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polymost.c: rewite widescreen bit code, part 2.

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Use integer math; both args to setaspect are constant.

git-svn-id: https://svn.eduke32.com/eduke32@2910 1a8010ca-5511-0410-912e-c29ae57300e0
This commit is contained in:
helixhorned 2012-08-16 21:48:46 +00:00
parent 20ccab9022
commit 08260dbf25
1 changed files with 9 additions and 9 deletions
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18
polymer/eduke32/build/src/polymost.c
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@ -5638,10 +5638,11 @@ void polymost_dorotatesprite(int32_t sx, int32_t sy, int32_t z, int16_t a, int16
x = xdimenscale; //= scale(xdimen,yxaspect,320);
if (!(dastat & 1024) && ((double)ydim/(double)xdim) <= .75f)
if (!(dastat & 1024) && 4*ydim <= 3*xdim)
{
xdim = (int32_t)((double)ydim * 1.33333333333333334f);
setaspect(65536L,(int32_t)divscale16(ydim*320L,xdim*200L));
xdim = (4*ydim)/3;
// aspect is divscale16(ydim*320, xdim*200)
setaspect(65536, (12<<16)/10);
}
sthelse = scale(sx-(320<<15), scale(xdimen, xdim, oxdim), 320);
@ -5670,10 +5671,10 @@ void polymost_dorotatesprite(int32_t sx, int32_t sy, int32_t z, int16_t a, int16
const int32_t oxdim = xdim;
int32_t xdim = oxdim; // SHADOWS global
if (!(dastat & 1024) && ((double)ydim/(double)xdim) <= .75f)
if (!(dastat & 1024) && 4*ydim <= 3*xdim)
{
xdim = (int32_t)((double)ydim * 1.33333333333333334f);
setaspect(65536L,(int32_t)divscale16(ydim*320L,xdim*200L));
xdim = (4*ydim)/3;
setaspect(65536, (12<<16)/10);
}
x = scale(xdim,yxaspect,320);
@ -5688,10 +5689,9 @@ void polymost_dorotatesprite(int32_t sx, int32_t sy, int32_t z, int16_t a, int16
z = mulscale16(z,x);
}
else if (!(dastat & 1024) && ((double)ydim/(double)xdim) <= .75f)
else if (!(dastat & 1024) && 4*ydim <= 3*xdim)
{
const int32_t ydim = (int32_t)((double)xdim * 0.75f); // SHADOWS global
setaspect(65536L,(int32_t)divscale16(ydim*320L,xdim*200L));
setaspect(65536, (12<<16)/10);
}
d = (double)z/(65536.0*16384.0);