raster.h File Reference

Provides functions for raster graphics operations. More...

#include "global.h"

Enumerations
enum	BitMapDrawMode { SET , UNSET , SWAP }
	Specifies the mode in which a bitmap should be drawn. More...

Functions
void	black_screen (Screen *base)
	Clears the entire screen by filling it with black.
void	white_screen (Screen *base)
	Clears the entire screen by filling it with white.
void	set_pixel (Screen *base, u16 x, u16 y, Color color)
	Sets a pixel at the specified coordinates to a given color.
void	drawBitMap (Screen *base, const BitMap *bitmap, u16 x_offset, u16 y_offset, BitMapDrawMode draw_mode)
	Draws a bitmap onto the screen at the specified coordinates.
void	drawVerticalLine (Screen *base, u16 x_pos, u16 y_start, u16 y_end)
	Draws a vertical line on the screen.
void	drawHorizontalLine (Screen *base, u16 y_pos, u16 x_start, u16 x_end, BitMapDrawMode mode)
	Draws a horizontal line on the screen.

Detailed Description

Provides functions for raster graphics operations.

This header defines functions for manipulating a screen buffer, including pixel drawing, line drawing, and bitmap rendering.

Enumeration Type Documentation

BitMapDrawMode

enum BitMapDrawMode

Specifies the mode in which a bitmap should be drawn.

This enumeration determines whether the bitmap pixels should be set (drawn as active) or unset (removed from the screen).

Enumerator
SET	Set pixels in the bitmap (turn them on).
UNSET	Unset pixels in the bitmap (turn them off).

Function Documentation

black_screen()

void black_screen

(

Screen *

base

)

Clears the entire screen by filling it with black.

Parameters

base	Pointer to the screen buffer.

drawBitMap()

void drawBitMap	(	Screen *	base,
		const BitMap *	bitmap,
		u16	x_offset,
		u16	y_offset,
		BitMapDrawMode	draw_mode )

Draws a bitmap onto the screen at the specified coordinates.

Parameters

base	Pointer to the screen buffer.
bitmap	Pointer to the bitmap to be drawn.
x_offset	X-coordinate of the top-left corner of the bitmap (must be in-bounds).
y_offset	Y-coordinate of the top-left corner of the bitmap (must be in-bounds).
draw_mode	The drawing mode (SET or UNSET).

drawHorizontalLine()

void drawHorizontalLine	(	Screen *	base,
		u16	y_pos,
		u16	x_start,
		u16	x_end,
		BitMapDrawMode	mode )

Draws a horizontal line on the screen.

Parameters

base	Pointer to the screen buffer.
y_pos	Y-coordinate of the line (must be in-bounds).
x_start	Starting X-coordinate (must be in-bounds, x_start < x_end).
x_end	Ending X-coordinate (must be in-bounds).

drawVerticalLine()

void drawVerticalLine	(	Screen *	base,
		u16	x_pos,
		u16	y_start,
		u16	y_end )

Draws a vertical line on the screen.

Parameters

base	Pointer to the screen buffer.
x_pos	X-coordinate of the line (must be in-bounds).
y_start	Starting Y-coordinate (must be in-bounds, y_start < y_end).
y_end	Ending Y-coordinate (must be in-bounds).

set_pixel()

void set_pixel	(	Screen *	base,
		u16	x,
		u16	y,
		Color	color )

Sets a pixel at the specified coordinates to a given color.

Parameters

base	Pointer to the screen buffer.
x	X-coordinate of the pixel (must be in-bounds & multiple of 8).
y	Y-coordinate of the pixel (must be in-bounds & multiple of 8).
color	The color to set the pixel to.

white_screen()

void white_screen

(

Screen *

base

)

Clears the entire screen by filling it with white.

Parameters

base	Pointer to the screen buffer.