Added abstract IndexBuffer class.

src/libGLESv2/renderer/IndexBuffer.cpp

@@ -14,6 +14,28 @@
 namespace rx
 {
 
+unsigned int IndexBuffer::mNextSerial = 1;
+
+IndexBuffer::IndexBuffer()
+{
+    updateSerial();
+}
+
+IndexBuffer::~IndexBuffer()
+{
+}
+
+unsigned int IndexBuffer::getSerial() const
+{
+    return mSerial;
+}
+
+void IndexBuffer::updateSerial()
+{
+    mSerial = mNextSerial++;
+}
+
+
 unsigned int IndexBufferInterface::mCurrentSerial = 1;
 
 IndexBufferInterface::IndexBufferInterface(rx::Renderer9 *renderer, UINT size, D3DFORMAT format) : mRenderer(renderer), mBufferSize(size), mIndexBuffer(NULL)

src/libGLESv2/renderer/IndexBuffer.h

@@ -24,6 +24,35 @@ namespace rx
 
 class Renderer9;
 
+class IndexBuffer
+{
+  public:
+    IndexBuffer();
+    virtual ~IndexBuffer();
+
+    virtual bool initialize(unsigned int bufferSize, GLenum indexType, bool dynamic) = 0;
+
+    virtual bool mapBuffer(unsigned int offset, unsigned int size, void** outMappedMemory) = 0;
+    virtual bool unmapBuffer() = 0;
+
+    virtual bool discard() = 0;
+
+    virtual GLenum getIndexType() const = 0;
+    virtual unsigned int getBufferSize() const = 0;
+    virtual bool setSize(unsigned int bufferSize, GLenum indexType) = 0;
+
+    unsigned int getSerial() const;
+
+  protected:
+    void updateSerial();
+
+  private:
+    DISALLOW_COPY_AND_ASSIGN(IndexBuffer);
+
+    unsigned int mSerial;
+    static unsigned int mNextSerial;
+};
+
 class IndexBufferInterface
 {
   public: