & ~31);
+ edge->pos = anchor->pos +
+ ( ( edge->opos - anchor->opos + 16 ) & ~31 );
- AF_LOG(( "SERIF_LINK2: edge %d (opos=%.2f) snapped to (%.2f)\n",
- edge-edges, edge->opos / 64.0, edge->pos / 64.0 ));
+ FT_TRACE5(( "SERIF_LINK2: edge %d (opos=%.2f)"
+ " snapped to (%.2f)\n",
+ edge-edges, edge->opos / 64.0, edge->pos / 64.0 ));
}
}
static FT_Error
af_latin2_hints_apply( AF_GlyphHints hints,
- FT_Outline* outline,
- AF_LatinMetrics metrics )
+ FT_Outline* outline,
+ AF_LatinMetrics metrics )
{
FT_Error error;
int dim;
goto Exit;
/* analyze glyph outline */
-#ifdef AF_USE_WARPER
+#ifdef AF_CONFIG_OPTION_USE_WARPER
if ( metrics->root.scaler.render_mode == FT_RENDER_MODE_LIGHT ||
AF_HINTS_DO_HORIZONTAL( hints ) )
#else
/* grid-fit the outline */
for ( dim = 0; dim < AF_DIMENSION_MAX; dim++ )
{
-#ifdef AF_USE_WARPER
+#ifdef AF_CONFIG_OPTION_USE_WARPER
if ( ( dim == AF_DIMENSION_HORZ &&
metrics->root.scaler.render_mode == FT_RENDER_MODE_LIGHT ) )
{
static const AF_Script_UniRangeRec af_latin2_uniranges[] =
{
- AF_UNIRANGE_REC( 32UL, 127UL ), /* XXX: TODO: Add new Unicode ranges here! */
+ AF_UNIRANGE_REC( 32UL, 127UL ), /* TODO: Add new Unicode ranges here! */
AF_UNIRANGE_REC( 160UL, 255UL ),
AF_UNIRANGE_REC( 0UL, 0UL )
};
- AF_DEFINE_SCRIPT_CLASS(af_latin2_script_class,
+ AF_DEFINE_SCRIPT_CLASS( af_latin2_script_class,
AF_SCRIPT_LATIN2,
af_latin2_uniranges,
- sizeof( AF_LatinMetricsRec ),
+ sizeof ( AF_LatinMetricsRec ),
(AF_Script_InitMetricsFunc) af_latin2_metrics_init,
(AF_Script_ScaleMetricsFunc)af_latin2_metrics_scale,
projects / framework / graphics / freetype.git / blobdiff