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/drivers/media/video/pwc/pwc-dec23.h

https://bitbucket.org/ndreys/linux-sunxi
C++ Header | 67 lines | 28 code | 15 blank | 24 comment | 0 complexity | 97b139df41df620898390a03248455cb MD5 | raw file
Possible License(s): GPL-2.0, LGPL-2.0, AGPL-1.0
 1/* Linux driver for Philips webcam
 2   (C) 2004-2006 Luc Saillard (luc@saillard.org)
 3
 4   NOTE: this version of pwc is an unofficial (modified) release of pwc & pcwx
 5   driver and thus may have bugs that are not present in the original version.
 6   Please send bug reports and support requests to <luc@saillard.org>.
 7   The decompression routines have been implemented by reverse-engineering the
 8   Nemosoft binary pwcx module. Caveat emptor.
 9
10   This program is free software; you can redistribute it and/or modify
11   it under the terms of the GNU General Public License as published by
12   the Free Software Foundation; either version 2 of the License, or
13   (at your option) any later version.
14
15   This program 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
18   GNU General Public License for more details.
19
20   You should have received a copy of the GNU General Public License
21   along with this program; if not, write to the Free Software
22   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
23*/
24
25#ifndef PWC_DEC23_H
26#define PWC_DEC23_H
27
28#include "pwc.h"
29
30struct pwc_dec23_private
31{
32  unsigned int scalebits;
33  unsigned int nbitsmask, nbits; /* Number of bits of a color in the compressed stream */
34
35  unsigned int reservoir;
36  unsigned int nbits_in_reservoir;
37  const unsigned char *stream;
38  int temp_colors[16];
39
40  unsigned char table_0004_pass1[16][1024];
41  unsigned char table_0004_pass2[16][1024];
42  unsigned char table_8004_pass1[16][256];
43  unsigned char table_8004_pass2[16][256];
44  unsigned int  table_subblock[256][12];
45
46  unsigned char table_bitpowermask[8][256];
47  unsigned int  table_d800[256];
48  unsigned int  table_dc00[256];
49
50};
51
52
53int pwc_dec23_alloc(struct pwc_device *pwc);
54int pwc_dec23_init(struct pwc_device *pwc, int type, unsigned char *cmd);
55void pwc_dec23_exit(void);
56void pwc_dec23_decompress(const struct pwc_device *pwc,
57			  const void *src,
58			  void *dst,
59			  int flags);
60
61
62
63#endif
64
65
66/* vim: set cino= formatoptions=croql cindent shiftwidth=8 tabstop=8: */
67