nv50, nvc0: enable at least one color RT if alphatest is enabled

Fixes the following piglits:
  fbo-alphatest-nocolor
  fbo-alphatest-nocolor-ff

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Cc: mesa-stable@lists.freedesktop.org
This commit is contained in:
Ilia Mirkin 2015-07-10 16:42:18 -04:00
parent 4fe15717ce
commit 1bfa25e88d
2 changed files with 36 additions and 0 deletions

View File

@ -296,6 +296,23 @@ nv50_check_program_ucps(struct nv50_context *nv50,
nv50_fp_linkage_validate(nv50);
}
/* 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
* nv50_validate_fb, otherwise that will override the RT count setting.
*/
static void
nv50_validate_derived_2(struct nv50_context *nv50)
{
struct nouveau_pushbuf *push = nv50->base.pushbuf;
if (nv50->zsa && nv50->zsa->pipe.alpha.enabled &&
nv50->framebuffer.nr_cbufs == 0) {
nv50_fb_set_null_rt(push, 0);
BEGIN_NV04(push, NV50_3D(RT_CONTROL), 1);
PUSH_DATA (push, (076543210 << 4) | 1);
}
}
static void
nv50_validate_clip(struct nv50_context *nv50)
{
@ -456,6 +473,7 @@ static struct state_validate {
{ nv50_gp_linkage_validate, NV50_NEW_GMTYPROG | NV50_NEW_VERTPROG },
{ nv50_validate_derived_rs, NV50_NEW_FRAGPROG | NV50_NEW_RASTERIZER |
NV50_NEW_VERTPROG | NV50_NEW_GMTYPROG },
{ nv50_validate_derived_2, NV50_NEW_ZSA | NV50_NEW_FRAMEBUFFER },
{ nv50_validate_clip, NV50_NEW_CLIP | NV50_NEW_RASTERIZER |
NV50_NEW_VERTPROG | NV50_NEW_GMTYPROG },
{ nv50_constbufs_validate, NV50_NEW_CONSTBUF },

View File

@ -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 |