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Add fz_has_permission function to fz_document.
Add fz_lookup_metadata function to fz_document.
Remove fz_meta function from fz_document.
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fz_open_file does not return NULL on failure -- it throws an exception!
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Purge several embedded contexts:
Remove embedded context in fz_output.
Remove embedded context in fz_stream.
Remove embedded context in fz_device.
Remove fz_rebind_stream (since it is no longer necessary).
Remove embedded context in svg_device.
Remove embedded context in XML parser.
Add ctx argument to fz_document functions.
Remove embedded context in fz_document.
Remove embedded context in pdf_document.
Remove embedded context in pdf_obj.
Make fz_page independent of fz_document in the interface.
We shouldn't need to pass the document to all functions handling a page.
If a page is tied to the source document, it's redundant; otherwise it's
just pointless.
Fix reference counting oddity in fz_new_image_from_pixmap.
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Rename fz_close to fz_drop_stream.
Rename fz_close_archive to fz_drop_archive.
Rename fz_close_output to fz_drop_output.
Rename fz_free_* to fz_drop_*.
Rename pdf_free_* to pdf_drop_*.
Rename xps_free_* to xps_drop_*.
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Starting with commit 2f4cdd4fd0580e3121773e89a7c6e7a9e1ffa54b,
xps_read_part zero-terminates the read data. It does however also count
that zero-terminator to the part's size which confuses callers handling
non-text data.
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Commit 5add23c7233c3f34fdfa6387873b1d3bdb93e1d6 and commit
2f4cdd4fd0580e3121773e89a7c6e7a9e1ffa54b introduced three memory leaks
which only appear in error cases:
* unzip.c leaks if a ZIP archive uses a compression method other than
store or Deflate
* xps-zip.c leaks if fz_open_archive_with_stream throws for broken
ZIP archives
* xps-zip.c leaks also if a piece of a split file is missing
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Per the ZIP specification, ZIP64 values are only used if the original
value was -1 (i.e. 0xFFFF for 16-bit and 0xFFFFFFFF for 32-bit values).
Microsoft's XPS viewer behaves according to specification and so
should MuXPS.
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This bug shows 2 problems with our data handling.
Firstly, if a zip file entry has less data in the stream than it
is declared to have, we would leave the end of the data uninitialised.
We now put out a warning, and blank it with zeros.
Secondly, if the PNG decompression fails to decode enough data, we
don't notice. Now we give a warning and blank the remaining pixels.
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These warnings are caused by casting function pointers to void*
instead of proper function types.
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Some warnings we'd like to enable for MuPDF and still be able to
compile it with warnings as errors using MSVC (2008 to 2013):
* C4115: 'timeval' : named type definition in parentheses
* C4204: nonstandard extension used : non-constant aggregate initializer
* C4295: 'hex' : array is too small to include a terminating null character
* C4389: '==' : signed/unsigned mismatch
* C4702: unreachable code
* C4706: assignment within conditional expression
Also, globally disable C4701 which is frequently caused by MSVC not
being able to correctly figure out fz_try/fz_catch code flow.
And don't define isnan for VS2013 and later where that's no longer needed.
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The SVG device needs rebinding as it holds a file. The PDF device needs
to rebind the underlying pdf document.
All documents need to rebind their underlying streams.
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