/* 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.
*/
/* From ppb_gamepad.idl modified Tue Apr 16 09:04:34 2013. */
#ifndef PPAPI_C_PPB_GAMEPAD_H_
#define PPAPI_C_PPB_GAMEPAD_H_
#include "ppapi/c/pp_bool.h"
#include "ppapi/c/pp_instance.h"
#include "ppapi/c/pp_macros.h"
#include "ppapi/c/pp_stdint.h"
#define PPB_GAMEPAD_INTERFACE_1_0 "PPB_Gamepad;1.0"
#define PPB_GAMEPAD_INTERFACE PPB_GAMEPAD_INTERFACE_1_0
/**
* @file
* This file defines the <code>PPB_Gamepad</code> interface, which
* provides access to gamepad devices.
*/
/**
* @addtogroup Structs
* @{
*/
/**
* The data for one gamepad device.
*/
struct PP_GamepadSampleData {
/**
* Number of valid elements in the |axes| array.
*/
uint32_t axes_length;
/**
* Normalized values for the axes, indices valid up to |axes_length|-1. Axis
* values range from -1..1, and are in order of "importance".
*/
float axes[16];
/**
* Number of valid elements in the |buttons| array.
*/
uint32_t buttons_length;
/**
* Normalized values for the buttons, indices valid up to |buttons_length|
* - 1. Button values range from 0..1, and are in order of importance.
*/
float buttons[32];
/**
* Monotonically increasing value that is incremented when the data have
* been updated.
*/
double timestamp;
/**
* Identifier for the type of device/manufacturer.
*/
uint16_t id[128];
/**
* Is there a gamepad connected at this index? If this is false, no other
* data in this structure is valid.
*/
PP_Bool connected;
/* Padding to make the struct the same size between 64 and 32. */
char unused_pad_[4];
};
PP_COMPILE_ASSERT_STRUCT_SIZE_IN_BYTES(PP_GamepadSampleData, 472);
/**
* The data for all gamepads connected to the system.
*/
struct PP_GamepadsSampleData {
/**
* Number of valid elements in the |items| array.
*/
uint32_t length;
/* Padding to make the struct the same size between 64 and 32. */
char unused_pad_[4];
/**
* Data for an individual gamepad device connected to the system.
*/
struct PP_GamepadSampleData items[4];
};
PP_COMPILE_ASSERT_STRUCT_SIZE_IN_BYTES(PP_GamepadsSampleData, 1896);
/**
* @}
*/
/**
* @addtogroup Interfaces
* @{
*/
/**
* The <code>PPB_Gamepad</code> interface allows retrieving data from
* gamepad/joystick devices that are connected to the system.
*/
struct PPB_Gamepad_1_0 {
/**
* Samples the current state of the available gamepads.
*/
void (*Sample)(PP_Instance instance, struct PP_GamepadsSampleData* data);
};
typedef struct PPB_Gamepad_1_0 PPB_Gamepad;
/**
* @}
*/
#endif /* PPAPI_C_PPB_GAMEPAD_H_ */