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Introduce FZ_PLOTTER defines to set which defines we required.
Add FZ_ENABLE define to set which document handlers are built
by default.
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Again, mainly so profiling works nicely.
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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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"Defined but not used" and "Set but not used" as seen with
ndk-build.
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Just for internal use, no external interface.
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This is not a complete general fix for features dropping out of
rendered line art, but merely a fix for one of the more common
cases.
When rendering rectangles (currently, specifically only those
rectangles that are actually defined as rectangles within the
path structure), if they are axis aligned, then ensure that they
always fill the subpixel line they are on.
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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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Grow the edge list using an exponential realloc pattern.
Use qsort for huge paths and only fall back to the simple
shell sort for small paths.
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The gel bbox was being stored internally as floats (despite
only holding ints). This means that as numbers get large the
bbox can become approximate, rather than exact. If the bbox
becomes smaller than it should, this causes crashes in the
scanline filling code.
This is seen with:
tests_private/fuzzing/mupdf2/17f8aee51ac776994af0b36195cdadd7_signal_sigsegv_5607be_7308_5912.pdf
The solution is simply to use ints rather than floats.
Thanks to Mateusz Jurczyk and Gynvael Coldwind of the Google Security
Team for providing the example files.
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fz_reset_gel fails to reset the length of active edges, which could
(AFAICT) lead to pointers in gel->active pointing to memory that's
been previously freed by fz_resize_array.
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The first file of this bug (hang-66.pdf) hangs while stroking a
VERY long line segment; so long that 'used' is sufficinetly large
that:
used += dash_segment_len
doesn't result in a change in the value of used. The fix is
to clip strokes to the edge of the gel's clip area, meaning
that this should never occur.
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This bug has been in here for ages, but was masked by a bug in the
gel clipping that was fixed by Tor earlier.
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The case with infinite scissor didn't work.
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