vk_stream_buffer: Remove unused stream buffer

Remove unused file.

src/video_core/renderer_vulkan/vk_stream_buffer.cpp

@@ -1,168 +0,0 @@
-// Copyright 2019 yuzu Emulator Project
-// Licensed under GPLv2 or any later version
-// Refer to the license.txt file included.
-
-#include <algorithm>
-#include <limits>
-#include <optional>
-#include <tuple>
-#include <vector>
-
-#include "common/alignment.h"
-#include "common/assert.h"
-#include "common/literals.h"
-#include "video_core/renderer_vulkan/vk_scheduler.h"
-#include "video_core/renderer_vulkan/vk_stream_buffer.h"
-#include "video_core/vulkan_common/vulkan_device.h"
-#include "video_core/vulkan_common/vulkan_wrapper.h"
-
-namespace Vulkan {
-
-namespace {
-
-using namespace Common::Literals;
-
-constexpr VkBufferUsageFlags BUFFER_USAGE =
-    VK_BUFFER_USAGE_VERTEX_BUFFER_BIT | VK_BUFFER_USAGE_INDEX_BUFFER_BIT |
-    VK_BUFFER_USAGE_UNIFORM_BUFFER_BIT | VK_BUFFER_USAGE_STORAGE_BUFFER_BIT;
-
-constexpr u64 WATCHES_INITIAL_RESERVE = 0x4000;
-constexpr u64 WATCHES_RESERVE_CHUNK = 0x1000;
-
-constexpr u64 PREFERRED_STREAM_BUFFER_SIZE = 256_MiB;
-
-/// Find a memory type with the passed requirements
-std::optional<u32> FindMemoryType(const VkPhysicalDeviceMemoryProperties& properties,
-                                  VkMemoryPropertyFlags wanted,
-                                  u32 filter = std::numeric_limits<u32>::max()) {
-    for (u32 i = 0; i < properties.memoryTypeCount; ++i) {
-        const auto flags = properties.memoryTypes[i].propertyFlags;
-        if ((flags & wanted) == wanted && (filter & (1U << i)) != 0) {
-            return i;
-        }
-    }
-    return std::nullopt;
-}
-
-/// Get the preferred host visible memory type.
-u32 GetMemoryType(const VkPhysicalDeviceMemoryProperties& properties,
-                  u32 filter = std::numeric_limits<u32>::max()) {
-    // Prefer device local host visible allocations. Both AMD and Nvidia now provide one.
-    // Otherwise search for a host visible allocation.
-    static constexpr auto HOST_MEMORY =
-        VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT | VK_MEMORY_PROPERTY_HOST_COHERENT_BIT;
-    static constexpr auto DYNAMIC_MEMORY = HOST_MEMORY | VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT;
-
-    std::optional preferred_type = FindMemoryType(properties, DYNAMIC_MEMORY);
-    if (!preferred_type) {
-        preferred_type = FindMemoryType(properties, HOST_MEMORY);
-        ASSERT_MSG(preferred_type, "No host visible and coherent memory type found");
-    }
-    return preferred_type.value_or(0);
-}
-
-} // Anonymous namespace
-
-VKStreamBuffer::VKStreamBuffer(const Device& device_, VKScheduler& scheduler_)
-    : device{device_}, scheduler{scheduler_} {
-    CreateBuffers();
-    ReserveWatches(current_watches, WATCHES_INITIAL_RESERVE);
-    ReserveWatches(previous_watches, WATCHES_INITIAL_RESERVE);
-}
-
-VKStreamBuffer::~VKStreamBuffer() = default;
-
-std::pair<u8*, u64> VKStreamBuffer::Map(u64 size, u64 alignment) {
-    ASSERT(size <= stream_buffer_size);
-    mapped_size = size;
-
-    if (alignment > 0) {
-        offset = Common::AlignUp(offset, alignment);
-    }
-
-    WaitPendingOperations(offset);
-
-    if (offset + size > stream_buffer_size) {
-        // The buffer would overflow, save the amount of used watches and reset the state.
-        invalidation_mark = current_watch_cursor;
-        current_watch_cursor = 0;
-        offset = 0;
-
-        // Swap watches and reset waiting cursors.
-        std::swap(previous_watches, current_watches);
-        wait_cursor = 0;
-        wait_bound = 0;
-
-        // Ensure that we don't wait for uncommitted fences.
-        scheduler.Flush();
-    }
-
-    return std::make_pair(memory.Map(offset, size), offset);
-}
-
-void VKStreamBuffer::Unmap(u64 size) {
-    ASSERT_MSG(size <= mapped_size, "Reserved size is too small");
-
-    memory.Unmap();
-
-    offset += size;
-
-    if (current_watch_cursor + 1 >= current_watches.size()) {
-        // Ensure that there are enough watches.
-        ReserveWatches(current_watches, WATCHES_RESERVE_CHUNK);
-    }
-    auto& watch = current_watches[current_watch_cursor++];
-    watch.upper_bound = offset;
-    watch.tick = scheduler.CurrentTick();
-}
-
-void VKStreamBuffer::CreateBuffers() {
-    const auto memory_properties = device.GetPhysical().GetMemoryProperties();
-    const u32 preferred_type = GetMemoryType(memory_properties);
-    const u32 preferred_heap = memory_properties.memoryTypes[preferred_type].heapIndex;
-
-    // Substract from the preferred heap size some bytes to avoid getting out of memory.
-    const VkDeviceSize heap_size = memory_properties.memoryHeaps[preferred_heap].size;
-    // As per DXVK's example, using `heap_size / 2`
-    const VkDeviceSize allocable_size = heap_size / 2;
-    buffer = device.GetLogical().CreateBuffer({
-        .sType = VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO,
-        .pNext = nullptr,
-        .flags = 0,
-        .size = std::min(PREFERRED_STREAM_BUFFER_SIZE, allocable_size),
-        .usage = BUFFER_USAGE,
-        .sharingMode = VK_SHARING_MODE_EXCLUSIVE,
-        .queueFamilyIndexCount = 0,
-        .pQueueFamilyIndices = nullptr,
-    });
-
-    const auto requirements = device.GetLogical().GetBufferMemoryRequirements(*buffer);
-    const u32 required_flags = requirements.memoryTypeBits;
-    stream_buffer_size = static_cast<u64>(requirements.size);
-
-    memory = device.GetLogical().AllocateMemory({
-        .sType = VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO,
-        .pNext = nullptr,
-        .allocationSize = requirements.size,
-        .memoryTypeIndex = GetMemoryType(memory_properties, required_flags),
-    });
-    buffer.BindMemory(*memory, 0);
-}
-
-void VKStreamBuffer::ReserveWatches(std::vector<Watch>& watches, std::size_t grow_size) {
-    watches.resize(watches.size() + grow_size);
-}
-
-void VKStreamBuffer::WaitPendingOperations(u64 requested_upper_bound) {
-    if (!invalidation_mark) {
-        return;
-    }
-    while (requested_upper_bound < wait_bound && wait_cursor < *invalidation_mark) {
-        auto& watch = previous_watches[wait_cursor];
-        wait_bound = watch.upper_bound;
-        scheduler.Wait(watch.tick);
-        ++wait_cursor;
-    }
-}
-
-} // namespace Vulkan

src/video_core/renderer_vulkan/vk_stream_buffer.h

@@ -1,76 +0,0 @@
-// Copyright 2019 yuzu Emulator Project
-// Licensed under GPLv2 or any later version
-// Refer to the license.txt file included.
-
-#pragma once
-
-#include <optional>
-#include <utility>
-#include <vector>
-
-#include "common/common_types.h"
-#include "video_core/vulkan_common/vulkan_wrapper.h"
-
-namespace Vulkan {
-
-class Device;
-class VKFenceWatch;
-class VKScheduler;
-
-class VKStreamBuffer final {
-public:
-    explicit VKStreamBuffer(const Device& device, VKScheduler& scheduler);
-    ~VKStreamBuffer();
-
-    /**
-     * Reserves a region of memory from the stream buffer.
-     * @param size Size to reserve.
-     * @returns A pair of a raw memory pointer (with offset added), and the buffer offset
-     */
-    std::pair<u8*, u64> Map(u64 size, u64 alignment);
-
-    /// Ensures that "size" bytes of memory are available to the GPU, potentially recording a copy.
-    void Unmap(u64 size);
-
-    VkBuffer Handle() const noexcept {
-        return *buffer;
-    }
-
-    u64 Address() const noexcept {
-        return 0;
-    }
-
-private:
-    struct Watch {
-        u64 tick{};
-        u64 upper_bound{};
-    };
-
-    /// Creates Vulkan buffer handles committing the required the required memory.
-    void CreateBuffers();
-
-    /// Increases the amount of watches available.
-    void ReserveWatches(std::vector<Watch>& watches, std::size_t grow_size);
-
-    void WaitPendingOperations(u64 requested_upper_bound);
-
-    const Device& device;   ///< Vulkan device manager.
-    VKScheduler& scheduler; ///< Command scheduler.
-
-    vk::Buffer buffer;        ///< Mapped buffer.
-    vk::DeviceMemory memory;  ///< Memory allocation.
-    u64 stream_buffer_size{}; ///< Stream buffer size.
-
-    u64 offset{};      ///< Buffer iterator.
-    u64 mapped_size{}; ///< Size reserved for the current copy.
-
-    std::vector<Watch> current_watches;           ///< Watches recorded in the current iteration.
-    std::size_t current_watch_cursor{};           ///< Count of watches, reset on invalidation.
-    std::optional<std::size_t> invalidation_mark; ///< Number of watches used in the previous cycle.
-
-    std::vector<Watch> previous_watches; ///< Watches used in the previous iteration.
-    std::size_t wait_cursor{};           ///< Last watch being waited for completion.
-    u64 wait_bound{};                    ///< Highest offset being watched for completion.
-};
-
-} // namespace Vulkan