1 | // |
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2 | // Lol Engine |
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3 | // |
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4 | // Copyright: (c) 2010-2012 Sam Hocevar <sam@hocevar.net> |
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5 | // This program is free software; you can redistribute it and/or |
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6 | // modify it under the terms of the Do What The Fuck You Want To |
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7 | // Public License, Version 2, as published by Sam Hocevar. See |
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8 | // http://sam.zoy.org/projects/COPYING.WTFPL for more details. |
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9 | // |
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10 | |
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11 | #if defined HAVE_CONFIG_H |
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12 | # include "config.h" |
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13 | #endif |
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14 | |
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15 | #include "core.h" |
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16 | #include "lol/unit.h" |
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17 | |
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18 | namespace lol |
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19 | { |
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20 | |
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21 | LOLUNIT_FIXTURE(MatrixTest) |
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22 | { |
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23 | void SetUp() |
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24 | { |
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25 | id2 = mat2(1.0f); |
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26 | tri2 = mat2(vec2(1.0f, 0.0f), |
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27 | vec2(7.0f, 2.0f)); |
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28 | inv2 = mat2(vec2(4.0f, 3.0f), |
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29 | vec2(3.0f, 2.0f)); |
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30 | |
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31 | id3 = mat3(1.0f); |
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32 | tri3 = mat3(vec3(1.0f, 0.0f, 0.0f), |
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33 | vec3(7.0f, 2.0f, 0.0f), |
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34 | vec3(1.0f, 5.0f, 3.0f)); |
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35 | inv3 = mat3(vec3(2.0f, 3.0f, 5.0f), |
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36 | vec3(3.0f, 2.0f, 3.0f), |
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37 | vec3(9.0f, 5.0f, 7.0f)); |
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38 | |
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39 | id4 = mat4(1.0f); |
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40 | tri4 = mat4(vec4(1.0f, 0.0f, 0.0f, 0.0f), |
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41 | vec4(7.0f, 2.0f, 0.0f, 0.0f), |
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42 | vec4(1.0f, 5.0f, 3.0f, 0.0f), |
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43 | vec4(8.0f, 9.0f, 2.0f, 4.0f)); |
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44 | inv4 = mat4(vec4( 1.0f, 1.0f, 2.0f, -1.0f), |
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45 | vec4(-2.0f, -1.0f, -2.0f, 2.0f), |
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46 | vec4( 4.0f, 2.0f, 5.0f, -4.0f), |
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47 | vec4( 5.0f, -3.0f, -7.0f, -6.0f)); |
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48 | } |
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49 | |
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50 | void TearDown() {} |
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51 | |
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52 | LOLUNIT_TEST(Determinant) |
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53 | { |
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54 | float d1, d2; |
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55 | |
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56 | d1 = determinant(tri2); |
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57 | LOLUNIT_ASSERT_EQUAL(d1, 2.0f); |
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58 | d2 = determinant(inv2); |
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59 | LOLUNIT_ASSERT_EQUAL(d2, -1.0f); |
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60 | |
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61 | d1 = determinant(tri3); |
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62 | LOLUNIT_ASSERT_EQUAL(d1, 6.0f); |
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63 | d2 = determinant(inv3); |
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64 | LOLUNIT_ASSERT_EQUAL(d2, 1.0f); |
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65 | |
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66 | d1 = determinant(tri4); |
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67 | LOLUNIT_ASSERT_EQUAL(d1, 24.0f); |
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68 | d2 = determinant(inv4); |
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69 | LOLUNIT_ASSERT_EQUAL(d2, -1.0f); |
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70 | } |
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71 | |
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72 | LOLUNIT_TEST(Multiplication) |
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73 | { |
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74 | mat4 m0 = id4; |
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75 | mat4 m1 = id4; |
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76 | mat4 m2 = m0 * m1; |
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77 | |
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78 | LOLUNIT_ASSERT_EQUAL(m2[0][0], 1.0f); |
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79 | LOLUNIT_ASSERT_EQUAL(m2[1][0], 0.0f); |
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80 | LOLUNIT_ASSERT_EQUAL(m2[2][0], 0.0f); |
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81 | LOLUNIT_ASSERT_EQUAL(m2[3][0], 0.0f); |
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82 | |
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83 | LOLUNIT_ASSERT_EQUAL(m2[0][1], 0.0f); |
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84 | LOLUNIT_ASSERT_EQUAL(m2[1][1], 1.0f); |
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85 | LOLUNIT_ASSERT_EQUAL(m2[2][1], 0.0f); |
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86 | LOLUNIT_ASSERT_EQUAL(m2[3][1], 0.0f); |
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87 | |
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88 | LOLUNIT_ASSERT_EQUAL(m2[0][2], 0.0f); |
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89 | LOLUNIT_ASSERT_EQUAL(m2[1][2], 0.0f); |
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90 | LOLUNIT_ASSERT_EQUAL(m2[2][2], 1.0f); |
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91 | LOLUNIT_ASSERT_EQUAL(m2[3][2], 0.0f); |
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92 | |
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93 | LOLUNIT_ASSERT_EQUAL(m2[0][3], 0.0f); |
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94 | LOLUNIT_ASSERT_EQUAL(m2[1][3], 0.0f); |
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95 | LOLUNIT_ASSERT_EQUAL(m2[2][3], 0.0f); |
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96 | LOLUNIT_ASSERT_EQUAL(m2[3][3], 1.0f); |
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97 | } |
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98 | |
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99 | LOLUNIT_TEST(Inverse2x2) |
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100 | { |
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101 | mat2 m0 = inv2; |
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102 | mat2 m1 = inverse(m0); |
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103 | |
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104 | mat2 m2 = m0 * m1; |
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105 | |
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106 | LOLUNIT_ASSERT_EQUAL(m2[0][0], 1.0f); |
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107 | LOLUNIT_ASSERT_EQUAL(m2[1][0], 0.0f); |
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108 | |
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109 | LOLUNIT_ASSERT_EQUAL(m2[0][1], 0.0f); |
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110 | LOLUNIT_ASSERT_EQUAL(m2[1][1], 1.0f); |
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111 | } |
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112 | |
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113 | LOLUNIT_TEST(Inverse3x3) |
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114 | { |
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115 | mat3 m0 = inv3; |
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116 | mat3 m1 = inverse(m0); |
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117 | |
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118 | mat3 m2 = m0 * m1; |
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119 | |
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120 | LOLUNIT_ASSERT_EQUAL(m2[0][0], 1.0f); |
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121 | LOLUNIT_ASSERT_EQUAL(m2[1][0], 0.0f); |
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122 | LOLUNIT_ASSERT_EQUAL(m2[2][0], 0.0f); |
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123 | |
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124 | LOLUNIT_ASSERT_EQUAL(m2[0][1], 0.0f); |
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125 | LOLUNIT_ASSERT_EQUAL(m2[1][1], 1.0f); |
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126 | LOLUNIT_ASSERT_EQUAL(m2[2][1], 0.0f); |
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127 | |
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128 | LOLUNIT_ASSERT_EQUAL(m2[0][2], 0.0f); |
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129 | LOLUNIT_ASSERT_EQUAL(m2[1][2], 0.0f); |
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130 | LOLUNIT_ASSERT_EQUAL(m2[2][2], 1.0f); |
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131 | } |
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132 | |
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133 | LOLUNIT_TEST(Inverse4x4) |
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134 | { |
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135 | mat4 m0 = inv4; |
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136 | mat4 m1 = inverse(m0); |
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137 | |
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138 | mat4 m2 = m0 * m1; |
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139 | |
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140 | LOLUNIT_ASSERT_EQUAL(m2[0][0], 1.0f); |
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141 | LOLUNIT_ASSERT_EQUAL(m2[1][0], 0.0f); |
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142 | LOLUNIT_ASSERT_EQUAL(m2[2][0], 0.0f); |
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143 | LOLUNIT_ASSERT_EQUAL(m2[3][0], 0.0f); |
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144 | |
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145 | LOLUNIT_ASSERT_EQUAL(m2[0][1], 0.0f); |
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146 | LOLUNIT_ASSERT_EQUAL(m2[1][1], 1.0f); |
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147 | LOLUNIT_ASSERT_EQUAL(m2[2][1], 0.0f); |
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148 | LOLUNIT_ASSERT_EQUAL(m2[3][1], 0.0f); |
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149 | |
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150 | LOLUNIT_ASSERT_EQUAL(m2[0][2], 0.0f); |
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151 | LOLUNIT_ASSERT_EQUAL(m2[1][2], 0.0f); |
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152 | LOLUNIT_ASSERT_EQUAL(m2[2][2], 1.0f); |
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153 | LOLUNIT_ASSERT_EQUAL(m2[3][2], 0.0f); |
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154 | |
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155 | LOLUNIT_ASSERT_EQUAL(m2[0][3], 0.0f); |
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156 | LOLUNIT_ASSERT_EQUAL(m2[1][3], 0.0f); |
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157 | LOLUNIT_ASSERT_EQUAL(m2[2][3], 0.0f); |
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158 | LOLUNIT_ASSERT_EQUAL(m2[3][3], 1.0f); |
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159 | } |
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160 | |
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161 | mat2 tri2, id2, inv2; |
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162 | mat3 tri3, id3, inv3; |
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163 | mat4 tri4, id4, inv4; |
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164 | }; |
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165 | |
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166 | } /* namespace lol */ |
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167 | |
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