niri: add custom animations for window opening and resizing

Signed-off-by: faukah <fau@faukah.com>
Change-Id: I6a6a69647336104b507fbba5b82de23684e60291

modules/wms/niri/window-resize.glsl

@@ -0,0 +1,5 @@
+vec4 resize_color(vec3 coords_curr_geo, vec3 size_curr_geo) {
+    vec3 coords_tex_next = niri_geo_to_tex_next * coords_curr_geo;
+    vec4 color = texture2D(niri_tex_next, coords_tex_next.st);
+    return color;
+}