Add visualization renderer.

Add API for getting raw pitch bend values.
Fix non-compliant RPN handling.

The visualization renderer is still at the "proof-of-concept" stage.
It's not very usable (yet).

8 files changed, 703 insertions, 0 deletions

diff --git a/visualization/renderer/CMakeLists.txt b/visualization/renderer/CMakeLists.txt
new file mode 100644
index 0000000..90a4704
--- /dev/null
+++ b/visualization/renderer/CMakeLists.txt
@@ -0,0 +1,26 @@
+set(qmpvisrender_SOURCES
+	qmpsettingsro.hpp
+	qmppluginapistub.hpp
+	qmpvisrendercore.hpp
+	main.cpp
+	qmpsettingsro.cpp
+	qmppluginapistub.cpp
+	qmpvisrendercore.cpp
+)
+
+set(CMAKE_AUTOMOC ON)
+
+include_directories(${PROJECT_SOURCE_DIR}/core/)
+include_directories(${PROJECT_SOURCE_DIR}/include/)
+
+add_executable(qmpvisrender
+    ${qmpvisrender_SOURCES}
+)
+
+target_link_libraries(qmpvisrender
+    Qt5::Core
+    qmpcore
+    ${CMAKE_DL_LIBS}
+)
+
+install(TARGETS qmpvisrender)
diff --git a/visualization/renderer/main.cpp b/visualization/renderer/main.cpp
new file mode 100644
index 0000000..ec4dd1d
--- /dev/null
+++ b/visualization/renderer/main.cpp
@@ -0,0 +1,22 @@
+#include <QProcess>
+#include <QCommandLineParser>
+
+#include "qmpvisrendercore.hpp"
+
+int main(int argc,char **argv)
+{
+	QCoreApplication::setApplicationName("qmpvisrender");
+	QCoreApplication a(argc,argv);
+	QCommandLineParser clp;
+	clp.setApplicationDescription("Renderer a visualization of a midi file.");
+	clp.addHelpOption();
+	clp.parse(a.arguments());
+	qmpVisRenderCore core;
+	core.loadVisualizationLibrary();
+	if(clp.positionalArguments().size())
+		core.setMIDIFile(clp.positionalArguments().front().toStdString().c_str());
+	core.startRender();
+	int retval=a.exec();
+	core.unloadVisualizationLibrary();
+	return retval;
+}
diff --git a/visualization/renderer/qmppluginapistub.cpp b/visualization/renderer/qmppluginapistub.cpp
new file mode 100644
index 0000000..d37e191
--- /dev/null
+++ b/visualization/renderer/qmppluginapistub.cpp
@@ -0,0 +1,198 @@
+#include "qmpmidiplay.hpp"
+#include "qmpvisrendercore.hpp"
+#include "qmpsettingsro.hpp"
+#include "qmppluginapistub.hpp"
+
+#include <QTextCodec>
+
+qmpPluginAPIStub::qmpPluginAPIStub(qmpVisRenderCore *_core):
+	core(_core)
+{
+}
+
+qmpPluginAPIStub::~qmpPluginAPIStub()
+{
+	core=nullptr;
+}
+
+uint32_t qmpPluginAPIStub::getDivision()
+{
+	return core->player->getDivision();
+}
+uint32_t qmpPluginAPIStub::getRawTempo(){return 0;}
+double qmpPluginAPIStub::getRealTempo(){return 0;}
+uint32_t qmpPluginAPIStub::getTimeSig(){return 0;}
+int qmpPluginAPIStub::getKeySig(){return 0;}
+uint32_t qmpPluginAPIStub::getNoteCount(){return 0;}
+uint32_t qmpPluginAPIStub::getMaxTick()
+{
+	return core->player->getMaxTick();
+}
+uint32_t qmpPluginAPIStub::getCurrentPolyphone(){return 0;}
+uint32_t qmpPluginAPIStub::getMaxPolyphone(){return 0;}
+uint32_t qmpPluginAPIStub::getCurrentTimeStamp(){return 0;}
+uint32_t qmpPluginAPIStub::getCurrentPlaybackPercentage(){return 0;}
+int qmpPluginAPIStub::getChannelCC(int ch, int cc){return 0;}
+int qmpPluginAPIStub::getChannelPreset(int ch){return 0;}
+void qmpPluginAPIStub::playerSeek(uint32_t percentage){}
+double qmpPluginAPIStub::getPitchBend(int ch){return 0;}
+void qmpPluginAPIStub::getPitchBendRaw(int ch,uint32_t *pb,uint32_t *pbr){}
+bool qmpPluginAPIStub::getChannelMask(int ch){return 0;}
+std::string qmpPluginAPIStub::getTitle()
+{
+	if(core->settings()->getOptionEnumIntOptName("Midi/TextEncoding")=="Unicode")
+		return std::string(core->player->getTitle());
+	return QTextCodec::codecForName(
+				core->settings()->getOptionEnumIntOptName("Midi/TextEncoding").c_str())->
+			toUnicode(core->player->getTitle()).toStdString();
+}
+std::wstring qmpPluginAPIStub::getWTitle()
+{
+	if(core->settings()->getOptionEnumIntOptName("Midi/TextEncoding")=="Unicode")
+		return QString(core->player->getTitle()).toStdWString();
+	return QTextCodec::codecForName(
+				core->settings()->getOptionEnumIntOptName("Midi/TextEncoding").c_str())->
+			toUnicode(core->player->getTitle()).toStdWString();
+}
+std::string qmpPluginAPIStub::getChannelPresetString(int ch){return std::string();}
+bool qmpPluginAPIStub::isDarkTheme(){return false;}
+void *qmpPluginAPIStub::getMainWindow(){return nullptr;}
+void qmpPluginAPIStub::discardCurrentEvent(){}
+void qmpPluginAPIStub::commitEventChange(SEvent d){}
+void qmpPluginAPIStub::callEventReaderCB(SEvent d){}
+void qmpPluginAPIStub::setFuncState(std::string name,bool state){}
+void qmpPluginAPIStub::setFuncEnabled(std::string name, bool enable)
+{}
+void qmpPluginAPIStub::registerFunctionality(qmpFuncBaseIntf *i, std::string name, std::string desc, const char *icon, int iconlen, bool checkable)
+{
+	if(name=="Visualization")
+		core->vf=i;
+}
+void qmpPluginAPIStub::unregisterFunctionality(std::string name)
+{
+	if(name=="Visualization")
+		core->vf=nullptr;
+}
+
+int qmpPluginAPIStub::registerUIHook(std::string e, ICallBack *cb, void *userdat){}
+int qmpPluginAPIStub::registerUIHook(std::string e, callback_t cb, void *userdat)
+{
+	if(e=="main.start")
+		core->startcb=cb;
+	return 0;
+}
+void qmpPluginAPIStub::unregisterUIHook(std::string e, int hook)
+{
+	if(e=="main.start")
+		core->startcb=nullptr;
+}
+
+void qmpPluginAPIStub::registerMidiOutDevice(qmpMidiOutDevice *dev, std::string name){}
+void qmpPluginAPIStub::unregisterMidiOutDevice(std::string name){}
+
+int qmpPluginAPIStub::registerEventReaderIntf(ICallBack *cb, void *userdata){}
+void qmpPluginAPIStub::unregisterEventReaderIntf(int intfhandle){}
+int qmpPluginAPIStub::registerEventHandlerIntf(ICallBack *cb, void *userdata){}
+void qmpPluginAPIStub::unregisterEventHandlerIntf(int intfhandle){}
+int qmpPluginAPIStub::registerFileReadFinishedHandlerIntf(ICallBack *cb, void *userdata){}
+void qmpPluginAPIStub::unregisterFileReadFinishedHandlerIntf(int intfhandle){}
+
+int qmpPluginAPIStub::registerEventHandler(callback_t cb, void *userdata, bool post){}
+void qmpPluginAPIStub::unregisterEventHandler(int id){}
+int qmpPluginAPIStub::registerEventReadHandler(callback_t cb, void *userdata)
+{
+	return core->player->registerEventReadHandler(cb,userdata);
+}
+void qmpPluginAPIStub::unregisterEventReadHandler(int id)
+{
+	core->player->unregisterEventReadHandler(id);
+}
+int qmpPluginAPIStub::registerFileReadFinishHook(callback_t cb, void *userdata)
+{
+	return core->player->registerFileReadFinishHook(cb,userdata);
+}
+void qmpPluginAPIStub::unregisterFileReadFinishHook(int id)
+{
+	core->player->unregisterFileReadFinishHook(id);
+}
+
+void qmpPluginAPIStub::registerFileReader(qmpFileReader *reader, std::string name){}
+void qmpPluginAPIStub::unregisterFileReader(std::string name){}
+
+void qmpPluginAPIStub::registerOptionInt(std::string tab, std::string desc, std::string key, int min, int max, int defaultval)
+{
+	core->settings()->registerOptionInt(tab,desc,key,min,max,defaultval);
+}
+int qmpPluginAPIStub::getOptionInt(std::string key)
+{
+	return core->settings()->getOptionInt(key);
+}
+void qmpPluginAPIStub::setOptionInt(std::string key, int val)
+{
+	core->settings()->setOptionInt(key,val);
+}
+
+void qmpPluginAPIStub::registerOptionUint(std::string tab, std::string desc, std::string key, unsigned min, unsigned max, unsigned defaultval)
+{
+	core->settings()->registerOptionUint(tab,desc,key,min,max,defaultval);
+}
+unsigned qmpPluginAPIStub::getOptionUint(std::string key)
+{
+	return core->settings()->getOptionUint(key);
+}
+void qmpPluginAPIStub::setOptionUint(std::string key, unsigned val)
+{
+	return core->settings()->setOptionUint(key,val);
+}
+
+void qmpPluginAPIStub::registerOptionBool(std::string tab, std::string desc, std::string key, bool defaultval)
+{
+	core->settings()->registerOptionBool(tab,desc,key,defaultval);
+}
+bool qmpPluginAPIStub::getOptionBool(std::string key)
+{
+	return core->settings()->getOptionBool(key);
+}
+void qmpPluginAPIStub::setOptionBool(std::string key, bool val)
+{
+	core->settings()->setOptionBool(key,val);
+}
+
+void qmpPluginAPIStub::registerOptionDouble(std::string tab, std::string desc, std::string key, double min, double max, double defaultval)
+{
+	core->settings()->registerOptionDouble(tab,desc,key,min,max,defaultval);
+}
+double qmpPluginAPIStub::getOptionDouble(std::string key)
+{
+	return core->settings()->getOptionDouble(key);
+}
+void qmpPluginAPIStub::setOptionDouble(std::string key, double val)
+{
+	core->settings()->setOptionDouble(key,val);
+}
+
+void qmpPluginAPIStub::registerOptionString(std::string tab, std::string desc, std::string key, std::string defaultval, bool ispath)
+{
+	core->settings()->registerOptionString(tab,desc,key,defaultval,ispath);
+}
+std::string qmpPluginAPIStub::getOptionString(std::string key)
+{
+	return core->settings()->getOptionString(key);
+}
+void qmpPluginAPIStub::setOptionString(std::string key, std::string val)
+{
+	core->settings()->setOptionString(key,val);
+}
+
+void qmpPluginAPIStub::registerOptionEnumInt(std::string tab, std::string desc, std::string key, std::vector<std::string> options, int defaultval)
+{
+	core->settings()->registerOptionEnumInt(tab,desc,key,options,defaultval);
+}
+int qmpPluginAPIStub::getOptionEnumInt(std::string key)
+{
+	return core->settings()->getOptionEnumInt(key);
+}
+void qmpPluginAPIStub::setOptionEnumInt(std::string key, int val)
+{
+	core->settings()->setOptionEnumInt(key,val);
+}
diff --git a/visualization/renderer/qmppluginapistub.hpp b/visualization/renderer/qmppluginapistub.hpp
new file mode 100644
index 0000000..d96cfca
--- /dev/null
+++ b/visualization/renderer/qmppluginapistub.hpp
@@ -0,0 +1,85 @@
+#ifndef QMPPLUGINAPISTUB_HPP
+#define QMPPLUGINAPISTUB_HPP
+
+#include "qmpcorepublic.hpp"
+
+class qmpVisRenderCore;
+class qmpPluginAPIStub:public qmpPluginAPI
+{
+public:
+	qmpPluginAPIStub(qmpVisRenderCore *_core);
+	~qmpPluginAPIStub();
+	uint32_t getDivision();
+	uint32_t getRawTempo();
+	double getRealTempo();
+	uint32_t getTimeSig();
+	int getKeySig();
+	uint32_t getNoteCount();
+	uint32_t getMaxTick();
+	uint32_t getCurrentPolyphone();
+	uint32_t getMaxPolyphone();
+	uint32_t getCurrentTimeStamp();
+	uint32_t getCurrentPlaybackPercentage();
+	int getChannelCC(int ch,int cc);
+	int getChannelPreset(int ch);
+	void playerSeek(uint32_t percentage);
+	double getPitchBend(int ch);
+	void getPitchBendRaw(int ch,uint32_t *pb,uint32_t *pbr);
+	bool getChannelMask(int ch);
+	std::string getTitle();
+	std::wstring getWTitle();
+	std::string getChannelPresetString(int ch);
+	bool isDarkTheme();
+	void* getMainWindow();
+
+	void discardCurrentEvent();
+	void commitEventChange(SEvent d);
+	void callEventReaderCB(SEvent d);
+	void setFuncState(std::string name,bool state);
+	void setFuncEnabled(std::string name,bool enable);
+
+	void registerFunctionality(qmpFuncBaseIntf* i,std::string name,std::string desc,const char* icon,int iconlen,bool checkable);
+	void unregisterFunctionality(std::string name);
+	int registerUIHook(std::string e,ICallBack* cb,void* userdat);
+	int registerUIHook(std::string e,callback_t cb,void* userdat);
+	void unregisterUIHook(std::string e,int hook);
+	void registerMidiOutDevice(qmpMidiOutDevice* dev,std::string name);
+	void unregisterMidiOutDevice(std::string name);
+	int registerEventReaderIntf(ICallBack* cb,void* userdata);
+	void unregisterEventReaderIntf(int intfhandle);
+	int registerEventHandlerIntf(ICallBack* cb,void* userdata);
+	void unregisterEventHandlerIntf(int intfhandle);
+	int registerFileReadFinishedHandlerIntf(ICallBack* cb,void* userdata);
+	void unregisterFileReadFinishedHandlerIntf(int intfhandle);
+	int registerEventHandler(callback_t cb,void *userdata,bool post=false);
+	void unregisterEventHandler(int id);
+	int registerEventReadHandler(callback_t cb,void *userdata);
+	void unregisterEventReadHandler(int id);
+	int registerFileReadFinishHook(callback_t cb,void *userdata);
+	void unregisterFileReadFinishHook(int id);
+	void registerFileReader(qmpFileReader* reader,std::string name);
+	void unregisterFileReader(std::string name);
+
+	void registerOptionInt(std::string tab,std::string desc,std::string key,int min,int max,int defaultval);
+	int getOptionInt(std::string key);
+	void setOptionInt(std::string key,int val);
+	void registerOptionUint(std::string tab,std::string desc,std::string key,unsigned min,unsigned max,unsigned defaultval);
+	unsigned getOptionUint(std::string key);
+	void setOptionUint(std::string key,unsigned val);
+	void registerOptionBool(std::string tab,std::string desc,std::string key,bool defaultval);
+	bool getOptionBool(std::string key);
+	void setOptionBool(std::string key,bool val);
+	void registerOptionDouble(std::string tab,std::string desc,std::string key,double min,double max,double defaultval);
+	double getOptionDouble(std::string key);
+	void setOptionDouble(std::string key,double val);
+	void registerOptionString(std::string tab,std::string desc,std::string key,std::string defaultval,bool ispath=false);
+	std::string getOptionString(std::string key);
+	void setOptionString(std::string key,std::string val);
+	void registerOptionEnumInt(std::string tab,std::string desc,std::string key,std::vector<std::string> options,int defaultval);
+	int getOptionEnumInt(std::string key);
+	void setOptionEnumInt(std::string key,int val);
+private:
+	qmpVisRenderCore* core;
+};
+
+#endif // QMPPLUGINAPISTUB_HPP
diff --git a/visualization/renderer/qmpsettingsro.cpp b/visualization/renderer/qmpsettingsro.cpp
new file mode 100644
index 0000000..cc6e0bf
--- /dev/null
+++ b/visualization/renderer/qmpsettingsro.cpp
@@ -0,0 +1,167 @@
+#include <QScopedPointer>
+#include <QSettings>
+
+#include "qmpsettingsro.hpp"
+
+qmpSettingsRO::qmpSettingsRO()
+{
+}
+
+void qmpSettingsRO::registerOptionInt(std::string tab,std::string desc,std::string key,int min,int max,int defaultval)
+{
+	Q_UNUSED(tab)
+	optionlist.push_back(key);
+	options[key]=qmpOptionR(desc,qmpOptionR::ParameterType::parameter_int,defaultval,min,max);
+}
+int qmpSettingsRO::getOptionInt(std::string key)
+{
+	if(options.find(key)!=options.end()&&options[key].type==qmpOptionR::ParameterType::parameter_int)
+		return settings.value(QString(key.c_str()),options[key].defaultval).toInt();
+	return options[key].defaultval.toInt();
+}
+void qmpSettingsRO::setOptionInt(std::string key,int val)
+{
+	if(options.find(key)!=options.end()&&options[key].type==qmpOptionR::ParameterType::parameter_int)
+		settings.insert(QString(key.c_str()),val);
+}
+
+void qmpSettingsRO::registerOptionUint(std::string tab,std::string desc,std::string key,unsigned min,unsigned max,unsigned defaultval)
+{
+	Q_UNUSED(tab)
+	optionlist.push_back(key);
+	options[key]=qmpOptionR(desc,qmpOptionR::ParameterType::parameter_uint,defaultval,min,max);
+}
+unsigned qmpSettingsRO::getOptionUint(std::string key)
+{
+	if(options.find(key)!=options.end()&&options[key].type==qmpOptionR::ParameterType::parameter_uint)
+		return settings.value(QString(key.c_str()),options[key].defaultval).toUInt();
+	return options[key].defaultval.toUInt();
+}
+void qmpSettingsRO::setOptionUint(std::string key,unsigned val)
+{
+	if(options.find(key)!=options.end()&&options[key].type==qmpOptionR::ParameterType::parameter_uint)
+		settings.insert(QString(key.c_str()),val);
+}
+
+void qmpSettingsRO::registerOptionBool(std::string tab,std::string desc,std::string key,bool defaultval)
+{
+	Q_UNUSED(tab)
+	optionlist.push_back(key);
+	options[key]=qmpOptionR(desc,qmpOptionR::ParameterType::parameter_bool,defaultval);
+}
+bool qmpSettingsRO::getOptionBool(std::string key)
+{
+	if(options.find(key)!=options.end()&&options[key].type==qmpOptionR::ParameterType::parameter_bool)
+		return settings.value(QString(key.c_str()),options[key].defaultval).toBool();
+	return options[key].defaultval.toBool();
+}
+void qmpSettingsRO::setOptionBool(std::string key,bool val)
+{
+	if(options.find(key)!=options.end()&&options[key].type==qmpOptionR::ParameterType::parameter_bool)
+		settings.insert(QString(key.c_str()),val);
+}
+
+void qmpSettingsRO::registerOptionDouble(std::string tab,std::string desc,std::string key,double min,double max,double defaultval)
+{
+	Q_UNUSED(tab)
+	optionlist.push_back(key);
+	options[key]=qmpOptionR(desc,qmpOptionR::ParameterType::parameter_double,defaultval,min,max);
+}
+double qmpSettingsRO::getOptionDouble(std::string key)
+{
+	if(options.find(key)!=options.end()&&options[key].type==qmpOptionR::ParameterType::parameter_double)
+		return settings.value(QString(key.c_str()),options[key].defaultval).toDouble();
+	return options[key].defaultval.toDouble();
+}
+void qmpSettingsRO::setOptionDouble(std::string key,double val)
+{
+	if(options.find(key)!=options.end()&&options[key].type==qmpOptionR::ParameterType::parameter_double)
+		settings.insert(QString(key.c_str()),val);
+}
+
+void qmpSettingsRO::registerOptionString(std::string tab,std::string desc,std::string key,std::string defaultval,bool is_url)
+{
+	Q_UNUSED(tab)
+	optionlist.push_back(key);
+	options[key]=qmpOptionR(desc,
+		is_url?qmpOptionR::ParameterType::parameter_url:qmpOptionR::ParameterType::parameter_str,
+		QString(defaultval.c_str()));
+}
+std::string qmpSettingsRO::getOptionString(std::string key)
+{
+	if(options.find(key)!=options.end()&&
+		(options[key].type==qmpOptionR::ParameterType::parameter_str||options[key].type==qmpOptionR::ParameterType::parameter_url))
+		return settings.value(QString(key.c_str()),options[key].defaultval).toString().toStdString();
+	return options[key].defaultval.toString().toStdString();
+}
+void qmpSettingsRO::setOptionString(std::string key,std::string val)
+{
+	if(options.find(key)!=options.end()&&
+		(options[key].type==qmpOptionR::ParameterType::parameter_str||options[key].type==qmpOptionR::ParameterType::parameter_url))
+		settings.insert(QString(key.c_str()),QString(val.c_str()));
+}
+
+void qmpSettingsRO::registerOptionEnumInt(std::string tab,std::string desc,std::string key,std::vector<std::string> enumlist,int defaultval)
+{
+	Q_UNUSED(tab)
+	optionlist.push_back(key);
+	options[key]=qmpOptionR(desc,qmpOptionR::ParameterType::parameter_enum,defaultval);
+	options[key].enumlist=enumlist;
+}
+int qmpSettingsRO::getOptionEnumInt(std::string key)
+{
+	if(options.find(key)!=options.end()&&options[key].type==qmpOptionR::ParameterType::parameter_enum)
+	{
+		std::string curitm=settings.value(QString(key.c_str()),options[key].defaultval).toString().toStdString();
+		auto curidx=std::find(options[key].enumlist.begin(),options[key].enumlist.end(),curitm);
+		if(curidx!=options[key].enumlist.end())
+			return static_cast<int>(curidx-options[key].enumlist.begin());
+		else
+		{
+			return options[key].defaultval.toInt();
+		}
+	}
+	return options[key].defaultval.toInt();
+}
+std::string qmpSettingsRO::getOptionEnumIntOptName(std::string key)
+{
+	if(options.find(key)!=options.end()&&options[key].type==qmpOptionR::ParameterType::parameter_enum)
+	{
+		std::string curitm=settings.value(QString(key.c_str()),options[key].defaultval).toString().toStdString();
+		auto curidx=std::find(options[key].enumlist.begin(),options[key].enumlist.end(),curitm);
+		if(curidx!=options[key].enumlist.end())
+			return curitm;
+		else
+		{
+			return options[key].enumlist[static_cast<size_t>(options[key].defaultval.toInt())];
+		}
+	}
+	return options[key].enumlist[static_cast<size_t>(options[key].defaultval.toInt())];
+}
+void qmpSettingsRO::setOptionEnumInt(std::string key,int val)
+{
+	if(options.find(key)!=options.end()&&options[key].type==qmpOptionR::ParameterType::parameter_enum)
+	{
+		if(static_cast<size_t>(val)<options[key].enumlist.size())
+			settings.insert(QString(key.c_str()),QString(options[key].enumlist[static_cast<size_t>(val)].c_str()));
+	}
+}
+void qmpSettingsRO::setOptionEnumIntOptName(std::string key,std::string valname)
+{
+	if(options.find(key)!=options.end()&&options[key].type==qmpOptionR::ParameterType::parameter_enum)
+	{
+		auto curidx=std::find(options[key].enumlist.begin(),options[key].enumlist.end(),valname);
+		if(curidx!=options[key].enumlist.end())
+			settings.insert(QString(key.c_str()),QString(valname.c_str()));
+	}
+}
+
+void qmpSettingsRO::load(const char *path)
+{
+	QScopedPointer<QSettings> qsettings(new QSettings(path,QSettings::Format::IniFormat));
+	settings.clear();
+	for(QString&k:qsettings->allKeys())
+	{
+		settings.insert(k,qsettings->value(k));
+	}
+}
diff --git a/visualization/renderer/qmpsettingsro.hpp b/visualization/renderer/qmpsettingsro.hpp
new file mode 100644
index 0000000..30ab9b6
--- /dev/null
+++ b/visualization/renderer/qmpsettingsro.hpp
@@ -0,0 +1,73 @@
+#ifndef QMPSETTINGSRO_H
+#define QMPSETTINGSRO_H
+
+#include <map>
+#include <string>
+#include <vector>
+
+#include <QVariant>
+#include <QPointer>
+
+struct qmpOptionR
+{
+	enum ParameterType{
+		parameter_int=0,
+		parameter_uint,
+		parameter_bool,
+		parameter_double,
+		parameter_str,
+		parameter_enum,
+		parameter_url,
+		parameter_custom=0x100
+	};
+
+	std::string desc;
+	ParameterType type;
+	QVariant defaultval,minv,maxv;
+	std::vector<std::string> enumlist;
+
+	qmpOptionR(){}
+	qmpOptionR(
+			std::string _desc,
+			ParameterType _t,QVariant _def=QVariant(),
+			QVariant _min=QVariant(),QVariant _max=QVariant()):
+		desc(_desc),
+		type(_t),
+		defaultval(_def),
+		minv(_min),
+		maxv(_max){}
+};
+
+class qmpSettingsRO
+{
+public:
+	qmpSettingsRO();
+	void registerOptionInt(std::string tab,std::string desc,std::string key,int min,int max,int defaultval);
+	int getOptionInt(std::string key);
+	void setOptionInt(std::string key,int val);
+	void registerOptionUint(std::string tab,std::string desc,std::string key,unsigned min,unsigned max,unsigned defaultval);
+	unsigned getOptionUint(std::string key);
+	void setOptionUint(std::string key,unsigned val);
+	void registerOptionBool(std::string tab,std::string desc,std::string key,bool defaultval);
+	bool getOptionBool(std::string key);
+	void setOptionBool(std::string key,bool val);
+	void registerOptionDouble(std::string tab,std::string desc,std::string key,double min,double max,double defaultval);
+	double getOptionDouble(std::string key);
+	void setOptionDouble(std::string key,double val);
+	void registerOptionString(std::string tab,std::string desc,std::string key,std::string defaultval,bool is_url);
+	std::string getOptionString(std::string key);
+	void setOptionString(std::string key,std::string val);
+	void registerOptionEnumInt(std::string tab,std::string desc,std::string key,std::vector<std::string> enumlist,int defaultval);
+	int getOptionEnumInt(std::string key);
+	std::string getOptionEnumIntOptName(std::string key);
+	void setOptionEnumInt(std::string key,int val);
+	void setOptionEnumIntOptName(std::string key,std::string valname);
+
+	void load(const char* path);
+private:
+	std::map<std::string,qmpOptionR> options;
+	std::vector<std::string> optionlist;
+	QVariantMap settings;
+};
+
+#endif
diff --git a/visualization/renderer/qmpvisrendercore.cpp b/visualization/renderer/qmpvisrendercore.cpp
new file mode 100644
index 0000000..fb1a7ef
--- /dev/null
+++ b/visualization/renderer/qmpvisrendercore.cpp
@@ -0,0 +1,88 @@
+#include "qmpvisrendercore.hpp"
+#include "qmppluginapistub.hpp"
+#include "qmpsettingsro.hpp"
+#include "qmpmidiplay.hpp"
+#include "qmpcorepublic.hpp"
+
+#include <cassert>
+#include <dlfcn.h>
+
+#include <QProcess>
+#include <QDebug>
+#include <QThread>
+qmpVisRenderCore *qmpVisRenderCore::inst=nullptr;
+
+qmpVisRenderCore::qmpVisRenderCore():QObject(nullptr)
+{
+	inst=this;
+	player=new CMidiPlayer();
+	api=new qmpPluginAPIStub(this);
+	msettings=new qmpSettingsRO();
+	msettings->registerOptionEnumInt("MIDI","Text encoding","Midi/TextEncoding",{"Unicode","Big5","Big5-HKSCS","CP949","EUC-JP","EUC-KR","GB18030","KOI8-R","KOI8-U","Macintosh","Shift-JIS"},0);
+}
+
+void qmpVisRenderCore::loadVisualizationLibrary()
+{
+	mp=dlopen("libvisualization.so",RTLD_LAZY);
+	if(!mp)fprintf(stderr,"failed to load visualization module!\n");
+	GetInterface_func getintf=reinterpret_cast<GetInterface_func>(dlsym(mp,"qmpPluginGetInterface"));
+	SwitchMode_func switchmode=reinterpret_cast<SwitchMode_func>(dlsym(mp,"switchToRenderMode"));
+	vf=nullptr;
+	vp=getintf(api);
+	switchmode(&qmpVisRenderCore::framefunc,false);
+	vp->init();
+	msettings->load("/home/chrisoft/.config/qmprc");
+}
+
+void qmpVisRenderCore::unloadVisualizationLibrary()
+{
+	vp->deinit();
+	dlclose(mp);
+}
+
+void qmpVisRenderCore::setMIDIFile(const char *url)
+{
+	player->playerLoadFile(url);
+}
+
+void qmpVisRenderCore::startRender()
+{
+	assert(vf);
+	ffmpegproc=new QProcess();
+	ffmpegproc->setProgram("ffmpeg");
+	QStringList arguments;
+	arguments
+		<<"-f"<<"rawvideo"
+		<<"-pixel_format"<<"rgba"
+		<<"-video_size"<<"1600x900"
+		<<"-framerate"<<"60"
+		<<"-i"<<"pipe:";
+	arguments
+		<<"-vf"<<"vflip"
+		<<"-pix_fmt"<<"yuv420p"
+		<<"-c:v"<<"libx264"
+		<<"-preset"<<"fast"
+		<<"-crf"<<"22";
+	arguments<<"output.mp4";
+	ffmpegproc->setArguments(arguments);
+	ffmpegproc->start();
+	connect(ffmpegproc,QOverload<int,QProcess::ExitStatus>::of(&QProcess::finished),
+			[this](int x,QProcess::ExitStatus){qDebug("%d",x);qDebug()<<this->ffmpegproc->readAllStandardError();});
+	vf->show();
+	startcb(nullptr,nullptr);
+}
+
+void qmpVisRenderCore::framefunc(void *px, size_t sz)
+{
+	if(sz)
+	{
+		inst->ffmpegproc->write((const char*)px,sz);
+		while(inst->ffmpegproc->bytesToWrite()>1<<26)
+		{
+			inst->ffmpegproc->waitForBytesWritten();
+			QThread::yieldCurrentThread();
+		}
+	}
+	else
+		inst->ffmpegproc->closeWriteChannel();
+}
diff --git a/visualization/renderer/qmpvisrendercore.hpp b/visualization/renderer/qmpvisrendercore.hpp
new file mode 100644
index 0000000..0c024f1
--- /dev/null
+++ b/visualization/renderer/qmpvisrendercore.hpp
@@ -0,0 +1,44 @@
+#ifndef QMPVISRENDERCORE_HPP
+#define QMPVISRENDERCORE_HPP
+
+#include <cstddef>
+
+#include <QObject>
+#include "qmpcorepublic.hpp"
+
+class qmpPluginAPIStub;
+class CMidiPlayer;
+class qmpSettingsRO;
+
+class QProcess;
+
+class qmpVisRenderCore:public QObject
+{
+	Q_OBJECT
+public:
+	qmpVisRenderCore();
+	void loadVisualizationLibrary();
+	void unloadVisualizationLibrary();
+	void setMIDIFile(const char* url);
+	void startRender();
+
+	qmpSettingsRO* settings(){return msettings;}
+
+private:
+	qmpPluginIntf *vp;
+	qmpFuncBaseIntf *vf;
+	callback_t startcb;
+	void *mp;
+	qmpPluginAPIStub *api;
+	CMidiPlayer *player;
+	qmpSettingsRO *msettings;
+	QProcess *ffmpegproc;
+	typedef qmpPluginIntf*(*GetInterface_func)(qmpPluginAPI*);
+	typedef void(*SwitchMode_func)(void(*frameCallback)(void*,size_t),bool hidewindow);
+
+	friend class qmpPluginAPIStub;
+	static void framefunc(void* px,size_t sz);
+	static qmpVisRenderCore *inst;
+};
+
+#endif // QMPVISRENDERCORE_HPP