From 06bd7d78b979df66915b161157f2b6b1c09ad285 Mon Sep 17 00:00:00 2001
From: Ben Skeggs <skeggsb@gmail.com>
Date: Wed, 12 Mar 2008 03:41:05 +1100
Subject: nv50: depth_stencil_alpha stateobj

---
 src/gallium/drivers/nv50/nv50_context.h        |  9 +++-
 src/gallium/drivers/nv50/nv50_state.c          | 70 +++++++++++++++++++++++++-
 src/gallium/drivers/nv50/nv50_state_validate.c |  3 ++
 3 files changed, 80 insertions(+), 2 deletions(-)

(limited to 'src/gallium/drivers')

diff --git a/src/gallium/drivers/nv50/nv50_context.h b/src/gallium/drivers/nv50/nv50_context.h
index 98b9aba079..9302764894 100644
--- a/src/gallium/drivers/nv50/nv50_context.h
+++ b/src/gallium/drivers/nv50/nv50_context.h
@@ -22,13 +22,19 @@
 #define NOUVEAU_MSG(fmt, args...) \
 	fprintf(stderr, "nouveau: "fmt, ##args);
 
-#define NV50_NEW_BLEND (1 << 0)
+#define NV50_NEW_BLEND	(1 << 0)
+#define NV50_NEW_ZSA	(1 << 1)
 
 struct nv50_blend_stateobj {
 	struct pipe_blend_state pipe;
 	struct nouveau_stateobj *so;
 };
 
+struct nv50_zsa_stateobj {
+	struct pipe_depth_stencil_alpha_state pipe;
+	struct nouveau_stateobj *so;
+};
+
 struct nv50_context {
 	struct pipe_context pipe;
 
@@ -39,6 +45,7 @@ struct nv50_context {
 
 	unsigned dirty;
 	struct nv50_blend_stateobj *blend;
+	struct nv50_zsa_stateobj *zsa;
 };
 
 static INLINE struct nv50_context *
diff --git a/src/gallium/drivers/nv50/nv50_state.c b/src/gallium/drivers/nv50/nv50_state.c
index 7a01100fd7..8fd4f774e2 100644
--- a/src/gallium/drivers/nv50/nv50_state.c
+++ b/src/gallium/drivers/nv50/nv50_state.c
@@ -127,17 +127,85 @@ static void *
 nv50_depth_stencil_alpha_state_create(struct pipe_context *pipe,
 			const struct pipe_depth_stencil_alpha_state *cso)
 {
-	return NULL;
+	struct nouveau_grobj *tesla = nv50_context(pipe)->screen->tesla;
+	struct nv50_zsa_stateobj *zsa = CALLOC_STRUCT(nv50_zsa_stateobj);
+	struct nouveau_stateobj *so = so_new(64, 0);
+
+	so_method(so, tesla, NV50TCL_DEPTH_WRITE_ENABLE, 1);
+	so_data  (so, cso->depth.writemask ? 1 : 0);
+	if (cso->depth.enabled) {
+		so_method(so, tesla, NV50TCL_DEPTH_TEST_ENABLE, 1);
+		so_data  (so, 1);
+		so_method(so, tesla, NV50TCL_DEPTH_TEST_FUNC, 1);
+		so_data  (so, nvgl_comparison_op(cso->depth.func));
+	} else {
+		so_method(so, tesla, NV50TCL_DEPTH_TEST_ENABLE, 1);
+		so_data  (so, 0);
+	}
+
+	if (cso->stencil[0].enabled) {
+		so_method(so, tesla, NV50TCL_STENCIL_FRONT_ENABLE, 5);
+		so_data  (so, 1);
+		so_data  (so, nvgl_stencil_op(cso->stencil[0].fail_op));
+		so_data  (so, nvgl_stencil_op(cso->stencil[0].zfail_op));
+		so_data  (so, nvgl_stencil_op(cso->stencil[0].zpass_op));
+		so_data  (so, nvgl_comparison_op(cso->stencil[0].func));
+		so_method(so, tesla, NV50TCL_STENCIL_FRONT_FUNC_REF, 3);
+		so_data  (so, cso->stencil[0].ref_value);
+		so_data  (so, cso->stencil[0].write_mask);
+		so_data  (so, cso->stencil[0].value_mask);
+	} else {
+		so_method(so, tesla, NV50TCL_STENCIL_FRONT_ENABLE, 1);
+		so_data  (so, 0);
+	}
+
+	if (cso->stencil[1].enabled) {
+		so_method(so, tesla, NV50TCL_STENCIL_BACK_ENABLE, 8);
+		so_data  (so, 1);
+		so_data  (so, nvgl_stencil_op(cso->stencil[1].fail_op));
+		so_data  (so, nvgl_stencil_op(cso->stencil[1].zfail_op));
+		so_data  (so, nvgl_stencil_op(cso->stencil[1].zpass_op));
+		so_data  (so, nvgl_comparison_op(cso->stencil[1].func));
+		so_data  (so, cso->stencil[1].ref_value);
+		so_data  (so, cso->stencil[1].write_mask);
+		so_data  (so, cso->stencil[1].value_mask);
+	} else {
+		so_method(so, tesla, NV50TCL_STENCIL_BACK_ENABLE, 1);
+		so_data  (so, 0);
+	}
+
+	if (cso->alpha.enabled) {
+		so_method(so, tesla, NV50TCL_ALPHA_TEST_ENABLE, 1);
+		so_data  (so, 1);
+		so_method(so, tesla, NV50TCL_ALPHA_TEST_REF, 2);
+		so_data  (so, fui(cso->alpha.ref));
+		so_data  (so, nvgl_comparison_op(cso->alpha.func));
+	} else {
+		so_method(so, tesla, NV50TCL_ALPHA_TEST_ENABLE, 1);
+		so_data  (so, 0);
+	}
+
+	zsa->pipe = *cso;
+	so_ref(so, &zsa->so);
+	return (void *)zsa;
 }
 
 static void
 nv50_depth_stencil_alpha_state_bind(struct pipe_context *pipe, void *hwcso)
 {
+	struct nv50_context *nv50 = nv50_context(pipe);
+
+	nv50->zsa = hwcso;
+	nv50->dirty |= NV50_NEW_ZSA;
 }
 
 static void
 nv50_depth_stencil_alpha_state_delete(struct pipe_context *pipe, void *hwcso)
 {
+	struct nv50_zsa_stateobj *zsa = hwcso;
+
+	so_ref(NULL, &zsa->so);
+	FREE(zsa);
 }
 
 static void *
diff --git a/src/gallium/drivers/nv50/nv50_state_validate.c b/src/gallium/drivers/nv50/nv50_state_validate.c
index a89d1526c5..786987c76a 100644
--- a/src/gallium/drivers/nv50/nv50_state_validate.c
+++ b/src/gallium/drivers/nv50/nv50_state_validate.c
@@ -8,7 +8,10 @@ nv50_state_validate(struct nv50_context *nv50)
 
 	if (nv50->dirty & NV50_NEW_BLEND)
 		so_emit(nvws, nv50->blend->so);
+	if (nv50->dirty & NV50_NEW_ZSA)
+		so_emit(nvws, nv50->zsa->so);
 
+	nv50->dirty = 0;
 	return TRUE;
 }
 
-- 
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