diff options
Diffstat (limited to 'src/3rdparty/jasper/src/libjasper/jpc/jpc_mqdec.h')
-rw-r--r-- | src/3rdparty/jasper/src/libjasper/jpc/jpc_mqdec.h | 271 |
1 files changed, 0 insertions, 271 deletions
diff --git a/src/3rdparty/jasper/src/libjasper/jpc/jpc_mqdec.h b/src/3rdparty/jasper/src/libjasper/jpc/jpc_mqdec.h deleted file mode 100644 index 309e500..0000000 --- a/src/3rdparty/jasper/src/libjasper/jpc/jpc_mqdec.h +++ /dev/null @@ -1,271 +0,0 @@ -/* - * Copyright (c) 1999-2000 Image Power, Inc. and the University of - * British Columbia. - * Copyright (c) 2001-2003 Michael David Adams. - * All rights reserved. - */ - -/* __START_OF_JASPER_LICENSE__ - * - * JasPer License Version 2.0 - * - * Copyright (c) 2001-2006 Michael David Adams - * Copyright (c) 1999-2000 Image Power, Inc. - * Copyright (c) 1999-2000 The University of British Columbia - * - * 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 Decoder - * - * $Id$ - */ - -#ifndef JPC_MQDEC_H -#define JPC_MQDEC_H - -/******************************************************************************\ -* Includes. -\******************************************************************************/ - -#include "jasper/jas_types.h" -#include "jasper/jas_stream.h" - -#include "jpc_mqcod.h" - -/******************************************************************************\ -* Types. -\******************************************************************************/ - -/* MQ arithmetic decoder. */ - -typedef struct { - - /* The C register. */ - uint_fast32_t creg; - - /* The A register. */ - uint_fast32_t areg; - - /* The CT register. */ - uint_fast32_t ctreg; - - /* The current context. */ - jpc_mqstate_t **curctx; - - /* The per-context information. */ - jpc_mqstate_t **ctxs; - - /* The maximum number of contexts. */ - int maxctxs; - - /* The stream from which to read data. */ - jas_stream_t *in; - - /* The last character read. */ - uchar inbuffer; - - /* The EOF indicator. */ - int eof; - -} jpc_mqdec_t; - -/******************************************************************************\ -* Functions/macros for construction and destruction. -\******************************************************************************/ - -/* Create a MQ decoder. */ -jpc_mqdec_t *jpc_mqdec_create(int maxctxs, jas_stream_t *in); - -/* Destroy a MQ decoder. */ -void jpc_mqdec_destroy(jpc_mqdec_t *dec); - -/******************************************************************************\ -* Functions/macros for initialization. -\******************************************************************************/ - -/* Set the input stream associated with a MQ decoder. */ -void jpc_mqdec_setinput(jpc_mqdec_t *dec, jas_stream_t *in); - -/* Initialize a MQ decoder. */ -void jpc_mqdec_init(jpc_mqdec_t *dec); - -/******************************************************************************\ -* Functions/macros for manipulating contexts. -\******************************************************************************/ - -/* Set the current context for a MQ decoder. */ -#define jpc_mqdec_setcurctx(dec, ctxno) \ - ((mqdec)->curctx = &(mqdec)->ctxs[ctxno]); - -/* Set the state information for a particular context of a MQ decoder. */ -void jpc_mqdec_setctx(jpc_mqdec_t *dec, int ctxno, jpc_mqctx_t *ctx); - -/* Set the state information for all contexts of a MQ decoder. */ -void jpc_mqdec_setctxs(jpc_mqdec_t *dec, int numctxs, jpc_mqctx_t *ctxs); - -/******************************************************************************\ -* Functions/macros for decoding bits. -\******************************************************************************/ - -/* Decode a symbol. */ -#if !defined(DEBUG) -#define jpc_mqdec_getbit(dec) \ - jpc_mqdec_getbit_macro(dec) -#else -#define jpc_mqdec_getbit(dec) \ - jpc_mqdec_getbit_func(dec) -#endif - -/* Decode a symbol (assuming an unskewed probability distribution). */ -#if !defined(DEBUG) -#define jpc_mqdec_getbitnoskew(dec) \ - jpc_mqdec_getbit_macro(dec) -#else -#define jpc_mqdec_getbitnoskew(dec) \ - jpc_mqdec_getbit_func(dec) -#endif - -/******************************************************************************\ -* Functions/macros for debugging. -\******************************************************************************/ - -/* Dump the MQ decoder state for debugging. */ -void jpc_mqdec_dump(jpc_mqdec_t *dec, FILE *out); - -/******************************************************************************\ -* EVERYTHING BELOW THIS POINT IS IMPLEMENTATION SPECIFIC AND NOT PART OF THE -* APPLICATION INTERFACE. DO NOT RELY ON ANY OF THE INTERNAL FUNCTIONS/MACROS -* GIVEN BELOW. -\******************************************************************************/ - -#define jpc_mqdec_getbit_macro(dec) \ - ((((dec)->areg -= (*(dec)->curctx)->qeval), \ - (dec)->creg >> 16 >= (*(dec)->curctx)->qeval) ? \ - ((((dec)->creg -= (*(dec)->curctx)->qeval << 16), \ - (dec)->areg & 0x8000) ? (*(dec)->curctx)->mps : \ - jpc_mqdec_mpsexchrenormd(dec)) : \ - jpc_mqdec_lpsexchrenormd(dec)) - -#define jpc_mqdec_mpsexchange(areg, delta, curctx, bit) \ -{ \ - if ((areg) < (delta)) { \ - register jpc_mqstate_t *state = *(curctx); \ - /* LPS decoded. */ \ - (bit) = state->mps ^ 1; \ - *(curctx) = state->nlps; \ - } else { \ - register jpc_mqstate_t *state = *(curctx); \ - /* MPS decoded. */ \ - (bit) = state->mps; \ - *(curctx) = state->nmps; \ - } \ -} - -#define jpc_mqdec_lpsexchange(areg, delta, curctx, bit) \ -{ \ - if ((areg) >= (delta)) { \ - register jpc_mqstate_t *state = *(curctx); \ - (areg) = (delta); \ - (bit) = state->mps ^ 1; \ - *(curctx) = state->nlps; \ - } else { \ - register jpc_mqstate_t *state = *(curctx); \ - (areg) = (delta); \ - (bit) = state->mps; \ - *(curctx) = state->nmps; \ - } \ -} - -#define jpc_mqdec_renormd(areg, creg, ctreg, in, eof, inbuf) \ -{ \ - do { \ - if (!(ctreg)) { \ - jpc_mqdec_bytein2(creg, ctreg, in, eof, inbuf); \ - } \ - (areg) <<= 1; \ - (creg) <<= 1; \ - --(ctreg); \ - } while (!((areg) & 0x8000)); \ -} - -#define jpc_mqdec_bytein2(creg, ctreg, in, eof, inbuf) \ -{ \ - int c; \ - unsigned char prevbuf; \ - if (!(eof)) { \ - if ((c = jas_stream_getc(in)) == EOF) { \ - (eof) = 1; \ - c = 0xff; \ - } \ - prevbuf = (inbuf); \ - (inbuf) = c; \ - if (prevbuf == 0xff) { \ - if (c > 0x8f) { \ - (creg) += 0xff00; \ - (ctreg) = 8; \ - } else { \ - (creg) += c << 9; \ - (ctreg) = 7; \ - } \ - } else { \ - (creg) += c << 8; \ - (ctreg) = 8; \ - } \ - } else { \ - (creg) += 0xff00; \ - (ctreg) = 8; \ - } \ -} - -int jpc_mqdec_getbit_func(jpc_mqdec_t *dec); -int jpc_mqdec_mpsexchrenormd(jpc_mqdec_t *dec); -int jpc_mqdec_lpsexchrenormd(jpc_mqdec_t *dec); - -#endif |