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Updated API documentation

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Christophe Riccio
2016-09-11 12:44:33 +02:00
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<div class="title">intrinsic_exponential.hpp</div> </div>
<div class="title">log_base.hpp</div> </div>
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<a href="a00049.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span>&#160;</div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span>&#160;<span class="preprocessor">#pragma once</span></div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span>&#160;</div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="a00105.html">setup.hpp</a>&quot;</span></div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span>&#160;</div>
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span>&#160;<span class="preprocessor">#if(!(GLM_ARCH &amp; GLM_ARCH_SSE2))</span></div>
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span>&#160;<span class="preprocessor"># error &quot;SSE2 instructions not supported or enabled&quot;</span></div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span>&#160;<span class="preprocessor">#else</span></div>
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span>&#160;</div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>&#160;<span class="keyword">namespace </span><a class="code" href="a00146.html">glm</a>{</div>
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span>&#160;<span class="keyword">namespace </span>detail</div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>&#160;{</div>
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span>&#160;<span class="comment">/*</span></div>
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span>&#160;<span class="comment">GLM_FUNC_QUALIFIER __m128 sse_rsqrt_nr_ss(__m128 const x)</span></div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>&#160;<span class="comment">{</span></div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>&#160;<span class="comment"> __m128 recip = _mm_rsqrt_ss( x ); // &quot;estimate&quot; opcode</span></div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>&#160;<span class="comment"> const static __m128 three = { 3, 3, 3, 3 }; // aligned consts for fast load</span></div>
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>&#160;<span class="comment"> const static __m128 half = { 0.5,0.5,0.5,0.5 };</span></div>
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>&#160;<span class="comment"> __m128 halfrecip = _mm_mul_ss( half, recip );</span></div>
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>&#160;<span class="comment"> __m128 threeminus_xrr = _mm_sub_ss( three, _mm_mul_ss( x, _mm_mul_ss ( recip, recip ) ) );</span></div>
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>&#160;<span class="comment"> return _mm_mul_ss( halfrecip, threeminus_xrr );</span></div>
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>&#160;<span class="comment">}</span></div>
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>&#160;<span class="comment"> </span></div>
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>&#160;<span class="comment">GLM_FUNC_QUALIFIER __m128 sse_normalize_fast_ps( float * RESTRICT vOut, float * RESTRICT vIn )</span></div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>&#160;<span class="comment">{</span></div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>&#160;<span class="comment"> __m128 x = _mm_load_ss(&amp;vIn[0]);</span></div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>&#160;<span class="comment"> __m128 y = _mm_load_ss(&amp;vIn[1]);</span></div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>&#160;<span class="comment"> __m128 z = _mm_load_ss(&amp;vIn[2]);</span></div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>&#160;<span class="comment"> </span></div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>&#160;<span class="comment"> const __m128 l = // compute x*x + y*y + z*z</span></div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>&#160;<span class="comment"> _mm_add_ss(</span></div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>&#160;<span class="comment"> _mm_add_ss( _mm_mul_ss(x,x),</span></div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>&#160;<span class="comment"> _mm_mul_ss(y,y)</span></div>
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>&#160;<span class="comment"> ),</span></div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>&#160;<span class="comment"> _mm_mul_ss( z, z )</span></div>
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>&#160;<span class="comment"> );</span></div>
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>&#160;<span class="comment"> </span></div>
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>&#160;<span class="comment"> </span></div>
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>&#160;<span class="comment"> const __m128 rsqt = _mm_rsqrt_nr_ss( l );</span></div>
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>&#160;<span class="comment"> _mm_store_ss( &amp;vOut[0] , _mm_mul_ss( rsqt, x ) );</span></div>
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>&#160;<span class="comment"> _mm_store_ss( &amp;vOut[1] , _mm_mul_ss( rsqt, y ) );</span></div>
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>&#160;<span class="comment"> _mm_store_ss( &amp;vOut[2] , _mm_mul_ss( rsqt, z ) );</span></div>
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>&#160;<span class="comment"> </span></div>
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>&#160;<span class="comment"> return _mm_mul_ss( l , rsqt );</span></div>
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>&#160;<span class="comment">}</span></div>
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>&#160;<span class="comment">*/</span></div>
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>&#160;}<span class="comment">//namespace detail</span></div>
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>&#160;}<span class="comment">//namespace glm</span></div>
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>&#160;</div>
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>&#160;<span class="preprocessor">#endif//GLM_ARCH</span></div>
<div class="ttc" id="a00146_html"><div class="ttname"><a href="a00146.html">glm</a></div><div class="ttdef"><b>Definition:</b> <a href="a00003_source.html#l00040">_noise.hpp:40</a></div></div>
<div class="ttc" id="a00105_html"><div class="ttname"><a href="a00105.html">setup.hpp</a></div><div class="ttdoc">OpenGL Mathematics (glm.g-truc.net) </div></div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span>&#160;<span class="preprocessor">#pragma once</span></div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span>&#160;</div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span>&#160;<span class="comment">// Dependency:</span></div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span>&#160;<span class="preprocessor">#include &quot;../glm.hpp&quot;</span></div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span>&#160;</div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span>&#160;<span class="preprocessor">#if GLM_MESSAGES == GLM_MESSAGES_ENABLED &amp;&amp; !defined(GLM_EXT_INCLUDED)</span></div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span>&#160;<span class="preprocessor"># pragma message(&quot;GLM: GLM_GTX_log_base extension included&quot;)</span></div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span>&#160;</div>
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span>&#160;<span class="keyword">namespace </span><a class="code" href="a00141.html">glm</a></div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span>&#160;{</div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span>&#160;</div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span>&#160; <span class="keyword">template</span> &lt;<span class="keyword">typename</span> genType&gt;</div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span>&#160; GLM_FUNC_DECL genType <a class="code" href="a00202.html#ga60a7b0a401da660869946b2b77c710c9">log</a>(</div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span>&#160; genType <span class="keyword">const</span> &amp; x,</div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span>&#160; genType <span class="keyword">const</span> &amp; base);</div>
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span>&#160;</div>
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span>&#160; <span class="keyword">template</span> &lt;<span class="keyword">typename</span> T, precision P, <span class="keyword">template</span> &lt;<span class="keyword">typename</span>, precision&gt; <span class="keyword">class </span>vecType&gt;</div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>&#160; GLM_FUNC_DECL vecType&lt;T, P&gt; <a class="code" href="a00202.html#ga1842004a127a9f3573764362ff639191">sign</a>(</div>
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span>&#160; vecType&lt;T, P&gt; <span class="keyword">const</span> &amp; x,</div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>&#160; vecType&lt;T, P&gt; <span class="keyword">const</span> &amp; base);</div>
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span>&#160;</div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>&#160;}<span class="comment">//namespace glm</span></div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>&#160;</div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>&#160;<span class="preprocessor">#include &quot;log_base.inl&quot;</span></div>
<div class="ttc" id="a00141_html"><div class="ttname"><a href="a00141.html">glm</a></div><div class="ttdef"><b>Definition:</b> <a href="a00003_source.html#l00011">_noise.hpp:11</a></div></div>
<div class="ttc" id="a00202_html_ga60a7b0a401da660869946b2b77c710c9"><div class="ttname"><a href="a00202.html#ga60a7b0a401da660869946b2b77c710c9">glm::log</a></div><div class="ttdeci">GLM_FUNC_DECL genType log(genType const &amp;x, genType const &amp;base)</div><div class="ttdoc">Logarithm for any base. </div></div>
<div class="ttc" id="a00202_html_ga1842004a127a9f3573764362ff639191"><div class="ttname"><a href="a00202.html#ga1842004a127a9f3573764362ff639191">glm::sign</a></div><div class="ttdeci">GLM_FUNC_DECL vecType&lt; T, P &gt; sign(vecType&lt; T, P &gt; const &amp;x, vecType&lt; T, P &gt; const &amp;base)</div><div class="ttdoc">Logarithm for any base. </div></div>
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