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gpu / command_buffer / service / external_semaphore_pool.h [blame]
// Copyright 2020 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef GPU_COMMAND_BUFFER_SERVICE_EXTERNAL_SEMAPHORE_POOL_H_
#define GPU_COMMAND_BUFFER_SERVICE_EXTERNAL_SEMAPHORE_POOL_H_
#include <vulkan/vulkan_core.h>
#include <vector>
#include "base/containers/circular_deque.h"
#include "base/memory/raw_ptr.h"
#include "base/memory/weak_ptr.h"
#include "gpu/command_buffer/service/external_semaphore.h"
#include "gpu/gpu_gles2_export.h"
namespace gpu {
class SharedContextState;
class GPU_GLES2_EXPORT ExternalSemaphorePool {
public:
explicit ExternalSemaphorePool(SharedContextState* shared_context_state);
~ExternalSemaphorePool();
ExternalSemaphorePool(const ExternalSemaphorePool&) = delete;
ExternalSemaphorePool& operator=(const ExternalSemaphorePool&) = delete;
// Get a semaphore from the pool. If there is no semaphore available in the
// pool, a new semaphore will be created.
ExternalSemaphore GetOrCreateSemaphore();
// Return a semaphore to the pool. It can be reused or released immediately.
void ReturnSemaphore(ExternalSemaphore semaphore);
// Return semaphores to the pool. They can be reused or released immediately.
void ReturnSemaphores(std::vector<ExternalSemaphore> semaphores);
// Return semaphores to the pool. They cannot be reused or released until all
// submitted GPU work is finished.
void ReturnSemaphoresWithFenceHelper(
std::vector<ExternalSemaphore> semaphores);
private:
const raw_ptr<SharedContextState> shared_context_state_;
base::circular_deque<ExternalSemaphore> semaphores_;
base::WeakPtrFactory<ExternalSemaphorePool> weak_ptr_factory_{this};
};
} // namespace gpu
#endif // GPU_COMMAND_BUFFER_SERVICE_EXTERNAL_SEMAPHORE_POOL_H_