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#pragma once
#ifndef __INC_FASTSPI_LED2_H
#define __INC_FASTSPI_LED2_H
#include <stdint.h>
/// @file FastLED.h
/// central include file for FastLED, defines the CFastLED class/object
#if (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4)
#define FASTLED_HAS_PRAGMA_MESSAGE
#endif
/// Current FastLED version number, as an integer.
/// E.g. 3007001 for version "3.7.1", with:
/// * 1 digit for the major version
/// * 3 digits for the minor version
/// * 3 digits for the patch version
#define FASTLED_VERSION 3009020
#ifndef FASTLED_INTERNAL
# ifdef FASTLED_SHOW_VERSION
# ifdef FASTLED_HAS_PRAGMA_MESSAGE
# pragma message "FastLED version 3.009.020"
# else
# warning FastLED version 3.009.020 (Not really a warning, just telling you here.)
# endif
# endif
#endif
#if !defined(FASTLED_FAKE_SPI_FORWARDS_TO_FAKE_CLOCKLESS)
#if defined(__EMSCRIPTEN__)
#define FASTLED_FAKE_SPI_FORWARDS_TO_FAKE_CLOCKLESS 1
#else
#define FASTLED_FAKE_SPI_FORWARDS_TO_FAKE_CLOCKLESS 0
#endif
#endif
#ifndef __PROG_TYPES_COMPAT__
/// avr-libc define to expose __progmem__ typedefs.
/// @note These typedefs are now deprecated!
/// @see https://www.nongnu.org/avr-libc/user-manual/group__avr__pgmspace.html
#define __PROG_TYPES_COMPAT__
#endif
#ifdef __EMSCRIPTEN__
#include "platforms/wasm/js.h"
#include "platforms/wasm/led_sysdefs_wasm.h"
#include "platforms/wasm/compiler/Arduino.h"
#endif
#ifdef SmartMatrix_h
#include <SmartMatrix.h>
#endif
#ifdef DmxSimple_h
#include <DmxSimple.h>
#endif
#ifdef DmxSerial_h
#include <DMXSerial.h>
#endif
#ifdef USE_OCTOWS2811
#include <OctoWS2811.h>
#endif
#include "fl/force_inline.h"
#include "cpp_compat.h"
#include "fastled_config.h"
#include "led_sysdefs.h"
// Utility functions
#include "fastled_delay.h"
#include "bitswap.h"
#include "controller.h"
#include "fastpin.h"
#include "fastspi_types.h"
#include "dmx.h"
#include "platforms.h"
#include "fastled_progmem.h"
#include "lib8tion.h"
#include "pixeltypes.h"
#include "hsv2rgb.h"
#include "colorutils.h"
#include "pixelset.h"
#include "colorpalettes.h"
#include "noise.h"
#include "power_mgt.h"
#include "fastspi.h"
#include "chipsets.h"
#include "fl/engine_events.h"
#include "fl/leds.h"
FASTLED_NAMESPACE_BEGIN
// Backdoor to get the size of the CLedController object. The one place
// that includes this just uses extern to declare the function.
uint16_t cled_contoller_size();
/// LED chipsets with SPI interface
enum ESPIChipsets {
LPD6803, ///< LPD6803 LED chipset
LPD8806, ///< LPD8806 LED chipset
WS2801, ///< WS2801 LED chipset
WS2803, ///< WS2803 LED chipset
SM16716, ///< SM16716 LED chipset
P9813, ///< P9813 LED chipset
APA102, ///< APA102 LED chipset
SK9822, ///< SK9822 LED chipset
SK9822HD, ///< SK9822 LED chipset with 5-bit gamma correction
DOTSTAR, ///< APA102 LED chipset alias
DOTSTARHD, ///< APA102HD LED chipset alias
APA102HD, ///< APA102 LED chipset with 5-bit gamma correction
HD107, /// Same as APA102, but in turbo 40-mhz mode.
HD107HD, /// Same as APA102HD, but in turbo 40-mhz mode.
};
/// Smart Matrix Library controller type
/// @see https://github.com/pixelmatix/SmartMatrix
enum ESM { SMART_MATRIX };
/// Octo WS2811 LED Library controller types
/// @see https://www.pjrc.com/teensy/td_libs_OctoWS2811.html
/// @see https://github.com/PaulStoffregen/OctoWS2811
enum OWS2811 { OCTOWS2811,OCTOWS2811_400, OCTOWS2813};
/// WS2812Serial Library controller type
/// @see https://www.pjrc.com/non-blocking-ws2812-led-library/
/// @see https://github.com/PaulStoffregen/WS2812Serial
enum SWS2812 { WS2812SERIAL };
#ifdef HAS_PIXIE
template<uint8_t DATA_PIN, EOrder RGB_ORDER> class PIXIE : public PixieController<DATA_PIN, RGB_ORDER> {};
#endif
#ifdef FASTLED_HAS_CLOCKLESS
/// @addtogroup Chipsets
/// @{
/// @addtogroup ClocklessChipsets
/// @{
/// LED controller for WS2812 LEDs with GRB color order
/// @see WS2812Controller800Khz
template<uint8_t DATA_PIN> class NEOPIXEL : public WS2812Controller800Khz<DATA_PIN, GRB> {};
/// @brief SM16703 controller class.
/// @copydetails SM16703Controller
template<uint8_t DATA_PIN, EOrder RGB_ORDER>
class SM16703 : public SM16703Controller<DATA_PIN, RGB_ORDER> {};
/// @brief TM1829 controller class.
/// @copydetails TM1829Controller800Khz
template<uint8_t DATA_PIN, EOrder RGB_ORDER>
class TM1829 : public TM1829Controller800Khz<DATA_PIN, RGB_ORDER> {};
/// @brief TM1812 controller class.
/// @copydetails TM1809Controller800Khz
template<uint8_t DATA_PIN, EOrder RGB_ORDER>
class TM1812 : public TM1809Controller800Khz<DATA_PIN, RGB_ORDER> {};
/// @brief TM1809 controller class.
/// @copydetails TM1809Controller800Khz
template<uint8_t DATA_PIN, EOrder RGB_ORDER>
class TM1809 : public TM1809Controller800Khz<DATA_PIN, RGB_ORDER> {};
/// @brief TM1804 controller class.
/// @copydetails TM1809Controller800Khz
template<uint8_t DATA_PIN, EOrder RGB_ORDER>
class TM1804 : public TM1809Controller800Khz<DATA_PIN, RGB_ORDER> {};
/// @brief TM1803 controller class.
/// @copydetails TM1803Controller400Khz
template<uint8_t DATA_PIN, EOrder RGB_ORDER>
class TM1803 : public TM1803Controller400Khz<DATA_PIN, RGB_ORDER> {};
/// @brief UCS1903 controller class.
/// @copydetails UCS1903Controller400Khz
template<uint8_t DATA_PIN, EOrder RGB_ORDER>
class UCS1903 : public UCS1903Controller400Khz<DATA_PIN, RGB_ORDER> {};
/// @brief UCS1903B controller class.
/// @copydetails UCS1903BController800Khz
template<uint8_t DATA_PIN, EOrder RGB_ORDER>
class UCS1903B : public UCS1903BController800Khz<DATA_PIN, RGB_ORDER> {};
/// @brief UCS1904 controller class.
/// @copydetails UCS1904Controller800Khz
template<uint8_t DATA_PIN, EOrder RGB_ORDER>
class UCS1904 : public UCS1904Controller800Khz<DATA_PIN, RGB_ORDER> {};
/// @brief UCS2903 controller class.
/// @copydetails UCS2903Controller
template<uint8_t DATA_PIN, EOrder RGB_ORDER>
class UCS2903 : public UCS2903Controller<DATA_PIN, RGB_ORDER> {};
/// @brief WS2812 controller class.
/// @copydetails WS2812Controller800Khz
template<uint8_t DATA_PIN, EOrder RGB_ORDER>
class WS2812 : public WS2812Controller800Khz<DATA_PIN, RGB_ORDER> {};
/// @brief WS2815 controller class.
template<uint8_t DATA_PIN, EOrder RGB_ORDER>
class WS2815 : public WS2815Controller<DATA_PIN, RGB_ORDER> {};
/// @brief WS2816 controller class.
template <uint8_t DATA_PIN, EOrder RGB_ORDER>
class WS2816 : public WS2816Controller<DATA_PIN, RGB_ORDER> {};
/// @brief WS2852 controller class.
/// @copydetails WS2812Controller800Khz
template<uint8_t DATA_PIN, EOrder RGB_ORDER>
class WS2852 : public WS2812Controller800Khz<DATA_PIN, RGB_ORDER> {};
/// @brief WS2812B controller class.
/// @copydetails WS2812Controller800Khz
template<uint8_t DATA_PIN, EOrder RGB_ORDER>
class WS2812B : public WS2812Controller800Khz<DATA_PIN, RGB_ORDER> {};
/// @brief GS1903 controller class.
/// @copydetails WS2812Controller800Khz
template<uint8_t DATA_PIN, EOrder RGB_ORDER>
class GS1903 : public WS2812Controller800Khz<DATA_PIN, RGB_ORDER> {};
/// @brief SK6812 controller class.
/// @copydetails SK6812Controller
template<uint8_t DATA_PIN, EOrder RGB_ORDER>
class SK6812 : public SK6812Controller<DATA_PIN, RGB_ORDER> {};
/// @brief SK6822 controller class.
/// @copydetails SK6822Controller
template<uint8_t DATA_PIN, EOrder RGB_ORDER>
class SK6822 : public SK6822Controller<DATA_PIN, RGB_ORDER> {};
/// @brief APA106 controller class.
/// @copydetails SK6822Controller
template<uint8_t DATA_PIN, EOrder RGB_ORDER>
class APA106 : public SK6822Controller<DATA_PIN, RGB_ORDER> {};
/// @brief PL9823 controller class.
/// @copydetails PL9823Controller
template<uint8_t DATA_PIN, EOrder RGB_ORDER>
class PL9823 : public PL9823Controller<DATA_PIN, RGB_ORDER> {};
/// @brief WS2811 controller class.
/// @copydetails WS2811Controller800Khz
template<uint8_t DATA_PIN, EOrder RGB_ORDER>
class WS2811 : public WS2811Controller800Khz<DATA_PIN, RGB_ORDER> {};
/// @brief WS2813 controller class.
/// @copydetails WS2813Controller
template<uint8_t DATA_PIN, EOrder RGB_ORDER>
class WS2813 : public WS2813Controller<DATA_PIN, RGB_ORDER> {};
/// @brief APA104 controller class.
/// @copydetails WS2811Controller800Khz
template<uint8_t DATA_PIN, EOrder RGB_ORDER>
class APA104 : public WS2811Controller800Khz<DATA_PIN, RGB_ORDER> {};
/// @brief WS2811_400 controller class.
/// @copydetails WS2811Controller400Khz
template<uint8_t DATA_PIN, EOrder RGB_ORDER>
class WS2811_400 : public WS2811Controller400Khz<DATA_PIN, RGB_ORDER> {};
/// @brief GE8822 controller class.
/// @copydetails GE8822Controller800Khz
template<uint8_t DATA_PIN, EOrder RGB_ORDER>
class GE8822 : public GE8822Controller800Khz<DATA_PIN, RGB_ORDER> {};
/// @brief GW6205 controller class.
/// @copydetails GW6205Controller800Khz
template<uint8_t DATA_PIN, EOrder RGB_ORDER>
class GW6205 : public GW6205Controller800Khz<DATA_PIN, RGB_ORDER> {};
/// @brief GW6205_400 controller class.
/// @copydetails GW6205Controller400Khz
template<uint8_t DATA_PIN, EOrder RGB_ORDER>
class GW6205_400 : public GW6205Controller400Khz<DATA_PIN, RGB_ORDER> {};
/// @brief LPD1886 controller class.
/// @copydetails LPD1886Controller1250Khz
template<uint8_t DATA_PIN, EOrder RGB_ORDER>
class LPD1886 : public LPD1886Controller1250Khz<DATA_PIN, RGB_ORDER> {};
/// @brief LPD1886_8BIT controller class.
/// @copydetails LPD1886Controller1250Khz_8bit
template<uint8_t DATA_PIN, EOrder RGB_ORDER>
class LPD1886_8BIT : public LPD1886Controller1250Khz_8bit<DATA_PIN, RGB_ORDER> {};
/// @brief UCS1912 controller class.
template<uint8_t DATA_PIN, EOrder RGB_ORDER>
class UCS1912 : public UCS1912Controller<DATA_PIN, RGB_ORDER> {};
#if defined(DmxSimple_h) || defined(FASTLED_DOXYGEN)
/// @copydoc DMXSimpleController
template<uint8_t DATA_PIN, EOrder RGB_ORDER> class DMXSIMPLE : public DMXSimpleController<DATA_PIN, RGB_ORDER> {};
#endif
#if defined(DmxSerial_h) || defined(FASTLED_DOXYGEN)
/// @copydoc DMXSerialController
template<EOrder RGB_ORDER> class DMXSERIAL : public DMXSerialController<RGB_ORDER> {};
#endif
#endif
/// @} ClocklessChipsets
/// @} Chipsets
/// Blockless output port enum
enum EBlockChipsets {
#ifdef PORTA_FIRST_PIN
WS2811_PORTA,
WS2813_PORTA,
WS2811_400_PORTA,
TM1803_PORTA,
UCS1903_PORTA,
#endif
#ifdef PORTB_FIRST_PIN
WS2811_PORTB,
WS2813_PORTB,
WS2811_400_PORTB,
TM1803_PORTB,
UCS1903_PORTB,
#endif
#ifdef PORTC_FIRST_PIN
WS2811_PORTC,
WS2813_PORTC,
WS2811_400_PORTC,
TM1803_PORTC,
UCS1903_PORTC,
#endif
#ifdef PORTD_FIRST_PIN
WS2811_PORTD,
WS2813_PORTD,
WS2811_400_PORTD,
TM1803_PORTD,
UCS1903_PORTD,
#endif
#ifdef HAS_PORTDC
WS2811_PORTDC,
WS2813_PORTDC,
WS2811_400_PORTDC,
TM1803_PORTDC,
UCS1903_PORTDC,
#endif
};
/// Typedef for a power consumption calculation function. Used within
/// CFastLED for rescaling brightness before sending the LED data to
/// the strip with CFastLED::show().
/// @param scale the initial brightness scale value
/// @param data max power data, in milliwatts
/// @returns the brightness scale, limited to max power
typedef uint8_t (*power_func)(uint8_t scale, uint32_t data);
/// High level controller interface for FastLED.
/// This class manages controllers, global settings, and trackings such as brightness
/// and refresh rates, and provides access functions for driving led data to controllers
/// via the show() / showColor() / clear() methods.
/// This is instantiated as a global object with the name FastLED.
/// @nosubgrouping
class CFastLED {
// int m_nControllers;
uint8_t m_Scale; ///< the current global brightness scale setting
uint16_t m_nFPS; ///< tracking for current frames per second (FPS) value
uint32_t m_nMinMicros; ///< minimum µs between frames, used for capping frame rates
uint32_t m_nPowerData; ///< max power use parameter
power_func m_pPowerFunc; ///< function for overriding brightness when using FastLED.show();
public:
CFastLED();
// Useful when you want to know when an event like onFrameBegin or onFrameEnd is happening.
// This is disabled on AVR to save space.
void addListener(fl::EngineEvents::Listener *listener) { fl::EngineEvents::addListener(listener); }
void removeListener(fl::EngineEvents::Listener *listener) { fl::EngineEvents::removeListener(listener); }
/// Add a CLEDController instance to the world. Exposed to the public to allow people to implement their own
/// CLEDController objects or instances. There are two ways to call this method (as well as the other addLeds()
/// variations). The first is with 3 arguments, in which case the arguments are the controller, a pointer to
/// led data, and the number of leds used by this controller. The second is with 4 arguments, in which case
/// the first two arguments are the same, the third argument is an offset into the CRGB data where this controller's
/// CRGB data begins, and the fourth argument is the number of leds for this controller object.
/// @param pLed the led controller being added
/// @param data base pointer to an array of CRGB data structures
/// @param nLedsOrOffset number of leds (3 argument version) or offset into the data array
/// @param nLedsIfOffset number of leds (4 argument version)
/// @returns a reference to the added controller
static CLEDController &addLeds(CLEDController *pLed, struct CRGB *data, int nLedsOrOffset, int nLedsIfOffset = 0);
/// @name Adding SPI-based controllers
/// Add an SPI based CLEDController instance to the world.
///
/// There are two ways to call this method (as well as the other addLeds()
/// variations). The first is with 2 arguments, in which case the arguments are a pointer to
/// led data, and the number of leds used by this controller. The second is with 3 arguments, in which case
/// the first argument is the same, the second argument is an offset into the CRGB data where this controller's
/// CRGB data begins, and the third argument is the number of leds for this controller object.
///
/// @param data base pointer to an array of CRGB data structures
/// @param nLedsOrOffset number of leds (3 argument version) or offset into the data array
/// @param nLedsIfOffset number of leds (4 argument version)
/// @tparam CHIPSET the chipset type
/// @tparam DATA_PIN the optional data pin for the leds (if omitted, will default to the first hardware SPI MOSI pin)
/// @tparam CLOCK_PIN the optional clock pin for the leds (if omitted, will default to the first hardware SPI clock pin)
/// @tparam RGB_ORDER the rgb ordering for the leds (e.g. what order red, green, and blue data is written out in)
/// @tparam SPI_DATA_RATE the data rate to drive the SPI clock at, defined using DATA_RATE_MHZ or DATA_RATE_KHZ macros
/// @returns a reference to the added controller
/// @{
// Base template: Causes a compile-time error if an unsupported CHIPSET is used
template<ESPIChipsets CHIPSET, uint8_t DATA_PIN, uint8_t CLOCK_PIN>
struct ClockedChipsetHelper {
// Default implementation, will be specialized for supported chipsets
static const bool IS_VALID = false;
};
// Macro to define a mapping from the ESPIChipeset enum to the controller class
// in it's various template configurations.
#define _FL_MAP_CLOCKED_CHIPSET(CHIPSET_ENUM, CONTROLLER_CLASS) \
template<uint8_t DATA_PIN, uint8_t CLOCK_PIN> \
struct ClockedChipsetHelper<CHIPSET_ENUM, DATA_PIN, CLOCK_PIN> { \
static const bool IS_VALID = true; \
typedef CONTROLLER_CLASS<DATA_PIN, CLOCK_PIN> ControllerType; \
/* Controller type with RGB_ORDER specified */ \
template<EOrder RGB_ORDER> \
struct CONTROLLER_CLASS_WITH_ORDER { \
typedef CONTROLLER_CLASS<DATA_PIN, CLOCK_PIN, RGB_ORDER> ControllerType; \
}; \
/* Controller type with RGB_ORDER and spi frequency specified */ \
template<EOrder RGB_ORDER, uint32_t FREQ> \
struct CONTROLLER_CLASS_WITH_ORDER_AND_FREQ { \
typedef CONTROLLER_CLASS<DATA_PIN, CLOCK_PIN, RGB_ORDER, FREQ> ControllerType; \
}; \
};
// Define specializations for each supported CHIPSET
_FL_MAP_CLOCKED_CHIPSET(LPD6803, LPD6803Controller)
_FL_MAP_CLOCKED_CHIPSET(LPD8806, LPD8806Controller)
_FL_MAP_CLOCKED_CHIPSET(WS2801, WS2801Controller)
_FL_MAP_CLOCKED_CHIPSET(WS2803, WS2803Controller)
_FL_MAP_CLOCKED_CHIPSET(SM16716, SM16716Controller)
_FL_MAP_CLOCKED_CHIPSET(P9813, P9813Controller)
// Both DOTSTAR and APA102 use the same controller class
_FL_MAP_CLOCKED_CHIPSET(DOTSTAR, APA102Controller)
_FL_MAP_CLOCKED_CHIPSET(APA102, APA102Controller)
// Both DOTSTARHD and APA102HD use the same controller class
_FL_MAP_CLOCKED_CHIPSET(DOTSTARHD, APA102ControllerHD)
_FL_MAP_CLOCKED_CHIPSET(APA102HD, APA102ControllerHD)
_FL_MAP_CLOCKED_CHIPSET(HD107, APA102Controller)
_FL_MAP_CLOCKED_CHIPSET(HD107HD, APA102ControllerHD)
_FL_MAP_CLOCKED_CHIPSET(SK9822, SK9822Controller)
_FL_MAP_CLOCKED_CHIPSET(SK9822HD, SK9822ControllerHD)
#if FASTLED_FAKE_SPI_FORWARDS_TO_FAKE_CLOCKLESS
/// Stubbed out platforms have unique challenges in faking out the SPI based controllers.
/// Therefore for these platforms we will always delegate to the WS2812 clockless controller.
/// This is fine because the clockless controllers on the stubbed out platforms are fake anyways.
template<ESPIChipsets CHIPSET, uint8_t DATA_PIN, uint8_t CLOCK_PIN, EOrder RGB_ORDER, uint32_t SPI_DATA_RATE > CLEDController &addLeds(struct CRGB *data, int nLedsOrOffset, int nLedsIfOffset = 0) {
// Instantiate the controller using ClockedChipsetHelper
// Always USE WS2812 clockless controller since it's the common path.
return addLeds<WS2812, DATA_PIN, RGB_ORDER>(data, nLedsOrOffset, nLedsIfOffset);
}
/// Add an SPI based CLEDController instance to the world.
template<ESPIChipsets CHIPSET, uint8_t DATA_PIN, uint8_t CLOCK_PIN > static CLEDController &addLeds(struct CRGB *data, int nLedsOrOffset, int nLedsIfOffset = 0) {
// Always USE WS2812 clockless controller since it's the common path.
return addLeds<WS2812, DATA_PIN>(data, nLedsOrOffset, nLedsIfOffset);
}
// The addLeds function using ChipsetHelper
template<ESPIChipsets CHIPSET, uint8_t DATA_PIN, uint8_t CLOCK_PIN, EOrder RGB_ORDER>
CLEDController& addLeds(struct CRGB* data, int nLedsOrOffset, int nLedsIfOffset = 0) {
// Always USE WS2812 clockless controller since it's the common path.
return addLeds<WS2812, DATA_PIN, RGB_ORDER>(data, nLedsOrOffset, nLedsIfOffset);
}
#else
/// Add an SPI based CLEDController instance to the world.
template<ESPIChipsets CHIPSET, uint8_t DATA_PIN, uint8_t CLOCK_PIN, EOrder RGB_ORDER, uint32_t SPI_DATA_RATE > CLEDController &addLeds(struct CRGB *data, int nLedsOrOffset, int nLedsIfOffset = 0) {
// Instantiate the controller using ClockedChipsetHelper
typedef ClockedChipsetHelper<CHIPSET, DATA_PIN, CLOCK_PIN> CHIP;
typedef typename CHIP::template CONTROLLER_CLASS_WITH_ORDER_AND_FREQ<RGB_ORDER, SPI_DATA_RATE>::ControllerType ControllerTypeWithFreq;
static_assert(CHIP::IS_VALID, "Unsupported chipset");
static ControllerTypeWithFreq c;
return addLeds(&c, data, nLedsOrOffset, nLedsIfOffset);
}
/// Add an SPI based CLEDController instance to the world.
template<ESPIChipsets CHIPSET, uint8_t DATA_PIN, uint8_t CLOCK_PIN > static CLEDController &addLeds(struct CRGB *data, int nLedsOrOffset, int nLedsIfOffset = 0) {
typedef ClockedChipsetHelper<CHIPSET, DATA_PIN, CLOCK_PIN> CHIP;
typedef typename CHIP::ControllerType ControllerType;
static_assert(CHIP::IS_VALID, "Unsupported chipset");
static ControllerType c;
return addLeds(&c, data, nLedsOrOffset, nLedsIfOffset);
}
// The addLeds function using ChipsetHelper
template<ESPIChipsets CHIPSET, uint8_t DATA_PIN, uint8_t CLOCK_PIN, EOrder RGB_ORDER>
CLEDController& addLeds(struct CRGB* data, int nLedsOrOffset, int nLedsIfOffset = 0) {
typedef ClockedChipsetHelper<CHIPSET, DATA_PIN, CLOCK_PIN> CHIP;
static_assert(CHIP::IS_VALID, "Unsupported chipset");
typedef typename CHIP::template CONTROLLER_CLASS_WITH_ORDER<RGB_ORDER>::ControllerType ControllerTypeWithOrder;
static ControllerTypeWithOrder c;
return addLeds(&c, data, nLedsOrOffset, nLedsIfOffset);
}
#endif
#ifdef SPI_DATA
template<ESPIChipsets CHIPSET> static CLEDController &addLeds(struct CRGB *data, int nLedsOrOffset, int nLedsIfOffset = 0) {
return addLeds<CHIPSET, SPI_DATA, SPI_CLOCK, RGB>(data, nLedsOrOffset, nLedsIfOffset);
}
template<ESPIChipsets CHIPSET, EOrder RGB_ORDER> static CLEDController &addLeds(struct CRGB *data, int nLedsOrOffset, int nLedsIfOffset = 0) {
return addLeds<CHIPSET, SPI_DATA, SPI_CLOCK, RGB_ORDER>(data, nLedsOrOffset, nLedsIfOffset);
}
template<ESPIChipsets CHIPSET, EOrder RGB_ORDER, uint32_t SPI_DATA_RATE> static CLEDController &addLeds(struct CRGB *data, int nLedsOrOffset, int nLedsIfOffset = 0) {
return addLeds<CHIPSET, SPI_DATA, SPI_CLOCK, RGB_ORDER, SPI_DATA_RATE>(data, nLedsOrOffset, nLedsIfOffset);
}
#endif
/// @} Adding SPI based controllers
#ifdef FASTLED_HAS_CLOCKLESS
/// @name Adding 3-wire led controllers
/// Add a clockless (aka 3-wire, also DMX) based CLEDController instance to the world.
///
/// There are two ways to call this method (as well as the other addLeds()
/// variations). The first is with 2 arguments, in which case the arguments are a pointer to
/// led data, and the number of leds used by this controller. The second is with 3 arguments, in which case
/// the first argument is the same, the second argument is an offset into the CRGB data where this controller's
/// CRGB data begins, and the third argument is the number of leds for this controller object.
///
/// This method also takes 2 to 3 template parameters for identifying the specific chipset, data pin,
/// RGB ordering, and SPI data rate
///
/// @param data base pointer to an array of CRGB data structures
/// @param nLedsOrOffset number of leds (3 argument version) or offset into the data array
/// @param nLedsIfOffset number of leds (4 argument version)
/// @tparam CHIPSET the chipset type (required)
/// @tparam DATA_PIN the data pin for the leds (required)
/// @tparam RGB_ORDER the rgb ordering for the leds (e.g. what order red, green, and blue data is written out in)
/// @returns a reference to the added controller
/// @{
/// Add a clockless based CLEDController instance to the world.
template<template<uint8_t DATA_PIN, EOrder RGB_ORDER> class CHIPSET, uint8_t DATA_PIN, EOrder RGB_ORDER>
static CLEDController &addLeds(struct CRGB *data, int nLedsOrOffset, int nLedsIfOffset = 0) {
static CHIPSET<DATA_PIN, RGB_ORDER> c;
return addLeds(&c, data, nLedsOrOffset, nLedsIfOffset);
}
/// Add a clockless based CLEDController instance to the world.
template<template<uint8_t DATA_PIN, EOrder RGB_ORDER> class CHIPSET, uint8_t DATA_PIN>
static CLEDController &addLeds(struct CRGB *data, int nLedsOrOffset, int nLedsIfOffset = 0) {
static CHIPSET<DATA_PIN, RGB> c;
return addLeds(&c, data, nLedsOrOffset, nLedsIfOffset);
}
/// Add a clockless based CLEDController instance to the world.
template<template<uint8_t DATA_PIN> class CHIPSET, uint8_t DATA_PIN>
static CLEDController &addLeds(struct CRGB *data, int nLedsOrOffset, int nLedsIfOffset = 0) {
static CHIPSET<DATA_PIN> c;
return addLeds(&c, data, nLedsOrOffset, nLedsIfOffset);
}
template<template<uint8_t DATA_PIN> class CHIPSET, uint8_t DATA_PIN>
static CLEDController &addLeds(class fl::Leds& leds, int nLedsOrOffset, int nLedsIfOffset = 0) {
CRGB* rgb = leds;
return addLeds<CHIPSET, DATA_PIN>(rgb, nLedsOrOffset, nLedsIfOffset);
}
#if defined(__FASTLED_HAS_FIBCC) && (__FASTLED_HAS_FIBCC == 1)
template<uint8_t NUM_LANES, template<uint8_t DATA_PIN, EOrder RGB_ORDER> class CHIPSET, uint8_t DATA_PIN, EOrder RGB_ORDER=RGB>
static CLEDController &addLeds(struct CRGB *data, int nLeds) {
static __FIBCC<CHIPSET, DATA_PIN, NUM_LANES, RGB_ORDER> c;
return addLeds(&c, data, nLeds);
}
#endif
#ifdef FASTSPI_USE_DMX_SIMPLE
template<EClocklessChipsets CHIPSET, uint8_t DATA_PIN, EOrder RGB_ORDER=RGB>
static CLEDController &addLeds(struct CRGB *data, int nLedsOrOffset, int nLedsIfOffset = 0)
{
switch(CHIPSET) {
case DMX: { static DMXController<DATA_PIN> controller; return addLeds(&controller, data, nLedsOrOffset, nLedsIfOffset); }
}
}
#endif
/// @} Adding 3-wire led controllers
#endif
/// @name Adding 3rd party library controllers
/// Add a 3rd party library based CLEDController instance to the world.
///
/// There are two ways to call this method (as well as the other addLeds()
/// variations). The first is with 2 arguments, in which case the arguments are a pointer to
/// led data, and the number of leds used by this controller. The second is with 3 arguments, in which case
/// the first argument is the same, the second argument is an offset into the CRGB data where this controller's
/// CRGB data begins, and the third argument is the number of leds for this controller object. This class includes the SmartMatrix
/// and OctoWS2811 based controllers
///
/// This method also takes 1 to 2 template parameters for identifying the specific chipset and
/// RGB ordering.
///
/// @param data base pointer to an array of CRGB data structures
/// @param nLedsOrOffset number of leds (3 argument version) or offset into the data array
/// @param nLedsIfOffset number of leds (4 argument version)
/// @tparam CHIPSET the chipset type (required)
/// @tparam RGB_ORDER the rgb ordering for the leds (e.g. what order red, green, and blue data is written out in)
/// @returns a reference to the added controller
/// @{
/// Add a 3rd party library based CLEDController instance to the world.
template<template<EOrder RGB_ORDER> class CHIPSET, EOrder RGB_ORDER>
static CLEDController &addLeds(struct CRGB *data, int nLedsOrOffset, int nLedsIfOffset = 0) {
static CHIPSET<RGB_ORDER> c;
return addLeds(&c, data, nLedsOrOffset, nLedsIfOffset);
}
/// Add a 3rd party library based CLEDController instance to the world.
template<template<EOrder RGB_ORDER> class CHIPSET>
static CLEDController &addLeds(struct CRGB *data, int nLedsOrOffset, int nLedsIfOffset = 0) {
static CHIPSET<RGB> c;
return addLeds(&c, data, nLedsOrOffset, nLedsIfOffset);
}
#ifdef USE_OCTOWS2811
/// Add a OCTOWS2811 based CLEDController instance to the world.
/// @see https://www.pjrc.com/teensy/td_libs_OctoWS2811.html
/// @see https://github.com/PaulStoffregen/OctoWS2811
template<OWS2811 CHIPSET, EOrder RGB_ORDER>
static CLEDController &addLeds(struct CRGB *data, int nLedsOrOffset, int nLedsIfOffset = 0)
{
switch(CHIPSET) {
case OCTOWS2811: { static COctoWS2811Controller<RGB_ORDER,WS2811_800kHz> controller; return addLeds(&controller, data, nLedsOrOffset, nLedsIfOffset); }
case OCTOWS2811_400: { static COctoWS2811Controller<RGB_ORDER,WS2811_400kHz> controller; return addLeds(&controller, data, nLedsOrOffset, nLedsIfOffset); }
#ifdef WS2813_800kHz
case OCTOWS2813: { static COctoWS2811Controller<RGB_ORDER,WS2813_800kHz> controller; return addLeds(&controller, data, nLedsOrOffset, nLedsIfOffset); }
#endif
}
}
/// Add a OCTOWS2811 library based CLEDController instance to the world.
/// @see https://www.pjrc.com/teensy/td_libs_OctoWS2811.html
/// @see https://github.com/PaulStoffregen/OctoWS2811
template<OWS2811 CHIPSET>
static CLEDController &addLeds(struct CRGB *data, int nLedsOrOffset, int nLedsIfOffset = 0)
{
return addLeds<CHIPSET,GRB>(data,nLedsOrOffset,nLedsIfOffset);
}
#endif
#ifdef USE_WS2812SERIAL
/// Add a WS2812Serial library based CLEDController instance to the world.
/// @see https://www.pjrc.com/non-blocking-ws2812-led-library/
/// @see https://github.com/PaulStoffregen/WS2812Serial
template<SWS2812 CHIPSET, int DATA_PIN, EOrder RGB_ORDER>
static CLEDController &addLeds(struct CRGB *data, int nLedsOrOffset, int nLedsIfOffset = 0)
{
static CWS2812SerialController<DATA_PIN,RGB_ORDER> controller;
return addLeds(&controller, data, nLedsOrOffset, nLedsIfOffset);
}
#endif
#ifdef SmartMatrix_h
/// Add a SmartMatrix library based CLEDController instance to the world.
/// @see https://github.com/pixelmatix/SmartMatrix
template<ESM CHIPSET>
static CLEDController &addLeds(struct CRGB *data, int nLedsOrOffset, int nLedsIfOffset = 0)
{
switch(CHIPSET) {
case SMART_MATRIX: { static CSmartMatrixController controller; return addLeds(&controller, data, nLedsOrOffset, nLedsIfOffset); }
}
}
#endif
/// @} Adding 3rd party library controllers
#ifdef FASTLED_HAS_BLOCKLESS
/// @name Adding parallel output controllers
/// Add a block based CLEDController instance to the world.
///
/// There are two ways to call this method (as well as the other addLeds()
/// variations). The first is with 2 arguments, in which case the arguments are a pointer to
/// led data, and the number of leds used by this controller. The second is with 3 arguments, in which case
/// the first argument is the same, the second argument is an offset into the CRGB data where this controller's
/// CRGB data begins, and the third argument is the number of leds for this controller object.
///
/// This method also takes a 2 to 3 template parameters for identifying the specific chipset and rgb ordering
/// RGB ordering, and SPI data rate
///
/// @param data base pointer to an array of CRGB data structures
/// @param nLedsOrOffset number of leds (3 argument version) or offset into the data array
/// @param nLedsIfOffset number of leds (4 argument version)
/// @tparam CHIPSET the chipset/port type (required)
/// @tparam NUM_LANES how many parallel lanes of output to write
/// @tparam RGB_ORDER the rgb ordering for the leds (e.g. what order red, green, and blue data is written out in)
/// @returns a reference to the added controller
/// @{
/// Add a block based parallel output CLEDController instance to the world.
template<EBlockChipsets CHIPSET, int NUM_LANES, EOrder RGB_ORDER>
static CLEDController &addLeds(struct CRGB *data, int nLedsOrOffset, int nLedsIfOffset = 0) {
switch(CHIPSET) {
#ifdef PORTA_FIRST_PIN
case WS2811_PORTA: return addLeds(new InlineBlockClocklessController<NUM_LANES, PORTA_FIRST_PIN, NS(320), NS(320), NS(640), RGB_ORDER>(), data, nLedsOrOffset, nLedsIfOffset);
case WS2811_400_PORTA: return addLeds(new InlineBlockClocklessController<NUM_LANES, PORTA_FIRST_PIN, NS(800), NS(800), NS(900), RGB_ORDER>(), data, nLedsOrOffset, nLedsIfOffset);
case WS2813_PORTA: return addLeds(new InlineBlockClocklessController<NUM_LANES, PORTA_FIRST_PIN, NS(320), NS(320), NS(640), RGB_ORDER, 0, false, 300>(), data, nLedsOrOffset, nLedsIfOffset);
case TM1803_PORTA: return addLeds(new InlineBlockClocklessController<NUM_LANES, PORTA_FIRST_PIN, NS(700), NS(1100), NS(700), RGB_ORDER>(), data, nLedsOrOffset, nLedsIfOffset);
case UCS1903_PORTA: return addLeds(new InlineBlockClocklessController<NUM_LANES, PORTA_FIRST_PIN, NS(500), NS(1500), NS(500), RGB_ORDER>(), data, nLedsOrOffset, nLedsIfOffset);
#endif
#ifdef PORTB_FIRST_PIN
case WS2811_PORTB: return addLeds(new InlineBlockClocklessController<NUM_LANES, PORTB_FIRST_PIN, NS(320), NS(320), NS(640), RGB_ORDER>(), data, nLedsOrOffset, nLedsIfOffset);
case WS2811_400_PORTB: return addLeds(new InlineBlockClocklessController<NUM_LANES, PORTB_FIRST_PIN, NS(800), NS(800), NS(900), RGB_ORDER>(), data, nLedsOrOffset, nLedsIfOffset);
case WS2813_PORTB: return addLeds(new InlineBlockClocklessController<NUM_LANES, PORTB_FIRST_PIN, NS(320), NS(320), NS(640), RGB_ORDER, 0, false, 300>(), data, nLedsOrOffset, nLedsIfOffset);
case TM1803_PORTB: return addLeds(new InlineBlockClocklessController<NUM_LANES, PORTB_FIRST_PIN, NS(700), NS(1100), NS(700), RGB_ORDER>(), data, nLedsOrOffset, nLedsIfOffset);
case UCS1903_PORTB: return addLeds(new InlineBlockClocklessController<NUM_LANES, PORTB_FIRST_PIN, NS(500), NS(1500), NS(500), RGB_ORDER>(), data, nLedsOrOffset, nLedsIfOffset);
#endif
#ifdef PORTC_FIRST_PIN
case WS2811_PORTC: return addLeds(new InlineBlockClocklessController<NUM_LANES, PORTC_FIRST_PIN, NS(320), NS(320), NS(640), RGB_ORDER>(), data, nLedsOrOffset, nLedsIfOffset);
case WS2811_400_PORTC: return addLeds(new InlineBlockClocklessController<NUM_LANES, PORTC_FIRST_PIN, NS(800), NS(800), NS(900), RGB_ORDER>(), data, nLedsOrOffset, nLedsIfOffset);
case WS2813_PORTC: return addLeds(new InlineBlockClocklessController<NUM_LANES, PORTC_FIRST_PIN, NS(320), NS(320), NS(640), RGB_ORDER, 0, false, 300>(), data, nLedsOrOffset, nLedsIfOffset);
case TM1803_PORTC: return addLeds(new InlineBlockClocklessController<NUM_LANES, PORTC_FIRST_PIN, NS(700), NS(1100), NS(700), RGB_ORDER>(), data, nLedsOrOffset, nLedsIfOffset);
case UCS1903_PORTC: return addLeds(new InlineBlockClocklessController<NUM_LANES, PORTC_FIRST_PIN, NS(500), NS(1500), NS(500), RGB_ORDER>(), data, nLedsOrOffset, nLedsIfOffset);
#endif
#ifdef PORTD_FIRST_PIN
case WS2811_PORTD: return addLeds(new InlineBlockClocklessController<NUM_LANES, PORTD_FIRST_PIN, NS(320), NS(320), NS(640), RGB_ORDER>(), data, nLedsOrOffset, nLedsIfOffset);
case WS2811_400_PORTD: return addLeds(new InlineBlockClocklessController<NUM_LANES, PORTD_FIRST_PIN, NS(800), NS(800), NS(900), RGB_ORDER>(), data, nLedsOrOffset, nLedsIfOffset);
case WS2813_PORTD: return addLeds(new InlineBlockClocklessController<NUM_LANES, PORTD_FIRST_PIN, NS(320), NS(320), NS(640), RGB_ORDER, 0, false, 300>(), data, nLedsOrOffset, nLedsIfOffset);
case TM1803_PORTD: return addLeds(new InlineBlockClocklessController<NUM_LANES, PORTD_FIRST_PIN, NS(700), NS(1100), NS(700), RGB_ORDER>(), data, nLedsOrOffset, nLedsIfOffset);
case UCS1903_PORTD: return addLeds(new InlineBlockClocklessController<NUM_LANES, PORTD_FIRST_PIN, NS(500), NS(1500), NS(500), RGB_ORDER>(), data, nLedsOrOffset, nLedsIfOffset);
#endif
#ifdef HAS_PORTDC
case WS2811_PORTDC: return addLeds(new SixteenWayInlineBlockClocklessController<NUM_LANES,NS(320), NS(320), NS(640), RGB_ORDER>(), data, nLedsOrOffset, nLedsIfOffset);
case WS2811_400_PORTDC: return addLeds(new SixteenWayInlineBlockClocklessController<NUM_LANES,NS(800), NS(800), NS(900), RGB_ORDER>(), data, nLedsOrOffset, nLedsIfOffset);
case WS2813_PORTDC: return addLeds(new SixteenWayInlineBlockClocklessController<NUM_LANES, NS(320), NS(320), NS(640), RGB_ORDER, 0, false, 300>(), data, nLedsOrOffset, nLedsIfOffset);
case TM1803_PORTDC: return addLeds(new SixteenWayInlineBlockClocklessController<NUM_LANES, NS(700), NS(1100), NS(700), RGB_ORDER>(), data, nLedsOrOffset, nLedsIfOffset);
case UCS1903_PORTDC: return addLeds(new SixteenWayInlineBlockClocklessController<NUM_LANES, NS(500), NS(1500), NS(500), RGB_ORDER>(), data, nLedsOrOffset, nLedsIfOffset);
#endif
}
}
/// Add a block based parallel output CLEDController instance to the world.
template<EBlockChipsets CHIPSET, int NUM_LANES>
static CLEDController &addLeds(struct CRGB *data, int nLedsOrOffset, int nLedsIfOffset = 0) {
return addLeds<CHIPSET,NUM_LANES,GRB>(data,nLedsOrOffset,nLedsIfOffset);
}
/// @} Adding parallel output controllers
#endif
/// Set the global brightness scaling
/// @param scale a 0-255 value for how much to scale all leds before writing them out
void setBrightness(uint8_t scale) { m_Scale = scale; }
/// Get the current global brightness setting
/// @returns the current global brightness value
uint8_t getBrightness() { return m_Scale; }
/// Set the maximum power to be used, given in volts and milliamps.
/// @param volts how many volts the leds are being driven at (usually 5)
/// @param milliamps the maximum milliamps of power draw you want
inline void setMaxPowerInVoltsAndMilliamps(uint8_t volts, uint32_t milliamps) { setMaxPowerInMilliWatts(volts * milliamps); }
/// Set the maximum power to be used, given in milliwatts
/// @param milliwatts the max power draw desired, in milliwatts
inline void setMaxPowerInMilliWatts(uint32_t milliwatts) { m_pPowerFunc = &calculate_max_brightness_for_power_mW; m_nPowerData = milliwatts; }
/// Update all our controllers with the current led colors, using the passed in brightness
/// @param scale the brightness value to use in place of the stored value
void show(uint8_t scale);
/// Update all our controllers with the current led colors
void show() { show(m_Scale); }
// Called automatically at the end of show().
void onEndFrame();
/// Clear the leds, wiping the local array of data. Optionally you can also
/// send the cleared data to the LEDs.
/// @param writeData whether or not to write out to the leds as well
void clear(bool writeData = false);
/// Clear out the local data array
void clearData();
/// Set all leds on all controllers to the given color/scale.
/// @param color what color to set the leds to
/// @param scale what brightness scale to show at
void showColor(const struct CRGB & color, uint8_t scale);
/// Set all leds on all controllers to the given color
/// @param color what color to set the leds to
void showColor(const struct CRGB & color) { showColor(color, m_Scale); }
/// Delay for the given number of milliseconds. Provided to allow the library to be used on platforms
/// that don't have a delay function (to allow code to be more portable).
/// @note This will call show() constantly to drive the dithering engine (and will call show() at least once).
/// @param ms the number of milliseconds to pause for
void delay(unsigned long ms);
/// Set a global color temperature. Sets the color temperature for all added led strips,
/// overriding whatever previous color temperature those controllers may have had.
/// @param temp A CRGB structure describing the color temperature
void setTemperature(const struct CRGB & temp);
/// Set a global color correction. Sets the color correction for all added led strips,
/// overriding whatever previous color correction those controllers may have had.
/// @param correction A CRGB structure describin the color correction.
void setCorrection(const struct CRGB & correction);
/// Set the dithering mode. Sets the dithering mode for all added led strips, overriding
/// whatever previous dithering option those controllers may have had.
/// @param ditherMode what type of dithering to use, either BINARY_DITHER or DISABLE_DITHER
void setDither(uint8_t ditherMode = BINARY_DITHER);
/// Set the maximum refresh rate. This is global for all leds. Attempts to
/// call show() faster than this rate will simply wait.
/// @note The refresh rate defaults to the slowest refresh rate of all the leds added through addLeds().
/// If you wish to set/override this rate, be sure to call setMaxRefreshRate() _after_
/// adding all of your leds.
/// @param refresh maximum refresh rate in hz
/// @param constrain constrain refresh rate to the slowest speed yet set
void setMaxRefreshRate(uint16_t refresh, bool constrain=false);
/// For debugging, this will keep track of time between calls to countFPS(). Every
/// `nFrames` calls, it will update an internal counter for the current FPS.
/// @todo Make this a rolling counter
/// @param nFrames how many frames to time for determining FPS
void countFPS(int nFrames=25);
/// Get the number of frames/second being written out
/// @returns the most recently computed FPS value
uint16_t getFPS() { return m_nFPS; }
/// Get how many controllers have been registered
/// @returns the number of controllers (strips) that have been added with addLeds()
int count();
/// Get a reference to a registered controller
/// @returns a reference to the Nth controller
CLEDController & operator[](int x);
/// Get the number of leds in the first controller
/// @returns the number of LEDs in the first controller
int size();
/// Get a pointer to led data for the first controller
/// @returns pointer to the CRGB buffer for the first controller
CRGB *leds();
};
/// Alias of the FastLED instance for legacy purposes
#define FastSPI_LED FastLED
/// Alias of the FastLED instance for legacy purposes
#define FastSPI_LED2 FastLED
#ifndef LEDS
/// Alias of the FastLED instance for legacy purposes
#define LEDS FastLED
#endif
/// Global LED strip management instance
extern CFastLED FastLED;
/// If no pin/port mappings are found, sends a warning message to the user
/// during compilation.
/// @see fastpin.h
#ifndef HAS_HARDWARE_PIN_SUPPORT
#warning "No pin/port mappings found, pin access will be slightly slower. See fastpin.h for info."
#define NO_HARDWARE_PIN_SUPPORT
#endif
FASTLED_NAMESPACE_END
#endif
/////////////////////////// Convenience includes for sketches ///////////////////////////
#if !defined(FASTLED_INTERNAL) && !defined(FASTLED_LEAN_AND_MEAN)
#include "fl/str.h" // Awesome Str class that has stack allocation and heap overflow, copy on write.
#include "fl/xymap.h" // XYMap class for mapping 2D coordinates on seperintine matrices.
#include "fl/clamp.h" // fl::clamp(value, min, max)
#include "fl/map_range.h" // fl::map_range(value, in_min, in_max, out_min, out_max)
#include "fl/warn.h" // FASTLED_WARN("time now: " << millis()), FASTLED_WARN_IF(condition, "time now: " << millis());"
#include "fl/assert.h" // FASTLED_ASSERT(condition, "message");
#include "fl/unused.h" // FASTLED_UNUSED(variable), for strict compiler settings.
// provides:
// fl::vector<T> - Standard heap vector
// fl::vector_inlined<T,N> - Allocate on stack N elements, then overflow to heap vector.
// fl::vector_fixed<T,N> - Stack allocated fixed size vector, elements will fail to add when full.
#include "fl/vector.h"
// Flexible callbacks in the style of std::function.
#include "fl/function.h"
// Clears the led data and other objects.
// CRGB leds[NUM_LEDS];
// fl::clear(leds)
#include "fl/clear.h"
// Leds has a CRGB block and an XYMap
#include "fl/leds.h"
#include "fl/ui.h" // Provides UIButton, UISlider, UICheckbox, UINumberField and UITitle, UIDescription.
using fl::UIButton; // These names are unique enough that we don't need to namespace them
using fl::UICheckbox;
using fl::UINumberField;
using fl::UISlider;
using fl::XYMap;
#define FASTLED_TITLE(text) fl::UITitle g_title(text)
#define FASTLED_DESCRIPTION(text) fl::UIDescription g_description(text)
#endif // FASTLED_INTERNAL && !FASTLED_LEAN_AND_MEAN
// Auto namespace if necessary.
#if defined(FASTLED_FORCE_USE_NAMESPACE) && FASTLED_FORCE_USE_NAMESPACE==1
using namespace fl;
#endif
// Experimental: loop() hijacking.
//
// EngineEvents requires that FastLED.show() be invoked.
// If the user skips that then certain updates will be skipped.
//
// Right now this isn't a big deal, but in the future it could be.
//
// Therefore this experiment is done so that this loop() hijack trick
// can be used to insert code at the start of every loop(), such as a
// scoped object that forces a begin and end frame event.
//
// It's possible to hijack the loop() via a macro so that
// extra code can be injected at the start of every frame.
#if 0
#define loop() \
real_loop(); \
void loop() { FASTLED_WARN("hijacked the loop"); real_loop(); } \
void real_loop()
#endif