1 /* 2 * Copyright 2012 The Android Open Source Project 3 * 4 * Use of this source code is governed by a BSD-style license that can be 5 * found in the LICENSE file. 6 */ 7 8 #ifndef SkLightingImageFilter_DEFINED 9 #define SkLightingImageFilter_DEFINED 10 11 #include "SkImageFilter.h" 12 #include "SkColor.h" 13 14 15 class SkImageFilterLight; 16 struct SkPoint3; 17 18 class SK_API SkLightingImageFilter : public SkImageFilter { 19 public: 20 static sk_sp<SkImageFilter> MakeDistantLitDiffuse(const SkPoint3& direction, 21 SkColor lightColor, SkScalar surfaceScale, SkScalar kd, 22 sk_sp<SkImageFilter> input, const CropRect* cropRect = nullptr); 23 static sk_sp<SkImageFilter> MakePointLitDiffuse(const SkPoint3& location, 24 SkColor lightColor, SkScalar surfaceScale, SkScalar kd, 25 sk_sp<SkImageFilter> input, const CropRect* cropRect = nullptr); 26 static sk_sp<SkImageFilter> MakeSpotLitDiffuse(const SkPoint3& location, 27 const SkPoint3& target, SkScalar specularExponent, SkScalar cutoffAngle, 28 SkColor lightColor, SkScalar surfaceScale, SkScalar kd, 29 sk_sp<SkImageFilter> input, const CropRect* cropRect = nullptr); 30 static sk_sp<SkImageFilter> MakeDistantLitSpecular(const SkPoint3& direction, 31 SkColor lightColor, SkScalar surfaceScale, SkScalar ks, 32 SkScalar shininess, sk_sp<SkImageFilter> input, const CropRect* cropRect = nullptr); 33 static sk_sp<SkImageFilter> MakePointLitSpecular(const SkPoint3& location, 34 SkColor lightColor, SkScalar surfaceScale, SkScalar ks, 35 SkScalar shininess, sk_sp<SkImageFilter> input, const CropRect* cropRect = nullptr); 36 static sk_sp<SkImageFilter> MakeSpotLitSpecular(const SkPoint3& location, 37 const SkPoint3& target, SkScalar specularExponent, SkScalar cutoffAngle, 38 SkColor lightColor, SkScalar surfaceScale, SkScalar ks, 39 SkScalar shininess, sk_sp<SkImageFilter> input, const CropRect* cropRect = nullptr); 40 ~SkLightingImageFilter() override; 41 42 static void RegisterFlattenables(); 43 44 protected: 45 SkLightingImageFilter(sk_sp<SkImageFilterLight> light, 46 SkScalar surfaceScale, 47 sk_sp<SkImageFilter> input, 48 const CropRect* cropRect); 49 void flatten(SkWriteBuffer&) const override; 50 const SkImageFilterLight* light() const { return fLight.get(); } 51 inline sk_sp<const SkImageFilterLight> refLight() const; 52 SkScalar surfaceScale() const { return fSurfaceScale; } 53 bool affectsTransparentBlack() const override { return true; } 54 55 private: 56 sk_sp<SkImageFilterLight> fLight; 57 SkScalar fSurfaceScale; 58 59 typedef SkImageFilter INHERITED; 60 }; 61 62 #endif 63
