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rasops8.c revision 1.49
      1  1.49       rin /* 	$NetBSD: rasops8.c,v 1.49 2019/08/07 12:33:48 rin Exp $	*/
      2   1.1        ad 
      3   1.4        ad /*-
      4   1.4        ad  * Copyright (c) 1999 The NetBSD Foundation, Inc.
      5   1.1        ad  * All rights reserved.
      6   1.1        ad  *
      7   1.4        ad  * This code is derived from software contributed to The NetBSD Foundation
      8   1.9        ad  * by Andrew Doran.
      9   1.4        ad  *
     10   1.1        ad  * Redistribution and use in source and binary forms, with or without
     11   1.1        ad  * modification, are permitted provided that the following conditions
     12   1.1        ad  * are met:
     13   1.1        ad  * 1. Redistributions of source code must retain the above copyright
     14   1.1        ad  *    notice, this list of conditions and the following disclaimer.
     15   1.1        ad  * 2. Redistributions in binary form must reproduce the above copyright
     16   1.1        ad  *    notice, this list of conditions and the following disclaimer in the
     17   1.1        ad  *    documentation and/or other materials provided with the distribution.
     18   1.1        ad  *
     19   1.4        ad  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20   1.4        ad  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21   1.4        ad  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22   1.4        ad  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23   1.4        ad  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24   1.4        ad  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25   1.4        ad  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26   1.4        ad  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27   1.4        ad  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28   1.4        ad  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29   1.4        ad  * POSSIBILITY OF SUCH DAMAGE.
     30   1.1        ad  */
     31   1.2        ad 
     32  1.12     lukem #include <sys/cdefs.h>
     33  1.49       rin __KERNEL_RCSID(0, "$NetBSD: rasops8.c,v 1.49 2019/08/07 12:33:48 rin Exp $");
     34  1.12     lukem 
     35   1.1        ad #include "opt_rasops.h"
     36   1.1        ad 
     37   1.1        ad #include <sys/param.h>
     38   1.1        ad #include <sys/systm.h>
     39   1.1        ad #include <sys/time.h>
     40   1.1        ad 
     41   1.1        ad #include <dev/wscons/wsdisplayvar.h>
     42   1.1        ad #include <dev/wscons/wsconsio.h>
     43  1.45       rin 
     44  1.45       rin #define	_RASOPS_PRIVATE
     45  1.47       rin #define	RASOPS_DEPTH	8
     46   1.1        ad #include <dev/rasops/rasops.h>
     47   1.1        ad 
     48  1.43       rin static void 	rasops8_putchar(void *, int, int, u_int, long);
     49  1.43       rin static void 	rasops8_putchar_aa(void *, int, int, u_int, long);
     50   1.7        ad #ifndef RASOPS_SMALL
     51  1.43       rin static void 	rasops8_putchar8(void *, int, int, u_int, long);
     52  1.43       rin static void 	rasops8_putchar12(void *, int, int, u_int, long);
     53  1.43       rin static void 	rasops8_putchar16(void *, int, int, u_int, long);
     54  1.18     perry static void	rasops8_makestamp(struct rasops_info *ri, long);
     55  1.10     bjh21 #endif
     56   1.1        ad 
     57  1.48       rin #ifndef RASOPS_SMALL
     58  1.48       rin /* 4x1 stamp for optimized character blitting */
     59  1.48       rin static uint32_t			stamp[16];
     60  1.48       rin static long			stamp_attr;
     61  1.48       rin static struct rasops_info	*stamp_ri;
     62  1.48       rin 
     63   1.1        ad /*
     64   1.1        ad  * offset = STAMP_SHIFT(fontbits, nibble #) & STAMP_MASK
     65   1.1        ad  * destination = STAMP_READ(offset)
     66   1.1        ad  */
     67  1.43       rin #define	STAMP_SHIFT(fb, n)	((n) ? (fb) >> 2 : (fb) << 2)
     68  1.43       rin #define	STAMP_MASK		(0xf << 2)
     69  1.43       rin #define	STAMP_READ(o)		(*(uint32_t *)((uint8_t *)stamp + (o)))
     70  1.48       rin #endif
     71   1.1        ad 
     72   1.1        ad /*
     73  1.11       wiz  * Initialize a 'rasops_info' descriptor for this depth.
     74   1.1        ad  */
     75   1.1        ad void
     76  1.25       dsl rasops8_init(struct rasops_info *ri)
     77   1.1        ad {
     78   1.8        pk 
     79  1.43       rin 	if (ri->ri_flg & RI_8BIT_IS_RGB) {
     80  1.43       rin 		ri->ri_rnum = ri->ri_gnum = 3;
     81  1.43       rin 		ri->ri_bnum = 2;
     82  1.43       rin 
     83  1.43       rin 		ri->ri_rpos = 5;
     84  1.43       rin 		ri->ri_gpos = 2;
     85  1.43       rin 		ri->ri_bpos = 0;
     86  1.43       rin 	}
     87  1.43       rin 
     88  1.33    martin 	if (FONT_IS_ALPHA(ri->ri_font)) {
     89  1.30  macallan 		ri->ri_ops.putchar = rasops8_putchar_aa;
     90  1.43       rin 		return;
     91  1.43       rin 	}
     92  1.43       rin 
     93  1.43       rin 	switch (ri->ri_font->fontwidth) {
     94   1.7        ad #ifndef RASOPS_SMALL
     95  1.43       rin 	case 8:
     96  1.43       rin 		ri->ri_ops.putchar = rasops8_putchar8;
     97  1.43       rin 		break;
     98  1.43       rin 	case 12:
     99  1.43       rin 		ri->ri_ops.putchar = rasops8_putchar12;
    100  1.43       rin 		break;
    101  1.43       rin 	case 16:
    102  1.43       rin 		ri->ri_ops.putchar = rasops8_putchar16;
    103  1.43       rin 		break;
    104   1.7        ad #endif /* !RASOPS_SMALL */
    105  1.43       rin 	default:
    106  1.43       rin 		ri->ri_ops.putchar = rasops8_putchar;
    107  1.46       rin 		return;
    108  1.28  macallan 	}
    109  1.46       rin 
    110  1.46       rin #ifndef RASOPS_SMALL
    111  1.48       rin 	stamp_attr = 0;
    112  1.48       rin 	stamp_ri = NULL;
    113  1.46       rin #endif
    114   1.1        ad }
    115   1.1        ad 
    116  1.49       rin #undef	RASOPS_AA
    117  1.42       rin #include "rasops_putchar.h"
    118  1.49       rin 
    119  1.49       rin #define	RASOPS_AA
    120  1.49       rin #include "rasops_putchar.h"
    121  1.49       rin #undef	RASOPS_AA
    122  1.30  macallan 
    123   1.7        ad #ifndef RASOPS_SMALL
    124   1.1        ad /*
    125   1.1        ad  * Recompute the 4x1 blitting stamp.
    126   1.1        ad  */
    127   1.1        ad static void
    128  1.25       dsl rasops8_makestamp(struct rasops_info *ri, long attr)
    129   1.1        ad {
    130  1.37       rin 	uint32_t fg, bg;
    131   1.1        ad 	int i;
    132   1.5        ad 
    133  1.48       rin 	stamp_attr = attr;
    134  1.48       rin 	stamp_ri = ri;
    135  1.48       rin 
    136  1.43       rin 	fg = ri->ri_devcmap[((uint32_t)attr >> 24) & 0xf] & 0xff;
    137  1.43       rin 	bg = ri->ri_devcmap[((uint32_t)attr >> 16) & 0xf] & 0xff;
    138   1.8        pk 
    139   1.1        ad 	for (i = 0; i < 16; i++) {
    140  1.16       uwe #if BYTE_ORDER == BIG_ENDIAN
    141  1.16       uwe #define NEED_LITTLE_ENDIAN_STAMP RI_BSWAP
    142   1.1        ad #else
    143  1.16       uwe #define NEED_LITTLE_ENDIAN_STAMP 0
    144   1.1        ad #endif
    145  1.16       uwe 		if ((ri->ri_flg & RI_BSWAP) == NEED_LITTLE_ENDIAN_STAMP) {
    146  1.16       uwe 			/* little endian */
    147  1.43       rin 			stamp[i]  = (i & 8 ? fg : bg);
    148  1.43       rin 			stamp[i] |= (i & 4 ? fg : bg) << 8;
    149  1.43       rin 			stamp[i] |= (i & 2 ? fg : bg) << 16;
    150  1.43       rin 			stamp[i] |= (i & 1 ? fg : bg) << 24;
    151  1.16       uwe 		} else {
    152  1.16       uwe 			/* big endian */
    153  1.43       rin 			stamp[i]  = (i & 1 ? fg : bg);
    154  1.43       rin 			stamp[i] |= (i & 2 ? fg : bg) << 8;
    155  1.43       rin 			stamp[i] |= (i & 4 ? fg : bg) << 16;
    156  1.43       rin 			stamp[i] |= (i & 8 ? fg : bg) << 24;
    157  1.16       uwe 		}
    158   1.1        ad 	}
    159   1.1        ad }
    160   1.1        ad 
    161  1.42       rin #define	RASOPS_WIDTH	8
    162  1.42       rin #include "rasops_putchar_width.h"
    163  1.42       rin #undef	RASOPS_WIDTH
    164  1.42       rin 
    165  1.42       rin #define	RASOPS_WIDTH	12
    166  1.42       rin #include "rasops_putchar_width.h"
    167  1.42       rin #undef	RASOPS_WIDTH
    168  1.42       rin 
    169  1.42       rin #define	RASOPS_WIDTH	16
    170  1.42       rin #include "rasops_putchar_width.h"
    171  1.42       rin #undef	RASOPS_WIDTH
    172  1.17    petrov 
    173   1.1        ad #endif
    174