diff options
| -rw-r--r-- | src/libgamma-facade.c | 42 | ||||
| -rw-r--r-- | src/libgamma-facade.h | 9 |
2 files changed, 51 insertions, 0 deletions
diff --git a/src/libgamma-facade.c b/src/libgamma-facade.c index ef5d369..c94d9e3 100644 --- a/src/libgamma-facade.c +++ b/src/libgamma-facade.c @@ -212,6 +212,48 @@ size_t libgamma_list_methods(int* restrict methods, size_t buf_size, int operati /** + * Check whether an adjustment method is available, non-existing (invalid) methods will be + * identified as not available under the rationale that the library may be out of date. + * + * @param method The adjustment method. + * @return Whether the adjustment method is available. + */ +int libgamma_is_method_available(int method) +{ +#ifdef HAVE_NO_LIBGAMMA_METHODS + (void) methods; + return 0; +#else + switch (method) + { +#ifdef HAVE_LIBGAMMA_METHOD_DUMMY + case LIBGAMMA_METHOD_DUMMY: +#endif +#ifdef HAVE_LIBGAMMA_METHOD_X_RANDR + case LIBGAMMA_METHOD_X_RANDR: +#endif +#ifdef HAVE_LIBGAMMA_METHOD_X_VIDMODE + case LIBGAMMA_METHOD_X_VIDMODE: +#endif +#ifdef HAVE_LIBGAMMA_METHOD_LINUX_DRM + case LIBGAMMA_METHOD_LINUX_DRM: +#endif +#ifdef HAVE_LIBGAMMA_METHOD_W32_GDI + case LIBGAMMA_METHOD_W32_GDI: +#endif +#ifdef HAVE_LIBGAMMA_METHOD_QUARTZ_CORE_GRAPHICS + case LIBGAMMA_METHOD_QUARTZ_CORE_GRAPHICS: +#endif + return 1; + + default: + return 0; + } +#endif +} + + +/** * Return the capabilities of an adjustment method. * * @param this The data structure to fill with the method's capabilities. diff --git a/src/libgamma-facade.h b/src/libgamma-facade.h index db5075b..fdf46ae 100644 --- a/src/libgamma-facade.h +++ b/src/libgamma-facade.h @@ -93,6 +93,15 @@ typedef double libgamma_gamma_rampsd_fun(double encoding); size_t libgamma_list_methods(int* restrict methods, size_t buf_size, int operation); /** + * Check whether an adjustment method is available, non-existing (invalid) methods will be + * identified as not available under the rationale that the library may be out of date. + * + * @param method The adjustment method. + * @return Whether the adjustment method is available. + */ +int libgamma_is_method_available(int method) __attribute__((const)); + +/** * Return the capabilities of an adjustment method. * * @param this The data structure to fill with the method's capabilities |