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Diffstat (limited to 'drivers/media/usb/pwc/pwc-dec23.h')
-rw-r--r--drivers/media/usb/pwc/pwc-dec23.h61
1 files changed, 61 insertions, 0 deletions
diff --git a/drivers/media/usb/pwc/pwc-dec23.h b/drivers/media/usb/pwc/pwc-dec23.h
new file mode 100644
index 000000000000..c655b1c1e6a9
--- /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 <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
+
+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