commit 582b3646d6634f74a13828cceb1414823c18e66f
author Stephen Hines <srhines@google.com> Sat Jun 01 09:58:24 2013 -0700
committer Stephen Hines <srhines@google.com> Sat Jun 01 09:58:24 2013 -0700
tree 671d21603b9ebb94ab7cd51d73ed87e50f92e199
parent 1bb91dae53edef8168532f0a8c1d5974f00993cf

Take absolute value of value for fast_length().

Bug: 9018865
Change-Id: I3f6539a4f97d0b1276341adc0752ce510f13cda5

driver/runtime/rs_cl.c

diff --git a/driver/runtime/rs_cl.c b/driver/runtime/rs_cl.c
index c0543de..b7f9158 100755
--- a/driver/runtime/rs_cl.c
+++ b/driver/runtime/rs_cl.c
@@ -931,7 +931,7 @@
 extern float __attribute__((overloadable)) half_sqrt(float);
 
 extern float __attribute__((overloadable)) fast_length(float v) {
-    return v;
+    return fabs(v);
 }
 extern float __attribute__((overloadable)) fast_length(float2 v) {
     return half_sqrt(v.x*v.x + v.y*v.y);