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
{
43 struct ass_drawing_token
*next
;
44 struct ass_drawing_token
*prev
;
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_Outline outline
; // target outline
57 FT_Vector advance
; // advance (from cbox)
58 int hash
; // hash value (for caching)
61 FT_Library ftlibrary
; // needed for font ops
63 int size
; // current buffer size
64 ASS_DrawingToken
*tokens
; // tokenized drawing
65 int max_points
; // current maximum size
69 FT_BBox cbox
; // bounding box, or let's say... VSFilter's idea of it
72 ASS_Drawing
*ass_drawing_new(ASS_Library
*lib
, FT_Library ftlib
);
73 void ass_drawing_free(ASS_Drawing
* drawing
);
74 void ass_drawing_add_char(ASS_Drawing
* drawing
, char symbol
);
75 void ass_drawing_hash(ASS_Drawing
* drawing
);
76 FT_Outline
*ass_drawing_parse(ASS_Drawing
*drawing
, int raw_mode
);
78 #endif /* LIBASS_DRAWING_H */