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2017-11-07More FX_SAFE_INT32 in CJBig2_TRDProcNicolas Pena
Bug: chromium:781780 Change-Id: Ie92d8b570c37e9b3364d1ff4502f444a275ee6c2 Reviewed-on: https://pdfium-review.googlesource.com/17910 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2017-11-03Remove flags param from FXMEM_DefaultAlloc() and friends.Lei Zhang
Change-Id: I24404be0065156a1cfdec31bafdf72c27fa70142 Reviewed-on: https://pdfium-review.googlesource.com/17792 Reviewed-by: Chris Palmer <palmer@chromium.org> Commit-Queue: Lei Zhang <thestig@chromium.org>
2017-11-03Check for NULL pointer in _TIFFfree().chromium/3258Lei Zhang
PartitionAlloc does not handle free(NULL), so _TIFFfree() needs to do the check, just like png_free_default() and _cmsFree() for other third party code. BUG=chromium:780709 Change-Id: I4e2ff0ba642c66e4a73e151c9ab42ebb42d34a5b Reviewed-on: https://pdfium-review.googlesource.com/17791 Reviewed-by: Chris Palmer <palmer@chromium.org> Commit-Queue: Lei Zhang <thestig@chromium.org>
2017-10-30More safe ints in CJBig2_TRDProcNicolas Pena
Bug: chromium:778961 Change-Id: I1d08b3282304931276c24e50392c10b21780dcde Reviewed-on: https://pdfium-review.googlesource.com/16971 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2017-10-25Enforce end of data in CJBig2_ArithDecoderNicolas Pena
Quoting the JBIG2 spec: "If B is a 0xFF byte, then B1 (the byte pointed to by BP+1) is tested. If B1 exceeds 0x8F, then B1 must be one of the marker codes. The marker code is interpreted as required, and the buffer pointer remains pointed to the 0xFF prefix of the marker code which terminates the arithmetically compressed data. 1-bits are then fed to the decoder until the decoding is complete. This is shown by adding 0xFF00 to the C-register and setting the bit counter CT to 8." Our implementation is the alternative (faster for software according to the spec), where only CT is changed to 8. Reaching this part of the code means we will never read from stream again so we should be wrapping up the decoding. To ensure this, the |m_Complete| attribute is set to true if we reach this code again, which will result in bailing out next time DECODE is called. Bug: 767156 Change-Id: I434d46bc7914713a065f0e4da079bbc9b5dd216c Reviewed-on: https://pdfium-review.googlesource.com/16791 Reviewed-by: dsinclair <dsinclair@chromium.org> Commit-Queue: Nicolás Peña Moreno <npm@chromium.org>
2017-10-23Fix some integer overflows in CJBig2_TRDProcNicolas Pena
Bug: 649278 Change-Id: Ib9084f6d9bb7dc7bf3713faa22d3a26822a96681 Reviewed-on: https://pdfium-review.googlesource.com/16550 Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: Nicolás Peña Moreno <npm@chromium.org>
2017-10-23Return error when attempting to load frame with 0 heightRyan Harrison
A frame with 0 height will have no data, so there is not point in attempting to load it. Additionally some of the loading code assumes a non-zero height implicitly. BUG=chromium:770470 Change-Id: I38b222b46b43ce5d47924526913285510be40603 Reviewed-on: https://pdfium-review.googlesource.com/16551 Reviewed-by: dsinclair <dsinclair@chromium.org> Commit-Queue: Ryan Harrison <rharrison@chromium.org>
2017-10-05Make GIF decoder more standards complaintRyan Harrison
Fixed issue with unit tests that was causing raw data to be backwards and reverted related LSB -> MSB change that was introduced due to this. If global palette not set then the background colour index should be 0. Check that background colour index is valid when global palette exists. Check if transparency index is valid for the palette of the frame it is being applied to. BUG=chromium:770337 Change-Id: I5d9b648f45bbb4c93218664a7035e4d01dbeb627 Reviewed-on: https://pdfium-review.googlesource.com/15453 Commit-Queue: Ryan Harrison <rharrison@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2017-10-03Rewrite how GIF headers are readRyan Harrison
Break up reading the signature and local screen descriptors into seperate functions. Fix a bug in how matching in the signature validation works. Move LSD value assignment to after sufficient data has been confirmed. Convert LSB to MSB methods where they were just wrong. Add unit tests for ReadData, SetInputBuffer, ReadSignature, ReadLocalScreenDescriptor, and ReadHeader. BUG=pdfium:913,chromium:770470 Change-Id: I1683b8aefc11300625b9be8087c6988549308a8f Reviewed-on: https://pdfium-review.googlesource.com/15250 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2017-10-02Replace GetWord_LSBFirst with FXWORD_GET_LSBFIRSTchromium/3231Ryan Harrison
The existing implementation of a LSB first word method was incorrect, in addition it was implemented to the BMP code, but also used in the GIF code. Thus is should be moved to a common location. Also added in an implementation for FXWORD_GET_MSBFIRST, since the GIF code will need this. BUG=pdfium:914 Change-Id: I0e84813356fbd456b293a190da3c2cde01a6580b Reviewed-on: https://pdfium-review.googlesource.com/15210 Reviewed-by: Tom Sepez <tsepez@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org> Commit-Queue: Ryan Harrison <rharrison@chromium.org>
2017-10-02More define cleanupDan Sinclair
Remove unused defines; Move to .cpp files where possible; Fixup values. Change-Id: I88cd5deb04b14ab8e9f8097a695c3d0b52d64b4c Reviewed-on: https://pdfium-review.googlesource.com/15130 Reviewed-by: Henrique Nakashima <hnakashima@chromium.org> Reviewed-by: Ryan Harrison <rharrison@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2017-10-02Removing unused definesDan Sinclair
Remove unused defines. Change-Id: Ibf10d8470f19cbf4528fe1342398a39ef15c1d12 Reviewed-on: https://pdfium-review.googlesource.com/15110 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: Ryan Harrison <rharrison@chromium.org>
2017-09-28Convert LZW decompressor to use vector instead of static arraychromium/3230chromium/3229chromium/3228chromium/3227Ryan Harrison
Speciifically replacing what was called the "stack_", an array, with a vector called "decompressed_". The fact that this data structure wasn't actually a stack caused a lot of grief when refactoring. BUG=pdfium:903 Change-Id: I056f8fc9183bcde67a03dc9de0dae9ddf9fb0f37 Reviewed-on: https://pdfium-review.googlesource.com/15092 Reviewed-by: dsinclair <dsinclair@chromium.org> Commit-Queue: Ryan Harrison <rharrison@chromium.org>
2017-09-28Simplify some OS checks to PLATFORM checksDan Sinclair
This CL simplifies the OS == WIN{32|64} checks to be PLATFORM == WINDOWS checks. Change-Id: I1493d316dd457b0228e4ef39db4cf1d2b8abf97d Reviewed-on: https://pdfium-review.googlesource.com/14870 Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2017-09-27Remove error strings from BMP decoding pathRyan Harrison
These are error strings are set but never used for anything. BUG=pdfium:907 Change-Id: I08d9547009116f7386d15b4a965b9a99c7bf1997 Reviewed-on: https://pdfium-review.googlesource.com/15010 Reviewed-by: dsinclair <dsinclair@chromium.org> Commit-Queue: 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>
2017-09-27Remove error string from CGifContextRyan Harrison
This string is set, but never used. BUG=pdfium:907 Change-Id: I57555d0dd3670b245554ff2d7163d1d04bcdb7e8 Reviewed-on: https://pdfium-review.googlesource.com/14930 Reviewed-by: dsinclair <dsinclair@chromium.org> Commit-Queue: Ryan Harrison <rharrison@chromium.org>
2017-09-27Remove FXSYS_strlen and FXSYS_wcslenchromium/3226Ryan Harrison
With the conversion of internal string sizes to size_t, these wrappers are no longer needed. Replacing them with strlen and wcslen respectively. BUG=pdfium:828 Change-Id: Ia087ca2ddaf688a57ec9bd9ddfb8533cbe41510d Reviewed-on: https://pdfium-review.googlesource.com/14890 Commit-Queue: Ryan Harrison <rharrison@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2017-09-27Remove FX_STRSIZE and replace with size_tRyan Harrison
BUG=pdfium:828 Change-Id: I5c40237433ebabaeabdb43aec9cdf783e41dfe16 Reviewed-on: https://pdfium-review.googlesource.com/13230 Reviewed-by: dsinclair <dsinclair@chromium.org> Commit-Queue: Ryan Harrison <rharrison@chromium.org>
2017-09-27Make names of GIF types less opaqueRyan Harrison
A lot of the structs in the GIF code use acronyms that are non-obvious unless you are familar with the GIF spec, and even then lead to lots of looking back. Making the naming more explicit. Also converted GifImage to be a struct, since it didn't have any methods defined for it. BUG=pdfium:903 Change-Id: I97ca2adfdc4ada8bcaef5f8f317c1dea7365d70d Reviewed-on: https://pdfium-review.googlesource.com/14836 Reviewed-by: dsinclair <dsinclair@chromium.org> Commit-Queue: Ryan Harrison <rharrison@chromium.org>
2017-09-27Add in missing ! to conditionalRyan Harrison
This was causing us to use the local palette values when they didn't exist, instead of the global palette values. BUG=chromium:769292 Change-Id: I02d19cbcf0cf9e362e123fc7648d8f47991b8155 Reviewed-on: https://pdfium-review.googlesource.com/14910 Reviewed-by: dsinclair <dsinclair@chromium.org> Commit-Queue: Ryan Harrison <rharrison@chromium.org>
2017-09-27Remove unreachable code in fx_codec_iccNicolás Peña
This CL removes unreachable code and also removes the flag Icc_Format_DEFAULT which becomes unused. Bug: chromium:346399 Change-Id: I1cdd0f70ffec2abcd20ddf5b181273971b92ecaa Reviewed-on: https://pdfium-review.googlesource.com/14850 Commit-Queue: Nico Weber <thakis@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org> Reviewed-by: Nico Weber <thakis@chromium.org>
2017-09-27Cleanup FX macrosDan Sinclair
This CL renames the FX_OS defines to have _OS_ in their names and drops the _DESKTOP suffix. The FXM defines have been changed to just FX. Change-Id: Iab172fba541713b5f6d14fb8098baf68e3364c74 Reviewed-on: https://pdfium-review.googlesource.com/14833 Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2017-09-26Remove _FX_IOS_chromium/3225Dan Sinclair
The _FX_IOS_ define is never defined, so it isn't useful to check _FX_OS_ against. Remove. Change-Id: I90b50a1a0dc165073ed223cbfe861b9a227818dd Reviewed-on: https://pdfium-review.googlesource.com/14831 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org>
2017-09-26Confirm that a global palette has data before attempting to use itRyan Harrison
Previous implementation assumed that if the local colour palette was not specified and the global palette had its size specified, then use the global. If the global palette is disable, it will not have data, but it may have a size. Technically the size is giberish in this case, but the value is allowed to be non-zero, so isn't a sufficient check. BUG=chromium:768089 Change-Id: Iaec15fcd65f3983056df7d56d29118a516334cd9 Reviewed-on: https://pdfium-review.googlesource.com/14819 Reviewed-by: dsinclair <dsinclair@chromium.org> Commit-Queue: Ryan Harrison <rharrison@chromium.org>
2017-09-26Move LZW decoder out of fx_gifRyan Harrison
CGifLZWDecoder has been moved out into its own file, name changed to CFX_LZWDecoder, member variable names updated, creation pattern changed, and unit tests added. Wrt the creation pattern, there is no longer a constructor and 2 initialization methods that need to be called. Instead all of the initialization is done as part of the constructor. A wrapper has been added for generating a std::unique_ptr<CFX_LZWDecoder>, so that params can be validated. BUG=pdfium:900,pdfium:901,pdfium:903,pdfium:904 Change-Id: Idcbe773f7fb18b08e64d5a89bfd87d4801332c53 Reviewed-on: https://pdfium-review.googlesource.com/14814 Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: Ryan Harrison <rharrison@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>
2017-09-21Move 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>
2017-09-21Move CFX_MaybeOwned to fxcrt::MaybeOwnedDan Sinclair
This CL moves CFX_MaybeOwned into the fxcrt namespace and removes the CFX_ prefix. The test names for maybe owned were updated to be in the MaybeOned test suite instead of the fxcrt suite. Bug: pdfium:898 Change-Id: I0c07057d66c8610e7b19133094b4507fff725e76 Reviewed-on: https://pdfium-review.googlesource.com/14470 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org>
2017-09-20Isolate lcms2 usage to a few files.Lei Zhang
Then set up the right dependencies for them. BUG=chromium:765914 Change-Id: I036cd888c741927d5efe0d020c6676f169e7cbb1 Reviewed-on: https://pdfium-review.googlesource.com/14410 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2017-09-20Forward declare codec modules in fx_codec.h.Lei Zhang
Change-Id: I020b862619f3f93f71dbb027b9e799d78744f686 Reviewed-on: https://pdfium-review.googlesource.com/14391 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2017-09-20Move CCodec_ScanlineDecoder to its own file.Lei Zhang
Change-Id: Icacf877e2b66ca7d49637dcf9eaec0f99bcdd8bb Reviewed-on: https://pdfium-review.googlesource.com/14390 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2017-09-19Remove unneeded core/fxcodec/fx_codec.h includes.chromium/3220Lei Zhang
Change-Id: I703321108712e8c4a11a8343ecf8b1a8804c1d1a Reviewed-on: https://pdfium-review.googlesource.com/14352 Reviewed-by: Ryan Harrison <rharrison@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org> Commit-Queue: Lei Zhang <thestig@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>
2017-09-14Fix decoding of JBIG2 integers for values with large magnitude.Henrique Nakashima
Now considering anything not representable by a 32-bit signed int as OOB rather than decoding some arbitrary overflowed value. Bug: chromium:761666 Change-Id: I00f5a3abadca51f9bedc5e5d78f7f184040c2f33 Reviewed-on: https://pdfium-review.googlesource.com/14010 Commit-Queue: Henrique Nakashima <hnakashima@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org> Reviewed-by: Ryan Harrison <rharrison@chromium.org>
2017-09-14Revert moving JPX library decode from Init to DecodeRyan Harrison
Due to some of the size parameters for allocating space in Decode() depending on the values produced by opj_decode(), this change was causing misallocation of space, which in turn was causing illegal reads/writes. The issue with excessive memory usage that the original CL was trying to change is less significant than the above mentioned problems, so reverting this fix and looking for another solution to the problem. This will re-open bugs https://crbug.com/754423 and https://crbug.com/761005. BUG=chromium:764177,chromium:754423,chromium:761005 Change-Id: I1cafac8a8117ec1e3bc32b31196bdec719d46477 Reviewed-on: https://pdfium-review.googlesource.com/13950 Commit-Queue: Ryan Harrison <rharrison@chromium.org> Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
2017-09-11Address nits missed from original reviewchromium/3213Ryan Harrison
BUG=chromium:761005 Change-Id: I538e49f1eeb32891b33677d8587d2bed110b1fc1 Reviewed-on: https://pdfium-review.googlesource.com/13692 Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: Ryan Harrison <rharrison@chromium.org>
2017-09-11Use the right allocate and free functions in OpenJPEG.Chris Palmer
This patch was authored by Ke Liu of Tencent's Xuanwu Lab. BUG=762374 Change-Id: Icb3ee98fb4c399b871ccf11e9920af7caf51be11 Reviewed-on: https://pdfium-review.googlesource.com/13610 Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: Chris Palmer <palmer@chromium.org>
2017-09-08Fix an off by 1 error in TIFF_PredictLine().chromium/3212Lei Zhang
BUG=chromium:762106 Change-Id: I714d69320cc4fb81d535f811c18d4ef91fec44d3 Reviewed-on: https://pdfium-review.googlesource.com/13212 Commit-Queue: Lei Zhang <thestig@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org>
2017-09-08Move decompressing of JPX out of Init and into DecodeRyan Harrison
In the existing implementation of the JPX decoder, Init extracts the header from the image and then immediately decompresses it. This is problematic if it is a very large image that we won't be able to allocate a bitmap for. The code has been changed to instead delay decompression until the Decode method, since things like dest Bitmap generation can be performed using just the header information. There is also a bit of renaming/casting cleanup, because I was having a hard time parsing what was a local vs member variable. BUG=chromium:761005 Change-Id: I55a55c0be2f88a5352a6ca056c2a816137d7c749 Reviewed-on: https://pdfium-review.googlesource.com/13550 Reviewed-by: Henrique Nakashima <hnakashima@chromium.org> Commit-Queue: Ryan Harrison <rharrison@chromium.org>
2017-08-31Remove fx_basic.hDan Sinclair
This CL removes the fx_basic.h header and fixes up includes as needed. Change-Id: I49af32a8327bdbcda40c50a61ffbd75d06609040 Reviewed-on: https://pdfium-review.googlesource.com/12670 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org>
2017-08-31Use vector instead of pointer in CJBig2_SegmentNicolas Pena
Change-Id: Ic54e0491d9b33a06b5f85963f8127bfa4263f4d6 Reviewed-on: https://pdfium-review.googlesource.com/12450 Reviewed-by: dsinclair <dsinclair@chromium.org> Commit-Queue: Nicolás Peña <npm@chromium.org>
2017-08-31Split IFX_Pause out of fx_basicDan Sinclair
This CL moves IFX_Pause out to its own class from fx_basic and updates includes as needed. Change-Id: Iebdd183d8c85aa17570f190f1a7d1602c0af3c8b Reviewed-on: https://pdfium-review.googlesource.com/12491 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org>
2017-08-30Split CFX_FixedBufGrow out of fx_basicchromium/3201Dan Sinclair
This CL moves CFX_FixedBufGrow to its own files and updates includes as needed. Change-Id: Ia0cb70569b30acdb3ba9f23d8937ab8f9c17d6e6 Reviewed-on: https://pdfium-review.googlesource.com/12490 Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2017-08-30Move CFX_BinaryBuf out of fx_basicDan Sinclair
This CL splits the CFX_BinaryBuf out of fx_basic into its own files. The various includes have been updated. Change-Id: I0fa616eeb4df6dd229c02dc3a0597b3dced59425 Reviewed-on: https://pdfium-review.googlesource.com/12412 Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2017-08-30Fix undefined shift in CJBig2_Context::decodeSymbolIDHuffmanTableNicolas Pena
Bug: chromium:755532 Change-Id: Ib04426fab52d0ca1d2544a21fd2ce4faaa57123f Reviewed-on: https://pdfium-review.googlesource.com/12430 Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: Nicolás Peña <npm@chromium.org>
2017-08-28Add helper methods in CJBig2_GRRDProc.Lei Zhang
Refactor identical code used in decode_Template0_unopt() into their own methods. Change-Id: I37348a280ecc66d91fdcd3c9aabe49d2a8065417 Reviewed-on: https://pdfium-review.googlesource.com/11950 Reviewed-by: Ryan Harrison <rharrison@chromium.org> Commit-Queue: Lei Zhang <thestig@chromium.org>
2017-08-28Skip decoding of excessively large JBIG2 images.Lei Zhang
BUG=chromium:749610. Change-Id: I4de7855aec552e6c143e7a8be6b90e44945a0fcb Reviewed-on: https://pdfium-review.googlesource.com/11930 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: Henrique Nakashima <hnakashima@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
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