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Fix low resolution avatars being shown on profile

This commit is contained in:
Shadowfacts 2021-01-20 18:31:30 -05:00
parent 2761c05a01
commit d1c45a87e6
4 changed files with 31 additions and 32 deletions
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10
Tusker/Caching/ImageCache.swift
View File

@ -34,10 +34,10 @@ class ImageCache {
self.cache = ImageDataCache(name: name, memoryExpiry: memoryExpiry, diskExpiry: diskExpiry, storeOriginalDataInMemory: diskExpiry == nil, desiredPixelSize: pixelSize)
}
func get(_ url: URL, completion: ((Data?, UIImage?) -> Void)?) -> Request? {
func get(_ url: URL, loadOriginal: Bool = false, completion: ((Data?, UIImage?) -> Void)?) -> Request? {
let key = url.absoluteString
if !ImageCache.disableCaching,
let entry = try? cache.get(key) {
let entry = try? cache.get(key, loadOriginal: loadOriginal) {
if let completion = completion {
backgroundQueue.async {
completion(entry.data, entry.image)
@ -73,7 +73,7 @@ class ImageCache {
private func createGroup(url: URL) -> RequestGroup {
let group = RequestGroup(url: url) { (data, image) in
if let data = data {
try? self.cache.set(url.absoluteString, data: data)
try? self.cache.set(url.absoluteString, data: data, image: image)
}
self.groups.removeValueWithoutReturning(forKey: url)
}
@ -85,8 +85,8 @@ class ImageCache {
return try? cache.getData(url.absoluteString)
}
func get(_ url: URL) -> ImageDataCache.Entry? {
return try? cache.get(url.absoluteString)
func get(_ url: URL, loadOriginal: Bool = false) -> ImageDataCache.Entry? {
return try? cache.get(url.absoluteString, loadOriginal: loadOriginal)
}
func cancelWithoutCallback(_ url: URL) {

17
Tusker/Caching/ImageDataCache.swift
View File

@ -41,8 +41,9 @@ class ImageDataCache {
}
}
func get(_ key: String) throws -> Entry? {
if let memoryEntry = try? memory.object(forKey: key) {
func get(_ key: String, loadOriginal: Bool) throws -> Entry? {
if storeOriginalDataInMemory || !loadOriginal,
let memoryEntry = try? memory.object(forKey: key) {
return memoryEntry
} else if let disk = self.disk,
let data = try? disk.object(forKey: key),
@ -54,15 +55,15 @@ class ImageDataCache {
}
func getImage(_ key: String) throws -> UIImage? {
return try get(key)?.image
return try get(key, loadOriginal: false)?.image
}
func getData(_ key: String) throws -> Data? {
return try get(key)?.data
return try get(key, loadOriginal: false)?.data
}
func set(_ key: String, data: Data) throws {
guard let image = scaleImageIfDesired(data: data) else { return }
func set(_ key: String, data: Data, image: UIImage?) throws {
guard let image = scaleImageIfDesired(data: data) ?? image else { return }
let entry = Entry(data: storeOriginalDataInMemory ? data : nil, image: image)
memory.setObject(entry, forKey: key)
@ -80,7 +81,7 @@ class ImageDataCache {
private func scaleImageIfDesired(data: Data) -> UIImage? {
guard let desiredPixelSize = desiredPixelSize,
let source = CGImageSourceCreateWithData(data as CFData, [kCGImageSourceShouldCache: false] as CFDictionary) else {
return UIImage(data: data)
return nil
}
let maxDimension = max(desiredPixelSize.width, desiredPixelSize.height)
@ -94,7 +95,7 @@ class ImageDataCache {
if let downsampled = CGImageSourceCreateThumbnailAtIndex(source, 0, downsampleOptions) {
return UIImage(cgImage: downsampled)
} else {
return UIImage(data: data)
return nil
}
}

5
Tusker/Screens/Large Image/LoadingLargeImageViewController.swift
View File

@ -85,14 +85,15 @@ class LoadingLargeImageViewController: UIViewController, LargeImageAnimatableVie
overrideUserInterfaceStyle = .dark
view.backgroundColor = .black
if let entry = cache.get(url) {
// always load full resolution from disk for large image, in case the cache is scaled
if let entry = cache.get(url, loadOriginal: true) {
createLargeImage(data: entry.data, image: entry.image, url: url)
} else {
createPreview()
loadingVC = LoadingViewController()
embedChild(loadingVC!)
imageRequest = cache.get(url) { [weak self] (data, image) in
imageRequest = cache.get(url, loadOriginal: true) { [weak self] (data, image) in
guard let self = self else { return }
self.imageRequest = nil
DispatchQueue.main.async {

31
Tusker/Views/Profile Header/ProfileHeaderView.swift
View File

@ -191,16 +191,15 @@ class ProfileHeaderView: UIView {
let accountID = account.id
let avatarURL = account.avatar
avatarRequest = ImageCache.avatars.get(avatarURL) { [weak self] (_, image) in
guard let self = self, let image = image, self.accountID == accountID else { return }
self.avatarRequest = nil
let transformedImage: UIImage?
if self.isGrayscale {
transformedImage = ImageGrayscalifier.convert(url: avatarURL, cgImage: image.cgImage!)
} else {
transformedImage = image
// always load original for avatars, because ImageCache.avatars stores them scaled-down in memory
avatarRequest = ImageCache.avatars.get(avatarURL, loadOriginal: true) { [weak self] (_, image) in
guard let self = self,
let image = image,
self.accountID == accountID,
let transformedImage = ImageGrayscalifier.convertIfNecessary(url: avatarURL, image: image) else {
return
}
self.avatarRequest = nil
DispatchQueue.main.async {
self.avatarImageView.image = transformedImage
@ -208,15 +207,13 @@ class ProfileHeaderView: UIView {
}
if let header = account.header {
headerRequest = ImageCache.headers.get(header) { [weak self] (_, image) in
guard let self = self, let image = image, self.accountID == accountID else { return }
self.headerRequest = nil
let transformedImage: UIImage?
if self.isGrayscale {
transformedImage = ImageGrayscalifier.convert(url: header, cgImage: image.cgImage!)
} else {
transformedImage = image
guard let self = self,
let image = image,
self.accountID == accountID,
let transformedImage = ImageGrayscalifier.convertIfNecessary(url: header, image: image) else {
return
}
self.headerRequest = nil
DispatchQueue.main.async {
self.headerImageView.image = transformedImage