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author | Brian Paul <brianp@vmware.com> | 2009-06-16 18:19:45 -0600 |
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committer | Brian Paul <brianp@vmware.com> | 2009-06-16 18:21:26 -0600 |
commit | 6b917d0b1787280f976c2f0d1ead0e5d7587a3e9 (patch) | |
tree | d859568db35e590ec84f78dcb45bee3a2d38ac8e /progs/wgl/wglthreads/wglthreads.c | |
parent | 742ba084068b6856e94283a9c5fe3b39d48f64cb (diff) |
i965: fix bugs in projective texture coordinates
For the TXP instruction we check if the texcoord is really a 4-component
atttibute which requires the divide by W step. This check involved the
projtex_mask field. However, the projtex_mask field was being miscalculated
because of some confusion between vertex program outputs and fragment
program inputs.
1. Rework the size_masks calculation so we correctly set bits corresponding
to fragment program input attributes.
2. Rename projtex_mask to proj_attrib_mask since we're interested in more
than just texcoords (generic varying vars too).
3. Simply the indexing of the size_masks and proj_attrib_mask fields.
4. The tracker::active[] array was mis-dimensioned. Use MAX_PROGRAM_TEMPS
instead of a magic number.
5. Update comments, add new assertions.
With these changes the Lightsmark demo/benchmark renders correctly, until
we eventually hit a GPU lockup...
Diffstat (limited to 'progs/wgl/wglthreads/wglthreads.c')
0 files changed, 0 insertions, 0 deletions