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/*
* scheme.c
*
* Copyright © 2019-2020 Thomas White <taw@bitwiz.me.uk>
*
* This file is part of NanoLight.
*
* NanoLight 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 3 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, see <http://www.gnu.org/licenses/>.
*
*/
#include <libguile.h>
#include "lightctx.h"
static SCM fixture_type;
static SCM set_intensity(SCM fixture_scm, SCM intensity_scm)
{
const int intensity = scm_to_int(intensity_scm);
scm_assert_foreign_object_type(fixture_type, fixture_scm);
struct fixture *fixture = scm_foreign_object_ref(fixture_scm, 0);
fixture->v.intensity = (float)intensity/100.0;
return SCM_UNSPECIFIED;
}
static SCM fixture_name(SCM fixture_scm)
{
scm_assert_foreign_object_type(fixture_type, fixture_scm);
struct fixture *fixture = scm_foreign_object_ref(fixture_scm, 0);
return scm_from_utf8_symbol(fixture->label);
}
static void finalize_fixture(SCM fixture)
{
printf("finalise fixture!\n");
}
void *register_scheme_funcs(void *data)
{
struct lightctx *nl = data;
SCM name, slots;
int i;
scm_t_struct_finalize finalizer;
SCM fixture_list;
name = scm_from_utf8_symbol("fixture");
slots = scm_list_1(scm_from_utf8_symbol("data"));
finalizer = finalize_fixture;
fixture_type = scm_make_foreign_object_type(name, slots, finalizer);
fixture_list = SCM_EOL;
for ( i=0; i<nl->n_fixtures; i++ ) {
SCM obj = scm_make_foreign_object_1(fixture_type, &nl->fixtures[i]);
SCM obj_list = scm_list_1(obj);
fixture_list = scm_append(scm_list_2(fixture_list, obj_list));
}
scm_define(scm_from_utf8_symbol("fixtures"), fixture_list);
scm_c_define_gsubr("fixture-name", 1, 0, 0, &fixture_name);
scm_c_define_gsubr("set-intensity", 2, 0, 0, &set_intensity);
return NULL;
}
void *run_repl(void *pargsv)
{
scm_with_guile(®ister_scheme_funcs, pargsv);
scm_shell(0, NULL);
return NULL;
}
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