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path: root/core/fxcodec/codec/ccodec_gifmodule.cpp
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2018-04-27Replace void* with CFX_GifPalette* in fxcodecTom Sepez
The type is known where we need it, and we avoid some dubious casts in the process. Also avoid clumsy indexing and use the members directly in computations. Bug: pdfium:243 Change-Id: I1e061465fd0f9045cf5b82067204f26ac7df53f0 Reviewed-on: https://pdfium-review.googlesource.com/31651 Reviewed-by: Lei Zhang <thestig@chromium.org> Commit-Queue: Tom Sepez <tsepez@chromium.org>
2018-04-11Remove CFX_DIBAttribute::m_strAuthorTom Sepez
It is set in a couple of places, but the value is never used for any purpose. Change-Id: I6fc0839bc14b21ee8217fcb3eadf6c252ad67aa7 Reviewed-on: https://pdfium-review.googlesource.com/30330 Reviewed-by: Lei Zhang <thestig@chromium.org> Commit-Queue: Tom Sepez <tsepez@chromium.org>
2017-11-27Convert CFX_GifContext::GetFrameNum to size_tDan Sinclair
This CL removes the CollectionSize and updates call locations as needed. Bug: pdfium:774 Change-Id: I813c500b3a17a194407ceb1304252b9b16fe1779 Reviewed-on: https://pdfium-review.googlesource.com/19590 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: Ryan Harrison <rharrison@chromium.org>
2017-09-27Cleaning up naming of GIF files/classes/variablesRyan Harrison
Moved everything from core/fxcodec/lgif to core/fxcodec/gif Converted CGifContext -> CFX_GifContext Removed _ptr suffixes from CXF_GifContext Movef fx_gif.* -> cfx_gif.* Renamed structs in cfx_gif.h Renamed members of CFX_GifImage Renamed members of CFX_GifContext Renamed CFX_LZWDecoder -> CFX_LZWDecompressor BUG=pdfium:903 Change-Id: I537e905e935da26832e6bbdc03e0373ed5500bcb Reviewed-on: https://pdfium-review.googlesource.com/14990 Commit-Queue: Ryan Harrison <rharrison@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2017-09-22Move C-style functions into CGifContextRyan Harrison
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>
2017-09-22Fix crash when rendering invalid GIFRyan Harrison
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>
2017-09-18Convert string class namesRyan Harrison
Automated using git grep & sed. Replace StringC classes with StringView classes. Remove the CFX_ prefix and put string classes in fxcrt namespace. Change AsStringC() to AsStringView(). Rename tests from TEST(fxcrt, *String*Foo) to TEST(*String*, Foo). Couple of tests needed to have their names regularlized. BUG=pdfium:894 Change-Id: I7ca038685c8d803795f3ed02545124f7a224c83d Reviewed-on: https://pdfium-review.googlesource.com/14151 Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: Ryan Harrison <rharrison@chromium.org>
2017-06-01Move CCodec_GifModule state to CGifContextTom Sepez
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>
2017-05-23Remove longjmp from the Gif moduleNicolas Pena
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>
2017-05-12Merge FXGIF_Context and CGifDecompressor into CGifContextchromium/3098Nicolas Pena
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>
2017-05-11Do not use vector data() when it is emptyNicolas Pena
Before, all pointers were being initialized to 0. After raw pointers were changed to vectors, data() was used in some cases, but now no longer returns nullptr when it is supposed to. This CL fixes that. Bug: chromium:721417 Change-Id: Ia31b75b18dc17d7eed48538145fe5d0d59668843 Reviewed-on: https://pdfium-review.googlesource.com/5353 Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: Nicolás Peña <npm@chromium.org>
2017-05-10Cleanup CGifDecompressor part 2Nicolas Pena
Change-Id: I9754da8d1bf54b328761ac9d83fcc4a3518b4a73 Reviewed-on: https://pdfium-review.googlesource.com/5230 Reviewed-by: dsinclair <dsinclair@chromium.org> Commit-Queue: Nicolás Peña <npm@chromium.org>
2017-05-09Cleanup of CGifDecompressor part 1Nicolas Pena
This CL changes the tag_gif_decompress_struct into CGifDecompressor. It cleans up a bunch of unnecessary function pointers and starts cleaning up the members of the new class. Change-Id: Id49cd8f5377dc8daaa15118551dadad4ddde7931 Reviewed-on: https://pdfium-review.googlesource.com/5170 Reviewed-by: dsinclair <dsinclair@chromium.org> Commit-Queue: Nicolás Peña <npm@chromium.org>
2017-05-03Use enum class GifDecodeStatus instead of integers in fx_gifNicolas Pena
Change-Id: If37147f513a87bafb3299a493393a6bc44165dbe Reviewed-on: https://pdfium-review.googlesource.com/4811 Commit-Queue: Nicolás Peña <npm@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org> Reviewed-by: Lei Zhang <thestig@chromium.org>
2017-04-04Remove unneeded void* casts.Lei Zhang
Change-Id: Icf6b0ec88dfc8dc707b18ca4ad25dd77610b4c91 Reviewed-on: https://pdfium-review.googlesource.com/3622 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2017-04-03Drop FXSYS_ from mem methodsDan Sinclair
This Cl drops the FXSYS_ from mem methods which are the same on all platforms. Bug: pdfium:694 Change-Id: I9d5ae905997dbaaec5aa0b2ae4c07358ed9c6236 Reviewed-on: https://pdfium-review.googlesource.com/3613 Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2017-04-03Drop FXSYS_ from string methodsDan Sinclair
This Cl drops the FXSYS_ from string methods which are the same on all platforms. Bug: pdfium:694 Change-Id: I1698aafd84f40474997549ae91ce35603377e303 Reviewed-on: https://pdfium-review.googlesource.com/3597 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org>
2017-03-14Replace FX_CHAR and FX_WCHAR with underlying types.Dan Sinclair
Change-Id: I96e0a20d66b9184d22f64d8e4ce0dadd5a78c1e8 Reviewed-on: https://pdfium-review.googlesource.com/2967 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org>
2017-03-01Create virtual codec APIs so chrome/fuzzers can link separatelyTom Sepez
The one step to make an actual concrete class is conditionalized in fpdfview and is unconditional in the fuzzer. Also replace the clumsy C-style callbacks with a delegate interface as long as we are making new interfaces. Change-Id: I733a437483ce5e0c34211cfbbda05105336f55b5 Reviewed-on: https://pdfium-review.googlesource.com/2887 Commit-Queue: Tom Sepez <tsepez@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2017-02-27Allow building XFA without additional codecs.Tom Sepez
This is something we'd like to try for initial XFA launches adding in codecs as justified by results in the wild. Adding statistics for the unsupported cases is a follow-up exercise once this builds correctly. We always build all the additional libraries, to allow fuzzers to link against them even if we are not shipping them. The linker will sort it out for the actual code. Rename some files to match the classes contained within. That the existing tests seem to pass with the codecs disabled warrants further investigation. Change-Id: Iad269db91289f12dc9f5dda8f48121d27a0c4367 Reviewed-on: https://pdfium-review.googlesource.com/2836 Commit-Queue: Tom Sepez <tsepez@chromium.org> Reviewed-by: Lei Zhang <thestig@chromium.org>
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