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/*
* ppm.c
* kirk johnson
* july 1993
*
* RCS $Id: ppm.c,v 1.8 1995/09/24 00:46:07 tuna Exp $
*
* Copyright (C) 1989, 1990, 1993, 1994, 1995 Kirk Lauritz Johnson
*
* Parts of the source code (as marked) are:
* Copyright (C) 1989, 1990, 1991 by Jim Frost
* Copyright (C) 1992 by Jamie Zawinski <jwz@lucid.com>
*
* Permission to use, copy, modify and freely distribute xearth for
* non-commercial and not-for-profit purposes is hereby granted
* without fee, provided that both the above copyright notice and this
* permission notice appear in all copies and in supporting
* documentation.
*
* Unisys Corporation holds worldwide patent rights on the Lempel Zev
* Welch (LZW) compression technique employed in the CompuServe GIF
* image file format as well as in other formats. Unisys has made it
* clear, however, that it does not require licensing or fees to be
* paid for freely distributed, non-commercial applications (such as
* xearth) that employ LZW/GIF technology. Those wishing further
* information about licensing the LZW patent should contact Unisys
* directly at (lzw_info@unisys.com) or by writing to
*
* Unisys Corporation
* Welch Licensing Department
* M/S-C1SW19
* P.O. Box 500
* Blue Bell, PA 19424
*
* The author makes no representations about the suitability of this
* software for any purpose. It is provided "as is" without express or
* implied warranty.
*
* THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS,
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, INDIRECT
* OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
* LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
* NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include "xearth.h"
#include "kljcpyrt.h"
static void ppm_setup _P((FILE *));
static void ppm_row _P((u_char *));
static FILE *outs;
static unsigned bytes_per_row;
void ppm_output()
{
compute_positions();
scan_map();
do_dots();
ppm_setup(stdout);
render(ppm_row);
}
static void ppm_setup(s)
FILE *s;
{
outs = s;
bytes_per_row = wdth * 3;
fprintf(outs, "P6\n%d %d\n255\n", wdth, hght);
}
static void ppm_row(row)
u_char *row;
{
assert(fwrite(row, 1, bytes_per_row, outs) == bytes_per_row);
}
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