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tweak point rast to fix conform failure

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Brian
2007-09-27 10:23:32 -06:00
parent 3ee6a77e97
commit 4f9d29cd4e
1 changed files with 6 additions and 4 deletions
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10
src/mesa/swrast/s_points.c
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@@ -172,9 +172,10 @@ sprite_point(GLcontext *ctx, const SWvertex *vert)
}
else {
/* even size */
xmin = (GLint) x - iRadius;
/* 0.501 factor allows conformance to pass */
xmin = (GLint) (x + 0.501) - iRadius;
xmax = xmin + iSize - 1;
ymin = (GLint) y - iRadius;
ymin = (GLint) (y + 0.501) - iRadius;
ymax = ymin + iSize - 1;
}
@@ -418,9 +419,10 @@ large_point(GLcontext *ctx, const SWvertex *vert)
}
else {
/* even size */
xmin = (GLint) x - iRadius;
/* 0.501 factor allows conformance to pass */
xmin = (GLint) (x + 0.501) - iRadius;
xmax = xmin + iSize - 1;
ymin = (GLint) y - iRadius;
ymin = (GLint) (y + 0.501) - iRadius;
ymax = ymin + iSize - 1;
}