pixman_region32_init_rect (&clip_region, 50, 0, 100, 200);
pixman_image_set_clip_region32 (src_img, &clip_region);
pixman_image_set_source_clipping (src_img, TRUE);
+ pixman_image_set_has_client_clip (src_img, TRUE);
pixman_image_set_transform (src_img, &trans);
pixman_image_set_repeat (src_img, PIXMAN_REPEAT_NORMAL);