72 lines
1.8 KiB
C++
72 lines
1.8 KiB
C++
// Copyright (C) 2018 The Qt Company Ltd.
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// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
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#include "qtexturefilereader_p.h"
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#include "qpkmhandler_p.h"
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#include "qktxhandler_p.h"
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#include "qastchandler_p.h"
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#include <QFileInfo>
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QT_BEGIN_NAMESPACE
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QTextureFileHandler::~QTextureFileHandler() = default;
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QTextureFileReader::QTextureFileReader(QIODevice *device, const QString &fileName)
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: m_device(device), m_fileName(fileName)
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{
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}
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QTextureFileReader::~QTextureFileReader()
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{
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delete m_handler;
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}
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QTextureFileData QTextureFileReader::read()
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{
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if (!canRead())
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return QTextureFileData();
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return m_handler->read();
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}
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bool QTextureFileReader::canRead()
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{
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if (!checked) {
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checked = true;
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if (!init())
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return false;
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QByteArray headerBlock = m_device->peek(64);
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QFileInfo fi(m_fileName);
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QByteArray suffix = fi.suffix().toLower().toLatin1();
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QByteArray logName = fi.fileName().toUtf8();
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// Currently the handlers are hardcoded; later maybe a list of plugins
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if (QPkmHandler::canRead(suffix, headerBlock)) {
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m_handler = new QPkmHandler(m_device, logName);
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} else if (QKtxHandler::canRead(suffix, headerBlock)) {
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m_handler = new QKtxHandler(m_device, logName);
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} else if (QAstcHandler::canRead(suffix, headerBlock)) {
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m_handler = new QAstcHandler(m_device, logName);
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}
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// else if OtherHandler::canRead() ...etc.
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}
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return (m_handler != nullptr);
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}
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QList<QByteArray> QTextureFileReader::supportedFileFormats()
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{
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// Hardcoded for now
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return {QByteArrayLiteral("pkm"), QByteArrayLiteral("ktx"), QByteArrayLiteral("astc")};
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}
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bool QTextureFileReader::init()
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{
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if (!m_device)
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return false;
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return m_device->isReadable();
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}
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QT_END_NAMESPACE
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