FastLED.cpp

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#define FASTLED_INTERNAL
#include "FastLED.h"
#include "fl/singleton.h"
#include "fl/engine_events.h"
#include "fl/compiler_control.h"

 
#ifndef MAX_CLED_CONTROLLERS
#ifdef __AVR__
// if mega or leonardo, allow more controllers
#if defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__) || defined(__AVR_ATmega32U4__)
#define MAX_CLED_CONTROLLERS 16
#else
#define MAX_CLED_CONTROLLERS 8
#endif
#else
#define MAX_CLED_CONTROLLERS 64
#endif  // __AVR__
#endif  // MAX_CLED_CONTROLLERS
 
#if defined(__SAM3X8E__)
volatile uint32_t fuckit;
#endif
 
// Disable to fix build breakage.
// #ifndef FASTLED_DEFINE_WEAK_YEILD_FUNCTION
// #if defined(__AVR_ATtiny13__)
// // Arduino.h also defines this as a weak function on this platform.
// #define FASTLED_DEFINE_WEAK_YEILD_FUNCTION 0
// #else
// #define FASTLED_DEFINE_WEAK_YEILD_FUNCTION 1
// #endif
// #endif

extern "C" __attribute__((weak)) int atexit(void (* /*func*/ )()) { return 0; }
 
#ifdef FASTLED_NEEDS_YIELD
extern "C" void yield(void) { }
#endif
 
FASTLED_NAMESPACE_BEGIN
 
uint16_t cled_contoller_size() {
    return sizeof(CLEDController);
}
 
uint8_t get_brightness();

void *pSmartMatrix = NULL;
 
FL_DISABLE_WARNING_PUSH
FL_DISABLE_WARNING_GLOBAL_CONSTRUCTORS
 
CFastLED FastLED;  // global constructor allowed in this case.
 
FL_DISABLE_WARNING_POP
 
CLEDController *CLEDController::m_pHead = NULL;
CLEDController *CLEDController::m_pTail = NULL;
static uint32_t lastshow = 0;

uint32_t _frame_cnt=0;

uint32_t _retry_cnt=0;
 
// uint32_t CRGB::Squant = ((uint32_t)((__TIME__[4]-'0') * 28))<<16 | ((__TIME__[6]-'0')*50)<<8 | ((__TIME__[7]-'0')*28);
 
CFastLED::CFastLED() {
    // clear out the array of led controllers
    // m_nControllers = 0;
    m_Scale = 255;
    m_nFPS = 0;
    m_pPowerFunc = NULL;
    m_nPowerData = 0xFFFFFFFF;
    m_nMinMicros = 0;
}
 
int CFastLED::size() {
    return (*this)[0].size();
}
 
CRGB* CFastLED::leds() {
    return (*this)[0].leds();
}
 
CLEDController &CFastLED::addLeds(CLEDController *pLed,
                                  struct CRGB *data,
                                  int nLedsOrOffset, int nLedsIfOffset) {
    int nOffset = (nLedsIfOffset > 0) ? nLedsOrOffset : 0;
    int nLeds = (nLedsIfOffset > 0) ? nLedsIfOffset : nLedsOrOffset;
 
    pLed->init();
    pLed->setLeds(data + nOffset, nLeds);
    FastLED.setMaxRefreshRate(pLed->getMaxRefreshRate(),true);
    fl::EngineEvents::onStripAdded(pLed, nLedsOrOffset - nOffset);
    return *pLed;
}
 
// This is bad code. But it produces the smallest binaries for reasons
// beyond mortal comprehensions.
// Instead of iterating through the link list for onBeginFrame(), beginShowLeds()
// and endShowLeds(): store the pointers in an array and iterate through that.
//
// static uninitialized gControllersData produces the smallest binary on attiny85.
static void* gControllersData[MAX_CLED_CONTROLLERS];
 
void CFastLED::show(uint8_t scale) {
    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);
    }
 
 
    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();
    onEndFrame();
    fl::EngineEvents::onEndShowLeds();
}
 
void CFastLED::onEndFrame() {
    fl::EngineEvents::onEndFrame();
}
 
int CFastLED::count() {
    int x = 0;
    CLEDController *pCur = CLEDController::head();
    while( pCur) {
        ++x;
        pCur = pCur->next();
    }
    return x;
}
 
CLEDController & CFastLED::operator[](int x) {
    CLEDController *pCur = CLEDController::head();
    while(x-- && pCur) {
        pCur = pCur->next();
    }
    if(pCur == NULL) {
        return *(CLEDController::head());
    } else {
        return *pCur;
    }
}
 
void CFastLED::showColor(const struct CRGB & color, uint8_t scale) {
    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);
    }
 
    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++;
        pCur = pCur->next();
    }
 
    pCur = CLEDController::head();
    while(pCur && length < MAX_CLED_CONTROLLERS) {
        if(m_nFPS < 100) { pCur->setDither(0); }
        if (pCur->getEnabled()) {
            pCur->showColorInternal(color, scale);
        }
        pCur = pCur->next();
    }
 
    pCur = CLEDController::head();
    length = 0;  // Reset length to 0 and iterate again.
    while(pCur && length < MAX_CLED_CONTROLLERS) {
        if (pCur->getEnabled()) {
            pCur->endShowLeds(gControllersData[length]);
        }
        length++;
        pCur = pCur->next();
    }
    countFPS();
    onEndFrame();
}
 
void CFastLED::clear(bool writeData) {
    if(writeData) {
        showColor(CRGB(0,0,0), 0);
    }
    clearData();
}
 
void CFastLED::clearData() {
    CLEDController *pCur = CLEDController::head();
    while(pCur) {
        pCur->clearLedDataInternal();
        pCur = pCur->next();
    }
}
 
void CFastLED::delay(unsigned long ms) {
    unsigned long start = millis();
        do {
#ifndef FASTLED_ACCURATE_CLOCK
        // make sure to allow at least one ms to pass to ensure the clock moves
        // forward
        ::delay(1);
#endif
        show();
        yield();
    }
    while((millis()-start) < ms);
}
 
void CFastLED::setTemperature(const struct CRGB & temp) {
    CLEDController *pCur = CLEDController::head();
    while(pCur) {
        pCur->setTemperature(temp);
        pCur = pCur->next();
    }
}
 
void CFastLED::setCorrection(const struct CRGB & correction) {
    CLEDController *pCur = CLEDController::head();
    while(pCur) {
        pCur->setCorrection(correction);
        pCur = pCur->next();
    }
}
 
void CFastLED::setDither(uint8_t ditherMode)  {
    CLEDController *pCur = CLEDController::head();
    while(pCur) {
        pCur->setDither(ditherMode);
        pCur = pCur->next();
    }
}
 
//
// template<int m, int n> void transpose8(unsigned char A[8], unsigned char B[8]) {
//  uint32_t x, y, t;
//
//  // Load the array and pack it into x and y.
//      y = *(unsigned int*)(A);
//  x = *(unsigned int*)(A+4);
//
//  // x = (A[0]<<24)   | (A[m]<<16)   | (A[2*m]<<8) | A[3*m];
//  // y = (A[4*m]<<24) | (A[5*m]<<16) | (A[6*m]<<8) | A[7*m];
//
        // // pre-transform x
        // t = (x ^ (x >> 7)) & 0x00AA00AA;  x = x ^ t ^ (t << 7);
        // t = (x ^ (x >>14)) & 0x0000CCCC;  x = x ^ t ^ (t <<14);
                //
        // // pre-transform y
        // t = (y ^ (y >> 7)) & 0x00AA00AA;  y = y ^ t ^ (t << 7);
        // t = (y ^ (y >>14)) & 0x0000CCCC;  y = y ^ t ^ (t <<14);
                //
        // // final transform
        // t = (x & 0xF0F0F0F0) | ((y >> 4) & 0x0F0F0F0F);
        // y = ((x << 4) & 0xF0F0F0F0) | (y & 0x0F0F0F0F);
        // x = t;
//
//  B[7*n] = y; y >>= 8;
//  B[6*n] = y; y >>= 8;
//  B[5*n] = y; y >>= 8;
//  B[4*n] = y;
//
//   B[3*n] = x; x >>= 8;
//  B[2*n] = x; x >>= 8;
//  B[n] = x; x >>= 8;
//  B[0] = x;
//  // B[0]=x>>24;    B[n]=x>>16;    B[2*n]=x>>8;  B[3*n]=x>>0;
//  // B[4*n]=y>>24;  B[5*n]=y>>16;  B[6*n]=y>>8;  B[7*n]=y>>0;
// }
//
// void transposeLines(Lines & out, Lines & in) {
//  transpose8<1,2>(in.bytes, out.bytes);
//  transpose8<1,2>(in.bytes + 8, out.bytes + 1);
// }
 

extern int noise_min;

extern int noise_max;
 
void CFastLED::countFPS(int nFrames) {
    static int br = 0;
    static uint32_t lastframe = 0; // millis();
 
    if(br++ >= nFrames) {
        uint32_t now = millis();
        now -= lastframe;
        if(now == 0) {
            now = 1; // prevent division by zero below
        }
        m_nFPS = (br * 1000) / now;
        br = 0;
        lastframe = millis();
    }
}
 
void CFastLED::setMaxRefreshRate(uint16_t refresh, bool constrain) {
    if(constrain) {
        // if we're constraining, the new value of m_nMinMicros _must_ be higher than previously (because we're only
        // allowed to slow things down if constraining)
        if(refresh > 0) {
            m_nMinMicros = ((1000000 / refresh) > m_nMinMicros) ? (1000000 / refresh) : m_nMinMicros;
        }
    } else if(refresh > 0) {
        m_nMinMicros = 1000000 / refresh;
    } else {
        m_nMinMicros = 0;
    }
}
 
 
uint8_t get_brightness() {
    return FastLED.getBrightness();
}
 
 
 
#ifdef NEED_CXX_BITS
namespace __cxxabiv1
{
    #if !defined(ESP8266) && !defined(ESP32)
    extern "C" void __cxa_pure_virtual (void) {}
    #endif
 
    /* guard variables */
 
    /* The ABI requires a 64-bit type.  */
    __extension__ typedef int __guard __attribute__((mode(__DI__)));
 
    extern "C" int __cxa_guard_acquire (__guard *) __attribute__((weak));
    extern "C" void __cxa_guard_release (__guard *) __attribute__((weak));
    extern "C" void __cxa_guard_abort (__guard *) __attribute__((weak));
 
    extern "C" int __cxa_guard_acquire (__guard *g)
    {
        return !*(char *)(g);
    }
 
    extern "C" void __cxa_guard_release (__guard *g)
    {
        *(char *)g = 1;
    }
 
    extern "C" void __cxa_guard_abort (__guard *)
    {
 
    }
}
#endif
 
FASTLED_NAMESPACE_END