| /**************************************************************************** |
| ** |
| ** Copyright (C) 2016 The Qt Company Ltd. |
| ** Contact: https://www.qt.io/licensing/ |
| ** |
| ** This file is part of the QtWebEngine module 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 |
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| ** |
| ** 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 |
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| ** |
| ** $QT_END_LICENSE$ |
| ** |
| ****************************************************************************/ |
| |
| #include "gl_context_qt.h" |
| |
| #include <QGuiApplication> |
| #include <QOpenGLContext> |
| #include <QThread> |
| #include <qpa/qplatformnativeinterface.h> |
| #include "ui/gl/gl_context_egl.h" |
| #include "ui/gl/gl_implementation.h" |
| |
| #if defined(OS_WIN) |
| #include "ui/gl/gl_context_wgl.h" |
| #endif |
| |
| QT_BEGIN_NAMESPACE |
| |
| Q_GUI_EXPORT QOpenGLContext *qt_gl_global_share_context(); |
| GLContextHelper* GLContextHelper::contextHelper = 0; |
| |
| namespace { |
| |
| inline void *resourceForContext(const QByteArray &resource) |
| { |
| #if QT_CONFIG(opengl) |
| QOpenGLContext *shareContext = qt_gl_global_share_context(); |
| if (!shareContext) { |
| qFatal("QWebEngine: OpenGL resource sharing is not set up in QtQuick. Please make sure to call QtWebEngine::initialize() in your main() function."); |
| } |
| return qApp->platformNativeInterface()->nativeResourceForContext(resource, shareContext); |
| #else |
| return nullptr; |
| #endif |
| } |
| |
| inline void *resourceForIntegration(const QByteArray &resource) |
| { |
| return qApp->platformNativeInterface()->nativeResourceForIntegration(resource); |
| } |
| |
| } |
| |
| void GLContextHelper::initialize() |
| { |
| if (!contextHelper) |
| contextHelper = new GLContextHelper; |
| #if QT_CONFIG(opengl) |
| if (QGuiApplication::platformName() == QLatin1String("offscreen")){ |
| contextHelper->m_robustness = false; |
| return; |
| } |
| |
| if (QOpenGLContext *context = qt_gl_global_share_context()) |
| contextHelper->m_robustness = context->format().testOption(QSurfaceFormat::ResetNotification); |
| #endif |
| } |
| |
| void GLContextHelper::destroy() |
| { |
| delete contextHelper; |
| contextHelper = 0; |
| } |
| |
| bool GLContextHelper::initializeContextOnBrowserThread(gl::GLContext* context, gl::GLSurface* surface, gl::GLContextAttribs attribs) |
| { |
| return context->Initialize(surface, attribs); |
| } |
| |
| bool GLContextHelper::initializeContext(gl::GLContext* context, gl::GLSurface* surface, gl::GLContextAttribs attribs) |
| { |
| bool ret = false; |
| Qt::ConnectionType connType = (QThread::currentThread() == qApp->thread()) ? Qt::DirectConnection : Qt::BlockingQueuedConnection; |
| QMetaObject::invokeMethod(contextHelper, "initializeContextOnBrowserThread", connType, |
| Q_RETURN_ARG(bool, ret), |
| Q_ARG(gl::GLContext*, context), |
| Q_ARG(gl::GLSurface*, surface), |
| Q_ARG(gl::GLContextAttribs, attribs)); |
| return ret; |
| } |
| |
| void* GLContextHelper::getEGLConfig() |
| { |
| QByteArray resource = QByteArrayLiteral("eglconfig"); |
| return resourceForContext(resource); |
| } |
| |
| void* GLContextHelper::getGlXConfig() |
| { |
| return resourceForContext(QByteArrayLiteral("glxconfig")); |
| } |
| |
| void* GLContextHelper::getEGLDisplay() |
| { |
| #ifdef Q_OS_WIN |
| // Windows QPA plugin does not implement resourceForIntegration for "egldisplay". |
| // Use resourceForContext instead. |
| return resourceForContext(QByteArrayLiteral("egldisplay")); |
| #else |
| return resourceForIntegration(QByteArrayLiteral("egldisplay")); |
| #endif |
| } |
| |
| void* GLContextHelper::getXDisplay() |
| { |
| QPlatformNativeInterface *pni = QGuiApplication::platformNativeInterface(); |
| if (pni) |
| return pni->nativeResourceForScreen(QByteArrayLiteral("display"), qApp->primaryScreen()); |
| return nullptr; |
| } |
| |
| void* GLContextHelper::getNativeDisplay() |
| { |
| return resourceForIntegration(QByteArrayLiteral("nativedisplay")); |
| } |
| |
| QFunctionPointer GLContextHelper::getGlXGetProcAddress() |
| { |
| QFunctionPointer get_proc_address = nullptr; |
| #if QT_CONFIG(opengl) |
| if (QOpenGLContext *context = qt_gl_global_share_context()) { |
| get_proc_address = context->getProcAddress("glXGetProcAddress"); |
| } |
| #endif |
| return get_proc_address; |
| } |
| |
| QFunctionPointer GLContextHelper::getEglGetProcAddress() |
| { |
| QFunctionPointer get_proc_address = nullptr; |
| #if QT_CONFIG(opengl) |
| if (QOpenGLContext *context = qt_gl_global_share_context()) { |
| get_proc_address = context->getProcAddress("eglGetProcAddress"); |
| } |
| #endif |
| return get_proc_address; |
| } |
| |
| bool GLContextHelper::isCreateContextRobustnessSupported() |
| { |
| return contextHelper->m_robustness; |
| } |
| |
| QT_END_NAMESPACE |
| |
| #if defined(OS_WIN) |
| namespace gl { |
| namespace init { |
| |
| scoped_refptr<GLContext> CreateGLContext(GLShareGroup* share_group, |
| GLSurface* compatible_surface, |
| const GLContextAttribs& attribs) |
| { |
| scoped_refptr<GLContext> context; |
| if (GetGLImplementation() == kGLImplementationDesktopGL) { |
| context = new GLContextWGL(share_group); |
| if (!context->Initialize(compatible_surface, attribs)) |
| return nullptr; |
| return context; |
| } else { |
| context = new GLContextEGL(share_group); |
| } |
| |
| if (!GLContextHelper::initializeContext(context.get(), compatible_surface, attribs)) |
| return nullptr; |
| |
| return context; |
| } |
| |
| } // namespace init |
| } // namespace gl |
| |
| #endif // defined(OS_WIN) |