diff options
| -rw-r--r-- | src/glx/x11/glxextensions.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/src/glx/x11/glxextensions.c b/src/glx/x11/glxextensions.c index c3bc93009a..d00bdbb250 100644 --- a/src/glx/x11/glxextensions.c +++ b/src/glx/x11/glxextensions.c @@ -319,6 +319,11 @@ set_glx_extension( const struct extension_info * ext, * * \param server_string GLX extension string from the server. * \param server_support Bit-field of supported extensions. + * + * \note + * This function is used to process both GLX and GL extension strings. The + * bit-fields used to track each of these have different sizes. Therefore, + * the data pointed by \c server_support must be preinitialized to zero. */ static void __glXProcessServerString( const struct extension_info * ext, @@ -328,8 +333,6 @@ __glXProcessServerString( const struct extension_info * ext, unsigned base; unsigned len; - (void) memset( server_support, 0, sizeof( server_support ) ); - for ( base = 0 ; server_string[ base ] != NUL ; /* empty */ ) { /* Determine the length of the next extension name. */ @@ -580,6 +583,8 @@ __glXCalculateUsableExtensions( __GLXscreenConfigs *psc, __glXExtensionsCtr(); __glXExtensionsCtrScreen( psc ); + + (void) memset( server_support, 0, sizeof( server_support ) ); __glXProcessServerString( known_glx_extensions, psc->serverGLXexts, server_support ); |