Plumb GpuMemoryBuffer allocation to GPU process.

content/browser/gpu/gpu_process_host.h

 // 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_H_
 #define CONTENT_BROWSER_GPU_GPU_PROCESS_HOST_H_
 
 #include <map>
 #include <queue>
 #include <set>
@@ skipping 16 matching lines @@
 #include "ipc/message_filter.h"
 #include "ui/gfx/native_widget_types.h"
 #include "ui/gfx/size.h"
 #include "url/gurl.h"
 
 struct GPUCreateCommandBufferConfig;
 struct GpuHostMsg_AcceleratedSurfaceBuffersSwapped_Params;
 struct GpuHostMsg_AcceleratedSurfacePostSubBuffer_Params;
 struct GpuHostMsg_AcceleratedSurfaceRelease_Params;
 
+namespace gfx {
+struct GpuMemoryBufferHandle;
+}
+
 namespace IPC {
 struct ChannelHandle;
 }
 
 namespace content {
 class BrowserChildProcessHostImpl;
 class GpuMainThread;
 class RenderWidgetHostViewFrameSubscriber;
 class ShaderDiskCache;
 
 typedef base::Thread* (*GpuMainThreadFactoryFunction)(const std::string& id);
 
 class GpuProcessHost : public BrowserChildProcessHostDelegate,
                        public IPC::Sender,
                        public base::NonThreadSafe {
  public:
   enum GpuProcessKind {
     GPU_PROCESS_KIND_UNSANDBOXED,
     GPU_PROCESS_KIND_SANDBOXED,
     GPU_PROCESS_KIND_COUNT
   };
 
   typedef base::Callback<void(const IPC::ChannelHandle&, const gpu::GPUInfo&)>
       EstablishChannelCallback;
 
   typedef base::Callback<void(bool)> CreateCommandBufferCallback;
 
   typedef base::Callback<void(const gfx::Size)> CreateImageCallback;
 
+  typedef base::Callback<void(const gfx::GpuMemoryBufferHandle& handle)>
+      CreateGpuMemoryBufferCallback;
+
   static bool gpu_enabled() { return gpu_enabled_; }
 
   // Creates a new GpuProcessHost or gets an existing one, resulting in the
   // launching of a GPU process if required.  Returns null on failure. It
   // is not safe to store the pointer once control has returned to the message
   // loop as it can be destroyed. Instead store the associated GPU host ID.
   // This could return NULL if GPU access is not allowed (blacklisted).
   CONTENT_EXPORT static GpuProcessHost* Get(GpuProcessKind kind,
                                             CauseForGpuLaunch cause);
 
@@ skipping 42 matching lines @@
   // Tells the GPU process to create a new image using the given window.
   void CreateImage(
       gfx::PluginWindowHandle window,
       int client_id,
       int image_id,
       const CreateImageCallback& callback);
 
     // Tells the GPU process to delete image.
   void DeleteImage(int client_id, int image_id, int sync_point);
 
+  void CreateGpuMemoryBuffer(const gfx::GpuMemoryBufferHandle& handle,
+                             size_t width,
+                             size_t height,
+                             unsigned internalformat,
+                             unsigned usage,
+                             const CreateGpuMemoryBufferCallback& callback);
+  void DestroyGpuMemoryBuffer(const gfx::GpuMemoryBufferHandle& handle,
+                              int sync_point);
+
   // What kind of GPU process, e.g. sandboxed or unsandboxed.
   GpuProcessKind kind();
 
   void ForceShutdown();
 
   void BeginFrameSubscription(
       int surface_id,
       base::WeakPtr<RenderWidgetHostViewFrameSubscriber> subscriber);
   void EndFrameSubscription(int surface_id);
   void LoadedShader(const std::string& key, const std::string& data);
@@ skipping 14 matching lines @@
   virtual void OnChannelConnected(int32 peer_pid) OVERRIDE;
   virtual void OnProcessLaunched() OVERRIDE;
   virtual void OnProcessCrashed(int exit_code) OVERRIDE;
 
   // Message handlers.
   void OnInitialized(bool result, const gpu::GPUInfo& gpu_info);
   void OnChannelEstablished(const IPC::ChannelHandle& channel_handle);
   void OnCommandBufferCreated(bool succeeded);
   void OnDestroyCommandBuffer(int32 surface_id);
   void OnImageCreated(const gfx::Size size);
+  void OnGpuMemoryBufferCreated(const gfx::GpuMemoryBufferHandle& handle);
   void OnDidCreateOffscreenContext(const GURL& url);
   void OnDidLoseContext(bool offscreen,
                         gpu::error::ContextLostReason reason,
                         const GURL& url);
   void OnDidDestroyOffscreenContext(const GURL& url);
   void OnGpuMemoryUmaStatsReceived(const GPUMemoryUmaStats& stats);
 #if defined(OS_MACOSX)
   void OnAcceleratedSurfaceBuffersSwapped(
       const GpuHostMsg_AcceleratedSurfaceBuffersSwapped_Params& params);
 #endif
@@ skipping 17 matching lines @@
   // These are the channel requests that we have already sent to
   // the GPU process, but haven't heard back about yet.
   std::queue<EstablishChannelCallback> channel_requests_;
 
   // The pending create command buffer requests we need to reply to.
   std::queue<CreateCommandBufferCallback> create_command_buffer_requests_;
 
   // The pending create image requests we need to reply to.
   std::queue<CreateImageCallback> create_image_requests_;
 
+  // The pending create gpu memory buffer requests we need to reply to.
+  std::queue<CreateGpuMemoryBufferCallback> create_gpu_memory_buffer_requests_;
 
   // Qeueud messages to send when the process launches.
   std::queue<IPC::Message*> queued_messages_;
 
   // Whether the GPU process is valid, set to false after Send() failed.
   bool valid_;
 
   // Whether we are running a GPU thread inside the browser process instead
   // of a separate GPU process.
   bool in_process_;
@@ skipping 51 matching lines @@
   typedef std::multimap<int, scoped_refptr<GpuSurfaceTracker::SurfaceRef> >
       SurfaceRefMap;
   SurfaceRefMap surface_refs_;
 
   DISALLOW_COPY_AND_ASSIGN(GpuProcessHost);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_GPU_GPU_PROCESS_HOST_H_