int host_video_init(int *stride, int no_dblbuf); void host_video_finish(void); void *host_video_flip(void); void host_video_change_bpp(int bpp); void host_video_update_pal(unsigned int *pal); void host_video_blit4(const unsigned char *src, int w, int h); void host_video_blit8(const unsigned char *src, int w, int h); void host_video_blit16(const unsigned short *src, int w, int h);