Initial community commit

Src/external_dependencies/openmpt-trunk/common/Profiler.h

@@ -0,0 +1,128 @@
+/*
+ * Profiler.h
+ * ----------
+ * Purpose: Performance measuring
+ * Notes  : (currently none)
+ * Authors: OpenMPT Devs
+ * The OpenMPT source code is released under the BSD license. Read LICENSE for more details.
+ */
+
+
+#pragma once
+
+#include "openmpt/all/BuildSettings.hpp"
+
+
+#include "mpt/mutex/mutex.hpp"
+
+#include <string>
+#include <vector>
+
+
+OPENMPT_NAMESPACE_BEGIN
+
+
+#if defined(MODPLUG_TRACKER)
+
+//#define USE_PROFILER
+
+#endif
+
+#ifdef USE_PROFILER
+
+class Profiler
+{
+public:
+	enum Category
+	{
+		GUI,
+		Audio,
+		Notify,
+		CategoriesCount
+	};
+	static std::vector<std::string> GetCategoryNames()
+	{
+		std::vector<std::string> ret;
+		ret.push_back("GUI");
+		ret.push_back("Audio");
+		ret.push_back("Notify");
+		return ret;
+	}
+public:
+	static void Update();
+	static std::string DumpProfiles();
+	static std::vector<double> DumpCategories();
+};
+
+
+class Profile
+{
+private:
+	mutable mpt::mutex datamutex;
+public:
+	struct Data
+	{
+		uint64 Calls;
+		uint64 Sum;
+		int64  Overhead;
+		uint64 Start;
+	};
+public:
+	Data data;
+	uint64 EnterTime;
+	Profiler::Category Category;
+	const char * const Name;
+	uint64 GetTime() const;
+	uint64 GetFrequency() const;
+public:
+	Profile(Profiler::Category category, const char *name);
+	~Profile();
+	void Reset();
+	void Enter();
+	void Leave();
+	class Scope
+	{
+	private:
+		Profile &profile;
+	public:
+		Scope(Profile &p) : profile(p) { profile.Enter(); }
+		~Scope() { profile.Leave(); }
+	};
+public:
+	Data GetAndResetData();
+};
+
+
+#define OPENMPT_PROFILE_SCOPE(cat, name) \
+	static Profile OPENMPT_PROFILE_VAR(cat, name);\
+	Profile::Scope OPENMPT_PROFILE_SCOPE_VAR(OPENMPT_PROFILE_VAR); \
+/**/
+
+
+#define OPENMPT_PROFILE_FUNCTION(cat) OPENMPT_PROFILE_SCOPE(cat, __func__)
+
+
+#else // !USE_PROFILER
+
+
+class Profiler
+{
+public:
+	enum Category
+	{
+		CategoriesCount
+	};
+	static std::vector<std::string> GetCategoryNames() { return std::vector<std::string>(); } 
+public:
+	static void Update() { }
+	static std::string DumpProfiles() { return std::string(); }
+	static std::vector<double> DumpCategories() { return std::vector<double>(); }
+};
+#define OPENMPT_PROFILE_SCOPE(cat, name) do { } while(0)
+#define OPENMPT_PROFILE_FUNCTION(cat) do { } while(0)
+
+
+#endif // USE_PROFILER
+
+
+OPENMPT_NAMESPACE_END