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// Copyright 2019 yuzu Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include <algorithm>
#include <cstring>
#include <memory>
#include "core/core.h"
#include "video_core/buffer_cache/buffer_cache.h"
#include "video_core/renderer_vulkan/vk_buffer_cache.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 {
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 VkPipelineStageFlags UPLOAD_PIPELINE_STAGE =
VK_PIPELINE_STAGE_TRANSFER_BIT | VK_PIPELINE_STAGE_VERTEX_INPUT_BIT |
VK_PIPELINE_STAGE_VERTEX_SHADER_BIT | VK_PIPELINE_STAGE_FRAGMENT_SHADER_BIT |
VK_PIPELINE_STAGE_COMPUTE_SHADER_BIT;
constexpr VkAccessFlags UPLOAD_ACCESS_BARRIERS =
VK_ACCESS_TRANSFER_READ_BIT | VK_ACCESS_SHADER_READ_BIT | VK_ACCESS_UNIFORM_READ_BIT |
VK_ACCESS_VERTEX_ATTRIBUTE_READ_BIT | VK_ACCESS_INDEX_READ_BIT;
constexpr VkAccessFlags TRANSFORM_FEEDBACK_WRITE_ACCESS =
VK_ACCESS_TRANSFORM_FEEDBACK_WRITE_BIT_EXT | VK_ACCESS_TRANSFORM_FEEDBACK_COUNTER_WRITE_BIT_EXT;
} // Anonymous namespace
Buffer::Buffer(const Device& device_, MemoryAllocator& memory_allocator, VKScheduler& scheduler_,
StagingBufferPool& staging_pool_, VAddr cpu_addr_, std::size_t size_)
: BufferBlock{cpu_addr_, size_}, device{device_}, scheduler{scheduler_}, staging_pool{
staging_pool_} {
buffer = device.GetLogical().CreateBuffer(VkBufferCreateInfo{
.sType = VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO,
.pNext = nullptr,
.flags = 0,
.size = static_cast<VkDeviceSize>(size_),
.usage = BUFFER_USAGE | VK_BUFFER_USAGE_TRANSFER_SRC_BIT | VK_BUFFER_USAGE_TRANSFER_DST_BIT,
.sharingMode = VK_SHARING_MODE_EXCLUSIVE,
.queueFamilyIndexCount = 0,
.pQueueFamilyIndices = nullptr,
});
commit = memory_allocator.Commit(buffer, MemoryUsage::DeviceLocal);
}
Buffer::~Buffer() = default;
void Buffer::Upload(std::size_t offset, std::size_t data_size, const u8* data) {
const auto& staging = staging_pool.Request(data_size, MemoryUsage::Upload);
std::memcpy(staging.mapped_span.data(), data, data_size);
scheduler.RequestOutsideRenderPassOperationContext();
const VkBuffer handle = Handle();
scheduler.Record([staging = staging.buffer, handle, offset, data_size,
&device = device](vk::CommandBuffer cmdbuf) {
const VkBufferMemoryBarrier read_barrier{
.sType = VK_STRUCTURE_TYPE_BUFFER_MEMORY_BARRIER,
.pNext = nullptr,
.srcAccessMask =
VK_ACCESS_SHADER_WRITE_BIT | VK_ACCESS_TRANSFER_WRITE_BIT |
VK_ACCESS_HOST_WRITE_BIT |
(device.IsExtTransformFeedbackSupported() ? TRANSFORM_FEEDBACK_WRITE_ACCESS : 0),
.dstAccessMask = VK_ACCESS_TRANSFER_READ_BIT,
.srcQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED,
.dstQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED,
.buffer = handle,
.offset = offset,
.size = data_size,
};
const VkBufferMemoryBarrier write_barrier{
.sType = VK_STRUCTURE_TYPE_BUFFER_MEMORY_BARRIER,
.pNext = nullptr,
.srcAccessMask = VK_ACCESS_TRANSFER_WRITE_BIT,
.dstAccessMask = UPLOAD_ACCESS_BARRIERS,
.srcQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED,
.dstQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED,
.buffer = handle,
.offset = offset,
.size = data_size,
};
cmdbuf.PipelineBarrier(VK_PIPELINE_STAGE_ALL_COMMANDS_BIT, VK_PIPELINE_STAGE_TRANSFER_BIT,
0, read_barrier);
cmdbuf.CopyBuffer(staging, handle, VkBufferCopy{0, offset, data_size});
cmdbuf.PipelineBarrier(VK_PIPELINE_STAGE_TRANSFER_BIT, UPLOAD_PIPELINE_STAGE, 0,
write_barrier);
});
}
void Buffer::Download(std::size_t offset, std::size_t data_size, u8* data) {
auto staging = staging_pool.Request(data_size, MemoryUsage::Download);
scheduler.RequestOutsideRenderPassOperationContext();
const VkBuffer handle = Handle();
scheduler.Record(
[staging = staging.buffer, handle, offset, data_size](vk::CommandBuffer cmdbuf) {
const VkBufferMemoryBarrier barrier{
.sType = VK_STRUCTURE_TYPE_BUFFER_MEMORY_BARRIER,
.pNext = nullptr,
.srcAccessMask = VK_ACCESS_SHADER_WRITE_BIT,
.dstAccessMask = VK_ACCESS_TRANSFER_READ_BIT,
.srcQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED,
.dstQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED,
.buffer = handle,
.offset = offset,
.size = data_size,
};
cmdbuf.PipelineBarrier(VK_PIPELINE_STAGE_VERTEX_SHADER_BIT |
VK_PIPELINE_STAGE_FRAGMENT_SHADER_BIT |
VK_PIPELINE_STAGE_COMPUTE_SHADER_BIT,
VK_PIPELINE_STAGE_TRANSFER_BIT, 0, {}, barrier, {});
cmdbuf.CopyBuffer(handle, staging, VkBufferCopy{offset, 0, data_size});
});
scheduler.Finish();
std::memcpy(data, staging.mapped_span.data(), data_size);
}
void Buffer::CopyFrom(const Buffer& src, std::size_t src_offset, std::size_t dst_offset,
std::size_t copy_size) {
scheduler.RequestOutsideRenderPassOperationContext();
const VkBuffer dst_buffer = Handle();
scheduler.Record([src_buffer = src.Handle(), dst_buffer, src_offset, dst_offset,
copy_size](vk::CommandBuffer cmdbuf) {
cmdbuf.CopyBuffer(src_buffer, dst_buffer, VkBufferCopy{src_offset, dst_offset, copy_size});
std::array<VkBufferMemoryBarrier, 2> barriers;
barriers[0].sType = VK_STRUCTURE_TYPE_BUFFER_MEMORY_BARRIER;
barriers[0].pNext = nullptr;
barriers[0].srcAccessMask = VK_ACCESS_TRANSFER_READ_BIT;
barriers[0].dstAccessMask = VK_ACCESS_SHADER_WRITE_BIT;
barriers[0].srcQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED;
barriers[0].dstQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED;
barriers[0].buffer = src_buffer;
barriers[0].offset = src_offset;
barriers[0].size = copy_size;
barriers[1].sType = VK_STRUCTURE_TYPE_BUFFER_MEMORY_BARRIER;
barriers[1].pNext = nullptr;
barriers[1].srcAccessMask = VK_ACCESS_TRANSFER_WRITE_BIT;
barriers[1].dstAccessMask = UPLOAD_ACCESS_BARRIERS;
barriers[1].srcQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED;
barriers[1].dstQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED;
barriers[1].buffer = dst_buffer;
barriers[1].offset = dst_offset;
barriers[1].size = copy_size;
cmdbuf.PipelineBarrier(VK_PIPELINE_STAGE_TRANSFER_BIT, UPLOAD_PIPELINE_STAGE, 0, {},
barriers, {});
});
}
VKBufferCache::VKBufferCache(VideoCore::RasterizerInterface& rasterizer_,
Tegra::MemoryManager& gpu_memory_, Core::Memory::Memory& cpu_memory_,
const Device& device_, MemoryAllocator& memory_allocator_,
VKScheduler& scheduler_, VKStreamBuffer& stream_buffer_,
StagingBufferPool& staging_pool_)
: VideoCommon::BufferCache<Buffer, VkBuffer, VKStreamBuffer>{rasterizer_, gpu_memory_,
cpu_memory_, stream_buffer_},
device{device_}, memory_allocator{memory_allocator_}, scheduler{scheduler_},
staging_pool{staging_pool_} {}
VKBufferCache::~VKBufferCache() = default;
std::shared_ptr<Buffer> VKBufferCache::CreateBlock(VAddr cpu_addr, std::size_t size) {
return std::make_shared<Buffer>(device, memory_allocator, scheduler, staging_pool, cpu_addr,
size);
}
VKBufferCache::BufferInfo VKBufferCache::GetEmptyBuffer(std::size_t size) {
size = std::max(size, std::size_t(4));
const auto& empty = staging_pool.Request(size, MemoryUsage::DeviceLocal);
scheduler.RequestOutsideRenderPassOperationContext();
scheduler.Record([size, buffer = empty.buffer](vk::CommandBuffer cmdbuf) {
cmdbuf.FillBuffer(buffer, 0, size, 0);
});
return {empty.buffer, 0, 0};
}
} // namespace Vulkan
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