eglfs: Move remaining sources to under api

Move platform integration, context and offscreensurface to under 'api'.
This allows accessing these from out-of-tree eglfs backends as well.

For instance, the upcoming eglfs_emu backend for the Qt Simulator may need
access to QEglFSIntegration.

Clean up the project files and remove out-of-date comments (the private
module QtEglFSDeviceIntegration is not really header-less since 5.7).

Change-Id: If96dd5780a6bd33a1cf29164364df9bf921c4d01
Reviewed-by: Andy Nichols <andy.nichols@qt.io>

1 files changed, 83 insertions, 0 deletions

diff --git a/src/plugins/platforms/eglfs/api/qeglfsoffscreenwindow.cpp b/src/plugins/platforms/eglfs/api/qeglfsoffscreenwindow.cpp
new file mode 100644
index 0000000000..7de5379ae3
--- /dev/null
+++ b/src/plugins/platforms/eglfs/api/qeglfsoffscreenwindow.cpp
@@ -0,0 +1,83 @@
+/****************************************************************************
+**
+** Copyright (C) 2016 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the plugins of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 3 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL3 included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 3 requirements
+** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 2.0 or (at your option) the GNU General
+** Public license version 3 or any later version approved by the KDE Free
+** Qt Foundation. The licenses are as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-2.0.html and
+** https://www.gnu.org/licenses/gpl-3.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qeglfsoffscreenwindow_p.h"
+#include "qeglfshooks_p.h"
+#include <QtGui/QOffscreenSurface>
+#include <QtPlatformSupport/private/qeglconvenience_p.h>
+
+QT_BEGIN_NAMESPACE
+
+/*
+    In some cases pbuffers are not available. Triggering QtGui's built-in
+    fallback for a hidden QWindow is not suitable for eglfs since this would be
+    treated as an attempt to create multiple top-level, native windows.
+
+    Therefore this class is provided as an alternative to QEGLPbuffer.
+
+    This class requires the hooks to implement createNativeOffscreenWindow().
+*/
+
+QEglFSOffscreenWindow::QEglFSOffscreenWindow(EGLDisplay display, const QSurfaceFormat &format, QOffscreenSurface *offscreenSurface)
+    : QPlatformOffscreenSurface(offscreenSurface)
+    , m_format(format)
+    , m_display(display)
+    , m_surface(EGL_NO_SURFACE)
+    , m_window(0)
+{
+    m_window = qt_egl_device_integration()->createNativeOffscreenWindow(format);
+    if (!m_window) {
+        qWarning("QEglFSOffscreenWindow: Failed to create native window");
+        return;
+    }
+    EGLConfig config = q_configFromGLFormat(m_display, m_format);
+    m_surface = eglCreateWindowSurface(m_display, config, m_window, 0);
+    if (m_surface != EGL_NO_SURFACE)
+        m_format = q_glFormatFromConfig(m_display, config);
+}
+
+QEglFSOffscreenWindow::~QEglFSOffscreenWindow()
+{
+    if (m_surface != EGL_NO_SURFACE)
+        eglDestroySurface(m_display, m_surface);
+    if (m_window)
+        qt_egl_device_integration()->destroyNativeWindow(m_window);
+}
+
+QT_END_NAMESPACE