From 52aeb3fe5a20bc01012bfef509cec1f5cbaec784 Mon Sep 17 00:00:00 2001
From: kramm <kramm>
Date: Sat, 13 Jan 2007 17:25:20 +0000
Subject: [PATCH] added comment about image alpha

---
 lib/gfxdevice.h |    2 ++
 1 file changed, 2 insertions(+)

diff --git a/lib/gfxdevice.h b/lib/gfxdevice.h
index b4dd19f..f852814 100644
--- a/lib/gfxdevice.h
+++ b/lib/gfxdevice.h
@@ -55,6 +55,8 @@ typedef struct _gfxmatrix
 
 typedef struct _gfximage
 {
+    /* if the data contains an alpha layer (a != 255), the
+       r,g,b values will have to be premultiplied */
     gfxcolor_t*data;
     int width;
     int height;
-- 
1.7.10.4