From ab8759049d19046de9fc23ba1f77d512f32e0fe1 Mon Sep 17 00:00:00 2001
From: "alexey.lysiuk" <alexey.lysiuk@gmail.com>
Date: Sun, 23 Apr 2017 17:17:36 +0300
Subject: [PATCH] Enabled GLSW framebuffer in Cocoa backend by default

Added fallback to generic Cocoa implementation if it's not available (i.e. without OpenGL Core Profile support)
Value of vid_glswfb CVAR is now saved to configuration file
---
 src/posix/cocoa/i_video.mm | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/src/posix/cocoa/i_video.mm b/src/posix/cocoa/i_video.mm
index 542d02fdd..14120a59b 100644
--- a/src/posix/cocoa/i_video.mm
+++ b/src/posix/cocoa/i_video.mm
@@ -116,7 +116,7 @@
 
 DFrameBuffer *CreateGLSWFrameBuffer(int width, int height, bool bgra, bool fullscreen);
 
-CUSTOM_CVAR(Bool, vid_glswfb, false, CVAR_NOINITCALL)
+CUSTOM_CVAR(Bool, vid_glswfb, true, CVAR_NOINITCALL | CVAR_GLOBALCONFIG | CVAR_NOINITCALL)
 {
 	Printf("This won't take effect until " GAMENAME " is restarted.\n");
 }
@@ -658,6 +658,13 @@ DFrameBuffer* CocoaVideo::CreateFrameBuffer(const int width, const int height, c
 	else if (vid_glswfb)
 	{
 		fb = CreateGLSWFrameBuffer(width, height, bgra, fullscreen);
+
+		if (!fb->IsValid())
+		{
+			delete fb;
+
+			fb = new CocoaFrameBuffer(width, height, bgra, fullscreen);
+		}
 	}
 	else
 	{