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FBImageResourceLoader.m
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FBImageResourceLoader.m
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/*
* Copyright 2010-present Facebook.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#import "FBImageResourceLoader.h"
#import "FBSettings.h"
#import "FBUtility.h"
@implementation FBImageResourceLoader
+ (UIImage*) loadImageFromBytes:(const Byte*)bytes
length:(NSUInteger)length
scale:(CGFloat)scale {
NSData *data = [NSData dataWithBytesNoCopy:(void*)bytes length:length freeWhenDone:NO];
UIImage *image = [UIImage imageWithData:data scale:scale];
return image;
}
+ (UIImage*) imageFromBytes:(const Byte *)bytes
length:(NSUInteger)length
fromRetinaBytes:(const Byte *)retinaBytes
retinaLength:(NSUInteger)retinaLength {
if ([FBUtility isRetinaDisplay]) {
return [FBImageResourceLoader loadImageFromBytes:retinaBytes length:retinaLength scale:2.0];
} else {
return [FBImageResourceLoader loadImageFromBytes:bytes length:length scale:1.0];
}
}
+ (UIImage*) imageNamed:(NSString *)imageName
fromBytes:(const Byte *)bytes
length:(NSUInteger)length
fromRetinaBytes:(const Byte *)retinaBytes
retinaLength:(NSUInteger)retinaLength {
NSString *bundleName = [FBSettings resourceBundleName];
if (bundleName) {
UIImage *image = [UIImage imageNamed:[NSString stringWithFormat:@"%@.bundle/%@", bundleName, imageName]];
if (image) {
return image;
}
}
return [FBImageResourceLoader imageFromBytes:bytes
length:length
fromRetinaBytes:retinaBytes
retinaLength:retinaLength];
}
@end