src/gpu/effects/GrAlphaThresholdFragmentProcessor.h

/*
 * Copyright 2018 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 GrAlphaThresholdFragmentProcessor.fp; do not modify.
 **************************************************************************************************/
#ifndef GrAlphaThresholdFragmentProcessor_DEFINED
#define GrAlphaThresholdFragmentProcessor_DEFINED
#include "SkTypes.h"
#include "GrFragmentProcessor.h"
#include "GrCoordTransform.h"
class GrAlphaThresholdFragmentProcessor : public GrFragmentProcessor {
public:
    inline OptimizationFlags optFlags(float outerThreshold);
    float innerThreshold() const { return fInnerThreshold; }
    float outerThreshold() const { return fOuterThreshold; }

    static std::unique_ptr<GrFragmentProcessor> Make(sk_sp<GrTextureProxy> mask,
                                                     float innerThreshold,
                                                     float outerThreshold,
                                                     const SkIRect& bounds) {
        return std::unique_ptr<GrFragmentProcessor>(new GrAlphaThresholdFragmentProcessor(
                mask, innerThreshold, outerThreshold, bounds));
    }
    GrAlphaThresholdFragmentProcessor(const GrAlphaThresholdFragmentProcessor& src);
    std::unique_ptr<GrFragmentProcessor> clone() const override;
    const char* name() const override { return "AlphaThresholdFragmentProcessor"; }

private:
    GrAlphaThresholdFragmentProcessor(sk_sp<GrTextureProxy> mask, float innerThreshold,
                                      float outerThreshold, const SkIRect& bounds)
            : INHERITED(kGrAlphaThresholdFragmentProcessor_ClassID, kNone_OptimizationFlags)
            , fMask(std::move(mask))
            , fInnerThreshold(innerThreshold)
            , fOuterThreshold(outerThreshold)
            , fMaskCoordTransform(
                      SkMatrix::MakeTrans(SkIntToScalar(-bounds.x()), SkIntToScalar(-bounds.y())),
                      fMask.proxy()) {
        this->addTextureSampler(&fMask);
        this->addCoordTransform(&fMaskCoordTransform);
    }
    GrGLSLFragmentProcessor* onCreateGLSLInstance() const override;
    void onGetGLSLProcessorKey(const GrShaderCaps&, GrProcessorKeyBuilder*) const override;
    bool onIsEqual(const GrFragmentProcessor&) const override;
    GR_DECLARE_FRAGMENT_PROCESSOR_TEST
    TextureSampler fMask;
    float fInnerThreshold;
    float fOuterThreshold;
    GrCoordTransform fMaskCoordTransform;
    typedef GrFragmentProcessor INHERITED;
};
#endif