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/****************************************************************************
**
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the plugins 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 Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/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 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "cglconvenience_p.h"
#include <QtCore/private/qcore_mac_p.h>
#include <Cocoa/Cocoa.h>
#include <QVector>
void (*qcgl_getProcAddress(const QByteArray &procName))()
{
CFURLRef url = CFURLCreateWithFileSystemPath(kCFAllocatorDefault,
CFSTR("/System/Library/Frameworks/OpenGL.framework"), kCFURLPOSIXPathStyle, false);
CFBundleRef bundle = CFBundleCreate(kCFAllocatorDefault, url);
CFStringRef procNameCF = QCFString::toCFStringRef(QString::fromLatin1(procName.constData()));
void *proc = CFBundleGetFunctionPointerForName(bundle, procNameCF);
CFRelease(url);
CFRelease(bundle);
CFRelease(procNameCF);
return (void (*) ())proc;
}
// Match up with createNSOpenGLPixelFormat below!
QSurfaceFormat qcgl_surfaceFormat()
{
QSurfaceFormat format;
format.setRenderableType(QSurfaceFormat::OpenGL);
format.setRedBufferSize(8);
format.setGreenBufferSize(8);
format.setBlueBufferSize(8);
format.setAlphaBufferSize(8);
/*
format.setDepthBufferSize(24);
format.setAccumBufferSize(0);
format.setStencilBufferSize(8);
format.setSampleBuffers(false);
format.setSamples(1);
format.setDepth(true);
format.setRgba(true);
format.setAlpha(true);
format.setAccum(false);
format.setStencil(true);
format.setStereo(false);
format.setDirectRendering(false);
*/
return format;
}
void *qcgl_createNSOpenGLPixelFormat(const QSurfaceFormat &format)
{
QVector<NSOpenGLPixelFormatAttribute> attrs;
if (format.swapBehavior() != QSurfaceFormat::SingleBuffer)
attrs.append(NSOpenGLPFADoubleBuffer);
#if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_7
if (QSysInfo::MacintoshVersion >= QSysInfo::MV_10_7) {
if (format.profile() == QSurfaceFormat::CoreProfile
&& ((format.majorVersion() == 3 && format.minorVersion() >= 2)
|| format.majorVersion() > 3)) {
attrs << NSOpenGLPFAOpenGLProfile;
attrs << NSOpenGLProfileVersion3_2Core;
} else {
attrs << NSOpenGLPFAOpenGLProfile;
attrs << NSOpenGLProfileVersionLegacy;
}
}
#else
if (format.profile() == QSurfaceFormat::CoreProfile)
qWarning("Mac OSX >= 10.7 is needed for OpenGL Core Profile support");
#endif
if (format.depthBufferSize() > 0)
attrs << NSOpenGLPFADepthSize << format.depthBufferSize();
if (format.stencilBufferSize() > 0)
attrs << NSOpenGLPFAStencilSize << format.stencilBufferSize();
if (format.alphaBufferSize() > 0)
attrs << NSOpenGLPFAAlphaSize << format.alphaBufferSize();
if (format.samples() > 0) {
attrs << NSOpenGLPFAMultisample
<< NSOpenGLPFASampleBuffers << (NSOpenGLPixelFormatAttribute) 1
<< NSOpenGLPFASamples << (NSOpenGLPixelFormatAttribute) format.samples();
}
attrs << 0;
NSOpenGLPixelFormat* pixelFormat = [[NSOpenGLPixelFormat alloc] initWithAttributes:attrs.constData()];
return pixelFormat;
}
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