#pragma once
#include "FEConvolveMatrix.h"
#include "Filter.h"
#include "FilterEffect.h"
namespace WebCore {
class FEGaussianBlur : public FilterEffect {
public:
static Ref<FEGaussianBlur> create(Filter&, float, float, EdgeModeType);
float stdDeviationX() const { return m_stdX; }
void setStdDeviationX(float);
float stdDeviationY() const { return m_stdY; }
void setStdDeviationY(float);
EdgeModeType edgeMode() const { return m_edgeMode; }
void setEdgeMode(EdgeModeType);
static IntSize calculateKernelSize(const Filter&, FloatSize stdDeviation);
static IntSize calculateUnscaledKernelSize(FloatSize stdDeviation);
static IntSize calculateOutsetSize(FloatSize stdDeviation);
private:
FEGaussianBlur(Filter&, float, float, EdgeModeType);
const char* filterName() const final { return "FEGaussianBlur"; }
static const int s_minimalRectDimension = 100 * 100;
template<typename Type>
friend class ParallelJobs;
struct PlatformApplyParameters {
FEGaussianBlur* filter;
RefPtr<Uint8ClampedArray> ioPixelArray;
RefPtr<Uint8ClampedArray> tmpPixelArray;
int width;
int height;
unsigned kernelSizeX;
unsigned kernelSizeY;
};
void platformApplySoftware() override;
void determineAbsolutePaintRect() override;
IntOutsets outsets() const override;
WTF::TextStream& externalRepresentation(WTF::TextStream&, RepresentationType) const override;
static void platformApplyWorker(PlatformApplyParameters*);
void platformApply(Uint8ClampedArray& ioBuffer, Uint8ClampedArray& tempBuffer, unsigned kernelSizeX, unsigned kernelSizeY, IntSize& paintSize);
void platformApplyGeneric(Uint8ClampedArray& ioBuffer, Uint8ClampedArray& tempBuffer, unsigned kernelSizeX, unsigned kernelSizeY, IntSize& paintSize);
float m_stdX;
float m_stdY;
EdgeModeType m_edgeMode;
};
}