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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;
SK_DECLARE_FLATTENABLE_REGISTRAR_GROUP()
#ifdef SK_SUPPORT_LEGACY_IMAGEFILTER_PTR
static SkImageFilter* CreateDistantLitDiffuse(const SkPoint3& direction,
SkColor lightColor, SkScalar surfaceScale, SkScalar kd,
SkImageFilter* input = NULL, const CropRect* cropRect = NULL) {
return MakeDistantLitDiffuse(direction, lightColor, surfaceScale, kd,
sk_ref_sp<SkImageFilter>(input), cropRect).release();
}
static SkImageFilter* CreatePointLitDiffuse(const SkPoint3& location,
SkColor lightColor, SkScalar surfaceScale, SkScalar kd,
SkImageFilter* input = NULL, const CropRect* cropRect = NULL) {
return MakePointLitDiffuse(location, lightColor, surfaceScale, kd,
sk_ref_sp<SkImageFilter>(input), cropRect).release();
}
static SkImageFilter* CreateSpotLitDiffuse(const SkPoint3& location,
const SkPoint3& target, SkScalar specularExponent, SkScalar cutoffAngle,
SkColor lightColor, SkScalar surfaceScale, SkScalar kd,
SkImageFilter* input = NULL, const CropRect* cropRect = NULL) {
return MakeSpotLitDiffuse(location, target, specularExponent, cutoffAngle,
lightColor, surfaceScale, kd,
sk_ref_sp<SkImageFilter>(input), cropRect).release();
}
static SkImageFilter* CreateDistantLitSpecular(const SkPoint3& direction,
SkColor lightColor, SkScalar surfaceScale, SkScalar ks,
SkScalar shininess, SkImageFilter* input = NULL, const CropRect* cropRect = NULL) {
return MakeDistantLitSpecular(direction, lightColor, surfaceScale, ks, shininess,
sk_ref_sp<SkImageFilter>(input), cropRect).release();
}
static SkImageFilter* CreatePointLitSpecular(const SkPoint3& location,
SkColor lightColor, SkScalar surfaceScale, SkScalar ks,
SkScalar shininess, SkImageFilter* input = NULL, const CropRect* cropRect = NULL) {
return MakePointLitSpecular(location, lightColor, surfaceScale, ks, shininess,
sk_ref_sp<SkImageFilter>(input), cropRect).release();
}
static SkImageFilter* CreateSpotLitSpecular(const SkPoint3& location,
const SkPoint3& target, SkScalar specularExponent, SkScalar cutoffAngle,
SkColor lightColor, SkScalar surfaceScale, SkScalar ks,
SkScalar shininess, SkImageFilter* input = NULL, const CropRect* cropRect = NULL) {
return MakeSpotLitSpecular(location, target, specularExponent, cutoffAngle,
lightColor, surfaceScale, ks, shininess,
sk_ref_sp<SkImageFilter>(input), cropRect).release();
}
#endif
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(); }
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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