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/*
* Copyright 2012 The Android Open Source Project
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef SkLightingImageFilter_DEFINED
#define SkLightingImageFilter_DEFINED
#include "SkImageFilter.h"
#include "SkColor.h"
class SkImageFilterLight;
struct SkPoint3;
class SK_API SkLightingImageFilter : public SkImageFilter {
public:
static sk_sp<SkImageFilter> MakeDistantLitDiffuse(const SkPoint3& direction,
SkColor lightColor, SkScalar surfaceScale, SkScalar kd,
sk_sp<SkImageFilter> input, const CropRect* cropRect = nullptr);
static sk_sp<SkImageFilter> MakePointLitDiffuse(const SkPoint3& location,
SkColor lightColor, SkScalar surfaceScale, SkScalar kd,
sk_sp<SkImageFilter> input, const CropRect* cropRect = nullptr);
static sk_sp<SkImageFilter> MakeSpotLitDiffuse(const SkPoint3& location,
const SkPoint3& target, SkScalar specularExponent, SkScalar cutoffAngle,
SkColor lightColor, SkScalar surfaceScale, SkScalar kd,
sk_sp<SkImageFilter> input, const CropRect* cropRect = nullptr);
static sk_sp<SkImageFilter> MakeDistantLitSpecular(const SkPoint3& direction,
SkColor lightColor, SkScalar surfaceScale, SkScalar ks,
SkScalar shininess, sk_sp<SkImageFilter> input, const CropRect* cropRect = nullptr);
static sk_sp<SkImageFilter> MakePointLitSpecular(const SkPoint3& location,
SkColor lightColor, SkScalar surfaceScale, SkScalar ks,
SkScalar shininess, sk_sp<SkImageFilter> input, const CropRect* cropRect = nullptr);
static sk_sp<SkImageFilter> MakeSpotLitSpecular(const SkPoint3& location,
const SkPoint3& target, SkScalar specularExponent, SkScalar cutoffAngle,
SkColor lightColor, SkScalar surfaceScale, SkScalar ks,
SkScalar shininess, sk_sp<SkImageFilter> input, const CropRect* cropRect = nullptr);
~SkLightingImageFilter() override;
static void InitializeFlattenables();
protected:
SkLightingImageFilter(sk_sp<SkImageFilterLight> light,
SkScalar surfaceScale,
sk_sp<SkImageFilter> input,
const CropRect* cropRect);
void flatten(SkWriteBuffer&) const override;
const SkImageFilterLight* light() const { return fLight.get(); }
inline sk_sp<const SkImageFilterLight> refLight() const;
SkScalar surfaceScale() const { return fSurfaceScale; }
bool affectsTransparentBlack() const override { return true; }
private:
sk_sp<SkImageFilterLight> fLight;
SkScalar fSurfaceScale;
typedef SkImageFilter INHERITED;
};
#endif
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