/*
* Copyright (c) 2016-2017, NVIDIA CORPORATION.  All rights reserved.
*
* NVIDIA CORPORATION and its licensors retain all intellectual property
* and proprietary rights in and to this software, related documentation
* and any modifications thereto.  Any use, reproduction, disclosure or
* distribution of this software and related documentation without an express
* license agreement from NVIDIA CORPORATION is strictly prohibited.
*/


#ifndef NVBLASTAUTHORINGFCUTOUTIMPL_H
#define NVBLASTAUTHORINGFCUTOUTIMPL_H

#include "NvBlastExtAuthoringCutout.h"
#include <vector>
#include "PxMat44.h" // TODO Should replace?

namespace Nv
{
namespace Blast
{

struct PolyVert
{
	uint16_t index;
	uint16_t flags;
};

struct ConvexLoop
{
	std::vector<PolyVert> polyVerts;
};

struct Cutout
{
	std::vector<physx::PxVec3> vertices;
	std::vector<ConvexLoop> convexLoops;
};

struct POINT2D
{
	POINT2D() {}
	POINT2D(int32_t _x, int32_t _y) : x(_x), y(_y) {}

	int32_t x;
	int32_t y;

	bool operator==(const POINT2D& other) const
	{
		return x == other.x && y == other.y;
	}
	bool operator<(const POINT2D& other) const
	{
		if (x == other.x) return y < other.y;
		return x < other.x;
	}
};

void convertTracesToIncremental(std::vector< std::vector<POINT2D>* >& traces);

struct CutoutSetImpl : public CutoutSet
{
	CutoutSetImpl() : periodic(false), dimensions(0.0f)
	{
	}

	uint32_t			getCutoutCount() const
	{
		return (uint32_t)cutouts.size();
	}

	uint32_t			getCutoutVertexCount(uint32_t cutoutIndex) const
	{
		return (uint32_t)cutouts[cutoutIndex].vertices.size();
	}
	uint32_t			getCutoutLoopCount(uint32_t cutoutIndex) const
	{
		return (uint32_t)cutouts[cutoutIndex].convexLoops.size();
	}

	const physx::PxVec3&	getCutoutVertex(uint32_t cutoutIndex, uint32_t vertexIndex) const
	{
		return cutouts[cutoutIndex].vertices[vertexIndex];
	}

	uint32_t			getCutoutLoopSize(uint32_t cutoutIndex, uint32_t loopIndex) const
	{
		return (uint32_t)cutouts[cutoutIndex].convexLoops[loopIndex].polyVerts.size();
	}

	uint32_t			getCutoutLoopVertexIndex(uint32_t cutoutIndex, uint32_t loopIndex, uint32_t vertexNum) const
	{
		return cutouts[cutoutIndex].convexLoops[loopIndex].polyVerts[vertexNum].index;
	}
	uint32_t			getCutoutLoopVertexFlags(uint32_t cutoutIndex, uint32_t loopIndex, uint32_t vertexNum) const
	{
		return cutouts[cutoutIndex].convexLoops[loopIndex].polyVerts[vertexNum].flags;
	}
	bool					isPeriodic() const
	{
		return periodic;
	}
	const physx::PxVec2&	getDimensions() const
	{
		return dimensions;
	}

	//void					serialize(physx::PxFileBuf& stream) const;
	//void					deserialize(physx::PxFileBuf& stream);

	void					release()
	{
		delete this;
	}

	std::vector<Cutout>		cutouts;
	bool					periodic;
	physx::PxVec2			dimensions;
};

void createCutoutSet(Nv::Blast::CutoutSetImpl& cutoutSet, const uint8_t* pixelBuffer, uint32_t bufferWidth, uint32_t bufferHeight,
	float segmentationErrorThreshold, float snapThreshold, bool periodic, bool expandGaps);


} // namespace Blast
} // namespace Nv

#endif // ifndef NVBLASTAUTHORINGFCUTOUTIMPL_H