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+//========================================================================
+//
+// CMap.h
+//
+// Copyright 2001-2003 Glyph & Cog, LLC
+//
+//========================================================================
+
+//========================================================================
+//
+// Modified under the Poppler project - http://poppler.freedesktop.org
+//
+// All changes made under the Poppler project to this file are licensed
+// under GPL version 2 or later
+//
+// Copyright (C) 2008 Koji Otani <sho@bbr.jp>
+// Copyright (C) 2009 Albert Astals Cid <aacid@kde.org>
+// Copyright (C) 2012 Adrian Johnson <ajohnson@redneon.com>
+//
+// To see a description of the changes please see the Changelog file that
+// came with your tarball or type make ChangeLog if you are building from git
+//
+//========================================================================
+
+#ifndef CMAP_H
+#define CMAP_H
+
+#ifdef USE_GCC_PRAGMAS
+#pragma interface
+#endif
+
+#include "poppler-config.h"
+#include "goo/gtypes.h"
+#include "CharTypes.h"
+
+#if MULTITHREADED
+#include "goo/GooMutex.h"
+#endif
+
+class GooString;
+class Object;
+struct CMapVectorEntry;
+class CMapCache;
+class Stream;
+
+//------------------------------------------------------------------------
+
+class CMap {
+public:
+
+ // Parse a CMap from <obj>, which can be a name or a stream. Sets
+ // the initial reference count to 1. Returns NULL on failure.
+ static CMap *parse(CMapCache *cache, GooString *collectionA, Object *obj);
+
+ // Create the CMap specified by <collection> and <cMapName>. Sets
+ // the initial reference count to 1. Returns NULL on failure.
+ static CMap *parse(CMapCache *cache, GooString *collectionA,
+ GooString *cMapNameA);
+
+ // Parse a CMap from <str>. Sets the initial reference count to 1.
+ // Returns NULL on failure.
+ static CMap *parse(CMapCache *cache, GooString *collectionA, Stream *str);
+
+ // Create the CMap specified by <collection> and <cMapName>. Sets
+ // the initial reference count to 1.
+ // Stream is a stream containing the CMap, can be NULL and
+ // this means the CMap will be searched in the CMap files
+ // Returns NULL on failure.
+ static CMap *parse(CMapCache *cache, GooString *collectionA,
+ GooString *cMapNameA, Stream *stream);
+
+ ~CMap();
+
+ void incRefCnt();
+ void decRefCnt();
+
+ // Return collection name (<registry>-<ordering>).
+ GooString *getCollection() { return collection; }
+
+ GooString *getCMapName() { return cMapName; }
+
+ // Return true if this CMap matches the specified <collectionA>, and
+ // <cMapNameA>.
+ GBool match(GooString *collectionA, GooString *cMapNameA);
+
+ // Return the CID corresponding to the character code starting at
+ // <s>, which contains <len> bytes. Sets *<c> to the char code, and
+ // *<nUsed> to the number of bytes used by the char code.
+ CID getCID(char *s, int len, CharCode *c, int *nUsed);
+
+ // Return the writing mode (0=horizontal, 1=vertical).
+ int getWMode() { return wMode; }
+
+ void setReverseMap(Guint *rmap, Guint rmapSize, Guint ncand);
+
+private:
+
+ void parse2(CMapCache *cache, int (*getCharFunc)(void *), void *data);
+ CMap(GooString *collectionA, GooString *cMapNameA);
+ CMap(GooString *collectionA, GooString *cMapNameA, int wModeA);
+ void useCMap(CMapCache *cache, char *useName);
+ void useCMap(CMapCache *cache, Object *obj);
+ void copyVector(CMapVectorEntry *dest, CMapVectorEntry *src);
+ void addCIDs(Guint start, Guint end, Guint nBytes, CID firstCID);
+ void freeCMapVector(CMapVectorEntry *vec);
+ void setReverseMapVector(Guint startCode, CMapVectorEntry *vec,
+ Guint *rmap, Guint rmapSize, Guint ncand);
+
+ GooString *collection;
+ GooString *cMapName;
+ GBool isIdent; // true if this CMap is an identity mapping,
+ // or is based on one (via usecmap)
+ int wMode; // writing mode (0=horizontal, 1=vertical)
+ CMapVectorEntry *vector; // vector for first byte (NULL for
+ // identity CMap)
+ int refCnt;
+#if MULTITHREADED
+ GooMutex mutex;
+#endif
+};
+
+//------------------------------------------------------------------------
+
+#define cMapCacheSize 4
+
+class CMapCache {
+public:
+
+ CMapCache();
+ ~CMapCache();
+
+ // Get the <cMapName> CMap for the specified character collection.
+ // Increments its reference count; there will be one reference for
+ // the cache plus one for the caller of this function.
+ // Stream is a stream containing the CMap, can be NULL and
+ // this means the CMap will be searched in the CMap files
+ // Returns NULL on failure.
+ CMap *getCMap(GooString *collection, GooString *cMapName, Stream *stream);
+
+private:
+
+ CMap *cache[cMapCacheSize];
+};
+
+#endif