| <!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Source of the Rust file `/root/.cargo/registry/src/github.com-1ecc6299db9ec823/miniz_oxide-0.7.1/src/deflate/core.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>core.rs - source</title><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../SourceSerif4-Regular.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../FiraSans-Regular.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../FiraSans-Medium.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../SourceCodePro-Regular.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../SourceSerif4-Bold.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../SourceCodePro-Semibold.ttf.woff2"><link rel="stylesheet" href="../../../normalize.css"><link rel="stylesheet" href="../../../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" href="../../../ayu.css" disabled><link rel="stylesheet" href="../../../dark.css" disabled><link rel="stylesheet" href="../../../light.css" id="themeStyle"><script id="default-settings" ></script><script src="../../../storage.js"></script><script defer src="../../../source-script.js"></script><script defer src="../../../source-files.js"></script><script defer src="../../../main.js"></script><noscript><link rel="stylesheet" href="../../../noscript.css"></noscript><link rel="alternate icon" type="image/png" href="../../../favicon-16x16.png"><link rel="alternate icon" type="image/png" href="../../../favicon-32x32.png"><link rel="icon" type="image/svg+xml" href="../../../favicon.svg"></head><body class="rustdoc source"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><a class="sidebar-logo" href="../../../miniz_oxide/index.html"><div class="logo-container"><img class="rust-logo" src="../../../rust-logo.svg" alt="logo"></div></a></nav><main><div class="width-limiter"><nav class="sub"><a class="sub-logo-container" href="../../../miniz_oxide/index.html"><img class="rust-logo" src="../../../rust-logo.svg" alt="logo"></a><form class="search-form"><div class="search-container"><span></span><input class="search-input" name="search" autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"><div id="help-button" title="help" tabindex="-1"><a href="../../../help.html">?</a></div><div id="settings-menu" tabindex="-1"><a href="../../../settings.html" title="settings"><img width="22" height="22" alt="Change settings" src="../../../wheel.svg"></a></div></div></form></nav><section id="main-content" class="content"><div class="example-wrap"><pre class="src-line-numbers"><span id="1">1</span> |
| <span id="2">2</span> |
| <span id="3">3</span> |
| <span id="4">4</span> |
| <span id="5">5</span> |
| <span id="6">6</span> |
| <span id="7">7</span> |
| <span id="8">8</span> |
| <span id="9">9</span> |
| <span id="10">10</span> |
| <span id="11">11</span> |
| <span id="12">12</span> |
| <span id="13">13</span> |
| <span id="14">14</span> |
| <span id="15">15</span> |
| <span id="16">16</span> |
| <span id="17">17</span> |
| <span id="18">18</span> |
| <span id="19">19</span> |
| <span id="20">20</span> |
| <span id="21">21</span> |
| <span id="22">22</span> |
| <span id="23">23</span> |
| <span id="24">24</span> |
| <span id="25">25</span> |
| <span id="26">26</span> |
| <span id="27">27</span> |
| <span id="28">28</span> |
| <span id="29">29</span> |
| <span id="30">30</span> |
| <span id="31">31</span> |
| <span id="32">32</span> |
| <span id="33">33</span> |
| <span id="34">34</span> |
| <span id="35">35</span> |
| <span id="36">36</span> |
| <span id="37">37</span> |
| <span id="38">38</span> |
| <span id="39">39</span> |
| <span id="40">40</span> |
| <span id="41">41</span> |
| <span id="42">42</span> |
| <span id="43">43</span> |
| <span id="44">44</span> |
| <span id="45">45</span> |
| <span id="46">46</span> |
| <span id="47">47</span> |
| <span id="48">48</span> |
| <span id="49">49</span> |
| <span id="50">50</span> |
| <span id="51">51</span> |
| <span id="52">52</span> |
| <span id="53">53</span> |
| <span id="54">54</span> |
| <span id="55">55</span> |
| <span id="56">56</span> |
| <span id="57">57</span> |
| <span id="58">58</span> |
| <span id="59">59</span> |
| <span id="60">60</span> |
| <span id="61">61</span> |
| <span id="62">62</span> |
| <span id="63">63</span> |
| <span id="64">64</span> |
| <span id="65">65</span> |
| <span id="66">66</span> |
| <span id="67">67</span> |
| <span id="68">68</span> |
| <span id="69">69</span> |
| <span id="70">70</span> |
| <span id="71">71</span> |
| <span id="72">72</span> |
| <span id="73">73</span> |
| <span id="74">74</span> |
| <span id="75">75</span> |
| <span id="76">76</span> |
| <span id="77">77</span> |
| <span id="78">78</span> |
| <span id="79">79</span> |
| <span id="80">80</span> |
| <span id="81">81</span> |
| <span id="82">82</span> |
| <span id="83">83</span> |
| <span id="84">84</span> |
| <span id="85">85</span> |
| <span id="86">86</span> |
| <span id="87">87</span> |
| <span id="88">88</span> |
| <span id="89">89</span> |
| <span id="90">90</span> |
| <span id="91">91</span> |
| <span id="92">92</span> |
| <span id="93">93</span> |
| <span id="94">94</span> |
| <span id="95">95</span> |
| <span id="96">96</span> |
| <span id="97">97</span> |
| <span id="98">98</span> |
| <span id="99">99</span> |
| <span id="100">100</span> |
| <span id="101">101</span> |
| <span id="102">102</span> |
| <span id="103">103</span> |
| <span id="104">104</span> |
| <span id="105">105</span> |
| <span id="106">106</span> |
| <span id="107">107</span> |
| <span id="108">108</span> |
| <span id="109">109</span> |
| <span id="110">110</span> |
| <span id="111">111</span> |
| <span id="112">112</span> |
| <span id="113">113</span> |
| <span id="114">114</span> |
| <span id="115">115</span> |
| <span id="116">116</span> |
| <span id="117">117</span> |
| <span id="118">118</span> |
| <span id="119">119</span> |
| <span id="120">120</span> |
| <span id="121">121</span> |
| <span id="122">122</span> |
| <span id="123">123</span> |
| <span id="124">124</span> |
| <span id="125">125</span> |
| <span id="126">126</span> |
| <span id="127">127</span> |
| <span id="128">128</span> |
| <span id="129">129</span> |
| <span id="130">130</span> |
| <span id="131">131</span> |
| <span id="132">132</span> |
| <span id="133">133</span> |
| <span id="134">134</span> |
| <span id="135">135</span> |
| <span id="136">136</span> |
| <span id="137">137</span> |
| <span id="138">138</span> |
| <span id="139">139</span> |
| <span id="140">140</span> |
| <span id="141">141</span> |
| <span id="142">142</span> |
| <span id="143">143</span> |
| <span id="144">144</span> |
| <span id="145">145</span> |
| <span id="146">146</span> |
| <span id="147">147</span> |
| <span id="148">148</span> |
| <span id="149">149</span> |
| <span id="150">150</span> |
| <span id="151">151</span> |
| <span id="152">152</span> |
| <span id="153">153</span> |
| <span id="154">154</span> |
| <span id="155">155</span> |
| <span id="156">156</span> |
| <span id="157">157</span> |
| <span id="158">158</span> |
| <span id="159">159</span> |
| <span id="160">160</span> |
| <span id="161">161</span> |
| <span id="162">162</span> |
| <span id="163">163</span> |
| <span id="164">164</span> |
| <span id="165">165</span> |
| <span id="166">166</span> |
| <span id="167">167</span> |
| <span id="168">168</span> |
| <span id="169">169</span> |
| <span id="170">170</span> |
| <span id="171">171</span> |
| <span id="172">172</span> |
| <span id="173">173</span> |
| <span id="174">174</span> |
| <span id="175">175</span> |
| <span id="176">176</span> |
| <span id="177">177</span> |
| <span id="178">178</span> |
| <span id="179">179</span> |
| <span id="180">180</span> |
| <span id="181">181</span> |
| <span id="182">182</span> |
| <span id="183">183</span> |
| <span id="184">184</span> |
| <span id="185">185</span> |
| <span id="186">186</span> |
| <span id="187">187</span> |
| <span id="188">188</span> |
| <span id="189">189</span> |
| <span id="190">190</span> |
| <span id="191">191</span> |
| <span id="192">192</span> |
| <span id="193">193</span> |
| <span id="194">194</span> |
| <span id="195">195</span> |
| <span id="196">196</span> |
| <span id="197">197</span> |
| <span id="198">198</span> |
| <span id="199">199</span> |
| <span id="200">200</span> |
| <span id="201">201</span> |
| <span id="202">202</span> |
| <span id="203">203</span> |
| <span id="204">204</span> |
| <span id="205">205</span> |
| <span id="206">206</span> |
| <span id="207">207</span> |
| <span id="208">208</span> |
| <span id="209">209</span> |
| <span id="210">210</span> |
| <span id="211">211</span> |
| <span id="212">212</span> |
| <span id="213">213</span> |
| <span id="214">214</span> |
| <span id="215">215</span> |
| <span id="216">216</span> |
| <span id="217">217</span> |
| <span id="218">218</span> |
| <span id="219">219</span> |
| <span id="220">220</span> |
| <span id="221">221</span> |
| <span id="222">222</span> |
| <span id="223">223</span> |
| <span id="224">224</span> |
| <span id="225">225</span> |
| <span id="226">226</span> |
| <span id="227">227</span> |
| <span id="228">228</span> |
| <span id="229">229</span> |
| <span id="230">230</span> |
| <span id="231">231</span> |
| <span id="232">232</span> |
| <span id="233">233</span> |
| <span id="234">234</span> |
| <span id="235">235</span> |
| <span id="236">236</span> |
| <span id="237">237</span> |
| <span id="238">238</span> |
| <span id="239">239</span> |
| <span id="240">240</span> |
| <span id="241">241</span> |
| <span id="242">242</span> |
| <span id="243">243</span> |
| <span id="244">244</span> |
| <span id="245">245</span> |
| <span id="246">246</span> |
| <span id="247">247</span> |
| <span id="248">248</span> |
| <span id="249">249</span> |
| <span id="250">250</span> |
| <span id="251">251</span> |
| <span id="252">252</span> |
| <span id="253">253</span> |
| <span id="254">254</span> |
| <span id="255">255</span> |
| <span id="256">256</span> |
| <span id="257">257</span> |
| <span id="258">258</span> |
| <span id="259">259</span> |
| <span id="260">260</span> |
| <span id="261">261</span> |
| <span id="262">262</span> |
| <span id="263">263</span> |
| <span id="264">264</span> |
| <span id="265">265</span> |
| <span id="266">266</span> |
| <span id="267">267</span> |
| <span id="268">268</span> |
| <span id="269">269</span> |
| <span id="270">270</span> |
| <span id="271">271</span> |
| <span id="272">272</span> |
| <span id="273">273</span> |
| <span id="274">274</span> |
| <span id="275">275</span> |
| <span id="276">276</span> |
| <span id="277">277</span> |
| <span id="278">278</span> |
| <span id="279">279</span> |
| <span id="280">280</span> |
| <span id="281">281</span> |
| <span id="282">282</span> |
| <span id="283">283</span> |
| <span id="284">284</span> |
| <span id="285">285</span> |
| <span id="286">286</span> |
| <span id="287">287</span> |
| <span id="288">288</span> |
| <span id="289">289</span> |
| <span id="290">290</span> |
| <span id="291">291</span> |
| <span id="292">292</span> |
| <span id="293">293</span> |
| <span id="294">294</span> |
| <span id="295">295</span> |
| <span id="296">296</span> |
| <span id="297">297</span> |
| <span id="298">298</span> |
| <span id="299">299</span> |
| <span id="300">300</span> |
| <span id="301">301</span> |
| <span id="302">302</span> |
| <span id="303">303</span> |
| <span id="304">304</span> |
| <span id="305">305</span> |
| <span id="306">306</span> |
| <span id="307">307</span> |
| <span id="308">308</span> |
| <span id="309">309</span> |
| <span id="310">310</span> |
| <span id="311">311</span> |
| <span id="312">312</span> |
| <span id="313">313</span> |
| <span id="314">314</span> |
| <span id="315">315</span> |
| <span id="316">316</span> |
| <span id="317">317</span> |
| <span id="318">318</span> |
| <span id="319">319</span> |
| <span id="320">320</span> |
| <span id="321">321</span> |
| <span id="322">322</span> |
| <span id="323">323</span> |
| <span id="324">324</span> |
| <span id="325">325</span> |
| <span id="326">326</span> |
| <span id="327">327</span> |
| <span id="328">328</span> |
| <span id="329">329</span> |
| <span id="330">330</span> |
| <span id="331">331</span> |
| <span id="332">332</span> |
| <span id="333">333</span> |
| <span id="334">334</span> |
| <span id="335">335</span> |
| <span id="336">336</span> |
| <span id="337">337</span> |
| <span id="338">338</span> |
| <span id="339">339</span> |
| <span id="340">340</span> |
| <span id="341">341</span> |
| <span id="342">342</span> |
| <span id="343">343</span> |
| <span id="344">344</span> |
| <span id="345">345</span> |
| <span id="346">346</span> |
| <span id="347">347</span> |
| <span id="348">348</span> |
| <span id="349">349</span> |
| <span id="350">350</span> |
| <span id="351">351</span> |
| <span id="352">352</span> |
| <span id="353">353</span> |
| <span id="354">354</span> |
| <span id="355">355</span> |
| <span id="356">356</span> |
| <span id="357">357</span> |
| <span id="358">358</span> |
| <span id="359">359</span> |
| <span id="360">360</span> |
| <span id="361">361</span> |
| <span id="362">362</span> |
| <span id="363">363</span> |
| <span id="364">364</span> |
| <span id="365">365</span> |
| <span id="366">366</span> |
| <span id="367">367</span> |
| <span id="368">368</span> |
| <span id="369">369</span> |
| <span id="370">370</span> |
| <span id="371">371</span> |
| <span id="372">372</span> |
| <span id="373">373</span> |
| <span id="374">374</span> |
| <span id="375">375</span> |
| <span id="376">376</span> |
| <span id="377">377</span> |
| <span id="378">378</span> |
| <span id="379">379</span> |
| <span id="380">380</span> |
| <span id="381">381</span> |
| <span id="382">382</span> |
| <span id="383">383</span> |
| <span id="384">384</span> |
| <span id="385">385</span> |
| <span id="386">386</span> |
| <span id="387">387</span> |
| <span id="388">388</span> |
| <span id="389">389</span> |
| <span id="390">390</span> |
| <span id="391">391</span> |
| <span id="392">392</span> |
| <span id="393">393</span> |
| <span id="394">394</span> |
| <span id="395">395</span> |
| <span id="396">396</span> |
| <span id="397">397</span> |
| <span id="398">398</span> |
| <span id="399">399</span> |
| <span id="400">400</span> |
| <span id="401">401</span> |
| <span id="402">402</span> |
| <span id="403">403</span> |
| <span id="404">404</span> |
| <span id="405">405</span> |
| <span id="406">406</span> |
| <span id="407">407</span> |
| <span id="408">408</span> |
| <span id="409">409</span> |
| <span id="410">410</span> |
| <span id="411">411</span> |
| <span id="412">412</span> |
| <span id="413">413</span> |
| <span id="414">414</span> |
| <span id="415">415</span> |
| <span id="416">416</span> |
| <span id="417">417</span> |
| <span id="418">418</span> |
| <span id="419">419</span> |
| <span id="420">420</span> |
| <span id="421">421</span> |
| <span id="422">422</span> |
| <span id="423">423</span> |
| <span id="424">424</span> |
| <span id="425">425</span> |
| <span id="426">426</span> |
| <span id="427">427</span> |
| <span id="428">428</span> |
| <span id="429">429</span> |
| <span id="430">430</span> |
| <span id="431">431</span> |
| <span id="432">432</span> |
| <span id="433">433</span> |
| <span id="434">434</span> |
| <span id="435">435</span> |
| <span id="436">436</span> |
| <span id="437">437</span> |
| <span id="438">438</span> |
| <span id="439">439</span> |
| <span id="440">440</span> |
| <span id="441">441</span> |
| <span id="442">442</span> |
| <span id="443">443</span> |
| <span id="444">444</span> |
| <span id="445">445</span> |
| <span id="446">446</span> |
| <span id="447">447</span> |
| <span id="448">448</span> |
| <span id="449">449</span> |
| <span id="450">450</span> |
| <span id="451">451</span> |
| <span id="452">452</span> |
| <span id="453">453</span> |
| <span id="454">454</span> |
| <span id="455">455</span> |
| <span id="456">456</span> |
| <span id="457">457</span> |
| <span id="458">458</span> |
| <span id="459">459</span> |
| <span id="460">460</span> |
| <span id="461">461</span> |
| <span id="462">462</span> |
| <span id="463">463</span> |
| <span id="464">464</span> |
| <span id="465">465</span> |
| <span id="466">466</span> |
| <span id="467">467</span> |
| <span id="468">468</span> |
| <span id="469">469</span> |
| <span id="470">470</span> |
| <span id="471">471</span> |
| <span id="472">472</span> |
| <span id="473">473</span> |
| <span id="474">474</span> |
| <span id="475">475</span> |
| <span id="476">476</span> |
| <span id="477">477</span> |
| <span id="478">478</span> |
| <span id="479">479</span> |
| <span id="480">480</span> |
| <span id="481">481</span> |
| <span id="482">482</span> |
| <span id="483">483</span> |
| <span id="484">484</span> |
| <span id="485">485</span> |
| <span id="486">486</span> |
| <span id="487">487</span> |
| <span id="488">488</span> |
| <span id="489">489</span> |
| <span id="490">490</span> |
| <span id="491">491</span> |
| <span id="492">492</span> |
| <span id="493">493</span> |
| <span id="494">494</span> |
| <span id="495">495</span> |
| <span id="496">496</span> |
| <span id="497">497</span> |
| <span id="498">498</span> |
| <span id="499">499</span> |
| <span id="500">500</span> |
| <span id="501">501</span> |
| <span id="502">502</span> |
| <span id="503">503</span> |
| <span id="504">504</span> |
| <span id="505">505</span> |
| <span id="506">506</span> |
| <span id="507">507</span> |
| <span id="508">508</span> |
| <span id="509">509</span> |
| <span id="510">510</span> |
| <span id="511">511</span> |
| <span id="512">512</span> |
| <span id="513">513</span> |
| <span id="514">514</span> |
| <span id="515">515</span> |
| <span id="516">516</span> |
| <span id="517">517</span> |
| <span id="518">518</span> |
| <span id="519">519</span> |
| <span id="520">520</span> |
| <span id="521">521</span> |
| <span id="522">522</span> |
| <span id="523">523</span> |
| <span id="524">524</span> |
| <span id="525">525</span> |
| <span id="526">526</span> |
| <span id="527">527</span> |
| <span id="528">528</span> |
| <span id="529">529</span> |
| <span id="530">530</span> |
| <span id="531">531</span> |
| <span id="532">532</span> |
| <span id="533">533</span> |
| <span id="534">534</span> |
| <span id="535">535</span> |
| <span id="536">536</span> |
| <span id="537">537</span> |
| <span id="538">538</span> |
| <span id="539">539</span> |
| <span id="540">540</span> |
| <span id="541">541</span> |
| <span id="542">542</span> |
| <span id="543">543</span> |
| <span id="544">544</span> |
| <span id="545">545</span> |
| <span id="546">546</span> |
| <span id="547">547</span> |
| <span id="548">548</span> |
| <span id="549">549</span> |
| <span id="550">550</span> |
| <span id="551">551</span> |
| <span id="552">552</span> |
| <span id="553">553</span> |
| <span id="554">554</span> |
| <span id="555">555</span> |
| <span id="556">556</span> |
| <span id="557">557</span> |
| <span id="558">558</span> |
| <span id="559">559</span> |
| <span id="560">560</span> |
| <span id="561">561</span> |
| <span id="562">562</span> |
| <span id="563">563</span> |
| <span id="564">564</span> |
| <span id="565">565</span> |
| <span id="566">566</span> |
| <span id="567">567</span> |
| <span id="568">568</span> |
| <span id="569">569</span> |
| <span id="570">570</span> |
| <span id="571">571</span> |
| <span id="572">572</span> |
| <span id="573">573</span> |
| <span id="574">574</span> |
| <span id="575">575</span> |
| <span id="576">576</span> |
| <span id="577">577</span> |
| <span id="578">578</span> |
| <span id="579">579</span> |
| <span id="580">580</span> |
| <span id="581">581</span> |
| <span id="582">582</span> |
| <span id="583">583</span> |
| <span id="584">584</span> |
| <span id="585">585</span> |
| <span id="586">586</span> |
| <span id="587">587</span> |
| <span id="588">588</span> |
| <span id="589">589</span> |
| <span id="590">590</span> |
| <span id="591">591</span> |
| <span id="592">592</span> |
| <span id="593">593</span> |
| <span id="594">594</span> |
| <span id="595">595</span> |
| <span id="596">596</span> |
| <span id="597">597</span> |
| <span id="598">598</span> |
| <span id="599">599</span> |
| <span id="600">600</span> |
| <span id="601">601</span> |
| <span id="602">602</span> |
| <span id="603">603</span> |
| <span id="604">604</span> |
| <span id="605">605</span> |
| <span id="606">606</span> |
| <span id="607">607</span> |
| <span id="608">608</span> |
| <span id="609">609</span> |
| <span id="610">610</span> |
| <span id="611">611</span> |
| <span id="612">612</span> |
| <span id="613">613</span> |
| <span id="614">614</span> |
| <span id="615">615</span> |
| <span id="616">616</span> |
| <span id="617">617</span> |
| <span id="618">618</span> |
| <span id="619">619</span> |
| <span id="620">620</span> |
| <span id="621">621</span> |
| <span id="622">622</span> |
| <span id="623">623</span> |
| <span id="624">624</span> |
| <span id="625">625</span> |
| <span id="626">626</span> |
| <span id="627">627</span> |
| <span id="628">628</span> |
| <span id="629">629</span> |
| <span id="630">630</span> |
| <span id="631">631</span> |
| <span id="632">632</span> |
| <span id="633">633</span> |
| <span id="634">634</span> |
| <span id="635">635</span> |
| <span id="636">636</span> |
| <span id="637">637</span> |
| <span id="638">638</span> |
| <span id="639">639</span> |
| <span id="640">640</span> |
| <span id="641">641</span> |
| <span id="642">642</span> |
| <span id="643">643</span> |
| <span id="644">644</span> |
| <span id="645">645</span> |
| <span id="646">646</span> |
| <span id="647">647</span> |
| <span id="648">648</span> |
| <span id="649">649</span> |
| <span id="650">650</span> |
| <span id="651">651</span> |
| <span id="652">652</span> |
| <span id="653">653</span> |
| <span id="654">654</span> |
| <span id="655">655</span> |
| <span id="656">656</span> |
| <span id="657">657</span> |
| <span id="658">658</span> |
| <span id="659">659</span> |
| <span id="660">660</span> |
| <span id="661">661</span> |
| <span id="662">662</span> |
| <span id="663">663</span> |
| <span id="664">664</span> |
| <span id="665">665</span> |
| <span id="666">666</span> |
| <span id="667">667</span> |
| <span id="668">668</span> |
| <span id="669">669</span> |
| <span id="670">670</span> |
| <span id="671">671</span> |
| <span id="672">672</span> |
| <span id="673">673</span> |
| <span id="674">674</span> |
| <span id="675">675</span> |
| <span id="676">676</span> |
| <span id="677">677</span> |
| <span id="678">678</span> |
| <span id="679">679</span> |
| <span id="680">680</span> |
| <span id="681">681</span> |
| <span id="682">682</span> |
| <span id="683">683</span> |
| <span id="684">684</span> |
| <span id="685">685</span> |
| <span id="686">686</span> |
| <span id="687">687</span> |
| <span id="688">688</span> |
| <span id="689">689</span> |
| <span id="690">690</span> |
| <span id="691">691</span> |
| <span id="692">692</span> |
| <span id="693">693</span> |
| <span id="694">694</span> |
| <span id="695">695</span> |
| <span id="696">696</span> |
| <span id="697">697</span> |
| <span id="698">698</span> |
| <span id="699">699</span> |
| <span id="700">700</span> |
| <span id="701">701</span> |
| <span id="702">702</span> |
| <span id="703">703</span> |
| <span id="704">704</span> |
| <span id="705">705</span> |
| <span id="706">706</span> |
| <span id="707">707</span> |
| <span id="708">708</span> |
| <span id="709">709</span> |
| <span id="710">710</span> |
| <span id="711">711</span> |
| <span id="712">712</span> |
| <span id="713">713</span> |
| <span id="714">714</span> |
| <span id="715">715</span> |
| <span id="716">716</span> |
| <span id="717">717</span> |
| <span id="718">718</span> |
| <span id="719">719</span> |
| <span id="720">720</span> |
| <span id="721">721</span> |
| <span id="722">722</span> |
| <span id="723">723</span> |
| <span id="724">724</span> |
| <span id="725">725</span> |
| <span id="726">726</span> |
| <span id="727">727</span> |
| <span id="728">728</span> |
| <span id="729">729</span> |
| <span id="730">730</span> |
| <span id="731">731</span> |
| <span id="732">732</span> |
| <span id="733">733</span> |
| <span id="734">734</span> |
| <span id="735">735</span> |
| <span id="736">736</span> |
| <span id="737">737</span> |
| <span id="738">738</span> |
| <span id="739">739</span> |
| <span id="740">740</span> |
| <span id="741">741</span> |
| <span id="742">742</span> |
| <span id="743">743</span> |
| <span id="744">744</span> |
| <span id="745">745</span> |
| <span id="746">746</span> |
| <span id="747">747</span> |
| <span id="748">748</span> |
| <span id="749">749</span> |
| <span id="750">750</span> |
| <span id="751">751</span> |
| <span id="752">752</span> |
| <span id="753">753</span> |
| <span id="754">754</span> |
| <span id="755">755</span> |
| <span id="756">756</span> |
| <span id="757">757</span> |
| <span id="758">758</span> |
| <span id="759">759</span> |
| <span id="760">760</span> |
| <span id="761">761</span> |
| <span id="762">762</span> |
| <span id="763">763</span> |
| <span id="764">764</span> |
| <span id="765">765</span> |
| <span id="766">766</span> |
| <span id="767">767</span> |
| <span id="768">768</span> |
| <span id="769">769</span> |
| <span id="770">770</span> |
| <span id="771">771</span> |
| <span id="772">772</span> |
| <span id="773">773</span> |
| <span id="774">774</span> |
| <span id="775">775</span> |
| <span id="776">776</span> |
| <span id="777">777</span> |
| <span id="778">778</span> |
| <span id="779">779</span> |
| <span id="780">780</span> |
| <span id="781">781</span> |
| <span id="782">782</span> |
| <span id="783">783</span> |
| <span id="784">784</span> |
| <span id="785">785</span> |
| <span id="786">786</span> |
| <span id="787">787</span> |
| <span id="788">788</span> |
| <span id="789">789</span> |
| <span id="790">790</span> |
| <span id="791">791</span> |
| <span id="792">792</span> |
| <span id="793">793</span> |
| <span id="794">794</span> |
| <span id="795">795</span> |
| <span id="796">796</span> |
| <span id="797">797</span> |
| <span id="798">798</span> |
| <span id="799">799</span> |
| <span id="800">800</span> |
| <span id="801">801</span> |
| <span id="802">802</span> |
| <span id="803">803</span> |
| <span id="804">804</span> |
| <span id="805">805</span> |
| <span id="806">806</span> |
| <span id="807">807</span> |
| <span id="808">808</span> |
| <span id="809">809</span> |
| <span id="810">810</span> |
| <span id="811">811</span> |
| <span id="812">812</span> |
| <span id="813">813</span> |
| <span id="814">814</span> |
| <span id="815">815</span> |
| <span id="816">816</span> |
| <span id="817">817</span> |
| <span id="818">818</span> |
| <span id="819">819</span> |
| <span id="820">820</span> |
| <span id="821">821</span> |
| <span id="822">822</span> |
| <span id="823">823</span> |
| <span id="824">824</span> |
| <span id="825">825</span> |
| <span id="826">826</span> |
| <span id="827">827</span> |
| <span id="828">828</span> |
| <span id="829">829</span> |
| <span id="830">830</span> |
| <span id="831">831</span> |
| <span id="832">832</span> |
| <span id="833">833</span> |
| <span id="834">834</span> |
| <span id="835">835</span> |
| <span id="836">836</span> |
| <span id="837">837</span> |
| <span id="838">838</span> |
| <span id="839">839</span> |
| <span id="840">840</span> |
| <span id="841">841</span> |
| <span id="842">842</span> |
| <span id="843">843</span> |
| <span id="844">844</span> |
| <span id="845">845</span> |
| <span id="846">846</span> |
| <span id="847">847</span> |
| <span id="848">848</span> |
| <span id="849">849</span> |
| <span id="850">850</span> |
| <span id="851">851</span> |
| <span id="852">852</span> |
| <span id="853">853</span> |
| <span id="854">854</span> |
| <span id="855">855</span> |
| <span id="856">856</span> |
| <span id="857">857</span> |
| <span id="858">858</span> |
| <span id="859">859</span> |
| <span id="860">860</span> |
| <span id="861">861</span> |
| <span id="862">862</span> |
| <span id="863">863</span> |
| <span id="864">864</span> |
| <span id="865">865</span> |
| <span id="866">866</span> |
| <span id="867">867</span> |
| <span id="868">868</span> |
| <span id="869">869</span> |
| <span id="870">870</span> |
| <span id="871">871</span> |
| <span id="872">872</span> |
| <span id="873">873</span> |
| <span id="874">874</span> |
| <span id="875">875</span> |
| <span id="876">876</span> |
| <span id="877">877</span> |
| <span id="878">878</span> |
| <span id="879">879</span> |
| <span id="880">880</span> |
| <span id="881">881</span> |
| <span id="882">882</span> |
| <span id="883">883</span> |
| <span id="884">884</span> |
| <span id="885">885</span> |
| <span id="886">886</span> |
| <span id="887">887</span> |
| <span id="888">888</span> |
| <span id="889">889</span> |
| <span id="890">890</span> |
| <span id="891">891</span> |
| <span id="892">892</span> |
| <span id="893">893</span> |
| <span id="894">894</span> |
| <span id="895">895</span> |
| <span id="896">896</span> |
| <span id="897">897</span> |
| <span id="898">898</span> |
| <span id="899">899</span> |
| <span id="900">900</span> |
| <span id="901">901</span> |
| <span id="902">902</span> |
| <span id="903">903</span> |
| <span id="904">904</span> |
| <span id="905">905</span> |
| <span id="906">906</span> |
| <span id="907">907</span> |
| <span id="908">908</span> |
| <span id="909">909</span> |
| <span id="910">910</span> |
| <span id="911">911</span> |
| <span id="912">912</span> |
| <span id="913">913</span> |
| <span id="914">914</span> |
| <span id="915">915</span> |
| <span id="916">916</span> |
| <span id="917">917</span> |
| <span id="918">918</span> |
| <span id="919">919</span> |
| <span id="920">920</span> |
| <span id="921">921</span> |
| <span id="922">922</span> |
| <span id="923">923</span> |
| <span id="924">924</span> |
| <span id="925">925</span> |
| <span id="926">926</span> |
| <span id="927">927</span> |
| <span id="928">928</span> |
| <span id="929">929</span> |
| <span id="930">930</span> |
| <span id="931">931</span> |
| <span id="932">932</span> |
| <span id="933">933</span> |
| <span id="934">934</span> |
| <span id="935">935</span> |
| <span id="936">936</span> |
| <span id="937">937</span> |
| <span id="938">938</span> |
| <span id="939">939</span> |
| <span id="940">940</span> |
| <span id="941">941</span> |
| <span id="942">942</span> |
| <span id="943">943</span> |
| <span id="944">944</span> |
| <span id="945">945</span> |
| <span id="946">946</span> |
| <span id="947">947</span> |
| <span id="948">948</span> |
| <span id="949">949</span> |
| <span id="950">950</span> |
| <span id="951">951</span> |
| <span id="952">952</span> |
| <span id="953">953</span> |
| <span id="954">954</span> |
| <span id="955">955</span> |
| <span id="956">956</span> |
| <span id="957">957</span> |
| <span id="958">958</span> |
| <span id="959">959</span> |
| <span id="960">960</span> |
| <span id="961">961</span> |
| <span id="962">962</span> |
| <span id="963">963</span> |
| <span id="964">964</span> |
| <span id="965">965</span> |
| <span id="966">966</span> |
| <span id="967">967</span> |
| <span id="968">968</span> |
| <span id="969">969</span> |
| <span id="970">970</span> |
| <span id="971">971</span> |
| <span id="972">972</span> |
| <span id="973">973</span> |
| <span id="974">974</span> |
| <span id="975">975</span> |
| <span id="976">976</span> |
| <span id="977">977</span> |
| <span id="978">978</span> |
| <span id="979">979</span> |
| <span id="980">980</span> |
| <span id="981">981</span> |
| <span id="982">982</span> |
| <span id="983">983</span> |
| <span id="984">984</span> |
| <span id="985">985</span> |
| <span id="986">986</span> |
| <span id="987">987</span> |
| <span id="988">988</span> |
| <span id="989">989</span> |
| <span id="990">990</span> |
| <span id="991">991</span> |
| <span id="992">992</span> |
| <span id="993">993</span> |
| <span id="994">994</span> |
| <span id="995">995</span> |
| <span id="996">996</span> |
| <span id="997">997</span> |
| <span id="998">998</span> |
| <span id="999">999</span> |
| <span id="1000">1000</span> |
| <span id="1001">1001</span> |
| <span id="1002">1002</span> |
| <span id="1003">1003</span> |
| <span id="1004">1004</span> |
| <span id="1005">1005</span> |
| <span id="1006">1006</span> |
| <span id="1007">1007</span> |
| <span id="1008">1008</span> |
| <span id="1009">1009</span> |
| <span id="1010">1010</span> |
| <span id="1011">1011</span> |
| <span id="1012">1012</span> |
| <span id="1013">1013</span> |
| <span id="1014">1014</span> |
| <span id="1015">1015</span> |
| <span id="1016">1016</span> |
| <span id="1017">1017</span> |
| <span id="1018">1018</span> |
| <span id="1019">1019</span> |
| <span id="1020">1020</span> |
| <span id="1021">1021</span> |
| <span id="1022">1022</span> |
| <span id="1023">1023</span> |
| <span id="1024">1024</span> |
| <span id="1025">1025</span> |
| <span id="1026">1026</span> |
| <span id="1027">1027</span> |
| <span id="1028">1028</span> |
| <span id="1029">1029</span> |
| <span id="1030">1030</span> |
| <span id="1031">1031</span> |
| <span id="1032">1032</span> |
| <span id="1033">1033</span> |
| <span id="1034">1034</span> |
| <span id="1035">1035</span> |
| <span id="1036">1036</span> |
| <span id="1037">1037</span> |
| <span id="1038">1038</span> |
| <span id="1039">1039</span> |
| <span id="1040">1040</span> |
| <span id="1041">1041</span> |
| <span id="1042">1042</span> |
| <span id="1043">1043</span> |
| <span id="1044">1044</span> |
| <span id="1045">1045</span> |
| <span id="1046">1046</span> |
| <span id="1047">1047</span> |
| <span id="1048">1048</span> |
| <span id="1049">1049</span> |
| <span id="1050">1050</span> |
| <span id="1051">1051</span> |
| <span id="1052">1052</span> |
| <span id="1053">1053</span> |
| <span id="1054">1054</span> |
| <span id="1055">1055</span> |
| <span id="1056">1056</span> |
| <span id="1057">1057</span> |
| <span id="1058">1058</span> |
| <span id="1059">1059</span> |
| <span id="1060">1060</span> |
| <span id="1061">1061</span> |
| <span id="1062">1062</span> |
| <span id="1063">1063</span> |
| <span id="1064">1064</span> |
| <span id="1065">1065</span> |
| <span id="1066">1066</span> |
| <span id="1067">1067</span> |
| <span id="1068">1068</span> |
| <span id="1069">1069</span> |
| <span id="1070">1070</span> |
| <span id="1071">1071</span> |
| <span id="1072">1072</span> |
| <span id="1073">1073</span> |
| <span id="1074">1074</span> |
| <span id="1075">1075</span> |
| <span id="1076">1076</span> |
| <span id="1077">1077</span> |
| <span id="1078">1078</span> |
| <span id="1079">1079</span> |
| <span id="1080">1080</span> |
| <span id="1081">1081</span> |
| <span id="1082">1082</span> |
| <span id="1083">1083</span> |
| <span id="1084">1084</span> |
| <span id="1085">1085</span> |
| <span id="1086">1086</span> |
| <span id="1087">1087</span> |
| <span id="1088">1088</span> |
| <span id="1089">1089</span> |
| <span id="1090">1090</span> |
| <span id="1091">1091</span> |
| <span id="1092">1092</span> |
| <span id="1093">1093</span> |
| <span id="1094">1094</span> |
| <span id="1095">1095</span> |
| <span id="1096">1096</span> |
| <span id="1097">1097</span> |
| <span id="1098">1098</span> |
| <span id="1099">1099</span> |
| <span id="1100">1100</span> |
| <span id="1101">1101</span> |
| <span id="1102">1102</span> |
| <span id="1103">1103</span> |
| <span id="1104">1104</span> |
| <span id="1105">1105</span> |
| <span id="1106">1106</span> |
| <span id="1107">1107</span> |
| <span id="1108">1108</span> |
| <span id="1109">1109</span> |
| <span id="1110">1110</span> |
| <span id="1111">1111</span> |
| <span id="1112">1112</span> |
| <span id="1113">1113</span> |
| <span id="1114">1114</span> |
| <span id="1115">1115</span> |
| <span id="1116">1116</span> |
| <span id="1117">1117</span> |
| <span id="1118">1118</span> |
| <span id="1119">1119</span> |
| <span id="1120">1120</span> |
| <span id="1121">1121</span> |
| <span id="1122">1122</span> |
| <span id="1123">1123</span> |
| <span id="1124">1124</span> |
| <span id="1125">1125</span> |
| <span id="1126">1126</span> |
| <span id="1127">1127</span> |
| <span id="1128">1128</span> |
| <span id="1129">1129</span> |
| <span id="1130">1130</span> |
| <span id="1131">1131</span> |
| <span id="1132">1132</span> |
| <span id="1133">1133</span> |
| <span id="1134">1134</span> |
| <span id="1135">1135</span> |
| <span id="1136">1136</span> |
| <span id="1137">1137</span> |
| <span id="1138">1138</span> |
| <span id="1139">1139</span> |
| <span id="1140">1140</span> |
| <span id="1141">1141</span> |
| <span id="1142">1142</span> |
| <span id="1143">1143</span> |
| <span id="1144">1144</span> |
| <span id="1145">1145</span> |
| <span id="1146">1146</span> |
| <span id="1147">1147</span> |
| <span id="1148">1148</span> |
| <span id="1149">1149</span> |
| <span id="1150">1150</span> |
| <span id="1151">1151</span> |
| <span id="1152">1152</span> |
| <span id="1153">1153</span> |
| <span id="1154">1154</span> |
| <span id="1155">1155</span> |
| <span id="1156">1156</span> |
| <span id="1157">1157</span> |
| <span id="1158">1158</span> |
| <span id="1159">1159</span> |
| <span id="1160">1160</span> |
| <span id="1161">1161</span> |
| <span id="1162">1162</span> |
| <span id="1163">1163</span> |
| <span id="1164">1164</span> |
| <span id="1165">1165</span> |
| <span id="1166">1166</span> |
| <span id="1167">1167</span> |
| <span id="1168">1168</span> |
| <span id="1169">1169</span> |
| <span id="1170">1170</span> |
| <span id="1171">1171</span> |
| <span id="1172">1172</span> |
| <span id="1173">1173</span> |
| <span id="1174">1174</span> |
| <span id="1175">1175</span> |
| <span id="1176">1176</span> |
| <span id="1177">1177</span> |
| <span id="1178">1178</span> |
| <span id="1179">1179</span> |
| <span id="1180">1180</span> |
| <span id="1181">1181</span> |
| <span id="1182">1182</span> |
| <span id="1183">1183</span> |
| <span id="1184">1184</span> |
| <span id="1185">1185</span> |
| <span id="1186">1186</span> |
| <span id="1187">1187</span> |
| <span id="1188">1188</span> |
| <span id="1189">1189</span> |
| <span id="1190">1190</span> |
| <span id="1191">1191</span> |
| <span id="1192">1192</span> |
| <span id="1193">1193</span> |
| <span id="1194">1194</span> |
| <span id="1195">1195</span> |
| <span id="1196">1196</span> |
| <span id="1197">1197</span> |
| <span id="1198">1198</span> |
| <span id="1199">1199</span> |
| <span id="1200">1200</span> |
| <span id="1201">1201</span> |
| <span id="1202">1202</span> |
| <span id="1203">1203</span> |
| <span id="1204">1204</span> |
| <span id="1205">1205</span> |
| <span id="1206">1206</span> |
| <span id="1207">1207</span> |
| <span id="1208">1208</span> |
| <span id="1209">1209</span> |
| <span id="1210">1210</span> |
| <span id="1211">1211</span> |
| <span id="1212">1212</span> |
| <span id="1213">1213</span> |
| <span id="1214">1214</span> |
| <span id="1215">1215</span> |
| <span id="1216">1216</span> |
| <span id="1217">1217</span> |
| <span id="1218">1218</span> |
| <span id="1219">1219</span> |
| <span id="1220">1220</span> |
| <span id="1221">1221</span> |
| <span id="1222">1222</span> |
| <span id="1223">1223</span> |
| <span id="1224">1224</span> |
| <span id="1225">1225</span> |
| <span id="1226">1226</span> |
| <span id="1227">1227</span> |
| <span id="1228">1228</span> |
| <span id="1229">1229</span> |
| <span id="1230">1230</span> |
| <span id="1231">1231</span> |
| <span id="1232">1232</span> |
| <span id="1233">1233</span> |
| <span id="1234">1234</span> |
| <span id="1235">1235</span> |
| <span id="1236">1236</span> |
| <span id="1237">1237</span> |
| <span id="1238">1238</span> |
| <span id="1239">1239</span> |
| <span id="1240">1240</span> |
| <span id="1241">1241</span> |
| <span id="1242">1242</span> |
| <span id="1243">1243</span> |
| <span id="1244">1244</span> |
| <span id="1245">1245</span> |
| <span id="1246">1246</span> |
| <span id="1247">1247</span> |
| <span id="1248">1248</span> |
| <span id="1249">1249</span> |
| <span id="1250">1250</span> |
| <span id="1251">1251</span> |
| <span id="1252">1252</span> |
| <span id="1253">1253</span> |
| <span id="1254">1254</span> |
| <span id="1255">1255</span> |
| <span id="1256">1256</span> |
| <span id="1257">1257</span> |
| <span id="1258">1258</span> |
| <span id="1259">1259</span> |
| <span id="1260">1260</span> |
| <span id="1261">1261</span> |
| <span id="1262">1262</span> |
| <span id="1263">1263</span> |
| <span id="1264">1264</span> |
| <span id="1265">1265</span> |
| <span id="1266">1266</span> |
| <span id="1267">1267</span> |
| <span id="1268">1268</span> |
| <span id="1269">1269</span> |
| <span id="1270">1270</span> |
| <span id="1271">1271</span> |
| <span id="1272">1272</span> |
| <span id="1273">1273</span> |
| <span id="1274">1274</span> |
| <span id="1275">1275</span> |
| <span id="1276">1276</span> |
| <span id="1277">1277</span> |
| <span id="1278">1278</span> |
| <span id="1279">1279</span> |
| <span id="1280">1280</span> |
| <span id="1281">1281</span> |
| <span id="1282">1282</span> |
| <span id="1283">1283</span> |
| <span id="1284">1284</span> |
| <span id="1285">1285</span> |
| <span id="1286">1286</span> |
| <span id="1287">1287</span> |
| <span id="1288">1288</span> |
| <span id="1289">1289</span> |
| <span id="1290">1290</span> |
| <span id="1291">1291</span> |
| <span id="1292">1292</span> |
| <span id="1293">1293</span> |
| <span id="1294">1294</span> |
| <span id="1295">1295</span> |
| <span id="1296">1296</span> |
| <span id="1297">1297</span> |
| <span id="1298">1298</span> |
| <span id="1299">1299</span> |
| <span id="1300">1300</span> |
| <span id="1301">1301</span> |
| <span id="1302">1302</span> |
| <span id="1303">1303</span> |
| <span id="1304">1304</span> |
| <span id="1305">1305</span> |
| <span id="1306">1306</span> |
| <span id="1307">1307</span> |
| <span id="1308">1308</span> |
| <span id="1309">1309</span> |
| <span id="1310">1310</span> |
| <span id="1311">1311</span> |
| <span id="1312">1312</span> |
| <span id="1313">1313</span> |
| <span id="1314">1314</span> |
| <span id="1315">1315</span> |
| <span id="1316">1316</span> |
| <span id="1317">1317</span> |
| <span id="1318">1318</span> |
| <span id="1319">1319</span> |
| <span id="1320">1320</span> |
| <span id="1321">1321</span> |
| <span id="1322">1322</span> |
| <span id="1323">1323</span> |
| <span id="1324">1324</span> |
| <span id="1325">1325</span> |
| <span id="1326">1326</span> |
| <span id="1327">1327</span> |
| <span id="1328">1328</span> |
| <span id="1329">1329</span> |
| <span id="1330">1330</span> |
| <span id="1331">1331</span> |
| <span id="1332">1332</span> |
| <span id="1333">1333</span> |
| <span id="1334">1334</span> |
| <span id="1335">1335</span> |
| <span id="1336">1336</span> |
| <span id="1337">1337</span> |
| <span id="1338">1338</span> |
| <span id="1339">1339</span> |
| <span id="1340">1340</span> |
| <span id="1341">1341</span> |
| <span id="1342">1342</span> |
| <span id="1343">1343</span> |
| <span id="1344">1344</span> |
| <span id="1345">1345</span> |
| <span id="1346">1346</span> |
| <span id="1347">1347</span> |
| <span id="1348">1348</span> |
| <span id="1349">1349</span> |
| <span id="1350">1350</span> |
| <span id="1351">1351</span> |
| <span id="1352">1352</span> |
| <span id="1353">1353</span> |
| <span id="1354">1354</span> |
| <span id="1355">1355</span> |
| <span id="1356">1356</span> |
| <span id="1357">1357</span> |
| <span id="1358">1358</span> |
| <span id="1359">1359</span> |
| <span id="1360">1360</span> |
| <span id="1361">1361</span> |
| <span id="1362">1362</span> |
| <span id="1363">1363</span> |
| <span id="1364">1364</span> |
| <span id="1365">1365</span> |
| <span id="1366">1366</span> |
| <span id="1367">1367</span> |
| <span id="1368">1368</span> |
| <span id="1369">1369</span> |
| <span id="1370">1370</span> |
| <span id="1371">1371</span> |
| <span id="1372">1372</span> |
| <span id="1373">1373</span> |
| <span id="1374">1374</span> |
| <span id="1375">1375</span> |
| <span id="1376">1376</span> |
| <span id="1377">1377</span> |
| <span id="1378">1378</span> |
| <span id="1379">1379</span> |
| <span id="1380">1380</span> |
| <span id="1381">1381</span> |
| <span id="1382">1382</span> |
| <span id="1383">1383</span> |
| <span id="1384">1384</span> |
| <span id="1385">1385</span> |
| <span id="1386">1386</span> |
| <span id="1387">1387</span> |
| <span id="1388">1388</span> |
| <span id="1389">1389</span> |
| <span id="1390">1390</span> |
| <span id="1391">1391</span> |
| <span id="1392">1392</span> |
| <span id="1393">1393</span> |
| <span id="1394">1394</span> |
| <span id="1395">1395</span> |
| <span id="1396">1396</span> |
| <span id="1397">1397</span> |
| <span id="1398">1398</span> |
| <span id="1399">1399</span> |
| <span id="1400">1400</span> |
| <span id="1401">1401</span> |
| <span id="1402">1402</span> |
| <span id="1403">1403</span> |
| <span id="1404">1404</span> |
| <span id="1405">1405</span> |
| <span id="1406">1406</span> |
| <span id="1407">1407</span> |
| <span id="1408">1408</span> |
| <span id="1409">1409</span> |
| <span id="1410">1410</span> |
| <span id="1411">1411</span> |
| <span id="1412">1412</span> |
| <span id="1413">1413</span> |
| <span id="1414">1414</span> |
| <span id="1415">1415</span> |
| <span id="1416">1416</span> |
| <span id="1417">1417</span> |
| <span id="1418">1418</span> |
| <span id="1419">1419</span> |
| <span id="1420">1420</span> |
| <span id="1421">1421</span> |
| <span id="1422">1422</span> |
| <span id="1423">1423</span> |
| <span id="1424">1424</span> |
| <span id="1425">1425</span> |
| <span id="1426">1426</span> |
| <span id="1427">1427</span> |
| <span id="1428">1428</span> |
| <span id="1429">1429</span> |
| <span id="1430">1430</span> |
| <span id="1431">1431</span> |
| <span id="1432">1432</span> |
| <span id="1433">1433</span> |
| <span id="1434">1434</span> |
| <span id="1435">1435</span> |
| <span id="1436">1436</span> |
| <span id="1437">1437</span> |
| <span id="1438">1438</span> |
| <span id="1439">1439</span> |
| <span id="1440">1440</span> |
| <span id="1441">1441</span> |
| <span id="1442">1442</span> |
| <span id="1443">1443</span> |
| <span id="1444">1444</span> |
| <span id="1445">1445</span> |
| <span id="1446">1446</span> |
| <span id="1447">1447</span> |
| <span id="1448">1448</span> |
| <span id="1449">1449</span> |
| <span id="1450">1450</span> |
| <span id="1451">1451</span> |
| <span id="1452">1452</span> |
| <span id="1453">1453</span> |
| <span id="1454">1454</span> |
| <span id="1455">1455</span> |
| <span id="1456">1456</span> |
| <span id="1457">1457</span> |
| <span id="1458">1458</span> |
| <span id="1459">1459</span> |
| <span id="1460">1460</span> |
| <span id="1461">1461</span> |
| <span id="1462">1462</span> |
| <span id="1463">1463</span> |
| <span id="1464">1464</span> |
| <span id="1465">1465</span> |
| <span id="1466">1466</span> |
| <span id="1467">1467</span> |
| <span id="1468">1468</span> |
| <span id="1469">1469</span> |
| <span id="1470">1470</span> |
| <span id="1471">1471</span> |
| <span id="1472">1472</span> |
| <span id="1473">1473</span> |
| <span id="1474">1474</span> |
| <span id="1475">1475</span> |
| <span id="1476">1476</span> |
| <span id="1477">1477</span> |
| <span id="1478">1478</span> |
| <span id="1479">1479</span> |
| <span id="1480">1480</span> |
| <span id="1481">1481</span> |
| <span id="1482">1482</span> |
| <span id="1483">1483</span> |
| <span id="1484">1484</span> |
| <span id="1485">1485</span> |
| <span id="1486">1486</span> |
| <span id="1487">1487</span> |
| <span id="1488">1488</span> |
| <span id="1489">1489</span> |
| <span id="1490">1490</span> |
| <span id="1491">1491</span> |
| <span id="1492">1492</span> |
| <span id="1493">1493</span> |
| <span id="1494">1494</span> |
| <span id="1495">1495</span> |
| <span id="1496">1496</span> |
| <span id="1497">1497</span> |
| <span id="1498">1498</span> |
| <span id="1499">1499</span> |
| <span id="1500">1500</span> |
| <span id="1501">1501</span> |
| <span id="1502">1502</span> |
| <span id="1503">1503</span> |
| <span id="1504">1504</span> |
| <span id="1505">1505</span> |
| <span id="1506">1506</span> |
| <span id="1507">1507</span> |
| <span id="1508">1508</span> |
| <span id="1509">1509</span> |
| <span id="1510">1510</span> |
| <span id="1511">1511</span> |
| <span id="1512">1512</span> |
| <span id="1513">1513</span> |
| <span id="1514">1514</span> |
| <span id="1515">1515</span> |
| <span id="1516">1516</span> |
| <span id="1517">1517</span> |
| <span id="1518">1518</span> |
| <span id="1519">1519</span> |
| <span id="1520">1520</span> |
| <span id="1521">1521</span> |
| <span id="1522">1522</span> |
| <span id="1523">1523</span> |
| <span id="1524">1524</span> |
| <span id="1525">1525</span> |
| <span id="1526">1526</span> |
| <span id="1527">1527</span> |
| <span id="1528">1528</span> |
| <span id="1529">1529</span> |
| <span id="1530">1530</span> |
| <span id="1531">1531</span> |
| <span id="1532">1532</span> |
| <span id="1533">1533</span> |
| <span id="1534">1534</span> |
| <span id="1535">1535</span> |
| <span id="1536">1536</span> |
| <span id="1537">1537</span> |
| <span id="1538">1538</span> |
| <span id="1539">1539</span> |
| <span id="1540">1540</span> |
| <span id="1541">1541</span> |
| <span id="1542">1542</span> |
| <span id="1543">1543</span> |
| <span id="1544">1544</span> |
| <span id="1545">1545</span> |
| <span id="1546">1546</span> |
| <span id="1547">1547</span> |
| <span id="1548">1548</span> |
| <span id="1549">1549</span> |
| <span id="1550">1550</span> |
| <span id="1551">1551</span> |
| <span id="1552">1552</span> |
| <span id="1553">1553</span> |
| <span id="1554">1554</span> |
| <span id="1555">1555</span> |
| <span id="1556">1556</span> |
| <span id="1557">1557</span> |
| <span id="1558">1558</span> |
| <span id="1559">1559</span> |
| <span id="1560">1560</span> |
| <span id="1561">1561</span> |
| <span id="1562">1562</span> |
| <span id="1563">1563</span> |
| <span id="1564">1564</span> |
| <span id="1565">1565</span> |
| <span id="1566">1566</span> |
| <span id="1567">1567</span> |
| <span id="1568">1568</span> |
| <span id="1569">1569</span> |
| <span id="1570">1570</span> |
| <span id="1571">1571</span> |
| <span id="1572">1572</span> |
| <span id="1573">1573</span> |
| <span id="1574">1574</span> |
| <span id="1575">1575</span> |
| <span id="1576">1576</span> |
| <span id="1577">1577</span> |
| <span id="1578">1578</span> |
| <span id="1579">1579</span> |
| <span id="1580">1580</span> |
| <span id="1581">1581</span> |
| <span id="1582">1582</span> |
| <span id="1583">1583</span> |
| <span id="1584">1584</span> |
| <span id="1585">1585</span> |
| <span id="1586">1586</span> |
| <span id="1587">1587</span> |
| <span id="1588">1588</span> |
| <span id="1589">1589</span> |
| <span id="1590">1590</span> |
| <span id="1591">1591</span> |
| <span id="1592">1592</span> |
| <span id="1593">1593</span> |
| <span id="1594">1594</span> |
| <span id="1595">1595</span> |
| <span id="1596">1596</span> |
| <span id="1597">1597</span> |
| <span id="1598">1598</span> |
| <span id="1599">1599</span> |
| <span id="1600">1600</span> |
| <span id="1601">1601</span> |
| <span id="1602">1602</span> |
| <span id="1603">1603</span> |
| <span id="1604">1604</span> |
| <span id="1605">1605</span> |
| <span id="1606">1606</span> |
| <span id="1607">1607</span> |
| <span id="1608">1608</span> |
| <span id="1609">1609</span> |
| <span id="1610">1610</span> |
| <span id="1611">1611</span> |
| <span id="1612">1612</span> |
| <span id="1613">1613</span> |
| <span id="1614">1614</span> |
| <span id="1615">1615</span> |
| <span id="1616">1616</span> |
| <span id="1617">1617</span> |
| <span id="1618">1618</span> |
| <span id="1619">1619</span> |
| <span id="1620">1620</span> |
| <span id="1621">1621</span> |
| <span id="1622">1622</span> |
| <span id="1623">1623</span> |
| <span id="1624">1624</span> |
| <span id="1625">1625</span> |
| <span id="1626">1626</span> |
| <span id="1627">1627</span> |
| <span id="1628">1628</span> |
| <span id="1629">1629</span> |
| <span id="1630">1630</span> |
| <span id="1631">1631</span> |
| <span id="1632">1632</span> |
| <span id="1633">1633</span> |
| <span id="1634">1634</span> |
| <span id="1635">1635</span> |
| <span id="1636">1636</span> |
| <span id="1637">1637</span> |
| <span id="1638">1638</span> |
| <span id="1639">1639</span> |
| <span id="1640">1640</span> |
| <span id="1641">1641</span> |
| <span id="1642">1642</span> |
| <span id="1643">1643</span> |
| <span id="1644">1644</span> |
| <span id="1645">1645</span> |
| <span id="1646">1646</span> |
| <span id="1647">1647</span> |
| <span id="1648">1648</span> |
| <span id="1649">1649</span> |
| <span id="1650">1650</span> |
| <span id="1651">1651</span> |
| <span id="1652">1652</span> |
| <span id="1653">1653</span> |
| <span id="1654">1654</span> |
| <span id="1655">1655</span> |
| <span id="1656">1656</span> |
| <span id="1657">1657</span> |
| <span id="1658">1658</span> |
| <span id="1659">1659</span> |
| <span id="1660">1660</span> |
| <span id="1661">1661</span> |
| <span id="1662">1662</span> |
| <span id="1663">1663</span> |
| <span id="1664">1664</span> |
| <span id="1665">1665</span> |
| <span id="1666">1666</span> |
| <span id="1667">1667</span> |
| <span id="1668">1668</span> |
| <span id="1669">1669</span> |
| <span id="1670">1670</span> |
| <span id="1671">1671</span> |
| <span id="1672">1672</span> |
| <span id="1673">1673</span> |
| <span id="1674">1674</span> |
| <span id="1675">1675</span> |
| <span id="1676">1676</span> |
| <span id="1677">1677</span> |
| <span id="1678">1678</span> |
| <span id="1679">1679</span> |
| <span id="1680">1680</span> |
| <span id="1681">1681</span> |
| <span id="1682">1682</span> |
| <span id="1683">1683</span> |
| <span id="1684">1684</span> |
| <span id="1685">1685</span> |
| <span id="1686">1686</span> |
| <span id="1687">1687</span> |
| <span id="1688">1688</span> |
| <span id="1689">1689</span> |
| <span id="1690">1690</span> |
| <span id="1691">1691</span> |
| <span id="1692">1692</span> |
| <span id="1693">1693</span> |
| <span id="1694">1694</span> |
| <span id="1695">1695</span> |
| <span id="1696">1696</span> |
| <span id="1697">1697</span> |
| <span id="1698">1698</span> |
| <span id="1699">1699</span> |
| <span id="1700">1700</span> |
| <span id="1701">1701</span> |
| <span id="1702">1702</span> |
| <span id="1703">1703</span> |
| <span id="1704">1704</span> |
| <span id="1705">1705</span> |
| <span id="1706">1706</span> |
| <span id="1707">1707</span> |
| <span id="1708">1708</span> |
| <span id="1709">1709</span> |
| <span id="1710">1710</span> |
| <span id="1711">1711</span> |
| <span id="1712">1712</span> |
| <span id="1713">1713</span> |
| <span id="1714">1714</span> |
| <span id="1715">1715</span> |
| <span id="1716">1716</span> |
| <span id="1717">1717</span> |
| <span id="1718">1718</span> |
| <span id="1719">1719</span> |
| <span id="1720">1720</span> |
| <span id="1721">1721</span> |
| <span id="1722">1722</span> |
| <span id="1723">1723</span> |
| <span id="1724">1724</span> |
| <span id="1725">1725</span> |
| <span id="1726">1726</span> |
| <span id="1727">1727</span> |
| <span id="1728">1728</span> |
| <span id="1729">1729</span> |
| <span id="1730">1730</span> |
| <span id="1731">1731</span> |
| <span id="1732">1732</span> |
| <span id="1733">1733</span> |
| <span id="1734">1734</span> |
| <span id="1735">1735</span> |
| <span id="1736">1736</span> |
| <span id="1737">1737</span> |
| <span id="1738">1738</span> |
| <span id="1739">1739</span> |
| <span id="1740">1740</span> |
| <span id="1741">1741</span> |
| <span id="1742">1742</span> |
| <span id="1743">1743</span> |
| <span id="1744">1744</span> |
| <span id="1745">1745</span> |
| <span id="1746">1746</span> |
| <span id="1747">1747</span> |
| <span id="1748">1748</span> |
| <span id="1749">1749</span> |
| <span id="1750">1750</span> |
| <span id="1751">1751</span> |
| <span id="1752">1752</span> |
| <span id="1753">1753</span> |
| <span id="1754">1754</span> |
| <span id="1755">1755</span> |
| <span id="1756">1756</span> |
| <span id="1757">1757</span> |
| <span id="1758">1758</span> |
| <span id="1759">1759</span> |
| <span id="1760">1760</span> |
| <span id="1761">1761</span> |
| <span id="1762">1762</span> |
| <span id="1763">1763</span> |
| <span id="1764">1764</span> |
| <span id="1765">1765</span> |
| <span id="1766">1766</span> |
| <span id="1767">1767</span> |
| <span id="1768">1768</span> |
| <span id="1769">1769</span> |
| <span id="1770">1770</span> |
| <span id="1771">1771</span> |
| <span id="1772">1772</span> |
| <span id="1773">1773</span> |
| <span id="1774">1774</span> |
| <span id="1775">1775</span> |
| <span id="1776">1776</span> |
| <span id="1777">1777</span> |
| <span id="1778">1778</span> |
| <span id="1779">1779</span> |
| <span id="1780">1780</span> |
| <span id="1781">1781</span> |
| <span id="1782">1782</span> |
| <span id="1783">1783</span> |
| <span id="1784">1784</span> |
| <span id="1785">1785</span> |
| <span id="1786">1786</span> |
| <span id="1787">1787</span> |
| <span id="1788">1788</span> |
| <span id="1789">1789</span> |
| <span id="1790">1790</span> |
| <span id="1791">1791</span> |
| <span id="1792">1792</span> |
| <span id="1793">1793</span> |
| <span id="1794">1794</span> |
| <span id="1795">1795</span> |
| <span id="1796">1796</span> |
| <span id="1797">1797</span> |
| <span id="1798">1798</span> |
| <span id="1799">1799</span> |
| <span id="1800">1800</span> |
| <span id="1801">1801</span> |
| <span id="1802">1802</span> |
| <span id="1803">1803</span> |
| <span id="1804">1804</span> |
| <span id="1805">1805</span> |
| <span id="1806">1806</span> |
| <span id="1807">1807</span> |
| <span id="1808">1808</span> |
| <span id="1809">1809</span> |
| <span id="1810">1810</span> |
| <span id="1811">1811</span> |
| <span id="1812">1812</span> |
| <span id="1813">1813</span> |
| <span id="1814">1814</span> |
| <span id="1815">1815</span> |
| <span id="1816">1816</span> |
| <span id="1817">1817</span> |
| <span id="1818">1818</span> |
| <span id="1819">1819</span> |
| <span id="1820">1820</span> |
| <span id="1821">1821</span> |
| <span id="1822">1822</span> |
| <span id="1823">1823</span> |
| <span id="1824">1824</span> |
| <span id="1825">1825</span> |
| <span id="1826">1826</span> |
| <span id="1827">1827</span> |
| <span id="1828">1828</span> |
| <span id="1829">1829</span> |
| <span id="1830">1830</span> |
| <span id="1831">1831</span> |
| <span id="1832">1832</span> |
| <span id="1833">1833</span> |
| <span id="1834">1834</span> |
| <span id="1835">1835</span> |
| <span id="1836">1836</span> |
| <span id="1837">1837</span> |
| <span id="1838">1838</span> |
| <span id="1839">1839</span> |
| <span id="1840">1840</span> |
| <span id="1841">1841</span> |
| <span id="1842">1842</span> |
| <span id="1843">1843</span> |
| <span id="1844">1844</span> |
| <span id="1845">1845</span> |
| <span id="1846">1846</span> |
| <span id="1847">1847</span> |
| <span id="1848">1848</span> |
| <span id="1849">1849</span> |
| <span id="1850">1850</span> |
| <span id="1851">1851</span> |
| <span id="1852">1852</span> |
| <span id="1853">1853</span> |
| <span id="1854">1854</span> |
| <span id="1855">1855</span> |
| <span id="1856">1856</span> |
| <span id="1857">1857</span> |
| <span id="1858">1858</span> |
| <span id="1859">1859</span> |
| <span id="1860">1860</span> |
| <span id="1861">1861</span> |
| <span id="1862">1862</span> |
| <span id="1863">1863</span> |
| <span id="1864">1864</span> |
| <span id="1865">1865</span> |
| <span id="1866">1866</span> |
| <span id="1867">1867</span> |
| <span id="1868">1868</span> |
| <span id="1869">1869</span> |
| <span id="1870">1870</span> |
| <span id="1871">1871</span> |
| <span id="1872">1872</span> |
| <span id="1873">1873</span> |
| <span id="1874">1874</span> |
| <span id="1875">1875</span> |
| <span id="1876">1876</span> |
| <span id="1877">1877</span> |
| <span id="1878">1878</span> |
| <span id="1879">1879</span> |
| <span id="1880">1880</span> |
| <span id="1881">1881</span> |
| <span id="1882">1882</span> |
| <span id="1883">1883</span> |
| <span id="1884">1884</span> |
| <span id="1885">1885</span> |
| <span id="1886">1886</span> |
| <span id="1887">1887</span> |
| <span id="1888">1888</span> |
| <span id="1889">1889</span> |
| <span id="1890">1890</span> |
| <span id="1891">1891</span> |
| <span id="1892">1892</span> |
| <span id="1893">1893</span> |
| <span id="1894">1894</span> |
| <span id="1895">1895</span> |
| <span id="1896">1896</span> |
| <span id="1897">1897</span> |
| <span id="1898">1898</span> |
| <span id="1899">1899</span> |
| <span id="1900">1900</span> |
| <span id="1901">1901</span> |
| <span id="1902">1902</span> |
| <span id="1903">1903</span> |
| <span id="1904">1904</span> |
| <span id="1905">1905</span> |
| <span id="1906">1906</span> |
| <span id="1907">1907</span> |
| <span id="1908">1908</span> |
| <span id="1909">1909</span> |
| <span id="1910">1910</span> |
| <span id="1911">1911</span> |
| <span id="1912">1912</span> |
| <span id="1913">1913</span> |
| <span id="1914">1914</span> |
| <span id="1915">1915</span> |
| <span id="1916">1916</span> |
| <span id="1917">1917</span> |
| <span id="1918">1918</span> |
| <span id="1919">1919</span> |
| <span id="1920">1920</span> |
| <span id="1921">1921</span> |
| <span id="1922">1922</span> |
| <span id="1923">1923</span> |
| <span id="1924">1924</span> |
| <span id="1925">1925</span> |
| <span id="1926">1926</span> |
| <span id="1927">1927</span> |
| <span id="1928">1928</span> |
| <span id="1929">1929</span> |
| <span id="1930">1930</span> |
| <span id="1931">1931</span> |
| <span id="1932">1932</span> |
| <span id="1933">1933</span> |
| <span id="1934">1934</span> |
| <span id="1935">1935</span> |
| <span id="1936">1936</span> |
| <span id="1937">1937</span> |
| <span id="1938">1938</span> |
| <span id="1939">1939</span> |
| <span id="1940">1940</span> |
| <span id="1941">1941</span> |
| <span id="1942">1942</span> |
| <span id="1943">1943</span> |
| <span id="1944">1944</span> |
| <span id="1945">1945</span> |
| <span id="1946">1946</span> |
| <span id="1947">1947</span> |
| <span id="1948">1948</span> |
| <span id="1949">1949</span> |
| <span id="1950">1950</span> |
| <span id="1951">1951</span> |
| <span id="1952">1952</span> |
| <span id="1953">1953</span> |
| <span id="1954">1954</span> |
| <span id="1955">1955</span> |
| <span id="1956">1956</span> |
| <span id="1957">1957</span> |
| <span id="1958">1958</span> |
| <span id="1959">1959</span> |
| <span id="1960">1960</span> |
| <span id="1961">1961</span> |
| <span id="1962">1962</span> |
| <span id="1963">1963</span> |
| <span id="1964">1964</span> |
| <span id="1965">1965</span> |
| <span id="1966">1966</span> |
| <span id="1967">1967</span> |
| <span id="1968">1968</span> |
| <span id="1969">1969</span> |
| <span id="1970">1970</span> |
| <span id="1971">1971</span> |
| <span id="1972">1972</span> |
| <span id="1973">1973</span> |
| <span id="1974">1974</span> |
| <span id="1975">1975</span> |
| <span id="1976">1976</span> |
| <span id="1977">1977</span> |
| <span id="1978">1978</span> |
| <span id="1979">1979</span> |
| <span id="1980">1980</span> |
| <span id="1981">1981</span> |
| <span id="1982">1982</span> |
| <span id="1983">1983</span> |
| <span id="1984">1984</span> |
| <span id="1985">1985</span> |
| <span id="1986">1986</span> |
| <span id="1987">1987</span> |
| <span id="1988">1988</span> |
| <span id="1989">1989</span> |
| <span id="1990">1990</span> |
| <span id="1991">1991</span> |
| <span id="1992">1992</span> |
| <span id="1993">1993</span> |
| <span id="1994">1994</span> |
| <span id="1995">1995</span> |
| <span id="1996">1996</span> |
| <span id="1997">1997</span> |
| <span id="1998">1998</span> |
| <span id="1999">1999</span> |
| <span id="2000">2000</span> |
| <span id="2001">2001</span> |
| <span id="2002">2002</span> |
| <span id="2003">2003</span> |
| <span id="2004">2004</span> |
| <span id="2005">2005</span> |
| <span id="2006">2006</span> |
| <span id="2007">2007</span> |
| <span id="2008">2008</span> |
| <span id="2009">2009</span> |
| <span id="2010">2010</span> |
| <span id="2011">2011</span> |
| <span id="2012">2012</span> |
| <span id="2013">2013</span> |
| <span id="2014">2014</span> |
| <span id="2015">2015</span> |
| <span id="2016">2016</span> |
| <span id="2017">2017</span> |
| <span id="2018">2018</span> |
| <span id="2019">2019</span> |
| <span id="2020">2020</span> |
| <span id="2021">2021</span> |
| <span id="2022">2022</span> |
| <span id="2023">2023</span> |
| <span id="2024">2024</span> |
| <span id="2025">2025</span> |
| <span id="2026">2026</span> |
| <span id="2027">2027</span> |
| <span id="2028">2028</span> |
| <span id="2029">2029</span> |
| <span id="2030">2030</span> |
| <span id="2031">2031</span> |
| <span id="2032">2032</span> |
| <span id="2033">2033</span> |
| <span id="2034">2034</span> |
| <span id="2035">2035</span> |
| <span id="2036">2036</span> |
| <span id="2037">2037</span> |
| <span id="2038">2038</span> |
| <span id="2039">2039</span> |
| <span id="2040">2040</span> |
| <span id="2041">2041</span> |
| <span id="2042">2042</span> |
| <span id="2043">2043</span> |
| <span id="2044">2044</span> |
| <span id="2045">2045</span> |
| <span id="2046">2046</span> |
| <span id="2047">2047</span> |
| <span id="2048">2048</span> |
| <span id="2049">2049</span> |
| <span id="2050">2050</span> |
| <span id="2051">2051</span> |
| <span id="2052">2052</span> |
| <span id="2053">2053</span> |
| <span id="2054">2054</span> |
| <span id="2055">2055</span> |
| <span id="2056">2056</span> |
| <span id="2057">2057</span> |
| <span id="2058">2058</span> |
| <span id="2059">2059</span> |
| <span id="2060">2060</span> |
| <span id="2061">2061</span> |
| <span id="2062">2062</span> |
| <span id="2063">2063</span> |
| <span id="2064">2064</span> |
| <span id="2065">2065</span> |
| <span id="2066">2066</span> |
| <span id="2067">2067</span> |
| <span id="2068">2068</span> |
| <span id="2069">2069</span> |
| <span id="2070">2070</span> |
| <span id="2071">2071</span> |
| <span id="2072">2072</span> |
| <span id="2073">2073</span> |
| <span id="2074">2074</span> |
| <span id="2075">2075</span> |
| <span id="2076">2076</span> |
| <span id="2077">2077</span> |
| <span id="2078">2078</span> |
| <span id="2079">2079</span> |
| <span id="2080">2080</span> |
| <span id="2081">2081</span> |
| <span id="2082">2082</span> |
| <span id="2083">2083</span> |
| <span id="2084">2084</span> |
| <span id="2085">2085</span> |
| <span id="2086">2086</span> |
| <span id="2087">2087</span> |
| <span id="2088">2088</span> |
| <span id="2089">2089</span> |
| <span id="2090">2090</span> |
| <span id="2091">2091</span> |
| <span id="2092">2092</span> |
| <span id="2093">2093</span> |
| <span id="2094">2094</span> |
| <span id="2095">2095</span> |
| <span id="2096">2096</span> |
| <span id="2097">2097</span> |
| <span id="2098">2098</span> |
| <span id="2099">2099</span> |
| <span id="2100">2100</span> |
| <span id="2101">2101</span> |
| <span id="2102">2102</span> |
| <span id="2103">2103</span> |
| <span id="2104">2104</span> |
| <span id="2105">2105</span> |
| <span id="2106">2106</span> |
| <span id="2107">2107</span> |
| <span id="2108">2108</span> |
| <span id="2109">2109</span> |
| <span id="2110">2110</span> |
| <span id="2111">2111</span> |
| <span id="2112">2112</span> |
| <span id="2113">2113</span> |
| <span id="2114">2114</span> |
| <span id="2115">2115</span> |
| <span id="2116">2116</span> |
| <span id="2117">2117</span> |
| <span id="2118">2118</span> |
| <span id="2119">2119</span> |
| <span id="2120">2120</span> |
| <span id="2121">2121</span> |
| <span id="2122">2122</span> |
| <span id="2123">2123</span> |
| <span id="2124">2124</span> |
| <span id="2125">2125</span> |
| <span id="2126">2126</span> |
| <span id="2127">2127</span> |
| <span id="2128">2128</span> |
| <span id="2129">2129</span> |
| <span id="2130">2130</span> |
| <span id="2131">2131</span> |
| <span id="2132">2132</span> |
| <span id="2133">2133</span> |
| <span id="2134">2134</span> |
| <span id="2135">2135</span> |
| <span id="2136">2136</span> |
| <span id="2137">2137</span> |
| <span id="2138">2138</span> |
| <span id="2139">2139</span> |
| <span id="2140">2140</span> |
| <span id="2141">2141</span> |
| <span id="2142">2142</span> |
| <span id="2143">2143</span> |
| <span id="2144">2144</span> |
| <span id="2145">2145</span> |
| <span id="2146">2146</span> |
| <span id="2147">2147</span> |
| <span id="2148">2148</span> |
| <span id="2149">2149</span> |
| <span id="2150">2150</span> |
| <span id="2151">2151</span> |
| <span id="2152">2152</span> |
| <span id="2153">2153</span> |
| <span id="2154">2154</span> |
| <span id="2155">2155</span> |
| <span id="2156">2156</span> |
| <span id="2157">2157</span> |
| <span id="2158">2158</span> |
| <span id="2159">2159</span> |
| <span id="2160">2160</span> |
| <span id="2161">2161</span> |
| <span id="2162">2162</span> |
| <span id="2163">2163</span> |
| <span id="2164">2164</span> |
| <span id="2165">2165</span> |
| <span id="2166">2166</span> |
| <span id="2167">2167</span> |
| <span id="2168">2168</span> |
| <span id="2169">2169</span> |
| <span id="2170">2170</span> |
| <span id="2171">2171</span> |
| <span id="2172">2172</span> |
| <span id="2173">2173</span> |
| <span id="2174">2174</span> |
| <span id="2175">2175</span> |
| <span id="2176">2176</span> |
| <span id="2177">2177</span> |
| <span id="2178">2178</span> |
| <span id="2179">2179</span> |
| <span id="2180">2180</span> |
| <span id="2181">2181</span> |
| <span id="2182">2182</span> |
| <span id="2183">2183</span> |
| <span id="2184">2184</span> |
| <span id="2185">2185</span> |
| <span id="2186">2186</span> |
| <span id="2187">2187</span> |
| <span id="2188">2188</span> |
| <span id="2189">2189</span> |
| <span id="2190">2190</span> |
| <span id="2191">2191</span> |
| <span id="2192">2192</span> |
| <span id="2193">2193</span> |
| <span id="2194">2194</span> |
| <span id="2195">2195</span> |
| <span id="2196">2196</span> |
| <span id="2197">2197</span> |
| <span id="2198">2198</span> |
| <span id="2199">2199</span> |
| <span id="2200">2200</span> |
| <span id="2201">2201</span> |
| <span id="2202">2202</span> |
| <span id="2203">2203</span> |
| <span id="2204">2204</span> |
| <span id="2205">2205</span> |
| <span id="2206">2206</span> |
| <span id="2207">2207</span> |
| <span id="2208">2208</span> |
| <span id="2209">2209</span> |
| <span id="2210">2210</span> |
| <span id="2211">2211</span> |
| <span id="2212">2212</span> |
| <span id="2213">2213</span> |
| <span id="2214">2214</span> |
| <span id="2215">2215</span> |
| <span id="2216">2216</span> |
| <span id="2217">2217</span> |
| <span id="2218">2218</span> |
| <span id="2219">2219</span> |
| <span id="2220">2220</span> |
| <span id="2221">2221</span> |
| <span id="2222">2222</span> |
| <span id="2223">2223</span> |
| <span id="2224">2224</span> |
| <span id="2225">2225</span> |
| <span id="2226">2226</span> |
| <span id="2227">2227</span> |
| <span id="2228">2228</span> |
| <span id="2229">2229</span> |
| <span id="2230">2230</span> |
| <span id="2231">2231</span> |
| <span id="2232">2232</span> |
| <span id="2233">2233</span> |
| <span id="2234">2234</span> |
| <span id="2235">2235</span> |
| <span id="2236">2236</span> |
| <span id="2237">2237</span> |
| <span id="2238">2238</span> |
| <span id="2239">2239</span> |
| <span id="2240">2240</span> |
| <span id="2241">2241</span> |
| <span id="2242">2242</span> |
| <span id="2243">2243</span> |
| <span id="2244">2244</span> |
| <span id="2245">2245</span> |
| <span id="2246">2246</span> |
| <span id="2247">2247</span> |
| <span id="2248">2248</span> |
| <span id="2249">2249</span> |
| <span id="2250">2250</span> |
| <span id="2251">2251</span> |
| <span id="2252">2252</span> |
| <span id="2253">2253</span> |
| <span id="2254">2254</span> |
| <span id="2255">2255</span> |
| <span id="2256">2256</span> |
| <span id="2257">2257</span> |
| <span id="2258">2258</span> |
| <span id="2259">2259</span> |
| <span id="2260">2260</span> |
| <span id="2261">2261</span> |
| <span id="2262">2262</span> |
| <span id="2263">2263</span> |
| <span id="2264">2264</span> |
| <span id="2265">2265</span> |
| <span id="2266">2266</span> |
| <span id="2267">2267</span> |
| <span id="2268">2268</span> |
| <span id="2269">2269</span> |
| <span id="2270">2270</span> |
| <span id="2271">2271</span> |
| <span id="2272">2272</span> |
| <span id="2273">2273</span> |
| <span id="2274">2274</span> |
| <span id="2275">2275</span> |
| <span id="2276">2276</span> |
| <span id="2277">2277</span> |
| <span id="2278">2278</span> |
| <span id="2279">2279</span> |
| <span id="2280">2280</span> |
| <span id="2281">2281</span> |
| <span id="2282">2282</span> |
| <span id="2283">2283</span> |
| <span id="2284">2284</span> |
| <span id="2285">2285</span> |
| <span id="2286">2286</span> |
| <span id="2287">2287</span> |
| <span id="2288">2288</span> |
| <span id="2289">2289</span> |
| <span id="2290">2290</span> |
| <span id="2291">2291</span> |
| <span id="2292">2292</span> |
| <span id="2293">2293</span> |
| <span id="2294">2294</span> |
| <span id="2295">2295</span> |
| <span id="2296">2296</span> |
| <span id="2297">2297</span> |
| <span id="2298">2298</span> |
| <span id="2299">2299</span> |
| <span id="2300">2300</span> |
| <span id="2301">2301</span> |
| <span id="2302">2302</span> |
| <span id="2303">2303</span> |
| <span id="2304">2304</span> |
| <span id="2305">2305</span> |
| <span id="2306">2306</span> |
| <span id="2307">2307</span> |
| <span id="2308">2308</span> |
| <span id="2309">2309</span> |
| <span id="2310">2310</span> |
| <span id="2311">2311</span> |
| <span id="2312">2312</span> |
| <span id="2313">2313</span> |
| <span id="2314">2314</span> |
| <span id="2315">2315</span> |
| <span id="2316">2316</span> |
| <span id="2317">2317</span> |
| <span id="2318">2318</span> |
| <span id="2319">2319</span> |
| <span id="2320">2320</span> |
| <span id="2321">2321</span> |
| <span id="2322">2322</span> |
| <span id="2323">2323</span> |
| <span id="2324">2324</span> |
| <span id="2325">2325</span> |
| <span id="2326">2326</span> |
| <span id="2327">2327</span> |
| <span id="2328">2328</span> |
| <span id="2329">2329</span> |
| <span id="2330">2330</span> |
| <span id="2331">2331</span> |
| <span id="2332">2332</span> |
| <span id="2333">2333</span> |
| <span id="2334">2334</span> |
| <span id="2335">2335</span> |
| <span id="2336">2336</span> |
| <span id="2337">2337</span> |
| <span id="2338">2338</span> |
| <span id="2339">2339</span> |
| <span id="2340">2340</span> |
| <span id="2341">2341</span> |
| <span id="2342">2342</span> |
| <span id="2343">2343</span> |
| <span id="2344">2344</span> |
| <span id="2345">2345</span> |
| <span id="2346">2346</span> |
| <span id="2347">2347</span> |
| <span id="2348">2348</span> |
| <span id="2349">2349</span> |
| <span id="2350">2350</span> |
| <span id="2351">2351</span> |
| <span id="2352">2352</span> |
| <span id="2353">2353</span> |
| <span id="2354">2354</span> |
| <span id="2355">2355</span> |
| <span id="2356">2356</span> |
| <span id="2357">2357</span> |
| <span id="2358">2358</span> |
| <span id="2359">2359</span> |
| <span id="2360">2360</span> |
| <span id="2361">2361</span> |
| <span id="2362">2362</span> |
| <span id="2363">2363</span> |
| <span id="2364">2364</span> |
| <span id="2365">2365</span> |
| <span id="2366">2366</span> |
| <span id="2367">2367</span> |
| <span id="2368">2368</span> |
| <span id="2369">2369</span> |
| <span id="2370">2370</span> |
| <span id="2371">2371</span> |
| <span id="2372">2372</span> |
| <span id="2373">2373</span> |
| <span id="2374">2374</span> |
| <span id="2375">2375</span> |
| <span id="2376">2376</span> |
| <span id="2377">2377</span> |
| <span id="2378">2378</span> |
| <span id="2379">2379</span> |
| <span id="2380">2380</span> |
| <span id="2381">2381</span> |
| <span id="2382">2382</span> |
| <span id="2383">2383</span> |
| <span id="2384">2384</span> |
| <span id="2385">2385</span> |
| <span id="2386">2386</span> |
| <span id="2387">2387</span> |
| <span id="2388">2388</span> |
| <span id="2389">2389</span> |
| <span id="2390">2390</span> |
| <span id="2391">2391</span> |
| <span id="2392">2392</span> |
| <span id="2393">2393</span> |
| <span id="2394">2394</span> |
| <span id="2395">2395</span> |
| <span id="2396">2396</span> |
| <span id="2397">2397</span> |
| <span id="2398">2398</span> |
| <span id="2399">2399</span> |
| <span id="2400">2400</span> |
| <span id="2401">2401</span> |
| <span id="2402">2402</span> |
| <span id="2403">2403</span> |
| <span id="2404">2404</span> |
| <span id="2405">2405</span> |
| <span id="2406">2406</span> |
| <span id="2407">2407</span> |
| <span id="2408">2408</span> |
| <span id="2409">2409</span> |
| <span id="2410">2410</span> |
| <span id="2411">2411</span> |
| <span id="2412">2412</span> |
| <span id="2413">2413</span> |
| <span id="2414">2414</span> |
| <span id="2415">2415</span> |
| <span id="2416">2416</span> |
| <span id="2417">2417</span> |
| <span id="2418">2418</span> |
| <span id="2419">2419</span> |
| <span id="2420">2420</span> |
| <span id="2421">2421</span> |
| <span id="2422">2422</span> |
| <span id="2423">2423</span> |
| <span id="2424">2424</span> |
| <span id="2425">2425</span> |
| <span id="2426">2426</span> |
| <span id="2427">2427</span> |
| <span id="2428">2428</span> |
| <span id="2429">2429</span> |
| <span id="2430">2430</span> |
| <span id="2431">2431</span> |
| <span id="2432">2432</span> |
| <span id="2433">2433</span> |
| <span id="2434">2434</span> |
| <span id="2435">2435</span> |
| <span id="2436">2436</span> |
| <span id="2437">2437</span> |
| <span id="2438">2438</span> |
| <span id="2439">2439</span> |
| <span id="2440">2440</span> |
| <span id="2441">2441</span> |
| <span id="2442">2442</span> |
| <span id="2443">2443</span> |
| <span id="2444">2444</span> |
| <span id="2445">2445</span> |
| <span id="2446">2446</span> |
| <span id="2447">2447</span> |
| <span id="2448">2448</span> |
| <span id="2449">2449</span> |
| <span id="2450">2450</span> |
| <span id="2451">2451</span> |
| <span id="2452">2452</span> |
| <span id="2453">2453</span> |
| <span id="2454">2454</span> |
| <span id="2455">2455</span> |
| <span id="2456">2456</span> |
| <span id="2457">2457</span> |
| <span id="2458">2458</span> |
| <span id="2459">2459</span> |
| <span id="2460">2460</span> |
| <span id="2461">2461</span> |
| <span id="2462">2462</span> |
| </pre><pre class="rust"><code><span class="doccomment">//! Streaming compression functionality. |
| |
| </span><span class="kw">use </span>alloc::boxed::Box; |
| <span class="kw">use </span>core::convert::TryInto; |
| <span class="kw">use </span>core::{cmp, mem}; |
| |
| <span class="kw">use </span><span class="kw">super</span>::<span class="kw">super</span>::<span class="kw-2">*</span>; |
| <span class="kw">use </span><span class="kw">super</span>::deflate_flags::<span class="kw-2">*</span>; |
| <span class="kw">use </span><span class="kw">super</span>::CompressionLevel; |
| <span class="kw">use </span><span class="kw">crate</span>::deflate::buffer::{ |
| update_hash, HashBuffers, LocalBuf, LZ_CODE_BUF_SIZE, LZ_DICT_FULL_SIZE, LZ_HASH_BITS, |
| LZ_HASH_SHIFT, LZ_HASH_SIZE, OUT_BUF_SIZE, |
| }; |
| <span class="kw">use </span><span class="kw">crate</span>::shared::{update_adler32, HUFFMAN_LENGTH_ORDER, MZ_ADLER32_INIT}; |
| <span class="kw">use </span><span class="kw">crate</span>::DataFormat; |
| |
| <span class="comment">// Currently not bubbled up outside this module, so can fill in with more |
| // context eventually if needed. |
| </span><span class="kw">type </span><span class="prelude-ty">Result</span><T, E = Error> = core::result::Result<T, E>; |
| <span class="kw">struct </span>Error {} |
| |
| <span class="kw">const </span>MAX_PROBES_MASK: i32 = <span class="number">0xFFF</span>; |
| |
| <span class="kw">const </span>MAX_SUPPORTED_HUFF_CODESIZE: usize = <span class="number">32</span>; |
| |
| <span class="doccomment">/// Length code for length values. |
| </span><span class="attribute">#[rustfmt::skip] |
| </span><span class="kw">const </span>LEN_SYM: [u16; <span class="number">256</span>] = [ |
| <span class="number">257</span>, <span class="number">258</span>, <span class="number">259</span>, <span class="number">260</span>, <span class="number">261</span>, <span class="number">262</span>, <span class="number">263</span>, <span class="number">264</span>, <span class="number">265</span>, <span class="number">265</span>, <span class="number">266</span>, <span class="number">266</span>, <span class="number">267</span>, <span class="number">267</span>, <span class="number">268</span>, <span class="number">268</span>, |
| <span class="number">269</span>, <span class="number">269</span>, <span class="number">269</span>, <span class="number">269</span>, <span class="number">270</span>, <span class="number">270</span>, <span class="number">270</span>, <span class="number">270</span>, <span class="number">271</span>, <span class="number">271</span>, <span class="number">271</span>, <span class="number">271</span>, <span class="number">272</span>, <span class="number">272</span>, <span class="number">272</span>, <span class="number">272</span>, |
| <span class="number">273</span>, <span class="number">273</span>, <span class="number">273</span>, <span class="number">273</span>, <span class="number">273</span>, <span class="number">273</span>, <span class="number">273</span>, <span class="number">273</span>, <span class="number">274</span>, <span class="number">274</span>, <span class="number">274</span>, <span class="number">274</span>, <span class="number">274</span>, <span class="number">274</span>, <span class="number">274</span>, <span class="number">274</span>, |
| <span class="number">275</span>, <span class="number">275</span>, <span class="number">275</span>, <span class="number">275</span>, <span class="number">275</span>, <span class="number">275</span>, <span class="number">275</span>, <span class="number">275</span>, <span class="number">276</span>, <span class="number">276</span>, <span class="number">276</span>, <span class="number">276</span>, <span class="number">276</span>, <span class="number">276</span>, <span class="number">276</span>, <span class="number">276</span>, |
| <span class="number">277</span>, <span class="number">277</span>, <span class="number">277</span>, <span class="number">277</span>, <span class="number">277</span>, <span class="number">277</span>, <span class="number">277</span>, <span class="number">277</span>, <span class="number">277</span>, <span class="number">277</span>, <span class="number">277</span>, <span class="number">277</span>, <span class="number">277</span>, <span class="number">277</span>, <span class="number">277</span>, <span class="number">277</span>, |
| <span class="number">278</span>, <span class="number">278</span>, <span class="number">278</span>, <span class="number">278</span>, <span class="number">278</span>, <span class="number">278</span>, <span class="number">278</span>, <span class="number">278</span>, <span class="number">278</span>, <span class="number">278</span>, <span class="number">278</span>, <span class="number">278</span>, <span class="number">278</span>, <span class="number">278</span>, <span class="number">278</span>, <span class="number">278</span>, |
| <span class="number">279</span>, <span class="number">279</span>, <span class="number">279</span>, <span class="number">279</span>, <span class="number">279</span>, <span class="number">279</span>, <span class="number">279</span>, <span class="number">279</span>, <span class="number">279</span>, <span class="number">279</span>, <span class="number">279</span>, <span class="number">279</span>, <span class="number">279</span>, <span class="number">279</span>, <span class="number">279</span>, <span class="number">279</span>, |
| <span class="number">280</span>, <span class="number">280</span>, <span class="number">280</span>, <span class="number">280</span>, <span class="number">280</span>, <span class="number">280</span>, <span class="number">280</span>, <span class="number">280</span>, <span class="number">280</span>, <span class="number">280</span>, <span class="number">280</span>, <span class="number">280</span>, <span class="number">280</span>, <span class="number">280</span>, <span class="number">280</span>, <span class="number">280</span>, |
| <span class="number">281</span>, <span class="number">281</span>, <span class="number">281</span>, <span class="number">281</span>, <span class="number">281</span>, <span class="number">281</span>, <span class="number">281</span>, <span class="number">281</span>, <span class="number">281</span>, <span class="number">281</span>, <span class="number">281</span>, <span class="number">281</span>, <span class="number">281</span>, <span class="number">281</span>, <span class="number">281</span>, <span class="number">281</span>, |
| <span class="number">281</span>, <span class="number">281</span>, <span class="number">281</span>, <span class="number">281</span>, <span class="number">281</span>, <span class="number">281</span>, <span class="number">281</span>, <span class="number">281</span>, <span class="number">281</span>, <span class="number">281</span>, <span class="number">281</span>, <span class="number">281</span>, <span class="number">281</span>, <span class="number">281</span>, <span class="number">281</span>, <span class="number">281</span>, |
| <span class="number">282</span>, <span class="number">282</span>, <span class="number">282</span>, <span class="number">282</span>, <span class="number">282</span>, <span class="number">282</span>, <span class="number">282</span>, <span class="number">282</span>, <span class="number">282</span>, <span class="number">282</span>, <span class="number">282</span>, <span class="number">282</span>, <span class="number">282</span>, <span class="number">282</span>, <span class="number">282</span>, <span class="number">282</span>, |
| <span class="number">282</span>, <span class="number">282</span>, <span class="number">282</span>, <span class="number">282</span>, <span class="number">282</span>, <span class="number">282</span>, <span class="number">282</span>, <span class="number">282</span>, <span class="number">282</span>, <span class="number">282</span>, <span class="number">282</span>, <span class="number">282</span>, <span class="number">282</span>, <span class="number">282</span>, <span class="number">282</span>, <span class="number">282</span>, |
| <span class="number">283</span>, <span class="number">283</span>, <span class="number">283</span>, <span class="number">283</span>, <span class="number">283</span>, <span class="number">283</span>, <span class="number">283</span>, <span class="number">283</span>, <span class="number">283</span>, <span class="number">283</span>, <span class="number">283</span>, <span class="number">283</span>, <span class="number">283</span>, <span class="number">283</span>, <span class="number">283</span>, <span class="number">283</span>, |
| <span class="number">283</span>, <span class="number">283</span>, <span class="number">283</span>, <span class="number">283</span>, <span class="number">283</span>, <span class="number">283</span>, <span class="number">283</span>, <span class="number">283</span>, <span class="number">283</span>, <span class="number">283</span>, <span class="number">283</span>, <span class="number">283</span>, <span class="number">283</span>, <span class="number">283</span>, <span class="number">283</span>, <span class="number">283</span>, |
| <span class="number">284</span>, <span class="number">284</span>, <span class="number">284</span>, <span class="number">284</span>, <span class="number">284</span>, <span class="number">284</span>, <span class="number">284</span>, <span class="number">284</span>, <span class="number">284</span>, <span class="number">284</span>, <span class="number">284</span>, <span class="number">284</span>, <span class="number">284</span>, <span class="number">284</span>, <span class="number">284</span>, <span class="number">284</span>, |
| <span class="number">284</span>, <span class="number">284</span>, <span class="number">284</span>, <span class="number">284</span>, <span class="number">284</span>, <span class="number">284</span>, <span class="number">284</span>, <span class="number">284</span>, <span class="number">284</span>, <span class="number">284</span>, <span class="number">284</span>, <span class="number">284</span>, <span class="number">284</span>, <span class="number">284</span>, <span class="number">284</span>, <span class="number">285 |
| </span>]; |
| |
| <span class="doccomment">/// Number of extra bits for length values. |
| </span><span class="attribute">#[rustfmt::skip] |
| </span><span class="kw">const </span>LEN_EXTRA: [u8; <span class="number">256</span>] = [ |
| <span class="number">0</span>, <span class="number">0</span>, <span class="number">0</span>, <span class="number">0</span>, <span class="number">0</span>, <span class="number">0</span>, <span class="number">0</span>, <span class="number">0</span>, <span class="number">1</span>, <span class="number">1</span>, <span class="number">1</span>, <span class="number">1</span>, <span class="number">1</span>, <span class="number">1</span>, <span class="number">1</span>, <span class="number">1</span>, |
| <span class="number">2</span>, <span class="number">2</span>, <span class="number">2</span>, <span class="number">2</span>, <span class="number">2</span>, <span class="number">2</span>, <span class="number">2</span>, <span class="number">2</span>, <span class="number">2</span>, <span class="number">2</span>, <span class="number">2</span>, <span class="number">2</span>, <span class="number">2</span>, <span class="number">2</span>, <span class="number">2</span>, <span class="number">2</span>, |
| <span class="number">3</span>, <span class="number">3</span>, <span class="number">3</span>, <span class="number">3</span>, <span class="number">3</span>, <span class="number">3</span>, <span class="number">3</span>, <span class="number">3</span>, <span class="number">3</span>, <span class="number">3</span>, <span class="number">3</span>, <span class="number">3</span>, <span class="number">3</span>, <span class="number">3</span>, <span class="number">3</span>, <span class="number">3</span>, |
| <span class="number">3</span>, <span class="number">3</span>, <span class="number">3</span>, <span class="number">3</span>, <span class="number">3</span>, <span class="number">3</span>, <span class="number">3</span>, <span class="number">3</span>, <span class="number">3</span>, <span class="number">3</span>, <span class="number">3</span>, <span class="number">3</span>, <span class="number">3</span>, <span class="number">3</span>, <span class="number">3</span>, <span class="number">3</span>, |
| <span class="number">4</span>, <span class="number">4</span>, <span class="number">4</span>, <span class="number">4</span>, <span class="number">4</span>, <span class="number">4</span>, <span class="number">4</span>, <span class="number">4</span>, <span class="number">4</span>, <span class="number">4</span>, <span class="number">4</span>, <span class="number">4</span>, <span class="number">4</span>, <span class="number">4</span>, <span class="number">4</span>, <span class="number">4</span>, |
| <span class="number">4</span>, <span class="number">4</span>, <span class="number">4</span>, <span class="number">4</span>, <span class="number">4</span>, <span class="number">4</span>, <span class="number">4</span>, <span class="number">4</span>, <span class="number">4</span>, <span class="number">4</span>, <span class="number">4</span>, <span class="number">4</span>, <span class="number">4</span>, <span class="number">4</span>, <span class="number">4</span>, <span class="number">4</span>, |
| <span class="number">4</span>, <span class="number">4</span>, <span class="number">4</span>, <span class="number">4</span>, <span class="number">4</span>, <span class="number">4</span>, <span class="number">4</span>, <span class="number">4</span>, <span class="number">4</span>, <span class="number">4</span>, <span class="number">4</span>, <span class="number">4</span>, <span class="number">4</span>, <span class="number">4</span>, <span class="number">4</span>, <span class="number">4</span>, |
| <span class="number">4</span>, <span class="number">4</span>, <span class="number">4</span>, <span class="number">4</span>, <span class="number">4</span>, <span class="number">4</span>, <span class="number">4</span>, <span class="number">4</span>, <span class="number">4</span>, <span class="number">4</span>, <span class="number">4</span>, <span class="number">4</span>, <span class="number">4</span>, <span class="number">4</span>, <span class="number">4</span>, <span class="number">4</span>, |
| <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, |
| <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, |
| <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, |
| <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, |
| <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, |
| <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, |
| <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, |
| <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">0 |
| </span>]; |
| |
| <span class="doccomment">/// Distance codes for distances smaller than 512. |
| </span><span class="attribute">#[rustfmt::skip] |
| </span><span class="kw">const </span>SMALL_DIST_SYM: [u8; <span class="number">512</span>] = [ |
| <span class="number">0</span>, <span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>, <span class="number">4</span>, <span class="number">4</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, |
| <span class="number">8</span>, <span class="number">8</span>, <span class="number">8</span>, <span class="number">8</span>, <span class="number">8</span>, <span class="number">8</span>, <span class="number">8</span>, <span class="number">8</span>, <span class="number">9</span>, <span class="number">9</span>, <span class="number">9</span>, <span class="number">9</span>, <span class="number">9</span>, <span class="number">9</span>, <span class="number">9</span>, <span class="number">9</span>, |
| <span class="number">10</span>, <span class="number">10</span>, <span class="number">10</span>, <span class="number">10</span>, <span class="number">10</span>, <span class="number">10</span>, <span class="number">10</span>, <span class="number">10</span>, <span class="number">10</span>, <span class="number">10</span>, <span class="number">10</span>, <span class="number">10</span>, <span class="number">10</span>, <span class="number">10</span>, <span class="number">10</span>, <span class="number">10</span>, |
| <span class="number">11</span>, <span class="number">11</span>, <span class="number">11</span>, <span class="number">11</span>, <span class="number">11</span>, <span class="number">11</span>, <span class="number">11</span>, <span class="number">11</span>, <span class="number">11</span>, <span class="number">11</span>, <span class="number">11</span>, <span class="number">11</span>, <span class="number">11</span>, <span class="number">11</span>, <span class="number">11</span>, <span class="number">11</span>, |
| <span class="number">12</span>, <span class="number">12</span>, <span class="number">12</span>, <span class="number">12</span>, <span class="number">12</span>, <span class="number">12</span>, <span class="number">12</span>, <span class="number">12</span>, <span class="number">12</span>, <span class="number">12</span>, <span class="number">12</span>, <span class="number">12</span>, <span class="number">12</span>, <span class="number">12</span>, <span class="number">12</span>, <span class="number">12</span>, |
| <span class="number">12</span>, <span class="number">12</span>, <span class="number">12</span>, <span class="number">12</span>, <span class="number">12</span>, <span class="number">12</span>, <span class="number">12</span>, <span class="number">12</span>, <span class="number">12</span>, <span class="number">12</span>, <span class="number">12</span>, <span class="number">12</span>, <span class="number">12</span>, <span class="number">12</span>, <span class="number">12</span>, <span class="number">12</span>, |
| <span class="number">13</span>, <span class="number">13</span>, <span class="number">13</span>, <span class="number">13</span>, <span class="number">13</span>, <span class="number">13</span>, <span class="number">13</span>, <span class="number">13</span>, <span class="number">13</span>, <span class="number">13</span>, <span class="number">13</span>, <span class="number">13</span>, <span class="number">13</span>, <span class="number">13</span>, <span class="number">13</span>, <span class="number">13</span>, |
| <span class="number">13</span>, <span class="number">13</span>, <span class="number">13</span>, <span class="number">13</span>, <span class="number">13</span>, <span class="number">13</span>, <span class="number">13</span>, <span class="number">13</span>, <span class="number">13</span>, <span class="number">13</span>, <span class="number">13</span>, <span class="number">13</span>, <span class="number">13</span>, <span class="number">13</span>, <span class="number">13</span>, <span class="number">13</span>, |
| <span class="number">14</span>, <span class="number">14</span>, <span class="number">14</span>, <span class="number">14</span>, <span class="number">14</span>, <span class="number">14</span>, <span class="number">14</span>, <span class="number">14</span>, <span class="number">14</span>, <span class="number">14</span>, <span class="number">14</span>, <span class="number">14</span>, <span class="number">14</span>, <span class="number">14</span>, <span class="number">14</span>, <span class="number">14</span>, |
| <span class="number">14</span>, <span class="number">14</span>, <span class="number">14</span>, <span class="number">14</span>, <span class="number">14</span>, <span class="number">14</span>, <span class="number">14</span>, <span class="number">14</span>, <span class="number">14</span>, <span class="number">14</span>, <span class="number">14</span>, <span class="number">14</span>, <span class="number">14</span>, <span class="number">14</span>, <span class="number">14</span>, <span class="number">14</span>, |
| <span class="number">14</span>, <span class="number">14</span>, <span class="number">14</span>, <span class="number">14</span>, <span class="number">14</span>, <span class="number">14</span>, <span class="number">14</span>, <span class="number">14</span>, <span class="number">14</span>, <span class="number">14</span>, <span class="number">14</span>, <span class="number">14</span>, <span class="number">14</span>, <span class="number">14</span>, <span class="number">14</span>, <span class="number">14</span>, |
| <span class="number">14</span>, <span class="number">14</span>, <span class="number">14</span>, <span class="number">14</span>, <span class="number">14</span>, <span class="number">14</span>, <span class="number">14</span>, <span class="number">14</span>, <span class="number">14</span>, <span class="number">14</span>, <span class="number">14</span>, <span class="number">14</span>, <span class="number">14</span>, <span class="number">14</span>, <span class="number">14</span>, <span class="number">14</span>, |
| <span class="number">15</span>, <span class="number">15</span>, <span class="number">15</span>, <span class="number">15</span>, <span class="number">15</span>, <span class="number">15</span>, <span class="number">15</span>, <span class="number">15</span>, <span class="number">15</span>, <span class="number">15</span>, <span class="number">15</span>, <span class="number">15</span>, <span class="number">15</span>, <span class="number">15</span>, <span class="number">15</span>, <span class="number">15</span>, |
| <span class="number">15</span>, <span class="number">15</span>, <span class="number">15</span>, <span class="number">15</span>, <span class="number">15</span>, <span class="number">15</span>, <span class="number">15</span>, <span class="number">15</span>, <span class="number">15</span>, <span class="number">15</span>, <span class="number">15</span>, <span class="number">15</span>, <span class="number">15</span>, <span class="number">15</span>, <span class="number">15</span>, <span class="number">15</span>, |
| <span class="number">15</span>, <span class="number">15</span>, <span class="number">15</span>, <span class="number">15</span>, <span class="number">15</span>, <span class="number">15</span>, <span class="number">15</span>, <span class="number">15</span>, <span class="number">15</span>, <span class="number">15</span>, <span class="number">15</span>, <span class="number">15</span>, <span class="number">15</span>, <span class="number">15</span>, <span class="number">15</span>, <span class="number">15</span>, |
| <span class="number">15</span>, <span class="number">15</span>, <span class="number">15</span>, <span class="number">15</span>, <span class="number">15</span>, <span class="number">15</span>, <span class="number">15</span>, <span class="number">15</span>, <span class="number">15</span>, <span class="number">15</span>, <span class="number">15</span>, <span class="number">15</span>, <span class="number">15</span>, <span class="number">15</span>, <span class="number">15</span>, <span class="number">15</span>, |
| <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, |
| <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, |
| <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, |
| <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, |
| <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, |
| <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, |
| <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, |
| <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, <span class="number">16</span>, |
| <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, |
| <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, |
| <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, |
| <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, |
| <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, |
| <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, |
| <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, |
| <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, <span class="number">17</span>, <span class="number">17 |
| </span>]; |
| |
| <span class="doccomment">/// Number of extra bits for distances smaller than 512. |
| </span><span class="attribute">#[rustfmt::skip] |
| </span><span class="kw">const </span>SMALL_DIST_EXTRA: [u8; <span class="number">512</span>] = [ |
| <span class="number">0</span>, <span class="number">0</span>, <span class="number">0</span>, <span class="number">0</span>, <span class="number">1</span>, <span class="number">1</span>, <span class="number">1</span>, <span class="number">1</span>, <span class="number">2</span>, <span class="number">2</span>, <span class="number">2</span>, <span class="number">2</span>, <span class="number">2</span>, <span class="number">2</span>, <span class="number">2</span>, <span class="number">2</span>, <span class="number">3</span>, <span class="number">3</span>, <span class="number">3</span>, <span class="number">3</span>, <span class="number">3</span>, <span class="number">3</span>, <span class="number">3</span>, <span class="number">3</span>, <span class="number">3</span>, <span class="number">3</span>, <span class="number">3</span>, <span class="number">3</span>, <span class="number">3</span>, <span class="number">3</span>, <span class="number">3</span>, <span class="number">3</span>, |
| <span class="number">4</span>, <span class="number">4</span>, <span class="number">4</span>, <span class="number">4</span>, <span class="number">4</span>, <span class="number">4</span>, <span class="number">4</span>, <span class="number">4</span>, <span class="number">4</span>, <span class="number">4</span>, <span class="number">4</span>, <span class="number">4</span>, <span class="number">4</span>, <span class="number">4</span>, <span class="number">4</span>, <span class="number">4</span>, <span class="number">4</span>, <span class="number">4</span>, <span class="number">4</span>, <span class="number">4</span>, <span class="number">4</span>, <span class="number">4</span>, <span class="number">4</span>, <span class="number">4</span>, <span class="number">4</span>, <span class="number">4</span>, <span class="number">4</span>, <span class="number">4</span>, <span class="number">4</span>, <span class="number">4</span>, <span class="number">4</span>, <span class="number">4</span>, |
| <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, |
| <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, <span class="number">5</span>, |
| <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, |
| <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, |
| <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, |
| <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, <span class="number">6</span>, |
| <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, |
| <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, |
| <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, |
| <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, |
| <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, |
| <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, |
| <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, |
| <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7</span>, <span class="number">7 |
| </span>]; |
| |
| <span class="doccomment">/// Base values to calculate distances above 512. |
| </span><span class="attribute">#[rustfmt::skip] |
| </span><span class="kw">const </span>LARGE_DIST_SYM: [u8; <span class="number">128</span>] = [ |
| <span class="number">0</span>, <span class="number">0</span>, <span class="number">18</span>, <span class="number">19</span>, <span class="number">20</span>, <span class="number">20</span>, <span class="number">21</span>, <span class="number">21</span>, <span class="number">22</span>, <span class="number">22</span>, <span class="number">22</span>, <span class="number">22</span>, <span class="number">23</span>, <span class="number">23</span>, <span class="number">23</span>, <span class="number">23</span>, |
| <span class="number">24</span>, <span class="number">24</span>, <span class="number">24</span>, <span class="number">24</span>, <span class="number">24</span>, <span class="number">24</span>, <span class="number">24</span>, <span class="number">24</span>, <span class="number">25</span>, <span class="number">25</span>, <span class="number">25</span>, <span class="number">25</span>, <span class="number">25</span>, <span class="number">25</span>, <span class="number">25</span>, <span class="number">25</span>, |
| <span class="number">26</span>, <span class="number">26</span>, <span class="number">26</span>, <span class="number">26</span>, <span class="number">26</span>, <span class="number">26</span>, <span class="number">26</span>, <span class="number">26</span>, <span class="number">26</span>, <span class="number">26</span>, <span class="number">26</span>, <span class="number">26</span>, <span class="number">26</span>, <span class="number">26</span>, <span class="number">26</span>, <span class="number">26</span>, |
| <span class="number">27</span>, <span class="number">27</span>, <span class="number">27</span>, <span class="number">27</span>, <span class="number">27</span>, <span class="number">27</span>, <span class="number">27</span>, <span class="number">27</span>, <span class="number">27</span>, <span class="number">27</span>, <span class="number">27</span>, <span class="number">27</span>, <span class="number">27</span>, <span class="number">27</span>, <span class="number">27</span>, <span class="number">27</span>, |
| <span class="number">28</span>, <span class="number">28</span>, <span class="number">28</span>, <span class="number">28</span>, <span class="number">28</span>, <span class="number">28</span>, <span class="number">28</span>, <span class="number">28</span>, <span class="number">28</span>, <span class="number">28</span>, <span class="number">28</span>, <span class="number">28</span>, <span class="number">28</span>, <span class="number">28</span>, <span class="number">28</span>, <span class="number">28</span>, |
| <span class="number">28</span>, <span class="number">28</span>, <span class="number">28</span>, <span class="number">28</span>, <span class="number">28</span>, <span class="number">28</span>, <span class="number">28</span>, <span class="number">28</span>, <span class="number">28</span>, <span class="number">28</span>, <span class="number">28</span>, <span class="number">28</span>, <span class="number">28</span>, <span class="number">28</span>, <span class="number">28</span>, <span class="number">28</span>, |
| <span class="number">29</span>, <span class="number">29</span>, <span class="number">29</span>, <span class="number">29</span>, <span class="number">29</span>, <span class="number">29</span>, <span class="number">29</span>, <span class="number">29</span>, <span class="number">29</span>, <span class="number">29</span>, <span class="number">29</span>, <span class="number">29</span>, <span class="number">29</span>, <span class="number">29</span>, <span class="number">29</span>, <span class="number">29</span>, |
| <span class="number">29</span>, <span class="number">29</span>, <span class="number">29</span>, <span class="number">29</span>, <span class="number">29</span>, <span class="number">29</span>, <span class="number">29</span>, <span class="number">29</span>, <span class="number">29</span>, <span class="number">29</span>, <span class="number">29</span>, <span class="number">29</span>, <span class="number">29</span>, <span class="number">29</span>, <span class="number">29</span>, <span class="number">29 |
| </span>]; |
| |
| <span class="doccomment">/// Number of extra bits distances above 512. |
| </span><span class="attribute">#[rustfmt::skip] |
| </span><span class="kw">const </span>LARGE_DIST_EXTRA: [u8; <span class="number">128</span>] = [ |
| <span class="number">0</span>, <span class="number">0</span>, <span class="number">8</span>, <span class="number">8</span>, <span class="number">9</span>, <span class="number">9</span>, <span class="number">9</span>, <span class="number">9</span>, <span class="number">10</span>, <span class="number">10</span>, <span class="number">10</span>, <span class="number">10</span>, <span class="number">10</span>, <span class="number">10</span>, <span class="number">10</span>, <span class="number">10</span>, |
| <span class="number">11</span>, <span class="number">11</span>, <span class="number">11</span>, <span class="number">11</span>, <span class="number">11</span>, <span class="number">11</span>, <span class="number">11</span>, <span class="number">11</span>, <span class="number">11</span>, <span class="number">11</span>, <span class="number">11</span>, <span class="number">11</span>, <span class="number">11</span>, <span class="number">11</span>, <span class="number">11</span>, <span class="number">11</span>, |
| <span class="number">12</span>, <span class="number">12</span>, <span class="number">12</span>, <span class="number">12</span>, <span class="number">12</span>, <span class="number">12</span>, <span class="number">12</span>, <span class="number">12</span>, <span class="number">12</span>, <span class="number">12</span>, <span class="number">12</span>, <span class="number">12</span>, <span class="number">12</span>, <span class="number">12</span>, <span class="number">12</span>, <span class="number">12</span>, |
| <span class="number">12</span>, <span class="number">12</span>, <span class="number">12</span>, <span class="number">12</span>, <span class="number">12</span>, <span class="number">12</span>, <span class="number">12</span>, <span class="number">12</span>, <span class="number">12</span>, <span class="number">12</span>, <span class="number">12</span>, <span class="number">12</span>, <span class="number">12</span>, <span class="number">12</span>, <span class="number">12</span>, <span class="number">12</span>, |
| <span class="number">13</span>, <span class="number">13</span>, <span class="number">13</span>, <span class="number">13</span>, <span class="number">13</span>, <span class="number">13</span>, <span class="number">13</span>, <span class="number">13</span>, <span class="number">13</span>, <span class="number">13</span>, <span class="number">13</span>, <span class="number">13</span>, <span class="number">13</span>, <span class="number">13</span>, <span class="number">13</span>, <span class="number">13</span>, |
| <span class="number">13</span>, <span class="number">13</span>, <span class="number">13</span>, <span class="number">13</span>, <span class="number">13</span>, <span class="number">13</span>, <span class="number">13</span>, <span class="number">13</span>, <span class="number">13</span>, <span class="number">13</span>, <span class="number">13</span>, <span class="number">13</span>, <span class="number">13</span>, <span class="number">13</span>, <span class="number">13</span>, <span class="number">13</span>, |
| <span class="number">13</span>, <span class="number">13</span>, <span class="number">13</span>, <span class="number">13</span>, <span class="number">13</span>, <span class="number">13</span>, <span class="number">13</span>, <span class="number">13</span>, <span class="number">13</span>, <span class="number">13</span>, <span class="number">13</span>, <span class="number">13</span>, <span class="number">13</span>, <span class="number">13</span>, <span class="number">13</span>, <span class="number">13</span>, |
| <span class="number">13</span>, <span class="number">13</span>, <span class="number">13</span>, <span class="number">13</span>, <span class="number">13</span>, <span class="number">13</span>, <span class="number">13</span>, <span class="number">13</span>, <span class="number">13</span>, <span class="number">13</span>, <span class="number">13</span>, <span class="number">13</span>, <span class="number">13</span>, <span class="number">13</span>, <span class="number">13</span>, <span class="number">13 |
| </span>]; |
| |
| <span class="attribute">#[rustfmt::skip] |
| </span><span class="kw">const </span>BITMASKS: [u32; <span class="number">17</span>] = [ |
| <span class="number">0x0000</span>, <span class="number">0x0001</span>, <span class="number">0x0003</span>, <span class="number">0x0007</span>, <span class="number">0x000F</span>, <span class="number">0x001F</span>, <span class="number">0x003F</span>, <span class="number">0x007F</span>, <span class="number">0x00FF</span>, |
| <span class="number">0x01FF</span>, <span class="number">0x03FF</span>, <span class="number">0x07FF</span>, <span class="number">0x0FFF</span>, <span class="number">0x1FFF</span>, <span class="number">0x3FFF</span>, <span class="number">0x7FFF</span>, <span class="number">0xFFFF |
| </span>]; |
| |
| <span class="doccomment">/// The maximum number of checks for matches in the hash table the compressor will make for each |
| /// compression level. |
| </span><span class="kw">const </span>NUM_PROBES: [u32; <span class="number">11</span>] = [<span class="number">0</span>, <span class="number">1</span>, <span class="number">6</span>, <span class="number">32</span>, <span class="number">16</span>, <span class="number">32</span>, <span class="number">128</span>, <span class="number">256</span>, <span class="number">512</span>, <span class="number">768</span>, <span class="number">1500</span>]; |
| |
| <span class="attribute">#[derive(Copy, Clone)] |
| </span><span class="kw">struct </span>SymFreq { |
| key: u16, |
| sym_index: u16, |
| } |
| |
| <span class="kw">pub mod </span>deflate_flags { |
| <span class="doccomment">/// Whether to use a zlib wrapper. |
| </span><span class="kw">pub const </span>TDEFL_WRITE_ZLIB_HEADER: u32 = <span class="number">0x0000_1000</span>; |
| <span class="doccomment">/// Should we compute the adler32 checksum. |
| </span><span class="kw">pub const </span>TDEFL_COMPUTE_ADLER32: u32 = <span class="number">0x0000_2000</span>; |
| <span class="doccomment">/// Should we use greedy parsing (as opposed to lazy parsing where look ahead one or more |
| /// bytes to check for better matches.) |
| </span><span class="kw">pub const </span>TDEFL_GREEDY_PARSING_FLAG: u32 = <span class="number">0x0000_4000</span>; |
| <span class="doccomment">/// Used in miniz to skip zero-initializing hash and dict. We don't do this here, so |
| /// this flag is ignored. |
| </span><span class="kw">pub const </span>TDEFL_NONDETERMINISTIC_PARSING_FLAG: u32 = <span class="number">0x0000_8000</span>; |
| <span class="doccomment">/// Only look for matches with a distance of 0. |
| </span><span class="kw">pub const </span>TDEFL_RLE_MATCHES: u32 = <span class="number">0x0001_0000</span>; |
| <span class="doccomment">/// Only use matches that are at least 6 bytes long. |
| </span><span class="kw">pub const </span>TDEFL_FILTER_MATCHES: u32 = <span class="number">0x0002_0000</span>; |
| <span class="doccomment">/// Force the compressor to only output static blocks. (Blocks using the default huffman codes |
| /// specified in the deflate specification.) |
| </span><span class="kw">pub const </span>TDEFL_FORCE_ALL_STATIC_BLOCKS: u32 = <span class="number">0x0004_0000</span>; |
| <span class="doccomment">/// Force the compressor to only output raw/uncompressed blocks. |
| </span><span class="kw">pub const </span>TDEFL_FORCE_ALL_RAW_BLOCKS: u32 = <span class="number">0x0008_0000</span>; |
| } |
| |
| <span class="doccomment">/// Strategy setting for compression. |
| /// |
| /// The non-default settings offer some special-case compression variants. |
| </span><span class="attribute">#[repr(i32)] |
| #[derive(Debug, Copy, Clone, PartialEq, Eq, Hash)] |
| </span><span class="kw">pub enum </span>CompressionStrategy { |
| <span class="doccomment">/// Don't use any of the special strategies. |
| </span>Default = <span class="number">0</span>, |
| <span class="doccomment">/// Only use matches that are at least 5 bytes long. |
| </span>Filtered = <span class="number">1</span>, |
| <span class="doccomment">/// Don't look for matches, only huffman encode the literals. |
| </span>HuffmanOnly = <span class="number">2</span>, |
| <span class="doccomment">/// Only look for matches with a distance of 1, i.e do run-length encoding only. |
| </span>RLE = <span class="number">3</span>, |
| <span class="doccomment">/// Only use static/fixed blocks. (Blocks using the default huffman codes |
| /// specified in the deflate specification.) |
| </span>Fixed = <span class="number">4</span>, |
| } |
| |
| <span class="doccomment">/// A list of deflate flush types. |
| </span><span class="attribute">#[derive(Debug, Copy, Clone, PartialEq, Eq, Hash)] |
| </span><span class="kw">pub enum </span>TDEFLFlush { |
| <span class="doccomment">/// Normal operation. |
| /// |
| /// Compress as much as there is space for, and then return waiting for more input. |
| </span><span class="prelude-val">None </span>= <span class="number">0</span>, |
| |
| <span class="doccomment">/// Try to flush all the current data and output an empty raw block. |
| </span>Sync = <span class="number">2</span>, |
| |
| <span class="doccomment">/// Same as [`Sync`][Self::Sync], but reset the dictionary so that the following data does not |
| /// depend on previous data. |
| </span>Full = <span class="number">3</span>, |
| |
| <span class="doccomment">/// Try to flush everything and end the deflate stream. |
| /// |
| /// On success this will yield a [`TDEFLStatus::Done`] return status. |
| </span>Finish = <span class="number">4</span>, |
| } |
| |
| <span class="kw">impl </span>From<MZFlush> <span class="kw">for </span>TDEFLFlush { |
| <span class="kw">fn </span>from(flush: MZFlush) -> <span class="self">Self </span>{ |
| <span class="kw">match </span>flush { |
| MZFlush::None => TDEFLFlush::None, |
| MZFlush::Sync => TDEFLFlush::Sync, |
| MZFlush::Full => TDEFLFlush::Full, |
| MZFlush::Finish => TDEFLFlush::Finish, |
| <span class="kw">_ </span>=> TDEFLFlush::None, <span class="comment">// TODO: ??? What to do ??? |
| </span>} |
| } |
| } |
| |
| <span class="kw">impl </span>TDEFLFlush { |
| <span class="kw">pub fn </span>new(flush: i32) -> <span class="prelude-ty">Result</span><<span class="self">Self</span>, MZError> { |
| <span class="kw">match </span>flush { |
| <span class="number">0 </span>=> <span class="prelude-val">Ok</span>(TDEFLFlush::None), |
| <span class="number">2 </span>=> <span class="prelude-val">Ok</span>(TDEFLFlush::Sync), |
| <span class="number">3 </span>=> <span class="prelude-val">Ok</span>(TDEFLFlush::Full), |
| <span class="number">4 </span>=> <span class="prelude-val">Ok</span>(TDEFLFlush::Finish), |
| <span class="kw">_ </span>=> <span class="prelude-val">Err</span>(MZError::Param), |
| } |
| } |
| } |
| |
| <span class="doccomment">/// Return status of compression. |
| </span><span class="attribute">#[repr(i32)] |
| #[derive(Debug, Copy, Clone, PartialEq, Eq, Hash)] |
| </span><span class="kw">pub enum </span>TDEFLStatus { |
| <span class="doccomment">/// Usage error. |
| /// |
| /// This indicates that either the [`CompressorOxide`] experienced a previous error, or the |
| /// stream has already been [`TDEFLFlush::Finish`]'d. |
| </span>BadParam = -<span class="number">2</span>, |
| |
| <span class="doccomment">/// Error putting data into output buffer. |
| /// |
| /// This usually indicates a too-small buffer. |
| </span>PutBufFailed = -<span class="number">1</span>, |
| |
| <span class="doccomment">/// Compression succeeded normally. |
| </span>Okay = <span class="number">0</span>, |
| |
| <span class="doccomment">/// Compression succeeded and the deflate stream was ended. |
| /// |
| /// This is the result of calling compression with [`TDEFLFlush::Finish`]. |
| </span>Done = <span class="number">1</span>, |
| } |
| |
| <span class="kw">const </span>MAX_HUFF_SYMBOLS: usize = <span class="number">288</span>; |
| <span class="doccomment">/// Size of hash chain for fast compression mode. |
| </span><span class="kw">const </span>LEVEL1_HASH_SIZE_MASK: u32 = <span class="number">4095</span>; |
| <span class="doccomment">/// The number of huffman tables used by the compressor. |
| /// Literal/length, Distances and Length of the huffman codes for the other two tables. |
| </span><span class="kw">const </span>MAX_HUFF_TABLES: usize = <span class="number">3</span>; |
| <span class="doccomment">/// Literal/length codes |
| </span><span class="kw">const </span>MAX_HUFF_SYMBOLS_0: usize = <span class="number">288</span>; |
| <span class="doccomment">/// Distance codes. |
| </span><span class="kw">const </span>MAX_HUFF_SYMBOLS_1: usize = <span class="number">32</span>; |
| <span class="doccomment">/// Huffman length values. |
| </span><span class="kw">const </span>MAX_HUFF_SYMBOLS_2: usize = <span class="number">19</span>; |
| <span class="doccomment">/// Size of the chained hash table. |
| </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">const </span>LZ_DICT_SIZE: usize = <span class="number">32_768</span>; |
| <span class="doccomment">/// Mask used when stepping through the hash chains. |
| </span><span class="kw">const </span>LZ_DICT_SIZE_MASK: usize = (LZ_DICT_SIZE <span class="kw">as </span>u32 - <span class="number">1</span>) <span class="kw">as </span>usize; |
| <span class="doccomment">/// The minimum length of a match. |
| </span><span class="kw">const </span>MIN_MATCH_LEN: u8 = <span class="number">3</span>; |
| <span class="doccomment">/// The maximum length of a match. |
| </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">const </span>MAX_MATCH_LEN: usize = <span class="number">258</span>; |
| |
| <span class="kw">const </span>DEFAULT_FLAGS: u32 = NUM_PROBES[<span class="number">4</span>] | TDEFL_WRITE_ZLIB_HEADER; |
| |
| <span class="kw">mod </span>zlib { |
| <span class="kw">const </span>DEFAULT_CM: u8 = <span class="number">8</span>; |
| <span class="kw">const </span>DEFAULT_CINFO: u8 = <span class="number">7 </span><< <span class="number">4</span>; |
| <span class="kw">const </span>_DEFAULT_FDICT: u8 = <span class="number">0</span>; |
| <span class="kw">const </span>DEFAULT_CMF: u8 = DEFAULT_CM | DEFAULT_CINFO; |
| <span class="doccomment">/// The 16-bit value consisting of CMF and FLG must be divisible by this to be valid. |
| </span><span class="kw">const </span>FCHECK_DIVISOR: u8 = <span class="number">31</span>; |
| |
| <span class="doccomment">/// Generate FCHECK from CMF and FLG (without FCKECH )so that they are correct according to the |
| /// specification, i.e (CMF*256 + FCHK) % 31 = 0. |
| /// Returns flg with the FCHKECK bits added (any existing FCHECK bits are ignored). |
| </span><span class="kw">fn </span>add_fcheck(cmf: u8, flg: u8) -> u8 { |
| <span class="kw">let </span>rem = ((usize::from(cmf) * <span class="number">256</span>) + usize::from(flg)) % usize::from(FCHECK_DIVISOR); |
| |
| <span class="comment">// Clear existing FCHECK if any |
| </span><span class="kw">let </span>flg = flg & <span class="number">0b11100000</span>; |
| |
| <span class="comment">// Casting is safe as rem can't overflow since it is a value mod 31 |
| // We can simply add the value to flg as (31 - rem) will never be above 2^5 |
| </span>flg + (FCHECK_DIVISOR - rem <span class="kw">as </span>u8) |
| } |
| |
| <span class="kw">fn </span>zlib_level_from_flags(flags: u32) -> u8 { |
| <span class="kw">use </span><span class="kw">super</span>::NUM_PROBES; |
| |
| <span class="kw">let </span>num_probes = flags & (<span class="kw">super</span>::MAX_PROBES_MASK <span class="kw">as </span>u32); |
| <span class="kw">if </span>flags & <span class="kw">super</span>::TDEFL_GREEDY_PARSING_FLAG != <span class="number">0 </span>{ |
| <span class="kw">if </span>num_probes <= <span class="number">1 </span>{ |
| <span class="number">0 |
| </span>} <span class="kw">else </span>{ |
| <span class="number">1 |
| </span>} |
| } <span class="kw">else if </span>num_probes >= NUM_PROBES[<span class="number">9</span>] { |
| <span class="number">3 |
| </span>} <span class="kw">else </span>{ |
| <span class="number">2 |
| </span>} |
| } |
| |
| <span class="doccomment">/// Get the zlib header for the level using the default window size and no |
| /// dictionary. |
| </span><span class="kw">fn </span>header_from_level(level: u8) -> [u8; <span class="number">2</span>] { |
| <span class="kw">let </span>cmf = DEFAULT_CMF; |
| [cmf, add_fcheck(cmf, (level <span class="kw">as </span>u8) << <span class="number">6</span>)] |
| } |
| |
| <span class="doccomment">/// Create a zlib header from the given compression flags. |
| /// Only level is considered. |
| </span><span class="kw">pub fn </span>header_from_flags(flags: u32) -> [u8; <span class="number">2</span>] { |
| <span class="kw">let </span>level = zlib_level_from_flags(flags); |
| header_from_level(level) |
| } |
| |
| <span class="attribute">#[cfg(test)] |
| </span><span class="kw">mod </span>test { |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>zlib() { |
| <span class="kw">use </span><span class="kw">super</span>::<span class="kw">super</span>::<span class="kw-2">*</span>; |
| <span class="kw">use super</span>::<span class="kw-2">*</span>; |
| |
| <span class="kw">let </span>test_level = |level, expected| { |
| <span class="kw">let </span>flags = create_comp_flags_from_zip_params( |
| level, |
| MZ_DEFAULT_WINDOW_BITS, |
| CompressionStrategy::Default <span class="kw">as </span>i32, |
| ); |
| <span class="macro">assert_eq!</span>(zlib_level_from_flags(flags), expected); |
| }; |
| |
| <span class="macro">assert_eq!</span>(zlib_level_from_flags(DEFAULT_FLAGS), <span class="number">2</span>); |
| test_level(<span class="number">0</span>, <span class="number">0</span>); |
| test_level(<span class="number">1</span>, <span class="number">0</span>); |
| test_level(<span class="number">2</span>, <span class="number">1</span>); |
| test_level(<span class="number">3</span>, <span class="number">1</span>); |
| <span class="kw">for </span>i <span class="kw">in </span><span class="number">4</span>..=<span class="number">8 </span>{ |
| test_level(i, <span class="number">2</span>) |
| } |
| test_level(<span class="number">9</span>, <span class="number">3</span>); |
| test_level(<span class="number">10</span>, <span class="number">3</span>); |
| } |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>test_header() { |
| <span class="kw">let </span>header = <span class="kw">super</span>::header_from_level(<span class="number">3</span>); |
| <span class="macro">assert_eq!</span>( |
| ((usize::from(header[<span class="number">0</span>]) * <span class="number">256</span>) + usize::from(header[<span class="number">1</span>])) % <span class="number">31</span>, |
| <span class="number">0 |
| </span>); |
| } |
| } |
| } |
| |
| <span class="kw">fn </span>memset<T: Copy>(slice: <span class="kw-2">&mut </span>[T], val: T) { |
| <span class="kw">for </span>x <span class="kw">in </span>slice { |
| <span class="kw-2">*</span>x = val |
| } |
| } |
| |
| <span class="attribute">#[cfg(test)] |
| #[inline] |
| </span><span class="kw">fn </span>write_u16_le(val: u16, slice: <span class="kw-2">&mut </span>[u8], pos: usize) { |
| slice[pos] = val <span class="kw">as </span>u8; |
| slice[pos + <span class="number">1</span>] = (val >> <span class="number">8</span>) <span class="kw">as </span>u8; |
| } |
| |
| <span class="comment">// Read the two bytes starting at pos and interpret them as an u16. |
| </span><span class="attribute">#[inline] |
| </span><span class="kw">const fn </span>read_u16_le(slice: <span class="kw-2">&</span>[u8], pos: usize) -> u16 { |
| <span class="comment">// The compiler is smart enough to optimize this into an unaligned load. |
| </span>slice[pos] <span class="kw">as </span>u16 | ((slice[pos + <span class="number">1</span>] <span class="kw">as </span>u16) << <span class="number">8</span>) |
| } |
| |
| <span class="doccomment">/// Main compression struct. |
| </span><span class="kw">pub struct </span>CompressorOxide { |
| lz: LZOxide, |
| params: ParamsOxide, |
| huff: Box<HuffmanOxide>, |
| dict: DictOxide, |
| } |
| |
| <span class="kw">impl </span>CompressorOxide { |
| <span class="doccomment">/// Create a new `CompressorOxide` with the given flags. |
| /// |
| /// # Notes |
| /// This function may be changed to take different parameters in the future. |
| </span><span class="kw">pub fn </span>new(flags: u32) -> <span class="self">Self </span>{ |
| CompressorOxide { |
| lz: LZOxide::new(), |
| params: ParamsOxide::new(flags), |
| <span class="doccomment">/// Put HuffmanOxide on the heap with default trick to avoid |
| /// excessive stack copies. |
| </span>huff: Box::default(), |
| dict: DictOxide::new(flags), |
| } |
| } |
| |
| <span class="doccomment">/// Get the adler32 checksum of the currently encoded data. |
| </span><span class="kw">pub const fn </span>adler32(<span class="kw-2">&</span><span class="self">self</span>) -> u32 { |
| <span class="self">self</span>.params.adler32 |
| } |
| |
| <span class="doccomment">/// Get the return status of the previous [`compress`](fn.compress.html) |
| /// call with this compressor. |
| </span><span class="kw">pub const fn </span>prev_return_status(<span class="kw-2">&</span><span class="self">self</span>) -> TDEFLStatus { |
| <span class="self">self</span>.params.prev_return_status |
| } |
| |
| <span class="doccomment">/// Get the raw compressor flags. |
| /// |
| /// # Notes |
| /// This function may be deprecated or changed in the future to use more rust-style flags. |
| </span><span class="kw">pub const fn </span>flags(<span class="kw-2">&</span><span class="self">self</span>) -> i32 { |
| <span class="self">self</span>.params.flags <span class="kw">as </span>i32 |
| } |
| |
| <span class="doccomment">/// Returns whether the compressor is wrapping the data in a zlib format or not. |
| </span><span class="kw">pub fn </span>data_format(<span class="kw-2">&</span><span class="self">self</span>) -> DataFormat { |
| <span class="kw">if </span>(<span class="self">self</span>.params.flags & TDEFL_WRITE_ZLIB_HEADER) != <span class="number">0 </span>{ |
| DataFormat::Zlib |
| } <span class="kw">else </span>{ |
| DataFormat::Raw |
| } |
| } |
| |
| <span class="doccomment">/// Reset the state of the compressor, keeping the same parameters. |
| /// |
| /// This avoids re-allocating data. |
| </span><span class="kw">pub fn </span>reset(<span class="kw-2">&mut </span><span class="self">self</span>) { |
| <span class="comment">// LZ buf and huffman has no settings or dynamic memory |
| // that needs to be saved, so we simply replace them. |
| </span><span class="self">self</span>.lz = LZOxide::new(); |
| <span class="self">self</span>.params.reset(); |
| <span class="kw-2">*</span><span class="self">self</span>.huff = HuffmanOxide::default(); |
| <span class="self">self</span>.dict.reset(); |
| } |
| |
| <span class="doccomment">/// Set the compression level of the compressor. |
| /// |
| /// Using this to change level after compression has started is supported. |
| /// # Notes |
| /// The compression strategy will be reset to the default one when this is called. |
| </span><span class="kw">pub fn </span>set_compression_level(<span class="kw-2">&mut </span><span class="self">self</span>, level: CompressionLevel) { |
| <span class="kw">let </span>format = <span class="self">self</span>.data_format(); |
| <span class="self">self</span>.set_format_and_level(format, level <span class="kw">as </span>u8); |
| } |
| |
| <span class="doccomment">/// Set the compression level of the compressor using an integer value. |
| /// |
| /// Using this to change level after compression has started is supported. |
| /// # Notes |
| /// The compression strategy will be reset to the default one when this is called. |
| </span><span class="kw">pub fn </span>set_compression_level_raw(<span class="kw-2">&mut </span><span class="self">self</span>, level: u8) { |
| <span class="kw">let </span>format = <span class="self">self</span>.data_format(); |
| <span class="self">self</span>.set_format_and_level(format, level); |
| } |
| |
| <span class="doccomment">/// Update the compression settings of the compressor. |
| /// |
| /// Changing the `DataFormat` after compression has started will result in |
| /// a corrupted stream. |
| /// |
| /// # Notes |
| /// This function mainly intended for setting the initial settings after e.g creating with |
| /// `default` or after calling `CompressorOxide::reset()`, and behaviour may be changed |
| /// to disallow calling it after starting compression in the future. |
| </span><span class="kw">pub fn </span>set_format_and_level(<span class="kw-2">&mut </span><span class="self">self</span>, data_format: DataFormat, level: u8) { |
| <span class="kw">let </span>flags = create_comp_flags_from_zip_params( |
| level.into(), |
| data_format.to_window_bits(), |
| CompressionStrategy::Default <span class="kw">as </span>i32, |
| ); |
| <span class="self">self</span>.params.update_flags(flags); |
| <span class="self">self</span>.dict.update_flags(flags); |
| } |
| } |
| |
| <span class="kw">impl </span>Default <span class="kw">for </span>CompressorOxide { |
| <span class="doccomment">/// Initialize the compressor with a level of 4, zlib wrapper and |
| /// the default strategy. |
| </span><span class="kw">fn </span>default() -> <span class="self">Self </span>{ |
| CompressorOxide { |
| lz: LZOxide::new(), |
| params: ParamsOxide::new(DEFAULT_FLAGS), |
| <span class="doccomment">/// Put HuffmanOxide on the heap with default trick to avoid |
| /// excessive stack copies. |
| </span>huff: Box::default(), |
| dict: DictOxide::new(DEFAULT_FLAGS), |
| } |
| } |
| } |
| |
| <span class="doccomment">/// Callback function and user used in `compress_to_output`. |
| </span><span class="kw">pub struct </span>CallbackFunc<<span class="lifetime">'a</span>> { |
| <span class="kw">pub </span>put_buf_func: <span class="kw-2">&</span><span class="lifetime">'a </span><span class="kw-2">mut </span><span class="kw">dyn </span>FnMut(<span class="kw-2">&</span>[u8]) -> bool, |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'a</span>> CallbackFunc<<span class="lifetime">'a</span>> { |
| <span class="kw">fn </span>flush_output( |
| <span class="kw-2">&mut </span><span class="self">self</span>, |
| saved_output: SavedOutputBufferOxide, |
| params: <span class="kw-2">&mut </span>ParamsOxide, |
| ) -> i32 { |
| <span class="comment">// TODO: As this could be unsafe since |
| // we can't verify the function pointer |
| // this whole function should maybe be unsafe as well. |
| </span><span class="kw">let </span>call_success = (<span class="self">self</span>.put_buf_func)(<span class="kw-2">&</span>params.local_buf.b[<span class="number">0</span>..saved_output.pos <span class="kw">as </span>usize]); |
| |
| <span class="kw">if </span>!call_success { |
| params.prev_return_status = TDEFLStatus::PutBufFailed; |
| <span class="kw">return </span>params.prev_return_status <span class="kw">as </span>i32; |
| } |
| |
| params.flush_remaining <span class="kw">as </span>i32 |
| } |
| } |
| |
| <span class="kw">struct </span>CallbackBuf<<span class="lifetime">'a</span>> { |
| <span class="kw">pub </span>out_buf: <span class="kw-2">&</span><span class="lifetime">'a </span><span class="kw-2">mut </span>[u8], |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'a</span>> CallbackBuf<<span class="lifetime">'a</span>> { |
| <span class="kw">fn </span>flush_output( |
| <span class="kw-2">&mut </span><span class="self">self</span>, |
| saved_output: SavedOutputBufferOxide, |
| params: <span class="kw-2">&mut </span>ParamsOxide, |
| ) -> i32 { |
| <span class="kw">if </span>saved_output.local { |
| <span class="kw">let </span>n = cmp::min( |
| saved_output.pos <span class="kw">as </span>usize, |
| <span class="self">self</span>.out_buf.len() - params.out_buf_ofs, |
| ); |
| (<span class="kw-2">&mut </span><span class="self">self</span>.out_buf[params.out_buf_ofs..params.out_buf_ofs + n]) |
| .copy_from_slice(<span class="kw-2">&</span>params.local_buf.b[..n]); |
| |
| params.out_buf_ofs += n; |
| <span class="kw">if </span>saved_output.pos != n { |
| params.flush_ofs = n <span class="kw">as </span>u32; |
| params.flush_remaining = (saved_output.pos - n) <span class="kw">as </span>u32; |
| } |
| } <span class="kw">else </span>{ |
| params.out_buf_ofs += saved_output.pos; |
| } |
| |
| params.flush_remaining <span class="kw">as </span>i32 |
| } |
| } |
| |
| <span class="kw">enum </span>CallbackOut<<span class="lifetime">'a</span>> { |
| Func(CallbackFunc<<span class="lifetime">'a</span>>), |
| Buf(CallbackBuf<<span class="lifetime">'a</span>>), |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'a</span>> CallbackOut<<span class="lifetime">'a</span>> { |
| <span class="kw">fn </span>new_output_buffer<<span class="lifetime">'b</span>>( |
| <span class="kw-2">&</span><span class="lifetime">'b </span><span class="kw-2">mut </span><span class="self">self</span>, |
| local_buf: <span class="kw-2">&</span><span class="lifetime">'b </span><span class="kw-2">mut </span>[u8], |
| out_buf_ofs: usize, |
| ) -> OutputBufferOxide<<span class="lifetime">'b</span>> { |
| <span class="kw">let </span>is_local; |
| <span class="kw">let </span>buf_len = OUT_BUF_SIZE - <span class="number">16</span>; |
| <span class="kw">let </span>chosen_buffer = <span class="kw">match </span><span class="kw-2">*</span><span class="self">self </span>{ |
| CallbackOut::Buf(<span class="kw-2">ref mut </span>cb) <span class="kw">if </span>cb.out_buf.len() - out_buf_ofs >= OUT_BUF_SIZE => { |
| is_local = <span class="bool-val">false</span>; |
| <span class="kw-2">&mut </span>cb.out_buf[out_buf_ofs..out_buf_ofs + buf_len] |
| } |
| <span class="kw">_ </span>=> { |
| is_local = <span class="bool-val">true</span>; |
| <span class="kw-2">&mut </span>local_buf[..buf_len] |
| } |
| }; |
| |
| OutputBufferOxide { |
| inner: chosen_buffer, |
| inner_pos: <span class="number">0</span>, |
| local: is_local, |
| bit_buffer: <span class="number">0</span>, |
| bits_in: <span class="number">0</span>, |
| } |
| } |
| } |
| |
| <span class="kw">struct </span>CallbackOxide<<span class="lifetime">'a</span>> { |
| in_buf: <span class="prelude-ty">Option</span><<span class="kw-2">&</span><span class="lifetime">'a </span>[u8]>, |
| in_buf_size: <span class="prelude-ty">Option</span><<span class="kw-2">&</span><span class="lifetime">'a </span><span class="kw-2">mut </span>usize>, |
| out_buf_size: <span class="prelude-ty">Option</span><<span class="kw-2">&</span><span class="lifetime">'a </span><span class="kw-2">mut </span>usize>, |
| out: CallbackOut<<span class="lifetime">'a</span>>, |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'a</span>> CallbackOxide<<span class="lifetime">'a</span>> { |
| <span class="kw">fn </span>new_callback_buf(in_buf: <span class="kw-2">&</span><span class="lifetime">'a </span>[u8], out_buf: <span class="kw-2">&</span><span class="lifetime">'a </span><span class="kw-2">mut </span>[u8]) -> <span class="self">Self </span>{ |
| CallbackOxide { |
| in_buf: <span class="prelude-val">Some</span>(in_buf), |
| in_buf_size: <span class="prelude-val">None</span>, |
| out_buf_size: <span class="prelude-val">None</span>, |
| out: CallbackOut::Buf(CallbackBuf { out_buf }), |
| } |
| } |
| |
| <span class="kw">fn </span>new_callback_func(in_buf: <span class="kw-2">&</span><span class="lifetime">'a </span>[u8], callback_func: CallbackFunc<<span class="lifetime">'a</span>>) -> <span class="self">Self </span>{ |
| CallbackOxide { |
| in_buf: <span class="prelude-val">Some</span>(in_buf), |
| in_buf_size: <span class="prelude-val">None</span>, |
| out_buf_size: <span class="prelude-val">None</span>, |
| out: CallbackOut::Func(callback_func), |
| } |
| } |
| |
| <span class="kw">fn </span>update_size(<span class="kw-2">&mut </span><span class="self">self</span>, in_size: <span class="prelude-ty">Option</span><usize>, out_size: <span class="prelude-ty">Option</span><usize>) { |
| <span class="kw">if let </span>(<span class="prelude-val">Some</span>(in_size), <span class="prelude-val">Some</span>(size)) = (in_size, <span class="self">self</span>.in_buf_size.as_mut()) { |
| <span class="kw-2">**</span>size = in_size; |
| } |
| |
| <span class="kw">if let </span>(<span class="prelude-val">Some</span>(out_size), <span class="prelude-val">Some</span>(size)) = (out_size, <span class="self">self</span>.out_buf_size.as_mut()) { |
| <span class="kw-2">**</span>size = out_size |
| } |
| } |
| |
| <span class="kw">fn </span>flush_output( |
| <span class="kw-2">&mut </span><span class="self">self</span>, |
| saved_output: SavedOutputBufferOxide, |
| params: <span class="kw-2">&mut </span>ParamsOxide, |
| ) -> i32 { |
| <span class="kw">if </span>saved_output.pos == <span class="number">0 </span>{ |
| <span class="kw">return </span>params.flush_remaining <span class="kw">as </span>i32; |
| } |
| |
| <span class="self">self</span>.update_size(<span class="prelude-val">Some</span>(params.src_pos), <span class="prelude-val">None</span>); |
| <span class="kw">match </span><span class="self">self</span>.out { |
| CallbackOut::Func(<span class="kw-2">ref mut </span>cf) => cf.flush_output(saved_output, params), |
| CallbackOut::Buf(<span class="kw-2">ref mut </span>cb) => cb.flush_output(saved_output, params), |
| } |
| } |
| } |
| |
| <span class="kw">struct </span>OutputBufferOxide<<span class="lifetime">'a</span>> { |
| <span class="kw">pub </span>inner: <span class="kw-2">&</span><span class="lifetime">'a </span><span class="kw-2">mut </span>[u8], |
| <span class="kw">pub </span>inner_pos: usize, |
| <span class="kw">pub </span>local: bool, |
| |
| <span class="kw">pub </span>bit_buffer: u32, |
| <span class="kw">pub </span>bits_in: u32, |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'a</span>> OutputBufferOxide<<span class="lifetime">'a</span>> { |
| <span class="kw">fn </span>put_bits(<span class="kw-2">&mut </span><span class="self">self</span>, bits: u32, len: u32) { |
| <span class="macro">assert!</span>(bits <= ((<span class="number">1u32 </span><< len) - <span class="number">1u32</span>)); |
| <span class="self">self</span>.bit_buffer |= bits << <span class="self">self</span>.bits_in; |
| <span class="self">self</span>.bits_in += len; |
| <span class="kw">while </span><span class="self">self</span>.bits_in >= <span class="number">8 </span>{ |
| <span class="self">self</span>.inner[<span class="self">self</span>.inner_pos] = <span class="self">self</span>.bit_buffer <span class="kw">as </span>u8; |
| <span class="self">self</span>.inner_pos += <span class="number">1</span>; |
| <span class="self">self</span>.bit_buffer >>= <span class="number">8</span>; |
| <span class="self">self</span>.bits_in -= <span class="number">8</span>; |
| } |
| } |
| |
| <span class="kw">const fn </span>save(<span class="kw-2">&</span><span class="self">self</span>) -> SavedOutputBufferOxide { |
| SavedOutputBufferOxide { |
| pos: <span class="self">self</span>.inner_pos, |
| bit_buffer: <span class="self">self</span>.bit_buffer, |
| bits_in: <span class="self">self</span>.bits_in, |
| local: <span class="self">self</span>.local, |
| } |
| } |
| |
| <span class="kw">fn </span>load(<span class="kw-2">&mut </span><span class="self">self</span>, saved: SavedOutputBufferOxide) { |
| <span class="self">self</span>.inner_pos = saved.pos; |
| <span class="self">self</span>.bit_buffer = saved.bit_buffer; |
| <span class="self">self</span>.bits_in = saved.bits_in; |
| <span class="self">self</span>.local = saved.local; |
| } |
| |
| <span class="kw">fn </span>pad_to_bytes(<span class="kw-2">&mut </span><span class="self">self</span>) { |
| <span class="kw">if </span><span class="self">self</span>.bits_in != <span class="number">0 </span>{ |
| <span class="kw">let </span>len = <span class="number">8 </span>- <span class="self">self</span>.bits_in; |
| <span class="self">self</span>.put_bits(<span class="number">0</span>, len); |
| } |
| } |
| } |
| |
| <span class="kw">struct </span>SavedOutputBufferOxide { |
| <span class="kw">pub </span>pos: usize, |
| <span class="kw">pub </span>bit_buffer: u32, |
| <span class="kw">pub </span>bits_in: u32, |
| <span class="kw">pub </span>local: bool, |
| } |
| |
| <span class="kw">struct </span>BitBuffer { |
| <span class="kw">pub </span>bit_buffer: u64, |
| <span class="kw">pub </span>bits_in: u32, |
| } |
| |
| <span class="kw">impl </span>BitBuffer { |
| <span class="kw">fn </span>put_fast(<span class="kw-2">&mut </span><span class="self">self</span>, bits: u64, len: u32) { |
| <span class="self">self</span>.bit_buffer |= bits << <span class="self">self</span>.bits_in; |
| <span class="self">self</span>.bits_in += len; |
| } |
| |
| <span class="kw">fn </span>flush(<span class="kw-2">&mut </span><span class="self">self</span>, output: <span class="kw-2">&mut </span>OutputBufferOxide) -> <span class="prelude-ty">Result</span><()> { |
| <span class="kw">let </span>pos = output.inner_pos; |
| { |
| <span class="comment">// isolation to please borrow checker |
| </span><span class="kw">let </span>inner = <span class="kw-2">&mut </span>output.inner[pos..pos + <span class="number">8</span>]; |
| <span class="kw">let </span>bytes = u64::to_le_bytes(<span class="self">self</span>.bit_buffer); |
| inner.copy_from_slice(<span class="kw-2">&</span>bytes); |
| } |
| <span class="kw">match </span>output.inner_pos.checked_add((<span class="self">self</span>.bits_in >> <span class="number">3</span>) <span class="kw">as </span>usize) { |
| <span class="prelude-val">Some</span>(n) <span class="kw">if </span>n <= output.inner.len() => output.inner_pos = n, |
| <span class="kw">_ </span>=> <span class="kw">return </span><span class="prelude-val">Err</span>(Error {}), |
| } |
| <span class="self">self</span>.bit_buffer >>= <span class="self">self</span>.bits_in & !<span class="number">7</span>; |
| <span class="self">self</span>.bits_in &= <span class="number">7</span>; |
| <span class="prelude-val">Ok</span>(()) |
| } |
| } |
| |
| <span class="doccomment">/// A struct containing data about huffman codes and symbol frequencies. |
| /// |
| /// NOTE: Only the literal/lengths have enough symbols to actually use |
| /// the full array. It's unclear why it's defined like this in miniz, |
| /// it could be for cache/alignment reasons. |
| </span><span class="kw">struct </span>HuffmanOxide { |
| <span class="doccomment">/// Number of occurrences of each symbol. |
| </span><span class="kw">pub </span>count: [[u16; MAX_HUFF_SYMBOLS]; MAX_HUFF_TABLES], |
| <span class="doccomment">/// The bits of the huffman code assigned to the symbol |
| </span><span class="kw">pub </span>codes: [[u16; MAX_HUFF_SYMBOLS]; MAX_HUFF_TABLES], |
| <span class="doccomment">/// The length of the huffman code assigned to the symbol. |
| </span><span class="kw">pub </span>code_sizes: [[u8; MAX_HUFF_SYMBOLS]; MAX_HUFF_TABLES], |
| } |
| |
| <span class="doccomment">/// Tables used for literal/lengths in `HuffmanOxide`. |
| </span><span class="kw">const </span>LITLEN_TABLE: usize = <span class="number">0</span>; |
| <span class="doccomment">/// Tables for distances. |
| </span><span class="kw">const </span>DIST_TABLE: usize = <span class="number">1</span>; |
| <span class="doccomment">/// Tables for the run-length encoded huffman lengths for literals/lengths/distances. |
| </span><span class="kw">const </span>HUFF_CODES_TABLE: usize = <span class="number">2</span>; |
| |
| <span class="doccomment">/// Status of RLE encoding of huffman code lengths. |
| </span><span class="kw">struct </span>Rle { |
| <span class="kw">pub </span>z_count: u32, |
| <span class="kw">pub </span>repeat_count: u32, |
| <span class="kw">pub </span>prev_code_size: u8, |
| } |
| |
| <span class="kw">impl </span>Rle { |
| <span class="kw">fn </span>prev_code_size( |
| <span class="kw-2">&mut </span><span class="self">self</span>, |
| packed_code_sizes: <span class="kw-2">&mut </span>[u8], |
| packed_pos: <span class="kw-2">&mut </span>usize, |
| h: <span class="kw-2">&mut </span>HuffmanOxide, |
| ) -> <span class="prelude-ty">Result</span><()> { |
| <span class="kw">let </span><span class="kw-2">mut </span>write = |buf| write(buf, packed_code_sizes, packed_pos); |
| <span class="kw">let </span>counts = <span class="kw-2">&mut </span>h.count[HUFF_CODES_TABLE]; |
| <span class="kw">if </span><span class="self">self</span>.repeat_count != <span class="number">0 </span>{ |
| <span class="kw">if </span><span class="self">self</span>.repeat_count < <span class="number">3 </span>{ |
| counts[<span class="self">self</span>.prev_code_size <span class="kw">as </span>usize] = |
| counts[<span class="self">self</span>.prev_code_size <span class="kw">as </span>usize].wrapping_add(<span class="self">self</span>.repeat_count <span class="kw">as </span>u16); |
| <span class="kw">let </span>code = <span class="self">self</span>.prev_code_size; |
| write(<span class="kw-2">&</span>[code, code, code][..<span class="self">self</span>.repeat_count <span class="kw">as </span>usize])<span class="question-mark">?</span>; |
| } <span class="kw">else </span>{ |
| counts[<span class="number">16</span>] = counts[<span class="number">16</span>].wrapping_add(<span class="number">1</span>); |
| write(<span class="kw-2">&</span>[<span class="number">16</span>, (<span class="self">self</span>.repeat_count - <span class="number">3</span>) <span class="kw">as </span>u8][..])<span class="question-mark">?</span>; |
| } |
| <span class="self">self</span>.repeat_count = <span class="number">0</span>; |
| } |
| |
| <span class="prelude-val">Ok</span>(()) |
| } |
| |
| <span class="kw">fn </span>zero_code_size( |
| <span class="kw-2">&mut </span><span class="self">self</span>, |
| packed_code_sizes: <span class="kw-2">&mut </span>[u8], |
| packed_pos: <span class="kw-2">&mut </span>usize, |
| h: <span class="kw-2">&mut </span>HuffmanOxide, |
| ) -> <span class="prelude-ty">Result</span><()> { |
| <span class="kw">let </span><span class="kw-2">mut </span>write = |buf| write(buf, packed_code_sizes, packed_pos); |
| <span class="kw">let </span>counts = <span class="kw-2">&mut </span>h.count[HUFF_CODES_TABLE]; |
| <span class="kw">if </span><span class="self">self</span>.z_count != <span class="number">0 </span>{ |
| <span class="kw">if </span><span class="self">self</span>.z_count < <span class="number">3 </span>{ |
| counts[<span class="number">0</span>] = counts[<span class="number">0</span>].wrapping_add(<span class="self">self</span>.z_count <span class="kw">as </span>u16); |
| write(<span class="kw-2">&</span>[<span class="number">0</span>, <span class="number">0</span>, <span class="number">0</span>][..<span class="self">self</span>.z_count <span class="kw">as </span>usize])<span class="question-mark">?</span>; |
| } <span class="kw">else if </span><span class="self">self</span>.z_count <= <span class="number">10 </span>{ |
| counts[<span class="number">17</span>] = counts[<span class="number">17</span>].wrapping_add(<span class="number">1</span>); |
| write(<span class="kw-2">&</span>[<span class="number">17</span>, (<span class="self">self</span>.z_count - <span class="number">3</span>) <span class="kw">as </span>u8][..])<span class="question-mark">?</span>; |
| } <span class="kw">else </span>{ |
| counts[<span class="number">18</span>] = counts[<span class="number">18</span>].wrapping_add(<span class="number">1</span>); |
| write(<span class="kw-2">&</span>[<span class="number">18</span>, (<span class="self">self</span>.z_count - <span class="number">11</span>) <span class="kw">as </span>u8][..])<span class="question-mark">?</span>; |
| } |
| <span class="self">self</span>.z_count = <span class="number">0</span>; |
| } |
| |
| <span class="prelude-val">Ok</span>(()) |
| } |
| } |
| |
| <span class="kw">fn </span>write(src: <span class="kw-2">&</span>[u8], dst: <span class="kw-2">&mut </span>[u8], dst_pos: <span class="kw-2">&mut </span>usize) -> <span class="prelude-ty">Result</span><()> { |
| <span class="kw">match </span>dst.get_mut(<span class="kw-2">*</span>dst_pos..<span class="kw-2">*</span>dst_pos + src.len()) { |
| <span class="prelude-val">Some</span>(s) => s.copy_from_slice(src), |
| <span class="prelude-val">None </span>=> <span class="kw">return </span><span class="prelude-val">Err</span>(Error {}), |
| } |
| <span class="kw-2">*</span>dst_pos += src.len(); |
| <span class="prelude-val">Ok</span>(()) |
| } |
| |
| <span class="kw">impl </span>Default <span class="kw">for </span>HuffmanOxide { |
| <span class="kw">fn </span>default() -> <span class="self">Self </span>{ |
| HuffmanOxide { |
| count: [[<span class="number">0</span>; MAX_HUFF_SYMBOLS]; MAX_HUFF_TABLES], |
| codes: [[<span class="number">0</span>; MAX_HUFF_SYMBOLS]; MAX_HUFF_TABLES], |
| code_sizes: [[<span class="number">0</span>; MAX_HUFF_SYMBOLS]; MAX_HUFF_TABLES], |
| } |
| } |
| } |
| |
| <span class="kw">impl </span>HuffmanOxide { |
| <span class="kw">fn </span>radix_sort_symbols<<span class="lifetime">'a</span>>( |
| symbols0: <span class="kw-2">&</span><span class="lifetime">'a </span><span class="kw-2">mut </span>[SymFreq], |
| symbols1: <span class="kw-2">&</span><span class="lifetime">'a </span><span class="kw-2">mut </span>[SymFreq], |
| ) -> <span class="kw-2">&</span><span class="lifetime">'a </span><span class="kw-2">mut </span>[SymFreq] { |
| <span class="kw">let </span><span class="kw-2">mut </span>hist = [[<span class="number">0</span>; <span class="number">256</span>]; <span class="number">2</span>]; |
| |
| <span class="kw">for </span>freq <span class="kw">in </span>symbols0.iter() { |
| hist[<span class="number">0</span>][(freq.key & <span class="number">0xFF</span>) <span class="kw">as </span>usize] += <span class="number">1</span>; |
| hist[<span class="number">1</span>][((freq.key >> <span class="number">8</span>) & <span class="number">0xFF</span>) <span class="kw">as </span>usize] += <span class="number">1</span>; |
| } |
| |
| <span class="kw">let </span><span class="kw-2">mut </span>n_passes = <span class="number">2</span>; |
| <span class="kw">if </span>symbols0.len() == hist[<span class="number">1</span>][<span class="number">0</span>] { |
| n_passes -= <span class="number">1</span>; |
| } |
| |
| <span class="kw">let </span><span class="kw-2">mut </span>current_symbols = symbols0; |
| <span class="kw">let </span><span class="kw-2">mut </span>new_symbols = symbols1; |
| |
| <span class="kw">for </span>(pass, hist_item) <span class="kw">in </span>hist.iter().enumerate().take(n_passes) { |
| <span class="kw">let </span><span class="kw-2">mut </span>offsets = [<span class="number">0</span>; <span class="number">256</span>]; |
| <span class="kw">let </span><span class="kw-2">mut </span>offset = <span class="number">0</span>; |
| <span class="kw">for </span>i <span class="kw">in </span><span class="number">0</span>..<span class="number">256 </span>{ |
| offsets[i] = offset; |
| offset += hist_item[i]; |
| } |
| |
| <span class="kw">for </span>sym <span class="kw">in </span>current_symbols.iter() { |
| <span class="kw">let </span>j = ((sym.key >> (pass * <span class="number">8</span>)) & <span class="number">0xFF</span>) <span class="kw">as </span>usize; |
| new_symbols[offsets[j]] = <span class="kw-2">*</span>sym; |
| offsets[j] += <span class="number">1</span>; |
| } |
| |
| mem::swap(<span class="kw-2">&mut </span>current_symbols, <span class="kw-2">&mut </span>new_symbols); |
| } |
| |
| current_symbols |
| } |
| |
| <span class="kw">fn </span>calculate_minimum_redundancy(symbols: <span class="kw-2">&mut </span>[SymFreq]) { |
| <span class="kw">match </span>symbols.len() { |
| <span class="number">0 </span>=> (), |
| <span class="number">1 </span>=> symbols[<span class="number">0</span>].key = <span class="number">1</span>, |
| n => { |
| symbols[<span class="number">0</span>].key += symbols[<span class="number">1</span>].key; |
| <span class="kw">let </span><span class="kw-2">mut </span>root = <span class="number">0</span>; |
| <span class="kw">let </span><span class="kw-2">mut </span>leaf = <span class="number">2</span>; |
| <span class="kw">for </span>next <span class="kw">in </span><span class="number">1</span>..n - <span class="number">1 </span>{ |
| <span class="kw">if </span>(leaf >= n) || (symbols[root].key < symbols[leaf].key) { |
| symbols[next].key = symbols[root].key; |
| symbols[root].key = next <span class="kw">as </span>u16; |
| root += <span class="number">1</span>; |
| } <span class="kw">else </span>{ |
| symbols[next].key = symbols[leaf].key; |
| leaf += <span class="number">1</span>; |
| } |
| |
| <span class="kw">if </span>(leaf >= n) || (root < next && symbols[root].key < symbols[leaf].key) { |
| symbols[next].key = symbols[next].key.wrapping_add(symbols[root].key); |
| symbols[root].key = next <span class="kw">as </span>u16; |
| root += <span class="number">1</span>; |
| } <span class="kw">else </span>{ |
| symbols[next].key = symbols[next].key.wrapping_add(symbols[leaf].key); |
| leaf += <span class="number">1</span>; |
| } |
| } |
| |
| symbols[n - <span class="number">2</span>].key = <span class="number">0</span>; |
| <span class="kw">for </span>next <span class="kw">in </span>(<span class="number">0</span>..n - <span class="number">2</span>).rev() { |
| symbols[next].key = symbols[symbols[next].key <span class="kw">as </span>usize].key + <span class="number">1</span>; |
| } |
| |
| <span class="kw">let </span><span class="kw-2">mut </span>avbl = <span class="number">1</span>; |
| <span class="kw">let </span><span class="kw-2">mut </span>used = <span class="number">0</span>; |
| <span class="kw">let </span><span class="kw-2">mut </span>dpth = <span class="number">0</span>; |
| <span class="kw">let </span><span class="kw-2">mut </span>root = (n - <span class="number">2</span>) <span class="kw">as </span>i32; |
| <span class="kw">let </span><span class="kw-2">mut </span>next = (n - <span class="number">1</span>) <span class="kw">as </span>i32; |
| <span class="kw">while </span>avbl > <span class="number">0 </span>{ |
| <span class="kw">while </span>(root >= <span class="number">0</span>) && (symbols[root <span class="kw">as </span>usize].key == dpth) { |
| used += <span class="number">1</span>; |
| root -= <span class="number">1</span>; |
| } |
| <span class="kw">while </span>avbl > used { |
| symbols[next <span class="kw">as </span>usize].key = dpth; |
| next -= <span class="number">1</span>; |
| avbl -= <span class="number">1</span>; |
| } |
| avbl = <span class="number">2 </span>* used; |
| dpth += <span class="number">1</span>; |
| used = <span class="number">0</span>; |
| } |
| } |
| } |
| } |
| |
| <span class="kw">fn </span>enforce_max_code_size(num_codes: <span class="kw-2">&mut </span>[i32], code_list_len: usize, max_code_size: usize) { |
| <span class="kw">if </span>code_list_len <= <span class="number">1 </span>{ |
| <span class="kw">return</span>; |
| } |
| |
| num_codes[max_code_size] += num_codes[max_code_size + <span class="number">1</span>..].iter().sum::<i32>(); |
| <span class="kw">let </span>total = num_codes[<span class="number">1</span>..=max_code_size] |
| .iter() |
| .rev() |
| .enumerate() |
| .fold(<span class="number">0u32</span>, |total, (i, <span class="kw-2">&</span>x)| total + ((x <span class="kw">as </span>u32) << i)); |
| |
| <span class="kw">for _ in </span>(<span class="number">1 </span><< max_code_size)..total { |
| num_codes[max_code_size] -= <span class="number">1</span>; |
| <span class="kw">for </span>i <span class="kw">in </span>(<span class="number">1</span>..max_code_size).rev() { |
| <span class="kw">if </span>num_codes[i] != <span class="number">0 </span>{ |
| num_codes[i] -= <span class="number">1</span>; |
| num_codes[i + <span class="number">1</span>] += <span class="number">2</span>; |
| <span class="kw">break</span>; |
| } |
| } |
| } |
| } |
| |
| <span class="kw">fn </span>optimize_table( |
| <span class="kw-2">&mut </span><span class="self">self</span>, |
| table_num: usize, |
| table_len: usize, |
| code_size_limit: usize, |
| static_table: bool, |
| ) { |
| <span class="kw">let </span><span class="kw-2">mut </span>num_codes = [<span class="number">0i32</span>; MAX_SUPPORTED_HUFF_CODESIZE + <span class="number">1</span>]; |
| <span class="kw">let </span><span class="kw-2">mut </span>next_code = [<span class="number">0u32</span>; MAX_SUPPORTED_HUFF_CODESIZE + <span class="number">1</span>]; |
| |
| <span class="kw">if </span>static_table { |
| <span class="kw">for </span><span class="kw-2">&</span>code_size <span class="kw">in </span><span class="kw-2">&</span><span class="self">self</span>.code_sizes[table_num][..table_len] { |
| num_codes[code_size <span class="kw">as </span>usize] += <span class="number">1</span>; |
| } |
| } <span class="kw">else </span>{ |
| <span class="kw">let </span><span class="kw-2">mut </span>symbols0 = [SymFreq { |
| key: <span class="number">0</span>, |
| sym_index: <span class="number">0</span>, |
| }; MAX_HUFF_SYMBOLS]; |
| <span class="kw">let </span><span class="kw-2">mut </span>symbols1 = [SymFreq { |
| key: <span class="number">0</span>, |
| sym_index: <span class="number">0</span>, |
| }; MAX_HUFF_SYMBOLS]; |
| |
| <span class="kw">let </span><span class="kw-2">mut </span>num_used_symbols = <span class="number">0</span>; |
| <span class="kw">for </span>i <span class="kw">in </span><span class="number">0</span>..table_len { |
| <span class="kw">if </span><span class="self">self</span>.count[table_num][i] != <span class="number">0 </span>{ |
| symbols0[num_used_symbols] = SymFreq { |
| key: <span class="self">self</span>.count[table_num][i], |
| sym_index: i <span class="kw">as </span>u16, |
| }; |
| num_used_symbols += <span class="number">1</span>; |
| } |
| } |
| |
| <span class="kw">let </span>symbols = <span class="self">Self</span>::radix_sort_symbols( |
| <span class="kw-2">&mut </span>symbols0[..num_used_symbols], |
| <span class="kw-2">&mut </span>symbols1[..num_used_symbols], |
| ); |
| <span class="self">Self</span>::calculate_minimum_redundancy(symbols); |
| |
| <span class="kw">for </span>symbol <span class="kw">in </span>symbols.iter() { |
| num_codes[symbol.key <span class="kw">as </span>usize] += <span class="number">1</span>; |
| } |
| |
| <span class="self">Self</span>::enforce_max_code_size(<span class="kw-2">&mut </span>num_codes, num_used_symbols, code_size_limit); |
| |
| memset(<span class="kw-2">&mut </span><span class="self">self</span>.code_sizes[table_num][..], <span class="number">0</span>); |
| memset(<span class="kw-2">&mut </span><span class="self">self</span>.codes[table_num][..], <span class="number">0</span>); |
| |
| <span class="kw">let </span><span class="kw-2">mut </span>last = num_used_symbols; |
| <span class="kw">for </span>(i, <span class="kw-2">&</span>num_item) <span class="kw">in </span>num_codes |
| .iter() |
| .enumerate() |
| .take(code_size_limit + <span class="number">1</span>) |
| .skip(<span class="number">1</span>) |
| { |
| <span class="kw">let </span>first = last - num_item <span class="kw">as </span>usize; |
| <span class="kw">for </span>symbol <span class="kw">in </span><span class="kw-2">&</span>symbols[first..last] { |
| <span class="self">self</span>.code_sizes[table_num][symbol.sym_index <span class="kw">as </span>usize] = i <span class="kw">as </span>u8; |
| } |
| last = first; |
| } |
| } |
| |
| <span class="kw">let </span><span class="kw-2">mut </span>j = <span class="number">0</span>; |
| next_code[<span class="number">1</span>] = <span class="number">0</span>; |
| <span class="kw">for </span>i <span class="kw">in </span><span class="number">2</span>..=code_size_limit { |
| j = (j + num_codes[i - <span class="number">1</span>]) << <span class="number">1</span>; |
| next_code[i] = j <span class="kw">as </span>u32; |
| } |
| |
| <span class="kw">for </span>(<span class="kw-2">&</span>code_size, huff_code) <span class="kw">in </span><span class="self">self</span>.code_sizes[table_num] |
| .iter() |
| .take(table_len) |
| .zip(<span class="self">self</span>.codes[table_num].iter_mut().take(table_len)) |
| { |
| <span class="kw">if </span>code_size == <span class="number">0 </span>{ |
| <span class="kw">continue</span>; |
| } |
| |
| <span class="kw">let </span><span class="kw-2">mut </span>code = next_code[code_size <span class="kw">as </span>usize]; |
| next_code[code_size <span class="kw">as </span>usize] += <span class="number">1</span>; |
| |
| <span class="kw">let </span><span class="kw-2">mut </span>rev_code = <span class="number">0</span>; |
| <span class="kw">for _ in </span><span class="number">0</span>..code_size { |
| rev_code = (rev_code << <span class="number">1</span>) | (code & <span class="number">1</span>); |
| code >>= <span class="number">1</span>; |
| } |
| <span class="kw-2">*</span>huff_code = rev_code <span class="kw">as </span>u16; |
| } |
| } |
| |
| <span class="kw">fn </span>start_static_block(<span class="kw-2">&mut </span><span class="self">self</span>, output: <span class="kw-2">&mut </span>OutputBufferOxide) { |
| memset(<span class="kw-2">&mut </span><span class="self">self</span>.code_sizes[LITLEN_TABLE][<span class="number">0</span>..<span class="number">144</span>], <span class="number">8</span>); |
| memset(<span class="kw-2">&mut </span><span class="self">self</span>.code_sizes[LITLEN_TABLE][<span class="number">144</span>..<span class="number">256</span>], <span class="number">9</span>); |
| memset(<span class="kw-2">&mut </span><span class="self">self</span>.code_sizes[LITLEN_TABLE][<span class="number">256</span>..<span class="number">280</span>], <span class="number">7</span>); |
| memset(<span class="kw-2">&mut </span><span class="self">self</span>.code_sizes[LITLEN_TABLE][<span class="number">280</span>..<span class="number">288</span>], <span class="number">8</span>); |
| |
| memset(<span class="kw-2">&mut </span><span class="self">self</span>.code_sizes[DIST_TABLE][..<span class="number">32</span>], <span class="number">5</span>); |
| |
| <span class="self">self</span>.optimize_table(LITLEN_TABLE, <span class="number">288</span>, <span class="number">15</span>, <span class="bool-val">true</span>); |
| <span class="self">self</span>.optimize_table(DIST_TABLE, <span class="number">32</span>, <span class="number">15</span>, <span class="bool-val">true</span>); |
| |
| output.put_bits(<span class="number">0b01</span>, <span class="number">2</span>) |
| } |
| |
| <span class="kw">fn </span>start_dynamic_block(<span class="kw-2">&mut </span><span class="self">self</span>, output: <span class="kw-2">&mut </span>OutputBufferOxide) -> <span class="prelude-ty">Result</span><()> { |
| <span class="comment">// There will always be one, and only one end of block code. |
| </span><span class="self">self</span>.count[<span class="number">0</span>][<span class="number">256</span>] = <span class="number">1</span>; |
| |
| <span class="self">self</span>.optimize_table(<span class="number">0</span>, MAX_HUFF_SYMBOLS_0, <span class="number">15</span>, <span class="bool-val">false</span>); |
| <span class="self">self</span>.optimize_table(<span class="number">1</span>, MAX_HUFF_SYMBOLS_1, <span class="number">15</span>, <span class="bool-val">false</span>); |
| |
| <span class="kw">let </span>num_lit_codes = <span class="number">286 |
| </span>- <span class="kw-2">&</span><span class="self">self</span>.code_sizes[<span class="number">0</span>][<span class="number">257</span>..<span class="number">286</span>] |
| .iter() |
| .rev() |
| .take_while(|<span class="kw-2">&</span>x| <span class="kw-2">*</span>x == <span class="number">0</span>) |
| .count(); |
| |
| <span class="kw">let </span>num_dist_codes = <span class="number">30 |
| </span>- <span class="kw-2">&</span><span class="self">self</span>.code_sizes[<span class="number">1</span>][<span class="number">1</span>..<span class="number">30</span>] |
| .iter() |
| .rev() |
| .take_while(|<span class="kw-2">&</span>x| <span class="kw-2">*</span>x == <span class="number">0</span>) |
| .count(); |
| |
| <span class="kw">let </span><span class="kw-2">mut </span>code_sizes_to_pack = [<span class="number">0u8</span>; MAX_HUFF_SYMBOLS_0 + MAX_HUFF_SYMBOLS_1]; |
| <span class="kw">let </span><span class="kw-2">mut </span>packed_code_sizes = [<span class="number">0u8</span>; MAX_HUFF_SYMBOLS_0 + MAX_HUFF_SYMBOLS_1]; |
| |
| <span class="kw">let </span>total_code_sizes_to_pack = num_lit_codes + num_dist_codes; |
| |
| code_sizes_to_pack[..num_lit_codes].copy_from_slice(<span class="kw-2">&</span><span class="self">self</span>.code_sizes[<span class="number">0</span>][..num_lit_codes]); |
| |
| code_sizes_to_pack[num_lit_codes..total_code_sizes_to_pack] |
| .copy_from_slice(<span class="kw-2">&</span><span class="self">self</span>.code_sizes[<span class="number">1</span>][..num_dist_codes]); |
| |
| <span class="kw">let </span><span class="kw-2">mut </span>rle = Rle { |
| z_count: <span class="number">0</span>, |
| repeat_count: <span class="number">0</span>, |
| prev_code_size: <span class="number">0xFF</span>, |
| }; |
| |
| memset(<span class="kw-2">&mut </span><span class="self">self</span>.count[HUFF_CODES_TABLE][..MAX_HUFF_SYMBOLS_2], <span class="number">0</span>); |
| |
| <span class="kw">let </span><span class="kw-2">mut </span>packed_pos = <span class="number">0</span>; |
| <span class="kw">for </span><span class="kw-2">&</span>code_size <span class="kw">in </span><span class="kw-2">&</span>code_sizes_to_pack[..total_code_sizes_to_pack] { |
| <span class="kw">if </span>code_size == <span class="number">0 </span>{ |
| rle.prev_code_size(<span class="kw-2">&mut </span>packed_code_sizes, <span class="kw-2">&mut </span>packed_pos, <span class="self">self</span>)<span class="question-mark">?</span>; |
| rle.z_count += <span class="number">1</span>; |
| <span class="kw">if </span>rle.z_count == <span class="number">138 </span>{ |
| rle.zero_code_size(<span class="kw-2">&mut </span>packed_code_sizes, <span class="kw-2">&mut </span>packed_pos, <span class="self">self</span>)<span class="question-mark">?</span>; |
| } |
| } <span class="kw">else </span>{ |
| rle.zero_code_size(<span class="kw-2">&mut </span>packed_code_sizes, <span class="kw-2">&mut </span>packed_pos, <span class="self">self</span>)<span class="question-mark">?</span>; |
| <span class="kw">if </span>code_size != rle.prev_code_size { |
| rle.prev_code_size(<span class="kw-2">&mut </span>packed_code_sizes, <span class="kw-2">&mut </span>packed_pos, <span class="self">self</span>)<span class="question-mark">?</span>; |
| <span class="self">self</span>.count[HUFF_CODES_TABLE][code_size <span class="kw">as </span>usize] = |
| <span class="self">self</span>.count[HUFF_CODES_TABLE][code_size <span class="kw">as </span>usize].wrapping_add(<span class="number">1</span>); |
| write(<span class="kw-2">&</span>[code_size], <span class="kw-2">&mut </span>packed_code_sizes, <span class="kw-2">&mut </span>packed_pos)<span class="question-mark">?</span>; |
| } <span class="kw">else </span>{ |
| rle.repeat_count += <span class="number">1</span>; |
| <span class="kw">if </span>rle.repeat_count == <span class="number">6 </span>{ |
| rle.prev_code_size(<span class="kw-2">&mut </span>packed_code_sizes, <span class="kw-2">&mut </span>packed_pos, <span class="self">self</span>)<span class="question-mark">?</span>; |
| } |
| } |
| } |
| rle.prev_code_size = code_size; |
| } |
| |
| <span class="kw">if </span>rle.repeat_count != <span class="number">0 </span>{ |
| rle.prev_code_size(<span class="kw-2">&mut </span>packed_code_sizes, <span class="kw-2">&mut </span>packed_pos, <span class="self">self</span>)<span class="question-mark">?</span>; |
| } <span class="kw">else </span>{ |
| rle.zero_code_size(<span class="kw-2">&mut </span>packed_code_sizes, <span class="kw-2">&mut </span>packed_pos, <span class="self">self</span>)<span class="question-mark">?</span>; |
| } |
| |
| <span class="self">self</span>.optimize_table(<span class="number">2</span>, MAX_HUFF_SYMBOLS_2, <span class="number">7</span>, <span class="bool-val">false</span>); |
| |
| output.put_bits(<span class="number">2</span>, <span class="number">2</span>); |
| |
| output.put_bits((num_lit_codes - <span class="number">257</span>) <span class="kw">as </span>u32, <span class="number">5</span>); |
| output.put_bits((num_dist_codes - <span class="number">1</span>) <span class="kw">as </span>u32, <span class="number">5</span>); |
| |
| <span class="kw">let </span><span class="kw-2">mut </span>num_bit_lengths = <span class="number">18 |
| </span>- HUFFMAN_LENGTH_ORDER |
| .iter() |
| .rev() |
| .take_while(|<span class="kw-2">&</span>swizzle| <span class="self">self</span>.code_sizes[HUFF_CODES_TABLE][<span class="kw-2">*</span>swizzle <span class="kw">as </span>usize] == <span class="number">0</span>) |
| .count(); |
| |
| num_bit_lengths = cmp::max(<span class="number">4</span>, num_bit_lengths + <span class="number">1</span>); |
| output.put_bits(num_bit_lengths <span class="kw">as </span>u32 - <span class="number">4</span>, <span class="number">4</span>); |
| <span class="kw">for </span><span class="kw-2">&</span>swizzle <span class="kw">in </span><span class="kw-2">&</span>HUFFMAN_LENGTH_ORDER[..num_bit_lengths] { |
| output.put_bits( |
| u32::from(<span class="self">self</span>.code_sizes[HUFF_CODES_TABLE][swizzle <span class="kw">as </span>usize]), |
| <span class="number">3</span>, |
| ); |
| } |
| |
| <span class="kw">let </span><span class="kw-2">mut </span>packed_code_size_index = <span class="number">0</span>; |
| <span class="kw">while </span>packed_code_size_index < packed_pos { |
| <span class="kw">let </span>code = packed_code_sizes[packed_code_size_index] <span class="kw">as </span>usize; |
| packed_code_size_index += <span class="number">1</span>; |
| <span class="macro">assert!</span>(code < MAX_HUFF_SYMBOLS_2); |
| output.put_bits( |
| u32::from(<span class="self">self</span>.codes[HUFF_CODES_TABLE][code]), |
| u32::from(<span class="self">self</span>.code_sizes[HUFF_CODES_TABLE][code]), |
| ); |
| <span class="kw">if </span>code >= <span class="number">16 </span>{ |
| output.put_bits( |
| u32::from(packed_code_sizes[packed_code_size_index]), |
| [<span class="number">2</span>, <span class="number">3</span>, <span class="number">7</span>][code - <span class="number">16</span>], |
| ); |
| packed_code_size_index += <span class="number">1</span>; |
| } |
| } |
| |
| <span class="prelude-val">Ok</span>(()) |
| } |
| } |
| |
| <span class="kw">struct </span>DictOxide { |
| <span class="doccomment">/// The maximum number of checks in the hash chain, for the initial, |
| /// and the lazy match respectively. |
| </span><span class="kw">pub </span>max_probes: [u32; <span class="number">2</span>], |
| <span class="doccomment">/// Buffer of input data. |
| /// Padded with 1 byte to simplify matching code in `compress_fast`. |
| </span><span class="kw">pub </span>b: Box<HashBuffers>, |
| |
| <span class="kw">pub </span>code_buf_dict_pos: usize, |
| <span class="kw">pub </span>lookahead_size: usize, |
| <span class="kw">pub </span>lookahead_pos: usize, |
| <span class="kw">pub </span>size: usize, |
| } |
| |
| <span class="kw">const fn </span>probes_from_flags(flags: u32) -> [u32; <span class="number">2</span>] { |
| [ |
| <span class="number">1 </span>+ ((flags & <span class="number">0xFFF</span>) + <span class="number">2</span>) / <span class="number">3</span>, |
| <span class="number">1 </span>+ (((flags & <span class="number">0xFFF</span>) >> <span class="number">2</span>) + <span class="number">2</span>) / <span class="number">3</span>, |
| ] |
| } |
| |
| <span class="kw">impl </span>DictOxide { |
| <span class="kw">fn </span>new(flags: u32) -> <span class="self">Self </span>{ |
| DictOxide { |
| max_probes: probes_from_flags(flags), |
| b: Box::default(), |
| code_buf_dict_pos: <span class="number">0</span>, |
| lookahead_size: <span class="number">0</span>, |
| lookahead_pos: <span class="number">0</span>, |
| size: <span class="number">0</span>, |
| } |
| } |
| |
| <span class="kw">fn </span>update_flags(<span class="kw-2">&mut </span><span class="self">self</span>, flags: u32) { |
| <span class="self">self</span>.max_probes = probes_from_flags(flags); |
| } |
| |
| <span class="kw">fn </span>reset(<span class="kw-2">&mut </span><span class="self">self</span>) { |
| <span class="self">self</span>.b.reset(); |
| <span class="self">self</span>.code_buf_dict_pos = <span class="number">0</span>; |
| <span class="self">self</span>.lookahead_size = <span class="number">0</span>; |
| <span class="self">self</span>.lookahead_pos = <span class="number">0</span>; |
| <span class="self">self</span>.size = <span class="number">0</span>; |
| } |
| |
| <span class="doccomment">/// Do an unaligned read of the data at `pos` in the dictionary and treat it as if it was of |
| /// type T. |
| </span><span class="attribute">#[inline] |
| </span><span class="kw">fn </span>read_unaligned_u32(<span class="kw-2">&</span><span class="self">self</span>, pos: usize) -> u32 { |
| <span class="comment">// Masking the value here helps avoid bounds checks. |
| </span><span class="kw">let </span>pos = (pos & LZ_DICT_SIZE_MASK) <span class="kw">as </span>usize; |
| <span class="kw">let </span>end = pos + <span class="number">4</span>; |
| <span class="comment">// Somehow this assertion makes things faster. |
| </span><span class="macro">assert!</span>(end < LZ_DICT_FULL_SIZE); |
| |
| <span class="kw">let </span>bytes: [u8; <span class="number">4</span>] = <span class="self">self</span>.b.dict[pos..end].try_into().unwrap(); |
| u32::from_le_bytes(bytes) |
| } |
| |
| <span class="doccomment">/// Do an unaligned read of the data at `pos` in the dictionary and treat it as if it was of |
| /// type T. |
| </span><span class="attribute">#[inline] |
| </span><span class="kw">fn </span>read_unaligned_u64(<span class="kw-2">&</span><span class="self">self</span>, pos: usize) -> u64 { |
| <span class="kw">let </span>pos = pos <span class="kw">as </span>usize; |
| <span class="kw">let </span>bytes: [u8; <span class="number">8</span>] = <span class="self">self</span>.b.dict[pos..pos + <span class="number">8</span>].try_into().unwrap(); |
| u64::from_le_bytes(bytes) |
| } |
| |
| <span class="doccomment">/// Do an unaligned read of the data at `pos` in the dictionary and treat it as if it was of |
| /// type T. |
| </span><span class="attribute">#[inline] |
| </span><span class="kw">fn </span>read_as_u16(<span class="kw-2">&</span><span class="self">self</span>, pos: usize) -> u16 { |
| read_u16_le(<span class="kw-2">&</span><span class="self">self</span>.b.dict[..], pos) |
| } |
| |
| <span class="doccomment">/// Try to find a match for the data at lookahead_pos in the dictionary that is |
| /// longer than `match_len`. |
| /// Returns a tuple containing (match_distance, match_length). Will be equal to the input |
| /// values if no better matches were found. |
| </span><span class="kw">fn </span>find_match( |
| <span class="kw-2">&</span><span class="self">self</span>, |
| lookahead_pos: usize, |
| max_dist: usize, |
| max_match_len: u32, |
| <span class="kw-2">mut </span>match_dist: u32, |
| <span class="kw-2">mut </span>match_len: u32, |
| ) -> (u32, u32) { |
| <span class="comment">// Clamp the match len and max_match_len to be valid. (It should be when this is called, but |
| // do it for now just in case for safety reasons.) |
| // This should normally end up as at worst conditional moves, |
| // so it shouldn't slow us down much. |
| // TODO: Statically verify these so we don't need to do this. |
| </span><span class="kw">let </span>max_match_len = cmp::min(MAX_MATCH_LEN <span class="kw">as </span>u32, max_match_len); |
| match_len = cmp::max(match_len, <span class="number">1</span>); |
| |
| <span class="kw">let </span>pos = lookahead_pos <span class="kw">as </span>usize & LZ_DICT_SIZE_MASK; |
| <span class="kw">let </span><span class="kw-2">mut </span>probe_pos = pos; |
| <span class="comment">// Number of probes into the hash chains. |
| </span><span class="kw">let </span><span class="kw-2">mut </span>num_probes_left = <span class="self">self</span>.max_probes[(match_len >= <span class="number">32</span>) <span class="kw">as </span>usize]; |
| |
| <span class="comment">// If we already have a match of the full length don't bother searching for another one. |
| </span><span class="kw">if </span>max_match_len <= match_len { |
| <span class="kw">return </span>(match_dist, match_len); |
| } |
| |
| <span class="comment">// Read the last byte of the current match, and the next one, used to compare matches. |
| </span><span class="kw">let </span><span class="kw-2">mut </span>c01: u16 = <span class="self">self</span>.read_as_u16(pos <span class="kw">as </span>usize + match_len <span class="kw">as </span>usize - <span class="number">1</span>); |
| <span class="comment">// Read the two bytes at the end position of the current match. |
| </span><span class="kw">let </span>s01: u16 = <span class="self">self</span>.read_as_u16(pos <span class="kw">as </span>usize); |
| |
| <span class="lifetime">'outer</span>: <span class="kw">loop </span>{ |
| <span class="kw">let </span><span class="kw-2">mut </span>dist; |
| <span class="lifetime">'found</span>: <span class="kw">loop </span>{ |
| num_probes_left -= <span class="number">1</span>; |
| <span class="kw">if </span>num_probes_left == <span class="number">0 </span>{ |
| <span class="comment">// We have done as many probes in the hash chain as the current compression |
| // settings allow, so return the best match we found, if any. |
| </span><span class="kw">return </span>(match_dist, match_len); |
| } |
| |
| <span class="kw">for _ in </span><span class="number">0</span>..<span class="number">3 </span>{ |
| <span class="kw">let </span>next_probe_pos = <span class="self">self</span>.b.next[probe_pos <span class="kw">as </span>usize] <span class="kw">as </span>usize; |
| |
| dist = (lookahead_pos - next_probe_pos) & <span class="number">0xFFFF</span>; |
| <span class="kw">if </span>next_probe_pos == <span class="number">0 </span>|| dist > max_dist { |
| <span class="comment">// We reached the end of the hash chain, or the next value is further away |
| // than the maximum allowed distance, so return the best match we found, if |
| // any. |
| </span><span class="kw">return </span>(match_dist, match_len); |
| } |
| |
| <span class="comment">// Mask the position value to get the position in the hash chain of the next |
| // position to match against. |
| </span>probe_pos = next_probe_pos & LZ_DICT_SIZE_MASK; |
| |
| <span class="kw">if </span><span class="self">self</span>.read_as_u16((probe_pos + match_len <span class="kw">as </span>usize - <span class="number">1</span>) <span class="kw">as </span>usize) == c01 { |
| <span class="kw">break </span><span class="lifetime">'found</span>; |
| } |
| } |
| } |
| |
| <span class="kw">if </span>dist == <span class="number">0 </span>{ |
| <span class="comment">// We've looked through the whole match range, so return the best match we |
| // found. |
| </span><span class="kw">return </span>(match_dist, match_len); |
| } |
| |
| <span class="comment">// Check if the two first bytes match. |
| </span><span class="kw">if </span><span class="self">self</span>.read_as_u16(probe_pos <span class="kw">as </span>usize) != s01 { |
| <span class="kw">continue</span>; |
| } |
| |
| <span class="kw">let </span><span class="kw-2">mut </span>p = pos + <span class="number">2</span>; |
| <span class="kw">let </span><span class="kw-2">mut </span>q = probe_pos + <span class="number">2</span>; |
| <span class="comment">// The first two bytes matched, so check the full length of the match. |
| </span><span class="kw">for _ in </span><span class="number">0</span>..<span class="number">32 </span>{ |
| <span class="kw">let </span>p_data: u64 = <span class="self">self</span>.read_unaligned_u64(p); |
| <span class="kw">let </span>q_data: u64 = <span class="self">self</span>.read_unaligned_u64(q); |
| <span class="comment">// Compare of 8 bytes at a time by using unaligned loads of 64-bit integers. |
| </span><span class="kw">let </span>xor_data = p_data ^ q_data; |
| <span class="kw">if </span>xor_data == <span class="number">0 </span>{ |
| p += <span class="number">8</span>; |
| q += <span class="number">8</span>; |
| } <span class="kw">else </span>{ |
| <span class="comment">// If not all of the last 8 bytes matched, check how may of them did. |
| </span><span class="kw">let </span>trailing = xor_data.trailing_zeros(); |
| |
| <span class="kw">let </span>probe_len = p - pos + (trailing <span class="kw">as </span>usize >> <span class="number">3</span>); |
| <span class="kw">if </span>probe_len > match_len <span class="kw">as </span>usize { |
| match_dist = dist <span class="kw">as </span>u32; |
| match_len = cmp::min(max_match_len, probe_len <span class="kw">as </span>u32); |
| <span class="kw">if </span>match_len == max_match_len { |
| <span class="comment">// We found a match that had the maximum allowed length, |
| // so there is now point searching further. |
| </span><span class="kw">return </span>(match_dist, match_len); |
| } |
| <span class="comment">// We found a better match, so save the last two bytes for further match |
| // comparisons. |
| </span>c01 = <span class="self">self</span>.read_as_u16(pos + match_len <span class="kw">as </span>usize - <span class="number">1</span>) |
| } |
| <span class="kw">continue </span><span class="lifetime">'outer</span>; |
| } |
| } |
| |
| <span class="kw">return </span>(dist <span class="kw">as </span>u32, cmp::min(max_match_len, MAX_MATCH_LEN <span class="kw">as </span>u32)); |
| } |
| } |
| } |
| |
| <span class="kw">struct </span>ParamsOxide { |
| <span class="kw">pub </span>flags: u32, |
| <span class="kw">pub </span>greedy_parsing: bool, |
| <span class="kw">pub </span>block_index: u32, |
| |
| <span class="kw">pub </span>saved_match_dist: u32, |
| <span class="kw">pub </span>saved_match_len: u32, |
| <span class="kw">pub </span>saved_lit: u8, |
| |
| <span class="kw">pub </span>flush: TDEFLFlush, |
| <span class="kw">pub </span>flush_ofs: u32, |
| <span class="kw">pub </span>flush_remaining: u32, |
| <span class="kw">pub </span>finished: bool, |
| |
| <span class="kw">pub </span>adler32: u32, |
| |
| <span class="kw">pub </span>src_pos: usize, |
| |
| <span class="kw">pub </span>out_buf_ofs: usize, |
| <span class="kw">pub </span>prev_return_status: TDEFLStatus, |
| |
| <span class="kw">pub </span>saved_bit_buffer: u32, |
| <span class="kw">pub </span>saved_bits_in: u32, |
| |
| <span class="kw">pub </span>local_buf: Box<LocalBuf>, |
| } |
| |
| <span class="kw">impl </span>ParamsOxide { |
| <span class="kw">fn </span>new(flags: u32) -> <span class="self">Self </span>{ |
| ParamsOxide { |
| flags, |
| greedy_parsing: flags & TDEFL_GREEDY_PARSING_FLAG != <span class="number">0</span>, |
| block_index: <span class="number">0</span>, |
| saved_match_dist: <span class="number">0</span>, |
| saved_match_len: <span class="number">0</span>, |
| saved_lit: <span class="number">0</span>, |
| flush: TDEFLFlush::None, |
| flush_ofs: <span class="number">0</span>, |
| flush_remaining: <span class="number">0</span>, |
| finished: <span class="bool-val">false</span>, |
| adler32: MZ_ADLER32_INIT, |
| src_pos: <span class="number">0</span>, |
| out_buf_ofs: <span class="number">0</span>, |
| prev_return_status: TDEFLStatus::Okay, |
| saved_bit_buffer: <span class="number">0</span>, |
| saved_bits_in: <span class="number">0</span>, |
| local_buf: Box::default(), |
| } |
| } |
| |
| <span class="kw">fn </span>update_flags(<span class="kw-2">&mut </span><span class="self">self</span>, flags: u32) { |
| <span class="self">self</span>.flags = flags; |
| <span class="self">self</span>.greedy_parsing = <span class="self">self</span>.flags & TDEFL_GREEDY_PARSING_FLAG != <span class="number">0</span>; |
| } |
| |
| <span class="doccomment">/// Reset state, saving settings. |
| </span><span class="kw">fn </span>reset(<span class="kw-2">&mut </span><span class="self">self</span>) { |
| <span class="self">self</span>.block_index = <span class="number">0</span>; |
| <span class="self">self</span>.saved_match_len = <span class="number">0</span>; |
| <span class="self">self</span>.saved_match_dist = <span class="number">0</span>; |
| <span class="self">self</span>.saved_lit = <span class="number">0</span>; |
| <span class="self">self</span>.flush = TDEFLFlush::None; |
| <span class="self">self</span>.flush_ofs = <span class="number">0</span>; |
| <span class="self">self</span>.flush_remaining = <span class="number">0</span>; |
| <span class="self">self</span>.finished = <span class="bool-val">false</span>; |
| <span class="self">self</span>.adler32 = MZ_ADLER32_INIT; |
| <span class="self">self</span>.src_pos = <span class="number">0</span>; |
| <span class="self">self</span>.out_buf_ofs = <span class="number">0</span>; |
| <span class="self">self</span>.prev_return_status = TDEFLStatus::Okay; |
| <span class="self">self</span>.saved_bit_buffer = <span class="number">0</span>; |
| <span class="self">self</span>.saved_bits_in = <span class="number">0</span>; |
| <span class="self">self</span>.local_buf.b = [<span class="number">0</span>; OUT_BUF_SIZE]; |
| } |
| } |
| |
| <span class="kw">struct </span>LZOxide { |
| <span class="kw">pub </span>codes: [u8; LZ_CODE_BUF_SIZE], |
| <span class="kw">pub </span>code_position: usize, |
| <span class="kw">pub </span>flag_position: usize, |
| |
| <span class="comment">// The total number of bytes in the current block. |
| // (Could maybe use usize, but it's not possible to exceed a block size of ) |
| </span><span class="kw">pub </span>total_bytes: u32, |
| <span class="kw">pub </span>num_flags_left: u32, |
| } |
| |
| <span class="kw">impl </span>LZOxide { |
| <span class="kw">const fn </span>new() -> <span class="self">Self </span>{ |
| LZOxide { |
| codes: [<span class="number">0</span>; LZ_CODE_BUF_SIZE], |
| code_position: <span class="number">1</span>, |
| flag_position: <span class="number">0</span>, |
| total_bytes: <span class="number">0</span>, |
| num_flags_left: <span class="number">8</span>, |
| } |
| } |
| |
| <span class="kw">fn </span>write_code(<span class="kw-2">&mut </span><span class="self">self</span>, val: u8) { |
| <span class="self">self</span>.codes[<span class="self">self</span>.code_position] = val; |
| <span class="self">self</span>.code_position += <span class="number">1</span>; |
| } |
| |
| <span class="kw">fn </span>init_flag(<span class="kw-2">&mut </span><span class="self">self</span>) { |
| <span class="kw">if </span><span class="self">self</span>.num_flags_left == <span class="number">8 </span>{ |
| <span class="kw-2">*</span><span class="self">self</span>.get_flag() = <span class="number">0</span>; |
| <span class="self">self</span>.code_position -= <span class="number">1</span>; |
| } <span class="kw">else </span>{ |
| <span class="kw-2">*</span><span class="self">self</span>.get_flag() >>= <span class="self">self</span>.num_flags_left; |
| } |
| } |
| |
| <span class="kw">fn </span>get_flag(<span class="kw-2">&mut </span><span class="self">self</span>) -> <span class="kw-2">&mut </span>u8 { |
| <span class="kw-2">&mut </span><span class="self">self</span>.codes[<span class="self">self</span>.flag_position] |
| } |
| |
| <span class="kw">fn </span>plant_flag(<span class="kw-2">&mut </span><span class="self">self</span>) { |
| <span class="self">self</span>.flag_position = <span class="self">self</span>.code_position; |
| <span class="self">self</span>.code_position += <span class="number">1</span>; |
| } |
| |
| <span class="kw">fn </span>consume_flag(<span class="kw-2">&mut </span><span class="self">self</span>) { |
| <span class="self">self</span>.num_flags_left -= <span class="number">1</span>; |
| <span class="kw">if </span><span class="self">self</span>.num_flags_left == <span class="number">0 </span>{ |
| <span class="self">self</span>.num_flags_left = <span class="number">8</span>; |
| <span class="self">self</span>.plant_flag(); |
| } |
| } |
| } |
| |
| <span class="kw">fn </span>compress_lz_codes( |
| huff: <span class="kw-2">&</span>HuffmanOxide, |
| output: <span class="kw-2">&mut </span>OutputBufferOxide, |
| lz_code_buf: <span class="kw-2">&</span>[u8], |
| ) -> <span class="prelude-ty">Result</span><bool> { |
| <span class="kw">let </span><span class="kw-2">mut </span>flags = <span class="number">1</span>; |
| <span class="kw">let </span><span class="kw-2">mut </span>bb = BitBuffer { |
| bit_buffer: u64::from(output.bit_buffer), |
| bits_in: output.bits_in, |
| }; |
| |
| <span class="kw">let </span><span class="kw-2">mut </span>i: usize = <span class="number">0</span>; |
| <span class="kw">while </span>i < lz_code_buf.len() { |
| <span class="kw">if </span>flags == <span class="number">1 </span>{ |
| flags = u32::from(lz_code_buf[i]) | <span class="number">0x100</span>; |
| i += <span class="number">1</span>; |
| } |
| |
| <span class="comment">// The lz code was a length code |
| </span><span class="kw">if </span>flags & <span class="number">1 </span>== <span class="number">1 </span>{ |
| flags >>= <span class="number">1</span>; |
| |
| <span class="kw">let </span>sym; |
| <span class="kw">let </span>num_extra_bits; |
| |
| <span class="kw">let </span>match_len = lz_code_buf[i] <span class="kw">as </span>usize; |
| |
| <span class="kw">let </span>match_dist = read_u16_le(lz_code_buf, i + <span class="number">1</span>); |
| |
| i += <span class="number">3</span>; |
| |
| <span class="macro">debug_assert!</span>(huff.code_sizes[<span class="number">0</span>][LEN_SYM[match_len] <span class="kw">as </span>usize] != <span class="number">0</span>); |
| bb.put_fast( |
| u64::from(huff.codes[<span class="number">0</span>][LEN_SYM[match_len] <span class="kw">as </span>usize]), |
| u32::from(huff.code_sizes[<span class="number">0</span>][LEN_SYM[match_len] <span class="kw">as </span>usize]), |
| ); |
| bb.put_fast( |
| match_len <span class="kw">as </span>u64 & u64::from(BITMASKS[LEN_EXTRA[match_len] <span class="kw">as </span>usize]), |
| u32::from(LEN_EXTRA[match_len]), |
| ); |
| |
| <span class="kw">if </span>match_dist < <span class="number">512 </span>{ |
| sym = SMALL_DIST_SYM[match_dist <span class="kw">as </span>usize] <span class="kw">as </span>usize; |
| num_extra_bits = SMALL_DIST_EXTRA[match_dist <span class="kw">as </span>usize] <span class="kw">as </span>usize; |
| } <span class="kw">else </span>{ |
| sym = LARGE_DIST_SYM[(match_dist >> <span class="number">8</span>) <span class="kw">as </span>usize] <span class="kw">as </span>usize; |
| num_extra_bits = LARGE_DIST_EXTRA[(match_dist >> <span class="number">8</span>) <span class="kw">as </span>usize] <span class="kw">as </span>usize; |
| } |
| |
| <span class="macro">debug_assert!</span>(huff.code_sizes[<span class="number">1</span>][sym] != <span class="number">0</span>); |
| bb.put_fast( |
| u64::from(huff.codes[<span class="number">1</span>][sym]), |
| u32::from(huff.code_sizes[<span class="number">1</span>][sym]), |
| ); |
| bb.put_fast( |
| u64::from(match_dist) & u64::from(BITMASKS[num_extra_bits <span class="kw">as </span>usize]), |
| num_extra_bits <span class="kw">as </span>u32, |
| ); |
| } <span class="kw">else </span>{ |
| <span class="comment">// The lz code was a literal |
| </span><span class="kw">for _ in </span><span class="number">0</span>..<span class="number">3 </span>{ |
| flags >>= <span class="number">1</span>; |
| <span class="kw">let </span>lit = lz_code_buf[i]; |
| i += <span class="number">1</span>; |
| |
| <span class="macro">debug_assert!</span>(huff.code_sizes[<span class="number">0</span>][lit <span class="kw">as </span>usize] != <span class="number">0</span>); |
| bb.put_fast( |
| u64::from(huff.codes[<span class="number">0</span>][lit <span class="kw">as </span>usize]), |
| u32::from(huff.code_sizes[<span class="number">0</span>][lit <span class="kw">as </span>usize]), |
| ); |
| |
| <span class="kw">if </span>flags & <span class="number">1 </span>== <span class="number">1 </span>|| i >= lz_code_buf.len() { |
| <span class="kw">break</span>; |
| } |
| } |
| } |
| |
| bb.flush(output)<span class="question-mark">?</span>; |
| } |
| |
| output.bits_in = <span class="number">0</span>; |
| output.bit_buffer = <span class="number">0</span>; |
| <span class="kw">while </span>bb.bits_in != <span class="number">0 </span>{ |
| <span class="kw">let </span>n = cmp::min(bb.bits_in, <span class="number">16</span>); |
| output.put_bits(bb.bit_buffer <span class="kw">as </span>u32 & BITMASKS[n <span class="kw">as </span>usize], n); |
| bb.bit_buffer >>= n; |
| bb.bits_in -= n; |
| } |
| |
| <span class="comment">// Output the end of block symbol. |
| </span>output.put_bits( |
| u32::from(huff.codes[<span class="number">0</span>][<span class="number">256</span>]), |
| u32::from(huff.code_sizes[<span class="number">0</span>][<span class="number">256</span>]), |
| ); |
| |
| <span class="prelude-val">Ok</span>(<span class="bool-val">true</span>) |
| } |
| |
| <span class="kw">fn </span>compress_block( |
| huff: <span class="kw-2">&mut </span>HuffmanOxide, |
| output: <span class="kw-2">&mut </span>OutputBufferOxide, |
| lz: <span class="kw-2">&</span>LZOxide, |
| static_block: bool, |
| ) -> <span class="prelude-ty">Result</span><bool> { |
| <span class="kw">if </span>static_block { |
| huff.start_static_block(output); |
| } <span class="kw">else </span>{ |
| huff.start_dynamic_block(output)<span class="question-mark">?</span>; |
| } |
| |
| compress_lz_codes(huff, output, <span class="kw-2">&</span>lz.codes[..lz.code_position]) |
| } |
| |
| <span class="kw">fn </span>flush_block( |
| d: <span class="kw-2">&mut </span>CompressorOxide, |
| callback: <span class="kw-2">&mut </span>CallbackOxide, |
| flush: TDEFLFlush, |
| ) -> <span class="prelude-ty">Result</span><i32> { |
| <span class="kw">let </span><span class="kw-2">mut </span>saved_buffer; |
| { |
| <span class="kw">let </span><span class="kw-2">mut </span>output = callback |
| .out |
| .new_output_buffer(<span class="kw-2">&mut </span>d.params.local_buf.b, d.params.out_buf_ofs); |
| output.bit_buffer = d.params.saved_bit_buffer; |
| output.bits_in = d.params.saved_bits_in; |
| |
| <span class="kw">let </span>use_raw_block = (d.params.flags & TDEFL_FORCE_ALL_RAW_BLOCKS != <span class="number">0</span>) |
| && (d.dict.lookahead_pos - d.dict.code_buf_dict_pos) <= d.dict.size; |
| |
| <span class="macro">assert!</span>(d.params.flush_remaining == <span class="number">0</span>); |
| d.params.flush_ofs = <span class="number">0</span>; |
| d.params.flush_remaining = <span class="number">0</span>; |
| |
| d.lz.init_flag(); |
| |
| <span class="comment">// If we are at the start of the stream, write the zlib header if requested. |
| </span><span class="kw">if </span>d.params.flags & TDEFL_WRITE_ZLIB_HEADER != <span class="number">0 </span>&& d.params.block_index == <span class="number">0 </span>{ |
| <span class="kw">let </span>header = zlib::header_from_flags(d.params.flags <span class="kw">as </span>u32); |
| output.put_bits(header[<span class="number">0</span>].into(), <span class="number">8</span>); |
| output.put_bits(header[<span class="number">1</span>].into(), <span class="number">8</span>); |
| } |
| |
| <span class="comment">// Output the block header. |
| </span>output.put_bits((flush == TDEFLFlush::Finish) <span class="kw">as </span>u32, <span class="number">1</span>); |
| |
| saved_buffer = output.save(); |
| |
| <span class="kw">let </span>comp_success = <span class="kw">if </span>!use_raw_block { |
| <span class="kw">let </span>use_static = |
| (d.params.flags & TDEFL_FORCE_ALL_STATIC_BLOCKS != <span class="number">0</span>) || (d.lz.total_bytes < <span class="number">48</span>); |
| compress_block(<span class="kw-2">&mut </span>d.huff, <span class="kw-2">&mut </span>output, <span class="kw-2">&</span>d.lz, use_static)<span class="question-mark">? |
| </span>} <span class="kw">else </span>{ |
| <span class="bool-val">false |
| </span>}; |
| |
| <span class="comment">// If we failed to compress anything and the output would take up more space than the output |
| // data, output a stored block instead, which has at most 5 bytes of overhead. |
| // We only use some simple heuristics for now. |
| // A stored block will have an overhead of at least 4 bytes containing the block length |
| // but usually more due to the length parameters having to start at a byte boundary and thus |
| // requiring up to 5 bytes of padding. |
| // As a static block will have an overhead of at most 1 bit per byte |
| // (as literals are either 8 or 9 bytes), a raw block will |
| // never take up less space if the number of input bytes are less than 32. |
| </span><span class="kw">let </span>expanded = (d.lz.total_bytes > <span class="number">32</span>) |
| && (output.inner_pos - saved_buffer.pos + <span class="number">1 </span>>= (d.lz.total_bytes <span class="kw">as </span>usize)) |
| && (d.dict.lookahead_pos - d.dict.code_buf_dict_pos <= d.dict.size); |
| |
| <span class="kw">if </span>use_raw_block || expanded { |
| output.load(saved_buffer); |
| |
| <span class="comment">// Block header. |
| </span>output.put_bits(<span class="number">0</span>, <span class="number">2</span>); |
| |
| <span class="comment">// Block length has to start on a byte boundary, s opad. |
| </span>output.pad_to_bytes(); |
| |
| <span class="comment">// Block length and ones complement of block length. |
| </span>output.put_bits(d.lz.total_bytes & <span class="number">0xFFFF</span>, <span class="number">16</span>); |
| output.put_bits(!d.lz.total_bytes & <span class="number">0xFFFF</span>, <span class="number">16</span>); |
| |
| <span class="comment">// Write the actual bytes. |
| </span><span class="kw">for </span>i <span class="kw">in </span><span class="number">0</span>..d.lz.total_bytes { |
| <span class="kw">let </span>pos = (d.dict.code_buf_dict_pos + i <span class="kw">as </span>usize) & LZ_DICT_SIZE_MASK; |
| output.put_bits(u32::from(d.dict.b.dict[pos <span class="kw">as </span>usize]), <span class="number">8</span>); |
| } |
| } <span class="kw">else if </span>!comp_success { |
| output.load(saved_buffer); |
| compress_block(<span class="kw-2">&mut </span>d.huff, <span class="kw-2">&mut </span>output, <span class="kw-2">&</span>d.lz, <span class="bool-val">true</span>)<span class="question-mark">?</span>; |
| } |
| |
| <span class="kw">if </span>flush != TDEFLFlush::None { |
| <span class="kw">if </span>flush == TDEFLFlush::Finish { |
| output.pad_to_bytes(); |
| <span class="kw">if </span>d.params.flags & TDEFL_WRITE_ZLIB_HEADER != <span class="number">0 </span>{ |
| <span class="kw">let </span><span class="kw-2">mut </span>adler = d.params.adler32; |
| <span class="kw">for _ in </span><span class="number">0</span>..<span class="number">4 </span>{ |
| output.put_bits((adler >> <span class="number">24</span>) & <span class="number">0xFF</span>, <span class="number">8</span>); |
| adler <<= <span class="number">8</span>; |
| } |
| } |
| } <span class="kw">else </span>{ |
| <span class="comment">// Sync or Full flush. |
| // Output an empty raw block. |
| </span>output.put_bits(<span class="number">0</span>, <span class="number">3</span>); |
| output.pad_to_bytes(); |
| output.put_bits(<span class="number">0</span>, <span class="number">16</span>); |
| output.put_bits(<span class="number">0xFFFF</span>, <span class="number">16</span>); |
| } |
| } |
| |
| memset(<span class="kw-2">&mut </span>d.huff.count[<span class="number">0</span>][..MAX_HUFF_SYMBOLS_0], <span class="number">0</span>); |
| memset(<span class="kw-2">&mut </span>d.huff.count[<span class="number">1</span>][..MAX_HUFF_SYMBOLS_1], <span class="number">0</span>); |
| |
| d.lz.code_position = <span class="number">1</span>; |
| d.lz.flag_position = <span class="number">0</span>; |
| d.lz.num_flags_left = <span class="number">8</span>; |
| d.dict.code_buf_dict_pos += d.lz.total_bytes <span class="kw">as </span>usize; |
| d.lz.total_bytes = <span class="number">0</span>; |
| d.params.block_index += <span class="number">1</span>; |
| |
| saved_buffer = output.save(); |
| |
| d.params.saved_bit_buffer = saved_buffer.bit_buffer; |
| d.params.saved_bits_in = saved_buffer.bits_in; |
| } |
| |
| <span class="prelude-val">Ok</span>(callback.flush_output(saved_buffer, <span class="kw-2">&mut </span>d.params)) |
| } |
| |
| <span class="kw">fn </span>record_literal(h: <span class="kw-2">&mut </span>HuffmanOxide, lz: <span class="kw-2">&mut </span>LZOxide, lit: u8) { |
| lz.total_bytes += <span class="number">1</span>; |
| lz.write_code(lit); |
| |
| <span class="kw-2">*</span>lz.get_flag() >>= <span class="number">1</span>; |
| lz.consume_flag(); |
| |
| h.count[<span class="number">0</span>][lit <span class="kw">as </span>usize] += <span class="number">1</span>; |
| } |
| |
| <span class="kw">fn </span>record_match(h: <span class="kw-2">&mut </span>HuffmanOxide, lz: <span class="kw-2">&mut </span>LZOxide, <span class="kw-2">mut </span>match_len: u32, <span class="kw-2">mut </span>match_dist: u32) { |
| <span class="macro">assert!</span>(match_len >= MIN_MATCH_LEN.into()); |
| <span class="macro">assert!</span>(match_dist >= <span class="number">1</span>); |
| <span class="macro">assert!</span>(match_dist <span class="kw">as </span>usize <= LZ_DICT_SIZE); |
| |
| lz.total_bytes += match_len; |
| match_dist -= <span class="number">1</span>; |
| match_len -= u32::from(MIN_MATCH_LEN); |
| lz.write_code(match_len <span class="kw">as </span>u8); |
| lz.write_code(match_dist <span class="kw">as </span>u8); |
| lz.write_code((match_dist >> <span class="number">8</span>) <span class="kw">as </span>u8); |
| |
| <span class="kw-2">*</span>lz.get_flag() >>= <span class="number">1</span>; |
| <span class="kw-2">*</span>lz.get_flag() |= <span class="number">0x80</span>; |
| lz.consume_flag(); |
| |
| <span class="kw">let </span>symbol = <span class="kw">if </span>match_dist < <span class="number">512 </span>{ |
| SMALL_DIST_SYM[match_dist <span class="kw">as </span>usize] |
| } <span class="kw">else </span>{ |
| LARGE_DIST_SYM[((match_dist >> <span class="number">8</span>) & <span class="number">127</span>) <span class="kw">as </span>usize] |
| } <span class="kw">as </span>usize; |
| h.count[<span class="number">1</span>][symbol] += <span class="number">1</span>; |
| h.count[<span class="number">0</span>][LEN_SYM[match_len <span class="kw">as </span>usize] <span class="kw">as </span>usize] += <span class="number">1</span>; |
| } |
| |
| <span class="kw">fn </span>compress_normal(d: <span class="kw-2">&mut </span>CompressorOxide, callback: <span class="kw-2">&mut </span>CallbackOxide) -> bool { |
| <span class="kw">let </span><span class="kw-2">mut </span>src_pos = d.params.src_pos; |
| <span class="kw">let </span>in_buf = <span class="kw">match </span>callback.in_buf { |
| <span class="prelude-val">None </span>=> <span class="kw">return </span><span class="bool-val">true</span>, |
| <span class="prelude-val">Some</span>(in_buf) => in_buf, |
| }; |
| |
| <span class="kw">let </span><span class="kw-2">mut </span>lookahead_size = d.dict.lookahead_size; |
| <span class="kw">let </span><span class="kw-2">mut </span>lookahead_pos = d.dict.lookahead_pos; |
| <span class="kw">let </span><span class="kw-2">mut </span>saved_lit = d.params.saved_lit; |
| <span class="kw">let </span><span class="kw-2">mut </span>saved_match_dist = d.params.saved_match_dist; |
| <span class="kw">let </span><span class="kw-2">mut </span>saved_match_len = d.params.saved_match_len; |
| |
| <span class="kw">while </span>src_pos < in_buf.len() || (d.params.flush != TDEFLFlush::None && lookahead_size != <span class="number">0</span>) { |
| <span class="kw">let </span>src_buf_left = in_buf.len() - src_pos; |
| <span class="kw">let </span>num_bytes_to_process = cmp::min(src_buf_left, MAX_MATCH_LEN - lookahead_size <span class="kw">as </span>usize); |
| |
| <span class="kw">if </span>lookahead_size + d.dict.size >= usize::from(MIN_MATCH_LEN) - <span class="number">1 |
| </span>&& num_bytes_to_process > <span class="number">0 |
| </span>{ |
| <span class="kw">let </span>dictb = <span class="kw-2">&mut </span>d.dict.b; |
| |
| <span class="kw">let </span><span class="kw-2">mut </span>dst_pos = (lookahead_pos + lookahead_size <span class="kw">as </span>usize) & LZ_DICT_SIZE_MASK; |
| <span class="kw">let </span><span class="kw-2">mut </span>ins_pos = lookahead_pos + lookahead_size <span class="kw">as </span>usize - <span class="number">2</span>; |
| <span class="comment">// Start the hash value from the first two bytes |
| </span><span class="kw">let </span><span class="kw-2">mut </span>hash = update_hash( |
| u16::from(dictb.dict[(ins_pos & LZ_DICT_SIZE_MASK) <span class="kw">as </span>usize]), |
| dictb.dict[((ins_pos + <span class="number">1</span>) & LZ_DICT_SIZE_MASK) <span class="kw">as </span>usize], |
| ); |
| |
| lookahead_size += num_bytes_to_process; |
| |
| <span class="kw">for </span><span class="kw-2">&</span>c <span class="kw">in </span><span class="kw-2">&</span>in_buf[src_pos..src_pos + num_bytes_to_process] { |
| <span class="comment">// Add byte to input buffer. |
| </span>dictb.dict[dst_pos <span class="kw">as </span>usize] = c; |
| <span class="kw">if </span>(dst_pos <span class="kw">as </span>usize) < MAX_MATCH_LEN - <span class="number">1 </span>{ |
| dictb.dict[LZ_DICT_SIZE + dst_pos <span class="kw">as </span>usize] = c; |
| } |
| |
| <span class="comment">// Generate hash from the current byte, |
| </span>hash = update_hash(hash, c); |
| dictb.next[(ins_pos & LZ_DICT_SIZE_MASK) <span class="kw">as </span>usize] = dictb.hash[hash <span class="kw">as </span>usize]; |
| <span class="comment">// and insert it into the hash chain. |
| </span>dictb.hash[hash <span class="kw">as </span>usize] = ins_pos <span class="kw">as </span>u16; |
| dst_pos = (dst_pos + <span class="number">1</span>) & LZ_DICT_SIZE_MASK; |
| ins_pos += <span class="number">1</span>; |
| } |
| src_pos += num_bytes_to_process; |
| } <span class="kw">else </span>{ |
| <span class="kw">let </span>dictb = <span class="kw-2">&mut </span>d.dict.b; |
| <span class="kw">for </span><span class="kw-2">&</span>c <span class="kw">in </span><span class="kw-2">&</span>in_buf[src_pos..src_pos + num_bytes_to_process] { |
| <span class="kw">let </span>dst_pos = (lookahead_pos + lookahead_size) & LZ_DICT_SIZE_MASK; |
| dictb.dict[dst_pos <span class="kw">as </span>usize] = c; |
| <span class="kw">if </span>(dst_pos <span class="kw">as </span>usize) < MAX_MATCH_LEN - <span class="number">1 </span>{ |
| dictb.dict[LZ_DICT_SIZE + dst_pos <span class="kw">as </span>usize] = c; |
| } |
| |
| lookahead_size += <span class="number">1</span>; |
| <span class="kw">if </span>lookahead_size + d.dict.size >= MIN_MATCH_LEN.into() { |
| <span class="kw">let </span>ins_pos = lookahead_pos + lookahead_size - <span class="number">3</span>; |
| <span class="kw">let </span>hash = ((u32::from(dictb.dict[(ins_pos & LZ_DICT_SIZE_MASK) <span class="kw">as </span>usize]) |
| << (LZ_HASH_SHIFT * <span class="number">2</span>)) |
| ^ ((u32::from(dictb.dict[((ins_pos + <span class="number">1</span>) & LZ_DICT_SIZE_MASK) <span class="kw">as </span>usize]) |
| << LZ_HASH_SHIFT) |
| ^ u32::from(c))) |
| & (LZ_HASH_SIZE <span class="kw">as </span>u32 - <span class="number">1</span>); |
| |
| dictb.next[(ins_pos & LZ_DICT_SIZE_MASK) <span class="kw">as </span>usize] = dictb.hash[hash <span class="kw">as </span>usize]; |
| dictb.hash[hash <span class="kw">as </span>usize] = ins_pos <span class="kw">as </span>u16; |
| } |
| } |
| |
| src_pos += num_bytes_to_process; |
| } |
| |
| d.dict.size = cmp::min(LZ_DICT_SIZE - lookahead_size, d.dict.size); |
| <span class="kw">if </span>d.params.flush == TDEFLFlush::None && (lookahead_size <span class="kw">as </span>usize) < MAX_MATCH_LEN { |
| <span class="kw">break</span>; |
| } |
| |
| <span class="kw">let </span><span class="kw-2">mut </span>len_to_move = <span class="number">1</span>; |
| <span class="kw">let </span><span class="kw-2">mut </span>cur_match_dist = <span class="number">0</span>; |
| <span class="kw">let </span><span class="kw-2">mut </span>cur_match_len = <span class="kw">if </span>saved_match_len != <span class="number">0 </span>{ |
| saved_match_len |
| } <span class="kw">else </span>{ |
| u32::from(MIN_MATCH_LEN) - <span class="number">1 |
| </span>}; |
| <span class="kw">let </span>cur_pos = lookahead_pos & LZ_DICT_SIZE_MASK; |
| <span class="kw">if </span>d.params.flags & (TDEFL_RLE_MATCHES | TDEFL_FORCE_ALL_RAW_BLOCKS) != <span class="number">0 </span>{ |
| <span class="comment">// If TDEFL_RLE_MATCHES is set, we only look for repeating sequences of the current byte. |
| </span><span class="kw">if </span>d.dict.size != <span class="number">0 </span>&& d.params.flags & TDEFL_FORCE_ALL_RAW_BLOCKS == <span class="number">0 </span>{ |
| <span class="kw">let </span>c = d.dict.b.dict[((cur_pos.wrapping_sub(<span class="number">1</span>)) & LZ_DICT_SIZE_MASK) <span class="kw">as </span>usize]; |
| cur_match_len = d.dict.b.dict[cur_pos <span class="kw">as </span>usize..(cur_pos + lookahead_size) <span class="kw">as </span>usize] |
| .iter() |
| .take_while(|<span class="kw-2">&</span>x| <span class="kw-2">*</span>x == c) |
| .count() <span class="kw">as </span>u32; |
| <span class="kw">if </span>cur_match_len < MIN_MATCH_LEN.into() { |
| cur_match_len = <span class="number">0 |
| </span>} <span class="kw">else </span>{ |
| cur_match_dist = <span class="number">1 |
| </span>} |
| } |
| } <span class="kw">else </span>{ |
| <span class="comment">// Try to find a match for the bytes at the current position. |
| </span><span class="kw">let </span>dist_len = d.dict.find_match( |
| lookahead_pos, |
| d.dict.size, |
| lookahead_size <span class="kw">as </span>u32, |
| cur_match_dist, |
| cur_match_len, |
| ); |
| cur_match_dist = dist_len.<span class="number">0</span>; |
| cur_match_len = dist_len.<span class="number">1</span>; |
| } |
| |
| <span class="kw">let </span>far_and_small = cur_match_len == MIN_MATCH_LEN.into() && cur_match_dist >= <span class="number">8 </span>* <span class="number">1024</span>; |
| <span class="kw">let </span>filter_small = d.params.flags & TDEFL_FILTER_MATCHES != <span class="number">0 </span>&& cur_match_len <= <span class="number">5</span>; |
| <span class="kw">if </span>far_and_small || filter_small || cur_pos == cur_match_dist <span class="kw">as </span>usize { |
| cur_match_dist = <span class="number">0</span>; |
| cur_match_len = <span class="number">0</span>; |
| } |
| |
| <span class="kw">if </span>saved_match_len != <span class="number">0 </span>{ |
| <span class="kw">if </span>cur_match_len > saved_match_len { |
| record_literal(<span class="kw-2">&mut </span>d.huff, <span class="kw-2">&mut </span>d.lz, saved_lit); |
| <span class="kw">if </span>cur_match_len >= <span class="number">128 </span>{ |
| record_match(<span class="kw-2">&mut </span>d.huff, <span class="kw-2">&mut </span>d.lz, cur_match_len, cur_match_dist); |
| saved_match_len = <span class="number">0</span>; |
| len_to_move = cur_match_len <span class="kw">as </span>usize; |
| } <span class="kw">else </span>{ |
| saved_lit = d.dict.b.dict[cur_pos <span class="kw">as </span>usize]; |
| saved_match_dist = cur_match_dist; |
| saved_match_len = cur_match_len; |
| } |
| } <span class="kw">else </span>{ |
| record_match(<span class="kw-2">&mut </span>d.huff, <span class="kw-2">&mut </span>d.lz, saved_match_len, saved_match_dist); |
| len_to_move = (saved_match_len - <span class="number">1</span>) <span class="kw">as </span>usize; |
| saved_match_len = <span class="number">0</span>; |
| } |
| } <span class="kw">else if </span>cur_match_dist == <span class="number">0 </span>{ |
| record_literal( |
| <span class="kw-2">&mut </span>d.huff, |
| <span class="kw-2">&mut </span>d.lz, |
| d.dict.b.dict[cmp::min(cur_pos <span class="kw">as </span>usize, d.dict.b.dict.len() - <span class="number">1</span>)], |
| ); |
| } <span class="kw">else if </span>d.params.greedy_parsing |
| || (d.params.flags & TDEFL_RLE_MATCHES != <span class="number">0</span>) |
| || cur_match_len >= <span class="number">128 |
| </span>{ |
| <span class="comment">// If we are using lazy matching, check for matches at the next byte if the current |
| // match was shorter than 128 bytes. |
| </span>record_match(<span class="kw-2">&mut </span>d.huff, <span class="kw-2">&mut </span>d.lz, cur_match_len, cur_match_dist); |
| len_to_move = cur_match_len <span class="kw">as </span>usize; |
| } <span class="kw">else </span>{ |
| saved_lit = d.dict.b.dict[cmp::min(cur_pos <span class="kw">as </span>usize, d.dict.b.dict.len() - <span class="number">1</span>)]; |
| saved_match_dist = cur_match_dist; |
| saved_match_len = cur_match_len; |
| } |
| |
| lookahead_pos += len_to_move; |
| <span class="macro">assert!</span>(lookahead_size >= len_to_move); |
| lookahead_size -= len_to_move; |
| d.dict.size = cmp::min(d.dict.size + len_to_move, LZ_DICT_SIZE); |
| |
| <span class="kw">let </span>lz_buf_tight = d.lz.code_position > LZ_CODE_BUF_SIZE - <span class="number">8</span>; |
| <span class="kw">let </span>raw = d.params.flags & TDEFL_FORCE_ALL_RAW_BLOCKS != <span class="number">0</span>; |
| <span class="kw">let </span>fat = ((d.lz.code_position * <span class="number">115</span>) >> <span class="number">7</span>) >= d.lz.total_bytes <span class="kw">as </span>usize; |
| <span class="kw">let </span>fat_or_raw = (d.lz.total_bytes > <span class="number">31 </span>* <span class="number">1024</span>) && (fat || raw); |
| |
| <span class="kw">if </span>lz_buf_tight || fat_or_raw { |
| d.params.src_pos = src_pos; |
| <span class="comment">// These values are used in flush_block, so we need to write them back here. |
| </span>d.dict.lookahead_size = lookahead_size; |
| d.dict.lookahead_pos = lookahead_pos; |
| |
| <span class="kw">let </span>n = flush_block(d, callback, TDEFLFlush::None) |
| .unwrap_or(TDEFLStatus::PutBufFailed <span class="kw">as </span>i32); |
| <span class="kw">if </span>n != <span class="number">0 </span>{ |
| d.params.saved_lit = saved_lit; |
| d.params.saved_match_dist = saved_match_dist; |
| d.params.saved_match_len = saved_match_len; |
| <span class="kw">return </span>n > <span class="number">0</span>; |
| } |
| } |
| } |
| |
| d.params.src_pos = src_pos; |
| d.dict.lookahead_size = lookahead_size; |
| d.dict.lookahead_pos = lookahead_pos; |
| d.params.saved_lit = saved_lit; |
| d.params.saved_match_dist = saved_match_dist; |
| d.params.saved_match_len = saved_match_len; |
| <span class="bool-val">true |
| </span>} |
| |
| <span class="kw">const </span>COMP_FAST_LOOKAHEAD_SIZE: usize = <span class="number">4096</span>; |
| |
| <span class="kw">fn </span>compress_fast(d: <span class="kw-2">&mut </span>CompressorOxide, callback: <span class="kw-2">&mut </span>CallbackOxide) -> bool { |
| <span class="kw">let </span><span class="kw-2">mut </span>src_pos = d.params.src_pos; |
| <span class="kw">let </span><span class="kw-2">mut </span>lookahead_size = d.dict.lookahead_size; |
| <span class="kw">let </span><span class="kw-2">mut </span>lookahead_pos = d.dict.lookahead_pos; |
| |
| <span class="kw">let </span><span class="kw-2">mut </span>cur_pos = lookahead_pos & LZ_DICT_SIZE_MASK; |
| <span class="kw">let </span>in_buf = <span class="kw">match </span>callback.in_buf { |
| <span class="prelude-val">None </span>=> <span class="kw">return </span><span class="bool-val">true</span>, |
| <span class="prelude-val">Some</span>(in_buf) => in_buf, |
| }; |
| |
| <span class="macro">debug_assert!</span>(d.lz.code_position < LZ_CODE_BUF_SIZE - <span class="number">2</span>); |
| |
| <span class="kw">while </span>src_pos < in_buf.len() || (d.params.flush != TDEFLFlush::None && lookahead_size > <span class="number">0</span>) { |
| <span class="kw">let </span><span class="kw-2">mut </span>dst_pos = ((lookahead_pos + lookahead_size) & LZ_DICT_SIZE_MASK) <span class="kw">as </span>usize; |
| <span class="kw">let </span><span class="kw-2">mut </span>num_bytes_to_process = cmp::min( |
| in_buf.len() - src_pos, |
| (COMP_FAST_LOOKAHEAD_SIZE - lookahead_size) <span class="kw">as </span>usize, |
| ); |
| lookahead_size += num_bytes_to_process; |
| |
| <span class="kw">while </span>num_bytes_to_process != <span class="number">0 </span>{ |
| <span class="kw">let </span>n = cmp::min(LZ_DICT_SIZE - dst_pos, num_bytes_to_process); |
| d.dict.b.dict[dst_pos..dst_pos + n].copy_from_slice(<span class="kw-2">&</span>in_buf[src_pos..src_pos + n]); |
| |
| <span class="kw">if </span>dst_pos < MAX_MATCH_LEN - <span class="number">1 </span>{ |
| <span class="kw">let </span>m = cmp::min(n, MAX_MATCH_LEN - <span class="number">1 </span>- dst_pos); |
| d.dict.b.dict[dst_pos + LZ_DICT_SIZE..dst_pos + LZ_DICT_SIZE + m] |
| .copy_from_slice(<span class="kw-2">&</span>in_buf[src_pos..src_pos + m]); |
| } |
| |
| src_pos += n; |
| dst_pos = (dst_pos + n) & LZ_DICT_SIZE_MASK <span class="kw">as </span>usize; |
| num_bytes_to_process -= n; |
| } |
| |
| d.dict.size = cmp::min(LZ_DICT_SIZE - lookahead_size, d.dict.size); |
| <span class="kw">if </span>d.params.flush == TDEFLFlush::None && lookahead_size < COMP_FAST_LOOKAHEAD_SIZE { |
| <span class="kw">break</span>; |
| } |
| |
| <span class="kw">while </span>lookahead_size >= <span class="number">4 </span>{ |
| <span class="kw">let </span><span class="kw-2">mut </span>cur_match_len = <span class="number">1</span>; |
| |
| <span class="kw">let </span>first_trigram = d.dict.read_unaligned_u32(cur_pos) & <span class="number">0xFF_FFFF</span>; |
| |
| <span class="kw">let </span>hash = (first_trigram ^ (first_trigram >> (<span class="number">24 </span>- (LZ_HASH_BITS - <span class="number">8</span>)))) |
| & LEVEL1_HASH_SIZE_MASK; |
| |
| <span class="kw">let </span><span class="kw-2">mut </span>probe_pos = usize::from(d.dict.b.hash[hash <span class="kw">as </span>usize]); |
| d.dict.b.hash[hash <span class="kw">as </span>usize] = lookahead_pos <span class="kw">as </span>u16; |
| |
| <span class="kw">let </span><span class="kw-2">mut </span>cur_match_dist = (lookahead_pos - probe_pos <span class="kw">as </span>usize) <span class="kw">as </span>u16; |
| <span class="kw">if </span>cur_match_dist <span class="kw">as </span>usize <= d.dict.size { |
| probe_pos &= LZ_DICT_SIZE_MASK; |
| |
| <span class="kw">let </span>trigram = d.dict.read_unaligned_u32(probe_pos) & <span class="number">0xFF_FFFF</span>; |
| |
| <span class="kw">if </span>first_trigram == trigram { |
| <span class="comment">// Trigram was tested, so we can start with "+ 3" displacement. |
| </span><span class="kw">let </span><span class="kw-2">mut </span>p = cur_pos + <span class="number">3</span>; |
| <span class="kw">let </span><span class="kw-2">mut </span>q = probe_pos + <span class="number">3</span>; |
| cur_match_len = (|| { |
| <span class="kw">for _ in </span><span class="number">0</span>..<span class="number">32 </span>{ |
| <span class="kw">let </span>p_data: u64 = d.dict.read_unaligned_u64(p); |
| <span class="kw">let </span>q_data: u64 = d.dict.read_unaligned_u64(q); |
| <span class="kw">let </span>xor_data = p_data ^ q_data; |
| <span class="kw">if </span>xor_data == <span class="number">0 </span>{ |
| p += <span class="number">8</span>; |
| q += <span class="number">8</span>; |
| } <span class="kw">else </span>{ |
| <span class="kw">let </span>trailing = xor_data.trailing_zeros(); |
| <span class="kw">return </span>p <span class="kw">as </span>u32 - cur_pos <span class="kw">as </span>u32 + (trailing >> <span class="number">3</span>); |
| } |
| } |
| |
| <span class="kw">if </span>cur_match_dist == <span class="number">0 </span>{ |
| <span class="number">0 |
| </span>} <span class="kw">else </span>{ |
| MAX_MATCH_LEN <span class="kw">as </span>u32 |
| } |
| })(); |
| |
| <span class="kw">if </span>cur_match_len < MIN_MATCH_LEN.into() |
| || (cur_match_len == MIN_MATCH_LEN.into() && cur_match_dist >= <span class="number">8 </span>* <span class="number">1024</span>) |
| { |
| <span class="kw">let </span>lit = first_trigram <span class="kw">as </span>u8; |
| cur_match_len = <span class="number">1</span>; |
| d.lz.write_code(lit); |
| <span class="kw-2">*</span>d.lz.get_flag() >>= <span class="number">1</span>; |
| d.huff.count[<span class="number">0</span>][lit <span class="kw">as </span>usize] += <span class="number">1</span>; |
| } <span class="kw">else </span>{ |
| <span class="comment">// Limit the match to the length of the lookahead so we don't create a match |
| // that ends after the end of the input data. |
| </span>cur_match_len = cmp::min(cur_match_len, lookahead_size <span class="kw">as </span>u32); |
| <span class="macro">debug_assert!</span>(cur_match_len >= MIN_MATCH_LEN.into()); |
| <span class="macro">debug_assert!</span>(cur_match_dist >= <span class="number">1</span>); |
| <span class="macro">debug_assert!</span>(cur_match_dist <span class="kw">as </span>usize <= LZ_DICT_SIZE); |
| cur_match_dist -= <span class="number">1</span>; |
| |
| d.lz.write_code((cur_match_len - u32::from(MIN_MATCH_LEN)) <span class="kw">as </span>u8); |
| d.lz.write_code(cur_match_dist <span class="kw">as </span>u8); |
| d.lz.write_code((cur_match_dist >> <span class="number">8</span>) <span class="kw">as </span>u8); |
| |
| <span class="kw-2">*</span>d.lz.get_flag() >>= <span class="number">1</span>; |
| <span class="kw-2">*</span>d.lz.get_flag() |= <span class="number">0x80</span>; |
| <span class="kw">if </span>cur_match_dist < <span class="number">512 </span>{ |
| d.huff.count[<span class="number">1</span>][SMALL_DIST_SYM[cur_match_dist <span class="kw">as </span>usize] <span class="kw">as </span>usize] += <span class="number">1</span>; |
| } <span class="kw">else </span>{ |
| d.huff.count[<span class="number">1</span>] |
| [LARGE_DIST_SYM[(cur_match_dist >> <span class="number">8</span>) <span class="kw">as </span>usize] <span class="kw">as </span>usize] += <span class="number">1</span>; |
| } |
| |
| d.huff.count[<span class="number">0</span>][LEN_SYM[(cur_match_len - u32::from(MIN_MATCH_LEN)) <span class="kw">as </span>usize] |
| <span class="kw">as </span>usize] += <span class="number">1</span>; |
| } |
| } <span class="kw">else </span>{ |
| d.lz.write_code(first_trigram <span class="kw">as </span>u8); |
| <span class="kw-2">*</span>d.lz.get_flag() >>= <span class="number">1</span>; |
| d.huff.count[<span class="number">0</span>][first_trigram <span class="kw">as </span>u8 <span class="kw">as </span>usize] += <span class="number">1</span>; |
| } |
| |
| d.lz.consume_flag(); |
| d.lz.total_bytes += cur_match_len; |
| lookahead_pos += cur_match_len <span class="kw">as </span>usize; |
| d.dict.size = cmp::min(d.dict.size + cur_match_len <span class="kw">as </span>usize, LZ_DICT_SIZE); |
| cur_pos = (cur_pos + cur_match_len <span class="kw">as </span>usize) & LZ_DICT_SIZE_MASK; |
| lookahead_size -= cur_match_len <span class="kw">as </span>usize; |
| |
| <span class="kw">if </span>d.lz.code_position > LZ_CODE_BUF_SIZE - <span class="number">8 </span>{ |
| <span class="comment">// These values are used in flush_block, so we need to write them back here. |
| </span>d.dict.lookahead_size = lookahead_size; |
| d.dict.lookahead_pos = lookahead_pos; |
| |
| <span class="kw">let </span>n = <span class="kw">match </span>flush_block(d, callback, TDEFLFlush::None) { |
| <span class="prelude-val">Err</span>(<span class="kw">_</span>) => { |
| d.params.src_pos = src_pos; |
| d.params.prev_return_status = TDEFLStatus::PutBufFailed; |
| <span class="kw">return </span><span class="bool-val">false</span>; |
| } |
| <span class="prelude-val">Ok</span>(status) => status, |
| }; |
| <span class="kw">if </span>n != <span class="number">0 </span>{ |
| d.params.src_pos = src_pos; |
| <span class="kw">return </span>n > <span class="number">0</span>; |
| } |
| <span class="macro">debug_assert!</span>(d.lz.code_position < LZ_CODE_BUF_SIZE - <span class="number">2</span>); |
| |
| lookahead_size = d.dict.lookahead_size; |
| lookahead_pos = d.dict.lookahead_pos; |
| } |
| } |
| } |
| |
| <span class="kw">while </span>lookahead_size != <span class="number">0 </span>{ |
| <span class="kw">let </span>lit = d.dict.b.dict[cur_pos <span class="kw">as </span>usize]; |
| d.lz.total_bytes += <span class="number">1</span>; |
| d.lz.write_code(lit); |
| <span class="kw-2">*</span>d.lz.get_flag() >>= <span class="number">1</span>; |
| d.lz.consume_flag(); |
| |
| d.huff.count[<span class="number">0</span>][lit <span class="kw">as </span>usize] += <span class="number">1</span>; |
| lookahead_pos += <span class="number">1</span>; |
| d.dict.size = cmp::min(d.dict.size + <span class="number">1</span>, LZ_DICT_SIZE); |
| cur_pos = (cur_pos + <span class="number">1</span>) & LZ_DICT_SIZE_MASK; |
| lookahead_size -= <span class="number">1</span>; |
| |
| <span class="kw">if </span>d.lz.code_position > LZ_CODE_BUF_SIZE - <span class="number">8 </span>{ |
| <span class="comment">// These values are used in flush_block, so we need to write them back here. |
| </span>d.dict.lookahead_size = lookahead_size; |
| d.dict.lookahead_pos = lookahead_pos; |
| |
| <span class="kw">let </span>n = <span class="kw">match </span>flush_block(d, callback, TDEFLFlush::None) { |
| <span class="prelude-val">Err</span>(<span class="kw">_</span>) => { |
| d.params.prev_return_status = TDEFLStatus::PutBufFailed; |
| d.params.src_pos = src_pos; |
| <span class="kw">return </span><span class="bool-val">false</span>; |
| } |
| <span class="prelude-val">Ok</span>(status) => status, |
| }; |
| <span class="kw">if </span>n != <span class="number">0 </span>{ |
| d.params.src_pos = src_pos; |
| <span class="kw">return </span>n > <span class="number">0</span>; |
| } |
| |
| lookahead_size = d.dict.lookahead_size; |
| lookahead_pos = d.dict.lookahead_pos; |
| } |
| } |
| } |
| |
| d.params.src_pos = src_pos; |
| d.dict.lookahead_size = lookahead_size; |
| d.dict.lookahead_pos = lookahead_pos; |
| <span class="bool-val">true |
| </span>} |
| |
| <span class="kw">fn </span>flush_output_buffer(c: <span class="kw-2">&mut </span>CallbackOxide, p: <span class="kw-2">&mut </span>ParamsOxide) -> (TDEFLStatus, usize, usize) { |
| <span class="kw">let </span><span class="kw-2">mut </span>res = (TDEFLStatus::Okay, p.src_pos, <span class="number">0</span>); |
| <span class="kw">if let </span>CallbackOut::Buf(<span class="kw-2">ref mut </span>cb) = c.out { |
| <span class="kw">let </span>n = cmp::min(cb.out_buf.len() - p.out_buf_ofs, p.flush_remaining <span class="kw">as </span>usize); |
| <span class="kw">if </span>n != <span class="number">0 </span>{ |
| (<span class="kw-2">&mut </span>cb.out_buf[p.out_buf_ofs..p.out_buf_ofs + n]) |
| .copy_from_slice(<span class="kw-2">&</span>p.local_buf.b[p.flush_ofs <span class="kw">as </span>usize..p.flush_ofs <span class="kw">as </span>usize + n]); |
| } |
| p.flush_ofs += n <span class="kw">as </span>u32; |
| p.flush_remaining -= n <span class="kw">as </span>u32; |
| p.out_buf_ofs += n; |
| res.<span class="number">2 </span>= p.out_buf_ofs; |
| } |
| |
| <span class="kw">if </span>p.finished && p.flush_remaining == <span class="number">0 </span>{ |
| res.<span class="number">0 </span>= TDEFLStatus::Done |
| } |
| res |
| } |
| |
| <span class="doccomment">/// Main compression function. Tries to compress as much as possible from `in_buf` and |
| /// puts compressed output into `out_buf`. |
| /// |
| /// The value of `flush` determines if the compressor should attempt to flush all output |
| /// and alternatively try to finish the stream. |
| /// |
| /// Use [`TDEFLFlush::Finish`] on the final call to signal that the stream is finishing. |
| /// |
| /// Note that this function does not keep track of whether a flush marker has been output, so |
| /// if called using [`TDEFLFlush::Sync`], the caller needs to ensure there is enough space in the |
| /// output buffer if they want to avoid repeated flush markers. |
| /// See #105 for details. |
| /// |
| /// # Returns |
| /// Returns a tuple containing the current status of the compressor, the current position |
| /// in the input buffer and the current position in the output buffer. |
| </span><span class="kw">pub fn </span>compress( |
| d: <span class="kw-2">&mut </span>CompressorOxide, |
| in_buf: <span class="kw-2">&</span>[u8], |
| out_buf: <span class="kw-2">&mut </span>[u8], |
| flush: TDEFLFlush, |
| ) -> (TDEFLStatus, usize, usize) { |
| compress_inner( |
| d, |
| <span class="kw-2">&mut </span>CallbackOxide::new_callback_buf(in_buf, out_buf), |
| flush, |
| ) |
| } |
| |
| <span class="doccomment">/// Main compression function. Callbacks output. |
| /// |
| /// # Returns |
| /// Returns a tuple containing the current status of the compressor, the current position |
| /// in the input buffer. |
| /// |
| /// The caller is responsible for ensuring the `CallbackFunc` struct will not cause undefined |
| /// behaviour. |
| </span><span class="kw">pub fn </span>compress_to_output( |
| d: <span class="kw-2">&mut </span>CompressorOxide, |
| in_buf: <span class="kw-2">&</span>[u8], |
| flush: TDEFLFlush, |
| <span class="kw-2">mut </span>callback_func: <span class="kw">impl </span>FnMut(<span class="kw-2">&</span>[u8]) -> bool, |
| ) -> (TDEFLStatus, usize) { |
| <span class="kw">let </span>res = compress_inner( |
| d, |
| <span class="kw-2">&mut </span>CallbackOxide::new_callback_func( |
| in_buf, |
| CallbackFunc { |
| put_buf_func: <span class="kw-2">&mut </span>callback_func, |
| }, |
| ), |
| flush, |
| ); |
| |
| (res.<span class="number">0</span>, res.<span class="number">1</span>) |
| } |
| |
| <span class="kw">fn </span>compress_inner( |
| d: <span class="kw-2">&mut </span>CompressorOxide, |
| callback: <span class="kw-2">&mut </span>CallbackOxide, |
| flush: TDEFLFlush, |
| ) -> (TDEFLStatus, usize, usize) { |
| d.params.out_buf_ofs = <span class="number">0</span>; |
| d.params.src_pos = <span class="number">0</span>; |
| |
| <span class="kw">let </span>prev_ok = d.params.prev_return_status == TDEFLStatus::Okay; |
| <span class="kw">let </span>flush_finish_once = d.params.flush != TDEFLFlush::Finish || flush == TDEFLFlush::Finish; |
| |
| d.params.flush = flush; |
| <span class="kw">if </span>!prev_ok || !flush_finish_once { |
| d.params.prev_return_status = TDEFLStatus::BadParam; |
| <span class="kw">return </span>(d.params.prev_return_status, <span class="number">0</span>, <span class="number">0</span>); |
| } |
| |
| <span class="kw">if </span>d.params.flush_remaining != <span class="number">0 </span>|| d.params.finished { |
| <span class="kw">let </span>res = flush_output_buffer(callback, <span class="kw-2">&mut </span>d.params); |
| d.params.prev_return_status = res.<span class="number">0</span>; |
| <span class="kw">return </span>res; |
| } |
| |
| <span class="kw">let </span>one_probe = d.params.flags & MAX_PROBES_MASK <span class="kw">as </span>u32 == <span class="number">1</span>; |
| <span class="kw">let </span>greedy = d.params.flags & TDEFL_GREEDY_PARSING_FLAG != <span class="number">0</span>; |
| <span class="kw">let </span>filter_or_rle_or_raw = d.params.flags |
| & (TDEFL_FILTER_MATCHES | TDEFL_FORCE_ALL_RAW_BLOCKS | TDEFL_RLE_MATCHES) |
| != <span class="number">0</span>; |
| |
| <span class="kw">let </span>compress_success = <span class="kw">if </span>one_probe && greedy && !filter_or_rle_or_raw { |
| compress_fast(d, callback) |
| } <span class="kw">else </span>{ |
| compress_normal(d, callback) |
| }; |
| |
| <span class="kw">if </span>!compress_success { |
| <span class="kw">return </span>( |
| d.params.prev_return_status, |
| d.params.src_pos, |
| d.params.out_buf_ofs, |
| ); |
| } |
| |
| <span class="kw">if let </span><span class="prelude-val">Some</span>(in_buf) = callback.in_buf { |
| <span class="kw">if </span>d.params.flags & (TDEFL_WRITE_ZLIB_HEADER | TDEFL_COMPUTE_ADLER32) != <span class="number">0 </span>{ |
| d.params.adler32 = update_adler32(d.params.adler32, <span class="kw-2">&</span>in_buf[..d.params.src_pos]); |
| } |
| } |
| |
| <span class="kw">let </span>flush_none = d.params.flush == TDEFLFlush::None; |
| <span class="kw">let </span>in_left = callback.in_buf.map_or(<span class="number">0</span>, |buf| buf.len()) - d.params.src_pos; |
| <span class="kw">let </span>remaining = in_left != <span class="number">0 </span>|| d.params.flush_remaining != <span class="number">0</span>; |
| <span class="kw">if </span>!flush_none && d.dict.lookahead_size == <span class="number">0 </span>&& !remaining { |
| <span class="kw">let </span>flush = d.params.flush; |
| <span class="kw">match </span>flush_block(d, callback, flush) { |
| <span class="prelude-val">Err</span>(<span class="kw">_</span>) => { |
| d.params.prev_return_status = TDEFLStatus::PutBufFailed; |
| <span class="kw">return </span>( |
| d.params.prev_return_status, |
| d.params.src_pos, |
| d.params.out_buf_ofs, |
| ); |
| } |
| <span class="prelude-val">Ok</span>(x) <span class="kw">if </span>x < <span class="number">0 </span>=> { |
| <span class="kw">return </span>( |
| d.params.prev_return_status, |
| d.params.src_pos, |
| d.params.out_buf_ofs, |
| ) |
| } |
| <span class="kw">_ </span>=> { |
| d.params.finished = d.params.flush == TDEFLFlush::Finish; |
| <span class="kw">if </span>d.params.flush == TDEFLFlush::Full { |
| memset(<span class="kw-2">&mut </span>d.dict.b.hash[..], <span class="number">0</span>); |
| memset(<span class="kw-2">&mut </span>d.dict.b.next[..], <span class="number">0</span>); |
| d.dict.size = <span class="number">0</span>; |
| } |
| } |
| } |
| } |
| |
| <span class="kw">let </span>res = flush_output_buffer(callback, <span class="kw-2">&mut </span>d.params); |
| d.params.prev_return_status = res.<span class="number">0</span>; |
| |
| res |
| } |
| |
| <span class="doccomment">/// Create a set of compression flags using parameters used by zlib and other compressors. |
| /// Mainly intended for use with transition from c libraries as it deals with raw integers. |
| /// |
| /// # Parameters |
| /// `level` determines compression level. Clamped to maximum of 10. Negative values result in |
| /// `CompressionLevel::DefaultLevel`. |
| /// `window_bits`: Above 0, wraps the stream in a zlib wrapper, 0 or negative for a raw deflate |
| /// stream. |
| /// `strategy`: Sets the strategy if this conforms to any of the values in `CompressionStrategy`. |
| /// |
| /// # Notes |
| /// This function may be removed or moved to the `miniz_oxide_c_api` in the future. |
| </span><span class="kw">pub fn </span>create_comp_flags_from_zip_params(level: i32, window_bits: i32, strategy: i32) -> u32 { |
| <span class="kw">let </span>num_probes = (<span class="kw">if </span>level >= <span class="number">0 </span>{ |
| cmp::min(<span class="number">10</span>, level) |
| } <span class="kw">else </span>{ |
| CompressionLevel::DefaultLevel <span class="kw">as </span>i32 |
| }) <span class="kw">as </span>usize; |
| <span class="kw">let </span>greedy = <span class="kw">if </span>level <= <span class="number">3 </span>{ |
| TDEFL_GREEDY_PARSING_FLAG |
| } <span class="kw">else </span>{ |
| <span class="number">0 |
| </span>}; |
| <span class="kw">let </span><span class="kw-2">mut </span>comp_flags = NUM_PROBES[num_probes] | greedy; |
| |
| <span class="kw">if </span>window_bits > <span class="number">0 </span>{ |
| comp_flags |= TDEFL_WRITE_ZLIB_HEADER; |
| } |
| |
| <span class="kw">if </span>level == <span class="number">0 </span>{ |
| comp_flags |= TDEFL_FORCE_ALL_RAW_BLOCKS; |
| } <span class="kw">else if </span>strategy == CompressionStrategy::Filtered <span class="kw">as </span>i32 { |
| comp_flags |= TDEFL_FILTER_MATCHES; |
| } <span class="kw">else if </span>strategy == CompressionStrategy::HuffmanOnly <span class="kw">as </span>i32 { |
| comp_flags &= !MAX_PROBES_MASK <span class="kw">as </span>u32; |
| } <span class="kw">else if </span>strategy == CompressionStrategy::Fixed <span class="kw">as </span>i32 { |
| comp_flags |= TDEFL_FORCE_ALL_STATIC_BLOCKS; |
| } <span class="kw">else if </span>strategy == CompressionStrategy::RLE <span class="kw">as </span>i32 { |
| comp_flags |= TDEFL_RLE_MATCHES; |
| } |
| |
| comp_flags |
| } |
| |
| <span class="attribute">#[cfg(test)] |
| </span><span class="kw">mod </span>test { |
| <span class="kw">use super</span>::{ |
| compress_to_output, create_comp_flags_from_zip_params, read_u16_le, write_u16_le, |
| CompressionStrategy, CompressorOxide, TDEFLFlush, TDEFLStatus, DEFAULT_FLAGS, |
| MZ_DEFAULT_WINDOW_BITS, |
| }; |
| <span class="kw">use </span><span class="kw">crate</span>::inflate::decompress_to_vec; |
| <span class="kw">use </span>alloc::vec; |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>u16_to_slice() { |
| <span class="kw">let </span><span class="kw-2">mut </span>slice = [<span class="number">0</span>, <span class="number">0</span>]; |
| write_u16_le(<span class="number">2000</span>, <span class="kw-2">&mut </span>slice, <span class="number">0</span>); |
| <span class="macro">assert_eq!</span>(slice, [<span class="number">208</span>, <span class="number">7</span>]); |
| } |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>u16_from_slice() { |
| <span class="kw">let </span><span class="kw-2">mut </span>slice = [<span class="number">208</span>, <span class="number">7</span>]; |
| <span class="macro">assert_eq!</span>(read_u16_le(<span class="kw-2">&mut </span>slice, <span class="number">0</span>), <span class="number">2000</span>); |
| } |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>compress_output() { |
| <span class="macro">assert_eq!</span>( |
| DEFAULT_FLAGS, |
| create_comp_flags_from_zip_params( |
| <span class="number">4</span>, |
| MZ_DEFAULT_WINDOW_BITS, |
| CompressionStrategy::Default <span class="kw">as </span>i32 |
| ) |
| ); |
| |
| <span class="kw">let </span>slice = [ |
| <span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>, <span class="number">4</span>, <span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>, <span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>, <span class="number">1</span>, <span class="number">2</span>, <span class="number">6</span>, <span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>, <span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>, <span class="number">2</span>, <span class="number">3</span>, <span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>, |
| ]; |
| <span class="kw">let </span><span class="kw-2">mut </span>encoded = <span class="macro">vec!</span>[]; |
| <span class="kw">let </span>flags = create_comp_flags_from_zip_params(<span class="number">6</span>, <span class="number">0</span>, <span class="number">0</span>); |
| <span class="kw">let </span><span class="kw-2">mut </span>d = CompressorOxide::new(flags); |
| <span class="kw">let </span>(status, in_consumed) = |
| compress_to_output(<span class="kw-2">&mut </span>d, <span class="kw-2">&</span>slice, TDEFLFlush::Finish, |out: <span class="kw-2">&</span>[u8]| { |
| encoded.extend_from_slice(out); |
| <span class="bool-val">true |
| </span>}); |
| |
| <span class="macro">assert_eq!</span>(status, TDEFLStatus::Done); |
| <span class="macro">assert_eq!</span>(in_consumed, slice.len()); |
| |
| <span class="kw">let </span>decoded = decompress_to_vec(<span class="kw-2">&</span>encoded[..]).unwrap(); |
| <span class="macro">assert_eq!</span>(<span class="kw-2">&</span>decoded[..], <span class="kw-2">&</span>slice[..]); |
| } |
| |
| <span class="attribute">#[test] |
| </span><span class="doccomment">/// Check fast compress mode |
| </span><span class="kw">fn </span>compress_fast() { |
| <span class="kw">let </span>slice = [ |
| <span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>, <span class="number">4</span>, <span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>, <span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>, <span class="number">1</span>, <span class="number">2</span>, <span class="number">6</span>, <span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>, <span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>, <span class="number">2</span>, <span class="number">3</span>, <span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>, |
| ]; |
| <span class="kw">let </span><span class="kw-2">mut </span>encoded = <span class="macro">vec!</span>[]; |
| <span class="kw">let </span>flags = create_comp_flags_from_zip_params(<span class="number">1</span>, <span class="number">0</span>, <span class="number">0</span>); |
| <span class="kw">let </span><span class="kw-2">mut </span>d = CompressorOxide::new(flags); |
| <span class="kw">let </span>(status, in_consumed) = |
| compress_to_output(<span class="kw-2">&mut </span>d, <span class="kw-2">&</span>slice, TDEFLFlush::Finish, |out: <span class="kw-2">&</span>[u8]| { |
| encoded.extend_from_slice(out); |
| <span class="bool-val">true |
| </span>}); |
| |
| <span class="macro">assert_eq!</span>(status, TDEFLStatus::Done); |
| <span class="macro">assert_eq!</span>(in_consumed, slice.len()); |
| |
| <span class="comment">// Needs to be altered if algorithm improves. |
| </span><span class="macro">assert_eq!</span>( |
| <span class="kw-2">&</span>encoded[..], |
| [<span class="number">99</span>, <span class="number">100</span>, <span class="number">98</span>, <span class="number">102</span>, <span class="number">1</span>, <span class="number">98</span>, <span class="number">48</span>, <span class="number">98</span>, <span class="number">3</span>, <span class="number">147</span>, <span class="number">204</span>, <span class="number">76</span>, <span class="number">204</span>, <span class="number">140</span>, <span class="number">76</span>, <span class="number">204</span>, <span class="number">0</span>] |
| ); |
| |
| <span class="kw">let </span>decoded = decompress_to_vec(<span class="kw-2">&</span>encoded[..]).unwrap(); |
| <span class="macro">assert_eq!</span>(<span class="kw-2">&</span>decoded[..], <span class="kw-2">&</span>slice[..]); |
| } |
| } |
| </code></pre></div> |
| </section></div></main><div id="rustdoc-vars" data-root-path="../../../" data-current-crate="miniz_oxide" data-themes="ayu,dark,light" data-resource-suffix="" data-rustdoc-version="1.66.0-nightly (5c8bff74b 2022-10-21)" ></div></body></html> |
