diff options
Diffstat (limited to 'src/3rdparty/freetype/src/autofit/aflatin.c')
| -rw-r--r-- | src/3rdparty/freetype/src/autofit/aflatin.c | 622 |
1 files changed, 338 insertions, 284 deletions
diff --git a/src/3rdparty/freetype/src/autofit/aflatin.c b/src/3rdparty/freetype/src/autofit/aflatin.c index 9f1b54056f..b86367aa94 100644 --- a/src/3rdparty/freetype/src/autofit/aflatin.c +++ b/src/3rdparty/freetype/src/autofit/aflatin.c @@ -1,44 +1,37 @@ -/***************************************************************************/ -/* */ -/* aflatin.c */ -/* */ -/* Auto-fitter hinting routines for latin writing system (body). */ -/* */ -/* Copyright 2003-2018 by */ -/* David Turner, Robert Wilhelm, and Werner Lemberg. */ -/* */ -/* This file is part of the FreeType project, and may only be used, */ -/* modified, and distributed under the terms of the FreeType project */ -/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ -/* this file you indicate that you have read the license and */ -/* understand and accept it fully. */ -/* */ -/***************************************************************************/ - - -#include <ft2build.h> -#include FT_ADVANCES_H -#include FT_INTERNAL_DEBUG_H +/**************************************************************************** + * + * aflatin.c + * + * Auto-fitter hinting routines for latin writing system (body). + * + * Copyright (C) 2003-2023 by + * David Turner, Robert Wilhelm, and Werner Lemberg. + * + * This file is part of the FreeType project, and may only be used, + * modified, and distributed under the terms of the FreeType project + * license, LICENSE.TXT. By continuing to use, modify, or distribute + * this file you indicate that you have read the license and + * understand and accept it fully. + * + */ + + +#include <freetype/ftadvanc.h> +#include <freetype/internal/ftdebug.h> #include "afglobal.h" -#include "afpic.h" #include "aflatin.h" #include "aferrors.h" -#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. */ - /* */ + /************************************************************************** + * + * 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_aflatin +#define FT_COMPONENT aflatin /* needed for computation of round vs. flat segments */ @@ -65,11 +58,11 @@ AF_GlyphHintsRec hints[1]; - FT_TRACE5(( "\n" - "latin standard widths computation (style `%s')\n" - "=====================================================\n" - "\n", + FT_TRACE5(( "\n" )); + FT_TRACE5(( "latin standard widths computation (style `%s')\n", af_style_names[metrics->root.style_class->style] )); + FT_TRACE5(( "=====================================================\n" )); + FT_TRACE5(( "\n" )); af_glyph_hints_init( hints, face->memory ); @@ -83,24 +76,30 @@ AF_LatinMetricsRec dummy[1]; AF_Scaler scaler = &dummy->root.scaler; -#ifdef FT_CONFIG_OPTION_PIC - AF_FaceGlobals globals = metrics->root.globals; -#endif - AF_StyleClass style_class = metrics->root.style_class; - AF_ScriptClass script_class = AF_SCRIPT_CLASSES_GET - [style_class->script]; + AF_ScriptClass script_class = af_script_classes[style_class->script]; + + /* If HarfBuzz is not available, we need a pointer to a single */ + /* unsigned long value. */ +#ifdef FT_CONFIG_OPTION_USE_HARFBUZZ + void* shaper_buf; +#else + FT_ULong shaper_buf_; + void* shaper_buf = &shaper_buf_; +#endif - void* shaper_buf; const char* p; #ifdef FT_DEBUG_LEVEL_TRACE FT_ULong ch = 0; #endif - p = script_class->standard_charstring; - shaper_buf = af_shaper_buf_create( face ); + p = script_class->standard_charstring; + +#ifdef FT_CONFIG_OPTION_USE_HARFBUZZ + shaper_buf = af_shaper_buf_create( face ); +#endif /* * We check a list of standard characters to catch features like * `c2sc' (small caps from caps) that don't contain lowercase letters @@ -144,9 +143,13 @@ af_shaper_buf_destroy( face, shaper_buf ); if ( !glyph_index ) + { + FT_TRACE5(( "standard character missing;" + " using fallback stem widths\n" )); goto Exit; + } - FT_TRACE5(( "standard character: U+%04lX (glyph index %d)\n", + FT_TRACE5(( "standard character: U+%04lX (glyph index %ld)\n", ch, glyph_index )); error = FT_Load_Glyph( face, glyph_index, FT_LOAD_NO_SCALE ); @@ -186,10 +189,10 @@ goto Exit; /* - * We assume that the glyphs selected for the stem width - * computation are `featureless' enough so that the linking - * algorithm works fine without adjustments of its scoring - * function. + * We assume that the glyphs selected for the stem width + * computation are `featureless' enough so that the linking + * algorithm works fine without adjustments of its scoring + * function. */ af_latin_hints_link_segments( hints, 0, @@ -197,7 +200,7 @@ (AF_Dimension)dim ); seg = axhints->segments; - limit = seg + axhints->num_segments; + limit = FT_OFFSET( seg, axhints->num_segments ); for ( ; seg < limit; seg++ ) { @@ -249,9 +252,9 @@ dim == AF_DIMENSION_VERT ? "horizontal" : "vertical" )); - FT_TRACE5(( " %d (standard)", axis->standard_width )); + FT_TRACE5(( " %ld (standard)", axis->standard_width )); for ( i = 1; i < axis->width_count; i++ ) - FT_TRACE5(( " %d", axis->widths[i].org )); + FT_TRACE5(( " %ld", axis->widths[i].org )); FT_TRACE5(( "\n" )); } @@ -307,7 +310,7 @@ /* Find all blue zones. Flat segments give the reference points, */ /* round segments the overshoot positions. */ - static void + static int af_latin_metrics_init_blues( AF_LatinMetrics metrics, FT_Face face ) { @@ -329,17 +332,26 @@ FT_Pos flat_threshold = FLAT_THRESHOLD( metrics->units_per_em ); - void* shaper_buf; + /* If HarfBuzz is not available, we need a pointer to a single */ + /* unsigned long value. */ +#ifdef FT_CONFIG_OPTION_USE_HARFBUZZ + void* shaper_buf; +#else + FT_ULong shaper_buf_; + void* shaper_buf = &shaper_buf_; +#endif /* we walk over the blue character strings as specified in the */ /* style's entry in the `af_blue_stringset' array */ - FT_TRACE5(( "latin blue zones computation\n" - "============================\n" - "\n" )); + FT_TRACE5(( "latin blue zones computation\n" )); + FT_TRACE5(( "============================\n" )); + FT_TRACE5(( "\n" )); +#ifdef FT_CONFIG_OPTION_USE_HARFBUZZ shaper_buf = af_shaper_buf_create( face ); +#endif for ( ; bs->string != AF_BLUE_STRING_MAX; bs++ ) { @@ -484,23 +496,20 @@ /* now compute min or max point indices and coordinates */ points = outline.points; best_point = -1; + best_contour_first = -1; + best_contour_last = -1; best_y = 0; /* make compiler happy */ - best_contour_first = 0; /* ditto */ - best_contour_last = 0; /* ditto */ { FT_Int nn; - FT_Int first = 0; - FT_Int last = -1; + FT_Int pp, first, last; - for ( nn = 0; nn < outline.n_contours; first = last + 1, nn++ ) + last = -1; + for ( nn = 0; nn < outline.n_contours; nn++ ) { - FT_Int old_best_point = best_point; - FT_Int pp; - - - last = outline.contours[nn]; + first = last + 1; + last = outline.contours[nn]; /* Avoid single-point contours since they are never */ /* rasterized. In some fonts, they correspond to mark */ @@ -539,7 +548,7 @@ } } - if ( best_point != old_best_point ) + if ( best_point > best_contour_last ) { best_contour_first = first; best_contour_last = last; @@ -884,8 +893,8 @@ 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 + * we couldn't find a single glyph to compute this blue zone, + * we will simply ignore it then */ FT_TRACE5(( " empty\n" )); continue; @@ -959,18 +968,18 @@ if ( AF_LATIN_IS_X_HEIGHT_BLUE( bs ) ) blue->flags |= AF_LATIN_BLUE_ADJUSTMENT; - FT_TRACE5(( " -> reference = %ld\n" - " overshoot = %ld\n", - *blue_ref, *blue_shoot )); + FT_TRACE5(( " -> reference = %ld\n", *blue_ref )); + FT_TRACE5(( " overshoot = %ld\n", *blue_shoot )); } /* end for loop */ af_shaper_buf_destroy( face, shaper_buf ); - /* we finally check whether blue zones are ordered; */ - /* `ref' and `shoot' values of two blue zones must not overlap */ if ( axis->blue_count ) { + /* we finally check whether blue zones are ordered; */ + /* `ref' and `shoot' values of two blue zones must not overlap */ + FT_UInt i; AF_LatinBlue blue_sorted[AF_BLUE_STRINGSET_MAX_LEN + 2]; @@ -1013,17 +1022,40 @@ { *a = *b; FT_TRACE5(( "blue zone overlap:" - " adjusting %s %d to %ld\n", + " adjusting %s %td to %ld\n", a_is_top ? "overshoot" : "reference", blue_sorted[i] - axis->blues, *a )); } } + + FT_TRACE5(( "\n" )); + + return 0; } + else + { + /* disable hinting for the current style if there are no blue zones */ + + AF_FaceGlobals globals = metrics->root.globals; + FT_UShort* gstyles = globals->glyph_styles; + + FT_UInt i; - FT_TRACE5(( "\n" )); - return; + FT_TRACE5(( "no blue zones found:" + " hinting disabled for this style\n" )); + + for ( i = 0; i < globals->glyph_count; i++ ) + { + if ( ( gstyles[i] & AF_STYLE_MASK ) == sc->style ) + gstyles[i] = AF_STYLE_NONE_DFLT; + } + + FT_TRACE5(( "\n" )); + + return 1; + } } @@ -1033,18 +1065,28 @@ af_latin_metrics_check_digits( AF_LatinMetrics metrics, FT_Face face ) { - FT_Bool started = 0, same_width = 1; - FT_Fixed advance = 0, old_advance = 0; + FT_Bool started = 0, same_width = 1; + FT_Long advance = 0, old_advance = 0; - void* shaper_buf; + /* If HarfBuzz is not available, we need a pointer to a single */ + /* unsigned long value. */ +#ifdef FT_CONFIG_OPTION_USE_HARFBUZZ + void* shaper_buf; +#else + FT_ULong shaper_buf_; + void* shaper_buf = &shaper_buf_; +#endif /* in all supported charmaps, digits have character codes 0x30-0x39 */ const char digits[] = "0 1 2 3 4 5 6 7 8 9"; const char* p; - p = digits; + p = digits; + +#ifdef FT_CONFIG_OPTION_USE_HARFBUZZ shaper_buf = af_shaper_buf_create( face ); +#endif while ( *p ) { @@ -1089,9 +1131,13 @@ /* Initialize global metrics. */ FT_LOCAL_DEF( FT_Error ) - af_latin_metrics_init( AF_LatinMetrics metrics, + af_latin_metrics_init( AF_StyleMetrics metrics_, /* AF_LatinMetrics */ FT_Face face ) { + AF_LatinMetrics metrics = (AF_LatinMetrics)metrics_; + + FT_Error error = FT_Err_Ok; + FT_CharMap oldmap = face->charmap; @@ -1100,12 +1146,18 @@ if ( !FT_Select_Charmap( face, FT_ENCODING_UNICODE ) ) { af_latin_metrics_init_widths( metrics, face ); - af_latin_metrics_init_blues( metrics, face ); + if ( af_latin_metrics_init_blues( metrics, face ) ) + { + /* use internal error code to indicate missing blue zones */ + error = -1; + goto Exit; + } af_latin_metrics_check_digits( metrics, face ); } - FT_Set_Charmap( face, oldmap ); - return FT_Err_Ok; + Exit: + face->charmap = oldmap; + return error; } @@ -1216,29 +1268,28 @@ if ( dist == 0 ) { - FT_TRACE5(( - "af_latin_metrics_scale_dim:" - " x height alignment (style `%s'):\n" - " " - " vertical scaling changed from %.5f to %.5f (by %d%%)\n" - "\n", - af_style_names[metrics->root.style_class->style], - scale / 65536.0, - new_scale / 65536.0, - ( fitted - scaled ) * 100 / scaled )); + FT_TRACE5(( "af_latin_metrics_scale_dim:" + " x height alignment (style `%s'):\n", + af_style_names[metrics->root.style_class->style] )); + FT_TRACE5(( " " + " vertical scaling changed" + " from %.5f to %.5f (by %ld%%)\n", + (double)scale / 65536, + (double)new_scale / 65536, + ( fitted - scaled ) * 100 / scaled )); + FT_TRACE5(( "\n" )); scale = new_scale; } #ifdef FT_DEBUG_LEVEL_TRACE else { - FT_TRACE5(( - "af_latin_metrics_scale_dim:" - " x height alignment (style `%s'):\n" - " " - " excessive vertical scaling abandoned\n" - "\n", - af_style_names[metrics->root.style_class->style] )); + FT_TRACE5(( "af_latin_metrics_scale_dim:" + " x height alignment (style `%s'):\n", + af_style_names[metrics->root.style_class->style] )); + FT_TRACE5(( " " + " excessive vertical scaling abandoned\n" )); + FT_TRACE5(( "\n" )); } #endif } @@ -1273,9 +1324,9 @@ width->cur = FT_MulFix( width->org, scale ); width->fit = width->cur; - FT_TRACE5(( " %d scaled to %.2f\n", + FT_TRACE5(( " %ld scaled to %.2f\n", width->org, - width->cur / 64.0 )); + (double)width->cur / 64 )); } FT_TRACE5(( "\n" )); @@ -1283,13 +1334,15 @@ /* an extra-light axis corresponds to a standard width that is */ /* smaller than 5/8 pixels */ axis->extra_light = - (FT_Bool)( FT_MulFix( axis->standard_width, scale ) < 32 + 8 ); + FT_BOOL( FT_MulFix( axis->standard_width, scale ) < 32 + 8 ); #ifdef FT_DEBUG_LEVEL_TRACE if ( axis->extra_light ) - FT_TRACE5(( "`%s' style is extra light (at current resolution)\n" - "\n", + { + FT_TRACE5(( "`%s' style is extra light (at current resolution)\n", af_style_names[metrics->root.style_class->style] )); + FT_TRACE5(( "\n" )); + } #endif if ( dim == AF_DIMENSION_VERT ) @@ -1414,18 +1467,18 @@ AF_LatinBlue blue = &axis->blues[nn]; - FT_TRACE5(( " reference %d: %d scaled to %.2f%s\n" - " overshoot %d: %d scaled to %.2f%s\n", + FT_TRACE5(( " reference %d: %ld scaled to %.2f%s\n", nn, blue->ref.org, - blue->ref.fit / 64.0, - blue->flags & AF_LATIN_BLUE_ACTIVE ? "" - : " (inactive)", + (double)blue->ref.fit / 64, + ( blue->flags & AF_LATIN_BLUE_ACTIVE ) ? "" + : " (inactive)" )); + FT_TRACE5(( " overshoot %d: %ld scaled to %.2f%s\n", nn, blue->shoot.org, - blue->shoot.fit / 64.0, - blue->flags & AF_LATIN_BLUE_ACTIVE ? "" - : " (inactive)" )); + (double)blue->shoot.fit / 64, + ( blue->flags & AF_LATIN_BLUE_ACTIVE ) ? "" + : " (inactive)" )); } #endif } @@ -1435,9 +1488,12 @@ /* Scale global values in both directions. */ FT_LOCAL_DEF( void ) - af_latin_metrics_scale( AF_LatinMetrics metrics, + af_latin_metrics_scale( AF_StyleMetrics metrics_, /* AF_LatinMetrics */ AF_Scaler scaler ) { + AF_LatinMetrics metrics = (AF_LatinMetrics)metrics_; + + metrics->root.scaler.render_mode = scaler->render_mode; metrics->root.scaler.face = scaler->face; metrics->root.scaler.flags = scaler->flags; @@ -1450,11 +1506,14 @@ /* Extract standard_width from writing system/script specific */ /* metrics class. */ - FT_LOCAL_DEF( void ) - af_latin_get_standard_widths( AF_LatinMetrics metrics, + FT_CALLBACK_DEF( void ) + af_latin_get_standard_widths( AF_StyleMetrics metrics_, /* AF_LatinMetrics */ FT_Pos* stdHW, FT_Pos* stdVW ) { + AF_LatinMetrics metrics = (AF_LatinMetrics)metrics_; + + if ( stdHW ) *stdHW = metrics->axis[AF_DIMENSION_VERT].standard_width; @@ -1788,6 +1847,31 @@ ( FT_ABS( point->out_dir ) == major_dir || point == point->prev ) ) { + /* + * For efficiency, we restrict the number of segments to 1000, + * which is a heuristic value: it is very unlikely that a glyph + * with so many segments can be hinted in a sensible way. + * Reasons: + * + * - The glyph has really 1000 segments; this implies that it has + * at least 2000 outline points. Assuming 'normal' fonts that + * have superfluous points optimized away, viewing such a glyph + * only makes sense at large magnifications where hinting + * isn't applied anyway. + * + * - We have a broken glyph. Hinting doesn't make sense in this + * case either. + */ + if ( axis->num_segments > 1000 ) + { + FT_TRACE0(( "af_latin_hints_compute_segments:" + " more than 1000 segments in this glyph;\n" )); + FT_TRACE0(( " " + " hinting is suppressed\n" )); + axis->num_segments = 0; + return FT_Err_Ok; + } + /* this is the start of a new segment! */ segment_dir = (AF_Direction)point->out_dir; @@ -1850,7 +1934,7 @@ /* sense -- this is used to better detect and ignore serifs */ { AF_Segment segments = axis->segments; - AF_Segment segments_end = segments + axis->num_segments; + AF_Segment segments_end = FT_OFFSET( segments, axis->num_segments ); for ( segment = segments; segment < segments_end; segment++ ) @@ -1910,7 +1994,7 @@ { AF_AxisHints axis = &hints->axis[dim]; AF_Segment segments = axis->segments; - AF_Segment segment_limit = segments + axis->num_segments; + AF_Segment segment_limit = FT_OFFSET( segments, axis->num_segments ); FT_Pos len_threshold, len_score, dist_score, max_width; AF_Segment seg1, seg2; @@ -1962,22 +2046,22 @@ max = seg2->max_coord; /* compute maximum coordinate difference of the two segments */ - /* (this is, how much they overlap) */ + /* (that is, how much they overlap) */ len = max - min; if ( len >= len_threshold ) { /* - * The score is the sum of two demerits indicating the - * `badness' of a fit, measured along the segments' main axis - * and orthogonal to it, respectively. + * The score is the sum of two demerits indicating the + * `badness' of a fit, measured along the segments' main axis + * and orthogonal to it, respectively. * - * o The less overlapping along the main axis, the worse it - * is, causing a larger demerit. + * - The less overlapping along the main axis, the worse it + * is, causing a larger demerit. * - * o The nearer the orthogonal distance to a stem width, the - * better it is, causing a smaller demerit. For simplicity, - * however, we only increase the demerit for values that - * exceed the largest stem width. + * - The nearer the orthogonal distance to a stem width, the + * better it is, causing a smaller demerit. For simplicity, + * however, we only increase the demerit for values that + * exceed the largest stem width. */ FT_Pos dist = pos2 - pos1; @@ -2030,7 +2114,7 @@ { if ( seg2->link != seg1 ) { - seg1->link = 0; + seg1->link = NULL; seg1->serif = seg2->link; } } @@ -2049,18 +2133,13 @@ FT_Memory memory = hints->memory; AF_LatinAxis laxis = &((AF_LatinMetrics)hints->metrics)->axis[dim]; -#ifdef FT_CONFIG_OPTION_PIC - AF_FaceGlobals globals = hints->metrics->globals; -#endif - AF_StyleClass style_class = hints->metrics->style_class; - AF_ScriptClass script_class = AF_SCRIPT_CLASSES_GET - [style_class->script]; + AF_ScriptClass script_class = af_script_classes[style_class->script]; FT_Bool top_to_bottom_hinting = 0; AF_Segment segments = axis->segments; - AF_Segment segment_limit = segments + axis->num_segments; + AF_Segment segment_limit = FT_OFFSET( segments, axis->num_segments ); AF_Segment seg; #if 0 @@ -2086,9 +2165,9 @@ top_to_bottom_hinting = script_class->top_to_bottom_hinting; /* - * 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. + * 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. */ if ( dim == AF_DIMENSION_HORZ ) segment_length_threshold = FT_DivFix( 64, hints->y_scale ); @@ -2096,26 +2175,26 @@ segment_length_threshold = 0; /* - * Similarly, we ignore segments that have a width delta - * larger than 0.5px (i.e., a width larger than 1px). + * Similarly, we ignore segments that have a width delta + * larger than 0.5px (i.e., a width larger than 1px). */ segment_width_threshold = FT_DivFix( 32, scale ); - /*********************************************************************/ - /* */ - /* 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 gets processed in the second step to compute the */ - /* edge's properties. */ - /* */ - /* Note that the table of edges is sorted along the segment/edge */ - /* 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 gets processed in the second step to compute the + * edge's properties. + * + * Note that the table of edges is sorted along the segment/edge + * position. + * + */ /* assure that edge distance threshold is at most 0.25px */ edge_distance_threshold = FT_MulFix( laxis->edge_distance_threshold, @@ -2129,7 +2208,7 @@ for ( seg = segments; seg < segment_limit; seg++ ) { AF_Edge found = NULL; - FT_Int ee; + FT_UInt ee; /* ignore too short segments, too wide ones, and, in this loop, */ @@ -2203,7 +2282,7 @@ for ( seg = segments; seg < segment_limit; seg++ ) { AF_Edge found = NULL; - FT_Int ee; + FT_UInt ee; if ( seg->dir != AF_DIR_NONE ) @@ -2237,17 +2316,17 @@ } - /******************************************************************/ - /* */ - /* 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 */ - /* */ - /******************************************************************/ + /******************************************************************* + * + * 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 */ @@ -2259,7 +2338,7 @@ */ { AF_Edge edges = axis->edges; - AF_Edge edge_limit = edges + axis->num_edges; + AF_Edge edge_limit = FT_OFFSET( edges, axis->num_edges ); AF_Edge edge; @@ -2309,9 +2388,9 @@ /* check for links -- if seg->serif is set, then seg->link must */ /* be ignored */ - is_serif = (FT_Bool)( seg->serif && - seg->serif->edge && - seg->serif->edge != edge ); + is_serif = FT_BOOL( seg->serif && + seg->serif->edge && + seg->serif->edge != edge ); if ( ( seg->link && seg->link->edge ) || is_serif ) { @@ -2426,7 +2505,7 @@ { AF_AxisHints axis = &hints->axis[AF_DIMENSION_VERT]; AF_Edge edge = axis->edges; - AF_Edge edge_limit = edge + axis->num_edges; + AF_Edge edge_limit = FT_OFFSET( edge, axis->num_edges ); AF_LatinAxis latin = &metrics->axis[AF_DIMENSION_VERT]; FT_Fixed scale = latin->scale; @@ -2536,8 +2615,10 @@ static FT_Error af_latin_hints_init( AF_GlyphHints hints, - AF_LatinMetrics metrics ) + AF_StyleMetrics metrics_ ) /* AF_LatinMetrics */ { + AF_LatinMetrics metrics = (AF_LatinMetrics)metrics_; + FT_Render_Mode mode; FT_UInt32 scaler_flags, other_flags; FT_Face face = metrics->root.scaler.face; @@ -2546,8 +2627,8 @@ af_glyph_hints_rescale( hints, (AF_StyleMetrics)metrics ); /* - * correct x_scale and y_scale if needed, since they may have - * been modified by `af_latin_metrics_scale_dim' above + * correct x_scale and y_scale if needed, since they may have + * 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; @@ -2557,30 +2638,25 @@ /* compute flags depending on render mode, etc. */ mode = metrics->root.scaler.render_mode; -#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; other_flags = 0; /* - * We snap the width of vertical stems for the monochrome and - * horizontal LCD rendering targets only. + * We snap the width of vertical stems for the monochrome and + * horizontal LCD rendering targets only. */ if ( mode == FT_RENDER_MODE_MONO || mode == FT_RENDER_MODE_LCD ) other_flags |= AF_LATIN_HINTS_HORZ_SNAP; /* - * We snap the width of horizontal stems for the monochrome and - * vertical LCD rendering targets only. + * We snap the width of horizontal stems for the monochrome and + * vertical LCD rendering targets only. */ if ( mode == FT_RENDER_MODE_MONO || mode == FT_RENDER_MODE_LCD_V ) other_flags |= AF_LATIN_HINTS_VERT_SNAP; /* - * We adjust stems to full pixels unless in `light' or `lcd' mode. + * We adjust stems to full pixels unless in `light' or `lcd' mode. */ if ( mode != FT_RENDER_MODE_LIGHT && mode != FT_RENDER_MODE_LCD ) other_flags |= AF_LATIN_HINTS_STEM_ADJUST; @@ -2589,22 +2665,16 @@ other_flags |= AF_LATIN_HINTS_MONO; /* - * In `light' or `lcd' mode we disable horizontal hinting completely. - * We also do it if the face is italic. + * In `light' or `lcd' mode we disable horizontal hinting completely. + * We also do it if the face is italic. * - * However, if warping is enabled (which only works in `light' hinting - * mode), advance widths get adjusted, too. + * However, if warping is enabled (which only works in `light' hinting + * mode), advance widths get adjusted, too. */ if ( mode == FT_RENDER_MODE_LIGHT || mode == FT_RENDER_MODE_LCD || ( face->style_flags & FT_STYLE_FLAG_ITALIC ) != 0 ) scaler_flags |= AF_SCALER_FLAG_NO_HORIZONTAL; -#ifdef AF_CONFIG_OPTION_USE_WARPER - /* get (global) warper flag */ - if ( !metrics->root.globals->module->warping ) - scaler_flags |= AF_SCALER_FLAG_NO_WARPER; -#endif - hints->scaler_flags = scaler_flags; hints->other_flags = other_flags; @@ -2890,10 +2960,11 @@ stem_edge->pos = base_edge->pos + fitted_width; - FT_TRACE5(( " LINK: edge %d (opos=%.2f) linked to %.2f," + FT_TRACE5(( " LINK: edge %td (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 )); + stem_edge - hints->axis[dim].edges, + (double)stem_edge->opos / 64, (double)stem_edge->pos / 64, + (double)dist / 64, (double)fitted_width / 64 )); } @@ -2930,19 +3001,14 @@ { AF_AxisHints axis = &hints->axis[dim]; AF_Edge edges = axis->edges; - AF_Edge edge_limit = edges + axis->num_edges; + AF_Edge edge_limit = FT_OFFSET( edges, axis->num_edges ); FT_PtrDist n_edges; AF_Edge edge; AF_Edge anchor = NULL; FT_Int has_serifs = 0; -#ifdef FT_CONFIG_OPTION_PIC - AF_FaceGlobals globals = hints->metrics->globals; -#endif - AF_StyleClass style_class = hints->metrics->style_class; - AF_ScriptClass script_class = AF_SCRIPT_CLASSES_GET - [style_class->script]; + AF_ScriptClass script_class = af_script_classes[style_class->script]; FT_Bool top_to_bottom_hinting = 0; @@ -2976,12 +3042,12 @@ edge2 = edge->link; /* - * If a stem contains both a neutral and a non-neutral blue zone, - * skip the neutral one. Otherwise, outlines with different - * directions might be incorrectly aligned at the same vertical - * position. + * If a stem contains both a neutral and a non-neutral blue zone, + * skip the neutral one. Otherwise, outlines with different + * directions might be incorrectly aligned at the same vertical + * position. * - * If we have two neutral blue zones, skip one of them. + * If we have two neutral blue zones, skip one of them. * */ if ( edge->blue_edge && edge2 && edge2->blue_edge ) @@ -3019,15 +3085,17 @@ #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 )); + FT_TRACE5(( " BLUE_ANCHOR: edge %td (opos=%.2f) snapped to %.2f," + " was %.2f (anchor=edge %td)\n", + edge1 - edges, + (double)edge1->opos / 64, (double)blue->fit / 64, + (double)edge1->pos / 64, edge - edges )); else - FT_TRACE5(( " BLUE: edge %d (opos=%.2f) snapped to %.2f," + FT_TRACE5(( " BLUE: edge %td (opos=%.2f) snapped to %.2f," " was %.2f\n", - edge1 - edges, edge1->opos / 64.0, blue->fit / 64.0, - edge1->pos / 64.0 )); + edge1 - edges, + (double)edge1->opos / 64, (double)blue->fit / 64, + (double)edge1->pos / 64 )); num_actions++; #endif @@ -3073,7 +3141,7 @@ /* this should not happen, but it's better to be safe */ if ( edge2->blue_edge ) { - FT_TRACE5(( " ASSERTION FAILED for edge %d\n", edge2 - edges )); + FT_TRACE5(( " ASSERTION FAILED for edge %td\n", edge2 - edges )); af_latin_align_linked_edge( hints, dim, edge2, edge ); edge->flags |= AF_EDGE_DONE; @@ -3141,11 +3209,11 @@ anchor = edge; edge->flags |= AF_EDGE_DONE; - FT_TRACE5(( " ANCHOR: edge %d (opos=%.2f) and %d (opos=%.2f)" + FT_TRACE5(( " ANCHOR: edge %td (opos=%.2f) and %td (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 )); + edge - edges, (double)edge->opos / 64, + edge2 - edges, (double)edge2->opos / 64, + (double)edge->pos / 64, (double)edge2->pos / 64 )); af_latin_align_linked_edge( hints, dim, edge, edge2 ); @@ -3170,9 +3238,9 @@ if ( edge2->flags & AF_EDGE_DONE ) { - FT_TRACE5(( " ADJUST: edge %d (pos=%.2f) moved to %.2f\n", - edge - edges, edge->pos / 64.0, - ( edge2->pos - cur_len ) / 64.0 )); + FT_TRACE5(( " ADJUST: edge %td (pos=%.2f) moved to %.2f\n", + edge - edges, (double)edge->pos / 64, + (double)( edge2->pos - cur_len ) / 64 )); edge->pos = edge2->pos - cur_len; } @@ -3211,11 +3279,11 @@ edge->pos = cur_pos1 - cur_len / 2; edge2->pos = cur_pos1 + cur_len / 2; - FT_TRACE5(( " STEM: edge %d (opos=%.2f) linked to %d (opos=%.2f)" + FT_TRACE5(( " STEM: edge %td (opos=%.2f) linked to %td (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 )); + edge - edges, (double)edge->opos / 64, + edge2 - edges, (double)edge2->opos / 64, + (double)edge->pos / 64, (double)edge2->pos / 64 )); } else @@ -3242,11 +3310,11 @@ edge->pos = ( delta1 < delta2 ) ? cur_pos1 : cur_pos2; edge2->pos = edge->pos + cur_len; - FT_TRACE5(( " STEM: edge %d (opos=%.2f) linked to %d (opos=%.2f)" + FT_TRACE5(( " STEM: edge %td (opos=%.2f) linked to %td (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 )); + edge - edges, (double)edge->opos / 64, + edge2 - edges, (double)edge2->opos / 64, + (double)edge->pos / 64, (double)edge2->pos / 64 )); } #ifdef FT_DEBUG_LEVEL_TRACE @@ -3265,10 +3333,10 @@ if ( edge->link && FT_ABS( edge->link->pos - edge[-1].pos ) > 16 ) { #ifdef FT_DEBUG_LEVEL_TRACE - FT_TRACE5(( " BOUND: edge %d (pos=%.2f) moved to %.2f\n", + FT_TRACE5(( " BOUND: edge %td (pos=%.2f) moved to %.2f\n", edge - edges, - edge->pos / 64.0, - edge[-1].pos / 64.0 )); + (double)edge->pos / 64, + (double)edge[-1].pos / 64 )); num_actions++; #endif @@ -3344,8 +3412,8 @@ if ( has_serifs || !anchor ) { /* - * now hint the remaining edges (serifs and single) in order - * to complete our processing + * now hint the remaining edges (serifs and single) in order + * to complete our processing */ for ( edge = edges; edge < edge_limit; edge++ ) { @@ -3367,19 +3435,20 @@ if ( delta < 64 + 16 ) { af_latin_align_serif_edge( hints, edge->serif, edge ); - FT_TRACE5(( " SERIF: edge %d (opos=%.2f) serif to %d (opos=%.2f)" + FT_TRACE5(( " SERIF: edge %td (opos=%.2f) serif to %td (opos=%.2f)" " aligned to %.2f\n", - edge - edges, edge->opos / 64.0, - edge->serif - edges, edge->serif->opos / 64.0, - edge->pos / 64.0 )); + edge - edges, (double)edge->opos / 64, + edge->serif - edges, (double)edge->serif->opos / 64, + (double)edge->pos / 64 )); } else if ( !anchor ) { edge->pos = FT_PIX_ROUND( edge->opos ); anchor = edge; - FT_TRACE5(( " SERIF_ANCHOR: edge %d (opos=%.2f)" + FT_TRACE5(( " SERIF_ANCHOR: edge %td (opos=%.2f)" " snapped to %.2f\n", - edge-edges, edge->opos / 64.0, edge->pos / 64.0 )); + edge - edges, + (double)edge->opos / 64, (double)edge->pos / 64 )); } else { @@ -3405,19 +3474,20 @@ after->pos - before->pos, after->opos - before->opos ); - 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 )); + FT_TRACE5(( " SERIF_LINK1: edge %td (opos=%.2f) snapped to %.2f" + " from %td (opos=%.2f)\n", + edge - edges, (double)edge->opos / 64, + (double)edge->pos / 64, + before - edges, (double)before->opos / 64 )); } else { edge->pos = anchor->pos + ( ( edge->opos - anchor->opos + 16 ) & ~31 ); - FT_TRACE5(( " SERIF_LINK2: edge %d (opos=%.2f)" + FT_TRACE5(( " SERIF_LINK2: edge %td (opos=%.2f)" " snapped to %.2f\n", - edge - edges, edge->opos / 64.0, edge->pos / 64.0 )); + edge - edges, + (double)edge->opos / 64, (double)edge->pos / 64 )); } } @@ -3435,10 +3505,10 @@ if ( edge->link && FT_ABS( edge->link->pos - edge[-1].pos ) > 16 ) { #ifdef FT_DEBUG_LEVEL_TRACE - FT_TRACE5(( " BOUND: edge %d (pos=%.2f) moved to %.2f\n", + FT_TRACE5(( " BOUND: edge %td (pos=%.2f) moved to %.2f\n", edge - edges, - edge->pos / 64.0, - edge[-1].pos / 64.0 )); + (double)edge->pos / 64, + (double)edge[-1].pos / 64 )); num_actions++; #endif @@ -3456,10 +3526,10 @@ if ( edge->link && FT_ABS( edge->link->pos - edge[-1].pos ) > 16 ) { #ifdef FT_DEBUG_LEVEL_TRACE - FT_TRACE5(( " BOUND: edge %d (pos=%.2f) moved to %.2f\n", + FT_TRACE5(( " BOUND: edge %td (pos=%.2f) moved to %.2f\n", edge - edges, - edge->pos / 64.0, - edge[1].pos / 64.0 )); + (double)edge->pos / 64, + (double)edge[1].pos / 64 )); num_actions++; #endif @@ -3484,8 +3554,10 @@ af_latin_hints_apply( FT_UInt glyph_index, AF_GlyphHints hints, FT_Outline* outline, - AF_LatinMetrics metrics ) + AF_StyleMetrics metrics_ ) /* AF_LatinMetrics */ { + AF_LatinMetrics metrics = (AF_LatinMetrics)metrics_; + FT_Error error; int dim; @@ -3526,24 +3598,6 @@ /* grid-fit the outline */ for ( dim = 0; dim < AF_DIMENSION_MAX; dim++ ) { -#ifdef AF_CONFIG_OPTION_USE_WARPER - if ( dim == AF_DIMENSION_HORZ && - metrics->root.scaler.render_mode == FT_RENDER_MODE_NORMAL && - AF_HINTS_DO_WARP( hints ) ) - { - AF_WarperRec warper; - FT_Fixed scale; - FT_Pos delta; - - - af_warper_compute( &warper, hints, (AF_Dimension)dim, - &scale, &delta ); - af_glyph_hints_scale_dim( hints, (AF_Dimension)dim, - scale, delta ); - continue; - } -#endif /* AF_CONFIG_OPTION_USE_WARPER */ - if ( ( dim == AF_DIMENSION_HORZ && AF_HINTS_DO_HORIZONTAL( hints ) ) || ( dim == AF_DIMENSION_VERT && AF_HINTS_DO_VERTICAL( hints ) ) ) { |