From c48089977dc4d2a63d37e6668382c10b42e22a72 Mon Sep 17 00:00:00 2001 From: dsinclair Date: Mon, 19 Sep 2016 08:37:10 -0700 Subject: 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 --- xfa/fxbarcode/oned/BC_OnedUPCAWriter.cpp | 32 ++++++++++++++++++++------------ 1 file changed, 20 insertions(+), 12 deletions(-) (limited to 'xfa/fxbarcode/oned/BC_OnedUPCAWriter.cpp') diff --git a/xfa/fxbarcode/oned/BC_OnedUPCAWriter.cpp b/xfa/fxbarcode/oned/BC_OnedUPCAWriter.cpp index 12acb5280b..01660b75c7 100644 --- a/xfa/fxbarcode/oned/BC_OnedUPCAWriter.cpp +++ b/xfa/fxbarcode/oned/BC_OnedUPCAWriter.cpp @@ -190,7 +190,8 @@ void CBC_OnedUPCAWriter::ShowChars(const CFX_WideStringC& contents, if (pOutBitmap) { ge.Create((int)strWidth, iTextHeight, FXDIB_Argb, nullptr); ge.GetBitmap()->Clear(m_backgroundColor); - ge.DrawNormalText(iLen, pCharPos + 1, m_pFont, (FX_FLOAT)iFontSize, + ge.DrawNormalText(iLen, pCharPos + 1, m_pFont, + CFX_GEModule::Get()->GetFontCache(), (FX_FLOAT)iFontSize, &affine_matrix, m_fontColor, FXTEXT_CLEARTYPE); geBitmap.SetDIBits(ge.GetBitmap(), leftPosition, m_Height - iTextHeight); } else { @@ -200,8 +201,9 @@ void CBC_OnedUPCAWriter::ShowChars(const CFX_WideStringC& contents, if (matrix) { affine_matrix1.Concat(*matrix); } - device->DrawNormalText(iLen, pCharPos + 1, m_pFont, (FX_FLOAT)iFontSize, - &affine_matrix1, m_fontColor, FXTEXT_CLEARTYPE); + device->DrawNormalText( + iLen, pCharPos + 1, m_pFont, CFX_GEModule::Get()->GetFontCache(), + (FX_FLOAT)iFontSize, &affine_matrix1, m_fontColor, FXTEXT_CLEARTYPE); } tempStr = str.Mid(6, 5); iLen = tempStr.GetLength(); @@ -209,7 +211,8 @@ void CBC_OnedUPCAWriter::ShowChars(const CFX_WideStringC& contents, if (pOutBitmap) { FX_RECT rect2(0, 0, (int)strWidth, iTextHeight); ge.FillRect(&rect2, m_backgroundColor); - ge.DrawNormalText(iLen, pCharPos + 6, m_pFont, (FX_FLOAT)iFontSize, + ge.DrawNormalText(iLen, pCharPos + 6, m_pFont, + CFX_GEModule::Get()->GetFontCache(), (FX_FLOAT)iFontSize, &affine_matrix, m_fontColor, FXTEXT_CLEARTYPE); geBitmap.SetDIBits(ge.GetBitmap(), leftPosition + 40 * multiple, m_Height - iTextHeight); @@ -221,8 +224,9 @@ void CBC_OnedUPCAWriter::ShowChars(const CFX_WideStringC& contents, if (matrix) { affine_matrix1.Concat(*matrix); } - device->DrawNormalText(iLen, pCharPos + 6, m_pFont, (FX_FLOAT)iFontSize, - &affine_matrix1, m_fontColor, FXTEXT_CLEARTYPE); + device->DrawNormalText( + iLen, pCharPos + 6, m_pFont, CFX_GEModule::Get()->GetFontCache(), + (FX_FLOAT)iFontSize, &affine_matrix1, m_fontColor, FXTEXT_CLEARTYPE); } tempStr = str.Mid(0, 1); iLen = tempStr.GetLength(); @@ -235,7 +239,8 @@ void CBC_OnedUPCAWriter::ShowChars(const CFX_WideStringC& contents, delete ge.GetBitmap(); ge.Create((int)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(), 0, m_Height - iTextHeight); } else { @@ -244,8 +249,9 @@ void CBC_OnedUPCAWriter::ShowChars(const CFX_WideStringC& contents, if (matrix) { 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(11, 1); iLen = tempStr.GetLength(); @@ -254,7 +260,8 @@ void CBC_OnedUPCAWriter::ShowChars(const CFX_WideStringC& contents, delete ge.GetBitmap(); ge.Create((int)strWidth, iTextHeight, FXDIB_Argb, nullptr); ge.GetBitmap()->Clear(m_backgroundColor); - ge.DrawNormalText(iLen, pCharPos + 11, m_pFont, (FX_FLOAT)iFontSize, + ge.DrawNormalText(iLen, pCharPos + 11, m_pFont, + CFX_GEModule::Get()->GetFontCache(), (FX_FLOAT)iFontSize, &affine_matrix, m_fontColor, FXTEXT_CLEARTYPE); geBitmap.SetDIBits(ge.GetBitmap(), leftPosition + 85 * multiple, m_Height - iTextHeight); @@ -266,8 +273,9 @@ void CBC_OnedUPCAWriter::ShowChars(const CFX_WideStringC& contents, if (matrix) { affine_matrix1.Concat(*matrix); } - device->DrawNormalText(iLen, pCharPos + 11, m_pFont, (FX_FLOAT)iFontSize, - &affine_matrix1, m_fontColor, FXTEXT_CLEARTYPE); + device->DrawNormalText( + iLen, pCharPos + 11, m_pFont, CFX_GEModule::Get()->GetFontCache(), + (FX_FLOAT)iFontSize, &affine_matrix1, m_fontColor, FXTEXT_CLEARTYPE); } FX_Free(pCharPos); } -- cgit v1.2.3