1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef CONTENT_PUBLIC_BROWSER_ANDROID_COMPOSITOR_H_ 6 #define CONTENT_PUBLIC_BROWSER_ANDROID_COMPOSITOR_H_ 7 8 #include "base/callback.h" 9 #include "cc/resources/ui_resource_bitmap.h" 10 #include "content/common/content_export.h" 11 #include "content/public/browser/android/ui_resource_provider.h" 12 #include "ui/gfx/native_widget_types.h" 13 #include "ui/gfx/rect.h" 14 #include "ui/gfx/size.h" 15 16 class SkBitmap; 17 18 namespace cc { 19 class Layer; 20 } 21 22 namespace gfx { 23 class JavaBitmap; 24 } 25 26 namespace content { 27 class CompositorClient; 28 class UIResourceProvider; 29 30 // An interface to the browser-side compositor. 31 class CONTENT_EXPORT Compositor { 32 public: ~Compositor()33 virtual ~Compositor() {} 34 35 // Performs the global initialization needed before any compositor 36 // instance can be used. This should be called only once. 37 static void Initialize(); 38 39 // Creates and returns a compositor instance. |root_window| needs to outlive 40 // the compositor as it manages callbacks on the compositor. 41 static Compositor* Create(CompositorClient* client, 42 gfx::NativeWindow root_window); 43 44 // Attaches the layer tree. 45 virtual void SetRootLayer(scoped_refptr<cc::Layer> root) = 0; 46 47 // Set the scale factor from DIP to pixel. 48 virtual void setDeviceScaleFactor(float factor) = 0; 49 50 // Set the output surface bounds. 51 virtual void SetWindowBounds(const gfx::Size& size) = 0; 52 53 // Sets the window visibility. When becoming invisible, resources will get 54 // freed and other calls into the compositor are not allowed until after 55 // having been made visible again. 56 virtual void SetVisible(bool visible) = 0; 57 58 // Set the output surface handle which the compositor renders into. 59 // DEPRECATED: Use SetSurface() which takes a Java Surface object. 60 virtual void SetWindowSurface(ANativeWindow* window) = 0; 61 62 // Set the output surface which the compositor renders into. 63 virtual void SetSurface(jobject surface) = 0; 64 65 // Tells the view tree to assume a transparent background when rendering. 66 virtual void SetHasTransparentBackground(bool flag) = 0; 67 68 // Request layout and draw. You only need to call this if you need to trigger 69 // Composite *without* having modified the layer tree. 70 virtual void SetNeedsComposite() = 0; 71 72 // Returns the UI resource provider associated with the compositor. 73 virtual UIResourceProvider& GetUIResourceProvider() = 0; 74 75 protected: Compositor()76 Compositor() {} 77 }; 78 79 } // namespace content 80 81 #endif // CONTENT_PUBLIC_BROWSER_ANDROID_COMPOSITOR_H_ 82