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2018-08-28Use pdfium::span<> in more image modulesTom Sepez
Change-Id: Ie344bb37abf7dde158d03cc2897dca3588f1a5e3 Reviewed-on: https://pdfium-review.googlesource.com/41550 Reviewed-by: Lei Zhang <thestig@chromium.org> Commit-Queue: Tom Sepez <tsepez@chromium.org>
2018-08-28Rename remaining fx_codec*.cpp to match class and .h file nameTom Sepez
Then include headers in the proper order per standards, since it will no longer trigger a presubmit warning. Change-Id: I6bb86ac90e8fd9aed30b66dac61726f0dea8222c Reviewed-on: https://pdfium-review.googlesource.com/41535 Commit-Queue: Tom Sepez <tsepez@chromium.org> Reviewed-by: Lei Zhang <thestig@chromium.org>
2018-08-28Use std::span<> in CCodec_JPEGModuleTom Sepez
Also rename .cpp file to match class name and .h file. Modify some helper functions to operate on spans. Move some initializations to member declarations. Change-Id: Ie0889bda91daaef80fae6f5681f8ce068e92453b Reviewed-on: https://pdfium-review.googlesource.com/41534 Commit-Queue: Tom Sepez <tsepez@chromium.org> Reviewed-by: Lei Zhang <thestig@chromium.org>
2018-08-28Let CCodec_ProgressiveDecoder::m_pSrcBuf outlive contextsTom Sepez
This requires making some members unique_ptr<> to preserve the destruction order. Bug: 877766 Change-Id: I69e0173fdde7e9cd0d24017d6c829b9b9cf600c0 Reviewed-on: https://pdfium-review.googlesource.com/41490 Commit-Queue: Tom Sepez <tsepez@chromium.org> Reviewed-by: Lei Zhang <thestig@chromium.org>
2018-08-27Rework CCODEC_ProgressiveDecoder.Tom Sepez
Rename .cpp file to match class and .h file (!!!) Put initialziations into header. Change-Id: I2cbc7608287f8df887ce186d122dcd3db2aef19b Reviewed-on: https://pdfium-review.googlesource.com/41511 Commit-Queue: Tom Sepez <tsepez@chromium.org> Reviewed-by: Lei Zhang <thestig@chromium.org>
2018-08-27Use pdfium::span<> in CCodec_RLScanlineDecoderTom Sepez
Change-Id: I3dc2dd54d89858722c2aea4b9e694308796b8274 Reviewed-on: https://pdfium-review.googlesource.com/41510 Reviewed-by: Lei Zhang <thestig@chromium.org> Commit-Queue: Tom Sepez <tsepez@chromium.org>
2018-08-27The final game: mark everything final.Tom Sepez
Then revert the ones that break compilation. Fix one IWYU noticed during presubmit. Change-Id: I881a8a72818e55dbc4816247e35ff5e3015194e7 Reviewed-on: https://pdfium-review.googlesource.com/41470 Reviewed-by: Lei Zhang <thestig@chromium.org> Commit-Queue: Tom Sepez <tsepez@chromium.org>
2018-08-24Rename CFX_DIBSource to CFX_DIBBase.Tom Sepez
It is not a source from which you can get CFX_DIBs, but rather a base class from which all DIBs inherit. Do the same thing for the CPDF_DIBSource wrapper class. Mechanical change apart from adding a one-line comment in cfx_dibbase.h Change-Id: Id2bde87813ca301d9fafc55ce08d703dfc6a7184 Reviewed-on: https://pdfium-review.googlesource.com/41352 Reviewed-by: Lei Zhang <thestig@chromium.org> Commit-Queue: Tom Sepez <tsepez@chromium.org>
2018-08-24Use span<uint8_t> in more fxcodec code.Tom Sepez
There are also small tweaks in tests to ensure strict order of stack variable lifetimes. Change-Id: Ic9d5c6a2bdd378b517be627f8e29f725bafdc2ad Reviewed-on: https://pdfium-review.googlesource.com/41310 Reviewed-by: Lei Zhang <thestig@chromium.org> Commit-Queue: Tom Sepez <tsepez@chromium.org>
2018-08-23Fix shadowed variablesRyan Harrison
This CL fixes instances of variable shadowing that are discovered by turning on -Wshadow. BUG=pdfium:1137 Change-Id: I418d50de89ecbeb12e85b23a358bc61e8f16e888 Reviewed-on: https://pdfium-review.googlesource.com/41150 Commit-Queue: Ryan Harrison <rharrison@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org> Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
2018-08-22Use UnownedPtr<> in JBig2_TrdProc, part 2.Tom Sepez
Re-order some locals to obey strict lifetime constraint. Pack a little tighter. Change-Id: Iae011d21b934fac865cf10ac20c046c8917d3a98 Reviewed-on: https://pdfium-review.googlesource.com/40915 Reviewed-by: Lei Zhang <thestig@chromium.org> Commit-Queue: Tom Sepez <tsepez@chromium.org>
2018-08-21Use UnownedPtr<> in JBIG2_SDDProc.Tom Sepez
Pack a little tighter while at it. Change-Id: If7cbb324ebf828a4bb60eb364fc3e0f31625e57f Reviewed-on: https://pdfium-review.googlesource.com/40913 Reviewed-by: Lei Zhang <thestig@chromium.org> Commit-Queue: Tom Sepez <tsepez@chromium.org>
2018-08-21Use UnownedPtr<> in JBig2_GrrdProc.h.Tom Sepez
Change-Id: Ie3502443b801ae4af6e4c9e533f28d102703104c Reviewed-on: https://pdfium-review.googlesource.com/40912 Reviewed-by: Lei Zhang <thestig@chromium.org> Commit-Queue: Tom Sepez <tsepez@chromium.org>
2018-08-21Use UnownedPtr<> in CJBig2_TRDProc.Tom Sepez
First real use case of assigning Unowned to MaybeOwned. Change-Id: Ia5bc7102012f7a09120ba02d38cf751547d5c005 Reviewed-on: https://pdfium-review.googlesource.com/40914 Reviewed-by: Lei Zhang <thestig@chromium.org> Commit-Queue: Tom Sepez <tsepez@chromium.org>
2018-08-21Avoid copying some big vectors in JBIG2_SymbolDictTom Sepez
Change-Id: I662f65b53a1a17be0062c92452d82acbbe157477 Reviewed-on: https://pdfium-review.googlesource.com/40910 Reviewed-by: Lei Zhang <thestig@chromium.org> Commit-Queue: Tom Sepez <tsepez@chromium.org>
2018-08-21Fix lifetime issue in CJBig2_GRDProc::ProgressiveArithDecodeStateTom Sepez
Bug: 876222 Change-Id: I56c20c006ee26650f32b9ec90f3c7f91466b7470 Reviewed-on: https://pdfium-review.googlesource.com/40890 Reviewed-by: Lei Zhang <thestig@chromium.org> Commit-Queue: Tom Sepez <tsepez@chromium.org>
2018-08-20Use UnownedPtr<> in JBig2_GrdProc.hTom Sepez
Pack a little tighter while we're at it. Change-Id: I8cbefe5df1b4340cb55ea14a5ae00ebc1ad07114 Reviewed-on: https://pdfium-review.googlesource.com/40774 Reviewed-by: Lei Zhang <thestig@chromium.org> Commit-Queue: Tom Sepez <tsepez@chromium.org>
2018-08-16Remove default arg from CFX_BinaryBuf::EstimateSize().Tom Sepez
Disentangle setting an allocation step from estimating size, these separate concepts can be handled separately. Change-Id: I27bf3e193018a4377ccf266207b889fdb672826c Reviewed-on: https://pdfium-review.googlesource.com/40210 Reviewed-by: Lei Zhang <thestig@chromium.org> Commit-Queue: Tom Sepez <tsepez@chromium.org>
2018-08-14Remove more default arg = nullptr cases.Tom Sepez
Bring in line with standards. Remove argument entirely for mac code that is always nullptr. Change-Id: I0710bdbd51fc0bc2e1d428ef44976be39a631147 Reviewed-on: https://pdfium-review.googlesource.com/40091 Reviewed-by: Lei Zhang <thestig@chromium.org> Commit-Queue: Tom Sepez <tsepez@chromium.org>
2018-08-13Implement CFX_CodecMemory.Lei Zhang
This class is much simpler than CFX_MemoryStream and does only what CFX_BmpDecompressor and CFX_GifContext needs. Swap out CFX_MemoryStream and remove CFX_MemoryStream::Seek(). BUG=pdfium:263 Change-Id: Ifd8ce4d2b6c9fedd6ec842d46f54fc8e654fbca7 Reviewed-on: https://pdfium-review.googlesource.com/39880 Commit-Queue: Lei Zhang <thestig@chromium.org> Reviewed-by: Ryan Harrison <rharrison@chromium.org>
2018-08-10Remove const args and const_casts where not required.Tom Sepez
Introduce const/non-const versions of method where required. Part of the war on const_cast<>. Tidy one expression to use [] instead of .data(). Change-Id: I41e45669c79eee242ff2244c7dc3afcf6386a433 Reviewed-on: https://pdfium-review.googlesource.com/39852 Reviewed-by: Lei Zhang <thestig@chromium.org> Commit-Queue: Tom Sepez <tsepez@chromium.org>
2018-08-10Remove |typedef struct| in favor of just |struct|.Tom Sepez
Because I saw one in some other code and decided to hunt them all. These are all defined in C++ context, so no chance of C compatiblity. Note that such a declaration without a struct tag will bypass the [chromium-style] out-of-line constructor/destructor warnings, so add constructors/destructors where required. Change-Id: Ib821d8bc2f68ccf7028b0f73432e8e7c93a953ba Reviewed-on: https://pdfium-review.googlesource.com/39851 Commit-Queue: Tom Sepez <tsepez@chromium.org> Reviewed-by: Lei Zhang <thestig@chromium.org>
2018-08-10Fix a JBIG2 decoding regression.Lei Zhang
When trying to sanity check SBNUMINSTANCES for JBIG2 text regions for https://crbug.com/837192, the check did not take data encoding into account. Fix this by assuming there is a potential for 16:1 compression in the lossless encoding. BUG=chromium:871848 Change-Id: I991dacff9fbefa4e302f5ce92a355902ef94308a Reviewed-on: https://pdfium-review.googlesource.com/39790 Reviewed-by: Ryan Harrison <rharrison@chromium.org> Commit-Queue: Lei Zhang <thestig@chromium.org>
2018-08-10Remove const_cast<> from CFX_LZWDecompressor::Decode() caller.Tom Sepez
Because the argument to Decode() can be const. Part of the ongoing war against const_cast<>. Change-Id: I3a8402277dbfc4fd80b1dd60225de57b732713f8 Reviewed-on: https://pdfium-review.googlesource.com/39832 Reviewed-by: Ryan Harrison <rharrison@chromium.org> Commit-Queue: Tom Sepez <tsepez@chromium.org>
2018-08-10Add CFX_DIBSource::GetWritableScanline().Tom Sepez
Remove a bunch of const_cast<uint8_t*> or equivalent. This will also help when we convert to span<>, since casting spans is a nuisance. Change-Id: I330e5041cbaf33a84425fc4242a3dfacf5ca8011 Reviewed-on: https://pdfium-review.googlesource.com/39831 Commit-Queue: Lei Zhang <thestig@chromium.org> Reviewed-by: Lei Zhang <thestig@chromium.org>
2018-08-07Combine redundant CJBig2_Image code.Tom Sepez
Once upon a time, someone cut-n-pasted ~300 lines of code to avoid creating a default rectangle and to save a couple of additions. Then one path got one set of fixes (safe ints) and the other path got a second set of fixes (source bounds checks). Re-unify, picking up all the fixes, since they are identical otherwise. Change-Id: I099e854bc8ad027efabd5c2077c4319ee8221256 Reviewed-on: https://pdfium-review.googlesource.com/39550 Reviewed-by: Lei Zhang <thestig@chromium.org> Commit-Queue: Tom Sepez <tsepez@chromium.org>
2018-08-06Small optimization in CJBig2_Image::SubImage()Tom Sepez
We can use the memcpy() path whenever byte aligned. Split code into helper methods. Add test for fast path specifically. Change-Id: I52f6129b0e788eb2da60536cfa6fce12a0609375 Reviewed-on: https://pdfium-review.googlesource.com/39432 Reviewed-by: Lei Zhang <thestig@chromium.org> Commit-Queue: Tom Sepez <tsepez@chromium.org>
2018-08-02Use more helper macros/methods in JBig2_Image.cpp.Tom Sepez
Bundling the test with the accessor is a safer pattern than performing the check externally. Add test for CopyLine(). Change-Id: I7056bf33bdca40cb84a89e4928567a389d88ff1c Reviewed-on: https://pdfium-review.googlesource.com/39431 Reviewed-by: Lei Zhang <thestig@chromium.org> Commit-Queue: Tom Sepez <tsepez@chromium.org>
2018-08-02Tidy JBig2_Image.cppchromium/3511Tom Sepez
Add checked/unchecked GetLine(y) methods and use them. Introduce BIT_INDEX_TO_ALIGNED_BYTE() to de-mystify some shifting. Move local declarations to spot of use. Remove spurious Fill(), as we initialize to 0s. Initialize members in header where possible. Add unit tests. Change-Id: I41ccb91b57320dbc790fd0f680f6d98571280343 Reviewed-on: https://pdfium-review.googlesource.com/39370 Commit-Queue: Tom Sepez <tsepez@chromium.org> Reviewed-by: Lei Zhang <thestig@chromium.org>
2018-08-02Introduce JBIG2_PUTDWORD() macro in CJBIG2_Image.hTom Sepez
Provide symmetry with JBIG2_GETDWORD(). Avoid potential illegal undefined signed shift in JBIG2_GETDWORD(). Get better column alignment under cl-format via pointless shift by zeros for consistency. Change-Id: I13d46fe7976074e26df72b58a055788390191364 Reviewed-on: https://pdfium-review.googlesource.com/39430 Reviewed-by: Lei Zhang <thestig@chromium.org> Commit-Queue: Tom Sepez <tsepez@chromium.org>
2018-08-01Bounds check lineSrc in JBig2_Image.cpp.Tom Sepez
No matter how the dimensions might be determined, we know the hard end of the source line, and can use it for a bounds check. We expect the size is quantized to a multiple of m_stride, so as long as each block operates within an m_stride, the initial check should be sufficient. Bug: 867501 Change-Id: Iaf9936557b856f3eb09fef522f3e6738aa4f38f0 Reviewed-on: https://pdfium-review.googlesource.com/39310 Reviewed-by: Lei Zhang <thestig@chromium.org> Commit-Queue: Tom Sepez <tsepez@chromium.org>
2018-07-27Merge several methods into JBig2GrdProc::DecodeArithTemplateUnoptchromium/3505Nicolas Pena
This CL merges DecodeArithTemplateXUnopt for X=0,1,2. This is similar to how three methods were merged into DecodeArithOpt3. Change-Id: Ib0d4f14de6a8c924517d82eaec7577961503a325 Reviewed-on: https://pdfium-review.googlesource.com/38935 Commit-Queue: Nicolás Peña Moreno <npm@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org>
2018-07-25Remove some ASSERT (and cast) in favor of checked cases.Tom Sepez
Because it is a stronger pattern at runtime. These were found by essentially: grep -ni '\bassert\b.*type' Change-Id: I913d77139053e8980528597a6633e1859e5204c4 Reviewed-on: https://pdfium-review.googlesource.com/38890 Reviewed-by: Lei Zhang <thestig@chromium.org> Commit-Queue: Tom Sepez <tsepez@chromium.org>
2018-07-25Use incomplete type CFX_BmpContext in place of void*chromium/3503Tom Sepez
Allows killing off static_cast<> in two places. Change-Id: I467b69d92e8cbda5c2916b6ed2e97c173d8b4f2f Reviewed-on: https://pdfium-review.googlesource.com/38897 Reviewed-by: Lei Zhang <thestig@chromium.org> Commit-Queue: Tom Sepez <tsepez@chromium.org>
2018-07-06Fix regression in CJBig2_TRDProc.chromium/3486chromium/3485chromium/3484Lei Zhang
Commit 7695dd0f mistakenly changed a signed integer to unsigned. This is incorrect because right shifts for negative integers behave differently. BUG=chromium:859284 Change-Id: Id9c54848b15ace1de080c174f261dd2c064018e0 Reviewed-on: https://pdfium-review.googlesource.com/37230 Reviewed-by: Henrique Nakashima <hnakashima@chromium.org> Commit-Queue: Lei Zhang <thestig@chromium.org>
2018-07-02Check for more integer overflows in CJBig2_TRDProc.Lei Zhang
BUG=chromium:859284 Change-Id: I41ce5de4cca0a863dc6e60b64fd69d36c2672a64 Reviewed-on: https://pdfium-review.googlesource.com/36790 Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: Lei Zhang <thestig@chromium.org>
2018-06-29Use pdfium::span with CPDF_IccProfile and friends.Lei Zhang
Change-Id: I88d3e86a1dad75ef9c6bfb3401af6606479031a7 Reviewed-on: https://pdfium-review.googlesource.com/36634 Commit-Queue: Lei Zhang <thestig@chromium.org> Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
2018-06-29Remove out param from CCodec_IccModule::CreateTransform_sRGB().Lei Zhang
Its return value contains the same data. Change-Id: I2bf4e72faf978e5d491bec573babc8099cda4e5a Reviewed-on: https://pdfium-review.googlesource.com/36633 Commit-Queue: Lei Zhang <thestig@chromium.org> Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
2018-06-29Add ScopedCmsProfile.Lei Zhang
Using this unique_ptr avoids the need for explicit cmsCloseProfile() calls in CCodec_IccModule::CreateTransform_sRGB(). Change-Id: I5b2d5d9800ea344aceb0ed5c6b745a2925bab9c9 Reviewed-on: https://pdfium-review.googlesource.com/36632 Commit-Queue: Lei Zhang <thestig@chromium.org> Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
2018-06-29Clean up CLcmsCmm.Lei Zhang
Make members const and private. Fix nits. Change-Id: I945bc26438f8fbd6904dc1b15513ab9e51170dc7 Reviewed-on: https://pdfium-review.googlesource.com/36631 Commit-Queue: Lei Zhang <thestig@chromium.org> Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
2018-06-29Delete dead code in CCodec_IccModule.Lei Zhang
Change-Id: I711654cfb1ab43a5d17afbe6f877c1860dd1b7f0 Reviewed-on: https://pdfium-review.googlesource.com/36630 Commit-Queue: Lei Zhang <thestig@chromium.org> Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
2018-06-29Better determine if ICC colorspaces can be used for blending.Lei Zhang
Implement CPDF_ColorSpace::IsNormal() and check it when rendering. While IsNormal() is trivial for most colorspaces, it needs to be implemented separately for ICC colorspaces. This fixes a rendering regression from commit 1c0de38c. BUG=chromium:847346 Change-Id: Iaafed3f8ee40b26ac2cbfbdf2251407f7935311b Reviewed-on: https://pdfium-review.googlesource.com/36571 Reviewed-by: Henrique Nakashima <hnakashima@chromium.org> Commit-Queue: Lei Zhang <thestig@chromium.org>
2018-06-29Limit image size in CJBig2_PDDProc.Lei Zhang
CJBig2_PDDProc internally creates a CJBig2_GRDProc to create an image. If the image is too big, then processing it can use up too much memory. BUG=chromium:857106 Change-Id: I06a9eaed6941be1cbb7481d21048e6a1681696b7 Reviewed-on: https://pdfium-review.googlesource.com/36490 Commit-Queue: Ryan Harrison <rharrison@chromium.org> Reviewed-by: Ryan Harrison <rharrison@chromium.org>
2018-06-29Clean up CJBig2_PDDProc.Lei Zhang
Change-Id: Ia83ac5dae0dedf55f1b0f0cf2a728c64474f72db Reviewed-on: https://pdfium-review.googlesource.com/36450 Commit-Queue: Ryan Harrison <rharrison@chromium.org> Reviewed-by: Ryan Harrison <rharrison@chromium.org>
2018-06-28Use unique_ptr in ccodec_tiffmodule.cppTom Sepez
Change-Id: I9c829a09a1c5ecdf011b1a9804a65e77b0e199b7 Reviewed-on: https://pdfium-review.googlesource.com/36371 Reviewed-by: dsinclair <dsinclair@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2018-06-28Use spans and std::unique_ptrs in fx_codec_flate.cppTom Sepez
Also avoid needless use of void* in place of actual type. Also free context with free function corresponding to its allocator, in case the m_ functions change down the road. Change-Id: I384f6b309c2522eb0faafbe73b94cc3bf582dbb8 Reviewed-on: https://pdfium-review.googlesource.com/36370 Reviewed-by: dsinclair <dsinclair@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2018-06-27Remove unused m_bGif* fields from CFX_DIBAttributeTom Sepez
Two are completely unused, and two are set but never referenced. Change-Id: I0173123e33a4240aef9ed24aaee9e1df6cf9aa0a Reviewed-on: https://pdfium-review.googlesource.com/36290 Reviewed-by: dsinclair <dsinclair@chromium.org> Commit-Queue: Tom Sepez <tsepez@chromium.org>
2018-06-27Use spans and UnownedPtrs in cjpx_decoder.hTom Sepez
Change-Id: I1c9f8221ce7a0e42407e93deec481be2e941cfde Reviewed-on: https://pdfium-review.googlesource.com/36210 Commit-Queue: Tom Sepez <tsepez@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2018-06-20Add in a size guard to JPX fuzzerRyan Harrison
Setting an upper limit to the size of images being processed in the JPX fuzzer to reduce timeouts due to images just being really big. Also cleaned the types for passing pitch down to reduce the signedness conversions. BUG=chromium:834561 Change-Id: I28b7a2537a922ed7a9ca2f8ed049ae78dd471f49 Reviewed-on: https://pdfium-review.googlesource.com/35570 Reviewed-by: Henrique Nakashima <hnakashima@chromium.org> Commit-Queue: Ryan Harrison <rharrison@chromium.org>
2018-06-14Merge 3 methods of CJBig2_GRDProc togetherchromium/3465chromium/3464chromium/3463chromium/3462chromium/3461Nicolas Pena
This CL merges 3 methods into a single DecodeArithOpt3(). The code is the same, except for some constants which are extracted out as namespace variables. Change-Id: I6d9127d71b5e7c4c75e31a736b0f3307bb78a076 Reviewed-on: https://pdfium-review.googlesource.com/35170 Commit-Queue: Nicolás Peña Moreno <npm@chromium.org> Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
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