optional software render to fix flutter render problem on some nvidia

card

Signed-off-by: 21pages <pages21@163.com>

src/core_main.rs

@@ -38,6 +38,17 @@ pub fn core_main() -> Option<Vec<String>> {
         }
         i += 1;
     }
+    #[cfg(target_os = "linux")]
+    #[cfg(feature = "flutter")]
+    {
+        crate::platform::linux::register_breakdown_handler();
+        let (k, v) = ("LIBGL_ALWAYS_SOFTWARE", "true");
+        if !hbb_common::config::Config::get_option("allow-always-software-render").is_empty() {
+            std::env::set_var(k, v);
+        } else {
+            std::env::remove_var(k);
+        }
+    }
     #[cfg(feature = "flutter")]
     if _is_flutter_connect {
         return core_main_invoke_new_connection(std::env::args());