From bbeee415eebf214c1658a86db9b6a48b5ece3056 Mon Sep 17 00:00:00 2001
From: Adam Jackson <ajax@redhat.com>
Date: Fri, 9 Apr 2021 16:41:41 -0400
Subject: [PATCH] zink: Learn about VK_KHR_swapchain

We're gonna want it eventually.

Reviewed-By: Mike Blumenkrantz <michael.blumenkrantz@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/10382>
---
 src/gallium/drivers/zink/zink_device_info.py | 1 +
 src/gallium/drivers/zink/zink_screen.c       | 5 +++++
 src/gallium/drivers/zink/zink_screen.h       | 3 +++
 3 files changed, 9 insertions(+)

diff --git a/src/gallium/drivers/zink/zink_device_info.py b/src/gallium/drivers/zink/zink_device_info.py
index 35db4dfb9b2..8754bc786be 100644
--- a/src/gallium/drivers/zink/zink_device_info.py
+++ b/src/gallium/drivers/zink/zink_device_info.py
@@ -137,6 +137,7 @@ EXTENSIONS = [
         alias="scalar_block_layout",
         features=True,
         conditions=["$feats.scalarBlockLayout"]),
+    Extension("VK_KHR_swapchain"),
 ]
 
 # constructor: Versions(device_version(major, minor, patch), struct_version(major, minor))
diff --git a/src/gallium/drivers/zink/zink_screen.c b/src/gallium/drivers/zink/zink_screen.c
index 78170a4e135..8cd0d804209 100644
--- a/src/gallium/drivers/zink/zink_screen.c
+++ b/src/gallium/drivers/zink/zink_screen.c
@@ -1203,6 +1203,11 @@ load_device_extensions(struct zink_screen *screen)
    }
 #endif // VK_EXTX_PORTABILITY_SUBSET_EXTENSION_NAME
 
+   if (screen->info.have_KHR_swapchain) {
+      GET_PROC_ADDR(CreateSwapchainKHR);
+      GET_PROC_ADDR(DestroySwapchainKHR);
+   }
+
    return true;
 }
 
diff --git a/src/gallium/drivers/zink/zink_screen.h b/src/gallium/drivers/zink/zink_screen.h
index 4a2e88d968c..ebfd231a2dd 100644
--- a/src/gallium/drivers/zink/zink_screen.h
+++ b/src/gallium/drivers/zink/zink_screen.h
@@ -146,6 +146,9 @@ struct zink_screen {
    PFN_vkGetIOSurfaceMVK vk_GetIOSurfaceMVK;
 #endif
 
+   PFN_vkCreateSwapchainKHR vk_CreateSwapchainKHR;
+   PFN_vkDestroySwapchainKHR vk_DestroySwapchainKHR;
+
    struct {
       bool dual_color_blend_by_location;
       bool inline_uniforms;