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-rw-r--r--Tools/QtBiomeVisualiser/ChunkSource.cpp241
-rw-r--r--Tools/QtBiomeVisualiser/ChunkSource.h34
-rw-r--r--Tools/QtBiomeVisualiser/MainWindow.cpp12
-rw-r--r--Tools/QtBiomeVisualiser/QtBiomeVisualiser.pro38
4 files changed, 320 insertions, 5 deletions
diff --git a/Tools/QtBiomeVisualiser/ChunkSource.cpp b/Tools/QtBiomeVisualiser/ChunkSource.cpp
index 2235816bc..54da2afe5 100644
--- a/Tools/QtBiomeVisualiser/ChunkSource.cpp
+++ b/Tools/QtBiomeVisualiser/ChunkSource.cpp
@@ -3,6 +3,8 @@
#include <QThread>
#include "Generating/BioGen.h"
#include "inifile/iniFile.h"
+#include "StringCompression.h"
+#include "WorldStorage/FastNBT.h"
@@ -182,3 +184,242 @@ void BioGenSource::reload()
+
+////////////////////////////////////////////////////////////////////////////////
+// AnvilSource::AnvilFile
+
+class AnvilSource::AnvilFile
+{
+public:
+ /** Coordinates of the region file. */
+ int m_RegionX, m_RegionZ;
+
+ /** True iff the file contains proper data. */
+ bool m_IsValid;
+
+
+
+ /** Creates a new instance with the specified region coords. Reads the file header. */
+ AnvilFile(int a_RegionX, int a_RegionZ, const AString & a_WorldPath) :
+ m_RegionX(a_RegionX),
+ m_RegionZ(a_RegionZ),
+ m_IsValid(false)
+ {
+ readFile(Printf("%s/r.%d.%d.mca", a_WorldPath.c_str(), a_RegionX, a_RegionZ));
+ }
+
+
+
+ /** Returns the compressed data of the specified chunk.
+ Returns an empty string when chunk not present. */
+ AString getChunkData(int a_ChunkX, int a_ChunkZ)
+ {
+ if (!m_IsValid)
+ {
+ return "";
+ }
+
+ // Translate to local coords:
+ int RelChunkX = a_ChunkX - m_RegionX * 32;
+ int RelChunkZ = a_ChunkZ - m_RegionZ * 32;
+ ASSERT((RelChunkX >= 0) && (RelChunkX < 32));
+ ASSERT((RelChunkZ >= 0) && (RelChunkZ < 32));
+
+ // Get the chunk data location:
+ UInt32 chunkOffset = m_Header[RelChunkX + 32 * RelChunkZ] >> 8;
+ UInt32 numChunkSectors = m_Header[RelChunkX + 32 * RelChunkZ] & 0xff;
+ if ((chunkOffset < 2) || (numChunkSectors == 0))
+ {
+ return "";
+ }
+
+ // Get the real data size:
+ const char * chunkData = m_FileData.data() + chunkOffset * 4096;
+ UInt32 chunkSize = GetBEInt(chunkData);
+ if ((chunkSize < 2) || (chunkSize / 4096 > numChunkSectors))
+ {
+ // Bad data, bail out
+ return "";
+ }
+
+ // Check the compression method:
+ if (chunkData[4] != 2)
+ {
+ // Chunk is in an unknown compression
+ return "";
+ }
+ chunkSize--;
+
+ // Read the chunk data:
+ return m_FileData.substr(chunkOffset * 4096 + 5, chunkSize);
+ }
+
+protected:
+ AString m_FileData;
+ UInt32 m_Header[2048];
+
+
+ /** Reads the whole specified file contents and parses the header. */
+ void readFile(const AString & a_FileName)
+ {
+ // Read the entire file:
+ m_FileData = cFile::ReadWholeFile(a_FileName);
+ if (m_FileData.size() < sizeof(m_Header))
+ {
+ return;
+ }
+
+ // Parse the header - change endianness:
+ const char * hdr = m_FileData.data();
+ for (size_t i = 0; i < ARRAYCOUNT(m_Header); i++)
+ {
+ m_Header[i] = GetBEInt(hdr + 4 * i);
+ }
+ m_IsValid = true;
+ }
+};
+
+
+
+
+
+////////////////////////////////////////////////////////////////////////////////
+// AnvilSource:
+
+AnvilSource::AnvilSource(QString a_WorldRegionFolder) :
+ m_WorldRegionFolder(a_WorldRegionFolder)
+{
+}
+
+
+
+
+
+void AnvilSource::getChunkBiomes(int a_ChunkX, int a_ChunkZ, ChunkPtr a_DestChunk)
+{
+ // Load the compressed data:
+ AString compressedChunkData = getCompressedChunkData(a_ChunkX, a_ChunkZ);
+ if (compressedChunkData.empty())
+ {
+ return;
+ }
+
+ // Uncompress the chunk data:
+ AString uncompressed;
+ int res = InflateString(compressedChunkData.data(), compressedChunkData.size(), uncompressed);
+ if (res != Z_OK)
+ {
+ return;
+ }
+
+ // Parse the NBT data:
+ cParsedNBT nbt(uncompressed.data(), uncompressed.size());
+ if (!nbt.IsValid())
+ {
+ return;
+ }
+
+ // Get the biomes out of the NBT:
+ int Level = nbt.FindChildByName(0, "Level");
+ if (Level < 0)
+ {
+ return;
+ }
+ cChunkDef::BiomeMap biomeMap;
+ int mcsBiomes = nbt.FindChildByName(Level, "MCSBiomes");
+ if ((mcsBiomes >= 0) && (nbt.GetDataLength(mcsBiomes) == sizeof(biomeMap)))
+ {
+ // Convert the biomes from BigEndian to platform native numbers:
+ const char * beBiomes = nbt.GetData(mcsBiomes);
+ for (size_t i = 0; i < ARRAYCOUNT(biomeMap); i++)
+ {
+ biomeMap[i] = (EMCSBiome)GetBEInt(beBiomes + 4 * i);
+ }
+ // Render the biomes:
+ Chunk::Image img;
+ biomesToImage(biomeMap, img);
+ a_DestChunk->setImage(img);
+ return;
+ }
+
+ // MCS biomes not found, load Vanilla biomes instead:
+ int biomes = nbt.FindChildByName(Level, "Biomes");
+ if ((biomes < 0) || (nbt.GetDataLength(biomes) != ARRAYCOUNT(biomeMap)))
+ {
+ return;
+ }
+ // Convert the biomes from Vanilla to EMCSBiome:
+ const char * vanillaBiomes = nbt.GetData(biomes);
+ for (size_t i = 0; i < ARRAYCOUNT(biomeMap); i++)
+ {
+ biomeMap[i] = EMCSBiome(vanillaBiomes[i]);
+ }
+ // Render the biomes:
+ Chunk::Image img;
+ biomesToImage(biomeMap, img);
+ a_DestChunk->setImage(img);
+}
+
+
+
+
+
+void AnvilSource::reload()
+{
+ // Remove all files from the cache:
+ QMutexLocker lock(&m_Mtx);
+ m_Files.clear();
+}
+
+
+
+
+
+void AnvilSource::chunkToRegion(int a_ChunkX, int a_ChunkZ, int & a_RegionX, int & a_RegionZ)
+{
+ a_RegionX = a_ChunkX >> 5;
+ a_RegionZ = a_ChunkZ >> 5;
+}
+
+
+
+
+
+AString AnvilSource::getCompressedChunkData(int a_ChunkX, int a_ChunkZ)
+{
+ return getAnvilFile(a_ChunkX, a_ChunkZ)->getChunkData(a_ChunkX, a_ChunkZ);
+}
+
+
+
+
+
+AnvilSource::AnvilFilePtr AnvilSource::getAnvilFile(int a_ChunkX, int a_ChunkZ)
+{
+ int RegionX, RegionZ;
+ chunkToRegion(a_ChunkX, a_ChunkZ, RegionX, RegionZ);
+
+ // Search the cache for the file:
+ QMutexLocker lock(&m_Mtx);
+ for (auto itr = m_Files.cbegin(), end = m_Files.cend(); itr != end; ++itr)
+ {
+ if (((*itr)->m_RegionX == RegionX) && ((*itr)->m_RegionZ == RegionZ))
+ {
+ // Found the file in the cache, move it to front and return it:
+ AnvilFilePtr file(*itr);
+ m_Files.erase(itr);
+ m_Files.push_front(file);
+ return file;
+ }
+ }
+
+ // File not in cache, create it:
+ AnvilFilePtr file(new AnvilFile(RegionX, RegionZ, m_WorldRegionFolder.toStdString()));
+ m_Files.push_front(file);
+ return file;
+}
+
+
+
+
+
diff --git a/Tools/QtBiomeVisualiser/ChunkSource.h b/Tools/QtBiomeVisualiser/ChunkSource.h
index 868e4a144..a5612da01 100644
--- a/Tools/QtBiomeVisualiser/ChunkSource.h
+++ b/Tools/QtBiomeVisualiser/ChunkSource.h
@@ -1,4 +1,5 @@
#pragma once
+#include "Globals.h"
#include <QString>
#include <QMutex>
#include "Chunk.h"
@@ -64,11 +65,40 @@ class AnvilSource :
public ChunkSource
{
public:
- // TODO
+ /** Constructs a new AnvilSource based on the world path. */
+ AnvilSource(QString a_WorldRegionFolder);
// ChunkSource overrides:
virtual void getChunkBiomes(int a_ChunkX, int a_ChunkZ, ChunkPtr a_DestChunk) override;
- virtual void reload() override {}
+ virtual void reload() override;
+
+protected:
+ class AnvilFile;
+ typedef std::shared_ptr<AnvilFile> AnvilFilePtr;
+
+
+ /** Folder where the individual Anvil Region files are located. */
+ QString m_WorldRegionFolder;
+
+ /** List of currently loaded files. Acts as a cache so that a file is not opened and closed over and over again.
+ Protected against multithreaded access by m_Mtx. */
+ std::list<AnvilFilePtr> m_Files;
+
+ /** Guards m_Files agains multithreaded access. */
+ QMutex m_Mtx;
+
+
+ /** Converts chunk coords to region coords. */
+ void chunkToRegion(int a_ChunkX, int a_ChunkZ, int & a_RegionX, int & a_RegionZ);
+
+ /** Returns the compressed data of the specified chunk.
+ Returns an empty string if the chunk is not available. */
+ AString getCompressedChunkData(int a_ChunkX, int a_ChunkZ);
+
+ /** Returns the file object that contains the specified chunk.
+ The file is taken from the cache if available there, otherwise it is created anew. */
+ AnvilFilePtr getAnvilFile(int a_ChunkX, int a_ChunkZ);
+
};
diff --git a/Tools/QtBiomeVisualiser/MainWindow.cpp b/Tools/QtBiomeVisualiser/MainWindow.cpp
index 65d0ccf5e..b6db806f9 100644
--- a/Tools/QtBiomeVisualiser/MainWindow.cpp
+++ b/Tools/QtBiomeVisualiser/MainWindow.cpp
@@ -39,6 +39,10 @@ MainWindow::~MainWindow()
void MainWindow::generate()
{
QString worldIni = QFileDialog::getOpenFileName(this, tr("Open world.ini"), QString(), tr("world.ini (world.ini)"));
+ if (worldIni.isEmpty())
+ {
+ return;
+ }
m_BiomeView->setChunkSource(std::shared_ptr<BioGenSource>(new BioGenSource(worldIni)));
m_BiomeView->redraw();
}
@@ -49,7 +53,13 @@ void MainWindow::generate()
void MainWindow::open()
{
- // TODO
+ QString regionFolder = QFileDialog::getExistingDirectory(this, tr("Select the region folder"), QString());
+ if (regionFolder.isEmpty())
+ {
+ return;
+ }
+ m_BiomeView->setChunkSource(std::shared_ptr<AnvilSource>(new AnvilSource(regionFolder)));
+ m_BiomeView->redraw();
}
diff --git a/Tools/QtBiomeVisualiser/QtBiomeVisualiser.pro b/Tools/QtBiomeVisualiser/QtBiomeVisualiser.pro
index e6b65e628..283e180f8 100644
--- a/Tools/QtBiomeVisualiser/QtBiomeVisualiser.pro
+++ b/Tools/QtBiomeVisualiser/QtBiomeVisualiser.pro
@@ -29,7 +29,24 @@ SOURCES += main.cpp\
ChunkCache.cpp \
Chunk.cpp \
ChunkSource.cpp \
- ChunkLoader.cpp
+ ChunkLoader.cpp \
+ ../../src/StringCompression.cpp \
+ ../../src/WorldStorage/FastNBT.cpp \
+ ../../lib/zlib/adler32.c \
+ ../../lib/zlib/compress.c \
+ ../../lib/zlib/crc32.c \
+ ../../lib/zlib/deflate.c \
+ ../../lib/zlib/gzclose.c \
+ ../../lib/zlib/gzlib.c \
+ ../../lib/zlib/gzread.c \
+ ../../lib/zlib/gzwrite.c \
+ ../../lib/zlib/infback.c \
+ ../../lib/zlib/inffast.c \
+ ../../lib/zlib/inflate.c \
+ ../../lib/zlib/inftrees.c \
+ ../../lib/zlib/trees.c \
+ ../../lib/zlib/uncompr.c \
+ ../../lib/zlib/zutil.c
HEADERS += MainWindow.h \
Globals.h \
@@ -48,7 +65,20 @@ HEADERS += MainWindow.h \
ChunkCache.h \
Chunk.h \
ChunkSource.h \
- ChunkLoader.h
+ ChunkLoader.h \
+ ../../src/StringCompression.h \
+ ../../src/WorldStorage/FastNBT.h \
+ ../../lib/zlib/crc32.h \
+ ../../lib/zlib/deflate.h \
+ ../../lib/zlib/gzguts.h \
+ ../../lib/zlib/inffast.h \
+ ../../lib/zlib/inffixed.h \
+ ../../lib/zlib/inflate.h \
+ ../../lib/zlib/inftrees.h \
+ ../../lib/zlib/trees.h \
+ ../../lib/zlib/zconf.h \
+ ../../lib/zlib/zlib.h \
+ ../../lib/zlib/zutil.h
INCLUDEPATH += $$_PRO_FILE_PWD_ \
$$_PRO_FILE_PWD_/../../src \
@@ -57,4 +87,8 @@ INCLUDEPATH += $$_PRO_FILE_PWD_ \
CONFIG += C++11
+OTHER_FILES += \
+ ../../lib/zlib/example.c.txt \
+ ../../lib/zlib/minigzip.c.txt
+
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-09 22:04:09 +0100