1 /*
2 * Copyright 2021 Google Inc.
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 #include "modules/svg/include/SkSVGAttributeParser.h"
9 #include "modules/svg/include/SkSVGFeLightSource.h"
10 #include "modules/svg/include/SkSVGValue.h"
11
computeDirection() const12 SkPoint3 SkSVGFeDistantLight::computeDirection() const {
13 // Computing direction from azimuth+elevation is two 3D rotations:
14 // - Rotate [1,0,0] about y axis first (elevation)
15 // - Rotate result about z axis (azimuth)
16 // Which is just the first column vector in the 3x3 matrix Rz*Ry.
17 const float azimuthRad = SkDegreesToRadians(fAzimuth);
18 const float elevationRad = SkDegreesToRadians(fElevation);
19 const float sinAzimuth = sinf(azimuthRad), cosAzimuth = cosf(azimuthRad);
20 const float sinElevation = sinf(elevationRad), cosElevation = cosf(elevationRad);
21 return SkPoint3::Make(cosAzimuth * cosElevation, sinAzimuth * cosElevation, sinElevation);
22 }
23
parseAndSetAttribute(const char * n,const char * v)24 bool SkSVGFeDistantLight::parseAndSetAttribute(const char* n, const char* v) {
25 return INHERITED::parseAndSetAttribute(n, v) ||
26 this->setAzimuth(SkSVGAttributeParser::parse<SkSVGNumberType>("azimuth", n, v)) ||
27 this->setElevation(SkSVGAttributeParser::parse<SkSVGNumberType>("elevation", n, v));
28 }
29
parseAndSetAttribute(const char * n,const char * v)30 bool SkSVGFePointLight::parseAndSetAttribute(const char* n, const char* v) {
31 return INHERITED::parseAndSetAttribute(n, v) ||
32 this->setX(SkSVGAttributeParser::parse<SkSVGNumberType>("x", n, v)) ||
33 this->setY(SkSVGAttributeParser::parse<SkSVGNumberType>("y", n, v)) ||
34 this->setZ(SkSVGAttributeParser::parse<SkSVGNumberType>("z", n, v));
35 }
36
parseAndSetAttribute(const char * n,const char * v)37 bool SkSVGFeSpotLight::parseAndSetAttribute(const char* n, const char* v) {
38 return INHERITED::parseAndSetAttribute(n, v) ||
39 this->setX(SkSVGAttributeParser::parse<SkSVGNumberType>("x", n, v)) ||
40 this->setY(SkSVGAttributeParser::parse<SkSVGNumberType>("y", n, v)) ||
41 this->setZ(SkSVGAttributeParser::parse<SkSVGNumberType>("z", n, v)) ||
42 this->setPointsAtX(SkSVGAttributeParser::parse<SkSVGNumberType>("pointsAtX", n, v)) ||
43 this->setPointsAtY(SkSVGAttributeParser::parse<SkSVGNumberType>("pointsAtY", n, v)) ||
44 this->setPointsAtZ(SkSVGAttributeParser::parse<SkSVGNumberType>("pointsAtZ", n, v)) ||
45 this->setSpecularExponent(
46 SkSVGAttributeParser::parse<SkSVGNumberType>("specularExponent", n, v)) ||
47 this->setLimitingConeAngle(
48 SkSVGAttributeParser::parse<SkSVGNumberType>("limitingConeAngle", n, v));
49 }
50