MatrixTest.cpp revision 1878651990d7c9da72cf43481432232bbef3550d
1ec3ed6a5ebf6f2c406d7bcf94b6bc34fcaeb976eepoger@google.com/* 2ec3ed6a5ebf6f2c406d7bcf94b6bc34fcaeb976eepoger@google.com * Copyright 2011 Google Inc. 3ec3ed6a5ebf6f2c406d7bcf94b6bc34fcaeb976eepoger@google.com * 4ec3ed6a5ebf6f2c406d7bcf94b6bc34fcaeb976eepoger@google.com * Use of this source code is governed by a BSD-style license that can be 5ec3ed6a5ebf6f2c406d7bcf94b6bc34fcaeb976eepoger@google.com * found in the LICENSE file. 6ec3ed6a5ebf6f2c406d7bcf94b6bc34fcaeb976eepoger@google.com */ 7e4fafb146e85cdfcf9d5418597b6818aa0754adatfarina@chromium.org 8889bd8bd7f604acae0a6303365bc82c06da1e6f3tomhudson@google.com#include "SkMath.h" 9ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com#include "SkMatrix.h" 1008284e4d2421fb6c1978e68038a3568711cd9877commit-bot@chromium.org#include "SkMatrixUtils.h" 11383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com#include "SkRandom.h" 128f6884aab8aecd7657cf3f9cdbc682f0deca29c5tfarina@chromium.org#include "Test.h" 13ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com 14ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.comstatic bool nearly_equal_scalar(SkScalar a, SkScalar b) { 152047f00e4698f83499ab91911999a65c21a951c9epoger@google.com const SkScalar tolerance = SK_Scalar1 / 200000; 16ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com return SkScalarAbs(a - b) <= tolerance; 17ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com} 18ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com 19ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.comstatic bool nearly_equal(const SkMatrix& a, const SkMatrix& b) { 20ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com for (int i = 0; i < 9; i++) { 21ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com if (!nearly_equal_scalar(a[i], b[i])) { 22fab44db294846ff05d837b9cf0bf97a073891da7bungeman@google.com SkDebugf("not equal %g %g\n", (float)a[i], (float)b[i]); 23ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com return false; 24ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com } 25ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com } 26ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com return true; 27ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com} 28ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com 298fe84b53a64b5d92f3aabdd8e7fc7b2ee15c0a75bsalomon@google.comstatic bool are_equal(skiatest::Reporter* reporter, 308fe84b53a64b5d92f3aabdd8e7fc7b2ee15c0a75bsalomon@google.com const SkMatrix& a, 318fe84b53a64b5d92f3aabdd8e7fc7b2ee15c0a75bsalomon@google.com const SkMatrix& b) { 328fe84b53a64b5d92f3aabdd8e7fc7b2ee15c0a75bsalomon@google.com bool equal = a == b; 338fe84b53a64b5d92f3aabdd8e7fc7b2ee15c0a75bsalomon@google.com bool cheapEqual = a.cheapEqualTo(b); 348fe84b53a64b5d92f3aabdd8e7fc7b2ee15c0a75bsalomon@google.com if (equal != cheapEqual) { 3539d4f3a02c21a32b766b13068d5bb65d4c332846bsalomon@google.com if (equal) { 368fe84b53a64b5d92f3aabdd8e7fc7b2ee15c0a75bsalomon@google.com bool foundZeroSignDiff = false; 378fe84b53a64b5d92f3aabdd8e7fc7b2ee15c0a75bsalomon@google.com for (int i = 0; i < 9; ++i) { 388fe84b53a64b5d92f3aabdd8e7fc7b2ee15c0a75bsalomon@google.com float aVal = a.get(i); 398fe84b53a64b5d92f3aabdd8e7fc7b2ee15c0a75bsalomon@google.com float bVal = b.get(i); 40373ebc634573364c27b1ebd35bb537ef1285cba4bsalomon@google.com int aValI = *SkTCast<int*>(&aVal); 41373ebc634573364c27b1ebd35bb537ef1285cba4bsalomon@google.com int bValI = *SkTCast<int*>(&bVal); 428fe84b53a64b5d92f3aabdd8e7fc7b2ee15c0a75bsalomon@google.com if (0 == aVal && 0 == bVal && aValI != bValI) { 438fe84b53a64b5d92f3aabdd8e7fc7b2ee15c0a75bsalomon@google.com foundZeroSignDiff = true; 448fe84b53a64b5d92f3aabdd8e7fc7b2ee15c0a75bsalomon@google.com } else { 458fe84b53a64b5d92f3aabdd8e7fc7b2ee15c0a75bsalomon@google.com REPORTER_ASSERT(reporter, aVal == bVal && aValI == aValI); 468fe84b53a64b5d92f3aabdd8e7fc7b2ee15c0a75bsalomon@google.com } 478fe84b53a64b5d92f3aabdd8e7fc7b2ee15c0a75bsalomon@google.com } 488fe84b53a64b5d92f3aabdd8e7fc7b2ee15c0a75bsalomon@google.com REPORTER_ASSERT(reporter, foundZeroSignDiff); 498fe84b53a64b5d92f3aabdd8e7fc7b2ee15c0a75bsalomon@google.com } else { 508fe84b53a64b5d92f3aabdd8e7fc7b2ee15c0a75bsalomon@google.com bool foundNaN = false; 518fe84b53a64b5d92f3aabdd8e7fc7b2ee15c0a75bsalomon@google.com for (int i = 0; i < 9; ++i) { 528fe84b53a64b5d92f3aabdd8e7fc7b2ee15c0a75bsalomon@google.com float aVal = a.get(i); 538fe84b53a64b5d92f3aabdd8e7fc7b2ee15c0a75bsalomon@google.com float bVal = b.get(i); 54373ebc634573364c27b1ebd35bb537ef1285cba4bsalomon@google.com int aValI = *SkTCast<int*>(&aVal); 55373ebc634573364c27b1ebd35bb537ef1285cba4bsalomon@google.com int bValI = *SkTCast<int*>(&bVal); 568fe84b53a64b5d92f3aabdd8e7fc7b2ee15c0a75bsalomon@google.com if (sk_float_isnan(aVal) && aValI == bValI) { 578fe84b53a64b5d92f3aabdd8e7fc7b2ee15c0a75bsalomon@google.com foundNaN = true; 588fe84b53a64b5d92f3aabdd8e7fc7b2ee15c0a75bsalomon@google.com } else { 598fe84b53a64b5d92f3aabdd8e7fc7b2ee15c0a75bsalomon@google.com REPORTER_ASSERT(reporter, aVal == bVal && aValI == bValI); 608fe84b53a64b5d92f3aabdd8e7fc7b2ee15c0a75bsalomon@google.com } 618fe84b53a64b5d92f3aabdd8e7fc7b2ee15c0a75bsalomon@google.com } 628fe84b53a64b5d92f3aabdd8e7fc7b2ee15c0a75bsalomon@google.com REPORTER_ASSERT(reporter, foundNaN); 638fe84b53a64b5d92f3aabdd8e7fc7b2ee15c0a75bsalomon@google.com } 648fe84b53a64b5d92f3aabdd8e7fc7b2ee15c0a75bsalomon@google.com } 658fe84b53a64b5d92f3aabdd8e7fc7b2ee15c0a75bsalomon@google.com return equal; 668fe84b53a64b5d92f3aabdd8e7fc7b2ee15c0a75bsalomon@google.com} 678fe84b53a64b5d92f3aabdd8e7fc7b2ee15c0a75bsalomon@google.com 68ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.comstatic bool is_identity(const SkMatrix& m) { 69ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com SkMatrix identity; 7080e39a77b16f4396eed230efea1d0b2fc8cbfb00reed@android.com identity.reset(); 71ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com return nearly_equal(m, identity); 72ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com} 73ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com 7497cd69ca23b27d88e08727366c29c1147eb564dereed@google.comstatic void test_matrix_recttorect(skiatest::Reporter* reporter) { 7597cd69ca23b27d88e08727366c29c1147eb564dereed@google.com SkRect src, dst; 7697cd69ca23b27d88e08727366c29c1147eb564dereed@google.com SkMatrix matrix; 77f57c01bdcfdf1c923b9a473974bfe6f8c66eca3eskia.committer@gmail.com 7897cd69ca23b27d88e08727366c29c1147eb564dereed@google.com src.set(0, 0, SK_Scalar1*10, SK_Scalar1*10); 7997cd69ca23b27d88e08727366c29c1147eb564dereed@google.com dst = src; 8097cd69ca23b27d88e08727366c29c1147eb564dereed@google.com matrix.setRectToRect(src, dst, SkMatrix::kFill_ScaleToFit); 8197cd69ca23b27d88e08727366c29c1147eb564dereed@google.com REPORTER_ASSERT(reporter, SkMatrix::kIdentity_Mask == matrix.getType()); 8297cd69ca23b27d88e08727366c29c1147eb564dereed@google.com REPORTER_ASSERT(reporter, matrix.rectStaysRect()); 83f57c01bdcfdf1c923b9a473974bfe6f8c66eca3eskia.committer@gmail.com 8497cd69ca23b27d88e08727366c29c1147eb564dereed@google.com dst.offset(SK_Scalar1, SK_Scalar1); 8597cd69ca23b27d88e08727366c29c1147eb564dereed@google.com matrix.setRectToRect(src, dst, SkMatrix::kFill_ScaleToFit); 8697cd69ca23b27d88e08727366c29c1147eb564dereed@google.com REPORTER_ASSERT(reporter, SkMatrix::kTranslate_Mask == matrix.getType()); 8797cd69ca23b27d88e08727366c29c1147eb564dereed@google.com REPORTER_ASSERT(reporter, matrix.rectStaysRect()); 88f57c01bdcfdf1c923b9a473974bfe6f8c66eca3eskia.committer@gmail.com 8997cd69ca23b27d88e08727366c29c1147eb564dereed@google.com dst.fRight += SK_Scalar1; 9097cd69ca23b27d88e08727366c29c1147eb564dereed@google.com matrix.setRectToRect(src, dst, SkMatrix::kFill_ScaleToFit); 91e659c2e820de0b8d12d81247ed4430022ded0a90skia.committer@gmail.com REPORTER_ASSERT(reporter, 9293f03324189f211db95c312b3cb08b435cc5ac34robertphillips@google.com (SkMatrix::kTranslate_Mask | SkMatrix::kScale_Mask) == matrix.getType()); 9397cd69ca23b27d88e08727366c29c1147eb564dereed@google.com REPORTER_ASSERT(reporter, matrix.rectStaysRect()); 9497cd69ca23b27d88e08727366c29c1147eb564dereed@google.com 9597cd69ca23b27d88e08727366c29c1147eb564dereed@google.com dst = src; 9697cd69ca23b27d88e08727366c29c1147eb564dereed@google.com dst.fRight = src.fRight * 2; 9797cd69ca23b27d88e08727366c29c1147eb564dereed@google.com matrix.setRectToRect(src, dst, SkMatrix::kFill_ScaleToFit); 9897cd69ca23b27d88e08727366c29c1147eb564dereed@google.com REPORTER_ASSERT(reporter, SkMatrix::kScale_Mask == matrix.getType()); 9997cd69ca23b27d88e08727366c29c1147eb564dereed@google.com REPORTER_ASSERT(reporter, matrix.rectStaysRect()); 10097cd69ca23b27d88e08727366c29c1147eb564dereed@google.com} 10197cd69ca23b27d88e08727366c29c1147eb564dereed@google.com 1024b7577b042966657c776fd95c67f9363af57945freed@android.comstatic void test_flatten(skiatest::Reporter* reporter, const SkMatrix& m) { 1034b7577b042966657c776fd95c67f9363af57945freed@android.com // add 100 in case we have a bug, I don't want to kill my stack in the test 1044faa869cdabbdcf4867118b4a1272296baaeeb52commit-bot@chromium.org static const size_t kBufferSize = SkMatrix::kMaxFlattenSize + 100; 1054faa869cdabbdcf4867118b4a1272296baaeeb52commit-bot@chromium.org char buffer[kBufferSize]; 1064faa869cdabbdcf4867118b4a1272296baaeeb52commit-bot@chromium.org size_t size1 = m.writeToMemory(NULL); 1074faa869cdabbdcf4867118b4a1272296baaeeb52commit-bot@chromium.org size_t size2 = m.writeToMemory(buffer); 1084b7577b042966657c776fd95c67f9363af57945freed@android.com REPORTER_ASSERT(reporter, size1 == size2); 1094b7577b042966657c776fd95c67f9363af57945freed@android.com REPORTER_ASSERT(reporter, size1 <= SkMatrix::kMaxFlattenSize); 110d6176b0dcacb124539e0cfd051e6d93a9782f020rmistry@google.com 1114b7577b042966657c776fd95c67f9363af57945freed@android.com SkMatrix m2; 1124faa869cdabbdcf4867118b4a1272296baaeeb52commit-bot@chromium.org size_t size3 = m2.readFromMemory(buffer, kBufferSize); 11394e75ee46a569cbcdf61fb7f04ee3a69d3ca0896djsollen@google.com REPORTER_ASSERT(reporter, size1 == size3); 1148fe84b53a64b5d92f3aabdd8e7fc7b2ee15c0a75bsalomon@google.com REPORTER_ASSERT(reporter, are_equal(reporter, m, m2)); 115d6176b0dcacb124539e0cfd051e6d93a9782f020rmistry@google.com 1164faa869cdabbdcf4867118b4a1272296baaeeb52commit-bot@chromium.org char buffer2[kBufferSize]; 11794e75ee46a569cbcdf61fb7f04ee3a69d3ca0896djsollen@google.com size3 = m2.writeToMemory(buffer2); 11894e75ee46a569cbcdf61fb7f04ee3a69d3ca0896djsollen@google.com REPORTER_ASSERT(reporter, size1 == size3); 1194b7577b042966657c776fd95c67f9363af57945freed@android.com REPORTER_ASSERT(reporter, memcmp(buffer, buffer2, size1) == 0); 1204b7577b042966657c776fd95c67f9363af57945freed@android.com} 1214b7577b042966657c776fd95c67f9363af57945freed@android.com 1221878651990d7c9da72cf43481432232bbef3550dcommit-bot@chromium.orgstatic void test_matrix_min_max_scale(skiatest::Reporter* reporter) { 123383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com SkMatrix identity; 124383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com identity.reset(); 1251878651990d7c9da72cf43481432232bbef3550dcommit-bot@chromium.org REPORTER_ASSERT(reporter, SK_Scalar1 == identity.getMinScale()); 1261878651990d7c9da72cf43481432232bbef3550dcommit-bot@chromium.org REPORTER_ASSERT(reporter, SK_Scalar1 == identity.getMaxScale()); 127383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com 128383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com SkMatrix scale; 129383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com scale.setScale(SK_Scalar1 * 2, SK_Scalar1 * 4); 1301878651990d7c9da72cf43481432232bbef3550dcommit-bot@chromium.org REPORTER_ASSERT(reporter, SK_Scalar1 * 2 == scale.getMinScale()); 1311878651990d7c9da72cf43481432232bbef3550dcommit-bot@chromium.org REPORTER_ASSERT(reporter, SK_Scalar1 * 4 == scale.getMaxScale()); 132383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com 133383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com SkMatrix rot90Scale; 134383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com rot90Scale.setRotate(90 * SK_Scalar1); 135383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com rot90Scale.postScale(SK_Scalar1 / 4, SK_Scalar1 / 2); 1361878651990d7c9da72cf43481432232bbef3550dcommit-bot@chromium.org REPORTER_ASSERT(reporter, SK_Scalar1 / 4 == rot90Scale.getMinScale()); 1371878651990d7c9da72cf43481432232bbef3550dcommit-bot@chromium.org REPORTER_ASSERT(reporter, SK_Scalar1 / 2 == rot90Scale.getMaxScale()); 138383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com 139383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com SkMatrix rotate; 140383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com rotate.setRotate(128 * SK_Scalar1); 1411878651990d7c9da72cf43481432232bbef3550dcommit-bot@chromium.org REPORTER_ASSERT(reporter, SkScalarNearlyEqual(SK_Scalar1, rotate.getMinScale() ,SK_ScalarNearlyZero)); 1421878651990d7c9da72cf43481432232bbef3550dcommit-bot@chromium.org REPORTER_ASSERT(reporter, SkScalarNearlyEqual(SK_Scalar1, rotate.getMaxScale(), SK_ScalarNearlyZero)); 143383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com 144383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com SkMatrix translate; 145383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com translate.setTranslate(10 * SK_Scalar1, -5 * SK_Scalar1); 1461878651990d7c9da72cf43481432232bbef3550dcommit-bot@chromium.org REPORTER_ASSERT(reporter, SK_Scalar1 == translate.getMinScale()); 1471878651990d7c9da72cf43481432232bbef3550dcommit-bot@chromium.org REPORTER_ASSERT(reporter, SK_Scalar1 == translate.getMaxScale()); 148383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com 149383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com SkMatrix perspX; 150383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com perspX.reset(); 15107faed110275048c83a55ae39042da2c9d916108bungeman@google.com perspX.setPerspX(SkScalarToPersp(SK_Scalar1 / 1000)); 1521878651990d7c9da72cf43481432232bbef3550dcommit-bot@chromium.org REPORTER_ASSERT(reporter, -SK_Scalar1 == perspX.getMinScale()); 1531878651990d7c9da72cf43481432232bbef3550dcommit-bot@chromium.org REPORTER_ASSERT(reporter, -SK_Scalar1 == perspX.getMaxScale()); 154383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com 155383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com SkMatrix perspY; 156383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com perspY.reset(); 157cea9abb001b07eaf4340a78db708bfac9e8c68c2commit-bot@chromium.org perspY.setPerspY(SkScalarToPersp(-SK_Scalar1 / 500)); 1581878651990d7c9da72cf43481432232bbef3550dcommit-bot@chromium.org REPORTER_ASSERT(reporter, -SK_Scalar1 == perspY.getMinScale()); 1591878651990d7c9da72cf43481432232bbef3550dcommit-bot@chromium.org REPORTER_ASSERT(reporter, -SK_Scalar1 == perspY.getMaxScale()); 160383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com 161383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com SkMatrix baseMats[] = {scale, rot90Scale, rotate, 162383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com translate, perspX, perspY}; 163383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com SkMatrix mats[2*SK_ARRAY_COUNT(baseMats)]; 16483a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com for (size_t i = 0; i < SK_ARRAY_COUNT(baseMats); ++i) { 165383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com mats[i] = baseMats[i]; 166383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com bool invertable = mats[i].invert(&mats[i + SK_ARRAY_COUNT(baseMats)]); 167383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com REPORTER_ASSERT(reporter, invertable); 168383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com } 169e0e7cfe44bb9d66d76120a79e5275c294bacaa22commit-bot@chromium.org SkRandom rand; 170383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com for (int m = 0; m < 1000; ++m) { 171383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com SkMatrix mat; 172383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com mat.reset(); 173383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com for (int i = 0; i < 4; ++i) { 174383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com int x = rand.nextU() % SK_ARRAY_COUNT(mats); 175383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com mat.postConcat(mats[x]); 176383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com } 177d6176b0dcacb124539e0cfd051e6d93a9782f020rmistry@google.com 1781878651990d7c9da72cf43481432232bbef3550dcommit-bot@chromium.org SkScalar minScale = mat.getMinScale(); 1791878651990d7c9da72cf43481432232bbef3550dcommit-bot@chromium.org SkScalar maxScale = mat.getMaxScale(); 1801878651990d7c9da72cf43481432232bbef3550dcommit-bot@chromium.org REPORTER_ASSERT(reporter, (minScale < 0) == (maxScale < 0)); 1811878651990d7c9da72cf43481432232bbef3550dcommit-bot@chromium.org REPORTER_ASSERT(reporter, (maxScale < 0) == mat.hasPerspective()); 182383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com 183383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com if (mat.hasPerspective()) { 184383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com m -= 1; // try another non-persp matrix 185383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com continue; 186383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com } 187383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com 1881878651990d7c9da72cf43481432232bbef3550dcommit-bot@chromium.org // test a bunch of vectors. All should be scaled by between minScale and maxScale 189cea9abb001b07eaf4340a78db708bfac9e8c68c2commit-bot@chromium.org // (modulo some error) and we should find a vector that is scaled by almost each. 1901878651990d7c9da72cf43481432232bbef3550dcommit-bot@chromium.org static const SkScalar gVectorScaleTol = (105 * SK_Scalar1) / 100; 1911878651990d7c9da72cf43481432232bbef3550dcommit-bot@chromium.org static const SkScalar gCloseScaleTol = (97 * SK_Scalar1) / 100; 192cea9abb001b07eaf4340a78db708bfac9e8c68c2commit-bot@chromium.org SkScalar max = 0, min = SK_ScalarMax; 193383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com SkVector vectors[1000]; 19483a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com for (size_t i = 0; i < SK_ARRAY_COUNT(vectors); ++i) { 195383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com vectors[i].fX = rand.nextSScalar1(); 196383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com vectors[i].fY = rand.nextSScalar1(); 197383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com if (!vectors[i].normalize()) { 198383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com i -= 1; 199383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com continue; 200383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com } 201383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com } 202383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com mat.mapVectors(vectors, SK_ARRAY_COUNT(vectors)); 20383a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com for (size_t i = 0; i < SK_ARRAY_COUNT(vectors); ++i) { 204383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com SkScalar d = vectors[i].length(); 2051878651990d7c9da72cf43481432232bbef3550dcommit-bot@chromium.org REPORTER_ASSERT(reporter, SkScalarDiv(d, maxScale) < gVectorScaleTol); 2061878651990d7c9da72cf43481432232bbef3550dcommit-bot@chromium.org REPORTER_ASSERT(reporter, SkScalarDiv(minScale, d) < gVectorScaleTol); 207383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com if (max < d) { 208383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com max = d; 209383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com } 210cea9abb001b07eaf4340a78db708bfac9e8c68c2commit-bot@chromium.org if (min > d) { 211cea9abb001b07eaf4340a78db708bfac9e8c68c2commit-bot@chromium.org min = d; 212cea9abb001b07eaf4340a78db708bfac9e8c68c2commit-bot@chromium.org } 213383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com } 2141878651990d7c9da72cf43481432232bbef3550dcommit-bot@chromium.org REPORTER_ASSERT(reporter, SkScalarDiv(max, maxScale) >= gCloseScaleTol); 2151878651990d7c9da72cf43481432232bbef3550dcommit-bot@chromium.org REPORTER_ASSERT(reporter, SkScalarDiv(minScale, min) >= gCloseScaleTol); 216383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com } 217383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com} 218383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com 21946d3d39e65e0b3ea2ad7c91c176ccafb4df0fa24jvanverth@google.comstatic void test_matrix_is_similarity(skiatest::Reporter* reporter) { 22069afee1c8fd22affc873890cfcf766d6f5cfdcc2bsalomon@google.com SkMatrix mat; 22169afee1c8fd22affc873890cfcf766d6f5cfdcc2bsalomon@google.com 22269afee1c8fd22affc873890cfcf766d6f5cfdcc2bsalomon@google.com // identity 22369afee1c8fd22affc873890cfcf766d6f5cfdcc2bsalomon@google.com mat.setIdentity(); 22446d3d39e65e0b3ea2ad7c91c176ccafb4df0fa24jvanverth@google.com REPORTER_ASSERT(reporter, mat.isSimilarity()); 22569afee1c8fd22affc873890cfcf766d6f5cfdcc2bsalomon@google.com 22669afee1c8fd22affc873890cfcf766d6f5cfdcc2bsalomon@google.com // translation only 22769afee1c8fd22affc873890cfcf766d6f5cfdcc2bsalomon@google.com mat.reset(); 22869afee1c8fd22affc873890cfcf766d6f5cfdcc2bsalomon@google.com mat.setTranslate(SkIntToScalar(100), SkIntToScalar(100)); 22946d3d39e65e0b3ea2ad7c91c176ccafb4df0fa24jvanverth@google.com REPORTER_ASSERT(reporter, mat.isSimilarity()); 23069afee1c8fd22affc873890cfcf766d6f5cfdcc2bsalomon@google.com 23169afee1c8fd22affc873890cfcf766d6f5cfdcc2bsalomon@google.com // scale with same size 23269afee1c8fd22affc873890cfcf766d6f5cfdcc2bsalomon@google.com mat.reset(); 23369afee1c8fd22affc873890cfcf766d6f5cfdcc2bsalomon@google.com mat.setScale(SkIntToScalar(15), SkIntToScalar(15)); 23446d3d39e65e0b3ea2ad7c91c176ccafb4df0fa24jvanverth@google.com REPORTER_ASSERT(reporter, mat.isSimilarity()); 23569afee1c8fd22affc873890cfcf766d6f5cfdcc2bsalomon@google.com 23669afee1c8fd22affc873890cfcf766d6f5cfdcc2bsalomon@google.com // scale with one negative 23769afee1c8fd22affc873890cfcf766d6f5cfdcc2bsalomon@google.com mat.reset(); 23869afee1c8fd22affc873890cfcf766d6f5cfdcc2bsalomon@google.com mat.setScale(SkIntToScalar(-15), SkIntToScalar(15)); 23946d3d39e65e0b3ea2ad7c91c176ccafb4df0fa24jvanverth@google.com REPORTER_ASSERT(reporter, mat.isSimilarity()); 24069afee1c8fd22affc873890cfcf766d6f5cfdcc2bsalomon@google.com 24169afee1c8fd22affc873890cfcf766d6f5cfdcc2bsalomon@google.com // scale with different size 24269afee1c8fd22affc873890cfcf766d6f5cfdcc2bsalomon@google.com mat.reset(); 24369afee1c8fd22affc873890cfcf766d6f5cfdcc2bsalomon@google.com mat.setScale(SkIntToScalar(15), SkIntToScalar(20)); 24446d3d39e65e0b3ea2ad7c91c176ccafb4df0fa24jvanverth@google.com REPORTER_ASSERT(reporter, !mat.isSimilarity()); 24569afee1c8fd22affc873890cfcf766d6f5cfdcc2bsalomon@google.com 24669afee1c8fd22affc873890cfcf766d6f5cfdcc2bsalomon@google.com // scale with same size at a pivot point 24769afee1c8fd22affc873890cfcf766d6f5cfdcc2bsalomon@google.com mat.reset(); 24869afee1c8fd22affc873890cfcf766d6f5cfdcc2bsalomon@google.com mat.setScale(SkIntToScalar(15), SkIntToScalar(15), 24969afee1c8fd22affc873890cfcf766d6f5cfdcc2bsalomon@google.com SkIntToScalar(2), SkIntToScalar(2)); 25046d3d39e65e0b3ea2ad7c91c176ccafb4df0fa24jvanverth@google.com REPORTER_ASSERT(reporter, mat.isSimilarity()); 25169afee1c8fd22affc873890cfcf766d6f5cfdcc2bsalomon@google.com 25269afee1c8fd22affc873890cfcf766d6f5cfdcc2bsalomon@google.com // scale with different size at a pivot point 25369afee1c8fd22affc873890cfcf766d6f5cfdcc2bsalomon@google.com mat.reset(); 25469afee1c8fd22affc873890cfcf766d6f5cfdcc2bsalomon@google.com mat.setScale(SkIntToScalar(15), SkIntToScalar(20), 25569afee1c8fd22affc873890cfcf766d6f5cfdcc2bsalomon@google.com SkIntToScalar(2), SkIntToScalar(2)); 25646d3d39e65e0b3ea2ad7c91c176ccafb4df0fa24jvanverth@google.com REPORTER_ASSERT(reporter, !mat.isSimilarity()); 25769afee1c8fd22affc873890cfcf766d6f5cfdcc2bsalomon@google.com 25869afee1c8fd22affc873890cfcf766d6f5cfdcc2bsalomon@google.com // skew with same size 25969afee1c8fd22affc873890cfcf766d6f5cfdcc2bsalomon@google.com mat.reset(); 26069afee1c8fd22affc873890cfcf766d6f5cfdcc2bsalomon@google.com mat.setSkew(SkIntToScalar(15), SkIntToScalar(15)); 26146d3d39e65e0b3ea2ad7c91c176ccafb4df0fa24jvanverth@google.com REPORTER_ASSERT(reporter, !mat.isSimilarity()); 26269afee1c8fd22affc873890cfcf766d6f5cfdcc2bsalomon@google.com 26369afee1c8fd22affc873890cfcf766d6f5cfdcc2bsalomon@google.com // skew with different size 26469afee1c8fd22affc873890cfcf766d6f5cfdcc2bsalomon@google.com mat.reset(); 26569afee1c8fd22affc873890cfcf766d6f5cfdcc2bsalomon@google.com mat.setSkew(SkIntToScalar(15), SkIntToScalar(20)); 26646d3d39e65e0b3ea2ad7c91c176ccafb4df0fa24jvanverth@google.com REPORTER_ASSERT(reporter, !mat.isSimilarity()); 26769afee1c8fd22affc873890cfcf766d6f5cfdcc2bsalomon@google.com 26869afee1c8fd22affc873890cfcf766d6f5cfdcc2bsalomon@google.com // skew with same size at a pivot point 26969afee1c8fd22affc873890cfcf766d6f5cfdcc2bsalomon@google.com mat.reset(); 27069afee1c8fd22affc873890cfcf766d6f5cfdcc2bsalomon@google.com mat.setSkew(SkIntToScalar(15), SkIntToScalar(15), 27169afee1c8fd22affc873890cfcf766d6f5cfdcc2bsalomon@google.com SkIntToScalar(2), SkIntToScalar(2)); 27246d3d39e65e0b3ea2ad7c91c176ccafb4df0fa24jvanverth@google.com REPORTER_ASSERT(reporter, !mat.isSimilarity()); 27369afee1c8fd22affc873890cfcf766d6f5cfdcc2bsalomon@google.com 27469afee1c8fd22affc873890cfcf766d6f5cfdcc2bsalomon@google.com // skew with different size at a pivot point 27569afee1c8fd22affc873890cfcf766d6f5cfdcc2bsalomon@google.com mat.reset(); 27669afee1c8fd22affc873890cfcf766d6f5cfdcc2bsalomon@google.com mat.setSkew(SkIntToScalar(15), SkIntToScalar(20), 27769afee1c8fd22affc873890cfcf766d6f5cfdcc2bsalomon@google.com SkIntToScalar(2), SkIntToScalar(2)); 27846d3d39e65e0b3ea2ad7c91c176ccafb4df0fa24jvanverth@google.com REPORTER_ASSERT(reporter, !mat.isSimilarity()); 27969afee1c8fd22affc873890cfcf766d6f5cfdcc2bsalomon@google.com 28069afee1c8fd22affc873890cfcf766d6f5cfdcc2bsalomon@google.com // perspective x 28169afee1c8fd22affc873890cfcf766d6f5cfdcc2bsalomon@google.com mat.reset(); 28269afee1c8fd22affc873890cfcf766d6f5cfdcc2bsalomon@google.com mat.setPerspX(SkScalarToPersp(SK_Scalar1 / 2)); 28346d3d39e65e0b3ea2ad7c91c176ccafb4df0fa24jvanverth@google.com REPORTER_ASSERT(reporter, !mat.isSimilarity()); 28469afee1c8fd22affc873890cfcf766d6f5cfdcc2bsalomon@google.com 28569afee1c8fd22affc873890cfcf766d6f5cfdcc2bsalomon@google.com // perspective y 28669afee1c8fd22affc873890cfcf766d6f5cfdcc2bsalomon@google.com mat.reset(); 28769afee1c8fd22affc873890cfcf766d6f5cfdcc2bsalomon@google.com mat.setPerspY(SkScalarToPersp(SK_Scalar1 / 2)); 28846d3d39e65e0b3ea2ad7c91c176ccafb4df0fa24jvanverth@google.com REPORTER_ASSERT(reporter, !mat.isSimilarity()); 28969afee1c8fd22affc873890cfcf766d6f5cfdcc2bsalomon@google.com 29069afee1c8fd22affc873890cfcf766d6f5cfdcc2bsalomon@google.com // rotate 29169afee1c8fd22affc873890cfcf766d6f5cfdcc2bsalomon@google.com for (int angle = 0; angle < 360; ++angle) { 29269afee1c8fd22affc873890cfcf766d6f5cfdcc2bsalomon@google.com mat.reset(); 29369afee1c8fd22affc873890cfcf766d6f5cfdcc2bsalomon@google.com mat.setRotate(SkIntToScalar(angle)); 29446d3d39e65e0b3ea2ad7c91c176ccafb4df0fa24jvanverth@google.com REPORTER_ASSERT(reporter, mat.isSimilarity()); 29569afee1c8fd22affc873890cfcf766d6f5cfdcc2bsalomon@google.com } 29669afee1c8fd22affc873890cfcf766d6f5cfdcc2bsalomon@google.com 29769afee1c8fd22affc873890cfcf766d6f5cfdcc2bsalomon@google.com // see if there are any accumulated precision issues 29869afee1c8fd22affc873890cfcf766d6f5cfdcc2bsalomon@google.com mat.reset(); 29969afee1c8fd22affc873890cfcf766d6f5cfdcc2bsalomon@google.com for (int i = 1; i < 360; i++) { 30069afee1c8fd22affc873890cfcf766d6f5cfdcc2bsalomon@google.com mat.postRotate(SkIntToScalar(1)); 30169afee1c8fd22affc873890cfcf766d6f5cfdcc2bsalomon@google.com } 30246d3d39e65e0b3ea2ad7c91c176ccafb4df0fa24jvanverth@google.com REPORTER_ASSERT(reporter, mat.isSimilarity()); 30369afee1c8fd22affc873890cfcf766d6f5cfdcc2bsalomon@google.com 30469afee1c8fd22affc873890cfcf766d6f5cfdcc2bsalomon@google.com // rotate + translate 30569afee1c8fd22affc873890cfcf766d6f5cfdcc2bsalomon@google.com mat.reset(); 30669afee1c8fd22affc873890cfcf766d6f5cfdcc2bsalomon@google.com mat.setRotate(SkIntToScalar(30)); 30769afee1c8fd22affc873890cfcf766d6f5cfdcc2bsalomon@google.com mat.postTranslate(SkIntToScalar(10), SkIntToScalar(20)); 30846d3d39e65e0b3ea2ad7c91c176ccafb4df0fa24jvanverth@google.com REPORTER_ASSERT(reporter, mat.isSimilarity()); 30969afee1c8fd22affc873890cfcf766d6f5cfdcc2bsalomon@google.com 31069afee1c8fd22affc873890cfcf766d6f5cfdcc2bsalomon@google.com // rotate + uniform scale 31169afee1c8fd22affc873890cfcf766d6f5cfdcc2bsalomon@google.com mat.reset(); 31269afee1c8fd22affc873890cfcf766d6f5cfdcc2bsalomon@google.com mat.setRotate(SkIntToScalar(30)); 31369afee1c8fd22affc873890cfcf766d6f5cfdcc2bsalomon@google.com mat.postScale(SkIntToScalar(2), SkIntToScalar(2)); 31446d3d39e65e0b3ea2ad7c91c176ccafb4df0fa24jvanverth@google.com REPORTER_ASSERT(reporter, mat.isSimilarity()); 31569afee1c8fd22affc873890cfcf766d6f5cfdcc2bsalomon@google.com 31669afee1c8fd22affc873890cfcf766d6f5cfdcc2bsalomon@google.com // rotate + non-uniform scale 31769afee1c8fd22affc873890cfcf766d6f5cfdcc2bsalomon@google.com mat.reset(); 31869afee1c8fd22affc873890cfcf766d6f5cfdcc2bsalomon@google.com mat.setRotate(SkIntToScalar(30)); 31969afee1c8fd22affc873890cfcf766d6f5cfdcc2bsalomon@google.com mat.postScale(SkIntToScalar(3), SkIntToScalar(2)); 32046d3d39e65e0b3ea2ad7c91c176ccafb4df0fa24jvanverth@google.com REPORTER_ASSERT(reporter, !mat.isSimilarity()); 32169afee1c8fd22affc873890cfcf766d6f5cfdcc2bsalomon@google.com 32269afee1c8fd22affc873890cfcf766d6f5cfdcc2bsalomon@google.com // all zero 32369afee1c8fd22affc873890cfcf766d6f5cfdcc2bsalomon@google.com mat.setAll(0, 0, 0, 0, 0, 0, 0, 0, 0); 32446d3d39e65e0b3ea2ad7c91c176ccafb4df0fa24jvanverth@google.com REPORTER_ASSERT(reporter, !mat.isSimilarity()); 32569afee1c8fd22affc873890cfcf766d6f5cfdcc2bsalomon@google.com 32669afee1c8fd22affc873890cfcf766d6f5cfdcc2bsalomon@google.com // all zero except perspective 32769afee1c8fd22affc873890cfcf766d6f5cfdcc2bsalomon@google.com mat.setAll(0, 0, 0, 0, 0, 0, 0, 0, SK_Scalar1); 32846d3d39e65e0b3ea2ad7c91c176ccafb4df0fa24jvanverth@google.com REPORTER_ASSERT(reporter, !mat.isSimilarity()); 32969afee1c8fd22affc873890cfcf766d6f5cfdcc2bsalomon@google.com 33069afee1c8fd22affc873890cfcf766d6f5cfdcc2bsalomon@google.com // scales zero, only skews 33169afee1c8fd22affc873890cfcf766d6f5cfdcc2bsalomon@google.com mat.setAll(0, SK_Scalar1, 0, 33269afee1c8fd22affc873890cfcf766d6f5cfdcc2bsalomon@google.com SK_Scalar1, 0, 0, 33369afee1c8fd22affc873890cfcf766d6f5cfdcc2bsalomon@google.com 0, 0, SkMatrix::I()[8]); 33446d3d39e65e0b3ea2ad7c91c176ccafb4df0fa24jvanverth@google.com REPORTER_ASSERT(reporter, mat.isSimilarity()); 33569afee1c8fd22affc873890cfcf766d6f5cfdcc2bsalomon@google.com} 33669afee1c8fd22affc873890cfcf766d6f5cfdcc2bsalomon@google.com 33708284e4d2421fb6c1978e68038a3568711cd9877commit-bot@chromium.org// For test_matrix_decomposition, below. 3385c561cb8d8151d38c69128345106cbf225033a1askia.committer@gmail.comstatic bool scalar_nearly_equal_relative(SkScalar a, SkScalar b, 33908284e4d2421fb6c1978e68038a3568711cd9877commit-bot@chromium.org SkScalar tolerance = SK_ScalarNearlyZero) { 34008284e4d2421fb6c1978e68038a3568711cd9877commit-bot@chromium.org // from Bruce Dawson 3415b2e2640ed345c4670b99b349f62eb6f9446ec1ecommit-bot@chromium.org // absolute check 34208284e4d2421fb6c1978e68038a3568711cd9877commit-bot@chromium.org SkScalar diff = SkScalarAbs(a - b); 34308284e4d2421fb6c1978e68038a3568711cd9877commit-bot@chromium.org if (diff < tolerance) { 34408284e4d2421fb6c1978e68038a3568711cd9877commit-bot@chromium.org return true; 34508284e4d2421fb6c1978e68038a3568711cd9877commit-bot@chromium.org } 34608284e4d2421fb6c1978e68038a3568711cd9877commit-bot@chromium.org 3475b2e2640ed345c4670b99b349f62eb6f9446ec1ecommit-bot@chromium.org // relative check 34808284e4d2421fb6c1978e68038a3568711cd9877commit-bot@chromium.org a = SkScalarAbs(a); 34908284e4d2421fb6c1978e68038a3568711cd9877commit-bot@chromium.org b = SkScalarAbs(b); 35008284e4d2421fb6c1978e68038a3568711cd9877commit-bot@chromium.org SkScalar largest = (b > a) ? b : a; 35108284e4d2421fb6c1978e68038a3568711cd9877commit-bot@chromium.org 35208284e4d2421fb6c1978e68038a3568711cd9877commit-bot@chromium.org if (diff <= largest*tolerance) { 35308284e4d2421fb6c1978e68038a3568711cd9877commit-bot@chromium.org return true; 35408284e4d2421fb6c1978e68038a3568711cd9877commit-bot@chromium.org } 35508284e4d2421fb6c1978e68038a3568711cd9877commit-bot@chromium.org 35608284e4d2421fb6c1978e68038a3568711cd9877commit-bot@chromium.org return false; 35708284e4d2421fb6c1978e68038a3568711cd9877commit-bot@chromium.org} 35808284e4d2421fb6c1978e68038a3568711cd9877commit-bot@chromium.org 3595b2e2640ed345c4670b99b349f62eb6f9446ec1ecommit-bot@chromium.orgstatic bool check_matrix_recomposition(const SkMatrix& mat, 3605b2e2640ed345c4670b99b349f62eb6f9446ec1ecommit-bot@chromium.org const SkPoint& rotation1, 3615b2e2640ed345c4670b99b349f62eb6f9446ec1ecommit-bot@chromium.org const SkPoint& scale, 3625b2e2640ed345c4670b99b349f62eb6f9446ec1ecommit-bot@chromium.org const SkPoint& rotation2) { 3635b2e2640ed345c4670b99b349f62eb6f9446ec1ecommit-bot@chromium.org SkScalar c1 = rotation1.fX; 3645b2e2640ed345c4670b99b349f62eb6f9446ec1ecommit-bot@chromium.org SkScalar s1 = rotation1.fY; 3655b2e2640ed345c4670b99b349f62eb6f9446ec1ecommit-bot@chromium.org SkScalar scaleX = scale.fX; 3665b2e2640ed345c4670b99b349f62eb6f9446ec1ecommit-bot@chromium.org SkScalar scaleY = scale.fY; 3675b2e2640ed345c4670b99b349f62eb6f9446ec1ecommit-bot@chromium.org SkScalar c2 = rotation2.fX; 3685b2e2640ed345c4670b99b349f62eb6f9446ec1ecommit-bot@chromium.org SkScalar s2 = rotation2.fY; 36985092f05c406ed5a0c65ff576816924c1a6b903bskia.committer@gmail.com 3705b2e2640ed345c4670b99b349f62eb6f9446ec1ecommit-bot@chromium.org // We do a relative check here because large scale factors cause problems with an absolute check 3715b2e2640ed345c4670b99b349f62eb6f9446ec1ecommit-bot@chromium.org bool result = scalar_nearly_equal_relative(mat[SkMatrix::kMScaleX], 3725b2e2640ed345c4670b99b349f62eb6f9446ec1ecommit-bot@chromium.org scaleX*c1*c2 - scaleY*s1*s2) && 3735b2e2640ed345c4670b99b349f62eb6f9446ec1ecommit-bot@chromium.org scalar_nearly_equal_relative(mat[SkMatrix::kMSkewX], 3745b2e2640ed345c4670b99b349f62eb6f9446ec1ecommit-bot@chromium.org -scaleX*s1*c2 - scaleY*c1*s2) && 3755b2e2640ed345c4670b99b349f62eb6f9446ec1ecommit-bot@chromium.org scalar_nearly_equal_relative(mat[SkMatrix::kMSkewY], 3765b2e2640ed345c4670b99b349f62eb6f9446ec1ecommit-bot@chromium.org scaleX*c1*s2 + scaleY*s1*c2) && 3775b2e2640ed345c4670b99b349f62eb6f9446ec1ecommit-bot@chromium.org scalar_nearly_equal_relative(mat[SkMatrix::kMScaleY], 3785b2e2640ed345c4670b99b349f62eb6f9446ec1ecommit-bot@chromium.org -scaleX*s1*s2 + scaleY*c1*c2); 3795b2e2640ed345c4670b99b349f62eb6f9446ec1ecommit-bot@chromium.org return result; 3805b2e2640ed345c4670b99b349f62eb6f9446ec1ecommit-bot@chromium.org} 3815b2e2640ed345c4670b99b349f62eb6f9446ec1ecommit-bot@chromium.org 38208284e4d2421fb6c1978e68038a3568711cd9877commit-bot@chromium.orgstatic void test_matrix_decomposition(skiatest::Reporter* reporter) { 38308284e4d2421fb6c1978e68038a3568711cd9877commit-bot@chromium.org SkMatrix mat; 3845b2e2640ed345c4670b99b349f62eb6f9446ec1ecommit-bot@chromium.org SkPoint rotation1, scale, rotation2; 38508284e4d2421fb6c1978e68038a3568711cd9877commit-bot@chromium.org 38608284e4d2421fb6c1978e68038a3568711cd9877commit-bot@chromium.org const float kRotation0 = 15.5f; 38708284e4d2421fb6c1978e68038a3568711cd9877commit-bot@chromium.org const float kRotation1 = -50.f; 38808284e4d2421fb6c1978e68038a3568711cd9877commit-bot@chromium.org const float kScale0 = 5000.f; 38908284e4d2421fb6c1978e68038a3568711cd9877commit-bot@chromium.org const float kScale1 = 0.001f; 39008284e4d2421fb6c1978e68038a3568711cd9877commit-bot@chromium.org 39108284e4d2421fb6c1978e68038a3568711cd9877commit-bot@chromium.org // identity 39208284e4d2421fb6c1978e68038a3568711cd9877commit-bot@chromium.org mat.reset(); 3935b2e2640ed345c4670b99b349f62eb6f9446ec1ecommit-bot@chromium.org REPORTER_ASSERT(reporter, SkDecomposeUpper2x2(mat, &rotation1, &scale, &rotation2)); 3945b2e2640ed345c4670b99b349f62eb6f9446ec1ecommit-bot@chromium.org REPORTER_ASSERT(reporter, check_matrix_recomposition(mat, rotation1, scale, rotation2)); 39508284e4d2421fb6c1978e68038a3568711cd9877commit-bot@chromium.org // make sure it doesn't crash if we pass in NULLs 3965b2e2640ed345c4670b99b349f62eb6f9446ec1ecommit-bot@chromium.org REPORTER_ASSERT(reporter, SkDecomposeUpper2x2(mat, NULL, NULL, NULL)); 39708284e4d2421fb6c1978e68038a3568711cd9877commit-bot@chromium.org 39808284e4d2421fb6c1978e68038a3568711cd9877commit-bot@chromium.org // rotation only 39908284e4d2421fb6c1978e68038a3568711cd9877commit-bot@chromium.org mat.setRotate(kRotation0); 4005b2e2640ed345c4670b99b349f62eb6f9446ec1ecommit-bot@chromium.org REPORTER_ASSERT(reporter, SkDecomposeUpper2x2(mat, &rotation1, &scale, &rotation2)); 4015b2e2640ed345c4670b99b349f62eb6f9446ec1ecommit-bot@chromium.org REPORTER_ASSERT(reporter, check_matrix_recomposition(mat, rotation1, scale, rotation2)); 40208284e4d2421fb6c1978e68038a3568711cd9877commit-bot@chromium.org 40308284e4d2421fb6c1978e68038a3568711cd9877commit-bot@chromium.org // uniform scale only 40408284e4d2421fb6c1978e68038a3568711cd9877commit-bot@chromium.org mat.setScale(kScale0, kScale0); 4055b2e2640ed345c4670b99b349f62eb6f9446ec1ecommit-bot@chromium.org REPORTER_ASSERT(reporter, SkDecomposeUpper2x2(mat, &rotation1, &scale, &rotation2)); 4065b2e2640ed345c4670b99b349f62eb6f9446ec1ecommit-bot@chromium.org REPORTER_ASSERT(reporter, check_matrix_recomposition(mat, rotation1, scale, rotation2)); 40708284e4d2421fb6c1978e68038a3568711cd9877commit-bot@chromium.org 40808284e4d2421fb6c1978e68038a3568711cd9877commit-bot@chromium.org // anisotropic scale only 40908284e4d2421fb6c1978e68038a3568711cd9877commit-bot@chromium.org mat.setScale(kScale1, kScale0); 4105b2e2640ed345c4670b99b349f62eb6f9446ec1ecommit-bot@chromium.org REPORTER_ASSERT(reporter, SkDecomposeUpper2x2(mat, &rotation1, &scale, &rotation2)); 4115b2e2640ed345c4670b99b349f62eb6f9446ec1ecommit-bot@chromium.org REPORTER_ASSERT(reporter, check_matrix_recomposition(mat, rotation1, scale, rotation2)); 41208284e4d2421fb6c1978e68038a3568711cd9877commit-bot@chromium.org 41308284e4d2421fb6c1978e68038a3568711cd9877commit-bot@chromium.org // rotation then uniform scale 41408284e4d2421fb6c1978e68038a3568711cd9877commit-bot@chromium.org mat.setRotate(kRotation1); 41508284e4d2421fb6c1978e68038a3568711cd9877commit-bot@chromium.org mat.postScale(kScale0, kScale0); 4165b2e2640ed345c4670b99b349f62eb6f9446ec1ecommit-bot@chromium.org REPORTER_ASSERT(reporter, SkDecomposeUpper2x2(mat, &rotation1, &scale, &rotation2)); 4175b2e2640ed345c4670b99b349f62eb6f9446ec1ecommit-bot@chromium.org REPORTER_ASSERT(reporter, check_matrix_recomposition(mat, rotation1, scale, rotation2)); 41808284e4d2421fb6c1978e68038a3568711cd9877commit-bot@chromium.org 41908284e4d2421fb6c1978e68038a3568711cd9877commit-bot@chromium.org // uniform scale then rotation 42008284e4d2421fb6c1978e68038a3568711cd9877commit-bot@chromium.org mat.setScale(kScale0, kScale0); 42108284e4d2421fb6c1978e68038a3568711cd9877commit-bot@chromium.org mat.postRotate(kRotation1); 4225b2e2640ed345c4670b99b349f62eb6f9446ec1ecommit-bot@chromium.org REPORTER_ASSERT(reporter, SkDecomposeUpper2x2(mat, &rotation1, &scale, &rotation2)); 4235b2e2640ed345c4670b99b349f62eb6f9446ec1ecommit-bot@chromium.org REPORTER_ASSERT(reporter, check_matrix_recomposition(mat, rotation1, scale, rotation2)); 42408284e4d2421fb6c1978e68038a3568711cd9877commit-bot@chromium.org 42508284e4d2421fb6c1978e68038a3568711cd9877commit-bot@chromium.org // rotation then uniform scale+reflection 42608284e4d2421fb6c1978e68038a3568711cd9877commit-bot@chromium.org mat.setRotate(kRotation0); 42708284e4d2421fb6c1978e68038a3568711cd9877commit-bot@chromium.org mat.postScale(kScale1, -kScale1); 4285b2e2640ed345c4670b99b349f62eb6f9446ec1ecommit-bot@chromium.org REPORTER_ASSERT(reporter, SkDecomposeUpper2x2(mat, &rotation1, &scale, &rotation2)); 4295b2e2640ed345c4670b99b349f62eb6f9446ec1ecommit-bot@chromium.org REPORTER_ASSERT(reporter, check_matrix_recomposition(mat, rotation1, scale, rotation2)); 43008284e4d2421fb6c1978e68038a3568711cd9877commit-bot@chromium.org 43108284e4d2421fb6c1978e68038a3568711cd9877commit-bot@chromium.org // uniform scale+reflection, then rotate 43208284e4d2421fb6c1978e68038a3568711cd9877commit-bot@chromium.org mat.setScale(kScale0, -kScale0); 43308284e4d2421fb6c1978e68038a3568711cd9877commit-bot@chromium.org mat.postRotate(kRotation1); 4345b2e2640ed345c4670b99b349f62eb6f9446ec1ecommit-bot@chromium.org REPORTER_ASSERT(reporter, SkDecomposeUpper2x2(mat, &rotation1, &scale, &rotation2)); 4355b2e2640ed345c4670b99b349f62eb6f9446ec1ecommit-bot@chromium.org REPORTER_ASSERT(reporter, check_matrix_recomposition(mat, rotation1, scale, rotation2)); 43608284e4d2421fb6c1978e68038a3568711cd9877commit-bot@chromium.org 43708284e4d2421fb6c1978e68038a3568711cd9877commit-bot@chromium.org // rotation then anisotropic scale 43808284e4d2421fb6c1978e68038a3568711cd9877commit-bot@chromium.org mat.setRotate(kRotation1); 43908284e4d2421fb6c1978e68038a3568711cd9877commit-bot@chromium.org mat.postScale(kScale1, kScale0); 4405b2e2640ed345c4670b99b349f62eb6f9446ec1ecommit-bot@chromium.org REPORTER_ASSERT(reporter, SkDecomposeUpper2x2(mat, &rotation1, &scale, &rotation2)); 4415b2e2640ed345c4670b99b349f62eb6f9446ec1ecommit-bot@chromium.org REPORTER_ASSERT(reporter, check_matrix_recomposition(mat, rotation1, scale, rotation2)); 44208284e4d2421fb6c1978e68038a3568711cd9877commit-bot@chromium.org 4435b2e2640ed345c4670b99b349f62eb6f9446ec1ecommit-bot@chromium.org // rotation then anisotropic scale 4445b2e2640ed345c4670b99b349f62eb6f9446ec1ecommit-bot@chromium.org mat.setRotate(90); 4455b2e2640ed345c4670b99b349f62eb6f9446ec1ecommit-bot@chromium.org mat.postScale(kScale1, kScale0); 4465b2e2640ed345c4670b99b349f62eb6f9446ec1ecommit-bot@chromium.org REPORTER_ASSERT(reporter, SkDecomposeUpper2x2(mat, &rotation1, &scale, &rotation2)); 4475b2e2640ed345c4670b99b349f62eb6f9446ec1ecommit-bot@chromium.org REPORTER_ASSERT(reporter, check_matrix_recomposition(mat, rotation1, scale, rotation2)); 44885092f05c406ed5a0c65ff576816924c1a6b903bskia.committer@gmail.com 44908284e4d2421fb6c1978e68038a3568711cd9877commit-bot@chromium.org // anisotropic scale then rotation 45008284e4d2421fb6c1978e68038a3568711cd9877commit-bot@chromium.org mat.setScale(kScale1, kScale0); 45108284e4d2421fb6c1978e68038a3568711cd9877commit-bot@chromium.org mat.postRotate(kRotation0); 4525b2e2640ed345c4670b99b349f62eb6f9446ec1ecommit-bot@chromium.org REPORTER_ASSERT(reporter, SkDecomposeUpper2x2(mat, &rotation1, &scale, &rotation2)); 4535b2e2640ed345c4670b99b349f62eb6f9446ec1ecommit-bot@chromium.org REPORTER_ASSERT(reporter, check_matrix_recomposition(mat, rotation1, scale, rotation2)); 45485092f05c406ed5a0c65ff576816924c1a6b903bskia.committer@gmail.com 4555b2e2640ed345c4670b99b349f62eb6f9446ec1ecommit-bot@chromium.org // anisotropic scale then rotation 4565b2e2640ed345c4670b99b349f62eb6f9446ec1ecommit-bot@chromium.org mat.setScale(kScale1, kScale0); 4575b2e2640ed345c4670b99b349f62eb6f9446ec1ecommit-bot@chromium.org mat.postRotate(90); 4585b2e2640ed345c4670b99b349f62eb6f9446ec1ecommit-bot@chromium.org REPORTER_ASSERT(reporter, SkDecomposeUpper2x2(mat, &rotation1, &scale, &rotation2)); 4595b2e2640ed345c4670b99b349f62eb6f9446ec1ecommit-bot@chromium.org REPORTER_ASSERT(reporter, check_matrix_recomposition(mat, rotation1, scale, rotation2)); 46008284e4d2421fb6c1978e68038a3568711cd9877commit-bot@chromium.org 46108284e4d2421fb6c1978e68038a3568711cd9877commit-bot@chromium.org // rotation, uniform scale, then different rotation 46208284e4d2421fb6c1978e68038a3568711cd9877commit-bot@chromium.org mat.setRotate(kRotation1); 46308284e4d2421fb6c1978e68038a3568711cd9877commit-bot@chromium.org mat.postScale(kScale0, kScale0); 46408284e4d2421fb6c1978e68038a3568711cd9877commit-bot@chromium.org mat.postRotate(kRotation0); 4655b2e2640ed345c4670b99b349f62eb6f9446ec1ecommit-bot@chromium.org REPORTER_ASSERT(reporter, SkDecomposeUpper2x2(mat, &rotation1, &scale, &rotation2)); 4665b2e2640ed345c4670b99b349f62eb6f9446ec1ecommit-bot@chromium.org REPORTER_ASSERT(reporter, check_matrix_recomposition(mat, rotation1, scale, rotation2)); 46708284e4d2421fb6c1978e68038a3568711cd9877commit-bot@chromium.org 46808284e4d2421fb6c1978e68038a3568711cd9877commit-bot@chromium.org // rotation, anisotropic scale, then different rotation 46908284e4d2421fb6c1978e68038a3568711cd9877commit-bot@chromium.org mat.setRotate(kRotation0); 47008284e4d2421fb6c1978e68038a3568711cd9877commit-bot@chromium.org mat.postScale(kScale1, kScale0); 47108284e4d2421fb6c1978e68038a3568711cd9877commit-bot@chromium.org mat.postRotate(kRotation1); 4725b2e2640ed345c4670b99b349f62eb6f9446ec1ecommit-bot@chromium.org REPORTER_ASSERT(reporter, SkDecomposeUpper2x2(mat, &rotation1, &scale, &rotation2)); 4735b2e2640ed345c4670b99b349f62eb6f9446ec1ecommit-bot@chromium.org REPORTER_ASSERT(reporter, check_matrix_recomposition(mat, rotation1, scale, rotation2)); 47485092f05c406ed5a0c65ff576816924c1a6b903bskia.committer@gmail.com 4755b2e2640ed345c4670b99b349f62eb6f9446ec1ecommit-bot@chromium.org // rotation, anisotropic scale + reflection, then different rotation 4765b2e2640ed345c4670b99b349f62eb6f9446ec1ecommit-bot@chromium.org mat.setRotate(kRotation0); 4775b2e2640ed345c4670b99b349f62eb6f9446ec1ecommit-bot@chromium.org mat.postScale(-kScale1, kScale0); 4785b2e2640ed345c4670b99b349f62eb6f9446ec1ecommit-bot@chromium.org mat.postRotate(kRotation1); 4795b2e2640ed345c4670b99b349f62eb6f9446ec1ecommit-bot@chromium.org REPORTER_ASSERT(reporter, SkDecomposeUpper2x2(mat, &rotation1, &scale, &rotation2)); 4805b2e2640ed345c4670b99b349f62eb6f9446ec1ecommit-bot@chromium.org REPORTER_ASSERT(reporter, check_matrix_recomposition(mat, rotation1, scale, rotation2)); 48108284e4d2421fb6c1978e68038a3568711cd9877commit-bot@chromium.org 48208284e4d2421fb6c1978e68038a3568711cd9877commit-bot@chromium.org // try some random matrices 483e0e7cfe44bb9d66d76120a79e5275c294bacaa22commit-bot@chromium.org SkRandom rand; 48408284e4d2421fb6c1978e68038a3568711cd9877commit-bot@chromium.org for (int m = 0; m < 1000; ++m) { 4855b2e2640ed345c4670b99b349f62eb6f9446ec1ecommit-bot@chromium.org SkScalar rot0 = rand.nextRangeF(-180, 180); 48608284e4d2421fb6c1978e68038a3568711cd9877commit-bot@chromium.org SkScalar sx = rand.nextRangeF(-3000.f, 3000.f); 48708284e4d2421fb6c1978e68038a3568711cd9877commit-bot@chromium.org SkScalar sy = rand.nextRangeF(-3000.f, 3000.f); 4885b2e2640ed345c4670b99b349f62eb6f9446ec1ecommit-bot@chromium.org SkScalar rot1 = rand.nextRangeF(-180, 180); 48908284e4d2421fb6c1978e68038a3568711cd9877commit-bot@chromium.org mat.setRotate(rot0); 49008284e4d2421fb6c1978e68038a3568711cd9877commit-bot@chromium.org mat.postScale(sx, sy); 49108284e4d2421fb6c1978e68038a3568711cd9877commit-bot@chromium.org mat.postRotate(rot1); 49208284e4d2421fb6c1978e68038a3568711cd9877commit-bot@chromium.org 4935b2e2640ed345c4670b99b349f62eb6f9446ec1ecommit-bot@chromium.org if (SkDecomposeUpper2x2(mat, &rotation1, &scale, &rotation2)) { 4945b2e2640ed345c4670b99b349f62eb6f9446ec1ecommit-bot@chromium.org REPORTER_ASSERT(reporter, check_matrix_recomposition(mat, rotation1, scale, rotation2)); 49508284e4d2421fb6c1978e68038a3568711cd9877commit-bot@chromium.org } else { 49608284e4d2421fb6c1978e68038a3568711cd9877commit-bot@chromium.org // if the matrix is degenerate, the basis vectors should be near-parallel or near-zero 49708284e4d2421fb6c1978e68038a3568711cd9877commit-bot@chromium.org SkScalar perpdot = mat[SkMatrix::kMScaleX]*mat[SkMatrix::kMScaleY] - 49808284e4d2421fb6c1978e68038a3568711cd9877commit-bot@chromium.org mat[SkMatrix::kMSkewX]*mat[SkMatrix::kMSkewY]; 49908284e4d2421fb6c1978e68038a3568711cd9877commit-bot@chromium.org REPORTER_ASSERT(reporter, SkScalarNearlyZero(perpdot)); 50008284e4d2421fb6c1978e68038a3568711cd9877commit-bot@chromium.org } 50108284e4d2421fb6c1978e68038a3568711cd9877commit-bot@chromium.org } 50208284e4d2421fb6c1978e68038a3568711cd9877commit-bot@chromium.org 50308284e4d2421fb6c1978e68038a3568711cd9877commit-bot@chromium.org // translation shouldn't affect this 50408284e4d2421fb6c1978e68038a3568711cd9877commit-bot@chromium.org mat.postTranslate(-1000.f, 1000.f); 5055b2e2640ed345c4670b99b349f62eb6f9446ec1ecommit-bot@chromium.org REPORTER_ASSERT(reporter, SkDecomposeUpper2x2(mat, &rotation1, &scale, &rotation2)); 5065b2e2640ed345c4670b99b349f62eb6f9446ec1ecommit-bot@chromium.org REPORTER_ASSERT(reporter, check_matrix_recomposition(mat, rotation1, scale, rotation2)); 50708284e4d2421fb6c1978e68038a3568711cd9877commit-bot@chromium.org 50808284e4d2421fb6c1978e68038a3568711cd9877commit-bot@chromium.org // perspective shouldn't affect this 509588f3d3896ce84a00ba0b229a4fe8fff2bf67516jvanverth@google.com mat[SkMatrix::kMPersp0] = 12.f; 510588f3d3896ce84a00ba0b229a4fe8fff2bf67516jvanverth@google.com mat[SkMatrix::kMPersp1] = 4.f; 511588f3d3896ce84a00ba0b229a4fe8fff2bf67516jvanverth@google.com mat[SkMatrix::kMPersp2] = 1872.f; 5125b2e2640ed345c4670b99b349f62eb6f9446ec1ecommit-bot@chromium.org REPORTER_ASSERT(reporter, SkDecomposeUpper2x2(mat, &rotation1, &scale, &rotation2)); 5135b2e2640ed345c4670b99b349f62eb6f9446ec1ecommit-bot@chromium.org REPORTER_ASSERT(reporter, check_matrix_recomposition(mat, rotation1, scale, rotation2)); 51408284e4d2421fb6c1978e68038a3568711cd9877commit-bot@chromium.org 51508284e4d2421fb6c1978e68038a3568711cd9877commit-bot@chromium.org // degenerate matrices 51608284e4d2421fb6c1978e68038a3568711cd9877commit-bot@chromium.org // mostly zero entries 51708284e4d2421fb6c1978e68038a3568711cd9877commit-bot@chromium.org mat.reset(); 51808284e4d2421fb6c1978e68038a3568711cd9877commit-bot@chromium.org mat[SkMatrix::kMScaleX] = 0.f; 5195b2e2640ed345c4670b99b349f62eb6f9446ec1ecommit-bot@chromium.org REPORTER_ASSERT(reporter, !SkDecomposeUpper2x2(mat, &rotation1, &scale, &rotation2)); 52008284e4d2421fb6c1978e68038a3568711cd9877commit-bot@chromium.org mat.reset(); 52108284e4d2421fb6c1978e68038a3568711cd9877commit-bot@chromium.org mat[SkMatrix::kMScaleY] = 0.f; 5225b2e2640ed345c4670b99b349f62eb6f9446ec1ecommit-bot@chromium.org REPORTER_ASSERT(reporter, !SkDecomposeUpper2x2(mat, &rotation1, &scale, &rotation2)); 52308284e4d2421fb6c1978e68038a3568711cd9877commit-bot@chromium.org mat.reset(); 52408284e4d2421fb6c1978e68038a3568711cd9877commit-bot@chromium.org // linearly dependent entries 52508284e4d2421fb6c1978e68038a3568711cd9877commit-bot@chromium.org mat[SkMatrix::kMScaleX] = 1.f; 52608284e4d2421fb6c1978e68038a3568711cd9877commit-bot@chromium.org mat[SkMatrix::kMSkewX] = 2.f; 52708284e4d2421fb6c1978e68038a3568711cd9877commit-bot@chromium.org mat[SkMatrix::kMSkewY] = 4.f; 52808284e4d2421fb6c1978e68038a3568711cd9877commit-bot@chromium.org mat[SkMatrix::kMScaleY] = 8.f; 5295b2e2640ed345c4670b99b349f62eb6f9446ec1ecommit-bot@chromium.org REPORTER_ASSERT(reporter, !SkDecomposeUpper2x2(mat, &rotation1, &scale, &rotation2)); 53008284e4d2421fb6c1978e68038a3568711cd9877commit-bot@chromium.org} 53108284e4d2421fb6c1978e68038a3568711cd9877commit-bot@chromium.org 532259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com// For test_matrix_homogeneous, below. 533259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.comstatic bool scalar_array_nearly_equal_relative(const SkScalar a[], const SkScalar b[], int count) { 534259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com for (int i = 0; i < count; ++i) { 535259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com if (!scalar_nearly_equal_relative(a[i], b[i])) { 536259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com return false; 537259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com } 538259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com } 539259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com return true; 540259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com} 541259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com 542259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com// For test_matrix_homogeneous, below. 543259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com// Maps a single triple in src using m and compares results to those in dst 544259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.comstatic bool naive_homogeneous_mapping(const SkMatrix& m, const SkScalar src[3], 545259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com const SkScalar dst[3]) { 546259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com SkScalar res[3]; 547259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com SkScalar ms[9] = {m[0], m[1], m[2], 548259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com m[3], m[4], m[5], 549259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com m[6], m[7], m[8]}; 550259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com res[0] = src[0] * ms[0] + src[1] * ms[1] + src[2] * ms[2]; 551259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com res[1] = src[0] * ms[3] + src[1] * ms[4] + src[2] * ms[5]; 552259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com res[2] = src[0] * ms[6] + src[1] * ms[7] + src[2] * ms[8]; 553259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com return scalar_array_nearly_equal_relative(res, dst, 3); 554259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com} 555259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com 556259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.comstatic void test_matrix_homogeneous(skiatest::Reporter* reporter) { 557259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com SkMatrix mat; 558259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com 559259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com const float kRotation0 = 15.5f; 560259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com const float kRotation1 = -50.f; 561259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com const float kScale0 = 5000.f; 562259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com 563259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com const int kTripleCount = 1000; 564259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com const int kMatrixCount = 1000; 565e0e7cfe44bb9d66d76120a79e5275c294bacaa22commit-bot@chromium.org SkRandom rand; 566259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com 567259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com SkScalar randTriples[3*kTripleCount]; 568259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com for (int i = 0; i < 3*kTripleCount; ++i) { 569259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com randTriples[i] = rand.nextRangeF(-3000.f, 3000.f); 570259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com } 571259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com 572259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com SkMatrix mats[kMatrixCount]; 573259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com for (int i = 0; i < kMatrixCount; ++i) { 574259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com for (int j = 0; j < 9; ++j) { 575259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com mats[i].set(j, rand.nextRangeF(-3000.f, 3000.f)); 576259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com } 577259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com } 578259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com 579259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com // identity 580259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com { 581259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com mat.reset(); 582259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com SkScalar dst[3*kTripleCount]; 583259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com mat.mapHomogeneousPoints(dst, randTriples, kTripleCount); 584259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com REPORTER_ASSERT(reporter, scalar_array_nearly_equal_relative(randTriples, dst, kTripleCount*3)); 585259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com } 586259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com 587259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com // zero matrix 588259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com { 589259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com mat.setAll(0.f, 0.f, 0.f, 0.f, 0.f, 0.f, 0.f, 0.f, 0.f); 590259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com SkScalar dst[3*kTripleCount]; 591259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com mat.mapHomogeneousPoints(dst, randTriples, kTripleCount); 592259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com SkScalar zeros[3] = {0.f, 0.f, 0.f}; 593259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com for (int i = 0; i < kTripleCount; ++i) { 594259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com REPORTER_ASSERT(reporter, scalar_array_nearly_equal_relative(&dst[i*3], zeros, 3)); 595259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com } 596259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com } 597259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com 598259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com // zero point 599259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com { 600259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com SkScalar zeros[3] = {0.f, 0.f, 0.f}; 601259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com for (int i = 0; i < kMatrixCount; ++i) { 602259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com SkScalar dst[3]; 603259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com mats[i].mapHomogeneousPoints(dst, zeros, 1); 604259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com REPORTER_ASSERT(reporter, scalar_array_nearly_equal_relative(dst, zeros, 3)); 605259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com } 606259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com } 607259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com 608259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com // doesn't crash with null dst, src, count == 0 609259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com { 610259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com mats[0].mapHomogeneousPoints(NULL, NULL, 0); 611259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com } 612259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com 613259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com // uniform scale of point 614259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com { 615259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com mat.setScale(kScale0, kScale0); 616259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com SkScalar dst[3]; 617259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com SkScalar src[3] = {randTriples[0], randTriples[1], 1.f}; 618259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com SkPoint pnt; 619259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com pnt.set(src[0], src[1]); 620259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com mat.mapHomogeneousPoints(dst, src, 1); 621259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com mat.mapPoints(&pnt, &pnt, 1); 622259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com REPORTER_ASSERT(reporter, SkScalarNearlyEqual(dst[0], pnt.fX)); 623259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com REPORTER_ASSERT(reporter, SkScalarNearlyEqual(dst[1], pnt.fY)); 624259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com REPORTER_ASSERT(reporter, SkScalarNearlyEqual(dst[2], SK_Scalar1)); 625259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com } 626259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com 627259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com // rotation of point 628259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com { 629259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com mat.setRotate(kRotation0); 630259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com SkScalar dst[3]; 631259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com SkScalar src[3] = {randTriples[0], randTriples[1], 1.f}; 632259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com SkPoint pnt; 633259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com pnt.set(src[0], src[1]); 634259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com mat.mapHomogeneousPoints(dst, src, 1); 635259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com mat.mapPoints(&pnt, &pnt, 1); 636259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com REPORTER_ASSERT(reporter, SkScalarNearlyEqual(dst[0], pnt.fX)); 637259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com REPORTER_ASSERT(reporter, SkScalarNearlyEqual(dst[1], pnt.fY)); 638259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com REPORTER_ASSERT(reporter, SkScalarNearlyEqual(dst[2], SK_Scalar1)); 639259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com } 640259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com 641259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com // rotation, scale, rotation of point 642259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com { 643259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com mat.setRotate(kRotation1); 644259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com mat.postScale(kScale0, kScale0); 645259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com mat.postRotate(kRotation0); 646259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com SkScalar dst[3]; 647259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com SkScalar src[3] = {randTriples[0], randTriples[1], 1.f}; 648259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com SkPoint pnt; 649259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com pnt.set(src[0], src[1]); 650259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com mat.mapHomogeneousPoints(dst, src, 1); 651259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com mat.mapPoints(&pnt, &pnt, 1); 652259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com REPORTER_ASSERT(reporter, SkScalarNearlyEqual(dst[0], pnt.fX)); 653259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com REPORTER_ASSERT(reporter, SkScalarNearlyEqual(dst[1], pnt.fY)); 654259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com REPORTER_ASSERT(reporter, SkScalarNearlyEqual(dst[2], SK_Scalar1)); 655259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com } 656259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com 657259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com // compare with naive approach 658259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com { 659259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com for (int i = 0; i < kMatrixCount; ++i) { 660259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com for (int j = 0; j < kTripleCount; ++j) { 661259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com SkScalar dst[3]; 662259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com mats[i].mapHomogeneousPoints(dst, &randTriples[j*3], 1); 663259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com REPORTER_ASSERT(reporter, naive_homogeneous_mapping(mats[i], &randTriples[j*3], dst)); 664259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com } 665259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com } 666259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com } 667259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com 668259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com} 669259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com 670e4fafb146e85cdfcf9d5418597b6818aa0754adatfarina@chromium.orgDEF_TEST(Matrix, reporter) { 671ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com SkMatrix mat, inverse, iden1, iden2; 672ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com 673ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com mat.reset(); 674ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com mat.setTranslate(SK_Scalar1, SK_Scalar1); 6755bfa55b1cd067fa2fe1cbe409573aeaabd98d23creed@google.com REPORTER_ASSERT(reporter, mat.invert(&inverse)); 676ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com iden1.setConcat(mat, inverse); 677ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com REPORTER_ASSERT(reporter, is_identity(iden1)); 678ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com 6792fb96cc5d713451216bd63d5dc8d19abc8550730reed@google.com mat.setScale(SkIntToScalar(2), SkIntToScalar(4)); 6805bfa55b1cd067fa2fe1cbe409573aeaabd98d23creed@google.com REPORTER_ASSERT(reporter, mat.invert(&inverse)); 681ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com iden1.setConcat(mat, inverse); 682ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com REPORTER_ASSERT(reporter, is_identity(iden1)); 6834b7577b042966657c776fd95c67f9363af57945freed@android.com test_flatten(reporter, mat); 684ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com 6852fb96cc5d713451216bd63d5dc8d19abc8550730reed@google.com mat.setScale(SK_Scalar1/2, SkIntToScalar(2)); 6865bfa55b1cd067fa2fe1cbe409573aeaabd98d23creed@google.com REPORTER_ASSERT(reporter, mat.invert(&inverse)); 687ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com iden1.setConcat(mat, inverse); 688ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com REPORTER_ASSERT(reporter, is_identity(iden1)); 6894b7577b042966657c776fd95c67f9363af57945freed@android.com test_flatten(reporter, mat); 690ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com 691ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com mat.setScale(SkIntToScalar(3), SkIntToScalar(5), SkIntToScalar(20), 0); 692ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com mat.postRotate(SkIntToScalar(25)); 693ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com REPORTER_ASSERT(reporter, mat.invert(NULL)); 6945bfa55b1cd067fa2fe1cbe409573aeaabd98d23creed@google.com REPORTER_ASSERT(reporter, mat.invert(&inverse)); 695ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com iden1.setConcat(mat, inverse); 696ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com REPORTER_ASSERT(reporter, is_identity(iden1)); 697ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com iden2.setConcat(inverse, mat); 698ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com REPORTER_ASSERT(reporter, is_identity(iden2)); 6994b7577b042966657c776fd95c67f9363af57945freed@android.com test_flatten(reporter, mat); 7004b7577b042966657c776fd95c67f9363af57945freed@android.com test_flatten(reporter, iden2); 70180e39a77b16f4396eed230efea1d0b2fc8cbfb00reed@android.com 7022fb96cc5d713451216bd63d5dc8d19abc8550730reed@google.com mat.setScale(0, SK_Scalar1); 703e40591d5484762067f976d979c506f126c7779e1reed@google.com REPORTER_ASSERT(reporter, !mat.invert(NULL)); 7042fb96cc5d713451216bd63d5dc8d19abc8550730reed@google.com REPORTER_ASSERT(reporter, !mat.invert(&inverse)); 7052fb96cc5d713451216bd63d5dc8d19abc8550730reed@google.com mat.setScale(SK_Scalar1, 0); 706e40591d5484762067f976d979c506f126c7779e1reed@google.com REPORTER_ASSERT(reporter, !mat.invert(NULL)); 7072fb96cc5d713451216bd63d5dc8d19abc8550730reed@google.com REPORTER_ASSERT(reporter, !mat.invert(&inverse)); 7082fb96cc5d713451216bd63d5dc8d19abc8550730reed@google.com 709ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com // rectStaysRect test 710ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com { 711ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com static const struct { 712ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com SkScalar m00, m01, m10, m11; 713ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com bool mStaysRect; 714ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com } 715ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com gRectStaysRectSamples[] = { 716ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com { 0, 0, 0, 0, false }, 717ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com { 0, 0, 0, SK_Scalar1, false }, 718ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com { 0, 0, SK_Scalar1, 0, false }, 719ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com { 0, 0, SK_Scalar1, SK_Scalar1, false }, 720ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com { 0, SK_Scalar1, 0, 0, false }, 721ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com { 0, SK_Scalar1, 0, SK_Scalar1, false }, 722ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com { 0, SK_Scalar1, SK_Scalar1, 0, true }, 723ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com { 0, SK_Scalar1, SK_Scalar1, SK_Scalar1, false }, 724ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com { SK_Scalar1, 0, 0, 0, false }, 725ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com { SK_Scalar1, 0, 0, SK_Scalar1, true }, 726ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com { SK_Scalar1, 0, SK_Scalar1, 0, false }, 727ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com { SK_Scalar1, 0, SK_Scalar1, SK_Scalar1, false }, 728ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com { SK_Scalar1, SK_Scalar1, 0, 0, false }, 729ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com { SK_Scalar1, SK_Scalar1, 0, SK_Scalar1, false }, 730ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com { SK_Scalar1, SK_Scalar1, SK_Scalar1, 0, false }, 731ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com { SK_Scalar1, SK_Scalar1, SK_Scalar1, SK_Scalar1, false } 732ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com }; 73380e39a77b16f4396eed230efea1d0b2fc8cbfb00reed@android.com 734ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com for (size_t i = 0; i < SK_ARRAY_COUNT(gRectStaysRectSamples); i++) { 735ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com SkMatrix m; 73680e39a77b16f4396eed230efea1d0b2fc8cbfb00reed@android.com 737ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com m.reset(); 738ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com m.set(SkMatrix::kMScaleX, gRectStaysRectSamples[i].m00); 739ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com m.set(SkMatrix::kMSkewX, gRectStaysRectSamples[i].m01); 740ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com m.set(SkMatrix::kMSkewY, gRectStaysRectSamples[i].m10); 741ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com m.set(SkMatrix::kMScaleY, gRectStaysRectSamples[i].m11); 742ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com REPORTER_ASSERT(reporter, 743ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com m.rectStaysRect() == gRectStaysRectSamples[i].mStaysRect); 744ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com } 745ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com } 7461ddd7c39289b7dd18537fdac4b630e378cd78842bungeman@google.com 747ba7983e55ce15ddcd5534011935178760164fb9dbungeman@google.com mat.reset(); 7481ddd7c39289b7dd18537fdac4b630e378cd78842bungeman@google.com mat.set(SkMatrix::kMScaleX, SkIntToScalar(1)); 7491ddd7c39289b7dd18537fdac4b630e378cd78842bungeman@google.com mat.set(SkMatrix::kMSkewX, SkIntToScalar(2)); 7501ddd7c39289b7dd18537fdac4b630e378cd78842bungeman@google.com mat.set(SkMatrix::kMTransX, SkIntToScalar(3)); 7511ddd7c39289b7dd18537fdac4b630e378cd78842bungeman@google.com mat.set(SkMatrix::kMSkewY, SkIntToScalar(4)); 7521ddd7c39289b7dd18537fdac4b630e378cd78842bungeman@google.com mat.set(SkMatrix::kMScaleY, SkIntToScalar(5)); 7531ddd7c39289b7dd18537fdac4b630e378cd78842bungeman@google.com mat.set(SkMatrix::kMTransY, SkIntToScalar(6)); 7541ddd7c39289b7dd18537fdac4b630e378cd78842bungeman@google.com SkScalar affine[6]; 7551ddd7c39289b7dd18537fdac4b630e378cd78842bungeman@google.com REPORTER_ASSERT(reporter, mat.asAffine(affine)); 7561ddd7c39289b7dd18537fdac4b630e378cd78842bungeman@google.com 7571ddd7c39289b7dd18537fdac4b630e378cd78842bungeman@google.com #define affineEqual(e) affine[SkMatrix::kA##e] == mat.get(SkMatrix::kM##e) 7581ddd7c39289b7dd18537fdac4b630e378cd78842bungeman@google.com REPORTER_ASSERT(reporter, affineEqual(ScaleX)); 7591ddd7c39289b7dd18537fdac4b630e378cd78842bungeman@google.com REPORTER_ASSERT(reporter, affineEqual(SkewY)); 7601ddd7c39289b7dd18537fdac4b630e378cd78842bungeman@google.com REPORTER_ASSERT(reporter, affineEqual(SkewX)); 7611ddd7c39289b7dd18537fdac4b630e378cd78842bungeman@google.com REPORTER_ASSERT(reporter, affineEqual(ScaleY)); 7621ddd7c39289b7dd18537fdac4b630e378cd78842bungeman@google.com REPORTER_ASSERT(reporter, affineEqual(TransX)); 7631ddd7c39289b7dd18537fdac4b630e378cd78842bungeman@google.com REPORTER_ASSERT(reporter, affineEqual(TransY)); 7641ddd7c39289b7dd18537fdac4b630e378cd78842bungeman@google.com #undef affineEqual 7651ddd7c39289b7dd18537fdac4b630e378cd78842bungeman@google.com 76607faed110275048c83a55ae39042da2c9d916108bungeman@google.com mat.set(SkMatrix::kMPersp1, SkScalarToPersp(SK_Scalar1 / 2)); 7671ddd7c39289b7dd18537fdac4b630e378cd78842bungeman@google.com REPORTER_ASSERT(reporter, !mat.asAffine(affine)); 768383963280ddd13030331765fe88d2aefa3e32130bsalomon@google.com 7698fe84b53a64b5d92f3aabdd8e7fc7b2ee15c0a75bsalomon@google.com SkMatrix mat2; 7708fe84b53a64b5d92f3aabdd8e7fc7b2ee15c0a75bsalomon@google.com mat2.reset(); 7718fe84b53a64b5d92f3aabdd8e7fc7b2ee15c0a75bsalomon@google.com mat.reset(); 7728fe84b53a64b5d92f3aabdd8e7fc7b2ee15c0a75bsalomon@google.com SkScalar zero = 0; 7738fe84b53a64b5d92f3aabdd8e7fc7b2ee15c0a75bsalomon@google.com mat.set(SkMatrix::kMSkewX, -zero); 7748fe84b53a64b5d92f3aabdd8e7fc7b2ee15c0a75bsalomon@google.com REPORTER_ASSERT(reporter, are_equal(reporter, mat, mat2)); 7758fe84b53a64b5d92f3aabdd8e7fc7b2ee15c0a75bsalomon@google.com 7768fe84b53a64b5d92f3aabdd8e7fc7b2ee15c0a75bsalomon@google.com mat2.reset(); 7778fe84b53a64b5d92f3aabdd8e7fc7b2ee15c0a75bsalomon@google.com mat.reset(); 7788fe84b53a64b5d92f3aabdd8e7fc7b2ee15c0a75bsalomon@google.com mat.set(SkMatrix::kMSkewX, SK_ScalarNaN); 7798fe84b53a64b5d92f3aabdd8e7fc7b2ee15c0a75bsalomon@google.com mat2.set(SkMatrix::kMSkewX, SK_ScalarNaN); 7808fe84b53a64b5d92f3aabdd8e7fc7b2ee15c0a75bsalomon@google.com REPORTER_ASSERT(reporter, !are_equal(reporter, mat, mat2)); 7818fe84b53a64b5d92f3aabdd8e7fc7b2ee15c0a75bsalomon@google.com 7821878651990d7c9da72cf43481432232bbef3550dcommit-bot@chromium.org test_matrix_min_max_scale(reporter); 78346d3d39e65e0b3ea2ad7c91c176ccafb4df0fa24jvanverth@google.com test_matrix_is_similarity(reporter); 78497cd69ca23b27d88e08727366c29c1147eb564dereed@google.com test_matrix_recttorect(reporter); 78508284e4d2421fb6c1978e68038a3568711cd9877commit-bot@chromium.org test_matrix_decomposition(reporter); 786259fbaf7a464827bc560517988daeb5836e11e98egdaniel@google.com test_matrix_homogeneous(reporter); 787ed673310e2551e64d8196f7776d7d4c92085f8c2reed@android.com} 78899bd7d817471ec903a7fe364b4e1d4477b1372b5commit-bot@chromium.org 78999bd7d817471ec903a7fe364b4e1d4477b1372b5commit-bot@chromium.orgDEF_TEST(Matrix_Concat, r) { 79099bd7d817471ec903a7fe364b4e1d4477b1372b5commit-bot@chromium.org SkMatrix a; 79199bd7d817471ec903a7fe364b4e1d4477b1372b5commit-bot@chromium.org a.setTranslate(10, 20); 79299bd7d817471ec903a7fe364b4e1d4477b1372b5commit-bot@chromium.org 79399bd7d817471ec903a7fe364b4e1d4477b1372b5commit-bot@chromium.org SkMatrix b; 79499bd7d817471ec903a7fe364b4e1d4477b1372b5commit-bot@chromium.org b.setScale(3, 5); 79599bd7d817471ec903a7fe364b4e1d4477b1372b5commit-bot@chromium.org 79699bd7d817471ec903a7fe364b4e1d4477b1372b5commit-bot@chromium.org SkMatrix expected; 79799bd7d817471ec903a7fe364b4e1d4477b1372b5commit-bot@chromium.org expected.setConcat(a,b); 79899bd7d817471ec903a7fe364b4e1d4477b1372b5commit-bot@chromium.org 79999bd7d817471ec903a7fe364b4e1d4477b1372b5commit-bot@chromium.org REPORTER_ASSERT(r, expected == SkMatrix::Concat(a, b)); 80099bd7d817471ec903a7fe364b4e1d4477b1372b5commit-bot@chromium.org} 801