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<td class='lines'><pre><code><span class="hl com">/* SPDX-License-Identifier: BSD-2-Clause */</span>
<span class="hl com">/*</span>
<span class="hl com"> * Copyright (C) 2019, Raspberry Pi (Trading) Limited</span>
<span class="hl com"> *</span>
<span class="hl com"> * histogram.h - histogram calculation interface</span>
<span class="hl com"> */</span>
<span class="hl ppc">#pragma once</span>
<span class="hl ppc">#include <assert.h></span>
<span class="hl ppc">#include <limits.h></span>
<span class="hl ppc">#include <stdint.h></span>
<span class="hl ppc">#include <vector></span>
<span class="hl ppc">#include <libcamera/base/span.h></span>
<span class="hl kwa">namespace</span> libcamera <span class="hl opt">{</span>
<span class="hl kwa">namespace</span> ipa <span class="hl opt">{</span>
<span class="hl kwc">class</span> Histogram
<span class="hl opt">{</span>
<span class="hl kwc">public</span><span class="hl opt">:</span>
<span class="hl kwd">Histogram</span><span class="hl opt">(</span>Span<span class="hl opt"><</span><span class="hl kwb">const uint32_t</span><span class="hl opt">></span> data<span class="hl opt">);</span>
<span class="hl kwb">size_t</span> <span class="hl kwd">bins</span><span class="hl opt">()</span> <span class="hl kwb">const</span> <span class="hl opt">{</span> <span class="hl kwa">return</span> cumulative_<span class="hl opt">.</span><span class="hl kwd">size</span><span class="hl opt">() -</span> <span class="hl num">1</span><span class="hl opt">; }</span>
<span class="hl kwb">uint64_t</span> <span class="hl kwd">total</span><span class="hl opt">()</span> <span class="hl kwb">const</span> <span class="hl opt">{</span> <span class="hl kwa">return</span> cumulative_<span class="hl opt">[</span>cumulative_<span class="hl opt">.</span><span class="hl kwd">size</span><span class="hl opt">() -</span> <span class="hl num">1</span><span class="hl opt">]; }</span>
<span class="hl kwb">uint64_t</span> <span class="hl kwd">cumulativeFrequency</span><span class="hl opt">(</span><span class="hl kwb">double</span> bin<span class="hl opt">)</span> <span class="hl kwb">const</span><span class="hl opt">;</span>
<span class="hl kwb">double</span> <span class="hl kwd">quantile</span><span class="hl opt">(</span><span class="hl kwb">double</span> q<span class="hl opt">,</span> <span class="hl kwb">uint32_t</span> first <span class="hl opt">=</span> <span class="hl num">0</span><span class="hl opt">,</span> <span class="hl kwb">uint32_t</span> last <span class="hl opt">=</span> UINT_MAX<span class="hl opt">)</span> <span class="hl kwb">const</span><span class="hl opt">;</span>
<span class="hl kwb">double</span> <span class="hl kwd">interQuantileMean</span><span class="hl opt">(</span><span class="hl kwb">double</span> lowQuantile<span class="hl opt">,</span> <span class="hl kwb">double</span> hiQuantile<span class="hl opt">)</span> <span class="hl kwb">const</span><span class="hl opt">;</span>
<span class="hl kwc">private</span><span class="hl opt">:</span>
<span class="hl kwc">std</span><span class="hl opt">::</span>vector<span class="hl opt"><</span><span class="hl kwb">uint64_t</span><span class="hl opt">></span> cumulative_<span class="hl opt">;</span>
<span class="hl opt">};</span>
<span class="hl opt">}</span> <span class="hl com">/* namespace ipa */</span>
<span class="hl opt">}</span> <span class="hl com">/* namespace libcamera */</span>