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Diffstat (limited to 'branches/1.0/tinySIGCOMP/src/tcomp_deflatedata.zlib.c')
| -rw-r--r-- | branches/1.0/tinySIGCOMP/src/tcomp_deflatedata.zlib.c | 216 |
1 files changed, 0 insertions, 216 deletions
diff --git a/branches/1.0/tinySIGCOMP/src/tcomp_deflatedata.zlib.c b/branches/1.0/tinySIGCOMP/src/tcomp_deflatedata.zlib.c deleted file mode 100644 index 686f770..0000000 --- a/branches/1.0/tinySIGCOMP/src/tcomp_deflatedata.zlib.c +++ /dev/null @@ -1,216 +0,0 @@ -/* -* Copyright (C) 2009-2010 Mamadou Diop. -* -* Contact: Mamadou Diop <diopmamadou(at)doubango.org> -* -* This file is part of Open Source Doubango Framework. -* -* DOUBANGO 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 3 of the License, or -* (at your option) any later version. -* -* DOUBANGO 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 DOUBANGO. -* -*/ - -/**@file tcomp_compressor.h - * @brief SiComp Deflate compressor (zlib). - * - * @author Mamadou Diop <diopmamadou(at)yahoo.fr> - * - * @date Created: Sat Nov 8 16:54:58 2009 mdiop - */ -#include "tcomp_deflatedata.h" -#include "tsk_debug.h" - - -tsk_bool_t tcomp_deflateStream_end(tcomp_deflateStream_t *stream) -{ - if(!stream){ - TSK_DEBUG_ERROR("NULL defalte stream."); - return tsk_false; - } - - return deflateEnd(&(stream->zs)); -} - -tsk_bool_t tcomp_deflateStream_copy(tcomp_deflateStream_t *stream, tcomp_deflateStream_t *source) -{ - if(!stream){ - TSK_DEBUG_ERROR("NULL defalte stream."); - return tsk_false; - } - - return deflateCopy(&(stream->zs), &(source->zs)); -} - -tsk_bool_t tcomp_deflatedata_zInit(tcomp_deflatedata_t *deflatedata) -{ - if(!deflatedata){ - TSK_DEBUG_ERROR("NULL defalte data."); - return tsk_false; - } - - /* Already initialized? */ - if(deflatedata->initialized) { - return tsk_true; - } - - /* allocate deflate state */ - deflatedata->stream_1.zs.zalloc = deflatedata->stream_acked.zs.zalloc = Z_NULL; - deflatedata->stream_1.zs.zfree = deflatedata->stream_acked.zs.zfree = Z_NULL; - deflatedata->stream_1.zs.opaque = deflatedata->stream_acked.zs.opaque = Z_NULL; -#ifndef __SYMBIAN32__ - deflatedata->stream_1.zs.data_type = deflatedata->stream_acked.zs.data_type = Z_TEXT; -#endif - - //bool ret = (deflateInit(&this->zStream, this->zLevel) == Z_OK); - if( deflateInit2(&deflatedata->stream_1.zs, deflatedata->zLevel, Z_DEFLATED, -deflatedata->zWindowBits, MAX_MEM_LEVEL, Z_DEFAULT_STRATEGY) != Z_OK - || deflateInit2(&deflatedata->stream_acked.zs, deflatedata->zLevel, Z_DEFLATED, -deflatedata->zWindowBits, MAX_MEM_LEVEL, Z_DEFAULT_STRATEGY) != Z_OK ) - { - return tsk_false; - } -#if USE_DICTS_FOR_COMPRESSION - if( deflateSetDictionary(this->stream_1.zs, (const Bytef*)RFC3485_DICTIONARY_SIP_VALUE, RFC3485_DICTIONARY_SIP_VALUE_LENGTH) != Z_OK - || deflateSetDictionary(this->stream_acked.zs, (const Bytef*)RFC3485_DICTIONARY_SIP_VALUE, RFC3485_DICTIONARY_SIP_VALUE_LENGTH) != Z_OK ) - { - return false; - } -#endif - - deflatedata->stream_1.stateful = deflatedata->stream_acked.stateful = 0; - deflatedata->stream_1.dataWaitingAck = deflatedata->stream_acked.dataWaitingAck = 0; - deflatedata->initialized = 1; - - return tsk_true; -} - -tsk_bool_t tcomp_deflatedata_zUnInit(tcomp_deflatedata_t *deflatedata) -{ - if(!deflatedata){ - TSK_DEBUG_ERROR("NULL defalte data."); - return tsk_false; - } - - if(deflatedata->initialized){ - deflatedata->initialized = 0; - - deflatedata->stream_1.dataWaitingAck = deflatedata->stream_acked.dataWaitingAck = 0; - deflatedata->stream_1.stateful = deflatedata->stream_acked.stateful = 0; - - return (tcomp_deflateStream_end(&deflatedata->stream_1) != Z_STREAM_ERROR) && (tcomp_deflateStream_end(&deflatedata->stream_acked) != Z_STREAM_ERROR); - } - return tsk_true; -} - -tsk_bool_t tcomp_deflatedata_zReset(tcomp_deflatedata_t *deflatedata) -{ - tsk_bool_t ret; - - if(!deflatedata){ - TSK_DEBUG_ERROR("NULL defalte data."); - return tsk_false; - } - - ret = deflatedata->initialized ? tcomp_deflatedata_zUnInit(deflatedata) : tsk_true; - ret &= tcomp_deflatedata_zInit(deflatedata); - - return ret; -} - -tsk_bool_t tcomp_deflatedata_zCompress(tcomp_deflatedata_t *deflatedata, const void* in, tsk_size_t inLen, void* out, tsk_size_t* outLen, tsk_bool_t *stateChanged) -{ - int ret = tsk_false; -/* - Two streams [1] and [2] - - * ZINIT/ZUNINIT/ZRESET - XXX([1]) - XXX([2]) - - * COMPRESSION - [1]->END() - [1]<-COPY-[2] - [1]->COMPRESS() - - * ACK - [2]->END() - [2]<-COPY-[1] - updateGhost([1]) -*/ - if(!deflatedata){ - TSK_DEBUG_ERROR("NULL defalte data."); - return tsk_false; - } - - tsk_safeobj_lock(deflatedata); - - /* Initialized? */ - if(!deflatedata->initialized){ - if(!tcomp_deflatedata_zInit(deflatedata)){ - TSK_DEBUG_ERROR("Failed to initialize zlib resources.."); - tsk_safeobj_unlock(deflatedata); - return tsk_false; - } - } - -#if USE_ONLY_ACKED_STATES - if(!deflatedata->stream_acked.dataWaitingAck){ - deflatedata->stream_acked.dataWaitingAck = 1; - *stateChanged = tsk_true; - } - else{ - *stateChanged = tsk_false; - } - - /* END() + COPY() ==> use acked state */ - tcomp_deflateStream_end(&(deflatedata->stream_1)); - tcomp_deflateStream_copy(&(deflatedata->stream_1), &(deflatedata->stream_acked)); - -#else - *stateChanged = tsk_true; -#endif - - // IN - deflatedata->stream_1.zs.next_in = (Bytef*)in; - deflatedata->stream_1.zs.avail_in = (uInt)inLen; - - // OUT - deflatedata->stream_1.zs.next_out = (Bytef*)out; - deflatedata->stream_1.zs.avail_out = (uInt)*outLen; - - ret = deflate(&(deflatedata->stream_1.zs), Z_SYNC_FLUSH); - - *outLen -= deflatedata->stream_1.zs.avail_out; - - tsk_safeobj_unlock(deflatedata); - - return (ret == Z_OK); -} - -int tcomp_deflatedata_zGetWindowBits(tcomp_deflatedata_t *deflatedata) -{ - if(!deflatedata){ - TSK_DEBUG_ERROR("NULL defalte data."); - return 0; - } - - return deflatedata->zWindowBits; -} - -void tcomp_deflatedata_zSetWindowBits(tcomp_deflatedata_t *deflatedata, int windowSize) -{ - if(!deflatedata){ - TSK_DEBUG_ERROR("NULL defalte data."); - return; - } - - deflatedata->zWindowBits = windowSize; -} |
