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To and modify the "Downloaded image has 0 pixels" error exits bug download a file of the png format

This commit is contained in:
山崎友弘 2016-03-15 18:07:57 +09:00
parent 469d8bbfd8
commit 32ca18b523
1 changed files with 17 additions and 13 deletions
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16
SDWebImage/SDWebImageDecoder.m
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@ -33,9 +33,6 @@
if (anyAlpha) { return image; } if (anyAlpha) { return image; }
size_t width = CGImageGetWidth(imageRef);
size_t height = CGImageGetHeight(imageRef);
// current // current
CGColorSpaceModel imageColorSpaceModel = CGColorSpaceGetModel(CGImageGetColorSpace(imageRef)); CGColorSpaceModel imageColorSpaceModel = CGColorSpaceGetModel(CGImageGetColorSpace(imageRef));
CGColorSpaceRef colorspaceRef = CGImageGetColorSpace(imageRef); CGColorSpaceRef colorspaceRef = CGImageGetColorSpace(imageRef);
@ -44,10 +41,17 @@
if (unsupportedColorSpace) if (unsupportedColorSpace)
colorspaceRef = CGColorSpaceCreateDeviceRGB(); colorspaceRef = CGColorSpaceCreateDeviceRGB();
CGContextRef context = CGBitmapContextCreate(NULL, width, size_t width = CGImageGetWidth(imageRef);
size_t height = CGImageGetHeight(imageRef);
NSUInteger bytesPerPixel = 4;
NSUInteger bytesPerRow = bytesPerPixel * width;
NSUInteger bitsPerComponent = 8;
CGContextRef context = CGBitmapContextCreate(NULL,
width,
height, height,
CGImageGetBitsPerComponent(imageRef), bitsPerComponent,
0, bytesPerRow,
colorspaceRef, colorspaceRef,
kCGBitmapByteOrderDefault | kCGImageAlphaPremultipliedFirst); kCGBitmapByteOrderDefault | kCGImageAlphaPremultipliedFirst);