8bpp bitmap surfaces

Functions
u32	sbmp8_get_pixel (const TSurface *src, int x, int y)
	Get the pixel value of src at (x, y).
void	sbmp8_plot (const TSurface *dst, int x, int y, u32 clr)
	Plot a single pixel on a 8-bit buffer.
void	sbmp8_hline (const TSurface *dst, int x1, int y, int x2, u32 clr)
	Draw a horizontal line on an 8-bit buffer.
void	sbmp8_vline (const TSurface *dst, int x, int y1, int y2, u32 clr)
	Draw a vertical line on an 8-bit buffer.
void	sbmp8_line (const TSurface *dst, int x1, int y1, int x2, int y2, u32 clr)
	Draw a line on an 8-bit buffer.
void	sbmp8_rect (const TSurface *dst, int left, int top, int right, int bottom, u32 clr)
	Draw a rectangle in 8-bit mode.
void	sbmp8_frame (const TSurface *dst, int left, int top, int right, int bottom, u32 clr)
	Draw a rectangle in 8-bit mode.
void	sbmp8_blit (const TSurface *dst, int dstX, int dstY, uint width, uint height, const TSurface *src, int srcX, int srcY)
	16bpp blitter. Copies a rectangle from one surface to another.
void	sbmp8_floodfill (const TSurface *dst, int x, int y, u32 clr)
	Floodfill an area of the same color with new color clr.
INLINE void	_sbmp8_plot (const TSurface *dst, int x, int y, u32 clr)
	Plot a single pixel on a 8-bit surface; inline version.
INLINE u32	_sbmp8_get_pixel (const TSurface *src, int x, int y)
	Get the pixel value of src at (x, y); inline version.

Detailed Description

Routines for 8bpp linear surfaces. For use in mode 4 and affine tilemaps.

Function Documentation

sbmp8_blit()

void sbmp8_blit	(	const TSurface *	dst,
		int	dstX,
		int	dstY,
		uint	width,
		uint	height,
		const TSurface *	src,
		int	srcX,
		int	srcY
	)

16bpp blitter. Copies a rectangle from one surface to another.

Parameters

dst	Destination surface.
dstX	Left coord of rectangle on dst.
dstY	Top coord of rectangle on dst.
width	Width of rectangle to blit.
height	Height of rectangle to blit.
src	Source surface.
srcX	Left coord of rectangle on src.
srcY	Top coord of rectangle on src.

Note

The rectangle will be clipped to both src and dst.

References tonccpy().

sbmp8_floodfill()

void sbmp8_floodfill	(	const TSurface *	dst,
		int	x,
		int	y,
		u32	clr
	)

Floodfill an area of the same color with new color clr.

Parameters

dst	Destination surface.
x	X-coordinate.
y	Y-coordinate;
clr	Color.

sbmp8_frame()

void sbmp8_frame	(	const TSurface *	dst,
		int	left,
		int	top,
		int	right,
		int	bottom,
		u32	clr
	)

Draw a rectangle in 8-bit mode.

Parameters

dst	Destination surface.
left	Left side of rectangle;
top	Top side of rectangle.
right	Right side of rectangle.
bottom	Bottom side of rectangle.
clr	Color.

Note

Does normalization, but not bounds checks.

PONDER: RB in- or exclusive?

References sbmp8_vline(), and toncset().

sbmp8_hline()

void sbmp8_hline	(	const TSurface *	dst,
		int	x1,
		int	y,
		int	x2,
		u32	clr
	)

Draw a horizontal line on an 8-bit buffer.

Parameters

dst	Destination surface.
x1	First X-coord.
y	Y-coord.
x2	Second X-coord.
clr	Color.

Note

Does normalization, but not bounds checks.

References toncset().

Referenced by sbmp8_line().

sbmp8_line()

void sbmp8_line	(	const TSurface *	dst,
		int	x1,
		int	y1,
		int	x2,
		int	y2,
		u32	clr
	)

Draw a line on an 8-bit buffer.

Parameters

dst	Destination surface.
x1	First X-coord.
y1	First Y-coord.
x2	Second X-coord.
y2	Second Y-coord.
clr	Color.

Note

Does normalization, but not bounds checks.

References sbmp8_hline(), sbmp8_plot(), and sbmp8_vline().

sbmp8_plot()

void sbmp8_plot	(	const TSurface *	dst,
		int	x,
		int	y,
		u32	clr
	)

Plot a single pixel on a 8-bit buffer.

Parameters

dst	Destination surface.
x	X-coord.
y	Y-coord.
clr	Color.

Note

Slow as fuck. Inline plotting functionality if possible.

Referenced by bmp8_drawg(), bmp8_drawg_t(), and sbmp8_line().

sbmp8_rect()

void sbmp8_rect	(	const TSurface *	dst,
		int	left,
		int	top,
		int	right,
		int	bottom,
		u32	clr
	)

Draw a rectangle in 8-bit mode.

Parameters

dst	Destination surface.
left	Left side of rectangle;
top	Top side of rectangle.
right	Right side of rectangle.
bottom	Bottom side of rectangle.
clr	Color.

Note

Does normalization, but not bounds checks.

References toncset().

Referenced by ase_erase(), bmp8_drawg_b1cos(), and bmp8_erase().

sbmp8_vline()

void sbmp8_vline	(	const TSurface *	dst,
		int	x,
		int	y1,
		int	y2,
		u32	clr
	)

Draw a vertical line on an 8-bit buffer.

Parameters

dst	Destination surface.
x	X-coord.
y1	First Y-coord.
y2	Second Y-coord.
clr	Color.

Note

Does normalization, but not bounds checks.

Referenced by sbmp8_frame(), and sbmp8_line().