Index: content/common/gpu/client/gpu_memory_buffer_impl.h |
diff --git a/content/common/gpu/client/gpu_memory_buffer_impl.h b/content/common/gpu/client/gpu_memory_buffer_impl.h |
new file mode 100644 |
index 0000000000000000000000000000000000000000..92379a1aabde78acf44f3a6b130d77d2bc478fdb |
--- /dev/null |
+++ b/content/common/gpu/client/gpu_memory_buffer_impl.h |
@@ -0,0 +1,45 @@ |
+// Copyright (c) 2013 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_COMMON_GPU_CLIENT_GPU_MEMORY_BUFFER_IMPL_H_ |
+#define CONTENT_COMMON_GPU_CLIENT_GPU_MEMORY_BUFFER_IMPL_H_ |
+ |
+#include "base/memory/scoped_ptr.h" |
+#include "ui/gfx/gpu_memory_buffer.h" |
+#include "ui/gfx/size.h" |
+ |
+namespace content { |
+ |
+// Provides common implementation of a GPU memory buffer based |
+// on a shared memory handle. |
+class GpuMemoryBufferImpl : public gfx::GpuMemoryBuffer { |
+ public: |
+ GpuMemoryBufferImpl(scoped_ptr<base::SharedMemory> shared_memory, |
+ size_t width, |
+ size_t height, |
+ unsigned internalformat); |
+ virtual ~GpuMemoryBufferImpl(); |
+ |
+ // Overridden from gfx::GpuMemoryBuffer: |
+ virtual void Map(AccessMode mode, void** vaddr) OVERRIDE; |
+ virtual void Unmap() OVERRIDE; |
+ virtual bool IsMapped() const OVERRIDE; |
+ virtual uint32 GetStride() const OVERRIDE; |
+ virtual gfx::GpuMemoryBufferHandle GetHandle() const OVERRIDE; |
+ |
+ static bool IsFormatValid(unsigned internalformat); |
+ static size_t BytesPerPixel(unsigned internalformat); |
+ |
+ private: |
+ scoped_ptr<base::SharedMemory> shared_memory_; |
+ const gfx::Size size_; |
+ unsigned internalformat_; |
+ bool mapped_; |
+ |
+ DISALLOW_COPY_AND_ASSIGN(GpuMemoryBufferImpl); |
+}; |
+ |
+} // namespace content |
+ |
+#endif // CONTENT_COMMON_GPU_CLIENT_GPU_MEMORY_BUFFER_IMPL_H_ |