2015-05-21 12:40:04 +00:00
|
|
|
/*
|
|
|
|
* Copyright 2011-2015 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.
|
|
|
|
*/
|
|
|
|
|
|
|
|
#include "split/kernel_next_iteration_setup.h"
|
|
|
|
|
|
|
|
__kernel void kernel_ocl_path_trace_next_iteration_setup(
|
2015-10-29 16:44:36 +00:00
|
|
|
ccl_global char *kg,
|
2015-11-01 16:00:26 +00:00
|
|
|
ccl_constant KernelData *data,
|
2015-10-29 16:44:36 +00:00
|
|
|
ccl_global char *sd, /* Required for setting up ray for next iteration */
|
2015-05-21 12:40:04 +00:00
|
|
|
ccl_global uint *rng_coop, /* Required for setting up ray for next iteration */
|
|
|
|
ccl_global float3 *throughput_coop, /* Required for setting up ray for next iteration */
|
|
|
|
PathRadiance *PathRadiance_coop, /* Required for setting up ray for next iteration */
|
|
|
|
ccl_global Ray *Ray_coop, /* Required for setting up ray for next iteration */
|
|
|
|
ccl_global PathState *PathState_coop, /* Required for setting up ray for next iteration */
|
|
|
|
ccl_global Ray *LightRay_dl_coop, /* Required for radiance update - direct lighting */
|
|
|
|
ccl_global int *ISLamp_coop, /* Required for radiance update - direct lighting */
|
|
|
|
ccl_global BsdfEval *BSDFEval_coop, /* Required for radiance update - direct lighting */
|
|
|
|
ccl_global Ray *LightRay_ao_coop, /* Required for radiance update - AO */
|
|
|
|
ccl_global float3 *AOBSDF_coop, /* Required for radiance update - AO */
|
|
|
|
ccl_global float3 *AOAlpha_coop, /* Required for radiance update - AO */
|
|
|
|
ccl_global char *ray_state, /* Denotes the state of each ray */
|
|
|
|
ccl_global int *Queue_data, /* Queue memory */
|
|
|
|
ccl_global int *Queue_index, /* Tracks the number of elements in each queue */
|
|
|
|
int queuesize, /* Size (capacity) of each queue */
|
2015-05-26 14:12:49 +00:00
|
|
|
ccl_global char *use_queues_flag) /* flag to decide if scene_intersect kernel should
|
|
|
|
* use queues to fetch ray index */
|
2015-05-21 12:40:04 +00:00
|
|
|
{
|
2015-05-26 14:12:49 +00:00
|
|
|
ccl_local unsigned int local_queue_atomics;
|
|
|
|
if(get_local_id(0) == 0 && get_local_id(1) == 0) {
|
|
|
|
local_queue_atomics = 0;
|
|
|
|
}
|
|
|
|
barrier(CLK_LOCAL_MEM_FENCE);
|
|
|
|
|
|
|
|
if(get_global_id(0) == 0 && get_global_id(1) == 0) {
|
|
|
|
/* If we are here, then it means that scene-intersect kernel
|
|
|
|
* has already been executed atleast once. From the next time,
|
|
|
|
* scene-intersect kernel may operate on queues to fetch ray index
|
|
|
|
*/
|
|
|
|
use_queues_flag[0] = 1;
|
|
|
|
|
|
|
|
/* Mark queue indices of QUEUE_SHADOW_RAY_CAST_AO_RAYS and
|
|
|
|
* QUEUE_SHADOW_RAY_CAST_DL_RAYS queues that were made empty during the
|
|
|
|
* previous kernel.
|
|
|
|
*/
|
|
|
|
Queue_index[QUEUE_SHADOW_RAY_CAST_AO_RAYS] = 0;
|
|
|
|
Queue_index[QUEUE_SHADOW_RAY_CAST_DL_RAYS] = 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
char enqueue_flag = 0;
|
|
|
|
int ray_index = get_global_id(1) * get_global_size(0) + get_global_id(0);
|
|
|
|
ray_index = get_ray_index(ray_index,
|
|
|
|
QUEUE_ACTIVE_AND_REGENERATED_RAYS,
|
|
|
|
Queue_data,
|
|
|
|
queuesize,
|
|
|
|
0);
|
|
|
|
|
|
|
|
#ifdef __COMPUTE_DEVICE_GPU__
|
|
|
|
/* If we are executing on a GPU device, we exit all threads that are not
|
|
|
|
* required.
|
|
|
|
*
|
|
|
|
* If we are executing on a CPU device, then we need to keep all threads
|
|
|
|
* active since we have barrier() calls later in the kernel. CPU devices,
|
|
|
|
* expect all threads to execute barrier statement.
|
|
|
|
*/
|
|
|
|
if(ray_index == QUEUE_EMPTY_SLOT) {
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
|
|
|
|
#ifndef __COMPUTE_DEVICE_GPU__
|
|
|
|
if(ray_index != QUEUE_EMPTY_SLOT) {
|
|
|
|
#endif
|
2015-10-29 16:44:36 +00:00
|
|
|
enqueue_flag = kernel_next_iteration_setup((KernelGlobals *)kg,
|
|
|
|
(ShaderData *)sd,
|
2015-05-26 14:12:49 +00:00
|
|
|
rng_coop,
|
|
|
|
throughput_coop,
|
|
|
|
PathRadiance_coop,
|
|
|
|
Ray_coop,
|
|
|
|
PathState_coop,
|
|
|
|
LightRay_dl_coop,
|
|
|
|
ISLamp_coop,
|
|
|
|
BSDFEval_coop,
|
|
|
|
LightRay_ao_coop,
|
|
|
|
AOBSDF_coop,
|
|
|
|
AOAlpha_coop,
|
|
|
|
ray_state,
|
|
|
|
use_queues_flag,
|
|
|
|
ray_index);
|
|
|
|
#ifndef __COMPUTE_DEVICE_GPU__
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
|
|
|
|
/* Enqueue RAY_UPDATE_BUFFER rays. */
|
|
|
|
enqueue_ray_index_local(ray_index,
|
|
|
|
QUEUE_HITBG_BUFF_UPDATE_TOREGEN_RAYS,
|
|
|
|
enqueue_flag,
|
|
|
|
queuesize,
|
|
|
|
&local_queue_atomics,
|
|
|
|
Queue_data,
|
|
|
|
Queue_index);
|
2015-05-21 12:40:04 +00:00
|
|
|
}
|