1 files changed, 154 insertions, 0 deletions
diff --git a/src/plugins/platforms/xcb/qglxintegration.cpp b/src/plugins/platforms/xcb/qglxintegration.cpp
new file mode 100644
index 0000000000..190221c5f4
--- /dev/null
+++ b/src/plugins/platforms/xcb/qglxintegration.cpp
@@ -0,0 +1,154 @@
+/****************************************************************************
+**
+** 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.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** 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, 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.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QDebug>
+#include <QLibrary>
+#include <QGLFormat>
+
+#include "qxcbwindow.h"
+#include "qxcbscreen.h"
+
+#include <X11/Xlib.h>
+#include <X11/Xutil.h>
+#include <GL/glx.h>
+
+#include "qglxintegration.h"
+#include "qglxconvenience.h"
+
+#if defined(Q_OS_LINUX) || defined(Q_OS_BSD4)
+#include <dlfcn.h>
+#endif
+
+QGLXContext::QGLXContext(Window window, QXcbScreen *screen, const QPlatformWindowFormat &format)
+    : QPlatformGLContext()
+    , m_screen(screen)
+    , m_drawable((Drawable)window)
+    , m_context(0)
+{
+    Q_XCB_NOOP(m_screen->connection());
+    const QPlatformGLContext *sharePlatformContext;
+    sharePlatformContext = format.sharedGLContext();
+    GLXContext shareGlxContext = 0;
+    if (sharePlatformContext)
+        shareGlxContext = static_cast<const QGLXContext*>(sharePlatformContext)->glxContext();
+
+    GLXFBConfig config = qglx_findConfig(DISPLAY_FROM_XCB(screen),screen->screenNumber(),format);
+    m_context = glXCreateNewContext(DISPLAY_FROM_XCB(screen), config, GLX_RGBA_TYPE, shareGlxContext, TRUE);
+    m_windowFormat = qglx_platformWindowFromGLXFBConfig(DISPLAY_FROM_XCB(screen), config, m_context);
+    Q_XCB_NOOP(m_screen->connection());
+}
+
+QGLXContext::QGLXContext(QXcbScreen *screen, Drawable drawable, GLXContext context)
+    : QPlatformGLContext(), m_screen(screen), m_drawable(drawable), m_context(context)
+{
+
+}
+
+QGLXContext::~QGLXContext()
+{
+    Q_XCB_NOOP(m_screen->connection());
+    if (m_context)
+        glXDestroyContext(DISPLAY_FROM_XCB(m_screen), m_context);
+    Q_XCB_NOOP(m_screen->connection());
+}
+
+void QGLXContext::makeCurrent()
+{
+    Q_XCB_NOOP(m_screen->connection());
+    QPlatformGLContext::makeCurrent();
+    glXMakeCurrent(DISPLAY_FROM_XCB(m_screen), m_drawable, m_context);
+    Q_XCB_NOOP(m_screen->connection());
+}
+
+void QGLXContext::doneCurrent()
+{
+    Q_XCB_NOOP(m_screen->connection());
+    QPlatformGLContext::doneCurrent();
+    glXMakeCurrent(DISPLAY_FROM_XCB(m_screen), 0, 0);
+    Q_XCB_NOOP(m_screen->connection());
+}
+
+void QGLXContext::swapBuffers()
+{
+    Q_XCB_NOOP(m_screen->connection());
+    glXSwapBuffers(DISPLAY_FROM_XCB(m_screen), m_drawable);
+    doneCurrent();
+    Q_XCB_NOOP(m_screen->connection());
+}
+
+void* QGLXContext::getProcAddress(const QString& procName)
+{
+    Q_XCB_NOOP(m_screen->connection());
+    typedef void *(*qt_glXGetProcAddressARB)(const GLubyte *);
+    static qt_glXGetProcAddressARB glXGetProcAddressARB = 0;
+    static bool resolved = false;
+
+    if (resolved && !glXGetProcAddressARB)
+        return 0;
+    if (!glXGetProcAddressARB) {
+        QList<QByteArray> glxExt = QByteArray(glXGetClientString(DISPLAY_FROM_XCB(m_screen), GLX_EXTENSIONS)).split(' ');
+        if (glxExt.contains("GLX_ARB_get_proc_address")) {
+#if defined(Q_OS_LINUX) || defined(Q_OS_BSD4)
+            void *handle = dlopen(NULL, RTLD_LAZY);
+            if (handle) {
+                glXGetProcAddressARB = (qt_glXGetProcAddressARB) dlsym(handle, "glXGetProcAddressARB");
+                dlclose(handle);
+            }
+            if (!glXGetProcAddressARB)
+#endif
+            {
+                extern const QString qt_gl_library_name();
+//                QLibrary lib(qt_gl_library_name());
+                QLibrary lib(QLatin1String("GL"));
+                glXGetProcAddressARB = (qt_glXGetProcAddressARB) lib.resolve("glXGetProcAddressARB");
+            }
+        }
+        resolved = true;
+    }
+    if (!glXGetProcAddressARB)
+        return 0;
+    return glXGetProcAddressARB(reinterpret_cast<const GLubyte *>(procName.toLatin1().data()));
+}
+
+QPlatformWindowFormat QGLXContext::platformWindowFormat() const
+{
+    return m_windowFormat;
+}