40 lines
1.3 KiB
Objective-C
40 lines
1.3 KiB
Objective-C
/*
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* This file is part of the SDWebImage package.
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* (c) Olivier Poitrey <rs@dailymotion.com>
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*
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* Created by james <https://github.com/mystcolor> on 9/28/11.
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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#import "SDWebImageDecoder.h"
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@implementation UIImage (ForceDecode)
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+ (UIImage *)decodedImageWithImage:(UIImage *)image
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{
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CGImageRef imageRef = image.CGImage;
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CGSize imageSize = CGSizeMake(CGImageGetWidth(imageRef), CGImageGetHeight(imageRef));
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CGRect imageRect = (CGRect){.origin = CGPointZero, .size = imageSize};
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CGColorSpaceRef colorSpace = CGColorSpaceCreateDeviceRGB();
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CGBitmapInfo bitmapInfo = CGImageGetBitmapInfo(imageRef);
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CGContextRef context;
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context = CGBitmapContextCreate(NULL, imageSize.width, imageSize.height, 8, imageSize.width * 4, colorSpace, bitmapInfo);
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CGColorSpaceRelease(colorSpace);
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if (!context) return nil;
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CGContextDrawImage(context, imageRect, imageRef);
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CGImageRef decompressedImageRef = CGBitmapContextCreateImage(context);
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CGContextRelease(context);
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UIImage *decompressedImage = [UIImage imageWithCGImage:decompressedImageRef];
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CGImageRelease(decompressedImageRef);
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return decompressedImage;
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}
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@end
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