platformsupport/scenes: move egldisplay code into a helper class

src/backends/drm/drm_backend.cpp

@@ -535,4 +535,9 @@ const std::vector<std::unique_ptr<DrmGpu>> &DrmBackend::gpus() const
 {
     return m_gpus;
 }
+
+EglDisplay *DrmBackend::sceneEglDisplayObject() const
+{
+    return m_gpus.front()->eglDisplay();
+}
 }

src/backends/drm/drm_backend.h

@@ -47,6 +47,7 @@ public:
     std::unique_ptr<InputBackend> createInputBackend() override;
     std::unique_ptr<QPainterBackend> createQPainterBackend() override;
     std::unique_ptr<OpenGLBackend> createOpenGLBackend() override;
+    EglDisplay *sceneEglDisplayObject() const override;
 
     std::optional<DmaBufParams> testCreateDmaBuf(const QSize &size, quint32 format, const QVector<uint64_t> &modifiers) override;
     std::shared_ptr<DmaBufTexture> createDmaBufTexture(const QSize &size, quint32 format, const uint64_t modifier) override;

src/backends/drm/drm_egl_backend.cpp

@@ -60,11 +60,11 @@ EglGbmBackend::~EglGbmBackend()
 bool EglGbmBackend::initializeEgl()
 {
     initClientExtensions();
-    EGLDisplay display = m_backend->primaryGpu()->eglDisplay();
+    auto display = m_backend->primaryGpu()->eglDisplay();
 
     // Use eglGetPlatformDisplayEXT() to get the display pointer
     // if the implementation supports it.
-    if (display == EGL_NO_DISPLAY) {
+    if (!display) {
         const bool hasMesaGBM = hasClientExtension(QByteArrayLiteral("EGL_MESA_platform_gbm"));
         const bool hasKHRGBM = hasClientExtension(QByteArrayLiteral("EGL_KHR_platform_gbm"));
         const GLenum platform = hasMesaGBM ? EGL_PLATFORM_GBM_MESA : EGL_PLATFORM_GBM_KHR;
@@ -80,15 +80,14 @@ bool EglGbmBackend::initializeEgl()
             return false;
         }
 
-        display = eglGetPlatformDisplayEXT(platform, m_backend->primaryGpu()->gbmDevice(), nullptr);
+        m_backend->primaryGpu()->setEglDisplay(EglDisplay::create(eglGetPlatformDisplayEXT(platform, m_backend->primaryGpu()->gbmDevice(), nullptr)));
-        m_backend->primaryGpu()->setEglDisplay(display);
+        display = m_backend->primaryGpu()->eglDisplay();
-    }
+        if (!display) {
-
+            return false;
-    if (display == EGL_NO_DISPLAY) {
+        }
-        return false;
     }
     setEglDisplay(display);
-    return initEglAPI();
+    return true;
 }
 
 void EglGbmBackend::init()
@@ -102,7 +101,6 @@ void EglGbmBackend::init()
         setFailed("Could not initialize rendering context");
         return;
     }
-    initBufferAge();
     initKWinGL();
     initWayland();
 }

src/backends/drm/drm_gpu.cpp

@@ -94,9 +94,7 @@ DrmGpu::DrmGpu(DrmBackend *backend, const QString &devNode, int fd, dev_t device
 DrmGpu::~DrmGpu()
 {
     removeOutputs();
-    if (m_eglDisplay != EGL_NO_DISPLAY) {
+    m_eglDisplay.reset();
-        eglTerminate(m_eglDisplay);
-    }
     m_crtcs.clear();
     m_connectors.clear();
     m_planes.clear();
@@ -671,14 +669,14 @@ gbm_device *DrmGpu::gbmDevice() const
     return m_gbmDevice;
 }
 
-EGLDisplay DrmGpu::eglDisplay() const
+EglDisplay *DrmGpu::eglDisplay() const
 {
-    return m_eglDisplay;
+    return m_eglDisplay.get();
 }
 
-void DrmGpu::setEglDisplay(EGLDisplay display)
+void DrmGpu::setEglDisplay(std::unique_ptr<EglDisplay> &&display)
 {
-    m_eglDisplay = display;
+    m_eglDisplay = std::move(display);
 }
 
 bool DrmGpu::addFB2ModifiersSupported() const

src/backends/drm/drm_gpu.h

@@ -35,6 +35,7 @@ class EglGbmBackend;
 class DrmAbstractOutput;
 class DrmRenderBackend;
 class DrmVirtualOutput;
+class EglDisplay;
 
 class DrmLease : public QObject
 {
@@ -75,7 +76,7 @@ public:
     bool asyncPageflipSupported() const;
     bool isNVidia() const;
     gbm_device *gbmDevice() const;
-    EGLDisplay eglDisplay() const;
+    EglDisplay *eglDisplay() const;
     DrmBackend *platform() const;
     /**
      * Returns the clock from which presentation timestamps are sourced. The returned value
@@ -88,7 +89,7 @@ public:
     QVector<DrmOutput *> drmOutputs() const;
     const QVector<DrmPipeline *> pipelines() const;
 
-    void setEglDisplay(EGLDisplay display);
+    void setEglDisplay(std::unique_ptr<EglDisplay> &&display);
 
     bool updateOutputs();
     void removeOutputs();
@@ -134,7 +135,7 @@ private:
     bool m_isRemoved = false;
     clockid_t m_presentationClock;
     gbm_device *m_gbmDevice;
-    EGLDisplay m_eglDisplay = EGL_NO_DISPLAY;
+    std::unique_ptr<EglDisplay> m_eglDisplay;
     DrmBackend *const m_platform;
 
     std::vector<std::unique_ptr<DrmPlane>> m_planes;

src/backends/virtual/virtual_backend.cpp

@@ -20,12 +20,7 @@ VirtualBackend::VirtualBackend(QObject *parent)
 {
 }
 
-VirtualBackend::~VirtualBackend()
+VirtualBackend::~VirtualBackend() = default;
-{
-    if (sceneEglDisplay() != EGL_NO_DISPLAY) {
-        eglTerminate(sceneEglDisplay());
-    }
-}
 
 bool VirtualBackend::initialize()
 {
@@ -84,4 +79,14 @@ void VirtualBackend::setVirtualOutputs(const QVector<QRect> &geometries, QVector
     Q_EMIT outputsQueried();
 }
 
+void VirtualBackend::setEglDisplay(std::unique_ptr<EglDisplay> &&display)
+{
+    m_display = std::move(display);
+}
+
+EglDisplay *VirtualBackend::sceneEglDisplayObject() const
+{
+    return m_display.get();
+}
+
 } // namespace KWin

src/backends/virtual/virtual_backend.h

@@ -44,6 +44,9 @@ public:
         return QVector<CompositingType>{OpenGLCompositing, QPainterCompositing};
     }
 
+    void setEglDisplay(std::unique_ptr<EglDisplay> &&display);
+    EglDisplay *sceneEglDisplayObject() const override;
+
 Q_SIGNALS:
     void virtualOutputsSet(bool countChanged);
 
@@ -51,6 +54,7 @@ private:
     VirtualOutput *createOutput(const QPoint &position, const QSize &size, qreal scale);
 
     QVector<VirtualOutput *> m_outputs;
+    std::unique_ptr<EglDisplay> m_display;
 };
 
 } // namespace KWin

src/backends/virtual/virtual_egl_backend.cpp

@@ -86,24 +86,24 @@ VirtualEglBackend::~VirtualEglBackend()
 bool VirtualEglBackend::initializeEgl()
 {
     initClientExtensions();
-    EGLDisplay display = m_backend->sceneEglDisplay();
+    auto display = m_backend->sceneEglDisplayObject();
 
     // Use eglGetPlatformDisplayEXT() to get the display pointer
     // if the implementation supports it.
-    if (display == EGL_NO_DISPLAY) {
+    if (!display) {
         // first try surfaceless
         if (hasClientExtension(QByteArrayLiteral("EGL_MESA_platform_surfaceless"))) {
-            display = eglGetPlatformDisplayEXT(EGL_PLATFORM_SURFACELESS_MESA, EGL_DEFAULT_DISPLAY, nullptr);
+            m_backend->setEglDisplay(EglDisplay::create(eglGetPlatformDisplayEXT(EGL_PLATFORM_SURFACELESS_MESA, EGL_DEFAULT_DISPLAY, nullptr)));
+            display = m_backend->sceneEglDisplayObject();
         } else {
             qCWarning(KWIN_VIRTUAL) << "Extension EGL_MESA_platform_surfaceless not available";
         }
-    }
+        if (!display) {
-
+            return false;
-    if (display == EGL_NO_DISPLAY) {
+        }
-        return false;
     }
     setEglDisplay(display);
-    return initEglAPI();
+    return true;
 }
 
 void VirtualEglBackend::init()

src/backends/wayland/wayland_backend.cpp

@@ -422,10 +422,7 @@ WaylandBackend::WaylandBackend(const WaylandBackendOptions &options, QObject *pa
 
 WaylandBackend::~WaylandBackend()
 {
-    if (sceneEglDisplay() != EGL_NO_DISPLAY) {
+    m_eglDisplay.reset();
-        eglTerminate(sceneEglDisplay());
-    }
-
     destroyOutputs();
 
     m_seat.reset();
@@ -624,6 +621,15 @@ std::shared_ptr<DmaBufTexture> WaylandBackend::createDmaBufTexture(const QSize &
     return std::make_shared<DmaBufTexture>(m_eglBackend->importDmaBufAsTexture(attributes), std::move(attributes));
 }
 
+void WaylandBackend::setEglDisplay(std::unique_ptr<EglDisplay> &&display)
+{
+    m_eglDisplay = std::move(display);
+}
+
+EglDisplay *WaylandBackend::sceneEglDisplayObject() const
+{
+    return m_eglDisplay.get();
+}
 }
 
 } // KWin

src/backends/wayland/wayland_backend.h

@@ -229,6 +229,8 @@ public:
     {
         m_eglBackend = eglBackend;
     }
+    void setEglDisplay(std::unique_ptr<EglDisplay> &&display);
+    EglDisplay *sceneEglDisplayObject() const override;
 
 Q_SIGNALS:
     void pointerLockChanged(bool locked);
@@ -247,6 +249,7 @@ private:
     bool m_pointerLockRequested = false;
     FileDescriptor m_drmFileDescriptor;
     gbm_device *m_gbmDevice;
+    std::unique_ptr<EglDisplay> m_eglDisplay;
 };
 
 } // namespace Wayland

src/backends/wayland/wayland_egl_backend.cpp

@@ -340,11 +340,11 @@ bool WaylandEglBackend::createEglWaylandOutput(Output *waylandOutput)
 bool WaylandEglBackend::initializeEgl()
 {
     initClientExtensions();
-    EGLDisplay display = m_backend->sceneEglDisplay();
+    auto display = m_backend->sceneEglDisplayObject();
 
     // Use eglGetPlatformDisplayEXT() to get the display pointer
     // if the implementation supports it.
-    if (display == EGL_NO_DISPLAY) {
+    if (!display) {
         m_havePlatformBase = hasClientExtension(QByteArrayLiteral("EGL_EXT_platform_base"));
         if (m_havePlatformBase) {
             // Make sure that the wayland platform is supported
@@ -352,17 +352,17 @@ bool WaylandEglBackend::initializeEgl()
                 return false;
             }
 
-            display = eglGetPlatformDisplayEXT(EGL_PLATFORM_WAYLAND_EXT, m_backend->display()->nativeDisplay(), nullptr);
+            m_backend->setEglDisplay(EglDisplay::create(eglGetPlatformDisplayEXT(EGL_PLATFORM_WAYLAND_EXT, m_backend->display()->nativeDisplay(), nullptr)));
         } else {
-            display = eglGetDisplay(m_backend->display()->nativeDisplay());
+            m_backend->setEglDisplay(EglDisplay::create(eglGetDisplay(m_backend->display()->nativeDisplay())));
+        }
+        display = m_backend->sceneEglDisplayObject();
+        if (!display) {
+            return false;
         }
     }
-
-    if (display == EGL_NO_DISPLAY) {
-        return false;
-    }
     setEglDisplay(display);
-    return initEglAPI();
+    return true;
 }
 
 void WaylandEglBackend::init()
@@ -377,7 +377,6 @@ void WaylandEglBackend::init()
     }
 
     initKWinGL();
-    initBufferAge();
     initWayland();
 }
 

src/backends/x11/standalone/x11_standalone_backend.cpp

@@ -119,9 +119,7 @@ X11StandaloneBackend::X11StandaloneBackend(QObject *parent)
 
 X11StandaloneBackend::~X11StandaloneBackend()
 {
-    if (sceneEglDisplay() != EGL_NO_DISPLAY) {
+    m_eglDisplay.reset();
-        eglTerminate(sceneEglDisplay());
-    }
     XRenderUtils::cleanup();
 }
 
@@ -511,4 +509,13 @@ void X11StandaloneBackend::updateRefreshRate()
     m_renderLoop->setRefreshRate(refreshRate);
 }
 
+void X11StandaloneBackend::setEglDisplay(std::unique_ptr<EglDisplay> &&display)
+{
+    m_eglDisplay = std::move(display);
+}
+
+EglDisplay *X11StandaloneBackend::sceneEglDisplayObject() const
+{
+    return m_eglDisplay.get();
+}
 }

src/backends/x11/standalone/x11_standalone_backend.h

@@ -69,6 +69,9 @@ public:
     RenderLoop *renderLoop() const;
     Outputs outputs() const override;
 
+    void setEglDisplay(std::unique_ptr<EglDisplay> &&display);
+    EglDisplay *sceneEglDisplayObject() const override;
+
 private:
     /**
      * Tests whether GLX is supported and returns @c true
@@ -98,6 +101,7 @@ private:
     std::unique_ptr<X11Keyboard> m_keyboard;
     std::unique_ptr<RenderLoop> m_renderLoop;
     QVector<Output *> m_outputs;
+    std::unique_ptr<EglDisplay> m_eglDisplay;
 };
 
 }

src/backends/x11/standalone/x11_standalone_egl_backend.cpp

@@ -92,7 +92,7 @@ std::unique_ptr<SurfaceTexture> EglBackend::createSurfaceTextureX11(SurfacePixma
 void EglBackend::init()
 {
     QOpenGLContext *qtShareContext = QOpenGLContext::globalShareContext();
-    EGLDisplay shareDisplay = EGL_NO_DISPLAY;
+    ::EGLDisplay shareDisplay = EGL_NO_DISPLAY;
     EGLContext shareContext = EGL_NO_CONTEXT;
     if (qtShareContext) {
         qDebug(KWIN_X11STANDALONE) << "Global share context format:" << qtShareContext->format();
@@ -112,7 +112,7 @@ void EglBackend::init()
 
     m_fbo = std::make_unique<GLFramebuffer>(0, workspace()->geometry().size());
 
-    kwinApp()->outputBackend()->setSceneEglDisplay(shareDisplay);
+    m_backend->setEglDisplay(EglDisplay::create(shareDisplay, false));
     kwinApp()->outputBackend()->setSceneEglGlobalShareContext(shareContext);
 
     qputenv("EGL_PLATFORM", "x11");
@@ -172,11 +172,11 @@ void EglBackend::init()
 bool EglBackend::initRenderingContext()
 {
     initClientExtensions();
-    EGLDisplay dpy = kwinApp()->outputBackend()->sceneEglDisplay();
+    auto display = kwinApp()->outputBackend()->sceneEglDisplayObject();
 
     // Use eglGetPlatformDisplayEXT() to get the display pointer
     // if the implementation supports it.
-    if (dpy == EGL_NO_DISPLAY) {
+    if (!display) {
         m_havePlatformBase = hasClientExtension(QByteArrayLiteral("EGL_EXT_platform_base"));
         if (m_havePlatformBase) {
             // Make sure that the X11 platform is supported
@@ -186,19 +186,18 @@ bool EglBackend::initRenderingContext()
                 return false;
             }
 
-            dpy = eglGetPlatformDisplayEXT(EGL_PLATFORM_X11_EXT, m_backend->display(), nullptr);
+            m_backend->setEglDisplay(EglDisplay::create(eglGetPlatformDisplayEXT(EGL_PLATFORM_X11_EXT, m_backend->display(), nullptr)));
         } else {
-            dpy = eglGetDisplay(m_backend->display());
+            m_backend->setEglDisplay(EglDisplay::create(eglGetDisplay(m_backend->display())));
+        }
+        display = m_backend->sceneEglDisplayObject();
+        if (!display) {
+            qCWarning(KWIN_CORE) << "Failed to get the EGLDisplay";
+            return false;
         }
     }
 
-    if (dpy == EGL_NO_DISPLAY) {
+    setEglDisplay(display);
-        qCWarning(KWIN_CORE) << "Failed to get the EGLDisplay";
-        return false;
-    }
-    setEglDisplay(dpy);
-    initEglAPI();
-
     initBufferConfigs();
 
     if (!m_overlayWindow->create()) {
@@ -260,7 +259,6 @@ EGLSurface EglBackend::createSurface(xcb_window_t window)
 
 bool EglBackend::initBufferConfigs()
 {
-    initBufferAge();
     const EGLint config_attribs[] = {
         EGL_SURFACE_TYPE,
         EGL_WINDOW_BIT | (supportsBufferAge() ? 0 : EGL_SWAP_BEHAVIOR_PRESERVED_BIT),

src/backends/x11/windowed/x11_windowed_backend.cpp

@@ -169,10 +169,7 @@ X11WindowedBackend::~X11WindowedBackend()
     m_pointerDevice.reset();
     m_keyboardDevice.reset();
     m_touchDevice.reset();
-
+    m_eglDisplay.reset();
-    if (sceneEglDisplay() != EGL_NO_DISPLAY) {
-        eglTerminate(sceneEglDisplay());
-    }
 
     if (m_gbmDevice) {
         gbm_device_destroy(m_gbmDevice);
@@ -801,4 +798,14 @@ void X11WindowedBackend::destroyOutputs()
     }
 }
 
+void X11WindowedBackend::setEglDisplay(std::unique_ptr<EglDisplay> &&display)
+{
+    m_eglDisplay = std::move(display);
+}
+
+EglDisplay *X11WindowedBackend::sceneEglDisplayObject() const
+{
+    return m_eglDisplay.get();
+}
+
 } // namespace KWin

src/backends/x11/windowed/x11_windowed_backend.h

@@ -124,6 +124,9 @@ public:
     X11WindowedInputDevice *keyboardDevice() const;
     X11WindowedInputDevice *touchDevice() const;
 
+    void setEglDisplay(std::unique_ptr<EglDisplay> &&display);
+    EglDisplay *sceneEglDisplayObject() const override;
+
 private:
     void createOutputs();
     void grabKeyboard(xcb_timestamp_t time);
@@ -174,6 +177,7 @@ private:
 
     FileDescriptor m_drmFileDescriptor;
     gbm_device *m_gbmDevice = nullptr;
+    std::unique_ptr<EglDisplay> m_eglDisplay;
 
     QVector<X11WindowedOutput *> m_outputs;
 };

src/backends/x11/windowed/x11_windowed_egl_backend.cpp

@@ -276,11 +276,11 @@ X11WindowedBackend *X11WindowedEglBackend::backend() const
 bool X11WindowedEglBackend::initializeEgl()
 {
     initClientExtensions();
-    EGLDisplay dpy = kwinApp()->outputBackend()->sceneEglDisplay();
+    auto display = kwinApp()->outputBackend()->sceneEglDisplayObject();
 
     // Use eglGetPlatformDisplayEXT() to get the display pointer
     // if the implementation supports it.
-    if (dpy == EGL_NO_DISPLAY) {
+    if (!display) {
         const bool havePlatformBase = hasClientExtension(QByteArrayLiteral("EGL_EXT_platform_base"));
         if (havePlatformBase) {
             // Make sure that the X11 platform is supported
@@ -290,17 +290,17 @@ bool X11WindowedEglBackend::initializeEgl()
                 return false;
             }
 
-            dpy = eglGetPlatformDisplayEXT(EGL_PLATFORM_X11_EXT, m_backend->display(), nullptr);
+            m_backend->setEglDisplay(EglDisplay::create(eglGetPlatformDisplayEXT(EGL_PLATFORM_X11_EXT, m_backend->display(), nullptr)));
         } else {
-            dpy = eglGetDisplay(m_backend->display());
+            m_backend->setEglDisplay(EglDisplay::create(eglGetDisplay(m_backend->display())));
+        }
+        display = m_backend->sceneEglDisplayObject();
+        if (!display) {
+            return false;
         }
     }
-
+    setEglDisplay(display);
-    if (dpy == EGL_NO_DISPLAY) {
+    return true;
-        return false;
-    }
-    setEglDisplay(dpy);
-    return initEglAPI();
 }
 
 bool X11WindowedEglBackend::initRenderingContext()
@@ -328,7 +328,6 @@ void X11WindowedEglBackend::init()
     }
 
     initKWinGL();
-    initBufferAge();
     initWayland();
 
     const auto &outputs = m_backend->outputs();

src/core/outputbackend.cpp

@@ -13,6 +13,7 @@
 #include "inputbackend.h"
 #include "output.h"
 #include "outputconfiguration.h"
+#include "platformsupport/scenes/opengl/egldisplay.h"
 #include "platformsupport/scenes/opengl/openglbackend.h"
 #include "platformsupport/scenes/qpainter/qpainterbackend.h"
 
@@ -21,7 +22,6 @@ namespace KWin
 
 OutputBackend::OutputBackend(QObject *parent)
     : QObject(parent)
-    , m_eglDisplay(EGL_NO_DISPLAY)
 {
 }
 
@@ -103,14 +103,13 @@ void OutputBackend::removeVirtualOutput(Output *output)
     Q_ASSERT(!output);
 }
 
-EGLDisplay KWin::OutputBackend::sceneEglDisplay() const
+::EGLDisplay KWin::OutputBackend::sceneEglDisplay() const
 {
-    return m_eglDisplay;
+    if (auto display = sceneEglDisplayObject()) {
-}
+        return display->handle();
-
+    } else {
-void OutputBackend::setSceneEglDisplay(EGLDisplay display)
+        return EGL_NO_DISPLAY;
-{
+    }
-    m_eglDisplay = display;
 }
 
 QString OutputBackend::supportInformation() const

src/core/outputbackend.h

@@ -28,6 +28,7 @@ class OpenGLBackend;
 class QPainterBackend;
 class OutputConfiguration;
 struct DmaBufParams;
+class EglDisplay;
 
 class KWIN_EXPORT Outputs : public QVector<Output *>
 {
@@ -58,8 +59,8 @@ public:
     /**
      * The EGLDisplay used by the compositing scene.
      */
-    EGLDisplay sceneEglDisplay() const;
+    ::EGLDisplay sceneEglDisplay() const;
-    void setSceneEglDisplay(EGLDisplay display);
+    virtual EglDisplay *sceneEglDisplayObject() const = 0;
     /**
      * Returns the compositor-wide shared EGL context. This function may return EGL_NO_CONTEXT
      * if the underlying rendering backend does not use EGL.
@@ -119,8 +120,6 @@ Q_SIGNALS:
 protected:
     explicit OutputBackend(QObject *parent = nullptr);
 
-private:
-    EGLDisplay m_eglDisplay;
     EGLContext m_globalShareContext = EGL_NO_CONTEXT;
 };
 

src/libkwineffects/kwineglimagetexture.cpp

@@ -15,7 +15,7 @@
 namespace KWin
 {
 
-EGLImageTexture::EGLImageTexture(EGLDisplay display, EGLImage image, int internalFormat, const QSize &size)
+EGLImageTexture::EGLImageTexture(::EGLDisplay display, EGLImage image, int internalFormat, const QSize &size)
     : GLTexture(internalFormat, size, 1, true)
     , m_image(image)
     , m_display(display)

src/libkwineffects/kwineglimagetexture.h

@@ -22,12 +22,12 @@ namespace KWin
 class KWINGLUTILS_EXPORT EGLImageTexture : public GLTexture
 {
 public:
-    EGLImageTexture(EGLDisplay display, EGLImageKHR image, int internalFormat, const QSize &size);
+    EGLImageTexture(::EGLDisplay display, EGLImageKHR image, int internalFormat, const QSize &size);
     ~EGLImageTexture() override;
 
 private:
     EGLImageKHR m_image;
-    EGLDisplay m_display;
+    ::EGLDisplay m_display;
 };
 
 }

src/platformsupport/scenes/opengl/CMakeLists.txt

@@ -2,6 +2,7 @@ target_sources(kwin PRIVATE
     abstract_egl_backend.cpp
     basiceglsurfacetexture_internal.cpp
     basiceglsurfacetexture_wayland.cpp
+    egldisplay.cpp
     openglbackend.cpp
     openglsurfacetexture.cpp
     openglsurfacetexture_internal.cpp

src/platformsupport/scenes/opengl/abstract_egl_backend.cpp

@@ -67,7 +67,7 @@ EGLContext AbstractEglBackend::ensureGlobalShareContext()
 
 void AbstractEglBackend::destroyGlobalShareContext()
 {
-    const EGLDisplay eglDisplay = kwinApp()->outputBackend()->sceneEglDisplay();
+    const ::EGLDisplay eglDisplay = kwinApp()->outputBackend()->sceneEglDisplay();
     if (eglDisplay == EGL_NO_DISPLAY || s_globalShareContext == EGL_NO_CONTEXT) {
         return;
     }
@@ -78,8 +78,8 @@ void AbstractEglBackend::destroyGlobalShareContext()
 
 void AbstractEglBackend::teardown()
 {
-    if (m_functions.eglUnbindWaylandDisplayWL && m_display != EGL_NO_DISPLAY) {
+    if (m_functions.eglUnbindWaylandDisplayWL && m_display) {
-        m_functions.eglUnbindWaylandDisplayWL(m_display, *(WaylandServer::self()->display()));
+        m_functions.eglUnbindWaylandDisplayWL(m_display->handle(), *(WaylandServer::self()->display()));
     }
     destroyGlobalShareContext();
 }
@@ -93,56 +93,22 @@ void AbstractEglBackend::cleanup()
     cleanupSurfaces();
     cleanupGL();
     doneCurrent();
-    eglDestroyContext(m_display, m_context);
+    eglDestroyContext(m_display->handle(), m_context);
-    eglReleaseThread();
 }
 
 void AbstractEglBackend::cleanupSurfaces()
 {
     if (m_surface != EGL_NO_SURFACE) {
-        eglDestroySurface(m_display, m_surface);
+        eglDestroySurface(m_display->handle(), m_surface);
     }
 }
 
-bool AbstractEglBackend::initEglAPI()
+void AbstractEglBackend::setEglDisplay(EglDisplay *display)
 {
-    EGLint major, minor;
+    m_display = display;
-    if (eglInitialize(m_display, &major, &minor) == EGL_FALSE) {
+    setExtensions(m_display->extensions());
-        qCWarning(KWIN_OPENGL) << "eglInitialize failed";
+    setSupportsNativeFence(m_display->supportsNativeFence());
-        EGLint error = eglGetError();
+    setSupportsBufferAge(m_display->supportsBufferAge());
-        if (error != EGL_SUCCESS) {
-            qCWarning(KWIN_OPENGL) << "Error during eglInitialize " << error;
-        }
-        return false;
-    }
-    EGLint error = eglGetError();
-    if (error != EGL_SUCCESS) {
-        qCWarning(KWIN_OPENGL) << "Error during eglInitialize " << error;
-        return false;
-    }
-    qCDebug(KWIN_OPENGL) << "Egl Initialize succeeded";
-
-    if (eglBindAPI(isOpenGLES() ? EGL_OPENGL_ES_API : EGL_OPENGL_API) == EGL_FALSE) {
-        qCCritical(KWIN_OPENGL) << "bind OpenGL API failed";
-        return false;
-    }
-    qCDebug(KWIN_OPENGL) << "EGL version: " << major << "." << minor;
-    const QByteArray eglExtensions = eglQueryString(m_display, EGL_EXTENSIONS);
-    setExtensions(eglExtensions.split(' '));
-
-    const QByteArray requiredExtensions[] = {
-        QByteArrayLiteral("EGL_KHR_no_config_context"),
-        QByteArrayLiteral("EGL_KHR_surfaceless_context"),
-    };
-    for (const QByteArray &extensionName : requiredExtensions) {
-        if (!hasExtension(extensionName)) {
-            qCWarning(KWIN_OPENGL) << extensionName << "extension is unsupported";
-            return false;
-        }
-    }
-
-    setSupportsNativeFence(hasExtension(QByteArrayLiteral("EGL_ANDROID_native_fence_sync")));
-    return true;
 }
 
 typedef void (*eglFuncPtr)();
@@ -163,19 +129,6 @@ void AbstractEglBackend::initKWinGL()
     initGL(&getProcAddress);
 }
 
-void AbstractEglBackend::initBufferAge()
-{
-    setSupportsBufferAge(false);
-
-    if (hasExtension(QByteArrayLiteral("EGL_EXT_buffer_age"))) {
-        const QByteArray useBufferAge = qgetenv("KWIN_USE_BUFFER_AGE");
-
-        if (useBufferAge != "0") {
-            setSupportsBufferAge(true);
-        }
-    }
-}
-
 static int bpcForFormat(uint32_t format)
 {
     switch (format) {
@@ -323,13 +276,13 @@ bool AbstractEglBackend::makeCurrent()
         // Workaround to tell Qt that no QOpenGLContext is current
         context->doneCurrent();
     }
-    const bool current = eglMakeCurrent(m_display, m_surface, m_surface, m_context);
+    const bool current = eglMakeCurrent(m_display->handle(), m_surface, m_surface, m_context);
     return current;
 }
 
 void AbstractEglBackend::doneCurrent()
 {
-    eglMakeCurrent(m_display, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
+    eglMakeCurrent(m_display->handle(), EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
 }
 
 bool AbstractEglBackend::isOpenGLES() const
@@ -440,7 +393,7 @@ EGLContext AbstractEglBackend::createContextInternal(EGLContext sharedContext)
     EGLContext ctx = EGL_NO_CONTEXT;
     for (auto it = candidates.begin(); it != candidates.end(); it++) {
         const auto attribs = (*it)->build();
-        ctx = eglCreateContext(m_display, config(), sharedContext, attribs.data());
+        ctx = eglCreateContext(m_display->handle(), config(), sharedContext, attribs.data());
         if (ctx != EGL_NO_CONTEXT) {
             qCDebug(KWIN_OPENGL) << "Created EGL context with attributes:" << (*it).get();
             break;
@@ -453,12 +406,6 @@ EGLContext AbstractEglBackend::createContextInternal(EGLContext sharedContext)
     return ctx;
 }
 
-void AbstractEglBackend::setEglDisplay(const EGLDisplay &display)
-{
-    m_display = display;
-    kwinApp()->outputBackend()->setSceneEglDisplay(display);
-}
-
 void AbstractEglBackend::setConfig(const EGLConfig &config)
 {
     m_config = config;
@@ -504,71 +451,14 @@ EGLImageKHR AbstractEglBackend::importBufferAsImage(KWaylandServer::LinuxDmaBufV
 
 EGLImageKHR AbstractEglBackend::importDmaBufAsImage(const DmaBufAttributes &dmabuf) const
 {
-    QVector<EGLint> attribs;
+    return m_display->importDmaBufAsImage(dmabuf);
-    attribs.reserve(6 + dmabuf.planeCount * 10 + 1);
-
-    attribs
-        << EGL_WIDTH << dmabuf.width
-        << EGL_HEIGHT << dmabuf.height
-        << EGL_LINUX_DRM_FOURCC_EXT << dmabuf.format
-        << EGL_IMAGE_PRESERVED_KHR << EGL_TRUE;
-
-    attribs
-        << EGL_DMA_BUF_PLANE0_FD_EXT << dmabuf.fd[0].get()
-        << EGL_DMA_BUF_PLANE0_OFFSET_EXT << dmabuf.offset[0]
-        << EGL_DMA_BUF_PLANE0_PITCH_EXT << dmabuf.pitch[0];
-    if (dmabuf.modifier != DRM_FORMAT_MOD_INVALID) {
-        attribs
-            << EGL_DMA_BUF_PLANE0_MODIFIER_LO_EXT << EGLint(dmabuf.modifier & 0xffffffff)
-            << EGL_DMA_BUF_PLANE0_MODIFIER_HI_EXT << EGLint(dmabuf.modifier >> 32);
-    }
-
-    if (dmabuf.planeCount > 1) {
-        attribs
-            << EGL_DMA_BUF_PLANE1_FD_EXT << dmabuf.fd[1].get()
-            << EGL_DMA_BUF_PLANE1_OFFSET_EXT << dmabuf.offset[1]
-            << EGL_DMA_BUF_PLANE1_PITCH_EXT << dmabuf.pitch[1];
-        if (dmabuf.modifier != DRM_FORMAT_MOD_INVALID) {
-            attribs
-                << EGL_DMA_BUF_PLANE1_MODIFIER_LO_EXT << EGLint(dmabuf.modifier & 0xffffffff)
-                << EGL_DMA_BUF_PLANE1_MODIFIER_HI_EXT << EGLint(dmabuf.modifier >> 32);
-        }
-    }
-
-    if (dmabuf.planeCount > 2) {
-        attribs
-            << EGL_DMA_BUF_PLANE2_FD_EXT << dmabuf.fd[2].get()
-            << EGL_DMA_BUF_PLANE2_OFFSET_EXT << dmabuf.offset[2]
-            << EGL_DMA_BUF_PLANE2_PITCH_EXT << dmabuf.pitch[2];
-        if (dmabuf.modifier != DRM_FORMAT_MOD_INVALID) {
-            attribs
-                << EGL_DMA_BUF_PLANE2_MODIFIER_LO_EXT << EGLint(dmabuf.modifier & 0xffffffff)
-                << EGL_DMA_BUF_PLANE2_MODIFIER_HI_EXT << EGLint(dmabuf.modifier >> 32);
-        }
-    }
-
-    if (dmabuf.planeCount > 3) {
-        attribs
-            << EGL_DMA_BUF_PLANE3_FD_EXT << dmabuf.fd[3].get()
-            << EGL_DMA_BUF_PLANE3_OFFSET_EXT << dmabuf.offset[3]
-            << EGL_DMA_BUF_PLANE3_PITCH_EXT << dmabuf.pitch[3];
-        if (dmabuf.modifier != DRM_FORMAT_MOD_INVALID) {
-            attribs
-                << EGL_DMA_BUF_PLANE3_MODIFIER_LO_EXT << EGLint(dmabuf.modifier & 0xffffffff)
-                << EGL_DMA_BUF_PLANE3_MODIFIER_HI_EXT << EGLint(dmabuf.modifier >> 32);
-        }
-    }
-
-    attribs << EGL_NONE;
-
-    return eglCreateImageKHR(m_display, EGL_NO_CONTEXT, EGL_LINUX_DMA_BUF_EXT, nullptr, attribs.data());
 }
 
 std::shared_ptr<GLTexture> AbstractEglBackend::importDmaBufAsTexture(const DmaBufAttributes &attributes) const
 {
     EGLImageKHR image = importDmaBufAsImage(attributes);
     if (image != EGL_NO_IMAGE_KHR) {
-        return std::make_shared<EGLImageTexture>(eglDisplay(), image, GL_RGBA8, QSize(attributes.width, attributes.height));
+        return std::make_shared<EGLImageTexture>(m_display->handle(), image, GL_RGBA8, QSize(attributes.width, attributes.height));
     } else {
         qCWarning(KWIN_OPENGL) << "Failed to record frame: Error creating EGLImageKHR - " << getEglErrorString();
         return nullptr;
@@ -619,4 +509,14 @@ bool AbstractEglBackend::initBufferConfigs()
 
     return true;
 }
+
+::EGLDisplay AbstractEglBackend::eglDisplay() const
+{
+    return m_display->handle();
+}
+
+EglDisplay *AbstractEglBackend::eglDisplayObject() const
+{
+    return m_display;
+}
 }

src/platformsupport/scenes/opengl/abstract_egl_backend.h

@@ -7,6 +7,7 @@
     SPDX-License-Identifier: GPL-2.0-or-later
 */
 #pragma once
+#include "platformsupport/scenes/opengl/egldisplay.h"
 #include "platformsupport/scenes/opengl/openglbackend.h"
 #include "wayland/linuxdmabufv1clientbuffer.h"
 
@@ -19,9 +20,9 @@ struct wl_resource;
 namespace KWin
 {
 
-typedef GLboolean (*eglBindWaylandDisplayWL_func)(EGLDisplay dpy, wl_display *display);
+typedef GLboolean (*eglBindWaylandDisplayWL_func)(::EGLDisplay dpy, wl_display *display);
-typedef GLboolean (*eglUnbindWaylandDisplayWL_func)(EGLDisplay dpy, wl_display *display);
+typedef GLboolean (*eglUnbindWaylandDisplayWL_func)(::EGLDisplay dpy, wl_display *display);
-typedef GLboolean (*eglQueryWaylandBufferWL_func)(EGLDisplay dpy, struct wl_resource *buffer, EGLint attribute, EGLint *value);
+typedef GLboolean (*eglQueryWaylandBufferWL_func)(::EGLDisplay dpy, struct wl_resource *buffer, EGLint attribute, EGLint *value);
 
 struct AbstractEglBackendFunctions
 {
@@ -45,10 +46,7 @@ public:
     {
         return &m_functions;
     }
-    EGLDisplay eglDisplay() const
+    ::EGLDisplay eglDisplay() const;
-    {
-        return m_display;
-    }
     EGLContext context() const
     {
         return m_context;
@@ -61,6 +59,7 @@ public:
     {
         return m_config;
     }
+    EglDisplay *eglDisplayObject() const;
 
     bool testImportBuffer(KWaylandServer::LinuxDmaBufV1ClientBuffer *buffer) override;
     QHash<uint32_t, QVector<uint64_t>> supportedFormats() const override;
@@ -75,14 +74,12 @@ public:
 
 protected:
     AbstractEglBackend(dev_t deviceId = 0);
-    void setEglDisplay(const EGLDisplay &display);
     void setSurface(const EGLSurface &surface);
     void setConfig(const EGLConfig &config);
     void cleanup();
     virtual void cleanupSurfaces();
-    bool initEglAPI();
+    void setEglDisplay(EglDisplay *display);
     void initKWinGL();
-    void initBufferAge();
     void initClientExtensions();
     void initWayland();
     bool hasClientExtension(const QByteArray &ext) const;
@@ -98,7 +95,7 @@ private:
     void teardown();
 
     AbstractEglBackendFunctions m_functions;
-    EGLDisplay m_display = EGL_NO_DISPLAY;
+    EglDisplay *m_display = nullptr;
     EGLSurface m_surface = EGL_NO_SURFACE;
     EGLContext m_context = EGL_NO_CONTEXT;
     EGLConfig m_config = nullptr;

src/platformsupport/scenes/opengl/egldisplay.cpp

@@ -0,0 +1,170 @@
+/*
+    KWin - the KDE window manager
+    This file is part of the KDE project.
+
+    SPDX-FileCopyrightText: 2023 Xaver Hugl <xaver.hugl@gmail.com>
+
+    SPDX-License-Identifier: GPL-2.0-or-later
+*/
+#include "egldisplay.h"
+#include "core/dmabufattributes.h"
+#include "kwineglimagetexture.h"
+#include "kwineglutils_p.h"
+#include "libkwineffects/kwinglutils.h"
+#include "utils/common.h"
+
+#include <QOpenGLContext>
+#include <drm_fourcc.h>
+
+namespace KWin
+{
+
+static bool isOpenGLES()
+{
+    if (qstrcmp(qgetenv("KWIN_COMPOSE"), "O2ES") == 0) {
+        return true;
+    }
+    return QOpenGLContext::openGLModuleType() == QOpenGLContext::LibGLES;
+}
+
+std::unique_ptr<EglDisplay> EglDisplay::create(::EGLDisplay display, bool owning)
+{
+    if (!display) {
+        return nullptr;
+    }
+    EGLint major, minor;
+    if (eglInitialize(display, &major, &minor) == EGL_FALSE) {
+        qCWarning(KWIN_OPENGL) << "eglInitialize failed";
+        EGLint error = eglGetError();
+        if (error != EGL_SUCCESS) {
+            qCWarning(KWIN_OPENGL) << "Error during eglInitialize " << error;
+        }
+        return nullptr;
+    }
+    EGLint error = eglGetError();
+    if (error != EGL_SUCCESS) {
+        qCWarning(KWIN_OPENGL) << "Error during eglInitialize " << error;
+        return nullptr;
+    }
+    qCDebug(KWIN_OPENGL) << "Egl Initialize succeeded";
+    if (eglBindAPI(isOpenGLES() ? EGL_OPENGL_ES_API : EGL_OPENGL_API) == EGL_FALSE) {
+        qCCritical(KWIN_OPENGL) << "bind OpenGL API failed";
+        return nullptr;
+    }
+    qCDebug(KWIN_OPENGL) << "EGL version: " << major << "." << minor;
+
+    const auto extensions = QByteArray(eglQueryString(display, EGL_EXTENSIONS)).split(' ');
+
+    const QByteArray requiredExtensions[] = {
+        QByteArrayLiteral("EGL_KHR_no_config_context"),
+        QByteArrayLiteral("EGL_KHR_surfaceless_context"),
+    };
+    for (const QByteArray &extensionName : requiredExtensions) {
+        if (!extensions.contains(extensionName)) {
+            qCWarning(KWIN_OPENGL) << extensionName << "extension is unsupported";
+            return nullptr;
+        }
+    }
+
+    return std::make_unique<EglDisplay>(display, extensions, owning);
+}
+
+EglDisplay::EglDisplay(::EGLDisplay display, const QList<QByteArray> &extensions, bool owning)
+    : m_handle(display)
+    , m_extensions(extensions)
+    , m_owning(owning)
+    , m_supportsBufferAge(extensions.contains(QByteArrayLiteral("EGL_EXT_buffer_age")) && qgetenv("KWIN_USE_BUFFER_AGE") != "0")
+    , m_supportsSwapBuffersWithDamage(extensions.contains(QByteArrayLiteral("EGL_EXT_swap_buffers_with_damage")))
+    , m_supportsNativeFence(extensions.contains(QByteArrayLiteral("EGL_ANDROID_native_fence_sync")))
+{
+}
+
+EglDisplay::~EglDisplay()
+{
+    if (m_owning) {
+        eglTerminate(m_handle);
+    }
+}
+
+QList<QByteArray> EglDisplay::extensions() const
+{
+    return m_extensions;
+}
+
+::EGLDisplay EglDisplay::handle() const
+{
+    return m_handle;
+}
+
+bool EglDisplay::hasExtension(const QByteArray &name) const
+{
+    return m_extensions.contains(name);
+}
+
+bool EglDisplay::supportsBufferAge() const
+{
+    return m_supportsBufferAge;
+}
+
+bool EglDisplay::supportsSwapBuffersWithDamage() const
+{
+    return m_supportsSwapBuffersWithDamage;
+}
+
+bool EglDisplay::supportsNativeFence() const
+{
+    return m_supportsNativeFence;
+}
+
+EGLImageKHR EglDisplay::importDmaBufAsImage(const DmaBufAttributes &dmabuf) const
+{
+    QVector<EGLint> attribs;
+    attribs.reserve(6 + dmabuf.planeCount * 10 + 1);
+
+    attribs << EGL_WIDTH << dmabuf.width
+            << EGL_HEIGHT << dmabuf.height
+            << EGL_LINUX_DRM_FOURCC_EXT << dmabuf.format;
+
+    attribs << EGL_DMA_BUF_PLANE0_FD_EXT << dmabuf.fd[0].get()
+            << EGL_DMA_BUF_PLANE0_OFFSET_EXT << dmabuf.offset[0]
+            << EGL_DMA_BUF_PLANE0_PITCH_EXT << dmabuf.pitch[0];
+    if (dmabuf.modifier != DRM_FORMAT_MOD_INVALID) {
+        attribs << EGL_DMA_BUF_PLANE0_MODIFIER_LO_EXT << EGLint(dmabuf.modifier & 0xffffffff)
+                << EGL_DMA_BUF_PLANE0_MODIFIER_HI_EXT << EGLint(dmabuf.modifier >> 32);
+    }
+
+    if (dmabuf.planeCount > 1) {
+        attribs << EGL_DMA_BUF_PLANE1_FD_EXT << dmabuf.fd[1].get()
+                << EGL_DMA_BUF_PLANE1_OFFSET_EXT << dmabuf.offset[1]
+                << EGL_DMA_BUF_PLANE1_PITCH_EXT << dmabuf.pitch[1];
+        if (dmabuf.modifier != DRM_FORMAT_MOD_INVALID) {
+            attribs << EGL_DMA_BUF_PLANE1_MODIFIER_LO_EXT << EGLint(dmabuf.modifier & 0xffffffff)
+                    << EGL_DMA_BUF_PLANE1_MODIFIER_HI_EXT << EGLint(dmabuf.modifier >> 32);
+        }
+    }
+
+    if (dmabuf.planeCount > 2) {
+        attribs << EGL_DMA_BUF_PLANE2_FD_EXT << dmabuf.fd[2].get()
+                << EGL_DMA_BUF_PLANE2_OFFSET_EXT << dmabuf.offset[2]
+                << EGL_DMA_BUF_PLANE2_PITCH_EXT << dmabuf.pitch[2];
+        if (dmabuf.modifier != DRM_FORMAT_MOD_INVALID) {
+            attribs << EGL_DMA_BUF_PLANE2_MODIFIER_LO_EXT << EGLint(dmabuf.modifier & 0xffffffff)
+                    << EGL_DMA_BUF_PLANE2_MODIFIER_HI_EXT << EGLint(dmabuf.modifier >> 32);
+        }
+    }
+
+    if (dmabuf.planeCount > 3) {
+        attribs << EGL_DMA_BUF_PLANE3_FD_EXT << dmabuf.fd[3].get()
+                << EGL_DMA_BUF_PLANE3_OFFSET_EXT << dmabuf.offset[3]
+                << EGL_DMA_BUF_PLANE3_PITCH_EXT << dmabuf.pitch[3];
+        if (dmabuf.modifier != DRM_FORMAT_MOD_INVALID) {
+            attribs << EGL_DMA_BUF_PLANE3_MODIFIER_LO_EXT << EGLint(dmabuf.modifier & 0xffffffff)
+                    << EGL_DMA_BUF_PLANE3_MODIFIER_HI_EXT << EGLint(dmabuf.modifier >> 32);
+        }
+    }
+
+    attribs << EGL_NONE;
+
+    return eglCreateImageKHR(m_handle, EGL_NO_CONTEXT, EGL_LINUX_DMA_BUF_EXT, nullptr, attribs.data());
+}
+}

src/platformsupport/scenes/opengl/egldisplay.h

@@ -0,0 +1,51 @@
+/*
+    KWin - the KDE window manager
+    This file is part of the KDE project.
+
+    SPDX-FileCopyrightText: 2023 Xaver Hugl <xaver.hugl@gmail.com>
+
+    SPDX-License-Identifier: GPL-2.0-or-later
+*/
+#pragma once
+
+#include "kwin_export.h"
+
+#include <QByteArray>
+#include <QList>
+#include <epoxy/egl.h>
+
+namespace KWin
+{
+
+struct DmaBufAttributes;
+class GLTexture;
+
+class KWIN_EXPORT EglDisplay
+{
+public:
+    EglDisplay(::EGLDisplay display, const QList<QByteArray> &extensions, bool owning = true);
+    ~EglDisplay();
+
+    QList<QByteArray> extensions() const;
+    ::EGLDisplay handle() const;
+    bool hasExtension(const QByteArray &name) const;
+
+    bool supportsBufferAge() const;
+    bool supportsSwapBuffersWithDamage() const;
+    bool supportsNativeFence() const;
+
+    EGLImageKHR importDmaBufAsImage(const DmaBufAttributes &dmabuf) const;
+
+    static std::unique_ptr<EglDisplay> create(::EGLDisplay display, bool owning = true);
+
+private:
+    const ::EGLDisplay m_handle;
+    const QList<QByteArray> m_extensions;
+    const bool m_owning;
+
+    const bool m_supportsBufferAge;
+    const bool m_supportsSwapBuffersWithDamage;
+    const bool m_supportsNativeFence;
+};
+
+}

src/plugins/qpa/eglhelpers.cpp

@@ -28,7 +28,7 @@ bool isOpenGLES()
     return QOpenGLContext::openGLModuleType() == QOpenGLContext::LibGLES;
 }
 
-EGLConfig configFromFormat(EGLDisplay display, const QSurfaceFormat &surfaceFormat, EGLint surfaceType)
+EGLConfig configFromFormat(::EGLDisplay display, const QSurfaceFormat &surfaceFormat, EGLint surfaceType)
 {
     // std::max as these values are initialized to -1 by default.
     const EGLint redSize = std::max(surfaceFormat.redBufferSize(), 0);
@@ -88,7 +88,7 @@ EGLConfig configFromFormat(EGLDisplay display, const QSurfaceFormat &surfaceForm
     return configs[0];
 }
 
-QSurfaceFormat formatFromConfig(EGLDisplay display, EGLConfig config)
+QSurfaceFormat formatFromConfig(::EGLDisplay display, EGLConfig config)
 {
     int redSize = 0;
     int blueSize = 0;

src/plugins/qpa/eglhelpers.h

@@ -20,8 +20,8 @@ namespace QPA
 
 bool isOpenGLES();
 
-EGLConfig configFromFormat(EGLDisplay display, const QSurfaceFormat &surfaceFormat, EGLint surfaceType = 0);
+EGLConfig configFromFormat(::EGLDisplay display, const QSurfaceFormat &surfaceFormat, EGLint surfaceType = 0);
-QSurfaceFormat formatFromConfig(EGLDisplay display, EGLConfig config);
+QSurfaceFormat formatFromConfig(::EGLDisplay display, EGLConfig config);
 
 } // namespace QPA
 } // namespace KWin

src/plugins/qpa/eglplatformcontext.cpp

@@ -30,7 +30,7 @@ namespace KWin
 namespace QPA
 {
 
-EGLPlatformContext::EGLPlatformContext(QOpenGLContext *context, EGLDisplay display)
+EGLPlatformContext::EGLPlatformContext(QOpenGLContext *context, ::EGLDisplay display)
     : m_eglDisplay(display)
 {
     create(context->format(), kwinApp()->outputBackend()->sceneEglGlobalShareContext());
@@ -43,7 +43,7 @@ EGLPlatformContext::~EGLPlatformContext()
     }
 }
 
-EGLDisplay EGLPlatformContext::eglDisplay() const
+::EGLDisplay EGLPlatformContext::eglDisplay() const
 {
     return m_eglDisplay;
 }

src/plugins/qpa/eglplatformcontext.h

@@ -22,7 +22,7 @@ namespace QPA
 class EGLPlatformContext : public QPlatformOpenGLContext
 {
 public:
-    EGLPlatformContext(QOpenGLContext *context, EGLDisplay display);
+    EGLPlatformContext(QOpenGLContext *context, ::EGLDisplay display);
     ~EGLPlatformContext() override;
 
     bool makeCurrent(QPlatformSurface *surface) override;
@@ -34,14 +34,14 @@ public:
     QFunctionPointer getProcAddress(const char *procName) override;
     void swapBuffers(QPlatformSurface *surface) override;
 
-    EGLDisplay eglDisplay() const;
+    ::EGLDisplay eglDisplay() const;
     EGLContext eglContext() const;
 
 private:
     void create(const QSurfaceFormat &format, EGLContext shareContext);
     void updateFormatFromContext();
 
-    EGLDisplay m_eglDisplay;
+    ::EGLDisplay m_eglDisplay;
     EGLConfig m_config = EGL_NO_CONFIG_KHR;
     EGLContext m_context = EGL_NO_CONTEXT;
     QSurfaceFormat m_format;

src/plugins/qpa/integration.cpp

@@ -146,7 +146,7 @@ QPlatformOpenGLContext *Integration::createPlatformOpenGLContext(QOpenGLContext
         qCWarning(KWIN_QPA) << "Attempting to create a QOpenGLContext before the scene is initialized";
         return nullptr;
     }
-    const EGLDisplay eglDisplay = kwinApp()->outputBackend()->sceneEglDisplay();
+    const ::EGLDisplay eglDisplay = kwinApp()->outputBackend()->sceneEglDisplay();
     if (eglDisplay != EGL_NO_DISPLAY) {
         EGLPlatformContext *platformContext = new EGLPlatformContext(context, eglDisplay);
         return platformContext;

src/plugins/qpa/offscreensurface.h

@@ -32,7 +32,7 @@ public:
 private:
     QSurfaceFormat m_format;
 
-    EGLDisplay m_eglDisplay = EGL_NO_DISPLAY;
+    ::EGLDisplay m_eglDisplay = EGL_NO_DISPLAY;
     EGLSurface m_surface = EGL_NO_SURFACE;
 };
 

src/plugins/qpa/window.h

@@ -52,7 +52,7 @@ private:
     QSurfaceFormat m_format;
     QPointer<InternalWindow> m_handle;
     std::shared_ptr<QOpenGLFramebufferObject> m_contentFBO;
-    EGLDisplay m_eglDisplay = EGL_NO_DISPLAY;
+    ::EGLDisplay m_eglDisplay = EGL_NO_DISPLAY;
     quint32 m_windowId;
     bool m_resized = false;
     qreal m_scale = 1;

src/plugins/screencast/eglnativefence.cpp

@@ -16,7 +16,7 @@ namespace KWin
 #define EGL_NO_NATIVE_FENCE_FD_ANDROID -1
 #endif // EGL_ANDROID_native_fence_sync
 
-EGLNativeFence::EGLNativeFence(EGLDisplay display)
+EGLNativeFence::EGLNativeFence(::EGLDisplay display)
     : m_display(display)
 {
     m_sync = eglCreateSyncKHR(m_display, EGL_SYNC_NATIVE_FENCE_ANDROID, nullptr);

src/plugins/screencast/eglnativefence.h

@@ -16,7 +16,7 @@ namespace KWin
 class EGLNativeFence
 {
 public:
-    explicit EGLNativeFence(EGLDisplay display);
+    explicit EGLNativeFence(::EGLDisplay display);
     ~EGLNativeFence();
 
     bool isValid() const;
@@ -24,7 +24,7 @@ public:
 
 private:
     EGLSyncKHR m_sync = EGL_NO_SYNC_KHR;
-    EGLDisplay m_display = EGL_NO_DISPLAY;
+    ::EGLDisplay m_display = EGL_NO_DISPLAY;
     int m_fileDescriptor = -1;
 
     Q_DISABLE_COPY(EGLNativeFence)

src/wayland/display.cpp

@@ -223,7 +223,7 @@ void Display::setEglDisplay(void *display)
         qCWarning(KWIN_CORE) << "EGLDisplay cannot be changed";
         return;
     }
-    d->eglDisplay = (EGLDisplay)display;
+    d->eglDisplay = (::EGLDisplay)display;
     new DrmClientBufferIntegration(this);
 }
 

src/wayland/display_p.h

@@ -51,7 +51,7 @@ public:
     QVector<SeatInterface *> seats;
     QVector<ClientConnection *> clients;
     QStringList socketNames;
-    EGLDisplay eglDisplay = EGL_NO_DISPLAY;
+    ::EGLDisplay eglDisplay = EGL_NO_DISPLAY;
     QHash<::wl_resource *, ClientBuffer *> resourceToBuffer;
     QHash<ClientBuffer *, ClientBufferDestroyListener *> bufferToListener;
     QList<ClientBufferIntegration *> bufferIntegrations;

src/wayland/drmclientbuffer.cpp

@@ -17,7 +17,7 @@
 
 namespace KWaylandServer
 {
-typedef EGLBoolean (*eglQueryWaylandBufferWL_func)(EGLDisplay dpy, struct wl_resource *buffer, EGLint attribute, EGLint *value);
+typedef EGLBoolean (*eglQueryWaylandBufferWL_func)(::EGLDisplay dpy, struct wl_resource *buffer, EGLint attribute, EGLint *value);
 static eglQueryWaylandBufferWL_func eglQueryWaylandBufferWL = nullptr;
 
 class DrmClientBufferPrivate : public ClientBufferPrivate
@@ -35,7 +35,7 @@ DrmClientBuffer::DrmClientBuffer(wl_resource *resource, DrmClientBufferIntegrati
 {
     Q_D(DrmClientBuffer);
 
-    EGLDisplay eglDisplay = integration->display()->eglDisplay();
+    ::EGLDisplay eglDisplay = integration->display()->eglDisplay();
     eglQueryWaylandBufferWL(eglDisplay, resource, EGL_TEXTURE_FORMAT, &d->textureFormat);
     eglQueryWaylandBufferWL(eglDisplay, resource, EGL_WIDTH, &d->width);
     eglQueryWaylandBufferWL(eglDisplay, resource, EGL_HEIGHT, &d->height);
@@ -77,7 +77,7 @@ DrmClientBufferIntegration::DrmClientBufferIntegration(Display *display)
 
 ClientBuffer *DrmClientBufferIntegration::createBuffer(::wl_resource *resource)
 {
-    EGLDisplay eglDisplay = display()->eglDisplay();
+    ::EGLDisplay eglDisplay = display()->eglDisplay();
     static bool resolved = false;
     if (!resolved && eglDisplay != EGL_NO_DISPLAY) {
         eglQueryWaylandBufferWL = (eglQueryWaylandBufferWL_func)eglGetProcAddress("eglQueryWaylandBufferWL");