diff --git a/5.15.2/qtbase/src/plugins/platforms/cocoa/qiosurfacegraphicsbuffer.h b/5.15.2/qtbase/src/plugins/platforms/cocoa/qiosurfacegraphicsbuffer.h
new file mode 100644
index 0000000..cc7193d
--- /dev/null
+++ b/5.15.2/qtbase/src/plugins/platforms/cocoa/qiosurfacegraphicsbuffer.h
@@ -0,0 +1,82 @@
+/****************************************************************************
+**
+** Copyright (C) 2019 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the plugins of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 3 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL3 included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 3 requirements
+** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 2.0 or (at your option) the GNU General
+** Public license version 3 or any later version approved by the KDE Free
+** Qt Foundation. The licenses are as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-2.0.html and
+** https://www.gnu.org/licenses/gpl-3.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QIOSURFACEGRAPHICSBUFFER_H
+#define QIOSURFACEGRAPHICSBUFFER_H
+
+#include <qpa/qplatformgraphicsbuffer.h>
+#include <private/qcore_mac_p.h>
+
+#include <CoreGraphics/CGColorSpace.h>
+#include <IOSurface/IOSurface.h>
+
+QT_BEGIN_NAMESPACE
+
+class QIOSurfaceGraphicsBuffer : public QPlatformGraphicsBuffer
+{
+public:
+    QIOSurfaceGraphicsBuffer(const QSize &size, const QPixelFormat &format);
+    ~QIOSurfaceGraphicsBuffer();
+
+    void setColorSpace(QCFType<CGColorSpaceRef> colorSpace);
+
+    const uchar *data() const override;
+    uchar *data() override;
+    int bytesPerLine() const override;
+
+    IOSurfaceRef surface();
+    bool isInUse() const;
+
+protected:
+    bool doLock(AccessTypes access, const QRect &rect) override;
+    void doUnlock() override;
+
+private:
+    QCFType<IOSurfaceRef> m_surface;
+
+    friend QDebug operator<<(QDebug, const QIOSurfaceGraphicsBuffer *);
+};
+
+#ifndef QT_NO_DEBUG_STREAM
+QDebug operator<<(QDebug, const QIOSurfaceGraphicsBuffer *);
+#endif
+
+QT_END_NAMESPACE
+
+#endif // QIOSURFACEGRAPHICSBUFFER_H
diff --git a/WorkspaceSettings.xcsettings b/WorkspaceSettings.xcsettings
new file mode 100644
index 0000000..afcfa6a
--- /dev/null
+++ b/WorkspaceSettings.xcsettings
@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>BuildSystemType</key>
+	<string>Original</string>
+	<key>DisableBuildSystemDeprecationDiagnostic</key>
+	<true/>
+	<key>IDEWorkspaceSharedSettings_AutocreateContextsIfNeeded</key>
+	<false/>
+</dict>
+</plist>