[Mesa-dev] [PATCH 1/4] mesa: avoid valgrind warning due to opaque only being set sometimes

Ilia Mirkin imirkin at alum.mit.edu
Fri Jul 8 06:48:02 UTC 2016


Valgrind complains with a "Conditional jump or move depends on
uninitialised value(s)" warning due to opaque being conditionally
initialized. However in the punchthrough_alpha == true case, it is
always initialized, so just flip the condition around to silence the
warning.

Signed-off-by: Ilia Mirkin <imirkin at alum.mit.edu>
---
 src/mesa/main/texcompress_etc.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/mesa/main/texcompress_etc.c b/src/mesa/main/texcompress_etc.c
index f29561c..d465010 100644
--- a/src/mesa/main/texcompress_etc.c
+++ b/src/mesa/main/texcompress_etc.c
@@ -458,10 +458,10 @@ etc2_rgb8_parse_block(struct etc2_block *block,
       /* Use same modifier tables as for etc1 textures if opaque bit is set
        * or if non punchthrough texture format
        */
-      block->modifier_tables[0] = (block->opaque || !punchthrough_alpha) ?
+      block->modifier_tables[0] = (!punchthrough_alpha || block->opaque) ?
                                   etc1_modifier_tables[table1_idx] :
                                   etc2_modifier_tables_non_opaque[table1_idx];
-      block->modifier_tables[1] = (block->opaque || !punchthrough_alpha) ?
+      block->modifier_tables[1] = (!punchthrough_alpha || block->opaque) ?
                                   etc1_modifier_tables[table2_idx] :
                                   etc2_modifier_tables_non_opaque[table2_idx];
 
-- 
2.7.3



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