public static int SizeOf(ComponentDatatype type)
{
switch (type)
{
case ComponentDatatype.Byte:
case ComponentDatatype.UnsignedByte:
return(sizeof(byte));
case ComponentDatatype.Short:
return(sizeof(short));
case ComponentDatatype.UnsignedShort:
return(sizeof(ushort));
case ComponentDatatype.Int:
return(sizeof(int));
case ComponentDatatype.UnsignedInt:
return(sizeof(uint));
case ComponentDatatype.Float:
return(sizeof(float));
case ComponentDatatype.HalfFloat:
return(SizeInBytes <Half> .Value);
}
throw new ArgumentException("type");
}
public VertexBufferAttribute(
VertexBuffer vertexBuffer,
ComponentDatatype componentDatatype,
int numberOfComponents)
: this(vertexBuffer, componentDatatype, numberOfComponents, false, 0, 0)
{
}
public VertexBufferAttribute(
VertexBuffer vertexBuffer,
ComponentDatatype componentDatatype,
int numberOfComponents)
: this(vertexBuffer, componentDatatype, numberOfComponents, false, 0, 0)
{
}
public static VertexAttribPointerType To(ComponentDatatype type)
{
switch (type)
{
case ComponentDatatype.Byte:
return(VertexAttribPointerType.Byte);
case ComponentDatatype.UnsignedByte:
return(VertexAttribPointerType.UnsignedByte);
case ComponentDatatype.Short:
return(VertexAttribPointerType.Short);
case ComponentDatatype.UnsignedShort:
return(VertexAttribPointerType.UnsignedShort);
case ComponentDatatype.Int:
return(VertexAttribPointerType.Int);
case ComponentDatatype.UnsignedInt:
return(VertexAttribPointerType.UnsignedInt);
case ComponentDatatype.Float:
return(VertexAttribPointerType.Float);
case ComponentDatatype.HalfFloat:
return(VertexAttribPointerType.HalfFloat);
}
throw new ArgumentException("type");
}
public VertexBufferAttribute(
VertexBuffer vertexBuffer,
ComponentDatatype componentDatatype,
int numberOfComponents,
bool normalize,
int offsetInBytes,
int strideInBytes)
{
if (numberOfComponents <= 0)
{
throw new ArgumentOutOfRangeException("numberOfComponents", "numberOfComponents must be greater than zero.");
}
if (offsetInBytes < 0)
{
throw new ArgumentOutOfRangeException("offsetInBytes", "offsetInBytes must be greater than or equal to zero.");
}
if (strideInBytes < 0)
{
throw new ArgumentOutOfRangeException("stride", "stride must be greater than or equal to zero.");
}
_vertexBuffer = vertexBuffer;
_componentDatatype = componentDatatype;
_numberOfComponents = numberOfComponents;
_normalize = normalize;
_offsetInBytes = offsetInBytes;
if (strideInBytes == 0)
{
//
// Tightly packed
//
_strideInBytes = numberOfComponents * VertexArraySizes.SizeOf(componentDatatype);
}
else
{
_strideInBytes = strideInBytes;
}
}
public VertexBufferAttribute(
VertexBuffer vertexBuffer,
ComponentDatatype componentDatatype,
int numberOfComponents,
bool normalize,
int offsetInBytes,
int strideInBytes)
{
if (numberOfComponents <= 0)
{
throw new ArgumentOutOfRangeException("numberOfComponents", "numberOfComponents must be greater than zero.");
}
if (offsetInBytes < 0)
{
throw new ArgumentOutOfRangeException("offsetInBytes", "offsetInBytes must be greater than or equal to zero.");
}
if (strideInBytes < 0)
{
throw new ArgumentOutOfRangeException("stride", "stride must be greater than or equal to zero.");
}
_vertexBuffer = vertexBuffer;
_componentDatatype = componentDatatype;
_numberOfComponents = numberOfComponents;
_normalize = normalize;
_offsetInBytes = offsetInBytes;
if (strideInBytes == 0)
{
//
// Tightly packed
//
_strideInBytes = numberOfComponents * VertexArraySizes.SizeOf(componentDatatype);
}
else
{
_strideInBytes = strideInBytes;
}
}
public static int SizeOf(ComponentDatatype type)
{
switch (type)
{
case ComponentDatatype.Byte:
case ComponentDatatype.UnsignedByte:
return sizeof(byte);
case ComponentDatatype.Short:
return sizeof(short);
case ComponentDatatype.UnsignedShort:
return sizeof(ushort);
case ComponentDatatype.Int:
return sizeof(int);
case ComponentDatatype.UnsignedInt:
return sizeof(uint);
case ComponentDatatype.Float:
return sizeof(float);
case ComponentDatatype.HalfFloat:
return SizeInBytes<Half>.Value;
}
throw new ArgumentException("type");
}
public static VertexAttribPointerType To(ComponentDatatype type)
{
switch (type)
{
case ComponentDatatype.Byte:
return VertexAttribPointerType.Byte;
case ComponentDatatype.UnsignedByte:
return VertexAttribPointerType.UnsignedByte;
case ComponentDatatype.Short:
return VertexAttribPointerType.Short;
case ComponentDatatype.UnsignedShort:
return VertexAttribPointerType.UnsignedShort;
case ComponentDatatype.Int:
return VertexAttribPointerType.Int;
case ComponentDatatype.UnsignedInt:
return VertexAttribPointerType.UnsignedInt;
case ComponentDatatype.Float:
return VertexAttribPointerType.Float;
case ComponentDatatype.HalfFloat:
return VertexAttribPointerType.HalfFloat;
}
throw new ArgumentException("type");
}
