forked from bartvdbraak/blender
81 lines
2.9 KiB
Common Lisp
81 lines
2.9 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_scene_intersect.h"
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__kernel void kernel_ocl_path_trace_scene_intersect(
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ccl_global char *kg,
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ccl_constant KernelData *data,
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ccl_global uint *rng_coop,
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ccl_global Ray *Ray_coop, /* Required for scene_intersect */
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ccl_global PathState *PathState_coop, /* Required for scene_intersect */
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Intersection *Intersection_coop, /* Required for scene_intersect */
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ccl_global char *ray_state, /* Denotes the state of each ray */
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int sw, int sh,
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ccl_global int *Queue_data, /* Memory for queues */
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ccl_global int *Queue_index, /* Tracks the number of elements in queues */
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int queuesize, /* Size (capacity) of queues */
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ccl_global char *use_queues_flag, /* used to decide if this kernel should use
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* queues to fetch ray index */
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#ifdef __KERNEL_DEBUG__
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DebugData *debugdata_coop,
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#endif
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int parallel_samples) /* Number of samples to be processed in parallel */
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{
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int x = get_global_id(0);
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int y = get_global_id(1);
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/* Fetch use_queues_flag */
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ccl_local char local_use_queues_flag;
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if(get_local_id(0) == 0 && get_local_id(1) == 0) {
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local_use_queues_flag = use_queues_flag[0];
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}
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barrier(CLK_LOCAL_MEM_FENCE);
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int ray_index;
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if(local_use_queues_flag) {
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int thread_index = get_global_id(1) * get_global_size(0) + get_global_id(0);
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ray_index = get_ray_index(thread_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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if(ray_index == QUEUE_EMPTY_SLOT) {
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return;
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}
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} else {
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if(x < (sw * parallel_samples) && y < sh) {
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ray_index = x + y * (sw * parallel_samples);
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} else {
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return;
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}
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}
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kernel_scene_intersect((KernelGlobals *)kg,
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rng_coop,
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Ray_coop,
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PathState_coop,
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Intersection_coop,
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ray_state,
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sw, sh,
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use_queues_flag,
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#ifdef __KERNEL_DEBUG__
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debugdata_coop,
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#endif
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ray_index);
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}
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