IABSD.fr/src/sys/dev/rasops/rasops32.c

Branch : - branch - master - tag -

• Show log

  Commit

• Author : fcambus
  Date : 2020-07-20 12:40:45
  Hash : 63cfed36
  Message : Fix various whitespace and formatting issues in rasops(9).

• sys/dev/rasops/rasops32.c

• /*	$OpenBSD: rasops32.c,v 1.12 2020/07/20 12:40:45 fcambus Exp $	*/
  /*	$NetBSD: rasops32.c,v 1.7 2000/04/12 14:22:29 pk 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 <sys/param.h>
  #include <sys/systm.h>
  #include <sys/time.h>
  
  #include <dev/wscons/wsdisplayvar.h>
  #include <dev/wscons/wsconsio.h>
  #include <dev/rasops/rasops.h>
  
  int	rasops32_putchar(void *, int, int, u_int, uint32_t);
  
  /*
   * Initialize a 'rasops_info' descriptor for this depth.
   */
  void
  rasops32_init(struct rasops_info *ri)
  {
  	if (ri->ri_rnum == 0) {
  		ri->ri_rnum = 8;
  		ri->ri_rpos = 0;
  		ri->ri_gnum = 8;
  		ri->ri_gpos = 8;
  		ri->ri_bnum = 8;
  		ri->ri_bpos = 16;
  	}
  
  	ri->ri_ops.putchar = rasops32_putchar;
  }
  
  /*
   * Paint a single character.
   */
  int
  rasops32_putchar(void *cookie, int row, int col, u_int uc, uint32_t attr)
  {
  	int width, height, step, cnt, fs, b, f;
  	uint32_t fb, clr[2];
  	struct rasops_info *ri;
  	int64_t *rp;
  	union {
  		int64_t q[4];
  		int32_t d[4][2];
  	} u;
  	u_char *fr;
  
  	ri = (struct rasops_info *)cookie;
  
  #ifdef RASOPS_CLIPPING
  	/* Catches 'row < 0' case too */
  	if ((unsigned)row >= (unsigned)ri->ri_rows)
  		return 0;
  
  	if ((unsigned)col >= (unsigned)ri->ri_cols)
  		return 0;
  #endif
  
  	rp = (int64_t *)(ri->ri_bits + row*ri->ri_yscale + col*ri->ri_xscale);
  
  	height = ri->ri_font->fontheight;
  	width = ri->ri_font->fontwidth;
  	step = ri->ri_stride >> 3;
  
  	b = ri->ri_devcmap[(attr >> 16) & 0xf];
  	f = ri->ri_devcmap[(attr >> 24) & 0xf];
  	u.d[0][0] = b; u.d[0][1] = b;
  	u.d[1][0] = b; u.d[1][1] = f;
  	u.d[2][0] = f; u.d[2][1] = b;
  	u.d[3][0] = f; u.d[3][1] = f;
  
  	if (uc == ' ') {
  		while (height--) {
  			/* the general, pixel-at-a-time case is fast enough */
  			for (cnt = 0; cnt < width; cnt++)
  				((int *)rp)[cnt] = b;
  			rp += step;
  		}
  	} else {
  		uc -= ri->ri_font->firstchar;
  		fr = (u_char *)ri->ri_font->data + uc * ri->ri_fontscale;
  		fs = ri->ri_font->stride;
  
  		/* double-pixel special cases for the common widths */
  		switch (width) {
  		case 8:
  			while (height--) {
  				fb = fr[0];
  				rp[0] = u.q[fb >> 6];
  				rp[1] = u.q[(fb >> 4) & 3];
  				rp[2] = u.q[(fb >> 2) & 3];
  				rp[3] = u.q[fb & 3];
  				rp += step;
  				fr += 1;
  			}
  			break;
  
  		case 12:
  			while (height--) {
  				fb = fr[0];
  				rp[0] = u.q[fb >> 6];
  				rp[1] = u.q[(fb >> 4) & 3];
  				rp[2] = u.q[(fb >> 2) & 3];
  				rp[3] = u.q[fb & 3];
  				fb = fr[1];
  				rp[4] = u.q[fb >> 6];
  				rp[5] = u.q[(fb >> 4) & 3];
  				rp += step;
  				fr += 2;
  			}
  			break;
  
  		case 16:
  			while (height--) {
  				fb = fr[0];
  				rp[0] = u.q[fb >> 6];
  				rp[1] = u.q[(fb >> 4) & 3];
  				rp[2] = u.q[(fb >> 2) & 3];
  				rp[3] = u.q[fb & 3];
  				fb = fr[1];
  				rp[4] = u.q[fb >> 6];
  				rp[5] = u.q[(fb >> 4) & 3];
  				rp[6] = u.q[(fb >> 2) & 3];
  				rp[7] = u.q[fb & 3];
  				rp += step;
  				fr += 2;
  			}
  			break;
  
  		case 32:
  			while (height--) {
  				fb = fr[0];
  				rp[0] = u.q[fb >> 6];
  				rp[1] = u.q[(fb >> 4) & 3];
  				rp[2] = u.q[(fb >> 2) & 3];
  				rp[3] = u.q[fb & 3];
  				fb = fr[1];
  				rp[4] = u.q[fb >> 6];
  				rp[5] = u.q[(fb >> 4) & 3];
  				rp[6] = u.q[(fb >> 2) & 3];
  				rp[7] = u.q[fb & 3];
  				fb = fr[2];
  				rp[8] = u.q[fb >> 6];
  				rp[9] = u.q[(fb >> 4) & 3];
  				rp[10] = u.q[(fb >> 2) & 3];
  				rp[11] = u.q[fb & 3];
  				fb = fr[3];
  				rp[12] = u.q[fb >> 6];
  				rp[13] = u.q[(fb >> 4) & 3];
  				rp[14] = u.q[(fb >> 2) & 3];
  				rp[15] = u.q[fb & 3];
  				rp += step;
  				fr += 4;
  			}
  			break;
  
  		default: /* there is a 5x8 font, so fall back to per-pixel */
  			clr[0] = b;
  			clr[1] = f;
  
  			while (height--) {
  				fb = fr[3] | (fr[2] << 8) | (fr[1] << 16) |
  				    (fr[0] << 24);
  				fr += fs;
  
  				for (cnt = 0; cnt < width; cnt++) {
  					((int *)rp)[cnt] = clr[fb >> 31];
  					fb <<= 1;
  				}
  				rp += step;
  			}
  			break;
  		}
  	}
  
  	/* Do underline a pixel at a time */
  	if ((attr & 1) != 0) {
  		rp -= step;
  		for (cnt = 0; cnt < width; cnt++)
  			((int *)rp)[cnt] = f;
  	}
  
  	return 0;
  }