| 13 |
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| 14 |
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static double m4tmp[4][4]; /* for efficiency */ |
| 15 |
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| 16 |
+ |
#ifdef BSD |
| 17 |
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#define copymat4(m4a,m4b) bcopy((char *)m4b,(char *)m4a,sizeof(m4tmp)) |
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#else |
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#define copymat4(m4a,m4b) (void)memcpy((char *)m4a,(char *)m4b,sizeof(m4tmp)) |
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extern char *memcpy(); |
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#endif |
| 22 |
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| 23 |
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| 24 |
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setident4(m4) |
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register double v3b[3]; |
| 57 |
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register double m4[4][4]; |
| 58 |
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{ |
| 59 |
< |
register int i; |
| 60 |
< |
|
| 61 |
< |
for (i = 0; i < 3; i++) |
| 57 |
< |
m4tmp[0][i] = v3b[0]*m4[0][i] + |
| 58 |
< |
v3b[1]*m4[1][i] + |
| 59 |
< |
v3b[2]*m4[2][i]; |
| 59 |
> |
m4tmp[0][0] = v3b[0]*m4[0][0] + v3b[1]*m4[1][0] + v3b[2]*m4[2][0]; |
| 60 |
> |
m4tmp[0][1] = v3b[0]*m4[0][1] + v3b[1]*m4[1][1] + v3b[2]*m4[2][1]; |
| 61 |
> |
m4tmp[0][2] = v3b[0]*m4[0][2] + v3b[1]*m4[1][2] + v3b[2]*m4[2][2]; |
| 62 |
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| 63 |
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v3a[0] = m4tmp[0][0]; |
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v3a[1] = m4tmp[0][1]; |
