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/context_provider.h"
  13 #include "ui/gfx/geometry/rect.h"
  14
  15 namespace gfx {
  16 class Transform;
  17 }
  18
  19 namespace cc {
  20
  21 class CompositorFrameAck;
  22 struct ManagedMemoryPolicy;
  23
  24 class CC_EXPORT OutputSurfaceClient {
  25  public:
  26   virtual void CommitVSyncParameters(base::TimeTicks timebase,
  27                                      base::TimeDelta interval) = 0;
  28   virtual void SetNeedsRedrawRect(const gfx::Rect& damage_rect) = 0;
  29   virtual void DidSwapBuffers() = 0;
  30   virtual void DidSwapBuffersComplete() = 0;
  31   virtual void ReclaimResources(const CompositorFrameAck* ack) = 0;
  32   virtual void DidLoseOutputSurface() = 0;
  33   virtual void SetExternalDrawConstraints(
  34       const gfx::Transform& transform,
  35       const gfx::Rect& viewport,
  36       const gfx::Rect& clip,
  37       const gfx::Rect& viewport_rect_for_tile_priority,
  38       const gfx::Transform& transform_for_tile_priority,
  39       bool resourceless_software_draw) = 0;
  40   virtual void SetMemoryPolicy(const ManagedMemoryPolicy& policy) = 0;
  41   // If set, |callback| will be called subsequent to each new tree activation,
  42   // regardless of the compositor visibility or damage. |callback| must remain
  43   // valid for the lifetime of the OutputSurfaceClient or until unregisted --
  44   // use SetTreeActivationCallback(base::Closure()) to unregister it.
  45   virtual void SetTreeActivationCallback(const base::Closure& callback) = 0;
  46   // This allows the output surface to ask it's client for a draw.
  47   virtual void OnDraw() = 0;
  48
  49  protected:
  50   virtual ~OutputSurfaceClient() {}
  51 };
  52
  53 }  // namespace cc
  54
  55 #endif  // CC_OUTPUT_OUTPUT_SURFACE_CLIENT_H_