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File _service:extract_file:nvidia-wayland-backported-fixes-0003-Bug-1898476-Wayland-Lock-Wayland-surface-before-Swap.patch of Package LibreWolf (Revision 886cff81c1fa6d815da02c763d32af26)

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: stransky <stransky@redhat.com>
Date: Wed, 10 Jul 2024 10:59:53 +0000
Subject: [PATCH] Bug 1898476 [Wayland] Lock Wayland surface before Swap
 buffers in RenderCompositorEGL r=emilio

Depends on D214884

Differential Revision: https://phabricator.services.mozilla.com/D214885
---
 gfx/webrender_bindings/RenderCompositorEGL.cpp | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/gfx/webrender_bindings/RenderCompositorEGL.cpp b/gfx/webrender_bindings/RenderCompositorEGL.cpp
index ccabfd375f37..ba10c40657d9 100644
--- a/gfx/webrender_bindings/RenderCompositorEGL.cpp
+++ b/gfx/webrender_bindings/RenderCompositorEGL.cpp
@@ -154,6 +154,16 @@ RenderedFrameId RenderCompositorEGL::EndFrame(
     }
     gl()->SetDamage(bufferInvalid);
   }
+
+#ifdef MOZ_WIDGET_GTK
+  // Rendering on Wayland has to be atomic (buffer attach + commit) and
+  // wayland surface is also used by main thread so lock it before
+  // we paint at SwapBuffers().
+  UniquePtr<MozContainerSurfaceLock> lock;
+  if (auto* gtkWidget = mWidget->AsGTK()) {
+    lock = gtkWidget->LockSurface();
+  }
+#endif
   gl()->SwapBuffers();
   return frameId;
 }

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File _service:extract_file:nvidia-wayland-backported-fixes-0003-Bug-1898476-Wayland-Lock-Wayland-surface-before-Swap.patch of Package LibreWolf (Revision 886cff81c1fa6d815da02c763d32af26)

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