Turn the SoftwareContext plugin into the Scenegraph Software Adaptation

The 2D renderer will now become a built-in adaptation of scenegraph that
should always be available to fallback to when there are no other
renders available.  So rather than be an external plugin, now it is a
built in adaptation.

Change-Id: Ifa02fd50f3085ad1e6f1a73c3ce1e1825b677cc7
Reviewed-by: Laszlo Agocs <laszlo.agocs@theqtcompany.com>

1 files changed, 129 insertions, 0 deletions

diff --git a/src/quick/scenegraph/adaptations/software/qsgsoftwarerenderablenode_p.h b/src/quick/scenegraph/adaptations/software/qsgsoftwarerenderablenode_p.h
new file mode 100644
index 0000000000..841953da24
--- /dev/null
+++ b/src/quick/scenegraph/adaptations/software/qsgsoftwarerenderablenode_p.h
@@ -0,0 +1,129 @@
+/****************************************************************************
+**
+** Copyright (C) 2016 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the QtQuick module 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 QSGSOFTWARERENDERABLENODE_H
+#define QSGSOFTWARERENDERABLENODE_H
+
+#include <QtGui/QRegion>
+#include <QtCore/QRect>
+#include <QtGui/QTransform>
+
+QT_BEGIN_NAMESPACE
+
+class QSGNode;
+class QSGSimpleRectNode;
+class QSGSimpleTextureNode;
+class QSGSoftwareImageNode;
+class QSGSoftwarePainterNode;
+class QSGSoftwareRectangleNode;
+class QSGSoftwareGlyphNode;
+class QSGSoftwareNinePatchNode;
+
+class QSGSoftwareRenderableNode
+{
+public:
+    enum NodeType {
+        Invalid = -1,
+        SimpleRect,
+        SimpleTexture,
+        Image,
+        Painter,
+        Rectangle,
+        Glyph,
+        NinePatch
+    };
+
+    QSGSoftwareRenderableNode(NodeType type, QSGNode *node);
+    ~QSGSoftwareRenderableNode();
+
+    void update();
+
+    QRegion renderNode(QPainter *painter, bool forceOpaquePainting = false);
+    QRect boundingRect() const;
+    NodeType type() const { return m_nodeType; }
+    bool isOpaque() const { return m_isOpaque; }
+    bool isDirty() const { return m_isDirty; }
+    bool isDirtyRegionEmpty() const;
+
+    void setTransform(const QTransform &transform);
+    void setClipRect(const QRectF &clipRect);
+    void setOpacity(float opacity);
+    QTransform transform() const { return m_transform; }
+    QRectF clipRect() const { return m_clipRect; }
+    float opacity() const { return m_opacity; }
+
+    void markGeometryDirty();
+    void markMaterialDirty();
+
+    void addDirtyRegion(const QRegion &dirtyRegion, bool forceDirty = true);
+    void subtractDirtyRegion(const QRegion &dirtyRegion);
+
+    QRegion previousDirtyRegion() const;
+    QRegion dirtyRegion() const;
+
+private:
+    union RenderableNodeHandle {
+        QSGSimpleRectNode *simpleRectNode;
+        QSGSimpleTextureNode *simpleTextureNode;
+        QSGSoftwareImageNode *imageNode;
+        QSGSoftwarePainterNode *painterNode;
+        QSGSoftwareRectangleNode *rectangleNode;
+        QSGSoftwareGlyphNode *glpyhNode;
+        QSGSoftwareNinePatchNode *ninePatchNode;
+    };
+
+    const NodeType m_nodeType;
+    RenderableNodeHandle m_handle;
+
+    bool m_isOpaque;
+
+    bool m_isDirty;
+    QRegion m_dirtyRegion;
+    QRegion m_previousDirtyRegion;
+
+    QTransform m_transform;
+    QRectF m_clipRect;
+    float m_opacity;
+
+    QRect m_boundingRect;
+};
+
+QT_END_NAMESPACE
+
+#endif // QSGSOFTWARERENDERABLENODE_H