Upstream version 10.39.225.0

[platform/framework/web/crosswalk.git] / src / content / common / gpu / client / gpu_memory_buffer_impl.h

diff --git a/src/content/common/gpu/client/gpu_memory_buffer_impl.h b/src/content/common/gpu/client/gpu_memory_buffer_impl.h
index af72599..ea49d2b 100644 (file)
--- a/src/content/common/gpu/client/gpu_memory_buffer_impl.h
+++ b/src/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"
@@ -14,29 +15,46 @@ namespace content {
 // Provides common implementation of a GPU memory buffer.
 class GpuMemoryBufferImpl : public gfx::GpuMemoryBuffer {
  public:
+  typedef base::Callback<void(scoped_ptr<GpuMemoryBufferImpl> buffer)>
+      CreationCallback;
+  typedef base::Callback<void(const gfx::GpuMemoryBufferHandle& handle)>
+      AllocationCallback;
+  typedef base::Closure DestructionCallback;
+
   virtual ~GpuMemoryBufferImpl();
 
   // Creates a GPU memory buffer instance with |size| and |internalformat| for
-  // |usage|.
-  static scoped_ptr<GpuMemoryBufferImpl> Create(const gfx::Size& size,
-                                                unsigned internalformat,
-                                                unsigned usage);
+  // |usage| by the current process and |client_id|.
+  static void Create(const gfx::Size& size,
+                     unsigned internalformat,
+                     unsigned usage,
+                     int client_id,
+                     const CreationCallback& callback);
 
   // Allocates a GPU memory buffer with |size| and |internalformat| for |usage|
-  // by |child_process|. The |handle| returned can be used by the
-  // |child_process| to create an instance of this class.
+  // by |child_process| and |child_client_id|. The |handle| returned can be
+  // used by the |child_process| to create an instance of this class.
   static void AllocateForChildProcess(const gfx::Size& size,
                                       unsigned internalformat,
                                       unsigned usage,
                                       base::ProcessHandle child_process,
-                                      gfx::GpuMemoryBufferHandle* handle);
+                                      int child_client_id,
+                                      const AllocationCallback& callback);
+
+  // Notify that GPU memory buffer has been deleted by |child_process|.
+  static void DeletedByChildProcess(gfx::GpuMemoryBufferType type,
+                                    const gfx::GpuMemoryBufferId& id,
+                                    base::ProcessHandle child_process);
 
   // Creates an instance from the given |handle|. |size| and |internalformat|
-  // should match what was used to allocate the |handle|.
+  // should match what was used to allocate the |handle|. |callback| is
+  // called when instance is deleted, which is not necessarily on the same
+  // thread as this function was called on and instance was created on.
   static scoped_ptr<GpuMemoryBufferImpl> CreateFromHandle(
-      gfx::GpuMemoryBufferHandle handle,
+      const gfx::GpuMemoryBufferHandle& handle,
       const gfx::Size& size,
-      unsigned internalformat);
+      unsigned internalformat,
+      const DestructionCallback& callback);
 
   // Returns true if |internalformat| is a format recognized by this base class.
   static bool IsFormatValid(unsigned internalformat);
@@ -52,10 +70,13 @@ class GpuMemoryBufferImpl : public gfx::GpuMemoryBuffer {
   virtual bool IsMapped() const OVERRIDE;
 
  protected:
-  GpuMemoryBufferImpl(const gfx::Size& size, unsigned internalformat);
+  GpuMemoryBufferImpl(const gfx::Size& size,
+                      unsigned internalformat,
+                      const DestructionCallback& callback);
 
   const gfx::Size size_;
   const unsigned internalformat_;
+  const DestructionCallback callback_;
   bool mapped_;
 
   DISALLOW_COPY_AND_ASSIGN(GpuMemoryBufferImpl);