1 /*
2 SDL - Simple DirectMedia Layer
3 Copyright (C) 1997-2012 Sam Lantinga
4
5 This library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
9
10 This library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public
16 License along with this library; if not, write to the Free Software
17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
18
19 Sam Lantinga
20 slouken@libsdl.org
21 */
22 #include "SDL_config.h"
23
24 /* Handle the event stream, converting DGA events into SDL events */
25
26 #include <stdio.h>
27 #include <X11/Xlib.h>
28 #include "../Xext/extensions/xf86dga.h"
29
30 #include "SDL_timer.h"
31 #include "../SDL_sysvideo.h"
32 #include "../../events/SDL_events_c.h"
33 #include "SDL_dgavideo.h"
34 #include "SDL_dgaevents_c.h"
35
36 /* get function pointers... */
37 #include "../x11/SDL_x11dyn.h"
38
39 /* Heheh we're using X11 event code */
40 extern int X11_Pending(Display *display);
41 extern void X11_InitKeymap(void);
42 extern SDLKey X11_TranslateKeycode(Display *display, KeyCode kc);
43
DGA_DispatchEvent(_THIS)44 static int DGA_DispatchEvent(_THIS)
45 {
46 int posted;
47 SDL_NAME(XDGAEvent) xevent;
48
49 XNextEvent(DGA_Display, (XEvent *)&xevent);
50
51 posted = 0;
52 xevent.type -= DGA_event_base;
53 switch (xevent.type) {
54
55 /* Mouse motion? */
56 case MotionNotify: {
57 if ( SDL_VideoSurface ) {
58 posted = SDL_PrivateMouseMotion(0, 1,
59 xevent.xmotion.dx, xevent.xmotion.dy);
60 }
61 }
62 break;
63
64 /* Mouse button press? */
65 case ButtonPress: {
66 posted = SDL_PrivateMouseButton(SDL_PRESSED,
67 xevent.xbutton.button, 0, 0);
68 }
69 break;
70
71 /* Mouse button release? */
72 case ButtonRelease: {
73 posted = SDL_PrivateMouseButton(SDL_RELEASED,
74 xevent.xbutton.button, 0, 0);
75 }
76 break;
77
78 /* Key press? */
79 case KeyPress: {
80 SDL_keysym keysym;
81 KeyCode keycode;
82 XKeyEvent xkey;
83
84 SDL_NAME(XDGAKeyEventToXKeyEvent)(&xevent.xkey, &xkey);
85 keycode = xkey.keycode;
86 #ifdef DEBUG_XEVENTS
87 printf("KeyPress (X11 keycode = 0x%X)\n", xkey.keycode);
88 #endif
89 /* Get the translated SDL virtual keysym */
90 keysym.scancode = keycode;
91 keysym.sym = X11_TranslateKeycode(DGA_Display, keycode);
92 keysym.mod = KMOD_NONE;
93 keysym.unicode = 0;
94
95 /* Look up the translated value for the key event */
96 if ( SDL_TranslateUNICODE ) {
97 static XComposeStatus state;
98 char keybuf[32];
99
100 if ( XLookupString(&xkey, keybuf, sizeof(keybuf), NULL, &state) ) {
101 /*
102 * FIXME: XLookupString() may yield more than one
103 * character, so we need a mechanism to allow for
104 * this (perhaps null keypress events with a
105 * unicode value)
106 */
107 keysym.unicode = (Uint8)keybuf[0];
108 }
109 }
110 posted = SDL_PrivateKeyboard(SDL_PRESSED, &keysym);
111 }
112 break;
113
114 /* Key release? */
115 case KeyRelease: {
116 SDL_keysym keysym;
117 KeyCode keycode;
118 XKeyEvent xkey;
119
120 SDL_NAME(XDGAKeyEventToXKeyEvent)(&xevent.xkey, &xkey);
121 keycode = xkey.keycode;
122 #ifdef DEBUG_XEVENTS
123 printf("KeyRelease (X11 keycode = 0x%X)\n", xkey.keycode);
124 #endif
125 /* Get the translated SDL virtual keysym */
126 keysym.scancode = keycode;
127 keysym.sym = X11_TranslateKeycode(DGA_Display, keycode);
128 keysym.mod = KMOD_NONE;
129 keysym.unicode = 0;
130 posted = SDL_PrivateKeyboard(SDL_RELEASED, &keysym);
131 }
132 break;
133 }
134 return(posted);
135 }
136
DGA_PumpEvents(_THIS)137 void DGA_PumpEvents(_THIS)
138 {
139 /* Keep processing pending events */
140 LOCK_DISPLAY();
141
142 /* Update activity every five seconds to prevent screensaver. --ryan. */
143 if (!allow_screensaver) {
144 static Uint32 screensaverTicks;
145 Uint32 nowTicks = SDL_GetTicks();
146 if ((nowTicks - screensaverTicks) > 5000) {
147 XResetScreenSaver(DGA_Display);
148 screensaverTicks = nowTicks;
149 }
150 }
151
152 while ( X11_Pending(DGA_Display) ) {
153 DGA_DispatchEvent(this);
154 }
155
156 UNLOCK_DISPLAY();
157 }
158
DGA_InitOSKeymap(_THIS)159 void DGA_InitOSKeymap(_THIS)
160 {
161 X11_InitKeymap();
162 }
163
164