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2016-11-04Traverse PDF page tree only once in CPDF_Document Try 3npm
Now, we do not start traversal from where we were at, but from the top. This makes the code less prone to bugs, as now there is no need to call methods to recursively fix things. This will save a lot of time when the trees are rather flat, as in the PDF file in the bug. It can still be slow, for instance if we have a chain of page nodes, and the last in the chain contains all of the pages (this is artificial). Try 2 at https://codereview.chromium.org/2442403002/ Also added test where Try 2 would have failed. Tested the pdf from the bug on my Mac: With this CL: load in 21 seconds Without this CL: did not load in 4 minutes, got tired of waiting BUG=chromium:638513 Review-Url: https://codereview.chromium.org/2470803003
2016-11-04Reland "Remove CPDF_Object::Release() in favor of direct delete"tsepez
This reverts commit f0d5b6c35fa343108a3ab7a25bc2cc2b3cf105b3. Review-Url: https://codereview.chromium.org/2478303002
2016-11-04Assert objnum non-zero in ReplaceIndirectObjectIfHigherGeneration()tsepez
Removes a path where it might not have taken ownership of an object, at the expense of making callers check first. This eases making the second argument an unique_ptr someday. Review-Url: https://codereview.chromium.org/2475823002
2016-11-04Revert of Remove CPDF_Object::Release() in favor of direct delete (patchset ↵dsinclair
#11 id:200001 of https://codereview.chromium.org/2384883003/ ) Reason for revert: Looks like it's blocking the roll. https://build.chromium.org/p/tryserver.chromium.linux/builders/linux_chromium_compile_dbg_ng/builds/186619 Original issue's description: > Remove CPDF_Object::Release() in favor of direct delete > > Follow-on once we prove Release always deletes in previous CL. > > Committed: https://pdfium.googlesource.com/pdfium/+/4de3d095c9d9e961f93750cf1ebd489fd515be12 TBR=thestig@chromium.org,tsepez@chromium.org # Skipping CQ checks because original CL landed less than 1 days ago. NOPRESUBMIT=true NOTREECHECKS=true NOTRY=true Review-Url: https://codereview.chromium.org/2478253002
2016-11-03Remove CPDF_Object::Release() in favor of direct deletetsepez
Follow-on once we prove Release always deletes in previous CL. Review-Url: https://codereview.chromium.org/2384883003
2016-11-03Clean up CPDF_SyntaxParser a little bitnpm
- Added a private method to read a character. - Added enum for parsing status. - Deleted unused method. Review-Url: https://codereview.chromium.org/2469833002
2016-11-03Move CPDF_Document insert methods from namespacenpm
Making the insert methods private allows us to use private members, as I will need on https://codereview.chromium.org/2470803003/ Review-Url: https://codereview.chromium.org/2472473005
2016-11-02Remove FX_BOOL from coretsepez
Review-Url: https://codereview.chromium.org/2477443002
2016-10-31Fix a memory leak in CPDF_SecurityHandler.thestig
AES256_CheckPassword() leaks memory on failure. Clean up some nits. BUG=chromium:659468 Review-Url: https://codereview.chromium.org/2463183002
2016-10-31Fix loading page using hint tables.art-snake
When linearized document have hint table, The FPDFAvail_IsPageAvail return true, but FPDF_LoadPage return nullptr, for non first pages. This happens, bacause document not use hint tables, to load page. To fix this, I force save the page's ObjNum in document. This is restoring of original fix: https://codereview.chromium.org/2437773003/ Review-Url: https://codereview.chromium.org/2444903002
2016-10-28Revert of Traverse PDF page tree only once in CPDF_Document Try 2 (patchset ↵npm
#3 id:40001 of https://codereview.chromium.org/2442403002/ ) Reason for revert: Not quite right yet. Original issue's description: > Traverse PDF page tree only once in CPDF_Document > > Try 2: main fix was recursively popping elements from the stack. Since > the Traverse method can be called on non-root nodes from GetPage(), we > have to make sure to properly update the parents. > > Try 1 at https://codereview.chromium.org/2414423002/ > > In our current implementation of CPDF_Document::GetPage, we traverse > the PDF page tree until we find the index we are looking for. This is > slow when we do calls GetPage(0), GetPage(1), ... since in this case > the page tree will be traversed n times if there are n pages. This CL > makes sure the page tree is only traversed once. > > Time to load the PDF from the bug below in chrome official build: > Before this CL: around 1 minute 25 seconds > After this CL: around 4 seconds > > BUG=chromium:638513 > > Committed: https://pdfium.googlesource.com/pdfium/+/d3a2009d75eac3cda442f545ef0865afae7b35cf TBR=tsepez@chromium.org,weili@chromium.org,thestig@chromium.org # Not skipping CQ checks because original CL landed more than 1 days ago. BUG=chromium:638513 Review-Url: https://codereview.chromium.org/2461063003
2016-10-28Use CompositeMask instead of TransferBitmap when drawing type 3 textnpm
TransferBitmap seems to work improperly when the glyph boxes overlap. In particular, after drawing a glyph, the next glyph's blanks will override what the previous glyph drew, and this is not the correct behavior. While on it, use CheckedNumeric to do operations safely. For reference of somewhere where something similar is done, see: https://cs.chromium.org/chromium/src/third_party/pdfium/core/fxge/ge/cfx_renderdevice.cpp?sq=package:chromium&rcl=1477581616&l=988 BUG=513954 Review-Url: https://codereview.chromium.org/2461743002
2016-10-26Fix some FX_BOOL / int noise in fxcrt.chromium/2902tsepez
Review-Url: https://codereview.chromium.org/2450183003
2016-10-26Take advantage of implicit std::unique_ptr<>(nulltpr_t) ctor.tsepez
Review-Url: https://codereview.chromium.org/2453163002
2016-10-26Traverse PDF page tree only once in CPDF_Documentnpm
Try 2: main fix was recursively popping elements from the stack. Since the Traverse method can be called on non-root nodes from GetPage(), we have to make sure to properly update the parents. Try 1 at https://codereview.chromium.org/2414423002/ In our current implementation of CPDF_Document::GetPage, we traverse the PDF page tree until we find the index we are looking for. This is slow when we do calls GetPage(0), GetPage(1), ... since in this case the page tree will be traversed n times if there are n pages. This CL makes sure the page tree is only traversed once. Time to load the PDF from the bug below in chrome official build: Before this CL: around 1 minute 25 seconds After this CL: around 4 seconds BUG=chromium:638513 Review-Url: https://codereview.chromium.org/2442403002
2016-10-26Fix some bool/int mismatches.tsepez
Found by winxfa bot when fx_bool defined to bool. Review-Url: https://codereview.chromium.org/2449293002
2016-10-24Rename IFX_ stream nameschromium/2900tsepez
It's been troubling for some time that an IFX_FileStream might actually be an in-memory buffer with no backing file. Review-Url: https://codereview.chromium.org/2443723002
2016-10-24Fix root dictionary leak in cpdf_document_unittestNicolas Pena
The CPDF_Document does not own its root dictionary, so add ownership in CPDF_TestDocumentForPages, using ReleaseDeleter because the dictionary cannot be deleted. R=tsepez@chromium.org Review URL: https://codereview.chromium.org/2445753002 .
2016-10-21Add CPDF_Document::GetPage() unittestschromium/2899npm
Added a nontrivial page tree and a test that pages are being fetched properly, both when requested in order and in reverse order. This will help prevent introducing bugs while changing the way the page tree is processed. BUG=chromium:638513 Review-Url: https://chromiumcodereview.appspot.com/2435783006
2016-10-21Re-enable CHECK() than only 0-numbered objects are released.tsepez
Review-Url: https://chromiumcodereview.appspot.com/2424933002
2016-10-21Revert of Fix loading page using hint tables. (patchset #5 id:80001 of ↵npm
https://codereview.chromium.org/2437773003/ ) Reason for revert: CPDF_DataAvail::IsPageAvail is causing crashes. BUG=chromium:658168, chromium:658170 Original issue's description: > Fix loading page using hint tables. > > When linearized document have hint table, > The FPDFAvail_IsPageAvail return true, but > FPDF_LoadPage return nullptr, for non first pages. > > This happens, bacause document not use hint tables, to load page. > > To fix this, I force save the page's ObjNum in document. > > R=npm, dsinclair > > Committed: https://pdfium.googlesource.com/pdfium/+/ef38283688c1ee7c08bcf4204cfb78e09c039782 TBR=dsinclair@chromium.org,tsepez@chromium.org,thestig@chromium.org,art-snake@yandex-team.ru # Skipping CQ checks because original CL landed less than 1 days ago. NOPRESUBMIT=true NOTREECHECKS=true NOTRY=true Review-Url: https://chromiumcodereview.appspot.com/2442663005
2016-10-20Fix loading page using hint tables.chromium/2897art-snake
When linearized document have hint table, The FPDFAvail_IsPageAvail return true, but FPDF_LoadPage return nullptr, for non first pages. This happens, bacause document not use hint tables, to load page. To fix this, I force save the page's ObjNum in document. R=npm, dsinclair Review-Url: https://chromiumcodereview.appspot.com/2437773003
2016-10-20Revert of Traverse PDF page tree only once in CPDF_Document (patchset #4 ↵dsinclair
id:60001 of https://codereview.chromium.org/2414423002/ ) Reason for revert: Possible cause of crbug.com/657897 reverting to find out. BUG=657897 Original issue's description: > Traverse PDF page tree only once in CPDF_Document > > In our current implementation of CPDF_Document::GetPage, we traverse > the PDF page tree until we find the index we are looking for. This is > slow when we do calls GetPage(0), GetPage(1), ... since in this case > the page tree will be traversed n times if there are n pages. This CL > makes sure the page tree is only traversed once. > > Time to load the PDF from the bug below in chrome official build: > Before this CL: 1 minute 40 seconds > After this CL: 5 seconds > > BUG=chromium:638513 > > Committed: https://pdfium.googlesource.com/pdfium/+/7c29e27dae139a205755c1a29b7f3ac8b36ec0da TBR=thestig@chromium.org,tsepez@chromium.org,npm@chromium.org # Not skipping CQ checks because original CL landed more than 1 days ago. BUG=chromium:638513 Review-Url: https://chromiumcodereview.appspot.com/2430313006
2016-10-20Merge the CFWL_*Imp classes into the IFWL_* classes.dsinclair
This Cl merges the implementation classes up into the IFWL classes as the intermediate classes were just acting as proxies. Review-Url: https://chromiumcodereview.appspot.com/2432423002
2016-10-18Traverse PDF page tree only once in CPDF_Documentchromium/2895npm
In our current implementation of CPDF_Document::GetPage, we traverse the PDF page tree until we find the index we are looking for. This is slow when we do calls GetPage(0), GetPage(1), ... since in this case the page tree will be traversed n times if there are n pages. This CL makes sure the page tree is only traversed once. Time to load the PDF from the bug below in chrome official build: Before this CL: 1 minute 40 seconds After this CL: 5 seconds BUG=chromium:638513 Review-Url: https://codereview.chromium.org/2414423002
2016-10-17Fix segv in AddImage()tsepez
The assumption that only indirect objects would be passed is wrong. Restore old behaviour despite muddying ownership constraints. R=thestig@chromium.org BUG=656145 Review-Url: https://codereview.chromium.org/2425843002
2016-10-17Rename CFX_CountRef to CFX_SharedCopyOnWritetsepez
Avoid confusing this class with other ref-counted objects. Review-Url: https://codereview.chromium.org/2426673002
2016-10-17Revert "Make CPDF_Object containers hold objects via unique pointers."tsepez
This reverts commit 1d023881cd53485303c0fcc0b5878e700dc470fd. Reason for revert -- fuzzers hit issues. TBR=thestig@chromium.org Review-Url: https://codereview.chromium.org/2425783002
2016-10-14Revert "Update CPDF_IndirectObjectHolder APIs for unique objects."Tom Sepez
This reverts commit 3ba098595ae56b64eacc0c25ab76b89a4d78d920. TBR=thestig@chromium.org,weili@chromium.org Review URL: https://codereview.chromium.org/2424533003 .
2016-10-14Update CPDF_IndirectObjectHolder APIs for unique objects.tsepez
Doing so highlights a few places where ownership is dubious. Add convenience functions to return an unowned reference to a newly-created indirect object. Review-Url: https://codereview.chromium.org/2419173002
2016-10-13Make CPDF_Object containers hold objects via unique pointers.tsepez
This tweaks the implementation while leaving the API the same. The API change is more disruptive, so break this part off first. Review-Url: https://codereview.chromium.org/2385293002
2016-10-13Optimize roll operator in CPDF_PSEngine some more.thestig
Also move code that belongs in an anonymous namespace into one. Review-Url: https://codereview.chromium.org/2416703002
2016-10-13Make CPDF_Image() constructors saner.chromium/2890tsepez
Introduce the UniqueDictionary typedef and friends, to allow moving to unique_ptrs before the Release() deleter issue is fully resolved. This will go away down the road. Review-Url: https://codereview.chromium.org/2420743002
2016-10-13Put CPDF_StreamContentParser into its own .cpp/.h filestsepez
No functional changes. Make many of its methods private. Review-Url: https://codereview.chromium.org/2415943003
2016-10-13split CPDF_StreamContentParser::AddImage() into 3 overloads.tsepez
Small step before making CPDF_Image stream ownership saner. Review-Url: https://codereview.chromium.org/2416733002
2016-10-12Convert from int to float values.dsinclair
The CPDF_Page::GetDisplayMatrix expects to set float values into the |display_matrix| but all of the input values are currently int. It is possible to overflow the int values, so this CL changes the variables to be int which closer reflects what they're being used for. BUG=chromium:652038 Review-Url: https://codereview.chromium.org/2412983002
2016-10-12Reduce code duplication in CPDF_Type1Font::LoadGlyphMapnpm
Added methods SetExtGID and CalcExtGID for this purpose. Changed protected to private: no one inherits CPDF_Type1Font. Review-Url: https://codereview.chromium.org/2412483006
2016-10-12Check for more undefined behavior in CPDF_PSEngine.thestig
BUG=chromium:639792 Review-Url: https://codereview.chromium.org/2415483002
2016-10-12Get rid of CFX_ArrayTemplate<CPDF_Object*>tsepez
They won't work with std::unique_ptr down the road, so replace with std::vector. Review-Url: https://codereview.chromium.org/2411703003
2016-10-12Optimize roll operator in CPDF_PSEngine.thestig
Rolling 0 times is a no-op. Rolling 0 items is a no-op. Rolling N items J times is the same as rolling N items J % N times. This also avoids an integer overflow corner case. BUG=chromium:648077 Review-Url: https://codereview.chromium.org/2412833002
2016-10-11Delete unused flags from CFX_SubstFontchromium/2888npm
Review-Url: https://codereview.chromium.org/2409173003
2016-10-11Add CPDF_Object::IsInline()tsepez
Prevent having to remember what an object number of 0 implies. Review-Url: https://codereview.chromium.org/2412673002
2016-10-11Rename fpdf_page_doc.cpp -> cpdf_docpagedata.htsepez
Review-Url: https://codereview.chromium.org/2409283002
2016-10-10Move ToString() and friends from CPDF_Object.h to CPDF_String.htsepez
Ditto with the other ToXXX functions to CPDF_xxx.h. Shortly, we will want to introduce another variant: inline std::unique_ptr<CPDF_String> ToString( std::unique_ptr<CPDF_Object>); This will require that CPDF_String be complete which is not the case in the CPDF_Object.h header. Rather than dragging all the other .h's into it, move these to the subclass headers. That way, these will be together when the new form is added. Review-Url: https://codereview.chromium.org/2406033002
2016-10-10Land all the fixes from 5609f39c but don't enable assertchromium/2887tsepez
Split this off so that we don't keep losing this when the assert is reverted again. Review-Url: https://codereview.chromium.org/2401423005
2016-10-10Add method to convert to an indirect object in a dictionary.tsepez
Avoid an assert which previously could only be overcome by removing/re-inserting. Back-fill a unit test for the equivalent Array method. BUG=654387 Review-Url: https://codereview.chromium.org/2403143002
2016-10-10Revert "Re-land "Assert that only 0-numbered objects are Released()""tsepez
This reverts commit b69a98cf50537130f88ce3a799117f2ca8353ac5. Reason for revert: crashes on mac. BUG=654387 TBR=thestig@chromium.org Review-Url: https://codereview.chromium.org/2410483002
2016-10-05Removed unused stuff, some FX_BOOL, and cleanup pageint.h a bitnpm
- Remove some unused stuff from pageint.h. - Replace some FX_BOOL with bool in pageint.h, and related. - Replace some "protected" with "private" in pageint.h. - Move 2 methods into namespace in fpdf_page_parser_old.cpp. Review-Url: https://codereview.chromium.org/2399573002
2016-10-05Re-land "Assert that only 0-numbered objects are Released()"tsepez
This reverts commit b73c99335bfbd158ad16dd59c9c52396ffd2b54b. TBR=thestig@chromium.org Review-Url: https://codereview.chromium.org/2393783004
2016-10-05Rework a redundant check when calling ConvertToIndirectObjectAt()tsepez
This avoids a re-assignment that can otherwise cause a later fault. BUG=pdfium:607 Review-Url: https://codereview.chromium.org/2393953002
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