mirror of
https://github.com/wled/WLED.git
synced 2025-11-27 11:47:47 +00:00
49a1ae54cf
* removed obsolete "-D CONFIG_LITTLEFS_FOR_IDF_3_2" => this was only for the old "lorol/LITTLEFS" whic is not used any more in WLED * commented out "-D ARDUINO_USB_MODE=1", because users have reported that it leads to boot "hanging" when no USB-CDC is connected * Added buildenv and 32MB partition for esp32s3-WROOM-2 with 32MB flash * disabled "-mfix-esp32-psram-cache-issue" warning for -S2 and -S3 (only necessary for classic esp32 "rev.1", but harmful on S3 or S2)
1226 lines
45 KiB
C++
1226 lines
45 KiB
C++
#include "wled.h"
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#include "fcn_declare.h"
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#include "const.h"
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#ifdef ESP8266
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#include "user_interface.h" // for bootloop detection
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#include <Hash.h> // for SHA1 on ESP8266
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#else
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#include <Update.h>
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#if ESP_IDF_VERSION >= ESP_IDF_VERSION_VAL(4, 4, 0)
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#include "esp32/rtc.h" // for bootloop detection
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#elif ESP_IDF_VERSION >= ESP_IDF_VERSION_VAL(3, 3, 0)
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#include "soc/rtc.h"
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#endif
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#include "mbedtls/sha1.h" // for SHA1 on ESP32
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#include "esp_efuse.h"
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#endif
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//helper to get int value at a position in string
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int getNumVal(const String &req, uint16_t pos)
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{
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return req.substring(pos+3).toInt();
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}
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//helper to get int value with in/decrementing support via ~ syntax
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void parseNumber(const char* str, byte &val, byte minv, byte maxv)
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{
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if (str == nullptr || str[0] == '\0') return;
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if (str[0] == 'r') {val = hw_random8(minv,maxv?maxv:255); return;} // maxv for random cannot be 0
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bool wrap = false;
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if (str[0] == 'w' && strlen(str) > 1) {str++; wrap = true;}
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if (str[0] == '~') {
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int out = atoi(str +1);
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if (out == 0) {
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if (str[1] == '0') return;
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if (str[1] == '-') {
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val = (int)(val -1) < (int)minv ? maxv : min((int)maxv,(val -1)); //-1, wrap around
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} else {
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val = (int)(val +1) > (int)maxv ? minv : max((int)minv,(val +1)); //+1, wrap around
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}
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} else {
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if (wrap && val == maxv && out > 0) out = minv;
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else if (wrap && val == minv && out < 0) out = maxv;
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else {
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out += val;
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if (out > maxv) out = maxv;
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if (out < minv) out = minv;
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}
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val = out;
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}
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return;
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} else if (minv == maxv && minv == 0) { // limits "unset" i.e. both 0
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byte p1 = atoi(str);
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const char* str2 = strchr(str,'~'); // min/max range (for preset cycle, e.g. "1~5~")
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if (str2) {
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byte p2 = atoi(++str2); // skip ~
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if (p2 > 0) {
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while (isdigit(*(++str2))); // skip digits
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parseNumber(str2, val, p1, p2);
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return;
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}
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}
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}
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val = atoi(str);
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}
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//getVal supports inc/decrementing and random ("X~Y(r|~[w][-][Z])" form)
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bool getVal(JsonVariant elem, byte &val, byte vmin, byte vmax) {
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if (elem.is<int>()) {
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if (elem < 0) return false; //ignore e.g. {"ps":-1}
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val = elem;
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return true;
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} else if (elem.is<const char*>()) {
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const char* str = elem;
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size_t len = strnlen(str, 14);
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if (len == 0 || len > 12) return false;
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// fix for #3605 & #4346
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// ignore vmin and vmax and use as specified in API
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if (len > 3 && (strchr(str,'r') || strchr(str,'~') != strrchr(str,'~'))) vmax = vmin = 0; // we have "X~Y(r|~[w][-][Z])" form
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// end fix
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parseNumber(str, val, vmin, vmax);
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return true;
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}
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return false; //key does not exist
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}
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bool getBoolVal(const JsonVariant &elem, bool dflt) {
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if (elem.is<const char*>() && elem.as<const char*>()[0] == 't') {
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return !dflt;
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} else {
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return elem | dflt;
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}
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}
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bool updateVal(const char* req, const char* key, byte &val, byte minv, byte maxv)
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{
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const char *v = strstr(req, key);
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if (v) v += strlen(key);
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else return false;
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parseNumber(v, val, minv, maxv);
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return true;
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}
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static size_t printSetFormInput(Print& settingsScript, const char* key, const char* selector, int value) {
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return settingsScript.printf_P(PSTR("d.Sf.%s.%s=%d;"), key, selector, value);
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}
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size_t printSetFormCheckbox(Print& settingsScript, const char* key, int val) {
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return printSetFormInput(settingsScript, key, PSTR("checked"), val);
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}
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size_t printSetFormValue(Print& settingsScript, const char* key, int val) {
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return printSetFormInput(settingsScript, key, PSTR("value"), val);
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}
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size_t printSetFormIndex(Print& settingsScript, const char* key, int index) {
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return printSetFormInput(settingsScript, key, PSTR("selectedIndex"), index);
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}
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size_t printSetFormValue(Print& settingsScript, const char* key, const char* val) {
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return settingsScript.printf_P(PSTR("d.Sf.%s.value=\"%s\";"),key,val);
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}
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size_t printSetClassElementHTML(Print& settingsScript, const char* key, const int index, const char* val) {
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return settingsScript.printf_P(PSTR("d.getElementsByClassName(\"%s\")[%d].innerHTML=\"%s\";"), key, index, val);
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}
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void prepareHostname(char* hostname)
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{
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sprintf_P(hostname, PSTR("wled-%*s"), 6, escapedMac.c_str() + 6);
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const char *pC = serverDescription;
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unsigned pos = 5; // keep "wled-"
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while (*pC && pos < 24) { // while !null and not over length
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if (isalnum(*pC)) { // if the current char is alpha-numeric append it to the hostname
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hostname[pos] = *pC;
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pos++;
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} else if (*pC == ' ' || *pC == '_' || *pC == '-' || *pC == '+' || *pC == '!' || *pC == '?' || *pC == '*') {
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hostname[pos] = '-';
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pos++;
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}
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// else do nothing - no leading hyphens and do not include hyphens for all other characters.
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pC++;
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}
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//last character must not be hyphen
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if (pos > 5) {
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while (pos > 4 && hostname[pos -1] == '-') pos--;
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hostname[pos] = '\0'; // terminate string (leave at least "wled")
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}
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}
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bool isAsterisksOnly(const char* str, byte maxLen)
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{
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for (unsigned i = 0; i < maxLen; i++) {
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if (str[i] == 0) break;
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if (str[i] != '*') return false;
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}
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//at this point the password contains asterisks only
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return (str[0] != 0); //false on empty string
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}
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//threading/network callback details: https://github.com/wled-dev/WLED/pull/2336#discussion_r762276994
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bool requestJSONBufferLock(uint8_t moduleID)
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{
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if (pDoc == nullptr) {
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DEBUG_PRINTLN(F("ERROR: JSON buffer not allocated!"));
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return false;
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}
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#if defined(ARDUINO_ARCH_ESP32)
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// Use a recursive mutex type in case our task is the one holding the JSON buffer.
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// This can happen during large JSON web transactions. In this case, we continue immediately
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// and then will return out below if the lock is still held.
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if (xSemaphoreTakeRecursive(jsonBufferLockMutex, 250) == pdFALSE) return false; // timed out waiting
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#elif defined(ARDUINO_ARCH_ESP8266)
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// If we're in system context, delay() won't return control to the user context, so there's
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// no point in waiting.
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if (can_yield()) {
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unsigned long now = millis();
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while (jsonBufferLock && (millis()-now < 250)) delay(1); // wait for fraction for buffer lock
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}
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#else
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#error Unsupported task framework - fix requestJSONBufferLock
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#endif
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// If the lock is still held - by us, or by another task
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if (jsonBufferLock) {
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DEBUG_PRINTF_P(PSTR("ERROR: Locking JSON buffer (%d) failed! (still locked by %d)\n"), moduleID, jsonBufferLock);
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#ifdef ARDUINO_ARCH_ESP32
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xSemaphoreGiveRecursive(jsonBufferLockMutex);
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#endif
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return false;
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}
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jsonBufferLock = moduleID ? moduleID : 255;
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DEBUG_PRINTF_P(PSTR("JSON buffer locked. (%d)\n"), jsonBufferLock);
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pDoc->clear();
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return true;
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}
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void releaseJSONBufferLock()
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{
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DEBUG_PRINTF_P(PSTR("JSON buffer released. (%d)\n"), jsonBufferLock);
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jsonBufferLock = 0;
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#ifdef ARDUINO_ARCH_ESP32
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xSemaphoreGiveRecursive(jsonBufferLockMutex);
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#endif
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}
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// extracts effect mode (or palette) name from names serialized string
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// caller must provide large enough buffer for name (including SR extensions)!
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uint8_t extractModeName(uint8_t mode, const char *src, char *dest, uint8_t maxLen)
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{
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if (src == JSON_mode_names || src == nullptr) {
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if (mode < strip.getModeCount()) {
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char lineBuffer[256];
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//strcpy_P(lineBuffer, (const char*)pgm_read_dword(&(WS2812FX::_modeData[mode])));
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strncpy_P(lineBuffer, strip.getModeData(mode), sizeof(lineBuffer)/sizeof(char)-1);
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lineBuffer[sizeof(lineBuffer)/sizeof(char)-1] = '\0'; // terminate string
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size_t len = strlen(lineBuffer);
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size_t j = 0;
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for (; j < maxLen && j < len; j++) {
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if (lineBuffer[j] == '\0' || lineBuffer[j] == '@') break;
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dest[j] = lineBuffer[j];
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}
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dest[j] = 0; // terminate string
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return strlen(dest);
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} else return 0;
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}
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if (src == JSON_palette_names && mode > 255-customPalettes.size()) {
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snprintf_P(dest, maxLen, PSTR("~ Custom %d ~"), 255-mode);
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dest[maxLen-1] = '\0';
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return strlen(dest);
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}
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unsigned qComma = 0;
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bool insideQuotes = false;
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unsigned printedChars = 0;
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char singleJsonSymbol;
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size_t len = strlen_P(src);
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// Find the mode name in JSON
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for (size_t i = 0; i < len; i++) {
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singleJsonSymbol = pgm_read_byte_near(src + i);
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if (singleJsonSymbol == '\0') break;
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if (singleJsonSymbol == '@' && insideQuotes && qComma == mode) break; //stop when SR extension encountered
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switch (singleJsonSymbol) {
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case '"':
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insideQuotes = !insideQuotes;
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break;
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case '[':
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case ']':
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break;
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case ',':
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if (!insideQuotes) qComma++;
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default:
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if (!insideQuotes || (qComma != mode)) break;
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dest[printedChars++] = singleJsonSymbol;
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}
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if ((qComma > mode) || (printedChars >= maxLen)) break;
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}
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dest[printedChars] = '\0';
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return strlen(dest);
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}
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// extracts effect slider data (1st group after @)
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uint8_t extractModeSlider(uint8_t mode, uint8_t slider, char *dest, uint8_t maxLen, uint8_t *var)
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{
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dest[0] = '\0'; // start by clearing buffer
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if (mode < strip.getModeCount()) {
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String lineBuffer = FPSTR(strip.getModeData(mode));
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if (lineBuffer.length() > 0) {
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int start = lineBuffer.indexOf('@'); // String::indexOf() returns an int, not an unsigned; -1 means "not found"
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int stop = lineBuffer.indexOf(';', start);
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if (start>0 && stop>0) {
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String names = lineBuffer.substring(start, stop); // include @
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int nameBegin = 1, nameEnd, nameDefault;
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if (slider < 10) {
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for (size_t i=0; i<=slider; i++) {
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const char *tmpstr;
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dest[0] = '\0'; //clear dest buffer
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if (nameBegin <= 0) break; // there are no more names
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nameEnd = names.indexOf(',', nameBegin);
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if (i == slider) {
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nameDefault = names.indexOf('=', nameBegin); // find default value
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if (nameDefault > 0 && var && ((nameEnd>0 && nameDefault<nameEnd) || nameEnd<0)) {
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*var = (uint8_t)atoi(names.substring(nameDefault+1).c_str());
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}
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if (names.charAt(nameBegin) == '!') {
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switch (slider) {
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case 0: tmpstr = PSTR("FX Speed"); break;
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case 1: tmpstr = PSTR("FX Intensity"); break;
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case 2: tmpstr = PSTR("FX Custom 1"); break;
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case 3: tmpstr = PSTR("FX Custom 2"); break;
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case 4: tmpstr = PSTR("FX Custom 3"); break;
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default: tmpstr = PSTR("FX Custom"); break;
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}
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strncpy_P(dest, tmpstr, maxLen); // copy the name into buffer (replacing previous)
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dest[maxLen-1] = '\0';
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} else {
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if (nameEnd<0) tmpstr = names.substring(nameBegin).c_str(); // did not find ",", last name?
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else tmpstr = names.substring(nameBegin, nameEnd).c_str();
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strlcpy(dest, tmpstr, maxLen); // copy the name into buffer (replacing previous)
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}
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}
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nameBegin = nameEnd+1; // next name (if "," is not found it will be 0)
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} // next slider
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} else if (slider == 255) {
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// palette
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strlcpy(dest, "pal", maxLen);
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names = lineBuffer.substring(stop+1); // stop has index of color slot names
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nameBegin = names.indexOf(';'); // look for palette
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if (nameBegin >= 0) {
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nameEnd = names.indexOf(';', nameBegin+1);
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if (!isdigit(names[nameBegin+1])) nameBegin = names.indexOf('=', nameBegin+1); // look for default value
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if (nameEnd >= 0 && nameBegin > nameEnd) nameBegin = -1;
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if (nameBegin >= 0 && var) {
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*var = (uint8_t)atoi(names.substring(nameBegin+1).c_str());
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}
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}
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}
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// we have slider name (including default value) in the dest buffer
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for (size_t i=0; i<strlen(dest); i++) if (dest[i]=='=') { dest[i]='\0'; break; } // truncate default value
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} else {
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// defaults to just speed and intensity since there is no slider data
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switch (slider) {
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case 0: strncpy_P(dest, PSTR("FX Speed"), maxLen); break;
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case 1: strncpy_P(dest, PSTR("FX Intensity"), maxLen); break;
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}
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dest[maxLen] = '\0'; // strncpy does not necessarily null terminate string
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}
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}
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return strlen(dest);
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}
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return 0;
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}
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// extracts mode parameter defaults from last section of mode data (e.g. "Juggle@!,Trail;!,!,;!;012;sx=16,ix=240")
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int16_t extractModeDefaults(uint8_t mode, const char *segVar)
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{
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if (mode < strip.getModeCount()) {
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char lineBuffer[256];
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strncpy_P(lineBuffer, strip.getModeData(mode), sizeof(lineBuffer)/sizeof(char)-1);
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lineBuffer[sizeof(lineBuffer)/sizeof(char)-1] = '\0'; // terminate string
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if (lineBuffer[0] != 0) {
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char* startPtr = strrchr(lineBuffer, ';'); // last ";" in FX data
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if (!startPtr) return -1;
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char* stopPtr = strstr(startPtr, segVar);
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if (!stopPtr) return -1;
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stopPtr += strlen(segVar) +1; // skip "="
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return atoi(stopPtr);
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}
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}
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return -1;
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}
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void checkSettingsPIN(const char* pin) {
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if (!pin) return;
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if (!correctPIN && millis() - lastEditTime < PIN_RETRY_COOLDOWN) return; // guard against PIN brute force
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bool correctBefore = correctPIN;
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correctPIN = (strlen(settingsPIN) == 0 || strncmp(settingsPIN, pin, 4) == 0);
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lastEditTime = millis();
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}
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uint16_t crc16(const unsigned char* data_p, size_t length) {
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uint8_t x;
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uint16_t crc = 0xFFFF;
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if (!length) return 0x1D0F;
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while (length--) {
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x = crc >> 8 ^ *data_p++;
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x ^= x>>4;
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crc = (crc << 8) ^ ((uint16_t)(x << 12)) ^ ((uint16_t)(x <<5)) ^ ((uint16_t)x);
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}
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return crc;
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}
|
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|
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// fastled beatsin: 1:1 replacements to remove the use of fastled sin16()
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// Generates a 16-bit sine wave at a given BPM that oscillates within a given range. see fastled for details.
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uint16_t beatsin88_t(accum88 beats_per_minute_88, uint16_t lowest, uint16_t highest, uint32_t timebase, uint16_t phase_offset)
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{
|
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uint16_t beat = beat88( beats_per_minute_88, timebase);
|
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uint16_t beatsin (sin16_t( beat + phase_offset) + 32768);
|
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uint16_t rangewidth = highest - lowest;
|
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uint16_t scaledbeat = scale16( beatsin, rangewidth);
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uint16_t result = lowest + scaledbeat;
|
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return result;
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}
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// Generates a 16-bit sine wave at a given BPM that oscillates within a given range. see fastled for details.
|
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uint16_t beatsin16_t(accum88 beats_per_minute, uint16_t lowest, uint16_t highest, uint32_t timebase, uint16_t phase_offset)
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{
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uint16_t beat = beat16( beats_per_minute, timebase);
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uint16_t beatsin = (sin16_t( beat + phase_offset) + 32768);
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uint16_t rangewidth = highest - lowest;
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uint16_t scaledbeat = scale16( beatsin, rangewidth);
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uint16_t result = lowest + scaledbeat;
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return result;
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}
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// Generates an 8-bit sine wave at a given BPM that oscillates within a given range. see fastled for details.
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uint8_t beatsin8_t(accum88 beats_per_minute, uint8_t lowest, uint8_t highest, uint32_t timebase, uint8_t phase_offset)
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{
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uint8_t beat = beat8( beats_per_minute, timebase);
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uint8_t beatsin = sin8_t( beat + phase_offset);
|
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uint8_t rangewidth = highest - lowest;
|
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uint8_t scaledbeat = scale8( beatsin, rangewidth);
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uint8_t result = lowest + scaledbeat;
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return result;
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}
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///////////////////////////////////////////////////////////////////////////////
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// Begin simulateSound (to enable audio enhanced effects to display something)
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///////////////////////////////////////////////////////////////////////////////
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// Currently 4 types defined, to be fine tuned and new types added
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// (only 2 used as stored in 1 bit in segment options, consider switching to a single global simulation type)
|
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typedef enum UM_SoundSimulations {
|
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UMS_BeatSin = 0,
|
||
UMS_WeWillRockYou,
|
||
UMS_10_13,
|
||
UMS_14_3
|
||
} um_soundSimulations_t;
|
||
|
||
um_data_t* simulateSound(uint8_t simulationId)
|
||
{
|
||
static uint8_t samplePeak;
|
||
static float FFT_MajorPeak;
|
||
static uint8_t maxVol;
|
||
static uint8_t binNum;
|
||
|
||
static float volumeSmth;
|
||
static uint16_t volumeRaw;
|
||
static float my_magnitude;
|
||
|
||
//arrays
|
||
uint8_t *fftResult;
|
||
|
||
static um_data_t* um_data = nullptr;
|
||
|
||
if (!um_data) {
|
||
//claim storage for arrays
|
||
fftResult = (uint8_t *)malloc(sizeof(uint8_t) * 16);
|
||
|
||
// initialize um_data pointer structure
|
||
// NOTE!!!
|
||
// This may change as AudioReactive usermod may change
|
||
um_data = new um_data_t;
|
||
um_data->u_size = 8;
|
||
um_data->u_type = new um_types_t[um_data->u_size];
|
||
um_data->u_data = new void*[um_data->u_size];
|
||
um_data->u_data[0] = &volumeSmth;
|
||
um_data->u_data[1] = &volumeRaw;
|
||
um_data->u_data[2] = fftResult;
|
||
um_data->u_data[3] = &samplePeak;
|
||
um_data->u_data[4] = &FFT_MajorPeak;
|
||
um_data->u_data[5] = &my_magnitude;
|
||
um_data->u_data[6] = &maxVol;
|
||
um_data->u_data[7] = &binNum;
|
||
} else {
|
||
// get arrays from um_data
|
||
fftResult = (uint8_t*)um_data->u_data[2];
|
||
}
|
||
|
||
uint32_t ms = millis();
|
||
|
||
switch (simulationId) {
|
||
default:
|
||
case UMS_BeatSin:
|
||
for (int i = 0; i<16; i++)
|
||
fftResult[i] = beatsin8_t(120 / (i+1), 0, 255);
|
||
// fftResult[i] = (beatsin8_t(120, 0, 255) + (256/16 * i)) % 256;
|
||
volumeSmth = fftResult[8];
|
||
break;
|
||
case UMS_WeWillRockYou:
|
||
if (ms%2000 < 200) {
|
||
volumeSmth = hw_random8();
|
||
for (int i = 0; i<5; i++)
|
||
fftResult[i] = hw_random8();
|
||
}
|
||
else if (ms%2000 < 400) {
|
||
volumeSmth = 0;
|
||
for (int i = 0; i<16; i++)
|
||
fftResult[i] = 0;
|
||
}
|
||
else if (ms%2000 < 600) {
|
||
volumeSmth = hw_random8();
|
||
for (int i = 5; i<11; i++)
|
||
fftResult[i] = hw_random8();
|
||
}
|
||
else if (ms%2000 < 800) {
|
||
volumeSmth = 0;
|
||
for (int i = 0; i<16; i++)
|
||
fftResult[i] = 0;
|
||
}
|
||
else if (ms%2000 < 1000) {
|
||
volumeSmth = hw_random8();
|
||
for (int i = 11; i<16; i++)
|
||
fftResult[i] = hw_random8();
|
||
}
|
||
else {
|
||
volumeSmth = 0;
|
||
for (int i = 0; i<16; i++)
|
||
fftResult[i] = 0;
|
||
}
|
||
break;
|
||
case UMS_10_13:
|
||
for (int i = 0; i<16; i++)
|
||
fftResult[i] = perlin8(beatsin8_t(90 / (i+1), 0, 200)*15 + (ms>>10), ms>>3);
|
||
volumeSmth = fftResult[8];
|
||
break;
|
||
case UMS_14_3:
|
||
for (int i = 0; i<16; i++)
|
||
fftResult[i] = perlin8(beatsin8_t(120 / (i+1), 10, 30)*10 + (ms>>14), ms>>3);
|
||
volumeSmth = fftResult[8];
|
||
break;
|
||
}
|
||
|
||
samplePeak = hw_random8() > 250;
|
||
FFT_MajorPeak = 21 + (volumeSmth*volumeSmth) / 8.0f; // walk thru full range of 21hz...8200hz
|
||
maxVol = 31; // this gets feedback fro UI
|
||
binNum = 8; // this gets feedback fro UI
|
||
volumeRaw = volumeSmth;
|
||
my_magnitude = 10000.0f / 8.0f; //no idea if 10000 is a good value for FFT_Magnitude ???
|
||
if (volumeSmth < 1 ) my_magnitude = 0.001f; // noise gate closed - mute
|
||
|
||
return um_data;
|
||
}
|
||
|
||
static const char s_ledmap_tmpl[] PROGMEM = "ledmap%d.json";
|
||
// enumerate all ledmapX.json files on FS and extract ledmap names if existing
|
||
void enumerateLedmaps() {
|
||
StaticJsonDocument<64> filter;
|
||
filter["n"] = true;
|
||
ledMaps = 1;
|
||
for (size_t i=1; i<WLED_MAX_LEDMAPS; i++) {
|
||
char fileName[33] = "/";
|
||
sprintf_P(fileName+1, s_ledmap_tmpl, i);
|
||
bool isFile = WLED_FS.exists(fileName);
|
||
|
||
#ifndef ESP8266
|
||
if (ledmapNames[i-1]) { //clear old name
|
||
free(ledmapNames[i-1]);
|
||
ledmapNames[i-1] = nullptr;
|
||
}
|
||
#endif
|
||
|
||
if (isFile) {
|
||
ledMaps |= 1 << i;
|
||
|
||
#ifndef ESP8266
|
||
if (requestJSONBufferLock(21)) {
|
||
if (readObjectFromFile(fileName, nullptr, pDoc, &filter)) {
|
||
size_t len = 0;
|
||
JsonObject root = pDoc->as<JsonObject>();
|
||
if (!root["n"].isNull()) {
|
||
// name field exists
|
||
const char *name = root["n"].as<const char*>();
|
||
if (name != nullptr) len = strlen(name);
|
||
if (len > 0 && len < 33) {
|
||
ledmapNames[i-1] = static_cast<char*>(malloc(len+1));
|
||
if (ledmapNames[i-1]) strlcpy(ledmapNames[i-1], name, 33);
|
||
}
|
||
}
|
||
if (!ledmapNames[i-1]) {
|
||
char tmp[33];
|
||
snprintf_P(tmp, 32, s_ledmap_tmpl, i);
|
||
len = strlen(tmp);
|
||
ledmapNames[i-1] = static_cast<char*>(malloc(len+1));
|
||
if (ledmapNames[i-1]) strlcpy(ledmapNames[i-1], tmp, 33);
|
||
}
|
||
}
|
||
releaseJSONBufferLock();
|
||
}
|
||
#endif
|
||
}
|
||
|
||
}
|
||
}
|
||
|
||
/*
|
||
* Returns a new, random color wheel index with a minimum distance of 42 from pos.
|
||
*/
|
||
uint8_t get_random_wheel_index(uint8_t pos) {
|
||
uint8_t r = 0, x = 0, y = 0, d = 0;
|
||
while (d < 42) {
|
||
r = hw_random8();
|
||
x = abs(pos - r);
|
||
y = 255 - x;
|
||
d = MIN(x, y);
|
||
}
|
||
return r;
|
||
}
|
||
|
||
// float version of map()
|
||
float mapf(float x, float in_min, float in_max, float out_min, float out_max) {
|
||
return (x - in_min) * (out_max - out_min) / (in_max - in_min) + out_min;
|
||
}
|
||
|
||
uint32_t hashInt(uint32_t s) {
|
||
// borrowed from https://stackoverflow.com/questions/664014/what-integer-hash-function-are-good-that-accepts-an-integer-hash-key
|
||
s = ((s >> 16) ^ s) * 0x45d9f3b;
|
||
s = ((s >> 16) ^ s) * 0x45d9f3b;
|
||
return (s >> 16) ^ s;
|
||
}
|
||
|
||
// 32 bit random number generator, inlining uses more code, use hw_random16() if speed is critical (see fcn_declare.h)
|
||
uint32_t hw_random(uint32_t upperlimit) {
|
||
uint32_t rnd = hw_random();
|
||
uint64_t scaled = uint64_t(rnd) * uint64_t(upperlimit);
|
||
return scaled >> 32;
|
||
}
|
||
|
||
int32_t hw_random(int32_t lowerlimit, int32_t upperlimit) {
|
||
if(lowerlimit >= upperlimit) {
|
||
return lowerlimit;
|
||
}
|
||
uint32_t diff = upperlimit - lowerlimit;
|
||
return hw_random(diff) + lowerlimit;
|
||
}
|
||
|
||
// PSRAM compile time checks to provide info for misconfigured env
|
||
#if defined(BOARD_HAS_PSRAM)
|
||
#if defined(IDF_TARGET_ESP32C3) || defined(ESP8266)
|
||
#error "ESP32-C3 and ESP8266 with PSRAM is not supported, please remove BOARD_HAS_PSRAM definition"
|
||
#else
|
||
#if defined(ARDUINO_ARCH_ESP32) && !defined(CONFIG_IDF_TARGET_ESP32S2) && !defined(CONFIG_IDF_TARGET_ESP32S3) // PSRAM fix only needed for classic esp32
|
||
// BOARD_HAS_PSRAM also means that compiler flag "-mfix-esp32-psram-cache-issue" has to be used for old "rev.1" esp32
|
||
#warning "BOARD_HAS_PSRAM defined, make sure to use -mfix-esp32-psram-cache-issue to prevent issues on rev.1 ESP32 boards \
|
||
see https://docs.espressif.com/projects/esp-idf/en/stable/esp32/api-guides/external-ram.html#esp32-rev-v1-0"
|
||
#endif
|
||
#endif
|
||
#else
|
||
#if !defined(IDF_TARGET_ESP32C3) && !defined(ESP8266)
|
||
#pragma message("BOARD_HAS_PSRAM not defined, not using PSRAM.")
|
||
#endif
|
||
#endif
|
||
|
||
// memory allocation functions with minimum free heap size check
|
||
#ifdef ESP8266
|
||
static void *validateFreeHeap(void *buffer) {
|
||
// make sure there is enough free heap left if buffer was allocated in DRAM region, free it if not
|
||
// note: ESP826 needs very little contiguous heap for webserver, checking total free heap works better
|
||
if (getFreeHeapSize() < MIN_HEAP_SIZE) {
|
||
free(buffer);
|
||
return nullptr;
|
||
}
|
||
return buffer;
|
||
}
|
||
|
||
void *d_malloc(size_t size) {
|
||
// note: using "if (getContiguousFreeHeap() > MIN_HEAP_SIZE + size)" did perform worse in tests with regards to keeping heap healthy and UI working
|
||
void *buffer = malloc(size);
|
||
return validateFreeHeap(buffer);
|
||
}
|
||
|
||
void *d_calloc(size_t count, size_t size) {
|
||
void *buffer = calloc(count, size);
|
||
return validateFreeHeap(buffer);
|
||
}
|
||
|
||
// realloc with malloc fallback, note: on ESPS8266 there is no safe way to ensure MIN_HEAP_SIZE during realloc()s, free buffer and allocate new one
|
||
void *d_realloc_malloc(void *ptr, size_t size) {
|
||
//void *buffer = realloc(ptr, size);
|
||
//buffer = validateFreeHeap(buffer);
|
||
//if (buffer) return buffer; // realloc successful
|
||
//d_free(ptr); // free old buffer if realloc failed (or min heap was exceeded)
|
||
//return d_malloc(size); // fallback to malloc
|
||
free(ptr);
|
||
return d_malloc(size);
|
||
}
|
||
#else
|
||
static void *validateFreeHeap(void *buffer) {
|
||
// make sure there is enough free heap left if buffer was allocated in DRAM region, free it if not
|
||
// TODO: between allocate and free, heap can run low (async web access), only IDF V5 allows for a pre-allocation-check of all free blocks
|
||
if ((uintptr_t)buffer > SOC_DRAM_LOW && (uintptr_t)buffer < SOC_DRAM_HIGH && getContiguousFreeHeap() < MIN_HEAP_SIZE) {
|
||
free(buffer);
|
||
return nullptr;
|
||
}
|
||
return buffer;
|
||
}
|
||
|
||
void *d_malloc(size_t size) {
|
||
void *buffer;
|
||
#if defined(CONFIG_IDF_TARGET_ESP32C3) || defined(CONFIG_IDF_TARGET_ESP32S2) || defined(CONFIG_IDF_TARGET_ESP32S3)
|
||
// the newer ESP32 variants have byte-accessible fast RTC memory that can be used as heap, access speed is on-par with DRAM
|
||
// the system does prefer normal DRAM until full, since free RTC memory is ~7.5k only, its below the minimum heap threshold and needs to be allocated explicitly
|
||
// use RTC RAM for small allocations to improve fragmentation or if DRAM is running low
|
||
if (size < 256 || getContiguousFreeHeap() < 2*MIN_HEAP_SIZE + size)
|
||
buffer = heap_caps_malloc_prefer(size, 2, MALLOC_CAP_RTCRAM, MALLOC_CAP_INTERNAL | MALLOC_CAP_8BIT);
|
||
else
|
||
#endif
|
||
buffer = heap_caps_malloc(size, MALLOC_CAP_INTERNAL | MALLOC_CAP_8BIT); // allocate in any available heap memory
|
||
buffer = validateFreeHeap(buffer); // make sure there is enough free heap left
|
||
#ifdef BOARD_HAS_PSRAM
|
||
if (!buffer)
|
||
return heap_caps_malloc(size, MALLOC_CAP_SPIRAM | MALLOC_CAP_8BIT); // DRAM failed, use PSRAM if available
|
||
#endif
|
||
return buffer;
|
||
}
|
||
|
||
void *d_calloc(size_t count, size_t size) {
|
||
void *buffer = d_malloc(count * size);
|
||
if (buffer) memset(buffer, 0, count * size); // clear allocated buffer
|
||
return buffer;
|
||
}
|
||
|
||
// realloc with malloc fallback, original buffer is freed if realloc fails but not copied!
|
||
void *d_realloc_malloc(void *ptr, size_t size) {
|
||
void *buffer = heap_caps_realloc(ptr, size, MALLOC_CAP_INTERNAL | MALLOC_CAP_8BIT);
|
||
buffer = validateFreeHeap(buffer);
|
||
if (buffer) return buffer; // realloc successful
|
||
d_free(ptr); // free old buffer if realloc failed (or min heap was exceeded)
|
||
return d_malloc(size); // fallback to malloc
|
||
}
|
||
|
||
#ifdef BOARD_HAS_PSRAM
|
||
// p_xalloc: prefer PSRAM, use DRAM as fallback
|
||
void *p_malloc(size_t size) {
|
||
void *buffer = heap_caps_malloc_prefer(size, 2, MALLOC_CAP_SPIRAM | MALLOC_CAP_8BIT, MALLOC_CAP_INTERNAL | MALLOC_CAP_8BIT);
|
||
return validateFreeHeap(buffer);
|
||
}
|
||
|
||
void *p_calloc(size_t count, size_t size) {
|
||
void *buffer = p_malloc(count * size);
|
||
if (buffer) memset(buffer, 0, count * size); // clear allocated buffer
|
||
return buffer;
|
||
}
|
||
|
||
// realloc with malloc fallback, original buffer is freed if realloc fails but not copied!
|
||
void *p_realloc_malloc(void *ptr, size_t size) {
|
||
void *buffer = heap_caps_realloc(ptr, size, MALLOC_CAP_SPIRAM | MALLOC_CAP_8BIT);
|
||
if (buffer) return buffer; // realloc successful
|
||
p_free(ptr); // free old buffer if realloc failed
|
||
return p_malloc(size); // fallback to malloc
|
||
}
|
||
#endif
|
||
#endif
|
||
|
||
// allocation function for buffers like pixel-buffers and segment data
|
||
// optimises the use of memory types to balance speed and heap availability, always favours DRAM if possible
|
||
// if multiple conflicting types are defined, the lowest bits of "type" take priority (see fcn_declare.h for types)
|
||
void *allocate_buffer(size_t size, uint32_t type) {
|
||
void *buffer = nullptr;
|
||
#ifdef CONFIG_IDF_TARGET_ESP32
|
||
// only classic ESP32 has "32bit accessible only" aka IRAM type. Using it frees up normal DRAM for other purposes
|
||
// this memory region is used for IRAM_ATTR functions, whatever is left is unused and can be used for pixel buffers
|
||
// prefer this type over PSRAM as it is slightly faster, except for _pixels where it is on-par as PSRAM-caching does a good job for mostly sequential access
|
||
if (type & BFRALLOC_NOBYTEACCESS) {
|
||
// prefer 32bit region, then PSRAM, fallback to any heap. Note: if adding "INTERNAL"-flag this wont work
|
||
buffer = heap_caps_malloc_prefer(size, 3, MALLOC_CAP_32BIT, MALLOC_CAP_SPIRAM, MALLOC_CAP_8BIT);
|
||
buffer = validateFreeHeap(buffer);
|
||
}
|
||
else
|
||
#endif
|
||
#if !defined(BOARD_HAS_PSRAM)
|
||
buffer = d_malloc(size);
|
||
#else
|
||
if (type & BFRALLOC_PREFER_DRAM) {
|
||
if (getContiguousFreeHeap() < 3*(MIN_HEAP_SIZE/2) + size && size > PSRAM_THRESHOLD)
|
||
buffer = p_malloc(size); // prefer PSRAM for large allocations & when DRAM is low
|
||
else
|
||
buffer = d_malloc(size); // allocate in DRAM if enough free heap is available, PSRAM as fallback
|
||
}
|
||
else if (type & BFRALLOC_ENFORCE_DRAM)
|
||
buffer = heap_caps_malloc(size, MALLOC_CAP_INTERNAL | MALLOC_CAP_8BIT); // use DRAM only, otherwise return nullptr
|
||
else if (type & BFRALLOC_PREFER_PSRAM) {
|
||
// if DRAM is plenty, prefer it over PSRAM for speed, reserve enough DRAM for segment data: if MAX_SEGMENT_DATA is exceeded, always uses PSRAM
|
||
if (getContiguousFreeHeap() > 4*MIN_HEAP_SIZE + size + ((uint32_t)(MAX_SEGMENT_DATA - Segment::getUsedSegmentData())))
|
||
buffer = d_malloc(size);
|
||
else
|
||
buffer = p_malloc(size); // prefer PSRAM
|
||
}
|
||
else if (type & BFRALLOC_ENFORCE_PSRAM)
|
||
buffer = heap_caps_malloc(size, MALLOC_CAP_SPIRAM | MALLOC_CAP_8BIT); // use PSRAM only, otherwise return nullptr
|
||
buffer = validateFreeHeap(buffer);
|
||
#endif
|
||
if (buffer && (type & BFRALLOC_CLEAR))
|
||
memset(buffer, 0, size); // clear allocated buffer
|
||
/*
|
||
#if !defined(ESP8266) && defined(WLED_DEBUG)
|
||
if (buffer) {
|
||
DEBUG_PRINTF_P(PSTR("*Buffer allocated: size:%d, address:%p"), size, (uintptr_t)buffer);
|
||
if ((uintptr_t)buffer > SOC_DRAM_LOW && (uintptr_t)buffer < SOC_DRAM_HIGH)
|
||
DEBUG_PRINTLN(F(" in DRAM"));
|
||
#ifndef CONFIG_IDF_TARGET_ESP32C3
|
||
else if ((uintptr_t)buffer > SOC_EXTRAM_DATA_LOW && (uintptr_t)buffer < SOC_EXTRAM_DATA_HIGH)
|
||
DEBUG_PRINTLN(F(" in PSRAM"));
|
||
#endif
|
||
#ifdef CONFIG_IDF_TARGET_ESP32
|
||
else if ((uintptr_t)buffer > SOC_IRAM_LOW && (uintptr_t)buffer < SOC_IRAM_HIGH)
|
||
DEBUG_PRINTLN(F(" in IRAM")); // only used on ESP32 (MALLOC_CAP_32BIT)
|
||
#else
|
||
else if ((uintptr_t)buffer > SOC_RTC_DRAM_LOW && (uintptr_t)buffer < SOC_RTC_DRAM_HIGH)
|
||
DEBUG_PRINTLN(F(" in RTCRAM")); // not available on ESP32
|
||
#endif
|
||
else
|
||
DEBUG_PRINTLN(F(" in ???")); // unknown (check soc.h for other memory regions)
|
||
} else
|
||
DEBUG_PRINTF_P(PSTR("Buffer allocation failed: size:%d\n"), size);
|
||
#endif
|
||
*/
|
||
return buffer;
|
||
}
|
||
|
||
// bootloop detection and handling
|
||
// checks if the ESP reboots multiple times due to a crash or watchdog timeout
|
||
// if a bootloop is detected: restore settings from backup, then reset settings, then switch boot image (and repeat)
|
||
|
||
#define BOOTLOOP_INTERVAL_MILLIS 120000 // time limit between crashes: 120 seconds (2 minutes)
|
||
#define BOOTLOOP_THRESHOLD 5 // number of consecutive crashes to trigger bootloop detection
|
||
#define BOOTLOOP_ACTION_RESTORE 0 // default action: restore config from /bkp.cfg.json
|
||
#define BOOTLOOP_ACTION_RESET 1 // if restore does not work, reset config (rename /cfg.json to /rst.cfg.json)
|
||
#define BOOTLOOP_ACTION_OTA 2 // swap the boot partition
|
||
#define BOOTLOOP_ACTION_DUMP 3 // nothing seems to help, dump files to serial and reboot (until hardware reset)
|
||
|
||
// Platform-agnostic abstraction
|
||
enum class ResetReason {
|
||
Power,
|
||
Software,
|
||
Crash,
|
||
Brownout
|
||
};
|
||
|
||
#ifdef ESP8266
|
||
// Place variables in RTC memory via references, since RTC memory is not exposed via the linker in the Non-OS SDK
|
||
// Use an offset of 32 as there's some hints that the first 128 bytes of "user" memory are used by the OTA system
|
||
// Ref: https://github.com/esp8266/Arduino/blob/78d0d0aceacc1553f45ad8154592b0af22d1eede/cores/esp8266/Esp.cpp#L168
|
||
static volatile uint32_t& bl_last_boottime = *(RTC_USER_MEM + 32);
|
||
static volatile uint32_t& bl_crashcounter = *(RTC_USER_MEM + 33);
|
||
static volatile uint32_t& bl_actiontracker = *(RTC_USER_MEM + 34);
|
||
|
||
static inline ResetReason rebootReason() {
|
||
uint32_t resetReason = system_get_rst_info()->reason;
|
||
if (resetReason == REASON_EXCEPTION_RST
|
||
|| resetReason == REASON_WDT_RST
|
||
|| resetReason == REASON_SOFT_WDT_RST)
|
||
return ResetReason::Crash;
|
||
if (resetReason == REASON_SOFT_RESTART)
|
||
return ResetReason::Software;
|
||
return ResetReason::Power;
|
||
}
|
||
|
||
static inline uint32_t getRtcMillis() { return system_get_rtc_time() / 160; }; // rtc ticks ~160000Hz
|
||
|
||
#else
|
||
// variables in RTC_NOINIT memory persist between reboots (but not on hardware reset)
|
||
RTC_NOINIT_ATTR static uint32_t bl_last_boottime;
|
||
RTC_NOINIT_ATTR static uint32_t bl_crashcounter;
|
||
RTC_NOINIT_ATTR static uint32_t bl_actiontracker;
|
||
|
||
static inline ResetReason rebootReason() {
|
||
esp_reset_reason_t reason = esp_reset_reason();
|
||
if (reason == ESP_RST_BROWNOUT) return ResetReason::Brownout;
|
||
if (reason == ESP_RST_SW) return ResetReason::Software;
|
||
if (reason == ESP_RST_PANIC || reason == ESP_RST_WDT || reason == ESP_RST_INT_WDT || reason == ESP_RST_TASK_WDT) return ResetReason::Crash;
|
||
return ResetReason::Power;
|
||
}
|
||
|
||
#if ESP_IDF_VERSION >= ESP_IDF_VERSION_VAL(4, 4, 0)
|
||
static inline uint32_t getRtcMillis() { return esp_rtc_get_time_us() / 1000; }
|
||
#elif ESP_IDF_VERSION >= ESP_IDF_VERSION_VAL(3, 3, 0)
|
||
static inline uint32_t getRtcMillis() { return rtc_time_slowclk_to_us(rtc_time_get(), rtc_clk_slow_freq_get_hz()) / 1000; }
|
||
#endif
|
||
|
||
void bootloopCheckOTA() { bl_actiontracker = BOOTLOOP_ACTION_OTA; } // swap boot image if bootloop is detected instead of restoring config
|
||
|
||
#endif
|
||
|
||
// detect bootloop by checking the reset reason and the time since last boot
|
||
static bool detectBootLoop() {
|
||
uint32_t rtctime = getRtcMillis();
|
||
bool result = false;
|
||
|
||
switch(rebootReason()) {
|
||
case ResetReason::Power:
|
||
bl_actiontracker = BOOTLOOP_ACTION_RESTORE; // init action tracker if not an intentional reboot (e.g. from OTA or bootloop handler)
|
||
// fall through
|
||
case ResetReason::Software:
|
||
// no crash detected, reset counter
|
||
bl_crashcounter = 0;
|
||
break;
|
||
|
||
case ResetReason::Crash:
|
||
{
|
||
DEBUG_PRINTLN(F("crash detected!"));
|
||
uint32_t rebootinterval = rtctime - bl_last_boottime;
|
||
if (rebootinterval < BOOTLOOP_INTERVAL_MILLIS) {
|
||
bl_crashcounter++;
|
||
if (bl_crashcounter >= BOOTLOOP_THRESHOLD) {
|
||
DEBUG_PRINTLN(F("!BOOTLOOP DETECTED!"));
|
||
bl_crashcounter = 0;
|
||
if(bl_actiontracker > BOOTLOOP_ACTION_DUMP) bl_actiontracker = BOOTLOOP_ACTION_RESTORE; // reset action tracker if out of bounds
|
||
result = true;
|
||
}
|
||
} else {
|
||
// Reset counter on long intervals to track only consecutive short-interval crashes
|
||
bl_crashcounter = 0;
|
||
// TODO: crash reporting goes here
|
||
}
|
||
break;
|
||
}
|
||
|
||
case ResetReason::Brownout:
|
||
// crash due to brownout can't be detected unless using flash memory to store bootloop variables
|
||
DEBUG_PRINTLN(F("brownout detected"));
|
||
//restoreConfig(); // TODO: blindly restoring config if brownout detected is a bad idea, need a better way (if at all)
|
||
break;
|
||
}
|
||
|
||
bl_last_boottime = rtctime; // store current runtime for next reboot
|
||
|
||
return result;
|
||
}
|
||
|
||
void handleBootLoop() {
|
||
DEBUG_PRINTF_P(PSTR("checking for bootloop: time %d, counter %d, action %d\n"), bl_last_boottime, bl_crashcounter, bl_actiontracker);
|
||
if (!detectBootLoop()) return; // no bootloop detected
|
||
|
||
switch(bl_actiontracker) {
|
||
case BOOTLOOP_ACTION_RESTORE:
|
||
restoreConfig();
|
||
++bl_actiontracker;
|
||
break;
|
||
case BOOTLOOP_ACTION_RESET:
|
||
resetConfig();
|
||
++bl_actiontracker;
|
||
break;
|
||
case BOOTLOOP_ACTION_OTA:
|
||
#ifndef ESP8266
|
||
if(Update.canRollBack()) {
|
||
DEBUG_PRINTLN(F("Swapping boot partition..."));
|
||
Update.rollBack(); // swap boot partition
|
||
}
|
||
++bl_actiontracker;
|
||
break;
|
||
#else
|
||
// fall through
|
||
#endif
|
||
case BOOTLOOP_ACTION_DUMP:
|
||
dumpFilesToSerial();
|
||
break;
|
||
}
|
||
|
||
ESP.restart(); // restart cleanly and don't wait for another crash
|
||
}
|
||
|
||
/*
|
||
* Fixed point integer based Perlin noise functions by @dedehai
|
||
* Note: optimized for speed and to mimic fastled inoise functions, not for accuracy or best randomness
|
||
*/
|
||
#define PERLIN_SHIFT 1
|
||
|
||
// calculate gradient for corner from hash value
|
||
static inline __attribute__((always_inline)) int32_t hashToGradient(uint32_t h) {
|
||
// using more steps yields more "detailed" perlin noise but looks less like the original fastled version (adjust PERLIN_SHIFT to compensate, also changes range and needs proper adustment)
|
||
// return (h & 0xFF) - 128; // use PERLIN_SHIFT 7
|
||
// return (h & 0x0F) - 8; // use PERLIN_SHIFT 3
|
||
// return (h & 0x07) - 4; // use PERLIN_SHIFT 2
|
||
return (h & 0x03) - 2; // use PERLIN_SHIFT 1 -> closest to original fastled version
|
||
}
|
||
|
||
// Gradient functions for 1D, 2D and 3D Perlin noise note: forcing inline produces smaller code and makes it 3x faster!
|
||
static inline __attribute__((always_inline)) int32_t gradient1D(uint32_t x0, int32_t dx) {
|
||
uint32_t h = x0 * 0x27D4EB2D;
|
||
h ^= h >> 15;
|
||
h *= 0x92C3412B;
|
||
h ^= h >> 13;
|
||
h ^= h >> 7;
|
||
return (hashToGradient(h) * dx) >> PERLIN_SHIFT;
|
||
}
|
||
|
||
static inline __attribute__((always_inline)) int32_t gradient2D(uint32_t x0, int32_t dx, uint32_t y0, int32_t dy) {
|
||
uint32_t h = (x0 * 0x27D4EB2D) ^ (y0 * 0xB5297A4D);
|
||
h ^= h >> 15;
|
||
h *= 0x92C3412B;
|
||
h ^= h >> 13;
|
||
return (hashToGradient(h) * dx + hashToGradient(h>>PERLIN_SHIFT) * dy) >> (1 + PERLIN_SHIFT);
|
||
}
|
||
|
||
static inline __attribute__((always_inline)) int32_t gradient3D(uint32_t x0, int32_t dx, uint32_t y0, int32_t dy, uint32_t z0, int32_t dz) {
|
||
// fast and good entropy hash from corner coordinates
|
||
uint32_t h = (x0 * 0x27D4EB2D) ^ (y0 * 0xB5297A4D) ^ (z0 * 0x1B56C4E9);
|
||
h ^= h >> 15;
|
||
h *= 0x92C3412B;
|
||
h ^= h >> 13;
|
||
return ((hashToGradient(h) * dx + hashToGradient(h>>(1+PERLIN_SHIFT)) * dy + hashToGradient(h>>(1 + 2*PERLIN_SHIFT)) * dz) * 85) >> (8 + PERLIN_SHIFT); // scale to 16bit, x*85 >> 8 = x/3
|
||
}
|
||
|
||
// fast cubic smoothstep: t*(3 - 2t²), optimized for fixed point, scaled to avoid overflows
|
||
static uint32_t smoothstep(const uint32_t t) {
|
||
uint32_t t_squared = (t * t) >> 16;
|
||
uint32_t factor = (3 << 16) - ((t << 1));
|
||
return (t_squared * factor) >> 18; // scale to avoid overflows and give best resolution
|
||
}
|
||
|
||
// simple linear interpolation for fixed-point values, scaled for perlin noise use
|
||
static inline int32_t lerpPerlin(int32_t a, int32_t b, int32_t t) {
|
||
return a + (((b - a) * t) >> 14); // match scaling with smoothstep to yield 16.16bit values
|
||
}
|
||
|
||
// 1D Perlin noise function that returns a value in range of -24691 to 24689
|
||
int32_t perlin1D_raw(uint32_t x, bool is16bit) {
|
||
// integer and fractional part coordinates
|
||
int32_t x0 = x >> 16;
|
||
int32_t x1 = x0 + 1;
|
||
if(is16bit) x1 = x1 & 0xFF; // wrap back to zero at 0xFF instead of 0xFFFF
|
||
|
||
int32_t dx0 = x & 0xFFFF;
|
||
int32_t dx1 = dx0 - 0x10000;
|
||
// gradient values for the two corners
|
||
int32_t g0 = gradient1D(x0, dx0);
|
||
int32_t g1 = gradient1D(x1, dx1);
|
||
// interpolate and smooth function
|
||
int32_t tx = smoothstep(dx0);
|
||
int32_t noise = lerpPerlin(g0, g1, tx);
|
||
return noise;
|
||
}
|
||
|
||
// 2D Perlin noise function that returns a value in range of -20633 to 20629
|
||
int32_t perlin2D_raw(uint32_t x, uint32_t y, bool is16bit) {
|
||
int32_t x0 = x >> 16;
|
||
int32_t y0 = y >> 16;
|
||
int32_t x1 = x0 + 1;
|
||
int32_t y1 = y0 + 1;
|
||
|
||
if(is16bit) {
|
||
x1 = x1 & 0xFF; // wrap back to zero at 0xFF instead of 0xFFFF
|
||
y1 = y1 & 0xFF;
|
||
}
|
||
|
||
int32_t dx0 = x & 0xFFFF;
|
||
int32_t dy0 = y & 0xFFFF;
|
||
int32_t dx1 = dx0 - 0x10000;
|
||
int32_t dy1 = dy0 - 0x10000;
|
||
|
||
int32_t g00 = gradient2D(x0, dx0, y0, dy0);
|
||
int32_t g10 = gradient2D(x1, dx1, y0, dy0);
|
||
int32_t g01 = gradient2D(x0, dx0, y1, dy1);
|
||
int32_t g11 = gradient2D(x1, dx1, y1, dy1);
|
||
|
||
uint32_t tx = smoothstep(dx0);
|
||
uint32_t ty = smoothstep(dy0);
|
||
|
||
int32_t nx0 = lerpPerlin(g00, g10, tx);
|
||
int32_t nx1 = lerpPerlin(g01, g11, tx);
|
||
|
||
int32_t noise = lerpPerlin(nx0, nx1, ty);
|
||
return noise;
|
||
}
|
||
|
||
// 3D Perlin noise function that returns a value in range of -16788 to 16381
|
||
int32_t perlin3D_raw(uint32_t x, uint32_t y, uint32_t z, bool is16bit) {
|
||
int32_t x0 = x >> 16;
|
||
int32_t y0 = y >> 16;
|
||
int32_t z0 = z >> 16;
|
||
int32_t x1 = x0 + 1;
|
||
int32_t y1 = y0 + 1;
|
||
int32_t z1 = z0 + 1;
|
||
|
||
if(is16bit) {
|
||
x1 = x1 & 0xFF; // wrap back to zero at 0xFF instead of 0xFFFF
|
||
y1 = y1 & 0xFF;
|
||
z1 = z1 & 0xFF;
|
||
}
|
||
|
||
int32_t dx0 = x & 0xFFFF;
|
||
int32_t dy0 = y & 0xFFFF;
|
||
int32_t dz0 = z & 0xFFFF;
|
||
int32_t dx1 = dx0 - 0x10000;
|
||
int32_t dy1 = dy0 - 0x10000;
|
||
int32_t dz1 = dz0 - 0x10000;
|
||
|
||
int32_t g000 = gradient3D(x0, dx0, y0, dy0, z0, dz0);
|
||
int32_t g001 = gradient3D(x0, dx0, y0, dy0, z1, dz1);
|
||
int32_t g010 = gradient3D(x0, dx0, y1, dy1, z0, dz0);
|
||
int32_t g011 = gradient3D(x0, dx0, y1, dy1, z1, dz1);
|
||
int32_t g100 = gradient3D(x1, dx1, y0, dy0, z0, dz0);
|
||
int32_t g101 = gradient3D(x1, dx1, y0, dy0, z1, dz1);
|
||
int32_t g110 = gradient3D(x1, dx1, y1, dy1, z0, dz0);
|
||
int32_t g111 = gradient3D(x1, dx1, y1, dy1, z1, dz1);
|
||
|
||
uint32_t tx = smoothstep(dx0);
|
||
uint32_t ty = smoothstep(dy0);
|
||
uint32_t tz = smoothstep(dz0);
|
||
|
||
int32_t nx0 = lerpPerlin(g000, g100, tx);
|
||
int32_t nx1 = lerpPerlin(g010, g110, tx);
|
||
int32_t nx2 = lerpPerlin(g001, g101, tx);
|
||
int32_t nx3 = lerpPerlin(g011, g111, tx);
|
||
int32_t ny0 = lerpPerlin(nx0, nx1, ty);
|
||
int32_t ny1 = lerpPerlin(nx2, nx3, ty);
|
||
|
||
int32_t noise = lerpPerlin(ny0, ny1, tz);
|
||
return noise;
|
||
}
|
||
|
||
// scaling functions for fastled replacement
|
||
uint16_t perlin16(uint32_t x) {
|
||
return ((perlin1D_raw(x) * 1159) >> 10) + 32803; //scale to 16bit and offset (fastled range: about 4838 to 60766)
|
||
}
|
||
|
||
uint16_t perlin16(uint32_t x, uint32_t y) {
|
||
return ((perlin2D_raw(x, y) * 1537) >> 10) + 32725; //scale to 16bit and offset (fastled range: about 1748 to 63697)
|
||
}
|
||
|
||
uint16_t perlin16(uint32_t x, uint32_t y, uint32_t z) {
|
||
return ((perlin3D_raw(x, y, z) * 1731) >> 10) + 33147; //scale to 16bit and offset (fastled range: about 4766 to 60840)
|
||
}
|
||
|
||
uint8_t perlin8(uint16_t x) {
|
||
return (((perlin1D_raw((uint32_t)x << 8, true) * 1353) >> 10) + 32769) >> 8; //scale to 16 bit, offset, then scale to 8bit
|
||
}
|
||
|
||
uint8_t perlin8(uint16_t x, uint16_t y) {
|
||
return (((perlin2D_raw((uint32_t)x << 8, (uint32_t)y << 8, true) * 1620) >> 10) + 32771) >> 8; //scale to 16 bit, offset, then scale to 8bit
|
||
}
|
||
|
||
uint8_t perlin8(uint16_t x, uint16_t y, uint16_t z) {
|
||
return (((perlin3D_raw((uint32_t)x << 8, (uint32_t)y << 8, (uint32_t)z << 8, true) * 2015) >> 10) + 33168) >> 8; //scale to 16 bit, offset, then scale to 8bit
|
||
}
|
||
|
||
// Platform-agnostic SHA1 computation from String input
|
||
String computeSHA1(const String& input) {
|
||
#ifdef ESP8266
|
||
return sha1(input); // ESP8266 has built-in sha1() function
|
||
#else
|
||
// ESP32: Compute SHA1 hash using mbedtls
|
||
unsigned char shaResult[20]; // SHA1 produces 20 bytes
|
||
mbedtls_sha1_context ctx;
|
||
|
||
mbedtls_sha1_init(&ctx);
|
||
mbedtls_sha1_starts_ret(&ctx);
|
||
mbedtls_sha1_update_ret(&ctx, (const unsigned char*)input.c_str(), input.length());
|
||
mbedtls_sha1_finish_ret(&ctx, shaResult);
|
||
mbedtls_sha1_free(&ctx);
|
||
|
||
// Convert to hexadecimal string
|
||
char hexString[41];
|
||
for (int i = 0; i < 20; i++) {
|
||
sprintf(&hexString[i*2], "%02x", shaResult[i]);
|
||
}
|
||
hexString[40] = '\0';
|
||
|
||
return String(hexString);
|
||
#endif
|
||
}
|
||
|
||
#ifdef ESP32
|
||
static String dump_raw_block(esp_efuse_block_t block)
|
||
{
|
||
const int WORDS = 8; // ESP32: 8×32-bit words per block i.e. 256bits
|
||
uint32_t buf[WORDS] = {0};
|
||
|
||
const esp_efuse_desc_t d = {
|
||
.efuse_block = block,
|
||
.bit_start = 0,
|
||
.bit_count = WORDS * 32
|
||
};
|
||
const esp_efuse_desc_t* field[2] = { &d, NULL };
|
||
|
||
esp_err_t err = esp_efuse_read_field_blob(field, buf, WORDS * 32);
|
||
if (err != ESP_OK) {
|
||
return "";
|
||
}
|
||
|
||
String result = "";
|
||
for (const unsigned int i : buf) {
|
||
char line[32];
|
||
sprintf(line, "0x%08X", i);
|
||
result += line;
|
||
}
|
||
return result;
|
||
}
|
||
#endif
|
||
|
||
|
||
// Generate a device ID based on SHA1 hash of MAC address salted with "WLED"
|
||
// Returns: original SHA1 + last 2 chars of double-hashed SHA1 (42 chars total)
|
||
String getDeviceId() {
|
||
static String cachedDeviceId = "";
|
||
if (cachedDeviceId.length() > 0) return cachedDeviceId;
|
||
|
||
uint8_t mac[6];
|
||
WiFi.macAddress(mac);
|
||
char macStr[18];
|
||
sprintf(macStr, "%02x:%02x:%02x:%02x:%02x:%02x", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
|
||
|
||
// The device string is deterministic as it needs to be consistent for the same device, even after a full flash erase
|
||
// MAC is salted with other consistent device info to avoid rainbow table attacks.
|
||
// If the MAC address is known by malicious actors, they could precompute SHA1 hashes to impersonate devices,
|
||
// but as WLED developers are just looking at statistics and not authenticating devices, this is acceptable.
|
||
// If the usage data was exfiltrated, you could not easily determine the MAC from the device ID without brute forcing SHA1
|
||
#ifdef ESP8266
|
||
String deviceString = String(macStr) + "WLED" + ESP.getFlashChipId();
|
||
#else
|
||
String deviceString = String(macStr) + "WLED" + ESP.getChipModel() + ESP.getChipRevision();
|
||
deviceString += dump_raw_block(EFUSE_BLK0);
|
||
deviceString += dump_raw_block(EFUSE_BLK1);
|
||
deviceString += dump_raw_block(EFUSE_BLK2);
|
||
deviceString += dump_raw_block(EFUSE_BLK3);
|
||
#endif
|
||
String firstHash = computeSHA1(deviceString);
|
||
|
||
// Second hash: SHA1 of the first hash
|
||
String secondHash = computeSHA1(firstHash);
|
||
|
||
// Concatenate first hash + last 2 chars of second hash
|
||
cachedDeviceId = firstHash + secondHash.substring(38);
|
||
|
||
return cachedDeviceId;
|
||
}
|
||
|