From d16e940c4dd87ab0b48ac290839ea9859ec4dbd9 Mon Sep 17 00:00:00 2001
From: tildearrow <me@tildearrow.org>
Date: Mon, 6 May 2024 16:40:19 -0500
Subject: [PATCH] fall back to software if no matching GL pixel form

at available
---
 src/gui/gui.cpp | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/src/gui/gui.cpp b/src/gui/gui.cpp
index 168bf614d..6fd70bd23 100644
--- a/src/gui/gui.cpp
+++ b/src/gui/gui.cpp
@@ -6987,7 +6987,14 @@ bool FurnaceGUI::init() {
   logD("creating window...");
   sdlWin=SDL_CreateWindow("Furnace",scrX,scrY,scrW,scrH,SDL_WINDOW_RESIZABLE|SDL_WINDOW_ALLOW_HIGHDPI|(scrMax?SDL_WINDOW_MAXIMIZED:0)|(fullScreen?SDL_WINDOW_FULLSCREEN_DESKTOP:0)|rend->getWindowFlags());
   if (sdlWin==NULL) {
-    lastError=fmt::sprintf("could not open window! %s",SDL_GetError());
+    const char* sdlErr=SDL_GetError();
+    lastError=fmt::sprintf("could not open window! %s",sdlErr);
+    if (settings.renderBackend!="Software" && strcmp(sdlErr,"No matching GL pixel format available")==0) {
+      settings.renderBackend="Software";
+      e->setConf("renderBackend","Software");
+      e->saveConf();
+      lastError+="\r\nfalling back to software renderer. please restart Furnace.";
+    }
     return false;
   }