b369746ae7
Header inclusion is not needed, hence remove it for WinRT. Change-Id: I8117439849143975cad3dc14e36118b8da4621de Reviewed-by: Oliver Wolff <oliver.wolff@theqtcompany.com>
110 lines
4.0 KiB
C++
110 lines
4.0 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
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** Contact: http://www.qt-project.org/legal
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**
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** This file is part of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL21$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and Digia. For licensing terms and
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** conditions see http://qt.digia.com/licensing. For further information
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** use the contact form at http://qt.digia.com/contact-us.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 or version 3 as published by the Free
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** Software Foundation and appearing in the file LICENSE.LGPLv21 and
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** LICENSE.LGPLv3 included in the packaging of this file. Please review the
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** following information to ensure the GNU Lesser General Public License
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** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
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** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Digia gives you certain additional
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** rights. These rights are described in the Digia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#ifndef QMEDIAOPENGLHELPER_P_H
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#define QMEDIAOPENGLHELPER_P_H
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//
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// W A R N I N G
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// -------------
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//
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// This file is not part of the Qt API. It exists purely as an
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// implementation detail. This header file may change from version to
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// version without notice, or even be removed.
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//
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// We mean it.
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//
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#include <QtGui/QOpenGLContext>
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#if defined(Q_OS_WIN) && !defined(Q_OS_WINRT) && (defined(QT_OPENGL_ES_2) || defined(QT_OPENGL_DYNAMIC))
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#include <EGL/egl.h>
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#endif
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QT_BEGIN_NAMESPACE
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class QMediaOpenGLHelper
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{
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public:
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static bool isANGLE();
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};
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inline bool QMediaOpenGLHelper::isANGLE()
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{
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#ifdef Q_OS_WINRT
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return true;
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#else
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bool isANGLE = false;
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# if defined(Q_OS_WIN) && !defined(Q_OS_WINCE) && (defined(QT_OPENGL_ES_2) || defined(QT_OPENGL_DYNAMIC))
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if (QOpenGLContext::openGLModuleType() == QOpenGLContext::LibGLES) {
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// Although unlikely, technically LibGLES could mean a non-ANGLE EGL/GLES2 implementation too.
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// Verify that it is indeed ANGLE.
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# ifdef QT_OPENGL_ES_2_ANGLE_STATIC
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// ANGLE linked-in statically.
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isANGLE = true;
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# else
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// Qt configured with either -opengl es2 or -opengl desktop.
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# ifdef QT_DEBUG
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HMODULE eglHandle = LoadLibraryW(L"libEGLd.dll");
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# else
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HMODULE eglHandle = LoadLibraryW(L"libEGL.dll");
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# endif // QT_DEBUG
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if (eglHandle) {
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typedef EGLDisplay (EGLAPIENTRYP EglGetDisplay)(EGLNativeDisplayType display_id);
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typedef EGLBoolean (EGLAPIENTRYP EglInitialize)(EGLDisplay dpy, EGLint *major, EGLint *minor);
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typedef const char * (EGLAPIENTRYP EglQueryString)(EGLDisplay dpy, EGLint name);
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EglGetDisplay eglGetDisplay = (EglGetDisplay) GetProcAddress(eglHandle, "eglGetDisplay");
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EglInitialize eglInitialize = (EglInitialize) GetProcAddress(eglHandle, "eglInitialize");
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EglQueryString eglQueryString = (EglQueryString) GetProcAddress(eglHandle, "eglQueryString");
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if (eglGetDisplay && eglInitialize && eglQueryString) {
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// EGL may not be initialized at this stage.
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EGLDisplay dpy = eglGetDisplay(EGL_DEFAULT_DISPLAY);
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eglInitialize(dpy, 0, 0);
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const char *vendorStr = eglQueryString(dpy, EGL_VERSION);
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isANGLE = vendorStr && strstr(vendorStr, "ANGLE");
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}
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}
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# endif // QT_OPENGL_ES_2_ANGLE_STATIC
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}
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# endif // Q_OS_WIN && !Q_OS_WINCE && (QT_OPENGL_ES_2 || QT_OPENGL_DYNAMIC)
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return isANGLE;
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#endif // Q_OS_WINRT
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}
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QT_END_NAMESPACE
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#endif
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