/* $NetBSD: rasops32.c,v 1.39.2.1 2019/08/15 12:21:27 martin Exp $ */ /*- * Copyright (c) 1999 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Andrew Doran. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #include __KERNEL_RCSID(0, "$NetBSD: rasops32.c,v 1.39.2.1 2019/08/15 12:21:27 martin Exp $"); #ifdef _KERNEL_OPT #include "opt_rasops.h" #endif #include #include #include #define _RASOPS_PRIVATE #define RASOPS_DEPTH 32 #include static void rasops32_putchar(void *, int, int, u_int, long); static void rasops32_putchar_aa(void *, int, int, u_int, long); #ifndef RASOPS_SMALL static void rasops32_putchar8(void *, int, int, u_int, long); static void rasops32_putchar12(void *, int, int, u_int, long); static void rasops32_putchar16(void *, int, int, u_int, long); static void rasops32_makestamp(struct rasops_info *, long); #endif #ifndef RASOPS_SMALL /* stamp for optimized character blitting */ static uint32_t stamp[64]; static long stamp_attr; static struct rasops_info *stamp_ri; /* * offset = STAMP_SHIFT(fontbits, nibble #) & STAMP_MASK * destination uint32_t[0] = STAMP_READ(offset) * destination uint32_t[1] = STAMP_READ(offset + 4) * destination uint32_t[2] = STAMP_READ(offset + 8) * destination uint32_t[3] = STAMP_READ(offset + 12) */ #define STAMP_SHIFT(fb, n) ((n) ? (fb) : (fb) << 4) #define STAMP_MASK (0xf << 4) #define STAMP_READ(o) (*(uint32_t *)((uint8_t *)stamp + (o))) #endif /* * Initialize a 'rasops_info' descriptor for this depth. */ void rasops32_init(struct rasops_info *ri) { if (ri->ri_rnum == 0) { ri->ri_rnum = ri->ri_gnum = ri->ri_bnum = 8; ri->ri_rpos = 0; ri->ri_gpos = 8; ri->ri_bpos = 16; } if (FONT_IS_ALPHA(ri->ri_font)) { ri->ri_ops.putchar = rasops32_putchar_aa; return; } switch (ri->ri_font->fontwidth) { #ifndef RASOPS_SMALL case 8: ri->ri_ops.putchar = rasops32_putchar8; break; case 12: ri->ri_ops.putchar = rasops32_putchar12; break; case 16: ri->ri_ops.putchar = rasops32_putchar16; break; #endif default: ri->ri_ops.putchar = rasops32_putchar; return; } #ifndef RASOPS_SMALL stamp_attr = -1; stamp_ri = NULL; #endif } /* rasops32_putchar */ #undef RASOPS_AA #include /* rasops32_putchar_aa */ #define RASOPS_AA #include #undef RASOPS_AA #ifndef RASOPS_SMALL /* * Recompute the blitting stamp. */ static void rasops32_makestamp(struct rasops_info *ri, long attr) { uint32_t fg, bg; int i; stamp_attr = attr; stamp_ri = ri; bg = ATTR_BG(ri, attr); fg = ATTR_FG(ri, attr); for (i = 0; i < 64; i += 4) { stamp[i + 0] = i & 32 ? fg : bg; stamp[i + 1] = i & 16 ? fg : bg; stamp[i + 2] = i & 8 ? fg : bg; stamp[i + 3] = i & 4 ? fg : bg; } } /* * Width-optimized putchar functions */ #define RASOPS_WIDTH 8 #include #undef RASOPS_WIDTH #define RASOPS_WIDTH 12 #include #undef RASOPS_WIDTH #define RASOPS_WIDTH 16 #include #undef RASOPS_WIDTH #endif /* !RASOPS_SMALL */