diff options
Diffstat (limited to 'src/gallium/drivers/nouveau/nvc0')
| -rw-r--r-- | src/gallium/drivers/nouveau/nvc0/nvc0_state_validate.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/src/gallium/drivers/nouveau/nvc0/nvc0_state_validate.c b/src/gallium/drivers/nouveau/nvc0/nvc0_state_validate.c index c52399ab312..785e52e9561 100644 --- a/src/gallium/drivers/nouveau/nvc0/nvc0_state_validate.c +++ b/src/gallium/drivers/nouveau/nvc0/nvc0_state_validate.c @@ -535,6 +535,23 @@ nvc0_validate_derived_1(struct nvc0_context *nvc0) } } +/* alpha test is disabled if there are no color RTs, so make sure we have at + * least one if alpha test is enabled. Note that this must run after + * nvc0_validate_fb, otherwise that will override the RT count setting. + */ +static void +nvc0_validate_derived_2(struct nvc0_context *nvc0) +{ + struct nouveau_pushbuf *push = nvc0->base.pushbuf; + + if (nvc0->zsa && nvc0->zsa->pipe.alpha.enabled && + nvc0->framebuffer.nr_cbufs == 0) { + nvc0_fb_set_null_rt(push, 0); + BEGIN_NVC0(push, NVC0_3D(RT_CONTROL), 1); + PUSH_DATA (push, (076543210 << 4) | 1); + } +} + static void nvc0_switch_pipe_context(struct nvc0_context *ctx_to) { @@ -597,6 +614,7 @@ static struct state_validate { { nvc0_fragprog_validate, NVC0_NEW_FRAGPROG }, { nvc0_validate_derived_1, NVC0_NEW_FRAGPROG | NVC0_NEW_ZSA | NVC0_NEW_RASTERIZER }, + { nvc0_validate_derived_2, NVC0_NEW_ZSA | NVC0_NEW_FRAMEBUFFER }, { nvc0_validate_clip, NVC0_NEW_CLIP | NVC0_NEW_RASTERIZER | NVC0_NEW_VERTPROG | NVC0_NEW_TEVLPROG | |