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2014-12-08Replace manual/error-prone/hard-to-verify arraysize calculations with safe ↵Bruce Dawson
FX_ArraySize macro. pdfium has numerous places where the number of elements in an array is calculated with expressions like: sizeof(cFormats)/sizeof(FX_LPCWSTR) This is suboptimal because it is verbose, it is easy to get wrong, and it cannot be determined through casual inspection whether the code is correct. It will give incorrect results if cFormats is a pointer instead of an array and it will give incorrect results if FX_LPCWSTR is not the type of the array elements. The FX_WSTRC macro in fx_string.h which I fixed was particularly scary because it would silently misbehave if passed a pointer. The FX_ArraySize macro which I have added and started using (taken from arraysize in v8's macros.h) is easier to use and will always give correct results. If passed a pointer it will fail to compile. For this change I only fixed instances of sizeof(FX_LPCWSTR). There appear to be about 150 other places in the pdfium code that could benefit from using FX_ArraySize. R=bo_xu@foxitsoftware.com, tsepez@chromium.org Review URL: https://codereview.chromium.org/729293003
2014-12-08Getting rid of more (FX_LPCWSTR) casts and fixing two bugs revealed by this.Bruce Dawson
Since casts to FX_LPCWSTR have been shown to hide bugs I tried removing more of them, targeting those places where a cast was used to force a conversion from CFX_WideString to FX_LPCWSTR, replacing these casts with calls to the newly added .c_str() function. This revealed two places where the cast was hiding a bug -- where ->c_str() was required instead! This removes ~33 FX_LPCWSTR casts and there are ~31 left, many of which will go away in some future change. Also includes this change: Removing unnecessary casts from wchar_t* to wchar_t*, by various names. Original patch from Bruce Dawson(brucedawson@chromium.org) R=bo_xu@foxitsoftware.com, tsepez@chromium.org Review URL: https://codereview.chromium.org/733693003
2014-12-03Cleanup: Remove an unused function.Lei Zhang
R=bo_xu@foxitsoftware.com Review URL: https://codereview.chromium.org/775903002
2014-11-24Update to openjpeg r2944Bo Xu
BUG=429139,430566,431288 R=tsepez@chromium.org Review URL: https://codereview.chromium.org/758593002
2014-11-19Fix blank page issues caused by too strict checkchromium/2250chromium/2249chromium/2248chromium/2247chromium/2246chromium/2245chromium/2244chromium/2243chromium/2242chromium/2241chromium/2240chromium/2239chromium/2238chromium/2237Jun Fang
Before this fix, PDF parser aborts the parsering process when detecting an error. For this case, PDF parser just gives up parsering when it detects that the length of image stream is incorrect. The solution to this case is to find the tag "endstream" and "endobj" to calculate the length rather than aborting the parsering process. BUG=433339 R=tsepez@chromium.org Review URL: https://codereview.chromium.org/743263002
2014-11-18Fixed crash on NULL de-referencing.Vitaly Buka
BUG=433992 R=bo_xu@foxitsoftware.com Review URL: https://codereview.chromium.org/733273002
2014-11-18Fixing operator so that bCheckRight isn't always true. Unknown effect!Bruce Dawson
VC++'s /analyze points out that this expression: FX_BOOL bCheckRight = type != 'D' || type != 'W';" is always true. This means that the tests for the right edge of a word Original patch from Bruce Dawson(brucedawson@chromium.org) BUG=427616 R=jun_fang@foxitsoftware.com Review URL: https://codereview.chromium.org/731673003
2014-11-18Fixing format strings to remove 'z' size specifier.Bruce Dawson
As of the 2013 version VC++ still doesn't support the 'z' size specifier. This makes portable printing of size_t types frustrating. The simplest general solution is to use %u and cast to unsigned. If there was any possibility of the numbers getting larger than 32-bit then we would need better alternatives, but there is not. This was found through code inspection, through /analyze, and through pdfium_test print this non-helpful message: Loaded, parsed and rendered zu pages. Skipped zu bad pages. I can confirm that the fix works on Windows and it should work identically on mac. This is a follow-on to change 02e6ca4c4f. R=tsepez@chromium.org Review URL: https://codereview.chromium.org/738433003
2014-11-17Removing unnecessary casts from wchar_t* to wchar_t*, by various names.Bruce Dawson
Remove casts that merely cast from wchar_t* to wchar_t*. Sometimes the types or casts are FX_LPCWSTR but the idea is the same. Excess casts can (and have) hidden bugs so removing these may prevent future problems. Original patch from Bruce Dawson(brucedawson@chromium.org) R=bo_xu@foxitsoftware.com, tsepez@chromium.org Review URL: https://codereview.chromium.org/730993002
2014-11-17Zero initialize ch to avoid possible bug - conditions are very subtle.Bruce Dawson
Whether ch and iRet are read without being initialized depends on complex preconditions and cannot be determined by looking at these function. Therefore it seems prudent to zero initialize them to avoid any risk. BUG=427616 R=bo_xu@foxitsoftware.com Review URL: https://codereview.chromium.org/727083002
2014-11-14Remove FX_LPCWSTR cast to wchar_t* literalsBo Xu
BUG=https://code.google.com/p/pdfium/issues/detail?id=78 R=tsepez@chromium.org Review URL: https://codereview.chromium.org/726143002
2014-11-14Fix build warning on android under stricter compilation rules.Tom Sepez
Error is "converting to non-pointer type 'FX_DWORD'". TBR=bo_xu@foxitsoftware.com Review URL: https://codereview.chromium.org/726033002
2014-11-10Fix a bug when performing StretchDIBits on bit maskBo Xu
BUG=401988 R=vitalybuka@chromium.org Review URL: https://codereview.chromium.org/618073003
2014-11-06Fix bug with reading from uninitialized variable found by VC++'s /analyze.Tom Sepez
The flag variable is conditionally initialized but unconditionally read. Warning was: src\fpdfapi\fpdf_page\fpdf_page_pattern.cpp(274) : warning C6001: Using uninitialized memory 'flag'. BUG=427616 R=tsepez@chromium.org Review URL: https://codereview.chromium.org/703213004
2014-10-30Undo an old change in freetype to account for size of USHORTBo Xu
BUG=418582 R=tsepez@chromium.org Review URL: https://codereview.chromium.org/680833006
2014-10-30Update openjpeg to r2920Bo Xu
BUG=414036, 425151 R=tsepez@chromium.org Review URL: https://codereview.chromium.org/688633003
2014-10-29Resolve compilation error with G++ 4.9.Tom Sepez
Add a check for zero-length keys to avoid hitting the equivalent of |""[1]|. BUG=https://code.google.com/p/pdfium/issues/detail?id=58 R=jun_fang@foxitsoftware.com Review URL: https://codereview.chromium.org/665223003
2014-10-22update openjpeg to r2911Bo Xu
BUG=418976, 425150, 414525 R=tsepez@chromium.org Review URL: https://codereview.chromium.org/671943002
2014-10-21Change the clear order of pDocPage and pDocRenderBo Xu
pTransfer function is released in pDocRender cleanup but is still being accessed in ~CPDF_GeneralStateData in pDocPage cleanup. BUG=419320 R=tsepez@chromium.org Review URL: https://codereview.chromium.org/662063003
2014-10-21Update openjpeg to r2908chromium/2202chromium/2201chromium/2200chromium/2199chromium/2198chromium/2197Bo Xu
BUG=414089, 414310, 414606 R=tsepez@chromium.org Review URL: https://codereview.chromium.org/670813002
2014-10-21More fixes in sycc422_to_rgb and sycc420_to_rgb when image width is oddBo Xu
This patch is supplementary to issue 418881 R=tsepez@chromium.org Review URL: https://codereview.chromium.org/645793007
2014-10-21Add missing parenthesis in FXARGB_GETDIB macroBo Xu
You can get warning when using FXARGB_GETDIB() with & operation in the same statement like: FXARGB_GETDIB(src_scan) & 0xffffff in fx_dib_composite.cpp: ../../third_party/pdfium/core/src/fxge/dib/fx_dib_composite.cpp:737:205: error: '&' within '|' [-Werror,-Wbitwise-op-parentheses] Original patch from jiangj@opera.com R=thakis@chromium.org Review URL: https://codereview.chromium.org/578253002
2014-10-15Fix licenses in headers to pass Chromium's checklicenses tool.chromium/2196chromium/2195chromium/2194chromium/2193chromium/2192chromium/2191Tom Sepez
This is a re-landing of the changes in https://pdfium.googlesource.com/pdfium/+/6387aff which were lost during a libopenjpeg library roll. TBR=thestig@chromium.org Review URL: https://codereview.chromium.org/661463003
2014-10-14Store the address of the page data map's value for proper referencing.Bo Xu
CPDF_Pattern objects are counted and maintained in m_PatternedMap. When a CPDF_Pattern object "pattern" is deleted, it's address is marked as NULL in m_PatternMap. This patch stores the address of CPDF_Pattern's adderss in all objects that references "pattern", to ensure valid referencing after deletion. BUG=416319, 419976, 418392 R=tsepez@chromium.org Review URL: https://codereview.chromium.org/656753002
2014-10-14Don't leave dangling pointer to out-of-scope local in ↵Tom Sepez
CPDF_StreamContentParser::Parse. This is just a bit of defensive programming; I'm not sure the situation can occur in the current code, but the following code is likely to set off a red flag to anyone who reads it: CPDF_StreamParser syntax(pData, dwSize); m_pSyntax = &syntax; since the extent of the local |syntax| is far less than the pointer member |m_pSyntax|. NULL it out before syntax goes out of scope. R=jun_fang@foxitsoftware.com Review URL: https://codereview.chromium.org/652063002
2014-10-14Glyph index is out of range in cff_get_glyph_name.Jun Fang
Glyph index shall be less than number of glyphs. BUG=418585 R=tsepez@chromium.org Review URL: https://codereview.chromium.org/652363002
2014-10-13Fix off-by-one in sizing of m_EmbeddedToUnicodes.Tom Sepez
BUG=421196 R=bo_xu@foxitsoftware.com Review URL: https://codereview.chromium.org/656463006
2014-10-10Fix a bug when image width is odd in sycc422_to_rgbBo Xu
BUG=418881 R=tsepez@chromium.org Review URL: https://codereview.chromium.org/648823002
2014-10-03check pointer overflow in t2.cBo Xu
BUG=413375 R=tsepez@chromium.org Review URL: https://codereview.chromium.org/624023003
2014-09-30Update openjpegBo Xu
BUG=407964, 414182, 413447 R=tsepez@chromium.org Review URL: https://codereview.chromium.org/589243004
2014-09-19Fix a bug when assign the generation number of indirect objectschromium/2166chromium/2165Bo Xu
BUG=408532 R=tsepez@chromium.org Review URL: https://codereview.chromium.org/524443002
2014-09-19Adjust the order of clearing resource in CPDF_DocPageData::ClearJun Fang
Images are basic resource and are referred or used by other objects in some cases. Images should be released after the objects who uses these objects. In this case, an image object is accessed in the process of CPDF_TilingPattern's destroy. Unlikely, this image has been destroyed before. BUG=414046 R=tsepez@chromium.org Review URL: https://codereview.chromium.org/582993002
2014-09-18Fix Regression: Incomplete file loading is seen for multi page pdf files.chromium/2164chromium/2163Tom Sepez
This was introduced at PDFium revision 12a9940. There was a subtle logic change for null |parray|. BUG=415438 R=jun_fang@foxitsoftware.com Review URL: https://codereview.chromium.org/579363002
2014-09-16When forcing clear page data, no need to release colorspace when releasing ↵Bo Xu
pattern BUG=414661 R=tsepez@chromium.org Review URL: https://codereview.chromium.org/572853006
2014-09-15Add a boundary check before accessing the table of 'Index to Location'Jun Fang
Before this fix, only |gindex < face->num_locations| is checked. However, the pointer, p, will be moved to next location in the first FT_NEXT_ULONG or FT_NEXT_USHORT. It may cause a crashier. So a boundary check is needed before the second FT_NEXT_ULONG or FT_NEXT_USHORT. BUG=412457 R=tsepez@chromium.org Review URL: https://codereview.chromium.org/571833002
2014-09-15Check Null pointer in CPDF_Dictionary::GetUnicodeTextBo Xu
BUG=414155 R=thakis@chromium.org Review URL: https://codereview.chromium.org/574463002
2014-09-11Fix hebrew character highlight issue in a special documentBo Xu
There is an image object and text objects in this document, but the character in each text object is reversed. When rendering, the image object is shown. However, when highlighting, the text object is selected, resulting in text index issue. Moreover, the character in the document is in reading order, which is different from normal document. BUG=pdfium:43 R=jbreiden@google.com Review URL: https://codereview.chromium.org/484503002
2014-09-10Check object type for objects used in the dictory of 'Index'chromium/2162chromium/2161chromium/2160chromium/2159chromium/2158chromium/2157chromium/2156Jun Fang
BUG=387970 R=tsepez@chromium.org Review URL: https://codereview.chromium.org/551503003
2014-09-09Change the forced clear order of CPDF_DocPageData::Clear, and remove ↵Bo Xu
m_pDocument in CPDF_Color If not forced clear, the counter of CPDF_Pattern will take care the count of referenced instance. When forced clear, clear color first to make sure pattern still exists when referencing it. BUG=411154 R=tsepez@chromium.org Review URL: https://codereview.chromium.org/554913003
2014-09-09Fix uninitialized value in CPDF_ColorStateDataBo Xu
BUG=411161 R=tsepez@chromium.org Review URL: https://codereview.chromium.org/560673002
2014-09-09Revert of Fix uninitialized value in CPDF_ColorStateData (patchset #1 id:1 ↵Bo Xu
of https://codereview.chromium.org/547863002/) Reason for revert: The initialized member variable is wrong. Needs to undo this. Original issue's description: > Fix uninitialized value in CPDF_ColorStateData > > BUG=411161 > R=tsepez@chromium.org > > Committed: https://pdfium.googlesource.com/pdfium/+/a38d4c3572b566f8e64b9ca4f725cbbc581e85ab TBR=tsepez@chromium.org,jun_fang@foxitsoftware.com NOTREECHECKS=true NOTRY=true BUG=411161 Review URL: https://codereview.chromium.org/558803004
2014-09-08Fix uninitialized value in CPDF_ColorStateDataBo Xu
BUG=411161 R=tsepez@chromium.org Review URL: https://codereview.chromium.org/547863002
2014-09-08Fix un-initialized R G B valueBo Xu
BUG=411163 R=tsepez@chromium.org Review URL: https://codereview.chromium.org/551513005
2014-09-08Merge performance fix for cmsDupToneCurve from previous upstream branch.Chris Palmer
BUG= R=jun_fang@foxitsoftware.com Review URL: https://codereview.chromium.org/534363002
2014-09-03Allocate m_pCompData when |m_nComponents| is updated.Bo Xu
When |m_nComponents| is changed from loading stream information, previously allocated memory that depends on |m_nComponents| needes to be freed and allocated again to enforce memory size consistency. BUG=409695 R=tsepez@chromium.org Review URL: https://codereview.chromium.org/528163002
2014-09-02Check m_nComponents when using JBIG2Decodechromium/2146Bo Xu
BUG=409692 R=tsepez@chromium.org Review URL: https://codereview.chromium.org/534763002
2014-09-02Add m_pDocument in CPDF_Color and check if page date has been forced clearBo Xu
This will prevent using freed pattern object. This is a better solution than https://pdfium.googlesource.com/pdfium/+/1b9c5c4dc41956b8c5ab17b9a882adf8a2513768 and in essence revert that patch BUG=409373 R=tsepez@chromium.org Review URL: https://codereview.chromium.org/522483003
2014-09-02Tidy up opj_ callback functions in fx_codec_jpx_obj.cppTom Sepez
This is code cleanup rather than bug fixing. The motivation for this was to fix the casts at line 97 of the original file. These are wrong; you cannot correct via casting a function signature mismatch when passing a function as an argument. In theory, there's no reason to believe that the compiler will pass args in the same manner for a function of type (void*, size_t, void*) as for a function of type (void*, size_t, some_struct*). The cast will suppress the compile error, but you can't be assured the call will work as intended. In practice, it does, since the last architecture where a void* had a different representation than a struct* went extinct in the late 80s. In the functions themselves, note that we currently bail out if srcData->offset >= srcData->src_size, so the expression bufferLength = (OPJ_SIZE_T)(srcData->src_size - srcData->offset) will always be > 0. Hence the check if(bufferLength <= 0) is pointless, esp. since bufferLength is a signed type and < 0 makes no sense. The opj_seek_from_memory() has a bool return value, so returning -1 on error doesn't seem reasonable. Change this to TRUE/FALSE, and return false on seek past end. If we're truly passing readonly data, then perhaps it makes sense to make the write() function always return -1. I didn't do this. Lastly, I capitalize "DecodeData" so that it looks like a struct, and change its members to be size_t's to avoid casting back and forth. R=jun_fang@foxitsoftware.com Review URL: https://codereview.chromium.org/507273003
2014-08-31Remove the GetValidBpc check in application callers and move it to where ↵Bo Xu
m_bpc is assigned. The problem of using GetValidBpc() in each function call is it could result in mismatch as seen in this case: in ContinueToLoadMask(), m_bpc is re-assigned to 1 if m_bImageMask==1 regardless of the value from GetValidBpc(). This will result in mismatch if another function use the value from GetValidBpc(). The solution could be checking m_bImageMask in another function to make sure m_bpc is consistent, but that makes the code too cumbersome. Also, we have to bring and are bringing in more and more GetValidBpc check, and this will continue with other buggy documents. So better to fix it now. The original rational to use GetValidBpc() in where m_bpc is used is to respect the "raw" data from parsing. However, if it will be ignored anyway and using value from GetValidBpc(), we'd better correct it at the very beginning. BUG=408541 R=tsepez@chromium.org Review URL: https://codereview.chromium.org/518443002
2014-08-28Remove unused fields and stack locals.Chris Palmer
Edge closer to getting PDFium to build in chromium_code mode. BUG=https://code.google.com/p/pdfium/issues/detail?id=29 R=bo_xu@foxitsoftware.com Review URL: https://codereview.chromium.org/437343002
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