diff options
| -rw-r--r-- | src/mesa/main/mfeatures.h | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/src/mesa/main/mfeatures.h b/src/mesa/main/mfeatures.h index e23cdb1f426..6318934c6bf 100644 --- a/src/mesa/main/mfeatures.h +++ b/src/mesa/main/mfeatures.h @@ -36,6 +36,38 @@ #define _HAVE_FULL_GL 1 #endif +/* assert that a feature is disabled and should never be used */ +#define ASSERT_NO_FEATURE() ASSERT(0) + +/** + * A feature can be anything. But most of them share certain characteristics. + * + * When a feature defines driver entries, they can be initialized by + * _MESA_INIT_<FEATURE>_FUNCTIONS + * + * When a feature defines vtxfmt entries, they can be initialized and + * installed by + * _MESA_INIT_<FEATURE>_VTXFMT + * _mesa_install_<feature>_vtxfmt + * + * When a feature defines dispatch entries, they are initialized by + * _mesa_init_<feature>_dispatch + * + * When a feature has states, they are initialized and freed by + * _mesa_init_<feature> + * _mesa_free_<feature>_data + * + * Except for states, the others compile to no-op when a feature is disabled. + * + * The GLAPIENTRYs and helper functions defined by a feature should also + * compile to no-op when it is disabled. But to save typings and to catch + * bugs, some of them may be unavailable, or compile to ASSERT_NO_FEATURE() + * when the feature is disabled. + * + * A feature following the conventions may be used without knowing if it is + * enabled or not. + */ + #define FEATURE_accum _HAVE_FULL_GL #define FEATURE_attrib_stack _HAVE_FULL_GL #define FEATURE_colortable _HAVE_FULL_GL |