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Diff of /branches/vis12/src/lib/common/eigen2x2.c
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| revision 2428, Wed Sep 18 18:04:04 2013 UTC | revision 2429, Wed Sep 18 20:05:57 2013 UTC | |
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| # | Line 38 | Line 38 |
| 38 | ||
| 39 | #define SUB(v,i) (((Diderot_union2_t)(v)).r[i]) | #define SUB(v,i) (((Diderot_union2_t)(v)).r[i]) |
| 40 | ||
| // 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 | ||
| 41 | /* | /* |
| 42 | ** Eigensolver for symmetric 2x2 matrix: | ** Eigensolver for symmetric 2x2 matrix: |
| 43 | ** | ** |
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