Giovanni Mascellani : dxgi: Consider vk_format a frontend field.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: e5c232eb4c459eefcb6ad3ae87554a83a98b0455
URL:    https://gitlab.winehq.org/wine/wine/-/commit/e5c232eb4c459eefcb6ad3ae87554a8...

Author: Giovanni Mascellani <gmascellani(a)codeweavers.com>
Date:   Thu Jun 22 12:59:13 2023 +0200

dxgi: Consider vk_format a frontend field.

This is an oversight in eec9c3a2f63555604dd6e357bb3280e82e14ff5b:
vk_format specifies the format used for the frontend resources. The backend
images could use a different format, depending on what the swapchain
supports.

Also, introduce the terms "frontend" and "backend" for the two sides
of the swapchain, which are probably easier to understand.

---

 dlls/dxgi/swapchain.c | 20 ++++++++++----------
 1 file changed, 10 insertions(+), 10 deletions(-)

diff --git a/dlls/dxgi/swapchain.c b/dlls/dxgi/swapchain.c
index 3409effaf21..eb5b750a546 100644
--- a/dlls/dxgi/swapchain.c
+++ b/dlls/dxgi/swapchain.c
@@ -1024,21 +1024,22 @@ struct d3d12_swapchain
     VkDevice vk_device;
     VkPhysicalDevice vk_physical_device;
 
-    /* D3D12 side of the swapchain: these objects are visible to the
-     * IDXGISwapChain client, so they must never be recreated, except
-     * when ResizeBuffers*() is called. */
+    /* D3D12 side of the swapchain (frontend): these objects are
+     * visible to the IDXGISwapChain client, so they must never be
+     * recreated, except when ResizeBuffers*() is called. */
     unsigned int buffer_count;
     VkDeviceMemory vk_memory;
     VkImage vk_images[DXGI_MAX_SWAP_CHAIN_BUFFERS];
     ID3D12Resource *buffers[DXGI_MAX_SWAP_CHAIN_BUFFERS];
     unsigned int current_buffer_index;
+    VkFormat vk_format;
 
-    /* Vulkan side of the swapchain: these objects are also destroyed
-     * and recreated when the Vulkan swapchain becomes out of date or
-     * when the synchronization interval is changed; this operation
-     * should be transparent to the IDXGISwapChain client (except for
-     * timings: recreating the Vulkan swapchain creates a noticeable
-     * delay, unfortunately). */
+    /* Vulkan side of the swapchain (backend): these objects are also
+     * destroyed and recreated when the Vulkan swapchain becomes out
+     * of date or when the synchronization interval is changed; this
+     * operation should be transparent to the IDXGISwapChain client
+     * (except for timings: recreating the Vulkan swapchain creates a
+     * noticeable delay, unfortunately). */
     VkSwapchainKHR vk_swapchain;
     VkCommandPool vk_cmd_pool;
     VkImage vk_swapchain_images[DXGI_MAX_SWAP_CHAIN_BUFFERS];
@@ -1047,7 +1048,6 @@ struct d3d12_swapchain
     unsigned int vk_swapchain_width;
     unsigned int vk_swapchain_height;
     VkPresentModeKHR present_mode;
-    VkFormat vk_format;
 
     uint32_t vk_image_index;