public void MemoryConsumption_Low_Success()
{
// Assign
var encoding = new Rgba(8, 0, 0);
var input = Enumerable.Range(0, 1024 * 1024 * 32).Select(x => (byte)(x % 256)).ToArray();
// Act
var colors = encoding.Load(input, 1);
// Assert
var stopwatch = new Stopwatch();
stopwatch.Start();
Assert.IsTrue(colors.All(x =>
x == Color.FromArgb(255, 3, 0, 0)));
stopwatch.Stop();
}
private IList <Color> ExpandTX4I(byte[] data, byte[] tx4iData, byte[] paletteData)
{
var palEnc = new Rgba(5, 5, 5, "BGR");
Color DecodeColor(byte[] cData) => palEnc.Load(cData, new EncodingLoadContext(new Size(1, 1), 1)).First();
var result = new List <Color>();
var clrBuffer = new byte[2];
for (var i = 0; i < data.Length; i += 4)
{
var texBlock = BinaryPrimitives.ReadUInt32LittleEndian(data.AsSpan(i, 4));
var tx4iBlock = BinaryPrimitives.ReadUInt16LittleEndian(tx4iData.AsSpan(i >> 1, 2));
var palOffset = (tx4iBlock & 0x3FFF) * 4;
var mode = tx4iBlock >> 14;
var c0Value = (uint)BinaryPrimitives.ReadUInt16LittleEndian(paletteData.AsSpan(palOffset, 2));
var c1Value = (uint)BinaryPrimitives.ReadUInt16LittleEndian(paletteData.AsSpan(palOffset + 2, 2));
var c0 = DecodeColor(paletteData.AsSpan(palOffset, 2).ToArray());
var c1 = DecodeColor(paletteData.AsSpan(palOffset + 2, 2).ToArray());
for (var j = 0; j < 16; j++)
{
var index = (texBlock >> (j * 2)) & 0x3;
switch (index)
{
case 0:
result.Add(c0);
break;
case 1:
result.Add(c1);
break;
case 2:
switch (mode)
{
case 0:
case 2:
result.Add(DecodeColor(paletteData.AsSpan(palOffset + 4, 2).ToArray()));
break;
case 1:
result.Add(c0.InterpolateHalf(c1));
break;
case 3:
result.Add(c0.InterpolateEighth(c1, 5));
break;
}
break;
case 3:
switch (mode)
{
case 0:
case 1:
result.Add(Color.Transparent);
break;
case 2:
result.Add(DecodeColor(paletteData.AsSpan(palOffset + 6, 2).ToArray()));
break;
case 3:
result.Add(c0.InterpolateEighth(c1, 3));
break;
}
break;
}
}
}
return(result);
}
