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    112. 

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    113. 

  113. <div class="title">Pooling Functions<div class="ingroups"><a class="el" href="group__groupNN.html">Neural Network Functions</a></div></div>  </div>
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  115. <div class="contents">
    116. 

  116. <table class="memberdecls">
    117. 

  117. <tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="func-members"></a>
    118. 

  118. Functions</h2></td></tr>
    119. 

  119. <tr class="memitem:gaeda2a7c2689d698398fb85278b7d940b"><td class="memItemLeft" align="right" valign="top">arm_status&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__Pooling.html#gaeda2a7c2689d698398fb85278b7d940b">arm_avgpool_s8</a> (const int dim_src_height, const int dim_src_width, const int dim_dst_height, const int dim_dst_width, const int stride_height, const int stride_width, const int dim_kernel_height, const int dim_kernel_width, const int padding_height, const int padding_width, const int act_min, const int act_max, const int ch_src, int8_t *src, int16_t *bufferA, int8_t *dst)</td></tr>
    120. 

  120. <tr class="memdesc:gaeda2a7c2689d698398fb85278b7d940b"><td class="mdescLeft">&#160;</td><td class="mdescRight">s8 average pooling function  <a href="#gaeda2a7c2689d698398fb85278b7d940b">More...</a><br/></td></tr>
    121. 

  121. <tr class="separator:gaeda2a7c2689d698398fb85278b7d940b"><td class="memSeparator" colspan="2">&#160;</td></tr>
    122. 

  122. <tr class="memitem:gaca9a9dfa088bec0c4ac16f14518cf6a3"><td class="memItemLeft" align="right" valign="top">int32_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__Pooling.html#gaca9a9dfa088bec0c4ac16f14518cf6a3">arm_avgpool_s8_get_buffer_size</a> (const int dim_dst_width, const int ch_src)</td></tr>
    123. 

  123. <tr class="memdesc:gaca9a9dfa088bec0c4ac16f14518cf6a3"><td class="mdescLeft">&#160;</td><td class="mdescRight">Get the required buffer size for S8 average pooling function.  <a href="#gaca9a9dfa088bec0c4ac16f14518cf6a3">More...</a><br/></td></tr>
    124. 

  124. <tr class="separator:gaca9a9dfa088bec0c4ac16f14518cf6a3"><td class="memSeparator" colspan="2">&#160;</td></tr>
    125. 

  125. <tr class="memitem:ga9ba8703e0f24059167f445c978026764"><td class="memItemLeft" align="right" valign="top">arm_status&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__Pooling.html#ga9ba8703e0f24059167f445c978026764">arm_max_pool_s8</a> (const uint16_t input_y, const uint16_t input_x, const uint16_t output_y, const uint16_t output_x, const uint16_t stride_y, const uint16_t stride_x, const uint16_t kernel_y, const uint16_t kernel_x, const uint16_t pad_y, const uint16_t pad_x, const int8_t act_min, const int8_t act_max, const uint16_t channel_in, int8_t *input, int16_t *tmp_buffer, int8_t *output)</td></tr>
    126. 

  126. <tr class="memdesc:ga9ba8703e0f24059167f445c978026764"><td class="mdescLeft">&#160;</td><td class="mdescRight">s8 pure C max pooling function  <a href="#ga9ba8703e0f24059167f445c978026764">More...</a><br/></td></tr>
    127. 

  127. <tr class="separator:ga9ba8703e0f24059167f445c978026764"><td class="memSeparator" colspan="2">&#160;</td></tr>
    128. 

  128. <tr class="memitem:ga692bad3854c43c5b95c48de461ea9100"><td class="memItemLeft" align="right" valign="top">arm_status&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__Pooling.html#ga692bad3854c43c5b95c48de461ea9100">arm_max_pool_s8_opt</a> (const uint16_t input_y, const uint16_t input_x, const uint16_t output_y, const uint16_t output_x, const uint16_t stride_y, const uint16_t stride_x, const uint16_t kernel_y, const uint16_t kernel_x, const uint16_t pad_y, const uint16_t pad_x, const int8_t act_min, const int8_t act_max, const uint16_t depth, int8_t *src, int16_t *tmp_buffer, int8_t *dst)</td></tr>
    129. 

  129. <tr class="memdesc:ga692bad3854c43c5b95c48de461ea9100"><td class="mdescLeft">&#160;</td><td class="mdescRight">s8 DSP optimized max pooling function  <a href="#ga692bad3854c43c5b95c48de461ea9100">More...</a><br/></td></tr>
    130. 

  130. <tr class="separator:ga692bad3854c43c5b95c48de461ea9100"><td class="memSeparator" colspan="2">&#160;</td></tr>
    131. 

  131. <tr class="memitem:ga99afcdcc61eaf429ab3ee823702e44ce"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__Pooling.html#ga99afcdcc61eaf429ab3ee823702e44ce">arm_maxpool_q7_HWC</a> (q7_t *Im_in, const uint16_t dim_im_in, const uint16_t ch_im_in, const uint16_t dim_kernel, const uint16_t padding, const uint16_t stride, const uint16_t dim_im_out, q7_t *bufferA, q7_t *Im_out)</td></tr>
    132. 

  132. <tr class="memdesc:ga99afcdcc61eaf429ab3ee823702e44ce"><td class="mdescLeft">&#160;</td><td class="mdescRight">Q7 max pooling function.  <a href="#ga99afcdcc61eaf429ab3ee823702e44ce">More...</a><br/></td></tr>
    133. 

  133. <tr class="separator:ga99afcdcc61eaf429ab3ee823702e44ce"><td class="memSeparator" colspan="2">&#160;</td></tr>
    134. 

  134. <tr class="memitem:gae4a7b07f97ec4313524c9fb9fbcb1f6a"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__Pooling.html#gae4a7b07f97ec4313524c9fb9fbcb1f6a">arm_avepool_q7_HWC</a> (q7_t *Im_in, const uint16_t dim_im_in, const uint16_t ch_im_in, const uint16_t dim_kernel, const uint16_t padding, const uint16_t stride, const uint16_t dim_im_out, q7_t *bufferA, q7_t *Im_out)</td></tr>
    135. 

  135. <tr class="memdesc:gae4a7b07f97ec4313524c9fb9fbcb1f6a"><td class="mdescLeft">&#160;</td><td class="mdescRight">Q7 average pooling function.  <a href="#gae4a7b07f97ec4313524c9fb9fbcb1f6a">More...</a><br/></td></tr>
    136. 

  136. <tr class="separator:gae4a7b07f97ec4313524c9fb9fbcb1f6a"><td class="memSeparator" colspan="2">&#160;</td></tr>
    137. 

  137. </table>
    138. 

  138. <a name="details" id="details"></a><h2 class="groupheader">Description</h2>
    139. 

  139. <p>Perform pooling functions, including max pooling and average pooling </p>
    140. 

  140. <h2 class="groupheader">Function Documentation</h2>
    141. 

  141. <a class="anchor" id="gae4a7b07f97ec4313524c9fb9fbcb1f6a"></a>
    142. 

  142. <div class="memitem">
    143. 

  143. <div class="memproto">
    144. 

  144.       <table class="memname">
    145. 

  145.         <tr>
    146. 

  146.           <td class="memname">void arm_avepool_q7_HWC </td>
    147. 

  147.           <td>(</td>
    148. 

  148.           <td class="paramtype">q7_t *&#160;</td>
    149. 

  149.           <td class="paramname"><em>Im_in</em>, </td>
    150. 

  150.         </tr>
    151. 

  151.         <tr>
    152. 

  152.           <td class="paramkey"></td>
    153. 

  153.           <td></td>
    154. 

  154.           <td class="paramtype">const uint16_t&#160;</td>
    155. 

  155.           <td class="paramname"><em>dim_im_in</em>, </td>
    156. 

  156.         </tr>
    157. 

  157.         <tr>
    158. 

  158.           <td class="paramkey"></td>
    159. 

  159.           <td></td>
    160. 

  160.           <td class="paramtype">const uint16_t&#160;</td>
    161. 

  161.           <td class="paramname"><em>ch_im_in</em>, </td>
    162. 

  162.         </tr>
    163. 

  163.         <tr>
    164. 

  164.           <td class="paramkey"></td>
    165. 

  165.           <td></td>
    166. 

  166.           <td class="paramtype">const uint16_t&#160;</td>
    167. 

  167.           <td class="paramname"><em>dim_kernel</em>, </td>
    168. 

  168.         </tr>
    169. 

  169.         <tr>
    170. 

  170.           <td class="paramkey"></td>
    171. 

  171.           <td></td>
    172. 

  172.           <td class="paramtype">const uint16_t&#160;</td>
    173. 

  173.           <td class="paramname"><em>padding</em>, </td>
    174. 

  174.         </tr>
    175. 

  175.         <tr>
    176. 

  176.           <td class="paramkey"></td>
    177. 

  177.           <td></td>
    178. 

  178.           <td class="paramtype">const uint16_t&#160;</td>
    179. 

  179.           <td class="paramname"><em>stride</em>, </td>
    180. 

  180.         </tr>
    181. 

  181.         <tr>
    182. 

  182.           <td class="paramkey"></td>
    183. 

  183.           <td></td>
    184. 

  184.           <td class="paramtype">const uint16_t&#160;</td>
    185. 

  185.           <td class="paramname"><em>dim_im_out</em>, </td>
    186. 

  186.         </tr>
    187. 

  187.         <tr>
    188. 

  188.           <td class="paramkey"></td>
    189. 

  189.           <td></td>
    190. 

  190.           <td class="paramtype">q7_t *&#160;</td>
    191. 

  191.           <td class="paramname"><em>bufferA</em>, </td>
    192. 

  192.         </tr>
    193. 

  193.         <tr>
    194. 

  194.           <td class="paramkey"></td>
    195. 

  195.           <td></td>
    196. 

  196.           <td class="paramtype">q7_t *&#160;</td>
    197. 

  197.           <td class="paramname"><em>Im_out</em>&#160;</td>
    198. 

  198.         </tr>
    199. 

  199.         <tr>
    200. 

  200.           <td></td>
    201. 

  201.           <td>)</td>
    202. 

  202.           <td></td><td></td>
    203. 

  203.         </tr>
    204. 

  204.       </table>
    205. 

  205. </div><div class="memdoc">
    206. 

  206. <dl class="params"><dt>Parameters</dt><dd>
    207. 

  207.   <table class="params">
    208. 

  208.     <tr><td class="paramdir">[in,out]</td><td class="paramname">Im_in</td><td>pointer to input tensor </td></tr>
    209. 

  209.     <tr><td class="paramdir">[in]</td><td class="paramname">dim_im_in</td><td>input tensor dimention </td></tr>
    210. 

  210.     <tr><td class="paramdir">[in]</td><td class="paramname">ch_im_in</td><td>number of input tensor channels </td></tr>
    211. 

  211.     <tr><td class="paramdir">[in]</td><td class="paramname">dim_kernel</td><td>filter kernel size </td></tr>
    212. 

  212.     <tr><td class="paramdir">[in]</td><td class="paramname">padding</td><td>padding sizes </td></tr>
    213. 

  213.     <tr><td class="paramdir">[in]</td><td class="paramname">stride</td><td>convolution stride </td></tr>
    214. 

  214.     <tr><td class="paramdir">[in]</td><td class="paramname">dim_im_out</td><td>output tensor dimension </td></tr>
    215. 

  215.     <tr><td class="paramdir">[in,out]</td><td class="paramname">bufferA</td><td>pointer to buffer space for input </td></tr>
    216. 

  216.     <tr><td class="paramdir">[in,out]</td><td class="paramname">Im_out</td><td>pointer to output tensor</td></tr>
    217. 

  217.   </table>
    218. 

  218.   </dd>
    219. 

  219. </dl>
    220. 

  220. <p><b>Buffer size:</b></p>
    221. 

  221. <p>bufferA size: 2*dim_im_out*ch_im_in</p>
    222. 

  222. <p>The pooling function is implemented as split x-pooling then y-pooling.</p>
    223. 

  223. <p>This pooling function is input-destructive. Input data is undefined after calling this function. </p>
    224. 

  224. 

  225. <p>References <a class="el" href="group__nndata__convert.html#gae349de4dba8d253c89d45794ccf05680">arm_q7_to_q15_no_shift()</a>.</p>
    226. 

  226. 

  227. </div>
    228. 

  228. </div>
    229. 

  229. <a class="anchor" id="gaeda2a7c2689d698398fb85278b7d940b"></a>
    230. 

  230. <div class="memitem">
    231. 

  231. <div class="memproto">
    232. 

  232.       <table class="memname">
    233. 

  233.         <tr>
    234. 

  234.           <td class="memname">arm_status arm_avgpool_s8 </td>
    235. 

  235.           <td>(</td>
    236. 

  236.           <td class="paramtype">const int&#160;</td>
    237. 

  237.           <td class="paramname"><em>dim_src_height</em>, </td>
    238. 

  238.         </tr>
    239. 

  239.         <tr>
    240. 

  240.           <td class="paramkey"></td>
    241. 

  241.           <td></td>
    242. 

  242.           <td class="paramtype">const int&#160;</td>
    243. 

  243.           <td class="paramname"><em>dim_src_width</em>, </td>
    244. 

  244.         </tr>
    245. 

  245.         <tr>
    246. 

  246.           <td class="paramkey"></td>
    247. 

  247.           <td></td>
    248. 

  248.           <td class="paramtype">const int&#160;</td>
    249. 

  249.           <td class="paramname"><em>dim_dst_height</em>, </td>
    250. 

  250.         </tr>
    251. 

  251.         <tr>
    252. 

  252.           <td class="paramkey"></td>
    253. 

  253.           <td></td>
    254. 

  254.           <td class="paramtype">const int&#160;</td>
    255. 

  255.           <td class="paramname"><em>dim_dst_width</em>, </td>
    256. 

  256.         </tr>
    257. 

  257.         <tr>
    258. 

  258.           <td class="paramkey"></td>
    259. 

  259.           <td></td>
    260. 

  260.           <td class="paramtype">const int&#160;</td>
    261. 

  261.           <td class="paramname"><em>stride_height</em>, </td>
    262. 

  262.         </tr>
    263. 

  263.         <tr>
    264. 

  264.           <td class="paramkey"></td>
    265. 

  265.           <td></td>
    266. 

  266.           <td class="paramtype">const int&#160;</td>
    267. 

  267.           <td class="paramname"><em>stride_width</em>, </td>
    268. 

  268.         </tr>
    269. 

  269.         <tr>
    270. 

  270.           <td class="paramkey"></td>
    271. 

  271.           <td></td>
    272. 

  272.           <td class="paramtype">const int&#160;</td>
    273. 

  273.           <td class="paramname"><em>dim_kernel_height</em>, </td>
    274. 

  274.         </tr>
    275. 

  275.         <tr>
    276. 

  276.           <td class="paramkey"></td>
    277. 

  277.           <td></td>
    278. 

  278.           <td class="paramtype">const int&#160;</td>
    279. 

  279.           <td class="paramname"><em>dim_kernel_width</em>, </td>
    280. 

  280.         </tr>
    281. 

  281.         <tr>
    282. 

  282.           <td class="paramkey"></td>
    283. 

  283.           <td></td>
    284. 

  284.           <td class="paramtype">const int&#160;</td>
    285. 

  285.           <td class="paramname"><em>padding_height</em>, </td>
    286. 

  286.         </tr>
    287. 

  287.         <tr>
    288. 

  288.           <td class="paramkey"></td>
    289. 

  289.           <td></td>
    290. 

  290.           <td class="paramtype">const int&#160;</td>
    291. 

  291.           <td class="paramname"><em>padding_width</em>, </td>
    292. 

  292.         </tr>
    293. 

  293.         <tr>
    294. 

  294.           <td class="paramkey"></td>
    295. 

  295.           <td></td>
    296. 

  296.           <td class="paramtype">const int&#160;</td>
    297. 

  297.           <td class="paramname"><em>act_min</em>, </td>
    298. 

  298.         </tr>
    299. 

  299.         <tr>
    300. 

  300.           <td class="paramkey"></td>
    301. 

  301.           <td></td>
    302. 

  302.           <td class="paramtype">const int&#160;</td>
    303. 

  303.           <td class="paramname"><em>act_max</em>, </td>
    304. 

  304.         </tr>
    305. 

  305.         <tr>
    306. 

  306.           <td class="paramkey"></td>
    307. 

  307.           <td></td>
    308. 

  308.           <td class="paramtype">const int&#160;</td>
    309. 

  309.           <td class="paramname"><em>ch_src</em>, </td>
    310. 

  310.         </tr>
    311. 

  311.         <tr>
    312. 

  312.           <td class="paramkey"></td>
    313. 

  313.           <td></td>
    314. 

  314.           <td class="paramtype">int8_t *&#160;</td>
    315. 

  315.           <td class="paramname"><em>src</em>, </td>
    316. 

  316.         </tr>
    317. 

  317.         <tr>
    318. 

  318.           <td class="paramkey"></td>
    319. 

  319.           <td></td>
    320. 

  320.           <td class="paramtype">int16_t *&#160;</td>
    321. 

  321.           <td class="paramname"><em>bufferA</em>, </td>
    322. 

  322.         </tr>
    323. 

  323.         <tr>
    324. 

  324.           <td class="paramkey"></td>
    325. 

  325.           <td></td>
    326. 

  326.           <td class="paramtype">int8_t *&#160;</td>
    327. 

  327.           <td class="paramname"><em>dst</em>&#160;</td>
    328. 

  328.         </tr>
    329. 

  329.         <tr>
    330. 

  330.           <td></td>
    331. 

  331.           <td>)</td>
    332. 

  332.           <td></td><td></td>
    333. 

  333.         </tr>
    334. 

  334.       </table>
    335. 

  335. </div><div class="memdoc">
    336. 

  336. <dl class="params"><dt>Parameters</dt><dd>
    337. 

  337.   <table class="params">
    338. 

  338.     <tr><td class="paramdir">[in]</td><td class="paramname">dim_src_height</td><td>input tensor dimension </td></tr>
    339. 

  339.     <tr><td class="paramdir">[in]</td><td class="paramname">dim_src_width</td><td>input tensor dimension </td></tr>
    340. 

  340.     <tr><td class="paramdir">[in]</td><td class="paramname">dim_dst_height</td><td>output tensor dimension </td></tr>
    341. 

  341.     <tr><td class="paramdir">[in]</td><td class="paramname">dim_dst_width</td><td>output tensor dimension </td></tr>
    342. 

  342.     <tr><td class="paramdir">[in]</td><td class="paramname">stride_height</td><td>stride along y </td></tr>
    343. 

  343.     <tr><td class="paramdir">[in]</td><td class="paramname">stride_width</td><td>stride along x </td></tr>
    344. 

  344.     <tr><td class="paramdir">[in]</td><td class="paramname">dim_kernel_height</td><td>filter kernel size along y </td></tr>
    345. 

  345.     <tr><td class="paramdir">[in]</td><td class="paramname">dim_kernel_width</td><td>filter kernel size along x </td></tr>
    346. 

  346.     <tr><td class="paramdir">[in]</td><td class="paramname">padding_height</td><td>padding size along y </td></tr>
    347. 

  347.     <tr><td class="paramdir">[in]</td><td class="paramname">padding_width</td><td>padding size along x </td></tr>
    348. 

  348.     <tr><td class="paramdir">[in]</td><td class="paramname">act_min</td><td>Min clamping </td></tr>
    349. 

  349.     <tr><td class="paramdir">[in]</td><td class="paramname">act_max</td><td>Max clamping </td></tr>
    350. 

  350.     <tr><td class="paramdir">[in]</td><td class="paramname">ch_src</td><td>number of input tensor channels </td></tr>
    351. 

  351.     <tr><td class="paramdir">[in,out]</td><td class="paramname">src</td><td>pointer to input tensor </td></tr>
    352. 

  352.     <tr><td class="paramdir">[in]</td><td class="paramname">bufferA</td><td>temporary buffer used for optimization and is necessary when ARM_MATH_DSP is defined. Required space: (ch_src * dim_dst_width) * sizeof(q15_t) bytes Use <a class="el" href="group__Pooling.html#gaca9a9dfa088bec0c4ac16f14518cf6a3" title="Get the required buffer size for S8 average pooling function. ">arm_avgpool_s8_get_buffer_size()</a> to get the size </td></tr>
    353. 

  353.     <tr><td class="paramdir">[in,out]</td><td class="paramname">dst</td><td>pointer to output tensor </td></tr>
    354. 

  354.   </table>
    355. 

  355.   </dd>
    356. 

  356. </dl>
    357. 

  357. <dl class="section return"><dt>Returns</dt><dd>The function returns one of the following <code>ARM_MATH_SIZE_MISMATCH</code> - Unsupported dimension of tensors <code>ARM_MATH_SUCCESS</code> - Successful operation <code>ARM_MATH_ARGUMENT_ERROR</code> - Implementation not available</dd></dl>
    358. 

  358. <ul>
    359. 

  359. <li>Supported Framework: TensorFlow Lite </li>
    360. 

  360. </ul>
    361. 

  361. 

  362. <p>References <a class="el" href="arm__nnsupportfunctions_8h.html#ad935f1ff1a50822e317bdb321ce991ad">MAX</a>, and <a class="el" href="arm__nnsupportfunctions_8h.html#adcd021ac91d43a62b2cdecf9a5b971a7">MIN</a>.</p>
    363. 

  363. 

  364. </div>
    365. 

  365. </div>
    366. 

  366. <a class="anchor" id="gaca9a9dfa088bec0c4ac16f14518cf6a3"></a>
    367. 

  367. <div class="memitem">
    368. 

  368. <div class="memproto">
    369. 

  369.       <table class="memname">
    370. 

  370.         <tr>
    371. 

  371.           <td class="memname">int32_t arm_avgpool_s8_get_buffer_size </td>
    372. 

  372.           <td>(</td>
    373. 

  373.           <td class="paramtype">const int&#160;</td>
    374. 

  374.           <td class="paramname"><em>dim_dst_width</em>, </td>
    375. 

  375.         </tr>
    376. 

  376.         <tr>
    377. 

  377.           <td class="paramkey"></td>
    378. 

  378.           <td></td>
    379. 

  379.           <td class="paramtype">const int&#160;</td>
    380. 

  380.           <td class="paramname"><em>ch_src</em>&#160;</td>
    381. 

  381.         </tr>
    382. 

  382.         <tr>
    383. 

  383.           <td></td>
    384. 

  384.           <td>)</td>
    385. 

  385.           <td></td><td></td>
    386. 

  386.         </tr>
    387. 

  387.       </table>
    388. 

  388. </div><div class="memdoc">
    389. 

  389. <dl class="params"><dt>Parameters</dt><dd>
    390. 

  390.   <table class="params">
    391. 

  391.     <tr><td class="paramdir">[in]</td><td class="paramname">dim_dst_width</td><td>output tensor dimension </td></tr>
    392. 

  392.     <tr><td class="paramdir">[in]</td><td class="paramname">ch_src</td><td>number of input tensor channels </td></tr>
    393. 

  393.   </table>
    394. 

  394.   </dd>
    395. 

  395. </dl>
    396. 

  396. <dl class="section return"><dt>Returns</dt><dd>The function returns required buffer size </dd></dl>
    397. 

  397. 

  398. </div>
    399. 

  399. </div>
    400. 

  400. <a class="anchor" id="ga9ba8703e0f24059167f445c978026764"></a>
    401. 

  401. <div class="memitem">
    402. 

  402. <div class="memproto">
    403. 

  403.       <table class="memname">
    404. 

  404.         <tr>
    405. 

  405.           <td class="memname">arm_status arm_max_pool_s8 </td>
    406. 

  406.           <td>(</td>
    407. 

  407.           <td class="paramtype">const uint16_t&#160;</td>
    408. 

  408.           <td class="paramname"><em>input_y</em>, </td>
    409. 

  409.         </tr>
    410. 

  410.         <tr>
    411. 

  411.           <td class="paramkey"></td>
    412. 

  412.           <td></td>
    413. 

  413.           <td class="paramtype">const uint16_t&#160;</td>
    414. 

  414.           <td class="paramname"><em>input_x</em>, </td>
    415. 

  415.         </tr>
    416. 

  416.         <tr>
    417. 

  417.           <td class="paramkey"></td>
    418. 

  418.           <td></td>
    419. 

  419.           <td class="paramtype">const uint16_t&#160;</td>
    420. 

  420.           <td class="paramname"><em>output_y</em>, </td>
    421. 

  421.         </tr>
    422. 

  422.         <tr>
    423. 

  423.           <td class="paramkey"></td>
    424. 

  424.           <td></td>
    425. 

  425.           <td class="paramtype">const uint16_t&#160;</td>
    426. 

  426.           <td class="paramname"><em>output_x</em>, </td>
    427. 

  427.         </tr>
    428. 

  428.         <tr>
    429. 

  429.           <td class="paramkey"></td>
    430. 

  430.           <td></td>
    431. 

  431.           <td class="paramtype">const uint16_t&#160;</td>
    432. 

  432.           <td class="paramname"><em>stride_y</em>, </td>
    433. 

  433.         </tr>
    434. 

  434.         <tr>
    435. 

  435.           <td class="paramkey"></td>
    436. 

  436.           <td></td>
    437. 

  437.           <td class="paramtype">const uint16_t&#160;</td>
    438. 

  438.           <td class="paramname"><em>stride_x</em>, </td>
    439. 

  439.         </tr>
    440. 

  440.         <tr>
    441. 

  441.           <td class="paramkey"></td>
    442. 

  442.           <td></td>
    443. 

  443.           <td class="paramtype">const uint16_t&#160;</td>
    444. 

  444.           <td class="paramname"><em>kernel_y</em>, </td>
    445. 

  445.         </tr>
    446. 

  446.         <tr>
    447. 

  447.           <td class="paramkey"></td>
    448. 

  448.           <td></td>
    449. 

  449.           <td class="paramtype">const uint16_t&#160;</td>
    450. 

  450.           <td class="paramname"><em>kernel_x</em>, </td>
    451. 

  451.         </tr>
    452. 

  452.         <tr>
    453. 

  453.           <td class="paramkey"></td>
    454. 

  454.           <td></td>
    455. 

  455.           <td class="paramtype">const uint16_t&#160;</td>
    456. 

  456.           <td class="paramname"><em>pad_y</em>, </td>
    457. 

  457.         </tr>
    458. 

  458.         <tr>
    459. 

  459.           <td class="paramkey"></td>
    460. 

  460.           <td></td>
    461. 

  461.           <td class="paramtype">const uint16_t&#160;</td>
    462. 

  462.           <td class="paramname"><em>pad_x</em>, </td>
    463. 

  463.         </tr>
    464. 

  464.         <tr>
    465. 

  465.           <td class="paramkey"></td>
    466. 

  466.           <td></td>
    467. 

  467.           <td class="paramtype">const int8_t&#160;</td>
    468. 

  468.           <td class="paramname"><em>act_min</em>, </td>
    469. 

  469.         </tr>
    470. 

  470.         <tr>
    471. 

  471.           <td class="paramkey"></td>
    472. 

  472.           <td></td>
    473. 

  473.           <td class="paramtype">const int8_t&#160;</td>
    474. 

  474.           <td class="paramname"><em>act_max</em>, </td>
    475. 

  475.         </tr>
    476. 

  476.         <tr>
    477. 

  477.           <td class="paramkey"></td>
    478. 

  478.           <td></td>
    479. 

  479.           <td class="paramtype">const uint16_t&#160;</td>
    480. 

  480.           <td class="paramname"><em>channel_in</em>, </td>
    481. 

  481.         </tr>
    482. 

  482.         <tr>
    483. 

  483.           <td class="paramkey"></td>
    484. 

  484.           <td></td>
    485. 

  485.           <td class="paramtype">int8_t *&#160;</td>
    486. 

  486.           <td class="paramname"><em>input</em>, </td>
    487. 

  487.         </tr>
    488. 

  488.         <tr>
    489. 

  489.           <td class="paramkey"></td>
    490. 

  490.           <td></td>
    491. 

  491.           <td class="paramtype">int16_t *&#160;</td>
    492. 

  492.           <td class="paramname"><em>tmp_buffer</em>, </td>
    493. 

  493.         </tr>
    494. 

  494.         <tr>
    495. 

  495.           <td class="paramkey"></td>
    496. 

  496.           <td></td>
    497. 

  497.           <td class="paramtype">int8_t *&#160;</td>
    498. 

  498.           <td class="paramname"><em>output</em>&#160;</td>
    499. 

  499.         </tr>
    500. 

  500.         <tr>
    501. 

  501.           <td></td>
    502. 

  502.           <td>)</td>
    503. 

  503.           <td></td><td></td>
    504. 

  504.         </tr>
    505. 

  505.       </table>
    506. 

  506. </div><div class="memdoc">
    507. 

  507. <dl class="params"><dt>Parameters</dt><dd>
    508. 

  508.   <table class="params">
    509. 

  509.     <tr><td class="paramdir">[in]</td><td class="paramname">input_y</td><td>input tensor dimension along y </td></tr>
    510. 

  510.     <tr><td class="paramdir">[in]</td><td class="paramname">input_x</td><td>input tensor dimension along x </td></tr>
    511. 

  511.     <tr><td class="paramdir">[in]</td><td class="paramname">output_y</td><td>output tensor dimension along y </td></tr>
    512. 

  512.     <tr><td class="paramdir">[in]</td><td class="paramname">output_x</td><td>output tensor dimension along x </td></tr>
    513. 

  513.     <tr><td class="paramdir">[in]</td><td class="paramname">stride_y</td><td>stride along y </td></tr>
    514. 

  514.     <tr><td class="paramdir">[in]</td><td class="paramname">stride_x</td><td>stride along x </td></tr>
    515. 

  515.     <tr><td class="paramdir">[in]</td><td class="paramname">kernel_y</td><td>filter kernel size along y </td></tr>
    516. 

  516.     <tr><td class="paramdir">[in]</td><td class="paramname">kernel_x</td><td>filter kernel size along x </td></tr>
    517. 

  517.     <tr><td class="paramdir">[in]</td><td class="paramname">pad_y</td><td>padding size along y </td></tr>
    518. 

  518.     <tr><td class="paramdir">[in]</td><td class="paramname">pad_x</td><td>padding size along x </td></tr>
    519. 

  519.     <tr><td class="paramdir">[in]</td><td class="paramname">act_min</td><td>Activation min. Lower limit to clamp output to. Range: int8 </td></tr>
    520. 

  520.     <tr><td class="paramdir">[in]</td><td class="paramname">act_max</td><td>Activation max. Upper limit to clamp output to. Range: int8 </td></tr>
    521. 

  521.     <tr><td class="paramdir">[in]</td><td class="paramname">channel_in</td><td>number of input channels </td></tr>
    522. 

  522.     <tr><td class="paramdir">[in]</td><td class="paramname">input</td><td>pointer to input tensor </td></tr>
    523. 

  523.     <tr><td class="paramdir">[in]</td><td class="paramname">tmp_buffer</td><td>Not used. </td></tr>
    524. 

  524.     <tr><td class="paramdir">[in,out]</td><td class="paramname">output</td><td>pointer to output tensor </td></tr>
    525. 

  525.   </table>
    526. 

  526.   </dd>
    527. 

  527. </dl>
    528. 

  528. <dl class="section return"><dt>Returns</dt><dd>The function returns one of the following <code>ARM_MATH_SIZE_MISMATCH</code> - Unsupported dimension of tensors <code>ARM_MATH_SUCCESS</code> - Successful operation <code>ARM_MATH_ARGUMENT_ERROR</code> - Implementation not available</dd></dl>
    529. 

  529. <ul>
    530. 

  530. <li>This basic implementation is recommended when number of channels is less than 4 and/or dimensions are small. </li>
    531. 

  531. </ul>
    532. 

  532. 

  533. <p>References <a class="el" href="arm__nnsupportfunctions_8h.html#ad935f1ff1a50822e317bdb321ce991ad">MAX</a>, and <a class="el" href="arm__nnsupportfunctions_8h.html#adcd021ac91d43a62b2cdecf9a5b971a7">MIN</a>.</p>
    534. 

  534. 

  535. <p>Referenced by <a class="el" href="group__Pooling.html#ga692bad3854c43c5b95c48de461ea9100">arm_max_pool_s8_opt()</a>.</p>
    536. 

  536. 

  537. </div>
    538. 

  538. </div>
    539. 

  539. <a class="anchor" id="ga692bad3854c43c5b95c48de461ea9100"></a>
    540. 

  540. <div class="memitem">
    541. 

  541. <div class="memproto">
    542. 

  542.       <table class="memname">
    543. 

  543.         <tr>
    544. 

  544.           <td class="memname">arm_status arm_max_pool_s8_opt </td>
    545. 

  545.           <td>(</td>
    546. 

  546.           <td class="paramtype">const uint16_t&#160;</td>
    547. 

  547.           <td class="paramname"><em>input_y</em>, </td>
    548. 

  548.         </tr>
    549. 

  549.         <tr>
    550. 

  550.           <td class="paramkey"></td>
    551. 

  551.           <td></td>
    552. 

  552.           <td class="paramtype">const uint16_t&#160;</td>
    553. 

  553.           <td class="paramname"><em>input_x</em>, </td>
    554. 

  554.         </tr>
    555. 

  555.         <tr>
    556. 

  556.           <td class="paramkey"></td>
    557. 

  557.           <td></td>
    558. 

  558.           <td class="paramtype">const uint16_t&#160;</td>
    559. 

  559.           <td class="paramname"><em>output_y</em>, </td>
    560. 

  560.         </tr>
    561. 

  561.         <tr>
    562. 

  562.           <td class="paramkey"></td>
    563. 

  563.           <td></td>
    564. 

  564.           <td class="paramtype">const uint16_t&#160;</td>
    565. 

  565.           <td class="paramname"><em>output_x</em>, </td>
    566. 

  566.         </tr>
    567. 

  567.         <tr>
    568. 

  568.           <td class="paramkey"></td>
    569. 

  569.           <td></td>
    570. 

  570.           <td class="paramtype">const uint16_t&#160;</td>
    571. 

  571.           <td class="paramname"><em>stride_y</em>, </td>
    572. 

  572.         </tr>
    573. 

  573.         <tr>
    574. 

  574.           <td class="paramkey"></td>
    575. 

  575.           <td></td>
    576. 

  576.           <td class="paramtype">const uint16_t&#160;</td>
    577. 

  577.           <td class="paramname"><em>stride_x</em>, </td>
    578. 

  578.         </tr>
    579. 

  579.         <tr>
    580. 

  580.           <td class="paramkey"></td>
    581. 

  581.           <td></td>
    582. 

  582.           <td class="paramtype">const uint16_t&#160;</td>
    583. 

  583.           <td class="paramname"><em>kernel_y</em>, </td>
    584. 

  584.         </tr>
    585. 

  585.         <tr>
    586. 

  586.           <td class="paramkey"></td>
    587. 

  587.           <td></td>
    588. 

  588.           <td class="paramtype">const uint16_t&#160;</td>
    589. 

  589.           <td class="paramname"><em>kernel_x</em>, </td>
    590. 

  590.         </tr>
    591. 

  591.         <tr>
    592. 

  592.           <td class="paramkey"></td>
    593. 

  593.           <td></td>
    594. 

  594.           <td class="paramtype">const uint16_t&#160;</td>
    595. 

  595.           <td class="paramname"><em>pad_y</em>, </td>
    596. 

  596.         </tr>
    597. 

  597.         <tr>
    598. 

  598.           <td class="paramkey"></td>
    599. 

  599.           <td></td>
    600. 

  600.           <td class="paramtype">const uint16_t&#160;</td>
    601. 

  601.           <td class="paramname"><em>pad_x</em>, </td>
    602. 

  602.         </tr>
    603. 

  603.         <tr>
    604. 

  604.           <td class="paramkey"></td>
    605. 

  605.           <td></td>
    606. 

  606.           <td class="paramtype">const int8_t&#160;</td>
    607. 

  607.           <td class="paramname"><em>act_min</em>, </td>
    608. 

  608.         </tr>
    609. 

  609.         <tr>
    610. 

  610.           <td class="paramkey"></td>
    611. 

  611.           <td></td>
    612. 

  612.           <td class="paramtype">const int8_t&#160;</td>
    613. 

  613.           <td class="paramname"><em>act_max</em>, </td>
    614. 

  614.         </tr>
    615. 

  615.         <tr>
    616. 

  616.           <td class="paramkey"></td>
    617. 

  617.           <td></td>
    618. 

  618.           <td class="paramtype">const uint16_t&#160;</td>
    619. 

  619.           <td class="paramname"><em>depth</em>, </td>
    620. 

  620.         </tr>
    621. 

  621.         <tr>
    622. 

  622.           <td class="paramkey"></td>
    623. 

  623.           <td></td>
    624. 

  624.           <td class="paramtype">int8_t *&#160;</td>
    625. 

  625.           <td class="paramname"><em>input</em>, </td>
    626. 

  626.         </tr>
    627. 

  627.         <tr>
    628. 

  628.           <td class="paramkey"></td>
    629. 

  629.           <td></td>
    630. 

  630.           <td class="paramtype">int16_t *&#160;</td>
    631. 

  631.           <td class="paramname"><em>tmp_buffer</em>, </td>
    632. 

  632.         </tr>
    633. 

  633.         <tr>
    634. 

  634.           <td class="paramkey"></td>
    635. 

  635.           <td></td>
    636. 

  636.           <td class="paramtype">int8_t *&#160;</td>
    637. 

  637.           <td class="paramname"><em>output</em>&#160;</td>
    638. 

  638.         </tr>
    639. 

  639.         <tr>
    640. 

  640.           <td></td>
    641. 

  641.           <td>)</td>
    642. 

  642.           <td></td><td></td>
    643. 

  643.         </tr>
    644. 

  644.       </table>
    645. 

  645. </div><div class="memdoc">
    646. 

  646. <dl class="params"><dt>Parameters</dt><dd>
    647. 

  647.   <table class="params">
    648. 

  648.     <tr><td class="paramdir">[in]</td><td class="paramname">input_y</td><td>input tensor dimension along y </td></tr>
    649. 

  649.     <tr><td class="paramdir">[in]</td><td class="paramname">input_x</td><td>input tensor dimension along x </td></tr>
    650. 

  650.     <tr><td class="paramdir">[in]</td><td class="paramname">output_y</td><td>output tensor dimension along y </td></tr>
    651. 

  651.     <tr><td class="paramdir">[in]</td><td class="paramname">output_x</td><td>output tensor dimension along x </td></tr>
    652. 

  652.     <tr><td class="paramdir">[in]</td><td class="paramname">stride_y</td><td>stride along y </td></tr>
    653. 

  653.     <tr><td class="paramdir">[in]</td><td class="paramname">stride_x</td><td>stride along x </td></tr>
    654. 

  654.     <tr><td class="paramdir">[in]</td><td class="paramname">kernel_y</td><td>filter kernel size along y </td></tr>
    655. 

  655.     <tr><td class="paramdir">[in]</td><td class="paramname">kernel_x</td><td>filter kernel size along x </td></tr>
    656. 

  656.     <tr><td class="paramdir">[in]</td><td class="paramname">pad_y</td><td>padding size along y </td></tr>
    657. 

  657.     <tr><td class="paramdir">[in]</td><td class="paramname">pad_x</td><td>padding size along x </td></tr>
    658. 

  658.     <tr><td class="paramdir">[in]</td><td class="paramname">act_min</td><td>Activation min. Lower limit to clamp output to. Range: int8 </td></tr>
    659. 

  659.     <tr><td class="paramdir">[in]</td><td class="paramname">act_max</td><td>Activation max. Upper limit to clamp output to. Range: int8 </td></tr>
    660. 

  660.     <tr><td class="paramdir">[in]</td><td class="paramname">depth</td><td>number of input channels </td></tr>
    661. 

  661.     <tr><td class="paramdir">[in]</td><td class="paramname">input</td><td>pointer to input tensor </td></tr>
    662. 

  662.     <tr><td class="paramdir">[in]</td><td class="paramname">tmp_buffer</td><td>Not used. </td></tr>
    663. 

  663.     <tr><td class="paramdir">[in,out]</td><td class="paramname">output</td><td>pointer to output tensor </td></tr>
    664. 

  664.   </table>
    665. 

  665.   </dd>
    666. 

  666. </dl>
    667. 

  667. <dl class="section return"><dt>Returns</dt><dd>The function returns one of the following <code>ARM_MATH_SIZE_MISMATCH</code> - Unsupported dimension of tensors <code>ARM_MATH_SUCCESS</code> - Successful operation <code>ARM_MATH_ARGUMENT_ERROR</code> - Implementation not available </dd></dl>
    668. 

  668. <dl class="section note"><dt>Note</dt><dd>The input data is corrupted by this function.</dd></dl>
    669. 

  669. <p>This optimized implementation is recommended when depth is &gt;= 4 and dimensions are large. </p>
    670. 

  670. 

  671. <p>References <a class="el" href="group__Pooling.html#ga9ba8703e0f24059167f445c978026764">arm_max_pool_s8()</a>.</p>
    672. 

  672. 

  673. </div>
    674. 

  674. </div>
    675. 

  675. <a class="anchor" id="ga99afcdcc61eaf429ab3ee823702e44ce"></a>
    676. 

  676. <div class="memitem">
    677. 

  677. <div class="memproto">
    678. 

  678.       <table class="memname">
    679. 

  679.         <tr>
    680. 

  680.           <td class="memname">void arm_maxpool_q7_HWC </td>
    681. 

  681.           <td>(</td>
    682. 

  682.           <td class="paramtype">q7_t *&#160;</td>
    683. 

  683.           <td class="paramname"><em>Im_in</em>, </td>
    684. 

  684.         </tr>
    685. 

  685.         <tr>
    686. 

  686.           <td class="paramkey"></td>
    687. 

  687.           <td></td>
    688. 

  688.           <td class="paramtype">const uint16_t&#160;</td>
    689. 

  689.           <td class="paramname"><em>dim_im_in</em>, </td>
    690. 

  690.         </tr>
    691. 

  691.         <tr>
    692. 

  692.           <td class="paramkey"></td>
    693. 

  693.           <td></td>
    694. 

  694.           <td class="paramtype">const uint16_t&#160;</td>
    695. 

  695.           <td class="paramname"><em>ch_im_in</em>, </td>
    696. 

  696.         </tr>
    697. 

  697.         <tr>
    698. 

  698.           <td class="paramkey"></td>
    699. 

  699.           <td></td>
    700. 

  700.           <td class="paramtype">const uint16_t&#160;</td>
    701. 

  701.           <td class="paramname"><em>dim_kernel</em>, </td>
    702. 

  702.         </tr>
    703. 

  703.         <tr>
    704. 

  704.           <td class="paramkey"></td>
    705. 

  705.           <td></td>
    706. 

  706.           <td class="paramtype">const uint16_t&#160;</td>
    707. 

  707.           <td class="paramname"><em>padding</em>, </td>
    708. 

  708.         </tr>
    709. 

  709.         <tr>
    710. 

  710.           <td class="paramkey"></td>
    711. 

  711.           <td></td>
    712. 

  712.           <td class="paramtype">const uint16_t&#160;</td>
    713. 

  713.           <td class="paramname"><em>stride</em>, </td>
    714. 

  714.         </tr>
    715. 

  715.         <tr>
    716. 

  716.           <td class="paramkey"></td>
    717. 

  717.           <td></td>
    718. 

  718.           <td class="paramtype">const uint16_t&#160;</td>
    719. 

  719.           <td class="paramname"><em>dim_im_out</em>, </td>
    720. 

  720.         </tr>
    721. 

  721.         <tr>
    722. 

  722.           <td class="paramkey"></td>
    723. 

  723.           <td></td>
    724. 

  724.           <td class="paramtype">q7_t *&#160;</td>
    725. 

  725.           <td class="paramname"><em>bufferA</em>, </td>
    726. 

  726.         </tr>
    727. 

  727.         <tr>
    728. 

  728.           <td class="paramkey"></td>
    729. 

  729.           <td></td>
    730. 

  730.           <td class="paramtype">q7_t *&#160;</td>
    731. 

  731.           <td class="paramname"><em>Im_out</em>&#160;</td>
    732. 

  732.         </tr>
    733. 

  733.         <tr>
    734. 

  734.           <td></td>
    735. 

  735.           <td>)</td>
    736. 

  736.           <td></td><td></td>
    737. 

  737.         </tr>
    738. 

  738.       </table>
    739. 

  739. </div><div class="memdoc">
    740. 

  740. <dl class="params"><dt>Parameters</dt><dd>
    741. 

  741.   <table class="params">
    742. 

  742.     <tr><td class="paramdir">[in,out]</td><td class="paramname">Im_in</td><td>pointer to input tensor </td></tr>
    743. 

  743.     <tr><td class="paramdir">[in]</td><td class="paramname">dim_im_in</td><td>input tensor dimention </td></tr>
    744. 

  744.     <tr><td class="paramdir">[in]</td><td class="paramname">ch_im_in</td><td>number of input tensor channels </td></tr>
    745. 

  745.     <tr><td class="paramdir">[in]</td><td class="paramname">dim_kernel</td><td>filter kernel size </td></tr>
    746. 

  746.     <tr><td class="paramdir">[in]</td><td class="paramname">padding</td><td>padding sizes </td></tr>
    747. 

  747.     <tr><td class="paramdir">[in]</td><td class="paramname">stride</td><td>convolution stride </td></tr>
    748. 

  748.     <tr><td class="paramdir">[in]</td><td class="paramname">dim_im_out</td><td>output tensor dimension </td></tr>
    749. 

  749.     <tr><td class="paramdir">[in,out]</td><td class="paramname">bufferA</td><td>Not used </td></tr>
    750. 

  750.     <tr><td class="paramdir">[in,out]</td><td class="paramname">Im_out</td><td>pointer to output tensor</td></tr>
    751. 

  751.   </table>
    752. 

  752.   </dd>
    753. 

  753. </dl>
    754. 

  754. <p>The pooling function is implemented as split x-pooling then y-pooling.</p>
    755. 

  755. <p>This pooling function is input-destructive. Input data is undefined after calling this function. </p>
    756. 

  756. 

  757. <p>Referenced by <a class="el" href="arm__nnexamples__cifar10_8cpp.html#ae66f6b31b5ad750f1fe042a706a4e3d4">main()</a>.</p>
    758. 

  758. 

  759. </div>
    760. 

  760. </div>
    761. 

  761. </div><!-- contents -->
    762. 

  762. </div><!-- doc-content -->
    763. 

  763. <!-- start footer part -->
    764. 

  764. <div id="nav-path" class="navpath"><!-- id is needed for treeview function! -->
    765. 

  765.   <ul>
    766. 

  766.     <li class="footer">Generated on Thu Apr 9 2020 15:49:34 for CMSIS-NN Version 1.3.0 by Arm Ltd. All rights reserved.
    767. 

  767. 	<!--
    768. 

  768.     <a href="http://www.doxygen.org/index.html">
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    770. 

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    771. 

  771. 	</li>
    772. 

  772.   </ul>
    773. 

  773. </div>
    774. 

  774. </body>
    775. 

  775. </html>
    776.