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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 <optional>
#include <tuple>
#include "common/assert.h"
#include "common/bit_util.h"
#include "core/core.h"
#include "video_core/renderer_vulkan/declarations.h"
#include "video_core/renderer_vulkan/vk_buffer_cache.h"
#include "video_core/renderer_vulkan/vk_device.h"
#include "video_core/renderer_vulkan/vk_scheduler.h"
#include "video_core/renderer_vulkan/vk_stream_buffer.h"
namespace Vulkan {
namespace {
const auto BufferUsage =
vk::BufferUsageFlagBits::eVertexBuffer | vk::BufferUsageFlagBits::eIndexBuffer |
vk::BufferUsageFlagBits::eUniformBuffer | vk::BufferUsageFlagBits::eStorageBuffer;
const auto UploadPipelineStage =
vk::PipelineStageFlagBits::eTransfer | vk::PipelineStageFlagBits::eVertexInput |
vk::PipelineStageFlagBits::eVertexShader | vk::PipelineStageFlagBits::eFragmentShader |
vk::PipelineStageFlagBits::eComputeShader;
const auto UploadAccessBarriers =
vk::AccessFlagBits::eTransferRead | vk::AccessFlagBits::eShaderRead |
vk::AccessFlagBits::eUniformRead | vk::AccessFlagBits::eVertexAttributeRead |
vk::AccessFlagBits::eIndexRead;
auto CreateStreamBuffer(const VKDevice& device, VKScheduler& scheduler) {
return std::make_unique<VKStreamBuffer>(device, scheduler, BufferUsage);
}
} // Anonymous namespace
CachedBufferBlock::CachedBufferBlock(const VKDevice& device, VKMemoryManager& memory_manager,
CacheAddr cache_addr, std::size_t size)
: VideoCommon::BufferBlock{cache_addr, size} {
const vk::BufferCreateInfo buffer_ci({}, static_cast<vk::DeviceSize>(size),
BufferUsage | vk::BufferUsageFlagBits::eTransferSrc |
vk::BufferUsageFlagBits::eTransferDst,
vk::SharingMode::eExclusive, 0, nullptr);
const auto& dld{device.GetDispatchLoader()};
const auto dev{device.GetLogical()};
buffer.handle = dev.createBufferUnique(buffer_ci, nullptr, dld);
buffer.commit = memory_manager.Commit(*buffer.handle, false);
}
CachedBufferBlock::~CachedBufferBlock() = default;
VKBufferCache::VKBufferCache(VideoCore::RasterizerInterface& rasterizer, Core::System& system,
const VKDevice& device, VKMemoryManager& memory_manager,
VKScheduler& scheduler, VKStagingBufferPool& staging_pool)
: VideoCommon::BufferCache<Buffer, vk::Buffer, VKStreamBuffer>{rasterizer, system,
CreateStreamBuffer(device,
scheduler)},
device{device}, memory_manager{memory_manager}, scheduler{scheduler}, staging_pool{
staging_pool} {}
VKBufferCache::~VKBufferCache() = default;
Buffer VKBufferCache::CreateBlock(CacheAddr cache_addr, std::size_t size) {
return std::make_shared<CachedBufferBlock>(device, memory_manager, cache_addr, size);
}
const vk::Buffer* VKBufferCache::ToHandle(const Buffer& buffer) {
return buffer->GetHandle();
}
const vk::Buffer* VKBufferCache::GetEmptyBuffer(std::size_t size) {
size = std::max(size, std::size_t(4));
const auto& empty = staging_pool.GetUnusedBuffer(size, false);
scheduler.RequestOutsideRenderPassOperationContext();
scheduler.Record([size, buffer = *empty.handle](vk::CommandBuffer cmdbuf, auto& dld) {
cmdbuf.fillBuffer(buffer, 0, size, 0, dld);
});
return &*empty.handle;
}
void VKBufferCache::UploadBlockData(const Buffer& buffer, std::size_t offset, std::size_t size,
const u8* data) {
const auto& staging = staging_pool.GetUnusedBuffer(size, true);
std::memcpy(staging.commit->Map(size), data, size);
scheduler.RequestOutsideRenderPassOperationContext();
scheduler.Record([staging = *staging.handle, buffer = *buffer->GetHandle(), offset,
size](auto cmdbuf, auto& dld) {
cmdbuf.copyBuffer(staging, buffer, {{0, offset, size}}, dld);
cmdbuf.pipelineBarrier(
vk::PipelineStageFlagBits::eTransfer, UploadPipelineStage, {}, {},
{vk::BufferMemoryBarrier(vk::AccessFlagBits::eTransferWrite, UploadAccessBarriers,
VK_QUEUE_FAMILY_IGNORED, VK_QUEUE_FAMILY_IGNORED, buffer,
offset, size)},
{}, dld);
});
}
void VKBufferCache::DownloadBlockData(const Buffer& buffer, std::size_t offset, std::size_t size,
u8* data) {
const auto& staging = staging_pool.GetUnusedBuffer(size, true);
scheduler.RequestOutsideRenderPassOperationContext();
scheduler.Record([staging = *staging.handle, buffer = *buffer->GetHandle(), offset,
size](auto cmdbuf, auto& dld) {
cmdbuf.pipelineBarrier(
vk::PipelineStageFlagBits::eVertexShader | vk::PipelineStageFlagBits::eFragmentShader |
vk::PipelineStageFlagBits::eComputeShader,
vk::PipelineStageFlagBits::eTransfer, {}, {},
{vk::BufferMemoryBarrier(vk::AccessFlagBits::eShaderWrite,
vk::AccessFlagBits::eTransferRead, VK_QUEUE_FAMILY_IGNORED,
VK_QUEUE_FAMILY_IGNORED, buffer, offset, size)},
{}, dld);
cmdbuf.copyBuffer(buffer, staging, {{offset, 0, size}}, dld);
});
scheduler.Finish();
std::memcpy(data, staging.commit->Map(size), size);
}
void VKBufferCache::CopyBlock(const Buffer& src, const Buffer& dst, std::size_t src_offset,
std::size_t dst_offset, std::size_t size) {
scheduler.RequestOutsideRenderPassOperationContext();
scheduler.Record([src_buffer = *src->GetHandle(), dst_buffer = *dst->GetHandle(), src_offset,
dst_offset, size](auto cmdbuf, auto& dld) {
cmdbuf.copyBuffer(src_buffer, dst_buffer, {{src_offset, dst_offset, size}}, dld);
cmdbuf.pipelineBarrier(
vk::PipelineStageFlagBits::eTransfer, UploadPipelineStage, {}, {},
{vk::BufferMemoryBarrier(vk::AccessFlagBits::eTransferRead,
vk::AccessFlagBits::eShaderWrite, VK_QUEUE_FAMILY_IGNORED,
VK_QUEUE_FAMILY_IGNORED, src_buffer, src_offset, size),
vk::BufferMemoryBarrier(vk::AccessFlagBits::eTransferWrite, UploadAccessBarriers,
VK_QUEUE_FAMILY_IGNORED, VK_QUEUE_FAMILY_IGNORED, dst_buffer,
dst_offset, size)},
{}, dld);
});
}
} // namespace Vulkan
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