slouken@281: /*
slouken@281:     SDL - Simple DirectMedia Layer
slouken@769:     Copyright (C) 1997-2004 Sam Lantinga
slouken@281: 
slouken@281:     This library is free software; you can redistribute it and/or
slouken@281:     modify it under the terms of the GNU Library General Public
slouken@281:     License as published by the Free Software Foundation; either
slouken@281:     version 2 of the License, or (at your option) any later version.
slouken@281: 
slouken@281:     This library is distributed in the hope that it will be useful,
slouken@281:     but WITHOUT ANY WARRANTY; without even the implied warranty of
slouken@281:     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
slouken@281:     Library General Public License for more details.
slouken@281: 
slouken@281:     You should have received a copy of the GNU Library General Public
slouken@281:     License along with this library; if not, write to the Free
slouken@281:     Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
slouken@281: 
slouken@281:     Sam Lantinga
slouken@281:     slouken@libsdl.org
slouken@281: */
slouken@281: 
slouken@281: #ifdef SAVE_RCSID
slouken@281: static char rcsid =
slouken@281:  "@(#) $Id$";
slouken@281: #endif
slouken@281: 
slouken@281: /*
slouken@281:  * GEM SDL video driver implementation
slouken@281:  * inspired from the Dummy SDL driver
slouken@281:  * 
slouken@281:  * Patrice Mandin
slouken@281:  * and work from
slouken@281:  * Olivier Landemarre, Johan Klockars, Xavier Joubert, Claude Attard
slouken@281:  */
slouken@281: 
slouken@281: #include <string.h>
slouken@281: 
slouken@281: #include <gem.h>
slouken@281: 
slouken@281: #include "SDL.h"
slouken@281: #include "SDL_sysevents.h"
slouken@281: #include "SDL_events_c.h"
slouken@281: #include "SDL_gemvideo.h"
slouken@281: #include "SDL_gemevents_c.h"
slouken@319: #include "SDL_atarikeys.h"	/* for keyboard scancodes */
slouken@319: #include "SDL_xbiosinterrupt_s.h"
slouken@281: 
slouken@281: /* Defines */
slouken@281: 
slouken@281: #define ATARIBIOS_MAXKEYS 128
slouken@281: 
slouken@281: /* Variables */
slouken@281: 
slouken@281: static unsigned char gem_currentkeyboard[ATARIBIOS_MAXKEYS];
slouken@281: static unsigned char gem_previouskeyboard[ATARIBIOS_MAXKEYS];
slouken@281: static unsigned char gem_currentascii[ATARIBIOS_MAXKEYS];
slouken@281: 
slouken@281: /* The translation tables from a console scancode to a SDL keysym */
slouken@281: static SDLKey keymap[ATARIBIOS_MAXKEYS];
slouken@281: 
slouken@281: /* Functions prototypes */
slouken@281: 
slouken@281: static SDL_keysym *TranslateKey(int scancode, int asciicode, SDL_keysym *keysym);
slouken@281: static int do_messages(_THIS, short *message);
slouken@281: static void do_keyboard(short kc, short ks);
slouken@319: static void do_mouse(_THIS, short mx, short my, short mb, short ks);
slouken@281: 
slouken@281: /* Functions */
slouken@281: 
slouken@281: static SDL_keysym *TranslateKey(int scancode, int asciicode, SDL_keysym *keysym)
slouken@281: {
slouken@281: 	/* Set the keysym information */
slouken@281: 	keysym->scancode = scancode;
slouken@281: 
slouken@281: 	if (asciicode)
slouken@281: 		keysym->sym = asciicode;		
slouken@281: 	else
slouken@281: 		keysym->sym = keymap[scancode];
slouken@281: 
slouken@281: 	keysym->mod = KMOD_NONE;
slouken@281: 	keysym->unicode = 0;
slouken@281: 
slouken@281: 	return(keysym);
slouken@281: }
slouken@281: 
slouken@281: void GEM_InitOSKeymap(_THIS)
slouken@281: {
slouken@281: 	int i;
slouken@281: 
slouken@281: 	memset(gem_currentkeyboard, 0, sizeof(gem_currentkeyboard));
slouken@281: 	memset(gem_previouskeyboard, 0, sizeof(gem_previouskeyboard));
slouken@281: 	memset(gem_currentascii, 0, sizeof(gem_currentascii));
slouken@281: 
slouken@281: 	/* Initialize keymap */
slouken@281: 	for ( i=0; i<sizeof(keymap); i++ )
slouken@281: 		keymap[i] = SDLK_UNKNOWN;
slouken@281: 
slouken@281: 	/* Functions keys */
slouken@281: 	for ( i = 0; i<10; i++ )
slouken@281: 		keymap[SCANCODE_F1 + i] = SDLK_F1+i;
slouken@281: 
slouken@281: 	/* Cursor keypad */
slouken@281: 	keymap[SCANCODE_HELP] = SDLK_HELP;
slouken@281: 	keymap[SCANCODE_UNDO] = SDLK_UNDO;
slouken@281: 	keymap[SCANCODE_INSERT] = SDLK_INSERT;
slouken@281: 	keymap[SCANCODE_CLRHOME] = SDLK_HOME;
slouken@281: 	keymap[SCANCODE_UP] = SDLK_UP;
slouken@281: 	keymap[SCANCODE_DOWN] = SDLK_DOWN;
slouken@281: 	keymap[SCANCODE_RIGHT] = SDLK_RIGHT;
slouken@281: 	keymap[SCANCODE_LEFT] = SDLK_LEFT;
slouken@281: 
slouken@281: 	/* Special keys */
slouken@281: 	keymap[SCANCODE_ESCAPE] = SDLK_ESCAPE;
slouken@281: 	keymap[SCANCODE_BACKSPACE] = SDLK_BACKSPACE;
slouken@281: 	keymap[SCANCODE_TAB] = SDLK_TAB;
slouken@281: 	keymap[SCANCODE_ENTER] = SDLK_RETURN;
slouken@281: 	keymap[SCANCODE_DELETE] = SDLK_DELETE;
slouken@281: 	keymap[SCANCODE_LEFTCONTROL] = SDLK_LCTRL;
slouken@281: 	keymap[SCANCODE_LEFTSHIFT] = SDLK_LSHIFT;
slouken@281: 	keymap[SCANCODE_RIGHTSHIFT] = SDLK_RSHIFT;
slouken@281: 	keymap[SCANCODE_LEFTALT] = SDLK_LALT;
slouken@281: 	keymap[SCANCODE_CAPSLOCK] = SDLK_CAPSLOCK;
slouken@281: 
slouken@281: 	/* Mouse init */
slouken@281: 	GEM_mouse_relative = SDL_FALSE;
slouken@281: }
slouken@281: 
slouken@281: void GEM_PumpEvents(_THIS)
slouken@281: {
slouken@319: 	short mousex, mousey, mouseb, dummy;
slouken@319: 	short kstate, prevkc, prevks;
slouken@281: 	int i;
slouken@281: 	SDL_keysym	keysym;
slouken@281: 
slouken@281: 	memset(gem_currentkeyboard,0,sizeof(gem_currentkeyboard));
slouken@319: 	prevkc = prevks = 0;
slouken@281: 	
slouken@281: 	for (;;)
slouken@281: 	{
patmandin@1073: 		int quit, resultat, event_mask;
slouken@319: 		short buffer[8], kc;
patmandin@1067: 		short x2,y2,w2,h2;
slouken@281: 
slouken@281: 		quit = 0;
slouken@281: 
patmandin@1067: 		event_mask = MU_MESAG|MU_TIMER|MU_KEYBD;
patmandin@1067: 		if (!GEM_fullscreen && (GEM_handle>=0)) {
patmandin@1067: 			wind_get (GEM_handle, WF_WORKXYWH, &x2, &y2, &w2, &h2);
patmandin@1067: 			event_mask |= MU_M1|MU_M2;
patmandin@1067: 		} else {
patmandin@1067: 			x2=y2=w2=h2=0;
patmandin@1067: 		}
patmandin@1067: 
slouken@281: 		resultat = evnt_multi(
patmandin@1067: 			event_mask,
slouken@281: 			0,0,0,
patmandin@1067: 			MO_ENTER,x2,y2,w2,h2,
patmandin@1067: 			MO_LEAVE,x2,y2,w2,h2,
slouken@281: 			buffer,
slouken@281: 			10,
slouken@319: 			&dummy,&dummy,&dummy,&kstate,&kc,&dummy
slouken@281: 		);
slouken@281: 
slouken@281: 		/* Message event ? */
slouken@281: 		if (resultat & MU_MESAG)
slouken@281: 			quit = do_messages(this, buffer);
slouken@281: 
slouken@281: 		/* Keyboard event ? */
slouken@319: 		if (resultat & MU_KEYBD) {
slouken@319: 			if ((prevkc != kc) || (prevks != kstate)) {
slouken@319: 				do_keyboard(kc,kstate);
slouken@319: 			} else {
slouken@319: 				/* Avoid looping, if repeating same key */
slouken@319: 				break;
slouken@319: 			}
slouken@319: 		}
slouken@281: 
patmandin@1067: 		/* Mouse entering/leaving window */
patmandin@1067: 		if (resultat & MU_M1) {
patmandin@1067: 			if (this->input_grab == SDL_GRAB_OFF) {
patmandin@1088: 				if ( !(SDL_GetAppState() & SDL_APPMOUSEFOCUS) ) {
patmandin@1088: 					SDL_PrivateAppActive(1, SDL_APPMOUSEFOCUS);
patmandin@1088: 				}
patmandin@1067: 			}
patmandin@1067: 		}
patmandin@1067: 		if (resultat & MU_M2) {
patmandin@1067: 			if (this->input_grab == SDL_GRAB_OFF) {
patmandin@1088: 				if ( (SDL_GetAppState() & SDL_APPMOUSEFOCUS) ) {
patmandin@1088: 					SDL_PrivateAppActive(0, SDL_APPMOUSEFOCUS);
patmandin@1088: 				]
patmandin@1067: 			}
patmandin@1067: 		}
patmandin@1067: 
slouken@281: 		/* Timer event ? */
slouken@281: 		if ((resultat & MU_TIMER) || quit)
slouken@281: 			break;
slouken@281: 	}
slouken@281: 
slouken@281: 	/* Update mouse */
slouken@319: 	graf_mkstate(&mousex, &mousey, &mouseb, &kstate);
slouken@319: 	do_mouse(this, mousex, mousey, mouseb, kstate);
slouken@281: 
slouken@319: 	/* Now generate keyboard events */
slouken@281: 	for (i=0; i<ATARIBIOS_MAXKEYS; i++) {
slouken@281: 		/* Key pressed ? */
slouken@281: 		if (gem_currentkeyboard[i] && !gem_previouskeyboard[i])
slouken@281: 			SDL_PrivateKeyboard(SDL_PRESSED, TranslateKey(i, gem_currentascii[i], &keysym));
slouken@281: 			
slouken@281: 		/* Key unpressed ? */
slouken@281: 		if (gem_previouskeyboard[i] && !gem_currentkeyboard[i])
slouken@285: 			SDL_PrivateKeyboard(SDL_RELEASED, TranslateKey(i, gem_currentascii[i], &keysym));
slouken@281: 	}
slouken@281: 
slouken@281: 	memcpy(gem_previouskeyboard,gem_currentkeyboard,sizeof(gem_previouskeyboard));
patmandin@996: 
patmandin@996: 	/* Refresh window name ? */
patmandin@996: 	if (GEM_refresh_name) {
patmandin@996: 		if ( SDL_GetAppState() & SDL_APPACTIVE ) {
patmandin@996: 			/* Fullscreen/windowed */
patmandin@996: 			if (GEM_title_name) {
patmandin@996: 				wind_set(GEM_handle,WF_NAME,(short)(((unsigned long)GEM_title_name)>>16),(short)(((unsigned long)GEM_title_name) & 0xffff),0,0);
patmandin@996: 			}
patmandin@996: 		} else {
patmandin@996: 			/* Iconified */
patmandin@996: 			if (GEM_icon_name) {
patmandin@996: 				wind_set(GEM_handle,WF_NAME,(short)(((unsigned long)GEM_icon_name)>>16),(short)(((unsigned long)GEM_icon_name) & 0xffff),0,0);
patmandin@996: 			}
patmandin@996: 		}
patmandin@996: 		GEM_refresh_name = SDL_FALSE;
patmandin@996: 	}
slouken@281: }
slouken@281: 
slouken@281: static int do_messages(_THIS, short *message)
slouken@281: {
slouken@281: 	int quit, posted;
patmandin@922: 	short x2,y2,w2,h2;
slouken@281: 
slouken@281: 	quit=0;
slouken@281: 	switch (message[0]) {
slouken@281: 		case WM_CLOSED:
slouken@281: 		case AP_TERM:    
slouken@281: 			posted = SDL_PrivateQuit();
slouken@281: 			quit=1;
slouken@281: 			break;
slouken@281: 		case WM_MOVED:
slouken@281: 			wind_set(message[3],WF_CURRXYWH,message[4],message[5],message[6],message[7]);
slouken@281: 			break;
slouken@281: 		case WM_TOPPED:
slouken@281: 			wind_set(message[3],WF_TOP,message[4],0,0,0);
slouken@281: 			SDL_PrivateAppActive(1, SDL_APPINPUTFOCUS);
patmandin@1074: 			if (VDI_setpalette) {
patmandin@1074: 				VDI_setpalette(this, VDI_curpalette);
patmandin@1074: 			}
slouken@281: 			break;
slouken@281: 		case WM_REDRAW:
patmandin@964: 			if (!GEM_lock_redraw) {
patmandin@964: 				GEM_wind_redraw(this, message[3],&message[4]);
patmandin@964: 			}
slouken@281: 			break;
slouken@281: 		case WM_ICONIFY:
slouken@281: 		case WM_ALLICONIFY:
slouken@281: 			wind_set(message[3],WF_ICONIFY,message[4],message[5],message[6],message[7]);
slouken@281: 			/* If we're active, make ourselves inactive */
slouken@281: 			if ( SDL_GetAppState() & SDL_APPACTIVE ) {
slouken@281: 				/* Send an internal deactivate event */
patmandin@1088: 				SDL_PrivateAppActive(0, SDL_APPACTIVE);
slouken@281: 			}
patmandin@736: 			/* Update window title */
patmandin@736: 			if (GEM_refresh_name && GEM_icon_name) {
patmandin@736: 				wind_set(GEM_handle,WF_NAME,(short)(((unsigned long)GEM_icon_name)>>16),(short)(((unsigned long)GEM_icon_name) & 0xffff),0,0);
patmandin@736: 				GEM_refresh_name = SDL_FALSE;
patmandin@736: 			}
slouken@281: 			break;
slouken@281: 		case WM_UNICONIFY:
slouken@281: 			wind_set(message[3],WF_UNICONIFY,message[4],message[5],message[6],message[7]);
slouken@281: 			/* If we're not active, make ourselves active */
slouken@281: 			if ( !(SDL_GetAppState() & SDL_APPACTIVE) ) {
slouken@281: 				/* Send an internal activate event */
slouken@281: 				SDL_PrivateAppActive(1, SDL_APPACTIVE);
slouken@281: 			}
patmandin@736: 			if (GEM_refresh_name && GEM_title_name) {
patmandin@736: 				wind_set(GEM_handle,WF_NAME,(short)(((unsigned long)GEM_title_name)>>16),(short)(((unsigned long)GEM_title_name) & 0xffff),0,0);
patmandin@736: 				GEM_refresh_name = SDL_FALSE;
patmandin@736: 			}
slouken@281: 			break;
slouken@281: 		case WM_SIZED:
slouken@281: 			wind_set (message[3], WF_CURRXYWH, message[4], message[5], message[6], message[7]);
patmandin@964: 			wind_get (message[3], WF_WORKXYWH, &x2, &y2, &w2, &h2);
slouken@281: 			GEM_win_fulled = SDL_FALSE;		/* Cancel maximized flag */
patmandin@964: 			GEM_lock_redraw = SDL_TRUE;		/* Prevent redraw till buffers resized */
patmandin@922: 			SDL_PrivateResize(w2, h2);
slouken@281: 			break;
slouken@281: 		case WM_FULLED:
slouken@281: 			{
slouken@281: 				short x,y,w,h;
slouken@281: 
slouken@281: 				if (GEM_win_fulled) {
slouken@281: 					wind_get (message[3], WF_PREVXYWH, &x, &y, &w, &h);
slouken@281: 					GEM_win_fulled = SDL_FALSE;
slouken@281: 				} else {
slouken@281: 					x = GEM_desk_x;
slouken@281: 					y = GEM_desk_y;
slouken@281: 					w = GEM_desk_w;
slouken@281: 					h = GEM_desk_h;
slouken@281: 					GEM_win_fulled = SDL_TRUE;
slouken@281: 				}
slouken@281: 				wind_set (message[3], WF_CURRXYWH, x, y, w, h);
patmandin@922: 				wind_get (message[3], WF_WORKXYWH, &x2, &y2, &w2, &h2);
patmandin@964: 				GEM_lock_redraw = SDL_TRUE;		/* Prevent redraw till buffers resized */
patmandin@922: 				SDL_PrivateResize(w2, h2);
slouken@281: 			}
slouken@281: 			break;
slouken@281: 		case WM_BOTTOMED:
slouken@281: 		case WM_UNTOPPED:
slouken@281: 			SDL_PrivateAppActive(0, SDL_APPINPUTFOCUS);
patmandin@1074: 			if (VDI_setpalette) {
patmandin@1074: 				VDI_setpalette(this, VDI_oldpalette);
patmandin@1074: 			}
slouken@281: 			break;
slouken@281: 	}
slouken@281: 	
slouken@281: 	return quit;
slouken@281: }
slouken@281: 
slouken@281: static void do_keyboard(short kc, short ks)
slouken@281: {
slouken@281: 	int			scancode, asciicode;
slouken@281: 
slouken@281: 	if (kc) {
slouken@281: 		scancode=(kc>>8) & 127;
slouken@281: 		asciicode=kc & 255;
slouken@281: 
slouken@281: 		gem_currentkeyboard[scancode]=0xFF;
slouken@281: 		gem_currentascii[scancode]=asciicode;
slouken@281: 	}
slouken@281: 
slouken@281: 	/* Read special keys */
slouken@281: 	if (ks & K_RSHIFT)
slouken@281: 		gem_currentkeyboard[SCANCODE_RIGHTSHIFT]=0xFF;
slouken@281: 	if (ks & K_LSHIFT)
slouken@281: 		gem_currentkeyboard[SCANCODE_LEFTSHIFT]=0xFF;
slouken@281: 	if (ks & K_CTRL)
slouken@281: 		gem_currentkeyboard[SCANCODE_LEFTCONTROL]=0xFF;
slouken@281: 	if (ks & K_ALT)
slouken@281: 		gem_currentkeyboard[SCANCODE_LEFTALT]=0xFF;
slouken@281: }
slouken@281: 
slouken@319: static void do_mouse(_THIS, short mx, short my, short mb, short ks)
slouken@281: {
slouken@319: 	static short prevmousex=0, prevmousey=0, prevmouseb=0;
patmandin@926: 	short x2, y2, w2, h2;
patmandin@926: 
patmandin@1067: 	/* Don't return mouse events if out of window */
patmandin@1067: 	if ((SDL_GetAppState() & SDL_APPMOUSEFOCUS)==0) {
patmandin@1067: 		return;
patmandin@1067: 	}
patmandin@1067: 
patmandin@926: 	/* Retrieve window coords, and generate mouse events accordingly */
patmandin@926: 	x2 = y2 = 0;
patmandin@928: 	w2 = VDI_w;
patmandin@928: 	h2 = VDI_h;
patmandin@926: 	if ((!GEM_fullscreen) && (GEM_handle>=0)) {
patmandin@926: 		wind_get (GEM_handle, WF_WORKXYWH, &x2, &y2, &w2, &h2);
patmandin@926: 
patmandin@926: 		/* Do not generate mouse button event if out of window working area */
patmandin@926: 		if ((mx<x2) || (mx>=x2+w2) || (my<y2) || (my>=y2+h2)) {
patmandin@926: 			mb=prevmouseb;
patmandin@926: 		}
patmandin@926: 	}
slouken@319: 
slouken@281: 	/* Mouse motion ? */
slouken@281: 	if ((prevmousex!=mx) || (prevmousey!=my)) {
slouken@281: 		if (GEM_mouse_relative) {
slouken@319: 			SDL_PrivateMouseMotion(0, 1, SDL_AtariXbios_mousex, SDL_AtariXbios_mousey);
slouken@319: 			SDL_AtariXbios_mousex = SDL_AtariXbios_mousey = 0;
slouken@281: 		} else {
patmandin@926: 			int posx, posy;
patmandin@926: 
patmandin@926: 			/* Give mouse position relative to window position */
patmandin@926: 			posx = mx - x2;
patmandin@927: 			if (posx<0) posx = 0;
patmandin@926: 			if (posx>w2) posx = w2-1;
patmandin@926: 			posy = my - y2;
patmandin@927: 			if (posy<0) posy = 0;
patmandin@926: 			if (posy>h2) posy = h2-1;
patmandin@926: 
patmandin@926: 			SDL_PrivateMouseMotion(0, 0, posx, posy);
slouken@281: 		}
slouken@281: 		prevmousex = mx;
slouken@281: 		prevmousey = my;
slouken@281: 	}
slouken@281: 
slouken@281: 	/* Mouse button ? */
slouken@281: 	if (prevmouseb!=mb) {
slouken@281: 		int i;
slouken@281: 
slouken@319: 		for (i=0;i<2;i++) {
slouken@281: 			int curbutton, prevbutton;
slouken@281: 		
slouken@281: 			curbutton = mb & (1<<i);
slouken@281: 			prevbutton = prevmouseb & (1<<i);
slouken@281: 		
slouken@319: 			if (curbutton && !prevbutton) {
slouken@319: 				SDL_PrivateMouseButton(SDL_PRESSED, i+1, 0, 0);
slouken@281: 			}
slouken@319: 			if (!curbutton && prevbutton) {
slouken@319: 				SDL_PrivateMouseButton(SDL_RELEASED, i+1, 0, 0);
slouken@281: 			}
slouken@281: 		}
slouken@281: 		prevmouseb = mb;
slouken@281: 	}
slouken@319: 
slouken@319: 	/* Read special keys */
slouken@319: 	if (ks & K_RSHIFT)
slouken@319: 		gem_currentkeyboard[SCANCODE_RIGHTSHIFT]=0xFF;
slouken@319: 	if (ks & K_LSHIFT)
slouken@319: 		gem_currentkeyboard[SCANCODE_LEFTSHIFT]=0xFF;
slouken@319: 	if (ks & K_CTRL)
slouken@319: 		gem_currentkeyboard[SCANCODE_LEFTCONTROL]=0xFF;
slouken@319: 	if (ks & K_ALT)
slouken@319: 		gem_currentkeyboard[SCANCODE_LEFTALT]=0xFF;
slouken@281: }