Move Quicktune code to util/ (#8871)

1 files changed, 104 insertions, 0 deletions

diff --git a/src/util/quicktune.cpp b/src/util/quicktune.cpp
new file mode 100644
index 000000000..37d4933de
--- /dev/null
+++ b/src/util/quicktune.cpp
@@ -0,0 +1,104 @@
+/*
+Minetest
+Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU Lesser General Public License as published by
+the Free Software Foundation; either version 2.1 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU Lesser General Public License for more details.
+
+You should have received a copy of the GNU Lesser General Public License along
+with this program; if not, write to the Free Software Foundation, Inc.,
+51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#include "quicktune.h"
+#include "threading/mutex_auto_lock.h"
+#include "util/string.h"
+
+std::string QuicktuneValue::getString()
+{
+	switch(type){
+	case QVT_NONE:
+		return "(none)";
+	case QVT_FLOAT:
+		return ftos(value_QVT_FLOAT.current);
+	}
+	return "<invalid type>";
+}
+void QuicktuneValue::relativeAdd(float amount)
+{
+	switch(type){
+	case QVT_NONE:
+		break;
+	case QVT_FLOAT:
+		value_QVT_FLOAT.current += amount * (value_QVT_FLOAT.max - value_QVT_FLOAT.min);
+		if(value_QVT_FLOAT.current > value_QVT_FLOAT.max)
+			value_QVT_FLOAT.current = value_QVT_FLOAT.max;
+		if(value_QVT_FLOAT.current < value_QVT_FLOAT.min)
+			value_QVT_FLOAT.current = value_QVT_FLOAT.min;
+		break;
+	}
+}
+
+static std::map<std::string, QuicktuneValue> g_values;
+static std::vector<std::string> g_names;
+std::mutex *g_mutex = NULL;
+
+static void makeMutex()
+{
+	if(!g_mutex){
+		g_mutex = new std::mutex();
+	}
+}
+
+std::vector<std::string> getQuicktuneNames()
+{
+	return g_names;
+}
+
+QuicktuneValue getQuicktuneValue(const std::string &name)
+{
+	makeMutex();
+	MutexAutoLock lock(*g_mutex);
+	std::map<std::string, QuicktuneValue>::iterator i = g_values.find(name);
+	if(i == g_values.end()){
+		QuicktuneValue val;
+		val.type = QVT_NONE;
+		return val;
+	}
+	return i->second;
+}
+
+void setQuicktuneValue(const std::string &name, const QuicktuneValue &val)
+{
+	makeMutex();
+	MutexAutoLock lock(*g_mutex);
+	g_values[name] = val;
+	g_values[name].modified = true;
+}
+
+void updateQuicktuneValue(const std::string &name, QuicktuneValue &val)
+{
+	makeMutex();
+	MutexAutoLock lock(*g_mutex);
+	std::map<std::string, QuicktuneValue>::iterator i = g_values.find(name);
+	if(i == g_values.end()){
+		g_values[name] = val;
+		g_names.push_back(name);
+		return;
+	}
+	QuicktuneValue &ref = i->second;
+	if(ref.modified)
+		val = ref;
+	else{
+		ref = val;
+		ref.modified = false;
+	}
+}
+