ThePain/Swiftgram
1
0
Fork 0
mirror of https://github.com/Swiftgram/Telegram-iOS.git synced 2025-06-16 05:55:20 +00:00
Code Issues Packages Projects Releases Wiki Activity

Fix warning

Browse Source
This commit is contained in:
Ilya Laktyushin 2023-03-07 12:52:34 +04:00
parent c44260bdff
commit c5cf2e88be
1 changed files with 22 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

30
submodules/ImageTransparency/Sources/ImageTransparency.swift
View File

@ -29,17 +29,31 @@ private func generateHistogram(cgImage: CGImage) -> ([[vImagePixelCount]], Int)?
} }
assert(error == kvImageNoError) assert(error == kvImageNoError)
let histogramBins: [[vImagePixelCount]] = (0...3).map { _ in var histogramBinZero = [vImagePixelCount](repeating: 0, count: 256)
return [vImagePixelCount](repeating: 0, count: 256) var histogramBinOne = [vImagePixelCount](repeating: 0, count: 256)
} var histogramBinTwo = [vImagePixelCount](repeating: 0, count: 256)
var mutableHistogram: [UnsafeMutablePointer<vImagePixelCount>?] = histogramBins.map { var histogramBinThree = [vImagePixelCount](repeating: 0, count: 256)
return UnsafeMutablePointer<vImagePixelCount>(mutating: $0)
} histogramBinZero.withUnsafeMutableBufferPointer { zeroPtr in
error = vImageHistogramCalculation_ARGB8888(&sourceBuffer, &mutableHistogram, noFlags) histogramBinOne.withUnsafeMutableBufferPointer { onePtr in
histogramBinTwo.withUnsafeMutableBufferPointer { twoPtr in
histogramBinThree.withUnsafeMutableBufferPointer { threePtr in
var histogramBins = [zeroPtr.baseAddress, onePtr.baseAddress, twoPtr.baseAddress, threePtr.baseAddress]
histogramBins.withUnsafeMutableBufferPointer { histogramBinsPtr in
let error = vImageHistogramCalculation_ARGB8888(
&sourceBuffer,
histogramBinsPtr.baseAddress!,
noFlags
)
assert(error == kvImageNoError) assert(error == kvImageNoError)
}
}
}
}
}
let alphaBinIndex = [.last, .premultipliedLast].contains(cgImage.alphaInfo) ? 3 : 0 let alphaBinIndex = [.last, .premultipliedLast].contains(cgImage.alphaInfo) ? 3 : 0
return (histogramBins, alphaBinIndex) return ([histogramBinZero, histogramBinOne, histogramBinTwo, histogramBinThree], alphaBinIndex)
} }
public func imageHasTransparency(_ cgImage: CGImage) -> Bool { public func imageHasTransparency(_ cgImage: CGImage) -> Bool {