Struct webgl_stdweb::WEBGL_compressed_texture_etc1

pub struct WEBGL_compressed_texture_etc1(_);

Extension

This extension exposes the compressed texture format defined in the OES_compressed_ETC1_RGB8_texture OpenGL ES extension to WebGL. Compression format COMPRESSED_RGB_ETC1_WEBGL may be passed to the compressedTexImage2D entry point. This format correspond to the format defined in the OES_compressed_ETC1_RGB8_texture OpenGL ES extension. Although the enum name is changed, the numeric value is the same. The correspondence is given by this table: WebGL format enum OpenGL format enum Numeric value COMPRESSED_RGB_ETC1_WEBGL ETC1_RGB8_OES 0x8D64 Calling getParameter with the argument COMPRESSED_TEXTURE_FORMATS will include the format from this specification.

The following format-specific restrictions must be enforced: COMPRESSED_RGB_ETC1_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.

Implementations

impl WEBGL_compressed_texture_etc1

pub const COMPRESSED_RGB_ETC1_WEBGL: GLenum = 36_196u32

Trait Implementations

impl AsRef<Reference> for WEBGL_compressed_texture_etc1

fn as_ref(&self) -> &Reference

Converts this type into a shared reference of the (usually inferred) input type.

impl Clone for WEBGL_compressed_texture_etc1

fn clone(&self) -> WEBGL_compressed_texture_etc1

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for WEBGL_compressed_texture_etc1

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

Formats the value using the given formatter.

impl Extension for WEBGL_compressed_texture_etc1

const NAME: &'static str = "WEBGL_compressed_texture_etc1"

impl From<WEBGL_compressed_texture_etc1> for Reference

fn from(value: WEBGL_compressed_texture_etc1) -> Self

Converts to this type from the input type.

impl InstanceOf for WEBGL_compressed_texture_etc1

fn instance_of(_reference: &Reference) -> bool

Checks whenever a given Reference if of type Self.

impl ReferenceType for WEBGL_compressed_texture_etc1

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<'_r> TryFrom<&'_r Reference> for WEBGL_compressed_texture_etc1

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 Value> for WEBGL_compressed_texture_etc1

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 TryFrom<Reference> for WEBGL_compressed_texture_etc1

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_etc1

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 TryFrom<WEBGL_compressed_texture_etc1> for Reference

type Error = Void

The type returned in the event of a conversion error.

fn try_from(value: WEBGL_compressed_texture_etc1) -> Result<Self, Self::Error>

Performs the conversion.

impl JsSerialize for WEBGL_compressed_texture_etc1