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268 lines
6.5 KiB
C++
268 lines
6.5 KiB
C++
///////////////////////////////////////////////////////////////////////////////////
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/// OpenGL Mathematics (glm.g-truc.net)
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///
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/// Copyright (c) 2005 - 2014 G-Truc Creation (www.g-truc.net)
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/// Permission is hereby granted, free of charge, to any person obtaining a copy
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/// of this software and associated documentation files (the "Software"), to deal
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/// in the Software without restriction, including without limitation the rights
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/// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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/// copies of the Software, and to permit persons to whom the Software is
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/// furnished to do so, subject to the following conditions:
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///
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/// The above copyright notice and this permission notice shall be included in
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/// all copies or substantial portions of the Software.
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///
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/// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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/// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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/// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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/// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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/// THE SOFTWARE.
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///
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/// @ref test
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/// @file test/gtc/packing.cpp
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/// @date 2013-08-09 / 2013-08-09
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/// @author Christophe Riccio
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///////////////////////////////////////////////////////////////////////////////////
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#define GLM_FORCE_RADIANS
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#include <glm/gtc/packing.hpp>
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#include <cstdio>
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#include <vector>
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void print_bits(float const & s)
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{
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union
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{
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float f;
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unsigned int i;
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} uif;
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uif.f = s;
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printf("f32: ");
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for(std::size_t j = sizeof(s) * 8; j > 0; --j)
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{
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if(j == 23 || j == 31)
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printf(" ");
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printf("%d", (uif.i & (1 << (j - 1))) ? 1 : 0);
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}
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}
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void print_10bits(glm::uint const & s)
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{
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printf("10b: ");
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for(std::size_t j = 10; j > 0; --j)
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{
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if(j == 5)
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printf(" ");
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printf("%d", (s & (1 << (j - 1))) ? 1 : 0);
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}
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}
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void print_11bits(glm::uint const & s)
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{
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printf("11b: ");
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for(std::size_t j = 11; j > 0; --j)
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{
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if(j == 6)
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printf(" ");
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printf("%d", (s & (1 << (j - 1))) ? 1 : 0);
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}
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}
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void print_value(float const & s)
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{
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printf("%2.5f, ", s);
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print_bits(s);
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printf(", ");
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// print_11bits(detail::floatTo11bit(s));
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// printf(", ");
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// print_10bits(detail::floatTo10bit(s));
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printf("\n");
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}
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int test_Half1x16()
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{
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int Error = 0;
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std::vector<float> Tests;
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Tests.push_back(0.0f);
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Tests.push_back(1.0f);
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Tests.push_back(-1.0f);
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Tests.push_back(2.0f);
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Tests.push_back(-2.0f);
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Tests.push_back(1.9f);
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for(std::size_t i = 0; i < Tests.size(); ++i)
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{
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glm::uint32 p0 = glm::packHalf1x16(Tests[i]);
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float v0 = glm::unpackHalf1x16(p0);
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glm::uint32 p1 = glm::packHalf1x16(v0);
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float v1 = glm::unpackHalf1x16(p0);
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Error += (v0 == v1) ? 0 : 1;
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}
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return Error;
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}
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int test_Half4x16()
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{
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int Error = 0;
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std::vector<glm::vec4> Tests;
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Tests.push_back(glm::vec4(1.0f));
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Tests.push_back(glm::vec4(0.0f));
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Tests.push_back(glm::vec4(2.0f));
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Tests.push_back(glm::vec4(0.1f));
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Tests.push_back(glm::vec4(0.5f));
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Tests.push_back(glm::vec4(-0.9f));
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for(std::size_t i = 0; i < Tests.size(); ++i)
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{
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glm::uint64 p0 = glm::packHalf4x16(Tests[i]);
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glm::vec4 v0 = glm::unpackHalf4x16(p0);
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glm::uint64 p1 = glm::packHalf4x16(v0);
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glm::vec4 v1 = glm::unpackHalf4x16(p0);
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Error += glm::all(glm::equal(v0, v1)) ? 0 : 1;
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}
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return Error;
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}
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int test_I3x10_1x2()
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{
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int Error = 0;
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std::vector<glm::ivec4> Tests;
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Tests.push_back(glm::ivec4(0));
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Tests.push_back(glm::ivec4(1));
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Tests.push_back(glm::ivec4(-1));
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Tests.push_back(glm::ivec4(2));
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Tests.push_back(glm::ivec4(-2));
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Tests.push_back(glm::ivec4(3));
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for(std::size_t i = 0; i < Tests.size(); ++i)
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{
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glm::uint32 p0 = glm::packI3x10_1x2(Tests[i]);
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glm::ivec4 v0 = glm::unpackI3x10_1x2(p0);
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glm::uint32 p1 = glm::packI3x10_1x2(v0);
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glm::ivec4 v1 = glm::unpackI3x10_1x2(p0);
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Error += glm::all(glm::equal(v0, v1)) ? 0 : 1;
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}
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return Error;
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}
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int test_U3x10_1x2()
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{
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int Error = 0;
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std::vector<glm::uvec4> Tests;
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Tests.push_back(glm::uvec4(0));
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Tests.push_back(glm::uvec4(1));
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Tests.push_back(glm::uvec4(2));
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Tests.push_back(glm::uvec4(3));
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Tests.push_back(glm::uvec4(4));
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Tests.push_back(glm::uvec4(5));
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for(std::size_t i = 0; i < Tests.size(); ++i)
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{
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glm::uint32 p0 = glm::packU3x10_1x2(Tests[i]);
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glm::uvec4 v0 = glm::unpackU3x10_1x2(p0);
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glm::uint32 p1 = glm::packU3x10_1x2(v0);
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glm::uvec4 v1 = glm::unpackU3x10_1x2(p0);
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Error += glm::all(glm::equal(v0, v1)) ? 0 : 1;
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}
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return Error;
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}
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int test_Snorm3x10_1x2()
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{
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int Error = 0;
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std::vector<glm::vec4> Tests;
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Tests.push_back(glm::vec4(1.0f));
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Tests.push_back(glm::vec4(0.0f));
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Tests.push_back(glm::vec4(2.0f));
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Tests.push_back(glm::vec4(0.1f));
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Tests.push_back(glm::vec4(0.5f));
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Tests.push_back(glm::vec4(0.9f));
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for(std::size_t i = 0; i < Tests.size(); ++i)
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{
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glm::uint32 p0 = glm::packSnorm3x10_1x2(Tests[i]);
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glm::vec4 v0 = glm::unpackSnorm3x10_1x2(p0);
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glm::uint32 p1 = glm::packSnorm3x10_1x2(v0);
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glm::vec4 v1 = glm::unpackSnorm3x10_1x2(p0);
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Error += glm::all(glm::equal(v0, v1)) ? 0 : 1;
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}
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return Error;
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}
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int test_Unorm3x10_1x2()
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{
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int Error = 0;
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std::vector<glm::vec4> Tests;
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Tests.push_back(glm::vec4(1.0f));
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Tests.push_back(glm::vec4(0.0f));
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Tests.push_back(glm::vec4(2.0f));
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Tests.push_back(glm::vec4(0.1f));
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Tests.push_back(glm::vec4(0.5f));
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Tests.push_back(glm::vec4(0.9f));
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for(std::size_t i = 0; i < Tests.size(); ++i)
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{
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glm::uint32 p0 = glm::packSnorm3x10_1x2(Tests[i]);
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glm::vec4 v0 = glm::unpackSnorm3x10_1x2(p0);
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glm::uint32 p1 = glm::packSnorm3x10_1x2(v0);
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glm::vec4 v1 = glm::unpackSnorm3x10_1x2(p0);
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Error += glm::all(glm::equal(v0, v1)) ? 0 : 1;
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}
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return Error;
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}
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int test_F2x11_1x10()
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{
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int Error = 0;
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std::vector<glm::vec3> Tests;
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Tests.push_back(glm::vec3(1.0f));
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Tests.push_back(glm::vec3(0.0f));
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Tests.push_back(glm::vec3(2.0f));
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Tests.push_back(glm::vec3(0.1f));
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Tests.push_back(glm::vec3(0.5f));
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Tests.push_back(glm::vec3(0.9f));
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for(std::size_t i = 0; i < Tests.size(); ++i)
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{
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glm::uint32 p0 = glm::packF2x11_1x10(Tests[i]);
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glm::vec3 v0 = glm::unpackF2x11_1x10(p0);
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glm::uint32 p1 = glm::packF2x11_1x10(v0);
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glm::vec3 v1 = glm::unpackF2x11_1x10(p0);
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Error += glm::all(glm::equal(v0, v1)) ? 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_F2x11_1x10();
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Error += test_Snorm3x10_1x2();
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Error += test_Unorm3x10_1x2();
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Error += test_I3x10_1x2();
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Error += test_U3x10_1x2();
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Error += test_Half1x16();
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Error += test_U3x10_1x2();
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return Error;
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}
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