nv50: get clear-scissor working

2 files changed, 36 insertions, 9 deletions

diff --git a/src/gallium/drivers/nv50/nv50_context.h b/src/gallium/drivers/nv50/nv50_context.h
index 4ea01009fb6..9b77fc1225d 100644
--- a/src/gallium/drivers/nv50/nv50_context.h
+++ b/src/gallium/drivers/nv50/nv50_context.h
@@ -86,6 +86,7 @@ struct nv50_state {
 	struct nouveau_stateobj *scissor;
 	unsigned scissor_enabled;
 	struct nouveau_stateobj *viewport;
+	unsigned viewport_bypass;
 	struct nouveau_stateobj *tsc_upload;
 	struct nouveau_stateobj *tic_upload;
 	struct nouveau_stateobj *vertprog;
diff --git a/src/gallium/drivers/nv50/nv50_state_validate.c b/src/gallium/drivers/nv50/nv50_state_validate.c
index 88ef685bb1f..bd1f048f878 100644
--- a/src/gallium/drivers/nv50/nv50_state_validate.c
+++ b/src/gallium/drivers/nv50/nv50_state_validate.c
@@ -228,17 +228,43 @@ nv50_state_validate(struct nv50_context *nv50)
 scissor_uptodate:
 
 	if (nv50->dirty & NV50_NEW_VIEWPORT) {
-		so = so_new(8, 0);
-		so_method(so, tesla, NV50TCL_VIEWPORT_UNK1(0), 3);
-		so_data  (so, fui(nv50->viewport.translate[0]));
-		so_data  (so, fui(nv50->viewport.translate[1]));
-		so_data  (so, fui(nv50->viewport.translate[2]));
-		so_method(so, tesla, NV50TCL_VIEWPORT_UNK0(0), 3);
-		so_data  (so, fui(nv50->viewport.scale[0]));
-		so_data  (so, fui(-nv50->viewport.scale[1]));
-		so_data  (so, fui(nv50->viewport.scale[2]));
+		unsigned bypass;
+
+		if (!nv50->rasterizer->pipe.bypass_clipping)
+			bypass = 0;
+		else
+			bypass = 1;
+
+		if (nv50->state.viewport &&
+		    (bypass || !(nv50->dirty & NV50_NEW_VIEWPORT)) &&
+		    nv50->state.viewport_bypass == bypass)
+			goto viewport_uptodate;
+		nv50->state.viewport_bypass = bypass;
+
+		so = so_new(12, 0);
+		if (!bypass) {
+			so_method(so, tesla, NV50TCL_VIEWPORT_UNK1(0), 3);
+			so_data  (so, fui(nv50->viewport.translate[0]));
+			so_data  (so, fui(nv50->viewport.translate[1]));
+			so_data  (so, fui(nv50->viewport.translate[2]));
+			so_method(so, tesla, NV50TCL_VIEWPORT_UNK0(0), 3);
+			so_data  (so, fui(nv50->viewport.scale[0]));
+			so_data  (so, fui(-nv50->viewport.scale[1]));
+			so_data  (so, fui(nv50->viewport.scale[2]));
+			so_method(so, tesla, 0x192c, 1);
+			so_data  (so, 1);
+			so_method(so, tesla, 0x0f90, 1);
+			so_data  (so, 0);
+		} else {
+			so_method(so, tesla, 0x192c, 1);
+			so_data  (so, 0);
+			so_method(so, tesla, 0x0f90, 1);
+			so_data  (so, 1);
+		}
+
 		so_ref(so, &nv50->state.viewport);
 	}
+viewport_uptodate:
 
 	if (nv50->dirty & NV50_NEW_SAMPLER) {
 		int i;