diff options
Diffstat (limited to 'src/3rdparty/freetype/src/autofit/aflatin2.c')
| -rw-r--r-- | src/3rdparty/freetype/src/autofit/aflatin2.c | 147 |
1 files changed, 74 insertions, 73 deletions
diff --git a/src/3rdparty/freetype/src/autofit/aflatin2.c b/src/3rdparty/freetype/src/autofit/aflatin2.c index 5c71378118..c601ab8d9a 100644 --- a/src/3rdparty/freetype/src/autofit/aflatin2.c +++ b/src/3rdparty/freetype/src/autofit/aflatin2.c @@ -3,22 +3,22 @@ /* marked as experimental. */ -/***************************************************************************/ -/* */ -/* aflatin2.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. */ -/* */ -/***************************************************************************/ +/**************************************************************************** + * + * aflatin2.c + * + * Auto-fitter hinting routines for latin writing system (body). + * + * Copyright (C) 2003-2019 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 FT_ADVANCES_H @@ -37,14 +37,14 @@ #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_aflatin2 +#define FT_COMPONENT aflatin2 FT_LOCAL_DEF( FT_Error ) @@ -265,7 +265,7 @@ /* Avoid single-point contours since they are never rasterized. */ /* In some fonts, they correspond to mark attachment points */ /* which are way outside of the glyph's real outline. */ - if ( last == first ) + if ( last <= first ) continue; if ( AF_LATIN_IS_TOP_BLUE( bb ) ) @@ -299,6 +299,7 @@ /* now check whether the point belongs to a straight or round */ /* segment; we first need to find in which contour the extremum */ /* lies, then inspect its previous and next points */ + if ( best_point >= 0 ) { FT_Pos best_x = points[best_point].x; FT_Int start, end, prev, next; @@ -358,8 +359,8 @@ 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; @@ -632,7 +633,7 @@ /* 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 ); if ( dim == AF_DIMENSION_VERT ) { @@ -1108,13 +1109,13 @@ : AF_DIR_RIGHT; /* - * We want to ignore very small (mostly serif) segments, we do that - * by ignoring those that whose length is less than a given fraction - * of the standard width. If there is no standard width, we ignore - * those that are less than a given size in pixels + * We want to ignore very small (mostly serif) segments, we do that + * by ignoring those that whose length is less than a given fraction + * of the standard width. If there is no standard width, we ignore + * those that are less than a given size in pixels * - * also, unlink serif segments that are linked to segments farther - * than 50% of the standard width + * also, unlink serif segments that are linked to segments farther + * than 50% of the standard width */ if ( dim == AF_DIMENSION_HORZ ) { @@ -1126,21 +1127,21 @@ else segment_length_threshold = 0; - /*********************************************************************/ - /* */ - /* 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. */ - /* */ - /* 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 */ - /* edge's properties. */ - /* */ - /* Note that the edges table is sorted along the segment/edge */ - /* position. */ - /* */ - /*********************************************************************/ + /********************************************************************** + * + * 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. + * + * 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 + * edge's properties. + * + * Note that the edges table is sorted along the segment/edge + * position. + * + */ edge_distance_threshold = FT_MulFix( laxis->edge_distance_threshold, scale ); @@ -1230,17 +1231,17 @@ } - /*********************************************************************/ - /* */ - /* Good, we will now compute each edge's properties according to */ - /* segments found on its position. Basically, these are: */ - /* */ - /* - 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 will now compute each edge's properties according to + * segments found on its position. Basically, these are: + * + * - 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 */ @@ -1302,9 +1303,9 @@ /* 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 ) { @@ -1524,8 +1525,8 @@ af_glyph_hints_rescale( hints, (AF_StyleMetrics)metrics ); /* - * correct x_scale and y_scale if needed, since they may have - * been modified `af_latin2_metrics_scale_dim' above + * correct x_scale and y_scale if needed, since they may have + * been modified `af_latin2_metrics_scale_dim' above */ hints->x_scale = metrics->axis[AF_DIMENSION_HORZ].scale; hints->x_delta = metrics->axis[AF_DIMENSION_HORZ].delta; @@ -1544,21 +1545,21 @@ 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; @@ -1567,8 +1568,8 @@ 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. */ if ( mode == FT_RENDER_MODE_LIGHT || mode == FT_RENDER_MODE_LCD || ( face->style_flags & FT_STYLE_FLAG_ITALIC ) != 0 ) @@ -2233,8 +2234,8 @@ 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++ ) { |