/// <summary>
/// Reads a <see cref="IccLutBToATagDataEntry"/>
/// </summary>
/// <returns>The read entry</returns>
public IccLutBToATagDataEntry ReadLutBtoATagDataEntry()
{
int start = this.currentIndex - 8; // 8 is the tag header size
byte inChCount = this.data[this.AddIndex(1)];
byte outChCount = this.data[this.AddIndex(1)];
this.AddIndex(2); // 2 bytes reserved
uint bCurveOffset = this.ReadUInt32();
uint matrixOffset = this.ReadUInt32();
uint mCurveOffset = this.ReadUInt32();
uint clutOffset = this.ReadUInt32();
uint aCurveOffset = this.ReadUInt32();
IccTagDataEntry[] bCurve = null;
IccTagDataEntry[] mCurve = null;
IccTagDataEntry[] aCurve = null;
IccClut clut = null;
float[,] matrix3x3 = null;
float[] matrix3x1 = null;
if (bCurveOffset != 0)
{
this.currentIndex = (int)bCurveOffset + start;
bCurve = this.ReadCurves(inChCount);
}
if (mCurveOffset != 0)
{
this.currentIndex = (int)mCurveOffset + start;
mCurve = this.ReadCurves(inChCount);
}
if (aCurveOffset != 0)
{
this.currentIndex = (int)aCurveOffset + start;
aCurve = this.ReadCurves(outChCount);
}
if (clutOffset != 0)
{
this.currentIndex = (int)clutOffset + start;
clut = this.ReadClut(inChCount, outChCount, false);
}
if (matrixOffset != 0)
{
this.currentIndex = (int)matrixOffset + start;
matrix3x3 = this.ReadMatrix(3, 3, false);
matrix3x1 = this.ReadMatrix(3, false);
}
return(new IccLutBToATagDataEntry(bCurve, matrix3x3, matrix3x1, mCurve, clut, aCurve));
}
/// <summary>
/// Initializes a new instance of the <see cref="IccLutAToBTagDataEntry"/> class.
/// </summary>
/// <param name="curveB">B Curve</param>
/// <param name="matrix3x3">Two dimensional conversion matrix (3x3)</param>
/// <param name="matrix3x1">One dimensional conversion matrix (3x1)</param>
/// <param name="curveM">M Curve</param>
/// <param name="clutValues">CLUT</param>
/// <param name="curveA">A Curve</param>
public IccLutAToBTagDataEntry(
IccTagDataEntry[] curveB,
float[,] matrix3x3,
float[] matrix3x1,
IccTagDataEntry[] curveM,
IccClut clutValues,
IccTagDataEntry[] curveA)
: this(curveB, matrix3x3, matrix3x1, curveM, clutValues, curveA, IccProfileTag.Unknown)
{
}
/// <summary>
/// Initializes a new instance of the <see cref="IccLut16TagDataEntry"/> class.
/// </summary>
/// <param name="matrix">Conversion matrix (must be 3x3)</param>
/// <param name="inputValues">Input LUT</param>
/// <param name="clutValues">CLUT</param>
/// <param name="outputValues">Output LUT</param>
/// <param name="tagSignature">Tag Signature</param>
public IccLut16TagDataEntry(float[,] matrix, IccLut[] inputValues, IccClut clutValues, IccLut[] outputValues, IccProfileTag tagSignature)
: base(IccTypeSignature.Lut16, tagSignature)
{
Guard.NotNull(matrix, nameof(matrix));
bool is3By3 = matrix.GetLength(0) == 3 && matrix.GetLength(1) == 3;
Guard.IsTrue(is3By3, nameof(matrix), "Matrix must have a size of three by three");
this.Matrix = CreateMatrix(matrix);
this.InputValues = inputValues ?? throw new ArgumentNullException(nameof(inputValues));
this.ClutValues = clutValues ?? throw new ArgumentNullException(nameof(clutValues));
this.OutputValues = outputValues ?? throw new ArgumentNullException(nameof(outputValues));
Guard.IsTrue(this.InputChannelCount == clutValues.InputChannelCount, nameof(clutValues), "Input channel count does not match the CLUT size");
Guard.IsTrue(this.OutputChannelCount == clutValues.OutputChannelCount, nameof(clutValues), "Output channel count does not match the CLUT size");
}
/// <summary>
/// Reads a <see cref="IccLut16TagDataEntry"/>
/// </summary>
/// <returns>The read entry</returns>
public IccLut16TagDataEntry ReadLut16TagDataEntry()
{
byte inChCount = this.data[this.AddIndex(1)];
byte outChCount = this.data[this.AddIndex(1)];
byte clutPointCount = this.data[this.AddIndex(1)];
this.AddIndex(1); // 1 byte reserved
float[,] matrix = this.ReadMatrix(3, 3, false);
ushort inTableCount = this.ReadUInt16();
ushort outTableCount = this.ReadUInt16();
// Input LUT
var inValues = new IccLut[inChCount];
byte[] gridPointCount = new byte[inChCount];
for (int i = 0; i < inChCount; i++)
{
inValues[i] = this.ReadLut16(inTableCount);
gridPointCount[i] = clutPointCount;
}
// CLUT
IccClut clut = this.ReadClut16(inChCount, outChCount, gridPointCount);
// Output LUT
var outValues = new IccLut[outChCount];
for (int i = 0; i < outChCount; i++)
{
outValues[i] = this.ReadLut16(outTableCount);
}
return(new IccLut16TagDataEntry(matrix, inValues, clut, outValues));
}
/// <summary>
/// Initializes a new instance of the <see cref="IccLut16TagDataEntry"/> class.
/// </summary>
/// <param name="matrix">Conversion matrix (must be 3x3)</param>
/// <param name="inputValues">Input LUT</param>
/// <param name="clutValues">CLUT</param>
/// <param name="outputValues">Output LUT</param>
public IccLut16TagDataEntry(float[,] matrix, IccLut[] inputValues, IccClut clutValues, IccLut[] outputValues)
: this(matrix, inputValues, clutValues, outputValues, IccProfileTag.Unknown)
{
}
/// <summary>
/// Initializes a new instance of the <see cref="IccLut16TagDataEntry"/> class.
/// </summary>
/// <param name="inputValues">Input LUT</param>
/// <param name="clutValues">CLUT</param>
/// <param name="outputValues">Output LUT</param>
/// <param name="tagSignature">Tag Signature</param>
public IccLut16TagDataEntry(IccLut[] inputValues, IccClut clutValues, IccLut[] outputValues, IccProfileTag tagSignature)
: this(IdentityMatrix, inputValues, clutValues, outputValues, tagSignature)
{
}
/// <summary>
/// Initializes a new instance of the <see cref="IccLut16TagDataEntry"/> class.
/// </summary>
/// <param name="inputValues">Input LUT</param>
/// <param name="clutValues">CLUT</param>
/// <param name="outputValues">Output LUT</param>
public IccLut16TagDataEntry(IccLut[] inputValues, IccClut clutValues, IccLut[] outputValues)
: this(IdentityMatrix, inputValues, clutValues, outputValues, IccProfileTag.Unknown)
{
}
/// <summary>
/// Initializes a new instance of the <see cref="IccLutAToBTagDataEntry"/> class.
/// </summary>
/// <param name="curveB">B Curve</param>
/// <param name="matrix3x3">Two dimensional conversion matrix (3x3)</param>
/// <param name="matrix3x1">One dimensional conversion matrix (3x1)</param>
/// <param name="curveM">M Curve</param>
/// <param name="clutValues">CLUT</param>
/// <param name="curveA">A Curve</param>
/// <param name="tagSignature">Tag Signature</param>
public IccLutAToBTagDataEntry(
IccTagDataEntry[] curveB,
float[,] matrix3x3,
float[] matrix3x1,
IccTagDataEntry[] curveM,
IccClut clutValues,
IccTagDataEntry[] curveA,
IccProfileTag tagSignature)
: base(IccTypeSignature.LutAToB, tagSignature)
{
this.VerifyMatrix(matrix3x3, matrix3x1);
this.VerifyCurve(curveA, nameof(curveA));
this.VerifyCurve(curveB, nameof(curveB));
this.VerifyCurve(curveM, nameof(curveM));
this.Matrix3x3 = this.CreateMatrix3x3(matrix3x3);
this.Matrix3x1 = this.CreateMatrix3x1(matrix3x1);
this.CurveA = curveA;
this.CurveB = curveB;
this.CurveM = curveM;
this.ClutValues = clutValues;
if (this.IsAClutMMatrixB())
{
Guard.IsTrue(this.CurveB.Length == 3, nameof(this.CurveB), $"{nameof(this.CurveB)} must have a length of three");
Guard.IsTrue(this.CurveM.Length == 3, nameof(this.CurveM), $"{nameof(this.CurveM)} must have a length of three");
Guard.MustBeBetweenOrEqualTo(this.CurveA.Length, 1, 15, nameof(this.CurveA));
this.InputChannelCount = curveA.Length;
this.OutputChannelCount = 3;
Guard.IsTrue(this.InputChannelCount == clutValues.InputChannelCount, nameof(clutValues), "Input channel count does not match the CLUT size");
Guard.IsTrue(this.OutputChannelCount == clutValues.OutputChannelCount, nameof(clutValues), "Output channel count does not match the CLUT size");
}
else if (this.IsMMatrixB())
{
Guard.IsTrue(this.CurveB.Length == 3, nameof(this.CurveB), $"{nameof(this.CurveB)} must have a length of three");
Guard.IsTrue(this.CurveM.Length == 3, nameof(this.CurveM), $"{nameof(this.CurveM)} must have a length of three");
this.InputChannelCount = this.OutputChannelCount = 3;
}
else if (this.IsAClutB())
{
Guard.MustBeBetweenOrEqualTo(this.CurveA.Length, 1, 15, nameof(this.CurveA));
Guard.MustBeBetweenOrEqualTo(this.CurveB.Length, 1, 15, nameof(this.CurveB));
this.InputChannelCount = curveA.Length;
this.OutputChannelCount = curveB.Length;
Guard.IsTrue(this.InputChannelCount == clutValues.InputChannelCount, nameof(clutValues), "Input channel count does not match the CLUT size");
Guard.IsTrue(this.OutputChannelCount == clutValues.OutputChannelCount, nameof(clutValues), "Output channel count does not match the CLUT size");
}
else if (this.IsB())
{
this.InputChannelCount = this.OutputChannelCount = this.CurveB.Length;
}
else
{
throw new ArgumentException("Invalid combination of values given");
}
}
/// <summary>
/// Initializes a new instance of the <see cref="IccClutProcessElement"/> class.
/// </summary>
/// <param name="clutValue">The color lookup table of this element</param>
public IccClutProcessElement(IccClut clutValue)
: base(IccMultiProcessElementSignature.Clut, clutValue?.InputChannelCount ?? 1, clutValue?.OutputChannelCount ?? 1)
{
this.ClutValue = clutValue ?? throw new ArgumentNullException(nameof(clutValue));
}