From 31608c02c2533810587f5807c0c34f8ac19290b9 Mon Sep 17 00:00:00 2001 From: Cary Clark Date: Thu, 12 Apr 2018 10:29:46 -0400 Subject: another rect is path fix This addresses comment #17 of skbug.com/7792. The bug overshoots the end and exploits that the first point tracked by close isn't the first point in the rectangle. Fixing this slightly regresses the example in comment #14; before it was treated as a filled rect but now it is not; this conservative approach doesn't cause any other regressions. bug7792 in pathfill.cpp verifies that all paths in the bug draw correctly by comparing CPU and GPU. R=robertphillips@google.com Bug: 824145,skia:7792 Change-Id: I55bea023d2ad7456c8c3ebd9d1df95fe34e0a0d4 Reviewed-on: https://skia-review.googlesource.com/120996 Commit-Queue: Cary Clark Reviewed-by: Robert Phillips --- gm/pathfill.cpp | 13 ++++++++++++- src/core/SkPath.cpp | 2 +- tests/PathTest.cpp | 11 ++++++++--- 3 files changed, 21 insertions(+), 5 deletions(-) diff --git a/gm/pathfill.cpp b/gm/pathfill.cpp index ff9f0083a2..18b30c9b0b 100644 --- a/gm/pathfill.cpp +++ b/gm/pathfill.cpp @@ -433,7 +433,7 @@ DEF_SIMPLE_GM(rotatedcubicpath, canvas, 200, 200) { DEF_GM( return new PathFillGM; ) DEF_GM( return new PathInverseFillGM; ) -DEF_SIMPLE_GM(bug7792, canvas, 600, 400) { +DEF_SIMPLE_GM(bug7792, canvas, 600, 600) { // from skbug.com/7792 bug description SkPaint p; SkPath path; @@ -498,4 +498,15 @@ DEF_SIMPLE_GM(bug7792, canvas, 600, 400) { path.lineTo(75, 150); path.moveTo(250, 75); canvas->drawPath(path, p); + // from skbug.com/7792 comment 17 + canvas->translate(-200 * 2, 200); + path.reset(); + path.moveTo(75, 10); + path.moveTo(75, 75); + path.lineTo(150, 75); + path.lineTo(150, 150); + path.lineTo(75, 150); + path.lineTo(75, 10); + path.close(); + canvas->drawPath(path, p); } diff --git a/src/core/SkPath.cpp b/src/core/SkPath.cpp index 9e242376c0..942b95da4d 100644 --- a/src/core/SkPath.cpp +++ b/src/core/SkPath.cpp @@ -467,7 +467,7 @@ bool SkPath::isRectContour(bool allowPartial, int* currVerb, const SkPoint** pts switch (verb) { case kClose_Verb: savePts = pts; - pts = *ptsPtr; + pts = firstPt; autoClose = true; insertClose = false; accumulatingRect = false; diff --git a/tests/PathTest.cpp b/tests/PathTest.cpp index ae6568f411..4d250283cf 100644 --- a/tests/PathTest.cpp +++ b/tests/PathTest.cpp @@ -4906,6 +4906,9 @@ DEF_TEST(Path_isRect, reporter) { for (size_t index = 0; index < count; ++index) { index < 2 ? path.moveTo(points[index]) : path.lineTo(points[index]); } + if (close) { + path.close(); + } return path; }; auto makePath2 = [](const SkPoint* points, const SkPath::Verb* verbs, size_t count) -> SkPath { @@ -4961,9 +4964,7 @@ DEF_TEST(Path_isRect, reporter) { SkPoint points14[] = { {250, 75}, {250, 75}, {250, 75}, {100, 75}, {150, 75}, {150, 150}, {75, 150}, {75, 75}, {0, 0} }; path = makePath2(points14, verbs14, SK_ARRAY_COUNT(verbs14)); - REPORTER_ASSERT(reporter, path.isRect(&rect, nullptr, nullptr)); - compare.set(&points14[3], 5); - REPORTER_ASSERT(reporter, rect == compare); + REPORTER_ASSERT(reporter, !path.isRect(&rect, nullptr, nullptr)); // isolated from skbug.com/7792 comment 15 SkPath::Verb verbs15[] = { SkPath::kMove_Verb, SkPath::kLine_Verb, SkPath::kLine_Verb, SkPath::kLine_Verb, SkPath::kMove_Verb }; @@ -4972,4 +4973,8 @@ DEF_TEST(Path_isRect, reporter) { REPORTER_ASSERT(reporter, path.isRect(&rect, nullptr, nullptr)); compare.set(&points15[0], SK_ARRAY_COUNT(points15) - 1); REPORTER_ASSERT(reporter, rect == compare); + // isolated from skbug.com/7792 comment 17 + SkPoint points17[] = { {75, 10}, {75, 75}, {150, 75}, {150, 150}, {75, 150}, {75, 10} }; + path = makePath(points17, SK_ARRAY_COUNT(points17), true); + REPORTER_ASSERT(reporter, !path.isRect(&rect, nullptr, nullptr)); } -- cgit v1.2.3