1 files changed, 81 insertions, 0 deletions
diff --git a/fontconfig/conf.d/10-scale-bitmap-fonts.conf b/fontconfig/conf.d/10-scale-bitmap-fonts.conf
new file mode 100644
index 000000000..e3bcd46cd
--- /dev/null
+++ b/fontconfig/conf.d/10-scale-bitmap-fonts.conf
@@ -0,0 +1,81 @@
+<?xml version="1.0"?>
+<!DOCTYPE fontconfig SYSTEM "fonts.dtd">
+<fontconfig>
+
+<match target="font">
+  <test name="scalable" 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>
+<match target="font">
+  <test name="scalable" compare="eq">
+    <bool>false</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>
+<!--
+  So far we determined the scale factor.  Now, check and if
+  scaling is NOT desirable, just reset the scale factor to 1.0.
+  -->
+<match target="font">
+  <test name="scalable" compare="eq">
+    <bool>false</bool>
+  </test>
+  <test name="pixelsize" target="pattern" compare="less">
+    <double>64</double>
+  </test>
+  <test name="hinting" compare="eq">
+    <bool>true</bool>
+  </test>
+  <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="scalable" 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>