ite_cc.c revision 1.6
1 /* $NetBSD: ite_cc.c,v 1.6 1996/04/18 08:52:02 leo Exp $ */ 2 3 /* 4 * Copyright (c) 1994 Christian E. Hopps 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by Christian E. Hopps. 18 * 4. The name of the author may not be used to endorse or promote products 19 * derived from this software without specific prior written permission 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 22 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 23 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 24 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 26 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 30 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33 #include "grf.h" 34 #if NGRF > 0 35 36 #include <sys/param.h> 37 #include <sys/conf.h> 38 #include <sys/proc.h> 39 #include <sys/device.h> 40 #include <sys/ioctl.h> 41 #include <sys/tty.h> 42 #include <sys/systm.h> 43 #include <sys/queue.h> 44 #include <sys/termios.h> 45 #include <sys/malloc.h> 46 #include <dev/cons.h> 47 #include <machine/cpu.h> 48 #include <atari/dev/itevar.h> 49 #include <atari/dev/iteioctl.h> 50 #include <atari/dev/grfioctl.h> 51 #include <atari/dev/grfabs_reg.h> 52 #include <atari/dev/grfvar.h> 53 #include <atari/dev/font.h> 54 #include <atari/dev/viewioctl.h> 55 #include <atari/dev/viewvar.h> 56 57 /* 58 * This is what ip->priv points to; 59 * it contains local variables for custom-chip ites. 60 */ 61 struct ite_priv { 62 u_char **row_ptr; /* array of pointers into the bitmap */ 63 u_long row_bytes; 64 u_long cursor_opt; 65 u_short *column_offset; /* array of offsets for columns */ 66 u_int row_offset; /* the row offset */ 67 u_short width; /* the bitmap width */ 68 u_short underline; /* where the underline goes */ 69 u_short ft_x; /* the font width */ 70 u_short ft_y; /* the font height */ 71 u_char *font_cell[256];/* the font pointer */ 72 }; 73 typedef struct ite_priv ipriv_t; 74 75 /* 76 * We need the following space to get an ite-console setup before 77 * the VM-system is brought up. We setup for a 1280x960 monitor with 78 * an 8x8 font. 79 */ 80 extern int atari_realconfig; 81 82 #define CONS_MAXROW 120 /* Max. number of rows on console */ 83 #define CONS_MAXCOL 160 /* Max. number of columns on console */ 84 static u_short con_columns[CONS_MAXCOL]; 85 static u_char *con_rows[CONS_MAXROW]; 86 static ipriv_t con_ipriv; 87 88 extern font_info font_info_8x8; 89 extern font_info font_info_8x16; 90 91 static void view_init __P((struct ite_softc *)); 92 static void view_deinit __P((struct ite_softc *)); 93 static int ite_newsize __P((struct ite_softc *, struct itewinsize *)); 94 static void cursor32 __P((struct ite_softc *, int)); 95 static void putc8 __P((struct ite_softc *, int, int, int, int)); 96 static void clear8 __P((struct ite_softc *, int, int, int, int)); 97 static void scroll8 __P((struct ite_softc *, int, int, int, int)); 98 static void scrollbmap __P((bmap_t *, u_short, u_short, u_short, u_short, 99 short, short)); 100 101 /* 102 * Patchable 103 */ 104 int ite_default_x = 0; /* def leftedge offset */ 105 int ite_default_y = 0; /* def topedge offset */ 106 int ite_default_width = 640; /* def width */ 107 int ite_default_depth = 1; /* def depth */ 108 int ite_default_height = 400; /* def height */ 109 110 /* 111 * called from grf_cc to return console priority 112 */ 113 int 114 grfcc_cnprobe() 115 { 116 return(CN_INTERNAL); 117 } 118 /* 119 * called from grf_cc to init ite portion of 120 * grf_softc struct 121 */ 122 void 123 grfcc_iteinit(gp) 124 struct grf_softc *gp; 125 { 126 127 gp->g_itecursor = cursor32; 128 gp->g_iteputc = putc8; 129 gp->g_iteclear = clear8; 130 gp->g_itescroll = scroll8; 131 gp->g_iteinit = view_init; 132 gp->g_itedeinit = view_deinit; 133 } 134 135 static void 136 view_deinit(ip) 137 struct ite_softc *ip; 138 { 139 ip->flags &= ~ITE_INITED; 140 } 141 142 static void 143 view_init(ip) 144 register struct ite_softc *ip; 145 { 146 struct itewinsize wsz; 147 ipriv_t *cci; 148 149 if((cci = ip->priv) != NULL) 150 return; 151 152 #if defined(KFONT_8X8) 153 ip->font = font_info_8x8; 154 #else 155 ip->font = font_info_8x16; 156 #endif 157 158 /* Find the correct set of rendering routines for this font. */ 159 if(ip->font.width != 8) 160 panic("kernel font size not supported"); 161 162 if(!atari_realconfig) 163 ip->priv = cci = &con_ipriv; 164 else ip->priv = cci = (ipriv_t*)malloc(sizeof(*cci), M_DEVBUF,M_WAITOK); 165 if(cci == NULL) 166 panic("No memory for ite-view"); 167 bzero(cci, sizeof(*cci)); 168 169 cci->cursor_opt = 0; 170 cci->row_ptr = NULL; 171 cci->column_offset = NULL; 172 173 wsz.x = ite_default_x; 174 wsz.y = ite_default_y; 175 wsz.width = ite_default_width; 176 wsz.height = ite_default_height; 177 wsz.depth = ite_default_depth; 178 179 ite_newsize (ip, &wsz); 180 181 /* 182 * Only console will be turned on by default.. 183 */ 184 if(ip->flags & ITE_ISCONS) 185 ip->grf->g_mode(ip->grf, GM_GRFON, NULL, 0, 0); 186 } 187 188 static int 189 ite_newsize(ip, winsz) 190 struct ite_softc *ip; 191 struct itewinsize *winsz; 192 { 193 struct view_size vs; 194 ipriv_t *cci = ip->priv; 195 u_long i, j; 196 int error = 0; 197 view_t *view; 198 199 vs.x = winsz->x; 200 vs.y = winsz->y; 201 vs.width = winsz->width; 202 vs.height = winsz->height; 203 vs.depth = winsz->depth; 204 205 error = viewioctl(ip->grf->g_viewdev, VIOCSSIZE, (caddr_t)&vs, 0, 206 NOPROC); 207 view = viewview(ip->grf->g_viewdev); 208 209 /* 210 * Reinitialize our structs 211 */ 212 ip->cols = view->display.width / ip->font.width; 213 ip->rows = view->display.height / ip->font.height; 214 215 /* 216 * save new values so that future opens use them 217 * this may not be correct when we implement Virtual Consoles 218 */ 219 ite_default_height = view->display.height; 220 ite_default_width = view->display.width; 221 ite_default_x = view->display.x; 222 ite_default_y = view->display.y; 223 ite_default_depth = view->bitmap->depth; 224 225 if(cci->row_ptr && (cci->row_ptr != con_rows)) { 226 free(cci->row_ptr, M_DEVBUF); 227 cci->row_ptr = NULL; 228 } 229 if(cci->column_offset && (cci->column_offset != con_columns)) { 230 free(cci->column_offset, M_DEVBUF); 231 cci->column_offset = NULL; 232 } 233 234 if(!atari_realconfig) { 235 cci->row_ptr = con_rows; 236 cci->column_offset = con_columns; 237 } 238 else { 239 cci->row_ptr = malloc(sizeof(u_char *) * ip->rows,M_DEVBUF,M_NOWAIT); 240 cci->column_offset = malloc(sizeof(u_int)*ip->cols,M_DEVBUF,M_NOWAIT); 241 } 242 243 if(!cci->row_ptr || !cci->column_offset) 244 panic("No memory for ite-view"); 245 246 cci->width = view->bitmap->bytes_per_row << 3; 247 cci->underline = ip->font.baseline + 1; 248 cci->row_offset = view->bitmap->bytes_per_row; 249 cci->ft_x = ip->font.width; 250 cci->ft_y = ip->font.height; 251 cci->row_bytes = cci->row_offset * cci->ft_y; 252 cci->row_ptr[0] = view->bitmap->plane; 253 for(i = 1; i < ip->rows; i++) 254 cci->row_ptr[i] = cci->row_ptr[i-1] + cci->row_bytes; 255 256 /* 257 * Initialize the column offsets to point at the correct location 258 * in the first plane. This definitely assumes a font width of 8! 259 */ 260 j = view->bitmap->depth * 2; 261 cci->column_offset[0] = 0; 262 for(i = 1; i < ip->cols; i++) 263 cci->column_offset[i] = ((i >> 1) * j) + (i & 1); 264 265 /* initialize the font cell pointers */ 266 cci->font_cell[ip->font.font_lo] = ip->font.font_p; 267 for(i = ip->font.font_lo+1; i <= ip->font.font_hi; i++) 268 cci->font_cell[i] = cci->font_cell[i-1] + ip->font.height; 269 270 return(error); 271 } 272 273 int 274 ite_grf_ioctl(ip, cmd, addr, flag, p) 275 struct ite_softc *ip; 276 u_long cmd; 277 caddr_t addr; 278 int flag; 279 struct proc *p; 280 { 281 struct winsize ws; 282 struct itewinsize *is; 283 int error = 0; 284 view_t *view = viewview(ip->grf->g_viewdev); 285 #if 0 /* LWP: notyet */ 286 struct itebell *ib; 287 #endif 288 289 switch (cmd) { 290 case ITEIOCGWINSZ: 291 is = (struct itewinsize *)addr; 292 is->x = view->display.x; 293 is->y = view->display.y; 294 is->width = view->display.width; 295 is->height = view->display.height; 296 is->depth = view->bitmap->depth; 297 break; 298 case ITEIOCSWINSZ: 299 is = (struct itewinsize *)addr; 300 301 if(ite_newsize(ip, is)) 302 error = ENOMEM; 303 else { 304 view = viewview(ip->grf->g_viewdev); 305 ws.ws_row = ip->rows; 306 ws.ws_col = ip->cols; 307 ws.ws_xpixel = view->display.width; 308 ws.ws_ypixel = view->display.height; 309 ite_reset(ip); 310 /* 311 * XXX tell tty about the change 312 * XXX this is messy, but works 313 */ 314 iteioctl(ip->grf->g_itedev,TIOCSWINSZ,(caddr_t)&ws,0,p); 315 } 316 break; 317 case ITEIOCDSPWIN: 318 ip->grf->g_mode(ip->grf, GM_GRFON, NULL, 0, 0); 319 break; 320 case ITEIOCREMWIN: 321 ip->grf->g_mode(ip->grf, GM_GRFOFF, NULL, 0, 0); 322 break; 323 case ITEIOCGBELL: 324 #if 0 /* LWP */ 325 /* XXX This won't work now */ 326 /* XXX Should the bell be device dependent? */ 327 ib = (struct itebell *)addr; 328 ib->volume = bvolume; 329 ib->pitch = bpitch; 330 ib->msec = bmsec; 331 #endif 332 break; 333 case ITEIOCSBELL: 334 #if 0 /* LWP */ 335 /* XXX See above */ 336 ib = (struct itebell *)addr; 337 /* bounds check */ 338 if(ib->pitch > MAXBPITCH || ib->pitch < MINBPITCH || 339 ib->volume > MAXBVOLUME || ib->msec > MAXBTIME) 340 error = EINVAL; 341 else { 342 bvolume = ib->volume; 343 bpitch = ib->pitch; 344 bmsec = ib->msec; 345 } 346 #endif 347 break; 348 case VIOCSCMAP: 349 case VIOCGCMAP: 350 /* 351 * XXX watchout for that NOPROC. its not really the kernel 352 * XXX talking these two commands don't use the proc pointer 353 * XXX though. 354 */ 355 error = viewioctl(ip->grf->g_viewdev, cmd, addr, flag, NOPROC); 356 break; 357 default: 358 error = -1; 359 break; 360 } 361 return (error); 362 } 363 364 static void 365 cursor32(struct ite_softc *ip, int flag) 366 { 367 int cend; 368 u_char *pl; 369 ipriv_t *cci; 370 371 cci = ip->priv; 372 373 if(flag == END_CURSOROPT) 374 cci->cursor_opt--; 375 else if(flag == START_CURSOROPT) { 376 if(!cci->cursor_opt) 377 cursor32(ip, ERASE_CURSOR); 378 cci->cursor_opt++; 379 return; /* if we are already opted. */ 380 } 381 382 if(cci->cursor_opt) 383 return; /* if we are still nested. */ 384 /* else we draw the cursor. */ 385 386 if(flag != DRAW_CURSOR && flag != END_CURSOROPT) { 387 /* 388 * erase the cursor 389 */ 390 cend = ip->font.height-1; 391 pl = cci->column_offset[ip->cursorx] 392 + cci->row_ptr[ip->cursory]; 393 __asm__ __volatile__ 394 ("1: notb %0@ ; addaw %4,%0\n\t" 395 "dbra %1,1b" 396 : "=a" (pl), "=d" (cend) 397 : "0" (pl), "1" (cend), 398 "d" (cci->row_offset) 399 ); 400 } 401 402 if(flag != DRAW_CURSOR && flag != MOVE_CURSOR && flag != END_CURSOROPT) 403 return; 404 405 /* 406 * draw the cursor 407 */ 408 ip->cursorx = min(ip->curx, ip->cols-1); 409 ip->cursory = ip->cury; 410 cend = ip->font.height-1; 411 pl = cci->column_offset[ip->cursorx] 412 + cci->row_ptr[ip->cursory]; 413 414 __asm__ __volatile__ 415 ("1: notb %0@ ; addaw %4,%0\n\t" 416 "dbra %1,1b" 417 : "=a" (pl), "=d" (cend) 418 : "0" (pl), "1" (cend), 419 "d" (cci->row_offset) 420 ); 421 } 422 423 static void 424 putc8(struct ite_softc *ip, int c, int dy, int dx, int mode) 425 { 426 register ipriv_t *cci = (ipriv_t *)ip->priv; 427 register u_char *pl = cci->column_offset[dx] + cci->row_ptr[dy]; 428 register u_int fh = cci->ft_y; 429 register u_int ro = cci->row_offset; 430 register u_char eor_mask; 431 register u_char bl, tmp, ul; 432 register u_char *ft; 433 434 if(c < ip->font.font_lo || c > ip->font.font_hi) 435 return; 436 437 ft = cci->font_cell[c]; 438 439 if(!mode) { 440 while(fh--) { 441 *pl = *ft++; pl += ro; 442 } 443 return; 444 } 445 446 eor_mask = (mode & ATTR_INV) ? 0xff : 0x00; 447 bl = (mode & ATTR_BOLD) ? 1 : 0; 448 ul = (mode & ATTR_UL) ? fh - cci->underline : fh; 449 for(; fh--; pl += ro) { 450 if(fh != ul) { 451 tmp = *ft++; 452 if(bl) 453 tmp |= (tmp >> 1); 454 *pl = tmp ^ eor_mask; 455 } 456 else { 457 *pl = 0xff ^ eor_mask; 458 ft++; 459 } 460 } 461 } 462 463 static void 464 clear8(struct ite_softc *ip, int sy, int sx, int h, int w) 465 { 466 ipriv_t *cci = (ipriv_t *) ip->priv; 467 view_t *v = viewview(ip->grf->g_viewdev); 468 bmap_t *bm = v->bitmap; 469 470 if((sx == 0) && (w == ip->cols)) { 471 /* common case: clearing whole lines */ 472 while (h--) { 473 int i; 474 u_char *ptr = cci->row_ptr[sy]; 475 for(i = 0; i < ip->font.height; i++) { 476 bzero(ptr, bm->bytes_per_row); 477 ptr += bm->bytes_per_row; 478 } 479 sy++; 480 } 481 } 482 else { 483 /* 484 * clearing only part of a line 485 * XXX could be optimized MUCH better, but is it worth the 486 * trouble? 487 */ 488 489 int i; 490 u_char *pls, *ple; 491 492 pls = cci->row_ptr[sy]; 493 ple = pls + cci->column_offset[sx + w-1]; 494 pls = pls + cci->column_offset[sx]; 495 496 for(i = ((ip->font.height) * h)-1; i >= 0; i--) { 497 u_char *p = pls; 498 while(p <= ple) 499 *p++ = 0; 500 pls += bm->bytes_per_row; 501 ple += bm->bytes_per_row; 502 } 503 } 504 } 505 506 /* Note: sx is only relevant for SCROLL_LEFT or SCROLL_RIGHT. */ 507 static void 508 scroll8(ip, sy, sx, count, dir) 509 register struct ite_softc *ip; 510 register int sy; 511 int dir, sx, count; 512 { 513 bmap_t *bm = viewview(ip->grf->g_viewdev)->bitmap; 514 u_char *pl = ((ipriv_t *)ip->priv)->row_ptr[sy]; 515 516 if(dir == SCROLL_UP) { 517 int dy = sy - count; 518 519 cursor32(ip, ERASE_CURSOR); 520 scrollbmap(bm, 0, dy*ip->font.height, bm->bytes_per_row >> 3, 521 (ip->bottom_margin-dy+1)*ip->font.height, 522 0, -(count*ip->font.height)); 523 } 524 else if(dir == SCROLL_DOWN) { 525 cursor32(ip, ERASE_CURSOR); 526 scrollbmap(bm, 0, sy*ip->font.height, bm->bytes_per_row >> 3, 527 (ip->bottom_margin-sy+1)*ip->font.height, 528 0, count*ip->font.height); 529 } 530 else if(dir == SCROLL_RIGHT) { 531 int sofs = (ip->cols - count) * ip->font.width; 532 int dofs = (ip->cols) * ip->font.width; 533 int i, j; 534 535 cursor32(ip, ERASE_CURSOR); 536 for(j = ip->font.height-1; j >= 0; j--) { 537 int sofs2 = sofs, dofs2 = dofs; 538 for (i = (ip->cols - (sx + count))-1; i >= 0; i--) { 539 int t; 540 sofs2 -= ip->font.width; 541 dofs2 -= ip->font.width; 542 asm("bfextu %1@{%2:%3},%0" : "=d" (t) 543 : "a" (pl), "d" (sofs2), "d" (ip->font.width)); 544 asm("bfins %3,%0@{%1:%2}" : 545 : "a" (pl), "d" (dofs2), "d" (ip->font.width), 546 "d" (t)); 547 } 548 pl += bm->bytes_per_row; 549 } 550 } 551 else { /* SCROLL_LEFT */ 552 int sofs = (sx) * ip->font.width; 553 int dofs = (sx - count) * ip->font.width; 554 int i, j; 555 556 cursor32(ip, ERASE_CURSOR); 557 for(j = ip->font.height-1; j >= 0; j--) { 558 int sofs2 = sofs, dofs2 = dofs; 559 for(i = (ip->cols - sx)-1; i >= 0; i--) { 560 int t; 561 562 asm("bfextu %1@{%2:%3},%0" : "=d" (t) 563 : "a" (pl), "d" (sofs2), "d" (ip->font.width)); 564 asm("bfins %3,%0@{%1:%2}" 565 : : "a" (pl), "d" (dofs2),"d" (ip->font.width), 566 "d" (t)); 567 sofs2 += ip->font.width; 568 dofs2 += ip->font.width; 569 } 570 pl += bm->bytes_per_row; 571 } 572 } 573 } 574 575 static void 576 scrollbmap (bmap_t *bm, u_short x, u_short y, u_short width, u_short height, short dx, short dy) 577 { 578 u_short lwpr = bm->bytes_per_row >> 2; 579 580 if(dx) { 581 /* FIX: */ panic ("delta x not supported in scroll bitmap yet."); 582 } 583 584 if(dy == 0) { 585 return; 586 } 587 if(dy > 0) { 588 u_long *pl = (u_long *)bm->plane; 589 u_long *src_y = pl + (lwpr*y); 590 u_long *dest_y = pl + (lwpr*(y+dy)); 591 u_long count = lwpr*(height-dy); 592 u_long *clr_y = src_y; 593 u_long clr_count = dest_y - src_y; 594 u_long bc, cbc; 595 596 src_y += count - 1; 597 dest_y += count - 1; 598 599 bc = count >> 4; 600 count &= 0xf; 601 602 while (bc--) { 603 *dest_y-- = *src_y--; *dest_y-- = *src_y--; 604 *dest_y-- = *src_y--; *dest_y-- = *src_y--; 605 *dest_y-- = *src_y--; *dest_y-- = *src_y--; 606 *dest_y-- = *src_y--; *dest_y-- = *src_y--; 607 *dest_y-- = *src_y--; *dest_y-- = *src_y--; 608 *dest_y-- = *src_y--; *dest_y-- = *src_y--; 609 *dest_y-- = *src_y--; *dest_y-- = *src_y--; 610 *dest_y-- = *src_y--; *dest_y-- = *src_y--; 611 } 612 while (count--) 613 *dest_y-- = *src_y--; 614 615 cbc = clr_count >> 4; 616 clr_count &= 0xf; 617 618 while (cbc--) { 619 *clr_y++ = 0; *clr_y++ = 0; *clr_y++ = 0; *clr_y++ = 0; 620 *clr_y++ = 0; *clr_y++ = 0; *clr_y++ = 0; *clr_y++ = 0; 621 *clr_y++ = 0; *clr_y++ = 0; *clr_y++ = 0; *clr_y++ = 0; 622 *clr_y++ = 0; *clr_y++ = 0; *clr_y++ = 0; *clr_y++ = 0; 623 } 624 while(clr_count--) 625 *clr_y++ = 0; 626 } 627 else { 628 u_long *pl = (u_long *)bm->plane; 629 u_long *src_y = pl + (lwpr*(y-dy)); 630 u_long *dest_y = pl + (lwpr*y); 631 long count = lwpr*(height + dy); 632 u_long *clr_y = dest_y + count; 633 u_long clr_count = src_y - dest_y; 634 u_long bc, cbc; 635 636 bc = count >> 4; 637 count &= 0xf; 638 639 while(bc--) { 640 *dest_y++ = *src_y++; *dest_y++ = *src_y++; 641 *dest_y++ = *src_y++; *dest_y++ = *src_y++; 642 *dest_y++ = *src_y++; *dest_y++ = *src_y++; 643 *dest_y++ = *src_y++; *dest_y++ = *src_y++; 644 *dest_y++ = *src_y++; *dest_y++ = *src_y++; 645 *dest_y++ = *src_y++; *dest_y++ = *src_y++; 646 *dest_y++ = *src_y++; *dest_y++ = *src_y++; 647 *dest_y++ = *src_y++; *dest_y++ = *src_y++; 648 } 649 while(count--) 650 *dest_y++ = *src_y++; 651 652 cbc = clr_count >> 4; 653 clr_count &= 0xf; 654 655 while (cbc--) { 656 *clr_y++ = 0; *clr_y++ = 0; *clr_y++ = 0; *clr_y++ = 0; 657 *clr_y++ = 0; *clr_y++ = 0; *clr_y++ = 0; *clr_y++ = 0; 658 *clr_y++ = 0; *clr_y++ = 0; *clr_y++ = 0; *clr_y++ = 0; 659 *clr_y++ = 0; *clr_y++ = 0; *clr_y++ = 0; *clr_y++ = 0; 660 } 661 while (clr_count--) 662 *clr_y++ = 0; 663 } 664 } 665 #else 666 #error Must be defined 667 #endif /* NGRF */ 668
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