Enum ggez::conf::Backend

pub enum Backend {
    OpenGL {
        major: u8,
        minor: u8,
    },
    OpenGLES {
        major: u8,
        minor: u8,
    },
}

Possible backends. Currently, only OpenGL and OpenGL ES Core specs are supported, but this lets you specify which to use as well as the version numbers.

Defaults:

Backend::OpenGL {
    major: 3,
    minor: 2,
}

Variants

OpenGL

Defaults to OpenGL 3.2, which is supported by basically every machine since 2009 or so (apart from the ones that don’t).

Fields of OpenGL

major: u8

OpenGL major version

minor: u8

OpenGL minor version

OpenGLES

OpenGL ES, defaults to 3.0. Used for phones and other mobile devices. Using something older than 3.0 starts to running into sticky limitations, particularly with instanced drawing (used for SpriteBatch), but might be possible.

Fields of OpenGLES

major: u8

OpenGL ES major version

minor: u8

OpenGL ES minor version

Implementations

impl Backend

pub fn version(self, new_major: u8, new_minor: u8) -> Self

Set requested OpenGL/OpenGL ES version.

pub fn gl(self) -> Self

Use OpenGL

pub fn gles(self) -> Self

Use OpenGL ES

Trait Implementations

impl Clone for Backend

fn clone(&self) -> Backend

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Backend

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for Backend

fn default() -> Self

Return Backend::OpenGL { major: 3, minor: 2 }

impl<'de> Deserialize<'de> for Backend

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error> where
    __D: Deserializer<'de>, 

Deserialize this value from the given Serde deserializer.

impl From<Backend> for GlBackendSpec

fn from(c: Backend) -> Self

Performs the conversion.

impl PartialEq<Backend> for Backend

fn eq(&self, other: &Backend) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Backend) -> bool

This method tests for !=.

impl Serialize for Backend

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error> where
    __S: Serializer, 

Serialize this value into the given Serde serializer.

impl Copy for Backend

impl Eq for Backend

impl StructuralEq for Backend

impl StructuralPartialEq for Backend