| /************************************************************** |
| * |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| * |
| *************************************************************/ |
| |
| |
| |
| #ifndef _DECODE_HXX |
| #define _DECODE_HXX |
| |
| #ifndef _BMPACC_HXX |
| #include <vcl/bmpacc.hxx> |
| #endif |
| |
| struct GIFLZWTableEntry; |
| |
| class GIFLZWDecompressor |
| { |
| GIFLZWTableEntry* pTable; |
| HPBYTE pOutBuf; |
| HPBYTE pOutBufData; |
| HPBYTE pBlockBuf; |
| sal_uLong nInputBitsBuf; |
| sal_uInt16 nTableSize; |
| sal_uInt16 nClearCode; |
| sal_uInt16 nEOICode; |
| sal_uInt16 nCodeSize; |
| sal_uInt16 nOldCode; |
| sal_uInt16 nOutBufDataLen; |
| sal_uInt16 nInputBitsBufSize; |
| sal_Bool bEOIFound; |
| sal_uInt8 nDataSize; |
| sal_uInt8 nBlockBufSize; |
| sal_uInt8 nBlockBufPos; |
| |
| void AddToTable(sal_uInt16 nPrevCode, sal_uInt16 nCodeFirstData); |
| sal_Bool ProcessOneCode(); |
| |
| |
| public: |
| |
| GIFLZWDecompressor( sal_uInt8 cDataSize ); |
| ~GIFLZWDecompressor(); |
| |
| HPBYTE DecompressBlock( HPBYTE pSrc, sal_uInt8 cBufSize, sal_uLong& rCount, sal_Bool& rEOI ); |
| }; |
| |
| #endif |
