From 047213fcbaffda7e769ed982bb1113c4383b5ee2 Mon Sep 17 00:00:00 2001
From: Mike Blumenkrantz <michael.blumenkrantz@gmail.com>
Date: Fri, 15 Sep 2023 09:29:49 -0400
Subject: [PATCH] tu: handle unused color attachments without crashing

if the format is not set then this attachment must be ignored

Fixes: 97da0a77341 ("tu: Rewrite to use common Vulkan dynamic state")
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/25121>
---
 src/freedreno/vulkan/tu_pipeline.cc | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/freedreno/vulkan/tu_pipeline.cc b/src/freedreno/vulkan/tu_pipeline.cc
index 5932a60..ba56cfd 100644
--- a/src/freedreno/vulkan/tu_pipeline.cc
+++ b/src/freedreno/vulkan/tu_pipeline.cc
@@ -2948,7 +2948,9 @@ tu_calc_bandwidth(struct tu_bandwidth *bandwidth,
       const VkFormat format = rp->color_attachment_formats[i];
 
       uint32_t write_bpp = 0;
-      if (att->write_mask == 0xf) {
+      if (format == VK_FORMAT_UNDEFINED) {
+         /* do nothing */
+      } else if (att->write_mask == 0xf) {
          write_bpp = vk_format_get_blocksizebits(format);
       } else {
          const enum pipe_format pipe_format = vk_format_to_pipe_format(format);
-- 
2.7.4