| /* |
| * Copyright 2012 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| #include "src/pathops/SkPathOpsRect.h" |
| |
| #include "src/pathops/SkPathOpsConic.h" |
| #include "src/pathops/SkPathOpsCubic.h" |
| #include "src/pathops/SkPathOpsQuad.h" |
| #include "src/pathops/SkPathOpsTCurve.h" |
| |
| void SkDRect::setBounds(const SkDQuad& curve, const SkDQuad& sub, double startT, double endT) { |
| set(sub[0]); |
| add(sub[2]); |
| double tValues[2]; |
| int roots = 0; |
| if (!sub.monotonicInX()) { |
| roots = SkDQuad::FindExtrema(&sub[0].fX, tValues); |
| } |
| if (!sub.monotonicInY()) { |
| roots += SkDQuad::FindExtrema(&sub[0].fY, &tValues[roots]); |
| } |
| for (int index = 0; index < roots; ++index) { |
| double t = startT + (endT - startT) * tValues[index]; |
| add(curve.ptAtT(t)); |
| } |
| } |
| |
| void SkDRect::setBounds(const SkDConic& curve, const SkDConic& sub, double startT, double endT) { |
| set(sub[0]); |
| add(sub[2]); |
| double tValues[2]; |
| int roots = 0; |
| if (!sub.monotonicInX()) { |
| roots = SkDConic::FindExtrema(&sub[0].fX, sub.fWeight, tValues); |
| } |
| if (!sub.monotonicInY()) { |
| roots += SkDConic::FindExtrema(&sub[0].fY, sub.fWeight, &tValues[roots]); |
| } |
| for (int index = 0; index < roots; ++index) { |
| double t = startT + (endT - startT) * tValues[index]; |
| add(curve.ptAtT(t)); |
| } |
| } |
| |
| void SkDRect::setBounds(const SkDCubic& curve, const SkDCubic& sub, double startT, double endT) { |
| set(sub[0]); |
| add(sub[3]); |
| double tValues[4]; |
| int roots = 0; |
| if (!sub.monotonicInX()) { |
| roots = SkDCubic::FindExtrema(&sub[0].fX, tValues); |
| } |
| if (!sub.monotonicInY()) { |
| roots += SkDCubic::FindExtrema(&sub[0].fY, &tValues[roots]); |
| } |
| for (int index = 0; index < roots; ++index) { |
| double t = startT + (endT - startT) * tValues[index]; |
| add(curve.ptAtT(t)); |
| } |
| } |
| |
| void SkDRect::setBounds(const SkTCurve& curve) { |
| curve.setBounds(this); |
| } |