// Unity C# reference source
// Copyright (c) Unity Technologies. For terms of use, see
// https://unity3d.com/legal/licenses/Unity_Reference_Only_License

using System;
using System.Collections.Generic;
using UnityEngine.Scripting;
using UnityEngine.Scripting.APIUpdating;
using UnityEngine.Bindings;

namespace UnityEngine.PlayerLoop
{
 [RequiredByNativeCode]
 [MovedFrom("UnityEngine.Experimental.PlayerLoop")]
 public struct Initialization
 {
 [RequiredByNativeCode]
 public struct PlayerUpdateTime {}
 [RequiredByNativeCode]
 public struct UpdateCameraMotionVectors {}
 [RequiredByNativeCode]
 public struct DirectorSampleTime {}
 [RequiredByNativeCode]
 public struct AsyncUploadTimeSlicedUpdate {}
 [RequiredByNativeCode]
 public struct SynchronizeState {}
 [RequiredByNativeCode]
 public struct SynchronizeInputs {}
 [RequiredByNativeCode]
 public struct XREarlyUpdate {}
 }

 [RequiredByNativeCode]
 [MovedFrom("UnityEngine.Experimental.PlayerLoop")]
 public struct EarlyUpdate
 {
 [RequiredByNativeCode]
 public struct PollPlayerConnection {}
 [RequiredByNativeCode]
 public struct ProfilerStartFrame {}
 [RequiredByNativeCode]
 public struct PollHtcsPlayerConnection {}
 [RequiredByNativeCode]
 public struct GpuTimestamp {}
 [RequiredByNativeCode]
 public struct AnalyticsCoreStatsUpdate {}
 [RequiredByNativeCode]
 public struct UnityWebRequestUpdate {}
 [RequiredByNativeCode]
 public struct UpdateStreamingManager {}
 [RequiredByNativeCode]
 public struct ExecuteMainThreadJobs {}
 [RequiredByNativeCode]
 public struct ProcessMouseInWindow {}
 [RequiredByNativeCode]
 public struct ClearIntermediateRenderers {}
 [RequiredByNativeCode]
 public struct ClearLines {}
 [RequiredByNativeCode]
 public struct PresentBeforeUpdate {}
 [RequiredByNativeCode]
 public struct ResetFrameStatsAfterPresent {}
 [RequiredByNativeCode]
 public struct UpdateAsyncReadbackManager {}
 [RequiredByNativeCode]
 public struct UpdateTextureStreamingManager {}
 [RequiredByNativeCode]
 public struct UpdatePreloading {}
 [RequiredByNativeCode]
 public struct RendererNotifyInvisible {}
 [RequiredByNativeCode]
 public struct PlayerCleanupCachedData {}
 [RequiredByNativeCode]
 public struct UpdateMainGameViewRect {}
 [RequiredByNativeCode]
 public struct UpdateCanvasRectTransform {}
 [RequiredByNativeCode]
 public struct UpdateInputManager {}
 [RequiredByNativeCode]
 public struct ProcessRemoteInput {}
 [RequiredByNativeCode]
 public struct XRUpdate {}
 [RequiredByNativeCode]
 public struct ScriptRunDelayedStartupFrame {}
 [RequiredByNativeCode]
 public struct UpdateKinect {}
 [RequiredByNativeCode]
 public struct DeliverIosPlatformEvents {}
 [RequiredByNativeCode]
 public struct DispatchEventQueueEvents {}
 [RequiredByNativeCode]
 public struct PhysicsResetInterpolatedTransformPosition {}
 [RequiredByNativeCode]
 public struct SpriteAtlasManagerUpdate {}
 [RequiredByNativeCode]
 [Obsolete("TangoUpdate has been deprecated. Use ARCoreUpdate instead (UnityUpgradable) -> UnityEngine.PlayerLoop.EarlyUpdate/ARCoreUpdate", false)]
 public struct TangoUpdate {}
 [RequiredByNativeCode]
 public struct ARCoreUpdate {}
 [RequiredByNativeCode]
 public struct PerformanceAnalyticsUpdate {}
 }
 [RequiredByNativeCode]
 [MovedFrom("UnityEngine.Experimental.PlayerLoop")]
 public struct FixedUpdate
 {
 [RequiredByNativeCode]
 public struct ClearLines {}
 [RequiredByNativeCode]
 public struct DirectorFixedSampleTime {}
 [RequiredByNativeCode]
 public struct AudioFixedUpdate {}
 [RequiredByNativeCode]
 public struct ScriptRunBehaviourFixedUpdate {}
 [RequiredByNativeCode]
 public struct DirectorFixedUpdate {}
 [RequiredByNativeCode]
 public struct LegacyFixedAnimationUpdate {}
 [RequiredByNativeCode]
 public struct XRFixedUpdate {}
 [RequiredByNativeCode]
 public struct PhysicsFixedUpdate {}
 [RequiredByNativeCode]
 public struct Physics2DFixedUpdate {}
 [RequiredByNativeCode]
 public struct DirectorFixedUpdatePostPhysics {}
 [RequiredByNativeCode]
 public struct ScriptRunDelayedFixedFrameRate {}
 [RequiredByNativeCode]
 public struct NewInputFixedUpdate {}
 }
 [RequiredByNativeCode]
 [MovedFrom("UnityEngine.Experimental.PlayerLoop")]
 public struct PreUpdate
 {
 [RequiredByNativeCode]
 public struct PhysicsUpdate {}
 [RequiredByNativeCode]
 public struct Physics2DUpdate {}
 [RequiredByNativeCode]
 public struct CheckTexFieldInput {}
 [RequiredByNativeCode]
 public struct IMGUISendQueuedEvents {}
 [RequiredByNativeCode]
 public struct SendMouseEvents {}
 [RequiredByNativeCode]
 public struct AIUpdate {}
 [RequiredByNativeCode]
 public struct WindUpdate {}
 [RequiredByNativeCode]
 public struct UpdateVideo {}
 [RequiredByNativeCode]
 public struct NewInputUpdate {}
 }
 [RequiredByNativeCode]
 [MovedFrom("UnityEngine.Experimental.PlayerLoop")]
 public struct Update
 {
 [RequiredByNativeCode]
 public struct ScriptRunBehaviourUpdate {}
 [RequiredByNativeCode]
 public struct DirectorUpdate {}
 [RequiredByNativeCode]
 public struct ScriptRunDelayedDynamicFrameRate {}
 [RequiredByNativeCode]
 public struct ScriptRunDelayedTasks {}
 }
 [RequiredByNativeCode]
 [MovedFrom("UnityEngine.Experimental.PlayerLoop")]
 public struct PreLateUpdate
 {
 [RequiredByNativeCode]
 public struct AIUpdatePostScript {}
 [RequiredByNativeCode]
 public struct DirectorUpdateAnimationBegin {}
 [RequiredByNativeCode]
 public struct LegacyAnimationUpdate {}
 [RequiredByNativeCode]
 public struct DirectorUpdateAnimationEnd {}
 [RequiredByNativeCode]
 public struct DirectorDeferredEvaluate {}
 [RequiredByNativeCode]
 public struct UpdateNetworkManager {}
 [RequiredByNativeCode]
 public struct UpdateMasterServerInterface {}
 [RequiredByNativeCode]
 public struct UNetUpdate {}
 [RequiredByNativeCode]
 public struct EndGraphicsJobsAfterScriptUpdate {}
 [RequiredByNativeCode]
 public struct ParticleSystemBeginUpdateAll {}
 [RequiredByNativeCode]
 public struct ScriptRunBehaviourLateUpdate {}
 [RequiredByNativeCode]
 public struct ConstraintManagerUpdate {}
 }
 [RequiredByNativeCode]
 [MovedFrom("UnityEngine.Experimental.PlayerLoop")]
 public struct PostLateUpdate
 {
 [RequiredByNativeCode]
 public struct PlayerSendFrameStarted {}
 [RequiredByNativeCode]
 public struct UpdateRectTransform {}
 [RequiredByNativeCode]
 public struct UpdateCanvasRectTransform {}
 [RequiredByNativeCode]
 public struct PlayerUpdateCanvases {}
 [RequiredByNativeCode]
 public struct UpdateAudio {}
 [RequiredByNativeCode]
 public struct UpdateVideo {}
 [RequiredByNativeCode]
 public struct DirectorLateUpdate {}
 [RequiredByNativeCode]
 public struct ScriptRunDelayedDynamicFrameRate {}
 [RequiredByNativeCode]
 public struct VFXUpdate {}
 [RequiredByNativeCode]
 public struct ParticleSystemEndUpdateAll {}
 [RequiredByNativeCode]
 public struct EndGraphicsJobsAfterScriptLateUpdate {}
 [RequiredByNativeCode]
 public struct UpdateSubstance {}
 [RequiredByNativeCode]
 public struct UpdateCustomRenderTextures {}
 [RequiredByNativeCode]
 public struct UpdateAllRenderers {}
 [RequiredByNativeCode]
 public struct UpdateLightProbeProxyVolumes {}
 [RequiredByNativeCode]
 public struct EnlightenRuntimeUpdate {}
 [RequiredByNativeCode]
 public struct UpdateAllSkinnedMeshes {}
 [RequiredByNativeCode]
 public struct ProcessWebSendMessages {}
 [RequiredByNativeCode]
 public struct SortingGroupsUpdate {}
 [RequiredByNativeCode]
 public struct UpdateVideoTextures {}
 [RequiredByNativeCode]
 public struct DirectorRenderImage {}
 [RequiredByNativeCode]
 public struct PlayerEmitCanvasGeometry {}
 [RequiredByNativeCode]
 public struct FinishFrameRendering {}
 [RequiredByNativeCode]
 public struct BatchModeUpdate {}
 [RequiredByNativeCode]
 public struct PlayerSendFrameComplete {}
 [RequiredByNativeCode]
 public struct UpdateCaptureScreenshot {}
 [RequiredByNativeCode]
 public struct PresentAfterDraw {}
 [RequiredByNativeCode]
 public struct ClearImmediateRenderers {}
 [RequiredByNativeCode]
 public struct XRPostPresent {}
 [RequiredByNativeCode]
 public struct UpdateResolution {}
 [RequiredByNativeCode]
 public struct InputEndFrame {}
 [RequiredByNativeCode]
 public struct GUIClearEvents {}
 [RequiredByNativeCode]
 public struct ShaderHandleErrors {}
 [RequiredByNativeCode]
 public struct ResetInputAxis {}
 [RequiredByNativeCode]
 public struct ThreadedLoadingDebug {}
 [RequiredByNativeCode]
 public struct ProfilerSynchronizeStats {}
 [RequiredByNativeCode]
 public struct MemoryFrameMaintenance {}
 [RequiredByNativeCode]
 public struct ExecuteGameCenterCallbacks {}
 [RequiredByNativeCode]
 public struct ProfilerEndFrame {}
 [RequiredByNativeCode]
 public struct PlayerSendFramePostPresent {}
 [RequiredByNativeCode]
 public struct PhysicsSkinnedClothBeginUpdate {}
 [RequiredByNativeCode]
 public struct PhysicsSkinnedClothFinishUpdate {}
 [RequiredByNativeCode]
 public struct TriggerEndOfFrameCallbacks {}
 }
}

namespace UnityEngine.LowLevel
{
 [NativeType(Header = "Runtime/Misc/PlayerLoop.h")]
 [RequiredByNativeCode]
 [MovedFrom("UnityEngine.Experimental.LowLevel")]
 struct PlayerLoopSystemInternal
 {
 public Type type;
 public PlayerLoopSystem.UpdateFunction updateDelegate;
 public IntPtr updateFunction;
 public IntPtr loopConditionFunction;
 public int numSubSystems;
 }

 [MovedFrom("UnityEngine.Experimental.LowLevel")]
 public struct PlayerLoopSystem
 {
 public Type type;
 public PlayerLoopSystem[] subSystemList;
 public UpdateFunction updateDelegate;
 public IntPtr updateFunction;
 public IntPtr loopConditionFunction;

 public delegate void UpdateFunction();
 }

 [MovedFrom("UnityEngine.Experimental.LowLevel")]
 public class PlayerLoop
 {
 public static PlayerLoopSystem GetDefaultPlayerLoop()
 {
 var intSys = GetDefaultPlayerLoopInternal();
 var offset = 0;
 return InternalToPlayerLoopSystem(intSys, ref offset);
 }

 public static PlayerLoopSystem GetCurrentPlayerLoop()
 {
 var intSys = GetCurrentPlayerLoopInternal();
 var offset = 0;
 return InternalToPlayerLoopSystem(intSys, ref offset);
 }

 public static void SetPlayerLoop(PlayerLoopSystem loop)
 {
 var intSys = new List<PlayerLoopSystemInternal>();
 PlayerLoopSystemToInternal(loop, ref intSys);
 SetPlayerLoopInternal(intSys.ToArray());
 }

 static int PlayerLoopSystemToInternal(PlayerLoopSystem sys, ref List<PlayerLoopSystemInternal> internalSys)
 {
 var idx = internalSys.Count;
 var newSys = new PlayerLoopSystemInternal
 {
 type = sys.type,
 updateDelegate = sys.updateDelegate,
 updateFunction = sys.updateFunction,
 loopConditionFunction = sys.loopConditionFunction,
 numSubSystems = 0
 };
 internalSys.Add(newSys);
 if (sys.subSystemList != null)
 {
 for (int i = 0; i < sys.subSystemList.Length; ++i)
 {
 newSys.numSubSystems += PlayerLoopSystemToInternal(sys.subSystemList[i], ref internalSys);
 }
 }
 internalSys[idx] = newSys;
 return newSys.numSubSystems + 1;
 }

 static PlayerLoopSystem InternalToPlayerLoopSystem(PlayerLoopSystemInternal[] internalSys, ref int offset)
 {
 var sys = new PlayerLoopSystem
 {
 type = internalSys[offset].type,
 updateDelegate = internalSys[offset].updateDelegate,
 updateFunction = internalSys[offset].updateFunction,
 loopConditionFunction = internalSys[offset].loopConditionFunction,
 subSystemList = null
 };

 var idx = offset++;
 if (internalSys[idx].numSubSystems > 0)
 {
 var subsys = new List<PlayerLoopSystem>();
 while (offset <= idx + internalSys[idx].numSubSystems)
 subsys.Add(InternalToPlayerLoopSystem(internalSys, ref offset));
 sys.subSystemList = subsys.ToArray();
 }

 return sys;
 }

 [NativeMethod(IsFreeFunction = true)]
 private static extern PlayerLoopSystemInternal[] GetDefaultPlayerLoopInternal();
 [NativeMethod(IsFreeFunction = true)]
 private static extern PlayerLoopSystemInternal[] GetCurrentPlayerLoopInternal();
 [NativeMethod(IsFreeFunction = true)]
 private static extern void SetPlayerLoopInternal(PlayerLoopSystemInternal[] loop);
 }
}