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Add flags to reduce input lag

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This commit is contained in:
Travis Nickles 2017-03-09 16:07:17 -08:00
parent 031efa2b0c
commit 36cc2c5012
4 changed files with 6 additions and 5 deletions
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2
DS4Windows/DS4Control/ScpDevice.cs
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@ -522,7 +522,7 @@ namespace DS4Windows
protected virtual Boolean GetDeviceHandle(String Path)
{
m_FileHandle = CreateFile(Path, (GENERIC_WRITE | GENERIC_READ), FILE_SHARE_READ | FILE_SHARE_WRITE, IntPtr.Zero, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL | FILE_FLAG_OVERLAPPED, 0);
m_FileHandle = CreateFile(Path, (GENERIC_WRITE | GENERIC_READ), FILE_SHARE_READ | FILE_SHARE_WRITE, IntPtr.Zero, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL | FILE_FLAG_OVERLAPPED | 0x20000000 | 0x80000000, 0);
return !m_FileHandle.IsInvalid;
}

1
DS4Windows/DS4Library/DS4Device.cs
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@ -339,6 +339,7 @@ namespace DS4Windows
firstActive = DateTime.UtcNow;
System.Timers.Timer readTimeout = new System.Timers.Timer(); // Await 30 seconds for the initial packet, then 3 seconds thereafter.
readTimeout.Elapsed += delegate { HidDevice.CancelIO(); };
NativeMethods.HidD_SetNumInputBuffers(hDevice.safeReadHandle.DangerousGetHandle(), 2);
List<long> Latency = new List<long>();
long oldtime = 0;
Stopwatch sw = new Stopwatch();

4
DS4Windows/HidLibrary/HidDevice.cs
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@ -312,11 +312,11 @@ namespace DS4Windows
{
if (isExclusive)
{
hidHandle = NativeMethods.CreateFile(devicePathName, NativeMethods.GENERIC_READ | NativeMethods.GENERIC_WRITE, 0, IntPtr.Zero, NativeMethods.OpenExisting, 0, 0);
hidHandle = NativeMethods.CreateFile(devicePathName, NativeMethods.GENERIC_READ | NativeMethods.GENERIC_WRITE, 0, IntPtr.Zero, NativeMethods.OpenExisting, 0x20000000 | 0x80000000, 0);
}
else
{
hidHandle = NativeMethods.CreateFile(devicePathName, NativeMethods.GENERIC_READ | NativeMethods.GENERIC_WRITE, NativeMethods.FILE_SHARE_READ | NativeMethods.FILE_SHARE_WRITE, IntPtr.Zero, NativeMethods.OpenExisting, 0, 0);
hidHandle = NativeMethods.CreateFile(devicePathName, NativeMethods.GENERIC_READ | NativeMethods.GENERIC_WRITE, NativeMethods.FILE_SHARE_READ | NativeMethods.FILE_SHARE_WRITE, IntPtr.Zero, NativeMethods.OpenExisting, 0x20000000 | 0x80000000, 0);
}
}
catch (Exception)

4
DS4Windows/HidLibrary/NativeMethods.cs
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@ -74,10 +74,10 @@ namespace DS4Windows
static internal extern IntPtr CreateEvent(ref SECURITY_ATTRIBUTES securityAttributes, int bManualReset, int bInitialState, string lpName);
[DllImport("kernel32.dll", CharSet = CharSet.Auto, SetLastError = true)]
static internal extern IntPtr CreateFile(string lpFileName, uint dwDesiredAccess, int dwShareMode, ref SECURITY_ATTRIBUTES lpSecurityAttributes, int dwCreationDisposition, int dwFlagsAndAttributes, int hTemplateFile);
static internal extern IntPtr CreateFile(string lpFileName, uint dwDesiredAccess, int dwShareMode, ref SECURITY_ATTRIBUTES lpSecurityAttributes, int dwCreationDisposition, uint dwFlagsAndAttributes, int hTemplateFile);
[DllImport("kernel32.dll", CharSet = CharSet.Auto, SetLastError = true)]
internal static extern SafeFileHandle CreateFile(String lpFileName, UInt32 dwDesiredAccess, Int32 dwShareMode, IntPtr lpSecurityAttributes, Int32 dwCreationDisposition, Int32 dwFlagsAndAttributes, Int32 hTemplateFile);
internal static extern SafeFileHandle CreateFile(String lpFileName, UInt32 dwDesiredAccess, Int32 dwShareMode, IntPtr lpSecurityAttributes, Int32 dwCreationDisposition, UInt32 dwFlagsAndAttributes, Int32 hTemplateFile);
[DllImport("kernel32.dll", SetLastError = true)]
static internal extern bool ReadFile(IntPtr hFile, [Out] byte[] lpBuffer, uint nNumberOfBytesToRead, out uint lpNumberOfBytesRead, IntPtr lpOverlapped);