380 lines
9.5 KiB
C++
380 lines
9.5 KiB
C++
#include <glm/gtc/random.hpp>
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#include <glm/gtc/epsilon.hpp>
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#if GLM_LANG & GLM_LANG_CXX0X_FLAG
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# include <array>
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#endif
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std::size_t const TestSamples = 10000;
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int test_linearRand()
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{
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int Error = 0;
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glm::int32 const Min = 16;
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glm::int32 const Max = 32;
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{
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glm::u8vec2 AMin(std::numeric_limits<glm::u8>::max());
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glm::u8vec2 AMax(std::numeric_limits<glm::u8>::min());
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{
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for(std::size_t i = 0; i < TestSamples; ++i)
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{
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glm::u8vec2 A = glm::linearRand(glm::u8vec2(Min), glm::u8vec2(Max));
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AMin = glm::min(AMin, A);
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AMax = glm::max(AMax, A);
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if(!glm::all(glm::lessThanEqual(A, glm::u8vec2(Max))))
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++Error;
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if(!glm::all(glm::greaterThanEqual(A, glm::u8vec2(Min))))
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++Error;
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assert(!Error);
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}
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Error += glm::all(glm::equal(AMin, glm::u8vec2(Min))) ? 0 : 1;
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Error += glm::all(glm::equal(AMax, glm::u8vec2(Max))) ? 0 : 1;
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assert(!Error);
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}
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glm::u16vec2 BMin(std::numeric_limits<glm::u16>::max());
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glm::u16vec2 BMax(std::numeric_limits<glm::u16>::min());
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{
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for(std::size_t i = 0; i < TestSamples; ++i)
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{
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glm::u16vec2 B = glm::linearRand(glm::u16vec2(Min), glm::u16vec2(Max));
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BMin = glm::min(BMin, B);
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BMax = glm::max(BMax, B);
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if(!glm::all(glm::lessThanEqual(B, glm::u16vec2(Max))))
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++Error;
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if(!glm::all(glm::greaterThanEqual(B, glm::u16vec2(Min))))
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++Error;
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assert(!Error);
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}
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Error += glm::all(glm::equal(BMin, glm::u16vec2(Min))) ? 0 : 1;
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Error += glm::all(glm::equal(BMax, glm::u16vec2(Max))) ? 0 : 1;
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assert(!Error);
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}
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glm::u32vec2 CMin(std::numeric_limits<glm::u32>::max());
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glm::u32vec2 CMax(std::numeric_limits<glm::u32>::min());
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{
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for(std::size_t i = 0; i < TestSamples; ++i)
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{
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glm::u32vec2 C = glm::linearRand(glm::u32vec2(Min), glm::u32vec2(Max));
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CMin = glm::min(CMin, C);
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CMax = glm::max(CMax, C);
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if(!glm::all(glm::lessThanEqual(C, glm::u32vec2(Max))))
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++Error;
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if(!glm::all(glm::greaterThanEqual(C, glm::u32vec2(Min))))
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++Error;
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assert(!Error);
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}
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Error += glm::all(glm::equal(CMin, glm::u32vec2(Min))) ? 0 : 1;
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Error += glm::all(glm::equal(CMax, glm::u32vec2(Max))) ? 0 : 1;
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assert(!Error);
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}
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glm::u64vec2 DMin(std::numeric_limits<glm::u64>::max());
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glm::u64vec2 DMax(std::numeric_limits<glm::u64>::min());
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{
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for(std::size_t i = 0; i < TestSamples; ++i)
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{
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glm::u64vec2 D = glm::linearRand(glm::u64vec2(Min), glm::u64vec2(Max));
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DMin = glm::min(DMin, D);
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DMax = glm::max(DMax, D);
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if(!glm::all(glm::lessThanEqual(D, glm::u64vec2(Max))))
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++Error;
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if(!glm::all(glm::greaterThanEqual(D, glm::u64vec2(Min))))
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++Error;
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assert(!Error);
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}
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Error += glm::all(glm::equal(DMin, glm::u64vec2(Min))) ? 0 : 1;
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Error += glm::all(glm::equal(DMax, glm::u64vec2(Max))) ? 0 : 1;
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assert(!Error);
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}
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}
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{
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glm::i8vec2 AMin(std::numeric_limits<glm::i8>::max());
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glm::i8vec2 AMax(std::numeric_limits<glm::i8>::min());
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{
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for(std::size_t i = 0; i < TestSamples; ++i)
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{
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glm::i8vec2 A = glm::linearRand(glm::i8vec2(Min), glm::i8vec2(Max));
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AMin = glm::min(AMin, A);
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AMax = glm::max(AMax, A);
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if(!glm::all(glm::lessThanEqual(A, glm::i8vec2(Max))))
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++Error;
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if(!glm::all(glm::greaterThanEqual(A, glm::i8vec2(Min))))
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++Error;
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assert(!Error);
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}
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Error += glm::all(glm::equal(AMin, glm::i8vec2(Min))) ? 0 : 1;
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Error += glm::all(glm::equal(AMax, glm::i8vec2(Max))) ? 0 : 1;
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assert(!Error);
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}
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glm::i16vec2 BMin(std::numeric_limits<glm::i16>::max());
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glm::i16vec2 BMax(std::numeric_limits<glm::i16>::min());
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{
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for(std::size_t i = 0; i < TestSamples; ++i)
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{
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glm::i16vec2 B = glm::linearRand(glm::i16vec2(Min), glm::i16vec2(Max));
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BMin = glm::min(BMin, B);
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BMax = glm::max(BMax, B);
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if(!glm::all(glm::lessThanEqual(B, glm::i16vec2(Max))))
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++Error;
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if(!glm::all(glm::greaterThanEqual(B, glm::i16vec2(Min))))
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++Error;
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assert(!Error);
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}
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Error += glm::all(glm::equal(BMin, glm::i16vec2(Min))) ? 0 : 1;
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Error += glm::all(glm::equal(BMax, glm::i16vec2(Max))) ? 0 : 1;
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assert(!Error);
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}
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glm::i32vec2 CMin(std::numeric_limits<glm::i32>::max());
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glm::i32vec2 CMax(std::numeric_limits<glm::i32>::min());
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{
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for(std::size_t i = 0; i < TestSamples; ++i)
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{
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glm::i32vec2 C = glm::linearRand(glm::i32vec2(Min), glm::i32vec2(Max));
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CMin = glm::min(CMin, C);
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CMax = glm::max(CMax, C);
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if(!glm::all(glm::lessThanEqual(C, glm::i32vec2(Max))))
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++Error;
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if(!glm::all(glm::greaterThanEqual(C, glm::i32vec2(Min))))
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++Error;
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assert(!Error);
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}
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Error += glm::all(glm::equal(CMin, glm::i32vec2(Min))) ? 0 : 1;
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Error += glm::all(glm::equal(CMax, glm::i32vec2(Max))) ? 0 : 1;
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assert(!Error);
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}
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glm::i64vec2 DMin(std::numeric_limits<glm::i64>::max());
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glm::i64vec2 DMax(std::numeric_limits<glm::i64>::min());
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{
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for(std::size_t i = 0; i < TestSamples; ++i)
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{
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glm::i64vec2 D = glm::linearRand(glm::i64vec2(Min), glm::i64vec2(Max));
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DMin = glm::min(DMin, D);
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DMax = glm::max(DMax, D);
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if(!glm::all(glm::lessThanEqual(D, glm::i64vec2(Max))))
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++Error;
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if(!glm::all(glm::greaterThanEqual(D, glm::i64vec2(Min))))
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++Error;
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assert(!Error);
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}
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Error += glm::all(glm::equal(DMin, glm::i64vec2(Min))) ? 0 : 1;
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Error += glm::all(glm::equal(DMax, glm::i64vec2(Max))) ? 0 : 1;
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assert(!Error);
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}
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}
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for(std::size_t i = 0; i < TestSamples; ++i)
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{
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glm::f32vec2 const A(glm::linearRand(glm::f32vec2(static_cast<float>(Min)), glm::f32vec2(static_cast<float>(Max))));
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if(!glm::all(glm::lessThanEqual(A, glm::f32vec2(static_cast<float>(Max)))))
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++Error;
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if(!glm::all(glm::greaterThanEqual(A, glm::f32vec2(static_cast<float>(Min)))))
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++Error;
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glm::f64vec2 const B(glm::linearRand(glm::f64vec2(Min), glm::f64vec2(Max)));
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if(!glm::all(glm::lessThanEqual(B, glm::f64vec2(Max))))
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++Error;
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if(!glm::all(glm::greaterThanEqual(B, glm::f64vec2(Min))))
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++Error;
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assert(!Error);
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}
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{
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float ResultFloat = 0.0f;
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double ResultDouble = 0.0;
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for(std::size_t i = 0; i < TestSamples; ++i)
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{
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ResultFloat += glm::linearRand(-1.0f, 1.0f);
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ResultDouble += glm::linearRand(-1.0, 1.0);
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}
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Error += glm::epsilonEqual(ResultFloat, 0.0f, 0.0001f);
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Error += glm::epsilonEqual(ResultDouble, 0.0, 0.0001);
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assert(!Error);
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}
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return Error;
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}
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int test_circularRand()
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{
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int Error = 0;
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{
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std::size_t Max = TestSamples;
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float ResultFloat = 0.0f;
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double ResultDouble = 0.0;
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double Radius = 2.0;
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for(std::size_t i = 0; i < Max; ++i)
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{
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ResultFloat += glm::length(glm::circularRand(1.0f));
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ResultDouble += glm::length(glm::circularRand(Radius));
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}
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Error += glm::epsilonEqual(ResultFloat, float(Max), 0.01f) ? 0 : 1;
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Error += glm::epsilonEqual(ResultDouble, double(Max) * double(Radius), 0.01) ? 0 : 1;
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assert(!Error);
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}
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return Error;
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}
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int test_sphericalRand()
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{
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int Error = 0;
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{
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std::size_t Max = TestSamples;
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float ResultFloatA = 0.0f;
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float ResultFloatB = 0.0f;
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float ResultFloatC = 0.0f;
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double ResultDoubleA = 0.0;
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double ResultDoubleB = 0.0;
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double ResultDoubleC = 0.0;
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for(std::size_t i = 0; i < Max; ++i)
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{
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ResultFloatA += glm::length(glm::sphericalRand(1.0f));
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ResultDoubleA += glm::length(glm::sphericalRand(1.0));
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ResultFloatB += glm::length(glm::sphericalRand(2.0f));
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ResultDoubleB += glm::length(glm::sphericalRand(2.0));
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ResultFloatC += glm::length(glm::sphericalRand(3.0f));
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ResultDoubleC += glm::length(glm::sphericalRand(3.0));
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}
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Error += glm::epsilonEqual(ResultFloatA, float(Max), 0.01f) ? 0 : 1;
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Error += glm::epsilonEqual(ResultDoubleA, double(Max), 0.0001) ? 0 : 1;
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Error += glm::epsilonEqual(ResultFloatB, float(Max * 2), 0.01f) ? 0 : 1;
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Error += glm::epsilonEqual(ResultDoubleB, double(Max * 2), 0.0001) ? 0 : 1;
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Error += glm::epsilonEqual(ResultFloatC, float(Max * 3), 0.01f) ? 0 : 1;
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Error += glm::epsilonEqual(ResultDoubleC, double(Max * 3), 0.01) ? 0 : 1;
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assert(!Error);
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}
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return Error;
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}
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int test_diskRand()
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{
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int Error = 0;
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{
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float ResultFloat = 0.0f;
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double ResultDouble = 0.0;
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for(std::size_t i = 0; i < TestSamples; ++i)
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{
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ResultFloat += glm::length(glm::diskRand(2.0f));
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ResultDouble += glm::length(glm::diskRand(2.0));
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}
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Error += ResultFloat < float(TestSamples) * 2.f ? 0 : 1;
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Error += ResultDouble < double(TestSamples) * 2.0 ? 0 : 1;
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assert(!Error);
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}
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return Error;
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}
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int test_ballRand()
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{
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int Error = 0;
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{
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float ResultFloat = 0.0f;
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double ResultDouble = 0.0;
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for(std::size_t i = 0; i < TestSamples; ++i)
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{
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ResultFloat += glm::length(glm::ballRand(2.0f));
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ResultDouble += glm::length(glm::ballRand(2.0));
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}
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Error += ResultFloat < float(TestSamples) * 2.f ? 0 : 1;
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Error += ResultDouble < double(TestSamples) * 2.0 ? 0 : 1;
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assert(!Error);
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}
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return Error;
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}
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/*
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#if(GLM_LANG & GLM_LANG_CXX0X_FLAG)
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int test_grid()
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{
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int Error = 0;
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typedef std::array<int, 8> colors;
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typedef std::array<int, 8 * 8> grid;
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grid Grid;
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colors Colors;
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grid GridBest;
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colors ColorsBest;
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while(true)
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{
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for(std::size_t i = 0; i < Grid.size(); ++i)
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Grid[i] = int(glm::linearRand(0.0, 8.0 * 8.0 * 8.0 - 1.0) / 64.0);
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for(std::size_t i = 0; i < Grid.size(); ++i)
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++Colors[Grid[i]];
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bool Exit = true;
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for(std::size_t i = 0; i < Colors.size(); ++i)
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{
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if(Colors[i] == 8)
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continue;
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Exit = false;
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break;
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}
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if(Exit == true)
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break;
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}
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return Error;
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}
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#endif
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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_linearRand();
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Error += test_circularRand();
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Error += test_sphericalRand();
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Error += test_diskRand();
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Error += test_ballRand();
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/*
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#if(GLM_LANG & GLM_LANG_CXX0X_FLAG)
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Error += test_grid();
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#endif
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*/
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return Error;
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}
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