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Diffstat (limited to 'filter/source/graphicfilter/icgm/class1.cxx')
| -rw-r--r-- | filter/source/graphicfilter/icgm/class1.cxx | 225 |
1 files changed, 225 insertions, 0 deletions
diff --git a/filter/source/graphicfilter/icgm/class1.cxx b/filter/source/graphicfilter/icgm/class1.cxx new file mode 100644 index 000000000..07a6fe253 --- /dev/null +++ b/filter/source/graphicfilter/icgm/class1.cxx @@ -0,0 +1,225 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* + * This file is part of the LibreOffice project. + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + * + * This file incorporates work covered by the following license notice: + * + * 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 . + */ + +#include <sal/config.h> +#include <sal/log.hxx> + +#include <o3tl/safeint.hxx> + +#include "bundles.hxx" +#include "cgm.hxx" +#include "elements.hxx" + + +void CGM::ImplDoClass1() +{ + tools::Long nInteger, nI0, nI1; + sal_uInt32 nUInteger; + + switch ( mnElementID ) + { + case 0x01 : /*Metafile Version*/ + pElement->nMetaFileVersion = ImplGetI( pElement->nIntegerPrecision ); + break; + case 0x02 : /*Metafile Description */break; + case 0x03 : /*VDC Type*/ + { + nUInteger = ImplGetUI16(); + switch( nUInteger ) + { + case 0 : pElement->eVDCType = VDC_INTEGER; break; + case 1 : pElement->eVDCType = VDC_REAL; break; + default: mbStatus = false; break; + } + } + break; + case 0x04 : /*Integer Precision*/ + { + nInteger = ImplGetI( pElement->nIntegerPrecision ); + switch ( nInteger ) + { + case 32 : + case 24 : + case 16 : + case 8 : pElement->nIntegerPrecision = nInteger >> 3; break; + default : mbStatus = false; break; + } + } + break; + case 0x05 : /*Real Precision*/ + { + nUInteger = ImplGetUI16(); + nI0 = ImplGetI( pElement->nIntegerPrecision ); // exponent + nI1 = ImplGetI( pElement->nIntegerPrecision ); // mantissa + switch( nUInteger ) + { + case 0 : + pElement->eRealPrecision = RP_FLOAT; + switch ( nI0 ) + { + case 9 : + if ( nI1 != 23 ) + mbStatus = false; + pElement->nRealSize = 4; + break; + case 12 : + if ( nI1 != 52 ) + mbStatus =false; + pElement->nRealSize = 8; + break; + default: + mbStatus = false; + break; + } + break; + case 1 : + pElement->eRealPrecision = RP_FIXED; + if ( nI0 != nI1 ) + mbStatus = false; + if ( nI0 == 16 ) + pElement->nRealSize = 4; + else if ( nI0 == 32 ) + pElement->nRealSize = 8; + else + mbStatus = false; + break; + default : + mbStatus = false; break; + } + } + break; + case 0x06 : /*Index Precision*/ + { + nInteger = ImplGetI( pElement->nIntegerPrecision ); + switch ( nInteger ) + { + case 32 : + case 24 : + case 16 : + case 8 : pElement->nIndexPrecision = nInteger >> 3; break; + default : mbStatus = false; break; + } + } + break; + case 0x07 : /*Color Precision*/ + { + nInteger = ImplGetI( pElement->nIntegerPrecision ); + switch ( nInteger ) + { + case 32 : + case 24 : + case 16 : + case 8 : pElement->nColorPrecision = nInteger >> 3; break; + default : mbStatus = false; break; + } + } + break; + case 0x08 : /*Color Index Precision*/ + { + nInteger = ImplGetI( pElement->nIntegerPrecision ); + switch ( nInteger ) + { + case 32 : + case 24 : + case 16 : + case 8 : pElement->nColorIndexPrecision = nInteger >> 3; break; + default : mbStatus = false; break; + } + } + break; + case 0x09 : /*Maximum Colour Index*/ + { + pElement->nColorMaximumIndex = ImplGetUI( pElement->nColorIndexPrecision ); + if ( ( pElement->nColorMaximumIndex > 256 /*255*/ ) || ( pElement->nColorMaximumIndex == 0 ) ) + mbStatus = false; + } + break; + case 0x0a : /*Color Value Extent*/ + { + nI1 = 6; + } + break; + case 0x0b : /*MetaFile Element List */break; + case 0x0c : /*MetaFile Default Replacement*/ + { + if ( mnElementSize > 1 ) + { + std::unique_ptr<sal_uInt8[]> pBuf(new sal_uInt8[ mnElementSize ]); + memcpy( pBuf.get(), mpSource, mnElementSize ); + maDefRepList.push_back( std::move(pBuf) ); + maDefRepSizeList.push_back( mnElementSize ); + } + mnParaSize = mnElementSize; + } + break; + case 0x0d : /*Font List*/ + { + while ( mnParaSize < mnElementSize ) + { + sal_uInt32 nSize = ImplGetUI(1); + + if (o3tl::make_unsigned(mpEndValidSource - (mpSource + mnParaSize)) < nSize) + throw css::uno::Exception("attempt to read past end of input", nullptr); + + pElement->aFontList.InsertName( mpSource + mnParaSize, nSize ); + mnParaSize += nSize; + } + } + break; + case 0x0e : /*Character Set List*/ + { + while ( mnParaSize < mnElementSize ) + { + ImplGetUI16(); // skip CharSetType + sal_uInt32 nSize = ImplGetUI(1); + + if (o3tl::make_unsigned(mpEndValidSource - (mpSource + mnParaSize)) < nSize) + throw css::uno::Exception("attempt to read past end of input", nullptr); + + pElement->aFontList.InsertCharSet( mpSource + mnParaSize, nSize ); + mnParaSize += nSize; + } + } + break; + case 0x0f : /*Character Coding Announcer*/ + { + auto nCharacterCoding = ImplGetUI16(); + if (nCharacterCoding <= CCA_EXT_8) + pElement->eCharacterCodingA = static_cast<CharacterCodingA>(nCharacterCoding); + else + SAL_WARN("filter.icgm", "CharacterCoding " << nCharacterCoding << " requested, but legal max is " << CCA_EXT_8); + } + break; + case 0x10 : /*Name Precision */break; // NS + case 0x11 : /*Maximum VDC Extent */break; // NS + case 0x12 : /*Segment Priority Extent */break; // NS + case 0x13 : /*Color Model */break; // NS + case 0x14 : /*Color Calibration */break; // NS + case 0x15 : /*Font Properties */break; // NS + case 0x16 : /*Glyph Mapping */break; // NS + case 0x17 : /*Symbol Library List */break; // NS + case 0xfc : /*Inquire Function Support */break; + case 0xfa : /*End Metafile Defaults Replacement */break; + case 0xf8 : /*Set Color Value Desc Extent */break; + default: break; + } +}; + + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |