From cd9ed05aec9d1d9614973165fd13647ba2e1b8c7 Mon Sep 17 00:00:00 2001
From: Ben Skeggs <skeggsb@gmail.com>
Date: Wed, 12 Mar 2008 04:50:53 +1100
Subject: [PATCH] nv50: start on fb state

---
 src/gallium/drivers/nv50/nv50_context.h       |  2 +
 src/gallium/drivers/nv50/nv50_state.c         |  4 +
 .../drivers/nv50/nv50_state_validate.c        | 93 +++++++++++++++++++
 3 files changed, 99 insertions(+)

diff --git a/src/gallium/drivers/nv50/nv50_context.h b/src/gallium/drivers/nv50/nv50_context.h
index d839cf701eb..f532fa6bfb3 100644
--- a/src/gallium/drivers/nv50/nv50_context.h
+++ b/src/gallium/drivers/nv50/nv50_context.h
@@ -29,6 +29,7 @@
 #define NV50_NEW_SCISSOR	(1 << 4)
 #define NV50_NEW_VIEWPORT	(1 << 5)
 #define NV50_NEW_RASTERIZER	(1 << 6)
+#define NV50_NEW_FRAMEBUFFER	(1 << 7)
 
 struct nv50_blend_stateobj {
 	struct pipe_blend_state pipe;
@@ -61,6 +62,7 @@ struct nv50_context {
 	struct pipe_poly_stipple stipple;
 	struct pipe_scissor_state scissor;
 	struct pipe_viewport_state viewport;
+	struct pipe_framebuffer_state framebuffer;
 };
 
 static INLINE struct nv50_context *
diff --git a/src/gallium/drivers/nv50/nv50_state.c b/src/gallium/drivers/nv50/nv50_state.c
index 088df9e6756..aa65fd482e4 100644
--- a/src/gallium/drivers/nv50/nv50_state.c
+++ b/src/gallium/drivers/nv50/nv50_state.c
@@ -386,6 +386,10 @@ static void
 nv50_set_framebuffer_state(struct pipe_context *pipe,
 			   const struct pipe_framebuffer_state *fb)
 {
+	struct nv50_context *nv50 = nv50_context(pipe);
+
+	nv50->framebuffer = *fb;
+	nv50->dirty |= NV50_NEW_FRAMEBUFFER;
 }
 
 static void
diff --git a/src/gallium/drivers/nv50/nv50_state_validate.c b/src/gallium/drivers/nv50/nv50_state_validate.c
index 8921bfaf887..68d419f9fc8 100644
--- a/src/gallium/drivers/nv50/nv50_state_validate.c
+++ b/src/gallium/drivers/nv50/nv50_state_validate.c
@@ -1,6 +1,96 @@
 #include "nv50_context.h"
 #include "nouveau/nouveau_stateobj.h"
 
+static void
+nv50_state_validate_fb(struct nv50_context *nv50)
+{
+	struct nouveau_grobj *tesla = nv50->screen->tesla;
+	struct nouveau_stateobj *so = so_new(128, 18);
+	struct pipe_framebuffer_state *fb = &nv50->framebuffer;
+	unsigned i, w, h, gw = 0;
+
+	for (i = 0; i < fb->num_cbufs; i++) {
+		if (!gw) {
+			w = fb->cbufs[i]->width;
+			h = fb->cbufs[i]->height;
+			gw = 1;
+		} else {
+			assert(w != fb->cbufs[i]->width);
+			assert(h != fb->cbufs[i]->height);
+		}
+
+		so_method(so, tesla, NV50TCL_RT_HORIZ(i), 2);
+		so_data  (so, fb->cbufs[i]->width);
+		so_data  (so, fb->cbufs[i]->height);
+
+		so_method(so, tesla, NV50TCL_RT_ADDRESS_HIGH(i), 5);
+		so_reloc (so, fb->cbufs[i]->buffer, fb->cbufs[i]->offset,
+			  NOUVEAU_BO_VRAM | NOUVEAU_BO_HIGH, 0, 0);
+		so_reloc (so, fb->cbufs[i]->buffer, fb->cbufs[i]->offset,
+			  NOUVEAU_BO_VRAM | NOUVEAU_BO_LOW, 0, 0);
+		switch (fb->cbufs[i]->format) {
+		case PIPE_FORMAT_A8R8G8B8_UNORM:
+			so_data(so, 0xcf);
+			break;
+		case PIPE_FORMAT_R5G6B5_UNORM:
+			so_data(so, 0xe8);
+			break;
+		default:
+			{
+				char fmt[128];
+				pf_sprint_name(fmt, fb->cbufs[i]->format);
+				NOUVEAU_ERR("AIIII unknown format %s\n", fmt);
+			}		    
+			so_data(so, 0xe6);
+			break;
+		}
+		so_data(so, 0x00000040);
+		so_data(so, 0x00000000);
+	}
+
+	if (fb->zsbuf) {
+		if (!gw) {
+			w = fb->zsbuf->width;
+			h = fb->zsbuf->height;
+			gw = 1;
+		} else {
+			assert(w != fb->zsbuf->width);
+			assert(h != fb->zsbuf->height);
+		}
+
+		so_method(so, tesla, NV50TCL_RT_ADDRESS_HIGH(i), 5);
+		so_reloc (so, fb->zsbuf->buffer, fb->zsbuf->offset,
+			  NOUVEAU_BO_VRAM | NOUVEAU_BO_HIGH, 0, 0);
+		so_reloc (so, fb->zsbuf->buffer, fb->zsbuf->offset,
+			  NOUVEAU_BO_VRAM | NOUVEAU_BO_LOW, 0, 0);
+		switch (fb->zsbuf->format) {
+		case PIPE_FORMAT_Z24S8_UNORM:
+			so_data(so, 0x16);
+			break;
+		default:
+			{
+				char fmt[128];
+				pf_sprint_name(fmt, fb->zsbuf->format);
+				NOUVEAU_ERR("AIIII unknown format %s\n", fmt);
+			}		    
+			so_data(so, 0x16);
+			break;
+		}
+		so_data(so, 0x00000040);
+		so_data(so, 0x00000000);
+	}
+
+	so_method(so, tesla, NV50TCL_VIEWPORT_HORIZ, 2);
+	so_data  (so, w << 16);
+	so_data  (so, h << 16);
+	so_method(so, tesla, 0xff0, 2);
+	so_data  (so, w << 16);
+	so_data  (so, h << 16);
+
+	so_emit(nv50->screen->nvws, so);
+	so_ref(NULL, &so);
+}
+
 boolean
 nv50_state_validate(struct nv50_context *nv50)
 {
@@ -9,6 +99,9 @@ nv50_state_validate(struct nv50_context *nv50)
 	struct nouveau_stateobj *so;
 	unsigned i;
 
+	if (nv50->dirty & NV50_NEW_FRAMEBUFFER)
+		nv50_state_validate_fb(nv50);
+
 	if (nv50->dirty & NV50_NEW_BLEND)
 		so_emit(nvws, nv50->blend->so);
 
-- 
2.30.2