From c79d7f56dd0eacfea761984b49a493f5a730401b Mon Sep 17 00:00:00 2001
From: Vlad Zahorodnii <vlad.zahorodnii@kde.org>
Date: Thu, 22 Jul 2021 13:00:06 +0300
Subject: [PATCH] kwineffects: Disable OpenGLContext sharing check in
 EffectQuickView

On Wayland, QOpenGLContext::shareContext() will always return null even
if the newly created context has a share context.
---
 src/libkwineffects/kwineffectquickview.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/libkwineffects/kwineffectquickview.cpp b/src/libkwineffects/kwineffectquickview.cpp
index 15830f17c2..6fc19d71a2 100644
--- a/src/libkwineffects/kwineffectquickview.cpp
+++ b/src/libkwineffects/kwineffectquickview.cpp
@@ -101,7 +101,8 @@ EffectQuickView::EffectQuickView(QObject *parent, ExportMode exportMode)
         d->m_renderControl->initialize(d->m_glcontext.data());
         d->m_glcontext->doneCurrent();
 
-        if (!d->m_glcontext->shareContext()) {
+        // On Wayland, opengl contexts are implicitly shared.
+        if (!effects->waylandDisplay() && !d->m_glcontext->shareContext()) {
             qCDebug(LIBKWINEFFECTS) << "Failed to create a shared context, falling back to raster rendering";
             // still render via GL, but blit for presentation
             d->m_useBlit = true;