Fix crash in eglTerminate()

At the moment, the gbm_device for the primary device is destroyed before
the EGLDisplay is destroyed. This results in a crash in Mesa.

In order to fix the crash, this change ensures that the EGLDisplay is
destroyed before the gbm device.

platform.cpp

@@ -42,9 +42,6 @@ Platform::Platform(QObject *parent)
 
 Platform::~Platform()
 {
-    if (m_eglDisplay != EGL_NO_DISPLAY) {
-        eglTerminate(m_eglDisplay);
-    }
 }
 
 PlatformCursorImage Platform::cursorImage() const

plugins/platforms/drm/drm_gpu.cpp

@@ -57,6 +57,9 @@ DrmGpu::DrmGpu(DrmBackend *backend, QByteArray devNode, int fd, int drmId) : m_b
 
 DrmGpu::~DrmGpu()
 {
+    if (m_eglDisplay != EGL_NO_DISPLAY) {
+        eglTerminate(m_eglDisplay);
+    }
 #if HAVE_GBM
     gbm_device_destroy(m_gbmDevice);
 #endif

plugins/platforms/hwcomposer/hwcomposer_backend.cpp

@@ -147,6 +147,9 @@ HwcomposerBackend::~HwcomposerBackend()
     if (!m_outputBlank) {
         toggleBlankOutput();
     }
+    if (sceneEglDisplay() != EGL_NO_DISPLAY) {
+        eglTerminate(sceneEglDisplay());
+    }
 }
 
 void HwcomposerBackend::init()

plugins/platforms/virtual/virtual_backend.cpp

@@ -42,6 +42,9 @@ VirtualBackend::VirtualBackend(QObject *parent)
 
 VirtualBackend::~VirtualBackend()
 {
+    if (sceneEglDisplay() != EGL_NO_DISPLAY) {
+        eglTerminate(sceneEglDisplay());
+    }
 }
 
 void VirtualBackend::init()

plugins/platforms/wayland/wayland_backend.cpp

@@ -462,6 +462,10 @@ WaylandBackend::WaylandBackend(QObject *parent)
 
 WaylandBackend::~WaylandBackend()
 {
+    if (sceneEglDisplay() != EGL_NO_DISPLAY) {
+        eglTerminate(sceneEglDisplay());
+    }
+
     if (m_pointerConstraints) {
         m_pointerConstraints->release();
     }

plugins/platforms/x11/standalone/x11_platform.cpp

@@ -73,6 +73,9 @@ X11StandalonePlatform::~X11StandalonePlatform()
         m_openGLFreezeProtectionThread->wait();
         delete m_openGLFreezeProtectionThread;
     }
+    if (sceneEglDisplay() != EGL_NO_DISPLAY) {
+        eglTerminate(sceneEglDisplay());
+    }
     if (isReady()) {
         XRenderUtils::cleanup();
     }

plugins/platforms/x11/windowed/x11windowed_backend.cpp

@@ -49,6 +49,9 @@ X11WindowedBackend::X11WindowedBackend(QObject *parent)
 
 X11WindowedBackend::~X11WindowedBackend()
 {
+    if (sceneEglDisplay() != EGL_NO_DISPLAY) {
+        eglTerminate(sceneEglDisplay());
+    }
     if (m_connection) {
         if (m_keySymbols) {
             xcb_key_symbols_free(m_keySymbols);