From 73f49920813e7db9f10ad8dc53bad5e6ca1e921b Mon Sep 17 00:00:00 2001
From: Pavel Krajcevski <pavel@cs.unc.edu>
Date: Thu, 29 Aug 2013 18:33:56 -0400
Subject: [PATCH] If we want a color channel with zero depth then it should
 default to full intensity, but we will remember that there is zero depth
 there.

---
 PVRTCEncoder/src/Pixel.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/PVRTCEncoder/src/Pixel.cpp b/PVRTCEncoder/src/Pixel.cpp
index e84b60e..69d3c3c 100644
--- a/PVRTCEncoder/src/Pixel.cpp
+++ b/PVRTCEncoder/src/Pixel.cpp
@@ -85,7 +85,9 @@ namespace PVRTCC {
       assert(depth <= 8);
 
       channel = 0;
-      if(depth + bitIdx < 8) {
+      if(0 == depth) {
+        channel = 0xFF;
+      } else if(depth + bitIdx < 8) {
         channel = bits[byteIdx] & ((1 << depth) - 1);
         bitIdx += depth;
       } else {