1 // Copyright 2014 PDFium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com 6 7 #include "JBig2_SymbolDict.h" 8 CJBig2_SymbolDict::CJBig2_SymbolDict() 9 { 10 SDNUMEXSYMS = 0; 11 SDEXSYMS = NULL; 12 m_bContextRetained = FALSE; 13 m_gbContext = m_grContext = NULL; 14 } 15 16 CJBig2_SymbolDict *CJBig2_SymbolDict::DeepCopy() 17 { 18 CJBig2_SymbolDict *dst = NULL; 19 CJBig2_SymbolDict *src = this; 20 if (src->m_bContextRetained || 21 src->m_gbContext || 22 src->m_grContext) { 23 return NULL; 24 } 25 JBIG2_ALLOC(dst, CJBig2_SymbolDict()); 26 dst->SDNUMEXSYMS = src->SDNUMEXSYMS; 27 dst->SDEXSYMS = (CJBig2_Image**)m_pModule->JBig2_Malloc2( 28 sizeof(CJBig2_Image*), src->SDNUMEXSYMS); 29 for(FX_DWORD i = 0; i < src->SDNUMEXSYMS; i++) { 30 if (src->SDEXSYMS[i]) { 31 JBIG2_ALLOC(dst->SDEXSYMS[i], 32 CJBig2_Image(*(src->SDEXSYMS[i]))); 33 } else { 34 dst->SDEXSYMS[i] = NULL; 35 } 36 } 37 return dst; 38 } 39 40 CJBig2_SymbolDict::~CJBig2_SymbolDict() 41 { 42 if(SDEXSYMS) { 43 for(FX_DWORD i = 0; i < SDNUMEXSYMS; i++) { 44 if(SDEXSYMS[i]) { 45 delete SDEXSYMS[i]; 46 } 47 } 48 m_pModule->JBig2_Free(SDEXSYMS); 49 } 50 if(m_bContextRetained) { 51 if(m_gbContext) { 52 m_pModule->JBig2_Free(m_gbContext); 53 } 54 if(m_grContext) { 55 m_pModule->JBig2_Free(m_grContext); 56 } 57 } 58 } 59
