view Discovery/Src/timer.c @ 222:9b4b3decd9ba div-fixes-3

Bugfix: correct presentation error in tissues custom view The green vertical line in the N2/He bars show the inspired partial pressures of the respective gasses. Obviously, the tissue partial pressure is always lower on an initial descent, than the inspired partial pressure of the respective gas. Further, when for a given depth, the inspired partial pressure is equal to the tissue partial pressure, the tissue gets fully saturated, so the bars stop at the green line. For N2, a simple presentation error was present. As the body is always saturated with about 75% of N2 (according to the Buelmann algorithm), the tissue N2 was shifted left for that amount, but the inspired N2 line was not. So, the N2 green vertical line was too far to the right. Corrected this. Signed-off-by: Jan Mulder <jlmulder@xs4all.nl>
author Jan Mulder <jlmulder@xs4all.nl>
date Fri, 29 Mar 2019 14:00:43 +0100
parents f11f0bf6ef2d
children 90e65971f15d
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///////////////////////////////////////////////////////////////////////////////
/// -*- coding: UTF-8 -*-
///
/// \file   Discovery/Src/timer.c
/// \brief  Contains timer related functionality like stopwatch and security stop
/// \author Peter Ryser & heinrichs weikamp gmbh
/// \date   5. Feb.2015 (maybe)
///
/// \details
///
/// $Id$
///////////////////////////////////////////////////////////////////////////////
/// \par Copyright (c) 2014-2018 Heinrichs Weikamp gmbh
///
///     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/>.
//////////////////////////////////////////////////////////////////////////////

#include "data_central.h"

static long stopWatchTime_Second = 0;
static _Bool bStopWatch = false;
static float stopWatchAverageDepth_Meter = 0.0f;
static long safetyStopCountDown_Second = 0;

void timer_init(void)
{
  stopWatchTime_Second = 0;
  stopWatchAverageDepth_Meter = 0.0f;
  bStopWatch = true;
  safetyStopCountDown_Second = 0;

}

void timer_UpdateSecond(_Bool checkOncePerSecond)
{
    static int last_second = -1;
    static _Bool bSafetyStop = false;
    static float last_depth_meter = 0;

    if(checkOncePerSecond)
    {
        int now =  current_second();
        if( last_second == now)
            return;
        last_second = now;
    }

    /** Stopwatch **/
    if(bStopWatch && stateUsed->lifeData.depth_meter > 1)
    {
        if((stopWatchTime_Second == 0) && (stateUsed->lifeData.dive_time_seconds >= 1))
        {
            stopWatchTime_Second = stateUsed->lifeData.dive_time_seconds - 1;
            stopWatchAverageDepth_Meter = stateUsed->lifeData.average_depth_meter * (stopWatchTime_Second - 1) / stopWatchTime_Second;
        }
        else
        {
            stopWatchAverageDepth_Meter = (stopWatchAverageDepth_Meter * stopWatchTime_Second + stateUsed->lifeData.depth_meter)/ (stopWatchTime_Second + 1);
            stopWatchTime_Second++;
        }
    }

    /** SafetyStop **/
    float depthToStopSafetyStopCount;
    if(settingsGetPointer()->safetystopDuration && (stateUsed->lifeData.max_depth_meter > 10.0f) && (stateUsed->lifeData.dive_time_seconds > 60))
    {

        //No deco when 10 meters are crossed from below => Activate SecurityStop
        if( last_depth_meter > 10.0f && stateUsed->lifeData.depth_meter <= 10.0f)
        {
            if(stateUsed->diveSettings.deco_type.ub.standard == GF_MODE)
            {
                if(stateUsed->decolistBuehlmann.output_ndl_seconds >  0)
                    bSafetyStop = true;
            }
            else
            {
                if(stateUsed->decolistVPM.output_ndl_seconds >  0)
                    bSafetyStop = true;
            }
        }

        //Countdown starts at 5 meters
        if(bSafetyStop && (stateUsed->lifeData.depth_meter - 0.0001f <= (settingsGetPointer()->safetystopDepth) ))
        {
            if(safetyStopCountDown_Second == 0)
            {
                safetyStopCountDown_Second = (settingsGetPointer()->safetystopDuration) * 60;
            }
            else
                safetyStopCountDown_Second--;
        }

        // after safetystopDuration minutes or below 3 (2) meter safetyStop is disabled
        if(settingsGetPointer()->safetystopDepth == 3)
            depthToStopSafetyStopCount = 1.999f; // instead of 2
        else
            depthToStopSafetyStopCount = 2.999f;// instead of 3

        if((safetyStopCountDown_Second == 1) || (stateUsed->lifeData.depth_meter <= depthToStopSafetyStopCount))
        {
            bSafetyStop = false;
            safetyStopCountDown_Second = 0;
        }
    }
    else
    {
        bSafetyStop = false;
        safetyStopCountDown_Second = 0;
    }
    last_depth_meter = stateUsed->lifeData.depth_meter;
}


void timer_Stopwatch_Restart(void)
{
  stopWatchTime_Second = 1;
  stopWatchAverageDepth_Meter = stateUsed->lifeData.depth_meter;
  bStopWatch = true;
}

void timer_Stopwatch_Stop(void)
{
   bStopWatch = false;
}

long timer_Stopwatch_GetTime(void)
{
  return stopWatchTime_Second;
}

float timer_Stopwatch_GetAvarageDepth_Meter(void)
{
  return stopWatchAverageDepth_Meter;
}

long timer_Safetystop_GetCountDown(void)
{
  return safetyStopCountDown_Second;
}

uint8_t timer_Safetystop_GetDepthUpperLimit(void)
{
    if(settingsGetPointer()->safetystopDepth == 3)
        return 2;
    else
        return 3;
}