Fix memory leaks, sizes for image generation
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152a76935b
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@ -312,11 +312,12 @@ extension Element {
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var linkedElements: [LinkedElement] {
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let items = sortedItems
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return items.enumerated().map { i, element in
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let connected = items.enumerated().map { i, element in
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let previous = i+1 < items.count ? items[i+1] : nil
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let next = i > 0 ? items[i-1] : nil
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return (previous, element, next)
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}
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return connected + elements.filter { !$0.state.isShownInOverview }.map { (nil, $0, nil )}
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}
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/**
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@ -7,8 +7,8 @@ extension NSImage {
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guard self.size.width > size.width else {
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return self
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}
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return NSImage(size: size, flipped: false) { (resizedRect) -> Bool in
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self.draw(in: resizedRect)
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return NSImage(size: size, flipped: false) { [weak self] (resizedRect) -> Bool in
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self?.draw(in: resizedRect)
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return true
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}
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}
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@ -204,14 +204,13 @@ final class ImageGenerator {
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missingImages[source] = images.first?.path
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return
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}
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if imageHasChanged {
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// Update all images
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images.forEach { create(job: $0, from: image, source: source) }
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} else {
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// Update only missing images
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images
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.filter(isMissing)
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.forEach { create(job: $0, from: image, source: source) }
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let jobs = imageHasChanged ? images : images.filter(isMissing)
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// Update all images
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jobs.forEach { job in
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// Prevent memory overflow due to repeated NSImage operations
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autoreleasepool {
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create(job: job, from: image, source: source)
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}
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}
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}
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@ -224,31 +223,43 @@ final class ImageGenerator {
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fatalError()
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}
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let desiredWidth = CGFloat(image.size.width)
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let destinationSize = image.size.scaledDown(to: desiredWidth)
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let scaledImage = image.scaledDown(to: destinationSize)
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let scaledSize = scaledImage.size
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if abs(scaledSize.width - desiredWidth) > 2 {
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addWarning("Invalid width (\(scaledSize.width) instead of \(desiredWidth))", job: job)
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}
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if scaledSize.width > desiredWidth {
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addWarning("Invalid width (\(scaledSize.width) instead of \(desiredWidth))", job: job)
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}
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let destinationExtension = destinationUrl.pathExtension.lowercased()
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guard let type = ImageType(fileExtension: destinationExtension)?.fileType else {
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addWarning("Invalid image extension \(destinationExtension)", job: job)
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return
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}
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guard let tiff = scaledImage.tiffRepresentation, let tiffData = NSBitmapImageRep(data: tiff) else {
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addWarning("Failed to get data", job: job)
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return
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}
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guard let data = tiffData.representation(using: type, properties: [.compressionFactor: NSNumber(0.7)]) else {
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let desiredWidth = CGFloat(job.width)
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let sourceRep = image.representations[0]
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let destinationSize = NSSize(width: sourceRep.pixelsWide, height: sourceRep.pixelsHigh)
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.scaledDown(to: desiredWidth)
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//image.size.scaledDown(to: desiredWidth)
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print("\(job.destination):")
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print(" Source: \(image.size.width) x \(image.size.height)")
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print(" Wanted: \(destinationSize.width) x \(destinationSize.height) (\(job.width))")
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// create NSBitmapRep manually, if using cgImage, the resulting size is wrong
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let rep = NSBitmapImageRep(bitmapDataPlanes: nil,
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pixelsWide: Int(destinationSize.width),
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pixelsHigh: Int(destinationSize.height),
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bitsPerSample: 8,
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samplesPerPixel: 4,
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hasAlpha: true,
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isPlanar: false,
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colorSpaceName: NSColorSpaceName.deviceRGB,
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bytesPerRow: Int(destinationSize.width) * 4,
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bitsPerPixel: 32)!
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let ctx = NSGraphicsContext(bitmapImageRep: rep)
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NSGraphicsContext.saveGraphicsState()
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NSGraphicsContext.current = ctx
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image.draw(in: NSMakeRect(0, 0, destinationSize.width, destinationSize.height))
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ctx?.flushGraphics()
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NSGraphicsContext.restoreGraphicsState()
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// Get NSData, and save it
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guard let data = rep.representation(using: type, properties: [.compressionFactor: NSNumber(0.7)]) else {
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addWarning("Failed to get data", job: job)
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return
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}
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