public static void TransferYUV420 <TDstPixel>(Span <TDstPixel> dst0, Span <TDstPixel> dst1, ReadOnlySpan <Byte> srcY0, ReadOnlySpan <Byte> srcY1, ReadOnlySpan <ushort> srcU, ReadOnlySpan <ushort> srcV)
where TDstPixel : unmanaged
{
KernelRGB yuv = default;
if (typeof(TDstPixel) == typeof(BGR24))
{
var dst00 = System.Runtime.InteropServices.MemoryMarshal.Cast <TDstPixel, BGR24>(dst0);
var dst11 = System.Runtime.InteropServices.MemoryMarshal.Cast <TDstPixel, BGR24>(dst1);
for (int x = 0; x < dst0.Length - 1; x += 2)
{
yuv.SetUV(srcU[x / 2] >> 8, srcV[x / 2] >> 8);
yuv.CopyTo(ref dst00[x + 0], srcY0[x + 0]);
yuv.CopyTo(ref dst00[x + 1], srcY0[x + 1]);
yuv.CopyTo(ref dst11[x + 0], srcY1[x + 0]);
yuv.CopyTo(ref dst11[x + 1], srcY1[x + 1]);
}
return;
}
if (typeof(TDstPixel) == typeof(RGB24))
{
var dst00 = System.Runtime.InteropServices.MemoryMarshal.Cast <TDstPixel, RGB24>(dst0);
var dst11 = System.Runtime.InteropServices.MemoryMarshal.Cast <TDstPixel, RGB24>(dst1);
for (int x = 0; x < dst0.Length - 1; x += 2)
{
yuv.SetUV(srcU[x / 2] >> 8, srcV[x / 2] >> 8);
yuv.CopyTo(ref dst00[x + 0], srcY0[x + 0]);
yuv.CopyTo(ref dst00[x + 1], srcY0[x + 1]);
yuv.CopyTo(ref dst11[x + 0], srcY1[x + 0]);
yuv.CopyTo(ref dst11[x + 1], srcY1[x + 1]);
}
return;
}
throw new NotImplementedException();
}
public static void TransferYUY2 <TDstPixel>(Span <TDstPixel> dst, ReadOnlySpan <ushort> src)
where TDstPixel : unmanaged
{
KernelRGB yuv = default;
var len = Math.Min(dst.Length, src.Length) - 1;
var srcb = System.Runtime.InteropServices.MemoryMarshal.Cast <ushort, byte>(src);
if (typeof(TDstPixel) == typeof(BGR24))
{
var dstb = System.Runtime.InteropServices.MemoryMarshal.Cast <TDstPixel, BGR24>(dst);
for (int x = 0; x < len; x += 2)
{
var xx = x * 2;
yuv.SetUV(srcb[xx + 1], srcb[xx + 3]);
yuv.CopyTo(ref dstb[x + 0], srcb[xx + 0]);
yuv.CopyTo(ref dstb[x + 1], srcb[xx + 2]);
}
return;
}
if (typeof(TDstPixel) == typeof(RGB24))
{
var dstb = System.Runtime.InteropServices.MemoryMarshal.Cast <TDstPixel, RGB24>(dst);
for (int x = 0; x < len; x += 2)
{
var xx = x * 2;
yuv.SetUV(srcb[xx + 1], srcb[xx + 3]);
yuv.CopyTo(ref dstb[x + 0], srcb[xx + 0]);
yuv.CopyTo(ref dstb[x + 1], srcb[xx + 2]);
}
return;
}
throw new NotImplementedException();
}
