code: func GetCompressedTextureSubImage(texture uint32, level int32, xoffset int32, yoffset int32, zoffset int32, width int32, height int32, depth int32, bufSize int32, pixels unsafe.Pointer) {
  	C.glowGetCompressedTextureSubImage(gpGetCompressedTextureSubImage, (C.GLuint)(texture), (C.GLint)(level), (C.GLint)(xoffset), (C.GLint)(yoffset), (C.GLint)(zoffset), (C.GLsizei)(width), (C.GLsizei)(height), (C.GLsizei)(depth), (C.GLsizei)(bufSize), pixels)
  }
docs: // retrieve a sub-region of a compressed texture image from a     compressed texture object