glBindTexture( GL_TEXTURE_2D, ui_glyph_texture );
glTexImage2D( GL_TEXTURE_2D, 0, GL_R8, 256, 256, 0,
GL_RED, GL_UNSIGNED_BYTE, image );
glBindTexture( GL_TEXTURE_2D, ui_glyph_texture );
glTexImage2D( GL_TEXTURE_2D, 0, GL_R8, 256, 256, 0,
GL_RED, GL_UNSIGNED_BYTE, image );