LibreOffice Module vcl (master) 1
decode.hxx
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1/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2/*
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9 * This file incorporates work covered by the following license notice:
10 *
11 * Licensed to the Apache Software Foundation (ASF) under one or more
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18 */
19
20#ifndef INCLUDED_VCL_SOURCE_FILTER_IGIF_DECODE_HXX
21#define INCLUDED_VCL_SOURCE_FILTER_IGIF_DECODE_HXX
22
23#include <tools/solar.h>
24#include <vcl/Scanline.hxx>
25#include <array>
26#include <memory>
27
28struct GIFLZWTableEntry;
29
31{
32 std::unique_ptr<GIFLZWTableEntry[]>
34 std::array<sal_uInt8, 4096>
43 sal_uInt16 nClearCode;
44 sal_uInt16 nEOICode;
45 sal_uInt16 nTableSize;
46 sal_uInt16 nCodeSize;
47 sal_uInt16 nOldCode;
48 sal_uInt16 nOutBufDataLen;
50
51 bool AddToTable(sal_uInt16 nPrevCode, sal_uInt16 nCodeFirstData);
52 bool ProcessOneCode();
53
56public:
57
58 explicit GIFLZWDecompressor( sal_uInt8 cDataSize );
60
61 Scanline DecompressBlock( sal_uInt8* pSrc, sal_uInt8 cBufSize, sal_uLong& rCount, bool& rEOI );
62};
63
64#endif
65
66/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
sal_uInt8 * Scanline
Definition: Scanline.hxx:26
sal_uLong nInputBitsBuf
Definition: decode.hxx:38
sal_uInt16 nOutBufDataLen
Definition: decode.hxx:48
bool ProcessOneCode()
Definition: decode.cxx:130
sal_uInt16 nInputBitsBufSize
Definition: decode.hxx:49
std::unique_ptr< GIFLZWTableEntry[]> pTable
Definition: decode.hxx:33
sal_uInt8 * pOutBufData
Definition: decode.hxx:36
sal_uInt8 nBlockBufSize
Definition: decode.hxx:41
sal_uInt16 nOldCode
Definition: decode.hxx:47
sal_uInt16 nCodeSize
Definition: decode.hxx:46
GIFLZWDecompressor(const GIFLZWDecompressor &)=delete
sal_uInt8 nDataSize
Definition: decode.hxx:40
sal_uInt8 * pBlockBuf
Definition: decode.hxx:37
sal_uInt16 nEOICode
Definition: decode.hxx:44
sal_uInt8 nBlockBufPos
Definition: decode.hxx:42
sal_uInt16 nClearCode
Definition: decode.hxx:43
Scanline DecompressBlock(sal_uInt8 *pSrc, sal_uInt8 cBufSize, sal_uLong &rCount, bool &rEOI)
Definition: decode.cxx:63
GIFLZWDecompressor & operator=(const GIFLZWDecompressor &)=delete
std::array< sal_uInt8, 4096 > pOutBuf
Definition: decode.hxx:35
sal_uInt16 nTableSize
Definition: decode.hxx:45
bool AddToTable(sal_uInt16 nPrevCode, sal_uInt16 nCodeFirstData)
Definition: decode.cxx:111
sal_uIntPtr sal_uLong
unsigned char sal_uInt8