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#ifdef _MUPDF_H_
#error "mupdf.h must only be included once"
#endif
#define _MUPDF_H_
#ifndef _FITZ_H_
#error "fitz.h must be included before mupdf.h"
#endif
/*
* tokenizer and low-level object parser
*/
enum
{
PDF_TERROR, PDF_TEOF,
PDF_TOARRAY, PDF_TCARRAY,
PDF_TODICT, PDF_TCDICT,
PDF_TNAME, PDF_TINT, PDF_TREAL, PDF_TSTRING, PDF_TKEYWORD,
PDF_TR, PDF_TTRUE, PDF_TFALSE, PDF_TNULL,
PDF_TOBJ, PDF_TENDOBJ,
PDF_TSTREAM, PDF_TENDSTREAM,
PDF_TXREF, PDF_TTRAILER, PDF_TSTARTXREF,
PDF_NTOKENS
};
/* lex.c */
int pdf_lex(fz_file *f, unsigned char *buf, int n, int *len);
/* parse.c */
fz_error *pdf_parsearray(fz_obj **op, fz_file *f, unsigned char *buf, int cap);
fz_error *pdf_parsedict(fz_obj **op, fz_file *f, unsigned char *buf, int cap);
fz_error *pdf_parsestmobj(fz_obj **op, fz_file *f, unsigned char *buf, int cap);
fz_error *pdf_parseindobj(fz_obj **op, fz_file *f, unsigned char *buf, int cap, int *oid, int *gid, int *stmofsj);
/*
* xref and syntax object api
*/
typedef struct pdf_xref_s pdf_xref;
typedef struct pdf_xrefentry_s pdf_xrefentry;
typedef struct pdf_crypt_s pdf_crypt;
struct pdf_xref_s
{
float version;
pdf_crypt *crypt;
fz_file *file;
int size;
int capacity;
pdf_xrefentry *table;
fz_obj *trailer;
int startxref;
fz_hashtable *store;
};
struct pdf_xrefentry_s
{
unsigned int ofs; /* file offset / objstm object number */
unsigned short gen; /* generation / objstm index */
char type; /* 0=unset (f)ree i(n)use (o)bjstm (d)elete (a)dd */
char mark; /* for garbage collection etc */
};
struct pdf_crypt_s
{
unsigned char o[32];
unsigned char u[32];
unsigned int p;
int r;
int n;
fz_obj *encrypt;
fz_obj *id;
unsigned char key[16];
int keylen;
};
/* stream.c */
fz_error *pdf_buildfilter(fz_filter**, pdf_xref*, fz_obj *stm, int oid, int gid);
fz_error *pdf_openstream0(pdf_xref*, fz_obj *stmobj, int oid, int gid, int ofs);
fz_error *pdf_openstream(pdf_xref*, fz_obj *stmref);
void pdf_closestream(pdf_xref*);
fz_error *pdf_readstream0(fz_buffer **bufp, pdf_xref*, fz_obj *stmobj, int oid, int gid, int ofs);
fz_error *pdf_readstream(fz_buffer **bufp, pdf_xref*, fz_obj *stmref);
/* crypt.c */
fz_error *pdf_newdecrypt(pdf_crypt **cp, fz_obj *enc, fz_obj *id);
fz_error *pdf_newencrypt(pdf_crypt **cp, char *userpw, char *ownerpw, int p, int n, fz_obj *id);
fz_error *pdf_setpassword(pdf_crypt *crypt, char *pw);
fz_error *pdf_cryptstm(fz_filter **fp, pdf_crypt *crypt, int oid, int gid);
void pdf_cryptobj(pdf_crypt *crypt, fz_obj *obj, int oid, int gid);
void pdf_freecrypt(pdf_crypt *crypt);
/* repair.c */
fz_error *pdf_repairxref(pdf_xref*, char *filename);
/* open.c */
fz_error *pdf_openxref(pdf_xref*, char *filename);
fz_error *pdf_readobjstm(pdf_xref *xref, int oid, int gid, unsigned char *buf, int cap);
/* xref.c */
fz_error *pdf_newxref(pdf_xref **xrefp);
fz_error *pdf_decryptxref(pdf_xref *xref);
void pdf_closexref(pdf_xref*);
void pdf_debugxref(pdf_xref*);
fz_obj *pdf_findstoredobject(fz_hashtable *store, int oid, int gid);
fz_buffer *pdf_findstoredstream(fz_hashtable *store, int oid, int gid);
fz_error *pdf_deletestoredobject(fz_hashtable *store, int oid, int gid);
fz_error *pdf_deletestoredstream(fz_hashtable *store, int oid, int gid);
fz_error *pdf_storeobject(fz_hashtable *store, int oid, int gid, fz_obj *obj);
fz_error *pdf_storestream(fz_hashtable *store, int oid, int gid, fz_buffer *buf);
fz_error *pdf_createobject(pdf_xref *xref, int *oidp, int *gidp);
fz_error *pdf_deleteobject(pdf_xref *xref, int oid, int gid);
fz_error *pdf_saveobject(pdf_xref *xref, int oid, int gid, fz_obj *obj);
fz_error *pdf_loadobject0(fz_obj **, pdf_xref*, int oid, int gid, int *stmofs);
fz_error *pdf_loadobject(fz_obj **, pdf_xref*, fz_obj *ref, int *stmofs);
fz_error *pdf_resolve(fz_obj **, pdf_xref*);
fz_error *pdf_savestream(pdf_xref *xref, int oid, int gid, fz_buffer *buf);
fz_error *pdf_deletestream(pdf_xref *xref, int oid, int gid);
/* doctor.c */
fz_error *pdf_garbagecollect(pdf_xref *xref);
/* save.c */
fz_error *pdf_saveincrementalpdf(pdf_xref *xref, char *path);
fz_error *pdf_savepdf(pdf_xref *xref, char *path, pdf_crypt *encrypt);
/*
* high-level semantic objects for resources and pages
*/
typedef struct pdf_pagetree_s pdf_pagetree;
typedef struct pdf_font_s pdf_font;
typedef struct pdf_resources_s pdf_resources;
typedef struct pdf_gstate_s pdf_gstate;
typedef struct pdf_csi_s pdf_csi;
struct pdf_pagetree_s
{
int count;
int cursor;
fz_obj **pref;
fz_obj **pobj;
};
struct pdf_font_s
{
fz_font super;
void *ftface;
fz_cmap *encoding;
int cidtogidlen;
int *cidtogidmap;
char *filename;
char *fontdata;
int fontlen;
};
struct pdf_type3_s
{
fz_rect bbox;
fz_matrix matrix;
int widths[256];
fz_tree *charprocs[256];
int tounicode[256];
};
struct pdf_resources_s
{
fz_obj *extgstate;
fz_obj *colorspace;
fz_obj *font;
fz_obj *ximage;
fz_obj *xform;
};
struct pdf_gstate_s
{
/* path stroking */
float linewidth;
int linecap;
int linejoin;
float miterlimit;
float dashphase;
int dashlen;
float dashlist[32];
/* colors and colorspaces */
struct { float r, g, b; } stroke, fill;
/* text state */
float charspace;
float wordspace;
float scale;
float leading;
pdf_font *font;
float size;
int render;
float rise;
/* tree construction state */
fz_node *head;
};
struct pdf_csi_s
{
pdf_gstate gstate[32];
int gtop;
fz_obj *stack[32];
int top;
int xbalance;
/* path object state */
fz_pathnode *path;
fz_pathnode *clip;
/* text object state */
fz_textnode *text;
fz_matrix tlm;
fz_matrix tm;
fz_tree *tree;
};
/* pagetree.c */
fz_error *pdf_loadpagetree(pdf_pagetree **pp, pdf_xref *xref);
void pdf_debugpagetree(pdf_pagetree *pages);
void pdf_freepagetree(pdf_pagetree *pages);
/* cmap.c */
fz_error *pdf_parsecmap(fz_cmap **cmapp, fz_file *file);
fz_error *pdf_loadembeddedcmap(fz_cmap **cmapp, pdf_xref *xref, fz_obj *stmref);
fz_error *pdf_loadsystemcmap(fz_cmap **cmapp, char *name);
fz_error *pdf_makeidentitycmap(fz_cmap **cmapp, int wmode);
/* fontfile.c */
fz_error *pdf_loadbuiltinfont(void **fontp, char *pattern);
fz_error *pdf_loadsystemfont(void **fontp, char *basefont, char *collection);
fz_error *pdf_loadembeddedfont(void **fontp, pdf_xref *xref, fz_obj *stmref);
fz_error *pdf_loadfontdescriptor(void **fontp, pdf_xref *xref, fz_obj *desc, char *collection);
/* font.c */
fz_error *pdf_loadfont(pdf_font **fontp, pdf_xref *xref, fz_obj *font);
void pdf_freefont(pdf_font *font);
/* resources.c */
fz_error *pdf_loadresources(pdf_resources **rdbp, pdf_xref *xref, fz_obj *resdict);
void pdf_freeresources(pdf_resources *rdb);
/* interpret.c */
fz_error *pdf_newcsi(pdf_csi **csip);
fz_error *pdf_runcsi(pdf_csi *, pdf_resources *, fz_file *);
void pdf_freecsi(pdf_csi *csi);
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