1 files changed, 92 insertions, 0 deletions
diff --git a/Ryujinx.Ava/Ui/Backend/Vulkan/Surfaces/VulkanSurfaceRenderTarget.cs b/Ryujinx.Ava/Ui/Backend/Vulkan/Surfaces/VulkanSurfaceRenderTarget.cs
new file mode 100644
index 00000000..b2b8843d
--- /dev/null
+++ b/Ryujinx.Ava/Ui/Backend/Vulkan/Surfaces/VulkanSurfaceRenderTarget.cs
@@ -0,0 +1,92 @@
+using System;
+using Avalonia;
+using Silk.NET.Vulkan;
+
+namespace Ryujinx.Ava.Ui.Vulkan.Surfaces
+{
+    internal class VulkanSurfaceRenderTarget : IDisposable
+    {
+        private readonly VulkanPlatformInterface _platformInterface;
+
+        private readonly Format _format;
+
+        public VulkanImage Image { get; private set; }
+        public bool IsCorrupted { get; private set; } = true;
+
+        public uint MipLevels => Image.MipLevels;
+
+        public VulkanSurfaceRenderTarget(VulkanPlatformInterface platformInterface, VulkanSurface surface)
+        {
+            _platformInterface = platformInterface;
+
+            Display = VulkanDisplay.CreateDisplay(platformInterface.Instance, platformInterface.Device,
+                platformInterface.PhysicalDevice, surface);
+            Surface = surface;
+
+            // Skia seems to only create surfaces from images with unorm format
+
+            IsRgba = Display.SurfaceFormat.Format >= Format.R8G8B8A8Unorm &&
+                     Display.SurfaceFormat.Format <= Format.R8G8B8A8Srgb;
+
+            _format = IsRgba ? Format.R8G8B8A8Unorm : Format.B8G8R8A8Unorm;
+        }
+
+        public bool IsRgba { get; }
+
+        public uint ImageFormat => (uint) _format;
+
+        public ulong MemorySize => Image.MemorySize;
+
+        public VulkanDisplay Display { get; }
+
+        public VulkanSurface Surface { get; }
+
+        public uint UsageFlags => Image.UsageFlags;
+
+        public PixelSize Size { get; private set; }
+
+        public void Dispose()
+        {
+            _platformInterface.Device.WaitIdle();
+            DestroyImage();
+            Display?.Dispose();
+            Surface?.Dispose();
+        }
+
+        public VulkanSurfaceRenderingSession BeginDraw(float scaling)
+        {
+            var session = new VulkanSurfaceRenderingSession(Display, _platformInterface.Device, this, scaling);
+
+            if (IsCorrupted)
+            {
+                IsCorrupted = false;
+                DestroyImage();
+                CreateImage();
+            }
+            else
+            {
+                Image.TransitionLayout(ImageLayout.ColorAttachmentOptimal, AccessFlags.AccessNoneKhr);
+            }
+
+            return session;
+        }
+
+        public void Invalidate()
+        {
+            IsCorrupted = true;
+        }
+
+        private void CreateImage()
+        {
+            Size = Display.Size;
+
+            Image = new VulkanImage(_platformInterface.Device, _platformInterface.PhysicalDevice, _platformInterface.Device.CommandBufferPool, ImageFormat, Size);
+        }
+
+        private void DestroyImage()
+        {
+            _platformInterface.Device.WaitIdle();
+            Image?.Dispose();
+        }
+    }
+}