forked from Minki/linux
1a59d1b8e0
Based on 1 normalized pattern(s): 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 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 1334 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Richard Fontana <rfontana@redhat.com> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070033.113240726@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
50 lines
1.3 KiB
C
50 lines
1.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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/* Linux driver for Philips webcam
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(C) 2004-2006 Luc Saillard (luc@saillard.org)
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NOTE: this version of pwc is an unofficial (modified) release of pwc & pcwx
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driver and thus may have bugs that are not present in the original version.
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Please send bug reports and support requests to <luc@saillard.org>.
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The decompression routines have been implemented by reverse-engineering the
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Nemosoft binary pwcx module. Caveat emptor.
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*/
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#ifndef PWC_DEC23_H
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#define PWC_DEC23_H
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struct pwc_device;
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struct pwc_dec23_private
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{
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struct mutex lock;
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unsigned char last_cmd, last_cmd_valid;
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unsigned int scalebits;
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unsigned int nbitsmask, nbits; /* Number of bits of a color in the compressed stream */
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unsigned int reservoir;
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unsigned int nbits_in_reservoir;
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const unsigned char *stream;
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int temp_colors[16];
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unsigned char table_0004_pass1[16][1024];
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unsigned char table_0004_pass2[16][1024];
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unsigned char table_8004_pass1[16][256];
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unsigned char table_8004_pass2[16][256];
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unsigned int table_subblock[256][12];
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unsigned char table_bitpowermask[8][256];
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unsigned int table_d800[256];
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unsigned int table_dc00[256];
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};
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void pwc_dec23_init(struct pwc_device *pdev, const unsigned char *cmd);
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void pwc_dec23_decompress(struct pwc_device *pdev,
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const void *src,
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void *dst);
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#endif
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