gfx/layers/composite/ThebesLayerComposite.h@97036ab72558 (annotated)
gfx/layers/composite/ThebesLayerComposite.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 GFX_ThebesLayerComposite_H |
| michael@0 | 7 | #define GFX_ThebesLayerComposite_H |
| michael@0 | 8 | |
| michael@0 | 9 | #include "Layers.h" // for Layer (ptr only), etc |
| michael@0 | 10 | #include "gfxRect.h" // for gfxRect |
| michael@0 | 11 | #include "mozilla/Attributes.h" // for MOZ_OVERRIDE |
| michael@0 | 12 | #include "mozilla/RefPtr.h" // for RefPtr |
| michael@0 | 13 | #include "mozilla/layers/LayerManagerComposite.h" // for LayerComposite, etc |
| michael@0 | 14 | #include "mozilla/layers/LayersTypes.h" // for LayerRenderState, etc |
| michael@0 | 15 | #include "nsDebug.h" // for NS_RUNTIMEABORT |
| michael@0 | 16 | #include "nsRegion.h" // for nsIntRegion |
| michael@0 | 17 | #include "nscore.h" // for nsACString |
| michael@0 | 18 | |
| michael@0 | 19 | struct nsIntPoint; |
| michael@0 | 20 | struct nsIntRect; |
| michael@0 | 21 | |
| michael@0 | 22 | |
| michael@0 | 23 | namespace mozilla { |
| michael@0 | 24 | namespace layers { |
| michael@0 | 25 | |
| michael@0 | 26 | /** |
| michael@0 | 27 | * Thebes layers use ContentHosts for their compsositable host. |
| michael@0 | 28 | * By using different ContentHosts, ThebesLayerComposite support tiled and |
| michael@0 | 29 | * non-tiled Thebes layers and single or double buffering. |
| michael@0 | 30 | */ |
| michael@0 | 31 | |
| michael@0 | 32 | class CompositableHost; |
| michael@0 | 33 | class ContentHost; |
| michael@0 | 34 | class TiledLayerComposer; |
| michael@0 | 35 | |
| michael@0 | 36 | class ThebesLayerComposite : public ThebesLayer, |
| michael@0 | 37 | public LayerComposite |
| michael@0 | 38 | { |
| michael@0 | 39 | public: |
| michael@0 | 40 | ThebesLayerComposite(LayerManagerComposite *aManager); |
| michael@0 | 41 | virtual ~ThebesLayerComposite(); |
| michael@0 | 42 | |
| michael@0 | 43 | virtual void Disconnect() MOZ_OVERRIDE; |
| michael@0 | 44 | |
| michael@0 | 45 | virtual LayerRenderState GetRenderState() MOZ_OVERRIDE; |
| michael@0 | 46 | |
| michael@0 | 47 | CompositableHost* GetCompositableHost() MOZ_OVERRIDE; |
| michael@0 | 48 | |
| michael@0 | 49 | virtual void Destroy() MOZ_OVERRIDE; |
| michael@0 | 50 | |
| michael@0 | 51 | virtual Layer* GetLayer() MOZ_OVERRIDE; |
| michael@0 | 52 | |
| michael@0 | 53 | virtual TiledLayerComposer* GetTiledLayerComposer() MOZ_OVERRIDE; |
| michael@0 | 54 | |
| michael@0 | 55 | virtual void RenderLayer(const nsIntRect& aClipRect) MOZ_OVERRIDE; |
| michael@0 | 56 | |
| michael@0 | 57 | virtual void CleanupResources() MOZ_OVERRIDE; |
| michael@0 | 58 | |
| michael@0 | 59 | virtual bool SetCompositableHost(CompositableHost* aHost) MOZ_OVERRIDE; |
| michael@0 | 60 | |
| michael@0 | 61 | virtual LayerComposite* AsLayerComposite() MOZ_OVERRIDE { return this; } |
| michael@0 | 62 | |
| michael@0 | 63 | void EnsureTiled() { mRequiresTiledProperties = true; } |
| michael@0 | 64 | |
| michael@0 | 65 | virtual void InvalidateRegion(const nsIntRegion& aRegion) |
| michael@0 | 66 | { |
| michael@0 | 67 | NS_RUNTIMEABORT("ThebesLayerComposites can't fill invalidated regions"); |
| michael@0 | 68 | } |
| michael@0 | 69 | |
| michael@0 | 70 | void SetValidRegion(const nsIntRegion& aRegion) |
| michael@0 | 71 | { |
| michael@0 | 72 | MOZ_LAYERS_LOG_IF_SHADOWABLE(this, ("Layer::Mutated(%p) ValidRegion", this)); |
| michael@0 | 73 | mValidRegion = aRegion; |
| michael@0 | 74 | Mutated(); |
| michael@0 | 75 | } |
| michael@0 | 76 | |
| michael@0 | 77 | MOZ_LAYER_DECL_NAME("ThebesLayerComposite", TYPE_THEBES) |
| michael@0 | 78 | |
| michael@0 | 79 | protected: |
| michael@0 | 80 | |
| michael@0 | 81 | virtual nsACString& PrintInfo(nsACString& aTo, const char* aPrefix) MOZ_OVERRIDE; |
| michael@0 | 82 | |
| michael@0 | 83 | private: |
| michael@0 | 84 | CSSToScreenScale GetEffectiveResolution(); |
| michael@0 | 85 | |
| michael@0 | 86 | RefPtr<ContentHost> mBuffer; |
| michael@0 | 87 | bool mRequiresTiledProperties; |
| michael@0 | 88 | }; |
| michael@0 | 89 | |
| michael@0 | 90 | } /* layers */ |
| michael@0 | 91 | } /* mozilla */ |
| michael@0 | 92 | #endif /* GFX_ThebesLayerComposite_H */ |
