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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
2016-10-13Clean up fx_basic_util a littlenpm
- Nit fixes. - Remove unused methods. - Replace FX_BOOL with bool. Review-Url: https://codereview.chromium.org/2419433004
2016-10-11Delete unused flags from CFX_SubstFontchromium/2888npm
Review-Url: https://codereview.chromium.org/2409173003
2016-10-11Deleted unused members in CTTFontDescnpm
Review-Url: https://codereview.chromium.org/2408213002
2016-10-11Fix negative font rendering on Mac by reversing matrix c component.npm
Notice that this is just making it analoguous to how it works when the font is positive: the b and d components are reversed. Currently, when the font is negative, only the a component is reversed. The c one needs to be reversed as well. BUG=chromium:653941 Review-Url: https://codereview.chromium.org/2411833002
2016-10-11Slightly simplify CFX_FontMapper::FindSubstFontnpm
- Deleted useless flag FXFONT_SUBST_STANDARD - Change kExternalFontIndex to something more meaningful - Fetch symbolic fonts using UseInternalSubst too Review-Url: https://codereview.chromium.org/2400773002
2016-10-06Split m_InstalledTTFonts into two vectors to avoid sketchy logic.npm
Instead of relying on ' ' to determine whether the CFX_Bytestring is added on one place or another, use another vector. When trying to match fonts from the fontmapper, compare with both vectors. BUG=pdfium:510 Review-Url: https://codereview.chromium.org/2395883002
2016-10-06switch to new skia blend mode enum classcaryclark
Skia's interface to transfer modes is not described by an enum instead of a class. R=reed@google.com, dsinclair@chromium.org Review-Url: https://codereview.chromium.org/2394683004
2016-10-04Move core/fpdfapi/fpdf_render to core/fpdfapi/renderdsinclair
BUG=pdfium:603 Review-Url: https://codereview.chromium.org/2393593002
2016-10-04Move core/fpdfapi/fpdf_parser to core/fpdfapi/parserdsinclair
BUG=pdfium:603 Review-Url: https://codereview.chromium.org/2392603004
2016-10-04Move core/fpdfapi/fpdf_page to core/fpdfapi/pagedsinclair
BUG=pdfium:603 Review-Url: https://codereview.chromium.org/2386423004
2016-10-04Move core/fpdfapi/fpdf_font to core/fpdfapi/fontdsinclair
BUG=pdfium:603 Review-Url: https://codereview.chromium.org/2392773003
2016-10-04update skia to latest sourcescaryclark
Update clip to use intersect verb from canvas. R=dsinclair@chromium.org Review-Url: https://codereview.chromium.org/2384283002
2016-10-03Add ptr_util.h from base until std::make_unique<> availabletsepez
Review-Url: https://codereview.chromium.org/2386273004
2016-10-03Remove _FX_OS_ checks in core/fxge/win32/.thestig
All the files are already excluded by the build system. Review-Url: https://codereview.chromium.org/2387863002
2016-09-30Fix build of pdf_hint_table_fuzzer.chromium/2877tsepez
Restore CPDF_Dictionary default constructor. Use it in places where reasonable in the code. TBR=dsinclair@chromium.org TBR=thestig@chromium.org Review-Url: https://codereview.chromium.org/2383843002
2016-09-29Move fpdfsdk/include to fpdfsdkdsinclair
BUG=pdfium:611 Review-Url: https://codereview.chromium.org/2384503003
2016-09-29Move core/fxge/include to core/fxgedsinclair
BUG=pdfium:611 Review-Url: https://codereview.chromium.org/2377393002
2016-09-29Move core/fxcrt/include to core/fxcrtdsinclair
BUG=pdfium:611 Review-Url: https://codereview.chromium.org/2382723003
2016-09-29Move core/fxcodec/codec/include and core/fxcodec/include files updsinclair
BUG=pdfium:611 Review-Url: https://codereview.chromium.org/2381063002
2016-09-29Move core/fpdfapi/fpdf_parser/include to core/fpdfapi/fpdf_parserdsinclair
BUG=pdfium:611 Review-Url: https://codereview.chromium.org/2383543002
2016-09-29Move core/fpdfapi/fpdf_font/include to core/fpdfapi/fpdf_fontdsinclair
BUG=pdfium:611 Review-Url: https://codereview.chromium.org/2375283003
2016-09-29Remove unused CFX_AutoFontCachethestig
All usage were refactored in commit 9972ff99. Review-Url: https://codereview.chromium.org/2377203002
2016-09-28Replace a few more std::unique_ptr.reset() with WrapUnique assignments.thestig
And fix a typo. TBR=tsepez@chromium.org Review-Url: https://codereview.chromium.org/2382443004
2016-09-28Use string pools in some dictionaries, names, and strings.tsepez
BUG=pdfium:597 Review-Url: https://codereview.chromium.org/2345063002
2016-09-26Strengthen bounds check in CWeightTable::Calc.stackexploit
The buffer PixelWeight.m_Weights was allocated by calling FX_TryAlloc(uint8_t, m_dwWeightTablesSize), but PixelWeight.m_Weights was an int array. Thus bounds check such as |if (idx >= m_dwWeightTablesSize)| in function CWeightTable::Calc() and |idx < m_dwWeightTablesSize ? &pWeight->m_Weights[idx] : nullptr| in function CWeightTable::GetValueFromPixelWeight() were insufficient. This CL strengthens bounds check for accessing int type array PixelWeight.m_Weights. BUG=chromium:619398 R=ochang@chromium.org, thestig@chromium.org Review-Url: https://codereview.chromium.org/2322903002
2016-09-23Remove FX_BOOL from cpdf_fontchromium/2872chromium/2871chromium/2870npm
In all cases, bool can be used instead without problems. Review-Url: https://codereview.chromium.org/2368693002
2016-09-20Delete unused GetBitMap() in fx_agg_drivernpm
Review-Url: https://codereview.chromium.org/2353143002
2016-09-20Refactor CFX_FontCache to have only one in GE Module.art-snake
After this CL: only one global CFX_FontCache used. Any cached items from it, are released, when they are not being used. This is restore part of reverted CL: Original CL: https://codereview.chromium.org/2158023002 Revert reason: BUG=647612 Fix bug CL: https://codereview.chromium.org/2350193003 Review-Url: https://codereview.chromium.org/2350243002
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
2016-09-15Fix 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
2016-09-14Map glyph bitmap in LookUpGlyphBitmap even when unsuccessfulnpm
CFX_FaceCache::LookUpGlyphBitMap should remember its unsuccessful glyph bitmap calculations. This is especially important if there are a lot of repeated requests for the same glyph with large bitmaps (which means long calculations in freetype). With this CL, the pdf in the bug below will be rendered quickly. BUG=chromium:638856 Review-Url: https://codereview.chromium.org/2338883004
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
2016-09-12Refactor 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
2016-09-08Fix memory management errors for font loading and copyingweili
A few issues are fixed: --Change variable |m_bLogic| in CFX_Font to |m_bShallowCopy| to reflect its meaning better; --For a shallow copy of font, we must guarantee that the copied font will not be deleted until the shallow copy is deleted. So need to increase the src font's refcount when copying it; --The stream |m_pOwnedStream| needs to have matched new/delete These errors need to be fixed before we can properly delete all the fonts to address the leaks. BUG=pdfium:242 Review-Url: https://codereview.chromium.org/2322043002
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
2016-09-06Move CFX_Font definition to its own file and clean upnpm
- Rename fx_ge_font.cpp to cfx_font.cpp - Deleted unused CONTRAST_RAMP_STEP in fx_ge_text.cpp - Move CFX_Font definitions and auxiliary methods in fx_ge_text to cfx_font - Remove extern "C", static, and underscore prefixes in new namespace methods in cfx_font.cpp Review-Url: https://codereview.chromium.org/2304493005
2016-08-31Attempt to fix potential integer overflow in CFX_FaceCache::LoadGlyphPath().chromium/2846thestig
BUG=641333 Review-Url: https://codereview.chromium.org/2294183002
2016-08-31Use CheckedNumeric for strength calculation.dsinclair
Update the calculation of the outlines bold strength to use a CheckedNum instead of an int. BUG=chromium:639506 Review-Url: https://codereview.chromium.org/2296193002
2016-08-30Make CPDF_TextState have a CPDF_TextStateData rather than inheriting one.tsepez
Review-Url: https://codereview.chromium.org/2287313004
2016-08-29Revert "Add -> operators to CFX_CountRef."tsepez
This reverts commit c10c23a2b1999b1cb0354fd4db9837dc63a3d833. TBR=dsinclair@chromium.org Review-Url: https://codereview.chromium.org/2285283003
2016-08-29Move CFX_SubstFont and CTTFontDesc into their own filesnpm
Review-Url: https://codereview.chromium.org/2292503002
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
2016-08-26Rework CFX_CountRef in terms of CFX_RetainPtr.tsepez
Make use of existing ref count work rather than re-inventing it. Review-Url: https://codereview.chromium.org/2281683002
2016-08-25Simplify some code in CFX_FontMapper.thestig
Review-Url: https://codereview.chromium.org/2277323002
2016-08-25Tidy up CFX_PathDatatsepez
Remove friendship with CFX_Path Pack members tighter on 64-bits. Review-Url: https://codereview.chromium.org/2275883004
2016-08-24Allow CPDF_Font to use fallback fontsnpm
Added a vector of pointers to CFX_Fonts in the class CPDF_Font, so that fallback fonts may be used. In CPDF_CharPosList::Load, the glyphs for each character are calculated. When m_Font does not support a character, a fallback font is selected and the character is rendered using that font. This meant adding an attribute to FXTEXT_CHARPOS so it knows which font renders it. Also, methods in fpdf_render_text.cpp now may need to call device drawing methods multiple times because these only support one font at a time. In CPDF_TextRenderer::DrawNormalText and in CPDF_TextRenderer::DrawTextPath, the device drawing method is called as few times as possible by grouping contiguous characters rendered by the same font. In CPDF_RenderStatus::DrawTextPathWithPattern, drawing was already done one character at a time, but precalculating CFX_FaceCache. Now, the face cache is precalculated for all of the fallback fonts. The list of fallback fonts does not include tha main font. Otherwise the list would be of raw pointers to avoid double free problems. For now, the font Arial is used as fallback. This should fix the issue of not seeing Latin characters displayed when bad fonts are used. However, this should be improved. Tested manually using the file in the bug, plus a font directory containing a font that supports Hangul but not Latin. This font is chosen as the substitute font, but Latin characters are now being rendered. Design proposal: go/pdfium_fallbackfonts BUG=pdfium:358 Review-Url: https://codereview.chromium.org/2276653002
2016-08-24Delete unused methods from CFX_RenderDevicenpm
Review-Url: https://codereview.chromium.org/2269203002
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