| // Copyright (c) 2016 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef GPU_IPC_SERVICE_GPU_VSYNC_PROVIDER_WIN_H_ |
| #define GPU_IPC_SERVICE_GPU_VSYNC_PROVIDER_WIN_H_ |
| |
| #include <memory> |
| |
| #include "base/callback.h" |
| #include "base/memory/ref_counted.h" |
| #include "base/memory/weak_ptr.h" |
| #include "base/synchronization/lock.h" |
| #include "base/time/time.h" |
| #include "gpu/gpu_export.h" |
| #include "gpu/ipc/common/surface_handle.h" |
| #include "gpu/ipc/service/image_transport_surface_delegate.h" |
| #include "ui/gfx/vsync_provider.h" |
| |
| namespace gpu { |
| |
| class GpuVSyncWorker; |
| class GpuVSyncMessageFilter; |
| |
| class GPU_EXPORT GpuVSyncProviderWin : public gfx::VSyncProvider { |
| public: |
| GpuVSyncProviderWin(base::WeakPtr<ImageTransportSurfaceDelegate> delegate, |
| SurfaceHandle surface_handle); |
| ~GpuVSyncProviderWin() override; |
| |
| // This class ignores this method and updates VSync directly via a |
| // worker thread IPC call. |
| void GetVSyncParameters(const UpdateVSyncCallback& callback) override; |
| |
| private: |
| void OnVSync(base::TimeTicks timestamp, base::TimeDelta interval); |
| |
| // VSync worker that waits for VSync events on worker thread. |
| scoped_refptr<GpuVSyncWorker> vsync_worker_; |
| // Message filter to send/receive IPC messages. |
| scoped_refptr<GpuVSyncMessageFilter> message_filter_; |
| |
| DISALLOW_COPY_AND_ASSIGN(GpuVSyncProviderWin); |
| }; |
| |
| } // namespace gpu |
| |
| #endif // GPU_IPC_SERVICE_GPU_VSYNC_PROVIDER_WIN_H_ |