diff options
| -rw-r--r-- | src/mesa/tnl/t_vb_arbprogram.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/mesa/tnl/t_vb_arbprogram.c b/src/mesa/tnl/t_vb_arbprogram.c index 96311ff17b..508233cf31 100644 --- a/src/mesa/tnl/t_vb_arbprogram.c +++ b/src/mesa/tnl/t_vb_arbprogram.c @@ -345,7 +345,11 @@ static void do_LOG( struct arb_vp_machine *m, union instruction op ) const GLfloat *arg0 = m->File[op.alu.file0][op.alu.idx0]; GLfloat tmp = FABSF(arg0[0]); int exponent; +#ifdef _WIN32 + GLfloat mantissa = (GLfloat) frexp((double)tmp, &exponent); +#else GLfloat mantissa = frexpf(tmp, &exponent); +#endif result[0] = (GLfloat) (exponent - 1); result[1] = 2.0 * mantissa; /* map [.5, 1) -> [1, 2) */ |