Add ControlNet pipeline scaffold

Author: saddam213

OnnxStack.StableDiffusion/Diffusers/ControlNet/ControlNetDiffuser.cs

@@ -0,0 +1,70 @@
+using Microsoft.Extensions.Logging;
+using Microsoft.ML.OnnxRuntime.Tensors;
+using OnnxStack.Core.Services;
+using OnnxStack.StableDiffusion.Common;
+using OnnxStack.StableDiffusion.Config;
+using OnnxStack.StableDiffusion.Enums;
+using OnnxStack.StableDiffusion.Models;
+using OnnxStack.StableDiffusion.Schedulers.StableDiffusion;
+using System;
+using System.Threading;
+using System.Threading.Tasks;
+
+namespace OnnxStack.StableDiffusion.Diffusers.ControlNet
+{
+    public abstract class ControlNetDiffuser : DiffuserBase
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="ControlNetDiffuser"/> class.
+        /// </summary>
+        /// <param name="configuration">The configuration.</param>
+        /// <param name="onnxModelService">The onnx model service.</param>
+        public ControlNetDiffuser(IOnnxModelService onnxModelService, IPromptService promptService, ILogger<ControlNetDiffuser> logger)
+            : base(onnxModelService, promptService, logger) { }
+
+
+        /// <summary>
+        /// Gets the type of the pipeline.
+        /// </summary>
+        public override DiffuserPipelineType PipelineType => DiffuserPipelineType.ControlNet;
+
+
+        /// <summary>
+        /// Called on each Scheduler step.
+        /// </summary>
+        /// <param name="modelOptions">The model options.</param>
+        /// <param name="promptOptions">The prompt options.</param>
+        /// <param name="schedulerOptions">The scheduler options.</param>
+        /// <param name="promptEmbeddings">The prompt embeddings.</param>
+        /// <param name="performGuidance">if set to <c>true</c> [perform guidance].</param>
+        /// <param name="progressCallback">The progress callback.</param>
+        /// <param name="cancellationToken">The cancellation token.</param>
+        /// <returns></returns>
+        /// <exception cref="System.NotImplementedException"></exception>
+        protected override Task<DenseTensor<float>> SchedulerStepAsync(StableDiffusionModelSet modelOptions, PromptOptions promptOptions, SchedulerOptions schedulerOptions, PromptEmbeddingsResult promptEmbeddings, bool performGuidance, Action<DiffusionProgress> progressCallback = null, CancellationToken cancellationToken = default)
+        {
+            throw new NotImplementedException();
+        }
+
+
+        /// <summary>
+        /// Gets the scheduler.
+        /// </summary>
+        /// <param name="options">The options.</param>
+        /// <param name="schedulerConfig">The scheduler configuration.</param>
+        /// <returns></returns>
+        protected override IScheduler GetScheduler(SchedulerOptions options)
+        {
+            return options.SchedulerType switch
+            {
+                SchedulerType.LMS => new LMSScheduler(options),
+                SchedulerType.Euler => new EulerScheduler(options),
+                SchedulerType.EulerAncestral => new EulerAncestralScheduler(options),
+                SchedulerType.DDPM => new DDPMScheduler(options),
+                SchedulerType.DDIM => new DDIMScheduler(options),
+                SchedulerType.KDPM2 => new KDPM2Scheduler(options),
+                _ => default
+            };
+        }
+    }
+}

OnnxStack.StableDiffusion/Diffusers/ControlNet/ImageDiffuser.cs

@@ -0,0 +1,84 @@
+using Microsoft.Extensions.Logging;
+using Microsoft.ML.OnnxRuntime;
+using Microsoft.ML.OnnxRuntime.Tensors;
+using OnnxStack.Core;
+using OnnxStack.Core.Config;
+using OnnxStack.Core.Model;
+using OnnxStack.Core.Services;
+using OnnxStack.StableDiffusion.Common;
+using OnnxStack.StableDiffusion.Config;
+using OnnxStack.StableDiffusion.Enums;
+using OnnxStack.StableDiffusion.Helpers;
+using SixLabors.ImageSharp;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+
+namespace OnnxStack.StableDiffusion.Diffusers.ControlNet
+{
+    public sealed class ImageDiffuser : ControlNetDiffuser
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="ImageDiffuser"/> class.
+        /// </summary>
+        /// <param name="configuration">The configuration.</param>
+        /// <param name="onnxModelService">The onnx model service.</param>
+        public ImageDiffuser(IOnnxModelService onnxModelService, IPromptService promptService, ILogger<ImageDiffuser> logger)
+            : base(onnxModelService, promptService, logger)
+        {
+        }
+
+
+        /// <summary>
+        /// Gets the type of the diffuser.
+        /// </summary>
+        public override DiffuserType DiffuserType => DiffuserType.ImageToImage;
+
+
+        /// <summary>
+        /// Gets the timesteps.
+        /// </summary>
+        /// <param name="prompt">The prompt.</param>
+        /// <param name="options">The options.</param>
+        /// <param name="scheduler">The scheduler.</param>
+        /// <returns></returns>
+        protected override IReadOnlyList<int> GetTimesteps(SchedulerOptions options, IScheduler scheduler)
+        {
+            var inittimestep = Math.Min((int)(options.InferenceSteps * options.Strength), options.InferenceSteps);
+            var start = Math.Max(options.InferenceSteps - inittimestep, 0);
+            return scheduler.Timesteps.Skip(start).ToList();
+        }
+
+
+        /// <summary>
+        /// Prepares the latents for inference.
+        /// </summary>
+        /// <param name="prompt">The prompt.</param>
+        /// <param name="options">The options.</param>
+        /// <param name="scheduler">The scheduler.</param>
+        /// <returns></returns>
+        protected override async Task<DenseTensor<float>> PrepareLatentsAsync(StableDiffusionModelSet model, PromptOptions prompt, SchedulerOptions options, IScheduler scheduler, IReadOnlyList<int> timesteps)
+        {
+            var imageTensor = prompt.InputImage.ToDenseTensor(new[] { 1, 3, options.Height, options.Width });
+
+            //TODO: Model Config, Channels
+            var outputDimension = options.GetScaledDimension();
+            var metadata = _onnxModelService.GetModelMetadata(model, OnnxModelType.VaeEncoder);
+            using (var inferenceParameters = new OnnxInferenceParameters(metadata))
+            {
+                inferenceParameters.AddInputTensor(imageTensor);
+                inferenceParameters.AddOutputBuffer(outputDimension);
+
+                var results = await _onnxModelService.RunInferenceAsync(model, OnnxModelType.VaeEncoder, inferenceParameters);
+                using (var result = results.First())
+                {
+                    var outputResult = result.ToDenseTensor();
+                    var scaledSample = outputResult.MultiplyBy(model.ScaleFactor);
+                    return scheduler.AddNoise(scaledSample, scheduler.CreateRandomSample(scaledSample.Dimensions), timesteps);
+                }
+            }
+        }
+
+    }
+}

OnnxStack.StableDiffusion/Enums/DiffuserPipelineType.cs

@@ -6,6 +6,7 @@ public enum DiffuserPipelineType
         StableDiffusionXL = 1,
         LatentConsistency = 10,
         LatentConsistencyXL = 11,
+        ControlNet = 20,
         InstaFlow = 30,
     }
 }

OnnxStack.StableDiffusion/Pipelines/ControlNetPipeline.cs

@@ -0,0 +1,57 @@
+using Microsoft.Extensions.Logging;
+using OnnxStack.Core;
+using OnnxStack.StableDiffusion.Common;
+using OnnxStack.StableDiffusion.Diffusers;
+using OnnxStack.StableDiffusion.Enums;
+using System.Collections.Concurrent;
+using System.Collections.Generic;
+using System.Linq;
+
+namespace OnnxStack.StableDiffusion.Pipelines
+{
+    public sealed class ControlNetPipeline : IPipeline
+    {
+        private readonly DiffuserPipelineType _pipelineType;
+        private readonly ILogger<ControlNetPipeline> _logger;
+        private readonly ConcurrentDictionary<DiffuserType, IDiffuser> _diffusers;
+
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="ControlNetPipeline"/> class.
+        /// </summary>
+        /// <param name="onnxModelService">The onnx model service.</param>
+        /// <param name="promptService">The prompt service.</param>
+        public ControlNetPipeline(IEnumerable<IDiffuser> diffusers, ILogger<ControlNetPipeline> logger)
+        {
+            _logger = logger;
+            _pipelineType = DiffuserPipelineType.ControlNet;
+            _diffusers = diffusers
+                 .Where(x => x.PipelineType == _pipelineType)
+                 .ToConcurrentDictionary(k => k.DiffuserType, v => v);
+        }
+
+
+        /// <summary>
+        /// Gets the type of the pipeline.
+        /// </summary>
+        public DiffuserPipelineType PipelineType => _pipelineType;
+
+
+        /// <summary>
+        /// Gets the diffusers.
+        /// </summary>
+        public ConcurrentDictionary<DiffuserType, IDiffuser> Diffusers => _diffusers;
+
+
+        /// <summary>
+        /// Gets the diffuser.
+        /// </summary>
+        /// <param name="diffuserType">Type of the diffuser.</param>
+        /// <returns></returns>
+        public IDiffuser GetDiffuser(DiffuserType diffuserType)
+        {
+            _diffusers.TryGetValue(diffuserType, out var diffuser);
+            return diffuser;
+        }
+    }
+}

OnnxStack.StableDiffusion/Registration.cs

@@ -55,6 +55,7 @@ private static void RegisterServices(this IServiceCollection serviceCollection)
             serviceCollection.AddSingleton<IPipeline, LatentConsistencyPipeline>();
             serviceCollection.AddSingleton<IPipeline, LatentConsistencyXLPipeline>();
             serviceCollection.AddSingleton<IPipeline, InstaFlowPipeline>();
+            serviceCollection.AddSingleton<IPipeline, ControlNetPipeline>();
 
             //StableDiffusion
             serviceCollection.AddSingleton<IDiffuser, StableDiffusion.Diffusers.StableDiffusion.TextDiffuser>();
@@ -79,6 +80,9 @@ private static void RegisterServices(this IServiceCollection serviceCollection)
 
             //InstaFlow
             serviceCollection.AddSingleton<IDiffuser, StableDiffusion.Diffusers.InstaFlow.TextDiffuser>();
+
+            //ControlNet
+            serviceCollection.AddSingleton<IDiffuser, StableDiffusion.Diffusers.ControlNet.ImageDiffuser>();
         }