Pedro Cuenca
2 years ago
commit
be80606e04
@ -0,0 +1,734 @@
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|
||||||
|
IPHONEOS_DEPLOYMENT_TARGET = 16.1;
|
||||||
|
MACOSX_DEPLOYMENT_TARGET = 13.0;
|
||||||
|
MARKETING_VERSION = 1.0;
|
||||||
|
PRODUCT_BUNDLE_IDENTIFIER = com.pcuenca.DiffusionUITests;
|
||||||
|
PRODUCT_NAME = "$(TARGET_NAME)";
|
||||||
|
SDKROOT = auto;
|
||||||
|
SUPPORTED_PLATFORMS = "iphoneos iphonesimulator macosx";
|
||||||
|
SWIFT_EMIT_LOC_STRINGS = NO;
|
||||||
|
SWIFT_VERSION = 5.0;
|
||||||
|
TARGETED_DEVICE_FAMILY = "1,2";
|
||||||
|
TEST_TARGET_NAME = Diffusion;
|
||||||
|
};
|
||||||
|
name = Debug;
|
||||||
|
};
|
||||||
|
EBE755F2293E37DE00806B32 /* Release */ = {
|
||||||
|
isa = XCBuildConfiguration;
|
||||||
|
buildSettings = {
|
||||||
|
ALWAYS_EMBED_SWIFT_STANDARD_LIBRARIES = YES;
|
||||||
|
CODE_SIGN_STYLE = Automatic;
|
||||||
|
CURRENT_PROJECT_VERSION = 1;
|
||||||
|
DEVELOPMENT_TEAM = ZWDJQ796RU;
|
||||||
|
GENERATE_INFOPLIST_FILE = YES;
|
||||||
|
IPHONEOS_DEPLOYMENT_TARGET = 16.1;
|
||||||
|
MACOSX_DEPLOYMENT_TARGET = 13.0;
|
||||||
|
MARKETING_VERSION = 1.0;
|
||||||
|
PRODUCT_BUNDLE_IDENTIFIER = com.pcuenca.DiffusionUITests;
|
||||||
|
PRODUCT_NAME = "$(TARGET_NAME)";
|
||||||
|
SDKROOT = auto;
|
||||||
|
SUPPORTED_PLATFORMS = "iphoneos iphonesimulator macosx";
|
||||||
|
SWIFT_EMIT_LOC_STRINGS = NO;
|
||||||
|
SWIFT_VERSION = 5.0;
|
||||||
|
TARGETED_DEVICE_FAMILY = "1,2";
|
||||||
|
TEST_TARGET_NAME = Diffusion;
|
||||||
|
};
|
||||||
|
name = Release;
|
||||||
|
};
|
||||||
|
/* End XCBuildConfiguration section */
|
||||||
|
|
||||||
|
/* Begin XCConfigurationList section */
|
||||||
|
EBE755C0293E37DD00806B32 /* Build configuration list for PBXProject "Diffusion" */ = {
|
||||||
|
isa = XCConfigurationList;
|
||||||
|
buildConfigurations = (
|
||||||
|
EBE755E8293E37DE00806B32 /* Debug */,
|
||||||
|
EBE755E9293E37DE00806B32 /* Release */,
|
||||||
|
);
|
||||||
|
defaultConfigurationIsVisible = 0;
|
||||||
|
defaultConfigurationName = Release;
|
||||||
|
};
|
||||||
|
EBE755EA293E37DE00806B32 /* Build configuration list for PBXNativeTarget "Diffusion" */ = {
|
||||||
|
isa = XCConfigurationList;
|
||||||
|
buildConfigurations = (
|
||||||
|
EBE755EB293E37DE00806B32 /* Debug */,
|
||||||
|
EBE755EC293E37DE00806B32 /* Release */,
|
||||||
|
);
|
||||||
|
defaultConfigurationIsVisible = 0;
|
||||||
|
defaultConfigurationName = Release;
|
||||||
|
};
|
||||||
|
EBE755ED293E37DE00806B32 /* Build configuration list for PBXNativeTarget "DiffusionTests" */ = {
|
||||||
|
isa = XCConfigurationList;
|
||||||
|
buildConfigurations = (
|
||||||
|
EBE755EE293E37DE00806B32 /* Debug */,
|
||||||
|
EBE755EF293E37DE00806B32 /* Release */,
|
||||||
|
);
|
||||||
|
defaultConfigurationIsVisible = 0;
|
||||||
|
defaultConfigurationName = Release;
|
||||||
|
};
|
||||||
|
EBE755F0293E37DE00806B32 /* Build configuration list for PBXNativeTarget "DiffusionUITests" */ = {
|
||||||
|
isa = XCConfigurationList;
|
||||||
|
buildConfigurations = (
|
||||||
|
EBE755F1293E37DE00806B32 /* Debug */,
|
||||||
|
EBE755F2293E37DE00806B32 /* Release */,
|
||||||
|
);
|
||||||
|
defaultConfigurationIsVisible = 0;
|
||||||
|
defaultConfigurationName = Release;
|
||||||
|
};
|
||||||
|
/* End XCConfigurationList section */
|
||||||
|
|
||||||
|
/* Begin XCRemoteSwiftPackageReference section */
|
||||||
|
EBB5BA5629425E17003A2A5B /* XCRemoteSwiftPackageReference "Path.swift" */ = {
|
||||||
|
isa = XCRemoteSwiftPackageReference;
|
||||||
|
repositoryURL = "https://github.com/mxcl/Path.swift.git";
|
||||||
|
requirement = {
|
||||||
|
kind = upToNextMajorVersion;
|
||||||
|
minimumVersion = 1.0.0;
|
||||||
|
};
|
||||||
|
};
|
||||||
|
EBB5BA5B294504DE003A2A5B /* XCRemoteSwiftPackageReference "ZIPFoundation" */ = {
|
||||||
|
isa = XCRemoteSwiftPackageReference;
|
||||||
|
repositoryURL = "https://github.com/weichsel/ZIPFoundation.git";
|
||||||
|
requirement = {
|
||||||
|
kind = upToNextMajorVersion;
|
||||||
|
minimumVersion = 0.9.9;
|
||||||
|
};
|
||||||
|
};
|
||||||
|
EBB5BA5E2946365A003A2A5B /* XCRemoteSwiftPackageReference "ml-stable-diffusion" */ = {
|
||||||
|
isa = XCRemoteSwiftPackageReference;
|
||||||
|
repositoryURL = "https://github.com/pcuenca/ml-stable-diffusion";
|
||||||
|
requirement = {
|
||||||
|
branch = main;
|
||||||
|
kind = branch;
|
||||||
|
};
|
||||||
|
};
|
||||||
|
/* End XCRemoteSwiftPackageReference section */
|
||||||
|
|
||||||
|
/* Begin XCSwiftPackageProductDependency section */
|
||||||
|
EBB5BA5729425E17003A2A5B /* Path */ = {
|
||||||
|
isa = XCSwiftPackageProductDependency;
|
||||||
|
package = EBB5BA5629425E17003A2A5B /* XCRemoteSwiftPackageReference "Path.swift" */;
|
||||||
|
productName = Path;
|
||||||
|
};
|
||||||
|
EBB5BA5C294504DE003A2A5B /* ZIPFoundation */ = {
|
||||||
|
isa = XCSwiftPackageProductDependency;
|
||||||
|
package = EBB5BA5B294504DE003A2A5B /* XCRemoteSwiftPackageReference "ZIPFoundation" */;
|
||||||
|
productName = ZIPFoundation;
|
||||||
|
};
|
||||||
|
EBB5BA5F2946365A003A2A5B /* StableDiffusion */ = {
|
||||||
|
isa = XCSwiftPackageProductDependency;
|
||||||
|
package = EBB5BA5E2946365A003A2A5B /* XCRemoteSwiftPackageReference "ml-stable-diffusion" */;
|
||||||
|
productName = StableDiffusion;
|
||||||
|
};
|
||||||
|
/* End XCSwiftPackageProductDependency section */
|
||||||
|
};
|
||||||
|
rootObject = EBE755BD293E37DD00806B32 /* Project object */;
|
||||||
|
}
|
||||||
@ -0,0 +1,7 @@
|
|||||||
|
<?xml version="1.0" encoding="UTF-8"?>
|
||||||
|
<Workspace
|
||||||
|
version = "1.0">
|
||||||
|
<FileRef
|
||||||
|
location = "self:">
|
||||||
|
</FileRef>
|
||||||
|
</Workspace>
|
||||||
@ -0,0 +1,8 @@
|
|||||||
|
<?xml version="1.0" encoding="UTF-8"?>
|
||||||
|
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
|
||||||
|
<plist version="1.0">
|
||||||
|
<dict>
|
||||||
|
<key>IDEDidComputeMac32BitWarning</key>
|
||||||
|
<true/>
|
||||||
|
</dict>
|
||||||
|
</plist>
|
||||||
@ -0,0 +1,11 @@
|
|||||||
|
{
|
||||||
|
"colors" : [
|
||||||
|
{
|
||||||
|
"idiom" : "universal"
|
||||||
|
}
|
||||||
|
],
|
||||||
|
"info" : {
|
||||||
|
"author" : "xcode",
|
||||||
|
"version" : 1
|
||||||
|
}
|
||||||
|
}
|
||||||
Binary file not shown.
@ -0,0 +1,65 @@
|
|||||||
|
{
|
||||||
|
"images" : [
|
||||||
|
{
|
||||||
|
"filename" : "labrador-x2.png",
|
||||||
|
"idiom" : "universal",
|
||||||
|
"platform" : "ios",
|
||||||
|
"size" : "1024x1024"
|
||||||
|
},
|
||||||
|
{
|
||||||
|
"idiom" : "mac",
|
||||||
|
"scale" : "1x",
|
||||||
|
"size" : "16x16"
|
||||||
|
},
|
||||||
|
{
|
||||||
|
"idiom" : "mac",
|
||||||
|
"scale" : "2x",
|
||||||
|
"size" : "16x16"
|
||||||
|
},
|
||||||
|
{
|
||||||
|
"idiom" : "mac",
|
||||||
|
"scale" : "1x",
|
||||||
|
"size" : "32x32"
|
||||||
|
},
|
||||||
|
{
|
||||||
|
"idiom" : "mac",
|
||||||
|
"scale" : "2x",
|
||||||
|
"size" : "32x32"
|
||||||
|
},
|
||||||
|
{
|
||||||
|
"idiom" : "mac",
|
||||||
|
"scale" : "1x",
|
||||||
|
"size" : "128x128"
|
||||||
|
},
|
||||||
|
{
|
||||||
|
"idiom" : "mac",
|
||||||
|
"scale" : "2x",
|
||||||
|
"size" : "128x128"
|
||||||
|
},
|
||||||
|
{
|
||||||
|
"idiom" : "mac",
|
||||||
|
"scale" : "1x",
|
||||||
|
"size" : "256x256"
|
||||||
|
},
|
||||||
|
{
|
||||||
|
"idiom" : "mac",
|
||||||
|
"scale" : "2x",
|
||||||
|
"size" : "256x256"
|
||||||
|
},
|
||||||
|
{
|
||||||
|
"idiom" : "mac",
|
||||||
|
"scale" : "1x",
|
||||||
|
"size" : "512x512"
|
||||||
|
},
|
||||||
|
{
|
||||||
|
"filename" : "labrador-x2 1.png",
|
||||||
|
"idiom" : "mac",
|
||||||
|
"scale" : "2x",
|
||||||
|
"size" : "512x512"
|
||||||
|
}
|
||||||
|
],
|
||||||
|
"info" : {
|
||||||
|
"author" : "xcode",
|
||||||
|
"version" : 1
|
||||||
|
}
|
||||||
|
}
|
||||||
|
After Width: | Height: | Size: 1.1 MiB |
|
After Width: | Height: | Size: 1.1 MiB |
@ -0,0 +1,6 @@
|
|||||||
|
{
|
||||||
|
"info" : {
|
||||||
|
"author" : "xcode",
|
||||||
|
"version" : 1
|
||||||
|
}
|
||||||
|
}
|
||||||
@ -0,0 +1,21 @@
|
|||||||
|
{
|
||||||
|
"images" : [
|
||||||
|
{
|
||||||
|
"idiom" : "universal",
|
||||||
|
"scale" : "1x"
|
||||||
|
},
|
||||||
|
{
|
||||||
|
"filename" : "labrador.png",
|
||||||
|
"idiom" : "universal",
|
||||||
|
"scale" : "2x"
|
||||||
|
},
|
||||||
|
{
|
||||||
|
"idiom" : "universal",
|
||||||
|
"scale" : "3x"
|
||||||
|
}
|
||||||
|
],
|
||||||
|
"info" : {
|
||||||
|
"author" : "xcode",
|
||||||
|
"version" : 1
|
||||||
|
}
|
||||||
|
}
|
||||||
|
After Width: | Height: | Size: 436 KiB |
@ -0,0 +1,12 @@
|
|||||||
|
<?xml version="1.0" encoding="UTF-8"?>
|
||||||
|
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
|
||||||
|
<plist version="1.0">
|
||||||
|
<dict>
|
||||||
|
<key>com.apple.security.app-sandbox</key>
|
||||||
|
<true/>
|
||||||
|
<key>com.apple.security.files.user-selected.read-only</key>
|
||||||
|
<true/>
|
||||||
|
<key>com.apple.security.network.client</key>
|
||||||
|
<true/>
|
||||||
|
</dict>
|
||||||
|
</plist>
|
||||||
@ -0,0 +1,20 @@
|
|||||||
|
//
|
||||||
|
// DiffusionApp.swift
|
||||||
|
// Diffusion
|
||||||
|
//
|
||||||
|
// Created by Pedro Cuenca on December 2022.
|
||||||
|
// See LICENSE at https://github.com/huggingface/swift-coreml-diffusers/LICENSE
|
||||||
|
//
|
||||||
|
|
||||||
|
import SwiftUI
|
||||||
|
|
||||||
|
@main
|
||||||
|
struct DiffusionApp: App {
|
||||||
|
var body: some Scene {
|
||||||
|
WindowGroup {
|
||||||
|
LoadingView()
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
extension String: Error {}
|
||||||
@ -0,0 +1,91 @@
|
|||||||
|
//
|
||||||
|
// Downloader.swift
|
||||||
|
// Diffusion
|
||||||
|
//
|
||||||
|
// Created by Pedro Cuenca on December 2022.
|
||||||
|
// See LICENSE at https://github.com/huggingface/swift-coreml-diffusers/LICENSE
|
||||||
|
//
|
||||||
|
|
||||||
|
import Foundation
|
||||||
|
import Combine
|
||||||
|
import Path
|
||||||
|
|
||||||
|
class Downloader: NSObject, ObservableObject {
|
||||||
|
private(set) var destination: URL
|
||||||
|
|
||||||
|
enum DownloadState {
|
||||||
|
case notStarted
|
||||||
|
case downloading(Double)
|
||||||
|
case completed(URL)
|
||||||
|
case failed(Error)
|
||||||
|
}
|
||||||
|
|
||||||
|
private(set) lazy var downloadState: CurrentValueSubject<DownloadState, Never> = CurrentValueSubject(.notStarted)
|
||||||
|
private var stateSubscriber: Cancellable?
|
||||||
|
|
||||||
|
init(from url: URL, to destination: URL) {
|
||||||
|
self.destination = destination
|
||||||
|
super.init()
|
||||||
|
|
||||||
|
// .background allows downloads to proceed in the background
|
||||||
|
let config = URLSessionConfiguration.background(withIdentifier: "net.pcuenca.diffusion.download")
|
||||||
|
let urlSession = URLSession(configuration: config, delegate: self, delegateQueue: OperationQueue())
|
||||||
|
downloadState.value = .downloading(0)
|
||||||
|
urlSession.getAllTasks { tasks in
|
||||||
|
// If there's an existing pending background task, let it proceed, otherwise start a new one.
|
||||||
|
// TODO: check URL when we support downloading more models.
|
||||||
|
if tasks.first == nil {
|
||||||
|
urlSession.downloadTask(with: url).resume()
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
@discardableResult
|
||||||
|
func waitUntilDone() throws -> URL {
|
||||||
|
// It's either this, or stream the bytes ourselves (add to a buffer, save to disk, etc; boring and finicky)
|
||||||
|
let semaphore = DispatchSemaphore(value: 0)
|
||||||
|
stateSubscriber = downloadState.sink { state in
|
||||||
|
switch state {
|
||||||
|
case .completed: semaphore.signal()
|
||||||
|
case .failed: semaphore.signal()
|
||||||
|
default: break
|
||||||
|
}
|
||||||
|
}
|
||||||
|
semaphore.wait()
|
||||||
|
|
||||||
|
switch downloadState.value {
|
||||||
|
case .completed(let url): return url
|
||||||
|
case .failed(let error): throw error
|
||||||
|
default: throw("Should never happen, lol")
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
extension Downloader: URLSessionDelegate, URLSessionDownloadDelegate {
|
||||||
|
func urlSession(_: URLSession, downloadTask: URLSessionDownloadTask, didWriteData _: Int64, totalBytesWritten _: Int64, totalBytesExpectedToWrite _: Int64) {
|
||||||
|
downloadState.value = .downloading(downloadTask.progress.fractionCompleted)
|
||||||
|
}
|
||||||
|
|
||||||
|
func urlSession(_: URLSession, downloadTask _: URLSessionDownloadTask, didFinishDownloadingTo location: URL) {
|
||||||
|
guard let path = Path(url: location) else {
|
||||||
|
downloadState.value = .failed("Invalid download location received: \(location)")
|
||||||
|
return
|
||||||
|
}
|
||||||
|
guard let toPath = Path(url: destination) else {
|
||||||
|
downloadState.value = .failed("Invalid destination: \(destination)")
|
||||||
|
return
|
||||||
|
}
|
||||||
|
do {
|
||||||
|
try path.move(to: toPath, overwrite: true)
|
||||||
|
downloadState.value = .completed(destination)
|
||||||
|
} catch {
|
||||||
|
downloadState.value = .failed(error)
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
func urlSession(_: URLSession, task: URLSessionTask, didCompleteWithError error: Error?) {
|
||||||
|
if let error = error {
|
||||||
|
downloadState.value = .failed(error)
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
@ -0,0 +1,56 @@
|
|||||||
|
//
|
||||||
|
// Pipeline.swift
|
||||||
|
// Diffusion
|
||||||
|
//
|
||||||
|
// Created by Pedro Cuenca on December 2022.
|
||||||
|
// See LICENSE at https://github.com/huggingface/swift-coreml-diffusers/LICENSE
|
||||||
|
//
|
||||||
|
|
||||||
|
import Foundation
|
||||||
|
import CoreML
|
||||||
|
import Combine
|
||||||
|
|
||||||
|
import StableDiffusion
|
||||||
|
|
||||||
|
typealias StableDiffusionProgress = StableDiffusionPipeline.Progress
|
||||||
|
|
||||||
|
class Pipeline {
|
||||||
|
let pipeline: StableDiffusionPipeline
|
||||||
|
|
||||||
|
var progress: StableDiffusionProgress? = nil {
|
||||||
|
didSet {
|
||||||
|
progressPublisher.value = progress
|
||||||
|
}
|
||||||
|
}
|
||||||
|
lazy private(set) var progressPublisher: CurrentValueSubject<StableDiffusionProgress?, Never> = CurrentValueSubject(progress)
|
||||||
|
|
||||||
|
|
||||||
|
init(_ pipeline: StableDiffusionPipeline) {
|
||||||
|
self.pipeline = pipeline
|
||||||
|
}
|
||||||
|
|
||||||
|
func generate(prompt: String, scheduler: StableDiffusionScheduler, numInferenceSteps stepCount: Int = 50, seed: UInt32? = nil) throws -> CGImage {
|
||||||
|
let beginDate = Date()
|
||||||
|
print("Generating...")
|
||||||
|
let theSeed = seed ?? UInt32.random(in: 0..<UInt32.max)
|
||||||
|
let images = try pipeline.generateImages(
|
||||||
|
prompt: prompt,
|
||||||
|
imageCount: 1,
|
||||||
|
stepCount: stepCount,
|
||||||
|
seed: theSeed,
|
||||||
|
scheduler: scheduler
|
||||||
|
) { progress in
|
||||||
|
handleProgress(progress)
|
||||||
|
return true
|
||||||
|
}
|
||||||
|
print("Got images: \(images) in \(Date().timeIntervalSince(beginDate))")
|
||||||
|
|
||||||
|
// unwrap the 1 image we asked for
|
||||||
|
guard let image = images.compactMap({ $0 }).first else { throw "Generation failed" }
|
||||||
|
return image
|
||||||
|
}
|
||||||
|
|
||||||
|
func handleProgress(_ progress: StableDiffusionPipeline.Progress) {
|
||||||
|
self.progress = progress
|
||||||
|
}
|
||||||
|
}
|
||||||
@ -0,0 +1,141 @@
|
|||||||
|
//
|
||||||
|
// PipelineLoader.swift
|
||||||
|
// Diffusion
|
||||||
|
//
|
||||||
|
// Created by Pedro Cuenca on December 2022.
|
||||||
|
// See LICENSE at https://github.com/huggingface/swift-coreml-diffusers/LICENSE
|
||||||
|
//
|
||||||
|
|
||||||
|
|
||||||
|
import CoreML
|
||||||
|
import Combine
|
||||||
|
|
||||||
|
import Path
|
||||||
|
import ZIPFoundation
|
||||||
|
import StableDiffusion
|
||||||
|
|
||||||
|
class PipelineLoader {
|
||||||
|
static let models = Path.applicationSupport / "models"
|
||||||
|
|
||||||
|
let url: URL
|
||||||
|
private var downloadSubscriber: Cancellable?
|
||||||
|
|
||||||
|
init(url: URL) {
|
||||||
|
self.url = url
|
||||||
|
state = .undetermined
|
||||||
|
setInitialState()
|
||||||
|
}
|
||||||
|
|
||||||
|
enum PipelinePreparationPhase {
|
||||||
|
case undetermined
|
||||||
|
case waitingToDownload
|
||||||
|
case downloading(Double)
|
||||||
|
case downloaded
|
||||||
|
case uncompressing
|
||||||
|
case readyOnDisk
|
||||||
|
case loaded
|
||||||
|
case failed(Error)
|
||||||
|
}
|
||||||
|
|
||||||
|
var state: PipelinePreparationPhase {
|
||||||
|
didSet {
|
||||||
|
statePublisher.value = state
|
||||||
|
}
|
||||||
|
}
|
||||||
|
private(set) lazy var statePublisher: CurrentValueSubject<PipelinePreparationPhase, Never> = CurrentValueSubject(state)
|
||||||
|
|
||||||
|
func setInitialState() {
|
||||||
|
if ready {
|
||||||
|
state = .readyOnDisk
|
||||||
|
return
|
||||||
|
}
|
||||||
|
if downloaded {
|
||||||
|
state = .downloaded
|
||||||
|
return
|
||||||
|
}
|
||||||
|
state = .waitingToDownload
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
extension PipelineLoader {
|
||||||
|
static func removeAll() {
|
||||||
|
try? models.delete()
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
extension PipelineLoader {
|
||||||
|
var filename: String {
|
||||||
|
return url.lastPathComponent
|
||||||
|
}
|
||||||
|
|
||||||
|
var downloadedPath: Path { PipelineLoader.models / filename }
|
||||||
|
var downloadedURL: URL { downloadedPath.url }
|
||||||
|
|
||||||
|
var uncompressPath: Path { downloadedPath.parent }
|
||||||
|
|
||||||
|
var packagesFilename: String { downloadedPath.basename(dropExtension: true) }
|
||||||
|
var compiledPath: Path { downloadedPath.parent/packagesFilename }
|
||||||
|
|
||||||
|
var downloaded: Bool {
|
||||||
|
return downloadedPath.exists
|
||||||
|
}
|
||||||
|
|
||||||
|
var ready: Bool {
|
||||||
|
return compiledPath.exists
|
||||||
|
}
|
||||||
|
|
||||||
|
// TODO: maybe receive Progress to add another progress as child
|
||||||
|
func prepare() async throws -> Pipeline {
|
||||||
|
do {
|
||||||
|
try PipelineLoader.models.mkdir(.p)
|
||||||
|
try await download()
|
||||||
|
try await unzip()
|
||||||
|
let pipeline = try await load(url: compiledPath.url)
|
||||||
|
return Pipeline(pipeline)
|
||||||
|
} catch {
|
||||||
|
state = .failed(error)
|
||||||
|
throw error
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
@discardableResult
|
||||||
|
func download() async throws -> URL {
|
||||||
|
if ready || downloaded { return downloadedURL }
|
||||||
|
|
||||||
|
let downloader = Downloader(from: url, to: downloadedURL)
|
||||||
|
downloadSubscriber = downloader.downloadState.sink { state in
|
||||||
|
if case .downloading(let progress) = state {
|
||||||
|
print(progress)
|
||||||
|
self.state = .downloading(progress)
|
||||||
|
}
|
||||||
|
}
|
||||||
|
try downloader.waitUntilDone()
|
||||||
|
return downloadedURL
|
||||||
|
}
|
||||||
|
|
||||||
|
func unzip() async throws {
|
||||||
|
guard downloaded else { return }
|
||||||
|
state = .uncompressing
|
||||||
|
do {
|
||||||
|
try FileManager().unzipItem(at: downloadedURL, to: uncompressPath.url)
|
||||||
|
} catch {
|
||||||
|
// Cleanup if error occurs while unzipping
|
||||||
|
try uncompressPath.delete()
|
||||||
|
throw error
|
||||||
|
}
|
||||||
|
try downloadedPath.delete()
|
||||||
|
state = .readyOnDisk
|
||||||
|
}
|
||||||
|
|
||||||
|
func load(url: URL) async throws -> StableDiffusionPipeline {
|
||||||
|
let beginDate = Date()
|
||||||
|
let configuration = MLModelConfiguration()
|
||||||
|
configuration.computeUnits = .cpuAndGPU // .all works for v1.4, but not for v1.5. TODO: measure performance on different devices
|
||||||
|
let pipeline = try StableDiffusionPipeline(resourcesAt: url,
|
||||||
|
configuration: configuration,
|
||||||
|
disableSafety: false)
|
||||||
|
print("Pipeline loaded in \(Date().timeIntervalSince(beginDate))")
|
||||||
|
state = .loaded
|
||||||
|
return pipeline
|
||||||
|
}
|
||||||
|
}
|
||||||
@ -0,0 +1,6 @@
|
|||||||
|
{
|
||||||
|
"info" : {
|
||||||
|
"author" : "xcode",
|
||||||
|
"version" : 1
|
||||||
|
}
|
||||||
|
}
|
||||||
@ -0,0 +1,97 @@
|
|||||||
|
//
|
||||||
|
// Loading.swift
|
||||||
|
// Diffusion
|
||||||
|
//
|
||||||
|
// Created by Pedro Cuenca on December 2022.
|
||||||
|
// See LICENSE at https://github.com/huggingface/swift-coreml-diffusers/LICENSE
|
||||||
|
//
|
||||||
|
|
||||||
|
import SwiftUI
|
||||||
|
import Combine
|
||||||
|
|
||||||
|
let PIPELINE_URL = "https://huggingface.co/pcuenq/coreml-stable-diffusion/resolve/main/coreml-stable-diffusion-v1-5_original_compiled.zip"
|
||||||
|
|
||||||
|
class DiffusionGlobals: ObservableObject {
|
||||||
|
@Published var pipeline: Pipeline? = nil
|
||||||
|
}
|
||||||
|
|
||||||
|
struct LoadingView: View {
|
||||||
|
@StateObject var context = DiffusionGlobals()
|
||||||
|
|
||||||
|
@State private var preparationPhase = "Downloading…"
|
||||||
|
@State private var downloadProgress: Double = 0
|
||||||
|
|
||||||
|
enum CurrentView {
|
||||||
|
case loading
|
||||||
|
case textToImage
|
||||||
|
case error(String)
|
||||||
|
}
|
||||||
|
@State private var currentView: CurrentView = .loading
|
||||||
|
|
||||||
|
@State private var stateSubscriber: Cancellable?
|
||||||
|
|
||||||
|
var body: some View {
|
||||||
|
VStack {
|
||||||
|
switch currentView {
|
||||||
|
case .textToImage: TextToImage().transition(.opacity)
|
||||||
|
case .error(let message): ErrorPopover(errorMessage: message).transition(.move(edge: .top))
|
||||||
|
case .loading:
|
||||||
|
// TODO: Don't present progress view if the pipeline is cached
|
||||||
|
ProgressView(preparationPhase, value: downloadProgress, total: 1).padding()
|
||||||
|
}
|
||||||
|
}
|
||||||
|
.animation(.easeIn, value: currentView)
|
||||||
|
.environmentObject(context)
|
||||||
|
.onAppear {
|
||||||
|
Task.init {
|
||||||
|
let loader = PipelineLoader(url: URL(string: PIPELINE_URL)!)
|
||||||
|
stateSubscriber = loader.statePublisher.sink { state in
|
||||||
|
DispatchQueue.main.async {
|
||||||
|
switch state {
|
||||||
|
case .downloading(let progress):
|
||||||
|
preparationPhase = "Downloading"
|
||||||
|
downloadProgress = progress
|
||||||
|
case .uncompressing:
|
||||||
|
preparationPhase = "Uncompressing"
|
||||||
|
downloadProgress = 1
|
||||||
|
case .readyOnDisk:
|
||||||
|
preparationPhase = "Loading"
|
||||||
|
downloadProgress = 1
|
||||||
|
default:
|
||||||
|
break
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
do {
|
||||||
|
context.pipeline = try await loader.prepare()
|
||||||
|
self.currentView = .textToImage
|
||||||
|
} catch {
|
||||||
|
self.currentView = .error("Could not load model, error: \(error)")
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
// Required by .animation
|
||||||
|
extension LoadingView.CurrentView: Equatable {}
|
||||||
|
|
||||||
|
struct ErrorPopover: View {
|
||||||
|
var errorMessage: String
|
||||||
|
|
||||||
|
var body: some View {
|
||||||
|
Text(errorMessage)
|
||||||
|
.font(.headline)
|
||||||
|
.padding()
|
||||||
|
.foregroundColor(.red)
|
||||||
|
.background(Color.white)
|
||||||
|
.cornerRadius(8)
|
||||||
|
.shadow(color: Color.black.opacity(0.2), radius: 8, x: 0, y: 4)
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
struct LoadingView_Previews: PreviewProvider {
|
||||||
|
static var previews: some View {
|
||||||
|
LoadingView()
|
||||||
|
}
|
||||||
|
}
|
||||||
@ -0,0 +1,104 @@
|
|||||||
|
//
|
||||||
|
// TextToImage.swift
|
||||||
|
// Diffusion
|
||||||
|
//
|
||||||
|
// Created by Pedro Cuenca on December 2022.
|
||||||
|
// See LICENSE at https://github.com/huggingface/swift-coreml-diffusers/LICENSE
|
||||||
|
//
|
||||||
|
|
||||||
|
import SwiftUI
|
||||||
|
import Combine
|
||||||
|
import StableDiffusion
|
||||||
|
|
||||||
|
// TODO: bind to UI controls
|
||||||
|
let scheduler = StableDiffusionScheduler.dpmpp
|
||||||
|
let steps = 25
|
||||||
|
let seed: UInt32? = nil
|
||||||
|
|
||||||
|
func generate(pipeline: Pipeline?, prompt: String) async -> CGImage? {
|
||||||
|
guard let pipeline = pipeline else { return nil }
|
||||||
|
return try? pipeline.generate(prompt: prompt, scheduler: scheduler, numInferenceSteps: steps, seed: seed)
|
||||||
|
}
|
||||||
|
|
||||||
|
enum GenerationState {
|
||||||
|
case startup
|
||||||
|
case running(StableDiffusionProgress?)
|
||||||
|
case idle
|
||||||
|
}
|
||||||
|
|
||||||
|
struct ImageWithPlaceholder: View {
|
||||||
|
var image: Binding<CGImage?>
|
||||||
|
var state: Binding<GenerationState>
|
||||||
|
|
||||||
|
var body: some View {
|
||||||
|
switch state.wrappedValue {
|
||||||
|
case .startup: return AnyView(Image("placeholder").resizable())
|
||||||
|
case .running(let progress):
|
||||||
|
guard let progress = progress, progress.stepCount > 0 else {
|
||||||
|
// The first time it takes a little bit before generation starts
|
||||||
|
return AnyView(ProgressView())
|
||||||
|
}
|
||||||
|
let step = Int(progress.step) + 1
|
||||||
|
let fraction = Double(step) / Double(progress.stepCount)
|
||||||
|
let label = "Step \(step) of \(progress.stepCount)"
|
||||||
|
return AnyView(ProgressView(label, value: fraction, total: 1).padding())
|
||||||
|
default:
|
||||||
|
guard let theImage = image.wrappedValue else {
|
||||||
|
return AnyView(Image(systemName: "exclamationmark.triangle").resizable())
|
||||||
|
}
|
||||||
|
|
||||||
|
let imageView = Image(theImage, scale: 1, label: Text("generated"))
|
||||||
|
return AnyView(
|
||||||
|
VStack {
|
||||||
|
imageView.resizable().clipShape(RoundedRectangle(cornerRadius: 20))
|
||||||
|
ShareLink(item: imageView, preview: SharePreview("Generated image", image: imageView))
|
||||||
|
})
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
struct TextToImage: View {
|
||||||
|
@EnvironmentObject var context: DiffusionGlobals
|
||||||
|
|
||||||
|
@State private var prompt = "Labrador in the style of Vermeer"
|
||||||
|
@State private var image: CGImage? = nil
|
||||||
|
@State private var state: GenerationState = .startup
|
||||||
|
|
||||||
|
@State private var progressSubscriber: Cancellable?
|
||||||
|
|
||||||
|
func submit() {
|
||||||
|
if case .running = state { return }
|
||||||
|
Task {
|
||||||
|
state = .running(nil)
|
||||||
|
image = await generate(pipeline: context.pipeline, prompt: prompt)
|
||||||
|
state = .idle
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
var body: some View {
|
||||||
|
VStack {
|
||||||
|
HStack {
|
||||||
|
TextField("Prompt", text: $prompt)
|
||||||
|
.textFieldStyle(.roundedBorder)
|
||||||
|
.onSubmit {
|
||||||
|
submit()
|
||||||
|
}
|
||||||
|
Button("Generate") {
|
||||||
|
submit()
|
||||||
|
}
|
||||||
|
.padding()
|
||||||
|
.buttonStyle(.borderedProminent)
|
||||||
|
}
|
||||||
|
ImageWithPlaceholder(image: $image, state: $state)
|
||||||
|
.scaledToFit()
|
||||||
|
Spacer()
|
||||||
|
}
|
||||||
|
.padding()
|
||||||
|
.onAppear {
|
||||||
|
progressSubscriber = context.pipeline!.progressPublisher.sink { progress in
|
||||||
|
guard let progress = progress else { return }
|
||||||
|
state = .running(progress)
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
@ -0,0 +1,35 @@
|
|||||||
|
//
|
||||||
|
// DiffusionTests.swift
|
||||||
|
// DiffusionTests
|
||||||
|
//
|
||||||
|
// Created by Pedro Cuenca on December 2022.
|
||||||
|
//
|
||||||
|
|
||||||
|
import XCTest
|
||||||
|
|
||||||
|
final class DiffusionTests: XCTestCase {
|
||||||
|
|
||||||
|
override func setUpWithError() throws {
|
||||||
|
// Put setup code here. This method is called before the invocation of each test method in the class.
|
||||||
|
}
|
||||||
|
|
||||||
|
override func tearDownWithError() throws {
|
||||||
|
// Put teardown code here. This method is called after the invocation of each test method in the class.
|
||||||
|
}
|
||||||
|
|
||||||
|
func testExample() throws {
|
||||||
|
// This is an example of a functional test case.
|
||||||
|
// Use XCTAssert and related functions to verify your tests produce the correct results.
|
||||||
|
// Any test you write for XCTest can be annotated as throws and async.
|
||||||
|
// Mark your test throws to produce an unexpected failure when your test encounters an uncaught error.
|
||||||
|
// Mark your test async to allow awaiting for asynchronous code to complete. Check the results with assertions afterwards.
|
||||||
|
}
|
||||||
|
|
||||||
|
func testPerformanceExample() throws {
|
||||||
|
// This is an example of a performance test case.
|
||||||
|
measure {
|
||||||
|
// Put the code you want to measure the time of here.
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
}
|
||||||
@ -0,0 +1,32 @@
|
|||||||
|
//
|
||||||
|
// DiffusionUITestsLaunchTests.swift
|
||||||
|
// DiffusionUITests
|
||||||
|
//
|
||||||
|
// Created by Pedro Cuenca on December 2022.
|
||||||
|
//
|
||||||
|
|
||||||
|
import XCTest
|
||||||
|
|
||||||
|
final class DiffusionUITestsLaunchTests: XCTestCase {
|
||||||
|
|
||||||
|
override class var runsForEachTargetApplicationUIConfiguration: Bool {
|
||||||
|
true
|
||||||
|
}
|
||||||
|
|
||||||
|
override func setUpWithError() throws {
|
||||||
|
continueAfterFailure = false
|
||||||
|
}
|
||||||
|
|
||||||
|
func testLaunch() throws {
|
||||||
|
let app = XCUIApplication()
|
||||||
|
app.launch()
|
||||||
|
|
||||||
|
// Insert steps here to perform after app launch but before taking a screenshot,
|
||||||
|
// such as logging into a test account or navigating somewhere in the app
|
||||||
|
|
||||||
|
let attachment = XCTAttachment(screenshot: app.screenshot())
|
||||||
|
attachment.name = "Launch Screen"
|
||||||
|
attachment.lifetime = .keepAlways
|
||||||
|
add(attachment)
|
||||||
|
}
|
||||||
|
}
|
||||||
@ -0,0 +1,201 @@
|
|||||||
|
Apache License
|
||||||
|
Version 2.0, January 2004
|
||||||
|
http://www.apache.org/licenses/
|
||||||
|
|
||||||
|
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
|
||||||
|
|
||||||
|
1. Definitions.
|
||||||
|
|
||||||
|
"License" shall mean the terms and conditions for use, reproduction,
|
||||||
|
and distribution as defined by Sections 1 through 9 of this document.
|
||||||
|
|
||||||
|
"Licensor" shall mean the copyright owner or entity authorized by
|
||||||
|
the copyright owner that is granting the License.
|
||||||
|
|
||||||
|
"Legal Entity" shall mean the union of the acting entity and all
|
||||||
|
other entities that control, are controlled by, or are under common
|
||||||
|
control with that entity. For the purposes of this definition,
|
||||||
|
"control" means (i) the power, direct or indirect, to cause the
|
||||||
|
direction or management of such entity, whether by contract or
|
||||||
|
otherwise, or (ii) ownership of fifty percent (50%) or more of the
|
||||||
|
outstanding shares, or (iii) beneficial ownership of such entity.
|
||||||
|
|
||||||
|
"You" (or "Your") shall mean an individual or Legal Entity
|
||||||
|
exercising permissions granted by this License.
|
||||||
|
|
||||||
|
"Source" form shall mean the preferred form for making modifications,
|
||||||
|
including but not limited to software source code, documentation
|
||||||
|
source, and configuration files.
|
||||||
|
|
||||||
|
"Object" form shall mean any form resulting from mechanical
|
||||||
|
transformation or translation of a Source form, including but
|
||||||
|
not limited to compiled object code, generated documentation,
|
||||||
|
and conversions to other media types.
|
||||||
|
|
||||||
|
"Work" shall mean the work of authorship, whether in Source or
|
||||||
|
Object form, made available under the License, as indicated by a
|
||||||
|
copyright notice that is included in or attached to the work
|
||||||
|
(an example is provided in the Appendix below).
|
||||||
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|
||||||
|
"Derivative Works" shall mean any work, whether in Source or Object
|
||||||
|
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|
||||||
|
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|
||||||
|
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|
||||||
|
of this License, Derivative Works shall not include works that remain
|
||||||
|
separable from, or merely link (or bind by name) to the interfaces of,
|
||||||
|
the Work and Derivative Works thereof.
|
||||||
|
|
||||||
|
"Contribution" shall mean any work of authorship, including
|
||||||
|
the original version of the Work and any modifications or additions
|
||||||
|
to that Work or Derivative Works thereof, that is intentionally
|
||||||
|
submitted to Licensor for inclusion in the Work by the copyright owner
|
||||||
|
or by an individual or Legal Entity authorized to submit on behalf of
|
||||||
|
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|
||||||
|
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|
||||||
|
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||||||
|
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|
||||||
|
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|
||||||
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|
||||||
|
excluding communication that is conspicuously marked or otherwise
|
||||||
|
designated in writing by the copyright owner as "Not a Contribution."
|
||||||
|
|
||||||
|
"Contributor" shall mean Licensor and any individual or Legal Entity
|
||||||
|
on behalf of whom a Contribution has been received by Licensor and
|
||||||
|
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|
||||||
|
|
||||||
|
2. Grant of Copyright License. Subject to the terms and conditions of
|
||||||
|
this License, each Contributor hereby grants to You a perpetual,
|
||||||
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|
||||||
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|
||||||
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|
||||||
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||||||
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|
||||||
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3. Grant of Patent License. Subject to the terms and conditions of
|
||||||
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|
||||||
|
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|
||||||
|
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|
||||||
|
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|
||||||
|
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|
||||||
|
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|
||||||
|
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|
||||||
|
with the Work to which such Contribution(s) was submitted. If You
|
||||||
|
institute patent litigation against any entity (including a
|
||||||
|
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|
||||||
|
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|
||||||
|
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|
||||||
|
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|
||||||
|
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|
||||||
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|
||||||
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4. Redistribution. You may reproduce and distribute copies of the
|
||||||
|
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|
||||||
|
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|
||||||
|
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|
||||||
|
|
||||||
|
(a) You must give any other recipients of the Work or
|
||||||
|
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|
||||||
|
|
||||||
|
(b) You must cause any modified files to carry prominent notices
|
||||||
|
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|
||||||
|
|
||||||
|
(c) You must retain, in the Source form of any Derivative Works
|
||||||
|
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|
||||||
|
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|
||||||
|
excluding those notices that do not pertain to any part of
|
||||||
|
the Derivative Works; and
|
||||||
|
|
||||||
|
(d) If the Work includes a "NOTICE" text file as part of its
|
||||||
|
distribution, then any Derivative Works that You distribute must
|
||||||
|
include a readable copy of the attribution notices contained
|
||||||
|
within such NOTICE file, excluding those notices that do not
|
||||||
|
pertain to any part of the Derivative Works, in at least one
|
||||||
|
of the following places: within a NOTICE text file distributed
|
||||||
|
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|
||||||
|
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|
||||||
|
within a display generated by the Derivative Works, if and
|
||||||
|
wherever such third-party notices normally appear. The contents
|
||||||
|
of the NOTICE file are for informational purposes only and
|
||||||
|
do not modify the License. You may add Your own attribution
|
||||||
|
notices within Derivative Works that You distribute, alongside
|
||||||
|
or as an addendum to the NOTICE text from the Work, provided
|
||||||
|
that such additional attribution notices cannot be construed
|
||||||
|
as modifying the License.
|
||||||
|
|
||||||
|
You may add Your own copyright statement to Your modifications and
|
||||||
|
may provide additional or different license terms and conditions
|
||||||
|
for use, reproduction, or distribution of Your modifications, or
|
||||||
|
for any such Derivative Works as a whole, provided Your use,
|
||||||
|
reproduction, and distribution of the Work otherwise complies with
|
||||||
|
the conditions stated in this License.
|
||||||
|
|
||||||
|
5. Submission of Contributions. Unless You explicitly state otherwise,
|
||||||
|
any Contribution intentionally submitted for inclusion in the Work
|
||||||
|
by You to the Licensor shall be under the terms and conditions of
|
||||||
|
this License, without any additional terms or conditions.
|
||||||
|
Notwithstanding the above, nothing herein shall supersede or modify
|
||||||
|
the terms of any separate license agreement you may have executed
|
||||||
|
with Licensor regarding such Contributions.
|
||||||
|
|
||||||
|
6. Trademarks. This License does not grant permission to use the trade
|
||||||
|
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|
||||||
|
except as required for reasonable and customary use in describing the
|
||||||
|
origin of the Work and reproducing the content of the NOTICE file.
|
||||||
|
|
||||||
|
7. Disclaimer of Warranty. Unless required by applicable law or
|
||||||
|
agreed to in writing, Licensor provides the Work (and each
|
||||||
|
Contributor provides its Contributions) on an "AS IS" BASIS,
|
||||||
|
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
|
||||||
|
implied, including, without limitation, any warranties or conditions
|
||||||
|
of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
|
||||||
|
PARTICULAR PURPOSE. You are solely responsible for determining the
|
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|
appropriateness of using or redistributing the Work and assume any
|
||||||
|
risks associated with Your exercise of permissions under this License.
|
||||||
|
|
||||||
|
8. Limitation of Liability. In no event and under no legal theory,
|
||||||
|
whether in tort (including negligence), contract, or otherwise,
|
||||||
|
unless required by applicable law (such as deliberate and grossly
|
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|
negligent acts) or agreed to in writing, shall any Contributor be
|
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|
liable to You for damages, including any direct, indirect, special,
|
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incidental, or consequential damages of any character arising as a
|
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|
result of this License or out of the use or inability to use the
|
||||||
|
Work (including but not limited to damages for loss of goodwill,
|
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|
work stoppage, computer failure or malfunction, or any and all
|
||||||
|
other commercial damages or losses), even if such Contributor
|
||||||
|
has been advised of the possibility of such damages.
|
||||||
|
|
||||||
|
9. Accepting Warranty or Additional Liability. While redistributing
|
||||||
|
the Work or Derivative Works thereof, You may choose to offer,
|
||||||
|
and charge a fee for, acceptance of support, warranty, indemnity,
|
||||||
|
or other liability obligations and/or rights consistent with this
|
||||||
|
License. However, in accepting such obligations, You may act only
|
||||||
|
on Your own behalf and on Your sole responsibility, not on behalf
|
||||||
|
of any other Contributor, and only if You agree to indemnify,
|
||||||
|
defend, and hold each Contributor harmless for any liability
|
||||||
|
incurred by, or claims asserted against, such Contributor by reason
|
||||||
|
of your accepting any such warranty or additional liability.
|
||||||
|
|
||||||
|
END OF TERMS AND CONDITIONS
|
||||||
|
|
||||||
|
APPENDIX: How to apply the Apache License to your work.
|
||||||
|
|
||||||
|
To apply the Apache License to your work, attach the following
|
||||||
|
boilerplate notice, with the fields enclosed by brackets "[]"
|
||||||
|
replaced with your own identifying information. (Don't include
|
||||||
|
the brackets!) The text should be enclosed in the appropriate
|
||||||
|
comment syntax for the file format. We also recommend that a
|
||||||
|
file or class name and description of purpose be included on the
|
||||||
|
same "printed page" as the copyright notice for easier
|
||||||
|
identification within third-party archives.
|
||||||
|
|
||||||
|
Copyright 2022 Hugging Face SAS.
|
||||||
|
|
||||||
|
Licensed under the Apache License, Version 2.0 (the "License");
|
||||||
|
you may not use this file except in compliance with the License.
|
||||||
|
You may obtain a copy of the License at
|
||||||
|
|
||||||
|
http://www.apache.org/licenses/LICENSE-2.0
|
||||||
|
|
||||||
|
Unless required by applicable law or agreed to in writing, software
|
||||||
|
distributed under the License is distributed on an "AS IS" BASIS,
|
||||||
|
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||||
|
See the License for the specific language governing permissions and
|
||||||
|
limitations under the License.
|
||||||
@ -0,0 +1,23 @@
|
|||||||
|
# Diffusion
|
||||||
|
|
||||||
|
This is a simple app that shows how to integrate Apple's [Core ML Stable Diffusion implementation](https://github.com/apple/ml-stable-diffusion) in a native Swift UI application. It can be used for faster iteration, or as sample code for other use cases.
|
||||||
|
|
||||||
|
On first launch, the application downloads a zipped archive with a Core ML version of Runway's Stable Diffusion v1.5, from [this location in the Hugging Face Hub](https://huggingface.co/pcuenq/coreml-stable-diffusion/tree/main). This process takes a while, as several GB of data have to be downloaded and unarchived.
|
||||||
|
|
||||||
|
For faster inference, we use a very fast scheduler: [DPM-Solver++](https://github.com/LuChengTHU/dpm-solver) that we ported to Swift. Since this scheduler is still not available in Apple's GitHub repository, the application depends on the following fork instead: https://github.com/pcuenca/ml-stable-diffusion. Our Swift port is based on [Diffusers' DPMSolverMultistepScheduler](https://github.com/huggingface/diffusers/blob/main/src/diffusers/schedulers/scheduling_dpmsolver_multistep.py), with a number of simplifications.
|
||||||
|
|
||||||
|
## Limitations
|
||||||
|
|
||||||
|
- Requires the latest betas of iOS 16.2, macOS Ventura 13.1, Xcode 14.2. They are all in the Release Candidate stage.
|
||||||
|
- Although the app is platform independent, execution fails on iPhone 13 Pro, possibly due to memory constraints. We haven't tested on M2 iPads with 8 or 16 GB of memory.
|
||||||
|
- The UI does not expose a way to configure the scheduler, number of inference steps, or generation seed. These are all available in the underlying code.
|
||||||
|
- A single model (Stable Diffusion v1.5) is considered. The Core ML compute units have been hardcoded to CPU and GPU, since that's what gives best results on my Mac (M1 Max MacBook Pro).
|
||||||
|
- Sometimes generation returns a `nil` image. This needs to be investigated.
|
||||||
|
|
||||||
|
## Next Steps
|
||||||
|
|
||||||
|
- Improve UI. Allow the user to select generation parameters.
|
||||||
|
- Allow other models to run. Provide a recommended "compute units" configuration based on model and platform.
|
||||||
|
- Implement other interesting schedulers.
|
||||||
|
- Implement negative prompts.
|
||||||
|
- Explore other features (image to image, for example).
|
||||||
Loading…
Reference in new issue