components/view_manager/gles2/gpu_state.h

   1 // Copyright 2015 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 COMPONENTS_VIEW_MANAGER_GLES2_GPU_STATE_H_
   6 #define COMPONENTS_VIEW_MANAGER_GLES2_GPU_STATE_H_
   7
   8 #include "base/memory/ref_counted.h"
   9 #include "base/single_thread_task_runner.h"
  10 #include "base/threading/thread.h"
  11 #include "gpu/command_buffer/service/mailbox_manager_impl.h"
  12 #include "gpu/command_buffer/service/sync_point_manager.h"
  13 #include "ui/gl/gl_share_group.h"
  14
  15 namespace gles2 {
  16
  17 // We need to share these across all CommandBuffer instances so that contexts
  18 // they create can share resources with each other via mailboxes.
  19 class GpuState : public base::RefCounted<GpuState> {
  20  public:
  21   GpuState();
  22
  23   // We run the CommandBufferImpl on the control_task_runner, which forwards
  24   // most method class to the CommandBufferDriver, which runs on the "driver",
  25   // thread (i.e., the thread on which GpuImpl instances are created).
  26   scoped_refptr<base::SingleThreadTaskRunner> control_task_runner() {
  27     return control_thread_.task_runner();
  28   }
  29
  30   // These objects are intended to be used on the "driver" thread (i.e., the
  31   // thread on which GpuImpl instances are created).
  32   gfx::GLShareGroup* share_group() const { return share_group_.get(); }
  33   gpu::gles2::MailboxManager* mailbox_manager() const {
  34     return mailbox_manager_.get();
  35   }
  36   gpu::SyncPointManager* sync_point_manager() const {
  37     return sync_point_manager_.get();
  38   }
  39
  40  private:
  41   friend class base::RefCounted<GpuState>;
  42   ~GpuState();
  43
  44   base::Thread control_thread_;
  45   scoped_refptr<gpu::SyncPointManager> sync_point_manager_;
  46   scoped_refptr<gfx::GLShareGroup> share_group_;
  47   scoped_refptr<gpu::gles2::MailboxManager> mailbox_manager_;
  48 };
  49
  50 }  // namespace gles2
  51
  52 #endif  // COMPONENTS_VIEW_MANAGER_GLES2_GPU_STATE_H_