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Update the behavior that SDAnimatedImage should pass the path and scale to coder as well 

This metadata information is important for some edge cases decoding
This commit is contained in:
DreamPiggy 2023-10-21 18:14:38 +08:00
parent 42f35ca3f6
commit 0a0f7e10f6
1 changed files with 21 additions and 4 deletions
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25
SDWebImage/Core/SDAnimatedImage.m
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@ -114,7 +114,19 @@ static CGFloat SDImageScaleFromPath(NSString *string) {
- (instancetype)initWithContentsOfFile:(NSString *)path {
NSData *data = [NSData dataWithContentsOfFile:path];
return [self initWithData:data scale:SDImageScaleFromPath(path)];
if (!data) {
return nil;
}
CGFloat scale = SDImageScaleFromPath(path);
// path extension may be useful for coder like raw-image
NSString *fileExtensionHint = path.pathExtension; // without dot
if (fileExtensionHint.length == 0) {
// Ignore file extension which is empty
fileExtensionHint = nil;
}
SDImageCoderMutableOptions *mutableCoderOptions = [NSMutableDictionary dictionaryWithCapacity:1];
mutableCoderOptions[SDImageCoderDecodeFileExtensionHint] = fileExtensionHint;
return [self initWithData:data scale:scale options:[mutableCoderOptions copy]];
}
- (instancetype)initWithData:(NSData *)data {
@ -130,12 +142,17 @@ static CGFloat SDImageScaleFromPath(NSString *string) {
return nil;
}
id<SDAnimatedImageCoder> animatedCoder = nil;
SDImageCoderMutableOptions *mutableCoderOptions;
if (options != nil) {
mutableCoderOptions = [NSMutableDictionary dictionaryWithDictionary:options];
} else {
mutableCoderOptions = [NSMutableDictionary dictionaryWithCapacity:1];
}
mutableCoderOptions[SDImageCoderDecodeScaleFactor] = @(scale);
options = [mutableCoderOptions copy];
for (id<SDImageCoder>coder in [SDImageCodersManager sharedManager].coders.reverseObjectEnumerator) {
if ([coder conformsToProtocol:@protocol(SDAnimatedImageCoder)]) {
if ([coder canDecodeFromData:data]) {
if (!options) {
options = @{SDImageCoderDecodeScaleFactor : @(scale)};
}
animatedCoder = [[[coder class] alloc] initWithAnimatedImageData:data options:options];
break;
}