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      1 /*
      2     SDL - Simple DirectMedia Layer
      3     Copyright (C) 1997-2012 Sam Lantinga
      4 
      5     This library is free software; you can redistribute it and/or
      6     modify it under the terms of the GNU Lesser General Public
      7     License as published by the Free Software Foundation; either
      8     version 2.1 of the License, or (at your option) any later version.
      9 
     10     This library is distributed in the hope that it will be useful,
     11     but WITHOUT ANY WARRANTY; without even the implied warranty of
     12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     13     Lesser General Public License for more details.
     14 
     15     You should have received a copy of the GNU Lesser General Public
     16     License along with this library; if not, write to the Free Software
     17     Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
     18 
     19     Sam Lantinga
     20     slouken (at) libsdl.org
     21 */
     22 #include "SDL_config.h"
     23 
     24 #include "SDL.h"
     25 #include "../../events/SDL_sysevents.h"
     26 #include "../../events/SDL_events_c.h"
     27 #include "SDL_dcvideo.h"
     28 #include "SDL_dcevents_c.h"
     29 
     30 #include <dc/maple.h>
     31 #include <dc/maple/mouse.h>
     32 #include <dc/maple/keyboard.h>
     33 
     34 const static unsigned short sdl_key[]= {
     35 	/*0*/	0, 0, 0, 0, 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i',
     36 		'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't',
     37 		'u', 'v', 'w', 'x', 'y', 'z',
     38 	/*1e*/	'1', '2', '3', '4', '5', '6', '7', '8', '9', '0',
     39 	/*28*/	SDLK_RETURN, SDLK_ESCAPE, SDLK_BACKSPACE, SDLK_TAB, SDLK_SPACE, SDLK_MINUS, SDLK_PLUS, SDLK_LEFTBRACKET,
     40 	SDLK_RIGHTBRACKET, SDLK_BACKSLASH , 0, SDLK_SEMICOLON, SDLK_QUOTE,
     41 	/*35*/	'~', SDLK_COMMA, SDLK_PERIOD, SDLK_SLASH, SDLK_CAPSLOCK,
     42 	SDLK_F1, SDLK_F2, SDLK_F3, SDLK_F4, SDLK_F5, SDLK_F6, SDLK_F7, SDLK_F8, SDLK_F9, SDLK_F10, SDLK_F11, SDLK_F12,
     43 	/*46*/	SDLK_PRINT, SDLK_SCROLLOCK, SDLK_PAUSE, SDLK_INSERT, SDLK_HOME, SDLK_PAGEUP, SDLK_DELETE, SDLK_END, SDLK_PAGEDOWN, SDLK_RIGHT, SDLK_LEFT, SDLK_DOWN, SDLK_UP,
     44 	/*53*/	SDLK_NUMLOCK, SDLK_KP_DIVIDE, SDLK_KP_MULTIPLY, SDLK_KP_MINUS, SDLK_KP_PLUS, SDLK_KP_ENTER,
     45 	SDLK_KP1, SDLK_KP2, SDLK_KP3, SDLK_KP4, SDLK_KP5, SDLK_KP6,
     46 	/*5f*/	SDLK_KP7, SDLK_KP8, SDLK_KP9, SDLK_KP0, SDLK_KP_PERIOD, 0 /* S3 */
     47 };
     48 
     49 const static unsigned short sdl_shift[] = {
     50 	SDLK_LCTRL,SDLK_LSHIFT,SDLK_LALT,0 /* S1 */,
     51 	SDLK_RCTRL,SDLK_RSHIFT,SDLK_RALT,0 /* S2 */,
     52 };
     53 
     54 #define	MOUSE_WHEELUP 	(1<<4)
     55 #define	MOUSE_WHEELDOWN	(1<<5)
     56 
     57 static void mouse_update(void)
     58 {
     59 const	static char sdl_mousebtn[] = {
     60 	MOUSE_LEFTBUTTON,
     61 	MOUSE_RIGHTBUTTON,
     62 	MOUSE_SIDEBUTTON,
     63 	MOUSE_WHEELUP,
     64 	MOUSE_WHEELDOWN
     65 };
     66 
     67 	uint8 addr;
     68 	mouse_cond_t	cond;
     69 
     70 	static int prev_buttons;
     71 	int buttons,changed;
     72 	int i;
     73 
     74 	if ((addr = maple_first_mouse())==0 || mouse_get_cond(addr, &cond)<0) return;
     75 
     76 	buttons = cond.buttons^0xff;
     77 	if (cond.dz<0) buttons|=MOUSE_WHEELUP;
     78 	if (cond.dz>0) buttons|=MOUSE_WHEELDOWN;
     79 
     80 	if (cond.dx||cond.dy) SDL_PrivateMouseMotion(0,1,cond.dx,cond.dy);
     81 
     82 	changed = buttons^prev_buttons;
     83 	for(i=0;i<sizeof(sdl_mousebtn);i++) {
     84 		if (changed & sdl_mousebtn[i]) {
     85 			SDL_PrivateMouseButton((buttons & sdl_mousebtn[i])?SDL_PRESSED:SDL_RELEASED,i,0,0);
     86 		}
     87 	}
     88 	prev_buttons = buttons;
     89 }
     90 
     91 static void keyboard_update(void)
     92 {
     93 	static kbd_state_t	old_state;
     94 	static uint8 old_addr;
     95 
     96 	kbd_state_t	*state;
     97 	uint8	addr;
     98 	int	port,unit;
     99 
    100 	int shiftkeys;
    101 	SDL_keysym keysym;
    102 
    103 	int i;
    104 
    105 	addr = maple_first_kb();
    106 
    107 	if (addr==0) return;
    108 
    109 	if (addr!=old_addr) {
    110 		old_addr = addr;
    111 		SDL_memset(&old_state,0,sizeof(old_state));
    112 	}
    113 
    114 	maple_raddr(addr,&port,&unit);
    115 
    116 	state = maple_dev_state(port,unit);
    117 	if (!state) return;
    118 
    119 	shiftkeys = state->shift_keys ^ old_state.shift_keys;
    120 	for(i=0;i<sizeof(sdl_shift);i++) {
    121 		if ((shiftkeys>>i)&1) {
    122 			keysym.sym = sdl_shift[i];
    123 			SDL_PrivateKeyboard(((state->shift_keys>>i)&1)?SDL_PRESSED:SDL_RELEASED,&keysym);
    124 		}
    125 	}
    126 
    127 	for(i=0;i<sizeof(sdl_key);i++) {
    128 		if (state->matrix[i]!=old_state.matrix[i]) {
    129 			int key = sdl_key[i];
    130 			if (key) {
    131 				keysym.sym = key;
    132 				SDL_PrivateKeyboard(state->matrix[i]?SDL_PRESSED:SDL_RELEASED,&keysym);
    133 			}
    134 		}
    135 	}
    136 
    137 	old_state = *state;
    138 }
    139 
    140 void DC_PumpEvents(_THIS)
    141 {
    142 	keyboard_update();
    143 	mouse_update();
    144 }
    145 
    146 void DC_InitOSKeymap(_THIS)
    147 {
    148 	/* do nothing. */
    149 }
    150 
    151 /* end of SDL_dcevents.c ... */
    152 
    153