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GRL, or Graphics Library for Ray-tracing is a library we share with the Windows drivers for doing BVH builds on the GPU. It consists of a few headers shared between CL and C code, a bunch of CL kernels, and some GRL meta-kernels in their own format. Acked-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com> Acked-by: Caio Oliveira <caio.oliveira@intel.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/16970>
229 lines
7.5 KiB
Text
229 lines
7.5 KiB
Text
//
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// Copyright (C) 2009-2021 Intel Corporation
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//
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// SPDX-License-Identifier: MIT
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//
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//
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module build_primref;
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kernel_module primref_kernels ("bvh_build_primref.cl")
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{
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links lsc_intrinsics;
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kernel opencl_kernel_primrefs_from_DXR_instances < kernelFunction="primrefs_from_DXR_instances" >;
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kernel opencl_kernel_primrefs_from_DXR_instances_indirect < kernelFunction="primrefs_from_DXR_instances_indirect" >;
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kernel opencl_kernel_primrefs_from_DXR_instances_pointers < kernelFunction="primrefs_from_DXR_instances_pointers" >;
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kernel opencl_kernel_primrefs_from_DXR_instances_pointers_indirect < kernelFunction="primrefs_from_DXR_instances_pointers_indirect" >;
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kernel opencl_kernel_triangles_to_primrefs < kernelFunction="triangles_to_primrefs" >;
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kernel opencl_kernel_triangles_to_primrefs_indirect < kernelFunction="triangles_to_primrefs_indirect" >;
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kernel opencl_kernel_procedurals_to_primrefs < kernelFunction="procedurals_to_primrefs" >;
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kernel opencl_kernel_procedurals_to_primrefs_indirect < kernelFunction="procedurals_to_primrefs_indirect" >;
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}
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import struct MKBuilderState "structs.grl";
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import struct MKSizeEstimate "structs.grl";
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const PrimirefsFromInstances_GROUPSIZE = 16;
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metakernel buildPrimirefsFromInstances(
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qword instanceDescBuff,
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MKSizeEstimate estimate,
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MKBuilderState build_state,
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dword allowUpdate)
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{
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define num_groups ((estimate.numPrimitives + PrimirefsFromInstances_GROUPSIZE-1)/PrimirefsFromInstances_GROUPSIZE);
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dispatch opencl_kernel_primrefs_from_DXR_instances(num_groups,1,1) args(
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build_state.build_globals,
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build_state.bvh_buffer,
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instanceDescBuff,
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estimate.numPrimitives,
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build_state.build_primref_buffer,
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allowUpdate);
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}
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metakernel buildPrimirefsFromInstancesIndirect(
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qword instanceDescBuff,
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qword indirectBuildRangeInfo,
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MKBuilderState build_state,
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dword allowUpdate)
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{
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define num_groups REG0;
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define groupsize_1 REG1; // groupsize - 1
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define C_4 REG2;
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// init with primitiveCount
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num_groups = load_dword(indirectBuildRangeInfo);
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groupsize_1 = 15; // PrimirefsFromInstances_GROUPSIZE - 1
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C_4 = 4; // log_2(PrimirefsFromInstances_GROUPSIZE)
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num_groups = num_groups + groupsize_1;
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num_groups = num_groups >> C_4; // num_groups / PrimirefsFromInstances_GROUPSIZE;
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DISPATCHDIM_X = num_groups.lo;
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DISPATCHDIM_Y = 1;
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DISPATCHDIM_Z = 1;
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dispatch_indirect opencl_kernel_primrefs_from_DXR_instances_indirect args(
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build_state.build_globals,
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build_state.bvh_buffer,
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instanceDescBuff,
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indirectBuildRangeInfo,
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build_state.build_primref_buffer,
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allowUpdate);
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}
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metakernel buildPrimirefsFromInstancesArrOfPtrs(
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qword instanceDescPtrArrayBuff,
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MKSizeEstimate estimate,
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MKBuilderState build_state,
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dword allowUpdate)
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{
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define num_groups ((estimate.numPrimitives + PrimirefsFromInstances_GROUPSIZE-1)/PrimirefsFromInstances_GROUPSIZE);
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dispatch opencl_kernel_primrefs_from_DXR_instances_pointers(num_groups,1,1) args(
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build_state.build_globals,
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build_state.bvh_buffer,
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instanceDescPtrArrayBuff,
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estimate.numPrimitives,
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build_state.build_primref_buffer,
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allowUpdate);
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}
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metakernel buildPrimirefsFromInstancesArrOfPtrsIndirect(
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qword instanceDescPtrArrayBuff,
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qword indirectBuildRangeInfo,
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MKSizeEstimate estimate,
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MKBuilderState build_state,
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dword allowUpdate)
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{
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define num_groups REG0;
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define groupsize_1 REG1; // groupsize - 1
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define C_4 REG2;
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// init with primitiveCount
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num_groups = load_dword(indirectBuildRangeInfo);
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groupsize_1 = 15; // PrimirefsFromInstances_GROUPSIZE - 1
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C_4 = 4; // log_2(PrimirefsFromInstances_GROUPSIZE)
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num_groups = num_groups + groupsize_1;
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num_groups = num_groups >> C_4; // num_groups / PrimirefsFromInstances_GROUPSIZE;
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DISPATCHDIM_X = num_groups.lo;
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DISPATCHDIM_Y = 1;
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DISPATCHDIM_Z = 1;
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dispatch_indirect opencl_kernel_primrefs_from_DXR_instances_pointers_indirect args(
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build_state.build_globals,
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build_state.bvh_buffer,
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instanceDescPtrArrayBuff,
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build_state.build_primref_buffer,
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indirectBuildRangeInfo,
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allowUpdate);
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}
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metakernel primrefs_from_tris(
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MKBuilderState build_state,
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MKSizeEstimate estimate,
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qword geo_ptr,
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dword geom_id,
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dword geom_flags,
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dword num_prims)
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{
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define num_threads ((num_prims+15)/16);
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dispatch opencl_kernel_triangles_to_primrefs(num_threads,1,1) args(
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build_state.build_globals,
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build_state.bvh_buffer,
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build_state.build_primref_buffer,
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geo_ptr,
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(geom_id & 0x00ffffff) + (geom_flags<<24),
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num_prims);
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}
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metakernel primrefs_from_tris_indirect(
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MKBuilderState build_state,
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MKSizeEstimate estimate,
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qword geo_ptr,
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qword indirectBuildRangeInfo,
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dword geom_id,
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dword geom_flags)
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{
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define num_groups REG0;
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define groupsize_1 REG1; // groupsize - 1
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define C_4 REG2;
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// init with primitiveCount
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num_groups = load_dword(indirectBuildRangeInfo);
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groupsize_1 = 15; // PrimirefsFromInstances_GROUPSIZE - 1
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C_4 = 4; // log_2(PrimirefsFromInstances_GROUPSIZE)
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num_groups = num_groups + groupsize_1;
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num_groups = num_groups >> C_4; // num_groups / PrimirefsFromInstances_GROUPSIZE;
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DISPATCHDIM_X = num_groups.lo;
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DISPATCHDIM_Y = 1;
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DISPATCHDIM_Z = 1;
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dispatch_indirect opencl_kernel_triangles_to_primrefs_indirect args(
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build_state.build_globals,
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build_state.bvh_buffer,
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build_state.build_primref_buffer,
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geo_ptr,
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indirectBuildRangeInfo,
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(geom_id & 0x00ffffff) + (geom_flags << 24));
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}
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metakernel primrefs_from_proc(
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MKBuilderState build_state,
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MKSizeEstimate estimate,
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qword geo_ptr,
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dword geom_id,
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dword geom_flags,
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dword num_prims)
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{
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define num_threads ((num_prims+15)/16);
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dispatch opencl_kernel_procedurals_to_primrefs(num_threads,1,1) args(
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build_state.build_globals,
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build_state.bvh_buffer,
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build_state.build_primref_buffer,
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geo_ptr,
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(geom_id & 0x00ffffff) + (geom_flags<<24),
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num_prims);
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}
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metakernel primrefs_from_proc_indirect(
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MKBuilderState build_state,
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MKSizeEstimate estimate,
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qword geo_ptr,
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qword indirectBuildRangeInfo,
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dword geom_id,
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dword geom_flags)
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{
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define num_groups REG0;
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define groupsize_1 REG1; // groupsize - 1
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define C_4 REG2;
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// init with primitiveCount
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num_groups = load_dword(indirectBuildRangeInfo);
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groupsize_1 = 15; // PrimirefsFromInstances_GROUPSIZE - 1
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C_4 = 4; // log_2(PrimirefsFromInstances_GROUPSIZE)
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num_groups = num_groups + groupsize_1;
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num_groups = num_groups >> C_4; // num_groups / PrimirefsFromInstances_GROUPSIZE;
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DISPATCHDIM_X = num_groups.lo;
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DISPATCHDIM_Y = 1;
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DISPATCHDIM_Z = 1;
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dispatch_indirect opencl_kernel_procedurals_to_primrefs_indirect args(
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build_state.build_globals,
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build_state.bvh_buffer,
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build_state.build_primref_buffer,
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geo_ptr,
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indirectBuildRangeInfo,
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(geom_id & 0x00ffffff) + (geom_flags<<24));
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}
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