From 289bcc9d444e02db2f0210ed3eff360294b7062c Mon Sep 17 00:00:00 2001
From: Pavel Krajcevski <pavel@cs.unc.edu>
Date: Sat, 28 Sep 2013 22:39:27 -0400
Subject: [PATCH] Make the block index for the stat function the pointer
 reinterpreted as an integer. This way we know exactly what block it is
 because we simply need to sort the stats in the output log.

---
 BPTCEncoder/src/BC7Compressor.cpp | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/BPTCEncoder/src/BC7Compressor.cpp b/BPTCEncoder/src/BC7Compressor.cpp
index 3c65f79..648360c 100755
--- a/BPTCEncoder/src/BC7Compressor.cpp
+++ b/BPTCEncoder/src/BC7Compressor.cpp
@@ -1545,13 +1545,13 @@ namespace BC7C {
 
   class BlockLogger {
    public:
-    BlockLogger(uint32 blockIdx, std::ostream &os)
+    BlockLogger(uint64 blockIdx, std::ostream &os)
       : m_BlockIdx(blockIdx), m_Stream(os) { }
 
     template<typename T>
     friend std::ostream &operator<<(const BlockLogger &bl, const T &v);
 
-    uint32 m_BlockIdx;
+    uint64 m_BlockIdx;
     std::ostream &m_Stream;
   };
 
@@ -1738,7 +1738,7 @@ namespace BC7C {
 
         const uint32 *pixelBuf = reinterpret_cast<const uint32 *>(inBuf);
         if(logStream) {
-          uint32 blockIdx = (j/4) * (cj.width/4) + (i/4);
+          uint64 blockIdx = reinterpret_cast<uint64>(pixelBuf);
           CompressBC7Block(pixelBuf, outBuf, BlockLogger(blockIdx, *logStream));
         } else {
           CompressBC7Block(pixelBuf, outBuf);