public static SlimDX.DXGI.Format DefaultOutputForCompressed(this SlimDX.DXGI.Format fmt)
{
string s = fmt.ToString();
if (s.StartsWith("BC"))
{
return(SlimDX.DXGI.Format.R8G8B8A8_UNorm);
}
return(fmt);
}
public static SlimDX.DXGI.Format GetSingleChannelEquivalent(this SlimDX.DXGI.Format fmt)
{
string s = fmt.ToString();
//Default a few compressed
if (fmt == SlimDX.DXGI.Format.BC1_UNorm || fmt == SlimDX.DXGI.Format.BC3_UNorm || fmt == SlimDX.DXGI.Format.BC7_UNorm)
{
return(SlimDX.DXGI.Format.R8_UNorm);
}
if (s.StartsWith("R32"))
{
if (fmt.IsSignedInt())
{
return(SlimDX.DXGI.Format.R32_SInt);
}
if (fmt.IsUnsignedInt())
{
return(SlimDX.DXGI.Format.R32_UInt);
}
return(SlimDX.DXGI.Format.R32_Float);
}
else if (s.StartsWith("R16"))
{
if (fmt.IsSignedInt())
{
return(SlimDX.DXGI.Format.R16_SInt);
}
if (fmt.IsUnsignedInt())
{
return(SlimDX.DXGI.Format.R16_UInt);
}
return(SlimDX.DXGI.Format.R16_Float);
}
else if (s.StartsWith("R8"))
{
if (fmt.IsSignedInt())
{
return(SlimDX.DXGI.Format.R8_SInt);
}
if (fmt.IsUnsignedInt())
{
return(SlimDX.DXGI.Format.R8_UInt);
}
return(SlimDX.DXGI.Format.R8_UNorm);
}
return(SlimDX.DXGI.Format.Unknown);
}
public static bool IsUnsignedInt(this SlimDX.DXGI.Format fmt)
{
string s = fmt.ToString();
return(s.EndsWith("UInt"));
}
