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Factor out CGL code for reuse in wayland.

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This commit is contained in:
Morten Sorvig 2011-06-27 13:17:52 +02:00
parent 8e8ad987a2
commit 0058f00b64
5 changed files with 176 additions and 20 deletions
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105
src/platformsupport/cglconvenience/cglconvenience.mm Normal file
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@ -0,0 +1,105 @@
/****************************************************************************
**
** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the plugins of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** GNU Lesser General Public License Usage
** 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, Nokia gives you certain additional
** rights. These rights are described in the Nokia 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.
**
** Other Usage
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "cglconvenience_p.h"
#include <QtCore/private/qcore_mac_p.h>
#include <Cocoa/Cocoa.h>
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::fromAscii(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.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()
{
NSOpenGLPixelFormatAttribute attrs[] =
{
NSOpenGLPFADoubleBuffer,
NSOpenGLPFADepthSize, 32,
0
};
NSOpenGLPixelFormat* pixelFormat = [[NSOpenGLPixelFormat alloc] initWithAttributes:attrs];
return pixelFormat;
}
CGLContextObj qcgl_createGlContext()
{
CGLContextObj context;
NSOpenGLPixelFormat *format = reinterpret_cast<NSOpenGLPixelFormat *>(qcgl_createNSOpenGLPixelFormat());
CGLPixelFormatObj cglFormat = static_cast<CGLPixelFormatObj>([format CGLPixelFormatObj]);
CGLCreateContext(cglFormat ,NULL, &context);
return context;
}

11
src/platformsupport/cglconvenience/cglconvenience.pri Normal file
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@ -0,0 +1,11 @@
mac {
INCLUDEPATH += $$PWD
HEADERS += \
$$PWD/cglconvenience_p.h
OBJECTIVE_SOURCES += \
$$PWD/cglconvenience.mm
LIBS += -framework Cocoa -framework OpenGl
}

54
src/platformsupport/cglconvenience/cglconvenience_p.h Normal file
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@ -0,0 +1,54 @@
/****************************************************************************
**
** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the plugins of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** GNU Lesser General Public License Usage
** 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, Nokia gives you certain additional
** rights. These rights are described in the Nokia 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.
**
** Other Usage
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QMACGLCONVENIENCE_H
#define QMACGLCONVENIENCE_H
#include <QSurfaceFormat>
#include <QString>
#include <OpenGL/OpenGL.h>
Q_GUI_EXPORT void (*qcgl_getProcAddress(const QByteArray &procName))();
Q_GUI_EXPORT QSurfaceFormat qcgl_surfaceFormat();
Q_GUI_EXPORT void *qcgl_createNSOpenGLPixelFormat();
Q_GUI_EXPORT CGLContextObj qcgl_createGlContext();
#endif // QMACGLCONVENIENCE_H

1
src/platformsupport/platformsupport.pro
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@ -20,6 +20,7 @@ HEADERS += $$PWD/qtplatformsupportversion.h
DEFINES += QT_NO_CAST_FROM_ASCII
PRECOMPILED_HEADER = ../corelib/global/qt_pch.h
include(cglconvenience/cglconvenience.pri)
include(dnd/dnd.pri)
include(eglconvenience/eglconvenience.pri)
include(eventdispatchers/eventdispatchers.pri)

23
src/plugins/platforms/cocoa/qcocoaglcontext.mm
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@ -2,13 +2,14 @@
#include "qcocoawindow.h"
#include <qdebug.h>
#include <QtCore/private/qcore_mac_p.h>
#include <QtPlatformSupport/private/cglconvenience_p.h>
#import <Cocoa/Cocoa.h>
QCocoaGLContext::QCocoaGLContext(const QSurfaceFormat &format, QPlatformGLContext *share)
: m_format(format)
{
NSOpenGLPixelFormat *pixelFormat = createNSOpenGLPixelFormat();
NSOpenGLPixelFormat *pixelFormat = static_cast <NSOpenGLPixelFormat *>(qcgl_createNSOpenGLPixelFormat());
NSOpenGLContext *actualShare = share ? static_cast<QCocoaGLContext *>(share)->m_context : 0;
m_context = [NSOpenGLContext alloc];
@ -69,15 +70,7 @@ void QCocoaGLContext::doneCurrent()
void (*QCocoaGLContext::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::fromAscii(procName.constData()));
void *proc = CFBundleGetFunctionPointerForName(bundle, procNameCF);
CFRelease(url);
CFRelease(bundle);
CFRelease(procNameCF);
return (void (*) ())proc;
return qcgl_getProcAddress(procName);
}
void QCocoaGLContext::update()
@ -87,15 +80,7 @@ void QCocoaGLContext::update()
NSOpenGLPixelFormat *QCocoaGLContext::createNSOpenGLPixelFormat()
{
NSOpenGLPixelFormatAttribute attrs[] =
{
NSOpenGLPFADoubleBuffer,
NSOpenGLPFADepthSize, 32,
0
};
NSOpenGLPixelFormat* pixelFormat = [[NSOpenGLPixelFormat alloc] initWithAttributes:attrs];
return pixelFormat;
return static_cast<NSOpenGLPixelFormat *>(qcgl_createNSOpenGLPixelFormat());
}
NSOpenGLContext *QCocoaGLContext::nsOpenGLContext() const