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// Copyright 2020 yuzu Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include <algorithm>
#include <cstddef>
#include <utility>
#include <vector>
#include "video_core/renderer_vulkan/vk_device.h"
#include "video_core/renderer_vulkan/vk_query_cache.h"
#include "video_core/renderer_vulkan/vk_resource_manager.h"
#include "video_core/renderer_vulkan/vk_scheduler.h"
#include "video_core/renderer_vulkan/wrapper.h"
namespace Vulkan {
namespace {
constexpr std::array QUERY_TARGETS = {VK_QUERY_TYPE_OCCLUSION};
constexpr VkQueryType GetTarget(VideoCore::QueryType type) {
return QUERY_TARGETS[static_cast<std::size_t>(type)];
}
} // Anonymous namespace
QueryPool::QueryPool() : VKFencedPool{GROW_STEP} {}
QueryPool::~QueryPool() = default;
void QueryPool::Initialize(const VKDevice& device_, VideoCore::QueryType type_) {
device = &device_;
type = type_;
}
std::pair<VkQueryPool, u32> QueryPool::Commit(VKFence& fence) {
std::size_t index;
do {
index = CommitResource(fence);
} while (usage[index]);
usage[index] = true;
return {*pools[index / GROW_STEP], static_cast<u32>(index % GROW_STEP)};
}
void QueryPool::Allocate(std::size_t begin, std::size_t end) {
usage.resize(end);
pools.push_back(device->GetLogical().CreateQueryPool({
.sType = VK_STRUCTURE_TYPE_QUERY_POOL_CREATE_INFO,
.pNext = nullptr,
.flags = 0,
.queryType = GetTarget(type),
.queryCount = static_cast<u32>(end - begin),
.pipelineStatistics = 0,
}));
}
void QueryPool::Reserve(std::pair<VkQueryPool, u32> query) {
const auto it =
std::find_if(pools.begin(), pools.end(), [query_pool = query.first](vk::QueryPool& pool) {
return query_pool == *pool;
});
ASSERT(it != std::end(pools));
const std::ptrdiff_t pool_index = std::distance(std::begin(pools), it);
usage[pool_index * GROW_STEP + static_cast<std::ptrdiff_t>(query.second)] = false;
}
VKQueryCache::VKQueryCache(Core::System& system, VideoCore::RasterizerInterface& rasterizer,
const VKDevice& device, VKScheduler& scheduler)
: VideoCommon::QueryCacheBase<VKQueryCache, CachedQuery, CounterStream, HostCounter,
QueryPool>{system, rasterizer},
device{device}, scheduler{scheduler} {
for (std::size_t i = 0; i < static_cast<std::size_t>(VideoCore::NumQueryTypes); ++i) {
query_pools[i].Initialize(device, static_cast<VideoCore::QueryType>(i));
}
}
VKQueryCache::~VKQueryCache() = default;
std::pair<VkQueryPool, u32> VKQueryCache::AllocateQuery(VideoCore::QueryType type) {
return query_pools[static_cast<std::size_t>(type)].Commit(scheduler.GetFence());
}
void VKQueryCache::Reserve(VideoCore::QueryType type, std::pair<VkQueryPool, u32> query) {
query_pools[static_cast<std::size_t>(type)].Reserve(query);
}
HostCounter::HostCounter(VKQueryCache& cache, std::shared_ptr<HostCounter> dependency,
VideoCore::QueryType type)
: VideoCommon::HostCounterBase<VKQueryCache, HostCounter>{std::move(dependency)}, cache{cache},
type{type}, query{cache.AllocateQuery(type)}, ticks{cache.Scheduler().Ticks()} {
const vk::Device* logical = &cache.Device().GetLogical();
cache.Scheduler().Record([logical, query = query](vk::CommandBuffer cmdbuf) {
logical->ResetQueryPoolEXT(query.first, query.second, 1);
cmdbuf.BeginQuery(query.first, query.second, VK_QUERY_CONTROL_PRECISE_BIT);
});
}
HostCounter::~HostCounter() {
cache.Reserve(type, query);
}
void HostCounter::EndQuery() {
cache.Scheduler().Record(
[query = query](vk::CommandBuffer cmdbuf) { cmdbuf.EndQuery(query.first, query.second); });
}
u64 HostCounter::BlockingQuery() const {
if (ticks >= cache.Scheduler().Ticks()) {
cache.Scheduler().Flush();
}
u64 data;
const VkResult result = cache.Device().GetLogical().GetQueryResults(
query.first, query.second, 1, sizeof(data), &data, sizeof(data),
VK_QUERY_RESULT_64_BIT | VK_QUERY_RESULT_WAIT_BIT);
switch (result) {
case VK_SUCCESS:
return data;
case VK_ERROR_DEVICE_LOST:
cache.Device().ReportLoss();
[[fallthrough]];
default:
throw vk::Exception(result);
}
}
} // namespace Vulkan
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