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2017-08-02Rewrite how string Insert() methods handle out of bound indicesRyan Harrison
The existing behaviour was to clamp the provided index to the valid bounds. This would lead to programming errors being hidden, since inserting would still do something even if the index calculation was wrong. The behaviour of these methods has been changed to instead early return when this occurs, returning the old length value. The caller can check if the call to Insert actually did anything by comparing the returned value to the length before calling insert. All of the existing calls to Insert have been tested by running all of the tests with asserts in the Insert method to check the index is in bounds. Additionally the call sites have been manually inspected. The majority of them are of the form Insert(0, foo) and the rest tend to be in a loop advancing from 0 to length. Convenience methods InsertAtFront/InsertAtBack have been added to handle calling Insert when the intent is for the character to be added to the beginning or end of the string. Existing call sites to Insert that do this have been converted. This work was originally being performed to check if there would be any issues in these methods with making FX_STRSIZE unsigned. BUG=pdfium:828 Change-Id: I60cee5ad45338aa8ed46569de7bcc78a76db18f7 Reviewed-on: https://pdfium-review.googlesource.com/9870 Commit-Queue: Ryan Harrison <rharrison@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org>
2017-08-02Pass a CPDF_ImageObject* into CPDF_ImageRenderer::Start().Lei Zhang
Instead of passing in a CPDF_PageObject* and then converting it to an image, which is always what it is. Change-Id: I146a476147f4b344417982b5ace002b9bd7b3d80 Reviewed-on: https://pdfium-review.googlesource.com/9810 Reviewed-by: Henrique Nakashima <hnakashima@chromium.org> Commit-Queue: Lei Zhang <thestig@chromium.org>
2017-08-02Remove unused CPDF_FlateEncoder ctor.Lei Zhang
Callers removed in commit 4b78b18. Change-Id: I6eec6ba18712040180b12d56b59c6a8379de4379 Reviewed-on: https://pdfium-review.googlesource.com/9750 Reviewed-by: Nicolás Peña <npm@chromium.org> Commit-Queue: Lei Zhang <thestig@chromium.org>
2017-08-02Remove CFX_ByteTextBuf from cpdfsdk_interform.cpp and others.Henrique Nakashima
Bug: pdfium:731 Change-Id: I61d38ab3f2b0ac68b8479ade25bab50f3a73c27b Reviewed-on: https://pdfium-review.googlesource.com/9770 Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: Henrique Nakashima <hnakashima@chromium.org>
2017-08-01Add public access for read stream into CPDF_SyntaxParserArtem Strygin
Change-Id: I5deb6049db41387ac030a6ba5296ee6187120190 Reviewed-on: https://pdfium-review.googlesource.com/9470 Commit-Queue: Lei Zhang <thestig@chromium.org> Reviewed-by: Lei Zhang <thestig@chromium.org>
2017-08-01Improve readability in CPDF_Parser::ObjectInfo.Artem Strygin
Make CPDF_Parser::ObjectInfo::pos a union, since the data is used as an object number when the object is compressed. Change-Id: Id7c32759f7411cc80285bb7f3088b5aa6ff5bf05 Reviewed-on: https://pdfium-review.googlesource.com/9570 Reviewed-by: Lei Zhang <thestig@chromium.org> Commit-Queue: Art Snake <art-snake@yandex-team.ru>
2017-08-01Implement read Session.Artem Strygin
Helper for validate read problems locally, Change-Id: I2bfbbaab8a67c0fd0cee3dadcd0f9cad5953101c Reviewed-on: https://pdfium-review.googlesource.com/9552 Reviewed-by: Lei Zhang <thestig@chromium.org> Commit-Queue: Art Snake <art-snake@yandex-team.ru>
2017-08-01Change CPDF_Parser::GetIndirectBinary() to return a std::vector.Lei Zhang
Fixes potential leaks in CPDF_Creator::WriteOldIndirectObject(), the only caller. Change-Id: I8a20da8a555c8d28f3bcd467a193a6a81c9f91d9 Reviewed-on: https://pdfium-review.googlesource.com/9751 Reviewed-by: Art Snake <art-snake@yandex-team.ru> Commit-Queue: Lei Zhang <thestig@chromium.org>
2017-08-01Remove support for negative params to ReleaseBuffer()Ryan Harrison
This CL removes the default param value for this method, which was negative. It also adds in a method to get buffer lengths, so that the callsites can explictly passing in the length of the buffer if they were using the default value previously. BUG=pdfium:828 Change-Id: I0170771ee81970b8b601631015ab3e6e39fea8ea Reviewed-on: https://pdfium-review.googlesource.com/9790 Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: Ryan Harrison <rharrison@chromium.org>
2017-08-01Replace raw value for constant error value in string operationsRyan Harrison
Currently Find() and other methods that return a FX_STRSIZE return -1 to indicate error/failure. This means that there is a lot of magic numbers and magic checks floating around. The standard library for similar operations uses a npos constant. This CL implements FX_STRNPOS, and replaces usages of magic number checking. It also does some type cleanup along the way where it was obvious that FX_STRSIZE should be being used. Removing the magic numbers should make eventually changing FX_STRSIZE to be unsigned easier in the future. BUG=pdfium:828 Change-Id: I67e481e44cf2f75a1698afa8fbee4f375a74c490 Reviewed-on: https://pdfium-review.googlesource.com/9651 Commit-Queue: Ryan Harrison <rharrison@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org>
2017-08-01Prevent use of null pFileRead in CPDF_DataAvail.chromium/3174Artem Strygin
Change-Id: I52e668ca410a0c6b96a789ecc18c993152047ead Reviewed-on: https://pdfium-review.googlesource.com/9550 Commit-Queue: Art Snake <art-snake@yandex-team.ru> Reviewed-by: Lei Zhang <thestig@chromium.org>
2017-07-31Initialize CPDF_PathObject members on constructor.Henrique Nakashima
Bug: pdfium:839 Change-Id: I3a069bf7d8a75f32cf9bcc9e9926ad19aa006795 Reviewed-on: https://pdfium-review.googlesource.com/9650 Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: Henrique Nakashima <hnakashima@chromium.org>
2017-07-28Add CPDF_Stream::ReplaceData method.chromium/3170Artem Strygin
Change-Id: I94b2e8f6fd522b97c917037e32fb3bcbeea0cbeb Reviewed-on: https://pdfium-review.googlesource.com/8911 Commit-Queue: Lei Zhang <thestig@chromium.org> Reviewed-by: Lei Zhang <thestig@chromium.org>
2017-07-28Convert calls to Mid() to Left() or Right() if possibleRyan Harrison
The various string/byte classes support Mid(), Left(), and Right() for extracting substrings. Mid() can handle all possible cases, but Left() and Right() are useful for common cases and more explicit about what is going on. Calls like Mid(offset, length - offset) can be converted to Right(length - offset). Calls like Mid(0, length) can be converted to Left(length). If the substring being extracted does not extend all the way to one of the edges of the string, then Mid() still needs to be used. BUG=pdfium:828 Change-Id: I2ec46ad3d71aac0f7b513e103c69cbe8c854cf62 Reviewed-on: https://pdfium-review.googlesource.com/9510 Commit-Queue: Ryan Harrison <rharrison@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org>
2017-07-28Return removed value from dictionary.Artem Strygin
Change-Id: I218179565cd991b71fd9c909b94f967bbf80c74d Reviewed-on: https://pdfium-review.googlesource.com/8912 Commit-Queue: Lei Zhang <thestig@chromium.org> Reviewed-by: Lei Zhang <thestig@chromium.org>
2017-07-28Implement read validator.Artem Strygin
The wrapper for IFX_SeekableReadStream. Which allow us to check data availability on read request and request downloading of non available data on fly. Change-Id: I27c66cd58f43f8432f73104cc3f4c980515a9b56 Reviewed-on: https://pdfium-review.googlesource.com/9050 Commit-Queue: Art Snake <art-snake@yandex-team.ru> Reviewed-by: (OOO Jul 28 - Aug 8) dsinclair <dsinclair@chromium.org>
2017-07-27Remove single param Mid() method from string classesRyan Harrison
This support is being removed from CFX_ByteString, CFX_ByteStringC, CFX_WideString, and CFX_WideStringC. This standardizes all of these classes to only have one Mid method that takes in 2 params, offset and count. Count now must be positive. The old behaviour of calculating the length for the user if -1 is passed in for the count has been removed. This work is in preperation for converting these classes to not accept negative lengths anywhere and thus make the underlying size type unsigned. BUG=pdfium:828 Change-Id: I5f15e7b7b00b264231817f143e2da88ee6f69e7b Reviewed-on: https://pdfium-review.googlesource.com/9430 Reviewed-by: (OOO Jul 28 - Aug 8) dsinclair <dsinclair@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: Ryan Harrison <rharrison@chromium.org>
2017-07-26Remove recursion from CPDF_DataAvail::HaveResourceXXX.Artem Strygin
Change-Id: Iacac67bce99b4b4bcc303fb388aaf03f2f99e4f3 Reviewed-on: https://pdfium-review.googlesource.com/9070 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2017-07-26Remove useless code.Artem Strygin
Change-Id: Ibb7e33dddd79d6266961ebdf56600fc5a091dcb8 Reviewed-on: https://pdfium-review.googlesource.com/9071 Commit-Queue: Art Snake <art-snake@yandex-team.ru> Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2017-07-25flush but do not release skia driverCary Clark
Most calls to the Skia Driver combine flushing the draw cache with deleting the driver itself. Progressive drawing needs to flush the cache to keep drawing in order, but the driver must remain for the next progressive draw. R=dsinclair@chromium.org, hnakashima@chromium.org Bug: pdfium:833 Change-Id: I311f80b2dc0ef6e4df9a3a0f082ae076cb7a591f Reviewed-on: https://pdfium-review.googlesource.com/8890 Reviewed-by: dsinclair <dsinclair@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2017-07-24Deprecated FPDF_RENDER_READER in favour of FPDF_RENDER_READYDan Sinclair
The use of Ready makes more sense then Reader for the constants. Rename and deprecate the old one. Bug: pdfium:830 Change-Id: I80b970f29a21068b41993c1880d81d406c3108e0 Reviewed-on: https://pdfium-review.googlesource.com/8790 Reviewed-by: Henrique Nakashima <hnakashima@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2017-07-20Use enum for pdf object typeArtem Strygin
Replace uint8_t type to enum for ObjectType variables Change-Id: Ie33c8c9413c5082397a2c6fbf73e03f08b7d8658 Reviewed-on: https://pdfium-review.googlesource.com/8470 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2017-07-19Rename StringCs c_str() to unterminated_c_str().Tom Sepez
Since there is no guarantee of termination if the StringC was extracted from a snippet of another string. Make it more obvious that things like strlen(str.unterminated_c_str()) might be a bad idea. Change-Id: I7832248ed89ebbddf5c0bcd402aac7d40ec2adc2 Reviewed-on: https://pdfium-review.googlesource.com/8170 Commit-Queue: Tom Sepez <tsepez@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org> Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
2017-07-19Use CFX_WideString in CPDF_NameTree functions to strip BOMchromium/3162Jane Liu
PDFium doesn't strip BOMs during parsing, but we should strip BOMs when retrieving parsed strings in CPDF_NameTree to ensure consistency and appropriate function behavior. See the bug for more info. As outlined in Bug=pdfium:593, the solution is to call GetUnicodeText() instead of GetString(). I added a GetUnicodeTextAt() function in CPDF_Array, which is symmetrical to GetUnicodeTextFor() in CPDF_Dictionary. I then changed the input variable types to CPDF_NameTree functions to be CFX_WideString instead of CFX_ByteString, and modified all the calls to them. I also added a unit test for nametree, which would fail prior to this change. Nametrees with non-unicode names are already tested by embedder tests. Bug=pdfium:820 Change-Id: Id69d7343632f83d1f5180348c0eea290f478183f Reviewed-on: https://pdfium-review.googlesource.com/8091 Reviewed-by: dsinclair <dsinclair@chromium.org> Commit-Queue: Jane Liu <janeliulwq@google.com>
2017-07-19Basic APIs and tests for extracting attachmentsJane Liu
1. Added API for extracting attachment properties and data. * Expanded the embedder test to cover all the new APIs. Bug=pdfium:174 Change-Id: I09bffd412410e9aea45faca442d2b72eefafef4e Reviewed-on: https://pdfium-review.googlesource.com/7790 Reviewed-by: dsinclair <dsinclair@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2017-07-18Fix CONTINUED spellingDan Sinclair
This CL adds a FPDF_RENDER_TOBECONTINUED and marks FPDF_RENDER_TOBECOUNTINUED as deprecated. Change-Id: Ie08dbb2715d1d7959fbae17d9f23d7fcec410600 Reviewed-on: https://pdfium-review.googlesource.com/8070 Reviewed-by: Lei Zhang <thestig@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2017-07-17Let CPDF_MeshStream::ReadVertexRow return a vectorNicolas Pena
In this CL, CPDF_MeshStream::ReadVertexRow returns a vector. The vector size is not allocated in advance to prevent OOM attacks, since the size is given as an input to the PDF. Bug: chromium:735248 Change-Id: I3e2b020896f24715af5dfd9aa18768e6d64d6f76 Reviewed-on: https://pdfium-review.googlesource.com/7950 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2017-07-13Add Embeddertest for password after savingchromium/3157Nicolas Pena
This CL allows TestSaved to open password-protected and linearized documents properly. It also adds a test with one such document. BUG= pdfium:787 Change-Id: Ie0da7f290711505fb208794afdc737c36e84dd3c Reviewed-on: https://pdfium-review.googlesource.com/7034 Commit-Queue: Nicolás Peña <npm@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2017-07-13Cleanup CPDF_RenderOptions colour members.Dan Sinclair
This CL removes the fore/back colours in favour of just using the colours inline and converts the m_ColorMode to an enum. Change-Id: I1796e200d5c470680126af8625d45fc3062a1042 Reviewed-on: https://pdfium-review.googlesource.com/7751 Reviewed-by: Henrique Nakashima <hnakashima@chromium.org> Reviewed-by: Nicolás Peña <npm@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2017-07-13Remove unused CPDF_RenderOptions membersDan Sinclair
Remove members from CPDF_RenderOptions which are set but never read. Change-Id: I9598478bbc63c94af1c4693907abf66503138eb5 Reviewed-on: https://pdfium-review.googlesource.com/7750 Reviewed-by: Nicolás Peña <npm@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2017-07-12Nits in CFX_RenderDevice and CPDF_ContentParserNicolas Pena
Change-Id: I29f1c4f68356e335cd55e38014699780bf658249 Reviewed-on: https://pdfium-review.googlesource.com/7610 Reviewed-by: dsinclair <dsinclair@chromium.org> Commit-Queue: Nicolás Peña <npm@chromium.org>
2017-07-12Remove unused methods from CPDF_ColorSpaceNicolas Pena
Change-Id: Idbed9a2061d9d25ab12f8caaa09fe5ddba93cff7 Reviewed-on: https://pdfium-review.googlesource.com/7670 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2017-07-12Move CMYKtoRGB methods to fx_codec and clean them upNicolas Pena
This CL moves CMYKtoRGB methods to fx_codec. It also cleans them up a bit, including allowing them to return tuples instead of having non-const refs in their parameters. Change-Id: Ib3ec45102ec7eff623cd07a624e852d39bf335e4 Reviewed-on: https://pdfium-review.googlesource.com/7591 Commit-Queue: Nicolás Peña <npm@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2017-07-12Cleanup ICC code part 1Nicolas Pena
This CL switches void* to CLcmsCmm*, simplifies the ownership and destruction of CLcmsCmm, and reduces unnecessary function calling in fx_codec_icc.cpp. Change-Id: Ifdbf59dcdaede497d1684b161dd066726cf08ee3 Reviewed-on: https://pdfium-review.googlesource.com/7590 Reviewed-by: dsinclair <dsinclair@chromium.org> Commit-Queue: Nicolás Peña <npm@chromium.org>
2017-07-11Add Windows generic / text only printer driver support.rbpotter
BUG=chromium:734850 Change-Id: Icc0947e2e99e77a36d8963fcf0b6d3deea161d3e Reviewed-on: https://pdfium-review.googlesource.com/7194 Commit-Queue: Rebekah Potter <rbpotter@chromium.org> Reviewed-by: Lei Zhang <thestig@chromium.org>
2017-07-10Roll FreeType to c56d8851ea987023cc73981a70d261b3f6427545chromium/3156chromium/3155chromium/3154Nicolas Pena
Bug: chromium:738919 Change-Id: I2ea99a47f45e2e68650bd1fa9ad7554d8df79874 Reviewed-on: https://pdfium-review.googlesource.com/7351 Reviewed-by: Lei Zhang <thestig@chromium.org> Commit-Queue: Nicolás Peña <npm@chromium.org>
2017-07-07core: fix -Wshadow warningschromium/3153Miklos Vajna
Found with this patch: diff --git a/BUILD.gn b/BUILD.gn index 83bad1b13..444685f04 100644 --- a/BUILD.gn +++ b/BUILD.gn @@ -89,6 +89,8 @@ config("pdfium_core_config") { "/wd4324", "/wd4577", ] + } else { + cflags += [ "-Wshadow" ] } } But renaming the conflicting names is tricky, so done with clang-rename. Change-Id: Ie959b86e9e82b11b211761b0c73e439e51044de7 Reviewed-on: https://pdfium-review.googlesource.com/7410 Reviewed-by: Lei Zhang <thestig@chromium.org> Commit-Queue: Lei Zhang <thestig@chromium.org>
2017-06-30Remove pointless CFX_FloatRect construction.Lei Zhang
Also just call CFX_FloatRect() instead of explicitly writing out all zeros. Change-Id: I7574e64791d0c9ba613b14d0a613737dfbf39b12 Reviewed-on: https://pdfium-review.googlesource.com/7172 Reviewed-by: Ryan Harrison <rharrison@chromium.org> Commit-Queue: Lei Zhang <thestig@chromium.org>
2017-06-29Basic APIs and tests for extracting and setting annotation pathsJane Liu
1. Added APIs for retrieving existing annotation paths and setting annotation paths. * Added an embedder test testing all the new functions. Bug=pdfium:737 Change-Id: Ic451bcd3be488261baf2182549c4238b887b219e Reviewed-on: https://pdfium-review.googlesource.com/6676 Commit-Queue: Jane Liu <janeliulwq@google.com> Reviewed-by: Lei Zhang <thestig@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2017-06-29Move Start to constructor in CFX_Image(Renderer|Transformer)chromium/3145Nicolas Pena
The bool returned by Start was not being used and the method was always called right after the constructor, so it should be in the constructor. Change-Id: I98abf9f7c11fbe42b3aa15ec5e46731198aa23d5 Reviewed-on: https://pdfium-review.googlesource.com/7151 Commit-Queue: Nicolás Peña <npm@chromium.org> Reviewed-by: Lei Zhang <thestig@chromium.org>
2017-06-29Change SetReverse to GetInverse in CFX_MatrixNicolas Pena
CFX_Matrix::GetInverse is much clearer. Change-Id: Id10ab1723735332e1a78de853f28415ec3a4d834 Reviewed-on: https://pdfium-review.googlesource.com/7090 Reviewed-by: Lei Zhang <thestig@chromium.org> Commit-Queue: Nicolás Peña <npm@chromium.org>
2017-06-28Set default graphics before generating page contentsNicolas Pena
In this CL, the content generator sets some default graphics states before processing the page objects. In particular, a default ExtGState is now set before processing, and the last CTM is now stored right after parsing finishes: the only command to change matrix is ctm, and it concatenates, so inverting requires knowing the current value. Bug: pdfium:779 Change-Id: I35b1c07550ce91839fb0e20fbf717e3e80c9b9d6 Reviewed-on: https://pdfium-review.googlesource.com/7070 Commit-Queue: Nicolás Peña <npm@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2017-06-28Keep all trailers in CPDF_Parser in m_TrailersNicolas Pena
This CL removes m_pTrailer in favor of having them all in a vector, and having an index that points to the position of the previous m_pTrailer in the vector. Bug: pdfium:787 Change-Id: Ieebbf4849f7ea78f8f74d188e3adb3446a53482e Reviewed-on: https://pdfium-review.googlesource.com/7040 Reviewed-by: dsinclair <dsinclair@chromium.org> Commit-Queue: Nicolás Peña <npm@chromium.org>
2017-06-28Use new overloads to make usages of ostringstream more readable.Henrique Nakashima
Bug: pdfium:731 Change-Id: I92077971aec6bada061ed101cb48abe1611050d7 Reviewed-on: https://pdfium-review.googlesource.com/7042 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2017-06-27Add overload for CPDF_Stream.SetData() that takes an ostringstream.Henrique Nakashima
Bug: pdfium:731 Change-Id: Ie65bafc644cff076b0d7aadcc5d0b0e33e2c199b Reviewed-on: https://pdfium-review.googlesource.com/7035 Commit-Queue: Henrique Nakashima <hnakashima@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2017-06-27Modified CPDF_PageContentGenerator to work with both Form and PageJane Liu
CPDF_PageContentGenerator currently only works for CPDF_Page objects. However, CPDF_Form is also a CPDF_PageObjectHolder like CPDF_Page, and content streams can be generated for form objects too. This CL modifies the content generator to work with both forms and pages. The content generator will later be used on annotation objects' CPDF_Form to simplify the code for annotation AP stream generation. Change-Id: I1c50bdf0329d1f5788db23286ac72750355a10ed Reviewed-on: https://pdfium-review.googlesource.com/6837 Commit-Queue: Nicolás Peña <npm@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org> Reviewed-by: Nicolás Peña <npm@chromium.org>
2017-06-23Cleaning up fx_string_testhelpers.Henrique Nakashima
This is unused except for being a pathway for indirect deps. Change-Id: I717290235ccbc59429ad24231033382958e2a086 Reviewed-on: https://pdfium-review.googlesource.com/6910 Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: Henrique Nakashima <hnakashima@chromium.org>
2017-06-21Clamp instead of checked_cast in TT2PDFNicolas Pena
Bug: chromium:727938 Change-Id: I85fe329c9d19c1dd1303279b0a9aade2fcc3211c Reviewed-on: https://pdfium-review.googlesource.com/6814 Commit-Queue: Nicolás Peña <npm@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2017-06-20Cleanup fpdf_parser_decodeNicolas Pena
This CL fixes some nits in fpdf_parser_decode, especially avoiding non-const reference parameters. Change-Id: Ibb914850afd924bb398f886ac862f7589519ef7e Reviewed-on: https://pdfium-review.googlesource.com/6750 Commit-Queue: Nicolás Peña <npm@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2017-06-20Cleanup tiling and shading patterns in correct orderDan Sinclair
When a Shading is created we have both a ShadingPattern and a ShadingObject. The ShadingPattern is a ref-counted object that is stored in the CPDF_DocPageData. The ShadingObject, when we have a tiling pattern parent, is stored in the CPDF_Form of the tiling pattern. Currently during destruction it is possible for the ShadingPattern to get cleaned up before the ShadingObject which causes the UnownedPtr probe to fire. This CL loops over all patterns and for each Tiling pattern forces the CPDF_Form to get cleared. This then removes the ShadingObject before we remove the ShadingPattern. Bug: chromium:728992 Change-Id: Ife65607aa97f69440b03028981b5575b1e297093 Reviewed-on: https://pdfium-review.googlesource.com/6651 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: Lei Zhang <thestig@chromium.org> Reviewed-by: Nicolás Peña <npm@chromium.org>
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