On 04/25/2018 05:10 PM, Bas Nieuwenhuizen wrote:
Oops.

Yes, oops. :)


Reviewed-by: Bas Nieuwenhuizen <b...@basnieuwenhuizen.nl>

On Wed, Apr 25, 2018 at 10:56 AM, Samuel Pitoiset
<samuel.pitoi...@gmail.com> wrote:
dcc_msaa_allowed is always false on GFX9+ and only true on VI
if RADV_PERFTEST=dccmsaa is set. This means DCC was disabled
in some situations where it should not.

This is likely going to fix a performance regression.

Fixes: 2f63b3dd09 ("radv: enable DCC for MSAA 2x textures on VI under an 
option")
Cc: 18.1 <mesa-sta...@lists.freedesktop.org>
Signed-off-by: Samuel Pitoiset <samuel.pitoi...@gmail.com>
---
  src/amd/vulkan/radv_image.c | 12 ++++++------
  1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/src/amd/vulkan/radv_image.c b/src/amd/vulkan/radv_image.c
index 348f4c7b34..793f861f4f 100644
--- a/src/amd/vulkan/radv_image.c
+++ b/src/amd/vulkan/radv_image.c
@@ -133,12 +133,12 @@ radv_use_dcc_for_image(struct radv_device *device,
         if (create_info->scanout)
                 return false;

-       /* FIXME: DCC for MSAA with 4x and 8x samples doesn't work yet. */
-       if (pCreateInfo->samples > 2)
-               return false;
-
-       /* TODO: Enable DCC for MSAA textures. */
-       if (!device->physical_device->dcc_msaa_allowed)
+       /* FIXME: DCC for MSAA with 4x and 8x samples doesn't work yet, while
+        * 2x can be enabled with an option.
+        */
+       if (pCreateInfo->samples > 2 ||
+           (pCreateInfo->samples == 2 &&
+            !device->physical_device->dcc_msaa_allowed))
                 return false;

         /* Determine if the formats are DCC compatible. */
--
2.17.0

_______________________________________________
mesa-dev mailing list
mesa-dev@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/mesa-dev
_______________________________________________
mesa-dev mailing list
mesa-dev@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/mesa-dev

Reply via email to