zbuffer.h File Reference

#include "zfeatures.h"

Go to the source code of this file.

Data Structures
struct	ZBuffer
struct	ZBufferPoint

Macros
#define	ZB_Z_BITS   16
#define	ZB_POINT_Z_FRAC_BITS   14
#define	ZB_POINT_S_MIN   ( (1<<13) )
#define	ZB_POINT_S_MAX   ( (1<<22)-(1<<13) )
#define	ZB_POINT_T_MIN   ( (1<<21) )
#define	ZB_POINT_T_MAX   ( (1<<30)-(1<<21) )
#define	ZB_POINT_RED_MIN   ( (1<<10) )
#define	ZB_POINT_RED_MAX   ( (1<<16)-(1<<10) )
#define	ZB_POINT_GREEN_MIN   ( (1<<9) )
#define	ZB_POINT_GREEN_MAX   ( (1<<16)-(1<<9) )
#define	ZB_POINT_BLUE_MIN   ( (1<<10) )
#define	ZB_POINT_BLUE_MAX   ( (1<<16)-(1<<10) )
#define	ZB_MODE_5R6G5B   1 /* true color 16 bits */
#define	ZB_MODE_INDEX   2 /* color index 8 bits */
#define	ZB_MODE_RGBA   3 /* 32 bit rgba mode */
#define	ZB_MODE_RGB24   4 /* 24 bit rgb mode */
#define	ZB_NB_COLORS   225 /* number of colors for 8 bit display */
#define	RGB_TO_PIXEL(r, g, b)    (((r) & 0xF800) | (((g) >> 5) & 0x07E0) | ((b) >> 11))
#define	PSZB   2
#define	PSZSH   4

Typedefs
typedef unsigned short	PIXEL
typedef void(*	ZB_fillTriangleFunc) (ZBuffer *, ZBufferPoint *, ZBufferPoint *, ZBufferPoint *)

Functions
ZBuffer *	ZB_open (int xsize, int ysize, int mode, int nb_colors, unsigned char *color_indexes, int *color_table, void *frame_buffer)
void	ZB_close (ZBuffer *zb)
void	ZB_resize (ZBuffer *zb, void *frame_buffer, int xsize, int ysize)
void	ZB_clear (ZBuffer *zb, int clear_z, int z, int clear_color, int r, int g, int b)
void	ZB_copyFrameBuffer (ZBuffer *zb, void *buf, int linesize)
void	ZB_initDither (ZBuffer *zb, int nb_colors, unsigned char *color_indexes, int *color_table)
void	ZB_closeDither (ZBuffer *zb)
void	ZB_ditherFrameBuffer (ZBuffer *zb, unsigned char *dest, int linesize)
void	ZB_plot (ZBuffer *zb, ZBufferPoint *p)
void	ZB_line (ZBuffer *zb, ZBufferPoint *p1, ZBufferPoint *p2)
void	ZB_line_z (ZBuffer *zb, ZBufferPoint *p1, ZBufferPoint *p2)
void	ZB_setTexture (ZBuffer *zb, PIXEL *texture)
void	ZB_fillTriangleFlat (ZBuffer *zb, ZBufferPoint *p1, ZBufferPoint *p2, ZBufferPoint *p3)
void	ZB_fillTriangleSmooth (ZBuffer *zb, ZBufferPoint *p1, ZBufferPoint *p2, ZBufferPoint *p3)
void	ZB_fillTriangleMapping (ZBuffer *zb, ZBufferPoint *p1, ZBufferPoint *p2, ZBufferPoint *p3)
void	ZB_fillTriangleMappingPerspective (ZBuffer *zb, ZBufferPoint *p0, ZBufferPoint *p1, ZBufferPoint *p2)
void	gl_free (void *p)
void *	gl_malloc (int size)
void *	gl_zalloc (int size)

Macro Definition Documentation

PSZB

#define PSZB   2

Definition at line 49 of file zbuffer.h.

PSZSH

#define PSZSH   4

Definition at line 50 of file zbuffer.h.

RGB_TO_PIXEL

#define RGB_TO_PIXEL	(		r,
			g,
			b
	)		(((r) & 0xF800) | (((g) >> 5) & 0x07E0) | ((b) >> 11))

Definition at line 46 of file zbuffer.h.

ZB_MODE_5R6G5B

#define ZB_MODE_5R6G5B   1 /* true color 16 bits */

Definition at line 27 of file zbuffer.h.

ZB_MODE_INDEX

#define ZB_MODE_INDEX   2 /* color index 8 bits */

Definition at line 28 of file zbuffer.h.

ZB_MODE_RGB24

#define ZB_MODE_RGB24   4 /* 24 bit rgb mode */

Definition at line 30 of file zbuffer.h.

ZB_MODE_RGBA

#define ZB_MODE_RGBA   3 /* 32 bit rgba mode */

Definition at line 29 of file zbuffer.h.

ZB_NB_COLORS

#define ZB_NB_COLORS   225 /* number of colors for 8 bit display */

Definition at line 31 of file zbuffer.h.

ZB_POINT_BLUE_MAX

#define ZB_POINT_BLUE_MAX   ( (1<<16)-(1<<10) )

Definition at line 24 of file zbuffer.h.

ZB_POINT_BLUE_MIN

#define ZB_POINT_BLUE_MIN   ( (1<<10) )

Definition at line 23 of file zbuffer.h.

ZB_POINT_GREEN_MAX

#define ZB_POINT_GREEN_MAX   ( (1<<16)-(1<<9) )

Definition at line 22 of file zbuffer.h.

ZB_POINT_GREEN_MIN

#define ZB_POINT_GREEN_MIN   ( (1<<9) )

Definition at line 21 of file zbuffer.h.

ZB_POINT_RED_MAX

#define ZB_POINT_RED_MAX   ( (1<<16)-(1<<10) )

Definition at line 20 of file zbuffer.h.

ZB_POINT_RED_MIN

#define ZB_POINT_RED_MIN   ( (1<<10) )

Definition at line 19 of file zbuffer.h.

ZB_POINT_S_MAX

#define ZB_POINT_S_MAX   ( (1<<22)-(1<<13) )

Definition at line 15 of file zbuffer.h.

ZB_POINT_S_MIN

#define ZB_POINT_S_MIN   ( (1<<13) )

Definition at line 14 of file zbuffer.h.

ZB_POINT_T_MAX

#define ZB_POINT_T_MAX   ( (1<<30)-(1<<21) )

Definition at line 17 of file zbuffer.h.

ZB_POINT_T_MIN

#define ZB_POINT_T_MIN   ( (1<<21) )

Definition at line 16 of file zbuffer.h.

ZB_POINT_Z_FRAC_BITS

#define ZB_POINT_Z_FRAC_BITS   14

Definition at line 12 of file zbuffer.h.

ZB_Z_BITS

#define ZB_Z_BITS   16

Definition at line 10 of file zbuffer.h.

Typedef Documentation

PIXEL

typedef unsigned short PIXEL

Definition at line 48 of file zbuffer.h.

ZB_fillTriangleFunc

typedef void(* ZB_fillTriangleFunc) (ZBuffer *, ZBufferPoint *, ZBufferPoint *, ZBufferPoint *)

Definition at line 145 of file zbuffer.h.

Function Documentation

gl_free()

void gl_free

(

void *

p

)

Definition at line 8 of file memory.c.

gl_malloc()

void * gl_malloc

(

int

size

)

Definition at line 13 of file memory.c.

gl_zalloc()

void * gl_zalloc

(

int

size

)

Definition at line 18 of file memory.c.

ZB_clear()

void ZB_clear	(	ZBuffer *	zb,
		int	clear_z,
		int	z,
		int	clear_color,
		int	r,
		int	g,
		int	b
	)

Definition at line 489 of file zbuffer.c.

ZB_close()

void ZB_close

(

ZBuffer *

zb

)

Definition at line 75 of file zbuffer.c.

ZB_closeDither()

void ZB_closeDither

(

ZBuffer *

zb

)

Definition at line 79 of file zdither.c.

ZB_copyFrameBuffer()

void ZB_copyFrameBuffer	(	ZBuffer *	zb,
		void *	buf,
		int	linesize
	)

Definition at line 274 of file zbuffer.c.

ZB_ditherFrameBuffer()

void ZB_ditherFrameBuffer	(	ZBuffer *	zb,
		unsigned char *	dest,
		int	linesize
	)

Definition at line 109 of file zdither.c.

ZB_fillTriangleFlat()

void ZB_fillTriangleFlat	(	ZBuffer *	zb,
		ZBufferPoint *	p1,
		ZBufferPoint *	p2,
		ZBufferPoint *	p3
	)

Definition at line 6 of file ztriangle.c.

ZB_fillTriangleMapping()

void ZB_fillTriangleMapping	(	ZBuffer *	zb,
		ZBufferPoint *	p1,
		ZBufferPoint *	p2,
		ZBufferPoint *	p3
	)

Definition at line 179 of file ztriangle.c.

ZB_fillTriangleMappingPerspective()

void ZB_fillTriangleMappingPerspective	(	ZBuffer *	zb,
		ZBufferPoint *	p0,
		ZBufferPoint *	p1,
		ZBufferPoint *	p2
	)

Definition at line 236 of file ztriangle.c.

ZB_fillTriangleSmooth()

void ZB_fillTriangleSmooth	(	ZBuffer *	zb,
		ZBufferPoint *	p1,
		ZBufferPoint *	p2,
		ZBufferPoint *	p3
	)

Definition at line 64 of file ztriangle.c.

ZB_initDither()

void ZB_initDither	(	ZBuffer *	zb,
		int	nb_colors,
		unsigned char *	color_indexes,
		int *	color_table
	)

Definition at line 39 of file zdither.c.

ZB_line()

void ZB_line	(	ZBuffer *	zb,
		ZBufferPoint *	p1,
		ZBufferPoint *	p2
	)

Definition at line 71 of file zline.c.

ZB_line_z()

void ZB_line_z	(	ZBuffer *	zb,
		ZBufferPoint *	p1,
		ZBufferPoint *	p2
	)

Definition at line 56 of file zline.c.

ZB_open()

ZBuffer * ZB_open	(	int	xsize,
		int	ysize,
		int	mode,
		int	nb_colors,
		unsigned char *	color_indexes,
		int *	color_table,
		void *	frame_buffer
	)

Definition at line 12 of file zbuffer.c.

ZB_plot()

void ZB_plot	(	ZBuffer *	zb,
		ZBufferPoint *	p
	)

Definition at line 6 of file zline.c.

ZB_resize()

void ZB_resize	(	ZBuffer *	zb,
		void *	frame_buffer,
		int	xsize,
		int	ysize
	)

Definition at line 89 of file zbuffer.c.

ZB_setTexture()

void ZB_setTexture	(	ZBuffer *	zb,
		PIXEL *	texture
	)

Definition at line 174 of file ztriangle.c.