From 9f3926df5c2828ad3e8cfce2b4444b1c84352cf4 Mon Sep 17 00:00:00 2001
From: Caolán McNamara <caolanm@redhat.com>
Date: Wed, 6 Feb 2019 13:46:24 +0000
Subject: tdf#123165 cache recently scaled bitmaps for reuse
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dropping the cached scaled bitmap when the bitmap
is accesed via BitmapAccessMode::Write for writing

Change-Id: Ib6539522944838238bd699ec3531039d21dc0f8b
Reviewed-on: https://gerrit.libreoffice.org/67459
Tested-by: Jenkins
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>
---
 vcl/inc/svdata.hxx | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'vcl/inc/svdata.hxx')

diff --git a/vcl/inc/svdata.hxx b/vcl/inc/svdata.hxx
index ea48d774ccca..08c1e5a66d77 100644
--- a/vcl/inc/svdata.hxx
+++ b/vcl/inc/svdata.hxx
@@ -22,6 +22,7 @@
 
 #include <config_version.h>
 
+#include <o3tl/lru_map.hxx>
 #include <tools/fldunit.hxx>
 #include <unotools/options.hxx>
 #include <vcl/bitmapex.hxx>
@@ -194,6 +195,7 @@ struct ImplSVGDIData
     std::unique_ptr<ImplPrnQueueList> mpPrinterQueueList;   // List of all printer queue
     std::shared_ptr<PhysicalFontCollection> mxScreenFontList; // Screen-Font-List
     std::shared_ptr<ImplFontCache> mxScreenFontCache;       // Screen-Font-Cache
+    o3tl::lru_map<SalBitmap*, BitmapEx> maScaleCache = o3tl::lru_map<SalBitmap*, BitmapEx>(10); // Cache for scaled images
     ImplDirectFontSubstitution* mpDirectFontSubst = nullptr; // Font-Substitutions defined in Tools->Options->Fonts
     GraphicConverter*       mpGrfConverter = nullptr;       // Converter for graphics
     long                    mnAppFontX = 0;                 // AppFont X-Numenator for 40/tel Width
-- 
cgit