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Make DrawingContext initializer failable

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This commit is contained in:
Ali 2022-11-15 13:40:31 +04:00
parent 59e2c74d42
commit f07c30bd5b
39 changed files with 624 additions and 415 deletions
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81
submodules/StickerResources/Sources/StickerResources.swift
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@ -282,7 +282,9 @@ public func chatMessageLegacySticker(account: Account, file: TelegramMediaFile,
let arguments = TransformImageArguments(corners: preArguments.corners, imageSize: contextSize, boundingSize: contextSize, intrinsicInsets: preArguments.intrinsicInsets)
let context = DrawingContext(size: arguments.drawingSize, clear: true)
guard let context = DrawingContext(size: arguments.drawingSize, clear: true) else {
return nil
}
let thumbnailImage: CGImage? = nil
@ -290,14 +292,15 @@ public func chatMessageLegacySticker(account: Account, file: TelegramMediaFile,
if let thumbnailImage = thumbnailImage {
let thumbnailSize = CGSize(width: thumbnailImage.width, height: thumbnailImage.height)
let thumbnailContextSize = thumbnailSize.aspectFitted(CGSize(width: 150.0, height: 150.0))
let thumbnailContext = DrawingContext(size: thumbnailContextSize, scale: 1.0)
thumbnailContext.withFlippedContext { c in
c.interpolationQuality = .none
c.draw(thumbnailImage, in: CGRect(origin: CGPoint(), size: thumbnailContextSize))
if let thumbnailContext = DrawingContext(size: thumbnailContextSize, scale: 1.0) {
thumbnailContext.withFlippedContext { c in
c.interpolationQuality = .none
c.draw(thumbnailImage, in: CGRect(origin: CGPoint(), size: thumbnailContextSize))
}
imageFastBlur(Int32(thumbnailContextSize.width), Int32(thumbnailContextSize.height), Int32(thumbnailContext.bytesPerRow), thumbnailContext.bytes)
blurredThumbnailImage = thumbnailContext.generateImage()
}
imageFastBlur(Int32(thumbnailContextSize.width), Int32(thumbnailContextSize.height), Int32(thumbnailContext.bytesPerRow), thumbnailContext.bytes)
blurredThumbnailImage = thumbnailContext.generateImage()
}
context.withFlippedContext { c in
@ -341,7 +344,9 @@ public func chatMessageStickerPackThumbnail(postbox: Postbox, resource: MediaRes
}
}
let context = DrawingContext(size: arguments.drawingSize, scale: arguments.scale ?? 0.0, clear: arguments.emptyColor == nil)
guard let context = DrawingContext(size: arguments.drawingSize, scale: arguments.scale ?? 0.0, clear: arguments.emptyColor == nil) else {
return nil
}
let drawingRect = arguments.drawingRect
let fittedSize = arguments.imageSize
@ -403,7 +408,9 @@ public func chatMessageSticker(postbox: Postbox, file: TelegramMediaFile, small:
return nil
}
let context = DrawingContext(size: arguments.drawingSize, scale: arguments.scale ?? 0.0, clear: arguments.emptyColor == nil)
guard let context = DrawingContext(size: arguments.drawingSize, scale: arguments.scale ?? 0.0, clear: arguments.emptyColor == nil) else {
return nil
}
let drawingRect = arguments.drawingRect
let fittedSize = arguments.imageSize
@ -432,20 +439,21 @@ public func chatMessageSticker(postbox: Postbox, file: TelegramMediaFile, small:
let thumbnailDrawingSize = thumbnailContextSize
thumbnailContextSize.width += thumbnailInset * 2.0
thumbnailContextSize.height += thumbnailInset * 2.0
let thumbnailContext = DrawingContext(size: thumbnailContextSize, scale: 1.0, clear: true)
thumbnailContext.withFlippedContext { c in
if let cgImage = thumbnailImage.0.cgImage, let cgImageAlpha = thumbnailImage.1.cgImage {
c.setBlendMode(.normal)
c.interpolationQuality = .medium
let mask = CGImage(maskWidth: cgImageAlpha.width, height: cgImageAlpha.height, bitsPerComponent: cgImageAlpha.bitsPerComponent, bitsPerPixel: cgImageAlpha.bitsPerPixel, bytesPerRow: cgImageAlpha.bytesPerRow, provider: cgImageAlpha.dataProvider!, decode: nil, shouldInterpolate: true)
c.draw(cgImage.masking(mask!)!, in: CGRect(origin: CGPoint(x: thumbnailInset, y: thumbnailInset), size: thumbnailDrawingSize))
if let thumbnailContext = DrawingContext(size: thumbnailContextSize, scale: 1.0, clear: true) {
thumbnailContext.withFlippedContext { c in
if let cgImage = thumbnailImage.0.cgImage, let cgImageAlpha = thumbnailImage.1.cgImage {
c.setBlendMode(.normal)
c.interpolationQuality = .medium
let mask = CGImage(maskWidth: cgImageAlpha.width, height: cgImageAlpha.height, bitsPerComponent: cgImageAlpha.bitsPerComponent, bitsPerPixel: cgImageAlpha.bitsPerPixel, bytesPerRow: cgImageAlpha.bytesPerRow, provider: cgImageAlpha.dataProvider!, decode: nil, shouldInterpolate: true)
c.draw(cgImage.masking(mask!)!, in: CGRect(origin: CGPoint(x: thumbnailInset, y: thumbnailInset), size: thumbnailDrawingSize))
}
}
stickerThumbnailAlphaBlur(Int32(thumbnailContextSize.width), Int32(thumbnailContextSize.height), Int32(thumbnailContext.bytesPerRow), thumbnailContext.bytes)
blurredThumbnailImage = thumbnailContext.generateImage()
}
stickerThumbnailAlphaBlur(Int32(thumbnailContextSize.width), Int32(thumbnailContextSize.height), Int32(thumbnailContext.bytesPerRow), thumbnailContext.bytes)
blurredThumbnailImage = thumbnailContext.generateImage()
}
context.withFlippedContext { c in
@ -498,7 +506,9 @@ public func chatMessageAnimatedSticker(postbox: Postbox, file: TelegramMediaFile
return nil
}
let context = DrawingContext(size: arguments.drawingSize, scale: arguments.scale ?? 0.0, clear: true)
guard let context = DrawingContext(size: arguments.drawingSize, scale: arguments.scale ?? 0.0, clear: true) else {
return nil
}
let drawingRect = arguments.drawingRect
let fittedSize = arguments.imageSize
@ -526,20 +536,21 @@ public func chatMessageAnimatedSticker(postbox: Postbox, file: TelegramMediaFile
let thumbnailDrawingSize = thumbnailContextSize
thumbnailContextSize.width += thumbnailInset * 2.0
thumbnailContextSize.height += thumbnailInset * 2.0
let thumbnailContext = DrawingContext(size: thumbnailContextSize, scale: 1.0, clear: true)
thumbnailContext.withFlippedContext { c in
if let cgImage = thumbnailImage.0.cgImage, let cgImageAlpha = thumbnailImage.1.cgImage {
c.setBlendMode(.normal)
c.interpolationQuality = .medium
let mask = CGImage(maskWidth: cgImageAlpha.width, height: cgImageAlpha.height, bitsPerComponent: cgImageAlpha.bitsPerComponent, bitsPerPixel: cgImageAlpha.bitsPerPixel, bytesPerRow: cgImageAlpha.bytesPerRow, provider: cgImageAlpha.dataProvider!, decode: nil, shouldInterpolate: true)
c.draw(cgImage.masking(mask!)!, in: CGRect(origin: CGPoint(x: thumbnailInset, y: thumbnailInset), size: thumbnailDrawingSize))
if let thumbnailContext = DrawingContext(size: thumbnailContextSize, scale: 1.0, clear: true) {
thumbnailContext.withFlippedContext { c in
if let cgImage = thumbnailImage.0.cgImage, let cgImageAlpha = thumbnailImage.1.cgImage {
c.setBlendMode(.normal)
c.interpolationQuality = .medium
let mask = CGImage(maskWidth: cgImageAlpha.width, height: cgImageAlpha.height, bitsPerComponent: cgImageAlpha.bitsPerComponent, bitsPerPixel: cgImageAlpha.bitsPerPixel, bytesPerRow: cgImageAlpha.bytesPerRow, provider: cgImageAlpha.dataProvider!, decode: nil, shouldInterpolate: true)
c.draw(cgImage.masking(mask!)!, in: CGRect(origin: CGPoint(x: thumbnailInset, y: thumbnailInset), size: thumbnailDrawingSize))
}
}
stickerThumbnailAlphaBlur(Int32(thumbnailContextSize.width), Int32(thumbnailContextSize.height), Int32(thumbnailContext.bytesPerRow), thumbnailContext.bytes)
blurredThumbnailImage = thumbnailContext.generateImage()
}
stickerThumbnailAlphaBlur(Int32(thumbnailContextSize.width), Int32(thumbnailContextSize.height), Int32(thumbnailContext.bytesPerRow), thumbnailContext.bytes)
blurredThumbnailImage = thumbnailContext.generateImage()
}
context.withFlippedContext { c in