diff options
Diffstat (limited to '3rdparty/glm/source/test/perf/perf_matrix_mul_vector.cpp')
| -rw-r--r-- | 3rdparty/glm/source/test/perf/perf_matrix_mul_vector.cpp | 154 |
1 files changed, 154 insertions, 0 deletions
diff --git a/3rdparty/glm/source/test/perf/perf_matrix_mul_vector.cpp b/3rdparty/glm/source/test/perf/perf_matrix_mul_vector.cpp new file mode 100644 index 0000000..8e555f8 --- /dev/null +++ b/3rdparty/glm/source/test/perf/perf_matrix_mul_vector.cpp @@ -0,0 +1,154 @@ +#define GLM_FORCE_INLINE +#include <glm/ext/matrix_float2x2.hpp> +#include <glm/ext/matrix_double2x2.hpp> +#include <glm/ext/matrix_float3x3.hpp> +#include <glm/ext/matrix_double3x3.hpp> +#include <glm/ext/matrix_float4x4.hpp> +#include <glm/ext/matrix_double4x4.hpp> +#include <glm/ext/matrix_transform.hpp> +#include <glm/ext/matrix_relational.hpp> +#include <glm/ext/vector_float4.hpp> +#if GLM_CONFIG_SIMD == GLM_ENABLE +#include <glm/gtc/type_aligned.hpp> +#include <vector> +#include <chrono> +#include <cstdio> + +template <typename matType, typename vecType> +static void test_mat_mul_vec(matType const& M, std::vector<vecType> const& I, std::vector<vecType>& O) +{ + for (std::size_t i = 0, n = I.size(); i < n; ++i) + O[i] = M * I[i]; +} + +template <typename matType, typename vecType> +static int launch_mat_mul_vec(std::vector<vecType>& O, matType const& Transform, vecType const& Scale, std::size_t Samples) +{ + typedef typename matType::value_type T; + + std::vector<vecType> I(Samples); + O.resize(Samples); + + for(std::size_t i = 0; i < Samples; ++i) + I[i] = Scale * static_cast<T>(i); + + std::chrono::high_resolution_clock::time_point t1 = std::chrono::high_resolution_clock::now(); + test_mat_mul_vec<matType, vecType>(Transform, I, O); + std::chrono::high_resolution_clock::time_point t2 = std::chrono::high_resolution_clock::now(); + + return static_cast<int>(std::chrono::duration_cast<std::chrono::microseconds>(t2 - t1).count()); +} + +template <typename packedMatType, typename packedVecType, typename alignedMatType, typename alignedVecType> +static int comp_mat2_mul_vec2(std::size_t Samples) +{ + typedef typename packedMatType::value_type T; + + int Error = 0; + + packedMatType const Transform(1, 2, 3, 4); + packedVecType const Scale(0.01, 0.02); + + std::vector<packedVecType> SISD; + std::printf("- SISD: %d us\n", launch_mat_mul_vec<packedMatType, packedVecType>(SISD, Transform, Scale, Samples)); + + std::vector<alignedVecType> SIMD; + std::printf("- SIMD: %d us\n", launch_mat_mul_vec<alignedMatType, alignedVecType>(SIMD, Transform, Scale, Samples)); + + for(std::size_t i = 0; i < Samples; ++i) + { + packedVecType const A = SISD[i]; + packedVecType const B = packedVecType(SIMD[i]); + Error += glm::all(glm::equal(A, B, static_cast<T>(0.001))) ? 0 : 1; + } + + return Error; +} + +template <typename packedMatType, typename packedVecType, typename alignedMatType, typename alignedVecType> +static int comp_mat3_mul_vec3(std::size_t Samples) +{ + typedef typename packedMatType::value_type T; + + int Error = 0; + + packedMatType const Transform(1, 2, 3, 4, 5, 6, 7, 8, 9); + packedVecType const Scale(0.01, 0.02, 0.05); + + std::vector<packedVecType> SISD; + std::printf("- SISD: %d us\n", launch_mat_mul_vec<packedMatType, packedVecType>(SISD, Transform, Scale, Samples)); + + std::vector<alignedVecType> SIMD; + std::printf("- SIMD: %d us\n", launch_mat_mul_vec<alignedMatType, alignedVecType>(SIMD, Transform, Scale, Samples)); + + for(std::size_t i = 0; i < Samples; ++i) + { + packedVecType const A = SISD[i]; + packedVecType const B = SIMD[i]; + Error += glm::all(glm::equal(A, B, static_cast<T>(0.001))) ? 0 : 1; + } + + return Error; +} + +template <typename packedMatType, typename packedVecType, typename alignedMatType, typename alignedVecType> +static int comp_mat4_mul_vec4(std::size_t Samples) +{ + typedef typename packedMatType::value_type T; + + int Error = 0; + + packedMatType const Transform(1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16); + packedVecType const Scale(0.01, 0.02, 0.03, 0.05); + + std::vector<packedVecType> SISD; + std::printf("- SISD: %d us\n", launch_mat_mul_vec<packedMatType, packedVecType>(SISD, Transform, Scale, Samples)); + + std::vector<alignedVecType> SIMD; + std::printf("- SIMD: %d us\n", launch_mat_mul_vec<alignedMatType, alignedVecType>(SIMD, Transform, Scale, Samples)); + + for(std::size_t i = 0; i < Samples; ++i) + { + packedVecType const A = SISD[i]; + packedVecType const B = SIMD[i]; + Error += glm::all(glm::equal(A, B, static_cast<T>(0.001))) ? 0 : 1; + } + + return Error; +} + +int main() +{ + std::size_t const Samples = 100000; + + int Error = 0; + + std::printf("mat2 * vec2:\n"); + Error += comp_mat2_mul_vec2<glm::mat2, glm::vec2, glm::aligned_mat2, glm::aligned_vec2>(Samples); + + std::printf("dmat2 * dvec2:\n"); + Error += comp_mat2_mul_vec2<glm::dmat2, glm::dvec2,glm::aligned_dmat2, glm::aligned_dvec2>(Samples); + + std::printf("mat3 * vec3:\n"); + Error += comp_mat3_mul_vec3<glm::mat3, glm::vec3, glm::aligned_mat3, glm::aligned_vec3>(Samples); + + std::printf("dmat3 * dvec3:\n"); + Error += comp_mat3_mul_vec3<glm::dmat3, glm::dvec3, glm::aligned_dmat3, glm::aligned_dvec3>(Samples); + + std::printf("mat4 * vec4:\n"); + Error += comp_mat4_mul_vec4<glm::mat4, glm::vec4, glm::aligned_mat4, glm::aligned_vec4>(Samples); + + std::printf("dmat4 * dvec4:\n"); + Error += comp_mat4_mul_vec4<glm::dmat4, glm::dvec4, glm::aligned_dmat4, glm::aligned_dvec4>(Samples); + + return Error; +} + +#else + +int main() +{ + return 0; +} + +#endif |