85 lines
3.6 KiB
C#
85 lines
3.6 KiB
C#
#if !UNITY_JOBS_LESS_THAN_0_7
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using System;
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using Unity.Jobs.LowLevel.Unsafe;
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using Unity.Collections.LowLevel.Unsafe;
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using UnityEngine.Scripting;
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using System.Diagnostics;
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using Unity.Burst;
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namespace Unity.Jobs
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{
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[JobProducerType(typeof(IJobParallelForBatchExtensions.JobParallelForBatchProducer<>))]
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public interface IJobParallelForBatch
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{
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void Execute(int startIndex, int count);
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}
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public static class IJobParallelForBatchExtensions
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{
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internal struct JobParallelForBatchProducer<T> where T : struct, IJobParallelForBatch
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{
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internal static readonly SharedStatic<IntPtr> jobReflectionData = SharedStatic<IntPtr>.GetOrCreate<JobParallelForBatchProducer<T>>();
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[Preserve]
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internal static void Initialize()
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{
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if (jobReflectionData.Data == IntPtr.Zero)
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jobReflectionData.Data = JobsUtility.CreateJobReflectionData(typeof(T), (ExecuteJobFunction)Execute);
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}
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internal delegate void ExecuteJobFunction(ref T jobData, IntPtr additionalPtr, IntPtr bufferRangePatchData, ref JobRanges ranges, int jobIndex);
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public unsafe static void Execute(ref T jobData, IntPtr additionalPtr, IntPtr bufferRangePatchData, ref JobRanges ranges, int jobIndex)
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{
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while (true)
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{
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if (!JobsUtility.GetWorkStealingRange(
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ref ranges,
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jobIndex, out int begin, out int end))
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return;
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#if ENABLE_UNITY_COLLECTIONS_CHECKS
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JobsUtility.PatchBufferMinMaxRanges(bufferRangePatchData, UnsafeUtility.AddressOf(ref jobData), begin, end - begin);
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#endif
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jobData.Execute(begin, end - begin);
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}
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}
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}
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/// <summary>
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/// This method is only to be called by automatically generated setup code.
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/// </summary>
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/// <typeparam name="T"></typeparam>
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public static void EarlyJobInit<T>()
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where T : struct, IJobParallelForBatch
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{
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JobParallelForBatchProducer<T>.Initialize();
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}
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[Conditional("ENABLE_UNITY_COLLECTIONS_CHECKS")]
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private static void CheckReflectionDataCorrect(IntPtr reflectionData)
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{
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if (reflectionData == IntPtr.Zero)
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throw new InvalidOperationException("Reflection data was not set up by an Initialize() call");
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}
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public static unsafe JobHandle ScheduleBatch<T>(this T jobData, int arrayLength, int minIndicesPerJobCount,
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JobHandle dependsOn = new JobHandle()) where T : struct, IJobParallelForBatch
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{
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var reflectionData = JobParallelForBatchProducer<T>.jobReflectionData.Data;
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CheckReflectionDataCorrect(reflectionData);
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var scheduleParams = new JobsUtility.JobScheduleParameters(UnsafeUtility.AddressOf(ref jobData), reflectionData, dependsOn, ScheduleMode.Parallel);
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return JobsUtility.ScheduleParallelFor(ref scheduleParams, arrayLength, minIndicesPerJobCount);
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}
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public static unsafe void RunBatch<T>(this T jobData, int arrayLength) where T : struct, IJobParallelForBatch
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{
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var reflectionData = JobParallelForBatchProducer<T>.jobReflectionData.Data;
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CheckReflectionDataCorrect(reflectionData);
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var scheduleParams = new JobsUtility.JobScheduleParameters(UnsafeUtility.AddressOf(ref jobData), reflectionData, new JobHandle(), ScheduleMode.Run);
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JobsUtility.ScheduleParallelFor(ref scheduleParams, arrayLength, arrayLength);
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}
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}
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}
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#endif
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