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/* Copyright (c) 2012 The Chromium Authors. All rights reserved.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
/**
* This file defines the <code>PPB_Gamepad_Dev</code> interface, which
* provides access to gamepad devices.
*/
label Chrome {
M18 = 0.1
};
#inline c
#pragma pack(push, 1)
#endinl
/**
* The data for one gamepad device.
*/
struct PP_GamepadData_Dev {
/**
* Is there a gamepad connected at this index? If this is false, no other
* data in this structure is valid.
*/
char connected;
/**
* String identifier for the type of device/manufacturer.
*/
uint16_t[128] id;
/**
* Monotonically increasing value that is incremented when the data have
* been updated.
*/
uint64_t timestamp;
/**
* Number of valid elements in the |axes| array.
*/
uint32_t axes_length;
/**
* Normalized values for the axes, indices valid up to |axesLength|-1. Axis
* values range from -1..1, and are in order of "importance".
*/
float_t[16] axes;
/**
* Number of valid elements in the |buttons| array.
*/
uint32_t buttons_length;
/**
* Normalized values for the buttons, indices valid up to |buttonsLength|
* - 1. Button values range from 0..1, and are in order of importance.
*/
float_t[32] buttons;
};
/**
* The data for all gamepads connected to the system.
*/
struct PP_GamepadsData_Dev {
/**
* Number of valid elements in the |items| array.
*/
uint32_t length;
/**
* Data for an individual gamepad device connected to the system.
*/
PP_GamepadData_Dev[4] items;
};
#inline c
#pragma pack(pop)
#endinl
/**
* The <code>PPB_Gamepad_Dev</code> interface allows retrieving data from
* gamepad/joystick devices that are connected to the system.
*/
[version=0.1, macro="PPB_GAMEPAD_DEV_INTERFACE"]
interface PPB_Gamepad_Dev {
/**
* Samples the current state of the connected gamepads.
*/
void SampleGamepads(
[in] PP_Instance instance,
[out] PP_GamepadsData_Dev data);
};
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