diff --git a/include/assimp/MathFunctions.h b/include/assimp/MathFunctions.h index 1880ce0a9..d4bc54451 100644 --- a/include/assimp/MathFunctions.h +++ b/include/assimp/MathFunctions.h @@ -55,36 +55,51 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. namespace Assimp { namespace Math { -// TODO: use binary GCD for unsigned integers .... -template < typename IntegerType > -inline -IntegerType gcd( IntegerType a, IntegerType b ) { +/// @brief Will return the greatest common divisor. +/// @param a [in] Value a. +/// @param b [in] Value b. +/// @return The greatest common divisor. +template +inline IntegerType gcd( IntegerType a, IntegerType b ) { const IntegerType zero = (IntegerType)0; while ( true ) { - if ( a == zero ) + if ( a == zero ) { return b; + } b %= a; - if ( b == zero ) + if ( b == zero ) { return a; + } a %= b; } } +/// @brief Will return the greatest common divisor. +/// @param a [in] Value a. +/// @param b [in] Value b. +/// @return The greatest common divisor. template < typename IntegerType > -inline -IntegerType lcm( IntegerType a, IntegerType b ) { +inline IntegerType lcm( IntegerType a, IntegerType b ) { const IntegerType t = gcd (a,b); - if (!t) + if (!t) { return t; + } return a / t * b; } - +/// @brief Will return the smallest epsilon-value for the requested type. +/// @return The numercical limit epsilon depending on its type. template -inline -T getEpsilon() { +inline T getEpsilon() { return std::numeric_limits::epsilon(); } +/// @brief Will return the constant PI for the requested type. +/// @return Pi +template +inline T PI() { + return static_cast(3.14159265358979323846); } -} + +} // namespace Math +} // namespace Assimp diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt index 71316c09b..fac246d68 100644 --- a/test/CMakeLists.txt +++ b/test/CMakeLists.txt @@ -61,6 +61,14 @@ SET( COMMON unit/utIssues.cpp unit/utAnim.cpp unit/AssimpAPITest.cpp + unit/AssimpAPITest_aiMatrix3x3.cpp + unit/AssimpAPITest_aiMatrix4x4.cpp + unit/AssimpAPITest_aiQuaternion.cpp + unit/AssimpAPITest_aiVector2D.cpp + unit/AssimpAPITest_aiVector3D.cpp + unit/MathTest.cpp + unit/MathTest.h + unit/RandomNumberGeneration.h unit/utBatchLoader.cpp unit/utDefaultIOStream.cpp unit/utFastAtof.cpp diff --git a/test/unit/AssimpAPITest_aiMatrix3x3.cpp b/test/unit/AssimpAPITest_aiMatrix3x3.cpp new file mode 100644 index 000000000..5c0282a63 --- /dev/null +++ b/test/unit/AssimpAPITest_aiMatrix3x3.cpp @@ -0,0 +1,151 @@ +/* +--------------------------------------------------------------------------- +Open Asset Import Library (assimp) +--------------------------------------------------------------------------- + +Copyright (c) 2006-2020, assimp team + + + +All rights reserved. + +Redistribution and use of this software in source and binary forms, +with or without modification, are permitted provided that the following +conditions are met: + +* Redistributions of source code must retain the above +copyright notice, this list of conditions and the +following disclaimer. + +* Redistributions in binary form must reproduce the above +copyright notice, this list of conditions and the +following disclaimer in the documentation and/or other +materials provided with the distribution. + +* Neither the name of the assimp team, nor the names of its +contributors may be used to endorse or promote products +derived from this software without specific prior +written permission of the assimp team. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +--------------------------------------------------------------------------- +*/ +#include "UnitTestPCH.h" +#include "MathTest.h" + +using namespace Assimp; + +class AssimpAPITest_aiMatrix3x3 : public AssimpMathTest { +protected: + virtual void SetUp() { + result_c = result_cpp = aiMatrix3x3(); + } + + aiMatrix3x3 result_c, result_cpp; +}; + +TEST_F(AssimpAPITest_aiMatrix3x3, aiIdentityMatrix3Test) { + // Force a non-identity matrix. + result_c = aiMatrix3x3(0,0,0,0,0,0,0,0,0); + aiIdentityMatrix3(&result_c); + EXPECT_EQ(result_cpp, result_c); +} + +TEST_F(AssimpAPITest_aiMatrix3x3, aiMatrix3FromMatrix4Test) { + const auto m = random_mat4(); + result_cpp = aiMatrix3x3(m); + aiMatrix3FromMatrix4(&result_c, &m); + EXPECT_EQ(result_cpp, result_c); +} + +TEST_F(AssimpAPITest_aiMatrix3x3, aiMatrix3FromQuaternionTest) { + const auto q = random_quat(); + result_cpp = q.GetMatrix(); + aiMatrix3FromQuaternion(&result_c, &q); + EXPECT_EQ(result_cpp, result_c); +} + +TEST_F(AssimpAPITest_aiMatrix3x3, aiMatrix3AreEqualTest) { + result_c = result_cpp = random_mat3(); + EXPECT_EQ(result_cpp == result_c, + (bool)aiMatrix3AreEqual(&result_cpp, &result_c)); +} + +TEST_F(AssimpAPITest_aiMatrix3x3, aiMatrix3AreEqualEpsilonTest) { + result_c = result_cpp = random_mat3(); + EXPECT_EQ(result_cpp.Equal(result_c, Epsilon), + (bool)aiMatrix3AreEqualEpsilon(&result_cpp, &result_c, Epsilon)); +} + +TEST_F(AssimpAPITest_aiMatrix3x3, aiMultiplyMatrix3Test) { + const auto m = random_mat3(); + result_c = result_cpp = random_mat3(); + result_cpp *= m; + aiMultiplyMatrix3(&result_c, &m); + EXPECT_EQ(result_cpp, result_c); +} + +TEST_F(AssimpAPITest_aiMatrix3x3, aiTransposeMatrix3Test) { + result_c = result_cpp = random_mat3(); + result_cpp.Transpose(); + aiTransposeMatrix3(&result_c); + EXPECT_EQ(result_cpp, result_c); +} + +TEST_F(AssimpAPITest_aiMatrix3x3, aiMatrix3InverseTest) { + // Use a predetermined matrix to prevent arbitrary + // cases where it could have a null determinant. + result_c = result_cpp = aiMatrix3x3( + 5, 2, 7, + 4, 6, 9, + 1, 8, 3); + result_cpp.Inverse(); + aiMatrix3Inverse(&result_c); + EXPECT_EQ(result_cpp, result_c); +} + +TEST_F(AssimpAPITest_aiMatrix3x3, aiMatrix3DeterminantTest) { + result_c = result_cpp = random_mat3(); + EXPECT_EQ(result_cpp.Determinant(), + aiMatrix3Determinant(&result_c)); +} + +TEST_F(AssimpAPITest_aiMatrix3x3, aiMatrix3RotationZTest) { + const float angle(RandPI.next()); + aiMatrix3x3::RotationZ(angle, result_cpp); + aiMatrix3RotationZ(&result_c, angle); + EXPECT_EQ(result_cpp, result_c); +} + +TEST_F(AssimpAPITest_aiMatrix3x3, aiMatrix3FromRotationAroundAxisTest) { + const float angle(RandPI.next()); + const auto axis = random_unit_vec3(); + aiMatrix3x3::Rotation(angle, axis, result_cpp); + aiMatrix3FromRotationAroundAxis(&result_c, &axis, angle); + EXPECT_EQ(result_cpp, result_c); +} + +TEST_F(AssimpAPITest_aiMatrix3x3, aiMatrix3TranslationTest) { + const auto axis = random_vec2(); + aiMatrix3x3::Translation(axis, result_cpp); + aiMatrix3Translation(&result_c, &axis); + EXPECT_EQ(result_cpp, result_c); +} + +TEST_F(AssimpAPITest_aiMatrix3x3, aiMatrix3FromToTest) { + // Use predetermined vectors to prevent running into division by zero. + const auto from = aiVector3D(1,2,1).Normalize(), to = aiVector3D(-1,1,1).Normalize(); + aiMatrix3x3::FromToMatrix(from, to, result_cpp); + aiMatrix3FromTo(&result_c, &from, &to); + EXPECT_EQ(result_cpp, result_c); +} diff --git a/test/unit/AssimpAPITest_aiMatrix4x4.cpp b/test/unit/AssimpAPITest_aiMatrix4x4.cpp new file mode 100644 index 000000000..2c89726e0 --- /dev/null +++ b/test/unit/AssimpAPITest_aiMatrix4x4.cpp @@ -0,0 +1,259 @@ +/* +--------------------------------------------------------------------------- +Open Asset Import Library (assimp) +--------------------------------------------------------------------------- + +Copyright (c) 2006-2020, assimp team + + + +All rights reserved. + +Redistribution and use of this software in source and binary forms, +with or without modification, are permitted provided that the following +conditions are met: + +* Redistributions of source code must retain the above +copyright notice, this list of conditions and the +following disclaimer. + +* Redistributions in binary form must reproduce the above +copyright notice, this list of conditions and the +following disclaimer in the documentation and/or other +materials provided with the distribution. + +* Neither the name of the assimp team, nor the names of its +contributors may be used to endorse or promote products +derived from this software without specific prior +written permission of the assimp team. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +--------------------------------------------------------------------------- +*/ +#include "UnitTestPCH.h" +#include "MathTest.h" + +using namespace Assimp; + +class AssimpAPITest_aiMatrix4x4 : public AssimpMathTest { +protected: + virtual void SetUp() { + result_c = result_cpp = aiMatrix4x4(); + } + + /* Generates a predetermined transformation matrix to use + for the aiDecompose functions to prevent running into + division by zero. */ + aiMatrix4x4 get_predetermined_transformation_matrix_for_decomposition() const { + aiMatrix4x4 t, r; + aiMatrix4x4::Translation(aiVector3D(14,-25,-8), t); + aiMatrix4x4::Rotation(Math::PI() / 4.0f, aiVector3D(1).Normalize(), r); + return t * r; + } + + aiMatrix4x4 result_c, result_cpp; +}; + +TEST_F(AssimpAPITest_aiMatrix4x4, aiIdentityMatrix4Test) { + // Force a non-identity matrix. + result_c = aiMatrix4x4(0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0); + aiIdentityMatrix4(&result_c); + EXPECT_EQ(result_cpp, result_c); +} + +TEST_F(AssimpAPITest_aiMatrix4x4, aiMatrix4FromMatrix3Test) { + aiMatrix3x3 m = random_mat3(); + result_cpp = aiMatrix4x4(m); + aiMatrix4FromMatrix3(&result_c, &m); + EXPECT_EQ(result_cpp, result_c); +} + +TEST_F(AssimpAPITest_aiMatrix4x4, aiMatrix4FromScalingQuaternionPositionTest) { + const aiVector3D s = random_vec3(); + const aiQuaternion q = random_quat(); + const aiVector3D t = random_vec3(); + result_cpp = aiMatrix4x4(s, q, t); + aiMatrix4FromScalingQuaternionPosition(&result_c, &s, &q, &t); + EXPECT_EQ(result_cpp, result_c); +} + +TEST_F(AssimpAPITest_aiMatrix4x4, aiMatrix4AddTest) { + const aiMatrix4x4 temp = random_mat4(); + result_c = result_cpp = random_mat4(); + result_cpp = result_cpp + temp; + aiMatrix4Add(&result_c, &temp); + EXPECT_EQ(result_cpp, result_c); +} + +TEST_F(AssimpAPITest_aiMatrix4x4, aiMatrix4AreEqualTest) { + result_c = result_cpp = random_mat4(); + EXPECT_EQ(result_cpp == result_c, + (bool)aiMatrix4AreEqual(&result_cpp, &result_c)); +} + +TEST_F(AssimpAPITest_aiMatrix4x4, aiMatrix4AreEqualEpsilonTest) { + result_c = result_cpp = random_mat4(); + EXPECT_EQ(result_cpp.Equal(result_c, Epsilon), + (bool)aiMatrix4AreEqualEpsilon(&result_cpp, &result_c, Epsilon)); +} + +TEST_F(AssimpAPITest_aiMatrix4x4, aiMultiplyMatrix4Test) { + const auto m = random_mat4(); + result_c = result_cpp = random_mat4(); + result_cpp *= m; + aiMultiplyMatrix4(&result_c, &m); + EXPECT_EQ(result_cpp, result_c); +} + +TEST_F(AssimpAPITest_aiMatrix4x4, aiTransposeMatrix4Test) { + result_c = result_cpp = random_mat4(); + result_cpp.Transpose(); + aiTransposeMatrix4(&result_c); + EXPECT_EQ(result_cpp, result_c); +} + +TEST_F(AssimpAPITest_aiMatrix4x4, aiMatrix4InverseTest) { + // Use a predetermined matrix to prevent arbitrary + // cases where it could have a null determinant. + result_c = result_cpp = aiMatrix4x4( + 6, 10, 15, 3, + 14, 2, 12, 8, + 9, 13, 5, 16, + 4, 7, 11, 1); + result_cpp.Inverse(); + aiMatrix4Inverse(&result_c); + EXPECT_EQ(result_cpp, result_c); +} + +TEST_F(AssimpAPITest_aiMatrix4x4, aiMatrix4DeterminantTest) { + result_c = result_cpp = random_mat4(); + EXPECT_EQ(result_cpp.Determinant(), + aiMatrix4Determinant(&result_c)); +} + +TEST_F(AssimpAPITest_aiMatrix4x4, aiMatrix4IsIdentityTest) { + EXPECT_EQ(result_cpp.IsIdentity(), + (bool)aiMatrix4IsIdentity(&result_c)); +} + +TEST_F(AssimpAPITest_aiMatrix4x4, aiDecomposeMatrixTest) { + aiVector3D scaling_c, scaling_cpp, + position_c, position_cpp; + aiQuaternion rotation_c, rotation_cpp; + + result_c = result_cpp = get_predetermined_transformation_matrix_for_decomposition(); + result_cpp.Decompose(scaling_cpp, rotation_cpp, position_cpp); + aiDecomposeMatrix(&result_c, &scaling_c, &rotation_c, &position_c); + EXPECT_EQ(scaling_cpp, scaling_c); + EXPECT_EQ(position_cpp, position_c); + EXPECT_EQ(rotation_cpp, rotation_c); +} + +TEST_F(AssimpAPITest_aiMatrix4x4, aiMatrix4DecomposeIntoScalingEulerAnglesPositionTest) { + aiVector3D scaling_c, scaling_cpp, + rotation_c, rotation_cpp, + position_c, position_cpp; + + result_c = result_cpp = get_predetermined_transformation_matrix_for_decomposition(); + result_cpp.Decompose(scaling_cpp, rotation_cpp, position_cpp); + aiMatrix4DecomposeIntoScalingEulerAnglesPosition(&result_c, &scaling_c, &rotation_c, &position_c); + EXPECT_EQ(scaling_cpp, scaling_c); + EXPECT_EQ(position_cpp, position_c); + EXPECT_EQ(rotation_cpp, rotation_c); +} + +TEST_F(AssimpAPITest_aiMatrix4x4, aiMatrix4DecomposeIntoScalingAxisAnglePositionTest) { + aiVector3D scaling_c, scaling_cpp, + axis_c, axis_cpp, + position_c, position_cpp; + float angle_c, angle_cpp; + + result_c = result_cpp = get_predetermined_transformation_matrix_for_decomposition(); + result_cpp.Decompose(scaling_cpp, axis_cpp, angle_cpp, position_cpp); + aiMatrix4DecomposeIntoScalingAxisAnglePosition(&result_c, &scaling_c, &axis_c, &angle_c, &position_c); + EXPECT_EQ(scaling_cpp, scaling_c); + EXPECT_EQ(axis_cpp, axis_c); + EXPECT_EQ(angle_cpp, angle_c); + EXPECT_EQ(position_cpp, position_c); +} + +TEST_F(AssimpAPITest_aiMatrix4x4, aiMatrix4DecomposeNoScalingTest) { + aiVector3D position_c, position_cpp; + aiQuaternion rotation_c, rotation_cpp; + + result_c = result_cpp = get_predetermined_transformation_matrix_for_decomposition(); + result_cpp.DecomposeNoScaling(rotation_cpp, position_cpp); + aiMatrix4DecomposeNoScaling(&result_c, &rotation_c, &position_c); + EXPECT_EQ(position_cpp, position_c); + EXPECT_EQ(rotation_cpp, rotation_c); +} + +TEST_F(AssimpAPITest_aiMatrix4x4, aiMatrix4FromEulerAnglesTest) { + const float x(RandPI.next()), + y(RandPI.next()), + z(RandPI.next()); + result_cpp.FromEulerAnglesXYZ(x, y, z); + aiMatrix4FromEulerAngles(&result_c, x, y, z); + EXPECT_EQ(result_cpp, result_c); +} + +TEST_F(AssimpAPITest_aiMatrix4x4, aiMatrix4RotationXTest) { + const float angle(RandPI.next()); + aiMatrix4x4::RotationX(angle, result_cpp); + aiMatrix4RotationX(&result_c, angle); + EXPECT_EQ(result_cpp, result_c); +} + +TEST_F(AssimpAPITest_aiMatrix4x4, aiMatrix4RotationYTest) { + const float angle(RandPI.next()); + aiMatrix4x4::RotationY(angle, result_cpp); + aiMatrix4RotationY(&result_c, angle); + EXPECT_EQ(result_cpp, result_c); +} + +TEST_F(AssimpAPITest_aiMatrix4x4, aiMatrix4RotationZTest) { + const float angle(RandPI.next()); + aiMatrix4x4::RotationZ(angle, result_cpp); + aiMatrix4RotationZ(&result_c, angle); + EXPECT_EQ(result_cpp, result_c); +} + +TEST_F(AssimpAPITest_aiMatrix4x4, aiMatrix4FromRotationAroundAxisTest) { + const float angle(RandPI.next()); + const auto axis = random_unit_vec3(); + aiMatrix4x4::Rotation(angle, axis, result_cpp); + aiMatrix4FromRotationAroundAxis(&result_c, &axis, angle); + EXPECT_EQ(result_cpp, result_c); +} + +TEST_F(AssimpAPITest_aiMatrix4x4, aiMatrix4TranslationTest) { + const auto axis = random_vec3(); + aiMatrix4x4::Translation(axis, result_cpp); + aiMatrix4Translation(&result_c, &axis); + EXPECT_EQ(result_cpp, result_c); +} + +TEST_F(AssimpAPITest_aiMatrix4x4, aiMatrix4ScalingTest) { + const auto scaling = random_vec3(); + aiMatrix4x4::Scaling(scaling, result_cpp); + aiMatrix4Scaling(&result_c, &scaling); + EXPECT_EQ(result_cpp, result_c); +} + +TEST_F(AssimpAPITest_aiMatrix4x4, aiMatrix4FromToTest) { + // Use predetermined vectors to prevent running into division by zero. + const auto from = aiVector3D(1,2,1).Normalize(), to = aiVector3D(-1,1,1).Normalize(); + aiMatrix4x4::FromToMatrix(from, to, result_cpp); + aiMatrix4FromTo(&result_c, &from, &to); + EXPECT_EQ(result_cpp, result_c); +} diff --git a/test/unit/AssimpAPITest_aiQuaternion.cpp b/test/unit/AssimpAPITest_aiQuaternion.cpp new file mode 100644 index 000000000..6bdef5a15 --- /dev/null +++ b/test/unit/AssimpAPITest_aiQuaternion.cpp @@ -0,0 +1,135 @@ +/* +--------------------------------------------------------------------------- +Open Asset Import Library (assimp) +--------------------------------------------------------------------------- + +Copyright (c) 2006-2020, assimp team + + + +All rights reserved. + +Redistribution and use of this software in source and binary forms, +with or without modification, are permitted provided that the following +conditions are met: + +* Redistributions of source code must retain the above +copyright notice, this list of conditions and the +following disclaimer. + +* Redistributions in binary form must reproduce the above +copyright notice, this list of conditions and the +following disclaimer in the documentation and/or other +materials provided with the distribution. + +* Neither the name of the assimp team, nor the names of its +contributors may be used to endorse or promote products +derived from this software without specific prior +written permission of the assimp team. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +--------------------------------------------------------------------------- +*/ +#include "UnitTestPCH.h" +#include "MathTest.h" + +using namespace Assimp; + +class AssimpAPITest_aiQuaternion : public AssimpMathTest { +protected: + virtual void SetUp() { + result_c = result_cpp = aiQuaternion(); + } + + aiQuaternion result_c, result_cpp; +}; + +TEST_F(AssimpAPITest_aiQuaternion, aiCreateQuaternionFromMatrixTest) { + // Use a predetermined transformation matrix + // to prevent running into division by zero. + aiMatrix3x3 m, r; + aiMatrix3x3::Translation(aiVector2D(14,-25), m); + aiMatrix3x3::RotationZ(Math::PI() / 4.0f, r); + m = m * r; + + result_cpp = aiQuaternion(m); + aiCreateQuaternionFromMatrix(&result_c, &m); + EXPECT_EQ(result_cpp, result_c); +} + +TEST_F(AssimpAPITest_aiQuaternion, aiQuaternionFromEulerAnglesTest) { + const float x(RandPI.next()), + y(RandPI.next()), + z(RandPI.next()); + result_cpp = aiQuaternion(x, y, z); + aiQuaternionFromEulerAngles(&result_c, x, y, z); + EXPECT_EQ(result_cpp, result_c); +} + +TEST_F(AssimpAPITest_aiQuaternion, aiQuaternionFromAxisAngleTest) { + const float angle(RandPI.next()); + const aiVector3D axis(random_unit_vec3()); + result_cpp = aiQuaternion(axis, angle); + aiQuaternionFromAxisAngle(&result_c, &axis, angle); + EXPECT_EQ(result_cpp, result_c); +} + +TEST_F(AssimpAPITest_aiQuaternion, aiQuaternionFromNormalizedQuaternionTest) { + const auto qvec3 = random_unit_vec3(); + result_cpp = aiQuaternion(qvec3); + aiQuaternionFromNormalizedQuaternion(&result_c, &qvec3); + EXPECT_EQ(result_cpp, result_c); +} + +TEST_F(AssimpAPITest_aiQuaternion, aiQuaternionAreEqualTest) { + result_c = result_cpp = random_quat(); + EXPECT_EQ(result_cpp == result_c, + (bool)aiQuaternionAreEqual(&result_cpp, &result_c)); +} + +TEST_F(AssimpAPITest_aiQuaternion, aiQuaternionAreEqualEpsilonTest) { + result_c = result_cpp = random_quat(); + EXPECT_EQ(result_cpp.Equal(result_c, Epsilon), + (bool)aiQuaternionAreEqualEpsilon(&result_cpp, &result_c, Epsilon)); +} + +TEST_F(AssimpAPITest_aiQuaternion, aiQuaternionNormalizeTest) { + result_c = result_cpp = random_quat(); + aiQuaternionNormalize(&result_c); + EXPECT_EQ(result_cpp.Normalize(), result_c); +} + +TEST_F(AssimpAPITest_aiQuaternion, aiQuaternionConjugateTest) { + result_c = result_cpp = random_quat(); + aiQuaternionConjugate(&result_c); + EXPECT_EQ(result_cpp.Conjugate(), result_c); +} + +TEST_F(AssimpAPITest_aiQuaternion, aiQuaternionMultiplyTest) { + const aiQuaternion temp = random_quat(); + result_c = result_cpp = random_quat(); + result_cpp = result_cpp * temp; + aiQuaternionMultiply(&result_c, &temp); + EXPECT_EQ(result_cpp, result_c); +} + +TEST_F(AssimpAPITest_aiQuaternion, aiQuaternionInterpolateTest) { + // Use predetermined quaternions to prevent division by zero + // during slerp calculations. + const float INTERPOLATION(0.5f); + const auto q1 = aiQuaternion(aiVector3D(-1,1,1).Normalize(), Math::PI() / 4.0f); + const auto q2 = aiQuaternion(aiVector3D(1,2,1).Normalize(), Math::PI() / 2.0f); + aiQuaternion::Interpolate(result_cpp, q1, q2, INTERPOLATION); + aiQuaternionInterpolate(&result_c, &q1, &q2, INTERPOLATION); + EXPECT_EQ(result_cpp, result_c); +} diff --git a/test/unit/AssimpAPITest_aiVector2D.cpp b/test/unit/AssimpAPITest_aiVector2D.cpp new file mode 100644 index 000000000..55df06025 --- /dev/null +++ b/test/unit/AssimpAPITest_aiVector2D.cpp @@ -0,0 +1,140 @@ +/* +--------------------------------------------------------------------------- +Open Asset Import Library (assimp) +--------------------------------------------------------------------------- + +Copyright (c) 2006-2020, assimp team + + + +All rights reserved. + +Redistribution and use of this software in source and binary forms, +with or without modification, are permitted provided that the following +conditions are met: + +* Redistributions of source code must retain the above +copyright notice, this list of conditions and the +following disclaimer. + +* Redistributions in binary form must reproduce the above +copyright notice, this list of conditions and the +following disclaimer in the documentation and/or other +materials provided with the distribution. + +* Neither the name of the assimp team, nor the names of its +contributors may be used to endorse or promote products +derived from this software without specific prior +written permission of the assimp team. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +--------------------------------------------------------------------------- +*/ +#include "UnitTestPCH.h" +#include "MathTest.h" + +using namespace Assimp; + +class AssimpAPITest_aiVector2D : public AssimpMathTest { +protected: + virtual void SetUp() { + result_c = result_cpp = aiVector2D(); + temp = random_vec2(); // Generates a random 2D vector != null vector. + } + + aiVector2D result_c, result_cpp, temp; +}; + +TEST_F(AssimpAPITest_aiVector2D, aiVector2AreEqualTest) { + result_c = result_cpp = random_vec2(); + EXPECT_EQ(result_cpp == result_c, + (bool)aiVector2AreEqual(&result_cpp, &result_c)); +} + +TEST_F(AssimpAPITest_aiVector2D, aiVector2AreEqualEpsilonTest) { + result_c = result_cpp = random_vec2(); + EXPECT_EQ(result_cpp.Equal(result_c, Epsilon), + (bool)aiVector2AreEqualEpsilon(&result_cpp, &result_c, Epsilon)); +} + +TEST_F(AssimpAPITest_aiVector2D, aiVector2AddTest) { + result_c = result_cpp = random_vec2(); + result_cpp += temp; + aiVector2Add(&result_c, &temp); + EXPECT_EQ(result_cpp, result_c); +} + +TEST_F(AssimpAPITest_aiVector2D, aiVector2SubtractTest) { + result_c = result_cpp = random_vec2(); + result_cpp -= temp; + aiVector2Subtract(&result_c, &temp); + EXPECT_EQ(result_cpp, result_c); +} + +TEST_F(AssimpAPITest_aiVector2D, aiVector2ScaleTest) { + const float FACTOR = RandNonZero.next(); + result_c = result_cpp = random_vec2(); + result_cpp *= FACTOR; + aiVector2Scale(&result_c, FACTOR); + EXPECT_EQ(result_cpp, result_c); +} + +TEST_F(AssimpAPITest_aiVector2D, aiVector2SymMulTest) { + result_c = result_cpp = random_vec2(); + result_cpp = result_cpp.SymMul(temp); + aiVector2SymMul(&result_c, &temp); + EXPECT_EQ(result_cpp, result_c); +} + +TEST_F(AssimpAPITest_aiVector2D, aiVector2DivideByScalarTest) { + const float DIVISOR = RandNonZero.next(); + result_c = result_cpp = random_vec2(); + result_cpp /= DIVISOR; + aiVector2DivideByScalar(&result_c, DIVISOR); + EXPECT_EQ(result_cpp, result_c); +} + +TEST_F(AssimpAPITest_aiVector2D, aiVector2DivideByVectorTest) { + result_c = result_cpp = random_vec2(); + result_cpp = result_cpp / temp; + aiVector2DivideByVector(&result_c, &temp); + EXPECT_EQ(result_cpp, result_c); +} + +TEST_F(AssimpAPITest_aiVector2D, aiVector2LengthTest) { + result_c = result_cpp = random_vec2(); + EXPECT_EQ(result_cpp.Length(), aiVector2Length(&result_c)); +} + +TEST_F(AssimpAPITest_aiVector2D, aiVector2SquareLengthTest) { + result_c = result_cpp = random_vec2(); + EXPECT_EQ(result_cpp.SquareLength(), aiVector2SquareLength(&result_c)); +} + +TEST_F(AssimpAPITest_aiVector2D, aiVector2NegateTest) { + result_c = result_cpp = random_vec2(); + aiVector2Negate(&result_c); + EXPECT_EQ(-result_cpp, result_c); +} + +TEST_F(AssimpAPITest_aiVector2D, aiVector2DotProductTest) { + result_c = result_cpp = random_vec2(); + EXPECT_EQ(result_cpp * result_c, + aiVector2DotProduct(&result_cpp, &result_c)); +} + +TEST_F(AssimpAPITest_aiVector2D, aiVector2NormalizeTest) { + result_c = result_cpp = random_vec2(); + aiVector2Normalize(&result_c); + EXPECT_EQ(result_cpp.Normalize(), result_c); +} diff --git a/test/unit/AssimpAPITest_aiVector3D.cpp b/test/unit/AssimpAPITest_aiVector3D.cpp new file mode 100644 index 000000000..a59867f10 --- /dev/null +++ b/test/unit/AssimpAPITest_aiVector3D.cpp @@ -0,0 +1,185 @@ +/* +--------------------------------------------------------------------------- +Open Asset Import Library (assimp) +--------------------------------------------------------------------------- + +Copyright (c) 2006-2020, assimp team + + + +All rights reserved. + +Redistribution and use of this software in source and binary forms, +with or without modification, are permitted provided that the following +conditions are met: + +* Redistributions of source code must retain the above +copyright notice, this list of conditions and the +following disclaimer. + +* Redistributions in binary form must reproduce the above +copyright notice, this list of conditions and the +following disclaimer in the documentation and/or other +materials provided with the distribution. + +* Neither the name of the assimp team, nor the names of its +contributors may be used to endorse or promote products +derived from this software without specific prior +written permission of the assimp team. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +--------------------------------------------------------------------------- +*/ +#include "UnitTestPCH.h" +#include "MathTest.h" + +using namespace Assimp; + +class AssimpAPITest_aiVector3D : public AssimpMathTest { +protected: + virtual void SetUp() { + result_c = result_cpp = aiVector3D(); + temp = random_vec3(); // Generates a random 3D vector != null vector. + } + + aiVector3D result_c, result_cpp, temp; +}; + +TEST_F(AssimpAPITest_aiVector3D, aiVector3AreEqualTest) { + result_c = result_cpp = random_vec3(); + EXPECT_EQ(result_cpp == result_c, + (bool)aiVector3AreEqual(&result_cpp, &result_c)); +} + +TEST_F(AssimpAPITest_aiVector3D, aiVector3AreEqualEpsilonTest) { + result_c = result_cpp = random_vec3(); + EXPECT_EQ(result_cpp.Equal(result_c, Epsilon), + (bool)aiVector3AreEqualEpsilon(&result_cpp, &result_c, Epsilon)); +} + +TEST_F(AssimpAPITest_aiVector3D, aiVector3LessThanTest) { + result_c = result_cpp = random_vec3(); + EXPECT_EQ(result_cpp < temp, + (bool)aiVector3LessThan(&result_c, &temp)); +} + +TEST_F(AssimpAPITest_aiVector3D, aiVector3AddTest) { + result_c = result_cpp = random_vec3(); + result_cpp += temp; + aiVector3Add(&result_c, &temp); + EXPECT_EQ(result_cpp, result_c); +} + +TEST_F(AssimpAPITest_aiVector3D, aiVector3SubtractTest) { + result_c = result_cpp = random_vec3(); + result_cpp -= temp; + aiVector3Subtract(&result_c, &temp); + EXPECT_EQ(result_cpp, result_c); +} + +TEST_F(AssimpAPITest_aiVector3D, aiVector3ScaleTest) { + const float FACTOR = RandNonZero.next(); + result_c = result_cpp = random_vec3(); + result_cpp *= FACTOR; + aiVector3Scale(&result_c, FACTOR); + EXPECT_EQ(result_cpp, result_c); +} + +TEST_F(AssimpAPITest_aiVector3D, aiVector3SymMulTest) { + result_c = result_cpp = random_vec3(); + result_cpp = result_cpp.SymMul(temp); + aiVector3SymMul(&result_c, &temp); + EXPECT_EQ(result_cpp, result_c); +} + +TEST_F(AssimpAPITest_aiVector3D, aiVector3DivideByScalarTest) { + const float DIVISOR = RandNonZero.next(); + result_c = result_cpp = random_vec3(); + result_cpp /= DIVISOR; + aiVector3DivideByScalar(&result_c, DIVISOR); + EXPECT_EQ(result_cpp, result_c); +} + +TEST_F(AssimpAPITest_aiVector3D, aiVector3DivideByVectorTest) { + result_c = result_cpp = random_vec3(); + result_cpp = result_cpp / temp; + aiVector3DivideByVector(&result_c, &temp); + EXPECT_EQ(result_cpp, result_c); +} + +TEST_F(AssimpAPITest_aiVector3D, aiVector3LengthTest) { + result_c = result_cpp = random_vec3(); + EXPECT_EQ(result_cpp.Length(), aiVector3Length(&result_c)); +} + +TEST_F(AssimpAPITest_aiVector3D, aiVector3SquareLengthTest) { + result_c = result_cpp = random_vec3(); + EXPECT_EQ(result_cpp.SquareLength(), aiVector3SquareLength(&result_c)); +} + +TEST_F(AssimpAPITest_aiVector3D, aiVector3NegateTest) { + result_c = result_cpp = random_vec3(); + aiVector3Negate(&result_c); + EXPECT_EQ(-result_cpp, result_c); +} + +TEST_F(AssimpAPITest_aiVector3D, aiVector3DotProductTest) { + result_c = result_cpp = random_vec3(); + EXPECT_EQ(result_cpp * result_c, + aiVector3DotProduct(&result_cpp, &result_c)); +} + +TEST_F(AssimpAPITest_aiVector3D, aiVector3CrossProductTest) { + result_c = result_cpp = random_vec3(); + result_cpp = result_cpp ^ temp; + aiVector3CrossProduct(&result_c, &result_c, &temp); + EXPECT_EQ(result_cpp, result_c); +} + +TEST_F(AssimpAPITest_aiVector3D, aiVector3NormalizeTest) { + result_c = result_cpp = random_vec3(); + aiVector3Normalize(&result_c); + EXPECT_EQ(result_cpp.Normalize(), result_c); +} + +TEST_F(AssimpAPITest_aiVector3D, aiVector3NormalizeSafeTest) { + result_c = result_cpp = random_vec3(); + aiVector3NormalizeSafe(&result_c); + EXPECT_EQ(result_cpp.NormalizeSafe(), result_c); +} + +TEST_F(AssimpAPITest_aiVector3D, aiVector3RotateByQuaternionTest) { + aiVector3D v_c, v_cpp; + v_c = v_cpp = random_vec3(); + const auto q = random_quat(); + aiVector3RotateByQuaternion(&v_c, &q); + EXPECT_EQ(q.Rotate(v_cpp), v_c); +} + +TEST_F(AssimpAPITest_aiVector3D, aiTransformVecByMatrix3Test) { + const auto m = random_mat3(); + aiVector3D v_c, v_cpp; + v_c = v_cpp = random_vec3(); + v_cpp *= m; + aiTransformVecByMatrix3(&v_c, &m); + EXPECT_EQ(v_cpp, v_c); +} + +TEST_F(AssimpAPITest_aiVector3D, aiTransformVecByMatrix4Test) { + const auto m = random_mat4(); + aiVector3D v_c, v_cpp; + v_c = v_cpp = random_vec3(); + v_cpp *= m; + aiTransformVecByMatrix4(&v_c, &m); + EXPECT_EQ(v_cpp, v_c); +} diff --git a/test/unit/MathTest.cpp b/test/unit/MathTest.cpp new file mode 100644 index 000000000..69b23f625 --- /dev/null +++ b/test/unit/MathTest.cpp @@ -0,0 +1,56 @@ +/* +--------------------------------------------------------------------------- +Open Asset Import Library (assimp) +--------------------------------------------------------------------------- + +Copyright (c) 2006-2020, assimp team + + + +All rights reserved. + +Redistribution and use of this software in source and binary forms, +with or without modification, are permitted provided that the following +conditions are met: + +* Redistributions of source code must retain the above +copyright notice, this list of conditions and the +following disclaimer. + +* Redistributions in binary form must reproduce the above +copyright notice, this list of conditions and the +following disclaimer in the documentation and/or other +materials provided with the distribution. + +* Neither the name of the assimp team, nor the names of its +contributors may be used to endorse or promote products +derived from this software without specific prior +written permission of the assimp team. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +--------------------------------------------------------------------------- +*/ +#include "MathTest.h" + +namespace Assimp { + +// Initialize epsilon value. +const float AssimpMathTest::Epsilon = Math::getEpsilon(); + +// Initialize with an interval of [1,100]. +RandomUniformFloatGenerator AssimpMathTest::RandNonZero(1.0f, 100.0f); + +// Initialize with an interval of [-PI,PI] inclusively. +RandomUniformFloatGenerator AssimpMathTest::RandPI(-Math::PI(), Math::PI()); + +} diff --git a/test/unit/MathTest.h b/test/unit/MathTest.h new file mode 100644 index 000000000..19401b29a --- /dev/null +++ b/test/unit/MathTest.h @@ -0,0 +1,103 @@ +/* +--------------------------------------------------------------------------- +Open Asset Import Library (assimp) +--------------------------------------------------------------------------- + +Copyright (c) 2006-2020, assimp team + + + +All rights reserved. + +Redistribution and use of this software in source and binary forms, +with or without modification, are permitted provided that the following +conditions are met: + +* Redistributions of source code must retain the above +copyright notice, this list of conditions and the +following disclaimer. + +* Redistributions in binary form must reproduce the above +copyright notice, this list of conditions and the +following disclaimer in the documentation and/or other +materials provided with the distribution. + +* Neither the name of the assimp team, nor the names of its +contributors may be used to endorse or promote products +derived from this software without specific prior +written permission of the assimp team. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +--------------------------------------------------------------------------- +*/ + +#ifndef ASSIMP_MATH_TEST_H +#define ASSIMP_MATH_TEST_H + +#include "UnitTestPCH.h" +#include +#include "RandomNumberGeneration.h" + +namespace Assimp { + +/** Custom test class providing several math related utilities. */ +class AssimpMathTest : public ::testing::Test { +public: + /** Return a random non-null 2D vector. */ + inline static aiVector2D random_vec2() { + return aiVector2D(RandNonZero.next(), RandNonZero.next()); + } + + /** Return a random non-null 3D vector. */ + inline static aiVector3D random_vec3() { + return aiVector3D(RandNonZero.next(), RandNonZero.next(),RandNonZero.next()); + } + + /** Return a random unit 3D vector. */ + inline static aiVector3D random_unit_vec3() { + return random_vec3().NormalizeSafe(); + } + + /** Return a quaternion with random orientation and + * rotation angle around axis. */ + inline static aiQuaternion random_quat() { + return aiQuaternion(random_unit_vec3(), RandPI.next()); + } + + /** Return a random non-null 3x3 matrix. */ + inline static aiMatrix3x3 random_mat3() { + return aiMatrix3x3( + RandNonZero.next(), RandNonZero.next(),RandNonZero.next(), + RandNonZero.next(), RandNonZero.next(),RandNonZero.next(), + RandNonZero.next(), RandNonZero.next(),RandNonZero.next()); + } + + /** Return a random non-null 4x4 matrix. */ + inline static aiMatrix4x4 random_mat4() { + return aiMatrix4x4( + RandNonZero.next(), RandNonZero.next(),RandNonZero.next(), RandNonZero.next(), + RandNonZero.next(), RandNonZero.next(),RandNonZero.next(), RandNonZero.next(), + RandNonZero.next(), RandNonZero.next(),RandNonZero.next(), RandNonZero.next(), + RandNonZero.next(), RandNonZero.next(),RandNonZero.next(), RandNonZero.next()); + } + + /** Epsilon value to use in tests. */ + static const float Epsilon; + + /** Random number generators. */ + static RandomUniformFloatGenerator RandNonZero, RandPI; +}; + +} + +#endif // ASSIMP_MATH_TEST_H diff --git a/test/unit/RandomNumberGeneration.h b/test/unit/RandomNumberGeneration.h new file mode 100644 index 000000000..a313f34ae --- /dev/null +++ b/test/unit/RandomNumberGeneration.h @@ -0,0 +1,82 @@ +/* +--------------------------------------------------------------------------- +Open Asset Import Library (assimp) +--------------------------------------------------------------------------- + +Copyright (c) 2006-2020, assimp team + +All rights reserved. + +Redistribution and use of this software in source and binary forms, +with or without modification, are permitted provided that the following +conditions are met: + +* Redistributions of source code must retain the above +copyright notice, this list of conditions and the +following disclaimer. + +* Redistributions in binary form must reproduce the above +copyright notice, this list of conditions and the +following disclaimer in the documentation and/or other +materials provided with the distribution. + +* Neither the name of the assimp team, nor the names of its +contributors may be used to endorse or promote products +derived from this software without specific prior +written permission of the assimp team. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +--------------------------------------------------------------------------- +*/ + +#ifndef ASSIMP_RANDOM_NUMBER_GENERATION_H +#define ASSIMP_RANDOM_NUMBER_GENERATION_H + +#include + +namespace Assimp { + +/** Helper class to use for generating pseudo-random + * real numbers, with a uniform distribution. */ +template +class RandomUniformRealGenerator { +public: + RandomUniformRealGenerator() : + dist_(), + rd_(), + re_(rd_()) { + // empty + } + + RandomUniformRealGenerator(T min, T max) : + dist_(min, max), + rd_(), + re_(rd_()) { + // empty + } + + inline T next() { + return dist_(re_); + } + +private: + std::uniform_real_distribution dist_; + std::random_device rd_; + std::default_random_engine re_; +}; + +using RandomUniformFloatGenerator = RandomUniformRealGenerator; + +} + +#endif // ASSIMP_RANDOM_NUMBER_GENERATION_H