rasops_putchar.h revision 1.7
1 /* $NetBSD: rasops_putchar.h,v 1.7 2019/08/09 12:05:51 rin Exp $ */ 2 3 /* NetBSD: rasops8.c,v 1.41 2019/07/25 03:02:44 rin Exp */ 4 /*- 5 * Copyright (c) 1999 The NetBSD Foundation, Inc. 6 * All rights reserved. 7 * 8 * This code is derived from software contributed to The NetBSD Foundation 9 * by Andrew Doran. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 22 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 23 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 30 * POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33 #if RASOPS_DEPTH != 8 && RASOPS_DEPTH != 15 && RASOPS_DEPTH != 24 && \ 34 RASOPS_DEPTH != 32 35 #error "Depth not supported" 36 #endif 37 38 #if RASOPS_DEPTH == 8 39 #define COLOR_TYPE uint8_t 40 #elif RASOPS_DEPTH == 15 41 #define COLOR_TYPE uint16_t 42 #else 43 #define COLOR_TYPE uint32_t 44 #endif 45 46 #if RASOPS_DEPTH != 24 47 #define PIXEL_TYPE COLOR_TYPE 48 #define PIXEL_BYTES sizeof(PIXEL_TYPE) 49 #define SET_PIXEL(p, index) *(p)++ = clr[index] 50 #define SET_RGB(p, r, g, b) \ 51 *(p)++ = (((r) >> (8 - ri->ri_rnum)) << ri->ri_rpos) | \ 52 (((g) >> (8 - ri->ri_gnum)) << ri->ri_gpos) | \ 53 (((b) >> (8 - ri->ri_bnum)) << ri->ri_bpos) 54 #endif 55 56 #if RASOPS_DEPTH == 24 57 #define PIXEL_TYPE uint8_t 58 #define PIXEL_BYTES 3 59 #define SET_PIXEL(p, index) \ 60 do { \ 61 COLOR_TYPE c = clr[index]; \ 62 *(p)++ = c >> 16; \ 63 *(p)++ = c >> 8; \ 64 *(p)++ = c; \ 65 } while (0 /* CONSTCOND */) 66 #define SET_RGB(p, r, g, b) \ 67 do { \ 68 (p)[R_OFF] = (r); \ 69 (p)[G_OFF] = (g); \ 70 (p)[B_OFF] = (b); \ 71 (p) += 3; \ 72 } while (0 /* CONSTCOND */) 73 #endif 74 75 #define AV(p, w) (((w) * (p)[1] + (0xff - (w)) * (p)[0]) >> 8) 76 77 #if BYTE_ORDER == LITTLE_ENDIAN 78 #define R_OFF (ri->ri_rpos / 8) 79 #define G_OFF (ri->ri_gpos / 8) 80 #define B_OFF (ri->ri_bpos / 8) 81 #else /* BIG_ENDIAN XXX not tested */ 82 #define R_OFF (2 - ri->ri_rpos / 8) 83 #define G_OFF (2 - ri->ri_gpos / 8) 84 #define B_OFF (2 - ri->ri_bpos / 8) 85 #endif 86 87 #define NAME(depth) NAME1(depth) 88 #ifndef RASOPS_AA 89 #define NAME1(depth) rasops ## depth ## _putchar 90 #else 91 #define NAME1(depth) rasops ## depth ## _putchar_aa 92 #endif 93 94 /* 95 * Put a single character. 96 */ 97 static void 98 NAME(RASOPS_DEPTH)(void *cookie, int row, int col, u_int uc, long attr) 99 { 100 struct rasops_info *ri = (struct rasops_info *)cookie; 101 struct wsdisplay_font *font = PICK_FONT(ri, uc); 102 int height, width, cnt; 103 COLOR_TYPE clr[2]; 104 PIXEL_TYPE *dp, *rp, *hp; 105 uint8_t *fr; 106 107 hp = NULL; /* XXX GCC */ 108 109 if (__predict_false(!CHAR_IN_FONT(uc, font))) 110 return; 111 112 #ifdef RASOPS_CLIPPING 113 /* Catches 'row < 0' case too */ 114 if ((unsigned)row >= (unsigned)ri->ri_rows) 115 return; 116 117 if ((unsigned)col >= (unsigned)ri->ri_cols) 118 return; 119 #endif 120 121 rp = (PIXEL_TYPE *)(ri->ri_bits + row * ri->ri_yscale + 122 col * ri->ri_xscale); 123 if (ri->ri_hwbits) 124 hp = (PIXEL_TYPE *)(ri->ri_hwbits + row * ri->ri_yscale + 125 col * ri->ri_xscale); 126 127 height = font->fontheight; 128 width = font->fontwidth; 129 130 clr[0] = (COLOR_TYPE)ri->ri_devcmap[((uint32_t)attr >> 16) & 0xf]; 131 clr[1] = (COLOR_TYPE)ri->ri_devcmap[((uint32_t)attr >> 24) & 0xf]; 132 133 if (uc == ' ') { 134 while (height--) { 135 dp = rp; 136 for (cnt = width; cnt; cnt--) 137 SET_PIXEL(dp, 0); 138 if (ri->ri_hwbits) { 139 uint16_t bytes = width * PIXEL_BYTES; 140 /* XXX GCC */ 141 memcpy(hp, rp, bytes); 142 DELTA(hp, ri->ri_stride, PIXEL_TYPE *); 143 } 144 DELTA(rp, ri->ri_stride, PIXEL_TYPE *); 145 } 146 } else { 147 fr = FONT_GLYPH(uc, font, ri); 148 149 #ifdef RASOPS_AA 150 int off[2]; 151 uint8_t r[2], g[2], b[2]; 152 153 /* 154 * This is independent to positions/lengths of RGB in pixel. 155 */ 156 off[0] = (((uint32_t)attr >> 16) & 0xf) * 3; 157 off[1] = (((uint32_t)attr >> 24) & 0xf) * 3; 158 159 r[0] = rasops_cmap[off[0]]; 160 r[1] = rasops_cmap[off[1]]; 161 g[0] = rasops_cmap[off[0] + 1]; 162 g[1] = rasops_cmap[off[1] + 1]; 163 b[0] = rasops_cmap[off[0] + 2]; 164 b[1] = rasops_cmap[off[1] + 2]; 165 #endif 166 167 while (height--) { 168 dp = rp; 169 170 #ifndef RASOPS_AA 171 uint32_t fb = be32uatoh(fr); 172 fr += ri->ri_font->stride; 173 #endif 174 175 for (cnt = width; cnt; cnt--) 176 #ifndef RASOPS_AA 177 { 178 SET_PIXEL(dp, (fb >> 31) & 1); 179 fb <<= 1; 180 } 181 #else 182 { 183 int w = *fr++; 184 if (w == 0xff) 185 SET_PIXEL(dp, 1); 186 else if (w == 0) 187 SET_PIXEL(dp, 0); 188 else 189 SET_RGB(dp, 190 AV(r, w), AV(g, w), AV(b, w)); 191 } 192 #endif 193 if (ri->ri_hwbits) { 194 uint16_t bytes = width * PIXEL_BYTES; 195 /* XXX GCC */ 196 memcpy(hp, rp, bytes); 197 DELTA(hp, ri->ri_stride, PIXEL_TYPE *); 198 } 199 DELTA(rp, ri->ri_stride, PIXEL_TYPE *); 200 } 201 } 202 203 /* Do underline */ 204 if ((attr & WSATTR_UNDERLINE) != 0) { 205 DELTA(rp, - ri->ri_stride * ri->ri_ul.off, PIXEL_TYPE *); 206 if (ri->ri_hwbits) 207 DELTA(hp, - ri->ri_stride * ri->ri_ul.off, 208 PIXEL_TYPE *); 209 for (height = ri->ri_ul.height; height; height--) { 210 DELTA(rp, - ri->ri_stride, PIXEL_TYPE *); 211 dp = rp; 212 for (cnt = width; cnt; cnt--) 213 SET_PIXEL(dp, 1); 214 if (ri->ri_hwbits) { 215 DELTA(hp, - ri->ri_stride, PIXEL_TYPE *); 216 uint16_t bytes = width * PIXEL_BYTES; 217 /* XXX GCC */ 218 memcpy(hp, rp, bytes); 219 } 220 } 221 } 222 } 223 224 #undef COLOR_TYPE 225 226 #undef PIXEL_TYPE 227 #undef PIXEL_BYTES 228 #undef SET_PIXEL 229 #undef SET_RGB 230 231 #undef AV 232 233 #undef R_OFF 234 #undef G_OFF 235 #undef B_OFF 236 237 #undef NAME 238 #undef NAME1 239
Indexes created Thu Oct 02 01:09:59 GMT 2025