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| author | dsinclair <dsinclair@chromium.org> | 2016-09-19 08:37:10 -0700 |
|---|---|---|
| committer | Commit bot <commit-bot@chromium.org> | 2016-09-19 08:37:10 -0700 |
| commit | c48089977dc4d2a63d37e6668382c10b42e22a72 (patch) | |
| tree | 931e8a2f17d997e55c9bead576f7f672196844c0 /xfa/fxbarcode/oned/BC_OnedEAN8Writer.cpp | |
| parent | ea3c3be83dae12ef682c68fc7cf906d790fd9f84 (diff) | |
| download | pdfium-c48089977dc4d2a63d37e6668382c10b42e22a72.tar.xz | |
Revert of Pdfium: Fix fonts leaking on ClosePage. (patchset #10 id:180001 of 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
Diffstat (limited to 'xfa/fxbarcode/oned/BC_OnedEAN8Writer.cpp')
| -rw-r--r-- | xfa/fxbarcode/oned/BC_OnedEAN8Writer.cpp | 16 |
1 files changed, 10 insertions, 6 deletions
diff --git a/xfa/fxbarcode/oned/BC_OnedEAN8Writer.cpp b/xfa/fxbarcode/oned/BC_OnedEAN8Writer.cpp index fb95f264a0..0a7f3a8a50 100644 --- a/xfa/fxbarcode/oned/BC_OnedEAN8Writer.cpp +++ b/xfa/fxbarcode/oned/BC_OnedEAN8Writer.cpp @@ -222,7 +222,8 @@ void CBC_OnedEAN8Writer::ShowChars(const CFX_WideStringC& contents, delete ge.GetBitmap(); ge.Create(strWidth, iTextHeight, FXDIB_Argb, nullptr); ge.GetBitmap()->Clear(m_backgroundColor); - ge.DrawNormalText(iLen, pCharPos, m_pFont, (FX_FLOAT)iFontSize, + ge.DrawNormalText(iLen, pCharPos, m_pFont, + CFX_GEModule::Get()->GetFontCache(), (FX_FLOAT)iFontSize, &affine_matrix, m_fontColor, FXTEXT_CLEARTYPE); geBitmap.SetDIBits(ge.GetBitmap(), leftPosition, m_Height - iTextHeight); } else { @@ -230,8 +231,9 @@ void CBC_OnedEAN8Writer::ShowChars(const CFX_WideStringC& contents, (FX_FLOAT)leftPosition * m_outputHScale, (FX_FLOAT)(m_Height - iTextHeight + iFontSize)); affine_matrix1.Concat(*matrix); - device->DrawNormalText(iLen, pCharPos, m_pFont, (FX_FLOAT)iFontSize, - &affine_matrix1, m_fontColor, FXTEXT_CLEARTYPE); + device->DrawNormalText( + iLen, pCharPos, m_pFont, CFX_GEModule::Get()->GetFontCache(), + (FX_FLOAT)iFontSize, &affine_matrix1, m_fontColor, FXTEXT_CLEARTYPE); } tempStr = str.Mid(4, 4); iLen = tempStr.GetLength(); @@ -241,7 +243,8 @@ void CBC_OnedEAN8Writer::ShowChars(const CFX_WideStringC& contents, delete ge.GetBitmap(); ge.Create(strWidth, iTextHeight, FXDIB_Argb, nullptr); ge.GetBitmap()->Clear(m_backgroundColor); - ge.DrawNormalText(iLen, pCharPos + 4, m_pFont, (FX_FLOAT)iFontSize, + ge.DrawNormalText(iLen, pCharPos + 4, m_pFont, + CFX_GEModule::Get()->GetFontCache(), (FX_FLOAT)iFontSize, &affine_matrix, m_fontColor, FXTEXT_CLEARTYPE); geBitmap.SetDIBits(ge.GetBitmap(), leftPosition + 33 * multiple, m_Height - iTextHeight); @@ -253,8 +256,9 @@ void CBC_OnedEAN8Writer::ShowChars(const CFX_WideStringC& contents, if (matrix) { affine_matrix1.Concat(*matrix); } - device->DrawNormalText(iLen, pCharPos + 4, m_pFont, (FX_FLOAT)iFontSize, - &affine_matrix1, m_fontColor, FXTEXT_CLEARTYPE); + device->DrawNormalText( + iLen, pCharPos + 4, m_pFont, CFX_GEModule::Get()->GetFontCache(), + (FX_FLOAT)iFontSize, &affine_matrix1, m_fontColor, FXTEXT_CLEARTYPE); } FX_Free(pCharPos); } |