Function DoScreenshot

Descent3/game.cpp:1273–1322

Does a screenshot and tells the bitmap lib to save out the picture as a tga

// Does a screenshot and tells the bitmap lib to save out the picture as a tga
void DoScreenshot() {
  int count;
  char str[255], filename[255];
  CFILE *infile;
  int done = 0;
  int width = 640, height = 480;

  if (UseHardware) {
    rendering_state rs;
    rend_GetRenderState(&rs);
    width = rs.screen_width;
    height = rs.screen_height;
  }

  StopTime();

  // Tell our renderer lib to take a screen shot
  auto screenshot = rend_Screenshot();

  if (!screenshot || screenshot->getData() == nullptr) {
    AddHUDMessage(TXT_ERRSCRNSHT);
    return;
  }

  // Find a valid filename
  count = 1;
  while (!done) {
    snprintf(str, sizeof(str), "Screenshot%.3d.png", count);
    ddio_MakePath(filename, Base_directory, str, NULL);
    infile = (CFILE *)cfopen(filename, "rb");
    if (infile == NULL) {
      done = 1;
      continue;
    } else
      cfclose(infile);

    count++;
    if (count > 999)
      break;
  }

  // Now save it
  screenshot->saveAsPNG(filename);

  if (Demo_flags != DF_PLAYBACK) {
    AddHUDMessage(TXT_SCRNSHT, filename);
  }

  StartTime();
}