forked from Elron_dev/elbear_arduino_bsp
178 lines
8.2 KiB
C++
178 lines
8.2 KiB
C++
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#ifndef NEOPIXEL_H
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#define NEOPIXEL_H
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#include <Arduino.h>
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// RGB NeoPixel permutations; white and red offsets are always same
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// Offset: W R G B
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#define NEO_RGB ((0 << 6) | (0 << 4) | (1 << 2) | (2)) ///< Transmit as R,G,B
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#define NEO_RBG ((0 << 6) | (0 << 4) | (2 << 2) | (1)) ///< Transmit as R,B,G
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#define NEO_GRB ((1 << 6) | (1 << 4) | (0 << 2) | (2)) ///< Transmit as G,R,B
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#define NEO_GBR ((2 << 6) | (2 << 4) | (0 << 2) | (1)) ///< Transmit as G,B,R
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#define NEO_BRG ((1 << 6) | (1 << 4) | (2 << 2) | (0)) ///< Transmit as B,R,G
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#define NEO_BGR ((2 << 6) | (2 << 4) | (1 << 2) | (0)) ///< Transmit as B,G,R
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// RGBW NeoPixel permutations; all 4 offsets are distinct
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// Offset: W R G B
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#define NEO_WRGB ((0 << 6) | (1 << 4) | (2 << 2) | (3)) ///< Transmit as W,R,G,B
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#define NEO_WRBG ((0 << 6) | (1 << 4) | (3 << 2) | (2)) ///< Transmit as W,R,B,G
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#define NEO_WGRB ((0 << 6) | (2 << 4) | (1 << 2) | (3)) ///< Transmit as W,G,R,B
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#define NEO_WGBR ((0 << 6) | (3 << 4) | (1 << 2) | (2)) ///< Transmit as W,G,B,R
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#define NEO_WBRG ((0 << 6) | (2 << 4) | (3 << 2) | (1)) ///< Transmit as W,B,R,G
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#define NEO_WBGR ((0 << 6) | (3 << 4) | (2 << 2) | (1)) ///< Transmit as W,B,G,R
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#define NEO_RWGB ((1 << 6) | (0 << 4) | (2 << 2) | (3)) ///< Transmit as R,W,G,B
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#define NEO_RWBG ((1 << 6) | (0 << 4) | (3 << 2) | (2)) ///< Transmit as R,W,B,G
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#define NEO_RGWB ((2 << 6) | (0 << 4) | (1 << 2) | (3)) ///< Transmit as R,G,W,B
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#define NEO_RGBW ((3 << 6) | (0 << 4) | (1 << 2) | (2)) ///< Transmit as R,G,B,W
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#define NEO_RBWG ((2 << 6) | (0 << 4) | (3 << 2) | (1)) ///< Transmit as R,B,W,G
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#define NEO_RBGW ((3 << 6) | (0 << 4) | (2 << 2) | (1)) ///< Transmit as R,B,G,W
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#define NEO_GWRB ((1 << 6) | (2 << 4) | (0 << 2) | (3)) ///< Transmit as G,W,R,B
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#define NEO_GWBR ((1 << 6) | (3 << 4) | (0 << 2) | (2)) ///< Transmit as G,W,B,R
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#define NEO_GRWB ((2 << 6) | (1 << 4) | (0 << 2) | (3)) ///< Transmit as G,R,W,B
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#define NEO_GRBW ((3 << 6) | (1 << 4) | (0 << 2) | (2)) ///< Transmit as G,R,B,W
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#define NEO_GBWR ((2 << 6) | (3 << 4) | (0 << 2) | (1)) ///< Transmit as G,B,W,R
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#define NEO_GBRW ((3 << 6) | (2 << 4) | (0 << 2) | (1)) ///< Transmit as G,B,R,W
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#define NEO_BWRG ((1 << 6) | (2 << 4) | (3 << 2) | (0)) ///< Transmit as B,W,R,G
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#define NEO_BWGR ((1 << 6) | (3 << 4) | (2 << 2) | (0)) ///< Transmit as B,W,G,R
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#define NEO_BRWG ((2 << 6) | (1 << 4) | (3 << 2) | (0)) ///< Transmit as B,R,W,G
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#define NEO_BRGW ((3 << 6) | (1 << 4) | (2 << 2) | (0)) ///< Transmit as B,R,G,W
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#define NEO_BGWR ((2 << 6) | (3 << 4) | (1 << 2) | (0)) ///< Transmit as B,G,W,R
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#define NEO_BGRW ((3 << 6) | (2 << 4) | (1 << 2) | (0)) ///< Transmit as B,G,R,W
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#define NEO_KHZ400 0x0100 ///< 400 KHz data transmission
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#define NEO_KHZ800 0x0000 ///< 800 KHz data transmission
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typedef uint16_t neoPixelType; ///< 3rd arg to NeoPixel constructor
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static const uint8_t PROGMEM _NeoPixelSineTable[256] = {
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128, 131, 134, 137, 140, 143, 146, 149, 152, 155, 158, 162, 165, 167, 170,
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173, 176, 179, 182, 185, 188, 190, 193, 196, 198, 201, 203, 206, 208, 211,
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213, 215, 218, 220, 222, 224, 226, 228, 230, 232, 234, 235, 237, 238, 240,
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241, 243, 244, 245, 246, 248, 249, 250, 250, 251, 252, 253, 253, 254, 254,
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254, 255, 255, 255, 255, 255, 255, 255, 254, 254, 254, 253, 253, 252, 251,
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250, 250, 249, 248, 246, 245, 244, 243, 241, 240, 238, 237, 235, 234, 232,
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230, 228, 226, 224, 222, 220, 218, 215, 213, 211, 208, 206, 203, 201, 198,
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196, 193, 190, 188, 185, 182, 179, 176, 173, 170, 167, 165, 162, 158, 155,
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152, 149, 146, 143, 140, 137, 134, 131, 128, 124, 121, 118, 115, 112, 109,
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106, 103, 100, 97, 93, 90, 88, 85, 82, 79, 76, 73, 70, 67, 65,
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62, 59, 57, 54, 52, 49, 47, 44, 42, 40, 37, 35, 33, 31, 29,
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27, 25, 23, 21, 20, 18, 17, 15, 14, 12, 11, 10, 9, 7, 6,
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5, 5, 4, 3, 2, 2, 1, 1, 1, 0, 0, 0, 0, 0, 0,
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0, 1, 1, 1, 2, 2, 3, 4, 5, 5, 6, 7, 9, 10, 11,
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12, 14, 15, 17, 18, 20, 21, 23, 25, 27, 29, 31, 33, 35, 37,
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40, 42, 44, 47, 49, 52, 54, 57, 59, 62, 65, 67, 70, 73, 76,
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79, 82, 85, 88, 90, 93, 97, 100, 103, 106, 109, 112, 115, 118, 121,
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124};
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static const uint8_t PROGMEM _NeoPixelGammaTable[256] = {
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1,
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1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 3,
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3, 3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 5, 6,
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6, 6, 6, 7, 7, 7, 8, 8, 8, 9, 9, 9, 10, 10, 10,
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11, 11, 11, 12, 12, 13, 13, 13, 14, 14, 15, 15, 16, 16, 17,
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17, 18, 18, 19, 19, 20, 20, 21, 21, 22, 22, 23, 24, 24, 25,
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25, 26, 27, 27, 28, 29, 29, 30, 31, 31, 32, 33, 34, 34, 35,
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36, 37, 38, 38, 39, 40, 41, 42, 42, 43, 44, 45, 46, 47, 48,
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49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63,
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64, 65, 66, 68, 69, 70, 71, 72, 73, 75, 76, 77, 78, 80, 81,
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82, 84, 85, 86, 88, 89, 90, 92, 93, 94, 96, 97, 99, 100, 102,
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103, 105, 106, 108, 109, 111, 112, 114, 115, 117, 119, 120, 122, 124, 125,
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127, 129, 130, 132, 134, 136, 137, 139, 141, 143, 145, 146, 148, 150, 152,
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154, 156, 158, 160, 162, 164, 166, 168, 170, 172, 174, 176, 178, 180, 182,
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184, 186, 188, 191, 193, 195, 197, 199, 202, 204, 206, 209, 211, 213, 215,
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218, 220, 223, 225, 227, 230, 232, 235, 237, 240, 242, 245, 247, 250, 252,
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255};
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class NeoPixel {
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public:
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// Constructor: number of LEDs, pin number, LED type
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NeoPixel(uint16_t n, int16_t pin = 6,
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neoPixelType type = NEO_GRB + NEO_KHZ800);
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NeoPixel(void);
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~NeoPixel();
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void begin(void);
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void show(void);
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void setPin(int16_t p);
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void setPixelColor(uint16_t n, uint8_t r, uint8_t g, uint8_t b);
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void setPixelColor(uint16_t n, uint8_t r, uint8_t g, uint8_t b, uint8_t w);
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void setPixelColor(uint16_t n, uint32_t c);
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void fill(uint32_t c = 0, uint16_t first = 0, uint16_t count = 0);
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void setBrightness(uint8_t);
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void clear(void);
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void updateLength(uint16_t n);
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void updateType(neoPixelType t);
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bool canShow(void) {
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uint32_t now = micros();
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if (endTime > now) {
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endTime = now;
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}
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return (now - endTime) >= 300L;
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}
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uint8_t *getPixels(void) const { return pixels; };
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uint8_t getBrightness(void) const;
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int16_t getPin(void) const { return pin; };
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uint16_t numPixels(void) const { return numLEDs; }
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uint32_t getPixelColor(uint16_t n) const;
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static uint8_t sine8(uint8_t x) {
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return pgm_read_byte(&_NeoPixelSineTable[x]); // 0-255 in, 0-255 out
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}
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static uint8_t gamma8(uint8_t x) {
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return pgm_read_byte(&_NeoPixelGammaTable[x]); // 0-255 in, 0-255 out
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}
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static uint32_t Color(uint8_t r, uint8_t g, uint8_t b) {
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return ((uint32_t)r << 16) | ((uint32_t)g << 8) | b;
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}
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static uint32_t Color(uint8_t r, uint8_t g, uint8_t b, uint8_t w) {
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return ((uint32_t)w << 24) | ((uint32_t)r << 16) | ((uint32_t)g << 8) | b;
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}
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static uint32_t ColorHSV(uint16_t hue, uint8_t sat = 255, uint8_t val = 255);
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static uint32_t gamma32(uint32_t x);
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void rainbow(uint16_t first_hue = 0, int8_t reps = 1,
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uint8_t saturation = 255, uint8_t brightness = 255,
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bool gammify = true);
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static neoPixelType str2order(const char *v);
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protected:
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bool is800KHz; ///< true if 800 KHz pixels
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bool begun; ///< true if begin() previously called
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uint16_t numLEDs; ///< Number of RGB LEDs in strip
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uint16_t numBytes; ///< Size of 'pixels' buffer below
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int16_t pin; ///< Output pin number (-1 if not yet set)
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uint8_t brightness; ///< Strip brightness 0-255 (stored as +1)
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uint8_t *pixels; ///< Holds LED color values (3 or 4 bytes each)
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uint8_t rOffset; ///< Red index within each 3- or 4-byte pixel
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uint8_t gOffset; ///< Index of green byte
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uint8_t bOffset; ///< Index of blue byte
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uint8_t wOffset; ///< Index of white (==rOffset if no white)
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uint32_t endTime; ///< Latch timing reference
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GPIO_TypeDef *gpioPort; ///< Output GPIO PORT
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uint32_t gpioPin; ///< Output GPIO PIN
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};
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#endif // NEOPIXEL_H
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