RetroFlat Soft Shapes API

Tools for drawing shape primatives. More...

Files
file	retrosft.h
	Tools for drawing shape primatives.

Macros
#define	RETROFLAT_LINE_X   0
#define	RETROFLAT_LINE_Y   1
#define	RETROSOFT_TRACE_LVL   0

Functions
void	retrosoft_line (retroflat_blit_t *target, RETROFLAT_COLOR color, int x1, int y1, int x2, int y2, uint8_t flags)
	Draw a line from x1, y1 to x2, y2.
void	retrosoft_rect (retroflat_blit_t *target, const RETROFLAT_COLOR color_idx, int x, int y, int w, int h, uint8_t flags)
	Draw a rectangle at the given coordinates, with the given dimensions.
void	retrosoft_ellipse (retroflat_blit_t *target, RETROFLAT_COLOR color, int x, int y, int w, int h, uint8_t flags)
	Draw an ellipsoid at the given coordinates, with the given dimensions.

Detailed Description

Tools for drawing shape primatives.

This library is also used in conjunction with retro3D, in order to manipulate texture bitmaps.

Function Documentation

retrosoft_ellipse()

void retrosoft_ellipse	(	retroflat_blit_t *	target,
		RETROFLAT_COLOR	color,
		int	x,
		int	y,
		int	w,
		int	h,
		uint8_t	flags )

Draw an ellipsoid at the given coordinates, with the given dimensions.

Todo

Right now this uses integer polar coordinates; it needs to be redone to use the Midpoint circle algorithm or similar.

Warning

This function does not check if supplied bitmaps are read-only! Such checks should be performed by wrapper functions calling it!

retrosoft_line()

void retrosoft_line	(	retroflat_blit_t *	target,
		RETROFLAT_COLOR	color,
		int	x1,
		int	y1,
		int	x2,
		int	y2,
		uint8_t	flags )

Draw a line from x1, y1 to x2, y2.

Warning

This function does not check if supplied bitmaps are read-only! Such checks should be performed by wrapper functions calling it!

retrosoft_rect()

void retrosoft_rect	(	retroflat_blit_t *	target,
		const RETROFLAT_COLOR	color_idx,
		int	x,
		int	y,
		int	w,
		int	h,
		uint8_t	flags )

Draw a rectangle at the given coordinates, with the given dimensions.

Warning

This function does not check if supplied bitmaps are read-only! Such checks should be performed by wrapper functions calling it!