hg: openjfx/10-dev/rt: 8170024: PiscesRenderer.pr.emitAndClearAlphaRow cannot accept a pix_x_from parameter greater than clip.xmin

[james.graham at oracle.com]

Changeset: 58c94c872358
Author:    lbourges
Date:      2017-04-18 17:00 -0700
URL:       http://hg.openjdk.java.net/openjfx/10-dev/rt/rev/58c94c872358

8170024: PiscesRenderer.pr.emitAndClearAlphaRow cannot accept a pix_x_from parameter greater than clip.xmin
Reviewed-by: flar

! modules/javafx.graphics/src/main/java/com/sun/pisces/PiscesRenderer.java
! modules/javafx.graphics/src/main/java/com/sun/prism/sw/SWContext.java
! modules/javafx.graphics/src/main/native-prism-sw/JPiscesRenderer.c