mirror of
https://github.com/obsproject/obs-studio.git
synced 2024-09-20 04:42:18 +02:00
c9df41c1e2
Typedef pointers are unsafe. If you do: typedef struct bla *bla_t; then you cannot use it as a constant, such as: const bla_t, because that constant will be to the pointer itself rather than to the underlying data. I admit this was a fundamental mistake that must be corrected. All typedefs that were pointer types will now have their pointers removed from the type itself, and the pointers will be used when they are actually used as variables/parameters/returns instead. This does not break ABI though, which is pretty nice.
136 lines
3.0 KiB
C
136 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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if (!view) return false;
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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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if (!view) return;
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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_get_source(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_set_source(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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obs_source_addref(source);
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prev_source = view->channels[channel];
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view->channels[channel] = source;
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pthread_mutex_unlock(&view->channels_mutex);
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if (source)
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obs_source_activate(source, AUX_VIEW);
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if (prev_source) {
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obs_source_deactivate(prev_source, AUX_VIEW);
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obs_source_release(prev_source);
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}
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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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