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/*
* The ManaPlus Client
* Copyright (C) 2018-2019 The ManaPlus Developers
*
* This file is part of The ManaPlus Client.
*
* 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 2 of the License, or
* 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/>.
*/
#include "utils/perfstat.h"
#include "utils/cast.h"
#include "logger.h"
#include "debug.h"
PerfStats perfStats[PERFSTAT_MAX];
size_t perfFrameId = 0;
size_t prevPerfFrameId = PERFSTAT_MAX;
int *perfFrame = &perfStats[perfFrameId].ticks[0];
PerfStats worstFrameStats;
int worstTime = -1;
int skipPerfFrames = -1;
namespace Perf
{
void init()
{
logger->log("perf stats init");
worstTime = -1;
perfFrameId = 0;
prevPerfFrameId = 0;
for (size_t f = 0; f < PERFSTAT_LAST_STAT; f ++)
{
worstFrameStats.ticks[f] = 0;
}
for (size_t f = 0; f < PERFSTAT_MAX; f ++)
{
PerfStats &perf = perfStats[f];
for (size_t d = 0; d < PERFSTAT_LAST_STAT; d ++)
{
perf.ticks[d] = 0;
}
}
skipPerfFrames = 0;
}
void nextFrame()
{
if (skipPerfFrames > 0)
{
skipPerfFrames --;
// logger->log("skip frames: %d", skipPerfFrames);
return;
}
else if (skipPerfFrames < 0)
{
return;
}
prevPerfFrameId = perfFrameId;
perfFrameId ++;
if (perfFrameId >= PERFSTAT_MAX)
{
perfFrameId = 0;
selectWorstFrame();
}
perfFrame = &perfStats[perfFrameId].ticks[0];
}
void selectWorstFrame()
{
int time = worstTime;
int index = -1;
for (size_t f = 0; f < PERFSTAT_MAX; f ++)
{
if (f == perfFrameId)
continue;
const int time1 = Perf::getTime(f, PERFSTAT_FPS_STAT - 1);
if (time1 > time)
{
time = time1;
index = CAST_S32(f);
}
}
if (index >= 0)
{
worstFrameStats = perfStats[index];
logger->log("worst frame: %d, %d",
perfStats[index].ticks[PERFSTAT_FPS_STAT - 1] -
perfStats[index].ticks[0],
worstFrameStats.ticks[PERFSTAT_FPS_STAT - 1] -
worstFrameStats.ticks[0]);
worstTime = time;
}
}
int getTime(const size_t frameId,
const size_t counterId)
{
const PerfStats &perf = perfStats[frameId];
const int val1 = perf.ticks[0];
const int val2 = perf.ticks[counterId];
if (val2 >= val1)
return val2 - val1;
return val1 - val2;
}
int getWorstTime(const size_t counterId)
{
const int val1 = worstFrameStats.ticks[0];
const int val2 = worstFrameStats.ticks[counterId];
if (val2 >= val1)
return val2 - val1;
return val1 - val2;
}
} // namespace Perf
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