1 /************************************************************** 2 * 3 * Licensed to the Apache Software Foundation (ASF) under one 4 * or more contributor license agreements. See the NOTICE file 5 * distributed with this work for additional information 6 * regarding copyright ownership. The ASF licenses this file 7 * to you under the Apache License, Version 2.0 (the 8 * "License"); you may not use this file except in compliance 9 * with the License. You may obtain a copy of the License at 10 * 11 * http://www.apache.org/licenses/LICENSE-2.0 12 * 13 * Unless required by applicable law or agreed to in writing, 14 * software distributed under the License is distributed on an 15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 16 * KIND, either express or implied. See the License for the 17 * specific language governing permissions and limitations 18 * under the License. 19 * 20 *************************************************************/ 21 22 23 #ifndef _DEFLATER_HXX_ 24 #define _DEFLATER_HXX_ 25 26 #include <com/sun/star/uno/Sequence.hxx> 27 28 extern "C" 29 { 30 typedef struct z_stream_s z_stream; 31 } 32 33 class Deflater 34 { 35 protected: 36 com::sun::star::uno::Sequence< sal_Int8 > sInBuffer; 37 sal_Bool bFinish; 38 sal_Bool bFinished; 39 sal_Bool bSetParams; 40 sal_Int32 nLevel, nStrategy; 41 sal_Int32 nOffset, nLength; 42 z_stream* pStream; 43 44 void init (sal_Int32 nLevel, sal_Int32 nStrategy, sal_Bool bNowrap); 45 sal_Int32 doDeflateBytes (com::sun::star::uno::Sequence < sal_Int8 > &rBuffer, sal_Int32 nNewOffset, sal_Int32 nNewLength); 46 47 public: 48 ~Deflater(); 49 Deflater(sal_Int32 nSetLevel, sal_Bool bNowrap); 50 void SAL_CALL setInputSegment( const ::com::sun::star::uno::Sequence< sal_Int8 >& rBuffer, sal_Int32 nNewOffset, sal_Int32 nNewLength ); 51 void SAL_CALL setLevel( sal_Int32 nNewLevel ); 52 sal_Bool SAL_CALL needsInput( ); 53 void SAL_CALL finish( ); 54 sal_Bool SAL_CALL finished( ); 55 sal_Int32 SAL_CALL doDeflateSegment( ::com::sun::star::uno::Sequence< sal_Int8 >& rBuffer, sal_Int32 nNewOffset, sal_Int32 nNewLength ); 56 sal_Int32 SAL_CALL getTotalIn( ); 57 sal_Int32 SAL_CALL getTotalOut( ); 58 void SAL_CALL reset( ); 59 void SAL_CALL end( ); 60 }; 61 62 #endif 63