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authorMattes D <github@xoft.cz>2014-10-27 23:58:09 +0100
committerMattes D <github@xoft.cz>2014-10-27 23:58:09 +0100
commitc53b7e5d38c24bce7ba55abf3060ffd012783086 (patch)
treee592eeadadbd41cede746f8729bd70c275552eb5 /Tools/QtBiomeVisualiser/ChunkCache.cpp
parentFixed typo. (diff)
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Diffstat (limited to 'Tools/QtBiomeVisualiser/ChunkCache.cpp')
-rw-r--r--Tools/QtBiomeVisualiser/ChunkCache.cpp126
1 files changed, 0 insertions, 126 deletions
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);
-}
-
-
-
-