diff options
Diffstat (limited to 'src/utils/SkShadowTessellator.cpp')
| -rwxr-xr-x | src/utils/SkShadowTessellator.cpp | 38 |
1 files changed, 15 insertions, 23 deletions
diff --git a/src/utils/SkShadowTessellator.cpp b/src/utils/SkShadowTessellator.cpp index 36df514534..32a114253a 100755 --- a/src/utils/SkShadowTessellator.cpp +++ b/src/utils/SkShadowTessellator.cpp @@ -327,8 +327,7 @@ bool SkBaseShadowTessellator::setTransformedHeightFunc(const SkMatrix& ctm) { class SkAmbientShadowTessellator : public SkBaseShadowTessellator { public: SkAmbientShadowTessellator(const SkPath& path, const SkMatrix& ctm, - SkShadowTessellator::HeightFunc heightFunc, - SkScalar ambientAlpha, bool transparent); + SkShadowTessellator::HeightFunc heightFunc, bool transparent); private: void handleLine(const SkPoint& p) override; @@ -343,10 +342,9 @@ private: } SkColor umbraColor(SkScalar z) { SkScalar umbraAlpha = SkScalarInvert((1.0f + SkTMax(z*kHeightFactor, 0.0f))); - return SkColorSetARGB(255, 0, fAmbientAlpha * 255.9999f, umbraAlpha * 255.9999f); + return SkColorSetARGB(umbraAlpha * 255.9999f, 0, 0, 0); } - SkScalar fAmbientAlpha; int fCentroidCount; typedef SkBaseShadowTessellator INHERITED; @@ -355,10 +353,8 @@ private: SkAmbientShadowTessellator::SkAmbientShadowTessellator(const SkPath& path, const SkMatrix& ctm, SkShadowTessellator::HeightFunc heightFunc, - SkScalar ambientAlpha, bool transparent) - : INHERITED(heightFunc, transparent) - , fAmbientAlpha(ambientAlpha) { + : INHERITED(heightFunc, transparent) { // Set base colors SkScalar occluderHeight = heightFunc(0, 0); SkScalar umbraAlpha = SkScalarInvert((1.0f + SkTMax(occluderHeight*kHeightFactor, 0.0f))); @@ -366,8 +362,8 @@ SkAmbientShadowTessellator::SkAmbientShadowTessellator(const SkPath& path, // umbraAlpha is the factor that is linearly interpolated from outside to inside, and // then "blurred" by the GrBlurredEdgeFP. It is then multiplied by fAmbientAlpha to get // the final alpha. - fUmbraColor = SkColorSetARGB(255, 0, ambientAlpha * 255.9999f, umbraAlpha * 255.9999f); - fPenumbraColor = SkColorSetARGB(255, 0, ambientAlpha * 255.9999f, 0); + fUmbraColor = SkColorSetARGB(umbraAlpha * 255.9999f, 0, 0, 0); + fPenumbraColor = SkColorSetARGB(0, 0, 0, 0); // make sure we're not below the canvas plane this->setZOffset(path.getBounds(), ctm.hasPerspective()); @@ -654,9 +650,8 @@ void SkAmbientShadowTessellator::addEdge(const SkPoint& nextPoint, const SkVecto class SkSpotShadowTessellator : public SkBaseShadowTessellator { public: SkSpotShadowTessellator(const SkPath& path, const SkMatrix& ctm, - SkShadowTessellator::HeightFunc heightFunc, - const SkPoint3& lightPos, SkScalar lightRadius, - SkScalar spotAlpha, bool transparent); + SkShadowTessellator::HeightFunc heightFunc, const SkPoint3& lightPos, + SkScalar lightRadius, bool transparent); private: void computeClipAndPathPolygons(const SkPath& path, const SkMatrix& ctm, @@ -700,7 +695,7 @@ private: SkSpotShadowTessellator::SkSpotShadowTessellator(const SkPath& path, const SkMatrix& ctm, SkShadowTessellator::HeightFunc heightFunc, const SkPoint3& lightPos, SkScalar lightRadius, - SkScalar spotAlpha, bool transparent) + bool transparent) : INHERITED(heightFunc, transparent) , fLightZ(lightPos.fZ) , fLightRadius(lightRadius) @@ -723,8 +718,8 @@ SkSpotShadowTessellator::SkSpotShadowTessellator(const SkPath& path, const SkMat float zRatio = SkTPin(occluderHeight / (fLightZ - occluderHeight), 0.0f, 0.95f); SkScalar radius = lightRadius * zRatio; fRadius = radius; - fUmbraColor = SkColorSetARGB(255, 0, spotAlpha * 255.9999f, 255); - fPenumbraColor = SkColorSetARGB(255, 0, spotAlpha * 255.9999f, 0); + fUmbraColor = SkColorSetARGB(255, 0, 0, 0); + fPenumbraColor = SkColorSetARGB(0, 0, 0, 0); // Compute the scale and translation for the spot shadow. SkMatrix shadowTransform; @@ -1292,17 +1287,14 @@ void SkSpotShadowTessellator::addEdge(const SkPoint& nextPoint, const SkVector& /////////////////////////////////////////////////////////////////////////////////////////////////// sk_sp<SkVertices> SkShadowTessellator::MakeAmbient(const SkPath& path, const SkMatrix& ctm, - HeightFunc heightFunc, SkScalar ambientAlpha, - bool transparent) { - SkAmbientShadowTessellator ambientTess(path, ctm, heightFunc, ambientAlpha, transparent); + HeightFunc heightFunc, bool transparent) { + SkAmbientShadowTessellator ambientTess(path, ctm, heightFunc, transparent); return ambientTess.releaseVertices(); } sk_sp<SkVertices> SkShadowTessellator::MakeSpot(const SkPath& path, const SkMatrix& ctm, - HeightFunc heightFunc, - const SkPoint3& lightPos, SkScalar lightRadius, - SkScalar spotAlpha, bool transparent) { - SkSpotShadowTessellator spotTess(path, ctm, heightFunc, lightPos, lightRadius, - spotAlpha, transparent); + HeightFunc heightFunc, const SkPoint3& lightPos, + SkScalar lightRadius, bool transparent) { + SkSpotShadowTessellator spotTess(path, ctm, heightFunc, lightPos, lightRadius, transparent); return spotTess.releaseVertices(); } |