From e8d1fec60069e8ac85cdd7bcc9e87af43447122b Mon Sep 17 00:00:00 2001
From: greggameplayer <gregoire.hage@gmail.com>
Date: Fri, 30 Aug 2024 01:51:08 +0200
Subject: [PATCH] Implement SwapMode StandardReverse

---
 .../renderer_vulkan/liverpool_to_vk.cpp       | 20 ++++++++++++++++++-
 1 file changed, 19 insertions(+), 1 deletion(-)

diff --git a/src/video_core/renderer_vulkan/liverpool_to_vk.cpp b/src/video_core/renderer_vulkan/liverpool_to_vk.cpp
index 3ae19a82..7caad15d 100644
--- a/src/video_core/renderer_vulkan/liverpool_to_vk.cpp
+++ b/src/video_core/renderer_vulkan/liverpool_to_vk.cpp
@@ -585,10 +585,13 @@ vk::Format SurfaceFormat(AmdGpu::DataFormat data_format, AmdGpu::NumberFormat nu
 vk::Format AdjustColorBufferFormat(vk::Format base_format,
                                    Liverpool::ColorBuffer::SwapMode comp_swap, bool is_vo_surface) {
     ASSERT_MSG(comp_swap == Liverpool::ColorBuffer::SwapMode::Standard ||
-                   comp_swap == Liverpool::ColorBuffer::SwapMode::Alternate,
+                   comp_swap == Liverpool::ColorBuffer::SwapMode::Alternate ||
+                   comp_swap == Liverpool::ColorBuffer::SwapMode::StandardReverse,
                "Unsupported component swap mode {}", static_cast<u32>(comp_swap));
 
     const bool comp_swap_alt = comp_swap == Liverpool::ColorBuffer::SwapMode::Alternate;
+    const bool comp_swap_reverse = comp_swap == Liverpool::ColorBuffer::SwapMode::StandardReverse;
+
     if (comp_swap_alt) {
         switch (base_format) {
         case vk::Format::eR8G8B8A8Unorm:
@@ -602,6 +605,21 @@ vk::Format AdjustColorBufferFormat(vk::Format base_format,
         default:
             break;
         }
+    } else if (comp_swap_reverse) {
+        switch (base_format) {
+        case vk::Format::eR8G8B8A8Unorm:
+            return vk::Format::eA8B8G8R8UnormPack32;
+        case vk::Format::eB8G8R8A8Unorm:
+            return vk::Format::eA8B8G8R8UnormPack32;
+        case vk::Format::eR8G8B8A8Srgb:
+            return is_vo_surface ? vk::Format::eA8B8G8R8UnormPack32
+                                 : vk::Format::eA8B8G8R8SrgbPack32;
+        case vk::Format::eB8G8R8A8Srgb:
+            return is_vo_surface ? vk::Format::eA8B8G8R8UnormPack32
+                                 : vk::Format::eA8B8G8R8SrgbPack32;
+        default:
+            break;
+        }
     } else {
         if (is_vo_surface && base_format == vk::Format::eR8G8B8A8Srgb) {
             return vk::Format::eR8G8B8A8Unorm;