Struct webgl_stdweb::WEBGL_compressed_texture_atc

pub struct WEBGL_compressed_texture_atc(_);

Extension

This extension exposes the compressed texture formats defined in the AMD_compressed_ATC_texture OpenGL extension to WebGL. Compression formats COMPRESSED_RGB_ATC_WEBGL, COMPRESSED_RGBA_ATC_EXPLICIT_ALPHA_WEBGL, and COMPRESSED_RGBA_ATC_INTERPOLATED_ALPHA_WEBGL may be passed to the compressedTexImage2D and compressedTexSubImage2D entry points. These formats correspond to the 3 formats defined in the AMD_compressed_ATC_texture OpenGL extension. Although the enum names are changed, their numeric values are the same. The correspondence is given by this table: WebGL format enum OpenGL format enum Numeric value COMPRESSED_RGB_ATC_WEBGL ATC_RGB_AMD 0x8C92 COMPRESSED_RGBA_ATC_EXPLICIT_ALPHA_WEBGL ATC_RGBA_EXPLICIT_ALPHA_AMD 0x8C93 COMPRESSED_RGBA_ATC_INTERPOLATED_ALPHA_WEBGL ATC_RGBA_INTERPOLATED_ALPHA_AMD 0x87EE Calling getParameter with the argument COMPRESSED_TEXTURE_FORMATS will include the 3 formats from this specification.

The following format-specific restrictions must be enforced: COMPRESSED_RGB_ATC_WEBGL

The byteLength of the ArrayBufferView, pixels, passed to compressedTexImage2D, must be equal to the following number of bytes:

floor((width + 3) / 4) * floor((height + 3) / 4) * 8

If it is not, an INVALID_VALUE error is generated. COMPRESSED_RGBA_ATC_EXPLICIT_ALPHA_WEBGL COMPRESSED_RGBA_ATC_INTERPOLATED_ALPHA_WEBGL

The byteLength of the ArrayBufferView, pixels, passed to compressedTexImage2D, must be equal to the following number of bytes:

floor((width + 3) / 4) * floor((height + 3) / 4) * 16

If it is not, an INVALID_VALUE error is generated.

Methods

impl WEBGL_compressed_texture_atc

pub const COMPRESSED_RGBA_ATC_EXPLICIT_ALPHA_WEBGL: GLenum

COMPRESSED_RGBA_ATC_EXPLICIT_ALPHA_WEBGL: GLenum = 35987

pub const COMPRESSED_RGBA_ATC_INTERPOLATED_ALPHA_WEBGL: GLenum

COMPRESSED_RGBA_ATC_INTERPOLATED_ALPHA_WEBGL: GLenum = 34798

pub const COMPRESSED_RGB_ATC_WEBGL: GLenum

COMPRESSED_RGB_ATC_WEBGL: GLenum = 35986

Trait Implementations

impl Debug for WEBGL_compressed_texture_atc

fn fmt(&self, __arg_0: &mut Formatter) -> Result

Formats the value using the given formatter.

impl Clone for WEBGL_compressed_texture_atc

fn clone(&self) -> WEBGL_compressed_texture_atc

Returns a copy of the value.

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

Performs copy-assignment from source.

impl AsRef<Reference> for WEBGL_compressed_texture_atc

fn as_ref(&self) -> &Reference

Performs the conversion.

impl ReferenceType for WEBGL_compressed_texture_atc

unsafe fn from_reference_unchecked(reference: Reference) -> Self

Converts a given reference into a concrete reference-like wrapper. Doesn't do any type checking; highly unsafe to use!

impl From<WEBGL_compressed_texture_atc> for Reference

fn from(value: WEBGL_compressed_texture_atc) -> Self

Performs the conversion.

impl TryFrom<WEBGL_compressed_texture_atc> for Reference

type Error = Void

The type returned in the event of a conversion error.

fn try_from(value: WEBGL_compressed_texture_atc) -> Result<Self, Self::Error>

Performs the conversion.

impl TryFrom<Reference> for WEBGL_compressed_texture_atc

type Error = ConversionError

The type returned in the event of a conversion error.

fn try_from(reference: Reference) -> Result<Self, Self::Error>

Performs the conversion.

impl<'_r> TryFrom<&'_r Reference> for WEBGL_compressed_texture_atc

type Error = ConversionError

The type returned in the event of a conversion error.

fn try_from(reference: &Reference) -> Result<Self, Self::Error>

Performs the conversion.

impl TryFrom<Value> for WEBGL_compressed_texture_atc

type Error = ConversionError

The type returned in the event of a conversion error.

fn try_from(value: Value) -> Result<Self, Self::Error>

Performs the conversion.

impl<'_r> TryFrom<&'_r Value> for WEBGL_compressed_texture_atc

type Error = ConversionError

The type returned in the event of a conversion error.

fn try_from(value: &Value) -> Result<Self, Self::Error>

Performs the conversion.

impl JsSerialize for WEBGL_compressed_texture_atc

impl JsSerializeOwned for WEBGL_compressed_texture_atc

fn into_js_owned<'_a>(
    value: &'_a mut Option<Self>,
    arena: &'_a PreallocatedArena
) -> SerializedValue<'_a>

fn memory_required_owned(&self) -> usize

impl<'_r> JsSerializeOwned for &'_r WEBGL_compressed_texture_atc

fn into_js_owned<'_a>(
    value: &'_a mut Option<Self>,
    arena: &'_a PreallocatedArena
) -> SerializedValue<'_a>

fn memory_required_owned(&self) -> usize

impl InstanceOf for WEBGL_compressed_texture_atc

fn instance_of(reference: &Reference) -> bool

Checks whenever a given Reference if of type Self.

impl Extension for WEBGL_compressed_texture_atc

const NAME: &'static str

NAME: &'static str = "WEBGL_compressed_texture_atc"