Mesa (master): r600g: optimize spi update

[Jerome Glisse]

Module: Mesa
Branch: master
Commit: d81126b714cd4de0ab036bb22bf4103f5fcec015
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=d81126b714cd4de0ab036bb22bf4103f5fcec015

Author: Vadim Girlin <vadimgirlin at gmail.com>
Date:   Fri Jun 24 20:29:12 2011 +0400

r600g: optimize spi update

Signed-off-by: Vadim Girlin <vadimgirlin at gmail.com>

---

 src/gallium/drivers/r600/r600_pipe.h         |    1 +
 src/gallium/drivers/r600/r600_state_common.c |   10 +++++++---
 2 files changed, 8 insertions(+), 3 deletions(-)

diff --git a/src/gallium/drivers/r600/r600_pipe.h b/src/gallium/drivers/r600/r600_pipe.h
index 9941bbf..63ddd39 100644
--- a/src/gallium/drivers/r600/r600_pipe.h
+++ b/src/gallium/drivers/r600/r600_pipe.h
@@ -202,6 +202,7 @@ struct r600_pipe_context {
 	struct pipe_query		*saved_render_cond;
 	unsigned			saved_render_cond_mode;
 	/* shader information */
+	boolean				spi_dirty;
 	unsigned			sprite_coord_enable;
 	boolean				flatshade;
 	boolean				export_16bpc;
diff --git a/src/gallium/drivers/r600/r600_state_common.c b/src/gallium/drivers/r600/r600_state_common.c
index 30c6181..259f426 100644
--- a/src/gallium/drivers/r600/r600_state_common.c
+++ b/src/gallium/drivers/r600/r600_state_common.c
@@ -112,7 +112,7 @@ void r600_bind_rs_state(struct pipe_context *ctx, void *state)
 		r600_polygon_offset_update(rctx);
 	}
 	if (rctx->ps_shader && rctx->vs_shader)
-		r600_spi_update(rctx);
+		rctx->spi_dirty = true;
 }
 
 void r600_delete_rs_state(struct pipe_context *ctx, void *state)
@@ -274,7 +274,7 @@ void r600_bind_ps_shader(struct pipe_context *ctx, void *state)
 		r600_context_pipe_state_set(&rctx->ctx, &rctx->ps_shader->rstate);
 	}
 	if (rctx->ps_shader && rctx->vs_shader) {
-		r600_spi_update(rctx);
+		rctx->spi_dirty = true;
 		r600_adjust_gprs(rctx);
 	}
 }
@@ -289,7 +289,7 @@ void r600_bind_vs_shader(struct pipe_context *ctx, void *state)
 		r600_context_pipe_state_set(&rctx->ctx, &rctx->vs_shader->rstate);
 	}
 	if (rctx->ps_shader && rctx->vs_shader) {
-		r600_spi_update(rctx);
+		rctx->spi_dirty = true;
 		r600_adjust_gprs(rctx);
 	}
 }
@@ -391,6 +391,7 @@ static void r600_spi_update(struct r600_pipe_context *rctx)
 		r600_pipe_state_mod_reg(rstate, tmp);
 	}
 
+	rctx->spi_dirty = false;
 	r600_context_pipe_state_set(&rctx->ctx, rstate);
 }
 
@@ -573,6 +574,9 @@ void r600_draw_vbo(struct pipe_context *ctx, const struct pipe_draw_info *info)
 	if (r600_conv_pipe_prim(draw.info.mode, &prim))
 		return;
 
+	if (rctx->spi_dirty)
+		r600_spi_update(rctx);
+
 	if (rctx->alpha_ref_dirty)
 		r600_update_alpha_ref(rctx);