+++ /dev/null
-/*
- * 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 License Version 2.0
- *
- * Copyright (c) 1999-2000 Image Power, Inc.
- * Copyright (c) 1999-2000 The University of British Columbia
- * Copyright (c) 2001-2003 Michael David Adams
- *
- * All rights reserved.
- *
- * Permission is hereby granted, free of charge, to any person (the
- * "User") obtaining a copy of this software and associated documentation
- * files (the "Software"), to deal in the Software without restriction,
- * including without limitation the rights to use, copy, modify, merge,
- * publish, distribute, and/or sell copies of the Software, and to permit
- * persons to whom the Software is furnished to do so, subject to the
- * following conditions:
- *
- * 1. The above copyright notices and this permission notice (which
- * includes the disclaimer below) shall be included in all copies or
- * substantial portions of the Software.
- *
- * 2. The name of a copyright holder shall not be used to endorse or
- * promote products derived from the Software without specific prior
- * written permission.
- *
- * THIS DISCLAIMER OF WARRANTY CONSTITUTES AN ESSENTIAL PART OF THIS
- * LICENSE. NO USE OF THE SOFTWARE IS AUTHORIZED HEREUNDER EXCEPT UNDER
- * THIS DISCLAIMER. THE SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS
- * "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
- * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
- * PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS. IN NO
- * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL
- * INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING
- * FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
- * NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
- * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. NO ASSURANCES ARE
- * PROVIDED BY THE COPYRIGHT HOLDERS THAT THE SOFTWARE DOES NOT INFRINGE
- * THE PATENT OR OTHER INTELLECTUAL PROPERTY RIGHTS OF ANY OTHER ENTITY.
- * EACH COPYRIGHT HOLDER DISCLAIMS ANY LIABILITY TO THE USER FOR CLAIMS
- * BROUGHT BY ANY OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL
- * PROPERTY RIGHTS OR OTHERWISE. AS A CONDITION TO EXERCISING THE RIGHTS
- * GRANTED HEREUNDER, EACH USER HEREBY ASSUMES SOLE RESPONSIBILITY TO SECURE
- * ANY OTHER INTELLECTUAL PROPERTY RIGHTS NEEDED, IF ANY. THE SOFTWARE
- * IS NOT FAULT-TOLERANT AND IS NOT INTENDED FOR USE IN MISSION-CRITICAL
- * SYSTEMS, SUCH AS THOSE USED IN THE OPERATION OF NUCLEAR FACILITIES,
- * AIRCRAFT NAVIGATION OR COMMUNICATION SYSTEMS, AIR TRAFFIC CONTROL
- * SYSTEMS, DIRECT LIFE SUPPORT MACHINES, OR WEAPONS SYSTEMS, IN WHICH
- * THE FAILURE OF THE SOFTWARE OR SYSTEM COULD LEAD DIRECTLY TO DEATH,
- * PERSONAL INJURY, OR SEVERE PHYSICAL OR ENVIRONMENTAL DAMAGE ("HIGH
- * RISK ACTIVITIES"). THE COPYRIGHT HOLDERS SPECIFICALLY DISCLAIM ANY
- * EXPRESS OR IMPLIED WARRANTY OF FITNESS FOR HIGH RISK ACTIVITIES.
- *
- * __END_OF_JASPER_LICENSE__
- */
-
-/*
- * MQ Arithmetic Encoder
- *
- * $Id: jpc_mqenc.h,v 1.2 2005/06/08 17:12:49 malaterre Exp $
- */
-
-#ifndef JPC_MQENC_H
-#define JPC_MQENC_H
-
-/******************************************************************************\
-* Includes.
-\******************************************************************************/
-
-#include "jasper/jas_types.h"
-#include "jasper/jas_stream.h"
-
-#include "jpc_mqcod.h"
-
-/******************************************************************************\
-* Constants.
-\******************************************************************************/
-
-/*
- * Termination modes.
- */
-
-#define JPC_MQENC_DEFTERM 0 /* default termination */
-#define JPC_MQENC_PTERM 1 /* predictable termination */
-
-/******************************************************************************\
-* Types.
-\******************************************************************************/
-
-/* MQ arithmetic encoder class. */
-
-typedef struct {
-
- /* The C register. */
- uint_fast32_t creg;
-
- /* The A register. */
- uint_fast32_t areg;
-
- /* The CT register. */
- uint_fast32_t ctreg;
-
- /* The maximum number of contexts. */
- int maxctxs;
-
- /* The per-context information. */
- jpc_mqstate_t **ctxs;
-
- /* The current context. */
- jpc_mqstate_t **curctx;
-
- /* The stream for encoder output. */
- jas_stream_t *out;
-
- /* The byte buffer (i.e., the B variable in the standard). */
- int_fast16_t outbuf;
-
- /* The last byte output. */
- int_fast16_t lastbyte;
-
- /* The error indicator. */
- int err;
-
-} jpc_mqenc_t;
-
-/* MQ arithmetic encoder state information. */
-
-typedef struct {
-
- /* The A register. */
- unsigned areg;
-
- /* The C register. */
- unsigned creg;
-
- /* The CT register. */
- unsigned ctreg;
-
- /* The last byte output by the encoder. */
- int lastbyte;
-
-} jpc_mqencstate_t;
-
-/******************************************************************************\
-* Functions/macros for construction and destruction.
-\******************************************************************************/
-
-/* Create a MQ encoder. */
-jpc_mqenc_t *jpc_mqenc_create(int maxctxs, jas_stream_t *out);
-
-/* Destroy a MQ encoder. */
-void jpc_mqenc_destroy(jpc_mqenc_t *enc);
-
-/******************************************************************************\
-* Functions/macros for initialization.
-\******************************************************************************/
-
-/* Initialize a MQ encoder. */
-void jpc_mqenc_init(jpc_mqenc_t *enc);
-
-/******************************************************************************\
-* Functions/macros for context manipulation.
-\******************************************************************************/
-
-/* Set the current context. */
-#define jpc_mqenc_setcurctx(enc, ctxno) \
- ((enc)->curctx = &(enc)->ctxs[ctxno]);
-
-/* Set the state information for a particular context. */
-void jpc_mqenc_setctx(jpc_mqenc_t *enc, int ctxno, jpc_mqctx_t *ctx);
-
-/* Set the state information for multiple contexts. */
-void jpc_mqenc_setctxs(jpc_mqenc_t *enc, int numctxs, jpc_mqctx_t *ctxs);
-
-/******************************************************************************\
-* Miscellaneous functions/macros.
-\******************************************************************************/
-
-/* Get the error state of a MQ encoder. */
-#define jpc_mqenc_error(enc) \
- ((enc)->err)
-
-/* Get the current encoder state. */
-void jpc_mqenc_getstate(jpc_mqenc_t *enc, jpc_mqencstate_t *state);
-
-/* Terminate the code. */
-int jpc_mqenc_flush(jpc_mqenc_t *enc, int termmode);
-
-/******************************************************************************\
-* Functions/macros for encoding bits.
-\******************************************************************************/
-
-/* Encode a bit. */
-#if !defined(DEBUG)
-#define jpc_mqenc_putbit(enc, bit) jpc_mqenc_putbit_macro(enc, bit)
-#else
-#define jpc_mqenc_putbit(enc, bit) jpc_mqenc_putbit_func(enc, bit)
-#endif
-
-/******************************************************************************\
-* Functions/macros for debugging.
-\******************************************************************************/
-
-int jpc_mqenc_dump(jpc_mqenc_t *mqenc, FILE *out);
-
-/******************************************************************************\
-* Implementation-specific details.
-\******************************************************************************/
-
-/* Note: This macro is included only to satisfy the needs of
- the mqenc_putbit macro. */
-/* The cast to 'unsigned' allow us to get rid of multiple annoying warnings
- * on gcc:
- * jpc_t1enc.c:958: warning: signed and unsigned type in conditional expression
- * I am not sure this is the best patch ever since jpc_mqenc_codemps2 is
- * only returning 0 or -1 ... */
-#define jpc_mqenc_putbit_macro(enc, bit) \
- (((*((enc)->curctx))->mps == (bit)) ? \
- (((enc)->areg -= (*(enc)->curctx)->qeval), \
- ((!((enc)->areg & 0x8000)) ? ((unsigned)jpc_mqenc_codemps2(enc)) : \
- ((enc)->creg += (*(enc)->curctx)->qeval))) : \
- (unsigned)jpc_mqenc_codelps(enc))
-
-/* Note: These function prototypes are included only to satisfy the
- needs of the mqenc_putbit_macro macro. Do not call any of these
- functions directly. */
-int jpc_mqenc_codemps2(jpc_mqenc_t *enc);
-int jpc_mqenc_codelps(jpc_mqenc_t *enc);
-
-/* Note: This function prototype is included only to satisfy the needs of
- the mqenc_putbit macro. */
-int jpc_mqenc_putbit_func(jpc_mqenc_t *enc, int bit);
-
-#endif
git://git.creatis.insa-lyon.fr / gdcm.git / blobdiff