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/*
Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
Copyright (C) 2013 basysKom GmbH <info@basyskom.com>
Copyright (C) 2013 Collabora Ltd. <info@collabora.com>
This library is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License version 2.1
as published by the Free Software Foundation.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "videonode.h"
#include "videomaterial.h"
#include <QtQuick/QSGFlatColorMaterial>
VideoNode::VideoNode()
: QSGGeometryNode()
{
setFlags(OwnsGeometry | OwnsMaterial, true);
setMaterialTypeSolidBlack();
}
void VideoNode::changeFormat(const BufferFormat & format)
{
setMaterial(VideoMaterial::create(format));
setGeometry(0);
m_materialType = MaterialTypeVideo;
}
void VideoNode::setMaterialTypeSolidBlack()
{
QSGFlatColorMaterial *m = new QSGFlatColorMaterial;
m->setColor(Qt::black);
setMaterial(m);
setGeometry(0);
m_materialType = MaterialTypeSolidBlack;
}
void VideoNode::setCurrentFrame(GstBuffer* buffer)
{
Q_ASSERT (m_materialType == MaterialTypeVideo);
static_cast<VideoMaterial*>(material())->setCurrentFrame(buffer);
markDirty(DirtyMaterial);
}
void VideoNode::updateColors(int brightness, int contrast, int hue, int saturation)
{
Q_ASSERT (m_materialType == MaterialTypeVideo);
static_cast<VideoMaterial*>(material())->updateColors(brightness, contrast, hue, saturation);
markDirty(DirtyMaterial);
}
/* Helpers */
template <typename V>
static inline void setGeom(V *v, const QPointF &p)
{
v->x = p.x();
v->y = p.y();
}
static inline void setTex(QSGGeometry::TexturedPoint2D *v, const QPointF &p)
{
v->tx = p.x();
v->ty = p.y();
}
void VideoNode::updateGeometry(const PaintAreas & areas)
{
QSGGeometry *g = geometry();
if (m_materialType == MaterialTypeVideo) {
if (!g)
g = new QSGGeometry(QSGGeometry::defaultAttributes_TexturedPoint2D(), 4);
QSGGeometry::TexturedPoint2D *v = g->vertexDataAsTexturedPoint2D();
// Set geometry first
setGeom(v + 0, areas.videoArea.topLeft());
setGeom(v + 1, areas.videoArea.bottomLeft());
setGeom(v + 2, areas.videoArea.topRight());
setGeom(v + 3, areas.videoArea.bottomRight());
// and then texture coordinates
setTex(v + 0, areas.sourceRect.topLeft());
setTex(v + 1, areas.sourceRect.bottomLeft());
setTex(v + 2, areas.sourceRect.topRight());
setTex(v + 3, areas.sourceRect.bottomRight());
} else {
if (!g)
g = new QSGGeometry(QSGGeometry::defaultAttributes_Point2D(), 4);
QSGGeometry::Point2D *v = g->vertexDataAsPoint2D();
setGeom(v + 0, areas.videoArea.topLeft());
setGeom(v + 1, areas.videoArea.bottomLeft());
setGeom(v + 2, areas.videoArea.topRight());
setGeom(v + 3, areas.videoArea.bottomRight());
}
if (!geometry())
setGeometry(g);
markDirty(DirtyGeometry);
}
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