44 static GRRotation rotation = GRRotation::NONE;
48   auto swapped = (rotation == GRRotation::LEFT || rotation == GRRotation::RIGHT);  in outside()
99   if (rotation == GRRotation::LEFT) {  in incr_x()
101   } else if (rotation == GRRotation::RIGHT) {  in incr_x()
103   } else if (rotation == GRRotation::DOWN) {  in incr_x()
112   if (rotation == GRRotation::LEFT) {  in incr_y()
114   } else if (rotation == GRRotation::RIGHT) {  in incr_y()
116   } else if (rotation == GRRotation::DOWN) {  in incr_y()
126     case GRRotation::NONE:  in PixelAt()
128     case GRRotation::RIGHT:  in PixelAt()
130     case GRRotation::DOWN:  in PixelAt()
133     case GRRotation::LEFT:  in PixelAt()
274   if (rotation != GRRotation::NONE) {  in gr_blit()
396     gr_rotate(GRRotation::RIGHT);  in gr_init()
398     gr_rotate(GRRotation::DOWN);  in gr_init()
400     gr_rotate(GRRotation::LEFT);  in gr_init()
402     gr_rotate(GRRotation::NONE);  in gr_init()
421   return (rotation == GRRotation::LEFT || rotation == GRRotation::RIGHT)  in gr_fb_width()
427   return (rotation == GRRotation::LEFT || rotation == GRRotation::RIGHT)  in gr_fb_height()
436 void gr_rotate(GRRotation rot) {  in gr_rotate()