Struct webgl_stdweb::WEBGL_compressed_texture_s3tc_srgb

pub struct WEBGL_compressed_texture_s3tc_srgb(_);

Extension

This extension exposes the sRGB compressed texture formats defined in the EXT_texture_sRGB OpenGL extension to WebGL. Compression formats COMPRESSED_SRGB_S3TC_DXT1_EXT, COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT, COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT, and COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT may be passed to the compressedTexImage2D and compressedTexSubImage2D entry points. Calling getParameter with the argument COMPRESSED_TEXTURE_FORMATS will include the 4 formats from this specification.

The following format specific restrictions must be enforced: COMPRESSED_SRGB_S3TC_DXT1_EXT COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT

The byteLength of the ArrayBufferView, pixels, passed to either compressedTexImage2D or compressedTexSubImage2D must match the following equation:

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

If it is not an INVALID_VALUE error is generated.

When level equals zero width and height must be a multiple of 4. When level is greater than 0 width and height must be 0, 1, 2 or a multiple of 4.

If they are not an INVALID_OPERATION error is generated.

For compressedTexSubImage2D xoffset and yoffset must be a multiple of 4 and width must be a multiple of 4 or equal to the original width of the level. height must be a multiple of 4 or equal to the original height of the level. If they are not an INVALID_OPERATION error is generated. COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT

The byteLength of the ArrayBufferView, pixels, passed to either compressedTexImage2D or compressedTexSubImage2D must match the following equation:

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

If it is not an INVALID_VALUE error is generated.

When level equals zero width and height must be a multiple of 4. When level is greater than 0 width and height must be 0, 1, 2 or a multiple of 4.

If they are not an INVALID_OPERATION error is generated.

For compressedTexSubImage2D xoffset and yoffset must be a multiple of 4 and width must be a multiple of 4 or equal to the original width of the level. height must be a multiple of 4 or equal to the original height of the level. If they are not an INVALID_OPERATION error is generated.

Implementations

impl WEBGL_compressed_texture_s3tc_srgb

pub const COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT: GLenum = 35_917u32

pub const COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT: GLenum = 35_918u32

pub const COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT: GLenum = 35_919u32

pub const COMPRESSED_SRGB_S3TC_DXT1_EXT: GLenum = 35_916u32

Trait Implementations

impl AsRef<Reference> for WEBGL_compressed_texture_s3tc_srgb

fn as_ref(&self) -> &Reference

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

impl Clone for WEBGL_compressed_texture_s3tc_srgb

fn clone(&self) -> WEBGL_compressed_texture_s3tc_srgb

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for WEBGL_compressed_texture_s3tc_srgb

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

Formats the value using the given formatter.

impl Extension for WEBGL_compressed_texture_s3tc_srgb

const NAME: &'static str = "WEBGL_compressed_texture_s3tc_srgb"

impl From<WEBGL_compressed_texture_s3tc_srgb> for Reference

fn from(value: WEBGL_compressed_texture_s3tc_srgb) -> Self

Converts to this type from the input type.

impl InstanceOf for WEBGL_compressed_texture_s3tc_srgb

fn instance_of(_reference: &Reference) -> bool

Checks whenever a given Reference if of type Self.

impl ReferenceType for WEBGL_compressed_texture_s3tc_srgb

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_s3tc_srgb

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_s3tc_srgb

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_s3tc_srgb

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_s3tc_srgb

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_s3tc_srgb> for Reference

type Error = Void

The type returned in the event of a conversion error.

fn try_from(
    value: WEBGL_compressed_texture_s3tc_srgb
) -> Result<Self, Self::Error>

Performs the conversion.

impl JsSerialize for WEBGL_compressed_texture_s3tc_srgb