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Restore wide color

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This commit is contained in:
Ali 2021-06-24 02:36:38 +04:00
parent b0c78bf1df
commit 30b6b7106b
1 changed files with 74 additions and 19 deletions
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93
submodules/Display/Source/GenerateImage.swift
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@ -372,33 +372,88 @@ public enum DrawingContextBltMode {
case Alpha
}
public struct DeviceGraphicsContextSettings {
public static let shared: DeviceGraphicsContextSettings = {
public func getSharedDevideGraphicsContextSettings() -> DeviceGraphicsContextSettings {
struct OpaqueSettings {
let rowAlignment: Int
let bitsPerPixel: Int
let bitsPerComponent: Int
let opaqueBitmapInfo: CGBitmapInfo
let colorSpace: CGColorSpace
init(context: CGContext) {
self.rowAlignment = context.bytesPerRow
self.bitsPerPixel = context.bitsPerPixel
self.bitsPerComponent = context.bitsPerComponent
self.opaqueBitmapInfo = context.bitmapInfo
if #available(iOS 10.0, *) {
if UIScreen.main.traitCollection.displayGamut == .P3 {
self.colorSpace = CGColorSpace(name: CGColorSpace.displayP3) ?? context.colorSpace!
} else {
self.colorSpace = context.colorSpace!
}
} else {
self.colorSpace = context.colorSpace!
}
assert(self.rowAlignment == 32)
assert(self.bitsPerPixel == 32)
assert(self.bitsPerComponent == 8)
}
}
struct TransparentSettings {
let transparentBitmapInfo: CGBitmapInfo
init(context: CGContext) {
self.transparentBitmapInfo = context.bitmapInfo
}
}
var opaqueSettings: OpaqueSettings?
var transparentSettings: TransparentSettings?
if #available(iOS 10.0, *) {
let opaqueFormat = UIGraphicsImageRendererFormat()
let transparentFormat = UIGraphicsImageRendererFormat()
if #available(iOS 12.0, *) {
opaqueFormat.preferredRange = .standard
transparentFormat.preferredRange = .standard
}
opaqueFormat.opaque = true
transparentFormat.opaque = false
let opaqueRenderer = UIGraphicsImageRenderer(bounds: CGRect(origin: CGPoint(), size: CGSize(width: 1.0, height: 1.0)), format: opaqueFormat)
let _ = opaqueRenderer.image(actions: { context in
opaqueSettings = OpaqueSettings(context: context.cgContext)
})
let transparentRenderer = UIGraphicsImageRenderer(bounds: CGRect(origin: CGPoint(), size: CGSize(width: 1.0, height: 1.0)), format: transparentFormat)
let _ = transparentRenderer.image(actions: { context in
transparentSettings = TransparentSettings(context: context.cgContext)
})
} else {
UIGraphicsBeginImageContextWithOptions(CGSize(width: 1.0, height: 1.0), true, 1.0)
let refContext = UIGraphicsGetCurrentContext()!
let bytesPerRow = refContext.bytesPerRow
let bitsPerPixel = refContext.bitsPerPixel
let bitsPerComponent = refContext.bitsPerComponent
let opaqueBitmapInfo = refContext.bitmapInfo
let image = UIGraphicsGetImageFromCurrentImageContext()!
let colorSpace = image.cgImage!.colorSpace!
assert(bytesPerRow == 32)
opaqueSettings = OpaqueSettings(context: refContext)
UIGraphicsEndImageContext()
UIGraphicsBeginImageContextWithOptions(CGSize(width: 1.0, height: 1.0), false, 1.0)
let refCtxTransparent = UIGraphicsGetCurrentContext()!
let transparentBitmapInfo = refCtxTransparent.bitmapInfo
transparentSettings = TransparentSettings(context: refCtxTransparent)
UIGraphicsEndImageContext()
}
return DeviceGraphicsContextSettings(
rowAlignment: bytesPerRow,
bitsPerPixel: bitsPerPixel,
bitsPerComponent: bitsPerComponent,
opaqueBitmapInfo: opaqueBitmapInfo,
transparentBitmapInfo: transparentBitmapInfo,
colorSpace: colorSpace
)
}()
return DeviceGraphicsContextSettings(
rowAlignment: opaqueSettings!.rowAlignment,
bitsPerPixel: opaqueSettings!.bitsPerPixel,
bitsPerComponent: opaqueSettings!.bitsPerComponent,
opaqueBitmapInfo: opaqueSettings!.opaqueBitmapInfo,
transparentBitmapInfo: transparentSettings!.transparentBitmapInfo,
colorSpace: opaqueSettings!.colorSpace
)
}
public struct DeviceGraphicsContextSettings {
public static let shared: DeviceGraphicsContextSettings = getSharedDevideGraphicsContextSettings()
public let rowAlignment: Int
public let bitsPerPixel: Int