/*
-----------------------------------------------------------------------------
This source file is part of OGRE
    (Object-oriented Graphics Rendering Engine)
For the latest info, see http://www.ogre3d.org/

Copyright (c) 2000-2011 Torus Knot Software Ltd

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
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 Software.

THE SOFTWARE IS 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 SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
-----------------------------------------------------------------------------
*/
#ifndef __D3D9MAPPINGS_H__
#define __D3D9MAPPINGS_H__

#include "CmD3D9Prerequisites.h"
#include "CmCommonEnums.h"
#include "CmRenderSystem.h"
#include "CmHardwareBuffer.h"
#include "CmIndexBuffer.h"

namespace CamelotEngine 
{
	class CM_D3D9_EXPORT D3D9Mappings
	{
	public:
		/// enum identifying D3D9 tex. types
		enum eD3DTexType
		{
			/// standard texture
			D3D_TEX_TYPE_NORMAL,
			/// cube texture
			D3D_TEX_TYPE_CUBE,
			/// volume texture
			D3D_TEX_TYPE_VOLUME,
			/// just to have it...
			D3D_TEX_TYPE_NONE
		};

		/// enum identifying D3D9 filter usage type
		enum eD3DFilterUsage
		{
			/// min filter
			D3D_FUSAGE_MIN,
			/// mag filter
			D3D_FUSAGE_MAG,
			/// mip filter
			D3D_FUSAGE_MIP
		};

		/// return a D3D9 equivalent for a Ogre TextureAddressingMode value
		static D3DTEXTUREADDRESS get(TextureAddressingMode tam, const D3DCAPS9& devCaps);
		/// return a D3D9 equivalent for a Ogre SceneBlendFactor value
		static D3DBLEND get(BlendFactor sbf);
		/// return a D3D9 equivlalent for a Ogre SceneBlendOperation value
		static D3DBLENDOP get(BlendOperation sbo);
		/// return a D3D9 equivalent for a Ogre CompareFunction value
		static DWORD get(CompareFunction cf);
		/// return a D3D9 equivalent for a Ogre CillingMode value
		static DWORD get(CullingMode cm, bool flip);
		/// return a D3D9 equivalent for a Ogre PolygonMode value
		static D3DFILLMODE get(PolygonMode level);
		/// return a D3D9 equivalent for a Ogre StencilOperation value
		static DWORD get(StencilOperation op, bool invert = false);
		/// return a D3D9 state type for Ogre FilterType value
		static D3DSAMPLERSTATETYPE get(FilterType ft);
		/// return a D3D9 filter option for Ogre FilterType & FilterOption value
		static DWORD get(FilterType ft, FilterOptions fo, const D3DCAPS9& devCaps, eD3DTexType texType);
		/// return the D3DtexType equivalent of a Ogre tex. type
		static eD3DTexType get(TextureType ogreTexType);
        /// return the combination of D3DUSAGE values for Ogre buffer usage
        static DWORD get(GpuBufferUsage usage);
        /// Get lock options
        static DWORD get(GpuLockOptions options, GpuBufferUsage usage);
        /// Get index type
        static D3DFORMAT get(IndexBuffer::IndexType itype);
		/// Get vertex data type
		static D3DDECLTYPE get(VertexElementType vType);
		/// Get vertex semantic
		static D3DDECLUSAGE get(VertexElementSemantic sem);
        // Convert matrix to D3D style
        static 	D3DXMATRIX makeD3DXMatrix( const Matrix4& mat );
        // Convert matrix from D3D style
        static Matrix4 convertD3DXMatrix( const D3DXMATRIX& mat );

		/// utility method, convert D3D9 pixel format to Ogre pixel format
		static PixelFormat _getPF(D3DFORMAT d3dPF);
		/// utility method, convert Ogre pixel format to D3D9 pixel format
		static D3DFORMAT _getPF(PixelFormat ogrePF);
		/// utility method, find closest Ogre pixel format that D3D9 can support
		static PixelFormat _getClosestSupportedPF(PixelFormat ogrePF);
	};
}
#endif
