Factor out CGL code for reuse in wayland.

3 files changed, 170 insertions, 0 deletions

diff --git a/src/platformsupport/cglconvenience/cglconvenience.mm b/src/platformsupport/cglconvenience/cglconvenience.mm
new file mode 100644
index 0000000000..43d955e2b2
--- /dev/null
+++ b/src/platformsupport/cglconvenience/cglconvenience.mm
@@ -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;
+}
+
diff --git a/src/platformsupport/cglconvenience/cglconvenience.pri b/src/platformsupport/cglconvenience/cglconvenience.pri
new file mode 100644
index 0000000000..fef3b50ea3
--- /dev/null
+++ b/src/platformsupport/cglconvenience/cglconvenience.pri
@@ -0,0 +1,11 @@
+mac {
+    INCLUDEPATH += $$PWD
+
+    HEADERS += \
+        $$PWD/cglconvenience_p.h
+
+    OBJECTIVE_SOURCES += \
+        $$PWD/cglconvenience.mm
+
+    LIBS += -framework Cocoa -framework OpenGl
+}
diff --git a/src/platformsupport/cglconvenience/cglconvenience_p.h b/src/platformsupport/cglconvenience/cglconvenience_p.h
new file mode 100644
index 0000000000..f7426b4cc1
--- /dev/null
+++ b/src/platformsupport/cglconvenience/cglconvenience_p.h
@@ -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