Delay the response to ChildProcessHostMsg_SyncAllocateGpuMemoryBuffer via a callback to allow for buffer allocation on the gpu process.

BUG=368716

Review URL: https://codereview.chromium.org/290573011

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@271861 0039d316-1c4b-4281-b951-d872f2087c98

content/browser/renderer_host/render_message_filter.cc

@@ -440,8 +440,9 @@ bool RenderMessageFilter::OnMessageReceived(const IPC::Message& message) {
                         OnAllocateSharedMemory)
     IPC_MESSAGE_HANDLER(ChildProcessHostMsg_SyncAllocateSharedBitmap,
                         OnAllocateSharedBitmap)
-    IPC_MESSAGE_HANDLER(ChildProcessHostMsg_SyncAllocateGpuMemoryBuffer,
-                        OnAllocateGpuMemoryBuffer)
+    IPC_MESSAGE_HANDLER_DELAY_REPLY(
+        ChildProcessHostMsg_SyncAllocateGpuMemoryBuffer,
+        OnAllocateGpuMemoryBuffer)
     IPC_MESSAGE_HANDLER(ChildProcessHostMsg_AllocatedSharedBitmap,
                         OnAllocatedSharedBitmap)
     IPC_MESSAGE_HANDLER(ChildProcessHostMsg_DeletedSharedBitmap,
@@ -1230,21 +1231,20 @@ void RenderMessageFilter::OnWebAudioMediaCodec(
 }
 #endif
 
-void RenderMessageFilter::OnAllocateGpuMemoryBuffer(
-    uint32 width,
-    uint32 height,
-    uint32 internalformat,
-    uint32 usage,
-    gfx::GpuMemoryBufferHandle* handle) {
+void RenderMessageFilter::OnAllocateGpuMemoryBuffer(uint32 width,
+                                                    uint32 height,
+                                                    uint32 internalformat,
+                                                    uint32 usage,
+                                                    IPC::Message* reply) {
   if (!GpuMemoryBufferImpl::IsFormatValid(internalformat) ||
       !GpuMemoryBufferImpl::IsUsageValid(usage)) {
-    handle->type = gfx::EMPTY_BUFFER;
+    GpuMemoryBufferAllocated(reply, gfx::GpuMemoryBufferHandle());
     return;
   }
   base::CheckedNumeric<int> size = width;
   size *= height;
   if (!size.IsValid()) {
-    handle->type = gfx::EMPTY_BUFFER;
+    GpuMemoryBufferAllocated(reply, gfx::GpuMemoryBufferHandle());
     return;
   }
 
@@ -1284,13 +1284,15 @@ void RenderMessageFilter::OnAllocateGpuMemoryBuffer(
       base::ScopedCFTypeRef<CFTypeRef> io_surface(
           io_surface_support->IOSurfaceCreate(properties));
       if (io_surface) {
-        handle->type = gfx::IO_SURFACE_BUFFER;
-        handle->io_surface_id = io_surface_support->IOSurfaceGetID(io_surface);
+        gfx::GpuMemoryBufferHandle handle;
+        handle.type = gfx::IO_SURFACE_BUFFER;
+        handle.io_surface_id = io_surface_support->IOSurfaceGetID(io_surface);
 
         // TODO(reveman): This makes the assumption that the renderer will
         // grab a reference to the surface before sending another message.
         // crbug.com/325045
         last_io_surface_ = io_surface;
+        GpuMemoryBufferAllocated(reply, handle);
         return;
       }
     }
@@ -1310,16 +1312,30 @@ void RenderMessageFilter::OnAllocateGpuMemoryBuffer(
     int surface_texture_id =
         CompositorImpl::CreateSurfaceTexture(render_process_id_);
     if (surface_texture_id != -1) {
-      handle->type = gfx::SURFACE_TEXTURE_BUFFER;
-      handle->surface_texture_id =
+      gfx::GpuMemoryBufferHandle handle;
+      handle.type = gfx::SURFACE_TEXTURE_BUFFER;
+      handle.surface_texture_id =
           gfx::SurfaceTextureId(surface_texture_id, render_process_id_);
+      GpuMemoryBufferAllocated(reply, handle);
       return;
     }
   }
 #endif
 
   GpuMemoryBufferImpl::AllocateForChildProcess(
-      gfx::Size(width, height), internalformat, usage, PeerHandle(), handle);
+      gfx::Size(width, height),
+      internalformat,
+      usage,
+      PeerHandle(),
+      base::Bind(&RenderMessageFilter::GpuMemoryBufferAllocated, this, reply));
+}
+
+void RenderMessageFilter::GpuMemoryBufferAllocated(
+    IPC::Message* reply,
+    const gfx::GpuMemoryBufferHandle& handle) {
+  ChildProcessHostMsg_SyncAllocateGpuMemoryBuffer::WriteReplyParams(reply,
+                                                                    handle);
+  Send(reply);
 }
 
 }  // namespace content

content/browser/renderer_host/render_message_filter.h

@@ -277,7 +277,9 @@ class RenderMessageFilter : public BrowserMessageFilter {
                                  uint32 height,
                                  uint32 internalformat,
                                  uint32 usage,
-                                 gfx::GpuMemoryBufferHandle* handle);
+                                 IPC::Message* reply);
+  void GpuMemoryBufferAllocated(IPC::Message* reply,
+                                const gfx::GpuMemoryBufferHandle& handle);
 
   // Cached resource request dispatcher host and plugin service, guaranteed to
   // be non-null if Init succeeds. We do not own the objects, they are managed

content/common/gpu/client/gpu_memory_buffer_impl.h

@@ -5,6 +5,7 @@
 #ifndef CONTENT_COMMON_GPU_CLIENT_GPU_MEMORY_BUFFER_IMPL_H_
 #define CONTENT_COMMON_GPU_CLIENT_GPU_MEMORY_BUFFER_IMPL_H_
 
+#include "base/callback.h"
 #include "base/memory/scoped_ptr.h"
 #include "ui/gfx/gpu_memory_buffer.h"
 #include "ui/gfx/size.h"
@@ -14,6 +15,9 @@ namespace content {
 // Provides common implementation of a GPU memory buffer.
 class GpuMemoryBufferImpl : public gfx::GpuMemoryBuffer {
  public:
+  typedef base::Callback<void(const gfx::GpuMemoryBufferHandle& handle)>
+      AllocationCallback;
+
   virtual ~GpuMemoryBufferImpl();
 
   // Creates a GPU memory buffer instance with |size| and |internalformat| for
@@ -29,7 +33,7 @@ class GpuMemoryBufferImpl : public gfx::GpuMemoryBuffer {
                                       unsigned internalformat,
                                       unsigned usage,
                                       base::ProcessHandle child_process,
-                                      gfx::GpuMemoryBufferHandle* handle);
+                                      const AllocationCallback& callback);
 
   // Creates an instance from the given |handle|. |size| and |internalformat|
   // should match what was used to allocate the |handle|.

content/common/gpu/client/gpu_memory_buffer_impl_android.cc

@@ -33,15 +33,15 @@ void GpuMemoryBufferImpl::AllocateForChildProcess(
     unsigned internalformat,
     unsigned usage,
     base::ProcessHandle child_process,
-    gfx::GpuMemoryBufferHandle* handle) {
+    const AllocationCallback& callback) {
   if (GpuMemoryBufferImplShm::IsConfigurationSupported(
           size, internalformat, usage)) {
     GpuMemoryBufferImplShm::AllocateSharedMemoryForChildProcess(
-        size, internalformat, child_process, handle);
+        size, internalformat, child_process, callback);
     return;
   }
 
-  handle->type = gfx::EMPTY_BUFFER;
+  callback.Run(gfx::GpuMemoryBufferHandle());
 }
 
 // static

content/common/gpu/client/gpu_memory_buffer_impl_linux.cc

@@ -32,15 +32,15 @@ void GpuMemoryBufferImpl::AllocateForChildProcess(
     unsigned internalformat,
     unsigned usage,
     base::ProcessHandle child_process,
-    gfx::GpuMemoryBufferHandle* handle) {
+    const AllocationCallback& callback) {
   if (GpuMemoryBufferImplShm::IsConfigurationSupported(
           size, internalformat, usage)) {
     GpuMemoryBufferImplShm::AllocateSharedMemoryForChildProcess(
-        size, internalformat, child_process, handle);
+        size, internalformat, child_process, callback);
     return;
   }
 
-  handle->type = gfx::EMPTY_BUFFER;
+  callback.Run(gfx::GpuMemoryBufferHandle());
 }
 
 // static

content/common/gpu/client/gpu_memory_buffer_impl_mac.cc

@@ -33,15 +33,15 @@ void GpuMemoryBufferImpl::AllocateForChildProcess(
     unsigned internalformat,
     unsigned usage,
     base::ProcessHandle child_process,
-    gfx::GpuMemoryBufferHandle* handle) {
+    const AllocationCallback& callback) {
   if (GpuMemoryBufferImplShm::IsConfigurationSupported(
           size, internalformat, usage)) {
     GpuMemoryBufferImplShm::AllocateSharedMemoryForChildProcess(
-        size, internalformat, child_process, handle);
+        size, internalformat, child_process, callback);
     return;
   }
 
-  handle->type = gfx::EMPTY_BUFFER;
+  callback.Run(gfx::GpuMemoryBufferHandle());
 }
 
 // static

content/common/gpu/client/gpu_memory_buffer_impl_shm.cc

@@ -20,16 +20,18 @@ void GpuMemoryBufferImplShm::AllocateSharedMemoryForChildProcess(
     const gfx::Size& size,
     unsigned internalformat,
     base::ProcessHandle child_process,
-    gfx::GpuMemoryBufferHandle* handle) {
+    const AllocationCallback& callback) {
   DCHECK(IsLayoutSupported(size, internalformat));
+  gfx::GpuMemoryBufferHandle handle;
   base::SharedMemory shared_memory;
   if (!shared_memory.CreateAnonymous(size.GetArea() *
                                      BytesPerPixel(internalformat))) {
-    handle->type = gfx::EMPTY_BUFFER;
+    handle.type = gfx::EMPTY_BUFFER;
     return;
   }
-  handle->type = gfx::SHARED_MEMORY_BUFFER;
-  shared_memory.GiveToProcess(child_process, &handle->handle);
+  handle.type = gfx::SHARED_MEMORY_BUFFER;
+  shared_memory.GiveToProcess(child_process, &handle.handle);
+  callback.Run(handle);
 }
 
 // static

content/common/gpu/client/gpu_memory_buffer_impl_shm.h

@@ -21,7 +21,7 @@ class GpuMemoryBufferImplShm : public GpuMemoryBufferImpl {
       const gfx::Size& size,
       unsigned internalformat,
       base::ProcessHandle child_process,
-      gfx::GpuMemoryBufferHandle* handle);
+      const AllocationCallback& callback);
 
   static bool IsLayoutSupported(const gfx::Size& size, unsigned internalformat);
   static bool IsUsageSupported(unsigned usage);

content/common/gpu/client/gpu_memory_buffer_impl_win.cc

@@ -32,15 +32,15 @@ void GpuMemoryBufferImpl::AllocateForChildProcess(
     unsigned internalformat,
     unsigned usage,
     base::ProcessHandle child_process,
-    gfx::GpuMemoryBufferHandle* handle) {
+    const AllocationCallback& callback) {
   if (GpuMemoryBufferImplShm::IsConfigurationSupported(
           size, internalformat, usage)) {
     GpuMemoryBufferImplShm::AllocateSharedMemoryForChildProcess(
-        size, internalformat, child_process, handle);
+        size, internalformat, child_process, callback);
     return;
   }
 
-  handle->type = gfx::EMPTY_BUFFER;
+  callback.Run(gfx::GpuMemoryBufferHandle());
 }
 
 // static