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#ifndef _GFSDK_WAVEWORKS_D3D_UTIL_H
#define _GFSDK_WAVEWORKS_D3D_UTIL_H

#include <GFSDK_WaveWorks_Types.h>

using namespace DirectX;

// Convenience functions for converting between DX and NV types when using the WaveWorks API
// This header should be #included *AFTER* d3d and d3dx headers

////////////////////////////////////////////////////////////////////////////////
// Conversion helpers
////////////////////////////////////////////////////////////////////////////////
__GFSDK_INLINE__ XMFLOAT2 NvToDX(const gfsdk_float2& rhs) {
	XMFLOAT2 result;
	result.x = rhs.x;
	result.y = rhs.y;
	return result;
}

__GFSDK_INLINE__ gfsdk_float2 NvFromDX(const XMFLOAT2& rhs) {
	gfsdk_float2 result;
	result.x = rhs.x;
	result.y = rhs.y;
	return result;
}

__GFSDK_INLINE__ XMFLOAT4 NvToDX(const gfsdk_float4& rhs) {
	XMFLOAT4 result;
	result.x = rhs.x;
	result.y = rhs.y;
	result.z = rhs.z;
	result.w = rhs.w;
	return result;
}

__GFSDK_INLINE__ gfsdk_float4 NvFromDX(const XMFLOAT4& rhs) {
	gfsdk_float4 result;
	result.x = rhs.x;
	result.y = rhs.y;
	result.z = rhs.z;
	result.w = rhs.w;
	return result;
}

__GFSDK_INLINE__ XMMATRIX NvToDX(const gfsdk_float4x4& rhs) {

	return XMMATRIX(rhs._11, rhs._12, rhs._13, rhs._14,
					rhs._21, rhs._22, rhs._23, rhs._24,
					rhs._31, rhs._32, rhs._33, rhs._34,
					rhs._41, rhs._42, rhs._43, rhs._44);
}

__GFSDK_INLINE__ gfsdk_float4x4 NvFromDX(const XMMATRIX& rhs) {

	gfsdk_float4x4 result;

	//NOTE: Not happy with using a reinterpret_cast here.
	XMStoreFloat4x4(reinterpret_cast<XMFLOAT4X4*>(&result), rhs);

	return result;
}

__GFSDK_INLINE__ gfsdk_float4x4 NvFromGL(const float* rhs) {

	gfsdk_float4x4 result;

	result._11 = rhs[0];
	result._12 = rhs[1];
	result._13 = rhs[2];
	result._14 = rhs[3];

	result._21 = rhs[4];
	result._22 = rhs[5];
	result._23 = rhs[6];
	result._24 = rhs[7];

	result._31 = rhs[8];
	result._32 = rhs[9];
	result._33 = rhs[10];
	result._34 = rhs[11];

	result._41 = rhs[12];
	result._42 = rhs[13];
	result._43 = rhs[14];
	result._44 = rhs[15];

	return result;
}

#endif	// _GFSDK_WAVEWORKS_D3D_UTIL_H