From 9195d6f6de4f02859492502eb44b268cb9b2b51f Mon Sep 17 00:00:00 2001
From: fruchti <fruchti@gvfr.de>
Date: Sat, 27 Apr 2024 14:32:05 +0200
Subject: [PATCH] Horizon EDA: Fix Intel GPU redraw issue

---
 overlays/default.nix                         |  1 +
 overlays/horizon-eda.nix                     | 13 +++++++++++++
 overlays/horizon_software_draw_surface.patch | 10 ++++++++++
 3 files changed, 24 insertions(+)
 create mode 100644 overlays/horizon-eda.nix
 create mode 100644 overlays/horizon_software_draw_surface.patch

diff --git a/overlays/default.nix b/overlays/default.nix
index 7cd1fd2..eab7738 100644
--- a/overlays/default.nix
+++ b/overlays/default.nix
@@ -2,5 +2,6 @@
 {
     imports = [
         ./burp.nix
+        ./horizon-eda.nix
     ];
 }
diff --git a/overlays/horizon-eda.nix b/overlays/horizon-eda.nix
new file mode 100644
index 0000000..3022fdf
--- /dev/null
+++ b/overlays/horizon-eda.nix
@@ -0,0 +1,13 @@
+{ config, ... }:
+{
+    nixpkgs.overlays = [
+        (self: super: {
+            horizon-eda = (super.horizon-eda.overrideAttrs (old: {
+                # Add an environment variable to fix redraw issues on Intel Graphics
+                patches = [
+                    ./horizon_software_draw_surface.patch
+                ];
+            }));
+        })
+    ];
+}
diff --git a/overlays/horizon_software_draw_surface.patch b/overlays/horizon_software_draw_surface.patch
new file mode 100644
index 0000000..c44c667
--- /dev/null
+++ b/overlays/horizon_software_draw_surface.patch
@@ -0,0 +1,10 @@
+diff --git a/org.horizon_eda.HorizonEDA.desktop b/org.horizon_eda.HorizonEDA.desktop
+index 7551df54..d8df7800 100644
+--- a/org.horizon_eda.HorizonEDA.desktop
++++ b/org.horizon_eda.HorizonEDA.desktop
+@@ -5,4 +5,4 @@ Categories=Development;Engineering;Electronics;
+ Type=Application
+ Terminal=false
+ Icon=org.horizon_eda.HorizonEDA
+-Exec=horizon-eda %U
++Exec=env GDK_GL=software-draw-surface horizon-eda %U