author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Thu, 17 Dec 2009 09:20:16 +0200 | |
changeset 25 | 0ed94ceaa377 |
parent 0 | dd21522fd290 |
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/* |
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* Copyright (C) 2006 Oliver Hunt <ojh16@student.canterbury.ac.nz>. All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in the |
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* documentation and/or other materials provided with the distribution. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY |
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR |
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY |
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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*/ |
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#import "config.h" |
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#import "WKDiscreteTransferFilter.h" |
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#if ENABLE(SVG) && ENABLE(SVG_EXPERIMENTAL_FEATURES) |
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static CIKernel *discreteTransferFilter = nil; |
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@implementation WKDiscreteTransferFilter |
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+ (void)initialize |
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{ |
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[CIFilter registerFilterName:@"WKDiscreteTransfer" |
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constructor:self |
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classAttributes:[NSDictionary dictionaryWithObjectsAndKeys: |
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@"WebKit Discrete Transfer", kCIAttributeFilterDisplayName, |
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[NSArray arrayWithObjects:kCICategoryStylize, kCICategoryVideo, |
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kCICategoryStillImage, kCICategoryNonSquarePixels,nil], kCIAttributeFilterCategories, |
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nil]]; |
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} |
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+ (CIFilter *)filterWithName:(NSString *)name |
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{ |
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return [[[self alloc] init] autorelease]; |
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} |
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- (id)init |
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{ |
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if (!discreteTransferFilter) { |
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NSBundle *bundle = [NSBundle bundleForClass:[self class]]; |
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NSString *kernelFile = [bundle pathForResource:@"WKDiscreteTransferFilter" ofType:@"cikernel"]; |
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NSString *code = [NSString stringWithContentsOfFile:kernelFile encoding:NSUTF8StringEncoding error:0]; |
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NSArray *kernels = [CIKernel kernelsWithString:code]; |
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discreteTransferFilter = [[kernels objectAtIndex:0] retain]; |
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} |
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return [super init]; |
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} |
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- (CIImage *)outputImage |
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{ |
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CISampler *inputSampler = [CISampler samplerWithImage: inputImage]; |
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CISampler *tableSampler = [CISampler samplerWithImage: inputTable keysAndValues:kCISamplerFilterMode, kCISamplerFilterNearest, kCISamplerWrapMode, kCISamplerWrapClamp, nil]; |
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NSArray *args = [NSArray arrayWithObjects:inputSampler, tableSampler, inputSelector, |
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[NSNumber numberWithDouble:[inputTable extent].size.width - 1.0f], @"definition", [inputSampler definition], nil]; |
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return [self apply:discreteTransferFilter arguments:args options:nil]; |
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} |
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@end |
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#endif // ENABLE(SVG) && ENABLE(SVG_EXPERIMENTAL_FEATURES) |