Struct ocl::Context

pub struct Context(_);

A context for a particular platform and set of device types.

Thread safety and destruction for any enclosed pointers are all handled automatically. Clone, store, and share between threads to your heart's content.

Methods

impl Context

pub fn builder() -> ContextBuilder

Returns a ContextBuilder.

This is the preferred way to create a Context.

pub fn new(     properties: Option<ContextProperties>,     device_spec: Option<DeviceSpecifier>,     pfn_notify: Option<CreateContextCallbackFn>,     user_data: Option<UserDataPtr> ) -> OclResult<Context>

Returns a newly created context.

Prefer Context::builder()... instead of this method unless you know what you're doing. Please also immediately contact us if you do, in fact, know what you're doing so that you can be added to the development team as the one who does.

Defaults

• The 'NULL' platform (which is not to be relied on but is generally the first avaliable).
• All devices associated with the 'NULL' platform
• No notify callback function or user data.

Don't rely on these defaults, instead rely on the ContextBuilder defaults. In other words, use: Context::builder().build().unwrap() rather than Context::new(None, None, None, None).unwrap().

Panics

[TEMPORARY] Passing a Some variant for pfn_notify or user_data is not yet supported. File an issue if you need this.

Important traits for Vec<u8>

impl Write for Vec<u8>

pub fn resolve_wrapping_device_idxs(&self, idxs: &[usize]) -> Vec<Device>

Resolves a list of zero-based device indices into a list of Devices.

If any index is out of bounds it will wrap around zero (%) to the next valid device index.

pub fn get_device_by_wrapping_index(&self, index: usize) -> Device

Returns a device by its ordinal count within this context.

Round-robins (%) to the next valid device.

pub fn platform_info(     &self,     info_kind: PlatformInfo ) -> OclResult<PlatformInfoResult>

Returns info about the platform associated with the context.

pub fn device_info(     &self,     index: usize,     info_kind: DeviceInfo ) -> OclResult<DeviceInfoResult>

Returns info about the device indexed by index associated with this context.

pub fn info(&self, info_kind: ContextInfo) -> OclResult<ContextInfoResult>

Returns info about the context.

pub fn as_core(&self) -> &ContextCore

Returns a reference to the core pointer wrapper, usable by functions in the core module.

Important traits for Vec<u8>

impl Write for Vec<u8>

pub fn devices(&self) -> Vec<Device>

Returns the list of devices associated with this context.

Panics upon any OpenCL error.

pub fn device_versions(&self) -> OclResult<Vec<OpenclVersion>>

Returns the list of device versions associated with this context.

pub fn platform(&self) -> OclResult<Option<Platform>>

Returns the platform this context is associated with.

Methods from Deref<Target = ContextCore>

pub fn as_ptr(&self) -> *mut c_void

Returns a pointer, do not store it.

pub fn devices(&self) -> Result<Vec<DeviceId>, Error>

Returns the devices associated with this context.

pub fn platform(&self) -> Result<Option<PlatformId>, Error>

Returns the platform associated with this context, if any.

Errors upon the usual OpenCL errors.

Returns None if the context properties do not specify a platform.

Trait Implementations

impl Debug for Context

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

Formats the value using the given formatter.

impl Clone for Context

fn clone(&self) -> Context

Returns a copy of the value.

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

Performs copy-assignment from source.

impl From<ContextCore> for Context

fn from(c: ContextCore) -> Context

Performs the conversion.

impl Display for Context

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

Formats the value using the given formatter.

impl Deref for Context

type Target = ContextCore

The resulting type after dereferencing.

fn deref(&self) -> &ContextCore

Dereferences the value.

impl DerefMut for Context

fn deref_mut(&mut self) -> &mut ContextCore

Mutably dereferences the value.

impl<'a> ClContextPtr for &'a Context

fn as_ptr(&self) -> cl_context

impl ClVersions for Context

fn device_versions(&self) -> OclCoreResult<Vec<OpenclVersion>>

fn platform_version(&self) -> OclCoreResult<OpenclVersion>

fn verify_device_versions(     &self,     required_version: [u16; 2] ) -> Result<(), Error>

fn verify_platform_version(     &self,     required_version: [u16; 2] ) -> Result<(), Error>

impl<'a> ClVersions for &'a Context

fn device_versions(&self) -> OclCoreResult<Vec<OpenclVersion>>

fn platform_version(&self) -> OclCoreResult<OpenclVersion>

fn verify_device_versions(     &self,     required_version: [u16; 2] ) -> Result<(), Error>

fn verify_platform_version(     &self,     required_version: [u16; 2] ) -> Result<(), Error>