ESP32-HUB75-MatrixPanel-DMA: Stutter & freezing when adding wifi control.

Hi i’m having an issue on wifi where it works fine then it freezes it also seems to set the wrong pixels too. Ive attached a video and the code i’ve used.

I’ve adapted ArtNet to use these matrix panels.

#include <ArtnetWifi.h>
#include <Arduino.h>
#include <ESP32-HUB75-MatrixPanel-I2S-DMA.h>
MatrixPanel_I2S_DMA matrix;

// Wifi settings
const char* ssid = "Reece-PC";
const char* password = "";
const int numLeds = 2048; // CHANGE FOR YOUR SETUP
const int numberOfChannels = numLeds * 3; // Total number of channels you want to receive (1 led = 3 channels)
// Art-Net settings
ArtnetWifi artnet;
const int startUniverse = 0; // CHANGE FOR YOUR SETUP most software this is 1, some software send out artnet first universe as 0.
const int maxUniverses = numberOfChannels / 512 + ((numberOfChannels % 512) ? 1 : 0);
bool universesReceived[maxUniverses];
bool sendFrame = 1;
int previousDataLength = 0;

int matrixWidth = 64;
int matrixHeight = 32;
boolean ConnectWifi(void)
{
  boolean state = true;
  int i = 0;

  WiFi.begin(ssid, password);
  Serial.println("");
  Serial.println("Connecting to WiFi");

  // Wait for connection
  Serial.print("Connecting");
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
    if (i > 20){
      state = false;
      break;
    }
    i++;
  }
  if (state){
    Serial.println("");
    Serial.print("Connected to ");
    Serial.println(ssid);
    Serial.print("IP address: ");
    Serial.println(WiFi.localIP());
  } else {
    Serial.println("");
    Serial.println("Connection failed.");
  }

  return state;
}

int* computeLedPos(int ledNo)
{
  int x = 0;
  int y = 0;
  for (int i = 0; i < ledNo; i++)
  {
    if(y = 32) {
      ++x;
      y = 0;
    }
    ++y;
  }
  static int cords[2];
  cords[0] = x;
  cords[1] = y;
  return cords;
}

void initTest()
{

}

void onDmxFrame(uint16_t universe, uint16_t length, uint8_t sequence, uint8_t* data)
{
  sendFrame = 1;
  // set brightness of the whole strip
  if (universe == 15)
  {
    //FastLED.setBrightness(data[0]);
    //FastLED.show();
  }

  // Store which universe has got in
  if ((universe - startUniverse) < maxUniverses) {
    universesReceived[universe - startUniverse] = 1;
  }

  for (int i = 0 ; i < maxUniverses ; i++)
  {
    if (universesReceived[i] == 0)
    {
      //Serial.println("Broke");
      sendFrame = 0;
      break;
    }
  }

  // read universe and put into the right part of the display buffer
  for (int i = 0; i < length / 3; i++)
  {
    int led = i + (universe - startUniverse) * (previousDataLength / 3);
    if (led < numLeds){
      int x = led % matrixWidth;
      int y = led / matrixWidth;
      //Serial.print("X: ");
      //Serial.print(x);
      //Serial.print("Y: ");
      //Serial.print(y);
      //Serial.print("R: ");
      //Serial.print(data[i * 3]);
      //Serial.print("G: ");
      //Serial.print( data[i * 3 + 1]);
      //Serial.print("B: ");
      //Serial.print( data[i * 3 + 2]);
      //Serial.println();
      matrix.drawPixelRGB888(x, y, data[i * 3], data[i * 3 + 1], data[i * 3 + 2]);
      //leds[led] = CRGB(data[i * 3], data[i * 3 + 1], data[i * 3 + 2]);
    }
  }
  previousDataLength = length;

  if (sendFrame)
  {
    matrix.fillScreen(0);
    // Reset universeReceived to 0
    memset(universesReceived, 0, maxUniverses);
  }
}

void setup()
{
  Serial.begin(115200);
  ConnectWifi();
  matrix.begin();
  matrix.fillScreen(0);
  artnet.begin();
  initTest();
  artnet.setArtDmxCallback(onDmxFrame);
}

void loop()
{
  // we call the read function inside the loop
  artnet.read();
} 

Only a few pixels at the top are being set too that maybe me doing the wrong calculation however as the orignal example used FastLED which sets leds using:

leds[led] = CRGB(data[i * 3], data[i * 3 + 1], data[i * 3 + 2]);

And i do:

int x = led % matrixWidth; int y = led / matrixWidth; matrix.drawPixelRGB888(x, y, data[i * 3], data[i * 3 + 1], data[i * 3 + 2]);

Any help would be greatly appreicated.

https://user-images.githubusercontent.com/4342846/102909174-7a12a400-4470-11eb-9eca-b227002c78ab.mp4