workbench/tools/commodities/Blanker.c

   1 /*
   2     Copyright © 1995-2006, The AROS Development Team. All rights reserved.
   3     $Id$
   4 */
   5
   6 #include <aros/symbolsets.h>
   7 #include <workbench/startup.h>
   8 #include <intuition/intuition.h>
   9 #include <intuition/intuitionbase.h>
  10 #include <graphics/gfx.h>
  11 #include <graphics/gfxbase.h>
  12 #include <libraries/commodities.h>
  13 #include <libraries/locale.h>
  14 #include <proto/exec.h>
  15 #include <proto/dos.h>
  16 #include <proto/intuition.h>
  17 #include <proto/graphics.h>
  18 #include <proto/commodities.h>
  19 #include <proto/alib.h>
  20 #include <proto/locale.h>
  21 #include <proto/icon.h>
  22
  23 #ifdef __AROS__
  24 #    include <aros/debug.h>
  25 #else
  26 #    undef kprintf
  27 #    define kprintf(...) (void)0
  28 # ifndef __MORPHOS__
  29      typedef ULONG IPTR;
  30 # endif
  31 #endif
  32
  33
  34 #include <stdio.h>
  35 #include <stdlib.h>
  36
  37 #define CATCOMP_ARRAY
  38 #include "strings.h"
  39
  40 #define CATALOG_NAME     "System/Tools/Commodities.catalog"
  41 #define CATALOG_VERSION  2
  42
  43
  44 /************************************************************************************/
  45
  46 UBYTE version[] = "$VER: Blanker 0.11 (15.04.2006)";
  47
  48 #define ARG_TEMPLATE "CX_PRIORITY=PRI/N/K,SECONDS=SEC/N/K,STARS=ST/N/K"
  49
  50 #define ARG_PRI         0
  51 #define ARG_SEC         1
  52 #define ARG_STARS       2
  53 #define NUM_ARGS        3
  54
  55 #define MAX_STARS       1000
  56
  57 #define CMD_STARTBLANK  1
  58 #define CMD_STOPBLANK   2
  59
  60 #ifdef __MORPHOS__
  61 static void BlankerAction(void);
  62
  63 static struct EmulLibEntry BlankerActionEntry =
  64 {
  65    TRAP_LIB,
  66    0,
  67    (void (*)(void))BlankerAction
  68 };
  69 #endif
  70
  71 static struct NewBroker nb =
  72 {
  73    NB_VERSION,
  74    NULL,
  75    NULL,
  76    NULL,
  77    NBU_NOTIFY | NBU_UNIQUE,
  78    0,
  79    0,
  80    NULL,
  81    0
  82 };
  83
  84
  85 static struct MsgPort   *cxport;
  86 static struct Window    *win;
  87 static struct RastPort  *rp;
  88 static struct ColorMap  *cm;
  89 static struct Task      *maintask;
  90
  91 static struct Catalog   *catalog;
  92 static struct RDArgs    *myargs;
  93 static CxObj            *cxbroker, *cxcust;
  94 static ULONG            cxmask, actionmask;
  95 static WORD             scrwidth, scrheight, actioncmd, visible_sky;
  96 static LONG             blackpen, star1pen, star2pen, star3pen;
  97 static WORD             num_stars = 200, blankwait = 30;
  98 static UBYTE            actionsig;
  99 static BOOL             blanked, quitme, disabled, pens_allocated;
 100
 101 static LONG             args[NUM_ARGS];
 102 static char             s[256];
 103 static WORD             star_x[MAX_STARS], star_y[MAX_STARS],
 104                         star_speed[MAX_STARS], star_col[MAX_STARS];
 105
 106 /************************************************************************************/
 107
 108 static CONST_STRPTR _(ULONG id)
 109 {
 110     if (LocaleBase != NULL && catalog != NULL)
 111     {
 112         return GetCatalogStr(catalog, id, CatCompArray[id].cca_Str);
 113     }
 114     else
 115     {
 116         return CatCompArray[id].cca_Str;
 117     }
 118 }
 119
 120 /************************************************************************************/
 121
 122 static BOOL Locale_Initialize(VOID)
 123 {
 124     if (LocaleBase != NULL)
 125     {
 126         catalog = OpenCatalog
 127             (
 128              NULL, CATALOG_NAME, OC_Version, CATALOG_VERSION, TAG_DONE
 129             );
 130     }
 131     else
 132     {
 133         catalog = NULL;
 134     }
 135
 136     return TRUE;
 137 }
 138
 139 /************************************************************************************/
 140
 141 static VOID Locale_Deinitialize(VOID)
 142 {
 143     if(LocaleBase != NULL && catalog != NULL) CloseCatalog(catalog);
 144 }
 145
 146 /************************************************************************************/
 147
 148 static void showSimpleMessage(CONST_STRPTR msgString)
 149 {
 150     struct EasyStruct easyStruct;
 151
 152     easyStruct.es_StructSize    = sizeof(easyStruct);
 153     easyStruct.es_Flags         = 0;
 154     easyStruct.es_Title         = _(MSG_BLANKER_CXNAME);
 155     easyStruct.es_TextFormat    = msgString;
 156     easyStruct.es_GadgetFormat  = _(MSG_OK);
 157
 158     if (IntuitionBase != NULL && !Cli() )
 159     {
 160         EasyRequestArgs(NULL, &easyStruct, NULL, NULL);
 161     }
 162     else
 163     {
 164         PutStr(msgString);
 165     }
 166 }
 167
 168 /************************************************************************************/
 169
 170 static void FreePens(void)
 171 {
 172     if (pens_allocated)
 173     {
 174         ReleasePen(cm, blackpen);
 175         ReleasePen(cm, star1pen);
 176         ReleasePen(cm, star2pen);
 177         ReleasePen(cm, star3pen);
 178
 179         pens_allocated = FALSE;
 180     }
 181 }
 182
 183 /************************************************************************************/
 184
 185 static void Cleanup(CONST_STRPTR msg)
 186 {
 187     struct Message  *cxmsg;
 188
 189     if(msg)
 190     {
 191         puts(msg);
 192     }
 193
 194     if(IntuitionBase)
 195     {
 196         if(win)
 197         {
 198             FreePens();
 199             CloseWindow(win);
 200         }
 201     }
 202
 203     if(CxBase)
 204     {
 205
 206         if(cxbroker)
 207             DeleteCxObjAll(cxbroker);
 208
 209         if(cxport)
 210         {
 211             while((cxmsg = GetMsg(cxport)))
 212             {
 213                 ReplyMsg(cxmsg);
 214             }
 215
 216             DeleteMsgPort(cxport);
 217         }
 218     }
 219
 220     if(myargs)
 221         FreeArgs(myargs);
 222
 223     if(actionsig)
 224         FreeSignal(actionsig);
 225
 226     exit(0);
 227 }
 228
 229 /************************************************************************************/
 230
 231 static void DosError(void)
 232 {
 233     Fault(IoErr(), 0, s, sizeof (s));
 234     Cleanup(s);
 235 }
 236
 237 /************************************************************************************/
 238
 239 static void Init(void)
 240 {
 241     maintask = FindTask(0);
 242     actionsig = AllocSignal(-1);
 243     actionmask = 1L << actionsig;
 244 }
 245
 246 /************************************************************************************/
 247
 248 static void GetArguments(int argc, char **argv)
 249 {
 250     if (argc == 0)
 251     {
 252         UBYTE **array = ArgArrayInit(argc, (UBYTE **)argv);
 253         nb.nb_Pri = ArgInt(array, "CX_PRIORITY", 0);
 254         blankwait = ArgInt(array, "SECONDS"    , blankwait);
 255         num_stars = ArgInt(array, "STARS"      , num_stars);
 256         ArgArrayDone();
 257     }
 258     else
 259     {
 260         if (!(myargs = ReadArgs(ARG_TEMPLATE, args, 0)))
 261         {
 262             DosError();
 263         }
 264
 265         if (args[ARG_PRI]) nb.nb_Pri = *(LONG *)args[ARG_PRI];
 266
 267         if (args[ARG_SEC]) blankwait = *(LONG *)args[ARG_SEC];
 268
 269         if (args[ARG_STARS]) num_stars = *(LONG *)args[ARG_STARS];
 270     }
 271
 272     if (num_stars < 0)
 273     {
 274         num_stars = 0;
 275     }
 276     else if (num_stars > MAX_STARS)
 277     {
 278         num_stars = MAX_STARS;
 279     }
 280 }
 281
 282 /************************************************************************************/
 283
 284 #ifdef __MORPHOS__
 285 static void BlankerAction(void)
 286 #else
 287 static void BlankerAction(CxMsg *msg,CxObj *obj)
 288 #endif
 289 {
 290 #ifdef __MORPHOS__
 291     CxMsg *msg = (CxMsg *)REG_A0;
 292     CxObj *obj = (CxObj *)REG_A1;
 293 #endif
 294     struct InputEvent *ie = (struct InputEvent *)CxMsgData(msg);
 295     static ULONG       timecounter = 0;
 296
 297     if (ie->ie_Class == IECLASS_TIMER)
 298     {
 299         if (disabled)
 300         {
 301             timecounter = 0;
 302         }
 303         else if (!blanked)
 304         {
 305             timecounter++;
 306
 307             if(timecounter >= blankwait * 10)
 308             {
 309                 actioncmd = CMD_STARTBLANK;
 310                 Signal(maintask, actionmask);
 311
 312                 blanked = TRUE;
 313             }
 314         }
 315     }
 316     else if ((ie->ie_Class == IECLASS_RAWMOUSE) || (ie->ie_Class == IECLASS_RAWKEY))
 317     {
 318         if (ie->ie_Class != IECLASS_TIMER)
 319         {
 320             timecounter = 0;
 321
 322             if (blanked)
 323             {
 324                 actioncmd = CMD_STOPBLANK;
 325                 Signal(maintask, actionmask);
 326
 327                 blanked = FALSE;
 328             }
 329         }
 330     }
 331 }
 332
 333 /************************************************************************************/
 334
 335 static void InitCX(void)
 336 {
 337     if (!(cxport = CreateMsgPort()))
 338     {
 339         Cleanup(_(MSG_CANT_CREATE_MSGPORT));
 340     }
 341
 342     nb.nb_Port = cxport;
 343
 344     cxmask = 1L << cxport->mp_SigBit;
 345
 346     if (!(cxbroker = CxBroker(&nb, 0)))
 347     {
 348         Cleanup(_(MSG_CANT_CREATE_BROKER));
 349     }
 350
 351 #ifdef __MORPHOS__
 352     if (!(cxcust = CxCustom(&BlankerActionEntry, 0)))
 353 #else
 354         if (!(cxcust = CxCustom(BlankerAction, 0)))
 355 #endif
 356         {
 357             Cleanup(_(MSG_CANT_CREATE_CUSTOM));
 358         }
 359
 360     AttachCxObj(cxbroker, cxcust);
 361     ActivateCxObj(cxbroker, 1);
 362
 363 }
 364
 365 /************************************************************************************/
 366
 367 #define MY_RAND_MAX 32767
 368
 369 static LONG myrand(void)
 370 {
 371     static LONG a = 1;
 372
 373     return (a = a * 1103515245 + 12345) & MY_RAND_MAX;
 374 }
 375
 376 /************************************************************************************/
 377
 378 static void HandleWin(void);
 379
 380 /************************************************************************************/
 381
 382 static void MakeWin(void)
 383 {
 384     struct Screen  *screenPtr;
 385     WORD            y, y2, stripheight = 20;
 386     LONG            i;
 387
 388     if(!(screenPtr = LockPubScreen(NULL)))
 389         kprintf("Warning: LockPubScreen() failed!\n");
 390
 391     win = OpenWindowTags(0, WA_Left, 0,
 392             WA_Top, 0,
 393             WA_Width, screenPtr->Width,
 394             WA_Height, screenPtr->Height,
 395             WA_AutoAdjust, TRUE,
 396             WA_BackFill, (IPTR)LAYERS_NOBACKFILL,
 397             WA_SimpleRefresh, TRUE,
 398             WA_Borderless, TRUE,
 399             TAG_DONE);
 400
 401     if(screenPtr)
 402         UnlockPubScreen(NULL, screenPtr);
 403
 404     if(win)
 405     {
 406         rp = win->RPort;
 407
 408         scrwidth  = win->Width;
 409         scrheight = win->Height;
 410
 411         cm = win->WScreen->ViewPort.ColorMap;
 412
 413         blackpen = ObtainBestPenA(cm, 0x00000000, 0x00000000, 0x00000000, NULL);
 414         star1pen = ObtainBestPenA(cm, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, NULL);
 415         star2pen = ObtainBestPenA(cm, 0xAAAAAAAA, 0xAAAAAAAA, 0xAAAAAAAA, NULL);
 416         star3pen = ObtainBestPenA(cm, 0x88888888, 0x88888888, 0x88888888, NULL);
 417
 418         pens_allocated = TRUE;
 419
 420         for(i = 0;i < num_stars;i++)
 421         {
 422             star_x[i] = myrand() * scrwidth / MY_RAND_MAX;
 423             star_y[i] = 1 + (myrand() * (scrheight - 2)) / MY_RAND_MAX;
 424             star_speed[i] = 1 + myrand() * 3 / MY_RAND_MAX;
 425             if (star_speed[i] < 2)
 426             {
 427                 star_col[i] = star3pen;
 428             }
 429             else if (star_speed[i] < 3)
 430             {
 431                 star_col[i] = star2pen;
 432             }
 433             else
 434             {
 435                 star_col[i] = star1pen;
 436             }
 437         }
 438
 439         SetAPen(rp, blackpen);
 440         for(y = 0;y < scrheight - 1;y++, stripheight++)
 441         {
 442             if (CheckSignal(actionmask))
 443             {
 444                 if (actioncmd == CMD_STOPBLANK)
 445                 {
 446                     FreePens();
 447                     CloseWindow(win);
 448                     win = 0;
 449                     break;
 450                 }
 451             }
 452
 453             for(y2 = y;y2 < scrheight - 1;y2 += stripheight)
 454             {
 455                 ClipBlit(rp, 0, y2, rp, 0, y2 + 1, scrwidth, scrheight - y2 - 1, 192);
 456                 SetAPen(rp, blackpen);
 457                 RectFill(rp, 0, y2, scrwidth - 1, y2);
 458
 459 #if 0
 460                 if (y2 == y)
 461                 {
 462                     for(i = 0; i < num_stars; i++)
 463                     {
 464                         if (star_y[i] == y2)
 465                         {
 466                             SetAPen(rp, star_col[i]);
 467                             WritePixel(rp, star_x[i], y2);
 468                         }
 469                     }
 470
 471                 } /* if (y2 == y) */
 472 #endif
 473
 474             } /* for(y2 = y;y2 < scrheight - 1;y2 += stripheight) */
 475
 476             visible_sky = y;
 477
 478             HandleWin();
 479
 480             WaitTOF();
 481
 482         } /* for(y = 0;y < scrheight - 1;y++, stripheight++) */
 483
 484     } /* if (win) */
 485     else
 486     {
 487         showSimpleMessage(_(MSG_CANT_CREATE_WIN));
 488     }
 489 }
 490
 491 /************************************************************************************/
 492
 493 static void HandleWin(void)
 494 {
 495     LONG i;
 496
 497     for(i = 0; i < num_stars;i++)
 498     {
 499         if (star_y[i] <= visible_sky)
 500         {
 501             SetAPen(rp, blackpen);
 502             WritePixel(rp, star_x[i], star_y[i]);
 503
 504             star_x[i] -= star_speed[i];
 505             if (star_x[i] < 0) star_x[i] += scrwidth;
 506
 507             SetAPen(rp, star_col[i]);
 508             WritePixel(rp, star_x[i], star_y[i]);
 509         }
 510     }
 511 }
 512
 513 /************************************************************************************/
 514
 515 static void HandleAction(void)
 516 {
 517     switch(actioncmd)
 518     {
 519         case CMD_STARTBLANK:
 520             if (!win) MakeWin();
 521             break;
 522
 523         case CMD_STOPBLANK:
 524             if (win)
 525             {
 526                 FreePens();
 527                 CloseWindow(win);
 528                 win = 0;
 529             }
 530             break;
 531     }
 532 }
 533
 534 /************************************************************************************/
 535
 536 static void HandleCx(void)
 537 {
 538     CxMsg *msg;
 539
 540     while((msg = (CxMsg *)GetMsg(cxport)))
 541     {
 542         switch(CxMsgType(msg))
 543         {
 544             case CXM_COMMAND:
 545                 switch(CxMsgID(msg))
 546                 {
 547                     case CXCMD_DISABLE:
 548                         ActivateCxObj(cxbroker,0L);
 549                         disabled = TRUE;
 550                         break;
 551
 552                     case CXCMD_ENABLE:
 553                         ActivateCxObj(cxbroker,1L);
 554                         disabled = FALSE;
 555                         break;
 556
 557                     case CXCMD_UNIQUE:
 558                     case CXCMD_KILL:
 559                         quitme = TRUE;
 560                         break;
 561
 562                 } /* switch(CxMsgID(msg)) */
 563                 break;
 564
 565         } /* switch (CxMsgType(msg))*/
 566
 567         ReplyMsg((struct Message *)msg);
 568
 569     } /* while((msg = (CxMsg *)GetMsg(cxport))) */
 570
 571 }
 572
 573 /************************************************************************************/
 574
 575 static void HandleAll(void)
 576 {
 577     ULONG sigs;
 578
 579     while(!quitme)
 580     {
 581         if (win)
 582         {
 583             HandleWin();
 584             WaitTOF();
 585             sigs = CheckSignal(cxmask | actionmask | SIGBREAKF_CTRL_C);
 586         }
 587         else
 588         {
 589             sigs = Wait(cxmask | actionmask | SIGBREAKF_CTRL_C);
 590         }
 591
 592         if (sigs & cxmask) HandleCx();
 593         if (sigs & actionmask) HandleAction();
 594         if (sigs & SIGBREAKF_CTRL_C) quitme = TRUE;
 595
 596     } /* while(!quitme) */
 597
 598 }
 599
 600 /************************************************************************************/
 601
 602 int main(int argc, char **argv)
 603 {
 604     Init();
 605
 606     nb.nb_Name = _(MSG_BLANKER_CXNAME);
 607     nb.nb_Title = _(MSG_BLANKER_CXTITLE);
 608     nb.nb_Descr = _(MSG_BLANKER_CXDESCR);
 609
 610     GetArguments(argc, argv);
 611     InitCX();
 612     HandleAll();
 613     Cleanup(0);
 614     return 0;
 615 }
 616
 617 /************************************************************************************/
 618
 619 ADD2INIT(Locale_Initialize,   90);
 620 ADD2EXIT(Locale_Deinitialize, 90);
 621