rasops1.c revision 1.32
1 /* $NetBSD: rasops1.c,v 1.32 2019/07/31 00:14:25 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 1.32 2019/07/31 00:14:25 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 #include <dev/rasops/rasops.h> 47 #include <dev/rasops/rasops_masks.h> 48 49 static void rasops1_copycols(void *, int, int, int, int); 50 static void rasops1_erasecols(void *, int, int, int, long); 51 static void rasops1_do_cursor(struct rasops_info *); 52 static void rasops1_putchar(void *, int, int col, u_int, long); 53 #ifndef RASOPS_SMALL 54 static void rasops1_putchar8(void *, int, int col, u_int, long); 55 static void rasops1_putchar16(void *, int, int col, u_int, long); 56 #endif 57 58 /* 59 * Initialize rasops_info struct for this colordepth. 60 */ 61 void 62 rasops1_init(struct rasops_info *ri) 63 { 64 65 if ((ri->ri_font->fontwidth & 7) != 0) { 66 ri->ri_ops.erasecols = rasops1_erasecols; 67 ri->ri_ops.copycols = rasops1_copycols; 68 ri->ri_do_cursor = rasops1_do_cursor; 69 } 70 71 switch (ri->ri_font->fontwidth) { 72 #ifndef RASOPS_SMALL 73 case 8: 74 ri->ri_ops.putchar = rasops1_putchar8; 75 break; 76 case 16: 77 ri->ri_ops.putchar = rasops1_putchar16; 78 break; 79 #endif 80 default: 81 ri->ri_ops.putchar = rasops1_putchar; 82 break; 83 } 84 } 85 86 /* 87 * Paint a single character. This is the generic version, this is ugly. 88 */ 89 static void 90 rasops1_putchar(void *cookie, int row, int col, u_int uc, long attr) 91 { 92 struct rasops_info *ri = (struct rasops_info *)cookie; 93 struct wsdisplay_font *font = PICK_FONT(ri, uc); 94 uint32_t fs, rs, fb, bg, fg, lmask, rmask; 95 uint32_t height, width; 96 uint32_t *rp, *hp, tmp, tmp0, tmp1; 97 uint8_t *fr; 98 bool space; 99 100 hp = NULL; /* XXX GCC */ 101 102 #ifdef RASOPS_CLIPPING 103 /* Catches 'row < 0' case too */ 104 if ((unsigned)row >= (unsigned)ri->ri_rows) 105 return; 106 107 if ((unsigned)col >= (unsigned)ri->ri_cols) 108 return; 109 #endif 110 111 col *= ri->ri_font->fontwidth; 112 rp = (uint32_t *)(ri->ri_bits + row * ri->ri_yscale + 113 ((col >> 3) & ~3)); 114 if (ri->ri_hwbits) 115 hp = (uint32_t *)(ri->ri_hwbits + row * ri->ri_yscale + 116 ((col >> 3) & ~3)); 117 height = font->fontheight; 118 width = font->fontwidth; 119 col &= 31; 120 rs = ri->ri_stride; 121 122 bg = (attr & 0x000f0000) ? ri->ri_devcmap[1] : ri->ri_devcmap[0]; 123 fg = (attr & 0x0f000000) ? ri->ri_devcmap[1] : ri->ri_devcmap[0]; 124 125 /* If fg and bg match this becomes a space character */ 126 if (uc == ' ' || fg == bg) { 127 space = true; 128 fr = NULL; /* XXX GCC */ 129 fs = 0; /* XXX GCC */ 130 } else { 131 space = false; 132 fr = FONT_GLYPH(uc, font, ri); 133 fs = font->stride; 134 } 135 136 if (col + width <= 32) { 137 /* Single word, only one mask */ 138 139 rmask = rasops_pmask[col][width]; 140 lmask = ~rmask; 141 142 if (space) { 143 bg &= rmask; 144 while (height--) { 145 tmp = (*rp & lmask) | bg; 146 *rp = tmp; 147 DELTA(rp, rs, uint32_t *); 148 if (ri->ri_hwbits) { 149 *hp = tmp; 150 DELTA(hp, rs, uint32_t *); 151 } 152 } 153 } else { 154 while (height--) { 155 tmp = *rp & lmask; 156 fb = be32uatoh(fr); 157 fr += fs; 158 if (bg) 159 fb = ~fb; 160 tmp |= (MBE(fb >> col) & rmask); 161 *rp = tmp; 162 DELTA(rp, rs, uint32_t *); 163 if (ri->ri_hwbits) { 164 *hp = tmp; 165 DELTA(hp, rs, uint32_t *); 166 } 167 } 168 } 169 170 /* Do underline */ 171 if ((attr & WSATTR_UNDERLINE) != 0) { 172 DELTA(rp, -(ri->ri_stride << 1), uint32_t *); 173 tmp = (*rp & lmask) | (fg & rmask); 174 *rp = tmp; 175 if (ri->ri_hwbits) { 176 DELTA(hp, -(ri->ri_stride << 1), uint32_t *); 177 *hp = tmp; 178 } 179 } 180 } else { 181 /* Word boundary, two masks needed */ 182 183 lmask = ~rasops_lmask[col]; 184 rmask = ~rasops_rmask[(col + width) & 31]; 185 186 if (space) { 187 width = bg & ~rmask; 188 bg = bg & ~lmask; 189 while (height--) { 190 tmp0 = (rp[0] & lmask) | bg; 191 tmp1 = (rp[1] & rmask) | width; 192 rp[0] = tmp0; 193 rp[1] = tmp1; 194 DELTA(rp, rs, uint32_t *); 195 if (ri->ri_hwbits) { 196 hp[0] = tmp0; 197 hp[1] = tmp1; 198 DELTA(hp, rs, uint32_t *); 199 } 200 } 201 } else { 202 width = 32 - col; 203 while (height--) { 204 tmp0 = rp[0] & lmask; 205 tmp1 = rp[1] & rmask; 206 fb = be32uatoh(fr); 207 fr += fs; 208 if (bg) 209 fb = ~fb; 210 tmp0 |= MBE(fb >> col); 211 tmp1 |= (MBE(fb << width) & ~rmask); 212 rp[0] = tmp0; 213 rp[1] = tmp1; 214 DELTA(rp, rs, uint32_t *); 215 if (ri->ri_hwbits) { 216 hp[0] = tmp0; 217 hp[1] = tmp1; 218 DELTA(hp, rs, uint32_t *); 219 } 220 } 221 } 222 223 /* Do underline */ 224 if ((attr & WSATTR_UNDERLINE) != 0) { 225 DELTA(rp, -(ri->ri_stride << 1), uint32_t *); 226 tmp0 = (rp[0] & lmask) | (fg & ~lmask); 227 tmp1 = (rp[1] & rmask) | (fg & ~rmask); 228 rp[0] = tmp0; 229 rp[1] = tmp1; 230 if (ri->ri_hwbits) { 231 DELTA(hp, -(ri->ri_stride << 1), uint32_t *); 232 hp[0] = tmp0; 233 hp[1] = tmp1; 234 } 235 } 236 } 237 } 238 239 #ifndef RASOPS_SMALL 240 241 #define RASOPS_WIDTH 8 242 #include "rasops1_putchar_width.h" 243 #undef RASOPS_WIDTH 244 245 #define RASOPS_WIDTH 16 246 #include "rasops1_putchar_width.h" 247 #undef RASOPS_WIDTH 248 249 #endif /* !RASOPS_SMALL */ 250 251 /* 252 * Grab routines common to depths where (bpp < 8) 253 */ 254 #define NAME(ident) rasops1_##ident 255 #define PIXEL_SHIFT 0 256 257 #include <dev/rasops/rasops_bitops.h> 258
Indexes created Wed Sep 24 05:09:52 GMT 2025