public static DXGIPixelFormat ToDXGI(this DecimaPixelFormat fmt)
{
switch (fmt)
{
case DecimaPixelFormat.BC1:
return(DXGIPixelFormat.BC1_UNORM);
case DecimaPixelFormat.BC2:
return(DXGIPixelFormat.BC2_UNORM);
case DecimaPixelFormat.BC3:
return(DXGIPixelFormat.BC3_UNORM);
case DecimaPixelFormat.BC4:
return(DXGIPixelFormat.BC4_UNORM);
case DecimaPixelFormat.BC5:
return(DXGIPixelFormat.BC5_UNORM);
case DecimaPixelFormat.BC7:
return(DXGIPixelFormat.BC7_UNORM);
case DecimaPixelFormat.R8G8B8A8:
return(DXGIPixelFormat.R8G8B8A8_UNORM);
case DecimaPixelFormat.A8:
return(DXGIPixelFormat.A8_UNORM);
default:
throw new ArgumentOutOfRangeException(nameof(fmt), fmt, default);
}
}
public TextureBase(Span <byte> data, Span <byte> streamedData, DecimaPixelFormat pixelFormat, int width, int height, int mips, int streamedMips)
{
Format = pixelFormat.ToDXGI();
Width = width;
Height = height;
Mips = mips;
var dataMips = MathHelper.Swizzle(data, streamedMips, mips, Format, Width, Height);
if (streamedData.Length > 0)
{
var dataMain = MathHelper.Swizzle(streamedData, 0, streamedMips, Format, Width, Height);
var dataCombined = new Span <byte>(new byte[dataMips.Length + dataMain.Length]);
dataMain.CopyTo(dataCombined);
dataMips.CopyTo(dataCombined.Slice(dataMain.Length));
Data = dataCombined.ToArray();
}
else
{
Data = dataMips.ToArray();
}
}