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
|
/***********************************************************
Copyright 1991-1995 by Stichting Mathematisch Centrum, Amsterdam,
The Netherlands.
All Rights Reserved
Copyright (c) 2000, BeOpen.com.
Copyright (c) 1995-2000, Corporation for National Research Initiatives.
Copyright (c) 1990-1995, Stichting Mathematisch Centrum.
All rights reserved.
See the file "Misc/COPYRIGHT" for information on usage and
redistribution of this file, and for a DISCLAIMER OF ALL WARRANTIES.
******************************************************************/
#include "yuv.h"
void
yuv_sv411_to_cl422dc(int invert, void *data, void *yuv, int width, int height)
{
struct yuv411 *in = data;
struct yuv422 *out_even = yuv;
struct yuv422 *out_odd = out_even + width / 2;
int i, j; /* counters */
for (i = height / 2; i--; ) {
for (j = width / 4; j--; ) {
YUV422_Y0(*out_even) = YUV411_Y00(*in);
YUV422_U0(*out_even) = YUV411_U00(*in);
YUV422_V0(*out_even) = YUV411_V00(*in);
YUV422_Y1(*out_even) = YUV411_Y01(*in);
out_even++;
YUV422_Y0(*out_even) = YUV411_Y02(*in);
YUV422_U0(*out_even) = YUV411_U02(*in);
YUV422_V0(*out_even) = YUV411_V02(*in);
YUV422_Y1(*out_even) = YUV411_Y03(*in);
out_even++;
YUV422_Y0(*out_odd) = YUV411_Y10(*in);
YUV422_U0(*out_odd) = YUV411_U10(*in);
YUV422_V0(*out_odd) = YUV411_V10(*in);
YUV422_Y1(*out_odd) = YUV411_Y11(*in);
out_odd++;
YUV422_Y0(*out_odd) = YUV411_Y12(*in);
YUV422_U0(*out_odd) = YUV411_U12(*in);
YUV422_V0(*out_odd) = YUV411_V12(*in);
YUV422_Y1(*out_odd) = YUV411_Y13(*in);
out_odd++;
in++;
}
out_even += width / 2;
out_odd += width / 2;
}
}
void
yuv_sv411_to_cl422dc_quartersize(int invert, void *data, void *yuv,
int width, int height)
{
int w4 = width / 4; /* quarter of width is used often */
struct yuv411 *in_even = data;
struct yuv411 *in_odd = in_even + w4;
struct yuv422 *out_even = yuv;
struct yuv422 *out_odd = out_even + w4;
int i, j; /* counters */
int u, v; /* U and V values */
for (i = height / 4; i--; ) {
for (j = w4; j--; ) {
u = YUV411_U00(*in_even);
v = YUV411_V00(*in_even);
YUV422_Y0(*out_even) = YUV411_Y00(*in_even);
YUV422_U0(*out_even) = u;
YUV422_V0(*out_even) = v;
YUV422_Y1(*out_even) = YUV411_Y02(*in_even);
YUV422_Y0(*out_odd) = YUV411_Y10(*in_odd);
YUV422_U0(*out_odd) = u;
YUV422_V0(*out_odd) = v;
YUV422_Y1(*out_odd) = YUV411_Y12(*in_odd);
in_even++;
in_odd++;
out_even++;
out_odd++;
}
in_even += w4;
in_odd += w4;
out_even += w4;
out_odd += w4;
}
}
void
yuv_sv411_to_cl422dc_sixteenthsize(int invert, void *data, void *yuv,
int width, int height)
{
int w4_3 = 3 * width / 4; /* three quarters of width is used often */
int w8 = width / 8; /* and so is one eighth */
struct yuv411 *in_even = data;
struct yuv411 *in_odd = in_even + width / 2;
struct yuv422 *out_even = yuv;
struct yuv422 *out_odd = out_even + w8;
int i, j; /* counters */
int u, v; /* U and V values */
for (i = height / 8; i--; ) {
for (j = w8; j--; ) {
u = YUV411_U00(in_even[0]);
v = YUV411_V00(in_even[0]);
YUV422_Y0(*out_even) = YUV411_Y00(in_even[0]);
YUV422_U0(*out_even) = u;
YUV422_V0(*out_even) = v;
YUV422_Y1(*out_even) = YUV411_Y00(in_even[1]);
YUV422_Y0(*out_odd) = YUV411_Y00(in_odd[0]);
YUV422_U0(*out_odd) = u;
YUV422_V0(*out_odd) = v;
YUV422_Y1(*out_odd) = YUV411_Y00(in_even[1]);
in_even += 2;
in_odd += 2;
out_even++;
out_odd++;
}
in_even += w4_3;
in_odd += w4_3;
out_even += w8;
out_odd += w8;
}
}
|
