ite_cc.c revision 1.4
1 /* $NetBSD: ite_cc.c,v 1.4 1995/05/28 19:45:39 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) 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 fbp, 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, &vs, 0, -1); 206 view = viewview(ip->grf->g_viewdev); 207 208 /* 209 * Reinitialize our structs 210 */ 211 ip->cols = view->display.width / ip->font.width; 212 ip->rows = view->display.height / ip->font.height; 213 214 /* 215 * save new values so that future opens use them 216 * this may not be correct when we implement Virtual Consoles 217 */ 218 ite_default_height = view->display.height; 219 ite_default_width = view->display.width; 220 ite_default_x = view->display.x; 221 ite_default_y = view->display.y; 222 ite_default_depth = view->bitmap->depth; 223 224 if(cci->row_ptr && (cci->row_ptr != con_rows)) { 225 free(cci->row_ptr, M_DEVBUF); 226 cci->row_ptr = NULL; 227 } 228 if(cci->column_offset && (cci->column_offset != con_columns)) { 229 free(cci->column_offset, M_DEVBUF); 230 cci->column_offset = NULL; 231 } 232 233 if(!atari_realconfig) { 234 cci->row_ptr = con_rows; 235 cci->column_offset = con_columns; 236 } 237 else { 238 cci->row_ptr = malloc(sizeof(u_char *) * ip->rows,M_DEVBUF,M_NOWAIT); 239 cci->column_offset = malloc(sizeof(u_int)*ip->cols,M_DEVBUF,M_NOWAIT); 240 } 241 242 if(!cci->row_ptr || !cci->column_offset) 243 panic("No memory for ite-view"); 244 245 cci->width = view->bitmap->bytes_per_row << 3; 246 cci->underline = ip->font.baseline + 1; 247 cci->row_offset = view->bitmap->bytes_per_row; 248 cci->ft_x = ip->font.width; 249 cci->ft_y = ip->font.height; 250 cci->row_bytes = cci->row_offset * cci->ft_y; 251 cci->row_ptr[0] = view->bitmap->plane; 252 for(i = 1; i < ip->rows; i++) 253 cci->row_ptr[i] = cci->row_ptr[i-1] + cci->row_bytes; 254 255 /* 256 * Initialize the column offsets to point at the correct location 257 * in the first plane. This definitely assumes a font width of 8! 258 */ 259 j = view->bitmap->depth * 2; 260 cci->column_offset[0] = 0; 261 for(i = 1; i < ip->cols; i++) 262 cci->column_offset[i] = ((i >> 1) * j) + (i & 1); 263 264 /* initialize the font cell pointers */ 265 cci->font_cell[ip->font.font_lo] = ip->font.font_p; 266 for(i = ip->font.font_lo+1; i <= ip->font.font_hi; i++) 267 cci->font_cell[i] = cci->font_cell[i-1] + ip->font.height; 268 269 return(error); 270 } 271 272 int 273 ite_grf_ioctl(ip, cmd, addr, flag, p) 274 struct ite_softc *ip; 275 u_long cmd; 276 caddr_t addr; 277 int flag; 278 struct proc *p; 279 { 280 struct winsize ws; 281 struct itewinsize *is; 282 struct itebell *ib; 283 int error = 0; 284 ipriv_t *cci = ip->priv; 285 view_t *view = viewview(ip->grf->g_viewdev); 286 287 switch (cmd) { 288 case ITEIOCGWINSZ: 289 is = (struct itewinsize *)addr; 290 is->x = view->display.x; 291 is->y = view->display.y; 292 is->width = view->display.width; 293 is->height = view->display.height; 294 is->depth = view->bitmap->depth; 295 break; 296 case ITEIOCSWINSZ: 297 is = (struct itewinsize *)addr; 298 299 if(ite_newsize(ip, is)) 300 error = ENOMEM; 301 else { 302 view = viewview(ip->grf->g_viewdev); 303 ws.ws_row = ip->rows; 304 ws.ws_col = ip->cols; 305 ws.ws_xpixel = view->display.width; 306 ws.ws_ypixel = view->display.height; 307 ite_reset(ip); 308 /* 309 * XXX tell tty about the change 310 * XXX this is messy, but works 311 */ 312 iteioctl(ip->grf->g_itedev,TIOCSWINSZ,(caddr_t)&ws,0,p); 313 } 314 break; 315 case ITEIOCDSPWIN: 316 ip->grf->g_mode(ip->grf, GM_GRFON, NULL, 0, 0); 317 break; 318 case ITEIOCREMWIN: 319 ip->grf->g_mode(ip->grf, GM_GRFOFF, NULL, 0, 0); 320 break; 321 case ITEIOCGBELL: 322 #if 0 /* LWP */ 323 /* XXX This won't work now */ 324 /* XXX Should the bell be device dependent? */ 325 ib = (struct itebell *)addr; 326 ib->volume = bvolume; 327 ib->pitch = bpitch; 328 ib->msec = bmsec; 329 #endif 330 break; 331 case ITEIOCSBELL: 332 #if 0 /* LWP */ 333 /* XXX See above */ 334 ib = (struct itebell *)addr; 335 /* bounds check */ 336 if(ib->pitch > MAXBPITCH || ib->pitch < MINBPITCH || 337 ib->volume > MAXBVOLUME || ib->msec > MAXBTIME) 338 error = EINVAL; 339 else { 340 bvolume = ib->volume; 341 bpitch = ib->pitch; 342 bmsec = ib->msec; 343 } 344 #endif 345 break; 346 case VIOCSCMAP: 347 case VIOCGCMAP: 348 /* 349 * XXX watchout for that -1 its not really the kernel talking 350 * XXX these two commands don't use the proc pointer though 351 */ 352 error = viewioctl(ip->grf->g_viewdev, cmd, addr, flag, -1); 353 break; 354 default: 355 error = -1; 356 break; 357 } 358 return (error); 359 } 360 361 static void 362 cursor32(struct ite_softc *ip, int flag) 363 { 364 int cend; 365 u_char *pl; 366 ipriv_t *cci; 367 368 cci = ip->priv; 369 370 if(flag == END_CURSOROPT) 371 cci->cursor_opt--; 372 else if(flag == START_CURSOROPT) { 373 if(!cci->cursor_opt) 374 cursor32(ip, ERASE_CURSOR); 375 cci->cursor_opt++; 376 return; /* if we are already opted. */ 377 } 378 379 if(cci->cursor_opt) 380 return; /* if we are still nested. */ 381 /* else we draw the cursor. */ 382 383 if(flag != DRAW_CURSOR && flag != END_CURSOROPT) { 384 /* 385 * erase the cursor 386 */ 387 cend = ip->font.height-1; 388 pl = cci->column_offset[ip->cursorx] 389 + cci->row_ptr[ip->cursory]; 390 __asm__ __volatile__ 391 ("1: notb %0@ ; addaw %4,%0\n\t" 392 "dbra %1,1b" 393 : "=a" (pl), "=d" (cend) 394 : "0" (pl), "1" (cend), 395 "d" (cci->row_offset) 396 ); 397 } 398 399 if(flag != DRAW_CURSOR && flag != MOVE_CURSOR && flag != END_CURSOROPT) 400 return; 401 402 /* 403 * draw the cursor 404 */ 405 ip->cursorx = min(ip->curx, ip->cols-1); 406 ip->cursory = ip->cury; 407 cend = ip->font.height-1; 408 pl = cci->column_offset[ip->cursorx] 409 + cci->row_ptr[ip->cursory]; 410 411 __asm__ __volatile__ 412 ("1: notb %0@ ; addaw %4,%0\n\t" 413 "dbra %1,1b" 414 : "=a" (pl), "=d" (cend) 415 : "0" (pl), "1" (cend), 416 "d" (cci->row_offset) 417 ); 418 } 419 420 static void 421 putc8(struct ite_softc *ip, int c, int dy, int dx, int mode) 422 { 423 register ipriv_t *cci = (ipriv_t *)ip->priv; 424 register u_char *pl = cci->column_offset[dx] + cci->row_ptr[dy]; 425 register u_int fh = cci->ft_y; 426 register u_int ro = cci->row_offset; 427 register u_char eor_mask; 428 register u_char bl, tmp, ul; 429 register u_char *ft; 430 431 if(c < ip->font.font_lo || c > ip->font.font_hi) 432 return; 433 434 ft = cci->font_cell[c]; 435 436 if(!mode) { 437 while(fh--) { 438 *pl = *ft++; pl += ro; 439 } 440 return; 441 } 442 443 eor_mask = (mode & ATTR_INV) ? 0xff : 0x00; 444 bl = (mode & ATTR_BOLD) ? 1 : 0; 445 ul = (mode & ATTR_UL) ? fh - cci->underline : fh; 446 for(; fh--; pl += ro) { 447 if(fh != ul) { 448 tmp = *ft++; 449 if(bl) 450 tmp |= (tmp >> 1); 451 *pl = tmp ^ eor_mask; 452 } 453 else { 454 *pl = 0xff ^ eor_mask; 455 ft++; 456 } 457 } 458 } 459 460 static void 461 clear8(struct ite_softc *ip, int sy, int sx, int h, int w) 462 { 463 ipriv_t *cci = (ipriv_t *) ip->priv; 464 view_t *v = viewview(ip->grf->g_viewdev); 465 bmap_t *bm = v->bitmap; 466 467 if((sx == 0) && (w == ip->cols)) { 468 /* common case: clearing whole lines */ 469 while (h--) { 470 int i; 471 u_char *ptr = cci->row_ptr[sy]; 472 for(i = 0; i < ip->font.height; i++) { 473 bzero(ptr, bm->bytes_per_row); 474 ptr += bm->bytes_per_row; 475 } 476 sy++; 477 } 478 } 479 else { 480 /* 481 * clearing only part of a line 482 * XXX could be optimized MUCH better, but is it worth the 483 * trouble? 484 */ 485 486 int i; 487 u_char *pls, *ple; 488 489 pls = cci->row_ptr[sy]; 490 ple = pls + cci->column_offset[sx + w-1]; 491 pls = pls + cci->column_offset[sx]; 492 493 for(i = ((ip->font.height) * h)-1; i >= 0; i--) { 494 u_char *p = pls; 495 while(p <= ple) 496 *p++ = 0; 497 pls += bm->bytes_per_row; 498 ple += bm->bytes_per_row; 499 } 500 } 501 } 502 503 /* Note: sx is only relevant for SCROLL_LEFT or SCROLL_RIGHT. */ 504 static void 505 scroll8(ip, sy, sx, count, dir) 506 register struct ite_softc *ip; 507 register int sy; 508 int dir, sx, count; 509 { 510 bmap_t *bm = viewview(ip->grf->g_viewdev)->bitmap; 511 u_char *pl = ((ipriv_t *)ip->priv)->row_ptr[sy]; 512 513 if(dir == SCROLL_UP) { 514 int dy = sy - count; 515 int height = ip->bottom_margin - sy + 1; 516 int i; 517 518 cursor32(ip, ERASE_CURSOR); 519 scrollbmap(bm, 0, dy*ip->font.height, bm->bytes_per_row >> 3, 520 (ip->bottom_margin-dy+1)*ip->font.height, 521 0, -(count*ip->font.height)); 522 } 523 else if(dir == SCROLL_DOWN) { 524 int dy = sy + count; 525 int height = ip->bottom_margin - dy + 1; 526 int i; 527 528 cursor32(ip, ERASE_CURSOR); 529 scrollbmap(bm, 0, sy*ip->font.height, bm->bytes_per_row >> 3, 530 (ip->bottom_margin-sy+1)*ip->font.height, 531 0, count*ip->font.height); 532 } 533 else if(dir == SCROLL_RIGHT) { 534 int sofs = (ip->cols - count) * ip->font.width; 535 int dofs = (ip->cols) * ip->font.width; 536 int i, j; 537 538 cursor32(ip, ERASE_CURSOR); 539 for(j = ip->font.height-1; j >= 0; j--) { 540 int sofs2 = sofs, dofs2 = dofs; 541 for (i = (ip->cols - (sx + count))-1; i >= 0; i--) { 542 int t; 543 sofs2 -= ip->font.width; 544 dofs2 -= ip->font.width; 545 asm("bfextu %1@{%2:%3},%0" : "=d" (t) 546 : "a" (pl), "d" (sofs2), "d" (ip->font.width)); 547 asm("bfins %3,%0@{%1:%2}" : 548 : "a" (pl), "d" (dofs2), "d" (ip->font.width), 549 "d" (t)); 550 } 551 pl += bm->bytes_per_row; 552 } 553 } 554 else { /* SCROLL_LEFT */ 555 int sofs = (sx) * ip->font.width; 556 int dofs = (sx - count) * ip->font.width; 557 int i, j; 558 559 cursor32(ip, ERASE_CURSOR); 560 for(j = ip->font.height-1; j >= 0; j--) { 561 int sofs2 = sofs, dofs2 = dofs; 562 for(i = (ip->cols - sx)-1; i >= 0; i--) { 563 int t; 564 565 asm("bfextu %1@{%2:%3},%0" : "=d" (t) 566 : "a" (pl), "d" (sofs2), "d" (ip->font.width)); 567 asm("bfins %3,%0@{%1:%2}" 568 : : "a" (pl), "d" (dofs2),"d" (ip->font.width), 569 "d" (t)); 570 sofs2 += ip->font.width; 571 dofs2 += ip->font.width; 572 } 573 pl += bm->bytes_per_row; 574 } 575 } 576 } 577 578 static void 579 scrollbmap (bmap_t *bm, u_short x, u_short y, u_short width, u_short height, short dx, short dy) 580 { 581 u_short depth = bm->depth; 582 u_short lwpr = bm->bytes_per_row >> 2; 583 584 if(dx) { 585 /* FIX: */ panic ("delta x not supported in scroll bitmap yet."); 586 } 587 588 if(dy == 0) { 589 return; 590 } 591 if(dy > 0) { 592 u_long *pl = (u_long *)bm->plane; 593 u_long *src_y = pl + (lwpr*y); 594 u_long *dest_y = pl + (lwpr*(y+dy)); 595 u_long count = lwpr*(height-dy); 596 u_long *clr_y = src_y; 597 u_long clr_count = dest_y - src_y; 598 u_long bc, cbc; 599 600 src_y += count - 1; 601 dest_y += count - 1; 602 603 bc = count >> 4; 604 count &= 0xf; 605 606 while (bc--) { 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 *dest_y-- = *src_y--; *dest_y-- = *src_y--; 612 *dest_y-- = *src_y--; *dest_y-- = *src_y--; 613 *dest_y-- = *src_y--; *dest_y-- = *src_y--; 614 *dest_y-- = *src_y--; *dest_y-- = *src_y--; 615 } 616 while (count--) 617 *dest_y-- = *src_y--; 618 619 cbc = clr_count >> 4; 620 clr_count &= 0xf; 621 622 while (cbc--) { 623 *clr_y++ = 0; *clr_y++ = 0; *clr_y++ = 0; *clr_y++ = 0; 624 *clr_y++ = 0; *clr_y++ = 0; *clr_y++ = 0; *clr_y++ = 0; 625 *clr_y++ = 0; *clr_y++ = 0; *clr_y++ = 0; *clr_y++ = 0; 626 *clr_y++ = 0; *clr_y++ = 0; *clr_y++ = 0; *clr_y++ = 0; 627 } 628 while(clr_count--) 629 *clr_y++ = 0; 630 } 631 else { 632 u_long *pl = (u_long *)bm->plane; 633 u_long *src_y = pl + (lwpr*(y-dy)); 634 u_long *dest_y = pl + (lwpr*y); 635 long count = lwpr*(height + dy); 636 u_long *clr_y = dest_y + count; 637 u_long clr_count = src_y - dest_y; 638 u_long bc, cbc; 639 640 bc = count >> 4; 641 count &= 0xf; 642 643 while(bc--) { 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 *dest_y++ = *src_y++; *dest_y++ = *src_y++; 649 *dest_y++ = *src_y++; *dest_y++ = *src_y++; 650 *dest_y++ = *src_y++; *dest_y++ = *src_y++; 651 *dest_y++ = *src_y++; *dest_y++ = *src_y++; 652 } 653 while(count--) 654 *dest_y++ = *src_y++; 655 656 cbc = clr_count >> 4; 657 clr_count &= 0xf; 658 659 while (cbc--) { 660 *clr_y++ = 0; *clr_y++ = 0; *clr_y++ = 0; *clr_y++ = 0; 661 *clr_y++ = 0; *clr_y++ = 0; *clr_y++ = 0; *clr_y++ = 0; 662 *clr_y++ = 0; *clr_y++ = 0; *clr_y++ = 0; *clr_y++ = 0; 663 *clr_y++ = 0; *clr_y++ = 0; *clr_y++ = 0; *clr_y++ = 0; 664 } 665 while (clr_count--) 666 *clr_y++ = 0; 667 } 668 } 669 #else 670 #error Must be defined 671 #endif /* NGRF */ 672
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