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26 lines
740 B
Objective-C
26 lines
740 B
Objective-C
//
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// Copyright (c) 2019 Open Whisper Systems. All rights reserved.
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//
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NS_ASSUME_NONNULL_BEGIN
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@interface NSData (Image)
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// If mimeType is non-nil, we ensure that the magic numbers agree with the
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// mimeType.
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+ (BOOL)ows_isValidImageAtPath:(NSString *)filePath;
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+ (BOOL)ows_isValidImageAtPath:(NSString *)filePath mimeType:(nullable NSString *)mimeType;
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- (BOOL)ows_isValidImage;
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- (BOOL)ows_isValidImageWithMimeType:(nullable NSString *)mimeType;
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- (NSString *_Nullable)ows_guessMimeType;
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// Returns the image size in pixels.
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//
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// Returns CGSizeZero on error.
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+ (CGSize)imageSizeForFilePath:(NSString *)filePath mimeType:(NSString *)mimeType;
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+ (BOOL)hasAlphaForValidImageFilePath:(NSString *)filePath;
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@end
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NS_ASSUME_NONNULL_END
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