ui/console: when PIXMAN is unavailable, don't draw placeholder msg

When we can't draw text, simply show a blank display.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>

ui/console.c

@@ -584,6 +584,7 @@ DisplaySurface *qemu_create_placeholder_surface(int w, int h,
                                                 const char *msg)
 {
     DisplaySurface *surface = qemu_create_displaysurface(w, h);
+#ifdef CONFIG_PIXMAN
     pixman_color_t bg = QEMU_PIXMAN_COLOR_BLACK;
     pixman_color_t fg = QEMU_PIXMAN_COLOR_GRAY;
     pixman_image_t *glyph;
@@ -598,6 +599,7 @@ DisplaySurface *qemu_create_placeholder_surface(int w, int h,
                                  x+i, y, FONT_WIDTH, FONT_HEIGHT);
         qemu_pixman_image_unref(glyph);
     }
+#endif
     surface->flags |= QEMU_PLACEHOLDER_FLAG;
     return surface;
 }