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1 /* ============================================================================
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2 * Freetype GL - A C OpenGL Freetype engine
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3 * Platform: Any
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4 * WWW: http://code.google.com/p/freetype-gl/
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5 * ----------------------------------------------------------------------------
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6 * Copyright 2011,2012,2013 Nicolas P. Rougier. All rights reserved.
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7 *
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8 * Redistribution and use in source and binary forms, with or without
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9 * modification, are permitted provided that the following conditions are met:
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10 *
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11 * 1. Redistributions of source code must retain the above copyright notice,
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12 * this list of conditions and the following disclaimer.
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13 *
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14 * 2. Redistributions in binary form must reproduce the above copyright
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15 * notice, this list of conditions and the following disclaimer in the
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16 * documentation and/or other materials provided with the distribution.
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17 *
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18 * THIS SOFTWARE IS PROVIDED BY NICOLAS P. ROUGIER ''AS IS'' AND ANY EXPRESS OR
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19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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20 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
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21 * EVENT SHALL NICOLAS P. ROUGIER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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22 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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23 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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24 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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25 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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28 *
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29 * The views and conclusions contained in the software and documentation are
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30 * those of the authors and should not be interpreted as representing official
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31 * policies, either expressed or implied, of Nicolas P. Rougier.
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32 * ============================================================================
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33 */
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34 #ifndef __VEC234_H__
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35 #define __VEC234_H__
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36
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37 #ifdef __cplusplus
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38 extern "C" {
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39 #endif
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40
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41
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42 /**
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43 * Tuple of 4 ints.
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44 *
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45 * Each field can be addressed using several aliases:
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46 * - First component: <b>x</b>, <b>r</b>, <b>red</b> or <b>vstart</b>
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47 * - Second component: <b>y</b>, <b>g</b>, <b>green</b> or <b>vcount</b>
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48 * - Third component: <b>z</b>, <b>b</b>, <b>blue</b>, <b>width</b> or <b>istart</b>
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49 * - Fourth component: <b>w</b>, <b>a</b>, <b>alpha</b>, <b>height</b> or <b>icount</b>
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50 *
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51 */
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52 typedef union
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53 {
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54 int data[4]; /**< All compoments at once */
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55 struct {
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56 int x; /**< Alias for first component */
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57 int y; /**< Alias for second component */
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58 int z; /**< Alias for third component */
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59 int w; /**< Alias for fourht component */
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60 };
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61 struct {
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62 int x_; /**< Alias for first component */
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63 int y_; /**< Alias for second component */
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64 int width; /**< Alias for third component */
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65 int height; /**< Alias for fourth component */
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66 };
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67 struct {
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68 int r; /**< Alias for first component */
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69 int g; /**< Alias for second component */
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70 int b; /**< Alias for third component */
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71 int a; /**< Alias for fourth component */
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72 };
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73 struct {
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74 int red; /**< Alias for first component */
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75 int green; /**< Alias for second component */
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76 int blue; /**< Alias for third component */
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77 int alpha; /**< Alias for fourth component */
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78 };
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79 struct {
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80 int vstart; /**< Alias for first component */
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81 int vcount; /**< Alias for second component */
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82 int istart; /**< Alias for third component */
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83 int icount; /**< Alias for fourth component */
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84 };
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85 } ivec4;
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86
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87
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88 /**
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89 * Tuple of 3 ints.
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90 *
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91 * Each field can be addressed using several aliases:
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92 * - First component: <b>x</b>, <b>r</b> or <b>red</b>
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93 * - Second component: <b>y</b>, <b>g</b> or <b>green</b>
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94 * - Third component: <b>z</b>, <b>b</b> or <b>blue</b>
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95 *
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96 */
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97 typedef union
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98 {
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99 int data[3]; /**< All compoments at once */
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100 struct {
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101 int x; /**< Alias for first component */
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102 int y; /**< Alias for second component */
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103 int z; /**< Alias for third component */
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104 };
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105 struct {
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106 int r; /**< Alias for first component */
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107 int g; /**< Alias for second component */
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108 int b; /**< Alias for third component */
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109 };
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110 struct {
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111 int red; /**< Alias for first component */
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112 int green; /**< Alias for second component */
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113 int blue; /**< Alias for third component */
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114 };
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115 } ivec3;
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116
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117
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118 /**
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119 * Tuple of 2 ints.
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120 *
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121 * Each field can be addressed using several aliases:
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122 * - First component: <b>x</b>, <b>s</b> or <b>start</b>
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123 * - Second component: <b>y</b>, <b>t</b> or <b>end</b>
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124 *
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125 */
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126 typedef union
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127 {
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128 int data[2]; /**< All compoments at once */
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129 struct {
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130 int x; /**< Alias for first component */
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131 int y; /**< Alias for second component */
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132 };
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133 struct {
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134 int s; /**< Alias for first component */
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135 int t; /**< Alias for second component */
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136 };
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137 struct {
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138 int start; /**< Alias for first component */
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139 int end; /**< Alias for second component */
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140 };
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141 } ivec2;
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142
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143
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144 /**
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145 * Tuple of 4 floats.
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146 *
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147 * Each field can be addressed using several aliases:
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148 * - First component: <b>x</b>, <b>r</b> or <b>red</b>
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149 * - Second component: <b>y</b>, <b>g</b> or <b>green</b>
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150 * - Third component: <b>z</b>, <b>b</b>, <b>blue</b> or <b>width</b>
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151 * - Fourth component: <b>w</b>, <b>a</b>, <b>alpha</b> or <b>height</b>
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152 */
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153 typedef union
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154 {
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155 float data[4]; /**< All compoments at once */
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156 struct {
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157 float x; /**< Alias for first component */
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158 float y; /**< Alias fo second component */
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159 float z; /**< Alias fo third component */
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160 float w; /**< Alias fo fourth component */
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161 };
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162 struct {
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163 float x_; /**< Alias for first component */
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164 float y_; /**< Alias fo second component */
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165 float width; /**< Alias fo third component */
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166 float height; /**< Alias fo fourth component */
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167 };
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168 struct {
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169 float r; /**< Alias for first component */
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170 float g; /**< Alias fo second component */
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171 float b; /**< Alias fo third component */
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172 float a; /**< Alias fo fourth component */
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173 };
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174 struct {
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175 float red; /**< Alias for first component */
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176 float green; /**< Alias fo second component */
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177 float blue; /**< Alias fo third component */
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178 float alpha; /**< Alias fo fourth component */
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179 };
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180 } vec4;
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181
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182
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183 /**
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184 * Tuple of 3 floats
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185 *
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186 * Each field can be addressed using several aliases:
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187 * - First component: <b>x</b>, <b>r</b> or <b>red</b>
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188 * - Second component: <b>y</b>, <b>g</b> or <b>green</b>
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189 * - Third component: <b>z</b>, <b>b</b> or <b>blue</b>
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190 */
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191 typedef union
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192 {
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193 float data[3]; /**< All compoments at once */
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194 struct {
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195 float x; /**< Alias for first component */
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196 float y; /**< Alias fo second component */
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197 float z; /**< Alias fo third component */
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198 };
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199 struct {
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200 float r; /**< Alias for first component */
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201 float g; /**< Alias fo second component */
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202 float b; /**< Alias fo third component */
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203 };
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204 struct {
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205 float red; /**< Alias for first component */
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206 float green; /**< Alias fo second component */
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207 float blue; /**< Alias fo third component */
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208 };
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209 } vec3;
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210
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211
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212 /**
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213 * Tuple of 2 floats
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214 *
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215 * Each field can be addressed using several aliases:
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216 * - First component: <b>x</b> or <b>s</b>
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217 * - Second component: <b>y</b> or <b>t</b>
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218 */
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219 typedef union
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220 {
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221 float data[2]; /**< All components at once */
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222 struct {
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223 float x; /**< Alias for first component */
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224 float y; /**< Alias for second component */
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225 };
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226 struct {
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227 float s; /**< Alias for first component */
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228 float t; /**< Alias for second component */
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229 };
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230 } vec2;
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231
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232
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233 #ifdef __cplusplus
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234 }
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235 #endif
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236
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237 #endif /* __VEC234_H__ */
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