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| author | Uoti Urpala <uau@mplayer2.org> | 2011-09-04 14:34:45 +0300 |
|---|---|---|
| committer | Uoti Urpala <uau@mplayer2.org> | 2011-09-04 14:36:09 +0300 |
| commit | 89b37a32dabc456f35a8e3d828a22861bd292ca8 (patch) | |
| tree | 607fbba9d6fd42d6700a5bab5282d2ea1fdef17a /m_option.h | |
| parent | 79469244f72d4350b630b21eac034a81b7b24cba (diff) | |
| download | mpv-89b37a32dabc456f35a8e3d828a22861bd292ca8.tar.bz2 mpv-89b37a32dabc456f35a8e3d828a22861bd292ca8.tar.xz | |
options: add "disabled option" functionality
Add functionality to mark options that depend on features disabled at
compile time as disabled rather than not compiling the option
definitions at all. This allows printing a warning about the option
not being available because of a disabled feature, instead of just
"unknown option". Because the option definitions are still compiled
fully, this only works for definitions that do not reference symbols
which are not available if the feature is disabled. Use the new
functionality for options depending on libass.
Diffstat (limited to 'm_option.h')
| -rw-r--r-- | m_option.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/m_option.h b/m_option.h index 78ed856f6d..5b7e051290 100644 --- a/m_option.h +++ b/m_option.h @@ -486,6 +486,11 @@ static inline void m_option_free(const m_option_t *opt, void *dst) #define OPTION_PATH_SEPARATOR ':' #endif +// The code will interpret arguments different from 1 as disabled, thus +// CONFIG_FOO etc mean disabled if no such macro is defined. +#define OPT_START_CONDITIONAL(enable, featurename) OPT_START_CONDITIONAL_AFTERMACROEVAL(enable, featurename) +#define OPT_START_CONDITIONAL_AFTERMACROEVAL(enable, featurename) {"conditional functionality: " #enable, .p = featurename} + #define OPT_FLAG_ON(optname, varname, flags) {optname, NULL, &m_option_type_flag, flags, 0, 1, NULL, 1, offsetof(struct MPOpts, varname)} #define OPT_FLAG_OFF(optname, varname, flags) {optname, NULL, &m_option_type_flag, flags, 1, 0, NULL, 1, offsetof(struct MPOpts, varname)} #define OPT_MAKE_FLAGS(optname, varname, flags) OPT_FLAG_ON(optname, varname, flags), OPT_FLAG_OFF("no" optname, varname, flags) |