session-ios/SessionUtilitiesKit/Media/NSData+Image.h

25 lines
692 B
Objective-C

#import <UIKit/UIKit.h>
NS_ASSUME_NONNULL_BEGIN
@interface NSData (Image)
// If mimeType is non-nil, we ensure that the magic numbers agree with the
// mimeType.
+ (BOOL)ows_isValidImageAtPath:(NSString *)filePath;
+ (BOOL)ows_isValidImageAtPath:(NSString *)filePath mimeType:(nullable NSString *)mimeType;
- (BOOL)ows_isValidImage;
- (BOOL)ows_isValidImageWithMimeType:(nullable NSString *)mimeType;
- (NSString *_Nullable)ows_guessMimeType;
// Returns the image size in pixels.
//
// Returns CGSizeZero on error.
+ (CGSize)imageSizeForFilePath:(NSString *)filePath mimeType:(NSString *)mimeType;
+ (BOOL)hasAlphaForValidImageFilePath:(NSString *)filePath;
@end
NS_ASSUME_NONNULL_END