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| 25 | |
| 26 | #import "config.h" |
| 27 | #import "FEGaussianBlurCoreImageApplier.h" |
| 28 | |
| 29 | #if USE(CORE_IMAGE) |
| 30 | |
| 31 | #import "ColorSpaceCG.h" |
| 32 | #import "FEGaussianBlur.h" |
| 33 | #import "Filter.h" |
| 34 | #import "Logging.h" |
| 35 | #import <CoreImage/CIFilterBuiltins.h> |
| 36 | #import <CoreImage/CoreImage.h> |
| 37 | #import <wtf/BlockObjCExceptions.h> |
| 38 | #import <wtf/NeverDestroyed.h> |
| 39 | #import <wtf/TZoneMallocInlines.h> |
| 40 | |
| 41 | namespace WebCore { |
| 42 | |
| 43 | WTF_MAKE_TZONE_ALLOCATED_IMPL(FEGaussianBlurCoreImageApplier); |
| 44 | |
| 45 | FEGaussianBlurCoreImageApplier::FEGaussianBlurCoreImageApplier(const FEGaussianBlur& effect) |
| 46 | : Base(effect) |
| 47 | { |
| 48 | } |
| 49 | |
| 50 | bool FEGaussianBlurCoreImageApplier::supportsCoreImageRendering(const FEGaussianBlur&) |
| 51 | { |
| 52 | return true; |
| 53 | } |
| 54 | |
| 55 | bool FEGaussianBlurCoreImageApplier::apply(const Filter& filter, std::span<const Ref<FilterImage>> inputs, FilterImage& result) const |
| 56 | { |
| 57 | BEGIN_BLOCK_OBJC_EXCEPTIONS |
| 58 | |
| 59 | ASSERT(inputs.size() == 1); |
| 60 | auto& input = inputs[0].get(); |
| Local variable 'input' is uncounted and unsafe |
| 61 | |
| 62 | RetainPtr inputImage = input.ciImage(); |
| 63 | if (!inputImage) |
| 64 | return false; |
| 65 | |
| 66 | |
| 67 | auto absoluteStdDeviation = filter.scaledByFilterScale(FloatSize(m_effect->stdDeviationX(), m_effect->stdDeviationY())); |
| 68 | |
| 69 | auto ciFilter = [CIFilter filterWithName:@"CIGaussianBlurXY"]; |
| 70 | [ciFilter setValue:inputImage.get() forKey:kCIInputImageKey]; |
| 71 | [ciFilter setValue:@(absoluteStdDeviation.width()) forKey:@"inputSigmaX"]; |
| 72 | [ciFilter setValue:@(absoluteStdDeviation.height()) forKey:@"inputSigmaY"]; |
| 73 | |
| 74 | auto cropRect = filter.flippedRectRelativeToAbsoluteEnclosingFilterRegion(result.absoluteImageRect()); |
| 75 | RetainPtr image = [[ciFilter outputImage] imageByCroppingToRect:cropRect]; |
| 76 | |
| 77 | result.setCIImage(WTF::move(image)); |
| 78 | return true; |
| 79 | |
| 80 | END_BLOCK_OBJC_EXCEPTIONS |
| 81 | return false; |
| 82 | } |
| 83 | |
| 84 | } |
| 85 | |
| 86 | #endif // USE(CORE_IMAGE) |