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// CMap.h
// Copyright 2001-2003 Glyph & Cog, LLC
// Modified under the Poppler project -
// All changes made under the Poppler project to this file are licensed
// under GPL version 2 or later
// Copyright (C) 2008 Koji Otani <>
// 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
#pragma interface
#include "poppler-config.h"
#include "goo/gtypes.h"
#include "CharTypes.h"
#include "goo/GooMutex.h"
class GooString;
struct CMapVectorEntry;
class CMapCache;
class CMap {
// 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);
void incRefCnt();
void decRefCnt();
// Return collection name (<registry>-<ordering>).
GooString *getCollection() { return collection; }
// 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 *<nUsed> to the number of
// bytes used by the char code.
CID getCID(char *s, int len, int *nUsed);
// Return the writing mode (0=horizontal, 1=vertical).
int getWMode() { return wMode; }
void setReverseMap(Guint *rmap, Guint rmapSize, Guint ncand);
CMap(GooString *collectionA, GooString *cMapNameA);
CMap(GooString *collectionA, GooString *cMapNameA, int wModeA);
void useCMap(CMapCache *cache, char *useName);
void copyVector(CMapVectorEntry *dest, CMapVectorEntry *src);
void addCodeSpace(CMapVectorEntry *vec, Guint start, Guint end,
Guint nBytes);
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;
int wMode; // writing mode (0=horizontal, 1=vertical)
CMapVectorEntry *vector; // vector for first byte (NULL for
// identity CMap)
int refCnt;
GooMutex mutex;
#define cMapCacheSize 4
class 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. Returns NULL
// on failure.
CMap *getCMap(GooString *collection, GooString *cMapName);
CMap *cache[cMapCacheSize];