forked from bartvdbraak/blender
e2161ca854
Use KernelGlobals to access all the global arrays for the intermediate storage instead of passing all this storage things explicitly. Tested here with Intel OpenCL, NVIDIA GTX580 and AMD Fiji, didn't see any artifacts, so guess it's all good. Reviewers: juicyfruit, dingto, lukasstockner97 Differential Revision: https://developer.blender.org/D1736
88 lines
3.3 KiB
Common Lisp
88 lines
3.3 KiB
Common Lisp
/*
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* Copyright 2011-2015 Blender Foundation
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "split/kernel_direct_lighting.h"
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__kernel void kernel_ocl_path_trace_direct_lighting(
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ccl_global char *kg,
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ccl_constant KernelData *data,
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ccl_global char *sd, /* Required for direct lighting */
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ccl_global uint *rng_coop, /* Required for direct lighting */
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ccl_global PathState *PathState_coop, /* Required for direct lighting */
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ccl_global int *ISLamp_coop, /* Required for direct lighting */
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ccl_global Ray *LightRay_coop, /* Required for direct lighting */
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ccl_global BsdfEval *BSDFEval_coop, /* Required for direct lighting */
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ccl_global char *ray_state, /* Denotes the state of each ray */
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ccl_global int *Queue_data, /* Queue memory */
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ccl_global int *Queue_index, /* Tracks the number of elements in each queue */
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int queuesize) /* Size (capacity) of each queue */
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{
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ccl_local unsigned int local_queue_atomics;
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if(get_local_id(0) == 0 && get_local_id(1) == 0) {
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local_queue_atomics = 0;
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}
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barrier(CLK_LOCAL_MEM_FENCE);
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char enqueue_flag = 0;
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int ray_index = get_global_id(1) * get_global_size(0) + get_global_id(0);
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ray_index = get_ray_index(ray_index,
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QUEUE_ACTIVE_AND_REGENERATED_RAYS,
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Queue_data,
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queuesize,
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0);
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#ifdef __COMPUTE_DEVICE_GPU__
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/* If we are executing on a GPU device, we exit all threads that are not
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* required.
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*
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* If we are executing on a CPU device, then we need to keep all threads
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* active since we have barrier() calls later in the kernel. CPU devices,
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* expect all threads to execute barrier statement.
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*/
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if(ray_index == QUEUE_EMPTY_SLOT) {
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return;
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}
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#endif
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#ifndef __COMPUTE_DEVICE_GPU__
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if(ray_index != QUEUE_EMPTY_SLOT) {
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#endif
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enqueue_flag = kernel_direct_lighting((KernelGlobals *)kg,
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(ShaderData *)sd,
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rng_coop,
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PathState_coop,
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ISLamp_coop,
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LightRay_coop,
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BSDFEval_coop,
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ray_state,
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ray_index);
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#ifndef __COMPUTE_DEVICE_GPU__
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}
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#endif
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#ifdef __EMISSION__
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/* Enqueue RAY_SHADOW_RAY_CAST_DL rays. */
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enqueue_ray_index_local(ray_index,
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QUEUE_SHADOW_RAY_CAST_DL_RAYS,
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enqueue_flag,
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queuesize,
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&local_queue_atomics,
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Queue_data,
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Queue_index);
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#endif
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}
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