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"
  60 #include "lib\x\modex.h"\r
  61 \r
  62 int old_mode;\r
  63 //color \82Ä\82·\82Æ\r
  64 int gq = LGQ;\r
  65 //\82Ä\82·\82Æ\r
  66 int q = 0;\r
  67 int bakax = 0, bakay = 0;\r
  68 int xx = rand()&0%320, yy = rand()&0%240, sx = 0, sy = 0;\r
  69 byte coor;\r
  70 \r
  71 /*\r
  72  * Comment out the following #define if you don't want the testing main()\r
  73  * to be included.\r
  74  */\r
  75 #define TESTING\r
  76 \r
  77 /*\r
  78  * Define the port addresses of some VGA registers.\r
  79  */\r
  80 #define CRTC_ADDR          0x3d4   /* Base port of the CRT Controller (color) */\r
  81 \r
  82 #define SEQU_ADDR          0x3c4   /* Base port of the Sequencer */\r
  83 #define GRAC_ADDR          0x3ce   /* Base port of the Graphics Controller */\r
  84 \r
  85 \r
  86 /*\r
  87  * Make a far pointer to the VGA graphics buffer segment.  Your compiler\r
  88  * might not have the MK_FP macro, but you'll figure something out.\r
  89  */\r
  90 byte *vga = (byte *) MK_FP(0xA000, 0);\r
  91 \r
  92 //fontAddr = getFont();\r
  93 \r
  94 /*\r
  95  * width and height should specify the mode dimensions.  widthBytes\r
  96  * specify the width of a line in addressable bytes.\r
  97  */\r
  98 unsigned width, height, widthBytes;\r
  99 \r
 100 /*\r
 101  * actStart specifies the start of the page being accessed by\r
 102  * drawing operations.  visStart specifies the contents of the Screen\r
 103  * Start register, i.e. the start of the visible page.\r
 104  */\r
 105 unsigned actStart, visStart;\r
 106 \r
 107 /*\r
 108  * set320x200x256_X()\r
 109  *        sets mode 13h, then turns it into an unchained (planar), 4-page\r
 110  *        320x200x256 mode.\r
 111  */\r
 112 void set320x200x256_X(void)\r
 113                 {\r
 114                 union REGS r;\r
 115 \r
 116                 /* Set VGA BIOS mode 13h: */\r
 117                 r.x.ax = 0x0013;\r
 118                 int86(0x10, &r, &r);\r
 119 \r
 120                 /* Turn off the Chain-4 bit (bit 3 at index 4, port 0x3c4): */\r
 121                 outpw(SEQU_ADDR, 0x0604);\r
 122 \r
 123                 /* Turn off word mode, by setting the Mode Control register\r
 124                 of the CRT Controller (index 0x17, port 0x3d4): */\r
 125                 outpw(CRTC_ADDR, 0xE317);\r
 126 \r
 127                 /* Turn off doubleword mode, by setting the Underline Location\r
 128                    register (index 0x14, port 0x3d4): */\r
 129                 outpw(CRTC_ADDR, 0x0014);\r
 130 \r
 131                 /* Clear entire video memory, by selecting all four planes, then\r
 132                    writing 0 to entire segment. */\r
 133                 outpw(SEQU_ADDR, 0x0F02);\r
 134                 memset(vga+1, 0, 0xffff); /* stupid size_t exactly 1 too small */\r
 135                 vga[0] = 0;\r
 136 \r
 137                 /* Update the global variables to reflect dimensions of this\r
 138                    mode.  This is needed by most future drawing operations. */\r
 139                 width              = 320;\r
 140                 height  = 200;\r
 141 \r
 142                 /* Each byte addresses four pixels, so the width of a scan line\r
 143                    in *bytes* is one fourth of the number of pixels on a line. */\r
 144                 widthBytes = width / 4;\r
 145 \r
 146                 /* By default we want screen refreshing and drawing operations\r
 147                    to be based at offset 0 in the video segment. */\r
 148                 actStart = visStart = 0;\r
 149                 }\r
 150 \r
 151 /*\r
 152  * setActiveStart() tells our graphics operations which address in video\r
 153  * memory should be considered the top left corner.\r
 154  */\r
 155 void setActiveStart(unsigned offset)\r
 156                 {\r
 157                 actStart = offset;\r
 158                 }\r
 159 \r
 160 /*\r
 161  * setVisibleStart() tells the VGA from which byte to fetch the first\r
 162  * pixel when starting refresh at the top of the screen.  This version\r
 163  * won't look very well in time critical situations (games for\r
 164  * instance) as the register outputs are not synchronized with the\r
 165  * screen refresh.  This refresh might start when the high byte is\r
 166  * set, but before the low byte is set, which produces a bad flicker.\r
 167  */\r
 168 void setVisibleStart(unsigned offset)\r
 169                 {\r
 170                 visStart = offset;\r
 171                 outpw(CRTC_ADDR, 0x0C);          /* set high byte */\r
 172                 outpw(CRTC_ADDR+1, visStart >> 8);\r
 173                 outpw(CRTC_ADDR, 0x0D);          /* set low byte */\r
 174                 outpw(CRTC_ADDR+1, visStart & 0xff);\r
 175                 }\r
 176 \r
 177 /*\r
 178  * setXXXPage() sets the specified page by multiplying the page number\r
 179  * with the size of one page at the current resolution, then handing the\r
 180  * resulting offset value over to the corresponding setXXXStart()\r
 181  * function.  The first page is number 0.\r
 182  */\r
 183 void setActivePage(int page)\r
 184                 {\r
 185                 setActiveStart(page * widthBytes * height);\r
 186                 }\r
 187 \r
 188 void setVisiblePage(int page)\r
 189                 {\r
 190                 setVisibleStart(page * widthBytes * height);\r
 191                 }\r
 192 \r
 193 void putPixel_X(int x, int y, byte color)\r
 194                 {\r
 195                 /* Each address accesses four neighboring pixels, so set\r
 196                    Write Plane Enable according to which pixel we want\r
 197                    to modify.  The plane is determined by the two least\r
 198                    significant bits of the x-coordinate: */\r
 199                 outp(0x3c4, 0x02);\r
 200                 outp(0x3c5, 0x01 << (x & 3));\r
 201 \r
 202                 /* The offset of the pixel into the video segment is\r
 203                    offset = (width * y + x) / 4, and write the given\r
 204                    color to the plane we selected above.  Heed the active\r
 205                    page start selection. */\r
 206                 vga[(unsigned)(widthBytes * y) + (x / 4) + actStart] = color;\r
 207 \r
 208                 }\r
 209 \r
 210 byte getPixel_X(int x, int y)\r
 211                 {\r
 212                 /* Select the plane from which we must read the pixel color: */\r
 213                 outpw(GRAC_ADDR, 0x04);\r
 214                 outpw(GRAC_ADDR+1, x & 3);\r
 215 \r
 216                 return vga[(unsigned)(widthBytes * y) + (x / 4) + actStart];\r
 217 \r
 218                 }\r
 219 \r
 220 void set320x240x256_X(void)\r
 221                 {\r
 222                 /* Set the unchained version of mode 13h: */\r
 223                 set320x200x256_X();\r
 224 \r
 225                 /* Modify the vertical sync polarity bits in the Misc. Output\r
 226                    Register to achieve square aspect ratio: */\r
 227                 outp(0x3C2, 0xE3);\r
 228 \r
 229                 /* Modify the vertical timing registers to reflect the increased\r
 230                    vertical resolution, and to center the image as good as\r
 231                    possible: */\r
 232                 outpw(0x3D4, 0x2C11);              /* turn off write protect */\r
 233                 outpw(0x3D4, 0x0D06);              /* vertical total */\r
 234                 outpw(0x3D4, 0x3E07);              /* overflow register */\r
 235                 outpw(0x3D4, 0xEA10);              /* vertical retrace start */\r
 236                 outpw(0x3D4, 0xAC11);              /* vertical retrace end AND wr.prot */\r
 237                 outpw(0x3D4, 0xDF12);              /* vertical display enable end */\r
 238                 outpw(0x3D4, 0xE715);              /* start vertical blanking */\r
 239                 outpw(0x3D4, 0x0616);              /* end vertical blanking */\r
 240 \r
 241                 /* Update mode info, so future operations are aware of the\r
 242                    resolution */\r
 243                 height = 240;\r
 244 \r
 245                 }\r
 246 \r
 247 \r
 248 /*-----------XXXX-------------*/\r
 249 /*tile*/\r
 250 void putColorBox_X(int x, int y, int w, int h, byte color) {\r
 251         outp(0x3c4, 0x02);\r
 252 \r
 253         int curx, cury;\r
 254         unsigned drawptr;\r
 255         for (curx=x; curx<(x+w); curx++) {\r
 256                 outp(0x3c5, 0x01 << (curx & 3));\r
 257                 drawptr = (unsigned)(widthBytes * y) + (curx / 4) + actStart;\r
 258                 for (cury=0; cury<h; cury++) {\r
 259                         vga[drawptr] = color;\r
 260                         drawptr += widthBytes;\r
 261                 }\r
 262         }\r
 263 }\r
 264 /*OFFSET = 0\r
 265 WHILE NOT FINISHED DO\r
 266   OFFSET = OFFSET + 80\r
 267   IF OFFSET >= (200 * 80) THEN OFFSET = 0\r
 268   DRAW TO ROW 200\r
 269   SET VGA OFFSET = OFFSET\r
 270   DRAW TO ROW -1 (was row 0 before scroll)\r
 271 END WHILE*//*\r
 272 void scrolly(){\r
 273         int OFFSET = 0\r
 274         WHILE NOT FINISHED DO\r
 275                 OFFSET = OFFSET + 80\r
 276                 IF OFFSET >= (240 * 80) THEN OFFSET = 0\r
 277                 RAW TO ROW 240\r
 278                 SET VGA OFFSET = OFFSET\r
 279                 DRAW TO ROW -1 (was row 0 before scroll)\r
 280         }\r
 281 }\r
 282 */\r
 283 //---------------------------------------------------\r
 284 //\r
 285 // Use the bios to get the address of the 8x8 font\r
 286 //\r
 287 // You need a font if you are going to draw text.\r
 288 //\r
 289 \r
 290 int far *\r
 291 getFont()\r
 292 {\r
 293         union REGPACK rg;\r
 294         int seg;\r
 295         int off;\r
 296         memset(&rg, 0, sizeof(rg));\r
 297 \r
 298         rg.w.ax = 0x1130;\r
 299         rg.h.bh = 0x03;\r
 300         intr(0x10, &rg);\r
 301         seg = rg.w.es;\r
 302         off = rg.w.bp;\r
 303         \r
 304 \r
 305         return (int far *)MK_FP(seg, off);\r
 306 }\r
 307 \r
 308 void drawChar(int x, int y, int color, byte c)\r
 309 {\r
 310                 int i, j;\r
 311                 int mask;\r
 312                 int far *font = getFont() + (c * 8);\r
 313 \r
 314                 for (i = 0; i < 8; i++)\r
 315                 {\r
 316                                 mask = *font;\r
 317                                 for (j = 0; j < 8; j++)\r
 318                                 {\r
 319                                                 if (mask & 0x80)\r
 320                                                 {\r
 321                                                                 //pixel(x + j, y + i, color);\r
 322                                                                 putPixel_X(x + j, y + i, color);\r
 323                                                 }\r
 324                                                 mask <<= 1;\r
 325                                 }\r
 326                                 font++;\r
 327                 }\r
 328 }\r
 329 \r
 330 void drawText(int x, int y, int color, byte string)\r
 331 {\r
 332                 while (string)\r
 333                 {\r
 334                                 drawChar(x, y, color, string);\r
 335                                 x += 8;\r
 336                                 string++;\r
 337                 }\r
 338 }\r
 339 \r
 340 /////////////////////////////////////////////////////////////////////////////\r
 341 //                                                                         //\r
 342 // setvideo() - This function Manages the video modes                                     //\r
 343 //                                                                         //\r
 344 /////////////////////////////////////////////////////////////////////////////\r
 345 void setvideo(/*byte mode, */int vq){\r
 346                 union REGS in, out;\r
 347 \r
 348                 if(!vq){ // deinit the video\r
 349                                 // change to the video mode we were in before we switched to mode 13h\r
 350                                 in.h.ah = 0x00;\r
 351                                 in.h.al = old_mode;\r
 352                                 int86(0x10, &in, &out);\r
 353 \r
 354                 }else if(vq == 1){ // init the video\r
 355                                 // get old video mode\r
 356                                 in.h.ah = 0xf;\r
 357                                 int86(0x10, &in, &out);\r
 358                                 old_mode = out.h.al;\r
 359 \r
 360                                 // enter mode\r
 361                                 set320x240x256_X();\r
 362                 }\r
 363 }\r
 364 \r
 365 /////////////////////////////////////////////////////////////////////////////\r
 366 //                                                                                                                                               //\r
 367 // cls() - This clears the screen to the specified color, on the VGA or on //\r
 368 //               the Virtual screen.                                                                                     //\r
 369 //                                                                                                                                               //\r
 370 /////////////////////////////////////////////////////////////////////////////\r
 371 void cls(byte color, byte *Where){\r
 372                 _fmemset(Where, color, width*(height*17));\r
 373 }\r
 374 \r
 375 //color \82Ä\82·\82Æ\r
 376 int colortest(){\r
 377                 if(gq < NUM_COLORS){\r
 378                                 cls(gq, vga);\r
 379                                 gq++;\r
 380                 }else gq = 0;\r
 381                 return gq;\r
 382 }\r
 383 \r
 384 //color \82Ä\82·\82Æ\r
 385 int colorz(){\r
 386                 if(gq < HGQ){\r
 387 //----            cls(gq, vaddr);\r
 388                                 cls(gq, vga);\r
 389                                 gq++;\r
 390                 }else gq = LGQ;\r
 391                 return gq;\r
 392 }\r
 393 \r
 394 //slow spectrum down\r
 395 void ssd(int svq){\r
 396                 if(sy < height+1){\r
 397                                 if(sx < width+1){\r
 398                                                 //plotpixel(xx, yy, coor, vga);\r
 399                                                 //ppf(sx, sy, coor, vga);\r
 400                                                 putPixel_X(sx, sy, coor);\r
 401                                                 //printf("%d %d %d %d\n", sx, sy, svq, coor);\r
 402                                                 sx++;\r
 403                                 }else sx = 0;\r
 404                                 if(sx == width){\r
 405                                                 sy++;\r
 406                                                 if(svq == 7) coor++;\r
 407                                                 if(sy == height && svq == 8) coor = rand()%NUM_COLORS;\r
 408                                 }\r
 409                 }else sy = 0;\r
 410 }\r
 411 \r
 412 /*-----------ding-------------*/\r
 413 int ding(int q){\r
 414                 setActivePage(0);\r
 415                 setVisiblePage(0);\r
 416                 int d3y;\r
 417 \r
 418 //++++  if(q <= 4 && q!=2 && gq == BONK-1) coor = rand()%HGQ;\r
 419                 if((q == 2\r
 420                 ||q==4\r
 421                 ||q==16\r
 422                 ) && gq == BONK-1){\r
 423                                                 if(coor < HGQ && coor < LGQ) coor = LGQ;\r
 424                                                 if(coor < HGQ){\r
 425                                                                 coor++;\r
 426                                 }else{ coor = LGQ;\r
 427                                                 bakax = rand()%3; bakay = rand()%3;\r
 428                                 }\r
 429                 }\r
 430 \r
 431                 if(q == 8){ colorz(); return gq; }else\r
 432                 if(q == 10){ ssd(q); /*printf("%d\n", coor);*/ }else\r
 433                 if(q == 5){ colortest(); return gq; }else\r
 434                 if(q == 11){ colorz(); delay(100); return gq; }\r
 435                 if(q == 6){\r
 436                                 coor = rand()%NUM_COLORS;\r
 437 //----            cls(coor, vaddr);\r
 438                                 cls(coor, vga);\r
 439                                 //updatevbuff();\r
 440                 }\r
 441 \r
 442                 if(q == 7 || q== 9){\r
 443                                 if(gq < HGQ){\r
 444                                                 if(q == 7) ssd(q);\r
 445                                                 if(q == 9){ ssd(q); coor++; }\r
 446                                                 gq++;\r
 447                                 }else gq = LGQ;\r
 448                 }\r
 449                 if((q<5 && gq<BONK) || (q==16 && gq<BONK)){ // the number variable make the colors more noticable\r
 450                                 if(q==1){\r
 451                                                 if(xx==width){bakax=0;}\r
 452                                                 if(xx==0){bakax=1;}\r
 453                                                 if(yy==height){bakay=0;}\r
 454                                                 if(yy==0){bakay=1;}\r
 455                                 }else if(q==3){\r
 456                                                 if(xx!=width||yy!=height){\r
 457                                                                 if(xx==0){bakax=1;bakay=-1;d3y=1;}\r
 458                                                                 if(yy==0){bakax=1;bakay=0;d3y=1;}\r
 459                                                                 if(xx==width){bakax=-1;bakay=-1;d3y=1;}\r
 460                                                                 if(yy==height){bakax=1;bakay=0;d3y=1;}\r
 461                                                 }else if(xx==width&&yy==height) xx=yy=0;\r
 462                                 }\r
 463                                 if(q==3){\r
 464                                                 if(d3y){\r
 465                                                                 if(bakay<0){\r
 466                                                                                 yy--;\r
 467                                                                                 d3y--;\r
 468                                                                 }else\r
 469                                                                 if(bakay>0){\r
 470                                                                                 yy++;\r
 471                                                                                 d3y--;\r
 472                                                                 }\r
 473                                                 }\r
 474                                                 if(bakax<0){\r
 475                                                                 xx--;\r
 476                                                 }else\r
 477                                                 if(bakax>0){\r
 478                                                                 xx++;\r
 479                                                 }\r
 480                                 }else{\r
 481                                                 if(q==16)\r
 482                                                 {\r
 483                                                                 if(!bakax){\r
 484                                                                                 xx--;//=TILEWH;\r
 485                                                                 }else if(bakax>0){\r
 486                                                                                 xx++;//=TILEWH;\r
 487                                                                 }\r
 488                                                                 if(!bakay){\r
 489                                                                                 yy--;//=TILEWH;\r
 490                                                                 }else if(bakay>0){\r
 491                                                                                 yy++;//=TILEWH;\r
 492                                                                 }\r
 493                                                 }else{\r
 494                                                                 if(!bakax){\r
 495                                                                                 xx-=TILEWH;\r
 496                                                                 }else if(bakax>1){\r
 497                                                                                 xx+=TILEWH;\r
 498                                                                 }\r
 499                                                                 if(!bakay){\r
 500                                                                                 yy-=TILEWH;\r
 501                                                                 }else if(bakay>1){\r
 502                                                                                 yy+=TILEWH;\r
 503                                                                 }\r
 504                                                 }\r
 505                                 }\r
 506                                 // fixer\r
 507                                 //if(q!=16){\r
 508                                                 if(xx<0) xx=width;\r
 509                                                 if(yy<0) yy=height;\r
 510                                                 if(xx>width) xx=0;\r
 511                                                 if(yy>height) yy=0;\r
 512                                 //}\r
 513 \r
 514 //interesting effects\r
 515                                 if(q==16)\r
 516                                 {\r
 517                                 int tx=0,ty=0;\r
 518                                 tx+=xx+16;\r
 519                                 ty+=yy+16;\r
 520                                 putPixel_X(tx, ty, coor);\r
 521                                 //drawrect(tx, ty, tx+TILEWH, ty+TILEWH, coor);\r
 522                                 //printf("%d %d %d %d %d %d\n", xx, yy, tx, ty, TILEWH);\r
 523 \r
 524                                 // plot the pixel\r
 525 //----            ppf(xx, yy, coor, vga);\r
 526                                 }else if(xx>=0 && xx<width && yy>=0 && yy<height){\r
 527                                         putColorBox_X(xx, yy, TILEWH, TILEWH, coor);\r
 528 //++++0000                                      putPixel_X(xx, yy, coor);\r
 529                                 } \r
 530 \r
 531 //----            if(q==2) ppf(rand()%, rand()%height, 0, vga);\r
 532                                 if(q==2) putColorBox_X(rand()%width, rand()%height, TILEWH, TILEWH, 0);\r
 533                                 if(q==16) putPixel_X(rand()%width, rand()%height, 0);\r
 534                                 if(q==2||q==4||q==16){ bakax = rand()%3; bakay = rand()%3; }\r
 535                                 gq++;\r
 536 //if(xx<0||xx>320||yy<0||yy>240)\r
 537 //        printf("%d %d %d %d %d %d\n", xx, yy, coor, bakax, bakay, getPixel_X(xx,yy));\r
 538 //        printf("%d\n", getPixel_X(xx,yy));\r
 539 //0000\r
 540 //        drawText(0, 0, 15, getPixel_X(xx,yy));\r
 541                 }else gq = LGQ;\r
 542                 return gq;\r
 543 }\r
 544 \r
 545 \r
 546 /*\r
 547  * The library testing routines follows below.\r
 548  */\r
 549 \r
 550 \r
 551 #ifdef TESTING\r
 552 \r
 553 #include <stdio.h>\r
 554 #include <conio.h>\r
 555 \r
 556 void doTest(void)\r
 557                 {\r
 558                 int p, x, y, pages;\r
 559 \r
 560                 /* This is the way to calculate the number of pages available. */\r
 561                 pages = 65536L/(widthBytes*height); // apparently this takes the A000 address\r
 562 \r
 563                 printf("%d\n", pages);\r
 564 \r
 565                 for (p = 0; p <= pages; ++p)\r
 566                                 {\r
 567                                 setActivePage(p);\r
 568 \r
 569                                 /* On each page draw a single colored border, and dump the palette\r
 570                                    onto a small square about the middle of the page. */\r
 571 \r
 572                                    //{\r
 573                                                 for (x = 0; x <= width; ++x)\r
 574                                                                 {\r
 575                                                                 putPixel_X(x, 0, p+1);\r
 576                                                                 if(p!=pages) putPixel_X(x, height-1, p+1);\r
 577                                                                                 else putPixel_X(x, 99-1, p+1);\r
 578                                                                 }\r
 579 \r
 580                                                 for (y = 0; y <= height; ++y)\r
 581                                                                 {\r
 582                                                                 putPixel_X(0, y, p+1);\r
 583                                                                 if(p!=pages) putPixel_X(width-1, y, p+1);\r
 584                                                                                 else putPixel_X(width-1, y, p+1);\r
 585                                                                 }\r
 586 \r
 587                                                 for (x = 0; x < 16; ++x)\r
 588                                                                 for (y = 0; y < 16; ++y)\r
 589                                                                                 putPixel_X(x+(p+2)*16, y+(p+2)*16, x + y*16);\r
 590                                                 //}\r
 591 \r
 592                                 drawText(0, 0, 15, p);\r
 593 \r
 594                                 }\r
 595 \r
 596                 /* Each pages will now contain a different image.  Let the user cycle\r
 597                    through all the pages by pressing a key. */\r
 598                 for (p = 0; p <= pages; ++p)\r
 599                                 {\r
 600                                 setVisiblePage(p);\r
 601                                 //drawText(0, 240, 15, "bakapi");\r
 602                                 getch();\r
 603                                 }\r
 604 \r
 605                 }\r
 606 \r
 607 /*\r
 608  * Library test (program) entry point.\r
 609  */\r
 610 \r
 611 int main(void)\r
 612                 {\r
 613                 int key,d;\r
 614                 // main variables\r
 615                 d=1; // switch variable\r
 616                 key=4; // default screensaver number\r
 617 //        puts("First, have a look at the 320x200 mode.  I will draw some rubbish");\r
 618 //        puts("on all of the four pages, then let you cycle through them by");\r
 619 //        puts("hitting a key on each page.");\r
 620 //        puts("Press a key when ready...");\r
 621 //        getch();\r
 622 \r
 623 //        doTest();\r
 624 \r
 625 //        puts("Then, check out Mode X, 320x240 with 3 (and a half) pages.");\r
 626 //        puts("Press a key when ready...");\r
 627 //        getch();\r
 628 \r
 629                 setvideo(1);\r
 630 // screen savers\r
 631 \r
 632 /*while(d!=0){ // on!\r
 633                                 if(!kbhit()){ // conditions of screen saver\r
 634                                                 ding(key);\r
 635                                 }else{\r
 636                                                 setvideo(0);\r
 637                                                 // user imput switch\r
 638                                                 printf("Enter 1, 2, 3, 4, or 6 to run a screensaver, or enter 5 to quit.\n", getch());  // prompt the user\r
 639                                                 scanf("%d", &key);\r
 640                                                 //if(key==3){xx=yy=0;} // crazy screen saver wwww\r
 641                                                 if(key==5) d=0;\r
 642                                                 setvideo(1);\r
 643                                 }\r
 644                 }*/ // else off\r
 645                 while(!kbhit()){ // conditions of screen saver\r
 646                                 ding(4);\r
 647                 }\r
 648                 //end of screen savers\r
 649                 doTest();\r
 650                 setvideo(0);\r
 651                 puts("Where to next?  It's your move! wwww");\r
 652                 printf("bakapi ver. 1.04.09.01\nis made by sparky4\81i\81\86\83Ö\81\85\81j feel free to use it ^^\nLicence: GPL v2\n");\r
 653                 return 0;\r
 654                 }\r
 655 \r
 656 #endif\r