/
SDL_wimppoll.c
315 lines (267 loc) · 7.85 KB
1
2
/*
SDL - Simple DirectMedia Layer
3
Copyright (C) 1997-2012 Sam Lantinga
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
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
20
slouken@libsdl.org
21
*/
22
#include "SDL_config.h"
23
24
/*
25
File added by Alan Buckley (alan_baa@hotmail.com) for RISC OS compatability
26
27
28
29
30
31
32
27 March 2003
Implements Pumping of events and WIMP polling
*/
#include "SDL.h"
#include "SDL_syswm.h"
33
34
#include "../../events/SDL_sysevents.h"
#include "../../events/SDL_events_c.h"
35
36
#include "SDL_riscosvideo.h"
#include "SDL_riscosevents_c.h"
37
#include "SDL_riscosmouse_c.h"
38
#include "../../timer/SDL_timer_c.h"
39
40
41
42
43
44
45
46
#include "memory.h"
#include "stdlib.h"
#include "ctype.h"
#include "kernel.h"
#include "swis.h"
47
#if !SDL_THREADS_DISABLED
48
49
50
#include <pthread.h>
#endif
51
52
53
#if SDL_THREADS_DISABLED
54
55
/* Timer running function */
extern void RISCOS_CheckTimer();
56
57
58
59
#else
extern int riscos_using_threads;
#endif
60
61
62
63
64
65
66
67
68
69
70
int hasFocus = 0;
int mouseInWindow = 0;
/* Flag to ensure window is correct size after a mode change */
static int resizeOnOpen = 0;
void WIMP_PumpEvents(_THIS)
{
WIMP_Poll(this, 0);
if (hasFocus) RISCOS_PollKeyboard();
if (mouseInWindow) WIMP_PollMouse(this);
71
#if SDL_THREADS_DISABLED
72
if (SDL_timer_running) RISCOS_CheckTimer();
73
#endif
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
}
void WIMP_Poll(_THIS, int waitTime)
{
_kernel_swi_regs regs;
int message[64];
unsigned int code;
int pollMask = 0;
int doPoll = 1;
int sysEvent;
int sdlWindow = this->hidden->window_handle;
if (this->PumpEvents != WIMP_PumpEvents) return;
if (waitTime > 0)
{
_kernel_swi(OS_ReadMonotonicTime, ®s, ®s);
waitTime += regs.r[0];
}
while (doPoll)
{
97
#if !SDL_THREADS_DISABLED
98
99
100
101
/* Stop thread callbacks while program is paged out */
if (riscos_using_threads) __pthread_stop_ticker();
#endif
102
103
104
if (waitTime <= 0)
{
regs.r[0] = pollMask; /* Poll Mask */
105
/* For no wait time mask out null event so we wait until something happens */
106
107
108
109
110
111
112
113
114
115
116
117
if (waitTime < 0) regs.r[0] |= 1;
regs.r[1] = (int)message;
_kernel_swi(Wimp_Poll, ®s, ®s);
} else
{
regs.r[0] = pollMask;
regs.r[1] = (int)message;
regs.r[2] = waitTime;
_kernel_swi(Wimp_PollIdle, ®s, ®s);
}
/* Flag to specify if we post a SDL_SysWMEvent */
118
sysEvent = 0;
119
120
121
code = (unsigned int)regs.r[0];
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
switch(code)
{
case 0: /* Null Event - drop out for standard processing*/
doPoll = 0;
break;
case 1: /* Redraw window */
_kernel_swi(Wimp_RedrawWindow, ®s,®s);
if (message[0] == sdlWindow)
{
while (regs.r[0])
{
WIMP_PlotSprite(this, message[1], message[2]);
_kernel_swi(Wimp_GetRectangle, ®s, ®s);
}
} else
{
/* TODO: Currently we just eat them - we may need to pass them on */
while (regs.r[0])
{
_kernel_swi(Wimp_GetRectangle, ®s, ®s);
}
}
break;
146
147
148
149
150
151
case 2: /* Open window */
if ( resizeOnOpen && message[0] == sdlWindow)
{
/* Ensure window is correct size */
resizeOnOpen = 0;
152
153
message[3] = message[1] + (this->screen->w << 1);
message[4] = message[2] + (this->screen->h << 1);
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
}
_kernel_swi(Wimp_OpenWindow, ®s, ®s);
break;
case 3: /* Close window */
if (message[0] == sdlWindow)
{
/* Documentation makes it looks as if the following line is correct:
** if (SDL_PrivateQuit() == 1) _kernel_swi(Wimp_CloseWindow, ®s, ®s);
** However some programs don't process this message and so sit there invisibly
** in the background so I just post the quit message and hope the application
** does the correct thing.
*/
SDL_PrivateQuit();
} else
sysEvent = 1;
doPoll = 0;
break;
case 4: /* Pointer_Leaving_Window */
if (message[0] == sdlWindow)
{
mouseInWindow = 0;
//TODO: Lose buttons / dragging
/* Reset to default pointer */
179
WIMP_RestoreWimpCursor();
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
SDL_PrivateAppActive(0, SDL_APPMOUSEFOCUS);
} else
sysEvent = 1;
break;
case 5: /* Pointer_Entering_Window */
if (message[0] == sdlWindow)
{
mouseInWindow = 1;
WIMP_ReshowCursor(this);
SDL_PrivateAppActive(1, SDL_APPMOUSEFOCUS);
} else sysEvent = 1;
break;
case 6: /* Mouse_Click */
if (hasFocus == 0)
{
/* First click gives focus if it's not a menu */
/* we only count non-menu clicks on a window that has the focus */
WIMP_SetFocus(message[3]);
} else
doPoll = 0; // So PollMouse gets a chance to pick it up
break;
case 7: /* User_Drag_Box - Used for mouse release */
//TODO: May need to implement this in the future
sysEvent = 1;
break;
case 8: /* Keypressed */
doPoll = 0; /* PollKeyboard should pick it up */
if (message[0] != sdlWindow) sysEvent = 1;
/*TODO: May want to always pass F12 etc to the wimp
{
regs.r[0] = message[6];
_kernel_swi(Wimp_ProcessKey, ®s, ®s);
}
*/
break;
case 11: /* Lose Caret */
hasFocus = 0;
if (message[0] == sdlWindow) SDL_PrivateAppActive(0, SDL_APPINPUTFOCUS);
else sysEvent = 1;
break;
case 12: /* Gain Caret */
hasFocus = 1;
if (message[0] == sdlWindow) SDL_PrivateAppActive(1, SDL_APPINPUTFOCUS);
else sysEvent = 1;
break;
case 17:
case 18:
sysEvent = 1; /* All messages are passed on */
switch(message[4])
{
case 0: /* Quit Event */
/* No choice - have to quit */
SDL_Quit();
241
exit(0);
242
243
244
245
246
247
248
break;
case 8: /* Pre Quit */
SDL_PrivateQuit();
break;
case 0x400c1: /* Mode change */
249
250
WIMP_ReadModeInfo(this);
WIMP_SetupPlotInfo(this);
251
252
253
254
resizeOnOpen = 1;
break;
case 9: /* Palette changed */
255
WIMP_SetupPlotInfo(this);
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
break;
}
break;
default:
/* Pass unknown events on */
sysEvent = 1;
break;
}
if (sysEvent)
{
SDL_SysWMmsg wmmsg;
SDL_VERSION(&wmmsg.version);
wmmsg.eventCode = code;
272
SDL_memcpy(wmmsg.pollBlock, message, 64 * sizeof(int));
273
274
275
276
/* Fall out of polling loop if message is successfully posted */
if (SDL_PrivateSysWMEvent(&wmmsg)) doPoll = 0;
}
277
#if !SDL_THREADS_DISABLED
278
279
280
281
282
283
284
285
286
if (riscos_using_threads)
{
/* Restart ticker here so other thread can not interfere
with the Redraw processing */
if (riscos_using_threads) __pthread_start_ticker();
/* Give other threads a better chance of running */
pthread_yield();
}
#endif
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
}
}
/* Set focus to specified window */
void WIMP_SetFocus(int win)
{
_kernel_swi_regs regs;
regs.r[0] = win;
regs.r[1] = -1; /* Icon handle */
regs.r[2] = 0; /* X-offset we just put it at position 0 */
regs.r[3] = 0; /* Y-offset as above */
regs.r[4] = 1 << 25; /* Caret is invisible */
regs.r[5] = 0; /* index into string */
_kernel_swi(Wimp_SetCaretPosition, ®s, ®s);
}
/** Run background task while in a sleep command */
void RISCOS_BackgroundTasks(void)
{
if (current_video && current_video->hidden->window_handle)
{
WIMP_Poll(current_video, 0);
}
312
#if SDL_THREADS_DISABLED
313
if (SDL_timer_running) RISCOS_CheckTimer();
314
#endif
315
}