rasops1.c revision 1.36
1 /* $NetBSD: rasops1.c,v 1.36 2019/08/09 12:05:51 rin 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 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #include <sys/cdefs.h> 33 __KERNEL_RCSID(0, "$NetBSD: rasops1.c,v 1.36 2019/08/09 12:05:51 rin Exp $"); 34 35 #include "opt_rasops.h" 36 37 #include <sys/param.h> 38 #include <sys/systm.h> 39 #include <sys/time.h> 40 #include <machine/endian.h> 41 42 #include <dev/wscons/wsdisplayvar.h> 43 #include <dev/wscons/wsconsio.h> 44 45 #define _RASOPS_PRIVATE 46 #define RASOPS_DEPTH 1 47 #include <dev/rasops/rasops.h> 48 #include <dev/rasops/rasops_masks.h> 49 50 static void rasops1_copycols(void *, int, int, int, int); 51 static void rasops1_erasecols(void *, int, int, int, long); 52 static void rasops1_do_cursor(struct rasops_info *); 53 static void rasops1_putchar(void *, int, int col, u_int, long); 54 #ifndef RASOPS_SMALL 55 static void rasops1_putchar8(void *, int, int col, u_int, long); 56 static void rasops1_putchar16(void *, int, int col, u_int, long); 57 #endif 58 59 /* 60 * Initialize rasops_info struct for this colordepth. 61 */ 62 void 63 rasops1_init(struct rasops_info *ri) 64 { 65 66 if ((ri->ri_font->fontwidth & 7) != 0) { 67 ri->ri_ops.erasecols = rasops1_erasecols; 68 ri->ri_ops.copycols = rasops1_copycols; 69 ri->ri_do_cursor = rasops1_do_cursor; 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 87 /* 88 * Paint a single character. This is the generic version, this is ugly. 89 */ 90 static void 91 rasops1_putchar(void *cookie, int row, int col, u_int uc, long attr) 92 { 93 struct rasops_info *ri = (struct rasops_info *)cookie; 94 struct wsdisplay_font *font = PICK_FONT(ri, uc); 95 uint32_t fs, rs, fb, bg, fg, lmask, rmask; 96 uint32_t height, width; 97 uint32_t *rp, *hp, tmp, tmp0, tmp1; 98 uint8_t *fr; 99 bool space; 100 101 hp = NULL; /* XXX GCC */ 102 103 if (__predict_false(!CHAR_IN_FONT(uc, font))) 104 return; 105 106 #ifdef RASOPS_CLIPPING 107 /* Catches 'row < 0' case too */ 108 if ((unsigned)row >= (unsigned)ri->ri_rows) 109 return; 110 111 if ((unsigned)col >= (unsigned)ri->ri_cols) 112 return; 113 #endif 114 115 col *= ri->ri_font->fontwidth; 116 rp = (uint32_t *)(ri->ri_bits + row * ri->ri_yscale + 117 ((col >> 3) & ~3)); 118 if (ri->ri_hwbits) 119 hp = (uint32_t *)(ri->ri_hwbits + row * ri->ri_yscale + 120 ((col >> 3) & ~3)); 121 height = font->fontheight; 122 width = font->fontwidth; 123 col &= 31; 124 rs = ri->ri_stride; 125 126 bg = (attr & 0x000f0000) ? ri->ri_devcmap[1] : ri->ri_devcmap[0]; 127 fg = (attr & 0x0f000000) ? ri->ri_devcmap[1] : ri->ri_devcmap[0]; 128 129 /* If fg and bg match this becomes a space character */ 130 if (uc == ' ' || fg == bg) { 131 space = true; 132 fr = NULL; /* XXX GCC */ 133 fs = 0; /* XXX GCC */ 134 } else { 135 space = false; 136 fr = FONT_GLYPH(uc, font, ri); 137 fs = font->stride; 138 } 139 140 if (col + width <= 32) { 141 /* Single word, only one mask */ 142 143 rmask = rasops_pmask[col][width & 31]; 144 lmask = ~rmask; 145 146 if (space) { 147 bg &= rmask; 148 while (height--) { 149 tmp = (*rp & lmask) | bg; 150 *rp = tmp; 151 DELTA(rp, rs, uint32_t *); 152 if (ri->ri_hwbits) { 153 *hp = tmp; 154 DELTA(hp, rs, uint32_t *); 155 } 156 } 157 } else { 158 while (height--) { 159 tmp = *rp & lmask; 160 fb = be32uatoh(fr); 161 fr += fs; 162 if (bg) 163 fb = ~fb; 164 tmp |= (MBE(fb >> col) & rmask); 165 *rp = tmp; 166 DELTA(rp, rs, uint32_t *); 167 if (ri->ri_hwbits) { 168 *hp = tmp; 169 DELTA(hp, rs, uint32_t *); 170 } 171 } 172 } 173 174 /* Do underline */ 175 if ((attr & WSATTR_UNDERLINE) != 0) { 176 DELTA(rp, - ri->ri_stride * ri->ri_ul.off, uint32_t *); 177 if (ri->ri_hwbits) 178 DELTA(hp, - ri->ri_stride * ri->ri_ul.off, 179 uint32_t *); 180 for (height = ri->ri_ul.height; height; height--) { 181 DELTA(rp, - ri->ri_stride, uint32_t *); 182 tmp = (*rp & lmask) | (fg & rmask); 183 *rp = tmp; 184 if (ri->ri_hwbits) { 185 DELTA(hp, - ri->ri_stride, uint32_t *); 186 *hp = tmp; 187 } 188 } 189 } 190 } else { 191 /* Word boundary, two masks needed */ 192 193 lmask = ~rasops_lmask[col]; 194 rmask = ~rasops_rmask[(col + width) & 31]; 195 196 if (space) { 197 width = bg & ~rmask; 198 bg = bg & ~lmask; 199 while (height--) { 200 tmp0 = (rp[0] & lmask) | bg; 201 tmp1 = (rp[1] & rmask) | width; 202 rp[0] = tmp0; 203 rp[1] = tmp1; 204 DELTA(rp, rs, uint32_t *); 205 if (ri->ri_hwbits) { 206 hp[0] = tmp0; 207 hp[1] = tmp1; 208 DELTA(hp, rs, uint32_t *); 209 } 210 } 211 } else { 212 width = 32 - col; 213 while (height--) { 214 tmp0 = rp[0] & lmask; 215 tmp1 = rp[1] & rmask; 216 fb = be32uatoh(fr); 217 fr += fs; 218 if (bg) 219 fb = ~fb; 220 tmp0 |= MBE(fb >> col); 221 tmp1 |= (MBE(fb << width) & ~rmask); 222 rp[0] = tmp0; 223 rp[1] = tmp1; 224 DELTA(rp, rs, uint32_t *); 225 if (ri->ri_hwbits) { 226 hp[0] = tmp0; 227 hp[1] = tmp1; 228 DELTA(hp, rs, uint32_t *); 229 } 230 } 231 } 232 233 /* Do underline */ 234 if ((attr & WSATTR_UNDERLINE) != 0) { 235 DELTA(rp, - ri->ri_stride * ri->ri_ul.off, uint32_t *); 236 if (ri->ri_hwbits) 237 DELTA(hp, - ri->ri_stride * ri->ri_ul.off, 238 uint32_t *); 239 for (height = ri->ri_ul.height; height; height--) { 240 DELTA(rp, - ri->ri_stride, uint32_t *); 241 tmp0 = (rp[0] & lmask) | (fg & ~lmask); 242 tmp1 = (rp[1] & rmask) | (fg & ~rmask); 243 rp[0] = tmp0; 244 rp[1] = tmp1; 245 if (ri->ri_hwbits) { 246 DELTA(hp, - ri->ri_stride, uint32_t *); 247 hp[0] = tmp0; 248 hp[1] = tmp1; 249 } 250 } 251 } 252 } 253 } 254 255 #ifndef RASOPS_SMALL 256 257 #define RASOPS_WIDTH 8 258 #include "rasops1_putchar_width.h" 259 #undef RASOPS_WIDTH 260 261 #define RASOPS_WIDTH 16 262 #include "rasops1_putchar_width.h" 263 #undef RASOPS_WIDTH 264 265 #endif /* !RASOPS_SMALL */ 266 267 /* 268 * Grab routines common to depths where (bpp < 8) 269 */ 270 #include <dev/rasops/rasops_bitops.h> 271
Indexes created Thu Sep 25 16:09:42 GMT 2025