public static DX11VertexBuffer CreateWriteable(DxDevice device, int verticesCount, int vertexSize, eVertexBufferWriteMode mode = eVertexBufferWriteMode.None)
{
BufferDescription bd = new BufferDescription()
{
BindFlags = BindFlags.VertexBuffer,
CpuAccessFlags = CpuAccessFlags.None,
OptionFlags = ResourceOptionFlags.None,
SizeInBytes = vertexSize * verticesCount,
Usage = ResourceUsage.Default
};
bd.BindFlags |= BindFlags.ShaderResource;
bd.OptionFlags = ResourceOptionFlags.BufferAllowRawViews;
if (mode == eVertexBufferWriteMode.StreamOut)
{
bd.BindFlags |= BindFlags.StreamOutput;
}
else if (mode == eVertexBufferWriteMode.Raw)
{
bd.BindFlags |= BindFlags.UnorderedAccess;
}
return(new DX11VertexBuffer(device, verticesCount, vertexSize, bd, null));
}
public ResourcePoolEntry <DX11VertexBuffer> LockVertexBuffer <T>(int verticescount, eVertexBufferWriteMode mode) where T : struct
{
return(this.vbopool.Lock(verticescount, Marshal.SizeOf(typeof(T)), mode));
}
public ResourcePoolEntry <DX11VertexBuffer> Lock(int verticescount, int vertexsize, eVertexBufferWriteMode mode)
{
lock (lockObject)
{
//We can lock any buffer of the right size
int totalsize = vertexsize * verticescount;
foreach (ResourcePoolEntry <DX11VertexBuffer> entry in this.pool)
{
DX11VertexBuffer tr = entry.Element;
if (!entry.IsLocked && totalsize == tr.TotalSize && mode == tr.WriteMode)
{
entry.Lock();
return(entry);
}
}
DX11VertexBuffer res = DX11VertexBuffer.CreateWriteable(this.device, verticescount, vertexsize, mode);
ResourcePoolEntry <DX11VertexBuffer> newentry = new ResourcePoolEntry <DX11VertexBuffer>(res);
this.pool.Add(newentry);
return(newentry);
}
}
public ResourcePoolEntry <DX11VertexBuffer> LockVertexBuffer(int verticescount, int vertexsize, eVertexBufferWriteMode mode)
{
return(this.vbopool.Lock(verticescount, vertexsize, mode));
}
