Port more stuff to xcb

To avoid interoperability issues between xcb and xlib.

src/x.h

@@ -1,6 +1,9 @@
 #pragma once
 #include <stdbool.h>
 #include <X11/Xlib.h>
+#include <xcb/xcb.h>
+#include <xcb/render.h>
+#include <xcb/xcb_renderutil.h>
 typedef struct session session_t;
 typedef struct winprop winprop_t;
 /**
@@ -35,3 +38,31 @@ wid_get_prop_window(session_t *ps, Window wid, Atom aprop);
  */
 bool wid_get_text_prop(session_t *ps, Window wid, Atom prop,
     char ***pstrlst, int *pnstr);
+
+xcb_render_pictforminfo_t *x_get_pictform_for_visual(session_t *, xcb_visualid_t);
+
+xcb_render_picture_t x_create_picture_with_pictfmt_and_pixmap(
+  session_t *ps, xcb_render_pictforminfo_t *pictfmt,
+  xcb_pixmap_t pixmap, unsigned long valuemask,
+  const xcb_render_create_picture_value_list_t *attr)
+__attribute__((nonnull(1, 2)));
+
+xcb_render_picture_t x_create_picture_with_visual_and_pixmap(
+  session_t *ps, xcb_visualid_t visual,
+  xcb_pixmap_t pixmap, unsigned long valuemask,
+  const xcb_render_create_picture_value_list_t *attr)
+__attribute__((nonnull(1)));
+
+xcb_render_picture_t x_create_picture_with_standard_and_pixmap(
+  session_t *ps, xcb_pict_standard_t standard,
+  xcb_pixmap_t pixmap, unsigned long valuemask,
+  const xcb_render_create_picture_value_list_t *attr)
+__attribute__((nonnull(1)));
+
+/**
+ * Create an picture.
+ */
+xcb_render_picture_t
+x_create_picture(session_t *ps, int wid, int hei,
+    xcb_render_pictforminfo_t *pictfmt, unsigned long valuemask,
+    const xcb_render_create_picture_value_list_t *attr);