Separate out screen size and screen pixmap sizes in RRScreenSizeSet

This provides for separate sizes for the screen scanout and rendering
buffer and the application-visible screen size.

Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Aaron Plattner <aplattner@nvidia.com>

randr/randrstr.h

@@ -191,6 +191,8 @@ struct _rrOutput {
 typedef Bool (*RRScreenSetSizeProcPtr) (ScreenPtr	pScreen,
 					CARD16		width,
 					CARD16		height,
+					CARD16		pixWidth,
+					CARD16		pixHeight,
 					CARD32		mmWidth,
 					CARD32		mmHeight);
 					
@@ -478,6 +480,8 @@ extern _X_EXPORT Bool
 RRScreenSizeSet (ScreenPtr  pScreen,
 		 CARD16	    width,
 		 CARD16	    height,
+		 CARD16	    pixWidth,
+		 CARD16	    pixHeight,
 		 CARD32	    mmWidth,
 		 CARD32	    mmHeight);