Improve x::get_best_format

Allow bits_per_rgb_value to be >= 8
Pick the first matched depth.

Ended up matching a 32 bit depth (TrueColor) as all 24 bit depths
(DirectColor) as they used 11 bits per rgb value.
The screen did not support creating a window with depth 32 depth :/

1 files changed, 2 insertions, 1 deletions

diff --git a/src/x.cc b/src/x.cc
index d5bdd5a..53b09d4 100644
--- a/src/x.cc
+++ b/src/x.cc
@@ -221,7 +221,7 @@ Format get_best_format(xcb_connection_t* conn, xcb_screen_t const* screen,
         continue;
       }
       PixelFormat f;
-      if (v->bits_per_rgb_value != 8) continue;
+      if (v->bits_per_rgb_value < 8) continue;
       if (v->red_mask == 0xff0000 && v->green_mask == 0xff00
           && v->blue_mask == 0xff) {
         f = ARGB_8888;
@@ -258,6 +258,7 @@ Format get_best_format(xcb_connection_t* conn, xcb_screen_t const* screen,
       }
       if (render) break;
     }
+    if (visual && (!render_formats || render)) break;
     xcb_depth_next(&iter);
   }
   if (!depth) {