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// 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_H_
#define GPU_COMMAND_BUFFER_SERVICE_EXTERNAL_SEMAPHORE_H_
#include <vulkan/vulkan_core.h>
#include "base/memory/raw_ptr.h"
#include "base/types/pass_key.h"
#include "gpu/gpu_gles2_export.h"
#include "gpu/vulkan/semaphore_handle.h"
namespace viz {
class VulkanContextProvider;
}
namespace gpu {
class GPU_GLES2_EXPORT ExternalSemaphore {
public:
static ExternalSemaphore Create(viz::VulkanContextProvider* context_provider);
static ExternalSemaphore CreateFromHandle(
viz::VulkanContextProvider* context_provider,
SemaphoreHandle handle);
ExternalSemaphore();
ExternalSemaphore(ExternalSemaphore&& other);
ExternalSemaphore(base::PassKey<ExternalSemaphore>,
viz::VulkanContextProvider* context_provider,
VkSemaphore semaphore,
SemaphoreHandle handle);
~ExternalSemaphore();
ExternalSemaphore& operator=(ExternalSemaphore&& other);
ExternalSemaphore(const ExternalSemaphore&) = delete;
ExternalSemaphore& operator=(const ExternalSemaphore&) = delete;
explicit operator bool() const { return is_valid(); }
void Reset();
// Get the GL semaphore. The ownership is not transferred to caller.
unsigned int GetGLSemaphore();
// Get a VkSemaphore. The ownership is not transferred to caller.
VkSemaphore GetVkSemaphore();
bool is_valid() const { return context_provider_ && handle_.is_valid(); }
SemaphoreHandle handle() { return handle_.Duplicate(); }
// Take ownership of semaphore handle and then calls Reset().
SemaphoreHandle TakeSemaphoreHandle();
private:
raw_ptr<viz::VulkanContextProvider> context_provider_ = nullptr;
VkSemaphore semaphore_ = VK_NULL_HANDLE;
SemaphoreHandle handle_;
unsigned int gl_semaphore_ = 0;
};
} // namespace gpu
#endif // GPU_COMMAND_BUFFER_SERVICE_EXTERNAL_SEMAPHORE_H_
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