public CommandBuffer(Device graphicsDevice, CommandBufferType type) : base(graphicsDevice)
{
Type = type;
Recreate();
WaitFence = new(NativeDevice, true);
}
/// <summary>
/// Creates a new instance of the GPU DMA pusher.
/// </summary>
/// <param name="context">GPU context that the pusher belongs to</param>
internal DmaPusher(GpuContext context)
{
_context = context;
_ibEnable = true;
_currentCommandBuffer = new CommandBuffer();
_commandBufferQueue = new ConcurrentQueue <CommandBuffer>();
_event = new AutoResetEvent(false);
_forcePrefetchOnNext = false;
_previousCommandBufferType = CommandBufferType.Unknown;
}
/// <summary>
/// Create a CommandBuffer from a GPFIFO entry.
/// </summary>
/// <param name="entry">The GPFIFO entry</param>
/// <returns>A new CommandBuffer based on the GPFIFO entry</returns>
private CommandBuffer CreateCommandBuffer(GPEntry entry)
{
CommandBufferType type = CommandBufferType.Prefetch;
if (entry.Entry1Sync == Entry1Sync.Wait)
{
type = CommandBufferType.NoPrefetch;
}
ulong startAddress = ((ulong)entry.Entry0Get << 2) | ((ulong)entry.Entry1GetHi << 32);
return(new CommandBuffer
{
Type = type,
Words = null,
EntryAddress = startAddress,
EntryCount = (uint)entry.Entry1Length
});
}
/// <summary>
/// Create a CommandBuffer from a GPFIFO entry.
/// </summary>
/// <param name="entry">The GPFIFO entry</param>
/// <returns>A new CommandBuffer based on the GPFIFO entry</returns>
private CommandBuffer CreateCommandBuffer(ulong entry)
{
ulong length = (entry >> 42) & 0x1fffff;
ulong startAddress = entry & 0xfffffffffc;
bool noPrefetch = (entry & (1UL << 63)) != 0;
CommandBufferType type = CommandBufferType.Prefetch;
if (noPrefetch)
{
type = CommandBufferType.NoPrefetch;
}
return(new CommandBuffer
{
Type = type,
Words = null,
EntryAddress = startAddress,
EntryCount = (uint)length
});
}
/// <summary>
/// Pushes a GPFIFO entry.
/// </summary>
/// <param name="entry">GPFIFO entry</param>
private void Push(ulong entry)
{
ulong length = (entry >> 42) & 0x1fffff;
ulong startAddres = entry & 0xfffffffffc;
bool noPrefetch = (entry & (1UL << 63)) != 0;
CommandBufferType type = CommandBufferType.Prefetch;
//CommandBufferType type = CommandBufferType.NoPrefetch;
if (noPrefetch)
{
type = CommandBufferType.NoPrefetch;
}
_commandBufferQueue.Enqueue(new CommandBuffer
{
Type = type,
WordsPrefetched = null,
EntryAddress = startAddres,
EntryCount = (uint)length
});
}
public CommandBuffer(Device graphicsDevice, CommandBufferType type) : base(graphicsDevice)
{
Type = type;
//Recreate();
}
