sw_spans.h File Reference

Go to the source code of this file.

Functions
	if (!img) return
	if (v1->vcoord[1] > v2->vcoord[1])
	if (v1->vcoord[1] > v3->vcoord[1])
	if (v2->vcoord[1] > v3->vcoord[1])
	for (i=0;i< 3;i++)
	if (fz==0)
	for (secondhalf=0;secondhalf<=1;secondhalf++)

Variables
int	y
int	secondhalf
int	xl
int	xld
int	xr
int	xrd
float	sl
float	sld = fdx1*d2 - fdx2*d1
float	sd = fdy2*d1 - fdy1*d2
float	tl
float	tld = fdx1*d2 - fdx2*d1
float	td = fdy2*d1 - fdy1*d2
unsigned int	zl
unsigned int	zld = fdx1*d2 - fdx2*d1
unsigned int	zd = fdy2*d1 - fdy1*d2
unsigned int *restrict	outbuf
unsigned int *restrict	ti = img->data
int	i
const swvert_t *	vlt
const swvert_t *	vlb
const swvert_t *	vrt
const swvert_t *	vrb
int	spanlen
int	numspans
unsigned int *	vplout
int	dx
int	dy
int	recalcside
int	interlace
float	fdx1 = v2->vcoord[0] - v1->vcoord[0]
float	fdy1 = v2->vcoord[1] - v1->vcoord[1]
float	fdx2 = v3->vcoord[0] - v1->vcoord[0]
float	fdy2 = v3->vcoord[1] - v1->vcoord[1]
float	fz = fdx1*fdy2 - fdx2*fdy1
float	d1 = v2->tccoord[0] - v1->tccoord[0]
float	d2 = v3->tccoord[0] - v1->tccoord[0]
	v [0] = v1

Function Documentation

for() [1/2]

for

(

)

for() [2/2]

for

(

secondhalf

= 0; secondhalf <= 1; secondhalf++

)

vlb == v3;

if() [1/5]

if

(

!

img

)

if() [2/5]

if

(

fz

= = 0

)

if() [3/5]

if	(	v1->	vcoord[1],
		v2->	vcoord[1]
	)

if() [4/5]

if	(	v1->	vcoord[1],
		v3->	vcoord[1]
	)

if() [5/5]

if	(	v2->	vcoord[1],
		v3->	vcoord[1]
	)

Variable Documentation

d1

fdx1 *fdy1 *fdx2 *fdy2 * d1 = v2->tccoord[0] - v1->tccoord[0]

d2

d2 = v3->tccoord[0] - v1->tccoord[0]

dx

int dx

dy

int dy

fdx1

fdx1 = v2->vcoord[0] - v1->vcoord[0]

fdx2

fdx2 = v3->vcoord[0] - v1->vcoord[0]

fdy1

fdy1 = v2->vcoord[1] - v1->vcoord[1]

fdy2

fdy2 = v3->vcoord[1] - v1->vcoord[1]

fz

fz = fdx1*fdy2 - fdx2*fdy1

i

int i

interlace

int interlace

numspans

int numspans

outbuf

unsigned int* restrict outbuf

recalcside

int recalcside

sd

sd = fdy2*d1 - fdy1*d2

secondhalf

int secondhalf

sl

float sl

sld

sld = fdx1*d2 - fdx2*d1

spanlen

int spanlen

td

td = fdy2*d1 - fdy1*d2

ti

ti = img->data

tl

float tl

tld

tld = fdx1*d2 - fdx2*d1

v

v[2] = v1

vlb

const swvert_t * vlb

vlt

const swvert_t* vlt

vplout

unsigned int* vplout

vrb

const swvert_t * vrb

vrt

const swvert_t * vrt

xl

int xl

xld

int xld

xr

int xr

xrd

int xrd

y

y

Initial value:

{
        swvert_t *vt

zd

zd = fdy2*d1 - fdy1*d2

zl

unsigned int zl

zld

zld = fdx1*d2 - fdx2*d1