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

   1 /* Linux driver for Philips webcam
   2    (C) 2004      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 struct pwc_dec23_private
  29 {
  30   unsigned char xx,yy,zz,zzmask;
  31
  32   unsigned char table_0004[2*0x4000];
  33   unsigned char table_8004[2*0x1000];
  34   unsigned int  table_a004[256*12];
  35
  36   unsigned char table_d004[8*256];
  37   unsigned int  table_d800[256];
  38   unsigned int  table_dc00[256];
  39 };
  40
  41
  42 void pwc_dec23_init(int type, int release, unsigned char *buffer, void *private_data);
  43 void pwc_dec23_exit(void);
  44 void pwc_dec23_decompress(const struct pwc_coord *image,
  45                             const struct pwc_coord *view,
  46                             const struct pwc_coord *offset,
  47                             const void *src,
  48                             void *dst,
  49                             int flags,
  50                             const void *data,
  51                             int bandlength);
  52
  53
  54
  55 #endif
  56
  57
  58