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
|
/****************************************************************************
**
** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** GNU Lesser General Public License Usage
** 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.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU General
** Public License version 3.0 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 3.0 requirements will be met:
** http://www.gnu.org/copyleft/gpl.html.
**
** Other Usage
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qsgvideonode_rgb32.h"
#include <QtDeclarative/qsgtexture.h>
QList<QVideoFrame::PixelFormat> QSGVideoNodeFactory_RGB32::supportedPixelFormats(
QAbstractVideoBuffer::HandleType handleType) const
{
QList<QVideoFrame::PixelFormat> formats;
if (handleType == QAbstractVideoBuffer::NoHandle)
formats.append(QVideoFrame::Format_RGB32);
return formats;
}
QSGVideoNode *QSGVideoNodeFactory_RGB32::createNode(const QVideoSurfaceFormat &format)
{
if (supportedPixelFormats(format.handleType()).contains(format.pixelFormat()))
return new QSGVideoNode_RGB32();
return 0;
}
class QSGVideoTexture_RGB32 : public QSGTexture
{
public:
QSGVideoTexture_RGB32();
int textureId() const { return m_textureId; }
QSize textureSize() const { return m_size; }
bool hasAlphaChannel() const { return false; }
bool hasMipmaps() const { return false; }
void setCurrentFrame(const QVideoFrame &frame) { m_frame = frame; }
//QRectF textureSubRect() const;
void bind();
private:
QVideoFrame m_frame;
GLuint m_textureId;
QSize m_size;
};
QSGVideoTexture_RGB32::QSGVideoTexture_RGB32()
: QSGTexture()
, m_textureId(0)
{
}
void QSGVideoTexture_RGB32::bind()
{
if (m_frame.isValid()) {
if (m_size != m_frame.size()) {
if (m_textureId)
glDeleteTextures(1, &m_textureId);
glGenTextures(1, &m_textureId);
m_size = m_frame.size();
}
if (m_frame.map(QAbstractVideoBuffer::ReadOnly)) {
QGLFunctions *functions = QGLContext::currentContext()->functions();
const uchar *bits = m_frame.bits();
functions->glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, m_textureId);
#ifdef QT_OPENGL_ES
qWarning() << "RGB video doesn't work on GL ES\n";
#else
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA,
m_size.width(), m_size.height(),
0, GL_BGRA, GL_UNSIGNED_BYTE, bits);
#endif
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
m_frame.unmap();
}
m_frame = QVideoFrame();
updateBindOptions(true);
} else {
glBindTexture(GL_TEXTURE_2D, m_textureId);
updateBindOptions(false);
}
}
QSGVideoNode_RGB32::QSGVideoNode_RGB32()
{
setMaterial(&m_material);
m_texture = new QSGVideoTexture_RGB32();
m_material.setTexture(m_texture);
m_material.setFiltering(QSGTexture::Linear);
}
void QSGVideoNode_RGB32::setCurrentFrame(const QVideoFrame &frame)
{
m_texture->setCurrentFrame(frame);
markDirty(DirtyMaterial);
}
|
