display jpeg

[ghost]

First thank you for the quick response to my last question about that topic.

It is not that it does not work, it is I have problem, to code the call correct, I do not come clear with the parameters, x and y are clear, xmax and ymax, too, but then, a simple line of examble code would help.

Best Regaerds

Rainer

[tobozo]

if the last question had a valid response, please mark the discussion as answered :)

the primitive signatures for drawJpg are :

LGFXBase::drawJpg(
  Stream* stream, 
  int32_t x=0, int32_t y=0, 
  int32_t maxWidth=0, int32_t maxHeight=0, 
  int32_t offsetX=0, int32_t offsetY=0, 
  float scale_x = 1.0f, float scale_y = 0.0f, 
  datum_t datum = datum_t::top_left
);

LGFXBase::drawJpg(
  const uint8_t *jpg_data, uint32_t jpg_len, 
  int32_t x=0, int32_t y=0, 
  int32_t maxWidth=0, int32_t maxHeight=0, 
  int32_t offsetX=0, int32_t offsetY=0, 
  float scale_x = 1.0f, float scale_y = 0.0f, 
  datum_t datum = datum_t::top_left
);

and here's a couple of examples:

    lcd.drawJpg(jpg_data, jpg_data_len, x, y, 0, 0, 0, 0, scaleX, scaleY); // jpg will be zoomed

    fs::File myJpgFile = SD.open("/my_file.jpg");
    if( myJpgFile ) {
      lcd.drawJpg((Stream*)&myJpgFile, x, y);
      myJpgFile.close();
    }

[ghost]

Thank you that helped a lot

here are my working lines of code:

    WebsocketsMessage msg = client.readBlocking();
lcd.drawJpg(( uint8_t*)msg.c_str(), msg.length());