GLX_SGIX_video_resize http://www.opengl.org/registry/specs/gl/SGIX/video_resize.txt GLX_SGIX_video_resize GLX_SYNC_FRAME_SGIX 0x00000000 GLX_SYNC_SWAP_SGIX 0x00000001 int glXBindChannelToWindowSGIX (Display* display, int screen, int channel, Window window) int glXChannelRectSGIX (Display* display, int screen, int channel, int x, int y, int w, int h) int glXChannelRectSyncSGIX (Display* display, int screen, int channel, GLenum synctype) int glXQueryChannelDeltasSGIX (Display* display, int screen, int channel, int *x, int *y, int *w, int *h) int glXQueryChannelRectSGIX (Display* display, int screen, int channel, int *dx, int *dy, int *dw, int *dh)