mrkad
/
php-qrcode
mirror of https://github.com/chillerlan/php-qrcode.git


			
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    <article class="phpdocumentor-element -interface">
        <h2 class="phpdocumentor-content__title">
    LuminanceSourceInterface
                <div class="phpdocumentor-element__package">
            in
            <ul class="phpdocumentor-breadcrumbs">
                                    <li><a href="packages/Application.html">Application</a></li>
                            </ul>
        </div>
    </h2>

        <aside class="phpdocumentor-element-found-in">
    <abbr class="phpdocumentor-element-found-in__file" title="src/Decoder/LuminanceSourceInterface.php"><a href="files/src-decoder-luminancesourceinterface.html"><abbr title="src/Decoder/LuminanceSourceInterface.php">LuminanceSourceInterface.php</abbr></a></abbr>
    :
    <span class="phpdocumentor-element-found-in__line">15</span>

    </aside>

        
<h3 id="toc">
    Table of Contents
    <a href="#toc" class="headerlink"><i class="fas fa-link"></i></a>
</h3>

<dl class="phpdocumentor-table-of-contents">
                        <dt class="phpdocumentor-table-of-contents__entry -method -public">
    <a href="classes/chillerlan-QRCode-Decoder-LuminanceSourceInterface.html#method_fromBlob">fromBlob()</a>
    <span>
                                &nbsp;: self    </span>
</dt>
<dd>Creates a LuminanceSource instance from the given data blob</dd>

            <dt class="phpdocumentor-table-of-contents__entry -method -public">
    <a href="classes/chillerlan-QRCode-Decoder-LuminanceSourceInterface.html#method_fromFile">fromFile()</a>
    <span>
                                &nbsp;: self    </span>
</dt>
<dd>Creates a LuminanceSource instance from the given file</dd>

            <dt class="phpdocumentor-table-of-contents__entry -method -public">
    <a href="classes/chillerlan-QRCode-Decoder-LuminanceSourceInterface.html#method_getHeight">getHeight()</a>
    <span>
                                &nbsp;: int    </span>
</dt>
<dd></dd>

            <dt class="phpdocumentor-table-of-contents__entry -method -public">
    <a href="classes/chillerlan-QRCode-Decoder-LuminanceSourceInterface.html#method_getLuminances">getLuminances()</a>
    <span>
                                &nbsp;: array&lt;string|int, mixed&gt;    </span>
</dt>
<dd>Fetches luminance data for the underlying bitmap. Values should be fetched using:
`int luminance = array[y * width + x] &amp; 0xff`</dd>

            <dt class="phpdocumentor-table-of-contents__entry -method -public">
    <a href="classes/chillerlan-QRCode-Decoder-LuminanceSourceInterface.html#method_getRow">getRow()</a>
    <span>
                                &nbsp;: array&lt;string|int, mixed&gt;    </span>
</dt>
<dd>Fetches one row of luminance data from the underlying platform&#039;s bitmap. Values range from
0 (black) to 255 (white). Because Java does not have an unsigned byte type, callers will have
to bitwise and with 0xff for each value. It is preferable for implementations of this method
to only fetch this row rather than the whole image, since no 2D Readers may be installed and
getLuminances() may never be called.</dd>

            <dt class="phpdocumentor-table-of-contents__entry -method -public">
    <a href="classes/chillerlan-QRCode-Decoder-LuminanceSourceInterface.html#method_getWidth">getWidth()</a>
    <span>
                                &nbsp;: int    </span>
</dt>
<dd></dd>

        </dl>


            <section class="phpdocumentor-methods">
        <h3 class="phpdocumentor-elements__header" id="methods">
            Methods
            <a href="classes/chillerlan-QRCode-Decoder-LuminanceSourceInterface.html#methods" class="headerlink"><i class="fas fa-link"></i></a>
        </h3>
                    <article
        class="phpdocumentor-element
            -method
            -public
                                    -static                    "
>
    <h4 class="phpdocumentor-element__name" id="method_fromBlob">
        fromBlob()
        <a href="classes/chillerlan-QRCode-Decoder-LuminanceSourceInterface.html#method_fromBlob" class="headerlink"><i class="fas fa-link"></i></a>
    </h4>
    <aside class="phpdocumentor-element-found-in">
    <abbr class="phpdocumentor-element-found-in__file" title="src/Decoder/LuminanceSourceInterface.php"><a href="files/src-decoder-luminancesourceinterface.html"><abbr title="src/Decoder/LuminanceSourceInterface.php">LuminanceSourceInterface.php</abbr></a></abbr>
    :
    <span class="phpdocumentor-element-found-in__line">59</span>

    </aside>

        <p class="phpdocumentor-summary">Creates a LuminanceSource instance from the given data blob</p>

    <code class="phpdocumentor-code phpdocumentor-signature ">
    <span class="phpdocumentor-signature__visibility">public</span>
            <span class="phpdocumentor-signature__static">static</span>        <span class="phpdocumentor-signature__name">fromBlob</span><span>(</span><span class="phpdocumentor-signature__argument"><span class="phpdocumentor-signature__argument__return-type">string&nbsp;</span><span class="phpdocumentor-signature__argument__name">$blob</span></span><span>)</span><span> : </span><span class="phpdocumentor-signature__response_type">self</span></code>

    
        <h5 class="phpdocumentor-argument-list__heading">Parameters</h5>
    <dl class="phpdocumentor-argument-list">
                    <dt class="phpdocumentor-argument-list__entry">
                <span class="phpdocumentor-signature__argument__name">$blob</span>
                : <span class="phpdocumentor-signature__argument__return-type">string</span>
                            </dt>
            <dd class="phpdocumentor-argument-list__definition">
                    <section class="phpdocumentor-description"></section>

            </dd>
            </dl>

    
        <h5 class="phpdocumentor-return-value__heading">Return values</h5>
    <span class="phpdocumentor-signature__response_type">self</span>
            &mdash;
        
    
</article>
                    <article
        class="phpdocumentor-element
            -method
            -public
                                    -static                    "
>
    <h4 class="phpdocumentor-element__name" id="method_fromFile">
        fromFile()
        <a href="classes/chillerlan-QRCode-Decoder-LuminanceSourceInterface.html#method_fromFile" class="headerlink"><i class="fas fa-link"></i></a>
    </h4>
    <aside class="phpdocumentor-element-found-in">
    <abbr class="phpdocumentor-element-found-in__file" title="src/Decoder/LuminanceSourceInterface.php"><a href="files/src-decoder-luminancesourceinterface.html"><abbr title="src/Decoder/LuminanceSourceInterface.php">LuminanceSourceInterface.php</abbr></a></abbr>
    :
    <span class="phpdocumentor-element-found-in__line">54</span>

    </aside>

        <p class="phpdocumentor-summary">Creates a LuminanceSource instance from the given file</p>

    <code class="phpdocumentor-code phpdocumentor-signature ">
    <span class="phpdocumentor-signature__visibility">public</span>
            <span class="phpdocumentor-signature__static">static</span>        <span class="phpdocumentor-signature__name">fromFile</span><span>(</span><span class="phpdocumentor-signature__argument"><span class="phpdocumentor-signature__argument__return-type">string&nbsp;</span><span class="phpdocumentor-signature__argument__name">$path</span></span><span>)</span><span> : </span><span class="phpdocumentor-signature__response_type">self</span></code>

    
        <h5 class="phpdocumentor-argument-list__heading">Parameters</h5>
    <dl class="phpdocumentor-argument-list">
                    <dt class="phpdocumentor-argument-list__entry">
                <span class="phpdocumentor-signature__argument__name">$path</span>
                : <span class="phpdocumentor-signature__argument__return-type">string</span>
                            </dt>
            <dd class="phpdocumentor-argument-list__definition">
                    <section class="phpdocumentor-description"></section>

            </dd>
            </dl>

    
        <h5 class="phpdocumentor-return-value__heading">Return values</h5>
    <span class="phpdocumentor-signature__response_type">self</span>
            &mdash;
        
    
</article>
                    <article
        class="phpdocumentor-element
            -method
            -public
                                                        "
>
    <h4 class="phpdocumentor-element__name" id="method_getHeight">
        getHeight()
        <a href="classes/chillerlan-QRCode-Decoder-LuminanceSourceInterface.html#method_getHeight" class="headerlink"><i class="fas fa-link"></i></a>
    </h4>
    <aside class="phpdocumentor-element-found-in">
    <abbr class="phpdocumentor-element-found-in__file" title="src/Decoder/LuminanceSourceInterface.php"><a href="files/src-decoder-luminancesourceinterface.html"><abbr title="src/Decoder/LuminanceSourceInterface.php">LuminanceSourceInterface.php</abbr></a></abbr>
    :
    <span class="phpdocumentor-element-found-in__line">35</span>

    </aside>

    
    <code class="phpdocumentor-code phpdocumentor-signature ">
    <span class="phpdocumentor-signature__visibility">public</span>
                    <span class="phpdocumentor-signature__name">getHeight</span><span>(</span><span>)</span><span> : </span><span class="phpdocumentor-signature__response_type">int</span></code>

    
        <h5 class="phpdocumentor-return-value__heading">Return values</h5>
    <span class="phpdocumentor-signature__response_type">int</span>
            &mdash;
            <section class="phpdocumentor-description"><p>The height of the bitmap.</p>
</section>

    
</article>
                    <article
        class="phpdocumentor-element
            -method
            -public
                                                        "
>
    <h4 class="phpdocumentor-element__name" id="method_getLuminances">
        getLuminances()
        <a href="classes/chillerlan-QRCode-Decoder-LuminanceSourceInterface.html#method_getLuminances" class="headerlink"><i class="fas fa-link"></i></a>
    </h4>
    <aside class="phpdocumentor-element-found-in">
    <abbr class="phpdocumentor-element-found-in__file" title="src/Decoder/LuminanceSourceInterface.php"><a href="files/src-decoder-luminancesourceinterface.html"><abbr title="src/Decoder/LuminanceSourceInterface.php">LuminanceSourceInterface.php</abbr></a></abbr>
    :
    <span class="phpdocumentor-element-found-in__line">25</span>

    </aside>

        <p class="phpdocumentor-summary">Fetches luminance data for the underlying bitmap. Values should be fetched using:
`int luminance = array[y * width + x] &amp; 0xff`</p>

    <code class="phpdocumentor-code phpdocumentor-signature ">
    <span class="phpdocumentor-signature__visibility">public</span>
                    <span class="phpdocumentor-signature__name">getLuminances</span><span>(</span><span>)</span><span> : </span><span class="phpdocumentor-signature__response_type">array&lt;string|int, mixed&gt;</span></code>

    
        <h5 class="phpdocumentor-return-value__heading">Return values</h5>
    <span class="phpdocumentor-signature__response_type">array&lt;string|int, mixed&gt;</span>
            &mdash;
            <section class="phpdocumentor-description"><p>A row-major 2D array of luminance values. Do not use result.length as it may be
larger than width * height bytes on some platforms. Do not modify the contents
of the result.</p>
</section>

    
</article>
                    <article
        class="phpdocumentor-element
            -method
            -public
                                                        "
>
    <h4 class="phpdocumentor-element__name" id="method_getRow">
        getRow()
        <a href="classes/chillerlan-QRCode-Decoder-LuminanceSourceInterface.html#method_getRow" class="headerlink"><i class="fas fa-link"></i></a>
    </h4>
    <aside class="phpdocumentor-element-found-in">
    <abbr class="phpdocumentor-element-found-in__file" title="src/Decoder/LuminanceSourceInterface.php"><a href="files/src-decoder-luminancesourceinterface.html"><abbr title="src/Decoder/LuminanceSourceInterface.php">LuminanceSourceInterface.php</abbr></a></abbr>
    :
    <span class="phpdocumentor-element-found-in__line">49</span>

    </aside>

        <p class="phpdocumentor-summary">Fetches one row of luminance data from the underlying platform&#039;s bitmap. Values range from
0 (black) to 255 (white). Because Java does not have an unsigned byte type, callers will have
to bitwise and with 0xff for each value. It is preferable for implementations of this method
to only fetch this row rather than the whole image, since no 2D Readers may be installed and
getLuminances() may never be called.</p>

    <code class="phpdocumentor-code phpdocumentor-signature ">
    <span class="phpdocumentor-signature__visibility">public</span>
                    <span class="phpdocumentor-signature__name">getRow</span><span>(</span><span class="phpdocumentor-signature__argument"><span class="phpdocumentor-signature__argument__return-type">int&nbsp;</span><span class="phpdocumentor-signature__argument__name">$y</span></span><span>)</span><span> : </span><span class="phpdocumentor-signature__response_type">array&lt;string|int, mixed&gt;</span></code>

    
        <h5 class="phpdocumentor-argument-list__heading">Parameters</h5>
    <dl class="phpdocumentor-argument-list">
                    <dt class="phpdocumentor-argument-list__entry">
                <span class="phpdocumentor-signature__argument__name">$y</span>
                : <span class="phpdocumentor-signature__argument__return-type">int</span>
                            </dt>
            <dd class="phpdocumentor-argument-list__definition">
                    <section class="phpdocumentor-description"><p>The row to fetch, which must be in [0,getHeight())</p>
</section>

            </dd>
            </dl>

    
    <h5 class="phpdocumentor-tag-list__heading" id="tags">
        Tags
        <a href="#tags" class="headerlink"><i class="fas fa-link"></i></a>
    </h5>
    <dl class="phpdocumentor-tag-list">
                                    <dt class="phpdocumentor-tag-list__entry">
                    <span class="phpdocumentor-tag__name">throws</span>
                </dt>
                <dd class="phpdocumentor-tag-list__definition">
                                                                <span class="phpdocumentor-tag-link"><a href="classes/chillerlan-QRCode-Decoder-QRCodeDecoderException.html"><abbr title="\chillerlan\QRCode\Decoder\QRCodeDecoderException">QRCodeDecoderException</abbr></a></span>
                                                            
                                             
                                    </dd>
                        </dl>

        <h5 class="phpdocumentor-return-value__heading">Return values</h5>
    <span class="phpdocumentor-signature__response_type">array&lt;string|int, mixed&gt;</span>
            &mdash;
            <section class="phpdocumentor-description"><p>An array containing the luminance data.</p>
</section>

    
</article>
                    <article
        class="phpdocumentor-element
            -method
            -public
                                                        "
>
    <h4 class="phpdocumentor-element__name" id="method_getWidth">
        getWidth()
        <a href="classes/chillerlan-QRCode-Decoder-LuminanceSourceInterface.html#method_getWidth" class="headerlink"><i class="fas fa-link"></i></a>
    </h4>
    <aside class="phpdocumentor-element-found-in">
    <abbr class="phpdocumentor-element-found-in__file" title="src/Decoder/LuminanceSourceInterface.php"><a href="files/src-decoder-luminancesourceinterface.html"><abbr title="src/Decoder/LuminanceSourceInterface.php">LuminanceSourceInterface.php</abbr></a></abbr>
    :
    <span class="phpdocumentor-element-found-in__line">30</span>

    </aside>

    
    <code class="phpdocumentor-code phpdocumentor-signature ">
    <span class="phpdocumentor-signature__visibility">public</span>
                    <span class="phpdocumentor-signature__name">getWidth</span><span>(</span><span>)</span><span> : </span><span class="phpdocumentor-signature__response_type">int</span></code>

    
        <h5 class="phpdocumentor-return-value__heading">Return values</h5>
    <span class="phpdocumentor-signature__response_type">int</span>
            &mdash;
            <section class="phpdocumentor-description"><p>The width of the bitmap.</p>
</section>

    
</article>
            </section>

        
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