From 1e4c887933a30da6665e37d64dd2b17f15ad972b Mon Sep 17 00:00:00 2001
From: pagefault <>
Date: Fri, 1 Jun 2001 01:52:21 +0000
Subject: [PATCH] Added triple buffering to GUI

---
 zsnes/src/win/winintrf.asm |  2 +-
 zsnes/src/win/winlink.cpp  | 23 +++++++++++++++++++----
 2 files changed, 20 insertions(+), 5 deletions(-)

diff --git a/zsnes/src/win/winintrf.asm b/zsnes/src/win/winintrf.asm
index 973287ad..7b748ac6 100644
--- a/zsnes/src/win/winintrf.asm
+++ b/zsnes/src/win/winintrf.asm
@@ -1298,7 +1298,7 @@ NEWSYM GUIWFVID, db 0,0,0,1,0,0,0,1,1,1,0,0,1,1,0,0,1,1,0,0,0,0       ; If Windo
 NEWSYM GUIDSIZE, db 0,0,0,0,0,1,0,1,1,0,0,1,0,1,0,1,0,1,0,1,0,1
 NEWSYM GUIRATIO, db 0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
 NEWSYM GUIBIFIL, db 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
-NEWSYM GUITBWVID, db 0,0,0,0,0,1,0,1,1,0,0,1,0,1,0,1,0,1,0,1,0,1       ; Triple Buffering (Win)
+NEWSYM GUITBWVID, db 0,0,0,1,0,1,0,1,1,1,0,1,1,1,0,1,1,1,0,1,0,1       ; Triple Buffering (Win)
 SECTION .text
 
 ; ****************************
diff --git a/zsnes/src/win/winlink.cpp b/zsnes/src/win/winlink.cpp
index 63cc52c7..237a37ea 100644
--- a/zsnes/src/win/winlink.cpp
+++ b/zsnes/src/win/winlink.cpp
@@ -155,6 +155,7 @@ void DDrawError(){
 }
 
 extern "C" BYTE vsyncon;
+extern "C" BYTE TripleBufferWin;
 
 void DrawScreen()
 {
@@ -162,8 +163,15 @@ void DrawScreen()
    {
       if(FullScreen == 1)
       {
-         DD_BackBuffer->Blt(NULL, DD_CFB, NULL, DDBLT_WAIT, NULL);
-         DD_Primary->Flip(NULL, DDFLIP_WAIT);
+         if(TripleBufferWin == 1)
+         {
+            DD_BackBuffer->Blt(NULL, DD_CFB, NULL, DDBLT_WAIT, NULL);
+            DD_Primary->Flip(NULL, DDFLIP_WAIT);
+         }
+         else
+         {
+            DD_Primary->Blt(&rcWindow, DD_CFB, NULL, DDBLT_WAIT, NULL);
+         }
       }
       else
       {
@@ -178,8 +186,15 @@ void DrawScreen()
    {
       if(FullScreen == 1)
       {
-         DD_BackBuffer->Blt(NULL, DD_CFB, NULL, DDBLT_WAIT, NULL);
-         DD_Primary->Flip(NULL, DDFLIP_NOVSYNC);
+         if(TripleBufferWin == 1)
+         {
+            DD_BackBuffer->Blt(NULL, DD_CFB, NULL, DDBLT_WAIT, NULL);
+            DD_Primary->Flip(NULL, DDFLIP_NOVSYNC);
+         }
+         else
+         {
+            DD_Primary->Blt(&rcWindow, DD_CFB, NULL, DDBLT_WAIT, NULL);
+         }
       }
       else
       {