293 lines
13 KiB
C#
293 lines
13 KiB
C#
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/*
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* Copyright (c) 2020, NVIDIA CORPORATION. All rights reserved.
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*
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* NVIDIA CORPORATION and its licensors retain all intellectual property
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* and proprietary rights in and to this software, related documentation
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* and any modifications thereto. Any use, reproduction, disclosure or
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* distribution of this software and related documentation without an express
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* license agreement from NVIDIA CORPORATION is strictly prohibited.
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*/
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using System;
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using System.Collections;
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using System.Runtime.InteropServices;
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using UnityEngine;
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using UnityEngine.Rendering;
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using NVStreamline;
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namespace NVStreamline
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{
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[AddComponentMenu("NVIDIA/Streamline Reflex Builtin & HDRP")]
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public class StreamlineReflex : MonoBehaviour
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{
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[Tooltip("Is this the first camera to be rendered")]
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public bool isFirstCamera = true;
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private bool isAttachedBeforeRender = false;
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[Tooltip("Is this the last camera to be rendered")]
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public bool isLastCamera = true;
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private bool isAttachedAfterRender = false;
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[Tooltip("Minimum interval in microseconds for frame synchronization. 0 = no frame rate limit")]
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public uint intervalUs = 0;
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[Tooltip("NVIDIA Reflex Low Latency mode.")]
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public bool isLowLatencyMode = true;
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[Tooltip("NVIDIA Reflex Low Latency Boost")]
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public bool isLowLatencyBoost = false;
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[Tooltip("NVIDIA Reflex Low Latency Boost")]
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public bool useMarkersToOptimize = false;
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private static uint previousIntervalUs = 0;
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private static bool previousIsLowLatencyMode = false;
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private static bool previousIsLowLatencyBoost = true;
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private static bool previousUseMarkersToOptimize = false;
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private bool hasSimulationStarted = false;
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private CommandBuffer renderSubmitStart_CommandBuffer;
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private CommandBuffer renderSubmitEnd_CommandBuffer;
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public bool isIgnored = false; // Used by DLSS plugin for downsampled camera.
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private uint m_id;
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private bool m_reflexEnabled = false;
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private IEnumerator SleepCoroutine()
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{
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while (true)
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{
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yield return (new WaitForEndOfFrame());
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if (StreamlineReflexCore.NvReflex_Plugin_HasReceivedRenderEvent() != 0)
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{
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if (isLastCamera)
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{
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if ((previousIsLowLatencyMode != isLowLatencyMode) || (previousIntervalUs != intervalUs) || (previousIsLowLatencyBoost != isLowLatencyBoost) || (previousUseMarkersToOptimize != useMarkersToOptimize))
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{
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StreamlineReflexCore.NvReflex_Plugin_SetSleepMode(isLowLatencyMode, intervalUs, isLowLatencyBoost, useMarkersToOptimize);
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previousIsLowLatencyMode = isLowLatencyMode;
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previousIsLowLatencyBoost = isLowLatencyBoost;
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previousIntervalUs = intervalUs;
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previousUseMarkersToOptimize = useMarkersToOptimize;
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}
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if (isLowLatencyMode)
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{
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GL.Flush();
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StreamlineReflexCore.NvReflex_Plugin_Sleep((ulong)Time.frameCount);
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}
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}
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}
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}
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}
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private void Awake()
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{
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if (!StreamlineCore.IsFeatureSupported(StreamlineCore.Feature.eFeatureReflex))
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{
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Debug.Log("Reflex is not supported");
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return;
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}
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int id = StreamlineCore.CreateFeature(StreamlineCore.Feature.eFeatureReflex);
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if (id != 1) //CreateFeature must return 1 for Reflex
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{
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Debug.Log("Reflex Awake FAILED to get feature id");
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m_reflexEnabled = false;
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return;
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}
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m_id = (uint)id;
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m_reflexEnabled = true;
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renderSubmitStart_CommandBuffer = new CommandBuffer();
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renderSubmitStart_CommandBuffer.name = "Reflex RENDERSUBMIT_START";
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renderSubmitEnd_CommandBuffer = new CommandBuffer();
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renderSubmitEnd_CommandBuffer.name = "Reflex RENDERSUBMIT_END";
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}
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void OnDestroy()
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{
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StreamlineCore.DestroyFeature((int)m_id);
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}
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private void OnBeginFrameRendering(ScriptableRenderContext context, Camera[] camera)
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{
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context.ExecuteCommandBuffer(renderSubmitStart_CommandBuffer);
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}
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private void OnEndFrameRendering(ScriptableRenderContext context, Camera[] camera)
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{
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context.ExecuteCommandBuffer(renderSubmitEnd_CommandBuffer);
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context.Submit();
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}
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private void AfterPresent()
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{
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if (hasSimulationStarted == false)
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{
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int simStartEventID = StreamlineReflexCore.NvReflex_Plugin_GetEventIDForEvent((int)StreamlineReflexCore.NvReflex_LATENCY_MARKER_TYPE.SIMULATION_START);
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StreamlineReflexCore.SetLatencyMarker(simStartEventID, (ulong)Time.frameCount);
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hasSimulationStarted = true;
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}
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}
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public void FixedUpdate()
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{
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if (m_reflexEnabled)
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{
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if (isFirstCamera &&
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!isIgnored &&
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StreamlineReflexCore.NvReflex_Plugin_HasReceivedRenderEvent() != 0)
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{
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AfterPresent();
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}
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}
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}
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public void Update()
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{
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if (m_reflexEnabled)
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{
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if (isFirstCamera &&
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!isIgnored &&
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StreamlineReflexCore.NvReflex_Plugin_HasReceivedRenderEvent() != 0)
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{
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AfterPresent();
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int inputSampleEventID = StreamlineReflexCore.NvReflex_Plugin_GetEventIDForEvent((int)StreamlineReflexCore.NvReflex_LATENCY_MARKER_TYPE.INPUT_SAMPLE);
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StreamlineReflexCore.SetLatencyMarker(inputSampleEventID, (ulong)Time.frameCount);
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if (Input.GetKeyUp(KeyCode.F13))
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{
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StreamlineReflexCore.PCLatencyPing();
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}
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if (Input.GetMouseButtonDown(0))
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{
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StreamlineReflexCore.TriggerFlash();
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}
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}
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}
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}
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private void AttachDetachCommandBuffers()
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{
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if ((renderSubmitStart_CommandBuffer != null) & (renderSubmitEnd_CommandBuffer != null))
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{
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Camera camComponent = this.GetComponent<Camera>();
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bool shouldFirstCameraBeAttached = (isFirstCamera & !isIgnored & enabled);
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bool shouldLastCameraBeAttached = (isLastCamera & /*!isIgnored &*/ enabled);
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if (shouldFirstCameraBeAttached != isAttachedBeforeRender)
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{
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if (shouldFirstCameraBeAttached)
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{
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// Send renderSubmitStart_CommandBuffer on BeforeDepthTexture, BeforeForwardOpaque and BeforeGBuffer events. This ensures whatever configuration the Legacy pipeline is using
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// with regard to 2D/3D and Deferred/Rendering the event will be sent. The plugin filters the SubmitStart event and only processes the first that occurs.
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var oldBDCmdBuffers = camComponent.GetCommandBuffers(CameraEvent.BeforeDepthTexture);
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var oldBOCmdBuffers = camComponent.GetCommandBuffers(CameraEvent.BeforeForwardOpaque);
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var oldBDGmdBuffers = camComponent.GetCommandBuffers(CameraEvent.BeforeGBuffer);
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camComponent.RemoveCommandBuffers(CameraEvent.BeforeDepthTexture);
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camComponent.RemoveCommandBuffers(CameraEvent.BeforeForwardOpaque);
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camComponent.RemoveCommandBuffers(CameraEvent.BeforeGBuffer);
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camComponent.AddCommandBuffer(CameraEvent.BeforeDepthTexture, renderSubmitStart_CommandBuffer);
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camComponent.AddCommandBuffer(CameraEvent.BeforeForwardOpaque, renderSubmitStart_CommandBuffer);
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camComponent.AddCommandBuffer(CameraEvent.BeforeGBuffer, renderSubmitStart_CommandBuffer);
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foreach (var cmdBuff in oldBDCmdBuffers)
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{
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camComponent.AddCommandBuffer(CameraEvent.BeforeDepthTexture, cmdBuff);
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}
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foreach (var cmdBuff in oldBOCmdBuffers)
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{
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camComponent.AddCommandBuffer(CameraEvent.BeforeForwardOpaque, cmdBuff);
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}
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foreach (var cmdBuff in oldBDGmdBuffers)
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{
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camComponent.AddCommandBuffer(CameraEvent.BeforeGBuffer, cmdBuff);
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}
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#if UNITY_2019_1_OR_NEWER
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RenderPipelineManager.beginFrameRendering += OnBeginFrameRendering;
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#endif
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}
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else
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{
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camComponent.RemoveCommandBuffer(CameraEvent.BeforeDepthTexture, renderSubmitStart_CommandBuffer);
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camComponent.RemoveCommandBuffer(CameraEvent.BeforeForwardOpaque, renderSubmitStart_CommandBuffer);
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camComponent.RemoveCommandBuffer(CameraEvent.BeforeGBuffer, renderSubmitStart_CommandBuffer);
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#if UNITY_2019_1_OR_NEWER
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RenderPipelineManager.beginFrameRendering -= OnBeginFrameRendering;
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#endif
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}
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isAttachedBeforeRender = shouldFirstCameraBeAttached;
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}
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if (shouldLastCameraBeAttached != isAttachedAfterRender)
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{
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if (shouldLastCameraBeAttached)
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{
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camComponent.AddCommandBuffer(CameraEvent.AfterEverything, renderSubmitEnd_CommandBuffer);
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#if UNITY_2019_1_OR_NEWER
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RenderPipelineManager.endFrameRendering += OnEndFrameRendering;
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#endif
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}
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else
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{
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camComponent.RemoveCommandBuffer(CameraEvent.AfterEverything, renderSubmitEnd_CommandBuffer);
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#if UNITY_2019_1_OR_NEWER
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RenderPipelineManager.endFrameRendering -= OnEndFrameRendering;
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#endif
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}
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isAttachedAfterRender = shouldLastCameraBeAttached;
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}
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}
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}
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void OnEnable()
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{
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if (m_reflexEnabled)
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{
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AttachDetachCommandBuffers();
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StartCoroutine(SleepCoroutine());
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}
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}
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void OnDisable()
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{
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if (m_reflexEnabled)
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{
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AttachDetachCommandBuffers();
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StopCoroutine(SleepCoroutine());
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}
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}
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private void LateUpdate()
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{
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if (m_reflexEnabled)
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{
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AttachDetachCommandBuffers();
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if (isFirstCamera & !isIgnored)
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{
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if (hasSimulationStarted &&
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StreamlineReflexCore.NvReflex_Plugin_HasReceivedRenderEvent() != 0)
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{
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int simEndEventID = StreamlineReflexCore.NvReflex_Plugin_GetEventIDForEvent((int)StreamlineReflexCore.NvReflex_LATENCY_MARKER_TYPE.SIMULATION_END);
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StreamlineReflexCore.SetLatencyMarker(simEndEventID, (ulong)Time.frameCount);
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hasSimulationStarted = false;
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}
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int startEventID = StreamlineReflexCore.NvReflex_Plugin_GetEventIDForEvent((int)StreamlineReflexCore.NvReflex_LATENCY_MARKER_TYPE.RENDERSUBMIT_START);
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renderSubmitStart_CommandBuffer.Clear();
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renderSubmitStart_CommandBuffer.IssuePluginEventAndData(StreamlineReflexCore.NvReflex_Plugin_GetRenderEventAndDataFunc(), startEventID, (IntPtr)(ulong)Time.frameCount);
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}
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if (isLastCamera /*& !isIgnored*/)
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{
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int endEventID = StreamlineReflexCore.NvReflex_Plugin_GetEventIDForEvent((int)StreamlineReflexCore.NvReflex_LATENCY_MARKER_TYPE.RENDERSUBMIT_END);
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renderSubmitEnd_CommandBuffer.Clear();
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renderSubmitEnd_CommandBuffer.IssuePluginEventAndData(StreamlineReflexCore.NvReflex_Plugin_GetRenderEventAndDataFunc(), endEventID, (IntPtr)(ulong)Time.frameCount);
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endEventID = StreamlineReflexCore.NvReflex_Plugin_GetEventIDForEvent((int)StreamlineReflexCore.NvReflex_LATENCY_MARKER_TYPE.PRESENT_START);
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renderSubmitEnd_CommandBuffer.IssuePluginEventAndData(StreamlineReflexCore.NvReflex_Plugin_GetRenderEventAndDataFunc(), endEventID, (IntPtr)(ulong)Time.frameCount);
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endEventID = StreamlineReflexCore.NvReflex_Plugin_GetEventIDForEvent((int)StreamlineReflexCore.NvReflex_LATENCY_MARKER_TYPE.PRESENT_END);
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renderSubmitEnd_CommandBuffer.IssuePluginEventAndData(StreamlineReflexCore.NvReflex_Plugin_GetRenderEventAndDataFunc(), endEventID, (IntPtr)(ulong)Time.frameCount);
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}
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}
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}
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}
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}
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