<fontconfig>

  <its:rules xmlns:its="http://www.w3.org/2005/11/its" version="1.0">

    <its:translateRule translate="no" selector="/fontconfig/*[not(self::description)]"/>

  </its:rules>

  <description>Bitmap scaling</description>

  If font is bitmap, calculate scale factor.

  Note that color bitmap fonts have scalable=true, while

  non-color ones have scalable=false.  Both groups have outline=false.

  -->

<match target="font">

  <test name="outline" compare="eq">

    <bool>false</bool>

  </test>

  <edit name="pixelsizefixupfactor" mode="assign">

    <divide>

      <name target="pattern">pixelsize</name>

      <name target="font"   >pixelsize</name>

    </divide>

  </edit>

</match>

  For non-scalable bitmap fonts (ie. non-color), skip

  minor scaling if hinting is enabled.

  -->

<match target="font">

  <test name="outline" compare="eq">

    <bool>false</bool>

  </test>

  <test name="scalable" compare="eq">

    <bool>false</bool>

  </test>

  <test name="hinting" compare="eq">

    <bool>true</bool>

  </test>

  <edit name="scalingnotneeded" mode="assign">

    <and>

      <less>

        <name>pixelsizefixupfactor</name>

        <double>1.2</double>

      </less>

      <more>

        <name>pixelsizefixupfactor</name>

        <double>0.8</double>

      </more>

    </and>

  </edit>

</match>

<match target="font">

  <test name="scalingnotneeded" compare="eq">

    <bool>true</bool>

  </test>

  <edit name="pixelsizefixupfactor" mode="assign">

    <double>1.0</double>

  </edit>

</match>

  If we *are* going to scale, go ahead and do it.

  -->

<match target="font">

  <test name="outline" compare="eq">

    <bool>false</bool>

  </test>

  <test name="pixelsizefixupfactor" compare="not_eq">

    <double>1.0</double>

  </test>

  <edit name="matrix" mode="assign">

    <times>

      <name>matrix</name>

      <matrix>

        <name>pixelsizefixupfactor</name> <double>0</double>

        <double>0</double> <name>pixelsizefixupfactor</name>

       </matrix>

    </times>

  </edit>

  <edit name="size" mode="assign">

    <divide>

      <name>size</name>

      <name>pixelsizefixupfactor</name>

    </divide>

  </edit>

</match>

</fontconfig>