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
|
/****************************************************************************
**
** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the Qt scene graph research project.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef SHADEREFFECTITEM_H
#define SHADEREFFECTITEM_H
#include "qxitem.h"
#include "effectnode.h"
#include "material.h"
#include "adaptationinterfaces.h"
class QSignalMapper;
class CustomShaderMaterialData;
class ShaderEffectItem : public QxItem, public AbstractEffect
{
Q_OBJECT
Q_PROPERTY(QString fragmentShader READ fragmentShader WRITE setFragmentShader NOTIFY fragmentShaderChanged);
Q_PROPERTY(QString vertexShader READ vertexShader WRITE setVertexShader NOTIFY vertexShaderChanged);
Q_PROPERTY(bool blending READ blending WRITE setBlending NOTIFY blendingChanged);
Q_PROPERTY(bool active READ active WRITE setActive NOTIFY activeChanged);
Q_PROPERTY(QSize margins READ margins WRITE setMargins NOTIFY marginsChanged);
Q_PROPERTY(QSize meshResolution READ meshResolution WRITE setMeshResolution NOTIFY meshResolutionChanged);
public:
ShaderEffectItem(QxItem *parent = 0);
virtual void componentComplete();
virtual AbstractEffectType *type() const;
virtual AbstractEffectProgram *createProgram() const;
QString fragmentShader() const { return m_fragment_code; }
void setFragmentShader(const QString &code);
QString vertexShader() const { return m_vertex_code; }
void setVertexShader(const QString &code);
bool blending() const { return flags() == Blending; }
void setBlending(bool enable);
bool active() const { return m_active; }
void setActive(bool enable);
QSize margins() const { return m_node.margins(); }
void setMargins(const QSize &margins) { m_node.setMargins(margins); }
QSize meshResolution() const { return m_mesh_resolution; }
void setMeshResolution(const QSize &size);
signals:
void fragmentShaderChanged();
void vertexShaderChanged();
void blendingChanged();
void activeChanged();
void marginsChanged();
void meshResolutionChanged();
protected:
virtual void geometryChanged(const QRectF &newGeometry,
const QRectF &oldGeometry);
virtual void smoothChange(bool newSmooth, bool oldSmooth);
virtual void transformChanged(const QTransform &newTransform, const QTransform &oldTransform);
private slots:
void textureCreated(uint id, const QSize &size, int index);
void effectNodeAboutToRender();
void changeSource(int index);
private:
friend class CustomShaderMaterialData;
void setSource(QxItem *item, int index);
void disconnectPropertySignals();
void connectPropertySignals();
void markShaderProgramAsDirty();
void updateProperties();
void updateShaderProgram();
void lookThroughShaderCode(const QString &code);
void buildGeometry();
void updateTransform();
EffectSubtreeNode m_node;
CustomShaderMaterialData *m_data;
AbstractEffectType m_type;
QGLShaderProgram m_program;
QString m_fragment_code;
QString m_vertex_code;
QVector<QGL::VertexAttribute> m_attributes;
QVector<QByteArray> m_attributeNames;
QSet<QByteArray> m_uniformNames;
QSize m_mesh_resolution;
struct SourceData
{
QSignalMapper *mapper;
QxItem *item;
QByteArray name;
QGLTexture2DConstPtr texture;
int depth;
};
QVector<SourceData> m_sources;
uint m_linear_filtering : 1;
uint m_program_dirty : 1;
uint m_geometry_dirty : 1;
uint m_active : 1;
uint m_respects_matrix : 1;
uint m_respects_opacity : 1;
};
#endif // SHADEREFFECTITEM_H
|
