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authorMattes D <github@xoft.cz>2014-09-15 16:50:40 +0200
committerMattes D <github@xoft.cz>2014-09-15 16:50:40 +0200
commitd772bc032f12bceac2d974ad9165597edabe5b0a (patch)
tree609648207d15494012b08f95e38b2a156ec50c93 /Tools/QtBiomeVisualiser/ChunkSource.cpp
parentQtBiomeVisualiser: Extended zoom down below 100%. (diff)
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Diffstat (limited to 'Tools/QtBiomeVisualiser/ChunkSource.cpp')
-rw-r--r--Tools/QtBiomeVisualiser/ChunkSource.cpp74
1 files changed, 68 insertions, 6 deletions
diff --git a/Tools/QtBiomeVisualiser/ChunkSource.cpp b/Tools/QtBiomeVisualiser/ChunkSource.cpp
index 44dcf1fa7..5658198f4 100644
--- a/Tools/QtBiomeVisualiser/ChunkSource.cpp
+++ b/Tools/QtBiomeVisualiser/ChunkSource.cpp
@@ -1,6 +1,8 @@
#include "Globals.h"
#include "ChunkSource.h"
+#include <QThread>
#include "Generating/BioGen.h"
+#include "inifile/iniFile.h"
@@ -138,9 +140,12 @@ static void biomesToImage(cChunkDef::BiomeMap & a_Biomes, Chunk::Image & a_Image
////////////////////////////////////////////////////////////////////////////////
// BioGenSource:
-BioGenSource::BioGenSource(cBiomeGen * a_BiomeGen) :
- m_BiomeGen(a_BiomeGen)
+BioGenSource::BioGenSource(QString a_WorldIniPath) :
+ m_WorldIniPath(a_WorldIniPath),
+ m_WorldIni(new cIniFile),
+ m_Mtx(QMutex::Recursive)
{
+ reload();
}
@@ -149,11 +154,14 @@ BioGenSource::BioGenSource(cBiomeGen * a_BiomeGen) :
void BioGenSource::getChunkBiomes(int a_ChunkX, int a_ChunkZ, ChunkPtr a_DestChunk)
{
- // TODO: To make use of multicore machines, we need multiple copies of the biomegen
- // Right now we have only one, so we can let only one thread use it (hence the mutex)
- QMutexLocker lock(&m_Mtx);
+ cBiomeGenPtr biomeGen;
+ {
+ QMutexLocker lock(&m_Mtx);
+ biomeGen = getBiomeGen();
+ }
cChunkDef::BiomeMap biomes;
- m_BiomeGen->GenBiomes(a_ChunkX, a_ChunkZ, biomes);
+ biomeGen->GenBiomes(a_ChunkX, a_ChunkZ, biomes);
+ releaseBiomeGen(biomeGen);
Chunk::Image img;
biomesToImage(biomes, img);
a_DestChunk->setImage(img);
@@ -162,3 +170,57 @@ void BioGenSource::getChunkBiomes(int a_ChunkX, int a_ChunkZ, ChunkPtr a_DestChu
+
+void BioGenSource::reload()
+{
+ {
+ QMutexLocker lock(&m_Mtx);
+ if (!m_WorldIni->ReadFile(m_WorldIniPath.toStdString()))
+ {
+ return;
+ }
+ m_AvailableGens.clear();
+ }
+}
+
+
+
+
+cBiomeGenPtr BioGenSource::getBiomeGen()
+{
+ QMutexLocker lock(&m_Mtx);
+
+ // Return a generator from the cache, if available:
+ if (!m_AvailableGens.empty())
+ {
+ cBiomeGenPtr res = m_AvailableGens.back();
+ m_AvailableGens.pop_back();
+ return res;
+ }
+
+ // No generator in cache available, create a new one:
+ int seed = m_WorldIni->GetValueSetI("Seed", "Seed", 0);
+ bool unused = false;
+ return cBiomeGenPtr(cBiomeGen::CreateBiomeGen(*m_WorldIni, seed, unused));
+}
+
+
+
+
+
+void BioGenSource::releaseBiomeGen(cBiomeGenPtr a_BiomeGen)
+{
+ QMutexLocker lock(&m_Mtx);
+ m_AvailableGens.push_back(a_BiomeGen);
+
+ // Trim the cache if there are too many gens:
+ int wantedNumGens = QThread::idealThreadCount();
+ if (m_AvailableGens.size() > (size_t)(4 * wantedNumGens))
+ {
+ m_AvailableGens.resize(wantedNumGens);
+ }
+}
+
+
+
+