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   // Called to synchronously re-initialize using the Context3D. Upon returning
  27   // the compositor should be able to draw using GL what was previously
  28   // committed.
  29   virtual void DeferredInitialize() = 0;
  30   // Must call OutputSurface::ReleaseContextProvider inside this call.
  31   virtual void ReleaseGL() = 0;
  32   virtual void CommitVSyncParameters(base::TimeTicks timebase,
  33                                      base::TimeDelta interval) = 0;
  34   virtual void SetNeedsRedrawRect(const gfx::Rect& damage_rect) = 0;
  35   virtual void DidSwapBuffers() = 0;
  36   virtual void DidSwapBuffersComplete() = 0;
  37   virtual void ReclaimResources(const CompositorFrameAck* ack) = 0;
  38   virtual void DidLoseOutputSurface() = 0;
  39   virtual void SetExternalDrawConstraints(
  40       const gfx::Transform& transform,
  41       const gfx::Rect& viewport,
  42       const gfx::Rect& clip,
  43       const gfx::Rect& viewport_rect_for_tile_priority,
  44       const gfx::Transform& transform_for_tile_priority,
  45       bool resourceless_software_draw) = 0;
  46   virtual void SetMemoryPolicy(const ManagedMemoryPolicy& policy) = 0;
  47   // If set, |callback| will be called subsequent to each new tree activation,
  48   // regardless of the compositor visibility or damage. |callback| must remain
  49   // valid for the lifetime of the OutputSurfaceClient or until unregisted --
  50   // use SetTreeActivationCallback(base::Closure()) to unregister it.
  51   virtual void SetTreeActivationCallback(const base::Closure& callback) = 0;
  52   // This allows the output surface to ask it's client for a draw.
  53   virtual void OnDraw() = 0;
  54
  55  protected:
  56   virtual ~OutputSurfaceClient() {}
  57 };
  58
  59 }  // namespace cc
  60
  61 #endif  // CC_OUTPUT_OUTPUT_SURFACE_CLIENT_H_