glm/test/gtx/gtx_fast_square_root.cpp
2014-08-04 00:10:12 +02:00

55 lines
2.1 KiB
C++

///////////////////////////////////////////////////////////////////////////////////////////////////
// OpenGL Mathematics Copyright (c) 2005 - 2014 G-Truc Creation (www.g-truc.net)
///////////////////////////////////////////////////////////////////////////////////////////////////
// Created : 2013-10-25
// Updated : 2013-10-25
// Licence : This source is under MIT licence
// File : test/gtx/fast_square_root.cpp
///////////////////////////////////////////////////////////////////////////////////////////////////
#include <glm/gtx/fast_square_root.hpp>
#include <glm/gtc/type_precision.hpp>
#include <glm/gtc/epsilon.hpp>
#include <glm/vector_relational.hpp>
int test_fastInverseSqrt()
{
int Error(0);
Error += glm::epsilonEqual(glm::fastInverseSqrt(1.0f), 1.0f, 0.01f) ? 0 : 1;
Error += glm::epsilonEqual(glm::fastInverseSqrt(1.0), 1.0, 0.01) ? 0 : 1;
Error += glm::all(glm::epsilonEqual(glm::fastInverseSqrt(glm::vec2(1.0f)), glm::vec2(1.0f), 0.01f)) ? 0 : 1;
Error += glm::all(glm::epsilonEqual(glm::fastInverseSqrt(glm::dvec3(1.0)), glm::dvec3(1.0), 0.01)) ? 0 : 1;
Error += glm::all(glm::epsilonEqual(glm::fastInverseSqrt(glm::dvec4(1.0)), glm::dvec4(1.0), 0.01)) ? 0 : 1;
return 0;
}
int test_fastDistance()
{
int Error(0);
glm::mediump_f32 A = glm::fastDistance(glm::mediump_f32(0.0f), glm::mediump_f32(1.0f));
glm::mediump_f32 B = glm::fastDistance(glm::mediump_f32vec2(0.0f), glm::mediump_f32vec2(1.0f, 0.0f));
glm::mediump_f32 C = glm::fastDistance(glm::mediump_f32vec3(0.0f), glm::mediump_f32vec3(1.0f, 0.0f, 0.0f));
glm::mediump_f32 D = glm::fastDistance(glm::mediump_f32vec4(0.0f), glm::mediump_f32vec4(1.0f, 0.0f, 0.0f, 0.0f));
Error += glm::epsilonEqual(A, glm::mediump_f32(1.0f), glm::mediump_f32(0.01f)) ? 0 : 1;
Error += glm::epsilonEqual(B, glm::mediump_f32(1.0f), glm::mediump_f32(0.01f)) ? 0 : 1;
Error += glm::epsilonEqual(C, glm::mediump_f32(1.0f), glm::mediump_f32(0.01f)) ? 0 : 1;
Error += glm::epsilonEqual(D, glm::mediump_f32(1.0f), glm::mediump_f32(0.01f)) ? 0 : 1;
return Error;
}
int main()
{
int Error(0);
Error += test_fastInverseSqrt();
Error += test_fastDistance();
return Error;
}