/*
 * Copyright 2011-2017 Blender Foundation
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

CCL_NAMESPACE_BEGIN

ccl_device void kernel_enqueue_inactive(KernelGlobals *kg,
                                        ccl_local_param unsigned int *local_queue_atomics)
{
#ifdef __BRANCHED_PATH__
	/* Enqeueue RAY_INACTIVE rays into QUEUE_INACTIVE_RAYS queue. */
	if(ccl_local_id(0) == 0 && ccl_local_id(1) == 0) {
		*local_queue_atomics = 0;
	}
	ccl_barrier(CCL_LOCAL_MEM_FENCE);

	int ray_index = ccl_global_id(1) * ccl_global_size(0) + ccl_global_id(0);

	char enqueue_flag = 0;
	if(IS_STATE(kernel_split_state.ray_state, ray_index, RAY_INACTIVE)) {
		enqueue_flag = 1;
	}

	enqueue_ray_index_local(ray_index,
	                        QUEUE_INACTIVE_RAYS,
	                        enqueue_flag,
	                        kernel_split_params.queue_size,
	                        local_queue_atomics,
	                        kernel_split_state.queue_data,
	                        kernel_split_params.queue_index);
#endif  /* __BRANCHED_PATH__ */
}

CCL_NAMESPACE_END