From 887f446b17c640e48cc40400e28bff37519836c2 Mon Sep 17 00:00:00 2001
From: Max Horn
Date: Sat, 13 Feb 2010 11:57:23 +0000
Subject: Document Normal2xAspect

svn-id: r48042
---
 graphics/scaler.cpp | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'graphics')

diff --git a/graphics/scaler.cpp b/graphics/scaler.cpp
index 6ad95d0bc3..a6ae544ff5 100644
--- a/graphics/scaler.cpp
+++ b/graphics/scaler.cpp
@@ -182,6 +182,12 @@ extern "C" void Normal2xAspectMask(const uint8  *srcPtr,
                                          int     height,
                                          uint32  mask);
 
+/**
+ * A 2x scaler which also does aspect ratio correction.
+ * Presumably this is Normal2x combined with vertical
+ * stretching, so it will scale a 320x200 surface to
+ * a 640x480 surface.
+ */
 void Normal2xAspect(const uint8  *srcPtr,
                           uint32  srcPitch,
                           uint8  *dstPtr,
-- 
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