You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
107 lines
3.7 KiB
107 lines
3.7 KiB
/****************************************************************************
|
|
Copyright (c) 2020-2023 Xiamen Yaji Software Co., Ltd.
|
|
|
|
http://www.cocos.com
|
|
|
|
Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
of this software and associated documentation files (the "Software"), to deal
|
|
in the Software without restriction, including without limitation the rights to
|
|
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
|
|
of the Software, and to permit persons to whom the Software is furnished to do so,
|
|
subject to the following conditions:
|
|
|
|
The above copyright notice and this permission notice shall be included in
|
|
all copies or substantial portions of the Software.
|
|
|
|
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
THE SOFTWARE.
|
|
****************************************************************************/
|
|
|
|
#pragma once
|
|
|
|
#include <tbb/flow_graph.h>
|
|
#include "base/std/container/deque.h"
|
|
#include "base/std/container/vector.h"
|
|
|
|
namespace cc {
|
|
|
|
using TBBJobToken = tbb::flow::continue_msg;
|
|
|
|
class TBBJobSystem;
|
|
|
|
class TBBJobGraph final {
|
|
public:
|
|
explicit TBBJobGraph(TBBJobSystem *system) noexcept {
|
|
_nodes.emplace_back(_graph, [](TBBJobToken t) {});
|
|
}
|
|
|
|
template <typename Function>
|
|
uint32_t createJob(Function &&func) noexcept;
|
|
|
|
template <typename Function>
|
|
uint32_t createForEachIndexJob(uint32_t begin, uint32_t end, uint32_t step, Function &&func) noexcept;
|
|
|
|
void makeEdge(uint32_t j1, uint32_t j2) noexcept;
|
|
|
|
void run() noexcept;
|
|
|
|
inline void waitForAll() {
|
|
if (_pending) {
|
|
_graph.wait_for_all();
|
|
_pending = false;
|
|
}
|
|
}
|
|
|
|
private:
|
|
static constexpr uint32_t PARALLEL_JOB_FLAG = 1u << 20;
|
|
static constexpr uint32_t PARALLEL_JOB_MASK = ~PARALLEL_JOB_FLAG;
|
|
|
|
tbb::flow::graph _graph;
|
|
|
|
using TBBJobNode = tbb::flow::continue_node<tbb::flow::continue_msg>;
|
|
ccstd::deque<TBBJobNode> _nodes; // existing nodes cannot be invalidated
|
|
|
|
struct TBBParallelJob {
|
|
uint32_t predecessor = 0u;
|
|
uint32_t successor = 0u;
|
|
};
|
|
ccstd::vector<TBBParallelJob> _parallelJobs;
|
|
|
|
bool _pending = false;
|
|
};
|
|
|
|
template <typename Function>
|
|
uint32_t TBBJobGraph::createJob(Function &&func) noexcept {
|
|
_nodes.emplace_back(_graph, func);
|
|
tbb::flow::make_edge(_nodes.front(), _nodes.back());
|
|
return static_cast<uint32_t>(_nodes.size() - 1u);
|
|
}
|
|
|
|
template <typename Function>
|
|
uint32_t TBBJobGraph::createForEachIndexJob(uint32_t begin, uint32_t end, uint32_t step, Function &&func) noexcept {
|
|
_nodes.emplace_back(_graph, [](TBBJobToken t) {});
|
|
auto predecessorIdx = static_cast<uint32_t>(_nodes.size() - 1u);
|
|
TBBJobNode &predecessor = _nodes.back();
|
|
|
|
tbb::flow::make_edge(_nodes.front(), predecessor);
|
|
|
|
_nodes.emplace_back(_graph, [](TBBJobToken t) {});
|
|
auto successorIdx = static_cast<uint32_t>(_nodes.size() - 1u);
|
|
TBBJobNode &successor = _nodes.back();
|
|
|
|
for (uint32_t i = begin; i < end; i += step) {
|
|
_nodes.emplace_back(_graph, [i, &func](TBBJobToken t) { func(i); });
|
|
tbb::flow::make_edge(predecessor, _nodes.back());
|
|
tbb::flow::make_edge(_nodes.back(), successor);
|
|
}
|
|
|
|
_parallelJobs.push_back({predecessorIdx, successorIdx});
|
|
return static_cast<uint32_t>((_parallelJobs.size() - 1u)) | PARALLEL_JOB_FLAG;
|
|
}
|
|
|
|
} // namespace cc
|
|
|