Add an explicit OpenGL version test

Apparently there are some pre 3.3 drivers that include the texture_storage extension. Fixes #258
2017-12-31 08:36:50 +05:30 · 2017-12-31 08:36:50 +05:30 · f7e84df332
commit f7e84df332
parent bd654d22f4
1 changed files with 3 additions and 0 deletions
--- a/kitty/gl.h
+++ b/kitty/gl.h
@ -59,6 +59,9 @@ gl_init() {
        ARB_TEST(texture_storage);
 #undef ARB_TEST
        glad_loaded = true;
+        if (GLVersion.major < 3 || (GLVersion.major == 3 && GLVersion.minor < 3)) {
+            fatal("OpenGL version is %d.%d, version >= 3.3 required for kitty", GLVersion.major, GLVersion.minor);
+        }
    }
 }