如何为SVG转换设置ImageMagick字体路径？

I've got a test SVG here using Lobster:

<svg xmlns="http://www.w3.org/2000/svg" version="1.1" width="2400" height="3200" xmlns:xlink="http://www.w3.org/1999/xlink">
    <defs>
        <style>
            @import url('http://fonts.googleapis.com/css?family=Lobster');
        </style>
    </defs>
    <text id="SvgjsText1046" font-family="Lobster" fill="#000000" font-size="30px" stroke-width="0" font-style="" font-weight="" text-decoration=" " x="859.9871134019216" y="476.38530927854697" transform="rotate(0 1214.8671520099174 1164.5108891121047) translate(-9360.999092988961 -5185.475896759851) scale(11.885045772324295 11.885045772324297) ">
        <tspan id="SvgjsTspan1072" dy="29">TEST</tspan>
        <tspan id="SvgjsTspan1073" dy="29">TEST</tspan>
        <tspan id="SvgjsTspan1074" dy="29">TEST</tspan>
    </text>
</svg>

This renders fine in the browser, but when converting to a PNG in ImageMagick (using php), the font doesn't render.

I know you can use the setFont command to set a single font, but the SVG may contain multiple fonts.

In this instance, is there any way to set a font directory for ImageMagick?

From the manual it seems that there is no way to import a font directory.
May be i'm wrong btw.

Alternatives

In the manual there is ImagickDraw::setFont which allow you to use multiple fonts.

Consider that with this method you have to draw the text, It's not exactly for conversion but may be it can be usefull.