From 1362ae38d49b2007f2afcee3b1eeffcf2f69dfd9 Mon Sep 17 00:00:00 2001
From: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Date: Mon, 22 Jan 2024 16:29:16 -0400
Subject: [PATCH] asahi: optimize "no changes" case

drawoverhead case 1

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/27616>
---
 src/gallium/drivers/asahi/agx_state.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/gallium/drivers/asahi/agx_state.c b/src/gallium/drivers/asahi/agx_state.c
index 762b6de5201..68d12fa50d4 100644
--- a/src/gallium/drivers/asahi/agx_state.c
+++ b/src/gallium/drivers/asahi/agx_state.c
@@ -3563,6 +3563,11 @@ agx_encode_state(struct agx_batch *batch, uint8_t *out, bool is_lines,
                  bool is_points)
 {
    struct agx_context *ctx = batch->ctx;
+
+   /* If nothing is dirty, encode nothing */
+   if (!ctx->dirty)
+      return out;
+
    struct agx_rasterizer *rast = ctx->rast;
    unsigned ppp_updates = 0;