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

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

http://www.genesis-3d.com.cn

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
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The above copyright notice and this permission notice shall be included in
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
****************************************************************************/
#ifndef __graphicobjectmanager_H__
#define __graphicobjectmanager_H__
#include "graphicsystem/GraphicSystem.h"
#include "resource/meshres.h"
#include "resource/imageres.h"
#include "util/dictionary.h"
#include "graphicsystem/Material/materialinstance.h"
#include "rendersystem/base/PrimitiveGroup.h"
#include "rendersystem/base/Texture.h"
#include "rendersystem/base/BufferData.h"
#include "Material/MaterialManager.h"


namespace App
{
	class GraphicObjectManager;

	/*
	for mesh resource.
	*/
	class RenderMeshNotifier: public Resources::ResourceNotifier
	{
		__DeclareSubClass(RenderMeshNotifier,  Resources::ResourceNotifier );
	public:
		RenderMeshNotifier() { }
		virtual ~RenderMeshNotifier() { }
	protected:
		virtual void Notify(Resources::Resource* res, Resources::Resource::State preState );

	};

	/*
	for texture resource.
	*/
	class RenderTextureNotifier: public Resources::ResourceNotifier
	{
		__DeclareSubClass(RenderTextureNotifier,  Resources::ResourceNotifier );
	public:
		RenderTextureNotifier() { }
		virtual ~RenderTextureNotifier() { }
	protected:
		virtual void Notify(Resources::Resource* res, Resources::Resource::State preState );
	};


	class GraphicObjectManager : public Core::RefCounted
	{
		__DeclareClass(GraphicObjectManager);
		__DeclareImageSingleton(GraphicObjectManager);
	public:
		GraphicObjectManager();
		virtual ~GraphicObjectManager();

		// @ App::Manager::OnActivate
		virtual void OnActivate();

		/// @ App::Manager::OnDeactivate();
		virtual void OnDeactivate();    

		RenderBase::PrimitiveHandle CreatePrimitiveHandle(const GPtr<Resources::MeshRes>& mesh);
		void UpdataPrimitiveHandle( const GPtr<Resources::MeshRes>& mesh);
		void DiscardPrimitiveHandle( const RenderBase::PrimitiveHandle& handle );

		RenderBase::TextureHandle CreateTextureHandle( const GPtr<Resources::ImageRes>& image );
		void UpdataTextureHandle( const GPtr<Resources::ImageRes>& image );
		void DiscardTextureHandle( const RenderBase::TextureHandle& handle );

		GPtr<Graphic::MaterialInstanceManager>& GetMaterialInstanceManager();

		static void CopyVBOData(const GPtr<Resources::MeshRes>& mesh, const Util::Array<RenderBase::VertexComponent>& verDeclare, SizeT& vertexSize, SizeT& numVertices, uchar* out);
		static void BuildVBData(const GPtr<Resources::MeshRes>& mesh, const RenderBase::VertexComponents& verDeclare, RenderBase::VertexStreams& streams);
	protected:

		RenderBase::PrimitiveHandle _BuildPrimitive(const GPtr<Resources::MeshRes>& mesh);
		void _ErasePrimitive(const RenderBase::PrimitiveHandle& handle );

		GPtr<RenderBase::Texture> _BuildTextureData(const GPtr<Resources::ImageRes>& image);
		RenderBase::TextureHandle _BuildTexture(const GPtr<Resources::ImageRes>& image );
		void _EraseTexture(const RenderBase::TextureHandle& handle);

		static bool _BuildBufferData(RenderBase::VertexBufferData& vbd, RenderBase::IndexBufferData& ibd,const GPtr<Resources::MeshRes>& mesh);


	protected:
		template<typename T>
		struct ResourceRef 
		{
			ResourceRef(): refCount(0) { }
			ResourceRef(const GPtr<T>& t): res(t), refCount(1) { }
			GPtr<T> res;
			IndexT refCount;
		};

		typedef ResourceRef<Resources::MeshRes>  MeshRef;
		typedef ResourceRef<Resources::ImageRes> ImageRef;
		typedef ResourceRef<Graphic::Material> Material;

		typedef Util::Dictionary<RenderBase::PrimitiveHandle, MeshRef> PrimitiveMap;
		typedef Util::Dictionary<Resources::ResourceId, RenderBase::PrimitiveHandle> ReversePrimitiveMap;

		typedef Util::Dictionary<RenderBase::TextureHandle, ImageRef> TextureMap;
		typedef Util::Dictionary<Resources::ResourceId, RenderBase::TextureHandle> ReverseTextureMap;



		PrimitiveMap mPrimitives;
		ReversePrimitiveMap mReversePrimitives;

		TextureMap mTextures;
		ReverseTextureMap mReverseTextures;



		GPtr<RenderMeshNotifier> mMeshNotifier;
		GPtr<RenderTextureNotifier> mTexNotifier;
		GPtr<Graphic::MaterialInstanceManager> mMaterialInstanceManager;

	public:
		intptr_t m_MainThreadID;
	};
	inline GPtr<Graphic::MaterialInstanceManager>& GraphicObjectManager::GetMaterialInstanceManager()
	{
		return mMaterialInstanceManager;
	}

}









#endif // __graphicobjectmanager_H__