Index: uspace/lib/draw/surface.c
===================================================================
--- uspace/lib/draw/surface.c	(revision 6d5e378b28e2c858f3813b5d4d57fa46f709d753)
+++ uspace/lib/draw/surface.c	(revision 6e634d68fd5bc4425b9d96a9ad6bea9b12a0044e)
@@ -44,14 +44,14 @@
 	surface_flags_t flags;
 
-	sysarg_t dirty_x_lo;
-	sysarg_t dirty_x_hi;
-	sysarg_t dirty_y_lo;
-	sysarg_t dirty_y_hi;
+	surface_coord_t dirty_x_lo;
+	surface_coord_t dirty_x_hi;
+	surface_coord_t dirty_y_lo;
+	surface_coord_t dirty_y_hi;
 
 	pixelmap_t pixmap;
 };
 
-surface_t *surface_create(
-    sysarg_t width, sysarg_t height, pixel_t *pixbuf, surface_flags_t flags)
+surface_t *surface_create(surface_coord_t width, surface_coord_t height,
+    pixel_t *pixbuf, surface_flags_t flags)
 {
 	surface_t *surface = (surface_t *) malloc(sizeof(surface_t));
@@ -118,5 +118,5 @@
 }
 
-void surface_get_resolution(surface_t *surface, sysarg_t *width, sysarg_t *height)
+void surface_get_resolution(surface_t *surface, surface_coord_t *width, surface_coord_t *height)
 {
 	assert(width);
@@ -127,6 +127,6 @@
 }
 
-void surface_get_damaged_region(surface_t *surface, sysarg_t *x, sysarg_t *y,
-    sysarg_t *width, sysarg_t *height)
+void surface_get_damaged_region(surface_t *surface, surface_coord_t *x, surface_coord_t *y,
+    surface_coord_t *width, surface_coord_t *height)
 {
 	assert(x);
@@ -151,5 +151,5 @@
 }
 
-void surface_put_pixel(surface_t *surface, sysarg_t x, sysarg_t y, pixel_t pixel)
+void surface_put_pixel(surface_t *surface, surface_coord_t x, surface_coord_t y, pixel_t pixel)
 {
 	surface->dirty_x_lo = surface->dirty_x_lo > x ? x : surface->dirty_x_lo;
@@ -163,5 +163,5 @@
 }
 
-pixel_t surface_get_pixel(surface_t *surface, sysarg_t x, sysarg_t y)
+pixel_t surface_get_pixel(surface_t *surface, surface_coord_t x, surface_coord_t y)
 {
 	if (x < surface->pixmap.width && y < surface->pixmap.height) {
Index: uspace/lib/draw/surface.h
===================================================================
--- uspace/lib/draw/surface.h	(revision 6d5e378b28e2c858f3813b5d4d57fa46f709d753)
+++ uspace/lib/draw/surface.h	(revision 6e634d68fd5bc4425b9d96a9ad6bea9b12a0044e)
@@ -45,4 +45,6 @@
 typedef struct surface surface_t;
 
+typedef sysarg_t surface_coord_t;
+
 typedef enum {
 	SURFACE_FLAG_NONE = 0,
@@ -50,5 +52,5 @@
 } surface_flags_t;
 
-extern surface_t *surface_create(sysarg_t, sysarg_t, pixel_t *, surface_flags_t);
+extern surface_t *surface_create(surface_coord_t, surface_coord_t, pixel_t *, surface_flags_t);
 extern void surface_destroy(surface_t *);
 
@@ -56,11 +58,11 @@
 extern pixel_t *surface_direct_access(surface_t *);
 extern pixelmap_t *surface_pixmap_access(surface_t *);
-extern void surface_get_resolution(surface_t *, sysarg_t *, sysarg_t *);
-extern void surface_get_damaged_region(surface_t *, sysarg_t *, sysarg_t *,
-    sysarg_t *, sysarg_t *);
+extern void surface_get_resolution(surface_t *, surface_coord_t *, surface_coord_t *);
+extern void surface_get_damaged_region(surface_t *, surface_coord_t *, surface_coord_t *,
+    surface_coord_t *, surface_coord_t *);
 extern void surface_reset_damaged_region(surface_t *);
 
-extern void surface_put_pixel(surface_t *, sysarg_t, sysarg_t, pixel_t);
-extern pixel_t surface_get_pixel(surface_t *, sysarg_t, sysarg_t);
+extern void surface_put_pixel(surface_t *, surface_coord_t, surface_coord_t, pixel_t);
+extern pixel_t surface_get_pixel(surface_t *, surface_coord_t, surface_coord_t);
 
 #endif