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245 lines
11 KiB
245 lines
11 KiB
4 months ago
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<?xml version="1.0" encoding="UTF-8"?>
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<protocol name="gaming_input_unstable_v2">
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<copyright>
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Copyright 2016 The Chromium Authors.
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Permission is hereby granted, free of charge, to any person obtaining a
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copy of this software and associated documentation files (the "Software"),
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to deal in the Software without restriction, including without limitation
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the rights to use, copy, modify, merge, publish, distribute, sublicense,
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and/or sell copies of the Software, and to permit persons to whom the
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Software is furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice (including the next
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paragraph) shall be included in all copies or substantial portions of the
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Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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DEALINGS IN THE SOFTWARE.
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</copyright>
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<interface name="zcr_gaming_input_v2" version="2">
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<description summary="extends wl_seat with gaming input devices">
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A global interface to provide gaming input devices for a given seat.
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Currently only gamepad devices are supported.
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Warning! The protocol described in this file is experimental and
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backward incompatible changes may be made. Backward compatible changes
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may be added together with the corresponding uinterface version bump.
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Backward incompatible changes are done by bumping the version number in
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the protocol and uinterface names and resetting the interface version.
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Once the protocol is to be declared stable, the 'z' prefix and the
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version number in the protocol and interface names are removed and the
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interface version number is reset.
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</description>
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<request name="get_gaming_seat">
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<description summary="get a gaming seat">
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Get a gaming seat object for a given seat. Gaming seat provides access
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to gaming devices
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</description>
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<arg name="gaming_seat" type="new_id" interface="zcr_gaming_seat_v2"/>
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<arg name="seat" type="object" interface="wl_seat"/>
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</request>
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<request name="destroy" type="destructor">
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<description summary="release the memory for the gaming input object">
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Destroy gaming_input object. Objects created from this object are
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unaffected and should be destroyed separately.
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</description>
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</request>
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</interface>
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<interface name="zcr_gaming_seat_v2" version="1">
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<description summary="controller object for all gaming devices of a seat">
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An object that provides access to all the gaming devices of a seat.
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When a gamepad is connected, the compositor will send gamepad_added event.
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</description>
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<request name="destroy" type="destructor">
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<description summary="release the memory for the gaming seat object">
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Destroy gaming_seat object. Objects created from this object are
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unaffected and should be destroyed separately.
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</description>
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</request>
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<event name="gamepad_added">
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<description summary="gamepad added event">
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Notification that there is gamepad connected at this seat.
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</description>
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<arg name="gamepad" type="new_id" interface="zcr_gamepad_v2" summary="new connected gamepad"/>
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</event>
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<enum name="bus_type">
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<description summary="gamepad device bus type">
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Device connection type e.g. Bluetooth
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</description>
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<entry name="usb" value="0" summary="Universal Serial Bus" />
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<entry name="bluetooth" value="1" summary="Bluetooth" />
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</enum>
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<event name="gamepad_added_with_device_info">
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<description summary="gamepad added event">
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Notification that there is gamepad connected at this seat.
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</description>
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<arg name="gamepad" type="new_id" interface="zcr_gamepad_v2" summary="new connected gamepad"/>
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<arg name="name" type="string" summary="name of the gamepad device" />
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<arg name="bus" type="uint" enum="bus_type" summary="type of the device connection e.g. Bluetooth" />
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<arg name="vendor_id" type="uint" summary="vendor ID of the gamepad device" />
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<arg name="product_id" type="uint" summary="product ID of the gamepad device" />
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<arg name="version" type="uint" summary="product version of the gamepad device" />
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</event>
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</interface>
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<interface name="zcr_gamepad_v2" version="2">
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<description summary="gamepad input device">
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The zcr_gamepad_v2 interface represents one or more gamepad input devices,
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which are reported as a normalized 'Standard Gamepad' as it is specified
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by the W3C Gamepad API at: https://w3c.github.io/gamepad/#remapping
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</description>
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<request name="destroy" type="destructor">
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<description summary="destroy gamepad">
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Destroy gamepad. Instances created from this gamepad are unaffected
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and should be destroyed separately.
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</description>
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</request>
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<event name="removed">
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<description summary="gamepad removed">
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Removed event is send when the gamepad is disconnected. The client should
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expect no more event and call destroy.
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This event cannot be used as destructor as requests (e.g. vibration) might
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be added to this interface.
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</description>
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</event>
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<event name="axis">
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<description summary="axis change event">
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Notification of axis change.
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The axis id specifies which axis has changed as defined by the W3C
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'Standard Gamepad'.
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The value is calibrated and normalized to the -1 to 1 range.
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</description>
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<arg name="time" type="uint" summary="timestamp with millisecond granularity"/>
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<arg name="axis" type="uint" summary="axis that produced this event"/>
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<arg name="value" type="fixed" summary="new value of axis"/>
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</event>
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<enum name="button_state">
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<description summary="physical button state">
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Describes the physical state of a button that produced the button
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event.
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</description>
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<entry name="released" value="0" summary="the button is not pressed"/>
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<entry name="pressed" value="1" summary="the button is pressed"/>
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</enum>
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<event name="button">
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<description summary="Gamepad button changed">
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Notification of button change.
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The button id specifies which button has changed as defined by the W3C
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'Standard Gamepad'.
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A button can have a digital and an analog value. The analog value is
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normalized to a 0 to 1 range.
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If a button does not provide an analog value, it will be derived from
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the digital state.
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</description>
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<arg name="time" type="uint" summary="timestamp with millisecond granularity"/>
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<arg name="button" type="uint" summary="id of button"/>
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<arg name="state" type="uint" enum="button_state" summary="digital state of the button"/>
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<arg name="analog" type="fixed" summary="analog value of the button"/>
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</event>
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<event name="frame">
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<description summary="Notifies end of a series of gamepad changes.">
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Indicates the end of a set of events that logically belong together.
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A client is expected to accumulate the data in all events within the
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frame before proceeding.
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</description>
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<arg name="time" type="uint" summary="timestamp with millisecond granularity"/>
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</event>
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<event name="axis_added">
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<description summary="an axis is added">
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Adds an axis to the gamepad. Only called when the gamepad was created by
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gamepad_added_with_device_info. The values are compatible with
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input_absinfo.
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</description>
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<arg name="index" type="uint" summary="An index of the axis" />
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<arg name="min_value" type="int" summary="minimum value of the axis" />
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<arg name="max_value" type="int" summary="maximum value of the axis" />
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<arg name="flat" type="int" summary="input within this value are ignored" />
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<arg name="fuzz" type="int" summary="used to filter noise" />
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<arg name="resolution" type="int" summary="resolution of input in units per millimeter, or units per radian for rotational axes." />
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</event>
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<event name="activated">
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<description summary="Gamepad activated">
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Activates the gamepad i.e. the gamepad will be visible to applications
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after this event is fired. All axis_added events should be sent before
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this event. Only called when the gamepad was created by
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gamepad_added_with_device_info.
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</description>
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</event>
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<!-- added since v2 -->
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<event name="vibrator_added" since="2">
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<description summary="a vibrator is added">
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Adds a vibrator to the gamepad. Only called if server has verified
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that gamepad has a vibrator. The vibrator(s) for a gamepad are expected
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to be added before the "activated" event is called.
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</description>
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<arg name="vibrator" type="new_id" interface="zcr_gamepad_vibrator_v2" summary="the gamepad vibrator"/>
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</event>
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</interface>
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<interface name="zcr_gamepad_vibrator_v2" version="2">
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<description summary="vibrator interface for a gamepad">
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An interface that provides access to the vibrator of a gamepad. Requests can be
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sent to make the gamepad vibrate and to stop an ongoing vibration.
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</description>
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<request name="vibrate" since="2">
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<description summary="triggers the vibration event">
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Triggers the vibration event on the gamepad vibrator. The gamepad is only allowed to
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vibrate while the window is in focus. The values in the timings array are 64-bit integers
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and the values in the amplitudes array are unsigned 8-bit integers.
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The timings array and the amplitudes array are of the same length.
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For each timing/amplitude pair, the amplitude determines the strength of
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the vibration and the timing determines the length of the vibration in milliseconds.
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Amplitude values must be between 0 and 255. An amplitude of 0 implies no vibration
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and any timing/amplitude pair with a timing value of 0 is ignored.
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The repeat argument determines the index at which the vibration pattern to repeat begins.
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A repeat value of -1 disables repetition. If repetition is enabled, the vibration
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pattern will repeat indefinitely until stopped, or when focus is lost.
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</description>
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<arg name="timings" type="array" summary="array of timing values" />
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<arg name="amplitudes" type="array" summary="array of amplitude values" />
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<arg name="repeat" type="int" summary="index into the timings array at which to repeat" />
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</request>
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<request name="cancel_vibration" since="2">
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<description summary="cancels the existing vibration event">
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Cancels the currently ongoing vibration event on the gamepad vibrator.
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</description>
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</request>
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<request name="destroy" type="destructor" since="2">
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<description summary="destroy gamepad vibrator"/>
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</request>
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</interface>
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</protocol>
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