-/* $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
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) */
}
-/* $Id: s_aalinetemp.h,v 1.8 2001/05/03 22:13:32 brianp Exp $ */
+/* $Id: s_aalinetemp.h,v 1.9 2001/05/10 17:41:41 brianp Exp $ */
/*
* Mesa 3-D graphics library
line.dy = line.y1 - line.y0;
line.len = sqrt(line.dx * line.dx + line.dy * line.dy);
line.halfWidth = 0.5F * ctx->Line.Width;
- if (line.len == 0.0) {
- line.xAdj = 0.0;
- line.yAdj = 0.0;
- }
- else {
- line.xAdj = line.dx / line.len * line.halfWidth;
- line.yAdj = line.dy / line.len * line.halfWidth;
- }
+
+ if (line.len == 0.0)
+ return;
+
+ line.xAdj = line.dx / line.len * line.halfWidth;
+ line.yAdj = line.dy / line.len * line.halfWidth;
#ifdef DO_Z
compute_plane(line.x0, line.y0, line.x1, line.y1,
-/* $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
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) */
}