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
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
|
/****************************************************************************
**
** Copyright (C) 2014 Klaralvdalens Datakonsult AB (KDAB).
** Copyright (C) 2015 The Qt Company Ltd and/or its subsidiary(-ies).
** 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.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef GLTFPARSER_H
#define GLTFPARSER_H
#include <Qt3DRenderer/qmeshdata.h>
#include <Qt3DRenderer/qattribute.h>
#include <Qt3DCore/qentity.h>
#include <Qt3DRenderer/qtechnique.h>
#include <Qt3DRenderer/qbuffer.h>
#include <QJsonDocument>
#include <QMultiHash>
#include <Qt3DRenderer/qabstractmesh.h>
#include <QImage>
#include <Qt3DRenderer/private/abstractsceneparser_p.h>
QT_BEGIN_NAMESPACE
class QFile;
namespace Qt3D {
class QMaterial;
class QShaderProgram;
class QEffect;
class QCamera;
class QCameraLens;
class QAbstractTextureProvider;
class GLTFParser : public AbstractSceneParser
{
Q_OBJECT
public:
GLTFParser();
static bool isGLTFPath(const QString &path);
void setBasePath(const QString& path);
bool setJSON( QJsonDocument json );
// SceneParserInterface interface
void setSource(const QUrl &source) Q_DECL_OVERRIDE;
bool isExtensionSupported(const QUrl &source) Q_DECL_OVERRIDE;
/**
* @brief instantiate Create Nodes based on glTf JSON document
* @return A new scene-graph fragment based on the provided glTf
*/
QEntity *node(QString id) Q_DECL_OVERRIDE;
QEntity *scene(QString id) Q_DECL_OVERRIDE;
QEntity *defaultScene();
QMeshDataPtr mesh(QString id);
QMaterial *material(QString id);
QCameraLens *camera(QString id);
private:
void parse();
void processJSONMesh( QString id, QJsonObject jsonObj );
void processJSONAccessor(QString id, const QJsonObject &json);
void processJSONBuffer(QString id, const QJsonObject &json);
void processJSONBufferView(QString id, const QJsonObject &json);
void processName( const QJsonObject& json, QObject* ins );
QJsonDocument m_json;
QString m_basePath;
bool m_parseDone;
QString m_defaultScene;
// multi-hash because our QMeshData corresponds to a single primitive
// in glTf.
QMultiHash<QString, QMeshDataPtr> m_meshDict;
// GLTF assigns materials at the mesh level, but we do them as siblings,
// so record the association here for when we instantiate meshes
QMap<QMeshData*, QString> m_meshMaterialDict;
QMap<QString, AttributePtr> m_attributeDict;
class BufferData
{
public:
BufferData();
BufferData(QJsonObject json);
quint64 length;
QString path;
// type if ever useful
};
QMap<QString, QMaterial*> m_materialCache;
QMap<QString, BufferData> m_bufferDatas;
QMap<QString, BufferPtr> m_buffers;
QMap<QString, QString> m_shaderPaths;
QMap<QString, QShaderProgram*> m_programs;
QMap<QString, QTechnique *> m_techniques;
// glTF doesn't deal in effects, but we need a trivial one to wrap
// up our techniques
QMap<QString, QEffect*> m_effectProxies;
QMap<QString, QAbstractTextureProvider*> m_textures;
QMap<QString, QImage> m_images;
QFile* resolveLocalData(QString path);
void processJSONShader(QString id, QJsonObject jsonObj);
void processJSONProgram(QString id, QJsonObject jsonObj);
void processJSONTechnique(QString id, QJsonObject jsonObj);
void processJSONImage(QString id, QJsonObject jsonObj);
void processJSONTexture(QString id, QJsonObject jsonObj);
QVariant parameterValueFromJSON(QParameter *p, QJsonValue val);
//Render::RenderState *buildState(const QByteArray& nm, QJsonValue obj);
};
}
QT_END_NAMESPACE
#endif // GLTFPARSER_H
|
