| 1 | // Copyright (C) 2018 The Qt Company Ltd. |
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| 2 | // 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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| 3 | |
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| 4 | #include "qtexturefilereader_p.h" |
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| 5 | |
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| 6 | #include "qpkmhandler_p.h" |
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| 7 | #include "qktxhandler_p.h" |
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| 8 | #include "qastchandler_p.h" |
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| 9 | |
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| 10 | #include <QFileInfo> |
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| 11 | |
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| 12 | QT_BEGIN_NAMESPACE |
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| 13 | |
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| 14 | QTextureFileHandler::~QTextureFileHandler() = default; |
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| 15 | |
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| 16 | QTextureFileReader::QTextureFileReader(QIODevice *device, const QString &fileName) |
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| 17 | : m_device(device), m_fileName(fileName) |
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| 18 | { |
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| 19 | } |
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| 20 | |
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| 21 | QTextureFileReader::~QTextureFileReader() |
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| 22 | { |
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| 23 | delete m_handler; |
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| 24 | } |
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| 25 | |
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| 26 | QTextureFileData QTextureFileReader::read() |
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| 27 | { |
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| 28 | if (!canRead()) |
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| 29 | return QTextureFileData(); |
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| 30 | return m_handler->read(); |
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| 31 | } |
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| 32 | |
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| 33 | bool QTextureFileReader::canRead() |
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| 34 | { |
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| 35 | if (!checked) { |
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| 36 | checked = true; |
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| 37 | if (!init()) |
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| 38 | return false; |
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| 39 | |
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| 40 | QByteArray = m_device->peek(maxlen: 64); |
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| 41 | QFileInfo fi(m_fileName); |
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| 42 | QByteArray suffix = fi.suffix().toLower().toLatin1(); |
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| 43 | QByteArray logName = fi.fileName().toUtf8(); |
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| 44 | |
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| 45 | // Currently the handlers are hardcoded; later maybe a list of plugins |
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| 46 | if (QPkmHandler::canRead(suffix, block: headerBlock)) { |
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| 47 | m_handler = new QPkmHandler(m_device, logName); |
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| 48 | } else if (QKtxHandler::canRead(suffix, block: headerBlock)) { |
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| 49 | m_handler = new QKtxHandler(m_device, logName); |
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| 50 | } else if (QAstcHandler::canRead(suffix, block: headerBlock)) { |
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| 51 | m_handler = new QAstcHandler(m_device, logName); |
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| 52 | } |
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| 53 | // else if OtherHandler::canRead() ...etc. |
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| 54 | } |
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| 55 | return (m_handler != nullptr); |
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| 56 | } |
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| 57 | |
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| 58 | QList<QByteArray> QTextureFileReader::supportedFileFormats() |
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| 59 | { |
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| 60 | // Hardcoded for now |
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| 61 | return {QByteArrayLiteral("pkm" ), QByteArrayLiteral("ktx" ), QByteArrayLiteral("astc" )}; |
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| 62 | } |
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| 63 | |
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| 64 | bool QTextureFileReader::init() |
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| 65 | { |
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| 66 | if (!m_device) |
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| 67 | return false; |
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| 68 | return m_device->isReadable(); |
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| 69 | } |
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| 70 | |
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| 71 | QT_END_NAMESPACE |
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| 72 | |
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