From 2000fdfb7b27e5e2546098b44268fc74887b22a5 Mon Sep 17 00:00:00 2001
From: CamilleLaVey <camillelavey99@gmail.com>
Date: Mon, 17 Aug 2026 00:30:19 +0200
Subject: [vulkan, android] Initial implementation of LSFG-VK (#4263)

Pretty much self explanatory, own implementation based on LSFG-VK available with some additional reverse engineer work for the actual use of shaders inside Lossless.dll, we don't store/ bundle any tools that bypass security and self ownership: to use this feature is required to own your own copy of Lossless Scaling and I encourage to support developers behind this work.

Special thanks:

1.- THS - Original developer behind Lossless Scaling
2.- PancakeTAS - Developer behind LSFG-VK
3.- The Big Smolio The Sleeper (@gidoly)

Co-authored-by: lizzie <lizzie@eden-emu.dev>
Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/4263
---
 src/video_core/renderer_vulkan/present/util.cpp | 38 ++++++++++++++++++++++---
 1 file changed, 34 insertions(+), 4 deletions(-)

(limited to 'src/video_core/renderer_vulkan/present/util.cpp')

diff --git a/src/video_core/renderer_vulkan/present/util.cpp b/src/video_core/renderer_vulkan/present/util.cpp
index 2b83902bc0..11250687d6 100644
--- a/src/video_core/renderer_vulkan/present/util.cpp
+++ b/src/video_core/renderer_vulkan/present/util.cpp
@@ -320,15 +320,16 @@ vk::DescriptorPool CreateWrappedDescriptorPool(const Device& device, size_t max_
     });
 }
 
-vk::DescriptorSetLayout CreateWrappedDescriptorSetLayout(
-    const Device& device, std::initializer_list<VkDescriptorType> types) {
+vk::DescriptorSetLayout CreateWrappedDescriptorSetLayout(const Device& device,
+                                                         std::span<const VkDescriptorType> types,
+                                                         VkShaderStageFlags stages) {
     std::vector<VkDescriptorSetLayoutBinding> bindings(types.size());
     for (size_t i = 0; i < types.size(); i++) {
         bindings[i] = {
             .binding = static_cast<u32>(i),
-            .descriptorType = std::data(types)[i],
+            .descriptorType = types[i],
             .descriptorCount = 1,
-            .stageFlags = VK_SHADER_STAGE_VERTEX_BIT | VK_SHADER_STAGE_FRAGMENT_BIT,
+            .stageFlags = stages,
             .pImmutableSamplers = nullptr,
         };
     }
@@ -342,6 +343,13 @@ vk::DescriptorSetLayout CreateWrappedDescriptorSetLayout(
     });
 }
 
+vk::DescriptorSetLayout CreateWrappedDescriptorSetLayout(
+    const Device& device, std::initializer_list<VkDescriptorType> types,
+    VkShaderStageFlags stages) {
+    return CreateWrappedDescriptorSetLayout(
+        device, std::span<const VkDescriptorType>{std::data(types), types.size()}, stages);
+}
+
 vk::DescriptorSets CreateWrappedDescriptorSets(vk::DescriptorPool& pool,
                                                vk::Span<VkDescriptorSetLayout> layouts) {
     return pool.Allocate(VkDescriptorSetAllocateInfo{
@@ -353,6 +361,28 @@ vk::DescriptorSets CreateWrappedDescriptorSets(vk::DescriptorPool& pool,
     });
 }
 
+vk::Pipeline CreateWrappedComputePipeline(const Device& device, vk::PipelineLayout& layout,
+                                          VkShaderModule shader) {
+    return device.GetLogical().CreateComputePipeline(VkComputePipelineCreateInfo{
+        .sType = VK_STRUCTURE_TYPE_COMPUTE_PIPELINE_CREATE_INFO,
+        .pNext = nullptr,
+        .flags = 0,
+        .stage =
+            {
+                .sType = VK_STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_CREATE_INFO,
+                .pNext = nullptr,
+                .flags = 0,
+                .stage = VK_SHADER_STAGE_COMPUTE_BIT,
+                .module = shader,
+                .pName = "main",
+                .pSpecializationInfo = nullptr,
+            },
+        .layout = *layout,
+        .basePipelineHandle = VK_NULL_HANDLE,
+        .basePipelineIndex = 0,
+    });
+}
+
 vk::PipelineLayout CreateWrappedPipelineLayout(const Device& device,
                                                vk::DescriptorSetLayout& layout) {
     return device.GetLogical().CreatePipelineLayout(VkPipelineLayoutCreateInfo{
-- 
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