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/* SCCS Id: @(#)xpm2img.c 3.4 2002/03/17 */
/* Copyright (c) Christian Bressler 2002 */
/* NetHack may be freely redistributed. See license for details. */
/* This is mainly a reworked tile2bmp.c + xpm2iff.c -- Marvin */
#include <stdio.h>
#include <stdlib.h>
#include <ctype.h>
#include "bitmfile.h"
#define TRUE 1
#define FALSE 0
void get_color(unsigned int colind, struct RGB *rgb);
void get_pixel(int x, int y, unsigned int *colind);
char *xpmgetline();
unsigned int **Bild_daten;
/* translation table from xpm characters to RGB and colormap slots */
struct Ttable {
char flag;
struct RGB col;
int slot; /* output colortable index */
}ttable[256];
struct RGB *ColorMap;
int num_colors = 0;
int width=0, height=0;
int initflag;
FILE *fp;
int
main(argc, argv)
int argc;
char *argv[];
{
int i;
int row, col, planeno;
int farben, planes;
if (argc != 3) {
fprintf(stderr, "usage: tile2img infile.xpm outfile.img\n");
exit(EXIT_FAILURE);
}
initflag = 0;
fp = fopen(argv[2],"wb");
if (!fp) {
printf("Error creating IMG-file %s, aborting.\n",argv[2]);
exit(EXIT_FAILURE);
}
fclose(fp);
if(fopen_xpm_file(argv[1],"r")!=TRUE){
printf("Error reading xpm-file %s, aborting.\n",argv[1]);
exit(EXIT_FAILURE);
}
Bild_daten=(unsigned int **)malloc((long)height*sizeof(unsigned int *));
for(i=0;i<height;i++)
Bild_daten[i]=(unsigned int *)malloc((long)width*sizeof(unsigned int));
for(row = 0;row<height;row++){
char *xb = xpmgetline();
int plane_offset;
if(xb==0){
printf("Error to few lines in xpm-file %s, aborting.\n",argv[1]);
exit(EXIT_FAILURE);
}
for(col = 0;col<width;col++){
int color = xb[col];
if(!ttable[color].flag)
fprintf(stderr, "Bad image data\n");
Bild_daten[row][col]= ttable[color].slot;
}
}
if(num_colors>256){
fprintf(stderr,"ERROR: zuviele Farben\n");
exit(EXIT_FAILURE);
}else if(num_colors>16){
farben=256;
planes=8;
}else if(num_colors>2){
farben=16;
planes=4;
}else{
farben=2;
planes=1;
}
bitmap_to_file(XIMG, width, height, 372, 372, planes, farben, argv[2], get_color, get_pixel );
exit(EXIT_SUCCESS);
/*NOTREACHED*/
return 0;
}
void get_color(unsigned int colind, struct RGB *rgb){
rgb->r=(1000L*(long)ColorMap[colind].r)/0xFF;
rgb->g=(1000L*(long)ColorMap[colind].g)/0xFF;
rgb->b=(1000L*(long)ColorMap[colind].b)/0xFF;
}
void get_pixel(int x, int y, unsigned int *colind){
*colind=Bild_daten[y][x];
}
FILE *xpmfh = 0;
char initbuf[200];
char *xpmbuf = initbuf;
/* version 1. Reads the raw xpm file, NOT the compiled version. This is
* not a particularly good idea but I don't have time to do the right thing
* at this point, even if I was absolutely sure what that was. */
fopen_xpm_file(const char *fn, const char *mode){
int temp;
char *xb;
if(strcmp(mode, "r"))return FALSE; /* no choice now */
if(xpmfh)return FALSE; /* one file at a time */
xpmfh = fopen(fn, mode);
if(!xpmfh)return FALSE; /* I'm hard to please */
/* read the header */
xb = xpmgetline();
if(xb == 0)return FALSE;
if(4 != sscanf(xb,"%d %d %d %d",
&width, &height,&num_colors, &temp))
return FALSE; /* bad header */
/* replace the original buffer with one big enough for
* the real data
*/
/* XXX */
xpmbuf = malloc(width * 2);
if(!xpmbuf){
fprintf(stderr,"ERROR: Can't allocate line buffer\n");
exit(1);
}
if(temp != 1)return FALSE; /* limitation of this code */
{
/* read the colormap and translation table */
int ccount = -1;
ColorMap = (struct RGB *)malloc((long)num_colors*sizeof(struct RGB));
while(ccount++ < (num_colors-1)){
char index;
int r, g, b;
xb = xpmgetline();
if(xb==0)return FALSE;
if(4 != sscanf(xb,"%c c #%2x%2x%2x",&index,&r,&g,&b)){
fprintf(stderr,"Bad color entry: %s\n",xb);
return FALSE;
}
ttable[index].flag = 1; /* this color is valid */
ttable[index].col.r = r;
ttable[index].col.g = g;
ttable[index].col.b = b;
ttable[index].slot = ccount;
ColorMap[ccount].r=r;
ColorMap[ccount].g=g;
ColorMap[ccount].b=b;
}
}
return TRUE;
}
/* This deserves better. Don't read it too closely - you'll get ill. */
#define bufsz 2048
char buf[bufsz];
char *
xpmgetline(){
char *bp;
do {
if(fgets(buf, bufsz, xpmfh) == 0)return 0;
} while(buf[0] != '"');
/* strip off the trailing <",> if any */
for(bp = buf;*bp;bp++);
bp--;
while(isspace(*bp))bp--;
if(*bp==',')bp--;
if(*bp=='"')bp--;
bp++;
*bp = '\0';
return &buf[1];
}
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