rasops2.c revision 1.26
1/* $NetBSD: rasops2.c,v 1.26 2019/07/29 03:01:09 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: rasops2.c,v 1.26 2019/07/29 03:01:09 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 47static void rasops2_copycols(void *, int, int, int, int); 48static void rasops2_erasecols(void *, int, int, int, long); 49static void rasops2_do_cursor(struct rasops_info *); 50static void rasops2_putchar(void *, int, int col, u_int, long); 51#ifndef RASOPS_SMALL 52static void rasops2_putchar8(void *, int, int col, u_int, long); 53static void rasops2_putchar12(void *, int, int col, u_int, long); 54static void rasops2_putchar16(void *, int, int col, u_int, long); 55static void rasops2_makestamp(struct rasops_info *, long); 56 57/* 58 * 4x1 stamp for optimized character blitting 59 */ 60static uint8_t stamp[16]; 61static long stamp_attr; 62static int stamp_mutex; /* XXX see note in README */ 63#endif 64 65/* 66 * offset = STAMP_SHIFT(fontbits, nibble #) & STAMP_MASK 67 * destination = STAMP_READ(offset) 68 */ 69#define STAMP_SHIFT(fb, n) ((n) ? (fb) >> 4 : (fb)) 70#define STAMP_MASK 0xf 71#define STAMP_READ(o) stamp[o] 72 73/* 74 * Initialize rasops_info struct for this colordepth. 75 */ 76void 77rasops2_init(struct rasops_info *ri) 78{ 79 80 switch (ri->ri_font->fontwidth) { 81#ifndef RASOPS_SMALL 82 case 8: 83 ri->ri_ops.putchar = rasops2_putchar8; 84 break; 85 case 12: 86 ri->ri_ops.putchar = rasops2_putchar12; 87 break; 88 case 16: 89 ri->ri_ops.putchar = rasops2_putchar16; 90 break; 91#endif /* !RASOPS_SMALL */ 92 default: 93 panic("fontwidth not 8/12/16 or RASOPS_SMALL - fixme!"); 94 ri->ri_ops.putchar = rasops2_putchar; 95 break; 96 } 97 98 if ((ri->ri_font->fontwidth & 3) != 0) { 99 ri->ri_ops.erasecols = rasops2_erasecols; 100 ri->ri_ops.copycols = rasops2_copycols; 101 ri->ri_do_cursor = rasops2_do_cursor; 102 } 103} 104 105/* 106 * Put a single character. This is the generic version. 107 */ 108static void 109rasops2_putchar(void *cookie, int row, int col, u_int uc, long attr) 110{ 111 112 /* XXX punt */ 113} 114 115#ifndef RASOPS_SMALL 116/* 117 * Recompute the blitting stamp. 118 */ 119static void 120rasops2_makestamp(struct rasops_info *ri, long attr) 121{ 122 int i, fg, bg; 123 124 fg = ri->ri_devcmap[((uint32_t)attr >> 24) & 0xf] & 3; 125 bg = ri->ri_devcmap[((uint32_t)attr >> 16) & 0xf] & 3; 126 stamp_attr = attr; 127 128 for (i = 0; i < 16; i++) { 129#if BYTE_ORDER == BIG_ENDIAN 130#define NEED_LITTLE_ENDIAN_STAMP RI_BSWAP 131#else 132#define NEED_LITTLE_ENDIAN_STAMP 0 133#endif 134 if ((ri->ri_flg & RI_BSWAP) == NEED_LITTLE_ENDIAN_STAMP) { 135 /* littel endian */ 136 stamp[i] = (i & 8 ? fg : bg); 137 stamp[i] |= (i & 4 ? fg : bg) << 2; 138 stamp[i] |= (i & 2 ? fg : bg) << 4; 139 stamp[i] |= (i & 1 ? fg : bg) << 6; 140 } else { 141 /* big endian */ 142 stamp[i] = (i & 1 ? fg : bg); 143 stamp[i] |= (i & 2 ? fg : bg) << 2; 144 stamp[i] |= (i & 4 ? fg : bg) << 4; 145 stamp[i] |= (i & 8 ? fg : bg) << 6; 146 } 147 } 148} 149 150#define RASOPS_DEPTH 2 151 152#define RASOPS_WIDTH 8 153#include "rasops_putchar_width.h" 154#undef RASOPS_WIDTH 155 156#define RASOPS_WIDTH 12 157#include "rasops_putchar_width.h" 158#undef RASOPS_WIDTH 159 160#define RASOPS_WIDTH 16 161#include "rasops_putchar_width.h" 162#undef RASOPS_WIDTH 163 164#endif /* !RASOPS_SMALL */ 165 166/* 167 * Grab routines common to depths where (bpp < 8) 168 */ 169#define NAME(ident) rasops2_##ident 170#define PIXEL_SHIFT 1 171 172#include <dev/rasops/rasops_bitops.h> 173