public ReadOnlySpan <T> Read <T>(int size) where T : unmanaged
{
ReadOnlySpan <byte> data = _memory.GetSpan(Position, size);
Position += (uint)size;
return(MemoryMarshal.Cast <byte, T>(data));
}
private NvInternalResult Submit(Span <byte> arguments)
{
SubmitArguments submitHeader = GetSpanAndSkip <SubmitArguments>(ref arguments, 1)[0];
Span <CommandBuffer> commandBuffers = GetSpanAndSkip <CommandBuffer>(ref arguments, submitHeader.CmdBufsCount);
Span <Reloc> relocs = GetSpanAndSkip <Reloc>(ref arguments, submitHeader.RelocsCount);
Span <uint> relocShifts = GetSpanAndSkip <uint>(ref arguments, submitHeader.RelocsCount);
Span <SyncptIncr> syncptIncrs = GetSpanAndSkip <SyncptIncr>(ref arguments, submitHeader.SyncptIncrsCount);
Span <SyncptIncr> waitChecks = GetSpanAndSkip <SyncptIncr>(ref arguments, submitHeader.SyncptIncrsCount); // ?
Span <Fence> fences = GetSpanAndSkip <Fence>(ref arguments, submitHeader.FencesCount);
lock (_device)
{
for (int i = 0; i < syncptIncrs.Length; i++)
{
SyncptIncr syncptIncr = syncptIncrs[i];
uint id = syncptIncr.Id;
fences[i].Id = id;
fences[i].Thresh = Context.Device.System.HostSyncpoint.IncrementSyncpointMax(id, syncptIncr.Incrs);
}
foreach (CommandBuffer commandBuffer in commandBuffers)
{
NvMapHandle map = NvMapDeviceFile.GetMapFromHandle(Owner, commandBuffer.Mem);
var data = _memory.GetSpan(map.Address + commandBuffer.Offset, commandBuffer.WordsCount * 4);
_device.Host1x.Submit(MemoryMarshal.Cast <byte, int>(data));
}
}
fences[0].Thresh = Context.Device.System.HostSyncpoint.IncrementSyncpointMax(fences[0].Id, 1);
Span <int> tmpCmdBuff = stackalloc int[1];
tmpCmdBuff[0] = (4 << 28) | (int)fences[0].Id;
_device.Host1x.Submit(tmpCmdBuff);
return(NvInternalResult.Success);
}
private static List <AddrInfoSerialized> DeserializeAddrInfos(IVirtualMemoryManager memory, ulong address, ulong size)
{
List <AddrInfoSerialized> result = new List <AddrInfoSerialized>();
ReadOnlySpan <byte> data = memory.GetSpan(address, (int)size);
while (!data.IsEmpty)
{
AddrInfoSerialized info = AddrInfoSerialized.Read(data, out data);
if (info == null)
{
break;
}
result.Add(info);
}
return(result);
}
/// <inheritdoc/>
protected override ReadOnlySpan <byte> GetSpan(ulong va, int size)
{
return(_cpuMemory.GetSpan(va, size));
}