From 564314088263887504b3db376ae4b20bb7a0d750 Mon Sep 17 00:00:00 2001
From: David Williams <david@volumesoffun.com>
Date: Sat, 22 Jun 2013 11:19:30 +0200
Subject: [PATCH] Work on paging to file.

---
 library/PolyVoxCore/include/PolyVoxCore/FilePager.h | 7 +++++++
 library/PolyVoxCore/include/PolyVoxCore/Pager.h     | 4 ++++
 2 files changed, 11 insertions(+)

diff --git a/library/PolyVoxCore/include/PolyVoxCore/FilePager.h b/library/PolyVoxCore/include/PolyVoxCore/FilePager.h
index 8ba7a081..5e28782d 100644
--- a/library/PolyVoxCore/include/PolyVoxCore/FilePager.h
+++ b/library/PolyVoxCore/include/PolyVoxCore/FilePager.h
@@ -70,6 +70,13 @@ namespace PolyVox
 			{
 				logTrace() << "Paging in data for " << region;
 
+				fseek(pFile, 0L, SEEK_END);
+				pBlockData->m_uCompressedDataLength = ftell(pFile);
+				fseek(pFile, 0L, SEEK_SET);
+
+				delete[] pBlockData->m_pCompressedData;
+				pBlockData->m_pCompressedData = new uint8_t[pBlockData->m_uCompressedDataLength];
+
 				fread(pBlockData->m_pCompressedData, sizeof(uint8_t), pBlockData->m_uCompressedDataLength, pFile);
 
 				if(ferror(pFile))
diff --git a/library/PolyVoxCore/include/PolyVoxCore/Pager.h b/library/PolyVoxCore/include/PolyVoxCore/Pager.h
index 893898bb..13f4ad19 100644
--- a/library/PolyVoxCore/include/PolyVoxCore/Pager.h
+++ b/library/PolyVoxCore/include/PolyVoxCore/Pager.h
@@ -24,6 +24,7 @@ freely, subject to the following restrictions:
 #ifndef __PolyVox_Pager_H__
 #define __PolyVox_Pager_H__
 
+#include "PolyVoxCore/Impl/Block.h"
 #include "PolyVoxCore/Impl/TypeDef.h"
 
 #include "PolyVoxCore/ConstVolumeProxy.h"
@@ -42,6 +43,9 @@ namespace PolyVox
 		/// Destructor
 		virtual ~Pager() {};
 
+		virtual void pageIn(const Region& region, Block<VoxelType>* pBlockData) = 0;
+		virtual void pageOut(const Region& region, Block<VoxelType>* pBlockData) = 0;
+
 		virtual void dataRequiredHandler(const ConstVolumeProxy<VoxelType>& volumeProxy, const Region& region)
 		{
 			POLYVOX_ASSERT(false, "NOT IMPLEMENTED");