show() [2/2]

void CFastLED::show

(

uint8_t

scale

)

Update all our controllers with the current led colors, using the passed in brightness.

Parameters

scale

the brightness value to use in place of the stored value

Definition at line 107 of file FastLED.cpp.

                                 {
    fl::EngineEvents::onBeginFrame();
    while(m_nMinMicros && ((micros()-lastshow) < m_nMinMicros));
    lastshow = micros();
 
    // If we have a function for computing power, use it!
    if(m_pPowerFunc) {
        scale = (*m_pPowerFunc)(scale, m_nPowerData);
    }
 
    // static uninitialized gControllersData produces the smallest binary on attiny85.
    int length = 0;
    CLEDController *pCur = CLEDController::head();
 
    while(pCur && length < MAX_CLED_CONTROLLERS) {
        if (pCur->getEnabled()) {
            gControllersData[length] = pCur->beginShowLeds(pCur->size());
        } else {
            gControllersData[length] = nullptr;
        }
        length++;
        if (m_nFPS < 100) { pCur->setDither(0); }
        pCur = pCur->next();
    }
 
    pCur = CLEDController::head();
    for (length = 0; length < MAX_CLED_CONTROLLERS && pCur; length++) {
        if (pCur->getEnabled()) {
            pCur->showLedsInternal(scale);
        }
        pCur = pCur->next();
 
    }
 
    length = 0;  // Reset length to 0 and iterate again.
    pCur = CLEDController::head();
    while(pCur && length < MAX_CLED_CONTROLLERS) {
        if (pCur->getEnabled()) {
            pCur->endShowLeds(gControllersData[length]);
        }
        length++;
        pCur = pCur->next();
    }
    countFPS();
    fl::EngineEvents::onEndShowLeds();
    fl::EngineEvents::onEndFrame();
}

References CLEDController::beginShowLeds(), countFPS(), CLEDController::endShowLeds(), gControllersData, CLEDController::getEnabled(), CLEDController::head(), lastshow, m_nFPS, m_nMinMicros, m_nPowerData, m_pPowerFunc, MAX_CLED_CONTROLLERS, CLEDController::next(), fl::EngineEvents::onBeginFrame(), fl::EngineEvents::onEndFrame(), fl::EngineEvents::onEndShowLeds(), scale, CLEDController::setDither(), CLEDController::showLedsInternal(), and CLEDController::size().

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