Module: Mesa Branch: master Commit: f6a818e76d09633c37057703ba1796ecd5678317 URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=f6a818e76d09633c37057703ba1796ecd5678317
Author: Nanley Chery <[email protected]> Date: Wed Sep 2 11:53:16 2015 -0700 mesa/extensions: Create _mesa_extension_supported() Create a function which determines if an extension is supported in the current context. v2: Use common variable names (Emil) Insert new line between variables and return statement (Chad) Rename api_set variable to api_bit (Chad) Signed-off-by: Nanley Chery <[email protected]> Reviewed-by: Chad Versace <[email protected]> --- src/mesa/main/extensions.c | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/src/mesa/main/extensions.c b/src/mesa/main/extensions.c index 4fd7487..83c4921 100644 --- a/src/mesa/main/extensions.c +++ b/src/mesa/main/extensions.c @@ -426,6 +426,24 @@ typedef unsigned short extension_index; /** + * Given an extension enum, return whether or not the extension is supported + * dependent on the following factors: + * There's driver support and the OpenGL/ES version is at least that + * specified in the extension_table. + */ +static inline bool +_mesa_extension_supported(const struct gl_context *ctx, extension_index i) +{ + const bool *base = (bool *) &ctx->Extensions; + const struct extension *ext = extension_table + i; + const uint8_t api_bit = 1 << ctx->API; + + return (ext->api_set & api_bit) && + (ctx->Version >= ext->version[ctx->API]) && + base[ext->offset]; +} + +/** * Compare two entries of the extensions table. Sorts first by year, * then by name. * _______________________________________________ mesa-commit mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/mesa-commit
