gfx/layers/composite/ImageHost.h

Tue, 06 Jan 2015 21:39:09 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Tue, 06 Jan 2015 21:39:09 +0100
branch
TOR_BUG_9701
changeset 8
97036ab72558
permissions
-rw-r--r--

Conditionally force memory storage according to privacy.thirdparty.isolate;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.

michael@0 1 /* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
michael@0 2 * This Source Code Form is subject to the terms of the Mozilla Public
michael@0 3 * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0 5
michael@0 6 #ifndef MOZILLA_GFX_IMAGEHOST_H
michael@0 7 #define MOZILLA_GFX_IMAGEHOST_H
michael@0 8
michael@0 9 #include <stdio.h> // for FILE
michael@0 10 #include "CompositableHost.h" // for CompositableHost
michael@0 11 #include "mozilla/Attributes.h" // for MOZ_OVERRIDE
michael@0 12 #include "mozilla/RefPtr.h" // for RefPtr
michael@0 13 #include "mozilla/gfx/Point.h" // for Point
michael@0 14 #include "mozilla/gfx/Rect.h" // for Rect
michael@0 15 #include "mozilla/gfx/Types.h" // for Filter
michael@0 16 #include "mozilla/layers/CompositorTypes.h" // for TextureInfo, etc
michael@0 17 #include "mozilla/layers/LayersSurfaces.h" // for SurfaceDescriptor
michael@0 18 #include "mozilla/layers/LayersTypes.h" // for LayerRenderState, etc
michael@0 19 #include "mozilla/layers/TextureHost.h" // for TextureHost, etc
michael@0 20 #include "mozilla/mozalloc.h" // for operator delete
michael@0 21 #include "nsCOMPtr.h" // for already_AddRefed
michael@0 22 #include "nsRect.h" // for nsIntRect
michael@0 23 #include "nscore.h" // for nsACString
michael@0 24
michael@0 25 class nsIntRegion;
michael@0 26
michael@0 27 namespace mozilla {
michael@0 28 namespace gfx {
michael@0 29 class Matrix4x4;
michael@0 30 }
michael@0 31 namespace layers {
michael@0 32
michael@0 33 class Compositor;
michael@0 34 class ISurfaceAllocator;
michael@0 35 struct EffectChain;
michael@0 36
michael@0 37 /**
michael@0 38 * ImageHost. Works with ImageClientSingle and ImageClientBuffered
michael@0 39 */
michael@0 40 class ImageHost : public CompositableHost
michael@0 41 {
michael@0 42 public:
michael@0 43 ImageHost(const TextureInfo& aTextureInfo);
michael@0 44 ~ImageHost();
michael@0 45
michael@0 46 virtual CompositableType GetType() { return mTextureInfo.mCompositableType; }
michael@0 47
michael@0 48 virtual void Composite(EffectChain& aEffectChain,
michael@0 49 float aOpacity,
michael@0 50 const gfx::Matrix4x4& aTransform,
michael@0 51 const gfx::Filter& aFilter,
michael@0 52 const gfx::Rect& aClipRect,
michael@0 53 const nsIntRegion* aVisibleRegion = nullptr,
michael@0 54 TiledLayerProperties* aLayerProperties = nullptr) MOZ_OVERRIDE;
michael@0 55
michael@0 56 virtual void UseTextureHost(TextureHost* aTexture) MOZ_OVERRIDE;
michael@0 57
michael@0 58 virtual void RemoveTextureHost(TextureHost* aTexture) MOZ_OVERRIDE;
michael@0 59
michael@0 60 virtual TextureHost* GetAsTextureHost() MOZ_OVERRIDE;
michael@0 61
michael@0 62 virtual void SetCompositor(Compositor* aCompositor) MOZ_OVERRIDE;
michael@0 63
michael@0 64 virtual void SetPictureRect(const nsIntRect& aPictureRect) MOZ_OVERRIDE
michael@0 65 {
michael@0 66 mPictureRect = aPictureRect;
michael@0 67 mHasPictureRect = true;
michael@0 68 }
michael@0 69
michael@0 70 virtual LayerRenderState GetRenderState() MOZ_OVERRIDE;
michael@0 71
michael@0 72 virtual void PrintInfo(nsACString& aTo, const char* aPrefix);
michael@0 73
michael@0 74 #ifdef MOZ_DUMP_PAINTING
michael@0 75 virtual void Dump(FILE* aFile = nullptr,
michael@0 76 const char* aPrefix = "",
michael@0 77 bool aDumpHtml = false) MOZ_OVERRIDE;
michael@0 78
michael@0 79 virtual TemporaryRef<gfx::DataSourceSurface> GetAsSurface() MOZ_OVERRIDE;
michael@0 80 #endif
michael@0 81
michael@0 82 protected:
michael@0 83
michael@0 84 RefPtr<TextureHost> mFrontBuffer;
michael@0 85 nsIntRect mPictureRect;
michael@0 86 bool mHasPictureRect;
michael@0 87 };
michael@0 88
michael@0 89 }
michael@0 90 }
michael@0 91
michael@0 92 #endif

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