Add SwiftShader source to repo

Oct 6 code drop from Transgaming
Review URL: https://chromereviews.googleplex.com/3846015

src/Main/Config.cpp

diff --git a/src/Main/Config.cpp b/src/Main/Config.cpp
new file mode 100644
index 0000000..4d0a4cf
--- /dev/null
+++ b/src/Main/Config.cpp
@@ -0,0 +1,74 @@
+// SwiftShader Software Renderer
+//
+// Copyright(c) 2005-2011 TransGaming Inc.
+//
+// All rights reserved. No part of this software may be copied, distributed, transmitted,
+// transcribed, stored in a retrieval system, translated into any human or computer
+// language by any means, or disclosed to third parties without the explicit written
+// agreement of TransGaming Inc. Without such an agreement, no rights or licenses, express
+// or implied, including but not limited to any patent rights, are granted to you.
+//
+
+#include "Config.hpp"
+
+#include "Thread.hpp"
+#include "Timer.hpp"
+
+#if PERF_PROFILE
+Profiler profiler;
+
+Profiler::Profiler()
+{
+	reset();
+}
+
+void Profiler::reset()
+{
+	framesSec = 0;
+	framesTotal = 0;
+	FPS = 0;
+	
+	for(int i = 0; i < PERF_TIMERS; i++)
+	{
+		cycles[i] = 0;
+	}
+
+	ropOperations = 0;
+	ropOperationsTotal = 0;
+	ropOperationsFrame = 0;
+	
+	texOperations = 0;
+	texOperationsTotal = 0;
+	texOperationsFrame = 0;
+	
+	compressedTex = 0;
+	compressedTexTotal = 0;
+	compressedTexFrame = 0;
+};
+
+void Profiler::nextFrame()
+{
+	ropOperationsFrame = sw::atomicExchange(&ropOperations, 0);
+	texOperationsFrame = sw::atomicExchange(&texOperations, 0);
+	compressedTexFrame = sw::atomicExchange(&compressedTex, 0);
+
+	ropOperationsTotal += ropOperationsFrame;
+	texOperationsTotal += texOperationsFrame;
+	compressedTexTotal += compressedTexFrame;
+
+	static double fpsTime = sw::Timer::seconds();
+
+	double time = sw::Timer::seconds();
+	double delta = time - fpsTime;
+	framesSec++;
+
+	if(delta > 1.0)
+	{
+		FPS = framesSec / delta;
+
+		fpsTime = time;
+		framesTotal += framesSec;
+		framesSec = 0;
+	}
+}
+#endif
\ No newline at end of file