2 * Copyright (c) 2011 Stefano Sabatini
3 * Copyright (c) 2009 Giliard B. de Freitas <giliarde@gmail.com>
4 * Copyright (C) 2002 Gunnar Monell <gmo@linux.nu>
6 * This file is part of FFmpeg.
8 * FFmpeg is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
11 * version 2.1 of the License, or (at your option) any later version.
13 * FFmpeg is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with FFmpeg; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
23 #include "fbdev_common.h"
24 #include "libavutil/common.h"
26 struct rgb_pixfmt_map_entry {
28 int red_offset, green_offset, blue_offset, alpha_offset;
29 enum AVPixelFormat pixfmt;
32 static const struct rgb_pixfmt_map_entry rgb_pixfmt_map[] = {
33 // bpp, red_offset, green_offset, blue_offset, alpha_offset, pixfmt
34 { 32, 0, 8, 16, 24, AV_PIX_FMT_RGBA },
35 { 32, 16, 8, 0, 24, AV_PIX_FMT_BGRA },
36 { 32, 8, 16, 24, 0, AV_PIX_FMT_ARGB },
37 { 32, 3, 2, 8, 0, AV_PIX_FMT_ABGR },
38 { 24, 0, 8, 16, 0, AV_PIX_FMT_RGB24 },
39 { 24, 16, 8, 0, 0, AV_PIX_FMT_BGR24 },
40 { 16, 11, 5, 0, 16, AV_PIX_FMT_RGB565 },
43 enum AVPixelFormat ff_get_pixfmt_from_fb_varinfo(struct fb_var_screeninfo *varinfo)
47 for (i = 0; i < FF_ARRAY_ELEMS(rgb_pixfmt_map); i++) {
48 const struct rgb_pixfmt_map_entry *entry = &rgb_pixfmt_map[i];
49 if (entry->bits_per_pixel == varinfo->bits_per_pixel &&
50 entry->red_offset == varinfo->red.offset &&
51 entry->green_offset == varinfo->green.offset &&
52 entry->blue_offset == varinfo->blue.offset)
56 return AV_PIX_FMT_NONE;