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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
2016-10-28Change some ints to bools in JBIG2 code.thestig
Review-Url: https://codereview.chromium.org/2450393004
2016-10-28Stop casting function pointers to data pointers in fx_win32_gdipext.cpp.tsepez
Only bad people do that, since it's prohibited by the C standards. Review-Url: https://codereview.chromium.org/2459603004
2016-10-28Fix more FX_BOOL / int noise in core/fpdfsdktsepez
Review-Url: https://codereview.chromium.org/2454263002
2016-10-27Fix FX_BOOL / int noise in JBig2, pass 3tsepez
Review-Url: https://codereview.chromium.org/2457943002
2016-10-27Fix FX_BOOL / int noise in JBig2, pass 2tsepez
Review-Url: https://codereview.chromium.org/2461543002
2016-10-27Fix FX_BOOL / int noise in JBig2_Grd*Proctsepez
Replace most of these with ints since the are used in integer operations. If it walks like a duck, and quacks like a duck ... despite what the hungarian notation might say. Review-Url: https://codereview.chromium.org/2455523005
2016-10-27Fix some FX_BOOL / int noise in core/fx*chromium/2903tsepez
Review-Url: https://codereview.chromium.org/2459673002
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
2016-10-26Add more checks to tiff_read() and tiff_seek().thestig
BUG=chromium:659519 Review-Url: https://codereview.chromium.org/2456553002
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
2016-10-26Avoid some FX_BOOL/bool noise in fx_codec_fax.cpptsepez
NEXTBIT() is particularly pernicious in that it isn't syntactically an expression, but rather two expressions. Replace it with an inline along the way. Review-Url: https://codereview.chromium.org/2452123002
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
2016-10-25Name core/fxge/android files appropriately and use one file per classnpm
- Rename files so that they correspond to class names. - Remove OS_Android ifs, since they are unneeded. - Split fpf_skiafontmgr.h into classes, one per file. Review-Url: https://codereview.chromium.org/2448293002
2016-10-25Use m_GlyphIndex as backup for m_ExtGID on Macnpm
When CGFontGetGlyphWithGlyphName returns 0, it means the glyph name was not recognized. In this case, try using the glyph index to load the glyph. BUG=pdfium:625 Review-Url: https://codereview.chromium.org/2445933002
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
2016-10-21Clean up fpf_skiafontmgrnpm
Remove unused methods, create namespace, nits. Review-Url: https://chromiumcodereview.appspot.com/2433543002
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
2016-10-17Move fxge/android to if(is_android) on buildchromium/2894npm
core/fxge/android files all have if _FX_OS_ == _FX_ANDROID_. Instead, put the files inside if (is_android) on Build.gn. Also, the skia file is already under if (pdf_use_skia), so the if defined(_SKIA_SUPPORT_) can be removed. Review-Url: https://codereview.chromium.org/2413983004
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
2016-10-17Strengthen bounds check in CWeightTable::Calc * part IIstackexploit
This CL implemented a better version of CWeightTable::GetPixelWeightSize(), which will calculate the size of array PixelWeight.m_Weights correctly to prevent potential heap buffer overflow conditions. BUG=chromium:654183 R=ochang@chromium.org, thestig@chromium.org, dsinclair@chromium.org Review-Url: https://codereview.chromium.org/2404453003
2016-10-15Fix some nits in cpdf_annotlist.cpp.thestig
Review-Url: https://codereview.chromium.org/2395693002
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
2016-10-13Clean up fx_basic_util a littlenpm
- Nit fixes. - Remove unused methods. - Replace FX_BOOL with bool. Review-Url: https://codereview.chromium.org/2419433004
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
2016-10-13Verify number of ex flags matches number of ex items.dsinclair
Currently the JBig2 decoder can leak subimages in the case where we mark more items in EXFLAGS then we have SDNUMEXSYMS. This Cl checks for this condition and fails the decode if it happens. BUG=chromium:654365 Review-Url: https://codereview.chromium.org/2419553002
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
2016-10-11Deleted unused members in CTTFontDescnpm
Review-Url: https://codereview.chromium.org/2408213002
2016-10-11Rename fpdf_page_doc.cpp -> cpdf_docpagedata.htsepez
Review-Url: https://codereview.chromium.org/2409283002
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