Implemented vsync in windows port

2001-05-27 20:24:36 +00:00
parent 055172f128
commit 7e485903d5
6 changed files with 67 additions and 82 deletions
--- a/zsnes/src/win/winlink.cpp
+++ b/zsnes/src/win/winlink.cpp
@@ -145,10 +145,19 @@ void DDrawError(){
   MessageBox (NULL, message1, "DirectDraw Error" , MB_ICONERROR );
 }

+extern "C" BYTE vsyncon;
+
 void DrawScreen()
 {
   if(DD_CFB==NULL) return;
-   if(DD_Primary->Blt(&rcWindow,DD_CFB,NULL,DDBLT_WAIT,NULL)!=DD_OK)
+   if (vsyncon == 1)
+   {
+   if (lpDD->WaitForVerticalBlank(DDWAITVB_BLOCKBEGIN, NULL) != DD_OK)
+      {
+         DDrawError();
+      }
+   }
+   if(DD_Primary->Blt(&rcWindow,DD_CFB,NULL,DDBLT_WAIT,NULL) != DD_OK)
   {
      DDrawError();
 	}