use context in av_log
[ffmpeg.git] / libswscale / yuv2rgb_bfin.c
1 /*
2  * Copyright (C) 2007 Marc Hoffman <marc.hoffman@analog.com>
3  *                    April 20, 2007
4  *
5  * Blackfin Video Color Space Converters Operations
6  *  convert I420 YV12 to RGB in various formats,
7  *
8  * This file is part of FFmpeg.
9  *
10  * FFmpeg is free software; you can redistribute it and/or
11  * modify it under the terms of the GNU Lesser General Public
12  * License as published by the Free Software Foundation; either
13  * version 2.1 of the License, or (at your option) any later version.
14  *
15  * FFmpeg is distributed in the hope that it will be useful,
16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
18  * Lesser General Public License for more details.
19  *
20  * You should have received a copy of the GNU Lesser General Public
21  * License along with FFmpeg; if not, write to the Free Software
22  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
23  */
24
25 #include <stdio.h>
26 #include <stdlib.h>
27 #include <string.h>
28 #include <inttypes.h>
29 #include <assert.h>
30 #include "config.h"
31 #ifdef HAVE_MALLOC_H
32 #include <malloc.h>
33 #endif
34 #include <unistd.h>
35 #include "rgb2rgb.h"
36 #include "swscale.h"
37 #include "swscale_internal.h"
38
39
40 #define L1CODE __attribute__ ((l1_text))
41
42 extern void ff_bfin_yuv2rgb555_line (uint8_t *Y, uint8_t *U, uint8_t *V, uint8_t *out,
43                                      int w, uint32_t *coeffs) L1CODE;
44
45 extern void ff_bfin_yuv2rgb565_line (uint8_t *Y, uint8_t *U, uint8_t *V, uint8_t *out,
46                                      int w, uint32_t *coeffs) L1CODE;
47
48 extern void ff_bfin_yuv2rgb24_line (uint8_t *Y, uint8_t *U, uint8_t *V, uint8_t *out,
49                                     int w, uint32_t *coeffs) L1CODE;
50
51 typedef void (* ltransform_t)(uint8_t *Y, uint8_t *U, uint8_t *V, uint8_t *out,
52                               int w, uint32_t *coeffs);
53
54
55 static void bfin_prepare_coefficients (SwsContext *c, int rgb, int masks)
56 {
57     int oy;
58     oy      = c->yOffset&0xffff;
59     oy      = oy >> 3; // keep everything U8.0 for offset calculation
60
61     c->oc   = 128*0x01010101U;
62     c->oy   =  oy*0x01010101U;
63
64     /* copy 64bit vector coeffs down to 32bit vector coeffs */
65     c->cy  = c->yCoeff;
66     c->zero = 0;
67
68     if (rgb) {
69         c->crv = c->vrCoeff;
70         c->cbu = c->ubCoeff;
71         c->cgu = c->ugCoeff;
72         c->cgv = c->vgCoeff;
73     } else {
74         c->crv = c->ubCoeff;
75         c->cbu = c->vrCoeff;
76         c->cgu = c->vgCoeff;
77         c->cgv = c->ugCoeff;
78     }
79
80
81     if (masks == 555) {
82         c->rmask = 0x001f * 0x00010001U;
83         c->gmask = 0x03e0 * 0x00010001U;
84         c->bmask = 0x7c00 * 0x00010001U;
85     } else if (masks == 565) {
86         c->rmask = 0x001f * 0x00010001U;
87         c->gmask = 0x07e0 * 0x00010001U;
88         c->bmask = 0xf800 * 0x00010001U;
89     }
90 }
91
92 static int core_yuv420_rgb (SwsContext *c,
93                             uint8_t **in, int *instrides,
94                             int srcSliceY, int srcSliceH,
95                             uint8_t **oplanes, int *outstrides,
96                             ltransform_t lcscf, int rgb, int masks)
97 {
98     uint8_t *py,*pu,*pv,*op;
99     int w  = instrides[0];
100     int h2 = srcSliceH>>1;
101     int i;
102
103     bfin_prepare_coefficients (c, rgb, masks);
104
105     py = in[0];
106     pu = in[1+(1^rgb)];
107     pv = in[1+(0^rgb)];
108
109     op = oplanes[0] + srcSliceY*outstrides[0];
110
111     for (i=0;i<h2;i++) {
112
113         lcscf (py, pu, pv, op, w, &c->oy);
114
115         py += instrides[0];
116         op += outstrides[0];
117
118         lcscf (py, pu, pv, op, w, &c->oy);
119
120         py += instrides[0];
121         pu += instrides[1];
122         pv += instrides[2];
123         op += outstrides[0];
124     }
125
126     return srcSliceH;
127 }
128
129
130 static int bfin_yuv420_rgb555 (SwsContext *c,
131                                uint8_t **in, int *instrides,
132                                int srcSliceY, int srcSliceH,
133                                uint8_t **oplanes, int *outstrides)
134 {
135     return core_yuv420_rgb (c, in, instrides, srcSliceY, srcSliceH, oplanes, outstrides,
136                             ff_bfin_yuv2rgb555_line, 1, 555);
137 }
138
139 static int bfin_yuv420_bgr555 (SwsContext *c,
140                                uint8_t **in, int *instrides,
141                                int srcSliceY, int srcSliceH,
142                                uint8_t **oplanes, int *outstrides)
143 {
144     return core_yuv420_rgb (c, in, instrides, srcSliceY, srcSliceH, oplanes, outstrides,
145                             ff_bfin_yuv2rgb555_line, 0, 555);
146 }
147
148 static int bfin_yuv420_rgb24 (SwsContext *c,
149                               uint8_t **in, int *instrides,
150                               int srcSliceY, int srcSliceH,
151                               uint8_t **oplanes, int *outstrides)
152 {
153     return core_yuv420_rgb (c, in, instrides, srcSliceY, srcSliceH, oplanes, outstrides,
154                             ff_bfin_yuv2rgb24_line, 1, 888);
155 }
156
157 static int bfin_yuv420_bgr24 (SwsContext *c,
158                               uint8_t **in, int *instrides,
159                               int srcSliceY, int srcSliceH,
160                               uint8_t **oplanes, int *outstrides)
161 {
162     return core_yuv420_rgb (c, in, instrides, srcSliceY, srcSliceH, oplanes, outstrides,
163                             ff_bfin_yuv2rgb24_line, 0, 888);
164 }
165
166 static int bfin_yuv420_rgb565 (SwsContext *c,
167                                uint8_t **in, int *instrides,
168                                int srcSliceY, int srcSliceH,
169                                uint8_t **oplanes, int *outstrides)
170 {
171     return core_yuv420_rgb (c, in, instrides, srcSliceY, srcSliceH, oplanes, outstrides,
172                             ff_bfin_yuv2rgb565_line, 1, 565);
173 }
174
175 static int bfin_yuv420_bgr565 (SwsContext *c,
176                                uint8_t **in, int *instrides,
177                                int srcSliceY, int srcSliceH,
178                                uint8_t **oplanes, int *outstrides)
179 {
180     return core_yuv420_rgb (c, in, instrides, srcSliceY, srcSliceH, oplanes, outstrides,
181                             ff_bfin_yuv2rgb565_line, 0, 565);
182 }
183
184
185 SwsFunc ff_bfin_yuv2rgb_get_func_ptr (SwsContext *c)
186 {
187     SwsFunc f;
188
189     switch(c->dstFormat) {
190     case PIX_FMT_RGB555: f = bfin_yuv420_rgb555; break;
191     case PIX_FMT_BGR555: f = bfin_yuv420_bgr555; break;
192     case PIX_FMT_RGB565: f = bfin_yuv420_rgb565; break;
193     case PIX_FMT_BGR565: f = bfin_yuv420_bgr565; break;
194     case PIX_FMT_RGB24:  f = bfin_yuv420_rgb24;  break;
195     case PIX_FMT_BGR24:  f = bfin_yuv420_bgr24;  break;
196     default:
197         return 0;
198     }
199
200     av_log(c, AV_LOG_INFO, "BlackFin Accelerated Color Space Converter %s\n",
201            sws_format_name (c->dstFormat));
202
203     return f;
204 }