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 D3DXCONSTANTTABLE_DESC?GetDesc(
this ID3DXConstantTable contantTable)
{
VerifyNonNullArgument(
contantTable,
"contantTable");
var desc = default(D3DXCONSTANTTABLE_DESC);
return(Succeeded(contantTable.GetDesc(out desc))
? (D3DXCONSTANTTABLE_DESC?)desc
: null);
}
public static IEnumerable <IntPtr> GetTopLevelConstantHandles(
this ID3DXConstantTable contantTable)
{
VerifyNonNullArgument(
contantTable,
"contantTable");
var desc_ = contantTable.GetDesc();
if (!desc_.HasValue)
{
return(Enumerable.Empty <IntPtr>());
}
var desc = desc_.Value;
return(Enumerable.Range(
0,
(int)desc.Constants)
.Select(
index => contantTable.GetConstant(
IntPtr.Zero,
(uint)index)));
}
