rasops1.c revision 1.14
1 /* $NetBSD: rasops1.c,v 1.14 2001/11/13 07:00:23 lukem Exp $ */ 2 3 /*- 4 * Copyright (c) 1999 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Andrew Doran. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 #include <sys/cdefs.h> 40 __KERNEL_RCSID(0, "$NetBSD: rasops1.c,v 1.14 2001/11/13 07:00:23 lukem Exp $"); 41 42 #include "opt_rasops.h" 43 44 #include <sys/types.h> 45 #include <sys/param.h> 46 #include <sys/systm.h> 47 #include <sys/time.h> 48 #include <machine/endian.h> 49 50 #include <dev/wscons/wsdisplayvar.h> 51 #include <dev/wscons/wsconsio.h> 52 #include <dev/rasops/rasops.h> 53 #include <dev/rasops/rasops_masks.h> 54 55 static void rasops1_copycols __P((void *, int, int, int, int)); 56 static void rasops1_erasecols __P((void *, int, int, int, long)); 57 static void rasops1_do_cursor __P((struct rasops_info *)); 58 static void rasops1_putchar __P((void *, int, int col, u_int, long)); 59 #ifndef RASOPS_SMALL 60 static void rasops1_putchar8 __P((void *, int, int col, u_int, long)); 61 static void rasops1_putchar16 __P((void *, int, int col, u_int, long)); 62 #endif 63 64 /* 65 * Initialize rasops_info struct for this colordepth. 66 */ 67 void 68 rasops1_init(ri) 69 struct rasops_info *ri; 70 { 71 72 switch (ri->ri_font->fontwidth) { 73 #ifndef RASOPS_SMALL 74 case 8: 75 ri->ri_ops.putchar = rasops1_putchar8; 76 break; 77 case 16: 78 ri->ri_ops.putchar = rasops1_putchar16; 79 break; 80 #endif 81 default: 82 ri->ri_ops.putchar = rasops1_putchar; 83 break; 84 } 85 86 if ((ri->ri_font->fontwidth & 7) != 0) { 87 ri->ri_ops.erasecols = rasops1_erasecols; 88 ri->ri_ops.copycols = rasops1_copycols; 89 ri->ri_do_cursor = rasops1_do_cursor; 90 } 91 } 92 93 /* 94 * Paint a single character. This is the generic version, this is ugly. 95 */ 96 static void 97 rasops1_putchar(cookie, row, col, uc, attr) 98 void *cookie; 99 int row, col; 100 u_int uc; 101 long attr; 102 { 103 u_int fs, rs, fb, bg, fg, lmask, rmask; 104 u_int32_t height, width; 105 struct rasops_info *ri; 106 int32_t *rp; 107 u_char *fr; 108 109 ri = (struct rasops_info *)cookie; 110 111 #ifdef RASOPS_CLIPPING 112 /* Catches 'row < 0' case too */ 113 if ((unsigned)row >= (unsigned)ri->ri_rows) 114 return; 115 116 if ((unsigned)col >= (unsigned)ri->ri_cols) 117 return; 118 #endif 119 120 col *= ri->ri_font->fontwidth; 121 rp = (int32_t *)(ri->ri_bits + row * ri->ri_yscale + ((col >> 3) & ~3)); 122 height = ri->ri_font->fontheight; 123 width = ri->ri_font->fontwidth; 124 col = col & 31; 125 rs = ri->ri_stride; 126 127 bg = (attr & 0x000f0000) ? ri->ri_devcmap[1] : ri->ri_devcmap[0]; 128 fg = (attr & 0x0f000000) ? ri->ri_devcmap[1] : ri->ri_devcmap[0]; 129 130 /* If fg and bg match this becomes a space character */ 131 if (fg == bg || uc == ' ') { 132 uc = (u_int)-1; 133 fr = 0; /* shutup gcc */ 134 fs = 0; /* shutup gcc */ 135 } else { 136 uc -= ri->ri_font->firstchar; 137 fr = (u_char *)ri->ri_font->data + uc * ri->ri_fontscale; 138 fs = ri->ri_font->stride; 139 } 140 141 /* Single word, one mask */ 142 if ((col + width) <= 32) { 143 rmask = rasops_pmask[col][width]; 144 lmask = ~rmask; 145 146 if (uc == (u_int)-1) { 147 bg &= rmask; 148 149 while (height--) { 150 *rp = (*rp & lmask) | bg; 151 DELTA(rp, rs, int32_t *); 152 } 153 } else { 154 /* NOT fontbits if bg is white */ 155 if (bg) { 156 while (height--) { 157 fb = ~(fr[3] | (fr[2] << 8) | 158 (fr[1] << 16) | (fr[0] << 24)); 159 *rp = (*rp & lmask) 160 | (MBE(fb >> col) & rmask); 161 162 fr += fs; 163 DELTA(rp, rs, int32_t *); 164 } 165 } else { 166 while (height--) { 167 fb = (fr[3] | (fr[2] << 8) | 168 (fr[1] << 16) | (fr[0] << 24)); 169 *rp = (*rp & lmask) 170 | (MBE(fb >> col) & rmask); 171 172 fr += fs; 173 DELTA(rp, rs, int32_t *); 174 } 175 } 176 } 177 178 /* Do underline */ 179 if ((attr & 1) != 0) { 180 DELTA(rp, -(ri->ri_stride << 1), int32_t *); 181 *rp = (*rp & lmask) | (fg & rmask); 182 } 183 } else { 184 lmask = ~rasops_lmask[col]; 185 rmask = ~rasops_rmask[(col + width) & 31]; 186 187 if (uc == (u_int)-1) { 188 width = bg & ~rmask; 189 bg = bg & ~lmask; 190 191 while (height--) { 192 rp[0] = (rp[0] & lmask) | bg; 193 rp[1] = (rp[1] & rmask) | width; 194 DELTA(rp, rs, int32_t *); 195 } 196 } else { 197 width = 32 - col; 198 199 /* NOT fontbits if bg is white */ 200 if (bg) { 201 while (height--) { 202 fb = ~(fr[3] | (fr[2] << 8) | 203 (fr[1] << 16) | (fr[0] << 24)); 204 205 rp[0] = (rp[0] & lmask) 206 | MBE((u_int)fb >> col); 207 208 rp[1] = (rp[1] & rmask) 209 | (MBE((u_int)fb << width) & ~rmask); 210 211 fr += fs; 212 DELTA(rp, rs, int32_t *); 213 } 214 } else { 215 while (height--) { 216 fb = (fr[3] | (fr[2] << 8) | 217 (fr[1] << 16) | (fr[0] << 24)); 218 219 rp[0] = (rp[0] & lmask) 220 | MBE(fb >> col); 221 222 rp[1] = (rp[1] & rmask) 223 | (MBE(fb << width) & ~rmask); 224 225 fr += fs; 226 DELTA(rp, rs, int32_t *); 227 } 228 } 229 } 230 231 /* Do underline */ 232 if ((attr & 1) != 0) { 233 DELTA(rp, -(ri->ri_stride << 1), int32_t *); 234 rp[0] = (rp[0] & lmask) | (fg & ~lmask); 235 rp[1] = (rp[1] & rmask) | (fg & ~rmask); 236 } 237 } 238 } 239 240 #ifndef RASOPS_SMALL 241 /* 242 * Paint a single character. This is for 8-pixel wide fonts. 243 */ 244 static void 245 rasops1_putchar8(cookie, row, col, uc, attr) 246 void *cookie; 247 int row, col; 248 u_int uc; 249 long attr; 250 { 251 int height, fs, rs, bg, fg; 252 struct rasops_info *ri; 253 u_char *fr, *rp; 254 255 ri = (struct rasops_info *)cookie; 256 257 #ifdef RASOPS_CLIPPING 258 /* Catches 'row < 0' case too */ 259 if ((unsigned)row >= (unsigned)ri->ri_rows) 260 return; 261 262 if ((unsigned)col >= (unsigned)ri->ri_cols) 263 return; 264 #endif 265 266 rp = ri->ri_bits + row * ri->ri_yscale + col * ri->ri_xscale; 267 height = ri->ri_font->fontheight; 268 rs = ri->ri_stride; 269 270 bg = (attr & 0x000f0000) ? ri->ri_devcmap[1] : ri->ri_devcmap[0]; 271 fg = (attr & 0x0f000000) ? ri->ri_devcmap[1] : ri->ri_devcmap[0]; 272 273 /* If fg and bg match this becomes a space character */ 274 if (fg == bg || uc == ' ') { 275 while (height--) { 276 *rp = bg; 277 rp += rs; 278 } 279 } else { 280 uc -= ri->ri_font->firstchar; 281 fr = (u_char *)ri->ri_font->data + uc * ri->ri_fontscale; 282 fs = ri->ri_font->stride; 283 284 /* NOT fontbits if bg is white */ 285 if (bg) { 286 while (height--) { 287 *rp = ~*fr; 288 fr += fs; 289 rp += rs; 290 } 291 } else { 292 while (height--) { 293 *rp = *fr; 294 fr += fs; 295 rp += rs; 296 } 297 } 298 299 } 300 301 /* Do underline */ 302 if ((attr & 1) != 0) 303 rp[-(ri->ri_stride << 1)] = fg; 304 } 305 306 /* 307 * Paint a single character. This is for 16-pixel wide fonts. 308 */ 309 static void 310 rasops1_putchar16(cookie, row, col, uc, attr) 311 void *cookie; 312 int row, col; 313 u_int uc; 314 long attr; 315 { 316 int height, fs, rs, bg, fg; 317 struct rasops_info *ri; 318 u_char *fr, *rp; 319 320 ri = (struct rasops_info *)cookie; 321 322 #ifdef RASOPS_CLIPPING 323 /* Catches 'row < 0' case too */ 324 if ((unsigned)row >= (unsigned)ri->ri_rows) 325 return; 326 327 if ((unsigned)col >= (unsigned)ri->ri_cols) 328 return; 329 #endif 330 331 rp = ri->ri_bits + row * ri->ri_yscale + col * ri->ri_xscale; 332 height = ri->ri_font->fontheight; 333 rs = ri->ri_stride; 334 335 bg = (attr & 0x000f0000) ? ri->ri_devcmap[1] : ri->ri_devcmap[0]; 336 fg = (attr & 0x0f000000) ? ri->ri_devcmap[1] : ri->ri_devcmap[0]; 337 338 /* If fg and bg match this becomes a space character */ 339 if (fg == bg || uc == ' ') { 340 while (height--) { 341 *(int16_t *)rp = bg; 342 rp += rs; 343 } 344 } else { 345 uc -= ri->ri_font->firstchar; 346 fr = (u_char *)ri->ri_font->data + uc * ri->ri_fontscale; 347 fs = ri->ri_font->stride; 348 349 /* NOT fontbits if bg is white */ 350 if (bg) { 351 while (height--) { 352 rp[0] = ~fr[0]; 353 rp[1] = ~fr[1]; 354 fr += fs; 355 rp += rs; 356 } 357 } else { 358 while (height--) { 359 rp[0] = fr[0]; 360 rp[1] = fr[1]; 361 fr += fs; 362 rp += rs; 363 } 364 } 365 } 366 367 /* Do underline */ 368 if ((attr & 1) != 0) 369 *(int16_t *)(rp - (ri->ri_stride << 1)) = fg; 370 } 371 #endif /* !RASOPS_SMALL */ 372 373 /* 374 * Grab routines common to depths where (bpp < 8) 375 */ 376 #define NAME(ident) rasops1_##ident 377 #define PIXEL_SHIFT 0 378 379 #include <dev/rasops/rasops_bitops.h> 380
Indexes created Tue Sep 23 22:09:46 GMT 2025