/*
* Load raw (compressed but decrypted) contents of a stream into buf.
*/
fz_buffer *
pdf_load_raw_stream(fz_context *ctx, pdf_document *doc, int num)
{
fz_stream *stm;
pdf_obj *dict;
int len;
fz_buffer *buf;
pdf_xref_entry *x;
if (num > 0 && num < pdf_xref_len(ctx, doc))
{
x = pdf_get_xref_entry(ctx, doc, num);
if (x->stm_buf)
return fz_keep_buffer(ctx, x->stm_buf);
}
dict = pdf_load_object(ctx, doc, num);
len = pdf_to_int(ctx, pdf_dict_get(ctx, dict, PDF_NAME_Length));
pdf_drop_obj(ctx, dict);
stm = pdf_open_raw_stream(ctx, doc, num);
buf = fz_read_all(ctx, stm, len);
fz_drop_stream(ctx, stm);
return buf;
}
/*
* Load raw (compressed but decrypted) contents of a stream into buf.
*/
fz_error
pdf_load_raw_stream(fz_buffer **bufp, pdf_xref *xref, int num, int gen)
{
fz_error error;
fz_stream *stm;
fz_obj *dict;
int len;
error = pdf_load_object(&dict, xref, num, gen);
if (error)
return fz_rethrow(error, "cannot load stream dictionary (%d %d R)", num, gen);
len = fz_to_int(fz_dict_gets(dict, "Length"));
fz_drop_obj(dict);
error = pdf_open_raw_stream(&stm, xref, num, gen);
if (error)
return fz_rethrow(error, "cannot open raw stream (%d %d R)", num, gen);
error = fz_read_all(bufp, stm, len);
if (error)
{
fz_close(stm);
return fz_rethrow(error, "cannot read raw stream (%d %d R)", num, gen);
}
fz_close(stm);
return fz_okay;
}
/*
* Load raw (compressed but decrypted) contents of a stream into buf.
*/
fz_buffer *
pdf_load_raw_stream(pdf_document *xref, int num, int gen)
{
fz_stream *stm;
pdf_obj *dict;
int len;
fz_buffer *buf;
dict = pdf_load_object(xref, num, gen);
/* RJW: "cannot load stream dictionary (%d %d R)", num, gen */
len = pdf_to_int(pdf_dict_gets(dict, "Length"));
pdf_drop_obj(dict);
stm = pdf_open_raw_stream(xref, num, gen);
/* RJW: "cannot open raw stream (%d %d R)", num, gen */
buf = fz_read_all(stm, len);
/* RJW: "cannot read raw stream (%d %d R)", num, gen */
fz_close(stm);
return buf;
}
