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This commit is contained in:
Daveo 2001-04-07 21:17:27 +00:00
parent aefdd396f8
commit 4e8b7d3628
11 changed files with 414 additions and 484 deletions
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29
source/utils/utils.cpp
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@ -50,3 +50,32 @@ u8 *Ret;
Ret=(u8*)BasePtr+(Offset);
return(Ret);
}
/*****************************************************************************/
void RotateBox(sBox *B,int W,int H,int _xScale,int _yScale,int _rot)
{
int halfW,halfH;
int ca,sa;
int cw,ch,sw,sh;
int width,height;
int aspect;
halfW=(W*_xScale)>>(12+1);
halfH=(H*_yScale)>>(12+1);
ca=mcos(_rot);
sa=msin(_rot);
cw=(ca*halfW)>>12;
ch=(ca*halfH)>>12;
sw=(sa*halfW)>>12;
sh=(sa*halfH)>>12;
// aspect=(512<<12)/384;//((_fh->H<<12)/_fh->W)/2;
// ch=(ch*aspect)>>12;
// sh=(sh*aspect)>>12;
B->x0=-cw+sh; B->y0=-sw-ch;
B->x1=+cw+sh; B->y1=+sw-ch;
B->x2=-cw-sh; B->y2=-sw+ch;
B->x3=+cw-sh; B->y3=+sw+ch;
}