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-<?xml version="1.0" encoding="UTF-8"?>
-<protocol name="gaming_input_unstable_v2">
-
- <copyright>
- Copyright 2016 The Chromium Authors.
-
- Permission is hereby granted, free of charge, to any person obtaining a
- copy of this software and associated documentation files (the "Software"),
- to deal in the Software without restriction, including without limitation
- the rights to use, copy, modify, merge, publish, distribute, sublicense,
- and/or sell copies of the Software, and to permit persons to whom the
- Software is furnished to do so, subject to the following conditions:
-
- The above copyright notice and this permission notice (including the next
- paragraph) shall be included in all copies or substantial portions of the
- Software.
-
- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
- DEALINGS IN THE SOFTWARE.
- </copyright>
-
- <interface name="zcr_gaming_input_v2" version="1">
- <description summary="extends wl_seat with gaming input devices">
- A global interface to provide gaming input devices for a given seat.
-
- Currently only gamepad devices are supported.
-
- Warning! The protocol described in this file is experimental and
- backward incompatible changes may be made. Backward compatible changes
- may be added together with the corresponding uinterface version bump.
- Backward incompatible changes are done by bumping the version number in
- the protocol and uinterface names and resetting the interface version.
- Once the protocol is to be declared stable, the 'z' prefix and the
- version number in the protocol and interface names are removed and the
- interface version number is reset.
- </description>
-
- <request name="get_gaming_seat">
- <description summary="get a gaming seat">
- Get a gaming seat object for a given seat. Gaming seat provides access
- to gaming devices
- </description>
- <arg name="gaming_seat" type="new_id" interface="zcr_gaming_seat_v2"/>
- <arg name="seat" type="object" interface="wl_seat"/>
- </request>
-
- <request name="destroy" type="destructor">
- <description summary="release the memory for the gaming input object">
- Destroy gaming_input object. Objects created from this object are
- unaffected and should be destroyed separately.
- </description>
- </request>
- </interface>
-
- <interface name="zcr_gaming_seat_v2" version="1">
- <description summary="controller object for all gaming devices of a seat">
- An object that provides access to all the gaming devices of a seat.
- When a gamepad is connected, the compositor will send gamepad_added event.
- </description>
-
- <request name="destroy" type="destructor">
- <description summary="release the memory for the gaming seat object">
- Destroy gaming_seat object. Objects created from this object are
- unaffected and should be destroyed separately.
- </description>
- </request>
-
- <event name="gamepad_added">
- <description summary="gamepad added event">
- Notification that there is gamepad connected at this seat.
- </description>
- <arg name="gamepad" type="new_id" interface="zcr_gamepad_v2" summary="new connected gamepad"/>
- </event>
- </interface>
-
- <interface name="zcr_gamepad_v2" version="1">
- <description summary="gamepad input device">
- The zcr_gamepad_v2 interface represents one or more gamepad input devices,
- which are reported as a normalized 'Standard Gamepad' as it is specified
- by the W3C Gamepad API at: https://w3c.github.io/gamepad/#remapping
- </description>
-
- <request name="destroy" type="destructor">
- <description summary="destroy gamepad object"/>
- </request>
-
- <event name="removed">
- <description summary="gamepad removed">
- Removed event is send when the gamepad is disconnected. The client should
- expect no more event and call destroy.
-
- This event cannot be used as destructor as requests (e.g. vibration) might
- be added to this interface.
- </description>
- </event>
-
- <event name="axis">
- <description summary="axis change event">
- Notification of axis change.
-
- The axis id specifies which axis has changed as defined by the W3C
- 'Standard Gamepad'.
-
- The value is calibrated and normalized to the -1 to 1 range.
- </description>
- <arg name="time" type="uint" summary="timestamp with millisecond granularity"/>
- <arg name="axis" type="uint" summary="axis that produced this event"/>
- <arg name="value" type="fixed" summary="new value of axis"/>
- </event>
-
- <enum name="button_state">
- <description summary="physical button state">
- Describes the physical state of a button that produced the button
- event.
- </description>
- <entry name="released" value="0" summary="the button is not pressed"/>
- <entry name="pressed" value="1" summary="the button is pressed"/>
- </enum>
-
- <event name="button">
- <description summary="Gamepad button changed">
- Notification of button change.
-
- The button id specifies which button has changed as defined by the W3C
- 'Standard Gamepad'.
-
- A button can have a digital and an analog value. The analog value is
- normalized to a 0 to 1 range.
- If a button does not provide an analog value, it will be derived from
- the digital state.
- </description>
- <arg name="time" type="uint" summary="timestamp with millisecond granularity"/>
- <arg name="button" type="uint" summary="id of button"/>
- <arg name="state" type="uint" enum="button_state" summary="digital state of the button"/>
- <arg name="analog" type="fixed" summary="analog value of the button"/>
- </event>
-
- <event name="frame">
- <description summary="Notifies end of a series of gamepad changes.">
- Indicates the end of a set of events that logically belong together.
- A client is expected to accumulate the data in all events within the
- frame before proceeding.
- </description>
- <arg name="time" type="uint" summary="timestamp with millisecond granularity"/>
- </event>
- </interface>
-</protocol>