Struct webgl_stdweb::EXT_texture_compression_rgtc

pub struct EXT_texture_compression_rgtc(_);

Extension

This extension exposes the compressed texture format defined in the EXT_texture_compression_rgtc OpenGL extension to WebGL. Consult that extension specification for behavioral definitions, including error behaviors.

Updates of partial tiles detailed in the “Implementation Note” section of the EXT_texture_compression_rgtc specification must be supported in an implementation of this WebGL extension. Compression formats COMPRESSED_RED_RGTC1_EXT, COMPRESSED_SIGNED_RED_RGTC1_EXT, COMPRESSED_RED_GREEN_RGTC2_EXT, and COMPRESSED_SIGNED_RED_GREEN_RGTC2_EXT may be passed to the compressedTexImage2D and compressedTexSubImage2D entry points. Calling getParameter with the argument COMPRESSED_TEXTURE_FORMATS will include the formats from this specification.

The following format-specific restrictions must be enforced: COMPRESSED_RED_RGTC1_EXT COMPRESSED_SIGNED_RED_RGTC1_EXT

The byteLength of the ArrayBufferView, pixels, passed to compressedTexImage2D or compressedTexSubImage2D must be equal to the following number of bytes:

ceil(width / 4) * ceil(height / 4) * 8

If it is not, an INVALID_VALUE error is generated. COMPRESSED_RED_GREEN_RGTC2_EXT COMPRESSED_SIGNED_RED_GREEN_RGTC2_EXT

The byteLength of the ArrayBufferView, pixels, passed to compressedTexImage2D or compressedTexSubImage2D must be equal to the following number of bytes:

ceil(width / 4) * ceil(height / 4) * 16

If it is not, an INVALID_VALUE error is generated.

Implementations

impl EXT_texture_compression_rgtc

pub const COMPRESSED_RED_GREEN_RGTC2_EXT: GLenum = 36_285u32

pub const COMPRESSED_RED_RGTC1_EXT: GLenum = 36_283u32

pub const COMPRESSED_SIGNED_RED_GREEN_RGTC2_EXT: GLenum = 36_286u32

pub const COMPRESSED_SIGNED_RED_RGTC1_EXT: GLenum = 36_284u32

Trait Implementations

impl AsRef<Reference> for EXT_texture_compression_rgtc

fn as_ref(&self) -> &Reference

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

impl Clone for EXT_texture_compression_rgtc

fn clone(&self) -> EXT_texture_compression_rgtc

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for EXT_texture_compression_rgtc

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

Formats the value using the given formatter.

impl Extension for EXT_texture_compression_rgtc

const NAME: &'static str = "EXT_texture_compression_rgtc"

impl From<EXT_texture_compression_rgtc> for Reference

fn from(value: EXT_texture_compression_rgtc) -> Self

Converts to this type from the input type.

impl InstanceOf for EXT_texture_compression_rgtc

fn instance_of(_reference: &Reference) -> bool

Checks whenever a given Reference if of type Self.

impl ReferenceType for EXT_texture_compression_rgtc

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 EXT_texture_compression_rgtc

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 EXT_texture_compression_rgtc

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<EXT_texture_compression_rgtc> for Reference

type Error = Void

The type returned in the event of a conversion error.

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

Performs the conversion.

impl TryFrom<Reference> for EXT_texture_compression_rgtc

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 EXT_texture_compression_rgtc

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 EXT_texture_compression_rgtc