1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
|
/*
* Copyright (C) 2006 Evgeniy Stepanov <eugeni.stepanov@gmail.com>
*
* This file is part of libass.
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#ifndef LIBASS_BITMAP_H
#define LIBASS_BITMAP_H
#include <ft2build.h>
#include FT_GLYPH_H
#include "ass.h"
typedef struct ass_synth_priv ASS_SynthPriv;
ASS_SynthPriv *ass_synth_init(double);
void ass_synth_done(ASS_SynthPriv *priv);
typedef struct {
int left, top;
int w, h; // width, height
int stride;
unsigned char *buffer; // w x h buffer
} Bitmap;
Bitmap *outline_to_bitmap(ASS_Library *library, FT_Library ftlib,
FT_Outline *outline, int bord);
/**
* \brief perform glyph rendering
* \param glyph original glyph
* \param outline_glyph "border" glyph, produced from original by FreeType's glyph stroker
* \param bm_g out: pointer to the bitmap of original glyph is returned here
* \param bm_o out: pointer to the bitmap of outline (border) glyph is returned here
* \param bm_g out: pointer to the bitmap of glyph shadow is returned here
* \param be 1 = produces blurred bitmaps, 0 = normal bitmaps
* \param border_visible whether border is visible if border_style is 3
*/
int outline_to_bitmap3(ASS_Library *library, ASS_SynthPriv *priv_blur,
FT_Library ftlib, FT_Outline *outline, FT_Outline *border,
Bitmap **bm_g, Bitmap **bm_o, Bitmap **bm_s,
int be, double blur_radius, FT_Vector shadow_offset,
int border_style, int border_visible);
void ass_free_bitmap(Bitmap *bm);
#endif /* LIBASS_BITMAP_H */
|
