From dc36dd350732eb015682a40d2f4532dd50fdd371 Mon Sep 17 00:00:00 2001
From: pagefault <>
Date: Thu, 24 May 2001 04:23:56 +0000
Subject: [PATCH] Added suspend in background option to minimize cpu usage
 while not active

---
 zsnes/src/gui/gui.asm      |  3 ++-
 zsnes/src/gui/guimouse.inc |  1 +
 zsnes/src/gui/guiwindp.inc |  9 +++++++++
 zsnes/src/win/winlink.cpp  | 23 ++++++++++-------------
 4 files changed, 22 insertions(+), 14 deletions(-)

diff --git a/zsnes/src/gui/gui.asm b/zsnes/src/gui/gui.asm
index c2e11427..3a738189 100644
--- a/zsnes/src/gui/gui.asm
+++ b/zsnes/src/gui/gui.asm
@@ -581,6 +581,7 @@ NEWSYM GUIWBAdd,  db 25
 NEWSYM BlackAndWhite, db 0
 NEWSYM MouseWheel, db 1
 NEWSYM AlternateTimer, db 0
+NEWSYM SuspendInBackground, db 0
 
 GUIsave equ $-GUIRAdd
 
@@ -601,7 +602,7 @@ ModemOKStat  db 0       ; OK is detected on modem status
 GUIwinposxo dd 0,5   ,60  ,30  ,55  ,50  ,65  ,5   ,30  ,20   ,10   ,80  ,65  ,20  ,70  ,50  ,3   ,50
 GUIwinposyo dd 0,20  ,70  ,30  ,20  ,20  ,36  ,20  ,30  ,20   ,20   ,50  ,60  ,30  ,65  ,50  ,22  ,60
 GUIwinsizex dd 0,244 ,126 ,189 ,167 ,170 ,148 ,244 ,8*16,13*16,220  ,7*16,9*16,8*16,9*16,140 ,250 ,160
-GUIwinsizey dd 0,190 ,3*16,166 ,190 ,192 ,168 ,191 ,40  ,189  ,182  ,98  ,42  ,40  ,42  ,70  ,190 ,60
+GUIwinsizey dd 0,190 ,3*16,166 ,190 ,192 ,168 ,191 ,40  ,189  ,192  ,98  ,42  ,40  ,42  ,70  ,190 ,60
 GUIwinptr   db 0
 
 GUItextcolor db 0,0,0,0,0
diff --git a/zsnes/src/gui/guimouse.inc b/zsnes/src/gui/guimouse.inc
index 5fb815f4..aaab1eaa 100644
--- a/zsnes/src/gui/guimouse.inc
+++ b/zsnes/src/gui/guimouse.inc
@@ -2634,6 +2634,7 @@ DisplayGUIOptnsClick:
 %ifdef __WIN32__
     GUIClickCButton 12,168,byte[AlwaysOnTop]
     GUIClickCButton 12,178,byte[SaveMainWindowPos]
+    GUIClickCButton 12,188,byte[SuspendInBackground]
     GUIClickCButton 124,23,byte[MouseWheel]
 %endif
 
diff --git a/zsnes/src/gui/guiwindp.inc b/zsnes/src/gui/guiwindp.inc
index cab4438d..65df1a1d 100644
--- a/zsnes/src/gui/guiwindp.inc
+++ b/zsnes/src/gui/guiwindp.inc
@@ -4758,6 +4758,12 @@ DisplayGUIOptns:
     mov dword[GUITemp],GUIIconDataCheckBoxC
 .nocheck10
     GUIDisplayIconWin 10,12,178,[GUITemp]
+    mov dword[GUITemp],GUIIconDataCheckBoxUC
+    cmp byte[SuspendInBackground],1
+    jne .nocheck11
+    mov dword[GUITemp],GUIIconDataCheckBoxC
+.nocheck11
+    GUIDisplayIconWin 10,12,188,[GUITemp]
 %endif
     mov al,[GUIWincol]
     mov byte[GUItextcolor],al
@@ -4797,6 +4803,7 @@ DisplayGUIOptns:
     GUIOuttextwin2 10,26,173,GUIGUIOptnsTextE
     GUIOuttextwin2 10,26,183,GUIGUIOptnsTextF
     GUIOuttextwin2u 10,138,28,GUIGUIOptnsTextJ,1
+    GUIOuttextwin2 10,26,193,GUIGUIOptnsTextK
 %endif
     mov byte[GUIGUIOptnsText6],'R'
     GUIOuttextwin2 10,16,123,GUIGUIOptnsText6
@@ -4820,6 +4827,7 @@ DisplayGUIOptns:
     GUIOuttextwin2 10,25,172,GUIGUIOptnsTextE
     GUIOuttextwin2 10,25,182,GUIGUIOptnsTextF
     GUIOuttextwin2 10,137,27,GUIGUIOptnsTextJ
+    GUIOuttextwin2 10,25,192,GUIGUIOptnsTextK
 %endif
     mov byte[GUIGUIOptnsText6],'R'
     GUIOuttextwin2 10,15,122,GUIGUIOptnsText6
@@ -4911,6 +4919,7 @@ GUIGUIOptnsTextG db 'BACK',0
 GUIGUIOptnsTextH db 'TITLE',0
 GUIGUIOptnsTextI db 'WIN',0
 GUIGUIOptnsTextJ db 'WHEEL MOUSE',0
+GUIGUIOptnsTextK db 'SUSPEND IN BACKGROUND',0
 
 DisplayGUIAbout:
 ;    cmp byte[OSPort],3
diff --git a/zsnes/src/win/winlink.cpp b/zsnes/src/win/winlink.cpp
index 383710de..33b90dfb 100644
--- a/zsnes/src/win/winlink.cpp
+++ b/zsnes/src/win/winlink.cpp
@@ -117,6 +117,8 @@ int                     MouseMove2Y;
 DWORD                   SurfaceX=0;
 DWORD                   SurfaceY=0;
 
+BYTE                    IsActivated = 1;
+
 extern "C" {
 DWORD                   MouseButton;
 }
@@ -189,6 +191,7 @@ extern BYTE HighPriority;
 extern BYTE AlwaysOnTop;
 extern BYTE SaveMainWindowPos;
 extern BYTE AlternateTimer;
+extern BYTE SuspendInBackground;
 extern signed short int MainWindowX;
 extern signed short int MainWindowY;
 extern int CurKeyPos;
@@ -196,19 +199,10 @@ extern int CurKeyReadPos;
 extern int KeyBuffer[16];
 }
 
-BYTE IsActivated = 1;
-
 extern "C" void CheckPriority()
 {
-   if (IsActivated == 1)
-   {
-      if (HighPriority == 1) SetPriorityClass(GetCurrentProcess(), HIGH_PRIORITY_CLASS);
-         else SetPriorityClass(GetCurrentProcess(), NORMAL_PRIORITY_CLASS);
-   }
-   else
-   {
-      SetPriorityClass(GetCurrentProcess(), IDLE_PRIORITY_CLASS);
-   }
+   if (HighPriority == 1) SetPriorityClass(GetCurrentProcess(), HIGH_PRIORITY_CLASS);
+      else SetPriorityClass(GetCurrentProcess(), NORMAL_PRIORITY_CLASS);
 }
 
 extern "C" void CheckAlwaysOnTop()
@@ -412,7 +406,6 @@ LRESULT CALLBACK Main_Proc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
          break;
       case WM_ACTIVATE: 
         IsActivated = 1;
-        CheckPriority();
         if(LOWORD(wParam)==WA_INACTIVE)
          {
             ChangeDisplaySettings(NULL,0);
@@ -440,7 +433,6 @@ LRESULT CALLBACK Main_Proc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
          ChangeDisplaySettings(NULL,0);
          InputDeAcquire();
          IsActivated = 0;
-         CheckPriority();
          break;
       case WM_DESTROY:
          ChangeDisplaySettings(NULL,0);
@@ -843,6 +835,8 @@ BOOL FAR PASCAL InitJoystickInput(LPCDIDEVICEINSTANCE pdinst, LPVOID pvRef)
 
 void endgame()
 {
+
+MessageBox(NULL, "blah", "blah", MB_OK);
    if(lpDirectSound)
    {
       lpDirectSound->Release();
@@ -1594,6 +1588,9 @@ void CheckTimers(void)
 
 void UpdateVFrame(void)
 {
+
+   if (SuspendInBackground == 1 && IsActivated == 0) WaitMessage();
+
    int DataNeeded;
    int SPCSize=256;