1 files changed, 124 insertions, 0 deletions
diff --git a/Ryujinx.Ava/Ui/Backend/Vulkan/Skia/VulkanSkiaGpu.cs b/Ryujinx.Ava/Ui/Backend/Vulkan/Skia/VulkanSkiaGpu.cs
new file mode 100644
index 00000000..4fc6b929
--- /dev/null
+++ b/Ryujinx.Ava/Ui/Backend/Vulkan/Skia/VulkanSkiaGpu.cs
@@ -0,0 +1,124 @@
+using System;
+using System.Collections.Generic;
+using Avalonia;
+using Avalonia.Platform;
+using Avalonia.Skia;
+using Avalonia.X11;
+using Ryujinx.Ava.Ui.Vulkan;
+using Silk.NET.Vulkan;
+using SkiaSharp;
+
+namespace Ryujinx.Ava.Ui.Backend.Vulkan
+{
+    public class VulkanSkiaGpu : ISkiaGpu
+    {
+        private readonly VulkanPlatformInterface _vulkan;
+        private readonly long? _maxResourceBytes;
+        private GRVkBackendContext _grVkBackend;
+        private bool _initialized;
+
+        public GRContext GrContext { get; private set; }
+
+        public VulkanSkiaGpu(long? maxResourceBytes)
+        {
+            _vulkan = AvaloniaLocator.Current.GetService<VulkanPlatformInterface>();
+            _maxResourceBytes = maxResourceBytes;
+        }
+
+        private void Initialize()
+        {
+            if (_initialized)
+            {
+                return;
+            }
+
+            _initialized = true;
+            GRVkGetProcedureAddressDelegate getProc = (string name, IntPtr instanceHandle, IntPtr deviceHandle) =>
+            {
+                IntPtr addr = IntPtr.Zero;
+
+                if (deviceHandle != IntPtr.Zero)
+                {
+                    addr = _vulkan.Device.Api.GetDeviceProcAddr(new Device(deviceHandle), name);
+
+                    if (addr != IntPtr.Zero)
+                    {
+                        return addr;
+                    }
+
+                    addr = _vulkan.Device.Api.GetDeviceProcAddr(new Device(_vulkan.Device.Handle), name);
+
+                    if (addr != IntPtr.Zero)
+                    {
+                        return addr;
+                    }
+                }
+
+                addr = _vulkan.Device.Api.GetInstanceProcAddr(new Instance(_vulkan.Instance.Handle), name);
+
+                if (addr == IntPtr.Zero)
+                {
+                    addr = _vulkan.Device.Api.GetInstanceProcAddr(new Instance(instanceHandle), name);
+                }
+
+                return addr;
+            };
+
+            _grVkBackend = new GRVkBackendContext()
+            {
+                VkInstance = _vulkan.Device.Handle,
+                VkPhysicalDevice = _vulkan.PhysicalDevice.Handle,
+                VkDevice = _vulkan.Device.Handle,
+                VkQueue = _vulkan.Device.Queue.Handle,
+                GraphicsQueueIndex = _vulkan.PhysicalDevice.QueueFamilyIndex,
+                GetProcedureAddress = getProc
+            };
+            GrContext = GRContext.CreateVulkan(_grVkBackend);
+            if (_maxResourceBytes.HasValue)
+            {
+                GrContext.SetResourceCacheLimit(_maxResourceBytes.Value);
+            }
+        }
+
+        public ISkiaGpuRenderTarget TryCreateRenderTarget(IEnumerable<object> surfaces)
+        {
+            foreach (var surface in surfaces)
+            {
+                VulkanWindowSurface window;
+
+                if (surface is IPlatformHandle handle)
+                {
+                    window = new VulkanWindowSurface(handle.Handle);
+                }
+                else if (surface is X11FramebufferSurface x11FramebufferSurface)
+                {
+                    // As of Avalonia 0.10.13, an IPlatformHandle isn't passed for linux, so use reflection to otherwise get the window id
+                    var xId = (IntPtr)x11FramebufferSurface.GetType().GetField(
+                        "_xid",
+                        System.Reflection.BindingFlags.NonPublic | System.Reflection.BindingFlags.Instance).GetValue(x11FramebufferSurface);
+
+                    window = new VulkanWindowSurface(xId);
+                }
+                else
+                {
+                    continue;
+                }
+
+                VulkanRenderTarget vulkanRenderTarget = new VulkanRenderTarget(_vulkan, window);
+
+                Initialize();
+
+                vulkanRenderTarget.GrContext = GrContext;
+
+                return vulkanRenderTarget;
+            }
+
+            return null;
+        }
+
+        public ISkiaSurface TryCreateSurface(PixelSize size, ISkiaGpuRenderSession session)
+        {
+            return null;
+        }
+    }
+}