2 * Copyright (C) 2009 Grigori Goronzy <greg@geekmind.org>
4 * This file is part of libass.
6 * Permission to use, copy, modify, and distribute this software for any
7 * purpose with or without fee is hereby granted, provided that the above
8 * copyright notice and this permission notice appear in all copies.
10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
19 #ifndef LIBASS_DRAWING_H
20 #define LIBASS_DRAWING_H
27 #define DRAWING_INITIAL_SIZE 256
40 typedef struct ass_drawing_token_s {
41 enum ass_token_type type;
43 struct ass_drawing_token_s *next;
44 struct ass_drawing_token_s *prev;
45 } ass_drawing_token_t;
47 typedef struct ass_drawing_s {
48 char *text; // drawing string
50 int scale; // scale (1-64) for subpixel accuracy
51 double pbo; // drawing will be shifted in y direction by this amount
52 double scale_x; // FontScaleX
53 double scale_y; // FontScaleY
55 int desc; // descender
56 FT_OutlineGlyph glyph; // the "fake" glyph created for later rendering
57 int hash; // hash value (for caching)
60 FT_Library ftlibrary; // FT library instance, needed for font ops
61 ass_library_t *library;
62 int size; // current buffer size
63 ass_drawing_token_t *tokens; // tokenized drawing
64 int max_points; // current maximum size
70 ass_drawing_t *ass_drawing_new(void *fontconfig_priv, ass_font_t *font,
71 ass_hinting_t hint, FT_Library lib);
72 void ass_drawing_free(ass_drawing_t* drawing);
73 void ass_drawing_add_char(ass_drawing_t* drawing, char symbol);
74 void ass_drawing_hash(ass_drawing_t* drawing);
75 FT_OutlineGlyph *ass_drawing_parse(ass_drawing_t *drawing);
77 #endif /* LIBASS_DRAWING_H */