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Diffstat (limited to 'src/render/texture/qtextureimage.cpp')
| -rw-r--r-- | src/render/texture/qtextureimage.cpp | 195 |
1 files changed, 195 insertions, 0 deletions
diff --git a/src/render/texture/qtextureimage.cpp b/src/render/texture/qtextureimage.cpp new file mode 100644 index 000000000..3d8a58b3e --- /dev/null +++ b/src/render/texture/qtextureimage.cpp @@ -0,0 +1,195 @@ +/**************************************************************************** +** +** Copyright (C) 2015 Klaralvdalens Datakonsult AB (KDAB). +** Contact: http://www.qt-project.org/legal +** +** This file is part of the Qt3D module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL3$ +** 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 http://www.qt.io/terms-conditions. For further +** information use the contact form at http://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.LGPLv3 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.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 later 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 2.0 requirements will be +** met: http://www.gnu.org/licenses/gpl-2.0.html. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "qtextureimage.h" +#include "qabstracttextureimage_p.h" +#include <Qt3DCore/private/qurlhelper_p.h> + +QT_BEGIN_NAMESPACE + +namespace Qt3DRender { + +class QTextureImagePrivate: public QAbstractTextureImagePrivate +{ +public: + QTextureImagePrivate() + : QAbstractTextureImagePrivate() + { + } + + Q_DECLARE_PUBLIC(QTextureImage) + QUrl m_source; +}; + +class QImageTextureDataFunctor : public QTextureDataFunctor +{ +public: + QImageTextureDataFunctor(const QUrl &url) + : QTextureDataFunctor() + , m_url(url) + {} + + // Will be executed from within a QAspectJob + TexImageDataPtr operator ()() Q_DECL_FINAL + { + TexImageDataPtr dataPtr; + if (m_url.isLocalFile() || m_url.scheme() == QStringLiteral("qrc")) { + QString source = Qt3D::QUrlHelper::urlToLocalFileOrQrc(m_url); + dataPtr.reset(new TexImageData()); + if (dataPtr->setCompressedFile(source)) + return dataPtr; + QImage img; + if (img.load(source)) { + dataPtr->setImage(img); + return dataPtr; + } + dataPtr.reset(); + qWarning() << "Failed to load image : " << source; + } else { + qWarning() << "implement loading from remote URLs"; + } + return dataPtr; + } + + bool operator ==(const QTextureDataFunctor &other) const Q_DECL_FINAL + { + const QImageTextureDataFunctor *otherFunctor = functor_cast<QImageTextureDataFunctor>(&other); + return (otherFunctor != Q_NULLPTR && otherFunctor->m_url == m_url); + } + + QT3D_FUNCTOR(QImageTextureDataFunctor) + +private: + QUrl m_url; +}; + +/*! + \class QTextureImage + \inmodule Qt3DRenderer + \since 5.5 + \brief Encapsulates the necessary information to create an OpenGL texture + image from an image source. + + It contains the necessary information mipmap level, layer, cube face and + source URL to load at the proper place data into an OpenGL texture. + */ + +/*! + \qmltype TextureImage + \instantiates Qt3DRender::QTextureImage + \inherits AbstractTextureImage + \inqmlmodule Qt3D.Renderer + \since 5.5 + \brief Encapsulates the necessary information to create an OpenGL texture + image from an image source. +*/ + +/*! + Constructs a new Qt3DRender::QTextureImage instance with \a parent as parent. + */ +QTextureImage::QTextureImage(QNode *parent) + : QAbstractTextureImage(*new QTextureImagePrivate, parent) +{ +} + +/*! + The destructor. + */ +QTextureImage::~QTextureImage() +{ + QNode::cleanup(); +} + +/*! + Returns the source url from which data for the texture image will be loaded. + */ +QUrl QTextureImage::source() const +{ + Q_D(const QTextureImage); + return d->m_source; +} + +/*! + \property Qt3DRender::QTextureImage::source + + This property holdsthe source url from which data for the texture + image will be loaded. +*/ + +/*! + \qmlproperty url Qt3D.Renderer::TextureImage::source + + This property holdsthe source url from which data for the texture + image will be loaded. +*/ + +/*! + Sets the source url of the texture image to \a source. + \note This triggers a call to update() + */ +void QTextureImage::setSource(const QUrl &source) +{ + Q_D(QTextureImage); + if (source != d->m_source) { + d->m_source = source; + emit sourceChanged(); + update(); + } +} + +/*! + Returns the Qt3DRender::QTextureDataFunctorPtr functor to be used by the + backend to load the texture image data into an OpenGL texture object. + */ +QTextureDataFunctorPtr QTextureImage::dataFunctor() const +{ + return QTextureDataFunctorPtr(new QImageTextureDataFunctor(source())); +} + +/*! + Copies \ref into this texture image. + */ +void QTextureImage::copy(const QNode *ref) +{ + QAbstractTextureImage::copy(ref); + const QTextureImage *img = static_cast<const QTextureImage *>(ref); + d_func()->m_source = img->source(); +} + +} // namespace Qt3DRender + +QT_END_NAMESPACE + |