private void AllocateNv12FrameBuffer(
CuMemoryType type, IntPtr frameByteSize,
out CuDeviceMemory frameDevicePtr,
out IntPtr frameLocalPtr)
{
frameDevicePtr = default;
frameLocalPtr = default;
var pooled = _nv12BufferPool.Get();
if (pooled != null)
{
// Only use exact size matches to allow memory reduction when
// sizing down.
if (pooled.Size == frameByteSize &&
pooled.MemoryType == type)
{
frameLocalPtr = pooled.Bytes;
frameDevicePtr = pooled.DeviceMemory;
return;
}
// The memory type or size has changed. Deallocate the old
// buffer and allocate new.
pooled.Dispose();
}
if (type == CuMemoryType.Host)
{
frameLocalPtr = Marshal.AllocHGlobal(frameByteSize);
return;
}
frameDevicePtr = CuDeviceMemory.Allocate(frameByteSize);
}
public BufferStorage(
IntPtr bytes,
CuMemoryType memoryType,
CuDeviceMemory deviceMemory,
IntPtr size)
{
Bytes = bytes;
Size = size;
DeviceMemory = deviceMemory;
MemoryType = memoryType;
}
