Fixed window update problems on MacOS X 10.2 (thanks Darrell!)

--HG--
extra : convert_revision : svn%3Ac70aab31-4412-0410-b14c-859654838e24/trunk%40499

src/video/quartz/SDL_QuartzVideo.h

@@ -227,6 +227,8 @@ static int          QZ_ToggleFullScreen (_THIS, int on);
 static int          QZ_SetColors        (_THIS, int first_color,
                                          int num_colors, SDL_Color *colors);
 static void         QZ_DirectUpdate     (_THIS, int num_rects, SDL_Rect *rects);
+static int 	     QZ_LockWindow       (_THIS, SDL_Surface *surface);
+static void         QZ_UnlockWindow     (_THIS, SDL_Surface *surface);
 static void         QZ_UpdateRects      (_THIS, int num_rects, SDL_Rect *rects);
 static void         QZ_VideoQuit        (_THIS);
 

src/video/quartz/SDL_QuartzVideo.m

@@ -576,9 +576,11 @@ static SDL_Surface* QZ_SetVideoWindowed (_THIS, SDL_Surface *current, int width,
         LockPortBits ( [ window_view qdPort ] );
         current->pixels = GetPixBaseAddr ( GetPortPixMap ( [ window_view qdPort ] ) );
         current->pitch  = GetPixRowBytes ( GetPortPixMap ( [ window_view qdPort ] ) );
+        UnlockPortBits ( [ window_view qdPort ] );
         
         current->flags |= SDL_SWSURFACE;
         current->flags |= SDL_PREALLOC;
+        current->flags |= SDL_ASYNCBLIT;
         
         if ( flags & SDL_NOFRAME )
             current->flags |= SDL_NOFRAME;
@@ -591,6 +593,8 @@ static SDL_Surface* QZ_SetVideoWindowed (_THIS, SDL_Surface *current, int width,
         }
 
         this->UpdateRects     = QZ_UpdateRects;
+        this->LockHWSurface   = QZ_LockWindow;
+        this->UnlockHWSurface = QZ_UnlockWindow;
     }
 
     /* Save flags to ensure correct teardown */
@@ -913,6 +917,17 @@ static int QZ_IsWindowObscured (NSWindow *window) {
 #endif
 }
 
+/* Locking functions for the software window buffer */
+static int QZ_LockWindow (_THIS, SDL_Surface *surface) {
+    
+    return LockPortBits ( [ window_view qdPort ] );
+}
+
+static void QZ_UnlockWindow (_THIS, SDL_Surface *surface) {
+
+    UnlockPortBits ( [ window_view qdPort ] );
+}
+
 static void QZ_UpdateRects (_THIS, int numRects, SDL_Rect *rects) {
 
     if (SDL_VideoSurface->flags & SDL_OPENGLBLIT) {