File: conversions.h

package info (click to toggle)
coriander 1.0.1-3.1
  • links: PTS
  • area: main
  • in suites: etch, etch-m68k
  • size: 1,376 kB
  • ctags: 943
  • sloc: ansic: 10,305; sh: 3,030; makefile: 131
file content (152 lines) | stat: -rw-r--r-- 4,406 bytes parent folder | download
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
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
/*
 * Copyright (C) 2000-2004 Damien Douxchamps  <ddouxchamps@users.sf.net>
 *                         Dan Dennedy  <dan@dennedy.org>
 *
 * 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 */

#ifndef __CONVERSIONS_H__
#define __CONVERSIONS_H__

typedef enum
{
  NO_BAYER_DECODING=0,
  BAYER_DECODING_NEAREST,
  BAYER_DECODING_EDGE_SENSE,
  BAYER_DECODING_DOWNSAMPLE,
  BAYER_DECODING_SIMPLE
} bayer_decoding_t;

typedef enum
{
  NO_STEREO_DECODING=0,
  STEREO_DECODING_INTERLACED,
  STEREO_DECODING_FIELD
} stereo_decoding_t;

enum
{
  OVERLAY_BYTE_ORDER_YUYV=0,
  OVERLAY_BYTE_ORDER_UYVY
};

// color conversion functions from Bart Nabbe.
// corrected by Damien: bad coeficients in YUV2RGB
#define YUV2RGB(y, u, v, r, g, b)\
  r = y + ((v*1436) >> 10);\
  g = y - ((u*352 + v*731) >> 10);\
  b = y + ((u*1814) >> 10);\
  r = r < 0 ? 0 : r;\
  g = g < 0 ? 0 : g;\
  b = b < 0 ? 0 : b;\
  r = r > 255 ? 255 : r;\
  g = g > 255 ? 255 : g;\
  b = b > 255 ? 255 : b
  

#define RGB2YUV(r, g, b, y, u, v)\
  y = (306*r + 601*g + 117*b)  >> 10;\
  u = ((-172*r - 340*g + 512*b) >> 10)  + 128;\
  v = ((512*r - 429*g - 83*b) >> 10) + 128;\
  y = y < 0 ? 0 : y;\
  u = u < 0 ? 0 : u;\
  v = v < 0 ? 0 : v;\
  y = y > 255 ? 255 : y;\
  u = u > 255 ? 255 : u;\
  v = v > 255 ? 255 : v

#define REPLPIX(im, pix, index)\
  im[index]=pix[0];\
  im[index+1]=pix[1];\
  im[index+2]=pix[2];\
  im[index+3]=pix[3]

#define INVPIX(im, index)\
  im[index]=255-im[index];\
  im[index+1]=255-im[index+1];\
  im[index+2]=255-im[index+2];\
  im[index+3]=255-im[index+3]


// UYVY <-> YUYV
void
uyvy2yuyv (unsigned char *src, unsigned char *dest, unsigned long long int NumPixels, int byte_order);

void
yuyv2uyvy (unsigned char *src, unsigned char *dest, unsigned long long int NumPixels, int byte_order);

// XXX -> UYVY
void
uyyvyy2uyvy (unsigned char *src, unsigned char *dest, unsigned long long int NumPixels, int byte_order);

void
uyv2uyvy (unsigned char *src, unsigned char *dest, unsigned long long int NumPixels, int byte_order);

void
y2uyvy (unsigned char *src, unsigned char *dest, 
	unsigned long src_width, unsigned long src_height,
	unsigned long dest_pitch, int byte_order);

void
y162uyvy (unsigned char *src, unsigned char *dest, unsigned long long int NumPixels, int bits, int byte_order);

void
y162y (unsigned char *src, unsigned char *dest, unsigned long long int NumPixels, int bits);

void
rgb2uyvy (unsigned char *src, unsigned char *dest, unsigned long long int NumPixels, int byte_order);

void
rgb482uyvy (unsigned char *src, unsigned char *dest, unsigned long long int NumPixels, int byte_order);

// XXX -> RGB
void
rgb482rgb (unsigned char *src, unsigned char *dest, unsigned long long int NumPixels);

void
uyv2rgb (unsigned char *src, unsigned char *dest, unsigned long long int NumPixels);

void
uyvy2rgb (unsigned char *src, unsigned char *dest, unsigned long long int NumPixels);

void
uyyvyy2rgb (unsigned char *src, unsigned char *dest, unsigned long long int NumPixels);

void
y2rgb (unsigned char *src, unsigned char *dest, unsigned long long int NumPixels);

void
y162rgb (unsigned char *src, unsigned char *dest, unsigned long long int NumPixels, int bits);

// BAYER -> RGB
void
BayerNearestNeighbor(unsigned char *src, unsigned char *dest, int sx, int sy, int type);

void
BayerEdgeSense(unsigned char *src, unsigned char *dest, int sx, int sy, int type);

void
ClearBorders(unsigned char* dest, int sx, int sy, int w);

void
BayerDownsample(unsigned char *src, unsigned char *dest, int sx, int sy, int type);

void
BayerSimple(unsigned char *src, unsigned char *dest, int sx, int sy, int type);

void
StereoDecode(unsigned char *src, unsigned char *dest, unsigned long long int NumPixels);

#endif // __CONVERSIONS_H__