-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 HENRY David wrote: > Hello, > > I'm using xorg-edgers' packages on Ubuntu Jaunty, so I have equivalent > of mesa 7.5 from git (intel 945GM), up to date.
You might try building from source. Some changes were recently (last week?) made to the mesa_7_5_branch that change the way VBOs are allocated on that platform. > Recently (but unfortunately I can't tell exactly when), some of my own > OpenGL programs using VBOs and glMapBuffer broke. I'm not sure if it's a > bug of the intel DRI driver or a misuse of glMapBuffer, so I first ask > on the list before possibly filling a bug report. > > I'm attaching a little OpenGL program showing the problem. It displays a > rotating cube. When using glMapBuffer/memcpy/glUnmapBuffer, it works for > the first frame and crashes for the next one. If I use glBufferData it > works fine. Try two things: 1. Verify that sizeof(cube) == (24 * sizeof(struct VN_t)). 2. Change the GL_WRITE_ONLY_ARB to GL_READ_WRITE_ARB. > Is it expected, or is it a bug? It's certainly a bug. The only question is in whose code. :) -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iEYEARECAAYFAkpCr2MACgkQX1gOwKyEAw+uTACdHyTQj7MaUBck7+bEEa2lLpya 1XYAn0bFAEUHo5ND3Vj9xoco2C37jeTp =J85c -----END PGP SIGNATURE----- ------------------------------------------------------------------------------ -- _______________________________________________ Dri-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/dri-devel
