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90bfcc1fbd
There were two errors: * We subtracted half the line width instead of adding it to the baseline * We rounded the line positioning and thickness before the positioning calculation. In particular, rounding the thickness before using it to adjust the position was wrong. Now we round just before the pixman call.
81 lines
1.5 KiB
C
81 lines
1.5 KiB
C
#pragma once
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#include <stdbool.h>
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#include <threads.h>
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#include <ft2build.h>
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#include FT_FREETYPE_H
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#include FT_LCD_FILTER_H
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#include <fontconfig/fontconfig.h>
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#include <pixman.h>
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#include "tllist.h"
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//#include "terminal.h"
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typedef tll(const char *) font_list_t;
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struct glyph {
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wchar_t wc;
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int cols;
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pixman_image_t *pix;
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int x;
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int y;
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int width;
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int height;
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bool valid;
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};
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typedef tll(struct glyph) hash_entry_t;
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struct font_fallback {
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char *pattern;
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struct font *font;
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};
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struct font {
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char *name;
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mtx_t lock;
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FT_Face face;
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int load_flags;
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int render_flags;
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FT_LcdFilter lcd_filter;
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double pixel_size_fixup; /* Scale factor - should only be used with ARGB32 glyphs */
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bool bgr; /* True for FC_RGBA_BGR and FC_RGBA_VBGR */
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/* font extents */
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int height;
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int descent;
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int ascent;
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int max_x_advance;
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struct {
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double position;
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double thickness;
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} underline;
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struct {
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double position;
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double thickness;
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} strikeout;
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bool is_fallback;
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tll(struct font_fallback) fallbacks;
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size_t ref_counter;
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/* Fields below are only valid for non-fallback fonts */
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FcPattern *fc_pattern;
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FcFontSet *fc_fonts;
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int fc_idx;
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struct font **fc_loaded_fallbacks; /* fc_fonts->nfont array */
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hash_entry_t **glyph_cache;
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};
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struct font *font_from_name(font_list_t names, const char *attributes);
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const struct glyph *font_glyph_for_wc(struct font *font, wchar_t wc);
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void font_destroy(struct font *font);
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