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 <vadimgir...@gmail.com>
Date:   Fri Jun 24 20:29:12 2011 +0400

r600g: optimize spi update

Signed-off-by: Vadim Girlin <vadimgir...@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);
 

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