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2015-10-09Fix heap-buffer-overflow in color_sycc_to_rgbJun Fang
It's a bug existing in the conversion from YUV420 to RGB. For YUV 420 format, four pixels have 4 Y but only one U and one V. In some cases, there are odd columns or lines in some images. The pixels on last line or column may have Y but no U or V data. For this case, We shall extend U or V using the data on previous column or line. BUG=497357 R=tsepez@chromium.org Review URL: https://codereview.chromium.org/1342683002 .
2015-10-08Minimal revert from commit d03ba8d.Lei Zhang
The values that were changed to size_t can go negative. TBR=tsepez@chromium.org Review URL: https://codereview.chromium.org/1400723002 .
2015-10-08Fix a bunch of sign mismatch warnings.Lei Zhang
Also remove some gotos and move code into an anonymous namespace. R=tsepez@chromium.org Review URL: https://codereview.chromium.org/1356373003 .
2015-10-08Fix a malloc/delete mismatch introduced in commit 8a9ce57.Lei Zhang
Just get rid of the malloc altogether and use CJBig2_List instead. BUG=540873 R=tsepez@chromium.org Review URL: https://codereview.chromium.org/1394933002 .
2015-10-09Various changes to JBig2 cache:David Lattimore
- Makes the cache be per-document - Keys the cache on ObjNum and stream offset instead of keying on a pointer to the data (which can result in false cache hits). - Makes it so the cache is only used for the globals stream. - Reenable the cache. R=thestig@chromium.org BUG=pdfium:207 Review URL: https://codereview.chromium.org/1380243004 .
2015-10-08Put CJBig2_SymbolDict's images in a CJBig2_List container.Lei Zhang
Also mark it private. R=tsepez@chromium.org Review URL: https://codereview.chromium.org/1395613003 .
2015-10-08Relax the check on 0 length streams.chromium/2531Lei Zhang
CPDF_SyntaxParser::ReadStream() originally created stream objects when the length is 0. Commit 2526930 tightened the constraint and returned NULL. This has some adverse affects, as seen in Chromium's print preview of PDFs. Instead, relax the constraint a little so when the length is 0, return a CPDF_Stream with NULL data and size 0. BUG=531835 Review URL: https://codereview.chromium.org/1394743002 .
2015-10-08Remove some dead code from CCodec_Jbig2Module. Variable was only ever set to ↵David Lattimore
false. R=thestig@chromium.org BUG= Review URL: https://codereview.chromium.org/1393153002 .
2015-10-07Stop inlining CJBig2_BitStream.Lei Zhang
R=tsepez@chromium.org Review URL: https://codereview.chromium.org/1393823002 .
2015-10-07Fix the Windows build after commit 8a9ce57.Lei Zhang
TBR=tsepez@chromium.org Review URL: https://codereview.chromium.org/1396533002 .
2015-10-07Remove gotos in JBig2 code.Lei Zhang
R=tsepez@chromium.org Review URL: https://codereview.chromium.org/1382613003 .
2015-10-07Fix include paths for fx_system.hDavid Lattimore
R=thestig@chromium.org BUG= Review URL: https://codereview.chromium.org/1390863002 .
2015-10-05Fix regression in JBIG2 decoding from commit ce37d73.chromium/2530chromium/2529Lei Zhang
many callers can tolerate CJBig2_ArithIntDecoder::decode() OOB failure. BUG=539749, pdfium:209 R=tsepez@chromium.org Review URL: https://codereview.chromium.org/1384663007 .
2015-10-05Original patch by forshaw.Tom Sepez
Added a fallback Win32 font information class for win32k lockdown. This is to support running PDFIUM within the Win32k lockdown by removing dependancies on USER32/GDI for the font information code. It falls back to using a freetype/directory enumeration implementation if it detects the win32k system calls have been disabled by policy. BUG=523278 R=tsepez@chromium.org Review URL: https://codereview.chromium.org/1306883002 .
2015-10-05Disable JBIG2 cache; prevent data corruption - try 2.Lei Zhang
Also change CJBig2_SymbolDict::DeepCopy() to return a unique_ptr to prevent a potential leak if the cache size was 0. BUG=pdfium:207 R=tsepez@chromium.org, jbreiden@google.com Review URL: https://codereview.chromium.org/1374633004 .
2015-10-03Fix NULL pointer dereference in CPDF_InterForm.Lei Zhang
BUG=537772 R=tsepez@chromium.org Review URL: https://codereview.chromium.org/1387703002 .
2015-10-02Get rid of gotos in CPDF_SyntaxParser and FlateUncompress().Lei Zhang
R=tsepez@chromium.org Review URL: https://codereview.chromium.org/1360103002 .
2015-10-02Prevent divide by zeros in CJBig2_GSIDProc::decode_MMR().Lei Zhang
Check the image size before attempting to decode. BUG=538103 R=tsepez@chromium.org Review URL: https://codereview.chromium.org/1377493005 .
2015-10-02Fix a leak in PDF_DataDecode() on failure.Lei Zhang
Found using the test examples from https://crbug.com/537780 R=tsepez@chromium.org Review URL: https://codereview.chromium.org/1376413003 .
2015-10-02Turn a couple functions that always return true to return void.Lei Zhang
R=tsepez@chromium.org Review URL: https://codereview.chromium.org/1386463003 .
2015-10-02Fix PNG decoding divide by zero error due to zero row count.Lei Zhang
BUG=537790 R=tsepez@chromium.org Review URL: https://codereview.chromium.org/1379243002 .
2015-10-01Disable JBIG2 cache; prevent data corruptionLei Zhang
BUG=pdfium:207 Original author: jbreiden@google.com Original CL: http://codereview.chromium.org/1362133003/ R=jbreiden@google.com Review URL: https://codereview.chromium.org/1382073002 .
2015-10-01Clean up some image decoder classes:Lei Zhang
- Use std::vector<uint8_t> instead of raw uint8_t* - Make ICodec_ScanlineDecoder::GetScanline() return const uint8_t* - Add FxFreeDeleter, use it in CCodec_ImageDataCache. - Make CCodec_ImageDataCache encapsulate its data members. R=tsepez@chromium.org Review URL: https://codereview.chromium.org/1361053002 .
2015-10-01Cleanup JBig2_ArithIntDecoder.Lei Zhang
R=tsepez@chromium.org Review URL: https://codereview.chromium.org/1359013003 .
2015-09-29Cleanup CJBig2_ArithDecoder.Lei Zhang
R=tsepez@chromium.org Review URL: https://codereview.chromium.org/1368153003 .
2015-09-29Fix blank page issue caused by too strict correction on bpcchromium/2523Jun Fang
For bit per component (bpc), PDF spec mentions that a RunLengthDecode or DCTDecode filter shall always deliver 8-bit samples. However, some PDF files don't follow this rule. We can find that filter is RunLengthDecode but bpc is 1 in the provided test file. In this case, pdfium will correct bpc to 8 but the actual bpc is 1. It causes a failure because the data is much more than the expected. To handle this case, pdfium doesn't correct bpc to 8 when the original bpc is 1. BUG=512557 R=tsepez@chromium.org Review URL: https://codereview.chromium.org/1328213002 .
2015-09-28Cleanup some fx_codec_fax.cpp code.Lei Zhang
R=tsepez@chromium.org Review URL: https://codereview.chromium.org/1367633005 .
2015-09-25Revert "Revert "Fix the issue that pdfium swallows 'fi' or 'ff' in some pdf ↵Jun Fang
files"" This reverts commit fa9756f77ad6145940d3dc697814b84f5755ae17. TBR=thestig@chromium.org Review URL: https://codereview.chromium.org/1307353005/
2015-09-25Revert "Fix the issue that pdfium swallows 'fi' or 'ff' in some pdf files"Jun Fang
This reverts commit 9bd18183ba8210c91d71c3060146235750a4c71c.
2015-09-25Fix the issue that pdfium swallows 'fi' or 'ff' in some pdf filesJun Fang
Pdfium swallows 'fi' or 'ff' in some tested files because it doesn't load the embedded font file correctly. The root cause is that there is incorrect keyword like 'ngendstream' in the stream of the embedded font file. Pdfium tries to find another correct keyword but uses wrong offset rather than accumulated offset. BUG=524043 R=thestig@chromium.org, tsepez@chromium.org Review URL: https://codereview.chromium.org/1307353005 .
2015-09-24Fix a leak in CJBig2_Context.chromium/2520Lei Zhang
- Remove dead code - Use unique_ptr BUG=pdfium:202 R=tsepez@chromium.org Review URL: https://codereview.chromium.org/1365903002 .
2015-09-24Split up JBig2_GeneralDecoder.cpp.Lei Zhang
R=tsepez@chromium.org Review URL: https://codereview.chromium.org/1359233002 .
2015-09-23Fix a leak in CJBig2_CachePair.Lei Zhang
R=jbreiden@google.com Review URL: https://codereview.chromium.org/1346043003 .
2015-09-22Change nonstd::unique_ptr to take a custom deleter.Lei Zhang
Code is mostly stolen from Chromium's scoped_ptr. - Add unit tests. - Use this to fix a leak. BUG=chromium:531408 R=jyasskin@chromium.org, tsepez@chromium.org Review URL: https://codereview.chromium.org/1351383004 .
2015-09-22Add missing 'return' keyword.Lei Zhang
Discovered with experimental Clang plugin that flags temporary objects that are immediately destroyed. patch from issue 1359063003 at patchset 1 (http://crrev.com/1359063003#ps1) A=mdempsky@chromium.org R=mdempsky@chromium.org Review URL: https://codereview.chromium.org/1359103002 .
2015-09-18Fix a #include in fpdf_page_func.cpp.David Lattimore
Not sure why building with gyp was working despite the missing '../' but it wasn't working in stricter build systems. BUG= R=thestig@chromium.org Review URL: https://codereview.chromium.org/1321293003.
2015-09-15Implement FPDFAction_GetFilePath().Lei Zhang
The API is the same as the Foxit version, except the encoding is specified as UTF-8 instead of local encoding. Also remove CPDF_LWinParam since it's unused. BUG=chromium:517713 R=jun_fang@foxitsoftware.com Review URL: https://codereview.chromium.org/1335373002 .
2015-09-15Cleanup JBig2_GeneralDecoder.cpp.Lei Zhang
- FX_Alloc() can't fail and return. - Use unique_ptr / remove gotos. - NULL -> nullptr. - Combine common code. R=tsepez@chromium.org Review URL: https://codereview.chromium.org/1337823003 .
2015-09-15Cleanup: Fix a typo. s/Processive/Processing/Lei Zhang
R=tsepez@chromium.org Review URL: https://codereview.chromium.org/1338573002 .
2015-09-15Add a missing #include that's needed for call to FXSYS_tolower.David Lattimore
BUG= R=thestig@chromium.org Review URL: https://codereview.chromium.org/1329343002.
2015-09-11Convert some unneeded gotos into returns.Lei Zhang
R=tsepez@chromium.org Review URL: https://codereview.chromium.org/1332193002 .
2015-09-11Cleanup casting of FX_Alloc() return values.Lei Zhang
Also convert some FX_AllocOrDie() calls to FX_Alloc(). R=tsepez@chromium.org Review URL: https://codereview.chromium.org/1332173002 .
2015-09-10Guard against null image data in CJBig2_GRRDProc.chromium/2509chromium/2508Lei Zhang
Credit to karl at skomski.com for the initial version of the CL. BUG=527174 R=tsepez@chromium.org Review URL: https://codereview.chromium.org/1305033006 .
2015-09-10Remove CJBig2_Object, CJBig2_Module, and friends.Lei Zhang
R=tsepez@chromium.org Review URL: https://codereview.chromium.org/1326953006 .
2015-09-08Remove unneeded checks for CPDF_Object::GetDict() return values.Lei Zhang
CPDF_Object::GetDict() always returns a valid pointer for dictionaries. R=tsepez@chromium.org Review URL: https://codereview.chromium.org/1317733007 .
2015-09-04Fix typos, nits and remove dead code in fpdf_text_int.cpp.Lei Zhang
R=tsepez@chromium.org Review URL: https://codereview.chromium.org/1316643004 .
2015-09-03Remove CJBig2_Module::JBig2_Error and friends.Lei Zhang
R=tsepez@chromium.org Review URL: https://codereview.chromium.org/1327983003 .
2015-09-03Make a bunch of JBig2 classes independent of CJBig2_Object.Lei Zhang
R=tsepez@chromium.org Review URL: https://codereview.chromium.org/1319713003 .
2015-09-03Turn a failing assert into an actual check.chromium/2506chromium/2505chromium/2504chromium/2503chromium/2502chromium/2501Lei Zhang
BUG=522131 R=tsepez@chromium.org Review URL: https://codereview.chromium.org/1327913002 .
2015-09-02Remove dead JBig2 code.Lei Zhang
R=tsepez@chromium.org Review URL: https://codereview.chromium.org/1328643002 .
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