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/**
bespoke synth, a software modular synthesizer
Copyright (C) 2021 Ryan Challinor (contact: awwbees@gmail.com)
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
**/
//
// Profiler.cpp
// modularSynth
//
// Created by Ryan Challinor on 2/28/14.
//
//
#include "Profiler.h"
#include "SynthGlobals.h"
#if BESPOKE_WINDOWS
#include <intrin.h>
#else
#include <chrono>
#endif
Profiler::Cost Profiler::sCosts[];
bool Profiler::sEnableProfiler = false;
namespace
{
static inline uint64_t rdtscp(uint32_t& aux)
{
//@TODO(Noxy): Why is windows treated differently here? Doesn't std::chrono::high_resolution_clock::now work on windows?
#if BESPOKE_WINDOWS
unsigned __int64 i;
unsigned int ui;
i = __rdtscp(&ui);
//printf_s("%I64d ticks\n", i);
//printf_s("TSC_AUX was %x\n", ui);
return i;
#else
std::chrono::high_resolution_clock::time_point time_point = std::chrono::high_resolution_clock::now();
return time_point.time_since_epoch().count();
#endif
}
}
Profiler::Profiler(const char* name, uint32_t hash)
{
if (sEnableProfiler)
{
for (int i = 0; i < PROFILER_MAX_TRACK; ++i)
{
if (sCosts[i].mHash == hash)
{
mIndex = i;
break;
}
if (sCosts[i].mName[0] == 0)
{
mIndex = i;
sCosts[i].mName = name;
sCosts[i].mHash = hash;
break;
}
}
uint32_t aux;
mTimerStart = rdtscp(aux);
//struct timespec t;
//clock_gettime(CLOCK_MONOTONIC, &t);
//mTimerStart = t.tv_sec * 1000000000 + t.tv_nsec;
}
}
Profiler::~Profiler()
{
if (sEnableProfiler)
{
uint32_t aux;
sCosts[mIndex].mFrameCost += rdtscp(aux) - mTimerStart;
//struct timespec t;
//clock_gettime(CLOCK_MONOTONIC, &t);
//unsigned long long timerEnd = t.tv_sec * 1000000000 + t.tv_nsec;
//sCosts[mIndex].mFrameCost += timerEnd - mTimerStart;
}
}
//static
void Profiler::PrintCounters()
{
//bool printedBreak = false;
for (int i = 0; i < PROFILER_MAX_TRACK; ++i)
{
if (sCosts[i].mName[0] == 0)
break;
/*if (sCosts[i].mFrameCost > 500)
{
if (!printedBreak)
{
ofLog() << "******* PrintCounters():";
printedBreak = true;
}
ofLog() << sCosts[i].mName << " " << sCosts[i].mFrameCost << " us";
}*/
sCosts[i].EndFrame();
}
}
//static
void Profiler::Draw()
{
if (!sEnableProfiler)
return;
ofPushMatrix();
ofTranslate(30, 70);
ofPushStyle();
ofFill();
ofSetColor(0, 0, 0, 140);
//ofRect(-5,-15,600,sCosts.size()*15+10);
long entireFrameUs = GetSafeFrameLengthNanoseconds();
for (int i = 0; i < PROFILER_MAX_TRACK; ++i)
{
if (sCosts[i].mName[0] == 0)
break;
const Cost& cost = sCosts[i];
long maxCost = cost.MaxCost();
ofSetColor(255, 255, 255);
gFont.DrawString(std::string(sCosts[i].mName) + ": " + ofToString(maxCost / 1000), 13, 0, 0);
if (maxCost > entireFrameUs)
ofSetColor(255, 0, 0);
else
ofSetColor(0, 255, 0);
ofRect(250, -10, (float)maxCost / entireFrameUs * (ofGetWidth() - 300) * .1f, 10);
ofTranslate(0, 15);
}
ofPopStyle();
ofPopMatrix();
}
//static
long Profiler::GetSafeFrameLengthNanoseconds()
{
//using about 70% of the length of buffer size doing processing seems to be safe
//for avoiding starvation issues
return long((gBufferSize / float(gSampleRate)) * 1000000000 * .7f);
}
//static
void Profiler::ToggleProfiler()
{
sEnableProfiler = !sEnableProfiler;
for (int i = 0; i < PROFILER_MAX_TRACK; ++i)
sCosts[i].mName[0] = 0;
}
void Profiler::Cost::EndFrame()
{
mHistory[mHistoryIdx] = mFrameCost;
mFrameCost = 0;
++mHistoryIdx;
if (mHistoryIdx >= PROFILER_HISTORY_LENGTH)
mHistoryIdx = 0;
}
unsigned long long Profiler::Cost::MaxCost() const
{
unsigned long long maxCost = 0;
for (int i = 0; i < PROFILER_HISTORY_LENGTH; ++i)
maxCost = MAX(maxCost, mHistory[i]);
return maxCost;
}
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