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path: root/core/fxcodec/codec/ccodec_progressivedecoder.h
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2018-05-10Clean up post review commentsRyan Harrison
Cleaning up some nits that came in after my previous codec CL had gone into the CQ. BUG=pdfium:1080 Change-Id: I3845136d370f73c9c96ef732e95b8cf0c9c79d91 Reviewed-on: https://pdfium-review.googlesource.com/32351 Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: Ryan Harrison <rharrison@chromium.org>
2018-05-10Do not build BMP when codec is disabledRyan Harrison
Currently all of the BMP related code is being built when support for the codec is disabled, it just isn't being utilized. Depending on the settings being used, this unneeded code may or may not get stripped during linking. This CL explicitly turns off building the BMP codec code if support for BMP is turned off. BUG=pdfium:1080 Change-Id: I56d40639a5a3631f9c601a1eef3f98873feac94f Reviewed-on: https://pdfium-review.googlesource.com/32370 Commit-Queue: Ryan Harrison <rharrison@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2018-05-09Do not build GIF when codec is disabledRyan Harrison
Currently all of the GIF related code is being built when support for the codec is disabled, it just isn't being utilized. Depending on the settings being used, this unneeded code may or may not get stripped during linking. This CL explicitly turns off building the GIF codec code if support for GIF is turned off. This also catches a few missed cases from previous CLs. BUG=pdfium:1080 Change-Id: Ie7fe2d894d2ae2f8f36ae05e0ff256f2ce6ef8d4 Reviewed-on: https://pdfium-review.googlesource.com/32330 Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: Ryan Harrison <rharrison@chromium.org>
2018-05-09Do not build PNG when codec is disabledRyan Harrison
Currently all of the PNG related code is being built when support for the codec is disabled, it just isn't being utilized. Depending on the settings being used, this unneeded code may or may not get stripped during linking. This CL explicitly turns off building the PNG codec code if support for PNG is turned off. BUG=pdfium:1080 Change-Id: I9c5247145fcadbcb1bd2243aa83350304ba421ff Reviewed-on: https://pdfium-review.googlesource.com/32270 Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: Ryan Harrison <rharrison@chromium.org>
2018-05-09Do not build TIFF when codec is disabledRyan Harrison
Currently all of the TIFF related code is being built when support for the codec is disabled, it just isn't being utilized. Depending on the settings being used, this unneeded code may or may not get stripped during linking. This CL explicitly turns off building the TIFF codec code if support for TIFF is turned off. It also fixes cases in the code base where tif was being used instead of tiff. BUG=pdfium:1080 Change-Id: If6aaa8af5160fdd5b261e63bab7d5984196efcc9 Reviewed-on: https://pdfium-review.googlesource.com/32193 Commit-Queue: Ryan Harrison <rharrison@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org>
2018-05-03Invalidate GIF input buffer when moving file cursor backwardschromium/3420chromium/3419Ryan Harrison
The current implementation of the GIF codec does not handle the file cursor moving backwards correctly. Specifically the input buffer that the data is being read into is not invalidated, so if the entirity of the buffer hasn't been consumed, a chunk of it will be moved to the front before reading in more data, which is just incorrect. Additionally, depending on the specific series of operations, it is possible that the buffer was allocated for more space then had been read into it and the uninitialized portion at the end is being copied to the beginning. The file cursor may move backwards when dealing with an animated gif or other image with multiple frames, since all of the control data is read in on load, and future calls specify what frame to fetch. The code has been changed to treat the input buffer as invalid when moving the cursor to a frame location, which will bypass any of the problematic unused saving behaviour. A call to std::min has been added to prevent allocation of an input buffer larger then the file size. Additionally this CL refactors GifReadMoreData to be clearer about what calculations are occuring, since the existing code reuses a number of vaguely named variables, making it difficult to follow. BUG=chromium:839348, chromium:839361 Change-Id: I2865658187bdf30bcad13ef4cac4f51a8966db11 Reviewed-on: https://pdfium-review.googlesource.com/32054 Reviewed-by: Henrique Nakashima <hnakashima@chromium.org> Commit-Queue: Ryan Harrison <rharrison@chromium.org>
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>
2018-03-21Rename "des_foo" to "dest_foo".Lei Zhang
Destination variables usually have "dest" or "dst" as the prefix. Change-Id: If5bb01a5eafe1e4b42d1a6d653abb1b444b1b2fa Reviewed-on: https://pdfium-review.googlesource.com/28970 Reviewed-by: Henrique Nakashima <hnakashima@chromium.org> Commit-Queue: Lei Zhang <thestig@chromium.org>
2018-01-18Move format specific elements out of ContinueDecodeRyan Harrison
Refactoring the big image format switch in ContinueDecode to call separate methods for each image format, instead of having one giant switch block. This should have no functional changes. BUG=pdfium:976 Change-Id: Ide4892526ee823023c233f0e43b1c98ac8bd1477 Reviewed-on: https://pdfium-review.googlesource.com/23134 Reviewed-by: dsinclair <dsinclair@chromium.org> Commit-Queue: Ryan Harrison <rharrison@chromium.org>
2018-01-17Move format specific elements out of StartDecodechromium/3324Ryan Harrison
Refactoring the big image format switch in StartDecode to call separate methods for each image format, instead of having one giant switch block. This should have no functional changes. BUG=pdfium:976 Change-Id: I4e609ecaec0c5d0e173957c0795555b37c38f9a2 Reviewed-on: https://pdfium-review.googlesource.com/23131 Commit-Queue: Ryan Harrison <rharrison@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2018-01-17Move format specific elements out of DetectImageTypeRyan Harrison
Refactoring the big image format switch in DetectImageType to call separate methods for each image format, instead of having one giant switch block. This should have no functional changes. BUG=pdfium:976 Change-Id: I52cc83879da20b33d471420016f6b1eb53993f0b Reviewed-on: https://pdfium-review.googlesource.com/23130 Commit-Queue: Ryan Harrison <rharrison@chromium.org> Reviewed-by: dsinclair <dsinclair@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>
2017-11-21Avoid passing pointers by reference in core.Lei Zhang
This gets rid of most core/ non-const ref passing, either by passing by pointer-to-pointer instead, or by returning std::pair. Change-Id: Id7bdc355a1a725a05f9fa2f1e982ca8c975beef1 Reviewed-on: https://pdfium-review.googlesource.com/19030 Commit-Queue: Lei Zhang <thestig@chromium.org> Reviewed-by: dsinclair <dsinclair@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>
2017-09-21Move CFX_UnownedPtr to UnownedPtrDan Sinclair
This CL moves CFX_UnownedPtr to UnownedPtr and places in the fxcrt namespace. Bug: pdfium:898 Change-Id: I6d1fa463f365e5cb3aafa8c8a7a5f7eff62ed8e0 Reviewed-on: https://pdfium-review.googlesource.com/14620 Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2017-09-21Rename CFX_RetainPtr to RetainPtrDan Sinclair
This CL renames CFX_RetainPtr to RetainPtr and places in the fxcrt namespace. Bug: pdfium:898 Change-Id: I8798a9f79cb0840d3f037e8d04937cedd742914e Reviewed-on: https://pdfium-review.googlesource.com/14616 Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2017-06-19Make out_row_buffer an std::vectorNicolas Pena
The out_row_buffer of BMPDecompressor is made a vector. This forces the class to have constructor/destructor. Some other members were changed to be of size_t instead of int32_t. Change-Id: I3f70b0322dcee2ddf9a00da7962b43f3415ba545 Reviewed-on: https://pdfium-review.googlesource.com/6691 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2017-06-01Use unique_ptrs for codec contexts in ccodec_progressivedecoder.chromium/3118Tom Sepez
Change-Id: I4deaf8ca946c2dcb6842c5702b02eed1c22b1201 Reviewed-on: https://pdfium-review.googlesource.com/6191 Reviewed-by: Lei Zhang <thestig@chromium.org> Commit-Queue: Tom Sepez <tsepez@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>
2017-06-01Missing one unowned_ptr in ccodec_progressivedecoder.hTom Sepez
Change-Id: Ief386ce0d3887cc2876ce4b430f657b7462e3277 Reviewed-on: https://pdfium-review.googlesource.com/6170 Reviewed-by: Lei Zhang <thestig@chromium.org> Commit-Queue: Tom Sepez <tsepez@chromium.org>
2017-06-01Rename FXJPEG_Context and use unowned ptrTom Sepez
The module class itself is already stateless. Clean up context in its dtor. Change-Id: Icbab7b23ec9d3ceb773b74383056c12b61a38907 Reviewed-on: https://pdfium-review.googlesource.com/6151 Commit-Queue: Tom Sepez <tsepez@chromium.org> Reviewed-by: Lei Zhang <thestig@chromium.org>
2017-05-31Put all CCodec_PngModule state into its context.Tom Sepez
Rename FXPNG_Context and use unowned ptr. Clean up context in its dtor. Then create and destroy using |new|. Change-Id: I7b66e6d0da50a16d3b8d5108ffd931bb01145892 Reviewed-on: https://pdfium-review.googlesource.com/6152 Commit-Queue: Tom Sepez <tsepez@chromium.org> Reviewed-by: Lei Zhang <thestig@chromium.org>
2017-05-31Move all of ccodec_bmpmodule state to its contextTom Sepez
This avoids a stale delegate pointer issue in the module. In theory, it should also allow for multiple decodes at the same time from different contexts within the same module, but this isn't used. Rename associated context, and use |new| to create it. Along the way, resolve a subtle FX_Alloc() vs. user-supplied callback free() issue, and remove supporting code. Bug: 728323 Change-Id: I7bb66bb5d5b4fa173bec2b445a8e71ab691fdf5c Reviewed-on: https://pdfium-review.googlesource.com/6133 Reviewed-by: Lei Zhang <thestig@chromium.org> Commit-Queue: Tom Sepez <tsepez@chromium.org>
2017-05-30Release unowned m_pTiffContext before deleting through itTom Sepez
Workaround for murky ownership. Note the member will now get cleared as a consequence of Release() Bug: 726887 Change-Id: I3eac3d1aa915497f66a57c5effa892a15d10f583 Reviewed-on: https://pdfium-review.googlesource.com/6079 Reviewed-by: dsinclair <dsinclair@chromium.org> Commit-Queue: Tom Sepez <tsepez@chromium.org>
2017-05-25Mass conversion of remaining class members (non-xfa)Tom Sepez
Change-Id: I8365ba80e3395d59a3cf35dbd9d9162e86e712e3 Reviewed-on: https://pdfium-review.googlesource.com/5970 Commit-Queue: Tom Sepez <tsepez@chromium.org> Reviewed-by: Lei Zhang <thestig@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>
2017-05-10Cleanup 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>
2017-05-04Removing unused IFX_Pause parametersDan Sinclair
Remove more IFX_Pause parameters which are not used. Change-Id: I9d10bb6b28d6d4d94ec3c4241b1c5a8a0709264c Reviewed-on: https://pdfium-review.googlesource.com/4875 Reviewed-by: Nicolás Peña <npm@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2017-04-25Remove remaining ICodec_* abstract classesTom Sepez
They are only implemented in one way, and the layering does not required an interface here. Change-Id: Id87591ca237fb66dbfc5aa62b4cc11c2464f5ffa Reviewed-on: https://pdfium-review.googlesource.com/4496 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2017-03-28Revert "Revert "Refcount all CFX_DIBSources (and subclasses) all the time.""Tom Sepez
This reverts commit 31b08d4cdaa17d7a03f35e087096a77036af98ec. Re-landing the patch after fixing skia build issue. Change-Id: Ie7039890088b803a6ec5ce365d70f57277459b48 Reviewed-on: https://pdfium-review.googlesource.com/3245 Commit-Queue: Tom Sepez <tsepez@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2017-03-28Revert "Refcount all CFX_DIBSources (and subclasses) all the time."dsinclair
This reverts commit 0004f29bf6ee3c6060a272c79f14993e92e053c7. Reason for revert: Breaks build with skia_paths enabled (which will break the chrome roll). ../../third_party/pdfium/core/fxge/skia/fx_skia_device.cpp:1858:38: error: no member named 'get' in 'CFX_RetainPtr<CFX_DIBitmap>' ../../third_party/pdfium/core/fxge/skia/fx_skia_device.cpp:1861:42: error: no member named 'get' in 'CFX_RetainPtr<CFX_DIBitmap>' ../../third_party/pdfium/core/fxge/skia/fx_skia_device.cpp:2987:15: error: no viable overloaded '=' ../../third_party/pdfium/core/fxge/skia/fx_skia_device.cpp:2991:18: error: no viable overloaded '=' ../../third_party/pdfium/core/fxge/skia/fx_skia_device.cpp:2999:17: error: no viable overloaded '=' ../../third_party/pdfium/core/fxge/skia/fx_skia_device.cpp:3001:43: error: no member named 'GetObject' in 'CFX_RetainPtr<CFX_DIBitmap>' Original change's description: > Refcount all CFX_DIBSources (and subclasses) all the time. > > There are currently several ownership models for these objects, > including ad-hoc logic for sharing and deletion, and the > now-redundant CFX_DIBitmapRef externally-counted handle to the DIBs. > > Replace them all with the internal refcount scheme. > > Change-Id: I2db399dfc19219eda384f94cc989353b78ce2872 > Reviewed-on: https://pdfium-review.googlesource.com/3166 > Reviewed-by: dsinclair <dsinclair@chromium.org> > Commit-Queue: dsinclair <dsinclair@chromium.org> > TBR=thestig@chromium.org,tsepez@chromium.org,dsinclair@chromium.org,pdfium-reviews@googlegroups.com NOPRESUBMIT=true NOTREECHECKS=true NOTRY=true Change-Id: I678b1fbc5e666cf7a19372ebaff3270fb115ba5e Reviewed-on: https://pdfium-review.googlesource.com/3243 Reviewed-by: dsinclair <dsinclair@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2017-03-28Refcount all CFX_DIBSources (and subclasses) all the time.Tom Sepez
There are currently several ownership models for these objects, including ad-hoc logic for sharing and deletion, and the now-redundant CFX_DIBitmapRef externally-counted handle to the DIBs. Replace them all with the internal refcount scheme. Change-Id: I2db399dfc19219eda384f94cc989353b78ce2872 Reviewed-on: https://pdfium-review.googlesource.com/3166 Reviewed-by: dsinclair <dsinclair@chromium.org> Commit-Queue: dsinclair <dsinclair@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>
2016-12-07Refcount all the IFX_ stream classes all the time.tsepez
We can remove a lot of "bOwnsStream" logic in the process. Always pass these by const reference, in case the called method wants to hang on to the stream (one exception is where we stick a raw pointer into a void* slot in a context from another layer). Review-Url: https://codereview.chromium.org/2451493002
2016-11-02Remove FX_BOOL from coretsepez
Review-Url: https://codereview.chromium.org/2477443002
2016-10-24Rename IFX_ stream nameschromium/2900tsepez
It's been troubling for some time that an IFX_FileStream might actually be an in-memory buffer with no backing file. Review-Url: https://codereview.chromium.org/2443723002
2016-09-29Move core/fxge/include to core/fxgedsinclair
BUG=pdfium:611 Review-Url: https://codereview.chromium.org/2377393002
2016-09-29Move core/fxcrt/include to core/fxcrtdsinclair
BUG=pdfium:611 Review-Url: https://codereview.chromium.org/2382723003
2016-09-29Move core/fxcodec/codec/include and core/fxcodec/include files updsinclair
BUG=pdfium:611 Review-Url: https://codereview.chromium.org/2381063002
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