From 4820142ac1741e9137a832cf20f2e17f6912b5c3 Mon Sep 17 00:00:00 2001
From: David Thompson <dthompson2@worcester.edu>
Date: Tue, 12 Jan 2016 08:33:35 -0500
Subject: window: Configure various OpenGL parameters.

* sly/window.scm (init-window): Set OpenGL version to 3.2, explicitly
set double buffering and vsync, and configure depth buffer size.
---
 sly/window.scm | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/sly/window.scm b/sly/window.scm
index fb7c69b..739bb71 100644
--- a/sly/window.scm
+++ b/sly/window.scm
@@ -93,7 +93,12 @@
 
 (define (init-window)
   (set! %sdl-window (sdl2:make-window #:opengl? #t #:show? #t))
-  (set! %gl-context (sdl2:make-gl-context %sdl-window)))
+  (sdl2:set-gl-attribute! 'context-major-version 3)
+  (sdl2:set-gl-attribute! 'context-minor-version 2)
+  (sdl2:set-gl-attribute! 'double-buffer 1)
+  (sdl2:set-gl-attribute! 'depth-size 24)
+  (set! %gl-context (sdl2:make-gl-context %sdl-window))
+  (sdl2:set-gl-swap-interval! 'vsync))
 
 (define (open-window window)
   (let ((res (window-resolution window)))
-- 
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