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
60
61
62
63
64
65
66
67
68
69
70
71
72
73
|
/*
(C) 2001 Nemosoft Unv. nemosoft@smcc.demon.nl
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/* 'Viewport' conversion routines. These functions convert from one colour
space to another, taking into account that the source image has a smaller
size than the view, and is placed inside the view:
+-------view.x------------+
| |
| +---image.x---+ |
| | | |
| | | |
| +-------------+ |
| |
+-------------------------+
The image should always be smaller than the view. The offset (top-left
corner of the image) should be precomputed, so you can place the image
anywhere in the view.
The functions take these parameters:
- width image width (in pixels)
- height image height (in pixels)
- plus view width (in pixels)
*src pointer at start of image
*dst pointer at offset (!) in view
*/
#ifndef VCVT_H
#define VCVT_H
#ifdef __cplusplus
extern "C" {
#endif
/* Functions in vcvt_i386.S/vcvt_c.c */
/* 4:2:0 YUV interlaced to RGB/BGR */
void vcvt_420i_bgr24(int width, int height, int plus, void *src, void *dst);
void vcvt_420i_rgb24(int width, int height, int plus, void *src, void *dst);
void vcvt_420i_bgr32(int width, int height, int plus, void *src, void *dst);
void vcvt_420i_rgb32(int width, int height, int plus, void *src, void *dst);
/* Go from 420i to other yuv formats */
void vcvt_420i_420p(int width, int height, int plus, void *src, void *dsty, void *dstu, void *dstv);
void vcvt_420i_yuyv(int width, int height, int plus, void *src, void *dst);
#if 0
#endif
#ifdef __cplusplus
}
#endif
#endif
|
