From 24afb1097d6257063786a9e36b92e85adfa8ed74 Mon Sep 17 00:00:00 2001
From: Girish Ramakrishnan <girish.1.ramakrishnan@nokia.com>
Date: Fri, 16 Mar 2012 16:52:39 -0700
Subject: eglfs: Introduce hooks for the eglfs plugin
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EGL provides an api to create a rendering context for khronos APIs
on native surfaces. The board initialization and window creation
is platform specific.

This commit adds platform hooks/extensions to the EGLFS plugin and
implements them for the Amlogic 8726M. The hook interface is internal
and there are no ABI/API guarantees.

EGLFS is now linked with -Wl,-no-undefined to make sure that a hook does not
add unresolvable symbols.

Change-Id: I7f4fcdb422aacbf00de468f4d8e85ae5368bfacf
Reviewed-by: Girish Ramakrishnan <girish.1.ramakrishnan@nokia.com>
Reviewed-by: Samuel Rødal <samuel.rodal@nokia.com>
---
 .../qeglfs_hooks_8726m.cpp                         | 95 ++++++++++++++++++++++
 .../devices/linux-arm-amlogic-8726M-g++/qmake.conf |  2 +
 2 files changed, 97 insertions(+)
 create mode 100644 mkspecs/devices/linux-arm-amlogic-8726M-g++/qeglfs_hooks_8726m.cpp

(limited to 'mkspecs')

diff --git a/mkspecs/devices/linux-arm-amlogic-8726M-g++/qeglfs_hooks_8726m.cpp b/mkspecs/devices/linux-arm-amlogic-8726M-g++/qeglfs_hooks_8726m.cpp
new file mode 100644
index 0000000000..06cb424e4f
--- /dev/null
+++ b/mkspecs/devices/linux-arm-amlogic-8726M-g++/qeglfs_hooks_8726m.cpp
@@ -0,0 +1,95 @@
+/****************************************************************************
+**
+** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/
+**
+** This file is part of the qmake spec 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 "qeglfs_hooks.h"
+#include <EGL/fbdev_window.h>
+#include <stdio.h>
+#include <sys/ioctl.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <linux/fb.h>
+
+void QEglFSHooks::platformInit()
+{
+}
+
+void QEglFSHooks::platformDestroy()
+{
+}
+
+EGLNativeDisplayType QEglFSHooks::platformDisplay() const
+{
+    return EGL_DEFAULT_DISPLAY;
+}
+
+QSize QEglFSHooks::screenSize() const
+{
+    int fd = open("/dev/fb0", O_RDONLY);
+    if (fd == -1) {
+        qFatal("Failed to open fb to detect screen resolution!");
+    }
+
+    struct fb_var_screeninfo vinfo;
+    if (ioctl(fd, FBIOGET_VSCREENINFO, &vinfo) == -1) {
+        qFatal("Could not get variable screen info");
+    }
+
+    close(fd);
+
+    return QSize(vinfo.xres, vinfo.yres);
+}
+
+EGLNativeWindowType QEglFSHooks::createNativeWindow(const QSize &size)
+{
+    fbdev_window *window = new fbdev_window;
+    window->width = size.width();
+    window->height = size.height();
+
+    return window;
+}
+
+void QEglFSHooks::destroyNativeWindow(EGLNativeWindowType window)
+{
+    delete window;
+}
+
+QEglFSHooks platform_hooks;
diff --git a/mkspecs/devices/linux-arm-amlogic-8726M-g++/qmake.conf b/mkspecs/devices/linux-arm-amlogic-8726M-g++/qmake.conf
index e57b2e7ed7..b0b02f32e6 100644
--- a/mkspecs/devices/linux-arm-amlogic-8726M-g++/qmake.conf
+++ b/mkspecs/devices/linux-arm-amlogic-8726M-g++/qmake.conf
@@ -31,4 +31,6 @@ QMAKE_CXXFLAGS_RELEASE  += $$QMAKE_CFLAGS_RELEASE
 
 deviceSanityCheckCompiler()
 
+EGLFS_PLATFORM_HOOKS_SOURCES = $$PWD/qeglfs_hooks_8726m.cpp
+
 load(qt_config)
-- 
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