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