d4f1eacc1f
Now sources will be properly activated and deactivated when they are in use or not in use. Had to figure out a way to handle child sources, and children of children, just ended up implementing simple functions that parents use to signal adding/removal to help with hierarchial activation and deactivation of child sources. To prevent the source activate/deactivate callbacks from being called more than once, added an activation reference counter. The first increment will call the activate callback, and the last decrement will call the deactivate callback. Added "source-activate" and "source-deactivate" signals to the main obs signal handler, and "activate" and "deactivate" to individual source signal handlers. Also, fixed the main window so it properly selects a source when the current active scene has been changed.
132 lines
3.0 KiB
C
132 lines
3.0 KiB
C
/******************************************************************************
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Copyright (C) 2014 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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#include "obs.h"
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#include "obs-internal.h"
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bool obs_view_init(struct obs_view *view)
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{
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pthread_mutex_init_value(&view->channels_mutex);
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if (pthread_mutex_init(&view->channels_mutex, NULL) != 0) {
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blog(LOG_ERROR, "obs_view_init: Failed to create mutex");
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return false;
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}
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return true;
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}
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obs_view_t obs_view_create(void)
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{
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struct obs_view *view = bzalloc(sizeof(struct obs_view));
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if (!obs_view_init(view)) {
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bfree(view);
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view = NULL;
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}
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return view;
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}
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void obs_view_free(struct obs_view *view)
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{
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for (size_t i = 0; i < MAX_CHANNELS; i++)
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obs_source_release(view->channels[i]);
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memset(view->channels, 0, sizeof(view->channels));
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pthread_mutex_destroy(&view->channels_mutex);
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}
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void obs_view_destroy(obs_view_t view)
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{
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if (view) {
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obs_view_free(view);
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bfree(view);
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}
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}
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obs_source_t obs_view_getsource(obs_view_t view, uint32_t channel)
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{
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obs_source_t source;
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assert(channel < MAX_CHANNELS);
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if (!view) return NULL;
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if (channel >= MAX_CHANNELS) return NULL;
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pthread_mutex_lock(&view->channels_mutex);
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source = view->channels[channel];
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if (source)
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obs_source_addref(source);
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pthread_mutex_unlock(&view->channels_mutex);
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return source;
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}
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void obs_view_setsource(obs_view_t view, uint32_t channel,
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obs_source_t source)
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{
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struct obs_source *prev_source;
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assert(channel < MAX_CHANNELS);
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if (!view) return;
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if (channel >= MAX_CHANNELS) return;
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pthread_mutex_lock(&view->channels_mutex);
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prev_source = view->channels[channel];
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view->channels[channel] = source;
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if (source) {
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obs_source_addref(source);
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obs_source_activate(source);
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}
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if (prev_source) {
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obs_source_deactivate(prev_source);
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obs_source_release(prev_source);
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}
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pthread_mutex_unlock(&view->channels_mutex);
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}
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void obs_view_render(obs_view_t view)
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{
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if (!view) return;
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pthread_mutex_lock(&view->channels_mutex);
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for (size_t i = 0; i < MAX_CHANNELS; i++) {
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struct obs_source *source;
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source = view->channels[i];
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if (source) {
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if (source->removed) {
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obs_source_release(source);
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view->channels[i] = NULL;
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} else {
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obs_source_video_render(source);
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}
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}
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}
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pthread_mutex_unlock(&view->channels_mutex);
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}
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