glCopyTexImage1D Interface to
OpenGL function glCopyTexImage1D
usage: glCopyTexImage1D( target, level, internalformat, x, y, width, border )
C function: void glCopyTexImage1D(GLenum target, GLint level, GLenum internalformat, GLint x, GLint y, GLsizei width, GLint border)
Psychtoolbox/PsychOpenGL/MOGL/wrap/glCopyTexImage1D.m