DStreamApiV2.txt

enum CoderType { PACKED = 0, MORTON, HILBERT, PACKED, PHASE, TRIANGLE, HUE };

struct SpacingTable
{
	std::vector<uint16_t> Enlarge[3];
	std::vector<uint16_t> Shrink[3];
};

class / header Processing
{
	static void Quantize(uint16_t* values, uint32_t nElements, uint8_t quantization);
	static void Quantize(uint16_t& value, uint8_t quantization);
	
	static void RemoveOutliersMedian(uint16_t* source, uint32_t rowWidth, uint32_t threshold);
	static void RemoveOutliersSelective(uint16_t* source, uint32_t rowWidth, uint32_t threshold);
};

template <typename CoderImplementation>
class Coder
{
	public:
		// Tables
		Coder(uint8_t quantization, bool enlarge, uint8_t algoBits, bool useTables);
		
		void Encode(const uint16_t* source, Color* dest, uint32_t nElements);
		// Interpolate values from the table if necessary
		void Decode(const Color* source, uint16_t* dest, uint32_t nElements);
		
		void GenerateTables();
		void SetSpacingTables(SpacingTable tables);
		void SetEncodingTable(const std::vector<Color>& table);
		void SetDecodingTable(const std::vector<uint16_t>& table, uint32_t tableSideX, uint32_t tableSideY, uint32_t tableSideZ);

		void Enlarge(Color* source, uint32_t nElements);
		void Shrink(Color* source, uint32_t nElements);
		
	private:
		CoderImplementation m_Implementation;
		
		bool m_UseTables;
		SpacingTable m_SpacingTable;
		std::unordered_map<uint16_t, Color> m_EncodingTable;
		std::unordered_map<Color, uint16_t> m_DecodingTable;
};

class AlgorithmImplementation
{
	public:
		AlgorithmImplementation(uint8_t quantization, bool enlarge, uint8_t algoBits);
		
	protected:
		uint8_t m_Quantization;
		uint8_t m_AlgoBits;
		uint8_t m_SegmentBits;
		bool m_Enlarge;
};

class HilbertImplementation : AlgorithmImplementation
{
	public:
		HilbertCoder(uint8_t quantization, bool enlarge, uint8_t algoBits);
		
		Color EncodeValue(uint16_t value);
		uint16_t DecodeValue(Color value);

	private:
		void SubdivideValue(Color& value, Color& nextValue, uint8_t fract);
		uint16_t UnsubdivideValue(Color& value, Color& nextValue);
};

// Benchmark

DepthmapReader
ImageWriter
Timer

// Encode / Decode con tabella, implementazione dentro encode / decode