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      <base href="https://bugs.webkit.org/" />
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    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - Asynchronous image decoding should consider the drawing size if it is smaller than the size of the image"
   href="https://bugs.webkit.org/show_bug.cgi?id=168814">168814</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>Asynchronous image decoding should consider the drawing size if it is smaller than the size of the image
          </td>
        </tr>

        <tr>
          <th>Classification</th>
          <td>Unclassified
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>WebKit
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>WebKit Nightly Build
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>Unspecified
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>Unspecified
          </td>
        </tr>

        <tr>
          <th>Status</th>
          <td>NEW
          </td>
        </tr>

        <tr>
          <th>Severity</th>
          <td>Normal
          </td>
        </tr>

        <tr>
          <th>Priority</th>
          <td>P2
          </td>
        </tr>

        <tr>
          <th>Component</th>
          <td>Images
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>webkit-unassigned&#64;lists.webkit.org
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>sabouhallawa&#64;apple.com
          </td>
        </tr></table>
      <p>
        <div>
        <pre>If the size of the destinationRect is smaller than the image source size (e.g. 3000x3000 pixels), CGImageSourceCreateThumbnailAtIndex() is slower than CGImageSourceCreateImageAtIndex() in decoding this image. To overcome this problem, the entry (kCGImageSourceThumbnailMaxPixelSize, max(destinationRect.width, destinationRect.height)) is added to the options dictionary when calling CGImageSourceCreateThumbnailAtIndex(). This will avoid copying a large block of memory for the unscaled bitmap image.</pre>
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      </p>
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