Fix alpha handling in image decoder (fix #204)

Olivier Poitrey
Commit 048bdbb751ed19a357d58438ce1f2e15ae7dc4b1 1 parent c6090273
Showing 1 changed file with 2 additions and 2 deletions
SDWebImage/SDWebImageDecoder.m
--- a/SDWebImage/SDWebImageDecoder.m
View file @048bdbb
+++ b/SDWebImage/SDWebImageDecoder.m
View file @048bdbb
@@ -104,8 +104,8 @@ static SDWebImageDecoder *sharedInstance;
                               alphaInfo != kCGImageAlphaNoneSkipFirst &&
                               alphaInfo != kCGImageAlphaNoneSkipLast);
 
-     int bytesPerPixel = imageHasAlphaInfo ? 4 : 3;
-     CGBitmapInfo bitmapInfo = imageHasAlphaInfo ? kCGImageAlphaPremultipliedLast : kCGImageAlphaNone;
+     int bytesPerPixel = alphaInfo != kCGImageAlphaNone ? 4 : 3;
+     CGBitmapInfo bitmapInfo = imageHasAlphaInfo ? kCGImageAlphaPremultipliedLast : alphaInfo;
 
     CGContextRef context = CGBitmapContextCreate(NULL,
                                                  CGImageGetWidth(imageRef),