From 4d803a3493d15fdf7374689b774d02662dbd43b3 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?J=C3=B8rgen=20Lind?= <jorgen.lind@nokia.com>
Date: Tue, 1 Mar 2011 10:11:36 +0100
Subject: Lighthouse: Xcb, implement native interface

---
 src/plugins/platforms/xcb/qxcbintegration.cpp     |  5 +++
 src/plugins/platforms/xcb/qxcbintegration.h       |  3 ++
 src/plugins/platforms/xcb/qxcbnativeinterface.cpp | 50 +++++++++++++++++++++++
 src/plugins/platforms/xcb/qxcbnativeinterface.h   | 20 +++++++++
 src/plugins/platforms/xcb/xcb.pro                 |  6 ++-
 5 files changed, 82 insertions(+), 2 deletions(-)
 create mode 100644 src/plugins/platforms/xcb/qxcbnativeinterface.cpp
 create mode 100644 src/plugins/platforms/xcb/qxcbnativeinterface.h

diff --git a/src/plugins/platforms/xcb/qxcbintegration.cpp b/src/plugins/platforms/xcb/qxcbintegration.cpp
index 7f6d4c5..b6df550 100644
--- a/src/plugins/platforms/xcb/qxcbintegration.cpp
+++ b/src/plugins/platforms/xcb/qxcbintegration.cpp
@@ -44,6 +44,7 @@
 #include "qxcbscreen.h"
 #include "qxcbwindow.h"
 #include "qxcbwindowsurface.h"
+#include "qxcbnativeinterface.h"
 
 #include <xcb/xcb.h>
 
@@ -64,6 +65,7 @@ QXcbIntegration::QXcbIntegration()
         m_screens << screen;
 
     m_fontDatabase = new QGenericUnixFontDatabase();
+    m_nativeInterface = new QXcbNativeInterface;
 }
 
 QXcbIntegration::~QXcbIntegration()
@@ -144,4 +146,7 @@ bool QXcbIntegration::hasOpenGL() const
     return false;
 }
 
+QPlatformNativeInterface * QXcbIntegration::nativeInterface() const
+{
+    return m_nativeInterface;
 }
diff --git a/src/plugins/platforms/xcb/qxcbintegration.h b/src/plugins/platforms/xcb/qxcbintegration.h
index 80f70fb..eab6949 100644
--- a/src/plugins/platforms/xcb/qxcbintegration.h
+++ b/src/plugins/platforms/xcb/qxcbintegration.h
@@ -67,11 +67,14 @@ public:
     QPlatformFontDatabase *fontDatabase() const;
     bool hasOpenGL() const;
 
+    QPlatformNativeInterface *nativeInterface()const;
+
 private:
     QList<QPlatformScreen *> m_screens;
     QXcbConnection *m_connection;
 
     QPlatformFontDatabase *m_fontDatabase;
+    QPlatformNativeInterface *m_nativeInterface;
 };
 
 QT_END_NAMESPACE
diff --git a/src/plugins/platforms/xcb/qxcbnativeinterface.cpp b/src/plugins/platforms/xcb/qxcbnativeinterface.cpp
new file mode 100644
index 0000000..859b6c3
--- /dev/null
+++ b/src/plugins/platforms/xcb/qxcbnativeinterface.cpp
@@ -0,0 +1,50 @@
+#include "qxcbnativeinterface.h"
+
+#include "qxcbscreen.h"
+
+#include <QtGui/private/qapplication_p.h>
+
+QXcbScreen *QXcbNativeInterface::screenForWidget(QWidget *widget)
+{
+    QXcbScreen *screen;
+    if (widget) {
+        screen = static_cast<QXcbScreen *>(QPlatformScreen::platformScreenForWidget(widget));
+    }else {
+        screen = static_cast<QXcbScreen *>(QApplicationPrivate::platformIntegration()->screens()[0]);
+    }
+    return screen;
+}
+
+void * QXcbNativeInterface::nativeDisplayForWidget(QWidget *widget)
+{
+#if defined(XCB_USE_XLIB)
+    QXcbScreen *screen = screenForWidget(widget);
+    return screen->connection()->xlib_display();
+#else
+    Q_UNUSED(widget);
+    return 0;
+#endif
+}
+
+void * QXcbNativeInterface::eglDisplayForWidget(QWidget *widget)
+{
+#if defined(XCB_USE_DRI2)
+    QXcbScreen *screen = screenForWidget(widget);
+    return screen->connection()->egl_display();
+#else
+    Q_UNUSED(widget)
+    return 0;
+#endif
+}
+
+void * QXcbNativeInterface::nativeConnectionForWidget(QWidget *widget)
+{
+    QXcbScreen *screen = screenForWidget(widget);
+    return screen->xcb_connection();
+}
+
+void * QXcbNativeInterface::nativeScreenForWidget(QWidget *widget)
+{
+    QXcbScreen *screen = screenForWidget(widget);
+    return screen->screen();
+}
diff --git a/src/plugins/platforms/xcb/qxcbnativeinterface.h b/src/plugins/platforms/xcb/qxcbnativeinterface.h
new file mode 100644
index 0000000..fb48833
--- /dev/null
+++ b/src/plugins/platforms/xcb/qxcbnativeinterface.h
@@ -0,0 +1,20 @@
+#ifndef QXCBNATIVEINTERFACE_H
+#define QXCBNATIVEINTERFACE_H
+
+#include <QtGui/QPlatformNativeInterface>
+
+class QWidget;
+class QXcbScreen;
+
+class QXcbNativeInterface : public QPlatformNativeInterface
+{
+    void * nativeDisplayForWidget(QWidget *widget);
+    void * eglDisplayForWidget(QWidget *widget);
+    void * nativeConnectionForWidget(QWidget *widget);
+    void * nativeScreenForWidget(QWidget *widget);
+
+private:
+    static QXcbScreen *screenForWidget(QWidget *widget);
+};
+
+#endif // QXCBNATIVEINTERFACE_H
diff --git a/src/plugins/platforms/xcb/xcb.pro b/src/plugins/platforms/xcb/xcb.pro
index 9a3f735..2237cee 100644
--- a/src/plugins/platforms/xcb/xcb.pro
+++ b/src/plugins/platforms/xcb/xcb.pro
@@ -10,7 +10,8 @@ SOURCES = \
         qxcbscreen.cpp \
         qxcbwindow.cpp \
         qxcbwindowsurface.cpp \
-        main.cpp
+        main.cpp \
+        qxcbnativeinterface.cpp
 
 HEADERS = \
         qxcbconnection.h \
@@ -19,7 +20,8 @@ HEADERS = \
         qxcbobject.h \
         qxcbscreen.h \
         qxcbwindow.h \
-        qxcbwindowsurface.h
+        qxcbwindowsurface.h \
+        qxcbnativeinterface.h
 
 contains(QT_CONFIG, opengl) {
     QT += opengl
-- 
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