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Buelmann: new implementation for ceiling Since my first functional fix in the ceiling computation in commit ceecabfddb57, I noticed that the computation used a linear search, that became rather computational expensive after that commit. The simple question is: why not a binary search? So, this commit implements the binary search. But there is a long story attached to this. Comparing ceiling results from hwOS and this OSTC4 code were very different. Basically, the original OSTC4 algorithm computed the ceiling using the same GFlow to GFhigh slope, in such a way, that the ceiling was in sync with the presented deco stops, where the hwOS code presents a GFhigh based ceiling. This said, it is more logical when the OSTC4 and hwOS code give similar results. This new recursive algorithm gives very similar results for the ceiling compared to hwOS. To be complete here, the Buelmann ceiling is the depth to which you can ascend, so that the leading tissue reaches GFhigh. This also explains why the deepest deco stop is normally deeper than the ceiling (unless one dives with GF like 80/80). The code implemented here is rather straightforward recursion. Signed-off-by: Jan Mulder <jlmulder@xs4all.nl>
author Jan Mulder <jlmulder@xs4all.nl>
date Thu, 11 Apr 2019 17:48:48 +0200
parents f11f0bf6ef2d
children b90ddf57f7f1
line wrap: on
line source

///////////////////////////////////////////////////////////////////////////////
/// -*- coding: UTF-8 -*-
///
/// \file   Discovery/Src/tInfoLog.c
/// \brief  Main Template file for Menu Page Deco
/// \author heinrichs weikamp gmbh
/// \date   31-July-2014
///
/// \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/>.
//////////////////////////////////////////////////////////////////////////////

/* Includes ------------------------------------------------------------------*/
#include "tInfoLog.h"

#include "gfx_fonts.h"
#include "logbook.h"
#include "show_logbook.h"
#include "tHome.h"
#include "tInfo.h"
#include "tMenu.h"
#include "unit.h"

/* Exported variables --------------------------------------------------------*/

/* Private types -------------------------------------------------------------*/
typedef struct
{
    uint8_t		page;
    uint8_t		line;
    uint8_t		linesAvailableForPage;
    uint8_t		modeFlipPages;
    uint8_t		maxpages;
} SInfoLogMemory;

/* Private variables ---------------------------------------------------------*/
GFX_DrawCfgScreen	INFOLOGscreen;
GFX_DrawCfgScreen	*pMenuCursor, *pMenuCursorDesignSolo;
GFX_DrawCfgWindow	INFOLOGwindow;

SInfoLogMemory infolog;

/* Private function prototypes -----------------------------------------------*/
void tInfoLog_BuildAndShowNextPage(void);
void tInfoLog_nextLine(void);
void showLog(void);
void showNextLogPage(void);
void stepBackInfo(void);
void stepForwardInfo(void);
void showLogExit(void);

/* Exported functions --------------------------------------------------------*/
void tInfoLog_init(void)
{
    INFOLOGscreen.FBStartAdress = 0;
    INFOLOGscreen.ImageHeight = 480;
    INFOLOGscreen.ImageWidth = 800;
    INFOLOGscreen.LayerIndex = 1;

    INFOLOGwindow.Image = &INFOLOGscreen;
    INFOLOGwindow.WindowNumberOfTextLines = 6;
    INFOLOGwindow.WindowLineSpacing = 65;
    INFOLOGwindow.WindowTab = 400;
    INFOLOGwindow.WindowX0 = 20;
    INFOLOGwindow.WindowX1 = 779;
    if(!settingsGetPointer()->FlipDisplay)
    {
    	INFOLOGwindow.WindowY0 = 4 + 25;
    	INFOLOGwindow.WindowY1 = 390 + 25;
    }
    else
    {
    	INFOLOGwindow.WindowY0 = 479 - 390;
    	INFOLOGwindow.WindowY1 = 479 - 25;
    }
}


void openInfoLogLastDive(void)
{
    infolog.page = 0;
    SLogbookHeader logbookHeader;
    if(logbook_getHeader(0,&logbookHeader))
    {
        set_globalState(StILOGSHOW); // all the rest with zeros
        infolog.page = 1;
        infolog.line = 1;
        show_logbook_test(1, 0);
    }
    else
        openLog(0);
}


void openLog(_Bool recallKeepPage)
{
    if(recallKeepPage && infolog.page)
        infolog.page--;
    else
        infolog.page = 0;

    infolog.modeFlipPages = 1;
    set_globalState_Log_Page(infolog.page);
    infolog.maxpages = (logbook_getNumberOfHeaders() + 5) / 6;
    tInfoLog_BuildAndShowNextPage();

    pMenuCursor = get_PointerMenuCursorScreen();
    pMenuCursorDesignSolo = get_PointerMenuCursorDesignSoloScreen();

    change_CLUT_entry(CLUT_MenuLineSelectedSides, 		CLUT_InfoPageLogbook);
    change_CLUT_entry(CLUT_MenuLineSelectedSeperator, CLUT_InfoPageLogbook);

    //GFX_ResetLayer(TOP_LAYER);
    //GFX_ResetLayer(BACKGRD_LAYER);

    if(infolog.page == 255)
        GFX_SetFrameBottom((INFOLOGscreen.FBStartAdress), 0, 0, 800, 480);
    else
    {
//	very old: GFX_SetFrameBottom((pMenuCursor->FBStartAdress), 0, 0, 800, 390);
// no, set cursor to firt line instead with tInfoLog_nextLine()		GFX_SetFrameBottom((pMenuCursorDesignSolo->FBStartAdress), 0, 25, 800, 390);
        tInfoLog_nextLine();
    }
}


void sendActionToInfoLogList(uint8_t sendAction)
{
    switch(sendAction)
    {
    case ACTION_BUTTON_ENTER:
        stepForwardInfo();
        break;
    case ACTION_BUTTON_NEXT:

        if(infolog.modeFlipPages)
        {
            tInfoLog_BuildAndShowNextPage();
//				GFX_SetFrameBottom((pMenuCursor->FBStartAdress), 0, 25, 800, 390);
        }
        else
            tInfoLog_nextLine();
        break;
    case ACTION_TIMEOUT:
    case ACTION_MODE_CHANGE:
    case ACTION_BUTTON_BACK:
        stepBackInfo();
        break;
    default:
        break;
    case ACTION_IDLE_TICK:
    case ACTION_IDLE_SECOND:
        break;
    }
}


void sendActionToInfoLogShow(uint8_t sendAction)
{
    switch(sendAction)
    {
    case ACTION_BUTTON_ENTER:
        break;
    case ACTION_BUTTON_NEXT:
        showNextLogPage();
        break;
    case ACTION_TIMEOUT:
    case ACTION_MODE_CHANGE:
    case ACTION_BUTTON_BACK:
        if(get_globalState() == StILOGSHOW) // no page nor line
        {
            openLog(1);
        }
        else
        {
            showLogExit();
        }
        show_logbook_exit();
        break;
    default:
        break;
    case ACTION_IDLE_TICK:
    case ACTION_IDLE_SECOND:
        break;
    }
}


/* Private functions ---------------------------------------------------------*/

void exitLog(void)
{
    //set_globalState_tHome();
    exitInfo();
    releaseFrame(15,INFOLOGscreen.FBStartAdress);
}


void stepBackInfo(void)
{
    if(infolog.modeFlipPages == 0)
    {
        infolog.line = 0;
        infolog.modeFlipPages = 1;

        if(!settingsGetPointer()->FlipDisplay)
        {
        	GFX_SetFrameBottom(pMenuCursorDesignSolo->FBStartAdress, 0, 25, 800, 390);
        }
        else
        {
        	GFX_SetFrameBottom(pMenuCursorDesignSolo->FBStartAdress, 0, 65, 800, 390);
        }

    }
    else
        exitLog();
}


void stepForwardInfo(void)
{
    if(infolog.modeFlipPages == 1)
    {
        tInfoLog_nextLine();
    }
    else
        showLog();
}


void tInfoLog_BuildAndShowNextPage(void)
{
    char text[MAX_PAGE_TEXTSIZE];
    uint16_t textPointer = 0;
    SLogbookHeader logbookHeader;
//	uint16_t divetime = logbookHeader.diveTimeMinutes;
//	uint16_t maxDepth =  logbookHeader.maxDepth/100;
    int i = 0;
    uint8_t date[2], month,day;

    if(INFOLOGscreen.FBStartAdress)
        releaseFrame(15,INFOLOGscreen.FBStartAdress);
    INFOLOGscreen.FBStartAdress = getFrame(15);

    infolog.page += 1;
    infolog.linesAvailableForPage = 0;

    if((infolog.page < 1) || (infolog.page > 43)) /* max with 256 entries */
        infolog.page = 1;


    text[0] = '\001';
    text[1] = TXT_Logbook;
    text[2] = 0;
    gfx_write_topline_simple(&INFOLOGscreen, text, CLUT_InfoPageLogbook);

    *text = 0;
    if(!logbook_getHeader((infolog.page - 1) * 6,&logbookHeader))
    {
        infolog.page = 1;
        if(!logbook_getHeader((infolog.page - 1) * 6,&logbookHeader))
        {
            infolog.page = 255;
            infolog.linesAvailableForPage = 0;
            text[0] = TXT_LogbookEmpty;
            text[1] = 0;
        }
    }

    if((*text == 0) && (infolog.maxpages > 1))
    {
        snprintf(text,8, "\002" "%u/%u", infolog.page, infolog.maxpages);
        gfx_write_topline_simple(&INFOLOGscreen, text, CLUT_InfoPageLogbook);
        *text = 0;
    }

    if(*text == 0)
    {
        infolog.line = 0;
        textPointer = 0;
        if(settingsGetPointer()->date_format == DDMMYY)
        {
            day = 0;
            month = 1;
        }
        else
        {
            day = 1;
            month = 0;
        }
        for(i = 0; i < 6; i++)
        {
            if(i)
            {
                if(!logbook_getHeader(((infolog.page - 1) * 6) + i, &logbookHeader))
                        break;
            }
            infolog.linesAvailableForPage += 1;
            uint16_t divetime = logbookHeader.diveTimeMinutes;
            uint16_t maxDepthMeter =  logbookHeader.maxDepth/100;
            uint16_t maxDepthSubmeter =  (logbookHeader.maxDepth - maxDepthMeter * 100)/10;
            uint16_t number = ((infolog.page - 1) * 6) + i + 1;
            if(settingsGetPointer()->logbookOffset)
            {
                if(number <= settingsGetPointer()->logbookOffset)
                    number = settingsGetPointer()->logbookOffset + 1 - number;
            }
            date[day] = logbookHeader.dateDay;
            date[month] = logbookHeader.dateMonth;

            text[textPointer++] = '\034';// monospaced space large size mode
            textPointer += snprintf(&text[textPointer], 20,"\021%04u \020", number);
/*			if(number < 1000)
                textPointer += snprintf(&text[textPointer], 20,"\021%2u \020", number);
            else
                textPointer += snprintf(&text[textPointer], 20,"\021\016\016%3u \017\020", number);
*/
            textPointer += snprintf(&text[textPointer], 20,"%02d.%02d ",date[0],date[1]);
            textPointer += snprintf(&text[textPointer], 20,"%02d:%02d ",logbookHeader.timeHour,logbookHeader.timeMinute);
            switch(logbookHeader.decoModel)
            {
            case 1:
                textPointer += snprintf(&text[textPointer],20,"\016\016 GF  \017");
                break;
            case 2:
                textPointer += snprintf(&text[textPointer],20,"\016\016 VPM \017");
                break;
            default:
                textPointer += snprintf(&text[textPointer],20,"\016\016  *  \017");
                break;
            }

            if(settingsGetPointer()->nonMetricalSystem)
            {
                float maxDepthFeet = 0;
                maxDepthFeet = unit_depth_float(((float)logbookHeader.maxDepth)/100);
                textPointer += snprintf(&text[textPointer], 20,"%3.0f\016\016ft\017 ", maxDepthFeet);
            }
            else
            {
                textPointer += snprintf(&text[textPointer], 20,"%3d.%d\016\016m\017 ", maxDepthMeter,maxDepthSubmeter);
            }
            textPointer += snprintf(&text[textPointer], 20,"%3d'\n\r", divetime);
        }
    }
    GFX_write_string(&FontT48, &INFOLOGwindow, text,1);

    if(infolog.linesAvailableForPage > 1)
        tInfo_write_buttonTextline(&INFOLOGscreen, TXT2BYTE_ButtonBack,TXT2BYTE_ButtonEnter,TXT2BYTE_ButtonNext);
    else if(infolog.page == 255)
        tInfo_write_buttonTextline(&INFOLOGscreen, TXT2BYTE_ButtonBack,0,0);
    else
        tInfo_write_buttonTextline(&INFOLOGscreen, TXT2BYTE_ButtonBack,TXT2BYTE_ButtonEnter,0);

    GFX_SetFrameTop(INFOLOGscreen.FBStartAdress);
    set_globalState_Log_Page(infolog.page);
}


void tInfoLog_nextLine(void)
{
    if(infolog.linesAvailableForPage == 0)
        return;

    infolog.line += 1;
    if(infolog.line > infolog.linesAvailableForPage)
        infolog.line = 1;

    infolog.modeFlipPages = 0;

    if(!settingsGetPointer()->FlipDisplay)
    {
    	GFX_SetFrameBottom((pMenuCursor->FBStartAdress) + 65*2*(infolog.line - 1), 0, 25, 800, 390);
    }
    else
    {
    	GFX_SetFrameBottom((pMenuCursor->FBStartAdress)+ (390 - 65 *(infolog.line)) *2, 0, 480-390-25, 800, 390);
    }
}


void showLogExit(void)
{
    GFX_SetFrameTop(INFOLOGscreen.FBStartAdress);
    GFX_SetFrameBottom((pMenuCursor->FBStartAdress) + 65*2*(infolog.line - 1), 0, 25, 800, 390);
    set_globalState_Log_Page(infolog.page);
}


void showLog(void)
{
    uint8_t stepBack;

    if(infolog.page == 255)
        return;

    stepBack = (6 * (infolog.page - 1)) + infolog.line - 1;
    //build_logbook_test();
    show_logbook_test(1, stepBack);
}


void showNextLogPage(void)
{
    uint8_t stepBack;

    if(infolog.page == 255)
        return;

    stepBack = (6 * (infolog.page - 1)) + infolog.line - 1;
    //build_logbook_test();
    show_logbook_test(0, stepBack);
}