blob: e4749ac350271b58955595135f3335b48738e998 [file] [log] [blame] [edit]
// Copyright 2016 PDFium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
//
// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
#ifndef CORE_FXCODEC_JBIG2_JBIG2_DOCUMENTCONTEXT_H_
#define CORE_FXCODEC_JBIG2_JBIG2_DOCUMENTCONTEXT_H_
#include <list>
#include <memory>
#include <utility>
class CJBig2_SymbolDict;
// Cache is keyed by both the key of a stream and an index within the stream.
using CJBig2_CompoundKey = std::pair<uint64_t, uint32_t>;
using CJBig2_CachePair =
std::pair<CJBig2_CompoundKey, std::unique_ptr<CJBig2_SymbolDict>>;
// Holds per-document JBig2 related data.
class JBig2_DocumentContext {
public:
JBig2_DocumentContext();
~JBig2_DocumentContext();
std::list<CJBig2_CachePair>* GetSymbolDictCache() {
return &m_SymbolDictCache;
}
private:
std::list<CJBig2_CachePair> m_SymbolDictCache;
};
#endif // CORE_FXCODEC_JBIG2_JBIG2_DOCUMENTCONTEXT_H_