src/video/gem/SDL_gemevents.c
author Sam Lantinga <slouken@libsdl.org>
Mon, 08 Dec 2008 00:25:42 +0000
branchSDL-1.2
changeset 4159 a1b03ba2fcd0
parent 4060 0b4ebec67cad
child 4564 5002d6aeb85c
permissions -rw-r--r--
Updated copyright date
     1 /*
     2     SDL - Simple DirectMedia Layer
     3     Copyright (C) 1997-2009 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@libsdl.org
    21 */
    22 #include "SDL_config.h"
    23 
    24 /*
    25  * GEM SDL video driver implementation
    26  * inspired from the Dummy SDL driver
    27  * 
    28  * Patrice Mandin
    29  * and work from
    30  * Olivier Landemarre, Johan Klockars, Xavier Joubert, Claude Attard
    31  */
    32 
    33 #include <gem.h>
    34 
    35 #include "../../events/SDL_sysevents.h"
    36 #include "../../events/SDL_events_c.h"
    37 #include "SDL_gemvideo.h"
    38 #include "SDL_gemevents_c.h"
    39 #include "../ataricommon/SDL_atarikeys.h"	/* for keyboard scancodes */
    40 #include "../ataricommon/SDL_atarievents_c.h"
    41 #include "../ataricommon/SDL_xbiosevents_c.h"
    42 #include "../ataricommon/SDL_ataridevmouse_c.h"
    43 
    44 /* Variables */
    45 
    46 static unsigned char gem_currentkeyboard[ATARIBIOS_MAXKEYS];
    47 static unsigned char gem_previouskeyboard[ATARIBIOS_MAXKEYS];
    48 
    49 /* Functions prototypes */
    50 
    51 static int do_messages(_THIS, short *message);
    52 static void do_keyboard(short kc, short ks);
    53 static void do_mouse(_THIS, short mx, short my, short mb, short ks);
    54 
    55 /* Functions */
    56 
    57 void GEM_InitOSKeymap(_THIS)
    58 {
    59 	SDL_memset(gem_currentkeyboard, 0, sizeof(gem_currentkeyboard));
    60 	SDL_memset(gem_previouskeyboard, 0, sizeof(gem_previouskeyboard));
    61 
    62 	/* Mouse init */
    63 	GEM_mouse_relative = SDL_FALSE;
    64 
    65 	SDL_Atari_InitInternalKeymap(this);
    66 }
    67 
    68 void GEM_PumpEvents(_THIS)
    69 {
    70 	short mousex, mousey, mouseb, dummy;
    71 	short kstate, prevkc, prevks;
    72 	int i;
    73 	SDL_keysym	keysym;
    74 
    75 	SDL_memset(gem_currentkeyboard,0,sizeof(gem_currentkeyboard));
    76 	prevkc = prevks = 0;
    77 	
    78 	for (;;)
    79 	{
    80 		int quit, resultat, event_mask, mouse_event;
    81 		short buffer[8], kc;
    82 		short x2,y2,w2,h2;
    83 
    84 		quit =
    85 			mouse_event =
    86 			x2=y2=w2=h2 = 0;
    87 
    88 		event_mask = MU_MESAG|MU_TIMER|MU_KEYBD;
    89 		if (!GEM_fullscreen && (GEM_handle>=0)) {
    90 			wind_get (GEM_handle, WF_WORKXYWH, &x2, &y2, &w2, &h2);
    91 			event_mask |= MU_M1;
    92 			mouse_event = ( (SDL_GetAppState() & SDL_APPMOUSEFOCUS)
    93 				== SDL_APPMOUSEFOCUS) ? MO_LEAVE : MO_ENTER;
    94 		}
    95 
    96 		resultat = evnt_multi(
    97 			event_mask,
    98 			0,0,0,
    99 			mouse_event,x2,y2,w2,h2,
   100 			0,0,0,0,0,
   101 			buffer,
   102 			10,
   103 			&dummy,&dummy,&dummy,&kstate,&kc,&dummy
   104 		);
   105 
   106 		/* Message event ? */
   107 		if (resultat & MU_MESAG)
   108 			quit = do_messages(this, buffer);
   109 
   110 		/* Keyboard event ? */
   111 		if (resultat & MU_KEYBD) {
   112 			if ((prevkc != kc) || (prevks != kstate)) {
   113 				do_keyboard(kc,kstate);
   114 			} else {
   115 				/* Avoid looping, if repeating same key */
   116 				break;
   117 			}
   118 		}
   119 
   120 		/* Mouse entering/leaving window */
   121 		if (resultat & MU_M1) {
   122 			if (this->input_grab == SDL_GRAB_OFF) {
   123 				/* Switch mouse focus state */
   124 				SDL_PrivateAppActive((mouse_event == MO_ENTER),
   125 					SDL_APPMOUSEFOCUS);
   126 			}
   127 			GEM_CheckMouseMode(this);
   128 		}
   129 
   130 		/* Timer event ? */
   131 		if ((resultat & MU_TIMER) || quit)
   132 			break;
   133 	}
   134 
   135 	/* Update mouse */
   136 	graf_mkstate(&mousex, &mousey, &mouseb, &kstate);
   137 	do_mouse(this, mousex, mousey, mouseb, kstate);
   138 
   139 	/* Now generate keyboard events */
   140 	for (i=0; i<ATARIBIOS_MAXKEYS; i++) {
   141 		/* Key pressed ? */
   142 		if (gem_currentkeyboard[i] && !gem_previouskeyboard[i])
   143 			SDL_PrivateKeyboard(SDL_PRESSED,
   144 				SDL_Atari_TranslateKey(i, &keysym, SDL_TRUE));
   145 			
   146 		/* Key unpressed ? */
   147 		if (gem_previouskeyboard[i] && !gem_currentkeyboard[i])
   148 			SDL_PrivateKeyboard(SDL_RELEASED,
   149 				SDL_Atari_TranslateKey(i, &keysym, SDL_FALSE));
   150 	}
   151 
   152 	SDL_memcpy(gem_previouskeyboard,gem_currentkeyboard,sizeof(gem_previouskeyboard));
   153 
   154 	/* Refresh window name ? */
   155 	if (GEM_refresh_name) {
   156 		const char *window_name =
   157 			(SDL_GetAppState() & SDL_APPACTIVE)
   158 			? GEM_title_name : GEM_icon_name;
   159 		if (window_name) {
   160 			wind_set(GEM_handle,WF_NAME,
   161 				(short)(((unsigned long)window_name)>>16),
   162 				(short)(((unsigned long)window_name) & 0xffff),
   163 				0,0);
   164 		}
   165 		GEM_refresh_name = SDL_FALSE;
   166 	}
   167 }
   168 
   169 static int do_messages(_THIS, short *message)
   170 {
   171 	int quit, posted, check_mouse_mode;
   172 	short x2,y2,w2,h2;
   173 
   174 	quit = check_mouse_mode = 0;
   175 	switch (message[0]) {
   176 		case WM_CLOSED:
   177 		case AP_TERM:    
   178 			posted = SDL_PrivateQuit();
   179 			quit=1;
   180 			break;
   181 		case WM_MOVED:
   182 			wind_set(message[3],WF_CURRXYWH,message[4],message[5],message[6],message[7]);
   183 			break;
   184 		case WM_TOPPED:
   185 			wind_set(message[3],WF_TOP,message[4],0,0,0);
   186 			/* Continue with TOP event processing */
   187 		case WM_ONTOP:
   188 			SDL_PrivateAppActive(1, SDL_APPINPUTFOCUS);
   189 			if (VDI_setpalette) {
   190 				VDI_setpalette(this, VDI_curpalette);
   191 			}
   192 			check_mouse_mode = 1;
   193 			break;
   194 		case WM_REDRAW:
   195 			if (!GEM_lock_redraw) {
   196 				GEM_wind_redraw(this, message[3],&message[4]);
   197 			}
   198 			break;
   199 		case WM_ICONIFY:
   200 		case WM_ALLICONIFY:
   201 			wind_set(message[3],WF_ICONIFY,message[4],message[5],message[6],message[7]);
   202 			/* If we're active, make ourselves inactive */
   203 			if ( SDL_GetAppState() & SDL_APPACTIVE ) {
   204 				/* Send an internal deactivate event */
   205 				SDL_PrivateAppActive(0, SDL_APPACTIVE);
   206 			}
   207 			/* Update window title */
   208 			if (GEM_refresh_name && GEM_icon_name) {
   209 				wind_set(GEM_handle,WF_NAME,(short)(((unsigned long)GEM_icon_name)>>16),(short)(((unsigned long)GEM_icon_name) & 0xffff),0,0);
   210 				GEM_refresh_name = SDL_FALSE;
   211 			}
   212 			check_mouse_mode = 1;
   213 			break;
   214 		case WM_UNICONIFY:
   215 			wind_set(message[3],WF_UNICONIFY,message[4],message[5],message[6],message[7]);
   216 			/* If we're not active, make ourselves active */
   217 			if ( !(SDL_GetAppState() & SDL_APPACTIVE) ) {
   218 				/* Send an internal activate event */
   219 				SDL_PrivateAppActive(1, SDL_APPACTIVE);
   220 			}
   221 			if (GEM_refresh_name && GEM_title_name) {
   222 				wind_set(GEM_handle,WF_NAME,(short)(((unsigned long)GEM_title_name)>>16),(short)(((unsigned long)GEM_title_name) & 0xffff),0,0);
   223 				GEM_refresh_name = SDL_FALSE;
   224 			}
   225 			check_mouse_mode = 1;
   226 			break;
   227 		case WM_SIZED:
   228 			wind_set (message[3], WF_CURRXYWH, message[4], message[5], message[6], message[7]);
   229 			wind_get (message[3], WF_WORKXYWH, &x2, &y2, &w2, &h2);
   230 			GEM_win_fulled = SDL_FALSE;		/* Cancel maximized flag */
   231 			GEM_lock_redraw = SDL_TRUE;		/* Prevent redraw till buffers resized */
   232 			SDL_PrivateResize(w2, h2);
   233 			break;
   234 		case WM_FULLED:
   235 			{
   236 				short x,y,w,h;
   237 
   238 				if (GEM_win_fulled) {
   239 					wind_get (message[3], WF_PREVXYWH, &x, &y, &w, &h);
   240 					GEM_win_fulled = SDL_FALSE;
   241 				} else {
   242 					x = GEM_desk_x;
   243 					y = GEM_desk_y;
   244 					w = GEM_desk_w;
   245 					h = GEM_desk_h;
   246 					GEM_win_fulled = SDL_TRUE;
   247 				}
   248 				wind_set (message[3], WF_CURRXYWH, x, y, w, h);
   249 				wind_get (message[3], WF_WORKXYWH, &x2, &y2, &w2, &h2);
   250 				GEM_lock_redraw = SDL_TRUE;		/* Prevent redraw till buffers resized */
   251 				SDL_PrivateResize(w2, h2);
   252 			}
   253 			break;
   254 		case WM_BOTTOMED:
   255 			wind_set(message[3],WF_BOTTOM,0,0,0,0);
   256 			/* Continue with BOTTOM event processing */
   257 		case WM_UNTOPPED:
   258 			SDL_PrivateAppActive(0, SDL_APPINPUTFOCUS);
   259 			if (VDI_setpalette) {
   260 				VDI_setpalette(this, VDI_oldpalette);
   261 			}
   262 			check_mouse_mode = 1;
   263 			break;
   264 	}
   265 
   266 	if (check_mouse_mode) {
   267 		GEM_CheckMouseMode(this);
   268 	}
   269 	
   270 	return quit;
   271 }
   272 
   273 static void do_keyboard(short kc, short ks)
   274 {
   275 	int scancode;
   276 
   277 	if (kc) {
   278 		scancode=(kc>>8) & (ATARIBIOS_MAXKEYS-1);
   279 		gem_currentkeyboard[scancode]=0xFF;
   280 	}
   281 
   282 	/* Read special keys */
   283 	if (ks & K_RSHIFT)
   284 		gem_currentkeyboard[SCANCODE_RIGHTSHIFT]=0xFF;
   285 	if (ks & K_LSHIFT)
   286 		gem_currentkeyboard[SCANCODE_LEFTSHIFT]=0xFF;
   287 	if (ks & K_CTRL)
   288 		gem_currentkeyboard[SCANCODE_LEFTCONTROL]=0xFF;
   289 	if (ks & K_ALT)
   290 		gem_currentkeyboard[SCANCODE_LEFTALT]=0xFF;
   291 }
   292 
   293 static void do_mouse(_THIS, short mx, short my, short mb, short ks)
   294 {
   295 	static short prevmousex=0, prevmousey=0, prevmouseb=0;
   296 	short x2, y2, w2, h2;
   297 
   298 	/* Don't return mouse events if out of window */
   299 	if ((SDL_GetAppState() & SDL_APPMOUSEFOCUS)==0) {
   300 		return;
   301 	}
   302 
   303 	/* Retrieve window coords, and generate mouse events accordingly */
   304 	x2 = y2 = 0;
   305 	w2 = VDI_w;
   306 	h2 = VDI_h;
   307 	if ((!GEM_fullscreen) && (GEM_handle>=0)) {
   308 		wind_get (GEM_handle, WF_WORKXYWH, &x2, &y2, &w2, &h2);
   309 
   310 		/* Do not generate mouse button event if out of window working area */
   311 		if ((mx<x2) || (mx>=x2+w2) || (my<y2) || (my>=y2+h2)) {
   312 			mb=prevmouseb;
   313 		}
   314 	}
   315 
   316 	/* Mouse motion ? */
   317 	if (GEM_mouse_relative) {
   318 		if (GEM_usedevmouse) {
   319 			SDL_AtariDevMouse_PostMouseEvents(this, SDL_FALSE);
   320 		} else {
   321 			SDL_AtariXbios_PostMouseEvents(this, SDL_FALSE);
   322 		}
   323 	} else {
   324 		if ((prevmousex!=mx) || (prevmousey!=my)) {
   325 			int posx, posy;
   326 
   327 			/* Give mouse position relative to window position */
   328 			posx = mx - x2;
   329 			if (posx<0) posx = 0;
   330 			if (posx>w2) posx = w2-1;
   331 			posy = my - y2;
   332 			if (posy<0) posy = 0;
   333 			if (posy>h2) posy = h2-1;
   334 
   335 			SDL_PrivateMouseMotion(0, 0, posx, posy);
   336 		}
   337 		prevmousex = mx;
   338 		prevmousey = my;
   339 	}
   340 
   341 	/* Mouse button ? */
   342 	if (prevmouseb!=mb) {
   343 		int i;
   344 
   345 		for (i=0;i<2;i++) {
   346 			int curbutton, prevbutton;
   347 		
   348 			curbutton = mb & (1<<i);
   349 			prevbutton = prevmouseb & (1<<i);
   350 		
   351 			if (curbutton && !prevbutton) {
   352 				SDL_PrivateMouseButton(SDL_PRESSED, i+1, 0, 0);
   353 			}
   354 			if (!curbutton && prevbutton) {
   355 				SDL_PrivateMouseButton(SDL_RELEASED, i+1, 0, 0);
   356 			}
   357 		}
   358 		prevmouseb = mb;
   359 	}
   360 
   361 	/* Read special keys */
   362 	if (ks & K_RSHIFT)
   363 		gem_currentkeyboard[SCANCODE_RIGHTSHIFT]=0xFF;
   364 	if (ks & K_LSHIFT)
   365 		gem_currentkeyboard[SCANCODE_LEFTSHIFT]=0xFF;
   366 	if (ks & K_CTRL)
   367 		gem_currentkeyboard[SCANCODE_LEFTCONTROL]=0xFF;
   368 	if (ks & K_ALT)
   369 		gem_currentkeyboard[SCANCODE_LEFTALT]=0xFF;
   370 }