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/overlay_transform.h"
  10
  11 namespace gfx {
  12 class Rect;
  13 class RectF;
  14 }
  15
  16 namespace gpu {
  17
  18 class ContextSupport {
  19  public:
  20   // Runs |callback| when a sync point is reached.
  21   virtual void SignalSyncPoint(uint32 sync_point,
  22                                const base::Closure& callback) = 0;
  23
  24   // Runs |callback| when a query created via glCreateQueryEXT() has cleared
  25   // passed the glEndQueryEXT() point.
  26   virtual void SignalQuery(uint32 query, const base::Closure& callback) = 0;
  27
  28   // For onscreen contexts, indicates that the surface visibility has changed.
  29   // Clients aren't expected to draw to an invisible surface.
  30   virtual void SetSurfaceVisible(bool visible) = 0;
  31
  32   // Indicates whether the context should aggressively free allocated resources.
  33   // If set to true, the context will purge all temporary resources when
  34   // flushed.
  35   virtual void SetAggressivelyFreeResources(
  36       bool aggressively_free_resources) = 0;
  37
  38   virtual void Swap() = 0;
  39   virtual void PartialSwapBuffers(const gfx::Rect& sub_buffer) = 0;
  40
  41   // Schedule a texture to be presented as an overlay synchronously with the
  42   // primary surface during the next buffer swap.
  43   // This method is not stateful and needs to be re-scheduled every frame.
  44   virtual void ScheduleOverlayPlane(int plane_z_order,
  45                                     gfx::OverlayTransform plane_transform,
  46                                     unsigned overlay_texture_id,
  47                                     const gfx::Rect& display_bounds,
  48                                     const gfx::RectF& uv_rect) = 0;
  49
  50   virtual uint32 InsertFutureSyncPointCHROMIUM() = 0;
  51   virtual void RetireSyncPointCHROMIUM(uint32 sync_point) = 0;
  52
  53   // Returns an ID that can be used to globally identify the share group that
  54   // this context's resources belong to.
  55   virtual uint64_t ShareGroupTracingGUID() const = 0;
  56
  57  protected:
  58   ContextSupport() {}
  59   virtual ~ContextSupport() {}
  60 };
  61
  62 }
  63
  64 #endif  // GPU_COMMAND_BUFFER_CLIENT_CONTEXT_SUPPORT_H_