1 files changed, 197 insertions, 0 deletions
diff --git a/src/plugins/platforms/directfb/qdirectfb_egl.cpp b/src/plugins/platforms/directfb/qdirectfb_egl.cpp
new file mode 100644
index 0000000000..399e90a9fb
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+++ b/src/plugins/platforms/directfb/qdirectfb_egl.cpp
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+/****************************************************************************
+**
+** 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 "qdirectfb_egl.h"
+#include "qdirectfbwindow.h"
+#include "qdirectfbscreen.h"
+
+#include <QtGui/QOpenGLContext>
+#include <QtGui/QPlatformOpenGLContext>
+#include <QtGui/QScreen>
+
+#include <QtPlatformSupport/private/qeglplatformcontext_p.h>
+
+#include <EGL/egl.h>
+
+QT_BEGIN_NAMESPACE
+
+/**
+ * This provides OpenGL ES 2.0 integration with DirectFB. It assumes that
+ * one can adapt a DirectFBSurface as a EGLSurface. It might need some vendor
+ * init code in the QDirectFbScreenEGL class to initialize EGL and one might
+ * need to provide a custom QDirectFbWindowEGL::format() to return the
+ * QSurfaceFormat used by the device.
+ */
+
+class QDirectFbScreenEGL : public QDirectFbScreen {
+public:
+    QDirectFbScreenEGL(int display);
+    ~QDirectFbScreenEGL();
+
+    // EGL helper
+    EGLDisplay eglDisplay();
+
+private:
+    void initializeEGL();
+    void platformInit();
+    void platformDestroy();
+
+private:
+    EGLDisplay m_eglDisplay;
+};
+
+class QDirectFbWindowEGL : public QDirectFbWindow {
+public:
+    QDirectFbWindowEGL(QWindow *tlw, QDirectFbInput *inputhandler);
+    ~QDirectFbWindowEGL();
+
+    // EGL. Subclass it instead to have different GL integrations?
+    EGLSurface eglSurface();
+
+    QSurfaceFormat format() const;
+
+private:
+    EGLSurface m_eglSurface;
+};
+
+class QDirectFbEGLContext : public QEGLPlatformContext {
+public:
+    QDirectFbEGLContext(QDirectFbScreenEGL *screen, QOpenGLContext *context);
+
+protected:
+    EGLSurface eglSurfaceForPlatformSurface(QPlatformSurface *surface);
+
+private:
+    QDirectFbScreen *m_screen;
+};
+
+QDirectFbScreenEGL::QDirectFbScreenEGL(int display)
+    : QDirectFbScreen(display)
+    , m_eglDisplay(EGL_NO_DISPLAY)
+{}
+
+QDirectFbScreenEGL::~QDirectFbScreenEGL()
+{
+    platformDestroy();
+}
+
+EGLDisplay QDirectFbScreenEGL::eglDisplay()
+{
+    if (m_eglDisplay == EGL_NO_DISPLAY)
+        initializeEGL();
+    return m_eglDisplay;
+}
+
+void QDirectFbScreenEGL::initializeEGL()
+{
+    m_eglDisplay = eglGetDisplay(EGL_DEFAULT_DISPLAY);
+    if (m_eglDisplay == EGL_NO_DISPLAY)
+        return;
+
+    platformInit();
+
+    EGLint major, minor;
+    eglBindAPI(EGL_OPENGL_ES_API);
+    eglInitialize(m_eglDisplay, &major, &minor);
+    return;
+}
+
+void QDirectFbScreenEGL::platformInit()
+{
+    // Place vendor init code here.
+}
+
+void QDirectFbScreenEGL::platformDestroy()
+{
+    // Place vendor finalize code here.
+}
+
+QDirectFbWindowEGL::QDirectFbWindowEGL(QWindow *tlw, QDirectFbInput *input)
+    : QDirectFbWindow(tlw, input)
+    , m_eglSurface(EGL_NO_SURFACE)
+{}
+
+QDirectFbWindowEGL::~QDirectFbWindowEGL()
+{
+    if (m_eglSurface != EGL_NO_SURFACE) {
+        QDirectFbScreenEGL *dfbScreen;
+        dfbScreen = static_cast<QDirectFbScreenEGL*>(screen());
+        eglDestroySurface(dfbScreen->eglDisplay(), m_eglSurface);
+    }
+}
+
+QSurfaceFormat QDirectFbWindowEGL::format() const
+{
+    return window()->requestedFormat();
+}
+
+
+QDirectFbEGLContext::QDirectFbEGLContext(QDirectFbScreenEGL *screen, QOpenGLContext *context)
+    : QEGLPlatformContext(context->format(), context->shareHandle(),
+                          screen->eglDisplay(), EGL_OPENGL_ES_API)
+    , m_screen(screen)
+{}
+
+EGLSurface QDirectFbEGLContext::eglSurfaceForPlatformSurface(QPlatformSurface *surface)
+{
+    QDirectFbWindowEGL *window = static_cast<QDirectFbWindowEGL*>(surface);
+    return window->eglSurface();
+}
+
+QPlatformWindow *QDirectFbIntegrationEGL::createPlatformWindow(QWindow *window) const
+{
+    return new QDirectFbWindowEGL(window, m_input.data());
+}
+
+QPlatformOpenGLContext *QDirectFbIntegrationEGL::createPlatformOpenGLContext(QOpenGLContext *context) const
+{
+    QDirectFbScreenEGL *screen;
+    screen = static_cast<QDirectFbScreenEGL*>(context->screen()->handle());
+    return new QDirectFbEGLContext(screen, context);
+}
+
+void QDirectFbIntegrationEGL::initializeScreen()
+{
+    m_primaryScreen.reset(new QDirectFbScreenEGL(0));
+    screenAdded(m_primaryScreen.data());
+}
+
+QT_END_NAMESPACE