diff options
Diffstat (limited to 'src/mesa/swrast/s_aaline.c')
| -rw-r--r-- | src/mesa/swrast/s_aaline.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/src/mesa/swrast/s_aaline.c b/src/mesa/swrast/s_aaline.c index f60233c3aca..7ce0d6b7080 100644 --- a/src/mesa/swrast/s_aaline.c +++ b/src/mesa/swrast/s_aaline.c @@ -1,4 +1,4 @@ -/* $Id: s_aaline.c,v 1.8 2001/04/10 15:46:51 brianp Exp $ */ +/* $Id: s_aaline.c,v 1.9 2001/05/10 17:41:41 brianp Exp $ */ /* * Mesa 3-D graphics library @@ -201,7 +201,10 @@ compute_lambda(const GLfloat sPlane[4], const GLfloat tPlane[4], GLfloat r2 = dvdx * dvdx + dvdy * dvdy; GLfloat rho2 = r1 + r2; /* return log base 2 of rho */ - return log(rho2) * 1.442695 * 0.5; /* 1.442695 = 1/log(2) */ + if (rho2 == 0.0F) + return 0.0; + else + return log(rho2) * 1.442695 * 0.5; /* 1.442695 = 1/log(2) */ } |