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//
// Copyright (C) 2009-2021 Intel Corporation
//
// SPDX-License-Identifier: MIT
//
//
module presplit;
kernel_module presplit_kernels ("bvh_build_presplit.cl")
{
links lsc_intrinsics;
kernel opencl_kernel_compute_num_presplits < kernelFunction="compute_num_presplits" >;
kernel opencl_kernel_priority_sum < kernelFunction="priority_sum" >;
kernel opencl_kernel_perform_presplits < kernelFunction="perform_presplits" >;
}
import struct MKBuilderState "structs.grl";
import struct MKSizeEstimate "structs.grl";
metakernel compute_num_presplits(
MKBuilderState state,
qword presplit_buffer,
dword numHwThreads )
{
dispatch opencl_kernel_compute_num_presplits ( numHwThreads, 1, 1 ) args(
state.build_globals,
state.bvh_buffer,
state.build_primref_buffer,
presplit_buffer,
state.geomDesc_buffer );
}
metakernel priority_sum(
MKBuilderState state,
MKSizeEstimate estimate,
qword presplit_buffer )
{
dispatch opencl_kernel_priority_sum ( 1, 1, 1 ) args(
state.build_globals,
presplit_buffer,
estimate.numPrimitivesToSplit / 2 );
}
metakernel perform_presplits(
MKBuilderState state,
MKSizeEstimate estimate,
qword presplit_buffer,
dword numHwThreads )
{
dispatch opencl_kernel_perform_presplits ( numHwThreads, 1, 1 ) args(
state.build_globals,
state.bvh_buffer,
state.build_primref_buffer,
presplit_buffer,
state.bvh_buffer,
state.geomDesc_buffer,
estimate.numPrimitivesToSplit / 2 );
}
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