16/dos_gfx.cpp

   1 /*\r
   2  * LIB.C v1.2a\r
   3  *\r
   4  * by Robert Schmidt\r
   5  * (C)1993 Ztiff Zox Softwear\r
   6  *\r
   7  * Simple graphics library to accompany the article\r
   8  * \r
   9  *                                        INTRODUCTION TO MODE X.\r
  10  * \r
  11  * This library provides the basic functions for initializing and using\r
  12  * unchained (planar) 256-color VGA modes.  Currently supported are:\r
  13  *\r
  14  *        - 320x200\r
  15  *        - 320x240\r
  16  *\r
  17  * Functions are provided for:\r
  18  *\r
  19  *        - initializing one of the available modes\r
  20  *        - setting the start address of the VGA refresh data\r
  21  *        - setting active and visible display pages\r
  22  *        - writing and reading a single pixel to/from video memory\r
  23  *\r
  24  * The library is provided as a demonstration only, and is not claimed\r
  25  * to be particularly efficient or suited for any purpose.  It has only\r
  26  * been tested with Borland C++ 3.1 by the author.  Comments on success\r
  27  * or disaster with other compilers are welcome.\r
  28  *\r
  29  * This file is public domain.  Do with it whatever you'd like, but\r
  30  * please don't distribute it without the article.\r
  31  *\r
  32  * Thanks go out to various helpful netters who spotted the 0xE7 bug\r
  33  * in the set320x240x256() function!\r
  34  *\r
  35  * modified by sparky4 so it can be compiled in open watcom ^^\r
  36  */\r
  37 \r
  38 \r
  39 \r
  40 \r
  41 /*\r
  42  * We 'require' a large data model simply to get rid of explicit 'far'\r
  43  * pointers and compiler specific '_fmemset()' functions and the likes.\r
  44  */\r
  45 #if !defined(__COMPACT__)\r
  46 # if !defined(__LARGE__)\r
  47 #  if !defined(__HUGE__)\r
  48 #   error Large data model required!  Try compiling with 'bcc -ml lib.c'.\r
  49 #  endif\r
  50 # endif\r
  51 #endif\r
  52 \r
  53 #include <dos.h>\r
  54 #include <mem.h>\r
  55 #include <conio.h>\r
  56 \r
  57 //code from old library!\r
  58 /*src\lib\*/\r
  59 #include "dos_gfx.h"\r
  60 \r
  61 int old_mode;\r
  62 //color \82Ä\82·\82Æ\r
  63 int gq = LGQ;\r
  64 //\82Ä\82·\82Æ\r
  65 int q = 0;\r
  66 int bakax = 0, bakay = 0;\r
  67 int xx = rand()&0%320, yy = rand()&0%240, sx = 0, sy = 0;\r
  68 byte coor;\r
  69 \r
  70 /*\r
  71  * Comment out the following #define if you don't want the testing main()\r
  72  * to be included.\r
  73  */\r
  74 #define TESTING\r
  75 \r
  76 /*\r
  77  * Define the port addresses of some VGA registers.\r
  78  */\r
  79 #define CRTC_ADDR          0x3d4   /* Base port of the CRT Controller (color) */\r
  80 \r
  81 #define SEQU_ADDR          0x3c4   /* Base port of the Sequencer */\r
  82 #define GRAC_ADDR          0x3ce   /* Base port of the Graphics Controller */\r
  83 \r
  84 \r
  85 /*\r
  86  * Make a far pointer to the VGA graphics buffer segment.  Your compiler\r
  87  * might not have the MK_FP macro, but you'll figure something out.\r
  88  */\r
  89 byte *vga = (byte *) MK_FP(0xA000, 0);\r
  90 \r
  91 //fontAddr = getFont();\r
  92 \r
  93 /*\r
  94  * width and height should specify the mode dimensions.  widthBytes\r
  95  * specify the width of a line in addressable bytes.\r
  96  */\r
  97 unsigned width, height, widthBytes;\r
  98 \r
  99 /*\r
 100  * actStart specifies the start of the page being accessed by\r
 101  * drawing operations.  visStart specifies the contents of the Screen\r
 102  * Start register, i.e. the start of the visible page.\r
 103  */\r
 104 unsigned actStart, visStart;\r
 105 \r
 106 /*\r
 107  * set320x200x256_X()\r
 108  *        sets mode 13h, then turns it into an unchained (planar), 4-page\r
 109  *        320x200x256 mode.\r
 110  */\r
 111 void set320x200x256_X(void)\r
 112                 {\r
 113                 union REGS r;\r
 114 \r
 115                 /* Set VGA BIOS mode 13h: */\r
 116                 r.x.ax = 0x0013;\r
 117                 int86(0x10, &r, &r);\r
 118 \r
 119                 /* Turn off the Chain-4 bit (bit 3 at index 4, port 0x3c4): */\r
 120                 outpw(SEQU_ADDR, 0x0604);\r
 121 \r
 122                 /* Turn off word mode, by setting the Mode Control register\r
 123                 of the CRT Controller (index 0x17, port 0x3d4): */\r
 124                 outpw(CRTC_ADDR, 0xE317);\r
 125 \r
 126                 /* Turn off doubleword mode, by setting the Underline Location\r
 127                    register (index 0x14, port 0x3d4): */\r
 128                 outpw(CRTC_ADDR, 0x0014);\r
 129 \r
 130                 /* Clear entire video memory, by selecting all four planes, then\r
 131                    writing 0 to entire segment. */\r
 132                 outpw(SEQU_ADDR, 0x0F02);\r
 133                 memset(vga+1, 0, 0xffff); /* stupid size_t exactly 1 too small */\r
 134                 vga[0] = 0;\r
 135 \r
 136                 /* Update the global variables to reflect dimensions of this\r
 137                    mode.  This is needed by most future drawing operations. */\r
 138                 width              = 320;\r
 139                 height  = 200;\r
 140 \r
 141                 /* Each byte addresses four pixels, so the width of a scan line\r
 142                    in *bytes* is one fourth of the number of pixels on a line. */\r
 143                 widthBytes = width / 4;\r
 144 \r
 145                 /* By default we want screen refreshing and drawing operations\r
 146                    to be based at offset 0 in the video segment. */\r
 147                 actStart = visStart = 0;\r
 148                 }\r
 149 \r
 150 /*\r
 151  * setActiveStart() tells our graphics operations which address in video\r
 152  * memory should be considered the top left corner.\r
 153  */\r
 154 void setActiveStart(unsigned offset)\r
 155                 {\r
 156                 actStart = offset;\r
 157                 }\r
 158 \r
 159 /*\r
 160  * setVisibleStart() tells the VGA from which byte to fetch the first\r
 161  * pixel when starting refresh at the top of the screen.  This version\r
 162  * won't look very well in time critical situations (games for\r
 163  * instance) as the register outputs are not synchronized with the\r
 164  * screen refresh.  This refresh might start when the high byte is\r
 165  * set, but before the low byte is set, which produces a bad flicker.\r
 166  */\r
 167 void setVisibleStart(unsigned offset)\r
 168                 {\r
 169                 visStart = offset;\r
 170                 outpw(CRTC_ADDR, 0x0C);          /* set high byte */\r
 171                 outpw(CRTC_ADDR+1, visStart >> 8);\r
 172                 outpw(CRTC_ADDR, 0x0D);          /* set low byte */\r
 173                 outpw(CRTC_ADDR+1, visStart & 0xff);\r
 174                 }\r
 175 \r
 176 /*\r
 177  * setXXXPage() sets the specified page by multiplying the page number\r
 178  * with the size of one page at the current resolution, then handing the\r
 179  * resulting offset value over to the corresponding setXXXStart()\r
 180  * function.  The first page is number 0.\r
 181  */\r
 182 void setActivePage(int page)\r
 183                 {\r
 184                 setActiveStart(page * widthBytes * height);\r
 185                 }\r
 186 \r
 187 void setVisiblePage(int page)\r
 188                 {\r
 189                 setVisibleStart(page * widthBytes * height);\r
 190                 }\r
 191 \r
 192 void putPixel_X(int x, int y, byte color)\r
 193                 {\r
 194                 /* Each address accesses four neighboring pixels, so set\r
 195                    Write Plane Enable according to which pixel we want\r
 196                    to modify.  The plane is determined by the two least\r
 197                    significant bits of the x-coordinate: */\r
 198                 outp(0x3c4, 0x02);\r
 199                 outp(0x3c5, 0x01 << (x & 3));\r
 200 \r
 201                 /* The offset of the pixel into the video segment is\r
 202                    offset = (width * y + x) / 4, and write the given\r
 203                    color to the plane we selected above.  Heed the active\r
 204                    page start selection. */\r
 205                 vga[(unsigned)(widthBytes * y) + (x / 4) + actStart] = color;\r
 206 \r
 207                 }\r
 208 \r
 209 byte getPixel_X(int x, int y)\r
 210                 {\r
 211                 /* Select the plane from which we must read the pixel color: */\r
 212                 outpw(GRAC_ADDR, 0x04);\r
 213                 outpw(GRAC_ADDR+1, x & 3);\r
 214 \r
 215                 return vga[(unsigned)(widthBytes * y) + (x / 4) + actStart];\r
 216 \r
 217                 }\r
 218 \r
 219 void set320x240x256_X(void)\r
 220                 {\r
 221                 /* Set the unchained version of mode 13h: */\r
 222                 set320x200x256_X();\r
 223 \r
 224                 /* Modify the vertical sync polarity bits in the Misc. Output\r
 225                    Register to achieve square aspect ratio: */\r
 226                 outp(0x3C2, 0xE3);\r
 227 \r
 228                 /* Modify the vertical timing registers to reflect the increased\r
 229                    vertical resolution, and to center the image as good as\r
 230                    possible: */\r
 231                 outpw(0x3D4, 0x2C11);              /* turn off write protect */\r
 232                 outpw(0x3D4, 0x0D06);              /* vertical total */\r
 233                 outpw(0x3D4, 0x3E07);              /* overflow register */\r
 234                 outpw(0x3D4, 0xEA10);              /* vertical retrace start */\r
 235                 outpw(0x3D4, 0xAC11);              /* vertical retrace end AND wr.prot */\r
 236                 outpw(0x3D4, 0xDF12);              /* vertical display enable end */\r
 237                 outpw(0x3D4, 0xE715);              /* start vertical blanking */\r
 238                 outpw(0x3D4, 0x0616);              /* end vertical blanking */\r
 239 \r
 240                 /* Update mode info, so future operations are aware of the\r
 241                    resolution */\r
 242                 height = 240;\r
 243 \r
 244                 }\r
 245 \r
 246 \r
 247 /*-----------XXXX-------------*/
 248 /*tile*/\r
 249 void putColorBox_X(int x, int y, int w, int h, byte color) {
 250         outp(0x3c4, 0x02);
 251
 252         int curx, cury;
 253         unsigned drawptr;
 254         for (curx=x; curx<(x+w); curx++) {
 255                 outp(0x3c5, 0x01 << (curx & 3));
 256                 drawptr = (unsigned)(widthBytes * y) + (curx / 4) + actStart;
 257                 for (cury=0; cury<h; cury++) {
 258                         vga[drawptr] = color;
 259                         drawptr += widthBytes;
 260                 }
 261         }
 262 }
 263 /*OFFSET = 0
 264 WHILE NOT FINISHED DO
 265   OFFSET = OFFSET + 80
 266   IF OFFSET >= (200 * 80) THEN OFFSET = 0
 267   DRAW TO ROW 200
 268   SET VGA OFFSET = OFFSET
 269   DRAW TO ROW -1 (was row 0 before scroll)
 270 END WHILE*//*
 271 void scrolly(){
 272         int OFFSET = 0
 273         WHILE NOT FINISHED DO
 274                 OFFSET = OFFSET + 80
 275                 IF OFFSET >= (240 * 80) THEN OFFSET = 0
 276                 RAW TO ROW 240
 277                 SET VGA OFFSET = OFFSET
 278                 DRAW TO ROW -1 (was row 0 before scroll)
 279         }
 280 }
 281 */\r
 282 //---------------------------------------------------\r
 283 //\r
 284 // Use the bios to get the address of the 8x8 font\r
 285 //\r
 286 // You need a font if you are going to draw text.\r
 287 //\r
 288 \r
 289 int far *\r
 290 getFont()\r
 291 {\r
 292         union REGPACK rg;\r
 293         int seg;\r
 294         int off;\r
 295         memset(&rg, 0, sizeof(rg));\r
 296 \r
 297         rg.w.ax = 0x1130;\r
 298         rg.h.bh = 0x03;\r
 299         intr(0x10, &rg);\r
 300         seg = rg.w.es;\r
 301         off = rg.w.bp;\r
 302         \r
 303 \r
 304         return (int far *)MK_FP(seg, off);\r
 305 }\r
 306 \r
 307 void drawChar(int x, int y, int color, byte c)\r
 308 {\r
 309                 int i, j;\r
 310                 int mask;\r
 311                 int far *font = getFont() + (c * 8);\r
 312 \r
 313                 for (i = 0; i < 8; i++)\r
 314                 {\r
 315                                 mask = *font;\r
 316                                 for (j = 0; j < 8; j++)\r
 317                                 {\r
 318                                                 if (mask & 0x80)\r
 319                                                 {\r
 320                                                                 //pixel(x + j, y + i, color);\r
 321                                                                 putPixel_X(x + j, y + i, color);\r
 322                                                 }\r
 323                                                 mask <<= 1;\r
 324                                 }\r
 325                                 font++;\r
 326                 }\r
 327 }\r
 328 \r
 329 void drawText(int x, int y, int color, byte string)\r
 330 {\r
 331                 while (string)\r
 332                 {\r
 333                                 drawChar(x, y, color, string);\r
 334                                 x += 8;\r
 335                                 string++;\r
 336                 }\r
 337 }\r
 338 \r
 339 /////////////////////////////////////////////////////////////////////////////\r
 340 //                                                                         //\r
 341 // setvideo() - This function Manages the video modes                                     //\r
 342 //                                                                         //\r
 343 /////////////////////////////////////////////////////////////////////////////\r
 344 void setvideo(/*byte mode, */int vq){\r
 345                 union REGS in, out;\r
 346 \r
 347                 if(!vq){ // deinit the video\r
 348                                 // change to the video mode we were in before we switched to mode 13h\r
 349                                 in.h.ah = 0x00;\r
 350                                 in.h.al = old_mode;\r
 351                                 int86(0x10, &in, &out);\r
 352 \r
 353                 }else if(vq == 1){ // init the video\r
 354                                 // get old video mode\r
 355                                 in.h.ah = 0xf;\r
 356                                 int86(0x10, &in, &out);\r
 357                                 old_mode = out.h.al;\r
 358 \r
 359                                 // enter mode\r
 360                                 set320x240x256_X();\r
 361                 }\r
 362 }\r
 363 \r
 364 /////////////////////////////////////////////////////////////////////////////\r
 365 //                                                                                                                                               //\r
 366 // cls() - This clears the screen to the specified color, on the VGA or on //\r
 367 //               the Virtual screen.                                                                                     //\r
 368 //                                                                                                                                               //\r
 369 /////////////////////////////////////////////////////////////////////////////\r
 370 void cls(byte color, byte *Where){\r
 371                 _fmemset(Where, color, width*(height*17));
 372 }\r
 373 \r
 374 //color \82Ä\82·\82Æ\r
 375 int colortest(){\r
 376                 if(gq < NUM_COLORS){\r
 377                                 cls(gq, vga);\r
 378                                 gq++;\r
 379                 }else gq = 0;\r
 380                 return gq;\r
 381 }\r
 382 \r
 383 //color \82Ä\82·\82Æ\r
 384 int colorz(){\r
 385                 if(gq < HGQ){\r
 386 //----            cls(gq, vaddr);\r
 387                                 cls(gq, vga);\r
 388                                 gq++;\r
 389                 }else gq = LGQ;\r
 390                 return gq;\r
 391 }\r
 392 \r
 393 //slow spectrum down\r
 394 void ssd(int svq){\r
 395                 if(sy < height+1){\r
 396                                 if(sx < width+1){\r
 397                                                 //plotpixel(xx, yy, coor, vga);\r
 398                                                 //ppf(sx, sy, coor, vga);\r
 399                                                 putPixel_X(sx, sy, coor);\r
 400                                                 //printf("%d %d %d %d\n", sx, sy, svq, coor);\r
 401                                                 sx++;\r
 402                                 }else sx = 0;\r
 403                                 if(sx == width){\r
 404                                                 sy++;\r
 405                                                 if(svq == 7) coor++;\r
 406                                                 if(sy == height && svq == 8) coor = rand()%NUM_COLORS;\r
 407                                 }\r
 408                 }else sy = 0;\r
 409 }\r
 410 \r
 411 /*-----------ding-------------*/\r
 412 int ding(int q){\r
 413                 setActivePage(0);\r
 414                 setVisiblePage(0);\r
 415                 int d3y;\r
 416 \r
 417 //++++  if(q <= 4 && q!=2 && gq == BONK-1) coor = rand()%HGQ;\r
 418                 if((q == 2\r
 419                 ||q==4\r
 420                 ||q==16\r
 421                 ) && gq == BONK-1){\r
 422                                                 if(coor < HGQ && coor < LGQ) coor = LGQ;\r
 423                                                 if(coor < HGQ-1){\r
 424                                                                 coor++;\r
 425                                 }else{ coor = LGQ;\r
 426                                                 bakax = rand()%3; bakay = rand()%3;\r
 427                                 }\r
 428                 }\r
 429 \r
 430                 if(q == 5){ colortest(); return gq; }\r
 431                 if(q == 10){ colorz(); return gq; }\r
 432                 if(q == 11){ colorz(); delay(100); return gq; }\r
 433                 if(q == 8){ ssd(q); /*printf("%d\n", coor);*/ }\r
 434                 if(q == 6){\r
 435                                 coor = rand()%NUM_COLORS;\r
 436 //----            cls(coor, vaddr);\r
 437                                 cls(coor, vga);\r
 438                                 //updatevbuff();\r
 439                 }\r
 440 \r
 441                 if(q == 7 || q== 9){\r
 442                                 if(gq < HGQ){\r
 443                                                 if(q == 7) ssd(q);\r
 444                                                 if(q == 9){ ssd(q); coor++; }\r
 445                                                 gq++;\r
 446                                 }else gq = LGQ;\r
 447                 }\r
 448                 if((q<5 && gq<BONK) || (q==16 && gq<BONK)){ // the number variable make the colors more noticable\r
 449                                 if(q==1){\r
 450                                                 if(xx==width){bakax=0;}\r
 451                                                 if(xx==0){bakax=1;}\r
 452                                                 if(yy==height){bakay=0;}\r
 453                                                 if(yy==0){bakay=1;}\r
 454                                 }else if(q==3){\r
 455                                                 if(xx!=width||yy!=height){\r
 456                                                                 if(xx==0){bakax=1;bakay=-1;d3y=1;}\r
 457                                                                 if(yy==0){bakax=1;bakay=0;d3y=1;}\r
 458                                                                 if(xx==width){bakax=-1;bakay=-1;d3y=1;}\r
 459                                                                 if(yy==height){bakax=1;bakay=0;d3y=1;}\r
 460                                                 }else if(xx==width&&yy==height) xx=yy=0;\r
 461                                 }\r
 462                                 if(q==3){\r
 463                                                 if(d3y){\r
 464                                                                 if(bakay<0){\r
 465                                                                                 yy--;\r
 466                                                                                 d3y--;\r
 467                                                                 }else\r
 468                                                                 if(bakay>0){\r
 469                                                                                 yy++;\r
 470                                                                                 d3y--;\r
 471                                                                 }\r
 472                                                 }\r
 473                                                 if(bakax<0){\r
 474                                                                 xx--;\r
 475                                                 }else\r
 476                                                 if(bakax>0){\r
 477                                                                 xx++;\r
 478                                                 }\r
 479                                 }else{\r
 480                                                 if(q==16)\r
 481                                                 {\r
 482                                                                 if(!bakax){\r
 483                                                                                 xx--;//=TILEWH;\r
 484                                                                 }else if(bakax>0){\r
 485                                                                                 xx++;//=TILEWH;\r
 486                                                                 }\r
 487                                                                 if(!bakay){\r
 488                                                                                 yy--;//=TILEWH;\r
 489                                                                 }else if(bakay>0){\r
 490                                                                                 yy++;//=TILEWH;\r
 491                                                                 }\r
 492                                                 }else{\r
 493                                                                 if(!bakax){\r
 494                                                                                 xx-=TILEWH;\r
 495                                                                 }else if(bakax>1){\r
 496                                                                                 xx+=TILEWH;\r
 497                                                                 }\r
 498                                                                 if(!bakay){\r
 499                                                                                 yy-=TILEWH;\r
 500                                                                 }else if(bakay>1){\r
 501                                                                                 yy+=TILEWH;\r
 502                                                                 }\r
 503                                                 }\r
 504                                 }\r
 505                                 // fixer\r
 506                                 //if(q!=16){\r
 507                                                 if(xx<0) xx=width;\r
 508                                                 if(yy<0) yy=height;\r
 509                                                 if(xx>width) xx=0;\r
 510                                                 if(yy>height) yy=0;\r
 511                                 //}\r
 512 \r
 513 //interesting effects\r
 514                                 if(q==16)\r
 515                                 {\r
 516                                 int tx=0,ty=0;\r
 517                                 tx+=xx+16;\r
 518                                 ty+=yy+16;\r
 519                                 putPixel_X(tx, ty, coor);\r
 520                                 //drawrect(tx, ty, tx+TILEWH, ty+TILEWH, coor);\r
 521                                 //printf("%d %d %d %d %d %d\n", xx, yy, tx, ty, TILEWH);\r
 522 \r
 523                                 // plot the pixel\r
 524 //----            ppf(xx, yy, coor, vga);\r
 525                                 }else if(xx>=0 && xx<width && yy>=0 && PixelY<height){
 526                                         putColorBox_X(xx, yy, TILEWH, TILEWH, coor);
 527 //++++0000                                      putPixel_X(xx, yy, coor);
 528                                 }
 529
 530 //----            if(q==2) ppf(rand()%, rand()%height, 0, vga);\r
 531                                 if(q==2) putColorBox_X(rand()%width, rand()%height, TILEWH, TILEWH, 0);
 532                                 if(q==16) putPixel_X(rand()%width, rand()%height, 0);\r
 533                                 if(q==2||q==4||q==16){ bakax = rand()%3; bakay = rand()%3; }\r
 534                                 gq++;\r
 535 //if(xx<0||xx>320||yy<0||yy>240)\r
 536 //        printf("%d %d %d %d %d %d\n", xx, yy, coor, bakax, bakay, getPixel_X(xx,yy));\r
 537 //        printf("%d\n", getPixel_X(xx,yy));\r
 538 //0000\r
 539 //        drawText(0, 0, 15, getPixel_X(xx,yy));\r
 540                 }else gq = LGQ;\r
 541                 return gq;\r
 542 }\r
 543 \r
 544 \r
 545 /*\r
 546  * The library testing routines follows below.\r
 547  */\r
 548 \r
 549 \r
 550 #ifdef TESTING\r
 551 \r
 552 #include <stdio.h>\r
 553 #include <conio.h>\r
 554 \r
 555 void doTest(void)\r
 556                 {\r
 557                 int p, x, y, pages;\r
 558 \r
 559                 /* This is the way to calculate the number of pages available. */\r
 560                 pages = 65536L/(widthBytes*height); // apparently this takes the A000 address\r
 561 \r
 562                 printf("%d\n", pages);\r
 563 \r
 564                 for (p = 0; p <= pages; ++p)\r
 565                                 {\r
 566                                 setActivePage(p);\r
 567 \r
 568                                 /* On each page draw a single colored border, and dump the palette\r
 569                                    onto a small square about the middle of the page. */\r
 570 \r
 571                                    //{\r
 572                                                 for (x = 0; x <= width; ++x)\r
 573                                                                 {\r
 574                                                                 putPixel_X(x, 0, p+1);\r
 575                                                                 if(p!=pages) putPixel_X(x, height-1, p+1);\r
 576                                                                                 else putPixel_X(x, 99-1, p+1);\r
 577                                                                 }\r
 578 \r
 579                                                 for (y = 0; y <= height; ++y)\r
 580                                                                 {\r
 581                                                                 putPixel_X(0, y, p+1);\r
 582                                                                 if(p!=pages) putPixel_X(width-1, y, p+1);\r
 583                                                                                 else putPixel_X(width-1, y, p+1);\r
 584                                                                 }\r
 585 \r
 586                                                 for (x = 0; x < 16; ++x)\r
 587                                                                 for (y = 0; y < 16; ++y)\r
 588                                                                                 putPixel_X(x+(p+2)*16, y+(p+2)*16, x + y*16);\r
 589                                                 //}\r
 590 \r
 591                                 drawText(0, 0, 15, p);\r
 592 \r
 593                                 }\r
 594 \r
 595                 /* Each pages will now contain a different image.  Let the user cycle\r
 596                    through all the pages by pressing a key. */\r
 597                 for (p = 0; p <= pages; ++p)\r
 598                                 {\r
 599                                 setVisiblePage(p);\r
 600                                 //drawText(0, 240, 15, "bakapi");\r
 601                                 getch();\r
 602                                 }\r
 603 \r
 604                 }\r
 605 \r
 606 /*\r
 607  * Library test (program) entry point.\r
 608  */\r
 609 \r
 610 int main(void)\r
 611                 {\r
 612                 int key,d;\r
 613                 // main variables\r
 614                 d=1; // switch variable\r
 615                 key=4; // default screensaver number\r
 616 //        puts("First, have a look at the 320x200 mode.  I will draw some rubbish");\r
 617 //        puts("on all of the four pages, then let you cycle through them by");\r
 618 //        puts("hitting a key on each page.");\r
 619 //        puts("Press a key when ready...");\r
 620 //        getch();\r
 621 \r
 622 //        doTest();\r
 623 \r
 624 //        puts("Then, check out Mode X, 320x240 with 3 (and a half) pages.");\r
 625 //        puts("Press a key when ready...");\r
 626 //        getch();\r
 627 \r
 628                 setvideo(1);\r
 629 // screen savers\r
 630 \r
 631 /*while(d!=0){ // on!\r
 632                                 if(!kbhit()){ // conditions of screen saver\r
 633                                                 ding(key);\r
 634                                 }else{\r
 635                                                 setvideo(0);\r
 636                                                 // user imput switch\r
 637                                                 printf("Enter 1, 2, 3, 4, or 6 to run a screensaver, or enter 5 to quit.\n", getch());  // prompt the user\r
 638                                                 scanf("%d", &key);\r
 639                                                 //if(key==3){xx=yy=0;} // crazy screen saver wwww\r
 640                                                 if(key==5) d=0;\r
 641                                                 setvideo(1);\r
 642                                 }\r
 643                 }*/ // else off\r
 644                 while(!kbhit()){ // conditions of screen saver\r
 645                                 ding(4);\r
 646                 }\r
 647                 //end of screen savers\r
 648                 doTest();\r
 649                 setvideo(0);\r
 650                 puts("Where to next?  It's your move! wwww");\r
 651                 printf("bakapi ver. 1.04.09a\nis made by sparky4\81i\81\86\83Ö\81\85\81j feel free to use it ^^\nLicence: GPL v2\n");\r
 652                 return 0;\r
 653                 }\r
 654 \r
 655 #endif\r