Enum ImageBufferKind

#[repr(u8)]
pub enum ImageBufferKind {
    Texture2D = 0,
    TextureRect = 1,
    TextureExternal = 2,
    TextureExternalBT709 = 3,
}

Specifies the type of texture target in driver terms.

Variants

Texture2D = 0

Standard texture. This maps to GL_TEXTURE_2D in OpenGL.

TextureRect = 1

Rectangle texture. This maps to GL_TEXTURE_RECTANGLE in OpenGL. This is similar to a standard texture, with a few subtle differences (no mipmaps, non-power-of-two dimensions, different coordinate space) that make it useful for representing the kinds of textures we use in WebRender. See https://www.khronos.org/opengl/wiki/Rectangle_Texture for background on Rectangle textures.

TextureExternal = 2

External texture. This maps to GL_TEXTURE_EXTERNAL_OES in OpenGL, which is an extension. This is used for image formats that OpenGL doesn’t understand, particularly YUV. See https://www.khronos.org/registry/OpenGL/extensions/OES/OES_EGL_image_external.txt

TextureExternalBT709 = 3

External texture which is forced to be converted from YUV to RGB using BT709 colorspace. This maps to GL_TEXTURE_EXTERNAL_OES in OpenGL, using the EXT_YUV_TARGET extension. https://registry.khronos.org/OpenGL/extensions/EXT/EXT_YUV_target.txt

Trait Implementations

impl Clone for ImageBufferKind

fn clone(&self) -> ImageBufferKind

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for ImageBufferKind

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for ImageBufferKind

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Hash for ImageBufferKind

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for ImageBufferKind

fn eq(&self, other: &ImageBufferKind) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for ImageBufferKind

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Copy for ImageBufferKind

impl Eq for ImageBufferKind

impl StructuralPartialEq for ImageBufferKind