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authorBrian Paul <brian.paul@tungstengraphics.com>2001-05-10 17:41:41 +0000
committerBrian Paul <brian.paul@tungstengraphics.com>2001-05-10 17:41:41 +0000
commitdbed2027444338dc09fc102d6f4bd5c707c238d7 (patch)
tree13e2805c93fea3ab3b67c310d9b0fb76f5a3dfc4 /src/mesa/swrast/s_aatriangle.c
parentbd3d9b9d0497e64feec50153ad953a58a35bcd89 (diff)
fixed some divide by zero problems found w/ conform
Diffstat (limited to 'src/mesa/swrast/s_aatriangle.c')
-rw-r--r--src/mesa/swrast/s_aatriangle.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/src/mesa/swrast/s_aatriangle.c b/src/mesa/swrast/s_aatriangle.c
index 8235e957e3..9a9eb877f1 100644
--- a/src/mesa/swrast/s_aatriangle.c
+++ b/src/mesa/swrast/s_aatriangle.c
@@ -1,4 +1,4 @@
-/* $Id: s_aatriangle.c,v 1.13 2001/04/10 15:46:51 brianp Exp $ */
+/* $Id: s_aatriangle.c,v 1.14 2001/05/10 17:41:41 brianp Exp $ */
/*
* Mesa 3-D graphics library
@@ -341,7 +341,10 @@ 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) */
}