#if XR_COMPOSITION_LAYERS using UnityEngine.XR.OpenXR.NativeTypes; using Unity.XR.CompositionLayers; using Unity.XR.CompositionLayers.Extensions; using Unity.XR.CompositionLayers.Layers; using Unity.XR.CompositionLayers.Services; namespace UnityEngine.XR.OpenXR.CompositionLayers { //Default OpenXR Composition Layer - Quad Layer support internal class OpenXRQuadLayer : OpenXRCustomLayerHandler { protected override bool CreateSwapchain(CompositionLayerManager.LayerInfo layer, out SwapchainCreateInfo swapchainCreateInfo) { unsafe { var texturesExtension = layer.Layer.GetComponent(); if (texturesExtension == null || texturesExtension.enabled == false) { swapchainCreateInfo = default; return false; } switch (texturesExtension.sourceTexture) { case TexturesExtension.SourceTextureEnum.LocalTexture: { if (texturesExtension.LeftTexture == null) goto default; var xrCreateInfo = new XrSwapchainCreateInfo() { Type = (uint)XrStructureType.XR_TYPE_SWAPCHAIN_CREATE_INFO, Next = OpenXRLayerUtility.GetExtensionsChain(layer, CompositionLayerExtension.ExtensionTarget.Swapchain), CreateFlags = 0, UsageFlags = (ulong)(XrSwapchainUsageFlags.XR_SWAPCHAIN_USAGE_SAMPLED_BIT | XrSwapchainUsageFlags.XR_SWAPCHAIN_USAGE_COLOR_ATTACHMENT_BIT), Format = OpenXRLayerUtility.GetDefaultColorFormat(), SampleCount = 1, Width = (uint)texturesExtension.LeftTexture.width, Height = (uint)texturesExtension.LeftTexture.height, FaceCount = 1, ArraySize = 1, MipCount = (uint)texturesExtension.LeftTexture.mipmapCount, }; swapchainCreateInfo = new SwapchainCreateInfo(xrCreateInfo, isExternalSurface: false); return true; } case TexturesExtension.SourceTextureEnum.AndroidSurface: { #if UNITY_ANDROID var xrCreateInfo = new XrSwapchainCreateInfo() { Type = (uint)XrStructureType.XR_TYPE_SWAPCHAIN_CREATE_INFO, Next = OpenXRLayerUtility.GetExtensionsChain(layer, CompositionLayerExtension.ExtensionTarget.Swapchain), CreateFlags = 0, UsageFlags = (ulong)(XrSwapchainUsageFlags.XR_SWAPCHAIN_USAGE_SAMPLED_BIT | XrSwapchainUsageFlags.XR_SWAPCHAIN_USAGE_COLOR_ATTACHMENT_BIT), Format = 0, SampleCount = 0, Width = (uint)texturesExtension.Resolution.x, Height = (uint)texturesExtension.Resolution.y, FaceCount = 0, ArraySize = 0, MipCount = 0, }; swapchainCreateInfo = new SwapchainCreateInfo(xrCreateInfo, isExternalSurface: true); return true; #else goto default; #endif } default: swapchainCreateInfo = default; return false; } } } protected override bool CreateNativeLayer(CompositionLayerManager.LayerInfo layer, SwapchainCreatedOutput swapchainOutput, out XrCompositionLayerQuad nativeLayer) { unsafe { var texturesExtension = layer.Layer.GetComponent(); if (texturesExtension == null || texturesExtension.enabled == false) { nativeLayer = default; return false; } var data = layer.Layer.LayerData as QuadLayerData; var transform = layer.Layer.GetComponent(); int subImageWidth = 0; int subImageHeight = 0; switch (texturesExtension.sourceTexture) { case TexturesExtension.SourceTextureEnum.LocalTexture: { if (texturesExtension.LeftTexture != null) { subImageWidth = texturesExtension.LeftTexture.width; subImageHeight = texturesExtension.LeftTexture.height; } break; } case TexturesExtension.SourceTextureEnum.AndroidSurface: { subImageWidth = (int)texturesExtension.Resolution.x; subImageHeight = (int)texturesExtension.Resolution.y; break; } } var correctedSize = texturesExtension.CropToAspect ? FixAspectRatio(data, transform, subImageWidth, subImageHeight) : data.GetScaledSize(transform.lossyScale); nativeLayer = new XrCompositionLayerQuad() { Type = (uint)XrStructureType.XR_TYPE_COMPOSITION_LAYER_QUAD, Next = OpenXRLayerUtility.GetExtensionsChain(layer, CompositionLayerExtension.ExtensionTarget.Layer), LayerFlags = data.BlendType == BlendType.Premultiply ? XrCompositionLayerFlags.SourceAlpha : XrCompositionLayerFlags.SourceAlpha | XrCompositionLayerFlags.UnPremultipliedAlpha, Space = OpenXRLayerUtility.GetCurrentAppSpace(), EyeVisibility = 0, SubImage = new XrSwapchainSubImage() { Swapchain = swapchainOutput.handle, ImageRect = new XrRect2Di() { Offset = new XrOffset2Di() { X = 0, Y = 0 }, Extent = new XrExtent2Di() { Width = subImageWidth, Height = subImageHeight } }, ImageArrayIndex = 0 }, Pose = new XrPosef(OpenXRUtility.ComputePoseToWorldSpace(transform, CompositionLayerManager.mainCameraCache).position, OpenXRUtility.ComputePoseToWorldSpace(transform, CompositionLayerManager.mainCameraCache).rotation), Size = new XrExtent2Df() { Width = correctedSize.x, Height = correctedSize.y } }; return true; } } protected override bool ModifyNativeLayer(CompositionLayerManager.LayerInfo layerInfo, ref XrCompositionLayerQuad nativeLayer) { var texturesExtension = layerInfo.Layer.GetComponent(); if (texturesExtension == null || texturesExtension.enabled == false) return false; var data = layerInfo.Layer.LayerData as QuadLayerData; var transform = layerInfo.Layer.GetComponent(); nativeLayer.Pose = new XrPosef(OpenXRUtility.ComputePoseToWorldSpace(transform, CompositionLayerManager.mainCameraCache).position, OpenXRUtility.ComputePoseToWorldSpace(transform, CompositionLayerManager.mainCameraCache).rotation); int subImageWidth = 0; int subImageHeight = 0; switch (texturesExtension.sourceTexture) { case TexturesExtension.SourceTextureEnum.LocalTexture: { if (texturesExtension.LeftTexture != null) { subImageWidth = texturesExtension.LeftTexture.width; subImageHeight = texturesExtension.LeftTexture.height; } break; } case TexturesExtension.SourceTextureEnum.AndroidSurface: { subImageWidth = (int)texturesExtension.Resolution.x; subImageHeight = (int)texturesExtension.Resolution.y; break; } } nativeLayer.SubImage.ImageRect.Extent = new XrExtent2Di() { Width = subImageWidth, Height = subImageHeight }; var correctedSize = texturesExtension.CropToAspect ? FixAspectRatio(data, transform, subImageWidth, subImageHeight) : data.GetScaledSize(transform.lossyScale); nativeLayer.Size = new XrExtent2Df() { Width = correctedSize.x, Height = correctedSize.y }; unsafe { nativeLayer.Next = OpenXRLayerUtility.GetExtensionsChain(layerInfo, CompositionLayerExtension.ExtensionTarget.Layer); } return true; } protected override bool ActiveNativeLayer(CompositionLayerManager.LayerInfo layerInfo, ref XrCompositionLayerQuad nativeLayer) { var texturesExtension = layerInfo.Layer.GetComponent(); if (texturesExtension == null || texturesExtension.enabled == false) return false; var data = layerInfo.Layer.LayerData as QuadLayerData; var transform = layerInfo.Layer.GetComponent(); nativeLayer.Pose = new XrPosef(OpenXRUtility.ComputePoseToWorldSpace(transform, CompositionLayerManager.mainCameraCache).position, OpenXRUtility.ComputePoseToWorldSpace(transform, CompositionLayerManager.mainCameraCache).rotation); nativeLayer.Space = OpenXRLayerUtility.GetCurrentAppSpace(); if (texturesExtension.CustomRects) { int subImageWidth = 0; int subImageHeight = 0; switch (texturesExtension.sourceTexture) { case TexturesExtension.SourceTextureEnum.LocalTexture: { if (texturesExtension.LeftTexture != null) { subImageWidth = texturesExtension.LeftTexture.width; subImageHeight = texturesExtension.LeftTexture.height; } break; } case TexturesExtension.SourceTextureEnum.AndroidSurface: { subImageWidth = (int)texturesExtension.Resolution.x; subImageHeight = (int)texturesExtension.Resolution.y; break; } } nativeLayer.SubImage.ImageRect = new XrRect2Di() { Offset = new XrOffset2Di() { X = (int)(subImageWidth * texturesExtension.LeftEyeSourceRect.x), Y = (int)(subImageHeight * texturesExtension.LeftEyeSourceRect.y) }, Extent = new XrExtent2Di() { Width = (int)(subImageWidth * texturesExtension.LeftEyeSourceRect.width), Height = (int)(subImageHeight * texturesExtension.LeftEyeSourceRect.height) } }; var currentPosition = OpenXRUtility.ComputePoseToWorldSpace(transform, CompositionLayerManager.mainCameraCache).position; var correctedSize = texturesExtension.CropToAspect ? FixAspectRatio(data, transform, subImageWidth, subImageHeight) : data.GetScaledSize(transform.lossyScale); float transformedX = currentPosition.x + (((texturesExtension.LeftEyeDestinationRect.x + (0.5f * texturesExtension.LeftEyeDestinationRect.width) - 0.5f)) * correctedSize.x); float transformedY = currentPosition.y + (((texturesExtension.LeftEyeDestinationRect.y + (0.5f * texturesExtension.LeftEyeDestinationRect.height) - 0.5f)) * (-1.0f * correctedSize.y)); nativeLayer.Pose = new XrPosef(new Vector3(transformedX, transformedY, currentPosition.z), OpenXRUtility.ComputePoseToWorldSpace(transform, CompositionLayerManager.mainCameraCache).rotation); nativeLayer.Size = new XrExtent2Df() { Width = correctedSize.x * texturesExtension.LeftEyeDestinationRect.width, Height = correctedSize.y * texturesExtension.LeftEyeDestinationRect.height }; } return base.ActiveNativeLayer(layerInfo, ref nativeLayer); } static Vector2 FixAspectRatio(QuadLayerData data, Transform transform, int texWidth, int texHeight) { var requestedSize = data.GetScaledSize(transform.lossyScale); float reqSizeRatio = (float)requestedSize.x / (float)requestedSize.y; float texRatio = (float)texWidth / (float)texHeight; if (reqSizeRatio > texRatio) { // too wide requestedSize.x = requestedSize.y * texRatio; } else if (reqSizeRatio < texRatio) { // too narrow requestedSize.y = requestedSize.x / texRatio; } return requestedSize; } } } #endif