view src/video/picogui/SDL_pgevents.c @ 1199:2d6dc7de1145

From: Mike Frysinger <vapier@gentoo.org> To: sdl@libsdl.org Date: Sun, 11 Dec 2005 22:57:37 -0500 Subject: [SDL] exec stack in libsdl update i posted back in September a patch to remove executable stacks: http://www.devolution.com/pipermail/sdl/2005-September/070626.html later in November, a similar patch was merged it seems: http://www.libsdl.org/cgi/cvsweb.cgi/SDL12/src/hermes/mmx_main.asm however, this lacks the additional output format checks that i posted in my patch ... this isnt a problem if the hermes asm code is only ever used to produce ELF objects, but if this is not true, then the additional checks in my original patch will need to be merged -mike
author Ryan C. Gordon <icculus@icculus.org>
date Mon, 12 Dec 2005 09:13:12 +0000
parents b8d311d90021
children c9b51268668f
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/*
    SDL - Simple DirectMedia Layer
    Copyright (C) 1997-2004 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

    Micah Dowty
    micahjd@users.sourceforge.net
*/

#ifdef SAVE_RCSID
static char rcsid =
 "@(#) $Id$";
#endif

#include "SDL.h"
#include "SDL_sysevents.h"
#include "SDL_events_c.h"
#include "SDL_pgvideo.h"
#include "SDL_pgevents_c.h"

int PG_HandleClose(struct pgEvent *evt)
{
        SDL_PrivateQuit();
	return 1;               /* Intercept the event's normal quit handling */
}

int PG_HandleResize(struct pgEvent *evt)
{
        SDL_PrivateResize(evt->e.size.w, evt->e.size.h);
	return 0;
}

int PG_HandleKey(struct pgEvent *evt)
{
        SDL_keysym sym;
	memset(&sym,0,sizeof(sym));
	sym.sym = evt->e.kbd.key;
	sym.mod = evt->e.kbd.mods;
        SDL_PrivateKeyboard(evt->type == PG_WE_KBD_KEYDOWN, &sym);
	return 0;
}

int PG_HandleChar(struct pgEvent *evt)
{
        SDL_keysym sym;
	memset(&sym,0,sizeof(sym));
	sym.unicode = evt->e.kbd.key;
	sym.mod = evt->e.kbd.mods;
        SDL_PrivateKeyboard(evt->type == PG_WE_KBD_KEYDOWN, &sym);
	return 0;
}

int PG_HandleMouseButton(struct pgEvent *evt)
{        
        /* We need to focus the canvas when it's clicked */
        if (evt->extra) {
	        SDL_VideoDevice *this = (SDL_VideoDevice *) evt->extra;
		pgFocus(this->hidden->wCanvas);
	}
        SDL_PrivateMouseButton(evt->type == PG_WE_PNTR_DOWN, evt->e.pntr.chbtn,
			       evt->e.pntr.x, evt->e.pntr.y);
	return 0;
}

int PG_HandleMouseMotion(struct pgEvent *evt)
{
        SDL_PrivateMouseMotion(evt->e.pntr.btn,0,evt->e.pntr.x, evt->e.pntr.y);
	return 0;
}

void PG_PumpEvents(_THIS)
{
        /* Process all pending events */
        pgEventPoll();
}

void PG_InitOSKeymap(_THIS)
{
        /* We need no keymap */
}

void PG_InitEvents(_THIS)
{
        /* Turn on all the mouse and keyboard triggers for our canvas, normally less important
	 * events like mouse movement are ignored to save bandwidth. */
        pgSetWidget(this->hidden->wCanvas, PG_WP_TRIGGERMASK, 
		    pgGetWidget(this->hidden->wCanvas, PG_WP_TRIGGERMASK) |
		    PG_TRIGGER_UP | PG_TRIGGER_DOWN | PG_TRIGGER_MOVE |
		    PG_TRIGGER_KEYUP | PG_TRIGGER_KEYDOWN | PG_TRIGGER_CHAR,0);

	/* Start our canvas out focused, so we get keyboard input */
	pgFocus(this->hidden->wCanvas);

        /* Set up bindings for all the above event handlers */
        pgBind(this->hidden->wApp,    PG_WE_CLOSE, &PG_HandleClose, NULL);
        pgBind(this->hidden->wCanvas, PG_WE_BUILD, &PG_HandleResize, NULL);
        pgBind(this->hidden->wCanvas, PG_WE_KBD_CHAR, &PG_HandleChar, NULL);
        pgBind(this->hidden->wCanvas, PG_WE_KBD_KEYUP, &PG_HandleKey, NULL);
        pgBind(this->hidden->wCanvas, PG_WE_KBD_KEYDOWN, &PG_HandleKey, NULL);
        pgBind(this->hidden->wCanvas, PG_WE_PNTR_MOVE, &PG_HandleMouseMotion, NULL);
        pgBind(this->hidden->wCanvas, PG_WE_PNTR_UP, &PG_HandleMouseButton, NULL);
        pgBind(this->hidden->wCanvas, PG_WE_PNTR_DOWN, &PG_HandleMouseButton, this);
}

/* end of SDL_pgevents.c ... */