From 4d6f99c95dc689d92871709b4d2e9e363f6b1e57 Mon Sep 17 00:00:00 2001
From: Carlos Garnacho <carlosg@gnome.org>
Date: Fri, 8 Nov 2019 15:30:53 +0100
Subject: [PATCH] backend/native: Use high priority contexts for secondary GPUs

Ensure the context requests EGL_CONTEXT_PRIORITY_HIGH_IMG, and
that we use cogl_egl_create_context() to ensure that is honored.

https://gitlab.gnome.org/GNOME/mutter/merge_requests/923
---
 src/backends/meta-egl.c                    | 14 ++++----------
 src/backends/native/meta-renderer-native.c |  1 +
 2 files changed, 5 insertions(+), 10 deletions(-)

diff --git a/src/backends/meta-egl.c b/src/backends/meta-egl.c
index fdeff4f77..5f9a8d244 100644
--- a/src/backends/meta-egl.c
+++ b/src/backends/meta-egl.c
@@ -35,6 +35,7 @@
 #include "backends/meta-backend-private.h"
 #include "backends/meta-egl.h"
 #include "backends/meta-egl-ext.h"
+#include "cogl/cogl-egl.h"
 #include "meta/util.h"
 
 struct _MetaEgl
@@ -506,16 +507,9 @@ meta_egl_create_context (MetaEgl      *egl,
                          const EGLint *attrib_list,
                          GError      **error)
 {
-  EGLContext context;
-
-  context = eglCreateContext (display, config, share_context, attrib_list);
-  if (context == EGL_NO_CONTEXT)
-    {
-      set_egl_error (error);
-      return EGL_NO_CONTEXT;
-    }
-
-  return context;
+  return cogl_egl_create_context (display, config,
+                                  share_context, attrib_list,
+                                  error);
 }
 
 gboolean
diff --git a/src/backends/native/meta-renderer-native.c b/src/backends/native/meta-renderer-native.c
index 84b6a7323..cd549ece0 100644
--- a/src/backends/native/meta-renderer-native.c
+++ b/src/backends/native/meta-renderer-native.c
@@ -3509,6 +3509,7 @@ create_secondary_egl_context (MetaEgl   *egl,
 {
   EGLint attributes[] = {
     EGL_CONTEXT_CLIENT_VERSION, 3,
+    EGL_CONTEXT_PRIORITY_LEVEL_IMG, EGL_CONTEXT_PRIORITY_HIGH_IMG,
     EGL_NONE
   };