From 2c8254d6c3c2f5a601e880ce436ae76df5d153ec Mon Sep 17 00:00:00 2001
From: Pavel Krajcevski <pavel@cs.unc.edu>
Date: Wed, 25 Sep 2013 16:38:10 -0400
Subject: [PATCH] Small optimization: reserve vector data before we populate
 blocks vector.

---
 PVRTCEncoder/src/Compressor.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/PVRTCEncoder/src/Compressor.cpp b/PVRTCEncoder/src/Compressor.cpp
index 850f5d0..2b167a6 100644
--- a/PVRTCEncoder/src/Compressor.cpp
+++ b/PVRTCEncoder/src/Compressor.cpp
@@ -296,7 +296,9 @@ namespace PVRTCC {
     // Pack everything into a PVRTC blocks.
     const uint32 blocksW = dcj.width / 4;
     const uint32 blocksH = dcj.height / 4;
+
     std::vector<uint64> blocks;
+    blocks.reserve(blocksW * blocksH);
     for(uint32 j = 0; j < blocksH; j++) {
       for(uint32 i = 0; i < blocksW; i++) {
         Block b;