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2018-09-12Optimize CPDF_CMapParserRyan Harrison
In this parser, a vector of CodeRange values are built up during operations that need to be sync'd with the CPDF_CMap that is being initialized. In the existing implementation, the vector being built as a member var for the parser, and copying the values over to the cmap whenever there is a change. When profiling, this copy is where the code spends most of its time. The code has been rewritten to have the parser reference/modify the instance of the vector in the cmap instead of having its own copy. This removes all of the copies and significantly speeds things up. BUG=chromium:881678 Change-Id: Ib8e75962507ca3d3b1ed066fd1faa4fbb7141122 Reviewed-on: https://pdfium-review.googlesource.com/42350 Commit-Queue: Ryan Harrison <rharrison@chromium.org> Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
2018-09-12Set correct stream index when parsing is done in several steps.Henrique Nakashima
When parsing happens in several steps (in pages with > 100 page objects), the position is reset to 0 and the start pointer is advanced. This breaks the calculation of which stream an object belongs to. Passing in the base pointer separately from the start offset allows the correct position to be calculated and the correct stream to be identified. Change-Id: Ic0d5f59f437609158aa97b3c8a18dbd48cd3b0d4 Reviewed-on: https://pdfium-review.googlesource.com/42270 Commit-Queue: Henrique Nakashima <hnakashima@chromium.org> Reviewed-by: Lei Zhang <thestig@chromium.org>
2018-09-11Do not copy data in DecodeAllScanlines().Lei Zhang
The copy will never be read. Change-Id: I129859ed7569e054e66f00314f8ecf20e2c67715 Reviewed-on: https://pdfium-review.googlesource.com/41854 Commit-Queue: Lei Zhang <thestig@chromium.org> Reviewed-by: 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>
2018-09-11Make HexDecode()'s buffer out parameter a unique_ptr.Lei Zhang
Do the same for A85Decode(). Change-Id: Ic6a0e5e8a63defa104e35e97eb9ce4223aac23a7 Reviewed-on: https://pdfium-review.googlesource.com/41851 Commit-Queue: Lei Zhang <thestig@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org>
2018-09-06Fix integer overflow in LoadCryptInfo.Henrique Nakashima
Bug: 847283 Change-Id: I7951103a5a425407b5375460a5556e8765430740 Reviewed-on: https://pdfium-review.googlesource.com/42090 Reviewed-by: Ryan Harrison <rharrison@chromium.org> Commit-Queue: Henrique Nakashima <hnakashima@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>
2018-09-04Avoid CHECK in fpdf_parser_decode.cpp (memcpy empty span)Tom Sepez
Given a span of size N, memcpy(dest, &span[N], 0) ought to be a no-op, but since we compute span[N] before checking for zero length, we hit an assert. The correct idiom should be to create a sub-span, which allows specifying N, but only when the size is 0. Bug: 879910 Change-Id: Ic6f368109a5c2f1e13a5f638c6a233769e2ad41b Reviewed-on: https://pdfium-review.googlesource.com/41930 Commit-Queue: Tom Sepez <tsepez@chromium.org> Reviewed-by: Lei Zhang <thestig@chromium.org>
2018-09-04Remove unneeded fpdf_parser_decode.h #includes.Lei Zhang
Change-Id: I2c52828c25b4941669503328517c12a0a1dd770e Reviewed-on: https://pdfium-review.googlesource.com/41850 Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: Lei Zhang <thestig@chromium.org>
2018-08-31Simplify radial shading.Henrique Nakashima
Change-Id: I3b6a386cf376a418ad64514313c791437ea54cf6 Reviewed-on: https://pdfium-review.googlesource.com/41610 Commit-Queue: Henrique Nakashima <hnakashima@chromium.org> Reviewed-by: Lei Zhang <thestig@chromium.org>
2018-08-31Fix radial shading when start circle is a point in the center of end circle.Henrique Nakashima
The bug also requires end circle to be tiny (radius of < 0.01). Bug: pdfium:1140 Change-Id: I2b355f44f0383334b8988fe41f82cb3f587e9909 Reviewed-on: https://pdfium-review.googlesource.com/41672 Commit-Queue: Henrique Nakashima <hnakashima@chromium.org> Reviewed-by: Lei Zhang <thestig@chromium.org> Reviewed-by: Ryan Harrison <rharrison@chromium.org>
2018-08-29Use pdfium::span<>/UnownedPtr in CFX_Font.Tom Sepez
Move some platform-specific ifdefs so the come last in each section as it is easier to read, perhaps. Change-Id: Ic1c2652c46ecebc63b66213735ed6d94737a7f32 Reviewed-on: https://pdfium-review.googlesource.com/41630 Commit-Queue: Tom Sepez <tsepez@chromium.org> Reviewed-by: Lei Zhang <thestig@chromium.org>
2018-08-29Fix radial shading when center of start point is on the border of an end circle.Henrique Nakashima
Radial shading is done between two circles with their own centers and radii. When one has a radius of 0 and is located on or very close to the border of the other circle, a should be 0, but is not due to rounding errors unless the circles are aligned in x or y. Bug: pdfium:1140 Change-Id: Ief2efa91f3f16f7bed439aa471b258fa4d680acf Reviewed-on: https://pdfium-review.googlesource.com/41590 Reviewed-by: Ryan Harrison <rharrison@chromium.org> Commit-Queue: Henrique Nakashima <hnakashima@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>
2018-08-29Remove FPDFAPI_ prefix from internal cid/encoder functionsTom Sepez
These look too much like public/ FPDF functions otherwise and yet they are not exposed anywhere beyond core/fpdfapi. Disambiguate one method vs. top-level function usage as a result. Bug: pdfium:1141 Change-Id: I9cfdfced90386bb9ef6b2b86f568f2e6f8ee6a5a Reviewed-on: https://pdfium-review.googlesource.com/41530 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>
2018-08-28Use 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>
2018-08-27Use 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>
2018-08-23Use pdfium::span<> in CPDF_Stream::SetData().Tom Sepez
Conversion to span makes this more elegant in a number of places, owing to std::vector directly converting to span, and the bytestring's ToRawSpan(). Disambiguate single-argument forms to allow passing {} as an argument. Change-Id: Ibd5eaadca8d8cbbd589338f375c7ee8439fd3eb2 Reviewed-on: https://pdfium-review.googlesource.com/41272 Reviewed-by: Lei Zhang <thestig@chromium.org> Commit-Queue: Tom Sepez <tsepez@chromium.org>
2018-08-23Pass unique_ptr<> to CFX_MemoryStream constructorTom Sepez
Proves we own the memory that the class will eventually free. Change-Id: Ie9523da8db738e7478a1c73e3e1a6b24aed38442 Reviewed-on: https://pdfium-review.googlesource.com/41290 Reviewed-by: Lei Zhang <thestig@chromium.org> Commit-Queue: Tom Sepez <tsepez@chromium.org>
2018-08-23Fix GCC build with V8 disabled.Lei Zhang
- Remove set, but otherwise unused variables. - Mark some pdfium_test code as V8-enabled only. - Do not build one unit test with GCC. Change-Id: I3f04273a7731086e08386478a62769bf06f6d8a4 Reviewed-on: https://pdfium-review.googlesource.com/41271 Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: Lei Zhang <thestig@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>
2018-08-23Remove bool bPromptCJK argument (several places)Tom Sepez
It gets computed, and passed around, but in the end no decisions are made because of it. Change-Id: If67f6f0cd0c37e52993832be1fb83498fd851914 Reviewed-on: https://pdfium-review.googlesource.com/41190 Reviewed-by: Ryan Harrison <rharrison@chromium.org> Commit-Queue: Tom Sepez <tsepez@chromium.org>
2018-08-23Fold CPDF_Document::LoadDocInternal() into caller.Tom Sepez
It is only called in one place. It also has a superfluous test and return as it is currently written introduced in https://pdfium-review.googlesource.com/c/pdfium/+/35490 Change-Id: Iba1aaac6e93c261f71729f39e51741f19c5dbb57 Reviewed-on: https://pdfium-review.googlesource.com/41071 Reviewed-by: Henrique Nakashima <hnakashima@chromium.org> Commit-Queue: Tom Sepez <tsepez@chromium.org>
2018-08-22Properly handle language markers in decoded textRyan Harrison
In text like document title 0x001B is used as a marker for the beginning/end of a language metadata section. Currently PDFium does nothing with this data, but when returning the 'decoded' text it needs to be stripped out. The existing code assumed that the two bytes following a marker would be the data to be removed and did nothing to track if it was in/out of one of these regions. This led to a situation where it would always strip the two bytes following the region, since it assumed the end marker was the beginning of a new region. This CL corrects the detection and handling of these regions, and adds a regression test for the reported bug. BUG=pdfium:182 Change-Id: I92ddba5666274a8986fed03f502a0331f150f7ac Reviewed-on: https://pdfium-review.googlesource.com/41070 Reviewed-by: Henrique Nakashima <hnakashima@chromium.org> Commit-Queue: Ryan Harrison <rharrison@chromium.org>
2018-08-22Fix integer overflow in CPDF_CIDFont::GetCharBBoxNicolas Pena
Bug: chromium:875924 Change-Id: I85c86d3f90ee62b5593b0b20e44283c5056702ff Reviewed-on: https://pdfium-review.googlesource.com/40730 Reviewed-by: Lei Zhang <thestig@chromium.org> Commit-Queue: Nicolás Peña Moreno <npm@chromium.org>
2018-08-20Use UnownedPtr<> in CPDF_ObjectWalker.Tom Sepez
Change-Id: I99eed369f4d44f92607a0a58ba24e8b62ee348f7 Reviewed-on: https://pdfium-review.googlesource.com/40671 Reviewed-by: Lei Zhang <thestig@chromium.org> Commit-Queue: Tom Sepez <tsepez@chromium.org>
2018-08-17Use more UnownedPtr<> in cpdf_renderstatus.h.chromium/3526Tom Sepez
This immediately flags a case where a pointer from a heap object to a caller's stack object is persisted past the caller's lifetime. Fix it the simplest way via AutoRestorer<> so we'll get a nice safe segv should it be used. Change-Id: I554304b235e73c279fa0cd79c9e3ee0138be45f9 Reviewed-on: https://pdfium-review.googlesource.com/40592 Reviewed-by: Lei Zhang <thestig@chromium.org> Commit-Queue: Tom Sepez <tsepez@chromium.org>
2018-08-17Add FPDFText_GetFontInfoNicolas Pena
Bug: pdfium:929 Change-Id: I9da03a1e317cff69ec4c76b69289cfa753b6bb77 Reviewed-on: https://pdfium-review.googlesource.com/40531 Reviewed-by: Lei Zhang <thestig@chromium.org> Reviewed-by: Henrique Nakashima <hnakashima@chromium.org> Commit-Queue: Nicolás Peña Moreno <npm@chromium.org>
2018-08-16Remove optional bool bType from GetFillArgb()Tom Sepez
Two variants make the intention much clearer. Change-Id: Ied0d8e6fa8c5524c19cafe8036d7c1b470fda86d Reviewed-on: https://pdfium-review.googlesource.com/40352 Commit-Queue: Tom Sepez <tsepez@chromium.org> Reviewed-by: Lei Zhang <thestig@chromium.org>
2018-08-16Remove more optional args in core/Tom Sepez
Change-Id: I6a2bd03e00ad4e3d57f6931c0c6cf4ae0c760afb Reviewed-on: https://pdfium-review.googlesource.com/40290 Reviewed-by: Lei Zhang <thestig@chromium.org> Commit-Queue: Tom Sepez <tsepez@chromium.org>
2018-08-15Make CPDF_RenderStatus::Initialize() saner.Tom Sepez
Move mandatory arguments to ctor. Replace long list of positional parameters with setter methods. Make Initialize() return void since it can't fail. Change-Id: I490118923855158891cf45eecd5de1e922a3a1fe Reviewed-on: https://pdfium-review.googlesource.com/40170 Reviewed-by: Lei Zhang <thestig@chromium.org> Commit-Queue: Tom Sepez <tsepez@chromium.org>
2018-08-14Remove default args from CPDF_DIBSource::StartLoadDIBSource().Tom Sepez
Change-Id: I13f53f581487f643acf160f53d02e9af7d54cfd1 Reviewed-on: https://pdfium-review.googlesource.com/40151 Reviewed-by: Lei Zhang <thestig@chromium.org> Commit-Queue: Tom Sepez <tsepez@chromium.org>
2018-08-14Remove unreachable vertical text code in CPDF_Document.Lei Zhang
Change-Id: I64b34da202a0f1c30a38cba2f24490aad4063828 Reviewed-on: https://pdfium-review.googlesource.com/40150 Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: Lei Zhang <thestig@chromium.org>
2018-08-14Remove unused form/args of AddWindowsFont()Tom Sepez
Change-Id: I38b508b5518568ff134b70e0e494e5267571c1ca Reviewed-on: https://pdfium-review.googlesource.com/40110 Reviewed-by: Lei Zhang <thestig@chromium.org> Commit-Queue: Tom Sepez <tsepez@chromium.org>
2018-08-14Add CPDF_Type1Font::IsBase14Font() to replace GetBase14Font().Lei Zhang
IsBase14Font() is what its only caller really needs. Also use it in Load() which does the same check, and restructure Load() to have an early return. Change-Id: I1d051d10b80aa82bcf590c79169ffe29607b3c13 Reviewed-on: https://pdfium-review.googlesource.com/39970 Commit-Queue: Lei Zhang <thestig@chromium.org> Reviewed-by: Nicolás Peña Moreno <npm@chromium.org>
2018-08-14Remove CFX_BufferSeekableReadStream.Lei Zhang
Replace it with CFX_ReadOnlyMemoryStream, which does the same thing. Take some checks from CFX_BufferSeekableReadStream and add them CFX_ReadOnlyMemoryStream. Change-Id: I25554c3aec3ec96967f8df16ca68a64dba121b6f Reviewed-on: https://pdfium-review.googlesource.com/40070 Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: Lei Zhang <thestig@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>
2018-08-14Remove |bTakeOver| parameter from CFX_MemoryStream ctor.Lei Zhang
It is always true now. BUG=pdfium:263 Change-Id: I74fd0091f5815701718e8cd5acc6e7a0de772a85 Reviewed-on: https://pdfium-review.googlesource.com/40031 Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: Lei Zhang <thestig@chromium.org>
2018-08-13Make CFX_ReadOnlyMemoryStream take a span.Lei Zhang
Change-Id: Id097320ab2d9b5d1579582e5797e29c701499501 Reviewed-on: https://pdfium-review.googlesource.com/39991 Commit-Queue: Lei Zhang <thestig@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org>
2018-08-13Change CFDF_Document::ParseMemory() to use pdfium::span.Lei Zhang
Change-Id: I1e9b02f0cb2628d41bc1c6bdcfcfa09c36faf97e Reviewed-on: https://pdfium-review.googlesource.com/39990 Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: Lei Zhang <thestig@chromium.org>
2018-08-13Use CFX_ReadOnlyMemoryStream in more places.Lei Zhang
More const pointers, less const_casts. BUG=pdfium:263 Change-Id: I47fc6d8f2f837390e40ad22d8b67946065294eaa Reviewed-on: https://pdfium-review.googlesource.com/39879 Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: Lei Zhang <thestig@chromium.org>
2018-08-13Mark CPDF_Font::GlyphFromCharCodeExt() and friends Mac only.Lei Zhang
Change-Id: I4906351a6e21fb8480670a6daf15bd7cb9e441c5 Reviewed-on: https://pdfium-review.googlesource.com/39911 Commit-Queue: Lei Zhang <thestig@chromium.org> Reviewed-by: Nicolás Peña Moreno <npm@chromium.org>
2018-08-11Cleanup CFX_CTTGSUBTable.chromium/3521chromium/3520Lei Zhang
Do all the parsing inside the constructor. Make GetVerticalGlyph() and related getters const methods. Change-Id: I21118cf98048cb6bbfc0999604d2434d4acafef6 Reviewed-on: https://pdfium-review.googlesource.com/39496 Commit-Queue: Lei Zhang <thestig@chromium.org> Reviewed-by: Nicolás Peña Moreno <npm@chromium.org>
2018-08-11Initialize CPDF_CIDFont members.Lei Zhang
Given POD members default values, rather than hoping Load() will. Also reorder members to pack better. Change-Id: I493db11eb3d115e49f4e914e53a1eb55fa2046f0 Reviewed-on: https://pdfium-review.googlesource.com/39495 Commit-Queue: Lei Zhang <thestig@chromium.org> Reviewed-by: Nicolás Peña Moreno <npm@chromium.org>
2018-08-11Simplify CPDF_SimpleFont::LoadPDFEncoding().Lei Zhang
Remove parameters that always refer to the same member variables. Also mark the input object as const since it is only read from. Change-Id: I136ece1ce5b0c00b02d1a76e1540ff26e6f01858 Reviewed-on: https://pdfium-review.googlesource.com/39494 Commit-Queue: Lei Zhang <thestig@chromium.org> Reviewed-by: Nicolás Peña Moreno <npm@chromium.org>
2018-08-10Kill some optional parameters that are always supplied.Tom Sepez
No need to even bring any .cpp files in line with these headers. Change-Id: I934169d77ae09adc11f02e5ea92b1f8b078c9477 Reviewed-on: https://pdfium-review.googlesource.com/39876 Commit-Queue: Tom Sepez <tsepez@chromium.org> Reviewed-by: Lei Zhang <thestig@chromium.org>
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