MatrixTest.cpp revision 5bfa55b1cd067fa2fe1cbe409573aeaabd98d23c
1ec3ed6a5ebf6f2c406d7bcf94b6bc34fcaeb976eepoger@google.com 2ec3ed6a5ebf6f2c406d7bcf94b6bc34fcaeb976eepoger@google.com/* 3ec3ed6a5ebf6f2c406d7bcf94b6bc34fcaeb976eepoger@google.com * Copyright 2011 Google Inc. 4ec3ed6a5ebf6f2c406d7bcf94b6bc34fcaeb976eepoger@google.com * 5ec3ed6a5ebf6f2c406d7bcf94b6bc34fcaeb976eepoger@google.com * Use of this source code is governed by a BSD-style license that can be 6ec3ed6a5ebf6f2c406d7bcf94b6bc34fcaeb976eepoger@google.com * found in the LICENSE file. 7ec3ed6a5ebf6f2c406d7bcf94b6bc34fcaeb976eepoger@google.com */ 8ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com#include "Test.h" 9889bd8bd7f604acae0a6303365bc82c06da1e6f3tomhudson@google.com#include "SkMath.h" 10ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com#include "SkMatrix.h" 11383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com#include "SkRandom.h" 12ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com 13ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.comstatic bool nearly_equal_scalar(SkScalar a, SkScalar b) { 142047f00e4698f83499ab91911999a65c21a951c9epoger@google.com // Note that we get more compounded error for multiple operations when 152047f00e4698f83499ab91911999a65c21a951c9epoger@google.com // SK_SCALAR_IS_FIXED. 16ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com#ifdef SK_SCALAR_IS_FLOAT 172047f00e4698f83499ab91911999a65c21a951c9epoger@google.com const SkScalar tolerance = SK_Scalar1 / 200000; 18ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com#else 192047f00e4698f83499ab91911999a65c21a951c9epoger@google.com const SkScalar tolerance = SK_Scalar1 / 1024; 20ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com#endif 21ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com 22ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com return SkScalarAbs(a - b) <= tolerance; 23ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com} 24ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com 25ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.comstatic bool nearly_equal(const SkMatrix& a, const SkMatrix& b) { 26ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com for (int i = 0; i < 9; i++) { 27ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com if (!nearly_equal_scalar(a[i], b[i])) { 28d41344553163085bfcfaf7d5882c6028934f8e3breed@android.com printf("not equal %g %g\n", (float)a[i], (float)b[i]); 29ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com return false; 30ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com } 31ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com } 32ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com return true; 33ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com} 34ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com 358fe84b53a64b5d92f3aabdd8e7fc7b2ee15c0a75bsalomon@google.comstatic bool are_equal(skiatest::Reporter* reporter, 368fe84b53a64b5d92f3aabdd8e7fc7b2ee15c0a75bsalomon@google.com const SkMatrix& a, 378fe84b53a64b5d92f3aabdd8e7fc7b2ee15c0a75bsalomon@google.com const SkMatrix& b) { 388fe84b53a64b5d92f3aabdd8e7fc7b2ee15c0a75bsalomon@google.com bool equal = a == b; 398fe84b53a64b5d92f3aabdd8e7fc7b2ee15c0a75bsalomon@google.com bool cheapEqual = a.cheapEqualTo(b); 408fe84b53a64b5d92f3aabdd8e7fc7b2ee15c0a75bsalomon@google.com if (equal != cheapEqual) { 418fe84b53a64b5d92f3aabdd8e7fc7b2ee15c0a75bsalomon@google.com#if SK_SCALAR_IS_FLOAT 4239d4f3a02c21a32b766b13068d5bb65d4c332846bsalomon@google.com if (equal) { 438fe84b53a64b5d92f3aabdd8e7fc7b2ee15c0a75bsalomon@google.com bool foundZeroSignDiff = false; 448fe84b53a64b5d92f3aabdd8e7fc7b2ee15c0a75bsalomon@google.com for (int i = 0; i < 9; ++i) { 458fe84b53a64b5d92f3aabdd8e7fc7b2ee15c0a75bsalomon@google.com float aVal = a.get(i); 468fe84b53a64b5d92f3aabdd8e7fc7b2ee15c0a75bsalomon@google.com float bVal = b.get(i); 478fe84b53a64b5d92f3aabdd8e7fc7b2ee15c0a75bsalomon@google.com int aValI = *reinterpret_cast<int*>(&aVal); 488fe84b53a64b5d92f3aabdd8e7fc7b2ee15c0a75bsalomon@google.com int bValI = *reinterpret_cast<int*>(&bVal); 498fe84b53a64b5d92f3aabdd8e7fc7b2ee15c0a75bsalomon@google.com if (0 == aVal && 0 == bVal && aValI != bValI) { 508fe84b53a64b5d92f3aabdd8e7fc7b2ee15c0a75bsalomon@google.com foundZeroSignDiff = true; 518fe84b53a64b5d92f3aabdd8e7fc7b2ee15c0a75bsalomon@google.com } else { 528fe84b53a64b5d92f3aabdd8e7fc7b2ee15c0a75bsalomon@google.com REPORTER_ASSERT(reporter, aVal == bVal && aValI == aValI); 538fe84b53a64b5d92f3aabdd8e7fc7b2ee15c0a75bsalomon@google.com } 548fe84b53a64b5d92f3aabdd8e7fc7b2ee15c0a75bsalomon@google.com } 558fe84b53a64b5d92f3aabdd8e7fc7b2ee15c0a75bsalomon@google.com REPORTER_ASSERT(reporter, foundZeroSignDiff); 568fe84b53a64b5d92f3aabdd8e7fc7b2ee15c0a75bsalomon@google.com } else { 578fe84b53a64b5d92f3aabdd8e7fc7b2ee15c0a75bsalomon@google.com bool foundNaN = false; 588fe84b53a64b5d92f3aabdd8e7fc7b2ee15c0a75bsalomon@google.com for (int i = 0; i < 9; ++i) { 598fe84b53a64b5d92f3aabdd8e7fc7b2ee15c0a75bsalomon@google.com float aVal = a.get(i); 608fe84b53a64b5d92f3aabdd8e7fc7b2ee15c0a75bsalomon@google.com float bVal = b.get(i); 618fe84b53a64b5d92f3aabdd8e7fc7b2ee15c0a75bsalomon@google.com int aValI = *reinterpret_cast<int*>(&aVal); 628fe84b53a64b5d92f3aabdd8e7fc7b2ee15c0a75bsalomon@google.com int bValI = *reinterpret_cast<int*>(&bVal); 638fe84b53a64b5d92f3aabdd8e7fc7b2ee15c0a75bsalomon@google.com if (sk_float_isnan(aVal) && aValI == bValI) { 648fe84b53a64b5d92f3aabdd8e7fc7b2ee15c0a75bsalomon@google.com foundNaN = true; 658fe84b53a64b5d92f3aabdd8e7fc7b2ee15c0a75bsalomon@google.com } else { 668fe84b53a64b5d92f3aabdd8e7fc7b2ee15c0a75bsalomon@google.com REPORTER_ASSERT(reporter, aVal == bVal && aValI == bValI); 678fe84b53a64b5d92f3aabdd8e7fc7b2ee15c0a75bsalomon@google.com } 688fe84b53a64b5d92f3aabdd8e7fc7b2ee15c0a75bsalomon@google.com } 698fe84b53a64b5d92f3aabdd8e7fc7b2ee15c0a75bsalomon@google.com REPORTER_ASSERT(reporter, foundNaN); 708fe84b53a64b5d92f3aabdd8e7fc7b2ee15c0a75bsalomon@google.com } 718fe84b53a64b5d92f3aabdd8e7fc7b2ee15c0a75bsalomon@google.com#else 728fe84b53a64b5d92f3aabdd8e7fc7b2ee15c0a75bsalomon@google.com REPORTER_ASSERT(reporter, false); 738fe84b53a64b5d92f3aabdd8e7fc7b2ee15c0a75bsalomon@google.com#endif 748fe84b53a64b5d92f3aabdd8e7fc7b2ee15c0a75bsalomon@google.com } 758fe84b53a64b5d92f3aabdd8e7fc7b2ee15c0a75bsalomon@google.com return equal; 768fe84b53a64b5d92f3aabdd8e7fc7b2ee15c0a75bsalomon@google.com} 778fe84b53a64b5d92f3aabdd8e7fc7b2ee15c0a75bsalomon@google.com 78ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.comstatic bool is_identity(const SkMatrix& m) { 79ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com SkMatrix identity; 8080e39a77b16f4396eed230efea1d0b2fc8cbfb00reed@android.com identity.reset(); 81ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com return nearly_equal(m, identity); 82ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com} 83ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com 844b7577b042966657c776fd95c67f9363af57945freed@android.comstatic void test_flatten(skiatest::Reporter* reporter, const SkMatrix& m) { 854b7577b042966657c776fd95c67f9363af57945freed@android.com // add 100 in case we have a bug, I don't want to kill my stack in the test 864b7577b042966657c776fd95c67f9363af57945freed@android.com char buffer[SkMatrix::kMaxFlattenSize + 100]; 874b7577b042966657c776fd95c67f9363af57945freed@android.com uint32_t size1 = m.flatten(NULL); 884b7577b042966657c776fd95c67f9363af57945freed@android.com uint32_t size2 = m.flatten(buffer); 894b7577b042966657c776fd95c67f9363af57945freed@android.com REPORTER_ASSERT(reporter, size1 == size2); 904b7577b042966657c776fd95c67f9363af57945freed@android.com REPORTER_ASSERT(reporter, size1 <= SkMatrix::kMaxFlattenSize); 914b7577b042966657c776fd95c67f9363af57945freed@android.com 924b7577b042966657c776fd95c67f9363af57945freed@android.com SkMatrix m2; 934b7577b042966657c776fd95c67f9363af57945freed@android.com uint32_t size3 = m2.unflatten(buffer); 944b7577b042966657c776fd95c67f9363af57945freed@android.com REPORTER_ASSERT(reporter, size1 == size2); 958fe84b53a64b5d92f3aabdd8e7fc7b2ee15c0a75bsalomon@google.com REPORTER_ASSERT(reporter, are_equal(reporter, m, m2)); 964b7577b042966657c776fd95c67f9363af57945freed@android.com 974b7577b042966657c776fd95c67f9363af57945freed@android.com char buffer2[SkMatrix::kMaxFlattenSize + 100]; 984b7577b042966657c776fd95c67f9363af57945freed@android.com size3 = m2.flatten(buffer2); 994b7577b042966657c776fd95c67f9363af57945freed@android.com REPORTER_ASSERT(reporter, size1 == size2); 1004b7577b042966657c776fd95c67f9363af57945freed@android.com REPORTER_ASSERT(reporter, memcmp(buffer, buffer2, size1) == 0); 1014b7577b042966657c776fd95c67f9363af57945freed@android.com} 1024b7577b042966657c776fd95c67f9363af57945freed@android.com 103383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.comvoid test_matrix_max_stretch(skiatest::Reporter* reporter) { 104383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com SkMatrix identity; 105383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com identity.reset(); 106383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com REPORTER_ASSERT(reporter, SK_Scalar1 == identity.getMaxStretch()); 107383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com 108383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com SkMatrix scale; 109383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com scale.setScale(SK_Scalar1 * 2, SK_Scalar1 * 4); 110383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com REPORTER_ASSERT(reporter, SK_Scalar1 * 4 == scale.getMaxStretch()); 111383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com 112383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com SkMatrix rot90Scale; 113383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com rot90Scale.setRotate(90 * SK_Scalar1); 114383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com rot90Scale.postScale(SK_Scalar1 / 4, SK_Scalar1 / 2); 115383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com REPORTER_ASSERT(reporter, SK_Scalar1 / 2 == rot90Scale.getMaxStretch()); 116383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com 117383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com SkMatrix rotate; 118383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com rotate.setRotate(128 * SK_Scalar1); 119383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com REPORTER_ASSERT(reporter, SkScalarAbs(SK_Scalar1 - rotate.getMaxStretch()) <= SK_ScalarNearlyZero); 120383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com 121383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com SkMatrix translate; 122383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com translate.setTranslate(10 * SK_Scalar1, -5 * SK_Scalar1); 123383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com REPORTER_ASSERT(reporter, SK_Scalar1 == translate.getMaxStretch()); 124383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com 125383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com SkMatrix perspX; 126383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com perspX.reset(); 12707faed110275048c83a55ae39042da2c9d916108bungeman@google.com perspX.setPerspX(SkScalarToPersp(SK_Scalar1 / 1000)); 128383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com REPORTER_ASSERT(reporter, -SK_Scalar1 == perspX.getMaxStretch()); 129383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com 130383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com SkMatrix perspY; 131383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com perspY.reset(); 13207faed110275048c83a55ae39042da2c9d916108bungeman@google.com perspY.setPerspX(SkScalarToPersp(-SK_Scalar1 / 500)); 133383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com REPORTER_ASSERT(reporter, -SK_Scalar1 == perspY.getMaxStretch()); 134383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com 135383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com SkMatrix baseMats[] = {scale, rot90Scale, rotate, 136383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com translate, perspX, perspY}; 137383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com SkMatrix mats[2*SK_ARRAY_COUNT(baseMats)]; 13883a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com for (size_t i = 0; i < SK_ARRAY_COUNT(baseMats); ++i) { 139383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com mats[i] = baseMats[i]; 140383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com bool invertable = mats[i].invert(&mats[i + SK_ARRAY_COUNT(baseMats)]); 141383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com REPORTER_ASSERT(reporter, invertable); 142383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com } 143383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com SkRandom rand; 144383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com for (int m = 0; m < 1000; ++m) { 145383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com SkMatrix mat; 146383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com mat.reset(); 147383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com for (int i = 0; i < 4; ++i) { 148383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com int x = rand.nextU() % SK_ARRAY_COUNT(mats); 149383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com mat.postConcat(mats[x]); 150383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com } 151383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com SkScalar stretch = mat.getMaxStretch(); 152383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com 153383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com if ((stretch < 0) != mat.hasPerspective()) { 154383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com stretch = mat.getMaxStretch(); 155383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com } 156383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com 157383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com REPORTER_ASSERT(reporter, (stretch < 0) == mat.hasPerspective()); 158383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com 159383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com if (mat.hasPerspective()) { 160383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com m -= 1; // try another non-persp matrix 161383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com continue; 162383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com } 163383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com 164383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com // test a bunch of vectors. None should be scaled by more than stretch 165383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com // (modulo some error) and we should find a vector that is scaled by 166383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com // almost stretch. 167383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com static const SkScalar gStretchTol = (105 * SK_Scalar1) / 100; 168383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com static const SkScalar gMaxStretchTol = (97 * SK_Scalar1) / 100; 169383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com SkScalar max = 0; 170383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com SkVector vectors[1000]; 17183a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com for (size_t i = 0; i < SK_ARRAY_COUNT(vectors); ++i) { 172383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com vectors[i].fX = rand.nextSScalar1(); 173383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com vectors[i].fY = rand.nextSScalar1(); 174383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com if (!vectors[i].normalize()) { 175383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com i -= 1; 176383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com continue; 177383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com } 178383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com } 179383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com mat.mapVectors(vectors, SK_ARRAY_COUNT(vectors)); 18083a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com for (size_t i = 0; i < SK_ARRAY_COUNT(vectors); ++i) { 181383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com SkScalar d = vectors[i].length(); 182383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com REPORTER_ASSERT(reporter, SkScalarDiv(d, stretch) < gStretchTol); 183383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com if (max < d) { 184383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com max = d; 185383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com } 186383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com } 187383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com REPORTER_ASSERT(reporter, SkScalarDiv(max, stretch) >= gMaxStretchTol); 188383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com } 189383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com} 190383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com 191ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.comvoid TestMatrix(skiatest::Reporter* reporter) { 192ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com SkMatrix mat, inverse, iden1, iden2; 193ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com 194ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com mat.reset(); 195ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com mat.setTranslate(SK_Scalar1, SK_Scalar1); 1965bfa55b1cd067fa2fe1cbe409573aeaabd98d23creed@google.com REPORTER_ASSERT(reporter, mat.invert(&inverse)); 197ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com iden1.setConcat(mat, inverse); 198ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com REPORTER_ASSERT(reporter, is_identity(iden1)); 199ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com 200ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com mat.setScale(SkIntToScalar(2), SkIntToScalar(2)); 2015bfa55b1cd067fa2fe1cbe409573aeaabd98d23creed@google.com REPORTER_ASSERT(reporter, mat.invert(&inverse)); 202ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com iden1.setConcat(mat, inverse); 203ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com REPORTER_ASSERT(reporter, is_identity(iden1)); 2044b7577b042966657c776fd95c67f9363af57945freed@android.com test_flatten(reporter, mat); 205ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com 206ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com mat.setScale(SK_Scalar1/2, SK_Scalar1/2); 2075bfa55b1cd067fa2fe1cbe409573aeaabd98d23creed@google.com REPORTER_ASSERT(reporter, mat.invert(&inverse)); 208ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com iden1.setConcat(mat, inverse); 209ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com REPORTER_ASSERT(reporter, is_identity(iden1)); 2104b7577b042966657c776fd95c67f9363af57945freed@android.com test_flatten(reporter, mat); 211ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com 212ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com mat.setScale(SkIntToScalar(3), SkIntToScalar(5), SkIntToScalar(20), 0); 213ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com mat.postRotate(SkIntToScalar(25)); 214ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com REPORTER_ASSERT(reporter, mat.invert(NULL)); 2155bfa55b1cd067fa2fe1cbe409573aeaabd98d23creed@google.com REPORTER_ASSERT(reporter, mat.invert(&inverse)); 216ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com iden1.setConcat(mat, inverse); 217ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com REPORTER_ASSERT(reporter, is_identity(iden1)); 218ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com iden2.setConcat(inverse, mat); 219ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com REPORTER_ASSERT(reporter, is_identity(iden2)); 2204b7577b042966657c776fd95c67f9363af57945freed@android.com test_flatten(reporter, mat); 2214b7577b042966657c776fd95c67f9363af57945freed@android.com test_flatten(reporter, iden2); 22280e39a77b16f4396eed230efea1d0b2fc8cbfb00reed@android.com 223ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com // rectStaysRect test 224ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com { 225ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com static const struct { 226ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com SkScalar m00, m01, m10, m11; 227ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com bool mStaysRect; 228ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com } 229ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com gRectStaysRectSamples[] = { 230ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com { 0, 0, 0, 0, false }, 231ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com { 0, 0, 0, SK_Scalar1, false }, 232ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com { 0, 0, SK_Scalar1, 0, false }, 233ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com { 0, 0, SK_Scalar1, SK_Scalar1, false }, 234ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com { 0, SK_Scalar1, 0, 0, false }, 235ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com { 0, SK_Scalar1, 0, SK_Scalar1, false }, 236ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com { 0, SK_Scalar1, SK_Scalar1, 0, true }, 237ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com { 0, SK_Scalar1, SK_Scalar1, SK_Scalar1, false }, 238ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com { SK_Scalar1, 0, 0, 0, false }, 239ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com { SK_Scalar1, 0, 0, SK_Scalar1, true }, 240ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com { SK_Scalar1, 0, SK_Scalar1, 0, false }, 241ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com { SK_Scalar1, 0, SK_Scalar1, SK_Scalar1, false }, 242ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com { SK_Scalar1, SK_Scalar1, 0, 0, false }, 243ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com { SK_Scalar1, SK_Scalar1, 0, SK_Scalar1, false }, 244ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com { SK_Scalar1, SK_Scalar1, SK_Scalar1, 0, false }, 245ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com { SK_Scalar1, SK_Scalar1, SK_Scalar1, SK_Scalar1, false } 246ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com }; 24780e39a77b16f4396eed230efea1d0b2fc8cbfb00reed@android.com 248ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com for (size_t i = 0; i < SK_ARRAY_COUNT(gRectStaysRectSamples); i++) { 249ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com SkMatrix m; 25080e39a77b16f4396eed230efea1d0b2fc8cbfb00reed@android.com 251ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com m.reset(); 252ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com m.set(SkMatrix::kMScaleX, gRectStaysRectSamples[i].m00); 253ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com m.set(SkMatrix::kMSkewX, gRectStaysRectSamples[i].m01); 254ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com m.set(SkMatrix::kMSkewY, gRectStaysRectSamples[i].m10); 255ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com m.set(SkMatrix::kMScaleY, gRectStaysRectSamples[i].m11); 256ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com REPORTER_ASSERT(reporter, 257ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com m.rectStaysRect() == gRectStaysRectSamples[i].mStaysRect); 258ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com } 259ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com } 2601ddd7c39289b7dd18537fdac4b630e378cd78842bungeman@google.com 261ba7983e55ce15ddcd5534011935178760164fb9dbungeman@google.com mat.reset(); 2621ddd7c39289b7dd18537fdac4b630e378cd78842bungeman@google.com mat.set(SkMatrix::kMScaleX, SkIntToScalar(1)); 2631ddd7c39289b7dd18537fdac4b630e378cd78842bungeman@google.com mat.set(SkMatrix::kMSkewX, SkIntToScalar(2)); 2641ddd7c39289b7dd18537fdac4b630e378cd78842bungeman@google.com mat.set(SkMatrix::kMTransX, SkIntToScalar(3)); 2651ddd7c39289b7dd18537fdac4b630e378cd78842bungeman@google.com mat.set(SkMatrix::kMSkewY, SkIntToScalar(4)); 2661ddd7c39289b7dd18537fdac4b630e378cd78842bungeman@google.com mat.set(SkMatrix::kMScaleY, SkIntToScalar(5)); 2671ddd7c39289b7dd18537fdac4b630e378cd78842bungeman@google.com mat.set(SkMatrix::kMTransY, SkIntToScalar(6)); 2681ddd7c39289b7dd18537fdac4b630e378cd78842bungeman@google.com SkScalar affine[6]; 2691ddd7c39289b7dd18537fdac4b630e378cd78842bungeman@google.com REPORTER_ASSERT(reporter, mat.asAffine(affine)); 2701ddd7c39289b7dd18537fdac4b630e378cd78842bungeman@google.com 2711ddd7c39289b7dd18537fdac4b630e378cd78842bungeman@google.com #define affineEqual(e) affine[SkMatrix::kA##e] == mat.get(SkMatrix::kM##e) 2721ddd7c39289b7dd18537fdac4b630e378cd78842bungeman@google.com REPORTER_ASSERT(reporter, affineEqual(ScaleX)); 2731ddd7c39289b7dd18537fdac4b630e378cd78842bungeman@google.com REPORTER_ASSERT(reporter, affineEqual(SkewY)); 2741ddd7c39289b7dd18537fdac4b630e378cd78842bungeman@google.com REPORTER_ASSERT(reporter, affineEqual(SkewX)); 2751ddd7c39289b7dd18537fdac4b630e378cd78842bungeman@google.com REPORTER_ASSERT(reporter, affineEqual(ScaleY)); 2761ddd7c39289b7dd18537fdac4b630e378cd78842bungeman@google.com REPORTER_ASSERT(reporter, affineEqual(TransX)); 2771ddd7c39289b7dd18537fdac4b630e378cd78842bungeman@google.com REPORTER_ASSERT(reporter, affineEqual(TransY)); 2781ddd7c39289b7dd18537fdac4b630e378cd78842bungeman@google.com #undef affineEqual 2791ddd7c39289b7dd18537fdac4b630e378cd78842bungeman@google.com 28007faed110275048c83a55ae39042da2c9d916108bungeman@google.com mat.set(SkMatrix::kMPersp1, SkScalarToPersp(SK_Scalar1 / 2)); 2811ddd7c39289b7dd18537fdac4b630e378cd78842bungeman@google.com REPORTER_ASSERT(reporter, !mat.asAffine(affine)); 282383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com 2838fe84b53a64b5d92f3aabdd8e7fc7b2ee15c0a75bsalomon@google.com SkMatrix mat2; 2848fe84b53a64b5d92f3aabdd8e7fc7b2ee15c0a75bsalomon@google.com mat2.reset(); 2858fe84b53a64b5d92f3aabdd8e7fc7b2ee15c0a75bsalomon@google.com mat.reset(); 2868fe84b53a64b5d92f3aabdd8e7fc7b2ee15c0a75bsalomon@google.com SkScalar zero = 0; 2878fe84b53a64b5d92f3aabdd8e7fc7b2ee15c0a75bsalomon@google.com mat.set(SkMatrix::kMSkewX, -zero); 2888fe84b53a64b5d92f3aabdd8e7fc7b2ee15c0a75bsalomon@google.com REPORTER_ASSERT(reporter, are_equal(reporter, mat, mat2)); 2898fe84b53a64b5d92f3aabdd8e7fc7b2ee15c0a75bsalomon@google.com 2908fe84b53a64b5d92f3aabdd8e7fc7b2ee15c0a75bsalomon@google.com mat2.reset(); 2918fe84b53a64b5d92f3aabdd8e7fc7b2ee15c0a75bsalomon@google.com mat.reset(); 2928fe84b53a64b5d92f3aabdd8e7fc7b2ee15c0a75bsalomon@google.com mat.set(SkMatrix::kMSkewX, SK_ScalarNaN); 2938fe84b53a64b5d92f3aabdd8e7fc7b2ee15c0a75bsalomon@google.com mat2.set(SkMatrix::kMSkewX, SK_ScalarNaN); 2949ed2ecd3ac9b4601fccee8b7232b49bb2f9fed2ebsalomon@google.com // fixed pt doesn't have the property that NaN does not equal itself. 2959ed2ecd3ac9b4601fccee8b7232b49bb2f9fed2ebsalomon@google.com#ifdef SK_SCALAR_IS_FIXED 2969ed2ecd3ac9b4601fccee8b7232b49bb2f9fed2ebsalomon@google.com REPORTER_ASSERT(reporter, are_equal(reporter, mat, mat2)); 2979ed2ecd3ac9b4601fccee8b7232b49bb2f9fed2ebsalomon@google.com#else 2988fe84b53a64b5d92f3aabdd8e7fc7b2ee15c0a75bsalomon@google.com REPORTER_ASSERT(reporter, !are_equal(reporter, mat, mat2)); 2999ed2ecd3ac9b4601fccee8b7232b49bb2f9fed2ebsalomon@google.com#endif 3008fe84b53a64b5d92f3aabdd8e7fc7b2ee15c0a75bsalomon@google.com 301383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com test_matrix_max_stretch(reporter); 302ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com} 303ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com 304d8730ea8b25d692c0656f8cf03f02aecfab2a17creed@android.com#include "TestClassDef.h" 305d8730ea8b25d692c0656f8cf03f02aecfab2a17creed@android.comDEFINE_TESTCLASS("Matrix", MatrixTestClass, TestMatrix) 306