SDL_dgaevents.c
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/*
SDL - Simple DirectMedia Layer
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Copyright (C) 1997-2009 Sam Lantinga
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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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
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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Sam Lantinga
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slouken@libsdl.org
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*/
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#include "SDL_config.h"
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/* Handle the event stream, converting DGA events into SDL events */
#include <stdio.h>
#include <X11/Xlib.h>
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#include "../Xext/extensions/xf86dga.h"
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#include "../SDL_sysvideo.h"
#include "../../events/SDL_events_c.h"
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#include "SDL_dgavideo.h"
#include "SDL_dgaevents_c.h"
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/* get function pointers... */
#include "../x11/SDL_x11dyn.h"
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/* Heheh we're using X11 event code */
extern int X11_Pending(Display *display);
extern void X11_InitKeymap(void);
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extern SDLKey X11_TranslateKeycode(Display *display, KeyCode kc);
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static int DGA_DispatchEvent(_THIS)
{
int posted;
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SDL_NAME(XDGAEvent) xevent;
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XNextEvent(DGA_Display, (XEvent *)&xevent);
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posted = 0;
xevent.type -= DGA_event_base;
switch (xevent.type) {
/* Mouse motion? */
case MotionNotify: {
if ( SDL_VideoSurface ) {
posted = SDL_PrivateMouseMotion(0, 1,
xevent.xmotion.dx, xevent.xmotion.dy);
}
}
break;
/* Mouse button press? */
case ButtonPress: {
posted = SDL_PrivateMouseButton(SDL_PRESSED,
xevent.xbutton.button, 0, 0);
}
break;
/* Mouse button release? */
case ButtonRelease: {
posted = SDL_PrivateMouseButton(SDL_RELEASED,
xevent.xbutton.button, 0, 0);
}
break;
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/* Key press? */
case KeyPress: {
SDL_keysym keysym;
KeyCode keycode;
XKeyEvent xkey;
SDL_NAME(XDGAKeyEventToXKeyEvent)(&xevent.xkey, &xkey);
keycode = xkey.keycode;
#ifdef DEBUG_XEVENTS
printf("KeyPress (X11 keycode = 0x%X)\n", xkey.keycode);
#endif
/* Get the translated SDL virtual keysym */
keysym.scancode = keycode;
keysym.sym = X11_TranslateKeycode(DGA_Display, keycode);
keysym.mod = KMOD_NONE;
keysym.unicode = 0;
/* Look up the translated value for the key event */
if ( SDL_TranslateUNICODE ) {
static XComposeStatus state;
char keybuf[32];
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if ( XLookupString(&xkey, keybuf, sizeof(keybuf), NULL, &state) ) {
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/*
* FIXME: XLookupString() may yield more than one
* character, so we need a mechanism to allow for
* this (perhaps null keypress events with a
* unicode value)
*/
keysym.unicode = (Uint8)keybuf[0];
}
}
posted = SDL_PrivateKeyboard(SDL_PRESSED, &keysym);
}
break;
/* Key release? */
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case KeyRelease: {
SDL_keysym keysym;
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KeyCode keycode;
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XKeyEvent xkey;
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SDL_NAME(XDGAKeyEventToXKeyEvent)(&xevent.xkey, &xkey);
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keycode = xkey.keycode;
#ifdef DEBUG_XEVENTS
printf("KeyRelease (X11 keycode = 0x%X)\n", xkey.keycode);
#endif
/* Get the translated SDL virtual keysym */
keysym.scancode = keycode;
keysym.sym = X11_TranslateKeycode(DGA_Display, keycode);
keysym.mod = KMOD_NONE;
keysym.unicode = 0;
posted = SDL_PrivateKeyboard(SDL_RELEASED, &keysym);
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}
break;
}
return(posted);
}
void DGA_PumpEvents(_THIS)
{
/* Keep processing pending events */
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LOCK_DISPLAY();
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/* Update activity every five seconds to prevent screensaver. --ryan. */
if (!allow_screensaver) {
static Uint32 screensaverTicks;
Uint32 nowTicks = SDL_GetTicks();
if ((nowTicks - screensaverTicks) > 5000) {
XResetScreenSaver(DGA_Display);
screensaverTicks = nowTicks;
}
}
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while ( X11_Pending(DGA_Display) ) {
DGA_DispatchEvent(this);
}
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UNLOCK_DISPLAY();
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}
void DGA_InitOSKeymap(_THIS)
{
X11_InitKeymap();
}