private NvInternalResult SyncptReadMinOrMax(ref NvFence arguments, bool max)
{
if (arguments.Id >= NvHostSyncpt.SyncptsCount)
{
return(NvInternalResult.InvalidInput);
}
if (max)
{
arguments.Value = (uint)_syncpt.GetMax((int)arguments.Id);
}
else
{
arguments.Value = (uint)_syncpt.GetMin((int)arguments.Id);
}
return(NvInternalResult.Success);
}
private static int EventWait(ServiceCtx context, bool async)
{
long inputPosition = context.Request.GetBufferType0x21().Position;
long outputPosition = context.Request.GetBufferType0x22().Position;
NvHostCtrlSyncptWaitEx args = MemoryHelper.Read <NvHostCtrlSyncptWaitEx>(context.Memory, inputPosition);
if ((uint)args.Id >= NvHostSyncpt.SyncptsCount)
{
return(NvResult.InvalidInput);
}
void WriteArgs()
{
MemoryHelper.Write(context.Memory, outputPosition, args);
}
NvHostSyncpt syncpt = GetUserCtx(context).Syncpt;
if (syncpt.MinCompare(args.Id, args.Thresh))
{
args.Value = syncpt.GetMin(args.Id);
WriteArgs();
return(NvResult.Success);
}
if (!async)
{
args.Value = 0;
}
if (args.Timeout == 0)
{
WriteArgs();
return(NvResult.TryAgain);
}
NvHostEvent Event;
int result, eventIndex;
if (async)
{
eventIndex = args.Value;
if ((uint)eventIndex >= NvHostCtrlUserCtx.EventsCount)
{
return(NvResult.InvalidInput);
}
Event = GetUserCtx(context).Events[eventIndex];
}
else
{
Event = GetFreeEvent(context, syncpt, args.Id, out eventIndex);
}
if (Event != null &&
(Event.State == NvHostEventState.Registered ||
Event.State == NvHostEventState.Free))
{
Event.Id = args.Id;
Event.Thresh = args.Thresh;
Event.State = NvHostEventState.Waiting;
if (!async)
{
args.Value = ((args.Id & 0xfff) << 16) | 0x10000000;
}
else
{
args.Value = args.Id << 4;
}
args.Value |= eventIndex;
result = NvResult.TryAgain;
}
else
{
result = NvResult.InvalidInput;
}
WriteArgs();
return(result);
}
private static int SyncptWait(ServiceCtx context, bool extended)
{
long inputPosition = context.Request.GetBufferType0x21().Position;
long outputPosition = context.Request.GetBufferType0x22().Position;
NvHostCtrlSyncptWait args = MemoryHelper.Read <NvHostCtrlSyncptWait>(context.Memory, inputPosition);
NvHostSyncpt syncpt = GetUserCtx(context).Syncpt;
if ((uint)args.Id >= NvHostSyncpt.SyncptsCount)
{
return(NvResult.InvalidInput);
}
int result;
if (syncpt.MinCompare(args.Id, args.Thresh))
{
result = NvResult.Success;
}
else if (args.Timeout == 0)
{
result = NvResult.TryAgain;
}
else
{
Logger.PrintDebug(LogClass.ServiceNv, "Waiting syncpt with timeout of " + args.Timeout + "ms...");
using (ManualResetEvent waitEvent = new ManualResetEvent(false))
{
syncpt.AddWaiter(args.Thresh, waitEvent);
// Note: Negative (> INT_MAX) timeouts aren't valid on .NET,
// in this case we just use the maximum timeout possible.
int timeout = args.Timeout;
if (timeout < -1)
{
timeout = int.MaxValue;
}
if (timeout == -1)
{
waitEvent.WaitOne();
result = NvResult.Success;
}
else if (waitEvent.WaitOne(timeout))
{
result = NvResult.Success;
}
else
{
result = NvResult.TimedOut;
}
}
Logger.PrintDebug(LogClass.ServiceNv, "Resuming...");
}
if (extended)
{
context.Memory.WriteInt32(outputPosition + 0xc, syncpt.GetMin(args.Id));
}
return(result);
}
