diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/mupdf.h | 304 | ||||
| -rw-r--r-- | include/mupdf/content.h | 75 | ||||
| -rw-r--r-- | include/mupdf/page.h | 49 | ||||
| -rw-r--r-- | include/mupdf/rsrc.h | 116 | ||||
| -rw-r--r-- | include/mupdf/syntax.h | 55 | ||||
| -rw-r--r-- | include/mupdf/xref.h | 73 |
6 files changed, 373 insertions, 299 deletions
diff --git a/include/mupdf.h b/include/mupdf.h index cd19e55b..a1633541 100644 --- a/include/mupdf.h +++ b/include/mupdf.h @@ -7,303 +7,9 @@ #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 *stmofs); - -/* - * 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 -{ - fz_file *file; - fz_file *stream; - float version; - int startxref; - fz_obj *trailer; /* TODO split this into root/info/encrypt/id */ - pdf_crypt *crypt; - - int len; - int cap; - pdf_xrefentry *table; -}; - -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 */ - fz_buffer *stmbuf; /* in-memory stream */ - unsigned int stmofs; /* on-disk stream */ - fz_obj *obj; /* stored/cached object */ -}; - -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; -}; - -/* 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); - -/* --- */ - -fz_error *pdf_repairpdf(pdf_xref **, char *filename); -fz_error *pdf_openpdf(pdf_xref **, char *filename); -fz_error *pdf_newpdf(pdf_xref **); - -fz_error *pdf_updatepdf(pdf_xref *, char *filename); -fz_error *pdf_savepdf(pdf_xref *, char *filename, pdf_crypt *encrypt); - -void pdf_debugpdf(pdf_xref *); -void pdf_closepdf(pdf_xref *); - -fz_error *pdf_allocobject(pdf_xref *, int *oidp, int *genp); -fz_error *pdf_deleteobject(pdf_xref *, int oid, int gen); -fz_error *pdf_updateobject(pdf_xref *, int oid, int gen, fz_obj *obj); -fz_error *pdf_updatestream(pdf_xref *, int oid, int gen, fz_buffer *stm); - -fz_error *pdf_cacheobject(pdf_xref *, int oid, int gen); -fz_error *pdf_loadobject(fz_obj **objp, pdf_xref *, int oid, int gen); -fz_error *pdf_loadindirect(fz_obj **objp, pdf_xref *, fz_obj *ref); -fz_error *pdf_resolve(fz_obj **reforobj, pdf_xref *); - -int pdf_isstream(pdf_xref *xref, int oid, int gen); -fz_error *pdf_loadrawstream(fz_buffer **bufp, pdf_xref *xref, int oid, int gen); -fz_error *pdf_loadstream(fz_buffer **bufp, pdf_xref *xref, int oid, int gen); -fz_error *pdf_openrawstream(pdf_xref *, int oid, int gen); -fz_error *pdf_openstream(pdf_xref *, int oid, int gen); -void pdf_closestream(pdf_xref *); - -fz_error *pdf_garbagecollect(pdf_xref *xref); -fz_error *pdf_transplant(pdf_xref *dst, pdf_xref *src, fz_obj **newp, fz_obj *old); - -/* private */ -fz_error *pdf_loadobjstm(pdf_xref *xref, int oid, int gen, unsigned char *buf, int cap); -fz_error *pdf_decryptpdf(pdf_xref *xref); - -/* --- */ - -/* - * high-level semantic objects for resources and pages - */ - -extern fz_colorspace *pdf_devicegray; -extern fz_colorspace *pdf_devicergb; -extern fz_colorspace *pdf_devicecmyk; - -typedef struct pdf_nametree_s pdf_nametree; -typedef struct pdf_pagetree_s pdf_pagetree; -typedef struct pdf_font_s pdf_font; -typedef struct pdf_resources_s pdf_resources; -typedef struct pdf_page_s pdf_page; -typedef struct pdf_gstate_s pdf_gstate; -typedef struct pdf_csi_s pdf_csi; - -struct pdf_nametree_s -{ - int len; - int cap; - struct fz_keyval_s *items; -}; - -struct pdf_pagetree_s -{ - int count; - int cursor; - fz_obj **pref; - fz_obj **pobj; -}; - -struct pdf_font_s -{ - fz_font super; - - void *ftface; - int substitute; - - /* FontDescriptor */ - int flags; - float italicangle; - float ascent; - float descent; - float capheight; - float xheight; - float missingwidth; - - /* Encoding (CMap) */ - fz_cmap *encoding; - int ncidtogid; - unsigned short *cidtogid; - - /* Raw data for freetype */ - char *filename; - fz_buffer *fontdata; -}; - -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_page_s -{ - fz_rect mediabox; - int rotate; - pdf_resources *rdb; - fz_tree *tree; -}; - -struct pdf_gstate_s -{ - /* path stroking */ - float linewidth; - int linecap; - int linejoin; - float miterlimit; - float dashphase; - int dashlen; - float dashlist[32]; - - /* materials */ - fz_colorspace *strokecs; - float stroke[32]; - fz_colorspace *fillcs; - float fill[32]; - - /* 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; -}; - -/* nametree.c */ -fz_error *pdf_loadnametree(pdf_nametree **ntp, pdf_xref *xref, char *key); -void pdf_freenametree(pdf_nametree *nt); -void pdf_debugnametree(pdf_nametree *nt); -fz_obj *pdf_lookupname(pdf_nametree *nt, fz_obj *name); -fz_obj *pdf_lookupnames(pdf_nametree *nt, char *name); - -/* pagetree.c */ -fz_error *pdf_loadpagetree(pdf_pagetree **pp, pdf_xref *xref); -int pdf_getpagecount(pdf_pagetree *pages); -fz_obj *pdf_getpageobject(pdf_pagetree *pages, int p); -void pdf_debugpagetree(pdf_pagetree *pages); -void pdf_freepagetree(pdf_pagetree *pages); - -/* page.c */ -fz_error *pdf_loadpage(pdf_page **pagep, pdf_xref *xref, fz_obj *ref); -void pdf_freepage(pdf_page *page); - -/* 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, int bytes); - -/* fontfile.c */ -fz_error *pdf_loadbuiltinfont(pdf_font *font, char *basefont); -fz_error *pdf_loadsystemfont(pdf_font *font, char *basefont, char *collection); -fz_error *pdf_loadsubstitutefont(pdf_font *font, int fdflags, char *collection); -fz_error *pdf_loadfontdescriptor(pdf_font *font, 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); - -/* colorspace.c */ -fz_error *pdf_loadcolorspace(fz_colorspace **csp, pdf_xref *xref, fz_obj *obj); - -/* 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); +#include "mupdf/syntax.h" +#include "mupdf/xref.h" +#include "mupdf/rsrc.h" +#include "mupdf/content.h" +#include "mupdf/page.h" diff --git a/include/mupdf/content.h b/include/mupdf/content.h new file mode 100644 index 00000000..9448a539 --- /dev/null +++ b/include/mupdf/content.h @@ -0,0 +1,75 @@ +/* + * content stream parsing + */ + +typedef struct pdf_gstate_s pdf_gstate; +typedef struct pdf_csi_s pdf_csi; + +struct pdf_gstate_s +{ + /* path stroking */ + float linewidth; + int linecap; + int linejoin; + float miterlimit; + float dashphase; + int dashlen; + float dashlist[32]; + + /* materials */ + fz_colorspace *strokecs; + float stroke[32]; + fz_colorspace *fillcs; + float fill[32]; + + /* 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; +}; + +/* build.c */ +void pdf_initgstate(pdf_gstate *gs); +fz_error *pdf_buildstrokepath(pdf_gstate *gs, fz_pathnode *path); +fz_error *pdf_buildfillpath(pdf_gstate *gs, fz_pathnode *path, int evenodd); +fz_error *pdf_addfillshape(pdf_gstate *gs, fz_node *shape); +fz_error *pdf_addstrokeshape(pdf_gstate *gs, fz_node *shape); +fz_error *pdf_addclipmask(pdf_gstate *gs, fz_node *shape); +fz_error *pdf_addtransform(pdf_gstate *gs, fz_node *transform); +fz_error *pdf_showpath(pdf_csi*, int close, int fill, int stroke, int evenodd); +fz_error *pdf_showtext(pdf_csi*, fz_obj *text); +fz_error *pdf_flushtext(pdf_csi*); + +/* interpret.c */ +fz_error *pdf_newcsi(pdf_csi **csip); +fz_error *pdf_runcsi(pdf_csi *, pdf_xref *xref, fz_obj *rdb, fz_file *); +void pdf_freecsi(pdf_csi *csi); + diff --git a/include/mupdf/page.h b/include/mupdf/page.h new file mode 100644 index 00000000..40d56f08 --- /dev/null +++ b/include/mupdf/page.h @@ -0,0 +1,49 @@ +/* + * Page tree, pages and related objects + */ + +typedef struct pdf_nametree_s pdf_nametree; +typedef struct pdf_pagetree_s pdf_pagetree; +typedef struct pdf_page_s pdf_page; + +struct pdf_nametree_s +{ + int len; + int cap; + struct fz_keyval_s *items; +}; + +struct pdf_pagetree_s +{ + int count; + int cursor; + fz_obj **pref; + fz_obj **pobj; +}; + +struct pdf_page_s +{ + fz_rect mediabox; + int rotate; + fz_obj *resources; + fz_tree *tree; +}; + +/* nametree.c */ +fz_error *pdf_loadnametree(pdf_nametree **ntp, pdf_xref *xref, char *key); +void pdf_freenametree(pdf_nametree *nt); +void pdf_debugnametree(pdf_nametree *nt); +fz_obj *pdf_lookupname(pdf_nametree *nt, fz_obj *name); +fz_obj *pdf_lookupnames(pdf_nametree *nt, char *name); + +/* pagetree.c */ +fz_error *pdf_loadpagetree(pdf_pagetree **pp, pdf_xref *xref); +int pdf_getpagecount(pdf_pagetree *pages); +fz_obj *pdf_getpageobject(pdf_pagetree *pages, int p); +void pdf_debugpagetree(pdf_pagetree *pages); +void pdf_freepagetree(pdf_pagetree *pages); + +/* page.c */ +fz_error *pdf_loadpage(pdf_page **pagep, pdf_xref *xref, fz_obj *ref); +void pdf_freepage(pdf_page *page); + diff --git a/include/mupdf/rsrc.h b/include/mupdf/rsrc.h new file mode 100644 index 00000000..d4accaa7 --- /dev/null +++ b/include/mupdf/rsrc.h @@ -0,0 +1,116 @@ +/* + * Resource registry and dictionaries + */ + +struct pdf_rsrc_s +{ + int oid; + int gen; + void *val; + pdf_rsrc *next; +}; + +fz_error *pdf_loadresources(fz_obj **rdb, pdf_xref *xref, fz_obj *orig); +void *pdf_findresource(pdf_rsrc *list, fz_obj *ref); + +/* + * ColorSpace + */ + +extern fz_colorspace *pdf_devicegray; +extern fz_colorspace *pdf_devicergb; +extern fz_colorspace *pdf_devicecmyk; + +fz_error *pdf_loadcolorspace(fz_colorspace **csp, pdf_xref *xref, fz_obj *obj); + +/* + * XObject + */ + +typedef struct pdf_xobject_s pdf_xobject; + +struct pdf_xobject_s +{ + fz_matrix matrix; + fz_rect bbox; + fz_obj *resources; + fz_buffer *contents; +}; + +fz_error *pdf_loadxobject(pdf_xobject **xobjp, pdf_xref *xref, fz_obj *obj); +void pdf_freexobject(pdf_xobject *xobj); + +/* + * Image + */ + +typedef struct pdf_image_s pdf_image; + +struct pdf_image_s +{ + fz_image super; + fz_image *mask; /* explicit mask with subimage */ + float decode[32]; + int bpc; + unsigned char *data; +}; + +fz_error *pdf_loadimage(pdf_image **imgp, pdf_xref *xref, fz_obj *obj); + +/* + * CMap and Font + */ + +typedef struct pdf_font_s pdf_font; + +struct pdf_font_s +{ + fz_font super; + + void *ftface; + int substitute; + + /* FontDescriptor */ + int flags; + float italicangle; + float ascent; + float descent; + float capheight; + float xheight; + float missingwidth; + + /* Encoding (CMap) */ + fz_cmap *encoding; + int ncidtogid; + unsigned short *cidtogid; + + /* Raw data for freetype */ + char *filename; + fz_buffer *fontdata; +}; + +struct pdf_type3_s +{ + fz_rect bbox; + fz_matrix matrix; + int widths[256]; + fz_tree *charprocs[256]; + int tounicode[256]; +}; + +/* 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, int bytes); + +/* fontfile.c */ +fz_error *pdf_loadbuiltinfont(pdf_font *font, char *basefont); +fz_error *pdf_loadsystemfont(pdf_font *font, char *basefont, char *collection); +fz_error *pdf_loadsubstitutefont(pdf_font *font, int fdflags, char *collection); +fz_error *pdf_loadfontdescriptor(pdf_font *font, 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); + diff --git a/include/mupdf/syntax.h b/include/mupdf/syntax.h new file mode 100644 index 00000000..4159cc54 --- /dev/null +++ b/include/mupdf/syntax.h @@ -0,0 +1,55 @@ +/* + * 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 *stmofs); + +/* + * Encryption + */ + +typedef struct pdf_crypt_s pdf_crypt; + +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; +}; + +/* 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); + diff --git a/include/mupdf/xref.h b/include/mupdf/xref.h new file mode 100644 index 00000000..d7d2e156 --- /dev/null +++ b/include/mupdf/xref.h @@ -0,0 +1,73 @@ +/* + * xref and object / stream api + */ + +typedef struct pdf_rsrc_s pdf_rsrc; /* parsed resource registry */ + +typedef struct pdf_xrefentry_s pdf_xrefentry; +typedef struct pdf_xref_s pdf_xref; + +struct pdf_xref_s +{ + fz_file *file; + fz_file *stream; + float version; + int startxref; + fz_obj *trailer; /* TODO split this into root/info/encrypt/id */ + pdf_crypt *crypt; + + int len; + int cap; + pdf_xrefentry *table; + + pdf_rsrc *rfont; + pdf_rsrc *rimage; + pdf_rsrc *rxobject; + pdf_rsrc *rcolorspace; +}; + +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 */ + fz_buffer *stmbuf; /* in-memory stream */ + unsigned int stmofs; /* on-disk stream */ + fz_obj *obj; /* stored/cached object */ +}; + +fz_error *pdf_repairpdf(pdf_xref **, char *filename); +fz_error *pdf_openpdf(pdf_xref **, char *filename); +fz_error *pdf_newpdf(pdf_xref **); + +fz_error *pdf_updatepdf(pdf_xref *, char *filename); +fz_error *pdf_savepdf(pdf_xref *, char *filename, pdf_crypt *encrypt); + +void pdf_debugpdf(pdf_xref *); +void pdf_closepdf(pdf_xref *); + +fz_error *pdf_allocobject(pdf_xref *, int *oidp, int *genp); +fz_error *pdf_deleteobject(pdf_xref *, int oid, int gen); +fz_error *pdf_updateobject(pdf_xref *, int oid, int gen, fz_obj *obj); +fz_error *pdf_updatestream(pdf_xref *, int oid, int gen, fz_buffer *stm); + +fz_error *pdf_cacheobject(pdf_xref *, int oid, int gen); +fz_error *pdf_loadobject(fz_obj **objp, pdf_xref *, int oid, int gen); +fz_error *pdf_loadindirect(fz_obj **objp, pdf_xref *, fz_obj *ref); +fz_error *pdf_resolve(fz_obj **reforobj, pdf_xref *); + +int pdf_isstream(pdf_xref *xref, int oid, int gen); +fz_error *pdf_loadrawstream(fz_buffer **bufp, pdf_xref *xref, int oid, int gen); +fz_error *pdf_loadstream(fz_buffer **bufp, pdf_xref *xref, int oid, int gen); +fz_error *pdf_openrawstream(pdf_xref *, int oid, int gen); +fz_error *pdf_openstream(pdf_xref *, int oid, int gen); +void pdf_closestream(pdf_xref *); + +fz_error *pdf_garbagecollect(pdf_xref *xref); +fz_error *pdf_transplant(pdf_xref *dst, pdf_xref *src, fz_obj **newp, fz_obj *old); + +/* private */ +fz_error *pdf_loadobjstm(pdf_xref *xref, int oid, int gen, unsigned char *buf, int cap); +fz_error *pdf_decryptpdf(pdf_xref *xref); + |