/*
**  ClanLib SDK
**  Copyright (c) 1997-2020 The ClanLib Team
**
**  This software is provided 'as-is', without any express or implied
**  warranty.  In no event will the authors be held liable for any damages
**  arising from the use of this software.
**
**  Permission is granted to anyone to use this software for any purpose,
**  including commercial applications, and to alter it and redistribute it
**  freely, subject to the following restrictions:
**
**  1. The origin of this software must not be misrepresented; you must not
**     claim that you wrote the original software. If you use this software
**     in a product, an acknowledgment in the product documentation would be
**     appreciated but is not required.
**  2. Altered source versions must be plainly marked as such, and must not be
**     misrepresented as being the original software.
**  3. This notice may not be removed or altered from any source distribution.
**
**  Note: Some of the libraries ClanLib may link to may have additional
**  requirements or restrictions.
**
**  File Author(s):
**
**    Magnus Norddahl
*/

#pragma once

#include "../Render/primitives_array.h"

namespace clan
{
	/// \addtogroup clanDisplay_Display clanDisplay Display
	/// \{

	/// \brief Interface for implementing a PrimitivesArray target.
	class PrimitivesArrayProvider
	{
	public:
		virtual ~PrimitivesArrayProvider() { return; }

		class VertexData
		{
		public:
			VertexData(VertexArrayBufferProvider *array_provider, VertexAttributeDataType type, size_t offset, int size, int stride) :
				array_provider(array_provider), type(type), offset(offset), size(size), stride(stride) {}

			VertexData() : array_provider(), type(), offset(), size(), stride() {}

			VertexArrayBufferProvider *array_provider;
			VertexAttributeDataType type;
			size_t offset;
			int size;
			int stride;
		};

		/// \brief Sets a vertex attribute.
		virtual void set_attribute(int index, const VertexData &data, bool normalize = false) = 0;
	};

	/// \}
}
