Merge pull request #12 from DarthAffe/HPPH

Changed everything image-related to use HPPH

StableDiffusion.NET/Backends/RocmBackend.cs

@@ -2,7 +2,6 @@
 using System.Runtime.InteropServices;
 using System.Text.RegularExpressions;
 using JetBrains.Annotations;
-using StableDiffusion.NET.Helper;
 
 namespace StableDiffusion.NET;
 

StableDiffusion.NET/Helper/ImageHelper.cs

@@ -0,0 +1,36 @@
+using HPPH;
+using System;
+using System.Runtime.InteropServices;
+
+namespace StableDiffusion.NET;
+
+internal static class ImageHelper
+{
+    public static unsafe Image<ColorRGB> ToImage(Native.sd_image_t* sdImage)
+    {
+        int width = (int)sdImage->width;
+        int height = (int)sdImage->height;
+        int bpp = (int)sdImage->channel;
+
+        Image<ColorRGB> image = Image<ColorRGB>.Create(new ReadOnlySpan<byte>(sdImage->data, width * height * bpp), width, height, width * bpp);
+
+        Dispose(sdImage);
+
+        return image;
+    }
+
+    public static unsafe void Dispose(Native.sd_image_t* image)
+    {
+        Marshal.FreeHGlobal((nint)image->data);
+        Marshal.FreeHGlobal((nint)image);
+    }
+
+    public static unsafe Native.sd_image_t ToSdImage(this IImage<ColorRGB> image, byte* pinnedReference)
+        => new()
+        {
+            width = (uint)image.Width,
+            height = (uint)image.Height,
+            channel = (uint)image.ColorFormat.BytesPerPixel,
+            data = pinnedReference
+        };
+}