Bug 706632: Fix infinite loop in shading code.

Another set of typos in the shading optimisation code. This is a
different "class" of typo than before. I've checked the code
so that we should be free of problems of this class at least
in future.

1 files changed, 4 insertions, 4 deletions

diff --git a/base/gxshade1.c b/base/gxshade1.c
index d5776e2e0..73414cbfd 100644
--- a/base/gxshade1.c
+++ b/base/gxshade1.c
@@ -652,7 +652,7 @@ check_above_quarter:
             v1 = 1;
             goto check_bottom;
         }
-        else if (c[1].vertex.p.y > pfs->rect.q.y && c[2].vertex.p.y > pfs->rect.q.y)
+        else if (c[3].vertex.p.y > pfs->rect.q.y && c[2].vertex.p.y > pfs->rect.q.y)
         {
             /* Check 3+2 off bottom. */
             v0 = 3;
@@ -800,7 +800,7 @@ check_rot_above_quarter:
             v1 = 3;
             goto check_rot_bottom;
         }
-        else if (c[3].vertex.p.y > pfs->rect.q.y && c[2].vertex.p.y > pfs->rect.q.y)
+        else if (c[1].vertex.p.y > pfs->rect.q.y && c[2].vertex.p.y > pfs->rect.q.y)
         {
             /* Check 1+2 off the bottom. */
             v0 = 1;
@@ -1410,7 +1410,7 @@ check_above_quarter:
             v1 = 1;
             goto check_bottom;
         }
-        else if (cc->corners[1].y > pfs->rect.q.y && cc->corners[2].y > pfs->rect.q.y)
+        else if (cc->corners[3].y > pfs->rect.q.y && cc->corners[2].y > pfs->rect.q.y)
         {
             /* Check 3+2 off bottom. */
             v0 = 3;
@@ -1558,7 +1558,7 @@ check_rot_above_quarter:
             v1 = 3;
             goto check_rot_bottom;
         }
-        else if (cc->corners[3].y > pfs->rect.q.y && cc->corners[2].y > pfs->rect.q.y)
+        else if (cc->corners[1].y > pfs->rect.q.y && cc->corners[2].y > pfs->rect.q.y)
         {
             /* Check 1+2 off the bottom. */
             v0 = 1;