Definition
WebGL WEBGL_compressed_texture_s3tc Khronos Ratified Extension Specification defines WEBGL_compressed_texture_s3tc
[Exposed=(Window,Worker), LegacyNoInterfaceObject]
interface WEBGL_compressed_texture_s3tc {
/* Compressed Texture Formats */
const GLenum COMPRESSED_RGB_S3TC_DXT1_EXT = 0x83F0;
const GLenum COMPRESSED_RGBA_S3TC_DXT1_EXT = 0x83F1;
const GLenum COMPRESSED_RGBA_S3TC_DXT3_EXT = 0x83F2;
const GLenum COMPRESSED_RGBA_S3TC_DXT5_EXT = 0x83F3;
};