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316 lines
7.4 KiB
C
316 lines
7.4 KiB
C
/******************************************************************************
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Copyright (C) 2017 by Hugh Bailey <jim@obsproject.com>
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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******************************************************************************/
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#include <obs-module.h>
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#include <obs-frontend-api.h>
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#include "obs-scripting-lua.h"
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#define ls_get_libobs_obj(type, lua_index, obs_obj) \
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ls_get_libobs_obj_(script, #type " *", lua_index, obs_obj, NULL, \
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__FUNCTION__, __LINE__)
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#define ls_push_libobs_obj(type, obs_obj, ownership) \
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ls_push_libobs_obj_(script, #type " *", obs_obj, ownership, NULL, \
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__FUNCTION__, __LINE__)
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#define call_func(func, args, rets) \
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call_func_(script, cb->reg_idx, args, rets, #func, "frontend API")
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/* ----------------------------------- */
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static int get_scene_names(lua_State *script)
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{
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char **names = obs_frontend_get_scene_names();
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char **name = names;
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int i = 0;
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lua_newtable(script);
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while (name && *name) {
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lua_pushstring(script, *name);
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lua_rawseti(script, -2, ++i);
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name++;
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}
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bfree(names);
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return 1;
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}
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static int get_scenes(lua_State *script)
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{
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struct obs_frontend_source_list list = {0};
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obs_frontend_get_scenes(&list);
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lua_newtable(script);
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for (size_t i = 0; i < list.sources.num; i++) {
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obs_source_t *source = list.sources.array[i];
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ls_push_libobs_obj(obs_source_t, source, false);
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lua_rawseti(script, -2, (int)(i + 1));
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}
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da_free(list.sources);
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return 1;
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}
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static int get_current_scene(lua_State *script)
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{
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obs_source_t *source = obs_frontend_get_current_scene();
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ls_push_libobs_obj(obs_source_t, source, false);
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return 1;
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}
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static int set_current_scene(lua_State *script)
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{
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obs_source_t *source = NULL;
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ls_get_libobs_obj(obs_source_t, 1, &source);
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obs_frontend_set_current_scene(source);
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return 0;
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}
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static int get_transitions(lua_State *script)
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{
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struct obs_frontend_source_list list = {0};
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obs_frontend_get_transitions(&list);
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lua_newtable(script);
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for (size_t i = 0; i < list.sources.num; i++) {
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obs_source_t *source = list.sources.array[i];
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ls_push_libobs_obj(obs_source_t, source, false);
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lua_rawseti(script, -2, (int)(i + 1));
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}
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da_free(list.sources);
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return 1;
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}
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static int get_current_transition(lua_State *script)
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{
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obs_source_t *source = obs_frontend_get_current_transition();
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ls_push_libobs_obj(obs_source_t, source, false);
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return 1;
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}
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static int set_current_transition(lua_State *script)
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{
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obs_source_t *source = NULL;
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ls_get_libobs_obj(obs_source_t, 1, &source);
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obs_frontend_set_current_transition(source);
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return 0;
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}
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static int get_scene_collections(lua_State *script)
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{
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char **names = obs_frontend_get_scene_collections();
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char **name = names;
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int i = 0;
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lua_newtable(script);
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while (name && *name) {
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lua_pushstring(script, *name);
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lua_rawseti(script, -2, ++i);
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name++;
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}
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bfree(names);
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return 1;
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}
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static int get_current_scene_collection(lua_State *script)
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{
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char *name = obs_frontend_get_current_scene_collection();
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lua_pushstring(script, name);
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bfree(name);
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return 1;
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}
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static int set_current_scene_collection(lua_State *script)
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{
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if (lua_isstring(script, 1)) {
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const char *name = lua_tostring(script, 1);
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obs_frontend_set_current_scene_collection(name);
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}
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return 0;
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}
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static int get_profiles(lua_State *script)
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{
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char **names = obs_frontend_get_profiles();
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char **name = names;
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int i = 0;
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lua_newtable(script);
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while (name && *name) {
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lua_pushstring(script, *name);
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lua_rawseti(script, -2, ++i);
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name++;
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}
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bfree(names);
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return 1;
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}
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static int get_current_profile(lua_State *script)
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{
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char *name = obs_frontend_get_current_profile();
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lua_pushstring(script, name);
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bfree(name);
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return 1;
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}
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static int set_current_profile(lua_State *script)
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{
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if (lua_isstring(script, 1)) {
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const char *name = lua_tostring(script, 1);
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obs_frontend_set_current_profile(name);
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}
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return 0;
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}
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/* ----------------------------------- */
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static void frontend_event_callback(enum obs_frontend_event event, void *priv)
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{
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struct lua_obs_callback *cb = priv;
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lua_State *script = cb->script;
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if (cb->base.removed) {
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obs_frontend_remove_event_callback(frontend_event_callback, cb);
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return;
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}
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lock_callback();
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lua_pushinteger(script, (int)event);
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call_func(frontend_event_callback, 1, 0);
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unlock_callback();
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}
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static int remove_event_callback(lua_State *script)
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{
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if (!verify_args1(script, is_function))
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return 0;
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struct lua_obs_callback *cb = find_lua_obs_callback(script, 1);
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if (cb) {
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remove_lua_obs_callback(cb);
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}
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return 0;
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}
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static void add_event_callback_defer(void *cb)
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{
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obs_frontend_add_event_callback(frontend_event_callback, cb);
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}
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static int add_event_callback(lua_State *script)
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{
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if (!verify_args1(script, is_function))
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return 0;
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struct lua_obs_callback *cb = add_lua_obs_callback(script, 1);
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defer_call_post(add_event_callback_defer, cb);
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return 0;
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}
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/* ----------------------------------- */
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static void frontend_save_callback(obs_data_t *save_data, bool saving,
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void *priv)
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{
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struct lua_obs_callback *cb = priv;
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lua_State *script = cb->script;
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if (cb->base.removed) {
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obs_frontend_remove_save_callback(frontend_save_callback, cb);
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return;
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}
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lock_callback();
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ls_push_libobs_obj(obs_data_t, save_data, false);
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lua_pushboolean(script, saving);
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call_func(frontend_save_callback, 2, 0);
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unlock_callback();
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}
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static int remove_save_callback(lua_State *script)
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{
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if (!verify_args1(script, is_function))
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return 0;
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struct lua_obs_callback *cb = find_lua_obs_callback(script, 1);
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if (cb) {
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remove_lua_obs_callback(cb);
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}
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return 0;
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}
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static void add_save_callback_defer(void *cb)
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{
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obs_frontend_add_save_callback(frontend_save_callback, cb);
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}
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static int add_save_callback(lua_State *script)
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{
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if (!verify_args1(script, is_function))
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return 0;
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struct lua_obs_callback *cb = add_lua_obs_callback(script, 1);
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defer_call_post(add_save_callback_defer, cb);
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return 0;
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}
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/* ----------------------------------- */
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void add_lua_frontend_funcs(lua_State *script)
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{
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lua_getglobal(script, "obslua");
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#define add_func(name) \
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do { \
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lua_pushstring(script, "obs_frontend_" #name); \
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lua_pushcfunction(script, name); \
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lua_rawset(script, -3); \
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} while (false)
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add_func(get_scene_names);
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add_func(get_scenes);
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add_func(get_current_scene);
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add_func(set_current_scene);
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add_func(get_transitions);
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add_func(get_current_transition);
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add_func(set_current_transition);
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add_func(get_scene_collections);
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add_func(get_current_scene_collection);
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add_func(set_current_scene_collection);
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add_func(get_profiles);
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add_func(get_current_profile);
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add_func(set_current_profile);
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add_func(remove_event_callback);
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add_func(add_event_callback);
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add_func(remove_save_callback);
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add_func(add_save_callback);
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#undef add_func
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lua_pop(script, 1);
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}
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