summaryrefslogtreecommitdiffstats
path: root/uisimulator/x11/screenhack.c
blob: 81650b57d720995c8dd53be95b31ed4b181ede37 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
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
179
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
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
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
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
/* xscreensaver, Copyright (c) 1992, 1995, 1997, 1998
 *  Jamie Zawinski <jwz@jwz.org>
 *
 * Permission to use, copy, modify, distribute, and sell this software and its
 * documentation for any purpose is hereby granted without fee, provided that
 * the above copyright notice appear in all copies and that both that
 * copyright notice and this permission notice appear in supporting
 * documentation.  No representations are made about the suitability of this
 * software for any purpose.  It is provided "as is" without express or 
 * implied warranty.
 *
 * And remember: X Windows is to graphics hacking as roman numerals are to
 * the square root of pi.
 */

/* This file contains simple code to open a window or draw on the root.
   The idea being that, when writing a graphics hack, you can just link
   with this .o to get all of the uninteresting junk out of the way.

   -  create a procedure `screenhack(dpy, window)'

   -  create a variable `char *progclass' which names this program's
      resource class.

   -  create a variable `char defaults []' for the default resources, and
      null-terminate it.

   -  create a variable `XrmOptionDescRec options[]' for the command-line,
      and null-terminate it.

   And that's it...
 */

#include <stdio.h>
#include <X11/Intrinsic.h>
#include <X11/IntrinsicP.h>
#include <X11/CoreP.h>
#include <X11/Shell.h>
#include <X11/StringDefs.h>
#include <X11/Xutil.h>
#include <X11/keysym.h>

#ifdef __sgi
# include <X11/SGIScheme.h>	/* for SgiUseSchemes() */
#endif /* __sgi */

#ifdef HAVE_XMU
# ifndef VMS
#  include <X11/Xmu/Error.h>
# else /* VMS */
#  include <Xmu/Error.h>
# endif
#else
# include "xmu.h"
#endif
#include "screenhack.h"
#include "version.h"
#include "vroot.h"

#ifndef isupper
# define isupper(c)  ((c) >= 'A' && (c) <= 'Z')
#endif
#ifndef _tolower
# define _tolower(c)  ((c) - 'A' + 'a')
#endif

#define KEYBOARD_GENERIC \
  "Keyboard   Rockbox\n" \
  "--------   --------------\n" \
  "+          ON\n" \
  "8          UP\n" \
  "2          DOWN\n" \
  "4          LEFT\n" \

#ifdef HAVE_LCD_BITMAP
#define KEYBOARD_SPECIFIC  \
  "6          RIGHT\n" \
  "Enter      OFF\n" \
  "5          PLAY\n" \
  "/          F1\n" \
  "*          F2\n" \
  "-          F3\n"
#else 
#define KEYBOARD_SPECIFIC  \
  "6          RIGHT/PLAY  (there's no separation between PLAY and RIGHT)\n" \
  "Enter      MENU\n"
#endif    




char having_new_lcd=True;

char *progname;
XrmDatabase db;
XtAppContext app;
Bool mono_p;

static XrmOptionDescRec default_options [] = {
  { "-root",	".root",		XrmoptionNoArg, "True" },
  { "-window",	".root",		XrmoptionNoArg, "False" },
  { "-mono",	".mono",		XrmoptionNoArg, "True" },
  { "-install",	".installColormap",	XrmoptionNoArg, "True" },
  { "-noinstall",".installColormap",	XrmoptionNoArg, "False" },
  { "-visual",	".visualID",		XrmoptionSepArg, 0 },
  { "-window-id", ".windowID",		XrmoptionSepArg, 0 },
  { 0, 0, 0, 0 }
};

static char *default_defaults[] = {
  ".root:		false",
#define GEOMETRY_POSITION 1
  "*geometry:		"
#ifdef HAVE_LCD_BITMAP
  "120x68"
#else
  "280x132" /* A bit larger that necessary */
#endif
  , /* this should be .geometry, but nooooo... */
  "*mono:		false",
  "*installColormap:	false",
  "*visualID:		default",
  "*windowID:		",
  0
};

extern Display* dpy;
extern int display_zoom;

static XrmOptionDescRec *merged_options;
static int merged_options_size;
static char **merged_defaults;

static void merge_options (void)
{
    int def_opts_size, opts_size;
    int def_defaults_size, defaults_size;

    for (def_opts_size = 0; default_options[def_opts_size].option;
         def_opts_size++)
        ;
    for (opts_size = 0; options[opts_size].option; opts_size++)
        ;

    merged_options_size = def_opts_size + opts_size;
    merged_options = (XrmOptionDescRec *)
        malloc ((merged_options_size + 1) * sizeof(*default_options));
    memcpy (merged_options, default_options,
            (def_opts_size * sizeof(*default_options)));
    memcpy (merged_options + def_opts_size, options,
            ((opts_size + 1) * sizeof(*default_options)));

    for (def_defaults_size = 0; default_defaults[def_defaults_size];
         def_defaults_size++)
        ;
    for (defaults_size = 0; defaults[defaults_size]; defaults_size++)
        ;

    merged_defaults = (char **)
        malloc ((def_defaults_size + defaults_size + 1) * sizeof (*defaults));

    memcpy (merged_defaults, default_defaults,
            def_defaults_size * sizeof(*defaults));
    memcpy (merged_defaults + def_defaults_size, defaults,
            (defaults_size + 1) * sizeof(*defaults));

    /* This totally sucks.  Xt should behave like this by default.
       If the string in `defaults' looks like ".foo", change that
       to "Progclass.foo".
    */
    {
        char **s;
        for (s = merged_defaults; *s; s++)
            if (**s == '.')
            {
                const char *oldr = *s;
                char *newr = (char *) malloc(strlen(oldr) 
                                             + strlen(progclass) + 3);
                strcpy (newr, progclass);
                strcat (newr, oldr);
                *s = newr;
            }
    }
}


/* Make the X errors print out the name of this program, so we have some
   clue which one has a bug when they die under the screensaver.
 */

static int screenhack_ehandler (Display *dpy, XErrorEvent *error)
{
    fprintf (stderr, "\nX error in %s:\n", progname);
    if (XmuPrintDefaultErrorMessage (dpy, error, stderr))
        exit (-1);
    else
        fprintf (stderr, " (nonfatal.)\n");
    return 0;
}

static Bool MapNotify_event_p (Display *dpy, XEvent *event, XPointer window)
{
    (void)dpy;
    return (event->xany.type == MapNotify &&
            event->xvisibility.window == (Window) window);
}

static Atom XA_WM_PROTOCOLS, XA_WM_DELETE_WINDOW;

/* Dead-trivial event handling: exits if "q" or "ESC" are typed.
   Exit if the WM_PROTOCOLS WM_DELETE_WINDOW ClientMessage is received.
 */
int screenhack_handle_event(Display *dpy, XEvent *event, bool *release)
{
    int key=0;

    *release = FALSE;

    switch (event->xany.type) {
    case KeyPress:
      {
          KeySym keysym;
          unsigned char c = 0;
          XLookupString (&event->xkey, &c, 1, &keysym, 0);
          key = keysym;
          /*	    fprintf(stderr, "KEY PRESSED: %c (%02x)\n", c, c); */
      }
      break;
    case KeyRelease:
      {
          KeySym keysym;
          unsigned char c = 0;
          XLookupString (&event->xkey, &c, 1, &keysym, 0);
          key = keysym;
          /* fprintf(stderr, "KEY RELEASED: %c (%02x) %x\n", c, c,
             event->xkey.keycode); */

          *release = TRUE;
      }
      break;
    case Expose:
      {
	/*
	int x=event->xexpose.width+event->xexpose.x;
	int y=event->xexpose.height+event->xexpose.y;
	screen_resized(x, y);
	fprintf(stderr, "WINDOW RESIZED to width %d height %d\n",
		x, y);
	*/
	screen_redraw();
      }
      break;
    default:
      break;
    case ButtonPress:
      fprintf(stderr, "BUTTON PRESSED: x: %d y:%d\n",event->xbutton.x,event->xbutton.y);
      break;
    case ClientMessage:
      {
          if (event->xclient.message_type != XA_WM_PROTOCOLS) {
              char *s = XGetAtomName(dpy, event->xclient.message_type);
              if (!s) s = "(null)";
              fprintf (stderr, "%s: unknown ClientMessage %s received!\n",
                       progname, s);
          }
          else if (event->xclient.data.l[0] != (int)XA_WM_DELETE_WINDOW) {
              char *s1 = XGetAtomName(dpy, event->xclient.message_type);
              char *s2 = XGetAtomName(dpy, event->xclient.data.l[0]);
              if (!s1) s1 = "(null)";
              if (!s2) s2 = "(null)";
              fprintf (stderr, "%s: unknown ClientMessage %s[%s] received!\n",
                       progname, s1, s2);
          }
          else {
              exit (0);
          }
      }
      break;
    }
    return key;
}


int screenhack_handle_events(bool *release)
{
    int key=0;
    while (XPending(dpy))
    {
        XEvent event;
        XNextEvent(dpy, &event);
        key=screenhack_handle_event(dpy, &event, release);
    }
    return key;
}


static Visual *
pick_visual (Screen *screen)
{
#ifdef USE_GL
    /* If we're linking against GL (that is, this is the version of 
       screenhack.o that the GL hacks will use, which is different from the 
       one that the non-GL hacks will use) then try to pick the "best" visual 
       by interrogating the GL library instead of by asking Xlib.  GL knows 
       better.
    */
    Visual *v = 0;
    char *string = get_string_resource ("visualID", "VisualID");
    char *s;

    if (string)
        for (s = string; *s; s++)
            if (isupper (*s)) *s = _tolower (*s);

    if (!string || !*string ||
        !strcmp (string, "gl") ||
        !strcmp (string, "best") ||
        !strcmp (string, "color") ||
        !strcmp (string, "default"))
        v = get_gl_visual (screen);		/* from ../utils/visual-gl.c */

    if (string)
        free (string);
    if (v)
        return v;
#endif /* USE_GL */

    return get_visual_resource (screen, "visualID", "VisualID", False);
}

int main (int argc, char **argv)
{
    Widget toplevel;
    Display *dpy;
    Window window;
    Screen *screen;
    Visual *visual;
    Colormap cmap;
    XEvent event;
    char version[255];

    sprintf(version,"rockboxui %s",ROCKBOXUI_VERSION);
#ifdef HAVE_LCD_BITMAP
    display_zoom=2;
    {
      char *env=getenv("RECORDER_ZOOM");
      if (env) {
        display_zoom=atoi(env);
      }
    }
#else
    display_zoom=1;
    {
      char *env=getenv("PLAYER_ZOOM");
      if (env) {
        display_zoom=atoi(env);
      }
    }
#endif

    if (argc > 1)
    {
      int x;
      for (x=1; x<argc; x++) {
	if (!strcmp("--old_lcd", argv[x])) {
	  having_new_lcd=FALSE;
	  printf("Using old LCD layout.\n");
	} else if (!strcmp("--recorder_zoom", argv[x])) {
          x++;
#ifdef HAVE_LCD_BITMAP
	  display_zoom=atoi(argv[x]);
          printf("Window zoom is %d\n", display_zoom);
#endif
	} else if (!strcmp("--player_zoom", argv[x])) {
          x++;
#ifndef HAVE_LCD_BITMAP
	  display_zoom=atoi(argv[x]);
          printf("Window zoom is %d\n", display_zoom);
#endif
	} else {
	  printf("rockboxui\n");
	  printf("Arguments:\n");
	  printf("  --old_lcd \t [Player] simulate old playermodel (ROM version<4.51)\n");
	  printf("  --player_zoom \t [Player] window zoom\n");
	  printf("  --recorder_zoom \t [Recorder] window zoom\n");
          printf(KEYBOARD_GENERIC KEYBOARD_SPECIFIC);
	  exit(0);
	}
      }
    }
    {
      static char geometry[40];
#ifdef HAVE_LCD_BITMAP
      snprintf(geometry, 40, "*geometry: %dx%d", 120*display_zoom, 68*display_zoom);
#else
      snprintf(geometry, 40, "*geometry: %dx%d", 280*display_zoom, 132*display_zoom);
#endif
      default_defaults[GEOMETRY_POSITION]=geometry;
    }
    printf(KEYBOARD_GENERIC KEYBOARD_SPECIFIC);


    merge_options ();

#ifdef __sgi
    /* We have to do this on SGI to prevent the background color from being
       overridden by the current desktop color scheme (we'd like our 
       backgrounds to be black, thanks.)  This should be the same as setting 
       the "*useSchemes: none" resource, but it's not -- if that resource is
       present in the `default_defaults' above, it doesn't work, though it
       does work when passed as an -xrm arg on the command line.  So screw it,
       turn them off from C instead.
    */
    SgiUseSchemes ("none"); 
#endif /* __sgi */

    toplevel = XtAppInitialize (&app, progclass, merged_options,
                                merged_options_size, &argc, argv,
                                merged_defaults, 0, 0);
    dpy = XtDisplay (toplevel);
    screen = XtScreen (toplevel);
    db = XtDatabase (dpy);

    XtGetApplicationNameAndClass (dpy, &progname, &progclass);

    /* half-assed way of avoiding buffer-overrun attacks. */
    if (strlen (progname) >= 100) progname[100] = 0;

    XSetErrorHandler (screenhack_ehandler);

    XA_WM_PROTOCOLS = XInternAtom (dpy, "WM_PROTOCOLS", False);
    XA_WM_DELETE_WINDOW = XInternAtom (dpy, "WM_DELETE_WINDOW", False);


    if (CellsOfScreen (DefaultScreenOfDisplay (dpy)) <= 2)
        mono_p = True;

    {
        Boolean def_visual_p;
        visual = pick_visual (screen);

        if (toplevel->core.width <= 0)
            toplevel->core.width = 600;
        if (toplevel->core.height <= 0)
            toplevel->core.height = 480;

        def_visual_p = (visual == DefaultVisualOfScreen (screen));

        if (!def_visual_p)
        {
            unsigned int bg, bd;
            Widget new;

            cmap = XCreateColormap (dpy, RootWindowOfScreen(screen),
                                    visual, AllocNone);
            bg = get_pixel_resource ("background", "Background", dpy, cmap);
            bd = get_pixel_resource ("borderColor", "Foreground", dpy, cmap);

            new = XtVaAppCreateShell (progname, progclass,
                                      topLevelShellWidgetClass, dpy,
                                      XtNmappedWhenManaged, False,
                                      XtNvisual, visual,
                                      XtNdepth, visual_depth (screen, visual),
                                      XtNwidth, toplevel->core.width,
                                      XtNheight, toplevel->core.height,
                                      XtNcolormap, cmap,
                                      XtNbackground, (Pixel) bg,
                                      XtNborderColor, (Pixel) bd,
                                      XtNinput, True,  /* for WM_HINTS */
                                      0);
            XtDestroyWidget (toplevel);
            toplevel = new;
            XtRealizeWidget (toplevel);
            window = XtWindow (toplevel);
        }
        else
        {
            XtVaSetValues (toplevel,
                           XtNmappedWhenManaged, False,
                           XtNinput, True,  /* for WM_HINTS */
                           0);
            XtRealizeWidget (toplevel);
            window = XtWindow (toplevel);

            if (get_boolean_resource ("installColormap", "InstallColormap"))
            {
                cmap = XCreateColormap (dpy, window,
                                        DefaultVisualOfScreen (XtScreen 
                                                               (toplevel)),
                                        AllocNone);
                XSetWindowColormap (dpy, window, cmap);
            }
            else
            {
                cmap = DefaultColormap (dpy, DefaultScreen (dpy));
            }
        }

        XtPopup (toplevel, XtGrabNone);

        XtVaSetValues(toplevel, XtNtitle, version, 0);

        /* For screenhack_handle_events(): select KeyPress, and
           announce that we accept WM_DELETE_WINDOW. */
        {
            XWindowAttributes xgwa;
            XGetWindowAttributes (dpy, window, &xgwa);
            XSelectInput (dpy, window, 
                          xgwa.your_event_mask | KeyPressMask | KeyRelease |
                          ButtonPressMask | ExposureMask);
            XChangeProperty (dpy, window, XA_WM_PROTOCOLS, XA_ATOM, 32,
                             PropModeReplace,
                             (unsigned char *) &XA_WM_DELETE_WINDOW, 1);
        }
    }

    XSetWindowBackground (dpy, window,
                          get_pixel_resource ("background", "Background",
                                              dpy, cmap));
    XClearWindow (dpy, window);

    /* wait for it to be mapped */
    XIfEvent (dpy, &event, MapNotify_event_p, (XPointer) window);

    XSync (dpy, False);

    screenhack (dpy, window); /* doesn't return */
    return 0;
}