Fixes the following piglits:
fbo-alphatest-nocolor
fbo-alphatest-nocolor-ff
Signed-off-by: Ilia Mirkin <imir...@alum.mit.edu>
Cc: mesa-sta...@lists.freedesktop.org
---
The nv50 bits need testing, only have a GK208 on-hand. Will be sure to test
before pushing.
src/gallium/drivers/nouveau/nv50/nv50_state_validate.c | 18 ++++++++++++++++++
src/gallium/drivers/nouveau/nvc0/nvc0_state_validate.c | 18 ++++++++++++++++++
2 files changed, 36 insertions(+)
diff --git a/src/gallium/drivers/nouveau/nv50/nv50_state_validate.c
b/src/gallium/drivers/nouveau/nv50/nv50_state_validate.c
index 116bf4b..ead4b29 100644
--- a/src/gallium/drivers/nouveau/nv50/nv50_state_validate.c
+++ b/src/gallium/drivers/nouveau/nv50/nv50_state_validate.c
@@ -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
+ * nvc0_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 },
diff --git a/src/gallium/drivers/nouveau/nvc0/nvc0_state_validate.c
b/src/gallium/drivers/nouveau/nvc0/nvc0_state_validate.c
index c52399a..785e52e 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 |
--
2.3.6
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