Definition
WebGL WEBGL_compressed_texture_etc Extension Specification defines WEBGL_compressed_texture_etc
[Exposed=(Window,Worker), LegacyNoInterfaceObject]
interface WEBGL_compressed_texture_etc {
/* Compressed Texture Formats */
const GLenum COMPRESSED_R11_EAC = 0x9270;
const GLenum COMPRESSED_SIGNED_R11_EAC = 0x9271;
const GLenum COMPRESSED_RG11_EAC = 0x9272;
const GLenum COMPRESSED_SIGNED_RG11_EAC = 0x9273;
const GLenum COMPRESSED_RGB8_ETC2 = 0x9274;
const GLenum COMPRESSED_SRGB8_ETC2 = 0x9275;
const GLenum COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2 = 0x9276;
const GLenum COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2 = 0x9277;
const GLenum COMPRESSED_RGBA8_ETC2_EAC = 0x9278;
const GLenum COMPRESSED_SRGB8_ALPHA8_ETC2_EAC = 0x9279;
};