gpu/command_buffer/client/context_support.h

   1 // Copyright 2013 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 GPU_COMMAND_BUFFER_CLIENT_CONTEXT_SUPPORT_H_
   6 #define GPU_COMMAND_BUFFER_CLIENT_CONTEXT_SUPPORT_H_
   7
   8 #include "base/callback.h"
   9 #include "ui/gfx/geometry/rect.h"
  10 #include "ui/gfx/overlay_transform.h"
  11
  12 namespace gpu {
  13
  14 class ContextSupport {
  15  public:
  16   // Runs |callback| when a sync point is reached.
  17   virtual void SignalSyncPoint(uint32 sync_point,
  18                                const base::Closure& callback) = 0;
  19
  20   // Runs |callback| when a query created via glCreateQueryEXT() has cleared
  21   // passed the glEndQueryEXT() point.
  22   virtual void SignalQuery(uint32 query, const base::Closure& callback) = 0;
  23
  24   // For onscreen contexts, indicates that the surface visibility has changed.
  25   // Clients aren't expected to draw to an invisible surface.
  26   virtual void SetSurfaceVisible(bool visible) = 0;
  27
  28   // Indicates whether the context should aggressively free allocated resources.
  29   // If set to true, the context will purge all temporary resources when
  30   // flushed.
  31   virtual void SetAggressivelyFreeResources(
  32       bool aggressively_free_resources) = 0;
  33
  34   virtual void Swap() = 0;
  35   virtual void PartialSwapBuffers(const gfx::Rect& sub_buffer) = 0;
  36
  37   // Schedule a texture to be presented as an overlay synchronously with the
  38   // primary surface during the next buffer swap.
  39   // This method is not stateful and needs to be re-scheduled every frame.
  40   virtual void ScheduleOverlayPlane(int plane_z_order,
  41                                     gfx::OverlayTransform plane_transform,
  42                                     unsigned overlay_texture_id,
  43                                     const gfx::Rect& display_bounds,
  44                                     const gfx::RectF& uv_rect) = 0;
  45
  46   virtual uint32 InsertFutureSyncPointCHROMIUM() = 0;
  47   virtual void RetireSyncPointCHROMIUM(uint32 sync_point) = 0;
  48
  49  protected:
  50   ContextSupport() {}
  51   virtual ~ContextSupport() {}
  52 };
  53
  54 }
  55
  56 #endif  // GPU_COMMAND_BUFFER_CLIENT_CONTEXT_SUPPORT_H_