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fix out-of-bounds array index (ix=-1)

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This commit is contained in:
Brian 2007-11-19 09:55:17 -07:00
parent f00a64999c
commit 22a374fc3f
1 changed files with 3 additions and 2 deletions
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5
src/mesa/swrast/s_aatritemp.h
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@ -1,6 +1,6 @@
/*
* Mesa 3-D graphics library
* Version: 6.5.3
* Version: 7.0.3
*
* Copyright (C) 1999-2007 Brian Paul All Rights Reserved.
*
@ -286,7 +286,7 @@
}
/* skip fragments with zero coverage */
while (startX >= 0) {
while (startX > 0) {
coverage = compute_coveragef(pMin, pMax, pMid, startX, iy);
if (coverage > 0.0F)
break;
@ -300,6 +300,7 @@
/* (cx,cy) = center of fragment */
const GLfloat cx = ix + 0.5F, cy = iy + 0.5F;
SWspanarrays *array = span.array;
ASSERT(ix >= 0);
#ifdef DO_INDEX
array->coverage[ix] = (GLfloat) compute_coveragei(pMin, pMax, pMid, ix, iy);
#else