-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 08/25/2011 06:28 AM, Brian Paul wrote: > How would the TXQ instruction be implemented for a hardware driver? > > Is there really a HW GPU instruction that returns the size of a texture? > > Otherwise, this seems like something we could implement in the state > tracker by putting the texture size into a constant buffer slot. Then > we'd have it for all drivers.
I've thought about this too, but TXQ is a required feature of GL3 / DX10 hardware. I think the right way to handle it on hardware that doesn't do it natively would be a lowering pass at the GLSL IR level. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) Comment: Using GnuPG with Fedora - http://enigmail.mozdev.org/ iEYEARECAAYFAk5WV3wACgkQX1gOwKyEAw9j0gCbBsn/SyGUB66chFkAKr04nVIC 9CwAmgPQTt3RKPfJce+T9Hnf7pFiQnAM =36x8 -----END PGP SIGNATURE----- _______________________________________________ mesa-dev mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/mesa-dev
