-void blur_grey_horiz(uint16_t *dest, uint16_t *src, int xsz, int ysz, int radius, int scale);
-void blur_grey_vert(uint16_t *dest, uint16_t *src, int xsz, int ysz, int radius, int scale);
+void blur_horiz(uint16_t *dest, uint16_t *src, int xsz, int ysz, int radius, int scale);
+void blur_vert(uint16_t *dest, uint16_t *src, int xsz, int ysz, int radius, int scale);
+
+void convimg_rgb24_rgb16(uint16_t *dest, unsigned char *src, int xsz, int ysz);
+
+void blitfb(uint16_t *dest, uint16_t *src, int width, int height, int pitch_pix);
+void blit(uint16_t *dest, int destwidth, uint16_t *src, int xsz, int ysz, int pitch_pix);
+void blit_key(uint16_t *dest, int destwidth, uint16_t *src, int xsz, int ysz, int pitch_pix, uint16_t key);