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Vulkan-Samples/framework/semaphore_pool.h
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2025-09-04 10:54:47 +08:00

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/* Copyright (c) 2019-2025, Arm Limited and Contributors
*
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 the "License";
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#pragma once
#include "common/helpers.h"
#include "common/vk_common.h"
namespace vkb
{
namespace core
{
template <vkb::BindingType bindingType>
class Device;
using DeviceC = Device<vkb::BindingType::C>;
} // namespace core
class SemaphorePool
{
public:
SemaphorePool(vkb::core::DeviceC &device);
SemaphorePool(const SemaphorePool &) = delete;
SemaphorePool(SemaphorePool &&other) = delete;
~SemaphorePool();
SemaphorePool &operator=(const SemaphorePool &) = delete;
SemaphorePool &operator=(SemaphorePool &&) = delete;
VkSemaphore request_semaphore();
VkSemaphore request_semaphore_with_ownership();
void release_owned_semaphore(VkSemaphore semaphore);
void reset();
uint32_t get_active_semaphore_count() const;
private:
vkb::core::DeviceC &device;
std::vector<VkSemaphore> semaphores;
std::vector<VkSemaphore> released_semaphores;
uint32_t active_semaphore_count{0};
};
} // namespace vkb