glamor: Switch XY bitmap putimage function for small images

Use the glamor_put_image_xy_gl for small images as that is quite a bit
faster.
Signed-off-by: Keith Packard <keithp@keithp.com>

glamor/glamor_image.c

@@ -306,8 +306,13 @@ glamor_put_image(DrawablePtr drawable, GCPtr gc, int depth, int x, int y,
             return;
         break;
     case XYBitmap:
+        if (w * h >= 100 * 100) {
             if (glamor_put_image_xybitmap_gl(drawable, gc, x, y, w, h, leftPad, bits))
                 return;
+        } else {
+            if (glamor_put_image_xy_gl(drawable, gc, depth, x, y, w, h, leftPad, format, bits))
+                return;
+        }
         break;
     }
     glamor_put_image_bail(drawable, gc, depth, x, y, w, h, leftPad, format, bits);