This is colormap.c in view mode; [Download] [Up]
#include <stdio.h>
#include <sys/types.h>
#include "ooglutil.h"
#include "color.h"
ColorA builtin[] =
{0.8, 0.1, 0.1, 0.75, 0.1, 0.65, 0.4, 0.75, 0.1, 0.1, 0.8, 0.75,
0.9, 0.6, 0, 0.75, 0, 0.6, 0.8, 0.75, 0.5, 0, 0.9, 0.75,
.7, .15, .1, .75,
.2, .2, .8, .75,
.9, .6, .02, .75,
.1, .3, .8, .75,
.1, .7, .2, .75,
.8, .8, .4, .75,
.7, .7, 0, .75,
.7, 0, .7, .75,
0, .7, .7, .75,
.9, 0, .2, .75,
.2, .9, 0, .75,
0, .2, .9, .75,
.75, .75, .75, .75,
.8, .4, 0, .75,
.8, .4, 0, .75,
0, .4, .8, .75,
0, .4, .8, .75,
0, .8, .4, .75,
0, .8, .4, .75,
.4, 0, .8, .75};
ColorA *colormap = NULL;
static int cnt;
static int doneread = 0;
static char default_name[] = "sample.cmap";
int
readcmap(cmapfname)
char *cmapfname;
{
FILE *fp;
int size = 256;
if (cmapfname == NULL) cmapfname = findfile(NULL, default_name);
doneread = 1;
if(cmapfname == NULL || (fp = fopen(cmapfname,"r")) == NULL)
goto ZXCV;
cnt = 0;
colormap = (ColorA *) malloc(sizeof(ColorA) * size);
while (fscanf(fp, "%f%f%f%f",
&colormap[cnt].r, &colormap[cnt].g, &colormap[cnt].b, &colormap[cnt].a) == 4)
{
cnt++;
if (cnt > size) {
size *= 2;
colormap = (ColorA *) realloc(colormap, sizeof(ColorA) * size);
if (colormap == NULL) goto ZXCV;
}
}
return(cnt);
/*
fprintf(stderr,"readcmap: %d entries read\n",cnt);
*/
ZXCV:
colormap = builtin;
cnt = sizeof(builtin);
return(cnt);
}
ColorA
GetCmapEntry(n)
int n;
{
if (!doneread) {
char *cmapfile;
extern char *getenv();
if((cmapfile = getenv("CMAP_FILE")) != NULL)
fprintf(stderr,"Using CMAP_FILE environment variable to read color map\n");
readcmap(cmapfile);
}
if (n < 0 || n > cnt) return(colormap[0]);
else return (colormap[n]);
}
These are the contents of the former NiCE NeXT User Group NeXTSTEP/OpenStep software archive, currently hosted by Netfuture.ch.