2 * Copyright (C) 2007 Marc Hoffman <marc.hoffman@analog.com>
5 * Blackfin Video Color Space Converters Operations
6 * convert I420 YV12 to RGB in various formats,
8 * This file is part of FFmpeg.
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.
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.
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
37 #include "swscale_internal.h"
40 #define L1CODE __attribute__ ((l1_text))
45 extern void ff_bfin_yuv2rgb555_line (uint8_t *Y, uint8_t *U, uint8_t *V, uint8_t *out,
46 int w, uint32_t *coeffs) L1CODE;
48 extern void ff_bfin_yuv2rgb565_line (uint8_t *Y, uint8_t *U, uint8_t *V, uint8_t *out,
49 int w, uint32_t *coeffs) L1CODE;
51 extern void ff_bfin_yuv2rgb24_line (uint8_t *Y, uint8_t *U, uint8_t *V, uint8_t *out,
52 int w, uint32_t *coeffs) L1CODE;
54 typedef void (* ltransform_t)(uint8_t *Y, uint8_t *U, uint8_t *V, uint8_t *out,
55 int w, uint32_t *coeffs);
58 static void bfin_prepare_coefficients (SwsContext *c, int rgb, int masks)
61 oy = c->yOffset&0xffff;
62 oy = oy >> 3; // keep everything U8.0 for offset calculation
64 c->oc = 128*0x01010101U;
65 c->oy = oy*0x01010101U;
67 /* copy 64bit vector coeffs down to 32bit vector coeffs */
85 c->rmask = 0x001f * 0x00010001U;
86 c->gmask = 0x03e0 * 0x00010001U;
87 c->bmask = 0x7c00 * 0x00010001U;
88 } else if (masks == 565) {
89 c->rmask = 0x001f * 0x00010001U;
90 c->gmask = 0x07e0 * 0x00010001U;
91 c->bmask = 0xf800 * 0x00010001U;
95 static int core_yuv420_rgb (SwsContext *c,
96 uint8_t **in, int *instrides,
97 int srcSliceY, int srcSliceH,
98 uint8_t **oplanes, int *outstrides,
99 ltransform_t lcscf, int rgb, int masks)
101 uint8_t *py,*pu,*pv,*op;
102 int w = instrides[0];
103 int h2 = srcSliceH>>1;
106 bfin_prepare_coefficients (c, rgb, masks);
112 op = oplanes[0] + srcSliceY*outstrides[0];
116 lcscf (py, pu, pv, op, w, &c->oy);
121 lcscf (py, pu, pv, op, w, &c->oy);
133 static int bfin_yuv420_rgb555 (SwsContext *c,
134 uint8_t **in, int *instrides,
135 int srcSliceY, int srcSliceH,
136 uint8_t **oplanes, int *outstrides)
138 return core_yuv420_rgb (c, in, instrides, srcSliceY, srcSliceH, oplanes, outstrides,
139 ff_bfin_yuv2rgb555_line, 1, 555);
142 static int bfin_yuv420_bgr555 (SwsContext *c,
143 uint8_t **in, int *instrides,
144 int srcSliceY, int srcSliceH,
145 uint8_t **oplanes, int *outstrides)
147 return core_yuv420_rgb (c, in, instrides, srcSliceY, srcSliceH, oplanes, outstrides,
148 ff_bfin_yuv2rgb555_line, 0, 555);
151 static int bfin_yuv420_rgb24 (SwsContext *c,
152 uint8_t **in, int *instrides,
153 int srcSliceY, int srcSliceH,
154 uint8_t **oplanes, int *outstrides)
156 return core_yuv420_rgb (c, in, instrides, srcSliceY, srcSliceH, oplanes, outstrides,
157 ff_bfin_yuv2rgb24_line, 1, 888);
160 static int bfin_yuv420_bgr24 (SwsContext *c,
161 uint8_t **in, int *instrides,
162 int srcSliceY, int srcSliceH,
163 uint8_t **oplanes, int *outstrides)
165 return core_yuv420_rgb (c, in, instrides, srcSliceY, srcSliceH, oplanes, outstrides,
166 ff_bfin_yuv2rgb24_line, 0, 888);
169 static int bfin_yuv420_rgb565 (SwsContext *c,
170 uint8_t **in, int *instrides,
171 int srcSliceY, int srcSliceH,
172 uint8_t **oplanes, int *outstrides)
174 return core_yuv420_rgb (c, in, instrides, srcSliceY, srcSliceH, oplanes, outstrides,
175 ff_bfin_yuv2rgb565_line, 1, 565);
178 static int bfin_yuv420_bgr565 (SwsContext *c,
179 uint8_t **in, int *instrides,
180 int srcSliceY, int srcSliceH,
181 uint8_t **oplanes, int *outstrides)
183 return core_yuv420_rgb (c, in, instrides, srcSliceY, srcSliceH, oplanes, outstrides,
184 ff_bfin_yuv2rgb565_line, 0, 565);
188 SwsFunc ff_bfin_yuv2rgb_get_func_ptr (SwsContext *c)
192 switch(c->dstFormat) {
193 case PIX_FMT_RGB555: f = bfin_yuv420_rgb555; break;
194 case PIX_FMT_BGR555: f = bfin_yuv420_bgr555; break;
195 case PIX_FMT_RGB565: f = bfin_yuv420_rgb565; break;
196 case PIX_FMT_BGR565: f = bfin_yuv420_bgr565; break;
197 case PIX_FMT_RGB24: f = bfin_yuv420_rgb24; break;
198 case PIX_FMT_BGR24: f = bfin_yuv420_bgr24; break;
203 av_log(c, AV_LOG_INFO, "BlackFin Accelerated Color Space Converter %s\n",
204 sws_format_name (c->dstFormat));