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authordsinclair <dsinclair@chromium.org>2016-09-19 08:37:10 -0700
committerCommit bot <commit-bot@chromium.org>2016-09-19 08:37:10 -0700
commitc48089977dc4d2a63d37e6668382c10b42e22a72 (patch)
tree931e8a2f17d997e55c9bead576f7f672196844c0 /core/fxge/win32
parentea3c3be83dae12ef682c68fc7cf906d790fd9f84 (diff)
downloadpdfium-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 'core/fxge/win32')
-rw-r--r--core/fxge/win32/fx_win32_print.cpp2
-rw-r--r--core/fxge/win32/win32_int.h2
2 files changed, 4 insertions, 0 deletions
diff --git a/core/fxge/win32/fx_win32_print.cpp b/core/fxge/win32/fx_win32_print.cpp
index 2a52a60ce6..bc5bb92d5e 100644
--- a/core/fxge/win32/fx_win32_print.cpp
+++ b/core/fxge/win32/fx_win32_print.cpp
@@ -14,6 +14,7 @@
#include "core/fxge/dib/dib_int.h"
#include "core/fxge/ge/fx_text_int.h"
+#include "core/fxge/include/cfx_fontcache.h"
#include "core/fxge/include/cfx_renderdevice.h"
#include "core/fxge/include/cfx_windowsdevice.h"
#include "core/fxge/include/fx_freetype.h"
@@ -198,6 +199,7 @@ FX_BOOL CGdiPrinterDriver::StartDIBits(const CFX_DIBSource* pSource,
FX_BOOL CGdiPrinterDriver::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/win32/win32_int.h b/core/fxge/win32/win32_int.h
index 7e35793675..8c3443b3fd 100644
--- a/core/fxge/win32/win32_int.h
+++ b/core/fxge/win32/win32_int.h
@@ -11,6 +11,7 @@
#include "core/fxge/include/ifx_renderdevicedriver.h"
#include "core/fxge/win32/dwrite_int.h"
+class CFX_FontCache;
struct FXTEXT_CHARPOS;
struct WINDIB_Open_Args_;
@@ -245,6 +246,7 @@ class CGdiPrinterDriver : public CGdiDeviceDriver {
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;