1 files changed, 241 insertions, 0 deletions
diff --git a/src/compositor/compositor_api/qwaylandquicksurface.cpp b/src/compositor/compositor_api/qwaylandquicksurface.cpp
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+++ b/src/compositor/compositor_api/qwaylandquicksurface.cpp
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+/****************************************************************************
+**
+** Copyright (C) 2014 Jolla Ltd, author: <giulio.camuffo@jollamobile.com>
+** Contact: http://www.qt-project.org/legal
+**
+** 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 Digia.  For licensing terms and
+** conditions see http://qt.digia.com/licensing.  For further information
+** use the contact form at http://qt.digia.com/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 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Digia gives you certain additional
+** rights.  These rights are described in the Digia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QSGTexture>
+#include <QOpenGLTexture>
+#include <QQuickWindow>
+#include <QDebug>
+#include <QQmlPropertyMap>
+
+#include "qwaylandquicksurface.h"
+#include "qwaylandquickcompositor.h"
+#include "qwaylandsurfaceitem.h"
+#include <QtCompositor/qwaylandbufferref.h>
+#include <QtCompositor/private/qwaylandsurface_p.h>
+
+QT_BEGIN_NAMESPACE
+
+class BufferAttacher : public QWaylandBufferAttacher
+{
+public:
+    BufferAttacher()
+        : surface(0)
+        , texture(0)
+        , update(false)
+    {
+
+    }
+
+    ~BufferAttacher()
+    {
+        if (texture)
+            texture->deleteLater();
+        bufferRef = QWaylandBufferRef();
+        nextBuffer = QWaylandBufferRef();
+    }
+
+    void attach(const QWaylandBufferRef &ref) Q_DECL_OVERRIDE
+    {
+        nextBuffer = ref;
+        update = true;
+    }
+
+    void createTexture()
+    {
+        if (bufferRef)
+            bufferRef.destroyTexture();
+        bufferRef = nextBuffer;
+
+        QQuickWindow *window = static_cast<QQuickWindow *>(surface->compositor()->window());
+        // If the next buffer is NULL do not delete the current texture. If the client called
+        // attach(0) the surface is going to be unmapped anyway, if instead the client attached
+        // a valid buffer but died before we got here we want to keep the old buffer around
+        // in case some destroy animation is run.
+        if (bufferRef) {
+            delete texture;
+
+            if (bufferRef.isShm()) {
+                texture = window->createTextureFromImage(bufferRef.image());
+            } else {
+                QQuickWindow::CreateTextureOptions opt = 0;
+                if (surface->useTextureAlpha()) {
+                    opt |= QQuickWindow::TextureHasAlphaChannel;
+                }
+                texture = window->createTextureFromId(bufferRef.createTexture(), surface->size(), opt);
+            }
+            texture->bind();
+        }
+
+        update = false;
+    }
+
+    void invalidateTexture()
+    {
+        delete texture;
+        texture = 0;
+    }
+
+    QWaylandQuickSurface *surface;
+    QWaylandBufferRef bufferRef;
+    QWaylandBufferRef nextBuffer;
+    QSGTexture *texture;
+    bool update;
+};
+
+
+class QWaylandQuickSurfacePrivate : public QWaylandSurfacePrivate
+{
+public:
+    QWaylandQuickSurfacePrivate(wl_client *client, quint32 id, QWaylandQuickCompositor *c, QWaylandQuickSurface *surf)
+        : QWaylandSurfacePrivate(client, id, c, surf)
+        , buffer(new BufferAttacher)
+        , compositor(c)
+        , useTextureAlpha(true)
+        , windowPropertyMap(new QQmlPropertyMap)
+        , clientRenderingEnabled(true)
+    {
+
+    }
+
+    ~QWaylandQuickSurfacePrivate()
+    {
+        windowPropertyMap->deleteLater();
+        // buffer is deleted automatically by ~Surface(), since it is the assigned attacher
+    }
+
+    void surface_commit(Resource *resource) Q_DECL_OVERRIDE
+    {
+        if (m_pending.newlyAttached) {
+            buffer->update = true;
+        }
+        QWaylandSurfacePrivate::surface_commit(resource);
+
+        compositor->update();
+    }
+
+    BufferAttacher *buffer;
+    QWaylandQuickCompositor *compositor;
+    bool useTextureAlpha;
+    QQmlPropertyMap *windowPropertyMap;
+    bool clientRenderingEnabled;
+};
+
+QWaylandQuickSurface::QWaylandQuickSurface(wl_client *client, quint32 id, QWaylandQuickCompositor *compositor)
+                    : QWaylandSurface(new QWaylandQuickSurfacePrivate(client, id, compositor, this))
+{
+    Q_D(QWaylandQuickSurface);
+    d->buffer->surface = this;
+    setBufferAttacher(d->buffer);
+
+    QQuickWindow *window = static_cast<QQuickWindow *>(compositor->window());
+    connect(window, &QQuickWindow::beforeSynchronizing, this, &QWaylandQuickSurface::updateTexture, Qt::DirectConnection);
+    connect(window, &QQuickWindow::sceneGraphInvalidated, this, &QWaylandQuickSurface::invalidateTexture, Qt::DirectConnection);
+    connect(this, &QWaylandSurface::windowPropertyChanged, d->windowPropertyMap, &QQmlPropertyMap::insert);
+    connect(d->windowPropertyMap, &QQmlPropertyMap::valueChanged, this, &QWaylandSurface::setWindowProperty);
+
+}
+
+QWaylandQuickSurface::~QWaylandQuickSurface()
+{
+
+}
+
+QSGTexture *QWaylandQuickSurface::texture() const
+{
+    Q_D(const QWaylandQuickSurface);
+    return d->buffer->texture;
+}
+
+bool QWaylandQuickSurface::useTextureAlpha() const
+{
+    Q_D(const QWaylandQuickSurface);
+    return d->useTextureAlpha;
+}
+
+void QWaylandQuickSurface::setUseTextureAlpha(bool useTextureAlpha)
+{
+    Q_D(QWaylandQuickSurface);
+    if (d->useTextureAlpha != useTextureAlpha) {
+        d->useTextureAlpha = useTextureAlpha;
+        emit useTextureAlphaChanged();
+        emit configure();
+    }
+}
+
+QObject *QWaylandQuickSurface::windowPropertyMap() const
+{
+    Q_D(const QWaylandQuickSurface);
+    return d->windowPropertyMap;
+}
+
+
+void QWaylandQuickSurface::updateTexture()
+{
+    Q_D(QWaylandQuickSurface);
+    if (d->buffer->update)
+        d->buffer->createTexture();
+}
+
+void QWaylandQuickSurface::invalidateTexture()
+{
+    Q_D(QWaylandQuickSurface);
+    d->buffer->invalidateTexture();
+}
+
+bool QWaylandQuickSurface::clientRenderingEnabled() const
+{
+    Q_D(const QWaylandQuickSurface);
+    return d->clientRenderingEnabled;
+}
+
+void QWaylandQuickSurface::setClientRenderingEnabled(bool enabled)
+{
+    Q_D(QWaylandQuickSurface);
+    if (d->clientRenderingEnabled != enabled) {
+        d->clientRenderingEnabled = enabled;
+
+        sendOnScreenVisibilityChange(enabled);
+
+        emit clientRenderingEnabledChanged();
+    }
+}
+
+QT_END_NAMESPACE