update .gitignore

developer

2023-05-20 e12c7b4c22df631ebdcd16b2f98fbef8f738f92f

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#import "GPUImageAverageLuminanceThresholdFilter.h"
#import "GPUImageLuminosity.h"
#import "GPUImageLuminanceThresholdFilter.h"
 
@interface GPUImageAverageLuminanceThresholdFilter()
{
    GPUImageLuminosity *luminosityFilter;
    GPUImageLuminanceThresholdFilter *luminanceThresholdFilter;
}
@end
 
@implementation GPUImageAverageLuminanceThresholdFilter
 
@synthesize thresholdMultiplier = _thresholdMultiplier;
 
#pragma mark -
#pragma mark Initialization and teardown
 
- (id)init;
{
    if (!(self = [super init]))
    {
        return nil;
    }
    
    self.thresholdMultiplier = 1.0;
    
    luminosityFilter = [[GPUImageLuminosity alloc] init];
    [self addFilter:luminosityFilter];
    
    luminanceThresholdFilter = [[GPUImageLuminanceThresholdFilter alloc] init];
    [self addFilter:luminanceThresholdFilter];
    
    __unsafe_unretained GPUImageAverageLuminanceThresholdFilter *weakSelf = self;
    __unsafe_unretained GPUImageLuminanceThresholdFilter *weakThreshold = luminanceThresholdFilter;
    
    [luminosityFilter setLuminosityProcessingFinishedBlock:^(CGFloat luminosity, CMTime frameTime) {
        weakThreshold.threshold = luminosity * weakSelf.thresholdMultiplier;
    }];
    
    self.initialFilters = [NSArray arrayWithObjects:luminosityFilter, luminanceThresholdFilter, nil];
    self.terminalFilter = luminanceThresholdFilter;
    
    return self;
}
 
@end