| /* |
| * 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/SkMatrix.h" |
| #include "include/core/SkPath.h" |
| #include "include/core/SkPathTypes.h" |
| #include "include/core/SkPoint.h" |
| #include "include/core/SkRRect.h" |
| #include "include/core/SkRect.h" |
| #include "include/core/SkRegion.h" |
| #include "include/core/SkScalar.h" |
| #include "include/core/SkTypes.h" |
| #include "include/private/base/SkDebug.h" |
| #include "src/base/SkAutoMalloc.h" |
| #include "src/base/SkRandom.h" |
| #include "src/core/SkScan.h" |
| #include "tests/Test.h" |
| |
| #include <array> |
| #include <cstddef> |
| #include <cstdint> |
| |
| static void Union(SkRegion* rgn, const SkIRect& rect) { |
| rgn->op(rect, SkRegion::kUnion_Op); |
| } |
| |
| #define TEST_NO_INTERSECT(rgn, rect) REPORTER_ASSERT(reporter, !rgn.intersects(rect)) |
| #define TEST_INTERSECT(rgn, rect) REPORTER_ASSERT(reporter, rgn.intersects(rect)) |
| #define TEST_NO_CONTAINS(rgn, rect) REPORTER_ASSERT(reporter, !rgn.contains(rect)) |
| |
| // inspired by http://code.google.com/p/skia/issues/detail?id=958 |
| // |
| static void test_fromchrome(skiatest::Reporter* reporter) { |
| SkRegion r; |
| Union(&r, SkIRect::MakeXYWH(0, 0, 1, 1)); |
| TEST_NO_INTERSECT(r, SkIRect::MakeXYWH(0, 0, 0, 0)); |
| TEST_INTERSECT(r, SkIRect::MakeXYWH(0, 0, 2, 2)); |
| TEST_INTERSECT(r, SkIRect::MakeXYWH(-1, 0, 2, 2)); |
| TEST_INTERSECT(r, SkIRect::MakeXYWH(-1, -1, 2, 2)); |
| TEST_INTERSECT(r, SkIRect::MakeXYWH(0, -1, 2, 2)); |
| TEST_INTERSECT(r, SkIRect::MakeXYWH(-1, -1, 3, 3)); |
| |
| Union(&r, SkIRect::MakeXYWH(0, 0, 3, 3)); |
| Union(&r, SkIRect::MakeXYWH(10, 0, 3, 3)); |
| Union(&r, SkIRect::MakeXYWH(0, 10, 13, 3)); |
| TEST_INTERSECT(r, SkIRect::MakeXYWH(-1, -1, 2, 2)); |
| TEST_INTERSECT(r, SkIRect::MakeXYWH(2, -1, 2, 2)); |
| TEST_INTERSECT(r, SkIRect::MakeXYWH(2, 2, 2, 2)); |
| TEST_INTERSECT(r, SkIRect::MakeXYWH(-1, 2, 2, 2)); |
| |
| TEST_INTERSECT(r, SkIRect::MakeXYWH(9, -1, 2, 2)); |
| TEST_INTERSECT(r, SkIRect::MakeXYWH(12, -1, 2, 2)); |
| TEST_INTERSECT(r, SkIRect::MakeXYWH(12, 2, 2, 2)); |
| TEST_INTERSECT(r, SkIRect::MakeXYWH(9, 2, 2, 2)); |
| |
| TEST_INTERSECT(r, SkIRect::MakeXYWH(0, -1, 13, 5)); |
| TEST_INTERSECT(r, SkIRect::MakeXYWH(1, -1, 11, 5)); |
| TEST_INTERSECT(r, SkIRect::MakeXYWH(2, -1, 9, 5)); |
| TEST_INTERSECT(r, SkIRect::MakeXYWH(2, -1, 8, 5)); |
| TEST_INTERSECT(r, SkIRect::MakeXYWH(3, -1, 8, 5)); |
| |
| TEST_INTERSECT(r, SkIRect::MakeXYWH(0, 1, 13, 1)); |
| TEST_INTERSECT(r, SkIRect::MakeXYWH(1, 1, 11, 1)); |
| TEST_INTERSECT(r, SkIRect::MakeXYWH(2, 1, 9, 1)); |
| TEST_INTERSECT(r, SkIRect::MakeXYWH(2, 1, 8, 1)); |
| TEST_INTERSECT(r, SkIRect::MakeXYWH(3, 1, 8, 1)); |
| |
| TEST_INTERSECT(r, SkIRect::MakeXYWH(0, 0, 13, 13)); |
| TEST_INTERSECT(r, SkIRect::MakeXYWH(0, 1, 13, 11)); |
| TEST_INTERSECT(r, SkIRect::MakeXYWH(0, 2, 13, 9)); |
| TEST_INTERSECT(r, SkIRect::MakeXYWH(0, 2, 13, 8)); |
| |
| |
| // These test SkRegion::contains(Rect) and SkRegion::contains(Region) |
| |
| SkRegion container; |
| Union(&container, SkIRect::MakeXYWH(0, 0, 40, 20)); |
| Union(&container, SkIRect::MakeXYWH(30, 20, 10, 20)); |
| TEST_NO_CONTAINS(container, SkIRect::MakeXYWH(0, 0, 10, 39)); |
| TEST_NO_CONTAINS(container, SkIRect::MakeXYWH(29, 0, 10, 39)); |
| |
| { |
| SkRegion rgn; |
| Union(&rgn, SkIRect::MakeXYWH(0, 0, 10, 10)); |
| Union(&rgn, SkIRect::MakeLTRB(5, 10, 20, 20)); |
| TEST_INTERSECT(rgn, SkIRect::MakeXYWH(15, 0, 5, 11)); |
| } |
| } |
| |
| static void test_empties(skiatest::Reporter* reporter) { |
| SkRegion valid(SkIRect::MakeWH(10, 10)); |
| SkRegion empty, empty2; |
| |
| REPORTER_ASSERT(reporter, empty.isEmpty()); |
| REPORTER_ASSERT(reporter, !valid.isEmpty()); |
| |
| // test intersects |
| REPORTER_ASSERT(reporter, !empty.intersects(empty2)); |
| REPORTER_ASSERT(reporter, !valid.intersects(empty)); |
| |
| // test contains |
| REPORTER_ASSERT(reporter, !empty.contains(empty2)); |
| REPORTER_ASSERT(reporter, !valid.contains(empty)); |
| REPORTER_ASSERT(reporter, !empty.contains(valid)); |
| |
| SkPath emptyPath; |
| emptyPath.moveTo(1, 5); |
| emptyPath.close(); |
| SkRegion openClip; |
| openClip.setRect({-16000, -16000, 16000, 16000}); |
| empty.setPath(emptyPath, openClip); // should not assert |
| } |
| |
| enum { |
| W = 256, |
| H = 256 |
| }; |
| |
| static SkIRect randRect(SkRandom& rand) { |
| int x = rand.nextU() % W; |
| int y = rand.nextU() % H; |
| int w = rand.nextU() % W; |
| int h = rand.nextU() % H; |
| return SkIRect::MakeXYWH(x, y, w >> 1, h >> 1); |
| } |
| |
| static void randRgn(SkRandom& rand, SkRegion* rgn, int n) { |
| rgn->setEmpty(); |
| for (int i = 0; i < n; ++i) { |
| rgn->op(randRect(rand), SkRegion::kUnion_Op); |
| } |
| } |
| |
| static bool slow_contains(const SkRegion& outer, const SkRegion& inner) { |
| SkRegion tmp; |
| tmp.op(outer, inner, SkRegion::kUnion_Op); |
| return outer == tmp; |
| } |
| |
| static bool slow_contains(const SkRegion& outer, const SkIRect& r) { |
| SkRegion tmp; |
| tmp.op(outer, SkRegion(r), SkRegion::kUnion_Op); |
| return outer == tmp; |
| } |
| |
| static bool slow_intersects(const SkRegion& outer, const SkRegion& inner) { |
| SkRegion tmp; |
| return tmp.op(outer, inner, SkRegion::kIntersect_Op); |
| } |
| |
| static void test_contains_iter(skiatest::Reporter* reporter, const SkRegion& rgn) { |
| SkRegion::Iterator iter(rgn); |
| while (!iter.done()) { |
| SkIRect r = iter.rect(); |
| REPORTER_ASSERT(reporter, rgn.contains(r)); |
| r.inset(-1, -1); |
| REPORTER_ASSERT(reporter, !rgn.contains(r)); |
| iter.next(); |
| } |
| } |
| |
| static void contains_proc(skiatest::Reporter* reporter, |
| const SkRegion& a, const SkRegion& b) { |
| // test rgn |
| bool c0 = a.contains(b); |
| bool c1 = slow_contains(a, b); |
| REPORTER_ASSERT(reporter, c0 == c1); |
| |
| // test rect |
| SkIRect r = a.getBounds(); |
| r.inset(r.width()/4, r.height()/4); |
| c0 = a.contains(r); |
| c1 = slow_contains(a, r); |
| REPORTER_ASSERT(reporter, c0 == c1); |
| |
| test_contains_iter(reporter, a); |
| test_contains_iter(reporter, b); |
| } |
| |
| static void test_intersects_iter(skiatest::Reporter* reporter, const SkRegion& rgn) { |
| SkRegion::Iterator iter(rgn); |
| while (!iter.done()) { |
| SkIRect r = iter.rect(); |
| REPORTER_ASSERT(reporter, rgn.intersects(r)); |
| r.inset(-1, -1); |
| REPORTER_ASSERT(reporter, rgn.intersects(r)); |
| iter.next(); |
| } |
| } |
| |
| static void intersects_proc(skiatest::Reporter* reporter, |
| const SkRegion& a, const SkRegion& b) { |
| bool c0 = a.intersects(b); |
| bool c1 = slow_intersects(a, b); |
| REPORTER_ASSERT(reporter, c0 == c1); |
| |
| test_intersects_iter(reporter, a); |
| test_intersects_iter(reporter, b); |
| } |
| |
| static void test_proc(skiatest::Reporter* reporter, |
| void (*proc)(skiatest::Reporter*, |
| const SkRegion& a, const SkRegion&)) { |
| SkRandom rand; |
| for (int i = 0; i < 10000; ++i) { |
| SkRegion outer; |
| randRgn(rand, &outer, 8); |
| SkRegion inner; |
| randRgn(rand, &inner, 2); |
| proc(reporter, outer, inner); |
| } |
| } |
| |
| static void rand_rect(SkIRect* rect, SkRandom& rand) { |
| int bits = 6; |
| int shift = 32 - bits; |
| rect->setLTRB(rand.nextU() >> shift, rand.nextU() >> shift, |
| rand.nextU() >> shift, rand.nextU() >> shift); |
| rect->sort(); |
| } |
| |
| static bool test_rects(const SkIRect rect[], int count) { |
| SkRegion rgn0, rgn1; |
| |
| for (int i = 0; i < count; i++) { |
| rgn0.op(rect[i], SkRegion::kUnion_Op); |
| } |
| rgn1.setRects(rect, count); |
| |
| if (rgn0 != rgn1) { |
| SkDebugf("\n"); |
| for (int i = 0; i < count; i++) { |
| SkDebugf(" { %d, %d, %d, %d },\n", |
| rect[i].fLeft, rect[i].fTop, |
| rect[i].fRight, rect[i].fBottom); |
| } |
| SkDebugf("\n"); |
| return false; |
| } |
| return true; |
| } |
| |
| DEF_TEST(Region, reporter) { |
| const SkIRect r2[] = { |
| { 0, 0, 1, 1 }, |
| { 2, 2, 3, 3 }, |
| }; |
| REPORTER_ASSERT(reporter, test_rects(r2, std::size(r2))); |
| |
| const SkIRect rects[] = { |
| { 0, 0, 1, 2 }, |
| { 2, 1, 3, 3 }, |
| { 4, 0, 5, 1 }, |
| { 6, 0, 7, 4 }, |
| }; |
| REPORTER_ASSERT(reporter, test_rects(rects, std::size(rects))); |
| |
| SkRandom rand; |
| for (int i = 0; i < 1000; i++) { |
| SkRegion rgn0, rgn1; |
| |
| const int N = 8; |
| SkIRect rect[N]; |
| for (int j = 0; j < N; j++) { |
| rand_rect(&rect[j], rand); |
| } |
| REPORTER_ASSERT(reporter, test_rects(rect, N)); |
| } |
| |
| test_proc(reporter, contains_proc); |
| test_proc(reporter, intersects_proc); |
| test_empties(reporter); |
| test_fromchrome(reporter); |
| } |
| |
| // Test that writeToMemory reports the same number of bytes whether there was a |
| // buffer to write to or not. |
| static void test_write(const SkRegion& region, skiatest::Reporter* r) { |
| const size_t bytesNeeded = region.writeToMemory(nullptr); |
| SkAutoMalloc storage(bytesNeeded); |
| const size_t bytesWritten = region.writeToMemory(storage.get()); |
| REPORTER_ASSERT(r, bytesWritten == bytesNeeded); |
| |
| // Also check that the bytes are meaningful. |
| SkRegion copy; |
| REPORTER_ASSERT(r, copy.readFromMemory(storage.get(), bytesNeeded)); |
| REPORTER_ASSERT(r, region == copy); |
| } |
| |
| DEF_TEST(Region_writeToMemory, r) { |
| // Test an empty region. |
| SkRegion region; |
| REPORTER_ASSERT(r, region.isEmpty()); |
| test_write(region, r); |
| |
| // Test a rectangular region |
| bool nonEmpty = region.setRect({0, 0, 50, 50}); |
| REPORTER_ASSERT(r, nonEmpty); |
| REPORTER_ASSERT(r, region.isRect()); |
| test_write(region, r); |
| |
| // Test a complex region |
| nonEmpty = region.op({50, 50, 100, 100}, SkRegion::kUnion_Op); |
| REPORTER_ASSERT(r, nonEmpty); |
| REPORTER_ASSERT(r, region.isComplex()); |
| test_write(region, r); |
| |
| SkRegion complexRegion; |
| Union(&complexRegion, SkIRect::MakeXYWH(0, 0, 1, 1)); |
| Union(&complexRegion, SkIRect::MakeXYWH(0, 0, 3, 3)); |
| Union(&complexRegion, SkIRect::MakeXYWH(10, 0, 3, 3)); |
| Union(&complexRegion, SkIRect::MakeXYWH(0, 10, 13, 3)); |
| test_write(complexRegion, r); |
| |
| Union(&complexRegion, SkIRect::MakeXYWH(10, 20, 3, 3)); |
| Union(&complexRegion, SkIRect::MakeXYWH(0, 20, 3, 3)); |
| test_write(complexRegion, r); |
| } |
| |
| DEF_TEST(Region_readFromMemory_bad, r) { |
| // These assume what our binary format is: conceivably we could change it |
| // and might need to remove or change some of these tests. |
| SkRegion region; |
| |
| { |
| // invalid boundary rectangle |
| int32_t data[5] = {0, 4, 4, 8, 2}; |
| REPORTER_ASSERT(r, 0 == region.readFromMemory(data, sizeof(data))); |
| } |
| // Region Layout, Serialized Format: |
| // COUNT LEFT TOP RIGHT BOTTOM Y_SPAN_COUNT TOTAL_INTERVAL_COUNT |
| // Top ( Bottom Span_Interval_Count ( Left Right )* Sentinel )+ Sentinel |
| { |
| // Example of valid data |
| int32_t data[] = {9, 0, 0, 10, 10, 1, 2, 0, 10, 2, 0, 4, 6, 10, |
| 2147483647, 2147483647}; |
| REPORTER_ASSERT(r, 0 != region.readFromMemory(data, sizeof(data))); |
| } |
| { |
| // Example of valid data with 4 intervals |
| int32_t data[] = {19, 0, 0, 30, 30, 3, 4, 0, 10, 2, 0, 10, 20, 30, |
| 2147483647, 20, 0, 2147483647, 30, 2, 0, 10, 20, 30, |
| 2147483647, 2147483647}; |
| REPORTER_ASSERT(r, 0 != region.readFromMemory(data, sizeof(data))); |
| } |
| { |
| // Short count |
| int32_t data[] = {8, 0, 0, 10, 10, 1, 2, 0, 10, 2, 0, 4, 6, 10, |
| 2147483647, 2147483647}; |
| REPORTER_ASSERT(r, 0 == region.readFromMemory(data, sizeof(data))); |
| } |
| { |
| // bounds don't match |
| int32_t data[] = {9, 0, 0, 10, 11, 1, 2, 0, 10, 2, 0, 4, 6, 10, |
| 2147483647, 2147483647}; |
| REPORTER_ASSERT(r, 0 == region.readFromMemory(data, sizeof(data))); |
| } |
| { |
| // bad yspan count |
| int32_t data[] = {9, 0, 0, 10, 10, 2, 2, 0, 10, 2, 0, 4, 6, 10, |
| 2147483647, 2147483647}; |
| REPORTER_ASSERT(r, 0 == region.readFromMemory(data, sizeof(data))); |
| } |
| { |
| // bad int count |
| int32_t data[] = {9, 0, 0, 10, 10, 1, 3, 0, 10, 2, 0, 4, 6, 10, |
| 2147483647, 2147483647}; |
| REPORTER_ASSERT(r, 0 == region.readFromMemory(data, sizeof(data))); |
| } |
| { |
| // bad final sentinal |
| int32_t data[] = {9, 0, 0, 10, 10, 1, 2, 0, 10, 2, 0, 4, 6, 10, |
| 2147483647, -1}; |
| REPORTER_ASSERT(r, 0 == region.readFromMemory(data, sizeof(data))); |
| } |
| { |
| // bad row sentinal |
| int32_t data[] = {9, 0, 0, 10, 10, 1, 2, 0, 10, 2, 0, 4, 6, 10, |
| -1, 2147483647}; |
| REPORTER_ASSERT(r, 0 == region.readFromMemory(data, sizeof(data))); |
| } |
| { |
| // starts with empty yspan |
| int32_t data[] = {12, 0, 0, 10, 10, 2, 2, -5, 0, 0, 2147483647, 10, |
| 2, 0, 4, 6, 10, 2147483647, 2147483647}; |
| REPORTER_ASSERT(r, 0 == region.readFromMemory(data, sizeof(data))); |
| } |
| { |
| // ends with empty yspan |
| int32_t data[] = {12, 0, 0, 10, 10, 2, 2, 0, 10, 2, 0, 4, 6, 10, |
| 2147483647, 15, 0, 2147483647, 2147483647}; |
| REPORTER_ASSERT(r, 0 == region.readFromMemory(data, sizeof(data))); |
| } |
| { |
| // y intervals out of order |
| int32_t data[] = {19, 0, -20, 30, 10, 3, 4, 0, 10, 2, 0, 10, 20, 30, |
| 2147483647, -20, 0, 2147483647, -10, 2, 0, 10, 20, 30, |
| 2147483647, 2147483647}; |
| REPORTER_ASSERT(r, 0 == region.readFromMemory(data, sizeof(data))); |
| } |
| { |
| // x intervals out of order |
| int32_t data[] = {9, 0, 0, 10, 10, 1, 2, 0, 10, 2, 6, 10, 0, 4, |
| 2147483647, 2147483647}; |
| REPORTER_ASSERT(r, 0 == region.readFromMemory(data, sizeof(data))); |
| } |
| } |
| |
| DEF_TEST(region_toobig, reporter) { |
| const int big = 1 << 30; |
| const SkIRect neg = SkIRect::MakeXYWH(-big, -big, 10, 10); |
| const SkIRect pos = SkIRect::MakeXYWH( big, big, 10, 10); |
| |
| REPORTER_ASSERT(reporter, !neg.isEmpty()); |
| REPORTER_ASSERT(reporter, !pos.isEmpty()); |
| |
| SkRegion negR(neg); |
| SkRegion posR(pos); |
| |
| REPORTER_ASSERT(reporter, !negR.isEmpty()); |
| REPORTER_ASSERT(reporter, !posR.isEmpty()); |
| |
| SkRegion rgn; |
| rgn.op(negR, posR, SkRegion::kUnion_Op); |
| |
| // If we union those to rectangles, the resulting coordinates span more than int32_t, so |
| // we must mark the region as empty. |
| REPORTER_ASSERT(reporter, rgn.isEmpty()); |
| } |
| |
| DEF_TEST(region_inverse_union_skbug_7491, reporter) { |
| SkPath path; |
| path.setFillType(SkPathFillType::kInverseWinding); |
| path.moveTo(10, 20); path.lineTo(10, 30); path.lineTo(10.1f, 10); path.close(); |
| |
| SkRegion clip; |
| clip.op(SkIRect::MakeLTRB(10, 10, 15, 20), SkRegion::kUnion_Op); |
| clip.op(SkIRect::MakeLTRB(20, 10, 25, 20), SkRegion::kUnion_Op); |
| |
| SkRegion rgn; |
| rgn.setPath(path, clip); |
| |
| REPORTER_ASSERT(reporter, clip == rgn); |
| } |
| |
| DEF_TEST(giant_path_region, reporter) { |
| const SkScalar big = 32767; |
| SkPath path; |
| path.moveTo(-big, 0); |
| path.quadTo(big, 0, big, big); |
| SkIRect ir = path.getBounds().round(); |
| SkRegion rgn; |
| rgn.setPath(path, SkRegion(ir)); |
| } |
| |
| DEF_TEST(rrect_region_crbug_850350, reporter) { |
| SkMatrix m; |
| m.reset(); |
| m[1] = 0.753662348f; |
| m[3] = 1.40079998E+20f; |
| |
| const SkPoint corners[] = { |
| { 2.65876e-19f, 0.0194088f }, |
| { 4896, 0.00114702f }, |
| { 0, 0 }, |
| { 0.00114702f, 0.00495333f }, |
| }; |
| SkRRect rrect; |
| rrect.setRectRadii({-8.72387e-31f, 1.29996e-38f, 4896, 1.125f}, corners); |
| |
| SkPath path; |
| path.addRRect(rrect); |
| path.transform(m); |
| |
| SkRegion rgn; |
| rgn.setPath(path, SkRegion{SkIRect{0, 0, 24, 24}}); |
| } |
| |
| DEF_TEST(region_bug_chromium_873051, reporter) { |
| SkRegion region; |
| REPORTER_ASSERT(reporter, region.setRect({0, 0, 0x7FFFFFFE, 0x7FFFFFFE})); |
| REPORTER_ASSERT(reporter, !region.setRect({0, 0, 0x7FFFFFFE, 0x7FFFFFFF})); |
| REPORTER_ASSERT(reporter, !region.setRect({0, 0, 0x7FFFFFFF, 0x7FFFFFFE})); |
| REPORTER_ASSERT(reporter, !region.setRect({0, 0, 0x7FFFFFFF, 0x7FFFFFFF})); |
| } |
| |
| DEF_TEST(region_empty_iter, reporter) { |
| SkRegion::Iterator emptyIter; |
| REPORTER_ASSERT(reporter, !emptyIter.rewind()); |
| REPORTER_ASSERT(reporter, emptyIter.done()); |
| auto eRect = emptyIter.rect(); |
| REPORTER_ASSERT(reporter, eRect.isEmpty()); |
| REPORTER_ASSERT(reporter, SkIRect::MakeEmpty() == eRect); |
| REPORTER_ASSERT(reporter, !emptyIter.rgn()); |
| |
| SkRegion region; |
| SkRegion::Iterator resetIter; |
| resetIter.reset(region); |
| REPORTER_ASSERT(reporter, resetIter.rewind()); |
| REPORTER_ASSERT(reporter, resetIter.done()); |
| auto rRect = resetIter.rect(); |
| REPORTER_ASSERT(reporter, rRect.isEmpty()); |
| REPORTER_ASSERT(reporter, SkIRect::MakeEmpty() == rRect); |
| REPORTER_ASSERT(reporter, resetIter.rgn()); |
| REPORTER_ASSERT(reporter, resetIter.rgn()->isEmpty()); |
| |
| SkRegion::Iterator iter(region); |
| REPORTER_ASSERT(reporter, iter.done()); |
| auto iRect = iter.rect(); |
| REPORTER_ASSERT(reporter, iRect.isEmpty()); |
| REPORTER_ASSERT(reporter, SkIRect::MakeEmpty() == iRect); |
| REPORTER_ASSERT(reporter, iter.rgn()); |
| REPORTER_ASSERT(reporter, iter.rgn()->isEmpty()); |
| |
| SkRegion::Cliperator clipIter(region, {0, 0, 100, 100}); |
| REPORTER_ASSERT(reporter, clipIter.done()); |
| auto cRect = clipIter.rect(); |
| REPORTER_ASSERT(reporter, cRect.isEmpty()); |
| REPORTER_ASSERT(reporter, SkIRect::MakeEmpty() == cRect); |
| |
| SkRegion::Spanerator spanIter(region, 0, 0, 100); |
| int left = 0, right = 0; |
| REPORTER_ASSERT(reporter, !spanIter.next(&left, &right)); |
| REPORTER_ASSERT(reporter, !left); |
| REPORTER_ASSERT(reporter, !right); |
| } |
| |
| DEF_TEST(region_very_large, reporter) { |
| SkIRect clipBounds = {-45000, -45000, 45000, 45000}; |
| REPORTER_ASSERT(reporter, SkScan::PathRequiresTiling(clipBounds)); |
| |
| // Create a path that is larger than the scan conversion limits of SkScan, which is internally |
| // used to convert a path to a region. |
| SkPath largePath = SkPath::RRect(SkRRect::MakeRectXY(SkRect::Make(clipBounds), 200.f, 200.f)); |
| |
| SkRegion largeRegion; |
| REPORTER_ASSERT(reporter, largeRegion.setPath(largePath, SkRegion{clipBounds})); |
| |
| // The path should have been converted successfully, so the corners of clipBounds should not be |
| // contained due to the path's rounded corners. |
| REPORTER_ASSERT(reporter, !largeRegion.contains(-44995, -44995)); |
| REPORTER_ASSERT(reporter, !largeRegion.contains(-44995, 44995)); |
| REPORTER_ASSERT(reporter, !largeRegion.contains( 44995, -44995)); |
| REPORTER_ASSERT(reporter, !largeRegion.contains( 44995, 44995)); |
| |
| // But these points should be within the rounded corners. |
| REPORTER_ASSERT(reporter, largeRegion.contains(-44600, -44600)); |
| REPORTER_ASSERT(reporter, largeRegion.contains(-44600, 44600)); |
| REPORTER_ASSERT(reporter, largeRegion.contains( 44600, -44600)); |
| REPORTER_ASSERT(reporter, largeRegion.contains( 44600, 44600)); |
| |
| // Make another path shaped like a D, so two corners will have its large radii and the other two |
| // will be rectangular and thus clipped by the original region. |
| static const SkVector kLargeRadii[4] = { {0.f, 0.f}, // TL |
| {2000.f, 2000.f}, // TR |
| {2000.f, 2000.f}, // BR |
| {0.f, 0.f}}; // BL |
| SkRRect largeRRect; |
| largeRRect.setRectRadii(SkRect::Make(clipBounds), kLargeRadii); |
| REPORTER_ASSERT(reporter, largeRegion.setPath(SkPath::RRect(largeRRect), SkRegion{largeRegion})); |
| |
| REPORTER_ASSERT(reporter, !largeRegion.contains(-44995, -44995)); |
| REPORTER_ASSERT(reporter, !largeRegion.contains(-44995, 44995)); |
| REPORTER_ASSERT(reporter, !largeRegion.contains( 44995, -44995)); |
| REPORTER_ASSERT(reporter, !largeRegion.contains( 44995, 44995)); |
| |
| REPORTER_ASSERT(reporter, largeRegion.contains(-44600, -44600)); |
| REPORTER_ASSERT(reporter, largeRegion.contains(-44600, 44600)); |
| // Right side has been clipped by an even larger corner radii |
| REPORTER_ASSERT(reporter, !largeRegion.contains( 44600, -44600)); |
| REPORTER_ASSERT(reporter, !largeRegion.contains( 44600, 44600)); |
| |
| // Now test that the very large path with a small clip also works |
| largePath = SkPath::RRect(SkRRect::MakeRectXY({0.f, 0.f, 45000.f, 45000.f}, 200.f, 200.f)); |
| SkRegion smallRegion; |
| REPORTER_ASSERT(reporter, smallRegion.setPath(largePath, SkRegion{{0, 0, 500, 500}})); |
| |
| REPORTER_ASSERT(reporter, !smallRegion.contains(5, 5)); |
| REPORTER_ASSERT(reporter, smallRegion.contains(0, 499)); |
| REPORTER_ASSERT(reporter, smallRegion.contains(499, 0)); |
| REPORTER_ASSERT(reporter, smallRegion.contains(499, 499)); |
| } |