Henri Verbeet : wined3d: Use an sRGB fallback format for sRGB formats in wined3d_swapchain_vk_select_vk_format().

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 6f55c8d1c56ad0901a9a0d3a5216c97925a0c70f
URL:    https://source.winehq.org/git/wine.git/?a=commit;h=6f55c8d1c56ad0901a9a0d3a5216c97925a0c70f

Author: Henri Verbeet <hverbeet at codeweavers.com>
Date:   Wed Dec  9 15:22:56 2020 +0330

wined3d: Use an sRGB fallback format for sRGB formats in wined3d_swapchain_vk_select_vk_format().

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=50121
Signed-off-by: Henri Verbeet <hverbeet at codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard at winehq.org>

---

 dlls/wined3d/swapchain.c | 18 +++++++++++++++++-
 1 file changed, 17 insertions(+), 1 deletion(-)

diff --git a/dlls/wined3d/swapchain.c b/dlls/wined3d/swapchain.c
index ffffc18aa84..0c5a75ed02d 100644
--- a/dlls/wined3d/swapchain.c
+++ b/dlls/wined3d/swapchain.c
@@ -635,6 +635,22 @@ done:
     return supported;
 }
 
+static VkFormat get_swapchain_fallback_format(VkFormat vk_format)
+{
+    switch (vk_format)
+    {
+        case VK_FORMAT_R8G8B8A8_SRGB:
+            return VK_FORMAT_B8G8R8A8_SRGB;
+        case VK_FORMAT_R8G8B8A8_UNORM:
+        case VK_FORMAT_A2B10G10R10_UNORM_PACK32:
+        case VK_FORMAT_R16G16B16A16_SFLOAT:
+            return VK_FORMAT_B8G8R8A8_UNORM;
+        default:
+            WARN("Unhandled format %#x.\n", vk_format);
+            return VK_FORMAT_UNDEFINED;
+    }
+}
+
 static VkFormat wined3d_swapchain_vk_select_vk_format(struct wined3d_swapchain_vk *swapchain_vk,
         VkSurfaceKHR vk_surface)
 {
@@ -684,7 +700,7 @@ static VkFormat wined3d_swapchain_vk_select_vk_format(struct wined3d_swapchain_v
     if (i == format_count)
     {
         /* Try to create a swapchain with format conversion. */
-        vk_format = VK_FORMAT_B8G8R8A8_UNORM;
+        vk_format = get_swapchain_fallback_format(vk_format);
         WARN("Failed to find Vulkan swapchain format for %s.\n", debug_d3dformat(desc->backbuffer_format));
         for (i = 0; i < format_count; ++i)
         {