Functions for rendering bitmap data in frame buffers

Collaboration diagram for Functions for rendering bitmap data in frame buffers:

Data Structures
struct	gfxbitmap_offset
	offsets in pmap[] and bmap[] More...

Typedefs
typedef unsigned int	gfxbitmap_color_t
	Standard color type.
typedef unsigned int	gfxbitmap_color_pix_t
	Specific color type.

Functions
gfxbitmap_color_pix_t	gfxbitmap_convert_color (l4re_video_view_info_t *vi, gfxbitmap_color_t rgb)
	Convert a color.
void	gfxbitmap_fill (l4_uint8_t *vfb, l4re_video_view_info_t *vi, int x, int y, int w, int h, gfxbitmap_color_pix_t color)
	Fill a rectangular area with a color.
void	gfxbitmap_bmap (l4_uint8_t *vfb, l4re_video_view_info_t *vi, l4_int16_t x, l4_int16_t y, l4_uint32_t w, l4_uint32_t h, l4_uint8_t *bmap, gfxbitmap_color_pix_t fgc, gfxbitmap_color_pix_t bgc, struct gfxbitmap_offset *offset, l4_uint8_t mode)
	Fill a rectangular area with a bicolor bitmap pattern.
void	gfxbitmap_set (l4_uint8_t *vfb, l4re_video_view_info_t *vi, l4_int16_t x, l4_int16_t y, l4_uint32_t w, l4_uint32_t h, l4_uint32_t xoffs, l4_uint32_t yoffs, l4_uint8_t *pmap, struct gfxbitmap_offset *offset, l4_uint32_t pwidth)
	Set area from source area.
void	gfxbitmap_copy (l4_uint8_t *dest, l4_uint8_t *src, l4re_video_view_info_t *vi, int x, int y, int w, int h, int dx, int dy)
	Copy a rectangular area.

Detailed Description

Typedef Documentation

gfxbitmap_color_pix_t

typedef unsigned int gfxbitmap_color_pix_t

Specific color type.

This color type is specific for a particular framebuffer, it can be use to write pixel on a framebuffer. Use gfxbitmap_convert_color to convert from gfxbitmap_color_t to gfxbitmap_color_pix_t.

Definition at line 67 of file bitmap.h.

gfxbitmap_color_t

typedef unsigned int gfxbitmap_color_t

Standard color type.

It's a RGB type with 8bits for each channel, regardless of the framebuffer used.

Definition at line 58 of file bitmap.h.

Function Documentation

gfxbitmap_bmap()

void gfxbitmap_bmap	(	l4_uint8_t *	vfb,
		l4re_video_view_info_t *	vi,
		l4_int16_t	x,
		l4_int16_t	y,
		l4_uint32_t	w,
		l4_uint32_t	h,
		l4_uint8_t *	bmap,
		gfxbitmap_color_pix_t	fgc,
		gfxbitmap_color_pix_t	bgc,
		struct gfxbitmap_offset *	offset,
		l4_uint8_t	mode )

Fill a rectangular area with a bicolor bitmap pattern.

Parameters

vfb	Frame buffer.
vi	Frame buffer information structure.
x	X position of area.
y	Y position of area.
w	Width of area.
h	Height of area.
bmap	Bitmap pattern.
fgc	Foreground color.
bgc	Background color.
offset	Offsets.
mode	Mode

See also

pSLIM_BMAP_START_MSB and pSLIM_BMAP_START_LSB.

gfxbitmap_convert_color()

gfxbitmap_color_pix_t gfxbitmap_convert_color	(	l4re_video_view_info_t *	vi,
		gfxbitmap_color_t	rgb )

Convert a color.

Converts a given color in standard format to the format used in the framebuffer.

gfxbitmap_copy()

void gfxbitmap_copy	(	l4_uint8_t *	dest,
		l4_uint8_t *	src,
		l4re_video_view_info_t *	vi,
		int	x,
		int	y,
		int	w,
		int	h,
		int	dx,
		int	dy )

Copy a rectangular area.

Parameters

dest	Destination frame buffer.
src	Source frame buffer.
vi	Frame buffer information structure.
x	Source X position of area.
y	Source Y position of area.
w	Width of area.
h	Height of area.
dx	Source X position of area.
dy	Source Y position of area.

References L4_END_DECLS.

gfxbitmap_fill()

void gfxbitmap_fill	(	l4_uint8_t *	vfb,
		l4re_video_view_info_t *	vi,
		int	x,
		int	y,
		int	w,
		int	h,
		gfxbitmap_color_pix_t	color )

Fill a rectangular area with a color.

Parameters

vfb	Frame buffer.
vi	Frame buffer information structure.
x	X position of area.
y	Y position of area.
w	Width of area.
h	Height of area.
color	Color of area.

gfxbitmap_set()

void gfxbitmap_set	(	l4_uint8_t *	vfb,
		l4re_video_view_info_t *	vi,
		l4_int16_t	x,
		l4_int16_t	y,
		l4_uint32_t	w,
		l4_uint32_t	h,
		l4_uint32_t	xoffs,
		l4_uint32_t	yoffs,
		l4_uint8_t *	pmap,
		struct gfxbitmap_offset *	offset,
		l4_uint32_t	pwidth )

Set area from source area.

Parameters

vfb	Frame buffer.
vi	Frame buffer information structure.
x	X position of area.
y	Y position of area.
w	Width of area.
h	Height of area.
pmap	Source.
xoffs	X offset.
yoffs	Y offset.
offset	Offsets.
pwidth	Width of source in bytes.