public static bool DecrementMapRefCount(KProcess process, int handle)
{
NvMapHandle map = GetMapFromHandle(process, handle, false);
if (map == null)
{
return(false);
}
if (map.DecrementRefCount() <= 0)
{
DeleteMapWithHandle(process, handle);
Logger.Info?.Print(LogClass.ServiceNv, $"Deleted map {handle}!");
return(true);
}
else
{
return(false);
}
}
private static int GetId(ServiceCtx context)
{
long inputPosition = context.Request.GetBufferType0x21().Position;
long outputPosition = context.Request.GetBufferType0x22().Position;
NvMapGetId args = MemoryHelper.Read <NvMapGetId>(context.Memory, inputPosition);
NvMapHandle map = GetNvMap(context, args.Handle);
if (map == null)
{
Logger.PrintWarning(LogClass.ServiceNv, $"Invalid handle 0x{args.Handle:x8}!");
return(NvResult.InvalidInput);
}
args.Id = args.Handle;
MemoryHelper.Write(context.Memory, outputPosition, args);
return(NvResult.Success);
}
private static int Free(ServiceCtx context)
{
long inputPosition = context.Request.GetBufferType0x21().Position;
long outputPosition = context.Request.GetBufferType0x22().Position;
NvMapFree args = MemoryHelper.Read <NvMapFree>(context.Memory, inputPosition);
NvMapHandle map = GetNvMap(context, args.Handle);
if (map == null)
{
Logger.PrintWarning(LogClass.ServiceNv, $"Invalid handle 0x{args.Handle:x8}!");
return(NvResult.InvalidInput);
}
if (map.DecrementRefCount() <= 0)
{
DeleteNvMap(context, args.Handle);
Logger.PrintInfo(LogClass.ServiceNv, $"Deleted map {args.Handle}!");
args.Address = map.Address;
args.Flags = 0;
}
else
{
args.Address = 0;
args.Flags = FlagNotFreedYet;
}
args.Size = map.Size;
MemoryHelper.Write(context.Memory, outputPosition, args);
return(NvResult.Success);
}
private static int Param(ServiceCtx context)
{
long inputPosition = context.Request.GetBufferType0x21().Position;
long outputPosition = context.Request.GetBufferType0x22().Position;
NvMapParam args = MemoryHelper.Read <NvMapParam>(context.Memory, inputPosition);
NvMapHandle map = GetNvMap(context, args.Handle);
if (map == null)
{
Logger.PrintWarning(LogClass.ServiceNv, $"Invalid handle 0x{args.Handle:x8}!");
return(NvResult.InvalidInput);
}
switch ((NvMapHandleParam)args.Param)
{
case NvMapHandleParam.Size: args.Result = map.Size; break;
case NvMapHandleParam.Align: args.Result = map.Align; break;
case NvMapHandleParam.Heap: args.Result = 0x40000000; break;
case NvMapHandleParam.Kind: args.Result = map.Kind; break;
case NvMapHandleParam.Compr: args.Result = 0; break;
// Note: Base is not supported and returns an error.
// Any other value also returns an error.
default: return(NvResult.InvalidInput);
}
MemoryHelper.Write(context.Memory, outputPosition, args);
return(NvResult.Success);
}
private int CreateHandleFromMap(NvMapHandle map)
{
IdDictionary dict = _maps.GetOrAdd(Owner, (key) => new IdDictionary());
return(dict.Add(map));
}
