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This is intended to be a way to allow us to implement
compiletime/runtime selection of different scan converter
implementations.
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CMYK+Alpha get resolved to RGB+Alpha as part of loading.
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Passing a pdf_document to pdf_graft_object to specify the source
document is redundant, as if we need to know the document, it will
be pickled into the object we are copying.
Similarly, repeatedly having to pass the destination document
seems silly when we can just pickle it into the map too (and this
removes the possibility of people using a different destination
document part way through).
This leaves to simplifying the pdf_graft_object call, at the expense
of splitting it into 2 calls - one with a map, and one without.
Also, we can delay the creation of the mapping table until we are
first asked to copy an object that requires deep copying. This
avoids us ever having to manually pass in the source document.
This has knock-on effects in the java and javascript classes, but
with the advantage of being clearer in the end (IMHO).
Conflicts:
include/mupdf/pdf/document.h
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We have pdf_drop_document, so a pdf_keep_document seems justified
too.
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Expose pdf_new_output_processor.
Remove pdf_document argument to pdf_new_filter_processor. It is
only ever used when copying resources from the old resource
dictionary to the new one, whereupon it must agree with the bound
pdf_document in the old resource dictionary.
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This causes breakages of rendering for non-rectangular clipping
paths, as seen on page 10 of Transparency-DesignGuide.pdf in
the "Knockout group on" image, if we disable the rectangular
optimisation case in fz_draw_clip_path.
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This bug caused an indeterminism with issue726.j2k.
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PDF 1.2 and prior treats # in PDF names to be regular characters.
PDF 1.2 and later treats # as escape characters for character hex
codes. Previously illegal hex codes, e.g. #BX, were partially
parsed as escaped hex codes and the illegal remainder parsed as
regular characters. Now illegal hex codes are handled as
consisting entirely of regular characters. Note that character
code 0 is also considered to be an illegal hex code.
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Previously the parser would cut these names short
and then parse the remainder as a separate name.
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Fix for bug 697943.
Set the initial replacement font bbox to the empty rectangle for type3 fonts,
and let the type3 glyph loading initialize by taking the union of all glyph
bboxes.
Set the replacement font bbox for non-Type3 fonts to the unit rectangle.
Also remove unused flag from fz_font struct.
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Add an option to the structured text device to preserve images.
If the PDF processor does not have ops to process images, then skip
loading them in the interpreter if possible. If the device does not
have any image callbacks, then don't set the image processing ops in
the run device.
This accomplishes the same effect as the device hints were intended
to do, but without needing to expose them to the PDF interpreter
which may not even have a device since we now have multiple PDF op
processors.
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For now, treat auto in margins as zero.
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We were passing in the wrong source alpha value in one of the
plotter calls. This is not a call used in our standard builds,
hence us not having seen the problem before.
Credit to Sebastian for spotting the problem and suggesting the
fix.
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Should be 0..256 not 0..1
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We call Memento_takeRef etc throughout the code so that each block
keeps a history of the events on which it's reference count changes.
I'd missed a case - fixed here.
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key_storable objects can either be freed 'directly' by an API call
(such as fz_drop_image), or 'internally' by the store realising that
the sole thing holding onto a key_storable is a key.
The current code frees more structure in the direct call than it
does in the internal call. Clearly this is wrong and leads to
leaks.
The fix is to do ALL the freeing in the internal 'drop' function
within the key_storable.
This means we don't need (or want) either fz_drop_key_storable_key or
fz_drop_key_storable to return an int to tell us whether they were
actually dropped, so we make that change to simplify the code.
This shifts the responsibility for freeing the extra internal
structure into the innermost drop functions - fz_drop_image_imp and
fz_drop_image_gprf_imp. To avoid duplicating code, we put the
extra freeing logic into a fz_drop_image_base function.
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Previously this caused memory checker errors due to
a non-temporary pixmap being accidentally freed and
then later reused as expected.
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Define PATH_MAX in the few files that use it, should it be missing.
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A nicer fix wouldn't require this #ifdeffery everywhere. Maybe
later.
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TIFF already provides the a/b components prescaled.
Previously the colorspace color conversion process
scaled them again, causing out of range behaviour.
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Previously, if a TIFF file was encoded using CCITT
fax group 3 compression and mixing 1D and 2D codes,
the fax decoder was not instructed to parse the
1D/2D indication bit after EOL. This caused later
issues when parsing the succeeding 1D/2D code,
e.g. resulting in the decoder encountering a
negative 1D code and returning with an error.
Setting k>0 means the 1D/2D indication bit is parsed.
The CCITT fax group 3 specification recommends
setting k based on the vertical resolution. MuPDF's
fax decoder depends only on if k is <0, 0 or >0, not
its value (as recommended by the PDF specification).
Therefore it is not necessary to use the vertical
resolution to determine a particular value for k.
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Do the typecasting in the functions instead, reducing the risk
of function prototype mismatches.
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It's not used, so prone to bit rot. Better to purge it.
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