Created a BufferStorage9 class.

src/build_angle.gypi

@@ -264,6 +264,8 @@
             'libGLESv2/renderer/Blit.h',
             'libGLESv2/renderer/BufferStorage.h',
             'libGLESv2/renderer/BufferStorage.cpp',
+            'libGLESv2/renderer/BufferStorage9.cpp',
+            'libGLESv2/renderer/BufferStorage9.h',
             'libGLESv2/renderer/FenceImpl.h',
             'libGLESv2/renderer/Fence9.cpp',
             'libGLESv2/renderer/Fence9.h',

src/libGLESv2/libGLESv2.vcxproj

@@ -247,6 +247,7 @@ copy "$(OutDir)libGLESv2.lib" "$(ProjectDir)..\..\lib\$(Configuration)\"
     <ClCompile Include="renderer\Fence11.cpp" />
     <ClCompile Include="renderer\Fence9.cpp" />
     <ClCompile Include="renderer\BufferStorage.cpp" />
+    <ClCompile Include="renderer\BufferStorage9.cpp" />
     <ClCompile Include="renderer\Image.cpp" />
     <ClCompile Include="renderer\Image9.cpp" />
     <ClCompile Include="renderer\IndexBuffer.cpp" />
@@ -310,6 +311,7 @@ copy "$(OutDir)libGLESv2.lib" "$(ProjectDir)..\..\lib\$(Configuration)\"
     <ClInclude Include="renderer\Fence9.h" />
     <ClInclude Include="renderer\FenceImpl.h" />
     <ClInclude Include="renderer\BufferStorage.h" />
+    <ClInclude Include="renderer\BufferStorage9.h" />
     <ClInclude Include="renderer\generatemip.h" />
     <ClInclude Include="renderer\Image.h" />
     <ClInclude Include="renderer\Image11.h" />

src/libGLESv2/libGLESv2.vcxproj.filters

@@ -194,6 +194,9 @@
     <ClCompile Include="renderer\BufferStorage.cpp">
       <Filter>Renderer</Filter>
     </ClCompile>
+    <ClCompile Include="renderer\BufferStorage9.cpp">
+      <Filter>Renderer</Filter>
+    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="BinaryStream.h">
@@ -445,6 +448,9 @@
     <ClInclude Include="renderer\BufferStorage.h">
       <Filter>Renderer</Filter>
     </ClInclude>
+    <ClInclude Include="renderer\BufferStorage9.h">
+      <Filter>Renderer</Filter>
+    </ClInclude>
   </ItemGroup>
   <ItemGroup>
     <None Include="libGLESv2.def">

src/libGLESv2/renderer/BufferStorage9.cpp

+//
+// Copyright (c) 2013 The ANGLE Project Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+//
+
+// BufferStorage9.cpp Defines the BufferStorage9 class.
+
+#include "libGLESv2/renderer/BufferStorage9.h"
+#include "libGLESv2/main.h"
+#include "common/debug.h"
+#include <stdlib.h>
+#include <string.h>
+
+namespace rx
+{
+
+BufferStorage9::BufferStorage9()
+{
+    mMemory = NULL;
+    mAllocatedSize = 0;
+    mSize = 0;
+}
+
+BufferStorage9::~BufferStorage9()
+{
+    delete[] mMemory;
+}
+
+BufferStorage9 *BufferStorage9::makeBufferStorage9(BufferStorage *bufferStorage)
+{
+    ASSERT(HAS_DYNAMIC_TYPE(BufferStorage9*, bufferStorage));
+    return static_cast<BufferStorage9*>(bufferStorage);
+}
+
+void *BufferStorage9::getData()
+{
+    return mMemory;
+}
+
+void BufferStorage9::setData(const void* data, unsigned int size, unsigned int offset)
+{
+    if (!mMemory || offset + size > mAllocatedSize)
+    {
+        unsigned int newAllocatedSize = offset + size;
+        void *newMemory = new char[newAllocatedSize];
+
+        if (offset > 0 && mMemory && mAllocatedSize > 0)
+        {
+            memcpy(newMemory, mMemory, std::min(offset, mAllocatedSize));
+        }
+
+        delete[] mMemory;
+        mMemory = newMemory;
+        mAllocatedSize = newAllocatedSize;
+    }
+
+    mSize = std::max(mSize, offset + size);
+    memcpy(reinterpret_cast<char*>(mMemory) + offset, data, size);
+}
+
+void BufferStorage9::clear()
+{
+    mSize = 0;
+}
+
+unsigned int BufferStorage9::getSize() const
+{
+    return mSize;
+}
+
+bool BufferStorage9::supportsDirectBinding() const
+{
+    return false;
+}
+
+}

src/libGLESv2/renderer/BufferStorage9.h

+//
+// Copyright (c) 2013 The ANGLE Project Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+//
+
+// BufferStorage9.h Defines the BufferStorage9 class.
+
+#ifndef LIBGLESV2_RENDERER_BUFFERSTORAGE9_H_
+#define LIBGLESV2_RENDERER_BUFFERSTORAGE9_H_
+
+#include "libGLESv2/renderer/BufferStorage.h"
+
+namespace rx
+{
+
+class BufferStorage9 : public BufferStorage
+{
+  public:
+    BufferStorage9();
+    virtual ~BufferStorage9();
+
+    static BufferStorage9 *makeBufferStorage9(BufferStorage *bufferStorage);
+
+    virtual void *getData();
+    virtual void setData(const void* data, unsigned int size, unsigned int offset);
+    virtual void clear();
+    virtual unsigned int getSize() const;
+    virtual bool supportsDirectBinding() const;
+
+  private:
+    DISALLOW_COPY_AND_ASSIGN(BufferStorage9);
+
+    void *mMemory;
+    unsigned int mAllocatedSize;
+
+    unsigned int mSize;
+};
+
+}
+
+#endif // LIBGLESV2_RENDERER_BUFFERSTORAGE9_H_