radeonsi: don't update polygon offset state if it has no effect

Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>

diff --git a/src/gallium/drivers/radeonsi/si_state.c b/src/gallium/drivers/radeonsi/si_state.c
index f698c59..d74f6e8 100644 (file)
--- a/src/gallium/drivers/radeonsi/si_state.c
+++ b/src/gallium/drivers/radeonsi/si_state.c
@@ -636,7 +636,7 @@ static void si_update_poly_offset_state(struct si_context *sctx)
 {
        struct si_state_rasterizer *rs = sctx->queued.named.rasterizer;
 
-       if (!rs || !sctx->framebuffer.state.zsbuf)
+       if (!rs || !rs->uses_poly_offset || !sctx->framebuffer.state.zsbuf)
                return;
 
        switch (sctx->framebuffer.state.zsbuf->texture->format) {
@@ -691,6 +691,8 @@ static void *si_create_rs_state(struct pipe_context *ctx,
        rs->poly_stipple_enable = state->poly_stipple_enable;
        rs->line_smooth = state->line_smooth;
        rs->poly_smooth = state->poly_smooth;
+       rs->uses_poly_offset = state->offset_point || state->offset_line ||
+                              state->offset_tri;
 
        rs->flatshade = state->flatshade;
        rs->sprite_coord_enable = state->sprite_coord_enable;

diff --git a/src/gallium/drivers/radeonsi/si_state.h b/src/gallium/drivers/radeonsi/si_state.h
index 3718e05..900b70f 100644 (file)
--- a/src/gallium/drivers/radeonsi/si_state.h
+++ b/src/gallium/drivers/radeonsi/si_state.h
@@ -58,6 +58,7 @@ struct si_state_rasterizer {
        bool                    poly_stipple_enable;
        bool                    line_smooth;
        bool                    poly_smooth;
+       bool                    uses_poly_offset;
 };
 
 struct si_dsa_stencil_ref_part {