1 files changed, 178 insertions, 0 deletions
diff --git a/plugins/Utils/mir_profiler.cpp b/plugins/Utils/mir_profiler.cpp
new file mode 100644
index 0000000000..b788fd2dd2
--- /dev/null
+++ b/plugins/Utils/mir_profiler.cpp
@@ -0,0 +1,178 @@
+/*
+Copyright (C) 2005 Ricardo Pescuma Domenecci
+
+This is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public
+License as published by the Free Software Foundation; either
+version 2 of the License, or (at your option) any later version.
+
+This 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
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with this file; see the file license.txt.  If
+not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.  
+*/
+
+
+// Disable "...truncated to '255' characters in the debug information" warnings
+#pragma warning(disable: 4786)
+
+
+#include "mir_profiler.h"
+#include "mir_log.h"
+
+#include <stdio.h>
+
+
+MProfiler::Block MProfiler::root;
+MProfiler::Block * MProfiler::current = &MProfiler::root;
+
+
+MProfiler::Block::Block()
+{
+	parent = NULL;
+	memset(&total, 0, sizeof(total));
+	started = false;
+}
+
+
+MProfiler::Block::~Block()
+{
+	Reset();
+}
+
+
+void MProfiler::Block::Reset()
+{
+	for(std::map<std::string, MProfiler::Block *>::iterator it = children.begin(); 
+			it != children.end(); ++it)
+		delete it->second;
+	children.clear();
+
+	memset(&total, 0, sizeof(total));
+	started = false;
+}
+
+
+void MProfiler::Block::Start()
+{
+	if (started)
+		return;
+
+	QueryPerformanceCounter(&start);
+	last_step = start;
+	started = true;
+}
+
+
+void MProfiler::Block::Step(const char *name)
+{
+	if (!started)
+		return;
+	
+	LARGE_INTEGER end;
+	QueryPerformanceCounter(&end);
+
+	GetChild(name)->total.QuadPart += end.QuadPart - last_step.QuadPart;
+
+	last_step = end;
+}
+
+
+void MProfiler::Block::Stop()
+{
+	if (!started)
+		return;
+	
+	LARGE_INTEGER end;
+	QueryPerformanceCounter(&end);
+
+	total.QuadPart += end.QuadPart - start.QuadPart;
+
+	started = false;
+}
+
+
+double MProfiler::Block::GetTimeMS() const
+{
+	LARGE_INTEGER frequency;
+	QueryPerformanceFrequency(&frequency);
+
+	return total.QuadPart * 1000. / frequency.QuadPart;
+}
+
+
+MProfiler::Block * MProfiler::Block::GetChild(const char *name)
+{
+	MProfiler::Block *ret = children[name];
+	if (ret == NULL)
+	{
+		ret = new MProfiler::Block();
+		ret->name = name;
+		ret->parent = this;
+		children[name] = ret;
+	}
+	return ret;
+}
+
+
+void MProfiler::Reset()
+{
+	root.Reset();
+}
+
+void MProfiler::Start(const char *name)
+{
+	current = current->GetChild(name);
+	current->Start();
+}
+
+void MProfiler::Step(const char *name)
+{
+	current->Step(name);
+}
+
+void MProfiler::End()
+{
+	current->Stop();
+
+	if (current->parent != NULL)
+	{
+		current = current->parent;
+		QueryPerformanceCounter(&current->last_step);
+	}
+}
+
+void MProfiler::Dump(const char *module)
+{
+	Dump(module, "", &root, -1, -1);
+}
+
+
+void MProfiler::Dump(const char *module, std::string prefix, Block *block, double parent, double total)
+{
+	for(std::map<std::string, MProfiler::Block *>::iterator it = block->children.begin(); 
+			it != block->children.end(); ++it)
+	{
+		Block *child = it->second;
+		double elapsed = child->GetTimeMS();
+
+		if (total > 0)
+		{
+			mlog(module, "Profiler", "%s%-20s\t%5.1lf\t[%3.0lf%%]\t[%3.0lf%%]", prefix.c_str(), it->first.c_str(), 
+				elapsed, elapsed / parent * 100, elapsed / total * 100);
+		}
+		else
+		{
+			mlog(module, "Profiler", "%s%-20s\t%5.1lf", prefix.c_str(), it->first.c_str(), 
+				elapsed);
+		}
+
+		Dump(module, prefix + "   ", child, elapsed, total > 0 ? total : elapsed);
+	}
+}
+