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Merge pull request #1976 from dreampiggy/fix_CGBitmapContextCreate_memory_leak 

Fix CGBitmapContextCreate bitmap memory leak issue
This commit is contained in:
Bogdan Poplauschi 2017-08-02 14:15:04 +03:00 committed by GitHub
parent 49772b3bc9 5e367af7b5
commit a4a5e018c4
1 changed files with 1 additions and 8 deletions
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9
SDWebImage/SDWebImageDecoder.m
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@ -115,16 +115,10 @@ static const CGFloat kDestSeemOverlap = 2.0f; // the numbers of pixels to over
size_t bytesPerRow = kBytesPerPixel * destResolution.width; size_t bytesPerRow = kBytesPerPixel * destResolution.width;
// Allocate enough pixel data to hold the output image.
void* destBitmapData = malloc( bytesPerRow * destResolution.height );
if (destBitmapData == NULL) {
return image;
}
// kCGImageAlphaNone is not supported in CGBitmapContextCreate. // kCGImageAlphaNone is not supported in CGBitmapContextCreate.
// Since the original image here has no alpha info, use kCGImageAlphaNoneSkipLast // Since the original image here has no alpha info, use kCGImageAlphaNoneSkipLast
// to create bitmap graphics contexts without alpha info. // to create bitmap graphics contexts without alpha info.
destContext = CGBitmapContextCreate(destBitmapData, destContext = CGBitmapContextCreate(NULL,
destResolution.width, destResolution.width,
destResolution.height, destResolution.height,
kBitsPerComponent, kBitsPerComponent,
@ -133,7 +127,6 @@ static const CGFloat kDestSeemOverlap = 2.0f; // the numbers of pixels to over
kCGBitmapByteOrderDefault|kCGImageAlphaNoneSkipLast); kCGBitmapByteOrderDefault|kCGImageAlphaNoneSkipLast);
if (destContext == NULL) { if (destContext == NULL) {
free(destBitmapData);
return image; return image;
} }
CGContextSetInterpolationQuality(destContext, kCGInterpolationHigh); CGContextSetInterpolationQuality(destContext, kCGInterpolationHigh);