Merge pull request #2 from TensorStack-AI/AMDNitro

AMD Nitro Pipeline

Author: saddam213

TensorStack.StableDiffusion/Enums/PipelineType.cs

@@ -11,5 +11,6 @@ public enum PipelineType
         StableCascade = 10,
         LatentConsistency = 20,
         Flux = 30,
+        Nitro = 40
     }
 }

TensorStack.StableDiffusion/Models/TransformerNitroModel.cs

@@ -0,0 +1,56 @@
+// Copyright (c) TensorStack. All rights reserved.
+// Licensed under the Apache 2.0 License.
+using System.Threading;
+using System.Threading.Tasks;
+using TensorStack.Common;
+using TensorStack.Common.Tensor;
+using TensorStack.StableDiffusion.Config;
+
+namespace TensorStack.StableDiffusion.Models
+{
+    /// <summary>
+    /// TransformerModel: Nitro Conditional Transformer (MMDiT) architecture to denoise the encoded image latents.
+    /// </summary>
+    public class TransformerNitroModel : TransformerModel
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="TransformerNitroModel"/> class.
+        /// </summary>
+        /// <param name="configuration">The configuration.</param>
+        public TransformerNitroModel(TransformerModelConfig configuration)
+            : base(configuration) { }
+
+
+        /// <summary>
+        /// Runs the Transformer model with the specified inputs
+        /// </summary>
+        /// <param name="timestep">The timestep.</param>
+        /// <param name="hiddenStates">The hidden states.</param>
+        /// <param name="encoderHiddenStates">The encoder hidden states.</param>
+        /// <param name="cancellationToken">The cancellation token that can be used by other objects or threads to receive notice of cancellation.</param>
+        /// <returns>A Task&lt;Tensor`1&gt; representing the asynchronous operation.</returns>
+        public async Task<Tensor<float>> RunAsync(int timestep, Tensor<float> hiddenStates, Tensor<float> encoderHiddenStates, CancellationToken cancellationToken = default)
+        {
+            if (!Transformer.IsLoaded())
+                await Transformer.LoadAsync(cancellationToken: cancellationToken);
+
+            using (var transformerParams = new ModelParameters(Transformer.Metadata, cancellationToken))
+            {
+                // Inputs
+                transformerParams.AddInput(hiddenStates.AsTensorSpan());
+                transformerParams.AddInput(encoderHiddenStates.AsTensorSpan());
+                transformerParams.AddScalarInput(timestep);
+
+                // Outputs
+                transformerParams.AddOutput(hiddenStates.Dimensions);
+
+                // Inference
+                using (var results = await Transformer.RunInferenceAsync(transformerParams))
+                {
+                    return results[0].ToTensor();
+                }
+            }
+        }
+
+    }
+}