| /* |
| * Copyright 2020 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #include "include/core/SkPath.h" |
| #include "include/core/SkPathTypes.h" |
| #include "include/core/SkPoint.h" |
| #include "src/base/SkRandom.h" |
| #include "src/core/SkPathPriv.h" |
| #include "tests/Test.h" |
| |
| SkPoint next_point(SkRandom& rand) { return {rand.nextF(), rand.nextF()}; } |
| |
| DEF_TEST(SkPath_RangeIter, r) { |
| enum class Verb { |
| kMove = (int)SkPathVerb::kMove, |
| kLine = (int)SkPathVerb::kLine, |
| kQuad = (int)SkPathVerb::kQuad, |
| kConic = (int)SkPathVerb::kConic, |
| kCubic = (int)SkPathVerb::kCubic, |
| kClose = (int)SkPathVerb::kClose, |
| kImplicitMove |
| }; |
| |
| Verb verbs[] = { |
| Verb::kImplicitMove, |
| Verb::kLine, |
| Verb::kConic, |
| Verb::kClose, |
| Verb::kImplicitMove, |
| Verb::kCubic, |
| Verb::kMove, |
| Verb::kConic, |
| Verb::kLine, |
| Verb::kClose, |
| Verb::kMove, |
| Verb::kMove |
| }; |
| |
| class : SkRandom { |
| public: |
| SkPoint p() { return {this->SkRandom::nextF(), this->SkRandom::nextF()}; } |
| float w() { return this->SkRandom::nextF(); } |
| } genData, testData; |
| |
| for (int i = 0; i < 10; ++i) { |
| if (genData.p() != testData.p() || genData.w() != testData.w()) { |
| ERRORF(r, "genData and testData not in sync."); |
| return; |
| } |
| } |
| |
| // Build the path. |
| SkPath path; |
| for (Verb verb : verbs) { |
| switch (verb) { |
| case Verb::kImplicitMove: |
| break; |
| case Verb::kMove: |
| path.moveTo(genData.p()); |
| break; |
| case Verb::kLine: |
| path.lineTo(genData.p()); |
| break; |
| case Verb::kQuad: { |
| auto a = genData.p(); |
| auto b = genData.p(); |
| path.quadTo(a, b); |
| break; |
| } |
| case Verb::kCubic: { |
| auto a = genData.p(); |
| auto b = genData.p(); |
| auto c = genData.p(); |
| path.cubicTo(a, b, c); |
| break; |
| } |
| case Verb::kConic: { |
| auto a = genData.p(); |
| auto b = genData.p(); |
| path.conicTo(a, b, genData.w()); |
| break; |
| } |
| case Verb::kClose: |
| path.close(); |
| break; |
| } |
| } |
| |
| // Verify sure the RangeIter works as expected. |
| SkPathPriv::Iterate iterate(path); |
| auto iter = iterate.begin(); |
| SkPoint startPt = {0,0}; |
| SkPoint lastPt = {0,0}; |
| for (Verb verb : verbs) { |
| auto [pathVerb, pathPts, pathWt] = *iter++; |
| switch (verb) { |
| case Verb::kImplicitMove: |
| REPORTER_ASSERT(r, pathPts[0] == startPt); |
| lastPt = pathPts[0]; |
| break; |
| case Verb::kMove: |
| REPORTER_ASSERT(r, pathPts[0] == testData.p()); |
| startPt = lastPt = pathPts[0]; |
| break; |
| case Verb::kLine: |
| REPORTER_ASSERT(r, pathPts[0] == lastPt); |
| REPORTER_ASSERT(r, pathPts[1] == testData.p()); |
| lastPt = pathPts[1]; |
| break; |
| case Verb::kQuad: |
| REPORTER_ASSERT(r, pathPts[0] == lastPt); |
| REPORTER_ASSERT(r, pathPts[1] == testData.p()); |
| REPORTER_ASSERT(r, pathPts[2] == testData.p()); |
| lastPt = pathPts[2]; |
| break; |
| case Verb::kCubic: |
| REPORTER_ASSERT(r, pathPts[0] == lastPt); |
| REPORTER_ASSERT(r, pathPts[1] == testData.p()); |
| REPORTER_ASSERT(r, pathPts[2] == testData.p()); |
| REPORTER_ASSERT(r, pathPts[3] == testData.p()); |
| lastPt = pathPts[3]; |
| break; |
| case Verb::kConic: |
| REPORTER_ASSERT(r, pathPts[0] == lastPt); |
| REPORTER_ASSERT(r, pathPts[1] == testData.p()); |
| REPORTER_ASSERT(r, pathPts[2] == testData.p()); |
| REPORTER_ASSERT(r, *pathWt == testData.w()); |
| lastPt = pathPts[2]; |
| break; |
| case Verb::kClose: |
| REPORTER_ASSERT(r, pathPts[0] == lastPt); |
| break; |
| } |
| } |
| REPORTER_ASSERT(r, iter == iterate.end()); |
| } |