cc/output/output_surface_client.h

   1 // Copyright 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 CC_OUTPUT_OUTPUT_SURFACE_CLIENT_H_
   6 #define CC_OUTPUT_OUTPUT_SURFACE_CLIENT_H_
   7
   8 #include "base/callback.h"
   9 #include "base/memory/ref_counted.h"
  10 #include "base/time/time.h"
  11 #include "cc/base/cc_export.h"
  12 #include "cc/output/begin_frame_args.h"
  13 #include "cc/output/context_provider.h"
  14 #include "ui/gfx/rect.h"
  15
  16 namespace gfx {
  17 class Transform;
  18 }
  19
  20 namespace cc {
  21
  22 class CompositorFrameAck;
  23 struct ManagedMemoryPolicy;
  24
  25 class CC_EXPORT OutputSurfaceClient {
  26  public:
  27   // Called to synchronously re-initialize using the Context3D. Upon returning
  28   // the compositor should be able to draw using GL what was previously
  29   // committed.
  30   virtual bool DeferredInitialize(
  31       scoped_refptr<ContextProvider> offscreen_context_provider) = 0;
  32   virtual void ReleaseGL() = 0;
  33   virtual void SetNeedsRedrawRect(gfx::Rect damage_rect) = 0;
  34   virtual void BeginImplFrame(const BeginFrameArgs& args) = 0;
  35   virtual void OnSwapBuffersComplete() = 0;
  36   virtual void ReclaimResources(const CompositorFrameAck* ack) = 0;
  37   virtual void DidLoseOutputSurface() = 0;
  38   virtual void SetExternalDrawConstraints(const gfx::Transform& transform,
  39                                           gfx::Rect viewport,
  40                                           gfx::Rect clip,
  41                                           bool valid_for_tile_management) = 0;
  42   virtual void SetMemoryPolicy(const ManagedMemoryPolicy& policy) = 0;
  43   // If set, |callback| will be called subsequent to each new tree activation,
  44   // regardless of the compositor visibility or damage. |callback| must remain
  45   // valid for the lifetime of the OutputSurfaceClient or until unregisted --
  46   // use SetTreeActivationCallback(base::Closure()) to unregister it.
  47   virtual void SetTreeActivationCallback(const base::Closure& callback) = 0;
  48
  49  protected:
  50   virtual ~OutputSurfaceClient() {}
  51 };
  52
  53 }  // namespace cc
  54
  55 #endif  // CC_OUTPUT_OUTPUT_SURFACE_CLIENT_H_