dolphin/Source/Core/InputCommon/Src/SDL.h

//////////////////////////////////////////////////////////////////////////////////////////
// Project description
// ¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯
// Name: SDL Input 
// Description: Common SDL Input Functions
//
// Author: Falcon4ever (nJoy@falcon4ever.com, www.multigesture.net), JPeterson etc
// Copyright (C) 2003-2008 Dolphin Project.
//
//////////////////////////////////////////////////////////////////////////////////////////
//
// Licensetype: GNU General Public License (GPL)
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, version 2.0.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License 2.0 for more details.
//
// A copy of the GPL 2.0 should have been included with the program.
// If not, see http://www.gnu.org/licenses/
//
// Official SVN repository and contact information can be found at
// http://code.google.com/p/dolphin-emu/
//
//////////////////////////////////////////////////////////////////////////////////////////

#ifndef _SDL_h
#define _SDL_h

//////////////////////////////////////////////////////////////////////////////////////////
// Include
// ¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯
#include <iostream> // System
#include <vector>
#include <cmath>

#include <SDL.h> // Externals

#include "Common.h" // Common
////////////////////////////


namespace InputCommon
{

//////////////////////////////////////////////////////////////////////////////////////////
// Structures
/* ¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯
	CONTROLLER_STATE buttons (PadState) = 0 or 1
	CONTROLLER_MAPPING buttons (joystick) = 0 or 1, 2, 3, 4, a certain joypad button

	Please remember: The axis limit is hardcoded here, if you allow more axises (for
	example for analog A and B buttons) you must first incrase the size of the axis array
	size here
*/
struct CONTROLLER_STATE		// GC PAD INFO/STATE
{
	int buttons[8];			// Amount of buttons (A B X Y Z, L-Trigger R-Trigger Start) might need to change the triggers buttons
	int dpad;				// Automatic SDL D-Pad (8 directions + neutral)
	int dpad2[4];			// D-pad using buttons
	int axis[6];			// 2 x 2 Axes (Main & Sub)
	int halfpress;			// Halfpress... you know, like not fully pressed ;)...
	SDL_Joystick *joy;		// SDL joystick device
};

struct CONTROLLER_MAPPING	// GC PAD MAPPING
{
	int buttons[8];			// (See above)
	int dpad;				// (See above)
	int dpad2[4];			// (See above)
	int axis[6];			// (See above)
	int halfpress;			// (See above)
	int enabled;			// Pad attached?
	int deadzone;			// Deadzone... what else?
	int ID;					// SDL joystick device ID
	int controllertype;		// Hat: Hat or custom buttons
	int triggertype;		// Triggers range
	std::string SDiagonal;
	bool bSquareToCircle;
	int eventnum;			// Linux Event Number, Can't be found dynamically yet
};

struct CONTROLLER_INFO		// CONNECTED WINDOWS DEVICES INFO
{
	int NumAxes;			// Amount of Axes
	int NumButtons;			// Amount of Buttons
	int NumBalls;			// Amount of Balls
	int NumHats;			// Amount of Hats (POV)
	std::string Name;		// Joypad/stickname
	int ID;					// SDL joystick device ID
	bool Good;				// Pad is good (it has at least one button or axis)
	SDL_Joystick *joy;		// SDL joystick device
};
enum
{
	// CTL_L_SHOULDER and CTL_R_SHOULDER = 0 and 1
	CTL_MAIN_X = 2,
	CTL_MAIN_Y,
	CTL_SUB_X,
	CTL_SUB_Y
};

enum
{
	CTL_L_SHOULDER = 0,
	CTL_R_SHOULDER,
	CTL_A_BUTTON,
	CTL_B_BUTTON,
	CTL_X_BUTTON,
	CTL_Y_BUTTON,
	CTL_Z_TRIGGER,	
	CTL_START	
};
// DPad Type
enum
{
	CTL_DPAD_HAT = 0, // Automatically use the first hat that SDL finds
	CTL_DPAD_CUSTOM // Custom directional pad settings
};
// Trigger Type
enum
{
	CTL_TRIGGER_SDL = 0, // 
	CTL_TRIGGER_XINPUT // The XBox 360 pad
};
enum
{
	CTL_D_PAD_UP = 0,
	CTL_D_PAD_DOWN,
	CTL_D_PAD_LEFT,
	CTL_D_PAD_RIGHT
};
// Button type for the configuration
enum
{
	CTL_AXIS = 0,
	CTL_HAT,
	CTL_BUTTON,	
	CTL_KEY
};
// XInput buttons
enum
{
	XI_TRIGGER_L = 0,
	XI_TRIGGER_R
};
////////////////////////////


//////////////////////////////////////////////////////////////////////////////////////////
// Declarations
// ¯¯¯¯¯¯¯¯¯

// General functions
bool SearchDevices(std::vector<CONTROLLER_INFO> &_joyinfo, int &NumPads, int &NumGoodPads);
void GetJoyState(CONTROLLER_STATE &_PadState, CONTROLLER_MAPPING _PadMapping, int controller, int NumButtons);

// Value conversion
int Pad_Convert(int _val);
std::vector<int> Pad_Square_to_Circle(int _x, int _y, int _pad, CONTROLLER_MAPPING _PadMapping);

#ifndef _SDL_MAIN_

#endif
////////////////////////////


} // InputCommon


#endif // _SDL_h