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There are a number of functions in fx_gix.h/.cpp that take in a
pointer to a CGifContext as their first parameter. Moving these to be
methods in that class.
BUG=pdfium:902
Change-Id: I8c583ab9e42dda4241aa8a6f865408a94fa6d273
Reviewed-on: https://pdfium-review.googlesource.com/14670
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
Reviewed-by: Tom Sepez <tsepez@chromium.org>
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The core fix in this CL is a change to how LWZ decompression works, so
that when the min code table size and the color palette size are
different, color codes after the end of the defined color palette are
considered errors.
This CL also introduces a bunch of tweaks to the call return path,
since there were multiple locations where the GIF decode failing
status was being dropped on the floor, so the end widget would have a
bitmap with the default colour in it, instead of nothing.
BUG=chromium:616671
Change-Id: Id6f40d552dc24650c91e9903f710ff2fa63bc774
Reviewed-on: https://pdfium-review.googlesource.com/14630
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
Reviewed-by: dsinclair <dsinclair@chromium.org>
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Introduce a base CCodec_GifModule::Context class with a virtual
destructor so holders of unique_ptr's to these can delete them
without actually having any knowledge of the implementation
details of the context.
Bug: 728669
Change-Id: Ia50f94300924a1053c326984eac3b03f25f1b83c
Reviewed-on: https://pdfium-review.googlesource.com/6190
Commit-Queue: Tom Sepez <tsepez@chromium.org>
Reviewed-by: Lei Zhang <thestig@chromium.org>
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The Gif module is only using the longjmp as a way to catch errors, so this CL
makes it use GifDecodeStatus::Error instead.
Change-Id: I9c97e63ed851d2a80e38f1d2cd9e8f297d608cb2
Reviewed-on: https://pdfium-review.googlesource.com/5850
Commit-Queue: Nicolás Peña <npm@chromium.org>
Reviewed-by: Tom Sepez <tsepez@chromium.org>
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This CL fixes a leak that can be caused by a longjmp in ErrorData. The method
is renamed to express the fact that it includes such, and a followup should
remove the jmps altogether.
Bug: chromium:721488
Change-Id: Iefcc82a77a30ff77b7973b05611440a8d5bf275e
Reviewed-on: https://pdfium-review.googlesource.com/5450
Commit-Queue: Nicolás Peña <npm@chromium.org>
Reviewed-by: Tom Sepez <tsepez@chromium.org>
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Change-Id: I60c9cbd83ff9e7a30a5a570a6ad1cf8f52360c07
Reviewed-on: https://pdfium-review.googlesource.com/5410
Reviewed-by: Tom Sepez <tsepez@chromium.org>
Commit-Queue: Nicolás Peña <npm@chromium.org>
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