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Also change first argument from fz_context to pdf_document in each
of pdf_to_utf8, pdf_to_utf8_name, pdf_to_ucs2 and pdf_to_ucs2_name
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for(i = 0; i < pdf_array_len(x); i++)
...
results in lots of calls to pdf_array_len. This is not what we want.
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Extend mupdfclean to have a new -l file that writes the file
linearized. This should still be considered experimental
When writing a pdf file, analyse object use, flatten resource use,
reorder the objects, generate a hintstream and output with linearisaton
parameters.
This is enough for Acrobat to accept the file as being optimised
for Fast Web View. We ought to add more tables to the hintstream
in some cases, but I doubt anyone actually uses it, the spec is so
badly written. Certainly acrobat accepts the file as being optimised
for 'Fast Web View'.
Update fz_dict_put to allow for us adding a reference to the dictionary
that is the sole owner of that reference already (i.e. don't drop then
keep something that has a reference count of just 1).
Update pdf_load_image_stream to use the stm_buf from the xref if there
is one.
Update pdf_close_document to discard any stm_bufs it may be holding.
Update fz_dict_put to be pdf_dict_put - this was missed in a renaming
ages ago and has been inconsistent since.
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Attempt to separate public API from internal functions.
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Currently, we are in the slightly strange position of having
the PDF specific object types as part of fitz. Here we pull
them out into the pdf layer instead. This has been made possible
by the recent changes to make the store no longer be tied to
having fz_obj's as keys.
Most of this work is a simple huge rename; to help customers who
may have code that use such functions we have provided a sed
script to do the renaming; scripts/rename2.sed.
Various other small tweaks are required; the store used to have
some debugging code that still required knowledge of fz_obj
types - we extract that into a nicer 'type' based function
pointer. Also, the type 3 font handling used to have an fz_obj
pointer for type 3 resources, and therefore needed to know how
to free this; this has become a void * with a function to free
it.
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In various places in the code, we add markers (".seen") to
dictionaries as we traverse them to ensure that we don't
go into infinite loops.
Adding a dictionary entry is bad as it's a) an expensive
operation, b) a potentially destructive one, and c) produces another
possible point of failure (as mallocs can fail).
Instead, add a flag to each dict to allow them to be marked/unmarked
and use that instead.
Thanks to Zeniko for pointing out various places that could usefully
be protected against infinite recursion.
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Huge pervasive change to lots of files, adding a context for exception
handling and allocation.
In time we'll move more statics into there.
Also fix some for(i = 0; i < function(...); i++) calls.
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The run-together words are dead! Long live the underscores!
The postscript inspired naming convention of using all run-together
words has served us well, but it is now time for more readable code.
In this commit I have also added the sed script, rename.sed, that I used
to convert the source. Use it on your patches and application code.
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