diff options
| author | Marek Olšák <[email protected]> | 2016-04-07 21:37:43 +0200 |
|---|---|---|
| committer | Marek Olšák <[email protected]> | 2016-04-12 14:29:48 +0200 |
| commit | b0d4469519bf07c4051af8eb86ab71647fb1eb61 (patch) | |
| tree | 496d351d1677460b9df66dd08733948afa4ad23f /src/gallium/drivers/radeonsi/si_state.c | |
| parent | ddd33431c54379ecf0dce71078e34a07be82e2fc (diff) | |
radeonsi: disable aniso filtering for non-mipmap textures on SI-CI
The closed driver does this, but it looks at base_level and last_level
and uses a conditional assignment, which LLVM can't generate on SGPRs.
That led me to invent this solution that abuses the image descriptor.
Reviewed-by: Nicolai Hähnle <[email protected]>
Diffstat (limited to 'src/gallium/drivers/radeonsi/si_state.c')
| -rw-r--r-- | src/gallium/drivers/radeonsi/si_state.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/src/gallium/drivers/radeonsi/si_state.c b/src/gallium/drivers/radeonsi/si_state.c index fe27ca5ac16..d75565a5c24 100644 --- a/src/gallium/drivers/radeonsi/si_state.c +++ b/src/gallium/drivers/radeonsi/si_state.c @@ -3136,6 +3136,16 @@ si_make_texture_descriptor(struct si_screen *screen, } else { state[6] = 0; state[7] = 0; + + /* The last dword is unused by hw. The shader uses it to clear + * bits in the first dword of sampler state. + */ + if (screen->b.chip_class <= CIK && res->nr_samples <= 1) { + if (first_level == last_level) + state[7] = C_008F30_MAX_ANISO_RATIO; + else + state[7] = 0xffffffff; + } } /* Initialize the sampler view for FMASK. */ |