From: Paul Berry <stereotype...@gmail.com>
Without this patch, $$.negate, $$.rgba_valid, and $$.xyzw_valid take
on garbage values. At the moment this problem is benign (the garbage
values happen to be zero), but in my experiments executing GL
operations on a background thread, the garbage values change, leading
to piglit failures.
Reviewed-by: Eric Anholt <e...@anholt.net>
---
src/mesa/program/program_parse.y | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/src/mesa/program/program_parse.y b/src/mesa/program/program_parse.y
index 025b547..baa436b 100644
--- a/src/mesa/program/program_parse.y
+++ b/src/mesa/program/program_parse.y
@@ -709,6 +709,7 @@ extSwizSel: INTEGER
}
$$.swz = ($1 == 0) ? SWIZZLE_ZERO : SWIZZLE_ONE;
+ $$.negate = 0;
/* 0 and 1 are valid for both RGBA swizzle names and XYZW
* swizzle names.
@@ -728,6 +729,10 @@ extSwizSel: INTEGER
s = $1[0];
free($1);
+ $$.rgba_valid = 0;
+ $$.xyzw_valid = 0;
+ $$.negate = 0;
+
switch (s) {
case 'x':
$$.swz = SWIZZLE_X;
--
1.7.10.4
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