public static DX11IndexBuffer FromReference(DX11RenderContext context, SlimDX.Direct3D11.Buffer bufferRef, int elementCount)
{
DX11IndexBuffer ibo = new DX11IndexBuffer(context);
ibo.Buffer = bufferRef;
ibo.IndicesCount = elementCount;
ibo.isOwner = false;
return(ibo);
}
public static Buffer CreateDynamicVertexBuffer(DX11RenderContext context, int size)
{
var vertices = new SlimDX.Direct3D11.Buffer(context.Device, new BufferDescription()
{
BindFlags = BindFlags.VertexBuffer,
CpuAccessFlags = CpuAccessFlags.Write,
OptionFlags = ResourceOptionFlags.None,
SizeInBytes = size,
Usage = ResourceUsage.Dynamic
});
return vertices;
}
public static Buffer CreateDynamicVertexBuffer(DX11RenderContext context, int size)
{
var vertices = new SlimDX.Direct3D11.Buffer(context.Device, new BufferDescription()
{
BindFlags = BindFlags.VertexBuffer,
CpuAccessFlags = CpuAccessFlags.Write,
OptionFlags = ResourceOptionFlags.None,
SizeInBytes = size,
Usage = ResourceUsage.Dynamic
});
return(vertices);
}
public static Buffer CreateStreamOutBuffer(DX11RenderContext context, int vertexsize, int maxelements)
{
//Create a stream out buffer (no init data, but also allow to bind as SO
//Allow access as raw if possible
Buffer buffer = new SlimDX.Direct3D11.Buffer(context.Device, new BufferDescription()
{
BindFlags = BindFlags.VertexBuffer | BindFlags.StreamOutput | BindFlags.ShaderResource,
CpuAccessFlags = CpuAccessFlags.None,
OptionFlags = context.ComputeShaderSupport ? ResourceOptionFlags.RawBuffer : ResourceOptionFlags.None,
SizeInBytes = vertexsize * maxelements,
Usage = ResourceUsage.Default
});
return buffer;
}
public static Buffer CreateDynamicVertexBuffer(DX11RenderContext context, DataStream ds, bool dispose = false)
{
ds.Position = 0;
var vertices = new SlimDX.Direct3D11.Buffer(context.Device, ds, new BufferDescription()
{
BindFlags = BindFlags.VertexBuffer,
CpuAccessFlags = CpuAccessFlags.Write,
OptionFlags = ResourceOptionFlags.None,
SizeInBytes = (int)ds.Length,
Usage = ResourceUsage.Dynamic
});
if (dispose)
{
ds.Dispose();
}
return vertices;
}
public static Buffer CreateDynamicVertexBuffer(DX11RenderContext context, DataStream ds, bool dispose = false)
{
ds.Position = 0;
var vertices = new SlimDX.Direct3D11.Buffer(context.Device, ds, new BufferDescription()
{
BindFlags = BindFlags.VertexBuffer,
CpuAccessFlags = CpuAccessFlags.Write,
OptionFlags = ResourceOptionFlags.None,
SizeInBytes = (int)ds.Length,
Usage = ResourceUsage.Dynamic
});
if (dispose)
{
ds.Dispose();
}
return(vertices);
}
public static DX11IndexedGeometry CreateFrom <T>(DX11RenderContext context, T[] vertices, int[] indices, InputElement[] layout) where T : struct
{
int vertexsize = Marshal.SizeOf(typeof(T));
DX11IndexedGeometry geom = new DX11IndexedGeometry(context);
DataStream ds = new DataStream(vertices.Length * vertexsize, true, true);
ds.Position = 0;
ds.WriteRange(vertices);
ds.Position = 0;
var vbuffer = new SlimDX.Direct3D11.Buffer(context.Device, ds, new BufferDescription()
{
BindFlags = BindFlags.VertexBuffer,
CpuAccessFlags = CpuAccessFlags.None,
OptionFlags = ResourceOptionFlags.None,
SizeInBytes = (int)ds.Length,
Usage = ResourceUsage.Default
});
ds.Dispose();
var indexstream = new DataStream(indices.Length * 4, true, true);
indexstream.WriteRange(indices);
indexstream.Position = 0;
geom.VertexBuffer = vbuffer;
geom.IndexBuffer = new DX11IndexBuffer(context, indexstream, false, true);
geom.InputLayout = layout;
geom.Topology = PrimitiveTopology.TriangleList;
geom.VerticesCount = vertices.Length;
geom.VertexSize = vertexsize;
geom.HasBoundingBox = false;
// geom.BoundingBox = new BoundingBox(new Vector3(-radius), new Vector3(radius));
return(geom);
}
public static Buffer CreateStreamOutBuffer(DX11RenderContext context, int vertexsize, int maxelements, bool allowvbo = true, bool allowibo = false)
{
BindFlags flags = BindFlags.StreamOutput;
//Flag as raw if possible
//flags |= context.ComputeShaderSupport ? BindFlags.UnorderedAccess : BindFlags.None;
flags |= context.ComputeShaderSupport ? BindFlags.ShaderResource : BindFlags.None;
flags |= allowvbo ? BindFlags.VertexBuffer : BindFlags.None;
flags |= allowibo ? BindFlags.IndexBuffer : BindFlags.None;
//Allow access as raw if possible
Buffer buffer = new SlimDX.Direct3D11.Buffer(context.Device, new BufferDescription()
{
BindFlags = flags,
CpuAccessFlags = CpuAccessFlags.None,
OptionFlags = context.ComputeShaderSupport ? ResourceOptionFlags.RawBuffer : ResourceOptionFlags.None,
SizeInBytes = vertexsize * maxelements,
Usage = ResourceUsage.Default
});
return buffer;
}
public static Buffer CreateStreamOutBuffer(DX11RenderContext context, int vertexsize, int maxelements, bool allowvbo = true, bool allowibo = false)
{
BindFlags flags = BindFlags.StreamOutput;
//Flag as raw if possible
//flags |= context.ComputeShaderSupport ? BindFlags.UnorderedAccess : BindFlags.None;
flags |= context.ComputeShaderSupport ? BindFlags.ShaderResource : BindFlags.None;
flags |= allowvbo ? BindFlags.VertexBuffer : BindFlags.None;
flags |= allowibo ? BindFlags.IndexBuffer : BindFlags.None;
//Allow access as raw if possible
Buffer buffer = new SlimDX.Direct3D11.Buffer(context.Device, new BufferDescription()
{
BindFlags = flags,
CpuAccessFlags = CpuAccessFlags.None,
OptionFlags = context.ComputeShaderSupport ? ResourceOptionFlags.RawBuffer : ResourceOptionFlags.None,
SizeInBytes = vertexsize * maxelements,
Usage = ResourceUsage.Default
});
return(buffer);
}
