From 127de27015756ce1dff063689186eb3024c5510a Mon Sep 17 00:00:00 2001
From: Faith Ekstrand <faith.ekstrand@collabora.com>
Date: Mon, 27 Oct 2025 11:15:50 -0400
Subject: [PATCH] vulkan/util: Add a vk_format_srgb_to_linear() helper

Reviewed-by: Mel Henning <mhenning@darkrefraction.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/38094>
---
 src/vulkan/util/vk_format.h | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/src/vulkan/util/vk_format.h b/src/vulkan/util/vk_format.h
index ca44c9c413c..2f26d2d539e 100644
--- a/src/vulkan/util/vk_format.h
+++ b/src/vulkan/util/vk_format.h
@@ -196,6 +196,16 @@ vk_format_is_srgb(VkFormat format)
    return util_format_is_srgb(vk_format_to_pipe_format(format));
 }
 
+static inline VkFormat
+vk_format_srgb_to_linear(VkFormat format)
+{
+   if (!vk_format_is_srgb(format))
+      return format;
+
+   return vk_format_from_pipe_format(
+      util_format_linear(vk_format_to_pipe_format(format)));
+}
+
 static inline bool vk_format_is_alpha(VkFormat format)
 {
    return util_format_is_alpha(vk_format_to_pipe_format(format));