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2016-09-19Remove CPDF_Object::Destroy { delete this; }chromium/2866tsepez
We can delete this just fine on our own. Review-Url: https://codereview.chromium.org/2355593002
2016-09-19Fix "heap use after free" bug.art-snake
BUG=647612 Review-Url: https://codereview.chromium.org/2350193003
2016-09-19Clean up CPDF_Stream.tsepez
Replace the CPDF_Stream(nullptr, 0, nullptr) pattern with a default ctor. Remove unused parameters from CPDF_Stream::SetData(). Both are always passed as FALSE. CPDF_Stream declared its own m_GenNum, which shadowed the one in CPDF_Object. It was used only to distinguish file/memory streams, so add a bool explicitly for this purpose. Remove the union, it would be sad if we confused user data with a C++ object with virtual function calls. Use unique_ptrs with appropriate deleters to manage memory. Review-Url: https://codereview.chromium.org/2347993002
2016-09-19Revert of Pdfium: Fix fonts leaking on ClosePage. (patchset #10 id:180001 of ↵dsinclair
https://codereview.chromium.org/2158023002/ ) Reason for revert: Causes heap-use-after-free. See crbug.com/647612. Original issue's description: > Fix memory leaking on ClosePage. > CFX_FontCache refactoring: > after this CL: Only one global CFX_FontCache used. Any cached items from it, are released, when its are not used. > > BUG=79367,48791 > > The fonts was not cleared after unloading pages. > > Test pdf: > > http://www.nasa.gov/pdf/750614main_NASA_FY_2014_Budget_Estimates-508.pdf > > For this file, we have ~5 fonts per page, which equal ~1 Mb per page. > In this PDF we have 670 pages, as result after slow scrolling(reading) full document we have ~600 Mb fonts data in memory. > > memory usage of PDF Plugin: > before this CL: ~660 Mb > after this CL: ~100 Mb > > Committed: https://pdfium.googlesource.com/pdfium/+/cde5101eb15b24519e89fa500fe37038bc8e2201 TBR=tsepez@chromium.org,brucedawson@chromium.org,npm@chromium.org,art-snake@yandex-team.ru # Not skipping CQ checks because original CL landed more than 1 days ago. BUG=79367,48791 Review-Url: https://codereview.chromium.org/2350763002
2016-09-19Remove duplicated charset definitions, and move them to fx_font.hnpm
PWL_FontMap does not need its own charset definitions. fx_edit.h does not need to define DEFAULT_CHARSET. XFA have their own definitions. They look different in that most are MAC or MSWin charset definitions. So they are left untouched. public/fpdf_sysfontinfo.h duplicate ones were left untouched due to being in public folder. Review-Url: https://codereview.chromium.org/2347313002
2016-09-19Fix compare between signed and unsigned values in ↵stackexploit
CPDF_ImageRenderer::StartDIBSource. Correct the compare logic in CPDF_ImageRenderer::StartDIBSource() by using size_t instead of int. BUG=chromium:645036 R=ochang@chromium.org Review-Url: https://codereview.chromium.org/2323663002
2016-09-16Reduce duplicated code in CPDF_Document by adding auxiliary methodschromium/2865chromium/2864chromium/2863npm
ProcessbCJK and CalculateFontDesc methods are used to reduce the code duplication between AddFont and AddWindowsFont methods. Review-Url: https://codereview.chromium.org/2341373003
2016-09-15Fix memory leaking on ClosePage.chromium/2862art-snake
CFX_FontCache refactoring: after this CL: Only one global CFX_FontCache used. Any cached items from it, are released, when its are not used. BUG=79367,48791 The fonts was not cleared after unloading pages. Test pdf: http://www.nasa.gov/pdf/750614main_NASA_FY_2014_Budget_Estimates-508.pdf For this file, we have ~5 fonts per page, which equal ~1 Mb per page. In this PDF we have 670 pages, as result after slow scrolling(reading) full document we have ~600 Mb fonts data in memory. memory usage of PDF Plugin: before this CL: ~660 Mb after this CL: ~100 Mb Review-Url: https://codereview.chromium.org/2158023002
2016-09-15Rename dictionary set and get methodsdsinclair
This Cl makes the Get and Set methods consistenly use {G|S}et<Type>For. BUG=pdfium:596 Review-Url: https://codereview.chromium.org/2334323005
2016-09-13Sort include entries.dsinclair
This CL updates all of the includes to be correctly sorted. A PRESUBMIT warning is added (from chromium) that will warn if the includes are in the wrong order on upload. Review-Url: https://codereview.chromium.org/2337293002
2016-09-13Remove more strcmp/memcmp usage.tsepez
Review-Url: https://codereview.chromium.org/2340513002
2016-09-12Refactor CPDF_Document by creating new methodsnpm
- Methods GetPagesDict, ProcessNonbCJK, CalculateFlags, and CalculateEncodingDict created to reduce duplicated code. - Code nits Review-Url: https://codereview.chromium.org/2323793003
2016-09-09Define behaviors of FPDF_RenderPageBitmap_Retail and FPDF_FFLDraw.chromium/2858chromium/2857chromium/2856jaepark
Previously, PDFium only supported widget annotations to draw forms. As we've implemented other annotations, the behavior of FPDF_RenderPageBitmap_Retail and FPDF_FFLDraw changed. So, this CL clearly defines what needs to be done in FPDF_RenderPageBitmap_Retail and FPDF_FFLDraw. This CL first assumes that PDFium users will always call FPDF_RenderPageBitmap_Retail and FPDF_FFLDraw to render PDF pages, because otherwise they are not able to support PDF forms. FPDF_RenderPageBitmap_Retail should only deal with non-widget annotations, such as highlight, underline, text, etc. If FPDF_ANNOT flag is passed, non-widget annotations are drawn. Otherwise, they are hidden. FPDF_FFLDraw should only deal with annotations that requires user-interaction, such as widget annotations and popup annotation. Since popup annotation is associated with non-widget annotation, they should not be drawn if the associated annotation is hidden. Thus, if FPDF_ANNOT flag is passed, popup annotations are drawn. Otherwise, they are hidden. Widget annotations should be always drawn regardless of FPDF_ANNOT flag since they need to be always displayed for PDF forms. Also, roll DEPS for testing/corpus to 8485b30. BUG=pdfium:594 Review-Url: https://codereview.chromium.org/2323203002
2016-09-08Delete unused methods in CPDF_Documentnpm
Review-Url: https://codereview.chromium.org/2323933002
2016-09-08Switch to ValueOrDiedsinclair
We know the values are always valid at this point, so use ValueOrDie instead of ValueOrDefault. BUG=chromium:637984 Review-Url: https://codereview.chromium.org/2319343003
2016-09-07Verify image dimentions before usingdsinclair
Verify the provided image size is within bounds before loading. BUG=chromium:639160 Review-Url: https://codereview.chromium.org/2323473002
2016-09-07Verify pattern start values.dsinclair
When calculating the starting x and y for a pattern it is possible to overflow the int value. Use checked math to make sure we don't overflow. BUG=chromium:637984 Review-Url: https://codereview.chromium.org/2317283002
2016-09-07Maybe avoid a copy in CPDF_RenderStatus::SelectClipPathtsepez
Use the shared copy-on-write version instead of the underlying CFX_GraphStateData since it may not always get modified. Review-Url: https://codereview.chromium.org/2316823002
2016-09-06Make CPDF_TextStateData private to CPDF_TextState.chromium/2853tsepez
Review-Url: https://codereview.chromium.org/2313083002
2016-09-06Move CPDF_GraphState to CFX_GraphStatetsepez
The FX layer is spying on its private data, so make the job of ref-counting it live in FX as well, instead of up a layer at pdfapi. Pre-cursor to making this private and passing the graph state itself everywhere. Review-Url: https://codereview.chromium.org/2314223002
2016-09-06Make CPDF_ContentMarkData private to CPDF_ContentMarktsepez
Review-Url: https://codereview.chromium.org/2312743005
2016-09-06Make ColorStateData private to CPDF_ColorStatetsepez
Review-Url: https://codereview.chromium.org/2311313002
2016-09-03Use safe bool conversion operators in fpdf_page/chromium/2852chromium/2851chromium/2850tsepez
Review-Url: https://codereview.chromium.org/2310693002
2016-09-02Make CPDF_ClipPath have a CPDF_ClipPathData rather than inheriting.tsepez
Make Data private to the ClipPath class which manages it transparently for its callers. This prevents the callers from having to remember to make a copy before dirtying the shared data, since the operations that modify state will do this under the covers for us. Review-Url: https://codereview.chromium.org/2301263003
2016-09-02Remove CFX_Matrix::Copy() in favor of assignmenttsepez
The default assignment operator will suffice and allows us to write matrix1 = matrix2; Review-Url: https://codereview.chromium.org/2307953003
2016-09-02Make CPDF_GeneralStateData private.tsepez
All interaction goes through the CPDF_GeneralState, which manages the underlying storage transparently to the callers. Make StateData use a real string and a real matrix rather than C-style arrays. Review-Url: https://codereview.chromium.org/2302683002
2016-09-02Make CPDF_Path have a CFX_Path rather than inheritingtsepez
Review-Url: https://codereview.chromium.org/2305103002
2016-09-02Make CPDF_GeneralState have a CPDF_GeneralStateDatachromium/2848tsepez
Remove a const cast along the way and propagate to callers. Review-Url: https://codereview.chromium.org/2303553002
2016-09-01Use unsigned page indexes in CPDF_HintTables.thestig
Fix up callers from CPDF_DataAvail. Review-Url: https://codereview.chromium.org/2294383003
2016-09-01Move CPDF_Type3Cache and CPDF_Type3Glyphs to their own filesnpm
Review-Url: https://codereview.chromium.org/2298163004
2016-09-01Fix CPDF_CIDFont::GlyphFromCharCode for fonts flagged with PDFFONT_SYMBOLICnpm
UnicodeFromCharCode should be tried even if the font is flagged as PDFFONT_SYMBOLIC. The result should be checked in case it's empty. This fixes some corpus tests that were being incorrectly rendered, as well as the bug below. A deps change will be required before landing this CL. BUG=chromium:591303 Review-Url: https://codereview.chromium.org/2300893003
2016-09-01Handle another integer overflow in ReadPageHintTable().thestig
Return false instead of crashing. BUG=641882 Review-Url: https://codereview.chromium.org/2300903002
2016-09-01Better validate hint table header bits entries.thestig
BUG=637119 Review-Url: https://codereview.chromium.org/2305443003
2016-09-01Make CPDF_ContentMark have a CPDF_ContentMarkData.tsepez
This one doesn't require an explict Emplace(), as the object seems to get constructed only as a side-effect of making a private copy. Review-Url: https://codereview.chromium.org/2298953002
2016-08-31Check first page number in CPDF_HintTables::ReadPageHintTable().thestig
BUG=642655 Review-Url: https://codereview.chromium.org/2298753003
2016-08-31Make CPDF_ColorState have a CFX_ColorStateData rather than inheritingtsepez
Review-Url: https://codereview.chromium.org/2294133002
2016-08-31Make CPDF_GraphState have a CPDF_GraphStateData instead of inheriting.tsepez
Get callers out of the copy-before-write business, and let the class manage it instead. Review-Url: https://codereview.chromium.org/2292363002
2016-08-30Clean up CPDF_CMap declarationchromium/2845npm
- Removed unused methods - Friendship with CPDF_PathManager is not needed - Protected may be changed to private Review-Url: https://codereview.chromium.org/2292023003
2016-08-30Make CPDF_TextState have a CPDF_TextStateData rather than inheriting one.tsepez
Review-Url: https://codereview.chromium.org/2287313004
2016-08-30Guard against overflow when calculating font weight.dsinclair
This CL uses the safe math libraries when calculating the font weight from the StemV value as very large values for StemV can cause the signed int to overflow. BUG=chromium:641418 Review-Url: https://codereview.chromium.org/2293633002
2016-08-30More better const-ness in CFX_CountRef<>tsepez
There are a couple of places where code is calling GetObject() that should be calling GetPrivateCopy(), but works because the value may not be shared at the time. This just makes it safer. Review-Url: https://codereview.chromium.org/2290863002
2016-08-29Revert "Add -> operators to CFX_CountRef."tsepez
This reverts commit c10c23a2b1999b1cb0354fd4db9837dc63a3d833. TBR=dsinclair@chromium.org Review-Url: https://codereview.chromium.org/2285283003
2016-08-29Revert "Replace wrapper methods in CPDF_Path with -> operator."tsepez
This reverts commit d09a09751f724ecdb1a0bc307447a3d0c212ebff. TBR=dsinclair@chromium.org Review-Url: https://codereview.chromium.org/2291833002
2016-08-29Revert "Use ->() in CPDF_ColorState"tsepez
This reverts commit 91ddd3f7501429222f648b986a99f3959a398889. Reason for revert: may introduce sublte bugs, more thought required. TBR=dsinclair@chromium.org Review-Url: https://codereview.chromium.org/2294553002
2016-08-29Verify element exists before accessing.dsinclair
Currently when the parser utility classes are outputting to a text buffer we do not verify that an element from an array exists before accessing. We can have null items in arrays (and dictionaries but the dictionary case is already handled). This Cl updates the code to check the element exists before attempting to use the element. BUG=chromium:641076 Review-Url: https://codereview.chromium.org/2292473004
2016-08-29Use ->() in CPDF_ColorStatetsepez
Move methods to CPDF_ColorStateData. Move MakePrivateCopy() methods to call sites. Remove now-empty cpdf_colorstate.cpp file. Review-Url: https://codereview.chromium.org/2291763002
2016-08-29Initialize the CPDF_Document pointerdsinclair
This CL is a speculative fix for the associated BUG. Make sure the CPDF_Document is initialized in the constructor. BUG=chromium:640998 Review-Url: https://codereview.chromium.org/2291743002
2016-08-29Replace wrapper methods in CPDF_Path with -> operator.tsepez
These just invoked exaclty the same methodes in the underlying xxxData class, which we can now do with just a ->() Move some methods to the xxxData class, where they belong. In doing so, put MakePrivateCopy() calls at each callsite for those methods that made a copy. Review-Url: https://codereview.chromium.org/2286983002
2016-08-29Add some limit checks to ReadSharedObjHintTable().thestig
BUG=641444 Review-Url: https://codereview.chromium.org/2283893003
2016-08-26Add -> operators to CFX_CountRef.chromium/2842tsepez
Allows CFX_CountRefs to behave more like pointers. Rename SetNull() to Clear() for consistency with other ptrs. Change GetPrivateCopy() into MakePrivateCopy() with no return, since the -> operators are clearer than getting an object pointer. Review-Url: https://codereview.chromium.org/2283113002
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