/****************************************************************************
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** Copyright (C) 2017 The Qt Company Ltd.
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** This file is part of the QtQuick module of the Qt Toolkit.
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** ensure the GNU Lesser General Public License version 3 requirements
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** 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
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****************************************************************************/

#include "qsgtexturereader_p.h"
#include <private/qtexturefilereader_p.h>

#if QT_CONFIG(opengl)
#include <private/qsgcompressedtexture_p.h>
#endif

QT_BEGIN_NAMESPACE

QSGTextureReader::QSGTextureReader(QIODevice *device, const QString &fileName)
{
#if QT_CONFIG(opengl)
    m_reader = new QTextureFileReader(device, fileName);
#else
    Q_UNUSED(device);
    Q_UNUSED(fileName);
#endif
}

QSGTextureReader::~QSGTextureReader()
{
    delete m_reader;
}

QQuickTextureFactory *QSGTextureReader::read()
{
#if QT_CONFIG(opengl)
    if (!m_reader)
        return nullptr;

    QTextureFileData texData = m_reader->read();
    if (!texData.isValid())
        return nullptr;

    return new QSGCompressedTextureFactory(texData);
#else
    return nullptr;
#endif
}

bool QSGTextureReader::isTexture()
{
    return m_reader ? m_reader->canRead() : false;
}

QList<QByteArray> QSGTextureReader::supportedFileFormats()
{
    return QTextureFileReader::supportedFileFormats();
}

QT_END_NAMESPACE