internal unsafe void MoveToGPU()
{
var context = MyImmediateRC.RC.DeviceContext;
if (m_tableDirty)
{
var array = m_instancingTable.Data;
fixed(void *ptr = array)
{
var intPtr = new IntPtr(ptr);
MyHwBuffers.ResizeAndUpdateStaticStructuredBuffer(ref m_indirectionBuffer, array.Length, sizeof(MyInstancingTableEntry), intPtr,
"MyMergeInstancing/Tables", context);
m_SRVs[0] = m_indirectionBuffer.Srv;
}
m_tableDirty = false;
}
if (m_instancesDataDirty)
{
var array = m_perInstance.Data;
fixed(void *ptr = array)
{
var intPtr = new IntPtr(ptr);
if (m_instanceBuffer != StructuredBufferId.NULL && m_instanceBuffer.Capacity < array.Length)
{
MyHwBuffers.Destroy(m_instanceBuffer);
m_instanceBuffer = StructuredBufferId.NULL;
m_SRVs[1] = null;
}
if (m_instanceBuffer == StructuredBufferId.NULL)
{
m_instanceBuffer = MyHwBuffers.CreateStructuredBuffer(array.Length, sizeof(MyPerInstanceData), true, intPtr, "MyMergeInstancing instances");
m_SRVs[1] = m_instanceBuffer.Srv;
}
else
{
var mapping = MyMapping.MapDiscard(context, m_instanceBuffer.Buffer);
mapping.WriteAndPosition(array, 0, array.Length);
mapping.Unmap();
}
}
m_instancesDataDirty = false;
}
}