Add the skeleton for a D3D12 backend

Proof of concept. The plan is to proceed slowly with supporting node types
one by one, starting with QSGRectangleNode.

Opaque rectangles work already, but only non-smooth for now. The renderer is
incomplete (no clip/opacity) and is based on simplerenderer on scenegraph playground.
Buffer handling is not necessarily optimal yet.

Use QT_QUICK_BACKEND=d3d12 to request this backend. Set QT_D3D_DEBUG=1 to
enable the D3D debug layer. The render loop handles everything, incl. swap
chain setup, handling resizes, etc. This being D3D, there are no further
enablers needed from the QtGui or platform plugin side.

By default the first hardware adapter is picked. In the absence of that,
WARP is tried. The list of adapters is printed at startup, use
QT_D3D_ADAPTER_INDEX to force a given card in case there are multiple
ones in the system.

The goal is not to productize a fast and great renderer, but to pave the way to
better future backends for D3D12 and similar graphics APIs.

Compiling in the support into Qt Quick is bad since the dependency onto
d3d12.dll is not necessarily acceptable, but it's good enough for now, this
being a wip branch.

Change-Id: Ifbe088e7507223328096b22eec2c73f77bb5680e
Reviewed-by: Andy Nichols <andy.nichols@theqtcompany.com>

4 files changed, 156 insertions, 0 deletions

diff --git a/tests/manual/nodetypes/main.qml b/tests/manual/nodetypes/main.qml
new file mode 100644
index 0000000000..c4d0a5266d
--- /dev/null
+++ b/tests/manual/nodetypes/main.qml
@@ -0,0 +1,87 @@
+/****************************************************************************
+**
+** Copyright (C) 2016 The Qt Company Ltd.
+** Contact: http://www.qt.io/licensing/
+**
+** This file is part of the demonstration applications of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** You may use this file under the terms of the BSD license as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+**   * Redistributions of source code must retain the above copyright
+**     notice, this list of conditions and the following disclaimer.
+**   * Redistributions in binary form must reproduce the above copyright
+**     notice, this list of conditions and the following disclaimer in
+**     the documentation and/or other materials provided with the
+**     distribution.
+**   * Neither the name of The Qt Company Ltd nor the names of its
+**     contributors may be used to endorse or promote products derived
+**     from this software without specific prior written permission.
+**
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+import QtQuick 2.0
+
+Item {
+    Rectangle {
+        width: 100
+        height: 100
+        anchors.centerIn: parent
+        color: "red"
+        NumberAnimation on rotation { from: 0; to: 360; duration: 2000; loops: Animation.Infinite; }
+    }
+
+    Rectangle {
+        color: "green"
+        width: 100
+        height: 200
+        x: 0
+        y: 0
+
+        NumberAnimation on x {
+            from: 0
+            to: 300
+            duration: 10000
+        }
+    }
+
+    Rectangle {
+        color: "blue"
+        width: 200
+        height: 100
+        x: 100
+        y: 300
+
+        SequentialAnimation on y {
+            loops: Animation.Infinite
+            NumberAnimation {
+                from: 300
+                to: 500
+                duration: 7000
+            }
+            NumberAnimation {
+                from: 500
+                to: 300
+                duration: 3000
+            }
+        }
+    }
+}
diff --git a/tests/manual/nodetypes/nodetypes.cpp b/tests/manual/nodetypes/nodetypes.cpp
new file mode 100644
index 0000000000..506a202ec7
--- /dev/null
+++ b/tests/manual/nodetypes/nodetypes.cpp
@@ -0,0 +1,57 @@
+/****************************************************************************
+**
+** Copyright (C) 2016 The Qt Company Ltd.
+** Contact: http://www.qt.io/licensing/
+**
+** This file is part of the demonstration applications of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** You may use this file under the terms of the BSD license as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+**   * Redistributions of source code must retain the above copyright
+**     notice, this list of conditions and the following disclaimer.
+**   * Redistributions in binary form must reproduce the above copyright
+**     notice, this list of conditions and the following disclaimer in
+**     the documentation and/or other materials provided with the
+**     distribution.
+**   * Neither the name of The Qt Company Ltd nor the names of its
+**     contributors may be used to endorse or promote products derived
+**     from this software without specific prior written permission.
+**
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QGuiApplication>
+#include <QQuickView>
+
+int main(int argc, char **argv)
+{
+    qputenv("QT_QUICK_BACKEND", "d3d12");
+
+    QGuiApplication app(argc, argv);
+
+    QQuickView view;
+    view.setResizeMode(QQuickView::SizeRootObjectToView);
+    view.resize(1024, 768);
+    view.setSource(QUrl("qrc:/main.qml"));
+    view.show();
+
+    return app.exec();
+}
diff --git a/tests/manual/nodetypes/nodetypes.pro b/tests/manual/nodetypes/nodetypes.pro
new file mode 100644
index 0000000000..c0b258d9ae
--- /dev/null
+++ b/tests/manual/nodetypes/nodetypes.pro
@@ -0,0 +1,7 @@
+QT += qml quick
+
+SOURCES += nodetypes.cpp
+
+RESOURCES += nodetypes.qrc
+
+OTHER_FILES += main.qml
diff --git a/tests/manual/nodetypes/nodetypes.qrc b/tests/manual/nodetypes/nodetypes.qrc
new file mode 100644
index 0000000000..5f6483ac33
--- /dev/null
+++ b/tests/manual/nodetypes/nodetypes.qrc
@@ -0,0 +1,5 @@
+<RCC>
+    <qresource prefix="/">
+        <file>main.qml</file>
+    </qresource>
+</RCC>