| /* |
| * 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/gpu/GrConfig.h" |
| #include "include/gpu/GrDirectContext.h" |
| #include "include/private/GrResourceKey.h" |
| #include "include/private/SkTemplates.h" |
| #include "include/utils/SkRandom.h" |
| #include "src/core/SkClipOpPriv.h" |
| #include "src/core/SkClipStack.h" |
| #include "src/core/SkTLList.h" |
| #include "src/gpu/GrClip.h" |
| #include "src/gpu/GrClipStackClip.h" |
| #include "src/gpu/GrDirectContextPriv.h" |
| #include "src/gpu/GrReducedClip.h" |
| #include "src/gpu/GrResourceCache.h" |
| #include "src/gpu/GrTexture.h" |
| #include "src/gpu/GrTextureProxy.h" |
| #include "tests/Test.h" |
| #include "tools/gpu/GrContextFactory.h" |
| |
| #include <cstring> |
| #include <initializer_list> |
| #include <new> |
| |
| class GrCaps; |
| |
| typedef GrReducedClip::ElementList ElementList; |
| typedef GrReducedClip::InitialState InitialState; |
| |
| 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(), kIntersect_SkClipOp, doAA); |
| |
| s.save(); |
| REPORTER_ASSERT(reporter, 2 == s.getSaveCount()); |
| |
| SkRect r = SkRect::MakeLTRB(1, 2, 3, 4); |
| s.clipRect(r, SkMatrix::I(), kIntersect_SkClipOp, doAA); |
| r = SkRect::MakeLTRB(10, 11, 12, 13); |
| s.clipRect(r, SkMatrix::I(), kIntersect_SkClipOp, doAA); |
| |
| s.save(); |
| REPORTER_ASSERT(reporter, 3 == s.getSaveCount()); |
| |
| r = SkRect::MakeLTRB(14, 15, 16, 17); |
| s.clipRect(r, SkMatrix::I(), kUnion_SkClipOp, 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(), kUnion_SkClipOp, 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(), kIntersect_SkClipOp, 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(), kUnion_SkClipOp, 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(), kUnion_SkClipOp, 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(), kIntersect_SkClipOp, 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 union op will prevent these from being fused together |
| stack.clipRect(gRects[i], SkMatrix::I(), kUnion_SkClipOp, 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(kUnion_SkClipOp); |
| 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 = 20; |
| static const SkRect gAnswerRectsBW[gNumCases] = { |
| // A op B |
| { 40, 40, 50, 50 }, |
| { 10, 10, 50, 50 }, |
| { 10, 10, 80, 80 }, |
| { 10, 10, 80, 80 }, |
| { 40, 40, 80, 80 }, |
| |
| // invA op B |
| { 40, 40, 80, 80 }, |
| { 0, 0, 100, 100 }, |
| { 0, 0, 100, 100 }, |
| { 0, 0, 100, 100 }, |
| { 40, 40, 50, 50 }, |
| |
| // A op invB |
| { 10, 10, 50, 50 }, |
| { 40, 40, 50, 50 }, |
| { 0, 0, 100, 100 }, |
| { 0, 0, 100, 100 }, |
| { 0, 0, 100, 100 }, |
| |
| // invA op invB |
| { 0, 0, 100, 100 }, |
| { 40, 40, 80, 80 }, |
| { 0, 0, 100, 100 }, |
| { 10, 10, 80, 80 }, |
| { 10, 10, 50, 50 }, |
| }; |
| |
| static const SkClipOp gOps[] = { |
| kIntersect_SkClipOp, |
| kDifference_SkClipOp, |
| kUnion_SkClipOp, |
| kXOR_SkClipOp, |
| kReverseDifference_SkClipOp |
| }; |
| |
| 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(), kIntersect_SkClipOp, false); |
| stack.clipRect(rectB, SkMatrix::I(), gOps[op], false); |
| break; |
| case SkClipStack::Element::DeviceSpaceType::kRRect: |
| stack.clipRRect(rrectA, SkMatrix::I(), kIntersect_SkClipOp, false); |
| stack.clipRRect(rrectB, SkMatrix::I(), gOps[op], false); |
| break; |
| case SkClipStack::Element::DeviceSpaceType::kPath: |
| stack.clipPath(pathA, SkMatrix::I(), kIntersect_SkClipOp, 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] == kIntersect_SkClipOp)); |
| } 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 case where the user specifies a union that includes everything |
| { |
| SkClipStack stack; |
| |
| SkPath clipA, clipB; |
| |
| clipA.addRoundRect(rectA, SkIntToScalar(5), SkIntToScalar(5)); |
| clipA.setFillType(SkPathFillType::kInverseEvenOdd); |
| |
| clipB.addRoundRect(rectB, SkIntToScalar(5), SkIntToScalar(5)); |
| clipB.setFillType(SkPathFillType::kInverseEvenOdd); |
| |
| stack.clipPath(clipA, SkMatrix::I(), kReplace_SkClipOp, false); |
| stack.clipPath(clipB, SkMatrix::I(), kUnion_SkClipOp, false); |
| |
| REPORTER_ASSERT(reporter, stack.isWideOpen()); |
| REPORTER_ASSERT(reporter, SkClipStack::kWideOpenGenID == stack.getTopmostGenID()); |
| } |
| |
| // Test out union w/ a wide open clip |
| { |
| SkClipStack stack; |
| |
| stack.clipRect(rectA, SkMatrix::I(), kUnion_SkClipOp, false); |
| |
| 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(), kDifference_SkClipOp, 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(), kReplace_SkClipOp, 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(), kIntersect_SkClipOp, 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.clipRect(rect, SkMatrix::I(), kReplace_SkClipOp, false); |
| REPORTER_ASSERT(reporter, 1 == count(stack)); |
| stack.clipRect(rect, SkMatrix::I(), kReplace_SkClipOp, 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.clipRect(rect, SkMatrix::I(), kReplace_SkClipOp, true); |
| REPORTER_ASSERT(reporter, 1 == count(stack)); |
| stack.clipRect(rect, SkMatrix::I(), kReplace_SkClipOp, 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.clipRect(rect, SkMatrix::I(), kReplace_SkClipOp, false); |
| REPORTER_ASSERT(reporter, 1 == count(stack)); |
| stack.clipRect(rect, SkMatrix::I(), kReplace_SkClipOp, true); |
| REPORTER_ASSERT(reporter, 1 == count(stack)); |
| stack.clipRect(rect, SkMatrix::I(), kReplace_SkClipOp, false); |
| REPORTER_ASSERT(reporter, 1 == count(stack)); |
| } |
| |
| // Make sure replace clip rects don't collapse too much. |
| { |
| SkClipStack stack; |
| stack.clipRect(rect, SkMatrix::I(), kReplace_SkClipOp, false); |
| stack.clipRect(rect2, SkMatrix::I(), kIntersect_SkClipOp, false); |
| REPORTER_ASSERT(reporter, 1 == count(stack)); |
| |
| stack.save(); |
| stack.clipRect(rect, SkMatrix::I(), kReplace_SkClipOp, 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.clipRect(rect, SkMatrix::I(), kReplace_SkClipOp, false); |
| stack.clipRect(rect, SkMatrix::I(), kReplace_SkClipOp, false); |
| REPORTER_ASSERT(reporter, 2 == count(stack)); |
| stack.restore(); |
| REPORTER_ASSERT(reporter, 1 == count(stack)); |
| |
| stack.save(); |
| stack.clipRect(rect, SkMatrix::I(), kReplace_SkClipOp, false); |
| stack.clipRect(rect2, SkMatrix::I(), kIntersect_SkClipOp, false); |
| stack.clipRect(rect, SkMatrix::I(), kReplace_SkClipOp, 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) { |
| SkRect rect = SkRect::MakeWH(100, 100); |
| SkPath path; |
| path.addCircle(50, 50, 50); |
| |
| // Replace operation doesn't grow the stack. |
| { |
| SkClipStack stack; |
| REPORTER_ASSERT(reporter, 0 == count(stack)); |
| stack.clipPath(path, SkMatrix::I(), kReplace_SkClipOp, false); |
| REPORTER_ASSERT(reporter, 1 == count(stack)); |
| stack.clipPath(path, SkMatrix::I(), kReplace_SkClipOp, false); |
| REPORTER_ASSERT(reporter, 1 == count(stack)); |
| } |
| |
| // Replacing rect with path. |
| { |
| SkClipStack stack; |
| stack.clipRect(rect, SkMatrix::I(), kReplace_SkClipOp, true); |
| REPORTER_ASSERT(reporter, 1 == count(stack)); |
| stack.clipPath(path, SkMatrix::I(), kReplace_SkClipOp, true); |
| REPORTER_ASSERT(reporter, 1 == 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(), kReplace_SkClipOp, false); |
| |
| stack.clipRect(overlapRight, SkMatrix::I(), kIntersect_SkClipOp, 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(), kReplace_SkClipOp, true); |
| |
| stack.clipRect(overlapRight, SkMatrix::I(), kIntersect_SkClipOp, 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(), kReplace_SkClipOp, true); |
| |
| stack.clipRect(overlapRight, SkMatrix::I(), kIntersect_SkClipOp, 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(), kReplace_SkClipOp, true); |
| |
| stack.clipRect(nestedChild, SkMatrix::I(), kIntersect_SkClipOp, 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(), kReplace_SkClipOp, false); |
| |
| stack.clipRect(nestedChild, SkMatrix::I(), kIntersect_SkClipOp, 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(), kReplace_SkClipOp, false); |
| |
| stack.clipRect(nestedParent, SkMatrix::I(), kIntersect_SkClipOp, 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(), kDifference_SkClipOp, false); |
| // return false because quickContains currently does not care for kDifference_SkClipOp |
| REPORTER_ASSERT(reporter, false == stack.quickContains(testRect)); |
| } |
| |
| // Replace Op tests |
| { |
| SkClipStack stack; |
| stack.clipRect(outsideRect, SkMatrix::I(), kReplace_SkClipOp, false); |
| REPORTER_ASSERT(reporter, true == stack.quickContains(testRect)); |
| } |
| |
| { |
| SkClipStack stack; |
| stack.clipRect(insideRect, SkMatrix::I(), kIntersect_SkClipOp, false); |
| stack.save(); // To prevent in-place substitution by replace OP |
| stack.clipRect(outsideRect, SkMatrix::I(), kReplace_SkClipOp, false); |
| REPORTER_ASSERT(reporter, true == stack.quickContains(testRect)); |
| stack.restore(); |
| } |
| |
| { |
| SkClipStack stack; |
| stack.clipRect(outsideRect, SkMatrix::I(), kIntersect_SkClipOp, false); |
| stack.save(); // To prevent in-place substitution by replace OP |
| stack.clipRect(insideRect, SkMatrix::I(), kReplace_SkClipOp, false); |
| REPORTER_ASSERT(reporter, false == stack.quickContains(testRect)); |
| stack.restore(); |
| } |
| |
| // Verify proper traversal of multi-element clip |
| { |
| SkClipStack stack; |
| stack.clipRect(insideRect, SkMatrix::I(), kIntersect_SkClipOp, false); |
| // Use a path for second clip to prevent in-place intersection |
| stack.clipPath(outsideCircle, SkMatrix::I(), kIntersect_SkClipOp, false); |
| REPORTER_ASSERT(reporter, false == stack.quickContains(testRect)); |
| } |
| |
| // Intersect Op tests with rectangles |
| { |
| SkClipStack stack; |
| stack.clipRect(outsideRect, SkMatrix::I(), kIntersect_SkClipOp, false); |
| REPORTER_ASSERT(reporter, true == stack.quickContains(testRect)); |
| } |
| |
| { |
| SkClipStack stack; |
| stack.clipRect(insideRect, SkMatrix::I(), kIntersect_SkClipOp, false); |
| REPORTER_ASSERT(reporter, false == stack.quickContains(testRect)); |
| } |
| |
| { |
| SkClipStack stack; |
| stack.clipRect(intersectingRect, SkMatrix::I(), kIntersect_SkClipOp, false); |
| REPORTER_ASSERT(reporter, false == stack.quickContains(testRect)); |
| } |
| |
| { |
| SkClipStack stack; |
| stack.clipRect(nonIntersectingRect, SkMatrix::I(), kIntersect_SkClipOp, false); |
| REPORTER_ASSERT(reporter, false == stack.quickContains(testRect)); |
| } |
| |
| // Intersect Op tests with circle paths |
| { |
| SkClipStack stack; |
| stack.clipPath(outsideCircle, SkMatrix::I(), kIntersect_SkClipOp, false); |
| REPORTER_ASSERT(reporter, true == stack.quickContains(testRect)); |
| } |
| |
| { |
| SkClipStack stack; |
| stack.clipPath(insideCircle, SkMatrix::I(), kIntersect_SkClipOp, false); |
| REPORTER_ASSERT(reporter, false == stack.quickContains(testRect)); |
| } |
| |
| { |
| SkClipStack stack; |
| stack.clipPath(intersectingCircle, SkMatrix::I(), kIntersect_SkClipOp, false); |
| REPORTER_ASSERT(reporter, false == stack.quickContains(testRect)); |
| } |
| |
| { |
| SkClipStack stack; |
| stack.clipPath(nonIntersectingCircle, SkMatrix::I(), kIntersect_SkClipOp, 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(), kIntersect_SkClipOp, false); |
| REPORTER_ASSERT(reporter, false == stack.quickContains(testRect)); |
| } |
| |
| { |
| SkClipStack stack; |
| SkPath path; |
| path.addRect(insideRect); |
| path.toggleInverseFillType(); |
| stack.clipPath(path, SkMatrix::I(), kIntersect_SkClipOp, false); |
| REPORTER_ASSERT(reporter, false == stack.quickContains(testRect)); |
| } |
| |
| { |
| SkClipStack stack; |
| SkPath path; |
| path.addRect(intersectingRect); |
| path.toggleInverseFillType(); |
| stack.clipPath(path, SkMatrix::I(), kIntersect_SkClipOp, false); |
| REPORTER_ASSERT(reporter, false == stack.quickContains(testRect)); |
| } |
| |
| { |
| SkClipStack stack; |
| SkPath path; |
| path.addRect(nonIntersectingRect); |
| path.toggleInverseFillType(); |
| stack.clipPath(path, SkMatrix::I(), kIntersect_SkClipOp, 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(), kIntersect_SkClipOp, false); |
| REPORTER_ASSERT(reporter, false == stack.quickContains(testRect)); |
| } |
| |
| { |
| SkClipStack stack; |
| SkPath path = insideCircle; |
| path.toggleInverseFillType(); |
| stack.clipPath(path, SkMatrix::I(), kIntersect_SkClipOp, false); |
| REPORTER_ASSERT(reporter, false == stack.quickContains(testRect)); |
| } |
| |
| { |
| SkClipStack stack; |
| SkPath path = intersectingCircle; |
| path.toggleInverseFillType(); |
| stack.clipPath(path, SkMatrix::I(), kIntersect_SkClipOp, false); |
| REPORTER_ASSERT(reporter, false == stack.quickContains(testRect)); |
| } |
| |
| { |
| SkClipStack stack; |
| SkPath path = nonIntersectingCircle; |
| path.toggleInverseFillType(); |
| stack.clipPath(path, SkMatrix::I(), kIntersect_SkClipOp, 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, (SkRegion::Op)element->getOp()); |
| } |
| } |
| |
| static void test_invfill_diff_bug(skiatest::Reporter* reporter) { |
| SkClipStack stack; |
| stack.clipRect({10, 10, 20, 20}, SkMatrix::I(), kIntersect_SkClipOp, false); |
| |
| SkPath path; |
| path.addRect({30, 10, 40, 20}); |
| path.setFillType(SkPathFillType::kInverseWinding); |
| stack.clipPath(path, SkMatrix::I(), kDifference_SkClipOp, 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()); |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////////////////////////// |
| |
| // Functions that add a shape to the clip stack. The shape is computed from a rectangle. |
| // AA is always disabled since the clip stack reducer can cause changes in aa rasterization of the |
| // stack. A fractional edge repeated in different elements may be rasterized fewer times using the |
| // reduced stack. |
| typedef void (*AddElementFunc) (const SkRect& rect, |
| bool invert, |
| SkClipOp op, |
| SkClipStack* stack, |
| bool doAA); |
| |
| static void add_round_rect(const SkRect& rect, bool invert, SkClipOp op, SkClipStack* stack, |
| bool doAA) { |
| SkScalar rx = rect.width() / 10; |
| SkScalar ry = rect.height() / 20; |
| if (invert) { |
| SkPath path; |
| path.addRoundRect(rect, rx, ry); |
| path.setFillType(SkPathFillType::kInverseWinding); |
| stack->clipPath(path, SkMatrix::I(), op, doAA); |
| } else { |
| SkRRect rrect; |
| rrect.setRectXY(rect, rx, ry); |
| stack->clipRRect(rrect, SkMatrix::I(), op, doAA); |
| } |
| }; |
| |
| static void add_rect(const SkRect& rect, bool invert, SkClipOp op, SkClipStack* stack, |
| bool doAA) { |
| if (invert) { |
| SkPath path; |
| path.addRect(rect); |
| path.setFillType(SkPathFillType::kInverseWinding); |
| stack->clipPath(path, SkMatrix::I(), op, doAA); |
| } else { |
| stack->clipRect(rect, SkMatrix::I(), op, doAA); |
| } |
| }; |
| |
| static void add_oval(const SkRect& rect, bool invert, SkClipOp op, SkClipStack* stack, |
| bool doAA) { |
| SkPath path; |
| path.addOval(rect); |
| if (invert) { |
| path.setFillType(SkPathFillType::kInverseWinding); |
| } |
| stack->clipPath(path, SkMatrix::I(), op, doAA); |
| }; |
| |
| static void add_shader(const SkRect& rect, bool invert, SkClipOp op, SkClipStack* stack, |
| bool doAA) { |
| // invert, op, and doAA don't apply to shaders at the SkClipStack level; this is handled earlier |
| // in the SkCanvas->SkDevice stack. Use rect to produce unique gradients, however. |
| SkPoint corners[2] = { {rect.fLeft, rect.fTop}, {rect.fRight, rect.fBottom} }; |
| SkColor colors[2] = { SK_ColorBLACK, SK_ColorTRANSPARENT }; |
| auto gradient = SkGradientShader::MakeLinear(corners, colors, nullptr, 2, SkTileMode::kDecal); |
| stack->clipShader(std::move(gradient)); |
| } |
| |
| static void add_elem_to_stack(const SkClipStack::Element& element, SkClipStack* stack) { |
| switch (element.getDeviceSpaceType()) { |
| case SkClipStack::Element::DeviceSpaceType::kRect: |
| stack->clipRect(element.getDeviceSpaceRect(), SkMatrix::I(), element.getOp(), |
| element.isAA()); |
| break; |
| case SkClipStack::Element::DeviceSpaceType::kRRect: |
| stack->clipRRect(element.getDeviceSpaceRRect(), SkMatrix::I(), element.getOp(), |
| element.isAA()); |
| break; |
| case SkClipStack::Element::DeviceSpaceType::kPath: |
| stack->clipPath(element.getDeviceSpacePath(), SkMatrix::I(), element.getOp(), |
| element.isAA()); |
| break; |
| case SkClipStack::Element::DeviceSpaceType::kShader: |
| SkDEBUGFAIL("Why did the reducer put this in the mask elements."); |
| stack->clipShader(element.refShader()); |
| break; |
| case SkClipStack::Element::DeviceSpaceType::kEmpty: |
| SkDEBUGFAIL("Why did the reducer produce an explicit empty."); |
| stack->clipEmpty(); |
| break; |
| } |
| } |
| |
| static void test_reduced_clip_stack(skiatest::Reporter* reporter, bool enableClipShader) { |
| // We construct random clip stacks, reduce them, and then rasterize both versions to verify that |
| // they are equal. |
| |
| // All the clip elements will be contained within these bounds. |
| static const SkIRect kIBounds = SkIRect::MakeWH(100, 100); |
| static const SkRect kBounds = SkRect::Make(kIBounds); |
| |
| enum { |
| kNumTests = 250, |
| kMinElemsPerTest = 1, |
| kMaxElemsPerTest = 50, |
| }; |
| |
| // min/max size of a clip element as a fraction of kBounds. |
| static const SkScalar kMinElemSizeFrac = SK_Scalar1 / 5; |
| static const SkScalar kMaxElemSizeFrac = SK_Scalar1; |
| |
| static const SkClipOp kOps[] = { |
| kDifference_SkClipOp, |
| kIntersect_SkClipOp, |
| kUnion_SkClipOp, |
| kXOR_SkClipOp, |
| kReverseDifference_SkClipOp, |
| kReplace_SkClipOp, |
| }; |
| |
| // Replace operations short-circuit the optimizer. We want to make sure that we test this code |
| // path a little bit but we don't want it to prevent us from testing many longer traversals in |
| // the optimizer. |
| static const int kReplaceDiv = 4 * kMaxElemsPerTest; |
| |
| // We want to test inverse fills. However, they are quite rare in practice so don't over do it. |
| static const SkScalar kFractionInverted = SK_Scalar1 / kMaxElemsPerTest; |
| |
| static const SkScalar kFractionAntialiased = 0.25; |
| |
| static const AddElementFunc kElementFuncs[] = { |
| add_rect, |
| add_round_rect, |
| add_oval, |
| add_shader |
| }; |
| |
| SkRandom r; |
| |
| for (int i = 0; i < kNumTests; ++i) { |
| SkString testCase; |
| testCase.printf("Iteration %d", i); |
| |
| // Randomly generate a clip stack. |
| SkClipStack stack; |
| int numElems = r.nextRangeU(kMinElemsPerTest, kMaxElemsPerTest); |
| bool doAA = r.nextBiasedBool(kFractionAntialiased); |
| for (int e = 0; e < numElems; ++e) { |
| size_t opLimit = enableClipShader ? ((size_t) kIntersect_SkClipOp + 1) |
| : SK_ARRAY_COUNT(kOps); |
| SkClipOp op = kOps[r.nextULessThan(opLimit)]; |
| if (op == kReplace_SkClipOp) { |
| if (r.nextU() % kReplaceDiv) { |
| --e; |
| continue; |
| } |
| } |
| |
| // saves can change the clip stack behavior when an element is added. |
| bool doSave = r.nextBool(); |
| |
| SkSize size = SkSize::Make( |
| kBounds.width() * r.nextRangeScalar(kMinElemSizeFrac, kMaxElemSizeFrac), |
| kBounds.height() * r.nextRangeScalar(kMinElemSizeFrac, kMaxElemSizeFrac)); |
| |
| SkPoint xy = {r.nextRangeScalar(kBounds.fLeft, kBounds.fRight - size.fWidth), |
| r.nextRangeScalar(kBounds.fTop, kBounds.fBottom - size.fHeight)}; |
| |
| SkRect rect; |
| if (doAA) { |
| rect.setXYWH(xy.fX, xy.fY, size.fWidth, size.fHeight); |
| if (GrClip::IsPixelAligned(rect)) { |
| // Don't create an element that may accidentally become not antialiased. |
| rect.outset(0.5f, 0.5f); |
| } |
| SkASSERT(!GrClip::IsPixelAligned(rect)); |
| } else { |
| rect.setXYWH(SkScalarFloorToScalar(xy.fX), |
| SkScalarFloorToScalar(xy.fY), |
| SkScalarCeilToScalar(size.fWidth), |
| SkScalarCeilToScalar(size.fHeight)); |
| } |
| |
| bool invert = r.nextBiasedBool(kFractionInverted); |
| |
| size_t functionLimit = SK_ARRAY_COUNT(kElementFuncs); |
| if (!enableClipShader) { |
| functionLimit--; |
| } |
| kElementFuncs[r.nextULessThan(functionLimit)](rect, invert, op, &stack, doAA); |
| if (doSave) { |
| stack.save(); |
| } |
| } |
| |
| sk_sp<GrDirectContext> context = GrDirectContext::MakeMock(nullptr); |
| const GrCaps* caps = context->priv().caps(); |
| |
| // Zero the memory we will new the GrReducedClip into. This ensures the elements gen ID |
| // will be kInvalidGenID if left uninitialized. |
| SkAlignedSTStorage<1, GrReducedClip> storage; |
| memset(storage.get(), 0, sizeof(GrReducedClip)); |
| static_assert(0 == SkClipStack::kInvalidGenID); |
| |
| // Get the reduced version of the stack. |
| SkRect queryBounds = kBounds; |
| queryBounds.outset(kBounds.width() / 2, kBounds.height() / 2); |
| const GrReducedClip* reduced = new (storage.get()) GrReducedClip(stack, queryBounds, caps); |
| |
| REPORTER_ASSERT(reporter, |
| reduced->maskElements().isEmpty() || |
| SkClipStack::kInvalidGenID != reduced->maskGenID(), |
| testCase.c_str()); |
| |
| if (!reduced->maskElements().isEmpty()) { |
| REPORTER_ASSERT(reporter, reduced->hasScissor(), testCase.c_str()); |
| SkRect stackBounds; |
| SkClipStack::BoundsType stackBoundsType; |
| stack.getBounds(&stackBounds, &stackBoundsType); |
| REPORTER_ASSERT(reporter, reduced->maskRequiresAA() == doAA, testCase.c_str()); |
| } |
| |
| // Build a new clip stack based on the reduced clip elements |
| SkClipStack reducedStack; |
| if (GrReducedClip::InitialState::kAllOut == reduced->initialState()) { |
| // whether the result is bounded or not, the whole plane should start outside the clip. |
| reducedStack.clipEmpty(); |
| } |
| for (ElementList::Iter iter(reduced->maskElements()); iter.get(); iter.next()) { |
| add_elem_to_stack(*iter.get(), &reducedStack); |
| } |
| if (reduced->hasShader()) { |
| REPORTER_ASSERT(reporter, enableClipShader); |
| reducedStack.clipShader(reduced->shader()); |
| } |
| |
| SkIRect scissor = reduced->hasScissor() ? reduced->scissor() : kIBounds; |
| |
| // GrReducedClipStack assumes that the final result is clipped to the returned bounds |
| reducedStack.clipDevRect(scissor, kIntersect_SkClipOp); |
| stack.clipDevRect(scissor, kIntersect_SkClipOp); |
| |
| // convert both the original stack and reduced stack to SkRegions and see if they're equal |
| SkRegion region; |
| set_region_to_stack(stack, scissor, ®ion); |
| |
| SkRegion reducedRegion; |
| set_region_to_stack(reducedStack, scissor, &reducedRegion); |
| |
| REPORTER_ASSERT(reporter, region == reducedRegion, testCase.c_str()); |
| |
| reduced->~GrReducedClip(); |
| } |
| } |
| |
| #ifdef SK_BUILD_FOR_WIN |
| #define SUPPRESS_VISIBILITY_WARNING |
| #else |
| #define SUPPRESS_VISIBILITY_WARNING __attribute__((visibility("hidden"))) |
| #endif |
| |
| static void test_reduced_clip_stack_genid(skiatest::Reporter* reporter) { |
| { |
| SkClipStack stack; |
| stack.clipRect(SkRect::MakeXYWH(0, 0, 100, 100), SkMatrix::I(), kReplace_SkClipOp, |
| true); |
| stack.clipRect(SkRect::MakeXYWH(0, 0, SkScalar(50.3), SkScalar(50.3)), SkMatrix::I(), |
| kReplace_SkClipOp, true); |
| SkRect bounds = SkRect::MakeXYWH(0, 0, 100, 100); |
| |
| sk_sp<GrDirectContext> context = GrDirectContext::MakeMock(nullptr); |
| const GrCaps* caps = context->priv().caps(); |
| |
| SkAlignedSTStorage<1, GrReducedClip> storage; |
| memset(storage.get(), 0, sizeof(GrReducedClip)); |
| static_assert(0 == SkClipStack::kInvalidGenID); |
| const GrReducedClip* reduced = new (storage.get()) GrReducedClip(stack, bounds, caps); |
| |
| REPORTER_ASSERT(reporter, reduced->maskElements().count() == 1); |
| // Clips will be cached based on the generation id. Make sure the gen id is valid. |
| REPORTER_ASSERT(reporter, SkClipStack::kInvalidGenID != reduced->maskGenID()); |
| |
| reduced->~GrReducedClip(); |
| } |
| { |
| SkClipStack stack; |
| |
| // Create a clip with following 25.3, 25.3 boxes which are 25 apart: |
| // A B |
| // C D |
| |
| stack.clipRect(SkRect::MakeXYWH(0, 0, SkScalar(25.3), SkScalar(25.3)), SkMatrix::I(), |
| kReplace_SkClipOp, true); |
| uint32_t genIDA = stack.getTopmostGenID(); |
| stack.clipRect(SkRect::MakeXYWH(50, 0, SkScalar(25.3), SkScalar(25.3)), SkMatrix::I(), |
| kUnion_SkClipOp, true); |
| uint32_t genIDB = stack.getTopmostGenID(); |
| stack.clipRect(SkRect::MakeXYWH(0, 50, SkScalar(25.3), SkScalar(25.3)), SkMatrix::I(), |
| kUnion_SkClipOp, true); |
| uint32_t genIDC = stack.getTopmostGenID(); |
| stack.clipRect(SkRect::MakeXYWH(50, 50, SkScalar(25.3), SkScalar(25.3)), SkMatrix::I(), |
| kUnion_SkClipOp, true); |
| uint32_t genIDD = stack.getTopmostGenID(); |
| |
| |
| #define IXYWH SkIRect::MakeXYWH |
| #define XYWH SkRect::MakeXYWH |
| |
| SkIRect stackBounds = IXYWH(0, 0, 76, 76); |
| |
| // The base test is to test each rect in two ways: |
| // 1) The box dimensions. (Should reduce to "all in", no elements). |
| // 2) A bit over the box dimensions. |
| // In the case 2, test that the generation id is what is expected. |
| // The rects are of fractional size so that case 2 never gets optimized to an empty element |
| // list. |
| |
| // Not passing in tighter bounds is tested for consistency. |
| static const struct SUPPRESS_VISIBILITY_WARNING { |
| SkRect testBounds; |
| int reducedClipCount; |
| uint32_t reducedGenID; |
| InitialState initialState; |
| SkIRect clipIRect; |
| // parameter. |
| } testCases[] = { |
| |
| // Rect A. |
| { XYWH(0, 0, 25, 25), 0, SkClipStack::kInvalidGenID, GrReducedClip::InitialState::kAllIn, IXYWH(0, 0, 25, 25) }, |
| { XYWH(0.1f, 0.1f, 25.1f, 25.1f), 0, SkClipStack::kInvalidGenID, GrReducedClip::InitialState::kAllIn, IXYWH(0, 0, 26, 26) }, |
| { XYWH(0, 0, 27, 27), 1, genIDA, GrReducedClip::InitialState::kAllOut, IXYWH(0, 0, 26, 26)}, |
| |
| // Rect B. |
| { XYWH(50, 0, 25, 25), 0, SkClipStack::kInvalidGenID, GrReducedClip::InitialState::kAllIn, IXYWH(50, 0, 25, 25) }, |
| { XYWH(50, 0, 25.3f, 25.3f), 0, SkClipStack::kInvalidGenID, GrReducedClip::InitialState::kAllIn, IXYWH(50, 0, 26, 26) }, |
| { XYWH(50, 0, 27, 27), 1, genIDB, GrReducedClip::InitialState::kAllOut, IXYWH(50, 0, 26, 27) }, |
| |
| // Rect C. |
| { XYWH(0, 50, 25, 25), 0, SkClipStack::kInvalidGenID, GrReducedClip::InitialState::kAllIn, IXYWH(0, 50, 25, 25) }, |
| { XYWH(0.2f, 50.1f, 25.1f, 25.2f), 0, SkClipStack::kInvalidGenID, GrReducedClip::InitialState::kAllIn, IXYWH(0, 50, 26, 26) }, |
| { XYWH(0, 50, 27, 27), 1, genIDC, GrReducedClip::InitialState::kAllOut, IXYWH(0, 50, 27, 26) }, |
| |
| // Rect D. |
| { XYWH(50, 50, 25, 25), 0, SkClipStack::kInvalidGenID, GrReducedClip::InitialState::kAllIn, IXYWH(50, 50, 25, 25)}, |
| { XYWH(50.3f, 50.3f, 25, 25), 0, SkClipStack::kInvalidGenID, GrReducedClip::InitialState::kAllIn, IXYWH(50, 50, 26, 26)}, |
| { XYWH(50, 50, 27, 27), 1, genIDD, GrReducedClip::InitialState::kAllOut, IXYWH(50, 50, 26, 26)}, |
| |
| // Other tests: |
| { XYWH(0, 0, 100, 100), 4, genIDD, GrReducedClip::InitialState::kAllOut, stackBounds }, |
| |
| // Rect in the middle, touches none (so should not be drawn) |
| { XYWH(26, 26, 24, 24), 0, SkClipStack::kInvalidGenID, GrReducedClip::InitialState::kAllOut, SkIRect::MakeEmpty() }, |
| |
| // Rect in the middle, touches all the rects. GenID is the last rect. |
| { XYWH(24, 24, 27, 27), 4, genIDD, GrReducedClip::InitialState::kAllOut, IXYWH(24, 24, 27, 27) }, |
| }; |
| |
| #undef XYWH |
| #undef IXYWH |
| sk_sp<GrDirectContext> context = GrDirectContext::MakeMock(nullptr); |
| const GrCaps* caps = context->priv().caps(); |
| |
| for (size_t i = 0; i < SK_ARRAY_COUNT(testCases); ++i) { |
| const GrReducedClip reduced(stack, testCases[i].testBounds, caps); |
| REPORTER_ASSERT(reporter, reduced.maskElements().count() == |
| testCases[i].reducedClipCount); |
| if (reduced.maskElements().count()) { |
| REPORTER_ASSERT(reporter, reduced.maskGenID() == testCases[i].reducedGenID); |
| } |
| REPORTER_ASSERT(reporter, reduced.initialState() == testCases[i].initialState); |
| |
| bool expectsScissor = !testCases[i].clipIRect.isEmpty(); |
| REPORTER_ASSERT(reporter, expectsScissor == reduced.hasScissor()); |
| if (expectsScissor) { |
| REPORTER_ASSERT(reporter, reduced.scissor() == testCases[i].clipIRect); |
| } |
| } |
| } |
| } |
| |
| static void test_reduced_clip_stack_no_aa_crash(skiatest::Reporter* reporter) { |
| SkClipStack stack; |
| stack.clipDevRect(SkIRect::MakeXYWH(0, 0, 100, 100), kReplace_SkClipOp); |
| stack.clipDevRect(SkIRect::MakeXYWH(0, 0, 50, 50), kReplace_SkClipOp); |
| SkRect bounds = SkRect::MakeXYWH(0, 0, 100, 100); |
| |
| sk_sp<GrDirectContext> context = GrDirectContext::MakeMock(nullptr); |
| const GrCaps* caps = context->priv().caps(); |
| |
| // At the time, this would crash. |
| const GrReducedClip reduced(stack, bounds, caps); |
| REPORTER_ASSERT(reporter, reduced.maskElements().isEmpty()); |
| } |
| |
| enum class ClipMethod { |
| kSkipDraw, |
| kIgnoreClip, |
| kScissor, |
| kAAElements |
| }; |
| |
| static void test_aa_query(skiatest::Reporter* reporter, const SkString& testName, |
| const SkClipStack& stack, const SkMatrix& queryXform, |
| const SkRect& preXformQuery, ClipMethod expectedMethod, |
| int numExpectedElems = 0) { |
| sk_sp<GrDirectContext> context = GrDirectContext::MakeMock(nullptr); |
| const GrCaps* caps = context->priv().caps(); |
| |
| SkRect queryBounds; |
| queryXform.mapRect(&queryBounds, preXformQuery); |
| const GrReducedClip reduced(stack, queryBounds, caps); |
| |
| SkClipStack::BoundsType stackBoundsType; |
| SkRect stackBounds; |
| stack.getBounds(&stackBounds, &stackBoundsType); |
| |
| switch (expectedMethod) { |
| case ClipMethod::kSkipDraw: |
| SkASSERT(0 == numExpectedElems); |
| REPORTER_ASSERT(reporter, reduced.maskElements().isEmpty(), testName.c_str()); |
| REPORTER_ASSERT(reporter, |
| GrReducedClip::InitialState::kAllOut == reduced.initialState(), |
| testName.c_str()); |
| return; |
| case ClipMethod::kIgnoreClip: |
| SkASSERT(0 == numExpectedElems); |
| REPORTER_ASSERT( |
| reporter, |
| !reduced.hasScissor() || GrClip::IsInsideClip(reduced.scissor(), queryBounds), |
| testName.c_str()); |
| REPORTER_ASSERT(reporter, reduced.maskElements().isEmpty(), testName.c_str()); |
| REPORTER_ASSERT(reporter, |
| GrReducedClip::InitialState::kAllIn == reduced.initialState(), |
| testName.c_str()); |
| return; |
| case ClipMethod::kScissor: { |
| SkASSERT(SkClipStack::kNormal_BoundsType == stackBoundsType); |
| SkASSERT(0 == numExpectedElems); |
| SkIRect expectedScissor; |
| stackBounds.round(&expectedScissor); |
| REPORTER_ASSERT(reporter, reduced.maskElements().isEmpty(), testName.c_str()); |
| REPORTER_ASSERT(reporter, reduced.hasScissor(), testName.c_str()); |
| REPORTER_ASSERT(reporter, expectedScissor == reduced.scissor(), testName.c_str()); |
| REPORTER_ASSERT(reporter, |
| GrReducedClip::InitialState::kAllIn == reduced.initialState(), |
| testName.c_str()); |
| return; |
| } |
| case ClipMethod::kAAElements: { |
| SkIRect expectedClipIBounds = GrClip::GetPixelIBounds(queryBounds); |
| if (SkClipStack::kNormal_BoundsType == stackBoundsType) { |
| SkAssertResult(expectedClipIBounds.intersect(GrClip::GetPixelIBounds(stackBounds))); |
| } |
| REPORTER_ASSERT(reporter, numExpectedElems == reduced.maskElements().count(), |
| testName.c_str()); |
| REPORTER_ASSERT(reporter, reduced.hasScissor(), testName.c_str()); |
| REPORTER_ASSERT(reporter, expectedClipIBounds == reduced.scissor(), testName.c_str()); |
| REPORTER_ASSERT(reporter, |
| reduced.maskElements().isEmpty() || reduced.maskRequiresAA(), |
| testName.c_str()); |
| break; |
| } |
| } |
| } |
| |
| static void test_reduced_clip_stack_aa(skiatest::Reporter* reporter) { |
| constexpr SkScalar IL = 2, IT = 1, IR = 6, IB = 7; // Pixel aligned rect. |
| constexpr SkScalar L = 2.2f, T = 1.7f, R = 5.8f, B = 7.3f; // Generic rect. |
| constexpr SkScalar l = 3.3f, t = 2.8f, r = 4.7f, b = 6.2f; // Small rect contained in R. |
| |
| SkRect alignedRect = {IL, IT, IR, IB}; |
| SkRect rect = {L, T, R, B}; |
| SkRect innerRect = {l, t, r, b}; |
| |
| SkMatrix m; |
| m.setIdentity(); |
| |
| constexpr SkScalar kMinScale = 2.0001f; |
| constexpr SkScalar kMaxScale = 3; |
| constexpr int kNumIters = 8; |
| |
| SkString name; |
| SkRandom rand; |
| |
| for (int i = 0; i < kNumIters; ++i) { |
| // Pixel-aligned rect (iior=true). |
| name.printf("Pixel-aligned rect test, iter %i", i); |
| SkClipStack stack; |
| stack.clipRect(alignedRect, SkMatrix::I(), kIntersect_SkClipOp, true); |
| test_aa_query(reporter, name, stack, m, {IL, IT, IR, IB}, ClipMethod::kIgnoreClip); |
| test_aa_query(reporter, name, stack, m, {IL, IT-1, IR, IT}, ClipMethod::kSkipDraw); |
| test_aa_query(reporter, name, stack, m, {IL, IT-2, IR, IB}, ClipMethod::kScissor); |
| |
| // Rect (iior=true). |
| name.printf("Rect test, iter %i", i); |
| stack.reset(); |
| stack.clipRect(rect, SkMatrix::I(), kIntersect_SkClipOp, true); |
| test_aa_query(reporter, name, stack, m, {L, T, R, B}, ClipMethod::kIgnoreClip); |
| test_aa_query(reporter, name, stack, m, {L-.1f, T, L, B}, ClipMethod::kSkipDraw); |
| test_aa_query(reporter, name, stack, m, {L-.1f, T, L+.1f, B}, ClipMethod::kAAElements, 1); |
| |
| // Difference rect (iior=false, inside-out bounds). |
| name.printf("Difference rect test, iter %i", i); |
| stack.reset(); |
| stack.clipRect(rect, SkMatrix::I(), kDifference_SkClipOp, true); |
| test_aa_query(reporter, name, stack, m, {L, T, R, B}, ClipMethod::kSkipDraw); |
| test_aa_query(reporter, name, stack, m, {L, T-.1f, R, T}, ClipMethod::kIgnoreClip); |
| test_aa_query(reporter, name, stack, m, {L, T-.1f, R, T+.1f}, ClipMethod::kAAElements, 1); |
| |
| // Complex clip (iior=false, normal bounds). |
| name.printf("Complex clip test, iter %i", i); |
| stack.reset(); |
| stack.clipRect(rect, SkMatrix::I(), kIntersect_SkClipOp, true); |
| stack.clipRect(innerRect, SkMatrix::I(), kXOR_SkClipOp, true); |
| test_aa_query(reporter, name, stack, m, {l, t, r, b}, ClipMethod::kSkipDraw); |
| test_aa_query(reporter, name, stack, m, {r-.1f, t, R, b}, ClipMethod::kAAElements, 1); |
| test_aa_query(reporter, name, stack, m, {r-.1f, t, R+.1f, b}, ClipMethod::kAAElements, 2); |
| test_aa_query(reporter, name, stack, m, {r, t, R+.1f, b}, ClipMethod::kAAElements, 1); |
| test_aa_query(reporter, name, stack, m, {r, t, R, b}, ClipMethod::kIgnoreClip); |
| test_aa_query(reporter, name, stack, m, {R, T, R+.1f, B}, ClipMethod::kSkipDraw); |
| |
| // Complex clip where outer rect is pixel aligned (iior=false, normal bounds). |
| name.printf("Aligned Complex clip test, iter %i", i); |
| stack.reset(); |
| stack.clipRect(alignedRect, SkMatrix::I(), kIntersect_SkClipOp, true); |
| stack.clipRect(innerRect, SkMatrix::I(), kXOR_SkClipOp, true); |
| test_aa_query(reporter, name, stack, m, {l, t, r, b}, ClipMethod::kSkipDraw); |
| test_aa_query(reporter, name, stack, m, {l, b-.1f, r, IB}, ClipMethod::kAAElements, 1); |
| test_aa_query(reporter, name, stack, m, {l, b-.1f, r, IB+.1f}, ClipMethod::kAAElements, 1); |
| test_aa_query(reporter, name, stack, m, {l, b, r, IB+.1f}, ClipMethod::kAAElements, 0); |
| test_aa_query(reporter, name, stack, m, {l, b, r, IB}, ClipMethod::kIgnoreClip); |
| test_aa_query(reporter, name, stack, m, {IL, IB, IR, IB+.1f}, ClipMethod::kSkipDraw); |
| |
| // Apply random transforms and try again. This ensures the clip stack reduction is hardened |
| // against FP rounding error. |
| SkScalar sx = rand.nextRangeScalar(kMinScale, kMaxScale); |
| sx = SkScalarFloorToScalar(sx * alignedRect.width()) / alignedRect.width(); |
| SkScalar sy = rand.nextRangeScalar(kMinScale, kMaxScale); |
| sy = SkScalarFloorToScalar(sy * alignedRect.height()) / alignedRect.height(); |
| SkScalar tx = SkScalarRoundToScalar(sx * alignedRect.x()) - sx * alignedRect.x(); |
| SkScalar ty = SkScalarRoundToScalar(sy * alignedRect.y()) - sy * alignedRect.y(); |
| |
| SkMatrix xform = SkMatrix::Scale(sx, sy); |
| xform.postTranslate(tx, ty); |
| xform.mapRect(&alignedRect); |
| xform.mapRect(&rect); |
| xform.mapRect(&innerRect); |
| m.postConcat(xform); |
| } |
| } |
| |
| static void test_tiny_query_bounds_assertion_bug(skiatest::Reporter* reporter) { |
| // https://bugs.chromium.org/p/skia/issues/detail?id=5990 |
| const SkRect clipBounds = SkRect::MakeXYWH(1.5f, 100, 1000, 1000); |
| |
| SkClipStack rectStack; |
| rectStack.clipRect(clipBounds, SkMatrix::I(), kIntersect_SkClipOp, true); |
| |
| SkPath clipPath; |
| clipPath.moveTo(clipBounds.left(), clipBounds.top()); |
| clipPath.quadTo(clipBounds.right(), clipBounds.top(), |
| clipBounds.right(), clipBounds.bottom()); |
| clipPath.quadTo(clipBounds.left(), clipBounds.bottom(), |
| clipBounds.left(), clipBounds.top()); |
| SkClipStack pathStack; |
| pathStack.clipPath(clipPath, SkMatrix::I(), kIntersect_SkClipOp, true); |
| |
| sk_sp<GrDirectContext> context = GrDirectContext::MakeMock(nullptr); |
| const GrCaps* caps = context->priv().caps(); |
| |
| for (const SkClipStack& stack : {rectStack, pathStack}) { |
| for (SkRect queryBounds : {SkRect::MakeXYWH(53, 60, GrClip::kBoundsTolerance, 1000), |
| SkRect::MakeXYWH(53, 60, GrClip::kBoundsTolerance/2, 1000), |
| SkRect::MakeXYWH(53, 160, 1000, GrClip::kBoundsTolerance), |
| SkRect::MakeXYWH(53, 160, 1000, GrClip::kBoundsTolerance/2)}) { |
| const GrReducedClip reduced(stack, queryBounds, caps); |
| REPORTER_ASSERT(reporter, !reduced.hasScissor()); |
| REPORTER_ASSERT(reporter, reduced.maskElements().isEmpty()); |
| REPORTER_ASSERT(reporter, |
| GrReducedClip::InitialState::kAllOut == reduced.initialState()); |
| } |
| } |
| } |
| |
| 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], kIntersect_SkClipOp); |
| } |
| |
| // 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, kIntersect_SkClipOp == 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_reduced_clip_stack(reporter, /* clipShader */ false); |
| test_reduced_clip_stack(reporter, /* clipShader */ true); |
| test_reduced_clip_stack_genid(reporter); |
| test_reduced_clip_stack_no_aa_crash(reporter); |
| test_reduced_clip_stack_aa(reporter); |
| test_tiny_query_bounds_assertion_bug(reporter); |
| test_is_rrect_deep_rect_stack(reporter); |
| } |
| |
| ////////////////////////////////////////////////////////////////////////////// |
| |
| sk_sp<GrTextureProxy> GrClipStackClip::testingOnly_createClipMask( |
| GrRecordingContext* context) const { |
| const GrReducedClip reducedClip(*fStack, SkRect::MakeWH(512, 512), nullptr); |
| return this->createSoftwareClipMask(context, reducedClip, nullptr).asTextureProxyRef(); |
| } |
| |
| // Verify that clip masks are freed up when the clip state that generated them goes away. |
| DEF_GPUTEST_FOR_ALL_CONTEXTS(ClipMaskCache, reporter, ctxInfo) { |
| // This test uses resource key tags which only function in debug builds. |
| #ifdef SK_DEBUG |
| auto context = ctxInfo.directContext(); |
| SkClipStack stack; |
| |
| SkPath path; |
| path.addCircle(10, 10, 8); |
| path.addCircle(15, 15, 8); |
| path.setFillType(SkPathFillType::kEvenOdd); |
| |
| SkIRect stackBounds = path.getBounds().roundOut(); |
| |
| static const char* kTag = GrClipStackClip::kMaskTestTag; |
| GrResourceCache* cache = context->priv().getResourceCache(); |
| |
| static constexpr int kN = 5; |
| |
| for (int i = 0; i < kN; ++i) { |
| SkMatrix m; |
| m.setTranslate(0.5, 0.5); |
| stack.save(); |
| stack.clipPath(path, m, SkClipOp::kIntersect, true); |
| sk_sp<GrTextureProxy> mask = |
| GrClipStackClip(stackBounds.size(), &stack).testingOnly_createClipMask(context); |
| mask->instantiate(context->priv().resourceProvider()); |
| GrTexture* tex = mask->peekTexture(); |
| REPORTER_ASSERT(reporter, 0 == strcmp(tex->getUniqueKey().tag(), kTag)); |
| // Make sure mask isn't pinned in cache. |
| mask.reset(nullptr); |
| context->flushAndSubmit(); |
| REPORTER_ASSERT(reporter, i + 1 == cache->countUniqueKeysWithTag(kTag)); |
| } |
| |
| for (int i = 0; i < kN; ++i) { |
| stack.restore(); |
| cache->purgeAsNeeded(); |
| REPORTER_ASSERT(reporter, kN - (i + 1) == cache->countUniqueKeysWithTag(kTag)); |
| } |
| #endif |
| } |