wlr_scene: add color transform argument for rendering

include/wlr/types/wlr_scene.h

@@ -469,6 +469,7 @@ void wlr_scene_output_set_position(struct wlr_scene_output *scene_output,
 
 struct wlr_scene_output_state_options {
 	struct wlr_scene_timer *timer;
+	struct wlr_color_transform *color_transform;
 
 	/**
 	 * Allows use of a custom swapchain. This can be useful when trying out an

types/scene/wlr_scene.c

@@ -1861,6 +1861,7 @@ bool wlr_scene_output_build_state(struct wlr_scene_output *scene_output,
 	struct wlr_render_pass *render_pass = wlr_renderer_begin_buffer_pass(output->renderer, buffer,
 			&(struct wlr_buffer_pass_options){
 		.timer = timer ? timer->render_timer : NULL,
+		.color_transform = options->color_transform,
 	});
 	if (render_pass == NULL) {
 		wlr_buffer_unlock(buffer);