380 lines
13 KiB
C#
380 lines
13 KiB
C#
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// TProfilingSampler<TEnum>.samples should just be an array. Unfortunately, Enum cannot be converted to int without generating garbage.
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// This could be worked around by using Unsafe but it's not available at the moment.
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// So in the meantime we use a Dictionary with a perf hit...
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//#define USE_UNSAFE
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#if UNITY_2020_1_OR_NEWER
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#define UNITY_USE_RECORDER
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#endif
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using System;
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using System.Linq;
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using System.Collections.Generic;
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using UnityEngine.Profiling;
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namespace UnityEngine.Rendering
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{
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class TProfilingSampler<TEnum> : ProfilingSampler where TEnum : Enum
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{
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#if USE_UNSAFE
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internal static TProfilingSampler<TEnum>[] samples;
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#else
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internal static Dictionary<TEnum, TProfilingSampler<TEnum>> samples = new Dictionary<TEnum, TProfilingSampler<TEnum>>();
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#endif
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static TProfilingSampler()
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{
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var names = Enum.GetNames(typeof(TEnum));
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#if USE_UNSAFE
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var values = Enum.GetValues(typeof(TEnum)).Cast<int>().ToArray();
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samples = new TProfilingSampler<TEnum>[values.Max() + 1];
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#else
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var values = Enum.GetValues(typeof(TEnum));
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#endif
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for (int i = 0; i < names.Length; i++)
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{
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var sample = new TProfilingSampler<TEnum>(names[i]);
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#if USE_UNSAFE
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samples[values[i]] = sample;
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#else
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samples.Add((TEnum)values.GetValue(i), sample);
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#endif
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}
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}
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public TProfilingSampler(string name)
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: base(name)
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{
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}
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}
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/// <summary>
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/// Wrapper around CPU and GPU profiling samplers.
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/// Use this along ProfilingScope to profile a piece of code.
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/// </summary>
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public class ProfilingSampler
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{
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/// <summary>
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/// Get the sampler for the corresponding enumeration value.
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/// </summary>
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/// <typeparam name="TEnum">Type of the enumeration.</typeparam>
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/// <param name="marker">Enumeration value.</param>
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/// <returns>The profiling sampler for the given enumeration value.</returns>
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public static ProfilingSampler Get<TEnum>(TEnum marker)
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where TEnum : Enum
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{
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#if USE_UNSAFE
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return TProfilingSampler<TEnum>.samples[Unsafe.As<TEnum, int>(ref marker)];
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#else
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TProfilingSampler<TEnum>.samples.TryGetValue(marker, out var sampler);
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return sampler;
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#endif
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}
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/// <summary>
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/// Constructor.
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/// </summary>
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/// <param name="name">Name of the profiling sampler.</param>
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public ProfilingSampler(string name)
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{
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// Caution: Name of sampler MUST not match name provide to cmd.BeginSample(), otherwise
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// we get a mismatch of marker when enabling the profiler.
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#if UNITY_USE_RECORDER
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sampler = CustomSampler.Create(name, true); // Event markers, command buffer CPU profiling and GPU profiling
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#else
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// In this case, we need to use the BeginSample(string) API, since it creates a new sampler by that name under the hood,
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// we need rename this sampler to not clash with the implicit one (it won't be used in this case)
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sampler = CustomSampler.Create($"Dummy_{name}");
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#endif
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inlineSampler = CustomSampler.Create($"Inl_{name}"); // Profiles code "immediately"
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this.name = name;
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#if UNITY_USE_RECORDER
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m_Recorder = sampler.GetRecorder();
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m_Recorder.enabled = false;
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m_InlineRecorder = inlineSampler.GetRecorder();
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m_InlineRecorder.enabled = false;
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#endif
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}
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/// <summary>
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/// Begin the profiling block.
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/// </summary>
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/// <param name="cmd">Command buffer used by the profiling block.</param>
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public void Begin(CommandBuffer cmd)
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{
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if (cmd != null)
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#if UNITY_USE_RECORDER
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if (sampler != null && sampler.isValid)
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cmd.BeginSample(sampler);
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else
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cmd.BeginSample(name);
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#else
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cmd.BeginSample(name);
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#endif
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inlineSampler?.Begin();
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}
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/// <summary>
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/// End the profiling block.
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/// </summary>
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/// <param name="cmd">Command buffer used by the profiling block.</param>
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public void End(CommandBuffer cmd)
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{
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if (cmd != null)
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#if UNITY_USE_RECORDER
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if (sampler != null && sampler.isValid)
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cmd.EndSample(sampler);
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else
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cmd.EndSample(name);
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#else
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m_Cmd.EndSample(name);
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#endif
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inlineSampler?.End();
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}
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internal bool IsValid() { return (sampler != null && inlineSampler != null); }
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internal CustomSampler sampler { get; private set; }
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internal CustomSampler inlineSampler { get; private set; }
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/// <summary>
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/// Name of the Profiling Sampler
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/// </summary>
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public string name { get; private set; }
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#if UNITY_USE_RECORDER
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Recorder m_Recorder;
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Recorder m_InlineRecorder;
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#endif
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/// <summary>
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/// Set to true to enable recording of profiling sampler timings.
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/// </summary>
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public bool enableRecording
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{
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set
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{
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#if UNITY_USE_RECORDER
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m_Recorder.enabled = value;
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m_InlineRecorder.enabled = value;
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#endif
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}
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}
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#if UNITY_USE_RECORDER
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/// <summary>
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/// GPU Elapsed time in milliseconds.
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/// </summary>
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public float gpuElapsedTime => m_Recorder.enabled ? m_Recorder.gpuElapsedNanoseconds / 1000000.0f : 0.0f;
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/// <summary>
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/// Number of times the Profiling Sampler has hit on the GPU
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/// </summary>
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public int gpuSampleCount => m_Recorder.enabled ? m_Recorder.gpuSampleBlockCount : 0;
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/// <summary>
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/// CPU Elapsed time in milliseconds (Command Buffer execution).
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/// </summary>
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public float cpuElapsedTime => m_Recorder.enabled ? m_Recorder.elapsedNanoseconds / 1000000.0f : 0.0f;
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/// <summary>
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/// Number of times the Profiling Sampler has hit on the CPU in the command buffer.
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/// </summary>
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public int cpuSampleCount => m_Recorder.enabled ? m_Recorder.sampleBlockCount : 0;
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/// <summary>
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/// CPU Elapsed time in milliseconds (Direct execution).
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/// </summary>
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public float inlineCpuElapsedTime => m_InlineRecorder.enabled ? m_InlineRecorder.elapsedNanoseconds / 1000000.0f : 0.0f;
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/// <summary>
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/// Number of times the Profiling Sampler has hit on the CPU.
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/// </summary>
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public int inlineCpuSampleCount => m_InlineRecorder.enabled ? m_InlineRecorder.sampleBlockCount : 0;
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#else
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/// <summary>
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/// GPU Elapsed time in milliseconds.
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/// </summary>
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public float gpuElapsedTime => 0.0f;
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/// <summary>
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/// Number of times the Profiling Sampler has hit on the GPU
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/// </summary>
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public int gpuSampleCount => 0;
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/// <summary>
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/// CPU Elapsed time in milliseconds (Command Buffer execution).
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/// </summary>
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public float cpuElapsedTime => 0.0f;
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/// <summary>
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/// Number of times the Profiling Sampler has hit on the CPU in the command buffer.
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/// </summary>
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public int cpuSampleCount => 0;
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/// <summary>
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/// CPU Elapsed time in milliseconds (Direct execution).
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/// </summary>
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public float inlineCpuElapsedTime => 0.0f;
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/// <summary>
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/// Number of times the Profiling Sampler has hit on the CPU.
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/// </summary>
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public int inlineCpuSampleCount => 0;
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#endif
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// Keep the constructor private
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ProfilingSampler() { }
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}
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#if DEVELOPMENT_BUILD || UNITY_EDITOR
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/// <summary>
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/// Scoped Profiling markers
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/// </summary>
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public struct ProfilingScope : IDisposable
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{
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CommandBuffer m_Cmd;
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bool m_Disposed;
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ProfilingSampler m_Sampler;
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/// <summary>
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/// Profiling Scope constructor
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/// </summary>
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/// <param name="cmd">Command buffer used to add markers and compute execution timings.</param>
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/// <param name="sampler">Profiling Sampler to be used for this scope.</param>
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public ProfilingScope(CommandBuffer cmd, ProfilingSampler sampler)
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{
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// NOTE: Do not mix with named CommandBuffers.
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// Currently there's an issue which results in mismatched markers.
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// The named CommandBuffer will close its "profiling scope" on execution.
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// That will orphan ProfilingScope markers as the named CommandBuffer marker
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// is their "parent".
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// Resulting in following pattern:
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// exec(cmd.start, scope.start, cmd.end) and exec(cmd.start, scope.end, cmd.end)
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m_Cmd = cmd;
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m_Disposed = false;
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m_Sampler = sampler;
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m_Sampler?.Begin(m_Cmd);
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}
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/// <summary>
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/// Dispose pattern implementation
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/// </summary>
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public void Dispose()
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{
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Dispose(true);
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}
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// Protected implementation of Dispose pattern.
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void Dispose(bool disposing)
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{
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if (m_Disposed)
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return;
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// As this is a struct, it could have been initialized using an empty constructor so we
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// need to make sure `cmd` isn't null to avoid a crash. Switching to a class would fix
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// this but will generate garbage on every frame (and this struct is used quite a lot).
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if (disposing)
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{
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m_Sampler?.End(m_Cmd);
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}
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m_Disposed = true;
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}
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}
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#else
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/// <summary>
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/// Scoped Profiling markers
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/// </summary>
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public struct ProfilingScope : IDisposable
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{
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/// <summary>
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/// Profiling Scope constructor
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/// </summary>
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/// <param name="cmd">Command buffer used to add markers and compute execution timings.</param>
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/// <param name="sampler">Profiling Sampler to be used for this scope.</param>
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public ProfilingScope(CommandBuffer cmd, ProfilingSampler sampler)
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{
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}
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/// <summary>
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/// Dispose pattern implementation
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/// </summary>
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public void Dispose()
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{
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}
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}
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#endif
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/// <summary>
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/// Profiling Sampler class.
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/// </summary>
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[System.Obsolete("Please use ProfilingScope")]
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public struct ProfilingSample : IDisposable
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{
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readonly CommandBuffer m_Cmd;
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readonly string m_Name;
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bool m_Disposed;
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CustomSampler m_Sampler;
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/// <summary>
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/// Constructor
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/// </summary>
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/// <param name="cmd">Command Buffer.</param>
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/// <param name="name">Name of the profiling sample.</param>
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/// <param name="sampler">Custom sampler for CPU profiling.</param>
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public ProfilingSample(CommandBuffer cmd, string name, CustomSampler sampler = null)
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{
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m_Cmd = cmd;
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m_Name = name;
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m_Disposed = false;
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if (cmd != null && name != "")
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cmd.BeginSample(name);
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m_Sampler = sampler;
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m_Sampler?.Begin();
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}
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// Shortcut to string.Format() using only one argument (reduces Gen0 GC pressure)
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/// <summary>
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/// Constructor
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/// </summary>
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/// <param name="cmd">Command Buffer.</param>
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/// <param name="format">Formating of the profiling sample.</param>
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/// <param name="arg">Parameters for formating the name.</param>
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public ProfilingSample(CommandBuffer cmd, string format, object arg) : this(cmd, string.Format(format, arg))
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{
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}
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// Shortcut to string.Format() with variable amount of arguments - for performance critical
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// code you should pre-build & cache the marker name instead of using this
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/// <summary>
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/// Constructor.
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/// </summary>
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/// <param name="cmd">Command Buffer.</param>
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/// <param name="format">Formating of the profiling sample.</param>
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/// <param name="args">Parameters for formating the name.</param>
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public ProfilingSample(CommandBuffer cmd, string format, params object[] args) : this(cmd, string.Format(format, args))
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{
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}
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/// <summary>
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/// Dispose pattern implementation
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/// </summary>
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public void Dispose()
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{
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Dispose(true);
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}
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// Protected implementation of Dispose pattern.
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void Dispose(bool disposing)
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{
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if (m_Disposed)
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return;
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// As this is a struct, it could have been initialized using an empty constructor so we
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// need to make sure `cmd` isn't null to avoid a crash. Switching to a class would fix
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// this but will generate garbage on every frame (and this struct is used quite a lot).
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if (disposing)
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{
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if (m_Cmd != null && m_Name != "")
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m_Cmd.EndSample(m_Name);
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m_Sampler?.End();
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}
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m_Disposed = true;
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}
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}
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}
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