// 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"

Profiler profiler;

Profiler::Profiler()
{
	reset();
}

void Profiler::reset()
{
	framesSec = 0;
	framesTotal = 0;
	FPS = 0;
	
	#if PERF_PROFILE
		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;
	#endif
};

void Profiler::nextFrame()
{
	#if PERF_PROFILE
		ropOperationsFrame = sw::atomicExchange(&ropOperations, 0);
		texOperationsFrame = sw::atomicExchange(&texOperations, 0);
		compressedTexFrame = sw::atomicExchange(&compressedTex, 0);

		ropOperationsTotal += ropOperationsFrame;
		texOperationsTotal += texOperationsFrame;
		compressedTexTotal += compressedTexFrame;
	#endif

	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;
	}
}