Plumb GpuMemoryBuffer allocation to GPU process.

content/common/gpu/gpu_messages.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.
 
 // Multiply-included message file, hence no include guard here, but see below
 // for a much smaller-than-usual include guard section.
 
 #include <string>
 #include <vector>
 
@@ skipping 217 matching lines @@
   IPC_STRUCT_TRAITS_MEMBER(bytes_allocated)
   IPC_STRUCT_TRAITS_MEMBER(backbuffer_requested)
 IPC_STRUCT_TRAITS_END()
 
 IPC_STRUCT_TRAITS_BEGIN(gfx::GLSurfaceHandle)
   IPC_STRUCT_TRAITS_MEMBER(handle)
   IPC_STRUCT_TRAITS_MEMBER(transport_type)
   IPC_STRUCT_TRAITS_MEMBER(parent_client_id)
 IPC_STRUCT_TRAITS_END()
 
+IPC_STRUCT_TRAITS_BEGIN(gfx::GpuMemoryBufferParams)
+  IPC_STRUCT_TRAITS_MEMBER(width)
+  IPC_STRUCT_TRAITS_MEMBER(height)
+  IPC_STRUCT_TRAITS_MEMBER(internalformat)
+  IPC_STRUCT_TRAITS_MEMBER(usage)
+  IPC_STRUCT_TRAITS_MEMBER(window)
+  IPC_STRUCT_TRAITS_MEMBER(process_handle)
+  IPC_STRUCT_TRAITS_MEMBER(client_id)
+IPC_STRUCT_TRAITS_END()
+
 //------------------------------------------------------------------------------
 // GPU Messages
 // These are messages from the browser to the GPU process.
 
 // Tells the GPU process to initialize itself. The browser explicitly
 // requests this be done so that we are guaranteed that the channel is set
 // up between the browser and GPU process before doing any work that might
 // potentially crash the GPU process. Detection of the child process
 // exiting abruptly is predicated on having the IPC channel set up.
 IPC_MESSAGE_CONTROL0(GpuMsg_Initialize)
@@ skipping 21 matching lines @@
                      GPUCreateCommandBufferConfig, /* init_params */
                      int32 /* route_id */)
 
 // Tells the GPU process to create a new image from a window. Images
 // can be bound to textures using CHROMIUM_texture_from_image.
 IPC_MESSAGE_CONTROL3(GpuMsg_CreateImage,
                      gfx::PluginWindowHandle, /* window */
                      int32, /* client_id */
                      int32 /* image_id */)
 
+// Allocate a buffer asynchronously in the GPU process.
+IPC_MESSAGE_CONTROL1(GpuMsg_AllocateGpuMemoryBuffer,
+                     gfx::GpuMemoryBufferParams /* params */)
+
 // Tells the GPU process to delete image.
 IPC_MESSAGE_CONTROL3(GpuMsg_DeleteImage,
                      int32, /* client_id */
                      int32, /* image_id */
                      int32 /* sync_point */)
 
 // Tells the GPU process to create a context for collecting graphics card
 // information.
 IPC_MESSAGE_CONTROL0(GpuMsg_CollectGraphicsInfo)
 
@@ skipping 72 matching lines @@
 
 // Request from GPU to free the browser resources associated with the
 // command buffer.
 IPC_MESSAGE_CONTROL1(GpuHostMsg_DestroyCommandBuffer,
                      int32 /* surface_id */)
 
 // Response from GPU to a GpuMsg_CreateImage message.
 IPC_MESSAGE_CONTROL1(GpuHostMsg_ImageCreated,
                      gfx::Size /* size */)
 
+// Response from GPU to a GpuMsg_AllocateGpuMemoryBuffer message.
+IPC_MESSAGE_CONTROL1(GpuHostMsg_GpuMemoryBufferAllocated,
+                     gfx::GpuMemoryBufferHandle /* handle */)
+
 // Response from GPU to a GpuMsg_CollectGraphicsInfo.
 IPC_MESSAGE_CONTROL1(GpuHostMsg_GraphicsInfoCollected,
                      gpu::GPUInfo /* GPU logging stats */)
 
 // Response from GPU to a GpuMsg_GetVideoMemory.
 IPC_MESSAGE_CONTROL1(GpuHostMsg_VideoMemoryUsageStats,
                      content::GPUVideoMemoryUsageStats /* GPU memory stats */)
 
 // Message from GPU to add a GPU log message to the about:gpu page.
 IPC_MESSAGE_CONTROL3(GpuHostMsg_OnLogMessage,
@@ skipping 383 matching lines @@
                     int32 /* bitstream_buffer_id */,
                     uint32 /* payload_size */,
                     bool /* key_frame */)
 
 // Report error condition.
 IPC_MESSAGE_ROUTED1(AcceleratedVideoEncoderHostMsg_NotifyError,
                     media::VideoEncodeAccelerator::Error /* error */)
 
 // Send destroy request to the encoder.
 IPC_MESSAGE_ROUTED0(AcceleratedVideoEncoderMsg_Destroy)