From 305e64a2634d27ec5eeaa380993eeffb7132db89 Mon Sep 17 00:00:00 2001
From: fgsfds <derp.primus@gmail.com>
Date: Sat, 18 Nov 2023 00:43:01 +0100
Subject: [PATCH] port: restore glReadBuffer value after changing it

this might fix reshade
---
 port/fast3d/gfx_opengl.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/port/fast3d/gfx_opengl.cpp b/port/fast3d/gfx_opengl.cpp
index eb92631a7..313155bbb 100644
--- a/port/fast3d/gfx_opengl.cpp
+++ b/port/fast3d/gfx_opengl.cpp
@@ -1161,6 +1161,8 @@ void gfx_opengl_copy_framebuffer(int fb_dst, int fb_src, int left, int top, bool
 
     glBindFramebuffer(GL_FRAMEBUFFER, framebuffers[current_framebuffer].fbo);
 
+    glReadBuffer(GL_BACK);
+
     glEnable(GL_SCISSOR_TEST);
 }