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Fix the issue that ImageIO max pixel size larger than image size will cause a upscale. This is not the documented behavior

This commit is contained in:
DreamPiggy 2020-05-15 11:02:05 +08:00
parent 5818cf70fd
commit 34ec3b7bf1
1 changed files with 1 additions and 1 deletions
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2
SDWebImage/Core/SDImageIOCoder.m
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@ -277,7 +277,7 @@ static NSString * kSDCGImageDestinationRequestedFileSize = @"kCGImageDestination
}
NSUInteger pixelWidth = CGImageGetWidth(imageRef);
NSUInteger pixelHeight = CGImageGetHeight(imageRef);
if (maxPixelSize.width > 0 && maxPixelSize.height > 0 && pixelWidth > 0 && pixelHeight > 0) {
if (maxPixelSize.width > 0 && maxPixelSize.height > 0 && pixelWidth > maxPixelSize.width && pixelHeight > maxPixelSize.height) {
CGFloat pixelRatio = pixelWidth / pixelHeight;
CGFloat maxPixelSizeRatio = maxPixelSize.width / maxPixelSize.height;
CGFloat finalPixelSize;