Fixed: Don't crash if GL_VERSION returns NULL (it should never happen)

This commit is contained in:
kervala 2015-12-27 16:06:35 +01:00
parent afa53e242e
commit d9265f36cf
2 changed files with 17 additions and 8 deletions

View file

@ -1567,11 +1567,20 @@ void registerGlExtensions(CGlExtensions &ext)
// OpenGL 1.2 ??
const char *nglVersion = (const char *)glGetString (GL_VERSION);
if (nglVersion)
{
sint a = 0, b = 0;
// 1.2*** ???
sscanf(nglVersion, "%d.%d", &a, &b);
ext.Version1_2 = (a==1 && b>=2) || (a>=2);
}
else
{
nlwarning("3D: Unable to get GL_VERSION, OpenGL 1.2 should be supported on all recent GPU...");
ext.Version1_2 = true;
}
const char *vendor = (const char *) glGetString (GL_VENDOR);
const char *renderer = (const char *) glGetString (GL_RENDERER);