Struct RetroEnvironment

pub struct RetroEnvironment(/* private fields */);

Exposes the retro_environment_t callback in an idiomatic fashion. Each of the RETRO_ENVIRONMENT_* keys will eventually have a corresponding method here.

Until that is accomplished, the keys are available in libretro_rs::sys and can be used manually with the get_raw, get, get_str and set_raw functions.

Implementations

impl RetroEnvironment

pub fn shutdown(&self) -> bool

Requests that the frontend shut down. The frontend can refuse to do this, and return false.

pub fn set_pixel_format(&self, val: RetroPixelFormat) -> bool

pub fn set_support_no_game(&self, val: bool) -> bool

pub fn get_libretro_path(&self) -> Option<&str>

Queries the path where the current libretro core resides.

pub fn get_core_assets_directory(&self) -> Option<&str>

Queries the path of the “core assets” directory.

pub fn get_save_directory(&self) -> Option<&str>

Queries the path of the save directory.

pub fn get_system_directory(&self) -> Option<&str>

Queries the path of the system directory.

pub fn get_username(&self) -> Option<&str>

Queries the username associated with the frontend.

pub fn get_str<'a>(&'a self, key: u32) -> Option<&'a str>

Queries a string slice from the environment. A null pointer (*const c_char) is interpreted as None.

pub unsafe fn get<T>(&self, key: u32) -> Option<*const T>

Queries a struct from the environment. A null pointer (*const T) is interpreted as None.

pub unsafe fn get_raw<T>(&self, key: u32, output: *mut *const T) -> bool

Directly invokes the underlying retro_environment_t in a “get” fashion.

pub fn set_bool(&self, key: u32, val: bool) -> bool

pub fn set_u32(&self, key: u32, val: u32) -> bool

pub unsafe fn set_raw<T>(&self, key: u32, val: *const T) -> bool

Directly invokes the underlying retro_environment_t in a “set” fashion.

pub unsafe fn cmd_raw(&self, key: u32) -> bool

Directly invokes the underlying retro_environment_t in a “command” fashion.

Trait Implementations

impl Clone for RetroEnvironment

fn clone(&self) -> RetroEnvironment

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for RetroEnvironment