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 --- core/fxge/agg/fx_agg_driver.cpp | 2 ++ core/fxge/agg/fx_agg_driver.h | 2 ++ 2 files changed, 4 insertions(+) (limited to 'core/fxge/agg') diff --git a/core/fxge/agg/fx_agg_driver.cpp b/core/fxge/agg/fx_agg_driver.cpp index bb3d7af400..9db10ac3c6 100644 --- a/core/fxge/agg/fx_agg_driver.cpp +++ b/core/fxge/agg/fx_agg_driver.cpp @@ -13,6 +13,7 @@ #include "core/fxge/dib/dib_int.h" #include "core/fxge/ge/cfx_cliprgn.h" #include "core/fxge/ge/fx_text_int.h" +#include "core/fxge/include/cfx_fontcache.h" #include "core/fxge/include/cfx_fxgedevice.h" #include "core/fxge/include/cfx_gemodule.h" #include "core/fxge/include/cfx_graphstatedata.h" @@ -458,6 +459,7 @@ void CFX_AggDeviceDriver::DestroyPlatform() {} FX_BOOL CFX_AggDeviceDriver::DrawDeviceText(int nChars, const FXTEXT_CHARPOS* pCharPos, CFX_Font* pFont, + CFX_FontCache* pCache, const CFX_Matrix* pObject2Device, FX_FLOAT font_size, uint32_t color) { diff --git a/core/fxge/agg/fx_agg_driver.h b/core/fxge/agg/fx_agg_driver.h index 47ae470cc1..db6807cb3d 100644 --- a/core/fxge/agg/fx_agg_driver.h +++ b/core/fxge/agg/fx_agg_driver.h @@ -16,6 +16,7 @@ #include "third_party/agg23/agg_rasterizer_scanline_aa.h" class CFX_ClipRgn; +class CFX_FontCache; class CFX_GraphStateData; class CFX_Matrix; class CFX_PathData; @@ -92,6 +93,7 @@ class CFX_AggDeviceDriver : public IFX_RenderDeviceDriver { FX_BOOL DrawDeviceText(int nChars, const FXTEXT_CHARPOS* pCharPos, CFX_Font* pFont, + CFX_FontCache* pCache, const CFX_Matrix* pObject2Device, FX_FLOAT font_size, uint32_t color) override; -- cgit v1.2.3