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
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
|
/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** This file is part of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL21$
** 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 2.1 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** As a special exception, The Qt Company gives you certain additional
** rights. These rights are described in The Qt Company LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qsgvideonode_texture_p.h"
#include <QtQuick/qsgtexturematerial.h>
#include <QtQuick/qsgmaterial.h>
#include <QtCore/qmutex.h>
#include <QtGui/QOpenGLContext>
#include <QtGui/QOpenGLFunctions>
#include <QtGui/QOpenGLShaderProgram>
#include <QtMultimedia/private/qmediaopenglhelper_p.h>
QT_BEGIN_NAMESPACE
QList<QVideoFrame::PixelFormat> QSGVideoNodeFactory_Texture::supportedPixelFormats(
QAbstractVideoBuffer::HandleType handleType) const
{
QList<QVideoFrame::PixelFormat> pixelFormats;
if (handleType == QAbstractVideoBuffer::GLTextureHandle) {
pixelFormats.append(QVideoFrame::Format_RGB565);
pixelFormats.append(QVideoFrame::Format_RGB32);
pixelFormats.append(QVideoFrame::Format_ARGB32);
pixelFormats.append(QVideoFrame::Format_BGR32);
pixelFormats.append(QVideoFrame::Format_BGRA32);
}
return pixelFormats;
}
QSGVideoNode *QSGVideoNodeFactory_Texture::createNode(const QVideoSurfaceFormat &format)
{
if (supportedPixelFormats(format.handleType()).contains(format.pixelFormat()))
return new QSGVideoNode_Texture(format);
return 0;
}
class QSGVideoMaterialShader_Texture : public QSGMaterialShader
{
public:
QSGVideoMaterialShader_Texture()
: QSGMaterialShader()
{
setShaderSourceFile(QOpenGLShader::Vertex, QStringLiteral(":/qtmultimediaquicktools/shaders/rgbvideo.vert"));
setShaderSourceFile(QOpenGLShader::Fragment, QStringLiteral(":/qtmultimediaquicktools/shaders/rgbvideo.frag"));
}
void updateState(const RenderState &state, QSGMaterial *newMaterial, QSGMaterial *oldMaterial);
virtual char const *const *attributeNames() const {
static const char *names[] = {
"qt_VertexPosition",
"qt_VertexTexCoord",
0
};
return names;
}
protected:
virtual void initialize() {
m_id_matrix = program()->uniformLocation("qt_Matrix");
m_id_Texture = program()->uniformLocation("rgbTexture");
m_id_opacity = program()->uniformLocation("opacity");
}
int m_id_matrix;
int m_id_Texture;
int m_id_opacity;
};
class QSGVideoMaterialShader_Texture_swizzle : public QSGVideoMaterialShader_Texture
{
public:
QSGVideoMaterialShader_Texture_swizzle()
: QSGVideoMaterialShader_Texture()
{
setShaderSourceFile(QOpenGLShader::Fragment, QStringLiteral(":/qtmultimediaquicktools/shaders/rgbvideo_swizzle.frag"));
}
};
class QSGVideoMaterial_Texture : public QSGMaterial
{
public:
QSGVideoMaterial_Texture(const QVideoSurfaceFormat &format) :
m_format(format),
m_textureId(0),
m_opacity(1.0)
{
setFlag(Blending, false);
}
~QSGVideoMaterial_Texture()
{
m_frame = QVideoFrame();
}
virtual QSGMaterialType *type() const {
static QSGMaterialType normalType, swizzleType;
return needsSwizzling() ? &swizzleType : &normalType;
}
virtual QSGMaterialShader *createShader() const {
return needsSwizzling() ? new QSGVideoMaterialShader_Texture_swizzle
: new QSGVideoMaterialShader_Texture;
}
virtual int compare(const QSGMaterial *other) const {
const QSGVideoMaterial_Texture *m = static_cast<const QSGVideoMaterial_Texture *>(other);
if (!m_textureId)
return 1;
int diff = m_textureId - m->m_textureId;
if (diff)
return diff;
diff = m_format.pixelFormat() - m->m_format.pixelFormat();
if (diff)
return diff;
return (m_opacity > m->m_opacity) ? 1 : -1;
}
void updateBlending() {
setFlag(Blending, qFuzzyCompare(m_opacity, qreal(1.0)) ? false : true);
}
void setVideoFrame(const QVideoFrame &frame) {
QMutexLocker lock(&m_frameMutex);
m_frame = frame;
}
void bind()
{
QMutexLocker lock(&m_frameMutex);
if (m_frame.isValid()) {
m_textureId = m_frame.handle().toUInt();
QOpenGLFunctions *functions = QOpenGLContext::currentContext()->functions();
functions->glBindTexture(GL_TEXTURE_2D, m_textureId);
functions->glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
functions->glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
functions->glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
functions->glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
} else {
m_textureId = 0;
}
}
QVideoFrame m_frame;
QMutex m_frameMutex;
QSize m_textureSize;
QVideoSurfaceFormat m_format;
GLuint m_textureId;
qreal m_opacity;
private:
bool needsSwizzling() const {
return !QMediaOpenGLHelper::isANGLE()
&& (m_format.pixelFormat() == QVideoFrame::Format_RGB32
|| m_format.pixelFormat() == QVideoFrame::Format_ARGB32);
}
};
QSGVideoNode_Texture::QSGVideoNode_Texture(const QVideoSurfaceFormat &format) :
m_format(format)
{
setFlag(QSGNode::OwnsMaterial);
m_material = new QSGVideoMaterial_Texture(format);
setMaterial(m_material);
}
QSGVideoNode_Texture::~QSGVideoNode_Texture()
{
}
void QSGVideoNode_Texture::setCurrentFrame(const QVideoFrame &frame, FrameFlags)
{
m_material->setVideoFrame(frame);
markDirty(DirtyMaterial);
}
void QSGVideoMaterialShader_Texture::updateState(const RenderState &state,
QSGMaterial *newMaterial,
QSGMaterial *oldMaterial)
{
Q_UNUSED(oldMaterial);
QSGVideoMaterial_Texture *mat = static_cast<QSGVideoMaterial_Texture *>(newMaterial);
program()->setUniformValue(m_id_Texture, 0);
mat->bind();
if (state.isOpacityDirty()) {
mat->m_opacity = state.opacity();
mat->updateBlending();
program()->setUniformValue(m_id_opacity, GLfloat(mat->m_opacity));
}
if (state.isMatrixDirty())
program()->setUniformValue(m_id_matrix, state.combinedMatrix());
}
QT_END_NAMESPACE
|
