From c53b7e5d38c24bce7ba55abf3060ffd012783086 Mon Sep 17 00:00:00 2001
From: Mattes D <github@xoft.cz>
Date: Mon, 27 Oct 2014 23:58:09 +0100
Subject: QtBiomeVisualiser: Switched caching to entire regions.

This speeds up the rendering preparation for small zooms.
---
 Tools/QtBiomeVisualiser/ChunkCache.cpp | 126 ---------------------------------
 1 file changed, 126 deletions(-)
 delete mode 100644 Tools/QtBiomeVisualiser/ChunkCache.cpp

(limited to 'Tools/QtBiomeVisualiser/ChunkCache.cpp')

diff --git a/Tools/QtBiomeVisualiser/ChunkCache.cpp b/Tools/QtBiomeVisualiser/ChunkCache.cpp
deleted file mode 100644
index 05c267d30..000000000
--- a/Tools/QtBiomeVisualiser/ChunkCache.cpp
+++ /dev/null
@@ -1,126 +0,0 @@
-#include "Globals.h"
-#include "ChunkCache.h"
-#include <QMutexLocker>
-#include <QThreadPool>
-#include "ChunkSource.h"
-#include "ChunkLoader.h"
-
-
-
-
-
-ChunkCache::ChunkCache(QObject * parent) :
-	super(parent)
-{
-	m_Cache.setMaxCost(1024 * 1024 * 1024);  // 1 GiB of memory for the cache
-}
-
-
-
-
-
-ChunkPtr ChunkCache::fetch(int a_ChunkX, int a_ChunkZ)
-{
-	// Retrieve from the cache:
-	quint32 hash = getChunkHash(a_ChunkX, a_ChunkZ);
-	ChunkPtr * res;
-	{
-		QMutexLocker lock(&m_Mtx);
-		res = m_Cache[hash];
-		// If succesful and chunk loaded, return the retrieved value:
-		if ((res != nullptr) && (*res)->isValid())
-		{
-			return *res;
-		}
-	}
-
-	// If the chunk is in cache but not valid, it means it has been already queued for rendering, do nothing now:
-	if (res != nullptr)
-	{
-		return ChunkPtr(nullptr);
-	}
-
-	// There's no such item in the cache, create it now:
-	res = new ChunkPtr(new Chunk);
-	if (res == nullptr)
-	{
-		return ChunkPtr(nullptr);
-	}
-	{
-		QMutexLocker lock(&m_Mtx);
-		m_Cache.insert(hash, res, sizeof(Chunk));
-	}
-
-	// Queue the chunk for rendering:
-	queueChunkRender(a_ChunkX, a_ChunkZ, *res);
-
-	// Return failure, the chunk is not yet rendered:
-	return ChunkPtr(nullptr);
-}
-
-
-
-
-
-void ChunkCache::setChunkSource(std::shared_ptr<ChunkSource> a_ChunkSource)
-{
-	// Replace the chunk source:
-	m_ChunkSource = a_ChunkSource;
-
-	// Clear the cache:
-	QMutexLocker lock(&m_Mtx);
-	m_Cache.clear();
-}
-
-
-
-
-
-void ChunkCache::reload()
-{
-	assert(m_ChunkSource.get() != nullptr);
-
-	// Reload the chunk source:
-	m_ChunkSource->reload();
-
-	// Clear the cache:
-	QMutexLocker lock(&m_Mtx);
-	m_Cache.clear();
-}
-
-
-
-
-
-void ChunkCache::gotChunk(int a_ChunkX, int a_ChunkZ)
-{
-	emit chunkAvailable(a_ChunkX, a_ChunkZ);
-}
-
-
-
-
-
-quint32 ChunkCache::getChunkHash(int a_ChunkX, int a_ChunkZ)
-{
-	// Simply join the two coords into a single int
-	// The coords will never be larger than 16-bits, so we can do this safely
-	return (((static_cast<quint32>(a_ChunkX) & 0xffff) << 16) | (static_cast<quint32>(a_ChunkZ) & 0xffff));
-}
-
-
-
-
-
-void ChunkCache::queueChunkRender(int a_ChunkX, int a_ChunkZ, ChunkPtr & a_Chunk)
-{
-	// Create a new loader task:
-	ChunkLoader * loader = new ChunkLoader(a_ChunkX, a_ChunkZ, a_Chunk, m_ChunkSource);
-	connect(loader, SIGNAL(loaded(int, int)), this, SLOT(gotChunk(int, int)));
-
-	QThreadPool::globalInstance()->start(loader);
-}
-
-
-
-
-- 
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