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// SPDX-FileCopyrightText: Copyright 2020 yuzu Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#include <algorithm>
#include <cstddef>
#include <utility>
#include <vector>
#include "video_core/renderer_vulkan/vk_query_cache.h"
#include "video_core/renderer_vulkan/vk_resource_pool.h"
#include "video_core/renderer_vulkan/vk_scheduler.h"
#include "video_core/vulkan_common/vulkan_device.h"
#include "video_core/vulkan_common/vulkan_wrapper.h"
namespace Vulkan {
using VideoCore::QueryType;
namespace {
constexpr std::array QUERY_TARGETS = {VK_QUERY_TYPE_OCCLUSION};
constexpr VkQueryType GetTarget(QueryType type) {
return QUERY_TARGETS[static_cast<std::size_t>(type)];
}
} // Anonymous namespace
QueryPool::QueryPool(const Device& device_, Scheduler& scheduler, QueryType type_)
: ResourcePool{scheduler.GetMasterSemaphore(), GROW_STEP}, device{device_}, type{type_} {}
QueryPool::~QueryPool() = default;
std::pair<VkQueryPool, u32> QueryPool::Commit() {
std::size_t index;
do {
index = CommitResource();
} 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;
}
QueryCache::QueryCache(VideoCore::RasterizerInterface& rasterizer_, const Device& device_,
Scheduler& scheduler_)
: QueryCacheBase{rasterizer_}, device{device_}, scheduler{scheduler_},
query_pools{
QueryPool{device_, scheduler_, QueryType::SamplesPassed},
} {}
QueryCache::~QueryCache() {
// TODO(Rodrigo): This is a hack to destroy all HostCounter instances before the base class
// destructor is called. The query cache should be redesigned to have a proper ownership model
// instead of using shared pointers.
for (size_t query_type = 0; query_type < VideoCore::NumQueryTypes; ++query_type) {
auto& stream = Stream(static_cast<QueryType>(query_type));
stream.Update(false);
stream.Reset();
}
}
std::pair<VkQueryPool, u32> QueryCache::AllocateQuery(QueryType type) {
return query_pools[static_cast<std::size_t>(type)].Commit();
}
void QueryCache::Reserve(QueryType type, std::pair<VkQueryPool, u32> query) {
query_pools[static_cast<std::size_t>(type)].Reserve(query);
}
HostCounter::HostCounter(QueryCache& cache_, std::shared_ptr<HostCounter> dependency_,
QueryType type_)
: HostCounterBase{std::move(dependency_)}, cache{cache_}, type{type_},
query{cache_.AllocateQuery(type_)}, tick{cache_.GetScheduler().CurrentTick()} {
const vk::Device* logical = &cache.GetDevice().GetLogical();
cache.GetScheduler().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.GetScheduler().Record(
[query = query](vk::CommandBuffer cmdbuf) { cmdbuf.EndQuery(query.first, query.second); });
}
u64 HostCounter::BlockingQuery() const {
cache.GetScheduler().Wait(tick);
u64 data;
const VkResult query_result = cache.GetDevice().GetLogical().GetQueryResults(
query.first, query.second, 1, sizeof(data), &data, sizeof(data),
VK_QUERY_RESULT_64_BIT | VK_QUERY_RESULT_WAIT_BIT);
switch (query_result) {
case VK_SUCCESS:
return data;
case VK_ERROR_DEVICE_LOST:
cache.GetDevice().ReportLoss();
[[fallthrough]];
default:
throw vk::Exception(query_result);
}
}
} // namespace Vulkan
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