| /* |
| * Copyright 2011 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/SkCanvas.h" |
| #include "include/core/SkClipOp.h" |
| #include "include/core/SkImageInfo.h" |
| #include "include/core/SkMatrix.h" |
| #include "include/core/SkPath.h" |
| #include "include/core/SkPoint.h" |
| #include "include/core/SkRRect.h" |
| #include "include/core/SkRect.h" |
| #include "include/core/SkRefCnt.h" |
| #include "include/core/SkRegion.h" |
| #include "include/core/SkScalar.h" |
| #include "include/core/SkSize.h" |
| #include "include/core/SkString.h" |
| #include "include/core/SkSurface.h" |
| #include "include/core/SkTypes.h" |
| #include "include/effects/SkGradientShader.h" |
| #include "include/private/SkTemplates.h" |
| #include "include/utils/SkRandom.h" |
| #include "src/core/SkClipStack.h" |
| #include "tests/Test.h" |
| |
| #include <cstring> |
| #include <initializer_list> |
| #include <new> |
| |
| static void test_assign_and_comparison(skiatest::Reporter* reporter) { |
| SkClipStack s; |
| bool doAA = false; |
| |
| REPORTER_ASSERT(reporter, 0 == s.getSaveCount()); |
| |
| // Build up a clip stack with a path, an empty clip, and a rect. |
| s.save(); |
| REPORTER_ASSERT(reporter, 1 == s.getSaveCount()); |
| |
| SkPath p; |
| p.moveTo(5, 6); |
| p.lineTo(7, 8); |
| p.lineTo(5, 9); |
| p.close(); |
| s.clipPath(p, SkMatrix::I(), SkClipOp::kIntersect, doAA); |
| |
| s.save(); |
| REPORTER_ASSERT(reporter, 2 == s.getSaveCount()); |
| |
| SkRect r = SkRect::MakeLTRB(1, 2, 103, 104); |
| s.clipRect(r, SkMatrix::I(), SkClipOp::kIntersect, doAA); |
| r = SkRect::MakeLTRB(4, 5, 56, 57); |
| s.clipRect(r, SkMatrix::I(), SkClipOp::kIntersect, doAA); |
| |
| s.save(); |
| REPORTER_ASSERT(reporter, 3 == s.getSaveCount()); |
| |
| r = SkRect::MakeLTRB(14, 15, 16, 17); |
| s.clipRect(r, SkMatrix::I(), SkClipOp::kDifference, doAA); |
| |
| // Test that assignment works. |
| SkClipStack copy = s; |
| REPORTER_ASSERT(reporter, s == copy); |
| |
| // Test that different save levels triggers not equal. |
| s.restore(); |
| REPORTER_ASSERT(reporter, 2 == s.getSaveCount()); |
| REPORTER_ASSERT(reporter, s != copy); |
| |
| // Test that an equal, but not copied version is equal. |
| s.save(); |
| REPORTER_ASSERT(reporter, 3 == s.getSaveCount()); |
| r = SkRect::MakeLTRB(14, 15, 16, 17); |
| s.clipRect(r, SkMatrix::I(), SkClipOp::kDifference, doAA); |
| REPORTER_ASSERT(reporter, s == copy); |
| |
| // Test that a different op on one level triggers not equal. |
| s.restore(); |
| REPORTER_ASSERT(reporter, 2 == s.getSaveCount()); |
| s.save(); |
| REPORTER_ASSERT(reporter, 3 == s.getSaveCount()); |
| r = SkRect::MakeLTRB(14, 15, 16, 17); |
| s.clipRect(r, SkMatrix::I(), SkClipOp::kIntersect, doAA); |
| REPORTER_ASSERT(reporter, s != copy); |
| |
| // Test that version constructed with rect-path rather than a rect is still considered equal. |
| s.restore(); |
| s.save(); |
| SkPath rp; |
| rp.addRect(r); |
| s.clipPath(rp, SkMatrix::I(), SkClipOp::kDifference, doAA); |
| REPORTER_ASSERT(reporter, s == copy); |
| |
| // Test that different rects triggers not equal. |
| s.restore(); |
| REPORTER_ASSERT(reporter, 2 == s.getSaveCount()); |
| s.save(); |
| REPORTER_ASSERT(reporter, 3 == s.getSaveCount()); |
| |
| r = SkRect::MakeLTRB(24, 25, 26, 27); |
| s.clipRect(r, SkMatrix::I(), SkClipOp::kDifference, doAA); |
| REPORTER_ASSERT(reporter, s != copy); |
| |
| s.restore(); |
| REPORTER_ASSERT(reporter, 2 == s.getSaveCount()); |
| |
| copy.restore(); |
| REPORTER_ASSERT(reporter, 2 == copy.getSaveCount()); |
| REPORTER_ASSERT(reporter, s == copy); |
| s.restore(); |
| REPORTER_ASSERT(reporter, 1 == s.getSaveCount()); |
| copy.restore(); |
| REPORTER_ASSERT(reporter, 1 == copy.getSaveCount()); |
| REPORTER_ASSERT(reporter, s == copy); |
| |
| // Test that different paths triggers not equal. |
| s.restore(); |
| REPORTER_ASSERT(reporter, 0 == s.getSaveCount()); |
| s.save(); |
| REPORTER_ASSERT(reporter, 1 == s.getSaveCount()); |
| |
| p.addRect(r); |
| s.clipPath(p, SkMatrix::I(), SkClipOp::kIntersect, doAA); |
| REPORTER_ASSERT(reporter, s != copy); |
| } |
| |
| static void assert_count(skiatest::Reporter* reporter, const SkClipStack& stack, |
| int count) { |
| SkClipStack::B2TIter iter(stack); |
| int counter = 0; |
| while (iter.next()) { |
| counter += 1; |
| } |
| REPORTER_ASSERT(reporter, count == counter); |
| } |
| |
| // Exercise the SkClipStack's bottom to top and bidirectional iterators |
| // (including the skipToTopmost functionality) |
| static void test_iterators(skiatest::Reporter* reporter) { |
| SkClipStack stack; |
| |
| static const SkRect gRects[] = { |
| { 0, 0, 40, 40 }, |
| { 60, 0, 100, 40 }, |
| { 0, 60, 40, 100 }, |
| { 60, 60, 100, 100 } |
| }; |
| |
| for (size_t i = 0; i < SK_ARRAY_COUNT(gRects); i++) { |
| // the difference op will prevent these from being fused together |
| stack.clipRect(gRects[i], SkMatrix::I(), SkClipOp::kDifference, false); |
| } |
| |
| assert_count(reporter, stack, 4); |
| |
| // bottom to top iteration |
| { |
| const SkClipStack::Element* element = nullptr; |
| |
| SkClipStack::B2TIter iter(stack); |
| int i; |
| |
| for (i = 0, element = iter.next(); element; ++i, element = iter.next()) { |
| REPORTER_ASSERT(reporter, SkClipStack::Element::DeviceSpaceType::kRect == |
| element->getDeviceSpaceType()); |
| REPORTER_ASSERT(reporter, element->getDeviceSpaceRect() == gRects[i]); |
| } |
| |
| SkASSERT(i == 4); |
| } |
| |
| // top to bottom iteration |
| { |
| const SkClipStack::Element* element = nullptr; |
| |
| SkClipStack::Iter iter(stack, SkClipStack::Iter::kTop_IterStart); |
| int i; |
| |
| for (i = 3, element = iter.prev(); element; --i, element = iter.prev()) { |
| REPORTER_ASSERT(reporter, SkClipStack::Element::DeviceSpaceType::kRect == |
| element->getDeviceSpaceType()); |
| REPORTER_ASSERT(reporter, element->getDeviceSpaceRect() == gRects[i]); |
| } |
| |
| SkASSERT(i == -1); |
| } |
| |
| // skipToTopmost |
| { |
| const SkClipStack::Element* element = nullptr; |
| |
| SkClipStack::Iter iter(stack, SkClipStack::Iter::kBottom_IterStart); |
| |
| element = iter.skipToTopmost(SkClipOp::kDifference); |
| REPORTER_ASSERT(reporter, SkClipStack::Element::DeviceSpaceType::kRect == |
| element->getDeviceSpaceType()); |
| REPORTER_ASSERT(reporter, element->getDeviceSpaceRect() == gRects[3]); |
| } |
| } |
| |
| // Exercise the SkClipStack's getConservativeBounds computation |
| static void test_bounds(skiatest::Reporter* reporter, |
| SkClipStack::Element::DeviceSpaceType primType) { |
| static const int gNumCases = 8; |
| static const SkRect gAnswerRectsBW[gNumCases] = { |
| // A op B |
| { 40, 40, 50, 50 }, |
| { 10, 10, 50, 50 }, |
| |
| // invA op B |
| { 40, 40, 80, 80 }, |
| { 0, 0, 100, 100 }, |
| |
| // A op invB |
| { 10, 10, 50, 50 }, |
| { 40, 40, 50, 50 }, |
| |
| // invA op invB |
| { 0, 0, 100, 100 }, |
| { 40, 40, 80, 80 }, |
| }; |
| |
| static const SkClipOp gOps[] = { |
| SkClipOp::kIntersect, |
| SkClipOp::kDifference |
| }; |
| |
| SkRect rectA, rectB; |
| |
| rectA.setLTRB(10, 10, 50, 50); |
| rectB.setLTRB(40, 40, 80, 80); |
| |
| SkRRect rrectA, rrectB; |
| rrectA.setOval(rectA); |
| rrectB.setRectXY(rectB, SkIntToScalar(1), SkIntToScalar(2)); |
| |
| SkPath pathA, pathB; |
| |
| pathA.addRoundRect(rectA, SkIntToScalar(5), SkIntToScalar(5)); |
| pathB.addRoundRect(rectB, SkIntToScalar(5), SkIntToScalar(5)); |
| |
| SkClipStack stack; |
| SkRect devClipBound; |
| bool isIntersectionOfRects = false; |
| |
| int testCase = 0; |
| int numBitTests = SkClipStack::Element::DeviceSpaceType::kPath == primType ? 4 : 1; |
| for (int invBits = 0; invBits < numBitTests; ++invBits) { |
| for (size_t op = 0; op < SK_ARRAY_COUNT(gOps); ++op) { |
| |
| stack.save(); |
| bool doInvA = SkToBool(invBits & 1); |
| bool doInvB = SkToBool(invBits & 2); |
| |
| pathA.setFillType(doInvA ? SkPathFillType::kInverseEvenOdd : |
| SkPathFillType::kEvenOdd); |
| pathB.setFillType(doInvB ? SkPathFillType::kInverseEvenOdd : |
| SkPathFillType::kEvenOdd); |
| |
| switch (primType) { |
| case SkClipStack::Element::DeviceSpaceType::kShader: |
| case SkClipStack::Element::DeviceSpaceType::kEmpty: |
| SkDEBUGFAIL("Don't call this with kEmpty or kShader."); |
| break; |
| case SkClipStack::Element::DeviceSpaceType::kRect: |
| stack.clipRect(rectA, SkMatrix::I(), SkClipOp::kIntersect, false); |
| stack.clipRect(rectB, SkMatrix::I(), gOps[op], false); |
| break; |
| case SkClipStack::Element::DeviceSpaceType::kRRect: |
| stack.clipRRect(rrectA, SkMatrix::I(), SkClipOp::kIntersect, false); |
| stack.clipRRect(rrectB, SkMatrix::I(), gOps[op], false); |
| break; |
| case SkClipStack::Element::DeviceSpaceType::kPath: |
| stack.clipPath(pathA, SkMatrix::I(), SkClipOp::kIntersect, false); |
| stack.clipPath(pathB, SkMatrix::I(), gOps[op], false); |
| break; |
| } |
| |
| REPORTER_ASSERT(reporter, !stack.isWideOpen()); |
| REPORTER_ASSERT(reporter, SkClipStack::kWideOpenGenID != stack.getTopmostGenID()); |
| |
| stack.getConservativeBounds(0, 0, 100, 100, &devClipBound, |
| &isIntersectionOfRects); |
| |
| if (SkClipStack::Element::DeviceSpaceType::kRect == primType) { |
| REPORTER_ASSERT(reporter, isIntersectionOfRects == |
| (gOps[op] == SkClipOp::kIntersect)); |
| } else { |
| REPORTER_ASSERT(reporter, !isIntersectionOfRects); |
| } |
| |
| SkASSERT(testCase < gNumCases); |
| REPORTER_ASSERT(reporter, devClipBound == gAnswerRectsBW[testCase]); |
| ++testCase; |
| |
| stack.restore(); |
| } |
| } |
| } |
| |
| // Test out 'isWideOpen' entry point |
| static void test_isWideOpen(skiatest::Reporter* reporter) { |
| { |
| // Empty stack is wide open. Wide open stack means that gen id is wide open. |
| SkClipStack stack; |
| REPORTER_ASSERT(reporter, stack.isWideOpen()); |
| REPORTER_ASSERT(reporter, SkClipStack::kWideOpenGenID == stack.getTopmostGenID()); |
| } |
| |
| SkRect rectA, rectB; |
| |
| rectA.setLTRB(10, 10, 40, 40); |
| rectB.setLTRB(50, 50, 80, 80); |
| |
| // Stack should initially be wide open |
| { |
| SkClipStack stack; |
| |
| REPORTER_ASSERT(reporter, stack.isWideOpen()); |
| REPORTER_ASSERT(reporter, SkClipStack::kWideOpenGenID == stack.getTopmostGenID()); |
| } |
| |
| // Test out empty difference from a wide open clip |
| { |
| SkClipStack stack; |
| |
| SkRect emptyRect; |
| emptyRect.setEmpty(); |
| |
| stack.clipRect(emptyRect, SkMatrix::I(), SkClipOp::kDifference, false); |
| |
| REPORTER_ASSERT(reporter, stack.isWideOpen()); |
| REPORTER_ASSERT(reporter, SkClipStack::kWideOpenGenID == stack.getTopmostGenID()); |
| } |
| |
| // Test out return to wide open |
| { |
| SkClipStack stack; |
| |
| stack.save(); |
| |
| stack.clipRect(rectA, SkMatrix::I(), SkClipOp::kIntersect, false); |
| |
| REPORTER_ASSERT(reporter, !stack.isWideOpen()); |
| REPORTER_ASSERT(reporter, SkClipStack::kWideOpenGenID != stack.getTopmostGenID()); |
| |
| stack.restore(); |
| |
| REPORTER_ASSERT(reporter, stack.isWideOpen()); |
| REPORTER_ASSERT(reporter, SkClipStack::kWideOpenGenID == stack.getTopmostGenID()); |
| } |
| } |
| |
| static int count(const SkClipStack& stack) { |
| |
| SkClipStack::Iter iter(stack, SkClipStack::Iter::kTop_IterStart); |
| |
| const SkClipStack::Element* element = nullptr; |
| int count = 0; |
| |
| for (element = iter.prev(); element; element = iter.prev(), ++count) { |
| } |
| |
| return count; |
| } |
| |
| static void test_rect_inverse_fill(skiatest::Reporter* reporter) { |
| // non-intersecting rectangles |
| SkRect rect = SkRect::MakeLTRB(0, 0, 10, 10); |
| |
| SkPath path; |
| path.addRect(rect); |
| path.toggleInverseFillType(); |
| SkClipStack stack; |
| stack.clipPath(path, SkMatrix::I(), SkClipOp::kIntersect, false); |
| |
| SkRect bounds; |
| SkClipStack::BoundsType boundsType; |
| stack.getBounds(&bounds, &boundsType); |
| REPORTER_ASSERT(reporter, SkClipStack::kInsideOut_BoundsType == boundsType); |
| REPORTER_ASSERT(reporter, bounds == rect); |
| } |
| |
| static void test_rect_replace(skiatest::Reporter* reporter) { |
| SkRect rect = SkRect::MakeWH(100, 100); |
| SkRect rect2 = SkRect::MakeXYWH(50, 50, 100, 100); |
| |
| SkRect bound; |
| SkClipStack::BoundsType type; |
| bool isIntersectionOfRects; |
| |
| // Adding a new rect with the replace operator should not increase |
| // the stack depth. BW replacing BW. |
| { |
| SkClipStack stack; |
| REPORTER_ASSERT(reporter, 0 == count(stack)); |
| stack.replaceClip(rect, false); |
| REPORTER_ASSERT(reporter, 1 == count(stack)); |
| stack.replaceClip(rect, false); |
| REPORTER_ASSERT(reporter, 1 == count(stack)); |
| } |
| |
| // Adding a new rect with the replace operator should not increase |
| // the stack depth. AA replacing AA. |
| { |
| SkClipStack stack; |
| REPORTER_ASSERT(reporter, 0 == count(stack)); |
| stack.replaceClip(rect, true); |
| REPORTER_ASSERT(reporter, 1 == count(stack)); |
| stack.replaceClip(rect, true); |
| REPORTER_ASSERT(reporter, 1 == count(stack)); |
| } |
| |
| // Adding a new rect with the replace operator should not increase |
| // the stack depth. BW replacing AA replacing BW. |
| { |
| SkClipStack stack; |
| REPORTER_ASSERT(reporter, 0 == count(stack)); |
| stack.replaceClip(rect, false); |
| REPORTER_ASSERT(reporter, 1 == count(stack)); |
| stack.replaceClip(rect, true); |
| REPORTER_ASSERT(reporter, 1 == count(stack)); |
| stack.replaceClip(rect, false); |
| REPORTER_ASSERT(reporter, 1 == count(stack)); |
| } |
| |
| // Make sure replace clip rects don't collapse too much. |
| { |
| SkClipStack stack; |
| stack.replaceClip(rect, false); |
| stack.clipRect(rect2, SkMatrix::I(), SkClipOp::kIntersect, false); |
| REPORTER_ASSERT(reporter, 1 == count(stack)); |
| |
| stack.save(); |
| stack.replaceClip(rect, false); |
| REPORTER_ASSERT(reporter, 2 == count(stack)); |
| stack.getBounds(&bound, &type, &isIntersectionOfRects); |
| REPORTER_ASSERT(reporter, bound == rect); |
| stack.restore(); |
| REPORTER_ASSERT(reporter, 1 == count(stack)); |
| |
| stack.save(); |
| stack.replaceClip(rect, false); |
| stack.replaceClip(rect, false); |
| REPORTER_ASSERT(reporter, 2 == count(stack)); |
| stack.restore(); |
| REPORTER_ASSERT(reporter, 1 == count(stack)); |
| |
| stack.save(); |
| stack.replaceClip(rect, false); |
| stack.clipRect(rect2, SkMatrix::I(), SkClipOp::kIntersect, false); |
| stack.replaceClip(rect, false); |
| REPORTER_ASSERT(reporter, 2 == count(stack)); |
| stack.restore(); |
| REPORTER_ASSERT(reporter, 1 == count(stack)); |
| } |
| } |
| |
| // Simplified path-based version of test_rect_replace. |
| static void test_path_replace(skiatest::Reporter* reporter) { |
| auto replacePath = [](SkClipStack* stack, const SkPath& path, bool doAA) { |
| const SkRect wideOpen = SkRect::MakeLTRB(-1000, -1000, 1000, 1000); |
| stack->replaceClip(wideOpen, false); |
| stack->clipPath(path, SkMatrix::I(), SkClipOp::kIntersect, doAA); |
| }; |
| SkRect rect = SkRect::MakeWH(100, 100); |
| SkPath path; |
| path.addCircle(50, 50, 50); |
| |
| // Emulating replace operations with more complex geometry is not atomic, it's a replace |
| // with a wide-open rect and then an intersection with the complex geometry. The replace can |
| // combine with prior elements, but the subsequent intersect cannot be combined so the stack |
| // continues to grow. |
| { |
| SkClipStack stack; |
| REPORTER_ASSERT(reporter, 0 == count(stack)); |
| replacePath(&stack, path, false); |
| REPORTER_ASSERT(reporter, 2 == count(stack)); |
| replacePath(&stack, path, false); |
| REPORTER_ASSERT(reporter, 2 == count(stack)); |
| } |
| |
| // Replacing rect with path. |
| { |
| SkClipStack stack; |
| stack.replaceClip(rect, true); |
| REPORTER_ASSERT(reporter, 1 == count(stack)); |
| replacePath(&stack, path, true); |
| REPORTER_ASSERT(reporter, 2 == count(stack)); |
| } |
| } |
| |
| // Test out SkClipStack's merging of rect clips. In particular exercise |
| // merging of aa vs. bw rects. |
| static void test_rect_merging(skiatest::Reporter* reporter) { |
| |
| SkRect overlapLeft = SkRect::MakeLTRB(10, 10, 50, 50); |
| SkRect overlapRight = SkRect::MakeLTRB(40, 40, 80, 80); |
| |
| SkRect nestedParent = SkRect::MakeLTRB(10, 10, 90, 90); |
| SkRect nestedChild = SkRect::MakeLTRB(40, 40, 60, 60); |
| |
| SkRect bound; |
| SkClipStack::BoundsType type; |
| bool isIntersectionOfRects; |
| |
| // all bw overlapping - should merge |
| { |
| SkClipStack stack; |
| stack.clipRect(overlapLeft, SkMatrix::I(), SkClipOp::kIntersect, false); |
| stack.clipRect(overlapRight, SkMatrix::I(), SkClipOp::kIntersect, false); |
| |
| REPORTER_ASSERT(reporter, 1 == count(stack)); |
| |
| stack.getBounds(&bound, &type, &isIntersectionOfRects); |
| |
| REPORTER_ASSERT(reporter, isIntersectionOfRects); |
| } |
| |
| // all aa overlapping - should merge |
| { |
| SkClipStack stack; |
| stack.clipRect(overlapLeft, SkMatrix::I(), SkClipOp::kIntersect, true); |
| stack.clipRect(overlapRight, SkMatrix::I(), SkClipOp::kIntersect, true); |
| |
| REPORTER_ASSERT(reporter, 1 == count(stack)); |
| |
| stack.getBounds(&bound, &type, &isIntersectionOfRects); |
| |
| REPORTER_ASSERT(reporter, isIntersectionOfRects); |
| } |
| |
| // mixed overlapping - should _not_ merge |
| { |
| SkClipStack stack; |
| stack.clipRect(overlapLeft, SkMatrix::I(), SkClipOp::kIntersect, true); |
| stack.clipRect(overlapRight, SkMatrix::I(), SkClipOp::kIntersect, false); |
| |
| REPORTER_ASSERT(reporter, 2 == count(stack)); |
| |
| stack.getBounds(&bound, &type, &isIntersectionOfRects); |
| |
| REPORTER_ASSERT(reporter, !isIntersectionOfRects); |
| } |
| |
| // mixed nested (bw inside aa) - should merge |
| { |
| SkClipStack stack; |
| stack.clipRect(nestedParent, SkMatrix::I(), SkClipOp::kIntersect, true); |
| stack.clipRect(nestedChild, SkMatrix::I(), SkClipOp::kIntersect, false); |
| |
| REPORTER_ASSERT(reporter, 1 == count(stack)); |
| |
| stack.getBounds(&bound, &type, &isIntersectionOfRects); |
| |
| REPORTER_ASSERT(reporter, isIntersectionOfRects); |
| } |
| |
| // mixed nested (aa inside bw) - should merge |
| { |
| SkClipStack stack; |
| stack.clipRect(nestedParent, SkMatrix::I(), SkClipOp::kIntersect, false); |
| stack.clipRect(nestedChild, SkMatrix::I(), SkClipOp::kIntersect, true); |
| |
| REPORTER_ASSERT(reporter, 1 == count(stack)); |
| |
| stack.getBounds(&bound, &type, &isIntersectionOfRects); |
| |
| REPORTER_ASSERT(reporter, isIntersectionOfRects); |
| } |
| |
| // reverse nested (aa inside bw) - should _not_ merge |
| { |
| SkClipStack stack; |
| stack.clipRect(nestedChild, SkMatrix::I(), SkClipOp::kIntersect, false); |
| stack.clipRect(nestedParent, SkMatrix::I(), SkClipOp::kIntersect, true); |
| |
| REPORTER_ASSERT(reporter, 2 == count(stack)); |
| |
| stack.getBounds(&bound, &type, &isIntersectionOfRects); |
| |
| REPORTER_ASSERT(reporter, !isIntersectionOfRects); |
| } |
| } |
| |
| static void test_quickContains(skiatest::Reporter* reporter) { |
| SkRect testRect = SkRect::MakeLTRB(10, 10, 40, 40); |
| SkRect insideRect = SkRect::MakeLTRB(20, 20, 30, 30); |
| SkRect intersectingRect = SkRect::MakeLTRB(25, 25, 50, 50); |
| SkRect outsideRect = SkRect::MakeLTRB(0, 0, 50, 50); |
| SkRect nonIntersectingRect = SkRect::MakeLTRB(100, 100, 110, 110); |
| |
| SkPath insideCircle; |
| insideCircle.addCircle(25, 25, 5); |
| SkPath intersectingCircle; |
| intersectingCircle.addCircle(25, 40, 10); |
| SkPath outsideCircle; |
| outsideCircle.addCircle(25, 25, 50); |
| SkPath nonIntersectingCircle; |
| nonIntersectingCircle.addCircle(100, 100, 5); |
| |
| { |
| SkClipStack stack; |
| stack.clipRect(outsideRect, SkMatrix::I(), SkClipOp::kDifference, false); |
| // return false because quickContains currently does not care for kDifference |
| REPORTER_ASSERT(reporter, false == stack.quickContains(testRect)); |
| } |
| |
| // Replace Op tests |
| { |
| SkClipStack stack; |
| stack.replaceClip(outsideRect, false); |
| REPORTER_ASSERT(reporter, true == stack.quickContains(testRect)); |
| } |
| |
| { |
| SkClipStack stack; |
| stack.clipRect(insideRect, SkMatrix::I(), SkClipOp::kIntersect, false); |
| stack.save(); // To prevent in-place substitution by replace OP |
| stack.replaceClip(outsideRect, false); |
| REPORTER_ASSERT(reporter, true == stack.quickContains(testRect)); |
| stack.restore(); |
| } |
| |
| { |
| SkClipStack stack; |
| stack.clipRect(outsideRect, SkMatrix::I(), SkClipOp::kIntersect, false); |
| stack.save(); // To prevent in-place substitution by replace OP |
| stack.replaceClip(insideRect, false); |
| REPORTER_ASSERT(reporter, false == stack.quickContains(testRect)); |
| stack.restore(); |
| } |
| |
| // Verify proper traversal of multi-element clip |
| { |
| SkClipStack stack; |
| stack.clipRect(insideRect, SkMatrix::I(), SkClipOp::kIntersect, false); |
| // Use a path for second clip to prevent in-place intersection |
| stack.clipPath(outsideCircle, SkMatrix::I(), SkClipOp::kIntersect, false); |
| REPORTER_ASSERT(reporter, false == stack.quickContains(testRect)); |
| } |
| |
| // Intersect Op tests with rectangles |
| { |
| SkClipStack stack; |
| stack.clipRect(outsideRect, SkMatrix::I(), SkClipOp::kIntersect, false); |
| REPORTER_ASSERT(reporter, true == stack.quickContains(testRect)); |
| } |
| |
| { |
| SkClipStack stack; |
| stack.clipRect(insideRect, SkMatrix::I(), SkClipOp::kIntersect, false); |
| REPORTER_ASSERT(reporter, false == stack.quickContains(testRect)); |
| } |
| |
| { |
| SkClipStack stack; |
| stack.clipRect(intersectingRect, SkMatrix::I(), SkClipOp::kIntersect, false); |
| REPORTER_ASSERT(reporter, false == stack.quickContains(testRect)); |
| } |
| |
| { |
| SkClipStack stack; |
| stack.clipRect(nonIntersectingRect, SkMatrix::I(), SkClipOp::kIntersect, false); |
| REPORTER_ASSERT(reporter, false == stack.quickContains(testRect)); |
| } |
| |
| // Intersect Op tests with circle paths |
| { |
| SkClipStack stack; |
| stack.clipPath(outsideCircle, SkMatrix::I(), SkClipOp::kIntersect, false); |
| REPORTER_ASSERT(reporter, true == stack.quickContains(testRect)); |
| } |
| |
| { |
| SkClipStack stack; |
| stack.clipPath(insideCircle, SkMatrix::I(), SkClipOp::kIntersect, false); |
| REPORTER_ASSERT(reporter, false == stack.quickContains(testRect)); |
| } |
| |
| { |
| SkClipStack stack; |
| stack.clipPath(intersectingCircle, SkMatrix::I(), SkClipOp::kIntersect, false); |
| REPORTER_ASSERT(reporter, false == stack.quickContains(testRect)); |
| } |
| |
| { |
| SkClipStack stack; |
| stack.clipPath(nonIntersectingCircle, SkMatrix::I(), SkClipOp::kIntersect, false); |
| REPORTER_ASSERT(reporter, false == stack.quickContains(testRect)); |
| } |
| |
| // Intersect Op tests with inverse filled rectangles |
| { |
| SkClipStack stack; |
| SkPath path; |
| path.addRect(outsideRect); |
| path.toggleInverseFillType(); |
| stack.clipPath(path, SkMatrix::I(), SkClipOp::kIntersect, false); |
| REPORTER_ASSERT(reporter, false == stack.quickContains(testRect)); |
| } |
| |
| { |
| SkClipStack stack; |
| SkPath path; |
| path.addRect(insideRect); |
| path.toggleInverseFillType(); |
| stack.clipPath(path, SkMatrix::I(), SkClipOp::kIntersect, false); |
| REPORTER_ASSERT(reporter, false == stack.quickContains(testRect)); |
| } |
| |
| { |
| SkClipStack stack; |
| SkPath path; |
| path.addRect(intersectingRect); |
| path.toggleInverseFillType(); |
| stack.clipPath(path, SkMatrix::I(), SkClipOp::kIntersect, false); |
| REPORTER_ASSERT(reporter, false == stack.quickContains(testRect)); |
| } |
| |
| { |
| SkClipStack stack; |
| SkPath path; |
| path.addRect(nonIntersectingRect); |
| path.toggleInverseFillType(); |
| stack.clipPath(path, SkMatrix::I(), SkClipOp::kIntersect, false); |
| REPORTER_ASSERT(reporter, true == stack.quickContains(testRect)); |
| } |
| |
| // Intersect Op tests with inverse filled circles |
| { |
| SkClipStack stack; |
| SkPath path = outsideCircle; |
| path.toggleInverseFillType(); |
| stack.clipPath(path, SkMatrix::I(), SkClipOp::kIntersect, false); |
| REPORTER_ASSERT(reporter, false == stack.quickContains(testRect)); |
| } |
| |
| { |
| SkClipStack stack; |
| SkPath path = insideCircle; |
| path.toggleInverseFillType(); |
| stack.clipPath(path, SkMatrix::I(), SkClipOp::kIntersect, false); |
| REPORTER_ASSERT(reporter, false == stack.quickContains(testRect)); |
| } |
| |
| { |
| SkClipStack stack; |
| SkPath path = intersectingCircle; |
| path.toggleInverseFillType(); |
| stack.clipPath(path, SkMatrix::I(), SkClipOp::kIntersect, false); |
| REPORTER_ASSERT(reporter, false == stack.quickContains(testRect)); |
| } |
| |
| { |
| SkClipStack stack; |
| SkPath path = nonIntersectingCircle; |
| path.toggleInverseFillType(); |
| stack.clipPath(path, SkMatrix::I(), SkClipOp::kIntersect, false); |
| REPORTER_ASSERT(reporter, true == stack.quickContains(testRect)); |
| } |
| } |
| |
| static void set_region_to_stack(const SkClipStack& stack, const SkIRect& bounds, SkRegion* region) { |
| region->setRect(bounds); |
| SkClipStack::Iter iter(stack, SkClipStack::Iter::kBottom_IterStart); |
| while (const SkClipStack::Element *element = iter.next()) { |
| SkRegion elemRegion; |
| SkRegion boundsRgn(bounds); |
| SkPath path; |
| |
| switch (element->getDeviceSpaceType()) { |
| case SkClipStack::Element::DeviceSpaceType::kEmpty: |
| elemRegion.setEmpty(); |
| break; |
| default: |
| element->asDeviceSpacePath(&path); |
| elemRegion.setPath(path, boundsRgn); |
| break; |
| } |
| |
| region->op(elemRegion, element->isReplaceOp() ? SkRegion::kReplace_Op |
| : (SkRegion::Op) element->getOp()); |
| } |
| } |
| |
| static void test_invfill_diff_bug(skiatest::Reporter* reporter) { |
| SkClipStack stack; |
| stack.clipRect({10, 10, 20, 20}, SkMatrix::I(), SkClipOp::kIntersect, false); |
| |
| SkPath path; |
| path.addRect({30, 10, 40, 20}); |
| path.setFillType(SkPathFillType::kInverseWinding); |
| stack.clipPath(path, SkMatrix::I(), SkClipOp::kDifference, false); |
| |
| REPORTER_ASSERT(reporter, SkClipStack::kEmptyGenID == stack.getTopmostGenID()); |
| |
| SkRect stackBounds; |
| SkClipStack::BoundsType stackBoundsType; |
| stack.getBounds(&stackBounds, &stackBoundsType); |
| |
| REPORTER_ASSERT(reporter, stackBounds.isEmpty()); |
| REPORTER_ASSERT(reporter, SkClipStack::kNormal_BoundsType == stackBoundsType); |
| |
| SkRegion region; |
| set_region_to_stack(stack, {0, 0, 50, 30}, ®ion); |
| |
| REPORTER_ASSERT(reporter, region.isEmpty()); |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////////////////////////// |
| |
| static void test_is_rrect_deep_rect_stack(skiatest::Reporter* reporter) { |
| static constexpr SkRect kTargetBounds = SkRect::MakeWH(1000, 500); |
| // All antialiased or all not antialiased. |
| for (bool aa : {false, true}) { |
| SkClipStack stack; |
| for (int i = 0; i <= 100; ++i) { |
| stack.save(); |
| stack.clipRect(SkRect::MakeLTRB(i, 0.5, kTargetBounds.width(), kTargetBounds.height()), |
| SkMatrix::I(), SkClipOp::kIntersect, aa); |
| } |
| SkRRect rrect; |
| bool isAA; |
| SkRRect expected = SkRRect::MakeRect( |
| SkRect::MakeLTRB(100, 0.5, kTargetBounds.width(), kTargetBounds.height())); |
| if (stack.isRRect(kTargetBounds, &rrect, &isAA)) { |
| REPORTER_ASSERT(reporter, rrect == expected); |
| REPORTER_ASSERT(reporter, aa == isAA); |
| } else { |
| ERRORF(reporter, "Expected to be an rrect."); |
| } |
| } |
| // Mixed AA and non-AA without simple containment. |
| SkClipStack stack; |
| for (int i = 0; i <= 100; ++i) { |
| bool aa = i & 0b1; |
| int j = 100 - i; |
| stack.save(); |
| stack.clipRect(SkRect::MakeLTRB(i, j + 0.5, kTargetBounds.width(), kTargetBounds.height()), |
| SkMatrix::I(), SkClipOp::kIntersect, aa); |
| } |
| SkRRect rrect; |
| bool isAA; |
| REPORTER_ASSERT(reporter, !stack.isRRect(kTargetBounds, &rrect, &isAA)); |
| } |
| |
| DEF_TEST(ClipStack, reporter) { |
| SkClipStack stack; |
| |
| REPORTER_ASSERT(reporter, 0 == stack.getSaveCount()); |
| assert_count(reporter, stack, 0); |
| |
| static const SkIRect gRects[] = { |
| { 0, 0, 100, 100 }, |
| { 25, 25, 125, 125 }, |
| { 0, 0, 1000, 1000 }, |
| { 0, 0, 75, 75 } |
| }; |
| for (size_t i = 0; i < SK_ARRAY_COUNT(gRects); i++) { |
| stack.clipDevRect(gRects[i], SkClipOp::kIntersect); |
| } |
| |
| // all of the above rects should have been intersected, leaving only 1 rect |
| SkClipStack::B2TIter iter(stack); |
| const SkClipStack::Element* element = iter.next(); |
| SkRect answer; |
| answer.setLTRB(25, 25, 75, 75); |
| |
| REPORTER_ASSERT(reporter, element); |
| REPORTER_ASSERT(reporter, |
| SkClipStack::Element::DeviceSpaceType::kRect == element->getDeviceSpaceType()); |
| REPORTER_ASSERT(reporter, SkClipOp::kIntersect == element->getOp()); |
| REPORTER_ASSERT(reporter, element->getDeviceSpaceRect() == answer); |
| // now check that we only had one in our iterator |
| REPORTER_ASSERT(reporter, !iter.next()); |
| |
| stack.reset(); |
| REPORTER_ASSERT(reporter, 0 == stack.getSaveCount()); |
| assert_count(reporter, stack, 0); |
| |
| test_assign_and_comparison(reporter); |
| test_iterators(reporter); |
| test_bounds(reporter, SkClipStack::Element::DeviceSpaceType::kRect); |
| test_bounds(reporter, SkClipStack::Element::DeviceSpaceType::kRRect); |
| test_bounds(reporter, SkClipStack::Element::DeviceSpaceType::kPath); |
| test_isWideOpen(reporter); |
| test_rect_merging(reporter); |
| test_rect_replace(reporter); |
| test_rect_inverse_fill(reporter); |
| test_path_replace(reporter); |
| test_quickContains(reporter); |
| test_invfill_diff_bug(reporter); |
| test_is_rrect_deep_rect_stack(reporter); |
| } |
