remove old initializer

swift/StableDiffusion/pipeline/StableDiffusionPipeline+SampleInput.swift

@@ -0,0 +1,82 @@
+//
+//  File.swift
+//  
+//
+//  Created by Timothy Kautz on 1/30/23.
+//
+
+import Foundation
+import CoreGraphics
+
+@available(iOS 16.2, macOS 13.1, *)
+extension StableDiffusionPipeline {
+    
+    /// Tyoe of processing that will be performed to generate an image
+    public enum Mode {
+        case textToImage
+        case imageToImage
+        // case inPainting
+    }
+    
+    /// Image generation configuration
+    public struct SampleInput: Hashable {
+        
+        /// Text prompt to guide sampling
+        public var prompt: String
+        /// Negative text prompt to guide sampling
+        public var negativePrompt: String = ""
+        /// Starting image for image2image or in-painting
+        public var startingImage: CGImage? = nil
+        //public var maskImage: CGImage? = nil
+        public var strength: Float = 1.0
+        /// Number of images to generate
+        public var imageCount: Int = 1
+        /// Number of inference steps to perform
+        public var stepCount: Int = 50
+        /// Random seed which to start generation
+        public var seed: UInt32 = 0
+        /// Controls the influence of the text prompt on sampling process (0=random images)
+        public var guidanceScale: Float = 7.5
+        /// Safety checks are only performed if `self.canSafetyCheck && !disableSafety`
+        public var disableSafety: Bool = false
+        /// The type of Scheduler to use.
+        public var schedulerType: StableDiffusionScheduler = .pndmScheduler
+        
+        /// Given the configuration, what mode will be used for generation
+        public var mode: Mode {
+            guard startingImage != nil else {
+                return .textToImage
+            }
+            guard strength < 1.0 else {
+                return .textToImage
+            }
+            return .imageToImage
+        }
+        
+        public init(
+            prompt: String,
+            negativePrompt: String = "",
+            startingImage: CGImage? = nil,
+            strength: Float = 1.0,
+            imageCount: Int = 1,
+            stepCount: Int = 50,
+            seed: UInt32 = 0,
+            guidanceScale: Float = 7.5,
+            disableSafety: Bool = false,
+            schedulerType: StableDiffusionScheduler = .pndmScheduler
+        ) {
+            self.prompt = prompt
+            self.negativePrompt = negativePrompt
+            self.startingImage = startingImage
+            self.strength = strength
+            self.imageCount = imageCount
+            self.stepCount = stepCount
+            self.seed = seed
+            self.guidanceScale = guidanceScale
+            self.disableSafety = disableSafety
+            self.schedulerType = schedulerType
+        }
+        
+    }
+
+}

swift/StableDiffusion/pipeline/StableDiffusionPipeline.swift

@@ -25,36 +25,6 @@ public struct StableDiffusionPipeline: ResourceManaging {
         case startingImageProvidedWithoutEncoder
     }
     
-    public enum Mode {
-        case textToImage
-        case imageToImage
-        // case inPainting
-    }
-    
-    public struct SampleInput: Hashable {
-        public var prompt: String
-        public var negativePrompt: String = ""
-        public var startingImage: CGImage? = nil
-        //public var maskImage: CGImage? = nil
-        public var strength: Float = 1.0
-        public var imageCount: Int = 1
-        public var stepCount: Int = 50
-        public var seed: UInt32 = 0
-        public var guidanceScale: Float = 7.5
-        public var disableSafety: Bool = false
-        public var schedulerType: StableDiffusionScheduler = .pndmScheduler
-        
-        public var mode: Mode {
-            guard startingImage != nil else {
-                return .textToImage
-            }
-            guard strength < 1.0 else {
-                return .textToImage
-            }
-            return .imageToImage
-        }
-    }
-
     /// Model to generate embeddings for tokenized input text
     var textEncoder: TextEncoder
 
@@ -137,45 +107,12 @@ public struct StableDiffusionPipeline: ResourceManaging {
         try safetyChecker?.prewarmResources()
     }
 
-    /// Text to image generation using stable diffusion
-    ///
+    /// Image generation using stable diffusion
     /// - Parameters:
-    ///   - prompt: Text prompt to guide sampling
-    ///   - negativePrompt: Negative text prompt to guide sampling
-    ///   - stepCount: Number of inference steps to perform
-    ///   - imageCount: Number of samples/images to generate for the input prompt
-    ///   - seed: Random seed which
-    ///   - guidanceScale: Controls the influence of the text prompt on sampling process (0=random images)
     ///   - disableSafety: Safety checks are only performed if `self.canSafetyCheck && !disableSafety`
     ///   - progressHandler: Callback to perform after each step, stops on receiving false response
     /// - Returns: An array of `imageCount` optional images.
     ///            The images will be nil if safety checks were performed and found the result to be un-safe
-    public func generateImages(
-        prompt: String,
-        negativePrompt: String = "",
-        startingImage: CGImage? = nil,
-        strength: Float = 1.0,
-        imageCount: Int = 1,
-        stepCount: Int = 50,
-        seed: UInt32 = 0,
-        guidanceScale: Float = 7.5,
-        disableSafety: Bool = false,
-        scheduler schedulerType: StableDiffusionScheduler = .pndmScheduler,
-        progressHandler: (Progress) -> Bool = { _ in true }
-    ) throws -> [CGImage?] {
-        try generateImages(input: SampleInput(
-            prompt: prompt,
-            negativePrompt: negativePrompt,
-            startingImage: startingImage,
-            strength: strength,
-            imageCount: imageCount,
-            stepCount: stepCount,
-            seed: seed,
-            guidanceScale: guidanceScale,
-            disableSafety: disableSafety,
-            schedulerType: schedulerType), progressHandler: progressHandler)
-    }
-    
     public func generateImages(
         input: SampleInput,
         progressHandler: (Progress) -> Bool = { _ in true }

swift/StableDiffusionCLI/main.swift

@@ -119,15 +119,16 @@ struct StableDiffusionSample: ParsableCommand {
         sampleTimer.start()
 
         let images = try pipeline.generateImages(
-            prompt: prompt,
-            negativePrompt: negativePrompt,
-            startingImage: startingImage,
-            strength: strength,
-            imageCount: imageCount,
-            stepCount: stepCount,
-            seed: seed,
-            guidanceScale: guidanceScale,
-            scheduler: scheduler.stableDiffusionScheduler
+            input: StableDiffusionPipeline.SampleInput(
+                prompt: prompt,
+                negativePrompt: negativePrompt,
+                startingImage: startingImage,
+                strength: strength,
+                imageCount: imageCount,
+                stepCount: stepCount,
+                seed: seed,
+                guidanceScale: guidanceScale,
+                schedulerType: scheduler.stableDiffusionScheduler)
         ) { progress in
             sampleTimer.stop()
             handleProgress(progress,sampleTimer)