int LOC_open_driver(void)
{
const char *p = getenv("GRASS_RENDER_IMMEDIATE");
const struct driver *drv = (p && G_strcasecmp(p, "PS") == 0)
? PS_Driver()
: PNG_Driver();
LIB_init(drv, 0, NULL);
LOC_init();
COM_Client_Open();
return OK;
}
/*!
\brief Open display driver
Default display driver is Cairo, if not available PNG is used.
\return 0 on success
\return 1 no monitor defined
*/
int D_open_driver(void)
{
const char *p, *m;
G_debug(1, "D_open_driver():");
p = getenv("GRASS_RENDER_IMMEDIATE");
m = G__getenv("MONITOR");
if (m && G_strncasecmp(m, "wx", 2) == 0) {
/* wx monitors always use GRASS_RENDER_IMMEDIATE. */
p = NULL; /* use default display driver */
} else if (m) {
char *env;
const char *v;
char *u_m;
if (p)
G_warning(_("%s variable defined, %s ignored"),
"MONITOR", "GRASS_RENDER_IMMEDIATE");
/* GRASS variable names should be upper case. */
u_m = G_store_upper(m);
env = NULL;
G_asprintf(&env, "MONITOR_%s_MAPFILE", u_m);
v = G__getenv(env);
p = m;
if (v) {
if (G_strcasecmp(p, "ps") == 0)
G_putenv("GRASS_PSFILE", v);
else
G_putenv("GRASS_PNGFILE", v);
}
G_asprintf(&env, "MONITOR_%s_ENVFILE", u_m);
v = G__getenv(env);
if (v)
read_env_file(v);
}
const struct driver *drv =
(p && G_strcasecmp(p, "PNG") == 0) ? PNG_Driver() :
(p && G_strcasecmp(p, "PS") == 0) ? PS_Driver() :
(p && G_strcasecmp(p, "HTML") == 0) ? HTML_Driver() :
#ifdef USE_CAIRO
(p && G_strcasecmp(p, "cairo") == 0) ? Cairo_Driver() :
Cairo_Driver();
#else
PNG_Driver();
#endif
if (p && G_strcasecmp(drv->name, p) != 0)
G_warning(_("Unknown display driver <%s>"), p);
G_verbose_message(_("Using display driver <%s>..."), drv->name);
LIB_init(drv);
init();
if (!getenv("GRASS_RENDER_IMMEDIATE") && !m)
return 1;
return 0;
}