public void ValidTest()
{
BufferElementCount count = new BufferElementCount(25);
int value = count;
Assert.AreEqual(value, 25);
}
public void EqualityTest()
{
BufferElementCount count = new BufferElementCount(25);
BufferElementCount count2 = new BufferElementCount(25);
Assert.AreEqual(count, count2);
}
/// <summary>
/// Builds an immutable index buffer description with ushort backend
/// </summary>
/// <param name="elementCount">Element count</param>
/// <returns>Buffer description to create index buffer</returns>
public static BufferDescription ImmutableIndexBufferUShort(BufferElementCount elementCount)
{
return(new BufferDescription()
{
BindFlags = BindFlags.IndexBuffer,
CpuAccessFlags = CpuAccessFlags.None,
OptionFlags = ResourceOptionFlags.None,
SizeInBytes = elementCount * sizeof(ushort),
StructureByteStride = sizeof(ushort),
Usage = ResourceUsage.Immutable
});
}
/// <summary>
/// Builds a writeable buffer description, that can be used as unordered access
/// </summary>
/// <param name="elementCount">Element count</param>
/// <param name="stride">Structure stride, in bytes</param>
/// <returns>Buffer description to create structured buffer</returns>
public static BufferDescription WriteableStructuredBuffer(BufferElementCount elementCount, BufferStride stride)
{
return(new BufferDescription()
{
BindFlags = BindFlags.ShaderResource | BindFlags.UnorderedAccess,
CpuAccessFlags = CpuAccessFlags.None,
OptionFlags = ResourceOptionFlags.BufferStructured,
SizeInBytes = elementCount * stride,
StructureByteStride = stride,
Usage = ResourceUsage.Default
});
}
/// <summary>
/// Builds a dynamic buffer description
/// </summary>
/// <param name="elementCount">Element count</param>
/// <param name="stride">Structure stride, in bytes</param>
/// <returns>Buffer description to create structured buffer</returns>
public static BufferDescription DynamicStructuredBuffer(BufferElementCount elementCount, BufferStride stride)
{
return(new BufferDescription()
{
BindFlags = BindFlags.ShaderResource,
CpuAccessFlags = CpuAccessFlags.Write,
OptionFlags = ResourceOptionFlags.BufferStructured,
SizeInBytes = elementCount * stride,
StructureByteStride = stride,
Usage = ResourceUsage.Dynamic
});
}
/// <summary>
/// Builds an immutable buffer description
/// </summary>
/// <param name="elementCount">Element count</param>
/// <param name="stride">Structure stride, in bytes</param>
/// <returns>Buffer description to create structured buffer</returns>
public static BufferDescription ImmutableStructuredBuffer(BufferElementCount elementCount, BufferStride stride)
{
return new BufferDescription()
{
BindFlags = BindFlags.ShaderResource,
CpuAccessFlags = CpuAccessFlags.None,
OptionFlags = ResourceOptionFlags.BufferStructured,
SizeInBytes = elementCount * stride,
StructureByteStride = stride,
Usage = ResourceUsage.Immutable
};
}
/// <summary>
/// Builds an immutable index buffer description with ushort backend
/// </summary>
/// <param name="elementCount">Element count</param>
/// <returns>Buffer description to create index buffer</returns>
public static BufferDescription ImmutableIndexBufferUShort(BufferElementCount elementCount)
{
return new BufferDescription()
{
BindFlags = BindFlags.IndexBuffer,
CpuAccessFlags = CpuAccessFlags.None,
OptionFlags = ResourceOptionFlags.None,
SizeInBytes = elementCount * sizeof(ushort),
StructureByteStride = sizeof(ushort),
Usage = ResourceUsage.Immutable
};
}
public void ImmutableTestUShort()
{
BufferElementCount count = new BufferElementCount(1024);
var desc = DescriptorUtils.ImmutableIndexBufferUShort(count);
var expected = new BufferDescription()
{
BindFlags = BindFlags.IndexBuffer,
CpuAccessFlags = CpuAccessFlags.None,
OptionFlags = ResourceOptionFlags.None,
SizeInBytes = count * sizeof(ushort),
StructureByteStride = sizeof(ushort),
Usage = ResourceUsage.Immutable
};
Assert.AreEqual(desc, expected);
}
/// <summary>
/// Builds a counter view, so buffer can be used with IncrementCounter
/// </summary>
/// <param name="elementCount">Element count</param>
/// <returns>View decription</returns>
public static UnorderedAccessViewDescription CounterStructuredBufferView(BufferElementCount elementCount)
{
if (elementCount < 1)
throw new ArgumentOutOfRangeException("elementCount", "We should have at least one element");
return new UnorderedAccessViewDescription()
{
Format = SharpDX.DXGI.Format.Unknown,
Dimension = UnorderedAccessViewDimension.Buffer,
Buffer = new UnorderedAccessViewDescription.BufferResource()
{
ElementCount = elementCount,
FirstElement = 0,
Flags = UnorderedAccessViewBufferFlags.Counter
}
};
}
/// <summary>
/// Builds an appendable view, so buffer can be used as Append/Consume buffer
/// </summary>
/// <param name="elementCount">Element count</param>
/// <returns>View decription</returns>
public static UnorderedAccessViewDescription AppendStructuredBufferView(BufferElementCount elementCount)
{
if (elementCount < 1)
{
throw new ArgumentOutOfRangeException("elementCount", "We should have at least one element");
}
return(new UnorderedAccessViewDescription()
{
Format = SharpDX.DXGI.Format.Unknown,
Dimension = UnorderedAccessViewDimension.Buffer,
Buffer = new UnorderedAccessViewDescription.BufferResource()
{
ElementCount = elementCount,
FirstElement = 0,
Flags = UnorderedAccessViewBufferFlags.Append
}
});
}
public void NegativeValidTest()
{
Assert.AreEqual(BufferElementCount.IsValid(-5), false);
}
public void ZeroValidTest()
{
Assert.AreEqual(BufferElementCount.IsValid(0), false);
}
public void StaticValidTest()
{
Assert.AreEqual(BufferElementCount.IsValid(32), true);
}
public void NegativeTest()
{
BufferElementCount count = new BufferElementCount(-2);
}
public void ZeroTest()
{
BufferElementCount count = new BufferElementCount(0);
}
