ztriangle.h File Reference

Go to the source code of this file.

Functions
	if (p1->y< p0->y)
	if (p2->y< p0->y)
else	if (p2->y< p1->y)
	if (fz==0) return
	DRAW_INIT ()
	for (part=0;part< 2;part++)

Variables
float	fdx1
float	fdx2 = p2->x - p0->x
float	fdy1 = p1->y - p0->y
float	fdy2 = p2->y - p0->y
float	fz = fdx1 * fdy2 - fdx2 * fdy1
float	d1
float	d2
unsigned short *	pz1 = zb->zbuf + p0->y * zb->xsize
PIXEL *	pp1 = (PIXEL *) ((char *) zb->pbuf + zb->linesize * p0->y)
int	part
int	update_left
int	update_right
int	nb_lines
int	dx1
int	dy1
int	tmp
int	dx2
int	dy2
int	error
int	derror
int	x1
int	dxdy_min
int	dxdy_max
int	x2
int	dx2dy2

Function Documentation

DRAW_INIT()

DRAW_INIT

(

)

for()

for

(

)

Definition at line 140 of file ztriangle.h.

if() [1/4]

if

(

fz

= =0

)

if() [2/4]

if

(

p1->y< p0->

y

)

Definition at line 37 of file ztriangle.h.

if() [3/4]

if

(

p2->y< p0->

y

)

Definition at line 42 of file ztriangle.h.

if() [4/4]

else if

(

p2->y< p1->

y

)

Definition at line 47 of file ztriangle.h.

Variable Documentation

d1

float d1

Definition at line 7 of file ztriangle.h.

d2

float d2

Definition at line 7 of file ztriangle.h.

derror

int derror

Definition at line 14 of file ztriangle.h.

dx1

int dx1

Definition at line 12 of file ztriangle.h.

dx2

int dx2

Definition at line 12 of file ztriangle.h.

dx2dy2

int dx2dy2

Definition at line 17 of file ztriangle.h.

dxdy_max

int dxdy_max

Definition at line 15 of file ztriangle.h.

dxdy_min

int dxdy_min

Definition at line 15 of file ztriangle.h.

dy1

int dy1

Definition at line 12 of file ztriangle.h.

dy2

int dy2

Definition at line 12 of file ztriangle.h.

error

int error

Definition at line 14 of file ztriangle.h.

fdx1

fdx1

Initial value:

{
  ZBufferPoint *t,*pr1,*pr2,*l1,*l2

Definition at line 7 of file ztriangle.h.

fdx2

fdx2 = p2->x - p0->x

Definition at line 7 of file ztriangle.h.

fdy1

fdy1 = p1->y - p0->y

Definition at line 7 of file ztriangle.h.

fdy2

fdy2 = p2->y - p0->y

Definition at line 7 of file ztriangle.h.

fz

fz = fdx1 * fdy2 - fdx2 * fdy1

Definition at line 7 of file ztriangle.h.

nb_lines

int nb_lines

Definition at line 12 of file ztriangle.h.

part

int part

Definition at line 10 of file ztriangle.h.

pp1

fdx1 *fdy1 *fdx2 *fdy2 * pp1 = (PIXEL *) ((char *) zb->pbuf + zb->linesize * p0->y)

Definition at line 9 of file ztriangle.h.

pz1

pz1 = zb->zbuf + p0->y * zb->xsize

Definition at line 8 of file ztriangle.h.

tmp

int tmp

Definition at line 12 of file ztriangle.h.

update_left

int update_left

Definition at line 10 of file ztriangle.h.

update_right

int update_right

Definition at line 10 of file ztriangle.h.

x1

int x1

Definition at line 15 of file ztriangle.h.

x2

int x2

Definition at line 17 of file ztriangle.h.