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2018-10-03Make CCodec_ProgressiveDecoder::ReadMoreData() slightly sanerchromium/3570Tom Sepez
- Fix buffer leak if TryRealloc fails. - Make m_SrcSize always represent the usable bytes in the buffer, even when read the last partial block from the file. - Remove redundant comparisons and use std::min(). - Better naming. Change-Id: Ie7dd79bac21b2f2422f299563a2dd28ed358e3e2 Reviewed-on: https://pdfium-review.googlesource.com/42130 Commit-Queue: Tom Sepez <tsepez@chromium.org> Reviewed-by: Lei Zhang <thestig@chromium.org>
2018-10-02Consolidate ReadMoreData() calls.Tom Sepez
Extract some dividends from having landed the previous CL. Change-Id: I9ade77c801b51762cab801716b9fd2bc4c634036 Reviewed-on: https://pdfium-review.googlesource.com/c/41990 Commit-Queue: Tom Sepez <tsepez@chromium.org> Reviewed-by: Lei Zhang <thestig@chromium.org>
2018-09-25Revert "Remove unreachable code in CPDF_DIBBase."Lei Zhang
This reverts commit 214982c4d02a720c3b1b3de121cddc62189b8848. Reason for revert: Turns out it is reachable. Original change's description: > Remove unreachable code in CPDF_DIBBase. > > The colorspace is always available when creating image decoders that use > colorspaces. > > Change-Id: I20ac75edcd614ccc1e83de262c128776e9d03eed > Reviewed-on: https://pdfium-review.googlesource.com/42872 > Commit-Queue: Ryan Harrison <rharrison@chromium.org> > Reviewed-by: Ryan Harrison <rharrison@chromium.org> TBR=thestig@chromium.org,rharrison@chromium.org BUG=chromium:888743 # Not skipping CQ checks because original CL landed > 1 day ago. Change-Id: I45903543f0e4bf2785660fb8c1e45c34febb6ecf Reviewed-on: https://pdfium-review.googlesource.com/43050 Reviewed-by: Lei Zhang <thestig@chromium.org> Commit-Queue: Lei Zhang <thestig@chromium.org>
2018-09-25Add FxAlignToBoundary<>() template helper function.Tom Sepez
Because I nearly botched this trivial calculation in the previous CL. Change-Id: I7438f9d3476d93b7899c2d7d761234769f53f9e3 Reviewed-on: https://pdfium-review.googlesource.com/43010 Commit-Queue: Lei Zhang <thestig@chromium.org> Reviewed-by: Lei Zhang <thestig@chromium.org>
2018-09-25Introduce CodecModuleIface for progressive decoder modules.Tom Sepez
Another step before trying to fix the memory issue. Forces common APIs on the bunch of decoders, though some methods are unused. Requires adding some arguments/return values to get to a common API which are not used in all cases (yet?). Required converting some args to spans. Required proxying a GetJumpMark() call through the public module API to the private context. Bug: pdfium:1082 Change-Id: I0c0b7415141ff2a6f4f44777ca3d05521f08130d Reviewed-on: https://pdfium-review.googlesource.com/41950 Commit-Queue: Lei Zhang <thestig@chromium.org> Reviewed-by: Lei Zhang <thestig@chromium.org>
2018-09-21Cleanup in CCodec_FaxModuleNicolas Pena
This CL moves FaxG4Decode to the class where it's implemented. It should remain there because it calls FaxG4GetRow, declared and used in the cpp file. Do some ++ cleanup while at it. This CL also makes CCodec_FaxModule own some methods that were namespaced since doing so allows removing a bunch of parameters. Change-Id: I24787f5668c7273b9bdb4009c3d0b29590c5552f Reviewed-on: https://pdfium-review.googlesource.com/42950 Commit-Queue: Nicolás Peña Moreno <npm@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org>
2018-09-21Remove unreachable code in CPDF_DIBBase.Lei Zhang
The colorspace is always available when creating image decoders that use colorspaces. Change-Id: I20ac75edcd614ccc1e83de262c128776e9d03eed Reviewed-on: https://pdfium-review.googlesource.com/42872 Commit-Queue: Ryan Harrison <rharrison@chromium.org> Reviewed-by: Ryan Harrison <rharrison@chromium.org>
2018-09-20Remove extraneous 'extern "C"' entries.Lei Zhang
Also remove dead code found along the way, and fix lint errors. BUG=pdfium:410 Change-Id: I4cd0ede516483209cf49a6686d909953ab196106 Reviewed-on: https://pdfium-review.googlesource.com/42771 Reviewed-by: Tom Sepez <tsepez@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org> Commit-Queue: Lei Zhang <thestig@chromium.org>
2018-09-20Remove many unneeded STL #includes from headers.Lei Zhang
Change-Id: I7010cedee8d17d05b2c37a94d767e6f3a9c48f7d Reviewed-on: https://pdfium-review.googlesource.com/42790 Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: Lei Zhang <thestig@chromium.org>
2018-09-17Fix final/protected conflicts.Tom Sepez
Classes marked |final| should not have |protected| members. In turn, "private field m_dwEncryptObjNum is not used" warning is produced. Change-Id: I51a96aca5a5f499381a6764d892962f7f2dc0327 Reviewed-on: https://pdfium-review.googlesource.com/42611 Reviewed-by: Lei Zhang <thestig@chromium.org> Commit-Queue: Tom Sepez <tsepez@chromium.org>
2018-09-11Make flate decode functions' buffer out parameter unique_ptrs.Lei Zhang
Change-Id: Idb14846e87a8287dd911b0a2f7a32146e86c2af7 Reviewed-on: https://pdfium-review.googlesource.com/41853 Commit-Queue: Lei Zhang <thestig@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org>
2018-09-11Make RunLengthDecode()'s buffer out parameter a unique_ptr.Lei Zhang
Change-Id: I1dc99831a564e88035c317455411f1eba9aa41c4 Reviewed-on: https://pdfium-review.googlesource.com/41852 Commit-Queue: Lei Zhang <thestig@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org>
2018-09-04Consolidate some common code in ccoded_progressivedecoder.Tom Sepez
Small consolidation before trying to fix a memory issue. Unfortunately, this involves converting a switch -> ifs, since we no longer dispatch exactly the same. Change-Id: I7ef61db98cdfbbc983adf21e7b3fe4ef1d2ce869 Reviewed-on: https://pdfium-review.googlesource.com/41830 Reviewed-by: Lei Zhang <thestig@chromium.org> Commit-Queue: Tom Sepez <tsepez@chromium.org>
2018-09-04Fix some more span/memcpy interactions.Tom Sepez
Use the preferred idiom of creating a subspan, which makes the proper checks prior to the copy. Change-Id: Ia7f25b5760dea5707df66cf421195b23a1ce0ad0 Reviewed-on: https://pdfium-review.googlesource.com/41911 Commit-Queue: Tom Sepez <tsepez@chromium.org> Reviewed-by: Lei Zhang <thestig@chromium.org>
2018-08-31Remove avail_buf out argument from GetAvailInput() methods.chromium/3542chromium/3541chromium/3540chromium/3539Tom Sepez
It's always passed as nullptr. It's a good thing, too, since it looks like some of the implementations are returning a wrong pointer. Add some missing |const|s. Change-Id: I768048fdfe4cdd1dc838fee26fec18e024e39920 Reviewed-on: https://pdfium-review.googlesource.com/41810 Reviewed-by: Lei Zhang <thestig@chromium.org> Commit-Queue: Tom Sepez <tsepez@chromium.org>
2018-08-30Use pdfium::span<> arg in A85 and RLE encoder methodsTom Sepez
Change-Id: Iff900bc3e1cd9c9dd6b023230c1feba78759581c Reviewed-on: https://pdfium-review.googlesource.com/41710 Commit-Queue: Tom Sepez <tsepez@chromium.org> Reviewed-by: Lei Zhang <thestig@chromium.org>
2018-08-30Fix lifetime issue in CCodec_ProgressiveDecoder.Tom Sepez
The associated bug is caused by failure to clean up context before returing at line 740 or so. But cleanups are fragile, so instead do not move context out of a local until success. This in turn means passing the local to one helper rather that using the stored value and confirming this is the only helper method invoked during the time in which the context is not yet stored. Bug: 879025 Change-Id: I1acb438edc28f7f4dd8acccc2461fe3a5ea7f5c8 Reviewed-on: https://pdfium-review.googlesource.com/41670 Reviewed-by: Lei Zhang <thestig@chromium.org> Commit-Queue: Tom Sepez <tsepez@chromium.org>
2018-08-29Use pdfium::span<> in fpdf_parser_decode.h helper functions.Tom Sepez
Change-Id: Ib0a2bd21fe4304163cf9c080e07475e7c033c299 Reviewed-on: https://pdfium-review.googlesource.com/41570 Commit-Queue: Tom Sepez <tsepez@chromium.org> Reviewed-by: Lei Zhang <thestig@chromium.org>
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>
2018-08-16Remove 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>
2018-08-10Add 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>
2018-07-25Remove 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>
2018-06-29Use 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>
2018-06-28Use 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>
2018-06-13Remove CFX_FixedBufGrow from fx_codec_icc.cppNicolas Pena
Bug: pdfium:177 Change-Id: Ib4de4f258ebd98a53b309c30b7e4aa28f0c581eb Reviewed-on: https://pdfium-review.googlesource.com/35112 Commit-Queue: Nicolás Peña Moreno <npm@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2018-06-05Further improve CCodec_FaxDecoder performance in debug builds.Lei Zhang
BUG=chromium:845117 Change-Id: Id1c97bc40ff776f52011a8ab2d6e5166cd7c64c8 Reviewed-on: https://pdfium-review.googlesource.com/33650 Reviewed-by: Henrique Nakashima <hnakashima@chromium.org> Commit-Queue: Lei Zhang <thestig@chromium.org>
2018-05-28Revert 'Remove almost all usages of CFX_FixedBufGrow with std::vector'chromium/3444Nicolas Pena
This is a manual revert of the CL at: https://pdfium-review.googlesource.com/c/pdfium/+/32159 The only file manually changed was cpdf_renderstatus.cpp Reason for revert: the bug below shows that sometimes the vector size used is larger than the parameter given to CFX_FixedBufGrow. Thus, we will revert, then add vectors using std::max unless it's clear from the code that the code will never access indices outside. Bug: chromium:847247 Change-Id: Iee54af023c8564824418a7d34a6385b0bc418ff0 Reviewed-on: https://pdfium-review.googlesource.com/33050 Reviewed-by: dsinclair <dsinclair@chromium.org> Commit-Queue: Nicolás Peña Moreno <npm@chromium.org>
2018-05-25Replace some #ifdef PDF_ENABLE_XFA with runtime checks.Tom Sepez
Abstract GetUserPermissions() differences via new virtual method. Abstract GetPageCount() differences via existing virtual method. Remove unused ReadHeader() form for non-xfa. Remove unused FindSubstFontByUnicode() for xfa. Remove unused FXFONT_EXACTMATCH Change-Id: I0a3de01a9841db86fcbc96991d3fa2682393b9ad Reviewed-on: https://pdfium-review.googlesource.com/32831 Commit-Queue: Tom Sepez <tsepez@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org> Reviewed-by: Lei Zhang <thestig@chromium.org>
2018-05-21Avoid indexing into std::vector inside a tight loop.chromium/3437Lei Zhang
In CCodec_FaxDecoder::v_GetNextLine(), a fixed size vector often needs to be inverted. Doing so without checking bounds on every access makes a big difference in non-optimized builds. BUG=chromium:843899 Change-Id: Iecc0a3da22631a289745245563dab7a7c3c458d0 Reviewed-on: https://pdfium-review.googlesource.com/32744 Reviewed-by: Henrique Nakashima <hnakashima@chromium.org> Commit-Queue: Lei Zhang <thestig@chromium.org>
2018-05-17Update third_party/base/compiler_specific.h.Lei Zhang
Import Chromium's base/compiler_specific.h from r537069. Now that FALLTHROUGH is available via compiler_specific.h, remove FX_FALLTHROUGH. Change-Id: I8b9631a4f007673e10e0c26951dfd61e9dcada30 Reviewed-on: https://pdfium-review.googlesource.com/32639 Reviewed-by: Nico Weber <thakis@chromium.org> Commit-Queue: Lei Zhang <thestig@chromium.org>
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