1 /* $NetBSD: rasops32.c,v 1.29 2013/09/15 09:39:47 martin 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: rasops32.c,v 1.29 2013/09/15 09:39:47 martin Exp $"); 34 35 #include "opt_rasops.h" 36 37 #include <sys/param.h> 38 #include <sys/systm.h> 39 #include <sys/time.h> 40 41 #include <dev/wscons/wsdisplayvar.h> 42 #include <dev/wscons/wsconsio.h> 43 #include <dev/rasops/rasops.h> 44 45 static void rasops32_putchar(void *, int, int, u_int, long attr); 46 static void rasops32_putchar_aa(void *, int, int, u_int, long attr); 47 48 /* 49 * Initialize a 'rasops_info' descriptor for this depth. 50 */ 51 void 52 rasops32_init(struct rasops_info *ri) 53 { 54 55 if (ri->ri_rnum == 0) { 56 ri->ri_rnum = 8; 57 ri->ri_rpos = 0; 58 ri->ri_gnum = 8; 59 ri->ri_gpos = 8; 60 ri->ri_bnum = 8; 61 ri->ri_bpos = 16; 62 } 63 64 if (FONT_IS_ALPHA(ri->ri_font)) { 65 ri->ri_ops.putchar = rasops32_putchar_aa; 66 } else 67 ri->ri_ops.putchar = rasops32_putchar; 68 } 69 70 /* 71 * Paint a single character. 72 */ 73 74 static void 75 rasops32_putchar(void *cookie, int row, int col, u_int uc, long attr) 76 { 77 int width, height, cnt, fs, fb, clr[2]; 78 struct rasops_info *ri = (struct rasops_info *)cookie; 79 struct wsdisplay_font *font = PICK_FONT(ri, uc); 80 int32_t *dp, *rp, *hp, *hrp; 81 u_char *fr; 82 83 hp = hrp = NULL; 84 85 #ifdef RASOPS_CLIPPING 86 /* Catches 'row < 0' case too */ 87 if ((unsigned)row >= (unsigned)ri->ri_rows) 88 return; 89 90 if ((unsigned)col >= (unsigned)ri->ri_cols) 91 return; 92 #endif 93 94 /* check if character fits into font limits */ 95 if (!CHAR_IN_FONT(uc, font)) 96 return; 97 98 rp = (int32_t *)(ri->ri_bits + row*ri->ri_yscale + col*ri->ri_xscale); 99 if (ri->ri_hwbits) 100 hrp = (int32_t *)(ri->ri_hwbits + row*ri->ri_yscale + 101 col*ri->ri_xscale); 102 103 height = font->fontheight; 104 width = font->fontwidth; 105 106 clr[0] = ri->ri_devcmap[(attr >> 16) & 0xf]; 107 clr[1] = ri->ri_devcmap[(attr >> 24) & 0xf]; 108 109 if (uc == ' ') { 110 while (height--) { 111 dp = rp; 112 DELTA(rp, ri->ri_stride, int32_t *); 113 if (ri->ri_hwbits) { 114 hp = hrp; 115 DELTA(hrp, ri->ri_stride, int32_t *); 116 } 117 118 for (cnt = width; cnt; cnt--) { 119 *dp++ = clr[0]; 120 if (ri->ri_hwbits) 121 *hp++ = clr[0]; 122 } 123 } 124 } else { 125 fr = WSFONT_GLYPH(uc, font); 126 fs = font->stride; 127 128 while (height--) { 129 dp = rp; 130 fb = fr[3] | (fr[2] << 8) | (fr[1] << 16) | 131 (fr[0] << 24); 132 fr += fs; 133 DELTA(rp, ri->ri_stride, int32_t *); 134 if (ri->ri_hwbits) { 135 hp = hrp; 136 DELTA(hrp, ri->ri_stride, int32_t *); 137 } 138 139 for (cnt = width; cnt; cnt--) { 140 *dp++ = clr[(fb >> 31) & 1]; 141 if (ri->ri_hwbits) 142 *hp++ = clr[(fb >> 31) & 1]; 143 fb <<= 1; 144 } 145 } 146 } 147 148 /* Do underline */ 149 if ((attr & 1) != 0) { 150 DELTA(rp, -(ri->ri_stride << 1), int32_t *); 151 if (ri->ri_hwbits) 152 DELTA(hrp, -(ri->ri_stride << 1), int32_t *); 153 154 while (width--) { 155 *rp++ = clr[1]; 156 if (ri->ri_hwbits) 157 *hrp++ = clr[1]; 158 } 159 } 160 } 161 162 static void 163 rasops32_putchar_aa(void *cookie, int row, int col, u_int uc, long attr) 164 { 165 int width, height, cnt, clr[2]; 166 struct rasops_info *ri = (struct rasops_info *)cookie; 167 struct wsdisplay_font *font = PICK_FONT(ri, uc); 168 int32_t *dp, *rp; 169 uint8_t *rrp; 170 u_char *fr; 171 uint32_t buffer[64]; /* XXX */ 172 int x, y, r, g, b, aval; 173 int r1, g1, b1, r0, g0, b0; 174 175 #ifdef RASOPS_CLIPPING 176 /* Catches 'row < 0' case too */ 177 if ((unsigned)row >= (unsigned)ri->ri_rows) 178 return; 179 180 if ((unsigned)col >= (unsigned)ri->ri_cols) 181 return; 182 #endif 183 184 /* check if character fits into font limits */ 185 if (!CHAR_IN_FONT(uc, font)) 186 return; 187 188 rrp = (ri->ri_bits + row*ri->ri_yscale + col*ri->ri_xscale); 189 rp = (int32_t *)rrp; 190 191 height = font->fontheight; 192 width = font->fontwidth; 193 194 clr[0] = ri->ri_devcmap[(attr >> 16) & 0xf]; 195 clr[1] = ri->ri_devcmap[(attr >> 24) & 0xf]; 196 197 if (uc == ' ') { 198 for (cnt = 0; cnt < width; cnt++) 199 buffer[cnt] = clr[0]; 200 while (height--) { 201 dp = rp; 202 DELTA(rp, ri->ri_stride, int32_t *); 203 memcpy(dp, buffer, width << 2); 204 } 205 } else { 206 fr = WSFONT_GLYPH(uc, font); 207 208 r0 = (clr[0] >> 16) & 0xff; 209 r1 = (clr[1] >> 16) & 0xff; 210 g0 = (clr[0] >> 8) & 0xff; 211 g1 = (clr[1] >> 8) & 0xff; 212 b0 = clr[0] & 0xff; 213 b1 = clr[1] & 0xff; 214 215 for (y = 0; y < height; y++) { 216 dp = (uint32_t *)(rrp + ri->ri_stride * y); 217 for (x = 0; x < width; x++) { 218 aval = *fr; 219 if (aval == 0) { 220 buffer[x] = clr[0]; 221 } else if (aval == 255) { 222 buffer[x] = clr[1]; 223 } else { 224 r = aval * r1 + (255 - aval) * r0; 225 g = aval * g1 + (255 - aval) * g0; 226 b = aval * b1 + (255 - aval) * b0; 227 buffer[x] = (r & 0xff00) << 8 | 228 (g & 0xff00) | 229 (b & 0xff00) >> 8; 230 } 231 fr++; 232 } 233 memcpy(dp, buffer, width << 2); 234 } 235 } 236 237 /* Do underline */ 238 if ((attr & 1) != 0) { 239 rp = (uint32_t *)rrp; 240 DELTA(rp, (ri->ri_stride * (height - 2)), int32_t *); 241 while (width--) 242 *rp++ = clr[1]; 243 } 244 } 245