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updated ScanLine Filter
git-svn-id: svn://qnap.local/TwoTerm/trunk@2011 5590a31f-7b70-45f8-8c82-aa3a8e5f4507
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@ -11,7 +11,8 @@
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@interface ScanLineFilter : CIFilter {
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NSNumber *inputStrength;
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NSNumber *inputLighten;
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NSNumber *inputDarken;
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CIImage *inputImage;
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}
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@ -47,10 +47,20 @@ static CIKernel *_kernel = nil;
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[NSNumber numberWithDouble: 0.00], kCIAttributeMax,
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[NSNumber numberWithDouble: 0.00], kCIAttributeSliderMin,
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[NSNumber numberWithDouble: 1.00], kCIAttributeSliderMax,
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[NSNumber numberWithDouble: 0.40], kCIAttributeDefault,
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[NSNumber numberWithDouble: 0.00], kCIAttributeDefault,
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[NSNumber numberWithDouble: 0.00], kCIAttributeIdentity,
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kCIAttributeTypeDistance, kCIAttributeType,
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nil], @"inputStrength",
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nil], @"inputLighten",
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[NSDictionary dictionaryWithObjectsAndKeys:
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[NSNumber numberWithDouble: 0.00], kCIAttributeMin,
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[NSNumber numberWithDouble: 0.00], kCIAttributeMax,
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[NSNumber numberWithDouble: 0.00], kCIAttributeSliderMin,
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[NSNumber numberWithDouble: 1.00], kCIAttributeSliderMax,
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[NSNumber numberWithDouble: 0.80], kCIAttributeDefault,
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[NSNumber numberWithDouble: 0.00], kCIAttributeIdentity,
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kCIAttributeTypeDistance, kCIAttributeType,
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nil], @"inputDarken",
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nil];
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}
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@ -59,16 +69,21 @@ static CIKernel *_kernel = nil;
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// called when setting up for fragment program and also calls fragment program
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- (CIImage *)outputImage
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{
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float strength;
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float l, d;
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CISampler *src;
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src = [CISampler samplerWithImage:inputImage];
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src = [CISampler samplerWithImage: inputImage];
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strength = [inputStrength floatValue];
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if (strength < 0) strength = 0;
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if (strength > 1.0) strength = 1.0;
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l = [inputLighten floatValue];
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d = [inputDarken floatValue];
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return [self apply: _kernel, src, [NSNumber numberWithFloat: strength], nil];
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if (l < 0) l = 0;
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if (l > 1.0) l = 1.0;
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if (d < 0) d = 0;
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if (d > 1.0) d = 1.0;
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return [self apply: _kernel, src, [NSNumber numberWithFloat: l], [NSNumber numberWithFloat: d], nil];
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}
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