1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
|
/****************************************************************************
**
** 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 "quick3dbuffer.h"
#include <QQmlEngine>
#include <QJSValue>
#include <QtQml/private/qqmlengine_p.h>
#include <QtQml/private/qjsvalue_p.h>
#include <QtQml/private/qv4typedarray_p.h>
#include <QtQml/private/qv4arraybuffer_p.h>
QT_BEGIN_NAMESPACE
namespace Qt3DRender {
namespace Render {
namespace Quick {
Quick3DBuffer::Quick3DBuffer(QObject *parent)
: QObject(parent)
, m_engine(Q_NULLPTR)
, m_v4engine(Q_NULLPTR)
{
QObject::connect(parentBuffer(), &Qt3DCore::QAbstractBuffer::dataChanged, this, &Quick3DBuffer::bufferDataChanged);
}
QByteArray Quick3DBuffer::convertToRawData(const QJSValue &jsValue)
{
initEngines();
Q_ASSERT(m_v4engine);
QV4::Scope scope(m_v4engine);
QV4::Scoped<QV4::TypedArray> typedArray(scope,
QJSValuePrivate::convertedToValue(m_v4engine, jsValue));
if (!typedArray)
return QByteArray();
char *dataPtr = reinterpret_cast<char *>(typedArray->arrayData()->data());
dataPtr += typedArray->d()->byteOffset;
uint byteLength = typedArray->byteLength();
return QByteArray::fromRawData(dataPtr, byteLength);
}
QVariant Quick3DBuffer::bufferData() const
{
return QVariant::fromValue(parentBuffer()->data());
}
void Quick3DBuffer::setBufferData(const QVariant &bufferData)
{
QJSValue jsValue = bufferData.value<QJSValue>();
parentBuffer()->setData(convertToRawData(jsValue));
}
void Quick3DBuffer::initEngines()
{
if (m_engine == Q_NULLPTR) {
m_engine = qmlEngine(parent());
m_v4engine = QQmlEnginePrivate::getV4Engine(m_engine);
}
}
} // Quick
} // Render
} // Qt3DRender
QT_END_NAMESPACE
|
