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Kyle Isom
2025-04-10 23:12:01 -07:00
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picocalc/libraries/TFT_eSPI/examples/Generic/ESP8266_uncannyEyes/ESP8266_uncannyEyes.ino Normal file
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// Adapted by Bodmer to work with a NodeMCU and ILI9341 or ST7735 display.
//
// This code currently does not "blink" the eye!
//
// Library used is here:
// https://github.com/Bodmer/TFT_eSPI
//
// To do, maybe, one day:
// 1. Get the eye to blink
// 2. Add another screen for another eye
// 3. Add variable to set how wide open the eye is
// 4. Add a reflected highlight to the cornea
// 5. Add top eyelid shadow to eye surface
// 6. Add aliasing to blur mask edge
//
// With one lidded eye drawn the code runs at 28-33fps (at 27-40MHz SPI clock)
// which is quite reasonable. Operation at an 80MHz SPI clock is possible but
// the display may not be able to cope with a clock rate that high and the
// performance improvement is small. Operate the ESP8266 at 160MHz for best
// frame rate. Note the images are stored in SPI FLASH (PROGMEM) so performance
// will be constrained by the increased memory access time.
// Original header for this sketch is below. Note: the technical aspects of the
// text no longer apply to this modified version of the sketch:
/*
//--------------------------------------------------------------------------
// Uncanny eyes for PJRC Teensy 3.1 with Adafruit 1.5" OLED (product #1431)
// or 1.44" TFT LCD (#2088). This uses Teensy-3.1-specific features and
// WILL NOT work on normal Arduino or other boards! Use 72 MHz (Optimized)
// board speed -- OLED does not work at 96 MHz.
//
// Adafruit invests time and resources providing this open source code,
// please support Adafruit and open-source hardware by purchasing products
// from Adafruit!
//
// Written by Phil Burgess / Paint Your Dragon for Adafruit Industries.
// MIT license. SPI FIFO insight from Paul Stoffregen's ILI9341_t3 library.
// Inspired by David Boccabella's (Marcwolf) hybrid servo/OLED eye concept.
//--------------------------------------------------------------------------
*/
#include <SPI.h>
#include <TFT_eSPI.h> // Hardware-specific library
// Enable ONE of these #includes for the various eyes:
#include "defaultEye.h" // Standard human-ish hazel eye
//#include "noScleraEye.h" // Large iris, no sclera
//#include "dragonEye.h" // Slit pupil fiery dragon/demon eye
//#include "goatEye.h" // Horizontal pupil goat/Krampus eye
#define DISPLAY_DC D3 // Data/command pin for BOTH displays
#define DISPLAY_RESET D4 // Reset pin for BOTH displays
#define SELECT_L_PIN D8 // LEFT eye chip select pin
#define SELECT_R_PIN D8 // RIGHT eye chip select pin
// INPUT CONFIG (for eye motion -- enable or comment out as needed) --------
// The ESP8266 is rather constrained here as it only has one analogue port.
// An I2C ADC could be used for more analogue channels
//#define JOYSTICK_X_PIN A0 // Analogue pin for eye horiz pos (else auto)
//#define JOYSTICK_Y_PIN A0 // Analogue pin for eye vert position (")
//#define JOYSTICK_X_FLIP // If set, reverse stick X axis
//#define JOYSTICK_Y_FLIP // If set, reverse stick Y axis
#define TRACKING // If enabled, eyelid tracks pupil
//#define IRIS_PIN A0 // Photocell or potentiometer (else auto iris)
//#define IRIS_PIN_FLIP // If set, reverse reading from dial/photocell
//#define IRIS_SMOOTH // If enabled, filter input from IRIS_PIN
#define IRIS_MIN 140 // Clip lower analogRead() range from IRIS_PIN
#define IRIS_MAX 260 // Clip upper "
#define WINK_L_PIN 0 // Pin for LEFT eye wink button
#define BLINK_PIN 1 // Pin for blink button (BOTH eyes)
#define WINK_R_PIN 2 // Pin for RIGHT eye wink button
#define AUTOBLINK // If enabled, eyes blink autonomously
// Probably don't need to edit any config below this line, -----------------
// unless building a single-eye project (pendant, etc.), in which case one
// of the two elements in the eye[] array further down can be commented out.
// Eye blinks are a tiny 3-state machine. Per-eye allows winks + blinks.
#define NOBLINK 0 // Not currently engaged in a blink
#define ENBLINK 1 // Eyelid is currently closing
#define DEBLINK 2 // Eyelid is currently opening
typedef struct {
int8_t pin; // Optional button here for indiv. wink
uint8_t state; // NOBLINK/ENBLINK/DEBLINK
int32_t duration; // Duration of blink state (micros)
uint32_t startTime; // Time (micros) of last state change
} eyeBlink;
struct {
TFT_eSPI tft; // OLED/eye[e].tft object
uint8_t cs; // Chip select pin
eyeBlink blink; // Current blink state
} eye[] = { // OK to comment out one of these for single-eye display:
TFT_eSPI(),SELECT_L_PIN,{WINK_L_PIN,NOBLINK},
//TFT_eSPI(),SELECT_R_PIN,{WINK_R_PIN,NOBLINK},
};
#define NUM_EYES (sizeof(eye) / sizeof(eye[0]))
uint32_t fstart = 0; // start time to improve frame rate calculation at startup
// INITIALIZATION -- runs once at startup ----------------------------------
void setup(void) {
uint8_t e = 0;
Serial.begin(250000);
randomSeed(analogRead(A0)); // Seed random() from floating analogue input
eye[e].tft.init();
eye[e].tft.fillScreen(TFT_BLACK);
eye[e].tft.setRotation(0);
fstart = millis()-1; // Subtract 1 to avoid divide by zero later
}
// EYE-RENDERING FUNCTION --------------------------------------------------
#define BUFFER_SIZE 256 // 64 to 512 seems optimum = 30 fps for default eye
void drawEye( // Renders one eye. Inputs must be pre-clipped & valid.
// Use native 32 bit variables where possible as this is 10% faster!
uint8_t e, // Eye array index; 0 or 1 for left/right
uint32_t iScale, // Scale factor for iris
uint32_t scleraX, // First pixel X offset into sclera image
uint32_t scleraY, // First pixel Y offset into sclera image
uint32_t uT, // Upper eyelid threshold value
uint32_t lT) { // Lower eyelid threshold value
uint32_t screenX, screenY, scleraXsave;
int32_t irisX, irisY;
uint32_t p, a;
uint32_t d;
uint32_t pixels = 0;
uint16_t pbuffer[BUFFER_SIZE]; // This one needs to be 16 bit
// Set up raw pixel dump to entire screen. Although such writes can wrap
// around automatically from end of rect back to beginning, the region is
// reset on each frame here in case of an SPI glitch.
//eye[e].tft.setAddrWindow(319-127, 0, 319, 127);
eye[e].tft.setAddrWindow(0, 0, 128, 128);
//digitalWrite(eye[e].cs, LOW); // Chip select
// Now just issue raw 16-bit values for every pixel...
scleraXsave = scleraX; // Save initial X value to reset on each line
irisY = scleraY - (SCLERA_HEIGHT - IRIS_HEIGHT) / 2;
for(screenY=0; screenY<SCREEN_HEIGHT; screenY++, scleraY++, irisY++) {
scleraX = scleraXsave;
irisX = scleraXsave - (SCLERA_WIDTH - IRIS_WIDTH) / 2;
for(screenX=0; screenX<SCREEN_WIDTH; screenX++, scleraX++, irisX++) {
if((pgm_read_byte(lower + screenY * SCREEN_WIDTH + screenX) <= lT) ||
(pgm_read_byte(upper + screenY * SCREEN_WIDTH + screenX) <= uT)) { // Covered by eyelid
p = 0;
} else if((irisY < 0) || (irisY >= IRIS_HEIGHT) ||
(irisX < 0) || (irisX >= IRIS_WIDTH)) { // In sclera
p = pgm_read_word(sclera + scleraY * SCLERA_WIDTH + scleraX);
} else { // Maybe iris...
p = pgm_read_word(polar + irisY * IRIS_WIDTH + irisX); // Polar angle/dist
d = (iScale * (p & 0x7F)) / 128; // Distance (Y)
if(d < IRIS_MAP_HEIGHT) { // Within iris area
a = (IRIS_MAP_WIDTH * (p >> 7)) / 512; // Angle (X)
p = pgm_read_word(iris + d * IRIS_MAP_WIDTH + a); // Pixel = iris
} else { // Not in iris
p = pgm_read_word(sclera + scleraY * SCLERA_WIDTH + scleraX); // Pixel = sclera
}
}
*(pbuffer + pixels++) = p>>8 | p<<8;
if (pixels >= BUFFER_SIZE) { yield(); eye[e].tft.pushColors((uint8_t*)pbuffer, pixels*2); pixels = 0;}
}
}
if (pixels) { eye[e].tft.pushColors(pbuffer, pixels); pixels = 0;}
}
// EYE ANIMATION -----------------------------------------------------------
const uint8_t ease[] = { // Ease in/out curve for eye movements 3*t^2-2*t^3
0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 2, 2, 2, 3, // T
3, 3, 4, 4, 4, 5, 5, 6, 6, 7, 7, 8, 9, 9, 10, 10, // h
11, 12, 12, 13, 14, 15, 15, 16, 17, 18, 18, 19, 20, 21, 22, 23, // x
24, 25, 26, 27, 27, 28, 29, 30, 31, 33, 34, 35, 36, 37, 38, 39, // 2
40, 41, 42, 44, 45, 46, 47, 48, 50, 51, 52, 53, 54, 56, 57, 58, // A
60, 61, 62, 63, 65, 66, 67, 69, 70, 72, 73, 74, 76, 77, 78, 80, // l
81, 83, 84, 85, 87, 88, 90, 91, 93, 94, 96, 97, 98,100,101,103, // e
104,106,107,109,110,112,113,115,116,118,119,121,122,124,125,127, // c
128,130,131,133,134,136,137,139,140,142,143,145,146,148,149,151, // J
152,154,155,157,158,159,161,162,164,165,167,168,170,171,172,174, // a
175,177,178,179,181,182,183,185,186,188,189,190,192,193,194,195, // c
197,198,199,201,202,203,204,205,207,208,209,210,211,213,214,215, // o
216,217,218,219,220,221,222,224,225,226,227,228,228,229,230,231, // b
232,233,234,235,236,237,237,238,239,240,240,241,242,243,243,244, // s
245,245,246,246,247,248,248,249,249,250,250,251,251,251,252,252, // o
252,253,253,253,254,254,254,254,254,255,255,255,255,255,255,255 }; // n
#ifdef AUTOBLINK
uint32_t timeOfLastBlink = 0L, timeToNextBlink = 0L;
#endif
void frame( // Process motion for a single frame of left or right eye
uint32_t iScale) { // Iris scale (0-1023) passed in
static uint32_t frames = 0; // Used in frame rate calculation
static uint8_t eyeIndex = 0; // eye[] array counter
int32_t eyeX, eyeY;
uint32_t t = micros(); // Time at start of function
Serial.print((++frames * 1000) / (millis() - fstart)); Serial.println("fps");// Show frame rate
if(++eyeIndex >= NUM_EYES) eyeIndex = 0; // Cycle through eyes, 1 per call
// Autonomous X/Y eye motion
// Periodically initiates motion to a new random point, random speed,
// holds there for random period until next motion.
static bool eyeInMotion = false;
static int32_t eyeOldX=512, eyeOldY=512, eyeNewX=512, eyeNewY=512;
static uint32_t eyeMoveStartTime = 0L;
static int32_t eyeMoveDuration = 0L;
int32_t dt = t - eyeMoveStartTime; // uS elapsed since last eye event
if(eyeInMotion) { // Currently moving?
if(dt >= eyeMoveDuration) { // Time up? Destination reached.
eyeInMotion = false; // Stop moving
eyeMoveDuration = random(3000000L); // 0-3 sec stop
eyeMoveStartTime = t; // Save initial time of stop
eyeX = eyeOldX = eyeNewX; // Save position
eyeY = eyeOldY = eyeNewY;
} else { // Move time's not yet fully elapsed -- interpolate position
int16_t e = ease[255 * dt / eyeMoveDuration] + 1; // Ease curve
eyeX = eyeOldX + (((eyeNewX - eyeOldX) * e) / 256); // Interp X
eyeY = eyeOldY + (((eyeNewY - eyeOldY) * e) / 256); // and Y
}
} else { // Eye stopped
eyeX = eyeOldX;
eyeY = eyeOldY;
if(dt > eyeMoveDuration) { // Time up? Begin new move.
int16_t dx, dy;
uint32_t d;
do { // Pick new dest in circle
eyeNewX = random(1024);
eyeNewY = random(1024);
dx = (eyeNewX * 2) - 1023;
dy = (eyeNewY * 2) - 1023;
} while((d = (dx * dx + dy * dy)) > (1023 * 1023)); // Keep trying
eyeMoveDuration = random(50000, 150000);//random(72000, 144000); // ~1/14 - ~1/7 sec
eyeMoveStartTime = t; // Save initial time of move
eyeInMotion = true; // Start move on next frame
}
}
// Blinking
/*
#ifdef AUTOBLINK
// Similar to the autonomous eye movement above -- blink start times
// and durations are random (within ranges).
if((t - timeOfLastBlink) >= timeToNextBlink) { // Start new blink?
timeOfLastBlink = t;
uint32_t blinkDuration = random(36000, 72000); // ~1/28 - ~1/14 sec
// Set up durations for both eyes (if not already winking)
for(uint8_t e=0; e<NUM_EYES; e++) {
if(eye[e].blink.state == NOBLINK) {
eye[e].blink.state = ENBLINK;
eye[e].blink.startTime = t;
eye[e].blink.duration = blinkDuration;
}
}
timeToNextBlink = blinkDuration * 3 + random(4000000);
}
#endif
*/
/*
if(eye[eyeIndex].blink.state) { // Eye currently blinking?
// Check if current blink state time has elapsed
if((t - eye[eyeIndex].blink.startTime) >= eye[eyeIndex].blink.duration) {
// Yes -- increment blink state, unless...
if((eye[eyeIndex].blink.state == ENBLINK) && // Enblinking and...
((digitalRead(BLINK_PIN) == LOW) || // blink or wink held...
digitalRead(eye[eyeIndex].blink.pin) == LOW)) {
// Don't advance state yet -- eye is held closed instead
} else { // No buttons, or other state...
if(++eye[eyeIndex].blink.state > DEBLINK) { // Deblinking finished?
eye[eyeIndex].blink.state = NOBLINK; // No longer blinking
} else { // Advancing from ENBLINK to DEBLINK mode
eye[eyeIndex].blink.duration *= 2; // DEBLINK is 1/2 ENBLINK speed
eye[eyeIndex].blink.startTime = t;
}
}
}
} else { // Not currently blinking...check buttons!
if(digitalRead(BLINK_PIN) == LOW) {
// Manually-initiated blinks have random durations like auto-blink
uint32_t blinkDuration = random(36000, 72000);
for(uint8_t e=0; e<NUM_EYES; e++) {
if(eye[e].blink.state == NOBLINK) {
eye[e].blink.state = ENBLINK;
eye[e].blink.startTime = t;
eye[e].blink.duration = blinkDuration;
}
}
} else if(digitalRead(eye[eyeIndex].blink.pin) == LOW) { // Wink!
eye[eyeIndex].blink.state = ENBLINK;
eye[eyeIndex].blink.startTime = t;
eye[eyeIndex].blink.duration = random(45000, 90000);
}
}
*/
// Process motion, blinking and iris scale into renderable values
// Iris scaling: remap from 0-1023 input to iris map height pixel units
iScale = ((IRIS_MAP_HEIGHT + 1) * 1024) /
(1024 - (iScale * (IRIS_MAP_HEIGHT - 1) / IRIS_MAP_HEIGHT));
// Scale eye X/Y positions (0-1023) to pixel units used by drawEye()
eyeX = map(eyeX, 0, 1023, 0, SCLERA_WIDTH - 128);
eyeY = map(eyeY, 0, 1023, 0, SCLERA_HEIGHT - 128);
if(eyeIndex == 1) eyeX = (SCLERA_WIDTH - 128) - eyeX; // Mirrored display
// Horizontal position is offset so that eyes are very slightly crossed
// to appear fixated (converged) at a conversational distance. Number
// here was extracted from my posterior and not mathematically based.
// I suppose one could get all clever with a range sensor, but for now...
eyeX += 4;
if(eyeX > (SCLERA_WIDTH - 128)) eyeX = (SCLERA_WIDTH - 128);
// Eyelids are rendered using a brightness threshold image. This same
// map can be used to simplify another problem: making the upper eyelid
// track the pupil (eyes tend to open only as much as needed -- e.g. look
// down and the upper eyelid drops). Just sample a point in the upper
// lid map slightly above the pupil to determine the rendering threshold.
static uint8_t uThreshold = 128;
uint8_t lThreshold, n;
#ifdef TRACKING
int16_t sampleX = SCLERA_WIDTH / 2 - (eyeX / 2), // Reduce X influence
sampleY = SCLERA_HEIGHT / 2 - (eyeY + IRIS_HEIGHT / 4);
// Eyelid is slightly asymmetrical, so two readings are taken, averaged
if(sampleY < 0) n = 0;
else n = (pgm_read_byte(upper + sampleY * SCREEN_WIDTH + sampleX) +
pgm_read_byte(upper + sampleY * SCREEN_WIDTH + (SCREEN_WIDTH - 1 - sampleX))) / 2;
uThreshold = (uThreshold * 3 + n) / 4; // Filter/soften motion
// Lower eyelid doesn't track the same way, but seems to be pulled upward
// by tension from the upper lid.
lThreshold = 254 - uThreshold;
#else // No tracking -- eyelids full open unless blink modifies them
uThreshold = lThreshold = 0;
#endif
// The upper/lower thresholds are then scaled relative to the current
// blink position so that blinks work together with pupil tracking.
if(eye[eyeIndex].blink.state) { // Eye currently blinking?
uint32_t s = (t - eye[eyeIndex].blink.startTime);
if(s >= eye[eyeIndex].blink.duration) s = 255; // At or past blink end
else s = 255 * s / eye[eyeIndex].blink.duration; // Mid-blink
s = (eye[eyeIndex].blink.state == DEBLINK) ? 1 + s : 256 - s;
n = (uThreshold * s + 254 * (257 - s)) / 256;
lThreshold = (lThreshold * s + 254 * (257 - s)) / 256;
} else {
n = uThreshold;
}
// Pass all the derived values to the eye-rendering function:
drawEye(eyeIndex, iScale, eyeX, eyeY, n, lThreshold);
}
// AUTONOMOUS IRIS SCALING (if no photocell or dial) -----------------------
#if !defined(IRIS_PIN) || (IRIS_PIN < 0)
// Autonomous iris motion uses a fractal behavior to similate both the major
// reaction of the eye plus the continuous smaller adjustments that occur.
uint16_t oldIris = (IRIS_MIN + IRIS_MAX) / 2, newIris;
void split( // Subdivides motion path into two sub-paths w/randimization
int16_t startValue, // Iris scale value (IRIS_MIN to IRIS_MAX) at start
int16_t endValue, // Iris scale value at end
uint32_t startTime, // micros() at start
int32_t duration, // Start-to-end time, in microseconds
int16_t range) { // Allowable scale value variance when subdividing
if(range >= 8) { // Limit subdvision count, because recursion
range /= 2; // Split range & time in half for subdivision,
duration /= 2; // then pick random center point within range:
int16_t midValue = (startValue + endValue - range) / 2 + random(range);
uint32_t midTime = startTime + duration;
split(startValue, midValue, startTime, duration, range); // First half
split(midValue , endValue, midTime , duration, range); // Second half
} else { // No more subdivisons, do iris motion...
int32_t dt; // Time (micros) since start of motion
int16_t v; // Interim value
while((dt = (micros() - startTime)) < duration) {
v = startValue + (((endValue - startValue) * dt) / duration);
if(v < IRIS_MIN) v = IRIS_MIN; // Clip just in case
else if(v > IRIS_MAX) v = IRIS_MAX;
frame(v); // Draw frame w/interim iris scale value
}
}
}
#endif // !IRIS_PIN
// MAIN LOOP -- runs continuously after setup() ----------------------------
void loop() {
#if defined(IRIS_PIN) && (IRIS_PIN >= 0) // Interactive iris
uint16_t v = 512; //analogRead(IRIS_PIN); // Raw dial/photocell reading
#ifdef IRIS_PIN_FLIP
v = 1023 - v;
#endif
v = map(v, 0, 1023, IRIS_MIN, IRIS_MAX); // Scale to iris range
#ifdef IRIS_SMOOTH // Filter input (gradual motion)
static uint16_t irisValue = (IRIS_MIN + IRIS_MAX) / 2;
irisValue = ((irisValue * 15) + v) / 16;
frame(irisValue);
#else // Unfiltered (immediate motion)
frame(v);
#endif // IRIS_SMOOTH
#else // Autonomous iris scaling -- invoke recursive function
newIris = random(IRIS_MIN, IRIS_MAX);
split(oldIris, newIris, micros(), 10000000L, IRIS_MAX - IRIS_MIN);
oldIris = newIris;
#endif // IRIS_PIN
//screenshotToConsole();
}

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// Include code in this tab and call screenshotToConsole() this dumps an
// image off the screen and sends it to a PC via the serial port in a Run
// Length Encoded format for viewing with a "ILIScreenshotViewer" utility.
// The PC "ILIScreenshotViewer" is part of the ILI9241_due library in the
// Tools folder, that library can be found here:
// https://github.com/marekburiak/ILI9341_Due
// Converted by Bodmer to operate with the TFT_ILI9341_ESP library:
// https://github.com/Bodmer/TFT_ILI9341_ESP
/*
The functions below have been adapted from the ILI9341_due library, the file
header from the .cpp source file is included below:
ILI9341_due_.cpp - Arduino Due library for interfacing with ILI9341-based TFTs
Copyright (c) 2014 Marek Buriak
This library is based on ILI9341_t3 library from Paul Stoffregen
(https://github.com/PaulStoffregen/ILI9341_t3), Adafruit_ILI9341
and Adafruit_GFX libraries from Limor Fried/Ladyada
(https://github.com/adafruit/Adafruit_ILI9341).
This file is part of the Arduino ILI9341_due library.
Sources for this library can be found at https://github.com/marekburiak/ILI9341_Due.
ILI9341_due is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation, either version 2.1 of the License, or
(at your option) any later version.
ILI9341_due is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details:
<http://www.gnu.org/licenses/>.
*/
//====================================================================================
void screenshotToConsole()
{
uint8_t e = 0;
uint8_t lastColor[3];
uint8_t color[3];
uint32_t sameColorPixelCount = 0;
uint16_t sameColorPixelCount16 = 0;
uint32_t sameColorStartIndex = 0;
uint32_t totalImageDataLength = 0;
// delay(1000);
// Header text
Serial.println((eye[e].tft.width() - 1));
Serial.println((eye[e].tft.height() - 1));
Serial.println(F("==== PIXEL DATA START ===="));
// Get first pixel to prime the Run Length Encoded
// Function format is: tft.readRectRGB( x, y, width, height, buffer);
// color is a pointer to a buffer that the RGB 8 bit values are piped into
// the buffer size must be >= (width * height * 3) bytes
eye[e].tft.readRectRGB(0, 0, 1, 1, color); // 1 x 1 so reading 1 pixel at 0,0
lastColor[0] = color[0]; // Red
lastColor[1] = color[1]; // Green
lastColor[2] = color[2]; // Blue
printHex8(color, 3); //Send color of the first pixel to serial port
totalImageDataLength += 6;
sameColorStartIndex = 0;
for (uint32_t py = 0; py < (eye[e].tft.height() - 1); py++)
{
for (uint32_t px = 0; px < (eye[e].tft.width() - 1); px++)
{
uint32_t i = px + eye[e].tft.width() * py;
yield();
if (i)
{
eye[e].tft.readRectRGB(px, py, 1, 1, color);
if (color[0] != lastColor[0] ||
color[1] != lastColor[1] ||
color[2] != lastColor[2])
{
sameColorPixelCount = i - sameColorStartIndex;
if (sameColorPixelCount > 65535)
{
sameColorPixelCount16 = 65535;
printHex16(&sameColorPixelCount16, 1);
printHex8(lastColor, 3);
totalImageDataLength += 10;
sameColorPixelCount16 = sameColorPixelCount - 65535;
}
else
sameColorPixelCount16 = sameColorPixelCount;
printHex16(&sameColorPixelCount16, 1);
printHex8(color, 3);
totalImageDataLength += 10;
sameColorStartIndex = i;
lastColor[0] = color[0];
lastColor[1] = color[1];
lastColor[2] = color[2];
}
}
}
}
sameColorPixelCount = (uint32_t)eye[e].tft.width() * (uint32_t)eye[e].tft.height() - sameColorStartIndex;
if (sameColorPixelCount > 65535)
{
sameColorPixelCount16 = 65535;
printHex16(&sameColorPixelCount16, 1);
printHex8(lastColor, 3);
totalImageDataLength += 10;
sameColorPixelCount16 = sameColorPixelCount - 65535;
}
else
sameColorPixelCount16 = sameColorPixelCount;
printHex16(&sameColorPixelCount16, 1);
totalImageDataLength += 4;
printHex32(&totalImageDataLength, 1);
// Footer text
Serial.println();
Serial.println(F("==== PIXEL DATA END ===="));
Serial.print(F("Total Image Data Length: "));
Serial.println(totalImageDataLength);
}
void printHex8(uint8_t *data, uint8_t length) // prints 8-bit data in hex
{
char tmp[length * 2 + 1];
byte first;
byte second;
for (int i = 0; i < length; i++) {
first = (data[i] >> 4) & 0x0f;
second = data[i] & 0x0f;
// base for converting single digit numbers to ASCII is 48
// base for 10-16 to become upper-case characters A-F is 55
// note: difference is 7
tmp[i * 2] = first + 48;
tmp[i * 2 + 1] = second + 48;
if (first > 9) tmp[i * 2] += 7;
if (second > 9) tmp[i * 2 + 1] += 7;
}
tmp[length * 2] = 0;
Serial.print(tmp);
}
void printHex16(uint16_t *data, uint8_t length) // prints 8-bit data in hex
{
char tmp[length * 4 + 1];
byte first;
byte second;
byte third;
byte fourth;
for (int i = 0; i < length; i++) {
first = (data[i] >> 12) & 0x0f;
second = (data[i] >> 8) & 0x0f;
third = (data[i] >> 4) & 0x0f;
fourth = data[i] & 0x0f;
//Serial << first << " " << second << " " << third << " " << fourth << endl;
// base for converting single digit numbers to ASCII is 48
// base for 10-16 to become upper-case characters A-F is 55
// note: difference is 7
tmp[i * 4] = first + 48;
tmp[i * 4 + 1] = second + 48;
tmp[i * 4 + 2] = third + 48;
tmp[i * 4 + 3] = fourth + 48;
//tmp[i*5+4] = 32; // add trailing space
if (first > 9) tmp[i * 4] += 7;
if (second > 9) tmp[i * 4 + 1] += 7;
if (third > 9) tmp[i * 4 + 2] += 7;
if (fourth > 9) tmp[i * 4 + 3] += 7;
}
tmp[length * 4] = 0;
Serial.print(tmp);
}
void printHex32(uint32_t *data, uint8_t length) // prints 8-bit data in hex
{
char tmp[length * 8 + 1];
byte dataByte[8];
for (int i = 0; i < length; i++) {
dataByte[0] = (data[i] >> 28) & 0x0f;
dataByte[1] = (data[i] >> 24) & 0x0f;
dataByte[2] = (data[i] >> 20) & 0x0f;
dataByte[3] = (data[i] >> 16) & 0x0f;
dataByte[4] = (data[i] >> 12) & 0x0f;
dataByte[5] = (data[i] >> 8) & 0x0f;
dataByte[6] = (data[i] >> 4) & 0x0f;
dataByte[7] = data[i] & 0x0f;
//Serial << first << " " << second << " " << third << " " << fourth << endl;
// base for converting single digit numbers to ASCII is 48
// base for 10-16 to become upper-case characters A-F is 55
// note: difference is 7
tmp[i * 4] = dataByte[0] + 48;
tmp[i * 4 + 1] = dataByte[1] + 48;
tmp[i * 4 + 2] = dataByte[2] + 48;
tmp[i * 4 + 3] = dataByte[3] + 48;
tmp[i * 4 + 4] = dataByte[4] + 48;
tmp[i * 4 + 5] = dataByte[5] + 48;
tmp[i * 4 + 6] = dataByte[6] + 48;
tmp[i * 4 + 7] = dataByte[7] + 48;
//tmp[i*5+4] = 32; // add trailing space
if (dataByte[0] > 9) tmp[i * 4] += 7;
if (dataByte[1] > 9) tmp[i * 4 + 1] += 7;
if (dataByte[2] > 9) tmp[i * 4 + 2] += 7;
if (dataByte[3] > 9) tmp[i * 4 + 3] += 7;
if (dataByte[4] > 9) tmp[i * 4 + 4] += 7;
if (dataByte[5] > 9) tmp[i * 4 + 5] += 7;
if (dataByte[6] > 9) tmp[i * 4 + 6] += 7;
if (dataByte[7] > 9) tmp[i * 4 + 7] += 7;
}
tmp[length * 8] = 0;
Serial.print(tmp);
}