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// SPDX-FileCopyrightText: Copyright 2019 yuzu Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#pragma once
#include <array>
#include "video_core/vulkan_common/vulkan_wrapper.h"
namespace Vulkan {
class Device;
class Scheduler;
struct DescriptorUpdateEntry {
struct Empty {};
DescriptorUpdateEntry() = default;
DescriptorUpdateEntry(VkDescriptorImageInfo image_) : image{image_} {}
DescriptorUpdateEntry(VkDescriptorBufferInfo buffer_) : buffer{buffer_} {}
DescriptorUpdateEntry(VkBufferView texel_buffer_) : texel_buffer{texel_buffer_} {}
union {
Empty empty{};
VkDescriptorImageInfo image;
VkDescriptorBufferInfo buffer;
VkBufferView texel_buffer;
};
};
class UpdateDescriptorQueue final {
// This should be plenty for the vast majority of cases. Most desktop platforms only
// provide up to 3 swapchain images.
static constexpr size_t FRAMES_IN_FLIGHT = 5;
static constexpr size_t FRAME_PAYLOAD_SIZE = 0x10000;
static constexpr size_t PAYLOAD_SIZE = FRAME_PAYLOAD_SIZE * FRAMES_IN_FLIGHT;
public:
explicit UpdateDescriptorQueue(const Device& device_, Scheduler& scheduler_);
~UpdateDescriptorQueue();
void TickFrame();
void Acquire();
const DescriptorUpdateEntry* UpdateData() const noexcept {
return upload_start;
}
void AddSampledImage(VkImageView image_view, VkSampler sampler) {
*(payload_cursor++) = VkDescriptorImageInfo{
.sampler = sampler,
.imageView = image_view,
.imageLayout = VK_IMAGE_LAYOUT_GENERAL,
};
}
void AddImage(VkImageView image_view) {
*(payload_cursor++) = VkDescriptorImageInfo{
.sampler = VK_NULL_HANDLE,
.imageView = image_view,
.imageLayout = VK_IMAGE_LAYOUT_GENERAL,
};
}
void AddBuffer(VkBuffer buffer, VkDeviceSize offset, VkDeviceSize size) {
*(payload_cursor++) = VkDescriptorBufferInfo{
.buffer = buffer,
.offset = offset,
.range = size,
};
}
void AddTexelBuffer(VkBufferView texel_buffer) {
*(payload_cursor++) = texel_buffer;
}
private:
const Device& device;
Scheduler& scheduler;
size_t frame_index{0};
DescriptorUpdateEntry* payload_cursor = nullptr;
DescriptorUpdateEntry* payload_start = nullptr;
const DescriptorUpdateEntry* upload_start = nullptr;
std::array<DescriptorUpdateEntry, PAYLOAD_SIZE> payload;
};
} // namespace Vulkan
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