ios / yh_sdwebimage · Commits

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Authored by Olivier Poitrey
Commit 6aca6a2100fef451745685a3b2ef871a140d09ca 2 parents 853ad836 adffebc8

Merge pull request #604 from akhenakh/webp_detect 

Webp detect
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Showing 7 changed files with 80 additions and 73 deletions
//
// Created by Fabrice Aneche on 06/01/14.
// Copyright (c) 2014 Dailymotion. All rights reserved.
//
#import <Foundation/Foundation.h>
@interface NSData (ImageContentType)
+ (NSString *)contentTypeForImageData:(NSData *)data;
@end
... ...
//
// Created by Fabrice Aneche on 06/01/14.
// Copyright (c) 2014 Dailymotion. All rights reserved.
//
#import "NSData+ImageContentType.h"
@implementation NSData (ImageContentType)
+ (NSString *)contentTypeForImageData:(NSData *)data
{
uint8_t c;
[data getBytes:&c length:1];
switch (c)
{
case 0xFF:
return @"image/jpeg";
case 0x89:
return @"image/png";
case 0x47:
return @"image/gif";
case 0x49:
case 0x4D:
return @"image/tiff";
case 0x52:
// R as RIFF for WEBP
if ([data length] < 12)
{
return nil;
}
NSString *testString = [[NSString alloc] initWithData:[data subdataWithRange:NSMakeRange(0, 12)] encoding:NSASCIIStringEncoding];
if ([testString hasPrefix:@"RIFF"] && [testString hasSuffix:@"WEBP"])
{
return @"image/webp";
}
return nil;
}
return nil;
}
@end
... ...
... ... @@ -22,6 +22,12 @@
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... ... @@ -77,7 +83,6 @@
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... ... @@ -119,7 +124,6 @@
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... ... @@ -187,10 +191,6 @@
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... ... @@ -204,6 +204,8 @@
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... ... @@ -277,8 +279,6 @@
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... ... @@ -365,8 +365,6 @@
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... ... @@ -377,6 +375,8 @@
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... ... @@ -504,7 +504,6 @@
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... ... @@ -522,6 +521,7 @@
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... ... @@ -540,8 +540,8 @@
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... ...
//
// NSData+GIF.h
// SDWebImage
//
// Created by Andy LaVoy on 4/28/13.
// Copyright (c) 2013 Dailymotion. All rights reserved.
//
#import <Foundation/Foundation.h>
@interface NSData (GIF)
- (BOOL)sd_isGIF;
@end
//
// NSData+GIF.m
// SDWebImage
//
// Created by Andy LaVoy on 4/28/13.
// Copyright (c) 2013 Dailymotion. All rights reserved.
//
#import "NSData+GIF.h"
@implementation NSData (GIF)
- (BOOL)sd_isGIF
{
BOOL isGIF = NO;
uint8_t c;
[self getBytes:&c length:1];
switch (c)
{
case 0x47: // probably a GIF
isGIF = YES;
break;
default:
break;
}
return isGIF;
}
@end
... ... @@ -6,7 +6,6 @@
// Copyright (c) 2012 __MyCompanyName__. All rights reserved.
//
#import "NSData+GIF.h"
#import <UIKit/UIKit.h>
@interface UIImage (GIF)
... ...
... ... @@ -8,7 +8,7 @@
#import "UIImage+MultiFormat.h"
#import "UIImage+GIF.h"
#import "NSData+ImageContentType.h"
#ifdef SD_WEBP
#import "UIImage+WebP.h"
#endif
... ... @@ -18,22 +18,23 @@
+ (UIImage *)sd_imageWithData:(NSData *)data
{
UIImage *image;
if ([data sd_isGIF])
NSString *imageContentType = [NSData contentTypeForImageData:data];
if ([imageContentType isEqualToString:@"image/gif"])
{
image = [UIImage sd_animatedGIFWithData:data];
}
else
{
image = [[UIImage alloc] initWithData:data];
}
#ifdef SD_WEBP
if (!image) // TODO: detect webp signature
else if ([imageContentType isEqualToString:@"image/webp"])
{
image = [UIImage sd_imageWithWebPData:data];
}
#endif
else
{
image = [[UIImage alloc] initWithData:data];
}
return image;
}
... ...