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<div class="title">SDL_cpuinfo.h File Reference</div> </div>
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<div class="textblock"><code>#include "<a class="el" href="SDL__stdinc_8h_source.html">SDL_stdinc.h</a>"</code><br />
<code>#include "<a class="el" href="begin__code_8h_source.html">begin_code.h</a>"</code><br />
<code>#include "<a class="el" href="close__code_8h_source.html">close_code.h</a>"</code><br />
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<p><a href="SDL__cpuinfo_8h_source.html">Go to the source code of this file.</a></p>
<table class="memberdecls">
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Macros</h2></td></tr>
<tr class="memitem:a05d74b2aab28d821ea7f3f78372fd00e"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a05d74b2aab28d821ea7f3f78372fd00e"></a>
#define </td><td class="memItemRight" valign="bottom"><b>SDL_CACHELINE_SIZE</b>   128</td></tr>
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="func-members"></a>
Functions</h2></td></tr>
<tr class="memitem:a888cf77e53a67803402e1740a9639bd7"><td class="memItemLeft" align="right" valign="top">DECLSPEC <a class="el" href="SDL__thread_8h.html#a6a64f9be4433e4de6e2f2f548cf3c08e">int</a> SDLCALL </td><td class="memItemRight" valign="bottom"><a class="el" href="SDL__cpuinfo_8h.html#a888cf77e53a67803402e1740a9639bd7">SDL_GetCPUCount</a> (<a class="el" href="SDL__audio_8h.html#a52835ae37c4bb905b903cbaf5d04b05f">void</a>)</td></tr>
<tr class="separator:a888cf77e53a67803402e1740a9639bd7"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:aa699924d6c33d2cac8f1983c4ae4091c"><td class="memItemLeft" align="right" valign="top">DECLSPEC <a class="el" href="SDL__thread_8h.html#a6a64f9be4433e4de6e2f2f548cf3c08e">int</a> SDLCALL </td><td class="memItemRight" valign="bottom"><a class="el" href="SDL__cpuinfo_8h.html#aa699924d6c33d2cac8f1983c4ae4091c">SDL_GetCPUCacheLineSize</a> (<a class="el" href="SDL__audio_8h.html#a52835ae37c4bb905b903cbaf5d04b05f">void</a>)</td></tr>
<tr class="separator:aa699924d6c33d2cac8f1983c4ae4091c"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:afea666a39b6be7821303adcf16e83c47"><td class="memItemLeft" align="right" valign="top">DECLSPEC SDL_bool SDLCALL </td><td class="memItemRight" valign="bottom"><a class="el" href="SDL__cpuinfo_8h.html#afea666a39b6be7821303adcf16e83c47">SDL_HasRDTSC</a> (<a class="el" href="SDL__audio_8h.html#a52835ae37c4bb905b903cbaf5d04b05f">void</a>)</td></tr>
<tr class="separator:afea666a39b6be7821303adcf16e83c47"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a9bc2024dc37b1d318eb197c161f8e50b"><td class="memItemLeft" align="right" valign="top">DECLSPEC SDL_bool SDLCALL </td><td class="memItemRight" valign="bottom"><a class="el" href="SDL__cpuinfo_8h.html#a9bc2024dc37b1d318eb197c161f8e50b">SDL_HasAltiVec</a> (<a class="el" href="SDL__audio_8h.html#a52835ae37c4bb905b903cbaf5d04b05f">void</a>)</td></tr>
<tr class="separator:a9bc2024dc37b1d318eb197c161f8e50b"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:aecec2f1434aa2eb5c82f974880f5181f"><td class="memItemLeft" align="right" valign="top">DECLSPEC SDL_bool SDLCALL </td><td class="memItemRight" valign="bottom"><a class="el" href="SDL__cpuinfo_8h.html#aecec2f1434aa2eb5c82f974880f5181f">SDL_HasMMX</a> (<a class="el" href="SDL__audio_8h.html#a52835ae37c4bb905b903cbaf5d04b05f">void</a>)</td></tr>
<tr class="separator:aecec2f1434aa2eb5c82f974880f5181f"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a57efd279a93553cf43a54e3a49db6305"><td class="memItemLeft" align="right" valign="top">DECLSPEC SDL_bool SDLCALL </td><td class="memItemRight" valign="bottom"><a class="el" href="SDL__cpuinfo_8h.html#a57efd279a93553cf43a54e3a49db6305">SDL_Has3DNow</a> (<a class="el" href="SDL__audio_8h.html#a52835ae37c4bb905b903cbaf5d04b05f">void</a>)</td></tr>
<tr class="separator:a57efd279a93553cf43a54e3a49db6305"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:aed4b71a601e3a12786a5280f59c0e26d"><td class="memItemLeft" align="right" valign="top">DECLSPEC SDL_bool SDLCALL </td><td class="memItemRight" valign="bottom"><a class="el" href="SDL__cpuinfo_8h.html#aed4b71a601e3a12786a5280f59c0e26d">SDL_HasSSE</a> (<a class="el" href="SDL__audio_8h.html#a52835ae37c4bb905b903cbaf5d04b05f">void</a>)</td></tr>
<tr class="separator:aed4b71a601e3a12786a5280f59c0e26d"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:aadc66ce3d29c669f6c78ee17c592336e"><td class="memItemLeft" align="right" valign="top">DECLSPEC SDL_bool SDLCALL </td><td class="memItemRight" valign="bottom"><a class="el" href="SDL__cpuinfo_8h.html#aadc66ce3d29c669f6c78ee17c592336e">SDL_HasSSE2</a> (<a class="el" href="SDL__audio_8h.html#a52835ae37c4bb905b903cbaf5d04b05f">void</a>)</td></tr>
<tr class="separator:aadc66ce3d29c669f6c78ee17c592336e"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ab0dfbc5d529ba0b65d1fff744da69f5e"><td class="memItemLeft" align="right" valign="top">DECLSPEC SDL_bool SDLCALL </td><td class="memItemRight" valign="bottom"><a class="el" href="SDL__cpuinfo_8h.html#ab0dfbc5d529ba0b65d1fff744da69f5e">SDL_HasSSE3</a> (<a class="el" href="SDL__audio_8h.html#a52835ae37c4bb905b903cbaf5d04b05f">void</a>)</td></tr>
<tr class="separator:ab0dfbc5d529ba0b65d1fff744da69f5e"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a6719853bee3dd03b8823540705a55932"><td class="memItemLeft" align="right" valign="top">DECLSPEC SDL_bool SDLCALL </td><td class="memItemRight" valign="bottom"><a class="el" href="SDL__cpuinfo_8h.html#a6719853bee3dd03b8823540705a55932">SDL_HasSSE41</a> (<a class="el" href="SDL__audio_8h.html#a52835ae37c4bb905b903cbaf5d04b05f">void</a>)</td></tr>
<tr class="separator:a6719853bee3dd03b8823540705a55932"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a9fea35e1593bb7981cdc1da4d0b2dccb"><td class="memItemLeft" align="right" valign="top">DECLSPEC SDL_bool SDLCALL </td><td class="memItemRight" valign="bottom"><a class="el" href="SDL__cpuinfo_8h.html#a9fea35e1593bb7981cdc1da4d0b2dccb">SDL_HasSSE42</a> (<a class="el" href="SDL__audio_8h.html#a52835ae37c4bb905b903cbaf5d04b05f">void</a>)</td></tr>
<tr class="separator:a9fea35e1593bb7981cdc1da4d0b2dccb"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:aec739a6c622987314d9a22899c4ba673"><td class="memItemLeft" align="right" valign="top">DECLSPEC SDL_bool SDLCALL </td><td class="memItemRight" valign="bottom"><a class="el" href="SDL__cpuinfo_8h.html#aec739a6c622987314d9a22899c4ba673">SDL_HasAVX</a> (<a class="el" href="SDL__audio_8h.html#a52835ae37c4bb905b903cbaf5d04b05f">void</a>)</td></tr>
<tr class="separator:aec739a6c622987314d9a22899c4ba673"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:af672834675f296bed0e226113695bebd"><td class="memItemLeft" align="right" valign="top">DECLSPEC <a class="el" href="SDL__thread_8h.html#a6a64f9be4433e4de6e2f2f548cf3c08e">int</a> SDLCALL </td><td class="memItemRight" valign="bottom"><a class="el" href="SDL__cpuinfo_8h.html#af672834675f296bed0e226113695bebd">SDL_GetSystemRAM</a> (<a class="el" href="SDL__audio_8h.html#a52835ae37c4bb905b903cbaf5d04b05f">void</a>)</td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>CPU feature detection for SDL. </p>
</div><h2 class="groupheader">Function Documentation</h2>
<a class="anchor" id="aa699924d6c33d2cac8f1983c4ae4091c"></a>
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<td class="memname">DECLSPEC <a class="el" href="SDL__thread_8h.html#a6a64f9be4433e4de6e2f2f548cf3c08e">int</a> SDLCALL SDL_GetCPUCacheLineSize </td>
<td>(</td>
<td class="paramtype"><a class="el" href="SDL__audio_8h.html#a52835ae37c4bb905b903cbaf5d04b05f">void</a> </td>
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<p>This function returns the L1 cache line size of the CPU</p>
<p>This is useful for determining multi-threaded structure padding or SIMD prefetch sizes. </p>
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<td class="memname">DECLSPEC <a class="el" href="SDL__thread_8h.html#a6a64f9be4433e4de6e2f2f548cf3c08e">int</a> SDLCALL SDL_GetCPUCount </td>
<td>(</td>
<td class="paramtype"><a class="el" href="SDL__audio_8h.html#a52835ae37c4bb905b903cbaf5d04b05f">void</a> </td>
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<p>This function returns the number of CPU cores available. </p>
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<td class="memname">DECLSPEC <a class="el" href="SDL__thread_8h.html#a6a64f9be4433e4de6e2f2f548cf3c08e">int</a> SDLCALL SDL_GetSystemRAM </td>
<td>(</td>
<td class="paramtype"><a class="el" href="SDL__audio_8h.html#a52835ae37c4bb905b903cbaf5d04b05f">void</a> </td>
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<p>This function returns the amount of RAM configured in the system, in MB. </p>
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<td class="memname">DECLSPEC SDL_bool SDLCALL SDL_Has3DNow </td>
<td>(</td>
<td class="paramtype"><a class="el" href="SDL__audio_8h.html#a52835ae37c4bb905b903cbaf5d04b05f">void</a> </td>
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<p>This function returns true if the CPU has 3DNow! features. </p>
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<td class="memname">DECLSPEC SDL_bool SDLCALL SDL_HasAltiVec </td>
<td>(</td>
<td class="paramtype"><a class="el" href="SDL__audio_8h.html#a52835ae37c4bb905b903cbaf5d04b05f">void</a> </td>
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<p>This function returns true if the CPU has AltiVec features. </p>
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<td class="memname">DECLSPEC SDL_bool SDLCALL SDL_HasAVX </td>
<td>(</td>
<td class="paramtype"><a class="el" href="SDL__audio_8h.html#a52835ae37c4bb905b903cbaf5d04b05f">void</a> </td>
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<p>This function returns true if the CPU has AVX features. </p>
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<td class="memname">DECLSPEC SDL_bool SDLCALL SDL_HasMMX </td>
<td>(</td>
<td class="paramtype"><a class="el" href="SDL__audio_8h.html#a52835ae37c4bb905b903cbaf5d04b05f">void</a> </td>
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<p>This function returns true if the CPU has MMX features. </p>
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<td class="memname">DECLSPEC SDL_bool SDLCALL SDL_HasRDTSC </td>
<td>(</td>
<td class="paramtype"><a class="el" href="SDL__audio_8h.html#a52835ae37c4bb905b903cbaf5d04b05f">void</a> </td>
<td class="paramname"></td><td>)</td>
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<p>This function returns true if the CPU has the RDTSC instruction. </p>
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<td class="memname">DECLSPEC SDL_bool SDLCALL SDL_HasSSE </td>
<td>(</td>
<td class="paramtype"><a class="el" href="SDL__audio_8h.html#a52835ae37c4bb905b903cbaf5d04b05f">void</a> </td>
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<p>This function returns true if the CPU has SSE features. </p>
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<td class="memname">DECLSPEC SDL_bool SDLCALL SDL_HasSSE2 </td>
<td>(</td>
<td class="paramtype"><a class="el" href="SDL__audio_8h.html#a52835ae37c4bb905b903cbaf5d04b05f">void</a> </td>
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<p>This function returns true if the CPU has SSE2 features. </p>
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<td class="memname">DECLSPEC SDL_bool SDLCALL SDL_HasSSE3 </td>
<td>(</td>
<td class="paramtype"><a class="el" href="SDL__audio_8h.html#a52835ae37c4bb905b903cbaf5d04b05f">void</a> </td>
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<p>This function returns true if the CPU has SSE3 features. </p>
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<td class="memname">DECLSPEC SDL_bool SDLCALL SDL_HasSSE41 </td>
<td>(</td>
<td class="paramtype"><a class="el" href="SDL__audio_8h.html#a52835ae37c4bb905b903cbaf5d04b05f">void</a> </td>
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<p>This function returns true if the CPU has SSE4.1 features. </p>
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<td class="memname">DECLSPEC SDL_bool SDLCALL SDL_HasSSE42 </td>
<td>(</td>
<td class="paramtype"><a class="el" href="SDL__audio_8h.html#a52835ae37c4bb905b903cbaf5d04b05f">void</a> </td>
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<p>This function returns true if the CPU has SSE4.2 features. </p>
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