summaryrefslogtreecommitdiffstats
path: root/src
diff options
context:
space:
mode:
Diffstat (limited to 'src')
-rw-r--r--src/Info.cpp55
-rw-r--r--src/Info.hpp38
-rw-r--r--src/MinedMap.cpp118
-rw-r--r--src/PNG.cpp2
4 files changed, 171 insertions, 42 deletions
diff --git a/src/Info.cpp b/src/Info.cpp
index 530d6b2..5d4bd71 100644
--- a/src/Info.cpp
+++ b/src/Info.cpp
@@ -34,7 +34,7 @@
namespace MinedMap {
-void Info::writeJSON(const char *filename) {
+void Info::writeJSON(const char *filename) const {
const std::string tmpfile = std::string(filename) + ".tmp";
FILE *f = fopen(tmpfile.c_str(), "w");
@@ -44,28 +44,43 @@ void Info::writeJSON(const char *filename) {
}
fprintf(f, "{\n");
- fprintf(f, " \"info\" : {\n");
- fprintf(f, " \"minX\" : %i,\n", minX);
- fprintf(f, " \"maxX\" : %i,\n", maxX);
- fprintf(f, " \"minZ\" : %i,\n", minZ);
- fprintf(f, " \"maxZ\" : %i\n", maxZ);
- fprintf(f, " },\n");
- fprintf(f, " \"regions\" : [\n");
-
- for (int z = minZ; z <= maxZ; z++) {
- fprintf(f, " [");
-
- for (int x = minX; x <= maxX; x++) {
- fprintf(f, "%s", regions.count(std::make_pair(x, z)) ? "true" : "false");
-
- if (x < maxX)
- fprintf(f, ", ");
+ fprintf(f, " \"mipmaps\" : [\n");
+
+ for (size_t level = 0; level < regions.size(); level++) {
+ int minX, maxX, minZ, maxZ;
+ std::tie(minX, maxX, minZ, maxZ) = getBounds(level);
+
+ fprintf(f, " {\n");
+ fprintf(f, " \"info\" : {\n");
+ fprintf(f, " \"minX\" : %i,\n", minX);
+ fprintf(f, " \"maxX\" : %i,\n", maxX);
+ fprintf(f, " \"minZ\" : %i,\n", minZ);
+ fprintf(f, " \"maxZ\" : %i\n", maxZ);
+ fprintf(f, " },\n");
+ fprintf(f, " \"regions\" : [\n");
+
+ for (int z = minZ; z <= maxZ; z++) {
+ fprintf(f, " [");
+
+ for (int x = minX; x <= maxX; x++) {
+ fprintf(f, "%s", regions[level].count(std::make_pair(x, z)) ? "true" : "false");
+
+ if (x < maxX)
+ fprintf(f, ", ");
+ }
+
+ if (z < maxZ)
+ fprintf(f, "],\n");
+ else
+ fprintf(f, "]\n");
}
- if (z < maxZ)
- fprintf(f, "],\n");
+ fprintf(f, " ]\n");
+
+ if (level < regions.size() - 1)
+ fprintf(f, " },\n");
else
- fprintf(f, "]\n");
+ fprintf(f, " }\n");
}
fprintf(f, " ],\n");
diff --git a/src/Info.hpp b/src/Info.hpp
index 478e858..b7d040f 100644
--- a/src/Info.hpp
+++ b/src/Info.hpp
@@ -31,34 +31,52 @@
#include <set>
#include <tuple>
#include <utility>
+#include <vector>
namespace MinedMap {
class Info {
private:
- std::set<std::pair<int, int>> regions;
- int minX, maxX, minZ, maxZ;
+ std::vector<std::set<std::pair<int, int>>> regions;
+ std::vector<std::tuple<int, int, int, int>> bounds;
int32_t spawnX, spawnZ;
public:
- Info() : minX(INT_MAX), maxX(INT_MIN), minZ(INT_MAX), maxZ(INT_MIN), spawnX(0), spawnZ(0) {}
+ Info() : spawnX(0), spawnZ(0) {
+ addMipmapLevel();
+ }
+
+ std::tuple<int, int, int, int> getBounds(size_t level) const {
+ return bounds[level];
+ }
+
+ void addRegion(int x, int z, size_t level) {
+ regions[level].insert(std::make_pair(x, z));
- void addRegion(int x, int z) {
- regions.insert(std::make_pair(x, z));
+ std::tuple<int, int, int, int> &b = bounds[level];
+
+ if (x < std::get<0>(b)) std::get<0>(b) = x;
+ if (x > std::get<1>(b)) std::get<1>(b) = x;
+ if (z < std::get<2>(b)) std::get<2>(b) = z;
+ if (z > std::get<3>(b)) std::get<3>(b) = z;
+ }
+
+ void addMipmapLevel() {
+ regions.emplace_back();
+ bounds.emplace_back(INT_MAX, INT_MIN, INT_MAX, INT_MIN);
+ }
- if (x < minX) minX = x;
- if (x > maxX) maxX = x;
- if (z < minZ) minZ = z;
- if (z > maxZ) maxZ = z;
+ size_t getMipmapLevel() const {
+ return regions.size()-1;
}
void setSpawn(const std::pair<int32_t, int32_t> &v) {
std::tie(spawnX, spawnZ) = v;
}
- void writeJSON(const char *filename);
+ void writeJSON(const char *filename) const;
};
}
diff --git a/src/MinedMap.cpp b/src/MinedMap.cpp
index 4ac39e1..8f548b6 100644
--- a/src/MinedMap.cpp
+++ b/src/MinedMap.cpp
@@ -35,6 +35,7 @@
#include <cstring>
#include <cstdlib>
#include <iostream>
+#include <sstream>
#include <system_error>
#include <sys/types.h>
@@ -138,18 +139,26 @@ static void doRegion(const std::string &input, const std::string &output, const
}
}
+template<typename T>
+static std::string format(const T &v) {
+ std::ostringstream s;
+
+ s << v;
+ return s.str();
+}
+
+static std::string formatTileName(int x, int z, const std::string &ext) {
+ std::ostringstream s;
+
+ s << "r." << x << "." << z << "." << ext;
+ return s.str();
+}
+
static bool checkFilename(const char *name, int *x, int *z) {
if (std::sscanf(name, "r.%i.%i.mca", x, z) != 2)
return false;
- size_t l = strlen(name) + 1;
- char buf[l];
- std::snprintf(buf, l, "r.%i.%i.mca", *x, *z);
- if (std::memcmp(name, buf, l))
- return false;
-
- return true;
-
+ return (std::string(name) == formatTileName(*x, *z, "mca"));
}
static void makeDir(const std::string &name) {
@@ -157,7 +166,94 @@ static void makeDir(const std::string &name) {
throw std::system_error(errno, std::generic_category(), "unable to create directory " + name);
}
-static void makeMipmaps(const std::string &outputdir, const Info &info) {
+static bool makeMipmap(const std::string &dir, size_t level, size_t x, size_t z, bool colored) {
+ bool ret = false;
+
+ std::string indir = dir + "/" + format(level-1) + "/";
+ std::string outdir = dir + "/" + format(level) + "/";
+
+ const std::string nw_str = indir + formatTileName(x*2, z*2, "png");
+ const std::string ne_str = indir + formatTileName(x*2+1, z*2, "png");
+ const std::string sw_str = indir + formatTileName(x*2, z*2+1, "png");
+ const std::string se_str = indir + formatTileName(x*2+1, z*2+1, "png");
+
+ const char *nw = nw_str.c_str();
+ const char *ne = ne_str.c_str();
+ const char *sw = sw_str.c_str();
+ const char *se = se_str.c_str();
+
+ struct timespec t;
+ struct stat s;
+ size_t count = 0;
+ for (auto name : {&nw, &ne, &sw, &se}) {
+ if (stat(*name, &s) < 0) {
+ *name = nullptr;
+ continue;
+ }
+
+ if (!count || s.st_mtim > t)
+ t = s.st_mtim;
+
+ count++;
+ }
+
+ std::string output = outdir + formatTileName(x, z, "png");
+ if (stat(output.c_str(), &s) == 0) {
+ ret = true;
+
+ if (!count || t <= s.st_mtim)
+ return ret;
+ }
+
+ if (!count)
+ return ret;
+
+ const std::string tmpfile = output + ".tmp";
+
+ try {
+ PNG::mipmap(tmpfile.c_str(), DIM, DIM, colored, nw, ne, sw, se);
+
+ struct timespec times[2] = {t, t};
+ if (utimensat(AT_FDCWD, tmpfile.c_str(), times, 0) < 0)
+ std::fprintf(stderr, "Warning: failed to set utime on %s: %s\n", tmpfile.c_str(), std::strerror(errno));
+
+ if (std::rename(tmpfile.c_str(), output.c_str()) < 0) {
+ std::fprintf(stderr, "Unable to save %s: %s\n", output.c_str(), std::strerror(errno));
+ unlink(tmpfile.c_str());
+ }
+ }
+ catch (const std::exception& ex) {
+ unlink(tmpfile.c_str());
+ throw;
+ }
+
+ return true;
+}
+
+static void makeMipmaps(const std::string &dir, Info *info) {
+ int minX, maxX, minZ, maxZ;
+ std::tie(minX, maxX, minZ, maxZ) = info->getBounds(0);
+
+ while (minX < -1 || maxX > 0 || minZ < -1 || maxZ > 0) {
+ info->addMipmapLevel();
+ size_t level = info->getMipmapLevel();
+ makeDir(dir + "/map/" + format(level));
+ makeDir(dir + "/light/" + format(level));
+
+ minX = (minX-1)/2;
+ maxX = maxX/2;
+ minZ = (minZ-1)/2;
+ maxZ = maxZ/2;
+
+ for (int x = minX; x <= maxX; x++) {
+ for (int z = minZ; z <= maxZ; z++) {
+ if (makeMipmap(dir + "/map", level, x, z, true))
+ info->addRegion(x, z, level);
+
+ makeMipmap(dir + "/light", level, x, z, false);
+ }
+ }
+ }
}
}
@@ -196,7 +292,7 @@ int main(int argc, char *argv[]) {
if (!checkFilename(entry->d_name, &x, &z))
continue;
- info.addRegion(x, z);
+ info.addRegion(x, z, 0);
std::string name(entry->d_name), outname = name.substr(0, name.length()-3) + "png";
doRegion(regiondir + "/" + name, outputdir + "/map/0/" + outname, outputdir + "/light/0/" + outname);
@@ -207,7 +303,7 @@ int main(int argc, char *argv[]) {
World::Level level((inputdir + "/level.dat").c_str());
info.setSpawn(level.getSpawn());
- makeMipmaps(outputdir, info);
+ makeMipmaps(outputdir, &info);
info.writeJSON((outputdir + "/info.json").c_str());
diff --git a/src/PNG.cpp b/src/PNG.cpp
index 9edf88c..f56c870 100644
--- a/src/PNG.cpp
+++ b/src/PNG.cpp
@@ -147,7 +147,7 @@ void mipmap(const char *output, size_t width, size_t height, bool colored, const
readScaled(data, 0, height/2, sw, width, height, colored);
readScaled(data, width/2, height/2, se, width, height, colored);
- write(output, data, width, height, true);
+ write(output, data, width, height, colored);
}
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-22 01:29:14 +0100