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/****************************************************************************
**
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part 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 "qsgvideonode_p.h"
QT_BEGIN_NAMESPACE
QSGVideoNode::QSGVideoNode()
: m_orientation(-1)
{
setFlag(QSGNode::OwnsGeometry);
}
/* Helpers */
static inline void qSetGeom(QSGGeometry::TexturedPoint2D *v, const QPointF &p)
{
v->x = p.x();
v->y = p.y();
}
static inline void qSetTex(QSGGeometry::TexturedPoint2D *v, const QPointF &p)
{
v->tx = p.x();
v->ty = p.y();
}
/* Update the vertices and texture coordinates. Orientation must be in {0,90,180,270} */
void QSGVideoNode::setTexturedRectGeometry(const QRectF &rect, const QRectF &textureRect, int orientation)
{
if (rect == m_rect && textureRect == m_textureRect && orientation == m_orientation)
return;
m_rect = rect;
m_textureRect = textureRect;
m_orientation = orientation;
QSGGeometry *g = geometry();
if (g == 0)
g = new QSGGeometry(QSGGeometry::defaultAttributes_TexturedPoint2D(), 4);
QSGGeometry::TexturedPoint2D *v = g->vertexDataAsTexturedPoint2D();
// Set geometry first
qSetGeom(v + 0, rect.topLeft());
qSetGeom(v + 1, rect.bottomLeft());
qSetGeom(v + 2, rect.topRight());
qSetGeom(v + 3, rect.bottomRight());
// and then texture coordinates
switch (orientation) {
default:
// tl, bl, tr, br
qSetTex(v + 0, textureRect.topLeft());
qSetTex(v + 1, textureRect.bottomLeft());
qSetTex(v + 2, textureRect.topRight());
qSetTex(v + 3, textureRect.bottomRight());
break;
case 90:
// tr, tl, br, bl
qSetTex(v + 0, textureRect.topRight());
qSetTex(v + 1, textureRect.topLeft());
qSetTex(v + 2, textureRect.bottomRight());
qSetTex(v + 3, textureRect.bottomLeft());
break;
case 180:
// br, tr, bl, tl
qSetTex(v + 0, textureRect.bottomRight());
qSetTex(v + 1, textureRect.topRight());
qSetTex(v + 2, textureRect.bottomLeft());
qSetTex(v + 3, textureRect.topLeft());
break;
case 270:
// bl, br, tl, tr
qSetTex(v + 0, textureRect.bottomLeft());
qSetTex(v + 1, textureRect.bottomRight());
qSetTex(v + 2, textureRect.topLeft());
qSetTex(v + 3, textureRect.topRight());
break;
}
if (!geometry())
setGeometry(g);
markDirty(DirtyGeometry);
}
QT_END_NAMESPACE
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