152 lines
3.5 KiB
C++
152 lines
3.5 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_packing.cpp
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///////////////////////////////////////////////////////////////////////////////////////////////////
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#include <glm/glm.hpp>
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#include <glm/gtc/half_float.hpp>
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#include <glm/gtc/type_precision.hpp>
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#include <glm/gtx/epsilon.hpp>
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#include <vector>
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int test_packUnorm2x16()
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{
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int Error = 0;
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std::vector<glm::hvec2> A;
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A.push_back(glm::hvec2(glm::half( 1.0f), glm::half( 0.0f)));
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A.push_back(glm::hvec2(glm::half( 0.5f), glm::half( 0.7f)));
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A.push_back(glm::hvec2(glm::half( 0.1f), glm::half( 0.2f)));
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for(std::size_t i = 0; i < A.size(); ++i)
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{
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glm::vec2 B(A[i]);
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glm::uint32 C = glm::packUnorm2x16(B);
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glm::vec2 D = glm::unpackUnorm2x16(C);
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Error += glm::all(glm::equalEpsilon(B, D, 0.0001f)) ? 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_packSnorm2x16()
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{
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int Error = 0;
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std::vector<glm::hvec2> A;
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A.push_back(glm::hvec2(glm::half( 1.0f), glm::half( 0.0f)));
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A.push_back(glm::hvec2(glm::half(-0.5f), glm::half(-0.7f)));
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A.push_back(glm::hvec2(glm::half(-0.1f), glm::half( 0.1f)));
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for(std::size_t i = 0; i < A.size(); ++i)
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{
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glm::vec2 B(A[i]);
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glm::uint32 C = glm::packSnorm2x16(B);
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glm::vec2 D = glm::unpackSnorm2x16(C);
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Error += glm::all(glm::equalEpsilon(B, D, 0.0001f)) ? 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_packUnorm4x8()
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{
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int Error = 0;
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std::vector<glm::vec4> A;
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A.push_back(glm::vec4(1.0f, 0.7f, 0.3f, 0.0f));
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A.push_back(glm::vec4(0.5f, 0.1f, 0.2f, 0.3f));
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for(std::size_t i = 0; i < A.size(); ++i)
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{
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glm::vec4 B(A[i]);
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glm::uint32 C = glm::packUnorm4x8(B);
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glm::vec4 D = glm::unpackUnorm4x8(C);
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Error += glm::all(glm::equalEpsilon(B, D, 0.0001f)) ? 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_packSnorm4x8()
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{
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int Error = 0;
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std::vector<glm::vec4> A;
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A.push_back(glm::vec4( 1.0f, 0.0f,-0.5f,-1.0f));
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A.push_back(glm::vec4(-0.7f,-0.1f, 0.1f, 0.7f));
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for(std::size_t i = 0; i < A.size(); ++i)
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{
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glm::vec4 B(A[i]);
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glm::uint32 C = glm::packSnorm4x8(B);
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glm::vec4 D = glm::unpackSnorm4x8(C);
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Error += glm::all(glm::equalEpsilon(B, D, 0.0001f)) ? 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_packHalf2x16()
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{
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int Error = 0;
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std::vector<glm::hvec2> A;
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A.push_back(glm::hvec2(glm::half( 1.0f), glm::half( 2.0f)));
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A.push_back(glm::hvec2(glm::half(-1.0f), glm::half(-2.0f)));
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A.push_back(glm::hvec2(glm::half(-1.1f), glm::half( 1.1f)));
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for(std::size_t i = 0; i < A.size(); ++i)
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{
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glm::vec2 B(A[i]);
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glm::uint C = glm::packHalf2x16(B);
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glm::vec2 D = glm::unpackHalf2x16(C);
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Error += B == D ? 0 : 1;
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}
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return Error;
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}
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int test_packDouble2x32()
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{
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int Error = 0;
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std::vector<glm::u32vec2> A;
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A.push_back(glm::u32vec2( 1, 2));
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A.push_back(glm::u32vec2(-1,-2));
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A.push_back(glm::u32vec2(-1000, 1100));
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for(std::size_t i = 0; i < A.size(); ++i)
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{
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glm::u32vec2 B(A[i]);
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double C = glm::packDouble2x32(B);
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glm::u32vec2 D = glm::unpackDouble2x32(C);
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Error += B == D ? 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_packSnorm4x8();
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Error += test_packUnorm4x8();
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Error += test_packSnorm2x16();
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Error += test_packUnorm2x16();
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Error += test_packHalf2x16();
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Error += test_packDouble2x32();
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return Error;
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}
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