1
2#include "yuv.h"
3
4void
5yuv_sv411_to_cl422dc(int invert, void *data, void *yuv, int width, int height)
6{
7    struct yuv411 *in = data;
8    struct yuv422 *out_even = yuv;
9    struct yuv422 *out_odd = out_even + width / 2;
10    int i, j;                   /* counters */
11
12    for (i = height / 2; i--; ) {
13        for (j = width / 4; j--; ) {
14            YUV422_Y0(*out_even) = YUV411_Y00(*in);
15            YUV422_U0(*out_even) = YUV411_U00(*in);
16            YUV422_V0(*out_even) = YUV411_V00(*in);
17            YUV422_Y1(*out_even) = YUV411_Y01(*in);
18            out_even++;
19            YUV422_Y0(*out_even) = YUV411_Y02(*in);
20            YUV422_U0(*out_even) = YUV411_U02(*in);
21            YUV422_V0(*out_even) = YUV411_V02(*in);
22            YUV422_Y1(*out_even) = YUV411_Y03(*in);
23            out_even++;
24            YUV422_Y0(*out_odd) = YUV411_Y10(*in);
25            YUV422_U0(*out_odd) = YUV411_U10(*in);
26            YUV422_V0(*out_odd) = YUV411_V10(*in);
27            YUV422_Y1(*out_odd) = YUV411_Y11(*in);
28            out_odd++;
29            YUV422_Y0(*out_odd) = YUV411_Y12(*in);
30            YUV422_U0(*out_odd) = YUV411_U12(*in);
31            YUV422_V0(*out_odd) = YUV411_V12(*in);
32            YUV422_Y1(*out_odd) = YUV411_Y13(*in);
33            out_odd++;
34            in++;
35        }
36        out_even += width / 2;
37        out_odd += width / 2;
38    }
39}
40
41void
42yuv_sv411_to_cl422dc_quartersize(int invert, void *data, void *yuv,
43                                 int width, int height)
44{
45    int w4 = width / 4;         /* quarter of width is used often */
46    struct yuv411 *in_even = data;
47    struct yuv411 *in_odd = in_even + w4;
48    struct yuv422 *out_even = yuv;
49    struct yuv422 *out_odd = out_even + w4;
50    int i, j;                   /* counters */
51    int u, v;                   /* U and V values */
52
53    for (i = height / 4; i--; ) {
54        for (j = w4; j--; ) {
55            u = YUV411_U00(*in_even);
56            v = YUV411_V00(*in_even);
57
58            YUV422_Y0(*out_even) = YUV411_Y00(*in_even);
59            YUV422_U0(*out_even) = u;
60            YUV422_V0(*out_even) = v;
61            YUV422_Y1(*out_even) = YUV411_Y02(*in_even);
62
63            YUV422_Y0(*out_odd) = YUV411_Y10(*in_odd);
64            YUV422_U0(*out_odd) = u;
65            YUV422_V0(*out_odd) = v;
66            YUV422_Y1(*out_odd) = YUV411_Y12(*in_odd);
67
68            in_even++;
69            in_odd++;
70            out_even++;
71            out_odd++;
72        }
73        in_even += w4;
74        in_odd += w4;
75        out_even += w4;
76        out_odd += w4;
77    }
78}
79
80void
81yuv_sv411_to_cl422dc_sixteenthsize(int invert, void *data, void *yuv,
82                                   int width, int height)
83{
84    int w4_3 = 3 * width / 4; /* three quarters of width is used often */
85    int w8 = width / 8;         /* and so is one eighth */
86    struct yuv411 *in_even = data;
87    struct yuv411 *in_odd = in_even + width / 2;
88    struct yuv422 *out_even = yuv;
89    struct yuv422 *out_odd = out_even + w8;
90    int i, j;                   /* counters */
91    int u, v;                   /* U and V values */
92
93    for (i = height / 8; i--; ) {
94        for (j = w8; j--; ) {
95            u = YUV411_U00(in_even[0]);
96            v = YUV411_V00(in_even[0]);
97
98            YUV422_Y0(*out_even) = YUV411_Y00(in_even[0]);
99            YUV422_U0(*out_even) = u;
100            YUV422_V0(*out_even) = v;
101            YUV422_Y1(*out_even) = YUV411_Y00(in_even[1]);
102
103            YUV422_Y0(*out_odd) = YUV411_Y00(in_odd[0]);
104            YUV422_U0(*out_odd) = u;
105            YUV422_V0(*out_odd) = v;
106            YUV422_Y1(*out_odd) = YUV411_Y00(in_even[1]);
107
108            in_even += 2;
109            in_odd += 2;
110            out_even++;
111            out_odd++;
112        }
113        in_even += w4_3;
114        in_odd += w4_3;
115        out_even += w8;
116        out_odd += w8;
117    }
118}
119