nv30: add state stipple, based on nv40 one

3 files changed, 42 insertions, 0 deletions

diff --git a/src/gallium/drivers/nv30/Makefile b/src/gallium/drivers/nv30/Makefile
index 134130c0e0..91601087a3 100644
--- a/src/gallium/drivers/nv30/Makefile
+++ b/src/gallium/drivers/nv30/Makefile
@@ -18,6 +18,7 @@ DRIVER_SOURCES = \
 	nv30_state_fb.c \
 	nv30_state_rasterizer.c \
 	nv30_state_scissor.c \
+	nv30_state_stipple.c \
 	nv30_surface.c \
 	nv30_vbo.c \
 	nv30_vertprog.c
diff --git a/src/gallium/drivers/nv30/nv30_context.h b/src/gallium/drivers/nv30/nv30_context.h
index 428f17ae0d..446e43a726 100644
--- a/src/gallium/drivers/nv30/nv30_context.h
+++ b/src/gallium/drivers/nv30/nv30_context.h
@@ -91,6 +91,7 @@ struct nv30_blend_state_new {
 
 struct nv30_state {
 	unsigned scissor_enabled;
+	unsigned stipple_enabled;
 
 	struct nouveau_stateobj *hw[NV30_STATE_MAX];
 };
@@ -121,6 +122,7 @@ struct nv30_context {
 	struct pipe_blend_color blend_colour;
 	struct pipe_framebuffer_state framebuffer;
 	struct nv30_rasterizer_state_new *rasterizer;
+	unsigned stipple[32];
 
 	uint32_t rt_enable;
 	struct pipe_buffer *rt[2];
diff --git a/src/gallium/drivers/nv30/nv30_state_stipple.c b/src/gallium/drivers/nv30/nv30_state_stipple.c
new file mode 100644
index 0000000000..41b42813b4
--- /dev/null
+++ b/src/gallium/drivers/nv30/nv30_state_stipple.c
@@ -0,0 +1,39 @@
+#include "nv30_context.h"
+
+static boolean
+nv30_state_stipple_validate(struct nv30_context *nv30)
+{
+	struct pipe_rasterizer_state *rast = &nv30->rasterizer->pipe;
+	struct nouveau_grobj *rankine = nv30->screen->rankine;
+	struct nouveau_stateobj *so;
+
+	if (nv30->state.hw[NV30_STATE_STIPPLE] &&
+	   (rast->poly_stipple_enable == 0 && nv30->state.stipple_enabled == 0))
+		return FALSE;
+
+	if (rast->poly_stipple_enable) {
+		unsigned i;
+
+		so = so_new(35, 0);
+		so_method(so, rankine, NV34TCL_POLYGON_STIPPLE_ENABLE, 1);
+		so_data  (so, 1);
+		so_method(so, rankine, NV34TCL_POLYGON_STIPPLE_PATTERN(0), 32);
+		for (i = 0; i < 32; i++)
+			so_data(so, nv30->stipple[i]);
+	} else {
+		so = so_new(2, 0);
+		so_method(so, rankine, NV34TCL_POLYGON_STIPPLE_ENABLE, 1);
+		so_data  (so, 0);
+	}
+
+	so_ref(so, &nv30->state.hw[NV30_STATE_STIPPLE]);
+	return TRUE;
+}
+
+struct nv30_state_entry nv30_state_stipple = {
+	.validate = nv30_state_stipple_validate,
+	.dirty = {
+		.pipe = NV30_NEW_STIPPLE | NV30_NEW_RAST,
+		.hw = NV30_STATE_STIPPLE,
+	}
+};