static void test_empty_crbug_458524(skiatest::Reporter* reporter) { SkRRect rr; const SkRect bounds = { 3709, 3709, 3709 + 7402, 3709 + 29825 }; const SkScalar rad = 40; rr.setRectXY(bounds, rad, rad); SkRRect other; SkMatrix matrix; matrix.setScale(0, 1); rr.transform(matrix, &other); REPORTER_ASSERT(reporter, SkRRect::kEmpty_Type == other.getType()); }
static void test_empty_crbug_458524(skiatest::Reporter* reporter) { SkRRect rr; const SkRect bounds = { 3709, 3709, 3709 + 7402, 3709 + 29825 }; const SkScalar rad = 40; rr.setRectXY(bounds, rad, rad); path_contains_rrect_check(reporter, rr); SkRRect other; SkMatrix matrix; matrix.setScale(0, 1); rr.transform(matrix, &other); path_contains_rrect_check(reporter, rr); }
// Called for a matrix that should cause SkRRect::transform to fail. static void assert_transform_failure(skiatest::Reporter* reporter, const SkRRect& orig, const SkMatrix& matrix) { // The test depends on the fact that the original is not empty. SkASSERT(!orig.isEmpty()); SkRRect dst; dst.setEmpty(); const SkRRect copyOfDst = dst; const SkRRect copyOfOrig = orig; bool success = orig.transform(matrix, &dst); // This transform should fail. REPORTER_ASSERT(reporter, !success); // Since the transform failed, dst should be unchanged. REPORTER_ASSERT(reporter, copyOfDst == dst); // original should not be modified. REPORTER_ASSERT(reporter, copyOfOrig == orig); REPORTER_ASSERT(reporter, orig != dst); }
// Test out the case where an oval already off in space is translated/scaled // further off into space - yielding numerical issues when the rect & radii // are transformed separatly // BUG=skia:2696 static void test_issue_2696(skiatest::Reporter* reporter) { SkRRect rrect; SkRect r = { 28443.8594f, 53.1428604f, 28446.7148f, 56.0000038f }; rrect.setOval(r); SkMatrix xform; xform.setAll(2.44f, 0.0f, 485411.7f, 0.0f, 2.44f, -438.7f, 0.0f, 0.0f, 1.0f); SkRRect dst; bool success = rrect.transform(xform, &dst); REPORTER_ASSERT(reporter, success); SkScalar halfWidth = SkScalarHalf(dst.width()); SkScalar halfHeight = SkScalarHalf(dst.height()); for (int i = 0; i < 4; ++i) { REPORTER_ASSERT(reporter, SkScalarNearlyEqual(dst.radii((SkRRect::Corner)i).fX, halfWidth)); REPORTER_ASSERT(reporter, SkScalarNearlyEqual(dst.radii((SkRRect::Corner)i).fY, halfHeight)); } }
// Called to test various transforms on a single SkRRect. static void test_transform_helper(skiatest::Reporter* reporter, const SkRRect& orig) { SkRRect dst; dst.setEmpty(); // The identity matrix will duplicate the rrect. bool success = orig.transform(SkMatrix::I(), &dst); REPORTER_ASSERT(reporter, success); REPORTER_ASSERT(reporter, orig == dst); // Skew and Perspective make transform fail. SkMatrix matrix; matrix.reset(); matrix.setSkewX(SkIntToScalar(2)); assert_transform_failure(reporter, orig, matrix); matrix.reset(); matrix.setSkewY(SkIntToScalar(3)); assert_transform_failure(reporter, orig, matrix); matrix.reset(); matrix.setPerspX(4); assert_transform_failure(reporter, orig, matrix); matrix.reset(); matrix.setPerspY(5); assert_transform_failure(reporter, orig, matrix); // Rotation fails. matrix.reset(); matrix.setRotate(SkIntToScalar(90)); assert_transform_failure(reporter, orig, matrix); matrix.setRotate(SkIntToScalar(37)); assert_transform_failure(reporter, orig, matrix); // Translate will keep the rect moved, but otherwise the same. matrix.reset(); SkScalar translateX = SkIntToScalar(32); SkScalar translateY = SkIntToScalar(15); matrix.setTranslateX(translateX); matrix.setTranslateY(translateY); dst.setEmpty(); success = orig.transform(matrix, &dst); REPORTER_ASSERT(reporter, success); for (int i = 0; i < 4; ++i) { REPORTER_ASSERT(reporter, orig.radii((SkRRect::Corner) i) == dst.radii((SkRRect::Corner) i)); } REPORTER_ASSERT(reporter, orig.rect().width() == dst.rect().width()); REPORTER_ASSERT(reporter, orig.rect().height() == dst.rect().height()); REPORTER_ASSERT(reporter, dst.rect().left() == orig.rect().left() + translateX); REPORTER_ASSERT(reporter, dst.rect().top() == orig.rect().top() + translateY); // Keeping the translation, but adding skew will make transform fail. matrix.setSkewY(SkIntToScalar(7)); assert_transform_failure(reporter, orig, matrix); // Scaling in -x will flip the round rect horizontally. matrix.reset(); matrix.setScaleX(SkIntToScalar(-1)); dst.setEmpty(); success = orig.transform(matrix, &dst); REPORTER_ASSERT(reporter, success); { GET_RADII; // Radii have swapped in x. REPORTER_ASSERT(reporter, origUL == dstUR); REPORTER_ASSERT(reporter, origUR == dstUL); REPORTER_ASSERT(reporter, origLR == dstLL); REPORTER_ASSERT(reporter, origLL == dstLR); } // Width and height remain the same. REPORTER_ASSERT(reporter, orig.rect().width() == dst.rect().width()); REPORTER_ASSERT(reporter, orig.rect().height() == dst.rect().height()); // Right and left have swapped (sort of) REPORTER_ASSERT(reporter, orig.rect().right() == -dst.rect().left()); // Top has stayed the same. REPORTER_ASSERT(reporter, orig.rect().top() == dst.rect().top()); // Keeping the scale, but adding a persp will make transform fail. matrix.setPerspX(7); assert_transform_failure(reporter, orig, matrix); // Scaling in -y will flip the round rect vertically. matrix.reset(); matrix.setScaleY(SkIntToScalar(-1)); dst.setEmpty(); success = orig.transform(matrix, &dst); REPORTER_ASSERT(reporter, success); { GET_RADII; // Radii have swapped in y. REPORTER_ASSERT(reporter, origUL == dstLL); REPORTER_ASSERT(reporter, origUR == dstLR); REPORTER_ASSERT(reporter, origLR == dstUR); REPORTER_ASSERT(reporter, origLL == dstUL); } // Width and height remain the same. REPORTER_ASSERT(reporter, orig.rect().width() == dst.rect().width()); REPORTER_ASSERT(reporter, orig.rect().height() == dst.rect().height()); // Top and bottom have swapped (sort of) REPORTER_ASSERT(reporter, orig.rect().top() == -dst.rect().bottom()); // Left has stayed the same. REPORTER_ASSERT(reporter, orig.rect().left() == dst.rect().left()); // Scaling in -x and -y will swap in both directions. matrix.reset(); matrix.setScaleY(SkIntToScalar(-1)); matrix.setScaleX(SkIntToScalar(-1)); dst.setEmpty(); success = orig.transform(matrix, &dst); REPORTER_ASSERT(reporter, success); { GET_RADII; REPORTER_ASSERT(reporter, origUL == dstLR); REPORTER_ASSERT(reporter, origUR == dstLL); REPORTER_ASSERT(reporter, origLR == dstUL); REPORTER_ASSERT(reporter, origLL == dstUR); } // Width and height remain the same. REPORTER_ASSERT(reporter, orig.rect().width() == dst.rect().width()); REPORTER_ASSERT(reporter, orig.rect().height() == dst.rect().height()); REPORTER_ASSERT(reporter, orig.rect().top() == -dst.rect().bottom()); REPORTER_ASSERT(reporter, orig.rect().right() == -dst.rect().left()); // Scale in both directions. SkScalar xScale = SkIntToScalar(3); SkScalar yScale = 3.2f; matrix.reset(); matrix.setScaleX(xScale); matrix.setScaleY(yScale); dst.setEmpty(); success = orig.transform(matrix, &dst); REPORTER_ASSERT(reporter, success); // Radii are scaled. for (int i = 0; i < 4; ++i) { REPORTER_ASSERT(reporter, SkScalarNearlyEqual(dst.radii((SkRRect::Corner) i).fX, SkScalarMul(orig.radii((SkRRect::Corner) i).fX, xScale))); REPORTER_ASSERT(reporter, SkScalarNearlyEqual(dst.radii((SkRRect::Corner) i).fY, SkScalarMul(orig.radii((SkRRect::Corner) i).fY, yScale))); } REPORTER_ASSERT(reporter, SkScalarNearlyEqual(dst.rect().width(), SkScalarMul(orig.rect().width(), xScale))); REPORTER_ASSERT(reporter, SkScalarNearlyEqual(dst.rect().height(), SkScalarMul(orig.rect().height(), yScale))); REPORTER_ASSERT(reporter, SkScalarNearlyEqual(dst.rect().left(), SkScalarMul(orig.rect().left(), xScale))); REPORTER_ASSERT(reporter, SkScalarNearlyEqual(dst.rect().top(), SkScalarMul(orig.rect().top(), yScale))); }