genesis-3d_engine/Engine/graphicsystem/base/GraphicBufferData.h

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

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#ifndef __GRAPHICBUFFERDATA_H__
#define __GRAPHICBUFFERDATA_H__
#include "rendersystem/base/BufferData.h"
namespace Graphic
{
	class MemoryPool;
	class MemoryBlock
	{
	public:
		typedef uchar byte;
		typedef byte* byte_ptr;
		MemoryBlock();
		bool valid() const;
		SizeT size() const;

		//internal call

		void _set(MemoryPool* pool, SizeT begin, SizeT size);
		byte_ptr _getPtr() const;
		void _reset();
		MemoryPool* _getPool() const;
		friend class MemoryPool;
	private:
		MemoryPool* mParent;
		SizeT mBegin;
		SizeT mSize;
	};

	inline MemoryBlock::MemoryBlock()
		:mParent(NULL)
		,mBegin(0)
		,mSize(0)
	{

	}

	inline SizeT MemoryBlock::size() const
	{
		return mSize;
	}

	inline bool MemoryBlock::valid() const
	{
		return (NULL != mParent);
	}

	inline void MemoryBlock::_set(MemoryPool* pool, SizeT begin, SizeT size)
	{
		this->mParent = pool;
		this->mBegin = begin;
		this->mSize = size;
	}

	inline MemoryPool* MemoryBlock::_getPool() const
	{
		return mParent;
	}

	class Buffer
	{
	public:
		template<typename Type> 
		Type* GetBufferPtr() const;
		void* GetPtr() const;

		void _reset() const;
		const MemoryBlock& _getBlock() const;
	protected:
		Buffer();
		void setupBlock(SizeT blockSize);
		mutable MemoryBlock block;
	};
	inline Buffer::Buffer()
	{

	}

	template<typename Type>
	Type* Buffer::GetBufferPtr() const
	{
		return reinterpret_cast<Type*>(this->block._getPtr());
	}

	inline void* Buffer::GetPtr() const
	{
		return this->block._getPtr();
	}

	inline const MemoryBlock& Buffer::_getBlock() const
	{
		return block;
	}


	class DynamicBuffer : public Buffer
	{
	public:
		DynamicBuffer();

		void SetSize(SizeT blockSize);
	private:
		typedef Buffer Super;
	};

	inline DynamicBuffer::DynamicBuffer()
	{

	}

	inline void DynamicBuffer::SetSize(SizeT blockSize)
	{
		Super::setupBlock(blockSize);
	}


	//[zhongdaohuan]
	//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>У<EFBFBD>VertexBufferData2 <20><><EFBFBD><EFBFBD>IndexBufferData2<61><32>DynamicBuffer<65><72>ͬʱֻ<CAB1><D6BB><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڼ<EFBFBD><DABC><EFBFBD>״̬<D7B4><CCAC>
	//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD>á<EFBFBD><C3A1><EFBFBD><EFBFBD>򲻱<EFBFBD>֤<EFBFBD><D6A4>ȷ<EFBFBD>ԡ<EFBFBD><D4A1><EFBFBD>νʹ<CEBD>þ<EFBFBD><C3BE>ǵ<EFBFBD><C7B5><EFBFBD>
	//CreatePrimitiveHandle(const VertexBufferData2* vbd2, const IndexBufferData2* ibd2 /* = NULL */)
	//<2F><>UpdatePrimitiveHandle(RenderBase::PrimitiveHandle& handle, const DynamicBuffer* vertices, const DynamicBuffer* indices /* = NULL */)
	//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>߼<EFBFBD>û<EFBFBD><C3BB><EFBFBD><EFBFBD><EFBFBD>⡣
	class VertexBufferData2 : public Buffer
	{
	public:
		void Setup(SizeT vertexCount, SizeT vertexSize, RenderBase::BufferData::Usage usage, RenderBase::PrimitiveTopology::Code topology, bool hasMemBlock);
		void SetVertices(void* from, SizeT elemCount);
		RenderBase::VertexComponents& GetVertexComponents();

		void _Bind() const;
		const RenderBase::VertexBufferData& _GetVertexBufferData() const;
	protected:
		typedef Buffer Super;
		mutable RenderBase::VertexBufferData base;
	};

	inline RenderBase::VertexComponents& VertexBufferData2::GetVertexComponents()
	{
		return this->base.vertex.vertexComponents;
	}

	inline const RenderBase::VertexBufferData& VertexBufferData2::_GetVertexBufferData() const
	{
		return base;
	}
	//[zhongdaohuan]
	//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>У<EFBFBD>VertexBufferData2 <20><><EFBFBD><EFBFBD>IndexBufferData2<61><32>DynamicBuffer<65><72>ͬʱֻ<CAB1><D6BB><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڼ<EFBFBD><DABC><EFBFBD>״̬<D7B4><CCAC>
	//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD>á<EFBFBD><C3A1><EFBFBD><EFBFBD>򲻱<EFBFBD>֤<EFBFBD><D6A4>ȷ<EFBFBD>ԡ<EFBFBD><D4A1><EFBFBD>νʹ<CEBD>þ<EFBFBD><C3BE>ǵ<EFBFBD><C7B5><EFBFBD>
	//CreatePrimitiveHandle(const VertexBufferData2* vbd2, const IndexBufferData2* ibd2 /* = NULL */)
	//<2F><>UpdatePrimitiveHandle(RenderBase::PrimitiveHandle& handle, const DynamicBuffer* vertices, const DynamicBuffer* indices /* = NULL */)
	//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>߼<EFBFBD>û<EFBFBD><C3BB><EFBFBD><EFBFBD><EFBFBD>⡣
	class IndexBufferData2 : public Buffer
	{
	public:

		void Setup(SizeT indexCount, RenderBase::BufferData::Usage usage, RenderBase::IndexBufferData::IndexType type, bool hasMemBlock);
		void SetIndices(void* from, SizeT elemCount);
		void _Bind() const;
		const RenderBase::IndexBufferData& _GetIndexBufferData() const;
	protected:		
		typedef Buffer Super;
		mutable RenderBase::IndexBufferData base;
	};

	inline const RenderBase::IndexBufferData& IndexBufferData2::_GetIndexBufferData() const
	{
		return base;
	}



}

#endif //__GRAPHICBUFFERDATA_H__