obs-StreamFX/source/obs/obs-tools.cpp

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/*
* Modern effects for a modern Streamer
* Copyright (C) 2018 Michael Fabian Dirks
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include "obs-tools.hpp"
#include <map>
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#include <stdexcept>
#include "plugin.hpp"
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struct scs_searchdata {
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obs_source_t* source;
bool found = false;
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std::map<obs_source_t*, bool> visited;
};
static bool scs_contains(scs_searchdata& sd, obs_source_t* source);
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static void scs_enum_active_cb(obs_source_t*, obs_source_t* child, void* searchdata) noexcept
try {
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scs_searchdata& sd = reinterpret_cast<scs_searchdata&>(*reinterpret_cast<scs_searchdata*>(searchdata));
scs_contains(sd, child);
} catch (...) {
P_LOG_ERROR("Unexpected exception in function '%s'.", __FUNCTION_NAME__);
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}
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static bool scs_enum_items_cb(obs_scene_t*, obs_sceneitem_t* item, void* searchdata) noexcept
try {
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scs_searchdata& sd = reinterpret_cast<scs_searchdata&>(*reinterpret_cast<scs_searchdata*>(searchdata));
obs_source_t* source = obs_sceneitem_get_source(item);
return scs_contains(sd, source);
} catch (...) {
P_LOG_ERROR("Unexpected exception in function '%s'.", __FUNCTION_NAME__);
return false;
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}
static bool scs_contains(scs_searchdata& sd, obs_source_t* source)
{
if (sd.visited.find(source) != sd.visited.end()) {
return false;
} else {
sd.visited.insert({source, true});
}
if (source == sd.source) {
sd.found = true;
return true;
} else {
if (strcmp(obs_source_get_id(source), "scene")) {
obs_scene_t* nscene = obs_scene_from_source(source);
obs_scene_enum_items(nscene, scs_enum_items_cb, &sd);
} else {
obs_source_enum_active_sources(source, scs_enum_active_cb, &sd);
}
}
if (sd.found) {
return false;
}
return true;
}
bool obs::tools::scene_contains_source(obs_scene_t* scene, obs_source_t* source)
{
scs_searchdata sd;
sd.source = source;
obs_scene_enum_items(scene, scs_enum_items_cb, &sd);
return sd.found;
}