From 08b1388cbd6acb982032763b3c2a0ff78822a4f8 Mon Sep 17 00:00:00 2001
From: Sour <mesenemu@gmail.com>
Date: Sun, 31 Mar 2019 20:02:10 -0400
Subject: [PATCH] Debugger: Limit refresh to ~100 FPS on all debugger windows
 (to reduce chances of UI locking up at max speed)

---
 UI/Debugger/EventViewer/frmEventViewer.cs | 13 +++++++++----
 UI/Debugger/PpuViewer/frmPaletteViewer.cs | 14 +++++++++-----
 UI/Debugger/PpuViewer/frmTileViewer.cs    | 12 ++++++++----
 UI/Debugger/PpuViewer/frmTilemapViewer.cs | 12 ++++++++----
 4 files changed, 34 insertions(+), 17 deletions(-)

diff --git a/UI/Debugger/EventViewer/frmEventViewer.cs b/UI/Debugger/EventViewer/frmEventViewer.cs
index 5da7f74..a12d079 100644
--- a/UI/Debugger/EventViewer/frmEventViewer.cs
+++ b/UI/Debugger/EventViewer/frmEventViewer.cs
@@ -14,6 +14,7 @@ namespace Mesen.GUI.Debugger
 	public partial class frmEventViewer : BaseForm
 	{
 		private NotificationListener _notifListener;
+		private DateTime _lastUpdate = DateTime.MinValue;
 
 		public frmEventViewer()
 		{
@@ -41,10 +42,14 @@ namespace Mesen.GUI.Debugger
 			switch(e.NotificationType) {
 				case ConsoleNotificationType.CodeBreak:
 				case ConsoleNotificationType.EventViewerRefresh:
-					ctrlPpuView.RefreshData();
-					this.BeginInvoke((Action)(() => {
-						ctrlPpuView.RefreshViewer();
-					}));
+					if((DateTime.Now - _lastUpdate).Milliseconds > 10) {
+						_lastUpdate = DateTime.Now;
+
+						ctrlPpuView.RefreshData();
+						this.BeginInvoke((Action)(() => {
+							ctrlPpuView.RefreshViewer();
+						}));
+					}
 					break;
 			}
 		}
diff --git a/UI/Debugger/PpuViewer/frmPaletteViewer.cs b/UI/Debugger/PpuViewer/frmPaletteViewer.cs
index 5c40a53..238364a 100644
--- a/UI/Debugger/PpuViewer/frmPaletteViewer.cs
+++ b/UI/Debugger/PpuViewer/frmPaletteViewer.cs
@@ -7,6 +7,7 @@ namespace Mesen.GUI.Debugger
 	public partial class frmPaletteViewer : BaseForm
 	{
 		private NotificationListener _notifListener;
+		private DateTime _lastUpdate = DateTime.MinValue;
 
 		public frmPaletteViewer()
 		{
@@ -54,11 +55,14 @@ namespace Mesen.GUI.Debugger
 				case ConsoleNotificationType.CodeBreak:
 				case ConsoleNotificationType.ViewerRefresh:
 					if(e.Parameter.ToInt32() == ctrlScanlineCycleSelect.ViewerId) {
-						ctrlPaletteViewer.RefreshData();
-						this.BeginInvoke((Action)(() => {
-							ctrlPaletteViewer.RefreshViewer();
-							UpdateFields();
-						}));
+						if((DateTime.Now - _lastUpdate).Milliseconds > 10) {
+							_lastUpdate = DateTime.Now;
+							ctrlPaletteViewer.RefreshData();
+							this.BeginInvoke((Action)(() => {
+								ctrlPaletteViewer.RefreshViewer();
+								UpdateFields();
+							}));
+						}
 					}
 					break;
 
diff --git a/UI/Debugger/PpuViewer/frmTileViewer.cs b/UI/Debugger/PpuViewer/frmTileViewer.cs
index 2602d18..5affedf 100644
--- a/UI/Debugger/PpuViewer/frmTileViewer.cs
+++ b/UI/Debugger/PpuViewer/frmTileViewer.cs
@@ -24,6 +24,7 @@ namespace Mesen.GUI.Debugger
 		private bool _zoomed;
 		private SnesMemoryType _memoryType = SnesMemoryType.VideoRam;
 		private int _addressOffset = 0;
+		private DateTime _lastUpdate = DateTime.MinValue;
 
 		public frmTileViewer()
 		{
@@ -71,10 +72,13 @@ namespace Mesen.GUI.Debugger
 				case ConsoleNotificationType.CodeBreak:
 				case ConsoleNotificationType.ViewerRefresh:
 					if(e.Parameter.ToInt32() == ctrlScanlineCycleSelect.ViewerId) {
-						RefreshData();
-						this.BeginInvoke((Action)(() => {
-							this.RefreshViewer();
-						}));
+						if((DateTime.Now - _lastUpdate).Milliseconds > 10) {
+							_lastUpdate = DateTime.Now;
+							RefreshData();
+							this.BeginInvoke((Action)(() => {
+								this.RefreshViewer();
+							}));
+						}
 					}
 					break;
 
diff --git a/UI/Debugger/PpuViewer/frmTilemapViewer.cs b/UI/Debugger/PpuViewer/frmTilemapViewer.cs
index 3b1931a..eda981a 100644
--- a/UI/Debugger/PpuViewer/frmTilemapViewer.cs
+++ b/UI/Debugger/PpuViewer/frmTilemapViewer.cs
@@ -28,6 +28,7 @@ namespace Mesen.GUI.Debugger
 		private int _scale = 1;
 		private int _selectedRow = 0;
 		private int _selectedColumn = 0;
+		private DateTime _lastUpdate = DateTime.MinValue;
 
 		public frmTilemapViewer()
 		{
@@ -77,10 +78,13 @@ namespace Mesen.GUI.Debugger
 				case ConsoleNotificationType.CodeBreak:
 				case ConsoleNotificationType.ViewerRefresh:
 					if(e.Parameter.ToInt32() == ctrlScanlineCycleSelect.ViewerId) {
-						RefreshData();
-						this.BeginInvoke((Action)(() => {
-							this.RefreshViewer();
-						}));
+						if((DateTime.Now - _lastUpdate).Milliseconds > 10) {
+							_lastUpdate = DateTime.Now;
+							RefreshData();
+							this.BeginInvoke((Action)(() => {
+								this.RefreshViewer();
+							}));
+						}
 					}
 					break;