Function parseImage

rEFIt_UEFI/libeg/nanosvg.cpp:3167–3207

parse embedded PNG image

//parse embedded PNG image
static void parseImage(NSVGparser* p, const char** dict)
{
  //  NSVGattrib* attr = nsvg__getAttr(p);
  NSVGpattern *pt = NULL;
  int i;
  UINTN len = 0;
  float w,h;
  const char *href = NULL;
  UINT8 *tmpData = NULL;
//  EG_IMAGE *NewImage = NULL;
  XImage *NewImage = new XImage;

  for (i = 0; dict[i]; i += 2) {
    if (strcmp(dict[i], "width") == 0) {
      w = nsvg__parseCoordinate(p, dict[i+1], 0.0f, nsvg__actualWidth(p));
    } else if (strcmp(dict[i], "height") == 0) {
      h = nsvg__parseCoordinate(p, dict[i+1], 0.0f, nsvg__actualHeight(p));
    } else if (strcmp(dict[i], "xlink:href") == 0) {
      href = dict[i+1];
    } else {
      nsvg__parseAttr(p, dict[i], dict[i + 1]);
    }
  }
  if (!href || (strstr(href, "data:image/png;") == NULL)) {
    return;
  }
  href = strstr(href, "base64,") + 7;
  if (p->patternFlag) {
    pt = p->patterns; //the last one
  }
  tmpData = (UINT8 *)Base64DecodeClover((char*)href, &len);
  if (len == 0) {
    DBG("image not decoded from base64\n");
  }
//  NewImage = egDecodePNG(tmpData, len, TRUE);
  NewImage->FromPNG(tmpData, len);
  pt->image = (void *)NewImage;
  if (tmpData) {
    FreePool(tmpData);
  }
}

static void parsePattern(NSVGparser* p, const char** dict)
{