glm/test/gtx/gtx-bit.cpp
2011-01-20 11:40:14 +00:00

135 lines
3.6 KiB
C++

///////////////////////////////////////////////////////////////////////////////////////////////////
// OpenGL Mathematics Copyright (c) 2005 - 2011 G-Truc Creation (www.g-truc.net)
///////////////////////////////////////////////////////////////////////////////////////////////////
// Created : 2010-09-16
// Updated : 2010-09-16
// Licence : This source is under MIT licence
// File : test/gtx/bit.cpp
///////////////////////////////////////////////////////////////////////////////////////////////////
#include <glm/glm.hpp>
#include <glm/gtx/number_precision.hpp>
#include <glm/gtx/bit.hpp>
#include <iostream>
enum result
{
SUCCESS,
FAIL,
ASSERT,
STATIC_ASSERT
};
namespace extractField
{
template <typename genType, typename sizeType>
struct type
{
genType Value;
sizeType BitFirst;
sizeType BitCount;
genType Return;
result Result;
};
typedef type<glm::uint64, glm::uint> typeU64;
typeU64 const Data64[] =
{
{0xffffffffffffffff, 8, 0, 0x0000000000000000, SUCCESS},
{0x0000000000000000, 0,64, 0x0000000000000000, SUCCESS},
{0xffffffffffffffff, 0,64, 0xffffffffffffffff, SUCCESS},
{0x0f0f0f0f0f0f0f0f, 0,64, 0x0f0f0f0f0f0f0f0f, SUCCESS},
{0x0000000000000000, 8, 0, 0x0000000000000000, SUCCESS},
{0x8000000000000000,63, 1, 0x0000000000000001, SUCCESS},
{0x7fffffffffffffff,63, 1, 0x0000000000000000, SUCCESS},
{0x0000000000000300, 8, 8, 0x0000000000000003, SUCCESS},
{0x000000000000ff00, 8, 8, 0x00000000000000ff, SUCCESS},
{0xfffffffffffffff0, 0, 5, 0x0000000000000010, SUCCESS},
{0x00000000000000ff, 1, 3, 0x0000000000000007, SUCCESS},
{0x00000000000000ff, 0, 3, 0x0000000000000007, SUCCESS},
{0x0000000000000000, 0, 2, 0x0000000000000000, SUCCESS},
{0xffffffffffffffff, 0, 8, 0x00000000000000ff, SUCCESS},
{0xffffffff00000000,32,32, 0x00000000ffffffff, SUCCESS},
{0xfffffffffffffff0, 0, 8, 0x0000000000000000, FAIL},
{0xffffffffffffffff,32,32, 0x0000000000000000, FAIL},
//{0xffffffffffffffff,64, 1, 0x0000000000000000, ASSERT}, // Throw an assert
//{0xffffffffffffffff, 0,65, 0x0000000000000000, ASSERT}, // Throw an assert
//{0xffffffffffffffff,33,32, 0x0000000000000000, ASSERT}, // Throw an assert
};
int test()
{
glm::uint32 count = sizeof(Data64) / sizeof(typeU64);
for(glm::uint32 i = 0; i < count; ++i)
{
glm::uint64 Return = glm::extractField(
Data64[i].Value,
Data64[i].BitFirst,
Data64[i].BitCount);
bool Compare = Data64[i].Return == Return;
if(Data64[i].Result == SUCCESS && Compare)
continue;
else if(Data64[i].Result == FAIL && !Compare)
continue;
std::cout << "glm::extractfield test fail on test " << i << std::endl;
return 1;
}
return 0;
}
}//extractField
namespace bitRevert
{
template <typename genType>
struct type
{
genType Value;
genType Return;
result Result;
};
typedef type<glm::uint64> typeU64;
typeU64 const Data64[] =
{
{0xffffffffffffffff, 0xffffffffffffffff, SUCCESS},
{0x0000000000000000, 0x0000000000000000, SUCCESS},
{0xf000000000000000, 0x000000000000000f, SUCCESS},
};
int test()
{
glm::uint32 count = sizeof(Data64) / sizeof(typeU64);
for(glm::uint32 i = 0; i < count; ++i)
{
glm::uint64 Return = glm::bitRevert(
Data64[i].Value);
bool Compare = Data64[i].Return == Return;
if(Data64[i].Result == SUCCESS && Compare)
continue;
else if(Data64[i].Result == FAIL && !Compare)
continue;
std::cout << "glm::extractfield test fail on test " << i << std::endl;
return 1;
}
return 0;
}
}//bitRevert
int main(int argc, void* argv[])
{
::extractField::test();
::bitRevert::test();
}