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Diffstat (limited to 'src/core/ozone/gl_context_qt.cpp')
| -rw-r--r-- | src/core/ozone/gl_context_qt.cpp | 187 |
1 files changed, 187 insertions, 0 deletions
diff --git a/src/core/ozone/gl_context_qt.cpp b/src/core/ozone/gl_context_qt.cpp new file mode 100644 index 000000000..1850380a2 --- /dev/null +++ b/src/core/ozone/gl_context_qt.cpp @@ -0,0 +1,187 @@ +/**************************************************************************** +** +** 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 +** 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 "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) +{ +#ifndef QT_NO_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; +} + +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() +{ + return resourceForIntegration(QByteArrayLiteral("egldisplay")); +} + +void* GLContextHelper::getXDisplay() +{ + return qApp->platformNativeInterface()->nativeResourceForScreen( + QByteArrayLiteral("display"), qApp->primaryScreen()); +} + +void* GLContextHelper::getNativeDisplay() +{ + return resourceForIntegration(QByteArrayLiteral("nativedisplay")); +} + +QFunctionPointer GLContextHelper::getGlXGetProcAddress() +{ + QFunctionPointer get_proc_address = nullptr; +#ifndef QT_NO_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; +#ifndef QT_NO_OPENGL + if (QOpenGLContext *context = qt_gl_global_share_context()) { + get_proc_address = context->getProcAddress("eglGetProcAddress"); + } +#endif + return get_proc_address; +} + +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) |