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2021-06-09 f143e5ece742a275d1e360c55e829d21e706b26d

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#include "StdAfx.h"
#include "AutoLightControl.h"
#include "CHImageControls/CHImageProcess.h"
 
CAutoLightControl::CAutoLightControl(int nIndex) : m_nIndex(nIndex), CWorkThreadPools(1)
{
}
 
CAutoLightControl::~CAutoLightControl(void)
{
}
 
BOOL CAutoLightControl::ProcessAutoLight(const SAutoLightParam& controlParam)
{
    CAutoLightThreadData *pData = new CAutoLightThreadData(this);
    if (pData==NULL) return FALSE;
    pData->controlParam = controlParam;
    return CreateWorkThread(pData);
}
 
double CAutoLightControl::GetAverageValue(BYTE* pImage, int nWidth, int nHeight, int nWidthStep)
{
    if (pImage==NULL || nWidth<=0 || nHeight<=0) return 0.0;
 
    CCHImageData dataImage;
    dataImage.CreateImage(nWidth, nHeight);
    char* pProcessImage = dataImage.GetImageBuffer();
    CopyMemory(pProcessImage, pImage, nWidth*nHeight);
 
    double dAvgValue = 0.0;
    CCHImageProcess::ImageAverage(&dataImage, dAvgValue);
    
    return dAvgValue;
}
 
void CAutoLightControl::WorkThreadProcess(PVOID pParameter)
{
    if (m_pALC2P==NULL) return;
 
    CAutoLightThreadData *pData = static_cast<CAutoLightThreadData*>(pParameter);
    if (pData==NULL) return;
 
    if (pData->controlParam.bAutoProcess==FALSE)
    {
        m_pALC2P->IALC2P_ProcessEnd(m_nIndex, LightNoProcess, 0.0, 0);
        return;
    }
 
    BOOL bFirstIter = TRUE;
 
    int nProcessCount = 0;
 
 
    double dPrevLightLevel = 1;
    double dCurLightLevel = 1;
    double dControlLightLevel = 1;
    double dCurLight = -1.0;
    double dPrevLight = -1.0;
    double dTargetLight = pData->controlParam.dTargetMin + (pData->controlParam.dTargetMax-pData->controlParam.dTargetMin) / 2.0;
 
    int nResultCode = LightChangeLevel;
 
    do 
    {
        if (m_pALC2P->IALC2P_GetCurrentLightLevel(m_nIndex, dCurLight, dCurLightLevel)==FALSE) // ÇöÀç Á¶¸íÀÇ °ª°ú ÇöÀç ¹à±â¸¦ ¾Ë¾Æ¿È.
        {
            m_pALC2P->IALC2P_ProcessEnd(m_nIndex, LightProcessFail, 0.0, 0);
            return;
        }
 
        if ((++nProcessCount) > pData->controlParam.nProcessMax) // ÃÖ´ë Ä«¿îÅ͸¦ ³Ñ¾î°¬³ª?
        {
            m_pALC2P->IALC2P_ProcessEnd(m_nIndex, LightProcessFail, dCurLight, dCurLightLevel);
            return;
        }
 
        if (dCurLight < pData->controlParam.dTargetMin) // Å¸°Ù º¸´Ù ¾îµÎ¿î°¡?
        {
            if (dCurLightLevel >= pData->controlParam.dLightLevelMax)  // ÇöÀç Á¶¸íÀÇ °ªÀÌ ÃÖ´ë °ªº¸´Ù Å©°Å³ª °°Àº°¡?
            {
                m_pALC2P->IALC2P_ProcessEnd(m_nIndex, LightLevelDark, dCurLight, dCurLightLevel); // ³Ê¹« ¾îµÎ¿ö¼­ ½ÇÆÐ!
                return;
            }
            else 
            {
                if (bFirstIter)
                {
                    dControlLightLevel = int (dCurLightLevel * 2.0);
                    bFirstIter = FALSE;
                }
                else
                {
                    double dLineA = (dCurLight - dPrevLight) / (dCurLightLevel - dPrevLightLevel);
                    double dLineB = dCurLight - (dLineA * dCurLightLevel);
                    dControlLightLevel = int( (dTargetLight - dLineB) / dLineA );
 
                    dPrevLightLevel = dCurLightLevel;
                    dPrevLight = dCurLight;
                }
 
                if (dControlLightLevel >= pData->controlParam.dLightLevelMax)
                {
                    dControlLightLevel = int( pData->controlParam.dLightLevelMax );
                }
                nResultCode = LightChangeLevel;
            }
        }
        else if (dCurLight > pData->controlParam.dTargetMax) // Å¸°Ù º¸´Ù ¹àÀº°¡?
        {
            if (dCurLightLevel <= pData->controlParam.dLightLevelMin) // ÇöÀç Á¶¸íÀÇ °ªÀÌ ÃÖ¼Ò °ªº¸´Ù À۰ųª °°Àº°¡?
            {
                m_pALC2P->IALC2P_ProcessEnd(m_nIndex, LightLevelBright, dCurLight, dCurLightLevel); // ³Ê¹« ¹à¾Æ¼­ ½ÇÆÐ
                return;
            }
            else 
            {
                if (bFirstIter)
                {
                    dControlLightLevel = int (dCurLightLevel / 2.0);
                    bFirstIter = FALSE;
                }
                else
                {
                    double dLineA = (dCurLight - dPrevLight) / (dCurLightLevel - dPrevLightLevel);
                    double dLineB = dCurLight - (dLineA * dCurLightLevel);
                    dControlLightLevel = int( (dTargetLight - dLineB) / dLineA );
 
                    dPrevLightLevel = dCurLightLevel;
                    dPrevLight = dCurLight;
                }
 
                if (dControlLightLevel <= pData->controlParam.dLightLevelMin)
                {
                    dControlLightLevel = int( pData->controlParam.dLightLevelMin );
                }
                nResultCode = LightChangeLevel;
            }
        }
        else // Å¸ÄÏ °ª »çÀ̸é Á¶Àý ¼º°ø!
        {
            m_pALC2P->IALC2P_ProcessEnd(m_nIndex, LightProcessComplete, dCurLight, dCurLightLevel);
 
            m_pALC2P->IALC2P_CurrentResult(m_nIndex, nProcessCount++, 100, dCurLight, dCurLightLevel);
 
            return;
        }
 
        // Á¶Àý °¡´ÉÇÑ ¹üÀ§¸é Á¶Àý ¼öÇà
        if (dControlLightLevel>=pData->controlParam.dLightLevelMin && dControlLightLevel<=pData->controlParam.dLightLevelMax)
        {
            m_pALC2P->IALC2P_ChangeLightLevel(m_nIndex, dControlLightLevel);
        }
 
        // ÇöÀç ·çÇÁÀÇ °á°ú Àü¼Û.
        m_pALC2P->IALC2P_CurrentResult(m_nIndex, nProcessCount, nResultCode, dCurLight, dCurLightLevel);
 
        // ±â´Ù¸².
        ::Sleep(pData->controlParam.nControlDealy);
 
    } while (TRUE);
 
}