rasops1.c revision 1.29
1 /* $NetBSD: rasops1.c,v 1.29 2019/07/29 02:57:41 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 1.29 2019/07/29 02:57:41 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 #include <dev/rasops/rasops.h> 45 #include <dev/rasops/rasops_masks.h> 46 47 static void rasops1_copycols(void *, int, int, int, int); 48 static void rasops1_erasecols(void *, int, int, int, long); 49 static void rasops1_do_cursor(struct rasops_info *); 50 static void rasops1_putchar(void *, int, int col, u_int, long); 51 #ifndef RASOPS_SMALL 52 static void rasops1_putchar8(void *, int, int col, u_int, long); 53 static void rasops1_putchar16(void *, int, int col, u_int, long); 54 #endif 55 56 /* 57 * Initialize rasops_info struct for this colordepth. 58 */ 59 void 60 rasops1_init(struct rasops_info *ri) 61 { 62 63 if ((ri->ri_font->fontwidth & 7) != 0) { 64 ri->ri_ops.erasecols = rasops1_erasecols; 65 ri->ri_ops.copycols = rasops1_copycols; 66 ri->ri_do_cursor = rasops1_do_cursor; 67 } 68 69 switch (ri->ri_font->fontwidth) { 70 #ifndef RASOPS_SMALL 71 case 8: 72 ri->ri_ops.putchar = rasops1_putchar8; 73 break; 74 case 16: 75 ri->ri_ops.putchar = rasops1_putchar16; 76 break; 77 #endif 78 default: 79 ri->ri_ops.putchar = rasops1_putchar; 80 break; 81 } 82 } 83 84 /* 85 * Paint a single character. This is the generic version, this is ugly. 86 */ 87 static void 88 rasops1_putchar(void *cookie, int row, int col, u_int uc, long attr) 89 { 90 struct rasops_info *ri = (struct rasops_info *)cookie; 91 struct wsdisplay_font *font = PICK_FONT(ri, uc); 92 uint32_t fs, rs, fb, bg, fg, lmask, rmask; 93 uint32_t height, width; 94 uint32_t *rp, *hrp, tmp, tmp0, tmp1; 95 uint8_t *fr; 96 bool space; 97 98 hrp = NULL; /* XXX GCC */ 99 100 #ifdef RASOPS_CLIPPING 101 /* Catches 'row < 0' case too */ 102 if ((unsigned)row >= (unsigned)ri->ri_rows) 103 return; 104 105 if ((unsigned)col >= (unsigned)ri->ri_cols) 106 return; 107 #endif 108 109 col *= ri->ri_font->fontwidth; 110 rp = (uint32_t *)(ri->ri_bits + row * ri->ri_yscale + 111 ((col >> 3) & ~3)); 112 if (ri->ri_hwbits) 113 hrp = (uint32_t *)(ri->ri_hwbits + row * ri->ri_yscale + 114 ((col >> 3) & ~3)); 115 height = font->fontheight; 116 width = font->fontwidth; 117 col &= 31; 118 rs = ri->ri_stride; 119 120 bg = (attr & 0x000f0000) ? ri->ri_devcmap[1] : ri->ri_devcmap[0]; 121 fg = (attr & 0x0f000000) ? ri->ri_devcmap[1] : ri->ri_devcmap[0]; 122 123 /* If fg and bg match this becomes a space character */ 124 if (uc == ' ' || fg == bg) { 125 space = true; 126 fr = NULL; /* XXX GCC */ 127 fs = 0; /* XXX GCC */ 128 } else { 129 space = false; 130 fr = FONT_GLYPH(uc, font, ri); 131 fs = font->stride; 132 } 133 134 if (col + width <= 32) { 135 /* Single word, only one mask */ 136 137 rmask = rasops_pmask[col][width]; 138 lmask = ~rmask; 139 140 if (space) { 141 bg &= rmask; 142 while (height--) { 143 tmp = (*rp & lmask) | bg; 144 *rp = tmp; 145 DELTA(rp, rs, uint32_t *); 146 if (ri->ri_hwbits) { 147 *hrp = tmp; 148 DELTA(hrp, rs, uint32_t *); 149 } 150 } 151 } else { 152 while (height--) { 153 tmp = *rp & lmask; 154 fb = fr[3] | (fr[2] << 8) | 155 (fr[1] << 16) | (fr[0] << 24); 156 fr += fs; 157 if (bg) 158 fb = ~fb; 159 tmp |= (MBE(fb >> col) & rmask); 160 *rp = tmp; 161 DELTA(rp, rs, uint32_t *); 162 if (ri->ri_hwbits) { 163 *hrp = tmp; 164 DELTA(hrp, rs, uint32_t *); 165 } 166 } 167 } 168 169 /* Do underline */ 170 if ((attr & WSATTR_UNDERLINE) != 0) { 171 DELTA(rp, -(ri->ri_stride << 1), uint32_t *); 172 tmp = (*rp & lmask) | (fg & rmask); 173 *rp = tmp; 174 if (ri->ri_hwbits) { 175 DELTA(hrp, -(ri->ri_stride << 1), uint32_t *); 176 *hrp = tmp; 177 } 178 } 179 } else { 180 /* Word boundary, two masks needed */ 181 182 lmask = ~rasops_lmask[col]; 183 rmask = ~rasops_rmask[(col + width) & 31]; 184 185 if (space) { 186 width = bg & ~rmask; 187 bg = bg & ~lmask; 188 while (height--) { 189 tmp0 = (rp[0] & lmask) | bg; 190 tmp1 = (rp[1] & rmask) | width; 191 rp[0] = tmp0; 192 rp[1] = tmp1; 193 DELTA(rp, rs, uint32_t *); 194 if (ri->ri_hwbits) { 195 hrp[0] = tmp0; 196 hrp[1] = tmp1; 197 DELTA(hrp, rs, uint32_t *); 198 } 199 } 200 } else { 201 width = 32 - col; 202 while (height--) { 203 tmp0 = rp[0] & lmask; 204 tmp1 = rp[1] & rmask; 205 fb = fr[3] | (fr[2] << 8) | 206 (fr[1] << 16) | (fr[0] << 24); 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 hrp[0] = tmp0; 217 hrp[1] = tmp1; 218 DELTA(hrp, 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(hrp, -(ri->ri_stride << 1), uint32_t *); 232 hrp[0] = tmp0; 233 hrp[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 Tue Sep 23 02:09:52 GMT 2025