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author | Kenneth Graunke <[email protected]> | 2015-06-17 13:06:18 -0700 |
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committer | Kenneth Graunke <[email protected]> | 2015-10-28 22:05:08 -0700 |
commit | 8c902a580a490181e7cde29073b11181db4614f8 (patch) | |
tree | 257fb3e408e1e87771759acf57832c3f5572f484 /docs | |
parent | 5392328a3218c0a69301badefe8fed79ca0d8642 (diff) |
i965: Implement ARB_fragment_layer_viewport.
Normally, we could read gl_Layer from bits 26:16 of R0.0. However, the
specification requires that bogus out-of-range 32-bit values written by
previous stages need to appear in the fragment shader as-written.
Instead, we pass in the full 32-bit value from the VUE header as an
extra flat-shaded varying. We have the SF override the value to 0
when the previous stage didn't actually write a value (it's actually
defined to return 0).
Signed-off-by: Kenneth Graunke <[email protected]>
Reviewed-by: Chris Forbes <[email protected]>
Diffstat (limited to 'docs')
0 files changed, 0 insertions, 0 deletions