QtBiomeVisualiser: Switched caching to entire regions.

This speeds up the rendering preparation for small zooms.

Tools/QtBiomeVisualiser/RegionLoader.cpp

@@ -0,0 +1,37 @@
+#include "Globals.h"
+#include "RegionLoader.h"
+#include "ChunkSource.h"
+#include "Region.h"
+
+
+
+
+
+RegionLoader::RegionLoader(int a_RegionX, int a_RegionZ, RegionPtr a_Region, ChunkSourcePtr a_ChunkSource) :
+	m_RegionX(a_RegionX),
+	m_RegionZ(a_RegionZ),
+	m_Region(a_Region),
+	m_ChunkSource(a_ChunkSource)
+{
+}
+
+
+
+
+
+void RegionLoader::run()
+{
+	// Load all the chunks in this region:
+	for (int z = 0; z < 32; z++)
+	{
+		for (int x = 0; x < 32; x++)
+		{
+			m_ChunkSource->getChunkBiomes(m_RegionX * 32 + x, m_RegionZ * 32 + z, m_Region->getRelChunk(x, z));
+		}
+	}
+	emit loaded(m_RegionX, m_RegionZ);
+}
+
+
+
+