mirror of
https://github.com/Swiftgram/Telegram-iOS.git
synced 2025-06-16 05:55:20 +00:00
727 lines
28 KiB
Swift
727 lines
28 KiB
Swift
import Foundation
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import UIKit
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import SwiftSignalKit
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import Display
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import AnimationCache
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import Accelerate
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public protocol MultiAnimationRenderer: AnyObject {
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func add(target: MultiAnimationRenderTarget, cache: AnimationCache, itemId: String, size: CGSize, fetch: @escaping (AnimationCacheFetchOptions) -> Disposable) -> Disposable
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func loadFirstFrameSynchronously(target: MultiAnimationRenderTarget, cache: AnimationCache, itemId: String, size: CGSize) -> Bool
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func loadFirstFrame(target: MultiAnimationRenderTarget, cache: AnimationCache, itemId: String, size: CGSize, fetch: ((AnimationCacheFetchOptions) -> Disposable)?, completion: @escaping (Bool, Bool) -> Void) -> Disposable
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}
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private var nextRenderTargetId: Int64 = 1
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open class MultiAnimationRenderTarget: SimpleLayer {
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public let id: Int64
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let deinitCallbacks = Bag<() -> Void>()
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let updateStateCallbacks = Bag<() -> Void>()
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public final var shouldBeAnimating: Bool = false {
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didSet {
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if self.shouldBeAnimating != oldValue {
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for f in self.updateStateCallbacks.copyItems() {
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f()
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}
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}
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}
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}
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public var blurredRepresentationBackgroundColor: UIColor?
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public var blurredRepresentationTarget: CALayer? {
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didSet {
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if self.blurredRepresentationTarget !== oldValue {
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for f in self.updateStateCallbacks.copyItems() {
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f()
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}
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}
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}
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}
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public override init() {
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assert(Thread.isMainThread)
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self.id = nextRenderTargetId
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nextRenderTargetId += 1
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super.init()
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}
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public override init(layer: Any) {
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guard let layer = layer as? MultiAnimationRenderTarget else {
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preconditionFailure()
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}
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self.id = layer.id
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super.init(layer: layer)
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}
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required public init?(coder: NSCoder) {
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fatalError("init(coder:) has not been implemented")
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}
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deinit {
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for f in self.deinitCallbacks.copyItems() {
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f()
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}
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}
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open func updateDisplayPlaceholder(displayPlaceholder: Bool) {
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}
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open func transitionToContents(_ contents: AnyObject) {
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}
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}
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private final class LoadFrameGroupTask {
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let task: () -> () -> Void
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let queueAffinity: Int
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init(task: @escaping () -> () -> Void, queueAffinity: Int) {
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self.task = task
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self.queueAffinity = queueAffinity
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}
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}
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private final class ItemAnimationContext {
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fileprivate final class Frame {
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let frame: AnimationCacheItemFrame
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let duration: Double
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let image: UIImage
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let badgeImage: UIImage?
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let size: CGSize
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var remainingDuration: Double
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private var blurredRepresentationValue: UIImage?
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init?(frame: AnimationCacheItemFrame) {
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self.frame = frame
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self.duration = frame.duration
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self.remainingDuration = frame.duration
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switch frame.format {
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case let .rgba(data, width, height, bytesPerRow):
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let context = DrawingContext(size: CGSize(width: CGFloat(width), height: CGFloat(height)), scale: 1.0, opaque: false, bytesPerRow: bytesPerRow)
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data.withUnsafeBytes { bytes -> Void in
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memcpy(context.bytes, bytes.baseAddress!, height * bytesPerRow)
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}
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guard let image = context.generateImage() else {
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return nil
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}
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self.image = image
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self.size = CGSize(width: CGFloat(width), height: CGFloat(height))
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self.badgeImage = nil
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default:
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return nil
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}
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}
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func blurredRepresentation(color: UIColor?) -> UIImage? {
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if let blurredRepresentationValue = self.blurredRepresentationValue {
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return blurredRepresentationValue
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}
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switch frame.format {
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case let .rgba(data, width, height, bytesPerRow):
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let blurredWidth = 12
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let blurredHeight = 12
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let context = DrawingContext(size: CGSize(width: CGFloat(blurredWidth), height: CGFloat(blurredHeight)), scale: 1.0, opaque: true, bytesPerRow: bytesPerRow)
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let size = CGSize(width: CGFloat(blurredWidth), height: CGFloat(blurredHeight))
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data.withUnsafeBytes { bytes -> Void in
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if let dataProvider = CGDataProvider(dataInfo: nil, data: bytes.baseAddress!, size: bytes.count, releaseData: { _, _, _ in }) {
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let image = CGImage(
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width: width,
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height: height,
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bitsPerComponent: 8,
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bitsPerPixel: 32,
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bytesPerRow: bytesPerRow,
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space: DeviceGraphicsContextSettings.shared.colorSpace,
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bitmapInfo: DeviceGraphicsContextSettings.shared.transparentBitmapInfo,
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provider: dataProvider,
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decode: nil,
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shouldInterpolate: true,
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intent: .defaultIntent
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)
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if let image = image {
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context.withFlippedContext { c in
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c.setFillColor((color ?? .white).cgColor)
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c.fill(CGRect(origin: CGPoint(), size: size))
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c.draw(image, in: CGRect(origin: CGPoint(x: -size.width / 2.0, y: -size.height / 2.0), size: CGSize(width: size.width * 1.8, height: size.height * 1.8)))
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}
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}
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}
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var destinationBuffer = vImage_Buffer()
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destinationBuffer.width = UInt(blurredWidth)
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destinationBuffer.height = UInt(blurredHeight)
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destinationBuffer.data = context.bytes
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destinationBuffer.rowBytes = context.bytesPerRow
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vImageBoxConvolve_ARGB8888(&destinationBuffer,
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&destinationBuffer,
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nil,
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0, 0,
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UInt32(15),
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UInt32(15),
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nil,
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vImage_Flags(kvImageTruncateKernel))
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let divisor: Int32 = 0x1000
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let rwgt: CGFloat = 0.3086
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let gwgt: CGFloat = 0.6094
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let bwgt: CGFloat = 0.0820
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let adjustSaturation: CGFloat = 1.7
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let a = (1.0 - adjustSaturation) * rwgt + adjustSaturation
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let b = (1.0 - adjustSaturation) * rwgt
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let c = (1.0 - adjustSaturation) * rwgt
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let d = (1.0 - adjustSaturation) * gwgt
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let e = (1.0 - adjustSaturation) * gwgt + adjustSaturation
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let f = (1.0 - adjustSaturation) * gwgt
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let g = (1.0 - adjustSaturation) * bwgt
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let h = (1.0 - adjustSaturation) * bwgt
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let i = (1.0 - adjustSaturation) * bwgt + adjustSaturation
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let satMatrix: [CGFloat] = [
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a, b, c, 0,
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d, e, f, 0,
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g, h, i, 0,
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0, 0, 0, 1
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]
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var matrix: [Int16] = satMatrix.map { value in
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return Int16(value * CGFloat(divisor))
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}
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vImageMatrixMultiply_ARGB8888(&destinationBuffer, &destinationBuffer, &matrix, divisor, nil, nil, vImage_Flags(kvImageDoNotTile))
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context.withFlippedContext { c in
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c.setFillColor((color ?? .white).withMultipliedAlpha(0.6).cgColor)
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c.fill(CGRect(origin: CGPoint(), size: size))
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}
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}
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self.blurredRepresentationValue = context.generateImage()
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return self.blurredRepresentationValue
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default:
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return nil
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}
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}
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}
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static let queue0 = Queue(name: "ItemAnimationContext-0", qos: .default)
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static let queue1 = Queue(name: "ItemAnimationContext-1", qos: .default)
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private let cache: AnimationCache
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let queueAffinity: Int
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private let stateUpdated: () -> Void
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private var disposable: Disposable?
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private var displayLink: ConstantDisplayLinkAnimator?
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private var item: Atomic<AnimationCacheItem>?
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private var currentFrame: Frame?
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private var isLoadingFrame: Bool = false
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private(set) var isPlaying: Bool = false {
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didSet {
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if self.isPlaying != oldValue {
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self.stateUpdated()
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}
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}
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}
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let targets = Bag<Weak<MultiAnimationRenderTarget>>()
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init(cache: AnimationCache, queueAffinity: Int, itemId: String, size: CGSize, fetch: @escaping (AnimationCacheFetchOptions) -> Disposable, stateUpdated: @escaping () -> Void) {
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self.cache = cache
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self.queueAffinity = queueAffinity
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self.stateUpdated = stateUpdated
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self.disposable = cache.get(sourceId: itemId, size: size, fetch: fetch).start(next: { [weak self] result in
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Queue.mainQueue().async {
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guard let strongSelf = self else {
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return
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}
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if let item = result.item {
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strongSelf.item = Atomic(value: item)
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}
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strongSelf.updateIsPlaying()
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}
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})
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}
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deinit {
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self.disposable?.dispose()
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self.displayLink?.invalidate()
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}
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func updateAddedTarget(target: MultiAnimationRenderTarget) {
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if let currentFrame = self.currentFrame {
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if let cgImage = currentFrame.image.cgImage {
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target.transitionToContents(cgImage)
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if let blurredRepresentationTarget = target.blurredRepresentationTarget {
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blurredRepresentationTarget.contents = currentFrame.blurredRepresentation(color: target.blurredRepresentationBackgroundColor)?.cgImage
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}
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}
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}
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self.updateIsPlaying()
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}
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func updateIsPlaying() {
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var isPlaying = true
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if self.item == nil {
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isPlaying = false
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}
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var shouldBeAnimating = false
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for target in self.targets.copyItems() {
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if let target = target.value {
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if target.shouldBeAnimating {
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shouldBeAnimating = true
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break
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}
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}
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}
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if !shouldBeAnimating {
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isPlaying = false
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}
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self.isPlaying = isPlaying
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}
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func animationTick(advanceTimestamp: Double) -> LoadFrameGroupTask? {
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return self.update(advanceTimestamp: advanceTimestamp)
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}
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private func update(advanceTimestamp: Double) -> LoadFrameGroupTask? {
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guard let item = self.item else {
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return nil
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}
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var frameAdvance: AnimationCacheItem.Advance?
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if !self.isLoadingFrame {
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if let currentFrame = self.currentFrame, advanceTimestamp > 0.0 {
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let divisionFactor = advanceTimestamp / currentFrame.remainingDuration
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let wholeFactor = round(divisionFactor)
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if abs(wholeFactor - divisionFactor) < 0.005 {
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currentFrame.remainingDuration = 0.0
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frameAdvance = .frames(Int(wholeFactor))
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} else {
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currentFrame.remainingDuration -= advanceTimestamp
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if currentFrame.remainingDuration <= 0.0 {
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frameAdvance = .duration(currentFrame.duration + max(0.0, -currentFrame.remainingDuration))
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}
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}
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} else if self.currentFrame == nil {
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frameAdvance = .frames(1)
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}
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}
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if let frameAdvance = frameAdvance, !self.isLoadingFrame {
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self.isLoadingFrame = true
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return LoadFrameGroupTask(task: { [weak self] in
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let currentFrame: Frame?
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do {
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if let frame = try item.tryWith({ $0.advance(advance: frameAdvance, requestedFormat: .rgba) }) {
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currentFrame = Frame(frame: frame)
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} else {
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currentFrame = nil
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}
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} catch {
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assertionFailure()
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currentFrame = nil
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}
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return {
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guard let strongSelf = self else {
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return
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}
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strongSelf.isLoadingFrame = false
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if let currentFrame = currentFrame {
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strongSelf.currentFrame = currentFrame
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for target in strongSelf.targets.copyItems() {
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if let target = target.value {
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target.transitionToContents(currentFrame.image.cgImage!)
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if let blurredRepresentationTarget = target.blurredRepresentationTarget {
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blurredRepresentationTarget.contents = currentFrame.blurredRepresentation(color: target.blurredRepresentationBackgroundColor)?.cgImage
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}
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}
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}
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}
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}
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}, queueAffinity: self.queueAffinity)
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}
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if let _ = self.currentFrame {
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for target in self.targets.copyItems() {
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if let target = target.value {
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target.updateDisplayPlaceholder(displayPlaceholder: false)
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}
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}
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}
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return nil
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}
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}
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public final class MultiAnimationRendererImpl: MultiAnimationRenderer {
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private final class GroupContext {
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private let firstFrameQueue: Queue
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private let stateUpdated: () -> Void
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private struct ItemKey: Hashable {
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var id: String
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var width: Int
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var height: Int
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}
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private var itemContexts: [ItemKey: ItemAnimationContext] = [:]
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private var nextQueueAffinity: Int = 0
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private(set) var isPlaying: Bool = false {
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didSet {
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if self.isPlaying != oldValue {
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self.stateUpdated()
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}
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}
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}
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init(firstFrameQueue: Queue, stateUpdated: @escaping () -> Void) {
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self.firstFrameQueue = firstFrameQueue
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self.stateUpdated = stateUpdated
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}
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func add(target: MultiAnimationRenderTarget, cache: AnimationCache, itemId: String, size: CGSize, fetch: @escaping (AnimationCacheFetchOptions) -> Disposable) -> Disposable {
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let itemKey = ItemKey(id: itemId, width: Int(size.width), height: Int(size.height))
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let itemContext: ItemAnimationContext
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if let current = self.itemContexts[itemKey] {
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itemContext = current
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} else {
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let queueAffinity = self.nextQueueAffinity
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self.nextQueueAffinity += 1
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itemContext = ItemAnimationContext(cache: cache, queueAffinity: queueAffinity, itemId: itemId, size: size, fetch: fetch, stateUpdated: { [weak self] in
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guard let strongSelf = self else {
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return
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}
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strongSelf.updateIsPlaying()
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})
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self.itemContexts[itemKey] = itemContext
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}
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let index = itemContext.targets.add(Weak(target))
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itemContext.updateAddedTarget(target: target)
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let deinitIndex = target.deinitCallbacks.add { [weak self, weak itemContext] in
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Queue.mainQueue().async {
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guard let strongSelf = self, let itemContext = itemContext, strongSelf.itemContexts[itemKey] === itemContext else {
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return
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}
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itemContext.targets.remove(index)
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if itemContext.targets.isEmpty {
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strongSelf.itemContexts.removeValue(forKey: itemKey)
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}
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}
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}
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let updateStateIndex = target.updateStateCallbacks.add { [weak itemContext] in
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guard let itemContext = itemContext else {
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return
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}
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itemContext.updateIsPlaying()
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}
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return ActionDisposable { [weak self, weak itemContext, weak target] in
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guard let strongSelf = self, let itemContext = itemContext, strongSelf.itemContexts[itemKey] === itemContext else {
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return
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}
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if let target = target {
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target.deinitCallbacks.remove(deinitIndex)
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target.updateStateCallbacks.remove(updateStateIndex)
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}
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itemContext.targets.remove(index)
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if itemContext.targets.isEmpty {
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strongSelf.itemContexts.removeValue(forKey: itemKey)
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}
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}
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}
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func loadFirstFrameSynchronously(target: MultiAnimationRenderTarget, cache: AnimationCache, itemId: String, size: CGSize) -> Bool {
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if let item = cache.getFirstFrameSynchronously(sourceId: itemId, size: size) {
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guard let frame = item.advance(advance: .frames(1), requestedFormat: .rgba) else {
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return false
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}
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guard let loadedFrame = ItemAnimationContext.Frame(frame: frame) else {
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return false
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}
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target.contents = loadedFrame.image.cgImage
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if let blurredRepresentationTarget = target.blurredRepresentationTarget {
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blurredRepresentationTarget.contents = loadedFrame.blurredRepresentation(color: target.blurredRepresentationBackgroundColor)?.cgImage
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}
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return true
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} else {
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return false
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}
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}
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func loadFirstFrame(target: MultiAnimationRenderTarget, cache: AnimationCache, itemId: String, size: CGSize, fetch: ((AnimationCacheFetchOptions) -> Disposable)?, completion: @escaping (Bool, Bool) -> Void) -> Disposable {
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var hadIntermediateUpdate = false
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return cache.getFirstFrame(queue: self.firstFrameQueue, sourceId: itemId, size: size, fetch: fetch, completion: { [weak target] item in
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guard let item = item.item else {
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let isFinal = item.isFinal
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hadIntermediateUpdate = true
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Queue.mainQueue().async {
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completion(false, isFinal)
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}
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return
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}
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let loadedFrame: ItemAnimationContext.Frame?
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if let frame = item.advance(advance: .frames(1), requestedFormat: .rgba) {
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loadedFrame = ItemAnimationContext.Frame(frame: frame)
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} else {
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loadedFrame = nil
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}
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Queue.mainQueue().async {
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guard let target = target else {
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completion(false, true)
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return
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}
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if let loadedFrame = loadedFrame {
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if let cgImage = loadedFrame.image.cgImage {
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if hadIntermediateUpdate {
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target.transitionToContents(cgImage)
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} else {
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target.contents = cgImage
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}
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}
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if let blurredRepresentationTarget = target.blurredRepresentationTarget {
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blurredRepresentationTarget.contents = loadedFrame.blurredRepresentation(color: target.blurredRepresentationBackgroundColor)?.cgImage
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}
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completion(true, true)
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} else {
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completion(false, true)
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}
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}
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})
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}
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private func updateIsPlaying() {
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var isPlaying = false
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for (_, itemContext) in self.itemContexts {
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if itemContext.isPlaying {
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isPlaying = true
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break
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}
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}
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self.isPlaying = isPlaying
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}
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func animationTick(advanceTimestamp: Double) -> [LoadFrameGroupTask] {
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var tasks: [LoadFrameGroupTask] = []
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for (_, itemContext) in self.itemContexts {
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if itemContext.isPlaying {
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if let task = itemContext.animationTick(advanceTimestamp: advanceTimestamp) {
|
|
tasks.append(task)
|
|
}
|
|
}
|
|
}
|
|
|
|
return tasks
|
|
}
|
|
}
|
|
|
|
public static let firstFrameQueue = Queue(name: "MultiAnimationRenderer-FirstFrame", qos: .userInteractive)
|
|
|
|
private var groupContext: GroupContext?
|
|
private var frameSkip: Int
|
|
private var displayTimer: Foundation.Timer?
|
|
|
|
private(set) var isPlaying: Bool = false {
|
|
didSet {
|
|
if self.isPlaying != oldValue {
|
|
if self.isPlaying {
|
|
if self.displayTimer == nil {
|
|
final class TimerTarget: NSObject {
|
|
private let f: () -> Void
|
|
|
|
init(_ f: @escaping () -> Void) {
|
|
self.f = f
|
|
}
|
|
|
|
@objc func timerEvent() {
|
|
self.f()
|
|
}
|
|
}
|
|
let frameInterval = Double(self.frameSkip) / 60.0
|
|
let displayTimer = Foundation.Timer(timeInterval: frameInterval, target: TimerTarget { [weak self] in
|
|
guard let strongSelf = self else {
|
|
return
|
|
}
|
|
strongSelf.animationTick(frameInterval: frameInterval)
|
|
}, selector: #selector(TimerTarget.timerEvent), userInfo: nil, repeats: true)
|
|
self.displayTimer = displayTimer
|
|
RunLoop.main.add(displayTimer, forMode: .common)
|
|
}
|
|
} else {
|
|
if let displayTimer = self.displayTimer {
|
|
self.displayTimer = nil
|
|
displayTimer.invalidate()
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
public init() {
|
|
if !ProcessInfo.processInfo.isLowPowerModeEnabled && ProcessInfo.processInfo.processorCount > 2 {
|
|
self.frameSkip = 1
|
|
} else {
|
|
self.frameSkip = 2
|
|
}
|
|
}
|
|
|
|
public func add(target: MultiAnimationRenderTarget, cache: AnimationCache, itemId: String, size: CGSize, fetch: @escaping (AnimationCacheFetchOptions) -> Disposable) -> Disposable {
|
|
let groupContext: GroupContext
|
|
if let current = self.groupContext {
|
|
groupContext = current
|
|
} else {
|
|
groupContext = GroupContext(firstFrameQueue: MultiAnimationRendererImpl.firstFrameQueue, stateUpdated: { [weak self] in
|
|
guard let strongSelf = self else {
|
|
return
|
|
}
|
|
strongSelf.updateIsPlaying()
|
|
})
|
|
self.groupContext = groupContext
|
|
}
|
|
|
|
let disposable = groupContext.add(target: target, cache: cache, itemId: itemId, size: size, fetch: fetch)
|
|
|
|
return ActionDisposable {
|
|
disposable.dispose()
|
|
}
|
|
}
|
|
|
|
public func loadFirstFrameSynchronously(target: MultiAnimationRenderTarget, cache: AnimationCache, itemId: String, size: CGSize) -> Bool {
|
|
let groupContext: GroupContext
|
|
if let current = self.groupContext {
|
|
groupContext = current
|
|
} else {
|
|
groupContext = GroupContext(firstFrameQueue: MultiAnimationRendererImpl.firstFrameQueue, stateUpdated: { [weak self] in
|
|
guard let strongSelf = self else {
|
|
return
|
|
}
|
|
strongSelf.updateIsPlaying()
|
|
})
|
|
self.groupContext = groupContext
|
|
}
|
|
|
|
return groupContext.loadFirstFrameSynchronously(target: target, cache: cache, itemId: itemId, size: size)
|
|
}
|
|
|
|
public func loadFirstFrame(target: MultiAnimationRenderTarget, cache: AnimationCache, itemId: String, size: CGSize, fetch: ((AnimationCacheFetchOptions) -> Disposable)?, completion: @escaping (Bool, Bool) -> Void) -> Disposable {
|
|
let groupContext: GroupContext
|
|
if let current = self.groupContext {
|
|
groupContext = current
|
|
} else {
|
|
groupContext = GroupContext(firstFrameQueue: MultiAnimationRendererImpl.firstFrameQueue, stateUpdated: { [weak self] in
|
|
guard let strongSelf = self else {
|
|
return
|
|
}
|
|
strongSelf.updateIsPlaying()
|
|
})
|
|
self.groupContext = groupContext
|
|
}
|
|
|
|
return groupContext.loadFirstFrame(target: target, cache: cache, itemId: itemId, size: size, fetch: fetch, completion: completion)
|
|
}
|
|
|
|
private func updateIsPlaying() {
|
|
var isPlaying = false
|
|
if let groupContext = self.groupContext {
|
|
if groupContext.isPlaying {
|
|
isPlaying = true
|
|
}
|
|
}
|
|
|
|
self.isPlaying = isPlaying
|
|
}
|
|
|
|
private func animationTick(frameInterval: Double) {
|
|
let secondsPerFrame = frameInterval
|
|
|
|
var tasks: [LoadFrameGroupTask] = []
|
|
if let groupContext = self.groupContext {
|
|
if groupContext.isPlaying {
|
|
tasks.append(contentsOf: groupContext.animationTick(advanceTimestamp: secondsPerFrame))
|
|
}
|
|
}
|
|
|
|
if !tasks.isEmpty {
|
|
let tasks0 = tasks.filter { $0.queueAffinity % 2 == 0 }
|
|
let tasks1 = tasks.filter { $0.queueAffinity % 2 == 1 }
|
|
let allTasks = [tasks0, tasks1]
|
|
|
|
let taskCompletions = Atomic<[Int: [() -> Void]]>(value: [:])
|
|
let queues: [Queue] = [ItemAnimationContext.queue0, ItemAnimationContext.queue1]
|
|
|
|
for i in 0 ..< 2 {
|
|
let partTasks = allTasks[i]
|
|
let id = i
|
|
queues[i].async {
|
|
var completions: [() -> Void] = []
|
|
for task in partTasks {
|
|
let complete = task.task()
|
|
completions.append(complete)
|
|
}
|
|
|
|
var complete = false
|
|
let _ = taskCompletions.modify { current in
|
|
var current = current
|
|
current[id] = completions
|
|
if current.count == 2 {
|
|
complete = true
|
|
}
|
|
return current
|
|
}
|
|
|
|
if complete {
|
|
Queue.mainQueue().async {
|
|
let allCompletions = taskCompletions.with { $0 }
|
|
for (_, fs) in allCompletions {
|
|
for f in fs {
|
|
f()
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|