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#ifndef _OCEAN_HULL_PROFILE_H
#define _OCEAN_HULL_PROFILE_H

#include <d3d11.h>

class OceanHullProfile {

public:

	OceanHullProfile() :
		m_pSRV(0)
	{
	}

	OceanHullProfile(ID3D11ShaderResourceView* pSRV) :
		m_pSRV(pSRV)
	{
		m_pSRV->AddRef();
	}

	OceanHullProfile(const OceanHullProfile& rhs)
	{
		*this = rhs;
	}

	OceanHullProfile& operator=(const OceanHullProfile& rhs)
	{
		if(this != &rhs) {
			SAFE_RELEASE(m_pSRV);
			m_pSRV = rhs.m_pSRV;
			m_WorldToProfileCoordsOffset = rhs.m_WorldToProfileCoordsOffset;
			m_WorldToProfileCoordsScale = rhs.m_WorldToProfileCoordsScale;
			m_ProfileToWorldHeightOffset = rhs.m_ProfileToWorldHeightOffset;
			m_ProfileToWorldHeightScale = rhs.m_ProfileToWorldHeightScale;
			m_TexelSizeInWorldSpace = rhs.m_TexelSizeInWorldSpace;

			if(m_pSRV) {
				m_pSRV->AddRef();
			}
		}

		return *this;
	}

	~OceanHullProfile()
	{
		SAFE_RELEASE(m_pSRV);
	}

	ID3D11ShaderResourceView* GetSRV() const { return m_pSRV; }

	// For generating lookup coords from world coords: uv = offset + scale * world_pos
	D3DXVECTOR2 m_WorldToProfileCoordsOffset;
	D3DXVECTOR2 m_WorldToProfileCoordsScale;

	// For generating a world height from lookup: world_height = offset + scale * lookup
	FLOAT m_ProfileToWorldHeightOffset;
	FLOAT m_ProfileToWorldHeightScale;

	// For choosing the right mip
	FLOAT m_TexelSizeInWorldSpace;

private:

	// The SRV for doing the lookup
	ID3D11ShaderResourceView* m_pSRV;
};

#endif	// _OCEAN_HULL_PROFILE_H