--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/video/gem/SDL_gemevents.c	Sun Feb 17 19:54:28 2002 +0000
@@ -0,0 +1,322 @@
+/*
+    SDL - Simple DirectMedia Layer
+    Copyright (C) 1997, 1998, 1999, 2000, 2001  Sam Lantinga
+
+    This library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Library General Public
+    License as published by the Free Software Foundation; either
+    version 2 of the License, or (at your option) any later version.
+
+    This library 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
+    Library General Public License for more details.
+
+    You should have received a copy of the GNU Library General Public
+    License along with this library; if not, write to the Free
+    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+    Sam Lantinga
+    slouken@libsdl.org
+*/
+
+#ifdef SAVE_RCSID
+static char rcsid =
+ "@(#) $Id$";
+#endif
+
+/*
+ * GEM SDL video driver implementation
+ * inspired from the Dummy SDL driver
+ * 
+ * Patrice Mandin
+ * and work from
+ * Olivier Landemarre, Johan Klockars, Xavier Joubert, Claude Attard
+ */
+
+#include <string.h>
+
+#include <gem.h>
+
+#include "SDL.h"
+#include "SDL_sysevents.h"
+#include "SDL_events_c.h"
+#include "SDL_gemvideo.h"
+#include "SDL_gemevents_c.h"
+#include "../ataricommon/SDL_atarikeys.h"	/* for keyboard scancodes */
+
+/* Defines */
+
+#define ATARIBIOS_MAXKEYS 128
+
+/* Variables */
+
+static unsigned char gem_currentkeyboard[ATARIBIOS_MAXKEYS];
+static unsigned char gem_previouskeyboard[ATARIBIOS_MAXKEYS];
+static unsigned char gem_currentascii[ATARIBIOS_MAXKEYS];
+
+static short prevmousex, prevmousey, prevmouseb;
+
+/* The translation tables from a console scancode to a SDL keysym */
+static SDLKey keymap[ATARIBIOS_MAXKEYS];
+
+/* Functions prototypes */
+
+static SDL_keysym *TranslateKey(int scancode, int asciicode, SDL_keysym *keysym);
+static int do_messages(_THIS, short *message);
+static void do_keyboard(short kc, short ks);
+static void do_mouse(_THIS, short mx, short my, short mb);
+
+/* Functions */
+
+static SDL_keysym *TranslateKey(int scancode, int asciicode, SDL_keysym *keysym)
+{
+	/* Set the keysym information */
+	keysym->scancode = scancode;
+
+	if (asciicode)
+		keysym->sym = asciicode;		
+	else
+		keysym->sym = keymap[scancode];
+
+	keysym->mod = KMOD_NONE;
+	keysym->unicode = 0;
+
+	return(keysym);
+}
+
+void GEM_InitOSKeymap(_THIS)
+{
+	int i;
+
+	memset(gem_currentkeyboard, 0, sizeof(gem_currentkeyboard));
+	memset(gem_previouskeyboard, 0, sizeof(gem_previouskeyboard));
+	memset(gem_currentascii, 0, sizeof(gem_currentascii));
+
+	/* Initialize keymap */
+	for ( i=0; i<sizeof(keymap); i++ )
+		keymap[i] = SDLK_UNKNOWN;
+
+	/* Functions keys */
+	for ( i = 0; i<10; i++ )
+		keymap[SCANCODE_F1 + i] = SDLK_F1+i;
+
+	/* Cursor keypad */
+	keymap[SCANCODE_HELP] = SDLK_HELP;
+	keymap[SCANCODE_UNDO] = SDLK_UNDO;
+	keymap[SCANCODE_INSERT] = SDLK_INSERT;
+	keymap[SCANCODE_CLRHOME] = SDLK_HOME;
+	keymap[SCANCODE_UP] = SDLK_UP;
+	keymap[SCANCODE_DOWN] = SDLK_DOWN;
+	keymap[SCANCODE_RIGHT] = SDLK_RIGHT;
+	keymap[SCANCODE_LEFT] = SDLK_LEFT;
+
+	/* Special keys */
+	keymap[SCANCODE_ESCAPE] = SDLK_ESCAPE;
+	keymap[SCANCODE_BACKSPACE] = SDLK_BACKSPACE;
+	keymap[SCANCODE_TAB] = SDLK_TAB;
+	keymap[SCANCODE_ENTER] = SDLK_RETURN;
+	keymap[SCANCODE_DELETE] = SDLK_DELETE;
+	keymap[SCANCODE_LEFTCONTROL] = SDLK_LCTRL;
+	keymap[SCANCODE_LEFTSHIFT] = SDLK_LSHIFT;
+	keymap[SCANCODE_RIGHTSHIFT] = SDLK_RSHIFT;
+	keymap[SCANCODE_LEFTALT] = SDLK_LALT;
+	keymap[SCANCODE_CAPSLOCK] = SDLK_CAPSLOCK;
+
+	/* Mouse init */
+	prevmousex = prevmousey = prevmouseb = 0;
+	GEM_mouse_relative = SDL_FALSE;
+}
+
+void GEM_PumpEvents(_THIS)
+{
+	short mx, my, mb, dummy;
+	int i;
+	SDL_keysym	keysym;
+
+	memset(gem_currentkeyboard,0,sizeof(gem_currentkeyboard));
+	
+	for (;;)
+	{
+		int quit, resultat;
+		short buffer[8], kc, ks;
+
+		quit = 0;
+
+		resultat = evnt_multi(
+			MU_MESAG|MU_TIMER|MU_KEYBD,
+			0,0,0,
+			0,0,0,0,0,
+			0,0,0,0,0,
+			buffer,
+			10,
+			&dummy,&dummy,&dummy,&ks,&kc,&dummy
+		);
+
+		/* Message event ? */
+		if (resultat & MU_MESAG)
+			quit = do_messages(this, buffer);
+
+		/* Keyboard event ? */
+		if (resultat & MU_KEYBD)
+			do_keyboard(kc,ks);
+		else
+			do_keyboard(0,0);
+
+		/* Timer event ? */
+		if ((resultat & MU_TIMER) || quit)
+			break;
+	}
+
+	/* Update mouse */
+	graf_mkstate(&mx, &my, &mb, &dummy);
+	do_mouse(this, mx, my, mb);
+
+	/* Now generates keyboard events */
+	for (i=0; i<ATARIBIOS_MAXKEYS; i++) {
+		/* Key pressed ? */
+		if (gem_currentkeyboard[i] && !gem_previouskeyboard[i])
+			SDL_PrivateKeyboard(SDL_PRESSED, TranslateKey(i, gem_currentascii[i], &keysym));
+			
+		/* Key unpressed ? */
+		if (gem_previouskeyboard[i] && !gem_currentkeyboard[i])
+			SDL_PrivateKeyboard(SDL_RELEASED, TranslateKey(i, 0, &keysym));
+	}
+
+	memcpy(gem_previouskeyboard,gem_currentkeyboard,sizeof(gem_previouskeyboard));
+}
+
+static int do_messages(_THIS, short *message)
+{
+	int quit, posted;
+
+	quit=0;
+	switch (message[0]) {
+		case WM_CLOSED:
+		case AP_TERM:    
+			posted = SDL_PrivateQuit();
+			quit=1;
+			break;
+		case WM_MOVED:
+			wind_set(message[3],WF_CURRXYWH,message[4],message[5],message[6],message[7]);
+			break;
+		case WM_TOPPED:
+			wind_set(message[3],WF_TOP,message[4],0,0,0);
+			SDL_PrivateAppActive(1, SDL_APPINPUTFOCUS);
+			break;
+		case WM_REDRAW:
+			GEM_wind_redraw(this, message[3],&message[4]);
+			break;
+		case WM_ICONIFY:
+		case WM_ALLICONIFY:
+			wind_set(message[3],WF_ICONIFY,message[4],message[5],message[6],message[7]);
+			/* If we're active, make ourselves inactive */
+			if ( SDL_GetAppState() & SDL_APPACTIVE ) {
+				/* Send an internal deactivate event */
+				SDL_PrivateAppActive(0, SDL_APPACTIVE|SDL_APPINPUTFOCUS);
+			}
+			break;
+		case WM_UNICONIFY:
+			wind_set(message[3],WF_UNICONIFY,message[4],message[5],message[6],message[7]);
+			/* If we're not active, make ourselves active */
+			if ( !(SDL_GetAppState() & SDL_APPACTIVE) ) {
+				/* Send an internal activate event */
+				SDL_PrivateAppActive(1, SDL_APPACTIVE);
+			}
+			break;
+		case WM_SIZED:
+			wind_set (message[3], WF_CURRXYWH, message[4], message[5], message[6], message[7]);
+			GEM_win_fulled = SDL_FALSE;		/* Cancel maximized flag */
+			SDL_PrivateResize(message[6], message[7]);
+			break;
+		case WM_FULLED:
+			{
+				short x,y,w,h;
+
+				if (GEM_win_fulled) {
+					wind_get (message[3], WF_PREVXYWH, &x, &y, &w, &h);
+					GEM_win_fulled = SDL_FALSE;
+				} else {
+					x = GEM_desk_x;
+					y = GEM_desk_y;
+					w = GEM_desk_w;
+					h = GEM_desk_h;
+					GEM_win_fulled = SDL_TRUE;
+				}
+				wind_set (message[3], WF_CURRXYWH, x, y, w, h);
+				SDL_PrivateResize(w, h);
+			}
+			break;
+		case WM_BOTTOMED:
+		case WM_UNTOPPED:
+			SDL_PrivateAppActive(0, SDL_APPINPUTFOCUS);
+			break;
+	}
+	
+	return quit;
+}
+
+static void do_keyboard(short kc, short ks)
+{
+	int			scancode, asciicode;
+	short		dummy;
+
+	if (kc) {
+		scancode=(kc>>8) & 127;
+		asciicode=kc & 255;
+
+		gem_currentkeyboard[scancode]=0xFF;
+		gem_currentascii[scancode]=asciicode;
+	}
+
+	if (!ks)
+		graf_mkstate(&dummy, &dummy, &dummy, &ks);
+
+	/* Read special keys */
+	if (ks & K_RSHIFT)
+		gem_currentkeyboard[SCANCODE_RIGHTSHIFT]=0xFF;
+	if (ks & K_LSHIFT)
+		gem_currentkeyboard[SCANCODE_LEFTSHIFT]=0xFF;
+	if (ks & K_CTRL)
+		gem_currentkeyboard[SCANCODE_LEFTCONTROL]=0xFF;
+	if (ks & K_ALT)
+		gem_currentkeyboard[SCANCODE_LEFTALT]=0xFF;
+}
+
+static void do_mouse(_THIS, short mx, short my, short mb)
+{
+	/* Mouse motion ? */
+	if ((prevmousex!=mx) || (prevmousey!=my)) {
+		if (GEM_mouse_relative) {
+			short wind_pxy[8];
+
+			wind_get(GEM_handle, WF_WORKXYWH, &wind_pxy[0], &wind_pxy[1], &wind_pxy[2], &wind_pxy[3]);
+
+			SDL_PrivateMouseMotion(0, 1, mx-wind_pxy[0], my-wind_pxy[1]);
+		} else {
+			SDL_PrivateMouseMotion(0, 1, mx, my);
+		}
+		prevmousex = mx;
+		prevmousey = my;
+	}
+
+	/* Mouse button ? */
+	if (prevmouseb!=mb) {
+		int i;
+
+		for (i=0;i<3;i++) {
+			int curbutton, prevbutton;
+		
+			curbutton = mb & (1<<i);
+			prevbutton = prevmouseb & (1<<i);
+		
+			if (curbutton & !prevbutton) {
+				SDL_PrivateMouseButton(SDL_PRESSED, i, 0, 0);
+			}
+			if (!curbutton & prevbutton) {
+				SDL_PrivateMouseButton(SDL_RELEASED, i, 0, 0);
+			}
+		}
+		prevmouseb = mb;
+	}
+}