mirror of
https://github.com/Swiftgram/Telegram-iOS.git
synced 2025-06-16 05:55:20 +00:00
599 lines
22 KiB
Swift
599 lines
22 KiB
Swift
import Foundation
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import SwiftSignalKit
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import Postbox
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import TelegramCore
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import Compression
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import Display
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import AsyncDisplayKit
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import RLottieBinding
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import GZip
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import Tuples
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import MediaResources
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import StickerResources
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private let sharedQueue = Queue()
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private class AnimatedStickerNodeDisplayEvents: ASDisplayNode {
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private var value: Bool = false
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var updated: ((Bool) -> Void)?
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override init() {
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super.init()
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self.isLayerBacked = true
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}
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override func didEnterHierarchy() {
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super.didEnterHierarchy()
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if !self.value {
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self.value = true
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self.updated?(true)
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}
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}
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override func didExitHierarchy() {
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super.didExitHierarchy()
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if self.value {
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self.value = false
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self.updated?(false)
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}
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}
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}
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public enum AnimatedStickerMode {
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case cached
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case direct
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}
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public enum AnimatedStickerPlaybackMode {
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case once
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case loop
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}
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private final class AnimatedStickerFrame {
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let data: Data
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let type: AnimationRendererFrameType
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let width: Int
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let height: Int
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let bytesPerRow: Int
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let index: Int
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let isLastFrame: Bool
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init(data: Data, type: AnimationRendererFrameType, width: Int, height: Int, bytesPerRow: Int, index: Int, isLastFrame: Bool) {
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self.data = data
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self.type = type
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self.width = width
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self.height = height
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self.bytesPerRow = bytesPerRow
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self.index = index
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self.isLastFrame = isLastFrame
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}
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}
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private protocol AnimatedStickerFrameSource: class {
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var frameRate: Int { get }
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var frameCount: Int { get }
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func takeFrame() -> AnimatedStickerFrame
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}
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@available(iOS 9.0, *)
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private final class AnimatedStickerCachedFrameSource: AnimatedStickerFrameSource {
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private let queue: Queue
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private let data: Data
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private var scratchBuffer: Data
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let width: Int
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let bytesPerRow: Int
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let height: Int
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let frameRate: Int
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let frameCount: Int
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private var frameIndex: Int
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private let initialOffset: Int
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private var offset: Int
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var decodeBuffer: Data
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var frameBuffer: Data
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init?(queue: Queue, data: Data) {
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self.queue = queue
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self.data = data
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self.scratchBuffer = Data(count: compression_decode_scratch_buffer_size(COMPRESSION_LZFSE))
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var offset = 0
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var width = 0
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var height = 0
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var bytesPerRow = 0
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var frameRate = 0
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var frameCount = 0
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if !self.data.withUnsafeBytes({ (bytes: UnsafePointer<UInt8>) -> Bool in
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var frameRateValue: Int32 = 0
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var frameCountValue: Int32 = 0
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var widthValue: Int32 = 0
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var heightValue: Int32 = 0
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var bytesPerRowValue: Int32 = 0
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memcpy(&frameRateValue, bytes.advanced(by: offset), 4)
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offset += 4
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memcpy(&frameCountValue, bytes.advanced(by: offset), 4)
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offset += 4
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memcpy(&widthValue, bytes.advanced(by: offset), 4)
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offset += 4
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memcpy(&heightValue, bytes.advanced(by: offset), 4)
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offset += 4
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memcpy(&bytesPerRowValue, bytes.advanced(by: offset), 4)
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offset += 4
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frameRate = Int(frameRateValue)
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frameCount = Int(frameCountValue)
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width = Int(widthValue)
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height = Int(heightValue)
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bytesPerRow = Int(bytesPerRowValue)
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return true
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}) {
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return nil
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}
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self.bytesPerRow = bytesPerRow
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self.width = width
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self.height = height
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self.frameRate = frameRate
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self.frameCount = frameCount
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self.frameIndex = 0
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self.initialOffset = offset
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self.offset = offset
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self.decodeBuffer = Data(count: self.bytesPerRow * height)
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self.frameBuffer = Data(count: self.bytesPerRow * height)
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let frameBufferLength = self.frameBuffer.count
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self.frameBuffer.withUnsafeMutableBytes { (bytes: UnsafeMutablePointer<UInt8>) -> Void in
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memset(bytes, 0, frameBufferLength)
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}
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}
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deinit {
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assert(self.queue.isCurrent())
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}
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func takeFrame() -> AnimatedStickerFrame {
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var frameData: Data?
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var isLastFrame = false
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let dataLength = self.data.count
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let decodeBufferLength = self.decodeBuffer.count
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let frameBufferLength = self.frameBuffer.count
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let frameIndex = self.frameIndex
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self.data.withUnsafeBytes { (bytes: UnsafePointer<UInt8>) -> Void in
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var frameLength: Int32 = 0
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memcpy(&frameLength, bytes.advanced(by: self.offset), 4)
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self.offset += 4
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self.scratchBuffer.withUnsafeMutableBytes { (scratchBytes: UnsafeMutablePointer<UInt8>) -> Void in
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self.decodeBuffer.withUnsafeMutableBytes { (decodeBytes: UnsafeMutablePointer<UInt8>) -> Void in
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self.frameBuffer.withUnsafeMutableBytes { (frameBytes: UnsafeMutablePointer<UInt8>) -> Void in
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compression_decode_buffer(decodeBytes, decodeBufferLength, bytes.advanced(by: self.offset), Int(frameLength), UnsafeMutableRawPointer(scratchBytes), COMPRESSION_LZFSE)
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var lhs = UnsafeMutableRawPointer(frameBytes).assumingMemoryBound(to: UInt64.self)
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var rhs = UnsafeRawPointer(decodeBytes).assumingMemoryBound(to: UInt64.self)
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for _ in 0 ..< decodeBufferLength / 8 {
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lhs.pointee = lhs.pointee ^ rhs.pointee
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lhs = lhs.advanced(by: 1)
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rhs = rhs.advanced(by: 1)
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}
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var lhsRest = UnsafeMutableRawPointer(frameBytes).assumingMemoryBound(to: UInt8.self).advanced(by: (decodeBufferLength / 8) * 8)
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var rhsRest = UnsafeMutableRawPointer(decodeBytes).assumingMemoryBound(to: UInt8.self).advanced(by: (decodeBufferLength / 8) * 8)
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for _ in (decodeBufferLength / 8) * 8 ..< decodeBufferLength {
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lhsRest.pointee = rhsRest.pointee ^ lhsRest.pointee
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lhsRest = lhsRest.advanced(by: 1)
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rhsRest = rhsRest.advanced(by: 1)
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}
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frameData = Data(bytes: frameBytes, count: decodeBufferLength)
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}
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}
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}
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self.frameIndex += 1
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self.offset += Int(frameLength)
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if self.offset == dataLength {
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isLastFrame = true
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self.frameIndex = 0
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self.offset = self.initialOffset
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self.frameBuffer.withUnsafeMutableBytes { (bytes: UnsafeMutablePointer<UInt8>) -> Void in
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memset(bytes, 0, frameBufferLength)
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}
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}
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}
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return AnimatedStickerFrame(data: frameData!, type: .yuva, width: self.width, height: self.height, bytesPerRow: self.bytesPerRow, index: frameIndex, isLastFrame: isLastFrame)
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}
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}
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private final class AnimatedStickerDirectFrameSource: AnimatedStickerFrameSource {
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private let queue: Queue
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private let data: Data
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private let width: Int
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private let height: Int
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private let bytesPerRow: Int
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let frameCount: Int
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let frameRate: Int
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private var currentFrame: Int
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private let animation: LottieInstance
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init?(queue: Queue, data: Data, width: Int, height: Int) {
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self.queue = queue
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self.data = data
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self.width = width
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self.height = height
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self.bytesPerRow = (4 * Int(width) + 15) & (~15)
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self.currentFrame = 0
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guard let rawData = TGGUnzipData(data, 8 * 1024 * 1024) else {
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return nil
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}
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guard let animation = LottieInstance(data: rawData, cacheKey: "") else {
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return nil
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}
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self.animation = animation
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self.frameCount = Int(animation.frameCount)
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self.frameRate = Int(animation.frameRate)
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}
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deinit {
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assert(self.queue.isCurrent())
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}
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func takeFrame() -> AnimatedStickerFrame {
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let frameIndex = self.currentFrame % self.frameCount
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self.currentFrame += 1
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var frameData = Data(count: self.bytesPerRow * self.height)
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frameData.withUnsafeMutableBytes { (bytes: UnsafeMutablePointer<UInt8>) -> Void in
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memset(bytes, 0, self.bytesPerRow * self.height)
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self.animation.renderFrame(with: Int32(frameIndex), into: bytes, width: Int32(self.width), height: Int32(self.height), bytesPerRow: Int32(self.bytesPerRow))
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}
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return AnimatedStickerFrame(data: frameData, type: .argb, width: self.width, height: self.height, bytesPerRow: self.bytesPerRow, index: frameIndex, isLastFrame: frameIndex == self.frameCount - 1)
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}
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}
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private final class AnimatedStickerFrameQueue {
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private let queue: Queue
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private let length: Int
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private let source: AnimatedStickerFrameSource
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private var frames: [AnimatedStickerFrame] = []
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init(queue: Queue, length: Int, source: AnimatedStickerFrameSource) {
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self.queue = queue
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self.length = length
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self.source = source
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}
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deinit {
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assert(self.queue.isCurrent())
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}
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func take() -> AnimatedStickerFrame? {
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if self.frames.isEmpty {
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self.frames.append(self.source.takeFrame())
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}
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let frame = self.frames.removeFirst()
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return frame
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}
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func generateFramesIfNeeded() {
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if self.frames.isEmpty {
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self.frames.append(self.source.takeFrame())
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}
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}
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}
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public struct AnimatedStickerStatus: Equatable {
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public let playing: Bool
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public let duration: Double
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public let timestamp: Double
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public init(playing: Bool, duration: Double, timestamp: Double) {
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self.playing = playing
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self.duration = duration
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self.timestamp = timestamp
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}
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}
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public enum AnimatedStickerNodeResource {
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case resource(Account, MediaResource)
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case localFile(String)
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}
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public final class AnimatedStickerNode: ASDisplayNode {
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private let queue: Queue
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private var fileReference: FileMediaReference?
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private let disposable = MetaDisposable()
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private let fetchDisposable = MetaDisposable()
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private let eventsNode: AnimatedStickerNodeDisplayEvents
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public var automaticallyLoadFirstFrame: Bool = false
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public var playToCompletionOnStop: Bool = false
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public var started: () -> Void = {}
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private var reportedStarted = false
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private let timer = Atomic<SwiftSignalKit.Timer?>(value: nil)
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private var directData: Tuple4<Data, String, Int, Int>?
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private var cachedData: Data?
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private var renderer: (AnimationRenderer & ASDisplayNode)?
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private var isPlaying: Bool = false
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private var canDisplayFirstFrame: Bool = false
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private var playbackMode: AnimatedStickerPlaybackMode = .loop
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private let playbackStatus = Promise<AnimatedStickerStatus>()
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public var status: Signal<AnimatedStickerStatus, NoError> {
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return self.playbackStatus.get()
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}
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public var visibility = false {
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didSet {
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if self.visibility != oldValue {
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self.updateIsPlaying()
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}
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}
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}
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private var isDisplaying = false {
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didSet {
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if self.isDisplaying != oldValue {
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self.updateIsPlaying()
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}
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}
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}
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override public init() {
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self.queue = sharedQueue
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self.eventsNode = AnimatedStickerNodeDisplayEvents()
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super.init()
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self.eventsNode.updated = { [weak self] value in
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guard let strongSelf = self else {
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return
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}
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strongSelf.isDisplaying = value
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}
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self.addSubnode(self.eventsNode)
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}
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deinit {
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self.disposable.dispose()
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self.fetchDisposable.dispose()
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self.timer.swap(nil)?.invalidate()
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}
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override public func didLoad() {
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super.didLoad()
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#if targetEnvironment(simulator)
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self.renderer = SoftwareAnimationRenderer()
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#else
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self.renderer = SoftwareAnimationRenderer()
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//self.renderer = MetalAnimationRenderer()
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#endif
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self.renderer?.frame = CGRect(origin: CGPoint(), size: self.bounds.size)
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self.addSubnode(self.renderer!)
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}
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public func setup(resource: AnimatedStickerNodeResource, fitzModifier: EmojiFitzModifier? = nil, width: Int, height: Int, playbackMode: AnimatedStickerPlaybackMode = .loop, mode: AnimatedStickerMode) {
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if width < 2 || height < 2 {
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return
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}
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self.playbackMode = playbackMode
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switch mode {
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case .direct:
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let f: (MediaResourceData) -> Void = { [weak self] data in
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guard let strongSelf = self, data.complete else {
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return
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}
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if let directData = try? Data(contentsOf: URL(fileURLWithPath: data.path), options: [.mappedRead]) {
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strongSelf.directData = Tuple(directData, data.path, width, height)
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}
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if strongSelf.isPlaying {
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strongSelf.play()
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} else if strongSelf.canDisplayFirstFrame {
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strongSelf.play(firstFrame: true)
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}
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}
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switch resource {
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case let .resource(account, resource):
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self.disposable.set((account.postbox.mediaBox.resourceData(resource)
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|> deliverOnMainQueue).start(next: { data in
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f(data)
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}))
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case let .localFile(path):
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f(MediaResourceData(path: path, offset: 0, size: Int(Int32.max - 1), complete: true))
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}
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case .cached:
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switch resource {
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case let .resource(account, resource):
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self.disposable.set((chatMessageAnimationData(postbox: account.postbox, resource: resource, fitzModifier: fitzModifier, width: width, height: height, synchronousLoad: false)
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|> deliverOnMainQueue).start(next: { [weak self] data in
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if let strongSelf = self, data.complete {
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strongSelf.cachedData = try? Data(contentsOf: URL(fileURLWithPath: data.path), options: [.mappedRead])
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if strongSelf.isPlaying {
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strongSelf.play()
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} else if strongSelf.canDisplayFirstFrame {
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strongSelf.play(firstFrame: true)
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}
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}
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}))
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case .localFile:
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break
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}
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}
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}
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public func reset() {
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self.disposable.set(nil)
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self.fetchDisposable.set(nil)
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}
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private func updateIsPlaying() {
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let isPlaying = self.visibility && self.isDisplaying
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if self.isPlaying != isPlaying {
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self.isPlaying = isPlaying
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if isPlaying {
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self.play()
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} else{
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self.stop()
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}
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}
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let canDisplayFirstFrame = self.automaticallyLoadFirstFrame && self.isDisplaying
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if self.canDisplayFirstFrame != canDisplayFirstFrame {
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self.canDisplayFirstFrame = canDisplayFirstFrame
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if canDisplayFirstFrame {
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self.play(firstFrame: true)
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}
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}
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}
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public func play(firstFrame: Bool = false) {
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let directData = self.directData
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let cachedData = self.cachedData
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let queue = self.queue
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let timerHolder = self.timer
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self.queue.async { [weak self] in
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var maybeFrameSource: AnimatedStickerFrameSource?
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if let directData = directData {
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maybeFrameSource = AnimatedStickerDirectFrameSource(queue: queue, data: directData._0, width: directData._2, height: directData._3)
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} else if let cachedData = cachedData {
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if #available(iOS 9.0, *) {
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maybeFrameSource = AnimatedStickerCachedFrameSource(queue: queue, data: cachedData)
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}
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}
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guard let frameSource = maybeFrameSource else {
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return
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}
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let frameQueue = QueueLocalObject<AnimatedStickerFrameQueue>(queue: queue, generate: {
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return AnimatedStickerFrameQueue(queue: queue, length: 1, source: frameSource)
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})
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timerHolder.swap(nil)?.invalidate()
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let duration: Double = frameSource.frameRate > 0 ? Double(frameSource.frameCount) / Double(frameSource.frameRate) : 0
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let frameRate = frameSource.frameRate
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let timer = SwiftSignalKit.Timer(timeout: 1.0 / Double(frameRate), repeat: !firstFrame, completion: {
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let maybeFrame = frameQueue.syncWith { frameQueue in
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return frameQueue.take()
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}
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if let maybeFrame = maybeFrame, let frame = maybeFrame {
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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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strongSelf.renderer?.render(queue: strongSelf.queue, width: frame.width, height: frame.height, bytesPerRow: frame.bytesPerRow, data: frame.data, type: frame.type, completion: {
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guard let strongSelf = self else {
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return
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}
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if !strongSelf.reportedStarted {
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strongSelf.reportedStarted = true
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strongSelf.started()
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}
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})
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if case .once = strongSelf.playbackMode, frame.isLastFrame {
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strongSelf.stop()
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strongSelf.isPlaying = false
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}
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let timestamp: Double = frameRate > 0 ? Double(frame.index) / Double(frameRate) : 0
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strongSelf.playbackStatus.set(.single(AnimatedStickerStatus(playing: strongSelf.isPlaying, duration: duration, timestamp: timestamp)))
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}
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}
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frameQueue.with { frameQueue in
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frameQueue.generateFramesIfNeeded()
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}
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}, queue: queue)
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let _ = timerHolder.swap(timer)
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timer.start()
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}
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}
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public func stop() {
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self.reportedStarted = false
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self.timer.swap(nil)?.invalidate()
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if self.playToCompletionOnStop {
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self.seekToStart()
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}
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}
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public func seekToStart() {
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self.isPlaying = false
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let directData = self.directData
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let cachedData = self.cachedData
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let queue = self.queue
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let timerHolder = self.timer
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self.queue.async { [weak self] in
|
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var maybeFrameSource: AnimatedStickerFrameSource?
|
|
if let directData = directData {
|
|
maybeFrameSource = AnimatedStickerDirectFrameSource(queue: queue, data: directData._0, width: directData._2, height: directData._3)
|
|
} else if let cachedData = cachedData {
|
|
if #available(iOS 9.0, *) {
|
|
maybeFrameSource = AnimatedStickerCachedFrameSource(queue: queue, data: cachedData)
|
|
}
|
|
}
|
|
guard let frameSource = maybeFrameSource else {
|
|
return
|
|
}
|
|
let frameQueue = QueueLocalObject<AnimatedStickerFrameQueue>(queue: queue, generate: {
|
|
return AnimatedStickerFrameQueue(queue: queue, length: 1, source: frameSource)
|
|
})
|
|
timerHolder.swap(nil)?.invalidate()
|
|
|
|
let duration: Double = frameSource.frameRate > 0 ? Double(frameSource.frameCount) / Double(frameSource.frameRate) : 0
|
|
|
|
let maybeFrame = frameQueue.syncWith { frameQueue in
|
|
return frameQueue.take()
|
|
}
|
|
if let maybeFrame = maybeFrame, let frame = maybeFrame {
|
|
Queue.mainQueue().async {
|
|
guard let strongSelf = self else {
|
|
return
|
|
}
|
|
|
|
strongSelf.renderer?.render(queue: strongSelf.queue, width: frame.width, height: frame.height, bytesPerRow: frame.bytesPerRow, data: frame.data, type: frame.type, completion: {
|
|
guard let strongSelf = self else {
|
|
return
|
|
}
|
|
if !strongSelf.reportedStarted {
|
|
strongSelf.reportedStarted = true
|
|
strongSelf.started()
|
|
}
|
|
})
|
|
|
|
strongSelf.playbackStatus.set(.single(AnimatedStickerStatus(playing: false, duration: duration, timestamp: 0.0)))
|
|
}
|
|
}
|
|
frameQueue.with { frameQueue in
|
|
frameQueue.generateFramesIfNeeded()
|
|
}
|
|
}
|
|
}
|
|
|
|
public func playIfNeeded() -> Bool {
|
|
if !self.isPlaying {
|
|
self.isPlaying = true
|
|
self.play()
|
|
return true
|
|
}
|
|
return false
|
|
}
|
|
|
|
public func updateLayout(size: CGSize) {
|
|
self.renderer?.frame = CGRect(origin: CGPoint(), size: size)
|
|
}
|
|
}
|