board/MAI/bios_emulator/scitech/src/pm/x11/event.c - uboot/windcharger - Git at Google

 /****************************************************************************
 *
 *                   SciTech OS Portability Manager Library
 *
 *  ========================================================================
 *
 *    The contents of this file are subject to the SciTech MGL Public
 *    License Version 1.0 (the "License"); you may not use this file
 *    except in compliance with the License. You may obtain a copy of
 *    the License at http://www.scitechsoft.com/mgl-license.txt
 *
 *    Software distributed under the License is distributed on an
 *    "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
 *    implied. See the License for the specific language governing
 *    rights and limitations under the License.
 *
 *    The Original Code is Copyright (C) 1991-1998 SciTech Software, Inc.
 *
 *    The Initial Developer of the Original Code is SciTech Software, Inc.
 *    All Rights Reserved.
 *
 *  ========================================================================
 *
 * Language:     ANSI C
 * Environment:  Unix / X11
 *
 * Description:  X11 event queue implementation for the MGL.
 *               This can be used both for windowed and fullscreen (DGA) modes.
 *
 ****************************************************************************/

 /*---------------------------- Global Variables ---------------------------*/

 static ushort       keyUpMsg[256] = {0};/* Table of key up messages     */
 static int          rangeX,rangeY;      /* Range of mouse coordinates   */

 static Display  *_EVT_dpy;
 static Window    _EVT_win;

 typedef struct {
   int keycode;
   int scancode;
 } xkeymap;

 xkeymap xkeymaps[] = {
   { 9, KB_esc},
   {24, KB_Q},
   {25, KB_W},
   {26, KB_E},
   {27, KB_R},
   {28, KB_T},
   {29, KB_Y},
   {30, KB_U},
   {31, KB_I},
   {32, KB_O},
   {33, KB_P},
 };

 /*---------------------------- Implementation -----------------------------*/

 /* These are not used under non-DOS systems */
 #define _EVT_disableInt()       1
 #define _EVT_restoreInt(flags)

 /****************************************************************************
 PARAMETERS:
 scanCode    - Scan code to test

 REMARKS:
 This macro determines if a specified key is currently down at the
 time that the call is made.
 ****************************************************************************/
 #define _EVT_isKeyDown(scanCode)    (keyUpMsg[scanCode] != 0)

 /****************************************************************************
 REMARKS:
 This function is used to return the number of ticks since system
 startup in milliseconds. This should be the same value that is placed into
 the time stamp fields of events, and is used to implement auto mouse down
 events.
 ****************************************************************************/
 ulong _EVT_getTicks(void)
 {
   static unsigned starttime = 0;
   struct timeval t;

   gettimeofday(&t, NULL);
   if (starttime == 0)
     starttime = t.tv_sec * 1000 + (t.tv_usec/1000);
   return ((t.tv_sec * 1000 + (t.tv_usec/1000)) - starttime);
 }

 static int getScancode(int keycode)
 {
   return keycode-8;
 }

 /****************************************************************************
 REMARKS:
 Pumps all messages in the application message queue into our event queue.
 ****************************************************************************/
 #ifdef X11_CORE
 static void _EVT_pumpX11Messages(void)
 #else
 static void _EVT_pumpMessages(void)
 #endif
 {
   /* TODO: The purpose of this function is to read all keyboard and mouse */
   /*         events from the OS specific event queue, translate them and post */
   /*         them into the SciTech event queue. */
   event_t evt;
   XEvent  ev;
   static int old_mx = 0, old_my = 0, buts = 0, c;
   char buf[2];

   while (XPending(_EVT_dpy) && XNextEvent(_EVT_dpy,&ev)) {
     evt.when = _MGL_getTicks();

     switch(ev.type){
     case KeyPress:
       c = getScancode(ev.xkey.keycode);
       evt.what = EVT_KEYDOWN;
       evt.message = c << 8;
       XLookupString(&ev.xkey, buf, 2, NULL, NULL);
       evt.message |= buf[0];
       break;
     case KeyRelease:
       c = getScancode(ev.xkey.keycode);
       evt.what = EVT_KEYUP;
       evt.message = keyUpMsg[c];
       if(count < EVENTQSIZE)
 	addEvent(&evt);
       keyUpMsg[c] = 0;
       repeatKey[c] = 0;
       break;
     case ButtonPress:
       evt.what = EVT_MOUSEDOWN;
       if(ev.xbutton.button == 1){
 	buts |= EVT_LEFTBUT;
 	evt.message = EVT_LEFTBMASK;
       }else if(ev.xbutton.button == 2){
 	buts |= EVT_MIDDLEBUT;
 	evt.message = EVT_MIDDLEBMASK;
       }else if(ev.xbutton.button == 3){
 	buts |= EVT_RIGHTBUT;
 	evt.message = EVT_RIGHTBMASK;
       }
       evt.modifiers = modifiers | buts;

       break;
     case ButtonRelease:
       evt.what = EVT_MOUSEUP;
       if(ev.xbutton.button == 1){
 	buts &= ~EVT_LEFTBUT;
 	evt.message = EVT_LEFTBMASK;
       }else if(ev.xbutton.button == 2){
 	buts &= ~EVT_MIDDLEBUT;
 	evt.message = EVT_MIDDLEBMASK;
       }else if(ev.xbutton.button == 3){
 	buts &= ~EVT_RIGHTBUT;
 	evt.message = EVT_RIGHTBMASK;
       }
       evt.modifiers = modifiers | buts;

       break;
     case MotionNotify:
       evt.what = EVT_MOUSEMOVE;
       evt.where_x = ev.xmotion.x;
       evt.where_y = ev.xmotion.y;
       evt.relative_x = evt.where_x - old_mx;
       evt.relative_y = evt.where_y - old_my;
       old_mx = evt.where_x;
       old_my = evt.where_y;
       break;
     }
     if (count < EVENTQSIZE)
       addEvent(&evt);
   }

 }

 /****************************************************************************
 REMARKS:
 This macro/function is used to converts the scan codes reported by the
 keyboard to our event libraries normalised format. We only have one scan
 code for the 'A' key, and use shift modifiers to determine if it is a
 Ctrl-F1, Alt-F1 etc. The raw scan codes from the keyboard work this way,
 but the OS gives us 'cooked' scan codes, we have to translate them back
 to the raw format.
 ****************************************************************************/
 #define _EVT_maskKeyCode(evt)

 /****************************************************************************
 REMARKS:
 Safely abort the event module upon catching a fatal error.
 ****************************************************************************/
 void _EVT_abort()
 {
     EVT_exit();
     PM_fatalError("Unhandled exception!");
 }

 /****************************************************************************
 PARAMETERS:
 mouseMove   - Callback function to call wheneve the mouse needs to be moved

 REMARKS:
 Initiliase the event handling module. Here we install our mouse handling ISR
 to be called whenever any button's are pressed or released. We also build
 the free list of events in the event queue.

 We use handler number 2 of the mouse libraries interrupt handlers for our
 event handling routines.
 ****************************************************************************/
 #ifdef X11_CORE
 void EVTAPI EVT_initX11(
 #else
 void EVTAPI EVT_init(
 #endif
     _EVT_mouseMoveHandler mouseMove)
 {
   int result, i,j,k;
   XDeviceInfoPtr    list,slist;

   /* Initialise the event queue */
   _mouseMove = mouseMove;
   initEventQueue();
   memset(keyUpMsg,0,sizeof(keyUpMsg));


   /* query server for input extensions */
   result =XQueryExtension(_EVT_dpy,"XInputExtension",&i,&j,&k);
   if(!result) {
     fprintf(stderr,"Your server doesn't support XInput Extensions\n");
     fprintf(stderr,"X11 Joystick disabled\n");
   }
   list = XListInputDevices(_EVT_dpy,&result);
   if (!list) {
     fprintf(stderr,"No extended input devices found !!\n");
     fprintf(stderr,"X11 Joystick disabled\n");
   }


   /* Catch program termination signals so we can clean up properly */
   signal(SIGABRT, _EVT_abort);
   signal(SIGFPE, _EVT_abort);
   signal(SIGINT, _EVT_abort);
 }

 /****************************************************************************
 REMARKS
 Changes the range of coordinates returned by the mouse functions to the
 specified range of values. This is used when changing between graphics
 modes set the range of mouse coordinates for the new display mode.
 ****************************************************************************/
 void EVTAPI EVT_setMouseRange(
     int xRes,
     int yRes)
 {
     rangeX = xRes;
     rangeY = yRes;
 }

 /****************************************************************************
 REMARKS:
 Initiailises the internal event handling modules. The EVT_suspend function
 can be called to suspend event handling (such as when shelling out to DOS),
 and this function can be used to resume it again later.
 ****************************************************************************/
 void EVT_resume(void)
 {
     /* Do nothing for non DOS systems */
 }

 /****************************************************************************
 REMARKS
 Suspends all of our event handling operations. This is also used to
 de-install the event handling code.
 ****************************************************************************/
 void EVT_suspend(void)
 {
     /* Do nothing for non DOS systems */
 }

 /****************************************************************************
 REMARKS
 Exits the event module for program terminatation.
 ****************************************************************************/
 void EVT_exit(void)
 {
     /* Restore signal handlers */
     signal(SIGABRT, SIG_DFL);
     signal(SIGFPE, SIG_DFL);
     signal(SIGINT, SIG_DFL);

     /* TODO: Do any OS specific cleanup in here */
 }

 /****************************************************************************
 REMARKS
 Sets the current X11 display
 ****************************************************************************/
 void EVT_setX11Display(Display *dpy, Window win)
 {
   _EVT_dpy = dpy;
   _EVT_win = win;
 }
	/****************************************************************************
	*
	* SciTech OS Portability Manager Library
	*
	* ========================================================================
	*
	* The contents of this file are subject to the SciTech MGL Public
	* License Version 1.0 (the "License"); you may not use this file
	* except in compliance with the License. You may obtain a copy of
	* the License at http://www.scitechsoft.com/mgl-license.txt
	*
	* Software distributed under the License is distributed on an
	* "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
	* implied. See the License for the specific language governing
	* rights and limitations under the License.
	*
	* The Original Code is Copyright (C) 1991-1998 SciTech Software, Inc.
	*
	* The Initial Developer of the Original Code is SciTech Software, Inc.
	* All Rights Reserved.
	*
	* ========================================================================
	*
	* Language: ANSI C
	* Environment: Unix / X11
	*
	* Description: X11 event queue implementation for the MGL.
	* This can be used both for windowed and fullscreen (DGA) modes.
	*
	****************************************************************************/

	/---------------------------- Global Variables ---------------------------/

	static ushort keyUpMsg[256] = {0};/* Table of key up messages */
	static int rangeX,rangeY; /* Range of mouse coordinates */

	static Display *_EVT_dpy;
	static Window _EVT_win;

	typedef struct {
	int keycode;
	int scancode;
	} xkeymap;

	xkeymap xkeymaps[] = {
	{ 9, KB_esc},
	{24, KB_Q},
	{25, KB_W},
	{26, KB_E},
	{27, KB_R},
	{28, KB_T},
	{29, KB_Y},
	{30, KB_U},
	{31, KB_I},
	{32, KB_O},
	{33, KB_P},
	};

	/---------------------------- Implementation -----------------------------/

	/* These are not used under non-DOS systems */
	#define _EVT_disableInt() 1
	#define _EVT_restoreInt(flags)

	/****************************************************************************
	PARAMETERS:
	scanCode - Scan code to test

	REMARKS:
	This macro determines if a specified key is currently down at the
	time that the call is made.
	****************************************************************************/
	#define _EVT_isKeyDown(scanCode) (keyUpMsg[scanCode] != 0)

	/****************************************************************************
	REMARKS:
	This function is used to return the number of ticks since system
	startup in milliseconds. This should be the same value that is placed into
	the time stamp fields of events, and is used to implement auto mouse down
	events.
	****************************************************************************/
	ulong _EVT_getTicks(void)
	{
	static unsigned starttime = 0;
	struct timeval t;

	gettimeofday(&t, NULL);
	if (starttime == 0)
	starttime = t.tv_sec * 1000 + (t.tv_usec/1000);
	return ((t.tv_sec * 1000 + (t.tv_usec/1000)) - starttime);
	}

	static int getScancode(int keycode)
	{
	return keycode-8;
	}

	/****************************************************************************
	REMARKS:
	Pumps all messages in the application message queue into our event queue.
	****************************************************************************/
	#ifdef X11_CORE
	static void _EVT_pumpX11Messages(void)
	#else
	static void _EVT_pumpMessages(void)
	#endif
	{
	/* TODO: The purpose of this function is to read all keyboard and mouse */
	/* events from the OS specific event queue, translate them and post */
	/* them into the SciTech event queue. */
	event_t evt;
	XEvent ev;
	static int old_mx = 0, old_my = 0, buts = 0, c;
	char buf[2];

	while (XPending(_EVT_dpy) && XNextEvent(_EVT_dpy,&ev)) {
	evt.when = _MGL_getTicks();

	switch(ev.type){
	case KeyPress:
	c = getScancode(ev.xkey.keycode);
	evt.what = EVT_KEYDOWN;
	evt.message = c << 8;
	XLookupString(&ev.xkey, buf, 2, NULL, NULL);
	evt.message \|= buf[0];
	break;
	case KeyRelease:
	c = getScancode(ev.xkey.keycode);
	evt.what = EVT_KEYUP;
	evt.message = keyUpMsg[c];
	if(count < EVENTQSIZE)
	addEvent(&evt);
	keyUpMsg[c] = 0;
	repeatKey[c] = 0;
	break;
	case ButtonPress:
	evt.what = EVT_MOUSEDOWN;
	if(ev.xbutton.button == 1){
	buts \|= EVT_LEFTBUT;
	evt.message = EVT_LEFTBMASK;
	}else if(ev.xbutton.button == 2){
	buts \|= EVT_MIDDLEBUT;
	evt.message = EVT_MIDDLEBMASK;
	}else if(ev.xbutton.button == 3){
	buts \|= EVT_RIGHTBUT;
	evt.message = EVT_RIGHTBMASK;
	}
	evt.modifiers = modifiers \| buts;

	break;
	case ButtonRelease:
	evt.what = EVT_MOUSEUP;
	if(ev.xbutton.button == 1){
	buts &= ~EVT_LEFTBUT;
	evt.message = EVT_LEFTBMASK;
	}else if(ev.xbutton.button == 2){
	buts &= ~EVT_MIDDLEBUT;
	evt.message = EVT_MIDDLEBMASK;
	}else if(ev.xbutton.button == 3){
	buts &= ~EVT_RIGHTBUT;
	evt.message = EVT_RIGHTBMASK;
	}
	evt.modifiers = modifiers \| buts;

	break;
	case MotionNotify:
	evt.what = EVT_MOUSEMOVE;
	evt.where_x = ev.xmotion.x;
	evt.where_y = ev.xmotion.y;
	evt.relative_x = evt.where_x - old_mx;
	evt.relative_y = evt.where_y - old_my;
	old_mx = evt.where_x;
	old_my = evt.where_y;
	break;
	}
	if (count < EVENTQSIZE)
	addEvent(&evt);
	}

	}

	/****************************************************************************
	REMARKS:
	This macro/function is used to converts the scan codes reported by the
	keyboard to our event libraries normalised format. We only have one scan
	code for the 'A' key, and use shift modifiers to determine if it is a
	Ctrl-F1, Alt-F1 etc. The raw scan codes from the keyboard work this way,
	but the OS gives us 'cooked' scan codes, we have to translate them back
	to the raw format.
	****************************************************************************/
	#define _EVT_maskKeyCode(evt)

	/****************************************************************************
	REMARKS:
	Safely abort the event module upon catching a fatal error.
	****************************************************************************/
	void _EVT_abort()
	{
	EVT_exit();
	PM_fatalError("Unhandled exception!");
	}

	/****************************************************************************
	PARAMETERS:
	mouseMove - Callback function to call wheneve the mouse needs to be moved

	REMARKS:
	Initiliase the event handling module. Here we install our mouse handling ISR
	to be called whenever any button's are pressed or released. We also build
	the free list of events in the event queue.

	We use handler number 2 of the mouse libraries interrupt handlers for our
	event handling routines.
	****************************************************************************/
	#ifdef X11_CORE
	void EVTAPI EVT_initX11(
	#else
	void EVTAPI EVT_init(
	#endif
	_EVT_mouseMoveHandler mouseMove)
	{
	int result, i,j,k;
	XDeviceInfoPtr list,slist;

	/* Initialise the event queue */
	_mouseMove = mouseMove;
	initEventQueue();
	memset(keyUpMsg,0,sizeof(keyUpMsg));


	/* query server for input extensions */
	result =XQueryExtension(_EVT_dpy,"XInputExtension",&i,&j,&k);
	if(!result) {
	fprintf(stderr,"Your server doesn't support XInput Extensions\n");
	fprintf(stderr,"X11 Joystick disabled\n");
	}
	list = XListInputDevices(_EVT_dpy,&result);
	if (!list) {
	fprintf(stderr,"No extended input devices found !!\n");
	fprintf(stderr,"X11 Joystick disabled\n");
	}


	/* Catch program termination signals so we can clean up properly */
	signal(SIGABRT, _EVT_abort);
	signal(SIGFPE, _EVT_abort);
	signal(SIGINT, _EVT_abort);
	}

	/****************************************************************************
	REMARKS
	Changes the range of coordinates returned by the mouse functions to the
	specified range of values. This is used when changing between graphics
	modes set the range of mouse coordinates for the new display mode.
	****************************************************************************/
	void EVTAPI EVT_setMouseRange(
	int xRes,
	int yRes)
	{
	rangeX = xRes;
	rangeY = yRes;
	}

	/****************************************************************************
	REMARKS:
	Initiailises the internal event handling modules. The EVT_suspend function
	can be called to suspend event handling (such as when shelling out to DOS),
	and this function can be used to resume it again later.
	****************************************************************************/
	void EVT_resume(void)
	{
	/* Do nothing for non DOS systems */
	}

	/****************************************************************************
	REMARKS
	Suspends all of our event handling operations. This is also used to
	de-install the event handling code.
	****************************************************************************/
	void EVT_suspend(void)
	{
	/* Do nothing for non DOS systems */
	}

	/****************************************************************************
	REMARKS
	Exits the event module for program terminatation.
	****************************************************************************/
	void EVT_exit(void)
	{
	/* Restore signal handlers */
	signal(SIGABRT, SIG_DFL);
	signal(SIGFPE, SIG_DFL);
	signal(SIGINT, SIG_DFL);

	/* TODO: Do any OS specific cleanup in here */
	}

	/****************************************************************************
	REMARKS
	Sets the current X11 display
	****************************************************************************/
	void EVT_setX11Display(Display *dpy, Window win)
	{
	_EVT_dpy = dpy;
	_EVT_win = win;
	}