1 files changed, 59 insertions, 0 deletions
diff --git a/Ryujinx.Ava/Ui/Backend/Vulkan/VulkanMemoryHelper.cs b/Ryujinx.Ava/Ui/Backend/Vulkan/VulkanMemoryHelper.cs
new file mode 100644
index 00000000..a7052592
--- /dev/null
+++ b/Ryujinx.Ava/Ui/Backend/Vulkan/VulkanMemoryHelper.cs
@@ -0,0 +1,59 @@
+using Silk.NET.Vulkan;
+
+namespace Ryujinx.Ava.Ui.Vulkan
+{
+    internal static class VulkanMemoryHelper
+    {
+        internal static int FindSuitableMemoryTypeIndex(VulkanPhysicalDevice physicalDevice, uint memoryTypeBits,
+            MemoryPropertyFlags flags)
+        {
+            physicalDevice.Api.GetPhysicalDeviceMemoryProperties(physicalDevice.InternalHandle, out var properties);
+
+            for (var i = 0; i < properties.MemoryTypeCount; i++)
+            {
+                var type = properties.MemoryTypes[i];
+
+                if ((memoryTypeBits & (1 << i)) != 0 && type.PropertyFlags.HasFlag(flags)) return i;
+            }
+
+            return -1;
+        }
+
+        internal static unsafe void TransitionLayout(VulkanDevice device,
+            CommandBuffer commandBuffer,
+            Image image,
+            ImageLayout sourceLayout,
+            AccessFlags sourceAccessMask,
+            ImageLayout destinationLayout,
+            AccessFlags destinationAccessMask,
+            uint mipLevels)
+        {
+            var subresourceRange = new ImageSubresourceRange(ImageAspectFlags.ImageAspectColorBit, 0, mipLevels, 0, 1);
+
+            var barrier = new ImageMemoryBarrier
+            {
+                SType = StructureType.ImageMemoryBarrier,
+                SrcAccessMask = sourceAccessMask,
+                DstAccessMask = destinationAccessMask,
+                OldLayout = sourceLayout,
+                NewLayout = destinationLayout,
+                SrcQueueFamilyIndex = Vk.QueueFamilyIgnored,
+                DstQueueFamilyIndex = Vk.QueueFamilyIgnored,
+                Image = image,
+                SubresourceRange = subresourceRange
+            };
+
+            device.Api.CmdPipelineBarrier(
+                commandBuffer,
+                PipelineStageFlags.PipelineStageAllCommandsBit,
+                PipelineStageFlags.PipelineStageAllCommandsBit,
+                0,
+                0,
+                null,
+                0,
+                null,
+                1,
+                barrier);
+        }
+    }
+}