Add server buffer integration using Linux dma-buf

Fixes: QTBUG-70494
Change-Id: Iaa4990fe9d39a1f9fb81f5e5f19039aa2e52dcac
Reviewed-by: Johan Helsing <johan.helsing@qt.io>

1 files changed, 60 insertions, 0 deletions

diff --git a/src/extensions/qt-dmabuf-server-buffer.xml b/src/extensions/qt-dmabuf-server-buffer.xml
new file mode 100644
index 000000000..6b1d426fc
--- /dev/null
+++ b/src/extensions/qt-dmabuf-server-buffer.xml
@@ -0,0 +1,60 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<protocol name="qt_dmabuf_server_buffer">
+    <copyright>
+ Copyright (C) 2018 The Qt Company Ltd.
+ Contact: http://www.qt.io/licensing/
+
+ This file is part of the plugins of the Qt Toolkit.
+
+ $QT_BEGIN_LICENSE:BSD$
+ You may use this file under the terms of the BSD license as follows:
+
+ "Redistribution and use in source and binary forms, with or without
+ modification, are permitted provided that the following conditions are
+ met:
+   * Redistributions of source code must retain the above copyright
+     notice, this list of conditions and the following disclaimer.
+   * Redistributions in binary form must reproduce the above copyright
+     notice, this list of conditions and the following disclaimer in
+     the documentation and/or other materials provided with the
+     distribution.
+   * Neither the name of The Qt Company Ltd nor the names of its
+     contributors may be used to endorse or promote products derived
+     from this software without specific prior written permission.
+
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+
+ $QT_END_LICENSE$
+    </copyright>
+  <interface name="qt_dmabuf_server_buffer" version="1">
+    <description summary="internal protocol for buffer sharing">
+      This protocol is used internally by Qt for implementing the
+      qt_server_buffer extension on hardware that supports Linux dma-buf.
+
+      This protocol is not part of the Qt API.  It exists purely as an
+      implementation detail and may change from version to
+      version without notice, or even be removed.
+    </description>
+    <event name="server_buffer_created">
+      <arg name="id" type="new_id" interface="qt_server_buffer"/>
+      <arg name="fd" type="fd"/>
+      <arg name="width" type="int"/>
+      <arg name="height" type="int"/>
+      <arg name="stride" type="int"/>
+      <arg name="offset" type="int"/>
+      <arg name="fourcc_format" type="int"/>
+    </event>
+  </interface>
+</protocol>
+