| File: | home/maarten/src/libreoffice/core/filter/source/graphicfilter/icgm/class1.cxx |
| Warning: | line 154, column 13 Value stored to 'nI1' is never read |
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| 1 | /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ |
| 2 | /* |
| 3 | * This file is part of the LibreOffice project. |
| 4 | * |
| 5 | * This Source Code Form is subject to the terms of the Mozilla Public |
| 6 | * License, v. 2.0. If a copy of the MPL was not distributed with this |
| 7 | * file, You can obtain one at http://mozilla.org/MPL/2.0/. |
| 8 | * |
| 9 | * This file incorporates work covered by the following license notice: |
| 10 | * |
| 11 | * Licensed to the Apache Software Foundation (ASF) under one or more |
| 12 | * contributor license agreements. See the NOTICE file distributed |
| 13 | * with this work for additional information regarding copyright |
| 14 | * ownership. The ASF licenses this file to you under the Apache |
| 15 | * License, Version 2.0 (the "License"); you may not use this file |
| 16 | * except in compliance with the License. You may obtain a copy of |
| 17 | * the License at http://www.apache.org/licenses/LICENSE-2.0 . |
| 18 | */ |
| 19 | |
| 20 | #include <sal/config.h> |
| 21 | |
| 22 | #include <o3tl/safeint.hxx> |
| 23 | |
| 24 | #include "bundles.hxx" |
| 25 | #include "cgm.hxx" |
| 26 | #include "elements.hxx" |
| 27 | |
| 28 | |
| 29 | void CGM::ImplDoClass1() |
| 30 | { |
| 31 | long nInteger, nI0, nI1; |
| 32 | sal_uInt32 nUInteger; |
| 33 | |
| 34 | switch ( mnElementID ) |
| 35 | { |
| 36 | case 0x01 : /*Metafile Version*/ |
| 37 | pElement->nMetaFileVersion = ImplGetI( pElement->nIntegerPrecision ); |
| 38 | break; |
| 39 | case 0x02 : /*Metafile Description */break; |
| 40 | case 0x03 : /*VDC Type*/ |
| 41 | { |
| 42 | nUInteger = ImplGetUI16(); |
| 43 | switch( nUInteger ) |
| 44 | { |
| 45 | case 0 : pElement->eVDCType = VDC_INTEGER; break; |
| 46 | case 1 : pElement->eVDCType = VDC_REAL; break; |
| 47 | default: mbStatus = false; break; |
| 48 | } |
| 49 | } |
| 50 | break; |
| 51 | case 0x04 : /*Integer Precision*/ |
| 52 | { |
| 53 | nInteger = ImplGetI( pElement->nIntegerPrecision ); |
| 54 | switch ( nInteger ) |
| 55 | { |
| 56 | case 32 : |
| 57 | case 24 : |
| 58 | case 16 : |
| 59 | case 8 : pElement->nIntegerPrecision = nInteger >> 3; break; |
| 60 | default : mbStatus = false; break; |
| 61 | } |
| 62 | } |
| 63 | break; |
| 64 | case 0x05 : /*Real Precision*/ |
| 65 | { |
| 66 | nUInteger = ImplGetUI16(); |
| 67 | nI0 = ImplGetI( pElement->nIntegerPrecision ); // exponent |
| 68 | nI1 = ImplGetI( pElement->nIntegerPrecision ); // mantissa |
| 69 | switch( nUInteger ) |
| 70 | { |
| 71 | case 0 : |
| 72 | pElement->eRealPrecision = RP_FLOAT; |
| 73 | switch ( nI0 ) |
| 74 | { |
| 75 | case 9 : |
| 76 | if ( nI1 != 23 ) |
| 77 | mbStatus = false; |
| 78 | pElement->nRealSize = 4; |
| 79 | break; |
| 80 | case 12 : |
| 81 | if ( nI1 != 52 ) |
| 82 | mbStatus =false; |
| 83 | pElement->nRealSize = 8; |
| 84 | break; |
| 85 | default: |
| 86 | mbStatus = false; |
| 87 | break; |
| 88 | } |
| 89 | break; |
| 90 | case 1 : |
| 91 | pElement->eRealPrecision = RP_FIXED; |
| 92 | if ( nI0 != nI1 ) |
| 93 | mbStatus = false; |
| 94 | if ( nI0 == 16 ) |
| 95 | pElement->nRealSize = 4; |
| 96 | else if ( nI0 == 32 ) |
| 97 | pElement->nRealSize = 8; |
| 98 | else |
| 99 | mbStatus = false; |
| 100 | break; |
| 101 | default : |
| 102 | mbStatus = false; break; |
| 103 | } |
| 104 | } |
| 105 | break; |
| 106 | case 0x06 : /*Index Precision*/ |
| 107 | { |
| 108 | nInteger = ImplGetI( pElement->nIntegerPrecision ); |
| 109 | switch ( nInteger ) |
| 110 | { |
| 111 | case 32 : |
| 112 | case 24 : |
| 113 | case 16 : |
| 114 | case 8 : pElement->nIndexPrecision = nInteger >> 3; break; |
| 115 | default : mbStatus = false; break; |
| 116 | } |
| 117 | } |
| 118 | break; |
| 119 | case 0x07 : /*Color Precision*/ |
| 120 | { |
| 121 | nInteger = ImplGetI( pElement->nIntegerPrecision ); |
| 122 | switch ( nInteger ) |
| 123 | { |
| 124 | case 32 : |
| 125 | case 24 : |
| 126 | case 16 : |
| 127 | case 8 : pElement->nColorPrecision = nInteger >> 3; break; |
| 128 | default : mbStatus = false; break; |
| 129 | } |
| 130 | } |
| 131 | break; |
| 132 | case 0x08 : /*Color Index Precision*/ |
| 133 | { |
| 134 | nInteger = ImplGetI( pElement->nIntegerPrecision ); |
| 135 | switch ( nInteger ) |
| 136 | { |
| 137 | case 32 : |
| 138 | case 24 : |
| 139 | case 16 : |
| 140 | case 8 : pElement->nColorIndexPrecision = nInteger >> 3; break; |
| 141 | default : mbStatus = false; break; |
| 142 | } |
| 143 | } |
| 144 | break; |
| 145 | case 0x09 : /*Maximum Colour Index*/ |
| 146 | { |
| 147 | pElement->nColorMaximumIndex = ImplGetUI( pElement->nColorIndexPrecision ); |
| 148 | if ( ( pElement->nColorMaximumIndex > 256 /*255*/ ) || ( pElement->nColorMaximumIndex == 0 ) ) |
| 149 | mbStatus = false; |
| 150 | } |
| 151 | break; |
| 152 | case 0x0a : /*Color Value Extent*/ |
| 153 | { |
| 154 | nI1 = 6; |
Value stored to 'nI1' is never read | |
| 155 | } |
| 156 | break; |
| 157 | case 0x0b : /*MetaFile Element List */break; |
| 158 | case 0x0c : /*MetaFile Default Replacement*/ |
| 159 | { |
| 160 | if ( mnElementSize > 1 ) |
| 161 | { |
| 162 | std::unique_ptr<sal_uInt8[]> pBuf(new sal_uInt8[ mnElementSize ]); |
| 163 | memcpy( pBuf.get(), mpSource, mnElementSize ); |
| 164 | maDefRepList.push_back( std::move(pBuf) ); |
| 165 | maDefRepSizeList.push_back( mnElementSize ); |
| 166 | } |
| 167 | mnParaSize = mnElementSize; |
| 168 | } |
| 169 | break; |
| 170 | case 0x0d : /*Font List*/ |
| 171 | { |
| 172 | while ( mnParaSize < mnElementSize ) |
| 173 | { |
| 174 | sal_uInt32 nSize = ImplGetUI(1); |
| 175 | |
| 176 | if (o3tl::make_unsigned(mpEndValidSource - (mpSource + mnParaSize)) < nSize) |
| 177 | throw css::uno::Exception("attempt to read past end of input", nullptr); |
| 178 | |
| 179 | pElement->aFontList.InsertName( mpSource + mnParaSize, nSize ); |
| 180 | mnParaSize += nSize; |
| 181 | } |
| 182 | } |
| 183 | break; |
| 184 | case 0x0e : /*Character Set List*/ |
| 185 | { |
| 186 | while ( mnParaSize < mnElementSize ) |
| 187 | { |
| 188 | ImplGetUI16(); // skip CharSetType |
| 189 | sal_uInt32 nSize = ImplGetUI(1); |
| 190 | |
| 191 | if (o3tl::make_unsigned(mpEndValidSource - (mpSource + mnParaSize)) < nSize) |
| 192 | throw css::uno::Exception("attempt to read past end of input", nullptr); |
| 193 | |
| 194 | pElement->aFontList.InsertCharSet( mpSource + mnParaSize, nSize ); |
| 195 | mnParaSize += nSize; |
| 196 | } |
| 197 | } |
| 198 | break; |
| 199 | case 0x0f : /*Character Coding Announcer*/ |
| 200 | pElement->eCharacterCodingA = static_cast<CharacterCodingA>(ImplGetUI16()); |
| 201 | break; |
| 202 | case 0x10 : /*Name Precision */break; // NS |
| 203 | case 0x11 : /*Maximum VDC Extent */break; // NS |
| 204 | case 0x12 : /*Segment Priority Extent */break; // NS |
| 205 | case 0x13 : /*Color Model */break; // NS |
| 206 | case 0x14 : /*Color Calibration */break; // NS |
| 207 | case 0x15 : /*Font Properties */break; // NS |
| 208 | case 0x16 : /*Glyph Mapping */break; // NS |
| 209 | case 0x17 : /*Symbol Library List */break; // NS |
| 210 | case 0xfc : /*Inquire Function Support */break; |
| 211 | case 0xfa : /*End Metafile Defaults Replacement */break; |
| 212 | case 0xf8 : /*Set Color Value Desc Extent */break; |
| 213 | default: break; |
| 214 | } |
| 215 | }; |
| 216 | |
| 217 | |
| 218 | /* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |