1 files changed, 885 insertions, 0 deletions
diff --git a/src/Ryujinx.Graphics.Vulkan/TextureView.cs b/src/Ryujinx.Graphics.Vulkan/TextureView.cs
new file mode 100644
index 00000000..cd280d5f
--- /dev/null
+++ b/src/Ryujinx.Graphics.Vulkan/TextureView.cs
@@ -0,0 +1,885 @@
+using Ryujinx.Common.Memory;
+using Ryujinx.Graphics.GAL;
+using Silk.NET.Vulkan;
+using System;
+using System.Collections.Generic;
+using VkBuffer = Silk.NET.Vulkan.Buffer;
+using VkFormat = Silk.NET.Vulkan.Format;
+
+namespace Ryujinx.Graphics.Vulkan
+{
+    class TextureView : ITexture, IDisposable
+    {
+        private readonly VulkanRenderer _gd;
+
+        private readonly Device _device;
+
+        private readonly Auto<DisposableImageView> _imageView;
+        private readonly Auto<DisposableImageView> _imageViewIdentity;
+        private readonly Auto<DisposableImageView> _imageView2dArray;
+        private Dictionary<GAL.Format, TextureView> _selfManagedViews;
+
+        private TextureCreateInfo _info;
+
+        public TextureCreateInfo Info => _info;
+
+        public TextureStorage Storage { get; }
+
+        public int Width => Info.Width;
+        public int Height => Info.Height;
+        public int Layers => Info.GetDepthOrLayers();
+        public int FirstLayer { get; }
+        public int FirstLevel { get; }
+        public float ScaleFactor => Storage.ScaleFactor;
+        public VkFormat VkFormat { get; }
+        public bool Valid { get; private set; }
+
+        public TextureView(
+            VulkanRenderer gd,
+            Device device,
+            TextureCreateInfo info,
+            TextureStorage storage,
+            int firstLayer,
+            int firstLevel)
+        {
+            _gd = gd;
+            _device = device;
+            _info = info;
+            Storage = storage;
+            FirstLayer = firstLayer;
+            FirstLevel = firstLevel;
+
+            storage.IncrementViewsCount();
+
+            gd.Textures.Add(this);
+
+            var format = _gd.FormatCapabilities.ConvertToVkFormat(info.Format);
+            var usage = TextureStorage.GetImageUsageFromFormat(info.Format);
+            var levels = (uint)info.Levels;
+            var layers = (uint)info.GetLayers();
+
+            VkFormat = format;
+
+            var type = info.Target.ConvertView();
+
+            var swizzleR = info.SwizzleR.Convert();
+            var swizzleG = info.SwizzleG.Convert();
+            var swizzleB = info.SwizzleB.Convert();
+            var swizzleA = info.SwizzleA.Convert();
+
+            if (info.Format == GAL.Format.R5G5B5A1Unorm ||
+                info.Format == GAL.Format.R5G5B5X1Unorm ||
+                info.Format == GAL.Format.R5G6B5Unorm)
+            {
+                var temp = swizzleR;
+
+                swizzleR = swizzleB;
+                swizzleB = temp;
+            }
+            else if (VkFormat == VkFormat.R4G4B4A4UnormPack16 || info.Format == GAL.Format.A1B5G5R5Unorm)
+            {
+                var tempB = swizzleB;
+                var tempA = swizzleA;
+
+                swizzleB = swizzleG;
+                swizzleA = swizzleR;
+                swizzleR = tempA;
+                swizzleG = tempB;
+            }
+
+            var componentMapping = new ComponentMapping(swizzleR, swizzleG, swizzleB, swizzleA);
+
+            var aspectFlags = info.Format.ConvertAspectFlags(info.DepthStencilMode);
+            var aspectFlagsDepth = info.Format.ConvertAspectFlags();
+
+            var subresourceRange = new ImageSubresourceRange(aspectFlags, (uint)firstLevel, levels, (uint)firstLayer, layers);
+            var subresourceRangeDepth = new ImageSubresourceRange(aspectFlagsDepth, (uint)firstLevel, levels, (uint)firstLayer, layers);
+
+            unsafe Auto<DisposableImageView> CreateImageView(ComponentMapping cm, ImageSubresourceRange sr, ImageViewType viewType, ImageUsageFlags usageFlags)
+            {
+                var usage = new ImageViewUsageCreateInfo()
+                {
+                    SType = StructureType.ImageViewUsageCreateInfo,
+                    Usage = usageFlags
+                };
+
+                var imageCreateInfo = new ImageViewCreateInfo()
+                {
+                    SType = StructureType.ImageViewCreateInfo,
+                    Image = storage.GetImageForViewCreation(),
+                    ViewType = viewType,
+                    Format = format,
+                    Components = cm,
+                    SubresourceRange = sr,
+                    PNext = &usage
+                };
+
+                gd.Api.CreateImageView(device, imageCreateInfo, null, out var imageView).ThrowOnError();
+                return new Auto<DisposableImageView>(new DisposableImageView(gd.Api, device, imageView), null, storage.GetImage());
+            }
+
+            _imageView = CreateImageView(componentMapping, subresourceRange, type, ImageUsageFlags.SampledBit);
+
+            // Framebuffer attachments and storage images requires a identity component mapping.
+            var identityComponentMapping = new ComponentMapping(
+                ComponentSwizzle.R,
+                ComponentSwizzle.G,
+                ComponentSwizzle.B,
+                ComponentSwizzle.A);
+
+            _imageViewIdentity = CreateImageView(identityComponentMapping, subresourceRangeDepth, type, usage);
+
+            // Framebuffer attachments also require 3D textures to be bound as 2D array.
+            if (info.Target == Target.Texture3D)
+            {
+                if (gd.Capabilities.PortabilitySubset.HasFlag(PortabilitySubsetFlags.No3DImageView))
+                {
+                    if (levels == 1 && (info.Format.IsRtColorCompatible() || info.Format.IsDepthOrStencil()))
+                    {
+                        subresourceRange = new ImageSubresourceRange(aspectFlags, (uint)firstLevel, levels, (uint)firstLayer, 1);
+
+                        _imageView2dArray = CreateImageView(identityComponentMapping, subresourceRange, ImageViewType.Type2D, ImageUsageFlags.ColorAttachmentBit);
+                    }
+                }
+                else
+                {
+                    subresourceRange = new ImageSubresourceRange(aspectFlags, (uint)firstLevel, levels, (uint)firstLayer, (uint)info.Depth);
+
+                    _imageView2dArray = CreateImageView(identityComponentMapping, subresourceRange, ImageViewType.Type2DArray, usage);
+                }
+            }
+
+            Valid = true;
+        }
+
+        public Auto<DisposableImage> GetImage()
+        {
+            return Storage.GetImage();
+        }
+
+        public Auto<DisposableImageView> GetImageView()
+        {
+            return _imageView;
+        }
+
+        public Auto<DisposableImageView> GetIdentityImageView()
+        {
+            return _imageViewIdentity;
+        }
+
+        public Auto<DisposableImageView> GetImageViewForAttachment()
+        {
+            return _imageView2dArray ?? _imageViewIdentity;
+        }
+
+        public void CopyTo(ITexture destination, int firstLayer, int firstLevel)
+        {
+            var src = this;
+            var dst = (TextureView)destination;
+
+            if (!Valid || !dst.Valid)
+            {
+                return;
+            }
+
+            _gd.PipelineInternal.EndRenderPass();
+
+            var cbs = _gd.PipelineInternal.CurrentCommandBuffer;
+
+            var srcImage = src.GetImage().Get(cbs).Value;
+            var dstImage = dst.GetImage().Get(cbs).Value;
+
+            if (!dst.Info.Target.IsMultisample() && Info.Target.IsMultisample())
+            {
+                int layers = Math.Min(Info.GetLayers(), dst.Info.GetLayers() - firstLayer);
+                _gd.HelperShader.CopyMSToNonMS(_gd, cbs, src, dst, 0, firstLayer, layers);
+            }
+            else if (dst.Info.Target.IsMultisample() && !Info.Target.IsMultisample())
+            {
+                int layers = Math.Min(Info.GetLayers(), dst.Info.GetLayers() - firstLayer);
+                _gd.HelperShader.CopyNonMSToMS(_gd, cbs, src, dst, 0, firstLayer, layers);
+            }
+            else if (dst.Info.BytesPerPixel != Info.BytesPerPixel)
+            {
+                int layers = Math.Min(Info.GetLayers(), dst.Info.GetLayers() - firstLayer);
+                int levels = Math.Min(Info.Levels, dst.Info.Levels - firstLevel);
+                _gd.HelperShader.CopyIncompatibleFormats(_gd, cbs, src, dst, 0, firstLayer, 0, firstLevel, layers, levels);
+            }
+            else
+            {
+                TextureCopy.Copy(
+                    _gd.Api,
+                    cbs.CommandBuffer,
+                    srcImage,
+                    dstImage,
+                    src.Info,
+                    dst.Info,
+                    src.FirstLayer,
+                    dst.FirstLayer,
+                    src.FirstLevel,
+                    dst.FirstLevel,
+                    0,
+                    firstLayer,
+                    0,
+                    firstLevel);
+            }
+        }
+
+        public void CopyTo(ITexture destination, int srcLayer, int dstLayer, int srcLevel, int dstLevel)
+        {
+            var src = this;
+            var dst = (TextureView)destination;
+
+            if (!Valid || !dst.Valid)
+            {
+                return;
+            }
+
+            _gd.PipelineInternal.EndRenderPass();
+
+            var cbs = _gd.PipelineInternal.CurrentCommandBuffer;
+
+            var srcImage = src.GetImage().Get(cbs).Value;
+            var dstImage = dst.GetImage().Get(cbs).Value;
+
+            if (!dst.Info.Target.IsMultisample() && Info.Target.IsMultisample())
+            {
+                _gd.HelperShader.CopyMSToNonMS(_gd, cbs, src, dst, srcLayer, dstLayer, 1);
+            }
+            else if (dst.Info.Target.IsMultisample() && !Info.Target.IsMultisample())
+            {
+                _gd.HelperShader.CopyNonMSToMS(_gd, cbs, src, dst, srcLayer, dstLayer, 1);
+            }
+            else if (dst.Info.BytesPerPixel != Info.BytesPerPixel)
+            {
+                _gd.HelperShader.CopyIncompatibleFormats(_gd, cbs, src, dst, srcLayer, dstLayer, srcLevel, dstLevel, 1, 1);
+            }
+            else
+            {
+                TextureCopy.Copy(
+                    _gd.Api,
+                    cbs.CommandBuffer,
+                    srcImage,
+                    dstImage,
+                    src.Info,
+                    dst.Info,
+                    src.FirstLayer,
+                    dst.FirstLayer,
+                    src.FirstLevel,
+                    dst.FirstLevel,
+                    srcLayer,
+                    dstLayer,
+                    srcLevel,
+                    dstLevel,
+                    1,
+                    1);
+            }
+        }
+
+        public void CopyTo(ITexture destination, Extents2D srcRegion, Extents2D dstRegion, bool linearFilter)
+        {
+            var dst = (TextureView)destination;
+
+            if (_gd.CommandBufferPool.OwnedByCurrentThread)
+            {
+                _gd.PipelineInternal.EndRenderPass();
+
+                var cbs = _gd.PipelineInternal.CurrentCommandBuffer;
+
+                CopyToImpl(cbs, dst, srcRegion, dstRegion, linearFilter);
+            }
+            else
+            {
+                var cbp = _gd.BackgroundResources.Get().GetPool();
+
+                using var cbs = cbp.Rent();
+
+                CopyToImpl(cbs, dst, srcRegion, dstRegion, linearFilter);
+            }
+        }
+
+        private void CopyToImpl(CommandBufferScoped cbs, TextureView dst, Extents2D srcRegion, Extents2D dstRegion, bool linearFilter)
+        {
+            var src = this;
+
+            var srcFormat = GetCompatibleGalFormat(src.Info.Format);
+            var dstFormat = GetCompatibleGalFormat(dst.Info.Format);
+
+            bool srcUsesStorageFormat = src.VkFormat == src.Storage.VkFormat;
+            bool dstUsesStorageFormat = dst.VkFormat == dst.Storage.VkFormat;
+
+            int layers = Math.Min(dst.Info.GetDepthOrLayers(), src.Info.GetDepthOrLayers());
+            int levels = Math.Min(dst.Info.Levels, src.Info.Levels);
+
+            if (srcUsesStorageFormat && dstUsesStorageFormat)
+            {
+                if ((srcRegion.X1 | dstRegion.X1) == 0 &&
+                    (srcRegion.Y1 | dstRegion.Y1) == 0 &&
+                    srcRegion.X2 == src.Width &&
+                    srcRegion.Y2 == src.Height &&
+                    dstRegion.X2 == dst.Width &&
+                    dstRegion.Y2 == dst.Height &&
+                    src.Width == dst.Width &&
+                    src.Height == dst.Height &&
+                    src.VkFormat == dst.VkFormat)
+                {
+                    if (src.Info.Samples > 1 && src.Info.Samples != dst.Info.Samples && src.Info.Format.IsDepthOrStencil())
+                    {
+                        // CmdResolveImage does not support depth-stencil resolve, so we need to use an alternative path
+                        // for those textures.
+                        TextureCopy.ResolveDepthStencil(_gd, _device, cbs, src, dst);
+                    }
+                    else
+                    {
+                        TextureCopy.Copy(
+                            _gd.Api,
+                            cbs.CommandBuffer,
+                            src.GetImage().Get(cbs).Value,
+                            dst.GetImage().Get(cbs).Value,
+                            src.Info,
+                            dst.Info,
+                            src.FirstLayer,
+                            dst.FirstLayer,
+                            src.FirstLevel,
+                            dst.FirstLevel,
+                            0,
+                            0,
+                            0,
+                            0,
+                            layers,
+                            levels);
+                    }
+
+                    return;
+                }
+                else if (_gd.FormatCapabilities.OptimalFormatSupports(FormatFeatureFlags.BlitSrcBit, srcFormat) &&
+                         _gd.FormatCapabilities.OptimalFormatSupports(FormatFeatureFlags.BlitDstBit, dstFormat))
+                {
+                    TextureCopy.Blit(
+                        _gd.Api,
+                        cbs.CommandBuffer,
+                        src.GetImage().Get(cbs).Value,
+                        dst.GetImage().Get(cbs).Value,
+                        src.Info,
+                        dst.Info,
+                        srcRegion,
+                        dstRegion,
+                        src.FirstLayer,
+                        dst.FirstLayer,
+                        src.FirstLevel,
+                        dst.FirstLevel,
+                        layers,
+                        levels,
+                        linearFilter);
+
+                    return;
+                }
+            }
+
+            bool isDepthOrStencil = dst.Info.Format.IsDepthOrStencil();
+
+            if (VulkanConfiguration.UseSlowSafeBlitOnAmd && (_gd.Vendor == Vendor.Amd || _gd.IsMoltenVk))
+            {
+                _gd.HelperShader.Blit(
+                    _gd,
+                    src,
+                    dst,
+                    srcRegion,
+                    dstRegion,
+                    layers,
+                    levels,
+                    isDepthOrStencil,
+                    linearFilter);
+
+                return;
+            }
+
+            Auto<DisposableImage> srcImage;
+            Auto<DisposableImage> dstImage;
+
+            if (isDepthOrStencil)
+            {
+                srcImage = src.Storage.CreateAliasedColorForDepthStorageUnsafe(srcFormat).GetImage();
+                dstImage = dst.Storage.CreateAliasedColorForDepthStorageUnsafe(dstFormat).GetImage();
+            }
+            else
+            {
+                srcImage = src.Storage.CreateAliasedStorageUnsafe(srcFormat).GetImage();
+                dstImage = dst.Storage.CreateAliasedStorageUnsafe(dstFormat).GetImage();
+            }
+
+            TextureCopy.Blit(
+                _gd.Api,
+                cbs.CommandBuffer,
+                srcImage.Get(cbs).Value,
+                dstImage.Get(cbs).Value,
+                src.Info,
+                dst.Info,
+                srcRegion,
+                dstRegion,
+                src.FirstLayer,
+                dst.FirstLayer,
+                src.FirstLevel,
+                dst.FirstLevel,
+                layers,
+                levels,
+                linearFilter,
+                ImageAspectFlags.ColorBit,
+                ImageAspectFlags.ColorBit);
+        }
+
+        public static unsafe void InsertImageBarrier(
+            Vk api,
+            CommandBuffer commandBuffer,
+            Image image,
+            AccessFlags srcAccessMask,
+            AccessFlags dstAccessMask,
+            PipelineStageFlags srcStageMask,
+            PipelineStageFlags dstStageMask,
+            ImageAspectFlags aspectFlags,
+            int firstLayer,
+            int firstLevel,
+            int layers,
+            int levels)
+        {
+            ImageMemoryBarrier memoryBarrier = new ImageMemoryBarrier()
+            {
+                SType = StructureType.ImageMemoryBarrier,
+                SrcAccessMask = srcAccessMask,
+                DstAccessMask = dstAccessMask,
+                SrcQueueFamilyIndex = Vk.QueueFamilyIgnored,
+                DstQueueFamilyIndex = Vk.QueueFamilyIgnored,
+                Image = image,
+                OldLayout = ImageLayout.General,
+                NewLayout = ImageLayout.General,
+                SubresourceRange = new ImageSubresourceRange(aspectFlags, (uint)firstLevel, (uint)levels, (uint)firstLayer, (uint)layers)
+            };
+
+            api.CmdPipelineBarrier(
+                commandBuffer,
+                srcStageMask,
+                dstStageMask,
+                0,
+                0,
+                null,
+                0,
+                null,
+                1,
+                memoryBarrier);
+        }
+
+        public TextureView GetView(GAL.Format format)
+        {
+            if (format == Info.Format)
+            {
+                return this;
+            }
+
+            if (_selfManagedViews != null && _selfManagedViews.TryGetValue(format, out var view))
+            {
+                return view;
+            }
+
+            view = CreateViewImpl(new TextureCreateInfo(
+                Info.Width,
+                Info.Height,
+                Info.Depth,
+                Info.Levels,
+                Info.Samples,
+                Info.BlockWidth,
+                Info.BlockHeight,
+                Info.BytesPerPixel,
+                format,
+                Info.DepthStencilMode,
+                Info.Target,
+                Info.SwizzleR,
+                Info.SwizzleG,
+                Info.SwizzleB,
+                Info.SwizzleA), 0, 0);
+
+            (_selfManagedViews ??= new Dictionary<GAL.Format, TextureView>()).Add(format, view);
+
+            return view;
+        }
+
+        public ITexture CreateView(TextureCreateInfo info, int firstLayer, int firstLevel)
+        {
+            return CreateViewImpl(info, firstLayer, firstLevel);
+        }
+
+        public TextureView CreateViewImpl(TextureCreateInfo info, int firstLayer, int firstLevel)
+        {
+            return new TextureView(_gd, _device, info, Storage, FirstLayer + firstLayer, FirstLevel + firstLevel);
+        }
+
+        public byte[] GetData(int x, int y, int width, int height)
+        {
+            int size = width * height * Info.BytesPerPixel;
+            using var bufferHolder = _gd.BufferManager.Create(_gd, size);
+
+            using (var cbs = _gd.CommandBufferPool.Rent())
+            {
+                var buffer = bufferHolder.GetBuffer(cbs.CommandBuffer).Get(cbs).Value;
+                var image = GetImage().Get(cbs).Value;
+
+                CopyFromOrToBuffer(cbs.CommandBuffer, buffer, image, size, true, 0, 0, x, y, width, height);
+            }
+
+            bufferHolder.WaitForFences();
+            byte[] bitmap = new byte[size];
+            GetDataFromBuffer(bufferHolder.GetDataStorage(0, size), size, Span<byte>.Empty).CopyTo(bitmap);
+            return bitmap;
+        }
+
+        public PinnedSpan<byte> GetData()
+        {
+            BackgroundResource resources = _gd.BackgroundResources.Get();
+
+            if (_gd.CommandBufferPool.OwnedByCurrentThread)
+            {
+                _gd.FlushAllCommands();
+
+                return PinnedSpan<byte>.UnsafeFromSpan(GetData(_gd.CommandBufferPool, resources.GetFlushBuffer()));
+            }
+            else
+            {
+                return PinnedSpan<byte>.UnsafeFromSpan(GetData(resources.GetPool(), resources.GetFlushBuffer()));
+            }
+        }
+
+        public PinnedSpan<byte> GetData(int layer, int level)
+        {
+            BackgroundResource resources = _gd.BackgroundResources.Get();
+
+            if (_gd.CommandBufferPool.OwnedByCurrentThread)
+            {
+                _gd.FlushAllCommands();
+
+                return PinnedSpan<byte>.UnsafeFromSpan(GetData(_gd.CommandBufferPool, resources.GetFlushBuffer(), layer, level));
+            }
+            else
+            {
+                return PinnedSpan<byte>.UnsafeFromSpan(GetData(resources.GetPool(), resources.GetFlushBuffer(), layer, level));
+            }
+        }
+
+        private ReadOnlySpan<byte> GetData(CommandBufferPool cbp, PersistentFlushBuffer flushBuffer)
+        {
+            int size = 0;
+
+            for (int level = 0; level < Info.Levels; level++)
+            {
+                size += Info.GetMipSize(level);
+            }
+
+            size = GetBufferDataLength(size);
+
+            Span<byte> result = flushBuffer.GetTextureData(cbp, this, size);
+            return GetDataFromBuffer(result, size, result);
+        }
+
+        private ReadOnlySpan<byte> GetData(CommandBufferPool cbp, PersistentFlushBuffer flushBuffer, int layer, int level)
+        {
+            int size = GetBufferDataLength(Info.GetMipSize(level));
+
+            Span<byte> result = flushBuffer.GetTextureData(cbp, this, size, layer, level);
+            return GetDataFromBuffer(result, size, result);
+        }
+
+        public void SetData(SpanOrArray<byte> data)
+        {
+            SetData(data, 0, 0, Info.GetLayers(), Info.Levels, singleSlice: false);
+        }
+
+        public void SetData(SpanOrArray<byte> data, int layer, int level)
+        {
+            SetData(data, layer, level, 1, 1, singleSlice: true);
+        }
+
+        public void SetData(SpanOrArray<byte> data, int layer, int level, Rectangle<int> region)
+        {
+            SetData(data, layer, level, 1, 1, singleSlice: true, region);
+        }
+
+        private void SetData(ReadOnlySpan<byte> data, int layer, int level, int layers, int levels, bool singleSlice, Rectangle<int>? region = null)
+        {
+            int bufferDataLength = GetBufferDataLength(data.Length);
+
+            using var bufferHolder = _gd.BufferManager.Create(_gd, bufferDataLength);
+
+            Auto<DisposableImage> imageAuto = GetImage();
+
+            // Load texture data inline if the texture has been used on the current command buffer.
+
+            bool loadInline = Storage.HasCommandBufferDependency(_gd.PipelineInternal.CurrentCommandBuffer);
+
+            var cbs = loadInline ? _gd.PipelineInternal.CurrentCommandBuffer : _gd.PipelineInternal.GetPreloadCommandBuffer();
+
+            if (loadInline)
+            {
+                _gd.PipelineInternal.EndRenderPass();
+            }
+
+            CopyDataToBuffer(bufferHolder.GetDataStorage(0, bufferDataLength), data);
+
+            var buffer = bufferHolder.GetBuffer(cbs.CommandBuffer).Get(cbs).Value;
+            var image = imageAuto.Get(cbs).Value;
+
+            if (region.HasValue)
+            {
+                CopyFromOrToBuffer(
+                    cbs.CommandBuffer,
+                    buffer,
+                    image,
+                    bufferDataLength,
+                    false,
+                    layer,
+                    level,
+                    region.Value.X,
+                    region.Value.Y,
+                    region.Value.Width,
+                    region.Value.Height);
+            }
+            else
+            {
+                CopyFromOrToBuffer(cbs.CommandBuffer, buffer, image, bufferDataLength, false, layer, level, layers, levels, singleSlice);
+            }
+        }
+
+        private int GetBufferDataLength(int length)
+        {
+            if (NeedsD24S8Conversion())
+            {
+                return length * 2;
+            }
+
+            return length;
+        }
+
+        private GAL.Format GetCompatibleGalFormat(GAL.Format format)
+        {
+            if (NeedsD24S8Conversion())
+            {
+                return GAL.Format.D32FloatS8Uint;
+            }
+
+            return format;
+        }
+
+        private void CopyDataToBuffer(Span<byte> storage, ReadOnlySpan<byte> input)
+        {
+            if (NeedsD24S8Conversion())
+            {
+                FormatConverter.ConvertD24S8ToD32FS8(storage, input);
+                return;
+            }
+
+            input.CopyTo(storage);
+        }
+
+        private ReadOnlySpan<byte> GetDataFromBuffer(ReadOnlySpan<byte> storage, int size, Span<byte> output)
+        {
+            if (NeedsD24S8Conversion())
+            {
+                if (output.IsEmpty)
+                {
+                    output = new byte[GetBufferDataLength(size)];
+                }
+
+                FormatConverter.ConvertD32FS8ToD24S8(output, storage);
+                return output;
+            }
+
+            return storage;
+        }
+
+        private bool NeedsD24S8Conversion()
+        {
+            return FormatCapabilities.IsD24S8(Info.Format) && VkFormat == VkFormat.D32SfloatS8Uint;
+        }
+
+        public void CopyFromOrToBuffer(
+            CommandBuffer commandBuffer,
+            VkBuffer buffer,
+            Image image,
+            int size,
+            bool to,
+            int dstLayer,
+            int dstLevel,
+            int dstLayers,
+            int dstLevels,
+            bool singleSlice)
+        {
+            bool is3D = Info.Target == Target.Texture3D;
+            int width = Math.Max(1, Info.Width >> dstLevel);
+            int height = Math.Max(1, Info.Height >> dstLevel);
+            int depth = is3D && !singleSlice ? Math.Max(1, Info.Depth >> dstLevel) : 1;
+            int layer = is3D ? 0 : dstLayer;
+            int layers = dstLayers;
+            int levels = dstLevels;
+
+            int offset = 0;
+
+            for (int level = 0; level < levels; level++)
+            {
+                int mipSize = GetBufferDataLength(Info.GetMipSize2D(dstLevel + level) * dstLayers);
+
+                int endOffset = offset + mipSize;
+
+                if ((uint)endOffset > (uint)size)
+                {
+                    break;
+                }
+
+                int rowLength = (Info.GetMipStride(dstLevel + level) / Info.BytesPerPixel) * Info.BlockWidth;
+
+                var aspectFlags = Info.Format.ConvertAspectFlags();
+
+                if (aspectFlags == (ImageAspectFlags.DepthBit | ImageAspectFlags.StencilBit))
+                {
+                    aspectFlags = ImageAspectFlags.DepthBit;
+                }
+
+                var sl = new ImageSubresourceLayers(
+                    aspectFlags,
+                    (uint)(FirstLevel + dstLevel + level),
+                    (uint)(FirstLayer + layer),
+                    (uint)layers);
+
+                var extent = new Extent3D((uint)width, (uint)height, (uint)depth);
+
+                int z = is3D ? dstLayer : 0;
+
+                var region = new BufferImageCopy(
+                    (ulong)offset,
+                    (uint)AlignUpNpot(rowLength, Info.BlockWidth),
+                    (uint)AlignUpNpot(height, Info.BlockHeight),
+                    sl,
+                    new Offset3D(0, 0, z),
+                    extent);
+
+                if (to)
+                {
+                    _gd.Api.CmdCopyImageToBuffer(commandBuffer, image, ImageLayout.General, buffer, 1, region);
+                }
+                else
+                {
+                    _gd.Api.CmdCopyBufferToImage(commandBuffer, buffer, image, ImageLayout.General, 1, region);
+                }
+
+                offset += mipSize;
+
+                width = Math.Max(1, width >> 1);
+                height = Math.Max(1, height >> 1);
+
+                if (Info.Target == Target.Texture3D)
+                {
+                    depth = Math.Max(1, depth >> 1);
+                }
+            }
+        }
+
+        private void CopyFromOrToBuffer(
+            CommandBuffer commandBuffer,
+            VkBuffer buffer,
+            Image image,
+            int size,
+            bool to,
+            int dstLayer,
+            int dstLevel,
+            int x,
+            int y,
+            int width,
+            int height)
+        {
+            var aspectFlags = Info.Format.ConvertAspectFlags();
+
+            if (aspectFlags == (ImageAspectFlags.DepthBit | ImageAspectFlags.StencilBit))
+            {
+                aspectFlags = ImageAspectFlags.DepthBit;
+            }
+
+            var sl = new ImageSubresourceLayers(aspectFlags, (uint)(FirstLevel + dstLevel), (uint)(FirstLayer + dstLayer), 1);
+
+            var extent = new Extent3D((uint)width, (uint)height, 1);
+
+            int rowLengthAlignment = Info.BlockWidth;
+
+            // We expect all data being written into the texture to have a stride aligned by 4.
+            if (!to && Info.BytesPerPixel < 4)
+            {
+                rowLengthAlignment = 4 / Info.BytesPerPixel;
+            }
+
+            var region = new BufferImageCopy(
+                0,
+                (uint)AlignUpNpot(width, rowLengthAlignment),
+                (uint)AlignUpNpot(height, Info.BlockHeight),
+                sl,
+                new Offset3D(x, y, 0),
+                extent);
+
+            if (to)
+            {
+                _gd.Api.CmdCopyImageToBuffer(commandBuffer, image, ImageLayout.General, buffer, 1, region);
+            }
+            else
+            {
+                _gd.Api.CmdCopyBufferToImage(commandBuffer, buffer, image, ImageLayout.General, 1, region);
+            }
+        }
+
+        private static int AlignUpNpot(int size, int alignment)
+        {
+            int remainder = size % alignment;
+            if (remainder == 0)
+            {
+                return size;
+            }
+
+            return size + (alignment - remainder);
+        }
+
+        public void SetStorage(BufferRange buffer)
+        {
+            throw new NotImplementedException();
+        }
+
+        protected virtual void Dispose(bool disposing)
+        {
+            if (disposing)
+            {
+                Valid = false;
+
+                if (_gd.Textures.Remove(this))
+                {
+                    _imageView.Dispose();
+                    _imageViewIdentity.Dispose();
+                    _imageView2dArray?.Dispose();
+
+                    Storage.DecrementViewsCount();
+                }
+            }
+        }
+
+        public void Dispose()
+        {
+            if (_selfManagedViews != null)
+            {
+                foreach (var view in _selfManagedViews.Values)
+                {
+                    view.Dispose();
+                }
+
+                _selfManagedViews = null;
+            }
+
+            Dispose(true);
+        }
+
+        public void Release()
+        {
+            Dispose();
+        }
+    }
+}