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117 <div class="title">dequantization_layer.cl File Reference</div> </div>
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120 <div class="textblock"><code>#include "<a class="el" href="helpers_8h_source.xhtml">helpers.h</a>"</code><br/>
122 <p><a href="dequantization__layer_8cl_source.xhtml">Go to the source code of this file.</a></p>
123 <table class="memberdecls">
124 <tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="func-members"></a>
125 Functions</h2></td></tr>
126 <tr class="memitem:a60e9b00d30a2743653c1f589e33467b9"><td class="memItemLeft" align="right" valign="top">__kernel void </td><td class="memItemRight" valign="bottom"><a class="el" href="dequantization__layer_8cl.xhtml#a60e9b00d30a2743653c1f589e33467b9">dequantization_layer</a> (__global uchar *input_ptr, uint input_stride_x, uint input_step_x, uint input_stride_y, uint input_step_y, uint input_stride_z, uint input_step_z, uint input_offset_first_element_in_bytes, __global uchar *output_ptr, uint output_stride_x, uint output_step_x, uint output_stride_y, uint output_step_y, uint output_stride_z, uint output_step_z, uint output_offset_first_element_in_bytes, __global uchar *min_max_ptr, uint min_max_stride_x, uint min_max_step_x, uint min_max_offset_first_element_in_bytes)</td></tr>
127 <tr class="memdesc:a60e9b00d30a2743653c1f589e33467b9"><td class="mdescLeft"> </td><td class="mdescRight">This performs the dequantization of 8-bit unsigned integers to floating point. <a href="#a60e9b00d30a2743653c1f589e33467b9">More...</a><br/></td></tr>
128 <tr class="separator:a60e9b00d30a2743653c1f589e33467b9"><td class="memSeparator" colspan="2"> </td></tr>
130 <h2 class="groupheader">Function Documentation</h2>
131 <a class="anchor" id="a60e9b00d30a2743653c1f589e33467b9"></a>
132 <div class="memitem">
133 <div class="memproto">
134 <table class="memname">
136 <td class="memname">__kernel void dequantization_layer </td>
138 <td class="paramtype">__global uchar * </td>
139 <td class="paramname"><em>input_ptr</em>, </td>
142 <td class="paramkey"></td>
144 <td class="paramtype">uint </td>
145 <td class="paramname"><em>input_stride_x</em>, </td>
148 <td class="paramkey"></td>
150 <td class="paramtype">uint </td>
151 <td class="paramname"><em>input_step_x</em>, </td>
154 <td class="paramkey"></td>
156 <td class="paramtype">uint </td>
157 <td class="paramname"><em>input_stride_y</em>, </td>
160 <td class="paramkey"></td>
162 <td class="paramtype">uint </td>
163 <td class="paramname"><em>input_step_y</em>, </td>
166 <td class="paramkey"></td>
168 <td class="paramtype">uint </td>
169 <td class="paramname"><em>input_stride_z</em>, </td>
172 <td class="paramkey"></td>
174 <td class="paramtype">uint </td>
175 <td class="paramname"><em>input_step_z</em>, </td>
178 <td class="paramkey"></td>
180 <td class="paramtype">uint </td>
181 <td class="paramname"><em>input_offset_first_element_in_bytes</em>, </td>
184 <td class="paramkey"></td>
186 <td class="paramtype">__global uchar * </td>
187 <td class="paramname"><em>output_ptr</em>, </td>
190 <td class="paramkey"></td>
192 <td class="paramtype">uint </td>
193 <td class="paramname"><em>output_stride_x</em>, </td>
196 <td class="paramkey"></td>
198 <td class="paramtype">uint </td>
199 <td class="paramname"><em>output_step_x</em>, </td>
202 <td class="paramkey"></td>
204 <td class="paramtype">uint </td>
205 <td class="paramname"><em>output_stride_y</em>, </td>
208 <td class="paramkey"></td>
210 <td class="paramtype">uint </td>
211 <td class="paramname"><em>output_step_y</em>, </td>
214 <td class="paramkey"></td>
216 <td class="paramtype">uint </td>
217 <td class="paramname"><em>output_stride_z</em>, </td>
220 <td class="paramkey"></td>
222 <td class="paramtype">uint </td>
223 <td class="paramname"><em>output_step_z</em>, </td>
226 <td class="paramkey"></td>
228 <td class="paramtype">uint </td>
229 <td class="paramname"><em>output_offset_first_element_in_bytes</em>, </td>
232 <td class="paramkey"></td>
234 <td class="paramtype">__global uchar * </td>
235 <td class="paramname"><em>min_max_ptr</em>, </td>
238 <td class="paramkey"></td>
240 <td class="paramtype">uint </td>
241 <td class="paramname"><em>min_max_stride_x</em>, </td>
244 <td class="paramkey"></td>
246 <td class="paramtype">uint </td>
247 <td class="paramname"><em>min_max_step_x</em>, </td>
250 <td class="paramkey"></td>
252 <td class="paramtype">uint </td>
253 <td class="paramname"><em>min_max_offset_first_element_in_bytes</em> </td>
261 </div><div class="memdoc">
263 <p>This performs the dequantization of 8-bit unsigned integers to floating point. </p>
264 <dl class="params"><dt>Parameters</dt><dd>
265 <table class="params">
266 <tr><td class="paramdir">[in]</td><td class="paramname">input_ptr</td><td>Pointer to the source image. Supported data types: QS8/QS16/F16/F32 </td></tr>
267 <tr><td class="paramdir">[in]</td><td class="paramname">input_stride_x</td><td>Stride of the source image in X dimension (in bytes) </td></tr>
268 <tr><td class="paramdir">[in]</td><td class="paramname">input_step_x</td><td>input_stride_x * number of elements along X processed per workitem(in bytes) </td></tr>
269 <tr><td class="paramdir">[in]</td><td class="paramname">input_stride_y</td><td>Stride of the source image in Y dimension (in bytes) </td></tr>
270 <tr><td class="paramdir">[in]</td><td class="paramname">input_step_y</td><td>input_stride_y * number of elements along Y processed per workitem(in bytes) </td></tr>
271 <tr><td class="paramdir">[in]</td><td class="paramname">input_stride_z</td><td>Stride of the source tensor in Z dimension (in bytes) </td></tr>
272 <tr><td class="paramdir">[in]</td><td class="paramname">input_step_z</td><td>input_stride_z * number of elements along Z processed per workitem(in bytes) </td></tr>
273 <tr><td class="paramdir">[in]</td><td class="paramname">input_offset_first_element_in_bytes</td><td>The offset of the first element in the source image </td></tr>
274 <tr><td class="paramdir">[out]</td><td class="paramname">output_ptr</td><td>Pointer to the destination image. Supported data types: same as <code>input_ptr</code> </td></tr>
275 <tr><td class="paramdir">[in]</td><td class="paramname">output_stride_x</td><td>Stride of the destination image in X dimension (in bytes) </td></tr>
276 <tr><td class="paramdir">[in]</td><td class="paramname">output_step_x</td><td>output_stride_x * number of elements along X processed per workitem(in bytes) </td></tr>
277 <tr><td class="paramdir">[in]</td><td class="paramname">output_stride_y</td><td>Stride of the destination image in Y dimension (in bytes) </td></tr>
278 <tr><td class="paramdir">[in]</td><td class="paramname">output_step_y</td><td>output_stride_y * number of elements along Y processed per workitem(in bytes) </td></tr>
279 <tr><td class="paramdir">[in]</td><td class="paramname">output_stride_z</td><td>Stride of the source tensor in Z dimension (in bytes) </td></tr>
280 <tr><td class="paramdir">[in]</td><td class="paramname">output_step_z</td><td>output_stride_z * number of elements along Z processed per workitem(in bytes) </td></tr>
281 <tr><td class="paramdir">[in]</td><td class="paramname">output_offset_first_element_in_bytes</td><td>The offset of the first element in the destination image </td></tr>
282 <tr><td class="paramdir">[in]</td><td class="paramname">min_max_ptr</td><td>Pointer to the min/max vector. Minimum value in position 0, maximum value in position 1. Suppported data types: F32. </td></tr>
283 <tr><td class="paramdir">[in]</td><td class="paramname">min_max_stride_x</td><td>Stride of the min/max vector in X dimension (in bytes) </td></tr>
284 <tr><td class="paramdir">[in]</td><td class="paramname">min_max_step_x</td><td>min_max_stride_x * number of elements along X processed per workitem(in bytes) </td></tr>
285 <tr><td class="paramdir">[in]</td><td class="paramname">min_max_offset_first_element_in_bytes</td><td>The offset of the first element in the min/max vector </td></tr>
290 <p>Definition at line <a class="el" href="dequantization__layer_8cl_source.xhtml#l00049">49</a> of file <a class="el" href="dequantization__layer_8cl_source.xhtml">dequantization_layer.cl</a>.</p>
292 <p>References <a class="el" href="helpers_8h_source.xhtml#l00108">CONVERT_TO_TENSOR3D_STRUCT</a>, <a class="el" href="helpers_8h_source.xhtml#l00087">CONVERT_TO_VECTOR_STRUCT</a>, <a class="el" href="helpers_8h_source.xhtml#l00125">Vector::ptr</a>, <a class="el" href="helpers_8h_source.xhtml#l00142">Tensor3D::ptr</a>, and <a class="el" href="_c_p_p_2_scale_8cpp_source.xhtml#l00039">arm_compute::test::validation::reference::scale()</a>.</p>
293 <div class="fragment"><div class="line"><a name="l00053"></a><span class="lineno"> 53</span> {</div>
294 <div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  <span class="comment">// Get pixels pointer</span></div>
295 <div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  <a class="code" href="struct_tensor3_d.xhtml">Tensor3D</a> input = <a class="code" href="helpers_8h.xhtml#a31c8c760f08fb1a331b16b7c204321dc">CONVERT_TO_TENSOR3D_STRUCT</a>(input);</div>
296 <div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  <a class="code" href="struct_tensor3_d.xhtml">Tensor3D</a> output = <a class="code" href="helpers_8h.xhtml#a31c8c760f08fb1a331b16b7c204321dc">CONVERT_TO_TENSOR3D_STRUCT</a>(output);</div>
297 <div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  <a class="code" href="struct_vector.xhtml">Vector</a> min_max = <a class="code" href="helpers_8h.xhtml#a527bfdf5eeb306f1cf01c4a8e29f38e0">CONVERT_TO_VECTOR_STRUCT</a>(min_max);</div>
298 <div class="line"><a name="l00058"></a><span class="lineno"> 58</span> </div>
299 <div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  <span class="comment">// min_max_value.s0 = min, min_max_value.s1 = max</span></div>
300 <div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  <span class="keyword">const</span> float2 min_max_value = vload2(0, (__global <span class="keywordtype">float</span> *)min_max.<a class="code" href="struct_vector.xhtml#acf52c23cbd7424606c10a606524e3e32">ptr</a>);</div>
301 <div class="line"><a name="l00061"></a><span class="lineno"> 61</span> </div>
302 <div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  <span class="keyword">const</span> float4 vmin = (float4)min_max_value.s0;</div>
303 <div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  <span class="keyword">const</span> float4 <a class="code" href="namespacearm__compute_1_1test_1_1validation_1_1reference.xhtml#a2c08fc82f2e4b9733cd0dacd6eabe579">scale</a> = (float4)((min_max_value.s1 - min_max_value.s0) / 255.0f);</div>
304 <div class="line"><a name="l00064"></a><span class="lineno"> 64</span> </div>
305 <div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  <span class="comment">// Load data</span></div>
306 <div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  <span class="keyword">const</span> uchar4 data = vload4(0, (__global uchar *)input.<a class="code" href="struct_tensor3_d.xhtml#acf52c23cbd7424606c10a606524e3e32">ptr</a>);</div>
307 <div class="line"><a name="l00067"></a><span class="lineno"> 67</span> </div>
308 <div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  <span class="comment">// Dequantize</span></div>
309 <div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  <span class="keyword">const</span> float4 res = convert_float4(data) * <a class="code" href="namespacearm__compute_1_1test_1_1validation_1_1reference.xhtml#a2c08fc82f2e4b9733cd0dacd6eabe579">scale</a> + vmin;</div>
310 <div class="line"><a name="l00070"></a><span class="lineno"> 70</span> </div>
311 <div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  <span class="comment">// Store result</span></div>
312 <div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  vstore4(res, 0, (__global <span class="keywordtype">float</span> *)output.<a class="code" href="struct_tensor3_d.xhtml#acf52c23cbd7424606c10a606524e3e32">ptr</a>);</div>
313 <div class="line"><a name="l00073"></a><span class="lineno"> 73</span> }</div>
314 <div class="ttc" id="struct_vector_xhtml"><div class="ttname"><a href="struct_vector.xhtml">Vector</a></div><div class="ttdoc">Structure to hold Vector information. </div><div class="ttdef"><b>Definition:</b> <a href="helpers_8h_source.xhtml#l00123">helpers.h:123</a></div></div>
315 <div class="ttc" id="helpers_8h_xhtml_a31c8c760f08fb1a331b16b7c204321dc"><div class="ttname"><a href="helpers_8h.xhtml#a31c8c760f08fb1a331b16b7c204321dc">CONVERT_TO_TENSOR3D_STRUCT</a></div><div class="ttdeci">#define CONVERT_TO_TENSOR3D_STRUCT(name)</div><div class="ttdef"><b>Definition:</b> <a href="helpers_8h_source.xhtml#l00108">helpers.h:108</a></div></div>
316 <div class="ttc" id="helpers_8h_xhtml_a527bfdf5eeb306f1cf01c4a8e29f38e0"><div class="ttname"><a href="helpers_8h.xhtml#a527bfdf5eeb306f1cf01c4a8e29f38e0">CONVERT_TO_VECTOR_STRUCT</a></div><div class="ttdeci">#define CONVERT_TO_VECTOR_STRUCT(name)</div><div class="ttdef"><b>Definition:</b> <a href="helpers_8h_source.xhtml#l00087">helpers.h:87</a></div></div>
317 <div class="ttc" id="struct_tensor3_d_xhtml"><div class="ttname"><a href="struct_tensor3_d.xhtml">Tensor3D</a></div><div class="ttdoc">Structure to hold 3D tensor information. </div><div class="ttdef"><b>Definition:</b> <a href="helpers_8h_source.xhtml#l00140">helpers.h:140</a></div></div>
318 <div class="ttc" id="struct_vector_xhtml_acf52c23cbd7424606c10a606524e3e32"><div class="ttname"><a href="struct_vector.xhtml#acf52c23cbd7424606c10a606524e3e32">Vector::ptr</a></div><div class="ttdeci">__global uchar * ptr</div><div class="ttdoc">Pointer to the starting postion of the buffer. </div><div class="ttdef"><b>Definition:</b> <a href="helpers_8h_source.xhtml#l00125">helpers.h:125</a></div></div>
319 <div class="ttc" id="struct_tensor3_d_xhtml_acf52c23cbd7424606c10a606524e3e32"><div class="ttname"><a href="struct_tensor3_d.xhtml#acf52c23cbd7424606c10a606524e3e32">Tensor3D::ptr</a></div><div class="ttdeci">__global uchar * ptr</div><div class="ttdoc">Pointer to the starting postion of the buffer. </div><div class="ttdef"><b>Definition:</b> <a href="helpers_8h_source.xhtml#l00142">helpers.h:142</a></div></div>
320 <div class="ttc" id="namespacearm__compute_1_1test_1_1validation_1_1reference_xhtml_a2c08fc82f2e4b9733cd0dacd6eabe579"><div class="ttname"><a href="namespacearm__compute_1_1test_1_1validation_1_1reference.xhtml#a2c08fc82f2e4b9733cd0dacd6eabe579">arm_compute::test::validation::reference::scale</a></div><div class="ttdeci">SimpleTensor< T > scale(const SimpleTensor< T > &in, float scale_x, float scale_y, InterpolationPolicy policy, BorderMode border_mode, T constant_border_value)</div><div class="ttdef"><b>Definition:</b> <a href="_c_p_p_2_scale_8cpp_source.xhtml#l00039">Scale.cpp:39</a></div></div>
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332 <img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.8.6 </li>