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sign issue

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This commit is contained in:
David Rose 2008-05-12 23:24:57 +00:00
parent 4a099b93f1
commit 1df780dbad
1 changed files with 17 additions and 17 deletions
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34
panda/src/tinydisplay/ztriangle_two.h
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@ -308,7 +308,7 @@ static void FNAME(white_perspective) (ZBuffer *zb,
{ \ { \
register ZPOINT *pz; \ register ZPOINT *pz; \
register PIXEL *pp; \ register PIXEL *pp; \
register unsigned int s,t,z,zz; \ register int s,t,z,zz; \
register int n,dsdx,dtdx; \ register int n,dsdx,dtdx; \
float sz,tz,fz,zinv; \ float sz,tz,fz,zinv; \
n=(x2>>16)-x1; \ n=(x2>>16)-x1; \
@ -324,8 +324,8 @@ static void FNAME(white_perspective) (ZBuffer *zb,
float ss,tt; \ float ss,tt; \
ss=(sz * zinv); \ ss=(sz * zinv); \
tt=(tz * zinv); \ tt=(tz * zinv); \
s=(unsigned int) ss; \ s=(int) ss; \
t=(unsigned int) tt; \ t=(int) tt; \
dsdx= (int)( (dszdx - ss*fdzdx)*zinv ); \ dsdx= (int)( (dszdx - ss*fdzdx)*zinv ); \
dtdx= (int)( (dtzdx - tt*fdzdx)*zinv ); \ dtdx= (int)( (dtzdx - tt*fdzdx)*zinv ); \
CALC_MIPMAP_LEVEL; \ CALC_MIPMAP_LEVEL; \
@ -350,8 +350,8 @@ static void FNAME(white_perspective) (ZBuffer *zb,
float ss,tt; \ float ss,tt; \
ss=(sz * zinv); \ ss=(sz * zinv); \
tt=(tz * zinv); \ tt=(tz * zinv); \
s=(unsigned int) ss; \ s=(int) ss; \
t=(unsigned int) tt; \ t=(int) tt; \
dsdx= (int)( (dszdx - ss*fdzdx)*zinv ); \ dsdx= (int)( (dszdx - ss*fdzdx)*zinv ); \
dtdx= (int)( (dtzdx - tt*fdzdx)*zinv ); \ dtdx= (int)( (dtzdx - tt*fdzdx)*zinv ); \
CALC_MIPMAP_LEVEL; \ CALC_MIPMAP_LEVEL; \
@ -432,9 +432,9 @@ static void FNAME(flat_perspective) (ZBuffer *zb,
{ \ { \
register ZPOINT *pz; \ register ZPOINT *pz; \
register PIXEL *pp; \ register PIXEL *pp; \
register unsigned int s,t,z,zz; \ register int s,t,z,zz; \
register int n,dsdx,dtdx; \ register int n,dsdx,dtdx; \
register unsigned int or1,og1,ob1,oa1; \ register int or1,og1,ob1,oa1; \
float sz,tz,fz,zinv; \ float sz,tz,fz,zinv; \
n=(x2>>16)-x1; \ n=(x2>>16)-x1; \
fz=(float)z1; \ fz=(float)z1; \
@ -453,8 +453,8 @@ static void FNAME(flat_perspective) (ZBuffer *zb,
float ss,tt; \ float ss,tt; \
ss=(sz * zinv); \ ss=(sz * zinv); \
tt=(tz * zinv); \ tt=(tz * zinv); \
s=(unsigned int) ss; \ s=(int) ss; \
t=(unsigned int) tt; \ t=(int) tt; \
dsdx= (int)( (dszdx - ss*fdzdx)*zinv ); \ dsdx= (int)( (dszdx - ss*fdzdx)*zinv ); \
dtdx= (int)( (dtzdx - tt*fdzdx)*zinv ); \ dtdx= (int)( (dtzdx - tt*fdzdx)*zinv ); \
CALC_MIPMAP_LEVEL; \ CALC_MIPMAP_LEVEL; \
@ -479,8 +479,8 @@ static void FNAME(flat_perspective) (ZBuffer *zb,
float ss,tt; \ float ss,tt; \
ss=(sz * zinv); \ ss=(sz * zinv); \
tt=(tz * zinv); \ tt=(tz * zinv); \
s=(unsigned int) ss; \ s=(int) ss; \
t=(unsigned int) tt; \ t=(int) tt; \
dsdx= (int)( (dszdx - ss*fdzdx)*zinv ); \ dsdx= (int)( (dszdx - ss*fdzdx)*zinv ); \
dtdx= (int)( (dtzdx - tt*fdzdx)*zinv ); \ dtdx= (int)( (dtzdx - tt*fdzdx)*zinv ); \
CALC_MIPMAP_LEVEL; \ CALC_MIPMAP_LEVEL; \
@ -569,9 +569,9 @@ static void FNAME(smooth_perspective) (ZBuffer *zb,
{ \ { \
register ZPOINT *pz; \ register ZPOINT *pz; \
register PIXEL *pp; \ register PIXEL *pp; \
register unsigned int s,t,z,zz; \ register int s,t,z,zz; \
register int n,dsdx,dtdx; \ register int n,dsdx,dtdx; \
register unsigned int or1,og1,ob1,oa1; \ register int or1,og1,ob1,oa1; \
float sz,tz,fz,zinv; \ float sz,tz,fz,zinv; \
n=(x2>>16)-x1; \ n=(x2>>16)-x1; \
fz=(float)z1; \ fz=(float)z1; \
@ -590,8 +590,8 @@ static void FNAME(smooth_perspective) (ZBuffer *zb,
float ss,tt; \ float ss,tt; \
ss=(sz * zinv); \ ss=(sz * zinv); \
tt=(tz * zinv); \ tt=(tz * zinv); \
s=(unsigned int) ss; \ s=(int) ss; \
t=(unsigned int) tt; \ t=(int) tt; \
dsdx= (int)( (dszdx - ss*fdzdx)*zinv ); \ dsdx= (int)( (dszdx - ss*fdzdx)*zinv ); \
dtdx= (int)( (dtzdx - tt*fdzdx)*zinv ); \ dtdx= (int)( (dtzdx - tt*fdzdx)*zinv ); \
CALC_MIPMAP_LEVEL; \ CALC_MIPMAP_LEVEL; \
@ -616,8 +616,8 @@ static void FNAME(smooth_perspective) (ZBuffer *zb,
float ss,tt; \ float ss,tt; \
ss=(sz * zinv); \ ss=(sz * zinv); \
tt=(tz * zinv); \ tt=(tz * zinv); \
s=(unsigned int) ss; \ s=(int) ss; \
t=(unsigned int) tt; \ t=(int) tt; \
dsdx= (int)( (dszdx - ss*fdzdx)*zinv ); \ dsdx= (int)( (dszdx - ss*fdzdx)*zinv ); \
dtdx= (int)( (dtzdx - tt*fdzdx)*zinv ); \ dtdx= (int)( (dtzdx - tt*fdzdx)*zinv ); \
CALC_MIPMAP_LEVEL; \ CALC_MIPMAP_LEVEL; \