From 2d485e8fea41970c9443a081e68efdc9249a15e4 Mon Sep 17 00:00:00 2001
From: Simon Perretta <simon.perretta@imgtec.com>
Date: Tue, 23 Sep 2025 21:18:27 +0100
Subject: [PATCH] pvr: enable sampleRateShading feature

TODO: do something with pipeline create info?!

Signed-off-by: Simon Perretta <simon.perretta@imgtec.com>
Acked-by: Erik Faye-Lund <erik.faye-lund@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/37512>
---
 src/imagination/vulkan/pvr_device.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/src/imagination/vulkan/pvr_device.c b/src/imagination/vulkan/pvr_device.c
index 42488d9153a..dbcca244831 100644
--- a/src/imagination/vulkan/pvr_device.c
+++ b/src/imagination/vulkan/pvr_device.c
@@ -233,7 +233,7 @@ static void pvr_physical_device_get_supported_features(
       .independentBlend = false,
       .geometryShader = false,
       .tessellationShader = false,
-      .sampleRateShading = false,
+      .sampleRateShading = true,
       .dualSrcBlend = false,
       .logicOp = true,
       .multiDrawIndirect = false,
@@ -534,9 +534,9 @@ static bool pvr_physical_device_get_properties(
       .maxTexelGatherOffset = 0U,
 
       /* Requires sampleRateShading */
-      .minInterpolationOffset = 0.0f,
-      .maxInterpolationOffset = 0.0f,
-      .subPixelInterpolationOffsetBits = 0U,
+      .minInterpolationOffset = -0.5f,
+      .maxInterpolationOffset = 0.5f,
+      .subPixelInterpolationOffsetBits = 4U,
 
       .maxFramebufferWidth = 4096U,
       .maxFramebufferHeight = 4096U,