From 57f0f512b273f60d52568b8c6b77e17f5636edc0 Mon Sep 17 00:00:00 2001 From: André Fabian Silva Delgado Date: Wed, 5 Aug 2015 17:04:01 -0300 Subject: Initial import --- drivers/media/usb/pwc/pwc-dec23.h | 61 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 61 insertions(+) create mode 100644 drivers/media/usb/pwc/pwc-dec23.h (limited to 'drivers/media/usb/pwc/pwc-dec23.h') diff --git a/drivers/media/usb/pwc/pwc-dec23.h b/drivers/media/usb/pwc/pwc-dec23.h new file mode 100644 index 000000000..c655b1c1e --- /dev/null +++ b/drivers/media/usb/pwc/pwc-dec23.h @@ -0,0 +1,61 @@ +/* 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 . + 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 + +struct pwc_device; + +struct pwc_dec23_private +{ + struct mutex lock; + + unsigned char last_cmd, last_cmd_valid; + + 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]; + +}; + +void pwc_dec23_init(struct pwc_device *pdev, const unsigned char *cmd); +void pwc_dec23_decompress(struct pwc_device *pdev, + const void *src, + void *dst); +#endif -- cgit v1.2.3-54-g00ecf