/* Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).

 *

 * Permission is hereby granted, free of charge, to any person obtaining a

 * copy of this software and /or associated documentation files

 * (the "Materials "), to deal in the Materials without restriction,

 * including without limitation the rights to use, copy, modify, merge,

 * publish, distribute, sublicense, and/or sell copies of the Materials,

 * and to permit persons to whom the Materials are furnished to do so,

 * subject to the following conditions:

 *

 * The above copyright notice and this permission notice shall be included

 * in all copies or substantial portions of the Materials.

 *

 * THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,

 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF

 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.

 * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,

 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR

 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE MATERIALS OR

 * THE USE OR OTHER DEALINGS IN THE MATERIALS.

 *

 * Initial Contributors:

 * Nokia Corporation - initial contribution.

 *

 * Contributors:

 *

 * Description:

 *

 */

#ifndef _GLESARRAY_H_

#define _GLESARRAY_H_

#include <GLES/gl.h>

#include <cstddef>

#include "GLESBuffer.h"

class GLESArrayPointer

{

public:

	GLESArrayPointer();

	GLESArrayPointer(const void* pointer, int stride, int size, GLenum type);

	int Size() { return m_size; }

	GLenum Type() { return m_type; }

	bool operator!=(void* pointer) { return m_pointer != pointer; }

	GLESArrayPointer& operator+=(int step) { m_pointer += step * m_stride; return *this; }

	const void* operator[](int i) { return m_pointer + i * m_stride; }

private:

	const char* m_pointer;

	int m_stride;

	int m_size;

	GLenum m_type;

};

class GLESArray

{

public:

	GLESArray();

	GLESArray(int size, GLenum type, int stride, void* pointer, const GLESBuffer* buffer, bool ownsData=false);

	~GLESArray();

	int Size() const { return m_size; }

	GLenum Type() const { return m_type; }

	int Stride() const { return m_stride; }

	const void* Pointer() const { return m_pointer; }

	GLESArrayPointer ArrayPointer() const;

	const GLESBuffer* Buffer() const { return m_buffer; }

	unsigned int BufferName() const { return m_buffer ? m_buffer->name : 0; }

	const void* BufferPointer() const { return m_buffer ? m_buffer->data : NULL; }

	GLESArray* Convert(int count) const;

	void ReleaseBuffer() { m_buffer = NULL; }

private:

	int m_size;

	GLenum m_type;

	int m_stride;

	void* m_pointer;

	bool m_ownsData;

	const GLESBuffer* m_buffer;

};

#endif // _GLESARRAY_H_