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/* $Id: Raster.c,v 1.1 2000/03/23 07:24:48 reinelt Exp $
*
* driver for raster formats
*
* Copyright 1999, 2000 by Michael Reinelt (reinelt@eunet.at)
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
*
* $Log: Raster.c,v $
* Revision 1.1 2000/03/23 07:24:48 reinelt
*
* PPM driver up and running (but slow!)
*
*/
/*
*
* exported fuctions:
*
* struct DISPLAY Raster[]
*
*/
#include <stdlib.h>
#include <stdio.h>
#include "cfg.h"
#include "display.h"
#include "pixmap.h"
#define BARS ( BAR_L | BAR_R | BAR_U | BAR_D | BAR_H2 | BAR_V2 )
static DISPLAY Display;
static int pixelsize=-1;
static int pixelgap=0;
static int rowgap=0;
static int colgap=0;
static int border=0;
static int foreground=0;
static int halfground=0;
static int background=0;
#define R(color) (0xff&((color)>>16))
#define G(color) (0xff&((color)>>8))
#define B(color) (0xff&((color)))
int Raster_flush (void)
{
int xsize, ysize;
int x, y, pos;
xsize=2*border+Display.cols*Display.xres*(pixelsize+pixelgap);
ysize=2*border+Display.rows*Display.yres*(pixelsize+pixelgap);
printf ("P3\n");
printf ("%d %d\n", xsize, ysize);
printf ("255\n");
pos=0;
for (y=0; y<ysize; y++) {
for (x=0; x<xsize; x++) {
if (x<border || x>=xsize-border ||
y<border || y>=ysize-border ||
(y-border)%(pixelsize+pixelgap)>=pixelsize ||
(x-border)%(pixelsize+pixelgap)>=pixelsize) {
pos+=printf ("%d %d %d ", R(background), G(background), B(background));
} else {
if (Pixmap[((y-border)/(pixelsize+pixelgap))*Display.cols*Display.xres+(x-border)/(pixelsize+pixelgap)])
pos+=printf ("%d %d %d ", R(foreground), G(foreground), B(foreground));
else
pos+=printf ("%d %d %d ", R(halfground), G(halfground), B(halfground));
}
if (pos>80) {
pos=0;
printf ("\n");
}
}
}
return 0;
}
int Raster_clear (void)
{
if (pix_clear()!=0)
return -1;
return 0;
}
int Raster_init (DISPLAY *Self)
{
int rows=-1;
int cols=-1;
rows=atoi(cfg_get("rows")?:"4");
cols=atoi(cfg_get("columns")?:"20");
pixelsize=atoi(cfg_get("pixelsize")?:"1");
pixelgap=atoi(cfg_get("pixelgap")?:"0");
rowgap=atoi(cfg_get("rowgap")?:"0");
colgap=atoi(cfg_get("colgap")?:"0");
border=atoi(cfg_get("border")?:"0");
foreground=strtol(cfg_get("foreground")?:"000000", NULL, 16);
halfground=strtol(cfg_get("halfground")?:"ffffff", NULL, 16);
background=strtol(cfg_get("background")?:"ffffff", NULL, 16);
if (rows<1 || cols<1) {
fprintf (stderr, "Raster: incorrect number of rows or columns\n");
return -1;
}
if (pixelsize<1) {
fprintf (stderr, "Raster: incorrect pixel size\n");
return -1;
}
if (pix_init (rows, cols)!=0) {
fprintf (stderr, "Raster: pix_init(%d, %d) failed\n", rows, cols);
return -1;
}
Self->rows=rows;
Self->cols=cols;
Display=*Self;
pix_clear();
return 0;
}
int Raster_put (int row, int col, char *text)
{
return pix_put (row, col, text);
}
int Raster_bar (int type, int row, int col, int max, int len1, int len2)
{
return pix_bar (type, row, col, max, len1, len2);
}
DISPLAY Raster[] = {
{ "PPM", 0, 0, XRES, YRES, BARS, Raster_init, Raster_clear, Raster_put, Raster_bar, Raster_flush },
{ "" }
};
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