Unified device controls. Both gtk and gtk-glade UIs uses this for joystick support.
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evilynux
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/* joysdl.c - this file is part of DeSmuME
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*
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* Copyright (C) 2007 Pascal Giard
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*
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* Author: Pascal Giard <evilynux@gmail.com>
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*
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* This file is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* This file is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#include "ctrlssdl.h"
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/* Initialize joysticks */
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BOOL init_joy(u16 joyCfg[]) {
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int i, nbJoysticks;
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/* Joystick configuration */
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memcpy(joypadCfg, joyCfg, sizeof(joypadCfg));
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if(SDL_InitSubSystem(SDL_INIT_JOYSTICK) == -1)
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{
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fprintf(stderr, "Error trying to initialize joystick support: %s\n",
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SDL_GetError());
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return FALSE;
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}
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nbJoysticks = SDL_NumJoysticks();
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printf("Nbr of joysticks: %d\n\n", nbJoysticks);
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for (i = 0; i < nbJoysticks; i++)
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{
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SDL_Joystick * joy = SDL_JoystickOpen(i);
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printf("Joystick %s\n", i, SDL_JoystickName(i));
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printf("Axes: %d\n", SDL_JoystickNumAxes(joy));
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printf("Buttons: %d\n", SDL_JoystickNumButtons(joy));
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printf("Trackballs: %d\n", SDL_JoystickNumBalls(joy));
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printf("Hats: %d\n\n", SDL_JoystickNumHats(joy));
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}
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}
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/* Unload joysticks */
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void uninit_joy()
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{
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/* FIXME: Should we Close all joysticks?
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SDL_JoystickClose( ... );
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*/
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SDL_QuitSubSystem(SDL_INIT_JOYSTICK);
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}
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u16 inline lookup_joykey (u16 keyval) {
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int i;
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u16 Key = 0;
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for(i = 0; i < NB_KEYS; i++)
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if(keyval == joypadCfg[i]) break;
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if(i < NB_KEYS)
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Key = KEYMASK_(i);
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printf("Lookup key %d from joypad...%x\n", keyval, Key);
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return Key;
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}
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/* Manage joystick events */
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u16 process_ctrls_events(u16 keypad)
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{
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u16 key;
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SDL_Event event;
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/* There's an event waiting to be processed? */
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while (SDL_PollEvent(&event))
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{
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switch (event.type)
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{
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/* Joystick axis motion */
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case SDL_JOYAXISMOTION:
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/* Horizontal */
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if (event.jaxis.axis == 0)
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if( event.jaxis.value == 0 )
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{
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key = lookup_joykey( 20 ) | lookup_joykey( 21 );
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RM_KEY( keypad, key );
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}
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else
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{
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if( event.jaxis.value > 0 ) key = lookup_joykey( 20 );
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else key = lookup_joykey( 21 );
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ADD_KEY( keypad, key );
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}
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/* Vertical */
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else if (event.jaxis.axis == 1)
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if( event.jaxis.value == 0 )
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{
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key = lookup_joykey( 22 ) | lookup_joykey( 23 );
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RM_KEY( keypad, key );
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}
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else
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{
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if( event.jaxis.value > 0 ) key = lookup_joykey( 23 );
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else key = lookup_joykey( 22 );
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ADD_KEY( keypad, key );
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}
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break;
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/* Joystick button pressed */
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/* FIXME: Add support for BOOST */
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case SDL_JOYBUTTONDOWN:
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key = lookup_joykey( event.jbutton.button );
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ADD_KEY( keypad, key );
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break;
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/* Joystick button released */
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case SDL_JOYBUTTONUP:
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key = lookup_joykey(event.jbutton.button);
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RM_KEY( keypad, key );
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break;
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/* When GTK is in use, the keyboard, mouse and quit events are handled by GTK. */
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#ifndef GTK
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case SDL_KEYDOWN:
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switch (event.key.keysym.sym)
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{
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case SDLK_UP: ADD_KEY( keypad, 0x40); break;
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case SDLK_DOWN: ADD_KEY( keypad, 0x80); break;
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case SDLK_RIGHT: ADD_KEY( keypad, 0x10); break;
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case SDLK_LEFT: ADD_KEY( keypad, 0x20); break;
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case SDLK_SPACE: ADD_KEY( keypad, 0x1); break;
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case 'b': ADD_KEY( keypad, 0x2); break;
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case SDLK_BACKSPACE:ADD_KEY( keypad, 0x4); break;
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case SDLK_RETURN: ADD_KEY( keypad, 0x8); break;
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case '0': ADD_KEY( keypad, 0x200); break;
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case '.': ADD_KEY( keypad, 0x100); break;
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}
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break;
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case SDL_KEYUP:
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switch (event.key.keysym.sym)
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{
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case SDLK_UP: RM_KEY( keypad, 0x40); break;
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case SDLK_DOWN: RM_KEY( keypad, 0x80); break;
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case SDLK_RIGHT: RM_KEY( keypad, 0x10); break;
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case SDLK_LEFT: RM_KEY( keypad, 0x20); break;
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case SDLK_SPACE: RM_KEY( keypad, 0x1); break;
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case 'b': RM_KEY( keypad, 0x2); break;
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case SDLK_BACKSPACE:RM_KEY( keypad, 0x4); break;
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case SDLK_RETURN: RM_KEY( keypad, 0x8); break;
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case '0': RM_KEY( keypad, 0x200); break;
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case '.': RM_KEY( keypad, 0x100); break;
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}
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break;
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#endif
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default:
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break;
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}
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}
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return keypad;
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}
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@ -0,0 +1,46 @@
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/* joysdl.h - this file is part of DeSmuME
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*
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* Copyright (C) 2007 Pascal Giard
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*
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* Author: Pascal Giard <evilynux@gmail.com>
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*
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* This file is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* This file is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifndef CTRLSSDL_H
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#define CTRLSSDL_H
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <pthread.h>
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#include <SDL/SDL.h>
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#include "types.h"
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#define NB_KEYS 14
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#define ADD_KEY(keypad,key) ( (keypad) |= (key) )
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#define RM_KEY(keypad,key) ( (keypad) &= ~(key) )
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#define KEYMASK_(k) (1 << k)
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u16 joypadCfg[NB_KEYS];
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BOOL init_joy(u16 joyCfg[]);
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void uninit_joy();
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u16 process_ctrls_events(u16 oldkeypad);
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#endif /* CTRLSSDL_H */
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