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/* Linux driver for Philips webcam

   (C) 2004-2006 Luc Saillard (luc@saillard.org)

   NOTE: this version of pwc is an unofficial (modified) release of pwc & pcwx

   driver and thus may have bugs that are not present in the original version.

   Please send bug reports and support requests to <luc@saillard.org>.

   The decompression routines have been implemented by reverse-engineering the

   Nemosoft binary pwcx module. Caveat emptor.

   This program is free software; you can redistribute it and/or modify

   it under the terms of the GNU General Public License as published by

   the Free Software Foundation; either version 2 of the License, or

   (at your option) any later version.

   This program is distributed in the hope that it will be useful,

   but WITHOUT ANY WARRANTY; without even the implied warranty of

   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License

   along with this program; if not, write to the Free Software

   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

*/

#ifndef PWC_DEC23_H

#define PWC_DEC23_H

#include "pwc.h"

struct pwc_dec23_private

{

  unsigned int scalebits;

  unsigned int nbitsmask, nbits; /* Number of bits of a color in the compressed stream */

  unsigned int reservoir;

  unsigned int nbits_in_reservoir;

  const unsigned char *stream;

  int temp_colors[16];

  unsigned char table_0004_pass1[16][1024];

  unsigned char table_0004_pass2[16][1024];

  unsigned char table_8004_pass1[16][256];

  unsigned char table_8004_pass2[16][256];

  unsigned int  table_subblock[256][12];

  unsigned char table_bitpowermask[8][256];

  unsigned int  table_d800[256];

  unsigned int  table_dc00[256];

};

int pwc_dec23_alloc(struct pwc_device *pwc);

int pwc_dec23_init(struct pwc_device *pwc, int type, unsigned char *cmd);

void pwc_dec23_exit(void);

void pwc_dec23_decompress(const struct pwc_device *pwc,

                          const void *src,

                          void *dst,

                          int flags);

#endif

/* vim: set cino= formatoptions=croql cindent shiftwidth=8 tabstop=8: */