compositor: raise errors when bad scale or transform values are used
diff --git a/src/compositor.c b/src/compositor.c
index 574db2d..3c5c8e3 100644
--- a/src/compositor.c
+++ b/src/compositor.c
@@ -2138,6 +2138,16 @@
{
struct weston_surface *surface = wl_resource_get_user_data(resource);
+ /* if wl_output.transform grows more members this will need to be updated. */
+ if (transform < 0 ||
+ transform > WL_OUTPUT_TRANSFORM_FLIPPED_270) {
+ wl_resource_post_error(resource,
+ WL_SURFACE_ERROR_INVALID_TRANSFORM,
+ "buffer transform must be a valid transform "
+ "('%d' specified)", transform);
+ return;
+ }
+
surface->pending.buffer_viewport.buffer.transform = transform;
}
@@ -2148,6 +2158,14 @@
{
struct weston_surface *surface = wl_resource_get_user_data(resource);
+ if (scale < 1) {
+ wl_resource_post_error(resource,
+ WL_SURFACE_ERROR_INVALID_SCALE,
+ "buffer scale must be at least one "
+ "('%d' specified)", scale);
+ return;
+ }
+
surface->pending.buffer_viewport.buffer.scale = scale;
}