Struct GlBackendOptions 

pub struct GlBackendOptions {
    pub gles_minor_version: Gles3MinorVersion,
    pub fence_behavior: GlFenceBehavior,
    pub debug_fns: GlDebugFns,
}

Configuration for the OpenGL/OpenGLES backend.

Part of BackendOptions.

Fields

gles_minor_version: Gles3MinorVersion

Which OpenGL ES 3 minor version to request, if using OpenGL ES.

fence_behavior: GlFenceBehavior

Behavior of OpenGL fences. Affects how on_completed_work_done and device.poll behave.

debug_fns: GlDebugFns

Controls whether debug functions (glPushDebugGroup, glPopDebugGroup, glObjectLabel, etc.) are enabled when supported by the driver.

By default (GlDebugFns::Auto), debug functions are automatically disabled on devices with known bugs (e.g., Mali GPUs can crash in glPushDebugGroup). Use GlDebugFns::ForceEnabled to override this behavior, or GlDebugFns::Disabled to disable debug functions entirely.

See also InstanceFlags::DISCARD_HAL_LABELS, which prevents debug markers and labels from being sent to any backend, but without the driver-specific bug workarounds provided here.

Implementations

impl GlBackendOptions

pub const fn default() -> Self

This function is identical to Default::default() except that it is a const fn.

impl GlBackendOptions

pub fn from_env_or_default() -> Self

Choose OpenGL backend options by calling from_env on every field.

See those methods for more information.

pub fn with_env(self) -> Self

Takes the given options, modifies them based on the environment variables, and returns the result.

This is equivalent to calling with_env on every field.

Trait Implementations

impl Clone for GlBackendOptions

fn clone(&self) -> GlBackendOptions

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl ConstDefaultHelper for GlBackendOptions

const DEFAULT: Self

impl Debug for GlBackendOptions

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

Formats the value using the given formatter.

impl Default for GlBackendOptions

fn default() -> Self

Returns the “default value” for a type.

impl PartialEq for GlBackendOptions

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for GlBackendOptions

impl StructuralPartialEq for GlBackendOptions