| 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 | |