src/gpu/effects/generated/GrCircleEffect.h

/*
 * Copyright 2017 Google Inc.
 *
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file.
 */

/**************************************************************************************************
 *** This file was autogenerated from GrCircleEffect.fp; do not modify.
 **************************************************************************************************/
#ifndef GrCircleEffect_DEFINED
#define GrCircleEffect_DEFINED

#include "include/core/SkM44.h"
#include "include/core/SkTypes.h"

#include "src/gpu/GrFragmentProcessor.h"

class GrCircleEffect : public GrFragmentProcessor {
public:
    static GrFPResult Make(std::unique_ptr<GrFragmentProcessor> inputFP,
                           GrClipEdgeType edgeType,
                           SkPoint center,
                           float radius) {
        // A radius below half causes the implicit insetting done by this processor to become
        // inverted. We could handle this case by making the processor code more complicated.
        if (radius < .5f && GrProcessorEdgeTypeIsInverseFill(edgeType)) {
            return GrFPFailure(std::move(inputFP));
        }
        return GrFPSuccess(std::unique_ptr<GrFragmentProcessor>(
                new GrCircleEffect(std::move(inputFP), edgeType, center, radius)));
    }
    GrCircleEffect(const GrCircleEffect& src);
    std::unique_ptr<GrFragmentProcessor> clone() const override;
    const char* name() const override { return "CircleEffect"; }
    GrClipEdgeType edgeType;
    SkPoint center;
    float radius;

private:
    GrCircleEffect(std::unique_ptr<GrFragmentProcessor> inputFP,
                   GrClipEdgeType edgeType,
                   SkPoint center,
                   float radius)
            : INHERITED(kGrCircleEffect_ClassID,
                        (OptimizationFlags)(inputFP ? ProcessorOptimizationFlags(inputFP.get())
                                                    : kAll_OptimizationFlags) &
                                kCompatibleWithCoverageAsAlpha_OptimizationFlag)
            , edgeType(edgeType)
            , center(center)
            , radius(radius) {
        this->registerChild(std::move(inputFP), SkSL::SampleUsage::PassThrough());
    }
    GrGLSLFragmentProcessor* onCreateGLSLInstance() const override;
    void onGetGLSLProcessorKey(const GrShaderCaps&, GrProcessorKeyBuilder*) const override;
    bool onIsEqual(const GrFragmentProcessor&) const override;
    GR_DECLARE_FRAGMENT_PROCESSOR_TEST
    typedef GrFragmentProcessor INHERITED;
};
#endif