interface fb extends service {
		/* Get screen resolution */
		ipcarg_t get_resolution(out ipcarg_t width, out ipcarg_t height);
		
		/* Yield screen */
		ipcarg_t screen_yield(void);
		
		/* Reclaim screen */
		ipcarg_t screen_reclaim(void);
		
		/* Set mouse cursor position on screen */
		ipcarg_t pointer_move(in ipcarg_t x, in ipcarg_t y);
		
		/* Create new viewport */
		ipcarg_t viewport_create(in ipcarg_t origin, in ipcarg_t dimension);
		
		/* Get viewport size in character cells */
		ipcarg_t get_csize(out ipcarg_t width, out ipcarg_t height);
		
		/* Clear viewport character buffer */
		ipcarg_t clear(void);
		
		/* Scroll viewport character buffer */
		ipcarg_t scroll(in ipcarg_t lines);
		
		/* Set active viewport */
		ipcarg_t viewport_switch(in ipcarg_t index);
		
		/* Delete viewport */
		ipcarg_t viewport_delete(in ipcarg_t index);
		
		/* Get color capabilities of the screen */
		ipcarg_t get_color_cap(void);
		
		/* Set abstract text style */
		ipcarg_t set_style(in ipcarg_t style);
		
		/* Set EGA-based text color */
		ipcarg_t set_color(in ipcarg_t fg_color, in ipcarg_t bg_color, in ipcarg_t atrr);
		
		/* Set RGB-based text color */
		ipcarg_t set_rgb_color(in ipcarg_t fg_color, in ipcarg_t bg_color);
		
		/* Put a character to a given position in viewport character buffer */
		ipcarg_t putchar(in ipcarg_t char, in ipcarg_t col, in ipcarg_t row);
		
		/* Set character cursor visibility in viewport */
		ipcarg_t cursor_visibility(in ipcarg_t visible);
		
		/* Set character cursor position in viewport */
		ipcarg_t cursor_goto(in ipcarg_t col, in ipcarg_t row);
		
		/* Prepare memory sharing of bitmaps */
		ipcarg_t prepare_shm(in ipcarg_t as_area_base);
		
		/* Share bitmap or text data */
		ipcarg_t ipc_m_share_out(in ipcarg_t as_area_base, in ipcarg_t as_area_size, out ipcarg_t dst_as_area);
		
		/* Drop memory sharing */
		ipcarg_t drop_shm(void);
		
		/* Draw PPM data from shared memory to viewport */
		ipcarg_t draw_ppm(in ipcarg_t x, in ipcarg_t y);
		
		/* Put characters from shared memory to viewport */
		ipcarg_t draw_text_data(in ipcarg_t x, in ipcarg_t y, in ipcarg_t width, in ipcarg_t height);
		
		/* Convert PPM data from shared memory to pixmap */
		ipcarg_t shm2pixmap(void);
		
		/* Save viewport contents to a pixmap */
		ipcarg_t vp2pixmap(in ipcarg_t vp_index);
		
		/* Draw pixmap to viewport */
		ipcarg_t vp_draw_pixmap(in ipcarg_t vp_index, in ipcarg_t pm_index);
		
		/* Discard pixmap */
		ipcarg_t drop_pixmap(in ipcarg_t pm_index);
		
		/* Create new (empty) animation for a viewport */
		ipcarg_t anim_create(in ipcarg_t vp_index);
		
		/* Append a pixmap to an animation */
		ipcarg_t anim_addpixmap(in ipcarg_t anim_index, in ipcarg_t pm_index);
		
		/* Change a viewport associated with an animation */
		ipcarg_t anim_chgvp(in ipcarg_t anim_index, in ipcarg_t vp_index);
		
		/* Start animation playback */
		ipcarg_t anim_start(in ipcarg_t anim_index);
		
		/* Stop animation playback */
		ipcarg_t anim_stop(in ipcarg_t anim_index);
		
		/* Delete animation */
		ipcarg_t anim_drop(in ipcarg_t anim_index);
	protocol:
		[fb.bp]
};

frame fb {
	provides:
		fb fb;
	requires:
		[/uspace/lib/libc/requires]
		ns ns;
	initialization:
		!ns.ipc_m_connect_to_me /* fb */
	protocol:
		[/uspace/lib/libc/protocol]
};