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Diffstat (limited to 'converter/other/jpeg2000/libjasper/jpc/jpc_bs.h')
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1 files changed, 280 insertions, 0 deletions
diff --git a/converter/other/jpeg2000/libjasper/jpc/jpc_bs.h b/converter/other/jpeg2000/libjasper/jpc/jpc_bs.h new file mode 100644 index 00000000..f515972b --- /dev/null +++ b/converter/other/jpeg2000/libjasper/jpc/jpc_bs.h @@ -0,0 +1,280 @@ +/* + * Copyright (c) 1999-2000 Image Power, Inc. and the University of + * British Columbia. + * Copyright (c) 2001-2002 Michael David Adams. + * All rights reserved. + */ + +/* __START_OF_JASPER_LICENSE__ + * + * JasPer Software License + * + * IMAGE POWER JPEG-2000 PUBLIC LICENSE + * ************************************ + * + * GRANT: + * + * Permission is hereby granted, free of charge, to any person (the "User") + * obtaining a copy of this software and associated documentation, to deal + * in the JasPer Software without restriction, including without limitation + * the right to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the JasPer Software (in source and binary forms), + * and to permit persons to whom the JasPer Software is furnished to do so, + * provided further that the License Conditions below are met. + * + * License Conditions + * ****************** + * + * A. Redistributions of source code must retain the above copyright notice, + * and this list of conditions, and the following disclaimer. + * + * B. Redistributions in binary form must reproduce the above copyright + * notice, and this list of conditions, and the following disclaimer in + * the documentation and/or other materials provided with the distribution. + * + * C. Neither the name of Image Power, Inc. nor any other contributor + * (including, but not limited to, the University of British Columbia and + * Michael David Adams) may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * D. User agrees that it shall not commence any action against Image Power, + * Inc., the University of British Columbia, Michael David Adams, or any + * other contributors (collectively "Licensors") for infringement of any + * intellectual property rights ("IPR") held by the User in respect of any + * technology that User owns or has a right to license or sublicense and + * which is an element required in order to claim compliance with ISO/IEC + * 15444-1 (i.e., JPEG-2000 Part 1). "IPR" means all intellectual property + * rights worldwide arising under statutory or common law, and whether + * or not perfected, including, without limitation, all (i) patents and + * patent applications owned or licensable by User; (ii) rights associated + * with works of authorship including copyrights, copyright applications, + * copyright registrations, mask work rights, mask work applications, + * mask work registrations; (iii) rights relating to the protection of + * trade secrets and confidential information; (iv) any right analogous + * to those set forth in subsections (i), (ii), or (iii) and any other + * proprietary rights relating to intangible property (other than trademark, + * trade dress, or service mark rights); and (v) divisions, continuations, + * renewals, reissues and extensions of the foregoing (as and to the extent + * applicable) now existing, hereafter filed, issued or acquired. + * + * E. If User commences an infringement action against any Licensor(s) then + * such Licensor(s) shall have the right to terminate User's license and + * all sublicenses that have been granted hereunder by User to other parties. + * + * F. This software is for use only in hardware or software products that + * are compliant with ISO/IEC 15444-1 (i.e., JPEG-2000 Part 1). No license + * or right to this Software is granted for products that do not comply + * with ISO/IEC 15444-1. The JPEG-2000 Part 1 standard can be purchased + * from the ISO. + * + * THIS DISCLAIMER OF WARRANTY CONSTITUTES AN ESSENTIAL PART OF THIS LICENSE. + * NO USE OF THE JASPER SOFTWARE IS AUTHORIZED HEREUNDER EXCEPT UNDER + * THIS DISCLAIMER. THE JASPER SOFTWARE IS PROVIDED BY THE LICENSORS AND + * CONTRIBUTORS UNDER THIS LICENSE ON AN ``AS-IS'' BASIS, WITHOUT WARRANTY + * OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, WITHOUT LIMITATION, + * WARRANTIES THAT THE JASPER SOFTWARE IS FREE OF DEFECTS, IS MERCHANTABLE, + * IS FIT FOR A PARTICULAR PURPOSE OR IS NON-INFRINGING. THOSE INTENDING + * TO USE THE JASPER SOFTWARE OR MODIFICATIONS THEREOF FOR USE IN HARDWARE + * OR SOFTWARE PRODUCTS ARE ADVISED THAT THEIR USE MAY INFRINGE EXISTING + * PATENTS, COPYRIGHTS, TRADEMARKS, OR OTHER INTELLECTUAL PROPERTY RIGHTS. + * THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE JASPER SOFTWARE + * IS WITH THE USER. SHOULD ANY PART OF THE JASPER SOFTWARE PROVE DEFECTIVE + * IN ANY RESPECT, THE USER (AND NOT THE INITIAL DEVELOPERS, THE UNIVERSITY + * OF BRITISH COLUMBIA, IMAGE POWER, INC., MICHAEL DAVID ADAMS, OR ANY + * OTHER CONTRIBUTOR) SHALL ASSUME THE COST OF ANY NECESSARY SERVICING, + * REPAIR OR CORRECTION. UNDER NO CIRCUMSTANCES AND UNDER NO LEGAL THEORY, + * WHETHER TORT (INCLUDING NEGLIGENCE), CONTRACT, OR OTHERWISE, SHALL THE + * INITIAL DEVELOPER, THE UNIVERSITY OF BRITISH COLUMBIA, IMAGE POWER, INC., + * MICHAEL DAVID ADAMS, ANY OTHER CONTRIBUTOR, OR ANY DISTRIBUTOR OF THE + * JASPER SOFTWARE, OR ANY SUPPLIER OF ANY OF SUCH PARTIES, BE LIABLE TO + * THE USER OR ANY OTHER PERSON FOR ANY INDIRECT, SPECIAL, INCIDENTAL, OR + * CONSEQUENTIAL DAMAGES OF ANY CHARACTER INCLUDING, WITHOUT LIMITATION, + * DAMAGES FOR LOSS OF GOODWILL, WORK STOPPAGE, COMPUTER FAILURE OR + * MALFUNCTION, OR ANY AND ALL OTHER COMMERCIAL DAMAGES OR LOSSES, EVEN IF + * SUCH PARTY HAD BEEN INFORMED, OR OUGHT TO HAVE KNOWN, OF THE POSSIBILITY + * OF SUCH DAMAGES. THE JASPER SOFTWARE AND UNDERLYING TECHNOLOGY ARE NOT + * FAULT-TOLERANT AND ARE NOT DESIGNED, MANUFACTURED OR INTENDED FOR USE OR + * RESALE AS ON-LINE CONTROL EQUIPMENT IN HAZARDOUS ENVIRONMENTS REQUIRING + * FAIL-SAFE PERFORMANCE, SUCH AS IN THE OPERATION OF NUCLEAR FACILITIES, + * AIRCRAFT NAVIGATION OR COMMUNICATION SYSTEMS, AIR TRAFFIC CONTROL, DIRECT + * LIFE SUPPORT MACHINES, OR WEAPONS SYSTEMS, IN WHICH THE FAILURE OF THE + * JASPER SOFTWARE OR UNDERLYING TECHNOLOGY OR PRODUCT COULD LEAD DIRECTLY + * TO DEATH, PERSONAL INJURY, OR SEVERE PHYSICAL OR ENVIRONMENTAL DAMAGE + * ("HIGH RISK ACTIVITIES"). LICENSOR SPECIFICALLY DISCLAIMS ANY EXPRESS + * OR IMPLIED WARRANTY OF FITNESS FOR HIGH RISK ACTIVITIES. USER WILL NOT + * KNOWINGLY USE, DISTRIBUTE OR RESELL THE JASPER SOFTWARE OR UNDERLYING + * TECHNOLOGY OR PRODUCTS FOR HIGH RISK ACTIVITIES AND WILL ENSURE THAT ITS + * CUSTOMERS AND END-USERS OF ITS PRODUCTS ARE PROVIDED WITH A COPY OF THE + * NOTICE SPECIFIED IN THIS SECTION. + * + * __END_OF_JASPER_LICENSE__ + */ + +/* + * Bit Stream Class + * + * $Id$ + */ + +#ifndef JPC_BS_H +#define JPC_BS_H + +/******************************************************************************\ +* Includes. +\******************************************************************************/ + +#include <stdio.h> + +#include "jasper/jas_types.h" +#include "jasper/jas_stream.h" + +/******************************************************************************\ +* Constants. +\******************************************************************************/ + +/* + * Bit stream open mode flags. + */ + +/* Bit stream open for reading. */ +#define JPC_BITSTREAM_READ 0x01 +/* Bit stream open for writing. */ +#define JPC_BITSTREAM_WRITE 0x02 + +/* + * Bit stream flags. + */ + +/* Do not close underlying character stream. */ +#define JPC_BITSTREAM_NOCLOSE 0x01 +/* End of file has been reached while reading. */ +#define JPC_BITSTREAM_EOF 0x02 +/* An I/O error has occured. */ +#define JPC_BITSTREAM_ERR 0x04 + +/******************************************************************************\ +* Types. +\******************************************************************************/ + +/* Bit stream class. */ + +typedef struct { + + /* Some miscellaneous flags. */ + int flags_; + + /* The input/output buffer. */ + uint_fast16_t buf_; + + /* The number of bits remaining in the byte being read/written. */ + int cnt_; + + /* The underlying stream associated with this bit stream. */ + jas_stream_t *stream_; + + /* The mode in which this bit stream was opened. */ + int openmode_; + +} jpc_bitstream_t; + +/******************************************************************************\ +* Functions/macros for opening and closing bit streams.. +\******************************************************************************/ + +/* Open a stream as a bit stream. */ +jpc_bitstream_t *jpc_bitstream_sopen(jas_stream_t *stream, const char *mode); + +/* Close a bit stream. */ +int jpc_bitstream_close(jpc_bitstream_t *bitstream); + +/******************************************************************************\ +* Functions/macros for reading from and writing to bit streams.. +\******************************************************************************/ + +/* Read a bit from a bit stream. */ +#if defined(DEBUG) +#define jpc_bitstream_getbit(bitstream) \ + jpc_bitstream_getbit_func(bitstream) +#else +#define jpc_bitstream_getbit(bitstream) \ + jpc_bitstream_getbit_macro(bitstream) +#endif + +/* Write a bit to a bit stream. */ +#if defined(DEBUG) +#define jpc_bitstream_putbit(bitstream, v) \ + jpc_bitstream_putbit_func(bitstream, v) +#else +#define jpc_bitstream_putbit(bitstream, v) \ + jpc_bitstream_putbit_macro(bitstream, v) +#endif + +/* Read one or more bits from a bit stream. */ +long jpc_bitstream_getbits(jpc_bitstream_t *bitstream, int n); + +/* Write one or more bits to a bit stream. */ +int jpc_bitstream_putbits(jpc_bitstream_t *bitstream, int n, long v); + +/******************************************************************************\ +* Functions/macros for flushing and aligning bit streams. +\******************************************************************************/ + +/* Align the current position within the bit stream to the next byte + boundary. */ +int jpc_bitstream_align(jpc_bitstream_t *bitstream); + +/* Align the current position in the bit stream with the next byte boundary, + ensuring that certain bits consumed in the process match a particular + pattern. */ +int jpc_bitstream_inalign(jpc_bitstream_t *bitstream, int fillmask, + int filldata); + +/* Align the current position in the bit stream with the next byte boundary, + writing bits from the specified pattern (if necessary) in the process. */ +int jpc_bitstream_outalign(jpc_bitstream_t *bitstream, int filldata); + +/* Check if a bit stream needs alignment. */ +int jpc_bitstream_needalign(jpc_bitstream_t *bitstream); + +/* How many additional bytes would be output if the bit stream was aligned? */ +int jpc_bitstream_pending(jpc_bitstream_t *bitstream); + +/******************************************************************************\ +* Functions/macros for querying state information for bit streams. +\******************************************************************************/ + +/* Has EOF been encountered on a bit stream? */ +#define jpc_bitstream_eof(bitstream) \ + ((bitstream)->flags_ & JPC_BITSTREAM_EOF) + +/******************************************************************************\ +* Internals. +\******************************************************************************/ + +/* DO NOT DIRECTLY INVOKE ANY OF THE MACROS OR FUNCTIONS BELOW. THEY ARE + FOR INTERNAL USE ONLY. */ + +int jpc_bitstream_getbit_func(jpc_bitstream_t *bitstream); + +int jpc_bitstream_putbit_func(jpc_bitstream_t *bitstream, int v); + +int jpc_bitstream_fillbuf(jpc_bitstream_t *bitstream); + +#define jpc_bitstream_getbit_macro(bitstream) \ + (assert((bitstream)->openmode_ & JPC_BITSTREAM_READ), \ + (--(bitstream)->cnt_ >= 0) ? \ + (((bitstream)->buf_ >> (bitstream)->cnt_) & 1) : \ + jpc_bitstream_fillbuf(bitstream)) + +#define jpc_bitstream_putbit_macro(bitstream, bit) \ + (assert((bitstream)->openmode_ & JPC_BITSTREAM_WRITE), \ + (--(bitstream)->cnt_ < 0) ? \ + ((bitstream)->buf_ = ((bitstream)->buf_ << 8) & 0xffff, \ + (bitstream)->cnt_ = ((bitstream)->buf_ == 0xff00) ? 6 : 7, \ + (bitstream)->buf_ |= ((bit) & 1) << (bitstream)->cnt_, \ + (jas_stream_putc((bitstream)->stream_, (bitstream)->buf_ >> 8) == EOF) \ + ? (EOF) : ((bit) & 1)) : \ + ((bitstream)->buf_ |= ((bit) & 1) << (bitstream)->cnt_, \ + (bit) & 1)) + +#endif |