Question

+ (CGImageRef) newFliteredCGImage:(CGImageRef)image withCIFilter:(CIFilter*)filter {
    CIImage* input_image = [CIImage imageWithCGImage:image];
    NSSize image_size = NSMakeSize(CGImageGetWidth(image),
                                   CGImageGetHeight(image));

    [filter setValue:input_image forKey:kCIInputImageKey];
    CIImage* output_image = [filter valueForKey:kCIOutputImageKey];

    CGColorSpaceRef color_space = CGColorSpaceCreateDeviceRGB();
    CGContextRef bitmap_context
    = CGBitmapContextCreate(nil,
                            image_size.width,
                            image_size.height,
                            8,
                            image_size.width * 4,
                            color_space,
                            (CGBitmapInfo)kCGImageAlphaNoneSkipFirst);
    CGColorSpaceRelease(color_space);

    CIContext* ci_bitmap_context
    = [CIContext contextWithCGContext:bitmap_context
                              options:nil];
    [ci_bitmap_context drawImage:output_image
                          inRect:[output_image extent]
                        fromRect:(CGRect){CGPointZero, image_size}];

    CGImageRef result_img = CGBitmapContextCreateImage(bitmap_context);

    CGContextRelease(bitmap_context);

    return result_img;
}

参数的CGImageRef和返回的CGImageRef由CGImageRelease释放，但它有内存泄漏

我认为CIContext有问题，但我找不到问题

请给我帮助

Answer 1

在@autoReleasePool中进行..

Set<List<String>> keySet = new HashSet<>();
for (int i = 0; i <= totalrows; i++) {
    for (int j = 0; j < sheet.getRow(0).getPhysicalNumberOfCells(); j++) {
        HSSFCell cell = sheet.getRow(i).getCell(j);
        // writing keywords from excel into a hashmap

        data[i][j]=cell.getRichStringCellValue().getString();
    }
    keySet.add(Arrays.asList(data[i]));
}
Iterator<List<String>> iterator = keySet.iterator();
System.out.println("Output Set is as below");
while(iterator.hasNext()){
    List<String> next = iterator.next();
    System.out.println(next.get(0) + "\t"+ next.get(1) +"\t "+next.get(2));
}

希望它可以帮助你..

CIContext内存泄漏

1 个答案: