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Diff of /trunk/src/lib/common/eigen3x3.c
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| revision 1984, Fri Jul 27 23:50:39 2012 UTC | revision 1985, Fri Jul 27 23:51:22 2012 UTC | |
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| # | Line 42 | Line 42 |
| 42 | ||
| 43 | #define SUB(v,i) (((Diderot_union3_t)(v)).r[i]) | #define SUB(v,i) (((Diderot_union3_t)(v)).r[i]) |
| 44 | ||
| // OpenCL 1.0 does not specify the C representation of the host types | ||
| // for OpenCL vector types (e.g., cl_float4), so we have to handle this | ||
| // mechanism with a macro. | ||
| #if defined(CL_HOST_VECTORS_ARE_STRUCTS) | ||
| # define VSUB(v,i) (v).s[i] | ||
| #elif defined(CL_HOST_VECTORS_ARE_ARRAYS) | ||
| # define VSUB(v,i) (v)[i] | ||
| #else | ||
| # error unable to access elements of host vectors | ||
| #endif | ||
| 45 | /* | /* |
| 46 | ** All the three given vectors span only a 2D space, and this finds | ** All the three given vectors span only a 2D space, and this finds |
| 47 | ** the normal to that plane. Simply sums up all the pair-wise | ** the normal to that plane. Simply sums up all the pair-wise |
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