[Mesa-dev] [PATCH] anv: gen9 doesn't support fast clear on single-sampled SRGB buffers

[Samuel Iglesias Gonsálvez]

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=108911

Signed-off-by: Samuel Iglesias Gonsálvez <siglesias at igalia.com>
---

Lionel, I have doubts if this is only for gen9 or it should be gen9+.
Can you confirm on gen10 if the sRGB bug is happening there and if this
fixes it? (You would need to adapt the GEN_GEN == 9 to >=).

 src/intel/vulkan/genX_cmd_buffer.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/intel/vulkan/genX_cmd_buffer.c b/src/intel/vulkan/genX_cmd_buffer.c
index 93b5269c6ba..cb08ef8df1e 100644
--- a/src/intel/vulkan/genX_cmd_buffer.c
+++ b/src/intel/vulkan/genX_cmd_buffer.c
@@ -324,6 +324,10 @@ color_attachment_compute_aux_usage(struct anv_device * device,
          break;
       }
 
+      /* Gen9 doesn't support fast clear on single-sampled SRGB buffers */
+      if (GEN_GEN == 9 && isl_format_is_srgb(iview->planes[0].isl.format) && iview->image->samples == 1)
+         att_state->fast_clear = false;
+
       /* Potentially, we could do partial fast-clears but doing so has crazy
        * alignment restrictions.  It's easier to just restrict to full size
        * fast clears for now.
-- 
2.19.1