407     f32 rCamOriX, rCamOriY;  in G2DDrawLayer()  local
436     rCamOriX = glob.poCam.rOriX;  in G2DDrawLayer()
439     if ((rCamOriX < 0.0001) && (rCamOriX > -0.0001) )  in G2DDrawLayer()
441         rCamOriX = 0.0001F;  // This is an approximation to a small rotation  in G2DDrawLayer()
454     rTlcX = rFrcX + (((rY * rCamOriX) + (rX * rCamOriY)) * rInvTileWidth);  in G2DDrawLayer()
455     rTlcY = rFrcY + (((rY * rCamOriY) - (rX * rCamOriX)) * rInvTileHeight);  in G2DDrawLayer()
457     rTrcX = rFrcX + (((rY * rCamOriX) - (rX * rCamOriY)) * rInvTileWidth);  in G2DDrawLayer()
458     rTrcY = rFrcY + (((rY * rCamOriY) + (rX * rCamOriX)) * rInvTileHeight);  in G2DDrawLayer()
460     rBlcX = rFrcX - (((rY * rCamOriX) - (rX * rCamOriY)) * rInvTileWidth);  in G2DDrawLayer()
461     rBlcY = rFrcY - (((rY * rCamOriY) + (rX * rCamOriX)) * rInvTileHeight);  in G2DDrawLayer()
463     rBrcX = rFrcX - (((rY * rCamOriX) + (rX * rCamOriY)) * rInvTileWidth);  in G2DDrawLayer()
464     rBrcY = rFrcY - (((rY * rCamOriY) - (rX * rCamOriX)) * rInvTileHeight);  in G2DDrawLayer()
470         if (rCamOriX >= 0)  in G2DDrawLayer()
479             rStep0 = rCamOriX / rCamOriY;  in G2DDrawLayer()
480             rStep1 = -rCamOriY / rCamOriX;  in G2DDrawLayer()
491             rStep0 = -rCamOriY / rCamOriX;       // ALERT: Assumes width==height  in G2DDrawLayer()
492             rStep1 = rCamOriX / rCamOriY;  in G2DDrawLayer()
497         if (rCamOriX >= 0)  in G2DDrawLayer()
506             rStep0 = -rCamOriY / rCamOriX;       // ALERT: Assumes width==height  in G2DDrawLayer()
507             rStep1 = rCamOriX / rCamOriY;  in G2DDrawLayer()
518             rStep0 = rCamOriX / rCamOriY;       // ALERT: Assumes width==height  in G2DDrawLayer()
519             rStep1 = -rCamOriY / rCamOriX;  in G2DDrawLayer()