windows: Remove workaround for delayed OpenGL initialization

We no longer use QSurface::RasterGLSurface for composition, so the window
will already be QSurface::OpenGLSurface during WindowCreationData::initialize.

Pick-to: 6.7 6.6 6.5
Change-Id: I9b5ea0245ddf4a19d165bde9ad6fd48a98bfca4f
Reviewed-by: Laszlo Agocs <laszlo.agocs@qt.io>
Reviewed-by: Oliver Wolff <oliver.wolff@qt.io>

1 files changed, 0 insertions, 22 deletions

diff --git a/src/plugins/platforms/windows/qwindowswindow.cpp b/src/plugins/platforms/windows/qwindowswindow.cpp
index 3b3f15610c..c2c093faf4 100644
--- a/src/plugins/platforms/windows/qwindowswindow.cpp
+++ b/src/plugins/platforms/windows/qwindowswindow.cpp
@@ -430,11 +430,7 @@ static inline bool windowIsAccelerated(const QWindow *w)
 {
     switch (w->surfaceType()) {
     case QSurface::OpenGLSurface:
-        return true;
-    case QSurface::RasterGLSurface:
-        return qt_window_private(const_cast<QWindow *>(w))->compositing;
     case QSurface::VulkanSurface:
-        return true;
     case QSurface::Direct3DSurface:
         return true;
     default:
@@ -3442,24 +3438,6 @@ void QWindowsWindow::registerTouchWindow()
         qErrnoWarning("RegisterTouchWindow() failed for window '%s'.", qPrintable(window()->objectName()));
 }
 
-void QWindowsWindow::aboutToMakeCurrent()
-{
-#ifndef QT_NO_OPENGL
-    // For RasterGLSurface windows, that become OpenGL windows dynamically, it might be
-    // time to set up some GL specifics.  This is particularly important for layered
-    // windows (WS_EX_LAYERED due to alpha > 0).
-    const bool isCompositing = qt_window_private(window())->compositing;
-    if (isCompositing != testFlag(Compositing)) {
-        if (isCompositing)
-            setFlag(Compositing);
-        else
-            clearFlag(Compositing);
-
-        updateGLWindowSettings(window(), m_data.hwnd, m_data.flags, m_opacity);
-    }
-#endif
-}
-
 void QWindowsWindow::setHasBorderInFullScreenStatic(QWindow *window, bool border)
 {
     if (QPlatformWindow *handle = window->handle())