259 lines
6.0 KiB
C++
259 lines
6.0 KiB
C++
///////////////////////////////////////////////////////////////////////////////////////////////////
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// OpenGL Mathematics Copyright (c) 2005 - 2011 G-Truc Creation (www.g-truc.net)
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///////////////////////////////////////////////////////////////////////////////////////////////////
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// Created : 2011-01-15
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// Updated : 2011-09-13
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// Licence : This source is under MIT licence
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// File : test/core/func_common.cpp
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///////////////////////////////////////////////////////////////////////////////////////////////////
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#include <glm/glm.hpp>
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int test_floatBitsToInt()
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{
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int Error = 0;
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{
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float A = 1.0f;
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int B = glm::floatBitsToInt(A);
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float C = glm::intBitsToFloat(B);
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int D = *(int*)&A;
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Error += B == D ? 0 : 1;
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Error += A == C ? 0 : 1;
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}
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{
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glm::vec2 A(1.0f, 2.0f);
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glm::ivec2 B = glm::floatBitsToInt(A);
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glm::vec2 C = glm::intBitsToFloat(B);
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Error += B.x == *(int*)&(A.x) ? 0 : 1;
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Error += B.y == *(int*)&(A.y) ? 0 : 1;
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Error += A == C? 0 : 1;
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}
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{
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glm::vec3 A(1.0f, 2.0f, 3.0f);
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glm::ivec3 B = glm::floatBitsToInt(A);
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glm::vec3 C = glm::intBitsToFloat(B);
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Error += B.x == *(int*)&(A.x) ? 0 : 1;
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Error += B.y == *(int*)&(A.y) ? 0 : 1;
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Error += B.z == *(int*)&(A.z) ? 0 : 1;
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Error += A == C? 0 : 1;
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}
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{
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glm::vec4 A(1.0f, 2.0f, 3.0f, 4.0f);
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glm::ivec4 B = glm::floatBitsToInt(A);
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glm::vec4 C = glm::intBitsToFloat(B);
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Error += B.x == *(int*)&(A.x) ? 0 : 1;
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Error += B.y == *(int*)&(A.y) ? 0 : 1;
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Error += B.z == *(int*)&(A.z) ? 0 : 1;
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Error += B.w == *(int*)&(A.w) ? 0 : 1;
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Error += A == C? 0 : 1;
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}
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return Error;
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}
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int test_floatBitsToUint()
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{
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int Error = 0;
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{
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float A = 1.0f;
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glm::uint B = glm::floatBitsToUint(A);
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float C = glm::intBitsToFloat(B);
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Error += B == *(glm::uint*)&A ? 0 : 1;
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Error += A == C? 0 : 1;
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}
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{
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glm::vec2 A(1.0f, 2.0f);
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glm::uvec2 B = glm::floatBitsToUint(A);
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glm::vec2 C = glm::uintBitsToFloat(B);
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Error += B.x == *(glm::uint*)&(A.x) ? 0 : 1;
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Error += B.y == *(glm::uint*)&(A.y) ? 0 : 1;
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Error += A == C ? 0 : 1;
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}
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{
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glm::vec3 A(1.0f, 2.0f, 3.0f);
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glm::uvec3 B = glm::floatBitsToUint(A);
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glm::vec3 C = glm::uintBitsToFloat(B);
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Error += B.x == *(glm::uint*)&(A.x) ? 0 : 1;
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Error += B.y == *(glm::uint*)&(A.y) ? 0 : 1;
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Error += B.z == *(glm::uint*)&(A.z) ? 0 : 1;
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Error += A == C? 0 : 1;
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}
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{
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glm::vec4 A(1.0f, 2.0f, 3.0f, 4.0f);
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glm::uvec4 B = glm::floatBitsToUint(A);
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glm::vec4 C = glm::uintBitsToFloat(B);
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Error += B.x == *(glm::uint*)&(A.x) ? 0 : 1;
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Error += B.y == *(glm::uint*)&(A.y) ? 0 : 1;
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Error += B.z == *(glm::uint*)&(A.z) ? 0 : 1;
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Error += B.w == *(glm::uint*)&(A.w) ? 0 : 1;
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Error += A == C? 0 : 1;
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}
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return Error;
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}
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int test_mix()
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{
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int Error = 0;
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{
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float A = glm::mix(0.f, 1.f, true);
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Error += A == 1.f ? 0 : 1;
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float B = glm::mix(0.f, 1.f, false);
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Error += B == 0.f ? 0 : 1;
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}
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{
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float A = glm::mix(0.f, 1.f, 1.f);
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Error += A == 1.f ? 0 : 1;
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float B = glm::mix(0.f, 1.f, 0.f);
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Error += B == 0.f ? 0 : 1;
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}
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return Error;
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}
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int test_round()
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{
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int Error = 0;
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{
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float A = glm::round(0.0f);
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Error += A == 0.0f ? 0 : 1;
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float B = glm::round(0.5f);
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Error += B == 1.0f ? 0 : 1;
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float C = glm::round(1.0f);
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Error += C == 1.0f ? 0 : 1;
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float D = glm::round(0.1f);
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Error += D == 0.0f ? 0 : 1;
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float E = glm::round(0.9f);
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Error += E == 1.0f ? 0 : 1;
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float F = glm::round(1.5f);
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Error += F == 2.0f ? 0 : 1;
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float G = glm::round(1.9f);
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Error += G == 2.0f ? 0 : 1;
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}
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{
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float A = glm::round(-0.0f);
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Error += A == 0.0f ? 0 : 1;
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float B = glm::round(-0.5f);
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Error += B == -1.0f ? 0 : 1;
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float C = glm::round(-1.0f);
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Error += C == -1.0f ? 0 : 1;
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float D = glm::round(-0.1f);
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Error += D == 0.0f ? 0 : 1;
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float E = glm::round(-0.9f);
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Error += E == -1.0f ? 0 : 1;
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float F = glm::round(-1.5f);
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Error += F == -2.0f ? 0 : 1;
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float G = glm::round(-1.9f);
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Error += G == -2.0f ? 0 : 1;
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}
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return Error;
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}
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int test_roundEven()
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{
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int Error = 0;
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{
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float A = glm::roundEven(-1.5f);
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Error += A == -2.0f ? 0 : 1;
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Error += 0;
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}
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{
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float A = glm::roundEven(0.0f);
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Error += A == 0.0f ? 0 : 1;
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float B = glm::roundEven(0.5f);
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Error += B == 0.0f ? 0 : 1;
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float C = glm::roundEven(1.0f);
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Error += C == 1.0f ? 0 : 1;
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float D = glm::roundEven(0.1f);
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Error += D == 0.0f ? 0 : 1;
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float E = glm::roundEven(0.9f);
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Error += E == 1.0f ? 0 : 1;
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float F = glm::roundEven(1.5f);
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Error += F == 2.0f ? 0 : 1;
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float G = glm::roundEven(1.9f);
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Error += G == 2.0f ? 0 : 1;
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}
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{
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float A = glm::roundEven(-0.0f);
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Error += A == 0.0f ? 0 : 1;
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float B = glm::roundEven(-0.5f);
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Error += B == -0.0f ? 0 : 1;
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float C = glm::roundEven(-1.0f);
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Error += C == -1.0f ? 0 : 1;
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float D = glm::roundEven(-0.1f);
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Error += D == 0.0f ? 0 : 1;
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float E = glm::roundEven(-0.9f);
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Error += E == -1.0f ? 0 : 1;
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float F = glm::roundEven(-1.5f);
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Error += F == -2.0f ? 0 : 1;
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float G = glm::roundEven(-1.9f);
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Error += G == -2.0f ? 0 : 1;
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}
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{
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float A = glm::roundEven(1.5f);
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Error += A == 2.0f ? 0 : 1;
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float B = glm::roundEven(2.5f);
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Error += B == 2.0f ? 0 : 1;
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float C = glm::roundEven(3.5f);
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Error += C == 4.0f ? 0 : 1;
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float D = glm::roundEven(4.5f);
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Error += D == 4.0f ? 0 : 1;
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float E = glm::roundEven(5.5f);
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Error += E == 6.0f ? 0 : 1;
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float F = glm::roundEven(6.5f);
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Error += F == 6.0f ? 0 : 1;
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float G = glm::roundEven(7.5f);
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Error += G == 8.0f ? 0 : 1;
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}
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{
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float A = glm::roundEven(-1.5f);
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Error += A == -2.0f ? 0 : 1;
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float B = glm::roundEven(-2.5f);
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Error += B == -2.0f ? 0 : 1;
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float C = glm::roundEven(-3.5f);
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Error += C == -4.0f ? 0 : 1;
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float D = glm::roundEven(-4.5f);
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Error += D == -4.0f ? 0 : 1;
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float E = glm::roundEven(-5.5f);
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Error += E == -6.0f ? 0 : 1;
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float F = glm::roundEven(-6.5f);
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Error += F == -6.0f ? 0 : 1;
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float G = glm::roundEven(-7.5f);
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Error += G == -8.0f ? 0 : 1;
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}
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return Error;
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}
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int main()
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{
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int Error = 0;
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Error += test_floatBitsToInt();
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Error += test_floatBitsToUint();
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Error += test_mix();
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Error += test_round();
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//Error += test_roundEven();
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return Error;
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}
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