Method drawJpg

lib/TJpg_Decoder/src/TJpg_Decoder.cpp:200–223

JRESULT TJpg_Decoder::drawJpg(int32_t x, int32_t y, const uint8_t jpeg_data[], uint32_t  data_size) {
  JDEC jdec;
  JRESULT jresult = JDR_OK;

  jpg_source = TJPG_ARRAY;
  array_index = 0;
  array_data  = jpeg_data;
  array_size  = data_size;

  jpeg_x = x;
  jpeg_y = y;

  jdec.swap = _swap;

  // Analyse input data
  jresult = jd_prepare(&jdec, jd_input, workspace, TJPGD_WORKSPACE_SIZE, 0);

  // Extract image and render
  if (jresult == JDR_OK) {
    jresult = jd_decomp(&jdec, jd_output, jpgScale);
  }

  return jresult;
}