diff options
| author | Christoph Bumiller <e0425955@student.tuwien.ac.at> | 2011-03-13 13:05:14 +0100 |
|---|---|---|
| committer | Christoph Bumiller <e0425955@student.tuwien.ac.at> | 2011-03-13 13:23:54 +0100 |
| commit | f0ee7d8bb46ac7694693f3fb8cd0f15c422f1bef (patch) | |
| tree | 2542af2077e4ee01a3638605e98bb3e027ef2e45 /src/gallium/drivers/nvc0/nvc0_state_validate.c | |
| parent | d9f1310e519ac8182329fcd3e6c357d44d110955 (diff) | |
nvc0: don't enable early-z if alpha test is enabled
Depth values are also written before the shader is executed, so if
early tests are enabled, fragments that failed the alpha test were
modifying the depth buffer, but they shouldn't.
Diffstat (limited to 'src/gallium/drivers/nvc0/nvc0_state_validate.c')
| -rw-r--r-- | src/gallium/drivers/nvc0/nvc0_state_validate.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/src/gallium/drivers/nvc0/nvc0_state_validate.c b/src/gallium/drivers/nvc0/nvc0_state_validate.c index c37a070bc6..4daa968de5 100644 --- a/src/gallium/drivers/nvc0/nvc0_state_validate.c +++ b/src/gallium/drivers/nvc0/nvc0_state_validate.c @@ -387,6 +387,20 @@ nvc0_constbufs_validate(struct nvc0_context *nvc0) } } +static void +nvc0_validate_derived_1(struct nvc0_context *nvc0) +{ + struct nouveau_channel *chan = nvc0->screen->base.channel; + boolean early_z; + + early_z = nvc0->fragprog->fp.early_z && !nvc0->zsa->pipe.alpha.enabled; + + if (early_z != nvc0->state.early_z) { + nvc0->state.early_z = early_z; + IMMED_RING(chan, RING_3D(EARLY_FRAGMENT_TESTS), early_z); + } +} + static struct state_validate { void (*func)(struct nvc0_context *); uint32_t states; @@ -406,6 +420,7 @@ static struct state_validate { { nvc0_tevlprog_validate, NVC0_NEW_TEVLPROG }, { nvc0_gmtyprog_validate, NVC0_NEW_GMTYPROG }, { nvc0_fragprog_validate, NVC0_NEW_FRAGPROG }, + { nvc0_validate_derived_1, NVC0_NEW_FRAGPROG | NVC0_NEW_ZSA }, { nvc0_constbufs_validate, NVC0_NEW_CONSTBUF }, { nvc0_validate_textures, NVC0_NEW_TEXTURES }, { nvc0_validate_samplers, NVC0_NEW_SAMPLERS }, |