From 111088a6dbf3b4a6791249d4452efc9e9829426f Mon Sep 17 00:00:00 2001
From: Mary Guillemard <mary.guillemard@collabora.com>
Date: Wed, 26 Jun 2024 09:41:43 +0200
Subject: [PATCH] panvk: Implement and advertise anisotropy support

Signed-off-by: Mary Guillemard <mary.guillemard@collabora.com>
Reviewed-by: Erik Faye-Lund <erik.faye-lund@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29872>
---
 src/panfrost/vulkan/panvk_physical_device.c | 1 +
 src/panfrost/vulkan/panvk_vX_sampler.c      | 5 +++++
 2 files changed, 6 insertions(+)

diff --git a/src/panfrost/vulkan/panvk_physical_device.c b/src/panfrost/vulkan/panvk_physical_device.c
index 791a9dd0aa7..f27db154c63 100644
--- a/src/panfrost/vulkan/panvk_physical_device.c
+++ b/src/panfrost/vulkan/panvk_physical_device.c
@@ -107,6 +107,7 @@ get_features(const struct panvk_physical_device *device,
       .largePoints = true,
       .textureCompressionETC2 = true,
       .textureCompressionASTC_LDR = true,
+      .samplerAnisotropy = true,
       .shaderUniformBufferArrayDynamicIndexing = true,
       .shaderSampledImageArrayDynamicIndexing = true,
       .shaderStorageBufferArrayDynamicIndexing = true,
diff --git a/src/panfrost/vulkan/panvk_vX_sampler.c b/src/panfrost/vulkan/panvk_vX_sampler.c
index 8be4742deba..57eb39c9f06 100644
--- a/src/panfrost/vulkan/panvk_vX_sampler.c
+++ b/src/panfrost/vulkan/panvk_vX_sampler.c
@@ -135,6 +135,11 @@ panvk_per_arch(CreateSampler)(VkDevice _device,
       cfg.border_color_g = border_color.uint32[1];
       cfg.border_color_b = border_color.uint32[2];
       cfg.border_color_a = border_color.uint32[3];
+
+      if (pCreateInfo->anisotropyEnable && pCreateInfo->maxAnisotropy > 1) {
+         cfg.maximum_anisotropy = pCreateInfo->maxAnisotropy;
+         cfg.lod_algorithm = MALI_LOD_ALGORITHM_ANISOTROPIC;
+      }
    }
 
    *pSampler = panvk_sampler_to_handle(sampler);