diff options
Diffstat (limited to 'drivers/media/video/pwc/pwc-dec23.h')
| -rw-r--r-- | drivers/media/video/pwc/pwc-dec23.h | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/drivers/media/video/pwc/pwc-dec23.h b/drivers/media/video/pwc/pwc-dec23.h new file mode 100644 index 00000000000000..1c55298ad15378 --- /dev/null +++ b/drivers/media/video/pwc/pwc-dec23.h @@ -0,0 +1,67 @@ +/* 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: */ + |