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Since the removal of the begin_page device function, structured
text extraction has been unable to correctly establish the
mediabox for extracted pages.
Update the fz_new_stext_page call to take this mediabox
information. This is an API change, but hopefully most people
are calling fz_new_stext_page_from_page or
fz_new_stext_page_from_display_list which are updated here to
cope.
Update all the apps/tools to behave properly.
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These just convert fz_outline and fz_link into plain JS arrays and
objects with no associated native userdata.
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Fix various niggles with muraster when compiled with no thread lib.
Thanks to Tamir Evan.
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Closing a device or writer may throw exceptions, but much of the
foreign language bindings (JNI and JS) depend on drop to never throw
an exception (exceptions in finalizers are bad).
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We want to turn pdf_page into a thin wrapper around a pdf_obj, so that
any updates to the underlying PDF objects will be reflected without
having to reload the pdf_page.
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The mark & sweep pass of garbage collection, and resolving indirect objects when grafting objects
was following the full chain of indirect references. In the unusual case where a numbered object
is itself only an indirect reference to another object, this intermediate numbered object would
be missed both when marking for garbage collection, and when copying objects for grafting.
Add a function to resolve only one step for these two uses.
The following is an example of a file that would break during garbage collection if we
follow full indirect reference chains:
%PDF-1.3
1 0 obj
<</Type/Catalog /Foo[2 0 R 3 0 R]>>
endobj
2 0 obj
4 0 R
endobj
3 0 obj
5 0 R
endobj
4 0 obj
<</Length 1>>
stream
A
endstream
endobj
5 0 obj
<</Length 1>>
stream
B
endstream
endobj
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The generation number is only needed for decryption, and is assumed
to be zero or irrelevant for all other uses.
Store the original object number and generation in the xref slot, so
that we can decrypt them even when the objects have been renumbered,
without needing to pass the original object number around through
the stream loading APIs.
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Affects pdfclean, pdfmerge, and pdfposter.
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We had moved the ctm into the display device, which meant it
no longer transformed the bounds given to the list device to
do scissoring. Move it back.
Same fix for muraster.
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In an earlier commit, I changed some of the band writing functions
to take the band starting offset, rather than the band number. This
was done to accomodate the idea of rendering the page in bands of
different heights.
Sadly, it seems I didn't push this all the way through, and had
different band writing functions still taking the band number.
Fix all the band writing functions to be consistent.
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Regardless of whether rendering in background thread or not the
filename and the page number should be printed.
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The argument processing was expecting an argument after I.
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A cutdown mudraw that only copes with simple raster output.
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To return the proper size from fz_bound_display_list, which has been
broken since the begin_page device call was removed.
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Allows us to remove the out parameter 'transform' from fz_begin_page.
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It was incorrectly missing the alpha in the header writing code.
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Previously the API assumed that all bands had to be the same
height. By moving the multiplication into the caller, we can
lift that assumption.
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This silences the many warnings we get when building for x64
in windows.
This does not address any of the warnings we get in thirdparty
libraries - in particular harfbuzz. These look (at a quick
glance) harmless though.
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This has knock on effects in the store.
fix
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Update the test device so it can be used 'wrapping' another
device.
In particular, it can be used to wrap the display list device
so that we can evaluate 'color or not' while building the
display list rather than having to rerun the display list
afterwards.
Also, give improved control over whether we test every pixel
of images/shadings.
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PAM output was broken in the absence of alpha. Fixed now.
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fz_pixmaps now have an explicit stride value. By default no change
from before, but code all copes with extra gaps at the end of the
line.
The alpha data in fz_pixmaps is no longer compulsory.
mudraw: use rgb not rgba (ppmraw), cmyk not cmyka (pkmraw).
Update halftone code to not expect alpha plane.
Update PNG writing to cope with alpha less input.
Also hide repeated params within the png output context.
ARM code needs updating.
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Add some paranoid checks to pdf_graft_object to prevent user
errors from crashing mupdf.
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Remove unnecessary extra indirect object; pdf_add_object returns
an indirect reference already, so we don't need to duplicate it.
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Use comma-separated list of flags and key/value pairs, for
example: "linearize,resolution=72,colorspace=gray"
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