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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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This is required for XPS, as otherwise images can be completely
omitted.
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The TIFF specification seems to only allow for 4-bit and 8-bit
colormaps. However at least Microsoft's XPS viewer also accepts 1-bit
colormaps and our current code handles this case already anyway.
See https://code.google.com/p/sumatrapdf/issues/detail?id=2562 for a
sample document.
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Patch from Thomas Fach-Pedersen. Many Thanks.
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TIFF images containing JPEG data only require color transformation for
CYMK data streams. For RGB streams, this could lead to unexpected
results.
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This is required e.g. for 2314 - jpeg tables in tiff.xps.
This folds fz_open_resized_dct back into fz_open_dct instead of adding
further variations for calls with and without the jpegtables argument.
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This fixes at least 2347 - old-style tiff jpeg compression.xps.
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