diff options
| author | Alyssa Rosenzweig <[email protected]> | 2020-05-14 13:29:54 -0400 |
|---|---|---|
| committer | Marge Bot <[email protected]> | 2020-05-21 17:49:14 +0000 |
| commit | ca48143ec4ba78ea472016add2c7531018549cbe (patch) | |
| tree | f9995c4816f3fcfae91bcef00de4abdaa904babd /src/panfrost/midgard/disassemble.c | |
| parent | f768cb04ed114d7ac65d8bfbaf130002c81448d6 (diff) | |
pan/mdg: Implement condense_writemask for 8-bit
Signed-off-by: Alyssa Rosenzweig <[email protected]>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5151>
Diffstat (limited to 'src/panfrost/midgard/disassemble.c')
| -rw-r--r-- | src/panfrost/midgard/disassemble.c | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/src/panfrost/midgard/disassemble.c b/src/panfrost/midgard/disassemble.c index e97cee163a2..9758904fb6e 100644 --- a/src/panfrost/midgard/disassemble.c +++ b/src/panfrost/midgard/disassemble.c @@ -56,8 +56,17 @@ static inline unsigned condense_writemask(unsigned expanded_mask, unsigned bits_per_component) { - if (bits_per_component == 8) - unreachable("XXX TODO: sort out how 8-bit constant encoding works"); + if (bits_per_component == 8) { + /* Duplicate every bit to go from 8 to 16-channel wrmask */ + unsigned omask = 0; + + for (unsigned i = 0; i < 8; ++i) { + if (expanded_mask & (1 << i)) + omask |= (3 << (2 * i)); + } + + return omask; + } unsigned slots_per_component = bits_per_component / 16; unsigned max_comp = (16 * 8) / bits_per_component; |