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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** 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 https://www.qt.io/terms-conditions. For further
** information use the contact form at https://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.LGPL3 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-3.0.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 (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "androidsurfacetexture.h"
#include <QtCore/private/qjni_p.h>
#include <QtCore/private/qjnihelpers_p.h>
#include <QtCore/qmutex.h>
QT_BEGIN_NAMESPACE
static const char QtSurfaceTextureListenerClassName[] = "org/qtproject/qt5/android/multimedia/QtSurfaceTextureListener";
typedef QVector<jlong> SurfaceTextures;
Q_GLOBAL_STATIC(SurfaceTextures, g_surfaceTextures);
Q_GLOBAL_STATIC(QMutex, g_textureMutex);
// native method for QtSurfaceTexture.java
static void notifyFrameAvailable(JNIEnv* , jobject, jlong id)
{
const QMutexLocker lock(g_textureMutex);
const int idx = g_surfaceTextures->indexOf(id);
if (idx == -1)
return;
AndroidSurfaceTexture *obj = reinterpret_cast<AndroidSurfaceTexture *>(g_surfaceTextures->at(idx));
if (obj)
Q_EMIT obj->frameAvailable();
}
AndroidSurfaceTexture::AndroidSurfaceTexture(quint32 texName)
: QObject()
{
Q_STATIC_ASSERT(sizeof (jlong) >= sizeof (void *));
// API level 11 or higher is required
if (QtAndroidPrivate::androidSdkVersion() < 11) {
qWarning("Camera preview and video playback require Android 3.0 (API level 11) or later.");
return;
}
QJNIEnvironmentPrivate env;
m_surfaceTexture = QJNIObjectPrivate("android/graphics/SurfaceTexture", "(I)V", jint(texName));
if (env->ExceptionCheck()) {
#ifdef QT_DEBUG
env->ExceptionDescribe();
#endif // QT_DEBUG
env->ExceptionClear();
}
if (!m_surfaceTexture.isValid())
return;
const QMutexLocker lock(g_textureMutex);
g_surfaceTextures->append(jlong(this));
QJNIObjectPrivate listener(QtSurfaceTextureListenerClassName, "(J)V", jlong(this));
setOnFrameAvailableListener(listener);
}
AndroidSurfaceTexture::~AndroidSurfaceTexture()
{
if (QtAndroidPrivate::androidSdkVersion() > 13 && m_surface.isValid())
m_surface.callMethod<void>("release");
if (m_surfaceTexture.isValid()) {
release();
const QMutexLocker lock(g_textureMutex);
const int idx = g_surfaceTextures->indexOf(jlong(this));
if (idx != -1)
g_surfaceTextures->remove(idx);
}
}
QMatrix4x4 AndroidSurfaceTexture::getTransformMatrix()
{
QMatrix4x4 matrix;
if (!m_surfaceTexture.isValid())
return matrix;
QJNIEnvironmentPrivate env;
jfloatArray array = env->NewFloatArray(16);
m_surfaceTexture.callMethod<void>("getTransformMatrix", "([F)V", array);
env->GetFloatArrayRegion(array, 0, 16, matrix.data());
env->DeleteLocalRef(array);
return matrix;
}
void AndroidSurfaceTexture::release()
{
if (QtAndroidPrivate::androidSdkVersion() < 14)
return;
m_surfaceTexture.callMethod<void>("release");
}
void AndroidSurfaceTexture::updateTexImage()
{
if (!m_surfaceTexture.isValid())
return;
m_surfaceTexture.callMethod<void>("updateTexImage");
}
jobject AndroidSurfaceTexture::surfaceTexture()
{
return m_surfaceTexture.object();
}
jobject AndroidSurfaceTexture::surface()
{
if (!m_surface.isValid()) {
m_surface = QJNIObjectPrivate("android/view/Surface",
"(Landroid/graphics/SurfaceTexture;)V",
m_surfaceTexture.object());
}
return m_surface.object();
}
jobject AndroidSurfaceTexture::surfaceHolder()
{
if (!m_surfaceHolder.isValid()) {
m_surfaceHolder = QJNIObjectPrivate("org/qtproject/qt5/android/multimedia/QtSurfaceTextureHolder",
"(Landroid/view/Surface;)V",
surface());
}
return m_surfaceHolder.object();
}
void AndroidSurfaceTexture::attachToGLContext(quint32 texName)
{
if (QtAndroidPrivate::androidSdkVersion() < 16 || !m_surfaceTexture.isValid())
return;
m_surfaceTexture.callMethod<void>("attachToGLContext", "(I)V", texName);
}
void AndroidSurfaceTexture::detachFromGLContext()
{
if (QtAndroidPrivate::androidSdkVersion() < 16 || !m_surfaceTexture.isValid())
return;
m_surfaceTexture.callMethod<void>("detachFromGLContext");
}
bool AndroidSurfaceTexture::initJNI(JNIEnv *env)
{
// SurfaceTexture is available since API 11.
if (QtAndroidPrivate::androidSdkVersion() < 11)
return false;
jclass clazz = QJNIEnvironmentPrivate::findClass(QtSurfaceTextureListenerClassName,
env);
static const JNINativeMethod methods[] = {
{"notifyFrameAvailable", "(J)V", (void *)notifyFrameAvailable}
};
if (clazz && env->RegisterNatives(clazz,
methods,
sizeof(methods) / sizeof(methods[0])) != JNI_OK) {
return false;
}
return true;
}
void AndroidSurfaceTexture::setOnFrameAvailableListener(const QJNIObjectPrivate &listener)
{
m_surfaceTexture.callMethod<void>("setOnFrameAvailableListener",
"(Landroid/graphics/SurfaceTexture$OnFrameAvailableListener;)V",
listener.object());
}
QT_END_NAMESPACE
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