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
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
|
/*
* Copyright (C) 2007 Marc Hoffman <marc.hoffman@analog.com>
*
* Blackfin video color space converter operations
* convert I420 YV12 to RGB in various formats
*
* This file is part of Libav.
*
* Libav is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* Libav 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with Libav; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <stdint.h>
#include "config.h"
#include "libavutil/attributes.h"
#include "libavutil/bfin/attributes.h"
#include "libswscale/swscale_internal.h"
void ff_bfin_yuv2rgb555_line(const uint8_t *Y, const uint8_t *U,
const uint8_t *V, uint8_t *out,
int w, uint32_t *coeffs) attribute_l1_text;
void ff_bfin_yuv2rgb565_line(const uint8_t *Y, const uint8_t *U,
const uint8_t *V, uint8_t *out,
int w, uint32_t *coeffs) attribute_l1_text;
void ff_bfin_yuv2rgb24_line(const uint8_t *Y, const uint8_t *U,
const uint8_t *V, uint8_t *out,
int w, uint32_t *coeffs) attribute_l1_text;
typedef void (*ltransform)(const uint8_t *Y, const uint8_t *U, const uint8_t *V,
uint8_t *out, int w, uint32_t *coeffs);
static void bfin_prepare_coefficients(SwsContext *c, int rgb, int masks)
{
int oy;
oy = c->yOffset & 0xffff;
oy = oy >> 3; // keep everything U8.0 for offset calculation
c->oc = 128 * 0x01010101U;
c->oy = oy * 0x01010101U;
/* copy 64bit vector coeffs down to 32bit vector coeffs */
c->cy = c->yCoeff;
c->zero = 0;
if (rgb) {
c->crv = c->vrCoeff;
c->cbu = c->ubCoeff;
c->cgu = c->ugCoeff;
c->cgv = c->vgCoeff;
} else {
c->crv = c->ubCoeff;
c->cbu = c->vrCoeff;
c->cgu = c->vgCoeff;
c->cgv = c->ugCoeff;
}
if (masks == 555) {
c->rmask = 0x001f * 0x00010001U;
c->gmask = 0x03e0 * 0x00010001U;
c->bmask = 0x7c00 * 0x00010001U;
} else if (masks == 565) {
c->rmask = 0x001f * 0x00010001U;
c->gmask = 0x07e0 * 0x00010001U;
c->bmask = 0xf800 * 0x00010001U;
}
}
static int core_yuv420_rgb(SwsContext *c, const uint8_t **in, int *instrides,
int srcSliceY, int srcSliceH, uint8_t **oplanes,
int *outstrides, ltransform lcscf,
int rgb, int masks)
{
const uint8_t *py, *pu, *pv;
uint8_t *op;
int w = instrides[0];
int h2 = srcSliceH >> 1;
int i;
bfin_prepare_coefficients(c, rgb, masks);
py = in[0];
pu = in[1 + (1 ^ rgb)];
pv = in[1 + (0 ^ rgb)];
op = oplanes[0] + srcSliceY * outstrides[0];
for (i = 0; i < h2; i++) {
lcscf(py, pu, pv, op, w, &c->oy);
py += instrides[0];
op += outstrides[0];
lcscf(py, pu, pv, op, w, &c->oy);
py += instrides[0];
pu += instrides[1];
pv += instrides[2];
op += outstrides[0];
}
return srcSliceH;
}
static int bfin_yuv420_rgb555(SwsContext *c, const uint8_t **in, int *instrides,
int srcSliceY, int srcSliceH,
uint8_t **oplanes, int *outstrides)
{
return core_yuv420_rgb(c, in, instrides, srcSliceY, srcSliceH, oplanes,
outstrides, ff_bfin_yuv2rgb555_line, 1, 555);
}
static int bfin_yuv420_bgr555(SwsContext *c, const uint8_t **in, int *instrides,
int srcSliceY, int srcSliceH,
uint8_t **oplanes, int *outstrides)
{
return core_yuv420_rgb(c, in, instrides, srcSliceY, srcSliceH, oplanes,
outstrides, ff_bfin_yuv2rgb555_line, 0, 555);
}
static int bfin_yuv420_rgb24(SwsContext *c, const uint8_t **in, int *instrides,
int srcSliceY, int srcSliceH,
uint8_t **oplanes, int *outstrides)
{
return core_yuv420_rgb(c, in, instrides, srcSliceY, srcSliceH, oplanes,
outstrides, ff_bfin_yuv2rgb24_line, 1, 888);
}
static int bfin_yuv420_bgr24(SwsContext *c, const uint8_t **in, int *instrides,
int srcSliceY, int srcSliceH,
uint8_t **oplanes, int *outstrides)
{
return core_yuv420_rgb(c, in, instrides, srcSliceY, srcSliceH, oplanes,
outstrides, ff_bfin_yuv2rgb24_line, 0, 888);
}
static int bfin_yuv420_rgb565(SwsContext *c, const uint8_t **in, int *instrides,
int srcSliceY, int srcSliceH,
uint8_t **oplanes, int *outstrides)
{
return core_yuv420_rgb(c, in, instrides, srcSliceY, srcSliceH, oplanes,
outstrides, ff_bfin_yuv2rgb565_line, 1, 565);
}
static int bfin_yuv420_bgr565(SwsContext *c, const uint8_t **in, int *instrides,
int srcSliceY, int srcSliceH,
uint8_t **oplanes, int *outstrides)
{
return core_yuv420_rgb(c, in, instrides, srcSliceY, srcSliceH, oplanes,
outstrides, ff_bfin_yuv2rgb565_line, 0, 565);
}
av_cold SwsFunc ff_yuv2rgb_init_bfin(SwsContext *c)
{
SwsFunc f;
switch (c->dstFormat) {
case AV_PIX_FMT_RGB555:
f = bfin_yuv420_rgb555;
break;
case AV_PIX_FMT_BGR555:
f = bfin_yuv420_bgr555;
break;
case AV_PIX_FMT_RGB565:
f = bfin_yuv420_rgb565;
break;
case AV_PIX_FMT_BGR565:
f = bfin_yuv420_bgr565;
break;
case AV_PIX_FMT_RGB24:
f = bfin_yuv420_rgb24;
break;
case AV_PIX_FMT_BGR24:
f = bfin_yuv420_bgr24;
break;
default:
return 0;
}
av_log(c, AV_LOG_INFO, "BlackFin accelerated color space converter %s\n",
sws_format_name(c->dstFormat));
return f;
}
|
