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androidsurfacetexture.cpp
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1// Copyright (C) 2021 The Qt Company Ltd.
2// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
3
5#include <QtCore/qmutex.h>
6#include <QtCore/qcoreapplication.h>
7
9
10static const char QtSurfaceTextureListenerClassName[] = "org/qtproject/qt/android/multimedia/QtSurfaceTextureListener";
12Q_GLOBAL_STATIC(SurfaceTextures, g_surfaceTextures);
13Q_GLOBAL_STATIC(QMutex, g_textureMutex);
14
15// native method for QtSurfaceTexture.java
16static void notifyFrameAvailable(JNIEnv* , jobject, jlong id)
17{
18 const QMutexLocker lock(g_textureMutex());
19 const int idx = g_surfaceTextures->indexOf(id);
20 if (idx == -1)
21 return;
22
23 AndroidSurfaceTexture *obj = reinterpret_cast<AndroidSurfaceTexture *>(g_surfaceTextures->at(idx));
24 if (obj)
25 Q_EMIT obj->frameAvailable();
26}
27
29 : QObject()
30{
31 Q_STATIC_ASSERT(sizeof (jlong) >= sizeof (void *));
32 m_surfaceTexture = QJniObject("android/graphics/SurfaceTexture", "(I)V", jint(texName));
33
34 if (!m_surfaceTexture.isValid())
35 return;
36
37 const QMutexLocker lock(g_textureMutex());
38 g_surfaceTextures->append(jlong(this));
39 QJniObject listener(QtSurfaceTextureListenerClassName, "(J)V", jlong(this));
40 setOnFrameAvailableListener(listener);
41}
42
44{
45 if (m_surface.isValid())
46 m_surface.callMethod<void>("release");
47
48 if (m_surfaceTexture.isValid()) {
49 release();
50 const QMutexLocker lock(g_textureMutex());
51 const int idx = g_surfaceTextures->indexOf(jlong(this));
52 if (idx != -1)
53 g_surfaceTextures->remove(idx);
54 }
55}
56
58{
60 if (!m_surfaceTexture.isValid())
61 return matrix;
62
64 jfloatArray array = env->NewFloatArray(16);
65 m_surfaceTexture.callMethod<void>("getTransformMatrix", "([F)V", array);
66 env->GetFloatArrayRegion(array, 0, 16, matrix.data());
67 env->DeleteLocalRef(array);
68
69 return matrix;
70}
71
73{
74 m_surfaceTexture.callMethod<void>("release");
75}
76
78{
79 if (!m_surfaceTexture.isValid())
80 return;
81
82 m_surfaceTexture.callMethod<void>("updateTexImage");
83}
84
86{
87 return m_surfaceTexture.object();
88}
89
91{
92 if (!m_surface.isValid()) {
93 m_surface = QJniObject("android/view/Surface",
94 "(Landroid/graphics/SurfaceTexture;)V",
95 m_surfaceTexture.object());
96 }
97
98 return m_surface.object();
99}
100
102{
103 if (!m_surfaceHolder.isValid()) {
104 m_surfaceHolder = QJniObject("org/qtproject/qt/android/multimedia/QtSurfaceTextureHolder",
105 "(Landroid/view/Surface;)V",
106 surface());
107 }
108
109 return m_surfaceHolder.object();
110}
111
113{
114 if (!m_surfaceTexture.isValid())
115 return;
116
117 m_surfaceTexture.callMethod<void>("attachToGLContext", "(I)V", texName);
118}
119
121{
122 if (!m_surfaceTexture.isValid())
123 return;
124
125 m_surfaceTexture.callMethod<void>("detachFromGLContext");
126}
127
129{
130 static const JNINativeMethod methods[] = {
131 {"notifyFrameAvailable", "(J)V", (void *)notifyFrameAvailable}
132 };
133 const int size = std::size(methods);
135 return false;
136
137 return true;
138}
139
140void AndroidSurfaceTexture::setOnFrameAvailableListener(const QJniObject &listener)
141{
142 m_surfaceTexture.callMethod<void>("setOnFrameAvailableListener",
143 "(Landroid/graphics/SurfaceTexture$OnFrameAvailableListener;)V",
144 listener.object());
145}
146
148
149#include "moc_androidsurfacetexture_p.cpp"
static void notifyFrameAvailable(JNIEnv *, jobject, int id)
static JNINativeMethod methods[]
static QT_BEGIN_NAMESPACE const char QtSurfaceTextureListenerClassName[]
static void notifyFrameAvailable(JNIEnv *, jobject, jlong id)
QList< jlong > SurfaceTextures
AndroidSurfaceTexture(quint32 texName)
void attachToGLContext(quint32 texName)
\inmodule QtCore
\inmodule QtCore
Definition qlist.h:74
The QMatrix4x4 class represents a 4x4 transformation matrix in 3D space.
Definition qmatrix4x4.h:25
\inmodule QtCore
Definition qmutex.h:317
\inmodule QtCore
Definition qmutex.h:285
\inmodule QtCore
Definition qobject.h:90
Combined button and popup list for selecting options.
#define Q_STATIC_ASSERT(Condition)
Definition qassert.h:105
#define Q_GLOBAL_STATIC(TYPE, NAME,...)
GLenum GLuint GLintptr GLsizeiptr size
[1]
GLhandleARB obj
[2]
GLenum array
GLuint GLenum matrix
#define Q_EMIT
unsigned int quint32
Definition qtypes.h:45
QReadWriteLock lock
[0]