public static int SizeOf(VertexAttribPointerType type)
{
switch (type)
{
case VertexAttribPointerType.Byte:
return(sizeof(sbyte));
case VertexAttribPointerType.UnsignedByte:
return(sizeof(byte));
case VertexAttribPointerType.Short:
return(sizeof(short));
case VertexAttribPointerType.UnsignedShort:
return(sizeof(ushort));
case VertexAttribPointerType.Int:
return(sizeof(int));
case VertexAttribPointerType.UnsignedInt:
return(sizeof(uint));
case VertexAttribPointerType.Float:
return(sizeof(float));
case VertexAttribPointerType.Double:
return(sizeof(double));
default:
throw new InvalidEnumArgumentException(type.ToString());
}
}
/// <summary>
/// Returns the size in bytes of the C# equivalent for a specified OpenGL attribute pointer type.
/// </summary>
/// <returns>The size of <paramref name="type"/> in bytes</returns>
/// <exception cref="System.NotImplementedException">The size of <paramref name="type"/> is not implemented</exception>
public static int GetSizeInBytes(VertexAttribPointerType type)
{
if (sizeInBytesByType.ContainsKey(type))
{
return(sizeInBytesByType[type]);
}
else
{
throw new System.NotImplementedException($"{type.ToString()} is not a supported type.");
}
}
public override string ToString()
{
if (IsPadding)
{
return(string.Concat("Padding=", SizeInBytes.ToString(), " bytes"));
}
return(string.Concat(
Normalized ? "Normalized " : "Unnormalized ", AttribType.ToString(),
", " + nameof(AttribBaseType) + "=", AttribBaseType.ToString(),
", " + nameof(AttribIndicesUseCount) + "=", AttribIndicesUseCount.ToString(),
", " + nameof(AttribDivisor) + "=", AttribDivisor.ToString()
));
}
/// <summary>
/// Gets the size in bytes of the given <see cref="VertexAttribPointerType"/>.
/// </summary>
public static uint GetVertexAttribSizeInBytes(VertexAttribPointerType type)
{
switch (type)
{
case VertexAttribPointerType.Byte:
case VertexAttribPointerType.UnsignedByte:
return(1);
case VertexAttribPointerType.Short:
case VertexAttribPointerType.UnsignedShort:
case VertexAttribPointerType.HalfFloat:
return(2);
case VertexAttribPointerType.Float:
case VertexAttribPointerType.Int:
case VertexAttribPointerType.UnsignedInt:
case VertexAttribPointerType.Fixed:
return(4);
case VertexAttribPointerType.Double:
return(8);
default:
throw new NotSupportedException(string.Concat("Cannot get size for " + nameof(VertexAttribPointerType) + ":", type.ToString()));
}
}
