/*
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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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* 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 "SDWebImageCompat.h"
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#if SD_MAC
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#import "NSData+ImageContentType.h"
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/**
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A subclass of `NSBitmapImageRep` to fix that GIF duration issue because `NSBitmapImageRep` will reset `NSImageCurrentFrameDuration` by using `kCGImagePropertyGIFDelayTime` but not `kCGImagePropertyGIFUnclampedDelayTime`.
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This also fix the GIF loop count issue, which will use the Netscape standard (See http://www6.uniovi.es/gifanim/gifabout.htm) to only place once when the `kCGImagePropertyGIFLoopCount` is nil. This is what modern browser's behavior.
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Built in GIF coder use this instead of `NSBitmapImageRep` for better GIF rendering. If you do not want this, only enable `SDImageIOCoder`, which just call `NSImage` API and actually use `NSBitmapImageRep` for GIF image.
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This also support APNG format using `SDImageAPNGCoder`. Which provide full alpha-channel support and the correct duration match the `kCGImagePropertyAPNGUnclampedDelayTime`.
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*/
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@interface SDAnimatedImageRep : NSBitmapImageRep
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/// Current animated image format.
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/// @note This format is only valid when `animatedImageData` not nil
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@property (nonatomic, assign, readonly) SDImageFormat animatedImageFormat;
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/// This allows to retrive the compressed data like GIF using `sd_imageData` on parent `NSImage`, without re-encoding (waste CPU and RAM)
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/// @note This is typically nonnull when you create with `initWithData:`, even it's marked as weak, because ImageIO retain it
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@property (nonatomic, readonly, nullable, weak) NSData *animatedImageData;
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@end
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#endif
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