103 lines
4.9 KiB
C
103 lines
4.9 KiB
C
#ifndef MUPDF_PDF_XREF_H
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#define MUPDF_PDF_XREF_H
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int pdf_create_object(fz_context *ctx, pdf_document *doc);
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void pdf_delete_object(fz_context *ctx, pdf_document *doc, int num);
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void pdf_update_object(fz_context *ctx, pdf_document *doc, int num, pdf_obj *obj);
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void pdf_update_stream(fz_context *ctx, pdf_document *doc, pdf_obj *ref, fz_buffer *buf, int compressed);
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pdf_obj *pdf_add_object(fz_context *ctx, pdf_document *doc, pdf_obj *obj);
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pdf_obj *pdf_add_object_drop(fz_context *ctx, pdf_document *doc, pdf_obj *obj);
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pdf_obj *pdf_add_stream(fz_context *ctx, pdf_document *doc, fz_buffer *buf, pdf_obj *obj, int compressed);
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pdf_obj *pdf_add_new_dict(fz_context *ctx, pdf_document *doc, int initial);
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pdf_obj *pdf_add_new_array(fz_context *ctx, pdf_document *doc, int initial);
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typedef struct pdf_xref_entry_s pdf_xref_entry;
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struct pdf_xref_entry_s
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{
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char type; /* 0=unset (f)ree i(n)use (o)bjstm */
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unsigned char marked; /* marked to keep alive with pdf_mark_xref */
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unsigned short gen; /* generation / objstm index */
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int num; /* original object number (for decryption after renumbering) */
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int64_t ofs; /* file offset / objstm object number */
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int64_t stm_ofs; /* on-disk stream */
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fz_buffer *stm_buf; /* in-memory stream (for updated objects) */
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pdf_obj *obj; /* stored/cached object */
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};
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typedef struct pdf_xref_subsec_s pdf_xref_subsec;
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struct pdf_xref_subsec_s
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{
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pdf_xref_subsec *next;
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int len;
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int start;
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pdf_xref_entry *table;
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};
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struct pdf_xref_s
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{
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int num_objects;
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pdf_xref_subsec *subsec;
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pdf_obj *trailer;
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pdf_obj *pre_repair_trailer;
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pdf_unsaved_sig *unsaved_sigs;
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pdf_unsaved_sig **unsaved_sigs_end;
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int64_t end_ofs; /* file offset to end of xref */
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};
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pdf_xref_entry *pdf_cache_object(fz_context *ctx, pdf_document *doc, int num);
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int pdf_count_objects(fz_context *ctx, pdf_document *doc);
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pdf_obj *pdf_resolve_indirect(fz_context *ctx, pdf_obj *ref);
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pdf_obj *pdf_resolve_indirect_chain(fz_context *ctx, pdf_obj *ref);
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pdf_obj *pdf_load_object(fz_context *ctx, pdf_document *doc, int num);
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pdf_obj *pdf_load_unencrypted_object(fz_context *ctx, pdf_document *doc, int num);
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fz_buffer *pdf_load_raw_stream_number(fz_context *ctx, pdf_document *doc, int num);
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fz_buffer *pdf_load_raw_stream(fz_context *ctx, pdf_obj *ref);
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fz_buffer *pdf_load_stream_number(fz_context *ctx, pdf_document *doc, int num);
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fz_buffer *pdf_load_stream(fz_context *ctx, pdf_obj *ref);
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fz_stream *pdf_open_raw_stream_number(fz_context *ctx, pdf_document *doc, int num);
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fz_stream *pdf_open_raw_stream(fz_context *ctx, pdf_obj *ref);
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fz_stream *pdf_open_stream_number(fz_context *ctx, pdf_document *doc, int num);
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fz_stream *pdf_open_stream(fz_context *ctx, pdf_obj *ref);
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fz_stream *pdf_open_inline_stream(fz_context *ctx, pdf_document *doc, pdf_obj *stmobj, int length, fz_stream *chain, fz_compression_params *params);
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fz_compressed_buffer *pdf_load_compressed_stream(fz_context *ctx, pdf_document *doc, int num);
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void pdf_load_compressed_inline_image(fz_context *ctx, pdf_document *doc, pdf_obj *dict, int length, fz_stream *cstm, int indexed, fz_compressed_image *image);
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fz_stream *pdf_open_stream_with_offset(fz_context *ctx, pdf_document *doc, int num, pdf_obj *dict, int64_t stm_ofs);
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fz_stream *pdf_open_compressed_stream(fz_context *ctx, fz_compressed_buffer *);
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fz_stream *pdf_open_contents_stream(fz_context *ctx, pdf_document *doc, pdf_obj *obj);
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int pdf_version(fz_context *ctx, pdf_document *doc);
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pdf_obj *pdf_trailer(fz_context *ctx, pdf_document *doc);
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void pdf_set_populating_xref_trailer(fz_context *ctx, pdf_document *doc, pdf_obj *trailer);
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int pdf_xref_len(fz_context *ctx, pdf_document *doc);
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pdf_xref_entry *pdf_get_populating_xref_entry(fz_context *ctx, pdf_document *doc, int i);
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pdf_xref_entry *pdf_get_xref_entry(fz_context *ctx, pdf_document *doc, int i);
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void pdf_replace_xref(fz_context *ctx, pdf_document *doc, pdf_xref_entry *entries, int n);
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void pdf_forget_xref(fz_context *ctx, pdf_document *doc);
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void pdf_xref_ensure_incremental_object(fz_context *ctx, pdf_document *doc, int num);
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int pdf_xref_is_incremental(fz_context *ctx, pdf_document *doc, int num);
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void pdf_xref_store_unsaved_signature(fz_context *ctx, pdf_document *doc, pdf_obj *field, pdf_pkcs7_signer *signer);
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int pdf_xref_obj_is_unsaved_signature(pdf_document *doc, pdf_obj *obj);
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void pdf_repair_xref(fz_context *ctx, pdf_document *doc);
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void pdf_repair_obj_stms(fz_context *ctx, pdf_document *doc);
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void pdf_ensure_solid_xref(fz_context *ctx, pdf_document *doc, int num);
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void pdf_mark_xref(fz_context *ctx, pdf_document *doc);
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void pdf_clear_xref(fz_context *ctx, pdf_document *doc);
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void pdf_clear_xref_to_mark(fz_context *ctx, pdf_document *doc);
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int pdf_repair_obj(fz_context *ctx, pdf_document *doc, pdf_lexbuf *buf, int64_t *stmofsp, int *stmlenp, pdf_obj **encrypt, pdf_obj **id, pdf_obj **page, int64_t *tmpofs, pdf_obj **root);
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pdf_obj *pdf_progressive_advance(fz_context *ctx, pdf_document *doc, int pagenum);
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#endif
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