1 files changed, 37 insertions, 0 deletions
diff --git a/src/plugins/platforms/xcb/qxcbintegration.cpp b/src/plugins/platforms/xcb/qxcbintegration.cpp
index 396d8837e9..da7ce9bb17 100644
--- a/src/plugins/platforms/xcb/qxcbintegration.cpp
+++ b/src/plugins/platforms/xcb/qxcbintegration.cpp
@@ -65,6 +65,11 @@
 
 #ifdef XCB_USE_XLIB
 #include <X11/Xlib.h>
+#if QT_CONFIG(xcb_native_painting)
+#include "qxcbnativepainting.h"
+#include "qpixmap_x11_p.h"
+#include "qbackingstore_x11_p.h"
+#endif
 #endif
 
 #include <qpa/qplatforminputcontextfactory_p.h>
@@ -192,6 +197,13 @@ QXcbIntegration::QXcbIntegration(const QStringList &parameters, int &argc, char
     }
 
     m_fontDatabase.reset(new QGenericUnixFontDatabase());
+
+#if QT_CONFIG(xcb_native_painting)
+    if (nativePaintingEnabled()) {
+        qDebug("QXCB USING NATIVE PAINTING");
+        qt_xcb_native_x11_info_init(defaultConnection());
+    }
+#endif
 }
 
 QXcbIntegration::~QXcbIntegration()
@@ -200,6 +212,16 @@ QXcbIntegration::~QXcbIntegration()
     m_instance = Q_NULLPTR;
 }
 
+QPlatformPixmap *QXcbIntegration::createPlatformPixmap(QPlatformPixmap::PixelType type) const
+{
+#if QT_CONFIG(xcb_native_painting)
+    if (nativePaintingEnabled())
+        return new QX11PlatformPixmap(type);
+#endif
+
+    return QPlatformIntegration::createPlatformPixmap(type);
+}
+
 QPlatformWindow *QXcbIntegration::createPlatformWindow(QWindow *window) const
 {
     QXcbScreen *screen = static_cast<QXcbScreen *>(window->screen()->handle());
@@ -263,6 +285,11 @@ QPlatformOpenGLContext *QXcbIntegration::createPlatformOpenGLContext(QOpenGLCont
 
 QPlatformBackingStore *QXcbIntegration::createPlatformBackingStore(QWindow *window) const
 {
+#if QT_CONFIG(xcb_native_painting)
+    if (nativePaintingEnabled())
+        return new QXcbNativeBackingStore(window);
+#endif
+
     return new QXcbBackingStore(window);
 }
 
@@ -511,6 +538,16 @@ void QXcbIntegration::beep() const
     xcb_bell(connection, 0);
 }
 
+bool QXcbIntegration::nativePaintingEnabled() const
+{
+#if QT_CONFIG(xcb_native_painting)
+    static bool enabled = qEnvironmentVariableIsSet("QT_XCB_NATIVE_PAINTING");
+    return enabled;
+#else
+    return false;
+#endif
+}
+
 #if QT_CONFIG(vulkan)
 QPlatformVulkanInstance *QXcbIntegration::createPlatformVulkanInstance(QVulkanInstance *instance) const
 {