From f5ac1d366e81ee9ad11f44ee64a5b556bc6f1989 Mon Sep 17 00:00:00 2001 From: Matt Turner Date: Thu, 26 May 2016 15:53:30 -0700 Subject: [PATCH] mesa: Avoid aliasing violation in FXT1. Reviewed-by: Brian Paul Reviewed-by: Ian Romanick --- src/mesa/main/texcompress_fxt1.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/src/mesa/main/texcompress_fxt1.c b/src/mesa/main/texcompress_fxt1.c index ae339e11d39..c5646fbd7a3 100644 --- a/src/mesa/main/texcompress_fxt1.c +++ b/src/mesa/main/texcompress_fxt1.c @@ -177,8 +177,8 @@ _mesa_texstore_rgba_fxt1(TEXSTORE_PARAMS) #define LL_RMS_D 10 /* fault tolerance (maximum delta) */ #define LL_RMS_E 255 /* fault tolerance (maximum error) */ #define ALPHA_TS 2 /* alpha threshold: (255 - ALPHA_TS) deemed opaque */ -#define ISTBLACK(v) (*((GLuint *)(v)) == 0) - +static const GLuint zero = 0; +#define ISTBLACK(v) (memcmp(&(v), &zero, sizeof(zero)) == 0) /* * Define a 64-bit unsigned integer type and macros -- 2.30.2