| /**************************************************************************** |
| ** |
| ** Copyright (C) 2018 The Qt Company Ltd. |
| ** Contact: https://www.qt.io/licensing/ |
| ** |
| ** This file is part of the Qt WebGL module of the Qt Toolkit. |
| ** |
| ** $QT_BEGIN_LICENSE:GPL$ |
| ** 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 |
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| ** |
| ** GNU General Public License Usage |
| ** Alternatively, this file may be used under the terms of the GNU |
| ** General Public License version 3 or (at your option) any later version |
| ** approved by the KDE Free Qt Foundation. The licenses are as published by |
| ** the Free Software Foundation and appearing in the file LICENSE.GPL3 |
| ** included in the packaging of this file. Please review the following |
| ** information to ensure the GNU General Public License requirements will |
| ** be met: https://www.gnu.org/licenses/gpl-3.0.html. |
| ** |
| ** $QT_END_LICENSE$ |
| ** |
| ****************************************************************************/ |
| |
| #include <QtCore/qdatastream.h> |
| #include <QtCore/qvariant.h> |
| |
| #ifndef PARAMETERS_H |
| #define PARAMETERS_H |
| |
| QT_BEGIN_NAMESPACE |
| |
| namespace Parameters |
| { |
| |
| QVariantList read(const QByteArray &data, QDataStream &stream, quint32 &offset, int count); |
| |
| template<typename T> |
| T readNext(QDataStream &stream, quint32 &offset) |
| { |
| T value; |
| stream >> value; |
| offset += sizeof(T); |
| return value; |
| } |
| |
| template<> |
| QString readNext(QDataStream &stream, quint32 &offset) |
| { |
| std::vector<char> data(readNext<quint32>(stream, offset)); |
| stream.readRawData(&data[0], data.size()); |
| offset += data.size(); |
| return QString::fromUtf8(data.data(), data.size()); |
| } |
| |
| template<> |
| QByteArray readNext(QDataStream &stream, quint32 &offset) |
| { |
| QByteArray data; |
| stream >> data; |
| offset += quint32(int(sizeof(qint32)) + data.size()); |
| return data; |
| } |
| |
| QVariantList readNextArray(const QByteArray &data, QDataStream &stream, quint32 &offset) |
| { |
| quint8 count; |
| stream >> count; |
| offset += sizeof(count); |
| return read(data, stream, offset, count); |
| } |
| |
| QVariant readNext(const QByteArray &data, QDataStream &stream, quint32 &offset) |
| { |
| char type; |
| offset += quint32(stream.readRawData(&type, 1)); |
| switch (type) { |
| case 'i': return readNext<qint32>(stream, offset); |
| case 'u': return readNext<quint32>(stream, offset); |
| case 'd': return readNext<double>(stream, offset); |
| case 'b': return readNext<quint8>(stream, offset); |
| case 's': return readNext<QString>(stream, offset); |
| case 'x': return readNext<QByteArray>(stream, offset); |
| case 'a': return readNextArray(data, stream, offset); |
| } |
| return QVariant(); |
| } |
| |
| QVariantList read(const QByteArray &data, QDataStream &stream, quint32 &offset) |
| { |
| QVariantList parameters; |
| for (const auto size = data.size(); int(offset + 4) < size;) |
| parameters.append(readNext(data, stream, offset)); |
| return parameters; |
| } |
| |
| QVariantList read(const QByteArray &data, QDataStream &stream, quint32 &offset, int count) |
| { |
| QVariantList parameters; |
| for (int i = 0; i < count; ++i) |
| parameters.append(readNext(data, stream, offset)); |
| return parameters; |
| } |
| |
| } |
| |
| QT_END_NAMESPACE |
| |
| #endif // PARAMETERS_H |