int main(int argc, char **argv) {
glutInit(&argc, argv);
glutInitDisplayMode(GLUT_DOUBLE | GLUT_RGB | GLUT_DEPTH);
glutCreateWindow("3D lighted cube");
glutDisplayFunc(display);
loadtex();
init();
glutMainLoop();
return 0; /* ANSI C requires main to return int. */
}
int
loadatlas(Array *map, const char *spec, const char *image) {
if(!map || !spec || !image)
return 0;
FILE *specfile = fopen(spec, "rb");
if(!spec)
return 0;
unsigned int atlas = loadtex(image);
if(!atlas)
return 0;
size_t nprev = map->nmemb;
Texture *tex;
Texture *dup;
int ntex;
for(ntex = 0; (tex = specline(map, specfile)); ) {
tex->handle = atlas;
dup = findntex(map, nprev, tex->name);
// Ignore this line on duplicate, or we could:
// memset(dup, tex,
// sizeof(Texture) - sizeof(tex->name));
// freetex(tex);
// tex = dup;
if(dup) {
printf("duplicate found: %s\n", tex->name);
freetex(tex);
} else {
printf("inserting: %s\n", tex->name);
arraypush(map, &tex);
ntex++;
}
}
fclose(specfile);
if(!ntex) {
glDeleteTextures(1, &atlas);
return 0;
}
qsort(map->ptr, map->nmemb, map->size,
(int(*)(const void*, const void*))texcmp);
return ntex;
}
