fb.c File Reference

#include <stdlib.h>
#include <unistd.h>
#include <str.h>
#include <ddi.h>
#include <sysinfo.h>
#include <align.h>
#include <as.h>
#include <ipc/fb.h>
#include <ipc/ns.h>
#include <ipc/services.h>
#include <kernel/errno.h>
#include <kernel/genarch/fb/visuals.h>
#include <io/color.h>
#include <io/style.h>
#include <async.h>
#include <fibril.h>
#include <bool.h>
#include <stdio.h>
#include <byteorder.h>
#include <io/screenbuffer.h>
#include "font-8x16.h"
#include "fb.h"
#include "main.h"
#include "ppm.h"
#include "pointer.xbm"
#include "pointer_mask.xbm"

Go to the source code of this file.

Data Structures
struct	animation_t
struct	bb_cell_t
	Backbuffer character cell. More...
struct	pixmap_t
struct	viewport_t
Defines
#define	BB_POS(vport, col, row)   ((row) * vport->cols + (col))
#define	BLUE(x, bits)   (((x) >> (8 - (bits))) & ((1 << (bits)) - 1))
#define	COL2X(col)   ((col) * FONT_WIDTH)
#define	DEFAULT_BGCOLOR   0xf0f0f0
#define	DEFAULT_FGCOLOR   0x000000
#define	FB_POS(x, y)   ((y) * screen.scanline + (x) * screen.pixelbytes)
#define	GLYPH_POS(glyph, y, cursor)   (((glyph) + (cursor) * FONT_GLYPHS) * screen.glyphbytes + (y) * screen.glyphscanline)
#define	GLYPH_UNAVAIL   '?'
#define	GREEN(x, bits)   (((x) >> (8 + 8 - (bits))) & ((1 << (bits)) - 1))
#define	MAX_ANIM_LEN   8
#define	MAX_ANIMATIONS   4
#define	MAX_PIXMAPS   256
	Maximum number of saved pixmaps.
#define	MAX_VIEWPORTS   128
	Viewport is a rectangular area on the screen.
#define	RED(x, bits)   (((x) >> (8 + 8 + 8 - (bits))) & ((1 << (bits)) - 1))
#define	ROW2Y(row)   ((row) * FONT_SCANLINES)
#define	X2COL(x)   ((x) / FONT_WIDTH)
#define	Y2ROW(y)   ((y) / FONT_SCANLINES)
Typedefs
typedef void(*)	dg_t (unsigned int x, unsigned int y, bool cursor, uint8_t *glyphs, uint32_t glyph, uint32_t fg_color, uint32_t bg_color)
	Function to draw a glyph.
typedef void(*)	mask_conv_t (void *, bool)
	Function to render a bit mask.
typedef void(*)	rgb_conv_t (void *, uint32_t)
	Function to render a pixel from a RGB value.
Functions
static int	anim_handle (ipc_callid_t callid, ipc_call_t *call, int vp)
static void	anims_tick (void)
	Tick animation one step forward.
static void	backbuf_clear (bb_cell_t *backbuf, size_t len, uint32_t fg_color, uint32_t bg_color)
static void	bgr_0888 (void *dst, uint32_t rgb)
static void	bgr_323 (void *dst, uint32_t rgb)
static void	bgr_888 (void *dst, uint32_t rgb)
static void	bgr_8880 (void *dst, uint32_t rgb)
static void	copy_vp_to_pixmap (viewport_t *vport, pixmap_t *pmap)
static void	cursor_blink (viewport_t *vport)
	Invert cursor, if it is enabled.
static void	cursor_hide (viewport_t *vport)
	Hide cursor if it is shown.
static void	cursor_show (viewport_t *vport)
	Show cursor if cursor showing is enabled.
static void	draw_char (viewport_t *vport, wchar_t c, unsigned int col, unsigned int row)
	Draw character at given position relative to viewport.
static void	draw_filled_rect (unsigned int x0, unsigned int y0, unsigned int x1, unsigned int y1, uint32_t color)
	Draw a filled rectangle.
static void	draw_glyph_aligned (unsigned int x, unsigned int y, bool cursor, uint8_t *glyphs, uint32_t glyph, uint32_t fg_color, uint32_t bg_color)
	Draw a glyph, takes advantage of alignment.
static void	draw_glyph_fallback (unsigned int x, unsigned int y, bool cursor, uint8_t *glyphs, uint32_t glyph, uint32_t fg_color, uint32_t bg_color)
	Draw a glyph, fallback version.
static int	draw_pixmap (int vp, int pm)
	Draw pixmap on screen.
static void	draw_text_data (viewport_t *vport, keyfield_t *data, unsigned int x, unsigned int y, unsigned int w, unsigned int h)
	Draw text data to viewport.
static void	draw_vp_glyph (viewport_t *vport, bool cursor, unsigned int col, unsigned int row)
	Draw glyph at specified position in viewport.
static void	fb_client_connection (ipc_callid_t iid, ipc_call_t *icall)
	Function for handling connections to FB.
int	fb_init (void)
	Initialization of framebuffer.
static int	fb_set_color (viewport_t *vport, sysarg_t fg_color, sysarg_t bg_color, sysarg_t attr)
static int	fb_set_style (viewport_t *vport, sysarg_t style)
static int	find_free_pixmap (void)
	Return first free pixmap.
static void	mask_0888 (void *dst, bool mask)
static void	mask_323 (void *dst, bool mask)
static void	mask_555 (void *dst, bool mask)
static void	mask_565 (void *dst, bool mask)
static void	mask_888 (void *dst, bool mask)
static void	mask_8880 (void *dst, bool mask)
static void	mouse_hide (void)
static void	mouse_move (unsigned int x, unsigned int y)
static void	mouse_show (void)
static int	pixmap_handle (ipc_callid_t callid, ipc_call_t *call, int vp)
	Handler for messages concerning pixmap handling.
static void	putpixel (void *data, unsigned int x, unsigned int y, uint32_t color)
static void	putpixel_pixmap (void *data, unsigned int x, unsigned int y, uint32_t color)
static void	render_glyphs (void)
	Render glyphs.
static void	rgb_0888 (void *dst, uint32_t rgb)
static void	rgb_555_be (void *dst, uint32_t rgb)
static void	rgb_555_le (void *dst, uint32_t rgb)
static void	rgb_565_be (void *dst, uint32_t rgb)
static void	rgb_565_le (void *dst, uint32_t rgb)
static void	rgb_888 (void *dst, uint32_t rgb)
static void	rgb_8880 (void *dst, uint32_t rgb)
static int	rgb_from_attr (attr_rgb_t *rgb, const attrs_t *a)
static int	rgb_from_idx (attr_rgb_t *rgb, sysarg_t fg_color, sysarg_t bg_color, sysarg_t flags)
static int	rgb_from_style (attr_rgb_t *rgb, int style)
static int	save_vp_to_pixmap (viewport_t *vport)
	Save viewport to pixmap.
static bool	screen_init (void *addr, unsigned int xres, unsigned int yres, unsigned int scan, unsigned int visual)
	Initialize framebuffer as a chardev output device.
static int	shm2pixmap (unsigned char *shm, size_t size)
	Create a new pixmap and return appropriate ID.
static bool	shm_handle (ipc_callid_t callid, ipc_call_t *call, int vp)
	Handle shared memory communication calls.
static void	vport_clear (viewport_t *vport)
	Clear viewport.
static int	vport_create (unsigned int x, unsigned int y, unsigned int width, unsigned int height)
	Create new viewport.
static void	vport_redraw (viewport_t *vport)
	Redraw viewport.
static void	vport_scroll (viewport_t *vport, int lines)
	Scroll viewport by the specified number of lines.
Variables
static animation_t	animations [MAX_ANIMATIONS]
static bool	anims_enabled
static bool	client_connected = false
	Allow only 1 connection.
static uint32_t	color_table [16]
static pixmap_t	pixmaps [MAX_PIXMAPS]
static bool	pointer_enabled
static int	pointer_pixmap = -1
static bool	pointer_shown
static int	pointer_vport = -1
static unsigned int	pointer_x
static unsigned int	pointer_y
static viewport_t	viewports [128]

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Detailed Description

Definition in file fb.c.

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Variable Documentation

uint8_t* glyphs

Pre-rendered mask for rendering glyphs.

Specific for the visual.

Definition at line 103 of file fb.c.

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