public static IEnumerable <D3DXCONSTANT_DESC> GetConstantDesc(
this ID3DXConstantTable contantTable,
IntPtr constantHandle)
{
VerifyNonNullArgument(
contantTable,
"contantTable");
uint count = 0;
if (Succeeded(
contantTable.GetConstantDesc(
constantHandle,
null,
ref count)))
{
var array = new D3DXCONSTANT_DESC[count];
if (Succeeded(
contantTable.GetConstantDesc(
constantHandle,
array,
ref count)))
{
return(array.Take((int)count));
}
}
return(Enumerable.Empty <D3DXCONSTANT_DESC>());
}
public static ConstantInfo ToConstantInfo(this D3DXCONSTANT_DESC desc)
{
var info = new ConstantInfo
{
Name = desc.Name.ReadAsAnsiString(),
RegisterSet = desc.RegisterSet.ToRegisterSet(),
RegisterIndex = (int)desc.RegisterIndex,
RegisterCount = (int)desc.RegisterCount,
Class = desc.Class.ToParameterClass(),
Type = desc.Type.ToParameterType(),
Rows = (int)desc.Rows,
Columns = (int)desc.Columns,
Elements = (int)desc.Elements,
StructMembers = (int)desc.StructMembers,
Bytes = (int)desc.Bytes,
};
if (desc.DefaultValue != IntPtr.Zero)
{
info.DefaultValue = new byte[desc.Bytes];
Marshal.Copy(
desc.DefaultValue,
info.DefaultValue,
0,
(int)desc.Bytes);
}
return(info);
}