diff options
Diffstat (limited to 'src/mesa/glapi/glapi.h')
| -rw-r--r-- | src/mesa/glapi/glapi.h | 29 |
1 files changed, 27 insertions, 2 deletions
diff --git a/src/mesa/glapi/glapi.h b/src/mesa/glapi/glapi.h index f802a61d3bd..6bfe741b7ef 100644 --- a/src/mesa/glapi/glapi.h +++ b/src/mesa/glapi/glapi.h @@ -64,6 +64,15 @@ typedef void (*_glapi_proc)(void); /* generic function pointer */ #endif +#if defined(__GNUC__) && (__GNUC__ >= 3) +# define likely(x) __builtin_expect(!!(x), 1) +# define unlikely(x) __builtin_expect(!!(x), 0) +#else +# define likely(x) (x) +# define unlikely(x) (x) +#endif + + /* * Number of extension functions which we can dynamically add at runtime. */ @@ -71,7 +80,8 @@ typedef void (*_glapi_proc)(void); /* generic function pointer */ /** - ** Define the GET_CURRENT_CONTEXT() macro. + ** Define the GET_DISPATCH() and GET_CURRENT_CONTEXT() macros. + ** ** \param C local variable which will hold the current context. **/ #if defined (GLX_USE_TLS) @@ -79,9 +89,14 @@ typedef void (*_glapi_proc)(void); /* generic function pointer */ extern const void *_glapi_Context; extern const struct _glapi_table *_glapi_Dispatch; +extern __thread struct _glapi_table * _glapi_tls_Dispatch + __attribute__((tls_model("initial-exec"))); + extern __thread void * _glapi_tls_Context __attribute__((tls_model("initial-exec"))); +# define GET_DISPATCH() _glapi_tls_Dispatch + # define GET_CURRENT_CONTEXT(C) GLcontext *C = (GLcontext *) _glapi_tls_Context #else @@ -90,9 +105,19 @@ extern void *_glapi_Context; extern struct _glapi_table *_glapi_Dispatch; # ifdef THREADS -# define GET_CURRENT_CONTEXT(C) GLcontext *C = (GLcontext *) (_glapi_Context ? _glapi_Context : _glapi_get_context()) + +# define GET_DISPATCH() \ + (likely(_glapi_Dispatch) ? _glapi_Dispatch : _glapi_get_dispatch()) + +# define GET_CURRENT_CONTEXT(C) GLcontext *C = (GLcontext *) \ + (likely(_glapi_Context) ? _glapi_Context : _glapi_get_context()) + # else + +# define GET_DISPATCH() _glapi_Dispatch + # define GET_CURRENT_CONTEXT(C) GLcontext *C = (GLcontext *) _glapi_Context + # endif #endif /* defined (GLX_USE_TLS) */ |