void obs_source_filter_add(obs_source_t source, obs_source_t filter)
{
if (!source || !filter)
return;
pthread_mutex_lock(&source->filter_mutex);
if (da_find(source->filters, &filter, 0) != DARRAY_INVALID) {
blog(LOG_WARNING, "Tried to add a filter that was already "
"present on the source");
return;
}
if (source->filters.num) {
obs_source_t *back = da_end(source->filters);
(*back)->filter_target = filter;
}
da_push_back(source->filters, &filter);
pthread_mutex_unlock(&source->filter_mutex);
filter->filter_parent = source;
filter->filter_target = source;
}
void device_projection_pop(device_t device)
{
struct matrix4 *end;
if (!device->proj_stack.num)
return;
end = da_end(device->proj_stack);
device->cur_proj = *end;
da_pop_back(device->proj_stack);
}
void gs_viewport_pop(void)
{
struct gs_rect *rect;
if (!thread_graphics->viewport_stack.num)
return;
rect = da_end(thread_graphics->viewport_stack);
gs_setviewport(rect->x, rect->y, rect->cx, rect->cy);
da_pop_back(thread_graphics->viewport_stack);
}