genesis-3d_engine/Engine/graphicsystem/Material/Material.h

/****************************************************************************
Copyright (c) 2011-2013,WebJet Business Division,CYOU

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****************************************************************************/
#ifndef MATERIAL_H_
#define MATERIAL_H_
#include "MaterialTech.h"
#include "GlobalShaderParam.h"
#include "graphicsystem/base/RenderQueue.h"
namespace Graphic
{

	class RenderLayerConverter
	{
	public:
		static inline RenderLayer Convert(uint value)
		{
			return static_cast<RenderLayer>(value);
		}

		static inline uint Convert(RenderLayer value)
		{
			return static_cast<uint>(value);
		}
	};;

	enum ParamFindResult
	{		
		ePFR_Succeed = 0,
		ePFR_NotFound,
		ePFR_TypeError,

	};


	class Material : public Core::RefCounted
	{
		__DeclareSubClass(Material,Core::RefCounted)
	public:	
		Material();
		virtual ~Material();
		void SetName(const Util::String& name);
		const Util::String& GetName() const;
		void SetShaderInstanceID(uint id);
		uint GetShaderInstanceID() const;

		void AddTech(const GPtr<MaterialTech>& tech);
		const GPtr<MaterialTech>& GetTech(SizeT index = 0) const;
		const MaterialTechList& GetTechList() const;
		void AddParams(const MaterialParamList& param);
		const MaterialParamList& GetParamList() const;
		void SetRenderQueue(RenderQueue rqt);
		const RenderQueue& GetRenderQueue() const;
		void SetRenderLayer(RenderLayer rl);
		const RenderLayer& GetRenderLayer() const;
		virtual void Clone(const GPtr<Material>& from);
		virtual void Discard();



		Util::Dictionary<IndexT, IndexT> GetRegisterIndex(const Util::String& name, ShaderCodeType area,  IndexT iPass) const ;

		ParamFindResult find(const Util::String& paramName, MaterialParam*& param);
		ParamFindResult findFloat(const Util::String& paramName, MaterialParamFloat*& param);
		ParamFindResult findVector(const Util::String& paramName, MaterialParamVector*& param);
		ParamFindResult findMatrix(const Util::String& paramName, MaterialParamMatrix*& param);
		ParamFindResult findTexture(const Util::String& paramName, MaterialParamTexture*& param);



		static GlobalMaterialParam* GetGlobalMaterialParams();
		static void RemoveGlobalMaterialParams();
		static void SetupGlobalMaterialParams();

		static GPtr<Material> s_defaultFallBackMat;

		// internal call.
		// used for build a binding map for shader parameter and gpu register.
		void _BuildBindingMap();
	protected:
		void _CloneParamList(const MaterialParamList& param);
	private:		
		void _CloneTechList(const MaterialTechList& from);
		void _DiscardMaterialParamList();

		static GPtr<GlobalMaterialParam> pGMP;
		Util::String m_name;
		MaterialParamList m_paramList;
		MaterialTechList m_techList;
		GPtr<MaterialTech> m_fallBackTech;
		RenderQueue m_renderQueue;
		RenderLayer m_renderLayer;
		uint m_shaderInstacneID;//ʹ<><CAB9><EFBFBD><EFBFBD>ͬshader<65>ļ<EFBFBD><C4BC>IJ<EFBFBD><C4B2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>id<69><64><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD>ġ<EFBFBD>
	};

	inline void Material::SetName(const Util::String& name)
	{
		m_name = name;
	}

	inline const Util::String& Material::GetName() const
	{
		return m_name;
	}

	inline void Material::SetShaderInstanceID(uint id)
	{
		m_shaderInstacneID = id;
	}

	inline uint Material::GetShaderInstanceID() const
	{
		return m_shaderInstacneID;
	}


	inline const MaterialParamList& Material::GetParamList() const
	{
		return m_paramList;
	}

	inline void Material::AddTech(const GPtr<MaterialTech>& tech)
	{
		m_techList.Append(tech);
	}

	inline const GPtr<MaterialTech>& Material::GetTech(SizeT index) const
	{
		return m_techList[index];
	}

	inline const MaterialTechList& Material::GetTechList() const
	{
		return m_techList;
	}

	inline void Material::SetRenderQueue(RenderQueue rqt)
	{
		m_renderQueue = rqt;
	}

	inline const RenderQueue& Material::GetRenderQueue() const
	{
		return m_renderQueue;
	}

	inline void Material::SetRenderLayer(RenderLayer rl)
	{
		m_renderLayer = rl;
	}

	inline const RenderLayer& Material::GetRenderLayer() const
	{
		return m_renderLayer;
	}

	inline GlobalMaterialParam* Material::GetGlobalMaterialParams()
	{
		if (!pGMP.isvalid())
		{
			SetupGlobalMaterialParams();
		}

		return GlobalMaterialParam::Instance();
	}

	inline void Material::SetupGlobalMaterialParams()
	{
		pGMP = GlobalMaterialParam::Create();
	}

	inline void Material::RemoveGlobalMaterialParams()
	{
		if (pGMP.isvalid())
		{
			pGMP = 0;
		}
		n_assert(!pGMP.isvalid())

			if (s_defaultFallBackMat.isvalid())
			{
				s_defaultFallBackMat = 0;
			}
			n_assert(!s_defaultFallBackMat.isvalid())
	}
}

#endif