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  40.    <div id="projectbrief">A multi core friendly Game Physics Engine</div>
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  108.   <div class="headertitle"><div class="title">HalfFloat.h</div></div>
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    110. 

  110. <div class="contents">
    111. 

  111. <a href="_half_float_8h.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno">    1</span><span class="comment">// Jolt Physics Library (https://github.com/jrouwe/JoltPhysics)</span></div>
    112. 

  112. <div class="line"><a id="l00002" name="l00002"></a><span class="lineno">    2</span><span class="comment">// SPDX-FileCopyrightText: 2021 Jorrit Rouwe</span></div>
    113. 

  113. <div class="line"><a id="l00003" name="l00003"></a><span class="lineno">    3</span><span class="comment">// SPDX-License-Identifier: MIT</span></div>
    114. 

  114. <div class="line"><a id="l00004" name="l00004"></a><span class="lineno">    4</span> </div>
    115. 

  115. <div class="line"><a id="l00005" name="l00005"></a><span class="lineno">    5</span><span class="preprocessor">#pragma once</span></div>
    116. 

  116. <div class="line"><a id="l00006" name="l00006"></a><span class="lineno">    6</span> </div>
    117. 

  117. <div class="line"><a id="l00007" name="l00007"></a><span class="lineno">    7</span><span class="preprocessor">#include &lt;<a class="code" href="_vec4_8h.html">Jolt/Math/Vec4.h</a>&gt;</span></div>
    118. 

  118. <div class="line"><a id="l00008" name="l00008"></a><span class="lineno">    8</span><span class="preprocessor">#include &lt;<a class="code" href="_f_p_exception_8h.html">Jolt/Core/FPException.h</a>&gt;</span></div>
    119. 

  119. <div class="line"><a id="l00009" name="l00009"></a><span class="lineno">    9</span> </div>
    120. 

  120. <div class="line"><a id="l00010" name="l00010"></a><span class="lineno">   10</span><a class="code hl_define" href="_core_8h.html#ad14098b68b8c44ea6112601031268405">JPH_NAMESPACE_BEGIN</a></div>
    121. 

  121. <div class="line"><a id="l00011" name="l00011"></a><span class="lineno">   11</span> </div>
    122. 

  122. <div class="line"><a id="l00012" name="l00012"></a><span class="lineno"><a class="line" href="_half_float_8h.html#ad1bfc12994d4af290926964a4eaee88d">   12</a></span><span class="keyword">using </span><a class="code hl_typedef" href="_half_float_8h.html#ad1bfc12994d4af290926964a4eaee88d">HalfFloat</a> = <a class="code hl_typedef" href="_core_8h.html#aea9840dd402bd5d5201bef4633398cb3">uint16</a>;</div>
    123. 

  123. <div class="line"><a id="l00013" name="l00013"></a><span class="lineno">   13</span> </div>
    124. 

  124. <div class="line"><a id="l00014" name="l00014"></a><span class="lineno">   14</span><span class="comment">// Define half float constant values</span></div>
    125. 

  125. <div class="line"><a id="l00015" name="l00015"></a><span class="lineno">   15</span><span class="keyword">static</span> <span class="keyword">constexpr</span> <a class="code hl_typedef" href="_half_float_8h.html#ad1bfc12994d4af290926964a4eaee88d">HalfFloat</a> HALF_FLT_MAX             = 0x7bff;</div>
    126. 

  126. <div class="line"><a id="l00016" name="l00016"></a><span class="lineno">   16</span><span class="keyword">static</span> <span class="keyword">constexpr</span> <a class="code hl_typedef" href="_half_float_8h.html#ad1bfc12994d4af290926964a4eaee88d">HalfFloat</a> HALF_FLT_MAX_NEGATIVE    = 0xfbff;</div>
    127. 

  127. <div class="line"><a id="l00017" name="l00017"></a><span class="lineno">   17</span><span class="keyword">static</span> <span class="keyword">constexpr</span> <a class="code hl_typedef" href="_half_float_8h.html#ad1bfc12994d4af290926964a4eaee88d">HalfFloat</a> HALF_FLT_INF             = 0x7c00;</div>
    128. 

  128. <div class="line"><a id="l00018" name="l00018"></a><span class="lineno">   18</span><span class="keyword">static</span> <span class="keyword">constexpr</span> <a class="code hl_typedef" href="_half_float_8h.html#ad1bfc12994d4af290926964a4eaee88d">HalfFloat</a> HALF_FLT_INF_NEGATIVE    = 0xfc00;</div>
    129. 

  129. <div class="line"><a id="l00019" name="l00019"></a><span class="lineno">   19</span><span class="keyword">static</span> <span class="keyword">constexpr</span> <a class="code hl_typedef" href="_half_float_8h.html#ad1bfc12994d4af290926964a4eaee88d">HalfFloat</a> HALF_FLT_NANQ            = 0x7e00;</div>
    130. 

  130. <div class="line"><a id="l00020" name="l00020"></a><span class="lineno">   20</span><span class="keyword">static</span> <span class="keyword">constexpr</span> <a class="code hl_typedef" href="_half_float_8h.html#ad1bfc12994d4af290926964a4eaee88d">HalfFloat</a> HALF_FLT_NANQ_NEGATIVE   = 0xfe00;</div>
    131. 

  131. <div class="line"><a id="l00021" name="l00021"></a><span class="lineno">   21</span> </div>
    132. 

  132. <div class="foldopen" id="foldopen00022" data-start="{" data-end="}">
    133. 

  133. <div class="line"><a id="l00022" name="l00022"></a><span class="lineno"><a class="line" href="namespace_half_float_conversion.html">   22</a></span><span class="keyword">namespace </span><a class="code hl_namespace" href="namespace_half_float_conversion.html">HalfFloatConversion</a> {</div>
    134. 

  134. <div class="line"><a id="l00023" name="l00023"></a><span class="lineno">   23</span> </div>
    135. 

  135. <div class="line"><a id="l00024" name="l00024"></a><span class="lineno">   24</span><span class="comment">// Layout of a float</span></div>
    136. 

  136. <div class="line"><a id="l00025" name="l00025"></a><span class="lineno">   25</span><span class="keyword">static</span> <span class="keyword">constexpr</span> <span class="keywordtype">int</span> FLOAT_SIGN_POS = 31;</div>
    137. 

  137. <div class="line"><a id="l00026" name="l00026"></a><span class="lineno">   26</span><span class="keyword">static</span> <span class="keyword">constexpr</span> <span class="keywordtype">int</span> FLOAT_EXPONENT_POS = 23;</div>
    138. 

  138. <div class="line"><a id="l00027" name="l00027"></a><span class="lineno">   27</span><span class="keyword">static</span> <span class="keyword">constexpr</span> <span class="keywordtype">int</span> FLOAT_EXPONENT_BITS = 8;</div>
    139. 

  139. <div class="line"><a id="l00028" name="l00028"></a><span class="lineno">   28</span><span class="keyword">static</span> <span class="keyword">constexpr</span> <span class="keywordtype">int</span> FLOAT_EXPONENT_MASK = (1 &lt;&lt; FLOAT_EXPONENT_BITS) - 1;</div>
    140. 

  140. <div class="line"><a id="l00029" name="l00029"></a><span class="lineno">   29</span><span class="keyword">static</span> <span class="keyword">constexpr</span> <span class="keywordtype">int</span> FLOAT_EXPONENT_BIAS = 127;</div>
    141. 

  141. <div class="line"><a id="l00030" name="l00030"></a><span class="lineno">   30</span><span class="keyword">static</span> <span class="keyword">constexpr</span> <span class="keywordtype">int</span> FLOAT_MANTISSA_BITS = 23;</div>
    142. 

  142. <div class="line"><a id="l00031" name="l00031"></a><span class="lineno">   31</span><span class="keyword">static</span> <span class="keyword">constexpr</span> <span class="keywordtype">int</span> FLOAT_MANTISSA_MASK = (1 &lt;&lt; FLOAT_MANTISSA_BITS) - 1;</div>
    143. 

  143. <div class="line"><a id="l00032" name="l00032"></a><span class="lineno">   32</span><span class="keyword">static</span> <span class="keyword">constexpr</span> <span class="keywordtype">int</span> FLOAT_EXPONENT_AND_MANTISSA_MASK = FLOAT_MANTISSA_MASK + (FLOAT_EXPONENT_MASK &lt;&lt; FLOAT_EXPONENT_POS);</div>
    144. 

  144. <div class="line"><a id="l00033" name="l00033"></a><span class="lineno">   33</span> </div>
    145. 

  145. <div class="line"><a id="l00034" name="l00034"></a><span class="lineno">   34</span><span class="comment">// Layout of half float</span></div>
    146. 

  146. <div class="line"><a id="l00035" name="l00035"></a><span class="lineno">   35</span><span class="keyword">static</span> <span class="keyword">constexpr</span> <span class="keywordtype">int</span> HALF_FLT_SIGN_POS = 15;</div>
    147. 

  147. <div class="line"><a id="l00036" name="l00036"></a><span class="lineno">   36</span><span class="keyword">static</span> <span class="keyword">constexpr</span> <span class="keywordtype">int</span> HALF_FLT_EXPONENT_POS = 10;</div>
    148. 

  148. <div class="line"><a id="l00037" name="l00037"></a><span class="lineno">   37</span><span class="keyword">static</span> <span class="keyword">constexpr</span> <span class="keywordtype">int</span> HALF_FLT_EXPONENT_BITS = 5;</div>
    149. 

  149. <div class="line"><a id="l00038" name="l00038"></a><span class="lineno">   38</span><span class="keyword">static</span> <span class="keyword">constexpr</span> <span class="keywordtype">int</span> HALF_FLT_EXPONENT_MASK = (1 &lt;&lt; HALF_FLT_EXPONENT_BITS) - 1;</div>
    150. 

  150. <div class="line"><a id="l00039" name="l00039"></a><span class="lineno">   39</span><span class="keyword">static</span> <span class="keyword">constexpr</span> <span class="keywordtype">int</span> HALF_FLT_EXPONENT_BIAS = 15;</div>
    151. 

  151. <div class="line"><a id="l00040" name="l00040"></a><span class="lineno">   40</span><span class="keyword">static</span> <span class="keyword">constexpr</span> <span class="keywordtype">int</span> HALF_FLT_MANTISSA_BITS = 10;</div>
    152. 

  152. <div class="line"><a id="l00041" name="l00041"></a><span class="lineno">   41</span><span class="keyword">static</span> <span class="keyword">constexpr</span> <span class="keywordtype">int</span> HALF_FLT_MANTISSA_MASK = (1 &lt;&lt; HALF_FLT_MANTISSA_BITS) - 1;</div>
    153. 

  153. <div class="line"><a id="l00042" name="l00042"></a><span class="lineno">   42</span><span class="keyword">static</span> <span class="keyword">constexpr</span> <span class="keywordtype">int</span> HALF_FLT_EXPONENT_AND_MANTISSA_MASK = HALF_FLT_MANTISSA_MASK + (HALF_FLT_EXPONENT_MASK &lt;&lt; HALF_FLT_EXPONENT_POS);</div>
    154. 

  154. <div class="line"><a id="l00043" name="l00043"></a><span class="lineno">   43</span> </div>
    155. 

  155. <div class="foldopen" id="foldopen00045" data-start="{" data-end="};">
    156. 

  156. <div class="line"><a id="l00045" name="l00045"></a><span class="lineno"><a class="line" href="namespace_half_float_conversion.html#aa3241cac5bd296cd04f7600e353eb1a4">   45</a></span><span class="keyword">enum</span> <a class="code hl_enumeration" href="namespace_half_float_conversion.html#aa3241cac5bd296cd04f7600e353eb1a4">ERoundingMode</a></div>
    157. 

  157. <div class="line"><a id="l00046" name="l00046"></a><span class="lineno">   46</span>{</div>
    158. 

  158. <div class="line"><a id="l00047" name="l00047"></a><span class="lineno"><a class="line" href="namespace_half_float_conversion.html#aa3241cac5bd296cd04f7600e353eb1a4a469f1ba56ff2b3d2cb1b8f5bbba127d9">   47</a></span>    <a class="code hl_enumvalue" href="namespace_half_float_conversion.html#aa3241cac5bd296cd04f7600e353eb1a4a469f1ba56ff2b3d2cb1b8f5bbba127d9">ROUND_TO_NEG_INF</a>,               </div>
    159. 

  159. <div class="line"><a id="l00048" name="l00048"></a><span class="lineno"><a class="line" href="namespace_half_float_conversion.html#aa3241cac5bd296cd04f7600e353eb1a4a73c8f88f26cb5185803bc16adb69fbd6">   48</a></span>    <a class="code hl_enumvalue" href="namespace_half_float_conversion.html#aa3241cac5bd296cd04f7600e353eb1a4a73c8f88f26cb5185803bc16adb69fbd6">ROUND_TO_POS_INF</a>,               </div>
    160. 

  160. <div class="line"><a id="l00049" name="l00049"></a><span class="lineno"><a class="line" href="namespace_half_float_conversion.html#aa3241cac5bd296cd04f7600e353eb1a4aaa7855ec8f43c914312cd51064ad0f64">   49</a></span>    <a class="code hl_enumvalue" href="namespace_half_float_conversion.html#aa3241cac5bd296cd04f7600e353eb1a4aaa7855ec8f43c914312cd51064ad0f64">ROUND_TO_NEAREST</a>,               </div>
    161. 

  161. <div class="line"><a id="l00050" name="l00050"></a><span class="lineno">   50</span>};</div>
    162. 

  162. </div>
    163. 

  163. <div class="line"><a id="l00051" name="l00051"></a><span class="lineno">   51</span> </div>
    164. 

  164. <div class="line"><a id="l00053" name="l00053"></a><span class="lineno">   53</span><span class="keyword">template</span> &lt;<span class="keywordtype">int</span> RoundingMode&gt;</div>
    165. 

  165. <div class="foldopen" id="foldopen00054" data-start="{" data-end="}">
    166. 

  166. <div class="line"><a id="l00054" name="l00054"></a><span class="lineno"><a class="line" href="namespace_half_float_conversion.html#af81e63a2dc6f5cdfeb150d4dab3fdcbc">   54</a></span><span class="keyword">inline</span> <a class="code hl_typedef" href="_half_float_8h.html#ad1bfc12994d4af290926964a4eaee88d">HalfFloat</a> <a class="code hl_function" href="namespace_half_float_conversion.html#af81e63a2dc6f5cdfeb150d4dab3fdcbc">FromFloatFallback</a>(<span class="keywordtype">float</span> inV)</div>
    167. 

  167. <div class="line"><a id="l00055" name="l00055"></a><span class="lineno">   55</span>{</div>
    168. 

  168. <div class="line"><a id="l00056" name="l00056"></a><span class="lineno">   56</span>    <span class="comment">// Reinterpret the float as an uint32</span></div>
    169. 

  169. <div class="line"><a id="l00057" name="l00057"></a><span class="lineno">   57</span>    <a class="code hl_typedef" href="_core_8h.html#a8f95e75e58492e87412191fabadd8ca8">uint32</a> value = <a class="code hl_function" href="_math_8h.html#ab2cbe30946edbf23887cfc1291025866">BitCast&lt;uint32&gt;</a>(inV);</div>
    170. 

  170. <div class="line"><a id="l00058" name="l00058"></a><span class="lineno">   58</span> </div>
    171. 

  171. <div class="line"><a id="l00059" name="l00059"></a><span class="lineno">   59</span>    <span class="comment">// Extract exponent</span></div>
    172. 

  172. <div class="line"><a id="l00060" name="l00060"></a><span class="lineno">   60</span>    <a class="code hl_typedef" href="_core_8h.html#a8f95e75e58492e87412191fabadd8ca8">uint32</a> exponent = (value &gt;&gt; FLOAT_EXPONENT_POS) &amp; FLOAT_EXPONENT_MASK;</div>
    173. 

  173. <div class="line"><a id="l00061" name="l00061"></a><span class="lineno">   61</span> </div>
    174. 

  174. <div class="line"><a id="l00062" name="l00062"></a><span class="lineno">   62</span>    <span class="comment">// Extract mantissa</span></div>
    175. 

  175. <div class="line"><a id="l00063" name="l00063"></a><span class="lineno">   63</span>    <a class="code hl_typedef" href="_core_8h.html#a8f95e75e58492e87412191fabadd8ca8">uint32</a> mantissa = value &amp; FLOAT_MANTISSA_MASK;</div>
    176. 

  176. <div class="line"><a id="l00064" name="l00064"></a><span class="lineno">   64</span> </div>
    177. 

  177. <div class="line"><a id="l00065" name="l00065"></a><span class="lineno">   65</span>    <span class="comment">// Extract the sign and move it into the right spot for the half float (so we can just or it in at the end)</span></div>
    178. 

  178. <div class="line"><a id="l00066" name="l00066"></a><span class="lineno">   66</span>    <a class="code hl_typedef" href="_half_float_8h.html#ad1bfc12994d4af290926964a4eaee88d">HalfFloat</a> hf_sign = <a class="code hl_typedef" href="_half_float_8h.html#ad1bfc12994d4af290926964a4eaee88d">HalfFloat</a>(value &gt;&gt; (FLOAT_SIGN_POS - HALF_FLT_SIGN_POS)) &amp; (1 &lt;&lt; HALF_FLT_SIGN_POS);</div>
    179. 

  179. <div class="line"><a id="l00067" name="l00067"></a><span class="lineno">   67</span> </div>
    180. 

  180. <div class="line"><a id="l00068" name="l00068"></a><span class="lineno">   68</span>    <span class="comment">// Check NaN or INF</span></div>
    181. 

  181. <div class="line"><a id="l00069" name="l00069"></a><span class="lineno">   69</span>    <span class="keywordflow">if</span> (exponent == FLOAT_EXPONENT_MASK) <span class="comment">// NaN or INF</span></div>
    182. 

  182. <div class="line"><a id="l00070" name="l00070"></a><span class="lineno">   70</span>        <span class="keywordflow">return</span> hf_sign | (mantissa == 0? HALF_FLT_INF : HALF_FLT_NANQ);</div>
    183. 

  183. <div class="line"><a id="l00071" name="l00071"></a><span class="lineno">   71</span> </div>
    184. 

  184. <div class="line"><a id="l00072" name="l00072"></a><span class="lineno">   72</span>    <span class="comment">// Rebias the exponent for half floats</span></div>
    185. 

  185. <div class="line"><a id="l00073" name="l00073"></a><span class="lineno">   73</span>    <span class="keywordtype">int</span> rebiased_exponent = int(exponent) - FLOAT_EXPONENT_BIAS + HALF_FLT_EXPONENT_BIAS;</div>
    186. 

  186. <div class="line"><a id="l00074" name="l00074"></a><span class="lineno">   74</span> </div>
    187. 

  187. <div class="line"><a id="l00075" name="l00075"></a><span class="lineno">   75</span>    <span class="comment">// Check overflow to infinity</span></div>
    188. 

  188. <div class="line"><a id="l00076" name="l00076"></a><span class="lineno">   76</span>    <span class="keywordflow">if</span> (rebiased_exponent &gt;= HALF_FLT_EXPONENT_MASK)</div>
    189. 

  189. <div class="line"><a id="l00077" name="l00077"></a><span class="lineno">   77</span>    {</div>
    190. 

  190. <div class="line"><a id="l00078" name="l00078"></a><span class="lineno">   78</span>        <span class="keywordtype">bool</span> round_up = RoundingMode == <a class="code hl_enumvalue" href="namespace_half_float_conversion.html#aa3241cac5bd296cd04f7600e353eb1a4aaa7855ec8f43c914312cd51064ad0f64">ROUND_TO_NEAREST</a> || (hf_sign == 0) == (RoundingMode == <a class="code hl_enumvalue" href="namespace_half_float_conversion.html#aa3241cac5bd296cd04f7600e353eb1a4a73c8f88f26cb5185803bc16adb69fbd6">ROUND_TO_POS_INF</a>);</div>
    191. 

  191. <div class="line"><a id="l00079" name="l00079"></a><span class="lineno">   79</span>        <span class="keywordflow">return</span> hf_sign | (round_up? HALF_FLT_INF : HALF_FLT_MAX);</div>
    192. 

  192. <div class="line"><a id="l00080" name="l00080"></a><span class="lineno">   80</span>    }</div>
    193. 

  193. <div class="line"><a id="l00081" name="l00081"></a><span class="lineno">   81</span> </div>
    194. 

  194. <div class="line"><a id="l00082" name="l00082"></a><span class="lineno">   82</span>    <span class="comment">// Check underflow to zero</span></div>
    195. 

  195. <div class="line"><a id="l00083" name="l00083"></a><span class="lineno">   83</span>    <span class="keywordflow">if</span> (rebiased_exponent &lt; -HALF_FLT_MANTISSA_BITS)</div>
    196. 

  196. <div class="line"><a id="l00084" name="l00084"></a><span class="lineno">   84</span>    {</div>
    197. 

  197. <div class="line"><a id="l00085" name="l00085"></a><span class="lineno">   85</span>        <span class="keywordtype">bool</span> round_up = RoundingMode != <a class="code hl_enumvalue" href="namespace_half_float_conversion.html#aa3241cac5bd296cd04f7600e353eb1a4aaa7855ec8f43c914312cd51064ad0f64">ROUND_TO_NEAREST</a> &amp;&amp; (hf_sign == 0) == (RoundingMode == <a class="code hl_enumvalue" href="namespace_half_float_conversion.html#aa3241cac5bd296cd04f7600e353eb1a4a73c8f88f26cb5185803bc16adb69fbd6">ROUND_TO_POS_INF</a>) &amp;&amp; (value &amp; FLOAT_EXPONENT_AND_MANTISSA_MASK) != 0;</div>
    198. 

  198. <div class="line"><a id="l00086" name="l00086"></a><span class="lineno">   86</span>        <span class="keywordflow">return</span> hf_sign | (round_up? 1 : 0);</div>
    199. 

  199. <div class="line"><a id="l00087" name="l00087"></a><span class="lineno">   87</span>    }</div>
    200. 

  200. <div class="line"><a id="l00088" name="l00088"></a><span class="lineno">   88</span> </div>
    201. 

  201. <div class="line"><a id="l00089" name="l00089"></a><span class="lineno">   89</span>    <a class="code hl_typedef" href="_half_float_8h.html#ad1bfc12994d4af290926964a4eaee88d">HalfFloat</a> hf_exponent;</div>
    202. 

  202. <div class="line"><a id="l00090" name="l00090"></a><span class="lineno">   90</span>    <span class="keywordtype">int</span> shift;</div>
    203. 

  203. <div class="line"><a id="l00091" name="l00091"></a><span class="lineno">   91</span>    <span class="keywordflow">if</span> (rebiased_exponent &lt;= 0)</div>
    204. 

  204. <div class="line"><a id="l00092" name="l00092"></a><span class="lineno">   92</span>    {</div>
    205. 

  205. <div class="line"><a id="l00093" name="l00093"></a><span class="lineno">   93</span>        <span class="comment">// Underflow to denormalized number</span></div>
    206. 

  206. <div class="line"><a id="l00094" name="l00094"></a><span class="lineno">   94</span>        hf_exponent = 0;</div>
    207. 

  207. <div class="line"><a id="l00095" name="l00095"></a><span class="lineno">   95</span>        mantissa |= 1 &lt;&lt; FLOAT_MANTISSA_BITS; <span class="comment">// Add the implicit 1 bit to the mantissa</span></div>
    208. 

  208. <div class="line"><a id="l00096" name="l00096"></a><span class="lineno">   96</span>        shift = FLOAT_MANTISSA_BITS - HALF_FLT_MANTISSA_BITS + 1 - rebiased_exponent;</div>
    209. 

  209. <div class="line"><a id="l00097" name="l00097"></a><span class="lineno">   97</span>    }</div>
    210. 

  210. <div class="line"><a id="l00098" name="l00098"></a><span class="lineno">   98</span>    <span class="keywordflow">else</span></div>
    211. 

  211. <div class="line"><a id="l00099" name="l00099"></a><span class="lineno">   99</span>    {</div>
    212. 

  212. <div class="line"><a id="l00100" name="l00100"></a><span class="lineno">  100</span>        <span class="comment">// Normal half float</span></div>
    213. 

  213. <div class="line"><a id="l00101" name="l00101"></a><span class="lineno">  101</span>        hf_exponent = <a class="code hl_typedef" href="_half_float_8h.html#ad1bfc12994d4af290926964a4eaee88d">HalfFloat</a>(rebiased_exponent &lt;&lt; HALF_FLT_EXPONENT_POS);</div>
    214. 

  214. <div class="line"><a id="l00102" name="l00102"></a><span class="lineno">  102</span>        shift = FLOAT_MANTISSA_BITS - HALF_FLT_MANTISSA_BITS;</div>
    215. 

  215. <div class="line"><a id="l00103" name="l00103"></a><span class="lineno">  103</span>    }</div>
    216. 

  216. <div class="line"><a id="l00104" name="l00104"></a><span class="lineno">  104</span> </div>
    217. 

  217. <div class="line"><a id="l00105" name="l00105"></a><span class="lineno">  105</span>    <span class="comment">// Compose the half float</span></div>
    218. 

  218. <div class="line"><a id="l00106" name="l00106"></a><span class="lineno">  106</span>    <a class="code hl_typedef" href="_half_float_8h.html#ad1bfc12994d4af290926964a4eaee88d">HalfFloat</a> hf_mantissa = <a class="code hl_typedef" href="_half_float_8h.html#ad1bfc12994d4af290926964a4eaee88d">HalfFloat</a>(mantissa &gt;&gt; shift);</div>
    219. 

  219. <div class="line"><a id="l00107" name="l00107"></a><span class="lineno">  107</span>    <a class="code hl_typedef" href="_half_float_8h.html#ad1bfc12994d4af290926964a4eaee88d">HalfFloat</a> hf = hf_sign | hf_exponent | hf_mantissa;</div>
    220. 

  220. <div class="line"><a id="l00108" name="l00108"></a><span class="lineno">  108</span> </div>
    221. 

  221. <div class="line"><a id="l00109" name="l00109"></a><span class="lineno">  109</span>    <span class="comment">// Calculate the remaining bits that we&#39;re discarding</span></div>
    222. 

  222. <div class="line"><a id="l00110" name="l00110"></a><span class="lineno">  110</span>    <a class="code hl_typedef" href="_core_8h.html#a69aa29b598b851b0640aa225a9e5d61d">uint</a> remainder = mantissa &amp; ((1 &lt;&lt; shift) - 1);</div>
    223. 

  223. <div class="line"><a id="l00111" name="l00111"></a><span class="lineno">  111</span> </div>
    224. 

  224. <div class="line"><a id="l00112" name="l00112"></a><span class="lineno">  112</span>    <span class="keywordflow">if</span> <span class="keyword">constexpr</span> (RoundingMode == <a class="code hl_enumvalue" href="namespace_half_float_conversion.html#aa3241cac5bd296cd04f7600e353eb1a4aaa7855ec8f43c914312cd51064ad0f64">ROUND_TO_NEAREST</a>)</div>
    225. 

  225. <div class="line"><a id="l00113" name="l00113"></a><span class="lineno">  113</span>    {</div>
    226. 

  226. <div class="line"><a id="l00114" name="l00114"></a><span class="lineno">  114</span>        <span class="comment">// Round to nearest</span></div>
    227. 

  227. <div class="line"><a id="l00115" name="l00115"></a><span class="lineno">  115</span>        <a class="code hl_typedef" href="_core_8h.html#a69aa29b598b851b0640aa225a9e5d61d">uint</a> round_threshold = 1 &lt;&lt; (shift - 1);</div>
    228. 

  228. <div class="line"><a id="l00116" name="l00116"></a><span class="lineno">  116</span>        <span class="keywordflow">if</span> (remainder &gt; round_threshold <span class="comment">// Above threshold, we must always round</span></div>
    229. 

  229. <div class="line"><a id="l00117" name="l00117"></a><span class="lineno">  117</span>            || (remainder == round_threshold &amp;&amp; (hf_mantissa &amp; 1))) <span class="comment">// When equal, round to nearest even</span></div>
    230. 

  230. <div class="line"><a id="l00118" name="l00118"></a><span class="lineno">  118</span>            hf++; <span class="comment">// May overflow to infinity</span></div>
    231. 

  231. <div class="line"><a id="l00119" name="l00119"></a><span class="lineno">  119</span>    }</div>
    232. 

  232. <div class="line"><a id="l00120" name="l00120"></a><span class="lineno">  120</span>    <span class="keywordflow">else</span></div>
    233. 

  233. <div class="line"><a id="l00121" name="l00121"></a><span class="lineno">  121</span>    {</div>
    234. 

  234. <div class="line"><a id="l00122" name="l00122"></a><span class="lineno">  122</span>        <span class="comment">// Round up or down (truncate) depending on the rounding mode</span></div>
    235. 

  235. <div class="line"><a id="l00123" name="l00123"></a><span class="lineno">  123</span>        <span class="keywordtype">bool</span> round_up = (hf_sign == 0) == (RoundingMode == <a class="code hl_enumvalue" href="namespace_half_float_conversion.html#aa3241cac5bd296cd04f7600e353eb1a4a73c8f88f26cb5185803bc16adb69fbd6">ROUND_TO_POS_INF</a>) &amp;&amp; remainder != 0;</div>
    236. 

  236. <div class="line"><a id="l00124" name="l00124"></a><span class="lineno">  124</span>        <span class="keywordflow">if</span> (round_up)</div>
    237. 

  237. <div class="line"><a id="l00125" name="l00125"></a><span class="lineno">  125</span>            hf++; <span class="comment">// May overflow to infinity</span></div>
    238. 

  238. <div class="line"><a id="l00126" name="l00126"></a><span class="lineno">  126</span>    }</div>
    239. 

  239. <div class="line"><a id="l00127" name="l00127"></a><span class="lineno">  127</span> </div>
    240. 

  240. <div class="line"><a id="l00128" name="l00128"></a><span class="lineno">  128</span>    <span class="keywordflow">return</span> hf;</div>
    241. 

  241. <div class="line"><a id="l00129" name="l00129"></a><span class="lineno">  129</span>}</div>
    242. 

  242. </div>
    243. 

  243. <div class="line"><a id="l00130" name="l00130"></a><span class="lineno">  130</span> </div>
    244. 

  244. <div class="line"><a id="l00132" name="l00132"></a><span class="lineno">  132</span><span class="keyword">template</span> &lt;<span class="keywordtype">int</span> RoundingMode&gt;</div>
    245. 

  245. <div class="foldopen" id="foldopen00133" data-start="{" data-end="}">
    246. 

  246. <div class="line"><a id="l00133" name="l00133"></a><span class="lineno"><a class="line" href="namespace_half_float_conversion.html#a65b0aba81626b49a45fb9ac238c04d2d">  133</a></span>JPH_INLINE <a class="code hl_typedef" href="_half_float_8h.html#ad1bfc12994d4af290926964a4eaee88d">HalfFloat</a> <a class="code hl_function" href="namespace_half_float_conversion.html#a65b0aba81626b49a45fb9ac238c04d2d">FromFloat</a>(<span class="keywordtype">float</span> inV)</div>
    247. 

  247. <div class="line"><a id="l00134" name="l00134"></a><span class="lineno">  134</span>{</div>
    248. 

  248. <div class="line"><a id="l00135" name="l00135"></a><span class="lineno">  135</span><span class="preprocessor">#ifdef JPH_USE_F16C</span></div>
    249. 

  249. <div class="line"><a id="l00136" name="l00136"></a><span class="lineno">  136</span>    <a class="code hl_class" href="class_f_p_exception_disable_overflow.html">FPExceptionDisableOverflow</a> disable_overflow;</div>
    250. 

  250. <div class="line"><a id="l00137" name="l00137"></a><span class="lineno">  137</span>    <a class="code hl_define" href="_core_8h.html#a719a73b9e445920bf5969f05d01ce69c">JPH_UNUSED</a>(disable_overflow);</div>
    251. 

  251. <div class="line"><a id="l00138" name="l00138"></a><span class="lineno">  138</span> </div>
    252. 

  252. <div class="line"><a id="l00139" name="l00139"></a><span class="lineno">  139</span>    <span class="keyword">union</span></div>
    253. 

  253. <div class="line"><a id="l00140" name="l00140"></a><span class="lineno">  140</span>    {</div>
    254. 

  254. <div class="line"><a id="l00141" name="l00141"></a><span class="lineno">  141</span>        __m128i     u128;</div>
    255. 

  255. <div class="line"><a id="l00142" name="l00142"></a><span class="lineno">  142</span>        <a class="code hl_typedef" href="_half_float_8h.html#ad1bfc12994d4af290926964a4eaee88d">HalfFloat</a>   u16[8];</div>
    256. 

  256. <div class="line"><a id="l00143" name="l00143"></a><span class="lineno">  143</span>    } hf;</div>
    257. 

  257. <div class="line"><a id="l00144" name="l00144"></a><span class="lineno">  144</span>    __m128 val = _mm_load_ss(&amp;inV);</div>
    258. 

  258. <div class="line"><a id="l00145" name="l00145"></a><span class="lineno">  145</span>    <span class="keywordflow">switch</span> (RoundingMode)</div>
    259. 

  259. <div class="line"><a id="l00146" name="l00146"></a><span class="lineno">  146</span>    {</div>
    260. 

  260. <div class="line"><a id="l00147" name="l00147"></a><span class="lineno">  147</span>    <span class="keywordflow">case</span> <a class="code hl_enumvalue" href="namespace_half_float_conversion.html#aa3241cac5bd296cd04f7600e353eb1a4a469f1ba56ff2b3d2cb1b8f5bbba127d9">ROUND_TO_NEG_INF</a>:</div>
    261. 

  261. <div class="line"><a id="l00148" name="l00148"></a><span class="lineno">  148</span>        hf.u128 = _mm_cvtps_ph(val, _MM_FROUND_TO_NEG_INF);</div>
    262. 

  262. <div class="line"><a id="l00149" name="l00149"></a><span class="lineno">  149</span>        <span class="keywordflow">break</span>;</div>
    263. 

  263. <div class="line"><a id="l00150" name="l00150"></a><span class="lineno">  150</span>    <span class="keywordflow">case</span> <a class="code hl_enumvalue" href="namespace_half_float_conversion.html#aa3241cac5bd296cd04f7600e353eb1a4a73c8f88f26cb5185803bc16adb69fbd6">ROUND_TO_POS_INF</a>:</div>
    264. 

  264. <div class="line"><a id="l00151" name="l00151"></a><span class="lineno">  151</span>        hf.u128 = _mm_cvtps_ph(val, _MM_FROUND_TO_POS_INF);</div>
    265. 

  265. <div class="line"><a id="l00152" name="l00152"></a><span class="lineno">  152</span>        <span class="keywordflow">break</span>;</div>
    266. 

  266. <div class="line"><a id="l00153" name="l00153"></a><span class="lineno">  153</span>    <span class="keywordflow">case</span> <a class="code hl_enumvalue" href="namespace_half_float_conversion.html#aa3241cac5bd296cd04f7600e353eb1a4aaa7855ec8f43c914312cd51064ad0f64">ROUND_TO_NEAREST</a>:</div>
    267. 

  267. <div class="line"><a id="l00154" name="l00154"></a><span class="lineno">  154</span>        hf.u128 = _mm_cvtps_ph(val, _MM_FROUND_TO_NEAREST_INT);</div>
    268. 

  268. <div class="line"><a id="l00155" name="l00155"></a><span class="lineno">  155</span>        <span class="keywordflow">break</span>;</div>
    269. 

  269. <div class="line"><a id="l00156" name="l00156"></a><span class="lineno">  156</span>    }</div>
    270. 

  270. <div class="line"><a id="l00157" name="l00157"></a><span class="lineno">  157</span>    <span class="keywordflow">return</span> hf.u16[0];</div>
    271. 

  271. <div class="line"><a id="l00158" name="l00158"></a><span class="lineno">  158</span><span class="preprocessor">#else</span></div>
    272. 

  272. <div class="line"><a id="l00159" name="l00159"></a><span class="lineno">  159</span>    <span class="keywordflow">return</span> <a class="code hl_function" href="namespace_half_float_conversion.html#af81e63a2dc6f5cdfeb150d4dab3fdcbc">FromFloatFallback&lt;RoundingMode&gt;</a>(inV);</div>
    273. 

  273. <div class="line"><a id="l00160" name="l00160"></a><span class="lineno">  160</span><span class="preprocessor">#endif</span></div>
    274. 

  274. <div class="line"><a id="l00161" name="l00161"></a><span class="lineno">  161</span>}</div>
    275. 

  275. </div>
    276. 

  276. <div class="line"><a id="l00162" name="l00162"></a><span class="lineno">  162</span> </div>
    277. 

  277. <div class="foldopen" id="foldopen00164" data-start="{" data-end="}">
    278. 

  278. <div class="line"><a id="l00164" name="l00164"></a><span class="lineno"><a class="line" href="namespace_half_float_conversion.html#a222fa9e87d5e494aa324defa2925d03e">  164</a></span><span class="keyword">inline</span> <a class="code hl_class" href="class_vec4.html">Vec4</a> <a class="code hl_function" href="namespace_half_float_conversion.html#a222fa9e87d5e494aa324defa2925d03e">ToFloatFallback</a>(<a class="code hl_class" href="class_u_vec4.html">UVec4Arg</a> inValue)</div>
    279. 

  279. <div class="line"><a id="l00165" name="l00165"></a><span class="lineno">  165</span>{</div>
    280. 

  280. <div class="line"><a id="l00166" name="l00166"></a><span class="lineno">  166</span>    <span class="comment">// Unpack half floats to 4 uint32&#39;s</span></div>
    281. 

  281. <div class="line"><a id="l00167" name="l00167"></a><span class="lineno">  167</span>    <a class="code hl_class" href="class_u_vec4.html">UVec4</a> value = inValue.<a class="code hl_function" href="class_u_vec4.html#a231db23152af3fc49272a7842432b2d8">Expand4Uint16Lo</a>();</div>
    282. 

  282. <div class="line"><a id="l00168" name="l00168"></a><span class="lineno">  168</span> </div>
    283. 

  283. <div class="line"><a id="l00169" name="l00169"></a><span class="lineno">  169</span>    <span class="comment">// Normal half float path, extract the exponent and mantissa, shift them into place and update the exponent bias</span></div>
    284. 

  284. <div class="line"><a id="l00170" name="l00170"></a><span class="lineno">  170</span>    <a class="code hl_class" href="class_u_vec4.html">UVec4</a> exponent_mantissa = <a class="code hl_function" href="class_u_vec4.html#a69a2126a24a31ead596e3316c1285145">UVec4::sAnd</a>(value, <a class="code hl_function" href="class_u_vec4.html#a4287a7bd825aaf6111f310e0c92bd152">UVec4::sReplicate</a>(HALF_FLT_EXPONENT_AND_MANTISSA_MASK)).<a class="code hl_function" href="class_u_vec4.html#a159c5fb6e8cb1c49a87a48d3977b50b6">LogicalShiftLeft</a>&lt;FLOAT_EXPONENT_POS - HALF_FLT_EXPONENT_POS&gt;() + <a class="code hl_function" href="class_u_vec4.html#a4287a7bd825aaf6111f310e0c92bd152">UVec4::sReplicate</a>((FLOAT_EXPONENT_BIAS - HALF_FLT_EXPONENT_BIAS) &lt;&lt; FLOAT_EXPONENT_POS);</div>
    285. 

  285. <div class="line"><a id="l00171" name="l00171"></a><span class="lineno">  171</span> </div>
    286. 

  286. <div class="line"><a id="l00172" name="l00172"></a><span class="lineno">  172</span>    <span class="comment">// Denormalized half float path, renormalize the float</span></div>
    287. 

  287. <div class="line"><a id="l00173" name="l00173"></a><span class="lineno">  173</span>    <a class="code hl_class" href="class_u_vec4.html">UVec4</a> exponent_mantissa_denormalized = ((exponent_mantissa + <a class="code hl_function" href="class_u_vec4.html#a4287a7bd825aaf6111f310e0c92bd152">UVec4::sReplicate</a>(1 &lt;&lt; FLOAT_EXPONENT_POS)).ReinterpretAsFloat() - <a class="code hl_function" href="class_u_vec4.html#a4287a7bd825aaf6111f310e0c92bd152">UVec4::sReplicate</a>((FLOAT_EXPONENT_BIAS - HALF_FLT_EXPONENT_BIAS + 1) &lt;&lt; FLOAT_EXPONENT_POS).ReinterpretAsFloat()).ReinterpretAsInt();</div>
    288. 

  288. <div class="line"><a id="l00174" name="l00174"></a><span class="lineno">  174</span> </div>
    289. 

  289. <div class="line"><a id="l00175" name="l00175"></a><span class="lineno">  175</span>    <span class="comment">// NaN / INF path, set all exponent bits</span></div>
    290. 

  290. <div class="line"><a id="l00176" name="l00176"></a><span class="lineno">  176</span>    <a class="code hl_class" href="class_u_vec4.html">UVec4</a> exponent_mantissa_nan_inf = <a class="code hl_function" href="class_u_vec4.html#a7a3a55e425174799fab88e508c62fa64">UVec4::sOr</a>(exponent_mantissa, <a class="code hl_function" href="class_u_vec4.html#a4287a7bd825aaf6111f310e0c92bd152">UVec4::sReplicate</a>(FLOAT_EXPONENT_MASK &lt;&lt; FLOAT_EXPONENT_POS));</div>
    291. 

  291. <div class="line"><a id="l00177" name="l00177"></a><span class="lineno">  177</span> </div>
    292. 

  292. <div class="line"><a id="l00178" name="l00178"></a><span class="lineno">  178</span>    <span class="comment">// Get the exponent to determine which of the paths we should take</span></div>
    293. 

  293. <div class="line"><a id="l00179" name="l00179"></a><span class="lineno">  179</span>    <a class="code hl_class" href="class_u_vec4.html">UVec4</a> exponent_mask = <a class="code hl_function" href="class_u_vec4.html#a4287a7bd825aaf6111f310e0c92bd152">UVec4::sReplicate</a>(HALF_FLT_EXPONENT_MASK &lt;&lt; HALF_FLT_EXPONENT_POS);</div>
    294. 

  294. <div class="line"><a id="l00180" name="l00180"></a><span class="lineno">  180</span>    <a class="code hl_class" href="class_u_vec4.html">UVec4</a> exponent = <a class="code hl_function" href="class_u_vec4.html#a69a2126a24a31ead596e3316c1285145">UVec4::sAnd</a>(value, exponent_mask);</div>
    295. 

  295. <div class="line"><a id="l00181" name="l00181"></a><span class="lineno">  181</span>    <a class="code hl_class" href="class_u_vec4.html">UVec4</a> is_denormalized = <a class="code hl_function" href="class_u_vec4.html#a7124c8dadba4fa2467bb542e33b664f1">UVec4::sEquals</a>(exponent, <a class="code hl_function" href="class_u_vec4.html#ac95737616e92901bf3ebf5746a861233">UVec4::sZero</a>());</div>
    296. 

  296. <div class="line"><a id="l00182" name="l00182"></a><span class="lineno">  182</span>    <a class="code hl_class" href="class_u_vec4.html">UVec4</a> is_nan_inf = <a class="code hl_function" href="class_u_vec4.html#a7124c8dadba4fa2467bb542e33b664f1">UVec4::sEquals</a>(exponent, exponent_mask);</div>
    297. 

  297. <div class="line"><a id="l00183" name="l00183"></a><span class="lineno">  183</span> </div>
    298. 

  298. <div class="line"><a id="l00184" name="l00184"></a><span class="lineno">  184</span>    <span class="comment">// Select the correct result</span></div>
    299. 

  299. <div class="line"><a id="l00185" name="l00185"></a><span class="lineno">  185</span>    <a class="code hl_class" href="class_u_vec4.html">UVec4</a> result_exponent_mantissa = <a class="code hl_function" href="class_u_vec4.html#a1f8d3047862c407ba470351926ebd5b8">UVec4::sSelect</a>(<a class="code hl_function" href="class_u_vec4.html#a1f8d3047862c407ba470351926ebd5b8">UVec4::sSelect</a>(exponent_mantissa, exponent_mantissa_nan_inf, is_nan_inf), exponent_mantissa_denormalized, is_denormalized);</div>
    300. 

  300. <div class="line"><a id="l00186" name="l00186"></a><span class="lineno">  186</span> </div>
    301. 

  301. <div class="line"><a id="l00187" name="l00187"></a><span class="lineno">  187</span>    <span class="comment">// Extract the sign bit and shift it to the left</span></div>
    302. 

  302. <div class="line"><a id="l00188" name="l00188"></a><span class="lineno">  188</span>    <a class="code hl_class" href="class_u_vec4.html">UVec4</a> sign = <a class="code hl_function" href="class_u_vec4.html#a69a2126a24a31ead596e3316c1285145">UVec4::sAnd</a>(value, <a class="code hl_function" href="class_u_vec4.html#a4287a7bd825aaf6111f310e0c92bd152">UVec4::sReplicate</a>(1 &lt;&lt; HALF_FLT_SIGN_POS)).<a class="code hl_function" href="class_u_vec4.html#a159c5fb6e8cb1c49a87a48d3977b50b6">LogicalShiftLeft</a>&lt;FLOAT_SIGN_POS - HALF_FLT_SIGN_POS&gt;();</div>
    303. 

  303. <div class="line"><a id="l00189" name="l00189"></a><span class="lineno">  189</span> </div>
    304. 

  304. <div class="line"><a id="l00190" name="l00190"></a><span class="lineno">  190</span>    <span class="comment">// Construct the float</span></div>
    305. 

  305. <div class="line"><a id="l00191" name="l00191"></a><span class="lineno">  191</span>    <span class="keywordflow">return</span> <a class="code hl_function" href="class_u_vec4.html#a7a3a55e425174799fab88e508c62fa64">UVec4::sOr</a>(sign, result_exponent_mantissa).<a class="code hl_function" href="class_u_vec4.html#af399ef91439555b5264eec1790537547">ReinterpretAsFloat</a>();</div>
    306. 

  306. <div class="line"><a id="l00192" name="l00192"></a><span class="lineno">  192</span>}</div>
    307. 

  307. </div>
    308. 

  308. <div class="line"><a id="l00193" name="l00193"></a><span class="lineno">  193</span> </div>
    309. 

  309. <div class="foldopen" id="foldopen00195" data-start="{" data-end="}">
    310. 

  310. <div class="line"><a id="l00195" name="l00195"></a><span class="lineno"><a class="line" href="namespace_half_float_conversion.html#a25cf44e188c51d03e061f23e1eabe36a">  195</a></span>JPH_INLINE <a class="code hl_class" href="class_vec4.html">Vec4</a> <a class="code hl_function" href="namespace_half_float_conversion.html#a25cf44e188c51d03e061f23e1eabe36a">ToFloat</a>(<a class="code hl_class" href="class_u_vec4.html">UVec4Arg</a> inValue)</div>
    311. 

  311. <div class="line"><a id="l00196" name="l00196"></a><span class="lineno">  196</span>{</div>
    312. 

  312. <div class="line"><a id="l00197" name="l00197"></a><span class="lineno">  197</span><span class="preprocessor">#if defined(JPH_USE_F16C)</span></div>
    313. 

  313. <div class="line"><a id="l00198" name="l00198"></a><span class="lineno">  198</span>    <span class="keywordflow">return</span> _mm_cvtph_ps(inValue.<a class="code hl_variable" href="class_u_vec4.html#a9eaa6e208405d15d1e5df9cb5dac184f">mValue</a>);</div>
    314. 

  314. <div class="line"><a id="l00199" name="l00199"></a><span class="lineno">  199</span><span class="preprocessor">#elif defined(JPH_USE_NEON)</span></div>
    315. 

  315. <div class="line"><a id="l00200" name="l00200"></a><span class="lineno">  200</span>    <span class="keywordflow">return</span> vcvt_f32_f16(vreinterpret_f16_u32(vget_low_u32(inValue.<a class="code hl_variable" href="class_u_vec4.html#a9eaa6e208405d15d1e5df9cb5dac184f">mValue</a>)));</div>
    316. 

  316. <div class="line"><a id="l00201" name="l00201"></a><span class="lineno">  201</span><span class="preprocessor">#else</span></div>
    317. 

  317. <div class="line"><a id="l00202" name="l00202"></a><span class="lineno">  202</span>    <span class="keywordflow">return</span> <a class="code hl_function" href="namespace_half_float_conversion.html#a222fa9e87d5e494aa324defa2925d03e">ToFloatFallback</a>(inValue);</div>
    318. 

  318. <div class="line"><a id="l00203" name="l00203"></a><span class="lineno">  203</span><span class="preprocessor">#endif</span></div>
    319. 

  319. <div class="line"><a id="l00204" name="l00204"></a><span class="lineno">  204</span>}</div>
    320. 

  320. </div>
    321. 

  321. <div class="line"><a id="l00205" name="l00205"></a><span class="lineno">  205</span> </div>
    322. 

  322. <div class="line"><a id="l00206" name="l00206"></a><span class="lineno">  206</span>} <span class="comment">// HalfFloatConversion</span></div>
    323. 

  323. </div>
    324. 

  324. <div class="line"><a id="l00207" name="l00207"></a><span class="lineno">  207</span> </div>
    325. 

  325. <div class="line"><a id="l00208" name="l00208"></a><span class="lineno">  208</span><a class="code hl_define" href="_core_8h.html#a73da8725998b00321a9db341202d650d">JPH_NAMESPACE_END</a></div>
    326. 

  326. <div class="ttc" id="a_core_8h_html_a69aa29b598b851b0640aa225a9e5d61d"><div class="ttname"><a href="_core_8h.html#a69aa29b598b851b0640aa225a9e5d61d">uint</a></div><div class="ttdeci">unsigned int uint</div><div class="ttdef"><b>Definition</b> Core.h:500</div></div>
    327. 

  327. <div class="ttc" id="a_core_8h_html_a719a73b9e445920bf5969f05d01ce69c"><div class="ttname"><a href="_core_8h.html#a719a73b9e445920bf5969f05d01ce69c">JPH_UNUSED</a></div><div class="ttdeci">#define JPH_UNUSED(x)</div><div class="ttdef"><b>Definition</b> Core.h:597</div></div>
    328. 

  328. <div class="ttc" id="a_core_8h_html_a73da8725998b00321a9db341202d650d"><div class="ttname"><a href="_core_8h.html#a73da8725998b00321a9db341202d650d">JPH_NAMESPACE_END</a></div><div class="ttdeci">#define JPH_NAMESPACE_END</div><div class="ttdef"><b>Definition</b> Core.h:425</div></div>
    329. 

  329. <div class="ttc" id="a_core_8h_html_a8f95e75e58492e87412191fabadd8ca8"><div class="ttname"><a href="_core_8h.html#a8f95e75e58492e87412191fabadd8ca8">uint32</a></div><div class="ttdeci">std::uint32_t uint32</div><div class="ttdef"><b>Definition</b> Core.h:503</div></div>
    330. 

  330. <div class="ttc" id="a_core_8h_html_ad14098b68b8c44ea6112601031268405"><div class="ttname"><a href="_core_8h.html#ad14098b68b8c44ea6112601031268405">JPH_NAMESPACE_BEGIN</a></div><div class="ttdeci">#define JPH_NAMESPACE_BEGIN</div><div class="ttdef"><b>Definition</b> Core.h:419</div></div>
    331. 

  331. <div class="ttc" id="a_core_8h_html_aea9840dd402bd5d5201bef4633398cb3"><div class="ttname"><a href="_core_8h.html#aea9840dd402bd5d5201bef4633398cb3">uint16</a></div><div class="ttdeci">std::uint16_t uint16</div><div class="ttdef"><b>Definition</b> Core.h:502</div></div>
    332. 

  332. <div class="ttc" id="a_f_p_exception_8h_html"><div class="ttname"><a href="_f_p_exception_8h.html">FPException.h</a></div></div>
    333. 

  333. <div class="ttc" id="a_half_float_8h_html_ad1bfc12994d4af290926964a4eaee88d"><div class="ttname"><a href="_half_float_8h.html#ad1bfc12994d4af290926964a4eaee88d">HalfFloat</a></div><div class="ttdeci">uint16 HalfFloat</div><div class="ttdef"><b>Definition</b> HalfFloat.h:12</div></div>
    334. 

  334. <div class="ttc" id="a_math_8h_html_ab2cbe30946edbf23887cfc1291025866"><div class="ttname"><a href="_math_8h.html#ab2cbe30946edbf23887cfc1291025866">BitCast</a></div><div class="ttdeci">JPH_INLINE To BitCast(const From &amp;inValue)</div><div class="ttdef"><b>Definition</b> Math.h:192</div></div>
    335. 

  335. <div class="ttc" id="a_vec4_8h_html"><div class="ttname"><a href="_vec4_8h.html">Vec4.h</a></div></div>
    336. 

  336. <div class="ttc" id="aclass_f_p_exception_disable_overflow_html"><div class="ttname"><a href="class_f_p_exception_disable_overflow.html">FPExceptionDisableOverflow</a></div><div class="ttdef"><b>Definition</b> FPException.h:92</div></div>
    337. 

  337. <div class="ttc" id="aclass_u_vec4_html"><div class="ttname"><a href="class_u_vec4.html">UVec4</a></div><div class="ttdef"><b>Definition</b> UVec4.h:12</div></div>
    338. 

  338. <div class="ttc" id="aclass_u_vec4_html_a159c5fb6e8cb1c49a87a48d3977b50b6"><div class="ttname"><a href="class_u_vec4.html#a159c5fb6e8cb1c49a87a48d3977b50b6">UVec4::LogicalShiftLeft</a></div><div class="ttdeci">JPH_INLINE UVec4 LogicalShiftLeft() const</div><div class="ttdoc">Shift all components by Count bits to the left (filling with zeros from the left)</div></div>
    339. 

  339. <div class="ttc" id="aclass_u_vec4_html_a1f8d3047862c407ba470351926ebd5b8"><div class="ttname"><a href="class_u_vec4.html#a1f8d3047862c407ba470351926ebd5b8">UVec4::sSelect</a></div><div class="ttdeci">static JPH_INLINE UVec4 sSelect(UVec4Arg inNotSet, UVec4Arg inSet, UVec4Arg inControl)</div><div class="ttdoc">Component wise select, returns inNotSet when highest bit of inControl = 0 and inSet when highest bit ...</div><div class="ttdef"><b>Definition</b> UVec4.inl:157</div></div>
    340. 

  340. <div class="ttc" id="aclass_u_vec4_html_a231db23152af3fc49272a7842432b2d8"><div class="ttname"><a href="class_u_vec4.html#a231db23152af3fc49272a7842432b2d8">UVec4::Expand4Uint16Lo</a></div><div class="ttdeci">JPH_INLINE UVec4 Expand4Uint16Lo() const</div><div class="ttdoc">Takes the lower 4 16 bits and expands them to X, Y, Z and W.</div><div class="ttdef"><b>Definition</b> UVec4.inl:518</div></div>
    341. 

  341. <div class="ttc" id="aclass_u_vec4_html_a4287a7bd825aaf6111f310e0c92bd152"><div class="ttname"><a href="class_u_vec4.html#a4287a7bd825aaf6111f310e0c92bd152">UVec4::sReplicate</a></div><div class="ttdeci">static JPH_INLINE UVec4 sReplicate(uint32 inV)</div><div class="ttdoc">Replicate int inV across all components.</div><div class="ttdef"><b>Definition</b> UVec4.inl:56</div></div>
    342. 

  342. <div class="ttc" id="aclass_u_vec4_html_a69a2126a24a31ead596e3316c1285145"><div class="ttname"><a href="class_u_vec4.html#a69a2126a24a31ead596e3316c1285145">UVec4::sAnd</a></div><div class="ttdeci">static JPH_INLINE UVec4 sAnd(UVec4Arg inV1, UVec4Arg inV2)</div><div class="ttdoc">Logical and (component wise)</div><div class="ttdef"><b>Definition</b> UVec4.inl:202</div></div>
    343. 

  343. <div class="ttc" id="aclass_u_vec4_html_a7124c8dadba4fa2467bb542e33b664f1"><div class="ttname"><a href="class_u_vec4.html#a7124c8dadba4fa2467bb542e33b664f1">UVec4::sEquals</a></div><div class="ttdeci">static JPH_INLINE UVec4 sEquals(UVec4Arg inV1, UVec4Arg inV2)</div><div class="ttdoc">Equals (component wise)</div><div class="ttdef"><b>Definition</b> UVec4.inl:143</div></div>
    344. 

  344. <div class="ttc" id="aclass_u_vec4_html_a7a3a55e425174799fab88e508c62fa64"><div class="ttname"><a href="class_u_vec4.html#a7a3a55e425174799fab88e508c62fa64">UVec4::sOr</a></div><div class="ttdeci">static JPH_INLINE UVec4 sOr(UVec4Arg inV1, UVec4Arg inV2)</div><div class="ttdoc">Logical or (component wise)</div><div class="ttdef"><b>Definition</b> UVec4.inl:174</div></div>
    345. 

  345. <div class="ttc" id="aclass_u_vec4_html_a9eaa6e208405d15d1e5df9cb5dac184f"><div class="ttname"><a href="class_u_vec4.html#a9eaa6e208405d15d1e5df9cb5dac184f">UVec4::mValue</a></div><div class="ttdeci">Type mValue</div><div class="ttdef"><b>Definition</b> UVec4.h:223</div></div>
    346. 

  346. <div class="ttc" id="aclass_u_vec4_html_ac95737616e92901bf3ebf5746a861233"><div class="ttname"><a href="class_u_vec4.html#ac95737616e92901bf3ebf5746a861233">UVec4::sZero</a></div><div class="ttdeci">static JPH_INLINE UVec4 sZero()</div><div class="ttdoc">Vector with all zeros.</div><div class="ttdef"><b>Definition</b> UVec4.inl:45</div></div>
    347. 

  347. <div class="ttc" id="aclass_u_vec4_html_af399ef91439555b5264eec1790537547"><div class="ttname"><a href="class_u_vec4.html#af399ef91439555b5264eec1790537547">UVec4::ReinterpretAsFloat</a></div><div class="ttdeci">JPH_INLINE Vec4 ReinterpretAsFloat() const</div><div class="ttdoc">Reinterpret UVec4 as a Vec4 (doesn't change the bits)</div><div class="ttdef"><b>Definition</b> UVec4.inl:367</div></div>
    348. 

  348. <div class="ttc" id="aclass_vec4_html"><div class="ttname"><a href="class_vec4.html">Vec4</a></div><div class="ttdef"><b>Definition</b> Vec4.h:14</div></div>
    349. 

  349. <div class="ttc" id="anamespace_half_float_conversion_html"><div class="ttname"><a href="namespace_half_float_conversion.html">HalfFloatConversion</a></div><div class="ttdef"><b>Definition</b> HalfFloat.h:22</div></div>
    350. 

  350. <div class="ttc" id="anamespace_half_float_conversion_html_a222fa9e87d5e494aa324defa2925d03e"><div class="ttname"><a href="namespace_half_float_conversion.html#a222fa9e87d5e494aa324defa2925d03e">HalfFloatConversion::ToFloatFallback</a></div><div class="ttdeci">Vec4 ToFloatFallback(UVec4Arg inValue)</div><div class="ttdoc">Convert 4 half floats (lower 64 bits) to floats, fallback version when no intrinsics available.</div><div class="ttdef"><b>Definition</b> HalfFloat.h:164</div></div>
    351. 

  351. <div class="ttc" id="anamespace_half_float_conversion_html_a25cf44e188c51d03e061f23e1eabe36a"><div class="ttname"><a href="namespace_half_float_conversion.html#a25cf44e188c51d03e061f23e1eabe36a">HalfFloatConversion::ToFloat</a></div><div class="ttdeci">JPH_INLINE Vec4 ToFloat(UVec4Arg inValue)</div><div class="ttdoc">Convert 4 half floats (lower 64 bits) to floats.</div><div class="ttdef"><b>Definition</b> HalfFloat.h:195</div></div>
    352. 

  352. <div class="ttc" id="anamespace_half_float_conversion_html_a65b0aba81626b49a45fb9ac238c04d2d"><div class="ttname"><a href="namespace_half_float_conversion.html#a65b0aba81626b49a45fb9ac238c04d2d">HalfFloatConversion::FromFloat</a></div><div class="ttdeci">JPH_INLINE HalfFloat FromFloat(float inV)</div><div class="ttdoc">Convert a float (32-bits) to a half float (16-bits)</div><div class="ttdef"><b>Definition</b> HalfFloat.h:133</div></div>
    353. 

  353. <div class="ttc" id="anamespace_half_float_conversion_html_aa3241cac5bd296cd04f7600e353eb1a4"><div class="ttname"><a href="namespace_half_float_conversion.html#aa3241cac5bd296cd04f7600e353eb1a4">HalfFloatConversion::ERoundingMode</a></div><div class="ttdeci">ERoundingMode</div><div class="ttdoc">Define half-float rounding modes.</div><div class="ttdef"><b>Definition</b> HalfFloat.h:46</div></div>
    354. 

  354. <div class="ttc" id="anamespace_half_float_conversion_html_aa3241cac5bd296cd04f7600e353eb1a4a469f1ba56ff2b3d2cb1b8f5bbba127d9"><div class="ttname"><a href="namespace_half_float_conversion.html#aa3241cac5bd296cd04f7600e353eb1a4a469f1ba56ff2b3d2cb1b8f5bbba127d9">HalfFloatConversion::ROUND_TO_NEG_INF</a></div><div class="ttdeci">@ ROUND_TO_NEG_INF</div><div class="ttdoc">Round to negative infinity.</div><div class="ttdef"><b>Definition</b> HalfFloat.h:47</div></div>
    355. 

  355. <div class="ttc" id="anamespace_half_float_conversion_html_aa3241cac5bd296cd04f7600e353eb1a4a73c8f88f26cb5185803bc16adb69fbd6"><div class="ttname"><a href="namespace_half_float_conversion.html#aa3241cac5bd296cd04f7600e353eb1a4a73c8f88f26cb5185803bc16adb69fbd6">HalfFloatConversion::ROUND_TO_POS_INF</a></div><div class="ttdeci">@ ROUND_TO_POS_INF</div><div class="ttdoc">Round to positive infinity.</div><div class="ttdef"><b>Definition</b> HalfFloat.h:48</div></div>
    356. 

  356. <div class="ttc" id="anamespace_half_float_conversion_html_aa3241cac5bd296cd04f7600e353eb1a4aaa7855ec8f43c914312cd51064ad0f64"><div class="ttname"><a href="namespace_half_float_conversion.html#aa3241cac5bd296cd04f7600e353eb1a4aaa7855ec8f43c914312cd51064ad0f64">HalfFloatConversion::ROUND_TO_NEAREST</a></div><div class="ttdeci">@ ROUND_TO_NEAREST</div><div class="ttdoc">Round to nearest value.</div><div class="ttdef"><b>Definition</b> HalfFloat.h:49</div></div>
    357. 

  357. <div class="ttc" id="anamespace_half_float_conversion_html_af81e63a2dc6f5cdfeb150d4dab3fdcbc"><div class="ttname"><a href="namespace_half_float_conversion.html#af81e63a2dc6f5cdfeb150d4dab3fdcbc">HalfFloatConversion::FromFloatFallback</a></div><div class="ttdeci">HalfFloat FromFloatFallback(float inV)</div><div class="ttdoc">Convert a float (32-bits) to a half float (16-bits), fallback version when no intrinsics available.</div><div class="ttdef"><b>Definition</b> HalfFloat.h:54</div></div>
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