From abdb682d379ff84ac6169410ecb447dd200dacc1 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Cl=C3=A9ment=20Foucault?= <foucault.clem@gmail.com>
Date: Thu, 16 Oct 2025 19:24:55 +0200
Subject: [PATCH] Fix #141198: EEVEE: DOF is incorrect at low resolutions on
 AMD + Mesa

Caused by some driver synchronization bug.
Also fixes #147879.
---
 source/blender/draw/engines/eevee/eevee_depth_of_field.cc | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/source/blender/draw/engines/eevee/eevee_depth_of_field.cc b/source/blender/draw/engines/eevee/eevee_depth_of_field.cc
index 338ad52a0bc..95e2701e0ca 100644
--- a/source/blender/draw/engines/eevee/eevee_depth_of_field.cc
+++ b/source/blender/draw/engines/eevee/eevee_depth_of_field.cc
@@ -728,6 +728,14 @@ void DepthOfField::render(View &view,
 
     scatter_fb.ensure(GPU_ATTACHMENT_NONE, GPU_ATTACHMENT_TEXTURE(color_tx.current()));
 
+    if (GPU_type_matches_ex(
+            GPU_DEVICE_ATI, GPU_OS_UNIX, GPU_DRIVER_OPENSOURCE, GPU_BACKEND_OPENGL))
+    {
+      /* WORKAROUND(fclem): Mesa has some synchronization issues between the previous compute
+       * shader and the following graphic pass (see #141198). */
+      GPU_flush();
+    }
+
     GPU_framebuffer_bind(scatter_fb);
     drw.submit(scatter_ps, view);