| // Copyright (c) 2012 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 CONTENT_BROWSER_GPU_GPU_PROCESS_HOST_UI_SHIM_H_ |
| #define CONTENT_BROWSER_GPU_GPU_PROCESS_HOST_UI_SHIM_H_ |
| |
| // This class lives on the UI thread and supports classes like the |
| // BackingStoreProxy, which must live on the UI thread. The IO thread |
| // portion of this class, the GpuProcessHost, is responsible for |
| // shuttling messages between the browser and GPU processes. |
| |
| #include <stdint.h> |
| |
| #include <string> |
| |
| #include "base/callback.h" |
| #include "base/compiler_specific.h" |
| #include "base/memory/linked_ptr.h" |
| #include "base/memory/ref_counted.h" |
| #include "base/threading/non_thread_safe.h" |
| #include "build/build_config.h" |
| #include "content/common/content_export.h" |
| #include "gpu/config/gpu_info.h" |
| #include "gpu/ipc/common/memory_stats.h" |
| #include "ipc/ipc_listener.h" |
| #include "ipc/ipc_sender.h" |
| #include "ipc/message_router.h" |
| |
| namespace ui { |
| class LatencyInfo; |
| } |
| |
| namespace gfx { |
| class Size; |
| } |
| |
| namespace IPC { |
| class Message; |
| } |
| |
| namespace gpu { |
| struct VideoMemoryUsageStats; |
| } |
| |
| namespace content { |
| void RouteToGpuProcessHostUIShimTask(int host_id, const IPC::Message& msg); |
| |
| class GpuProcessHostUIShim : public IPC::Listener, |
| public IPC::Sender, |
| public base::NonThreadSafe { |
| public: |
| // Create a GpuProcessHostUIShim with the given ID. The object can be found |
| // using FromID with the same id. |
| static GpuProcessHostUIShim* Create(int host_id); |
| |
| // Destroy the GpuProcessHostUIShim with the given host ID. This can only |
| // be called on the UI thread. Only the GpuProcessHost should destroy the |
| // UI shim. |
| static void Destroy(int host_id, const std::string& message); |
| |
| // Destroy all remaining GpuProcessHostUIShims. |
| CONTENT_EXPORT static void DestroyAll(); |
| |
| CONTENT_EXPORT static GpuProcessHostUIShim* FromID(int host_id); |
| |
| // Get a GpuProcessHostUIShim instance; it doesn't matter which one. |
| // Return NULL if none has been created. |
| CONTENT_EXPORT static GpuProcessHostUIShim* GetOneInstance(); |
| |
| // Stops the GPU process. |
| CONTENT_EXPORT void StopGpuProcess(const base::Closure& callback); |
| |
| // IPC::Sender implementation. |
| bool Send(IPC::Message* msg) override; |
| |
| // IPC::Listener implementation. |
| // The GpuProcessHost causes this to be called on the UI thread to |
| // dispatch the incoming messages from the GPU process, which are |
| // actually received on the IO thread. |
| bool OnMessageReceived(const IPC::Message& message) override; |
| |
| CONTENT_EXPORT void SimulateRemoveAllContext(); |
| CONTENT_EXPORT void SimulateCrash(); |
| CONTENT_EXPORT void SimulateHang(); |
| |
| private: |
| explicit GpuProcessHostUIShim(int host_id); |
| ~GpuProcessHostUIShim() override; |
| |
| // Message handlers. |
| bool OnControlMessageReceived(const IPC::Message& message); |
| void OnLogMessage(int level, const std::string& header, |
| const std::string& message); |
| void OnGraphicsInfoCollected(const gpu::GPUInfo& gpu_info); |
| void OnVideoMemoryUsageStatsReceived( |
| const gpu::VideoMemoryUsageStats& video_memory_usage_stats); |
| |
| // The serial number of the GpuProcessHost / GpuProcessHostUIShim pair. |
| int host_id_; |
| base::Closure close_callback_; |
| }; |
| |
| } // namespace content |
| |
| #endif // CONTENT_BROWSER_GPU_GPU_PROCESS_HOST_UI_SHIM_H_ |