Timing: Optimize Timestamp Aquisition (#479)

* Timing: Optimize Timestamp Aquisition

Currently, we make use of Environment.TickCount in a number of places. This has some downsides, mainly being that the TickCount is a signed 32-bit integer, and has an effective limit of ~25 days before overflowing and wrapping around. Due to the signed-ness of the value, this also caused issues with negative numbers. This resolves these issues by using a 64-bit tick count obtained from Performance Counters (via the Stopwatch class). This has a beneficial side effect of being significantly more accurate than the TickCount.

* Timing: Rename ElapsedTicks to ElapsedMilliseconds and expose TicksPerX

* Timing: Some style changes

* Timing: Align static variable initialization

1 files changed, 18 insertions, 17 deletions

diff --git a/Ryujinx.HLE/Hid/Hid.cs b/Ryujinx.HLE/Hid/Hid.cs
index 66b38db5..21580223 100644
--- a/Ryujinx.HLE/Hid/Hid.cs
+++ b/Ryujinx.HLE/Hid/Hid.cs
@@ -1,4 +1,5 @@
-using Ryujinx.HLE.HOS;
+using Ryujinx.Common;
+using Ryujinx.HLE.HOS;
 using System;
 
 namespace Ryujinx.HLE.Input
@@ -98,12 +99,12 @@ namespace Ryujinx.HLE.Input
 
             HidControllerColorDesc SplitColorDesc = 0;
 
-            Device.Memory.WriteInt32(BaseControllerOffset + 0x0,  (int)Type);
+            Device.Memory.WriteInt32(BaseControllerOffset + 0x00, (int)Type);
 
-            Device.Memory.WriteInt32(BaseControllerOffset + 0x4,  IsHalf ? 1 : 0);
+            Device.Memory.WriteInt32(BaseControllerOffset + 0x04, IsHalf ? 1 : 0);
 
-            Device.Memory.WriteInt32(BaseControllerOffset + 0x8,  (int)SingleColorDesc);
-            Device.Memory.WriteInt32(BaseControllerOffset + 0xc,  (int)SingleColorBody);
+            Device.Memory.WriteInt32(BaseControllerOffset + 0x08, (int)SingleColorDesc);
+            Device.Memory.WriteInt32(BaseControllerOffset + 0x0c, (int)SingleColorBody);
             Device.Memory.WriteInt32(BaseControllerOffset + 0x10, (int)SingleColorButtons);
             Device.Memory.WriteInt32(BaseControllerOffset + 0x14, (int)SplitColorDesc);
 
@@ -186,8 +187,8 @@ namespace Ryujinx.HLE.Input
 
             long Timestamp = GetTimestamp();
 
-            Device.Memory.WriteInt64(ControllerOffset + 0x0,  Timestamp);
-            Device.Memory.WriteInt64(ControllerOffset + 0x8,  HidEntryCount);
+            Device.Memory.WriteInt64(ControllerOffset + 0x00, Timestamp);
+            Device.Memory.WriteInt64(ControllerOffset + 0x08, HidEntryCount);
             Device.Memory.WriteInt64(ControllerOffset + 0x10, CurrEntry);
             Device.Memory.WriteInt64(ControllerOffset + 0x18, HidEntryCount - 1);
 
@@ -199,8 +200,8 @@ namespace Ryujinx.HLE.Input
 
             long SampleCounter = Device.Memory.ReadInt64(LastEntryOffset) + 1;
 
-            Device.Memory.WriteInt64(ControllerOffset + 0x0, SampleCounter);
-            Device.Memory.WriteInt64(ControllerOffset + 0x8, SampleCounter);
+            Device.Memory.WriteInt64(ControllerOffset + 0x00, SampleCounter);
+            Device.Memory.WriteInt64(ControllerOffset + 0x08, SampleCounter);
 
             Device.Memory.WriteInt64(ControllerOffset + 0x10, (uint)Buttons);
 
@@ -225,8 +226,8 @@ namespace Ryujinx.HLE.Input
 
             long Timestamp = GetTimestamp();
 
-            Device.Memory.WriteInt64(TouchScreenOffset + 0x0,  Timestamp);
-            Device.Memory.WriteInt64(TouchScreenOffset + 0x8,  HidEntryCount);
+            Device.Memory.WriteInt64(TouchScreenOffset + 0x00, Timestamp);
+            Device.Memory.WriteInt64(TouchScreenOffset + 0x08, HidEntryCount);
             Device.Memory.WriteInt64(TouchScreenOffset + 0x10, CurrEntry);
             Device.Memory.WriteInt64(TouchScreenOffset + 0x18, HidEntryCount - 1);
             Device.Memory.WriteInt64(TouchScreenOffset + 0x20, Timestamp);
@@ -239,8 +240,8 @@ namespace Ryujinx.HLE.Input
 
             TouchEntryOffset += CurrEntry * HidTouchEntrySize;
 
-            Device.Memory.WriteInt64(TouchEntryOffset + 0x0, SampleCounter);
-            Device.Memory.WriteInt64(TouchEntryOffset + 0x8, Points.Length);
+            Device.Memory.WriteInt64(TouchEntryOffset + 0x00, SampleCounter);
+            Device.Memory.WriteInt64(TouchEntryOffset + 0x08, Points.Length);
 
             TouchEntryOffset += HidTouchEntryHeaderSize;
 
@@ -250,9 +251,9 @@ namespace Ryujinx.HLE.Input
 
             foreach (HidTouchPoint Point in Points)
             {
-                Device.Memory.WriteInt64(TouchEntryOffset + 0x0,  Timestamp);
-                Device.Memory.WriteInt32(TouchEntryOffset + 0x8,  Padding);
-                Device.Memory.WriteInt32(TouchEntryOffset + 0xc,  Index++);
+                Device.Memory.WriteInt64(TouchEntryOffset + 0x00, Timestamp);
+                Device.Memory.WriteInt32(TouchEntryOffset + 0x08, Padding);
+                Device.Memory.WriteInt32(TouchEntryOffset + 0x0c, Index++);
                 Device.Memory.WriteInt32(TouchEntryOffset + 0x10, Point.X);
                 Device.Memory.WriteInt32(TouchEntryOffset + 0x14, Point.Y);
                 Device.Memory.WriteInt32(TouchEntryOffset + 0x18, Point.DiameterX);
@@ -266,7 +267,7 @@ namespace Ryujinx.HLE.Input
 
         private static long GetTimestamp()
         {
-            return (long)((ulong)Environment.TickCount * 19_200);
+            return PerformanceCounter.ElapsedMilliseconds * 19200;
         }
     }
 }