1 // Copyright (c) 2012 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.
5 #ifndef CONTENT_BROWSER_GPU_GPU_PROCESS_HOST_UI_SHIM_H_
6 #define CONTENT_BROWSER_GPU_GPU_PROCESS_HOST_UI_SHIM_H_
8 // This class lives on the UI thread and supports classes like the
9 // BackingStoreProxy, which must live on the UI thread. The IO thread
10 // portion of this class, the GpuProcessHost, is responsible for
11 // shuttling messages between the browser and GPU processes.
15 #include "base/callback_forward.h"
16 #include "base/compiler_specific.h"
17 #include "base/memory/linked_ptr.h"
18 #include "base/memory/ref_counted.h"
19 #include "base/threading/non_thread_safe.h"
20 #include "content/common/content_export.h"
21 #include "content/common/message_router.h"
22 #include "content/public/common/gpu_memory_stats.h"
23 #include "gpu/config/gpu_info.h"
24 #include "ipc/ipc_listener.h"
25 #include "ipc/ipc_sender.h"
27 struct GpuHostMsg_AcceleratedSurfaceBuffersSwapped_Params;
42 void RouteToGpuProcessHostUIShimTask(int host_id, const IPC::Message& msg);
44 class GpuProcessHostUIShim : public IPC::Listener,
46 public base::NonThreadSafe {
48 // Create a GpuProcessHostUIShim with the given ID. The object can be found
49 // using FromID with the same id.
50 static GpuProcessHostUIShim* Create(int host_id);
52 // Destroy the GpuProcessHostUIShim with the given host ID. This can only
53 // be called on the UI thread. Only the GpuProcessHost should destroy the
55 static void Destroy(int host_id, const std::string& message);
57 // Destroy all remaining GpuProcessHostUIShims.
58 CONTENT_EXPORT static void DestroyAll();
60 CONTENT_EXPORT static GpuProcessHostUIShim* FromID(int host_id);
62 // Get a GpuProcessHostUIShim instance; it doesn't matter which one.
63 // Return NULL if none has been created.
64 CONTENT_EXPORT static GpuProcessHostUIShim* GetOneInstance();
66 // IPC::Sender implementation.
67 bool Send(IPC::Message* msg) override;
69 // IPC::Listener implementation.
70 // The GpuProcessHost causes this to be called on the UI thread to
71 // dispatch the incoming messages from the GPU process, which are
72 // actually received on the IO thread.
73 bool OnMessageReceived(const IPC::Message& message) override;
75 CONTENT_EXPORT void SimulateRemoveAllContext();
76 CONTENT_EXPORT void SimulateCrash();
77 CONTENT_EXPORT void SimulateHang();
80 explicit GpuProcessHostUIShim(int host_id);
81 ~GpuProcessHostUIShim() override;
84 bool OnControlMessageReceived(const IPC::Message& message);
86 void OnLogMessage(int level, const std::string& header,
87 const std::string& message);
89 void OnGraphicsInfoCollected(const gpu::GPUInfo& gpu_info);
91 void OnAcceleratedSurfaceInitialized(int32 surface_id, int32 route_id);
92 void OnAcceleratedSurfaceBuffersSwapped(
93 const GpuHostMsg_AcceleratedSurfaceBuffersSwapped_Params& params);
94 void OnVideoMemoryUsageStatsReceived(
95 const GPUVideoMemoryUsageStats& video_memory_usage_stats);
97 // The serial number of the GpuProcessHost / GpuProcessHostUIShim pair.
101 } // namespace content
103 #endif // CONTENT_BROWSER_GPU_GPU_PROCESS_HOST_UI_SHIM_H_