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/* RCSid $Id$ */ |
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/* |
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* Definitions for 4x4 matrix operations |
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*/ |
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#include "copyright.h" |
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#include "fvect.h" |
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typedef FLOAT MAT4[4][4]; |
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#ifdef BSD |
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#define copymat4(m4a,m4b) bcopy((void *)m4b,(void *)m4a,sizeof(MAT4)) |
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#else |
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#define copymat4(m4a,m4b) (void)memcpy((void *)m4a,(void *)m4b,sizeof(MAT4)) |
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#endif |
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#define MAT4IDENT { {1.,0.,0.,0.}, {0.,1.,0.,0.}, \ |
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{0.,0.,1.,0.}, {0.,0.,0.,1.} } |
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extern MAT4 m4ident; |
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#define setident4(m4) copymat4(m4, m4ident) |
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#ifdef NOPROTO |
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extern void multmat4(); |
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extern void multv3(); |
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extern void multp3(); |
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extern int invmat4(); |
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#else |
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extern void multmat4(MAT4 m4a, MAT4 m4b, MAT4 m4c); |
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extern void multv3(FVECT v3a, FVECT v3b, MAT4 m4); |
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extern void multp3(FVECT p3a, FVECT p3b, MAT4 m4); |
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extern int invmat4(MAT4 inverse, MAT4 mat); |
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#endif |
