Module: Mesa
Branch: staging/22.2
Commit: c3cccad4415d63de5ca9ead5973716f61d44ce22
URL:    
http://cgit.freedesktop.org/mesa/mesa/commit/?id=c3cccad4415d63de5ca9ead5973716f61d44ce22

Author: Mike Blumenkrantz <[email protected]>
Date:   Wed Aug 31 20:16:35 2022 -0400

zink: only add srgb mutable for images with modifiers

these are supposed to be for dmabuf handling, so checking for mutable
swapchain is both pointless and wrong

Fixes: 28ee911ad67 ("zink: handle mutable swapchain images with dmabuf")

Reviewed-by: Emma Anholt <[email protected]>
Reviewed-by: Dave Airlie <[email protected]>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/18358>
(cherry picked from commit cd00a36d479ba0bda2a86f7d822c0dc4f93bcbb0)

---

 .pick_status.json                        | 2 +-
 src/gallium/drivers/zink/zink_resource.c | 6 +++++-
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/.pick_status.json b/.pick_status.json
index cc68b724875..d4cbbdfa5fb 100644
--- a/.pick_status.json
+++ b/.pick_status.json
@@ -6160,7 +6160,7 @@
         "description": "zink: only add srgb mutable for images with modifiers",
         "nominated": true,
         "nomination_type": 1,
-        "resolution": 0,
+        "resolution": 1,
         "main_sha": null,
         "because_sha": "28ee911ad67192bc7a0683b6061b89e372482faf"
     },
diff --git a/src/gallium/drivers/zink/zink_resource.c 
b/src/gallium/drivers/zink/zink_resource.c
index a1b4c9089a6..945f69ed108 100644
--- a/src/gallium/drivers/zink/zink_resource.c
+++ b/src/gallium/drivers/zink/zink_resource.c
@@ -657,7 +657,11 @@ resource_object_create(struct zink_screen *screen, const 
struct pipe_resource *t
       bool success = false;
       VkImageCreateInfo ici;
       enum pipe_format srgb = PIPE_FORMAT_NONE;
-      if (screen->info.have_KHR_swapchain_mutable_format) {
+      /* We use modifiers as a proxy for "this surface is used as a window 
system render target".
+       * For winsys, we need to be able to mutate between srgb and linear, but 
we don't need general
+       * image view/shader image format compatibility (that path means losing 
fast clears or compression on some hardware).
+       */
+      if (ici_modifier_count) {
          srgb = util_format_is_srgb(templ->format) ? 
util_format_linear(templ->format) : util_format_srgb(templ->format);
          /* why do these helpers have different default return values? */
          if (srgb == templ->format)

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