xlib: Use float type in calculation.wip/lround

1 files changed, 2 insertions, 2 deletions

diff --git a/src/mesa/drivers/x11/xm_api.c b/src/mesa/drivers/x11/xm_api.c
index 3eaa6cf4ae9..15ac13060ca 100644
--- a/src/mesa/drivers/x11/xm_api.c
+++ b/src/mesa/drivers/x11/xm_api.c
@@ -149,8 +149,8 @@ gamma_adjust( GLfloat gamma, GLint value, GLint max )
       return value;
    }
    else {
-      double x = (double) value / (double) max;
-      return lroundf(max * pow(x, 1.0F/gamma));
+      float x = (float) value / (float) max;
+      return lroundf(max * powf(x, 1.0F/gamma));
    }
 }