television resizer commits resize even during desync

this prevents a visual resizing of the image at the moment when the
screen has synchronised. ie. the resizing happens and is disguised
by the synchronisation process

fixed spelling mistake in television preferences window

gui/sdlimgui/win_prefs_television.go

@@ -191,7 +191,7 @@ for it to be a valid VSYNC signal`)
 receiving a valid VSYNC signal`)
 
 		imgui.Spacing()
-		prefsCheckbox(&win.img.dbg.VCS().Env.Prefs.TV.VSYNCimmediateDesync, "Immediate Dysynchronisation")
+		prefsCheckbox(&win.img.dbg.VCS().Env.Prefs.TV.VSYNCimmediateDesync, "Immediate Desynchronisation")
 		win.img.imguiTooltipSimple(`Desynchronise the screen immediately
 when a VSYNC signal is late`)
 

hardware/television/resizer.go

@@ -243,10 +243,13 @@ func (rz *Resizer) commit(state *State) error {
 		rz.usingVBLANK = false
 	}()
 
+	// NOTE: we no longer do this because it sometimes causes a visual resize if
+	// the resize hasn't been caught by the preview process
+	//
 	// do not resize unless screen is synchronised
-	if !state.vsync.isSynced() {
-		return nil
-	}
+	// 	if !state.vsync.isSynced() {
+	// 		return nil
+	// 	}
 
 	// if top/bottom values this frame are not the same as pending top/bottom
 	// values then update pending values and reset pending counter.