1 files changed, 86 insertions, 0 deletions

diff --git a/src/video_core/renderer_vulkan/vk_update_descriptor.h b/src/video_core/renderer_vulkan/vk_update_descriptor.h
new file mode 100644
index 000000000..8c825aa29
--- /dev/null
+++ b/src/video_core/renderer_vulkan/vk_update_descriptor.h
@@ -0,0 +1,86 @@
+// Copyright 2019 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <type_traits>
+#include <variant>
+#include <boost/container/static_vector.hpp>
+
+#include "common/common_types.h"
+#include "video_core/renderer_vulkan/declarations.h"
+
+namespace Vulkan {
+
+class VKDevice;
+class VKScheduler;
+
+class DescriptorUpdateEntry {
+public:
+    explicit DescriptorUpdateEntry() : image{} {}
+
+    DescriptorUpdateEntry(vk::DescriptorImageInfo image) : image{image} {}
+
+    DescriptorUpdateEntry(vk::Buffer buffer, vk::DeviceSize offset, vk::DeviceSize size)
+        : buffer{buffer, offset, size} {}
+
+    DescriptorUpdateEntry(vk::BufferView texel_buffer) : texel_buffer{texel_buffer} {}
+
+private:
+    union {
+        vk::DescriptorImageInfo image;
+        vk::DescriptorBufferInfo buffer;
+        vk::BufferView texel_buffer;
+    };
+};
+
+class VKUpdateDescriptorQueue final {
+public:
+    explicit VKUpdateDescriptorQueue(const VKDevice& device, VKScheduler& scheduler);
+    ~VKUpdateDescriptorQueue();
+
+    void TickFrame();
+
+    void Acquire();
+
+    void Send(vk::DescriptorUpdateTemplate update_template, vk::DescriptorSet set);
+
+    void AddSampledImage(vk::Sampler sampler, vk::ImageView image_view) {
+        entries.emplace_back(vk::DescriptorImageInfo{sampler, image_view, {}});
+    }
+
+    void AddImage(vk::ImageView image_view) {
+        entries.emplace_back(vk::DescriptorImageInfo{{}, image_view, {}});
+    }
+
+    void AddBuffer(const vk::Buffer* buffer, u64 offset, std::size_t size) {
+        entries.push_back(Buffer{buffer, offset, size});
+    }
+
+    void AddTexelBuffer(vk::BufferView texel_buffer) {
+        entries.emplace_back(texel_buffer);
+    }
+
+    vk::ImageLayout* GetLastImageLayout() {
+        return &std::get<vk::DescriptorImageInfo>(entries.back()).imageLayout;
+    }
+
+private:
+    struct Buffer {
+        const vk::Buffer* buffer{};
+        u64 offset{};
+        std::size_t size{};
+    };
+    using Variant = std::variant<vk::DescriptorImageInfo, Buffer, vk::BufferView>;
+    // Old gcc versions don't consider this trivially copyable.
+    // static_assert(std::is_trivially_copyable_v<Variant>);
+
+    const VKDevice& device;
+    VKScheduler& scheduler;
+
+    boost::container::static_vector<Variant, 0x400> entries;
+    boost::container::static_vector<DescriptorUpdateEntry, 0x10000> payload;
+};
+
+} // namespace Vulkan