From 1967f72de20cc0c176375b4a1b704b322ef7dcd1 Mon Sep 17 00:00:00 2001
From: David Thompson <dthompson2@worcester.edu>
Date: Sun, 12 Jul 2020 08:19:45 -0400
Subject: render: gpu: Query GL context for GL and GLSL versions.

---
 chickadee.scm | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'chickadee.scm')

diff --git a/chickadee.scm b/chickadee.scm
index defa0a0..7b43888 100644
--- a/chickadee.scm
+++ b/chickadee.scm
@@ -235,6 +235,12 @@ border is disabled, otherwise it is enabled.")
   (sdl-init)
   (start-text-input)
   (init-audio)
+  ;; Hint that we want OpenGL 3.2 Core profile.  Doesn't mean we'll
+  ;; get it, though!
+  (sdl2:set-gl-attribute! 'context-major-version 3)
+  (sdl2:set-gl-attribute! 'context-major-version 2)
+  (sdl2:set-gl-attribute! 'context-profile-mask 1) ; core profile
+  (sdl2:set-gl-attribute! 'stencil-size 8) ; 8-bit stencil buffer
   (let* ((window (sdl2:make-window #:opengl? #t
                                    #:title window-title
                                    #:size (list window-width window-height)
-- 
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