103ef75310
Scene items previously were removed by calling obs_sceneitem_destroy, but this proved to be a potential race condition where two different threads could try to destroy the same scene item at the same time. Instead of doing that, reference counting is now used on scene items, and an explicit obs_sceneitem_remove function is used instead for item removal, which sets a 'removed' variable to ensure it can only be called exactly one time.
49 lines
1.5 KiB
C
49 lines
1.5 KiB
C
/******************************************************************************
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Copyright (C) 2013 by Hugh Bailey <obs.jim@gmail.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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#pragma once
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#include "obs.h"
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#include "obs-source.h"
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/* how obs scene! */
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struct obs_scene_item {
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volatile int ref;
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volatile bool removed;
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struct obs_scene *parent;
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struct obs_source *source;
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bool visible;
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struct vec2 origin;
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struct vec2 pos;
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struct vec2 scale;
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float rot;
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/* would do **prev_next, but not really great for reordering */
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struct obs_scene_item *prev;
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struct obs_scene_item *next;
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};
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struct obs_scene {
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struct obs_source *source;
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pthread_mutex_t mutex;
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struct obs_scene_item *first_item;
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};
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