tonc_sbmp8.c File Reference

#include "tonc_surface.h"
#include "tonc_video.h"

Macros
#define	PXSIZE   sizeof(pixel_t)
#define	PXPTR(psrf, x, y)    (pixel_t*)(psrf->data + (y)*psrf->pitch + (x)*sizeof(pixel_t) )
#define	BLIT_CLIP(_ax, _aw, _w, _bx)

Typedefs
typedef u8	pixel_t

Functions
void	sbmp8_floodfill_internal (const TSurface *dst, int x, int y, u8 clrNew, u8 clrOld)
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.
void	sbmp8_floodfill_internal (const TSurface *dst, int x, int y, pixel_t clrNew, pixel_t clrOld)
	Internal routine for floodfill.

Variables
EWRAM_DATA TSurface	m4_surface
const TSurfaceProcTab	bmp8_tab

Detailed Description

Author

J Vijn

Date

20080127 - 20080128

Todo:

Code consistency.

Macro Definition Documentation

BLIT_CLIP

#define BLIT_CLIP	(		_ax,
			_aw,
			_w,
			_bx
	)

Value:

    do {                                            \
        if( (_ax) >= (_aw) || (_ax)+(_w) <= 0 )     \
            return;                                 \
        if( (_ax)<0 )                               \
        {   _w += (_ax); _bx += (_ax); _ax= 0;  }   \
        if( (_w) > (_aw)-(_ax) )                    \
            _w = (_aw)-(_ax);                       \
    } while(0)

Variable Documentation

bmp8_tab

const TSurfaceProcTab bmp8_tab

Initial value:

=
{
    "bmp8",
    sbmp8_get_pixel,
    sbmp8_plot,
    sbmp8_hline,
    sbmp8_vline,
    sbmp8_line,
    sbmp8_rect,
    sbmp8_frame,
    sbmp8_blit,
    sbmp8_floodfill,
}

m4_surface

EWRAM_DATA TSurface m4_surface

Initial value:

=
{
    (u8*)m4_mem, M4_WIDTH, M4_WIDTH, M4_HEIGHT, SRF_BMP8, 8,
    256, pal_bg_mem
}

Referenced by tte_init_bmp().