/* $NetBSD: wscons_rops.c,v 1.11 2005/12/11 12:24:12 christos Exp $ */

/*
* Copyright (c) 1991, 1993
*      The Regents of the University of California.  All rights reserved.
*
* This software was developed by the Computer Systems Engineering group
* at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
* contributed to Berkeley.
*
* All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
*      This product includes software developed by the University of
*      California, Lawrence Berkeley Laboratory.
*
* 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.
* 3. Neither the name of the University nor the names of its contributors
*    may be used to endorse or promote products derived from this software
*    without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
*
*      @(#)rcons_subr.c        8.1 (Berkeley) 6/11/93
*/

#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: wscons_rops.c,v 1.11 2005/12/11 12:24:12 christos Exp $");

#include <sys/param.h>
#include <sys/device.h>

#include <dev/rcons/raster.h>
#include <dev/wscons/wscons_raster.h>
#include <dev/wscons/wsdisplayvar.h>

/*
* Paint (or unpaint) the cursor.
* Pays no lip service to hardware cursors.
*/
void
rcons_cursor(void *id, int on, int row, int col)
{
       struct rcons *rc = id;
       int x, y;

       /* turn the cursor off */
       if (!on) {
               /* make sure it's on */
               if ((rc->rc_bits & RC_CURSOR) == 0)
                       return;

               row = *rc->rc_crowp;
               col = *rc->rc_ccolp;
       } else {
               /* unpaint the old copy. */
               *rc->rc_crowp = row;
               *rc->rc_ccolp = col;
       }

       x = col * rc->rc_font->width + rc->rc_xorigin;
       y = row * rc->rc_font->height + rc->rc_yorigin;

       raster_op(rc->rc_sp, x, y,
#ifdef notdef
           /* XXX This is the right way but too slow */
           rc->rc_font->chars[(int)' '].r->width,
           rc->rc_font->chars[(int)' '].r->height,
#else
           rc->rc_font->width, rc->rc_font->height,
#endif
           RAS_INVERT,
           (struct raster *) 0, 0, 0);

       rc->rc_bits ^= RC_CURSOR;
}

int
rcons_mapchar(void *id, int uni, unsigned int *index)
{

       if (uni < 128) {
               *index = uni;
               return (5);
       }
       *index = ' ';
       return (0);
}

/*
* Actually write a string to the frame buffer.
*/
void
rcons_putchar(void *id, int row, int col, u_int uc, long attr)
{
       struct rcons *rc = id;
       int x, y, op;
       u_char help;

       x = col * rc->rc_font->width + rc->rc_xorigin;
       y = row * rc->rc_font->height + rc->rc_font_ascent + rc->rc_yorigin;

       op = RAS_SRC;
       if ((attr != 0) ^ ((rc->rc_bits & RC_INVERT) != 0))
               op = RAS_NOT(op);
       help = uc & 0xff;
       raster_textn(rc->rc_sp, x, y, op, rc->rc_font, &help, 1);
}

/*
* Possibly change to white-on-black or black-on-white modes.
*/
void
rcons_invert(void *id, int inverted)
{
       struct rcons *rc = id;

       if (((rc->rc_bits & RC_INVERT) != 0) ^ inverted) {
               /* Invert the display */
               raster_op(rc->rc_sp, 0, 0, rc->rc_sp->width, rc->rc_sp->height,
                   RAS_INVERT, (struct raster *) 0, 0, 0);

               /* Swap things around */
               rc->rc_bits ^= RC_INVERT;
       }
}

/*
* Copy columns (characters) in a row (line).
*/
void
rcons_copycols(void *id, int row, int srccol, int dstcol, int ncols)
{
       struct rcons *rc = id;
       int y, srcx, dstx, nx;

       y = rc->rc_yorigin + rc->rc_font->height * row;
       srcx = rc->rc_xorigin + rc->rc_font->width * srccol;
       dstx = rc->rc_xorigin + rc->rc_font->width * dstcol;
       nx = rc->rc_font->width * ncols;

       raster_op(rc->rc_sp, dstx, y,
           nx, rc->rc_font->height, RAS_SRC,
           rc->rc_sp, srcx, y);
}

/*
* Clear columns (characters) in a row (line).
*/
void
rcons_erasecols(void *id, int row, int startcol, int ncols, long fillattr)
{
       struct rcons *rc = id;
       int y, startx, nx, op;

       y = rc->rc_yorigin + rc->rc_font->height * row;
       startx = rc->rc_xorigin + rc->rc_font->width * startcol;
       nx = rc->rc_font->width * ncols;

       op = RAS_CLEAR;
       if ((fillattr != 0) ^ ((rc->rc_bits & RC_INVERT) != 0))
               op = RAS_NOT(op);
       raster_op(rc->rc_sp, startx, y,
           nx, rc->rc_font->height, op,
           (struct raster *) 0, 0, 0);
}

/*
* Copy rows (lines).
*/
void
rcons_copyrows(void *id, int srcrow, int dstrow, int nrows)
{
       struct rcons *rc = id;
       int srcy, dsty, ny;

       srcy = rc->rc_yorigin + rc->rc_font->height * srcrow;
       dsty = rc->rc_yorigin + rc->rc_font->height * dstrow;
       ny = rc->rc_font->height * nrows;

       raster_op(rc->rc_sp, rc->rc_xorigin, dsty,
           rc->rc_raswidth, ny, RAS_SRC,
           rc->rc_sp, rc->rc_xorigin, srcy);
}

/*
* Erase rows (lines).
*/
void
rcons_eraserows(void *id, int startrow, int nrows, long fillattr)
{
       struct rcons *rc = id;
       int starty, ny, op;

       starty = rc->rc_yorigin + rc->rc_font->height * startrow;
       ny = rc->rc_font->height * nrows;

       op = RAS_CLEAR;
       if ((fillattr != 0) ^ ((rc->rc_bits & RC_INVERT) != 0))
               op = RAS_NOT(op);
       raster_op(rc->rc_sp, rc->rc_xorigin, starty,
           rc->rc_raswidth, ny, op,
           (struct raster *) 0, 0, 0);
}

int
rcons_allocattr(void *id, int fg, int bg, int flags, long *attrp)
{
       if (flags & (WSATTR_HILIT | WSATTR_BLINK |
                    WSATTR_UNDERLINE | WSATTR_WSCOLORS))
               return (EINVAL);
       if (flags & WSATTR_REVERSE)
               *attrp = 1;
       else
               *attrp = 0;
       return (0);
}

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