1 files changed, 133 insertions, 0 deletions
diff --git a/src/core/compositor/delegated_frame_node.h b/src/core/compositor/delegated_frame_node.h
new file mode 100644
index 000000000..34e4ba029
--- /dev/null
+++ b/src/core/compositor/delegated_frame_node.h
@@ -0,0 +1,133 @@
+/****************************************************************************
+**
+** Copyright (C) 2016 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the QtWebEngine 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 DELEGATED_FRAME_NODE_H
+#define DELEGATED_FRAME_NODE_H
+
+#include "base/containers/circular_deque.h"
+#include "components/viz/common/quads/compositor_frame.h"
+#include "components/viz/common/quads/render_pass.h"
+
+#include <QtCore/QSharedPointer>
+#include <QtGui/QOffscreenSurface>
+#include <QtQuick/QSGTransformNode>
+
+#include "chromium_gpu_helper.h"
+#include "render_widget_host_view_qt_delegate.h"
+
+QT_BEGIN_NAMESPACE
+class QSGLayer;
+QT_END_NAMESPACE
+
+namespace gfx {
+class QuadF;
+}
+
+namespace viz {
+class DelegatedFrameData;
+class DrawQuad;
+class DrawPolygon;
+}
+
+namespace QtWebEngineCore {
+
+class CompositorResource;
+class CompositorResourceTracker;
+class DelegatedNodeTreeHandler;
+class MailboxTexture;
+
+class DelegatedFrameNode : public QSGTransformNode {
+public:
+    DelegatedFrameNode();
+    ~DelegatedFrameNode();
+    void preprocess() override;
+    void commit(const viz::CompositorFrame &pendingFrame, const viz::CompositorFrame &committedFrame, const CompositorResourceTracker *resourceTracker, RenderWidgetHostViewQtDelegate *apiDelegate);
+
+private:
+    void flushPolygons(base::circular_deque<std::unique_ptr<viz::DrawPolygon> > *polygonQueue,
+        QSGNode *renderPassChain,
+        DelegatedNodeTreeHandler *nodeHandler,
+        const CompositorResourceTracker *resourceTracker,
+        RenderWidgetHostViewQtDelegate *apiDelegate);
+    void handlePolygon(
+        const viz::DrawPolygon *polygon,
+        QSGNode *currentLayerChain,
+        DelegatedNodeTreeHandler *nodeHandler,
+        const CompositorResourceTracker *resourceTracker,
+        RenderWidgetHostViewQtDelegate *apiDelegate);
+    void handleClippedQuad(
+        const viz::DrawQuad *quad,
+        const gfx::QuadF &clipRegion,
+        QSGNode *currentLayerChain,
+        DelegatedNodeTreeHandler *nodeHandler,
+        const CompositorResourceTracker *resourceTracker,
+        RenderWidgetHostViewQtDelegate *apiDelegate);
+    void handleQuad(
+        const viz::DrawQuad *quad,
+        QSGNode *currentLayerChain,
+        DelegatedNodeTreeHandler *nodeHandler,
+        const CompositorResourceTracker *resourceTracker,
+        RenderWidgetHostViewQtDelegate *apiDelegate);
+
+    const CompositorResource *findAndHoldResource(unsigned resourceId, const CompositorResourceTracker *resourceTracker);
+    void holdResources(const viz::DrawQuad *quad, const CompositorResourceTracker *resourceTracker);
+    void holdResources(const viz::RenderPass *pass, const CompositorResourceTracker *resourceTracker);
+    QSGTexture *initAndHoldTexture(const CompositorResource *resource, bool hasAlphaChannel, RenderWidgetHostViewQtDelegate *apiDelegate = 0, int target = -1);
+    QSharedPointer<QSGTexture> createBitmapTexture(const CompositorResource *resource, bool hasAlphaChannel, RenderWidgetHostViewQtDelegate *apiDelegate);
+    QSharedPointer<MailboxTexture> createMailboxTexture(const CompositorResource *resource, bool hasAlphaChannel, int target);
+
+    void copyMailboxTextures();
+
+    struct SGObjects {
+        QVector<QPair<int, QSharedPointer<QSGLayer> > > renderPassLayers;
+        QVector<QSharedPointer<QSGRootNode> > renderPassRootNodes;
+        QHash<unsigned, QSharedPointer<QSGTexture> > bitmapTextures;
+        QHash<unsigned, QSharedPointer<MailboxTexture> > mailboxTextures;
+    } m_sgObjects, m_previousSGObjects;
+    QVector<QSGNode*> m_sceneGraphNodes;
+#if defined(USE_OZONE)
+    bool m_contextShared;
+    QScopedPointer<QOffscreenSurface> m_offsurface;
+#endif
+    QSize m_previousViewportSize;
+};
+
+} // namespace QtWebEngineCore
+
+#endif // DELEGATED_FRAME_NODE_H