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/*
xmc2c - convert gimp exported xmc to C source X bitmap mouse cursor
Copyright (C) 2022 Tibor 'Igor2' Palinkas
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 of the License, 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.,
31 Milk Street, # 960789 Boston, MA 02196 USA.
http://www.repo.hu/projects/librnd
*/
/* Converts an xmc file exported from gimp to C source. Reads xmc on stdin,
prints output on stdout. */
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
static long read_int32(char *s)
{
return (unsigned long)s[0] | (unsigned long)s[1] << 8 | (unsigned long)s[2] << 16 | (unsigned long)s[3] << 24;
}
static void dump(const unsigned char *s, long len)
{
long n;
printf("\t");
for(n = 0; n < len; n++,s++) {
printf("0x%02x", *s);
if (n != len-1)
printf(", ");
if ((n % 12) == 11)
printf("\n\t");
}
}
int main(int argc, char *argv[])
{
const char *name = "foo";
char hdr[64], *s;
long w, h, hotx, hoty, len, n, bp;
unsigned char *icon, *mask, *i, *m;
if (argv[1] != NULL)
name = argv[1];
if (fread(hdr, 64, 1, stdin) != 1) {
fprintf(stderr, "error reading the header\n");
return 1;
}
if (strncmp(hdr, "Xcur", 4) != 0) {
fprintf(stderr, "Broken header\n");
return 1;
}
s = &hdr[0x2c];
w = read_int32(s); s += 4;
h = read_int32(s); s += 4;
hotx = read_int32(s); s += 4;
hoty = read_int32(s); s += 4;
/* printf("size=%ld %ld hot %ld %ld\n", w, h, hotx, hoty);*/
/* read pixels */
len = w*h;
i = icon = calloc(len/8, 1);
m = mask = calloc(len/8, 1);
for(n = bp = 0; n < len; n++) {
int r, g, b, a, v;
r = fgetc(stdin);
g = fgetc(stdin);
b = fgetc(stdin);
a = fgetc(stdin);
if ((r == EOF) || (g == EOF) || (b == EOF) || (a == EOF)) {
fprintf(stderr, "premature EOF in pixel data\n");
return 1;
}
v = r || g || b;
a = !!a;
*i = ((*i) >> 1) | (v ? 0x80 : 0);
*m = ((*m) >> 1) | (a ? 0x80 : 0);
bp++;
if (bp == 8) {
bp = 0;
i++;
m++;
}
}
printf("#define %sIcon_width %ld\n", name, w);
printf("#define %sIcon_height %ld\n", name, h);
printf("static unsigned char %sIcon_bits[] = {\n", name);
dump(icon, len/8);
printf("};\n");
printf("#define %sMask_width %ld\n", name, w);
printf("#define %sMask_height %ld\n", name, h);
printf("static unsigned char %sMask_bits[] = {\n", name);
dump(mask, len/8);
printf("};\n");
free(mask);
free(icon);
return 0;
}
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