From: Dave Airlie <airlied@redhat.com>
Date: Sun, 24 Apr 2011 10:20:55 +0000 (+1000)
Subject: r600g: fix glean clipflat test.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=0a9cec3475fb14be8aa5fa66557d338556cd8ed5;p=mesa.git

r600g: fix glean clipflat test.

the provoking vertex doesn't apply to quad/strip/polygon.

This fixes clipFlat on r600g.

Signed-off-by: Dave Airlie <airlied@redhat.com>
---

diff --git a/src/gallium/drivers/r600/r600_pipe.h b/src/gallium/drivers/r600/r600_pipe.h
index 88aff0e81bb..40987a0e2de 100644
--- a/src/gallium/drivers/r600/r600_pipe.h
+++ b/src/gallium/drivers/r600/r600_pipe.h
@@ -241,7 +241,6 @@ int r600_find_vs_semantic_index(struct r600_shader *vs,
 
 /* r600_state.c */
 void r600_init_state_functions(struct r600_pipe_context *rctx);
-void r600_spi_update(struct r600_pipe_context *rctx);
 void r600_init_config(struct r600_pipe_context *rctx);
 void r600_pipe_shader_ps(struct pipe_context *ctx, struct r600_pipe_shader *shader);
 void r600_pipe_shader_vs(struct pipe_context *ctx, struct r600_pipe_shader *shader);
diff --git a/src/gallium/drivers/r600/r600_state_common.c b/src/gallium/drivers/r600/r600_state_common.c
index 997c9a597ee..2f1068a0631 100644
--- a/src/gallium/drivers/r600/r600_state_common.c
+++ b/src/gallium/drivers/r600/r600_state_common.c
@@ -277,7 +277,7 @@ void r600_delete_vs_shader(struct pipe_context *ctx, void *state)
 }
 
 /* FIXME optimize away spi update when it's not needed */
-void r600_spi_update(struct r600_pipe_context *rctx)
+static void r600_spi_update(struct r600_pipe_context *rctx, unsigned prim)
 {
 	struct r600_pipe_shader *shader = rctx->ps_shader;
 	struct r600_pipe_state rstate;
@@ -309,6 +309,12 @@ void r600_spi_update(struct r600_pipe_context *rctx)
 
 		r600_pipe_state_add_reg(&rstate, R_028644_SPI_PS_INPUT_CNTL_0 + i * 4, tmp, 0xFFFFFFFF, NULL);
 	}
+
+	if (prim == PIPE_PRIM_QUADS || prim == PIPE_PRIM_QUAD_STRIP || prim == PIPE_PRIM_POLYGON) {
+		r600_pipe_state_add_reg(&rstate, R_028814_PA_SU_SC_MODE_CNTL,
+					S_028814_PROVOKING_VTX_LAST(1),
+					S_028814_PROVOKING_VTX_LAST(1), NULL);
+	}
 	r600_context_pipe_state_set(&rctx->ctx, &rstate);
 }
 
@@ -508,7 +514,7 @@ void r600_draw_vbo(struct pipe_context *ctx, const struct pipe_draw_info *info)
 		return;
 	}
 
-	r600_spi_update(rctx);
+	r600_spi_update(rctx, draw.info.mode);
 
 	mask = 0;
 	for (int i = 0; i < rctx->framebuffer.nr_cbufs; i++) {