glCompressedTexSubImage1D Interface to
OpenGL function glCompressedTexSubImage1D
usage: glCompressedTexSubImage1D( target, level, xoffset, width, format, imageSize, data )
C function: void glCompressedTexSubImage1D(GLenum target, GLint level, GLint xoffset, GLsizei width, GLenum format, GLsizei imageSize, const GLvoid* data)
Psychtoolbox/PsychOpenGL/MOGL/wrap/glCompressedTexSubImage1D.m