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"L. Spiro Engine"
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F:/My Projects/LSEngine/Modules/LSImageLib/Src/Jpeg/LSIMqc.h
00001 /* 00002 * Copyright (c) 2002-2007, Communications and Remote Sensing Laboratory, Universite catholique de Louvain (UCL), Belgium 00003 * Copyright (c) 2002-2007, Professor Benoit Macq 00004 * Copyright (c) 2001-2003, David Janssens 00005 * Copyright (c) 2002-2003, Yannick Verschueren 00006 * Copyright (c) 2003-2007, Francois-Olivier Devaux and Antonin Descampe 00007 * Copyright (c) 2005, Herve Drolon, FreeImage Team 00008 * All rights reserved. 00009 * 00010 * Redistribution and use in source and binary forms, with or without 00011 * modification, are permitted provided that the following conditions 00012 * are met: 00013 * 1. Redistributions of source code must retain the above copyright 00014 * notice, this list of conditions and the following disclaimer. 00015 * 2. Redistributions in binary form must reproduce the above copyright 00016 * notice, this list of conditions and the following disclaimer in the 00017 * documentation and/or other materials provided with the distribution. 00018 * 00019 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS' 00020 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 00021 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 00022 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 00023 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 00024 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 00025 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 00026 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 00027 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 00028 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 00029 * POSSIBILITY OF SUCH DAMAGE. 00030 */ 00031 00032 00033 #ifndef __LSI_MQC_H__ 00034 #define __LSI_MQC_H__ 00035 00036 #include "../LSIImageLib.h" 00037 #include "LSIJpegCommonStructs.h" 00038 00039 00040 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * 00041 // MACROS 00042 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * 00043 #define MQC_NUMCTXS 19 00044 #define mqc_setcurctx( _pmMqc, _i32ContextNo ) (_pmMqc)->curctx = &(_pmMqc)->ctxs[static_cast<LSINT32>(_i32ContextNo)] 00045 #define MQC_PERF_OPT 00046 00047 namespace lsi { 00048 00055 class CMqc { 00056 public : 00057 // == Types. 00061 typedef struct opj_mqc_state_t { 00063 LSUINT32 qeval; 00065 LSINT32 mps; 00067 opj_mqc_state_t * nmps; 00069 opj_mqc_state_t * nlps; 00070 } * LPopj_mqc_state_t, * const LPCopj_mqc_state_t; 00071 00075 typedef struct opj_mqc { 00076 LSUINT32 c; 00077 LSUINT32 a; 00078 LSUINT32 ct; 00079 LSUINT8 * bp; 00080 LSUINT8 * start; 00081 LSUINT8 * end; 00082 opj_mqc_state_t * ctxs[MQC_NUMCTXS]; 00083 opj_mqc_state_t ** curctx; 00084 #ifdef MQC_PERF_OPT 00085 LSUINT8 * buffer; 00086 #endif // #ifdef MQC_PERF_OPT 00087 } opj_mqc_t; 00088 00089 00090 // == Functions. 00096 static opj_mqc_t * LSE_CALL mqc_create(); 00097 00103 static LSVOID LSE_CALL mqc_destroy( opj_mqc_t * _pmMqc ); 00104 00111 static LSINT32 LSE_CALL mqc_numbytes( opj_mqc_t * _pmMqc ); 00112 00119 static LSVOID LSE_CALL mqc_resetstates( opj_mqc_t * _pmMqc ); 00120 00129 static LSVOID LSE_CALL mqc_setstate( opj_mqc_t * _pmMqc, LSINT32 _i32ContextNo, LSINT32 _i32Msb, LSINT32 _i32Prob ); 00130 00137 static LSVOID LSE_CALL mqc_init_enc( opj_mqc_t * _pmMqc, LSUINT8 * _pui8Buffer ); 00138 00145 static LSVOID LSE_CALL mqc_encode( opj_mqc_t * _pmMqc, LSINT32 _i32D ); 00146 00152 static LSVOID LSE_CALL mqc_flush( opj_mqc_t * _pmMqc ); 00153 00161 static LSVOID LSE_CALL mqc_bypass_init_enc( opj_mqc_t * _pmMqc ); 00162 00171 static LSVOID LSE_CALL mqc_bypass_enc( opj_mqc_t * _pmMqc, LSINT32 _i32D ); 00172 00180 static LSINT32 LSE_CALL mqc_bypass_flush_enc( opj_mqc_t * _pmMqc ); 00181 00187 static LSVOID LSE_CALL mqc_reset_enc( opj_mqc_t * _pmMqc ); 00188 00195 static LSINT32 LSE_CALL mqc_restart_enc( opj_mqc_t * _pmMqc ); 00196 00202 static LSVOID LSE_CALL mqc_restart_init_enc( opj_mqc_t * _pmMqc ); 00203 00209 static LSVOID LSE_CALL mqc_erterm_enc( opj_mqc_t * _pmMqc ); 00210 00216 static LSVOID LSE_CALL mqc_segmark_enc( opj_mqc_t * _pmMqc ); 00217 00225 static LSVOID LSE_CALL mqc_init_dec( opj_mqc_t * _pmMqc, LSUINT8 * _pui8Buffer, LSINT32 _i32Len ); 00226 00233 static LSINT32 LSE_CALL mqc_decode( opj_mqc_t * const _pmMqc ); 00234 00235 00236 protected : 00237 // == Members. 00241 static opj_mqc_state_t mqc_states[47*2]; 00242 00243 00244 // == Functions. 00251 static LSVOID LSE_CALL mqc_byteout( opj_mqc_t * _pmMqc ); 00252 00258 static LSVOID LSE_CALL mqc_renorme( opj_mqc_t * _pmMqc ); 00259 00265 static LSVOID LSE_CALL mqc_codemps( opj_mqc_t * _pmMqc ); 00266 00272 static LSVOID LSE_CALL mqc_codelps( opj_mqc_t * _pmMqc ); 00273 00279 static LSVOID LSE_CALL mqc_setbits( opj_mqc_t * _pmMqc ); 00280 00287 static LSINT32 LSE_CALL mqc_mpsexchange( opj_mqc_t * const _pmMqc ); 00288 00295 static LSINT32 LSE_CALL mqc_lpsexchange( opj_mqc_t * const _pmMqc ); 00296 00302 static LSVOID LSE_CALL mqc_bytein( opj_mqc_t * const _pmMqc ); 00303 00309 static LSVOID LSE_CALL mqc_renormd( opj_mqc_t * const _pmMqc ); 00310 }; 00311 00312 } // namespace lsi 00313 00314 #endif // __LSI_MQC_H__
