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/*
* Copyright 2016 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef Sk4fGradientBase_DEFINED
#define Sk4fGradientBase_DEFINED
#include "SkColor.h"
#include "SkGradientShaderPriv.h"
#include "SkMatrix.h"
#include "SkNx.h"
#include "SkPM4f.h"
#include "SkShader.h"
#include "SkTArray.h"
class SkGradientShaderBase::
GradientShaderBase4fContext : public SkShader::Context {
public:
GradientShaderBase4fContext(const SkGradientShaderBase&,
const ContextRec&);
uint32_t getFlags() const override { return fFlags; }
protected:
struct Interval {
Interval(SkPMColor c0, SkScalar p0,
SkPMColor c1, SkScalar p1,
const Sk4f& componentScale);
Interval(const Sk4f& c0, const Sk4f& dc,
SkScalar p0, SkScalar p1);
bool isZeroRamp() const { return fZeroRamp; }
// true when fx is in [p0,p1)
bool contains(SkScalar fx) const;
SkPM4f fC0, fDc;
SkScalar fP0, fP1;
bool fZeroRamp;
};
SkSTArray<8, Interval, true> fIntervals;
SkMatrix fDstToPos;
SkMatrix::MapXYProc fDstToPosProc;
uint8_t fDstToPosClass;
uint8_t fFlags;
bool fDither;
bool fColorsArePremul;
private:
using INHERITED = SkShader::Context;
};
#endif // Sk4fGradientBase_DEFINED
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