1 files changed, 210 insertions, 0 deletions
diff --git a/src/plugins/platforms/testlite/qglxintegration.cpp b/src/plugins/platforms/testlite/qglxintegration.cpp
new file mode 100644
index 0000000..ba89dbd
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+++ b/src/plugins/platforms/testlite/qglxintegration.cpp
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+/****************************************************************************
+**
+** Copyright (C) 2009 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 "qtestlitewindow.h"
+
+#include <X11/Xlib.h>
+#include <X11/Xutil.h>
+#include <GL/glx.h>
+
+#include "qglxintegration.h"
+
+#if defined(Q_OS_LINUX) || defined(Q_OS_BSD4)
+#include <dlfcn.h>
+#endif
+
+QT_BEGIN_NAMESPACE
+
+GLXFBConfig qt_glx_integration_choose_config(MyDisplay* xd, QGLFormat& format, int drawableType)
+{
+    int depthSize = 0;
+    int stencilSize = 0;
+    int sampleSize = 0;
+
+    if (format.depth())
+        depthSize = (format.depthBufferSize() == -1) ? 1 : format.depthBufferSize();
+    if (format.stencil())
+        stencilSize = (format.stencilBufferSize() == -1) ? 1 : format.stencilBufferSize();
+    if (format.sampleBuffers())
+        sampleSize = (format.samples() == -1) ? 1 : format.samples();
+
+    int configAttribs[] = {
+        GLX_DRAWABLE_TYPE, drawableType,
+        GLX_LEVEL, format.plane(),
+        GLX_RENDER_TYPE, GLX_RGBA_BIT,
+        GLX_DOUBLEBUFFER, format.doubleBuffer() ? True : False,
+        GLX_STEREO, format.stereo() ? True : False,
+
+        GLX_DEPTH_SIZE, depthSize,
+        GLX_STENCIL_SIZE, stencilSize,
+        GLX_SAMPLE_BUFFERS_ARB, sampleSize,
+
+        GLX_RED_SIZE, (format.redBufferSize() == -1) ? 1 : format.redBufferSize(),
+        GLX_GREEN_SIZE, (format.greenBufferSize() == -1) ? 1 : format.greenBufferSize(),
+        GLX_BLUE_SIZE, (format.blueBufferSize() == -1) ? 1 : format.blueBufferSize(),
+        GLX_ALPHA_SIZE, (format.alphaBufferSize() == -1) ? 0 : format.alphaBufferSize(),
+
+        GLX_ACCUM_RED_SIZE, (format.accumBufferSize() == -1) ? 0 : format.accumBufferSize(),
+        GLX_ACCUM_GREEN_SIZE, (format.accumBufferSize() == -1) ? 0 : format.accumBufferSize(),
+        GLX_ACCUM_BLUE_SIZE, (format.accumBufferSize() == -1) ? 0 : format.accumBufferSize(),
+        GLX_ACCUM_ALPHA_SIZE, (format.accumBufferSize() == -1) ? 0 : format.accumBufferSize(),
+        XNone
+    };
+
+    GLXFBConfig *configs;
+    int configCount = 0;
+    configs = glXChooseFBConfig(xd->display, xd->screen, configAttribs, &configCount);
+
+    if (!configs)
+        return 0;
+
+    GLXFBConfig chosenConfig = 0;
+    for (int i = 0; i < configCount; ++i) {
+        chosenConfig = configs[i];
+
+        // Make sure we try to get an ARGB visual if the format asked for an alpha:
+        if (format.alpha()) {
+            XVisualInfo* vi;
+            vi = glXGetVisualFromFBConfig(xd->display, configs[i]);
+            if (!vi)
+                continue;
+
+            XRenderPictFormat *pictFormat = XRenderFindVisualFormat(xd->display, vi->visual);
+            XFree(vi);
+
+            if (pictFormat && (pictFormat->type == PictTypeDirect) && pictFormat->direct.alphaMask) {
+                // The pict format for the visual matching the FBConfig indicates ARGB
+                break;
+            }
+        } else
+            break; // Just choose the first in the list if there's no alpha requested
+    }
+
+    // TODO: Populate the QGLFormat with the values of the GLXFBConfig
+
+    XFree(configs);
+    return chosenConfig;
+}
+
+QGLXGLContext::QGLXGLContext(WId winId, MyDisplay *xd, QGLFormat& format, QPlatformGLContext* shareContext)
+    : QPlatformGLContext()
+    , m_xd(xd)
+    , m_drawable((Drawable)winId)
+    , m_config(0)
+    , m_context(0)
+{
+    GLXContext shareGlxContext = 0;
+    if (shareContext)
+        shareGlxContext = static_cast<QGLXGLContext*>(shareContext)->glxContext();
+
+    m_config = qt_glx_integration_choose_config(m_xd, format, GLX_WINDOW_BIT);
+
+    m_context = glXCreateNewContext(m_xd->display, m_config, GLX_RGBA_TYPE, shareGlxContext, True);
+#ifdef MYX11_DEBUG
+    qDebug() << "QGLXGLContext::create context" << m_context;
+#endif
+
+}
+
+QGLXGLContext::~QGLXGLContext()
+{
+    if (m_context) {
+        qDebug("Destroying GLX context 0x%x", m_context);
+        glXDestroyContext(m_xd->display, m_context);
+    }
+}
+
+void QGLXGLContext::makeCurrent()
+{
+#ifdef MYX11_DEBUG
+    qDebug("QGLXGLContext::makeCurrent(window=0x%x, ctx=0x%x)", m_drawable, m_context);
+#endif
+    glXMakeCurrent(m_xd->display, m_drawable, m_context);
+}
+
+void QGLXGLContext::doneCurrent()
+{
+    glXMakeCurrent(m_xd->display, 0, 0);
+}
+
+void QGLXGLContext::swapBuffers()
+{
+    glXSwapBuffers(m_xd->display, m_drawable);
+}
+
+void* QGLXGLContext::getProcAddress(const QString& procName)
+{
+    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(m_xd->display, 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()));
+}
+
+QT_END_NAMESPACE