From 606ab1ad32078a9dc98cf2c60b25c387d60fec51 Mon Sep 17 00:00:00 2001
From: baldurk <baldurk@baldurk.org>
Date: Mon, 30 Mar 2020 15:13:50 +0100
Subject: [PATCH] Add in forced flush after texture prepare on GL. Closes #1799

* On some GPUs (ARM Mali in particular it seems) when postponed resources are
  prepared then immediately serialised the readback doesn't get the correct
  data.
---
 renderdoc/driver/gl/gl_initstate.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/renderdoc/driver/gl/gl_initstate.cpp b/renderdoc/driver/gl/gl_initstate.cpp
index e540e5cdf..651d6bea5 100644
--- a/renderdoc/driver/gl/gl_initstate.cpp
+++ b/renderdoc/driver/gl/gl_initstate.cpp
@@ -891,6 +891,9 @@ void GLResourceManager::PrepareTextureInitialContents(ResourceId liveid, Resourc
         }
       }
 
+      GL.glFlush();
+      GL.glFinish();
+
       if(avoidCopySubImage)
       {
         pack.Apply(false);