From d79c9a22244ebc7aba491ad50ef2edced6c00d88 Mon Sep 17 00:00:00 2001
From: José Fonseca <jfonseca@vmware.com>
Date: Mon, 16 Sep 2013 14:57:30 +0100
Subject: image: Non-standard PNM format variant for 4-float images.

---
 scripts/retracediff.py | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'scripts')

diff --git a/scripts/retracediff.py b/scripts/retracediff.py
index c0518df2..71e9f064 100755
--- a/scripts/retracediff.py
+++ b/scripts/retracediff.py
@@ -148,6 +148,10 @@ def read_pnm(stream):
         channels = 3
         bytesPerChannel = 4
         mode = 'RGB'
+    elif magic == 'PX':
+        channels = 4
+        bytesPerChannel = 4
+        mode = 'RGB'
     else:
         raise Exception('Unsupported magic `%s`' % magic)
     comment = ''
-- 
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